Mounting structure of side fingerprint key
By merging the power button and the rear fingerprint button into a side fingerprint button, the problems of high cost, large space and lack of aesthetics of the existing fingerprint button structure are solved, achieving the effects of cost reduction, space optimization and convenient battery removal.
Patent Information
- Application Number
- CN202423245766.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing fingerprint key designs suffer from high manufacturing costs, large space occupation, poor aesthetics, and susceptibility to dirt. In particular, rear-mounted fingerprint keys are easily damaged when removing the battery cover and affect the phone's overall integrity.
Design an installation structure for a side fingerprint button, which combines the power button and the rear fingerprint button into a single side fingerprint button. The side button, a flexible fingerprint circuit board, a fingerprint socket, and a fingerprint contact pad are combined and installed on the front shell of the electronic device. The ribbon cable of the flexible fingerprint circuit board is pressed under the sticker in the battery compartment to avoid exposure. A support arm and a limiting block fix the side button, and the contact point is used for press recognition.
It reduces production and assembly costs, optimizes space utilization, maintains the phone's aesthetics, avoids fingerprint damage, facilitates battery removal, and provides more assembly space.
Smart Images

Figure CN223679961U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electronic equipment assembly technical field, especially a kind of installation structure of side fingerprint button. BACKGROUND
[0002] Fingerprint key is a common physical button of smart phone: the physical fingerprint key commonly used by mobile phone has front home key fingerprint, rear fingerprint key, side key fingerprint key, as shown in Figure 1 、 Figure 2 , because rear fingerprint is not easy to be damaged when battery cover is disassembled, so currently detachable battery full-screen mobile phone almost all adopt the structure of rear fingerprint key.
[0003] The existing fingerprint key structure design has the following problems:
[0004] (1) as shown in Figure 1 、 2 , compared with side fingerprint, rear fingerprint is changed from original side fingerprint key to power on / off key 7+rear fingerprint key 8, so that raw material production is more than one material, and it needs to be produced separately, which increases manufacturing cost, and when assembling whole machine, it needs to increase a assembling process, which increases assembly and control cost.
[0005] (2) as shown in Figure 2 , the whole machine assembly space is limited, and the use of such assembly structure occupies a large space, which compresses the stacking space of other devices.
[0006] (3) as shown in Figure 2 , although rear fingerprint solves the problem of wide chin of mobile phone, it affects the integrity of mobile phone, and digging a hole on the back plate 9 of mobile phone looks unsightly. In addition, when your mobile phone is placed on the table, you must pick up the mobile phone to unlock the fingerprint, and the side can be directly unlocked. Rear fingerprint has another disadvantage that it is easy to dirty the lens. When the user uses fingers to find the position of rear fingerprint, it may accidentally touch the lens module close to it. INVENTION CONTENTS
[0007] The utility model provides a kind of installation structure of side fingerprint button, to solve the problems existing in the prior art of fingerprint key structure.
[0008] The utility model provides a kind of installation structure of side fingerprint key, the side fingerprint key is installed on electronic equipment, the side fingerprint key includes side key, fingerprint flexible circuit board, fingerprint male seat, fingerprint touch piece, the electronic equipment includes front shell, battery, the side of the front shell is equipped with side key installation groove, the side key is connected in the side key installation groove of front shell, the battery is connected in front shell, the side key surface docking fingerprint touch piece, one end of the fingerprint flexible circuit board is connected fingerprint touch piece, the other end of the fingerprint flexible circuit board is connected fingerprint male seat, the fingerprint male seat docking circuit board of electronic equipment, the wire of the fingerprint flexible circuit board is pressed between battery and front shell.
[0009] As a further improvement of the utility model, the front shell is provided with a battery compartment for placing the battery, and the wire of the fingerprint flexible circuit board is pressed under the sticker of the battery compartment.
[0010] As a further improvement of the utility model, one end of the fingerprint flexible circuit board is bent and extends from the side of the battery compartment and protrudes at the side key installation groove, the fingerprint touch piece is connected to the side of the front shell and aligned with the side key installation groove, and the fingerprint touch piece is connected to the protruding position of one end of the fingerprint flexible circuit board.
[0011] As a further improvement of the utility model, the other end of the fingerprint flexible circuit board is bent and extends from the top of the battery compartment and protrudes at the circuit board, and the fingerprint male seat is connected to the protruding position of the other end of the fingerprint flexible circuit board.
[0012] As a further improvement of the utility model, a limiting block is arranged in the front shell near the side key installation groove, the side key is provided with a support arm extending from both ends, the support arm is arranged between the limiting block and the side of the front shell, the end of the support arm is provided with a flange, and the flange hooks the limiting block.
[0013] As a further improvement of the utility model, a protruding contact is arranged on the inner side of the side key, and the contact is in contact with the fingerprint touch piece when pressed.
[0014] The utility model has the beneficial effects that the power on / off key and the rear fingerprint key are combined into a side fingerprint key, the consumer can easily disassemble the battery cover without damaging the side fingerprint, the production mold opening cost and subsequent assembly labor cost of the rear fingerprint are saved, one rear fingerprint assembly process is reduced during the whole machine assembly, the space occupancy rate is optimized, and more space is left for the assembly of other devices of the whole machine. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the structure section view of the existing power on / off key;
[0016] Figure 2 is the structure section view of the existing rear fingerprint key;
[0017] Figure 3 is the overall view of the side fingerprint key mounting structure of the utility model;
[0018] Figure 4 is the first enlarged view of the side fingerprint key mounting structure of the utility model;
[0019] Figure 5 is the second enlarged view of the side fingerprint key mounting structure of the utility model. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further explained in detail below in combination with the drawings and examples.
[0021] In order to meet the new EU regulation that the mobile phone battery 6 must be detachable and the customer demand ID, the detachable battery 6 structure + side fingerprint unlocking, the utility model designs a kind of installation structure of side fingerprint key to meet the ID design and optimize the problems existing in the present fingerprint key.
[0022] As shown in Figures 3 to 5 The utility model discloses a kind of installation structure of side fingerprint key, side fingerprint key is installed on electronic equipment, side fingerprint key includes side key 1, fingerprint flexible circuit board 3, fingerprint male seat 4, fingerprint contact piece 2, electronic equipment includes front shell 5, battery 6, the side of front shell 5 is equipped with side key installation groove 51, side key 1 is connected in the side key installation groove 51 of front shell 5, battery 6 is connected in front shell 5, side key 1 surface docking fingerprint contact piece 2, one end of fingerprint flexible circuit board 3 is connected fingerprint contact piece 2, the other end of fingerprint flexible circuit board 3 is connected fingerprint male seat 4, fingerprint male seat 4 docking the circuit board of electronic equipment, the wire of fingerprint flexible circuit board 3 is pressed between battery 6 and front shell 5.
[0023] Fingerprint contact piece 2 is arranged at the position of side key 1, when user presses side key 1, the process of fingerprint identification can be triggered simultaneously, fingerprint male seat 4 is used to connect circuit board, after sensing fingerprint, fingerprint contact piece 2 will transmit signal to circuit board by fingerprint flexible circuit board 3, fingerprint male seat 4, and information processing and identification are carried out by circuit board.The wire of fingerprint flexible circuit board 3 is located between front shell 5 and battery 6, away from the position of rear shell, can avoid the influence on fingerprint flexible circuit board 3 when rear shell is disassembled, and it is convenient for user to disassemble rear shell and replace battery 6.
[0024] Front shell 5 is equipped with battery compartment for placing battery 6, and the wire of fingerprint flexible circuit board 3 is pressed under the sticker of battery compartment.The sticker of battery compartment makes the position of the inner side of front shell 5 more flat, facilitates the placement of battery 6, and pressing fingerprint flexible circuit board 3 under the sticker can fully wrap and protect the wire of fingerprint flexible circuit board 3, avoid exposure, also avoid contacting fingerprint flexible circuit board 3 when battery 6 is replaced and possibly causing damage.
[0025] One end of the fingerprint flexible circuit board 3 is bent and extends from the side edge of the battery compartment and protrudes at the side key mounting groove 51, the fingerprint contact 2 is connected to the side edge of the front shell 5 and aligned with the side key mounting groove 51, the fingerprint contact 2 is inserted into the protruding position of one end of the fingerprint flexible circuit board 3. In order to dock with the side key 1, the fingerprint contact 2 is arranged at a position close to the side key mounting groove 51, and one end of the fingerprint flexible circuit board 3 needs to be bent and extend outward along the compartment wall of the battery compartment to the side key mounting groove 51 in order to be connected with the fingerprint contact 2, which facilitates the docking with the fingerprint contact 2.
[0026] The other end of the fingerprint flexible circuit board 3 is bent and extends from the top of the battery compartment and protrudes at the circuit board, and the fingerprint male seat 4 is inserted into the protruding position of the other end of the fingerprint flexible circuit board 3. Since the interface of the circuit board is located outside the battery compartment, the other end of the fingerprint flexible circuit board 3 needs to be bent and extend outward along the compartment wall of the battery compartment to the interface of the circuit board in order to be inserted into the fingerprint male seat 4, which facilitates the docking of the fingerprint male seat 4 with the interface of the circuit board.
[0027] A limiting block 52 is arranged in the front shell 5 at a position close to the side key mounting groove 51, and the side key 1 is provided with a support arm 11 extending at both ends, the support arm 11 is arranged between the limiting block 52 and the side edge of the front shell 5, and the end of the support arm 11 is provided with a turned edge 12 which hooks the limiting block 52. The structure of the limiting block 52 and the side edge of the front shell 5 clamps the position of the support arm 11, thereby fixing the two ends of the side key 1. When the side key 1 is pressed, the support arm 11 will be slightly deformed to provide elastic force for the reset of the side key 1, and the structure of the turned edge 12 of the support arm 11 hooks the limiting block 52 to prevent the side key 1 from slipping, thereby fastening the side key 1 in the side key mounting groove 51.
[0028] The inner side of the side key 1 is provided with a protruding contact 13 which is in contact with the fingerprint contact 2 when pressed. The contact 13 is used to conduct the fingerprint contact 2 when the side key 1 is pressed, and when the contact 13 is in contact with the fingerprint contact 2, the fingerprint contact 2 collects the fingerprint of the user's finger and transmits it to the circuit board for identification processing.
[0029] The assembly process of the side fingerprint key is as follows: the side key 1 is inserted into the position aligned with the side key mounting groove 51, the support arm 11 of the side key 1 is clamped between the limiting block 52 and the front shell 5, and the turned edge 12 hooks one side of the limiting block 52, the fingerprint contact 2 is fixed at the position of the side key mounting groove 51, and the fingerprint contact 2 is aligned with the contact 13 of the side key 1, the wire arrangement part of the fingerprint flexible circuit board 3 is pressed under the sticker of the battery compartment, the other end of the fingerprint flexible circuit board 3 protruding from the battery compartment is connected with the fingerprint male seat 4, and the fingerprint male seat 4 is inserted into the interface of the circuit board, and the assembly is completed.
[0030] The utility model discloses a switch key 7 and rear fingerprint key 8 are combined as one side fingerprint key, in order to facilitate consumer to disassemble backplate 9 and do not damage side fingerprint, therefore side fingerprint design assembly is in front shell 5, and the fingerprint flexible circuit board 3 of side fingerprint key arranges line pressure under battery compartment paste paper, spares the production open mould cost of rear fingerprint and subsequent assembly manpower cost, and when whole machine assembly reduces a rear fingerprint assembly technology, and the space occupancy ratio of optimization has more space allowance for whole machine other device assembly.
[0031] The design makes the detachable battery 6 of the mobile phone can be equipped with side fingerprint, and will not cause the damage and displacement of the fingerprint because of the disassembly of the battery 6, simultaneously, the functions of the original key 7+rear fingerprint key 8 are combined to the side fingerprint, the production cost and assembly cost are reduced, and more space is left for the mobile phone assembly.
[0032] The above content is further detailed description of the utility model in combination with specific preferred embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary skilled person in the art to which the utility model belongs, on the premise of not departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the utility model.
Claims
1. A mounting structure of a side fingerprint key, characterized by, The side fingerprint key is installed on an electronic device, the side fingerprint key comprises a side key, a fingerprint flexible circuit board, a fingerprint female seat and a fingerprint contact piece, the electronic device comprises a front shell and a battery, the side edge of the front shell is provided with a side key mounting groove, the side key is connected in the side key mounting groove of the front shell, the battery is connected in the front shell, the surface of the side key is connected with the fingerprint contact piece, one end of the fingerprint flexible circuit board is connected with the fingerprint contact piece, the other end of the fingerprint flexible circuit board is connected with the fingerprint female seat, the fingerprint female seat is connected with the circuit board of the electronic device, and the wire of the fingerprint flexible circuit board is pressed between the battery and the front shell.
2. The side fingerprint key mounting structure according to claim 1, wherein The front shell is provided with a battery compartment for placing the battery, and the wire of the fingerprint flexible circuit board is pressed under the sticker of the battery compartment.
3. The side fingerprint key mounting structure according to claim 2, wherein One end of the fingerprint flexible circuit board is bent and extended from the side edge of the battery compartment and protrudes at the side key mounting groove, the fingerprint contact piece is connected to the side edge of the front shell and aligned with the side key mounting groove, and the fingerprint contact piece is connected to the protruding position of one end of the fingerprint flexible circuit board.
4. The side fingerprint key mounting structure according to claim 2, wherein The other end of the fingerprint flexible circuit board is bent and extended from the top of the battery compartment and protrudes at the circuit board, and the fingerprint female seat is connected to the protruding position of the other end of the fingerprint flexible circuit board.
5. The side fingerprint key mounting structure according to claim 1, wherein The front shell is provided with a limiting block near the side key mounting groove, the side key is provided with a supporting arm at both ends, the supporting arm is arranged between the limiting block and the side edge of the front shell, the end of the supporting arm is provided with a turn-up, and the turn-up hooks the limiting block.
6. The side fingerprint key mounting structure according to claim 1, wherein The inner side of the side key is provided with a protruding contact point, and the contact point is in contact with the fingerprint contact piece when pressed.