CN210628176U - High-voltage switch - Google Patents
High-voltage switch Download PDFInfo
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- CN210628176U CN210628176U CN201921904273.3U CN201921904273U CN210628176U CN 210628176 U CN210628176 U CN 210628176U CN 201921904273 U CN201921904273 U CN 201921904273U CN 210628176 U CN210628176 U CN 210628176U
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- 230000003068 static effect Effects 0.000 claims description 63
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a high-voltage switch, which relates to the technical field of power distribution.A main loop of the high-voltage switch adopts a structural arrangement form of a three-station (switch-on position, switch-off position and connection position) isolating switch at the upper end of a vacuum arc extinguish chamber, so as to achieve the purpose of closing and closing the grounding fault current through the vacuum arc extinguish chamber, prevent the risk of ablating a grounding contact when the isolating switch closes the grounding fault current, and greatly improve the capability and reliability of closing the grounding fault current; meanwhile, on the premise of ensuring the use performance and safety, the combined structure of the disconnecting switch and the vacuum circuit breaker is reasonably optimized, so that a component convenient to manufacture and assemble is formed, the product consistency is good, the assembly efficiency is greatly improved, and the production cost is effectively controlled.
Description
Technical Field
The utility model relates to a distribution technical field especially relates to a high-voltage switch.
Background
The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is widely applied to power distribution networks.
The isolating switch is a switch device used for isolating power supply, switching operation and connecting and cutting off a small current circuit and has no arc extinguishing function. When the disconnecting switch is in the opening position, the contact piece has an insulation distance meeting the specified requirement and an obvious disconnection mark; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. The isolating switch has no arc extinguishing capability, can only be used for switching on and off the circuit under the condition of no load current, and is used as an obvious disconnection point of the main wiring system and an obvious disconnection point of the system in the maintenance process.
High-voltage switch often uses isolator and vacuum circuit breaker cooperation, under guaranteeing performance and safe prerequisite, technical personnel in the art strive for the integrated configuration of reasonable optimization isolator and vacuum circuit breaker to make, operate and control cost.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a novel high voltage switch comprising a disconnector and a vacuum circuit breaker.
In order to achieve the purpose, the utility model provides a high-voltage switch, which comprises a sealing cabinet body, wherein the upper side of the sealing cabinet body is provided with a wire inlet sleeve, and the lower side of the sealing cabinet body is provided with a wire outlet sleeve; an isolating switch and a vacuum circuit breaker which are connected in series are arranged inside the sealed cabinet body, the isolating switch is a three-station isolating switch, and the isolating switch is electrically connected with a conductor of the wire inlet sleeve; the vacuum circuit breaker is electrically connected with the conductor of the outgoing line sleeve.
Further, the high-voltage switch also comprises a support plate and a grounding component;
the isolating switch comprises an isolating support, an isolating rotating shaft, an isolating contact knife, an isolating static contact and an isolating static contact seat, the isolating static contact is arranged on the isolating support, the isolating contact knife is fixedly connected with the isolating rotating shaft, a conductor at the near shaft end of the isolating contact knife is connected and electrically connected with the isolating static contact seat, and the far shaft end of the isolating contact knife is an isolating moving contact;
the grounding assembly comprises a grounding bracket and a three-phase grounding static contact fixed on the grounding bracket;
the vacuum circuit breaker comprises an arc extinguish chamber framework, a vacuum arc extinguish chamber and a switching-on structure, wherein the vacuum arc extinguish chamber is arranged on the arc extinguish chamber framework, a static end of the vacuum arc extinguish chamber is electrically connected with an isolation static contact seat, a moving end of the vacuum arc extinguish chamber is electrically connected with an electric conductor of a wire outlet sleeve, the moving end of the vacuum arc extinguish chamber is movably connected with the switching-on structure, and the switching-on structure controls the switching-off and switching-on actions of the static end and the moving end of the;
the isolation bracket, the grounding bracket and the arc extinguish chamber framework are arranged in parallel and are fixedly connected with the supporting plates at two sides;
the isolation rotating shaft is fixed above the vacuum circuit breaker through an isolation static contact seat; the isolation static contact is arranged above the isolation rotating shaft, and the grounding static contact is arranged on the side of the isolation rotating shaft; the isolation rotating shaft rotates, and the isolation moving contact and the isolation static contact are in a closing state when being abutted; the isolation moving contact and the grounding fixed contact are in a grounding state when being abutted; the isolation moving contact is in an opening state at the middle position of the isolation moving contact and the grounding fixed contact;
the isolating switch and the vacuum circuit breaker are fixedly connected through a support plate to form a high-voltage switch assembly, the high-voltage switch assembly is fixedly arranged in the high-voltage switch cabinet body through the support plate, and the isolating static contact is electrically connected with the electric conductor of the wire inlet sleeve; and the moving end of the vacuum arc extinguish chamber is electrically connected with the conductor of the outlet sleeve.
Further, the quiet end of vacuum interrupter includes by adjustable contact and lock nut, lock nut with adjustable contact passes through threaded connection for adjust adjustable contact and keep apart the conflict pressure of stationary contact seat, thereby realize the quiet end of vacuum interrupter and keep apart the hard joint of stationary contact seat, be used for adjusting the opening distance at the quiet end of separating brake state vacuum interrupter and moving end simultaneously, with the regulation of realization combined floodgate overtravel. The advantages are that: the closing overtravel adjustment is convenient, the intermediate connection part does not need to be disassembled, the structure is simple, and the assembly efficiency is high.
Furthermore, the isolation rotating shaft and the three-phase isolation contact knife are of a three-phase integrated structure; the isolation support and the three-phase isolation static contact are of a three-phase integrated structure.
Furthermore, the arc extinguish chamber framework is a three-phase integrated arc extinguish chamber framework, and a three-phase arc extinguish chamber accommodating cavity is arranged for assembling the vacuum arc extinguish chamber. The advantages are that: high assembly efficiency, high alignment precision and excellent insulating property.
Further, vacuum interrupter's combined floodgate mechanism includes switch main shaft and combined floodgate connecting lever, the one end fixed connection of switch main shaft and combined floodgate connecting lever, the other end of combined floodgate connecting lever with the end swing joint that moves of explosion chamber, the rotation of switch main shaft drives the quiet end motion of the relative explosion chamber of end in the casing of explosion chamber that moves of explosion chamber realizes vacuum interrupter separating brake or combined floodgate.
Furthermore, the switching-on connecting lever is of a cam structure, the switching-on mechanism further comprises a contact spring and a guide rod, the switching-on cam is movably connected with the guide rod, the guide rod is fixed at the movable end of the vacuum arc-extinguishing chamber, the contact spring is sleeved on the guide rod, and two ends of the contact spring respectively abut against the vacuum arc-extinguishing chamber and the switching-on cam and are in a compressed energy storage state; the switch main shaft rotates forwards or reversely, and the switching-off or switching-on action of the movable end and the static end of the vacuum arc extinguish chamber is realized through the linkage of the switching-on cam and the guide rod. The explosion chamber switch-on bounce control method has the advantages that the switch-on bounce value of the explosion chamber can be effectively reduced, and the bounce value is controlled within a required range.
Furthermore, the vacuum circuit breaker is in lap joint with the outgoing line sleeve through the three-phase outgoing line copper rod.
Furthermore, the outlet sleeve is arranged at the bottom of the high-voltage switch operating surface and is a bent angle sleeve, the vacuum circuit breaker is in lap joint with the bent angle sleeve horizontally arranged in three phases through a three-phase outlet copper bar, and the vacuum circuit breaker is connected with an arc extinguish chamber arranged in the three-phase vertical direction through the bending angle change of the three-phase copper bar.
Furthermore, the specific connection part of the three-phase copper rod adopts flexible connection transition, and the wire outlet position of the A-phase flexible connection is opposite to that of the B-phase and the C-phase. The advantages are that: the bus connection length is reduced and the electric field environment is improved by reasonably arranging the outlet positions of the flexible connection.
