CN202534943U - Mining explosion-isolation intrinsically-safe permanent-magnet high-voltage vacuum power distribution device - Google Patents
Mining explosion-isolation intrinsically-safe permanent-magnet high-voltage vacuum power distribution device Download PDFInfo
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- CN202534943U CN202534943U CN2012202232654U CN201220223265U CN202534943U CN 202534943 U CN202534943 U CN 202534943U CN 2012202232654 U CN2012202232654 U CN 2012202232654U CN 201220223265 U CN201220223265 U CN 201220223265U CN 202534943 U CN202534943 U CN 202534943U
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Abstract
The utility model discloses a mining explosion-isolation intrinsically-safe permanent-magnet high-voltage vacuum power distribution device, which comprises an explosion-isolation box body, a vacuum circuit breaker, a support and a box door, wherein the explosion-isolation box body is provided with a wiring chamber and a power distribution chamber; the wiring chamber and the power distributing chamber are separated through a clapboard; the clapboard is provided with an electroconductive rod, and one end of the electroconductive rod is provided with a power connecting assembly; the power connecting assembly comprises a socket and a cross contact; the outer wall of the socket is provided with an annular groove; the cross contact comprises an annular support, contact sheets and an annular spring; the plurality of contact sheets are assembled on the annular support to form an annular body, two ends of an annular wall in the annular body are convexly provided with electroconductive lug bosses towards inside, and the annular spring is arranged on the outer annular wall of the annular body; and one electroconductive lug boss is located in the annular groove and is in clearance fit with the annular groove, and the front end of a contact arm of the vacuum circuit breaker can enter the inside of the annular body to be electrically connected with the other electrocondcutive lug boss. According to the utility model, the contact arm and the electroconductive rod are electrically connected reliably, so that the problems of assembly difficulty, improper coordination and the like caused by machining errors are prevented effectively.
Description
Technical field
The utility model belongs to high-voltage vacuum distribution equipment structure-design technique field, is specifically related to a kind of mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment.
Background technology
Mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment is applicable under the coal mine with explosion risk gas and dust; Rated voltage 6-10KV, rated frequency 50Hz, the not directly grounded electric power system of rated current to the three-phase alternating current neutral point of 1250A are controlled, protected and measure, and can be used as the usefulness of direct startup high-voltage motor.The break-make electricity of mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment be through being arranged on the vacuum circuit-breaker in the flameproof cabinet contact arm be arranged on flameproof cabinet in dividing plate on contact rod be connected realization.Yet in the existing vacuum distribution equipment contact arm of vacuum circuit-breaker and the junction of contact rod tend to since mismachining tolerance to cause both to cooperate not in place; Cause that contact area reduces, contact resistance increases, during through big electric current, heating is big; Cause contact arm, contact rod, reach burning of adjacent component.
Summary of the invention
To the above-mentioned deficiency that exists in the prior art; The purpose of the utility model provides a kind of mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment; The contact arm of the vacuum circuit-breaker of this vacuum distribution equipment and the contact area of contact rod is big, contact resistance is little, and efficiently solve owing to the assembling difficulty that mismachining tolerance causes, cooperate problems such as not in place.
The technical scheme that realizes the utility model purpose is:
A kind of mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment comprises the flameproof cabinet that is provided with wiring chamber and switchgear house, is arranged on vacuum circuit-breaker in the switchgear house, is arranged on the bearing and the chamber door of flameproof cabinet bottom; Said wiring chamber and switchgear house separate through dividing plate; Said dividing plate is provided with contact rod, and an end of said contact rod is arranged in the wiring chamber, and the other end is arranged in switchgear house; Said contact rod is provided with away from an end of wiring chamber and connects electric assembly;
Saidly connect electric assembly and comprise the socket that is fixedly connected with contact rod and be arranged on the Mume flower contact of socket away from contact rod one end; On the outer wall of said socket, be provided with annular groove away from contact rod one end;
Said Mume flower contact comprises ring support, contact and ring spring; Several contacts are assemblied in looping body on the said ring support, convex with conducting boss in the inward at both ends of annular solid internal ring wall, and said ring spring is arranged on the said annular solid external annulus;
Near the said conducting boss of said socket be arranged on the said socket annular groove and with said annular groove matched in clearance; It is inner and form reliable the electrical connection with conducting boss away from said socket that the front end of the contact arm of said vacuum circuit-breaker can get into said annular solid.
