Testing tool suitable for optical fingerprint module

Abstract

The utility model relates to a testing tool suitable for an optical fingerprint module, which comprises a testing base, a first torsion ring arranged at one end of the testing base, a second torsion ring arranged at the other end of the testing base and corresponding to the first torsion ring, and a light equalizing plate arranged between the first torsion ring and the second torsion ring, an adjusting rod is connected between the light equalizing plate and the first torsion ring and between the light equalizing plate and the second torsion ring; the Chart chart is detachably arranged at the top end of the light equalizing plate; the test carrying block is fixedly arranged on the test base and is positioned right above the light equalizing plate; the replaceable limiting block is arranged in the test carrying block and is used for placing a fingerprint module; one end of the PCB adapter plate is connected with the fingerprint module through a probe, and the other end is connected with the mainboard through a pin header. According to the utility model, the requirement of different distances between fingerprint modules of different models and the chart graph during testing can be met, the universality of the whole testing tool is improved, and the testing tool can be suitable for testing the fingerprint modules of different models and is high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of optical testing, and in particular to a testing tool suitable for an optical fingerprint module. Background Art

[0002] The P value spacing between the fingerprint module placement slot and the chart in the existing optical fingerprint module testing tool is fixed and cannot be adjusted, so the optical fingerprint module testing tool can only test the same model of fingerprint module. If the user needs to test different fingerprint modules, because different fingerprint modules require different spacing between the fingerprint module placement slot and the chart, the user needs to frequently replace the optical fingerprint module testing tool to test different models of fingerprint modules, resulting in poor versatility of the optical fingerprint module testing tool; therefore, there is an urgent need for an optical fingerprint module testing tool that can adjust the P value spacing between the fingerprint module placement slot and the chart. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and to provide a tool suitable for an optical fingerprint module test, so as to solve the problem that the P value spacing between the fingerprint module placement slot and the chart in the existing optical fingerprint module test tool is fixed and cannot be adjusted, resulting in poor versatility of the optical fingerprint module test tool.

[0004] To achieve the above-mentioned purpose, the utility model provides a tool suitable for testing an optical fingerprint module, comprising a test base, and also comprising a first torsion ring installed at one end of the test base, a second torsion ring installed at the other end of the test base and corresponding to the first torsion ring, a light-scattering plate is provided between the first torsion ring and the second torsion ring, an adjustment rod is connected between the light-scattering plate and the first torsion ring and the second torsion ring, a Chart chart detachably installed on the top of the light-scattering plate, a test carrier fixedly installed on the test base and located directly above the light-scattering plate, a replaceable limit block installed in the test carrier and used to place a fingerprint module, a PCB adapter board installed in the test carrier, one end of the PCB adapter board is connected to the fingerprint module through a probe, and the other end is connected to the main board through a pin row, the first torsion ring and the second torsion ring drive the adjustment rod to move up and down, thereby driving the light-scattering plate to move simultaneously.

[0005] Preferably, the light scattering plate further comprises through holes formed at both ends of the light scattering plate and matched with the adjusting rods, and the adjusting rods pass through the through holes at both ends of the light scattering plate to connect the light scattering plate to the first torsion ring and the second torsion ring.

[0006] Preferably, the test carrier is in a hinge shape, and comprises a carrier bottom plate and a carrier pressure plate hinged to the upper end of the carrier bottom plate.

[0007] Preferably, it further comprises a compression buckle installed at one end of the quick-loading pressure plate, and the quick-loading pressure plate and the quick-loading bottom plate are opened and closed connected by the compression buckle.

[0008] Preferably, the replaceable limiting block is located in the carrier bottom plate, and a limiting groove for placing the fingerprint module is provided in the replaceable limiting block.

[0009] Preferably, the system further comprises a pressure head which is mounted on the fast pressing plate and is located directly above the limiting groove.

[0010] Preferably, the test base, the test carrier and the light scattering plate are all rectangular structures.

[0011] Preferably, the test carrier is fixedly connected to the test base by screws.

[0012] Preferably, the Chart is fixed on the light-homogenizing plate by screws.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a testing tool suitable for an optical fingerprint module. When testing the fingerprint module, the user drives the adjusting rod to move up and down by rotating the first torsion ring and the second torsion ring on both sides of the test base, so that the light scattering plate moves at the same time, and the P value spacing between the light scattering plate and the fingerprint module can be adjusted, so that the focus of the fingerprint module is more accurately scattered on the chart, and the test of the optical fingerprint module is completed more accurately. The utility model can meet the requirements of different spacings between fingerprint modules of different models and the chart during testing, improves the versatility of the entire testing tool, and can be applicable to the testing of fingerprint modules of different models, with high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of a fingerprint module suitable for an optical fingerprint module testing tool provided by an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of a Chart diagram applicable to an optical fingerprint module testing tool provided by an embodiment of the utility model;

[0018] Figure 3This is a schematic diagram of a PCB adapter board suitable for an optical fingerprint module testing tool provided by an embodiment of the utility model;

[0019] Figure 4 It is a top view of a test carrier suitable for an optical fingerprint module test tool provided by an embodiment of the utility model in a closed state (wherein the dotted line is the part hidden in the test carrier);

[0020] Figure 5 It is a front view of an overall exploded view of an optical fingerprint module testing tool provided by an embodiment of the utility model.

[0021] Included in the figure are:

[0022] 1. Test base; 2. First torsion ring; 3. Adjustment rod; 4. Light-distributing plate; 5. Chart; 6. Test carrier; 61. Carrier bottom plate; 611. Limiting groove; 62. Carrier pressure plate; 621. Pressing buckle; 622. Press head; 63. Replaceable limiting block; 7. Fingerprint module; 8. PCB adapter board; 81. Probe; 82. Pin header; 9. Light source; 10. Test main board; 11. Light source driver board; 12. Second torsion ring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is one embodiment of the utility model, not all embodiments of the utility model. Based on the embodiment of the utility model, all other embodiments of the utility model obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5 The present embodiment provides a tool for testing an optical fingerprint module, comprising a test base 1, a first twist ring 2 mounted at one end of the test base 1, a second twist ring 12 mounted at the other end of the test base 1 and corresponding to the first twist ring 2, the first twist ring 2 and the second twist ring 12 are hingedly mounted at opposite ends of the test base 1, a light scattering plate 4 is arranged between the first twist ring 2 and the second twist ring 12, an adjusting rod 3 is connected between the light scattering plate 4 and the first twist ring 2 and the second twist ring 12, and a removable Chart mounted on the top of the light scattering plate 4 Figure 5 , Chart Figure 5The test carrier 6 is fixed on the light scattering plate 4 by screws, and is fixed on the test base 1 and located directly above the light scattering plate 4. The test carrier 6 is fixedly connected to the test base 1 by screws. A replaceable limit block 63 installed in the test carrier 6 and used to place the fingerprint module 7, a PCB adapter board 8 installed in the test carrier 6, one end of the PCB adapter board 8 is connected to the fingerprint module 7 through a probe 81 for testing, and the other end is connected to the main board (not shown) through a pin row 82 for power. The first torsion ring 2 and the second torsion ring 12 drive the adjustment rod 3 to move up and down, thereby driving the light scattering plate 4 to move at the same time.

[0025] It should be noted that the adjusting rod 3 may be a threaded rod. Of course, the adjusting rod 3 may also be other types of spring members, which are not specifically limited here.

[0026] Specifically, the test base 1, the test carrier 6 and the diffuser plate 4 are all rectangular structures. A test tool suitable for an optical fingerprint module also includes through holes (not shown) opened at both ends of the diffuser plate 4 and matching with the adjustment rod 3. The adjustment rod 3 passes through the through holes at both ends of the diffuser plate 4 to connect the diffuser plate 4 to the first torsion ring 2 and the second torsion ring 12. The first torsion ring 2 and the second torsion ring 12 drive the adjustment rod 3 to move up and down, thereby driving the diffuser plate 4 and the Chart Figure 5 By moving at the same time, the P value spacing between the diffuser plate 4 and the fingerprint module 7 can be adjusted, so that the focus of the fingerprint module 7 is more accurately scattered on the diffuser plate 4. Figure 5 , and complete the test of the optical fingerprint module more accurately.

[0027] See also Figure 4 , the test carrier 6 is hinge-shaped, and the test carrier 6 includes a carrier bottom plate 61 and a carrier pressure plate 62 hinged at the upper end of the carrier bottom plate 61. A tool suitable for testing an optical fingerprint module also includes a press buckle 621 installed at one end of the carrier pressure plate 62, and the carrier pressure plate 62 and the carrier bottom plate 61 are opened and closed by the press buckle 621. The carrier pressure plate 62 and the carrier bottom plate 61 are buckled together by the press buckle 621 to facilitate the test of the optical fingerprint module. The replaceable limit block 63 is located in the carrier bottom plate 61 and is fixed in the carrier bottom plate 61 by screws. The limit groove 611 for placing the fingerprint module 7 in the replaceable limit block 63 enables the fingerprint module 7 to be stably placed in the test carrier 6. Among them, the replaceable limit block 63 is used to stably place the fingerprint module 7 in the test carrier 6, and different replaceable limit blocks 63 can be replaced when different fingerprint modules 7 need to be tested. A tool suitable for testing an optical fingerprint module also includes a pressure head 622 installed on the fast pressing plate 62 and located directly above the limiting groove 611 , and the pressure head 622 is used to stabilize the fingerprint module 7 placed in the limiting groove 611 .

[0028] See also Figure 5, the light source 9 is located below the test base 1. During the test, the light source 9 passes through the test base 1, and the light source 9, the test main board 10 and the light source driving board 11 are connected by wires. The installation and position of the light source 9, the test main board 10 and the light source driving board 11 are the same as the working principle of the existing module test device, and are not particularly limited here.

[0029] The working process of a tool for testing an optical fingerprint module in this embodiment is as follows:

[0030] When the user tests the fingerprint module 7, the user drives the adjusting rod 3 to move up and down by rotating the first torsion ring 2 and the second torsion ring 12 on both sides of the test base 1 left and right. The first torsion ring 2 and the second torsion ring 12 can be used to adjust the up and down height of the adjusting rod 3, thereby adjusting the light homogenizing plate 4 and the chart at the same time. Figure 5 The upper and lower heights of the light emitting plate 4 and the fingerprint module 7 are adjusted to adjust the P value spacing, so that the focus of the fingerprint module 7 is more accurately scattered to the Chart Figure 5 The test of optical fingerprint module can be completed more accurately.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any changes, modifications, substitutions, combinations, and simplifications made within the spirit and principles of the present invention should be equivalent replacement methods and should be included in the protection scope of the present invention.

Claims

1. A tool for testing an optical fingerprint module, comprising a test base (1), characterized in that: The test base (1) further comprises a first torsion ring (2) mounted at one end of the test base (1), a second torsion ring (12) mounted at the other end of the test base (1) and corresponding to the first torsion ring (2), a light scattering plate (4) being arranged between the first torsion ring (2) and the second torsion ring (12), an adjusting rod (3) being connected between the light scattering plate (4) and the first torsion ring (2) and the second torsion ring (12), a chart (5) being detachably mounted on the top of the light scattering plate (4), and being fixedly mounted on the test base (1) and positioned A test carrier (6) is located directly above the light scattering plate (4); a replaceable limit block (63) is installed in the test carrier (6) and is used to place a fingerprint module (7); a PCB adapter board (8) is installed in the test carrier (6); one end of the PCB adapter board (8) is connected to the fingerprint module (7) through a probe (81), and the other end is connected to the main board through a pin row (82); the first torsion ring (2) and the second torsion ring (12) drive the adjustment rod (3) to move up and down, thereby driving the light scattering plate (4) to move simultaneously.

2. The optical fingerprint module testing tool according to claim 1, characterized in that: It also includes through holes formed at both ends of the light scattering plate (4) and matching the adjustment rod (3); the adjustment rod (3) passes through the through holes at both ends of the light scattering plate (4) to connect the light scattering plate (4) to the first torsion ring (2) and the second torsion ring (12).

3. The optical fingerprint module testing tool according to claim 1, characterized in that: The test carrier (6) is in a hinge shape and comprises a carrier bottom plate (61) and a carrier pressure plate (62) hinged to the upper end of the carrier bottom plate (61).

4. The optical fingerprint module testing tool according to claim 3, characterized in that: It also includes a press buckle (621) installed at one end of the fast-loading pressure plate (62), and the fast-loading pressure plate (62) and the fast-loading bottom plate (61) are connected in an opening and closing manner via the press buckle (621).

5. The optical fingerprint module testing tool according to claim 3, characterized in that: The replaceable limiting block (63) is located inside the carrier bottom plate (61), and a limiting groove (611) for placing the fingerprint module (7) is provided inside the replaceable limiting block (63).

6. The optical fingerprint module testing tool according to claim 5, characterized in that: It also includes a pressure head (622) installed on the fast pressure plate (62) and located directly above the limiting groove (611).

7. The optical fingerprint module testing tool according to claim 1, characterized in that: The test base (1), the test carrier (6) and the light-diffusion plate (4) are all rectangular structures.

8. The optical fingerprint module testing tool according to claim 1, characterized in that: The test carrier (6) is fixedly connected to the test base (1) via screws.

9. The optical fingerprint module testing tool according to claim 1, characterized in that: The Chart (5) is fixed on the light-diffusing plate (4) by means of screws.

Images