Plastic one-way water valve for new energy vehicle

Abstract

The invention discloses a plastic one-way water valve for a new energy vehicle. The plastic one-way water valve comprises a plastic valve body and a valve element. The valve element is fixed inside the plastic valve body, and comprises a metal valve seat, a metal bushing, a steel ball and a spring, wherein the metal valve seat comprises a front valve cylinder and a rear valve cylinder, the cylinder diameter of the rear valve cylinder is smaller than that of the front valve cylinder, the left end of the rear valve cylinder is welded to the right end of the front valve cylinder, the rear valve cylinder communicates with the front valve cylinder, and an abutting ring is fixedly arranged at the right end of the inner wall of the rear valve cylinder. The spring is horizontally arranged inside the rear valve cylinder. The metal bushing is fixed on the inner wall of the front valve cylinder in a threaded mode. A valve seat hole is formed in the right side wall of the metal bushing. The steelball is located in the rear valve cylinder. According to the plastic one-way water valve, the structure is simple, weight is small, size is small, cost is low, one-way conveying of a refrigerating fluid can be realized through cooperation of the steel ball, the metal bushing and the spring in the valve element, and the steel ball and the metal bushing cooperate with each other, so that liquid backflow can be effectively prevented; and meanwhile, the tightness of connection between the valve and other components is good, and the safety of a pipeline system is enhanced.

Description

technical field [0001] The invention relates to the field of drainage devices, and more specifically, to a plastic one-way water valve for new energy vehicles. Background technique [0002] In the refrigerant circuit of the new energy vehicle thermal management system or its air conditioning system, a two-way plastic water valve with a servo motor is often used to replace the one-way water valve (such as image 3 As shown), some will use industrial stainless steel one-way water valve or industrial copper one-way water valve to replace. However, when using a connected plastic water valve with a servo motor, since the servo motor needs to be driven to realize the control function, an external control device needs to be added. This not only complicates the overall design of the system, increases the cost, and is not conducive to the requirements of lightweight production design for automobiles, but also the servo motor is not resistant to the pressure pulse of the reverse-flowi...

AI Technical Summary

Problems solved by technology

However, when using a connected plastic water valve with a servo motor, since the servo motor needs to be driven to realize the control function, an external control device needs to be added

This not only complicates the overall design of the system, increases the cost, and is not conducive to the requirements of the lightweight production design of automobiles, but also the servo motor is not resistant to the pressure pulse of the reverse-flowing refrigerant, and it is prone to non-return flow failure.

However, when using industrial stainless steel one-way water valves and industrial copper one-way water valves, it will increase the weight of the system and increase the cost. At the same time, the connection between the pipelines is not strong enough to leak easily.

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