CN205230988U - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- CN205230988U CN205230988U CN201521087614.4U CN201521087614U CN205230988U CN 205230988 U CN205230988 U CN 205230988U CN 201521087614 U CN201521087614 U CN 201521087614U CN 205230988 U CN205230988 U CN 205230988U
- Authority
- CN
- China
- Prior art keywords
- snap close
- lever
- tripping
- circuit breaker
- axle body
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Breakers (AREA)
Abstract
The utility model relates to a breaker, including shell, moving contact, static contact, operating device, operating device including operating handle, lever, jump buckle, hasp, connecting rod, operating handle and outer shell hinged set up, operating handle is connected through the connecting rod between detaining with jumping, is equipped with the second axle body, third axis body on the lever, jumps the retaining ring and establishes on the second axle body, the movable contact headgear is established on the third axis body, is equipped with the bayonet socket on the hasp, jumps to buckle corresponding bayonet socket position and be equipped with the fixture block, jumps to buckle to be equipped with to be used for when closing a floodgate and the circular -arc transmission piece of hasp conflict. The present invention uses the technical scheme, the utility model provides a breaker can significantly reduce when closing a floodgate and jump the frictional force between knot and the hasp, prolongs its life, and, can control the area that intraoral angle of card and card income are gone into to the fixture block card effectively to guarantee that the working property of breaker when closing a floodgate is more stable.
Description
Technical field
The utility model relates to a kind of circuit breaker.
Background technology
Existing circuit breaker, includes shell, moving contact, fixed contact, for controlling the operating mechanism of moving contact and fixed contact switching, for the electromagnetic release mechanism disconnected at short circuit time control braking contact, fixed contact, for the thermal tripping mechanism disconnected at overload time control braking contact, fixed contact, wherein, operating mechanism includes operating grip, lever, tripping, snap close, connecting rod, described operating grip and housing hinge are arranged, the first axle body is provided with in shell, described lever, snap close is set on the first axle body, be connected through connecting rod between operating grip with tripping, lever is provided with the second axle body, three-axis body, described tripping is set in and the second axle body is formed the hinged of tripping and lever, moving contact is set in and three-axis body is formed the hinged of moving contact and lever, snap close is provided with bayonet socket, in tripping, corresponding bayonet socket position is provided with fixture block, operating mechanism also includes the first back-moving spring for reset operation handle, for the second back-moving spring of restoring lever, for the 3rd back-moving spring of reset lock, for the 4th back-moving spring of the moving contact that resets.During combined floodgate, rotating operation handle, drives tripping to swing by connecting rod, and tripping promotes snap close and swings, and the fixture block in tripping snaps in the bayonet socket on snap close, moving contact and fixed contact conducting.
But, the circuit breaker of this structure, when closing a floodgate, for face contacts between tripping with snap close, its contact-making surface is large, and wearing and tearing are large, and useful life is short; And it can not control the size that fixture block snaps in the angle in bayonet socket and snaps in well.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, the utility model provides a kind of circuit breaker, can greatly reduce the frictional force between tripping and snap close, extending its useful life when closing a floodgate; And, effectively can control the area that fixture block snaps in the angle in bayonet socket and snaps in, thus ensure that the service behaviour of circuit breaker when closing a floodgate is more stable.
The technical solution of the utility model: a kind of circuit breaker, include shell, moving contact, fixed contact, for controlling the operating mechanism of moving contact and fixed contact switching, for the electromagnetic release mechanism disconnected at short circuit time control braking contact, fixed contact, for the thermal tripping mechanism disconnected at overload time control braking contact, fixed contact, wherein, operating mechanism includes operating grip, lever, tripping, snap close, connecting rod, described operating grip and housing hinge are arranged, the first axle body is provided with in shell, described lever, snap close is set on the first axle body, be connected through connecting rod between operating grip with tripping, lever is provided with the second axle body, three-axis body, described tripping is set in and the second axle body is formed the hinged of tripping and lever, moving contact is set in and three-axis body is formed the hinged of moving contact and lever, snap close is provided with bayonet socket, in tripping, corresponding bayonet socket position is provided with fixture block, operating mechanism also includes the first back-moving spring for reset operation handle, for the second back-moving spring of restoring lever, for the 3rd back-moving spring of reset lock, for the 4th back-moving spring of the moving contact that resets, it is characterized in that: described tripping is provided with for when closing a floodgate and the snap close arc-shaped drive block of conflicting.
Adopt technique scheme, by the arc-shaped drive block arranged, when closing a floodgate, forming linear contact lay between the drive block in snap close and tripping, thus the frictional force between tripping and snap close can be greatly reduced, extending its useful life; And we can by changing the radian size of arc-shaped drive block, thus effectively can control the area that fixture block snaps in the angle in bayonet socket and snap in, thus ensure that the service behaviour of circuit breaker when closing a floodgate is more stable.
Further setting of the present utility model: the upper surface of described lever is provided with the indicator for showing breaker closing, gate-dividing state, on shell, position, corresponding indicator is provided with observation panel.
Adopt above-mentioned further setting, by being set directly on lever by indicator, structure is simple, can be directly acquainted with the running status of circuit breaker, use convenient from observation panel.
Setting further more of the present utility model: the upper end of described lever is provided with the first location notch, the second location notch is provided with in shell, conflicting with the bottom of the first location notch, the bottom of the second location notch respectively in the two ends of the second back-moving spring, is also provided with the retaining convex rib for preventing the second back-moving spring from departing from the first location notch in the first described location notch.
Adopt and above-mentionedly to arrange further again, second back-moving spring is arranged between the upper end of lever and shell, the arm of force produced when lever rotates around the first axle body due to lever upper end is the longest, therefore the restoring force of the second back-moving spring can be made maximum, thus making circuit breaker energy quick acting switching-off, service behaviour is better; This second back-moving spring mounting means, it is firm to locate, and can not come off.
Further setting more of the present utility model: the sidewall of described the second axle body is provided with annular boss, and annular boss is positioned at inside the outline of tripping, and described tripping and annular boss are conflicted.
Adopt and above-mentionedly further to arrange again, the annular boss of setting can make tripping not need directly to contact with lever, substantially reduces contact-making surface, thus reduces frictional force, effectively improve the movement velocity of tripping; And annular boss can strengthen the intensity of the second axle body, extend its useful life.
Further setting more of the present utility model: described electromagnetic release mechanism includes push rod, for controlling the flexible coil windings of push rod, on described snap close, corresponding mandril position has installed stress surface, described snap close is that plastics are made, the first axle body is that metal material is made, and snap close is directly set on the first axle body.
Adopt and above-mentionedly further to arrange again, the stress surface on snap close, can prevent from promoting to produce distortion when snap close swings at push rod; This snap close, the first axle body set-up mode, make snap close easier for installation, and the frictional force between snap close and the first axle body is little, and snap close can Rapid reset, threads off quicker with tripping.
Of the present utility modelly further to arrange again: described snap close is positioned at lever side and is provided with spacing block set, on lever, corresponding spacing block set side is provided with stopper slot, snap close is also provided with for when separating brake and the moving contact spacing preiection of conflicting.
Adopt and above-mentionedly further to arrange again, the spacing block set of setting, stopper slot and spacing preiection, can limit the moving displacement of snap close well by lever and moving contact,
Of the present utility modelly further to arrange again: described thermal tripping mechanism includes bimetal leaf, gangbar, and described snap close is provided with jack, and described gangbar one end is plugged in jack, and the other end is conflicted on bimetal leaf and the opposing side of snap close.
Adopt and above-mentionedly further to arrange again, effectively can control the range of movement of snap close and bimetal leaf, can snap close be pulled to make the fixture block in tripping depart from bayonet socket on snap close by gangbar well after bimetal leaf is heated, thread off more stable, reliable.
Of the present utility modelly further to arrange again: described moving contact is provided with the indicating grooves being used to indicate bimetal leaf installation site, for being " S " type with fixed contact conducting one end on described moving contact.
Adopt and above-mentionedly further to arrange again, the indicating grooves of setting, to the preset position Primary Location of bimetal leaf, can be convenient to the installation of bimetal leaf; On moving contact, the end of " S " type can produce electric repulsion with fixed contact in logical big current process, is conducive to the quick disjunction of electric arc, improves arc extinction performance.
Further setting more of the present utility model: be also provided with input terminal, outlet terminal in described shell, input terminal is connected with electromagnetic release mechanism, outlet terminal is connected with bimetal leaf, is provided with the first positioning chamber inserted for input terminal, the second positioning chamber inserted for outlet terminal in shell.
