CN211957536U

CN211957536U - Side-mounted circuit breaker

Info

Publication number: CN211957536U
Application number: CN202020984162.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Lambda Electric Technology Suzhou Co ltd
Current assignee: Suzhou lambda Electric Co.,Ltd.
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-11-17
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a side-mounted circuit breaker, which comprises a sealing plate, a circuit breaker main body, an operating mechanism and a transmission mechanism, wherein the circuit breaker main body comprises a main frame and three vacuum arc-extinguishing chambers, and the operating mechanism comprises an operating frame, a main shaft and a switching-on and switching-off driving assembly; the transmission mechanism comprises a transmission frame, a connecting rod transmission assembly, a sealing transmission assembly, a transmission rod and three groups of transmission crank arm assemblies, wherein the transmission crank arm assemblies are arranged on the transmission frame from front to back, and are fixedly connected with an insulating pull rod at the movable end of the vacuum arc extinguish chamber; under the drive of the switching-on and switching-off drive assembly, the main shaft is transmitted to the sealing transmission assembly through the connecting rod transmission assembly, and the sealing transmission assembly is simultaneously transmitted to the three groups of transmission crank arm assemblies through the transmission rod so as to drive the insulating pull rod to lift and realize the switching-on and switching-off of the circuit breaker main body. The utility model discloses three-phase vacuum interrupter of circuit breaker longitudinal arrangement from the front to the back has advantages such as compact structure, cost are lower, be convenient for maintenance, operation are reliable.

Description

Side-mounted circuit breaker

Technical Field

The utility model belongs to the technical field of the circuit breaker technique and specifically relates to a side dress formula circuit breaker is related to.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used.

A cabinet type Gas Insulated metal enclosed Switchgear (C-GIS) is a primary distribution system device which takes a breaker as a main switch and is used for 10-35 kV or higher voltage level. The inflatable ring main unit uses a load switch as a main switch and is also provided with a scheme of a circuit breaker, and the inflatable ring main unit is used for a 10-35 kV secondary power distribution system. The inflatable cabinet is generally a general name of the C-GIS and the inflatable ring main unit. At present, the gas-filled cabinet adopts a forward-mounted circuit breaker structure, a three-phase vacuum arc extinguish chamber of a circuit breaker is transversely arranged from left to right, and the width occupied in the gas-filled cabinet is large. However, in some special occasions, the requirement on space is high, and the transverse space for arranging the inflatable cabinet is allowed to be small, so that the innovative design of a breaker structure occupying small transverse space is urgently needed.

Disclosure of Invention

In order to overcome the defects, the utility model provides a side-mounted circuit breaker has carried out optimal design to the operating device of circuit breaker, has realized the longitudinal arrangement from the front to the back of three-phase vacuum interrupter of circuit breaker, has advantages such as compact structure, cost are lower, be convenient for the maintenance, the operation is reliable stable.

The utility model discloses a solve the technical scheme that its technical problem adopted and be:

a side-mounted circuit breaker comprises a sealing plate, a circuit breaker main body arranged on the back of the sealing plate, an operating mechanism arranged on the front of the sealing plate and a transmission mechanism connected between the circuit breaker main body and the operating mechanism, wherein the circuit breaker main body comprises a main frame and three vacuum arc-extinguishing chambers arranged in the main frame from front to back, the operating mechanism comprises an operating frame, a main shaft transversely arranged and rotatably arranged on the operating frame and a switching-closing driving assembly arranged in the operating frame, and a main crank arm is arranged in the middle of the main shaft; the transmission mechanism comprises a transmission frame, a connecting rod transmission assembly, a sealing transmission assembly, a transmission rod and three groups of transmission crank arm assemblies, wherein the sealing transmission assembly is arranged in a through hole on the sealing plate, the transmission frame is arranged on the back surface of the sealing plate and is positioned at the top of the main frame, the transmission crank arm assemblies are arranged on the transmission frame in a front-to-back sequence and are in one-to-one correspondence with the three vacuum arc-extinguishing chambers, and the transmission crank arm assemblies are fixedly connected with the insulation pull rods at the movable ends of the corresponding vacuum arc-extinguishing chambers; under the drive of the switching-on and switching-off drive assembly, the main crank arm reaches the main shaft rotates and passes through the connecting rod transmission assembly to be transmitted to the sealing transmission assembly, the sealing transmission assembly passes through the transmission rod to be transmitted to three groups simultaneously, and the transmission crank arm assembly drives the lifting of the insulating pull rod to realize the switching-on and switching-off of the circuit breaker main body.

As a further improvement of the present invention, the sealing transmission assembly includes a connecting rod, a bellows movable guide member, a sealing bellows and a connecting screw rod, the inner end of the connecting rod is fixedly connected with the outer end of the transmission rod, and the outer end of the connecting rod is fixed on the inner end of the bellows movable guide member; the corrugated pipe movable guide piece is movably sleeved in the sealed corrugated pipe, the inner end of the corrugated pipe movable guide piece is fixedly connected with the inner end of the sealed corrugated pipe in a sealing mode, the outer end of the sealed corrugated pipe is fixed on the sealing plate through a sealing flange, the inner end of the connecting screw rod is fixed on the outer end of the corrugated pipe movable guide piece, and the outer end of the connecting screw rod is connected with the connecting rod transmission assembly.

As a further improvement, the connecting rod transmission assembly includes main connecting rod and triangle turning arm, the first corner of triangle turning arm pass through connecting rod round pin axle rotate install in on the handling frame, the second corner of triangle turning arm with connecting screw fixed connection, the third corner of triangle turning arm with the one end of main connecting rod is rotated and is connected, the other end of main connecting rod with main turning arm rotates and connects, the level of main shaft is less than the level of connecting rod round pin axle, the level of connecting rod round pin axle is less than connecting screw.

As a further improvement, the transmission connecting lever subassembly includes transmission round pin axle, two transmission connecting levers and transmission round pin, the transmission round pin axle install in on the transmission frame, two transmission connecting lever parallel arrangement, the middle part of transmission connecting lever rotate install in the transmission round pin epaxially, the transfer line set up in the below of transmission round pin axle, the first stabilizer blade of transmission connecting lever with the transfer line rotates to be connected, the second stabilizer blade of transmission connecting lever with the both ends of transmission round pin are rotated and are connected, the transmission round pin with insulating pull rod passes through screw rod fixed connection.

As a further improvement of the present invention, the opening and closing driving assembly includes a closing driving assembly, an opening driving assembly, an energy storage shaft, a pawl shaft, a crank shaft and an opening and closing holding pawl, and the closing driving assembly includes a closing coil, a closing crank, a closing link plate, a first holding pawl, a closing cam and a closing energy storage mechanism; the brake separating driving assembly comprises a brake separating coil, a brake separating connecting lever, a brake separating connecting plate, a second retaining latch and a brake separating energy storage mechanism, the energy storage shaft is rotatably installed between a left side plate and a right side plate of the operating frame, the latch shaft and the crank arm shaft are fixedly installed between the left side plate and the right side plate of the operating frame, the latch shaft is located between the energy storage shaft and the crank arm shaft, the brake separating and closing retaining latch is rotatably installed on the energy storage shaft, the first retaining latch and the second retaining latch are both rotatably installed on the latch shaft, and the brake separating connecting lever are both rotatably installed on the crank arm shaft; the first holding pawl is provided with a first connecting arm and a first pawl which form a set included angle, the second holding pawl is provided with a second connecting arm and a second pawl which form a set included angle, a closing roller is installed on the closing cam, the opening and closing holding pawl is provided with a third connecting arm and a fourth connecting arm which form a set included angle, an opening roller is installed on the third connecting arm, and a third pawl is installed on the fourth connecting arm; the main crank arm is provided with a main roller and a closing keeping roller; one end of the closing connecting plate is rotatably connected with the closing connecting lever, and the other end of the closing connecting plate is rotatably connected with the first connecting arm; one end of the opening brake connecting plate is rotatably connected with the opening brake connecting lever, and the other end of the opening brake connecting plate is rotatably connected with the second connecting arm; the closing coil and the opening coil are mounted on the operating frame through a connecting piece, in an opening and stored energy state, a first pawl of the first holding pawl abuts against one side of the closing roller, a third pawl of the opening and closing holding pawl is disengaged from the closing holding roller, when the circuit breaker is closed, after receiving a closing signal, the closing coil pushes the closing connecting lever to rotate through a closing coil push rod, and drives the first holding pawl to rotate through the closing connecting plate, so that the first pawl of the first holding pawl is disengaged from the closing roller, meanwhile, the closing energy storage mechanism drives the energy storage shaft to rotate and drives the closing cam to rotate, so that the closing cam impacts the main roller to rotate and drives the main connecting lever and the main shaft to rotate, and the main connecting lever and the main shaft drive the circuit breaker main body to be closed through the transmission mechanism, meanwhile, the closing keeping roller rotates and is mutually abutted with the third pawl, and the closing state is kept;

in a closing state, a second pawl of the second retaining pawl abuts against one side of the opening roller, and a third pawl of the opening and closing retaining pawl abuts against one side of the closing retaining roller; during opening, after receiving an opening signal, the opening coil pushes the opening connecting lever to rotate through an opening coil push rod, the second holding pawl is driven to rotate through the opening connecting plate, so that the second pawl of the second holding pawl is separated from the opening roller, meanwhile, the opening energy storage mechanism drives the main shaft and the main connecting lever to rotate and drives the closing holding roller to rotate, the closing holding roller is separated from the third pawl, and meanwhile, the main connecting lever and the main shaft drive the transmission mechanism, so that the breaker main body is opened.

As a further improvement of the present invention, the closing energy storage mechanism includes a fixed shaft, a pressure spring, a first baffle, a second baffle, a first hanging plate and two second hanging plates, the fixed shaft is fixedly mounted on an outer side surface of a right side plate of the operation frame, and the fixed shaft and the energy storage shaft are spaced at a set distance, the first hanging plate has a first connecting end and a first T-shaped end, and the second hanging plate has a second connecting end and a second T-shaped end; the first connecting ends of the first hanging plates are rotatably installed on the energy storage connecting levers of the energy storage shaft, the second connecting ends of the two second hanging plates are rotatably installed on the fixed shaft, or the second connecting ends of the two second hanging plates are rotatably installed on the energy storage shaft, and the first connecting ends of the first hanging plates are rotatably installed on the fixed shaft; a distance is set between the two second hanging plates at intervals to form a clamping opening, and a first T-shaped end of the first hanging plate penetrates into the clamping opening from second T-shaped ends of the two second hanging plates; the first baffle, the second baffle and the pressure spring are sleeved on the first hanging plate and the second hanging plate in a sliding mode, the pressure spring is arranged between the first baffle and the second baffle, the first baffle is abutted to the first T-shaped end, and the second baffle is abutted to the second T-shaped end.

As a further improvement, the one end of the pressure spring with be equipped with the gasket between the tank bottom of first recess and/or the other end of pressure spring with be equipped with the gasket between the tank bottom of second recess.

As a further improvement, operating device still includes the energy storage and indicates the subassembly, the energy storage is indicated the subassembly and is included sign, instruction pull rod, instruction turning arm and micro-gap switch, instruct the turning arm to reach the sign all rotate install in on the lateral surface of operating frame's the right side board, just instruct the turning arm to be close to the upside setting of the energy storage turning arm of energy storage axle, instruct the pull rod connect in the sign with instruct between the turning arm, micro-gap switch locates instruct the turning arm dorsad one side of energy storage turning arm.

As a further improvement, the separating brake energy storage mechanism comprises a separating brake pin shaft, two separating brake fixing rods and two separating brake springs, the middle part of the separating brake pin shaft is penetrated in the through hole at the middle part of the transmission rod, two separating brake fixing rods are arranged at intervals and are close to the position of the sealed transmission assembly on the transmission frame, two the separating brake springs are arranged at the left side and the right side of the transmission rod, one the one end of the separating brake spring and one end fixed connection and one of the separating brake pin shaft, the other end of the separating brake spring and one the separating brake fixing rod fixed connection and the other end of the separating brake spring and the other end fixed connection and the other of the separating brake pin shaft.

As a further improvement of the present invention, the operating mechanism further comprises a buffer assembly, the buffer assembly comprises an oil cup crank arm, an oil cup roller and an oil buffer, the oil cup crank arm is mounted on the main shaft, the oil cup roller is mounted on the oil cup crank arm, and the oil cup roller and the oil cup crank arm are located outside the left side plate of the operating frame; the oil buffer is arranged on the left side plate of the operating frame, and the buffer rod of the oil buffer and the oil cup roller are arranged up and down oppositely.

The utility model has the advantages that: the utility model provides a side-mounted circuit breaker, mainly by the closing plate, install in the circuit breaker main part at the closing plate back, install in the positive operating device of closing plate and connect the drive mechanism between circuit breaker main part and operating device and constitute, arrange in the main frame through the order with three vacuum interrupter from the front to the back, and the innovative design drive mechanism, borrow by three group's transmission connecting lever subassemblies and three vacuum interrupter one-to-one, and drive three group's transmission connecting lever subassemblies simultaneously by the transfer line, the function of the three vacuum interrupter divide-shut brake of simultaneous drive has been realized. The sealing transmission assembly is used for realizing transmission between the connecting rod transmission assembly and the transmission rod and realizing dynamic sealing at the position of the sealing plate, three vacuum arc-extinguishing chambers are arranged in a sequence from front to back, only one sealing transmission assembly needs to be arranged, and compared with the existing forward-mounted circuit breaker structure, the sealing transmission assembly greatly reduces the arrangement of the sealing transmission structure, thereby reducing the hidden danger points of air leakage. The transmission rod and the three groups of transmission crank arm assemblies are arranged on the back surface of the sealing plate and can be arranged in the C-GIS sealing box body together with the breaker main body, so that the number of parts on the front surface (outer side) of the sealing plate can be reduced, the opening and closing driving assembly and the main shaft can be conveniently installed, the structure of the operating mechanism is more compact, and the purpose of occupying a smaller transverse space is achieved. Therefore, the utility model discloses a three-phase vacuum interrupter of circuit breaker longitudinal arrangement from the front to the back, and have advantages such as compact structure, cost are lower, be convenient for maintenance, operation are reliable stable.

Drawings

Fig. 1 is a perspective view of the left side view of the side-mounted circuit breaker of the present invention;

fig. 2 is a perspective view of the right side view of the side-mounted circuit breaker of the present invention;

fig. 3 is a perspective view of the top view of the side-mounted circuit breaker of the present invention;

fig. 4 is a front view of the side-mounted circuit breaker of the present invention;

FIG. 5 is a first cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a second sectional view taken along line A-A of FIG. 4;

fig. 7 is a perspective view of the middle closing energy storage mechanism of the present invention;

fig. 8 is a cross-sectional view of the switching-on energy storage mechanism of the present invention;

FIG. 9 is an enlarged view of the structure at B in FIG. 8;

the following description is made with reference to the accompanying drawings:

1-sealing plate, 2-breaker body, 210-main frame, 220-vacuum interrupter, 221-insulating pull rod, 3-operating mechanism, 310-operating frame, 320-main shaft, 330-opening and closing drive component, 331-closing drive component, 3311-closing coil, 3312-closing crank arm, 3313-closing link plate, 3314-first holding pawl, 33141-first link arm, 33142-first pawl, 3315-closing cam, 3316-closing energy storage mechanism, 33161-fixed shaft, 33162-pressure spring, 33163-first baffle, 33164-second baffle, 33165-first hanging plate, 33166-second hanging plate, 33167-nip, 33168-spacer, 3317-closing roller, 332-opening drive component, 3321-opening coil, 3322-opening crank arm, 3323-opening link plate, 3324-second holding pawl, 33241-second connecting arm, 33242-second pawl, 3325-opening energy storage mechanism, 33251-opening pin shaft, 33252-opening fixing lever, 33253-opening spring, 333-energy storage shaft, 334-pawl shaft, 335-crank arm shaft, 336-first holding pawl, 3361-third connecting arm, 3362-fourth connecting arm, 3363-opening roller, 3364-third pawl, 340-main crank arm, 341-main roller, 342-closing holding roller, 350-energy storage indicating member, 351-indicating plate, 352-indicating lever, 353-indicating crank arm, 354-switch, 360-buffer member, 361-cup crank arm, 362-micro-cup roller, 363-oil buffer, 4-transmission mechanism, 410-transmission frame, 420-connecting rod transmission component, 421-main connecting rod, 422-triangle crank arm, 4221-first angle, 4222-second angle, 4223-third angle, 423-connecting rod pin shaft, 430-sealing transmission component, 431-connecting rod, 432-bellows movable guide, 433-sealing bellows, 434-connecting screw rod, 435-sealing flange, 440-transmission rod, 450-transmission crank arm component, 451-transmission pin shaft, 452-transmission crank arm, 4521-first support leg, 4522-second support leg, 453-transmission pin.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.

