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Direct-acting relay with a double-bridge structure

A direct-acting, relay technology, applied in the direction of relays, electromagnetic relays, electromagnetic relay details, etc., can solve problems such as increasing costs, and achieve the effects of reducing power consumption, improving life, and reducing closing temperature

Active Publication Date: 2019-01-11
厦门宏发交通电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the arc extinguishing ability, some relays add magnetic steel or sealed cavity, which greatly increases the cost

Method used

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  • Direct-acting relay with a double-bridge structure
  • Direct-acting relay with a double-bridge structure
  • Direct-acting relay with a double-bridge structure

Examples

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Embodiment Construction

[0023] Such as Figure 1-Figure 4 As shown, the present invention is a direct acting relay with a double bridge structure, including a terminal assembly 1 , a bridge assembly 2 and a magnetic circuit assembly 3 .

[0024] The terminal assembly 1 is located above the bridge assembly 2 and opposite to the bridge assembly. The lower part of the bridge assembly 2 is movably nested in the magnetic circuit assembly 3 and can move up and down.

[0025] The magnetic circuit assembly 3 includes a static iron core 31 , a coil assembly 32 , a flat yoke 33 , a U yoke 34 , and a moving iron core 35 . The moving iron core 35 is movably sleeved in the middle hole of the static iron core 31 .

[0026] Such as Figure 4-Figure 6 As shown, the bridge assembly 2 includes four movable contacts 21 , 22 , 23 , 24 , an upper bridge 25 , a lower bridge 26 , a bridge bar 27 , and a bridge spring 28 . The shape of the upper bridge 25 and the lower bridge 26 is Z-shaped, the upper bridge 25 and the l...

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Abstract

The invention discloses a direct-acting relay with a double-bridge structure, which comprises a terminal assembly, a bridge assembly and a magnetic circuit assembly. The terminal assembly is arrangedabove the bridge assembly and opposite to the bridge assembly, and the lower part of the bridge assembly is movably sleeved in the magnetic circuit assembly and can move up and down. The bridge assembly comprises four moving contacts, an upper bridge, a lower bridge, a bridge bar and a bridge spring, wherein the four moving contacts are respectively riveted or welded on the upper bridge and the lower bridge, the middle of the upper bridge and the lower bridge are stacked and fixed on the top end of the bridge bar, the lower end of the bridge bar is movably inserted into the magnetic circuit assembly, and the bridge spring is sleeved on the lower part of the bridge bar. As that bridge assembly of the invention is a double-bridge direct-acting structure, By dividing the original voltage of the two ends of the contact into two segments, reducing the voltage of the two ends of the contact, reducing the energy of the arc, dividing the original current of the two ends of the contact into twobridges, reducing the current flowing through the contact, further reducing the energy of the arc, the consumption of the contact will be greatly reduced, and the service life of the relay will be prolonged.

Description

technical field [0001] The invention relates to an electromagnetic relay, in particular to a direct acting relay with a double bridge structure. Background technique [0002] The power supply in the car mostly uses 12VDC, so the rated load voltage of the existing relays is mostly 12VDC. With the development of the automobile industry, more and more high-power automotive components are applied to the car, and the 12V battery pack has gradually been unable to meet the needs of these high-power components. Since the 48V system has the advantages of being able to carry high-power components and reduce vehicle fuel consumption, it has gradually replaced the original 12V system and is used in vehicles. With the application of the 48V system, the rated load of automotive relays has also been increased from the original 12VDC to 48VDC, but the existing automotive relays cannot switch such a large rated voltage and current. [0003] Existing automotive relays usually consist of a m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/64H01H50/54
CPCH01H50/546H01H50/641
Inventor 安吉鹏
Owner 厦门宏发交通电器有限公司
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