Patent Description:
A camera module is usually arranged inside an electronic device. A camera decorative member is arranged around the camera module. The camera decorative member is fixedly connected to a rear cover of the electronic device to decorate the camera module. During use, the electronic device is often exposed in an environment with water. For example, a user places the electronic device on a sink when washing hands. Water is likely to splash on the electronic device and enters the electronic device through space between the camera decorative member and the rear cover, resulting in a short circuit in the electronic device. Therefore, how to implement waterproofing has become an urgent problem to be resolved for an electronic device.

<CIT> relates to a decoration component for a mobile terminal, comprising a first decoration enclosure having a first through-hole and a receiving groove surrounding the first through-hole; a second decoration enclosure being received in the receiving groove and protruding beyond the receiving groove in an axial direction of the first through-hole, and having a second through-hole corresponding to the first through-hole; and a cover being coupled at a side of the second decoration enclosure facing away from the first decoration enclosure, the cover covering the second through-hole.

<CIT> relates to a biometric module, applied to a mobile terminal comprising a transparent cover plate, wherein the transparent cover plate has an opening for accommodating the biometric module; wherein the biometric module has a thickness smaller than or equal to a thickness of the transparent cover plate, and the biometric module comprises a flexible circuit board, a biological detection component installed on a first surface of the flexible circuit board, a stiffening plate fixed on a second surface of the flexible circuit board, and a decorative ring arranged around the biological detection component; wherein the decorative ring has a first supporting surface, and the biological detection component is fixed on the first supporting surface; and the decorative ring further has a second supporting surface for being fixed with an edge region of the opening.

Embodiments of this application provide an electronic device and an electronic device assembly method. The electronic device has good sealing performance and can implement waterproofing, to resolve the problem that water in an external environment enters the electronic device through space between a rear cover and a camera decorative member and causes a short circuit in the electronic device.

In a first aspect, the embodiments of this application provide an electronic device, including: a middle frame, a rear cover, and a camera decorative member, where.

In the electronic device provided in the embodiments of this application, a through hole is provided in a rear cover. An inner wall of the through hole protrudes to form an annular flange. A camera decorative member is designed to include an inner decorative member and an outer decorative member. The outer decorative member is arranged on a side of the rear cover facing away from a middle frame. The inner decorative member is arranged between the outer decorative member and the middle frame and is connected to the outer decorative member. The outer decorative member is bonded to the annular flange by a bonding layer. The bonding layer can block a gap between the outer decorative member and the annular flange to implement sealing and waterproofing. In this way, the yield of an air tightness test of the rear cover can be further improved.

In a possible embodiment, the inner decorative member includes a first structural member and an extension edge, the extension edge is connected to a surrounding edge of the first structural member, and a thickness of the first structural member is greater than a thickness of the extension edge; and the first structural member protrudes into an inner hole defined by the annular flange and is connected to the outer decorative member, and the extension edge is opposite to a surface of the annular flange facing the middle frame.

In a possible embodiment, a first gap is provided between the first structural member and an inner wall of the annular flange.

In a possible embodiment, a second gap is provided between the extension edge and the surface of the annular flange facing the middle frame.

In a possible embodiment, the first gap is greater than or equal to <NUM> and less than or equal to <NUM>.

In a possible embodiment, the outer decorative member includes a second structural member and an appearance member, and the appearance member is connected to a surrounding edge of the second structural member and is arranged protruding toward a side facing away from the middle frame.

In a possible embodiment, the electronic device further includes a lens, where the lens is connected to the second structural member, and the appearance member is arranged surrounding the lens.

In a possible embodiment, the outer decorative member is in clearance fit with a hole wall of the through hole.

In a possible embodiment, the inner decorative member is connected to the side of the outer decorative member facing the middle frame by an adhesive layer.

In a possible embodiment, the inner decorative member is fixedly connected to the outer decorative member by a screw.

In a possible embodiment, a plurality of screws are provided, and the plurality of screws are evenly distributed around a center line of the through hole.

In a possible embodiment, three screws are provided, and the three screws are distributed in a regular triangle shape.

In a second aspect, the embodiments of this application provide an electronic device assembly method, including:.

In a possible embodiment, the fastening the inner decorative member to the outer decorative member includes:
providing a plurality of screws, and connecting the inner decorative member to the outer decorative member by the plurality of screws, where the plurality of screws are evenly distributed around a center line of the through hole.

In a possible embodiment, before the providing a plurality of screws, the method further includes: connecting the inner decorative member to the outer decorative member by an adhesive layer.

In a possible embodiment, after the fastening the inner decorative member to the outer decorative member, the method further includes: providing a lens, where the lens is mounted on a second structural member of the outer decorative member, and an appearance member of the outer decorative member is arranged around the lens.

The following specifically describes the structure of an electronic device and a method for assembling same provided in embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are a part rather than all of the embodiments of this application.

<FIG> is a schematic structural diagram of an electronic device <NUM> from a first perspective. The embodiments of this application provide an electronic device <NUM>. The electronic device <NUM> is not limited to a mobile phone shown in <FIG>, and may be a tablet computer, a notebook computer, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a handheld computer, a walkie-talkie, a netbook, a POS machine, a personal digital assistant (personal digital assistant, PDA), a wearable device, a virtual reality device, a wireless USB flash drive, a Bluetooth speaker, a Bluetooth headset, an in-vehicle device, or another electronic device <NUM> having a camera. For ease of understanding, the following embodiments are described by using an example in which the electronic device <NUM> is a mobile phone. It should be noted that, in the accompanying drawings of the embodiments of this application, directions of an X-axis, a Y-axis, and a Z-axis respectively represent a width direction, a length direction, and a thickness direction of the electronic device <NUM>.

<FIG> schematically shows the exploded structure of the electronic device <NUM>. Referring to <FIG>, the electronic device <NUM> includes a middle frame <NUM>, a display screen <NUM>, and a rear cover <NUM>. The middle frame <NUM> includes a middle plate <NUM> and a frame <NUM>. The frame <NUM> is arranged on a surrounding edge of the middle plate <NUM>. The display screen <NUM> and the rear cover <NUM> are respectively arranged on two sides of the middle plate <NUM> in a thickness direction of the middle plate <NUM>, and are opposite to the middle plate <NUM>. The middle frame <NUM> is used for carrying the display screen <NUM>. When a user uses the electronic device <NUM>, the display screen <NUM> faces the user, and the rear cover <NUM> faces away from the user.

The middle frame <NUM> may be made of metal, ceramic, glass, or another material. The rear cover <NUM> may be made of metal, ceramic, glass, or another material. The middle frame <NUM> and the rear cover <NUM> may be separately formed and fixed by welding, clamping, bonding, or another manner. Alternatively, the middle frame <NUM> and the rear cover <NUM> may be integrally formed. The rear cover <NUM> made of a material such as metal, ceramic or glass can meet the requirements of gloss, fashion, and aesthetics of the appearance of the electronic device <NUM>. In addition, compared with the rear cover <NUM> made of glass, the rear cover <NUM> made of ceramic further has advantages of high hardness, fast heat dissipation, and easy processing.

<FIG> is a schematic structural diagram of an electronic device <NUM> from a second perspective. Referring to <FIG> and <FIG>, a camera module <NUM> is further provided inside the electronic device <NUM>, a through hole <NUM> is provided in the rear cover <NUM>, and a part of the camera module <NUM> extends into the through hole <NUM>, so that the camera module <NUM> is exposed to an external environment of the rear cover <NUM> and can be configured to acquire an image of the external world, thereby achieving shooting.

The through hole <NUM> may be provided at any position in the rear cover <NUM>. For example, the through hole <NUM> may be provided at an upper central position in the rear cover <NUM> shown in <FIG>, or may be, for example, provided at an upper right corner in the rear cover <NUM> or a position near the upper left corner. It is designed that the shape and size of the through hole <NUM> can match the shape and size of the camera module <NUM>. For example, the through hole <NUM> may be a circular hole, a rectangular hole, or an elongated hole.

The camera module <NUM> may be configured protruding relative to an outer surface of the rear cover <NUM> facing away from the middle frame <NUM>, so that a thickness of the electronic device <NUM> at a position corresponding to the camera module <NUM> is greater than a thickness at another position, so that space on the electronic device <NUM> for accommodating the camera module <NUM> is increased while a thickness requirement of the entire device is satisfied.

The electronic device <NUM> further includes a circuit board <NUM>. The circuit board <NUM> is mounted on a side of the middle plate <NUM> facing the rear cover <NUM>. The camera module <NUM> specifically includes a lens <NUM> and an optical device <NUM>. The optical device <NUM> is fixedly connected to the circuit board <NUM>, and the lens <NUM> is fixedly connected to the rear cover <NUM> and is exposed to the external environment of the rear cover <NUM>, so that external light passes through the lens <NUM> to enter the optical device <NUM> or light emitted by the optical device <NUM> passes through lens <NUM> to reach the external environment to implement a shooting function.

The shape of the lens <NUM> is not specifically limited in this embodiment. For example, the shape may be a circle shown in <FIG>, or a rectangle, a rhombus, or another irregular shape. A light transmitting hole <NUM> corresponding to the optical device <NUM> is provided in the lens <NUM>. External light enters the camera module <NUM> through the light transmitting hole <NUM>, to allow the camera module <NUM> to implement a video recording function. The arrangement manner and area of a plurality of light transmitting holes <NUM> in the lens <NUM> are limited by the position and size of the optical device <NUM> in the camera module <NUM>. The lens <NUM> may be made of transparent glass or plastic. An inner surface of the lens <NUM> may be covered with an opaque light shielding film <NUM> (referring to <FIG> below) through a process such as screen printing. The light shielding film <NUM> may be made of, for example, ink or mylar. The light transmitting hole <NUM> is formed in a region that is not covered by the light shielding film <NUM>.

Continuing to refer to <FIG>, a camera decorative member <NUM> is further provided inside the electronic device <NUM>. The camera decorative member <NUM> is disposed surrounding the camera module <NUM> to decorate the camera module <NUM>, thereby increasing the aesthetics of the entire electronic device <NUM>. <FIG> schematically shows the exploded structure of a rear cover <NUM> and a camera decorative member <NUM>. <FIG> schematically shows a structure in a direction A-A shown in <FIG>. Referring to <FIG> and <FIG>, and according to the claimed invention, the camera decorative member <NUM> specifically includes an outer decorative member <NUM> and an inner decorative member <NUM>. The outer decorative member <NUM> is arranged on an outer side of the rear cover <NUM> facing away from the middle frame <NUM>. The inner decorative member <NUM> is arranged between the outer decorative member <NUM> and the middle frame <NUM>. The inner decorative member <NUM> is fastened to a surface of the outer decorative member <NUM> facing the middle frame <NUM>. It may be seen that in this embodiment, the camera decorative member <NUM> is designed to mainly include the outer decorative member <NUM> and the inner decorative member <NUM>, and the inner decorative member <NUM> is arranged on an inner side the outer decorative member <NUM>, so that the inner decorative member <NUM> is not exposed to the external environment and the outer decorative member <NUM> is exposed to the external environment. Compared with that both the inner decorative member <NUM> and the outer decorative member <NUM> are exposed to the external environment, the overall visual effect of the electronic device <NUM> is more minimalist.

<FIG> schematically shows the structure of a rear cover <NUM> of an electronic device <NUM>. Specifically, as shown in <FIG>, a hole wall of the through hole <NUM> in the rear cover <NUM> protrudes toward a center line of the through hole <NUM> to form an annular flange <NUM>. The annular flange <NUM> does not block the through hole <NUM>, so that the camera module <NUM> can pass through the through hole <NUM> to ensure that the camera module <NUM> can be exposed to the external environment. It should be understood that, an inner wall of the annular flange <NUM> may define an inner hole. The inner hole can allow the camera module <NUM> to pass through. The shape and size of the annular flange <NUM> can adapt to the shape and size of the camera module <NUM>.