Furthermore, the switching-on mechanism of the vacuum arc extinguish chamber further comprises a main shaft supporting plate, one end of the main shaft supporting plate is connected with the three-phase integrated arc extinguish chamber framework, the other end of the main shaft supporting plate is connected to the main shaft in series, a pair of main shaft supporting plates are arranged on two sides of each phase of arc extinguish chamber, and the main shaft supporting plates are designed in a voltage-sharing structure. The advantages are that: the main shaft supporting plate can improve the local electric field environment and reduce the use of composite insulation used between phases.
The utility model discloses a following technological effect:
(1) the main circuit of the high-voltage switch adopts a structural arrangement form of a three-station (switch-on position, switch-off position and connection position) isolating switch at the upper end of a vacuum arc extinguish chamber, so that the aim of closing the grounding fault current through the vacuum arc extinguish chamber is fulfilled, the risk of burning a grounding contact generated when the isolating switch closes the grounding fault current is prevented, and the capability and reliability of closing the grounding fault current are greatly improved.
(2) The high-voltage switch that this embodiment provided, under guaranteeing performance and safety prerequisite, rationally optimize isolator and vacuum circuit breaker's integrated configuration, form the subassembly of being convenient for make, equipment, the product uniformity is good, has improved assembly efficiency simultaneously greatly to effective control manufacturing cost.
Drawings
Fig. 1 is a structural sectional view of a high voltage switch according to an embodiment of the present invention;
fig. 2 is a perspective view of the internal structure of the high voltage switch of fig. 1;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a cross-sectional view B-B of FIG. 3;
fig. 6 is a partially enlarged view of fig. 5.
Wherein:
1-a sealed cabinet body;
2-an isolating switch;
201-isolating support frame;
202-isolating a static contact;
203-isolated contact knife;
204-isolating stationary contact base;
205-isolating the rotating shaft;
206-a grounded stationary contact;
207-a grounded support;
3-a vacuum interrupter;
301-arc extinguishing chamber skeleton;
3011-an arc extinguishing chamber accommodating cavity;
302-switching the main shaft;
303-vacuum arc-extinguishing chamber;
304-a spindle support plate;
305-a closing cam;
306-contact spring;
307-a guide bar;
308-an adjustable contact;
309-locking nut;
310-soft connection fixed block;
311-a soft connection;
4-a support plate;
5-installing a wire outlet sleeve;
6-laying a wire outlet sleeve;
601-A phase outgoing line bus;
602-B phase outgoing line bus;
603-C phase outgoing line bus.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1-6, the utility model discloses a high-voltage switch, which comprises a sealed cabinet body 1, an isolating switch 2 and a vacuum circuit breaker 3; a three-phase high-voltage power grid wire inlet sleeve 5 is arranged above a side plate of the sealed cabinet body 1; an outlet sleeve 6 of a three-phase high-voltage power grid is arranged below a side plate of the sealed cabinet body 1; in the closing state of the high-voltage switch, a main loop of a high-voltage power grid is led in from an inlet bushing 5 above the high-voltage switch and led out from an outlet bushing 6 below the high-voltage switch through an isolating switch 2 and a vacuum circuit breaker 3. The inlet bushing 5 and the outlet bushing 6 are high-voltage bushings and are used for leading a high-voltage power grid into or out of the high-voltage switch and play roles in insulation and support.
In this embodiment, the isolating switch 2 is a three-position isolating switch, and includes an isolating support frame 201, an isolating stationary contact 202, an isolating contact knife 203, an isolating stationary contact base 204 and an isolating rotating shaft 205; the isolation static contact 202 is a conductor made of materials such as pure copper, copper alloy and the like, and the main body of the isolation support frame 201 is made of a composite insulating material; the isolation support frame 201 and the isolation static contact 202 form a three-phase integrated isolation static contact assembly through integrated injection molding, and the upper end of the isolation static contact 202 penetrates through the isolation support frame 201 and is used for being electrically connected with a conductor in the wire inlet sleeve 5; the isolation contact knife 203 comprises a conductor penetrating through the whole knife arm, the main body of the isolation rotating shaft 205 is made of a composite insulating material, the isolation contact knife 203 and the isolation rotating shaft 205 form a three-in-one isolation movable contact component through integrated injection molding, the isolation contact knives 203 are regularly arranged along the axial direction of the isolation rotating shaft 205, the conductors pre-embedded in the isolation contact knife 203 are exposed from two sides of the isolation contact knife 203, the conductor exposed part at the near shaft end is connected with and electrically connected with the isolation static contact seat 204 through a shaft, the conductor exposed part at the far shaft end is a movable contact 2031, and when the switch is switched on, the movable contact 2031 is connected with the isolation static contact; more specifically, the moving contact 2031 is a double-conductor structure, the lower end of the isolating static contact 202 is a fin-shaped structure, one side of the isolating static contact is narrower than the moving contact 2031, and the other side of the isolating static contact is wider than the moving contact 2031, when the switch is closed, the lower end of the isolating static contact 202 and the moving contact 2031 are abutted to form a clamping structure, a stable and reliable electrical connection is formed, the maximum rotation angle of the isolating contact knife 203 is limited, and specifically, the isolating static contact 202 is fixed above the isolating rotating shaft 205 through the isolating support 201. The isolation static contact 202 and the isolation moving contact 2031 both adopt a three-phase integrated structure, have high integration level and good consistency, and can effectively ensure simultaneous and combined three-phase alternating current power supply. The isolating switch adopts a three-station (switch-on position, switch-off position and connection position) design, achieves the purpose of closing the grounding fault current through the vacuum arc extinguish chamber, prevents the risk of burning the grounding contact when the isolating switch closes the grounding fault current, and greatly improves the capability and reliability of closing the grounding fault current.
The vacuum circuit breaker 3 is a component, and includes an arc extinguish chamber framework 301, a switch spindle 302, a vacuum arc extinguish chamber 303 and an arc extinguish chamber closing mechanism, in this embodiment, a main body of the arc extinguish chamber framework 301 is made of a composite insulating material, and is a three-phase integrated structure, and is provided with three arc extinguish chamber accommodating cavities 3011, on which three vacuum arc extinguish chambers 303 are installed, the arc extinguish chamber closing mechanism specifically includes a closing lever, a contact spring 306, a guide rod 307 and a spindle support plate 304, in this embodiment, the closing lever is preferably a closing cam 305, the switch spindle 302 is in bearing connection with the spindle support plate 304, the other end of the spindle support plate 304 is fixed on the arc extinguish chamber framework 301, the switch spindle 302 is fixedly connected with the cam 305, the closing cam 305 is movably connected with the guide rod 307, the guide rod 307 is fixed at a moving end 3032 of the vacuum arc extinguish chamber 303, the contact spring 306 is sleeved on the guide, in a compressed energy storage state; the switch main shaft 302 rotates forward or backward, and the moving end 3032 and the static end 3031 of the vacuum arc-extinguishing chamber 303 are switched off or switched on through the linkage of the switching-on cam 305 and the guide rod 307. The adoption of the closing cam 305 can effectively reduce the closing bounce value of the arc extinguish chamber and control the bounce value within a required range. Two sides of the moving end 3032 of each phase of vacuum arc-extinguishing chamber are provided with a pair of spindle supporting plates 304, the spindle supporting plates 304 are close to the arc-extinguishing chamber accommodating cavity 3011, the spindle supporting plates 304 adopt a voltage-sharing structure design, and the spindle supporting plates 304 can improve a local electric field environment and shield interphase electric arcs so as to replace composite insulating materials arranged between phases and reduce the use of the composite insulating materials used between phases.
In order to perform the overtravel adjustment of the switching-on of the vacuum arc-extinguishing chamber, a static end 3031 of the vacuum arc-extinguishing chamber 303 comprises an adjustable contact 308 and a locking nut 309, the vacuum arc-extinguishing chamber 303 is installed in an arc-extinguishing chamber accommodating cavity 3011 of the arc-extinguishing chamber support, the adjustable contact 308 is led out from a through hole which faces upwards and is slightly larger than the diameter of the adjustable contact 308 and smaller than the diameter of a body of the vacuum arc-extinguishing chamber 303, the locking nut 309 is in threaded connection with the adjustable contact 308 outside the arc-extinguishing chamber accommodating cavity 3011, the abutting pressure of the adjustable contact 308 and an isolation static contact base 204 can be adjusted, so that the static end 3031 of the vacuum arc-extinguishing chamber 303 and the isolation static contact base 204 are in hard connection, reliable electrical connection is ensured, and meanwhile, the relative position of the vacuum arc-extinguishing chamber 303.
During production and assembly, the three-phase isolation static contact base 204 is fixed on the adjustable contact 308 at the static end of the vacuum arc-extinguishing chamber 303 through screws, the isolation contact knife 203 and the vacuum circuit breaker 3 are assembled into a component, and the isolation support frame 201 and the arc-extinguishing chamber framework are fixed on two support plates 4 of the high-voltage switch cabinet in parallel, so that the isolation switch 2 and the vacuum circuit breaker 3 are combined into an integrated structure.
A grounding bracket 207 is further connected between the two support plates 4, the grounding bracket 207 is used for fixing a three-phase grounding static contact 208, the structure of the grounding static contact 208 is similar to that of the isolating static contact 202, the grounding static contact 208 can form stable electrical connection with the moving contact 2031, the maximum rotation angle of the isolating contact knife 203 is limited, and specifically, the grounding static contact 208 is arranged on the side of the isolating rotating shaft. The isolation contact knife 203 rotates within a certain angle range under the limit of the isolation static contact 202 and the grounding static contact 208, and is provided with three working positions, wherein the working positions comprise a switch-on position P1, a switch-off position P2 and a grounding position P3. In the embodiment, the isolation rotating shaft 205 is used as a center, an included angle of 90-120 degrees is formed between the switching-on position P1 and the grounding position P3, the switching-off position P2 is arranged in the middle of the switching-on position P1 and the grounding position P3, and a sufficient obvious disconnection point is formed between the switching-off position P2 and the switching-on position P1 and the grounding position P3.
In this embodiment, fig. 1 is a sectional view of a rear view of a high-voltage switch, an incoming bushing 5 is disposed on an upper portion of a side surface of a sealed cabinet 1, an outgoing bushing 6 is disposed at a bottom of a front surface of the sealed cabinet 1, the outgoing bushing 6 is an angled bushing, the three-phase outgoing bushing 6 is connected to a moving end of a three-phase vacuum arc-extinguishing chamber 303 through a three-phase outgoing copper rod (including an a-phase outgoing bus 601, a B-phase outgoing bus and a C-phase outgoing bus) and through a bending angle change of the outgoing copper rod, specifically, the outgoing copper rod 601 is transitionally connected to the moving end of the vacuum arc-extinguishing chamber 303 through a flexible connection 311, so as to prevent a stress from directly acting on the moving end of the vacuum arc-extinguishing chamber. Specifically, the end of the outgoing copper rod corresponds to the flexible connection fixing block 310, and the end of the flexible connection 311 is clamped between the flexible connection fixing block 310 and the end of the outgoing copper rod and is fixedly connected with the end of the outgoing copper rod through a bolt. And the A-phase flexible connection outgoing line position is opposite to the B-phase and the C-phase flexible connection outgoing line position, the bus connection length can be reduced and the electric field environment is improved by reasonably arranging the flexible connection outgoing line position.
The high-voltage switch that this embodiment provided, under guaranteeing performance and safety prerequisite, rationally optimize isolator and vacuum circuit breaker's integrated configuration, form the subassembly of being convenient for to make, equipment with isolator and vacuum circuit breaker, the product uniformity is good, has improved assembly efficiency simultaneously greatly to effective control manufacturing cost.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A high voltage switch, characterized by: the wire inlet sleeve is arranged on the upper side of the sealed cabinet body, and the wire outlet sleeve is arranged below the sealed cabinet body; an isolating switch and a vacuum circuit breaker which are connected in series are arranged inside the sealed cabinet body, the isolating switch is a three-station isolating switch, and the isolating switch is electrically connected with a conductor of the wire inlet sleeve; the vacuum circuit breaker is electrically connected with the conductor of the outgoing line sleeve.
2. The high voltage switch of claim 1, wherein: the device also comprises a supporting plate and a grounding component;
the isolating switch comprises an isolating support, an isolating rotating shaft, an isolating contact knife, an isolating static contact and an isolating static contact seat, the isolating static contact is arranged on the isolating support, the isolating contact knife is fixedly connected with the isolating rotating shaft, a conductor at the near shaft end of the isolating contact knife is connected and electrically connected with the isolating static contact seat, and the far shaft end of the isolating contact knife is an isolating moving contact;
the grounding assembly comprises a grounding bracket and a three-phase grounding static contact fixed on the grounding bracket;
the vacuum circuit breaker comprises an arc extinguish chamber framework, a vacuum arc extinguish chamber and a switching-on structure, wherein the vacuum arc extinguish chamber is arranged on the arc extinguish chamber framework, a static end of the vacuum arc extinguish chamber is electrically connected with an isolation static contact seat, a moving end of the vacuum arc extinguish chamber is electrically connected with an electric conductor of a wire outlet sleeve, the moving end of the vacuum arc extinguish chamber is movably connected with the switching-on structure, and the switching-on structure controls the switching-off and switching-on actions of the static end and the moving end of the;
the isolation bracket, the grounding bracket and the arc extinguish chamber framework are arranged in parallel and are fixedly connected with the supporting plates at two sides;
the isolation rotating shaft is fixed above the vacuum circuit breaker through an isolation static contact seat; the isolation static contact is arranged above the isolation rotating shaft, and the grounding static contact is arranged on the side of the isolation rotating shaft; the isolation rotating shaft rotates, and the isolation moving contact and the isolation static contact are in a closing state when being abutted; the isolation moving contact and the grounding fixed contact are in a grounding state when being abutted; the isolation moving contact is in an opening state at the middle position of the isolation moving contact and the grounding fixed contact;
the isolating switch and the vacuum circuit breaker are fixedly connected through a support plate to form a high-voltage switch assembly, the high-voltage switch assembly is fixedly arranged in the high-voltage switch cabinet body through the support plate, and the isolating static contact is electrically connected with the electric conductor of the wire inlet sleeve; and the moving end of the vacuum arc extinguish chamber is electrically connected with the conductor of the outlet sleeve.
3. The high voltage switch of claim 2, wherein: the static end of the vacuum arc extinguish chamber comprises an adjustable contact and a locking nut, the locking nut is arranged outside the arc extinguish chamber accommodating cavity, the adjustable contact is connected through threads and used for adjusting the contact pressure of the adjustable contact and the contact pressure of the isolation static contact seat, the static end of the vacuum arc extinguish chamber is connected with the isolation static contact seat in a hard mode, and meanwhile, the static end of the vacuum arc extinguish chamber in a switching-off state and the opening distance of the moving end of the vacuum arc extinguish chamber are adjusted to achieve the over-travel adjustment of switching-on.
4. The high voltage switch of claim 2, wherein: the isolation rotating shaft and the three-phase isolation contact knife are of a three-phase integrated structure; the isolation support and the three-phase isolation static contact are of a three-phase integrated structure.
5. The high voltage switch of claim 2, wherein: the switching-on mechanism of the vacuum arc extinguish chamber comprises a switch main shaft and a switching-on connecting lever, wherein the switch main shaft is fixedly connected with one end of the switching-on connecting lever, the other end of the switching-on connecting lever is movably connected with a movable end of the arc extinguish chamber, and the switch main shaft rotates to drive the movable end of the arc extinguish chamber to move relative to the static end of the arc extinguish chamber in a shell of the arc extinguish chamber, so that the switching-off or the switching-on of the vacuum arc extinguish chamber are realized.
6. The high voltage switch of claim 5, wherein: the switching-on connecting lever is of a cam structure, the switching-on mechanism further comprises a contact spring and a guide rod, the switching-on cam is movably connected with the guide rod, the guide rod is fixed at the movable end of the vacuum arc-extinguishing chamber, the contact spring is sleeved on the guide rod, and two ends of the contact spring respectively abut against the vacuum arc-extinguishing chamber and the switching-on cam and are in a compressed energy storage state; the switch main shaft rotates forwards or reversely, and the switching-off or switching-on action of the movable end and the static end of the vacuum arc extinguish chamber is realized through the linkage of the switching-on cam and the guide rod.
7. The high voltage switch of claim 6, wherein: the switching-on mechanism of the vacuum arc extinguish chamber also comprises a main shaft supporting plate, wherein one end of the main shaft supporting plate is connected with the arc extinguish chamber framework, and the other end of the main shaft supporting plate is connected with the switch main shaft through a bearing; and a pair of main shaft supporting plates are arranged on two sides of each phase of arc extinguish chamber, and the main shaft supporting plates are designed in a voltage-sharing structure.
8. The high voltage switch of claim 1, wherein: the vacuum circuit breaker is in lap joint with the outlet sleeve through the three-phase outlet copper bar.
9. The high voltage switch of claim 8, wherein: the outgoing line sleeve is arranged at the bottom of the high-voltage switch operating surface and is a bent angle sleeve, the vacuum circuit breaker is in lap joint with the bent angle sleeve horizontally arranged in three phases through a three-phase outgoing copper bar, and the three-phase outgoing line sleeve is connected with an arc extinguish chamber arranged in the three-phase vertical direction through the bending angle change of the three-phase copper bar.
10. The high voltage switch of claim 9, wherein: the three-phase copper rod is in soft connection transition at the specific connection part, and the wire outlet position of the soft connection of the phase A is opposite to that of the phase B and the phase C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921904273.3U CN210628176U (en) | 2019-11-06 | 2019-11-06 | High-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921904273.3U CN210628176U (en) | 2019-11-06 | 2019-11-06 | High-voltage switch |
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| Publication Number | Publication Date |
|---|---|
| CN210628176U true CN210628176U (en) | 2020-05-26 |
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| CN201921904273.3U Active CN210628176U (en) | 2019-11-06 | 2019-11-06 | High-voltage switch |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821271A (en) * | 2021-01-12 | 2021-05-18 | 北京清畅电力技术股份有限公司 | Environment-friendly switch |
| CN112928686A (en) * | 2021-02-02 | 2021-06-08 | 北京双杰电气股份有限公司 | Upper isolation inflatable switch cabinet |
| CN115602480A (en) * | 2022-12-12 | 2023-01-13 | 石家庄科林电气设备有限公司（Cn） | Three-position switch and three-position environment-friendly gas combined electric appliance ring main unit |
| CN118197856A (en) * | 2024-05-20 | 2024-06-14 | 厦门顾德益电气股份有限公司 | Circuit breaker structure and environment-friendly gas cabinet |
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2019
- 2019-11-06 CN CN201921904273.3U patent/CN210628176U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821271A (en) * | 2021-01-12 | 2021-05-18 | 北京清畅电力技术股份有限公司 | Environment-friendly switch |
| CN112928686A (en) * | 2021-02-02 | 2021-06-08 | 北京双杰电气股份有限公司 | Upper isolation inflatable switch cabinet |
| CN115602480A (en) * | 2022-12-12 | 2023-01-13 | 石家庄科林电气设备有限公司（Cn） | Three-position switch and three-position environment-friendly gas combined electric appliance ring main unit |
| CN115602480B (en) * | 2022-12-12 | 2023-02-28 | 石家庄科林电气设备有限公司 | Three-position switch and three-position environment-friendly gas combined electrical appliance ring main unit |
| CN118197856A (en) * | 2024-05-20 | 2024-06-14 | 厦门顾德益电气股份有限公司 | Circuit breaker structure and environment-friendly gas cabinet |
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| CP01 | Change in the name or title of a patent holder |
Address after: 361000 No.8 Xiangming Road (2nd floor, No.3 Factory Building), industrial zone, torch hi tech Zone (Xiang'an), Xiamen City, Fujian Province Patentee after: Xiamen Gudeyi Electric Co.,Ltd. Address before: 361000 No.8 Xiangming Road (2nd floor, No.3 Factory Building), industrial zone, torch hi tech Zone (Xiang'an), Xiamen City, Fujian Province Patentee before: XIAMEN GOOD EP ELECTRICAL CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high-voltage switch Granted publication date: 20200526 Pledgee: Agricultural Bank of China Limited Xiamen Pilot Free Trade Zone Branch Pledgor: Xiamen Gudeyi Electric Co.,Ltd. Registration number: Y2024980007472 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |