New energy vehicle battery copper bar voltage test equipment

Abstract

The invention discloses a voltage test and detection device for a copper busbar of a battery of a new energy vehicle, comprising a frame, a lower die, an upper die and a driving mechanism; the frame comprises a fixed plate, a bracket and a movable plate; the lower die is fixed on the upper surface of the fixed plate, the lower die comprises a lower insulating seat, a first electrode and a second electrode, and a lower positioning groove is concavely arranged on the upper surface of the lower insulating seat; by sequentially arranging an insulating layer and a conductive layer in each positioning groove, in the process of voltage testing the copper busbar of the battery of the new energy vehicle, it is not necessary to manually wrap the copper busbar with copper foil, and only the copper busbar of the battery of the new energy vehicle needs to be directly inserted, which saves time and labor, and effectively improves the efficiency of the test; at the same time, the cooperation of the insulating layer and the conductive layer enables the conductive layer to better fit closely with the insulating outer layer of the copper busbar of the battery of the new energy vehicle, so as to ensure that each point on the copper busbar of the battery of the new energy vehicle can be tested, thereby greatly improving the accuracy of the test result, avoiding the outflow of defective products, and eliminating safety hazards.

Description

Technical Field

[0001] The present invention relates to the field of detection equipment technology, and in particular to a new energy vehicle battery copper bar voltage testing device. Background Art

[0002] New energy vehicle batteries are divided into two categories: storage batteries and fuel cells. Storage batteries are suitable for pure electric vehicles, including lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, and ternary lithium batteries. Fuel cells are specifically used in fuel cell electric vehicles, including alkaline fuel cells (AFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC), proton exchange membrane fuel cells (PEMFC), and direct methanol fuel cells (DMFC).

[0003] There are slight differences depending on the type of new energy vehicle. In a pure electric vehicle equipped only with a battery, the battery serves as the sole power source for the vehicle's drive system. In a hybrid vehicle equipped with a traditional engine (or fuel cell) and a battery, the battery can serve as both the main power source and the auxiliary power source for the vehicle's drive system. It can be seen that at low speeds and when starting, the battery serves as the main power source for the vehicle's drive system; when accelerating at full load, it serves as an auxiliary power source; and when driving normally or decelerating or braking, it serves as an energy storage system.

[0004] When using new energy vehicle batteries, copper bars are required for circuit lap connection, and the copper bars also play a supporting role. The main structure of the current new energy vehicle battery copper bar includes a conductive body, which is made of copper. The outer surface of the conductive body is electroplated, and an insulating outer layer is formed by powder coating outside the electroplating layer, and the two ends of the conductive body extend out of the two ends of the insulating outer layer. In order to ensure the insulation of the new energy vehicle battery copper bar in the process of supporting the battery, it is necessary to test the insulation and high voltage resistance of the powder coating after the new energy vehicle battery copper bar is completed. In the prior art, it is generally adopted to directly manually wrap copper foil on the insulating outer layer to play a conductive role. However, the manual copper foil wrapping method is time-consuming and labor-intensive, and it is impossible to ensure that the copper foil and the insulating outer layer are closely attached, resulting in some points on the new energy vehicle battery copper bar that cannot be tested, and the test results are inaccurate, resulting in the outflow of defective products, which brings safety hazards to use. Therefore, it is necessary to study a solution to solve the above problems. Summary of the invention

[0005] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a new energy vehicle battery copper bar voltage testing and detection device, which can effectively improve the accuracy of the test results.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A voltage testing device for copper bars of new energy vehicle batteries, comprising a frame, a lower die, an upper die and a driving mechanism;

[0008] The frame includes a fixed plate, a bracket and a movable plate; the bracket is arranged on the fixed plate, and the movable plate is arranged on the bracket so as to be movable up and down and is located directly above the fixed plate;

[0009] The lower mold is fixed on the upper surface of the fixed plate, and the lower mold includes a lower insulating seat, a first electrode and a second electrode for conducting with one end of the conductive body of the copper busbar of the new energy vehicle battery. The upper surface of the lower insulating seat is concavely provided with a lower positioning groove adapted to the copper busbar of the new energy vehicle battery, and a lower insulating layer and a lower conductive layer are sequentially arranged in the lower positioning groove, and the lower conductive layer is superimposed on the lower insulating layer. The first electrode and the second electrode are separately arranged on the lower insulating seat, and the first electrode is conductively connected with the lower conductive layer;

[0010] The upper mold is fixed to the lower surface of the movable plate and is located directly above the lower mold. The upper mold includes an upper insulating seat, a third electrode, and a fourth electrode for conducting with the other end of the conductive body of the new energy vehicle battery copper busbar. The lower surface of the upper insulating seat is concavely provided with an upper positioning groove adapted to the new energy vehicle battery copper busbar. An upper insulating layer and an upper conductive layer are sequentially arranged in the upper positioning groove. The upper conductive layer is superimposed on the upper insulating layer. The third electrode and the fourth electrode are separately arranged on the upper insulating seat, and the third electrode is conductively connected with the upper conductive layer.