That the outer decorative member <NUM> is provided on an outer side of the rear cover <NUM> specifically means that the outer decorative member <NUM> is mounted on a side of the annular flange <NUM> facing away from the middle frame <NUM> and the outer decorative member <NUM> is connected to a surface of the annular flange <NUM> facing away from the middle frame <NUM>. For details, reference may be made to <FIG> and <FIG>. The annular flange <NUM> may be arranged close to an inner surface of the rear cover <NUM> facing the middle frame <NUM>, so that a surface of the annular flange <NUM> facing the middle frame <NUM> is coplanar with the inner surface of the rear cover <NUM>. Alternatively, in some implementations, it may be designed that a distance exists between the surface of the annular flange <NUM> facing the middle frame <NUM> and the inner surface of the rear cover <NUM> and it may be designed that a distance exists between the surface of the annular flange <NUM> facing away from the middle frame <NUM> and the outer surface of the rear cover <NUM>. That is, the annular flange <NUM> is arranged in the middle of the hole wall of the through hole <NUM>. In this way, a part of the outer decorative member <NUM> can be arranged in the through hole <NUM>. Compared with that the surface of the annular flange <NUM> facing away from the middle frame <NUM> is coplanar with the outer surface of the rear cover <NUM> and the outer decorative member <NUM> is completely arranged outside the through hole <NUM>, the outer decorative member <NUM> can be prevented from being excessively obtrusive to avoid affecting the overall visual effect of the electronic device <NUM>. Certainly, a part of the inner decorative member <NUM> is arranged in the through hole <NUM>, so that both the inner decorative member <NUM> and the outer decorative member <NUM> are embedded in the through hole <NUM>.

The outer decorative member <NUM> may be designed to be completely arranged in the through hole <NUM>. Alternatively, as shown in <FIG> and <FIG>, the outer decorative member <NUM> may have a part protruding from the through hole <NUM>, so that a part of the outer decorative member <NUM> is arranged protruding relative to the outer surface of the rear cover <NUM>. In the implementation in which both the camera module <NUM> and the outer decorative member <NUM> are arranged protruding from the outer surface of the rear cover <NUM>, the part of the outer decorative member <NUM> protruding from the through hole <NUM> may be designed to be equivalent to a part of the camera module <NUM> protruding to the through hole <NUM>, so that the surface of the outer decorative member <NUM> facing away from the rear cover <NUM> is flush with the surface of the camera module <NUM> facing away from the rear cover <NUM>. Alternatively, in a direction of the center line of the through hole <NUM>, the size of the part of the outer decorative member <NUM> protruding from the through hole <NUM> may be slightly larger than the size of the part of the camera module <NUM> protruding from the through hole <NUM>. In this way, the outer decorative member <NUM> can protect the camera module <NUM>. In a case that the electronic device <NUM> falls on the ground and the rear cover <NUM> faces the ground, the camera module <NUM> is kept from colliding with the ground under the protection of the outer decorative member <NUM>, which helps to protect the camera module <NUM> from damage.

Specifically, the outer decorative member <NUM> may be fastened to the surface of the annular flange <NUM> facing away from the middle frame <NUM> by a bonding layer <NUM>. In this way, the bonding layer <NUM> can connect the outer decorative member <NUM> and the rear cover <NUM> and can implement sealing. The bonding layer <NUM> can prevent dust and water in the external environment from entering the interior of the electronic device <NUM> from space between the outer decorative member <NUM> and the annular flange <NUM>, thereby preventing water from eroding the internal circuit of the electronic device <NUM> to protect the internal circuit from damage, so that waterproofing is implemented between the camera decorative member <NUM> and the rear cover <NUM>. The thickness of the bonding layer <NUM> is not limited. For example, the thickness of the bonding layer <NUM> may be greater than <NUM> and less than or equal to <NUM>.

The bonding layer <NUM> may be arranged on the surface of the annular flange <NUM> facing away from the middle frame <NUM>, or may be arranged on the surface of the outer decorative member <NUM> facing the middle frame <NUM>. Alternatively, in some embodiments, the bonding layer <NUM> may be provided on both the surface of the annular flange <NUM> facing away from the middle frame <NUM> and the surface of the outer decorative member <NUM> facing the middle frame <NUM>.

In the electronic device <NUM> provided in this embodiment of this application, a through hole <NUM> is provided in a rear cover <NUM>. An inner wall of the through hole <NUM> protrudes to form an annular flange <NUM>. A camera decorative member <NUM> is designed to include an inner decorative member <NUM> and an outer decorative member <NUM>. The outer decorative member <NUM> is arranged on a side of the rear cover <NUM> facing away from the middle frame <NUM>. The inner decorative member <NUM> is arranged between the outer decorative member <NUM> and the middle frame <NUM> and is connected to the outer decorative member <NUM>. The outer decorative member <NUM> is bonded to the annular flange <NUM> by a bonding layer <NUM>. The bonding layer <NUM> can block a gap between the outer decorative member <NUM> and the annular flange <NUM> to prevent water in the external environment from entering the electronic device <NUM> through the space between the outer decorative member <NUM> and the rear cover <NUM>, so that sealing and waterproofing are implemented, and the yield of an air tightness test of the rear cover <NUM> can be further effectively improved.

It should be further noted that, to make the electronic device <NUM> implement waterproofing, those skilled in the art often easily conceive of designing the camera decorative member <NUM> to include an annular assembly ring and a connecting plate. The annular assembly ring is formed protruding on the connecting plate. The annular assembly ring surrounds the camera module <NUM>. The connecting plate is bonded to the inner surface of the rear cover <NUM> by an adhesive. In this way, the adhesive between the connecting plate and the inner surface of the rear cover <NUM> can implement sealing, thereby implementing waterproofing. However, in a case that the electronic device <NUM> is dropped and the camera module <NUM> collides with the ground, the camera module <NUM> and the camera decorative member <NUM> suffer a huge impact force. The camera decorative member <NUM> moves toward the interior of the electronic device <NUM> under the action of the impact force. The adhesive is pulled and the connecting plate tends to fall off from the rear cover <NUM>. In this case, the adhesive cannot implement sealing, resulting in a loss of waterproof performance of the electronic device <NUM>, and the camera decorative member <NUM> is loose and is likely to fall into the interior of the electronic device <NUM>.

