CN217690935U - Double-fracture isolating switch - Google Patents
Double-fracture isolating switch Download PDFInfo
- Publication number
- CN217690935U CN217690935U CN202221546491.6U CN202221546491U CN217690935U CN 217690935 U CN217690935 U CN 217690935U CN 202221546491 U CN202221546491 U CN 202221546491U CN 217690935 U CN217690935 U CN 217690935U
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- contact
- sliding
- crank arm
- guide ring
- support
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Abstract
The utility model discloses a double-break isolating switch, which is used for gas insulated metal enclosed switchgear and comprises a shell; a first contact base and a first insulating basin fixed to a first side of the housing; a second contact base and a second insulating basin fixed to a second side of the housing; the support is arranged in the shell; the first guide ring and the first contact finger are arranged in the support and close to the first side of the shell; the first sliding conducting rod is arranged in the support and moves along the first guide ring, and the first contact finger is abutted against the first sliding conducting rod; the second guide ring and the second contact finger are arranged in the support and close to the second side of the shell; the second sliding conducting rod is arranged in the support and moves along the second guide ring, and the second contact finger is abutted against the second sliding conducting rod; the crank arm is arranged in the shell and rotates around the insulating shaft, two ends of the crank arm are connected with the first sliding conducting rod and the second sliding conducting rod, and the crank arm rotates around the insulating shaft to drive the first sliding conducting rod to be in contact with or disconnected from the first contact seat and the second sliding conducting rod to be in contact with or disconnected from the second contact seat. The isolating switch realizes the switching of larger bus conversion current and voltage.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment and specifically relates to a two-break isolator is related to.
Background
In the field of electrical control, such as gas insulated metal enclosed switchgear (GIS), there is a need for a fast disconnector to quickly isolate a current (e.g. a bus bar switching current) when the circuit breaker is open. In high voltage switches, particularly GIS, coupling contacts are often required as connectors to account for axial and radial differences when modules are mated. In a compensator or cable connection of a GIS, the contacts and the contact block form a contact system and are enclosed in a housing filled with an insulating gas. The contacts may be part of or connected to the conductors and connected by a contact block.
At present, the traditional isolating switch only has one fracture, so no matter the isolating switch is used for the complete interval of the extension of the end part of a bus or is used as a long-term interval extension interface together with the bus in one period, when the voltage withstand test is carried out after extension equipment is installed, the whole bus is required to be powered off, and even the whole power station is powered off. This configuration of disconnector is inconvenient in use and the open and closed busbars convert current and voltage only to a limited extent.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an isolator for optimize isolator's structure, realize that it need not to have a power failure to expand and build all together as long-term interval extension interface in the complete interval of bus-bar tip extension and generating line one-phase, and can open and shut bigger generating line conversion electric current and voltage.
According to the utility model discloses an embodiment provides a isolator for gas insulated metal enclosed switchgear, this isolator includes: a housing; the first contact seat is fixed to the first side of the shell through the first insulating basin; the second contact base is fixed to the second side of the shell through the second insulating basin; a support arranged inside the housing; the first guide ring and the first contact finger are arranged in the support; the first sliding conducting rod penetrates through the first guide ring and is arranged in the support, the first sliding conducting rod is suitable for moving along the first guide ring, the first end of the first sliding conducting rod is opposite to the contact of the first contact seat, and the first contact finger is abutted against the first sliding conducting rod; the second guide ring and the second contact finger are arranged in the support; the second sliding conductive rod penetrates through the second guide ring and is arranged in the support, the second sliding conductive rod is suitable for moving along the second guide ring, the first end of the second sliding conductive rod is opposite to the contact of the second contact seat, and the second contact finger is abutted against the second sliding conductive rod; the connecting lever, the connecting lever sets up in the shell, and the connecting lever can be rotatory around insulating axle to the first end and the first slip conducting rod of connecting lever are connected, and the second end and the second of connecting lever slide the conducting rod and be connected, and wherein, the connecting lever is rotatory around insulating axle, drives the first end of first slip conducting rod and the contact or the disconnection of first touch pad, and drives the first end of second slip conducting rod and the contact or the disconnection of second touch pad.
By the structure, the isolating switch device can be used for expanding a complete interval at the end part of the bus and can be used as a long-term interval expanding interface without power failure expansion in one period.
Preferably, a first end of the crank arm is connected with the first sliding conductive rod via a first connecting rod, and a second end of the crank arm is connected with the second sliding conductive rod via a second connecting rod.
The structure can enable the isolating switch device to have two fractures, and larger bus conversion current and voltage can be switched on and off.
Preferably, the crank arm is connected via an insulated shaft to an external drive mechanism which applies a driving force such that the crank arm is rotatable about the insulated shaft.
The structure can make the isolating switch device compatible with the traditional driving mechanism without configuring a special driving mechanism.
Preferably, in a closing operation of the disconnector, the external driving mechanism applies a driving force such that the crank arm rotates counterclockwise by an angle around the insulating shaft, the crank arm pushes the first end of the first sliding conductive rod to contact with the contact of the first contact base via the first link, and simultaneously, the crank arm pushes the first end of the second sliding conductive rod to contact with the contact of the second contact base via the second link.
The structure can simultaneously perform the opening and closing operation of the two fractures, and can open and close larger bus conversion current and voltage.
Preferably, in a closing operation of the disconnector, the external driving mechanism applies a driving force such that the crank arm rotates 45 degrees counterclockwise about the insulating shaft.
Preferably, the support is fixed to a third side of the housing by a third insulation basin.
Preferably, the disconnector further comprises a shielding element, which is mounted on the support.
Preferably, the first contact seat and the first insulation tub are detachably fixed to the first side of the housing.
Preferably, the second contact base and the second insulation tub are detachably fixed to the second side of the housing.
Preferably, at least one of the first and second fingers is a spring finger.
Preferably, the first guide ring is arranged in a first groove of the support and the first contact finger is arranged in a second groove of the support.
Preferably, the second guide ring is disposed in a third groove of the carrier, and the second contact finger is disposed in a fourth groove of the carrier.
According to the above technical scheme, because the utility model discloses a two break isolator structures, consequently, optimize isolator's structure, realize that the complete interval of bus-bar tip enlargement and bus-bar need not to have a power failure the enlargement when going up simultaneously as long-term interval enlargement interface in one phase to can open and shut bigger generating line conversion current and voltage.
In addition, the double-break isolating switch structure can switch larger bus conversion current and voltage. By detachably fixing the first contact base and the first insulating basin to the first side of the housing and detachably fixing the second contact base and the second insulating basin to the second side of the housing, it is thus possible to install only half of the contact system when only a single isolation is required, enabling a more flexible use.
Drawings
The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:
fig. 1 is an elevation view and a cross-sectional view of a disconnector according to an embodiment of the invention.
Fig. 2 is a front view of a disconnector in a switched-on position according to an embodiment of the invention.
In the above figures, the reference numerals used are as follows:
1: a first insulating basin;
16: a second insulating basin;
13: a third insulating basin;
2: a first contact base;
15: a second contact base;
3: a housing;
4: a support;
5: a first contact finger;
12: a second finger;
6: a first guide ring;
11: a second guide ring;
7: a first sliding conductive rod;
14: a second sliding conductive rod;
8: a first link;
10: a second link;
9: a crank arm;
17: a shielding unit;
18: an insulating shaft;
19: an external drive mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail by referring to the following embodiments.
In order to avoid conflict, the embodiments and features of the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.
Fig. 1 is an elevation view and a cross-sectional view of a disconnector according to an embodiment of the invention. Wherein the left side of fig. 1 showsbase:Sub>A front view ofbase:Sub>A disconnector according to an embodiment of the invention, and the right side of fig. 1 showsbase:Sub>A cross-sectional view taken alongbase:Sub>A-base:Sub>A in the left side of fig. 1.
As shown in the left side view of fig. 1 and the right side view of fig. 1, the double-break disconnecting switch comprises: a housing 3; a first contact base 2 and a first insulation tub 1, the first contact base 2 and the first insulation tub 1 being assembled together and then integrally fixed to a first side of a housing 3 in a detachable manner; a second contact seat 15 and a second insulation tub 16, the second contact seat 15 and the second insulation tub 16 being assembled together and then integrally fixed to a second side of the case 3 in a detachable manner; a holder 4 provided inside the case 3, the holder 4 being assembled with the third insulation tub 13 and then integrally fixed to a third side of the case 3; a first guide ring 6 and a first contact finger 5, which are disposed in the support 4, as shown in fig. 1, the first guide ring 6 is disposed in one groove of the support 4, the first contact finger 5 is disposed in another groove or grooves of the support 4, for example, the first guide ring 6 may be a circular ring made of a polyvinyl chloride material, the first contact finger 5 may be a spring contact finger made of a material having conductivity (e.g., metal), and the first guide ring 6 and the first contact finger 5 are close to the left side of the housing 3; the first sliding conducting rod 7 is arranged in the support 4 through the first guide ring 6, the first sliding conducting rod 7 is suitable for moving along the first guide ring 6, the first end of the first sliding conducting rod 7 corresponds to the contact of the first contact seat 2 in position, and the first contact finger 5 abuts against the first sliding conducting rod 7; a second guide ring 11 and a second contact finger 12, which are disposed in the support 4, and the second guide ring 11 and the second contact finger 12 are close to the right side of the housing 3, as shown in fig. 1, the second guide ring 11 is disposed in one groove of the support 4, and the second contact finger 12 is disposed in another groove or grooves of the support 4, for example, the second guide ring 11 may be a circular ring made of a polyvinyl chloride material, and the second contact finger 12 may be a spring contact finger made of a material (e.g., metal) having electrical conductivity; a second sliding conducting rod 14, which is arranged in the support 4 through the second guide ring 11, and the second sliding conducting rod 14 is suitable for moving along the second guide ring 11, a first end of the second sliding conducting rod 14 is opposite to a contact of the second contact seat 15, and the second contact finger 12 is abutted against the second sliding conducting rod 14; a shield unit 17 mounted on the support 4; the crank arm 9, the crank arm 9 sets up in the shell 3, the crank arm 9 can rotate around insulating axle 18 to the first end of crank arm 9 is connected with the second end of first slip conducting rod 7, and the second end of crank arm 9 is connected with the second end of second slip conducting rod 14, and wherein, the crank arm 9 is rotatory around insulating axle 18, drives the first end of first slip conducting rod 7 and the contact or the disconnection of first touch multitouch 2, and drives the first end of second slip conducting rod 14 and the contact or the disconnection of second touch multitouch 15. In the disconnecting switch with double fractures shown in fig. 1, a first sliding conductive rod 7 is connected with a crank arm 9 and a first connecting rod 8, and a second sliding conductive rod 14 is connected with the crank arm 9 and a second connecting rod 10. For example, a shaft pin is arranged at the second end of the first sliding conductive rod 7, a shaft pin is arranged at the second end of the second sliding conductive rod 14, and shaft pins are arranged at the two ends of the crank arm 9, so that the first sliding conductive rod 7, the crank arm 9 and the first connecting rod 8 are connected together through the shaft pins, the second sliding conductive rod 14, the crank arm 9 and the second connecting rod 10 are connected together through the shaft pins to slide, and the first sliding conductive rod 7 and the second sliding conductive rod 14 move in a manner that the shaft pins are driven by the crank arm 9. In the disconnector shown in fig. 1, the first sliding conductor bar 7 and the first contact base 2 form a break, and the second sliding conductor bar 14 and the second contact base 15 form another break. The crank arm 9 is connected to an external drive mechanism 19 via an insulated shaft 18. In the disconnector shown in fig. 1, a first sliding conductor bar 7 is arranged through the first guide ring 6 and is adapted to move along the first guide ring 6. As shown in fig. 1, the first sliding conductor bar 7 can be horizontally moved left and right under the guidance of the first guide ring 6. The first end of the first sliding conducting rod 7 is used for contacting or disconnecting with a contact of the first contact base 2 so as to realize closing or opening of the isolating switch. Wherein, the first end of the first sliding conducting rod 7 is arranged at the position opposite to the contact of the first contact base 2. As shown in fig. 1, the second sliding conductive rod 14 can be horizontally moved left and right under the guidance of the second guide ring 11. The first end of the second sliding conducting rod 14 is used for contacting or disconnecting with a contact of the second contact seat 15, so as to realize closing or opening of the disconnecting switch. Wherein a first end of the second sliding conductive rod 14 is disposed at a position opposite to the contact of the second contact seat 15. The first and second fingers 5, 12 are preferably spring fingers, but may be other fingers known in the art that meet performance requirements.
