Single TP electrical testing clamp for simulating whole machine

Abstract

The utility model discloses a single TP electrical testing clamp for simulating a whole machine, which comprises a base and a pressing plate, a mounting groove is formed in the middle of the upper surface of the base, a limiting groove is formed in the middle of the upper surface of the base and located at the mounting groove, the mounting groove is used for placing a TFT, and the limiting groove is used for placing a TP; a pressing plate is arranged on the left side of the upper surface of the base, and a probe is arranged on the front side of the lower surface of the pressing plate. According to the single TP electrical testing clamp for simulating the whole machine provided by the utility model, the TFT is placed in the mounting groove on the base, the TP is placed in the limiting groove and is attached to the TFT, then the pressing plate is pressed on the base and the TP, and the TFT and the TP are tightly attached to each other through the restoring force of the elastic column and the pressing plate so as to achieve a simulated attaching state; and meanwhile, the probe on the pressing plate is in full contact with the golden finger on the TP to complete electrical testing, so that electrical testing standards can be unified, the problem of misjudgment caused by different testing standards is avoided, and the yield of production and manufacturing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screen testing, in particular to a single-TP electrical testing fixture for simulating a complete machine. Background Art

[0002] Display screens are widely used in modern society and can be seen everywhere. Through display screens, information can be expressed more intuitively and vividly, and they are commonly used in industrial and consumer fields. With the development, touch screens have become an indispensable configuration in vehicles. However, during the production process, some samples with normal appearance but abnormal functions can only be effectively detected through functional electrical testing software, which requires high precision of the electrical testing software. Generally, the testing is based on the status of this position, and the electrical testing software has a great relationship with the environment. This will cause the samples to pass the test in the single-TP state, but after reaching the TFT lamination position, misjudgment occurs due to inconsistent testing standards, reducing the yield rate of production and increasing the company's losses. Summary of the Utility Model

[0003] Based on this, in view of the above technical problems, it is necessary to provide a single-TP electrical testing fixture for simulating a complete machine. Some elastic columns made of silicone material in the shape of blocky squares are arrayed at the bottom layer in the installation groove on the base. There is a certain gap between the elastic columns to absorb the overflowing silicone after pressing down. Place the TFT on the elastic columns and fix the TFT. The TP is placed on the TFT glass through the limiting groove, and a pressing plate is placed on the TP. When the TP is placed in the limiting groove, pressing down the pressing plate makes the TP and the TFT in close contact through the elasticity of the elastic columns to achieve a simulated lamination state, and at the same time, the gold fingers and the probes are in full contact to complete the electrical testing.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A single-TP electrical testing fixture for simulating a complete machine, comprising:

[0006] A base, in the middle of the upper surface of the base, there is an installation groove opened, and a limiting groove is opened in the middle of the upper surface of the base and at the position of the installation groove. The installation groove is used to place the TFT, and the limiting groove is used to place the TP;

[0007] A pressing plate, which is arranged on the left side of the upper surface of the base. The front side of the lower surface of the pressing plate is provided with a probe, and the probe is used to connect with the gold fingers on the TP;

[0008] Elastic columns, which are uniformly and fixedly connected to the inner bottom wall of the installation groove, and the elastic columns are used to make the probes, the TFT and the TP in close fit.

[0009] Further, avoidance spaces and taking positions are respectively opened on the front and rear sides of the upper surface of the base, and both the avoidance spaces and the taking positions are communicated with the installation groove.

[0010] Further, the height between the top end of the elastic column and the inner bottom wall of the limiting groove is greater than the thickness of the TFT, and the depth of the limiting groove is greater than the thickness of the TP.

[0011] Further, the number of the elastic columns is multiple and the elastic columns are made of silica gel, and an overflow groove is arranged between two adjacent elastic columns.

[0012] Further, a handle is installed on the right side of the upper surface of the pressing plate, and the pressing plate is rotatably connected to the upper surface of the base through a hinge.

[0013] Further, a cavity is formed in the right side of the base, two movable rods are slidably connected to the front and rear sides of the cavity, the top ends of the movable rods are located outside the base and fixedly connected with clamping blocks, and through holes corresponding to the clamping blocks are formed in the right side of the pressing plate.

[0014] Further, a cam is arranged between the two movable rods, a rotating shaft is fixedly connected to the right side of the cam, the right side of the rotating shaft penetrates through the base and is fixedly connected with a knob, the rotating shaft is rotatably connected to the base through a bearing, and the cam is rotatably connected to the movable rod through a connecting rod.

