CN215645825U - Double-air-chamber high-voltage switch air box - Google Patents
Double-air-chamber high-voltage switch air box Download PDFInfo
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- CN215645825U CN215645825U CN202120773725.XU CN202120773725U CN215645825U CN 215645825 U CN215645825 U CN 215645825U CN 202120773725 U CN202120773725 U CN 202120773725U CN 215645825 U CN215645825 U CN 215645825U
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Abstract
The utility model discloses a double-air-chamber high-voltage switch air box which comprises a first air chamber, a second air chamber and a separating device, wherein the separating device is arranged between the first air chamber and the second air chamber for separating; the separating device is provided with an insulator, wherein a bus is arranged at the end part of the insulator, and the other end of the bus is arranged in the bus socket; the flange is installed at the outer end portion of the first air chamber, wherein a sprocket is installed at one end portion of the rotating shaft. According to the utility model, the first air chamber and the second air chamber are disconnected and connected in a rotary splicing mode, so that the problem of poor temperature rise and heat dissipation is solved, and the electric field distribution electric field intensity is improved; the problems that the existing sealing sleeve is poor in sealing performance and the sealing ring is easy to wear to cause air leakage are solved; the sealing performance is improved, and the phenomenon of air leakage is avoided; the disconnection and connection of the isolating switch are realized by adopting a chain mode among the three phases, so that the problem of inconsistent three phases is solved; the problem that the solid-sealed polar pole is not beneficial to heat dissipation is solved.
Description
Technical Field
The utility model relates to a high-voltage switch air box, in particular to a double-air-chamber high-voltage switch air box.
Background
The high-voltage switch air box in the current market adopts an air chamber, and if a breaker switch has a short-circuit fault or the air box leaks air, the whole power distribution system cannot operate. In addition, many isolating switches in the market are switched on or off by adopting a disconnecting link rotating motion mode, and the requirement of current temperature rise of products cannot be met. Meanwhile, the rotary knife switch mode is not very uniform and reliable in electric field. The circuit breakers are not beneficial to heat dissipation due to the use of the embedded pole, the phenomenon of heating is easy to occur due to the design of a taper connection mode at the movable end of the vacuum arc extinguish chamber, and the phenomenon of out-of-step three-phase isolation cutters is caused due to the adoption of a crank arm connection mode by the three-phase isolation cutters; the high-voltage switch air box in the existing market adopts an air chamber, and if a breaker switch has a short-circuit fault or leaks air, the whole power distribution system can not operate. If the air box is used when the lower air chamber leaks air and the upper air chamber does not leak air, the whole power distribution system can safely operate, a plurality of isolating switches on the market are switched off or on by adopting a disconnecting link rotating motion mode, the switching-on area is not very large, the contact place is easy to heat, and the electric field is not very uniform and reliable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a double-air-chamber high-voltage switch air box.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model relates to a double-air-chamber high-voltage switch air box, which comprises a first air chamber, a second air chamber and a separating device, wherein,
a separating device is arranged between the first air chamber and the second air chamber for separating;
an insulator is arranged on the separation device, wherein,
a bus bar is installed at the end of the insulator,
the other end of the bus is arranged in the bus socket;
an upper connecting sleeve and a lower connecting sleeve are also arranged in the separating device, wherein,
two ends of the upper connecting sleeve and the lower connecting sleeve are respectively positioned in the first air chamber and the second air chamber;
the top end of the upper and lower connecting sleeves is provided with a conductor guide sleeve, wherein,
a conductive sliding rod is sleeved in the conductor guide sleeve;
a transmission screw rod is screwed in the conductive slide rod, wherein,
the other end of the transmission screw rod is fixed with the grounding contact;
one end of the grounding contact is connected with a rotating shaft, wherein,
the rotating shaft is sleeved in the flange;
the flange is installed at an outer end portion of the first air chamber, wherein,
a chain wheel is arranged at one end part of the rotating shaft;
the rotating shaft is also sleeved with a thrust bearing and a deep groove bearing, wherein,
and a lip forming sealing ring is arranged between the rotating shaft and the deep groove bearing.
As a preferable aspect of the present invention, a continuous pulling string is connected to an end of the upper and lower connection sleeves located in the second air chamber, wherein,
the end part of the continuous pulling row is connected with a supporting rod;
an insulating pull rod is arranged in the support rod, wherein,
and a corrugated pipe assembly is arranged at the end part of the insulating pull rod.
As a preferred technical scheme of the utility model, one end of the insulating pull rod is connected with the movable contact through a double-headed screw rod, wherein,
the end part of the moving contact is connected with a vacuum arc-extinguishing chamber;
one end part of the double-head screw rod extends into the vacuum arc extinguishing chamber;
the moving contact is arranged in the moving end conducting block, wherein,
the movable end conducting block is arranged between the vacuum arc extinguish chamber and the insulating pull rod.
As a preferable technical solution of the present invention, a fixed terminal is installed at one end of the vacuum interrupter, wherein,
an outlet end is arranged in the fixed terminal;
the end of the outlet end is connected with a feeder line, wherein,
the feeder line row is arranged at the end part of the outlet socket;
the outlet socket is arranged at the bottom of the second air chamber.
As a preferable technical solution of the present invention, the sprocket is provided with a chain.
As a preferable technical solution of the present invention, a main contact is mounted at one end of the bus bar.
As a preferable aspect of the present invention, an end of the bellows assembly abuts against an inner wall of the end of the second air chamber.
As a preferred technical scheme of the utility model, a conductive watchband is arranged in the moving contact, wherein,
and a first conductive spring is arranged on the side of the moving contact.
As a preferred technical solution of the present invention, a second conductive spring is disposed in the ground contact.
As a preferred embodiment of the present invention, the bus bar mounted on the bus bar receptacle includes a phase a, a phase B, and a phase C.
The utility model has the following beneficial effects: according to the utility model, the first air chamber and the second air chamber are disconnected and connected in a rotary splicing mode, so that the problem of poor temperature rise and heat dissipation is solved, and the electric field distribution electric field intensity is improved; the isolation switch adopts a flange component in a sealing mode, so that the problems that the existing sealing sleeve is poor in sealing performance and a sealing ring is easy to wear to cause air leakage are solved; the thrust bearing and the deep groove bearing can reduce friction force, ensure that the transmission reliability and flexibility of the screw rod are improved, ensure that the rotating shaft is accepted and balanced, ensure that the sealing ring is not easily extruded, improve the sealing property and avoid the air leakage phenomenon; the disconnection and connection of the isolating switch are realized by adopting a chain mode among the three phases, so that the problem of inconsistent three phases is solved; the second air chamber adopts a fixing mode of a support piece structure, so that the problem that the solid-sealed polar pole is not beneficial to heat dissipation is solved; the moving contact adopts a taper connection mode to avoid the phenomenon of easy heating; the conductive watchband is tightly matched with the movable contact, the first conductive spring is arranged on the movable contact, the outer surface of the movable contact is in contact with the conductive spring, the heating problem is well solved, and the problem of low opening speed caused by large surface friction resistance is also reduced; the safety performance and the sealing performance of the high-voltage switch are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is one of the schematic structural diagrams of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
FIG. 3 is a third schematic view of the present invention;
FIG. 4 is a fourth schematic structural view of the present invention;
FIG. 5 is a fifth schematic view of the present invention;
FIG. 6 is a partial schematic view of the present invention;
FIG. 7 is a second partial schematic view of the present invention;
in the figure: 001. a first air chamber; 002. a second air chamber; 003. a partitioning means; 1. a bus bar receptacle; 2. a main contact; 3. a conductor guide sleeve; 4. a ground contact; 5. a bus bar; 6. a conductive slide bar; 7. a transmission screw rod; 8. a flange; 9. a thrust bearing; 10. An insulator; 11. the upper and lower connecting sleeves; 12. a support bar; 13. a movable end conductive block; 14. a vacuum arc-extinguishing chamber; 15. an insulating pull rod; 16. a bellows assembly; 17. a moving contact; 18. a conductive watchband; 19. a first conductive spring; 20. a feeder line; 21. An outlet socket; 22. a second conductive spring; 23. continuously pulling the rows; 24. a sprocket; 25. a lip-forming seal ring; 26. a deep groove bearing; 27. a rotating shaft; 28. a double-ended screw; 29. a fixed terminal; 30. a wire outlet end; 31. and a chain.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1 to 7, the present invention provides a dual-chamber high-voltage switch air box, which comprises a first air chamber 001, a second air chamber 002 and a separating device 003, wherein the separating device 003 is arranged between the first air chamber 001 and the second air chamber 002 for separation; the insulator 10 is arranged on the separating device 003, wherein the end part of the insulator 10 is provided with a bus 5, the other end of the bus 5 is arranged in a bus socket 1, the left side plate and the right side plate of the first air chamber 001 are provided with the bus sockets 1, and the bus 5 is arranged between the bus sockets 1 and is divided into a phase A bus, a phase B bus and a phase C bus;
an upper connecting sleeve 11 and a lower connecting sleeve 11 are further arranged in the separating device 003, wherein two ends of the upper connecting sleeve 11 and the lower connecting sleeve 11 are respectively positioned in a first air chamber 001 and a second air chamber 002, an isolating mechanism is arranged in the first air chamber 001, a circuit breaker mechanism is arranged in the second air chamber 002, and a mechanical interlock is arranged between the isolating mechanism and the circuit breaker mechanism;
the top end of the upper and lower connecting sleeves 11 is provided with a conductor guide sleeve 3, wherein a conductive sliding rod 6 is sleeved in the conductor guide sleeve 3; a transmission screw rod 7 is screwed in the conductive sliding rod 6, wherein the other end of the transmission screw rod 7 is fixed with the grounding contact 4;
one end of the grounding contact 4 is connected with a rotating shaft 27, wherein the rotating shaft 27 is sleeved in the flange 8; the flange 8 is installed at the outer end of the first air chamber 001, wherein a sprocket 24 is installed at one end of the rotating shaft 27; the rotating shaft 27 is further sleeved with a thrust bearing 9 and a deep groove bearing 26, wherein a lip-shaped sealing ring 25 is arranged between the rotating shaft 27 and the deep groove bearing 26, the thrust bearing 9 and the deep groove bearing 26 can reduce friction force, the transmission reliability and flexibility of a lead screw (transmission lead screw 7) are improved, the rotating shaft is accepted and balanced, the sealing ring is not easily extruded, the sealing performance is improved, and the air leakage phenomenon is avoided; the disconnection and connection of the isolating switch are realized by adopting a chain 31 mode among the three phases, and the problem of inconsistent three phases is solved.
The end part of the upper and lower connecting sleeves 11 positioned in the second air chamber 002 is connected with a continuous pulling row 23, wherein the end part of the continuous pulling row 23 is connected with a supporting rod 12; an insulating pull rod 15 is arranged in the support rod 12, wherein a bellows assembly 16 is arranged at the end of the insulating pull rod 15.
One end of the insulating pull rod 15 is connected with the moving contact 17 through a double-headed screw 28, wherein the end part of the moving contact 17 is connected with a vacuum arc-extinguishing chamber 14; one end of the double-threaded screw 28 extends into the vacuum arc-extinguishing chamber 14;
the moving contact 17 is installed in the moving end conductive block 13, wherein the moving end conductive block 13 is arranged between the vacuum arc-extinguishing chamber 14 and the insulating pull rod 15. One end of the vacuum arc extinguish chamber 14 is provided with a fixed terminal 29, wherein a wire outlet end 30 is arranged in the fixed terminal 29; the end of the outlet terminal 30 is connected with a feeder line bank 20, wherein the feeder line bank 20 is installed at the end of the outlet socket 21; the outlet socket 21 is mounted to the bottom of the second air chamber 002. The chain 31 is installed on the chain wheel 24, and the disconnection and connection of the disconnecting switch are realized by adopting a chain 31 mode among three phases, so that the problem of inconsistent three phases is solved.
The main contact 2 is mounted at one end of the bus bar 5. The end of the bellows assembly 16 abuts against the inner wall of the end of the second air chamber 002.
The movable contact 17 is internally provided with a conductive watchband 18, wherein the side of the movable contact 17 is provided with a first conductive spring 19. A second conductive spring 22 is provided within the ground contact 4. The bus bar 5 mounted on the bus bar receptacle 1 includes a phase a, a phase B, and a phase C.
Specifically, when the isolating switch is in an opening state, after the energy storage of the circuit breaker mechanism is completed, the circuit breaker can be closed when a closing button of the circuit breaker mechanism is pressed; when the isolating switch is in an opening state, the isolating mechanism is driven by manpower or a motor to operate the movable cutter spindle to rotate clockwise, the isolating switch is in a closing state, the breaker mechanism is in an energy storage state, and when a closing button of the breaker mechanism is pressed, the breaker is closed; when the isolating switch is in an opening state, the isolating mechanism is driven by manpower or a motor to operate the grounding shaft to rotate anticlockwise, the isolating switch is in a grounding closing state, the breaker mechanism is in an energy storage state, when a closing button of the breaker mechanism is pressed, the breaker is closed, a lower door can be opened, the breaker mechanism cannot press the opening button, and after the lower door is closed, the breaker mechanism can be opened.
According to the utility model, the first air chamber 001 and the second air chamber 002 are disconnected and connected in a rotary splicing mode, so that the problem of poor heat dissipation of temperature rise is solved, and the electric field distribution strength is improved; the isolation switch adopts a flange component in a sealing mode, so that the problems that the existing sealing sleeve is poor in sealing performance and a sealing ring is easy to wear to cause air leakage are solved; the thrust bearing 9 and the deep groove bearing 26 can reduce friction force, ensure that the transmission reliability and flexibility of the screw rod (transmission screw rod 7) are improved, ensure that a rotating shaft is accepted and balanced, ensure that a sealing ring is not easily extruded, improve the sealing property and avoid the air leakage phenomenon; the disconnection and connection of the isolating switch are realized by adopting a chain 31 mode among the three phases, so that the problem of inconsistent three phases is solved; the second air chamber 002 adopts a fixing mode of a support piece structure, so that the problem that the solid-sealed polar pole is not beneficial to heat dissipation is solved; the moving contact 17 adopts a taper connection mode to avoid the phenomenon of easy heating; the conductive watchband 18 is tightly matched with the moving contact 17, the first conductive spring 19 is arranged on the moving contact 17, the outer surface of the moving contact 17 is in contact with the first conductive spring 19, the problem of heating is well solved, and the problem of small opening speed caused by large surface friction resistance is also reduced; the safety performance and the sealing performance of the high-voltage switch are improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A double-air-chamber high-voltage switch air box is characterized by comprising a first air chamber (001), a second air chamber (002) and a separating device (003),
a separation device (003) is arranged between the first air chamber (001) and the second air chamber (002) for separation;
an insulator (10) is arranged on the separating device (003), wherein,
a bus (5) is arranged at the end part of the insulator (10),
the other end of the bus (5) is arranged in the bus socket (1);
an upper connecting sleeve and a lower connecting sleeve (11) are also arranged in the separating device (003),
two ends of the upper connecting sleeve (11) and the lower connecting sleeve (11) are respectively positioned in the first air chamber (001) and the second air chamber (002);
the top end of the upper and lower connecting sleeves (11) is provided with a conductor guide sleeve (3), wherein,
a conductive sliding rod (6) is sleeved in the conductor guide sleeve (3);
a transmission screw rod (7) is screwed in the conductive slide rod (6), wherein,
the other end of the transmission screw rod (7) is fixed with the grounding contact (4);
one end of the grounding contact (4) is connected with a rotating shaft (27), wherein,
the rotating shaft (27) is sleeved in the flange (8);
the flange (8) is mounted to the outer end of the first air chamber (001), wherein,
a chain wheel (24) is arranged at one end part of the rotating shaft (27);
the rotating shaft (27) is also sleeved with a thrust bearing (9) and a deep groove bearing (26), wherein,
a lip forming sealing ring (25) is arranged between the rotating shaft (27) and the deep groove bearing (26).
2. A double chamber high voltage switch gas tank as claimed in claim 1, characterized in that the end of the upper and lower connection sleeves (11) located in the second gas chamber (002) is connected with a tie bar (23), wherein,
the end part of the continuous drawing row (23) is connected with a supporting rod (12);
an insulating pull rod (15) is arranged in the support rod (12), wherein,
a corrugated pipe assembly (16) is arranged at the end part of the insulating pull rod (15).
3. A double-chamber high-voltage switch gas tank as claimed in claim 2, characterized in that one end of the insulating tie rod (15) is connected with the movable contact (17) by means of a double-headed screw (28), wherein,
the end part of the moving contact (17) is connected with a vacuum arc-extinguishing chamber (14);
one end part of the double-end screw (28) extends into the vacuum arc-extinguishing chamber (14);
the moving contact (17) is arranged in the moving end conducting block (13), wherein,
the movable end conducting block (13) is arranged between the vacuum arc extinguish chamber (14) and the insulating pull rod (15).
4. A double-chamber high-voltage switch gas box according to claim 3, characterized in that one end of said vacuum interrupter (14) is fitted with a fixed terminal (29), wherein,
a wire outlet end (30) is arranged in the fixed terminal (29);
the end of the outlet end (30) is connected with a feeder row (20), wherein,
the feeder line (20) is arranged at the end part of the outlet socket (21);
the outlet socket (21) is mounted at the bottom of the second air chamber (002).
5. A double-chamber high-pressure switch gas tank according to claim 1, characterized in that a chain (31) is mounted on the chain wheel (24).
6. A double-chamber high-voltage switch gas box according to claim 1, characterized in that one end of said bus bar (5) is fitted with a main contact (2).
7. A double-chamber high-pressure switch gas box according to claim 2, characterized in that the end of the bellows assembly (16) abuts against the inner wall of the end of the second gas chamber (002).
8. A double-air-chamber high-voltage switch air box according to claim 3, characterized in that the moving contact (17) is internally provided with a conductive watchband (18), wherein,
and a first conductive spring (19) is arranged on the side of the moving contact (17).
9. A double-chamber high-voltage switch gas tank according to claim 1, characterized in that a second conductive spring (22) is arranged in the grounding contact (4).
10. A double-plenum high-voltage switch gas box according to claim 1, characterized in that the bus bar (5) mounted on the bus bar socket (1) comprises a phase a, a phase B and a phase C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120773725.XU CN215645825U (en) | 2021-04-15 | 2021-04-15 | Double-air-chamber high-voltage switch air box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120773725.XU CN215645825U (en) | 2021-04-15 | 2021-04-15 | Double-air-chamber high-voltage switch air box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215645825U true CN215645825U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120773725.XU Active CN215645825U (en) | 2021-04-15 | 2021-04-15 | Double-air-chamber high-voltage switch air box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215645825U (en) |
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2021
- 2021-04-15 CN CN202120773725.XU patent/CN215645825U/en active Active
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