CN102201295A - Mother linear isolated grounding combined switches - Google Patents
Mother linear isolated grounding combined switches Download PDFInfo
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- CN102201295A CN102201295A CN 201010132389 CN201010132389A CN102201295A CN 102201295 A CN102201295 A CN 102201295A CN 201010132389 CN201010132389 CN 201010132389 CN 201010132389 A CN201010132389 A CN 201010132389A CN 102201295 A CN102201295 A CN 102201295A
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- conductor
- contact
- housing
- ground connection
- fixed contact
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Abstract
The invention discloses to a mother linear isolated grounding combined switch which comprises a shell body, a first conductor, a grounding contact, a second conductor and a moving contact. The shell body has two first openings set in the first direction and two second openings set in the second direction, and the first direction is vertical to the second direction. A first static contact is directly and concavely set on the first conductor. The grounding contact is connected with the shell body and arranged in the shell body. A connection seat is convexly set within the inner end of the second conductor is bent into a concave connection seat. The connection seat is provided with a second static contact, a moving channel is formed in the second static contact, is vertical to the first direction and is located between the first static contact and the grounding contact. The moving contact can be linearly connected in the moving channel in a movable way, and the moving contact moves linearly to contact the first static contact and the grounding contact selectively. In addition, the axis of the first static contact, the moving channel of the second static contact, the moving route of the moving contact and the axis of the grounding contact are coincident and paralleled to the second direction.
Description
Technical field
The present invention relates to a kind of bus type and isolate the ground connection unit switch.
Background technology
Existing bus type is isolated the ground connection unit switch, and mainly comprise two classes: the first kind such as Deutsche Bundespatent database are at disclosed DE19825386 on May 28th, 1998; Second class such as Chinese patent database are at disclosed ZL97115633.6 on February 18th, 1998.The denomination of invention of described ZL97115633.6 is " a kind of isolating/grounding switch that is used for the gas-insulated high-voltage switchgear assembly of metallic seal ", and it has:
1., one be connected with first inner wire first decide contact;
2., one be connected with second inner wire second decide contact;
3., dead earth contact;
4., a moving contact, decide can be linear mobile in the contact housing of contact forming described second for this moving contact;
5., described first and second decide that each contact all has a central shaft in contact and the described grounding contact, decide this central shaft of contact and grounding contact and the mobile route of described moving contact is in alignment with each other for two, so that the mobile route of described moving contact becomes a given angle (α) to extend with respect to described first inner wire with second inner wire, be connected on the grounding contact deciding contact with two on the primary importance with described moving contact, and be connected on the grounding contact deciding contact with second on the second place;
6., the T-shape shell that has vertical rod and transverse bar;
7., described first inner wire is located at inside the transverse bar of shell, as the bonding conductor of first flange to the second flange;
8., strutting piece is connected with described first inner wire and meet at right angles with it, match thereby make its free end and described first decide contact;
9., described second inner wire is located at inside the vertical rod of shell, and meets at right angles with described first inner wire;
10., described dead earth contact is installed in by another strutting piece on the inner surface of vertical rod of described shell.
Because the mobile route of moving contact becomes a given angle (α) to extend with respect to described first inner wire, therefore first decides contact and can not be set directly on first inner wire, must fix and conduct electricity by the strutting piece that vertically is fixed in first inner wire and connect first inner wire, so just have the following part that haves much room for improvement:
1, strutting piece is set, increases parts, increase cost;
2, strutting piece is set, increase takes up room, and makes whole switchgear take up room greatly;
3, first decides the free end that contact is arranged on strutting piece, and intensity is low.
Summary of the invention
The invention provides the bus type and isolate the ground connection unit switch, it has overcome the existing deficiency of isolating/grounding switch of the gas-insulated high-voltage switchgear assembly that is used for metallic seal in the background technology.
The technical scheme that is adopted that the present invention solves its technical problem is:
The bus type is isolated the ground connection unit switch, and it comprises:
Housing, it has along 2 first openings of first direction setting and 2 second openings that are provided with along second direction, described first direction is vertical with second direction to be provided with, and described 2 first openings all are connected with one first insulating disc, and described one second opening is connected with one second insulating disc;
First conductor, it is installed within the housing and connects 2 first insulating discs, directly is arranged with on described first conductor and is provided with first fixed contact;
Grounding contact, its attaching housing also is positioned within the housing;
Second conductor, it is installed within the housing and connects second insulating disc, end is folded to and is convexly equipped with into Connection Block within described second conductor, described Connection Block offers second fixed contact, form movable passageway within described second fixed contact, the vertical first direction of described movable passageway, described movable passageway is between first fixed contact and grounding contact; And
Moving contact, its energy linearity is connected within the movable passageway movably and moves between the primary importance and the second place, and second fixed contact and first fixed contact conduction is connected when primary importance, second fixed contact and grounding contact conduction connection when the second place;
Wherein: the movable passageway of the axis of described first fixed contact, second fixed contact, the mobile route of moving contact and the dead in line of grounding contact, and parallel second direction.
Among one preferred embodiment: being connected with one between one first opening of described housing and one first insulating disc can constitute and can be slidingly connected along first direction between described first conductor and described first insulating disc along the flexible body of first direction.
Among one preferred embodiment: described body is a bellows.
Among one preferred embodiment: described body is a retracting cylinder.
Among one preferred embodiment: described second conductor becomes L shaped.
Among one preferred embodiment: described first conductor has the two conductor main bodys of link and between two links that connect 2 first insulating discs respectively, described conductor main body has the inboard and an outside of corresponding described second conductor, described first fixed contact is arranged on conductor main body inboard, and described conductor external side of main body is provided with the 3rd contact.
Among one preferred embodiment: described first conductor has the two conductor main bodys of link and between two links that connect 2 first insulating discs respectively, described conductor main body has the inboard and an outside of corresponding described second conductor, the described outside is convexly equipped with the formation protuberance, and the position of the corresponding protuberance of described inboard is arranged with and forms the portion that is arranged with.
Among one preferred embodiment: described first conductor has the two conductor main bodys of link and between two links that connect 2 first insulating discs respectively, and described conductor main body becomes column.
Among one preferred embodiment: described first fixed contact is arranged on the bottom of conductor main body inboard.
Among one preferred embodiment: the periphery of the position of correspondence first fixed contact of described conductor main body is protruded and is formed enhancing portion.
Among one preferred embodiment: another of described housing second opening part is provided with end cap.
Among one preferred embodiment: another of described housing second opening part is provided with one the 3rd insulating disc, also is provided with one the 3rd conductor in addition and connects described the 3rd insulating disc and conduction connection the 3rd contact.
Among one preferred embodiment: offer a through hole on the described housing; Described grounding contact is fixed in the insulation holder, described grounding contact outside housing by through hole from outside put within the housing toward in, described insulation holder is fixed in housing; Other is provided with the electric-conductor conduction and connects grounding contact and housing.
The technical program is compared with background technology, because axis, the movable passageway of second fixed contact, the mobile route of moving contact and the dead in line of grounding contact of first fixed contact, parallel second direction, vertical first direction, therefore it has overcome the existing deficiency of background technology, and has following advantage: 1. save the strutting piece in the background technology, reduce cost, reduce whole taking up room; 2. first conductor and second conductor are arranged vertically substantially, and Electric Field Distribution is reasonable, and through-flow loop is the shortest, the conductor resistance thermal losses when reducing the switch operation; 3. do not have incline structure between dynamic and static contact, assembling, measurement are simply, conveniently; 4. between each machine work face of parts, be parallel to each other substantially or vertically, part processing is simple, convenient; 5. first fixed contact is set directly at first conductor, and the support strength height cooperates the intensity height.
Because housing has 2 first openings and 2 second openings, become ten shape structures, so applicable situation is many, be convenient to assembling.
Because end is folded to and is convexly equipped with into Connection Block within second conductor, second fixed contact is arranged on Connection Block, so the bonding strength height, and Electric Field Distribution is good, and topology layout is good.
Owing to be connected with the flexible body between the housing and first insulating disc, constitute between first conductor and first insulating disc and can be slidingly connected along first direction, therefore the first insulating disc flexible connects housing, solves the change in size that product is installed and variations in temperature in service causes, is convenient to attaching.
Because the conductor main body of first conductor outside is convexly equipped with the formation protuberance, the position of inboard corresponding protuberance is arranged with to form and is arranged with portion, so Electric Field Distribution is reasonable, and intensity is good.
Form enhancing portion because protrude the position of correspondence first fixed contact of conductor main body periphery, therefore strengthen intensity, strengthen through-current capability.
Because the protuberance of conductor main body can be provided with the 3rd contact, therefore be convenient to form various combination forms.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the grown form schematic diagram of the switchgear of a preferred embodiment of the present invention.
Fig. 2 is the schematic diagram of band adsorbent end cap of the switchgear of a preferred embodiment of the present invention.
Fig. 3 is the schematic diagram of expansion the 3rd conductor of the switchgear of a preferred embodiment of the present invention.
Fig. 4 is the top cross-sectional view of the switchgear of a preferred embodiment of the present invention.
Fig. 5 looks schematic diagram for the left side of the switchgear of a preferred embodiment of the present invention.
Fig. 6 is the schematic diagram of the band adsorbent end cap of the switchgear of the present invention's second preferred embodiment.
Fig. 7 is the schematic diagram of expansion the 3rd conductor of the switchgear of the present invention's second preferred embodiment.
Fig. 8 is the schematic diagram of the band adsorbent end cap of the switchgear of the present invention's the 3rd preferred embodiment.
Embodiment
Please refer to Fig. 1, the bus type is isolated the ground connection unit switch, and it comprises housing 100, first conductor 200, second conductor 300, grounding contact 400, moving contact 500 and driving mechanism 600.
Described housing 100 has 2 first openings 130 that are provided with along first direction 110 and 2 second openings 140 that are provided with along second direction 120, described first direction 110 and second direction 120 vertical settings.Described 2 first openings 130 all are connected with one first insulating disc 150, and, one first opening 130 and a pair of be provided with one between should first insulating disc 150 (for example first insulating disc 150 of first opening 130 of the upside among the figure and upside) of first opening 130 can be along the flexible body 160 of first direction 110, described body 160 for example is a bellows.Described one second opening 140 is connected with one second insulating disc 170; Another second opening 140 can be selected as required: as Fig. 2, can add adsorbent end cap 180, adopt adsorbent end cap 180 can absorb the moisture of the enclosure space in the housing, can increase switch long-time running reliability; Perhaps, as Fig. 3, can add the 3rd insulating disc 190.Also be provided with an inside and outside through hole on the described housing 100.
Described first conductor 200 has the two conductor main bodys 220 of link 210 and between two links 210 that connect 2 first insulating discs 150 respectively.Described two links 210 can conduct electricity respectively and pass 2 first insulating discs 150 to be connected with external conduction.Constitute the relation of being slidingly connected between a described link 210 and first insulating disc 150, that is to say to constitute the relation of being slidingly connected between described first conductor 200 and first insulating disc 150, make described first insulating disc 150 cooperate body 160 to stretch along first direction 110.Described conductor main body 220 has the inboard and an outside of corresponding described second conductor; The described outside is convexly equipped with and forms protuberance 221, rounding off between the side of described protuberance 221 and the outside; The position of the corresponding protuberance 221 of described inboard is arranged with and forms the portion 222 that is arranged with, described be arranged with portion 222 be designed to the center of circle after deep-slotted chip breaker.The bottom of described conductor main body 220 inboards directly is arranged with and forms one first shrinkage pool 223, and described first shrinkage pool 223 directly is processed into first fixed contact 230, for example within first shrinkage pool 223 fingertip is set directly.The position of correspondence first fixed contact 230 of described conductor main body 220 peripheries is protruded and is formed enhancing portion 250, and best, it is equal substantially that the cross-sectional area behind the described protrusion and first shrinkage pool 223 face the cross-sectional area that connects.The protuberance 221 of described conductor main body 220 is arranged with and becomes to have one second shrinkage pool, directly is processed into the 3rd contact 240 within described second shrinkage pool.
Described second conductor 300 is installed within the housing 100 and connects second insulating disc 170, and can conduct electricity and pass second insulating disc 170 to be connected with external conduction.End is folded to and is convexly equipped with into Connection Block 310 within described second conductor 300, thereby makes that 300 one-tenth of described second conductors are L shaped.Described Connection Block 310 offers one second fixed contact 320, forms movable passageway within described second fixed contact 320, and the vertical first direction 110 of described movable passageway is provided with fingertip within the described movable passageway.
Described grounding contact 400 is installed on the insulation holder 410, described grounding contact 400 outside housing 100 by through hole from outside toward interpolation near within the housing 100, described holder 410 is fixed on housing 100 simultaneously, and then described holder 410 can contact with grounding contact 400 direct conductions by insulation shell 100.Other is equipped with ground connection electric-conductor 420 conductions and connects grounding contact 400 and housing 100 outer surfaces.So, when detecting, needs only need ground connection electric-conductor 420 is untied, and the conduction connection that disconnects between grounding contact 400 and the housing 100 can begin to detect, and has avoided in the background technology, need dismantle the deficiency that just can detect down to whole grounding contact.
Described moving contact 500 can linear be connected within the movable passageway of second fixed contact 320 movably, linearity by moving contact 500 moves and in primary importance, move between the centre position and the second place, to realize three stations, described centre position is between the primary importance and the second place: when moving contact 500 is positioned at primary importance, described second fixed contact connects first fixed contact 230 by moving contact 500 conductions, that is to say that second conductor, 300 conductions connect first fixed contact 230, when moving contact 500 is positioned at the second place, described second fixed contact connects grounding contact 400 by moving contact 500 conductions, that is to say that second conductor, 300 conductions connect grounding contact 400, the second conductors 300 ground connection; When moving contact 500 was positioned at the centre position, the described moving contact and first fixed contact, grounding contact all were in off-state, between second fixed contact and first fixed contact, all be in off-state between second fixed contact and the grounding contact, were in isolation.And described moving contact 500 can not contact first fixed contact 230 and grounding contact 400 simultaneously.
Among the present embodiment, described second fixed contact 320 is between first fixed contact 230 and grounding contact 400.The dead in line of the mobile route of the movable passageway of the axis of described first fixed contact 230, second fixed contact 320, moving contact 500 and grounding contact 400, vertical first direction 110, parallel second direction 120.
As required, please refer to Fig. 3, can comprise that also one the 3rd conductor 700 cooperates the 3rd insulating disc, the 3rd conductor 700 connects described the 3rd insulating disc 190 and conduction connects the 3rd contact 240.When main bus bar needs ground connection, can directly pass through the 3rd conductor 700, at the ground connection that insulating disc 190 external earthed switches are realized main bus bar, the pattern length when using to reduce product.
Described driving mechanism 600 is used to drive moving contact 500 and does linear moving, and wherein, described driving mechanism 600 can adopt pinion and rack etc.
Please refer to Fig. 4 and Fig. 5, among the present embodiment, described unit switch is an altogether tube switch of three-phase, with the layout of present embodiment be applied to three-phase altogether a tube switch can reduce and take up room, cut down finished cost.Certain the present invention is not total to tube with three-phase exceeds, and the phase-splitting product also can be suitable for the layout of present embodiment.
Please refer to Fig. 6 and Fig. 7, they have illustrated the schematic diagram of second preferred embodiment respectively, it and a last preferred embodiment difference are: the conductor main body 220 of described first conductor 200 is column, they are not provided with the protuberance 221 of a preferred embodiment and are arranged with portion 222, the second shrinkage pool straight forming of described the 3rd contact is arranged on the outer middle side part of conductor main body 220, the first shrinkage pool straight forming of described first fixed contact is arranged on the lower inside of conductor main body 220, and peripheral protrusion the in the position of correspondence first fixed contact of described conductor main body 220 forms enhancing portion.
Please refer to Fig. 8, they have illustrated the schematic diagram of the 3rd preferred embodiment, it and a last preferred embodiment difference are: described driving mechanism 600 can adopt shifting fork mechanism, it comprises that action bars 620 and that an alignment pin 610, that is installed in moving contact is rotatably connected on the housing and second conductor is installed in the shift fork 630 of action bars 620, described alignment pin is positioned within the shift fork 630, drive shift fork by action bars and rotate, rotate drive alignment pin 610 by shift fork and move, drive moving contact and move.Adopt this structure to cut down finished cost, guarantee operational stability.
The 4th preferred embodiment, it and a last preferred embodiment difference are: be not provided with the 3rd contact on described first conductor.
The above, only for preferred embodiment of the present invention, so can not limit scope of the invention process according to this, i.e. the equivalence of doing according to claim of the present invention and description changes and modification, all should still belong in the scope that the present invention contains.
Claims (13)
1. the bus type is isolated the ground connection unit switch, and it is characterized in that: it comprises:
Housing, it has along 2 first openings of first direction setting and 2 second openings that are provided with along second direction, described first direction is vertical with second direction to be provided with, and described 2 first openings all are connected with one first insulating disc, and described one second opening is connected with one second insulating disc;
First conductor, it is installed within the housing and connects 2 first insulating discs, directly is arranged with on described first conductor and is provided with first fixed contact;
Grounding contact, its attaching housing also is positioned within the housing;
Second conductor, it is installed within the housing and connects second insulating disc, end is folded to and is convexly equipped with into Connection Block within described second conductor, described Connection Block offers second fixed contact, form movable passageway within described second fixed contact, the vertical first direction of described movable passageway, described movable passageway is between first fixed contact and grounding contact; And
Moving contact, its energy linearity is connected within the movable passageway movably and moves between the primary importance and the second place, and second fixed contact and first fixed contact conduction is connected when primary importance, second fixed contact and grounding contact conduction connection when the second place;
Wherein: the movable passageway of the axis of described first fixed contact, second fixed contact, the mobile route of moving contact and the dead in line of grounding contact, and parallel second direction.
2. bus type according to claim 1 is isolated the ground connection unit switch, it is characterized in that: being connected with one between one first opening of described housing and one first insulating disc can constitute and can be slidingly connected along first direction between described first conductor and described first insulating disc along the flexible body of first direction.
3. bus type according to claim 2 is isolated the ground connection unit switch, and it is characterized in that: described body is a bellows.
4. bus type according to claim 2 is isolated the ground connection unit switch, and it is characterized in that: described body is a retracting cylinder.
5. isolate the ground connection unit switch according to claim 1 or 2 or 3 or 4 described bus types, it is characterized in that: described second conductor becomes L shaped.
6. isolate the ground connection unit switch according to claim 1 or 2 or 3 or 4 described bus types, it is characterized in that: described first conductor has the two conductor main bodys of link and between two links that connect 2 first insulating discs respectively, described conductor main body has the inboard and an outside of corresponding described second conductor, described first fixed contact is arranged on conductor main body inboard, and described conductor external side of main body is provided with the 3rd contact.
7. isolate the ground connection unit switch according to claim 1 or 2 or 3 described bus types, it is characterized in that: described first conductor has the two conductor main bodys of link and between two links that connect 2 first insulating discs respectively, described conductor main body has the inboard and an outside of corresponding described second conductor, the described outside is convexly equipped with the formation protuberance, and the position of the corresponding protuberance of described inboard is arranged with and forms the portion that is arranged with.
8. isolate the ground connection unit switches according to claim 1 or 2 or 3 described bus types, it is characterized in that: described first conductor has the two conductor main bodys of link and between two links that connect 2 first insulating discs respectively, and described conductor main body becomes column.
9. bus type according to claim 6 is isolated the ground connection unit switch, and it is characterized in that: described first fixed contact is arranged on the bottom of conductor main body inboard.
10. bus type according to claim 9 is isolated the ground connection unit switch, it is characterized in that: the periphery of the position of correspondence first fixed contact of described conductor main body is protruded and is formed enhancing portion.
11. bus type according to claim 6 is isolated the ground connection unit switch, it is characterized in that: another of described housing second opening part is provided with end cap.
12. bus type according to claim 6 is isolated the ground connection unit switch, it is characterized in that: another of described housing second opening part is provided with one the 3rd insulating disc, also is provided with one the 3rd conductor in addition and connects described the 3rd insulating disc and conduction connection the 3rd contact.
13. isolate the ground connection unit switch according to claim 1 or 2 or 3 or 4 described bus types, it is characterized in that: offer a through hole on the described housing; Described grounding contact is fixed in the insulation holder, described grounding contact outside housing by through hole from outside put within the housing toward in, described insulation holder is fixed in housing; Other is provided with the electric-conductor conduction and connects grounding contact and housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010132389 CN102201295A (en) | 2010-03-25 | 2010-03-25 | Mother linear isolated grounding combined switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010132389 CN102201295A (en) | 2010-03-25 | 2010-03-25 | Mother linear isolated grounding combined switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102201295A true CN102201295A (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010132389 Pending CN102201295A (en) | 2010-03-25 | 2010-03-25 | Mother linear isolated grounding combined switches |
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| Country | Link |
|---|---|
| CN (1) | CN102201295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956396A (en) * | 2012-06-27 | 2013-03-06 | 厦门华电开关有限公司 | Compact type grounding isolating three-station switch |
-
2010
- 2010-03-25 CN CN 201010132389 patent/CN102201295A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956396A (en) * | 2012-06-27 | 2013-03-06 | 厦门华电开关有限公司 | Compact type grounding isolating three-station switch |
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Application publication date: 20110928 |