[0015] Further, two sliding rods are fixedly connected to the front inner wall of the cavity, the backs of the sliding rods penetrate through the movable rods and are fixedly connected to the back inner wall of the cavity, the sliding rods are slidably connected with the movable rods, springs are sleeved on the outer surfaces of the sliding rods between the movable rods and the inner wall of the cavity, and long holes corresponding to the movable rods are formed in the right side of the upper surface of the base.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The single-TP electrical measurement fixture for simulating a complete machine provided by the utility model places the TFT in the installation groove on the base and contacts with a plurality of elastic columns at the bottom, then places the TP in the limiting groove and fits it with the TFT, and then presses the pressing plate on the base and the TP. At this time, the elastic columns are compressed, and the overflow grooves between two adjacent elastic columns absorb the extruded silica gel. Through the restoring force of the elastic columns and the pressing plate, the TFT and the TP are tightly fitted to achieve a simulated fitting state. At the same time, the probes on the pressing plate are in full contact with the gold fingers on the TP to complete electrical measurement, so as to fix the TFT and the TP on the electrical measurement fixture, and the single TP also completes the function test based on the fitting state with the TFT, so that the electrical measurement standard can be unified, the problem of misjudgment caused by inconsistent test standards can be avoided, and the yield rate of production can be improved.

[0018] The single-TP electrical test fixture that simulates the whole machine provided by the present utility model drives the cam to reverse by rotating the knob when closing the pressure plate. During the reverse rotation of the cam, the connecting rod drives the movable rod to slide on the sliding rod and compress the spring. At this time, the movable rod drives the block to move towards the middle. When the pressure plate fits with the TP and the base, the block passes through the long hole, and then the knob is released. At this time, the restoring force of the spring drives the movable rod and the block to reset and limit the pressure plate, so that the base and the pressure plate are fixed together, facilitating subsequent testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a three-dimensional structural schematic diagram of the single-TP electrical test fixture that simulates the whole machine provided by the present utility model;

[0020] Figure 2 FIG. 10 is an open structural schematic diagram of the single-TP electrical test fixture that simulates the whole machine provided by the present utility model;

[0021] Figure 3 FIG. 14 is a structural schematic diagram of the single-TP electrical test fixture that simulates the whole machine provided by the present utility model without installing the TP;

[0022] Figure 4 FIG. 18 is a front-view sectional structural schematic diagram of the single-TP electrical test fixture that simulates the whole machine provided by the present utility model;

[0023] Figure 5 FIG. 22 is a right-view sectional structural schematic diagram of the single-TP electrical test fixture that simulates the whole machine provided by the present utility model.

[0024] The markings in the figures are explained as follows:

[0025] 1. Base; 2. Installation groove; 3. Limit groove; 4. TFT; 5. TP; 6. Pressure plate; 7. Probe; 8. Gold finger; 9. Elastic column; 10. Handle; 11. Cavity; 12. Movable rod; 13. Block; 14. Through hole; 15. Cam; 16. Rotating shaft; 17. Knob; 18. Connecting rod; 19. Sliding rod; 20. Spring; 21. Long hole; 201. Avoidance position; 202. Taking position; 901. Overflow groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0027] As described in the background art, the existing test standards for single TP and TFT are different, resulting in incomplete alignment between standards and misjudgment in testing.

[0028] To solve this technical problem, the present utility model provides a single TP electrical test fixture for simulating a complete machine, which is applied to the fitting test of TP5 and TFT4.

[0029] Specifically, please refer to Figures 1-5 , the single TP electrical test fixture for simulating a complete machine specifically includes:

[0030] Base 1, in the middle of the upper surface of the base 1, an installation groove 2 is opened, and a limiting groove 3 is opened at the middle of the upper surface of the base 1 and located at the installation groove 2. The installation groove 2 is used to place TFT4, and the limiting groove 3 is used to place TP5;

[0031] Pressing plate 6, which is arranged on the left side of the upper surface of the base 1. A probe 7 is arranged on the front side of the lower surface of the pressing plate 6. The probe 7 is used to connect with the gold fingers 8 on TP5;

[0032] Elastic columns 9, which are uniformly and fixedly connected to the inner bottom wall of the installation groove 2. The elastic columns 9 are used to make the probe 7, TFT4 and TP5 fit tightly.