In the technique scheme, be provided with the insulation cover for seat in the outside of said contact rod, said insulation cover for seat and said contact rod are pressed to annotate and are one, and the end center of cover for seat near vacuum circuit-breaker forms containing cavity insulating; Saidly connect electric assembly and be arranged in containing cavity; Exit at said containing cavity is provided with stopper, and the center of said stopper is provided with the through hole of the contact arm turnover that supplies said vacuum circuit-breaker.
In the technique scheme, said stopper is fixedly connected with the insulation cover for seat through plastic bolt.
In the technique scheme, said socket is fixedly connected through fastening bolt with said contact rod;
The center of said socket is provided with shoulder hole; Said contact rod and shoulder hole correspondence position are provided with screw; The head of said fastening bolt is arranged in the macropore of shoulder hole, and the aperture that the double-screw bolt of said fastening bolt passes shoulder hole is threaded with the screw of said contact rod.
In the technique scheme, the quantity of said ring spring is 4, and per two is one group, and two groups of ring springs are contained in respectively on the said annular solid external annulus and are corresponding with each conducting boss;
Each said ring spring is to be connected to form through the two ends with a spiral yarn shaped extension spring.
In the technique scheme, said annular solid is provided with chamfering or fillet near the outer edge of the internal ring wall of said vacuum circuit-breaker one end.
In the technique scheme, said ring support comprises two ring segments and the bearing pin that connects two ring segments; Correspondence position on each ring segment outer peripheral wall is evenly equipped with groove; Each said contact is arranged in the corresponding groove.
In the technique scheme, said vacuum circuit-breaker is a handcart type vacuum circuit breaker.
In the technique scheme, said flameproof cabinet each side be provided with a cable ejector.
The utlity model has positive effect:
(1) power distribution equipment connects electric assembly through being provided with away from an end of wiring chamber at contact rod in the utility model; Saidly connect electric assembly and comprise the socket that is fixedly connected with contact rod and be arranged on the Mume flower contact of socket away from contact rod one end; On the outer wall of said socket, be provided with annular groove away from contact rod one end; Said Mume flower contact comprises ring support, contact and ring spring; Several contacts are assemblied in looping body on the said ring support, convex with conducting boss in the inward at both ends of annular solid internal ring wall, and said ring spring is arranged on the said annular solid external annulus; Owing to adopt said structure, increased contact arm and the contact rod contact area of vacuum circuit-breaker, contact resistance reduces, simultaneously owing to the said conducting boss near said socket be arranged on the said socket annular groove and with said annular groove matched in clearance; It is the activity space that annular solid can circumferentially rotate relative to the contact rod tool; The inside of the contact arm entering annular solid of vacuum circuit-breaker is more convenient; Efficiently solve because the contact arm that mismachining tolerance causes is electrically connected difficulty, cooperates problems such as not in place with contact rod, have good result of use.
(2) in the utility model, said flameproof cabinet 1 each side be provided with a cable ejector, promptly adopt the double loop outlet, carry out the double loop electric leakage and protect with insulation monitoring, can satisfy many burden requirements, widened the range of application of product.
