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Graphite clamp for battery liquid cooling plate brazing and clamping method of thereof

A battery fluid and graphite technology, applied in manufacturing tools, welding equipment, auxiliary devices, etc., can solve problems such as high requirements for the clamping control of the liquid-cooled plate plane, the flatness of the brazing fixture cannot be guaranteed, and the surface flatness of the water-cooled plate is affected. , to shorten the time of clamping the fixture, facilitate the release of heat load, and improve the finish

Pending Publication Date: 2021-06-18
DONGFENG BEHR THERMAL SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Most of the existing brazing fixtures are made by stainless steel tailor welding, and the flatness of the brazing fixtures cannot be guaranteed, which will affect the flatness of the surface of the water-cooled plate after brazing; at the same time, the use of stainless steel brazing fixtures will cause liquid after brazing. A black oxide layer appears on the surface of the cold plate, which seriously affects the smoothness of the surface of the liquid cold plate; in addition, the bracket clamp has very high requirements for the clamping control of the entire plane of the liquid cold plate. If the liquid cold plate cannot be clamped uniformly, the brazing During the welding process, it will lead to poor welding, which will directly lead to the scrapping of the liquid cooling plate

Method used

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  • Graphite clamp for battery liquid cooling plate brazing and clamping method of thereof
  • Graphite clamp for battery liquid cooling plate brazing and clamping method of thereof

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 and figure 2 As shown, a graphite fixture for battery liquid cold plate brazing of the present invention includes a stainless steel bracket 1, the stainless steel bracket 1 is two horizontal and three vertical grids, and is welded by stainless steel with a thickness of 2mm. The stainless steel bracket 1 There is a groove space in the central area of ​​the stainless steel bracket 1, and limit ribs are arranged around the groove space of the stainless steel bracket 1. A graphite bottom plate 2 is arranged on the groove space, and a graphite upper plate 3 is arranged above the graphite bottom plate 2. The graphite bottom plate 2 and the graphite upper plate Each plate 3 is provided with a first process positioning hole 4 and a second process positioning hole 5 corresponding to each other.

[0034] Wherein, the ...

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Abstract

The invention relates to the technical field of thermal management of new energy vehicle power batteries, and discloses a graphite clamp for battery liquid cooling plate brazing, which comprises a stainless steel bracket, wherein a groove space is arranged in the central area of the stainless steel bracket, a graphite bottom plate is arranged on the groove space, and a graphite upper plate is arranged above the graphite bottom plate. The graphite bottom plate and the graphite upper plate are each provided with a first process positioning hole and a second process positioning hole, wherein the first process positioning holes correspond to each other, and the second process positioning holes correspond to each other. The invention further discloses a clamping method of the graphite clamp for battery liquid cooling plate brazing. According to the graphite clamp for battery liquid cooling plate brazing and the clamping method thereof, the flatness and smoothness of the surface of the liquid cooling plate obtained after brazing forming are guaranteed, and the brazing qualification rate of the flat plate type liquid cooling plate is increased.

Description

technical field [0001] The invention relates to the technical field of thermal management of power batteries of new energy vehicles, in particular to a graphite clamp for brazing a battery liquid cold plate and a clamping method thereof. Background technique [0002] At present, in the battery thermal management parts industry, the brazing production of flat-type liquid-cooled plates usually uses stainless steel bracket-type brazing fixtures to clamp and fix the liquid-cooled plates, put the liquid-cooled plates in the brazing fixtures, and then Enter the brazing furnace to braze the liquid cold plate. [0003] Most of the existing brazing fixtures are made by stainless steel tailor welding, and the flatness of the brazing fixtures cannot be guaranteed, which will affect the flatness of the surface of the water-cooled plate after brazing; at the same time, the use of stainless steel brazing fixtures will cause liquid after brazing. A black oxide layer appears on the surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/08
CPCB23K3/087
Inventor 吴杰钟昌陈熙瑞廖星东
Owner DONGFENG BEHR THERMAL SYST
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