Electromagnetic circuit system and electromagnetic relay

Abstract

The invention discloses an electromagnetic circuit system and an electromagnetic relay. The electromagnetic circuit system comprises a yoke iron, an armature and a coil, wherein the coil is composed of a coil rack and an enameled wire, the coil rack is provided with a through hole for installing an iron core, the yoke iron comprises an L-shaped yoke iron and a U-shaped yoke iron, one edge of the L-shaped yoke iron and one side edge of the U-shaped yoke iron are respectively and oppositely inserted into the through hole of the coil rack from the two ends of the through hole of the coil rack to prop against each other so as to form the iron core installed in the through hole of the coil rack, an end edge at other side edge of the U-shaped yoke iron serves as a knife edge for supporting one end of the armature, and the other edge of the L-shaped yoke iron serves as a pole surface for attracting the other end of the armature during working of the coil. By improving the yoke iron structure, the magnetic circuit system has the characteristics of high magnetic conductivity and excellent assembly process, the usage of the enameled wire can be effectively reduced, and product volume is reduced.

Description

technical field [0001] The invention relates to an electromagnetic magnetic circuit and a relay thereof, in particular to an electromagnetic magnetic circuit system for a DC monostable state, an AC monostable state and a bistable state and an electromagnetic relay with the magnetic circuit structure. Background technique [0002] Relay is an automatic switching element with isolation function, which is widely used in communication, automobile, automatic control, household appliances and other fields, and is one of the most important control elements. [0003] Relays are divided into monostable, bistable, AC, and DC. Different application fields have different requirements for relays with different functions. The bistable relay can keep the relay in the closed or open state without additional power consumption; the AC relay can meet the requirements of the application fields that require AC input. With the rapid development of home furnishing and industrial control, the use ...

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Problems solved by technology

[0004] In the magnetic circuit structure of the prior art, on the one hand, due to the limitation of the external dimensions of the product, the magnetic circuit is prone to magnetic saturation after the coil is excited, so that the magnetic flux generated by the coil cannot be effectively utilized, and the magnetic transmission efficiency of the magnetic circuit is relatively low. low; on the other hand, the magnetic circuit system in the prior art is usually fixed by riveting the iron core and the yoke iron, resulting in the disadvantage of poor assembly process

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