Encapsulated low-temperature explosion-proof coil

A coil and low-temperature technology, applied to coils, valve details, valve devices, etc., can solve problems such as low explosion-proof level, high coil temperature, and low suction force
CN109780302AInactive Publication Date: 2019-05-21YUYAO NO 4 INSTR FACTORY ZJEJIANG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
YUYAO NO 4 INSTR FACTORY ZJEJIANG
Publication Date
2019-05-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of explosion-proof electromagnetic valves, and particularly relates to an encapsulated low-temperature explosion-proof coil. The encapsulated low-temperature explosion-proof coil comprises a low-temperature explosion-proof coil body; the low-temperature explosion-proof coil body comprises a low-power consumption energy-saving module. The input end of the low-power consumption energy-saving module is in tin soldering connection with a leader cable externally connected; the output end of the low-power consumption energy-saving module is in tin soldering connection with a winding of a coil winding component; and the low-power consumption energy-saving module is placed in a cavity of an explosion-proof metal housing main body, and then is encapsulated by epoxy resin fillers. According to the encapsulated low-temperature explosion-proof coil, the low-power consumption energy-saving module is additionally adopted, is arranged in a metal housing, and then is encapsulated by epoxy resin. The encapsulated low-temperature explosion-proof coil has the advantages of low temperature rise, large suction force, high explosion-proof grade and the like,and the problem that the electromagnetic valve fitting with the encapsulated explosion-proof coil for use is low in opening pressure and limited in usable range due to the fact that the encapsulated explosion-proof coil in a current market is high in temperature rise, small in suction force and low in explosion-proof grade is solved.
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Description

【Technical field】

[0001] The invention relates to the technical field of explosion-proof electromagnetic valves, in particular to a casting-type low-temperature explosion-proof coil. 【Background technique】

[0002] In the field of explosion-proof solenoid valves, the coil is the power drive part of the explosion-proof solenoid valve. Encapsulated explosion-proof coils enclose sparks or overheated parts that may ignite explosive mixtures into the compound, so that they cannot ignite explosive gas atmospheres under operating or installation conditions.

[0003] At present, the potting type explosion-proof coils on the market are directly soldered with the external cables and the coil windings, and then put into the metal casing, and filled with epoxy resin for encapsulation. The main defects of the existing cast-encapsulated explosion-proof coil structure are: the coil temperature rises, the suction force is small, and the explosion-proof grade is low, which greatly reduces t...

Claims

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