Lithium battery detection connection structure
By designing the lithium battery detection connection structure, using the nesting and threaded connection of the butt columns and holes, the cumbersome problems of existing detection technology are solved, and the detection efficiency and connection quality are improved.
Patent Information
- Application Number
- CN202420745651.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The existing lithium battery detection technology is cumbersome, requiring external electrode welding, manual thermocouple attaching and manual tightening of screws, resulting in wasted time and low detection efficiency.
A lithium battery detection connection structure is designed, including the positive and negative electrode docking ears, and a butt plug is nested on the electrode ears. Butt columns and holes are installed on the plugs and ears to achieve tight threaded connections and improve connection efficiency.
This structure realizes the detection connection of lithium batteries, which improves the connection efficiency, reduces the contact resistance value, and simplifies the detection process.
Smart Images
Figure CN222601439U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery detection, in particular to a lithium battery detection connection structure. Background Art
[0002] Lithium-ion batteries have the advantages of high voltage, long charge and discharge life, low environmental pollution and low self-discharge efficiency.
[0003] For lithium-ion battery cells installed in electric vehicles, we need to conduct electrical performance testing on them. Currently, before testing single-cell batteries, it is necessary to weld external aluminum or copper tabs, tighten the external tabs and voltage and current lines with screws to ensure a tight connection; manually attach thermocouples to the battery surface to monitor and collect battery surface temperature data; and the test cabinet can perform the required electrical performance tests on the battery. However, the testing process is cumbersome, requiring external tab welding, manual thermocouple attachment, manual screw tightening, etc., which wastes time and has low testing efficiency. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a lithium battery detection connection structure.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A lithium battery detection connection structure comprises a positive electrode docking tab and a negative electrode docking tab installed on a battery cell, wherein a positive electrode docking plug is nested on the positive electrode docking tab, and a negative electrode docking plug is nested on the negative electrode docking tab. Both the positive electrode docking tab and the negative electrode docking tab are provided with docking posts, and both the positive electrode docking plug and the negative electrode docking plug are provided with docking holes, and the docking holes and the docking posts are nested with each other.
[0007] As a further solution of the utility model: the positive butt plug and the negative butt plug are both double-layer structures, and the inner layer structure is movably provided inside the positive butt plug and the negative butt plug, and the butt hole is opened on the inner layer structure.
[0008] As a further solution of the utility model: the positive electrode docking tab and the negative electrode docking tab are both of "J" type structure, and the inner layer structure is a cylindrical structure.
[0009] As a further solution of the utility model: the inner walls of the outer structures of the positive butt plug and the negative butt plug are both provided with thread one, and the circumferences of the positive butt tab and the negative butt tab are both provided with thread two, and the thread one and the thread two match each other.
[0010] As a further solution of the utility model: the number of docking posts on the positive docking tab is different from the number of docking posts on the negative docking tab, the number of docking holes in the positive docking plug matches the number of docking posts on the positive docking tab, and the number of docking holes in the negative docking plug matches the number of docking posts on the negative docking tab.
[0011] As a further solution of the utility model: both sides of the positive electrode docking tab and the negative electrode docking tab are provided with mounting wings of planar structure.
[0012] As a further solution of the utility model: the mounting wing is welded to the battery cell.
[0013] The beneficial effects of the utility model are as follows: the positive electrode docking plug and the negative electrode docking plug are respectively threadedly installed on the positive electrode docking ear and the negative electrode docking ear, and the connection is tight and seamless, so that the lithium battery detection connection is realized, the lithium battery connection efficiency can be improved, and the contact resistance value can be reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a connection diagram of a lithium battery detection connection structure proposed by the utility model;
[0015] Figure 2 This is a schematic diagram of the positive electrode docking plug, the negative electrode docking plug, the docking hole, and the inner layer structure of a lithium battery detection connection structure proposed by the utility model;
[0016] Figure 3 A schematic diagram of a top view of a positive electrode docking tab, a negative electrode docking tab, a docking column and a mounting side wing of a lithium battery detection connection structure proposed by the utility model;
[0017] Figure 4 The utility model provides a schematic diagram of the three-dimensional structure of a positive electrode docking tab, a negative electrode docking tab, a docking column and a mounting wing of a lithium battery detection connection structure.
[0018] In the figure: 1-1 positive electrode docking plug, 1-2 negative electrode docking plug, 1-3 docking hole, 1-4 inner layer structure, 2-1 positive electrode docking ear, 2-2 negative electrode docking ear, 2-3 docking column, 2-4 installation side wing, 3-battery cell. DETAILED DESCRIPTION
[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0021] Reference Figure 1-4 A lithium battery detection connection structure comprises a positive electrode docking tab 2-1 and a negative electrode docking tab 2-2 installed on a battery cell 3, wherein a positive electrode docking plug 1-1 is nested on the positive electrode docking tab 2-1, and a negative electrode docking plug 1-2 is nested on the negative electrode docking tab 2-2, and docking posts 2-3 are arranged on both the positive electrode docking tab 2-1 and the negative electrode docking tab 2-2, and docking holes 1-3 are arranged on both the positive electrode docking plug 1-1 and the negative electrode docking plug 1-2, and the docking holes 1-3 and the docking posts 2-3 are nested with each other.
[0022] As a preferred embodiment of the present invention, the positive butt plug 1-1 and the negative butt plug 1-2 are both double-layer structures, and the inner layer structure 1-4 is movably provided inside the positive butt plug 1-1 and the negative butt plug 1-2, and the butt hole 1-3 is opened on the inner layer structure 1-4.
[0023] As a preferred embodiment of the utility model, the positive electrode docking tab 2-1 and the negative electrode docking tab 2-2 are both "J"-shaped structures, and the inner layer structure 1-4 is a cylindrical structure.
[0024] As a preferred embodiment of the utility model, the inner walls of the outer structures of the positive butt plug 1-1 and the negative butt plug 1-2 are both provided with thread 1, and the circumferences of the positive butt tab 2-1 and the negative butt tab 2-2 are both provided with thread 2, and the thread 1 and the thread 2 match each other.
[0025] As a preferred embodiment of the utility model, the number of docking posts 2-3 on the positive docking tab 2-1 is different from the number of docking posts 2-3 on the negative docking tab 2-2, the number of docking holes 1-3 in the positive docking plug 1-1 matches the number of docking posts 2-3 on the positive docking tab 2-1, and the number of docking holes 1-3 in the negative docking plug 1-2 matches the number of docking posts 2-3 on the negative docking tab 2-2.
[0026] As a preferred embodiment of the present invention, both sides of the positive electrode butt joint tab 2-1 and the negative electrode butt joint tab 2-2 are provided with mounting side wings 2-4 of a planar structure.
[0027] As a preferred embodiment of the present utility model, the mounting wing 2 - 4 is connected to the battery cell 3 by welding.
[0028] As a preferred embodiment of the present invention, the size of the top platform of the positive electrode docking tab 2-1 and the negative electrode docking tab 2-2 is consistent with the size of the platform at one end of the inner layer structure 1-4.
[0029] As a preferred embodiment of the present invention, the cylindrical platforms of the positive electrode docking tab 2-1 and the negative electrode docking tab 2-2 may be hollow structures.
[0030] When in use, the positive docking plug 1-1 is moved to the top of the positive docking pole ear 2-1. During the process of inserting the docking column 2-3 into the docking hole 1-3, the positive docking plug 1-1 is rotated so that the positive docking plug 1-1 is threadedly installed on the outside of the positive docking pole ear 2-1; the negative docking plug 1-2 is moved to the top of the negative docking pole ear 2-2. During the process of inserting the docking column 2-3 into the docking hole 1-3, the negative docking plug 1-2 is rotated so that the negative docking plug 1-2 is threadedly installed on the outside of the negative docking pole ear 2-2, thereby realizing the lithium battery detection connection, which can improve the lithium battery connection efficiency and reduce the contact resistance to a certain extent.
[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A lithium battery detection connection structure, characterized in that: The invention comprises a positive electrode docking tab (2-1) and a negative electrode docking tab (2-2) mounted on a battery cell (3); a positive electrode docking plug (1-1) is nested on the positive electrode docking tab (2-1); a negative electrode docking plug (1-2) is nested on the negative electrode docking tab (2-2); docking posts (2-3) are arranged on the positive electrode docking tab (2-1) and the negative electrode docking tab (2-2); docking holes (1-3) are arranged on the positive electrode docking plug (1-1) and the negative electrode docking plug (1-2); and the docking holes (1-3) and the docking posts (2-3) are nested with each other.
2. A lithium battery detection connection structure according to claim 1, characterized in that: The positive butt plug (1-1) and the negative butt plug (1-2) are both double-layer structures, and an inner layer structure (1-4) is movably provided inside the positive butt plug (1-1) and the negative butt plug (1-2), and the butt hole (1-3) is provided on the inner layer structure (1-4).
3. A lithium battery detection connection structure according to claim 2, characterized in that: The positive electrode docking tab (2-1) and the negative electrode docking tab (2-2) are both of "J" type structure, and the inner layer structure (1-4) is of cylindrical structure.
4. A lithium battery detection connection structure according to claim 3, characterized in that: The inner walls of the outer structures of the positive electrode docking plug (1-1) and the negative electrode docking plug (1-2) are both provided with a first thread, and the circumferences of the positive electrode docking tab (2-1) and the negative electrode docking tab (2-2) are both provided with a second thread, and the first thread and the second thread match each other.
5. A lithium battery detection connection structure according to claim 4, characterized in that: The number of docking posts (2-3) on the positive electrode docking tab (2-1) is different from the number of docking posts (2-3) on the negative electrode docking tab (2-2); the number of docking holes (1-3) in the positive electrode docking plug (1-1) matches the number of docking posts (2-3) on the positive electrode docking tab (2-1); and the number of docking holes (1-3) in the negative electrode docking plug (1-2) matches the number of docking posts (2-3) on the negative electrode docking tab (2-2).
6. A lithium battery detection connection structure according to claim 1, characterized in that: Both sides of the positive electrode butt joint tab (2-1) and the negative electrode butt joint tab (2-2) are provided with mounting side wings (2-4) of a planar structure.
7. A lithium battery detection connection structure according to claim 6, characterized in that: The mounting wing (2-4) is connected to the battery cell (3) by welding.