CN203312132U - Three-position solid insulation isolation switch - Google Patents

Three-position solid insulation isolation switch Download PDF

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Publication number
CN203312132U
CN203312132U CN2013203769327U CN201320376932U CN203312132U CN 203312132 U CN203312132 U CN 203312132U CN 2013203769327 U CN2013203769327 U CN 2013203769327U CN 201320376932 U CN201320376932 U CN 201320376932U CN 203312132 U CN203312132 U CN 203312132U
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China
Prior art keywords
fixed contact
passage
contact
fixed
static contact
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Active
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CN2013203769327U
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Chinese (zh)
Inventor
孟凡锐
翟连吉
吴磊
樊京生
张焕粉
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Beijing Qingchang Power Technology Co Ltd
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Beijing Qingchang Power Technology Co Ltd
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Priority to CN2013203769327U priority Critical patent/CN203312132U/en
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Abstract

A three-position solid insulation isolation switch comprises a housing which is made of insulation solid materials, a first static contact, a second static contact and a third static contact. The housing is provided with a first channel in which the upper end and the lower end are communicated; the first static contact is fixedly arranged on the inner wall which is close to the exit of one end of the first channel and is grounded. The second static contact is electrically connected with a main bus-bar. The main bus-bar is surrounded by the insulation solid materials and thus a main bus-bar interface portion is formed. The main bus-bar interface portion is fixedly sealed at the other exit of the first channel. The third static contact is fixed on the middle wall of the first channel. The housing is further provided with an outer connection exit which is electrically connected with the third static contact. The three-position solid insulation isolation switch further comprises a moving contact which can reciprocate in a line between a first position where the first static contact is contacted and a second position where the second static contact is contacted with the driving of a driving mechanism. The length of the moving contact enables the first static contact and the third static contact to be communicated when the moving contact is in the first position; and when the moving contact is in the second position, the second static contact and the third static contact are communicated. The moving contact further has a third position which is only contacted with the third static contact.

Description

Three station solid insulated isolating switches
Technical field
The utility model relates to a kind of isolating switch, and particularly a kind of three station solid insulated isolating switches, be used to the three kinds of functions of connection, disconnection, ground connection that realize circuit.
Background technology
The power switch used at present is encapsulated in the canister of sealing, makes the main circuit mutually insulated or insulate with ground by the SF6 gas insulating material of filling high insulating coefficient in container, and this makes canister volume matching used with it larger.
And SF6 is the extremely strong gases of a kind of greenhouse effect, in case the leakage meeting causes larger pollution to environment, to the power distribution network safe operation, be also great threat, need professional maintainer to carry out gas leak detection, need simultaneously special charger, manufacturing cost and operation expense are larger.With regard to power switch, sometimes be subjected to itself the restriction of installation site, install inconvenient.
Along with user's improving constantly the Power System Performance requirement, in medium voltage switchgear equipment, compact conformation, volume are little, the switchgear of high reliability and environmental protection arises at the historic moment, Here it is solid insulation cabinet, the solid insulation cabinet is to adopt the solid insulation technology, by the whole energized circuit wrapped with insulation of switch cubicle, overcome the shortcoming of above-mentioned gas insulating material switch.But this solid insulation cabinet at present most only have switch on and off or two stations of connection and ground connection, the safety operation performance also has room for promotion.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of three station solid insulated isolating switches, the insulation of solid insulation place of gas reduces the switch container volume, makes overall structure compacter, and do not pollute the environment, more safe and reliable, reduce manufacture, operation expense, three station structures also can further improve the safety operation performance of switch.
The utility model three station solid insulated isolating switches, comprise the shell of being made by the solid insulation material, the first fixed contact, the second fixed contact and the 3rd fixed contact, described shell has the first passage of up/down perforation, described the first fixed contact is fixed on the close inwall in an end exit of first passage and ground connection, described the second fixed contact is arranged in first passage near first passage other end exit and is electrically connected to main bus bar, described main bus bar is surrounded and is formed the main bus bar interface section by the solid insulation material, described main bus bar interface section sealing is in this end exit of first passage, described the 3rd fixed contact is fixed on the wall at first passage middle part, described shell also has the outer connection outlet be electrically connected to outside electric equipment, described outer connection outlet is electrically connected to the 3rd fixed contact, also comprise a moving contact, described first, three fixed contacts have respectively be suitable for that moving contact passes second, triple channel, described moving contact can be in the primary importance contacted with the first fixed contact under the drive of driving mechanism, with between the second place that the second fixed contact contacts, do straight reciprocating motion, the length of described moving contact meets when it is positioned at primary importance, be communicated with the first fixed contact and the 3rd fixed contact, when it is positioned at the second place, be communicated with the second fixed contact and the 3rd fixed contact, and described moving contact also has the 3rd position only contacted with the 3rd fixed contact.
The utility model three station solid insulated isolating switches, wherein said driving mechanism comprises the leading screw of being made by the solid insulation material and drives the driven unit that leading screw rotates, described leading screw passes second and third passage, one end of leading screw is supported on the second fixed contact, the other end connects driven unit, described moving contact center is provided with four-way, on described four-way inwall, is fixedly connected with screw and coordinates with leading screw.
The utility model three station solid insulated isolating switches, wherein said the first fixed contact connects grounding copper bar by contiguous block and is grounded, also comprise the plate of being made by the solid insulation material, sealing is in described first passage near the exit of the first fixed contact, and described plate is provided with and is suitable for the A hole that driven unit passes and is suitable for the B hole that contiguous block passes.
The utility model three station solid insulated isolating switches, wherein said moving contact is connected with indicator tube near the end of the first fixed contact, and described indicator tube is made by the solid insulation material, and the aperture in described A hole is slightly larger than the external diameter of described indicator tube.
The utility model three station solid insulated isolating switches, wherein also comprise limiting component, and described limiting component is fixed on grounding copper bar and stops indicator tube to be deviate from from first passage, on limiting component, also has and is suitable for the groove that driven unit passes.
The utility model three station solid insulated isolating switches, wherein said first passage on the inwall between the first, the 3rd fixed contact and on the inwall between second, third fixed contact, be provided with ripple area.
The utility model three station solid insulated isolating switches, wherein said solid insulation material is epoxy resin.
The utility model three station solid insulated isolating switch differences from prior art are that the utility model three station solid insulated isolating switches comprise and are arranged in first of solid insulation shell, two, three fixed contacts and moving contact, moving contact is being communicated with first under driving mechanism drives, the primary importance of three fixed contacts, be communicated with second, the second place of three fixed contacts and only with between the 3rd position that the 3rd fixed contact contacts do straight reciprocating motion, realize connecting, disconnect, three kinds of functions of ground connection, the utility model adopts solid insulating material, than gas-insulated, reduced the switch container volume, overall structure is compacter, and do not pollute the environment, more safe and reliable, reduced manufacture, operation expense, three station structures also can further improve the safety operation performance of switch.
Below in conjunction with accompanying drawing, three station solid insulated isolating switches of the present utility model are described further.
The accompanying drawing explanation
Fig. 1 is the outline drawing of the utility model three station solid insulated isolating switches;
Fig. 2 is the vertical view of the utility model three station solid insulated isolating switches;
Fig. 3 A be in Fig. 2 along the cutaway view of I-I direction, mean the ground state of isolating switch;
Fig. 3 B be in Fig. 2 along the cutaway view of I-I direction, mean the off-state of isolating switch:
Fig. 3 C be in Fig. 2 along the cutaway view of I-I direction, mean the on-state of isolating switch;
Fig. 4 is the explosive view after the utility model three station solid insulated isolating switches are cut open, wherein the 3rd fixed contact is listed in separately to the situation in succession that shows on one side itself and outer connection outlet.
Embodiment
As shown in Figure 1, 2, the switching device that is applied with three-phase alternating current comprises three three station solid insulated isolating switches that are arranged in parallel, and each three station solid insulated isolating switch is corresponding to the phase in three-phase alternating current.
As shown in Fig. 3 A, 3B, 3C, 4, three station solid insulated isolating switches comprise: by the shell 10 that the solid insulation material is made, it has the first passage 11 of up/down perforation and the outer connection outlet 12 that outside electric equipment is electrically connected to;
Be fixed in first passage 11 near on the inwall in an end exit and the first fixed contact 20, the first fixed contacts 20 of ground connection by contiguous block 80, connect grounding copper bars 90 and be grounded;
The second fixed contact 30 that is arranged in the close first passage other end exit of first passage 11 and is electrically connected to main bus bar, main bus bar is surrounded and is formed main bus bar interface section 50 by the solid insulation material, and main bus bar interface section 50 sealings are in this end exit of first passage 11;
The 3rd fixed contact 40, the three fixed contacts 40 that are fixed on the wall at first passage 11 middle parts are electrically connected to outer connection outlet 12;
Moving contact 60, first and third fixed contacts 20,40 have respectively and are suitable for second and third passage 21,41 that moving contact 60 passes;
Drive moving contact 60 in the primary importance contacted with the first fixed contact 20, with between the second place that the second fixed contact 20 contacts, make the driving mechanism of straight reciprocating motion, comprise the leading screw 70 of being made by the solid insulation material and drive the driven unit that leading screw rotates, leading screw 70 passes second, triple channel 21, 41, one end of leading screw 70 is supported on the second fixed contact 30, the other end connects driven unit, moving contact 60 centers are provided with four-way 61, on four-way 61 inwalls, being fixedly connected with screw 62 coordinates with leading screw 70, driven unit drives leading screw 70 and rotates, screw 62 drives moving contact 60 and does rectilinear motion along leading screw 70.
The length of moving contact 60 meets when it moves to primary importance, is communicated with the first fixed contact 20 and the 3rd fixed contact 40(state as shown in Figure 3A), the 3rd fixed contact connects grounding copper bar, realizes reliable ground; When it moves to the second place, be communicated with the second fixed contact 30 and the 3rd fixed contact 40(state as shown in Figure 3 C), make main bus bar and outer connection outlet realize being connected; Moving contact 60 also has the 3rd position (state as shown in Figure 3 B) only contacted with the 3rd fixed contact 40, when moving contact 60 moves to the 3rd fixed contact concordant the time fully, now outer connection outlet all is not connected with main bus bar, grounding copper bar, is in off-state.
Also comprise the plate 100 of being made by the solid insulation material, sealing is in the exit of first passage near the first fixed contact, with main bus bar interface section 50 jointly by all live part sealings in shell 10, plate 100 is provided with and is suitable for the A hole 101 that driven unit passes and is suitable for the B hole 102 that contiguous block passes.
Moving contact 60 is connected with indicator tube 63 near the end of the first fixed contact 20, indicator tube is made by the solid insulation material, 101De aperture, A hole is slightly larger than the external diameter of indicator tube 63, when moving contact 60 moves to primary importance, indicator tube 63 stretches out A hole 101, the circuit that tells is in ground state at present, but safety operation.
Also comprise limiting component 110, prevent from still continuing to rise after moving contact 60 from arriving primary importance, from first passage, deviate from, limiting component 110 is fixed on grounding copper bar 90, indicator tube 63 is played to range of movement spacing and then restriction moving contact 60, as can see from Figure 1, on limiting component 110, also have and be suitable for the groove 111 that driven unit passes, facilitate driven unit to connect leading screw 70.
Reaching and be provided with ripple area 13,14 on the inwall between second, third fixed contact 30,40 on the inwall between the first, the 3rd fixed contact 20,40 of first passage 11, increase the creepage distance between contact.
The solid insulation material can have a variety of, and as engineering plastics, condensate, epoxy resin or similar material, the present embodiment is used and is suitable for the epoxy resin of high-insulativity and mechanical strength, but is not limited in epoxy resin.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection range of the utility model claims.