Description of drawings
Fig. 1 is a kind of forward view of the utility model;
Fig. 2 is that Fig. 1 is along A-A line side cross sectional view;
Fig. 3 is the partial enlarged view at B place among Fig. 2;
Fig. 4 is a kind of perspective view of Mume flower contact in the utility model;
Fig. 5 is the perspective view of Fig. 4 during from another viewed;
Fig. 6 is a kind of forward view of Fig. 4;
Fig. 7 is a kind of structural representation of contact in the utility model;
Fig. 8 is a kind of perspective view of ring support in the utility model;
Fig. 9 is a kind of forward view of Fig. 7;
Reference numeral shown in the figure is: the 1-flameproof cabinet; 11-wiring chamber; The 12-switchgear house; The 13-dividing plate; 14-cable ejector; The 2-vacuum circuit-breaker; The 21-contact arm; The 3-bearing; The 4-contact rod; The 41-screw; 5-connects electric assembly; The 51-socket; The 511-annular groove; The 512-shoulder hole; The 52-Mume flower contact; The 53-ring support; The 531-ring segment; The 532-bearing pin; The 533-groove; The 54-contact; The 55-ring spring; The 56-annular solid; The 57-conducting boss; The 6-cover for seat that insulate; The 61-containing cavity; The 7-stopper; The 8-plastic bolt; The 9-fastening bolt.
Embodiment
Fig. 1 to Fig. 8 has shown a kind of embodiment of the utility model.Wherein, Fig. 1 is a kind of forward view of the utility model; Fig. 2 is that Fig. 1 is along A-A line side cross sectional view; Fig. 3 is the partial enlarged view at B place among Fig. 2; Fig. 4 is a kind of perspective view of Mume flower contact in the utility model; Fig. 5 is the perspective view of Fig. 4 during from another viewed; Fig. 6 is a kind of forward view of Fig. 4; Fig. 7 is a kind of structural representation of contact in the utility model; Fig. 8 is a kind of perspective view of ring support in the utility model; Fig. 9 is a kind of forward view of Fig. 7.
A kind of mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment; As depicted in figs. 1 and 2, comprise the flameproof cabinet 1 that is provided with wiring chamber 11 and switchgear house 12, be arranged on vacuum circuit-breaker 2 in the switchgear house 12, be arranged on the bearing 3 and the chamber door of flameproof cabinet 1 bottom; Said wiring chamber 11 separates through dividing plate 13 with switchgear house 12; Said dividing plate 13 is provided with contact rod 4, and an end of said contact rod 4 is arranged in wiring chamber 11, and the other end is arranged in switchgear house 12; Referring to Fig. 3, said contact rod 4 is provided with away from an end of wiring chamber 11 and connects electric assembly 5; Saidly connect electric assembly 5 and comprise the socket that is fixedly connected with contact rod 4 51 and be arranged on the Mume flower contact 52 of socket 51 away from contact rod 4 one ends; On the outer wall of said socket 51, be provided with annular groove 511 away from contact rod 4 one ends; As shown in Figs. 4-6, said Mume flower contact 52 comprises ring support 53, contact 54 and ring spring 55; Several contacts 54 are assemblied in looping body 56 on the said ring support 53; Inward at both ends at annular solid 56 internal ring walls convexes with conducting boss 57; The external annulus of said annular solid 56 is provided with annular groove, and said ring spring 55 is arranged in the annular groove of said annular solid 56 external annulus; The said conducting boss 57 of said socket 51 be arranged on the said socket 51 annular groove 511 and with said annular groove 511 matched in clearance; It also is the activity space that annular solid 56 can circumferentially rotate relative to contact rod 4 tools; The inside of the contact arm 21 entering annular solids 56 of vacuum circuit-breaker 2 is more convenient, efficiently solves because the contact arm 21 that mismachining tolerance causes is electrically connected difficulty, cooperates problems such as not in place with contact rod 4; Vacuum distribution equipment is when connecing electricity; Push ahead vacuum circuit-breaker 2; It is inner and form with conducting boss 57 away from said socket 51 and to be electrically connected that the front end of the contact arm 21 of said vacuum circuit-breaker 2 gets into said annular solid 56; Because be arranged on ring spring 55 effects on annular solid 56 external annulus, each contact is connected more reliable with the contact arm 21 of vacuum circuit-breaker 2.When practical operation, the somewhat larger in diameter of the contact arm 21 of said vacuum circuit-breaker 2 is in the internal diameter away from the conducting boss 57 of socket 51, thereby guarantees the reliability that is electrically connected.
