Patent Description:
With the application of side-wall fingerprint components in mobile phone products, and competitive requirements for thin mobile phones, narrow black borders of screens, and large batteries and high battery life, the requirements for mobile phone housings to resist bending are increasingly high, so that high-strength, high-toughness and bending-resistant materials (for example, high-strength and high-toughness die-casting aluminum alloys) come into being, and the costs are increased accordingly. To reduce the costs, on the basis of using an original material of a mobile phone housing, in order to avoid a case that a fingerprint component mounted on the side wall reduces the bending strength of the side wall in a thickness direction H, a design of widening/heightening a vertical wall (a part of the side wall of the mobile phone housing) of a battery compartment is used at the position of the side fingerprint, to ensure the bending resistance of the mobile phone. This widening/heightening design either sacrifices the competitiveness of the narrow black border, or squeezes out the battery space, resulting in worse battery life experience. <CIT> relates to an electronic device, comprising a housing including a sidewall; a through-hole configured to penetrate the sidewall; an assembling hole formed adjacent to the through-hole inside the housing; a key assembly configured to be received in the assembling hole and disposed to face an inner surface of the housing in an area where the through-hole is positioned; and a fixing member configured to be received in the assembling hole and to bring a surface of the key assembly into close contact with the inner surface of the housing around the through-hole and seal between the through-hole and an inner space of the housing.

<CIT> relates to a portable electronic device, comprising a front glass cover forming a front surface of the electronic device; a rear cover forming a rear surface of the electronic device; a bezel surrounding a space formed between the front cover and the rear cover, formed integrally or separately from the rear cover, and including a portion having an opening; a display device embedded in the space and including a view area exposed through the front cover; and a plate including a flat surface positioned parallel to the front cover in the space, wherein the opening penetrates from an outside of the bezel to the space in a first direction, wherein the electronic device comprises a key sized and shaped to be able to pass through the opening and including a first surface movably inserted into the opening in the first direction and facing in the first direction, a supporting structure mounted in a portion of the plate or the bezel and including a hole through which the key passes, a dome button mounted in the supporting structure and disposed towards the first surface of the key and the hole to be pressed when the key moves in the first direction, and a waterproof structure including a flexible material, and wherein the waterproof structure includes a first portion positioned between the first surface of the key and the dome button and a second portion extending from the first portion to be inserted between the supporting structure and the bezel and seal to waterproof the space between the supporting structure and the bezel.

<CIT> relates to a side key structure and a mobile terminal with the same. The side key structure comprises a combined side key body and an FPC board, wherein a horizontal key Dome piece and a vertical key Dome piece are arranged on the FPC board; a silica gel convex head of the combined side key body and the horizontal key Dome piece form at least one horizontal key contact in a horizontal direction; and the silica gel convex head of the combined side key body and the vertical key Dome piece form at least one vertical key contact in a vertical direction. <CIT> relates to a key structure and electronic equipment. The key structure comprises a first end and a second end, wherein a limitation groove is formed between the first end and the second end, the first end is used for being arranged outside an electronic equipment shell, the second end and the limitation groove penetrate through a hole and are arranged in the shell, a key switch is used for being arranged in the shell and is opposite to a position of the second end of a key part, a fixed part is arranged between the key switch and the key part and comprises a limitation part and a clamping part, the clamping part is used for being clamped with the shell, the limitation part is arranged in the limitation groove, a gap is reserved between the limitation part and the key part, so that the key part moves towards a key switch direction and props against the key switch to trigger the key switch when pressure towards the key switch direction is applied to the first end of the key part.

This application is intended to provide a mobile terminal, which can provide a mobile phone housing with higher bending strength in a limited space, reduce the costs, facilitate thinning of a mobile phone, and reduce a black border of a screen.

