CN204315483U - A kind of Minitype electrical leakage breaker reclosing device - Google Patents
A kind of Minitype electrical leakage breaker reclosing device Download PDFInfo
- Publication number
- CN204315483U CN204315483U CN201520005143.1U CN201520005143U CN204315483U CN 204315483 U CN204315483 U CN 204315483U CN 201520005143 U CN201520005143 U CN 201520005143U CN 204315483 U CN204315483 U CN 204315483U
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- electrical leakage
- leakage breaker
- turning wheel
- bevel gear
- minitype electrical
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Abstract
The utility model relates to a kind of Minitype electrical leakage breaker reclosing device, it is characterized in that: the lid comprising bottom and be connected with bottom, wiring board is provided with in bottom and lid, handle turning wheel, outlet binding post, inlet wire binding post, N pole switch and driving mechanism, described driving mechanism comprises semicircle bevel gear and gear motor, the output shaft of this gear motor is arranged with travelling gear, this travelling gear engages with semicircle bevel gear, handle turning wheel and semicircle bevel gear are fitted and are arranged, this semicircle bevel gear is provided with arc-shaped limit groove on the end face of handle turning wheel, handle turning wheel is provided with on the end face of semicircle bevel gear can arc boss that arcuately limited impression is reciprocating, this handle turning wheel is connected with connecting rod, the utility model is: this Minitype electrical leakage breaker reclosing device has effectively filled up the demand of dividing, closing a floodgate that remote signal controls Minitype electrical leakage breaker.
Description
Technical field
The utility model relates to low-voltage electrical apparatus automation field, especially a kind of Minitype electrical leakage breaker reclosing device.
Background technology
Domestic supply network end effector is generally small-size moulded case circuit breaker or Minitype electrical leakage breaker, and main model has the series such as C45 (DZ47), C65 and DZ47LE.This series products only possesses short circuit, overload or electric leakage automatic trip defencive function, but does not possess that Long-distance Control is divided, closing function.Along with the development of China's intelligent low-pressure networking distribution, and intelligent distribution system is to the requirement of supply network total current selective protection, and eager demand possesses that Long-distance Control is divided, the end effector of closing function.
At present, market also there is not the reclosing device applied on Minitype electrical leakage breaker, market is badly in need of a reclosing device applied to specially on Minitype electrical leakage breaker.
Utility model content
For prior art exist deficiency, the purpose of this utility model is to provide a kind of Minitype electrical leakage breaker reclosing device, coordinate Minitype electrical leakage breaker realize instrument control or remote signal control Minitype electrical leakage breaker point, combined floodgate demand; Meanwhile, in its control procedure, do not affect the short circuit of Minitype electrical leakage breaker, overload protection function or creepage protection function.
The technical solution of the utility model is achieved in that a kind of Minitype electrical leakage breaker reclosing device, it is characterized in that: the lid comprising bottom and be connected with bottom, wiring board is provided with in bottom and lid, handle turning wheel, outlet binding post, inlet wire binding post, N pole switch and driving mechanism, described driving mechanism comprises semicircle bevel gear and gear motor, the output shaft of this gear motor is arranged with travelling gear, this travelling gear engages with semicircle bevel gear, handle turning wheel and semicircle bevel gear are fitted and are arranged, this semicircle bevel gear is provided with arc-shaped limit groove on the end face of handle turning wheel, handle turning wheel is provided with on the end face of semicircle bevel gear can arc boss that arcuately limited impression is reciprocating, this handle turning wheel is connected with connecting rod.
Be preferably, described semicircle bevel gear is provided with towards the end face of handle turning wheel two arc-shaped limit grooves that positional symmetry arranges, handle turning wheel is provided with two arc boss on the end face of semicircle bevel gear, and each arc boss one_to_one corresponding is embedded in each arc-shaped limit groove.
