CN114362027A - Aerify cabinet and gas tank thereof - Google Patents
Aerify cabinet and gas tank thereof Download PDFInfo
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- CN114362027A CN114362027A CN202111547678.8A CN202111547678A CN114362027A CN 114362027 A CN114362027 A CN 114362027A CN 202111547678 A CN202111547678 A CN 202111547678A CN 114362027 A CN114362027 A CN 114362027A
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- 230000003068 static effect Effects 0.000 claims abstract description 107
- 238000002955 isolation Methods 0.000 claims abstract description 101
- 238000005266 casting Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 18
- 230000006872 improvement Effects 0.000 description 16
- 239000012212 insulator Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to an inflatable cabinet and an air box thereof, wherein the air box of the inflatable cabinet comprises a box body, wherein a solid-sealed polar pole is arranged in the box body, the solid-sealed polar pole is vertically arranged, and the solid-sealed polar pole is provided with an upper wire outlet seat and a lower wire outlet seat; a lower isolation moving contact is assembled in the lower wire outlet seat in a vertically conductive sliding manner, a lower isolation static contact and a grounding static contact are arranged below the lower wire outlet seat in the box body, a lower isolation fracture is formed between the lower isolation moving contact and the lower isolation static contact, and the grounding static contact is in conductive connection with the lower isolation static contact; the bottom of the box body is provided with a wire inlet and outlet sleeve, the wire inlet and outlet sleeve is connected with a bus, and one of the grounding static contact and the lower isolation static contact is electrically and fixedly connected with the bus; a contact holder is further arranged in the box body, a grounding moving contact is movably assembled on the contact holder in a reciprocating mode, and a grounding fracture is formed between the grounding moving contact and the grounding fixed contact. Like this, even the transmission precision is lower, also can guarantee to keep apart fracture and ground connection fracture simultaneous insulation, and then guarantee to aerify the insulating requirement of cabinet.
Description
Technical Field
The invention relates to an inflatable cabinet and an air box thereof, and belongs to the field of power distribution switchgear.
Background
At present, the main conductive loops such as a solid-sealed polar pole, a three-position switch and the like are sealed in an air chamber filled with insulating gas in an air inflation cabinet at home and abroad. If the chinese utility model patent with the publication number CN205452934U discloses an inflatable switch cabinet, including an air box, in which an embedded pole and a direct-acting three-position switch are arranged, the embedded pole has a moving outlet seat and a static outlet seat, and the three-position switch includes an isolating moving contact, an isolating static contact and a grounding static contact; the static outgoing line seat is positioned at the upper part of the solid-sealed polar pole and is in conductive connection with the isolation moving contact; the movable outlet seat is positioned in the middle of the solid-sealed polar pole and is electrically connected with the outlet sleeve through a busbar; the isolation static contact is positioned above the static outlet base and is in conductive connection with the main bus; the grounding fixed contact is positioned below the static outlet base and is electrically connected with the grounding bar.
If the inflatable switch cabinet is to realize simultaneous insulation of the isolation fracture and the grounding fracture, the requirement on the transmission precision of the three-position switch is high, and if the opening position of the three-position switch is deviated, the insulation of the switch cabinet can be influenced.
Disclosure of Invention
The invention aims to provide an air box of an inflatable cabinet, which aims to solve the technical problem that the insulation of the switch cabinet is influenced if the opening position of a three-position switch deviates in the prior art. The invention also aims to provide the inflatable cabinet.
In order to realize the purpose, the technical scheme of the air box of the inflatable cabinet is as follows:
the gas tank of the gas-filled cabinet comprises a tank body, wherein a solid-sealed polar pole is arranged in the tank body, the solid-sealed polar pole is vertically arranged, and the solid-sealed polar pole is provided with an upper wire outlet seat and a lower wire outlet seat; a lower isolation moving contact is assembled in the lower wire outlet seat in a vertically conductive sliding manner, a lower isolation static contact and a grounding static contact are arranged below the lower wire outlet seat in the box body, a lower isolation fracture is formed between the lower isolation moving contact and the lower isolation static contact, and the grounding static contact is in conductive connection with the lower isolation static contact; the bottom of the box body is provided with a wire inlet and outlet sleeve, the wire inlet and outlet sleeve is connected with a bus, and one of the grounding static contact and the lower isolation static contact is electrically and fixedly connected with the bus; a contact holder is further arranged in the box body, a grounding moving contact is movably assembled on the contact holder in a reciprocating mode, and a grounding fracture is formed between the grounding moving contact and the grounding fixed contact.
