CN201332063Y

CN201332063Y - An electromagnetic contactor arc extinguishing system for dragging

Info

Publication number: CN201332063Y
Application number: CNU2009200630208U
Authority: CN
Inventors: 钱明华; 刘军湘
Original assignee: Xiangtan Electric Manufacturing Co Ltd
Current assignee: Xiangtan Electric Manufacturing Co Ltd
Priority date: 2009-01-21
Filing date: 2009-01-21
Publication date: 2009-10-21
Anticipated expiration: 2019-01-21

Abstract

An electromagnetic contactor arc extinguishing system for dragging includes an arc extinguishing box, a stationary contact and a movable contact, a lower arc angle, a blow-out coil, a bush, a coil iron core, an iron core, an upper arc angle, a polar plate. The system is characterized in that the lower arc angle and the upper arc angle are installed in the arc extinguishing box, an end of the lower arc angle is soldered with a blow-out coil, a coil iron core is installed in the blow-out coil, two polar plates are respectively fixed on shaft end face of the coil iron core and the iron core, the stationary contact, the movable contact, the coil and the post rod are installed on body of the electromagnetic contactor. The utility model has advantages of few copper product consumption, simple machining convenient installation and maintenance.

Description

A kind of power for traction magnetic contactor arc quenching system

Technical field

The utility model relates to a kind of power for traction magnetic contactor arc quenching system.

Background technology

But electromagnetic contactor is electric elements of using the big capacity frequent movement of bearing main circuit connection, break function very widely in the rail vehicle fields such as subway, light rail car, tramcar, drive contact system by electromagnetic mechanism, the switching action of control main contact.

The arc quenching system that is used to the electromagnetic contactor in the field of drawing at present, following arc angle and blow-out coil and moving contact are linked together, last arc angle and fixed contact link together, like this as long as connect circuit, following arc angle, blow-out coil, fixed contact, moving contact are exactly same current potential body, flow through main circuit current in the blow-out coil, current strength is big, cause the cross-sectional area of blow-out coil very big, make difficulty, and, because blow-out coil need use the very big copper bar processing coiling of cross-sectional area, thereby to expend a large amount of high-quality precious metal copper materials.Initial estimate, a capacity is that 800A, direct voltage are the electromagnetic contactor of 750V, need to consume the high-quality copper material about 7Kg, this will cause following problem: (1) is because of using the long-pending copper material coiling in heavy in section, so processed complex: at first a side of copper bar coil inner edge must be milled out the inclined-plane so that coiling and prevent circle and circle between short circuit, then will be with special particular manufacturing craft, coiling moulding on the high pulling torque lathe, and all need annealing in process before and after the coiling; (2) because of the blow-out coil copper consumption is big, electromagnetism contact weight is increased, overall dimension strengthens, and the space that contactor is installed also need be increased, and this is to this very limited body frame just of installing space, is unusual difficulty sometimes; (3) the copper material consumption reaches processed complex greatly, directly causes product cost to increase.

The utility model content

The purpose of this utility model is to provide a kind of copper material consumption few, makes processing simply, traction electromagnetic contactor arc quenching system convenient for installation and maintenance.

The technical solution of the utility model is: it comprises arc extinguishing box, fixed contact, moving contact, following arc angle, blow-out coil, lining, iron-core coil, iron core, goes up arc angle, pole plate, following arc angle and last arc angle are installed in the arc extinguishing box, one end of following arc angle is welded with blow-out coil, iron-core coil is contained in the middle of the blow-out coil, two-plate is separately fixed on the axial end of iron-core coil and iron core, and fixed contact, moving contact, coil and push rod are installed on the electromagnetic contactor body.

Described blow-out coil is made up of the pipe box that has breach, arc angle, coil; End in two leading-out terminals of coil and pipe box welding, the other end and arc angle welding.

The described arc angle that goes up is connected to form by screw by arc angle, long arc angle.

The described arc angle that goes up should be installed in arc extinguishing box inner chamber top.

Described arc angle down and blow-out coil should be installed in arc extinguishing box inner chamber below.

All parts of the utility model arc quenching system are installed in respectively on arc extinguishing box and the electromagnetic contactor body, and last arc angle, following arc angle directly do not link to each other reliable breaking, stable performance with fixed contact, moving contact; When the electromagnetic contactor operate as normal was connected circuit, the obstructed electric current of blow-out coil was only when the circuit disjunction, produce the moment of electric arc between main contact, blow-out coil is by big electric current, but this time is very short, so coil section is long-pending can be very little, like this, greatly saved the high-quality copper material; Because the blow-out coil cross section is very little, can manual coiling, it is simple to make processing; Alleviate weight greatly and reduced volume; For above-mentioned reasons, the production cost has also reduced effectively.

Description of drawings

The structural representation of Fig. 1 the utility model one embodiment;

Fig. 2 is the structural representation of blow-out coil embodiment illustrated in fig. 1;

Fig. 3 is that the C of blow-out coil shown in Figure 2 is to view;

Fig. 4 is a front view of going up arc angle shown in Figure 1;

Fig. 5 is a vertical view of going up arc angle shown in Figure 4.

Among the figure: 1. arc extinguishing box; 2. fixed contact; 3. moving contact; 4. descend arc angle; 5. blow-out coil; 6. lining; 7. iron-core coil; 8. coil; 9. push rod; 10. be flexible coupling; 11. installation portion; 12. tagblock; 13. it is unshakable in one's determination; 14. last arc angle; 15. pole plate; 16. pipe box; 17. arc angle; 18. coil; 19. arc angle; 20. arc angle; 21. screw.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

With reference to accompanying drawing 1: present embodiment comprises arc extinguishing box 1, fixed contact 2, moving contact 3, following arc angle 4, blow-out coil 5, lining 6, iron-core coil 7, iron core 13, last arc angle 14, pole plate 15, following arc angle 4, last arc angle 14 is installed in arc extinguishing box 1 inner chamber top, following arc angle 4 and blow-out coil 5 are installed in arc extinguishing box 1 inner chamber below, one end of following arc angle 4 is welded with blow-out coil 5, iron-core coil 7 is contained in the middle of the blow-out coil 5, pole plate 15 has two, be separately fixed on the axial end of iron-core coil 7 and iron core 13 fixed contact 2, moving contact 3, coil 8 and push rod 9 are installed on the electromagnetic contactor body; 1 fen left and right chamber of arc extinguishing box forms with the compacting of insulating material DMC material respectively.

With reference to Fig. 2, Fig. 3, Fig. 4, blow-out coil 5 is made of pipe box 16, arc angle 17, coil 18; Wherein pipe box 16 has the breach of about 6mm for ease of installing and locating; Even spraying plating has the insulation bisque between circle and the circle, and welds with pipe box 16 and arc angle 17.The centering welding up and down of the last leading-out terminal of pipe box 16 and coil 18, and the alignment welding of the lower wire end of arc angle 17 and coil 18 bottom.

With reference to accompanying drawing 4, Fig. 5: go up arc angle 14 and be installed in arc extinguishing box 1 inner chamber top, last arc angle 14 is linked and packed by arc angle 19 and long arc angle 20 usefulness screws and forms.

Claims

1. power for traction magnetic contactor arc quenching system, comprise arc extinguishing box, fixed contact, moving contact, following arc angle, blow-out coil, lining, iron-core coil, iron core, go up arc angle, pole plate, it is characterized in that: following arc angle, last arc angle are installed in the arc extinguishing box, one end of following arc angle is welded with blow-out coil, iron-core coil is contained in the middle of the blow-out coil, two-plate is separately fixed on the axial end of iron-core coil and iron core, and fixed contact, moving contact, coil and push rod are installed on the electromagnetic contactor body.

2. power for traction magnetic contactor arc quenching system according to claim 1, it is characterized in that: blow-out coil is made up of the pipe box that has breach, arc angle, coil, end in two leading-out terminals of coil and pipe box welding, the other end and arc angle welding.

3. power for traction magnetic contactor arc quenching system according to claim 1 is characterized in that: go up arc angle and connected to form by screw by arc angle and long arc angle.

4. power for traction magnetic contactor arc quenching system according to claim 1 is characterized in that: go up arc angle and be installed in arc extinguishing box inner chamber top.

5. power for traction magnetic contactor arc quenching system according to claim 1 is characterized in that: following arc angle and blow-out coil are installed in arc extinguishing box inner chamber below.