<NUM>-Housing; <NUM>-Battery compartment; <NUM>-Bottom wall; <NUM>-Second side wall; <NUM>-Recessed portion; <NUM>-First section; <NUM>-Intermediate section; <NUM>-Second section; <NUM>-First connection end; <NUM>-Second connection end; <NUM>-First side wall; <NUM>-Avoidance groove; <NUM>-Groove; <NUM>-Trigger portion; <NUM>-Bracket; <NUM>-Switch; <NUM>-Accommodation cavity; <NUM>-Through hole; <NUM>-Reinforcing portion; <NUM>-Support component; <NUM>-Display screen; and <NUM>-Volume key.

Accompanying drawings herein are incorporated into the specification and constitute a part of this specification, show embodiments that conform to this application, and are used for describing a principle of this application together with this specification.

To better understand the technical solutions of this application, the embodiments of this application are described below in detail with reference to the accompanying drawings.

It should be noted that, the described embodiments are merely some embodiments rather than all the embodiments of this application.

The terms used in the embodiments of this application are merely for describing specific embodiments, but are not intended to limit this application. The terms "a", "said" and "the" of singular forms used in the embodiments and the appended claims of this application are also intended to include plural forms, unless otherwise specified in the context clearly.

The term "and/or" used in this specification describes only an association relationship for describing associated objects and represents that three relationships may exist.

It should be noted that nouns of locality such as "above", "below", "left", and "right" described in the embodiments of this application are described from the perspective shown in the accompanying drawings, and should not be construed as a limitation to the embodiments of this application. In addition, in the context, it is further understood that when referring to an element connected "on" or "under" another element, the element may be not merely connected "on" or "under" another element, but also indirectly connected "on" or "under" another element through an intermediate element.

An embodiment of this application provides a mobile terminal. As shown in <FIG>, the mobile terminal includes a housing <NUM> and a display screen <NUM>. Along a thickness direction H of the housing <NUM>, the housing <NUM> has a bottom wall <NUM>. The bottom wall <NUM> may be integrally formed with the housing <NUM>, or may be detachably connected for mounting or disassembling components (for example, batteries) disposed inside the housing <NUM>. A side of the housing <NUM> away from the bottom wall <NUM> is used for mounting the display screen <NUM>. The mobile terminal may be a handheld device with a display function, such as a mobile phone, a tablet, or an electronic game console, which is not specifically limited herein.

For such a mobile terminal, generally, as shown in <FIG>, a component (for example, a fingerprint component) for device unlocking or locking is mounted on the side wall of the housing <NUM>, and a volume key <NUM> is also correspondingly disposed on the same side wall of the housing <NUM>. To mount the fingerprint component to implement unlocking or locking of the mobile terminal by pressing the fingerprint component, the side wall of the housing <NUM> is provided with an accommodation cavity <NUM>. A trigger portion <NUM> (that is, a component for unlocking or locking) at least partially protrudes into the accommodation cavity <NUM>, and the trigger portion <NUM> is movably connected to the accommodation cavity <NUM>. Along a first direction W, the accommodation cavity <NUM> has a first side wall <NUM> and a second side wall <NUM>, and the second side wall <NUM> can be used to form a battery compartment <NUM>. Specifically, the first side wall <NUM> of a part of the side wall provided with the accommodation cavity <NUM> is provided with a through hole <NUM> in communication with the accommodation cavity <NUM>, and the trigger portion <NUM> passes through the through hole <NUM> and partially protrudes into the accommodation cavity <NUM>. Along the first direction W (for example, the direction indicated by the arrow in <FIG>), the trigger portion <NUM> can move relative to the side wall. A switch <NUM> is disposed on the second side wall <NUM> on the side opposite to the through hole <NUM>. When the trigger portion <NUM> is pushed to move along the first direction W until the trigger portion abuts against the switch <NUM>, the display screen <NUM> can be unlocked after being connected. For the disposed trigger portion <NUM>, when the trigger portion <NUM> is connected to the side wall, to enable the trigger portion <NUM> to move along the first direction W close to the switch <NUM> and reset in the limited space in the accommodation cavity <NUM>, a bracket <NUM> is rotatably connected in the accommodation cavity <NUM>, the accommodation cavity <NUM> is provided with a limiting groove, and a rotating shaft rotatably connected to the bracket <NUM> is disposed in the limiting groove. A groove wall of the limiting groove is used to limit a rotation angle of the bracket <NUM>, so that the rotation of the bracket <NUM> drives the connected trigger portion <NUM> to move along the first direction W to a position abutting against the switch <NUM>, and the trigger portion <NUM> can be reset by the restoring force of the bracket <NUM>. Alternatively, the trigger portion <NUM> may be movably connected to the bracket <NUM>, and can move relative to the bracket <NUM> along the first direction W, to push the trigger portion <NUM> to move to abut against the switch <NUM>. After the pushing force is canceled, the trigger portion <NUM> can be reset relative to the bracket <NUM>. For the specific matching structure of the trigger portion <NUM> and the bracket <NUM>, as long as the trigger portion <NUM> can move in a direction close to or away from the switch <NUM> along the first direction W to implement unlocking or locking, the specific matching structure is not specifically limited herein.

