Fingerprint module testing device

Abstract

The utility model discloses a fingerprint module testing device which comprises a testing jig, the testing jig is provided with a sinking groove and a first positioning groove used for positioning and installing a fingerprint chip of a fingerprint module, the first positioning groove is located on the two opposite sides of the sinking groove, the depth of the first positioning groove is smaller than that of the sinking groove, and a testing sensing element is arranged in the sinking groove. The detection module is used for detecting whether a gasket exists on the fingerprint chip; when the fingerprint chip is installed in the first positioning groove, the test sensing element corresponds to the installation position of the gasket on the fingerprint chip, and the gasket on the fingerprint chip can trigger the test sensing element. By arranging the test sensing element in the sinking groove, the fingerprint chip with the gasket can be detected by the test sensing element, and the fingerprint chip without the gasket cannot be detected by the test sensing element due to insufficient height, so that whether the gasket exists on the fingerprint chip or not can be distinguished by 100% to avoid missing detection and reduce fatigue of manual inspection.

Description

Technical Field

[0001] The utility model relates to the technical field of fingerprint module testing, in particular to a fingerprint module testing device. Background Art

[0002] With the popularization of electronic devices, for considerations of security and practicality, more and more electronic devices have fingerprint recognition functions. By using fingerprint recognition, the electronic device can be conveniently unlocked without entering a cumbersome unlocking password. Moreover, users can use the fingerprint recognition function in the application store and other payment scenarios, or users can complete identity verification through fingerprint recognition, such as logging in to an email box, etc.

[0003] When assembling the fingerprint module, a TPU sheet (plastic sheet) needs to be assembled on the back of the module to make the fingerprint module more stable when installed on the electronic device. However, in the mass production process, it is easy to cause the situation of missing assembly of the TPU sheet. Manual visual inspection is prone to omission, with slow efficiency and greatly increased eye fatigue of the workers. Summary of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a fingerprint module testing device to solve the problems of easy omission and fatigue in manual inspection of missing TPU sheets in the prior art.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] The utility model provides a fingerprint module testing device, including a test fixture. A sunk groove and a first positioning groove for positioning and installing the fingerprint chip of the fingerprint module are provided on the test fixture. The first positioning groove is located on opposite sides of the sunk groove and has a depth less than that of the sunk groove. A test sensing element is arranged in the sunk groove and is used to detect whether the gasket exists on the fingerprint chip.

[0007] When the fingerprint chip is installed in the first positioning groove, the test sensing element corresponds to the installation position of the gasket on the fingerprint chip, and the gasket on the fingerprint chip can trigger the test sensing element.

[0008] Further, there is a distance between the top surface of the test sensing element and the bottom surface of the first positioning groove, and the distance is less than or equal to the thickness of the gasket on the fingerprint chip.

[0009] Further, the test sensing element is a button, and the sum of the distance and the pressing stroke of the button is equal to the thickness of the gasket.

[0010] Further, the test sensing element is a contact sensing element, and the distance is equal to the thickness of the gasket.

[0011] Further, a floating positioning plate is provided on the test fixture, the floating positioning plate can move up and down relative to the test fixture, the first positioning groove is provided on the floating positioning plate, and there is a distance between the top surface of the test sensing element and the bottom surface of the first positioning groove;

[0012] The test sensing element is a button, and the sum of the displacement of the floating positioning plate moving up and down and the thickness of the gasket is equal to the sum of the distance and the pressing stroke of the button; or, the test sensing element is a contact sensing element, and the sum of the displacement of the floating positioning plate moving up and down and the thickness of the gasket is equal to the distance.

[0013] Further, the floating positioning plate is detachably connected to the test fixture.

[0014] Further, a second positioning groove for positioning and installing the FPC of the fingerprint module is provided on the test fixture, and one end of the second positioning groove is communicated with the first positioning groove.

[0015] Further, a detection interface is provided on the test fixture, and the detection interface corresponds to the connection interface of the fingerprint module.

[0016] Further, the fingerprint module testing device includes a pressing plate, one end of the pressing plate is rotatably connected to the test fixture, and a pressing block corresponding to the detection interface is provided on the pressing plate.

[0017] Further, a buckle is provided at one end of the pressing plate, and a clamping groove cooperating with the buckle is provided on the test fixture.

[0018] Further, the fingerprint module testing device includes a mounting fixing plate, the test fixture is fixed on the mounting fixing plate, and a plurality of fixing holes are provided on the mounting fixing plate.

[0019] The beneficial effect of the present utility model is that by providing a sunken groove on the test fixture and a test sensing element in the sunken groove, when the fingerprint chip is installed in the first positioning groove, the gasket on the fingerprint chip can trigger the test sensing element, so that the fingerprint chip with a gasket can be detected by the test sensing element, while the fingerprint chip without a gasket cannot be detected by the test sensing element due to insufficient height, thereby 100% distinguishing whether there is a gasket on the fingerprint chip to avoid missed detection and reduce the fatigue of manual inspection. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of the fingerprint module testing device in the present utility model;

[0021] Figure 2 is Figure 1 An enlarged schematic view of part A in

[0022] Figure 3 A planar structure schematic view of the fingerprint module in the present utility model;

[0023] Figure 4 A three-dimensional structure schematic view of the fingerprint module testing device in the present utility model with the fingerprint module installed;

[0024] Figure 5 A three-dimensional structure schematic view of the fingerprint module testing device in the present utility model when testing the fingerprint module;

[0025] Figure 6 A longitudinal sectional structure schematic view of the fingerprint module testing device in the present utility model when testing the fingerprint module;

[0026] Figure 7 is Figure 6 An enlarged schematic view of part B in

[0027] In the figure: fingerprint module testing device 10, sinking groove 101, first positioning groove 102, second positioning groove 103, testing fixture 11, floating positioning plate 111, clamping groove 112, testing sensing element 12, detection interface 13, pressing plate 14, pressing block 141, buckle member 142, installation fixing plate 15, fixing hole 151; fingerprint module 20, fingerprint chip 21, gasket 211, FPC 22, connection interface 23. Specific embodiments

[0028] The application concepts of the present disclosure will hereinafter be described using terms that are commonly used by those skilled in the art to convey the substance of their work to other skilled artisans in the art. However, these application concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein. These embodiments are provided to make the present disclosure more thorough and complete and to fully convey the scope it encompasses to those skilled in the art. It should also be noted that these embodiments are not mutually exclusive. Components, steps, or elements from one embodiment may be assumed to be present or used in another embodiment. Without departing from the scope of the embodiments of the present disclosure, various alternative and / or equivalent implementations may be substituted for the specific embodiments shown and described. This application is intended to cover any modifications or variations of the embodiments discussed herein. It will be apparent to those skilled in the art that alternative embodiments may be practiced using only some of the aspects described. For purposes of illustration, specific numbers, materials, and configurations are described in the embodiments, however, those skilled in the art may practice alternative embodiments without these specific details. In other instances, well-known features may be omitted or simplified so as not to obscure the illustrative embodiments.

[0029] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application. It should also be understood that the terms "first", "second", etc. used herein are only for distinction in name and do not limit the quantity and order.

[0030] In the description of this application, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following specifically describes the specific implementation manners, structures, features, and effects of the side fingerprint module and the electronic device proposed according to the present utility model in detail with reference to the drawings and preferred embodiments:

[0032] Figure 1 It is a schematic perspective view of the fingerprint module testing device in the present utility model. Figure 2 isFigure 1 An enlarged schematic view of part A. Figure 3 It is a schematic plan view of the fingerprint module in the present utility model. Figure 4 It is a schematic three-dimensional structure view of the fingerprint module testing device in the present utility model with the fingerprint module installed. Figure 5 It is a schematic three-dimensional structure view of the fingerprint module testing device in the present utility model when testing the fingerprint module. Figure 6 It is a schematic longitudinal sectional view of the fingerprint module testing device in the present utility model when testing the fingerprint module. Figure 7 Is Figure 6 An enlarged schematic view of part B.

[0033] As Figures 1 to 7 shown, a fingerprint module testing device 10 provided by the present utility model. The fingerprint module testing device 10 in this application is used to detect whether there is a gasket 211 on the fingerprint chip 21 of the fingerprint module 20 and to test whether the function of the fingerprint module 20 is normal. Among them, as Figure 3 shown, the fingerprint module 20 includes a fingerprint chip 21, an FPC 22 (flexible printed circuit board), and a connection interface 23. The fingerprint chip 21 is installed at one end of the FPC 22, and the connection interface 23 is installed at the other end of the FPC 22. The connection interface 23 is used to connect the fingerprint module 20 to an electronic device, so that the electronic device has a fingerprint recognition function. There is a gasket 211 on the fingerprint chip 21, making the fingerprint module 20 more stable when installed on the electronic device. The gasket 211 is usually made of TPU material. As for other structures of the fingerprint module 20, reference can be made to the prior art and will not be elaborated here.

[0034] As Figure 1 And Figure 2 shown, the fingerprint module testing device 10 includes a test fixture 11. There is a sink 101 and a first positioning groove 102 for positioning and installing the fingerprint chip 21 of the fingerprint module 20 on the test fixture 11. The first positioning groove 102 is located on opposite sides of the sink 101 and has a depth less than that of the sink 101. A test sensing element 12 is provided in the sink 101; when the fingerprint chip 21 is installed in the first positioning groove 102, the test sensing element 12 corresponds to the installation position of the gasket 211 on the fingerprint chip 21 and is used to detect whether there is a gasket 211 on the fingerprint chip 21. When the fingerprint chip 21 is installed in the first positioning groove 102 and the fingerprint chip 21 is pressed, the gasket 211 on the fingerprint chip 21 can trigger the test sensing element 12 to detect that there is a gasket 211 on the fingerprint chip 21.

[0035] In this application, a sinking groove 101 is provided on the test fixture 11, and a test sensing element 12 is provided in the sinking groove 101. The distance between the top surface of the test sensing element 12 and the bottom surface of the first positioning groove 102 enables the fingerprint chip 21 with the gasket 211 to be detected by the test sensing element 12. Since there is a distance between the top surface of the test sensing element 12 and the bottom surface of the first positioning groove 102, the fingerprint chip 21 without the gasket 211 cannot be detected by the test sensing element 12 due to insufficient height. Thus, it is possible to distinguish with 100% whether the gasket 211 exists on the fingerprint chip 21, so as to avoid missed inspection and reduce the fatigue of manual inspection.

[0036] In this embodiment, a floating positioning plate 111 is provided on the test fixture 11. The floating positioning plate 111 can move up and down relative to the test fixture 11. The floating positioning plate 111 forms the side wall of the sinking groove 101, and the first positioning groove 102 is provided on the floating positioning plate 111. The test sensing element 12 is a button. The sum of the displacement of the floating positioning plate 111 moving up and down and the thickness of the gasket 211 is equal to the sum of the distance and the pressing stroke of the button. For example, the distance is equal to the thickness of the gasket 211, and the pressing stroke of the button is equal to the displacement of the floating positioning plate 111 moving up and down; or, the distance is greater than the thickness of the gasket 211 and there is a first distance difference (the first distance difference = the distance - the thickness of the gasket 211), and the displacement of the floating positioning plate 111 moving up and down is equal to the sum of the pressing stroke of the button and the first distance difference; or, the distance is less than the thickness of the gasket 211 and there is a second distance difference (the second distance difference = the thickness of the gasket 211 - the distance), and the pressing stroke of the button is equal to the sum of the displacement of the floating positioning plate 111 moving up and down and the second distance difference. When the fingerprint chip 21 is installed in the first positioning groove 102 of the floating positioning plate 111, by pressing the fingerprint chip 21, the floating positioning plate 111 will move downward, so that the fingerprint chip 21 with the gasket 211 can trigger the button to detect the presence of the gasket 211, while the fingerprint chip 21 without the gasket 211 cannot trigger the button due to insufficient height to detect the absence of the gasket 211. Specifically, an installation groove for installing the floating positioning plate 11 is provided on the test fixture 11. The floating positioning plate 11 is placed in the installation groove, and a return spring (compression spring) is provided between the floating positioning plate 11 and the bottom wall of the installation groove to facilitate the reset of the floating positioning plate 11.

[0037] In another embodiment, the test sensing element 12 can also be a contact sensing element. As long as the gasket 211 contacts the contact sensing element, it can be detected whether the gasket 211 exists on the fingerprint chip 21. Among them, the sum of the displacement of the floating positioning plate 111 moving up and down and the thickness of the gasket 211 is equal to the distance. For example, the distance is greater than the thickness of the gasket 211 and there is a third distance difference (the third distance difference = the distance - the thickness of the gasket 211), and the displacement of the floating positioning plate 111 moving up and down is equal to the third distance difference.

[0038] Furthermore, the floating positioning plate 111 is detachably connected to the test fixture 11, facilitating the replacement of the floating positioning plate 111 to test fingerprint chips 21 of different models.

[0039] In other embodiments, the floating positioning plate 11 may be differently arranged, or the floating positioning plate 111 may be fixed to the test fixture 11. There is a distance between the top surface of the test sensing element 12 and the bottom surface of the first positioning groove 102, and the distance is less than or equal to the thickness of the gasket 211 on the fingerprint chip 21. For example, if the test sensing element 12 is a button, the sum of the distance and the pressing stroke of the button may also be equal to the thickness of the gasket 211, so that the floating positioning plate 111 does not need to be provided, or the floating positioning plate 111 is fixed to the test fixture 11, and it is also possible to detect whether the gasket 211 exists on the fingerprint chip 21. Alternatively, if the test sensing element 12 is a contact sensing element, the distance is equal to the thickness of the gasket 211, so that it is possible to directly place the fingerprint chip 21 to detect whether the gasket 211 exists, and there is no need to press the fingerprint chip 21 downward forcefully.

[0040] In this embodiment, the test fixture 11 is provided with a second positioning groove 103 for positioning and installing the FPC 22 of the fingerprint module 20. One end of the second positioning groove 103 is communicated with the first positioning groove 102 to facilitate the positioning and installation of the entire fingerprint module 20 and prevent the FPC 22 of the fingerprint module 20 from being not properly installed.

[0041] Furthermore, the test fixture 11 is provided with a detection interface 13, and the detection interface 13 corresponds to the connection interface 23 of the fingerprint module 20. Among them, the detection interface 13 is arranged at the end of the second positioning groove 103 far from the first positioning groove 102 and corresponds to the connection interface 221 on the FPC 22. During detection, the detection interface 13 is electrically connected to the connection interface 23 to test whether the functions of the fingerprint module 20 are normal; since it is necessary to press the fingerprint module 20 when testing whether the functions of the fingerprint module 20 are normal, it is thus possible to simultaneously detect whether the gasket 211 exists on the fingerprint chip 21.

[0042] It can be understood that both the test sensing element 12 and the detection interface 13 need to be electrically connected to an external computer, so as to identify through software on the computer whether the gasket 211 exists on the fingerprint chip 21 of the fingerprint module 20 and whether the functions of the fingerprint module 20 are normal.

[0043] Further, the fingerprint module testing device 10 includes a pressing plate 14. One end of the pressing plate 14 is rotatably connected to the testing fixture 11. A pressing block 141 corresponding to the detection interface 13 is provided on the pressing plate 14. A buckle member 142 is provided at one end of the pressing plate 14, and a clamping groove 112 cooperating with the buckle member 142 is provided on the testing fixture 11. Among them, the buckle member 142 is rotatably connected to the pressing plate 14, so as to facilitate releasing the clamping state between the buckle member 142 and the clamping groove 112 after the detection is completed, so as to open the pressing plate 14. During the detection, the pressing block 141 on the pressing plate 14 can exert a pressing force on the connection interface 221 on the FPC 22 to ensure that the detection interface 13 is connected to the connection interface 23 in place.

[0044] In this embodiment, the fingerprint module testing device 10 includes a mounting and fixing plate 15. The testing fixture 11 is fixed on the mounting and fixing plate 15. A plurality of fixing holes 151 are provided on the mounting and fixing plate 15, so as to facilitate fixing the entire fingerprint module testing device 10 on the workbench.

[0045] As Figure 4 , Figure 7 shown, the detection steps are as follows: First, install the fingerprint module 20 on the fingerprint module testing device 10. Among them, the fingerprint chip 21 is installed in the first positioning groove 102, and the gasket 211 on the fingerprint chip 21 corresponds to the test sensing element 12 ( Figure 7 ), the FPC 22 is installed in the second positioning groove 103, and the connection interface 23 is electrically connected to the detection interface 13; then press down the pressing plate 14 so that the detection interface 13 is connected to the connection interface 23 in place; finally, press the fingerprint chip 21 of the fingerprint module 20 to test whether the function of the fingerprint module 20 is normal, and at the same time detect whether there is a gasket 211 on the fingerprint chip 21. Thus, it is possible to distinguish 100% whether there is a gasket 211 on the fingerprint chip 21 to avoid missed detection and reduce the fatigue of manual inspection.

[0046] In this article, the orientation words such as up, down, left, right, front, and back are defined based on the positions of the structures in the drawings and the positions of the structures relative to each other, only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the orientation words should not limit the scope of protection requested by this application. It should also be understood that the terms "first" and "second" used in this article are only for distinction in name and do not limit the quantity and order.

[0047] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, may make some changes or modifications using the technical content disclosed above, which are equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fingerprint module testing device, characterized in that: The test fixture (11) comprises a sink (101) and a first positioning groove (102) for positioning and installing a fingerprint chip (21) of a fingerprint module (20), wherein the first positioning groove (102) is located at two opposite sides of the sink (101) and has a depth less than the depth of the sink (101), and a test sensing element (12) is provided in the sink (101) and is used to detect whether a gasket (211) is present on the fingerprint chip (21); When the fingerprint chip (21) is installed in the first positioning groove (102), the test sensing element (12) corresponds to the installation position of the gasket (211) on the fingerprint chip (21), and the gasket (211) on the fingerprint chip (21) can trigger the test sensing element (12).

2. The fingerprint module testing device according to claim 1, characterized in that: There is a distance between the top surface of the test sensing element (12) and the bottom surface of the first positioning groove (102), and the distance is less than or equal to the thickness of the gasket (211) on the fingerprint chip (21).

3. The fingerprint module testing device according to claim 2, characterized in that: The test sensing element (12) is a button, and the sum of the distance and the pressing stroke of the button is equal to the thickness of the gasket (211).

4. The fingerprint module testing device according to claim 2, characterized in that: The test sensing element (12) is a contact sensing element, and the distance is equal to the thickness of the gasket (211).

5. The fingerprint module testing device according to claim 1, characterized in that: The test fixture (11) is provided with a floating positioning plate (111), and the floating positioning plate (111) can move up and down relative to the test fixture (11), the first positioning groove (102) is provided on the floating positioning plate (111), and there is a distance between the top surface of the test sensing element (12) and the bottom surface of the first positioning groove (102); The test sensing element (12) is a button, and the sum of the displacement of the floating positioning plate (111) moving up and down and the thickness of the gasket (211) is equal to the sum of the distance and the pressing stroke of the button; Alternatively, the test sensing element (12) is a contact sensing element, and the sum of the displacement of the floating positioning plate (111) moving up and down and the thickness of the gasket (211) is equal to the distance.

6. The fingerprint module testing device according to any one of claims 1 to 5, characterized in that: The test fixture (11) is provided with a second positioning groove (103) for positioning the FPC (22) for installing the fingerprint module (20), and one end of the second positioning groove (103) is connected to the first positioning groove (102).

7. The fingerprint module testing device according to any one of claims 1 to 5, characterized in that: The test fixture (11) is provided with a detection interface (13), and the detection interface (13) corresponds to the connection interface (23) of the fingerprint module (20).

8. The fingerprint module testing device according to claim 7, characterized in that: The fingerprint module testing device (10) comprises a pressing plate (14), one end of which is rotatably connected to the testing fixture (11), and a pressing block (141) corresponding to the detection interface (13) is provided on the pressing plate (14).

9. The fingerprint module testing device according to claim 8, characterized in that: A snap-fitting piece (142) is provided at one end of the pressing plate (14), and a snap-fitting groove (112) cooperating with the snap-fitting piece (142) is provided on the testing fixture (11).

10. The fingerprint module testing device according to any one of claims 1 to 5, characterized in that: The fingerprint module testing device (10) comprises a mounting fixing plate (15), the testing fixture (11) is fixed on the mounting fixing plate (15), and the mounting fixing plate (15) is provided with a plurality of fixing holes (151).

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