Jig for measuring voltage and resistance

Abstract

The utility model discloses a jig for measuring voltage and resistance, which relates to the technical field of battery cell detection and comprises a bottom plate, a positive electrode connecting block, a negative electrode connecting block and a test instrument. The positive electrode connecting block and the negative electrode connecting block are connected with a test instrument through wires. The positive electrode connecting block is fixedly connected to the bottom plate, and the negative electrode connecting block is slidably connected to the bottom plate and located on one side of the positive electrode connecting block. The anode connecting block is provided with a plurality of measuring grooves, the measuring grooves are used for placing to-be-measured cells, the measuring grooves are provided with anode contact points, the cathode connecting block is provided with cathode contact points, and the cathode contact points correspond to the anode contact points; and the positive contact point and the negative contact point are circular truncated cone-shaped. Through the arrangement of the utility model, the utility model provides the jig for measuring the voltage and the resistance, which can improve the test efficiency, increase the production efficiency, protect the battery core and reduce the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core detection, in particular to a jig for measuring voltage and resistance. Background Art

[0002] In the lithium-ion battery production process, before electrolyte is injected, the insulation resistance between the positive and negative electrodes of the lithium battery cell must meet certain specifications to ensure the battery's performance and safety. Currently, insulation resistance testers are widely used to detect whether the insulation resistance of battery cells is qualified, but they have certain drawbacks: 1. Only one battery cell can be tested at a time, resulting in low test efficiency and reduced production capacity; 2. The sharp end of the probe can easily pierce the battery cell, posing certain quality and safety risks and increasing costs.

[0003] To this end, the utility model proposes a jig for measuring voltage and resistance that can improve test efficiency, increase production efficiency, protect battery cells, and reduce costs. Utility Model Content

[0004] The purpose of the utility model is to solve the defects in the prior art and to provide a jig for measuring voltage and resistance.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A jig for measuring voltage resistance, comprising a base plate, a positive electrode connection block, a negative electrode connection block, and a test instrument; the positive electrode connection block and the negative electrode connection block are both connected to the test instrument via wires;

[0007] The positive electrode connection block is fixedly connected to the bottom plate, and the negative electrode connection block is slidably connected to the bottom plate and is located on one side of the positive electrode connection block;

[0008] The positive electrode connection block is provided with multiple measuring slots, which are used to place the battery cells to be tested. The measuring slots are provided with positive electrode contact points. The negative electrode connection block is provided with negative electrode contact points, which correspond to the positive electrode contact points. The positive electrode contact points and the negative electrode contact points are both arranged in a truncated cone shape.

[0009] Furthermore, the bottom plate is provided with a slide groove, the negative electrode connection block is slidably connected in the slide groove, and the slide grooves are in multiple groups and are evenly distributed on the bottom plate.

[0010] Furthermore, side openings are provided on both sides of the measuring slot, and the side of the measuring slot adjacent to the negative electrode connection block is an opening structure, and the opening structure is used for the passage of the battery cell to be tested.

[0011] Furthermore, a pneumatic device is fixedly connected to the base plate, a pneumatic push rod at the output end of the pneumatic device is fixedly connected to the negative electrode connection block, the pneumatic device is electrically connected to a pedal device, and the pedal device is used to control the extension and retraction of the pneumatic push rod.

[0012] Furthermore, the test instrument is provided with a plurality of digital display screens, the number of the digital display screens corresponds to the number of the measuring slots, and a label corresponding to the measuring slot is provided on one side of the digital display screen.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are: improving test efficiency and increasing production efficiency; protecting battery cells and reducing costs; being easy to operate and having high safety and environmental protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of the fixture for measuring voltage resistance.

[0017] Figure 2 This is a schematic diagram of the split structure of the fixture for measuring voltage and resistance.

[0018] Figure 3 These are top and side views of the jig for measuring voltage and resistance.

[0019] Figure 4 This is a schematic diagram of the structure of the fixture used to measure voltage and resistance.

