Short circuit detection device of lithium ion battery
By designing a lithium-ion battery short-circuit detection device containing multiple mechanical components, the problems of cumbersome operation and poor applicability of existing equipment are solved, and rapid and intuitive detection of batteries of different shapes and sizes are achieved.
Patent Information
- Application Number
- CN202421623374.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing lithium-ion battery short-circuit detection equipment is cumbersome to operate and cannot adapt to lithium-ion batteries of different shapes and sizes, resulting in low detection efficiency and poor applicability.
A short circuit detection device including a base, an anti-slip pad, a long groove, a guide rod, a moving block, a vertical plate, a threaded rod, a slider and a connecting member is designed. The spring provides elastic force, allowing the moving block and vertical plate to move contact the battery, and adapting to different size batteries is achieved using threaded rods and sliders.
It realizes fast and intuitive detection of lithium-ion batteries, is simple to operate, can adapt to batteries of different shapes and sizes, and improves detection efficiency and applicability.
Smart Images
Figure CN222926763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium-ion battery detection, and particularly relates to a short-circuit detection device for lithium-ion batteries. Background Art
[0002] Lithium-ion battery: It is a secondary battery (rechargeable battery), which mainly works by the movement of lithium ions between the positive and negative electrodes. During the charge and discharge process, Li+ is embedded and de-embedded back and forth between the two electrodes: during charging, Li+ de-embeds from the positive electrode, passes through the electrolyte and embeds into the negative electrode, and the negative electrode is in a lithium-rich state; during discharging, the opposite is true.
[0003] When some existing lithium-ion batteries are subjected to contact tests, most of them are placed on a detection table and then contacted with electrodes or other detection devices to reflect the short-circuit phenomenon of the lithium-ion battery. However, the operation of some detection devices is relatively cumbersome, and there are various types of lithium-ion batteries, including cylindrical batteries and square batteries, etc. Therefore, the heights of the positive and negative electrodes are different, and when some lithium-ion batteries are being detected, the height of the detection device cannot be adjusted accordingly at the same time. Therefore, there are certain limitations. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problems existing in the prior art: when some existing lithium-ion batteries are subjected to contact tests, most of them are placed on a detection table and then contacted with electrodes or other detection devices to reflect the short-circuit phenomenon of the lithium-ion battery. However, the operation of some detection devices is relatively cumbersome, and there are various types of lithium-ion batteries, including cylindrical batteries and square batteries, etc. Therefore, the heights of the positive and negative electrodes are different, and when some lithium-ion batteries are being detected, the height of the detection device cannot be adjusted accordingly at the same time.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A short-circuit detection device for lithium-ion batteries, comprising: a base; a plurality of anti-slip pads, all fixedly installed at the four corners of the surface of the base; and further comprising:
[0006] A long groove is opened on the surface of the base near the center, and a guide rod is fixedly installed on the inner wall of the long groove;
[0007] Two moving blocks are movably sleeved at the symmetrical positions on the surface of the guide rod, and the outer surfaces of the two moving blocks are slidably embedded in the interior of the long groove;
[0008] A load-bearing pad is fixedly installed on the surface of the base near the center, and a plurality of anti-slip grooves are opened on the surface of the load-bearing pad.
[0009] Preferably, springs are fixedly installed on the inner walls of the opposite sides of the long groove, and the surfaces of the two springs far away from the long groove are fixedly connected to the surfaces of the moving blocks.
[0010] The technical effect of adopting the above further solution is that by connecting the two ends of the spring to the surfaces of the long groove and the moving block respectively, it is convenient to provide elastic force to the moving block, so that the vertical plate on the surface moves, and thus contacts the lithium-ion battery.
[0011] Preferably, a vertical plate is fixedly installed on one side surface of the two moving blocks, and notch openings are provided on the surfaces of the two vertical plates opposite to each other.
[0012] The technical effect of adopting the above further solution is that when the moving block moves, it drives the vertical plate on the surface to move. At the same time, the notch openings on the surface of the vertical plate facilitate the positioning work of the internal parts.
[0013] Preferably, threaded rods are movably embedded in the two notch openings, and sliders are sleeved on the outer surfaces of the two threaded rods in a threaded manner.
[0014] The technical effect of adopting the above further solution is that the internal threaded rods are positioned through the notch openings. When the threaded rods rotate, the sliders on the outer surfaces are driven to move up and down.
[0015] Preferably, the outer surfaces of the two sliders are slidably embedded in the notch openings, and mounting plates are fixedly installed on the surfaces of the two sliders.
[0016] The technical effect of adopting the above further solution is that when the sliders move, they are movably embedded in the notch openings, preventing tilting during movement. At the same time, the sliders drive the mounting plates on the surfaces to move.
[0017] Preferably, connecting pieces are installed on the surfaces of the two mounting plates through bolts, and a U-shaped frame is fixedly installed on the surface of the base.
[0018] The technical effect of adopting the above further solution is that the connecting pieces are fixed by the mounting plates, and at the same time, the U-shaped frame on the surface is fixed by the base.
[0019] Preferably, a connecting piece is fixedly installed on the surface of the U-shaped frame away from the base, and a light bulb is threadedly embedded in the connecting piece.
[0020] The technical effect of adopting the above further solution is that the connecting piece on the surface is fixed by the U-shaped frame, and at the same time, the light bulb inside the connecting piece can be disassembled.
[0021] Preferably, connecting lines are fixedly installed on the opposite surfaces of the connecting piece, and one ends of the two connecting lines are connected to the surface of the connecting piece.
[0022] The technical effect of adopting the above further solution is that by connecting the two ends of the connecting lines to the surfaces of the connecting piece and the connecting piece, it is convenient for power supply.
[0023] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:
[0024] 1. In the present utility model, during use, the anti-slip mat on the surface of the base provides an anti-slip effect. When the lithium-ion battery is placed on the surface of the load-bearing pad, the anti-slip grooves on the surface provide an anti-slip effect on the lithium-ion battery, preventing the position from shifting during detection, thus affecting the measurement. When the vertical plate is pushed, the surface moving block moves inside the long groove. At the same time, the guide rod is embedded inside the moving block to limit the moving block. The two ends of the spring are connected to the surface of the long groove and the moving block, providing an elastic force to the moving block, so that the connecting piece on the surface of the vertical plate contacts the positive and negative electrodes of the lithium-ion battery. The two ends of the connecting wire are connected to the surface of the connecting piece and the connecting part, supplying power to the bulb inside the connecting part. When the lithium-ion battery functions normally, the bulb lights up, facilitating the quick and intuitive completion of the detection work of the lithium-ion battery, and the operation is simple at the same time.
[0025] 2. In the present utility model, when it is necessary to test lithium-ion batteries with different shapes and sizes, by rotating the threaded rod inside the rotating notch, the slider on the outer wall slides inside the notch, preventing tilting during movement. At the same time, the slider fixes the mounting plate on the surface. The connecting piece is conveniently installed on the surface of the mounting plate through bolts, thereby driving the connecting piece to move up and down, facilitating contact with the positive and negative electrodes of lithium-ion batteries of different sizes for measurement work, and improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is a schematic structural diagram of a short-circuit detection device for a lithium-ion battery proposed by the present utility model;
[0027] Figure 2 is a schematic side view structural diagram of a short-circuit detection device for a lithium-ion battery proposed by the present utility model;
[0028] Figure 3 is a short-circuit detection device for a lithium-ion battery proposed by the present utility model Figure 1 the enlarged structural diagram at A in;
[0029] Figure 4 is a short-circuit detection device for a lithium-ion battery proposed by the present utility model Figure 2 the enlarged structural diagram at B in.
[0030] Legend Explanation:
[0031] 1. Base; 101. Anti-slip pad; 102. Long groove; 103. Guide rod; 104. Spring; 105. Moving block; 106. Vertical plate; 1061. Notch; 1062. Threaded rod; 1063. Slide block; 1064. Mounting plate; 1065. Connecting piece; 107. Load-bearing pad; 1071. Anti-slip groove; 2. U-shaped frame; 201. Connecting piece; 202. Bulb; 203. Connecting wire. Detailed implementation mode
[0032] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0033] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.
