CN201910377U - Electric type intelligent circuit breaker - Google Patents
Electric type intelligent circuit breaker Download PDFInfo
- Publication number
- CN201910377U CN201910377U CN2010202952088U CN201020295208U CN201910377U CN 201910377 U CN201910377 U CN 201910377U CN 2010202952088 U CN2010202952088 U CN 2010202952088U CN 201020295208 U CN201020295208 U CN 201020295208U CN 201910377 U CN201910377 U CN 201910377U
- Authority
- CN
- China
- Prior art keywords
- clutch
- jump ring
- hole
- drive plate
- clutch ratchet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses an electric type intelligent circuit breaker. An electric type operating mechanism is arranged on a middle cover of the electric type intelligent circuit breaker; the mechanism comprises a motor, a transmission mechanism driven by the motor and a one-way clutch mechanism; the one-way clutch mechanism comprises a clutch ratchet wheel arranged on an output shaft in a relatively fixed way, a driving plate with a circular clutch hole and a clutch component for driving the driving plate to rotate under the action of the clutch ratchet wheel; a plurality of clutch ratchets are arranged at the position of the edge of the periphery of the clutch ratchet wheel, one end face of each clutch ratchet is a driving face, the other end face of each clutch ratchet is a sliding face in the shape of an arc line, and the clutch ratchet wheel is positioned in the circular clutch hole of the driving plate; the two side faces of the driving plate are respectively provided with a stop hole communicated with the clutch hole, and the arrangement directions of the stop holes are vertical to the clutch hole; and the clutch component is a clamping spring with a gap, and spring bodies at both ends of the gap are inserted into the stop holes of the driving plate and are also clamped on the clutch ratchets at the two opposite side ends of the clutch ratchet wheel. The utility model has the advantages of good reliability, little possibility of damage and lower cost.
Description
Technical field
The utility model belongs to the breaker structure design field, is specifically related to a kind of electrodynamic type intelligent breaker.
Background technology
Residual current circuit breaker is under defined terms, and the circuit breaker of energy automatic shutoff circuit when residual current meets or exceeds setting is used to prevent because of the accidents such as loss of life or personal injury, device damage and fire of getting an electric shock, electric leakage causes.
Traditional residual current circuit breaker is except finishing the function of automatic brake separating when electrical leakage quantity or overload quantity surpass preset value, other times will be realized separating brake or close a floodgate all needing manual operation.For example Chinese patent 200620105204.2 disclosed a kind of residual current circuit breaker are equipped with arc-extinguish chamber, contact, leakage tripping device, overcurrent trip, the copper cash that is flexible coupling, current transformer, zero sequence current mutual inductor, go up leading-out terminal, operating mechanism, following leading-out terminal in its pedestal.This kind residual current circuit breaker can realize earth leakage protective and overload protection preferably, but its shortcoming is exactly will realize separating brake at ordinary times or close a floodgate all needing manual operation.
The utility model content
The purpose of this utility model provides a kind of good reliability, not fragile, lower-cost electrodynamic type intelligent breaker.The technical scheme that realizes the utility model purpose is: a kind of electrodynamic type intelligent breaker comprises base and middle cover; Be provided with breaker body and the divide-shut brake handle that exposes middle cover in the described base; Cover in described and be provided with the electrodynamic type operating mechanism; Described electrodynamic type operating mechanism comprises motor with output shaft, is subjected to output shaft to drive transmission mechanism and the one-way clutch mechanism that is used to drive the divide-shut brake handle; Described one-way clutch mechanism comprises that relative fixed is arranged on clutch ratchet on the output shaft, is provided with the drive plate in circular clutch hole and is used for driving the clutch part that drive plate rotates under the clutch ratchet effect; The edge of described clutch ratchet evenly is provided with a plurality of clutch ratchets, and an end face of described each clutch ratchet is a drive surface, and the other end is the sliding surface of arc shaped, and described clutch ratchet is arranged in the circular clutch hole of drive plate; The two sides of described drive plate respectively are provided with a spacing hole that is communicated with described clutch hole, described spacing hole direction is set perpendicular to described clutch hole; Described clutch part is the jump ring that is provided with breach, and the spring body at described breach two ends inserts in the spacing hole of described drive plate, and is stuck on the clutch ratchet of the relative two side ends of clutch ratchet.
