WO2018018605A1

WO2018018605A1 - Key module and mobile terminal

Info

Publication number: WO2018018605A1
Application number: PCT/CN2016/092258
Authority: WO
Inventors: 张建勇; 张垚磊; 靳宏伟; 周金锋; 郭玉坤; 王郑权
Original assignee: 华为技术有限公司
Priority date: 2016-07-29
Filing date: 2016-07-29
Publication date: 2018-02-01
Also published as: CN108605062A; CN108605062B

Abstract

Disclosed is a key module (200), comprising: a housing (1), wherein an interior of the housing (1) is provided with a key groove (11), the key groove (11) has a first side wall (12) and a second side wall (13) opposite each other, and the second side wall (13) has a plurality of through holes (14) arranged at intervals, so as to make an exterior of the housing (1) and the key groove (11) be in communication with one another; a printed circuit board (2) being accommodated in the key groove (11), and the printed circuit board (2) being provided with a key circuit (20); and keys (31, 32), comprising pressing portions (311, 321) located at the exterior of the housing (1) and trigger portions (313, 315, 324) extending into the key groove (11) via the plurality of through holes (14) so as to trigger the key circuit (20), the trigger portions (313, 315, 324) being used to transfer a pressing force received by the pressing portions (311, 321) to the key circuit (20). The key module (200) has a good handfeel. The key module (200) is also used in a mobile terminal (100).

Description

Button module and mobile terminal

Technical field

The present application relates to the field of mobile terminal technologies, and in particular, to a button module and a mobile terminal applying the button module.

Background technique

At present, the assembly scheme of the side button module of a mobile terminal (for example, a mobile phone) is generally: assembling a side key circuit board in a front case, and assembling a button in a rear case, and assembling the front case and the rear case to realize a button and a side key circuit board. Size fit.

Since the button is a movable member, and the button is assembled separately from the side button circuit board, it is necessary to ensure the accuracy of the position of the button and the side button circuit board by the assembly precision, and the assembly size chain is too long, which may easily lead to a bad touch of the button.

Summary of the invention

The technical problem to be solved by the embodiments of the present application is to provide a button module with good hand feeling and a mobile terminal applying the button module.

In order to achieve the above object, the implementation of the present application adopts the following technical solutions:

In a first aspect, an embodiment of the present application provides a button module, including:

a housing having a button slot therein, the button slot having an opposite first side wall and a second side wall, the second side wall having a plurality of spaced through holes for communicating the case The outside of the body and the button slot;

a printed circuit board received in the button slot, wherein the printed circuit board is provided with a button circuit;

a button, comprising a pressing portion located outside the housing, and a trigger portion extending into the key groove through the plurality of through holes to trigger the button circuit, the trigger portion for receiving the pressing portion The pressing force is transmitted to the button circuit.

In the present embodiment, the user can press the pressing portion outside the casing to control the button circuit. Since the printed circuit board and the button are assembled on the casing, the assembly size chain is short and the assembly accuracy is high, so that the button module has a good hand feeling, and the button control action is accurate.

Wherein, the printed circuit board may be a flexible printed circuit board, a rigid printed circuit board or a flexible combined printed circuit board.

In a first possible implementation, the plurality of through holes include a first through hole and a second through hole, and the first through hole and the second through hole form a first supporting wall;

The button includes a first sub-button, and the first sub-button includes a first pressing portion and a first hook portion and a second hook portion respectively formed at two ends of the first pressing portion, the first hook portion and the The second hook portion protrudes into the first through hole and the second through hole respectively and is caught on the second side wall, and the first pressing portion abuts to the first portion through the first pressing portion The first pressing portion of the supporting wall is elastically deformable away from the surface of the key groove.

In this embodiment, the first pressing portion, the first hook portion, the second hook portion, and the first pressing portion cooperate with the second sidewall to make the first The sub-button is movably mounted to the second side wall, and the connecting action is simple, firm and stable, and is not easy to fall off.

Wherein, the first pressing portion adopts a foam material.

The first pressing portion is attached to the first pressing portion to simplify the assembly process of the button module.

In a second possible implementation manner, the plurality of through holes include a third through hole, a fourth through hole, and a fifth through hole, and the second through hole and the fourth through hole form a second a support wall, a third support wall is formed between the fourth through hole and the fifth through hole;

The button includes a second sub-button, and the second sub-button includes a second pressing portion and a third hook portion and a fourth hook portion respectively formed at two ends of the second pressing portion, the third hook portion and the The fourth hook portion extends into the third through hole and the fifth through hole respectively and is caught on the second side wall, and the second pressing portion abuts the second through the second pressing portion The surface of the support wall that is away from the surface of the button slot and abuts the surface of the third support wall away from the button slot by a third pressing portion, the second pressing portion and the third pressing portion Both can be elastically deformed.

In this embodiment, the second pressing portion, the third hook portion, the fourth hook portion, the second pressing portion, and the third pressing portion and the second sidewall The cooperation is such that the second sub-button is movably mounted to the second side wall, and the connecting action is simple, firm and stable, and is not easy to fall off.

Wherein, the second pressing portion and the third pressing portion each adopt a foam material.

The second pressing portion and the third pressing portion are respectively attached to the second pressing portion to simplify the assembly process of the button module.

In a third possible implementation manner, the plurality of through holes include a first through hole and a second through hole, and the first through hole and the second through hole form a first supporting wall;

The button includes a first sub-button, and the first sub-button includes a first pressing portion and a first hook portion and a second hook portion respectively formed at two ends of the first pressing portion, the first hook portion and the The second hook portion protrudes into the first through hole and the second through hole respectively and is caught on the second side wall, and the first pressing portion abuts to the first portion through the first pressing portion a surface of the support wall remote from the button slot, wherein the first pressing portion can be elastically deformed;

The plurality of through holes further includes a third through hole, a fourth through hole, and a fifth through hole, and a second supporting wall is formed between the third through hole and the fourth through hole, the fourth through hole Forming a third support wall with the fifth through hole;

The button further includes a second sub-button, the second sub-button includes a second pressing portion and a third hook portion and a fourth hook portion respectively formed at two ends of the second pressing portion, the third hook portion and The fourth hook portion protrudes into the third through hole and the fifth through hole respectively and is caught on the second side wall, and the second pressing portion abuts the first through the second pressing portion a surface of the second supporting wall that is away from the surface of the button slot and abuts the surface of the third supporting wall away from the button slot by a third pressing portion, the second pressing portion and the third pressing portion The parts are all elastically deformable.

In this embodiment, the button includes the first sub button and the second sub button. The first sub-button is movably mounted to the first through the first pressing portion, the first hook portion, the second hook portion, and the first pressing portion and the second side wall. The second side wall is simple, firm and stable, and is not easy to fall off. The second sub-button passes through the second pressing portion, the third hook portion, the fourth hook portion, the second pressing portion, and the third pressing portion and the second sidewall The cooperation is movably mounted to the second side wall, and the connecting action is simple, firm and stable, and is not easy to fall off.

Wherein, the first pressing portion, the second pressing portion and the third pressing portion all adopt a foam material.

The first pressing portion is attached to the first pressing portion, and the second pressing portion and the third pressing portion are respectively attached to the second pressing portion to simplify the The assembly process of the button module.

In conjunction with a third possible implementation, in a fourth possible implementation, the button module further includes a card clip, the card clip includes opposing first and second walls, the first wall The printed circuit board is pressed against, and the second wall presses against the second side wall.

In this embodiment, the card clip clamps the printed circuit board on the first side wall, The printed circuit board is not damaged in normal use due to shaking or the like, and the printed circuit board is highly reliable.

In conjunction with the fourth possible implementation, in a fifth possible implementation, the second wall includes a first latching portion and a second latching portion, the first latching portion covering a portion of the second a through hole for catching the second hook portion, the second card portion covering a portion of the third through hole to catch the third hook portion.

In this embodiment, the card clip can simultaneously hook the first sub button and the second sub button, which shortens the spacing between the first sub button and the second sub button, which is beneficial to The miniaturization design of the button module. At the same time, the fixing actions of the first sub-button and the second sub-button can also be implemented at one time, which simplifies the assembly process of the button module and reduces the production cost.

In conjunction with the fourth or fifth possible embodiment, in a sixth possible embodiment, the card clip further includes a connection portion connected between the first wall and the second wall.

Wherein the card holder is made of an elastic material, so when the card clip is placed in the button slot of the housing and the card clip is squeezed, the first wall is printed The circuit board applies an elastic force, and the second wall applies an elastic force to the second side wall such that the card clip and the printed circuit board are fixed in the key groove.

With reference to any one of the third to sixth possible embodiments, in a seventh possible implementation, the third through hole is disposed adjacent to the second through hole, and the plurality of through holes are along Arranged in one direction;

The printed circuit board includes a first switch, a second switch, and a third switch that are sequentially arranged along the first direction, and one-to-one corresponding to the first triggering portion, the second triggering portion, and the third triggering portion, such that Each of the first triggering portion, the second triggering portion, and the third triggering portion can independently change the circuit state of the printed circuit board.

In combination with the first and the third to the seventh possible embodiments, in the eighth possible implementation, the first sub-button further includes a first portion formed on the first pressing portion a triggering portion and a second triggering portion, wherein the first triggering portion and the second triggering portion respectively correspond to the first through hole and the second through hole, and the first pressing portion is pressed to make the first A triggering portion and/or the second triggering portion presses the button circuit.

In use, the user presses the first pressing portion, and the first pressing portion is deformed, so that the first triggering portion and/or the second triggering portion presses the button circuit of the printed circuit board Changing the circuit state of the button circuit.

In this embodiment, the first triggering portion and the second triggering portion are opposite to the printed circuit board The pressing and connecting operation is simple, reliable, and high in accuracy, and the first sub-button has a good hand feeling and performance.

The first sub-button is a volume key or a brightness key.

In combination with the first and the third to the eighth possible embodiments, in a ninth possible implementation, the first pressing portion has an elongated shape, and the first pressing portion is In the elongated shape, the extending direction of the first pressing portion is the same as the extending direction of the first pressing portion.

In this embodiment, since the first pressing portion has an elongated shape, and the extending direction of the first pressing portion is the same as the extending direction of the first pressing portion, the first sub-button has Better stability.

With reference to the eighth or ninth possible implementation manner, in a tenth possible implementation manner, the first triggering portion and the second triggering portion are symmetrically distributed on both sides of the first pressing portion The first sub-button is made to have a better feel and the control action is more accurate.

With the possible implementation of any one of the eighth to the tenth, in the eleventh possible implementation, the first triggering portion includes a first positioning portion and is disposed outside the first positioning portion The first protective sleeve includes a second positioning portion and a second protective sleeve sleeved outside the second positioning portion.

In this embodiment, the first protective sleeve and the second protective sleeve can effectively prevent the first positioning portion and the second positioning portion from injuring the printed circuit board, and improving the button module. Performance reliability and service life

In conjunction with the eleventh possible implementation, in the twelfth possible implementation, the first pressing portion, the first hook portion, the first positioning portion, the second positioning portion, and the The second hook portion is integrally formed, and the alignment accuracy of the first sub-button and the printed circuit board can be improved, and the assembly accuracy is high, so that the button module has a good hand feeling, and the first sub-button is controlled. The action is accurate.

With reference to any one of the second to seventh possible implementation manners, in the thirteenth possible implementation manner, the second sub-button further includes a third triggering portion, where the third triggering portion is formed in the The third pressing portion corresponds to the fourth through hole, and the third triggering portion presses the button circuit by pressing the second pressing portion.

In use, the user presses the second pressing portion, and the second pressing portion and/or the third pressing portion are deformed, so that the third triggering portion presses the button circuit to change the button. The circuit state of the circuit.

In this embodiment, the pressing connection of the third triggering portion and the printed circuit board is simple, Reliable and accurate, the second sub-button has good hand feeling and performance.

The second sub-button is an on-off key or a power button.

With reference to the second to seventh and the thirteenth possible implementation manners, in the fourteenth possible implementation, the second pressing portion has an elongated shape, the second pressing portion and the The third pressing portion is symmetrically distributed on both sides of the third triggering portion, so that the second sub-button has better stability, and has good hand feeling and accurate control action.

In conjunction with the thirteenth or fourteenth possible implementation manner, in the fifteenth possible implementation, the third triggering portion includes a third positioning portion and a first portion disposed outside the third positioning portion Three protective sleeves. The third protective cover can effectively prevent the third positioning portion from injuring the printed circuit board, thereby improving performance reliability and service life of the button module.

With reference to the fifteenth possible implementation, in the sixteenth possible implementation, the second pressing portion, the third hook portion, the third positioning portion, and the fourth hook portion are integrally formed The alignment accuracy of the second sub-button and the printed circuit board can be improved, and the assembly accuracy is high, so that the button module has a good hand feeling, and the control action of the second sub-button is accurate.

In a second aspect, the embodiment of the present application further provides a mobile terminal, including a first housing, a second housing, and the button module according to any one of the above, wherein the housing of the button module is formed in the On a housing, the second housing is coupled to the first housing to enclose the button slot.

The button module of the mobile terminal has a good hand feeling, and the button control action is accurate.

In a possible implementation, the connection between the first housing and the second housing is provided with a seal for sealing a gap of the connection, so that the mobile terminal has a waterproof function, in particular The waterproof area of the area where the button module is located is good.

Wherein, the sealing member is made of waterproof foam material.

DRAWINGS

In order to more clearly illustrate the technical solutions of the present application, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, which are common in the art. For the skilled person, other drawings can be obtained as shown in these drawings without any creative work.

FIG. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application.

FIG. 2 is a schematic structural diagram of another perspective of a mobile terminal according to an embodiment of the present application.

Figure 3 is a cross-sectional view taken along line A-A of Figure 2;

FIG. 4 is a schematic structural diagram of a housing of a button module according to an embodiment of the present application.

FIG. 5 is a schematic structural view of another embodiment of a housing of a button module according to an embodiment of the present application.

FIG. 6 is a schematic structural diagram of a first sub-button of a button module according to an embodiment of the present application.

Figure 7 is an enlarged view of the structure at A in Figure 3.

FIG. 8 is a schematic structural diagram of a second sub-button of a button module according to an embodiment of the present application.

Figure 9 is an enlarged view of the structure of B in Figure 3.

FIG. 10 is a schematic structural diagram of a card clip of a button module according to an embodiment of the present application.

Figure 11 is an enlarged view of the structure at C in Figure 3.

FIG. 12 is a schematic structural diagram of a printed circuit board of a button module according to an embodiment of the present application.

Figure 13 is a cross-sectional view taken along line B-B of Figure 2;

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

Referring to FIG. 1 to FIG. 8 together, an embodiment of the present application provides a button module 200 including a housing 1, a printed circuit board 2, and buttons (31, 32). A key slot 11 is defined in the interior of the housing 1. The interior of the button slot 11 is provided with an opposite first sidewall 12 and a second sidewall 13. The second sidewall 13 is spaced apart from each other. The through holes 14 are configured to communicate with the outside of the housing 1 and the key groove 11. The printed circuit board 2 is received in the key slot 11, and the printed circuit board 2 is provided with a button circuit 20. The button (31, 32) includes a pressing portion (311, 321) located outside the housing 1 and protrudes into the button slot 11 through the plurality of through holes 14 and is used to trigger the button circuit 20. The triggering portion (313, 315, 324) for transmitting the pressing force received by the pressing portion (311, 321) to the button circuit 20. That is, the user can press the pressing portion (311, 321) outside the casing 1, thereby controlling the button circuit 20.

In this embodiment, since the printed circuit board 2 and the buttons (31, 32) are assembled on the casing 1, the assembly size chain is short, and the assembly accuracy is high, so that the button module 200 has good The feel of the buttons (31, 32) controls the movement accurately.

In the embodiment, the button slot 11 is opened on one side, and the printed circuit board 2 is inserted into the button slot 11 from the opening. The printed circuit board 2 may be a flexible printed circuit board, a rigid printed circuit board or a flexible bonded printed circuit board.

Further, as shown in FIG. 1 to FIG. 8 , as an optional implementation manner, the plurality of through holes 14 include a first through hole 141 and a second through hole 142 , and the first through hole 141 and A first support wall 131 is formed between the second through holes 142. The button (31, 32) includes a first sub-button 31, and the first sub-button 31 includes a first pressing portion 311 and a first hook portion 312 respectively formed on the first pressing portion 311, and a first trigger The portion 313 , the second trigger portion 315 , and the second hook portion 316 are respectively formed at both ends of the first pressing portion 311 . The first hook portion 312 and the second hook portion 316 respectively extend into the first through hole 141 and the second through hole 142 and are stuck on the second sidewall 13 , the first trigger The portion 313 and the second trigger portion 315 respectively correspond to the first through hole 141 and the second through hole 142. The first pressing portion 311 abuts against the surface of the first supporting wall 131 away from the key groove 11 by the first pressing portion 314 , and the first pressing portion 314 can be elastically deformed.

In use, the user presses the first pressing portion 311, and the first pressing portion 314 is deformed, so that the first triggering portion 313 and/or the second triggering portion 315 presses the printed circuit board 2 The button circuit 20 changes the circuit state of the button circuit 20.

Specifically, when the position pressed by the user is between the first hook portion 312 and the first pressing portion 314, the first pressing portion 314 is deformed, and the second hook portion 316 is hooked. The second side wall 13 is prevented from falling off, the first hook portion 312 and the first trigger portion 313 are moved toward the printed circuit board 2, and the first trigger portion 313 presses the button circuit 20. When the position pressed by the user is between the second hook portion 316 and the first pressing portion 314, the first pressing portion 314 is deformed, and the first hook portion 312 is hooked at the second portion. On the side wall 13, the second hook portion 316 and the second trigger portion 315 are moved toward the printed circuit board 2, and the second trigger portion 315 presses the button circuit 20. When the position pressed by the user corresponds to the first pressing portion 314, the first hook portion 312, the first trigger portion 313, the second trigger portion 315, and the second hook portion 316 are all oriented toward The printed circuit board 2 moves, and the first triggering portion 313 and the second triggering portion 315 both press the button circuit 20.

The first sub-key 31 can be used as a function key that can realize bidirectional control, such as a volume key, a brightness key, and the like. For example, the action of the first triggering unit 313 pressing the button circuit 20 may be increased (or decreased), and the action of the second triggering unit 315 pressing the button circuit 20 may be set to be reduced ( Or increase the action.

In this embodiment, the pressing connection operation between the first triggering portion 313 and the second triggering portion 315 and the printed circuit board 2 is simple, reliable, and high in accuracy, and the use of the first sub-button 31 is felt. And good performance.

It should be understood that the first hook portion 312 and the second hook portion 316 may be directly stuck on the second side wall 13 in this embodiment, or may be indirectly stuck on the second side by other parts. Wall 13.

Preferably, the first pressing portion 311 has an elongated shape, and the first pressing portion 314 has an elongated shape, and the extending direction of the first pressing portion 314 and the extending direction of the first pressing portion 311 the same. The first pressing portion 314 is pressed between the first pressing portion 311 and the first supporting wall 131.

In this embodiment, since the first pressing portion 314 has an elongated shape, and the extending direction of the first pressing portion 314 is the same as the extending direction of the first pressing portion 311, the first The sub-button 31 has better stability. At the same time, the first pressing portion 314 is pressed between the first pressing portion 311 and the first supporting wall 131, so the first pressing portion 314 faces the first pressing portion 311. The elastic force makes the first sub-button 31 have better stability.

Preferably, the first triggering portion 313 and the second triggering portion 315 are symmetrically distributed on both sides of the first pressing portion 314, so that the first sub-button 31 has better hand feeling and more control action. accurate.

Preferably, the first triggering portion 313 includes a first positioning portion 3131 and a first protective sleeve 3132 sleeved outside the first positioning portion 3131. The second triggering portion 315 includes a second positioning portion 3151 and a sleeve. A second protective cover 3152 is disposed outside the second positioning portion 3151.

In the embodiment, the first protective sleeve 3132 and the second protective sleeve 3152 can effectively prevent the first positioning portion 3131 and the second positioning portion 3151 from colliding the printed circuit board 2, thereby improving The performance reliability and service life of the button module 200.

Preferably, the first pressing portion 311, the first hook portion 312, the first positioning portion 3131, the second positioning portion 3151, and the second hook portion 316 are integrally formed, and the first portion can be improved. The alignment accuracy of the sub-button 31 and the printed circuit board 2 is high, and the assembly accuracy is high, so that the button module 200 has a good hand feeling, and the control action of the first sub-button 31 is accurate.

Preferably, the first sub-button 31 can be processed by a computer numerical control (CNC).

Preferably, the first pressing portion 314 is made of a foam material. Of course, in other embodiments, the first pressing portion 314 may also adopt other lightweight flexible materials or elastic materials.

Preferably, the first pressing portion 314 may be formed on the first pressing portion 311 in advance to simplify The assembly process of the button module 200. Of course, in other embodiments, the first pressing portion 311 may also be formed on the first supporting wall 131.

Further, please refer to FIG. 1 to FIG. 9 . As an optional implementation manner, the plurality of through holes 14 further include a third through hole 143 , a fourth through hole 144 , and a fifth through hole 145 . A second supporting wall 132 is formed between the third through hole 143 and the fourth through hole 144 , and a third supporting wall 133 is formed between the fourth through hole 144 and the fifth through hole 145 . The button (31, 32) further includes a second sub-button 32, the second sub-button 32 includes a second pressing portion 321 and a third hook portion 322 and a third portion sequentially formed on the second pressing portion 321 The triggering portion 324 and the fourth hook portion 326 are respectively formed at both ends of the second pressing portion 321 . The third hook portion 322 and the fourth hook portion 326 respectively extend into the third through hole 143 and the fifth through hole 145 and are caught on the second side wall 13 . The third triggering portion 324 corresponds to the fourth through hole 144. The second pressing portion 321 abuts the surface of the second supporting wall 132 away from the key groove 11 through the second pressing portion 323 , and abuts the third supporting wall 133 through the third pressing portion 325 . The second pressing portion 323 and the third pressing portion 325 are elastically deformable away from the surface of the key groove 11.

In use, the user presses the second pressing portion 321 , and the second pressing portion 323 and/or the third pressing portion 325 are deformed, so that the third triggering portion 324 presses the button circuit 20 . The circuit state of the button circuit 20 is changed.

Specifically, when the position pressed by the user is close to the third hook portion 322, the second pressing portion 323 is deformed (the third pressing portion 325 may simultaneously undergo small deformation or no deformation). The fourth hook portion 326 is hooked on the second side wall 13 to prevent falling off, and the third hook portion 322 and the third trigger portion 324 are moved toward the printed circuit board 2, the third The trigger unit 324 presses the button circuit 20. When the position pressed by the user is close to the fourth hook portion 326, the third pressing portion 325 is deformed (the second pressing portion 323 may simultaneously undergo little deformation or no deformation), the first The third hook portion 322 is hooked on the second side wall 13 to prevent falling off, and the fourth hook portion 326 and the third trigger portion 324 are moved toward the printed circuit board 2, and the third trigger portion 324 is pressed. The button circuit 20. When the position pressed by the user is close to the third triggering portion 324, the third hook portion 322, the third trigger portion 324, and the fourth hook portion 326 are both moved toward the printed circuit board 2, The third trigger unit 324 presses the button circuit 20.

