CN2530335Y

CN2530335Y - Double mains automatic switchover gear with mechanical mutual locking structure

Info

Publication number: CN2530335Y
Application number: CN 02235251
Authority: CN
Inventors: 郑清明
Original assignee: Weilaizhilu Science & Tech Co
Current assignee: Beijing union Century Technology Co., Ltd.; Weilaizhilu Science & Tech Co Ltd, Beijing
Priority date: 2002-05-24
Filing date: 2002-05-24
Publication date: 2003-01-08
Anticipated expiration: 2012-05-24

Abstract

The utility model relates to a double mains automatic switchover gear with mechanical mutual locking structure, which is characterized in that: the motherboard is provided with two micro breakers, and the motherboard between the two micro breakers is provided with a motor, and the motor shaft is through the mechanism installation plate. The motor shaft passing through the mechanism installation plate is sleeved with a cam, and a guide pole is positioned on the cam. The swinging arm main body is installed through the limit pole positioned on the mechanism installation plate, and the swinging arm passes through the bracket from side. The mechanism installation plate is provided with an interlock top rod and journey switch. The utility model makes the rotating action of the motor changed to up and down moving of the swinging arm coincident to the action direction of the handle, thereby reducing the mechanical abrasion to the breaker. The utility model is of a simple structure, small volume and low cost, and the self isolated interlock device can effectively realize the interlock of the two micro breakers to avoid the synchronous switching on of the two micro breakers. The motherboard is fixedly provided with a control unit, and the control unit is provided with a relay and the protecting device.

Description

With mechanical interlocked dual power supply automatic switching device

Technical field

The utility model belongs to H01H class technology, and is particularly a kind of with mechanical interlocked dual power supply automatic switching device.

Background technology

At present, dual power supply automatic switching device commonly used adopts two motor-operating mechanisms to control the branch of two breaker of plastic casing, close a floodgate and switch mostly, but its complex structure, volume is big, cost is high.For the dual power supply automatic switching device of using the conversion of power supply and stand-by power supply by two miniature circuit breakers of a motor operation always; though it is simple in structure; but because it does not have independently mutual interlocking gear; be easy to generate misoperation, and automatically control and defencive function not exclusively to bear high voltage capability poor.

The utility model content

The purpose of this utility model is to overcome the deficiency of above technology, and a kind of dual power supply automatic switching device of simple in structure, volume is little, cost is low, function is complete, safe and reliable band separate machine mutual interlocking gear is provided.

For reaching above-mentioned purpose, the technical solution adopted in the utility model is: two miniature circuit breakers are installed on base plate, a motor is installed on the base plate between two miniature circuit breakers, on motor, mechanism's mounting panel is housed by support, motor shaft passes mechanism's mounting panel, suit cam on the motor shaft that passes mechanism's mounting panel, fixing guide pillar on the cam, by the limited post that is fixed on mechanism's mounting panel the swing arm main body is installed, swing arm passes support from the support side, and interlocking push rod and travel switch also are installed on mechanism's mounting panel.Also be fixed with control unit on the base plate, relay and protective device thereof are installed on the control unit.

Description of drawings

The utility model has following accompanying drawing:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is the structural representation of the utility model when mains switch commonly used closes a floodgate;

Fig. 4 is the structural representation of the utility model when Backup Power Switch is closed a floodgate.

In the accompanying drawing:

1: circuit breaker;

2: limited post;

3: support;

4: travel switch;

5: interlocking push rod post;

6: the interlocking push rod;

7: travel switch;

8: support;

9: limited post;

10: circuit breaker;

11: swing arm;

12: stopper slot;

13: the swing arm main body;

14: mechanism's mounting panel;

15: lead groove;

16: guide pillar;

17: cam;

18: guide pillar;

19: lead groove;

20: the swing arm main body;

21: stopper slot;

22: swing arm;

23: control unit;

24: relay;

25: base plate;

26: protective device;

27: motor shaft;

28: motor

Specific embodiments

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

See figures.1.and.2,

miniature circuit breaker

1,10 is installed on the base plate 25, motor 28 is installed on the base plate between two miniature circuit breakers, on motor, pass through

support

3,8 installing mechanism mounting panels 14, pass the part suit cam 17 of mechanism's mounting panel 14 at motor shaft 27, cam is fixed with guide pillar 16 and guide pillar 18 with motor shaft 27 online rotations on cam 17.By the

limited post

2,9 that is fixed on mechanism's mounting panel 14 swing arm

main body

13 and 20 are installed respectively,

swing arm

11,22 is separately fixed on swing arm

main body

13 and 20, and passes support from the support both sides respectively.On swing arm

main body

13 and 20, also be shaped on respectively and

lead groove

15,19 and stopper slot 12,21.The

travel switch

4,7 that on mechanism's mounting panel 14, is fixed with interlocking push rod 6 and motor is stopped the rotation and locate.Be fixed with control unit 23 on the base plate 25, relay 24 and protective device 26 thereof are installed on the control unit.

With reference to Fig. 3, it is the structural representation when using power supply miniature circuit breaker 1 combined floodgate always.Control unit 23 detect power supply commonly used normal after, clockwise rotate order for motor 28.Motor 28 begins to rotate after receiving the order that clockwise rotates, and cam 17 clockwise rotates simultaneously.Guide pillar 16 is producing driving by the 15 pairs of swing arm main bodys of groove 13 of leading on the swing arm main body 13 under the drive of cam 17, by the stopper slot 12 on limited post 2 and the swing arm main body 13, rotatablely moving of guide pillar 16 is converted to moving upward of swing arm main body 13, the translation that makes progress of swing arm 11 drives miniature circuit breaker 1 along with swing arm main body 13 moves upward operating grip, miniature circuit breaker 1 closes from assigning to gradually, power connection commonly used.At this moment, swing arm main body 13 is pushed up on the action bars of travel switch 4, travel switch 4 contact disjunctions, and motor 28 outages, motor stops operating., promote interlocking push rod 6 and clockwise rotate upwards in the translation in swing arm main body 13, auxiliaries-supply circuit-breaker 10 is stuck in the position of separating brake, guarantee that two circuit breakers can not close a floodgate simultaneously.

With reference to Fig. 4, the structural representation when it is stand-by power supply miniature circuit breaker 10 combined floodgates.It is normal that control unit 23 detects stand-by power supply, rotates counterclockwise order for motor 28.Motor 28 begins to rotate after receiving the order that rotates counterclockwise, and cam 17 rotates counterclockwise simultaneously.Guide pillar 18 is producing driving by the 19 pairs of swing arm main bodys of groove 20 of leading on the swing arm main body 20 under the drive of cam 17, by the stopper slot 21 on limited post 9 and the swing arm main body 20, rotatablely moving of guide pillar 18 is converted to moving upward of swing arm main body 20, the translation that makes progress of swing arm 22 drives miniature circuit breaker 10 along with swing arm main body 20 moves upward operating grip, miniature circuit breaker closes from assigning to gradually, at this moment, swing arm main body 20 is pushed up on the action bars of travel switch 7, travel switch 7 contact disjunctions, motor 28 outages, motor stops operating.When swing arm main body 20 makes progress translation, promote interlocking push rod 6 and rotate counterclockwise, with using the position that power circuit breaker 1 is stuck in separating brake always, guarantee that two circuit breakers can not close a floodgate simultaneously.

Advantage of the present utility model and good effect are: only adopt a motor just can break to miniature The road device operates, and it is simple in structure, and volume is little, and cost is low, by the swing arm main body, and will The spinning movement of motor is converted into the upper of the rocking arm consistent with miniature circuit breaker handle direction of action Lower motion has reduced the mechanical wear of breaker. Itself independently mechanical interlock can have The interlocking of two breakers is realized on effect ground, avoids two breakers to close a floodgate simultaneously. Perfect in shape and function Control module have phase shortage, decompression, short circuit, overload protection function. No matter device is in Which kind of state, as long as selected " automatically " mode, control module can both move exactly, Guarantee that two breakers are positioned at correct state.

Claims

1. one kind with mechanical interlocked dual power supply automatic switching device; by base plate; miniature circuit breaker; motor; cam; guide pillar; rocking arm main body; rocking arm; interlocking push rod; travel switch; control unit is formed; it is characterized in that: two miniature circuit breakers are installed on base plate; on the base plate between two miniature circuit breakers a motor is installed; on motor, mechanism's mounting panel is housed; motor shaft passes mechanism's mounting panel; suit cam on the motor shaft that passes mechanism's mounting panel; fixing guide pillar on the cam; by the limited post that is fixed on mechanism's mounting panel the swing arm main body is installed; rocking arm passes support from the support side; interlocking push rod and travel switch also are installed on mechanism's mounting panel; fixing control unit on the base plate; relay is installed on the control unit, and control unit has complete automatic control and defencive function and high voltage withstand capability by support.