Electrical testing jig capable of easily identifying TP functional defects

Abstract

The utility model discloses an electrical testing jig capable of easily identifying TP functional defects, which comprises a fixed table, a movable groove is formed in the front surface of the fixed table, and a limiting frame is connected in the movable groove in a sliding manner; a product placing groove is formed in the top of the fixed table, and a to-be-detected product is placed in the product placing groove; a glass placing groove is formed in the top of the limiting frame; the effect of a clamping groove special for a product can be achieved through the designed product containing groove, the limiting frame capable of moving is designed in the fixing table in a matched mode, the groove body used for containing the ITO glass body is formed in the limiting frame, and due to the fact that the conductivity of ITO glass and the capacitance value during TP testing can be increased, the capacitance value of TP can be amplified, and the TP testing accuracy can be improved. The capacitance difference between the microdefect electrode layer and the normal electrode layer can be amplified, so that the difference of the microdefect electrode layer exceeds a set range, the microdefect electrode layer is effectively clamped and controlled, and it is ensured that products with poor TP functions are effectively screened out.

Description

Technical Field

[0001] The utility model relates to the technical field of electric testing jigs, in particular to an electric testing jig which is easy to identify TP function defects. Background Art

[0002] In the touch screen manufacturing industry, functional testing is required before TP is shipped to ensure that the TP functions normally. Testing TP requires the use of electrical testing fixtures, so electrical testing fixtures play a vital role in testing the functions of TP. Electrical testing fixtures in existing technologies usually only play a role in supporting the product and are difficult to improve the accuracy of product testing.

[0003] This patent provides an electrical test fixture design that can easily identify TP function defects, improve the ability to detect TP function defects, and ensure that TP function defective products are effectively screened out. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical testing fixture that is easy to identify TP functional defects, comprising a fixed table, a movable groove is provided on the front side of the fixed table, and a limit frame is slidably connected in the movable groove; a product placement groove is provided on the top of the fixed table, and the product to be tested is placed in the product placement groove; a glass placement groove is provided on the top of the limit frame, and an ITO glass body is arranged in the glass placement groove, and the top of the glass placement groove corresponds to the bottom of the product placement groove.

[0006] As a further solution of the utility model: a mounting groove is provided on the top of the fixing platform and on one side of the product placement groove, and a pressure head structure for pressing the product to be tested is installed on the side of the mounting groove close to the product placement groove.

[0007] As a further solution of the utility model: rolling grooves are opened on the left and right sides of the bottom wall of the movable groove, and a plurality of roller assemblies are installed inside each of the rolling grooves. The roller assembly includes a fixed shaft, a bearing and a roller body.

[0008] As a further solution of the utility model: the left and right ends of the fixed shaft are respectively fixed on the left and right sides of the inner wall of the rolling groove, the inner ring of the bearing is installed in the middle of the rod body of the fixed shaft, and the roller body is fixedly sleeved on the outer ring of the bearing.

[0009] As a further solution of the utility model: the top surface of the roller body protrudes from the rolling groove, the bottom surface of the roller body is away from the inner bottom wall of the rolling groove, there are gaps between the left and right sides of the roller body and the inner walls of the rolling groove, and the roller body is made of rubber.

[0010] As a further solution of the utility model: positioning grooves are longitudinally opened on both sides of the bottom of the limit frame and at positions corresponding to each rolling groove. When the limit frame is placed in the movable groove, the positioning grooves are rollingly connected to the roller body.

[0011] As a further solution of the utility model: a finger groove 1 is opened in the middle of the left and right sides of the glass placement groove, and the finger groove 1 is connected to the glass placement groove. A finger groove 2 is opened on the front of the limit frame, and a finger groove 3 is opened in the middle of the left and right sides of the limit frame.

[0012] As a further solution of the utility model: a rectangular fixed limiting plate is provided on the inner wall of the glass placement groove near the top. When the ITO glass body is placed in the glass placement groove, the bottom of the ITO glass body is attached to the top of the limiting plate.

