CN110365830A - A key device and terminal equipment - Google Patents

Abstract

The embodiment of the present invention discloses a key device and a terminal device. The key device includes a key body, a seal, a fixing frame and a key circuit board, and a target key is extended from the key body toward the end face of the key circuit board. The sealing member is inserted and fixed between the target key post and the fixing frame, the accommodating groove is used for accommodating the target key post, and the fixing frame is arranged opposite to the sealing member There is a through slot, and a trigger switch is provided at the opposite position of the key circuit board and the through slot, so that when the target key post receives a pressing event input by the user, the target key post squeezes the trigger switch on. It can be seen that the abutting portion of the seal shown in this embodiment abuts against the key body, thereby effectively preventing water from entering the key body through the gap between the seal and the key body. inside the terminal equipment.

Description

A key device and terminal equipment

technical field

The present application relates to the field of terminal equipment, and in particular, to a key device and terminal equipment.

Background technique

There are physical buttons on the side of the mobile phone, which can realize various functions, such as volume control function, camera function, and screen power switch function.

In order to ensure the service life of the mobile phone, the mobile phone needs to have waterproof performance. Referring to FIG. 1 , the hand housing body 100 is provided with a button 101, and the mobile phone is also provided with a soft sealing glue 102. The soft sealing glue 102 is formed with a groove, The key 101 is located inside the groove, so that the soft sealing glue 102 can prevent water from entering the interior of the mobile phone through the gap between the key 101 and the casing 100. The interior of the mobile phone also includes a fixed steel sheet 103, which is used to seal the soft seal. The glue 102 is fixed inside the mobile phone.

However, if the length of the button 101 is long, and the encircling and bending structure of the fixing steel sheet 103 for fixing the sealing soft glue 102 can only be achieved on both sides, and the force cannot be transmitted to the middle position of the button 101, there will be a problem in the button 101. 101 The sealing soft glue in the middle position is not tightly sealed with the shell, and the problem of water leakage.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a key device and a terminal device that can effectively improve waterproof performance.

A first aspect of the embodiments of the present invention provides a button device, the button device is applied to a terminal device, and the button device includes: a button body, a seal made of an elastic material, a fixing frame, and a button circuit board; wherein, the The key body is extended with at least one key post toward the end face of the key circuit board, and the seal is inserted and fixed between the target key post and the fixing frame, and the target key post is in the at least one key post. One key post, that is, the number of seals shown in this aspect is equal to the number of key posts included in the key device.

An accommodating groove is formed on the end surface of the seal facing the target key post, and the accommodating groove is used to accommodate the target key post. It can be seen that the accommodating groove shown in this aspect can cover The target key post, so that the seal can effectively prevent water from entering the interior of the terminal device through the gap between the seal and the key body.

A through groove is provided at the opposite position of the fixing frame and the sealing member, the groove bottom of the accommodating groove is inserted and fixed inside the through groove, and a trigger is provided at the opposite position of the key circuit board and the through groove. switch, so that when the target key post receives a pressing event input by the user, the target key post presses the trigger switch to conduct.

It can be seen that, using the key device shown in this aspect, because the sealing member and the key post are in a one-to-one correspondence in the setting positions, and because the key post is inserted into the accommodating groove of the sealing member, Because the seal is made of elastic material, under the condition that the key post exerts a force on the accommodating groove, the key post and the groove bottom of the accommodating groove are always in contact with each other. state, so that water will not enter the terminal device through the gap between the key post and the accommodating groove, even if the length of the key body shown in this embodiment is long, because the The number of the seals shown is equal to the number of the key posts included in the key body, and the key posts included in the key body are sealed by a plurality of seals, which effectively ensures the sealing of the key body. In addition, since the key post and the groove bottom of the accommodating groove are always in a fit state, the sealing effect of the middle position of the key body is effectively guaranteed.

The sealing member includes a clamping portion in a sheet-like structure, the end surface of the clamping portion facing the target key post is concavely provided with the accommodating groove, and the peripheral edge of the sealing member faces the target key post. A resisting portion is protruded in the direction of the button, so that when the target button post is inserted into the accommodating groove, the resisting portion and the button body resist each other.