Referring to fig. 1, 2, 3, 4, 5 and 6, in order to provide a side-mounted circuit breaker, the side-mounted circuit breaker includes a sealing plate 1, a circuit breaker main body 2 mounted on the back of the sealing plate, an operating mechanism 3 mounted on the front of the sealing plate, and a transmission mechanism 4 connected between the circuit breaker main body and the operating mechanism, the circuit breaker main body includes a main frame 210 and three vacuum arc-extinguishing chambers 220 arranged in the main frame in a front-to-back order, the operating mechanism includes an operating frame 310, a main shaft 320 transversely disposed and rotatably mounted on the operating frame, and a switching-closing drive assembly 330 mounted in the operating frame, and a main crank 340 is mounted in the middle of the main shaft; the transmission mechanism comprises a transmission frame 410, a connecting rod transmission assembly 420, a sealing transmission assembly 430, a transmission rod 440 and three groups of transmission crank arm assemblies 450, wherein the sealing transmission assembly is arranged in a through hole on the sealing plate, the transmission frame is arranged on the back surface of the sealing plate and positioned at the top of the main frame, the transmission crank arm assemblies are arranged on the transmission frame in a front-to-back sequence and are in one-to-one correspondence with the three vacuum arc-extinguishing chambers, and the transmission crank arm assemblies are fixedly connected with the insulation pull rods at the movable ends of the corresponding vacuum arc-extinguishing chambers; under the drive of the switching-on and switching-off drive assembly, the main crank arm reaches the main shaft rotates and passes through the connecting rod transmission assembly to be transmitted to the sealing transmission assembly, the sealing transmission assembly passes through the transmission rod to be transmitted to three groups simultaneously, and the transmission crank arm assembly drives the lifting of the insulating pull rod to realize the switching-on and switching-off of the circuit breaker main body. In the structure, the three vacuum arc-extinguishing chambers are arranged in the main frame in a front-to-back sequence, the transmission mechanism is innovatively designed, the three groups of transmission crank arm assemblies correspond to the three vacuum arc-extinguishing chambers one to one, the transmission rod drives the three groups of transmission crank arm assemblies simultaneously, and the opening and closing functions of driving the three vacuum arc-extinguishing chambers simultaneously are realized. The sealing transmission assembly is used for realizing transmission between the connecting rod transmission assembly and the transmission rod and realizing dynamic sealing at the sealing plate. The three vacuum arc-extinguishing chambers are arranged in a front-to-back sequence, only one sealing transmission assembly needs to be arranged, and compared with the existing forward-mounted circuit breaker structure, the arrangement of the sealing transmission structure is greatly reduced, so that the hidden air leakage danger points can be reduced. The transmission rod and the three groups of transmission crank arm assemblies are arranged on the back surface of the sealing plate and can be arranged in the C-GIS sealing box body together with the breaker main body, so that the number of parts on the front surface (outer side) of the sealing plate can be reduced, the structure of the operating mechanism is more compact, and the purpose of occupying a smaller transverse space is achieved. Therefore, the utility model discloses a three-phase vacuum interrupter of circuit breaker longitudinal arrangement from the front to the back, and have advantages such as compact structure, cost are lower, be convenient for maintenance, operation are reliable stable.

In the above structure, the vacuum arc-extinguishing chamber is mainly composed of an airtight insulating housing, a conductive loop, a shielding system, a contact and the like, which is the prior art and is not described herein again.

Preferably, referring to fig. 5 and 6, the sealing transmission assembly comprises a connecting rod 431, a bellows movable guide 432, a sealing bellows 433 and a connecting screw 434, wherein the inner end of the connecting rod is fixedly connected with the outer end of the transmission rod, and the outer end of the connecting rod is fixed on the inner end of the bellows movable guide; the corrugated pipe movable guide piece is movably sleeved in the sealed corrugated pipe, the inner end of the corrugated pipe movable guide piece is fixedly connected with the inner end of the sealed corrugated pipe in a sealing mode, the outer end of the sealed corrugated pipe is fixed on the sealing plate through a sealing flange 435, the inner end of the connecting screw rod is fixed on the outer end of the corrugated pipe movable guide piece, and the outer end of the connecting screw rod is connected with the connecting rod transmission assembly. Therefore, through the matching of the sealing corrugated pipe and the sealing flange, the sealing of the through hole of the sealing plate can be realized, and the sealing transmission function can be realized through the transmission between the corrugated movable guide piece and the connecting rod as well as the connecting screw rod. The sealing flange can be composed of an inner flange and an outer flange, the outer end of the sealing corrugated pipe is connected to the inner flange in a sealing mode, an O-shaped sealing ring can be arranged between the inner side face of the inner flange and the sealing plate, and the outer flange is tightly pressed and positioned outside the inner flange. Like this, connect through setting up sealed bellows, not only when connecting screw rod seesaw, can realize the motion conduction through sealed bellows conduction power, the connected mode of sealed bellows moreover, the dynamic seal requirement of realization circuit breaker divide-shut brake in-process that can be fine to sealing performance is better, and the structure is more succinct, for current formal dress formula circuit breaker structure, only need use a sealed bellows, has reduced gas leakage hidden danger point.

Preferably, referring to fig. 3, 5 and 6, the link transmission assembly includes a main link 421 and a triangular link 422, a first corner 4221 of the triangular link is rotatably mounted on the operating frame through a link pin 423, a second corner 4222 of the triangular link is fixedly connected with the connecting screw, a third corner 4223 of the triangular link is rotatably connected with one end of the main link, the other end of the main link is rotatably connected with the main link, the horizontal height of the main shaft is lower than that of the link pin, and the horizontal height of the link pin is lower than that of the connecting screw. Like this, through the connecting screw of triangle connecting lever connection owner connecting rod and sealed transmission subassembly, can, turn into the horizontally drive power with vertical drive power, and then the transmission is given the transfer line that the level set up in the transmission.

Preferably, referring to fig. 5 and 6, the transmission crank arm assembly includes a transmission pin 451, two transmission crank arms 452 and a transmission pin 453, the transmission pin is mounted on the transmission frame, the two transmission crank arms are arranged in parallel, the middle of the transmission crank arm is rotatably mounted on the transmission pin, the transmission rod is disposed below the transmission pin, the first support 4521 of the transmission crank arm is rotatably connected with the transmission rod, the second support 4522 of the transmission crank arm is rotatably connected with both ends of the transmission pin, and the transmission pin is fixedly connected with the insulation pull rod through a screw rod. Like this, through the cooperation of two transmission connecting lever and drive pin axle, can turn into the drive power of vertical lift with horizontally drive power to realized being driven three group transmission connecting lever subassemblies simultaneously by a transfer line and gone up and down, in order to realize the divide-shut brake function of the three vacuum interrupter who sets up around.

Preferably, referring to fig. 5 and 6, the opening and closing driving assembly includes a closing driving assembly 331, an opening driving assembly 332, a charging shaft 333, a latch shaft 334, a lever shaft 335, and an opening and closing holding latch 336, and the closing driving assembly includes a closing coil 3311, a closing lever 3312, a closing link plate 3313, a first holding latch 3314, a closing cam 3315, and a closing charging mechanism 3316; the opening driving assembly comprises an opening coil 3321, an opening connecting lever 3322, an opening connecting plate 3323, a second retaining latch 3324 and an opening energy storage mechanism 3325, the energy storage shaft is rotatably mounted between the left side plate and the right side plate of the operating frame, the latch shaft and the crank arm shaft are fixedly mounted between the left side plate and the right side plate of the operating frame, the latch shaft is positioned between the energy storage shaft and the crank arm shaft, the opening and closing retaining latch is rotatably mounted on the energy storage shaft, the first retaining latch and the second retaining latch are both rotatably mounted on the latch shaft, and the opening connecting lever are both rotatably mounted on the crank arm shaft; the first holding pawl has a first connecting arm 33141 and a first pawl 33142 with a set angle, the second holding pawl has a second connecting arm 33241 and a second pawl 33242 with a set angle, the closing cam is mounted with a closing roller 3317, the opening and closing holding pawl has a third connecting arm 3361 and a fourth connecting arm 3362 with a set angle, the third connecting arm is mounted with an opening roller 3363, and the fourth connecting arm is mounted with a third pawl 3364; the main crank arm is provided with a main roller 341 and a closing holding roller 342; one end of the closing connecting plate is rotatably connected with the closing connecting lever, and the other end of the closing connecting plate is rotatably connected with the first connecting arm; one end of the opening brake connecting plate is rotatably connected with the opening brake connecting lever, and the other end of the opening brake connecting plate is rotatably connected with the second connecting arm; the closing coil and the opening coil are installed on the operation frame through a connecting piece.

When the breaker is in an open-circuit energy-stored state, a first pawl of the first holding pawl abuts against one side of the closing roller, a third pawl of the open-circuit and close-circuit holding pawl is separated from the closing holding roller, when the breaker is in a closed state, the closing coil pushes the closing connecting lever to rotate through a closing coil push rod after receiving a closing signal, and the first holding pawl is driven to rotate through the closing connecting plate, so that the first pawl of the first holding pawl is separated from the closing roller, meanwhile, the closing energy-storage mechanism drives the energy-storage shaft to rotate and drives the closing cam to rotate, so that the closing cam impacts the main roller to rotate and drives the main connecting lever and the main shaft to rotate, the main connecting lever and the main shaft drive the breaker main body through the transmission mechanism to close, and meanwhile, the closing holding roller rotates and abuts against the third pawl, to maintain a closing state;

in a closing state, a second pawl of the second holding pawl abuts against one side of the opening roller, and a third pawl of the opening and closing holding pawl abuts against one side of the closing holding roller; during opening, after receiving an opening signal, the opening coil pushes the opening connecting lever to rotate through an opening coil push rod, the second holding pawl is driven to rotate through the opening connecting plate, so that the second pawl of the second holding pawl is separated from the opening roller, meanwhile, the opening energy storage mechanism drives the main shaft and the main connecting lever to rotate and drives the closing holding roller to rotate, the closing holding roller is separated from the third pawl, and meanwhile, the main connecting lever and the main shaft drive the transmission mechanism, so that the breaker main body is opened.

In the structure, the closing crank arm and the opening crank arm share one crank arm shaft, the first retaining pawl and the second retaining pawl share one pawl shaft, and the closing cam and the opening and closing brake retaining pawl share one energy storage shaft.

Preferably, referring to fig. 7, 8 and 9, the closing energy storage mechanism includes a fixing shaft 33161, a pressure spring 33162, a first baffle 33163, a second baffle 33164, a first hanging plate 33165 and two second hanging plates 33166, the fixing shaft is fixedly mounted on an outer side surface of a right side plate of the operating frame, the fixing shaft and the energy storage shaft are spaced by a set distance, the first hanging plate has a first connecting end and a first T-shaped end, and the second hanging plate has a second connecting end and a second T-shaped end; the first connecting ends of the first hanging plates are rotatably installed on the energy storage connecting levers of the energy storage shaft, the second connecting ends of the two second hanging plates are rotatably installed on the fixed shaft, or the second connecting ends of the two second hanging plates are rotatably installed on the energy storage shaft, and the first connecting ends of the first hanging plates are rotatably installed on the fixed shaft; a distance is set between the two second hanging plates at intervals to form a clamping opening 33167, and the first T-shaped end of the first hanging plate penetrates into the clamping opening from the second T-shaped ends of the two second hanging plates; the first baffle, the second baffle and the pressure spring are sleeved on the first hanging plate and the second hanging plate in a sliding mode, the pressure spring is arranged between the first baffle and the second baffle, the first baffle is abutted to the first T-shaped end, and the second baffle is abutted to the second T-shaped end. Like this, through wearing the pattern of cover each other with first link plate and two second link plate designs, and with first baffle, pressure spring and second baffle cover are established between the first T type end of first link plate and the second T type end of second link plate, a compression energy storage structure has been formed, for the structure that energy storage part adopted the extension spring among the prior art, energy storage part's mechanical strength has been improved, and through add the gasket between first baffle and second baffle, can realize the accurate regulation of the power value of divide-shut brake drive power. Compared with the structure that energy storage component adopted the pressure spring among the prior art, the utility model discloses well first baffle and second baffle can adopt the machine tooling preparation, and two three kinds of specifications of only fixing can realize a large amount of stock, and first link plate and second link plate can form through direct panel beating cutting, and the production and processing is more convenient, consequently, the utility model discloses compression energy storage mechanism has advantages such as simple structure, convenient assembling, production and processing are simple, manufacturing cost is lower.

In the energy storage process, the fixed shaft and the two second hanging plates are kept still, the energy storage shaft rotates and rotates from the lowest point to the highest point, at the moment, the energy storage shaft pulls the first hanging plate to move upwards relative to the second hanging plate, so that the distance between the first T-shaped end of the first hanging plate and the second T-shaped end of the second hanging plate is reduced, and the pressure spring can be compressed to realize energy storage. When the switch is switched on, the stored energy of the pressure spring is released, and the restoring force of the pressure spring drives the energy storage shaft to rotate from the highest point to the lowest point, so that a switch-on cam on the energy storage shaft is driven to rotate and impact a main roller on the main shaft, and the switch is switched on.

Preferably, a first groove is formed in one side, facing the pressure spring, of the first baffle, a second groove is formed in one side, facing the pressure spring, of the second baffle, one end of the pressure spring is contained in the first groove, and the other end of the pressure spring is contained in the second groove. A gasket is arranged between one end of the pressure spring and the groove bottom of the first groove and/or a gasket 33168 is arranged between the other end of the pressure spring and the groove bottom of the second groove. Like this, through forming first recess in one side at first baffle towards the pressure spring, form the second recess in one side of second baffle towards the pressure spring, be convenient for fix the both ends of pressure spring, and be convenient for increase the gasket between pressure spring and first baffle and second baffle, through setting up different gaskets or the quantity that changes the gasket, can reach the purpose of the power value of the drive power of accurate regulation pressure spring. The technical principle is as follows: under the condition that the interval between fixed axle and the energy storage shaft is certain, the quantity that increases the gasket between pressure spring and first baffle and second baffle is more, and the decrement of pressure spring is more, and then the pressure spring energy storage is big more, and the drive power that provides after the pressure spring release is also big more.

Preferably, a first bearing sleeve is arranged and is rotatably connected with a shaft core of the energy storage crank arm of the energy storage shaft, and the first connecting end is fixedly sleeved on the first bearing sleeve. The second bearing sleeve is arranged and is rotationally connected with the shaft core of the fixed shaft, and the second connecting end is fixedly sleeved on the second bearing sleeve. Like this, realize the rotation between first link plate and the fixed axle or the energy storage shaft through the bearing housing and be connected to and the rotation between second link plate and the fixed axle or the energy storage shaft is connected, can reduce wearing and tearing between them. For example, the bearing housing may be an oilless bearing. Simple structure just can play and provide mutual pivoted function.

Preferably, referring to fig. 2, the operating mechanism further includes an energy storage indicating assembly 350, the energy storage indicating assembly includes a sign 351, an indicating pull rod 352, an indicating crank 353 and a micro switch 354, the indicating crank and the sign are rotatably mounted on the outer side surface of the right side plate of the operating frame, the indicating crank is disposed near the upper side of the energy storage crank of the energy storage shaft, the indicating pull rod is connected between the sign and the indicating crank, and the micro switch is disposed on one side of the indicating crank, which faces away from the energy storage crank. Therefore, when the closing energy storage mechanism stores energy, namely the energy storage shaft rotates from the lowest point to the highest point, the energy storage connecting lever pushes the indicating connecting lever to rotate, the indicating connecting lever rotates to drive the indicating plate to rotate through the indicating pull rod, the stored energy mark on the indicating plate is displayed, and the purpose of prompting the completion of energy storage is achieved. Meanwhile, the crank arm is indicated to trigger the microswitch, and the microswitch sends a signal to the background controller to prompt that energy storage is finished.

Preferably, referring to fig. 5 and 6, the opening energy storage mechanism includes an opening pin shaft 33251, two opening fixing rods 33252 and two opening springs 33253, the middle of the opening pin shaft penetrates through a through hole in the middle of the transmission rod, the two opening fixing rods are installed at a position on the transmission frame close to the sealed transmission assembly at intervals, the two opening springs are separately installed on the left and right sides of the transmission rod, one end of one opening spring is fixedly connected with one end of the opening pin shaft, the other end of the one opening spring is fixedly connected with one opening fixing rod, one end of the other opening spring is fixedly connected with the other end of the opening pin shaft, and the other end of the other opening spring is fixedly connected with the other opening fixing rod. Therefore, when the switch is switched on, the transmission rod simultaneously drives the two switch-off springs to store energy through the switch-off pin shaft, for example, the switch-off springs are stretched to store energy; when the breaker is opened, the energy stored in the breaking spring is released, the driving rod can be driven to reset, and the driving rod further drives the three groups of driving crank arm assemblies simultaneously and drives the insulating pull rod at the moving end of the vacuum arc extinguish chamber, so that the breaking of the breaker main body is realized. Here, the separating brake dead lever is used for assembling the separating brake spring into the state parallel with the transfer line, for example the level setting, just the utility model discloses set up two separating brake springs, can balanced drive transfer line, and can ensure the drive power needs of driving three vacuum interrupter simultaneously. But is not limited thereto, the number of the opening springs may be increased or decreased as needed.

Preferably, referring to fig. 1, the operating mechanism further includes a buffer assembly 360, the buffer assembly includes an oil cup crank arm 361, an oil cup roller 362 and an oil buffer 363, the oil cup crank arm is mounted on the spindle, the oil cup roller is mounted on the oil cup crank arm, and the oil cup roller and the oil cup crank arm are located on the outer side of the left side plate of the operating frame; the oil buffer is arranged on the left side plate of the operating frame, and the buffer rod of the oil buffer and the oil cup roller are arranged up and down oppositely. Like this, through the cooperation of oil buffering and oil cup gyro wheel, can effectively cushion the main shaft atress rotation, reduce the vibration and improve life.

The utility model discloses side dress formula circuit breaker can be applied to cabinet type gas insulated metal enclosed switchgear (C-GIS), uses as C-GIS high voltage alternating current circuit breaker, and the during operation, the divide-shut brake instruction that C-GIS high voltage alternating current circuit breaker sent according to the executive logic unit carries out work respectively, the utility model discloses a longitudinal arrangement from the front to the back of three-phase vacuum interrupter of circuit breaker reaches and reduces the purpose that occupies horizontal space, can satisfy switchgear's miniaturized development demand, and not only overall structure is compact, but also has advantages such as the cost is lower, be convenient for maintain, the operation is reliable stable.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A side-mounted circuit breaker, characterized in that: the circuit breaker comprises a sealing plate (1), a circuit breaker main body (2) arranged on the back of the sealing plate, an operating mechanism (3) arranged on the front of the sealing plate and a transmission mechanism (4) connected between the circuit breaker main body and the operating mechanism, wherein the circuit breaker main body comprises a main frame (210) and three vacuum arc-extinguishing chambers (220) arranged in the main frame from front to back, the operating mechanism comprises an operating frame (310), a main shaft (320) transversely arranged and rotatably arranged on the operating frame and a switching-closing driving assembly (330) arranged in the operating frame, and a main crank arm (340) is arranged in the middle of the main shaft; the transmission mechanism comprises a transmission frame (410), a connecting rod transmission assembly (420), a sealing transmission assembly (430), a transmission rod (440) and three groups of transmission crank arm assemblies (450), wherein the sealing transmission assembly is arranged in a through hole on the sealing plate, the transmission frame is arranged on the back surface of the sealing plate and positioned at the top of the main frame, the transmission crank arm assemblies are arranged on the transmission frame in a front-to-back sequence and are in one-to-one correspondence with the three vacuum arc-extinguishing chambers, and the transmission crank arm assemblies are fixedly connected with the insulation pull rods (221) at the movable ends of the corresponding vacuum arc-extinguishing chambers; under the drive of the switching-on and switching-off drive assembly, the main crank arm reaches the main shaft rotates and passes through the connecting rod transmission assembly to be transmitted to the sealing transmission assembly, the sealing transmission assembly passes through the transmission rod to be transmitted to three groups simultaneously, and the transmission crank arm assembly drives the lifting of the insulating pull rod to realize the switching-on and switching-off of the circuit breaker main body.

2. The side mounted circuit breaker of claim 1, wherein: the sealing transmission assembly comprises a connecting rod (431), a corrugated pipe movable guide (432), a sealing corrugated pipe (433) and a connecting screw rod (434), the inner end of the connecting rod is fixedly connected with the outer end of the transmission rod, and the outer end of the connecting rod is fixed on the inner end of the corrugated pipe movable guide; the corrugated pipe movable guide piece is movably sleeved in the sealed corrugated pipe, the inner end of the corrugated pipe movable guide piece is fixedly connected with the inner end of the sealed corrugated pipe in a sealing mode, the outer end of the sealed corrugated pipe is fixed on the sealing plate through a sealing flange (435), the inner end of the connecting screw rod is fixed on the outer end of the corrugated pipe movable guide piece, and the outer end of the connecting screw rod is connected with the connecting rod transmission assembly.

3. The side mounted circuit breaker of claim 2, wherein: the connecting rod transmission assembly comprises a main connecting rod (421) and a triangular connecting arm (422), a first angle (4221) of the triangular connecting arm is rotatably installed on the operation frame through a connecting rod pin shaft (423), a second angle (4222) of the triangular connecting arm is fixedly connected with the connecting screw rod, a third angle (4223) of the triangular connecting arm is rotatably connected with one end of the main connecting rod, the other end of the main connecting rod is rotatably connected with the main connecting arm, the horizontal height of the main shaft is lower than that of the connecting rod pin shaft, and the horizontal height of the connecting rod pin shaft is lower than that of the connecting screw rod.

4. The side mounted circuit breaker of claim 2, wherein: the transmission connecting lever subassembly includes transmission round pin axle (451), two transmission connecting levers (452) and transmission round pin (453), transmission round pin axle install in on the transmission frame, two transmission connecting lever parallel arrangement, the middle part of transmission connecting lever rotate install in on the transmission round pin axle, the transfer line set up in the below of transmission round pin axle, the first stabilizer blade (4521) of transmission connecting lever with the transfer line rotates to be connected, the second stabilizer blade (4522) of transmission connecting lever with the both ends of transmission round pin are rotated and are connected, the transmission round pin with insulating pull rod passes through screw rod fixed connection.

5. The side mounted circuit breaker of claim 1, wherein: the switching-on and switching-off driving component comprises a switching-on driving component (331), a switching-off driving component (332), an energy storage shaft (333), a latch shaft (334), a crank arm shaft (335) and a switching-on and switching-off holding latch (336), and the switching-on driving component comprises a switching-on coil (3311), a switching-on crank arm (3312), a switching-on connecting plate (3313), a first holding latch (3314), a switching-on cam (3315) and a switching-on and switching-off energy storage mechanism (3316); the opening driving assembly comprises an opening coil (3321), an opening connecting lever (3322), an opening connecting plate (3323), a second holding pawl (3324) and an opening energy storage mechanism (3325), the energy storage shaft is rotatably arranged between a left side plate and a right side plate of the operating frame, the pawl shaft and the opening arm shaft are fixedly arranged between the left side plate and the right side plate of the operating frame, the pawl shaft is positioned between the energy storage shaft and the opening arm shaft, the opening and closing holding pawl is rotatably arranged on the energy storage shaft, the first holding pawl and the second holding pawl are rotatably arranged on the pawl shaft, and the closing arm and the opening connecting lever are rotatably arranged on the opening arm shaft; the first holding pawl is provided with a first connecting arm (33141) and a first pawl (33142) which are at a set included angle, the second holding pawl is provided with a second connecting arm (33241) and a second pawl (33242) which are at a set included angle, a closing roller (3317) is installed on the closing cam, the opening and closing holding pawl is provided with a third connecting arm (3361) and a fourth connecting arm (3362) which are at a set included angle, an opening roller (3363) is installed on the third connecting arm, and a third pawl (3364) is installed on the fourth connecting arm; the main crank arm is provided with a main roller (341) and a closing holding roller (342); one end of the closing connecting plate is rotatably connected with the closing connecting lever, and the other end of the closing connecting plate is rotatably connected with the first connecting arm; one end of the opening brake connecting plate is rotatably connected with the opening brake connecting lever, and the other end of the opening brake connecting plate is rotatably connected with the second connecting arm; the switching-on coil and the switching-off coil are mounted on the operating frame through connecting pieces, in a switching-off and energy-stored state, a first pawl of the first retaining pawl abuts against one side of the switching-on roller, and a third pawl of the switching-on and switching-off retaining pawl is disengaged from the switching-on retaining roller; in a closing state, the second pawl of the second holding pawl abuts against one side of the opening roller, and the third pawl of the opening and closing holding pawl abuts against one side of the closing holding roller.

6. The side mounted circuit breaker of claim 5, wherein: the closing energy storage mechanism comprises a fixing shaft (33161), a pressure spring (33162), a first baffle (33163), a second baffle (33164), a first hanging plate (33165) and two second hanging plates (33166), the fixing shaft is fixedly arranged on the outer side surface of the right side plate of the operating frame, the fixing shaft and the energy storage shaft are separated by a set distance, the first hanging plate is provided with a first connecting end and a first T-shaped end, and the second hanging plate is provided with a second connecting end and a second T-shaped end; the first connecting ends of the first hanging plates are rotatably installed on the energy storage connecting levers of the energy storage shaft, the second connecting ends of the two second hanging plates are rotatably installed on the fixed shaft, or the second connecting ends of the two second hanging plates are rotatably installed on the energy storage shaft, and the first connecting ends of the first hanging plates are rotatably installed on the fixed shaft; a distance is set between the two second hanging plates at intervals to form a clamping opening (33167), and the first T-shaped end of the first hanging plate penetrates into the clamping opening from the second T-shaped ends of the two second hanging plates; the first baffle, the second baffle and the pressure spring are sleeved on the first hanging plate and the second hanging plate in a sliding mode, the pressure spring is arranged between the first baffle and the second baffle, the first baffle is abutted to the first T-shaped end, and the second baffle is abutted to the second T-shaped end.

7. The side mounted circuit breaker of claim 6, wherein: a first groove is formed in one side, facing the pressure spring, of the first baffle plate, a second groove is formed in one side, facing the pressure spring, of the second baffle plate, one end of the pressure spring is contained in the first groove, and the other end of the pressure spring is contained in the second groove; a gasket (33168) is arranged between one end of the pressure spring and the groove bottom of the first groove and/or between the other end of the pressure spring and the groove bottom of the second groove.

8. The side mounted circuit breaker of claim 5, wherein: operating device still includes energy storage indicating assembly (350), energy storage indicating assembly includes sign (351), instructs pull rod (352), instructs crank arm (353) and micro-gap switch (354), instruct the crank arm to reach the sign all rotate install in on the lateral surface of operating frame's right side board, just instruct the crank arm to be close to the upside setting of the energy storage crank arm of energy storage axle, instruct the pull rod connect in the sign with instruct between the crank arm, micro-gap switch locates instruct the crank arm dorsad one side of energy storage crank arm.

9. The side mounted circuit breaker of claim 5, wherein: the brake separating energy storage mechanism comprises a brake separating pin shaft (33251), two brake separating fixing rods (33252) and two brake separating springs (33253), the middle parts of the brake separating pin shafts penetrate through holes in the middle parts of the transmission rods, the two brake separating fixing rods are arranged at the positions, close to the sealing transmission assembly, on the transmission frame at intervals, the two brake separating springs are arranged on the left side and the right side of the transmission rods in a separating mode, one end of one brake separating spring is fixedly connected with one end of the brake separating pin shaft, the other end of one brake separating spring is fixedly connected with one brake separating fixing rod, one end of the other brake separating spring is fixedly connected with the other end of the brake separating pin shaft, and the other end of the other brake separating spring is fixedly connected with the other brake separating fixing rod.

10. The side mounted circuit breaker of claim 1, wherein: the operating mechanism further comprises a buffer assembly (360), the buffer assembly comprises an oil cup crank arm (361), an oil cup roller (362) and an oil buffer (363), the oil cup crank arm is installed on the spindle, the oil cup roller is installed on the oil cup crank arm, and the oil cup roller and the oil cup crank arm are located on the outer side of the left side plate of the operating frame; the oil buffer is arranged on the left side plate of the operating frame, and the buffer rod of the oil buffer and the oil cup roller are arranged up and down oppositely.