Novel battery pack tab capable of preventing desoldering

Abstract

The utility model discloses a novel battery pack tab capable of preventing desoldering, which comprises a tab body, welding spot holes are uniformly and equidistantly formed in the X-axis direction of the tab body, the tab body is connected with battery poles through the welding spot holes, a movable structure is arranged between every two welding spot holes, the movable structure comprises movable holes uniformly and equidistantly formed in the Y-axis direction, and the movable holes are uniformly and equidistantly formed in the Y-axis direction. A movable bridge is formed between every two adjacent movable holes. The welding spot holes are uniformly formed in the X-axis direction of the tab body at equal intervals, and the movable structures are arranged between every two welding spot holes, so that when the tab is heated to expand, the movable bridges can be bent and folded to adapt to expansion, the tab is prevented from falling off from the battery, and stable connection between the battery and an external circuit is guaranteed.

Description

Technical Field

[0001] The utility model relates to a battery pack tab, in particular to a novel battery pack tab capable of preventing desoldering. Background Art

[0002] In the field of battery technology, battery tabs are crucial components that connect the battery's internal and external circuits. Traditional battery tabs present several issues during use. Heat generated during battery operation causes the tabs to heat up and expand, often loosening or even causing the connection between the tab and the battery terminal to fall off, impacting battery operation and lifespan. Furthermore, traditional tabs are typically simple in design, lacking effective structures to mitigate thermal expansion, and employing suboptimal materials, resulting in high costs. Utility Model Content

[0003] In order to solve the above problems, the following technical solutions are proposed:

[0004] A new type of battery pack tab with weld release includes a tab body. The tab body is provided with welding holes evenly and equidistantly arranged in the X-axis direction. The tab body is connected to the battery pole through the welding holes. An active structure is provided between every two welding holes. The active structure includes active holes evenly and equidistantly arranged in the Y-direction. A movable bridge is formed between adjacent active holes.

[0005] Furthermore, the movable bridge is an arc-shaped structure with one side concave inward and the other side convex outward.

[0006] Furthermore, the end connectors provided at both ends of the tab body in the X-axis direction are arc-shaped synapse structures, and the welding holes provided at both ends of the tab body are provided at the junction of the end connectors and the tab body.

[0007] Furthermore, the terminal connector and the tab body are an integrated metal structure.

[0008] The beneficial effects of the utility model are as follows:

[0009] By evenly and equidistantly opening solder holes in the X-axis direction of the tab body and setting a movable structure between every two solder holes, when the tab heats up and expands, the movable bridge can bend and fold to adapt to the expansion, preventing the tab from falling off the battery and ensuring a stable connection between the battery and the external circuit.

[0010] The movable bridge adopts an arc-shaped structure with one side concave inward and the other side convex outward. While ensuring the contact area between the tab and the battery, it reduces the use of materials and lowers production costs.

[0011] End connectors are provided at both ends of the tab body in the X-axis direction, and the end connectors are arc-shaped synapse structures, which can better connect with the battery poles and improve the stability of the connection.

[0012] The terminal connector and the tab body are an integrated metal structure, which reduces the resistance of the connection part, improves the current transmission efficiency, and also enhances the overall strength and durability of the tab. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] The description of the accompanying figures is as follows: 1. Tab body; 2. End connector; 31. Movable hole; 32. Movable bridge; 4. Welding point hole. DETAILED DESCRIPTION

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] A new type of battery pack tab with solder release, comprising a tab body 1. The tab body 1 is provided with welding holes 4 evenly and equidistantly arranged in the X-axis direction, and is connected to the battery pole through the welding holes 4. A movable structure is provided between every two welding holes 4, and the movable structure includes movable holes 31 evenly and equidistantly arranged in the Y-direction, and a movable bridge 32 is formed between adjacent movable holes 31. The movable bridge 32 is an arc-shaped structure with one side concave inward and the other side convex outward. End connectors 2 are provided at both ends of the tab body 1 in the X-axis direction. The end connectors 2 are arc-shaped synaptic structures. The welding holes 4 provided at both ends of the tab body 1 are provided at the junction of the end connector 2 and the tab body 1. The end connector 2 and the tab body 1 are an integrated metal structure.

[0019] The working principle of this utility model is as follows:

[0020] During normal battery operation, current flows through the solder holes 4 in the tab body 1, connecting to the battery terminals and establishing electrical continuity between the battery's internal and external circuits. When the battery generates heat, the tab expands, and the movable structure between each pair of solder holes 4 comes into play. The movable bridge 32 between the movable holes 31, due to its curved structure, can bend and fold to one side. This bending and folding action effectively absorbs tab expansion, preventing the tab from detaching from the battery due to stress caused by expansion.

[0021] At both ends of the tabs, the arc-shaped synapse structure terminal connectors 2 can better match the shape of the battery poles, increase the contact area, reduce the contact resistance, and thus improve the stability and efficiency of current transmission.

[0022] Under normal operating temperature and current conditions, the expansion of the tab is small, and the bending and folding amplitude of the movable bridge 32 is also relatively small. Only a slight deformation is needed to effectively cope with the expansion and maintain a stable connection between the tab and the battery.

[0023] In high-temperature environments or high-current operating conditions, the tabs heat and expand significantly. At this point, the movable bridge 32's bending and folding amplitude increases, fully utilizing its deformability and effectively preventing the tabs from becoming unsoldered. Furthermore, the arc-shaped contact structure of the terminal connector 2 can better withstand large current and temperature fluctuations, ensuring connection reliability.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A novel battery pack tab with a desoldering function, comprising a tab body (1), characterized in that: The tab body (1) is provided with welding holes (4) evenly and equidistantly in the X-axis direction, and is connected to the battery pole through the welding holes (4). A movable structure is provided between every two welding holes (4), and the movable structure includes movable holes (31) evenly and equidistantly provided in the Y-axis direction, and movable bridges (32) are formed between adjacent movable holes (31).

2. The novel battery pack tab with solder removal function according to claim 1, characterized in that: The movable bridge (32) is an arc-shaped structure with one side concave inward and the other side convex outward.

3. The novel battery pack tab with solder removal function according to claim 1, characterized in that: End connectors (2) are provided at both ends of the tab body (1) in the X-axis direction. The end connectors (2) are arc-shaped synaptic structures. The welding point holes (4) provided at both ends of the tab body (1) are provided at the junction of the end connectors (2) and the tab body (1).

4. The novel battery pack tab with solder removal function according to claim 3, characterized in that: The terminal connector (2) and the tab body (1) are an integrated metal structure.

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