CN221352621U - Key assembly and mobile communication device - Google Patents

Abstract

The application discloses a key assembly and mobile communication equipment. The key circuit board is used for being fixedly arranged on a face shell of the mobile communication device. The fingerprint chip is arranged on one surface of the key circuit board, which is opposite to the surface of the shell. The fingerprint chip is electrically connected with the key circuit board; the button body is arranged on one surface of the button circuit board, which is opposite to the surface of the shell. The key body comprises an annular multidirectional key which is arranged around the fingerprint chip in a circle. Above-mentioned, the user both can operate control through the button body, and the user can also operate control through the fingerprint chip, and the fingerprint chip can be used for authentication to improve mobile communication device's operation experience, improved privacy and the operational safety of product.

Description

Key assembly and mobile communication device

Technical Field

The present application relates to the field of mobile communication devices, and in particular, to a key assembly and a mobile communication device.

Background

With the technical development of mobile communication devices, the requirements of users on the safety experience of products are higher and higher.

The operation of the conventional mobile communication equipment is controlled only through the keys, and the operation control is performed through a single key, so that the privacy and the operation safety of an interphone product are low, and the problems of misoperation of the interphone and misoperation of other people are easy to occur.

Disclosure of utility model

The application mainly solves the technical problem of providing a key assembly and mobile communication equipment so as to improve the operation safety of products.

In order to solve the technical problems, a first technical scheme adopted by the application is to provide a key assembly which is used for being arranged on mobile communication equipment and comprises a key circuit board, a fingerprint chip, a key body and a key support. The key circuit board is used for being fixedly arranged on a face shell of the mobile communication equipment; the fingerprint chip is arranged on one surface of the key circuit board, which is opposite to the surface shell; the fingerprint chip is electrically connected with the key circuit board; the key body is arranged on one surface of the key circuit board, which is opposite to the surface shell; wherein the key body comprises an annular multidirectional key arranged around the fingerprint chip

In one possible embodiment, the key assembly further includes: the key support is arranged on one surface of the key circuit board, which is opposite to the surface shell, and the key support forms a plurality of limiting holes, and the limiting holes are used for limiting the fingerprint chip and the key body on one surface of the key circuit board, which is opposite to the surface shell.

In one possible embodiment, the method further comprises: the heightening piece is arranged between the key circuit board and the fingerprint chip and is used for lifting the fingerprint chip; the metal ring is arranged on one surface of the key circuit board, which is opposite to the surface shell, the metal ring is limited by the limiting hole on the key support, and the fingerprint chip is positioned in the metal ring.

In one possible embodiment, the key body includes: the litter piece is arranged on one surface of the key circuit board, which is opposite to the face shell, and is attached to the key circuit board; the mobile communication device comprises a key circuit board, a first adhesive, a second adhesive and a nest piece, wherein the key circuit board is fixedly arranged on a face shell of the mobile communication device through the first adhesive, the first adhesive is arranged along the edge of the key circuit board so as to play a role in sealing and waterproofing, the nest piece is fixedly arranged on the face shell of the mobile communication device through the second adhesive, and the second adhesive is arranged along the edge of the nest piece so as to play a role in sealing and waterproofing, and the nest piece covers the key circuit board.

In one possible embodiment, the key body further includes: the silica gel plate is positioned between the key support and the litter piece, and the key support is limited and fixes the silica gel plate on the litter piece.

In one possible implementation manner, the silica gel plate is provided with a plurality of key silica gels, and the key silica gels are accommodated in the limiting holes one by one and protrude from the limiting holes to leak out of one surface of the key support, which is opposite to the face shell.

In one possible embodiment, the method further comprises: the keyboard board is fixed on the key support and comprises a plurality of pressing keyboards which can be pressed and movably arranged, and each pressing keyboard is fixed with each key silica gel in a one-to-one correspondence mode.

In one possible implementation manner, the key body is provided with a containing through groove, and the fingerprint chip is positioned in the containing through groove and leaks out through the containing through groove; the silica gel plate is provided with annular silica gel surrounding the through groove on the silica gel plate, the annular silica gel is arranged around the fingerprint chip in the through groove, and the keyboard plate comprises an annular push keyboard which is correspondingly fixed with the annular silica gel so as to form an annular multidirectional key surrounding the fingerprint chip; the keyboard board further comprises a plurality of first functional keyboards, and the first functional keyboard arrays are arranged around the annular multidirectional keys; the keyboard board also comprises a plurality of second functional keyboards, wherein the second functional keyboards are arranged in rows and columns, and the second functional keyboards are arranged on one side of the annular multidirectional keys.

