Voltage-withstanding and short-circuit-preventing detection tool suitable for nanocrystalline copper bar assembly

Abstract

The utility model discloses a withstand voltage and short circuit prevention detection tool suitable for a nanocrystalline copper bar assembly, which comprises a bottom plate, an insulation and withstand voltage tester, an air cylinder, an air cylinder fixing tool, a product fixing tool, a detection tool, a control button and an indicating lamp, and is characterized in that the insulation and withstand voltage tester, the air cylinder fixing tool and the product fixing tool are fixed on the bottom plate; the air cylinder is fixed on the air cylinder fixing tool, the detection tool is fixed on the air cylinder, the product fixing tool is arranged at a preset distance in front of the detection tool, a to-be-detected product is arranged on the product fixing tool, and the detection tool is provided with a conductive column corresponding to the to-be-detected product. The voltage-withstanding and short-circuit-preventing detection tool is convenient to operate, high in reliability, strong in repeatability and stable in quality; a profiling structure is arranged in the product fixing tool, and the product fixing tool can be well matched with a product. The tool can greatly improve the detection efficiency, has the function of preventing error detection and missing detection, prevents production errors, and can reduce the safety operation risk of personnel.

Description

TECHNICAL FIELD

[0001] The utility model belongs to copper bar assembly detection tool technical field, concretely relates to a kind of voltage-withstanding short-circuit detection tool suitable for nanocrystalline copper bar assembly. BACKGROUND

[0002] Copper bar assembly is a kind of multilayer composite structure connecting row, with low impedance, anti-interference, good reliability, space saving, assembly simple and fast and the like. It is widely used in electric power and hybrid traction, electric traction equipment, cellular communication, base station, large network equipment, large and medium-sized computer, electric switch system, welding system, military equipment system, power generation system, power conversion module of electric equipment and the like field.

[0003] In the field of electric vehicles, copper bar assembly is used to realize the electrical connection between electric core and electric core, to form the required series and parallel connection. It can not only be used as sampling point of electric core voltage and temperature, but also has ductility to cope with the influence of electric core expansion. Laser welding technology is widely used in the connection of copper bar assembly. Through visual, temperature sensing, photoelectric and other multiple detection means, the data flow of weld appearance, light intensity and temperature is collected in real time, so as to judge the weld quality and improve production efficiency and quality.

[0004] Flexible busbar is a development direction of copper bar assembly, with the advantages of convenient installation, good bending property, small current transmission loss and the like, and is suitable for control system and power distribution system in extreme environment.

[0005] However, during use, flexible busbar will be subjected to high voltage of about 3KV, and the insulation voltage requirement of the product is very high. It is necessary to ensure that there is no short circuit between any two copper bars. However, in actual production and processing, copper bar will leave a lot of copper chips on the surface after wire cutting and bending. Since the distance between each copper bar in the product injection area is relatively close, generally only about 2mm, if the copper chips are mixed in the plastic injection process, it will cause short circuit between two copper bars, resulting in unqualified product. Therefore, before the product is shipped, it is necessary to carry out stable and reliable voltage test to ensure that there is no short circuit between any two copper bars. The existing detection process is completed by manual operation. On the one hand, there is a safety hazard in manual operation under high voltage, and on the other hand, manual operation detection may cause misdiagnosis and missed diagnosis, and manual operation efficiency is not high. Therefore, it is of great significance to design a voltage-withstanding short-circuit detection tool suitable for nanocrystalline copper bar assembly. UTILITY MODEL CONTENTS

[0006] In view of the above problems, the utility model provides a voltage-withstanding short-circuit detection tool suitable for nanocrystalline copper bar assembly, which meets the product voltage test requirement.

[0007] In order to achieve the above object, the technical scheme adopted by the utility model is

[0008] A kind of pressure short-circuit detection tool suitable for nanocrystalline copper row assembly, including bottom plate, insulation voltage tester, cylinder, cylinder fixed tool, product fixed tool, detection tool, control button and pilot lamp, the insulation voltage tester, cylinder fixed tool, product fixed tool are fixed on bottom plate, the cylinder is fixed on cylinder fixed tool, the detection tool is fixed on cylinder, product fixed tool is set at the predetermined distance place in front of detection tool, to be detected product is set on product fixed tool, detection tool has corresponding conductive column with to be detected product.

[0009] Further technical scheme, quick clamp is further provided on product fixed tool, to realize the clamping positioning of to be detected product.

[0010] Further technical scheme, the conductive column of the detection tool is three, and is set to be different in length, and is respectively corresponding to three wire terminals of to be detected product.