[0011] The driving mechanism is arranged on the bracket and drives the movable plate to move up and down.

[0012] As a preferred solution, the lower insulating layer and the upper insulating layer are insulating sponges or insulating tapes, and the lower conductive layer and the upper conductive layer are conductive glue or conductive cotton.

[0013] As a preferred solution, the bracket is a gantry, which includes a crossbeam plate and two side plates. The two side plates are arranged on the left and right, and the upper ends of the two side plates are respectively fixedly connected to the left and right ends of the crossbeam plate, and the lower ends of the two side plates are respectively fixedly connected to the two ends of the fixed plate.

[0014] As a preferred solution, guide rods are provided on the inner sides of the two side plates, and the two guide rods extend vertically. The upper and lower ends of each guide rod are respectively fixedly connected to the crossbeam plate and the fixed plate. Guide holes are opened at both ends of the movable plate, and the two guide rods are respectively inserted into the guide holes. The movable plate moves up and down along the two guide rods.

[0015] As a preferred solution, the driving mechanism is a cylinder, which is fixed on the front side of the crossbeam plate. The driving mechanism has a piston rod extending downward, and the lower end of the piston rod is fixedly connected to the movable plate.

[0016] As a preferred solution, the driving mechanism is a double-rod cylinder having two piston rods, and the lower ends of the two piston rods are fixedly connected to the middle part of the upper surface of the movable plate.

[0017] As a preferred solution, the thickness of the lower insulating layer and the upper insulating layer is 2.0 mm, and the thickness of the lower conductive layer and the upper conductive layer is 0.1 mm.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0019] By sequentially arranging an insulating layer and a conductive layer in each positioning groove, there is no need to manually wrap the copper foil during the voltage test of the new energy vehicle battery copper busbar. The new energy vehicle battery copper busbar only needs to be directly inserted, which saves time and effort and effectively improves the test efficiency. At the same time, the cooperation of the insulating layer and the conductive layer enables the conductive layer to better fit closely with the insulating outer layer of the new energy vehicle battery copper busbar, ensuring that all points on the new energy vehicle battery copper busbar can be tested, greatly improving the accuracy of the test results, avoiding the outflow of defective products, and eliminating safety hazards.

[0020] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present invention;

[0022] Figure 2 It is the front view of the preferred embodiment of the present invention

[0023] Figure 3 It is a partial exploded view of a preferred embodiment of the present invention;

[0024] Figure 4 It is a partial exploded view from another angle of a preferred embodiment of the present invention.

[0025] Description of the accompanying drawings:

[0026] 10. Frame 11. Fixing plate

[0027] 12. Bracket 121, crossbeam plate

[0028] 122, side plate 123, guide rod

[0029] 13. Movable plate 131. Guide hole

[0030] 20. Lower die 21. Lower insulation seat

[0031] 22. Lower insulating layer 23. Lower conductive layer

[0032] 201, lower positioning groove 30, upper die

[0033] 31. Upper insulation seat 32. Upper insulation layer

[0034] 33. Upper conductive layer 34. Fourth electrode

[0035] 301, upper positioning groove 40, driving mechanism

[0036] 41. Piston rod 50. New energy vehicle battery copper bar

[0037] 51. Conductive body 52. ​​Insulating outer layer. DETAILED DESCRIPTION

[0038] Please refer to Figures 1 to 4 As shown, it shows the specific structure of a preferred embodiment of the present invention, including a frame 10, a lower mold 20, an upper mold 30 and a driving mechanism 40.

[0039] The frame 10 includes a fixed plate 11, a bracket 12 and a movable plate 13; the bracket 12 is arranged on the fixed plate 11, and the movable plate 13 can be movably arranged on the bracket 12 up and down and is located directly above the fixed plate 11; in the embodiment, the bracket 12 is a gantry, which includes a crossbeam plate 121 and two side plates 122, the two side plates 122 are arranged left and right, the upper ends of the two side plates 122 are respectively fixedly connected to the left and right ends of the crossbeam plate 121, and the lower ends of the two side plates 122 are respectively fixedly connected to the two ends of the fixed plate 11; and, guide rods 123 are arranged on the inner sides of the two side plates 122, the two guide rods 123 extend vertically, and the upper and lower ends of each guide rod 123 are respectively fixedly connected to the crossbeam plate 121 and the fixed plate 11, and guide holes 131 are opened at both ends of the movable plate 13, and the two guide rods 123 are respectively inserted into the guide holes 131, and the movable plate 13 moves up and down along the two guide rods 123 to achieve smooth up and down movement.