To control the opening and closing of the mobile terminal through the side fingerprint component, the trigger portion <NUM> connected to the side wall needs to destroy the integrity of the side wall, and the accommodation cavity <NUM> is in a form of structural fit that at least forms the first side wall <NUM> and the second side wall <NUM>. The structural stability of the side wall forming the housing <NUM> is further reduced. When a mobile terminal is used, an operation such as pressing the display screen <NUM> is often required to realize the touch function. During operation, when the housing <NUM> bears a force along a thickness direction H of the housing <NUM>, since the integrity of the side wall of the housing <NUM> is destroyed, the bending strength thereof along the thickness direction H decreases. Under the action of the force along the thickness direction H, the side wall is easy to deform, and bending deformation is more likely to occur especially at the positions of the first side wall <NUM> and the second side wall <NUM>. To improve the bending resistance of the side wall of the housing <NUM>, the material of the housing <NUM> can be replaced with a material with high strength and high toughness, but the cost of the material is relatively high, which is not conducive to the mass production of the housing <NUM>. Alternatively, a design of widening/heightening the first side wall <NUM> and/or the second side wall <NUM> may be used, to improve the bending strength of the housing <NUM>, but this method increases the overall volume of the mobile terminal, or the spatial position of other components is occupied in the original limited space, which causes inconvenience in use of other components, and is not conducive to the thin and light design of the mobile terminal.

Therefore, in order not to increase the cost, that is, to use the housing <NUM> of the original material, and to improve the bending resistance of the side wall of the housing <NUM> along the thickness direction H without increasing the space occupied by other parts of the mobile terminal, as shown in <FIG>, one or more support components <NUM> are disposed on the side wall. The support component <NUM> is disposed on the side wall (where the support component <NUM> is disposed on at least one of the first side wall <NUM> or the second side wall <NUM>) to increase the bending strength of the corresponding position. In addition, the support component <NUM> is a structure disposed on the side wall based on the corresponding side wall structure, without additional increase of the height or width of the corresponding side wall, so that the side wall has better bending resistance, and the design of the mobile terminal can be made lighter and thinner.

For the disposed support component <NUM> to improve the bending strength of the corresponding position when being connected to the corresponding side wall, the support component <NUM> is provided with a buffer portion. Along the thickness direction H of the housing <NUM>, there is a preset distance between the buffer portion and the display screen <NUM>. With the arrangement of the buffer portion, after the support component <NUM> is connected to the corresponding side wall position, the display screen <NUM> is under pressure and then generates a pressure in the thickness direction H on the side wall connected to the display screen <NUM>. To prevent the side wall from bending under pressure to result in cases such as damage or short circuit since the display screen <NUM> comes into contact with the components inside the housing <NUM>, the arrangement of the buffer portion can increase the bending resistance of the side wall, to prevent the side wall from bending to cause the display screen <NUM> to come into contact with the internal components. Therefore, the preset distance between the buffer portion and the display screen <NUM> aims to prevent the display screen <NUM> from coming into contact with the internal components or a specific distance between the display screen and the internal components. As long as the buffer portion can guarantee that, under the action of the external pressure, the support component <NUM> can improve the bending strength of the connected side wall so that the display screen <NUM> does not come into contact with the internal components (the distance between the buffer portion and the display screen <NUM> is within an allowable range), no specific limitation is made herein.