[0033] The single TP electrical test fixture for simulating a complete machine provided by the present utility model includes a base 1 and a pressing plate 6. When in use, first place TFT4 in the installation groove 2 on the base 1 and contact the multiple elastic columns 9 at the bottom, then place TP5 in the limiting groove 3 and fit it with TFT4, and then press the pressing plate 6 on the base 1 and TP5. At this time, the elastic columns 9 are compressed, and the overflow groove 901 between two adjacent elastic columns 9 absorbs the extruded silica gel. Through the restoring force of the elastic columns 9 and the pressing plate 6, TFT4 and TP5 are tightly fitted to achieve a simulated fitting state. At the same time, the probe 7 on the pressing plate 6 is in full contact with the gold fingers 8 on TP5 to complete the electrical test, thereby fixing TFT4 and TP5 on the electrical test fixture, and enabling the single TP5 to also complete the function test based on the fitting state with TFT4. In this way, the electrical test standard can be unified, avoiding the problem of misjudgment caused by inconsistent test standards, and improving the yield rate of production.

[0034] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0035] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] Please refer to Figures 1-3 , a single-TP electrical test fixture for simulating a complete machine, which includes a base 1, a pressure plate 6 and elastic columns 9. An installation groove 2 is provided in the middle of the upper surface of the base 1, and a limiting groove 3 is provided in the middle of the upper surface of the base 1 and at the position of the installation groove 2. The installation groove 2 is used to place the TFT 4, and the limiting groove 3 is used to place the TP 5; the pressure plate 6 is arranged on the left side of the upper surface of the base 1, and a probe 7 is arranged on the front side of the lower surface of the pressure plate 6. The probe 7 is used to connect with the gold finger 8 on the TP 5; the elastic columns 9 are evenly fixedly connected to the inner bottom wall of the installation groove 2, and the elastic columns 9 are used to make the probe 7, the TFT 4 and the TP 5 fit tightly.

[0038] Please refer to Figures 1-5 , this electrical test fixture includes a base 1 and a pressure plate 6. During use, first place the TFT 4 in the installation groove 2 on the base 1 and contact the multiple elastic columns 9 at the bottom, then place the TP 5 in the limiting groove 3 and fit it with the TFT 4, and then press the pressure plate 6 on the base 1 and the TP 5. At this time, the elastic columns 9 are compressed, and the overflow grooves 901 between adjacent two elastic columns 9 absorb the extruded silica gel. Through the restoring force of the elastic columns 9 and the pressure plate 6, the TFT 4 and the TP 5 are tightly fitted to achieve a simulated fitting state. At the same time, the probe 7 on the pressure plate 6 is in full contact with the gold finger 8 on the TP 5 to complete the electrical test, so as to fix the TFT 4 and the TP 5 on the electrical test fixture, and make the single TP 5 also complete the function test based on the fitting state with the TFT 4. In this way, the electrical test standard can be unified, the problem of misjudgment caused by inconsistent test standards can be avoided, and the yield rate of production can be improved.

[0039] The single-TP electrical test fixture for simulating a complete machine provided in this embodiment has some block-shaped square elastic columns 9 made of silica gel material arrayed at the inner bottom layer of the installation groove 2 on the base 1. There are certain gaps between the elastic columns 9 to absorb the silica gel overflowing after being pressed down. Place the TFT 4 on the elastic columns 9 and fix the TFT 4. The TP 5 is placed on the TFT 4 glass through the limiting groove 3, and a pressure plate 6 is placed on the TP 5. When the TP 5 is placed in the limiting groove 3, press down the pressure plate 6, and through the elasticity of the elastic columns 9, the TP 5 and the TFT 4 are in close contact to achieve a simulated fitting state. At the same time, the gold finger 8 is in full contact with the probe 7 to complete the electrical test.

[0040] Further optimize the single-TP electrical test fixture for simulating a complete machine provided in Embodiment 1. Specifically, as Figure 2 and Figure 3 shown, avoidance spaces 201 and taking positions 202 are respectively provided on the front and rear sides of the upper surface of the base 1, and both the avoidance spaces 201 and the taking positions 202 are communicated with the installation groove 2.

[0041] Through the above structural design, it is convenient to take out the TFT4 in the mounting groove 2 and the TP5 in the limiting groove 3, improving the test efficiency.

[0042] The single-TP electrical test fixture for the simulated whole machine provided in Embodiment 1 or 2 is further optimized. For example, Figure 2 , Figure 3 and Figure 4 As shown, the height between the top end of the elastic column 9 and the inner bottom wall of the limiting groove 3 is greater than the thickness of the TFT4, and the depth of the limiting groove 3 is greater than the thickness of the TP5;

[0043] With such a setting, the TFT4 is placed on the elastic column 9, the TP5 is placed on the TFT4 glass through the limiting groove 3, and a pressing plate 6 is placed on the TP5. Pressing down the pressing plate 6 makes the TP5 and the TFT4 in close contact through the elasticity of the elastic column 9 to achieve a simulated fitting state, avoiding the problem that when pressing, the TP5 contacts the inner bottom wall of the limiting groove 3, resulting in insufficient elasticity of the elastic column 9 and the inability of the TP5 and the TFT4 to be in close contact;

[0044] The number of the elastic columns 9 is multiple and they are made of silica gel. An overflow groove 901 is arranged between two adjacent elastic columns 9. With such a setting, the elastic columns 9 made of silica gel are relatively soft and have a certain elasticity, and there is a certain gap between the elastic columns 9 to absorb the overflowing silica gel after being pressed down.

[0045] The single-TP electrical test fixture for the simulated whole machine provided in the above embodiments is further optimized. For example, Figure 1 and Figure 3 As shown, a handle 10 is installed on the right side of the upper surface of the pressing plate 6, and the pressing plate 6 is rotatably connected to the left side of the upper surface of the base 1 through a hinge. With such a setting, the pressing plate 6 is rotatably connected to the base 1, facilitating the opening and closing of the pressing plate 6;

[0046] For example, Figure 3 and Figure 5As shown in the figure, a cavity 11 is provided inside the right side of the base 1. Two movable rods 12 are slidably connected to the front and rear sides of the cavity 11. The top ends of the movable rods 12 are located outside the base 1 and fixedly connected with clamping blocks 13. A through hole 14 corresponding to the clamping block 13 is provided on the right side of the pressing plate 6. A cam 15 is arranged between the two movable rods 12. The right side of the cam 15 is fixedly connected with a rotating shaft 16. The right side of the rotating shaft 16 penetrates through the base 1 and is fixedly connected with a knob 17. The rotating shaft 16 is rotatably connected with the base 1 through a bearing. The cam 15 is rotatably connected with the movable rod 12 through a connecting rod 18. The front inner wall of the cavity 11 is fixedly connected with two sliding rods 19. The back of the sliding rods 19 penetrates through the movable rod 12 and is fixedly connected with the back inner wall of the cavity 11. The sliding rods 19 are slidably connected with the movable rod 12. A spring 20 is sleeved on the outer surface of the sliding rods 19 and between the movable rod 12 and the inner wall of the cavity 11. A long hole 21 corresponding to the movable rod 12 is provided on the upper surface right side of the base 1.

[0047] With such a structural design, when closing the pressing plate 6, rotate the knob 17 to drive the cam 15 to reverse. During the reverse process of the cam 15, the movable rod 12 is driven to slide on the sliding rod 19 and compress the spring 20 through the connecting rod 18. At this time, the movable rod 12 drives the clamping block 13 to move towards the middle. When the pressing plate 6 is in contact with the TP5 and the base 1, the clamping block 13 passes through the long hole 21. Then release the knob 17. At this time, the restoring force of the spring 20 drives the movable rod 12 and the clamping block 13 to reset to limit the pressing plate 6, so that the base 1 and the pressing plate 6 are fixed together, facilitating subsequent tests.

[0048] The using process of the single-TP electrical test fixture for simulating the whole machine provided by the utility model is as follows:

