CN222380483U - A high voltage circuit breaker - Google Patents
A high voltage circuit breaker Download PDFInfo
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- CN222380483U CN222380483U CN202420022027.XU CN202420022027U CN222380483U CN 222380483 U CN222380483 U CN 222380483U CN 202420022027 U CN202420022027 U CN 202420022027U CN 222380483 U CN222380483 U CN 222380483U
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- circuit breaker
- linkage structure
- voltage circuit
- vacuum
- movably connected
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Abstract
本实用新型涉及一种高压断路器，涉及电力设备领域。本实用新型提出的一种高压断路器，包括壳体、第一联动结构和第二联动结构；壳体上固定有静刀座和真空断路器；第一联动结构设置于壳体上，第一联动结构上设置有多个动刀片，第一联动结构用于带动动刀片与静刀座进行合闸或分闸；第二联动结构设置于壳体上，第二联动结构与真空断路器真空灭弧室的动端传动连接，第二联动结构用于带动真空断路器进行合闸或分闸。本高压断路器能够同时具备断路器和隔离开关功能，其结构形式简单，安装方便，制作成本低，且能够满足36kV及40.5kV电压等级使用。
The utility model relates to a high-voltage circuit breaker, and relates to the field of power equipment. The utility model proposes a high-voltage circuit breaker, including a housing, a first linkage structure and a second linkage structure; a static knife seat and a vacuum circuit breaker are fixed on the housing; the first linkage structure is arranged on the housing, and a plurality of movable blades are arranged on the first linkage structure, and the first linkage structure is used to drive the movable blades and the static knife seat to close or open the switch; the second linkage structure is arranged on the housing, and the second linkage structure is connected to the movable end of the vacuum arc extinguishing chamber of the vacuum circuit breaker, and the second linkage structure is used to drive the vacuum circuit breaker to close or open the switch. The high-voltage circuit breaker can have the functions of a circuit breaker and an isolating switch at the same time, and its structure is simple, easy to install, and has a low manufacturing cost, and can meet the use of 36kV and 40.5kV voltage levels.
Description
Technical Field
The utility model relates to the field of power equipment, in particular to a high-voltage circuit breaker.
Background
The inventor researches and discovers that the current domestic ring main unit is mainly used for ring network power distribution, main circuit components such as a vacuum circuit breaker, a load switch and a disconnecting switch are arranged in the ring main unit, the whole main circuit is sealed in a totally-enclosed gas tank, and the vacuum circuit breaker and the disconnecting switch cannot be effectively arranged in the tank body under the condition of higher voltage level due to limited internal space of installation equipment.
Disclosure of utility model
The utility model aims to provide a high-voltage circuit breaker which can simultaneously have the functions of a vacuum circuit breaker and a disconnecting switch, and is simple in structure and convenient to install.
Embodiments of the present utility model are implemented as follows:
The utility model provides a high-voltage circuit breaker, which comprises a shell, a plurality of static knife holders and a vacuum circuit breaker, wherein the shell is fixed with the static knife holders and the vacuum circuit breaker;
The first linkage structure is arranged on the shell and is provided with a plurality of movable blades, and the first linkage structure is used for driving the movable blades to be switched on or off with the static tool apron;
The second linkage structure is arranged on the shell and is in transmission connection with the movable end of the vacuum arc-extinguishing chamber of the vacuum circuit breaker, and the second linkage structure is used for driving the movable end of the vacuum arc-extinguishing chamber of the vacuum circuit breaker to conduct switching-on or switching-off.
Further, a plurality of connecting seats are arranged on the shell, and the static end of the vacuum circuit breaker and the static tool apron are fixed on the connecting seats at the same time.
Further, an insulating shaft is arranged on the shell, one ends of the movable blades are movably connected to the insulating shaft, and the middle parts of the movable blades are movably connected with the first linkage structure.
Further, the first linkage structure comprises a plurality of first transmission crank arms and a transmission shaft, and two ends of the transmission shaft are movably connected to the shell;
One end of each first transmission crank arm is movably connected with the transmission shaft, and the other end of each first transmission crank arm is movably connected with the middle part of the movable blade.
Further, the shell is also provided with a plurality of grounding tool holders, the grounding tool holders are connected with grounding screws, and the grounding screws are sleeved with connecting copper pipes;
The first linkage structure drives the movable blade to be connected with the connecting copper pipe for grounding.
Further, the second linkage structure comprises a main shaft and a plurality of second transmission crank arms, one ends of the second transmission crank arms are movably connected with the main shaft, and the other ends of the second transmission crank arms are respectively and movably connected with the movable ends of the vacuum circuit breakers;
The middle parts of the second transmission crank arms are respectively and movably connected to a plurality of fixed shafts, and the fixed shafts are fixed on the shell.
Further, the vacuum circuit breaker comprises a vacuum arc-extinguishing chamber, wherein the static end of the vacuum arc-extinguishing chamber is fixed with the shell, and the output end of the movable end of the vacuum arc-extinguishing chamber is connected with a conductive column and an insulating pull rod through a screw rod;
The other end of the insulating pull rod is in transmission connection with the second linkage structure.
Further, the conductive column is connected with a conductive block through a contact finger spring, and the conductive block is fixed with the shell.
Further, one end of the insulating pull rod is connected with the conductive column, and the other end of the insulating pull rod is connected with a double-head screw rod through threads;
the double-headed screw is in transmission connection with the second linkage structure.
Further, the shell is provided with a groove.
The embodiment of the utility model has the beneficial effects that:
The high-voltage circuit breaker can simultaneously have the functions of the circuit breaker and the isolating switch, is simple in structure form, convenient to install and low in manufacturing cost, can meet the requirements of 36kV and 40.5kV voltage levels, simultaneously can synchronously drive the plurality of isolating switches to switch on, switch off and switch on and switch off in three positions of grounding through the first linkage structure so as to realize the synchronous power transmission, power failure and grounding maintenance functions of the three phases of the isolating switch, is more convenient to manufacture and better in consistency, and synchronously drives the movable end of the vacuum circuit breaker through the second linkage structure so as to realize the synchronous switching on and switch off of the three phases of the vacuum circuit breaker.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a high voltage circuit breaker according to an embodiment of the present utility model;
Fig. 2 is a schematic view showing a structure of a front side plate of the high voltage circuit breaker according to the embodiment of the present utility model.
The icons are 100-high-voltage circuit breaker, 110-shell, 111-front side plate, 112-rear side plate, 113-left side plate, 114-right side plate, 115-left connecting plate, 116-right connecting plate, 117-insulating plate, 118-connecting seat, 119-groove, 120-vacuum circuit breaker, 121-vacuum arc-extinguishing chamber, 122-insulating pull rod, 123-double-head screw, 124-conducting block, 130-second linkage structure, 131-main shaft, 132-second transmission crank arm, 133-fixed shaft, 140-isolating switch, 141-static knife holder, 142-movable knife blade, 143-insulating shaft, 150-first linkage structure, 151-first transmission crank arm, 152-transmission shaft, 160-grounding knife holder and 161-grounding screw.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-2, the high voltage circuit breaker 100 provided in this embodiment includes a housing 110, a first linkage structure 150 and a second linkage structure 130, wherein a plurality of static knife holders 141 and a vacuum circuit breaker 120 are fixed on the housing 110, the first linkage structure 150 is disposed on the housing 110, the first linkage structure 150 is provided with a plurality of moving blades 142, the first linkage structure 150 is used for driving the moving blades 142 to close or open with the static knife holders 141, the second linkage structure 130 is disposed on the housing 110, the second linkage structure 130 is in transmission connection with a moving end of a vacuum arc-extinguishing chamber of the vacuum circuit breaker 120, and the second linkage structure 130 is used for driving the moving end of the vacuum arc-extinguishing chamber of the vacuum circuit breaker 120 to close or open.
It can be understood that the first linkage mechanism drives the movable blade 142 and the static blade holder 141 to switch on or off to realize the power transmission and outage functions of the isolating switch 140, and the second linkage mechanism 130 acts to realize the switching on or off of the vacuum circuit breaker 120. The high-voltage circuit breaker 100 has the advantages of simple structural form, convenient installation and low manufacturing cost, and can meet the voltage class of 36kV and above.
In the present embodiment, referring to fig. 1-2, a high voltage circuit breaker 100 includes a housing 110.
Specifically, the housing 110 includes a front side plate 111 and a rear side plate 112, upper end portions of both sides of the front side plate 111 and the rear side plate 112 are connected and fixed with a left side plate 113 and a right side plate 114 by fasteners, lower end portions of both sides of the front side plate 111 and the rear side plate 112 are connected and fixed with a left connecting plate 115 and a right connecting plate 116 by fasteners, and insulating plates 117 are connected to lower ends of the left connecting plate 115 and the right connecting plate 116 by fasteners.
Wherein, the front side plate 111 and the rear side plate 112 are clamped and fixed with a plurality of connecting seats 118, a plurality of conductive blocks 124 and a plurality of fixing shafts 133.
Wherein, the left connection plate 115 and the right connection plate 116 are fixed with an insulation shaft 143.
A plurality of grounding tool holders 160 are fixed on the insulating plate 117, a grounding screw 161 for grounding is connected to the plurality of grounding tool holders 160, and a connecting copper pipe is sleeved on the grounding screw 161.
Wherein the side plates are all made of high performance insulating plates 117.
Among them, grooves 119 are formed in the front side plate 111 and the rear side plate 112, so that the insulation performance can be improved.
In the present embodiment, referring to fig. 2, the high voltage circuit breaker 100 includes a vacuum circuit breaker 120.
Specifically, the vacuum circuit breaker 120 includes a vacuum interrupter 121, a conductive post (not shown), an insulating pull rod 122, and a double-headed screw 123, wherein the output end of the movable end of the vacuum interrupter 121 is connected to the insulating pull rod 122 through a screw, one end of the insulating pull rod 122 is connected to the conductive post, the other end is provided with a nut and is connected to one end of the double-headed screw 123 through a screw thread, and the other end of the double-headed screw 123 is in transmission connection with a second transmission crank arm 132 of the second linkage 130.
The conductive block 124 disposed on the rear side plate 112 is provided with a through hole, and the conductive column penetrates through the through hole and is connected with the contact finger spring in the through hole, and the conductive column moves along with the moving end of the arc extinguishing chamber, so that the effective connection of the conductors is ensured, the connection conductivity of the conductive column and the conductive column is excellent, and the electric field is better.
The static end of the vacuum interrupter 121 is fixed to the connection base 118, and the static seat 141 of the isolating switch 140 is pressed and fixed to the upper end surface of the connection base 118 by the static end of the vacuum interrupter 121.
Wherein the insulating pull rod 122 houses a spring.
The nut and the double-headed screw 123 at the tail of the insulating pull rod 122 can be adjusted, so that the opening distance and the overtravel of the switch can be adjusted, and the adjustment is convenient.
It can be understood that the second linkage 130 drives the conductive column to act by driving the insulating pull rod 122, and the conductive column further drives the moving end of the vacuum arc-extinguishing chamber 121 to provide contact pressure for the arc-extinguishing chamber, so as to realize closing and opening of the vacuum circuit breaker 120.
In the present embodiment, the vacuum circuit breakers 120 are arranged in three and longitudinally. In other embodiments, the number of vacuum interrupters 120 is selected based on the actual implementation.
In this embodiment, referring to fig. 2, the high voltage circuit breaker 100 includes a second linkage 130.
Specifically, the second linkage structure 130 includes a main shaft 131 and three second transmission crank arms 132, one ends of the three second transmission crank arms 132 are movably connected to the main shaft 131, the other ends of the three second transmission crank arms 132 are respectively and movably connected to the double-headed screws 123 of the plurality of vacuum circuit breakers 120, the middle parts of the three second transmission crank arms 132 are respectively and movably connected to a plurality of fixed shafts 133, and the plurality of fixed shafts 133 are fixed on the rear side plate 112 of the housing 110.
The second transmission crank arm 132 comprises two C-shaped plates, and the middle openings of the two C-shaped plates penetrate through the fixed shaft 133 and are movably connected with the fixed shaft 133. One end of the two C-shaped plates clamps the main shaft 131 and is movably connected with the main shaft 131 through a shaft pin, the other end clamps a connecting block and is movably connected with the connecting block through a shaft pin, and the double-end screw 123 is fixed on the connecting block.
It can be understood that the main shaft 131 moves left and right, and the three second transmission crank arms 132 synchronously drive the double-headed screws 123 of the vacuum circuit breaker 120B phase, so as to realize synchronous switching-on and switching-off of the vacuum circuit breaker 120A phase.
In the present embodiment, referring to fig. 1-2, the high voltage circuit breaker 100 includes a disconnecting switch 140.
Specifically, the isolating switch 140 includes a stationary blade holder 141 and a movable blade 142. One end of the movable blade 142 is hinged on the fish insulation shaft 143, and the middle part of the movable blade 142 is movably connected with the first transmission crank arm 151 of the first linkage structure 150. The static tool holder 141 is pressed and fixed on the connecting seat 118.
The movable blade 142, the static blade holder 141 and the grounding blade holder 160 are all located on the same arc, so that the first linkage structure 150 can drive the movable blade 142 and the static blade holder 141 to switch on or off and be connected with the grounding blade holder 160 for grounding.
In this embodiment, the three phases of the isolating switch 140 are arranged longitudinally.
In the present embodiment, referring to fig. 1-2, the high voltage circuit breaker 100 includes a first linkage structure 150.
Specifically, the first linkage structure 150 includes three first transmission crank arms 151 and a transmission shaft 152, two ends of the transmission shaft 152 are movably connected to the left connection plate 115 and the right connection plate 116, one end of each of the three first transmission crank arms 151 is movably connected to the transmission shaft 152, and the other end is movably connected to the middle of the movable blade 142.
Wherein, the transmission shaft 152 is a square main shaft 131.
The first transmission crank arm 151 is also formed by two arc plates, one end of the first transmission crank arm 151 is provided with a through hole, and the first transmission crank arm 151 is sleeved and fixed on the transmission shaft 152 through the through hole. The other end of the first transmission crank arm 151 is movably connected with one end of a connecting sheet, and the other end of the connecting sheet is movably connected with the middle part of the movable blade 142 through a shaft pin.
It can be understood that the transmission shaft 152 is rotated to synchronously drive the three moving blades 142 to be connected with the static blade holder 141 to realize switching on, drive the moving blades 142 to be separated from the static blade holder 141 to realize switching off, and drive the moving blades 142 to be connected with the grounding blade holder 160 to realize grounding. The disconnecting switch 140 is driven to switch among three positions of closing, opening and grounding through the first linkage structure 150, so that the functions of power transmission, power failure and grounding maintenance of the disconnecting switch 140 are realized, meanwhile, the manufacturing is more convenient, and the three-phase consistency is better.
In summary, the high-voltage circuit breaker 100 of the utility model can simultaneously have the functions of the vacuum circuit breaker 120 and the disconnecting switch 140, has simple structure form, convenient installation and low manufacturing cost, can meet the voltage level of 36kV and 40.5kV, simultaneously can synchronously drive the switching of the disconnecting switches 140 at three positions of closing, opening and grounding through the first linkage structure 150 so as to realize the synchronous power transmission, power interruption and grounding maintenance functions of the three phases of the disconnecting switch 140, and simultaneously has more convenient manufacturing and better consistency, and synchronously drives the movable end of the vacuum circuit breaker 120 through the second linkage structure 130 so as to realize the synchronous closing and opening of the three phases of the vacuum circuit breaker 120.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The high-voltage circuit breaker is characterized by comprising a shell, wherein a plurality of static knife holders and a vacuum circuit breaker are fixed on the shell;
the first linkage structure is arranged on the shell and is provided with a plurality of movable blades, and the first linkage structure is used for driving the movable blades to be switched on or off with the static tool apron;
The second linkage structure is arranged on the shell and is in transmission connection with the movable end of the vacuum arc-extinguishing chamber of the vacuum circuit breaker, and the second linkage structure is used for driving the movable end of the vacuum arc-extinguishing chamber of the vacuum circuit breaker to conduct switching-on or switching-off.
2. The high voltage circuit breaker according to claim 1, wherein a plurality of connecting seats are provided on the housing, and the stationary end of the vacuum circuit breaker and the stationary blade holder are simultaneously fixed on the connecting seats.
3. The high-voltage circuit breaker according to claim 1, wherein an insulating shaft is arranged on the housing, one ends of the plurality of moving blades are movably connected to the insulating shaft, and the middle parts of the plurality of moving blades are movably connected with the first linkage structure.
4. The high voltage circuit breaker of claim 3, wherein the first linkage structure comprises a plurality of first transmission crank arms and a transmission shaft, and two ends of the transmission shaft are movably connected to the housing;
One end of each first transmission crank arm is movably connected with the transmission shaft, and the other end of each first transmission crank arm is movably connected with the middle part of the movable blade.
5. The high-voltage circuit breaker according to claim 1, wherein the shell is further provided with a plurality of grounding tool holders, the grounding tool holders are connected with grounding screws, and the grounding screws are sleeved with connecting copper pipes;
The first linkage structure drives the movable blade to be connected with the connecting copper pipe for grounding.
6. The high voltage circuit breaker of claim 1, wherein the vacuum circuit breaker comprises a plurality of;
the second linkage structure comprises a main shaft and a plurality of second transmission crank arms, one ends of the second transmission crank arms are movably connected with the main shaft, and the other ends of the second transmission crank arms are respectively and movably connected with the movable ends of the vacuum arc-extinguishing chambers of the vacuum circuit breakers;
The middle parts of the second transmission crank arms are respectively and movably connected to a plurality of fixed shafts, and the fixed shafts are fixed on the shell.
7. The high-voltage circuit breaker according to claim 1, wherein the vacuum circuit breaker comprises a vacuum interrupter, a static end of the vacuum interrupter is fixed with the housing, and a movable end output end of the vacuum interrupter is connected with a conductive column and an insulating pull rod through a screw rod;
The other end of the insulating pull rod is in transmission connection with the second linkage structure.
8. The high voltage circuit breaker of claim 7, wherein the conductive post is connected to a conductive block by a finger spring, the conductive block being secured to the housing.
9. The high voltage circuit breaker according to claim 7, wherein one end of the insulating pull rod is connected with the conductive post, and the other end is connected with a double-ended screw rod through threads;
the double-headed screw is in transmission connection with the second linkage structure.
10. The high voltage circuit breaker of claim 1, wherein the housing is grooved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420022027.XU CN222380483U (en) | 2024-01-04 | 2024-01-04 | A high voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420022027.XU CN222380483U (en) | 2024-01-04 | 2024-01-04 | A high voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222380483U true CN222380483U (en) | 2025-01-21 |
Family
ID=94254664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420022027.XU Active CN222380483U (en) | 2024-01-04 | 2024-01-04 | A high voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222380483U (en) |
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- 2024-01-04 CN CN202420022027.XU patent/CN222380483U/en active Active
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