Claims (7)

1. station solid insulated isolating switch, it is characterized in that: comprise the shell (10) of being made by the solid insulation material, the first fixed contact (20), the second fixed contact (30) and the 3rd fixed contact (40), described shell (10) has the first passage (11) of up/down perforation, described the first fixed contact (20) is fixed on the close inwall in an end exit of first passage (11) and ground connection, described the second fixed contact (30) is arranged in first passage (11) near first passage other end exit and is electrically connected to main bus bar, described main bus bar is surrounded and is formed main bus bar interface section (50) by the solid insulation material, described main bus bar interface section (50) sealing is in this end exit of first passage (11), described the 3rd fixed contact (40) is fixed on the wall at first passage (11) middle part, described shell (10) also has the outer connection outlet (12) be electrically connected to outside electric equipment, described outer connection outlet (12) is electrically connected to the 3rd fixed contact (40), also comprise a moving contact (60), described first, three fixed contacts (20, 40) have respectively be suitable for that moving contact (60) passes second, triple channel (21, 41), described moving contact (60) can be in the primary importance contacted with the first fixed contact (20) under the drive of driving mechanism, with between the second place that the second fixed contact (20) contacts, do straight reciprocating motion, the length of described moving contact (60) meets when it is positioned at primary importance, be communicated with the first fixed contact (20) and the 3rd fixed contact (40), when it is positioned at the second place, be communicated with the second fixed contact (30) and the 3rd fixed contact (40), and described moving contact (60) also has the 3rd position only contacted with the 3rd fixed contact (40).
2. three station solid insulated isolating switches according to claim 1, it is characterized in that: described driving mechanism comprises the leading screw (70) of being made by the solid insulation material and drives the driven unit that leading screw rotates, described leading screw (70) passes second and third passage (21,41), one end of leading screw (70) is supported on the second fixed contact (30), the other end connects driven unit, described moving contact (60) center is provided with four-way (61), on described four-way (61) inwall, is fixedly connected with screw (62) and coordinates with leading screw (70).
3. three station solid insulated isolating switches according to claim 2, it is characterized in that: described the first fixed contact (20) connects grounding copper bar (90) by contiguous block (80) and is grounded, also comprise the plate (100) of being made by the solid insulation material, sealing is in described first passage near the exit of the first fixed contact, and described plate (100) is provided with and is suitable for the A hole (101) that driven unit passes and is suitable for the B hole (102) that contiguous block passes.
4. three station solid insulated isolating switches according to claim 3, it is characterized in that: described moving contact (60) is connected with indicator tube (63) near the end of the first fixed contact (20), described indicator tube is made by the solid insulation material, and the aperture in described A hole (101) is slightly larger than the external diameter of described indicator tube (63).
5. three station solid insulated isolating switches according to claim 4, it is characterized in that: also comprise limiting component (110), described limiting component (110) is fixed on the upper indicator tube (63) that stops of grounding copper bar (90) to be deviate from from first passage (11), on limiting component (110), also has the groove (111) that is suitable for driven unit and passes.
6. three station solid insulated isolating switches according to claim 1 is characterized in that: described first passage (11) be positioned on the inwall between the first, the 3rd fixed contact (20,40) and the inwall be positioned between second, third fixed contact (30,40) is provided with ripple area (13,14).
7. according to the described three station solid insulated isolating switches of claim 1 to 6 any one, it is characterized in that: described solid insulation material is epoxy resin.
CN2013203769327U 2013-06-27 2013-06-27 Three-position solid insulation isolation switch Active CN203312132U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203769327U CN203312132U (en) 2013-06-27 2013-06-27 Three-position solid insulation isolation switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203769327U CN203312132U (en) 2013-06-27 2013-06-27 Three-position solid insulation isolation switch

Publications (1)

Publication Number Publication Date
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CN2013203769327U Active CN203312132U (en) 2013-06-27 2013-06-27 Three-position solid insulation isolation switch

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103915301A (en) * 2014-04-25 2014-07-09 协励行(厦门)电气有限公司 Novel solid insulation vacuum switch three-position isolation earthing switch device
CN103928274A (en) * 2014-04-25 2014-07-16 协励行(厦门)电气有限公司 Solid insulation vacuum switch three-position isolation earth switch module
CN104167323A (en) * 2014-08-03 2014-11-26 陈爱 Solid insulation fracture switch
CN105244223A (en) * 2015-10-09 2016-01-13 维龙(镇江)电工研究院有限公司 Three-station direct drive load switch single-phase module
CN105810495A (en) * 2016-04-27 2016-07-27 维龙(镇江)电工研究院有限公司 Direct-acting three-position load switch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103915301A (en) * 2014-04-25 2014-07-09 协励行(厦门)电气有限公司 Novel solid insulation vacuum switch three-position isolation earthing switch device
CN103928274A (en) * 2014-04-25 2014-07-16 协励行(厦门)电气有限公司 Solid insulation vacuum switch three-position isolation earth 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
CN104167323A (en) * 2014-08-03 2014-11-26 陈爱 Solid insulation fracture switch
CN105244223A (en) * 2015-10-09 2016-01-13 维龙(镇江)电工研究院有限公司 Three-station direct drive load switch single-phase module
CN105244223B (en) * 2015-10-09 2018-12-04 维龙(镇江)电工研究院有限公司 Three station direct acting type on-load switch single-phase modules
CN105810495A (en) * 2016-04-27 2016-07-27 维龙(镇江)电工研究院有限公司 Direct-acting three-position load switch

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C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Three-position solid insulation isolation switch

Effective date of registration: 20170607

Granted publication date: 20131127

Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee

Pledgor: Beijing Qingchang Power Technology Co., Ltd.

Registration number: 2017990000467

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20190225

Granted publication date: 20131127

Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee

Pledgor: Beijing Qingchang Power Technology Co., Ltd.

Registration number: 2017990000467