[0040] The lower mold 20 is fixed on the upper surface of the fixed plate 11. The lower mold 20 includes a lower insulating seat 21, a first electrode (not shown in the figure) and a second electrode (not shown in the figure) for conducting with one end of the conductive body 51 of the new energy vehicle battery copper bar 50. The upper surface of the lower insulating seat 21 is concavely provided with a lower positioning groove 201 adapted to the new energy vehicle battery copper bar 50. The lower positioning groove 201 is sequentially provided with a lower insulating layer 22 and a lower conductive layer 23. The lower conductive layer 23 is superimposed on the lower insulating layer 22. The first electrode and the second electrode are separately arranged on the lower insulating seat 21, and the first electrode is conductively connected with the lower conductive layer 23. In this embodiment, the lower insulating layer 22 is an insulating sponge or insulating tape, and the thickness of the lower insulating layer 22 is 2.0 mm. The lower conductive layer 23 is a conductive glue or conductive cotton, and the thickness of the lower conductive layer 23 is 0.1 mm, so as to better fit with the insulating outer layer 52 of the new energy vehicle battery copper bar 50.

[0041] The upper mold 30 is fixed to the lower surface of the movable plate 13 and is located directly above the lower mold 20. The upper mold 30 includes an upper insulating seat 31, a third electrode (not shown in the figure) and a fourth electrode 34 for conducting with the other end of the conductive body 51 of the new energy vehicle battery copper bar 50. The lower surface of the upper insulating seat 31 is concavely provided with an upper positioning groove 301 adapted to the new energy vehicle battery copper bar 50. The upper positioning groove 301 is sequentially provided with an upper insulating layer 32 and an upper conductive layer 33. The upper conductive layer 33 is superimposed on the upper insulating layer 32. The third electrode and the fourth electrode 34 are separately arranged on the upper insulating seat 31, and the third electrode is conductively connected with the upper conductive layer 33. In this embodiment, the upper insulating layer 32 is an insulating sponge or insulating tape, and the thickness of the upper insulating layer 32 is 2.0 mm. The upper conductive layer 33 is a conductive glue or conductive cotton, and the thickness of the upper conductive layer 33 is 0.1 mm, so as to better fit with the insulating outer layer 52 of the new energy vehicle battery copper bar 50.

[0042] The driving mechanism 40 is disposed on the bracket 12 and drives the movable plate 13 to move up and down. In this embodiment, the driving mechanism 40 is a cylinder, which is fixed on the front side of the cross beam plate 121. The driving mechanism 40 extends a piston rod 41 downward, and the lower end of the piston rod 41 is fixedly connected to the movable plate 13. In addition, the driving mechanism 40 is a double-rod cylinder, which has two piston rods 41, and the lower ends of the two piston rods 41 are fixedly connected to the middle of the upper surface of the movable plate 13.

[0043] The working principle of this embodiment is described in detail as follows:

[0044] During operation, first, the first electrode and the third electrode are connected to the positive and negative electrodes of the external voltage output circuit respectively, and the second electrode and the fourth electrode 34 are connected to the positive and negative electrodes of the external voltage output circuit respectively; then, the new energy vehicle battery copper bar 50 is placed in the lower positioning groove 201, and the lower side of the new energy vehicle battery copper bar 50 is embedded in the lower positioning groove 201, so that the insulating outer layer 52 of the new energy vehicle battery copper bar 50 is in contact with the lower conductive layer 23, and one end of the conductive body 51 of the new energy vehicle battery copper bar 50 is in contact with the second electrode and is not in contact with the lower conductive layer 23; then, the driving mechanism 40 drives the movable plate 13 to move downward, so that the upper mold 30 and the lower mold 20 are molded together. After the mold is in place, the upper side of the new energy vehicle battery copper bar 50 is embedded in the upper positioning groove 201. In the groove 301, the insulating outer layer 52 of the new energy vehicle battery copper bar 50 is in contact with the upper conductive layer 33, and the other end of the conductive body 51 of the new energy vehicle battery copper bar 50 is in contact with the fourth electrode 34 and is not in contact with the upper conductive layer 33; then, the external voltage output circuit is powered on to input high voltage electricity to the new energy vehicle battery copper bar 50 for a high voltage resistance test. After the test is completed, the driving mechanism 40 drives the movable plate 13 to move upward, so that the upper mold 30 moves upward and separates from the lower mold 20. Then, the new energy vehicle battery copper bar 50 is taken out and the insulating outer layer 52 of the new energy vehicle battery copper bar 50 is checked for breakdown. If there is no breakdown, it indicates that the new energy vehicle battery copper bar 50 is qualified, otherwise, it indicates that the new energy vehicle battery copper bar 50 is unqualified.

[0045] The design focus of the present invention is that by sequentially arranging an insulating layer and a conductive layer in each positioning groove, there is no need to manually wrap the copper foil during the voltage test of the new energy vehicle battery copper busbar. The new energy vehicle battery copper busbar only needs to be directly inserted, which saves time and effort and effectively improves the test efficiency. At the same time, the cooperation of the insulating layer and the conductive layer enables the conductive layer to better fit closely with the insulating outer layer of the new energy vehicle battery copper busbar, ensuring that all points on the new energy vehicle battery copper busbar can be tested, greatly improving the accuracy of the test results, avoiding the outflow of defective products, and eliminating safety hazards.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new energy vehicle battery copper bar voltage test and detection equipment, characterized by: It includes a frame, a lower die, an upper die and a driving mechanism; The frame includes a fixed plate, a bracket and a movable plate; the bracket is arranged on the fixed plate, and the movable plate is arranged on the bracket so as to be movable up and down and is located directly above the fixed plate; The lower mold is fixed on the upper surface of the fixed plate, and the lower mold includes a lower insulating seat, a first electrode and a second electrode for conducting with one end of the conductive body of the copper busbar of the new energy vehicle battery. The upper surface of the lower insulating seat is concavely provided with a lower positioning groove adapted to the copper busbar of the new energy vehicle battery, and a lower insulating layer and a lower conductive layer are sequentially arranged in the lower positioning groove, and the lower conductive layer is superimposed on the lower insulating layer. The first electrode and the second electrode are separately arranged on the lower insulating seat, and the first electrode is conductively connected with the lower conductive layer; The upper mold is fixed to the lower surface of the movable plate and is located directly above the lower mold. The upper mold includes an upper insulating seat, a third electrode, and a fourth electrode for conducting with the other end of the conductive body of the new energy vehicle battery copper busbar. The lower surface of the upper insulating seat is concavely provided with an upper positioning groove adapted to the new energy vehicle battery copper busbar. An upper insulating layer and an upper conductive layer are sequentially arranged in the upper positioning groove. The upper conductive layer is superimposed on the upper insulating layer. The third electrode and the fourth electrode are separately arranged on the upper insulating seat, and the third electrode is conductively connected with the upper conductive layer. The driving mechanism is arranged on the bracket and drives the movable plate to move up and down; The lower insulating layer and the upper insulating layer are insulating sponges or insulating tapes, and the lower conductive layer and the upper conductive layer are conductive glue or conductive cotton; The support is a gantry frame, which includes a crossbeam plate and two side plates. The two side plates are arranged on the left and right sides, and the upper ends of the two side plates are respectively fixedly connected to the left and right ends of the crossbeam plate, and the lower ends of the two side plates are respectively fixedly connected to the two ends of the fixed plate.

2. The new energy vehicle battery copper bar voltage test detection equipment according to claim 1 is characterized in that: Guide rods are arranged on the inner sides of the two side plates, and the two guide rods extend vertically. The upper and lower ends of each guide rod are fixedly connected to the crossbeam plate and the fixed plate respectively. Guide holes are opened at both ends of the movable plate, and the two guide rods are respectively inserted into the guide holes. The movable plate moves up and down along the two guide rods.

3. The new energy vehicle battery copper bar voltage test detection equipment according to claim 1 is characterized in that: The driving mechanism is a cylinder, which is fixed on the front side of the cross beam plate. The driving mechanism has a piston rod extending downward, and the lower end of the piston rod is fixedly connected to the movable plate.

4. The new energy vehicle battery copper bar voltage test detection equipment according to claim 3 is characterized in that: The driving mechanism is a double-rod cylinder having two piston rods, the lower ends of the two piston rods are fixedly connected to the middle of the upper surface of the movable plate.

5. The new energy vehicle battery copper bar voltage test detection equipment according to claim 1 is characterized in that: The thickness of the lower insulating layer and the upper insulating layer is 2.0 mm, and the thickness of the lower conductive layer and the upper conductive layer is 0.1 mm.

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