In this Minitype electrical leakage breaker reclosing device: the operating state of semicircle bevel gear and handle turning wheel is, during reset condition, the arc boss on handle turning wheel is positioned at the side of arc-shaped limit groove; During combined floodgate, now gear motor rotates, and drives semicircle bevel gear to rotate, thus band fixed handle turning wheel rotates, until Minitype electrical leakage breaker reclosing device realizes closing a floodgate;
After combined floodgate puts in place, gear motor rotates in the opposite direction, and now semicircle bevel gear does reseting movement, until when the arc boss on handle turning wheel is positioned at the opposite side of arc-shaped limit groove, now gear motor stops, and is the ready work of separating brake operation;
As to separating brake, gear motor continues to rotate in the opposite direction, drives semicircle bevel gear to rotate, thus band fixed handle turning wheel rotates, until Minitype electrical leakage breaker reclosing device realizes separating brake.
By adopting technique scheme, this Minitype electrical leakage breaker reclosing device has effectively filled up the demand of dividing, closing a floodgate that remote signal controls Minitype electrical leakage breaker, the Drive Structure of arc-shaped limit groove and arc boss, effectively achieve three kinds of states that reclosing device is controlled, be convenient to promote, and connecting rod can realize the divide-shut brake of the single Minitype electrical leakage breaker of handle turning wheel Direct driver.
The utility model is set to further: described N pole switch comprises N pole switch member, outlet copper bar, inlet wire copper bar and conducting block, the middle part of this N pole switch member is articulated with on the inner side of lid, conducting block is fixedly connected on the lower end of N pole switch member, conducting block is corresponding with inlet wire copper bar to be arranged, upper end and the handle turning wheel of N pole switch member link, the lower end of N pole switch member to be connected with outlet copper bar by being flexible coupling, and outlet copper bar is connected with outlet binding post, and inlet wire copper bar is connected with inlet wire binding post.
Be preferably, the bottom of described handle turning wheel is provided with breach, and the bottom surface of this breach is plane, and upper surface and this plane of N pole switch member are suitable.
When this Minitype electrical leakage breaker reclosing device is in making process, handle turning wheel can rotate, thus the periphery of handle turning wheel can with the upper-end contact of N pole switch member, distance between the upper end of now handle turning wheel and N pole switch member becomes large instantaneously, thus driving N pole switch member is rotated, and just can realize N pole switch conduction; The process of separating brake is contrary with combined floodgate.
By adopting technique scheme, this N pole switch is when splicing with Minitype electrical leakage breaker, its action is first close to divide afterwards, namely Minitype electrical leakage breaker reclosing device just can realize when not being energized closing, Minitype electrical leakage breaker reclosing device is in closure state when also non-power-off, this process status can not produce spark, eliminate the operation of arc extinguishing, and the situation of melting welding occurs because not having pressure each other when being energized instantaneously to prevent outlet copper bar, inlet wire copper bar and conducting block.
The utility model is also set to further: also include axle, and this axle comprises cylindrical portion and square column portion, and this semicircle bevel gear is sheathed in cylindrical portion, and handle turning wheel is sheathed in square column portion.
By adopting technique scheme, this axle is arranged to cylindrical portion and square column portion formation, effectively ensure that semicircle bevel gear can not rotate because of this axle driving handle turning wheel when rotating, the square column portion of this axle can wear on the handle of multiple Minitype electrical leakage breaker, make this Minitype electrical leakage breaker reclosing device have energy transmission many groups Minitype electrical leakage breaker, make this Minitype electrical leakage breaker reclosing device have two kinds of type of drive.
The utility model is also set to further: also include slip lid and change over switch, and slip lid and lid are slidably connected, and change over switch is electrically connected with wiring board, and change over switch is arranged at lid portion inside, and the trigger point of change over switch is positioned on the motion path of slip lid.
Be preferably, described slip lid both sides are provided with the sliding shoe of indent, and the both sides of lid are respectively arranged with the chute suitable with sliding shoe.
By adopting technique scheme, when this Minitype electrical leakage breaker reclosing device splices on Minitype electrical leakage breaker, this slip lid can directly be covered on Minitype electrical leakage breaker reclosing device and Minitype electrical leakage breaker; When slip lid is slided to Minitype electrical leakage breaker reclosing device direction, sliding shoe just can touch the trigger point of change over switch, thus make the power-off of Minitype electrical leakage breaker reclosing device, simultaneously, slip lid while expose the handle of circuit breaker, realize divide-shut brake to facilitate the handle of manual operation Minitype electrical leakage breaker; When being slided to Minitype electrical leakage breaker direction by slip lid, sliding shoe just can be separated with the trigger point of change over switch, and Minitype electrical leakage breaker reclosing device is energized, simultaneously, slip lid hides the handle of circuit breaker, avoids under automatic closing state, malfunction operating grip.Thus, application solutions automatic controlling small residual current circuit breaker point, close a floodgate.
