Batch electric detection tool for lithium batteries

Abstract

The utility model belongs to the technical field of lithium battery monitoring, and particularly relates to a batch electric detection tool for lithium batteries, which comprises a plurality of mounting assemblies arranged on a base and a clamping device, the base is further provided with a plurality of sets of electric detection assemblies, each clamping device is located over the corresponding installation assembly, each set of electric detection assembly is located on the side portion of the installation assembly, and the multiple installation assemblies and the multiple clamping devices clamp lithium batteries to be detected in batches. And the electric detection assembly is used for detecting the lithium battery to be detected. The lithium battery detection device does not need manual operation after being electrified, the safety of operators is protected, a plurality of groups of electric detection assemblies are arranged, a plurality of lithium batteries can be detected at one time, the working efficiency is improved, the clamp device can be adjusted, the lithium battery detection device is suitable for lithium batteries of various specifications, and the practicability is high.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery testing technology, specifically relating to batch electrical testing fixtures for lithium batteries. Background Technology

[0002] Lithium-ion batteries are a type of rechargeable battery that primarily relies on the movement of lithium ions between the positive and negative electrodes to function. During the production process, lithium batteries require quality inspection, which necessitates the use of testing fixtures to clamp the batteries to be inspected. For example, patent CN211978989U discloses a mass production testing fixture for lithium batteries, comprising a chute, a base mounted on the bottom of the chute, multiple battery columns placed inside the chute, a slot in the center of the closed end of the chute, and a clamping frame engaged within the slot. The clamping frame includes a fixed clamping plate, one end of which is connected to one end of a connecting plate, and the other end of which is connected to one end of a mounting frame. The fixed clamping plate is engaged within the slot, and the inner wall of the connecting plate is flush with the inner wall of the closed end of the chute. Pin holes are formed on both outer walls of the fixed clamping plate, and spring pins are installed on both inner walls of the slot, engaging within the pin holes. A clamping mechanism is installed within the mounting frame.

[0003] However, existing lithium battery testing fixtures vary in design, but they can generally only test one lithium battery at a time, making batch testing inefficient. Therefore, we propose a batch testing fixture for lithium batteries. Utility Model Content

[0004] The purpose of this invention is to provide a batch electrical testing fixture for lithium batteries. After being powered on, it requires no manual operation, thus protecting the safety of the operators. It is equipped with several sets of electrical testing components, which can test multiple lithium batteries at the same time, improving work efficiency. The clamping device is adjustable and suitable for lithium batteries of various specifications, making it highly practical. The clamping device and electrical testing components are respectively equipped with a first spring and a second spring, which can activate a buffering effect while performing their functions, protecting the lithium batteries being tested.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A batch electrical testing fixture for lithium batteries includes several mounting components and clamping devices mounted on a base; the base is also provided with several sets of electrical testing components, each clamping device is located directly above the corresponding mounting component, and each set of electrical testing components is located on the side of the mounting component. The several mounting components and the several clamping devices complete the batch clamping of lithium batteries to be tested, and the electrical testing components are used to inspect the lithium batteries to be tested.

[0007] In some embodiments, the mounting assembly includes a back plate disposed on the side wall of the base, a bottom plate connected to the bottom of the back plate, a slide rail provided on the bottom plate, and two clamping plates movably disposed inside the slide rail.

[0008] In some embodiments, the bottom ends of the base plate are connected to rotating rods via bearings. The rotating rods have opposite threads at both ends. A handwheel is connected to one end of the rotating rod. Nuts are threaded onto the opposite threads at both ends of the rotating rod. The two nuts are fixedly connected to the bottom of the two clamping plates respectively.

[0009] In some embodiments, the clamping device includes a mounting block disposed on the top of the back plate, the mounting block having a vertically downward first electric telescopic rod, the output end of the first electric telescopic rod having a first block, the lower surface of the first block having a first spring, the lower end of the first spring having a second block, and the second block being located directly above the base plate.

[0010] In some embodiments, the electrical testing assembly includes a mounting strip disposed on the base, a second electric telescopic rod disposed laterally on the mounting strip, a push block disposed at the output end of the second electric telescopic rod, and two second springs disposed on the side of the push block, with the ends of the two second springs respectively disposed on the electrical testing electrode head.

[0011] In some embodiments, two electrical testing electrode heads are connected to a lithium battery testing device via wires.

