Ultrasonic welding device

CN224855139UActive Publication Date: 2026-10-16HUIZHOU EVE POWER CO LTD
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Patent Information

Application Number
CN202522246606.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-10-16
Estimated Expiration
2035-10-23

AI Technical Summary

Technical Problem

其一为工艺参数优化法，通过调整焊接压力、振幅、能量、时间等参数组合，试图找到兼顾焊接强度与抗开裂性的“工艺窗口”，但该方法优化空间有限，且参数间相互耦合，为抑制开裂而降低能量或压力时，易引发焊核面积不足、虚焊等新问题，无法从根本上解决焊头几何形状导致的应力集中问题，工艺鲁棒性较差

Benefits of technology

[0005] According to the ultrasonic welding device of this utility model, by covering the corner positions of the welding seat and welding head with gaskets, the gaskets not only serve to gather the foil at the welding entry point, ensuring the stability of the foil during subsequent welding, but also buffer and absorb welding stress, thereby further absorbing and dispersing stress, reducing stress concentration, and preventing excessive local deformation of the foil or electrode tabs. This significantly reduces the risk of cracks or splits in the foil and electrode tabs during welding, improving welding quality stability and yield. It can also fundamentally solve the problem of stress concentration at the chamfer position, completely eliminating the need for additional metal gaskets, avoiding additional processes, and achieving permanent cost reduction and efficiency improvement through improvements to the welding head and welding seat. It simplifies the welding process, avoids the introduction of new production processes, improves production efficiency, and reduces energy consumption and costs.

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Abstract

The utility model discloses an ultrasonic welding device, ultrasonic welding device includes: welding seat and welding head, and welding head and welding seat are arranged along the first direction interval, and the surface of welding seat and welding head is first surface relatively arranged in the first direction, and two first surfaces cooperate and define the welding space, and the one side wall surface of welding seat and welding head in the second direction is first side wall, and first side wall is connected with first surface, two gaskets, two gaskets are arranged on welding seat and welding head respectively, and the corner position of gasket is covered in the connection of first side wall and first surface. According to the ultrasonic welding device of the utility model, the gasket can play the role of folding foil in the welding entrance position, guarantees the stability of foil in the subsequent welding process, and can also play the role of buffering and energy absorption to the welding stress, significantly reduces the risk of crack or cracking of foil and pole lug in the welding process.
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