Patent Description:
With continuous improvement of people's living standards, electronic devices such as mobile phones are widely used. An electronic device may include a housing, a screen disposed on the housing, and a middle frame, a screen chip, a screen outlet line, and a battery that are disposed on the housing, where the middle frame is disposed in parallel with the screen, the battery is disposed on a side that is of the middle frame and that is away from the screen, and the screen chip and the screen outlet line are disposed on a side that is of the middle frame and that is close to the screen.

To implement a large-screen display effect of the electronic device, a screen outlet end is generally located in a length direction of the electronic device, the screen chip and the screen outlet line are located just above a battery, and the battery is separated from the screen chip and the screen outlet line by using the middle frame of the housing. However, the screen chip is laminated to the screen outlet line, so that the screen chip forms a protruding structure relative to the screen outlet line. To ensure reliability of components in the electronic device, a gap between the screen chip and the middle frame needs to be greater than a gap between the screen outlet line and the middle frame. Consequently, a locally protruded screen chip increases an overall thickness of the electronic device.

<CIT> describes an electronic device which includes a housing including a radiating conductor, a circuit board including an integrated circuit (IC) chip, and a shielding member attached to the circuit board and surrounding the IC chip.

This application provides an electronic device, so as to resolve a problem that a local protrusion increases an overall thickness and particularly that a force applied to the screen does not cause a contact between the screen chip and a battery of the device.

According to the invention as claimed, there is provided a foldable screen electronic device, comprising a housing, wherein a display is disposed on the housing, a cavity is formed by the housing and the display, and a middle frame, a screen chip, a screen outlet line, and a battery are disposed in the cavity, wherein a screen outlet line is a circuit board formed based on a flexible encapsulation process; a middle frame hole is provided on the middle frame, and the middle frame hole penetrates the middle frame; the battery is disposed on a side that is of the middle frame and that is away from the display; the screen outlet line is disposed on a side that is of the middle frame and that is the side close to the display, the screen outlet line is connected to one end of the display, and a large surface of the screen outlet line is located between the display and the middle frame; and the screen chip is disposed on the large surface of the screen outlet line, and is located between the middle frame and the large surface of the screen outlet line, wherein the large surface of the screen outlet line is part of the screen outlet line that is bent along a direction from the display to the back of the device, located between the display and the middle frame; a protruding structure formed by the screen chip relative to the large surface of the screen outlet line is located in the middle frame hole, and a protruding height of the protruding structure is less than a depth of the middle frame hole. The electronic device is characterised by further comprising a reinforcement member disposed between the screen chip and the battery; wherein the reinforcement member is fastened around the middle frame hole, and is configured to prevent the screen chip from being in contact with the battery when the screen chip sinks due to applied force; wherein the reinforcement member comprises a bottom edge, a skirt edge, and a middle edge.

According to an aspect outside the scope of the invention as claimed, this application provides an electronic device, including a housing, where a display is disposed on the housing, a cavity is formed by the housing and the display, and a middle frame, a screen chip, a screen outlet line, and a battery are disposed in the cavity.

A groove is disposed on the middle frame, and a depth of the groove is less than a thickness of the middle frame;.

It can be learned from the foregoing technical solutions that an embodiment of this application provides an electronic device, where a middle frame hole is provided on the middle frame of the device. The screen chip and the screen outlet line are located on a side that is of the middle frame and that is close to the display, the battery is located on a side that is of the middle frame and that is away from the display, and the screen chip is laminated to the large surface of the screen outlet line. To avoid contact between the middle frame and the screen chip, the middle frame hole accommodates the screen chip, a protruding height of the screen chip relative to the large surface of the screen outlet line is less than a thickness of the middle frame hole, and a distance between the screen chip and the battery is greater than an avoidance distance of the screen chip. It can be learned that the electronic device avoids the screen chip by providing the middle frame hole, so that the screen chip is prevented from moving downward to be in contact with the middle frame when a user presses the display, thereby avoiding damage. In addition, in the manner of avoiding the screen chip by the middle frame hole, only a minimum wall thickness that meets a reliability requirement needs to be set for the middle frame. In this avoidance manner, an internal space of the electronic device can be fully used, and the wall thickness of the middle frame can be reduced while the screen chip is avoided, thereby further reducing the overall thickness of the electronic device.

To describe technical solutions of this application more clearly, the following briefly describes accompanying drawings required in embodiments.

Technical solutions in embodiments of this application will be clearly described with reference to accompanying drawings in embodiments of this application. Apparently, the described embodiments are merely some rather than all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on embodiments of this application without creative efforts shall fall within the protection scope of this application.

The terms "first", "second", and the like are used herein for description only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "a plurality of" means two or more.

In addition, in this application, the orientation terms such as "upper" and "lower" are defined relative to the orientations in which the components in the accompanying drawings are schematically placed. It should be understood that these orientation terms are relative concepts, are used for relative description and clarification, and may be correspondingly changed based on changes in the orientations in which the components are placed in the accompanying drawings.

<FIG> is a front view of a structure of an electronic device according to an embodiment of this application; and <FIG> is a rear view of a structure of an electronic device according to an embodiment of this application. Referring to <FIG>, an electronic device <NUM> provided in an embodiment of this application includes a housing and a display area <NUM> disposed on the housing, where the display area <NUM> is provided with a display, and the display may be a bendable display or a flexible display. The housing includes a first frame <NUM> and a second frame <NUM>. A rotation shaft is disposed between the two frames, and ends that are of two adjacent frames and that are close to the rotation shaft may rotate around the rotation shaft located between the two frames, so that the ends that are of the two frames and that are away from the rotation shaft are relatively close to each other or relatively far away from each other, and the electronic device <NUM> may correspondingly present different states such as a folded state or an unfolded state.

The display on the display area <NUM> covers surfaces of the two frames, and may correspondingly present a state such as a folded state or an unfolded state as positions of the two frames change. When the first frame <NUM> and the second frame <NUM> are unfolded, the first frame <NUM> and the second frame <NUM> are disposed side by side on a same plane. In this case, the display (the display area <NUM>) that covers surfaces of the two frames is unfolded to form a large display surface, and the display surface may be used as a separate display. A state shown in <FIG> is a state formed after the structure in <FIG> is turned upside down in a horizontal direction.

It should be noted that a quantity of the frames of the electronic device <NUM> may be two or more, and when the quantity of the frames is more than two, adjacent frames may rotate around mutually parallel rotation shafts to form a multi-layer folded structure, or may expand to obtain a larger display area. In the embodiments of this application, the electronic device <NUM> is mainly described by using two frames as an example.

<FIG> is a rear view of a display of an electronic device according to an embodiment of this application; <FIG> is a rear perspective view of an electronic device according to an embodiment of this application; and <FIG> is an overall perspective view of an electronic device according to an embodiment of this application. Referring to <FIG>, and <FIG>, the electronic device <NUM> includes components in the electronic device, such as a processor, a memory, a camera assembly, a screen chip <NUM>, a screen outlet line <NUM>, a flat cable <NUM>, and a battery <NUM>. For example, components such as the processor, the memory, and the camera assembly may be disposed in the first frame <NUM> (at a position that is corresponding to the first frame <NUM> and that is not marked with a reference sign on the left side as shown in <FIG>). The second frame <NUM> may be configured to carry components such as the screen chip <NUM>, the screen outlet line <NUM>, the flat cable <NUM>, and the battery <NUM>.

The screen chip <NUM>, that is, a screen IC (integrated circuit, IC), is a chip configured to drive the display to turn on. The screen chip is made of a fragile material, which is usually glass. The screen chip is fragile after being hit. Therefore, when the screen chip is disposed in the electronic device, a specific avoidance space needs to be reserved between the screen chip and another internal component.

In some embodiments, one screen chip is disposed in the electronic device, so as to turn on the display. However, to improve efficiency of turning on the display, alternatively, two screen chips may be disposed in the electronic device. For example, the two screen chips may be sequentially arranged in a length direction of the device (for example, for an electronic device with a foldable screen, it may be the length direction when the screen is folded).

A screen outlet line <NUM>, that is, a screen COP (chip on pi, COP), is a circuit board formed based on a flexible screen encapsulation process.

The flat cable <NUM>, also referred to as a flexible printed circuit (flexible printed circuit, FPC), is used for data transmission in a moving component and a moving area. In the field of electronic devices, the FPC is a data cable connected to the display on a handset board. The flat cable can be moved, bent, and twisted without damage to a conductor, and can conform to different shapes and special package sizes.

