relay

A relay and electrical conduction technology, applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve problems such as circuit sintering, product loss of function, excessive load current, etc., to avoid fires, improve safety, and facilitate extinguishing arc effect

Active Publication Date: 2019-11-22
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of electrical appliances, there may be short-circuit problems, and during the use of relays, short-circuit may cause problems such as excessive load current or circuit sintering, which will cause the product to lose its function and cause failure in use.

Method used

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] In the relay of the related art, since there is no overload protection device, when the relay is turned on, once the load current is too large or the circuit is short-circuited, it is easy to cause sintering, which will cause the product to lose its function and cause danger. In addition, there is no arc extinguishing device in the above technology, so the arcing time is long and the service life of the product is short. In order to solve one of the technical problems in the related art at least to a certain extent, the pr...

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Abstract

The invention discloses a relay. The relay comprises an enclosure, a bottom plate and a driving device, wherein two static contacts are arranged on the enclosure and are isolated with each other, two contact parts are arranged on the bottom plate, are corresponding to the two static contacts and are spaced with each other for isolation, a cavity is formed in the bottom plate, a fuse is arranged in the cavity, the fuse is connected with the two contact parts so that the two contact parts are electrically connected, the bottom plate is movably arranged in the enclosure between a connection position and a disconnection position, the two contact parts and the two static contacts are respectively abutted to make the two static contacts connected when the bottom is at the connection positions, and the two contact parts are separated from the two static contacts to make the two static contacts disconnected when the bottom plate is the disconnection position. According to the relay disclosed by the embodiment of the invention, the effects of overload protection and short-circuit protection are achieved by the fuse, so that the safety of a circuit system with the relay is improved, and a fire caused by overcurrent or short circuit is prevented.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a relay. Background technique [0002] During the use of electrical appliances, there may be short-circuit problems, and during the use of relays, short-circuit may cause problems such as excessive load current or circuit sintering, which will cause the product to lose its function and cause malfunctions in use. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a relay that reduces or avoids potential safety hazards that may be caused by excessive load current or short circuit. [0004] The relay according to the embodiment of the present invention includes: a casing, on which two static contacts insulated from each other are provided; a bottom plate, the bottom plate includes a fuse installation part and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/02H01H50/58
CPCH01H50/023H01H50/58H01H2050/025
Inventor 黄彩丽姚保同汪鲁建刘斯源
Owner BYD CO LTD
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