Motor waterproof breather valve assembly mechanism

Abstract

The invention discloses a motor waterproof breather valve assembly mechanism which comprises a valve body arranged outside a motor shell. A holding chamber is arranged in the valve body; an air inletand outlet channel is arranged on the valve body; the holding chamber and the outside communicate through the air inlet and outlet channel; two oppositely arranged breather valves are arranged in theholding chamber; each breather valve comprises a valve seat, a spring seat, a pressure spring and a valve element; a single-opening inner chamber is arranged in each valve seat; a first breather holeextending to the outer end surface is formed in the end surface wall of each single-opening inner chamber of each valve seat; a single-opening inner chamber is arranged in each spring seat; a second breather hole extending to the outer end surface is formed in the end surface wall of each single-opening inner chamber of each spring seat; the valve elements are arranged in the inner chambers of thespring seats; the pressure springs are arranged between the end surface walls of the spring seats and the valve elements; openings of the spring seats face the first breather holes so as to be press-fitted into the inner chambers of the valve seats in an interference way; and the valve elements suffers the action of the pressure springs so as to form seals on the first breather holes. The assembly mechanism is simple in structure, ingenious in principle, and capable of being simply installed outside the motor shell so as to realize the function on automatically adjusting the air pressure of an inner cavity.

Description

technical field [0001] The invention relates to a breathing valve structure, in particular to a motor waterproof breathing valve assembly mechanism. Background technique [0002] The inner cavity of the motor is generally a closed or highly airtight structure, especially in severe environmental conditions, the airtightness requirements are higher. However, the motor will generate heat when it is continuously working. The inner cavity is sealed, which causes the internal gas to expand, the internal pressure rises and the body ruptures, and even under extreme conditions, the high temperature heat causes the motor to burn out. In order to avoid the above situation, it is necessary to design a ventilating structure for the motor, so as to adjust the pressure in its inner cavity, but it is necessary to ensure its waterproof and sealing performance. [0003] In the prior art, there is a design of setting an electronically controlled valve on the motor. By cooperating with sensors...

AI Technical Summary

Problems solved by technology

This kind of structural system is relatively complex, requires high sensor sensitivity, high failure rate, poor anti-immersion ability, and a large degree of structural modification of the motor, and insufficient adaptability

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