<FIG> is a partial sectional view of a cross section A-A in <FIG> according to an embodiment of this application. Referring to <FIG>, a display on the display area <NUM> covers the first frame <NUM> and the second frame <NUM>, and in a direction from the display area <NUM> to the back of the device, a gasket <NUM> is laminated to a lower part of the display, a screen outlet line <NUM> is provided at one end of the display, and the screen outlet line <NUM> is connected to one end of the display. The screen outlet line <NUM> is bent along a direction from the display to the back of the device, and a large surface (not shown in the figure) of the screen outlet line <NUM> is laminated to a lower surface of the gasket <NUM>, that is, a large surface of the screen outlet line <NUM> is evenly distributed on a surface that is of the gasket <NUM> and that is close to the back of the device, and the gasket <NUM> is configured to support the large surface. The screen chip <NUM> is laminated to a lower part of a large surface of the screen outlet line <NUM>, and the screen chip <NUM> is located between the middle frame <NUM> and the large surface of the screen outlet line <NUM>. The large surface of the screen outlet line <NUM> is not shown in the figure. In a direction from the display area <NUM> to the back of the device, an internal structure of the electronic device is sequentially as follows: the display, the gasket <NUM>, the large surface of a screen outlet line <NUM>, the screen chip <NUM>, and the middle frame <NUM>.

The flat cable <NUM> is located between the display and the middle frame <NUM>, and the flat cable <NUM> is laminated to the lower part of the display, and one end of the flat cable <NUM> extends to the large surface of the screen outlet line <NUM>, and is laminated to the large surface, which is equivalent to that one end of the flat cable <NUM> extends to the gasket <NUM>, and the extension end of the flat cable <NUM> is laminated to a same side of the large surface as the screen chip <NUM>. One end (that is, the extension end) of the flat cable <NUM> is connected to the screen outlet line <NUM>, and the other end of the flat cable <NUM> is connected to the processor. Although both the extension end of the flat cable <NUM> and the screen chip <NUM> are laminated to the large surface, there is no contact between the extension end of the flat cable <NUM> and the screen chip <NUM>; and there is a gap between the extension end of the flat cable <NUM> and the screen chip <NUM>, and a thickness of the extension end of the flat cable <NUM> is less than or equal to a thickness of the screen chip <NUM>. If the thickness of the extension end of the flat cable <NUM> is greater than the thickness of the screen chip <NUM>, a higher avoidance space is caused, and the overall thickness increases.

The battery <NUM> is disposed on a side that is of the screen chip <NUM> and that is away from the screen, that is, the battery <NUM> is disposed below the screen chip <NUM>. To fasten the battery <NUM>, the housing of the electronic device forms the battery compartment <NUM>. For example, the battery compartment <NUM> may be formed in the second frame <NUM>, and the battery <NUM> is fastened in the battery compartment <NUM>. An opening direction of the battery compartment <NUM> faces a side that is away from the screen, so that the battery <NUM> and the screen chip <NUM> are separated from each other by the bottom of the battery compartment <NUM>.

The bottom of the battery compartment <NUM> is used as the middle frame <NUM> of the electronic device, and the middle frame <NUM> may be disposed in parallel with the display. The screen chip <NUM>, the screen outlet line <NUM>, and the flat cable <NUM> are disposed above the middle frame <NUM> (the side that is close to the display), and the battery <NUM> is disposed below the middle frame <NUM> (the side that is away from the display). The middle frame <NUM> is not only used to separate components in the electronic device, but also used to improve stability of the housing of the electronic device. When the user uses the electronic device, and a finger touches the display and presses the display, the screen chip <NUM>, the screen outlet line <NUM>, and the flat cable <NUM> move downward, and the three components are all located above the battery <NUM>. If the three components move downward, the three components will be in contact with the middle frame <NUM>, so that the middle frame <NUM> moves downward and is in contact with the battery <NUM>, causing the battery <NUM> to wear out. Therefore, the battery <NUM> is separated from the three components by using the middle frame <NUM>, to prevent the three components from continuously moving downward and being in contact with the battery <NUM>, so as to protect the battery <NUM>.

When components are arranged inside the electronic device, to ensure safety of the components, in addition to necessary contact for data transmission, other components without data transmission are not in direct contact, but a specific safety gap needs to be reserved. For example, a safety gap needs to be reserved between the middle frame <NUM> and the large surface (equivalent to the position of the gasket <NUM>) of the screen outlet line <NUM>, a safety gap needs to be reserved between the middle frame <NUM> and the flat cable <NUM>, and a safety gap needs to be reserved between the middle frame <NUM> and the screen chip <NUM>. In some embodiments, the safety gap to be reserved between the middle frame <NUM> and the large surface of the screen outlet line <NUM> or the flat cable <NUM> may be about <NUM>.

A thickness of the screen chip <NUM> is about <NUM>-<NUM>. The screen chip <NUM> forms a protruding structure relative to the large surface (equivalent to the position of the gasket <NUM>) of the screen outlet line <NUM>, that is, a thickness of the protruding structure is about <NUM>-<NUM>. When the user presses the display, the screen chip <NUM> moves downward and touches the middle frame <NUM>, and the screen chip <NUM> is made of a glass material, and is fragile after being hit, causing the screen chip <NUM> to wear out. Therefore, to protect the screen chip <NUM> from wearing out, a specific avoidance space needs to be reserved between the screen chip <NUM> and the middle frame. In some embodiments, while ensuring an avoidance effect, a distance of at least about <NUM> needs to be reserved for the avoidance space, that is, an avoidance distance of the screen chip <NUM> is at least about <NUM>.

It can be learned that, to avoid the protruding screen chip <NUM>, the middle frame <NUM> (that is, the bottom of the battery compartment <NUM>) needs to be moved down toward the back of the device as a whole, which causes the overall thickness of the electronic device to increase. To ensure the overall thickness of the electronic device and avoidance of the screen chip <NUM>, while ensuring a requirement for the gap between the middle frame <NUM> and the screen outlet line <NUM>, a relative position between the middle frame <NUM> and the screen chip <NUM> locally sinks, so that the middle frame <NUM> presents a locally sunk groove, where the groove is used to accommodate the screen chip <NUM>, and a depth of the groove is less than the thickness of the middle frame <NUM>. During avoidance, the protruding structure formed by the screen chip <NUM> relative to the large surface of the screen outlet line is located in the groove, and a distance between the screen chip <NUM> and the bottom of the groove is greater than the avoidance distance of the screen chip <NUM>.

Because the position of the screen chip <NUM> is close to the position of the flat cable <NUM>, and both the screen chip <NUM> and the flat cable <NUM> are laminated to the large surface, the groove formed on the middle frame <NUM> may also implement avoidance of the flat cable <NUM>. The groove on the middle frame <NUM> may avoid both the screen chip <NUM> and the flat cable <NUM>, but the protruding heights of the protruding structures that are formed by the screen chip <NUM> and the flat cable <NUM> relative to the screen outlet line <NUM> are different. Therefore, the structure of the groove may be in an irregular form, provided that avoidance of the screen chip <NUM> and the flat cable <NUM> may be implemented.

Based on a reliability requirement of the electronic device, a gap between the screen chip <NUM> and the middle frame <NUM> needs to be greater than a gap between the large surface (equivalent to the position of the gasket <NUM>) of the screen outlet line <NUM> and the middle frame <NUM>, so that a depth of the groove disposed on the middle frame <NUM> increases. Based on the avoidance solution shown in <FIG>, to avoid the screen chip <NUM>, the groove is disposed in a local position corresponding to the screen chip <NUM> on the middle frame <NUM>, the middle frame <NUM> has a minimum thickness at a position at which the groove is disposed, and the minimum thickness is less than the overall thickness at which the groove is not disposed on the middle frame <NUM>. However, even if the groove is disposed on the middle frame <NUM>, original reliability of the middle frame <NUM> needs to be ensured. Therefore, an overall thickness of the middle frame <NUM> needs to be increased, so that a remaining thickness obtained after the groove is locally disposed on the middle frame <NUM> can still meet the reliability requirement.

For example, in the foregoing avoidance solution, the overall thickness H1 of the middle frame <NUM> needs to be higher than <NUM>, the depth of the groove formed on the middle frame <NUM> through local sinking needs to be at least greater than <NUM>, and the minimum thickness of the position that is of the middle frame <NUM> and at which the groove is disposed needs to be at least <NUM>.

To further reduce the overall thickness of the electronic device, in the electronic device provided in another embodiment of this application, internal components of the electronic device are improved. That is, as shown in <FIG>, a hole is provided at a position that is at the bottom (that is, the middle frame <NUM>) of the battery compartment <NUM> and that is opposite to the screen chip <NUM>, a middle frame hole <NUM> is formed on the middle frame <NUM>, the middle frame hole <NUM> is a through hole, and a depth of the middle frame hole <NUM> is equal to the thickness of the middle frame <NUM>. Avoiding the protruding screen chip <NUM> by using the middle frame hole <NUM> does not cause a thickness of the remaining position of the middle frame <NUM> to increase, thereby reducing the overall thickness. On a side close to the screen, a black structure (not marked in the figure) between the large surface of the screen outlet line <NUM> and the middle frame <NUM> is an adhesive, and the adhesive is used to stick the screen outlet line and the middle frame <NUM> together for cushioning and waterproofing.

In some embodiments, the electronic device may be a device with a foldable screen, a tablet computer, or the like. The solution provided in this embodiment of this application may be applicable to a case in which the screen chip becomes a bottleneck of the overall thickness due to a battery disposed below the screen chip or another reason.

<FIG> is a partial sectional view of a cross section A-A when a middle frame hole is provided in a battery compartment according to an embodiment of this application. Referring to <FIG>, in the electronic device, to enable the middle frame <NUM> to avoid a protruding screen chip <NUM>, a position corresponding to the screen chip <NUM> on the middle frame <NUM> is hollowed out to form a middle frame hole <NUM>. In this case, the position of the middle frame <NUM> relative to the screen chip <NUM> has no thickness. A relative position between the middle frame <NUM> and the large surface of the screen outlet line <NUM> is set based on a minimum safety gap. When a distance between the middle frame <NUM> and the large surface meets a requirement for a minimum safety gap, the protruding screen chip <NUM> is embedded in the middle frame hole <NUM>. In this case, the entire screen chip <NUM> is in the middle frame hole <NUM>, and the screen chip <NUM> is accommodated by using a space of the middle frame hole <NUM>; a protruding structure formed by the screen chip <NUM> relative to the large surface of the screen outlet line is located in the middle frame hole <NUM>, and a protruding height of the protruding structure is less than a thickness of the middle frame hole <NUM>; and a distance between the screen chip <NUM> and the battery <NUM> is greater than an avoidance distance of the screen chip <NUM>.

In this case, even if the user presses the display to drive the screen chip <NUM> to move downward, the screen chip <NUM> is not in contact with the middle frame <NUM>, thereby preventing the screen chip <NUM> from wearing out. In addition, at a position in which the bottom of the battery compartment <NUM> overlaps the screen chip <NUM>, a wall thickness of the middle frame <NUM> is cut off, and the screen chip <NUM> does not need to be avoided in the manner shown in <FIG>, thereby further reducing a thickness of the middle frame, and making full use of an internal space of the electronic device.

In this embodiment of this application, to reduce the overall thickness, the overall thickness of the middle frame <NUM> of the electronic device needs to be as thin as possible while ensuring reliability of the electronic device. For example, the overall thickness of the middle frame <NUM> should be set to at least <NUM>. According to the electronic device provided in this embodiment, the protruding screen chip <NUM> is avoided by providing the middle frame hole <NUM> on the middle frame <NUM>, and the screen chip <NUM> does not need to be accommodated by using a groove. Therefore, the middle frame <NUM> does not need to relatively thick, that is, the thickness of the middle frame <NUM> adjacent to the screen or the thickness of the middle frame <NUM> in contact with the battery <NUM> (for example, the bottom of the battery compartment <NUM>) is set to a minimum wall thickness that can ensure reliability. For example, the thickness of the middle frame <NUM> adjacent to the screen may be set to <NUM>, or the thickness of the middle frame <NUM> in contact with the battery may be set to <NUM>.

In the avoidance solution shown in <FIG>, the overall thickness H1 of the middle frame <NUM> is greater than <NUM>; while in the solution provided in this embodiment of this application shown in <FIG>, the overall thickness H2 of the middle frame <NUM> may be set to a minimum wall thickness of <NUM>. Therefore, it can be learned from the comparison that the thickness of the middle frame <NUM> shown in <FIG> in this embodiment of this application is less than the thickness of the middle frame <NUM> shown in <FIG>. Therefore, the overall thickness of the electronic device can be further reduced by reducing the thickness of the middle frame <NUM>.

In some embodiments, a size of the middle frame hole <NUM> needs to fit a size of the screen chip <NUM>. From a perspective of reliability, the size of the middle frame hole <NUM> should not be too large. From a perspective of avoiding the screen chip <NUM>, the size of the middle frame hole <NUM> should not be too small.

<FIG> is a rear perspective view when a middle frame hole is provided in a battery compartment according to an embodiment of this application; and <FIG> is a rear perspective view when a screen chip is accommodated by a middle frame hole according to an embodiment of this application. Referring to <FIG>, because the screen chip <NUM> is of an elongated structure in a length direction of the device, to ensure that the middle frame hole <NUM> provided on the middle frame <NUM> can easily accommodate the screen chip <NUM>, the middle frame hole <NUM> may also be of an elongated structure in the length direction of the device, such as a rectangular structure. In another embodiment, the middle frame hole <NUM> may alternatively be in another shape, such as a rounded rectangular shape, an oval shape, or the like.

Referring to <FIG>, when the screen chip <NUM> is accommodated by the middle frame hole <NUM>, the screen chip <NUM> may be embedded in the middle frame hole <NUM> because the middle frame hole <NUM> corresponds to a position of the screen chip <NUM> relative to the middle frame <NUM>.

To ensure that space of the middle frame hole <NUM> can accommodate the screen chip <NUM> and that reliability of the middle frame hole <NUM> is not affected, a size of the middle frame hole <NUM> is slightly larger than a size of the screen chip <NUM>. For example, the middle frame hole <NUM> is offset from the screen chip <NUM> by a specific distance, and the offset distance may be set to about <NUM>. For example, the offset distance is greater than <NUM>. From a perspective of the overall offset size, a length of the middle frame hole <NUM> is greater than a length of the screen chip <NUM> by about <NUM>, and a width of the middle frame hole <NUM> is greater than a width of the screen chip <NUM> by about <NUM>.

Referring to <FIG> again, because the extension end of the flat cable <NUM> is laminated to the large surface (equivalent to the position of the gasket <NUM>) of the screen outlet line <NUM>, the extension end of the flat cable <NUM> is also higher than the large surface to form a protruding structure. The thickness of the extension end of the flat cable <NUM> is less than or equal to the thickness of the screen chip <NUM> (that is, a protruding height relative to the large surface of a screen outlet line), so as to prevent a larger avoidance space from being generated at the middle frame <NUM>, thereby avoiding a greater overall thickness.

In this case, the middle frame hole <NUM> needs to avoid the extension end of the flat cable <NUM> while avoiding the screen chip <NUM>. Therefore, the extension end of the flat cable <NUM> is located in the middle frame hole <NUM>, and the size of the middle frame hole <NUM> is greater than a total size that is enclosed by the screen chip <NUM> and the extension end of the flat cable <NUM>, that is, the size of the middle frame hole <NUM> is greater than an outer size of an overlapping part between the screen chip <NUM> + the extension end of the flat cable and the large surface of the screen outlet line <NUM>. In a width direction of the electronic device, a start position (a) on one side of the middle frame hole <NUM> may be opposite to a start position at which the extension end is generated by the flat cable <NUM>, and another end position (b) on the other side of the middle frame hole <NUM> may be a position corresponding to a minimum distance required when the middle frame hole <NUM> is offset from the screen chip <NUM>.

According to the electronic device provided in this embodiment of this application, because of a relative position relationship between and structural characteristics of the screen chip <NUM> and the screen outlet line <NUM>, the screen chip <NUM> forms a protruding structure relative to the large surface of the screen outlet line <NUM>. While it is ensured that the middle frame <NUM> and the large surface meet a requirement for a minimum safety gap, to avoid contact between the middle frame <NUM> and the screen chip <NUM>, the middle frame <NUM> needs to avoid the screen chip <NUM>. In an avoidance manner in this embodiment of this application, the middle frame hole <NUM> is disposed at a position of the middle frame <NUM> relative to the screen chip <NUM>, and the middle frame hole <NUM> accommodates the screen chip <NUM>, so as to prevent the screen chip <NUM> from moving downward and being in contact with the middle frame <NUM> to cause damage because the user presses the display. In addition, when the screen chip <NUM> is avoided by the middle frame hole <NUM>, only a minimum wall thickness that meets a reliability requirement needs to be set. It can be learned that, in this avoidance manner, the internal space of the electronic device can be fully used, and the wall thickness of the middle frame <NUM> can be reduced while the screen chip <NUM> is avoided, thereby further reducing the overall thickness of the electronic device.

In some embodiments, to avoid the screen chip <NUM>, the middle frame hole <NUM> is disposed in a hollow-out manner at a relative position at the bottom (the middle frame <NUM>) of the battery compartment <NUM>. In this case, the screen chip <NUM> is not separated from the battery <NUM> by the middle frame <NUM>. In this case, if the user presses the display hard, the screen chip <NUM> sinks due to applied force. Because the position of the screen chip <NUM> is no longer blocked by the middle frame <NUM>, the screen chip <NUM> may sink excessively and be in contact with the battery <NUM>.

When the screen chip <NUM> is in contact with the battery <NUM>, the screen chip <NUM> may be damaged. In addition, if the screen chip <NUM> is broken, debris generated by the screen chip <NUM> may pierce the battery <NUM>, which affects use of the battery <NUM>. In addition, the middle frame hole <NUM> provided on the middle frame <NUM> may reduce reliability of the middle frame <NUM>. Therefore, from a perspective of avoiding significant deformation of and damage to the screen chip <NUM> and protecting the battery <NUM>, a reinforcement member <NUM> is disposed at the position of the middle frame hole <NUM>, the reinforcement member <NUM> is located between the screen chip <NUM> and the battery <NUM>, and the reinforcement member <NUM> is fastened around the middle frame hole. The reinforcement member <NUM> is used for supporting and positioning, so as to improve reliability of the middle frame <NUM> and avoid significant deformation of the screen chip <NUM> due to applied force. The reinforcement member <NUM> prevents the screen chip <NUM> from continuously sinking, to avoid damage caused by contact between the screen chip <NUM> and the battery <NUM>, and prevent the battery <NUM> from being damaged by the screen chip <NUM>, so as to avoid a risk.

<FIG> is a schematic diagram of a structure when a reinforcement member is disposed at a position of a middle frame hole according to an embodiment of this application; and <FIG> is a sectional view of a reinforcement member according to an embodiment of this application. Referring to <FIG>, on the basis of the solution for reducing the overall thickness of the electronic device provided in the foregoing embodiment, the reinforcement member <NUM> is disposed at the position of the middle frame hole <NUM>, and the reinforcement member <NUM> includes a bottom edge <NUM>, a skirt edge <NUM>, and a middle edge <NUM>. The bottom edge <NUM> is of a solid structure, and both the skirt edge <NUM> and the middle edge <NUM> are of a hollow annular structure. For example, a material of the reinforcement member <NUM> may be a steel material, so as to ensure reliability.

The skirt edge <NUM> surrounds the bottom edge <NUM> by using the middle edge <NUM>. A plane on which the bottom edge <NUM> is located and a plane on which the skirt edge <NUM> is located are parallel but not overlapped. That is, after being connected by using the middle edge <NUM>, the plane on which the bottom edge <NUM> is located and the plane on which the skirt edge <NUM> is located are spaced by a specific distance in a parallel direction, so that a cross section of the reinforcement member <NUM> is of a groove structure, where the groove structure is used to accommodate the screen chip <NUM>, and a depth of the groove structure is greater than an avoidance distance of the screen chip <NUM>.

The middle edge <NUM> may be separately connected to the bottom edge <NUM> and the skirt edge <NUM> in a vertical state. In this case, the planes on which two adjacent edges of the reinforcement member <NUM> are located are perpendicular to each other, and a size of the bottom of a groove formed by the reinforcement member <NUM> is the same as a size of an opening. The middle edge <NUM> may alternatively be connected to both the bottom edge <NUM> and the skirt edge <NUM> in an inclined state. In this case, the planes on which two adjacent edges of the reinforcement member <NUM> are located are not perpendicular to each other, and a size from the bottom of a groove formed by the reinforcement member <NUM> to an opening gradually increases, as shown in <FIG>.

During mounting of the reinforcement member <NUM>, the reinforcement member <NUM> is mounted in the middle frame hole <NUM> in a concave state with the bottom edge <NUM> at the bottom and the skirt edge <NUM> at the top, so that the skirt edge <NUM> is fastened to the middle frame <NUM> around the middle frame hole <NUM>, and the skirt edge <NUM> is located between the middle frame <NUM> and the large surface of the screen outlet line <NUM>. To avoid the screen chip <NUM> while improving reliability of the middle frame <NUM>, the groove formed by the reinforcement member <NUM> accommodates the screen chip <NUM>. As shown in <FIG>, the skirt edge <NUM> of the reinforcement member <NUM> is higher than the bottom edge <NUM>, the bottom edge <NUM> is close to the battery <NUM>, and the skirt edge <NUM> is close to the position of the large surface of the screen outlet line <NUM> (equivalent to the position of the gasket <NUM>).

The bottom edge <NUM> of the reinforcement member <NUM> is located on a side that is of the middle frame hole <NUM> and that is away from the screen chip <NUM>, that is, the side that is close to the battery <NUM>, and the distance between the bottom edge <NUM> and the screen chip <NUM> is greater than the avoidance distance of the screen chip <NUM>, that is, a depth of the groove formed by the reinforcement member <NUM> is greater than the avoidance distance of the screen chip <NUM>. Therefore, the reinforcement member <NUM> is fastened to the middle frame <NUM>, so that reliability of the middle frame <NUM> can be improved, and the screen chip <NUM> can be avoided.

The screen chip <NUM> is separated from the battery <NUM> by using the bottom edge <NUM> of the reinforcement member <NUM>. If the screen chip <NUM> significantly deforms when the user presses the display, the bottom edge <NUM> of the reinforcement member <NUM> prevents the screen chip <NUM> from continuously sinking, so as to avoid contact with the battery <NUM>. Even if the screen chip <NUM> is damaged because of contact with the bottom edge <NUM>, the reinforcement member <NUM> may hold fragments, to prevent the fragments from being in contact with the battery <NUM>, thereby protecting the battery <NUM>.

<FIG> is a rear perspective view when a reinforcement member is disposed at a position of a middle frame hole according to an embodiment of this application. Referring to <FIG>, a middle frame hole <NUM> is disposed at a position that is corresponding to the screen chip <NUM> and that is at the bottom (a middle frame <NUM>) of the battery compartment <NUM>, and the reinforcement member <NUM> is disposed at the position of the middle frame hole <NUM>. From a perspective of the rear perspective view, the middle frame hole <NUM> passes through the bottom edge <NUM> of the reinforcement member <NUM>.

The dashed-line box in the left structure shown in <FIG> is a boundary of the reinforcement member <NUM>, that is, a boundary position of the skirt edge <NUM>. A complete structure obtained after the reinforcement member <NUM> is taken out from the electronic device is shown by a right structure shown in <FIG>. The reinforcement member <NUM> is a rounded rectangular structure with a protruding center, and a position of the protruding center is corresponding to a protruding structure of the screen chip <NUM>, so as to implement an effect of accommodating the screen chip <NUM> by a protruding part of the reinforcement member <NUM>.

An overall thickness of the reinforcement member <NUM> is less than a wall thickness of the middle frame <NUM>, that is, a vertical distance from the bottom edge <NUM> to the skirt edge <NUM> is less than the wall thickness of the middle frame <NUM>, which is equivalent to that a vertical height of the middle edge <NUM> is less than the wall thickness of the middle frame <NUM>. A distance between the bottom edge <NUM> and the battery <NUM> may be greater than or equal to a distance between the battery <NUM> and a side that is of the middle frame <NUM> and that is close to the battery <NUM>, so that when the reinforcement member <NUM> is fastened on the middle frame <NUM>, the middle frame hole <NUM> passes through the bottom edge <NUM>, and the bottom of the middle frame <NUM> is not exposed, where the bottom of the middle frame <NUM> is the side that is close to the battery <NUM>. In this case, the bottom edge <NUM> is separated from the bottom of the middle frame <NUM> by a specific distance, which can prevent the bottom edge <NUM> from being in contact with the battery <NUM>. For example, the distance between the bottom edge <NUM> and the bottom of the middle frame <NUM> may be set to <NUM>-<NUM>.

In some embodiments, the skirt edge <NUM> is fastened on the middle frame <NUM>, and the skirt edge <NUM> is located between the middle frame <NUM> and the large surface (equivalent to the position of the gasket <NUM>). A minimum safety gap is reserved between the middle frame <NUM> and the large surface, and the reinforcement member <NUM> needs to have a specific thickness to ensure strength of the reinforcement member <NUM>, where the thickness is greater than the minimum safety gap. Therefore, to avoid that when the skirt edge <NUM> is fastened between the middle frame <NUM> and the large surface, because a gap between the middle frame <NUM> and the large surface needs to be increased, the overall thickness of the electronic device increases, a clamping slot <NUM> may be disposed at a position in which the skirt edge <NUM> is laminated to the middle frame <NUM>. The clamping slot <NUM> is used to fasten the skirt edge <NUM>, the clamping slot <NUM> is located around the middle frame hole <NUM> and is close to the large surface, and a depth of the clamping slot <NUM> is greater than a thickness of the skirt edge <NUM>.

<FIG> is a partially enlarged diagram when a clamping slot is disposed on the middle frame according to an embodiment of this application. Referring to <FIG>, the clamping slot <NUM> is disposed through sinking at the position that is of the middle frame <NUM> and that is close to the middle frame hole <NUM>. When the reinforcement member <NUM> is disposed, the skirt edge <NUM> is laminated to the clamping slot <NUM>, so as to fasten the reinforcement member <NUM>. For example, the skirt edge <NUM> may be laminated to the clamping slot <NUM> on the middle frame <NUM> through glue dispensing or spot welding or by using an adhesive, or the like, so as to fasten the reinforcement member <NUM> to the edge of the middle frame hole <NUM>, so that the reinforcement member <NUM> is fastened to the middle frame <NUM> as a whole.

To avoid that when the skirt edge <NUM> of the reinforcement member <NUM> is laminated to the clamping slot <NUM>, a top of the skirt edge <NUM> is exposed beyond a top of the middle frame <NUM>, where the top of the middle frame <NUM> is a side close to the large surface, consequently, a safety gap between the middle frame <NUM> and the large surface increases. If the safety gap between the middle frame <NUM> and the large surface increases, the overall thickness of the electronic device increases. Therefore, in this embodiment of this application, a depth H of the clamping slot <NUM> is set to be greater than a sum of a thickness of the reinforcement member <NUM> and a thickness of the glue dispensing (or spot welding or adhesive) layer, so that the top of the skirt edge <NUM> is lower than the top of the middle frame <NUM>, so as to ensure that a minimum safety gap is reserved between the middle frame <NUM> and the large surface, thereby reducing the overall thickness of the electronic device.

For example, a thickness of the glue dispensing (or spot welding or adhesive) layer between the skirt edge <NUM> and the clamping slot <NUM> is about <NUM>, and the thickness of the skirt edge <NUM> is about <NUM>. Therefore, the depth H of the clamping slot <NUM> is greater than <NUM>. A depth tolerance of the clamping slot <NUM> may be set to <NUM>, and therefore the depth H of the clamping slot <NUM> may be <NUM>. A purpose of setting the depth tolerance of the clamping slot <NUM> is to ensure that the height of the skirt edge <NUM> is lower than the height of the middle frame <NUM> by <NUM> when the skirt edge <NUM> is fully accommodated by the clamping slot <NUM> on the middle frame <NUM>.

A width of the clamping slot <NUM> disposed on the middle frame <NUM> may match a width of the skirt edge <NUM>, provided that the width of the clamping slot <NUM> can fully accommodate the skirt edge <NUM>, so as to ensure stability of the skirt edge <NUM>. For example, if the width of the skirt edge <NUM> is about <NUM>-<NUM>, the width of the clamping slot <NUM> may also be set to <NUM>-<NUM>.

According to the electronic device provided in this embodiment of this application, to reduce the overall thickness of the electronic device, the middle frame hole <NUM> is disposed at the position of the middle frame <NUM> relative to the screen chip <NUM>, the middle frame hole <NUM> accommodates the screen chip <NUM>, and the middle frame <NUM> has a minimum wall thickness. However, in this case, the screen chip <NUM> is not separated from the battery <NUM> by the middle frame <NUM>, and the screen chip <NUM> will excessively sink after being stressed and be in contact with the battery <NUM>. Therefore, the reinforcement member <NUM> is disposed at a position of the middle frame hole <NUM>, and the reinforcement member <NUM> is used for supporting and positioning, so as to improve reliability of the middle frame <NUM> and prevent the screen chip <NUM> from continuously sinking, thereby avoiding damage caused by contact between the screen chip <NUM> and the battery <NUM> and protecting the battery <NUM>. In addition, the clamping slot <NUM> is disposed at a contact position between the middle frame <NUM> and the reinforcement member <NUM>, and the skirt edge <NUM> of the reinforcement member <NUM> is accommodated by using the clamping slot <NUM>, so as to avoid that the top of the skirt edge <NUM> is exposed beyond the top of the middle frame <NUM>. Therefore, the safety gap between the middle frame <NUM> and the large surface of the screen outlet line <NUM> (equivalent to the position of the gasket <NUM>) increases, so as to ensure that a minimum safety gap is reserved between the middle frame <NUM> and the large surface of the screen outlet line <NUM>, thereby reducing the overall thickness of the electronic device.

<FIG> is a rear perspective view when a reinforcement member is disposed in an electronic device according to an embodiment of this application; and <FIG> is a partial sectional view of a cross section B-B in <FIG> according to an embodiment of this application. In some embodiments, referring to <FIG>, because the extension end of the flat cable <NUM> is in contact with the large surface of the screen outlet line <NUM>, a contact position between the extension end of the flat cable <NUM> and the large surface of the screen outlet line <NUM> is a contact area <NUM>. If the reinforcement member <NUM> is disposed at the position of the middle frame hole <NUM> in the electronic device, the contact position between the reinforcement member <NUM> and the middle frame <NUM> passes through the contact area <NUM> that is formed by the extension end of the cable <NUM> and the large surface. However, in the contact area <NUM>, the flat cable <NUM> is higher than the large surface by a height of one layer of the flat cable <NUM>, and when the reinforcement member <NUM> passes through the contact area <NUM>, the flat cable <NUM> is also higher than the contact area <NUM> by a thickness of one layer of the flat cable <NUM>. In this case, a height of a position at which the reinforcement member <NUM> passes through the contact area <NUM> is higher than a height of a position at which the reinforcement member <NUM> does not pass through the contact area <NUM> by a thickness of one layer of the flat cable <NUM>, and the height herein refers to a height relative to the large surface. To match the extra thickness of the position at which the reinforcement member <NUM> passes through the contact area, the accommodating area inside the electronic device is increased in a thickness direction (that is, a direction from the display to the rear housing), thereby affecting the overall thickness of the electronic device.

With reference to <FIG>, when the screen chip <NUM> protruding relative to the screen outlet line <NUM> is accommodated by using the reinforcement member <NUM>, a protruding portion of the reinforcement member <NUM> faces the back of the electronic device (facing the battery), and an opening portion of the reinforcement member <NUM> faces the front of the electronic device (facing the display). When the reinforcement member <NUM> is mounted at the position of the middle frame hole <NUM>, a part of the skirt edge <NUM> of the reinforcement member <NUM> passes through the contact area <NUM> that is formed by the extension end of the flat cable <NUM> and the large surface of the screen outlet line <NUM>. Therefore, the increased height (the thickness of the flat cable <NUM>) of the reinforcement member <NUM> when the reinforcement member passes through the contact area <NUM> may be removed by changing the structural form of the reinforcement member <NUM>. For example, if the height of the flat cable <NUM> is about <NUM>-<NUM>, the increased height that is of the reinforcement member <NUM> when the reinforcement member passes through the contact area <NUM> and that needs to be removed is also about <NUM>-<NUM>.

In some embodiments, a part that is of the reinforcement member <NUM> and that is above the contact area <NUM> is cut off, that is, a part that is of the skirt edge <NUM> and that passes through the contact area <NUM> is directly cut off, so as to form the reinforcement member <NUM> with the notched skirt edge <NUM>; and the remaining part of the skirt edge <NUM> is fastened to the middle frame <NUM>, so as to prevent the overall thickness of the electronic device from being increased due to a local thickness of the reinforcement member <NUM>. The thickness of the skirt edge <NUM> is usually <NUM>. If an area that is of the contact area <NUM> and that is adjacent to the reinforcement member <NUM> cannot be accommodated after a part of the skirt edge <NUM> is cut off, a part of the middle edge <NUM> may be further cut off, that is, a part that is of the middle edge <NUM> and that is adjacent to the skirt edge may be cut off.

<FIG> is a schematic diagram of a structure of a reinforcement member with a notched skirt edge viewed from a protruding side of a bottom edge according to an embodiment of this application; and <FIG> is a schematic diagram of a structure of a reinforcement member with a notched skirt edge viewed from a concave side of a bottom edge according to an embodiment of this application. With reference to <FIG>, it can be learned that when the reinforcement member <NUM> passes through the contact area <NUM> that is formed by the extension end of the flat cable <NUM> and the large surface of the screen outlet line <NUM>, the protruding part of the reinforcement member <NUM> faces the back of the device (that is, faces the battery), and the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the reinforcement member <NUM> are in contact with the contact area <NUM>. Therefore, to avoid increasing the thickness of the contact position, the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the reinforcement member <NUM> are cut off, or the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the reinforcement member <NUM> and a part that is of the middle edge <NUM> and that is adjacent to the skirt edge are cut off, so as to form a first notch <NUM> and a second notch <NUM>, as shown in <FIG>. The state of the reinforcement member <NUM> with the notched skirt edge that is shown in <FIG> is a protruding state, that is, the bottom edge <NUM> is higher than the skirt edge <NUM>.

With reference to <FIG>, it can be learned that when the reinforcement member <NUM> with the notched skirt edge is disposed, in a concave structure, at the position of the middle frame hole <NUM>, a state of the reinforcement member <NUM> with the notched skirt edge is that the bottom edge <NUM> is a concave state, that is, the bottom edge <NUM> is lower than the skirt edge <NUM>, as shown in <FIG>.

<FIG> is a perspective view of a structure of a reinforcement member with a notched skirt edge disposed in a contact area according to an embodiment of this application; and <FIG> is an effect diagram of a structure of a reinforcement member with a notched skirt edge disposed in a contact area according to an embodiment of this application. Referring to <FIG>, a contact area <NUM> (a white dashed line frame) is formed by the flat cable <NUM> and the screen outlet line <NUM>. When the reinforcement member <NUM> is disposed at a position of the middle frame hole <NUM> so that the protruding screen chip <NUM> is accommodated by the reinforcement member <NUM>, both the upper and lower left corners of the reinforcement member <NUM> pass through the contact area <NUM>. In this case, the reinforcement member <NUM> presents a protruding state.

To avoid increasing the height of the reinforcement member <NUM> passing through the contact area <NUM>, which increases the overall thickness, the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the contact area <NUM> may be cut off, that is, a height formed by the contact area <NUM> is accommodated by using the formed first notch <NUM> and second notch <NUM>. Referring to <FIG>, a height of one end of the contact area <NUM> is accommodated by the first notch <NUM> of the reinforcement member <NUM>, and a height of the other end of the contact area <NUM> is accommodated by the second notch <NUM> of the reinforcement member <NUM>. The two notched parts of the skirt edge <NUM> are no longer fastened to the middle frame <NUM>, and are in a suspended state, and the remaining part of the skirt edge <NUM> is fastened to the middle frame <NUM>.

At the positions of the first notch <NUM> and the second notch <NUM>, the reinforcement member <NUM> is not in contact with the contact area <NUM>. Therefore, at the positions, the reinforcement member <NUM> does not have a thickness higher than one layer of the flat cable <NUM>, and therefore the overall thickness of the electronic device is not increased.

In some embodiments, the start point and the end point of the first notch <NUM> or the second notch <NUM> in the reinforcement member <NUM> are determined to ensure that the reinforcement member <NUM> is not in contact with the contact area <NUM>. For example, a distance between the start point (the end point) and the contact area <NUM> may be set to about <NUM>.

In some embodiments, to offset the increased height (the thickness of the flat cable <NUM>) when the reinforcement member <NUM> passes through the contact area <NUM>, so as to avoid increasing the overall thickness of the electronic device, changing the structural form of the reinforcement member <NUM> may also be performing local stamping processing on the skirt edge <NUM> that is of the reinforcement member <NUM> and that passes through the contact area <NUM>, so as to form a reinforcement steel sheet with a skirt edge of unequal heights. No component is designed to be disposed between the locally stamped skirt edge and the middle frame <NUM>, and glue dispensing processing is not performed at this position, which can save glue dispensing space of the position and avoid increasing the height of the position.

<FIG> is a schematic diagram of a structure of a reinforcement member with a skirt edge of unequal heights viewed from a protruding side of a bottom edge according to an embodiment of this application; and <FIG> is a schematic diagram of a structure of a reinforcement member with a skirt edge of unequal heights viewed from a concave side of a bottom edge according to an embodiment of this application. With reference to <FIG>, it can be learned that when the reinforcement member <NUM> passes through a contact area <NUM> that is formed by the extension end of the flat cable <NUM> and the large surface of the screen outlet line <NUM>, a protruding part of the reinforcement member <NUM> faces the back of the device, and the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the reinforcement member <NUM> are in contact with the contact area <NUM>. Therefore, to avoid increasing the height of the contact position, local stamping processing is performed on the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the reinforcement member <NUM>, so as to form a first stamping area <NUM> and a second stamping area <NUM>, as shown in <FIG>. A state of the reinforcement member <NUM> with a skirt edge of unequal heights shown in <FIG> is a protruding state, that is, the bottom edge <NUM> is higher than the skirt edge <NUM>.

As shown in a cross section C in <FIG>, in the structure of the reinforcement member with a skirt edge of unequal heights, the first stamping area <NUM> and the second stamping area <NUM> are closer to the bottom edge <NUM> than the skirt edge <NUM>, that is, a vertical distance between the first stamping area <NUM> and the bottom edge <NUM> and a vertical distance between the second stamping area <NUM> and the bottom edge are both less than a vertical distance between the skirt edge <NUM> and the bottom edge <NUM>.

With reference to <FIG>, it can be learned that when the reinforcement member <NUM> with a skirt edge of unequal heights is disposed, in a concave structure, at the position of the middle frame hole <NUM>, a state of the reinforcement member <NUM> with a skirt edge of unequal heights is a concave state, that is, the bottom edge <NUM> is lower than the skirt edge <NUM>, as shown in <FIG>.

<FIG> is a side view of a reinforcement member with a skirt edge of unequal heights shown in <FIG> according to an embodiment of this application. Referring to <FIG>, when the structural form of the reinforcement member <NUM> is changed through local stamping, a part that is of the skirt edge <NUM> of the reinforcement member <NUM> and that may be easily in contact with the contact area <NUM> is locally raised to form a stamping area. Because the parts that are of the skirt edge of the reinforcement member <NUM> and that pass through the contact area <NUM> are located at the upper and lower left corners (that the reinforcement member is in a protruding state is used as an example), local stamping processing may be separately performed on the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the reinforcement member <NUM>, so that the parts that are of the skirt edge <NUM> and that are at the two positions are locally raised, so as to form the first stamping area <NUM> and the second stamping area <NUM>.

The first stamping area <NUM> and the second stamping area <NUM> protrude a specific height relative to the skirt edge <NUM> on which local stamping processing is not performed, and a protruding direction of the first stamping area <NUM> and the second stamping area <NUM> is the same as a protruding direction of the bottom edge <NUM> relative to the skirt edge <NUM>.

Because the first stamping area <NUM> and the second stamping area <NUM> protrude relative to the skirt edge <NUM> on which local stamping processing is not performed, at this position, a height of the skirt edge <NUM> of the reinforcement member <NUM> is a sum of a height of the stamping area and a height of the skirt edge <NUM> on which local stamping processing is not performed, so that a height of the stamping area is greater than the height of the skirt edge <NUM> on which local stamping processing is not performed, so as to form the reinforcement member <NUM> with a skirt edge of unequal heights.

In an example in which the reinforcement member <NUM> shown in <FIG> is in a concave state, the first stamping area <NUM> and the second stamping area <NUM> sink by a specific height relative to the skirt edge <NUM> on which local stamping processing is not performed, and a sinking direction is the same as a sinking direction of the bottom edge <NUM> relative to the skirt edge <NUM>.

<FIG> is a perspective view of a structure of a reinforcement member with a skirt edge of unequal heights disposed in a contact area according to an embodiment of this application; and <FIG> is an effect diagram of a structure of a reinforcement member with a skirt edge of unequal heights disposed in a contact area according to an embodiment of this application. Referring to <FIG>, a contact area <NUM> (a white dashed line frame) is formed by the flat cable <NUM> and the screen outlet line <NUM>. When the reinforcement member <NUM> is disposed at a position of the middle frame hole <NUM> so that the protruding screen chip <NUM> is accommodated by the reinforcement member <NUM>, both the upper and lower left corners of the reinforcement member <NUM> pass through the contact area <NUM>. In this case, the reinforcement member <NUM> presents a protruding state.

To avoid increasing the height of the part caused by the reinforcement member <NUM> passing through the contact area <NUM>, the parts that are of the skirt edge <NUM> and that are at the upper and lower left corners of the contact area are locally stamped, that is, a height formed by the contact area <NUM> is accommodated by using the formed first stamping area <NUM> and second stamping area <NUM>. Referring to <FIG>, a height of one end of the contact area <NUM> is accommodated by the first stamping area <NUM> of the reinforcement member <NUM>, and a height of the other end of the contact area <NUM> is accommodated by the second stamping area <NUM> of the reinforcement member <NUM>.

During mounting of the reinforcement member <NUM>, a contact between the skirt edge <NUM> and the large surface of the screen outlet line <NUM> and a contact between the skirt edge <NUM> and the flat cable <NUM> may be connected through glue dispensing (or spot welding or adhesive). However, because two stamping areas of the reinforcement member <NUM> with a skirt edge of unequal heights protrude relative to the remaining part of the skirt edge <NUM>, there is a distance between the first stamping area <NUM> and the contact area <NUM> and between the second stamping area <NUM> and the contact area <NUM>, and a vertical distance between the first stamping area <NUM> and the bottom edge <NUM> and a vertical distance between the second stamping area <NUM> and the bottom edge <NUM> are both less than a vertical distance between the skirt edge <NUM> and the bottom edge <NUM>, that is, the two stamping areas are in a suspended state, so that the two suspended stamping areas can accommodate a height formed by the contact area <NUM>. Therefore, when the two stamping areas pass through the contact area <NUM>, glue dispensing is no longer performed.

In some embodiments, the reinforcement member <NUM> performs stamping processing on a part of the skirt edge <NUM>, and the stamping areas (<NUM> and <NUM>) are raised integrally in a protruding direction of the bottom edge <NUM>, so that the stamping areas form a groove relative to the remaining part of the skirt edge <NUM>. Because the height of the contact area <NUM> is about <NUM>-<NUM>, the raised heights of the two stamping areas (<NUM> and <NUM>) are set to <NUM>-<NUM>, so that the depth of the groove formed by the stamping areas (<NUM> and <NUM>) relative to the remaining part of the skirt edge <NUM> is about <NUM>-<NUM>.

When the reinforcement member <NUM> with a skirt edge of unequal heights is fastened, because the thickness of the glue dispensing (or spot welding or adhesive) layer is about <NUM>, the thickness of the glue dispensing layer is less than or equal to the depth of the groove formed by the stamping areas (<NUM> and <NUM>) relative to the remaining part of the skirt edge <NUM>, glue dispensing may not be performed at a position in which the two stamping areas (<NUM> and <NUM>) pass through the contact area <NUM>, thereby saving glue dispensing space at the position, and avoiding increasing a height of the position. However, glue dispensing is only performed on the remaining part of the skirt edge <NUM>, so as to fasten the reinforcement member <NUM>. In this case, the two stamping areas (<NUM> and <NUM>) are suspended relative to the contact area <NUM>, and the height of the contact area <NUM> is accommodated by the groove formed by the two stamping areas (<NUM> and <NUM>), so that the overall height of the reinforcement member <NUM> does not increase when the reinforcement member <NUM> is fastened, and the overall thickness of the electronic device is not increased.

At the positions of the first stamping area <NUM> and the second stamping area <NUM>, the reinforcement member <NUM> is not in contact with the contact area <NUM>. Therefore, at the positions, the reinforcement member <NUM> does not have a thickness higher than one layer of the flat cable <NUM>, and therefore the overall thickness of the electronic device is not increased.

In some embodiments, the start point and the end point of the first stamping area <NUM> and the second stamping area <NUM> in the reinforcement member <NUM> are determined to ensure that the reinforcement member <NUM> is not in contact with the contact area <NUM>. For example, a distance between the start point (the end point) and the contact area <NUM> may be set to about <NUM>.

According to the electronic device provided in this embodiment of this application, the reinforcement member <NUM> is disposed at the position of the middle frame hole <NUM>, so as to improve reliability of the middle frame <NUM> and prevent the screen chip <NUM> from continuously sinking. To reduce the overall thickness of the electronic device, in terms of the structural form, the reinforcement member <NUM> may be a reinforcement member with a notched skirt edge or a reinforcement member with a skirt edge of unequal heights. Specifically, the first gap <NUM> and the second gap <NUM> that are formed by the reinforcement member <NUM> with a notched skirt edge accommodate the height of the contact area <NUM> that is formed by the extension end of the flat cable <NUM> and the large surface of the screen outlet line <NUM>, or the first stamping area <NUM> and the second stamping area <NUM> that are formed by the reinforcement member <NUM> with a skirt edge of unequal heights accommodate the height of the contact area <NUM> that is formed by the extension end of the flat cable <NUM> and the large surface of the screen outlet line <NUM>. In the foregoing two manners, an increase in a local height may be avoided when the skirt edge <NUM> passes through the contact area <NUM>, thereby avoiding increasing the overall thickness of the electronic device.

It should be noted that the structural form of the reinforcement member <NUM> is not limited to the form provided in the foregoing embodiment; and the reinforcement member <NUM> may be in another structural form, provided that a local height is not increased when the reinforcement member <NUM> passes through the contact area <NUM>, which is not specifically limited herein.

In some embodiments, one screen chip may be disposed in the electronic device provided in the foregoing embodiment. However, to improve efficiency of turning on the display, alternatively, two screen chips may be disposed in the electronic device. For example, the two screen chips may be sequentially arranged in the length direction of the device.

<FIG> is a front perspective view when two screen chips are disposed in an electronic device according to an embodiment of this application. Referring to <FIG>, two screen chips are disposed in the electronic device. The first screen chip 110a and the second screen chip 110b are sequentially arranged in a length direction of the device, and are sequentially laminated to the large surface of the screen outlet line <NUM>. Both the first screen chip 110a and the second screen chip 110b are located above the battery <NUM>. A distance between the two screen chips is set to maximize utilization of the internal space of the device, so as to make full use of the internal space of the device while ensuring data transmission and avoiding increasing the overall thickness of the device.

In this case, the large surface (equivalent to the position of the gasket <NUM>) of the screen outlet line <NUM> includes two protruding screen chips (110a and 110b). Therefore, in addition to avoiding the protruding structure of the screen chip to reduce the overall thickness of the electronic device, the two screen chips (110a and 110b) need to be avoided. For information about shapes, sizes, structures, and positions of the two screen chips (110a and 110b), refer to description about the case in which one screen chip is disposed in the foregoing embodiment.

In some embodiments, to reduce the overall thickness of the electronic device, in the electronic device provided in this embodiment of this application, internal components of the electronic device are improved, that is, a hole is provided at a position that is at the bottom (a middle frame <NUM>) of the battery compartment <NUM> and that is opposite to two screen chips (110a and 110b), two middle frame holes (132a and 132b) are formed on the middle frame <NUM>, and the protruding screen chips (110a and 110b) are avoided by the middle frame holes (132a and 132b), which does not increase a thickness of the remaining part of the middle frame <NUM>, thereby reducing the overall thickness.

<FIG> is a rear perspective view when two middle frame holes are provided in a battery compartment according to an embodiment of this application. Referring to <FIG>, a first middle frame hole 132a and a second middle frame hole 132b are disposed at the bottom (the middle frame <NUM>) of the battery compartment <NUM> in a length direction of the electronic device. Positions of the first middle frame hole 132a and the second middle frame hole 132b are opposite to positions of the first screen chip 110a and the second screen chip 110b that are laminated to the large surface. That is, the position of the first middle frame hole 132a is opposite to the position of the first screen chip 110a, and the position of the second middle frame hole 132b is opposite to the position of the second screen chip 110b. A distance between the two middle frame holes (132a and 132b) matches a distance between the two screen chips (110a and 110b).

For information about shapes, sizes, and structures of the two middle frame holes (132a and 132b), refer to description about the case in which one middle frame hole <NUM> is disposed in the battery compartment in the foregoing embodiment.

<FIG> is a rear perspective view when two screen chips are accommodated by two middle frame holes according to an embodiment of this application. Referring to <FIG>, when two screen chips (110a and 110b) are accommodated by two middle frame holes (132a and 132b), the first screen chip 110a is accommodated by the first middle frame hole 132a, so that the first screen chip 110a can be fully embedded in the first middle frame hole 132a; and the second screen chip 110b is accommodated by the second middle frame hole 132b, so that the second screen chip 110b can be fully embedded in the second middle frame hole 132b.

In some embodiments, because the extension end of the flat cable <NUM> is laminated to the large surface of the screen outlet line <NUM>, the extension end of the flat cable <NUM> is also higher than the large surface to form a protruding structure. A thickness of the extension end of the flat cable <NUM> needs to be less than the thickness of the screen chip <NUM>, so as to avoid a larger avoidance space at the middle frame <NUM>, thereby avoiding increasing the overall thickness. In addition to avoiding the first screen chip 110a by using the first middle frame hole 132a and avoiding the second screen chip 110b by using the second middle frame hole 132b, the extension end of the flat cable <NUM> also needs to be avoided. Therefore, sizes of the two middle frame holes (132a and 132b) are larger than a total size of the corresponding screen chips (110a and 110b) and the flat cable <NUM>. For details about the implementation, reference may be made to related description about the case in which one middle frame hole <NUM> is provided in the battery compartment in the foregoing embodiment, and details are not described herein again.

In the electronic device provided in this embodiment of this application, two screen chips (110a and 110b) are disposed in the electronic device, and the two screen chips (110a and 110b) form protruding structures relative to the large surface of the screen outlet line <NUM>. While it is ensured that the middle frame <NUM> and the large surface meet a requirement for a minimum safety gap, to avoid contact between the middle frame <NUM> and the two screen chips (110a and 110b), the middle frame <NUM> needs to avoid the two screen chips (110a and 110b). In the avoidance manner in this embodiment of this application, two middle frame holes (132a and 132b) are disposed at positions of the middle frame <NUM> relative to two screen chips (110a and 110b), the first middle frame hole 132a accommodates the first screen chip 110a, and the second middle frame hole 132b accommodates the second screen chip 110b, so that the two screen chips (110a and 110b) are prevented from moving downward to be in contact with the middle frame <NUM> when a user presses the display, thereby avoiding damage. In addition, in the manner of avoiding the screen chips by middle frame holes, the wall thickness of the middle frame <NUM> is not increased, and only a minimum wall thickness that meets a reliability requirement needs to be set. It can be learned that, in this avoidance manner, the internal space of the electronic device can be fully used, and the wall thickness of the middle frame <NUM> can be reduced while the two screen chips (110a and 110b) are avoided, thereby further reducing the overall thickness of the electronic device.

In some embodiments, to avoid two screen chips (110a and 110b), two middle frame holes (132a and 132b) are disposed in a hollow-out manner at relative positions at the bottom (middle frame <NUM>) of the battery compartment <NUM>. In this case, the two screen chips (110a and 110b) are not separated from the battery <NUM> by the middle frame <NUM>, and the two middle frame holes (132a and 132b) are provided on the middle frame <NUM>, which reduces reliability of the middle frame <NUM>. Therefore, from a perspective of avoiding significant deformation of the two screen chips (110a and 110b) and protecting the battery <NUM>, corresponding reinforcement members (160a and 160b) may be separately disposed at positions of the two middle frame holes (132a and 132b). The two reinforcement members (160a and 160b) are used for supporting and positioning, so as to improve reliability of the middle frame <NUM>, and avoid significant deformation of the two screen chips (110a and 110b) due to applied force. The two reinforcement members (160a and 160b) prevent the two screen chips (110a and 110b) from continuously sinking, to avoid damage caused by contact between the two screen chips (110a and 110b) and the battery <NUM>, and prevent the battery <NUM> from being damaged by the two screen chips (110a and 110b), so as to avoid a risk.

<FIG> is a rear perspective view when two reinforcement members are disposed at positions of two middle frame holes according to an embodiment of this application. Referring to <FIG>, on the basis of the solution for reducing the overall thickness of the electronic device provided in the foregoing embodiment, a first reinforcement member 160a is disposed at the position of the first middle frame hole 132a, and a second reinforcement member 160b is disposed at the position of the second middle frame hole 132b. The two reinforcement members (160a and 160b) are of the same structure, and both include a bottom edge, a skirt edge, and a middle edge. For information about structures, materials, mounting manners, and lamination manners of the two reinforcement members (160a and 160b), refer to related description about the case in which one reinforcement member <NUM> is disposed in the middle frame hole <NUM> in the foregoing embodiment.

The first dashed-line box in <FIG> is a boundary of the skirt edge of the first reinforcement member 160a, and the second dashed-line box is a boundary of the skirt edge of the second reinforcement member 160b. In a state shown in <FIG>, the two reinforcement members (160a and 160b) are disposed in a protruding state, and corresponding screen chips (110a and 110b) are respectively disposed below the two reinforcement members (160a and 160b).

Skirt edges of the two reinforcement members (160a and 160b) are located between corresponding screen chips and the middle frame <NUM>, and corresponding middle frame holes pass through the bottom edge structures of the two reinforcement members (160a and 160b). The skirt edge of the first reinforcement member 160a is located between the first screen chip 110a and the middle frame <NUM>, and is configured to prevent the first screen chip 110a from being in contact with the battery <NUM> when the first screen chip 110a sinks due to applied force. The first middle frame hole 132a passes through the bottom edge structure of the first reinforcement member 160a, so as to implement an effect of accommodating the first screen chip 110a by the protruding part of the first reinforcement member 160a. The skirt edge of the second reinforcement member 160b is located between the second screen chip 110b and the middle frame <NUM>, and is configured to prevent the second screen chip 110b from being in contact with the battery <NUM> when the second screen chip 110b sinks due to applied force. The second middle frame hole 132b passes through the bottom edge structure of the second reinforcement member 160b, to implement an effect of accommodating the second screen chip 110b by the protruding part of the second reinforcement member 160b.

A complete structure obtained after the two reinforcement members (160a and 160b) are taken out from the electronic device is shown in <FIG>. A structural form of the two reinforcement members (160a and 160b) may be a reinforcement member with a notched skirt edge shown in <FIG>, or a reinforcement member with a skirt edge of unequal heights shown in <FIG> and <FIG>. For an implementation solution for avoiding the contact area <NUM> by a structural form of two reinforcement members (160a and 160b), refer to description about avoiding the contact area <NUM> by the reinforcement member <NUM> in the foregoing embodiment.

The two screen chips (110a and 110b) are separated from the battery <NUM> by using bottom edges of the two reinforcement members (160a and 160b). If the user presses the display to cause significant deformation of the two screen chips (110a and 110b), the bottom edges of the two reinforcement members (160a and 160b) may prevent corresponding screen chips (110a and 110b) from continuously sinking, so as to avoid contact with the battery <NUM>. Even if the two screen chips (110a and 110b) are damaged because of contact with the bottom edges of the corresponding reinforcement members, the two reinforcement members (160a and 160b) may hold fragments, to prevent the fragments from being in contact with the battery <NUM>, so as to protect the battery <NUM>.

According to the electronic device provided in this embodiment of this application, to reduce the overall thickness of the electronic device, two middle frame holes (132a and 132b) are disposed at the positions of the middle frame <NUM> relative to the two screen chips (110a and 110b), the two middle frame holes (132a and 132b) accommodate corresponding screen chips (110a and 110b), and the middle frame <NUM> has a minimum wall thickness. In addition, corresponding reinforcement members (160a and 160b) are disposed at the positions of the two middle frame holes (132a and 132b), and the reinforcement members (160a and 160b) are used for supporting and positioning, so as to improve reliability of the middle frame <NUM>, prevent the corresponding screen chips (110a and 110b) from continuously sinking, thereby avoiding damage caused by contact between the two screen chips (110a and 110b) and the battery <NUM> and protecting the battery <NUM>. It can be learned that the two middle frame holes (132a and 132b) and the two reinforcement members (160a and 160b) are disposed on the middle frame <NUM>, so as to improve reliability of the middle frame <NUM> and avoid the two protruding screen chips (110a and 110b), thereby reducing an overall thickness of an electronic device.

In some embodiments, when two screen chips (110a and 110b) are disposed in the electronic device, one middle frame hole <NUM> may alternatively be provided on the middle frame <NUM>, and the middle frame hole <NUM> can accommodate the two screen chips. In this case, structural features such as a size and a shape of the only middle frame hole need to match the structural features such as a size and a shape of an area enclosed by the two screen chips, that is, a size of the middle frame hole <NUM> is greater than a size that is enclosed by the first screen chip 110a and the second screen chip 110b. For the solution for accommodating two screen chips by one middle frame hole, refer to description in the foregoing embodiments.

It can be learned from the foregoing technical solutions that, in the electronic device provided in the embodiments of this application, to resolve a problem that the overall thickness of the electronic device increases due to a local protrusion inside a device, while it is ensured that the middle frame <NUM> and the large surface of the screen outlet line <NUM> meet a requirement for a minimum safety gap, a position corresponding to the screen chip <NUM> on the middle frame <NUM> is hollowed out to form the middle frame hole <NUM>, so as to avoid contact between the middle frame <NUM> and the screen chip <NUM>, so that the screen chip <NUM> is accommodated in the space of the wall thickness of the middle frame <NUM>. In this manner of avoiding the screen chip <NUM>, only a minimum wall thickness that meets a reliability requirement needs to be set. In addition, the reinforcement member <NUM> is disposed at a position of the middle frame hole <NUM>, and the reinforcement member <NUM> is used for supporting and positioning, so as to improve reliability of the middle frame <NUM> and prevent the screen chip <NUM> from continuously sinking. Furthermore, the clamping slot <NUM> on the middle frame <NUM> accommodates the skirt edge <NUM> of the reinforcement member <NUM>, to avoid that the top of the skirt edge <NUM> is exposed beyond the top of the middle frame <NUM>, so as to ensure that a minimum safety gap is reserved between the middle frame <NUM> and the large surface of the screen outlet line <NUM>, thereby reducing the overall thickness of the electronic device. A structural form of the reinforcement member <NUM> may be a reinforcement member with a notched skirt edge or a reinforcement member with a skirt edge of unequal heights, to avoid a height of the contact area <NUM> formed by the flat cable <NUM> and the screen outlet line <NUM>, so as to avoid increasing the overall thickness of the electronic device. It can be learned that the internal space of the electronic device can be fully used, so that the wall thickness of the middle frame <NUM> is reduced, and the height formed by contact between adjacent components is avoided while the screen chip <NUM> is avoided, thereby further reducing the overall thickness of the electronic device.

Claim 1:
A foldable screen electronic device, comprising a housing, wherein a display is disposed on the housing, a cavity is formed by the housing and the display, and a middle frame (<NUM>), a screen chip (<NUM>), a screen outlet line (<NUM>), and a battery (<NUM>) are disposed in the cavity, wherein a screen outlet line is a circuit board formed based on a flexible encapsulation process;
a middle frame hole (<NUM>) is provided on the middle frame (<NUM>), and the middle frame hole (<NUM>) penetrates the middle frame (<NUM>);
the battery (<NUM>) is disposed on a side that is of the middle frame (<NUM>) and that is away from the display;
the screen outlet line (<NUM>) is disposed on a side that is of the middle frame (<NUM>) and that is the side close to the display, the screen outlet line (<NUM>) is connected to one end of the display, and a large surface of the screen outlet line (<NUM>) is located between the display and the middle frame (<NUM>); and
the screen chip (<NUM>) is disposed on the large surface of the screen outlet line (<NUM>), and is located between the middle frame (<NUM>) and the large surface of the screen outlet line (<NUM>), wherein the large surface of the screen outlet line (<NUM>) is part of the screen outlet line (<NUM>) that is bent along a direction from the display to the back of the device, located between the display and the middle frame (<NUM>);
a protruding structure formed by the screen chip (<NUM>) relative to the large surface of the screen outlet line (<NUM>) is located in the middle frame hole (<NUM>), and a protruding height of the protruding structure is less than a depth of the middle frame hole (<NUM>);
characterized by further comprising a reinforcement member (<NUM>) disposed between the screen chip and the battery;
wherein the reinforcement member (<NUM>) is fastened around the middle frame hole, and is configured to prevent the screen chip from being in contact with the battery when the screen chip sinks due to applied force;
and wherein the reinforcement member (<NUM>) comprises a bottom edge (<NUM>), a skirt edge (<NUM>), and a middle edge (<NUM>).