CN203983130U - A kind of three-station of quick-speed turning on-off bus transfer current - Google Patents
A kind of three-station of quick-speed turning on-off bus transfer current Download PDFInfo
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- CN203983130U CN203983130U CN201420337896.8U CN201420337896U CN203983130U CN 203983130 U CN203983130 U CN 203983130U CN 201420337896 U CN201420337896 U CN 201420337896U CN 203983130 U CN203983130 U CN 203983130U
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- conductor
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Abstract
A kind of three-station of quick-speed turning on-off bus transfer current, the conducting rod having overcome in prior art moving conductive intracoelomic cavity can clash into moving conductive intracoelomic cavity bottom, cut-off conductor and moving conductive body useful life thereby reduce, and can affect the speed of cut-offfing and solid conducting rod and the gap of cut-offfing between spring base and be annular gap, the gas that moment sprays be circular, easily disperse, ejection air-flow a little less than, speed is slower, the problem of speed is cut-off in impact, feature be in the inner chamber of described insulated conductor, be also provided with simple in structure, the spiral conductor of good rigidly, in the cavity of moving conductive body, buffer is installed, conducting rod is hollow conducting rod, the boring passage of conducting rod forms front exhaust hole, gap between cushion socket side plane and the moving-conductor of buffer forms arch exhaust passage, beneficial effect is, the air-flow of the Compressed Gas ejection in moving conductive intracoelomic cavity is strong, speed is fast, be conducive to breath arc, and improve the mechanical endurance of cut-offfing conductor and moving conductive body.
Description
Technical field
The utility model belongs to high pressure power transmission and distribution technical field, particularly a kind of for the three-station using clean dried compressed air or nitrogen as a kind of quick-speed turning on-off bus transfer current of the switch combined electrical appliance equipment of dielectric.
Background technology
Three-station is the important electric elements on switchgear, the three-station with transfer bus current is the core parts of double bus switch apparatus, in prior art, the patent of invention that is 201110327145.9 as the applicant's application number discloses a kind of three-station that cut-offs bus transfer current ability that has, it is to drive insulated connecting rod to rotate by three-station mechanism, the tooth bar that insulated connecting rod is fixed on moving electric conductor by gear driven carries out straight reciprocating motion, in the time that moving conductive body moves to different station, realize the conducting of circuit, isolation or three kinds of states of ground connection.The sample of this invention is carried out finding in type approval test process, wherein the conducting rod in moving conductive intracoelomic cavity is in the time cut-offfing bus transfer current, cut-off the energy that spring abrupt release goes out and can be with moving conductive rod to clash into moving conductive intracoelomic cavity bottom due to compressed, because type approval test requires deciliters for 100 times, in fact carry out after tens times in type approval test, moving conductive intracoelomic cavity bottom all deforms with conducting rod impact site, this needs fair speed when being because cut-offfing, and speed does not need too high while cut-offfing latter stage, prior art has only been considered the high speed in early stage, and there is no good later stage deceleration device, only stop by mechanical impact, greatly reduce like this its useful life, and can affect the speed of cut-offfing, in addition, because conducting rod is solid, gas moment ejection described in it in moving conductive intracoelomic cavity forms compression air-blowing, play the work of rapid arc extinguishing between isolation fracture in order to cut-off bus transfer current, be by solid conducting rod and cut-off the ejection of gap between spring base, the problem existing is, first, because solid conducting rod and the gap of cut-offfing between spring base are annular gap, the gas that moment sprays be circular, easily disperse, the second, due to solid conducting rod and to cut-off annular gap between spring base very little, the air-flow of ejection a little less than, speed is slower, speed is cut-off in impact.Due to the existence of above-mentioned two problems, make the arc extinction between the isolation fracture of moving conductive body and insulated conductor composition still slower, in type approval test process, occur the fingertip spring of the ball head of insulated conductor, insulated conductor fingertip spring, conducting rod, insulated conductor inside and isolation to cut-off the serious situation of conductor ablation, so just had the poor problem of fail safe; The 3rd, CONTACT WITH FRICTION between conducting rod and insulated conductor fingertip spring, Reusability can reduce the elasticity of insulated conductor fingertip spring; Larger on the frictional force impact between conducting rod and insulated conductor fingertip spring, and then the synchronism that affects three-phase three-station switch and cut-off bus transfer current.
Summary of the invention
Problem to be solved in the utility model is, overcome deficiency and defect that prior art exists, provide one can improve moment and cut-off speed and can improve instant airflow intensity and can prevent from cut-offfing latter stage mechanical part and clash into, and can strengthen magnetic field between isolation fracture
oneplant the three-station of quick-speed turning on-off bus transfer current.
The technical solution adopted in the utility model comprises insulated conductor, middle conductor, moving conductive body and earthing conductor, the two ends of described middle conductor are separately installed with intershield ring, Basel's spring in the middle of being provided with between middle conductor and moving conductive body, left end at earthing conductor is installed earth shield ring, and ground connection Basel spring is installed in the inner chamber of earthing conductor, isolation Basel spring is installed in the inner chamber of insulated conductor, in the cavity of moving conductive body, be provided with and cut-off conductor, spiral conductor is also installed in the inner chamber of described insulated conductor, central axis place at spiral conductor is processed with shoulder hole, in this shoulder hole, arcing contact is installed, buffer is also installed in the cavity of moving conductive body.
Described buffer is made up of cushion socket, damping spring, shock-absorbing sleeve and guide post assembling, on guide post, be set with cushion socket, damping spring and shock-absorbing sleeve, and make guide post pass cushion socket, damping spring and shock-absorbing sleeve, tail end round end place at guide post is provided with shaft block ring, and the front end of guide post is riveted on shock-absorbing sleeve, on the face of cylinder of described cushion socket, be equidistantly processed with 3 cushion socket side planes, gap between described cushion socket side plane and moving-conductor forms arch exhaust passage, correspondingly on described shock-absorbing sleeve is processed with 3 final vacuum holes.
The buffering axle sleeve that polytetrafluoroethylmaterial material is made is installed in the hole at described cushion socket axle center place, and by back-up ring, buffering axle sleeve is fixed on cushion socket.
Described spiral conductor is the conductor that is processed with penetrating helicla flute formation spiral conduction pattern on copper pipe, is also processed with a step in the bottom of described spiral conductor, is processed with screwed hole in this stepped portions.
The described conductor that cut-offs forms by cut-offfing spring, conducting rod, fingertip head, fixed cover, Anti-slip cover and the assembling of conduction Basel spring, wherein fingertip head is connected with the threaded one end of conducting rod, described conducting rod is hollow conducting rod, the boring passage of conducting rod forms front exhaust hole, described conducting rod is arranged in fixed cover, the outer suit of fixed cover cut-offs spring, the other end at conducting rod is installed Anti-slip cover, Anti-slip cover is fixed on conducting rod by shaft block ring, and conduction Basel spring is installed between conducting rod and fixed cover.
The blind screwed hole that described arcing contact is processed by tail end is fastened in insulated conductor with long sunk screw, and spiral conductor is fastened in insulated conductor by screwed hole or bolt hole and short sunk screw or bolt.
The arch exhaust passage that gap between described cushion socket side plane and moving-conductor forms has 3, and the arc of this arch exhaust passage is less than semicircle, bottom width is 15mm～25mm.
When use, described insulated conductor is connected with outdoor bushing, middle conductor and vacuum interrupter outlet bus are bolted to connection, earthing conductor is connected with three-station place tank body, in the time that three-station closes in isolating, described moving conductive body inserts in the inner chamber of insulated conductor, and realize electrical connection by isolation Basel spring, moving conductive body drives the conductor that cut-offs in its inner chamber to move simultaneously, the fingertip head that cut-offs conductor is tightly embraced the bulb of the arcing contact in insulated conductor inner chamber, in the time that three-station carries out separating brake, middle conductor drives moving conductive body to isolation point position motion, in the time that moving conductive body moves to desired location, cut-off the compressed energy storage of spring while being greater than the energy storage of frictional force between fingertip head and arcing contact, just can realize quick-speed turning on-off bus transfer current.
Compared with prior art, the beneficial effects of the utility model are:
(1) due to fingertip head and arcing contact disengaging, certainly lead to electric arc, in order effectively to suppress generation and the rapid arc extinguishing of electric arc, the utility model is provided with spiral conductor in the inner chamber of insulated conductor, on spiral conductor, have penetrating helicla flute, cut-offfing moment forces bus transfer current to become spiral conduction pattern by straight line conduction pattern, and then strengthen the magnetic field between fingertip head and arcing contact, be conducive to breath arc, because the speed of cut-offfing conductor is far away higher than the speed of moving conductive body, in the inner chamber of moving conductive body, produce Compressed Gas, therefore have front-seat pore at the axle center place of conducting rod, be that described conducting rod is hollow conducting rod, boring passage by conducting rod forms front exhaust hole, Compressed Gas in electric conductor inner chamber is cylindric while discharge, gas is concentrated, be difficult for dispersing, and conducting rod and the annular gap of cut-offfing between spring base form compound gas channel, the Compressed Gas of being convenient in moving conductive intracoelomic cavity is discharged, and the gas of moment ejection be circular add cylindric, the air-flow of ejection is stronger, speed, air-flow blows between fingertip head and arcing contact, be conducive to equally breath arc,
(2) spiral conductor described in the utility model is the conductor that is processed with penetrating helicla flute formation spiral conduction pattern on copper pipe, simple in structure, and good rigidly is more convenient with respect to adopting spring welding fabrication to process, and not yielding low with cost;
(3) in the time testing known cut-offfing, need fair speed, and speed does not need too high while cut-offfing latter stage, conventional art has only been considered the high speed in early stage, and there is no good later stage deceleration device, only stop by mechanical impact, greatly reduce like this its useful life, in order to improve the mechanical endurance of cut-offfing conductor and moving conductive body, the utility model is provided with buffer at the intracavity bottom of moving conductive body, in the time cut-offfing the Anti-slip cover of conductor and the cushion socket of buffer and contact, guide post inserts in the front-seat pore of conducting rod, can stop like this discharge of Compressed Gas, make the Compressed Gas of buffer inside to cut-offfing counter-force of conductor, force and cut-off conductor and slow down and stop, so greatly improve the mechanical endurance of cut-offfing conductor and moving conductive body, in order to improve the mechanical endurance of buffer and to ensure the operating mode that it is good, on shock-absorbing sleeve, have final vacuum hole, Compressed Gas bears a part of pressure by the intracavity bottom of moving conductive body like this, on cushion socket, have between cushion socket side plane and moving conductive body and form arch exhaust passage, be convenient to the reaction force that Anti-slip cover directly bears Compressed Gas in the time cut-offfing latter stage.
Brief description of the drawings
Fig. 1 is front view of the present utility model,
Fig. 2 is the A-A cutaway view of Fig. 1,
Fig. 3 is the B-B cutaway view of Fig. 2,
Fig. 4 is the F portion enlarged drawing of Fig. 2,
Fig. 5 is the M portion enlarged drawing of Fig. 2,
Fig. 6 is the G portion enlarged drawing of Fig. 2,
Fig. 7 is the C-C cutaway view of Fig. 6,
Fig. 8 is the front view of spiral conductor,
Fig. 9 is the D-D cutaway view of Fig. 8.
In figure:
1. insulated conductor,
2. isolation Basel spring,
3. middle conductor, 4. intershield ring,
5. Basel's spring in the middle of, 6. insulated transmission axle, 6-1. power transmission shaft inserts,
7. gear cover,
8. moving conductive body, 8-1. moving conductive body groove,
9. cut-off conductor,
9-1. cut-offs spring,
9-2. conducting rod, the front-seat pore of 9-2-1.,
9-3. fingertip head, 9-4. fixed cover,
9-5. Anti-slip cover, 9-6. conduction Basel spring,
10. buffer,
10-1. cushion socket, 10-1-1. cushion socket side plane,
10-2. damping spring,
10-3. shock-absorbing sleeve, 10-3-1. final vacuum hole,
10-4. guide post, 10-5. shaft block ring,
10-6. cushions axle sleeve,
11. earthing conductors, 12. earth shield rings,
13. ground connection Basel springs, 14. tooth bars,
15. gears,
16. spiral conductors,
The penetrating helicla flute of 16-1., 16-2. step,
16-3. screwed hole, 16-4. shoulder hole,
17. arcing contacts,
18. long sunk screws,
19. short sunk screws,
20. arch exhaust passages,
21. bearings.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in Fig. 1～Fig. 7, the utility model comprises insulated conductor 1, middle conductor 3 and earthing conductor 11, described insulated conductor 1, middle conductor 3 and earthing conductor 11 are on same axis, the two ends of middle conductor 3 are separately installed with intershield ring 4, left end at earthing conductor 11 is installed earth shield ring 12, and ground connection Basel spring 13 is installed in the inner chamber of earthing conductor 11, isolation Basel's spring 2 and spiral conductor 16 are installed in the inner chamber of insulated conductor 1, as shown in Figure 8 and Figure 9, described spiral conductor 16 forms the conductor of spiral conduction pattern for be processed with penetrating helicla flute 16-1 on copper pipe, be processed with a step 16-2 in the bottom of spiral conductor 16, be processed with screwed hole 16-3 at this step 16-2 position, central axis place at spiral conductor 16 is processed with shoulder hole 16-4, in this shoulder hole 16-4, arcing contact 17 is installed, described spiral conductor 16 and arcing contact 17 and insulated conductor 1 are also on same axis, the blind screwed hole that arcing contact 17 is processed by tail end is fastened in insulated conductor 1 with long sunk screw 18, spiral conductor 16 is fastened in insulated conductor 1 by screwed hole 16-3 and short sunk screw 19, moving conductive body 8 is installed in the cavity of middle conductor 3, on moving conductive body 8, be processed with moving conductive body groove 8-1, in this moving conductive body groove 8-1, be installed with tooth bar 14, tooth bar 14 engages with the gear 15 being fixedly mounted on the power transmission shaft inserts 6-1 of insulated transmission axle 6, gear cover 7 is installed outside gear 15, gear cover 7 is bolted in middle conductor 3, 2 bearings 21 are installed on power transmission shaft inserts 6-1, these 2 bearings 21 are positioned at gear 15 both sides, 7 and two 2 bearing 21 outer ring close contacts of described gear cover, the power transmission shaft inserts 6-1 of described insulated transmission axle 6 is through the bearing 21 of gear 15 and gear 15 both sides, and rotate in two bearings 21, in the time that three station operating mechanisms drive insulated transmission axle 6 to rotate, power transmission shaft inserts 6-1 driven gear 15 by insulated transmission axle 6 rotates, and then drive the moving conductive body 8 that is fixed with tooth bar 14 to do straight reciprocating motion, in order to ensure the electrical connection of moving conductive body 8 and middle conductor 3, Basel's spring 5 in the middle of moving conductive body 8 and middle conductor 3 are provided with between the two, in the cavity of moving conductive body 8, two ends, left and right are separately installed with and cut-off conductor 9 and buffer 10, cut-offfing conductor 9 is fixed in the inner chamber of moving conductive body 8 by hole back-up ring,
As shown in Figure 5 and Figure 6, the described conductor 9 that cut-offs is by cut-offfing spring 9-1, conducting rod 9-2, fingertip head 9-3, fixed cover 9-4, Anti-slip cover 9-5 and the conduction spring 9-6 of Basel assembling form, wherein fingertip head 9-3 is connected with the threaded one end of conducting rod 9-2, have front-seat pore 9-2-1 at the axle center place of conducting rod 9-2, be that described conducting rod 9-2 is hollow conducting rod, the boring passage of conducting rod 9-2 forms front exhaust hole 9-2-1, described conducting rod 9-2 is arranged in fixed cover 9-4, the outer suit of fixed cover 9-4 cut-offs spring 9-1, the other end at conducting rod 9-2 is installed Anti-slip cover 9-5, Anti-slip cover 9-5 is fixed on conducting rod 9-2 by shaft block ring, in order more effectively to ensure the electrical connection between conducting rod 9-2 and fixed cover 9-4, the conduction spring 9-6 of Basel is installed between conducting rod 9-2 and fixed cover 9-4.
As shown in Figure 6 and Figure 7, described buffer 10 is by cushion socket 10-1, damping spring 10-2, shock-absorbing sleeve 10-3 and guide post 10-4 assembling form, on guide post 10-4, be set with cushion socket 10-1, damping spring 10-2 and and shock-absorbing sleeve 10-3, and make guide post 10-4 through cushion socket 10-1, damping spring 10-2 and shock-absorbing sleeve 10-3, in order to prevent that guide post 10-4 from coming off, tail end round end place at guide post 10-4 is provided with shaft block ring 10-5, and the front end of guide post 10-4 is riveted on shock-absorbing sleeve 10-3, on the face of cylinder of described cushion socket 10-1, be equidistantly processed with 3 cushion socket side plane 10-1-1, gap between this cushion socket side plane 10-1-1 and moving conductive body 8 forms 3 arcs and is less than semicircle, bottom width is the arch exhaust passage 20 of 15mm～25mm, correspondingly on described shock-absorbing sleeve 10-3 be processed with 3 final vacuum hole 10-3-1, clash into cushion socket 10-1 for fear of between conducting rod 9-2, the buffering axle sleeve 10-6 that polytetrafluoroethylmaterial material is made is installed in the hole at cushion socket 10-1 axle center place, and by back-up ring, buffering axle sleeve 10-6 is fixed on cushion socket 10-1.
When use, described insulated conductor 1 is connected with outdoor bushing, middle conductor 3 is bolted to connection with vacuum interrupter outlet bus, earthing conductor 11 is connected with three-station place tank body, in the time that three-station closes in isolating, moving conductive body 8 inserts in the inner chamber of insulated conductor 1, and realize electrical connection by isolation Basel spring 2, moving conductive body 8 drives the conductor 9 that cut-offs in its inner chamber to move simultaneously, the fingertip head 9-3 that cut-offs conductor 9 is contacted with the arcing contact 17 in insulated conductor 1 inner chamber, because the anterior similar finger of fingertip head 9-3 can tightly be embraced the bulb of arcing contact 17, in the time that three-station carries out separating brake, middle conductor 3 drives moving conductive body 8 to isolation point position motion, due to fingertip head, 9-3 tightly embraces the bulb of arcing contact 17, only have in the time that moving conductive body 8 moves to desired location, cut-off the compressed energy storage of spring 9-1 while being greater than the energy storage of frictional force between fingertip head 9-3 and arcing contact 17, just can realize quick-speed turning on-off bus transfer current, because fingertip head 9-3 and arcing contact 17 depart from, certainly lead to electric arc, there is the electric arc will ablation fingertip head 9-3 and the surface of arcing contact 17, in order effectively to suppress the generation of electric arc, arc extinguishing rapidly, the utility model is provided with spiral conductor 16 in the inner chamber of insulated conductor 1, on spiral conductor 16, have penetrating helicla flute 11-1, cut-offfing moment forces bus transfer current to become spiral conduction pattern by straight line conduction pattern, and then strengthen the magnetic field between fingertip head 9-3 and arcing contact 17, be conducive to breath arc, because the speed of cut-offfing conductor 9 is far away higher than the speed of moving conductive body 8, in the inner chamber of moving conductive body 8, produce Compressed Gas, therefore have front-seat pore 9-2-1 at the axle center place of conducting rod 9-2, the Compressed Gas of being convenient to like this in moving conductive body 8 inner chambers is discharged, air-flow blows between fingertip head 9-3 and arcing contact 17, be conducive to equally breath arc, in the time testing known cut-offfing, need fair speed, and speed does not need too high while cut-offfing latter stage, conventional art has only been considered the high speed in early stage, and there is no good later stage deceleration device, only stop by mechanical impact, greatly reduce like this its useful life, in order to improve the mechanical endurance of cut-offfing conductor 9 and moving conductive body 8, the utility model is provided with buffer 10 at the intracavity bottom of moving conductive body 8, in the time cut-offfing the Anti-slip cover 9-5 of conductor 9 and the cushion socket 10-1 of buffer 10 and contact, guide post 10-4 inserts in the front-seat pore 9-2-1 of conducting rod 9-2, can stop like this discharge of Compressed Gas, make the Compressed Gas of buffer 10 inside to cut-offfing 9 one reaction forces of conductor, force and cut-off conductor 9 and slow down and stop, so greatly improve the mechanical endurance of cut-offfing conductor 9 and moving conductive body 8, in order to improve the mechanical endurance of buffer 10 and to ensure the operating mode that it is good, on shock-absorbing sleeve 10-3, have final vacuum hole 10-3-1, Compressed Gas bears a part of pressure by the intracavity bottom of moving conductive body 8 like this, in the time cut-offfing latter stage, directly bear the reaction force of Compressed Gas for the ease of Anti-slip cover 9-5, on cushion socket 10-1, have between cushion socket side plane 10-1-1 and moving conductive body 8 and form arch exhaust passage 18.
Claims (7)
1. the three-station of a quick-speed turning on-off bus transfer current, comprise insulated conductor (1), middle conductor (3), moving conductive body (8) and earthing conductor (11), the two ends of described middle conductor (3) are separately installed with intershield ring (4), Basel's spring (5) in the middle of being provided with between middle conductor (3) and moving conductive body (8), left end at earthing conductor (11) is installed earth shield ring (12), and ground connection Basel spring (13) is installed in the inner chamber of earthing conductor (11), isolation Basel's spring (2) is installed in the inner chamber of insulated conductor (1), in the cavity of moving conductive body (8), be provided with and cut-off conductor (9), it is characterized in that, spiral conductor (16) is also installed in the inner chamber of described insulated conductor (1), be processed with shoulder hole (16-4) at the central axis place of spiral conductor (16), arcing contact (17) is installed in this shoulder hole (16-4), buffer (10) is also installed in the cavity of moving conductive body (8).
2. a kind of three-station of quick-speed turning on-off bus transfer current according to claim 1, it is characterized in that, described buffer (10) is by cushion socket (10-1), damping spring (10-2), shock-absorbing sleeve (10-3) and guide post (10-4) assembling form, at guide post (10-4) upper suit cushion socket (10-1), damping spring (10-2) and shock-absorbing sleeve (10-3), and make guide post (10-4) through cushion socket (10-1), damping spring (10-2) and shock-absorbing sleeve (10-3), tail end round end place at guide post (10-4) is provided with shaft block ring (10-5), and the front end of guide post (10-4) is riveted on shock-absorbing sleeve (10-3), on the face of cylinder of described cushion socket (10-1), be equidistantly processed with 3 cushion socket side planes (10-1-1), gap between described cushion socket side plane (10-1-1) and moving-conductor (8) forms arch exhaust passage (20), in upper corresponding 3 the final vacuum holes (10-3-1) that are processed with of described shock-absorbing sleeve (10-3).
3. a kind of three-station of quick-speed turning on-off bus transfer current according to claim 2, it is characterized in that, the buffering axle sleeve (10-6) that polytetrafluoroethylmaterial material is made is installed in the hole at described cushion socket (10-1) axle center place, and will cushions axle sleeve (10-6) by back-up ring and be fixed on cushion socket (10-1).
4. a kind of three-station of quick-speed turning on-off bus transfer current according to claim 1, it is characterized in that, described spiral conductor (16) forms the conductor of spiral conduction pattern for be processed with penetrating helicla flute (16-1) on copper pipe, also be processed with a step (16-2) in the bottom of described spiral conductor (16), be processed with screwed hole (16-3) at this step (16-2) position.
5. a kind of three-station of quick-speed turning on-off bus transfer current according to claim 1, it is characterized in that, the described conductor (9) that cut-offs is by cut-offfing spring (9-1), conducting rod (9-2), fingertip head (9-3), fixed cover (9-4), Anti-slip cover (9-5) and conduction Basel's spring (9-6) assembling form, wherein fingertip head (9-3) is connected with the threaded one end of conducting rod (9-2), described conducting rod (9-2) is hollow conducting rod, the boring passage of conducting rod (9-2) forms front exhaust hole (9-2-1), described conducting rod (9-2) is arranged in fixed cover (9-4), the outer suit of fixed cover (9-4) cut-offs spring (9-1), the other end at conducting rod (9-2) is installed Anti-slip cover (9-5), Anti-slip cover (9-5) is fixed on conducting rod (9-2) by shaft block ring, conduction Basel's spring (9-6) is installed between conducting rod (9-2) and fixed cover (9-4).
6. a kind of three-station of quick-speed turning on-off bus transfer current according to claim 1, it is characterized in that, the blind screwed hole that described arcing contact (17) is processed by tail end is fastened on insulated conductor (1) above with long sunk screw (18), and spiral conductor (16) is fastened in insulated conductor (1) by screwed hole or bolt hole (16-3) and short sunk screw or bolt (19).
7. a kind of three-station of quick-speed turning on-off bus transfer current according to claim 2, it is characterized in that, the arch exhaust passage (20) that gap between described cushion socket side plane (10-1-1) and moving-conductor (8) forms has 3, and the arc of this arch exhaust passage (20) is less than semicircle, bottom width is 15mm～25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337896.8U CN203983130U (en) | 2014-06-24 | 2014-06-24 | A kind of three-station of quick-speed turning on-off bus transfer current |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337896.8U CN203983130U (en) | 2014-06-24 | 2014-06-24 | A kind of three-station of quick-speed turning on-off bus transfer current |
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| Publication Number | Publication Date |
|---|---|
| CN203983130U true CN203983130U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420337896.8U Expired - Fee Related CN203983130U (en) | 2014-06-24 | 2014-06-24 | A kind of three-station of quick-speed turning on-off bus transfer current |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021973A (en) * | 2014-06-24 | 2014-09-03 | 沈阳华德海泰电器有限公司 | Three-position switch for transferring current by quickly disconnecting bus |
-
2014
- 2014-06-24 CN CN201420337896.8U patent/CN203983130U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021973A (en) * | 2014-06-24 | 2014-09-03 | 沈阳华德海泰电器有限公司 | Three-position switch for transferring current by quickly disconnecting bus |
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| 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: 20141203 Termination date: 20160624 |