Adopt and above-mentionedly further to arrange again, this input terminal, outlet terminal mounting means, positioning stablity, install, convenient disassembly.
Further setting more of the present utility model: described input terminal, outlet terminal are also provided with the connection jaws for connecting bus-bar.
Adopt and above-mentionedly further to arrange again, the connection jaws of setting, can conveniently be connected with bus-bar, and the scope of application is wider, connects convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is the internal structure schematic diagram of the utility model specific embodiment;
Operating structure structural representation when Fig. 3 is the utility model specific embodiment separating brake;
Operating structure structural representation when Fig. 4 is the utility model specific embodiment combined floodgate;
Fig. 5 is the structural representation of lever reverse side in the utility model specific embodiment;
Fig. 6 is the structural representation in lever front in the utility model specific embodiment;
Fig. 7 is tripping structural representation in the utility model specific embodiment;
Fig. 8 is buckle structure schematic diagram in the utility model specific embodiment;
Fig. 9 is the utility model specific embodiment housing structural representation;
Figure 10 is the input terminal structural representation not with bus-bar connection jaws in the utility model specific embodiment;
Figure 11 is the outlet terminal structural representation not with bus-bar connection jaws in the utility model specific embodiment;
Figure 12 is the input terminal structural representation with bus-bar connection jaws in the utility model specific embodiment;
Figure 13 is the outlet terminal structural representation with bus-bar connection jaws in the utility model specific embodiment.
Embodiment
As shown in figures 1-13, a kind of circuit breaker, include shell 1, moving contact 2, fixed contact 3, for controlling the operating mechanism 4 of moving contact 2 and fixed contact 3 switching, for the electromagnetic release mechanism 5 disconnected at short circuit time control braking contact 2, fixed contact 3, for the thermal tripping mechanism 6 in overload time control braking contact 2, fixed contact 3 disconnection, wherein, operating mechanism 4 includes operating grip 41, lever 42, tripping 43, snap close 44, the connecting rod 45 of " U " font, jointed shaft 46 is provided with in shell 1, described operating grip 41 is set in hinged setting jointed shaft 46 being formed operating grip 41 and shell 1, the first axle body 47 is provided with in shell 1, described lever 42, snap close 44 is set on the first axle body 47 and forms lever 42, snap close 44 is hinged with shell 1, be connected through connecting rod 45 between operating grip 41 with tripping 43, lever 42 is integrally formed with the second axle body 48, three-axis body 49, the second axle body 48, three-axis body 49 is just laying respectively at lever 42, on reverse side, three-axis body 49 is positioned at below the second axle body 48, the first axle body 47 is positioned at the second axle body 48, between three-axis body 49, described tripping 43 is set in and the second axle body 48 is formed the hinged of tripping 43 and lever 42, moving contact 2 is set in and three-axis body 49 is formed the hinged of moving contact 2 and lever 42, snap close 44 is provided with bayonet socket 441, in tripping 43, corresponding bayonet socket 441 position is provided with fixture block 431, operating mechanism 4 also includes the first back-moving spring 410 for reset operation handle 41, for the second back-moving spring 411 of restoring lever 42, for the 3rd back-moving spring 412 of reset lock 44, for the 4th back-moving spring 413 of the moving contact 2 that resets, described tripping 43 is provided with for when closing a floodgate and the snap close 44 arc-shaped drive block 432 of conflicting, by the arc-shaped drive block 432 arranged, drive block 432 is positioned at above fixture block 431, when closing a floodgate, linear contact lay is formed between drive block 432 in snap close 44 and tripping 43, thus the frictional force that can greatly reduce between tripping 43 and snap close 44, extend its useful life, and we can by changing the radian size of arc-shaped drive block 432, thus effectively can control the area that fixture block 431 snaps in the angle in bayonet socket 441 and snap in, thus ensure that the service behaviour of circuit breaker when closing a floodgate is more stable.
In the utility model specific embodiment, the upper surface of described lever 42 is provided with the indicator 421 for showing breaker closing, gate-dividing state, and on shell 1, position, corresponding indicator 421 is provided with observation panel 11.By being set directly on lever 42 by indicator 421, structure is simple, can be directly acquainted with the running status of circuit breaker from observation panel 11, use convenient, during use, can arrange red-ticket respectively represent separating brake in indicator 421, green-ticket representative is closed a floodgate.
In the utility model specific embodiment, the upper end of described lever 42 is provided with the first location notch 422, the second location notch 12 is provided with in shell 1, the two ends of the second back-moving spring 411 respectively with the bottom of the first location notch 422, conflict in the bottom of the second location notch 12, the retaining convex rib 4221 for preventing the second back-moving spring 411 from departing from the first location notch 422 is also provided with in the first described location notch 422, second back-moving spring 411 is arranged between the upper end of lever 42 and shell 1, the arm of force produced when lever 42 rotates around the first axle body 47 due to lever 42 upper end is the longest, therefore the restoring force of the second back-moving spring 411 can be made maximum, thus make circuit breaker energy quick acting switching-off, service behaviour is better, this second back-moving spring 411 mounting means, it is firm to locate, and can not come off.First back-moving spring 410 is arranged in operating grip 41, and its two ends and shell 1, operating grip 41 are conflicted; On snap close 44, corresponding the first axle body 47 receptacle location is provided with positioning boss 442, the 3rd described back-moving spring 412 winding is on positioning boss 442, lever 42 is provided with the first draw-in groove 423, snap close 44 is provided with the second draw-in groove the 443, three back-moving spring 412 two ends and is stuck in the first draw-in groove 423, second draw-in groove 443; 4th back-moving spring 413 winding is on three-axis body 49, and lever 42 is provided with the 3rd draw-in groove the 424, four back-moving spring 413 one end and is stuck in the 3rd draw-in groove 424, and the other end is conflicted on moving contact 2.
Arc control device 7 are provided with in shell 1, described fixed contact 3 is provided with arc striking piece 8, is provided with arc leading angle 9 between arc striking piece 8 and fixed contact 3, is provided with magnetic sheet 10 in arc leading angle 9, the electric arc produced between moving contact 2 and fixed contact 3 can be made like this to enter more fast in arc control device, improve arc extinction performance.
In the utility model specific embodiment, the sidewall of described the second axle body 48 is provided with annular boss 481, annular boss 481 is positioned at inside the outline of tripping 43, described tripping 43 is conflicted with annular boss 481, the annular boss 481 arranged can make tripping 43 not need directly to contact with lever 42, substantially reduce contact-making surface, thus reduce frictional force, effectively improve the movement velocity of tripping 43; And annular boss 481 can strengthen the intensity of the second axle body 48, extend its useful life.
Described electromagnetic release mechanism 5 includes determines push rod 51, for controlling to determine the flexible coil windings 52 of push rod 51, correspondingly on described snap close 44 determine push rod 51 position and be provided with stress surface 444, described snap close 44 is made for plastics, the first axle body 47 is made for metal material, snap close 44 is directly set on the first axle body 47, stress surface 444 on snap close 44, can prevent determine push rod 51 promote when snap close 44 swings produce distortion; This snap close 44, the first axle body 47 set-up mode, make snap close 44 easier for installation, the frictional force between snap close 44 and the first axle body 47 is little, and snap close 44 can Rapid reset, threads off quicker with tripping 43.
In the utility model specific embodiment, described snap close 44 is positioned at lever 42 side and is provided with spacing block set 445, on lever 42, corresponding spacing block set 445 side is provided with stopper slot 425, snap close 44 is also provided with for when separating brake and moving contact 2 spacing preiection 446 of conflicting, the spacing block set 445 arranged, stopper slot 425 and spacing preiection 446, the moving displacement of snap close 44 can be limited well by lever 42 and moving contact 2
Described thermal tripping mechanism 6 includes bimetal leaf 61, gangbar 62, and described snap close 44 is provided with jack 447, and described gangbar 62 one end is plugged in jack 447, and the other end is conflicted on the opposing side of bimetal leaf 61 and snap close 44.Effectively can control the range of movement of snap close 44 and bimetal leaf 61 like this, can snap close 44 be pulled to make the fixture block 431 in tripping 43 depart from bayonet socket 441 on snap close 44 by gangbar 62 well after bimetal leaf 61 is heated, thread off more stable, reliable.
In the utility model specific embodiment, described moving contact 2 is provided with the indicating grooves 21 being used to indicate bimetal leaf 61 installation site, for being " S " type with fixed contact 3 conducting one end 22 on described moving contact 2, the indicating grooves 21 arranged, to the preset position Primary Location of bimetal leaf 61, the installation of bimetal leaf 61 can be convenient to; On moving contact 2, the end of " S " type can produce electric repulsion with fixed contact 3 in logical big current process, is conducive to the quick disjunction of electric arc, improves arc extinction performance.
Input terminal 13, outlet terminal 14 is also provided with in described shell 1, input terminal 13 is connected with electromagnetic release mechanism 5, outlet terminal 14 is connected with bimetal leaf 61, the first positioning chamber 111 inserted for input terminal 13, the second positioning chamber 112 inserted for outlet terminal 14 is provided with in shell 1, in order to can conveniently input terminal 13, outlet terminal 14 be connected with bus-bar, we can arrange the connection jaws 15 for connecting bus-bar on described input terminal 13, outlet terminal 14.
During combined floodgate, rotating operation handle 41, formation lock fit in the bayonet socket 441 that connecting rod 45 pulls tripping 43 to swing to make the fixture block 431 in tripping 43 snap on snap close 44, tripping 43, snap close 44, lever 42 can not freely rotate, now, second back-moving spring 411 compresses, moving contact 2 and fixed contact 3 conducting.During manual brake separating, make the fixture block 431 in tripping 43 depart from bayonet socket 441 on snap close 44 by operating grip 41, lever 42 resets under the effect of the second back-moving spring 411, and moving contact 2 and fixed contact 3 are disconnected; During short circuit, coil windings 52 controls determine push rod 51 and to eject, and promote snap close 44 and swing and make the fixture block 431 in tripping 43 depart from bayonet socket 441 on snap close 44, lever 42 resets under the effect of the second back-moving spring 411, and moving contact 2 and fixed contact 3 are disconnected; During overload, electric current increases, and bimetal leaf 61 generates heat and is out of shape, snap close 44 is pulled to swing through gangbar 62, make the fixture block 431 in tripping 43 depart from bayonet socket 441 on snap close 44, lever 42 resets under the effect of the second back-moving spring 411, and moving contact 2 and fixed contact 3 are disconnected.
Claims (10)
1. a circuit breaker, includes shell, moving contact, fixed contact, for controlling the operating mechanism of moving contact and fixed contact switching, for the electromagnetic release mechanism disconnected at short circuit time control braking contact, fixed contact, for the thermal tripping mechanism disconnected at overload time control braking contact, fixed contact, wherein, operating mechanism includes operating grip, lever, tripping, snap close, connecting rod, described operating grip and housing hinge are arranged, the first axle body is provided with in shell, described lever, snap close is set on the first axle body, be connected through connecting rod between operating grip with tripping, lever is provided with the second axle body, three-axis body, described tripping is set in and the second axle body is formed the hinged of tripping and lever, moving contact is set in and three-axis body is formed the hinged of moving contact and lever, snap close is provided with bayonet socket, in tripping, corresponding bayonet socket position is provided with fixture block, operating mechanism also includes the first back-moving spring for reset operation handle, for the second back-moving spring of restoring lever, for the 3rd back-moving spring of reset lock, for the 4th back-moving spring of the moving contact that resets, it is characterized in that: described tripping is provided with for when closing a floodgate and the snap close arc-shaped drive block of conflicting.
2. circuit breaker according to claim 1, is characterized in that: the upper surface of described lever is provided with the indicator for showing breaker closing, gate-dividing state, and on shell, position, corresponding indicator is provided with observation panel.
3. circuit breaker according to claim 1 and 2, it is characterized in that: the upper end of described lever is provided with the first location notch, the second location notch is provided with in shell, conflicting with the bottom of the first location notch, the bottom of the second location notch respectively in the two ends of the second back-moving spring, is also provided with the retaining convex rib for preventing the second back-moving spring from departing from the first location notch in the first described location notch.
4. circuit breaker according to claim 3, is characterized in that: the sidewall of described the second axle body is provided with annular boss, and annular boss is positioned at inside the outline of tripping, and described tripping and annular boss are conflicted.
5. the circuit breaker according to claim 1 or 2 or 4, it is characterized in that: described electromagnetic release mechanism includes push rod, for controlling the flexible coil windings of push rod, on described snap close, corresponding mandril position has installed stress surface, described snap close is that plastics are made, the first axle body is that metal material is made, and snap close is directly set on the first axle body.
6. circuit breaker according to claim 5, is characterized in that: described snap close is positioned at lever side and is provided with spacing block set, and on lever, corresponding spacing block set side is provided with stopper slot, snap close is also provided with for when separating brake and the moving contact spacing preiection of conflicting.
7. the circuit breaker according to claim 1 or 2 or 4 or 6, it is characterized in that: described thermal tripping mechanism includes bimetal leaf, gangbar, described snap close is provided with jack, and described gangbar one end is plugged in jack, and the other end is conflicted on bimetal leaf and the opposing side of snap close.
8. circuit breaker according to claim 7, is characterized in that: described moving contact is provided with the indicating grooves being used to indicate bimetal leaf installation site, for being " S " type with fixed contact conducting one end on described moving contact.
9. circuit breaker according to claim 7, it is characterized in that: in described shell, be also provided with input terminal, outlet terminal, input terminal is connected with electromagnetic release mechanism, outlet terminal is connected with bimetal leaf, is provided with the first positioning chamber inserted for input terminal, the second positioning chamber inserted for outlet terminal in shell.
10. circuit breaker according to claim 9, is characterized in that: described input terminal, outlet terminal are also provided with the connection jaws for connecting bus-bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087614.4U CN205230988U (en) | 2015-12-23 | 2015-12-23 | Breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087614.4U CN205230988U (en) | 2015-12-23 | 2015-12-23 | Breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230988U true CN205230988U (en) | 2016-05-11 |
Family
ID=55906034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087614.4U Withdrawn - After Issue CN205230988U (en) | 2015-12-23 | 2015-12-23 | Breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428171A (en) * | 2015-12-23 | 2016-03-23 | 温州东极电气有限公司 | Breaker |
| CN108417459A (en) * | 2018-05-03 | 2018-08-17 | 首瑞（天津）电气设备有限公司 | A kind of operating mechanism and breaker of breaker |
-
2015
- 2015-12-23 CN CN201521087614.4U patent/CN205230988U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428171A (en) * | 2015-12-23 | 2016-03-23 | 温州东极电气有限公司 | Breaker |
| CN108417459A (en) * | 2018-05-03 | 2018-08-17 | 首瑞（天津）电气设备有限公司 | A kind of operating mechanism and breaker of breaker |
| CN108417459B (en) * | 2018-05-03 | 2023-10-31 | 首瑞（天津）电气设备有限公司 | Operating mechanism of circuit breaker and circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105428171A (en) | Breaker | |
| CN104319203B (en) | Circuit breaker operation mechanism | |
| CN106098485B (en) | A kind of breaker | |
| CN205911269U (en) | Breaker | |
| CN205230988U (en) | Breaker | |
| WO2012122862A1 (en) | Fuse device | |
| CN102243953A (en) | Plastic shell type low-voltage circuit breaker | |
| CN201673872U (en) | Plastic casing type low voltage circuit breaker | |
| CN204103083U (en) | For coupling assembling, the plug and socket of the charging device of electric motor car | |
| CN102723229B (en) | Manual operation mechanism of outdoor permanent magnetic high-voltage vacuum circuit breaker | |
| US20140043116A1 (en) | Switch Linkage Mechanism and Large Current Breaker Switch Using The Same | |
| CN201975286U (en) | Isolating switch with indicating mechanism | |
| CN111081482A (en) | Electromagnetic operating mechanism of circuit breaker | |
| CN202616153U (en) | Small circuit breaker | |
| CN202616152U (en) | Operating mechanism of small circuit breaker | |
| CN205230990U (en) | Operating mechanism of disconnector | |
| CN110473749B (en) | Utilize residual current cooperation magnetization to pull cutting action circuit breaker that warns | |
| CN203521345U (en) | Residual current circuit breaker | |
| CN103489704A (en) | Operating device for vacuum circuit breaker | |
| CN209029322U (en) | Contact connecting device | |
| CN204558346U (en) | A kind of vacuum circuit-breaker | |
| CN207183188U (en) | One kind has synchronous dual operation mechanisms breaker | |
| CN208460677U (en) | A kind of double-contact relay of anti-release electric arc | |
| CN205230993U (en) | Breaker | |
| CN202651039U (en) | Miniature breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160511 Effective date of abandoning: 20180109 |