CN102420399B - Isolated insulation cover and isolating switch device - Google Patents
Isolated insulation cover and isolating switch device Download PDFInfo
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- CN102420399B CN102420399B CN201110240658.6A CN201110240658A CN102420399B CN 102420399 B CN102420399 B CN 102420399B CN 201110240658 A CN201110240658 A CN 201110240658A CN 102420399 B CN102420399 B CN 102420399B
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Abstract
The invention discloses an isolated insulation cover and an isolating switch device, belonging to the field of conductive connection devices. The isolating switch device is composed of an isolated insulation cover and an insulation switch unit, wherein the insulation cover comprises a cover body which is made of a solid insulation material and has an open back face; an upper plate of the cover body is provided with a first step hole; a first insulation cover is installed in an upper section hole of the first step hole; the first insulation cover is provided with a second step hole; a lower plate of the cover body is provided with a first through hole; a second insulation cover is installed on the first through hole; a third step hole is formed at the center of the second insulation cover; a bump is arranged at the middle part of the front surface of a front plate of the cover body; the bump is provided with a casing connection hole communicated to the inner cavity of the cover body; the left and the right sidewalls of the inner cavity of the cover body are symmetrically provided with a pair of ribs; and a three-position isolating switch unit is installed in the isolated insulation cover. The isolated insulation cover and the isolating switch device disclosed by the invention have the advantages of small size, convenience for installing in on-site construction, reduced size for the box body of the power distribution unit, and saved cost; and the isolating switch device can achieve the functions of three stations consisting of switch-on operation, isolating and earthing.
Description
Technical field
The present invention relates to conductive connecting device technical field, espespecially a kind of isolated insulation cover and isolation switch device.
Background technology
In existing manufacture power transmission and distribution device product technology, also adopt in a large number at present the power distribution equipment taking SF6 gas as main insulation, various electric elements in metal cabinet are all exposed in SF6 gas, the Disconnecting switch unit that it is inner and transmission device, the connection of cable outgoing apparatus and bus is exposed in SF6 gas, existing Disconnecting switch unit adopts disconnecting link formula, it is large that itself takies body, and SF6 gas in casing can not be revealed, gas-insulated between isolation earthing switch unit and other electric elements distance wants large simultaneously, so just make metal box volume very large, sealing requirements is high, processing technology complexity, cause the cost of metal cabinet high, safeguard that detection is more complicated.
Summary of the invention
The object of the present invention is to provide a kind of isolated insulation cover and isolation switch device, its volume is little, site operation is easy for installation, adopt solid insulation be combined with air insulation mode and other electric elements between layout apart from diminishing, the box volume of power distribution equipment is diminished, save cost and isolation switch device and can realize combined floodgate operation, isolation and three stations of ground connection.
To achieve these goals, technical solution of the present invention is: a kind of isolated insulation cover, wherein this insulating cover comprises the uncovered cuboid cover body below that solid insulating material is made, the upper plate of described cover body is provided with first shoulder hole of two-segment type up and down of convergent, in the upper knothole chamber of described the first shoulder hole, the first insulating case is installed, described the first insulating case is provided with the second shoulder hole, the lower plate of described cover body is provided with the first through hole, on described the first through hole, the second insulating case is installed, the center of described the second insulating case is provided with three-section type the 3rd shoulder hole of convergent, the header board front surface middle part of described cover body is provided with projection, described projection is provided with sleeve pipe connecting hole, described sleeve pipe connecting hole passes into the inner chamber of cover body, the 3rd insulating case is installed in described sleeve pipe connecting hole, described the 3rd insulating case is provided with the 6th through hole that passes into mask body intracavity, a left side for described mask body intracavity, right side wall middle part is arranged with a pair of the first fin extending along cover body length direction.
Isolated insulation cover of the present invention, the three-section type shoulder hole that wherein said the 6th through hole is convergent.
Isolated insulation cover of the present invention, the header board upper and lower part of wherein said cover body is provided with respectively an inspection hole, on two described inspection holes, is separately installed with an observation window.
Isolated insulation cover of the present invention, the outer surface of wherein said cover body is provided with some ring-type second fins parallel with the forward and backward surface of cover body, is positioned on the front surface of cover body header board of described projection upper and lower and is respectively equipped with third and fourth fin.
Isolated insulation cover of the present invention, the lower plate bottom surface of wherein said cover body is provided with several footing Connection Blocks.
Isolated insulation cover of the present invention, the uncovered position below of wherein said cover body is provided with rear plate.
Isolation switch device of the present invention, comprising Disconnecting switch unit and described isolated insulation cover, described Disconnecting switch unit comprises lengthening insulating bar, leading screw, conductive moving contact, room fixed contact, screw, isolation fixed contact, grounding static contact, conductive plate and input terminal, described input terminal is fixed on the mask body intracavity upper surface of described isolated insulation cover, described input terminal is provided with second, three through holes, the shape symmetry of described isolation fixed contact and grounding static contact, the middle part of described isolation fixed contact and grounding static contact is respectively equipped with the 4th, five-way hole, the upper end of described isolation fixed contact is inserted in described third through-hole, described isolation fixed contact is fixedly connected with described input terminal, the lower end of described grounding static contact is installed in the 3rd shoulder hole of described the second insulating case, described room fixed contact and conductive moving contact are hollow circular cylinder, the outer surface of described room fixed contact is provided with annular the 5th fin, described the 5th fin is spirally connected fixing by the first fin of bolt and cover body, the described the 5th, between one fin, conductive plate is installed, described conductive plate is positioned at the 6th lead to the hole site place of described isolated insulation cover, described conductive moving contact is through the inner chamber of room fixed contact, the outer surface of described conductive moving contact is provided with and connects on it along axis direction, the groove of lower end, in described groove, be placed with slide bar, described slide bar and room fixed contact are connected and fixed, the upper end of described leading screw is connected with the lower end of described lengthening insulating bar, the lower end of described leading screw is successively through second of described cover body, one shoulder hole, the fourth hole of isolation fixed contact, the inner chamber of conductive moving contact, after the fifth hole of grounding static contact, be inserted in the 3rd shoulder hole of the second insulating case, on described leading screw, be bolted with screw, described screw is between leading screw and conductive moving contact, described screw and conductive moving contact are spirally connected, described the first insulating case upper, between bottom and leading screw, be separately installed with bearing holder (housing, cover) nut and deep groove ball bearing.
Isolation switch device of the present invention, the outer surface of wherein said lengthening insulating bar is provided with some articles of annulars the 6th fin, and the inner chamber upper and lower end of described room fixed contact is respectively equipped with annular groove.
Isolation switch device of the present invention, wherein said fourth, fifth through hole is cylindrical stepped holes.
Isolation switch device of the present invention is wherein separately installed with a circlip on the leading screw between upper end and deep groove ball bearing and first insulating case of described deep groove ball bearing.
Adopt after such scheme, isolated insulation cover of the present invention and isolation switch device pass through at Disconnecting switch unit outer cover isolated insulation cover, isolated insulation enclosure volume is small and exquisite, Disconnecting switch unit is designed to upper and lower Direct Action Type simultaneously and connects motion mode, reduce like this volume of Disconnecting switch unit, and the small and exquisite isolated insulation cover of Disconnecting switch unit outer cover volume of small size, make insulation between Disconnecting switch unit and other electric elements become air and fixed insulation combination insulate from gas-insulated, insulation distance between Disconnecting switch unit and other electric elements is diminished, and make the electric elements characteristics of compact layout in power distribution equipment, reduce the volume of power distribution equipment casing, provide cost savings, and the problem such as need not consider to leak gas in the time of construction and installation poisoning, when installation, isolated switchgear is set to ground state, so just can directly Disconnecting switch unit be installed on safely in isolated insulation cover, easy for installation, isolation switch device can realize by Direct Action Type motion mode the operation of closing a floodgate, isolation, three service positions of ground connection.
Brief description of the drawings
Fig. 1 is the rear perspective structural representation of isolated insulation cover of the present invention;
Fig. 2 is the front view of isolated insulation cover of the present invention;
Fig. 3 is the left view of isolated insulation cover of the present invention;
Fig. 4 is the upward view of isolated insulation cover of the present invention;
Fig. 5 is the structural representation of the Disconnecting switch unit of isolation switch device of the present invention;
Fig. 6 is the backsight structural representation of isolation switch device of the present invention;
Fig. 7 is that sectional structure schematic diagram is looked on a left side for isolation switch device of the present invention.
Below in conjunction with accompanying drawing, by embodiment, the present invention is described further.
Embodiment
Refer to shown in Fig. 1 to Fig. 4 and Fig. 7, isolated insulation cover of the present invention comprises the uncovered cuboid cover body 1 below that solid insulating material epoxy resin is made, and the uncovered position below of cover body 1 also can be installed rear plate as required.After general installation, the situation of plate mostly is the severe place of environment, adds that rear plate can prevent that each parts of the switch isolation unit of cover body 1 inner chamber are oxidized.Only introduce the service condition of plate after not adding herein under home.The upper plate of cover body 1 is processed with first shoulder hole 11 of two-segment type up and down of convergent, in the upper knothole chamber of the first shoulder hole 11, the first insulating case 2 is installed, on the first insulating case 2, be processed with the second shoulder hole 21, the lower plate of cover body 1 is processed with the first through hole 12, the second insulating case 3 is installed on the first through hole 12, the center of the second insulating case 3 is processed with three-section type the 3rd shoulder hole 31 of convergent, and the lower plate bottom surface of cover body 1 is provided with two footing Connection Blocks 19.Footing Connection Block 19 is in order to be connected design with the dividing plate of switch cabinet intracoelomic cavity.
The header board front surface middle part of cover body 1 is processed with projection 13, on projection 13, be processed with sleeve pipe connecting hole 131, sleeve pipe connecting hole 131 passes into the inner chamber of cover body 1, and the center on the 3rd insulating case 4, the three insulating cases 4 that is provided with in sleeve pipe connecting hole 131 is processed with the 6th through hole 41 that passes into cover body 1 inner chamber.Be positioned on the front surface of cover body 1 header board of projection 13 upper and lowers and be processed with respectively the 3rd fin 17 and the 4th fin 18.It is in order to increase insulation creep distance that the 3rd fin 17 and the 4th fin 18 are set.The header board upper and lower part of cover body 1 is processed with respectively 15, two inspection holes 15 of an inspection hole and lays respectively at the below of the 3rd fin 17 tops and the 4th fin 18.On two inspection holes 15, be separately installed with the observation window that can see cover body 1 inner chamber.Can observe like this working condition of the Disconnecting switch unit in cover body.Reduce Disconnecting switch unit isolation fracture accidents happened rate in isolation cover body.The left and right sidewall middle part of cover body 1 inner chamber is symmetrily processed with a pair of the first fin 14 extending along cover body 1 length direction.The outer surface of cover body 1 is processed with some ring-type second fins 16 parallel with the forward and backward surface of cover body 1.It is in order to increase insulation creep distance equally that annular the second fin 16 is set.
Refer to shown in Fig. 5 to Fig. 7, isolation switch device comprises Disconnecting switch unit and isolated insulation cover, Disconnecting switch unit comprises lengthening insulating bar 5, leading screw 6, conductive moving contact 7, room fixed contact 8, screw 9, isolation fixed contact 10, grounding static contact 20, conductive plate 30 and input terminal 40, input terminal 40 is secured by bolts in the cover body 1 inner chamber upper wall of isolated insulation cover, on input terminal 40, be processed with the second through hole 401 and third through-hole 402, the shape symmetry of isolation fixed contact 10 and grounding static contact 20, the middle part of isolation fixed contact 10 and grounding static contact 20 is processed with respectively fourth hole 101 and fifth hole 201, fourth hole 101 and fifth hole 201 are cylindrical stepped holes.It is in order to increase insulation creep distance that fourth hole 101 and fifth hole 201 are provided with stepped bore.The upper end of isolation fixed contact 10 is inserted in third through-hole 402, isolation fixed contact 10 is bolted fixing with input terminal 40, the lower end of grounding static contact 20 is installed in the 3rd shoulder hole 31 of the second insulating case 3, room fixed contact 8 and conductive moving contact 7 are hollow circular cylinder, the outer surface of room fixed contact 8 is processed with annular the 5th fin 81, the 5th fin 81 is spirally connected fixing by the first fin 14 of bolt and cover body 1, between the 5th fin 81 and the first fin 14, conductive plate 30 is installed, conductor plate 30 is positioned at the 6th through hole 41 