CN111668051A

CN111668051A - Key module and electronic equipment

Info

Publication number: CN111668051A
Application number: CN202010600176.6A
Authority: CN
Inventors: 黄宏东
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2020-09-15

Abstract

The application provides a key module and electronic equipment. The key module comprises a first support. Locate the sealed bonding piece of first support one side, sealed bonding piece bonds first support, and has seted up first through-hole and exposed part first support on the sealed bonding piece. The second bracket is arranged on one side of the sealing bonding piece, which is far away from the first bracket, the second bracket is bonded with the sealing bonding piece, and a second through hole communicated with the first through hole is formed in the second bracket; the first bracket, the sealing adhesive member, and the second bracket form an isolation space. And part of the keys penetrate through the second through holes and are arranged in the first through holes, and the keys can move towards or away from the first support. The sealing bonding piece is additionally arranged between the first support and the second support, so that the sealing performance of the key module is improved. And secondly, the occupied space of the key module in the electronic equipment can be reduced, and the assembly space of the electronic equipment is saved. In addition, the assembly degree of the key module is higher, and the assembly efficiency of a terminal manufacturer is improved.

Description

Key module and electronic equipment

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to a key module and electronic equipment.

Background

With the continuous development of electronic devices, electronic devices are now popular with users due to their portability and rich and varied operability. But at the same time, the expectations and requirements of users for electronic devices are also increasing. For example, electronic devices often have depressible side keys that when depressed by a user can perform the corresponding function. However, because the side keys are movable, a gap exists between the side keys and the middle frame of the electronic device, and impurities such as water or dust can enter the side keys through the gap and enter the electronic device. The provision of the side keys reduces the sealing performance of the electronic device.

Disclosure of Invention

In view of this, the first aspect of the present application provides a key module, including:

a first bracket;

the sealing bonding piece is arranged on one side of the first support, is bonded with the first support, and is provided with a first through hole to expose part of the first support;

the second support is arranged on one side, away from the first support, of the sealing bonding piece, the second support is bonded with the sealing bonding piece, and a second through hole communicated with the first through hole is formed in the second support; the first bracket, the sealing adhesive member, and the second bracket form an isolation space; and

and part of the key penetrates through the second through hole and is arranged in the first through hole, and the key can move towards or away from the first support.

The utility model provides a key module, through add sealed bonding piece between first support and second support, make sealed bonding piece bond first support and second support to set up first through-hole and second through-hole on sealed bonding piece and second support, first support like this, sealed bonding piece and second support alright form the isolation space. When water enters the isolation space from the gap between the key and the second support, the first support and the second support are well sealed and bonded by the sealing bonding piece, so that water only can reside in the isolation space or flows out of the second through hole to the outside again, the isolation space cannot continue to flow to the electronic equipment to damage the electronic equipment, and the sealing performance of the key module is improved.

Secondly, the key module that this application first aspect provided simple structure only needs a small amount of parts alright realize good sealed effect. And the occupied space of the key module in the electronic equipment can be reduced, and the assembly space of the electronic equipment is saved. In addition, its assembly degree of the button module that this application first aspect provided is higher, after the terminal manufacturer takes the button module, only need directly with the button module install to the center on can, improved terminal manufacturer's assembly efficiency.

A second aspect of the present application provides an electronic device, which includes a middle frame and a key module as provided in the first aspect of the present application, where the key module is connected to the middle frame; the middle frame comprises a body and an extension part connected with the periphery of the body in a bending mode, a fourth through hole is formed in the extension part, and the key penetrates through the fourth through hole.

The electronic equipment that this application second aspect provided through the button module that adopts the first aspect to provide, through add sealed bonding member between first support and second support to thereby make water can not follow the separation space and continue to flow to electronic equipment content and destroy electronic equipment, improved electronic equipment's sealing performance.

Drawings

In order to more clearly explain the technical solution in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic structural diagram of a key module according to an embodiment of the present disclosure.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a sectional view taken along a-a in fig. 1.

Fig. 4 is a schematic cross-sectional view of a key module according to another embodiment of the present disclosure.

Fig. 5 is a schematic cross-sectional view of a key module according to another embodiment of the present application.

Fig. 6 is a schematic cross-sectional view of a key module according to another embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of a key module according to another embodiment of the present application.

Fig. 8 is a schematic cross-sectional view of a key module according to another embodiment of the present application.

Fig. 9 is a schematic view illustrating the movable portion of fig. 8 moving toward the first bracket.

Fig. 10 is a schematic cross-sectional view of a key module according to another embodiment of the present application.

Fig. 11 is a schematic cross-sectional view of a key module according to another embodiment of the present application.

Fig. 12 is a schematic structural diagram of a key module according to another embodiment of the present application.

Fig. 13 is a schematic structural diagram of a second bracket according to an embodiment of the present application.

Fig. 14 is a schematic cross-sectional view of a key module according to another embodiment of the present application.

Fig. 15 is a schematic partial structure diagram of an electronic device according to an embodiment of the present application.

Fig. 16 is a top view of fig. 15.

Fig. 17 is an exploded view of fig. 15.

Fig. 18 is a schematic cross-sectional view taken along the direction B-B in fig. 16.

Fig. 19 is an exploded view of an electronic device according to another embodiment of the present disclosure.

Fig. 20 is a schematic partial cross-sectional view of an electronic device in another embodiment of the present application.

Fig. 21 is a schematic partial cross-sectional view of an electronic device in accordance with yet another embodiment of the present application.

Fig. 22 is a schematic partial cross-sectional view of an electronic device in accordance with yet another embodiment of the present application.

Description of reference numerals:

a key module-1, an electronic device-2, a middle frame-3, a body-4, an extension part-5, a fourth through hole-6, a containing space-7, an avoiding groove-8, a first support-10, a groove-11, a bottom wall-12, a side wall-13, a second support-20, a second through hole-21, an isolation space-22, a sealing adhesive part-30, a first through hole-31, a first sub sealing adhesive part-32, a second sub sealing adhesive part-33, a third through hole-34, a key-40, a key body-41, a buckling part-42, an electric connector-50, a first end-51, a second end-52, a connecting part-53, a movable part-54, a support part-60 and a screw-70, a first positioning part-71, a second positioning part-72, an elastic piece-80, an elastic piece body-81, a matching part-82 and a bonding piece-83.

Detailed Description

The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Before the technical solutions of the present application are introduced, the technical problems in the related art will be described in detail.

Electronic devices typically have a plurality of physical keys, which may be disposed on the front of the electronic device, for example, as numeric keys or main screen keys, etc., or disposed on the side of the electronic device, for example, as side keys, etc. The application takes the key as a side key of the electronic device for illustration. When a user presses the side key, corresponding functions can be triggered, such as screen locking, screen unlocking, volume adjustment, startup and shutdown and other operations. Since the side key needs to be pressed, it is necessary to ensure that the side key is movable, so that a gap exists between the side key and a middle frame provided with the side key. And impurities such as water or dust can enter the side keys through the gap and enter the interior of the electronic equipment. The provision of the side keys reduces the sealing performance of the electronic device.

At present, in order to improve the sealing performance of electronic equipment, a key module is designed by people, namely a plurality of supports are arranged on one side of a key, each support is used for limiting the different directions of the key, and sealing components are arranged at other positions. Although the sealing effect is achieved, firstly, the key module has more parts and lower assembly degree, a supplier only provides the parts for a terminal manufacturer, and the terminal manufacturer is required to assemble the parts to different areas of the middle frame, so that the assembly difficulty of the terminal manufacturer is greatly increased, and the assembly efficiency is reduced. Secondly, the key module occupies more internal space of the electronic equipment, and a large amount of assembly space is wasted.

In view of the above, the present application provides a key module for solving the above problems. Please refer to fig. 1-3 together. Fig. 1 is a schematic structural diagram of a key module according to an embodiment of the present disclosure. Fig. 2 is an exploded view of fig. 1. Fig. 3 is a sectional view taken along a-a in fig. 1. The present embodiment provides a key module 1, which includes a first support 10. The sealing adhesive member 30 is disposed on one side of the first bracket 10, the sealing adhesive member 30 adheres to the first bracket 10, and the sealing adhesive member 30 is provided with a first through hole 31 to expose a portion of the first bracket 10. The second bracket 20 is arranged on one side, away from the first bracket 10, of the sealing bonding piece 30, the second bracket 20 is bonded with the sealing bonding piece 30, and a second through hole 21 communicated with the first through hole 31 is formed in the second bracket 20; the first bracket 10, the sealing adhesive member 30, and the second bracket 20 form an insulation space 22. And the key 40, a part of the key 40 penetrates through the second through hole 21 and is arranged in the first through hole 31, and the key 40 can move towards or away from the first support 10.

The first bracket 10 and the second bracket 20 provided in this embodiment can serve as a substrate, and have supporting and bearing functions, so as to provide a mounting base for other components of the key module 1. As can be seen from the above, the related art generally installs the sealing member at another position of the electronic device 2, which results in high assembly difficulty and large space occupation. In the present embodiment, the sealing adhesive member 30 is disposed between the first bracket 10 and the second bracket 20, and the sealing adhesive member 30 is adhered to the first bracket 10 and the second bracket 20, respectively, so that the sealing adhesive member 30, the first bracket 10, and the second bracket 20 are integrated. Optionally, the seal adhesive 30 includes, but is not limited to, double sided tape.

In this embodiment, the sealing adhesive 30 may be provided with a first through hole 31, and the second holder 20 may be provided with a second through hole 21 communicating with the first through hole 31. Thus, the first bracket 10, the sealing adhesive member 30, and the second bracket 20 form an isolated space 22. It can also be understood that the isolation space 22 is formed by combining the first through hole 31 of the sealing adhesive member 30, the second through hole 21 of the second bracket 20, and the first bracket 10, and the size of the isolation space 22 is the sum of the sizes of the first through hole 31 and the second through hole 21. Then, a part of the key 40 may be passed through the second through hole 21 and disposed in the first through hole 31, and the remaining part of the case is outside the second through hole 21. And the keys 40 are movable towards and away from the first support 10 (direction D in fig. 3) for subsequent fitting to the middle frame 3 for pressing by a user. Alternatively, the key 40 may be moved along a direction perpendicular to the surface of the first support 10 on which the sealing connection is provided. Since the key 40 needs to move, a gap exists between the key 40 and the second support 20, and thus when water enters the isolation space 22 from the gap between the key 40 and the second support 20, since the sealing adhesive member 30 has already performed good sealing adhesion between the first support 10 and the second support 20, the water only resides in the isolation space 22 or flows out again from the second through hole 21 to the outside, and does not continue to flow to the electronic device 2 from the isolation space 22 to destroy the electronic device 2, thereby improving the sealing performance of the key module 1. Optionally, the waterproof level of the key module 1 provided by this embodiment may reach IPX 8. Wherein, the waterproof grade of IPX8 means that the button module 1 and the electronic equipment 2 are not affected and do not leak water when soaked for 30 minutes in a water depth of more than 1.5 meters.

Secondly, in the present embodiment, the first support 10, the second support 20, the sealing adhesive member 30, and the key 40 can be integrated together by the above structure, so that the structure of the module is simplified, and a good sealing effect can be achieved with a small number of parts. And still can reduce the occupation space of button module 1 in electronic equipment 2, save electronic equipment 2's assembly space, reduce the degree of difficulty that detects the whole leakproofness of button module 1. In addition, the key module 1 provided by the embodiment has high assembly degree, the assembly parts and the sealing parts of the keys 40 are assembled in a supplier system, and after a terminal manufacturer takes the key module 1, the terminal manufacturer only needs to directly install the key module 1 on the middle frame 3, so that the assembly difficulty of the terminal manufacturer is reduced, and the assembly efficiency is improved.

Please refer to fig. 4. Fig. 4 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present disclosure. In this embodiment, the key module 1 further includes an electrical connector 50, the electrical connector 50 includes a first end 51 and a second end 52 that are disposed opposite to each other, the first end 51 is disposed in the isolation space 22 and connected to the key 40, and the second end 52 penetrates through the sealing adhesive 30.

As can be seen from the above, when the user presses the key 40, the corresponding operation can be performed on the electronic device 2. Therefore, the present application can add the electrical connector 50 in the key module 1, and the first end 51 is disposed in the isolated space 22 and connected to the key 40, and the second end 52 is disposed outside the isolated space 22 through the sealing adhesive 30. When the key 40 is pressed, the generated pressing signal is conducted from the first end 51 inside the isolated space 22 to the second end 52 outside the isolated space 22, and then only the second end 52 is electrically connected to a Printed Circuit Board (PCB) and electrically connected to a processor, so as to perform corresponding operations. Alternatively, the electrical connector 50 provided in the present embodiment includes, but is not limited to, a Flexible Printed Circuit Board (FPCB). Optionally, the key module 1 has a function of fingerprint identification in addition to a function of pressing and triggering corresponding operations.

In order to realize that the second end 52 penetrates the sealing adhesive 30 without affecting the sealing performance of the key module 1, the present embodiment provides two implementation manners. Please refer to fig. 5. Fig. 5 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present application. In this embodiment, the sealing adhesive member 30 includes a first sub sealing adhesive member 32 and a second sub sealing adhesive member 33 adhered to each other, the electrical connector 50 further includes a connecting portion 53 connecting the first end 51 and the second end 52, and a portion of the connecting portion 53 is disposed between the first sub sealing adhesive member 32 and the second sub sealing adhesive member 33.

In one implementation provided herein, the seal bonding element 30 includes a first sub-seal bonding element 32 and a second sub-seal bonding element 33 bonded to each other, and it is also understood that the seal bonding element is formed by combining two first sub-seal bonding elements 32 and two second sub-seal bonding elements 33 which are hermetically connected together. Optionally, the first sub-seal adhesive 32 and the second sub-seal adhesive 33 are in interference fit to further improve the sealing bonding effect of the first sub-seal adhesive 32 and the second sub-seal adhesive 33.

The electrical connector 50 includes a connection portion 53 connecting the first end 51 and the second end 52, in addition to the first end 51 and the second end 52 at both ends. In this embodiment, a part of the connection portion 53 may be interposed between the first sub-seal adhesive member 32 and the second sub-seal adhesive member 33. The difficulty in assembling the electrical connection portion 53 and the seal adhesive 30 can be reduced by providing the split seal adhesive 30. The second end 52 is first disposed outside the isolation space 22, a part of the electrical connection portion 53 is disposed between the first sub-sealing adhesive member 32 and the second sub-sealing adhesive member 33, and then the first sub-sealing adhesive member 32, the second sub-sealing adhesive member 33, and the electrical connection portion 53 are sealed and bonded together, so that the second end 52 can penetrate through the sealing adhesive member 30 without affecting the sealing performance of the key module 1.

Please refer to fig. 6. Fig. 6 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present application. In this embodiment, the sealing adhesive member 30 is provided with a third through hole 34 communicating with the first through hole 31, the electrical connector 50 penetrates through the third through hole 34, and the sealing adhesive member 30 and the electrical connector 50 are in interference fit.

In another implementation manner provided by the present application, the sealing adhesive member 30 may be an integral structure, but in this embodiment, the first sealing adhesive member 30 may be provided with a third through hole 34 communicating with the first through hole 31, and then the second end 52 may be passed through the sealing adhesive member 30 only by passing the electrical connector 50 through the third through hole 34. In addition, the seal adhesive 30 in the present embodiment has elasticity, and the seal adhesive 30 is interference-fitted with the electric connector 50. The interference fit means that the size of the third through hole 34 is originally smaller than that of the electrical connector 50, but when the electrical connector 50 penetrates through the third through hole 34, the third through hole 34 is expanded and deformed to fit over the electrical connector 50 by the elasticity of the sealing adhesive 30. When the hole is restored, a clamping force to the sealing adhesive member 30 is generated so that the sealing adhesive member 30 is connected with the electrical connector 50, thereby further improving the sealing performance of the key module 1 and preventing water from flowing out from the third through hole 34.

Please refer to fig. 7. Fig. 7 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present application. In this embodiment, the opening size of the third through hole 34 close to the key 40 is larger than the opening size of the third through hole 34 far from the key 40.

On the basis of forming the third through hole 34, in this embodiment, the opening size of the third through hole 34 close to the key 40 may be larger than the opening size of the third through hole 34 far from the key 40. It is also understood that the size of the third through hole 34 on the side near the insulation space 22 is larger than the size of the third through hole 34 on the side away from the insulation space 22. This reduces the difficulty of the electrical connector 50 penetrating the third through hole 34. Optionally, the size of the third through hole 34 gradually decreases from the opening size at the side close to the key 40 to the opening size at the side far from the key 40

Please refer to fig. 8-9 together. Fig. 8 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present application. Fig. 9 is a schematic view illustrating the movable portion 54 of fig. 8 moving toward the first carriage 10. In this embodiment, a movable portion 54 is disposed on a side of the first end 51 away from the key 40, the movable portion 54 abuts against the first bracket 10, and the movable portion 54 can move toward or away from the key 40.

The above describes that when the user presses the key 40, a pressing signal is generated and finally transmitted from the first end 51 to the process to perform the corresponding operation. The present embodiment will describe how the key module 1 generates the pressing signal.

In the present embodiment, a movable portion 54 may be provided on a side of the first end 51 facing away from the key 40, the movable portion 54 may be brought into contact with the first bracket 10, and the movable portion 54 may be moved toward or away from the key 40 (direction indicated by D in fig. 8 and 9). As shown in fig. 9, when the user presses the key 40, the key 40 moves toward the first frame 10, and the movement of the key 40 drives the movable portion 54 on the first end 51 to move together, and the movable portion 54 can move toward the key 40 and be accommodated in the first end 51. A pressure sensor may be disposed in the first end 51, and when the movable portion 54 moves, a certain pressure is generated and received by the pressure sensor, and the pressure sensor generates a pressing signal. Fig. 8 can be seen as the movement of the movable portion 54 away from the first support 10. When the user finishes pressing, the movable portion 54 can move away from the key 40 and is disposed outside the first end 51 again, and the movement of the movable portion 54 can drive the key 40 to move away from the first bracket 10, at this time, the pressure becomes zero, and the pressure sensor does not generate a pressure signal. Optionally, the key module 1 may further implement functions such as pressure fingerprint identification and touch operation according to the pressed position, the pressure magnitude, the direction, the time and other factors.

Please refer to fig. 10. Fig. 10 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present application. In this embodiment, the first bracket 10 is provided with a groove 11, and a part of the movable portion 54 is disposed in the groove 11.

In the present embodiment, the first bracket 10 may be provided with the recess 11, and the partial movable portion 54 may be disposed in the recess 11. The first support 10 can also play a role in limiting the relative movement of the movable part 54. It can also be understood that when the movable portion 54 abuts on the surface of the first frame 10, the movable portion 54 cannot move freely, the position of the movable portion 54 in the direction is limited, and the bottom wall 12 of the first frame 10 forming the groove 11 can perform the same function. The same is understood with respect to the side wall 13 of the first holder 10 forming the recess 11, and the side wall 13 is used to limit the position of the movable portion 54 in the other direction, thereby making the key module 1 more compact to assemble.

Please refer to fig. 11. Fig. 11 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present application. In the present embodiment, the bottom wall 12 and the side wall 13 of the first bracket 10, in which the recess 11 is opened, are connected to the movable portion 54.

In this embodiment, the bottom wall 12 and the side wall 13 may be connected to the movable portion 54, that is, the size of the groove 11 is matched with the size of the movable portion 54, and a part of the movable portion 54 may be disposed in the groove 11, so that the groove 11 may be utilized to effectively limit the moving direction of the movable portion 54, and the movable portion 54 may only move towards or away from the key 40, thereby further improving the tightness of the key module 1. Optionally, the bottom wall 12 and the side wall 13 of the first bracket 10, which open the recess 11, abut against the movable portion 54.

Please refer to fig. 12-13 together. Fig. 12 is a schematic structural diagram of a key module 1 according to another embodiment of the present application. Fig. 13 is a schematic structural diagram of the second bracket 20 according to an embodiment of the present application. In this embodiment, the key module 1 further includes a supporting member 60, the supporting member 60 is disposed between the first bracket 10 and the second bracket 20, and the supporting member 60 is used for supporting the first bracket 10 and the second bracket 20.

The present application may further add a support member 60 to the first bracket 10 and the second bracket 20. Alternatively, the supporting member 60 may be a part of the first frame 10 or a part of the second frame 20, and of course, the supporting member 60 may also be an additional component of the key module 1, and the supporting member 60 is only disposed between the first frame 10 and the second frame 20. As shown in fig. 13, the present embodiment is illustrated with a support 60 as a part of the second bracket 20.