[0012] The technical effects achieved by this utility model are as follows:

[0013] In this invention, the electrical testing device is placed in a designated position, and then the lithium battery to be tested is placed between two clamping plates. By rotating the handwheel, both nuts move towards the center simultaneously, causing the two clamping plates to move towards the center simultaneously to complete the lateral clamping of the lithium battery to be tested. After the lithium battery is laterally clamped, the output end of the first electric telescopic rod drives the first plate vertically downward, and then drives the second plate to further clamp the lithium battery vertically through the first spring. Finally, the output end of the second electric telescopic rod drives the push block forward, and the push block drives the two electrical testing electrode heads to contact the lithium battery through the second spring. The battery has positive and negative terminals in contact; two electrical testing electrode heads are connected to the testing equipment to detect the voltage of the lithium battery and its continuous discharge performance. No manual operation is required after power-on, protecting operator safety. Several sets of electrical testing components are provided, allowing for the simultaneous testing of multiple lithium batteries, improving work efficiency. The clamping device is adjustable and suitable for various specifications of lithium batteries, making it highly practical. The clamping device and electrical testing components are equipped with a first spring and a second spring, which, while fulfilling their functions, also provide a buffering effect to protect the lithium battery being tested. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the base, mounting components, electrical detection components, and clamping device in this utility model.

[0015] Figure 2 This is a top view of the connection between the base, mounting components, electrical detection components, and clamping device in this utility model.

[0016] Figure 3 This is a side view of the connection between the base, mounting components, electrical detection components, and clamping device in this utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the batch electrical testing fixture for lithium batteries in this utility model;

[0018] Figure 5 This is a schematic diagram of the overall structure of the mounting components in this utility model;

[0019] Figure 6 This is a schematic diagram of the overall structure of the clamping plate, rotating rod, handwheel, and nut connection in this utility model;

[0020] Figure 7 This is a top view of the electrical detection component in this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Base; 2. Mounting assembly; 3. Electrical testing assembly; 4. Clamping device; 201. Back plate; 202. Base plate; 203. Clamping plate; 204. Rotating rod; 205. Handwheel; 206. Nut; 301. Mounting strip; 302. Second electric telescopic rod; 303. Push block; 304. Second spring; 305. Electrical testing electrode head; 401. Mounting block; 402. First electric telescopic rod; 403. First block; 404. First spring; 405. Second block. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figure 1-7As shown, the batch electrical testing fixture for lithium batteries includes several mounting components 2 and clamping devices 4 mounted on a base 1; the base 1 is also provided with several sets of electrical testing components 3, each clamping device 4 is located directly above the corresponding mounting component 2, and each set of electrical testing components 3 is located on the side of the mounting component 2. The several mounting components 2 and the several clamping devices 4 complete the batch clamping of lithium batteries to be tested, and the electrical testing components 3 are used to inspect the lithium batteries to be tested.

[0025] Compared to traditional lithium battery electrical testing fixtures, this utility model provides a batch electrical testing fixture for lithium batteries that can effectively solve the problems of low efficiency and inability to conduct batch testing.

[0026] In some embodiments, such as Figure 4 as well as Figure 5 As shown, the mounting assembly 2 includes a back plate 201 disposed on the side wall of the base 1. The bottom of the back plate 201 is connected to a base plate 202. A slide rail is provided on the base plate 202, and two clamping plates 203 are movably disposed inside the slide rail. The bottom ends of the base plate 202 are connected to rotating rods 204 by bearings. The two ends of the rotating rods 204 are provided with opposite threads. One end of the rotating rods 204 is connected to a handwheel 205. Nuts 206 are threaded onto the opposite threads at both ends of the rotating rods 204, and the two nuts 206 are fixedly connected to the bottom of the two clamping plates 203 respectively.

[0027] In some embodiments, such as Figure 3 As shown, it should be noted that the rotating rod 204 is rotated by the handwheel 205. Since the threads at both ends of the rotating rod 204 are opposite to each other, the two nuts 206 can move towards the center or spread out to both ends simultaneously while the rotating rod 204 is rotating, thus driving the two clamping plates 203 to move towards the center simultaneously to complete the lateral clamping of the lithium battery to be tested, or to spread out to both ends simultaneously to stop clamping the lithium battery.

[0028] It should be added that a drive motor can also be set on the base 1, and the drive motor drives the rotating rod 204 to rotate, so as to automatically clamp the lithium battery.

[0029] In some embodiments, the clamping device 4 includes a mounting block 401 disposed on the top of the back plate 201. The mounting block 401 is provided with a vertically downward first electric telescopic rod 402. The output end of the first electric telescopic rod 402 is provided with a first block 403. The lower surface of the first block 403 is provided with a first spring 404. The lower end of the first spring 404 is provided with a second block 405. The second block 405 is located directly above the bottom plate 202.