positions.The inner chamber upper and lower side of room fixed contact 8 is processed with respectively annular groove 82.This annular groove 82 plays the effect that increases insulation creep distance.Conductive moving contact 7 is through the inner chamber of room fixed contact 8, the outer surface of conductive moving contact 7 is processed with the groove 71 that connects conductive moving contact 7 upper and lower ends along axis direction, in groove 71, be placed with slide bar 72, slide bar 72 is bolted fixing with room fixed contact 8, peg graft with the lower end that lengthens insulating bar 5 in the upper end of leading screw 6, the outer surface that lengthens insulating bar 5 is processed with some articles of annulars the 6th fin 51.It is also in order to increase insulation creep distance that annular the 6th fin 51 is set, the lower end of leading screw 6 is passed the second shoulder hole 21 of cover body 1 successively, the first shoulder hole 11, the fourth hole 101 of isolation fixed contact 10, the inner chamber of conductive moving contact 7, after the fifth hole 201 of grounding static contact 20, be inserted in the 3rd shoulder hole 31 of the second insulating case 3, on leading screw 6, be bolted with screw 9, screw 9 is between leading screw 6 and conductive moving contact 7, screw 9 is spirally connected with conductive moving contact 7, the first insulating case 2 upper, between bottom and leading screw 6, be separately installed with bearing holder (housing, cover) nut 50 and deep groove ball bearing 60, on the leading screw 6 between upper end and deep groove ball bearing 60 and first insulating case 2 of deep groove ball bearing 60, be separately installed with a circlip 70.
When use, together with cable sleeve is bolted on the conductive plate 30 of Disconnecting switch unit, to lengthen insulating bar 5 is connected with transmission device, by the bus of every phase respectively through in the second through hole 401 of the input terminal 40 in an isolated insulation cover and bus and input terminal 40 are fixed, three isolated insulation covers are connected and form three-phase circuit with three buses respectively, an isolation earthing switch is installed in each isolated insulation cover, when normal work, when working in actuation mechanism control transmission device, when transmission device drives lengthening insulating bar 5 to rotate, lengthening insulating bar 5 drives leading screw 6 to rotate, because cavity isolation fixed contact 8 and slide bar 72 and the first fin 14 are spirally connected fixing, and screw 9 is spirally connected fixing with conductive moving contact 7, like this in the time that leading screw 6 rotates, drive screw 9 to rotate backward, because being stopped by slide bar 72, can not rotate conductive moving contact 7, therefore can only move up and down along groove 71, like this when conductive moving contact moves upward and isolate fixed contact 10 while contacting, for combined floodgate running status, and in the time that transmission device drives leading screw 6 to rotate backward, conductive moving contact 7 moves down along leading screw 6, in the time contacting with grounding static contact 20, is ground state, in the time of the inner chamber of conductive moving contact 7 in room fixed contact 8, it is isolation.
Isolated insulation cover of the present invention and isolation switch device pass through at Disconnecting switch unit outer cover isolated insulation cover, Disconnecting switch unit is designed to upper and lower Direct Action Type simultaneously and connects motion mode, reduce like this volume of Disconnecting switch unit, and the small and exquisite isolated insulation cover of Disconnecting switch unit outer cover volume of small size, make insulation between Disconnecting switch unit and other electric elements become air and solid insulation combination insulate from gas-insulated, insulation distance between Disconnecting switch unit and other electric elements is diminished, and make the electric elements characteristics of compact layout in power distribution equipment, reduce the volume of power distribution equipment casing, provide cost savings, and the problem such as need not consider to leak gas in the time of construction and installation poisoning, when installation, isolated switchgear is set to ground state, so just can directly Disconnecting switch unit be installed on safely in isolated insulation cover, easy for installation, isolation switch device can realize by Direct Action Type motion mode the operation of closing a floodgate, isolation, three service positions of ground connection.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention, all should fall in the definite protection range of claims of the present invention.
Claims (10)
1. an isolated insulation cover, it is characterized in that: this insulating cover comprises the uncovered cuboid cover body (1) below that solid insulating material is made, the upper plate of described cover body (1) is provided with first shoulder hole of two-segment type up and down (11) of convergent, in the upper knothole chamber of described the first shoulder hole (11), the first insulating case (2) is installed, described the first insulating case (2) is provided with the second shoulder hole (21), the lower plate of described cover body is provided with the first through hole (12), the second insulating case (3) is installed on described the first through hole (12), the center of described the second insulating case (3) is provided with three-section type the 3rd shoulder hole (31) of convergent, the header board front surface middle part of described cover body (1) is provided with projection (13), described projection (13) is provided with sleeve pipe connecting hole (131), described sleeve pipe connecting hole (131) passes into the inner chamber of cover body (1), the 3rd insulating case (4) is installed in described sleeve pipe connecting hole (131), described the 3rd insulating case (4) is provided with the 6th through hole (41) that passes into cover body (1) inner chamber, a left side for described cover body (1) inner chamber, right side wall middle part is arranged with a pair of the first fin (14) extending along cover body (1) length direction.
2. isolated insulation cover as claimed in claim 1, is characterized in that: the three-section type shoulder hole that described the 6th through hole (41) is convergent.
3. isolated insulation cover as claimed in claim 1 or 2, is characterized in that: the header board upper and lower part of described cover body (1) is provided with respectively an inspection hole (15), on two described inspection holes (15), is separately installed with an observation window.
4. isolated insulation cover as claimed in claim 3, it is characterized in that: the outer surface of described cover body (1) is provided with some ring-type second fins (16) parallel with the forward and backward surface of cover body (1), be positioned on the front surface of cover body (1) header board of described projection (13) upper and lower and be respectively equipped with third and fourth fin (17,18).
5. isolated insulation cover as claimed in claim 4, is characterized in that: the lower plate bottom surface of described cover body (1) is provided with several footing Connection Blocks (19).
6. the isolated insulation cover as described in claim 1,2,4 or 5, is characterized in that: the uncovered position below of described cover body (1) is provided with rear plate.
7. an isolation switch device, it is characterized in that: comprise Disconnecting switch unit and the isolated insulation cover as described in one of claim 1-6, described Disconnecting switch unit comprises lengthening insulating bar (5), leading screw (6), conductive moving contact (7), room fixed contact (8), screw (9), isolation fixed contact (10), grounding static contact (20), conductive plate (30) and input terminal (40), described input terminal (40) is fixed on cover body (1) the inner chamber upper surface of described isolated insulation cover, described input terminal (40) is provided with second, three through holes (401, 402), the shape symmetry of described isolation fixed contact (10) and grounding static contact (20), the middle part of described isolation fixed contact (10) and grounding static contact (20) is respectively equipped with the 4th, five-way hole (101, 201), the upper end of described isolation fixed contact (10) is inserted in described third through-hole (402), described isolation fixed contact (10) is fixedly connected with described input terminal (40), the lower end of described grounding static contact (20) is installed in the 3rd shoulder hole (31) of described the second insulating case (3), described room fixed contact (8) and conductive moving contact (7) are hollow circular cylinder, the outer surface of described room fixed contact (8) is provided with annular the 5th fin (81), described the 5th fin (81) is spirally connected fixing by first fin (14) of bolt and cover body (1), the described the 5th, one fin (81, 14) conductive plate (30) is installed between, described conductive plate (30) is positioned at the 6th through hole (41) position of described isolated insulation cover, described conductive moving contact (7) is through the inner chamber of room fixed contact (8), the outer surface of described conductive moving contact (7) is provided with and connects on it along axis direction, the groove (71) of lower end, in described groove (71), be placed with slide bar (72), described slide bar (72) is connected and fixed with room fixed contact (8), the upper end of described leading screw (6) is connected with the lower end of described lengthening insulating bar (5), the lower end of described leading screw (6) is successively through second of described cover body (1), one shoulder hole (21, 11), the fourth hole (101) of isolation fixed contact (10), the inner chamber of conductive moving contact (7), after the fifth hole (201) of grounding static contact (20), be inserted in the 3rd shoulder hole (31) of the second insulating case (3), on described leading screw (6), be bolted with screw (9), described screw (9) is positioned between leading screw (6) and conductive moving contact (7), described screw (9) is spirally connected with conductive moving contact (7), described the first insulating case (2) upper, between bottom and leading screw (6), be separately installed with bearing holder (housing, cover) nut (50) and deep groove ball bearing (60).
8. isolation switch device as claimed in claim 7, is characterized in that: the outer surface of described lengthening insulating bar (5) is provided with some articles of annulars the 6th fin (51), and the inner chamber upper and lower end of described room fixed contact (8) is respectively equipped with annular groove (82).
9. isolation switch device as claimed in claim 7 or 8, is characterized in that: described fourth, fifth through hole (101,201) is cylindrical stepped holes.
10. isolation switch device as claimed in claim 9, is characterized in that: be positioned on the leading screw (6) between upper end and deep groove ball bearing (60) and first insulating case (2) of described deep groove ball bearing (60) and be separately installed with a circlip (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240658.6A CN102420399B (en) | 2011-08-19 | 2011-08-19 | Isolated insulation cover and isolating switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240658.6A CN102420399B (en) | 2011-08-19 | 2011-08-19 | Isolated insulation cover and isolating switch device |
Publications (2)
| Publication Number | Publication Date |
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| CN102420399A CN102420399A (en) | 2012-04-18 |
| CN102420399B true CN102420399B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110240658.6A Active CN102420399B (en) | 2011-08-19 | 2011-08-19 | Isolated insulation cover and isolating switch device |
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| CN (1) | CN102420399B (en) |
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| CN103928274B (en) * | 2014-04-25 | 2017-01-11 | 爱启（厦门）电气技术有限公司 | Solid insulation vacuum switch three-position isolation earth switch module |
| CN103915282B (en) * | 2014-04-25 | 2016-10-05 | 爱启（厦门）电气技术有限公司 | Novel solid insulation vacuum switch three-station isolating grounding switch module |
| CN103915301B (en) * | 2014-04-25 | 2017-10-10 | 爱启（厦门）电气技术有限公司 | Solid insulation vacuum switch three-station isolating grounding switch device |
| CN104766752B (en) * | 2014-11-17 | 2017-10-27 | 平高集团有限公司 | Compact disconnecting switch |
| CN105185642B (en) * | 2015-09-16 | 2018-02-06 | 上海天灵开关厂有限公司 | A kind of direct-acting three-working-position isolation and gas insulation switch cabinet |
| CN105449574A (en) * | 2015-12-02 | 2016-03-30 | 国家电网公司 | Busbar gas tank for gas-filled tank and gas-filled tank employing busbar gas tank |
| CN105590778B (en) * | 2015-12-18 | 2019-02-22 | 北京双杰电气股份有限公司 | Disconnecting switch |
| CN106783275B (en) * | 2016-11-16 | 2019-02-26 | 许继电气股份有限公司 | It is a kind of switch and GIS switchgear |
| CN106531530B (en) * | 2016-12-16 | 2018-12-04 | 中国西电电气股份有限公司 | A kind of direct acting disconnecting switch |
| CN108615645B (en) * | 2018-07-16 | 2023-08-01 | 中国能源工程（海门）昌泰电气有限公司 | Direct-acting type three-station isolation operating mechanism positioned by special-shaped shaft and control method thereof |
| CN109859980B (en) * | 2018-12-10 | 2020-10-23 | 河南平高通用电气有限公司 | Aerify cabinet and three station switches of direct action formula thereof |
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| CN202206062U (en) * | 2011-08-19 | 2012-04-25 | 北京清畅电力技术股份有限公司 | Isolation insulation cover and isolation switch device |
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- 2011-08-19 CN CN201110240658.6A patent/CN102420399B/en active Active
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| US4678876A (en) * | 1983-06-11 | 1987-07-07 | Bbc Aktiengesellschaft Brown, Boveri & Cie. | Isolating switch apparatus for a high-voltage switching system which may be insulated with SF6 gas |
| CN101847839A (en) * | 2010-06-22 | 2010-09-29 | 北京双杰电气股份有限公司 | 24kV solid insulated fully-closed switch equipment |
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| CN102420399A (en) | 2012-04-18 |
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