Rivet pressing water pipe connector with sealing performance for battery box water cooling plate

Abstract

The invention belongs to the technical field of aluminum battery boxes, and provides a rivet pressing water pipe connector with sealing performance for a battery box water cooling plate, which is usedfor sealing and firmly connecting a water pipe connector and an aluminum alloy water cooling plate. The rivet pressing water pipe connector with the sealing performance for the battery box water cooling plate comprises a main body; the main body is of a hollow cylindrical body structure; hobbing teeth are formed in one end of the main body; the peripheries of the hobbing teeth are provided with awaterproof sealing layer; and the waterproof sealing layer can fill the gap between the hobbing teeth and the aluminum alloy water cooling plate after being extruded in a rivet pressing process. Therivet pressing water pipe connector with the sealing performance for the battery box water cooling plate has the advantages that the rivet pressing water pipe connector is simple in structure and excellent in sealing performance, and can effectively prevent the water cooling plate from a sealing failure and preventing a water cooling liquid from leaking; moreover, the rivet pressing water pipe connector is made of a high-strength aluminum alloy material; and the connector has the advantages of excellent strength, good corrosion resistance, simple and feasible process, high machining efficiencyand the like.

Description

technical field [0001] The invention belongs to the technical field of aluminum battery boxes, and relates to a pressure riveting water pipe joint with sealing performance for a water cooling plate of a battery box. Background technique [0002] With the continuous development of automobile lightweight, more and more battery boxes of electric vehicles adopt all-aluminum profile frame welded structure. As a necessary part of the power battery system, the thermal management of the power battery system is increasingly designed and manufactured by using aluminum alloy profiles to construct a water cooling system. As a water-cooled circulating system, tightness has always been its primary consideration. Once the water-cooling system seals and tightens the interface seal unreliably, which leads to leakage, on the one hand, the liquid coolant in the water-cooling system will continue to decrease, which will affect the cooling effect of the water-cooling system. On the other hand, ...

AI Technical Summary

Problems solved by technology

As a water-cooling circulation system, sealing has always been its primary consideration. Once the water-cooling system is tightly sealed and fastened, the interface seal is not reliable, resulting in leakage. On the one hand, the liquid coolant in the water-cooling system will continue to decrease, which will affect the cooling effect of the water-cooling system. On the other hand, once the coolant flows into the battery pack, it can lead to failure of electronic components in the battery pack, short circuit of the circuit system, etc., which will cause safety accidents of the whole vehicle. How to connect with the water-cooled profile plate simply and reliably, to ensure the sealing while considering the corrosion resistance requirements of the material itself and the strength requirements of the joint itself, etc., is the focus of our research.

The existing ordinary welded water pipe joints will affect the structure and material properties of the faucet joints due to the thermal effect during welding. After welding, the common welded water pipe joints will have a raised weld bead, which will affect the external appearance. Ordinary welded water pipe joints need ring continuous welding to ensure sealing However, at present, this welding process can only be completed by manual welding, and it is difficult to ensure the sealing welding, and the processing efficiency is low. Because ordinary welded water pipe joints require circular welding, it is necessary to reserve a large circle around the water pipe joints to ensure Enough space for welding

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