Optionally, for the disposed support component <NUM> to improve the bending strength of the corresponding position of the side wall when being connected to the corresponding position of the housing <NUM>, the support component <NUM> and the first side wall <NUM> are integrally formed, and the support component <NUM> and the second side wall <NUM> are integrally formed. Through integral molding, the stability of the connection between the support component <NUM> and the side walls is improved, and the support effect of the support component <NUM> on the side walls is improved, so that the side wall can achieve better bending resistance without increasing own thickness or height, avoiding contact of the display screen <NUM> with the internal components under pressure.

In a specific implementation provided in this application, as shown in <FIG>, for the disposed support component <NUM>, when being connected to the corresponding position of the side wall, the support component <NUM> can improve the bending strength of the side wall, and the arrangement of the support component <NUM> does not increase the height or width of the corresponding side wall. For the disposed support component <NUM> and the buffer portion disposed thereon, a variety of different structural fit can be adopted, and specifically, the following manners can be included: In a specific implementation, as shown in <FIG>, along the thickness direction H of the housing <NUM>, the support component <NUM> includes a first connection end <NUM> and a second connection end <NUM>, and there is an intermediate section <NUM> between the first connection end <NUM> and the second connection end <NUM>; along a thickness direction H of the housing <NUM>, the second connection end <NUM> is configured to connect a bottom wall <NUM> of the housing <NUM>, and the first connection end <NUM> is configured to connect the display screen <NUM>; a cross-sectional area of the first connection end <NUM> is S1, a cross-sectional area of the second connection end <NUM> is S2, a minimum cross-sectional area of the intermediate section <NUM> is S3, S3<S1, and S3<S2; and the buffer portion is formed at a position at which a cross section of the intermediate section <NUM> is S3. In this structural fit, the first connection end <NUM> and the second connection end <NUM> are respectively used to connect the corresponding side walls, so that the support component <NUM> is disposed along the thickness direction H of the housing <NUM>. Along the thickness direction H, the first connection end <NUM> and the second connection end <NUM> are respectively located on two end surfaces of the corresponding side walls. When the side wall is under pressure, the corresponding connection end can transmit the force to the intermediate section <NUM>, and the buffer portion disposed in the intermediate section <NUM> can buffer the transmitted pressure to distribute the stress, thereby improving the bending strength of the side wall. Specifically, it can be understood that, along the thickness direction H, when the same pressure is applied to the housing <NUM> and the display screen <NUM>, for the side wall without the support component <NUM>, since the cross-sectional area of each part is equal along the thickness direction H, the bending stress is the axial pressure in the cross-sectional area. When the support component <NUM> with variable cross-section is disposed on the side wall, along the thickness direction H of the housing <NUM>, the cross-sectional area of the connection ends on both sides is larger than the minimum cross-sectional area of the intermediate section <NUM>. Since the position of the buffer portion is in the minimum cross-sectional area, under this limitation, the bending stress is greater. It can be learned that, the cross-sectional area of the corresponding position of the buffer portion is reduced, so that the rigidity of the support component <NUM> can be improved, and then the connected side wall has better bending resistance.

Specifically, for the disposed intermediate section <NUM> to form the buffer portion at the position of the minimum cross-sectional area and connect the first connection end <NUM> and the second connection end <NUM> to improve the stability of the connection, as shown in <FIG>, along the thickness direction H of the housing <NUM>, the sectional area of the intermediate section <NUM> gradually increases from the buffer portion to the first connection end <NUM>, and the sectional area of the intermediate section <NUM> gradually increases from the buffer portion to the second connection end <NUM>. Through such an arrangement that the cross-sectional area of the support component <NUM> gradually increases from the buffer portion at the middle position to two ends, the structural stability of the support component <NUM> can be improved while ensuring good rigidity.

Optionally, for the disposed support component <NUM>, according to different positions and sizes of the disposed side wall, to prevent the disposed support component <NUM> from protruding from the side wall, the support component <NUM> may be in different shapes, that is, the shape of the cross section of the support component <NUM> includes a circle, an ellipse, a quadrangle, a polygon, and a rhombus, which is not specifically limited herein.

In another specific implementation, as shown in <FIG>, for the disposed support component <NUM>, to improve the bending strength of the corresponding side wall position, the support component <NUM> is provided with a recessed portion <NUM>, and the recessed portion <NUM> forms the buffer portion. Through the arrangement of the recessed portion <NUM>, at this position, along the thickness direction H of the housing <NUM>, the cross-sectional area of the support component <NUM> at the position of the recessed portion <NUM> is smaller than cross-sectional areas of other positions. When the support component <NUM> is connected to the corresponding side wall, along the thickness direction H of the housing <NUM>, the cross-sectional area of the middle position is smaller than the cross-sectional area of the parts that bear external pressure at both ends, so that when the external pressure is transmitted to the position where the recessed portion <NUM> is disposed, the change of the cross-sectional area at the position of the recessed portion <NUM> can increase the bending stress.

Specifically, for the recessed portion <NUM> to exert a better effect when being disposed on the side wall to improve the bending resistance of the side wall, along a second direction, a cross-sectional area of the first side wall <NUM> is S4, the recessed portion <NUM> disposed on the first side wall <NUM> has a cross-sectional area S5, and S5 does not exceed one-third to one-fourth of S4; and along the second direction L, a cross-sectional area of the second side wall <NUM> is S6, the recessed portion <NUM> disposed on the second side wall <NUM> has a cross-sectional area S7, and S7 does not exceed one-third to one-fourth of S6. With the arrangement within this range, when the support component <NUM> is correspondingly disposed on the first side wall <NUM> and/or the second side wall <NUM>, a better support effect can be achieved and the bending resistance of the side wall can be improved.

Optionally, for the recessed portion <NUM> disposed on the support component <NUM> to exert a better effect when the recessed portion <NUM> is connected to the corresponding side wall so that the bending resistance of the side wall is better, the support component <NUM> includes a first section <NUM> and a second section <NUM>, and an intermediate section <NUM> is connected between the first section <NUM> and the second section <NUM>. Along the thickness direction H of the housing <NUM>, the recessed portion <NUM> is located between the first section <NUM> and the second section <NUM>, the first section <NUM> is configured as a side wall of the recessed portion <NUM> near the display screen <NUM>, the second section <NUM> is connected to a bottom wall <NUM> of the housing <NUM>, a length of the intermediate section <NUM> does not exceed one-fourth of a length of the first section <NUM>, and a length of the second section <NUM> is not less than a thickness of the bottom wall <NUM>.

It should be emphasized herein that for the support component <NUM> and the buffer portion disposed thereon, a matching structure used can be adjusted according to the actual use situation. The foregoing matching structure may be used, or other structures may be used, which is not specifically limited herein as long as the bending resistance of the connected side walls can be improved through the support component <NUM> and the buffer portion disposed thereon.

In a specific implementation of this application, as shown in <FIG> and <FIG>, in the accommodation cavity <NUM> formed between the first side wall <NUM> and the second side wall <NUM>, the first side wall <NUM> and the second side wall <NUM> are weaker than other side walls. Therefore, the support component <NUM> may be considered to be disposed at other positions of the side wall while arranging the support component <NUM> on the first side wall <NUM> and/or the second side wall <NUM>. When the support component <NUM> is disposed on the first side wall <NUM> and/or the second side wall <NUM>, to enable the accommodation cavity <NUM> to have a larger accommodation space, the buffer portion may be disposed as the recessed portion <NUM>. Along the first direction, the recessed portion <NUM> is a groove structure provided on a side of the first side wall <NUM> close to the accommodation cavity <NUM>, and/or, the recessed portion <NUM> is a groove structure provided on a side of the second side wall <NUM> close to the accommodation cavity <NUM>. Through the arrangement of such a recessed portion, while the bending strength of the corresponding side walls can be improved, the accommodation space of the accommodation cavity <NUM> can be increased.