The beneficial effects are that: because the grounding static contact and the lower isolating static contact are both positioned below the lower wire outlet seat, independent isolation operation and grounding operation are realized through the lower isolating static contact and the grounding static contact respectively, and thus, even if the transmission precision is low, the isolation fracture and the grounding fracture can be ensured to be insulated simultaneously, and the insulation requirement of the gas-filled cabinet is further ensured.
As a further improvement, the lower isolation static contact and the grounding static contact are integrally formed.
The beneficial effects are that: due to the design, the lower isolation static contact and the grounding static contact are compact in structure, so that the insulation is facilitated, and the miniaturization of the gas tank is facilitated. In addition, electrical contact is also reduced, thereby reducing the amount of heat generated.
As a further improvement, the lower part of the lower isolation static contact is provided with a positioning step, the vertical face of the positioning step is provided with a threaded hole, and the bus is fixed on the positioning step through the threaded hole.
The beneficial effects are that: the positioning step can position the connecting end of the bus, and the bus is favorably fixed on the positioning step through a screw.
As a further improvement, the grounding fixed contact is provided with a grounding jack with an opening facing to the horizontal direction, and the grounding movable contact is a direct-acting movable contact reciprocating along the horizontal direction.
The beneficial effects are that: by the design, the space in the left and right directions of the air box can be fully utilized, and the height of the air box is reduced.
As a further improvement, an upper isolating moving contact is assembled in the upper wire outlet seat in a vertically conductive sliding manner, an upper isolating static contact is arranged above the upper wire outlet seat in the box body, and an upper isolating fracture is formed between the upper isolating moving contact and the upper isolating static contact.
The beneficial effects are that: through setting up two isolation fractures to increase the insulating requirement of aerifing the cabinet.
As a further improvement, a contact sleeve for connecting a cable is fixedly arranged on a top plate of the box body, and the upper isolation static contact and the contact sleeve are molded together by casting.
The beneficial effects are that: by the design, the electric contact between the cable and the upper isolation static contact is reduced, and further the heat productivity is reduced.
As a further improvement, observation windows are respectively arranged on the box body corresponding to the positions of the lower isolation fracture and the grounding fracture.
The beneficial effects are that: through setting up the observation window, be favorable to observing the divide-shut brake position of each fracture department.
As a further improvement, the grounding static contact is composed of a plurality of petal-shaped contact fingers.
The beneficial effects are that: the stable contact between the grounding moving contact and the grounding static contact is ensured, and meanwhile, the flow area is increased.
As a further improvement, a shielding cover is arranged outside the grounding static contact.
The beneficial effects are that: the shielding cover is arranged on the outer side of the grounding static contact, so that the electric field at the grounding static contact is optimized.
In order to realize the purpose, the technical scheme of the inflatable cabinet is as follows:
the inflatable cabinet comprises a cabinet body, wherein the cabinet body is provided with an air box, the air box comprises a box body, the box body is internally provided with a solid-sealed polar pole, the solid-sealed polar pole is vertically arranged, and the solid-sealed polar pole is provided with an upper wire outlet seat and a lower wire outlet seat; a lower isolation moving contact is assembled in the lower wire outlet seat in a vertically conductive sliding manner, a lower isolation static contact and a grounding static contact are arranged below the lower wire outlet seat in the box body, a lower isolation fracture is formed between the lower isolation moving contact and the lower isolation static contact, and the grounding static contact is in conductive connection with the lower isolation static contact; the bottom of the box body is provided with a wire inlet and outlet sleeve, the wire inlet and outlet sleeve is connected with a bus, and one of the grounding static contact and the lower isolation static contact is electrically and fixedly connected with the bus; a contact holder is further arranged in the box body, a grounding moving contact is movably assembled on the contact holder in a reciprocating mode, and a grounding fracture is formed between the grounding moving contact and the grounding fixed contact.
