CN202423143U

CN202423143U - Electromagnetic switching device

Info

Publication number: CN202423143U
Application number: CN201120561605XU
Authority: CN
Inventors: 胡志明; 刘超儒
Original assignee: SENTAI GROUP CO Ltd
Current assignee: SENTAI GROUP CO Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-09-05
Anticipated expiration: 2021-12-29

Abstract

The utility model relates to an electromagnetic switching device which comprises an arc extinguishing system, a main circuit system, an electromagnetic operation system and a mounting base, wherein the structure of the main circuit system is as follows: a moveable contact bridge is connected with the front end of a contact supporter; a fixed contact is arranged behind the moveable contact bridge; the fixed contact is connected with a contact plate; the contact plate is arranged on a fixed base; the contact supporter is connected with a moveable iron core; a fixed iron core is arranged relative to the moveable iron core; the fixed iron core is mounted on the base; an electromagnetic coil is arranged on the periphery of the fixed iron core; a counterforce spring is arranged on the contact supporter; and when the moveable contact bridge is attracted to the fixed contact, the counterforce spring is under compressed state. The electromagnetic switching device has the beneficial effects that: an electromagnetic switch (called as switch for short) for controlling and protecting the switching device is mainly used for connecting and disconnecting a circuit, extinguishing arc and performing the instruction of a controller, and is also singly used as an alternating current contactor for controlling the connecting and disconnecting operation of the circuit; the breaking capacity is strong; and the arc extinguishing effect is excellent.

Description

A kind of electromagnetic switch electrical equipment

Technical field

The utility model relates to a kind of device for switching, particularly a kind of electromagnetic switch electrical equipment.

Background technology

Device for switching mainly is used for connection, carrying and disjunction circuital current, generally uses as control and the part of protection switch electrical equipment, a part or the A.C. contactor of starting electrical equipment, adopts the Electromagnetically-operating system usually.Existing device for switching, breaking capacity are not strong, and arc quenching effect is bad.

Summary of the invention

To the deficiency of prior art, the utility model provides a kind of novel electromagnetic device for switching.

To achieve these goals, the technical scheme taked of the utility model is:

A kind of electromagnetic switch electrical equipment comprises arc quenching system, main circuit system, Electromagnetically-operating system and mounting seat, and the structure of main circuit system is: the movable contact bridging is connected on the front end of contact supporter; The rear of movable contact bridge is provided with fixed contact, and fixed contact links to each other with contact plate, and contact plate is arranged on the fixed pedestal; The contact supporter links to each other with moving iron core, is relatively set with static iron core with moving iron core, and static iron core is installed on the base; Be provided with solenoid around the static iron core; The contact supporter is provided with reaction spring, and when movable contact bridge and fixed contact adhesive, reaction spring is in compressive state.

All adopt two pairs of dynamic/static contacts in each circuitry phase of electromagnetic switch electrical equipment, form two breakpoints.

Mounting seat comprises the pillar of base and structural support.

The beneficial effect of the utility model: control mainly is used for connecting the branch deenergizing with the electromagnetic switch (abbreviation switch) of protection switch electrical equipment; Extinguish arcs; Accomplish the instruction of controller, also can use as A.C. contactor separately, be used for the make-break operation of control circuit.Switch can be connected, the electric current of (overload condition that comprises regulation) under carrying and the disjunction normal condition in operating process, and can connect, carry at the appointed time and the non-normal condition of disjunction regulation under electric current (like short circuit current).Breaking capacity is strong, and arc quenching effect is good.

Description of drawings

The vertical view of Fig. 1, the utility model;

The A-A of Fig. 2, Fig. 1 is to view;

Fig. 3, Fig. 4 are respectively two outline drawings of the utility model.

Embodiment

The utility model control and protection switch electrical equipment are mainly used in and exchange 50Hz or 60Hz, rated operational voltage 380V and following, rated operational current to the power circuit of 85A; Be used to circuit or motor control and protection are provided, be widely used in electric drive system, industrial automation control system, low voltage power distribution network etc.

The utility model switch mainly partly is made up of arc quenching system, main circuit system, Electromagnetically-operating system, mounting seat etc.

Main circuit system comprises contact, binding post, contact support and pedestal etc., connects, closes the main devices of branch action as switching circuit.

Switch adopts the direct drive type electro magnetic system as operating mechanism, drives the contact motion to connect and the disjunction main circuit, and contact adopts the Direct Action Type double-breakpoint structure.

After the electromagnetic system energising, the iron core adhesive, traction contact support action, the movable contact bridge is quick and fixed contact is closed, connects circuit; After electromagnetic system outage, iron core separates, contact support action, and the movable contact bridge breaks off with fixed contact fast, the electric arc that arc quenching system extinguishes dynamic/static contact to be produced when separating, branch deenergizing.

Control is made up of electromagnetic switch and intelligent controller with protection switch electrical equipment, and intelligent controller is through make-break operation and the defencive function of control operation switch with the realization circuit.

Shown in accompanying drawing, switch mainly is assembled into an integral body by arc quenching system I, main circuit system II, the III of Electromagnetically-operating system, mounting seat IV etc.

Arc quenching system mainly contains arc control device 1 and is used for extinguish arcs; Main circuit system mainly contains movable contact bridge 2, fixed contact 3, contact plate 4, contact supporter 5, fixed pedestal 6; Movable contact bridge 2 under the contact supporter drives, moves up and down with linear fashion and fixed contact closes branch; On-off circuit, dynamic/static contact adopts the double break dot structure, and breaking capacity is strong, contact is reliable; The Electromagnetically-operating system mainly contains upper core (moving iron core 7), lower core (static iron core 8), solenoid 9, reaction spring 10; After the solenoid energising; Iron core produces magnetic flux suction, and the traction contact is supported the adhesive campaign, after the solenoid outage; Iron core magnetic force disappears, contact supporter disjunction campaign under the promotion of reaction spring; Mounting seat mainly contains the pillar 12 of base 11, structural support.

Arc quenching system mainly contains arc control device 1 and is used for extinguish arcs; Main circuit system mainly contains movable contact bridge 2, fixed contact 3, terminal block 4, contact support 5, fixed pedestal 6; The movable contact bridge under the contact support drives, moves up and down with linear fashion and fixed contact closes branch; On-off circuit, dynamic/static contact adopts the double break dot structure, and breaking capacity is strong, contact is reliable; The Electromagnetically-operating system mainly contains the moving iron core 7 of upper core, lower core static iron core 8, solenoid 9, reaction spring 10; After the solenoid energising; Iron core produces magnetic flux suction, and the traction contact is supported the adhesive campaign, after the solenoid outage; Iron core magnetic force disappears, contact supporter disjunction campaign under the promotion of reaction spring 10.

Claims

1. an electromagnetic switch electrical equipment comprises arc quenching system (I), main circuit system (II), Electromagnetically-operating system (III) and mounting seat (IV), it is characterized in that; The structure of main circuit system (II) is: movable contact bridge (2) is connected the front end of contact supporter (5), and the rear of movable contact bridge (2) is provided with fixed contact (3), and fixed contact (3) links to each other with contact plate (4); Contact plate (4) is arranged on the fixed pedestal (6); Contact supporter (5) links to each other with moving iron core (7), is relatively set with static iron core (8) with moving iron core (7), and static iron core (8) is installed on the base (11); Be provided with solenoid (9) around the static iron core (8); Contact supporter (5) is provided with reaction spring (10), and when movable contact bridge (2) and fixed contact (3) adhesive, reaction spring (10) is in compressive state.

2. a kind of electromagnetic switch electrical equipment as claimed in claim 1 is characterized in that, all adopts two pairs of dynamic/static contacts in each circuitry phase of electromagnetic switch electrical equipment, forms two breakpoints.

3. according to claim 1 or claim 2 a kind of electromagnetic switch electrical equipment is characterized in that mounting seat (IV) comprises the pillar (12) of base (11) and structural support.