Lithium battery electrode connection structure convenient to mount and dismount

Abstract

The utility model discloses a lithium battery electrode connecting structure convenient to install and dismount, including lithium battery, be provided with two electrode terminal on the lithium battery, be provided with the connecting port on the electrode terminal, the quick -witted device is provided with above electrode hole terminal, the quick -witted device includes the casing, the plug -in spare and elastic component, the elastic component includes reset spring and the compression sheet, the compression sheet is placed on the compression sheet part, the fixed cavity is provided with in the compression sheet middle, the fixed cavity covers fixed department, the upper of compression sheet is provided with the holding part, reset spring sets up between the compression sheet and the casing, when installing, the holding part is pulled up to make the plug -in head leave the connecting port, when this, from the socket part inserts the wiring terminal, loosens the holding part, and the compression department presses the cable terminal, when needing to dismount, the holding part is pulled up to make the plug -in head leave the connecting port, then can just outwardly pull out the cable terminal, and installation does not need extra tool, is very convenient, and the dismounting efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically to a connection structure for electrically connecting lithium battery electrodes (positive or negative) to external circuits or other battery cells. Background Technology

[0002] Lithium batteries are widely used in electric vehicles, energy storage systems, portable electronic devices and other fields due to their advantages such as high energy density and long cycle life.

[0003] Traditional lithium battery electrode connections primarily employ welding or bolting. While welding provides a relatively stable connection, once welded, the connection between the electrodes is difficult to disassemble. If a single cell in the battery pack malfunctions and needs replacement, or if maintenance or repair of the entire battery pack is required, significant difficulties arise, potentially leading to the scrapping of the entire battery pack, resulting in resource waste and increased costs. Bolting uses bolts to secure external conductors (such as copper busbars or cable terminals) to the battery electrode posts. This method offers reliable connections, but installation and disassembly require tools (wrenches), making the process cumbersome and time-consuming. It is particularly inefficient in situations requiring frequent battery replacement or maintenance, and there is a risk of bolt loosening or stripping. Furthermore, since bolts are separate components, loss after disassembly hinders subsequent installation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lithium battery electrode connection structure that is easy to install and disassemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lithium battery electrode connection structure that is easy to install and disassemble, comprising a lithium battery, wherein the lithium battery is provided with two electrode terminals, the electrode terminals are provided with connection ports, a quick-connect device is provided above the electrode terminals, the quick-connect device includes a housing, a connector, and an elastic component, a socket is provided on one side of the housing, the connector and the elastic component are installed on the housing, the connector includes a plug, a pressure plate, and a fixing part, the plug is inserted into the connection port, the plug is located below the pressure plate, the fixing part is located above the pressure plate, the elastic component includes a return spring and a clamping plate, the clamping plate is placed on the pressure plate, the clamping plate has a fixing cavity in the middle, the fixing cavity covers the fixing part, a gripping part is provided above the clamping plate, and the return spring is disposed between the clamping plate and the housing.

[0006] Furthermore, the housing has a number of positioning posts arranged from top to bottom inside, and the clamping plate has a number of positioning openings equal to the number of positioning posts above it. A positioning cylinder is arranged above the positioning opening, and the positioning posts are placed into the positioning cylinder.

[0007] Furthermore, the reset spring is sleeved on the positioning cylinder and the positioning post.

[0008] Furthermore, the top of the housing extends upward to form a mounting cylinder, the top of the mounting cylinder is open, and the gripping part passes through the mounting cylinder.

[0009] Furthermore, the socket portion is used to insert a cable terminal, which is located between the pressure plate portion and the electrode terminal, and an arc-shaped limiting portion is provided on the inner wall of the housing opposite the socket portion.

[0010] Furthermore, a guide portion is provided inside the housing near the socket, and guide plates are provided on both sides of the guide portion, with the guide plates bending towards the socket near the socket.

[0011] Preferably, the housing is made of a transparent material.

[0012] The advantages of this utility model are as follows: when it is necessary to install the cable terminal, lift the gripping part and pull the plug out from the connection port. After inserting the cable terminal into the housing, release the gripping part. Under the action of the elastic component, the pressure plate part tightly presses the cable terminal. When it is necessary to remove the cable terminal, lift the gripping part upward to pull out the cable terminal. No additional tools are needed for disassembly and assembly, which is more convenient and efficient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the quick-assembly device.

[0015] Figure 3 This is a schematic diagram of the internal structure of the shell.

[0016] Figure 4 This is a schematic diagram of the connector.