The utility model is also set to further: described wiring board is provided with opening, the semicircle umbrella shape gear piece that semicircle bevel gear comprises gear and is connected with gear, the front portion of gear embeds in this opening, semicircle umbrella shape gear piece is provided with permanent magnet, wiring board is provided with three pieces of Hall elements, each Hall element is distributed in the edge of opening, and three pieces of Hall elements are distributed on same semicircle.
By adopting technique scheme, turning to of gear motor and operating state is controlled by the induction of these three pieces of Hall elements and permanent magnet, thus achieving the operating state of automatic controlling small residual current circuit breaker reclosing device, final realization realizes automatically controlling to the operating state of Minitype electrical leakage breaker.
The utility model is also set to further: also include outer tactile tripping mechanism, this outer tactile tripping mechanism comprises electromagnet, described electromagnet comprises and is fixed on the coil on lid and the yoke outside coil, iron core is provided with in described coil, the side of described iron core is provided with can make flexible reciprocating stretchable sheet, and described stretchable sheet and Minitype electrical leakage breaker are threaded off and stirred window place dropout pin and link.
By adopting technique scheme, when Minitype electrical leakage breaker reclosing device instant cut-off, electromagnet and the dropout of circuit breaker stir that window is corresponding to be arranged, the iron core of electromagnet touches the dropout pin of dropout window by stretchable sheet, coordinate the storage capacitor electric discharge in control circuit to promote Minitype electrical leakage breaker dropout separating brake, achieve power failure trip avoidance function.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment structural blast schematic diagram;
Fig. 2 is the structural representation of the utility model embodiment axis;
Fig. 3 is the structural representation of driving mechanism in the utility model embodiment;
Fig. 4 is the structure cross-sectional schematic of driving mechanism in the utility model embodiment;
Fig. 5 is the structural representation of semicircle bevel gear in the utility model embodiment;
Fig. 6 is switch disrupted configuration schematic diagram in N pole in the utility model embodiment;
Fig. 7 is switch closing structure schematic diagram in N pole in the utility model embodiment;
Fig. 8 is the structural representation of slip lid in the utility model embodiment;
Fig. 9 is the utility model embodiment and Minitype electrical leakage breaker drive mechanism schematic diagram;
Figure 10 is wiring board and semicircle bevel gear structural representation in the utility model embodiment;
Figure 11 is that the utility model embodiment is spliced in Minitype electrical leakage breaker structural representation.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Fig. 1-Figure 11, the utility model discloses a kind of Minitype electrical leakage breaker reclosing device, in the utility model specific embodiment, the lid 2 comprising bottom 1 and be connected with bottom 1, wiring board 4 is provided with in bottom 1 and lid 2, handle turning wheel 6, outlet binding post 13, inlet wire binding post 12, N pole switch 7 and driving mechanism 5, described driving mechanism 5 comprises semicircle bevel gear 53 and gear motor 51, the output shaft of this gear motor 51 is arranged with travelling gear 52, this travelling gear 52 engages with semicircle bevel gear 53, handle turning wheel 6 and semicircle bevel gear 53 are fitted and are arranged, this semicircle bevel gear 53 is provided with arc-shaped limit groove 533 on the end face of handle turning wheel 6, handle turning wheel 6 is provided with on the end face of semicircle bevel gear 53 can arc boss 61 that arcuately limited impression 533 is reciprocating, this handle turning wheel 6 is connected with connecting rod 10.
In the utility model specific embodiment, described semicircle bevel gear 53 is provided with towards the end face of handle turning wheel two arc-shaped limit grooves 533 that positional symmetry arranges, handle turning wheel 6 is provided with two arc boss 61 on the end face of semicircle bevel gear, and each arc boss 61 one_to_one corresponding is embedded in each arc-shaped limit groove 533.
By adopting technique scheme, wherein just can realize can the divide-shut brake of single Minitype electrical leakage breaker for connecting rod,
In the utility model specific embodiment, described N pole switch 7 comprises N pole switch member 71, outlet copper bar 73, inlet wire copper bar 72 and conducting block 74, the middle part of this N pole switch member 71 is articulated with on the inner side of lid 2, conducting block 74 is fixedly connected on the lower end of N pole switch member 71, conducting block 74 is corresponding with inlet wire copper bar 72 to be arranged, upper end and the handle turning wheel 6 of N pole switch member 71 link, the lower end of N pole switch member 71 75 to be connected with outlet copper bar 73 by being flexible coupling, outlet copper bar 73 is connected with outlet binding post 13, and inlet wire copper bar 72 is connected with inlet wire binding post 12.
In the utility model specific embodiment, the bottom of described handle turning wheel 6 is provided with breach, and it is suitable that the bottom surface of this breach is the upper surface of plane 62, N pole switch member 71 and this plane 62.
When this Minitype electrical leakage breaker reclosing device is in making process, handle turning wheel can rotate, thus the periphery of handle turning wheel can with the upper-end contact of N pole switch member, distance between the upper end of now handle turning wheel and N pole switch member becomes large instantaneously, thus driving N pole switch member is rotated, and just can realize N pole switch conduction; The process of separating brake is contrary with combined floodgate.
By adopting technique scheme, this N pole switch is when splicing with Minitype electrical leakage breaker, its action is first close to divide afterwards, namely Minitype electrical leakage breaker reclosing device just can realize when not being energized closing, Minitype electrical leakage breaker reclosing device is in closure state when also non-power-off, this process status can not produce spark, eliminates the operation of arc extinguishing.Above-mentioned, power failure trip avoidance function can prevent circuit breaker in automatic closing process, and the situation of melting welding when sending a telegram here again because not having pressure each other that has a power failure when contact just contacts occurs.
In the utility model specific embodiment, also include axle 3, this axle 3 comprises cylindrical portion 31 and square column portion 32, and this semicircle bevel gear 53 is sheathed in cylindrical portion 31, and handle is stirred wheel case 6 and is located in square column portion 32.
By adopting technique scheme, this axle is arranged to cylindrical portion and square column portion formation, effectively ensure that semicircle bevel gear can not rotate because of this axle driving handle turning wheel when rotating, the square column portion of this axle can wear on the handle of multiple Minitype electrical leakage breaker, make this Minitype electrical leakage breaker reclosing device have energy transmission many groups Minitype electrical leakage breaker, make this Minitype electrical leakage breaker reclosing device have two kinds of type of drive.
In the utility model specific embodiment, also include slip lid 8 and change over switch 18, slip lid 8 and lid 2 are slidably connected, and change over switch 18 is electrically connected with wiring board 4, it is inner that change over switch 18 is arranged at lid 2, and the trigger point of change over switch 18 is positioned on the motion path of slip lid 8.
In the utility model specific embodiment, described slip lid 8 both sides are provided with the sliding shoe 81 of indent, and the both sides of lid 2 are respectively arranged with the chute suitable with sliding shoe 81.
By adopting technique scheme, when this Minitype electrical leakage breaker reclosing device splices on Minitype electrical leakage breaker, this slip lid can directly be covered on Minitype electrical leakage breaker reclosing device and Minitype electrical leakage breaker; When slip lid is slided to Minitype electrical leakage breaker reclosing device direction, sliding shoe just can touch the trigger point of change over switch, thus make the power-off of Minitype electrical leakage breaker reclosing device, thus Minitype electrical leakage breaker just can realize divide-shut brake by the handle on hand rotation Minitype electrical leakage breaker; When being slided to Minitype electrical leakage breaker direction by slip lid, sliding shoe just can be separated with the trigger point of change over switch, thus Minitype electrical leakage breaker reclosing device is energized, and now just can realize automatic controlling small residual current circuit breaker and realize divide-shut brake.
In the utility model specific embodiment, described wiring board 4 is provided with opening 41, the semicircle umbrella shape gear piece 532 that semicircle bevel gear 53 comprises gear 531 and is connected with gear 531, the front portion of gear 531 embeds in this opening 41, semicircle umbrella shape gear piece 532 is provided with permanent magnet 11, wiring board 4 is provided with three pieces of Hall elements, each Hall element is distributed in the edge of opening 41, and three pieces of Hall elements are distributed on same semicircle.
By adopting technique scheme, turning to of gear motor and operating state is controlled by the induction of these three pieces of Hall elements and permanent magnet, thus achieving the operating state of automatic controlling small residual current circuit breaker reclosing device, final realization realizes automatically controlling to the operating state of Minitype electrical leakage breaker.
In the utility model specific embodiment, also include outer tactile tripping mechanism, this outer tactile tripping mechanism comprises electromagnet 14, described electromagnet 14 comprises and is fixed on the coil on lid and the yoke outside coil, iron core is provided with in described coil, the side of described iron core is provided with can make flexible reciprocating stretchable sheet 15, and described stretchable sheet 15 and Minitype electrical leakage breaker are threaded off and stirred window place dropout pin 17 and link.
By adopting technique scheme, when Minitype electrical leakage breaker reclosing device instant cut-off, electromagnet and the dropout of circuit breaker stir that window is corresponding to be arranged, the iron core of electromagnet is stirred window place pulling needle by stretchable sheet and dropout and is connected, Minitype electrical leakage breaker dropout separating brake can be promoted, achieve trip avoidance function.
The operating state of this Minitype electrical leakage breaker reclosing device is as follows: during reset condition, and the arc boss on handle turning wheel is positioned at the side of arc-shaped limit groove;
Control by remote signal, when circuit breaker needs to close a floodgate: gear motor rotates forward, semicircle bevel gear is now driven to rotate, thus band fixed handle turning wheel rotates forward, until Minitype electrical leakage breaker realizes closing a floodgate, when combined floodgate puts in place, permanent magnet on semicircle bevel gear can first piece of Hall element on triggering line plate, the supplier of electricity that control circuit changes gear motor to and reverse rotation.Now, handle keeps "on" position, and when the reverse rotation of semicircle bevel gear is to original position, the permanent magnet on semicircle bevel gear understands second piece of Hall element on triggering line plate and gear motor stops.
By signal controlling, when circuit breaker needs separating brake: gear motor continues to rotate in the opposite direction, thus the tripping operation of band fixed handle, after tripping operation, the permanent magnet on semicircle bevel gear can the 3rd piece of Hall element on triggering line plate and gear motor stops.So far, an action cycle is completed.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (9)
1. a Minitype electrical leakage breaker reclosing device, it is characterized in that: the lid comprising bottom and be connected with bottom, wiring board is provided with in bottom and lid, handle turning wheel, outlet binding post, inlet wire binding post, N pole switch and driving mechanism, described driving mechanism comprises semicircle bevel gear and gear motor, the output shaft of this gear motor is arranged with travelling gear, this travelling gear engages with semicircle bevel gear, handle turning wheel and semicircle bevel gear are fitted and are arranged, this semicircle bevel gear is provided with arc-shaped limit groove on the end face of handle turning wheel, handle turning wheel is provided with on the end face of semicircle bevel gear can arc boss that arcuately limited impression is reciprocating, this handle turning wheel is connected with connecting rod.
2. Minitype electrical leakage breaker reclosing device according to claim 1, it is characterized in that: described N pole switch comprises N pole switch member, outlet copper bar, inlet wire copper bar and conducting block, the middle part of this N pole switch member is articulated with on the inner side of lid, conducting block is fixedly connected on the lower end of N pole switch member, conducting block is corresponding with inlet wire copper bar to be arranged, upper end and the handle turning wheel of N pole switch member link, the lower end of N pole switch member to be connected with outlet copper bar by being flexible coupling, outlet copper bar is connected with outlet binding post, and inlet wire copper bar is connected with inlet wire binding post.
3. Minitype electrical leakage breaker reclosing device according to claim 1, is characterized in that: also include axle, and this axle comprises cylindrical portion and square column portion, and this semicircle bevel gear is sheathed in cylindrical portion, and handle turning wheel is sheathed in square column portion.
4. Minitype electrical leakage breaker reclosing device according to claim 1, it is characterized in that: also include slip lid and change over switch, slip lid and lid are slidably connected, change over switch is electrically connected with wiring board, change over switch is arranged at lid portion inside, and the trigger point of change over switch is positioned on the motion path of slip lid.
5. Minitype electrical leakage breaker reclosing device according to claim 1, it is characterized in that: described wiring board is provided with opening, the semicircle umbrella shape gear piece that semicircle bevel gear comprises gear and is connected with gear, the front portion of gear embeds in this opening, semicircle umbrella shape gear piece is provided with permanent magnet, wiring board is provided with three pieces of Hall elements, each Hall element is distributed in the edge of opening, and three pieces of Hall elements are distributed on same semicircle.
6. Minitype electrical leakage breaker reclosing device according to claim 1, it is characterized in that: described semicircle bevel gear is provided with towards the end face of handle turning wheel two arc-shaped limit grooves that positional symmetry arranges, handle turning wheel is provided with two arc boss on the end face of semicircle bevel gear, and each arc boss one_to_one corresponding is embedded in each arc-shaped limit groove.
7. Minitype electrical leakage breaker reclosing device according to claim 1, it is characterized in that: also include outer tactile tripping mechanism, this outer tactile tripping mechanism comprises electromagnet, described electromagnet comprises and is fixed on the coil on lid and the yoke outside coil, iron core is provided with in described coil, the side of described iron core is provided with can make flexible reciprocating stretchable sheet, and described stretchable sheet and Minitype electrical leakage breaker are threaded off and stirred window place dropout pin and link.
8. Minitype electrical leakage breaker reclosing device according to claim 2, is characterized in that: the bottom of described handle turning wheel is provided with breach, and the bottom surface of this breach is plane, and upper surface and this plane of N pole switch member are suitable.
9. Minitype electrical leakage breaker reclosing device according to claim 4, is characterized in that: described slip lid both sides are provided with the sliding shoe of indent, and the both sides of lid are respectively arranged with the chute suitable with sliding shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005143.1U CN204315483U (en) | 2015-01-04 | 2015-01-04 | A kind of Minitype electrical leakage breaker reclosing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005143.1U CN204315483U (en) | 2015-01-04 | 2015-01-04 | A kind of Minitype electrical leakage breaker reclosing device |
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| Publication Number | Publication Date |
|---|---|
| CN204315483U true CN204315483U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520005143.1U Withdrawn - After Issue CN204315483U (en) | 2015-01-04 | 2015-01-04 | A kind of Minitype electrical leakage breaker reclosing device |
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| CN (1) | CN204315483U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485264A (en) * | 2015-01-04 | 2015-04-01 | 温州圣普电气有限公司 | Reclosing device for small-size residual-current circuit breaker |
| CN104835693A (en) * | 2015-05-25 | 2015-08-12 | 温州圣普电气有限公司 | Automatic breaker and control method thereof |
| CN105070606A (en) * | 2015-08-12 | 2015-11-18 | 宏秀电气有限公司 | Automatic brake breaking/closing miniature circuit breaker having rapid brake breaking function |
| CN110783150A (en) * | 2019-12-11 | 2020-02-11 | 上联控股集团有限公司 | External circuit breaker of electric energy meter and N-pole arc-free breaking method thereof |
-
2015
- 2015-01-04 CN CN201520005143.1U patent/CN204315483U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485264A (en) * | 2015-01-04 | 2015-04-01 | 温州圣普电气有限公司 | Reclosing device for small-size residual-current circuit breaker |
| CN104835693A (en) * | 2015-05-25 | 2015-08-12 | 温州圣普电气有限公司 | Automatic breaker and control method thereof |
| CN104835693B (en) * | 2015-05-25 | 2017-03-08 | 温州圣普电气有限公司 | A kind of full-automatic chopper and its control method |
| CN105070606A (en) * | 2015-08-12 | 2015-11-18 | 宏秀电气有限公司 | Automatic brake breaking/closing miniature circuit breaker having rapid brake breaking function |
| CN110783150A (en) * | 2019-12-11 | 2020-02-11 | 上联控股集团有限公司 | External circuit breaker of electric energy meter and N-pole arc-free breaking method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20160615 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |