CN2210461Y

CN2210461Y - Switch for power supply

Info

Publication number: CN2210461Y
Application number: CN 94231363
Authority: CN
Inventors: 薛闻
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-30
Filing date: 1994-11-30
Publication date: 1995-10-18
Anticipated expiration: 2004-11-30

Abstract

The utility model discloses a switch for a power supply, which is composed of an upper insulating plate, a lower insulating plate, a moving contact, a static contact, brass connecting plates, etc. The upper insulating plate and the lower insulating plate are box shapes which are mutually occlusive. Two sides of the partition plate of the upper insulating plate are static contacts. The two sides of the partition plate of the lower insulating plate are moving contacts. Fuse is connected between the brass connecting plates. The moving and static contacts are inserted between the brass connecting plates. The utility model has the advantages of simple structure, convenient operation, low cost, easy fabrication, high safety, convenient fuse changing and high strength. The utility model is suitable for uses on a two-phrase power supply and a three-phrase power supply.

Description

Switch for power supply

The utility model belongs to the switching technique field, is a kind of mains switch.

At present, two-phase and three phase mains all adopt the disconnecting link switch, the shortcoming of this switch is, intensity is low, and is easily broken, easily gets an electric shock, and uses dangerously, change of fuse bothers.

The purpose of this utility model provides a kind of intensity height, and safe and reliable, change of fuse is easy, the mains switch that cost is low.

The purpose of this utility model is achieved in that it is made up of upper insulation plate, lower insulation plate, fixed contact, moving contact, brass connecting plate, fuse, upper and lower insulation board is a box-like, the mutual interlock in box four limits, there is dividing plate the centre, in upper insulation plate dividing plate both sides fixed contact is housed, is connected with lead, moving contact is housed in lower insulation plate dividing plate both sides by the brass connecting plate, connect fuse between the brass sheet, dynamic/static contact is pegged graft.

The utility model is simple in structure, esy to use, safe and reliable, and it is convenient to change fuse, and cost is low, make easily, and the intensity height, good insulation preformance is applicable to that two-phase and three phase mains use.

Below in conjunction with accompanying drawing the utility model is done further auspicious stating.

Fig. 1 is the utility model upper insulation plate structural representation.

Fig. 2 is the utility model lower insulation plate structural representation.

Fig. 3 is the utility model schematic appearance.

Fig. 4 is the utility model threephase switch schematic appearance.

Fig. 5 is the A-A cutaway view of the utility model Fig. 3.

Fig. 6 is the B-B cutaway view of the utility model Fig. 4.

Label is described as follows among Fig. 1-Fig. 6: 1, lead; 2, upper insulation plate; 3, screw; 4, brass connecting plate; 5, fixed contact; 6, screw; 7, dividing plate; 8, screw; 9, moving contact; 10, brass connecting plate; 11, screw; 12, fuse; 13, lower insulation plate; 14, dividing plate; 15, lead.

As shown in the figure, upper and

lower insulation board

2,13 is a box-like, the mutual interlock in box four limits, there is dividing

plate

7,14 centre, in upper insulation plate 2 dividing plates 7 both sides fixed contact 5 is housed, is connected with lead 1, moving contact is housed in lower insulation plate 13 dividing plates 14 both sides by brass connecting plate 4 one ends, connect fuse 12 between the brass connecting plate 10, fixed contact 5 and moving contact 9 are pegged graft.

Embodiment 1, can adopt lower insulation plate, four pairs of dynamic and static contacts are housed, be connected with lead by the brass connecting plate in its dividing plate both sides, this structure is used for the 220V power supply, during as short trouble, can pull up lower insulation plate, break away from power supply, after loading onto fuse, insert upper insulation plate, the mutual interlock in plate four limits, dynamic/static contact can accurately insert.

Embodiment 2, can adopt lower insulation plate, in its dividing plate both sides six pairs of dynamic and static contacts are installed, and are connected with lead by the brass connecting plate, and this structure is used for the 380V power supply.

Claims

1, a kind of mains switch, it is made up of upper insulation plate, lower insulation plate, fixed contact, moving contact, brass connecting plate, fuse, it is characterized in that last lower insulation plate is a box-like, the mutual interlock in box four limits, there is dividing plate the centre, in upper insulation plate dividing plate both sides fixed contact is housed, is connected with lead, moving contact is housed in lower insulation plate dividing plate both sides by the brass connecting plate, connect fuse between the brass connecting plate, dynamic and static contact is pegged graft.