[0017] In the diagram: 1. Battery; 11. Electrode terminal; 2. Housing; 21. Positioning post; 22. Mounting cylinder; 23. Plug interface; 24. Limiting part; 25. Guide part; 26. Guide plate; 3. Plug connector; 31. Plug connector; 32. Pressing part; 33. Fixing part; 41. Pressing plate; 42. Gripping part; 5. Cable terminal; 6. Return spring. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Example: A lithium battery electrode connection structure for easy installation and disassembly includes a lithium battery 1. The lithium battery 1 has two electrode terminals 11 with connection ports. A quick-connect device is located above the electrode terminals 11. The quick-connect device includes a housing 2, a connector 3, and an elastic component. A socket 23 is located on one side of the housing 2. The connector 3 and the elastic component are mounted on the housing 2. The connector 3 includes a plug 31, a pressing portion 32, and a fixing portion 33. The plug 31 is inserted into the connection port and is located below the pressing portion 32. The fixing portion 33 is located above the pressing portion 32. The elastic component includes a return spring 6 and a clamping plate 41. In this embodiment, the clamping plate 41 and the housing 2 are made of insulating material. The clamping plate and the gripping portion can be made of plastic and are joined by snap-fit ​​mechanisms. The housing 2 is made of transparent plastic to facilitate observation when the gripping portion 42 is lifted. The clamping plate 41 is placed on the clamping part 32 at the position of the cable terminal 5. The clamping plate 41 has a fixing cavity in the middle, which covers the fixing part 33. The clamping plate 41 has a gripping part 42 above it. The return spring 6 is located between the clamping plate 41 and the housing 2. The return spring 6 pushes the clamping plate 41 downward. During installation, the gripping part 42 is pulled upward to further compress the return spring 6. The clamping plate 41 drives the plug 3 to move upward, thereby causing the plug 31 to leave the connection port. At this time, the terminal 5 is inserted from the socket part 23, so that the hole in the middle of the cable terminal 5 is below the plug 31. The gripping part 42 is released, and the clamping part 3 is reinserted into the connection port under the action of the return spring 6. The clamping part 32 presses the cable terminal 5. When disassembly is required, the gripping part 42 is pulled upward to make the plug 31 leave the connection port. Then the cable terminal 5 can be pulled out. No additional tools are required for disassembly and assembly, which is very convenient and efficient.

[0020] Furthermore, four positioning posts 21 are arranged from top to bottom inside the housing 2. The same number of positioning openings 44 as the positioning posts are arranged above the clamping plate 41. A positioning cylinder 45 is arranged above the positioning opening 44. The positioning posts 21 are placed into the positioning cylinder 45. Through the cooperation between the positioning cylinder 45 and the positioning posts 21, the connector 3 can move vertically in a straight line.

[0021] Furthermore, the reset spring 6 is sleeved on the positioning cylinder 45 and the positioning post 21, and the reset spring 6 is in a contracted state to press the plug-in 3.

[0022] Furthermore, the top of the housing 2 extends upward to form a mounting cylinder 22 with an opening at the top. The gripping part 42 passes through the mounting cylinder 22 and is located outside the housing, making it easy for the user to grip the gripping part 42. In addition, the mounting cylinder 22 can also limit the gripping part 42, making the longitudinal movement of the connector 3 more stable and straight.

[0023] Furthermore, the socket 23 is used to insert the cable terminal 5, which is located between the pressure plate 32 and the electrode terminal 1. An arc-shaped limiting part 24 is provided on the inner wall of the housing opposite the socket 23. The arc surface of the limiting part 24 matches the cable terminal 5, so that after the cable terminal 5 is inserted into the housing 2, the hole in the middle is located below the connector 31. The cable terminal 5 is in the shape of a traditional cable terminal. In order to ensure that the arc surface of the limiting part 24 matches the cable terminal 5, this product can be sold together with the cable terminal.

[0024] Furthermore, a guide portion 25 is provided inside the housing 2 near the socket portion 23, and guide plates 26 are provided on both sides of the guide portion 25. The guide plates 26 are bent towards the socket portion near the socket portion 23 to facilitate the insertion of the cable terminal 5 from the socket portion 25. The guide plates are used to guide the cable terminal 5 to move towards the limiting portion 24.

[0025] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A lithium battery electrode connection structure that is easy to install and disassemble, comprising a lithium battery, wherein the lithium battery has two electrode terminals, and the electrode terminals are provided with connection ports, characterized in that... A quick-connect device is provided above the electrode terminal. The quick-connect device includes a housing, a connector, and an elastic component. A socket is provided on one side of the housing. The connector and the elastic component are mounted on the housing. The connector includes a plug, a pressure plate, and a fixing part. The plug is inserted into the connection port. The plug is located below the pressure plate. The fixing part is located above the pressure plate. The elastic component includes a return spring and a clamping plate. The clamping plate is placed on the pressure plate. A fixing cavity is provided in the middle of the clamping plate. The fixing cavity covers the fixing part. A gripping part is provided above the clamping plate. The return spring is located between the clamping plate and the housing.

2. The lithium battery electrode connection structure for easy installation and disassembly according to claim 1, characterized in that... The housing has a number of positioning pins arranged from top to bottom inside. The clamping plate has a number of positioning openings equal to the number of positioning pins above it. A positioning cylinder is arranged above the positioning openings, and the positioning pins are placed into the positioning cylinders.

3. The lithium battery electrode connection structure for easy installation and disassembly according to claim 2, characterized in that... The reset spring is sleeved on the positioning cylinder and the positioning post.

4. The lithium battery electrode connection structure for easy installation and disassembly according to claim 1, characterized in that... The top of the housing extends upward to form a mounting cylinder, the top of the mounting cylinder is open, and the gripping part passes through the mounting cylinder.

5. The lithium battery electrode connection structure for easy installation and disassembly according to claim 1, characterized in that... The socket is used to insert a cable terminal, which is located between the pressure plate and the electrode terminal. An arc-shaped limiting part is provided on the inner wall of the housing opposite the socket.

6. The lithium battery electrode connection structure for easy installation and disassembly according to claim 5, characterized in that... A guide portion is provided inside the housing near the socket, and guide plates are provided on both sides of the guide portion. The guide plates are bent towards the socket near the socket.

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