Electromagnetic valve
A solenoid valve and valve body technology, applied in the field of solenoid valves, can solve problems such as water seepage, increased gap between solenoid valves, and potential safety hazards, and achieve the effects of improving safety performance, improving waterproof performance, and improving bonding performance
Active Publication Date: 2015-03-04
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY
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Problems solved by technology
The solenoid valve coil frame in the prior art is installed in the accommodation cavity of the magnetizer, so that the two ends of the frame and the mating surface of the magnetizer are directly matched, and there is no insulator filling between the two ends of the frame and the mating surface of the magnetizer, which may cause Seepage
The hole on the coil magnet guide that fits with the sleeve of the valve body is larger than the outer diameter of the sleeve on the valve body. During installation, the sleeve runs through the coil. The contact reliability of the valve body cannot be guaranteed, and the gap of the magnetic circuit of the solenoid valve increases; thus affecting the magnetic conductivity and action performance of the solenoid valve, and the grounding insert in the solenoid valve is placed between the skeleton and the magnetic conductor. There may be a hidden danger that the plastic between the grounding insert and the magnetic conductor will not conduct, and the product is difficult to achieve the real purpose of grounding. There may be a safety hazard in the event of lightning strike or leakage
Method used
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[0033] In order to enable those skilled in the art to better understand the technical concept of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] in, figure 2 It is a structural schematic diagram of an embodiment of the solenoid valve of the present invention, image 3 for figure 2 Schematic diagram of the valve body part of the solenoid valve. As shown in the figure, the solenoid valve includes a valve body 30 and a coil 20, the valve body includes a static iron core 31, the upper end surface 311 of the static iron core is provided with a threaded hole 312, and the coil 20 and the valve body 30 are fixed on the Together, the screw holes 312 of the static iron core 31 are fitted with the bolt members 40 . Specifically, the coil 20 is sleeved on the circular sleeve 32 of the valve body 30, and the mating surface 232 of the magnetizer 31 is attached or subs...
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The invention discloses an electromagnetic valve, relating to an electromagnetic valve for controlling the supply and stop of a coolant in a refrigeration system. The electromagnetic valve of the invention comprises a framework and a magnetic conductor, the two of which are covered with an insulating material, wherein the inner and outer edges of the two end faces of the framework are provided with waterproof structures and projection portions are arranged on the two end faces of the framework, so that a gap portion for the filling of the insulating material is formed between the coil framework and the magnetic conductor; therefore, the insulation property of the electromagnetic valve is improved.
Description
technical field [0001] The invention relates to the technical field of refrigeration control, in particular to an electromagnetic valve for controlling the on-off of refrigerant. Background technique [0002] Solenoid valves are often used in HVAC, refrigeration and other systems involving temperature control and regulation to control the on-off of the medium in the piping system. [0003] figure 1 It is a typical structural diagram of a solenoid valve in the prior art. The solenoid valve includes a coil and a valve body. The coil is sleeved on the sleeve of the valve body and fastened with a lock nut. The power on or off of the coil controls the opening or closing of the solenoid valve. . The solenoid valve coil frame in the prior art is installed in the accommodation cavity of the magnetizer, so that the two ends of the frame and the mating surface of the magnetizer are directly matched, and there is no insulator filling between the two ends of the frame and the mating s...
Claims
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IPC IPC(8): F16K31/06
Inventor 傅嵩琳
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY