CN201156475Y

CN201156475Y - Cut-out switch

Info

Publication number: CN201156475Y
Application number: CNU2008200918070U
Authority: CN
Inventors: 龙彦丞
Original assignee: Mile Marker Automotive Electronics (ShenZhen) Ltd
Current assignee: TJM Shenzhen Ltd.
Priority date: 2008-01-18
Filing date: 2008-01-18
Publication date: 2008-11-26
Anticipated expiration: 2018-01-18

Abstract

The utility model discloses an isolating switch, which comprises a handle, a propulsion device connected with the handle, a contact block and a wiring spiral column; wherein, the propulsion device tightly resists the contact block; a reset elastic element is arranged between the contact block and the wiring spiral column; the contact block is provided with a block contact; the block contact is matched with a spiral column contact arranged on the wiring spiral column. The propulsion device comprises a housing which is arranged on a rotation axis inside the housing; the rotation axis is matched with a slide groove; a slide block is blocked in the slide groove; the housing is internally provided with a slope; the slope tightly resists the slide block; the gradient of the slope gradually transits from low to high; the highest point of the slope is provided with a pit. The isolating switch solves the problem of large pressing force by manually controlling the close of the switch, thus being applicable to the occasions with heavy current.

Description

Cut off switch

Technical field

The utility model relates to the automobile power supply switch field, relates in particular to a kind of switch that is used to cut off.

Background technology

Cutting off switch and be used for being widely used in Electric Traction, is a kind of control apparatus that is used for automatically being switched on or switched off high-current circuit, can frequently connect, disconnect load, and the decompression turn-off function is arranged.

Existing cut-out switch adopts the disconnection or the closure of solenoid-operated switch, comprises electromagnetic core and sheathed thereon coil, when energising, produces magnetic force, and magnetic force promotes to make the contact at the two poles of the earth or contact be in contact with one another circuit turn-on; When but the thrust of electromagnet is less, cause between the contact contact bad easily, break down easily, equipment is caused damage.Simultaneously Electromagnetic Control is cut off the occasion that switch is applicable to little electric current, when electric current at 500 ampere-hours, can't meet the demands.

The utility model content

Technical problem to be solved in the utility model is, a kind of cut-out switch is provided, and utilizes the closure of hand control switch, and thrust is big, is applicable to the occasion of big electric current.

In order to solve the problems of the technologies described above, embodiment of the present utility model provides a kind of cut-out switch, comprising: handle, the propulsion plant that is connected with described handle; Also comprise contact block and wiring helical post, described propulsion plant holds out against described contact block, be provided with reseting elastic element between described contact block and the described Binding post/stud, described contact block is provided with the piece contact, described contact is provided with the double-screw bolt contact with described Binding post/stud and cooperates suitable, described propulsion plant comprises: housing, be installed in the rotating shaft of described enclosure interior, described rotating shaft cooperates with chute, slide block is fastened in the described chute, is provided with domaticly in the described housing, and described domatic and described slide block holds out against, the transition gradually from low to high of the described domatic gradient, described domatic peak place is provided with pit.

The cut-out switch of manual control, thrust is big, and the piece contact is closely contacted with the double-screw bolt contact, and the setting of peak pit makes to contact between the contact and stablizes.

Description of drawings

Fig. 1 is the blast structural representation that the utility model embodiment cuts off switch;

Fig. 2 a is the front view that the utility model embodiment cuts off the housing of switch;

Fig. 2 b is the profile of B-B face among Fig. 2 a;

Fig. 3 is the perspective view that the utility model embodiment cuts off the chute of switch;

Fig. 4 is the perspective view that the utility model embodiment cuts off the slide block of switch.

Embodiment

Below with reference to accompanying drawing preferred embodiment of the present utility model is described.In the accompanying drawing of institute's reference, same or analogous parts use identical drawing reference numeral to represent among the different figure.

Referring to Fig. 1, cut off the blast structural representation of switch for embodiment in the utility model.This cut-out switch comprises: handle 10, the propulsion plant that is connected with handle 10, propulsion plant comprises, housing 20 is installed in the rotating shaft (figure do not show) of housing 20 inside, rotating shaft cooperates with chute 30, slide block 40 is fastened in the chute 30, is provided with domatic 22 (as Fig. 2 b) in the housing 20, and domatic 22 hold out against with slide block 40, domatic 22 the gradient is transition gradually from low to high, and domatic 22 peak 21 (as Fig. 2 b) locates to be provided with pit (figure does not show); Also comprise contact block 50, slide block 40 holds out against contact block 50, and contact block 50 is installed on the contact block fixed mount 70, is equiped with holddown spring 60 in the contact block fixed mount 70, holddown spring 60 is used for contact block 50 is held out against at slide block 40, thereby slide block 40 is held out against with domatic 22; Be provided with reseting elastic element 95 between contact block fixed mount 70 and the Binding post/stud 90, reseting elastic element 95 is installed in the housing base 80; Contact block 50 is provided with piece contact 51, and Binding post/stud 90 is provided with double-screw bolt contact 91, and piece contact 51 cooperates suitable with double-screw bolt contact 91.

