Solenoid valve and shock absorber comprising the same

By adopting a structural design of moving valve core, annular seal and pin in CDC solenoid valve, the solenoid valve is simplified and the seal is reliably connected. This solves the problem of complex structure and high cost of existing CDC solenoid valves, and improves the reliability and durability of solenoid valves.

CN224497222UActive Publication Date: 2026-07-14JOHNSON ELECTRIC MOTION TECHNOLOGY (CHANGZHOU) CO LTD
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Patent Information

Application Number
CN202521070828.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2026-07-14
Estimated Expiration
2035-05-28

AI Technical Summary

Technical Problem

Existing CDC solenoid valves have complex structures and high costs, making simplification difficult.

Method used

The solenoid valve adopts a structure including a moving valve core, annular seal and pin. The sealing is achieved by the axial reciprocating motion of the pin. The connection method of the seal is simplified by the cooperation of the annular flange and the elastic element.

Benefits of technology

The structure of the solenoid valve has been simplified, the reliability and durability of the seals have been improved, and production costs have been reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a solenoid valve and a shock absorber including the solenoid valve, which simplifies the structure of the solenoid valve. The solenoid valve includes a valve element, which includes a liquid passage; a movable valve core capable of axial reciprocating motion; an annular first seal capable of sealing the liquid passage; and a pin connected to the movable valve core and capable of axial reciprocating motion with the movable valve core. The head of the pin includes a first shoulder and an annular flange that is fitted with the first seal and deforms at the end with axial pressure to generate an outwardly extending flange, thereby limiting the first seal to be located between the first shoulder and the annular flange, so that the first seal is pressed against the pin. The first mounting portion continues the first shoulder, and the outer diameter of the first mounting portion is smaller than the outer diameter of the first shoulder. The first mounting portion, the first shoulder, and the movable valve core are arranged sequentially along the axial direction.
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