As shown in <FIG>, when the support component <NUM> is disposed on the first side wall <NUM> and the second side wall <NUM>, to enable the support component <NUM> to achieve a better support effect and improve the bending resistance of the side wall, for the support components <NUM> respectively disposed on the first side wall <NUM> and the second side wall <NUM>, along the first direction W, the support components <NUM> are not overlapped or partially overlapped. Through the at least incompletely overlapped arrangement, the support components <NUM> are combined to act, and disperse, when subjected to external pressure, the generated stress so as not to concentrate on one support component <NUM> or the buffer portion of one support component <NUM>. In this way, when the pressure along the thickness direction H is applied, the stress can be dispersed to ensure that the matching support components <NUM> have better bending resistance. Preferably, the support components <NUM> disposed on the first side wall <NUM> and the second side wall <NUM> are disposed in a completely non-overlapping manner, and a larger distance between two closest support components <NUM> projected onto a plane along the first direction W indicates that more stress can be dispersed on the corresponding side wall, so that the bending resistance of the side wall can be improved. However, the maximum distance between the support components <NUM> needs to be based on the fact that the support components <NUM> can cooperate to disperse the stress, rather than increasing infinitely.

Specifically, as shown in <FIG>, <FIG>, and <FIG>, in the structural fit of the accommodation cavity <NUM> movably connected to the trigger portion <NUM>, for the accommodation cavity to accommodate at least part of the trigger portion <NUM>, and to realize that the action of the trigger portion <NUM> can make unlock the display screen <NUM>, the trigger portion <NUM> includes a connected cable board, where the cable board is electrically connected to the circuit board controlling the display screen <NUM> through a cable. In the accommodation cavity <NUM>, the arrangement of the corresponding switch <NUM>, bracket <NUM>, and other structures takes up most of the space. To mount the cable board, and for the placement position of the cable board not to affect the movement of the corresponding bracket <NUM> and other structures, the first side wall <NUM> is provided with an avoidance groove <NUM>. The avoidance groove <NUM> is disposed on a side close to the accommodation cavity <NUM> and is in communication with the accommodation cavity <NUM>. The avoidance groove <NUM> is used to accommodate the cable board. The avoidance groove <NUM> generally runs through the first side wall <NUM> along the thickness direction H of the housing <NUM>. In this structural fit, the disposed avoidance groove <NUM> reduces the bending strength of the corresponding first side wall <NUM> and the second side wall <NUM>. In addition, the avoidance groove is disposed when the distance between the first side wall <NUM> and the second side wall <NUM> is small. To facilitate processing, numerical control machining is generally selected, and in numerical control machining, to process the avoidance groove <NUM>, when the distance between the first side wall <NUM> and the second side wall <NUM> is small, and a cutter for processing the groove starts processing at the initial position, it is easy to touch the inner wall of the second side wall <NUM>, so that a first cut on the second side wall <NUM> appears. In this structure, when the housing <NUM> is subjected to the pressure in the thickness direction H, under the action of the stress, the position of the first cut is easy to be torn, so that the structural stability of the housing <NUM> is destroyed, which affects the performance of the terminal device. To avoid such problems, the support component <NUM> may be disposed on the second side wall <NUM>, and the groove structure provided by the buffer portion in the support component <NUM> can at least be disposed at the position where the first cut can be produced when the avoidance groove <NUM> is processed. Therefore, the disposed groove structure can be used as a buffer portion to improve the bending strength of the side wall, and can also avoid the cutter, to prevent a first cut being generated when the avoidance groove <NUM> is processed, improving the structural stability of the housing <NUM>.

Optionally, the groove structure has an inner wall. The groove structure is at least disposed in the second side wall <NUM> at the corresponding feed position when the cutter processes the avoidance groove <NUM>. To facilitate working, before processing the avoidance groove <NUM> by the cutter, the groove structure is first processed at the corresponding position to form the support component <NUM>. To facilitate processing, the groove structure also uses numerical control machining, and the cutter selects a size suitable for processing the groove structure. To facilitate processing, the inner wall of the groove structure may be the same arc-shaped surface as a selected cutter, to reduce processing costs.

