Electromagnetic valve closed in electrified state
A solenoid valve and valve body technology, which is applied in the field of pipeline control and solenoid valve structure, can solve the problems of high assembly requirements and complex assembly process, so as to reduce processing difficulty, ensure stability and reliability, and facilitate assembly. Effect
Active Publication Date: 2013-03-13
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY
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Problems solved by technology
[0004] In the solenoid valve of the above scheme, the sealing part is fixedly connected to the moving iron core part, and the moving iron core part and the sealing part are respectively located at both ends of the static iron core part. In addition, since the sealing part is fixed on the moving iron core The transmission rod on the component is used to drive the action, so the requirements for assembly are relatively high, and the assembly process is also relatively complicated
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[0027] The present invention is suitable for solenoid valves that are closed when energized, such as solenoid valves that are directly closed when energized and indirectly closed by a pilot type. When the flow rate requirements of the solenoid valve are relatively small, the structure of direct opening and closing is generally adopted. The solenoid valve requires a relatively large flow rate to adopt a pilot-operated indirect opening and closing structure; from the perspective of the two structures, the pilot-operated indirect opening and closing structure is relatively complicated, and the working principle of the two is the same. For this reason, a solenoid valve that adopts a pilot type to realize indirect closing will be described in detail below.
[0028] Figure 7 It is a schematic diagram of an embodiment of the solenoid valve of the present invention, figure 1 It is a schematic diagram of the first embodiment of the static iron core assembly of the electromagnetic val...
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The invention discloses an electromagnetic valve closed in an electrified state, which comprises a valve body part and a coil part, wherein a movable iron core part and a fixed ion core component are arranged in the valve body part. The electromagnetic valve is characterized in that: the fixed ion core component comprises a fixed part which is immobilized axially and a moveable part which can move axially and relatively; and an offsetting spring is arranged between the fixed part and the moveable part which can rotate axially and relatively. The electromagnetic valve closed in the electrified state belongs to the technical field of refrigeration control. After the electromagnetic valve of the invention is used, an assembly process is relative simple, the offsetting spring avoids an electromagnetic loop, the magnetic loop is rationally designed, and thus, the stability and reliability of the electromagnetic valve can be guaranteed.
Description
technical field [0001] The invention belongs to the technical field of refrigeration control, and is especially suitable for the control of pipelines of refrigeration systems such as refrigeration equipment and commercial air conditioners. In particular, it relates to a solenoid valve structure that is closed when energized. Background technique [0002] Solenoid valves for pipeline opening and closing are widely used in the circuit of refrigeration systems. Generally, solenoid valves are opened when energized, and some pipelines are closed when energized, which is more energy-saving and suitable. There are generally two kinds of electromagnetic valves that are energized and closed. One is the electromagnetic valve disclosed in the Chinese utility model patent whose patent application number is 03231177. One kind of solenoid valve adopts the working mode of direct opening and closing, and the flow rate of the general solenoid valve is relatively small; while the one for the...
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IPC IPC(8): F16K7/17F16K31/06
Inventor 陈斌
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY