CN210015452U

CN210015452U - Mounting structure and electronic equipment of fingerprint identification module

Info

Publication number: CN210015452U
Application number: CN201921012831.5U
Authority: CN
Inventors: 赵从宇
Original assignee: Wingtech Communication Co Ltd
Current assignee: Wingtech Communication Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-02-04
Anticipated expiration: 2029-07-02

Abstract

The utility model provides an installation structure of a fingerprint identification module, which comprises a shell, a fingerprint identification module and a combined key; one side of the shell is provided with a mounting groove for assembling the combined key; the fingerprint identification module comprises a module main body and a first flexible circuit board electrically connected with the module main body, the combined key comprises a key main body and a second flexible circuit board electrically connected with the key main body, and the first flexible circuit board and the second flexible circuit board are arranged in the shell; the key body comprises a supporting part, a first key and a second key, wherein the first key and the second key are arranged on two sides of the supporting part, the supporting part is inwards recessed to form a groove, the module body is fixed in the groove and penetrates through the supporting part to be connected with the first flexible circuit board, and one side of the first key and one side of the second key penetrate through the mounting groove to be connected with the second flexible circuit board. The utility model also provides an electronic equipment. The utility model provides a side is located to the fingerprint module and is unfavorable for the problem of fingerprint location, simple structure.

Description

Mounting structure and electronic equipment of fingerprint identification module

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of electronic equipment, especially, relate to a mounting structure and electronic equipment of fingerprint identification module.

[ background of the invention ]

At present, fingerprint identification becomes one of the most popular and reliable personal identity authentication technologies, and fingerprint identification systems are widely applied in many fields. Common positions of the fingerprint identification module carried on electronic equipment such as a mobile phone and a tablet personal computer mainly comprise a front side, a back side and a side surface. Generally, the preposed fingerprint identification is more humanized and beautiful, but is not beneficial to increasing the screen occupation ratio; the screen occupation ratio is not influenced by the postposition fingerprint identification, but from the user interaction aspect, the operation is convenient only by the forefinger when the electronic equipment is held by hands, and the experience feeling is obviously reduced. The electronic equipment who adopts side fingerprint identification technique is rare at present, is usually integrated with fingerprint identification module and conventional button such as power key, and the button is unfavorable for the fingerprint location with the whole syntropy motion of fingerprint identification module during the use, and package assembly is complicated, and the practicality is low. In view of the above, it is desirable to provide a mounting structure of a fingerprint identification module and an electronic device to overcome the above-mentioned drawbacks.

[ Utility model ] content

The utility model provides a can solve fingerprint positioning problem and be convenient for the mounting structure and the electronic equipment of fingerprint identification module of equipment.

In order to solve the above problems, the utility model provides an installation structure of a fingerprint identification module, which comprises a shell, a fingerprint identification module and a combined key; one side of the shell is provided with a mounting groove for assembling the combined key; the fingerprint identification module comprises a module main body and a first flexible circuit board electrically connected with the module main body, the combined key comprises a key main body and a second flexible circuit board electrically connected with the key main body, and the first flexible circuit board and the second flexible circuit board are arranged in the shell; the module comprises a module body and a mounting groove, wherein the module body comprises a supporting part, a first key and a second key, the first key and the second key are arranged on two sides of the supporting part, the supporting part is inwards recessed to form a groove, the module body is fixed in the groove and penetrates through the supporting part and the first flexible circuit board, and one side of the first key and one side of the second key penetrate through the mounting groove and the second flexible circuit board.

In a preferred embodiment, one side of each of the first key and the second key extends to form an extending portion, two sides of the mounting groove extend into the mounting groove to form a limiting table corresponding to the extending portion, a through hole through which the extending portion can pass is formed in the limiting table, the supporting portion abuts against one side of the mounting groove, the supporting portion and the limiting table are arranged at intervals and form a cavity through which the joint of the first key and the supporting portion and the joint of the second key and the supporting portion can be elastically deformed, and the first key and the second key can be elastically deformed.

In a preferred embodiment, an accommodating groove communicated with the mounting groove is formed in one side of the housing close to the mounting groove, the second flexible circuit board is fixed in the accommodating groove, a conductive base is fixed on each extending portion, and switches capable of elastically contacting with the conductive bases are arranged on the second flexible circuit board at intervals.

In a preferred embodiment, still including locating in the accepting groove and be used for right the combination button carries out spacing screens piece, a lateral of supporting part extends in the accepting groove and forms a plurality of hangers, seted up on the screens piece and supply the extension with the connecting hole that the hangers wore out, the screens piece including be close to the first surface of stopping of mounting groove and with the second surface of stopping that first surface of stopping carried on the back mutually supports, first surface of stopping with the inner wall laminating of accepting groove, the second support the surface with the hanger cooperation is spacing.

In a preferred embodiment, the hanging lug comprises a limiting end parallel to the second stopping surface, and the second stopping surface protrudes into the accommodating groove to form a convex hull abutting against the limiting end.

In a preferred embodiment, the module main body comprises a fingerprint chip and a reinforcing steel sheet for fixing the fingerprint chip, and the reinforcing steel sheet is adhered to the groove through an adhesive layer.

In a preferred embodiment, the connection between the first key and the support portion and the connection between the second key and the support portion are arc-shaped on the side away from the cavity.

In a preferred embodiment, the flexible printed circuit board further includes an independent key, a fixing groove spaced apart from the mounting groove is formed in one side of the housing, and the independent key is assembled in the fixing groove and electrically connected to the second flexible printed circuit board.

In a preferred embodiment, the first key and the second key are both volume keys, and the independent key is a power key.

In order to solve the above problem, the utility model also provides an electronic equipment, including the mounting structure of foretell fingerprint identification module.

Compared with the prior art, the beneficial effects of the utility model reside in that: through with module main part and conventional button integration and the fixed setting of module main part, solve the fingerprint module and locate the problem that the electronic equipment side is unfavorable for the fingerprint location, and package assembly is simple, saves space, can guarantee that electronic equipment's front screen occupation of land ratio and the back is pleasing to the eye, and the practicality is high.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an exploded view of a mounting structure of a fingerprint identification module according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of an assembled mounting structure of a fingerprint identification module according to a preferred embodiment of the present invention;

fig. 3 is a side view of the mounting structure of the fingerprint identification module according to the preferred embodiment of the present invention after assembly;

FIG. 4 is a cross-sectional view taken along section Z-Z as shown in FIG. 3;

fig. 5 is a partially enlarged view of the area a shown in fig. 4.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

Referring to fig. 1 to 5, an embodiment of the present invention provides an installation structure of a fingerprint identification module, which specifically includes a housing 10, a fingerprint identification module 20, and a combination key 30. One side of the housing 10 is opened with a mounting groove 11 for assembling the combination key 30. The fingerprint identification module 20 includes a module main body 21 and a first flexible circuit board 22 electrically connected to the module main body 21, the combination key 30 includes a key main body 31 and a second flexible circuit board 32 electrically connected to the key main body 31, and the first flexible circuit board 22 and the second flexible circuit board 32 are disposed in the housing 10. The key body 31 includes a supporting portion 311, and a first key 312 and a second key 313 disposed on two sides of the supporting portion 311, the supporting portion 311 is recessed inward to form a groove 3111, the module body 21 is fixed in the groove 3111 and passes through the supporting portion 311 to be connected to the first flexible circuit board 22, and one sides of the first key 312 and the second key 313 pass through the mounting groove 11 to be connected to the second flexible circuit board 32. In this embodiment, the module main body 21 is fixed between the first button 312 and the second button 313, so that the space is saved, and when the module main body 21 is operated, the module main body 21 is fixed and does not move along with the movement of the first button 312 or the second button 313, which is beneficial to fingerprint positioning and fingerprint identification.

Preferably, one side of the first key 312 and one side of the second key 313 extend to form an extension 314, two sides of the mounting groove 11 extend into the mounting groove 11 to form a limiting platform 111 corresponding to the extension 314, a through hole 1111 through which the extension 314 can pass is formed on the limiting platform 111, the supporting portion 311 abuts against one side of the mounting groove 11, the supporting portion 311 and the limiting platform 111 are arranged at an interval and form a cavity 112 through which the joint of the first key 312 and the supporting portion 311 and the joint of the second key 313 and the supporting portion 311 can be elastically deformed, the first key 312 and the second key 313 can be elastically deformed, so that a user can realize key hand feeling through elastic deformation when pressing the first key 312 or the second key 313, and the fixing structure of the module main body 21 is not affected.

Specifically, an accommodating groove 12 communicated with the mounting groove 11 is formed in one side of the housing 10 close to the mounting groove 11, the second flexible circuit board 32 is fixed in the accommodating groove 12, a conductive base 315 is fixed on each extending portion 314, and the second flexible circuit board 32 is provided with switches 321 which are in elastic contact with the conductive bases 315 in a one-to-one correspondence manner, so as to realize the key function. In the embodiment, the conductive base 315 is 90-degree silica gel, which has high hardness and is beneficial to reducing press abrasion; the switch 321 is a tact switch or a snap dome, when the first button 312 or the second button 313 is pressed, the conductive base 315 moves towards the corresponding switch 321 in elastic contact and contacts with the switch, when the first button 312 or the second button 313 is pressed by the conductive base 315, the internal contact conduction of the switch 321 is realized, and the circuit of the second flexible circuit board 32 is contacted, so that a loop is formed, and the electrical connection is completed.

Further, the mounting structure of the fingerprint identification module further includes a position-locking member 40 disposed in the receiving slot 12 and used for limiting the position of the combination key 30. A plurality of hanging lugs 316 are formed by extending the supporting portion 31 in the lateral accommodating groove 12, a connecting hole 41 for the extension portion 314 and the hanging lug 316 to pass through is formed in the clamping member 40, the clamping member 40 comprises a first abutting surface 42 close to the accommodating groove 11 and a second abutting surface 43 opposite to the first abutting surface 42, the first abutting surface 42 is attached to the inner wall of the accommodating groove 12, the second abutting surface 43 is matched with the hanging lugs 316 for limitation, the supporting portion 31 is positioned, the key body 31 is prevented from falling off, and in the specific implementation process, the structure of the hanging lugs 316 is determined by a specific electronic device structure.

In one embodiment, the supporting portion 311 is formed with a slot 3112 communicating with the groove 3111, and the module body 21 passes through the slot 3112 to be connected to the first flexible circuit board 22. It should be noted that the locking member 40 has a mounting groove 44 corresponding to the slot 3112 for the first flexible circuit board 22 to pass through during mounting. In other embodiments, the supporting portion 311 may also be formed with a through hole through which the module body 21 can pass, or the supporting portion 311 is reduced in size and penetrates out from one side of the edge.

In one embodiment, the hanging lug 316 has an "L" shape in cross section and includes a position-limiting end 3151 parallel to the second stopping surface 43, and the second stopping surface 43 protrudes into the receiving groove 12 to form a protrusion 431 abutting against the position-limiting end 3151, so that the structure is simple, and the locking member 40 is assembled to position the combination key 30 after the combination key is installed. Furthermore, the clamping member 40 is flat, occupies a small space, and the edge of the clamping member 40 is bent and extends towards the second flexible circuit board 32 to form an extending piece 45, so that the clamping member can be conveniently taken during assembly.

Preferably, the module main body 21 includes a fingerprint chip 211 and a reinforcing steel sheet 212 for fixing the fingerprint chip 211, the reinforcing steel sheet 212 is adhered to the groove 3111 through an adhesive layer 213, a surface dyne value is greater than 32, which is beneficial to fixing the module, and is convenient for assembling the whole structure, the structure of the reinforcing steel sheet 212 is not limited here, and the adhesive layer 213 is realized through a back adhesive or a dispensing process. It can be understood that the fingerprint chip 211 is packaged in the protective cover plate, the protective cover plate can be made of sapphire, coated type, ceramic or glass, and the fingerprint chip 211 is used for collecting fingerprint images of the fingers of the user and extracting fingerprint characteristics when the fingers of the user press the protective cover plate, and then the fingerprint images are transmitted to the main board of the electronic device through the first flexible circuit board 22 to be processed, so that the functions of the electronic device are realized.

Preferably, the connection between the first button 312 and the supporting portion 311 and the connection between the second button 313 and the supporting portion 311 are arc-shaped on the side away from the cavity 112, which is beneficial for the user to obtain better pressing feeling during operation.

Referring to fig. 1 and 3, in an embodiment, the mounting structure of the fingerprint identification module further includes an independent key 50, one side of the housing 10 is formed with a fixing groove 13 spaced apart from the mounting groove 11, and the independent key 50 is assembled in the fixing groove 13 and electrically connected to the second flexible circuit board 32, so that the structure is compact, the space is consistent with that of a conventional key structure, no additional structural space is required, and the processing is convenient. In one embodiment, the first key 312 and the second key 313 are volume keys, i.e. volume up key or volume down key, and the independent key 50 is a power key, which is suitable for the user's habit. In this embodiment, the independent keys 50 and the key main bodies 31 are disposed at intervals on the same side of the housing 10, and in other embodiments, they may be disposed on two opposite sides.

Further, the embodiment of the present invention provides an electronic device, including the mounting structure of the fingerprint identification module in the above embodiment. Specifically, the electronic device may be a product or a component such as a mobile phone, a tablet computer, a notebook computer, a television, and the like. In one embodiment, the electronic device is a mobile phone, the housing 10 is a middle frame structure of the mobile phone, and the module main body 21 is disposed on a side (a frame) of the mobile phone having a periphery of a display screen.

The utility model discloses the assembly process of embodiment does: the second flexible circuit board 32 is fixed in the accommodating groove 12, the combination key 30 is assembled in place in the mounting groove 11, the locking member 40 is assembled in the accommodating groove 12 to position the combination key 30, and the fingerprint identification module 20 is assembled.

It should be appreciated that reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The foregoing is merely a preferred embodiment of the present invention, and further details of the present invention are described in conjunction with specific preferred embodiments, which should not be construed as limiting the practice of the invention to these descriptions. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The mounting structure of the fingerprint identification module is characterized by comprising a shell, the fingerprint identification module and a combined key; one side of the shell is provided with a mounting groove for assembling the combined key; the fingerprint identification module comprises a module main body and a first flexible circuit board electrically connected with the module main body, the combined key comprises a key main body and a second flexible circuit board electrically connected with the key main body, and the first flexible circuit board and the second flexible circuit board are arranged in the shell; the module comprises a module body and a mounting groove, wherein the module body comprises a supporting part, a first key and a second key, the first key and the second key are arranged on two sides of the supporting part, the supporting part is inwards recessed to form a groove, the module body is fixed in the groove and penetrates through the supporting part and the first flexible circuit board, and one side of the first key and one side of the second key penetrate through the mounting groove and the second flexible circuit board.

2. The mounting structure of fingerprint identification module of claim 1, wherein one side of the first button and one side of the second button extend to form an extension portion, two sides of the mounting groove extend into the mounting groove to form a limit platform corresponding to the extension portion, the limit platform is provided with a through hole for the extension portion to pass through, the support portion abuts against one side of the mounting groove, the support portion and the limit platform are arranged at an interval and form a cavity for elastic deformation of a connection between the first button and the support portion and a connection between the second button and the support portion, and the first button and the second button can generate elastic deformation.

3. The mounting structure of fingerprint identification module of claim 2 wherein one side of the housing near the mounting slot is provided with a receiving slot communicating with the mounting slot, the second flexible circuit board is fixed in the receiving slot, each extending portion is fixed with a conductive base, and the second flexible circuit board is provided with a switch at intervals and capable of elastically contacting with the conductive base.

4. The mounting structure of fingerprint identification module according to claim 3, further comprising a position-retaining member disposed in the receiving slot and used for limiting the position of the combination key, wherein one side of the supporting portion extends into the receiving slot to form a plurality of hanging lugs, the position-retaining member is provided with a connecting hole for the extension portion and the hanging lugs to pass through, the position-retaining member includes a first stopping surface close to the receiving slot and a second stopping surface opposite to the first stopping surface, the first stopping surface is attached to the inner wall of the receiving slot, and the second stopping surface is matched with the hanging lugs for limiting.

5. The mounting structure of fingerprint recognition module of claim 4 wherein said hanging lug includes a limiting end parallel to said second stop surface, said second stop surface protruding into said receiving slot to form a convex hull abutting against said limiting end.

6. The mounting structure of a fingerprint identification module of claim 1, wherein the module body comprises a fingerprint chip and a reinforcing steel sheet for fixing the fingerprint chip, and the reinforcing steel sheet is adhered in the groove through an adhesive layer.

7. The mounting structure of fingerprint identification module of claim 2 wherein the connection between the first button and the support portion and the connection between the second button and the support portion are arc-shaped.

8. The mounting structure of fingerprint recognition module of claim 1 further comprising an independent key, wherein one side of said housing defines a fixing groove spaced from said mounting groove, said independent key is assembled in said fixing groove and electrically connected to said second flexible circuit board.

9. The mounting structure of fingerprint identification module of claim 8 wherein said first key and said second key are volume keys and said independent key is a power key.

10. An electronic device comprising the fingerprint recognition module according to any one of claims 1 to 9.