[0011] Further technical scheme, the upper surface of product fixed tool is provided with the profiling structure corresponding to the shape of to be detected product, to facilitate the placement positioning of product.

[0012] Further technical scheme, the control button includes button one, button two and button three, the button one is forward button, for controlling cylinder to drive detection tool to advance;The button two is test button, for starting test procedure;Button three is back button, for controlling cylinder to drive detection tool to retreat back.

[0013] Further technical scheme, the pilot lamp includes red light and green light, when detecting, red light long bright indicates that there is short circuit, and product is determined to be unqualified;Green light long bright indicates that there is no short circuit, and product is determined to be qualified.

[0014] The utility model discloses through setting the size of cylinder air pressure, can even speed detection tool and the wire terminal of copper row assembly contact, simultaneously, product is fixed on product fixed tool, and is fixed with quick clamp, can prevent product left and right swing in the testing process and cause testing data unstable well;Tool operation is convenient, and reliability is high, and repeatability is strong, and quality is stable;Product fixed tool has profiling structure inside, can well adapt product.

[0015] The pressure short-circuit detection tool can greatly improve the detection efficiency, prevent production errors, reduce the safety operation risk of personnel, and has the functions of preventing errors and missing detection. ACCURACY

[0016] Figure 1 It is the whole structure schematic view of the pressure short-circuit detection tool.

[0017] Figure 2 is a front view of the product fixing tool structure of the utility model; Figure 1

[0018] Figure 3 is a front view of the product fixing tool structure of the utility model; Figure 1

[0019] Figure 4 is a schematic view of the product fixing tool structure of the utility model;

[0020] Figure 5 is a schematic view of the product (nanocrystalline copper bar assembly) to be detected;

[0021] In the figure: 1, bottom plate; 2, insulation voltage tester; 3, air cylinder; 4, air cylinder fixing tool; 5, product fixing tool; 6, detection tool; 7, product to be detected; 8, conductive column; 9, quick clamp; 10, button one; 11, button two; 12, button three; 13, red light; 14, green light; 15, profiling structure. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope protected by the utility model.

[0023] As shown in Figures 1-4 The utility model discloses a voltage short circuit detection tool suitable for nanocrystalline copper bar assembly, including bottom plate 1, insulation voltage tester 2, air cylinder 3, air cylinder fixing tool 4, product fixing tool 5, detection tool 6, control button and pilot lamp, insulation voltage tester 2, air cylinder fixing tool 4, product fixing tool 5 are all fixed on bottom plate 1 through screw, air cylinder 3 is fixed on air cylinder fixing tool 4, detection tool 6 is fixed on air cylinder 3, changes detection tool 6 position through air cylinder 3 push or shrink. Product fixing tool 5 is set up at the predetermined distance place before detection tool 6, and the product to be detected 7 is set up on product fixing tool 5, and detection tool 6 has the conductive column 8 corresponding with the product to be detected 7. Quick clamp 9 is also screwed on product fixing tool 5, is used for realizing the clamping positioning of the product to be detected 7.

[0024] The conductive column 8 of the detection tool 6 of the utility model is three, and is set up with different lengths, and is corresponding with three wire terminals of the product to be detected 7 respectively.

[0025] Figure 5 ​​The structure schematic view of the product to be detected (nanocrystalline copper row assembly) includes two groups of wire terminals A, B, C and A1, B1, C1, wherein A and A1, B and B1 and C and C1 are in contact communication respectively, the injection molding area of the middle area of the product is generally only about 2mm due to the close distance between each copper row, and the copper scraps generated in the processing process will cause short circuit between two copper rows if mixed in the plastic injection molding process, thereby affecting the use of the product, and therefore the tooling is designed to detect the short circuit resistance of the copper row assembly.

[0026] In order to facilitate positioning of the product, a profiling structure 15 corresponding to the shape of the product to be detected 7 is arranged on the upper surface of the product fixing tooling 5, so as to facilitate positioning of the product.

[0027] The control button includes a button one 10, a button two 11 and a button three 12, the button one 10 is a forward button for controlling the forward movement of the detection tooling 6 driven by the cylinder 3, the button two 11 is a test button for starting the test program, and the button three 12 is a backward button for controlling the backward movement of the detection tooling 6 driven by the cylinder 3. The indicator light includes a red light 13 and a green light 14, the red light 13 is long bright when detecting, indicating that there is a short circuit, and the product is determined to be unqualified, and the green light 14 is long bright, indicating that there is no short circuit, and the product is determined to be qualified.

[0028] The tooling for detecting the short circuit resistance of the nanocrystalline copper row assembly is suitable for detecting the short circuit resistance of the nanocrystalline copper row assembly, and includes the following steps during the detection:

[0029] The first step is to place the copper row assembly product, the second step is to press the quick clamp 9 to fix the product, the third step is to press the button one 10 to connect the power supply of the cylinder 3, the spring is ejected, the conductive column 8 of the detection tooling 6 is in contact with the wire terminals A, B and C of the product respectively, the fourth step is to press the button two 11 to start the short circuit resistance detection program to detect whether the copper row wire terminals A-A1 and B-B1, A-A1 and C-C1 and C-C1 and B-B1 are short-circuited, if there is a short circuit, the red light 13 is bright, and if there is no short circuit, the green light 14 is bright, the fifth step is to end the voltage resistance detection program, press the button three 12 to connect the power supply of the cylinder 3, the spring is retracted, the detection tooling 6 is separated from the product and is reset, the sixth step is to cut off the power supply, lift the quick clamp 9 and take out the product, and the seventh step is to repeat the above process to complete the detection of the subsequent product.

[0030] The short circuit resistance detection program is set by the insulation voltage resistance tester 2 in advance, and the voltage resistance test conditions are as follows: voltage 4.3kv, parameter DC, voltage rise, waiting test time, voltage drop, all 1 second. That is, the copper row A-A1 and B-B1 are detected first, then the detection of A-A1 and C-C1 and C-C1 and B-B1 is performed in turn.

[0031] This utility model features an insulation withstand voltage and short-circuit protection testing fixture that is easy to operate, highly reliable, repeatable, and provides stable withstand voltage test results. The fixture's design includes a contoured structure 15, which allows for excellent product compatibility. This withstand voltage and short-circuit protection testing fixture significantly improves testing efficiency and prevents false positives and missed detections, thus reducing production errors and minimizing operational safety risks for personnel.

[0032] It should be noted that the insulation withstand voltage tester 2 described in this utility model is a commercially available device. This utility model uses the Tonghui TH9320-S model insulation withstand voltage tester manufactured by Changzhou Tonghui Electronics Co., Ltd.

[0033] The electrical connections of other conductive lines and power supply lines in this invention are all conventional connections and will not be described in detail here.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A withstand voltage and short-circuit protection testing fixture suitable for nanocrystalline copper busbar assemblies, characterized in that, The device includes a base plate (1), an insulation withstand voltage tester (2), a cylinder (3), a cylinder fixing fixture (4), a product fixing fixture (5), a testing fixture (6), control buttons, and indicator lights. The insulation withstand voltage tester (2), the cylinder fixing fixture (4), and the product fixing fixture (5) are fixed on the base plate (1). The cylinder (3) is fixed on the cylinder fixing fixture (4). The testing fixture (6) is fixed on the cylinder (3). The product fixing fixture (5) is set at a predetermined distance in front of the testing fixture (6). The product to be tested (7) is set on the product fixing fixture (5). The testing fixture (6) has conductive posts (8) corresponding to the product to be tested (7).

2. The withstand voltage and short-circuit protection testing fixture for nanocrystalline copper busbar assemblies according to claim 1, characterized in that, A quick clamp (9) is also provided on the product fixing fixture (5) to achieve clamping and positioning of the product (7) to be tested.

3. The withstand voltage and short-circuit protection testing fixture for nanocrystalline copper busbar assemblies according to claim 1, characterized in that, The testing fixture (6) has three conductive posts (8) of different lengths, which correspond to the three wire terminals of the product to be tested (7).

4. The withstand voltage and short-circuit protection testing fixture for nanocrystalline copper busbar assemblies according to claim 1, characterized in that, A contour structure (15) corresponding to the shape of the product to be tested (7) is provided on the upper surface of the product fixing fixture (5) to facilitate the placement and positioning of the product.

5. The withstand voltage and short-circuit protection testing fixture for nanocrystalline copper busbar assemblies according to claim 1, characterized in that, The control buttons include button one (10), button two (11) and button three (12). Button one (10) is a forward button, used to control the cylinder (3) to drive the testing fixture (6) forward; button two (11) is a test button, used to start the test program; button three (12) is a backward button, used to control the cylinder (3) to drive the testing fixture (6) backward back to its original position.

6. The withstand voltage and short-circuit protection testing fixture for nanocrystalline copper busbar assemblies according to claim 1, characterized in that, The indicator lights include a red light (13) and a green light (14). When the test is performed, the red light (13) is constantly lit, indicating that there is a short circuit and the product is deemed unqualified; the green light (14) is constantly lit, indicating that there is no short circuit and the product is deemed qualified.

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