More specifically, as shown in <FIG> and <FIG>, when processing the avoidance groove <NUM>, after processing by the cutter, the cutter may easily touch the edge position at a side of the groove structure away from the bottom wall <NUM> of the housing <NUM> in the first side wall <NUM> during the movement of the cutter to form a second cut. Similarly, to prevent the second cut from being easily torn under pressure, a reinforcing portion <NUM> is disposed at this position, the reinforcing portion <NUM> is a groove <NUM> provided on the first side wall <NUM>, and the groove <NUM> is in communication with the avoidance groove <NUM>. In a direction from the accommodation cavity <NUM> to the first side wall, a recessed depth of the groove <NUM> is less than a recessed depth of the avoidance groove <NUM>. A groove <NUM> is provided at a position corresponding to a second cut, and the groove <NUM> is in communication with the avoidance groove <NUM>, to prevent the cutter from colliding with the first side wall <NUM> to form the second cut in a process of being drawn out from the avoidance groove <NUM>, providing a buffer space for the cutter to be drawn out.

In addition, the reinforcing portion <NUM> is disposed as the structure of the groove <NUM>, and the depth of the groove <NUM> is smaller than the depth of the avoidance groove <NUM> in the direction from the accommodation cavity <NUM> to the first side wall <NUM>, for the groove to be the same as the groove structure of the support component <NUM> disposed at the first cut. Similarly, through the combination of the groove <NUM> and the avoidance groove <NUM>, along the thickness direction H of the housing <NUM>, a structure with large cross-sectional areas at two ends and a small cross-sectional area in the middle is formed in the first side wall <NUM> to avoid the reduction of the rigidity of the first side wall <NUM> due to the setting of the groove to avoid the formation of the second cut. Through the combination of the groove <NUM> and the avoidance groove <NUM>, viewed from the second direction L, the cross section of this part is similar to an "I"-shaped structure, which reduces the requirements on the yield strength of the material and achieves better bending resistance.

Claim 1:
A mobile terminal, comprising:
a housing (<NUM>), wherein a side wall of the housing (<NUM>) is provided with an accommodation cavity (<NUM>), and the accommodation cavity (<NUM>) has a first side wall (<NUM>) as a part of the side wall of the housing (<NUM>) and a second side wall (<NUM>);
a display screen (<NUM>), mounted in the housing (<NUM>);
a trigger portion (<NUM>), comprising a cable board, wherein the trigger portion (<NUM>) at least partly protrudes into the accommodation cavity (<NUM>) and is movably connected to the accommodation cavity (<NUM>); and
a support component (<NUM>), disposed on at least one of the first side wall (<NUM>) or the second side wall (<NUM>), wherein
the support component (<NUM>) is provided with a buffer portion, and there is a preset distance between the buffer portion and the display screen (<NUM>) along a thickness direction H of the housing (<NUM>),
wherein the first side wall (<NUM>) is provided with an avoidance groove (<NUM>), the avoidance groove (<NUM>) is disposed on a side of the first side wall (<NUM>) close to the accommodation cavity (<NUM>) and is in communication with the accommodation cavity (<NUM>), and the avoidance groove (<NUM>) is configured to accommodate the cable board, wherein the support component (<NUM>) comprises a first connection end (<NUM>) and a second connection end (<NUM>), and there is an intermediate section (<NUM>) between the first connection end (<NUM>) and the second connection end (<NUM>);
along the thickness direction H of the housing (<NUM>), the second connection end (<NUM>) is configured to connect a bottom wall (<NUM>) of the housing (<NUM>), and the first connection end (<NUM>) is configured to connect the display screen (<NUM>);
a cross-sectional area of the first connection end (<NUM>) is S1, a cross-sectional area of the second connection end (<NUM>) is S2, a minimum cross-sectional area of the intermediate section (<NUM>) is S3, S3<S <NUM>, and S3<S2; and
the buffer portion is formed at a position at which a cross section of the intermediate section (<NUM>) is S3.