Self-weight fingerprint test structure and crimping jig

Abstract

The utility model discloses a self-weight fingerprint test structure and a crimping tool, and belongs to the field of display panel test. The self-weight fingerprint test structure comprises a movable plate, a pressure sensor and a fingerprint test assembly. The movable plate is movably arranged on the carrier plate, and the pressure sensor is inserted into the carrier plate; the fingerprint testing assembly comprises a pressing block, a balancing weight and a fingerprint module, the pressing block is slidably arranged on the movable plate, the pressing block is provided with a first stepped hole, the balancing weight is detachably arranged on the fingerprint module, one end of the fingerprint module is provided with a first T-shaped structure, and the first T-shaped structure is slidably inserted into the first stepped hole; the other end of the fingerprint module is used for pressing the fingerprint area of the display panel. According to the self-weight type fingerprint test structure and the crimping jig provided by the embodiment of the utility model, the fingerprint pressure on the display panel can be kept constant in batch detection, and accurate detection is realized.

Description

Technical Field

[0001] This utility model belongs to the field of display panel testing, specifically relating to a self-weight fingerprint testing structure and a pressing fixture. Background Technology

[0002] With the rapid development of display panels, the market demand for mobile phone screens is increasing, and consumers are pursuing better display effects, leading to a greater variety of products. Among these, fingerprint unlocking has become a standard feature in mobile phone use, and fingerprint testing is widely used in the display industry for mobile phones, computers, and wearable products.

[0003] Currently, the existing testing structures for fingerprint detection mainly use a spring-pressure method. This involves adjusting the compression of the spring to regulate the pressure exerted on the display panel by the fingerprint, ensuring that the force on the display panel remains within a set range during fingerprint testing. However, during batch testing, the spring is prone to fatigue after repeated compressions, making the fingerprint pressure on the display panel uncontrollable and resulting in inaccurate detection. Utility Model Content

[0004] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a self-weight fingerprint testing structure and pressing fixture. Its purpose is to ensure that the fingerprint pressure on each display panel is always equal to the total weight of the counterweight and the fingerprint module during batch testing, thereby maintaining a constant fingerprint pressure on the display panel, achieving accurate testing, and avoiding the problem of uncontrollable fingerprint pressure on the display panel after multiple presses by the spring.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a self-weight fingerprint testing structure, which includes a movable plate, a pressure sensor, and a fingerprint testing component.

[0006] The movable plate is movably arranged on the carrier plate, and the pressure sensor is inserted into the carrier plate;

[0007] The fingerprint testing component includes a pressing block, a counterweight, and a fingerprint module. The pressing block is slidably arranged on the movable plate and has a first stepped hole. The counterweight is detachably arranged on the fingerprint module. One end of the fingerprint module has a first T-shaped structure, which is slidably inserted into the first stepped hole. The other end of the fingerprint module is used to press the fingerprint area of ​​the display panel, and when the other end of the fingerprint module presses the fingerprint area of ​​the display panel, the protrusion of the first T-shaped structure disengages from the stepped surface of the first stepped hole.

[0008] Optionally, the pressing block has a clearance hole, and one end of the counterweight passes through the clearance hole and is connected to one end of the fingerprint module by a bolt.

[0009] Optionally, the pressing block has a second stepped hole, and the movable plate has a second T-shaped structure, with the second T-shaped structure and the second stepped hole slidingly engaged.

[0010] Optionally, the pressing block has a first limiting surface on the side facing the movable plate, and the movable plate has a second limiting surface on the side facing the pressing block. The second limiting surface is arranged opposite to the first limiting surface to restrict the sliding of the pressing block after contact.

[0011] Optionally, a first elastic element for driving the pressing block to slide and then reset is sandwiched between the pressing block and the movable plate.

[0012] Optionally, a first hook is hinged to each of the two oppositely arranged sides of the pressing block, and the movable plate has two spaced protrusions. The first hook is used to hook the corresponding protrusion to maintain the distance between the protrusion of the first T-shaped structure and the stepped surface of the first stepped hole.

[0013] Optionally, the fingerprint testing structure further includes a hinge seat and a limiting seat, both of which are used to fix the carrier plate and are arranged at intervals. One side of the movable plate is hinged to the hinge seat to flip the movable plate. The limiting seat has a second hook arranged movably, which is used to hook the other side of the movable plate.

[0014] Optionally, the movable plate includes a movable part and an adjusting part. The movable part is movably arranged on the carrier plate, the adjusting part is located on the movable part, the pressing block is slidably arranged on the adjusting part, and the adjusting part is used to adjust the position of the pressing block in a first direction, a second direction, and a third direction.

[0015] Optionally, a positioning pin is inserted into the movable plate, and the pressing block has a positioning hole, in which the positioning pin is inserted.

[0016] Secondly, this utility model provides a crimping fixture, which includes a self-weight fingerprint testing structure as described in the first aspect.

[0017] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0018] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0019] (1) In the embodiment of this utility model, the fingerprint pressure on each display panel is always equal to the total weight of the counterweight and the fingerprint module during batch testing, thereby maintaining constant fingerprint pressure on the display panel, achieving accurate testing, and avoiding the problem of uncontrollable fingerprint pressure on the display panel after multiple presses of the spring.

[0020] (2) In the self-weight fingerprint testing structure provided in this embodiment of the present invention, the pressing block has a clearance hole, and one end of the counterweight block passes through the clearance hole and is connected to one end of the fingerprint module by a bolt. By setting the clearance hole, the connection between the counterweight block and the fingerprint module can be facilitated, and the counterweight block can be easily replaced by bolt.

[0021] (3) In the self-weight fingerprint testing structure provided in this embodiment of the present invention, the pressing block and the fingerprint module are linked together through the first step hole and the first T-shaped structure, and the two can be regarded as a whole. The pressing block can be limited by the cooperation of the second step hole, so as to prevent the pressing block and the fingerprint module from detaching from the moving plate from above.

[0022] (4) In the self-weight fingerprint testing structure provided in this embodiment of the present invention, the first elastic element can drive the pressing block to move upward and reset after the fingerprint test is completed, thus avoiding the need for manual upward movement of the pressing block after the test. In addition, by setting the first hook and the protrusion, when the pressing block moves down to the test position, the first hook can hook the protrusion, thereby limiting the pressing block and keeping it in the test position.

[0023] (5) In the self-weight fingerprint testing structure provided in this embodiment of the present invention, the movable plate can be flipped through the hinged arrangement, thereby realizing the position adjustment of the movable plate and facilitating the placement and removal of the display panel. Furthermore, the movable plate can be kept in a locked state by the second hook, avoiding the problem of the movable plate accidentally opening and affecting the fingerprint testing of the display panel.

[0024] (6) For the self-weight fingerprint testing structure provided in this utility model embodiment, the horizontal and vertical positions of the pressing block are adjusted by the adjustment part, and finally the position of the fingerprint module is adjusted to adapt to the fingerprint area of ​​different types of display panels. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the first state of a self-weight fingerprint testing structure provided in an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the pressing block provided in this embodiment of the utility model;

[0027] Figure 3This is a schematic diagram of the fingerprint module provided in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the second state of a self-weight fingerprint testing structure provided in an embodiment of this utility model;

[0029] Figure 5 This is a schematic diagram of the third state of a self-weight fingerprint testing structure provided in an embodiment of this utility model;

[0030] Figure 6 This is a top view of the fingerprint testing component provided in this embodiment of the present invention;

[0031] Figure 7 yes Figure 6 Sectional view along line AA;

[0032] Figure 8 This is a structural schematic diagram of a crimping fixture provided in an embodiment of this utility model.

[0033] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0034] 1. Movable plate; 11. Second T-shaped structure; 12. Second limiting surface; 13. Protrusion; 131. Inclined surface; 14. Movable part; 15. Adjustment part; 151. First plate; 152. Second plate; 16. Positioning pin; 2. Pressure sensor; 3. Fingerprint testing component; 31. Pressing block; 311. First step hole; 312. Alternating hole; 313. Second step hole; 314. First limiting surface; 315. First hook; 316. Second elastic element; 32. Counterweight; 321. Bolt; 33. Fingerprint module; 331. First T-shaped structure; 332. Connecting block; 333. Fingerprint block; 4. First elastic element; 5. Hinge seat; 6. Limiting seat; 61. Second hook; 7. Support block; 100. Carrier plate. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] Example:

[0041] Figure 1 This is a schematic diagram of the first state of a self-weight fingerprint testing structure provided in an embodiment of this utility model, as shown below. Figure 1 As shown, the self-weight fingerprint testing structure includes a movable plate 1, a pressure sensor 2, and a fingerprint testing component 3.

[0042] The movable plate 1 is movably arranged on the carrier plate 100, and the pressure sensor 2 is inserted into the carrier plate 100.

[0043] The fingerprint testing component 3 includes a pressing block 31, a counterweight 32, and a fingerprint module 33. The pressing block 31 is slidably arranged on the movable plate 1. Figure 2 This is a schematic diagram of the structure of the pressing block 31 provided in this embodiment of the utility model, as shown below. Figure 2 As shown, the pressing block 31 has a first stepped hole 311, and the counterweight block 32 is detachably arranged on the fingerprint module 33. Figure 3 This is a schematic diagram of the structure of the fingerprint module 33 provided in this embodiment of the present invention, as shown below. Figure 3 As shown, one end of the fingerprint module 33 has a first T-shaped structure 331, which is slidably inserted into the first stepped hole 311. The other end of the fingerprint module 33 is used to press the fingerprint area of ​​the display panel. When the other end of the fingerprint module 33 presses the fingerprint area of ​​the display panel, the protrusion of the first T-shaped structure 331 disengages from the stepped surface of the first stepped hole 311.

[0044] In the self-weight fingerprint testing structure provided in this embodiment of the present invention, when performing fingerprint testing on a display panel, firstly, the movable plate 1 and the pressure sensor 2 are installed on the carrier plate 100, and the display panel is placed horizontally on the carrier plate 100. The pressure sensor 2 is inserted into the top of the carrier plate 100. When the display panel is squeezed, it will squeeze the pressure sensor 2, thereby allowing the fingerprint pressure to be read through the pressure sensor 2. Then, the display panel is powered on, and the position of the movable plate 1 on the carrier plate 100 is adjusted so that the movable plate 1 moves above the display panel. At this time, the fingerprint module 33 is located above the fingerprint area of ​​the display panel, and the sliding direction of the pressing block 31 is vertical and perpendicular to the display panel (see...). Figure 4 ).

[0045] Next, press down the pressing block 31. Since the first T-shaped structure 331 is slidably inserted into the first stepped hole 311, the pressing block 31 will support the fingerprint module 33 as it moves vertically downward (that is, at this time the stepped surface b supports the protrusion a in the vertical direction) until the bottom of the fingerprint module 33 presses the fingerprint area on the display panel (see...). Figure 5Afterward, the pressing block 31 continues to move downward until the protrusion a of the first T-shaped structure 331 is separated from the stepped surface b of the first stepped hole 311 (i.e., it is no longer in contact). At this time, the pressing block 31 releases its support for the fingerprint module 33, and the total weight of the counterweight block 32 and the fingerprint module 33 fully presses the fingerprint area of ​​the display panel. At this time, the pressure sensor 2 can directly read the fingerprint pressure value (which is the total weight). When the fingerprint pressure value does not reach the set range or exceeds the set range, the pressing block 31 moves upward until the pressing block 31 drives the fingerprint module 33 upward. Then, the counterweight block 32 is replaced, i.e., the total weight is adjusted. Finally, the above steps are repeated until the fingerprint pressure value displayed on the pressure sensor 2 reaches the set range, thereby achieving accurate testing. When testing the next display panel of the same batch, the fingerprint pressure on each display panel is always equal to the total weight of the counterweight block 32 and the fingerprint module 33, keeping the fingerprint pressure on the display panel constant and avoiding the problem of uncontrollable fingerprint pressure on the display panel after multiple presses by the spring.

[0046] In other words, the self-weight fingerprint testing structure provided by this utility model ensures that the fingerprint pressure on each display panel is always equal to the total weight of the counterweight 32 and the fingerprint module 33 during batch testing, thereby maintaining a constant fingerprint pressure on the display panel, achieving accurate detection, and avoiding the problem of uncontrollable fingerprint pressure on the display panel after multiple presses by the spring.

[0047] It should be noted that when testing different batches of display panels (with different fingerprint pressure requirements), the counterweight 32 can be replaced.

[0048] For example, the counterweight 32 is provided with multiple shims, and the weight of the counterweight 32 can be adjusted within a small range by increasing or decreasing the number of shims.

[0049] In this embodiment, a positioning pin 16 is inserted into the movable plate 1, and a positioning hole is provided on the pressing block 31. The positioning pin 16 is inserted into the positioning hole, thereby achieving the sliding engagement of the pressing block 31 on the movable plate 1 through the sliding engagement of the positioning pin 16 and the positioning hole.

[0050] In addition, the active panel 1 has a through hole through which the fingerprint module 33 passes.

[0051] For example, the number of the first T-shaped structure 331 and the first stepped hole 311 can be multiple and arranged at intervals, such as 4 or 6, so as to ensure stable support for the fingerprint module 33 before pressing the display panel.

[0052] For example, the fingerprint module 33 includes a connecting block 332 and a fingerprint block 333. The connecting block 332 is provided with a first T-shaped structure 331. The fingerprint block 333 is inserted into the connecting block 332 and extends out of the connecting block 332. The fingerprint block 333 is used to press the fingerprint area of ​​the display panel.

[0053] Figure 6 This is a top view of the fingerprint testing component provided in this embodiment of the present invention. Figure 7 yes Figure 6 Sectional view along line AA, combined with Figure 6 and Figure 7 As shown, the pressing block 31 has a clearance hole 312, and one end of the counterweight block 32 passes through the clearance hole 312 and is connected to one end of the fingerprint module 33 by a bolt 321.

[0054] In the above embodiment, the counterweight 32 can be easily connected to the fingerprint module 33 by setting the clearance hole 312, and the counterweight 32 can be easily replaced by the bolt 321.

[0055] For example, the bolt 321 is located in the recessed hole 312.

[0056] In this embodiment, the pressing block 31 has a second stepped hole 313, and the movable plate 1 has a second T-shaped structure 11, which slides in conjunction with the second T-shaped structure 11 and the second stepped hole 313.

[0057] It is easy to understand that the pressing block 31 and the fingerprint module 33 are linked together through the first stepped hole 311 and the first T-shaped structure 331, and the two can be regarded as a whole. The cooperation of the second T-shaped structure 11 and the second stepped hole 313 can limit the upward movement of the pressing block 31, preventing the pressing block 31 and the fingerprint module 33 from detaching from the movable plate 1 from above.

[0058] For example, there are two of each of the second T-shaped structure 11 and the second stepped hole 313. The T-shaped structure can be a T-bolt.

[0059] In addition, the pressing block 31 has a first limiting surface 314 on the side facing the movable plate 1, and the movable plate 1 has a second limiting surface 12 on the side facing the pressing block 31. The second limiting surface 12 is arranged opposite to the first limiting surface 314 to restrict the sliding of the pressing block 31 after contact.

[0060] In the above embodiment, the pressing block 31 can be limited by the second limiting surface 12 limiting the first limiting surface 314, ensuring that the pressing block 31 moves down to the same height while preventing the pressing block 31 from detaching from the movable plate 1 from below during the downward movement.

[0061] It should be noted that when the first limiting surface 314 contacts the second limiting surface 12, the fingerprint module 33 contacts the display panel, and the protrusion of the first T-shaped structure 331 is spaced from the step surface of the first step hole 311. That is, when the pressing block 31 moves down into place, the fingerprint module 33 can press the display panel.

[0062] Combination Figure 4 and Figure 7 As shown, a first elastic element 4 is sandwiched between the pressing block 31 and the movable plate 1 to drive the pressing block 31 to slide and then reset. The first elastic element 4 can drive the pressing block 31 to move upward and reset after the fingerprint test is completed, avoiding the need for manual upward movement of the pressing block 31 after the test is completed.

[0063] Furthermore, each of the two oppositely arranged sides of the pressing block 31 is hinged with a first hook 315, and the movable plate 1 has two spaced protrusions 13. The first hook 315 is used to hook the corresponding protrusions 13 to maintain the distance between the protrusion of the first T-shaped structure 331 and the stepped surface of the first stepped hole 311.

[0064] It is easy to understand that during the process of pressing the pressing block 31 down until the fingerprint module 33 contacts the display panel, the first elastic element 4 will be compressed, and the first elastic element 4 will exert an upward reset force on the pressing block 31. Therefore, during the process of the fingerprint module 33 pressing the display panel for testing, the pressing block 31 needs to be pressed continuously to avoid the problem of the pressing block 31 moving upward and causing the fingerprint module 33 to move upward. By setting the first hook 315 and the protrusion 13, when the pressing block 31 moves down to the test position (i.e., the interval between the protrusion of the first T-shaped structure 331 and the step surface of the first step hole 311), the first hook 315 hooks the protrusion 13, thereby limiting the pressing block 31 and keeping the pressing block 31 in the test position, thus avoiding prolonged pressing of the fingerprint module 33.

[0065] Furthermore, the first hook 315 includes a driving part and a hooking part, which are hinged to the pressing block 31 at their connection. The hooking part is used to hook onto the protrusion. A second elastic element 316 is sandwiched between the driving part and the pressing block 31. This second elastic element 316 can drive the first hook 315 to rotate and hook onto the protrusion 13 during the downward movement of the pressing block 31, thus achieving the function of automatically hooking and locking the first hook 315 onto the movable plate 1. Additionally, after the test is completed, rotating the first hook 315 releases the lock on the movable plate 1, at which point the first elastic element 315 can automatically press the block 31 upward.

[0066] For example, the protrusion 13 has an inclined surface 131 facing the hook portion, thereby guiding the rotation of the hook portion through the inclined surface 131, avoiding the problem that the hook portion and the protrusion 13 jam during the downward movement of the pressing block 31 and thus preventing the pressing block 31 from moving downward.

[0067] In one implementation of this embodiment, the fingerprint testing structure further includes a hinge seat 5 and a limiting seat 6. Both the hinge seat 5 and the limiting seat 6 are used to fix the carrier plate 100 and are arranged at intervals. One side of the movable plate 1 is hinged to the hinge seat 5 to flip the movable plate 1. The limiting seat 6 has a second hook 61 that is movably arranged and is used to hook the other side of the movable plate 1.

[0068] In the above embodiment, the movable plate 1 can be flipped by the hinged arrangement, thereby adjusting its position and facilitating the placement and removal of the display panel. Specifically, when the movable plate 1 is not flipped above the carrier plate 100, the display panel can be freely placed and removed. When the movable plate 1 is flipped into position, it is parallel to the display panel, and the fingerprint module 33 is directly facing the display panel. Furthermore, the second hook 61 keeps the movable plate 1 in a locked state, preventing accidental opening of the movable plate 1 and thus avoiding interference with fingerprint testing of the display panel.

[0069] For example, when the movable plate 1 is flipped into place by the hinge seat 5, the other side of the movable plate 1 rests precisely on the limiting seat 6, thereby achieving reliable support for the movable plate 1. In addition, the fingerprint testing structure also includes a support block 7, which is arranged at an interval from the limiting seat 6, and the support block 7 is also used to support the movable plate 1.

[0070] It should be noted that in other embodiments of this utility model, the movable plate 1 can also be rotated or slidably mounted on the carrier plate 100, and the position of the movable plate 1 can be adjusted in both cases. This utility model does not impose any restrictions on this.

[0071] In this embodiment, the movable plate 1 includes a movable part 14 and an adjustment part 15. The movable part 14 is movably arranged on the carrier plate 100, and the adjustment part 15 is located on the movable part 14. The pressing block 31 is slidably arranged on the adjustment part 15, and the adjustment part 15 is used to adjust the position of the pressing block 31 in the first direction (X-axis direction), the second direction (Y-axis direction), and the third direction (Z-axis direction). Thus, the horizontal and vertical positions of the pressing block 31 are adjusted by the adjustment part 15, and finally the position of the fingerprint module 33 is adjusted to adapt to the fingerprint area of ​​different types of display panels (the position of the fingerprint area is different for different types of display panels).

[0072] Exemplarily, the adjustment part 15 includes a first plate 151, a second plate 152, and a set screw. The second plate 152 is sandwiched between the first plate 151 and the movable part 14. The pressing block 31 is slidably arranged on the first plate 151. The first plate 151 has a first oblong hole arranged in a first direction, and the second plate 152 has a second oblong hole arranged in a second direction. A first connecting bolt is inserted into the first oblong hole to connect the second plate 152, and a second connecting bolt is inserted into the second oblong hole to connect the movable part 14. Thus, the horizontal position of the pressing block 31 can be adjusted through the oblong holes and the connecting bolts. In addition, the set screw is inserted into the second plate 152, and the bottom end of the set screw abuts against the movable part 14, thereby adjusting the height of the two plates and the pressing block 31.

[0073] It should be noted that in other embodiments of this utility model, the position of the pressing block 31 on the movable plate 1 can also be adjusted by other forms of adjustment part 15, such as slide rails, positioning pins, and positioning holes.

[0074] For example, the second T-shaped structure 11, the second limiting surface 12, the positioning pin 16 and the protrusion 13 are all located on the first plate 151.

[0075] Figure 8 This is a structural schematic diagram of a crimping fixture provided in an embodiment of this utility model, as shown below. Figure 8 As shown, the crimping fixture includes a self-weight fingerprint testing structure as described above.

[0076] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-weight fingerprint testing structure, characterized in that, The self-weight fingerprint testing structure includes a movable plate, a pressure sensor, and fingerprint testing components. The movable plate is movably arranged on the carrier plate, and the pressure sensor is inserted into the carrier plate; The fingerprint testing component includes a pressing block, a counterweight, and a fingerprint module. The pressing block is slidably arranged on the movable plate and has a first stepped hole. The counterweight is detachably arranged on the fingerprint module. One end of the fingerprint module has a first T-shaped structure, which is slidably inserted into the first stepped hole. The other end of the fingerprint module is used to press the fingerprint area of ​​the display panel, and when the other end of the fingerprint module presses the fingerprint area of ​​the display panel, the protrusion of the first T-shaped structure disengages from the stepped surface of the first stepped hole.

2. The self-weight fingerprint testing structure according to claim 1, characterized in that, The pressing block has a clearance hole, and one end of the counterweight passes through the clearance hole and is connected to one end of the fingerprint module by a bolt.

3. The self-weight fingerprint testing structure according to claim 1, characterized in that, The pressing block has a second stepped hole, and the movable plate has a second T-shaped structure, with the second T-shaped structure and the second stepped hole slidingly engaged.

4. The self-weight fingerprint testing structure according to claim 1, characterized in that, The pressing block has a first limiting surface on the side facing the movable plate, and the movable plate has a second limiting surface on the side facing the pressing block. The second limiting surface is arranged opposite to the first limiting surface to restrict the sliding of the pressing block after contact.

5. The self-weight fingerprint testing structure according to claim 1, characterized in that, A first elastic element is sandwiched between the pressing block and the movable plate for driving the pressing block to slide and then reset.

6. The self-weight fingerprint testing structure according to claim 5, characterized in that, The pressing block has two oppositely arranged sides, each hinged with a first hook. The movable plate has two spaced protrusions. The first hooks are used to hook the corresponding protrusions to maintain the distance between the protrusion of the first T-shaped structure and the step surface of the first step hole.

7. The self-weight fingerprint testing structure according to claim 1, characterized in that, The fingerprint testing structure also includes a hinge seat and a limiting seat. The hinge seat and the limiting seat are both used to fix the carrier plate and are arranged at intervals. One side of the movable plate is hinged to the hinge seat to flip the movable plate. The limiting seat has a second hook arranged movably, which is used to hook the other side of the movable plate.

8. The self-weight fingerprint testing structure according to claim 1, characterized in that, The movable plate includes a movable part and an adjusting part. The movable part is movably arranged on the carrier plate, and the adjusting part is located on the movable part. The pressing block is slidably arranged on the adjusting part, and the adjusting part is used to adjust the position of the pressing block in a first direction, a second direction, and a third direction.

9. The self-weight fingerprint testing structure according to claim 1, characterized in that, The movable plate is fitted with a positioning pin, and the pressing block has a positioning hole, in which the positioning pin is inserted.

10. A crimping fixture, characterized in that, The crimping fixture includes a self-weight fingerprint testing structure as described in any one of claims 1-9.

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