Expansion water tank for automobile

Abstract

The invention relates to the technical field of expansion water tanks and particularly relates an expansion water tank for the automobile. The expansion water tank comprises a tank body formed by welding an upper tank body and a lower tank body, an upper liquid cavity and a lower siphon cavity are formed in the water tank body, a liquid adding opening is formed in a side surface of the upper box body above the liquid cavity, a degassing opening is formed in a groove in one side of the liquid adding opening, a clamping groove is formed in one side of the degassing opening, and a water level sensor is arranged in the clamping groove. A pressure relief opening is formed in the upper box body above the siphon cavity, a water supplementing opening is formed in a side face of the upper box bodyabove the siphon cavity, a siphon channel is formed in the boundary of the liquid cavity and the siphon cavity, a water return opening is formed below the siphon channel, and an air inlet is formed inan opposite side of the water return opening. The invention has the advantages that the limitation of a suspension installation position can be overcome, the upper cavity is the liquid cavity, the lower cavity is the siphon cavity, and the internal and external pressure balance of a whole cooling system is realized. The water level sensor is externally arranged, the repeated disassembly and assembly are facilitated, and the liquid leakage risk is avoided.

Description

technical field [0001] The invention relates to the technical field of expansion water tanks, in particular to an expansion water tank for automobiles. Background technique [0002] There are following deficiencies in the existing expansion tank: [0003] (1) The water tank as a whole must be higher than the highest point of the entire cooling system, higher than the engine and radiator, and the space cannot be used reasonably; [0004] (2) The pressure relief cover is arranged at a high position above the water tank, which takes up a large space. [0005] (3) The sensor space is vertically installed in the Z direction, built-in structure, in direct contact with the antifreeze, and adopts a threaded sealing method, which may easily cause the water tank to leak overnight. Contents of the invention [0006] In order to solve the problems in the prior art, the invention provides an expansion water tank for automobiles which can rationally utilize the space and is convenient...

AI Technical Summary

Problems solved by technology

[0003] (1) The water tank as a whole must be higher than the highest point of the entire cooling system, higher than the engine and radiator, and the space cannot be used reasonably;

[0004] (2) The pressure relief cover is arranged at a high position above the water tank, occupying a large space

[0005] (3) The sensor space is vertically installed in the Z direction, built-in structure, directly in contact with antifreeze, and adopts thread sealing method, which may easily cause water tank leakage

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