In this embodiment, the camera decorative member <NUM> is designed to include the inner decorative member <NUM> and the outer decorative member <NUM>. The outer decorative member <NUM> is arranged on an outer side of the rear cover <NUM>. The outer decorative member <NUM> and the outer surface of the rear cover <NUM> are bonded by the bonding layer <NUM>. The inner decorative member <NUM> is arranged on the side of the outer decorative member <NUM> facing the rear cover <NUM> and is connected to the outer decorative member <NUM>. In this way,.

in the process that the user uses the electronic device <NUM>, the electronic device <NUM> does not lose waterproof performance when the electronic device <NUM> falls on the ground because the user fails to hold the electronic device <NUM> tightly.

<FIG> is a schematic diagram of a scenario in which an electronic device falls on the ground and a camera decorative member <NUM> collides with the ground. Specifically, as shown in <FIG>, if the rear cover <NUM> faces the ground when the electronic device <NUM> falls, the outer decorative member <NUM> is located below the inner decorative member <NUM>. The electronic device <NUM> applies a force to the ground when the electronic device <NUM> collides with the ground. At this time, the electronic device <NUM> is subjected to a counterforce F, and the counterforce F acts on the outer decorative member <NUM>, so that the outer decorative member <NUM> tends to move toward the inner decorative member <NUM>. Correspondingly, the bonding layer <NUM> is pressed by the outer decorative member <NUM>, so that the outer decorative member <NUM> and the bonding layer <NUM> are more firmly bonded. If the display screen <NUM> faces the ground and collides with the ground when the electronic device <NUM> falls, the outer decorative member <NUM> is located above the inner decorative member <NUM>. In this case, although the outer decorative member <NUM> is not subjected to external pressure, the gravity of the outer decorative member <NUM> acts on the bonding layer <NUM>, making the bonding layer <NUM> compressed, so that the outer decorative member <NUM> and the bonding layer <NUM> are more firmly bonded. In addition, at the instant when the electronic device <NUM> comes into contact with the ground, the outer decorative member <NUM> tends to move toward the inner decorative member <NUM> under inertia, and the outer decorative member <NUM> further compresses the bonding layer <NUM>, making the bonding layer <NUM> more reliable.

It can be seen that if the electronic device <NUM> in this embodiment falls on the ground, regardless of whether the rear cover <NUM> or the display screen <NUM> collides with the ground, the outer decorative member <NUM> presses the bonding layer <NUM>. There is no risk that the adhesive between the outer decorative member <NUM> and the rear cover <NUM> falls off, and the bonding layer <NUM> can still implement sealing, so that after the electronic device <NUM> is dropped, waterproofing can still be implemented between the camera decorative member <NUM> and the rear cover <NUM>, to allow the dropped electronic device <NUM> to maintain the waterproof performance, thereby avoiding the problem that after use for a period of time, because the electronic device <NUM> has been dropped and loses waterproof performance, water tends to enter to cause a short circuit. In addition, a bonding effect between the outer decorative member <NUM> and the rear cover <NUM> is enhanced, and the inner decorative member <NUM> is connected to the outer decorative member <NUM>, so that the camera decorative member <NUM> and the rear cover <NUM> are still tightly bonded together, which helps to prevent the camera decorative member <NUM> from falling off from the rear cover <NUM>.

<FIG> schematically shows the structure of an inner decorative member <NUM>. <FIG> schematically shows the structure of an outer decorative member <NUM>. For example, as shown in <FIG> and <FIG>, the inner decorative member <NUM> may include a first structural member <NUM>, and the outer decorative member <NUM> may include a second structural member <NUM>. The second structural member <NUM> and the annular flange <NUM> are bonded by the bonding layer <NUM>. The first structural member <NUM> is firmly connected to the second structural member <NUM>. The first structural member <NUM> and the second structural member <NUM> are both plate-shaped as a whole. The material of the first structural member <NUM> and the second structural member <NUM> is not limited to aluminum or an aluminum alloy, and may be plastic. Plastic has the advantage of a light weight and, which helps to reduce the weight of the camera decorative member <NUM>. Based on this embodiment, the implementation in which a part of the inner decorative member <NUM> and a part of the outer decorative member <NUM> are arranged in the through hole <NUM> has the following possible cases:.

It may be configured that the inner decorative member <NUM> cannot pass through the through hole <NUM>. Specifically, as shown in <FIG> and <FIG>, the inner decorative member <NUM> may include an extension edge <NUM>. The extension edge <NUM> is connected to a surrounding edge of the first structural member <NUM>. When the inner decorative member <NUM> is connected to the outer decorative member <NUM>, the first structural member <NUM> is directly opposite to the through hole <NUM>. The extension edge <NUM> is opposite to a surface of the annular flange <NUM> facing the middle frame <NUM>, and then the annular flange <NUM> can block the extension edge <NUM>, so that the inner decorative member <NUM> cannot pass through the through hole <NUM>. In a case that the first structural member <NUM> extends into the inner hole (that is, the first case and the second case), a thickness of the first structural member <NUM> may be greater than a thickness of the extension edge <NUM>, so that a step is formed on the inner decorative member <NUM>, and the step can fit the annular flange <NUM>. Certainly, in a case that the first structural member <NUM> does not extend into the inner hole (that is, the third case), the thickness of the first structural member <NUM> may be equal to the thickness of the extension edge <NUM>.

Through the above arrangement, when the electronic device <NUM> falls on the ground, the camera decorative member <NUM> does not easily fall off from the rear cover <NUM> even if being subjected to a huge impact force, so that the mounting stability of the camera decorative member <NUM> is high. The principle that the camera decorative member <NUM> does not easily fall off is as follows: If the display screen <NUM> faces the ground when the electronic device <NUM> falls, correspondingly, the inner decorative member <NUM> is close to the ground, and the annular flange <NUM> can be used for supporting the outer decorative member <NUM>. Blocked by the annular flange <NUM>, the outer decorative member <NUM> cannot cross the annular flange <NUM> to move to the side of the rear cover <NUM> facing the middle frame <NUM>, and the camera decorative member <NUM> is kept from falling off from the through hole <NUM> and falling into the interior of the electronic device <NUM>. If the rear cover <NUM> faces the ground when the electronic device <NUM> falls, correspondingly, the outer decorative member <NUM> is close to the ground and can be used for supporting the inner decorative member <NUM>. Blocked by the annular flange <NUM>, the inner decorative member <NUM> cannot go over the annular flange <NUM> and move to the side of the rear cover <NUM> facing away from the middle frame <NUM>, and the camera decorative member <NUM> is kept from falling off from the through hole <NUM> and falling into the exterior of the electronic device <NUM>.

The inner decorative member <NUM> and the annular flange <NUM> may be designed to be in clearance fit. <FIG> is schematically a partial enlarged view at P in <FIG>. In some implementations, as shown in <FIG>, <FIG>, and <FIG>, when the inner decorative member <NUM> includes the first structural member <NUM> and the extension edge <NUM> and the first structural member <NUM> extends into the annular flange <NUM>, a first gap D1 is provided between the first structural member <NUM> and an inner wall of the annular flange <NUM>.

It should be understood that, to improve the connection reliability between the camera decorative member <NUM> and the rear cover <NUM>, those skilled in the art tend to easily conceive of designing the first structural member <NUM> to be in an interference fit with the annular flange <NUM>. However, in this design, when the first structural member <NUM> is mounted on the rear cover <NUM>, it is often necessary to use a mounting jig to squeeze the first structural member <NUM> into the annular flange <NUM>, resulting in low mounting efficiency. In this embodiment, the first structural member <NUM> is designed to be in clearance fit with the inner wall of the annular flange <NUM>. During the mounting of the camera decorative member <NUM>, when the inner decorative member <NUM> is connected to the outer decorative member <NUM>, there is no interference between the inner decorative member <NUM> and the annular flange <NUM>. The first structural member <NUM> can extend into the annular flange <NUM> without a mounting jig. The mounting operation is simple, which helps to improve the mounting efficiency and reduce the mounting cost.

The first gap D1 is not specifically limited in this embodiment. For example, the first gap D1 may be greater than <NUM> and less than <NUM>. For example, the first gap D1 may be <NUM>, <NUM>, <NUM>, <NUM>, or <NUM>. In this way, based on the clearance fit between the first structural member <NUM> and the annular flange <NUM> for easy mounting, the first gap D1 is further prevented from being excessively large, the size of the first structural member <NUM> is prevented from being excessively small, so that the inner decorative member <NUM> can surround the outside of the camera module <NUM>.

It may further be configured that a second gap D2 is provided between the extension edge <NUM> and the surface of the annular flange <NUM> facing the middle frame <NUM>. In other words, when the inner decorative member <NUM> is connected to the outer decorative member <NUM>, the extension edge <NUM> does not contact the surface of the annular flange <NUM> facing the middle frame <NUM>. In this design, the second gap D2 provides an assembly gap between the extension edge <NUM> and the annular flange <NUM> to avoid assembly interference, so that in a process of mounting the inner decorative member <NUM>, the inner decorative member <NUM> is kept from applying a pressure to the rear cover <NUM> in the process of connecting the first structural member <NUM> to the second structural member <NUM>. The second gap D2 is also not limited in this embodiment. For example, the second gap D2 may be equal to the first gap D1. That is, in the implementation in which the first gap D1 is greater than or equal to <NUM> and less than <NUM>, the second gap D2 may also be greater than or equal to <NUM> and less than <NUM>. Specifically, the second gap D2 may be <NUM>, <NUM>, <NUM>, <NUM>, or <NUM>.

In addition to the second structural member <NUM>, the outer decorative member <NUM> may further include an appearance member <NUM>. The appearance member <NUM> is connected to a surrounding edge of the second structural member <NUM>, and the appearance member <NUM> is arranged protruding toward a side facing away from the middle frame <NUM>. The lens <NUM> may be fastened to the second structural member <NUM>. The appearance member <NUM> surrounds the outside of the lens <NUM> of the camera module <NUM>. The lens <NUM> may be bonded to the second structural member <NUM> by a bonding agent. In this way, in this example, the appearance member <NUM> is designed to expose the appearance member <NUM> to the external environment of the rear cover <NUM> to decorate the lens <NUM>. An outer surface of the appearance member <NUM> can present a metallic color with texture, and the presented color can be implemented by processes such as spraying, electroplating, corrosion, or the like. In addition, the color of the appearance member <NUM> may be the same as the color of the lens <NUM>. Alternatively, in some examples, the color and pattern of the appearance member <NUM> may be the same as the color and pattern of the outer surface of the rear cover <NUM> respectively. In this way, the appearance member <NUM> can present the same visual effect as the lens <NUM> or the rear cover <NUM>, to prevent the appearance member <NUM> from being excessively obtrusive visually.

The appearance member <NUM> and the hole wall of the through hole <NUM> may be designed to be in clearance fit. That is, a third gap D3 is provided between the appearance member <NUM> and the through hole <NUM>. In this way, first, the third gap D3 provides an assembly gap between the outer decorative member <NUM> and the rear cover <NUM> to avoid assembly interference, and the outer decorative member <NUM> can be connected to the annular flange <NUM> without a mounting jig, so that the mounting efficiency is high. Second, the outer decorative member <NUM> is prevented from being squeezed to deform during the mounting. The third gap D3 is also not limited in this embodiment. For example, the third gap D3 may be greater than or equal to <NUM> and less than <NUM>. Specifically, the third gap D3 may be <NUM>, <NUM>, or <NUM>.

In the above embodiment, the fastening connection manner between the inner decorative member <NUM> and the outer decorative member <NUM> is not limited to an adhesive connection in this embodiment, and may be a screw connection. When the adhesive connection method is used, as shown in <FIG>, the inner decorative member <NUM> and the outer decorative member <NUM> are bonded by an adhesive layer <NUM>. The adhesive layer <NUM> may be provided on a surface of the inner decorative member <NUM> facing away from the middle frame <NUM> or may be provided on a surface of the outer decorative member <NUM> facing the middle frame <NUM>, or the adhesive layer <NUM> may be provided on both the surface of the inner decorative member <NUM> facing away from the middle frame <NUM> and the surface of the outer decorative member <NUM> facing the middle frame <NUM>. With reference to <FIG>, it should be noted that, when both the bonding layer <NUM> and the adhesive layer <NUM> are provided on the outer decorative member <NUM>, the bonding layer <NUM> and the adhesive layer <NUM> may be formed as a whole. Specifically, during the mounting, the outer decorative member <NUM> may be coated to form the bonding layer <NUM> and the adhesive layer <NUM> in one mounting process.

When the inner decorative member <NUM> is screwed to the outer decorative member <NUM>, specifically, a fixing hole <NUM> may be provided in the first structural member <NUM> of the inner decorative member <NUM>, and a threaded hole <NUM> may be provided in the second structural member <NUM> of the outer decorative member <NUM>. An axis of the threaded hole <NUM> is collinear with an axis of the fixing hole <NUM>, and a screw <NUM> passes through the fixing hole <NUM> to fit the threaded hole <NUM>, so that the inner decorative member <NUM> and the outer decorative member <NUM> are screwed together.

Certainly, in some implementations, the inner decorative member <NUM> and the outer decorative member <NUM> may be bonded together by the adhesive layer <NUM> and at the same time may be screwed together by the screw <NUM>, which helps to improve the reliability of a connection relationship between the inner decorative member <NUM> and the outer decorative member <NUM>. In addition, in the implementation in which the inner decorative member <NUM> and the outer decorative member <NUM> are connected by bonding and screwing, an avoidance hole <NUM> may be further provided in the adhesive layer <NUM>, and the avoidance hole <NUM> can expose both the fixing hole <NUM> and the threaded hole <NUM> instead of being covered by the adhesive layer <NUM>.

A plurality of screws <NUM> may be provided. That is, the outer decorative member <NUM> and the inner decorative member <NUM> are connected by the plurality of screws <NUM>. For example, the number of the screws <NUM> may be <NUM>, <NUM>, or <NUM>. The outer decorative member <NUM> and the inner decorative member <NUM> are connected more tightly by increasing the number of screws <NUM>. In some implementations, the plurality of screws <NUM> may be evenly distributed around a center line of the through hole <NUM>. In this way, it can be ensured that the camera decorative member <NUM> is evenly stressed, which helps to avoid a risk that a part of the outer decorative member <NUM> warps in a direction away from the rear cover <NUM> due to being not fastened and further prevent the bonding layer <NUM> from being pulled as the outer decorative member <NUM> warps, to minimize a risk that the bonding layer <NUM> is detached from the outer decorative member <NUM> or the rear cover <NUM>, so that good waterproof performance can be maintained between the rear cover <NUM> and the camera decorative member <NUM>.

It should be pointed out that, to avoid interference between the camera module <NUM> and the screw <NUM>, the optical device <NUM> of the camera module <NUM> is arranged based on that the screw <NUM> can be avoided. In other words, in this embodiment, an arrangement of a screw joint on the camera decorative member <NUM> is considered first, and then a mounting position of the camera module <NUM> is arranged, so that the camera decorative member <NUM> is evenly stressed. In this way, the stability of the camera decorative member <NUM> is high. Therefore, the camera module <NUM> can be stably fixed on the camera decorative member <NUM>.

<FIG> schematically shows engagement relationship between the camera decorative member <NUM> and the rear cover <NUM>. Specifically, referring to <FIG>, when three screws <NUM> are provided, the three screws <NUM> may be arranged in a regular triangle shape. In a feasible manner, an angle between a line connecting centers of any two screws <NUM> of the three screws <NUM> and a horizontal line may be an acute angle. That is, the regular triangle formed by the three screws <NUM> is not symmetrically provided with respect to a vertical symmetry plane of the electronic device <NUM>. The vertical symmetry plane is perpendicular to the display screen <NUM> and the ground. In this way, the camera decorative member <NUM> is evenly stressed, and any one of the three screws <NUM> is not arranged at a position right above or below a center of the through hole <NUM>, so that the optical device <NUM> of the camera module <NUM> can be arranged at a position directly above or below the center of the through hole <NUM>.

This embodiment of this application provides a method for assembling an electronic device <NUM>, which is applied in an assembly stage of the electronic device <NUM> described in Embodiment <NUM>, and is mainly used for mounting a camera decorative member <NUM> on a rear cover <NUM>.

<FIG> schematically shows a procedure of a method for assembling an electronic device <NUM>. Referring to <FIG>, the method for assembling the electronic device <NUM> mainly includes the following steps:.

In step S103, it is necessary to first mount the outer decorative member <NUM> on the rear cover <NUM>. <FIG> schematically shows an assembly process of an outer decorative member <NUM> and a rear cover <NUM>. Specifically, as shown in <FIG>, the outer decorative member <NUM> may be first moved to face the annular flange <NUM>, so that the outer decorative member <NUM> can be accurately mounted on the annular flange <NUM>.

In addition, the bonding layer <NUM> in step S103 needs to be pre-coated on the outer decorative member <NUM> or the annular flange <NUM>. For example, the bonding layer <NUM> is coated on the outer decorative member <NUM>. The bonding layer <NUM> may be coated on the outer decorative member <NUM> after the outer decorative member <NUM> is provided and before the outer decorative member <NUM> is arranged on the side of the rear cover <NUM> facing away from the middle frame <NUM>, so that the outer decorative member <NUM> arranged on the side of the rear cover <NUM> facing away from the middle frame <NUM> can be bonded to the annular flange <NUM>. Alternatively, the outer decorative member <NUM> may be coated with an adhesive to form the bonding layer <NUM> after the outer decorative member <NUM> is arranged on the side of the rear cover <NUM> facing away from the middle frame <NUM>. In a case that the bonding layer <NUM> is coated on the annular flange <NUM>, an operation of coating the bonding layer <NUM> only needs to be performed before the step of connecting the outer decorative member <NUM> to the annular flange <NUM> of the rear cover <NUM> by a bonding layer <NUM>, which is not limited in this embodiment.

The outer decorative member <NUM> is in clearance fit with a hole wall of the through hole <NUM>. Therefore, during the mounting, a part of the outer decorative member <NUM> may be extended into the through hole <NUM> without a mounting jig, thereby connecting the outer decorative member <NUM> to the annular flange <NUM>.

It should be further noted that, when the outer decorative member <NUM> is mounted on the rear cover <NUM>, the rear cover <NUM> may be disposed on a working bench jig <NUM> in a horizontal posture with an inner surface facing the ground and an outer surface facing away from the ground. The outer decorative member <NUM> moves from top to bottom into the through hole <NUM> and is connected to the rear cover <NUM> by the bonding layer <NUM>. The working bench jig <NUM> is used for supporting the rear cover <NUM>, to facilitate the mounting operation. The working bench jig <NUM> may be, for example, a table.

In this way, it is more convenient to mount the outer decorative member <NUM> from top to bottom than to mount the outer decorative member <NUM> from bottom to top. In addition, it may be understood that in the process of bonding the outer decorative member <NUM> to the rear cover <NUM>, pressure is often applied to the outer decorative member <NUM> to make the outer decorative member <NUM> and the rear cover <NUM> firmly bonded. However, the rear cover <NUM> is placed on the working bench jig <NUM>, the working bench jig <NUM> can support the rear cover <NUM>, so that the rear cover <NUM> can stably bear the pressure applied by the outer decorative member <NUM> on the rear cover <NUM> during the mounting, and the mounting reliability is high.

After the mounting of the outer decorative member <NUM> is completed, the inner decorative member <NUM> is mounted on the rear cover <NUM>. <FIG> schematically shows an assembly process of the inner decorative member <NUM> and the outer decorative member <NUM>.

In some implementations, a specific implementation of fastening the inner decorative member <NUM> to the side of the outer decorative member <NUM> facing the annular flange <NUM> may be: providing a plurality of screws <NUM>, and connecting the inner decorative member <NUM> to the outer decorative member <NUM> by the plurality of screws <NUM>, where the plurality of screws <NUM> are evenly distributed around a center line of the through hole <NUM>. Therefore, the inner decorative member <NUM> and the outer decorative member <NUM> are screwed together, and the camera decorative member <NUM> is stressed evenly.

Before the plurality of screws <NUM> are provided, when the inner decorative member <NUM> is fastened to the side of the outer decorative member <NUM> facing the annular flange <NUM>, the inner decorative member <NUM> may be further connected to the outer decorative member <NUM> by the adhesive layer <NUM>. With such an arrangement, the inner decorative member <NUM> and the outer decorative member <NUM> are bonded together based on being connected by the screw <NUM>, to improve the reliability of the connection between the inner decorative member <NUM> and the outer decorative member <NUM>, thereby improving the stability of the camera decorative member <NUM>.

It should be noted that, when the inner decorative member <NUM> is mounted on the rear cover <NUM>, the rear cover <NUM> may be in a horizontal posture with the outer surface facing the ground and the inner surface facing away from the ground. That is, the rear cover <NUM> pre-mounted with the outer decorative member <NUM> shown in <FIG> is flipped by <NUM>°, so that the outer decorative member <NUM> is located below the rear cover <NUM> and is in contact with the working bench jig <NUM>. The working bench jig <NUM> can support the outer decorative member <NUM> and the rear cover <NUM>, and then the inner decorative member <NUM> moves from top to bottom into the through hole <NUM> to be connected to the outer decorative member <NUM>, to facilitate the mounting operation.

It may be understood that, in the implementation in which the inner decorative member <NUM> and the outer decorative member <NUM> are screwed and bonded, the connecting the inner decorative member <NUM> to the outer decorative member <NUM> from top to bottom may be specifically implemented by using the following steps:.

It should be understood that, in the process of bonding the inner decorative member <NUM> to the outer decorative member <NUM>, pressure is often applied to the inner decorative member <NUM> to make the inner decorative member <NUM> and the outer decorative member <NUM> bond firmly. During the screw connection of the inner decorative member <NUM> and the outer decorative member <NUM>, the screwing of the screw <NUM> also applies pressure on the inner decorative member <NUM>. It may be seen that during the mounting of the inner decorative member <NUM>, the rear cover <NUM> and the outer decorative member <NUM> are subjected to a certain pressure. The rear cover <NUM> pre-mounted with the outer decorative member <NUM> is flipped by <NUM>° and placed on the working bench jig <NUM>, and the working bench jig <NUM> may support the outer decorative member <NUM> and the rear cover <NUM>, so that the rear cover <NUM> and the fixed outer decorative member <NUM> can stably bear the pressure applied on the inner decorative member <NUM> during the mounting, so that the reliability of the mounting is high. In addition, during the mounting of the inner decorative member <NUM>, the working bench jig <NUM> can abut against the outer decorative member <NUM>, and the outer decorative member <NUM> abuts against the bonding layer <NUM> in turn, so that the bonding layer <NUM> does not fall off from the outer decorative member <NUM> or the rear cover <NUM>, and the outer decorative member <NUM> and the rear cover <NUM> may maintain a stable connection relationship. After the mounting is completed, waterproofing can still be implemented between the rear cover <NUM> and the camera decorative member <NUM>.

The inner decorative member <NUM> may also be in clearance fit with the rear cover <NUM>. Therefore, during the mounting, the part of the inner decorative member <NUM> may extend into the through hole <NUM> without a mounting jig, to facilitate the mounting of the inner decorative member <NUM> on the outer decorative member <NUM>, so that the mounting efficiency is high.

In summary, in the assembly method provided in the embodiments of this application, the outer decorative member <NUM> and the annular flange <NUM> are bonded through step S101, and the bonding layer <NUM> can block the gap between the outer decorative member <NUM> and the annular flange <NUM>, to prevent water in the external environment from entering the electronic device <NUM> through the space between the outer decorative member <NUM> and the rear cover <NUM>, so that sealing and waterproofing are implemented, and the yield of an air tightness test of the rear cover <NUM> can be effectively improved at the same time.

In addition, in a case that the electronic device <NUM> assembled by using the assembly method in this embodiment falls on the ground, the rear cover <NUM> of the electronic device <NUM> faces the ground or the display screen <NUM> collides with the ground, the outer decorative member <NUM> does not move in the direction away from the rear cover <NUM>, so that the bonding layer <NUM> is kept from being pulled along with the movement of the outer decorative member <NUM>, and the bonding layer <NUM> can still tightly connect the outer decorative member <NUM> and the rear cover <NUM>. In this way, the camera decorative member <NUM> can further be stably mounted on the rear cover <NUM> and prevented from falling off, and a liquid such as water in the external environment is prevented from entering the electronic device <NUM> through the bonding layer <NUM>, to allow the dropped electronic device <NUM> to maintain the waterproof performance, thereby avoiding the problem that after use for a period of time, because the electronic device <NUM> has been dropped and loses waterproof performance, water tends to enter to cause a short circuit.

In addition, the assembly method provided in this embodiment is to first mount the outer decorative member <NUM>, and then mount the inner decorative member <NUM>. During the mounting of the outer decorative member <NUM>, the rear cover <NUM> can support the outer decorative member <NUM>. During the mounting of the inner decorative member <NUM>, although being subjected to pressure, the outer decorative member <NUM> is kept from moving downward under the support of the working bench jig <NUM>, so that the bonding layer <NUM> is kept from falling off from the outer decorative member <NUM> or the rear cover <NUM>. In this way, on one hand, the outer decorative member <NUM> mounted in place is kept from falling off from the through hole <NUM>, which helps to avoid the impact of the subsequent mounting steps on the stability of the mounted outer decorative member <NUM>. In another aspect, the bonding layer <NUM> is kept from falling off from the outer decorative member <NUM> or the rear cover <NUM>, and the subsequent mounting steps does not affect the sealing performance of the bonding layer <NUM>, so that the rear cover <NUM> and the camera decorative member <NUM> assembled together can implement waterproofing.

After step S103, the assembly method provided in this embodiment may further include the following steps:
Step S104: Provide a lens <NUM>, where the lens <NUM> is mounted on the second structural member <NUM> of the outer decorative member <NUM>, and the appearance member <NUM> of the outer decorative member <NUM> is arranged surrounding the lens <NUM>. <FIG> schematically shows an assembly process of the lens <NUM> and the outer decorative member <NUM>. Referring to <FIG>, the purpose of this step is to connect the lens <NUM> to the outer decorative members <NUM>. In this way, compared with connecting the lens <NUM> to the outer decorative member <NUM> before step S103, the lens <NUM> fixed on the outer decorative member <NUM> is prevented from being pressed by the working bench jig <NUM> when the inner decorative member <NUM> is mounted on the rear cover <NUM>, thereby keeping the lens <NUM> from damage. It should be noted that, when step S104 is performed, it is necessary to flip the rear cover <NUM> in step S103 by <NUM>°, so that the rear cover <NUM> returns to the horizontal posture with the inner surface facing the ground and the outer surface facing away from the ground. In this way, the outer decorative member <NUM> is located above the rear cover <NUM>, so that the lens <NUM> can be mounted on the outer decorative member <NUM> from top to bottom.

It should be noted that, the execution sequence of the above steps should be determined according to functions and internal logic of the steps, and should not be construed as any limitation on the implementation process of the embodiments of this application.

In the embodiments of this application, it should be noted that, unless specified or limited otherwise, the terms "mounting", "connected", and "connecting" should be understood broadly, for example, which may be a fixed connection, an indirect connection through an intermediary, or internal communication inside two components or an interaction relationship between two components. A person of ordinary skill in the art may understand the specific meanings of the foregoing terms in the embodiments of this application according to specific situations. In this specification, the claims, and the accompanying drawings of the embodiments of this application, the terms "first", "second", "third", and the like are intended to distinguish similar objects but do not necessarily indicate a specific order or sequence.

Moreover, the terms "include", "contain", and any other variants thereof mean to cover the non- exclusive inclusion. For example, a process, method, system, product, or device that includes a list of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units not expressly listed or inherent to such a process, method, product, or device.

Claim 1:
An electronic device (<NUM>), comprising:
a middle frame (<NUM>);
a rear cover (<NUM>), wherein the rear cover (<NUM>) is arranged on a side of the middle frame (<NUM>), a through hole (<NUM>) is provided in the rear cover (<NUM>), and an inner wall of the through hole (<NUM>) protrudes toward a center of the through hole (<NUM>) to form an annular flange (<NUM>); and
a camera decorative member (<NUM>), wherein the camera decorative member (<NUM>) comprises an inner decorative member (<NUM>) and an outer decorative member (<NUM>), the outer decorative member (<NUM>) is mounted on a side of the annular flange (<NUM>) facing away from the middle frame (<NUM>), a part of the outer decorative member (<NUM>) is arranged in the through hole (<NUM>) and is connected to the annular flange (<NUM>) by a bonding layer (<NUM>), and a part of the inner decorative member (<NUM>) is arranged in the through hole (<NUM>) and is fastened to a side of the outer decorative member (<NUM>) facing the middle frame (<NUM>).