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Friction stir welding process for lower box body of profile integrated battery pack

A technology of friction stir welding and integrated battery, which is applied in the direction of non-electric welding equipment, welding equipment, manufacturing tools, etc., can solve the problem of leakage of artificial cladding welding, and achieve the effect of reducing the impact

Pending Publication Date: 2021-11-30
福建祥鑫新能源汽车配件制造有限公司
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a friction stir welding process for the lower box of profile integrated battery packs, so as to solve the problem of the risk of liquid leakage at the artificial clad welding place proposed in the above-mentioned background technology

Method used

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  • Friction stir welding process for lower box body of profile integrated battery pack
  • Friction stir welding process for lower box body of profile integrated battery pack
  • Friction stir welding process for lower box body of profile integrated battery pack

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] A friction stir welding process for the lower box of profile-integrated battery packs, including a plugging component, a liquid-cooled bottom plate component 2 with a cooling cavity inside, and a drainage block, including the following steps:

[0029] S1. Splicing the plugging component, the liquid-cooled bottom plate component 2 and the drainage block together with a jig, and the plugging component closes the opening 21 of the cooling cavity of the liquid-co...

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Abstract

The invention discloses a friction stir welding process for a profile integrated battery pack lower box, and belongs to the technical field of battery pack box production. The friction stir welding process comprises a stirring head and a drainage block used for welding and welding process parameters. According to the process, by combining a product structure, selecting a specific stirring head and specific welding parameters and combining drainage of a drainage block, welding and sealing of the end of a profile integrated liquid cooling box are achieved; therefore, the product quality problem caused by manual welding defects is avoided, and the safety of the integrated battery lower box body made of the profile is improved to a great extent; and the popularization of the device is facilitated.

Description

technical field [0001] The invention relates to the technical field of battery box production, in particular to a friction stir welding process for the lower box of profile-integrated battery packs. Background technique [0002] Friction stir welding is widely applicable to various materials. At present, it has successfully realized the welding of aluminum, magnesium and other low melting point metals and alloys, copper alloys, titanium alloys, steel materials, metal matrix composite materials and dissimilar metals (aluminum / copper, aluminum / magnesium, Aluminum / steel, etc.) welding. [0003] At present, the liquid-cooled integrated battery boxes used in the field of commercial vehicles and passenger vehicles mainly include traditional profile technology and independent liquid-cooled plate + FDS locking technology. [0004] The existing profile liquid cooling integration scheme often uses the cavity of the profile as a liquid cooling circulation flow channel to achieve the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12B23K20/24B23K20/26
CPCB23K20/122B23K20/24B23K20/26
Inventor 黄铁兴林桂树杨礼昌叶章卢辉
Owner 福建祥鑫新能源汽车配件制造有限公司
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