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High-voltage sealed DC contactor with auxiliary contacts

A technology of DC contactors and auxiliary contacts, which is applied in the direction of relays, electromagnetic relays, and detailed information of electromagnetic relays. It can solve problems such as large space occupation, inconsistency, and impact on contactor functions, and achieve stable working performance and small footprint. Effect

Active Publication Date: 2016-06-15
昆山国力源通新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small stroke of the micro switch in this structure, it is easy to cause the inconsistency between the state of the main contact and the state of the auxiliary contact, which affects the function of the contactor. In addition, since the auxiliary contact is arranged on the side of the main contact, it takes up a relatively large space , it is necessary to reduce the arc extinguishing magnet on one side of the main contact, which is not conducive to the arc extinguishing of the main contact, resulting in unstable breaking performance of the product

Method used

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  • High-voltage sealed DC contactor with auxiliary contacts
  • High-voltage sealed DC contactor with auxiliary contacts
  • High-voltage sealed DC contactor with auxiliary contacts

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Embodiment Construction

[0030] A preferred embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. However, the scope of protection of the present invention is not limited to the following examples, that is, any simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the description are still within the scope of the patent of the present invention.

[0031] refer to Figure 1-9 , a high-voltage sealed DC contactor with auxiliary contacts, comprising a contactor shell 1 with an open upper end and a shielding shell 2 sealed and fixed on the upper port of the contactor shell, the contactor shell and the shielding shell form a The sealed space is provided with a main static contact 3, a moving contact piece 4 for forming two active contacts, and a drive mandrel for driving the moving contact piece to move up and down to open and close with the main static contact 5. The moving cont...

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Abstract

The invention discloses a high-voltage sealed DC contactor with auxiliary contacts. The contactor comprises a contactor casing and a shielding casing, a main static contact, a moving contact sheet and a transmission core rod are arranged in a sealed space formed by the contactor casing and the shielding casing, the moving contact sheet is vertically connected to the upper end portion of the transmission core rod, the upper end surface of the transmission core rod is provided with an auxiliary push rod, the shielding casing is provided with a circular hole at the position corresponding to the auxiliary push rod, and the upper end of the auxiliary push rod penetrates into the circular hole; and the shielding casing is provided with the upper and lower auxiliary contacts, and the auxiliary push rod can drive the lower auxiliary contact to connect with or disconnect from the upper auxiliary contact when moving up and down with the transmission core rod. According to the high-voltage sealed DC contactor with the auxiliary contacts, the auxiliary push rod is arranged at the upper end surface of the transmission core rod, and the upper and lower auxiliary contacts are arranged on the shielding casing, so that the occupation space is very small, it is not required to omit arc extinguishing magnetic steel, and the working performance of the contactor is more stable.

Description

technical field [0001] The invention relates to a high-voltage sealed DC contactor with an auxiliary contact, which replaces the function of a micro switch in the sealed DC contactor as an auxiliary contact. Background technique [0002] When the main contact of the sealed DC contactor is turned on or off, an auxiliary contact is required to be turned on (or disconnected) to determine the state of the main contact, and the state of the main contact is judged through this auxiliary contact Operations, which are used to improve the safety of the product in actual use. In the actual application process, the auxiliary contact turns on and off the small current, which plays the role of turning on and off the signal. At present, due to sealing and design problems, the sealed DC contactors on the market generally do not have auxiliary contacts, and the auxiliary contacts of sealed DC contactors with auxiliary contacts generally adopt micro switches in the arc extinguishing chamber...

Claims

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Application Information

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IPC IPC(8): H01H50/54
CPCH01H50/541
Inventor 覃奀垚张承盛吴芳
Owner 昆山国力源通新能源科技有限公司
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