relay

Abstract

The invention discloses a relay, and the relay comprises a coil unit, a reel unit, and a yoke unit. The reel unit is made of an insulating material, and comprises a spool, a first baffle plate and a second baffle plate, wherein the first and second baffle plates extend outwards from two ends of the spool. The yoke unit comprises a central spindle passing through the spool, and a yoke. The yoke comprises a base plate which is used for setting the second baffle plate, and a side plate which extends from a side edge of the base plate. The first baffle plate forms a first voltage withstanding groove located between the coil unit and the side plate, and the second baffle plate forms a second voltage withstanding groove which is at least partly located between the coil unit and the side plate. Therefore, the creep distance or spatial distance of the coil unit from the first and second baffle plates to the yoke can be increased, so as to improve a withstood voltage value.

Description

technical field [0001] The invention relates to an electronic control element, in particular to a relay. Background technique [0002] refer to figure 1 and figure 2 , an existing relay (Relay) includes a coil unit 11, a bobbin unit 12, and a yoke unit 13, and can cooperate with a switch unit (not shown) for control switching. [0003] The bobbin unit 12 is made of insulating material, and includes a bobbin 121 for winding the coil unit 11, and a first coil extending outward from both ends of the bobbin 121 to limit the coil unit 11. The baffle 122 and a second baffle 123 . [0004] The yoke unit 13 includes a mandrel 131 passing through the bobbin 121 , and a yoke 132 , the yoke 132 includes a base plate 133 for the second baffle 123 , and a base plate 133 formed by the base plate 133 The side edge extends along the extension direction of the core shaft 131 and is located on the side plate 134 at the side of the coil unit 11 . [0005] Because relays are used as switc...

AI Technical Summary

Problems solved by technology

[0005] Because relays are used as switching elements in circuit applications, there is a certain withstand voltage requirement, and when the relays in the prior art are connected to high voltage, they will be as follows: figure 1 , 2 As shown by the middle arrow, the current will be "creepage" from the coil unit 11 to the side plate 134 of the yoke 132 along the surface of the first baffle 122 or the second baffle 123 (which will be due to the lower withstand voltage one side of the breakdown), resulting in damage to the relay

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