The beneficial effects are that: because the grounding static contact and the lower isolating static contact are both positioned below the lower wire outlet seat, independent isolation operation and grounding operation are realized through the lower isolating static contact and the grounding static contact respectively, and thus, even if the transmission precision is low, the isolation fracture and the grounding fracture can be ensured to be insulated simultaneously, and the insulation requirement of the gas-filled cabinet is further ensured.
As a further improvement, the lower isolation static contact and the grounding static contact are integrally formed.
The beneficial effects are that: due to the design, the lower isolation static contact and the grounding static contact are compact in structure, so that the insulation is facilitated, and the miniaturization of the gas tank is facilitated. In addition, electrical contact is also reduced, thereby reducing the amount of heat generated.
As a further improvement, the lower part of the lower isolation static contact is provided with a positioning step, the vertical face of the positioning step is provided with a threaded hole, and the bus is fixed on the positioning step through the threaded hole.
The beneficial effects are that: the positioning step can position the connecting end of the bus, and the bus is favorably fixed on the positioning step through a screw.
As a further improvement, the grounding fixed contact is provided with a grounding jack with an opening facing to the horizontal direction, and the grounding movable contact is a direct-acting movable contact reciprocating along the horizontal direction.
The beneficial effects are that: by the design, the space in the left and right directions of the air box can be fully utilized, and the height of the air box is reduced.
As a further improvement, an upper isolating moving contact is assembled in the upper wire outlet seat in a vertically conductive sliding manner, an upper isolating static contact is arranged above the upper wire outlet seat in the box body, and an upper isolating fracture is formed between the upper isolating moving contact and the upper isolating static contact.
The beneficial effects are that: through setting up two isolation fractures to increase the insulating requirement of aerifing the cabinet.
As a further improvement, a contact sleeve for connecting a cable is fixedly arranged on a top plate of the box body, and the upper isolation static contact and the contact sleeve are molded together by casting.
The beneficial effects are that: by the design, the electric contact between the cable and the upper isolation static contact is reduced, and further the heat productivity is reduced.
As a further improvement, observation windows are respectively arranged on the box body corresponding to the positions of the lower isolation fracture and the grounding fracture.
The beneficial effects are that: through setting up the observation window, be favorable to observing the divide-shut brake position of each fracture department.
As a further improvement, the grounding static contact is composed of a plurality of petal-shaped contact fingers.
The beneficial effects are that: the stable contact between the grounding moving contact and the grounding static contact is ensured, and meanwhile, the flow area is increased.
As a further improvement, a shielding cover is arranged outside the grounding static contact.
The beneficial effects are that: the shielding cover is arranged on the outer side of the grounding static contact, so that the electric field at the grounding static contact is optimized.
Drawings
FIG. 1 is a schematic structural view of an inflatable cabinet according to embodiment 1 of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is an enlarged view of the gas box of FIG. 1;
FIG. 4 is a schematic structural view of the contact assembly of FIG. 3;
in the figure: 11. a pressure relief channel; 12. a cable chamber; 13. a bus chamber; 14. an instrument room; 15. a mechanism chamber; 16. a gas tank; 17. an upper isolation static contact; 18. an upper isolating moving contact; 19. an upper wire outlet seat; 20. a contact head frame; 21. a grounding moving contact; 22. a bus bar; 23. a contact sleeve; 24. solid-sealing the pole; 25. a lower wire outlet seat; 26. a lower isolation moving contact; 27. a contact assembly; 28. a wire inlet and outlet sleeve; 29. an observation window; 30. positioning a step; 31. a first threaded hole; 32. an insulator; 33. a second threaded hole; 34. a lower isolation static contact; 35. a shield case; 36. and (5) grounding and static contacts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …," or the like, does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "front", "back", "upper", "lower", "left" and "right" are based on the orientations and positional relationships shown in the drawings and are only for convenience in describing the present invention, but do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1 of the inflatable cabinet of the invention:
as shown in fig. 1, the inflatable cabinet comprises a cabinet body, wherein the cabinet body is provided with a pressure relief channel 11, a cable chamber 12, a bus chamber 13, an instrument chamber 14, a mechanism chamber 15 and an air box 16; the pressure relief channel 11 is mainly used for internal arcing pressure relief, an in-out line cable and accessories are installed in the cable chamber 12, a main bus is installed in the bus chamber 13, a secondary control protection device is installed in the instrument chamber 14, and an operating mechanism is installed in the mechanism chamber 15.
As shown in fig. 2 and 3, the gas tank 16 includes the box, be fixed with on the roof in the box and seal utmost point post 24 admittedly, seal utmost point post 24 admittedly along fore-and-aft direction (the direction of depth of the cabinet body promptly) interval arrangement three, three seals the equal vertical arrangement of utmost point post 24 admittedly, seal utmost point post 24 admittedly and have last outlet wire seat 19 and lower outlet wire seat 25, go up outlet wire seat 19 and be located the middle part that seals utmost point post 24 admittedly, lower outlet wire seat 25 is located the lower part that seals utmost point post 24 admittedly, go up outlet wire seat 19 and lower outlet wire seat 25 and be in the left and right sides that seals utmost point post 24 admittedly respectively, in order to make full use of the ascending space in the gas tank left and right sides direction, reduce the height of gas tank.
In this embodiment, an upper isolation moving contact 18 is mounted in the upper outlet base 19 in a vertically conductive sliding manner, an upper isolation static contact 17 is disposed above the upper outlet base 19 in the box body, and an upper isolation fracture is formed between the upper isolation static contact 17 and the upper isolation moving contact 18. Wherein, the box body is provided with an observation window 29 corresponding to the position of the upper isolation fracture so as to observe the opening and closing position of the upper isolation moving contact 18. In other embodiments, the upper wire outlet seat is not provided with an upper isolation moving contact, and the upper wire outlet seat is directly connected to the upper isolation static contact through a busbar.
In this embodiment, a contact sleeve 23 is fixedly disposed on a top plate of the box body, the upper isolation stationary contact 17 and the contact sleeve 23 are molded together by casting, and the top of the contact sleeve 23 is directly and fixedly connected with a cable in an electrically conductive manner. By the design, the electric contact between the cable and the upper isolation static contact is reduced, and further the heat productivity is reduced.
As shown in fig. 3, a lower isolation movable contact 26 is mounted in the lower outlet base 25 in a vertically conductive sliding manner, and a contact assembly 27 is disposed below the lower outlet base 25 in the box body. As shown in fig. 4, the contact assembly 27 includes an insulator 32, a lower isolation stationary contact 34 and a ground stationary contact 36, where the lower isolation stationary contact 34 and the ground stationary contact 36 are integrally formed, that is, the lower isolation stationary contact 34 and the ground stationary contact 36 are electrically connected together. Wherein, the lower isolation static contact 34 and the grounding static contact 36 are molded in the insulator 32.
In this embodiment, the insulator 32 is provided with a second screw hole 33, and the insulator 32 is fixed to a side plate of the case through the second screw hole 33.
In this embodiment, the lower isolation stationary contact 34 has an upward isolation socket, an annular conductive contact finger is disposed in the isolation socket, and a lower isolation fracture is formed between the lower isolation stationary contact 34 and the lower isolation movable contact 26. Wherein, the box body is provided with an observation window 29 corresponding to the position of the lower isolation fracture so as to observe the opening and closing position of the lower isolation moving contact 26.
In this embodiment, the lower portion of the lower isolation static contact 34 extends out of the insulator 32, the lower portion of the lower isolation static contact 34 is provided with a positioning step 30, the positioning step 30 is used for positioning the connection end of the bus 22, and a vertical surface of the positioning step 30 is provided with a first threaded hole 31. The bottom of the box body is provided with a wire inlet and outlet sleeve 28, a bus 22 is connected to the wire inlet and outlet sleeve 28, and the bus 22 is fixed on the positioning step 30 through a first threaded hole 31.
In this embodiment, the grounding fixed contact 36 has a grounding socket with an opening facing the horizontal direction; a contact frame 20 is further arranged in the box body, a grounding moving contact 21 is arranged on the contact frame 20, and the grounding moving contact 21 is a direct-acting moving contact which reciprocates along the horizontal direction, so that the space in the left and right directions of the air box is fully utilized, and the height of the air box is reduced. An earth fracture is formed between the grounding moving contact 21 and the grounding static contact 36, and an observation window 29 is arranged at a position on the box body corresponding to the earth fracture so as to observe the opening and closing positions of the grounding moving contact 21. Wherein the contact carrier 20 and the contact assembly 27 are fixed on two side plates opposite to the air box 16 respectively.
In this embodiment, the grounding fixed contact 36 is composed of a plurality of petal-shaped contact fingers, so that the stable contact between the grounding movable contact 21 and the grounding fixed contact 36 is ensured, and the flow area is increased; the outer side of the grounding static contact 36 is provided with a shielding cover 35 to optimize the electric field at the grounding static contact 36. One end of the shielding cover 35 facing the grounding movable contact 21 is provided with an arc-resistant body resistant to arc erosion so as to lead away an arc generated between the grounding movable contact 21 and the grounding fixed contact 36 and prevent the arc from eroding the grounding fixed contact 36. Wherein, the arc-resistant body is made of copper-tungsten alloy.
The lower isolation static contact and the grounding static contact are integrally processed and formed, the structure is simple, the electric connection is less, and the heating value is reduced. In addition, because the grounding static contact and the lower isolation static contact are both positioned below the lower wire outlet seat, the isolation operation and the grounding operation are respectively met through the lower isolation static contact and the grounding static contact, and thus, even if the transmission precision is low, the isolation fracture and the grounding fracture can be ensured to be insulated simultaneously, and the insulation requirement of the gas-filled cabinet is further ensured.
Example 2 of the inflatable cabinet of the invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the lower isolation stationary contact and the grounding stationary contact are integrally formed and are molded together in the insulator by casting. In this embodiment, the lower isolation static contact and the ground static contact are separately formed by machining and are respectively molded in two independent insulators by casting, wherein the lower isolation static contact and the ground static contact are conductively connected through a conductive bar, and a bus can be connected to the lower isolation static contact or the ground static contact. In other embodiments, the lower isolation static contact and the grounding static contact can be cast and molded in the same insulator based on the condition that the lower isolation static contact and the grounding static contact are separately molded.
Example 3 of the inflatable cabinet of the invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the grounded fixed contact has a grounded socket with an opening facing the horizontal direction, and the grounded movable contact is a direct-acting movable contact that reciprocates along the horizontal direction. In this embodiment, the grounding fixed contact is provided with a U-shaped slot, and the grounding fixed contact is a swing-type moving contact.
Example 4 of the inflatable cabinet of the invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, a contact sleeve for connecting a cable is fixedly disposed on a top plate of a box, and an upper isolation stationary contact and the contact sleeve are molded together by casting. In this embodiment, the contact sleeve is connected to the sidewall of the bus bar room, the contact sleeve is electrically connected to the upper isolation fixed contact through the busbar, and the upper isolation fixed contact is connected to the top plate of the box body through the insulator.
Example 5 of the inflatable cabinet of the invention:
the present embodiment is different from embodiment 1 in that in embodiment 1, the grounded stationary contact is composed of a plurality of lobed contact fingers. In this embodiment, the grounding stationary contact has a jack, and an annular conductive contact finger is disposed in the jack.
The gas tank of the gas-filled cabinet according to the embodiment of the present invention has the same structure as the gas tank described in any one of embodiments 1 to 5 of the gas-filled cabinet, and thus, the details thereof are not repeated herein.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The gas tank of the gas-filled cabinet is characterized by comprising a tank body, wherein a solid-sealed polar pole (24) is arranged in the tank body, the solid-sealed polar pole (24) is vertically arranged, and the solid-sealed polar pole (24) is provided with an upper wire outlet seat (19) and a lower wire outlet seat (25); a lower isolation moving contact (26) is assembled in the lower outgoing line seat (25) in a conductive sliding mode along the up-down direction, a lower isolation static contact (34) and a grounding static contact (36) are arranged below the lower outgoing line seat (25) in the box body, a lower isolation fracture is formed between the lower isolation moving contact (26) and the lower isolation static contact (34), and the grounding static contact (36) is in conductive connection with the lower isolation static contact (34); the bottom of the box body is provided with a wire inlet and outlet sleeve (28), the wire inlet and outlet sleeve (28) is connected with a bus (22), and one of the grounding static contact (36) and the lower isolation static contact (34) is electrically and fixedly connected with the bus (22); a contact frame (20) is further arranged in the box body, a grounding moving contact (21) is movably assembled on the contact frame (20) in a reciprocating mode, and a grounding fracture is formed between the grounding moving contact (21) and a grounding static contact (36).
2. The air box of the gas-filled cabinet as claimed in claim 1, wherein the lower isolation static contact (34) and the grounding static contact (36) are integrally formed.
3. The air box of the inflatable cabinet as claimed in claim 2, wherein a positioning step (30) is provided at a lower portion of the lower isolation stationary contact (34), a threaded hole is provided on a vertical surface of the positioning step (30), and the bus bar (22) is fixed on the positioning step (30) through the threaded hole.
4. The air box of an inflatable cabinet as claimed in claim 1, 2 or 3, wherein the grounding fixed contact (36) has a grounding socket opening in the horizontal direction, and the grounding movable contact (21) is a direct-acting movable contact reciprocating in the horizontal direction.
5. The air box of the gas-filled cabinet according to claim 1, 2 or 3, wherein the upper wire outlet seat (19) is internally and electrically assembled with an upper isolation moving contact (18) in a sliding manner along the vertical direction, an upper isolation static contact (17) is arranged above the upper wire outlet seat (19) in the box body, and an upper isolation fracture is formed between the upper isolation moving contact (18) and the upper isolation static contact (17).
6. The air box of the inflatable cabinet of claim 5, wherein a contact sleeve (23) for connecting a cable is fixedly arranged on a top plate of the box body, and the upper isolation static contact (17) and the contact sleeve (23) are molded together by casting.
7. The air box of the inflatable cabinet of claim 1, 2 or 3, wherein the box body is provided with observation windows (29) at positions corresponding to the lower isolation fracture and the grounding fracture respectively.
8. The air box of a gas-filled cabinet according to claim 1, 2 or 3, characterized in that the stationary grounding contact (36) is composed of a plurality of lobed contact fingers.
9. The air box of the inflatable cabinet of claim 8, wherein a shielding cover (35) is arranged outside the grounding fixed contact (36).
10. Gas-filled cabinet, comprising a cabinet body having a gas box, characterized in that the gas box is according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547678.8A CN114362027B (en) | 2021-12-16 | 2021-12-16 | Inflatable cabinet and air box thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547678.8A CN114362027B (en) | 2021-12-16 | 2021-12-16 | Inflatable cabinet and air box thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114362027A true CN114362027A (en) | 2022-04-15 |
| CN114362027B CN114362027B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111547678.8A Active CN114362027B (en) | 2021-12-16 | 2021-12-16 | Inflatable cabinet and air box thereof |
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| CN (1) | CN114362027B (en) |
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| WO2018086561A1 (en) * | 2016-11-12 | 2018-05-17 | 上海天灵开关厂有限公司 | Gas-insulated bus grounding component, grounding device and gas-insulated switch cabinet |
| CN106960758A (en) * | 2017-04-05 | 2017-07-18 | 平高集团有限公司 | A kind of switch cubicle and its switching device |
| CN211208317U (en) * | 2019-11-04 | 2020-08-07 | 宇邦电气有限公司 | Isolated vacuum circuit breaker |
| CN111696819A (en) * | 2020-05-13 | 2020-09-22 | 平高集团有限公司 | Solid-sealed polar pole and ring main unit using same |
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| CN114362027B (en) | 2024-04-09 |
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