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Cylindrical battery bottom welding pin device and bottom welding pin method

A cylindrical battery and pin insertion device technology, which is applied to secondary batteries, circuits, electrical components, etc., can solve problems such as poor pin insertion and bottom welding, and achieve convenient pin operation, improved bottom welding yield, and overall structure simple effect

Pending Publication Date: 2020-03-27
河南鑫泉能源科技有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a cylindrical battery bottom welding pin device, which aims to solve the technical problem of high bottom welding failure caused by poor pins of cylindrical battery bottom welding equipment in the prior art

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  • Cylindrical battery bottom welding pin device and bottom welding pin method
  • Cylindrical battery bottom welding pin device and bottom welding pin method
  • Cylindrical battery bottom welding pin device and bottom welding pin method

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...

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Abstract

The invention belongs to the technical field of battery manufacturing equipment, and particularly relates to a cylindrical battery bottom welding pin device and a bottom welding pin method, the cylindrical battery bottom welding pin device comprises a chambering pin which comprises at least two pin shells, and an inflation mechanism, each pin shell is internally and movably provided with a movablepart, and the inflation mechanism is used for inflating the needle shells, so that the movable pieces in the pin shells extend out of the pin shells and abut against the pin shells, the pin shells are scattered to form reamed holes, and therefore the welding pins can be inserted into the reamed holes and inserted into the bottom of the roll core for bottom welding. The embodiment of the inventionprovides a cylindrical battery bottom welding pin device, the inflating mechanism inflates the pin shells; the chambering pin achieves the chambering function in the roll core through the air expansion effect, after inflation is completed, the pin shells are scattered to form chambering holes, the welding pins can be inserted into the bottom of the roll core through the reamed holes, then bottomwelding operation is completed, the bottom welding device is simple in overall structure, pin inserting operation is convenient and fast, the poor pin inserting phenomenon cannot occur after chambering, and the bottom welding yield is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of battery manufacturing equipment, and in particular relates to a cylindrical battery bottom welding pin device and a bottom welding pin method. Background technique [0002] With the improvement of automation, the production efficiency of lithium-ion batteries has been greatly improved. However, there are still many problems in the automation process in some processes. For example, after the cylindrical lithium-ion battery is wound into the shell, a bottom welding process is required. The bottom welding process is to insert the welding pin from the center hole of the battery cell to the bottom. Perform resistance welding. Although the existing automatic shelling machine includes an automatic pin insertion process, the winding pins of cylindrical lithium-ion batteries are generally about 3.5-4mm, the diameter of the center hole is small, and the diameter of the welding pins is usually about 2.5mm, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0587H01M10/0525
CPCH01M10/0525H01M10/0587Y02E60/10Y02P70/50
Inventor 吕婷杨永峰
Owner 河南鑫泉能源科技有限公司
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