[0049] The electrical measurement fixture includes a base 1 and a pressing plate 6. During use, first place the TFT 4 in the installation groove 2 on the base 1 and make contact with a plurality of elastic columns 9 at the bottom. Then place the TP 5 in the limiting groove 3 and fit it with the TFT 4. Next, rotate the knob 17 to drive the cam 15 to reverse. During the reverse rotation of the cam 15, the connecting rod 18 drives the movable rod 12 to slide on the sliding rod 19 and compress the spring 20. At this time, the movable rod 12 drives the block 13 to move towards the middle. When the pressing plate 6 fits with the TP 5 and the base 1, the block 13 passes through the long hole 21. Then release the knob 17. At this time, the restoring force of the spring 20 drives the movable rod 12 and the block 13 to reset and limit the pressing plate 6, so as to press the pressing plate 6 on the base 1 and the TP 5. At this time, the elastic columns 9 are compressed, and the overflow groove 901 between two adjacent elastic columns 9 absorbs the extruded silicone. Through the restoring force of the elastic columns 9 and the pressing plate 6, the TFT 4 and the TP 5 are closely fitted to achieve a simulated fitting state. At the same time, the probe 7 on the pressing plate 6 makes full contact with the gold finger 8 on the TP 5 to complete the electrical measurement, thereby fixing the TFT 4 and the TP 5 on the electrical measurement fixture, enabling the single TP 5 to also complete the functional test based on the fitting state with the TFT 4. In this way, the electrical measurement standard can be unified, avoiding the problem of misjudgment caused by inconsistent test standards, and improving the yield rate of production.

[0050] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all the embodiments. The drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure made by using the specification and drawings of the present utility model, directly or indirectly applied to other related technical fields, is equally within the scope of the patent protection of the present utility model.

Claims

1. A single TP electrical test fixture simulating a complete machine, characterized in that: It includes: A base (1), wherein a mounting groove (2) is provided in the middle of the upper surface of the base (1), and a limiting groove (3) is provided in the middle of the upper surface of the base (1) and located at the mounting groove (2), the mounting groove (2) is used to place the TFT (4), and the limiting groove (3) is used to place the TP (5); A pressure plate (6) is arranged on the left side of the upper surface of the base (1), and a probe (7) is arranged on the front side of the lower surface of the pressure plate (6), and the probe (7) is used to connect with the gold finger (8) on the TP (5); An elastic column (9) is evenly and fixedly connected to the inner bottom wall of the mounting groove (2), and the elastic column (9) is used to make the probe (7), the TFT (4) and the TP (5) fit tightly together.

2. The single TP electrical measurement fixture for simulating a complete machine according to claim 1, characterized in that: A clearance position (201) and a taking position (202) are respectively provided on the front and rear sides of the upper surface of the base (1); the clearance position (201) and the taking position (202) are both connected to the installation groove (2).

3. The single TP electrical measurement fixture for simulating a complete machine according to claim 1, characterized in that: The height between the top of the elastic column (9) and the inner bottom wall of the limiting groove (3) is greater than the thickness of the TFT (4), and the depth of the limiting groove (3) is greater than the thickness of the TP (5).

4. The single TP electrical measurement fixture for simulating a complete machine according to claim 3, characterized in that: The elastic columns (9) are multiple in number and are made of silicone material, and an overflow groove (901) is provided between two adjacent elastic columns (9).

5. The single TP electrical measurement fixture for simulating a complete machine according to claim 1, characterized in that: A handle (10) is installed on the right side of the upper surface of the pressing plate (6), and the pressing plate (6) is rotatably connected to the upper surface of the base (1) via a hinge.

6. The single TP electrical measurement fixture for simulating a complete machine according to claim 1, characterized in that: A cavity (11) is provided inside the right side of the base (1), two movable rods (12) are slidably connected to the front and rear sides of the cavity (11), the top ends of the movable rods (12) are located outside the base (1) and are fixedly connected to a clamping block (13), and a through hole (14) corresponding to the clamping block (13) is provided on the right side of the pressure plate (6).

7. The single TP electrical measurement fixture for simulating a complete machine according to claim 6, characterized in that: A cam (15) is provided between the two movable rods (12); the right side of the cam (15) is fixedly connected to a rotating shaft (16); the right side of the rotating shaft (16) passes through the base (1) and is fixedly connected to a knob (17); the rotating shaft (16) is rotatably connected to the base (1) via a bearing; and the cam (15) is rotatably connected to the movable rod (12) via a connecting rod (18).

8. The single TP electrical measurement fixture for simulating a complete machine according to claim 7, characterized in that: Two slide bars (19) are fixedly connected to the front inner wall of the cavity (11); the back of the slide bar (19) passes through the movable bar (12) and is fixedly connected to the back inner wall of the cavity (11); the slide bar (19) is slidably connected to the movable bar (12); a spring (20) is sleeved on the outer surface of the slide bar (19) and located between the movable bar (12) and the inner wall of the cavity (11); and a long hole (21) corresponding to the movable bar (12) is opened on the right side of the upper surface of the base (1).

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