In the present embodiment, when the user clockwise rotates handle 10, handle 10 drives the rotating shaft rotation of propulsion plant, rotating shaft drives chute 30 and rotates, in slide block 40 in the chute 30 and the housing 20 domatic 22 holds out against, because domatic 22 is transition gradually from low to high, when slide block 40 rotates with chute 30, slide block 40 slides to peak 21 along domatic 22 minimum point, domatic 22 with the bearing of trend release of slide block 40 along rotating shaft, slide block 40 promotes contact block 50 forward simultaneously, contact block 50 compression reseting elastic elements 95, and close to Binding post/stud 90; Reseting elastic element 95 constantly is compressed, and contacts 91 up to piece contact 51 with the double-screw bolt contact, and this moment, slide block 40 also arrived domatic 22 peak 21, when slide block 40 arrives domatic 22 peak 21, falls in the pit of peak 21; Handle 10 can't be again to clockwise rotating, and keep in touch piece contact 51 and double-screw bolt contact 91, cuts off switch closure, circuit turn-on this moment.

When the user need cut off the switch disconnection, to being rotated counterclockwise, slide block 40 is skidded off from pit 22 on handle 10, slide block 40 is got back to domatic 22 minimum point, bearing of trend withdrawal along rotating shaft, contact block 50 is also withdrawn, and discharges the pressure to reseting elastic element 95, reseting elastic element 95 resiliences, contact block 50 and Binding post/stud 90 are separated, thereby piece contact 51 and double-screw bolt contact 91 are separated, cut off switch this moment and disconnect, circuit disconnects.

The cut-out switch of manual control, thrust is big, and piece contact 51 is closely contacted with double-screw bolt contact 91, the setting of peak pit 22, it is stable that 91 of piece contact 51 and double-screw bolt contacts are contacted.

In the present embodiment, also be provided with sealing gasket 23 between housing 20 and the chute 30, play the function of water-tight, be equiped with the effect that sealing ring 65 plays water-tight equally on this external contact block fixed mount 70.

Referring to Fig. 3,4, Fig. 3 cuts off the perspective view of switch embodiment chute for the utility model, and Fig. 4 cuts off the perspective view of switch embodiment slide block for the utility model.Have groove 31 on the cell wall 32 of chute 30, slide block 40 comprises: cylindrical portion 41 and protuberance 42, cylindrical portion 41 is fastened in the cell wall 32, and protuberance 42 passes groove 31 and extends out from cylindrical portion 41, and protuberance 42 holds out against with domatic 22, when slide block 40 rotates, protuberance 42 slides to peak 21 along domatic 22 minimum point, and when arriving peak 21, protuberance 42 falls into pit, switch is cut off in locking, keeps cutting off the closure state of switch; When handle when being rotated counterclockwise, protuberance 42 skids off from pit, and piece contact 51 and screw contacts 91 are separated, and cuts off switch and disconnects.

In the present embodiment, piece contact 51 and double-screw bolt contact 91 are the siller tin oxide contact.Siller tin oxide has good, stable resistance fusion welding and good anti electric arc corrosion ability, in the current range of 500-3000 ampere, siller tin oxide has than the better anti electric arc corrosion ability of other materials, having reduced immediate current sharply changes and the phenomenon of scintillation flower, voltage drop is very little during with big electric current, to generate heat also little, guaranteed the life-span of switch when big current work, satisfied and cut off the application of switch in big current applications.

Piece contact 51 can be planar contacts, and corresponding double-screw bolt contact 91 is the disc contact; Can piece contact 51 be the disc contact also, corresponding double-screw bolt contact 91 be a planar contacts.Planar contacts cooperates with the disc contact, has guaranteed 91 excellent contact in piece contact 51 and double-screw bolt contact.

In the present embodiment, reseting elastic element 95 is elastic materials such as the back-moving spring or the rubber that resets.

The utility model utilizes the closure of hand control switch, and it is big to have solved thrust, can be applicable to the problem of the occasion of big electric current.

Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1, a kind of cut-out switch comprises handle (10), the propulsion plant that is connected with described handle (10); Also comprise contact block (50) and Binding post/stud (90), described propulsion plant holds out against described contact block (50), be provided with reseting elastic element (95) between described contact block (50) and the described Binding post/stud (90), described contact block (50) is provided with piece contact (51), described contact (51) is provided with double-screw bolt contact (91) with described Binding post/stud (90) and cooperates suitable, it is characterized in that, described propulsion plant comprises: housing (20), be installed in the inner rotating shaft of described housing (20), described rotating shaft cooperates with chute (30), slide block (40) is fastened in the described chute (30), be provided with in the described housing (20) domatic (22), described domatic (22) hold out against with described slide block (40), and the gradient of described domatic (22) is transition gradually from low to high, and the peak of described domatic (22) (21) locates to be provided with pit.

2, cut-out switch according to claim 1, it is characterized in that, have groove (31) on the cell wall (32) of described chute (30), described slide block (40) comprising: cylindrical portion (41) and protuberance (42), described cylindrical portion (41) is fastened in the described cell wall (32), described protuberance (42) passes described groove (31) and extends out from described cylindrical portion (41), and described protuberance (42) holds out against with described domatic (22).

3, cut-out switch according to claim 1 is characterized in that, described contact (51) and described double-screw bolt contact (91) are the siller tin oxide contact.

4, cut-out switch according to claim 4 is characterized in that, described contact (51) is planar contacts, and corresponding described double-screw bolt contact (91) is the disc contact; Or described contact (51) be the disc contact, and corresponding described double-screw bolt contact (91) is a planar contacts.

5, cut-out switch according to claim 1 is characterized in that, described reseting elastic element (95) is the back-moving spring or the rubber that resets.