Fingerprint recognition module installation structure and electronic equipment

Abstract

The present invention provides a mounting structure of a fingerprint recognition module, comprising a housing, a fingerprint recognition module and a combination key; a mounting groove for assembling the combination key is provided on one side of the housing; the fingerprint recognition module comprises a module body and a first flexible circuit board electrically connected to the module body, the combination key comprises a key body and a second flexible circuit board electrically connected to the key body, the first flexible circuit board and the second flexible circuit board are arranged in the housing; the key body comprises a support portion and a first key and a second key arranged on both sides of the support portion, the support portion is recessed inward to form a groove, the module body is fixed in the groove and connected to the first flexible circuit board through the support portion, and one side of the first key and the second key is connected to the second flexible circuit board through the mounting groove. The present invention also provides an electronic device. The present invention solves the problem that the fingerprint module is arranged on the side, which is not conducive to fingerprint positioning, and has a simple structure.

Description

[Technical field]

[0001] The present invention belongs to the technical field of electronic equipment, and in particular relates to an installation structure of a fingerprint recognition module and an electronic equipment. [Background technology]

[0002] At present, fingerprint recognition has become one of the most popular and reliable personal identity authentication technologies, and fingerprint recognition systems have been widely used in many fields. The common locations where fingerprint recognition modules are installed on electronic devices such as mobile phones and tablets are mainly the front, back, and side. Generally speaking, front fingerprint recognition is more user-friendly and beautiful, but it is not conducive to increasing the screen-to-body ratio; while rear fingerprint recognition does not affect the screen-to-body ratio, but from the user interaction level, when holding an electronic device, only the index finger is convenient for operation, and the experience will be significantly reduced. At present, electronic devices using side fingerprint recognition technology are rare. Usually, the fingerprint recognition module is integrated with conventional buttons such as the power button. When in use, the button and the fingerprint recognition module move in the same direction as a whole, which is not conducive to fingerprint positioning, and the assembly structure is complex and has low practicality. In view of this, it is necessary to provide a fingerprint recognition module installation structure and electronic equipment to overcome the above defects. [Summary of the invention]

[0003] The present invention provides a mounting structure of a fingerprint recognition module and an electronic device which can solve the fingerprint positioning problem and are easy to assemble.

[0004] In order to solve the above problems, the present invention provides an installation structure of a fingerprint recognition module, including a shell, a fingerprint recognition module and a combination key; a mounting groove for assembling the combination key is opened on one side of the shell; the fingerprint recognition module includes a module body and a first flexible circuit board electrically connected to the module body, the combination key includes a key body and a second flexible circuit board electrically connected to the key body, the first flexible circuit board and the second flexible circuit board are arranged in the shell; the key body includes a supporting part and a first key and a second key arranged on both sides of the supporting part, the supporting part is recessed inwardly to form a groove, the module body is fixed in the groove and is connected to the first flexible circuit board through the supporting part, and one side of the first key and the second key is connected to the second flexible circuit board through the mounting groove.

[0005] In a preferred embodiment, one side of the first button and the second button respectively extends to form an extension portion, and both sides of the mounting groove extend into the mounting groove to form a limit platform corresponding to the extension portion, and a through hole for the extension portion to pass through is opened on the limit platform, and the support portion abuts against one side of the mounting groove, and the support portion and the limit platform are spaced apart and form a cavity for elastic deformation of the connection between the first button and the support portion and the connection between the second button and the support portion, so that the first button and the second button can produce elastic deformation.

[0006] In a preferred embodiment, a receiving groove connected to the mounting groove is provided on one side of the shell near the mounting groove, the second flexible circuit board is fixed in the receiving groove, a conductive base is fixed on each extension portion, and switches capable of elastically contacting the conductive base are provided at intervals on the second flexible circuit board.

[0007] In a preferred embodiment, it also includes a locking piece arranged in the receiving groove and used to limit the combination key, one side of the support portion extends into the receiving groove to form a plurality of hanging ears, and the locking piece is provided with a connecting hole for the extension portion and the hanging ear to pass through, and the locking piece includes a first stop surface close to the installation groove and a second stop surface opposite to the first stop surface, the first stop surface is in contact with the inner wall of the receiving groove, and the second stop surface cooperates with the hanging ear to limit.

[0008] In a preferred embodiment, the hanging ear includes a limiting end parallel to the second stopping surface, and the second stopping surface protrudes into the receiving groove to form a convex bump that abuts against the limiting end.

[0009] In a preferred embodiment, the module body includes 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.

[0010] In a preferred embodiment, the connection between the first button and the support portion and the connection between the second button and the support portion are arc-shaped on a side away from the cavity.

[0011] In a preferred embodiment, an independent button is further included. A fixing groove spaced apart from the mounting groove is opened on one side of the housing. The independent button is assembled in the fixing groove and is electrically connected to the second flexible circuit board.

[0012] In a preferred embodiment, the first button and the second button are both volume buttons, and the independent button is a power button.

[0013] In order to solve the above problem, the present invention further provides an electronic device, comprising the installation structure of the above fingerprint recognition module.

[0014] Compared with the prior art, the beneficial effect of the present invention lies in: by integrating the module body with the conventional buttons and fixing the module body, the problem that the fingerprint module is arranged on the side of the electronic device is not conducive to fingerprint positioning is solved, and the assembly structure is simple and space-saving, which can ensure that the front screen-to-body ratio of the electronic device is high and the back is beautiful and highly practical.

[0015] In order to make the above-mentioned objects, features and advantages of the invention more obvious and easy to understand, the preferred embodiments of the present invention are specifically cited below and described in detail with reference to the attached drawings.

Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 An exploded view of the installation structure of the fingerprint recognition module provided by the preferred embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the structure of the fingerprint recognition module after installation structure assembly provided by a preferred embodiment of the present invention;

[0019] Figure 3 A side view of the assembled mounting structure of the fingerprint recognition module provided by the preferred embodiment of the present invention;

[0020] Figure 4 for Figure 3 A cross-sectional view along section ZZ shown in ;

[0021] Figure 5 for Figure 4 A partial enlarged view of area A shown in FIG. [Specific implementation method]

[0022] In order to make the purpose, technical solution and beneficial technical effect of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, not for limiting the present invention.

[0023] See also Figures 1 to 5The embodiment of the present invention provides a mounting structure of a fingerprint recognition module, which specifically includes a housing 10, a fingerprint recognition module 20 and a combination key 30. A mounting groove 11 for assembling the combination key 30 is provided on one side of the housing 10. The fingerprint recognition module 20 includes a module body 21 and a first flexible circuit board 22 electrically connected to the module body 21, and the combination key 30 includes a key body 31 and a second flexible circuit board 32 electrically connected to the key body 31, and the first flexible circuit board 22 and the second flexible circuit board 32 are arranged in the housing 10. The key body 31 includes a support portion 311 and a first key 312 and a second key 313 arranged on both sides of the support portion 311, and the support portion 311 is recessed inward to form a groove 3111, and the module body 21 is fixed in the groove 3111 and connected to the first flexible circuit board 22 through the support portion 311, and one side of the first key 312 and the second key 313 is connected to the second flexible circuit board 32 through the mounting groove 11. In this embodiment, the module body 21 is fixed between the first button 312 and the second button 313, which saves space. When the module body 21 is operated, the module body 21 is fixed and does not move with the movement of the first button 312 or the second button 313, which is conducive to fingerprint positioning and realizing the fingerprint recognition function.

[0024] Preferably, one side of the first button 312 and the second button 313 are respectively extended to form an extension portion 314, and both sides of the mounting groove 11 extend into the mounting groove 11 to form a limit platform 111 corresponding to the extension portion 314, and a through hole 1111 is opened on the limit platform 111 for the extension portion 314 to pass through, and the support portion 311 is against one side of the mounting groove 11, and the support portion 311 and the limit platform 111 are spaced apart and form a cavity 112 for elastic deformation of the connection between the first button 312 and the support portion 311 and the connection between the second button 313 and the support portion 311, and the first button 312 and the second button 313 can generate elastic deformation, so that the user can achieve the key feel through elastic deformation when pressing the first button 312 or the second button 313, and at the same time does not affect the fixed structure of the module body 21.

[0025] Specifically, a receiving groove 12 connected to the mounting groove 11 is provided on one side of the housing 10 near the mounting groove 11, and the second flexible circuit board 32 is fixed in the receiving groove 12. A conductive base 315 is fixed on each extension 314, and a switch 321 in elastic contact with the conductive base 315 is provided on the second flexible circuit board 32 to realize the key function. In this embodiment, the conductive base 315 is 90-degree silicone, which has a high hardness and is conducive to reducing pressing wear; the switch 321 is a touch switch or a pot piece. When the first button 312 or the second button 313 is pressed, the conductive base 315 moves to the corresponding elastically contacted switch 321 and contacts with it. When the first button 312 or the second button 313 is pressed by the conductive base 315, the internal contact of the switch 321 is turned on, and the circuit of the second flexible circuit board 32 is contacted, thereby forming a loop and completing the electrical connection.

[0026] Furthermore, the installation structure of the fingerprint recognition module mentioned above also includes a locking member 40 disposed in the receiving groove 12 and used to limit the combination key 30. One side of the support portion 31 extends into the receiving groove 12 to form a plurality of hanging ears 316. The locking member 40 is provided with a connecting hole 41 through which the extension portion 314 and the hanging ears 316 can pass. The locking member 40 includes a first stop surface 42 close to the installation groove 11 and a second stop surface 43 opposite to the first stop surface 42. The first stop surface 42 is in contact with the inner wall of the receiving groove 12, and the second stop surface 43 cooperates with the hanging ears 316 to limit the position, thereby positioning the support portion 31 to prevent the key body 31 from falling off. In the specific implementation process, the structure of the hanging ears 316 depends on the specific electronic device structure.

[0027] In one embodiment, the support portion 311 is provided with a slot 3112 communicating with the groove 3111, and the module body 21 passes through the slot 3112 to connect with the first flexible circuit board 22. It should be noted that the positioning member 40 is provided with an assembly slot 44 corresponding to the slot 3112, so as to facilitate the first flexible circuit board 22 to pass through during assembly. In other embodiments, the support portion 311 may also be provided with a through hole through which the module body 21 can pass, or the size of the support portion 311 may be reduced so as to pass through from one side of the edge.

[0028] In one embodiment, the cross section of the hanging ear 316 is "L"-shaped and includes a limiting end 3151 parallel to the second abutting surface 43. The second abutting surface 43 protrudes into the receiving groove 12 to form a convex bump 431 against the limiting end 3151. The structure is simple, which is convenient for assembling the positioning member 40 to position it after installing the combination key 30. Furthermore, the positioning member 40 is flat and occupies a small space. The edge of the positioning member 40 is bent and extends toward the second flexible circuit board 32 to form an extension piece 45, which is convenient for taking during assembly.

[0029] Preferably, the module 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 pasted in the groove 3111 through an adhesive layer 213. The surface dyne value is greater than 32, which is conducive to the fixation of the module and the assembly of the overall structure. The structure of the reinforcing steel sheet 212 is not limited here, and the adhesive layer 213 is realized by back glue or dispensing process. It can be understood that the fingerprint chip 211 is encapsulated in a protective cover plate, and the protective cover plate can be made of sapphire, coating, ceramic or glass. The fingerprint chip 211 is used to collect the fingerprint image of the user's finger and extract the fingerprint features when the user's finger is pressed on the protective cover plate, and then transmit it to the mainboard of the electronic device through the first flexible circuit board 22 for processing to realize its function.

[0030] Preferably, the connection between the first button 312 and the support portion 311 and the connection between the second button 313 and the support portion 311 are arc-shaped on the side away from the cavity 112, which is conducive to a better pressing feel when the user operates.

[0031] See also Figure 1 and Figure 3 In one embodiment, the installation structure of the fingerprint recognition module also includes an independent button 50. A fixing groove 13 spaced from the installation groove 11 is provided on one side of the housing 10. The independent button 50 is assembled in the fixing groove 13 and is electrically connected to the second flexible circuit board 32. The structure is compact and consistent with the conventional button structure space. No additional structural space is required, which is convenient for processing. In one embodiment, the first button 312 and the second button 313 are both volume buttons, i.e., volume up buttons or volume down buttons. The independent button 50 is a power button, which conforms to the user's usage habits. In this embodiment, the independent button 50 is spaced from the button body 31 and arranged on the same side of the housing 10. In other embodiments, it can be arranged on two opposite sides.

[0032] Furthermore, an embodiment of the present invention also provides an electronic device, including the installation structure of the fingerprint recognition module in the above embodiment. Specifically, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a television set, or other products or components. In one embodiment, the electronic device is a mobile phone, and the above-mentioned housing 10 is specifically a middle frame structure of the mobile phone, and the module body 21 is arranged on the side (frame) around the display screen of the mobile phone.

[0033] The assembly process of the embodiment of the present invention is as follows: first, fix the second flexible circuit board 32 in the receiving groove 12, then assemble the combination button 30 in the installation groove 11, then assemble the positioning member 40 in the receiving groove 12 to position the combination button 30, and finally assemble the fingerprint recognition module 20.

[0034] It should be noted that the reference to "embodiment" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] The above description is only a preferred embodiment of the present invention, which is a further detailed description of the present invention in combination with a specific preferred embodiment, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fingerprint recognition module installation structure, characterized in that: The invention comprises a shell, a fingerprint recognition module and a combination key; a mounting groove for assembling the combination key is provided on one side of the shell; the fingerprint recognition module comprises a module body and a first flexible circuit board electrically connected to the module body, the combination key comprises a key body and a second flexible circuit board electrically connected to the key body, the first flexible circuit board and the second flexible circuit board are arranged in the shell; the key body comprises a supporting part and a first key and a second key arranged on both sides of the supporting part, the supporting part is recessed inwardly to form a groove, the module body is fixed in the groove and connected to the first flexible circuit board through the supporting part, one side of the first key and the second key is connected to the second flexible circuit board through the mounting groove, one side of the first key and the second key is respectively extended to form an extension part, both sides of the mounting groove extend into the mounting groove to form a limit platform corresponding to the extension part, a through hole for the extension part to pass through is provided on the limit platform, and the supporting part abuts against On one side of the mounting groove, the support portion and the limit platform are arranged at intervals and form a cavity for elastic deformation of the connection between the first button and the support portion and the connection between the second button and the support portion, the first button and the second button can generate elastic deformation, a receiving groove connected to the mounting groove is provided on one side of the shell body close to the mounting groove, the second flexible circuit board is fixed in the receiving groove, a conductive base is fixed on each extension portion, switches that can elastically contact the conductive base are provided at intervals on the second flexible circuit board, and also include a positioning member arranged in the receiving groove and used to limit the combination key, one side of the support portion extends into the receiving groove to form a plurality of hanging ears, the positioning member is provided with a connecting hole for the extension portion and the hanging ear to pass through, the positioning member includes a first stop surface close to the mounting groove and a second stop surface opposite to the first stop surface, the first stop surface is in contact with the inner wall of the receiving groove, and the second stop surface cooperates with the hanging ear for limiting.

2. The installation structure of the fingerprint recognition module according to claim 1, characterized in that: The hanging ear comprises a limiting end parallel to the second abutting surface, and the second abutting surface protrudes toward the receiving groove to form a convex bump abutting against the limiting end.

3. The installation structure of the fingerprint recognition module according to claim 1, characterized in that: The module body includes 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.

4. The installation structure of the fingerprint recognition module according to claim 1, characterized in that: The connection between the first button and the support portion and the connection between the second button and the support portion are in an arc shape on a side away from the cavity.

5. The installation structure of the fingerprint recognition module according to claim 1, characterized in that: It also includes an independent button. One side of the shell is provided with a fixing groove spaced apart from the mounting groove. The independent button is assembled in the fixing groove and is electrically connected to the second flexible circuit board.

6. The installation structure of the fingerprint recognition module according to claim 5, characterized in that: The first button and the second button are both volume buttons, and the independent button is a power button.

7. An electronic device, characterized in that: It comprises the installation structure of the fingerprint recognition module as described in any one of claims 1-6.

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