In the present embodiment, said ring support 53 comprises two ring segments 531 and the bearing pin 532 that connects two ring segments 531; Correspondence position on each ring segment 532 outer peripheral wall is evenly equipped with groove 533; Each said contact 54 is arranged on the assembling that can accomplish each contact 54 in the corresponding groove 533, like Fig. 8 and shown in Figure 9.
Be provided with the cover for seat 6 that insulate in the outside of said contact rod 4, said insulation cover for seat 6 is pressed to annotate with said contact rod 4 and is one, and the end center of cover for seat 6 near vacuum circuit-breaker 2 forms containing cavity 61 insulating; Saidly connect electric assembly 5 and be arranged in containing cavity 61; Be provided with stopper 7 in the exit of said containing cavity 61, the center of said stopper 7 is provided with the through hole of contact arm 21 turnover that supply said vacuum circuit-breaker 2.Thereby insulation cover for seat 6 is being fixed on contact rod 4 on the dividing plate 13 on the dividing plate 13 through annular pressing plate and the screw that is set on its periphery wall; Said stopper 7 is fixedly connected with insulation cover for seat 6 through plastic bolt 8.
Said socket 51 is fixedly connected through fastening bolt 9 with said contact rod 4; The center of said socket 51 is provided with shoulder hole 512; Said contact rod 4 is provided with screw 41 with shoulder hole 512 correspondence positions; The head of said fastening bolt 9 is arranged in the macropore of shoulder hole 512, and the aperture that the double-screw bolt of said fastening bolt 9 passes shoulder hole 512 is threaded with the screw 41 of said contact rod 4.
In the present embodiment, the quantity of said ring spring 55 is 4, and per two is one group, and two groups of ring springs 55 are contained in respectively on said annular solid 56 external annulus and are corresponding with each conducting boss 57; To be electrically connected reliably between the contact arm 21 that guarantees each contact 54 and vacuum circuit-breaker 2.Each said ring spring 55 is to be connected to form through the two ends with a spiral yarn shaped extension spring.
Said annular solid 56 is provided with chamfering or fillet near the outer edge of the internal ring wall of said vacuum circuit-breaker 2 one ends, so that the contact arm 21 of vacuum circuit-breaker 2 can get into annular solid 56 inside that are made up of contact 54 more smoothly.
In the present embodiment, said vacuum circuit-breaker 2 is a handcart type vacuum circuit breaker.
Said flameproof cabinet 1 each side be provided with a cable ejector 14, promptly adopt the double loop outlet, carry out the double loop electric leakage and protect with insulation monitoring, can satisfy many burden requirements, widened the range of application of vacuum distribution equipment.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the execution mode of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation that these connotations that belong to the utility model are extended out or change still belong to the protection range of the utility model.
Claims (9)
1. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment comprises the flameproof cabinet (1) that is provided with wiring chamber (11) and switchgear house (12), is arranged on vacuum circuit-breaker (2) in the switchgear house (12), is arranged on the bearing (3) and the chamber door of flameproof cabinet (1) bottom; Said wiring chamber (11) separates through dividing plate (13) with switchgear house (12); Said dividing plate (13) is provided with contact rod (4), and an end of said contact rod (4) is arranged in wiring chamber (11), and the other end is arranged in switchgear house (12); It is characterized in that: said contact rod (4) is provided with away from the end of wiring chamber (11) and connects electric assembly (5);
The said electric assembly (5) that connects comprises the socket (51) that is fixedly connected with contact rod (4) and is arranged on the Mume flower contact (52) of socket (51) away from contact rod (4) one ends; On the outer wall of said socket (51), be provided with annular groove (511) away from contact rod (4) one ends;
Said Mume flower contact (52) comprises ring support (53), contact (54) and ring spring (55); Several contacts (54) are assemblied in said ring support (53) and go up looping body (56); Inward at both ends at annular solid (56) internal ring wall convexes with conducting boss (57), and said ring spring (55) is arranged on said annular solid (56) external annulus;
Near the said conducting boss (57) of said socket (51) be arranged on the said socket (51) annular groove (511) and with said annular groove (511) matched in clearance; It is inner and form with conducting boss (57) away from said socket (51) and reliably to be electrically connected that the front end of the contact arm (21) of said vacuum circuit-breaker (2) can get into said annular solid (56).
2. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment according to claim 1; It is characterized in that: be provided with insulation cover for seat (6) in the outside of said contact rod (4); Said insulation cover for seat (6) is pressed to annotate with said contact rod (4) and is one, and the end center of cover for seat (6) near vacuum circuit-breaker (2) forms containing cavity (61) insulating; The said electric assembly (5) that connects is arranged in containing cavity (61); Be provided with stopper (7) in the exit of said containing cavity (61), the center of said stopper (7) is provided with the through hole of contact arm (21) turnover that supplies said vacuum circuit-breaker (2).
3. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment according to claim 2 is characterized in that: said stopper (7) is fixedly connected with insulation cover for seat (6) through plastic bolt (8).
4. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment according to claim 3 is characterized in that: said socket (51) is fixedly connected through fastening bolt (9) with said contact rod (4);
The center of said socket (51) is provided with shoulder hole (512); Said contact rod (4) is provided with screw (41) with shoulder hole (512) correspondence position; The head of said fastening bolt (9) is arranged in the macropore of shoulder hole (512), and the aperture that the double-screw bolt of said fastening bolt (9) passes shoulder hole (512) is threaded with the screw (41) of said contact rod (4).
5. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment according to claim 4; It is characterized in that: the quantity of said ring spring (55) is 4; Per two is one group, and two groups of ring springs (55) are contained in respectively on said annular solid (56) external annulus and are corresponding with each conducting boss (57);
Each said ring spring (55) is to be connected to form through the two ends with a spiral yarn shaped extension spring.
6. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment according to claim 5 is characterized in that: said annular solid (56) is provided with chamfering or fillet near the outer edge of the internal ring wall of said vacuum circuit-breaker (2) one ends.
7. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment according to claim 1 is characterized in that: the bearing pin (532) that said ring support (53) comprises two ring segments (531) and connects two ring segments (531); Correspondence position on each ring segment (532) outer peripheral wall is evenly equipped with groove (533); Each said contact (54) is arranged in the corresponding groove (533).
8. according to any described mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment in the claim 1 to 7, it is characterized in that: said vacuum circuit-breaker (2) is a handcart type vacuum circuit breaker.
9. mine flameproof and intrinsic safety type permanent-magnetic high-voltage vacuum power distribution equipment according to claim 1 is characterized in that: said flameproof cabinet (1) each side be provided with a cable ejector (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202232654U CN202534943U (en) | 2012-05-16 | 2012-05-16 | Mining explosion-isolation intrinsically-safe permanent-magnet high-voltage vacuum power distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202232654U CN202534943U (en) | 2012-05-16 | 2012-05-16 | Mining explosion-isolation intrinsically-safe permanent-magnet high-voltage vacuum power distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534943U true CN202534943U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202232654U Expired - Fee Related CN202534943U (en) | 2012-05-16 | 2012-05-16 | Mining explosion-isolation intrinsically-safe permanent-magnet high-voltage vacuum power distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904576A (en) * | 2013-08-23 | 2014-07-02 | 华荣科技股份有限公司 | Trailer entering mechanism and vacuum power distribution device comprising same |
| CN103915300A (en) * | 2014-04-04 | 2014-07-09 | 宁波奇乐电气集团有限公司 | Breaker contact system touch set |
-
2012
- 2012-05-16 CN CN2012202232654U patent/CN202534943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904576A (en) * | 2013-08-23 | 2014-07-02 | 华荣科技股份有限公司 | Trailer entering mechanism and vacuum power distribution device comprising same |
| CN103904576B (en) * | 2013-08-23 | 2016-12-28 | 华荣科技股份有限公司 | Enter mechanism of car and the vacuum distribution equipment comprising it |
| CN103915300A (en) * | 2014-04-04 | 2014-07-09 | 宁波奇乐电气集团有限公司 | Breaker contact system touch set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20210516 |