CN201323137Y

CN201323137Y - Concave-convex semicircular electric contact

Info

Publication number: CN201323137Y
Application number: CNU200820135574XU
Authority: CN
Inventors: 包云峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-01
Filing date: 2008-09-01
Publication date: 2009-10-07
Anticipated expiration: 2018-09-01

Abstract

The utility model relates to a concave-convex semicircular electric contact, wherein a surface contact area thereof is bigger than that of a round electric contact or a square electric contact. The electric contact has the advantages of small size, large contact area and no transversal movement. The convex semicircular movable contact and the concave semicircular break contact are in tight contact (closed), can be riveted and welded on a fixed bracket of a switching electric appliance, and can be placed interactively. The sizes, the surface contact areas and the fixing methods of the movable contact and the break contact can be decided through computing based on the used switching electric appliance and loading.

Description

Concavo-convex semicircle electric contact

Affiliated technical field

The utility model relates to the electric contact unit of connecting and disconnecting circuit in a kind of circuit, and the volume small area of contact is big, has saved nonferrous materials; Contact and firmly laterally do not move, be not easy to ablate, so can prolong the useful life of electric contact effectively.

Background technology

At present, in the A.C. contactor that in alternating current circuit and DC circuit, is widely used, automatic air-break switch, circuit breaker, thermal relay, relay and all the Switch electrical equipment, electric contact is made up of moving contact and fixed contact, but the moving contact of present existing electric contact and fixed contact all are circular and square, contact-making surface is convexo-convex shape and plane, can not utilize the contact area of the moving contact and the fixed contact of electric contact to greatest extent, and easily horizontal shift position, cause contact area to reduce, ablate easily; Volume is big, has wasted nonferrous materials.

Summary of the invention

For solve existing electric contact volume big and effectively little, the electric contact of contact area cause contact area to reduce the problem of ablation easily because of laterally moving, the utility model provides a kind of electric contact, prolong the useful life of electric contact when can not only address the above problem effectively, save non-ferrous metal.

The technical scheme that its technical problem that solves the utility model adopts is: the fixed contact of electric contact adopts the spill semi-circular shape, moving contact adopts and the point-symmetric convex semi-circular shape of stationary contact, the convex moving contact enters in the spill fixed contact and forms cylinder in the time of dynamic and static contact contact (closure), so circuit is switched on state.The surface area of the circle cross-section of well-known same diameter is much smaller more than the semicircular body surface area; The semicircular body surface area is also much bigger than the square cross section surface area of equal volume.So it is big and contact area is little, laterally move, ablate easily, useful life is short, the problem of waste non-ferrous metal that concavo-convex semicircle electric contact can solve volume that cylinder and square body electric contact exist effectively.

The beneficial effects of the utility model are, volume is little, contact area is big, thereby has saved non-ferrous metal, contact firmly laterally not move, and are not easy to ablate, thereby can prolong the useful life of electric contact effectively, and are simple in structure.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the moving contact front view of the concavo-convex semicircle electric contact of the utility model riveted joint type.

Fig. 2 is the moving contact vertical view of the concavo-convex semicircle electric contact of the utility model riveted joint type.

Fig. 3 is the moving contact left view of the concavo-convex semicircle electric contact of the utility model riveted joint type.

Fig. 4 is the fixed contact front view of the concavo-convex semicircle electric contact of the utility model riveted joint type.

Fig. 5 is the fixed contact vertical view of the concavo-convex semicircle electric contact of the utility model riveted joint type.

Fig. 6 is the fixed contact left view of the concavo-convex semicircle electric contact of the utility model riveted joint type.

Fig. 7 is the moving contact with the concavo-convex semicircle electric contact of contact frame riveted joint.

Fig. 8 is the fixed contact with the concavo-convex semicircle electric contact of contact frame riveted joint.

Fig. 9 is Fig. 7 and Fig. 8 closure state figure.

Figure 10 is the moving contact front view of the concavo-convex semicircle electric contact of solder type.

Figure 11 is the moving contact vertical view of the concavo-convex semicircle electric contact of solder type.

Figure 12 is the moving contact left view of the concavo-convex semicircle electric contact of solder type.

Figure 13 is the fixed contact front view of the concavo-convex semicircle electric contact of solder type.

Figure 14 is the fixed contact vertical view of the concavo-convex semicircle electric contact of solder type.

Figure 15 is the fixed contact left view of the concavo-convex semicircle electric contact of solder type.

Figure 16 is the moving contact with the concavo-convex semicircle electric contact of contact frame welding.

Figure 17 is the fixed contact with the concavo-convex semicircle electric contact of contact frame welding.

Figure 18 is Figure 16 and Figure 17 closure state.

Figure 19 is the riveted joint frame front view of the dynamic and static contact of the concavo-convex semicircle electric contact of riveted joint type.

Figure 20 is the riveted joint frame vertical view of the dynamic and static contact of the concavo-convex semicircle electric contact of riveted joint type.

Figure 21 is the riveted joint frame left view of the dynamic and static contact of the concavo-convex semicircle electric contact of riveted joint type.

Figure 22 is the weld holder front view of the dynamic and static contact of the concavo-convex semicircle electric contact of solder type.

Figure 23 is the weld holder vertical view of the dynamic and static contact of the concavo-convex semicircle electric contact of solder type.

Figure 24 is the weld holder left view of the dynamic and static contact of the concavo-convex semicircle electric contact of solder type.

Embodiment

The circular hole of the riveted joint frame of the dynamic and static contact of the concavo-convex semicircle electric contact of the moving contact top small cylinder of the concavo-convex semicircle electric contact of Fig. 1 and Figure 19 riveted joint type is riveted the moving contact of the concavo-convex semicircle electric contact that forms Fig. 7 and the riveted joint of contact frame in Fig. 9; The circular hole of the fixed contact bottom small cylinder of the concavo-convex semicircle electric contact of Fig. 6 and the riveted joint frame of the dynamic and static contact of the concavo-convex semicircle electric contact of Figure 19 riveted joint type is riveted the fixed contact of the concavo-convex semicircle electric contact that forms Fig. 8 and the riveted joint of contact frame.The moving contact of the concavo-convex semicircle electric contact of Fig. 7 and contact frame riveted joint enters in the fixed contact of the concavo-convex semicircle electric contact that Fig. 8 and contact frame rivet and forms Fig. 9, Fig. 7 and Fig. 8 closure state figure, and circuit is switched on.Circuit is disconnected when Fig. 7 and Fig. 8 state.

The moving contact of the concavo-convex semicircle electric contact that forms Figure 16 and the welding of contact frame is welded in the weld holder of the dynamic and static contact of the concavo-convex semicircle electric contact of the moving contact upper plane of the concavo-convex semicircle electric contact of Figure 10 solder type and Figure 22 solder type bottom in Figure 18; The fixed contact of the concavo-convex semicircle electric contact that forms Figure 17 and the welding of contact frame is welded in the bottom of the weld holder of the dynamic and static contact of the concavo-convex semicircle electric contact of the base plane of the fixed contact of the concavo-convex semicircle electric contact of Figure 13 solder type and Figure 22 solder type.The moving contact of the concavo-convex semicircle electric contact of Figure 16 and contact frame welding enters in the fixed contact of the concavo-convex semicircle electric contact that Figure 17 and contact frame weld and forms Figure 18, Figure 16 and Figure 17 closure state, and circuit is switched on state.Circuit is disconnected state when Figure 16 and Figure 17 state.

The concrete size of concavo-convex semicircle electric contact, surperficial contact area, fixed form are calculated decision according to employed concrete Switch electrical equipment and concrete load size.

Claims

1. electric contact is applied in the circuit in the Switch electrical equipment, and it is characterized in that: the moving contact of electric contact is the convex semicircle, and fixed contact has and the point-symmetric spill semi-circular hole of movable contact.