In the such scheme, described transmission mechanism comprises the connecting rod that an end links to each other with the divide-shut brake handle, and the other end of described connecting rod is rotationally connected by an end of bearing pin and drive plate.
In the such scheme, during described motor forward rotation, its output shaft drives clutch ratchet, and then the drive surface by the clutch ratchet promotes jump ring and rotates around output shaft, described jump ring drives drive plate and rotates around output shaft, and described drive plate drives the action of divide-shut brake handle by transmission mechanism; During described motor backwards rotation, its output shaft drives clutch ratchet, and the sliding surface of described clutch ratchet slips over jump ring, also is that the drive surface of clutch ratchet no longer promotes jump ring.
In the such scheme, a side end face of described drive plate is provided with location notch, and the part spring body of described jump ring is arranged in described location notch.
In the such scheme, described jump ring is the rectangle jump ring, and described breach is positioned at rectangle jump ring center on one side.
In the such scheme, the top of described divide-shut brake handle is provided with fastening bolt, and an end of described connecting rod is provided with mounting hole, and described fastening bolt is positioned at this mounting hole.
The utlity model has positive effect: in (1) the utility model,, can for example only rotate along clockwise direction so that described drive plate only rotates along same direction owing to be provided with one-way clutch mechanism.During motor work, its output shaft drives ratchet and rotates, the part spring body that is stuck on the ratchet of described jump ring is propped up by the drive surface of clutch ratchet, thereby driving jump ring and drive plate rotates, and then, finally drive the divide-shut brake handle and realize the divide-shut brake action by being arranged on the bearing pin drivening rod on drive plate one end.During described motor backwards rotation, its output shaft drives clutch ratchet, and the sliding surface of described clutch ratchet slips over jump ring, also is that the drive surface of clutch ratchet no longer promotes jump ring.Because the one-way clutch mechanism of this structure uniqueness need not to disclose a kind of Leakage Circuit Breaker Dual-Use Switch Rack Device as patent documentation 02284818.5, also independent torch manual converting mechanism will be set separately.In sum, the utlity model has good reliability, not fragile, lower-cost advantage.
(2) in the utility model, a side end face of described drive plate is provided with location notch, and the part spring body of described jump ring is arranged in described location notch, utilizes this location notch location jump ring, makes its fixed-site, can be because of the vibration displacement.
(3) in the utility model, described jump ring is the rectangle jump ring, and described breach is positioned at rectangle jump ring center on one side.When the jump ring of this shape is stretched or replys original shape at its breach, have with drive plate upper limit hole the corresponding to deformation power of direction is set, be particularly suitable for one-way clutch structure of the present utility model.
(4) in the utility model, the top of described divide-shut brake handle is provided with fastening bolt, and an end of described connecting rod is provided with mounting hole, and described fastening bolt is positioned at this mounting hole.The phenomenon that the divide-shut brake handle is damaged by connecting rod can not take place in the translocation that this mounting hole has certain buffering and offsets connecting rod.
Description of drawings
Fig. 1 is a kind of perspective view of the present utility model;
Fig. 2 is a kind of perspective view of hand-movement and motor-driven integrative intelligent breaker shown in Figure 1 after removing loam cake;
Fig. 3 is the explosive view of the electrodynamic type operating mechanism of circuit breaker shown in Figure 1;
Fig. 4 is a kind of structural representation of one-way clutch mechanism in the circuit breaker shown in Figure 1;
Fig. 5 is a kind of perspective view of drive plate in the circuit breaker shown in Figure 1;
Fig. 6 is a kind of perspective view of clutch part in the circuit breaker shown in Figure 1;
Fig. 7 is a kind of structural representation of divide-shut brake indicating mechanism in the circuit breaker shown in Figure 1;
Fig. 8 is the part-structure schematic diagram of divide-shut brake indicating structure shown in Figure 7.
Be labeled as shown in the accompanying drawing: base 1, divide-shut brake handle 11, fastening bolt 111, liquid crystal display screen 12, test button 13, middle cover 2, loam cake 3, electrodynamic type operating mechanism 4, motor 41, output shaft 411, transmission mechanism 42, connecting rod 421, bearing pin 422, mounting hole 423, manual-operating mechanism 5, rotating shaft 51, shifting part 52, securing member 53, one-way clutch mechanism 6, clutch ratchet 61, clutch ratchet 611, drive surface 6111, sliding surface 6112, drive plate 62, clutch hole 621, spacing hole 622, clutch part 63, breach 631, spring body 632, location notch 64, train wheel bridge 65, lower plate 66, divide-shut brake indicating mechanism 7, indicator hole 71, divide-shut brake indication slide card 72, load inclined-plane 721, limited post 73, propelling piece 74, blind hole 741, traveller 742, slide block 743, back-moving spring 75, drive link 76, push rod 761, screw thread spring 762, rubber blanket 763, moving contact 81, fixed contact 82.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 7 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is a kind of perspective view of the present utility model; Fig. 2 is a kind of perspective view of hand-movement and motor-driven integrative intelligent breaker shown in Figure 1 after removing loam cake; Fig. 3 is the explosive view of the electrodynamic type operating mechanism of circuit breaker shown in Figure 1; Fig. 4 is a kind of structural representation of one-way clutch mechanism in the circuit breaker shown in Figure 1; Fig. 5 is a kind of perspective view of drive plate in the circuit breaker shown in Figure 1; Fig. 6 is a kind of perspective view of clutch part in the circuit breaker shown in Figure 1; Fig. 7 is a kind of structural representation of divide-shut brake indicating mechanism in the circuit breaker shown in Figure 1; Fig. 8 is the part-structure schematic diagram of divide-shut brake indicating structure shown in Figure 7.
Present embodiment is a kind of hand-movement and motor-driven integrative intelligence residual current circuit breaker, sees Fig. 1 to Fig. 7, comprises base 1, middle cover 2 and loam cake 3; Be provided with breaker body and the divide-shut brake handle 11 that exposes middle cover 2 in the described base 1; Described middle cover 2 is provided with electrodynamic type operating mechanism 4, and described loam cake 3 is provided with manual-operating mechanism 5; Described electrodynamic type operating mechanism 4 comprises motor 41 with output shaft 411, is subjected to output shaft 411 to drive transmission mechanism 42 and the one-way clutch mechanism 6 that is used to drive divide-shut brake handle 11.
See Fig. 2 to Fig. 6, described one-way clutch mechanism 6 comprises that relative fixed is arranged on clutch ratchet 61 on the output shaft 411, is provided with the drive plate 62 in circular clutch hole 621 and is used for driving the clutch part 63 that drive plate 62 rotates under 61 effects of clutch ratchet; The edge of described clutch ratchet evenly is provided with a plurality of clutch ratchets 611, and an end face of described each clutch ratchet 611 is drive surface 6111, and the other end is the sliding surface 6112 of arc shaped, and described clutch ratchet is arranged in the circular clutch hole 621 of drive plate 62; The two sides of described drive plate 62 respectively are provided with a spacing hole 622 that is communicated with described clutch hole 621, described spacing hole 622 direction is set perpendicular to described clutch hole 621; Described clutch part 63 is the jump rings that are provided with breach 631, and the spring body 632 at described breach 631 two ends inserts in the spacing hole 622 of described drive plate 62, and is stuck on the clutch ratchet 611 of clutch ratchet 61 relative two side ends.
See Fig. 3, in addition, for spacing clutch ratchet 61, also be provided with train wheel bridge 65 at drive plate 62 upper surfaces, be provided with lower plate 66 at drive plate 62 lower surfaces, described train wheel bridge 65 and lower plate 66 block the both ends open up and down in clutch hole 621 on the drive plate 62, effectively spacing firmly clutch ratchet 61.
See Fig. 2, described transmission mechanism 42 comprises the connecting rod 421 that an end links to each other with divide-shut brake handle 11, and the other end of described connecting rod 421 is rotationally connected by the end of bearing pin 422 with drive plate 62.
See Fig. 2, described manual-operating mechanism 5 comprises the rotating shaft 51 that is arranged on the loam cake 3, be arranged on being used on rotating shaft 51 medial extremitys drives the shifting part 52 that bearing pin rotates and is arranged on securing member 53 on rotating shaft 51 outboard ends.
During described motor 41 forward rotation, its output shaft 411 drives clutch ratchet 61, and then the drive surface by clutch ratchet 611 6111 promotes jump rings 63 and rotates around output shaft 411, described jump ring 63 drives drive plate 62 and rotates around output shaft 411, and described drive plate 62 drives 11 actions of divide-shut brake handle by transmission mechanism 42.
During described motor 41 backwards rotation, its output shaft 411 drives clutch ratchets 61, and the sliding surface 6112 of described clutch ratchet 611 slips over jump ring 63, also is that the drive surface 6111 of clutch ratchet 611 no longer promotes jump ring 63.
After described motor 41 stalls, securing member 53 drives shifting part 52 by rotating shaft 51 under external force and rotates, described shifting part 52 is stirred bearing pin 422 and is rotated around motor 41 output shafts 411, described bearing pin 422 synchronous drivening rod 421 and drive plates 62, drive plate 62 drive jump rings 63 slip over clutch ratchet 61 along the sliding surface 6112 of clutch ratchet 611, and described connecting rod 421 drives 11 actions of divide-shut brake handles.
See Fig. 5, a side end face of described drive plate 62 is provided with location notch 64, and the part spring body of described jump ring is arranged in described location notch 64.In the present embodiment, described jump ring is the rectangle jump ring, and described breach 631 is positioned at rectangle jump ring center on one side.
See Fig. 2, the top of described divide-shut brake handle 11 is provided with fastening bolt 111, and an end of described connecting rod 421 is provided with mounting hole 423, and described fastening bolt is positioned at this mounting hole 423.
See Fig. 7 and Fig. 8, described loam cake 3 is provided with divide-shut brake indicating mechanism 7, described divide-shut brake indicating mechanism 7 comprises the indicator hole 71 that is arranged on the loam cake 3, be arranged on divide-shut brake indication slide card 72 on loam cake 3 inwalls, be used for spacing slide card glide direction limited post 73, the propelling piece 74 that is used to promote to indicate slide card to slide, be used to the indication slide card that the back-moving spring 75 of reseting elasticity is provided and pass middle cover 2 be used for drive the drive link 76 that the indication slide cards slide along with moving contact 81 moves and then promotes described propelling piece 74.Described drive link 76 comprises push rod 761, screw thread spring 762 and is arranged on the rubber blanket 763 of push rod 761 bottoms, and described rubber blanket is against on the moving contact 81, and described screw thread spring 762 is arranged on the top of push rod 761 and exceeds push rod 761; Described propelling piece 74 is provided with blind hole 741 at its side near middle cover 2, and the top of described push rod 761 and screw thread spring 762 are arranged in the blind hole 741 of propelling piece 74.
Described propelling piece 74 comprises the traveller 742 that is fixed on loam cake 3 inwalls and the slide block 743 that can slide along described traveller 742, described blind hole 741 is arranged on the side near middle cover 2 of slide block 743, and described slide block 743 can slide by drive link 76 jack-up and along traveller 742.
One end of described indication slide card is provided with load inclined-plane 721, side end face away from described middle cover 2 of described propelling piece 74 is the inclined-planes that match with these load inclined-plane 721 shapes, described propelling piece 74 is when being driven by drive link 76, the load inclined-plane 721 of roof pressure indication slide card that makes progress, its inclined-plane, and then promote the indication slide card and slide along the spacing direction of limited post 73; Described indication slide card is provided with separating brake indicator and combined floodgate indicator, on the described separating brake indicator with " branch " word, with " closing " word, described indication slide card is in sliding process on the described combined floodgate indicator, and the indicator hole 71 that covers is passed through in described separating brake indicator and combined floodgate indicator.
In the present embodiment, described loam cake 3 is provided with liquid crystal display screen 12 and test button 13, cooperates correspondent control circuits, can reach real-time monitoring, fault alarm, failure logging, intelligence inquire, online function such as upload.
Present embodiment has positive effect: in (1) present embodiment, owing to be provided with one-way clutch mechanism, can for example only rotate along clockwise direction so that described drive plate only rotates along same direction.During motor work, its output shaft drives ratchet and rotates, the part spring body that is stuck on the ratchet of described jump ring is propped up by the drive surface of clutch ratchet, thereby driving jump ring and drive plate rotates, and then, finally drive the divide-shut brake handle and realize the divide-shut brake action by being arranged on the bearing pin drivening rod on drive plate one end.During described motor 41 backwards rotation, its output shaft 411 drives clutch ratchets 61, and the sliding surface 6112 of described clutch ratchet 611 slips over jump ring 63, also is that the drive surface 6111 of clutch ratchet 611 no longer promotes jump ring 63.Because the one-way clutch mechanism of this structure uniqueness need not to disclose a kind of Leakage Circuit Breaker Dual-Use Switch Rack Device as patent documentation 02284818.5, also independent torch manual converting mechanism will be set separately.In sum, present embodiment has good reliability, not fragile, lower-cost advantage.
(2) in the present embodiment, a side end face of described drive plate is provided with location notch, and the part spring body of described jump ring is arranged in described location notch, utilizes this location notch location jump ring, makes its fixed-site, can be because of the vibration displacement.
(3) in the present embodiment, described jump ring is the rectangle jump ring, and described breach is positioned at rectangle jump ring center on one side.When the jump ring of this shape is stretched or replys original shape at its breach, have with drive plate upper limit hole the corresponding to deformation power of direction is set, be particularly suitable for the one-way clutch structure of present embodiment.
(4) in the present embodiment, the top of described divide-shut brake handle is provided with fastening bolt, and an end of described connecting rod is provided with mounting hole, and described fastening bolt is positioned at this mounting hole.The phenomenon that the divide-shut brake handle is damaged by connecting rod can not take place in the translocation that this mounting hole has certain buffering and offsets connecting rod.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (6)
1. an electrodynamic type intelligent breaker comprises base (1) and middle cover (2); Be provided with breaker body and the divide-shut brake handle (11) that exposes middle cover (2) in the described base (1); Described middle cover (2) is provided with electrodynamic type operating mechanism (4); It is characterized in that: described electrodynamic type operating mechanism (4) comprise have output shaft (411) motor (41), driven by output shaft (411) to be used to drive the transmission mechanism (42) and the one-way clutch mechanism (6) of divide-shut brake handle (11); Described one-way clutch mechanism (6) comprises that relative fixed is arranged on clutch ratchet (61) on the output shaft (411), is provided with the drive plate (62) in circular clutch hole (621) and is used for driving down in clutch ratchet (61) effect the clutch part (63) of drive plate (62) rotation;
The edge of described clutch ratchet (61) evenly is provided with a plurality of clutch ratchets (611), one end face of described each clutch ratchet (611) is drive surface (6111), the other end is the sliding surface (6112) of arc shaped, and described clutch ratchet is arranged in the circular clutch hole (621) of drive plate (62);
The two sides of described drive plate (62) respectively are provided with a spacing hole (622) that is communicated with described clutch hole (621), described spacing hole (622) direction is set perpendicular to described clutch hole (621);
Described clutch part (63) is the jump ring that is provided with breach (631), and the spring body (632) at described breach (631) two ends inserts in the spacing hole (622) of described drive plate (62), and is stuck on the clutch ratchet (611) of the relative two side ends of clutch ratchet (61).
2. electrodynamic type intelligent breaker according to claim 1, it is characterized in that: described transmission mechanism (42) comprises the connecting rod (421) that an end links to each other with divide-shut brake handle (11), and the other end of described connecting rod (421) is rotationally connected by the end of bearing pin (422) with drive plate (62).
3. electrodynamic type intelligent breaker according to claim 2, it is characterized in that: during described motor (41) forward rotation, its output shaft (411) drives clutch ratchet (61), and then the drive surface (6111) by clutch ratchet (611) promotes jump ring (63) and rotates around output shaft (411), described jump ring (63) drives drive plate (62) and rotates around output shaft (411), and described drive plate (62) drives divide-shut brake handle (11) action by transmission mechanism (42);
During described motor (41) backwards rotation, its output shaft (411) drives clutch ratchet (61), and the sliding surface (6112) of described clutch ratchet (611) slips over jump ring (63), also is that the drive surface (6111) of clutch ratchet (611) no longer promotes jump ring (63).
