Bistable electromagnetic valve

A solenoid valve and bistable technology, applied in the field of bistable two-position three-way solenoid valve, can solve the problems of increased deburring process, high processing cost, and easy formation of burrs, so as to reduce production costs, improve performance, The effect of convenient processing

Active Publication Date: 2010-06-30
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the bistable solenoid valve with the above structure, after the refrigerant enters the first valve cavity 13 from the inlet pipe, it enters the second valve cavity 14 through the groove 12 arranged on the surface of the core iron component, that is, the flow channel of the refrigerant is set on the core. The groove 12 on the surface of the iron part, since the core iron part is located between the first valve chamber 13 and the second valve chamber 14, except that the refrigerant at both ends will generate pressure on the core iron part, the refrigerant flowing in the groove will It brings more complicated thrust to the core iron parts, and it is easy to make the core iron parts move irregularly in the valve cavity, thus causing noise
Moreover, in the bistable solenoid valve with the above structure, the flow channel is directly processed on the core iron, the processing process is relatively complicated, and burrs are easily formed during the processing process. In actual use, the deburring process needs to be increased, and the processing cost is relatively high.

Method used

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  • Bistable electromagnetic valve
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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to facilitate the description of the difference between the present invention and the prior art, the same numbering is used for the parts that have the same function as those in the prior art and have not been changed.

[0018] image 3 It is a longitudinal sectional view of an embodiment of a bistable solenoid valve of the present invention, Figure 4 yes image 3 B-B sectional view of the shown bistable solenoid valve.

[0019] The bistable solenoid valve consists of an excitation coil I and a valve body part II. The excitation coil I is set and fixed on the outer circumference of the valve body part II. The valve body part II is a double-hole valve fixed by a large sleeve 6 and welded at both ends Seat 1 and ...

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Abstract

The invention relates to a bistable electromagnetic valve, which comprises a magnet exciting coil and a valve body part. The magnet exciting coil is sheathed at the external part of the valve body part. A core iron part capable of moving axially is arranged in the valve body part. The valve body part comprises a large casing, a two-hole valve seat and a single-hole valve seat, wherein the two-hole valve seat and the single-hole valve seat are respectively arranged at the two ends of the large casing. A small casing coaxially configured with the large casing is arranged in the large casing. The core iron part can move back and forth in the small casing. A fixed part is configured between the large casing and the small casing. At least a pair of permanent magnets is symmetrically arranged on the periphery of the fixed part. A fluid passage is arranged between the large casing and the small casing. Since the fluid passage is directly formed on the injection part, the processing is convenient, the noise caused by the fluid passage arranged on the surface of the core iron part in the prior art is eliminated and the performance of the product is improved; and since the fluid passage can be formed on the injection part at one step, no further processing is required and the production cost is greatly reduced.

Description

technical field [0001] The present invention relates to a bistable solenoid valve, in particular to a bistable solenoid valve for controlling refrigerant flow paths in a refrigeration system, such as a bistable two-position three-way solenoid valve for refrigerators. Background technique [0002] A two-position three-way solenoid valve used in a refrigerator will be described below. figure 1 It is a structural schematic diagram of a bistable two-position three-way solenoid valve in the prior art. The bistable two-position three-way solenoid valve is mainly composed of an excitation coil and a valve body component. The excitation coil is set on the outer circumference of the valve body component, and the valve body component includes a double-hole valve seat 1 and an outlet pipe 9 welded on it. Inlet pipe 10; one end of the large casing 6 is welded on the double-hole valve seat 1, and the port at the other end is connected with a single-hole valve seat 7, which is provided w...

Claims

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Application Information

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IPC IPC(8): F16K11/02F16K31/06F16K47/02F25B41/04
Inventor梁原忠
OwnerZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD