CN219936934U - High-voltage switch complete device - Google Patents
High-voltage switch complete device Download PDFInfo
- Publication number
- CN219936934U CN219936934U CN202321346526.6U CN202321346526U CN219936934U CN 219936934 U CN219936934 U CN 219936934U CN 202321346526 U CN202321346526 U CN 202321346526U CN 219936934 U CN219936934 U CN 219936934U
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- Prior art keywords
- insulating
- conducting rod
- shell
- inner shell
- sealing ring
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- 238000007789 sealing Methods 0.000 claims abstract description 31
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides a high-voltage switch integrated equipment, including vacuum circuit breaker and isolator, vacuum circuit breaker includes vacuum interrupter, vacuum interrupter includes insulating housing, moves conducting rod and quiet conducting rod, insulating housing's inside is equipped with insulating inner shell, be equipped with the gap layer between insulating housing and the insulating inner shell, insulating housing's upper and lower both ends respectively are equipped with a first one-way discharge valve, insulating inner housing's upper and lower both ends respectively are equipped with a second one-way discharge valve, two first one-way discharge valves and two second one-way discharge valves all are located the both sides of sealing ring respectively. In the switching-on and switching-off process of the circuit breaker, the insulating inner shell and the sealing ring move along with the movable conducting rod, and in the sealing ring moving process, the first one-way exhaust valve on the insulating outer shell and the second one-way exhaust valve on the insulating inner shell exhaust outwards, so that the vacuum degree of the vacuum arc-extinguishing chamber is enhanced, the arc-extinguishing effect is improved, and the circuit breaker has a longer service life.
Description
Technical Field
The utility model relates to the technical field of electrical engineering automation, in particular to a high-voltage switch complete device.
Background
The high-voltage circuit breaker comprises a vacuum circuit breaker and an isolating disconnecting link, which are often used in series, wherein the vacuum circuit breaker is used for switching-on and switching-off operation under the condition of load, and the isolating disconnecting link is used for switching-on and switching-off without load and grounding protection. The vacuum circuit breaker is also called a vacuum switch, and has the advantages of small volume, light weight, suitability for frequent operation and the like because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are all high vacuum, is an indoor power distribution device in a 3-10 kV 50Hz three-phase alternating current system, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and substations, and is popular in power distribution networks. The problems of the prior art are that: after the movable conductive rod moves towards the fixed contact to switch on and off for a plurality of times, the problem that the vacuum degree of the impacted sealing shell is easy to drop is solved.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a high-voltage switch complete device which can keep high vacuum degree, ensure arc extinguishing capability and have long service life.
The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a high-voltage switch integrated equipment, includes vacuum circuit breaker and isolator, vacuum circuit breaker includes vacuum interrupter, vacuum interrupter includes insulating housing, moves conducting rod and quiet conducting rod, move conducting rod and insulating housing sliding connection, quiet conducting rod and insulating housing fixed connection, isolator and quiet conducting rod establish ties, and the inner of moving conducting rod and quiet conducting rod respectively is equipped with a contact, and the outside of two contacts is fixed and is provided with the shield cover, insulating housing's inside is equipped with insulating housing, is equipped with the gap layer between insulating housing and the insulating housing, insulating housing and moving conducting rod fixed connection, insulating housing and quiet conducting rod sliding connection, contact and shield cover are located insulating housing, fixed mounting has the sealing ring on the insulating housing, be sealed sliding connection between sealing ring and the insulating housing, the upper and lower both ends of insulating housing respectively are equipped with a first one-way discharge valve, and two first one-way discharge valves and two second one-way discharge valves all are located the both sides of sealing ring respectively.
Further perfection, upper and lower both ends of insulating shell still are equipped with a pressure sensor's automatically controlled pneumatic valve respectively, and automatically controlled pneumatic valve connects high-pressure gas pitcher, and high-pressure gas pitcher is equipped with insulating protection gas, pressure sensor and automatically controlled pneumatic valve electric connection control system.
Further perfecting, the high-pressure gas tank and the insulating shell are connected and provided with a cooler.
Further perfecting, the sealing ring is provided with a heat conducting ring, and the heat conducting ring is contacted with the inner wall of the insulating shell.
Further perfecting, the heat conducting ring is provided with a through hole, the through hole is connected with a heat dissipation conduit in a sliding sealing manner, and the heat dissipation conduit is fixedly connected with the insulating shell.
The beneficial effects of the utility model are as follows: the utility model has the advantages of good insulating property and difficult electric leakage, the insulating inner shell and the sealing ring move along with the movable conducting rod in the process of opening and closing the circuit breaker, and the first one-way exhaust valve and the second one-way exhaust valve on the insulating outer shell and the second one-way exhaust valve on the insulating inner shell exhaust outwards in the moving process of the sealing ring, thereby enhancing the vacuum degree of the vacuum arc-extinguishing chamber, improving the arc-extinguishing effect and prolonging the service life of the circuit breaker.
Drawings
FIG. 1 is a schematic diagram of the present utility model in closing a switch;
FIG. 2 is a schematic diagram of the structure of the present utility model during opening;
reference numerals illustrate: 1. the device comprises an insulating outer shell, 2, a movable conducting rod, 3, a static conducting rod, 4, a contact, 5, a shielding cover, 6, an insulating inner shell, 7, a sealing ring, 8, a first one-way exhaust valve, 9, a second one-way exhaust valve, 10, a pressure sensor, 11, an electric control air valve, 12, a cooler, 13, a heat conducting ring, 14, a heat dissipation conduit, 15 and an isolating switch.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
referring to fig. 1-2: the utility model provides a high-voltage switch integrated equipment in this embodiment, including vacuum circuit breaker and isolator 15, vacuum circuit breaker includes vacuum interrupter, and vacuum interrupter includes insulating housing 1, moves conducting rod 2 and quiet conducting rod 3, move conducting rod 2 and insulating housing 1 sliding connection, quiet conducting rod 3 and insulating housing 1 fixed connection, isolator 15 and quiet conducting rod 3 establish ties, move conducting rod 2 and quiet conducting rod 3's inner respectively is equipped with a contact 4, and the outside of two contacts 4 is fixed and is provided with shield cover 5, insulating housing 1's inside is equipped with insulating housing 6, is equipped with the gap layer between insulating housing 1 and the insulating housing 6, insulating housing 6 and move conducting rod 2 fixed connection, insulating housing 6 and quiet conducting rod 3 sliding connection, contact 4 and shield cover 5 are located insulating housing 6, fixed mounting has sealing ring 7 on the insulating housing 6, be sealed sliding connection between sealing ring 7 and the insulating housing 1, the upper and lower both ends of insulating housing 1 respectively are equipped with a one-way exhaust valve 8, the upper and lower both ends of insulating housing 6 respectively are equipped with a second 9 and two one-way exhaust valves of two sides of equally dividing respectively.
Working principle: the two contacts 4 on the movable conducting rod 2 and the static conducting rod 3 are matched to complete switching-on and electrifying, the movable conducting rod 2 moves downwards during switching-off, switching-off and outage are realized after the two contacts 4 are separated, the movable conducting rod 2 drives the insulating inner shell 6 and the sealing ring 7 to move downwards simultaneously, when the sealing ring 7 slides downwards in a sealing manner on the insulating outer shell 1, negative pressure and positive pressure are generated in the chambers on the upper side and the lower side of the sealing ring 7, the inside of the insulating inner shell 6 can be vacuumized through the second one-way exhaust valve 9 by utilizing the negative pressure, the vacuum degree in an arc extinguishing chamber during switching-off is improved, the arc extinguishing effect is improved, and the movement of the shielding cover 5 can also improve the arc extinguishing efficiency. The positive pressure can be utilized to extrude the gas in the insulating shell 1 to the outside through the first one-way exhaust valve 8, so that the overall vacuum insulating performance is improved, the gas discharge also has a certain heat dissipation effect, and the movable conducting rod 2 moves upwards to switch on, so that the air suction and exhaust processes can be completed once. The action of moving the conductive rod up and down through the breaker opening and closing driving mechanism belongs to the prior art, and is not described in detail herein.
In embodiment 2, in order to better control the opening and closing process and improve the safety performance of the device on the basis of embodiment 1, the upper end and the lower end of the insulating housing 1 are respectively provided with an electric control air valve 11 with a pressure sensor 10, the electric control air valve 11 is connected with a high-pressure air tank, the high-pressure air tank is provided with insulating protective air, and the pressure sensor 10 and the electric control air valve 11 are electrically connected with a control system.
The two pressure sensors 10 can respectively detect the air pressure in the chambers on the upper side and the lower side of the sealing ring 7, and data are acquired to a control system. The control system can switch the two electric control air valves 11 according to the air pressure value. For example, during the closing process, the upper electric control air valve 11 can be controlled to be closed, and the lower electric control air valve 11 is opened to be inflated, so that the air pressure at the lower side of the sealing ring 7 is increased, and closing is assisted. After the brake is separated, the upper electric control air valve 11 is opened for inflation, and the lower electric control air valve 11 is closed for air supplement, so that the air pressures at the two sides of the sealing ring 7 are balanced. Or the air pressure on the upper side of the sealing ring 7 can be directly increased in the brake separating process, so that brake separating is facilitated. Through the above-mentioned structural design, will fill insulating protection gas in the cavity of sealing ring 7 both sides, can improve insulating properties, external miscellaneous gas is difficult to get into insulating shell 1, even if insulating inner shell 6 sealing performance decline, insulating protection gas also can get into in the insulating inner shell 6 and realize the protection.
Example 3 on the basis of example 1 or 2, the high-pressure gas tank and the insulating housing 1 are connected and mounted with a cooler 12. The cooler 12 can cool the high-pressure gas tank and the insulating shell 1, and heat dissipation efficiency in the opening and closing process is improved.
The sealing ring 7 is provided with a heat conducting ring 13, and the heat conducting ring 13 is contacted with the inner wall of the insulating shell 1. The heat conducting ring 13 can improve the heat conducting property between the insulating outer shell 1 and the insulating inner shell 6.
The heat conducting ring 13 is provided with a through hole, the through hole is connected with a heat radiating conduit 14 in a sliding and sealing mode, and the heat radiating conduit 14 is fixedly connected with the insulating shell 1. The heat dissipation duct 14 can improve the heat dissipation performance of the insulating housing 1 and the heat conductive ring 13.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (5)
1. The utility model provides a high-voltage switch complete set, includes vacuum circuit breaker and isolator (15), vacuum circuit breaker includes vacuum interrupter, vacuum interrupter includes insulating housing (1), moves conducting rod (2) and quiet conducting rod (3), move conducting rod (2) and insulating housing (1) sliding connection, quiet conducting rod (3) and insulating housing (1) fixed connection, isolator (15) are established ties with quiet conducting rod (3), respectively are equipped with a contact (4) in the inner of moving conducting rod (2) and quiet conducting rod (3), the outside of two contacts (4) is fixed and is provided with shield cover (5), its characterized in that: the inside of insulating shell (1) is equipped with insulating inner shell (6), is equipped with the gap layer between insulating shell (1) and insulating inner shell (6), insulating inner shell (6) and movable conducting rod (2) fixed connection, insulating inner shell (6) and quiet conducting rod (3) sliding connection, contact (4) and shield cover (5) are located insulating inner shell (6), fixed mounting has sealing ring (7) on insulating inner shell (6), is sealed sliding connection between sealing ring (7) and insulating shell (1), the upper and lower both ends of insulating shell (1) respectively are equipped with one first one-way discharge valve (8), the upper and lower both ends of insulating inner shell (6) respectively are equipped with one second one-way discharge valve (9), and two first one-way discharge valves (8) and two second one-way discharge valves (9) are equally divide and are located the both sides of sealing ring (7).
2. A high voltage switchgear assembly as claimed in claim 1, wherein: the upper end and the lower end of the insulating shell (1) are respectively provided with an electric control air valve (11) with a pressure sensor (10), the electric control air valve (11) is connected with a high-pressure air tank, the high-pressure air tank is provided with insulating protective air, and the pressure sensor (10) and the electric control air valve (11) are electrically connected with a control system.
3. A high voltage switchgear assembly as claimed in claim 2, wherein: the high-pressure gas tank and the insulating shell (1) are connected and provided with a cooler (12).
4. A high voltage switchgear assembly as claimed in claim 1, wherein: the sealing ring (7) is provided with a heat conducting ring (13), and the heat conducting ring (13) is contacted with the inner wall of the insulating shell (1).
5. The high voltage switching kit of claim 4, wherein: the heat conducting ring (13) is provided with a through hole, the through hole is connected with a heat radiating conduit (14) in a sliding and sealing mode, and the heat radiating conduit (14) is fixedly connected with the insulating shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321346526.6U CN219936934U (en) | 2023-05-29 | 2023-05-29 | High-voltage switch complete device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321346526.6U CN219936934U (en) | 2023-05-29 | 2023-05-29 | High-voltage switch complete device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219936934U true CN219936934U (en) | 2023-10-31 |
Family
ID=88489629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321346526.6U Active CN219936934U (en) | 2023-05-29 | 2023-05-29 | High-voltage switch complete device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219936934U (en) |
-
2023
- 2023-05-29 CN CN202321346526.6U patent/CN219936934U/en active Active
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