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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PUM

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Abstract

The invention discloses a bellows, which comprises a bellows body, at least one end of which is open. There is a spring, one end of the spring is connected with the connecting part of the valve core, and a guide post for preventing the spring from bending laterally is sheathed in the spring. At least one end of the bellows is open to balance the internal and external pressure of the bellows, and the rigidity of the bellows is increased by setting a spring inside the bellows body. Lateral bending occurs during the expansion and contraction process, and lateral pressure is applied to the bellows body to avoid the axis deviation or inclination of the bellows, thereby avoiding lateral pressure on the spool of the solenoid valve and ensuring the normal operation of the solenoid valve. The invention also discloses a solenoid valve comprising the bellows.

Description

Technical field [0001] The present invention relates to the technical field of elastic sensitive elements, and more particularly to a bellows. Further, the present invention also relates to an electromagnetic valve comprising the bellows described above. Background technique [0002] The automotive air conditioner solenoid valve in the prior art typically uses a vacuum welding bellows to induce the pressure of the solenoid valve inhalation fluid, and combine the electromagnetic force of the electromagnetic coil to jointly control the opening and closing of the valve. [0003] At both ends of the vacuum welding ripper tube, a closed bellows are typically formed by the welded end cap, and the interior of the closed bellows is vacuum state, and under the variation of the external pressure, vacuum welding bellows elongated or contracted. [0004] The automotive engine ECU controls the size of the electromagnetic force based on the stretching amount of the vacuum welding ripple, so th...

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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