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Lithium ion polymer battery pack assembling structure and assembling method

A technology for assembling structures and battery packs, which is applied in the direction of isolation of battery pack parts, structural parts, batteries and their environment, etc., can solve the problems of battery pack deformation, battery unusability, etc., to prolong life, facilitate replacement, and avoid external vibration Effect

Inactive Publication Date: 2011-01-12
WOLONG ELECTRIC GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional combination method cannot bear this variable, and the battery pack is seriously deformed in the later period of use, and even the battery cannot be used

Method used

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  • Lithium ion polymer battery pack assembling structure and assembling method
  • Lithium ion polymer battery pack assembling structure and assembling method
  • Lithium ion polymer battery pack assembling structure and assembling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , 2 , 3, the battery pack assembly structure includes an upper cover 1, a lower cover 2, N batteries and N-1 assembly frames 3 between them. The battery includes a battery tank 6 and a battery fixing part 7; the battery tank 6 is rectangular, and the battery tank 6 extends outward to form a battery fixing part 7, and the positive and negative pole ears 8 provided on the battery tank 6 protrude from the fixing part 7, as shown in the above figure The battery shown is a single-side electrode battery, and the positive and negative pole tabs 8 of the single-side electrode battery are located on the same side, and the adjacent batteries are separated by the assembly frame 3. Rectangular battery containing cavity, battery containing cavity periphery is assembling frame 3 frame parts, and battery containing cavity matches with battery groove 6 and makes battery groove 6 extend in the battery containing cavity, and frame part matches with battery fixing part 7...

Embodiment 2

[0044] Such as Figure 4 , 5 , 6, and 7, the battery is a double-side electrode battery, and the positive and negative pole ears 8 of the single-side electrode battery are separately arranged on both sides of the battery, and the corresponding installation grooves 11 are located on both sides, and the positive pole ears 8 of the battery are bent upwards to meet the The negative electrode of the previous battery is overlapped, and the tab 8 on the other side is bent downward to overlap the positive electrode of the next battery, and the installation slots 11 on the assembly frame 3 on the same side are arranged at intervals.

[0045] If the battery is a single-slot battery, such as Figure 5 As shown, the battery fixing portion 7 is located at the lower end of the battery slot 6 ; the upper surface of the lower cover 2 is flat to abut against the battery fixing portion 7 .

[0046] If the battery is a dual-slot battery, such as Figure 6 , 7 As shown, the battery fixing par...

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Abstract

The invention discloses a lithium ion polymer battery pack assembling structure and an assembling method, which relate to a battery pack assembling structure and an assembling method. A lithium ion polymer battery is used in combination with a shell, it is difficult to replace a single battery in a battery pack once the single battery goes wrong, and the traditional assembling structure has no space for battery deformation and has a short service life. The lithium ion polymer battery pack assembling structure is characterized in that: adjacent batteries are isolated by an assembling bracket which is cuboid, a rectangular battery accommodating chamber is formed on the middle part of the assembling bracket, a side frame part of the assembling bracket is arranged on the periphery of the battery accommodating chamber which is matched with a battery groove, the side frame part is matched with a battery fixing part, and the height of the assembling bracket is greater than the thickness of the battery; and connection holes are formed on the four corners of the assembling bracket, lugs of the battery extend outside the side frame part of the assembling bracket, and the positive and negative lugs of the battery are bent and overlapped. The assembling bracket is arranged out of the battery pack for protection, a welding mode is avoided to prevent welding defective products, assembling and dismantling are convenient, the defective battery can be conveniently exchanged, the expansion factor of the battery is taken into consideration, and the service life of the product is prolonged.

Description

technical field [0001] The invention relates to an assembly structure and an assembly method of a battery pack. Background technique [0002] In recent years, the combination of lithium-ion polymer batteries has become more and more widely used, such as driving power sources for notebook computers, cordless power tools, electric mopeds, etc. Such driving power sources, so-called lithium-ion polymer batteries, have already been put into practical use. Considering the need to protect the lithium-ion polymer battery casing (aluminum-plastic composite film) from external shocks, scratches, etc., generally such polymer batteries should be used with casings, especially battery packs. [0003] This type of battery pack is generally assembled by ultrasonic welding or ultrasonic welding followed by soldering. During the use of the battery pack, if one battery has a problem and cannot be used, it is very inconvenient to replace, and even the entire battery pack needs to be replaced. ...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/26H01M50/227H01M50/24H01M50/242H01M50/51H01M50/514
CPCY02E60/10
Inventor 王秀利孟新根
Owner WOLONG ELECTRIC GRP CO LTD
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