It can be understood that, since only a single trigger portion (324) is provided, the second pressing portion 321 can be set to a small volume, and when the user presses the second pressing portion 321, the second pressing portion 323 The deformation is simultaneously performed with the third pressing portion 325, and the third trigger portion 324 presses the button circuit 20.

The second sub-button 32 can be used as a function key for enabling a single control such as a switch key or a power button. For example, the operation of the third trigger unit 324 to press the button circuit 20 can be set to an operation of turning on and off.

In the present embodiment, the pressing connection operation of the third triggering portion 324 and the printed circuit board 2 is simple, reliable, and accurate, and the second sub-button 32 has a good hand feeling and performance.

It should be understood that the third hook portion 322 and the fourth hook portion 326 may be directly stuck on the second side wall 13 in this embodiment, or may be indirectly stuck on the second side by other parts. Wall 13.

Preferably, the second pressing portion 321 has an elongated shape, and the second pressing portion 323 and the third pressing portion 325 are symmetrically distributed on both sides of the third triggering portion 324, so that the The second sub-button 32 has better stability, and has good hand feeling and accurate control action.

Preferably, the third triggering portion 324 includes a third positioning portion 3241 and a third protective sleeve 3242 that is disposed outside the third positioning portion 3241. The third protective cover 3242 can effectively prevent the third positioning portion 3241 from colliding with the printed circuit board 2, thereby improving performance reliability and service life of the button module 200.

Preferably, the second pressing portion 321 , the third hook portion 322 , the third positioning portion 3241 and the fourth hook portion 326 are integrally formed, and the second sub-button 32 and the printing can be improved. The alignment accuracy of the circuit board 2 and the assembly accuracy are high, so that the button module 200 has a good hand feeling, and the control action of the second sub-button 32 is accurate.

Preferably, the second sub-button 32 can be processed by a computer numerical control (CNC).

Preferably, the second pressing portion 323 and the third pressing portion 325 each adopt a foam material. Of course, in other embodiments, the second pressing portion 323 and the third pressing portion 325 may also adopt other lightweight flexible materials or elastic materials.

Preferably, the second pressing portion 323 and the third pressing portion 325 may be formed on the second pressing portion 321 in advance to simplify the assembly process of the button module 200. Of course, in other embodiments, the second pressing portion 323 and the third pressing portion 325 may also be formed on the second supporting wall 132 and the third supporting wall 133, respectively.

Further, please refer to FIG. 1 to FIG. 11 together. As an optional implementation manner, the button module 200 further includes a card clip 4 including opposite first walls 41 and second. a wall 42, the first wall 41 pressing against the printed circuit board 2, pressing the printed circuit board 2 against the first side wall 12, and the second wall 42 pressing against the second side Wall 13.

In the embodiment, the card holder 4 presses the printed circuit board 2 against the first side wall 12, so that the printed circuit board 2 does not occur due to shaking or the like during normal use. The damage of the printed circuit board 2 is strong.

Preferably, the second wall 42 of the card clip 4 includes a first latching portion 421, and the first latching portion 421 covers a portion of the second through hole 142 to catch the second hook portion 316. . When the first sub-button 31 is assembled, the first hook portion 312 is first passed through the first through hole 141, and the first hook portion 312 is stuck on the second sidewall 13 (this The portion of the second sidewall 13 is located in a space between the first hook portion 312 and the first pressing portion 311, and the second hook portion 316 is further passed through the second through hole 142. Then, the first latching portion 421 is partially extended into the space between the second hook portion 316 and the first pressing portion 311 (at this time, the first latching portion 421 covers a portion of the second portion) The through hole 142) is to catch the second hook portion 316. The arrangement of the card clip 4 reduces the assembly difficulty of the first sub-button 31.

Preferably, the second wall 42 of the card clip 4 further includes a second latching portion 422, and the second latching portion 422 covers a portion of the third through hole 143 to catch the third hook portion. 322. When the second sub-button 32 is assembled, the fourth hook portion 326 is first passed through the fifth through hole 145, and the fourth hook portion 326 is stuck on the second side wall 13 (this The portion of the second sidewall 13 is located in a space between the fourth hook portion 326 and the second pressing portion 321 , and the third hook portion 322 is further passed through the third through hole 143 . Then, the second latching portion 422 is partially extended into the space between the third hook portion 322 and the second pressing portion 321 (at this time, the second latching portion 422 covers a portion of the third portion) The through hole 143) is to catch the third hook portion 322. The arrangement of the card clip 4 reduces the assembly difficulty of the second sub-button 32.

In this embodiment, the card clip 4 can simultaneously hook the first sub button 31 and the second sub button 32, shortening between the first sub button 31 and the second sub button 32. The spacing is beneficial to the miniaturization of the button module 200. At the same time, the fixing actions of the first sub-button 31 and the second sub-button 32 can also be implemented at one time, which simplifies the assembly process of the button module 200 and reduces the production cost.

Preferably, the card clip 4 further includes a connecting portion 43 connected between the first wall 41 and the second wall 42. As shown in FIG. 10, the first wall 41, the connecting portion 43, and the second wall 42 may collectively form a U-like structure. At the same time, the card position clip 4 can adopt an elastic material. When the card position clip 4 is placed in the key groove 11 of the housing 1 and the card position clip 4 is pressed, the first The wall 41 applies an elastic force to the printed circuit board 2, and the second wall 42 applies an elastic force to the second side wall 13 such that the card clip 4 and the printed circuit board 2 are fixed in the Inside the key slot 11.

Further, please refer to FIG. 1 to FIG. 12 together. As a preferred embodiment, the third through hole 143 is disposed adjacent to the second through hole 142, and the plurality of through holes 14 are along the first direction. Arranging, at this time, the first sub-key 31 and the second sub-key 32 are arranged side by side, and the card clip 4 is disposed between the first sub-key 31 and the second sub-key 32. The first latching portion 421 is disposed opposite to the second latching portion 422.

Of course, in other embodiments, the plurality of through holes 14 may have other arrangement manners. For example, the first sub-button 31 and the second sub-button 32 may be stacked.

Preferably, the housing 1 can be processed by a computer numerical control (CNC) to improve assembly precision.

Preferably, the printed circuit board 2 includes a first switch 21, a second switch 22, and a third switch 23 arranged in sequence along the first direction, the button circuit 20 electrically connecting the first switch 21, the The second switch 22 and the third switch 23. The first switch 21, the second switch 22, and the third switch 23 are in one-to-one correspondence with the first triggering portion 313, the second triggering portion 315, and the third triggering portion 324, such that the first triggering portion 313. The second triggering unit 315 and the third triggering unit 324 are capable of changing the circuit state of the printed circuit board 2 by itself.

Referring to FIG. 1 to FIG. 13 , the embodiment of the present application further provides a mobile terminal 100 including a first housing, a second housing 5 , and a button module 200 according to any of the above embodiments. The housing 1 of the button module 200 is formed on the first housing, that is, the housing 1 is a part of the first housing. The second housing 5 is connected to the first housing to close the key groove 11. The button module 200 of the mobile terminal 100 has a good hand feeling, and the buttons (31, 32) control the movement accurately.

The mobile terminal 100 includes, but is not limited to, a mobile phone, a notebook, a tablet, a POS, an onboard computer, a camera, and the like.

Preferably, the first housing and the second housing 5 can be processed by a computer numerical control (CNC) to improve assembly precision.

Preferably, a seal 6 is provided at the junction of the first housing and the second housing 5. In this embodiment, since the rib position of the key groove 11 of the housing 1 is flat, a gap is easily formed at the connection between the second housing 5 and the first housing. The gap is sealed by providing the sealing member 6 at the junction of the first housing and the second housing 5, so that the mobile terminal 100 has a waterproof function, in particular, the button module 200 is located The area is water resistant.

Preferably, the sealing member 6 is made of a waterproof foam material.

The embodiments of the present application have been described in detail above. The principles and implementations of the present application are described in the specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present application. A person skilled in the art will have a change in the specific embodiments and the scope of the application according to the idea of the present application. In summary, the content of the present specification should not be construed as limiting the present application.

Claims

A button module, comprising:

a housing having a button slot therein, the button slot having an opposite first side wall and a second side wall, the second side wall having a plurality of spaced through holes for communicating the case The outside of the body and the button slot;

a printed circuit board received in the button slot, wherein the printed circuit board is provided with a button circuit;

a button, comprising a pressing portion located outside the housing, and a trigger portion extending into the key groove through the plurality of through holes to trigger the button circuit, the trigger portion for receiving the pressing portion The pressing force is transmitted to the button circuit.
The button module according to claim 1, wherein the plurality of through holes comprise a first through hole and a second through hole, and the first through hole and the second through hole form a first support wall;

The button includes a first sub-button, and the first sub-button includes a first pressing portion and a first hook portion and a second hook portion respectively formed at two ends of the first pressing portion, the first hook portion and the The second hook portion protrudes into the first through hole and the second through hole respectively and is caught on the second side wall, and the first pressing portion abuts to the first portion through the first pressing portion The first pressing portion of the supporting wall is elastically deformable away from the surface of the key groove.
The button module according to claim 1, wherein the plurality of through holes comprise a third through hole, a fourth through hole and a fifth through hole, and the third through hole and the fourth through hole Forming a second supporting wall, a third supporting wall is formed between the fourth through hole and the fifth through hole;

The button includes a second sub-button, and the second sub-button includes a second pressing portion and a third hook portion and a fourth hook portion respectively formed at two ends of the second pressing portion, the third hook portion and the The fourth hook portion extends into the third through hole and the fifth through hole respectively and is caught on the second side wall, and the second pressing portion abuts the second through the second pressing portion The surface of the support wall that is away from the surface of the button slot and abuts the surface of the third support wall away from the button slot by a third pressing portion, the second pressing portion and the third pressing portion Both can be elastically deformed.
The button module according to claim 1, wherein the plurality of through holes comprise a first through hole and a second through hole, and the first through hole and the second through hole form a first support wall;

The button includes a first sub-button, the first sub-button includes a first pressing portion and is formed respectively a first hook portion and a second hook portion at the two ends of the first pressing portion, the first hook portion and the second hook portion respectively extending into the first through hole and the second through hole and being stuck The first pressing portion abuts against a surface of the first supporting wall away from the key groove by the first pressing portion, and the first pressing portion can be elastically deformed;

The plurality of through holes further includes a third through hole, a fourth through hole, and a fifth through hole, and a second supporting wall is formed between the third through hole and the fourth through hole, the fourth through hole Forming a third support wall with the fifth through hole;

The button further includes a second sub-button, the second sub-button includes a second pressing portion and a third hook portion and a fourth hook portion respectively formed at two ends of the second pressing portion, the third hook portion and The fourth hook portion protrudes into the third through hole and the fifth through hole respectively and is caught on the second side wall, and the second pressing portion abuts the first through the second pressing portion a surface of the second supporting wall that is away from the surface of the button slot and abuts the surface of the third supporting wall away from the button slot by a third pressing portion, the second pressing portion and the third pressing portion The parts are all elastically deformable.
The key module of claim 4, wherein the button module further comprises a card clip, the card clip includes opposing first and second walls, the first wall pressing the printing a circuit board, the second wall pressing against the second side wall.
The button module according to claim 5, wherein the second wall comprises a first card portion and a second card portion, and the first card portion covers a portion of the second through hole for card The second hook portion covers the third through hole to catch the third hook portion.
A key module according to claim 5 or 6, wherein said card clip further comprises a connecting portion connected between said first wall and said second wall.
The button module according to any one of claims 4 to 7, wherein the third through hole is disposed adjacent to the second through hole, and the plurality of through holes are arranged in a first direction;

The printed circuit board includes a first switch, a second switch, and a third switch that are sequentially arranged along the first direction, and one-to-one corresponding to the first triggering portion, the second triggering portion, and the third triggering portion.
The button module according to any one of claims 2 to 4, wherein the first sub-button further includes a first trigger portion and a second trigger portion formed on the first pressing portion The first triggering portion and the second triggering portion respectively correspond to the first through hole and the second through hole, and the first triggering portion and/or the first triggering portion is pressed by pressing the first pressing portion The second triggering unit presses the button circuit.
The button module according to any one of claims 2 to 4, wherein the first pressing portion has an elongated shape, and the first pressing portion has an elongated shape, the first The extending direction of the pressing portion is the same as the extending direction of the first pressing portion.
The button module according to claim 9 or 10, wherein the first triggering portion and the second triggering portion are symmetrically distributed on both sides of the first pressing portion.
The button module according to any one of claims 9 to 11, wherein the first triggering portion includes a first positioning portion and a first protective sleeve sleeved outside the first positioning portion, the first The second triggering portion includes a second positioning portion and a second protective sleeve sleeved outside the second positioning portion.
The button module according to claim 12, wherein the first pressing portion, the first hook portion, the first positioning portion, the second positioning portion, and the second hook portion are integrally formed .
The button module according to any one of claims 3-8, wherein the second sub-button further includes a third triggering portion, the third triggering portion is formed on the second pressing portion and corresponds to the The fourth through hole is configured to press the third trigger portion to press the button circuit by pressing the second pressing portion.
The button module according to any one of claims 3-8, wherein the second pressing portion has an elongated shape, and the second pressing portion and the third pressing portion are symmetric. The ground is distributed on both sides of the third trigger portion.
The button module according to claim 14 or 15, wherein the third triggering portion comprises a third positioning portion and a third protective sleeve sleeved outside the third positioning portion.
The button module according to claim 16, wherein the second pressing portion, the third hook portion, the third positioning portion, and the fourth hook portion are integrally formed.
A mobile terminal, comprising: a first housing, a second housing, and the button module according to any one of claims 1 to 17, wherein the housing of the button module is formed at the first On the housing, the second housing is coupled to the first housing to close the button slot.
The mobile terminal of claim 18, wherein a seal is provided at a junction of the first housing and the second housing.