[0013] As a further solution of the utility model: the diameter of the glass placement groove is larger than the diameter of the product placement groove, and both the glass placement groove and the product placement groove are designed in a rectangular structure.

[0014] As a further solution of the utility model: support legs are fixed at the four corners of the bottom of the fixed platform, and an anti-slip pad is fixed at the bottom of each support leg.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] In the present application, the designed product placement slot can achieve the effect of a product-specific positioning slot, which is beneficial to positioning and placing the product and maintaining stability. In conjunction with the design of a movable limit frame inside the fixed table, a slot for placing the ITO glass body is opened on the limit frame. Due to the conductivity of the ITO glass, the capacitance value during TP testing will increase, thereby amplifying the capacitance value of the TP, and can amplify the capacitance value difference between the electrode layer with micro-defects and the normal electrode layer, causing the difference value of the electrode layer with micro-defects to exceed the set range, thereby effectively clamping the electrode layer with micro-defects, and is more conducive to the effective screening of products with poor TP function and defects. The roller assembly designed in the movable slot can facilitate the sliding in and out of the limit frame, thereby improving the smoothness of the limit frame movement, which is beneficial for the staff to subsequently take out the limit frame to replace or maintain the ITO glass body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall three-dimensional structure of the fixing table in the electric testing fixture of the utility model which is easy to identify the TP function defect;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a limit frame in an electric testing fixture that is easy to identify TP function defects in the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the movable slot in the electric testing fixture of the utility model which is easy to identify the TP function defect;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of a roller assembly in an electric testing fixture for easily identifying TP function defects of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the internal structure of a limit frame in an electric testing fixture for easily identifying TP function defects.

[0022] The reference numerals and names in the figures are as follows:

[0023] 1. Fixed table; 2. Movable slot; 3. Limiting frame; 301. Glass placement slot; 3011. Limiting plate; 302. Finger slot one; 303. Finger slot two; 304. Finger slot three; 305. Positioning slot; 4. Product placement slot; 5. Press head structure; 6. Rolling slot; 7. Roller assembly; 701. Fixed shaft; 702. Bearing; 703. Roller body; 8. ITO glass body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5An electrical testing fixture for easily identifying TP functional defects includes a fixed platform 1, supporting legs are fixed at the four corners of the bottom of the fixed platform 1, and an anti-skid pad is fixed at the bottom of each supporting leg. The supporting legs can raise the height of the entire fixed platform 1, and the anti-skid pad is arranged at the bottom of the supporting leg, which improves the stability of the entire fixed platform 1 when placed. A movable groove 2 is opened on the front of the fixed platform 1, and a limited position frame 3 is slidably connected in the movable groove 2; a product placement groove 4 is opened on the top of the fixed platform 1, and a product to be tested is placed in the product placement groove 4; a glass placement groove 301 is opened on the top of the limit frame 3, and an ITO glass body 8 is arranged in the glass placement groove 301, and the top of the glass placement groove 301 corresponds to the bottom of the product placement groove 4.

[0026] See also Figure 1 In this embodiment, a mounting groove is provided on the top of the fixing platform 1 and on one side of the product placement groove 4, and a pressure head structure 5 for pressing the product to be tested is installed on the side of the mounting groove close to the product placement groove 4.

[0027] It should be noted that by setting up the pressure head structure 5, a certain pressing effect can be achieved on the product in the product placement slot 4 to ensure the stability of the product to be tested, and the pressure head structure 5 can be a reversible pressing structure composed of structures such as torsion springs, and the torsion force of the torsion spring can be used to achieve pressing of the product.

[0028] See also Figure 3-4 In this embodiment, rolling grooves 6 are provided on the left and right sides of the inner bottom wall of the movable groove 2, and a plurality of roller assemblies 7 are installed inside each rolling groove 6. The roller assembly 7 includes a fixed shaft rod 701, a bearing 702 and a roller body 703; the left and right ends of the fixed shaft rod 701 are respectively fixed on the left and right sides of the inner wall of the rolling groove 6, the inner ring of the bearing 702 is installed in the middle of the rod body of the fixed shaft rod 701, and the roller body 703 is fixedly sleeved on the outer ring of the bearing 702; the top surface of the roller body 703 protrudes from the rolling groove 6, and the bottom surface of the roller body 703 is away from the inner bottom wall of the rolling groove 6. There is a gap between the left and right sides of the roller body 703 and the two sides of the inner wall of the rolling groove 6, and the roller body 703 is made of rubber.

[0029] It should be noted that, by arranging the roller assembly 7 in the movable groove 2, the rolling of the limit frame 3 on the roller body 703 can be utilized to improve the smoothness of the limit frame 3 when entering and exiting the movable groove 2, and the roller body 703 can be rotated on the fixed shaft 701 by means of the bearing 702, and the left and right sides of the roller body 703 are away from the inner wall sides of the rolling groove 6, and the bottom is away from the inner bottom wall of the rolling groove 6, which can ensure the normal rotation of the roller body 703 and avoid contact with the inner wall of the rolling groove 6 to increase friction. At the same time, the top of the roller body 703 protrudes from the rolling groove 6, so that the top of the roller body 703 can be placed in the positioning groove 305.

[0030] See also Figure 1-2 In this embodiment, positioning grooves 305 are longitudinally opened on both sides of the bottom of the limit frame 3 and at positions corresponding to each rolling groove 6. When the limit frame 3 is placed in the movable groove 2, the positioning grooves 305 are rollingly connected to the roller body 703.

[0031] It should be noted that the positioning groove 305 can facilitate the placement of the roller body 703. The positioning groove 305 can limit the roller body 703 and ensure the rolling of the roller body 703 along the set track, thereby ensuring the stability of the limit frame 3 when entering and exiting the movable groove 2.

[0032] See also Figure 2 In the present embodiment, finger groove 1 302 is provided in the middle of the left and right sides of the glass placement groove 301, and the finger groove 1 302 is connected to the glass placement groove 301, a finger groove 2 303 is provided on the front of the limit frame 3, and a finger groove 3 304 is provided in the middle of the left and right sides of the limit frame 3.

[0033] It should be noted that the setting of finger groove 1 302 can facilitate the staff to place or remove the ITO glass body 8 in the glass placement groove 301, and the setting of finger groove 2 303 makes it convenient to lift the entire limit frame 3, and the setting of finger groove 3 304 makes it convenient to pull out the limit frame 3 from the movable groove 2.

[0034] See also Figure 1-3 and Figure 5 In this embodiment, a limiting plate 3011 is fixed in a rectangular shape on the inner wall of the glass placement groove 301 near the top to support the ITO glass body 8. When the ITO glass body 8 is placed in the glass placement groove 301, the bottom of the ITO glass body 8 is attached to the top of the limiting plate 3011; the diameter of the glass placement groove 301 is larger than the diameter of the product placement groove 4, and both the glass placement groove 301 and the product placement groove 4 are designed as rectangular structures.

[0035] It should be noted that, by making the positions of the glass placement groove 301 correspond to those of the product placement groove 4, it is possible to ensure that the product to be tested placed in the product placement groove 4 can better correspond to the ITO glass body 8 placed in the glass placement groove 301. At the same time, the diameter of the glass placement groove 301 is larger than that of the product placement groove 4, which ensures that the area of ​​the ITO glass body 8 in the glass placement groove 301 is larger than that of the product in the product placement groove 4, which is beneficial to the detection.

[0036] When using this utility model:

[0037] The staff first draws out the limit frame 3 from the movable groove 2 through the finger groove 304. When drawing out, the positioning groove 305 at the bottom of the limit frame 3 rolls with the roller assembly 7, and the rotation of the roller body 703 is used to smoothly guide out a part of the limit frame 3. Then the staff can pinch the finger groove 2 303 with both hands and lift the limit frame 3, so as to remove the entire limit frame 3 from the fixed platform 1, and then put the entire limit frame 3 on the ground, and put the ITO glass body 8 in the glass placement groove 301 of the limit frame 3, and finally, the limit frame 3 with the ITO glass body 8 can be reinserted into the movable groove 2;

[0038] When starting the test, the staff needs to place the product to be tested in the product placement slot 4. At this time, there is an ITO glass body 8 corresponding to the bottom of the product to be tested. Due to the conductivity of the ITO glass body 8, the capacitance value during the TP test will increase, thereby amplifying the capacitance value of the TP, which can amplify the capacitance value difference between the electrode layer with micro-defects and the normal electrode layer, causing the difference value of the electrode layer with micro-defects to exceed the set range, thereby effectively controlling the electrode layer with micro-defects and ensuring that products with poor TP function are effectively screened out.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An electrical testing tool that can easily identify TP functional defects, characterized in that: It comprises a fixed platform (1), a movable groove (2) is provided on the front side of the fixed platform (1), and a limit position frame (3) is slidably connected in the movable groove (2); A product placement slot (4) is provided on the top of the fixed platform (1), and a product to be inspected is placed in the product placement slot (4); A glass placement groove (301) is provided at the top of the limiting frame (3), an ITO glass body (8) is arranged in the glass placement groove (301), and the top of the glass placement groove (301) corresponds to the bottom of the product placement groove (4).

2. According to claim 1, an electrical testing jig for easily identifying TP functional defects is characterized in that: A mounting groove is also provided on the top of the fixing platform (1) and located on one side of the product placement groove (4), and a pressure head structure (5) for pressing the product to be tested is installed on the side of the mounting groove close to the product placement groove (4).

3. The electrical testing jig for easily identifying TP functional defects according to claim 1, characterized in that: The left and right sides of the inner bottom wall of the movable groove (2) are provided with rolling grooves (6), and a plurality of roller assemblies (7) are installed inside each of the rolling grooves (6). The roller assemblies (7) include a fixed shaft (701), a bearing (702) and a roller body (703).

4. The electrical testing tool for easily identifying TP functional defects according to claim 3 is characterized in that: The left and right ends of the fixed shaft rod (701) are respectively fixed to the left and right sides of the inner wall of the rolling groove (6), the inner ring of the bearing (702) is installed in the middle of the rod body of the fixed shaft rod (701), and the roller body (703) is fixedly sleeved on the outer ring of the bearing (702).

5. The electrical testing jig for easily identifying TP functional defects according to claim 3 is characterized in that: The top surface of the roller body (703) protrudes from the rolling groove (6), the bottom surface of the roller body (703) is away from the inner bottom wall of the rolling groove (6), and there is a gap between the left and right sides of the roller body (703) and the inner walls of the rolling groove (6), and the roller body (703) is made of rubber.

6. The electrical testing jig for easily identifying TP functional defects according to claim 1, characterized in that: Positioning grooves (305) are longitudinally provided on both sides of the bottom of the limiting frame (3) and at positions corresponding to each rolling groove (6); when the limiting frame (3) is placed in the movable groove (2), the positioning grooves (305) are rollingly connected to the roller body (703).

7. The electrical testing tool for easily identifying TP functional defects according to claim 1, characterized in that: The glass placement groove (301) is provided with a first finger groove (302) in the middle of both the left and right sides, and the first finger groove (302) is connected to the glass placement groove (301). The front of the limit frame (3) is provided with a second finger groove (303), and the middle of both the left and right sides of the limit frame (3) is provided with a third finger groove (304).

8. The electrical testing jig for easily identifying TP functional defects according to claim 1, characterized in that: A rectangular limiting plate (3011) is fixed on the inner wall of the glass placement groove (301) near the top, and when the ITO glass body (8) is placed in the glass placement groove (301), the bottom of the ITO glass body (8) is attached to the top of the limiting plate (3011).

9. The electrical testing jig for easily identifying TP functional defects according to claim 1, characterized in that: The diameter of the glass placement groove (301) is larger than the diameter of the product placement groove (4), and both the glass placement groove (301) and the product placement groove (4) are designed in a rectangular structure.

10. The electrical testing jig for easily identifying TP functional defects according to claim 1, characterized in that: Support legs are fixed at the four corners of the bottom of the fixed platform (1), and an anti-slip pad is fixed at the bottom of each support leg.

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