[0020] In the figure: 1. Test instrument; 2. Positive terminal connection block; 3. Base plate; 4. Negative terminal connection block; 5. Pneumatic device; 6. Foot pedal. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] Reference Figure 1-Figure 4 A fixture for measuring voltage resistance includes a bottom plate 3, a positive connection block 2, a negative connection block 4, and a test instrument 1; the positive connection block 2 and the negative connection block 4 are both connected to the test instrument 1 through wires;

[0024] The positive electrode connection block 2 is fixedly connected to the bottom plate 3, and the negative electrode connection block 4 is slidably connected to the bottom plate 3 and is located on one side of the positive electrode connection block 2;

[0025] The positive connection block 2 is provided with a plurality of measuring slots for placing the battery cells to be tested. The measuring slots are provided with positive contact points. The negative connection block 4 is provided with negative contact points, which correspond to the positive contact points.

[0026] During use, the battery cell to be tested is placed in the measuring slot, the positive pole of the battery cell contacts the positive pole of the copper cone (positive pole contact point), and the negative pole connecting block 4 is pushed along the length direction of the slide slot so that the negative pole of the copper cone (negative pole contact point) on the negative pole connecting block 4 contacts the negative pole of the battery cell. After the positive and negative poles are connected, the test data is displayed on the digital display screen of the test instrument 1, and each battery cell corresponds one to one.

[0027] In other preferred embodiments, the base plate 3 is provided with a chute into which the negative electrode connection block 4 is slidably connected. The chute is evenly distributed in multiple groups on the base plate 3. The three chute on the base can improve the sliding stability of the negative electrode connection block 4 and control the travel position of the negative electrode connection block 4, thereby facilitating smooth testing and protecting the battery cells.

[0028] In other preferred embodiments, side openings are provided on both sides of the measuring slot, and the side of the measuring slot adjacent to the negative electrode connection block 4 is an opening structure, and the opening structure is used for the passage of the battery cell to be tested.

[0029] In other preferred embodiments, the positive and negative electrode contact points are both truncated cone-shaped. The copper truncated cone positive and negative electrode contact design can effectively protect the tested battery cell from damage.

[0030] In other preferred embodiments, a pneumatic device 5 is fixedly connected to the base plate 3. The pneumatic push rod at the output end of the pneumatic device 5 is fixedly connected to the negative electrode connection block 4. The pneumatic device 5 is electrically connected to a pedal device 6, which is used to control the extension and retraction of the pneumatic push rod. With this structural arrangement, when the pedal device 6 is stepped on, the pneumatic device 5 is fed with air, causing the pneumatic push rod to move and drive the negative electrode connection block 4 to slide toward the positive electrode connection block 2.

[0031] In other preferred embodiments, the test instrument 1 is provided with a plurality of digital display screens, the number of which corresponds to the number of measuring slots, and a label corresponding to the measuring slot is provided on one side of the digital display screen. The digital labels correspond one-to-one with the battery cell data, and the results are more accurate.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A jig for measuring voltage resistance, characterized in that: It includes a bottom plate, a positive electrode connection block, a negative electrode connection block and a testing instrument; the positive electrode connection block and the negative electrode connection block are both connected to the testing instrument through wires; The positive electrode connection block is fixedly connected to the bottom plate, and the negative electrode connection block is slidably connected to the bottom plate and is located on one side of the positive electrode connection block; The positive electrode connection block is provided with a plurality of measuring slots, the measuring slots are used to place the battery cells to be tested, the measuring slots are provided with positive electrode contact points, the negative electrode connection block is provided with negative electrode contact points, the negative electrode contact points correspond to the positive electrode contact points; the positive electrode contact points and the negative electrode contact points are both arranged in a truncated cone shape.

2. A jig for measuring voltage resistance according to claim 1, characterized in that: The bottom plate is provided with a slide groove, and the negative electrode connecting block is slidably connected in the slide groove. The slide grooves are multiple groups and are evenly distributed on the bottom plate.

3. A jig for measuring voltage resistance according to claim 1, characterized in that: Side openings are provided on both sides of the measuring slot, and a side of the measuring slot adjacent to the negative electrode connecting block is an opening structure, and the opening structure is used for the passage of the battery cell to be tested.

4. A jig for measuring voltage resistance according to claim 1, characterized in that: A pneumatic device is fixedly connected to the bottom plate, a pneumatic push rod at the output end of the pneumatic device is fixedly connected to the negative electrode connection block, the pneumatic device is electrically connected to a pedal device, and the pedal device is used to control the extension and retraction of the pneumatic push rod.

5. A jig for measuring voltage resistance according to claim 1, characterized in that: The testing instrument is provided with a plurality of digital display screens, the number of which corresponds to the number of the measuring slots, and one side of the digital display screen is provided with a label corresponding to the measuring slot.

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