CN220439477U - Grounding switch - Google Patents
Grounding switch Download PDFInfo
- Publication number
- CN220439477U CN220439477U CN202321818725.2U CN202321818725U CN220439477U CN 220439477 U CN220439477 U CN 220439477U CN 202321818725 U CN202321818725 U CN 202321818725U CN 220439477 U CN220439477 U CN 220439477U
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- China
- Prior art keywords
- insulating plate
- grounding switch
- supports
- housing
- ground
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 239000012212 insulator Substances 0.000 claims description 15
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The embodiment of the utility model discloses a grounding switch, which comprises a shell, wherein the shell is internally provided with: a first insulating plate installed in the housing in a first direction; three supports mounted on the first insulating plate and arranged along a straight line; three conductive rods, each of which passes through one of the supports in the second direction; a second insulating plate connected to the first end of each conductive rod; the first end of the transmission mechanism is connected to the second insulating plate; the driving mechanism is connected to the second end of the transmission mechanism so as to drive the three conducting rods to conduct linear motion in the second direction through the transmission mechanism; and a grounding mechanism to which each support is connected, the grounding switch further comprising three contact pads located outside the housing, each contact pad being arranged in such a manner that when the three conductive bars perform a linear motion in the second direction, the second end of each conductive bar is connected to or disconnected from a corresponding one of the contact pads. The grounding switch has the advantages of simple structure, convenient installation, low cost and reduced number of insulating pieces.
Description
Technical Field
The utility model relates to the technical field of high-voltage switches, in particular to a grounding switch.
Background
The grounding switch is an important component of a gas insulated metal-enclosed switchgear (GIS).
In one conventional grounding switch, three-phase conductors are arranged in a delta configuration in order to isolate the main current loop from the housing. Such a grounding switch has a complicated structure and a large overall size, and is therefore costly to manufacture and inconvenient to install.
In another conventional grounding switch, three-phase conductors are arranged in a straight line. For such a grounding switch, despite the reduced overall size and footprint, the risk of partial discharge is increased due to the large number of insulators employed.
There is therefore an urgent need in the art for a grounding switch that aims at least partially solving the problems with the grounding switches of the prior art described above.
Disclosure of Invention
In view of the above, the embodiment of the utility model provides a grounding switch, which has the advantages of simple structure, convenient installation and low manufacturing cost, and meanwhile, the number of insulating pieces is reduced, so that the probability of partial discharge is greatly reduced, and the protection level is improved because the mechanical shell and the switch shell are integrally formed.
The technical scheme of the embodiment of the utility model is realized as follows:
a grounding switch, characterized in that the grounding switch comprises a housing in which:
a first insulating plate installed in the housing in a first direction and connected to an inner wall of the housing;
three supports mounted on the first insulating plate and arranged along a straight line;
three conductive rods, each of the three conductive rods passing through a respective one of the three supports in a second direction orthogonal to the first direction;
a second insulating plate connected to the first end of each conductive rod;
the first end of the transmission mechanism is connected to the second insulating plate;
the driving mechanism is connected to the second end of the transmission mechanism to drive the three conducting rods to conduct linear motion in the second direction through the transmission mechanism; and
a grounding mechanism to which each of the three supports is connected for safety protection,
the grounding switch further comprises three contact seats positioned outside the shell, wherein each contact seat in the three contact seats is arranged in a mode that when the three conducting rods conduct linear motion in the second direction, the second end of each conducting rod is connected with or disconnected from the corresponding contact seat, and therefore the opening and closing operation of the grounding switch is achieved.
Preferably, but not exclusively, the transmission comprises:
the connecting block is arranged on the second insulating plate;
the first end of the connecting rod is connected to the connecting block;
the first end of the crank arm is connected to the second end of the connecting rod; and
the first end of transmission shaft is connected to the second end of turning arm to the second end of transmission shaft is connected to actuating mechanism, and actuating mechanism drives the transmission shaft rotation, and then drives three conducting rod through turning arm, connecting rod, connecting block in proper order and carries out rectilinear motion in the second direction.
Preferably, but not exclusively, the first end of the connecting rod is connected to the connecting block by a pin, and the second end of the connecting rod is connected to the first end of the lever by a pin.
Preferably, but not exclusively, the grounding mechanism comprises:
three connection copper bars, a first end of each connection copper bar of the three connection copper bars being connected to a respective one of the three supports;
three ground insulators, each of the three ground insulators penetrating the housing, and a first end of each ground insulator located within the housing connected to a second end of a respective one of the three connection copper bars; and
three ground rows, each of the three ground rows being connected to a second end of a respective one of the three ground insulators that is located outside the housing.
Preferably, but not exclusively, each of the three standoffs has a standoff leg, each standoff leg being connected to a first end of a respective one of the three connection copper bars.
Preferably, but not exclusively, a guide ring and spring fingers are mounted in each of the three mounts.
Preferably, but not exclusively, the first end of each conductive rod is connected to the second insulating plate by a bolt.
Preferably, but not exclusively, the first insulating plate and the second insulating plate are both molded with epoxy resin or with vacuum-impregnated epoxy glass cloth plates.
Preferably, but not exclusively, three standoffs are mounted on the first insulating plate in equidistant spacing from each other in the first direction.
Preferably, but not exclusively, one of the three mounts is mounted centrally on the first insulating plate and the connection block is mounted centrally on the second insulating plate.
Drawings
The above and other features and advantages of the present utility model 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 a diagram schematically illustrating a grounding switch provided by an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a grounding switch provided by an embodiment of the present utility model taken along line M-M in FIG. 1; and
fig. 3 is another schematic cross-sectional view of the grounding switch provided by the embodiment of the utility model taken along line N-N in fig. 1.
Wherein, the reference numerals are as follows:
Detailed Description
The present utility model will be further described in detail with reference to the following examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Fig. 1 is a diagram schematically illustrating a grounding switch provided by an embodiment of the present utility model. In order to more clearly show the internal structure of the grounding switch provided by the embodiment of the present utility model, fig. 2 and 3 are provided herein, wherein fig. 2 is a schematic cross-sectional view of the grounding switch provided by the embodiment of the present utility model taken along line M-M in fig. 1, and fig. 3 is another schematic cross-sectional view of the grounding switch provided by the embodiment of the present utility model taken along line N-N in fig. 1.
As shown in fig. 2 and 3, the grounding switch 100 provided in the embodiment of the present utility model includes a housing 102, where: a first insulating plate 106, the first insulating plate 106 being mounted in the housing 102 in a first direction and connected to an inner wall of the housing 102; three supports 103, the three supports 103 being mounted on the first insulating plate 106 and arranged along a straight line; three conductive rods 107, each conductive rod 107 of the three conductive rods 107 passing through a respective one 103 of the three supports 103 in a second direction orthogonal to the first direction; a second insulating plate 108, the second insulating plate 108 being connected to a first end of each conductive rod 107; a transmission mechanism, a first end of which is connected to the second insulating plate 108; a driving mechanism 116, the driving mechanism 116 being connected to a second end of the transmission mechanism to drive the three conductive rods 107 to perform linear movement in a second direction via the transmission mechanism; and a grounding mechanism to which each of the three holders 103 is connected for safety protection, the grounding switch 100 further comprising three contact pads 101 located outside the housing 102, each of the three contact pads 101 being disposed in such a manner that when the three conductive bars 107 perform linear movement in the second direction, a second end of each of the conductive bars 107 is turned on or off with a corresponding one of the contact pads 101, thereby achieving a switching operation of the grounding switch 100.
Compared with the traditional grounding switch, the grounding switch provided by the embodiment of the utility model has the advantages of simple structure, convenience in installation and low manufacturing cost, meanwhile, the number of the insulating pieces is reduced, the probability of partial discharge is greatly reduced, and the protection level is improved because the mechanical shell and the switch shell are integrally formed.
In a preferred embodiment, the transmission mechanism comprises: a connection block 109, the connection block 109 being mounted on the second insulating plate 108; a link 111, a first end of the link 111 being connected to the connection block 109; a crank arm 112, a first end of the crank arm 112 being connected to a second end of the link 111; and a driving shaft 117, a first end of the driving shaft 117 is connected to a second end of the crank arm 112, and a second end of the driving shaft 117 is connected to a driving mechanism 116, and the driving mechanism 116 drives the driving shaft 117 to rotate, so as to drive the three conductive rods 107 to perform linear motion in a second direction sequentially through the crank arm 112, the connecting rod 111, and the connecting block 109, as can be clearly seen in fig. 2.
Also, as can be clearly seen in fig. 2, a first end of the link 111 is connected to the connection block 109 through the shaft pin 110, and a second end of the link 111 is connected to a first end of the crank arm 112 through the shaft pin 110.
In a preferred embodiment, the grounding mechanism comprises: three connection copper bars 113, a first end of each connection copper bar 113 of the three connection copper bars 113 being connected to a respective one 103 of the three supports 103; three ground insulators 114, each ground insulator 114 of the three ground insulators 114 extending through the housing 102, and a first end of each ground insulator 114 located within the housing 102 being connected to a second end of a respective one of the three connection copper bars 113; three ground rows 115, each ground row 115 of the three ground rows 115 being connected to a second end of a respective one of the three ground insulators 114 that is located outside the housing 102, as also can be seen clearly in fig. 2.
Further, as shown in fig. 2, each of the three standoffs 103 has a standoff leg, each standoff leg being connected to a first end of a respective one of the three connection copper bars 113, 113.
Also, as shown in fig. 2, a guide ring 104 and a spring finger 105 are installed in each of the three holders 103.
In a preferred embodiment, the first end of each conductive rod 107 is connected to the second insulating plate 108 by means of a bolt, as can be seen clearly in fig. 2 and 3.
In a preferred embodiment, the first insulating plate 106 and the second insulating plate 108 are each molded from epoxy resin or are each vacuum-impregnated epoxy glass cloth plates.
In a preferred embodiment, three standoffs 103 are mounted on the first insulating plate 106 in equidistant spacing from one another in a first direction, as can be seen clearly in fig. 3.
In a preferred embodiment, one 103 of the three mounts 103 is mounted centrally on a first insulating plate 106 and the connection block 109 is mounted centrally on a second insulating plate 108, as can be seen clearly in fig. 3.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model. Nouns and pronouns for humans in this patent application are not limited to a particular gender.
Claims (10)
1. A grounding switch, characterized in that the grounding switch (100) comprises a housing (102), within which housing (102) is arranged:
a first insulating plate (106), the first insulating plate (106) being mounted within the housing (102) in a first direction and being connected to an inner wall of the housing (102);
three supports (103), the three supports (103) being mounted on the first insulating plate (106) and arranged along a straight line;
-three conductive rods (107), each conductive rod (107) of the three conductive rods (107) passing through a respective one (103) of the three seats (103) along a second direction orthogonal to the first direction;
a second insulating plate (108), the second insulating plate (108) being connected to a first end of each conductive rod (107);
a transmission mechanism, a first end of which is connected to the second insulating plate (108);
-a drive mechanism (116), the drive mechanism (116) being connected to a second end of the transmission mechanism to drive the three conductive rods (107) via the transmission mechanism for linear movement in the second direction; and
a grounding mechanism to which each support (103) of the three supports (103) is connected for safety protection,
the grounding switch (100) further comprises three contact bases (101) located outside the shell (102), wherein each contact base (101) of the three contact bases (101) is arranged in a mode that when the three conducting rods (107) conduct linear motion in the second direction, the second end of each conducting rod (107) is connected with or disconnected from the corresponding contact base (101), and therefore the grounding switch (100) is separated and combined.
2. The grounding switch of claim 1, wherein said transmission mechanism comprises:
-a connection block (109), said connection block (109) being mounted on said second insulating plate (108);
-a connecting rod (111), a first end of the connecting rod (111) being connected to the connecting block (109);
-a lever (112), a first end of the lever (112) being connected to a second end of the connecting rod (111); and
the transmission shaft (117), the first end of transmission shaft (117) is connected to the second end of turning arm (112), and the second end of transmission shaft (117) is connected to actuating mechanism (116), actuating mechanism (116) drive transmission shaft (117) are rotatory, and then loops through turning arm (112), connecting rod (111), connecting block (109) are come the drive three conducting rod (107) carry out rectilinear motion in the second direction.
3. The grounding switch according to claim 2, characterized in that a first end of the connecting rod (111) is connected to the connecting block (109) by means of a shaft pin (110), and a second end of the connecting rod (111) is connected to a first end of the lever arm (112) by means of a shaft pin (110).
4. A grounding switch according to claim 1 or 2, wherein the grounding mechanism comprises:
three connection copper bars (113), a first end of each connection copper bar (113) of the three connection copper bars (113) being connected to a respective one (103) of the three supports (103);
three ground insulators (114), each ground insulator (114) of the three ground insulators (114) extending through the housing (102), and a first end of each ground insulator (114) located within the housing (102) being connected to a second end of a respective one of the three connection copper bars (113); and
three ground rows (115), each ground row (115) of the three ground rows (115) being connected to a second end of a respective one (114) of the three ground insulators (114) located outside the housing (102).
5. The grounding switch according to claim 4, characterized in that each support (103) of the three supports (103) has a support leg, each support leg being connected to a first end of a respective one of the three connection copper bars (113).
6. The earthing switch according to claim 1 or 2, characterized in that a guide ring (104) and a spring finger (105) are mounted in each support (103) of the three supports (103).
7. The grounding switch according to claim 1 or 2, characterized in that the first end of each conducting rod (107) is connected to the second insulating plate (108) by means of a bolt.
8. The grounding switch according to claim 1 or 2, characterized in that the first insulating plate (106) and the second insulating plate (108) are both molded with epoxy resin or with vacuum-impregnated epoxy glass cloth.
9. The earthing switch according to claim 1 or 2, characterized in that said three supports (103) are mounted on said first insulating plate (106) in such a way as to be equally spaced from each other in said first direction.
10. The earthing switch according to claim 2, characterized in that one (103) of the three supports (103) is mounted centrally on the first insulating plate (106) and the connection block (109) is mounted centrally on the second insulating plate (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321818725.2U CN220439477U (en) | 2023-07-11 | 2023-07-11 | Grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321818725.2U CN220439477U (en) | 2023-07-11 | 2023-07-11 | Grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220439477U true CN220439477U (en) | 2024-02-02 |
Family
ID=89699037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321818725.2U Active CN220439477U (en) | 2023-07-11 | 2023-07-11 | Grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220439477U (en) |
-
2023
- 2023-07-11 CN CN202321818725.2U patent/CN220439477U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |