Rail Transit High Voltage DC Contactor Manufacturing Method

With the rapid development of the current market industry (new energy vehicles, 4g communication power supply, wind power generation, rail transit), the requirements for the load working voltage of high voltage DC contactors are getting higher and higher, among which the load voltage requirements of high voltage DC contactors for new energy vehicles range from 450v to 600v, the load voltage requirement range of high voltage DC contactor for rail transit is 1500v. In order to solve the problems of power failure and main contact point burning when high voltage DC contactor high load switch, arc extinguishing technology is needed to improve the life of high voltage DC contactor. In addition, there are many rail transit lines, and each line must be equipped with contactors for the power switch system, which is inconvenient to contact and troublesome to install. Because traditional contactors have scattered arcs, many contactors cannot be used in their high-voltage DC power contactors. Arc loss may be caused when switching, and rail transit needs to replace contactors frequently, increasing labor costs and manufacturing costs.

Technical implementation elements:

The purpose of the present invention is to provide a high-voltage DC contactor for rail transit, which solves the problems of arc extinguishing delay of the arc extinguishing cover of the high-voltage DC contactor in the existing contactor technology, damage to the contactor, and complicated installation on rail transit lines.

In the pushing mechanism assembly having a base, a housing, and an assembly housing, the housings are two at the lower end of the contact cell assembly 1. The high-voltage DC contactor for rail transit is fixed on the shell base at the upper end of the pushing mechanism assembly, and the lower end of the partition is welded on the shell

In addition, the force mechanism assembly includes a coil frame, a coil frame, a bracket, an adjusting washer, an electromagnet, a sleeve, an iron core, and a pressure plate arranged in the bracket. The lower end of the coil frame is fixed at the center of the upper end of the base, and the coil frame is a hollow cylinder, and the bobbin sleeve is laminated in the bobbin in this order from below, and the front end of the sleeve is fixed to the core and fixed to the center position of the pressure plate

. It has a base, shell, assembly shell, Press different mechanisms to carry out components and contact some single battery components. In the design of high-voltage control DC motor contactors for rail transit, the pressable mechanism management component needs to be installed at the middle center position of the front end of the base, and the housing is two pieces, 1. A high-voltage DC AC contactor for urban rail transit vehicles, which is mainly characterized by the use of two shell front-end technologies that are fixedly installed on both sides of the lower end of these single building components. The content of the structural unit is set at the front end of the working unit of the force mechanism, contact with other monomer composition unit operations are separated by the partition (8) of multiple enterprises usually according to the assembly shell (6) is 2, and 2 assembly shell) clamping shell (3) front and rear left and right ends. 2. As described in claim 1, the high-voltage DC contactor for rail transit equipment in my country is characterized in that the functional components of the force application unit are composed of a coil frame, a coil frame, a bracket, an adjusting washer, an electromagnet, a sleeve, an iron core, and a push plate. As described in claim 1, for the high-voltage DC contactor for rail transit, the characteristic problem is that, the normally open contact monomer (1) is composed of an arc extinguishing cover (4), a static contact sheet (5), a return spring (20), a movable contact sheet (22), a magnetic blowing device (23), a linkage frame (31), and a contact spring (24). A magnetic blowing system 23 installed in the partition 8 is arranged on the inner circumferential surface of the front end of the static contact sheet 5, at the same time, both ends of the magnetic blowing system 23 are connected with microchip selection switch 7

through the use of partition plate 8. The above introduction is a permanent magnet-driven high voltage DC contactor manufacturing technology capacity. If you need to know more, please feel free to contact us! Our company has many years of experience and looks forward to your joining

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