CN218585884U - 10kV dipolar heavy current vacuum circuit breaker - Google Patents

Abstract

The utility model discloses a 10kV dipolar heavy current vacuum circuit breaker, which relates to the technical field of electrical equipment-medium voltage switch; the wire outlet device comprises an upper wire outlet seat, wherein a vacuum arc extinguish chamber is arranged at the bottom of the upper wire outlet seat, a flexible connection is arranged at the bottom of the vacuum arc extinguish chamber, a lower wire outlet seat is arranged at the bottom of the flexible connection, an insulating pull rod is arranged at the bottom of the lower wire outlet seat, an auxiliary cooling fin is arranged at the top of the upper wire outlet seat, a main cooling fin is arranged at the bottom of the auxiliary cooling fin, and a case is arranged on one side of the upper wire outlet seat; during the use, this circuit breaker major loop adopts insulating cylinder composite insulation, installs additional fin again additional to make the circuit breaker the radiating effect at the during operation good, and its operating device transmission be gear drive, thereby improve the transmission efficiency of circuit breaker, through the insulating cylinder assembly of having optimized, insulation level is high, and the seat of being qualified for the next round of competitions material changes into aluminium, and the lower carriage is the forged aluminium material, thereby makes the cost lower, and insulating cylinder assembly weight is less, the personnel's of being convenient for installation.

Description

10kV dipolar heavy current vacuum circuit breaker

Technical Field

The utility model relates to an electrical equipment-medium voltage switch technical field specifically is a 10kV two poles of earth heavy current vacuum circuit breaker.

Background

According to the Chinese invention with the patent number CN208938879U, the 10kV bipolar permanent magnet vacuum circuit breaker is provided, two-phase primary conductive parts are arranged on the same operating mechanism, so that the installation size is reduced, and the space is saved; the operation mechanism moves to drive the two primary conductive parts to move simultaneously, so that the synchronism of closing and connecting of a primary conductive loop is ensured, and the reliability is high; the operating mechanism adopts a permanent magnetic mechanism, has no tripping and locking devices, greatly reduces parts, simplifies a transmission mechanism, keeps the opening and closing positions through permanent magnetic suction, has low failure rate and long mechanical life, is suitable for frequent operation occasions, reduces the use amount of copper bars and steel of a power cabinet which is matched with the operating mechanism and is installed, and reduces the cost. The effect of this neotype structure still has certain not enough improving radiating effect, transmission efficiency and installation.

We propose a 10kV bipolar high current vacuum circuit breaker to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The problems that an existing 10kV dipolar heavy-current vacuum circuit breaker is poor in heat dissipation effect and transmission efficiency and inconvenient to install are solved; an object of the utility model is to provide a 10kV two poles of earth heavy current vacuum circuit breaker.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a 10kV two-pole heavy current vacuum circuit breaker, including going out the line seat, the bottom of going out the line seat is provided with vacuum interrupter, vacuum interrupter's bottom is provided with the flexible coupling, the bottom of flexible coupling is provided with down the seat of being qualified for the next round of competitions, the bottom of lower seat of being qualified for the next round of competitions is provided with insulating pull rod, utilize insulating pull rod, be convenient for vacuum interrupter's switching, the top of going out the line seat is provided with auxiliary cooling fin, utilize auxiliary cooling fin, be convenient for this circuit breaker heat dissipation, auxiliary cooling fin's bottom is provided with main radiating fin, utilize main radiating fin, be convenient for this circuit breaker heat dissipation, optimize the radiating effect, one side of going out the line seat is provided with the quick-witted case, the inside of quick-witted case is provided with the separating brake release, one side of separating brake release is provided with closing spring, the required energy of circuit breaker closing is provided with closing spring energy storage, one side of closing spring is provided with closing release, the bottom of closing release is provided with the connecting cam, the bottom of connecting cam is provided with micro-gap switch, one side of micro-gap switch is provided with the main shaft, the bottom of main shaft is provided with the motor.

Preferably, one side of flexible coupling is provided with the lower carriage, utilize the lower carriage, the personnel of being convenient for connect and support vacuum interrupter, one side of lower carriage and one side fixed connection of lower outlet seat, one side of lower carriage is provided with electrically conductive clamp, utilize electrically conductive clamp, the smooth circulation of electric current in the inside of this circuit breaker of being convenient for, electrically conductive clamp and one side swing joint of flexible coupling, the bottom of auxiliary cooling fin is provided with the insulating cylinder, utilize the insulating cylinder, can improve the insulating level of this circuit breaker, one side of separating brake release is provided with the separating brake button, one side of separating brake button is provided with the divide-shut brake sign, utilize the divide-shut brake sign, the personnel of being convenient for discern and operate the branch combined floodgate, one side of connecting the cam is provided with the energy storage sign, utilize the energy storage sign, can show the current energy storage condition.

Preferably, one side of combined floodgate release is provided with closing button, utilize closing button, the personnel of being convenient for control the combined floodgate, the bottom of motor and the interior diapire fixed connection of quick-witted case, vacuum interrupter's inside is provided with the moving contact, one side fixed connection of moving contact and insulating pull rod, because one side fixed connection of moving contact and insulating pull rod, so the insulating pull rod of being convenient for drives the moving contact and removes, the material of going out the line seat on with the seat of being qualified for the next round of competitions down is aluminium, the lower carriage is the forged aluminium material, because the material of the seat of being qualified for the next round of competitions down is aluminium, the lower carriage is the forged aluminium material, so make the cost of this circuit breaker lower.

Has the advantages that:

the transmission of the operating mechanism is gear transmission, the transmission efficiency is high, the failure rate is low, the assembly of the optimized insulating cylinder is high, the insulating level is high, additional radiating fins are additionally arranged, and the radiating effect is good

During the use, this circuit breaker major loop adopts insulating cylinder composite insulation, installs additional fin additional again to make the circuit breaker radiating effect at the during operation good, and its operating device transmission be gear drive, thereby improve the transmission efficiency of circuit breaker, through the insulating cylinder assembly of optimizing, insulating level is high, and the seat material of being qualified for the next round of competitions changes into aluminium, and the lower carriage is the forged aluminium material, thereby makes the cost lower, and insulating cylinder assembly weight is less, the personnel's of being convenient for installation.

Drawings

FIG. 1 is the overall structure schematic diagram 1 of the present invention

Fig. 2 is the structure schematic diagram of the middle closing spring of the utility model

FIG. 3 is the overall structure schematic diagram 2 of the present invention

FIG. 4 is a schematic diagram of an energy storage unit

FIG. 5 is a schematic view of a main heat dissipation plate

FIG. 6 is a schematic view of an auxiliary heat sink

FIG. 7 is a schematic diagram of a closing unit

FIG. 8 is a schematic view of a brake separating unit

In the figure: 1. an upper wire outlet seat; 2. a vacuum arc-extinguishing chamber; 3. soft connection; 4. a lower bracket; 5. a lower wire outlet seat; 6. a conductive clip; 7. an insulating pull rod; 8. an auxiliary heat sink; 9. a primary heat sink sheet; 10. an insulating cylinder; 11. a brake separating button; 12. a chassis; 13. a switching-off release; 14. opening and closing indication boards; 15. a motor; 16. a main shaft; 17. a microswitch; 18. an energy storage indication board; 19. a connecting cam; 20. a closing release; 21. a closing button; 22. a closing spring;

23 crank arms 1,24 small connecting plates, 25 large connecting plates, 26 rotating blocks, 27 energy storage motors, 28 pinions, 29 transmission gears, 30 manual energy storage blocks, 31 large gears, 32 transmission wheels, 33 transmission claws, 34 cams, 35 crank arms 2, 36 gear shafts and 37 crank arms 3;

38 closing interlocking shaft, 39 closing half shaft, 40 closing push plate 1, 41 manual closing bent plate, 42 closing push plate 2,43 closing pawl

44 oil buffer, 45 crank arms 4,46 brake separating buckle plate shafts, 47 brake separating buckle plates, 48 brake separating half shafts, 49 brake separating push plates, 50 manual brake separating bent plates and 51 brake separating sinkers

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model provides a technical solution: the utility model provides a 10kV dipolar heavy current vacuum circuit breaker, including last wire outgoing seat 1, the bottom of going up wire outgoing seat 1 is provided with vacuum interrupter 2, vacuum interrupter 2's bottom is provided with flexible coupling 3, the bottom of flexible coupling 3 is provided with wire outgoing seat 5 down, the bottom of wire outgoing seat 5 is provided with insulating pull rod 7 down, utilize insulating pull rod 7, be convenient for the opening and shutting of vacuum interrupter 2, the top of going up wire outgoing seat 1 is provided with auxiliary cooling fin 8, utilize auxiliary cooling fin 8, be convenient for this circuit breaker heat dissipation, auxiliary cooling fin 8's bottom is provided with main radiating fin 9, utilize main radiating fin 9, be convenient for this circuit breaker heat dissipation, optimize the radiating effect, one side of going up wire outgoing seat 1 is provided with quick-witted case 12, the inside of quick-witted case 12 is provided with separating brake release 13, one side of separating brake release 13 is provided with closing spring 22, the required energy of circuit breaker is provided by closing spring 22, one side of closing spring 22 is provided with closing release 20, the bottom of closing release 20 is provided with connection cam 19, the bottom of connecting cam 19 is provided with micro-gap switch 17, one side of micro-gap 16 is provided with electric machine spindle 15.

One side of the flexible connection 3 is provided with a lower bracket 4, and one side of the lower bracket 4 is fixedly connected with one side of a lower wire outlet seat 5; utilize lower carriage 4, the personnel of being convenient for connect and support vacuum interrupter 2.

One side of the lower bracket 4 is provided with a conductive clamp 6, and the conductive clamp 6 is movably connected with one side of the flexible connector 3; by means of the conductive clip 6, smooth circulation of current inside the circuit breaker is facilitated.

An insulating cylinder 10 is arranged at the bottom of the auxiliary radiating fin 8, and a brake separating button 11 is arranged on one side of a brake separating release 13; with the insulating tube 10, the insulation level of the circuit breaker can be improved.

One side of the opening and closing button 11 is provided with an opening and closing indication board 14, and one side of the connecting cam 19 is provided with an energy storage indication board 18; utilize divide-shut brake sign 14, the personnel of being convenient for distinguish and operate the branch combined floodgate, utilize energy storage sign 18, can show the current energy storage condition.

A closing button 21 is arranged on one side of the closing release 20, and the bottom of the motor 15 is fixedly connected with the inner bottom wall of the case 12; and the closing button 21 is utilized to facilitate the control of closing by personnel.

A moving contact is arranged in the vacuum arc extinguish chamber 2 and is fixedly connected with one side of an insulating pull rod 7; because the moving contact is fixedly connected with one side of the insulating pull rod 7, the insulating pull rod 7 is convenient to drive the moving contact to move.

The upper wire outlet seat 1 and the lower wire outlet seat 5 are both made of aluminum, and the lower support 4 is made of forged aluminum; because the lower wire outlet seat 5 is made of aluminum and the lower support 4 is made of forged aluminum, the circuit breaker is low in cost.

The assembly of the large-current vacuum arc extinguish chamber comprises an insulating pull rod 7, a lower bracket 4, a conductive clamp 6, a flexible connection 3, a vacuum arc extinguish chamber 2, a main radiating fin 9, an auxiliary radiating fin 8 and an insulating cylinder 10. The circuit breaker insulating cylinder 10 is provided with two groups of symmetrical threaded holes, and each group of 4 threaded holes respectively correspond to the threaded holes in the lower support 4 and the main radiating fin 9. The lower bracket 4 and the main radiating fin 9 are connected and fixed on the insulating cylinder 10 through bolts and nuts. The arc extinguish chamber 2 is positioned by the lower bracket 4 and the main radiating fin 9. The main radiating fin 9 is fixed on the static end of the vacuum arc extinguish chamber, and the heat dissipation performance of the assembly is enhanced. The auxiliary radiating fins 8 are fixed to the main radiating fins 9 by bolts. Further meeting the heat dissipation requirement of the high-current circuit breaker. One end of the flexible connection 3 is connected with the movable end of the vacuum arc extinguish chamber 2 through the conductive clamp 6, and the other end is directly connected with the lower bracket 4. 7 one end of insulating pull rod be provided with the threaded rod, it is fixed with the screw hole that vacuum interrupter 2 moved the conducting rod outer end and establish, the 7 other ends of insulating pull rod are provided with the threaded rod equally for connect circuit breaker operating device, set up the convenience that the bi-polar threaded rod can increase the over-travel regulation.

The movable end of the vacuum arc extinguish chamber 2 is the movable conducting rod, the bottom of the vacuum arc extinguish chamber is provided with a threaded hole, the upper end of the insulating pull rod 7 can be screwed in the threaded hole, the lower end of the insulating pull rod 7 penetrates into the transmission block, and the rotating block is fixed at the lower end of the insulating pull rod 7 through two nuts. The upper end and the lower end of the insulated pull rod 7 are threaded rods. The distance of the upper end of the insulating pull rod 7 screwed into the movable end of the vacuum arc-extinguishing chamber can be adjusted, the position of the rotating block fixed at the lower end of the insulating pull rod 7 can also be adjusted,

as shown in fig. 3 and 4, the energy storage process: the energy storage motor 27 drives the pinion 28 to rotate clockwise, the pinion 28 drives the transmission gear 29, the transmission gear 29 drives the large gear 31 to rotate, the large gear 31 drives the gear shaft 36 to rotate, the gear shaft 36 drives the 37 crank arm 3, the 37 crank arm 3 rotates clockwise, energy storage of the closing spring 22 is completed, and the process can be completed manually through the manual energy storage block 30. The shafts are driven by gears, so that the transmission efficiency is high and the operation is stable.

A switching-on process: the closing spring 22 releases energy to drive the 37 crank arm 3 to rotate, the 37 crank arm 3 drives the gear shaft 36 to rotate, the gear shaft 36 drives the cam 34 to rotate clockwise, the cam 34 rotates to enable the 35 crank arm 2 to rotate, the 35 crank arm 2 drives the main shaft 16 to rotate, the main shaft 16 drives the 23 crank arm 1 to rotate, the 23 crank arm 1 enables the small connecting plate 24 connected with the 23 crank arm 1 through a pin to move downwards, the small connecting plate 24 enables the small connecting plate 24 to move downwards through the right end of the large connecting plate 25 connected with the small connecting plate through a pin, the middle of the large connecting plate 25 is connected with the case 12 through a pin, therefore, the left end of the large connecting plate 25 moves upwards, the rotating block 26 is connected with the left end of the large connecting plate 25 and moves upwards, the upper end and the lower end of the rotating block 26 are installed on the insulating pull rod 7 through nuts, the insulating pull rod 7 moves upwards, the insulating pull rod 7 is connected with the moving end of the vacuum arc extinguish chamber 2, and the moving end of the vacuum arc extinguish chamber 2 moves upwards to complete closing.

As shown in fig. 7, the closing coil 20 pushes 40 the closing push plate 1 or the manual closing curved plate 41 pushes 42 the closing push plate 2, the closing push plate 1 or the closing push plate 42 of 40 drives the closing half shaft 39 to rotate, a gap in the middle of the closing half shaft 39 is opened, the closing pawl 43 passes through the gap, the closing pawl 43 drives the closing interlocking shaft 38 to rotate, the closing pawl 43 does not block the cam 34, and the cam 34 is driven by the gear shaft 36 to complete the closing motion.

A brake opening process: as shown in figure 8, the manual opening curved plate 50 pushes the opening push plate 49, the opening push plate 49 drives the opening half shaft 48 to rotate, the opening of the opening half shaft 48 is opened, the opening buckle plate 47 passes through the opening, the opening buckle plate 47 drives the opening pawl 51, the opening pawl 51 gives way, and the crank arm 45 can rotate upwards to complete the opening action.

When the circuit breaker works, the current path of a main loop of the circuit breaker at a switching-on position is from an upper wire outlet seat 1 to a movable contact and a fixed contact of a vacuum arc-extinguishing chamber 2, then the movable contact and the fixed contact pass through a flexible connection 3, a conductive clamp 6, a lower bracket 4 and a lower wire outlet seat 5, the switching-on and the switching-off of the vacuum arc-extinguishing chamber 2 are pushed by an insulating pull rod 7 and a contact pressure spring, the energy required by the switching-on of the circuit breaker is provided by a switching-on spring 22, the energy storage can be completed by an external power supply driving motor 15 or manually by an energy storage handle, an energy storage indicator 18 displays the current energy storage condition as the prerequisite condition of an automatic reclosing sequence, an operating mechanism is subjected to energy storage again by an energy storage motor after one switching-on operation, when the operating mechanism is in a manual operation type, the manual energy storage again is required, when a manual switching-on button 21 is pressed or a switching-on tripping device 20 is started, the process is started, and the tripping mechanism releases the energy storage spring which is stored in advance, the movable contact in the vacuum arc extinguish chamber 2 is driven by the insulating pull rod 7 to move upwards by connecting the cam 19 and the crank arm rotating main shaft 16, the insulating pull rod 7 is driven by the large connecting plate, the movable contact in the vacuum arc extinguish chamber 2 is driven by the insulating pull rod 7 to move upwards until the contacts are contacted, simultaneously, the contact spring is pressed tightly to ensure that the main contact has proper contact pressure, the opening spring is also stretched and stored with energy in the closing process, when no power supply is debugged on site, a manual closing handle matched with a circuit breaker is used, the main shaft 16 is driven to rotate clockwise by pressing down the manual closing crank arm, so that the circuit breaker is closed, when the manual opening button 11 or the opening release 13 is pressed down, the opening process starts, the release mechanism starts to act under the action of the contact pressure and the opening spring, the movable contact in the vacuum arc extinguish chamber 2 moves downwards under the drive of the insulating pull rod 7, and the roller on the crank arm of the main shaft 16 is contacted with the oil buffer, finally reach the branch floodgate position, this circuit breaker major loop adopts insulating cylinder 10 composite insulation, installs additional fin again additional, and the radiating effect is good, and its operating device transmission is gear drive, and high transmission efficiency through the assembly of insulating cylinder 10 that has optimized, and insulating level is high, and the seat material of being qualified for the next round of competitions changes into aluminium, and lower carriage 4 is the wrought aluminium material to make the cost lower, and insulating cylinder 10 assembly weight is less, the personnel's of being convenient for installation.

Claims (10)

1. The utility model provides a 10kV two poles of earth heavy current vacuum circuit breaker, includes outlet base (1), the bottom of the last outlet base (1) is provided with vacuum interrupter (2), the bottom of vacuum interrupter (2) is provided with flexible coupling (3), the bottom of flexible coupling (3) is provided with down outlet base (5), the bottom of outlet base (5) is provided with insulating pull rod (7), its characterized in that down: the top of the upper wire outlet base (1) is provided with a main radiating fin (9) and an auxiliary radiating fin (8), and the main radiating fin (9) is fixedly connected with the auxiliary radiating fin (8); the improved wire outlet device is characterized in that a case (12) is arranged on one side of the upper wire outlet seat (1), an opening release (13) is arranged inside the case (12), a closing spring (22) is arranged on one side of the opening release (13), a closing release (20) is arranged on one side of the closing spring (22), a connecting cam (19) is arranged at the bottom of the closing release (20), a micro switch (17) is arranged at the bottom of the connecting cam (19), a main shaft (16) is arranged on one side of the micro switch (17), and a motor (15) is arranged at the bottom of the main shaft (16).

2. A 10kV bipolar high-current vacuum circuit breaker according to claim 1, wherein one side of the flexible connection (3) is provided with a lower bracket (4), and one side of the lower bracket (4) is connected with one side of the lower outlet base (5).

3. A 10kV bipolar high-current vacuum circuit breaker according to claim 2, wherein one side of the lower cradle (4) is provided with a conductive clip (6), and the conductive clip (6) is movably connected with one side of the flexible connection (3).

4. A10 kV two-pole high-current vacuum circuit breaker according to claim 1,

the energy storage motor (27) is connected with the small gear (28), the small gear (28) is connected with the transmission gear (29), the transmission gear (29) is connected with the large gear (31), the large gear (31) is connected with the gear shaft (36), and the gear shaft (36) is connected with the crank arm 3 (37).

5. A10 kV bipolar high-current vacuum circuit breaker according to claim 1,

a closing spring (22) is connected with a crank arm 3 (37), a gear shaft (36) is connected with the crank arm 3 (37), the gear shaft (36) is connected with a cam (34), the cam (34) is connected with a crank arm 2 (35), the crank arm 2 (35) is connected with a main shaft (16), the main shaft (16) is connected with a small connecting plate (24) through a crank arm 1 (23), the small connecting plate (24) is connected with a large connecting plate (25), and finally the large connecting plate (25) is connected with a case (12).

6. A 10kV bipolar large current vacuum circuit breaker according to claim 3, wherein the auxiliary heat sink (8) is provided at its bottom with an insulating cylinder (10), and one side of the tripping release (13) is provided with a tripping button (11).

7. The 10kV dipolar high-current vacuum circuit breaker according to claim 6, wherein one side of the opening button (11) is provided with a switch-on/off indication board (14), and one side of the connecting cam (19) is provided with an energy storage indication board (18).

8. The 10kV bipolar high-current vacuum circuit breaker according to claim 5, wherein a closing button (21) is arranged on one side of the closing release (20), and the bottom of the motor (15) is fixedly connected with the inner bottom wall of the case (12).

9. A10 kV dipolar high-current vacuum circuit breaker according to claim 6, characterized in that the interior of the vacuum interrupter (2) is provided with a movable contact, and the movable contact is fixedly connected with one side of the insulating pull rod (7).

10. The 10kV dipolar high-current vacuum circuit breaker according to claim 2, wherein the upper outlet base (1) and the lower outlet base (5) are both made of aluminum, and the lower bracket (4) is made of forged aluminum.

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