Fig. 2 is a front view of a disconnector in a switched-on position according to an embodiment of the invention. The crank arm 9 is connected with the insulating shaft 18 and can rotate around the insulating shaft 18 under the driving of the insulating shaft 18. Normally, the insulating shaft 18 is supplied with rotational power by another driving device (for example, an external driving mechanism 19) outside the disconnecting switch device, and the rotational power directly acts on the insulating shaft 18 to rotate the insulating shaft, thereby driving the crank arm 9 to rotate about the insulating shaft 18. According to the utility model discloses, the mode motion that first slip conducting rod 7 passed through connecting lever 9 and drove first connecting rod 8 for first slip conducting rod 7 contacts with the contact of first touch pad 2 (refer to fig. 2). The first sliding conducting rod 7 is driven by the first connecting rod 8 to move towards the left side, and meanwhile, the first contact finger 5 is compressed. In addition, the second sliding conductive rod 14 moves by the way that the crank arm 9 drives the second connecting rod 10, so that the second sliding conductive rod 14 contacts with the contact of the second contact seat 15 (refer to fig. 2). The second sliding conductive rod 14 is driven by the second connecting rod 10 to move to the right side, and the second contact finger 12 is compressed. Therefore, in the closing operation of the disconnecting switch, the external driving mechanism 19 drives the connecting lever 9 to rotate 45 degrees counterclockwise through the insulating shaft 18, and the connecting lever 9 further drives the first connecting rod 8 and the second connecting rod 10 to respectively push the first sliding conducting rod 7 and the second sliding conducting rod 14 to be simultaneously inserted into the first contact seat 2 and the second contact seat 15, so that the double-break closing is realized. In addition, during opening, the insulating shaft 18 drives the crank arm 9 to drive the first sliding conductive rod 7 to move rightwards, and simultaneously drives the second sliding conductive rod 14 to move leftwards so as to be disconnected with the contact of the first contact seat 2 and the contact of the second contact seat 15 respectively.
According to the above technical scheme, because the utility model discloses a two break isolator structures, consequently, optimize isolator's structure, realize that the complete interval of bus-bar tip enlargement and bus-bar need not to have a power failure the enlargement when going up simultaneously as long-term interval enlargement interface in one phase to can open and shut bigger generating line conversion current and voltage.
In addition, the double-break isolating switch structure can be opened and closed, and larger bus conversion current and voltage are limited. By detachably fixing the first contact base and the first insulating basin to the first side of the housing and detachably fixing the second contact base and the second insulating basin to the second side of the housing, it is thus possible to install only half of the contact system when only a single isolation is required, enabling a more flexible use.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A disconnector for a gas-insulated metal-enclosed switchgear, characterized in that it comprises:
a housing (3);
a first contact base (2) and a first insulating basin (1), the first contact base (2) being fixed to a first side of the housing (3) by the first insulating basin (1);
a second contact base (15) and a second insulating basin (16), the second contact base (15) being fixed to a second side of the housing (3) by the second insulating basin (16);
a support (4) arranged inside the housing (3);
a first guide ring (6) and a first contact finger (5), wherein the first guide ring (6) and the first contact finger (5) are arranged in the support (4);
a first sliding conductive rod (7) which penetrates through the first guide ring (6) and is arranged in the support (4), the first sliding conductive rod (7) is suitable for moving along the first guide ring (6), a first end of the first sliding conductive rod (7) is opposite to a contact of the first contact seat (2), and the first contact finger (5) is abutted against the first sliding conductive rod (7);
a second guide ring (11) and a second contact finger (12), the second guide ring (11) and the second contact finger (12) being arranged in the support (4);
a second sliding conducting rod (14) which is arranged in the support (4) through the second guide ring (11), wherein the second sliding conducting rod (14) is suitable for moving along the second guide ring (11), the first end of the second sliding conducting rod (14) is opposite to the contact of the second contact seat (15), and the second contact finger (12) is abutted against the second sliding conducting rod (14);
the crank arm (9), the crank arm (9) is arranged in the shell (3), the crank arm (9) can rotate around an insulating shaft (18), the first end of the crank arm (9) is connected with the first sliding conductive rod (7), the second end of the crank arm (9) is connected with the second sliding conductive rod (14),
the crank arm (9) rotates around the insulating shaft (18) to drive the first end of the first sliding conductive rod (7) to be in contact with or disconnected from the contact of the first contact seat (2), and drive the first end of the second sliding conductive rod (14) to be in contact with or disconnected from the contact of the second contact seat (15).
2. The disconnector according to claim 1, characterized in that a first end of the lever arm (9) is connected to the first sliding conductor bar (7) via a first link (8), and a second end of the lever arm (9) is connected to the second sliding conductor bar (14) via a second link (10).
3. The disconnector according to claim 2, characterized in that the crank arm (9) is connected via the insulating shaft (18) with an external drive mechanism (19), which external drive mechanism (19) exerts a drive force such that the crank arm (9) can rotate about the insulating shaft (18).
4. The disconnector according to claim 3, characterized in that, in a closing operation of the disconnector, the external driving mechanism (19) applies a driving force such that the crank arm (9) rotates counterclockwise around the insulating shaft (18) by an angle, the crank arm (9) pushes the first end of the first sliding conductive rod (7) into contact with the contact of the first contact seat (2) via the first link (8), and simultaneously the crank arm (9) pushes the first end of the second sliding conductive rod (14) into contact with the contact of the second contact seat (15) via the second link (10).
5. The disconnector according to claim 4, characterized in that, in a closing operation of the disconnector, the external drive mechanism (19) exerts a driving force such that the crank arm (9) is rotated 45 degrees counterclockwise around the insulating shaft (18).
6. A disconnector according to claim 1, characterized in that the support (4) is fixed to a third side of the housing (3) by means of a third insulating basin (13).
7. A disconnector according to claim 1, characterized in that it further comprises a shielding element (17), which shielding element (17) is mounted on the support (4).
8. The disconnector according to claim 1, characterized in that the first contact seat (2) and the first insulating basin (1) are detachably fixed to a first side of the housing (3).
9. The disconnector according to claim 1, characterized in that the second contact seat (15) and the second insulating basin (16) are detachably fixed to a second side of the housing (3).
10. The disconnector according to claim 1, characterized in that at least one of the first contact finger (5) and the second contact finger (12) is a spring contact finger.
11. A disconnector according to claim 1, characterized in that the first guide ring (6) is arranged in a first recess in the carrier (4) and the first contact finger (5) is arranged in a second recess in the carrier (4).
12. A disconnector according to claim 1, characterized in that the second guide ring (11) is arranged in a third recess in the carrier (4) and the second finger (12) is arranged in a fourth recess in the carrier (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221546491.6U CN217690935U (en) | 2022-06-20 | 2022-06-20 | Double-fracture isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221546491.6U CN217690935U (en) | 2022-06-20 | 2022-06-20 | Double-fracture isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217690935U true CN217690935U (en) | 2022-10-28 |
Family
ID=83711176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221546491.6U Active CN217690935U (en) | 2022-06-20 | 2022-06-20 | Double-fracture isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217690935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117672758A (en) * | 2023-12-15 | 2024-03-08 | 法腾电力装备江苏有限公司 | Novel longitudinal rotation double-isolating-switch electric mechanism |
-
2022
- 2022-06-20 CN CN202221546491.6U patent/CN217690935U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117672758A (en) * | 2023-12-15 | 2024-03-08 | 法腾电力装备江苏有限公司 | Novel longitudinal rotation double-isolating-switch electric mechanism |
| CN117672758B (en) * | 2023-12-15 | 2024-05-28 | 法腾电力装备江苏有限公司 | Longitudinal rotation double-isolating-switch electric mechanism |
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