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Intelligent high-voltage DC contactor

A high-voltage DC, contactor technology, used in instruments, relays, electromagnetic relays, etc., can solve the problem of asynchronous auxiliary contacts and actuators, and achieve the effect of improving anti-surge interference, ensuring system safety, and reducing failure rates.

Inactive Publication Date: 2017-08-04
蚌埠市双环电子集团股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the DC high-voltage contactor with auxiliary contacts also had adhesion phenomenon, the reason was that the auxiliary contacts were out of sync with the actuator and no alarm was reported.

Method used

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  • Intelligent high-voltage DC contactor

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Embodiment Construction

[0013] combine figure 1 and figure 2 As shown, the present invention provides an intelligent high-voltage DC contactor, including a housing 1, in which a main contact K1, an electromagnetic drive unit 2, and an actuator 3 are provided; in the housing 1, a adhesion detection control unit is also provided 4. The adhesion detection control unit 4 includes MCU module U1, contactor energy-saving control module U2, triode Q1, photocoupler U5, relay K2, remote communication module U3 and voltage stabilizing module U4 that provides regulated power supply; the positive pole and negative pole of the working power supply Connect to the input terminal of the voltage stabilizing module U4 through the inductors L1 and L2 respectively, and the voltage stabilizing module U4 outputs a stable voltage of 5V; the output interface of the MCU module U1 is connected to the base of the transistor Q1 through the resistor R11, and the collector of the transistor Q1 passes through the diode D9 Connect...

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Abstract

The invention discloses an intelligent high-voltage DC contactor, which comprises a shell, and is characterized in that the shell is internally provided with a main contact, an electromagnetic driving unit, an execution mechanism and an adhesion detection control unit, the adhesion detection control unit comprises an MCU module, a contactor energy-saving control module, a triode switching circuit, a photoelectric coupler, a relay, a remote communication module and a voltage stabilization module used for providing a stabilized power supply, the MCU module judges whether the main contact is adhered or not according to high / low level fed back by the photoelectric coupler, an alarm signal is sent to the remote communication module if the main contact is adhered, and the remote communication module sends the alarm signal to an upper computer; and if the main contact is not adhered, the electromagnetic driving unit is enabled normally through the contactor energy-saving control module, and then the execution mechanism drives the main contact to close or open. The intelligent high-voltage DC contactor realizes self diagnosis of a DC high-voltage product, the failure rate is effectively reduced, and the system security is ensured.

Description

technical field [0001] The invention relates to the field of DC high-voltage components, in particular to an intelligent high-voltage DC contactor. Background technique [0002] Under the pressure of energy and environmental protection, new energy vehicles will undoubtedly become the development direction of future automobiles. The industry's demand for DC high-voltage contactors is on a straight-line upward trend. When high voltages are involved, safety issues cannot be avoided. In the actual use of DC high-voltage contactors, over-burning occurs. Analyzing the reasons, it is mainly due to factors such as contact heating and adhesion of the contactor that cause product failure or cause safety accidents. However, some products of existing DC high voltage contactors have auxiliary contacts, and some products do not have auxiliary contacts. The accident rate of DC high voltage contactors without auxiliary contacts is higher. After the DC high-voltage contactor with auxili...

Claims

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Application Information

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IPC IPC(8): G01R31/327H01H50/08
CPCG01R31/3272H01H50/08
Inventor 马武坤靳融王宁金建领张磊
Owner 蚌埠市双环电子集团股份有限公司
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