In this embodiment, the abutting portion of the seal and the key body abut against each other, thereby effectively preventing water from entering the terminal device through the gap between the seal and the key body. internal. Using the terminal device shown in this embodiment can effectively prevent the terminal device from leaking water, and can achieve waterproofing of IP protection level 8 (ingress protection x8, IPX8).

The button device further includes a cover plate, and the cover plate is inserted between the fixing frame and the button circuit board, and the cover plate is provided with a plurality of ribs extending along the axial direction of the terminal device The end face of the fixing frame facing the cover plate is provided with a plurality of abutting grooves, and any rib among the plurality of ribs is inserted and fixed in one of the plurality of abutting grooves inside, and the rib and the abutting groove are in an interference fit.

In this embodiment, through the interference fit between the rib and the abutting groove, the sealing member fixed by the fixing frame is made of elastic material under the condition of receiving the force of the key post. The sealing member formed and located inside the accommodating groove can be uniformly stressed, so that the sealing member can tightly seal the gap between the key post and the fixing frame, effectively preventing water from passing through the The gap between the key post and the fixing frame flows into the terminal device, which effectively improves the waterproof effect of the terminal device.

In combination with the first aspect, in a possible design, an end face of the sealing member facing away from the target key post is provided with an adhesive adhesive layer, and the adhesive layer is used for bonding the sealing member to the The end surface of the fixing frame; the end surface of the cover plate shown in this embodiment is provided with a holding arm along the end surface facing the key circuit board, and the holding arm is used for holding and fixing the terminal device. card holder.

It can be seen that the use of the button device shown in this embodiment can improve the stability of the structure between the sealing member and the fixing frame, and avoid the situation where the sealing member is detached from the fixing frame and thus cannot seal the terminal equipment. Appear.

In combination with the first aspect, in a possible design, an accommodating groove is recessed on the end face of the key body, an elastic member is arranged inside the accommodating groove, and an elastic arm is connected to the notch of the accommodating groove. , the elastic arm can slide relative to the guide of the accommodating slot, and the housing of the terminal device is provided with a mounting slot, so that when the button body is inserted into the housing of the terminal device, The elastic arm is inserted into the installation groove and disposed.

With the terminal device shown in this embodiment, the button body can be stably inserted and fixed on the casing of the terminal device, thereby ensuring the stability of the structure between the button body and the casing of the terminal device.

A second aspect of the embodiments of the present invention provides a terminal device, where the terminal device includes a housing and the key device provided in the first aspect of the embodiments of the present invention and disposed inside the housing. Based on the same inventive concept, since the principle and beneficial effect of the terminal device for solving the problem can refer to the above-mentioned first aspect and each possible implementation manner and the beneficial effect brought by the first aspect, the implementation of the terminal device can refer to the above-mentioned Section 1. The possible implementation manners of the one aspect and the first aspect will not be repeated here. The first aspect of the embodiments of the present invention

It can be seen from the above technical solutions that using the terminal device shown in this embodiment, because the sealing member and the key post are in a one-to-one correspondence in the setting positions, and because the key post is inserted into the sealing member Inside the accommodating groove, because the seal is made of elastic material, under the condition that the button post exerts a force on the accommodating groove, the contact between the button post and the accommodating groove The bottom of the groove is always in a fit state, so that water will not enter the terminal device through the gap between the key post and the accommodating groove. It can be seen that even if the key body shown in this embodiment is The length is relatively long, because the number of the seals shown in this embodiment is equal to the number of the key posts included in the key body, and the key posts included in the key body are sealed by a plurality of seals, effectively This ensures the efficiency of sealing the key body, and because the key post and the groove bottom of the accommodating groove are always in a fit state, the sealing effect of the middle position of the key body is effectively guaranteed.

Description of drawings

1 is a schematic diagram of a partial cross-sectional structure of a mobile phone provided by the application;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the terminal device provided by the application;

3 is a schematic diagram of a circuit connection structure of an embodiment of the terminal device provided by the application;

FIG. 4 is a schematic diagram of an embodiment of a terminal device provided by the application having a structural explosion connection;

5 is a schematic diagram of the overall structure of an embodiment of a button body of a terminal device provided by the present application;

6 is a schematic diagram of the overall structure of another embodiment of the button body of the terminal device provided by the application;

7 is a schematic diagram of the overall structure of another embodiment of the button body of the terminal device provided by the application;

8 is a schematic diagram of the overall structure of another embodiment of the button body of the terminal device provided by the application;

9 is a schematic diagram of the overall structure of an embodiment of the sealing member of the terminal device provided by the application;

10 is a schematic diagram of the overall structure of another embodiment of the sealing member of the terminal device provided by the application;

FIG. 11 is a schematic cross-sectional structural schematic diagram of an embodiment of the terminal device provided by the application having a structure;

FIG. 12 is a schematic diagram of the overall structure of an embodiment of a fixing frame of a terminal device provided by the present application;

13 is a schematic diagram of the overall structure of another embodiment of the fixing frame of the terminal device provided by the application;

14 is a schematic diagram of the overall structure of an embodiment of a key circuit board of a terminal device provided by the application;

15 is a schematic diagram of the overall structure of another embodiment of the key circuit board of the terminal device provided by the application;

FIG. 16 is a schematic cross-sectional structural diagram of another embodiment of the terminal device provided by the present application;

17 is a schematic diagram of the overall structure of an embodiment of a cover plate of a terminal device provided by the application;

FIG. 18 is a schematic diagram of the overall structure of another embodiment of the cover plate of the terminal device provided by the present application.

Detailed ways

This embodiment provides a key device capable of improving sealing performance. The key device is applied to a terminal device. In order to better understand the embodiment of the present invention, the structure of the terminal device is firstly described by way of example, wherein, FIG. 2 It is a schematic diagram of the overall structure of an embodiment of the terminal device provided by the present invention.

The terminal device shown in this embodiment includes a casing 201, and the specific structure of the casing 201 is not limited in this embodiment. For example, in this embodiment, the casing 201 includes a front casing 202 and a rear casing The body 203 is taken as an example for illustration. The front case 202 and the rear case 203 shown in this embodiment are detachably connected structures. In other embodiments, the front case 202 and the rear case are The body 203 may also be an integrally formed structure, which is not specifically limited in this embodiment.

In this embodiment, the front case 202 and the rear case 203 are detachable connection structures as an example for illustration, and the front case 202 and the rear case 203 which are fastened to each other are formed to accommodate each The housing 201 of the device.

Specifically, the terminal device shown in this embodiment may be any terminal device such as a smart phone, a tablet computer, a personal digital assistant (PDA), a point of sales (POS), a vehicle-mounted computer, etc. This embodiment Taking the terminal device as a smartphone as an example to illustrate:

As shown in FIG. 3 , the terminal device shown in this embodiment is provided with a circuit main board 301, and the circuit main board 301 shown in this embodiment may be provided with a plurality of components, and the circuit main board 301 may be a radio frequency circuit , memory, input unit, display unit, sensor, audio circuit, wireless fidelity module, processor, power supply, etc., any of the above-mentioned devices may not be arranged on the circuit board 301, as long as its corresponding function can be realized, And the description of the devices provided on the circuit board 301 shown in this embodiment is an optional example. In a specific application, the circuit board 301 may include more or less devices than those shown above, or a combination of certain components. some devices, or different device arrangements.

A button circuit board 302 is provided in connection with the circuit board 301, and the button circuit board 302 may include trigger switches corresponding to different button bodies, so that the button body located on the housing 201 of the terminal device receives user input When a pressing event occurs, the button body supports the corresponding trigger switch, and the trigger switch is turned on so that the trigger switch determines that a corresponding command is input.

Taking FIG. 2 as an example, if the button body is the volume-up button 204, when the volume-up button 204 receives a pressing event input by the user, the volume-up button 204 can hold the corresponding trigger switch, which is located at the When the processor on the main circuit board 301 determines that the trigger switch corresponding to the volume-up button 204 is turned on, the processor can execute the corresponding volume-up operation.

Taking the example shown in FIG. 2 , if the button body is the power button 206, when the power button 206 receives a pressing event input by the user, the power button 206 can hold the corresponding trigger switch, which is located in the circuit. The processor on the main board 301 can determine whether the display unit is in a bright screen state, and if so, execute the process of turning off the display unit, and if not, execute the process of lighting the display unit.

Optionally, this embodiment is exemplified by taking the key circuit board 302 as a flexible printed circuit (flexible printed circuit, FPC) as an example.

The following is an exemplary description of the specific structure of the terminal device provided with the key device:

The key device shown in this embodiment may include a plurality of key bodies, and different key bodies may implement different functions. Taking the key body shown in FIG. 2 as an example, the key body shown in this embodiment may be used to realize different functions. The first button body 200 for volume adjustment, for another example, the button body shown in this embodiment may be the second button body 206 for realizing a power switch.

It should be clear that the above description of the functions implemented by the button body shown in this embodiment is an optional example. In other examples, the button body may also be a button for realizing a speaker switch. For example, the button The body may be a button or the like for realizing control of the camera.

It should also be clarified that, as shown in FIG. 2 , the button body shown in this embodiment is arranged on the side of the terminal device, that is, the button body is the side button of the terminal device as an example for illustration, and in other implementations In an example, the button body may also be located on the front or back of the terminal device.

It should also be clarified that this embodiment does not limit the specific shape of the button body. Taking FIG. 2 as an example, along the axial direction of the terminal device, the cross-section of the button body may be a rectangle. In other embodiments, the cross-section of the key body may be square or circular or other shapes required by the overall design of the terminal device.

Referring first to FIG. 4 , FIG. 4 is a schematic diagram of an explosive connection structure of an embodiment of the button device provided by the present invention.

The terminal device shown in FIG. 4 includes a first key body 200 for realizing volume adjustment and a second key body 206 for realizing a power switch.

The overall structure of the first button body 200 can be referred to as shown in FIGS. 5 to 6 , and the overall structure of the second button body 206 can be referred to as shown in FIGS. 7 to 8 .

The difference between the first button body 200 and the second button body 206 shown in this embodiment is that the number of button posts included in the first button body 200 and the second button body 206 is different.

In this embodiment, the first button body 200 is provided with two button posts extending toward the end face of the terminal device casing 401 , namely, the first button post 402 and the second key post 403 . The first button post 402 is used for In order to realize the function of increasing the volume, the second button post 403 is used to realize the function of decreasing the volume. The second button body 206 is provided with a button post extending toward the end surface of the terminal device housing 401 , namely the third button post 410 , and the third button post 410 is used to realize the function of switching the power supply of the terminal device.

The key device further includes seals 404. The number of the seals 404 shown in this embodiment is equal to the number of key posts included in the key device. In the first key body 200 included in the terminal device, In the case of including two key posts, the key device includes a sealing member 404 corresponding to the first key post 402 and a second sealing member 404 corresponding to the second key post 403 respectively.

The overall structure of the sealing member 404 can also be referred to as shown in FIG. 9 to FIG. 10 . Specifically, this embodiment is described with the structure of the sealing member 404 corresponding to the target key post, wherein the target key post can be the above-mentioned The illustrated first key post 402 is taken as an example, and for a detailed description of the structure of the sealing member corresponding to the second key post 403, please refer to the sealing member 404 corresponding to the first key post 402, and details will not be repeated. .

The sealing member 404 includes a clamping portion 501 in a sheet-like structure, and along the radial direction of the terminal device, the clamping portion 501 is disposed opposite to the first key post 402, so that the clamping portion 501 can isolate moisture from entering the interior of the terminal device, the end surface of the clamping portion 501 facing the first button post 402 is concavely provided with the accommodating groove 502, and the peripheral edge of the sealing member 404 is facing the first button post. A resisting portion 503 is protruded in the direction of 402 .

Continuing with FIG. 11 , FIG. 11 is a schematic cross-sectional structure diagram of an embodiment of the button device. When the first button post 402 is inserted into the accommodating groove 502 , the abutting The part 503 and the first button body 200 abut against each other, thereby effectively preventing water from entering the interior of the terminal device through the gap between the first button post 402 and the sealing member 404 .

The following is a detailed description of how the seal is fixed inside the key device:

Specifically, the sealing member 404 corresponding to the first button post 402 is taken as an example for description. The sealing member 404 included in the key device is inserted and fixed between the first button post 402 and the fixing frame 600 . . The overall structure of the fixing frame 600 can also be referred to as shown in FIG. 12 to FIG. 13 .

The fixing base 600 shown in this embodiment is provided with a plurality of through grooves 601. Specifically, the through grooves 601 shown in this embodiment are used for inserting and fixing the sealing member 404, then the fixing The number of the through grooves 601 included in the seat 600 is equal to the number of the sealing members 404 included in the key device.

Specifically, the groove bottom of the accommodating groove 502 is inserted and fixed inside the through groove 601 , so that the sealing member 404 can be inserted and fixed on the fixing frame 600 .

Optionally, in order to improve the stability of the structure between the sealing member 404 and the fixing frame 600 , the end surface of the sealing member 404 shown in this embodiment facing away from the first key post 402 may be provided with An adhesive adhesive layer is provided, and the adhesive layer is used for adhering the sealing member 404 to the end face of the fixing frame 600 .

Optionally, the adhesive layer shown in this embodiment may be formed by coating the end surface of the sealing member 404 facing away from the first key post 402 by quick-drying glue or silicone glue. The shown adhesive layer enables the sealing member 404 to further have waterproof performance, and enhances the structural stability between the sealing member 404 and the fixing frame 600 , preventing the sealing member 404 from being removed from the fixing frame 600 . detached, thereby further improving the waterproofness of the key device.

In order to realize the corresponding function of the button body shown in this embodiment, the following is an exemplary description of how the button body shown in this embodiment triggers the trigger switch located on the button circuit board 700:

The overall structure of the key circuit board 700 shown in this embodiment can be seen in FIG. 14 and FIG. 15 . The key circuit board 700 shown in this embodiment is provided with a plurality of trigger switches 701 . Specifically, To realize the functions of each trigger switch 701, the first button post 402, the seal 404 and the trigger switch 701 are correspondingly arranged along the radial direction of the terminal device. It can be seen that, as shown in this embodiment, The number of the trigger switches 701 is equal to the number of key posts included in the key device, so that different key posts can trigger different trigger switches, and different trigger switches can be triggered to realize different functions of the terminal device.

Specifically, the groove bottom of the accommodating groove 502 of the sealing member 404 corresponding to the first button post 402 shown in this embodiment is inserted and fixed inside the through-groove 601, so that the accommodating groove 601 is inserted and fixed. The groove bottom of the receiving groove 502 and the trigger switch 701 are arranged correspondingly along the radial direction of the terminal device, and the groove bottom of the receiving groove 502 and the trigger switch 701 have a gap, and when the user needs to lift When the volume of the terminal device is turned on, the user can input a pressing event to the area corresponding to the first key post 402 on the first key body 200, and the first key post 402 receives the press event. In this case, the first button post 402 will squeeze the sealing member 404 corresponding to the first button post 402, so that the bottom of the groove of the sealing member 404 triggers the trigger switch 701, so that the trigger switch 701 is triggered. The switch 701 can execute the corresponding operation of increasing the volume.

For another example, if the user needs to lower the volume of the terminal device, the user can input a pressing event to the area corresponding to the second button post 403 on the first button body 200, and the second button post 403 When 403 receives the pressing event, the second button post 403 will squeeze the sealing member 404 corresponding to the second button post 403, so that the bottom of the groove of the sealing member 404 triggers the trigger The switch 701 is activated, so that the trigger switch 701 can perform the corresponding volume reduction operation.

Referring to FIG. 4 , the opening of the casing 401 of the terminal device shown in this embodiment may be provided with a retaining wall 405 , and the key circuit board 700 may be fixed on the retaining wall 405 . The structure can be seen in FIG. 16. This embodiment does not limit how the key circuit board 700 is fixed on the retaining wall 405. For example, the retaining wall 405 shown in this embodiment may be provided with If the installation through hole 406 is installed, the installation arm 703 of the key circuit board 700 can pass through the installation through hole 406, so that the key circuit board 700 can be fixedly arranged on the retaining wall 405. For another example, in this embodiment As shown, the key circuit board 700 can be bonded on the retaining wall 405 by glue.

The following is an exemplary description of how the fixing frame 600 shown in this embodiment is specifically arranged inside the casing 401 of the terminal device:

Optionally, the fixing frame 600 shown in this embodiment may be directly clamped and fixed inside the casing 401 .

Optionally, the fixing frame 600 shown in this embodiment can be inserted and fixed inside the housing 401 through a cover plate 800 . Specifically, the overall structure of the cover plate 800 can be referred to FIGS. 17 to 18 . shown.

Specifically, as shown in FIG. 4 , FIG. 17 and FIG. 18 , the end surface of the cover plate 800 shown in this embodiment is provided with a holding arm 801 along the end surface facing the key circuit board 700 . A holding groove 407 is provided inside the casing 401 , and the holding groove 407 shown in this embodiment is matched with the shape of the holding arm 801 , so that the holding arm 801 is inserted under force. When inside the holding groove 407 , the holding arm 801 is in an interference fit with the holding groove 407 , so as to fix the cover plate 800 inside the casing 401 .

Specifically, the cover plate 800 shown in this embodiment is inserted between the fixing frame 600 and the key circuit board 700 , as can be seen from the coordinate system shown in FIG. The key circuit board 700 plays a role of fixing in the Z direction, thereby effectively preventing the first key body 200 from moving along the Z direction, thereby effectively preventing the first key body 200 from being eccentric , so as to cause the user to feel bad when inputting a pressing event to the first button body 200 and the first button body 200 cannot successfully receive the pressing event. It can be seen that the structure shown in this embodiment can effectively improve the Operation efficiency of inputting a pressing event to the first button body 200 .

The fixing frame 600 shown in this embodiment is disposed inside the casing 401 through the cover plate 800, and the cover plate 800 is provided with a plurality of ribs 803 extending along the axial direction of the terminal device 4 and 12, the end surface of the fixing frame 600 facing the cover plate 800 is provided with a plurality of abutting grooves 603, and any rib 803 of the plurality of ribs 803 is inserted and fixed in the One of the plurality of abutting grooves 603 abuts the inside of the groove 603 , that is, the plurality of the ribs 803 and the plurality of the plurality of the abutting grooves 603 in this embodiment are in a one-to-one correspondence in the setting positions , the rib 803 can be inserted and fixed in the abutting groove 603 corresponding to the rib 803, so that the rib 803 and the abutting groove 603 are in an interference fit. The board 800 has been inserted and fixed inside the casing 401 , and the fixing frame 600 shown in this embodiment is inserted and fixed inside the casing 401 through the cover plate 800 .

This embodiment is exemplified by taking the fixing frame 600 and the cover plate 800 as two independent structures for illustration. In other embodiments, the fixing frame 600 and the cover plate 800 may also be integrated The molding structure is not specifically limited.

As can be seen from the coordinate system shown in FIG. 4 , the rib 803 and the abutting groove 603 shown in this embodiment are in an interference fit in the X-axis, and the sealing member 404 is inserted and fixed in the fixed position. In the case where the through-groove 601 of the frame 600 is used, due to the fixing action of the fixing frame 600 on the sealing member 404, the sealing member 404 and the key post can be kept in a one-to-one correspondence at the setting positions, Therefore, when any key post included in the key device receives a pressing event input by the user, the key post can exert a force on the sealing member 404, and the sealing member 404 is in the entire surface under pressure. The state of uniform force enables the sealing member 404 to achieve sealing.

The following is an exemplary description of how the button body shown in this embodiment is fixedly arranged inside the terminal device. It should be clarified that the description in this embodiment that the button body is arranged inside the terminal device is optional. example, without limitation.

The second button body 206 is installed on the terminal device as an example for illustration. For the description of other button bodies of the terminal device being installed on the terminal device, please refer to the second button body 206 For example, there is no specific limitation.

For example, as shown in FIG. 8 , the end surface of the second button body 206 is concavely provided with an accommodating groove, and an elastic member is arranged inside the accommodating groove, and the elastic member may be a spring or the like. The slot of the slot is connected with an elastic arm 207, and the elastic arm 207 can slide relative to the guide of the accommodating slot. The housing 401 of the terminal device is provided with an installation slot, so that the second button When the main body 206 is inserted into the casing 401 of the terminal device, the elastic arm 207 is inserted into the installation slot.

It should be clear that, in this embodiment, the key body may be installed on the casing of the terminal device by bonding the key body to the casing of the terminal device through glue. The key body can be fastened in the casing of the terminal device by means of elastic buckles made of elastic material, etc., which is not specifically limited in this embodiment.

The beneficial effects of the terminal device provided with the key device shown in this embodiment will be described below:

With the terminal device shown in this embodiment, because the sealing member and the key post are in a one-to-one correspondence in the setting positions, and because the key post is inserted into the accommodating groove of the sealing member, the The sealing member is made of elastic material, then under the condition that the key post exerts a force on the accommodating groove, the key post and the groove bottom of the accommodating groove are always in a state of fitting , so that water will not enter the terminal device through the gap between the key post and the accommodating groove. It can be seen that even if the length of the key body shown in this embodiment is long, because this embodiment The number of the seals shown is equal to the number of the key posts included in the key body. The key posts included in the key body are sealed by a plurality of seals, which effectively ensures the sealing of the key body. In addition, since the key post and the groove bottom of the accommodating groove are always in a state of fitting, the sealing effect of the middle position of the key body is effectively guaranteed. In addition, the abutting portion of the sealing member shown in this embodiment abuts against the key body, thereby effectively preventing water from entering the key body through the gap between the sealing member and the key body. inside the terminal equipment. Using the terminal device shown in this embodiment can effectively prevent the terminal device from leaking water, and can achieve waterproofing of IP protection level 8 (ingress protection x8, IPX8).

In this embodiment, the cover plate is provided with a plurality of ribs extending along the axial direction of the terminal device, and the end surface of the fixing frame facing the cover plate is provided with a plurality of abutting grooves. The interference fit between the strip and the abutting groove, so that the seal fixed by the fixing frame is made of elastic material and located in the accommodating groove under the condition of receiving the force of the key post The inner seal can be evenly stressed, so that the seal can tightly seal the gap between the key post and the fixing frame, effectively preventing water from passing through the space between the key post and the fixing frame. The gap between them flows into the terminal device, which effectively improves the waterproof effect of the terminal device.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. A key device, characterized in that, the key device is applied to a terminal device, and the key device comprises: a key body, a seal made of an elastic material, a fixing frame and a key circuit board; The key body is extended with at least one key post toward the end face of the key circuit board, the seal is inserted and fixed between the target key post and the fixing frame, and the target key post is the at least one key A key post in the post, an accommodating groove is formed on the end face of the seal facing the target key post, and the accommodating groove is used for accommodating the target key post, the fixing frame and the sealing member A through-slot is provided at the opposite place, the bottom of the accommodating groove is inserted and fixed inside the through-slot, and a trigger switch is arranged at the opposite position of the key circuit board and the through-slot, so that the target key post is In the case of receiving a pressing event input by the user, the target key post presses the trigger switch to turn on; The sealing member includes a clamping portion in a sheet-like structure, the end surface of the clamping portion facing the target key post is concavely provided with the accommodating groove, and the peripheral edge of the sealing member faces the target key post. A resisting portion is protruded in the direction of the button, so that when the target button post is inserted into the accommodating groove, the resisting portion and the button body resist each other; The button device further includes a cover plate, and the cover plate is inserted between the fixing frame and the button circuit board, and the cover plate is provided with a plurality of ribs extending along the axial direction of the terminal device The end surface of the fixing frame facing the cover plate is provided with a plurality of abutting grooves, and any rib of the plurality of ribs is inserted and fixed in one of the plurality of abutting grooves. inside, and the rib and the abutting groove are in an interference fit. 2 . The key device according to claim 1 , wherein an end surface of the sealing member facing away from the target key post is provided with an adhesive layer with adhesiveness, and the adhesive layer is used for attaching the sealing member. 3 . Bonded on the end face of the fixing frame; The end face of the cover plate is provided with a holding arm along the end face facing the key circuit board, and the holding arm is used for holding a holding groove for holding and fixing the terminal device. 3 . The button device according to claim 1 or 2 , wherein an accommodating groove is recessed on the end surface of the button body, an elastic member is arranged inside the accommodating groove, and a notch of the accommodating groove is provided. 4 . The connection is provided with an elastic arm, the elastic arm can slide relative to the guide of the accommodating slot, and the housing of the terminal device is provided with a mounting slot, so that the key body is inserted into the terminal device when the button body is inserted into the terminal device. When inside the casing, the elastic arm is inserted into the installation groove and disposed. 4. A terminal device, characterized in that the terminal device comprises a casing and a button device arranged inside the casing, the button device comprising: a button body, a seal made of an elastic material, a fixing frame and key circuit board; The key body is extended with at least one key post toward the end face of the key circuit board, the seal is inserted and fixed between the target key post and the fixing frame, and the target key post is the at least one key A key post in the post, an accommodating groove is formed on the end face of the seal facing the target key post, and the accommodating groove is used for accommodating the target key post, the fixing frame and the sealing member A through-slot is provided at the opposite place, the bottom of the accommodating groove is inserted and fixed inside the through-slot, and a trigger switch is arranged at the opposite position of the key circuit board and the through-slot, so that the target key post is In the case of receiving a pressing event input by the user, the target key post presses the trigger switch to turn on; The sealing member includes a clamping portion in a sheet-like structure, the end surface of the clamping portion facing the target key post is concavely provided with the accommodating groove, and the peripheral edge of the sealing member faces the target key post. A resisting portion is protruded in the direction of the button, so that when the target button post is inserted into the accommodating groove, the resisting portion and the button body resist each other; The button device further includes a cover plate, and the cover plate is inserted between the fixing frame and the button circuit board, and the cover plate is provided with a plurality of ribs extending along the axial direction of the terminal device The end surface of the fixing frame facing the cover plate is provided with a plurality of abutting grooves, and any rib of the plurality of ribs is inserted and fixed in one of the plurality of abutting grooves. inside, and the rib and the abutting groove are in an interference fit. 5 . The terminal device according to claim 4 , wherein an end surface of the sealing member facing away from the target key post is provided with an adhesive layer with adhesiveness, and the adhesive layer is used to attach the sealing member to the terminal. 6 . Bonded on the end face of the fixing frame; The end face of the cover plate is provided with a holding arm along the end face facing the key circuit board, and the holding arm is used for holding a holding groove for holding and fixing the terminal device. 6 . The terminal device according to claim 4 , wherein an accommodating groove is concavely formed on the end face of the button body, an elastic member is provided inside the accommodating groove, and a notch of the accommodating groove is provided. 7 . The connection is provided with an elastic arm, the elastic arm can slide relative to the guide of the accommodating slot, and the housing of the terminal device is provided with a mounting slot, so that the key body is inserted into the terminal device when the button body is inserted into the terminal device. When inside the casing, the elastic arm is inserted into the installation groove and disposed.