[0030] In actual use, when the lithium battery is clamped horizontally, the output end of the first electric telescopic rod 402 drives the first block 403 to move vertically downward, and then drives the second block 405 to further clamp the lithium battery from the vertical direction through the first spring 404.

[0031] In some embodiments, the electrical testing assembly 3 includes a mounting strip 301 disposed on a base 1, a second electric telescopic rod 302 disposed horizontally on the mounting strip 301, a push block 303 disposed at the output end of the second electric telescopic rod 302, two second springs 304 disposed on the side of the push block 303, and the ends of the two second springs 304 respectively disposed on the electrical testing electrode head 305; the two electrical testing electrode heads 305 are connected to a lithium battery testing device through wires.

[0032] It should be added that the two electrical testing electrode heads 305 are the positive electrode head and the negative electrode head, respectively, and the lithium battery testing device can be a multimeter to complete voltage detection, current detection and resistance detection.

[0033] like Figure 1-7 As shown, the working principle of this utility model is as follows: The electrical testing device is placed in a designated position, and then the lithium battery to be tested is placed between two clamping plates 203. By rotating the handwheel 205, the two nuts 206 move towards the center simultaneously, thereby driving the two clamping plates 203 to move towards the center simultaneously to complete the horizontal clamping of the lithium battery to be tested. After the lithium battery is horizontally clamped, the output end of the first electric telescopic rod 402 drives the first block 403 to move vertically downward, and then drives the second block 405 to further clamp the lithium battery from the vertical direction through the first spring 404. Finally, the output end of the second electric telescopic rod 302 drives the pushing block 303 forward, and the pushing block 303 drives the two electrical testing electrode heads 305 to contact the positive and negative terminals of the lithium battery respectively through the second spring 304. The two electrical testing electrode heads 305 are respectively connected to the testing equipment, which can detect the voltage of the lithium battery and can also be used to detect the continuous discharge performance of the lithium battery.

[0034] No manual operation is required after power-on, protecting the safety of operators. It is equipped with several sets of electrical testing components 3, which can test multiple lithium batteries at the same time, improving work efficiency. The clamping device is adjustable and suitable for lithium batteries of various specifications, making it highly practical. The clamping device 4 and the electrical testing components 3 are respectively equipped with a first spring 404 and a second spring 304, which can activate a buffering effect while performing their functions, protecting the lithium batteries being tested.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A batch electrical testing fixture for lithium batteries, characterized in that: It includes several mounting components (2) and clamping devices (4) set on a base (1); the base (1) is also provided with several sets of electrical testing components (3), each clamping device (4) is located directly above the corresponding mounting component (2), and each set of electrical testing components (3) is located on the side of the mounting component (2). Several mounting components (2) and several clamping devices (4) complete the batch clamping of lithium batteries to be tested, and the electrical testing components (3) are used to inspect the lithium batteries to be tested.

2. The batch electrical testing fixture for lithium batteries according to claim 1, characterized in that: The mounting assembly (2) includes a back plate (201) disposed on the side wall of the base (1), and a bottom plate (202) is connected to the bottom of the back plate (201). A slide rail is provided on the bottom plate (202), and two clamping plates (203) are movably disposed inside the slide rail.

3. The batch electrical testing fixture for lithium batteries according to claim 2, characterized in that: The bottom of the base plate (202) is connected to a rotating rod (204) at both ends by bearings. The rotating rod (204) has opposite threads at both ends. A handwheel (205) is connected to one end of the rotating rod (204). Nuts (206) are threaded onto the opposite threads at both ends of the rotating rod (204). The two nuts (206) are fixedly connected to the bottom of the two clamping plates (203) respectively.

4. The batch electrical testing fixture for lithium batteries according to claim 3, characterized in that: The clamping device (4) includes a mounting block (401) disposed on the top of the back plate (201). The mounting block (401) is provided with a vertically downward first electric telescopic rod (402). The output end of the first electric telescopic rod (402) is provided with a first block (403). The lower surface of the first block (403) is provided with a first spring (404). The lower end of the first spring (404) is provided with a second block (405). The second block (405) is located directly above the bottom plate (202).

5. The batch electrical testing fixture for lithium batteries according to claim 4, characterized in that: The electrical testing assembly (3) includes a mounting strip (301) disposed on the base (1). The mounting strip (301) is provided with a horizontal second electric telescopic rod (302). The output end of the second electric telescopic rod (302) is provided with a push block (303). The side of the push block (303) is provided with two second springs (304). The ends of the two second springs (304) are respectively disposed on the electrical testing electrode head (305).

6. The batch electrical testing fixture for lithium batteries according to claim 5, characterized in that: Two electrical testing electrode heads (305) are connected to a lithium battery testing device via wires.

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