In one possible implementation manner, the key circuit board, the silica gel board, the key silica gel and the pressing keyboard are provided with sound outlets which are communicated with each other.

In order to solve the above technical problems, a second technical solution adopted by the present application is to provide a mobile communication device, where the mobile communication device includes a key assembly as described in any one of the above; the mobile communication device further includes: the equipment body comprises a shell, a loudspeaker assembly arranged in the shell and a face shell positioned on the surface of the shell, wherein the face shell is positioned on one side of the sound emitting surface of the loudspeaker assembly; the key assembly is arranged on one side of the face shell, which is opposite to the loudspeaker assembly; the screen body is arranged on one side of the face shell, which is opposite to the loudspeaker assembly; the key assembly is arranged adjacent to the screen body.

The beneficial effects of the application are as follows: the application provides a key assembly and a mobile communication device, which are different from the prior art. The key assembly comprises a key circuit board, a fingerprint chip, a key body and a key support. The key circuit board is used for being fixedly arranged on a face shell of the mobile communication device. The fingerprint chip is arranged on one surface of the key circuit board, which is opposite to the surface of the shell. The fingerprint chip is electrically connected with the key circuit board; the button body is arranged on one surface of the button circuit board, which is opposite to the surface of the shell. The key body comprises an annular multidirectional key which is arranged around the fingerprint chip in a circle. Above-mentioned, the user both can operate control through the button body, and the user can also operate control through the fingerprint chip, and the fingerprint chip can be used for authentication to improve mobile communication device's operation experience, improved privacy and the operational safety of product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an exploded view of an embodiment of a key assembly according to the present application;

FIG. 2 is a schematic diagram of the key assembly of FIG. 1 disposed on a mobile communication device;

Fig. 3 is a schematic diagram of an exploded structure of an embodiment of the mobile communication device of the present application.

100, A key assembly; 10. a key circuit board; 21. a lifting piece; 22. a fingerprint chip; 23. a metal ring; 30. a litter piece; 40. a silicone plate; 41. key silica gel; 42. annular silica gel; 50. a key support; 51. a limiting hole; 52. the accommodating through groove; 60. a keyboard panel; 61. pressing the keyboard; 611. a first function keyboard; 612. a second function keyboard; 70. a key body; 81. a sound outlet hole; 82. a ring-shaped multidirectional key; 200. a mobile communication device; 90. a screen body; 310. a horn assembly; 320. and (5) a face shell.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to fall within the scope of the present application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The existing electronic products are low in privacy and operation safety, and misoperation and other misoperation are easy to occur.

Based on the above-mentioned problems, the present application provides a key assembly and a mobile communication device, which can effectively solve the above-mentioned problems by simultaneously disposing a fingerprint chip and a key body on the key assembly.

The following describes a key assembly and a key body provided by the application in detail with reference to the drawings and embodiments.

The application provides a key assembly. Referring to fig. 1 and 2, fig. 1 is an exploded view of a key assembly according to an embodiment of the application. Fig. 2 is a schematic diagram of a structure in which the key assembly of fig. 1 is disposed on a mobile communication device. In a specific embodiment, the key assembly 100 of the present application includes a key circuit board 10, a fingerprint chip 22, and a key body 70.