As can be seen from the above, the seal adhesive 30 is supported on the first bracket 10, and the second bracket 20 is supported on the seal adhesive 30. When the three are assembled, the second bracket 20 may be over-assembled to cause an over-pressure problem, resulting in over-bonding of the second bracket 20 and the seal adhesive 30, so that the size of the seal adhesive 30 is reduced, and thus the size of the isolation space 22 is reduced. The dimensions of the keys 40 and the electrical connections 50 are fixed. Therefore, when the size of the isolation space 22 is reduced, the movable portion 54 is moved toward the key 40 in the initial state, i.e., the state in which the user has not pressed yet, and the user has generated the pressing signal when the key 40 and the electrical connector 50 are assembled. If the degree of the movement is serious, the movable portion 54 cannot be moved at all, and the user cannot perform the pressing operation. Therefore, in the present application, by additionally providing the supporting member 60, the supporting member 60 can be used to support the first bracket 10 and the second bracket 20, and the supporting member 60 can also control the distance between the first bracket 10 and the second bracket 20 by controlling the size of the supporting member 60 itself, so as to prevent the problem that the sealing adhesive member 30 is over-pressurized, effectively control the size of the isolation space 22, and reserve a space for the movable portion 54 to move.

Please refer to fig. 14. Fig. 14 is a schematic cross-sectional view of a key module 1 according to another embodiment of the present application. In this embodiment, the key 40 includes a key body 41 and a fastening portion 42 disposed on a periphery of the key body 41, the fastening portion 42 is disposed in the isolation space 22, and the fastening portion 42 can abut against the second bracket 20.

The key 40 in this embodiment includes a key body 41 and a locking portion 42. The key body 41 is used for a user to press, and the key body 41 is further used for connecting the first end 51. The buckling part 42 is used for abutting against the second bracket 20 and can play a role in limiting so as to prevent the key 40 from falling out of the second through hole 21 in the moving process and improve the stability of the key 40.

Referring to fig. 14 again, in the present embodiment, an orthogonal projection of the second through hole 21 on the first bracket 10 is located in an orthogonal projection of the first through hole 31 on the first bracket 10.

In order to allow the engaging portion 42 to abut against the second bracket 20, the present embodiment may position an orthogonal projection of the second through hole 21 on the first bracket 10 within an orthogonal projection of the first through hole 31 on the first bracket 10. It is also understood that the second through-hole 21 is disposed just corresponding to the first through-hole 31, and the size of the second through-hole 21 is smaller than that of the first through-hole 31. Thus, a step structure is formed between the second bracket 20 and the sealing connection member, and the fastening portion 42 can abut against the step surface of the step structure. Alternatively, the second through hole 21 coincides with the center of the first through hole 31, and the size of the second through hole 21 is smaller than that of the first through hole 31, so that the periphery of the second bracket 20 forms a step structure, and the buckling part 42 can be better abutted.

Please refer to fig. 15-18. Fig. 15 is a partial structural schematic diagram of the electronic device 2 according to an embodiment of the present application. Fig. 16 is a top view of fig. 15. Fig. 17 is an exploded view of fig. 15. Fig. 18 is a schematic cross-sectional view taken along the direction B-B in fig. 16. The embodiment provides an electronic device 2, the electronic device 2 includes a middle frame 3 and a key module 1 provided as the above embodiment of the present application, and the key module 1 is connected to the middle frame 3. The middle frame 3 comprises a body 4 and an extension part 5 connected with the periphery of the body 4 in a bending mode, a fourth through hole 6 is formed in the extension part 5, and the key 40 penetrates through the fourth through hole 6.

The electronic device 2 provided by the present application includes, but is not limited to, a mobile terminal such as a mobile phone, a tablet Computer, a notebook Computer, a palmtop Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and a fixed terminal such as a Digital TV, a desktop Computer, and the like.

In this embodiment, the key module 1 may be connected to the middle frame 3, and then the keys 40 in the key module 1 penetrate through the fourth through hole 6, so that some of the keys 40 are disposed outside the middle frame 3 for the user to press. It can also be understood that the main body 4 and the extension portion 5 enclose a receiving space 7, and a part of the key module 1 is disposed in the receiving space 7. The key 40 penetrates through the fourth through hole 6 to extend out of the middle frame 3. The electronic device 2 provided by the present application, through adopting the key module 1 provided by the above embodiment of the present application, by additionally providing the sealing adhesive member 30 between the first support 10 and the second support 20, water does not continuously flow from the isolation space 22 to the electronic device 2, thereby destroying the electronic device 2, and improving the sealing performance of the electronic device 2.

Referring to fig. 18 again, in the present embodiment, an avoiding groove 8 is formed on the body 4, and a portion of the electrical connector 50 is disposed in the avoiding groove 8.

As can be appreciated from the above, the electrical connector 50 can extend through the sealing adhesive 30 such that the second end 52 is disposed outside the isolated space 22, and the second end 52 can be used to electrically connect the printed circuit board. The electrical connector 50 presents a certain bending area since the second end 52 needs to be modified just after penetration into the hermetic connector to make a better electrical connection to the printed circuit board. Therefore, in the present embodiment, the body 4 is provided with the avoiding groove 8, and the bending region of the electrical connector 50 is accommodated by the avoiding groove 8, so that the electrical connector 50 can be bent more preferably.

Please refer to fig. 19. Fig. 19 is an exploded view of an electronic device 2 according to another embodiment of the present disclosure. In this embodiment, the first bracket 10 is provided with a first positioning portion 71, the body 4 or the extension portion 5 is provided with a second positioning portion 72, and the first positioning portion 71 and the second positioning portion 72 are matched with each other to connect the key module 1 to the middle frame 3.

As can be seen from the above, the key module 1 is connected to the middle frame 3. Alternatively, the key module 1 may be connected to the body 4, and the key module 1 may also be connected to the extension portion 5. The present embodiment is illustrated by the key module 1 being connected to the main body 4. Specifically, in the present embodiment, the first positioning portion 71 and the second positioning portion 72 can cooperate with each other to connect the key module 1 to the middle frame 3. The first positioning portion 71 and the second positioning portion 72 can be connected in various ways. Alternatively, the first positioning portion 71 and the second positioning portion 72 may be connected by screws. For example, through holes are provided on the first positioning portions 71, threaded holes are provided on the body 4, and screws 70 are inserted through the through holes and the threaded holes on the body 4 to realize screw connection, so that the key module 1 is fixed to the body 4. Alternatively, the connection may be achieved only by the first positioning portion 71 and the second positioning portion 72. For example, the first positioning portion 71 is a groove 11 or a convex column, and the second positioning portion 72 is a convex column or a groove 11. Specifically, when the first positioning portion 71 is the groove 11, the second positioning portion 72 is a convex column. When the first positioning portion 71 is a convex column, the second positioning portion 72 is a groove 11. The key module 1 is fixed on the body 4 through the matching of the groove 11 and the convex column.

Please refer to fig. 20. Fig. 20 is a schematic partial cross-sectional view of an electronic device 2 according to another embodiment of the present application. In this embodiment, the electronic device 2 further includes an elastic member 80, the elastic member 80 connects the second bracket 20 and the extension portion 5, and the elastic member 80 and the extension portion 5 are in compression interference.

When the key module 1 is mounted on the middle frame 3, impurities such as water or dust can enter the electronic device 2 not only from the isolation space 22, but also from between the extension portion 5 and the key module 1. Therefore, in the present embodiment, the elastic member 80 may be additionally provided such that the elastic member 80 is disposed between the second bracket 20 and the extension portion 5 and the elastic member 80 connects the second bracket 20 and the extension portion 5. Therefore, the gap between the extension part 5 and the key module 1 can be reduced or even eliminated by the arrangement of the elastic element 80, and the sealing performance of the electronic device 2 can be further improved. In addition, the present embodiment may also cause the elastic member 80 to compressively interfere with the extension portion 5. It can also be understood that the elastic member 80 is over compressed when the elastic member 80 is assembled, so that the elastic member 80 generates a resilient force, thereby improving the close fit effect between the elastic member 80 and the second bracket 20 and the extension portion 5, and further improving the sealing performance of the electronic device 2. Alternatively, the elastic member 80 includes, but is not limited to, silicone.

Please refer to fig. 21. Fig. 21 is a schematic partial cross-sectional view of an electronic device 2 according to yet another embodiment of the present application. In this embodiment, the elastic member 80 includes an elastic member body 81 and an engaging portion 82 protruding from one side of the elastic member body 81, the elastic member body 81 is closer to the second bracket 20 than the engaging portion 82, and the elastic member body 81 is bonded to the second bracket 20.

This embodiment may make the elastic member 80 include an elastic member body 81 and an engaging portion 82, and the elastic member body 81 may be bonded to the second bracket 20. Alternatively, the elastic member body 81 may be bonded to the second bracket 20 by a bonding member 83. The protruding mating portion 82 is then utilized to achieve a compressive interference with the extension 5. Since the fitting portion 82 is relatively smaller in size than the elastic member body 81, the fitting portion 82 can be more easily elastically deformed to better perform compression interference with the extension portion 5.

Please refer to fig. 22. Fig. 22 is a schematic partial cross-sectional view of an electronic device 2 according to still another embodiment of the present application. In this embodiment, the vertical distance between the engaging portion 82 and the key 40 gradually increases from the side close to the elastic body 81 to the side away from the elastic body 81.

On the basis of the arrangement of the engaging portion 82, the present embodiment may further include the engaging portion 82 being disposed in an inclined manner, that is, the vertical distance between the engaging portion 82 and the key 40 gradually increases from the side close to the elastic body 81 to the side away from the elastic body 81. It can also be understood that the farther away from the elastic body 81, the greater the distance between the engaging portion 82 and the key 40, the larger the opening formed by the engaging portion 82. The inclined engaging portion 82 can further reduce the difficulty of the engaging portion 82 in elastic deformation, and the engaging portion 82 can be deformed in a direction away from the key 40 when the elastic deformation occurs, i.e., the engaging portion 82 is elastically deformed outward, so that the engaging portion 82 is prevented from being elastically deformed inward to contact the key 40, and the normal movement of the key 40 is not affected.

The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A key module, comprising:

a first bracket;

2. The key module of claim 1, further comprising an electrical connector, wherein the electrical connector comprises a first end and a second end opposite to each other, the first end is disposed in the isolated space and connected to the key, and the second end penetrates through the sealing adhesive.

3. The key module of claim 2, wherein the seal bonding member comprises a first sub-seal bonding member and a second sub-seal bonding member bonded to each other, and the electrical connector further comprises a connecting portion connecting the first end and the second end, and a portion of the connecting portion is disposed between the first sub-seal bonding member and the second sub-seal bonding member.

4. The key module of claim 2, wherein the sealing adhesive member defines a third through hole communicating with the first through hole, the electrical connector passes through the third through hole, and the sealing adhesive member is in interference fit with the electrical connector.

5. The key module of claim 4, wherein the size of the opening of the third via hole near the side of the key is larger than the size of the opening of the third via hole far from the side of the key.

6. The key module of claim 2, wherein a side of the first end facing away from the key is provided with a movable portion, the movable portion abuts against the first bracket, and the movable portion is movable toward or away from the key.

7. The key module of claim 6, wherein the first frame defines a recess, and a portion of the movable portion is disposed in the recess.

8. The key module of claim 7, wherein the bottom wall and the side wall of the recess of the first frame are connected to the movable portion.

9. The key module of claim 6, further comprising a support member disposed between the first frame and the second frame, the support member being configured to support the first frame and the second frame.

10. The key module according to any one of claims 1-9, wherein the key comprises a key body and a locking portion disposed on a periphery of the key body, the locking portion is disposed in the isolated space, and the locking portion is capable of abutting against the second support.

11. The key module of claim 10, wherein an orthographic projection of the second through hole on the first support is located within an orthographic projection of the first through hole on the first support.

12. An electronic device, characterized in that the electronic device comprises a middle frame and the key module according to any one of claims 1-11, wherein the key module is connected with the middle frame; the middle frame comprises a body and an extension part connected with the periphery of the body in a bending mode, a fourth through hole is formed in the extension part, and the key penetrates through the fourth through hole.

13. The electronic device of claim 12, further comprising a resilient member connecting the second bracket and the extension, the resilient member compressively interfering with the extension.

14. The electronic device of claim 13, wherein the elastic member comprises an elastic member body and an engaging portion protruding from one side of the elastic member body, the elastic member body is closer to the second bracket than the engaging portion, and the elastic member body is bonded to the second bracket.

15. The electronic device of claim 14, wherein a vertical distance between the engaging portion and the key is gradually increased from a side close to the elastic member body to a side far from the elastic member body.

16. The electronic device of claim 12, wherein the body defines an avoiding slot, and a portion of the electrical connector is disposed in the avoiding slot.

17. The electronic device according to claim 12, wherein the first bracket is provided with a first positioning portion, the body or the extension portion is provided with a second positioning portion, and the first positioning portion and the second positioning portion are engaged with each other to connect the key module to the middle frame.