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Relay for detecting working state of main contact and method for judging working state of main contact

A technology of working state and main contact, applied in relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve the problems affecting the miniaturization of relays, the magnetic field shielding of the outer wall of the relays, and increasing the height of the relays, so as to achieve the effect of not being easily disturbed by external magnetic fields.

Pending Publication Date: 2022-07-01
ZHEJIANG YINGLUOHUA NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above scheme has the following defects: the reed switch used for the magnetic field generated by the induction coil is placed on the lower side of the U-shaped yoke, and the U-shaped yoke plays a certain shielding effect on the coil magnetic field located in the U-shaped yoke. The magnetic field on the outer wall of the relay is shielded, and the reed switch is easily misjudged by the external magnetic field of the relay; and the reed switch is located on the lower side of the U-shaped yoke, which will increase the height of the relay and affect the miniaturization of the relay

Method used

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  • Relay for detecting working state of main contact and method for judging working state of main contact
  • Relay for detecting working state of main contact and method for judging working state of main contact
  • Relay for detecting working state of main contact and method for judging working state of main contact

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Embodiment 1

[0022] Depend on Figure 1 to Figure 3 As shown, the present invention discloses a relay for detecting the working state of the main contact, comprising a casing 1, a movable reed 11 and a lead-out end 12 are arranged in the upper part of the casing 1, and two ends of the movable reed 11 are provided with a main Contact 13, the lower end of the lead end 12 is provided with a static contact 14; the lower part of the housing 1 is provided with a yoke iron plate 21 and a U-shaped yoke iron 22, the yoke iron plate 21 is located at the upper end opening of the U-shaped yoke iron 22, and the yoke iron plate 21 and the U-shaped yoke 22 form an accommodating cavity 20, the accommodating cavity 20 is provided with a magnetic circuit part, the magnetic circuit part includes a coil frame 23, a coil coil 24 that can generate a magnetic field after being energized, a magnetic conducting cylinder 25, and the magnetic conducting cylinder 25 is fixed In the vertical shaft hole of the coil fra...

Embodiment 2

[0027] This embodiment discloses a method for judging the working state of the main contact, which includes the following steps: S1. The coil is energized, the internal circuit of the reed switch is turned on, and the external detection module detects the signal that the reed switch is turned on, and then judges that the main contact is turned on. The contact moves and contacts with the static contact; S2. The coil loses power, the internal circuit of the reed switch is disconnected, and the external detection module detects the signal that the reed switch is disconnected, and judges that the main contact is reset and disconnected from the static contact open. Among them, S1 and S2 are in no particular order.

[0028] The invention has the advantages of being less susceptible to external magnetic field interference, facilitating miniaturization of the relay, and convenient assembly.

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Abstract

The invention relates to a relay, in particular to a relay for detecting the working state of a main contact and a method for judging the working state of the main contact. A relay for detecting the working state of a main contact is characterized in that the relay comprises a shell, a movable reed is arranged in the upper portion of the shell, the main contact is arranged on the movable reed, a yoke plate and a U-shaped yoke are arranged on the lower portion of the shell, the yoke plate and the U-shaped yoke form a containing cavity, a magnetic circuit part and a reed pipe are arranged in the containing cavity, and the magnetic circuit part is connected with the reed pipe. The movable reed moves under the action of the magnetic circuit part and drives the main contact to move, the magnetic circuit part comprises a coil capable of generating a magnetic field after being electrified, and the reed switch is located on the circumferential outer side of the coil. The relay has the advantages that the relay is not easily interfered by an external magnetic field, the miniaturization of the relay is facilitated, and the assembly is very convenient.

Description

technical field [0001] The invention relates to a high-voltage direct current relay, in particular to a relay for detecting the working state of a main contact and a method for judging the working state of the main contact. Background technique [0002] In order to grasp the working state of the main contact, the Chinese patent with application number 201910208203.2 discloses a high-voltage DC relay capable of detecting the action state of the main contact, including a main contact, a main reed, a pushing mechanism and a magnetic circuit part, two main contacts. The contacts are respectively arranged on the upper part of the relay, the main reed is fitted under the two main contacts, the magnetic circuit part is arranged on the lower part of the relay, and the pushing mechanism is connected between the main reed and the magnetic circuit part to push the magnetic circuit part when it is working. The main reed moves upward to contact the two main contacts, the reed switch is a...

Claims

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Application Information

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IPC IPC(8): H01H50/08H01H50/10H01H50/56
CPCH01H50/08H01H50/10H01H50/56
Inventor 郭顺可郭晓滨裘毅杜德进王亚炜
Owner ZHEJIANG YINGLUOHUA NEW ENERGY TECH CO LTD