CN212848188U - Light-weight vacuum circuit breaker - Google Patents
Light-weight vacuum circuit breaker Download PDFInfo
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- CN212848188U CN212848188U CN202022290608.6U CN202022290608U CN212848188U CN 212848188 U CN212848188 U CN 212848188U CN 202022290608 U CN202022290608 U CN 202022290608U CN 212848188 U CN212848188 U CN 212848188U
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- arc extinguishing
- vacuum
- vacuum arc
- extinguishing chamber
- lever
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a light weight type vacuum circuit breaker, including operating device, vacuum arc extinguishing mechanism and support, operating device with vacuum arc extinguishing mechanism is fixed in on the support, operating device is including pushing down drive unit, the stroke control pole and the rotary drive unit that is used for adjusting the contact stroke, push down drive unit with stroke control pole one end is rotated and is connected, stroke control pole's the other end with the rotary drive unit rotates and connects, rotary drive unit top is provided with vacuum arc extinguishing mechanism. The utility model adopts the above structure a light weight type vacuum circuit breaker has unique coupling mechanism and operating angle's control, and transmission quality is little, and the separating brake power is little, has reduced the use of part, simplifies the production and processing process.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a light weight type vacuum circuit breaker.
Background
The vacuum circuit breaker is a high-vacuum circuit breaking protection device with arc extinguishing media and insulating media in contact gaps after arc extinguishing, and is applied to a power distribution network more widely, but the parts and assembly work of the existing vacuum circuit breaker are complex, so that the whole weight of the vacuum circuit breaker is large, and the energy consumption loss in the working process is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a light weight type vacuum circuit breaker to it is complicated to solve above-mentioned vacuum circuit breaker structure, and the part is more, assembles the great problem of difficulty and energy consumption.
In order to achieve the above object, the utility model provides a light-weight type vacuum circuit breaker, including operating device, vacuum arc extinguishing mechanism and support, operating device with vacuum arc extinguishing mechanism is fixed in on the support, operating device is including pushing down drive unit, the stroke control pole and the rotary drive unit that is used for adjusting the contact stroke, push down drive unit with stroke control pole one end is rotated and is connected, the other end of stroke control pole with the rotary drive unit rotates and connects, the rotary drive unit top is provided with vacuum arc extinguishing mechanism.
Preferably, the pressing driving unit comprises a main shaft, a connecting rod fixedly connected with the main shaft and a lever, one end of the lever is rotatably connected with the connecting rod, the other end of the lever is rotatably connected with the stroke adjusting rod, and the middle of the lever is rotatably connected with a supporting shaft.
Preferably, the connecting rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected with the main shaft, the other end of the second connecting rod is rotatably connected with the lever, and the other end of the second connecting rod is rotatably connected with the main shaft.
Preferably, the rotary transmission unit comprises a connecting lever fixedly connected with one end of a main shaft of the circuit breaker, a push plate fixedly connected with the other end of the main shaft of the circuit breaker, an insulating pull rod connected with the push plate through a nut and a contact spring connected with the insulating pull rod, and the connecting lever is rotatably connected with the stroke adjusting rod.
Preferably, the breaker main shaft penetrates through the crank arm and is fixedly connected with a connecting plate, the connecting plate is fixedly connected with one end of a tripping spring, and the other end of the tripping spring is fixed on the support.
Preferably, the operating mechanism further comprises a brake separating limiter arranged on one side of the push plate and connected with the insulating pull rod, a brake separating buffer arranged on one side of the brake separating spring and used for absorbing residual energy of the brake separating spring, and an auxiliary switch for the opening and closing position connected with the brake separating buffer.
Preferably, the vacuum arc extinguishing mechanism comprises a vacuum arc extinguishing chamber pole, a fixed contact corresponding to the contact spring and a vacuum arc extinguishing chamber connected with the insulating pull rod, the vacuum arc extinguishing chamber pole is fixed on the support, and the vacuum arc extinguishing chamber pole internally comprises the insulating pull rod, the contact spring, the fixed contact and the vacuum arc extinguishing chamber.
Optimized, both ends are connected with explosion chamber upper portion connecting piece and explosion chamber lower part connecting piece respectively about the vacuum interrupter, explosion chamber upper portion connecting piece one side is fixed in through the vacuum interrupter support on the support, explosion chamber upper portion connecting piece opposite side with explosion chamber lower part connecting piece is connected with inlet wire end and leading-out terminal respectively, the vacuum interrupter both sides are provided with the insulating boot.
Preferably, the vacuum arc extinguish chamber support is made of engineering plastics, and the insulating cover is of a thin-wall open structure.
Therefore, the utility model adopts the above structure a light-weight type vacuum circuit breaker has following beneficial effect:
1. the unique connecting mechanism has the advantages of small transmission quality, high speed, small main shaft torque and small brake-separating force due to the control of a unique operating angle, reduces the use and assembly workload of parts, and simplifies the production and machining process.
2. The insulating cover of the vacuum arc extinguishing mechanism adopts an open structure, so that heat dissipation is facilitated, and energy loss is reduced.
3. The parts are made of environment-friendly materials with light weight, so that the environmental pollution and the weight of the circuit breaker are reduced.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic view of an embodiment of a light-weight vacuum circuit breaker according to the present invention;
fig. 2 is a schematic diagram of an operating mechanism of an embodiment of a light-weight vacuum circuit breaker according to the present invention;
fig. 3 is a schematic diagram of a closing operation process of an embodiment of the light-weight vacuum circuit breaker of the present invention;
fig. 4 is a schematic view of a vacuum arc extinguishing mechanism of an embodiment of the light-weight vacuum circuit breaker of the present invention.
In the figure: 1. a main shaft; 2. a connecting rod; 3. a lever; 4. a stroke adjusting rod; 5. a crank arm; 6. pushing the plate; 7. a support shaft; 8. an insulating pull rod; 9. a contact spring; 10. vacuum arc extinguishing pole column; 11. a vacuum arc-extinguishing chamber; 12. an arc extinguish chamber upper connecting piece; 13. a lower connecting piece of the arc extinguish chamber; 14. a vacuum arc-extinguishing chamber support; 15. an insulating cover; 16. an opening and closing position auxiliary switch; 17. a brake separating buffer; 18. a brake separating spring; 19. a circuit breaker main shaft; 20. separating brake position limiter.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following describes embodiments of the present invention with reference to the accompanying drawings. Fig. 1 is a schematic view of an embodiment of a light-weight vacuum circuit breaker according to the present invention; fig. 2 is a schematic diagram of an operating mechanism of an embodiment of a light-weight vacuum circuit breaker according to the present invention; fig. 3 is a schematic diagram of a closing operation process of an embodiment of the light-weight vacuum circuit breaker of the present invention; fig. 4 is a schematic view of a vacuum arc extinguishing mechanism of an embodiment of the light-weight vacuum circuit breaker of the present invention. As shown in the figure, the utility model provides a light weight type vacuum circuit breaker, including operating device, vacuum arc extinguishing mechanism and support, operating device and vacuum arc extinguishing mechanism are fixed in on the support, and operating device is including pushing down drive unit, the stroke control pole 4 and the rotary transmission unit that is used for adjusting the contact stroke, pushes down drive unit and stroke control pole 4 one end and rotates to be connected, and stroke control pole 4's the other end rotates with the rotary transmission unit to be connected, and the rotary transmission unit top is provided with vacuum arc extinguishing mechanism. The pressing-down driving unit comprises a main shaft 1, a connecting rod 2 fixedly connected with the main shaft and a lever 3 with one end rotatably connected with the connecting rod 2, the other end of the lever 3 is rotatably connected with a stroke adjusting rod 4, and the middle part of the lever 3 is rotatably connected with a supporting shaft 7. The connecting rod 2 comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected with the main shaft 1, one end of the second connecting rod is rotatably connected with the other end of the first connecting rod, and the other end of the second connecting rod is rotatably connected with the lever 3.
The rotary transmission unit comprises a crank arm 5 fixedly connected with one end of a breaker main shaft 19, a push plate 6 fixedly connected with the other end of the breaker main shaft 19, an insulating pull rod 8 connected with the push plate 6 through a nut and a contact spring 9 connected with the insulating pull rod 8, and the crank arm 5 is rotatably connected with the stroke adjusting rod 4. The breaker main shaft 19 passes through the crank arm 5 and is fixedly connected with a connecting plate, the connecting plate is fixedly connected with one end of the opening spring 18, and the other end of the opening spring 18 is fixed on the bracket. The operating mechanism further comprises a brake separating limiter 20 arranged on one side of the push plate 6 and connected with the insulating pull rod 8, a brake separating buffer 17 arranged on one side of the brake separating spring 18 and used for absorbing residual energy of the brake separating spring 18, and an auxiliary switch 16 at the brake separating position and connected with the brake separating buffer 17.
The vacuum arc extinguishing mechanism comprises a vacuum arc extinguishing chamber pole 10, a fixed contact corresponding to the contact spring 9 and a vacuum arc extinguishing chamber 11 connected with the insulating pull rod 8, the vacuum arc extinguishing chamber pole 10 is fixed on the support, and the vacuum arc extinguishing chamber pole 10 internally comprises the insulating pull rod 8, the contact spring 9, the fixed contact and the vacuum arc extinguishing chamber 11. The upper and lower both ends of vacuum interrupter 11 are connected with explosion chamber upper portion connecting piece 12 and explosion chamber lower part connecting piece 13 respectively, and two strong points about using, the rational distribution atress can bear the switch and cut off and peak short circuit withstand current, and explosion chamber upper portion connecting piece 12 one side is fixed in through vacuum interrupter support 14 on the support, vacuum interrupter support 14 has optimized the structure through mechanical strength's calculation, has reduced the use of material, has played the effect of supporting vacuum interrupter 11 and connecting from top to bottom, explosion chamber upper portion connecting piece 12 opposite side with explosion chamber lower part connecting piece 13 is connected with inlet wire end and outlet terminal respectively, and vacuum interrupter 11 both sides are provided with insulating boot 15. The insulating cover 15 is of a thin-wall open structure, the insulating cover 15 with different wall thicknesses can be selected according to the voltage-resistant grade of the circuit breaker, the open structure of the insulating cover 15 is favorable for heat dissipation, energy loss is reduced by quick release of heat, and the circuit breaker is energy-saving and environment-friendly.
The utility model discloses a concrete implementation process does: when the breaker is switched on, the main shaft rotates anticlockwise, the main shaft drives the connecting rod to move upwards, then the lever is driven to rotate around the supporting shaft, the stroke adjusting rod is pressed downwards, then the connecting lever is pushed downwards, the breaker main shaft rotates anticlockwise, then the push plate is pushed to move upwards, finally the insulating pull rod is pushed to move upwards, the contact spring connected with the insulating pull rod is in contact with the corresponding static contact, the insulating pull rod continues to be pushed upwards, the pressure between the contact spring and the static contact is guaranteed, and the switching-on process is completed.
The opening process is opposite to the closing process, the opening spring releases energy to drive the main shaft of the circuit breaker to rotate clockwise, the connecting lever is pulled upwards, the push plate moves downwards, then the insulating pull rod moves downwards quickly, and meanwhile, the contact spring releases energy to guarantee the opening speed and complete the opening process.
Therefore, the light-weight vacuum circuit breaker adopting the structure has the advantages that the unique connecting mechanism is adopted, the transmission quality is small, the speed is high, the control of the unique operating angle ensures that the main shaft torque is small, the brake separating force is small, the use and assembly workload of parts is reduced, and the production and processing process is simplified; the insulating cover of the vacuum arc extinguishing mechanism adopts an open structure, so that heat dissipation is facilitated, and energy loss is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (9)
1. The utility model provides a light-weight type vacuum circuit breaker, includes operating device, vacuum arc extinguishing mechanism and support, operating device with vacuum arc extinguishing mechanism is fixed in on the support, its characterized in that: operating device is including pushing down drive unit, stroke control pole and the rotatory transmission unit that is used for adjusting the contact stroke, push down drive unit with stroke control pole one end is rotated and is connected, the other end of stroke control pole with rotatory transmission unit rotates and connects, rotatory transmission unit top is provided with vacuum arc extinguishing mechanism.
2. A lightweight vacuum interrupter as claimed in claim 1, wherein: the pressing driving unit comprises a main shaft, a connecting rod fixedly connected with the main shaft and a lever, one end of the lever is rotatably connected with the connecting rod, the other end of the lever is rotatably connected with the stroke adjusting rod, and the middle of the lever is rotatably connected with a supporting shaft.
3. A lightweight vacuum interrupter as claimed in claim 2, wherein: the connecting rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected with the main shaft, one end of the second connecting rod is rotatably connected with the other end of the first connecting rod, and the other end of the second connecting rod is rotatably connected with the lever.
4. A lightweight vacuum interrupter as claimed in claim 1, wherein: the rotary transmission unit comprises a connecting lever fixedly connected with one end of a breaker main shaft, a push plate fixedly connected with the other end of the breaker main shaft, an insulating pull rod connected with the push plate through a nut, and a contact spring connected with the insulating pull rod, wherein the connecting lever is rotatably connected with the stroke adjusting rod.
5. A light-weight vacuum interrupter as claimed in claim 4, wherein: the breaker main shaft passes the connecting lever and fixedly connected with connecting plate, connecting plate and separating brake spring one end fixed connection, the separating brake spring other end is fixed in on the support.
6. A light-weight vacuum interrupter as claimed in claim 5, wherein: the operating mechanism further comprises a brake separating limiter arranged on one side of the push plate and connected with the insulating pull rod, a brake separating buffer arranged on one side of the brake separating spring and used for absorbing residual energy of the brake separating spring, and an auxiliary switch for the brake separating position and connected with the brake separating buffer.
7. A light-weight vacuum interrupter as claimed in claim 4, wherein: the vacuum arc extinguishing mechanism comprises a vacuum arc extinguishing chamber pole column, a fixed contact corresponding to the contact spring and a vacuum arc extinguishing chamber connected with the insulating pull rod, the vacuum arc extinguishing chamber pole column is fixed on the support, and the vacuum arc extinguishing chamber pole column is internally provided with the insulating pull rod, the contact spring, the fixed contact and the vacuum arc extinguishing chamber.
8. A lightweight vacuum interrupter as claimed in claim 7, wherein: the vacuum arc extinguishing chamber upper and lower ends are connected with arc extinguishing chamber upper connecting piece and arc extinguishing chamber lower connecting piece respectively, arc extinguishing chamber upper connecting piece one side is fixed in through the vacuum arc extinguishing chamber support on the support, arc extinguishing chamber upper connecting piece opposite side with arc extinguishing chamber lower connecting piece is connected with inlet wire end and leading-out terminal respectively, the vacuum arc extinguishing chamber both sides are provided with the insulating boot.
9. A lightweight vacuum interrupter as claimed in claim 8, wherein: the vacuum arc extinguish chamber support is made of engineering plastics, and the insulating cover is of a thin-wall open structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022290608.6U CN212848188U (en) | 2020-10-15 | 2020-10-15 | Light-weight vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022290608.6U CN212848188U (en) | 2020-10-15 | 2020-10-15 | Light-weight vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212848188U true CN212848188U (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022290608.6U Active CN212848188U (en) | 2020-10-15 | 2020-10-15 | Light-weight vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212848188U (en) |
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2020
- 2020-10-15 CN CN202022290608.6U patent/CN212848188U/en active Active
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