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Bellows and solenoid valve with the bellows

A technology of bellows and solenoid valves, applied to valve devices, mechanical equipment, engine components, etc., can solve problems such as failure, reduced function of solenoid valves, and inability to accurately control valve opening and closing

Active Publication Date: 2021-07-06
上海进纬仪器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the ECU of the automobile engine still controls the electromagnetic force to work under the initial setting value, so it cannot accurately control the opening and closing of the valve, thereby reducing the function of the electromagnetic valve or even failing.

Method used

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  • Bellows and solenoid valve with the bellows
  • Bellows and solenoid valve with the bellows
  • Bellows and solenoid valve with the bellows

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Embodiment Construction

[0029] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0030] The core of the present invention is to provide a bellows that are not susceptible to transverse pressure. Another core of the present invention is to provide an electromagnetic valve comprising the above-described bellows that prevents valves caused by the lateral pressure of the bellows.

[0031] Please refer to Figure 1 - Figure 3 , figure 1 A schematic illustration of the specific embodiment of the bellows provided by the present invention; figure 2 A schematic illustration of the specific embodiment of the bello...

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Abstract

The invention discloses a bellows, which includes a bellows body. At least one end of the bellows body is open. One end of the bellows body is provided with a valve core connection portion for contacting the valve core of a solenoid valve. The bellows body is provided with an internal There is a spring, one end of the spring is connected to the valve core connection part, and a guide post is set inside the spring to prevent the spring from bending laterally. At least one end of the bellows is open to balance the internal and external pressure of the bellows, and the stiffness of the bellows is increased by setting a spring inside the bellows body. The guide column is used to guide the expansion and contraction of the spring and prevent the spring from being stressed. Lateral bending occurs during the expansion and contraction process, exerting lateral pressure on the bellows body, preventing the axis of the bellows from deflecting or tilting, thereby avoiding lateral pressure on the valve core of the solenoid valve and ensuring the normal operation of the solenoid valve. The invention also discloses a solenoid valve including the above-mentioned bellows.

Description

Technical field [0001] The present invention relates to the technical field of elastic sensitive elements, and more specifically, to a corrugated tube. In addition, the present invention also relates to a solenoid valve including the above-mentioned bellows. Background technique [0002] The solenoid valve of the automobile air conditioner compressor in the prior art usually uses a vacuum welded bellows to sense the pressure of the fluid inhaled by the solenoid valve and combine it with the electromagnetic force of the solenoid coil to jointly control the opening and closing of the valve. [0003] The two ends of the vacuum welded bellows are usually welded with end caps to form a closed bellows. The inside of the closed bellows is in a vacuum state. Under changes in external pressure, the vacuum welded bellows expands or contracts. [0004] The automobile engine ECU controls the magnitude of the electromagnetic force based on the expansion and contraction of the vacuum wel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K51/00
CPCF16K51/00
Inventor 金培炅
Owner 上海进纬仪器设备有限公司
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