The key circuit board 10 is for being fixedly disposed on a face housing of a mobile communication device. The fingerprint chip 22 is disposed on a side of the key circuit board 10 opposite the face housing. The fingerprint chip 22 is electrically connected to the key circuit board 10. The key body 70 is disposed on a side of the key circuit board 10 opposite to the face case. The key support 50 is disposed on a side of the key circuit board 10 opposite the face shell, wherein the key body 70 includes an annular multi-directional key 82 disposed around the fingerprint chip 22. Specifically, the mobile communication device may be any reasonable device such as an interphone, an outdoor unit, etc., and the key assembly 100 is used for being disposed on the mobile communication device to perform operation control on the mobile communication device. In this embodiment, the mobile communication device is specifically an intercom. The key circuit board 10 may be specifically fixed on the casing of the mobile communication device by a latch, a buckle, or the like, and in some other embodiments, the key circuit board 10 may also be in an integral structure with the casing of the mobile communication device. Above-mentioned, be provided with button body 70 and fingerprint chip 22 on the button circuit board 10 while connection, button body 70 and fingerprint chip 22 leak outward through spacing hole 51 on the button support 50, and the user both can operate control through button body 70, also can operate control through fingerprint chip 22, and fingerprint chip 22 can be used for authentication, has improved operation experience, has improved privacy and the operational safety of product. In this embodiment, the annular multi-directional key 82 includes function keys located in four directions of up, down, left, right of the fingerprint chip 22 to facilitate the operation thereof.

In other embodiments, the fingerprint chip 22 is not limited to use for fingerprint authentication, but can also implement key functions.

Compared with the prior art, the application provides a key assembly 100, wherein a fingerprint chip 22 is connected to a key circuit board 10 of the key assembly 100, a key body 70 is also connected to the key circuit board 10, the fingerprint chip 22 and the key body 70 are limited by a key bracket 50 and leak, a user can operate and control through the key body 70, the user can also operate and control through the fingerprint chip 22, and the fingerprint chip 22 can be used for identity authentication, so that the operation experience of mobile communication equipment is improved, and the privacy and operation safety of products are improved.

In this embodiment, the key assembly 100 further includes a key holder 50. The key support 50 forms a plurality of limiting holes 51, and the limiting holes 51 are used for limiting the fingerprint chip 22 and the key body 70 on the surface of the key circuit board 10 facing away from the face shell. The key support 50 is located on a surface of the key circuit board 10 facing away from the face shell of the mobile communication device, and the key support 50 is detachably fixed to the face shell of the mobile communication device, and in some other embodiments, the key support 50 can also be detachably fixed to the key circuit board 10. A plurality of spacing holes 51 are formed on the opposite side of the key support 50 from the key circuit board 10, and each spacing hole 51 accommodates the key body 70 or the fingerprint chip 22 for spacing the positions of the fingerprint chip 22 and the key body 70 on the key circuit board 10.

In this embodiment, the key assembly 100 further includes a lifting member 21, where the lifting member 21 is disposed between the key circuit board 10 and the fingerprint chip 22, and the lifting member 21 is used to lift the fingerprint chip 22. Specifically, the thickness degree of freedom of the fingerprint chip 22 is high due to the arrangement of the heightening piece 21, so that the problem of touch feeling of the fingerprint key caused by the thickness limitation of the fingerprint chip 22 can be effectively solved, and the user experience is improved. The thickness of the raised piece 21 is adjusted according to the thickness of the fingerprint chip 22 to improve the touch of the fingerprint chip 22. The spacer 21 may be any reasonable insulating material such as FR4 material, rubber, ceramic, etc., and is not limited herein.

In this embodiment, the key assembly 100 further includes a metal ring 23, the metal ring 23 is disposed on a surface of the key circuit board 10 opposite to the surface shell, the metal ring 23 is limited by a limiting hole 51 on the key support 50, and the fingerprint chip 22 is located in the metal ring 23. Specifically, the metal ring 23 is electrically connected with the fingerprint chip 22, and when the fingerprint chip 22 performs fingerprint authentication, the metal ring 23 is also used for contacting with a finger of a user and transmitting a signal, and plays a role in authenticating the fingerprint together with the fingerprint chip 22, and on the other hand, the metal ring 23 also plays a role in attractive appearance and protecting the fingerprint chip 22. The metal ring 23 and the fingerprint chip 22 have the same shape, the inner ring size of the metal ring 23 is the same as the size of the fingerprint chip 22, and the raised piece 21 raises the metal ring 23 and the fingerprint chip 22 in the metal ring 23 at the same time, preferably, the raised piece 21 and the metal ring 23 and the fingerprint chip 22 have the same shape. In this embodiment, the shape of the fingerprint chip 22 is circular, and in some other embodiments, the shape of the fingerprint chip 22 can be any reasonable shape such as square, triangle, pentagon, etc., which is not particularly limited herein.