4. electrodynamic type intelligent breaker according to claim 1 is characterized in that: a side end face of described drive plate (62) is provided with location notch (64), and the part spring body of described jump ring is arranged in described location notch (64).
5. electrodynamic type intelligent breaker according to claim 1 is characterized in that: described jump ring is the rectangle jump ring, and described breach (631) is positioned at rectangle jump ring center on one side.
6. electrodynamic type intelligent breaker according to claim 1, it is characterized in that: the top of described divide-shut brake handle (11) is provided with fastening bolt (111), one end of described connecting rod (421) is provided with mounting hole (423), and described fastening bolt (111) is positioned at this mounting hole (423).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202952088U CN201910377U (en) | 2010-08-13 | 2010-08-13 | Electric type intelligent circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202952088U CN201910377U (en) | 2010-08-13 | 2010-08-13 | Electric type intelligent circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910377U true CN201910377U (en) | 2011-07-27 |
Family
ID=44302577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202952088U Expired - Lifetime CN201910377U (en) | 2010-08-13 | 2010-08-13 | Electric type intelligent circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201910377U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916693A (en) * | 2010-08-13 | 2010-12-15 | 乐清市公认电气有限公司 | Electrodynamic type intelligent breaker |
| CN103311058A (en) * | 2013-05-10 | 2013-09-18 | 长城电器集团有限公司 | Operating mechanism of electricity leakage reclosure circuit breaker |
-
2010
- 2010-08-13 CN CN2010202952088U patent/CN201910377U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916693A (en) * | 2010-08-13 | 2010-12-15 | 乐清市公认电气有限公司 | Electrodynamic type intelligent breaker |
| CN101916693B (en) * | 2010-08-13 | 2015-07-08 | 乐清市公认电气有限公司 | Electrodynamic type intelligent breaker |
| CN103311058A (en) * | 2013-05-10 | 2013-09-18 | 长城电器集团有限公司 | Operating mechanism of electricity leakage reclosure circuit breaker |
| CN103311058B (en) * | 2013-05-10 | 2015-07-22 | 长城电器集团有限公司 | Operating mechanism of electricity leakage reclosure circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101916692B (en) | A kind of breaker of plastic casing with switch-on/switch-off indicating mechanism | |
| CN201796838U (en) | Manual and electric integrated intelligent circuit breaker | |
| CN101916693A (en) | Electrodynamic type intelligent breaker | |
| CN203588949U (en) | Breaker opening and closing operation apparatus | |
| CN201910377U (en) | Electric type intelligent circuit breaker | |
| CN203398051U (en) | Manual or electric closing device of residual-current circuit breaker | |
| CN204706946U (en) | A kind of double power supply automatic transfer switch | |
| CN102290690A (en) | leakage protection socket | |
| CN108054056A (en) | A kind of breaker for facilitating installation | |
| CN201138646Y (en) | Electricity driving leakage breaker | |
| CN206460920U (en) | A kind of accident indicator of miniature circuit breaker | |
| CN203277246U (en) | Miniature circuit breaker with default and tripping indication device | |
| CN207409390U (en) | Breaker type fire pump mechanical emergency starter | |
| CN203277268U (en) | Miniature circuit breaker with fast closing device | |
| CN206774469U (en) | A kind of double power supply automatic transfer switch | |
| CN202650882U (en) | A rack of grounding switches | |
| CN201904275U (en) | Hand-operated opening mechanism for permanent magnetic vacuum circuit breaker | |
| CN212751189U (en) | Anti-drop type high voltage power line grounding wire based on thing networking is reported an emergency and asked for help or increased vigilance | |
| CN101657869B (en) | Over running clutch for a direct drive motor operator | |
| CN201527942U (en) | Emergency opening circuit breaker | |
| CN206893573U (en) | The automatic switching control equipment of double power supply automatic transfer switch | |
| CN112701015A (en) | Switch fault detection and restoration equipment | |
| CN202678249U (en) | Remote control system of residual current circuit breaker | |
| CN201522979U (en) | Crank-type dual-purpose closing device of residual current circuit breaker | |
| CN2919497Y (en) | Control mechanism for outdoor high voltage circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110727 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |