Voltage resistance profiling test device for harmonica-shaped tube insulating coating

Abstract

The utility model discloses a harmonica-shaped tube insulating coating withstand voltage profiling test device, and relates to the technical field of test tools. Comprising a test seat and a conductive connecting block, the test seat comprises a base and a cover plate, the upper surface of the base is provided with a plurality of grooves for installing harmonica-shaped tubes, the base and the cover plate are respectively provided with a binding post I and a binding post II, and the conductive connecting block comprises a base plate and a metal plate arranged on the base plate. A harmonica-shaped tube to be tested is placed in the groove, the harmonica-shaped tube is tightly pressed through the cover plate, after the harmonica-shaped tube is tightly pressed, the first binding post on the base is connected with the second binding post on the cover plate, the end portion of the harmonica-shaped tube is placed on the conductive connecting block and is electrically connected with the conductive connecting block, and during testing, one electrode on a withstand voltage detector is connected to the binding posts, and the other electrode on the withstand voltage detector is connected with the second binding post. The operation is very simple and convenient, a plurality of grooves are formed in the base, it is ensured that a plurality of harmonica-shaped tubes can be tested at a time, and the testing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of testing tools, in particular to a harmonica pipe insulation coating withstand voltage profiling testing device. Background Art

[0002] Nowadays, the new energy electric vehicle industry is in a booming stage. As a component of the battery thermal management system of electric vehicles, harmonica pipes have the advantages of high space utilization and low manufacturing design cost, and are currently widely used. However, existing harmonica pipes usually need to be insulated on their outer surfaces through a spraying process to ensure the quality and safety of their products through the coating on the outer surface. Voltage resistance testing is an important standard for testing the insulation performance of harmonica pipes.

[0003] The existing harmonica pipe testing tooling usually performs a one-to-one withstand voltage test, which has low testing efficiency, long testing time, large testing workload, and low testing efficiency. At the same time, it cannot ensure that the harmonica pipe is not suspended in the testing tooling, which is prone to test errors and other problems. Utility Model Content

[0004] The utility model aims to provide a harmonica pipe insulation coating withstand voltage profiling test device, which solves the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a harmonica tube insulation coating withstand voltage profiling test device, comprising a test seat and a conductive connecting block, the test seat comprising a base and a cover plate, the upper surface of the base is provided with a plurality of grooves for mounting the harmonica tube, the base and the cover plate are respectively provided with a terminal 1 and a terminal 2.

[0006] Preferably, the conductive connecting block comprises a pad and a metal plate placed on the pad, and the middle of the metal plate is covered with conductive cotton.

[0007] Preferably, an aluminum lower plate is provided on the upper surface of the base, the aluminum lower plate is coated on the outside of the groove and is connected to the first terminal, and conductive cotton 2 is pasted on the aluminum lower plate on the outside of the groove.

[0008] Preferably, an aluminum cover plate is fixedly connected to the bottom surface of the cover plate, and a conductive cotton is pasted on the bottom surface of the aluminum cover plate corresponding to the groove.

[0009] Preferably, a plurality of clamping mechanisms are symmetrically provided on both sides of the upper surface of the base.

[0010] Preferably, a plurality of limit blocks are symmetrically arranged at both ends of the base, and the limit blocks are correspondingly arranged on the outer sides of the groove.

[0011] Preferably, handles are fixedly connected to both the front and rear ends of the cover plate.

[0012] Preferably, the metal plate is an aluminum plate with a thickness of less than 3 cm, and the distance between the edge of one side of the metal plate used to connect the detector and the conductive cotton is not less than 0.5 cm.

[0013] Preferably, the backing plate is a bakelite board.

[0014] Preferably, the clamping mechanism is a horizontal fixing clamp.

[0015] Compared with the related art, the harmonica tube insulation coating withstand voltage profiling test device provided by the utility model has the following beneficial effects:

[0016] 1. Put the harmonica pipe to be tested into the groove, press the harmonica pipe through the cover plate, and after pressing, connect the terminal 1 on the base with the terminal 2 on the cover plate. The end of the harmonica pipe is placed on the conductive connection block and electrically connected to the conductive connection block. During the test, connect one electrode on the withstand voltage tester to the terminal, and the other electrode to the conductive connection block, and the withstand voltage test can be performed on the harmonica pipe. The operation is very simple. Multiple grooves are set on the base to ensure that multiple harmonica pipes can be tested at one time, and the test efficiency is high.

[0017] 2. After the profiling gauge to be tested is placed in the groove, the cover plate can be tightly pressed on the base by adjusting the clamping mechanism, so that the conductive cotton in the groove can fully wrap the harmonica tube, avoiding the phenomenon of the harmonica tube hanging in the air, causing errors in the test results, and improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the second structure of the terminal of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the base of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the groove of the utility model;

[0022] Figure 5 It is a schematic diagram of the local structure of the cover plate of the utility model;

[0023] Figure 6 For the utility model Figure 1 Enlarged view of point A in the middle;

[0024] Figure 7 For the utility model Figure 3 Enlarged view of point B in the middle.

[0025] In the figure: 1. base; 2. conductive connecting block; 201. pad; 202. metal plate; 203. conductive cotton 1; 3. cover plate; 4. terminal 1; 5. groove; 6. terminal 2; 7. handle; 8. aluminum lower plate; 9. conductive cotton 2; 10. clamping mechanism; 11. limit block; 12. aluminum cover plate; 13. conductive cotton 3. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] See also Figure 1-Figure 7 The utility model provides a technical solution: a harmonica pipe insulation coating withstand voltage profiling test device, comprising a test seat and a conductive connection block 2, the test seat comprising a base 1 and a cover plate 3, the front and rear ends of the cover plate 3 are fixedly connected with handles 7, the upper surface of the base 1 is provided with a plurality of grooves 5 for mounting the harmonica pipe, the base 1 and the cover plate 3 are respectively provided with a terminal 1 4 and a terminal 2 6, the conductive connection block 2 comprises a pad 201 and a metal plate 202 placed on the pad 201, the middle of the metal plate 202 is covered with a conductive cotton 1 203, the metal plate 202 is an aluminum plate and has a thickness of less than 3 cm, the distance between the edge of the metal plate 202 used to connect the detector and the conductive cotton 1 203 is not less than 0.5 cm, the pad 201 is a bakelite board, and the pad 201 is used to pad the conductive connection block 2 so that its height It can be adapted to the height of the test seat. During the test, the harmonica pipe with the coating attached on the surface is placed into the vacant groove 5 corresponding to the base 1, and then the cover plate 3 is tightly covered on the base 1 to fully wrap the harmonica pipe, and then the terminal 1 4 on the base 1 and the terminal 2 6 on the cover plate 3 are connected, so that the test device can be electrically connected to the coated surface of the harmonica pipe, and then the end of the harmonica pipe is placed on the conductive connection block 2 to form an electrical connection with the conductive connection block 2. During the test, one electrode on the withstand voltage tester is connected to the terminal 1 4, and the other electrode is clamped on the edge of the metal plate 202 of the conductive connection block 2, so that the insulating coating on the surface of the harmonica pipe can be subjected to withstand voltage test. The operation is very simple. A plurality of grooves 5 are arranged on the base 1, and a plurality of harmonica pipes can be tested at one time, which reduces the test workload and improves the test efficiency.

[0029] In this embodiment, a plurality of clamping mechanisms 10 are symmetrically arranged on both sides of the upper surface of the base 1. The clamping mechanism 10 is a horizontal fixed clamp. The model of the clamping mechanism 10 is a quick clamp GH-201C. When the cover plate 3 is covered on the base 1, the clamping mechanism 10 can be fine-tuned to press the cover plate 3 on the base 1.

[0030] In this embodiment, an aluminum lower plate 8 is provided on the upper surface of the base 1, and the aluminum lower plate 8 is coated on the outside of the groove 5 and connected to the terminal 1 4. The aluminum lower plate 8 on the outside of the groove 5 is covered with conductive cotton 2 9, and the bottom surface of the cover plate 3 is fixedly connected with an aluminum cover plate 12, and the bottom surface of the aluminum cover plate 12 corresponding to the groove 5 is covered with conductive cotton 3 13. When the cover plate 3 is covered on the base 1 and the cover plate 3 is pressed by the pressing mechanism 10, the wrapping property of the test device on the harmonica pipe is fully improved by the conductive cotton 2 9 and the conductive cotton 3 13, so as to prevent the harmonica pipe from being suspended, thereby improving the test accuracy;

[0031] In this embodiment, a plurality of limit blocks 11 are symmetrically arranged at both ends of the base 1, and the limit blocks 11 are correspondingly arranged on the outside of the groove 5. After the harmonica pipe to be tested is placed in the groove 5, the end of the harmonica pipe to be tested can be quickly positioned by the limit blocks 11;

[0032] Working principle: put the harmonica pipe with coating on the surface into the vacant groove 5 corresponding to the base 1, then cover the base 1 with the cover plate 3, and press the cover plate 3 onto the base 1 by adjusting the pressing mechanism 10, so as to improve the wrapping property of the test device on the harmonica pipe to prevent the harmonica pipe from being suspended in the air, and the test accuracy is high. After connecting the terminal 1 4 on the base 1 and the terminal 2 6 on the cover plate 3, the test device can be electrically connected to the coated surface of the harmonica pipe, and then the end of the harmonica pipe is placed on the conductive connecting block 2 to form an electrical connection with the conductive connecting block 2. During the test, connect one electrode on the withstand voltage tester to the terminal 1 4, and clamp the other electrode to the edge of the metal plate 202 of the conductive connecting block 2, so as to perform withstand voltage test on the insulating coating on the surface of the harmonica pipe. The operation is simple and the detection efficiency is high. A plurality of grooves 5 are arranged on the base 1 of the device, and a plurality of harmonica pipes can be tested at one time, which reduces the test workload and improves the test efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A harmonica tube insulation coating withstand voltage profiling test device, comprising a test seat and a conductive connection block (2), characterized in that: The test seat comprises a base (1) and a cover plate (3); a plurality of grooves (5) for mounting harmonica pipes are provided on the upper surface of the base (1); and a first terminal (4) and a second terminal (6) are provided on the base (1) and the cover plate (3), respectively.

2. A harmonica tube insulation coating withstand voltage profiling test device according to claim 1, characterized in that: The conductive connection block (2) comprises a pad (201) and a metal plate (202) placed on the pad (201), and a conductive cotton (203) is attached to the middle of the metal plate (202).

3. A harmonica tube insulation coating withstand voltage profiling test device according to claim 1, characterized in that: An aluminum lower plate (8) is provided on the upper surface of the base (1), the aluminum lower plate (8) is wrapped around the outside of the groove (5) and connected to the first terminal (4), and conductive cotton second (9) is attached to the aluminum lower plate (8) outside the groove (5).

4. A harmonica tube insulation coating withstand voltage profiling test device according to claim 1, characterized in that: The bottom surface of the cover plate (3) is fixedly connected to an aluminum cover plate (12), and the bottom surface of the aluminum cover plate (12) corresponding to the groove (5) is covered with conductive cotton three (13).

5. A harmonica tube insulation coating withstand voltage profiling test device according to claim 1, characterized in that: A plurality of clamping mechanisms (10) are symmetrically arranged on both sides of the upper surface of the base (1).

6. A harmonica tube insulation coating withstand voltage profiling test device according to claim 1, characterized in that: A plurality of limit blocks (11) are symmetrically arranged at both ends of the base (1), and the limit blocks (11) are correspondingly arranged on the outside of the groove (5).

7. A harmonica tube insulation coating withstand voltage profiling test device according to claim 1, characterized in that: Handles (7) are fixedly connected to both the front and rear ends of the cover plate (3).

8. A harmonica tube insulation coating withstand voltage profiling test device according to claim 2, characterized in that: The metal plate (202) is an aluminum plate with a thickness of less than 3 cm, and the distance between the edge of one side of the metal plate (202) used for connecting the detector and the conductive cotton (203) is not less than 0.5 cm.

9. A harmonica tube insulation coating withstand voltage profiling test device according to claim 2, characterized in that: The backing plate (201) is a bakelite board.

10. A harmonica tube insulation coating withstand voltage profiling test device according to claim 5, characterized in that: The clamping mechanism (10) is a horizontal fixing fixture.

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