Further, in the present embodiment, the fingerprint chip 22 and the raised piece 21 are fixed on the key circuit board 10 through a patch, and the metal ring 23 is fixed on the key circuit board 10 through a structural adhesive and a conductive adhesive and surrounds the fingerprint chip 22 and the raised piece 21.

In this embodiment, the key body 70 includes a nest plate 30, the nest plate 30 is disposed on a side of the key circuit board 10 opposite to the face shell, and the nest plate 30 is attached to the key circuit board 10. The key circuit board 10 is fixedly arranged on the face shell of the mobile communication device through a first adhesive (not labeled), the first adhesive is arranged along the edge of the key circuit board 10 so as to play a role in sealing and waterproofing, the nest die 30 is fixedly arranged on the face shell of the mobile communication device through a second adhesive, and the second adhesive (not labeled) is arranged along the edge of the nest die 30 so as to play a role in sealing and waterproofing. Wherein the litter piece 30 covers the key circuit board 10. Specifically, the key body 70 further includes a silica gel plate 40 on the litter piece 30, a plurality of key silica gel 41 is disposed on the silica gel plate 40, the litter piece 30 is made of conductive material and is used as a conductive point, when the key silica gel 41 is pressed, the corresponding position of the litter piece 30 is driven to be concave to contact with a circuit on the key circuit board 10, thereby forming a loop, and current passes through to enable the mobile communication device to respond to the key. When the key assembly 100 is installed, the key circuit board 10 is fixed on the face shell of the mobile communication device through the first adhesive, the first adhesive is waterproof, and meanwhile the first adhesive is arranged along the edge of the key circuit board 10, so that the first adhesive can completely seal a gap between the key circuit board 10 and the face shell, and the sealing waterproof effect is effectively achieved. After the key circuit board 10 is fixed, the nest plate 30 is fixedly arranged on the point surface shell of the mobile communication equipment through the second viscose, the nest plate 30 covers the key circuit board 10, and the nest plate 30 also plays a role in preventing water and protecting the key circuit board 10.

In this embodiment, the key body 70 further includes a silica gel plate 40, the silica gel plate 40 is located between the key support 50 and the litter piece 30, and the key support 50 limits and fixes the silica gel plate 40 on the litter piece 30. The silica gel plate 40 is provided with a plurality of key silica gel 41, and the key silica gel 41 is accommodated in the limiting holes 51 one by one and protrudes from the limiting holes 51 to leak outside the surface of the key support 50, which is opposite to the surface shell. Specifically, in this embodiment, the plurality of key silica gel 41 and the silica gel plate 40 are integrally formed, and in some other embodiments, in order to facilitate assembly or replacement of part of the key silica gel 41, each key silica gel 41 may be connected into a whole without the silica gel plate 40, and each key silica gel 41 may be individually limited in the corresponding limiting hole 51 by the key support 50 and exposed through the limiting hole 51. The key silica gel 41 is exposed from the limiting hole 51 so that the user can press the key silica gel 41. In this embodiment, the litter piece 30 is a one-piece, unitary design, and in some other embodiments, the litter piece 30 can be composed of a plurality of independent elastic pieces, which are not particularly limited herein.

In this embodiment, the key assembly 100 further includes a keyboard board 60, the keyboard board 60 is fixed on the key support 50, the keyboard board 60 includes a plurality of pressing keyboards 61 that are movably arranged for pressing, and each pressing keyboard 61 is fixed in a one-to-one correspondence with each key silica gel 41. Specifically, the keyboard 60 is located on the outermost surface of the key assembly 100, and can be used for protecting the key silica gel 41 and the internal structure, and the user presses the key silica gel 41 by pressing the keyboard 61, and the keyboard 61 also plays a role in improving the pressing hand feeling of the user. In this embodiment, the key silica gel 41, the key pad 61 and the limiting hole 51 for accommodating the key silica gel 41 are all square, and in some other embodiments, the key silica gel 41, the key pad 61 and the limiting hole 51 for accommodating the key silica gel 41 can be any reasonable shape such as triangle, circle, etc., which is not limited herein.

Further, in the present embodiment, the key body 70 has a receiving through hole, and the fingerprint chip 22 is located in the receiving through groove 52 and leaks out through the receiving through groove 52. Specifically, the key body 70 includes a nest plate 30, a silicone plate 40, and a keyboard plate 60. The same corresponding positions of the litter piece 30 and the silicone plate 40 are provided with through grooves, the fingerprint chip 22 is arranged in the through grooves, is electrically connected with the key circuit board 10, and leaks outside through the through grooves so that a user can touch the fingerprint chip 22, in this embodiment, the fingerprint chip 22 is circular, the corresponding through grooves are also circular, and in some other embodiments, the shape of the through grooves is adjusted along with the change of the shape of the fingerprint chip 22, which is not particularly limited herein.

Further, the silica gel plate 40 is provided with an annular silica gel 42 surrounding the through groove on the silica gel plate 40, the annular silica gel 42 is arranged around the fingerprint chip 22 in the through groove, and the keyboard plate 60 comprises an annular push keyboard 61 correspondingly fixed with the annular silica gel 42 so as to form an annular multidirectional key 82 surrounding the fingerprint chip 22. Specifically, the annular silica gel 42 includes a plurality of key silica gels 41 surrounding a circle, in this embodiment, the annular silica gel 42 is in a circular ring shape, and the key silica gels 41 are disposed on the annular silica gel 42 in four directions up, down, left and right relative to the fingerprint chip 22, so as to form an annular four-way key. In this embodiment, the through slot is formed in the upper half of the key body 70, and the other areas of the key body 70 include a plurality of key silica gel 41 and key pads arranged in rows and columns.

In the present embodiment, the keyboard panel 60 further includes a plurality of first function keyboards 611, and a first array of function keyboards 612 is disposed around the annular multi-directional keys 82; the keyboard board 60 further includes a plurality of second functional keyboards 612, where the second functional keyboards 612 are arranged in rows and columns, and the second functional keyboards 612 are disposed on one side of the annular multi-directional keys 82. Specifically, the four first function keyboards 611 of the present embodiment are respectively disposed at the left upper corner, the left lower corner, the upper corner, and the right lower corner of the annular multi-directional key 82, so as to conform to the operation habit of the user, and the first function keyboards 611 can be configured to different application functions, such as an on/off key, an emergency call key, and the like. The second function keypad 612 may be configured as a numeric-letter input keypad, and the specific functions of the configuration are not particularly limited.

In the present embodiment, sound outlets 81 are formed between the key circuit board 10, the silica gel plate 40, the key silica gel 41, and the key pads 61. Specifically, the shape of the sound outlet 81 may be set according to actual requirements, for example, the sound outlet 81 may be any reasonable shape such as a circular hole, a triangular hole, etc., where in this embodiment, the sound outlet 81 is in a strip shape.

Compared with the prior art, the application provides a key assembly 100, wherein a fingerprint chip 22 is connected to a key circuit board 10 of the key assembly 100, a key body 70 is also connected to the key circuit board 10, the fingerprint chip 22 and the key body 70 are limited by a key bracket 50 and leak, a user can operate and control through the key body 70, the user can also operate and control through the fingerprint chip 22, and the fingerprint chip 22 can be used for identity authentication, so that the operation experience of mobile communication equipment is improved, and the privacy and operation safety of products are improved.

Correspondingly, the application also provides mobile communication equipment, which comprises the key assembly described in any embodiment. Referring to fig. 3, fig. 3 is an exploded view of a mobile communication device according to an embodiment of the application. The mobile communication device 200 further includes a device body, where the device body includes a housing, a speaker assembly 310 disposed inside the housing, and a face shell 320 disposed on a surface of the housing, and the face shell 320 is disposed on a sound emitting surface side of the speaker assembly 310. The key assembly 100 is disposed on a side of the face shell 320 opposite to the speaker assembly 310; the screen 90, the screen 90 is set up in the side of the face-piece 320 facing away from loudspeaker assembly 310; the key assembly 100 is disposed adjacent to the screen 90. Specifically, the mobile communication device 200 may be any reasonable device such as an interphone, an outdoor unit, an industrial personal computer, and the like. In the present embodiment, the mobile communication device 200 is specifically an intercom.

Compared with the prior art, the application provides the mobile communication equipment 200, wherein the key circuit board on the mobile communication equipment 200 is connected with the fingerprint chip and the key body, the fingerprint chip and the key body are limited by the key support and leak outwards, a user can operate and control through the key body and the fingerprint chip, and the fingerprint chip can be used for identity authentication, so that the operation experience of the mobile communication equipment 200 is improved, and the privacy and the operation safety of products are improved.

The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent principles of the present application or direct or indirect application in other related arts are included in the scope of the present application.

Claims (10)

1. A key assembly for placement on a mobile communication device, comprising:

the key circuit board is used for being fixedly arranged on the face shell of the mobile communication equipment;

the fingerprint chip is arranged on one surface of the key circuit board, which is opposite to the surface shell; the fingerprint chip is electrically connected with the key circuit board;

the key body is arranged on one surface of the key circuit board, which is opposite to the surface shell;

the key body comprises an annular multidirectional key which is arranged around the fingerprint chip in a circle.

2. The key assembly of claim 1, further comprising:

The key support is arranged on one surface of the key circuit board, which is opposite to the surface shell, and the key support forms a plurality of limiting holes, and the limiting holes are used for limiting the fingerprint chip and the key body on one surface of the key circuit board, which is opposite to the surface shell.

3. The key assembly of claim 2, further comprising:

The heightening piece is arranged between the key circuit board and the fingerprint chip and is used for lifting the fingerprint chip;

The metal ring is arranged on one surface of the key circuit board, which is opposite to the surface shell, the metal ring is limited by the limiting hole on the key support, and the fingerprint chip is positioned in the metal ring.

4. The key assembly of claim 2, wherein the key body comprises:

the litter piece is arranged on one surface of the key circuit board, which is opposite to the face shell, and is attached to the key circuit board;

The mobile communication device comprises a key circuit board, a first adhesive, a second adhesive and a nest piece, wherein the key circuit board is fixedly arranged on a face shell of the mobile communication device through the first adhesive, the first adhesive is arranged along the edge of the key circuit board so as to play a role in sealing and waterproofing, the nest piece is fixedly arranged on the face shell of the mobile communication device through the second adhesive, and the second adhesive is arranged along the edge of the nest piece so as to play a role in sealing and waterproofing, and the nest piece covers the key circuit board.

5. The key assembly of claim 4, wherein the key body further comprises:

The silica gel plate is positioned between the key support and the litter piece, and the key support is limited and fixes the silica gel plate on the litter piece.

6. The key assembly of claim 5, wherein the key assembly comprises a plurality of keys,

The silica gel plate is provided with a plurality of key silica gel, the key silica gel is accommodated in the limiting holes one by one, and the key silica gel protrudes from the limiting holes and leaks out of one surface of the key support, which is opposite to the face shell.

7. The key assembly of claim 6, further comprising:

The keyboard board is fixed on the key support and comprises a plurality of pressing keyboards which can be pressed and movably arranged, and each pressing keyboard is fixed with each key silica gel in a one-to-one correspondence mode.

8. The key assembly of claim 7, wherein the key assembly comprises a plurality of keys,

The key body is provided with a containing through groove, and the fingerprint chip is positioned in the containing through groove and leaks out through the containing through groove;

The silica gel plate is provided with annular silica gel surrounding the through groove on the silica gel plate, the annular silica gel is arranged around the fingerprint chip in the through groove, and the keyboard plate comprises an annular push keyboard which is correspondingly fixed with the annular silica gel so as to form an annular multidirectional key surrounding the fingerprint chip;

The keyboard board further comprises a plurality of first functional keyboards, and the first functional keyboard arrays are arranged around the annular multidirectional keys;

The keyboard board also comprises a plurality of second functional keyboards, wherein the second functional keyboards are arranged in rows and columns, and the second functional keyboards are arranged on one side of the annular multidirectional keys.

9. The key assembly of claim 7, wherein the key assembly comprises a plurality of keys,

The key circuit board, the silica gel board, the key silica gel and the pressing keyboard are provided with sound outlet holes communicated with each other.

10. A mobile communication device comprising the key assembly of any one of claims 1-9;

The mobile communication device further includes:

The equipment body comprises a shell, a loudspeaker assembly arranged in the shell and a face shell positioned on the surface of the shell, wherein the face shell is positioned on one side of the sound emitting surface of the loudspeaker assembly; the key assembly is arranged on one side of the face shell, which is opposite to the loudspeaker assembly;

The screen body is arranged on one side of the face shell, which is opposite to the loudspeaker assembly; the key assembly is arranged adjacent to the screen body.