[0034] Embodiment 1, as Figures 1-4 shown, the present invention provides a short-circuit detection device for a lithium-ion battery, including: a base 1; a plurality of anti-slip pads 101, all fixedly installed at the four corners of the surface of the base 1; further including: a long groove 102, opened on the surface of the base 1 near the center, and a guide rod 103 is fixedly installed on the inner wall of the long groove 102; two moving blocks 105, movably sleeved on the symmetrical parts of the surface of the guide rod 103, and the outer surfaces of the two moving blocks 105 are slidably embedded in the interior of the long groove 102; a load-bearing pad 107, fixedly installed on the surface of the base 1 near the center, and a plurality of anti-slip grooves 1071 are opened on the surface of the load-bearing pad 107.
[0035] In this embodiment, when in use, the anti-slip pads 101 on the surface of the base 1 provide anti-slip effect. When the lithium-ion battery is placed on the surface of the load-bearing pad 107, the anti-slip grooves 1071 on the surface provide anti-slip effect on the lithium-ion battery, preventing the position from moving during detection, thus affecting the measurement. When the vertical plate 106 is pushed, the moving block 105 on the surface moves inside the long groove 102. At the same time, the guide rod 103 is embedded in the moving block 105 to limit the moving block 105. The two ends of the spring 104 are connected to the surface of the long groove 102 and the moving block 105, providing elastic force to the moving block 105, so that the connecting piece 1065 on the surface of the vertical plate 106 contacts the positive and negative electrodes of the lithium-ion battery. The two ends of the connecting wire 203 are connected to the surface of the connecting piece 1065 and the connecting piece 201 to supply power to the bulb 202 inside the connecting piece 201. When the lithium-ion battery functions normally, the bulb 202 lights up, facilitating the quick and intuitive completion of the detection work of the lithium-ion battery, and the operation is simple at the same time.
[0036] Embodiment 2. Springs 104 are fixedly installed on the inner walls opposite to the long grooves 102. The surfaces of the two springs 104 away from the long grooves 102 are fixedly connected to the surface of the moving blocks 105. Vertical plates 106 are fixedly installed on one side surfaces of the two moving blocks 105. Notches 1061 are formed on the opposite surfaces of the two vertical plates 106. Threaded rods 1062 are movably embedded in the two notches 1061. Slide blocks 1063 are sleeved on the outer surfaces of the two threaded rods 1062. The outer surfaces of the two slide blocks 1063 are slidably embedded in the notches 1061. Mounting plates 1064 are fixedly installed on the surfaces of the two slide blocks 1063. Connection pieces 1065 are installed on the surfaces of the two mounting plates 1064 by bolts. A U-shaped frame 2 is fixedly installed on the surface of the base 1. A connecting piece 201 is fixedly installed on the surface of the U-shaped frame 2 away from the base 1. A light bulb 202 is threadedly embedded in the connecting piece 201. Connecting wires 203 are fixedly installed on the opposite surfaces of the connecting piece 201. One ends of the two connecting wires 203 are connected to the surface of the connection piece 1065.
[0037] In this embodiment, when it is necessary to test lithium-ion batteries with different shapes and sizes, when rotating the threaded rods 1062 inside the notches 1061, the slide blocks 1063 on the outer walls are driven to slide inside the notches 1061 to prevent tilting during movement. At the same time, the slide blocks 1063 fix the mounting plates 1064 on the surfaces. It is convenient to install the connection piece 1065 on the surface of the mounting plate 1064 through bolts, thereby driving the connection piece 1065 to move up and down, facilitating contact with the positive and negative electrodes of lithium-ion batteries of different sizes for measurement work, and improving the applicability of the device.
[0038] Working principle: When in use, the anti-slip mat 101 on the surface of the base 1 provides anti-slip effect. When the lithium-ion battery is placed on the surface of the load-bearing pad 107, the anti-slip grooves 1071 on the surface provide anti-slip effect for the lithium-ion battery, preventing the position from moving during detection, thus affecting the measurement. When the vertical plate 106 is pushed, the surface moving block 105 moves inside the long groove 102. At the same time, the guide rod 103 is embedded inside the moving block 105 to limit the moving block 105. The two ends of the spring 104 are connected to the surfaces of the long groove 102 and the moving block 105, providing elastic force for the moving block 105, so that the connecting piece 1065 on the surface of the vertical plate 106 contacts the positive and negative electrodes of the lithium-ion battery. The two ends of the connecting wire 203 are connected to the surfaces of the connecting piece 1065 and the connector 201 to supply power to the bulb 202 inside the connector 201. When the lithium-ion battery functions normally, the bulb 202 lights up, facilitating the quick and intuitive completion of the detection work of the lithium-ion battery. At the same time, the operation is simple. In addition, when it is necessary to test lithium-ion batteries with different shapes and sizes, when the threaded rod 1062 inside the rotating notch 1061 is rotated, the outer wall slider 1063 slides inside the notch 1061, preventing tilting during movement. At the same time, the slider 1063 fixes the surface mounting plate 1064. The connecting piece 1065 is conveniently installed on the surface of the mounting plate 1064 through bolts, thus driving the connecting piece 1065 to move up and down, facilitating contact with the positive and negative electrodes of lithium-ion batteries of different sizes for measurement work, and improving the applicability of the device.
[0039] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. A short circuit detection device for a lithium ion battery, comprising: Base (1); A plurality of anti-slip pads (101) are fixedly mounted at the four corners of the surface of the base (1); characterized in that they also include: A long groove (102) is formed on the surface of the base (1) near the center, and a guide rod (103) is fixedly mounted on the inner wall of the long groove (102); Two moving blocks (105) are movably sleeved at symmetrical positions on the surface of the guide rod (103), and the outer surfaces of the two moving blocks (105) are slidably embedded in the interior of the long groove (102); The load-bearing pad (107) is fixedly mounted on the surface of the base (1) near the center, and a plurality of anti-slip grooves (1071) are provided on the surface of the load-bearing pad (107).
2. A short circuit detection device for a lithium ion battery according to claim 1, characterized in that: Springs (104) are fixedly mounted on the inner walls at opposite locations of the long slot (102), and the surfaces of the ends of the two springs (104) away from the long slot (102) are fixedly connected to the surface of the moving block (105).
3. A short circuit detection device for a lithium ion battery according to claim 2, characterized in that: A vertical plate (106) is fixedly mounted on one side surface of the two moving blocks (105), and a notch (1061) is provided on the surfaces of the two vertical plates (106) at opposite locations.
4. A short circuit detection device for a lithium ion battery according to claim 3, characterized in that: A threaded rod (1062) is movably embedded inside the two notches (1061), and a sliding block (1063) is threadedly sleeved on the outer surface of the two threaded rods (1062).
5. A short circuit detection device for a lithium ion battery according to claim 4, characterized in that: The outer surfaces of the two sliding blocks (1063) are slidably embedded in the interior of the notch (1061), and mounting plates (1064) are fixedly mounted on the surfaces of the two sliding blocks (1063).
6. A short circuit detection device for a lithium ion battery according to claim 5, characterized in that: The surfaces of the two mounting plates (1064) are mounted with connecting plates (1065) via bolts, and the surface of the base (1) is fixedly mounted with a U-shaped frame (2).
7. A short circuit detection device for a lithium ion battery according to claim 6, characterized in that: A connecting piece (201) is fixedly mounted on a surface of the U-shaped frame (2) away from the base (1), and a light bulb (202) is embedded in the internal thread of the connecting piece (201).
8. A short circuit detection device for a lithium ion battery according to claim 7, characterized in that: Connecting wires (203) are fixedly mounted on the surfaces opposite to the connecting members (201), and one end of the two connecting wires (203) is connected to the surface of the connecting sheet (1065).