CN201207339Y

CN201207339Y - Automatic converting switch for dual power source

Info

Publication number: CN201207339Y
Application number: CNU2008200551324U
Authority: CN
Inventors: 支朝乾; 张瑞青
Original assignee: Shanghai Fulong Electronic Technology Co Ltd; YUEQING FULONG ELECTRIC APPLIANCE CO Ltd
Current assignee: Fulong Electrical Science Co., Ltd.
Priority date: 2008-01-21
Filing date: 2008-01-21
Publication date: 2009-03-11
Anticipated expiration: 2018-01-21

Abstract

The utility model discloses a dual power supply automatic conversion switch, which is composed of a common breaker which is arranged on the left side and a standby breaker which is arranged on the right side; the common breaker and the standby breaker are provided with operating handles, a special-shaped rotary disc is added between the common breaker and the standby breaker, grooves are respectively arranged at the left end and the right end of the special-shaped rotary disc, and the end parts of the left and the right operating handles are completely provided with raised extended shafts which are respectively inserted into the left and the right grooves of the special-shaped rotary disc. The dual power supply automatic conversion switch has the advantages that the rotary disc translocation travel is reasonable and reliable; the action is stable during the operation process; the mechanism is simple; the volume is small, and the action is stable and reliable, thus really realizing the microminiature requirements of the dual power supply automatic conversion switch.

Description

Double power supply automatic transfer switch

Technical field

The utility model relates to a kind of dual power supply automatic control equipment, especially be applied to exchange 50/60HZ, in the dual power supply system that rated operational voltage is 400 volts, when power supply commonly used breaks down, double power supply automatic transfer switch can realization and the automatic conversion of stand-by power supply or generator, to guarantee the reliability and the fail safe of power supply.

Background technology

Along with growth in the living standard, people are also more and more higher to the reliability requirement of power supply, and double power supply automatic transfer switch progressively becomes indispensable power supply unit in the electric power system, and China is divided into PC level and two ranks of CB level with double power supply automatic transfer switch at present.PC level double power supply automatic transfer switch is merely able to connect with the disjunction load, the defencive function that does not have short circuit and overcurrent.The protection component so in distribution line, can only increase electric power.CB level double power supply automatic transfer switch mainly is made of two circuit breakers, interlock, operating mechanism etc., present operating mechanism comprises electromagnetic type and single electric motor type, single motor double-acting power unit has " rotating disk-slide plate bidirectional operating mechanism " at present, and " rotating disk-fork double-acting power unit " reaches " gear-slide plate bidirectional operating mechanism ".Because parts such as rotating disk, fork, gear, slide plate are subjected to structural limitations, size is bigger, makes these single electric motor type operating mechanisms and electromagnetic type operating mechanism all can not realize subminaturization.

Summary of the invention

The purpose of this utility model just provides that a kind of mechanism is simple, volume is small and exquisite, the CB level double power supply automatic transfer switch of reliable in action.

For achieving the above object, technical solution adopted in the utility model is: a kind of double power supply automatic transfer switch, it comprises the circuit breaker commonly used that is installed in the left side and the back-up breaker on the right, have left operating grip on the circuit breaker commonly used, have right operating grip on the back-up breaker, also add special-shaped rotating disk between the commonly used and back-up breaker, the left side of abnormity rotating disk, right two ends respectively have recessed poor, all there is the axle of drawing of protrusion the end of left side operating grip and right operating grip, and the axle of drawing on left operating grip and the right operating grip inserts respectively among recessed being pickled with grains or in wine in the left and right sides of special-shaped rotating disk.

Compared with prior art, it is rationally reliable to the utlity model has rotating disk rotation position stroke, stable action during operation, and machine is simple, volume is small and exquisite, stable action is reliable thereby reach, and really realizes the subminiaturized requirement of double power supply automatic transfer switch.

Description of drawings

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

Fig. 2 is the structure enlarged diagram of special-shaped disk part of the present utility model.

Fig. 3 is a special-shaped disk part vertical view of the present utility model.

Fig. 4 is a special-shaped disk part front view of the present utility model.

Fig. 5 is an operating grip architecture schematic diagram of the present utility model.

Fig. 6 is the two branch view of the utility model operating mechanism.

Fig. 7 is the utility model operating mechanism breaker closing commonly used, back-up breaker gate-dividing state figure.

Fig. 8 is the utility model operating mechanism breaker open operation commonly used, back-up breaker "on" position figure.

Fig. 9 is the electrical isolation cover structure schematic diagram of the utility model operating mechanism circuit breaker.

Embodiment

Double power supply automatic transfer switch shown in Figure 1 comprises circuit breaker 2 commonly used and back-up breaker 3 and operating mechanism, operating mechanism comprises that motor fails bearing 10, special-shaped rotating disk 7, left and

right operating grip

1,4, left and right combined

floodgate

12,11, left and right minute truck side bearing 13,14, Limit Bearing 16, support 5, electrical isolation cover 20.Figure 2 shows that special-shaped rotating disk 7 structural representations.Support 5 is connected between the left and right circuit breaker 2,3, left and

right operating grip

1,4 is installed in respectively on the left and right circuit breaker, it is drawn axle and places close a floodgate axle 12 and part lock axle 14 on the left side and the right axle 14 that closes a floodgate parts on the right side between the lock axle 13 of a left side respectively, the input and output commonly used and the standby input/output terminal of main circuit are made electrical isolation by electrical isolation cover 20, and Fig. 9 is an electrical isolation cover structure schematic diagram.

Special-shaped rotating disk comprises that left combined floodgate bearing 13 parts lock 14 on the left side, the right axle 11 that closes a floodgate parts truck side bearing 12, fixed screw 15, special-shaped rotating disk fixture 8, limit shaft 16 on the right side among Fig. 3,4, abnormity rotating disk overall package is installed on the motor output shaft 10 by the fixture otch, and is reinforced fixing by screw.

Fig. 5 is the operating grip schematic diagram, and left operating grip 1, right operating grip 4 have been processed into draws axle 18, and the installation of location hole 19 is concentric and fixing with circuit breaker handle.

Among Fig. 6, when circuit breaker commonly used 2 and back-up breaker 3 need be in two branch state, left operating grip 1 and right operating grip 4 all be in respectively the left and right sides of special-shaped rotating disk recessed poor among lower position, the handle of two circuit breakers also all is in the separating brake position.

Among Fig. 7, when needs circuit breaker 2 commonly used closes a floodgate, back-up breaker 3 separating brakes, motor output shaft 10 turns clockwise, drive left side combined floodgate axle 12 and move upward, make left operating grip 1 draw axle and also move upward, circuit breaker 2 commonly used closes a floodgate, and stir 16 right limit sensitive switches 9 by limit shaft and stop motor output shaft 10 rotation, breaker closing 2 successes commonly used.And back-up breaker 3 is owing to part the effect of lock axle 13 and special-shaped rotating disk mechanical interlocking on the right side, and back-up breaker 3 just is in gate-dividing state.

In shown in Figure 8, when needs circuit breaker 2 separating brakes commonly used, back-up breaker 3 closes a floodgate, motor output shaft 10 is rotated counterclockwise, drive the right axle 11 that closes a floodgate and move upward, make right operating grip 4 draw axle and also move upward, back-up breaker 3 closes a floodgate, and stir 16 left limit sensitive switches 6 by limit shaft and stop motor output shaft 10 rotation, back-up breaker 3 successes of closing a floodgate.And circuit breaker 2 commonly used is used circuit breaker 2 always and just is in gate-dividing state owing to part on the left side under the effect of lock axle 14 and special-shaped rotating disk mechanical interlocking.

Claims

1, a kind of double power supply automatic transfer switch, it comprises the circuit breaker commonly used (2) that is installed in the left side and the back-up breaker (3) on the right, have left operating grip (1) on the circuit breaker (2) commonly used, have right operating grip (4) on the back-up breaker (3), it is characterized in that described commonly used and back-up breaker (2,3) also add special-shaped rotating disk (7) between, the left side of abnormity rotating disk (7), right two ends respectively have recessed poor, all there are draw spool (18) of protrusion the end of described left operating grip (1) and right operating grip (4), and the axle (18) of drawing on left operating grip (1) and the right operating grip (4) inserts respectively among recessed being pickled with grains or in wine in the left and right sides of special-shaped rotating disk (7).