CN106847631A - Damping drive mechanism and liquid magnetic circuit breaker - Google Patents
Damping drive mechanism and liquid magnetic circuit breaker Download PDFInfo
- Publication number
- CN106847631A CN106847631A CN201710173915.6A CN201710173915A CN106847631A CN 106847631 A CN106847631 A CN 106847631A CN 201710173915 A CN201710173915 A CN 201710173915A CN 106847631 A CN106847631 A CN 106847631A
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- iron core
- tripping
- damping
- dynamic iron
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- 230000007246 mechanism Effects 0.000 title claims abstract description 105
- 238000013016 damping Methods 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 100
- 230000003068 static effect Effects 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 206010015856 Extrasystoles Diseases 0.000 description 1
- 208000000418 Premature Cardiac Complexes Diseases 0.000 description 1
- 241000237983 Trochidae Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The present invention provides a kind of damping drive mechanism and liquid magnetic circuit breaker, including, static iron core, dynamic iron core, actuator, back-moving spring and coil；Actuator is fixed in dynamic iron core；Coil is wound on outside static iron core, dynamic iron core；When the electric current of coil is more than rated current, the suction between dynamic iron core and static iron core is more than the pretightning force of back-moving spring, and dynamic iron core is moved to static iron core, and actuator is moved with the movement of dynamic iron core.The advantage is that the iron core cleverly devised in oil damper overcomes the elastic force of spring under magnetic field force effect, on move to static iron core it is suitable apart from when, greatly it is more than the active force of spring due to the gravitation between two magnetic poles, so that quick pick-up, while being acted by actuator trigger mechanism.
Description
Technical field
The present invention relates to one kind damping drive mechanism and liquid magnetic circuit breaker.
Background technology
Current domestic widely used miniature circuit breaker can generally be divided into two big types.One of which is that Thermomagnetic type is (double
Sheet metal) miniature circuit breaker, the advantage of this kind of miniature circuit breaker is breaking capacity high, great variety of goods and unit construction, is easy to
Design application.Have the disadvantage to make premature beats element as a result of (bimetal leaf) of high power consumption, so itself energy consumption is very high；Together
When influenceed by environment temperature due to (bimetal leaf), cause in the range of normal working temperature (- 5 DEG C~+40 DEG C) overload protection
Characteristic is unstable (except specially treated), so as to cannot adapt to the occasion that ambient temperature range changes greatly use；Furthermore due to
Uniformity influence of the ambient temperature value on (bimetal leaf) element is very big, so its overload protection characteristics cannot accomplish precisely control
System.
Another kind is liquid magnetic-type (oil damping) miniature circuit breaker, and at the beginning of such breaker is last century, the U.S. is in order to severe
Under environment the need for military activity, the miniature circuit breaker product succeeded in developing by AiRPAX companies and AcRLing companies.Should
Class product does not use (bimetal leaf) this temperature-sensing element (device), so that not only energy consumption is low, overload protection accuracy is good, and work
Make environment temperature up to (- 40 DEG C~+85 DEG C), substantially meet the use condition of most occasions.But the AC of such product
Breaking capacity is not high, so the domestic breaker for device product manufactured at present is only used for the fields such as communication.
For these reasons, we have invented a new miniature liquid magnetic-type breaker.It combines current Thermomagnetic type
With the respective advantage of two kinds of miniature circuit breakers of liquid magnetic-type, two groups of controlling organizations of independence are devised, accomplished that Each performs its own functions.Make this
The miniature liquid magnetic-type breaker of money not only remains the advantage of thermomagnetic circuit breaker, and breaking capacity is high and with unit construction, together
When also contains all advantages of (oil damping) formula breaker.
So such miniature circuit breaker of the invention, once product is ripe, into instinct reduction, substitutes (bimetal leaf) open circuit
The prospect of device will be irresistible, and have an epoch-marking significance
The content of the invention
The present invention provides a kind of damping drive mechanism and liquid magnetic circuit breaker, overcomes the defect of prior art, solves above-mentioned asking
Topic.
The present invention provides a kind of damping drive mechanism, including, static iron core, dynamic iron core, actuator, back-moving spring and coil；
Actuator is fixed in dynamic iron core；Coil is wound on outside static iron core, dynamic iron core；When the electric current of coil is more than rated current, dynamic iron core
Pretightning force of the suction more than back-moving spring and static iron core between, dynamic iron core is moved to static iron core, and actuator is with dynamic iron core
Move and move.
Further, the present invention provides a kind of damping drive mechanism, can also have following characteristics：Dynamic iron core is dynamic for oil damping
Iron core；Oil damping dynamic iron core includes, damper tube, damping spring, damping iron core；Damping iron core is arranged in damper tube；Damping bullet
Spring is arranged between damping iron core and damper tube.
Further, the present invention provides a kind of damping drive mechanism, can also have following characteristics：Back-moving spring is set on
Between static iron core and dynamic iron core.
Further, the present invention provides a kind of damping drive mechanism, can also have following characteristics：Also include shell, reset
Spring is set between shell and dynamic iron core.
Further, the present invention provides a kind of damping drive mechanism, can also have following characteristics：Reseting spring sleeve dynamic iron core
Or outside actuator.
In addition, the present invention provides a kind of liquid magnetic circuit breaker, including, actuating mechanism, transmission mechanism, conductive mechanism, overload are de-
Buckle mechanism and short-circuit tripping mechanism；Conductive mechanism includes static contact and moving contact component；Actuating mechanism drive transmission device, transmission
Structure drives moving contact component to be turned on static contact and disjunction；When operating current is more than overload rated current, overlond trip machine
Structure drive transmission device is by moving contact component and static contact disjunction；When operating current is more than short-circuit rated current, short circuit is threaded off
Mechanism's drive transmission device is by moving contact component and static contact disjunction；Overlond trip mechanism uses above-mentioned damping drive mechanism.
Further, the present invention provides a kind of liquid magnetic circuit breaker, can also have following characteristics：Transmission mechanism includes, tripping,
Lock and lock back-moving spring；Tripping is rotatably connected with actuating mechanism, and tripping drives moving contact to be turned on static contact；Lock is multiple
Position spring one end is pressed on lock, drives lock and tripping rotating Vortex；When operating current is more than overload rated current, overload
Tripping mechanism drives lock to reversely rotate, and is threaded off with tripping, moving contact component and static contact disjunction；When operating current is more than short circuit
During rated current, short-circuit tripping mechanism drives lock to reversely rotate, and is threaded off with tripping, moving contact component and static contact disjunction.
Further, the present invention provides a kind of liquid magnetic circuit breaker, can also have following characteristics：Wherein, transmission mechanism is also wrapped
Include, connecting plate and drive link；Connecting plate, tripping, actuating mechanism three are coaxially rotatably connected；Connecting plate, lock, drive link three
Person is coaxially rotatably connected；Connecting plate is also rotatably connected with moving contact component；Actuating mechanism drives tripping, connecting plate rotation；
Connecting plate drives moving contact component rotation；The operating current of overlond trip mechanism promotes transmission more than overload rated current actuator
Bar rotates, and drives lock rotation；The operating current of short-circuit tripping mechanism is more than short-circuit rated current actuator and promotes lock rotation.
Further, the present invention provides a kind of liquid magnetic circuit breaker, can also have following characteristics：Actuating mechanism include handle and
Pull bar；Handle is rotatable, and pull bar one end is removably secured on the circumference of handle, the other end and the rotatable company of transmission mechanism
Connect.
The present invention provides a kind of liquid magnetic circuit breaker, while being provided with electromagnetic short circuit protection electrical apparatus release and liquid magnetic-type overload protection
Electrical apparatus release.
A kind of damping drive mechanism of unique texture that the present invention is provided, cleverly devises dynamic iron core and is acted in magnetic field force
Under overcome the elastic force of spring, above move to static iron core it is suitable apart from when, because the gravitation between two magnetic poles is greatly more than spring
Active force so that quick pick-up, while being acted by actuator trigger mechanism；Certainly dynamic iron core can also be fixed, static iron core
It is changed to dynamic iron core, push rod is changed to pull bar, damping spring is arranged in damping iron core etc., reach same purpose.The present invention is also carried
For a kind of liquid magnetic circuit breaker, while being provided with electromagnetic short circuit protection electrical apparatus release and liquid magnetic-type overload protection electrical apparatus release
Brief description of the drawings
Fig. 1 is the gate-dividing state structure chart of liquid magnetic circuit breaker.
Fig. 2 is the top view of liquid magnetic circuit breaker.
Fig. 3 is the structure chart of the "on" position of actuating mechanism and transmission mechanism.
Fig. 4 is the structure chart of the gate-dividing state of tripping and lock.
Fig. 5 is the structure chart of conductive mechanism.
The structure chart of Tu6Shi overlond trips mechanism.
Fig. 7 is the structure chart of overlond trip dynamic iron core.
Fig. 8 is the structure chart of short-circuit tripping mechanism.
Fig. 9 is the "on" position structure chart of liquid magnetic circuit breaker.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
In order that those skilled in the art are better understood from technical scheme, below in conjunction with accompanying drawing to this hair
Bright technical scheme is further described, it is clear that described embodiment be only a part of embodiment of the invention rather than
All, the direction of particularly part runs is not limited to the content in the present embodiment.
Fig. 1 is the gate-dividing state structure chart of liquid magnetic circuit breaker.
As shown in figure 1, liquid magnetic circuit breaker includes：Housing 100, actuating mechanism 200, transmission mechanism 300, conductive mechanism 400,
Overlond trip mechanism 500, short-circuit tripping mechanism 600 and arc extinguishing structure 700.
Fig. 2 is the top view of liquid magnetic circuit breaker.
Housing 100 includes insulating base 110 and insulating lid 120, and both are fixed together using fastener.
Fig. 3 is the structure chart of the "on" position of actuating mechanism and transmission mechanism.
As shown in figure 3, actuating mechanism 200 includes：Handle 211 and pull bar 212.Handle 211 by axle 10 rotatably
It is fixed on housing 100.One end of pull bar 212 is removably secured on the circumference of handle 211 by axle 20, the other end with pass
The tripping 301 of motivation structure 300 is rotatably connected by axle 30.
Fig. 4 is the structure chart of the gate-dividing state of tripping and lock.
As shown in figure 3, transmission mechanism 300 includes：Tripping 301, connecting plate 302, lock 303, drive link 304 and lock are multiple
Position spring 305.
As shown in Figure 3 and Figure 4, tripping 301 is rotatably connected with actuating mechanism pull bar 212 by axle 20.Tripping 301, company
Fishplate bar 302, the moving contact three of conductive mechanism 400 are rotatably connected by axle 40.Axle 40 is fixed on connecting plate, defines axle
40 running orbit.Tripping 301 has buckle 301-1, in the draw-in groove 303-1 of buckle 301-1 insertions lock 303.The quilt of tripping 301
The pull bar 212 of actuating mechanism 200 drives and turns clockwise, so as to promote connecting plate 302 to turn clockwise.
Connecting plate 302, the lock 303, three of drive link 304 all are realized being rotatably connected by axle 50 and housing 100.Lock
303 there is draw-in groove 303-1, drive link to push away groove 303-2 and reset boss 303-3.
One end of drive link 304 drives rotation by oil damping overlond trip mechanism 500, and the other end pushes away groove close to drive link
303-2, can drive lock rotate counterclockwise.The one end for latching back-moving spring 305 is fixed in the spring groove 102 of shell 100, separately
One end is pressed on the reset boss 303-3 of lock 303, drives the reset rotation clockwise of lock 303.
Fig. 5 is the structure chart of conductive mechanism.
As shown in figure 5, conductive mechanism 400 includes static contact 410 and moving contact component 420.Moving contact component 420 includes：
Moving contact 421 and moving contact back-moving spring 422.Moving contact 422 is rotatably connected by axle 40 with tripping 301, connecting plate 302；
During combined floodgate, driven by both joints and turned clockwise around axle 50, conducting is contacted with static contact 410.Moving contact back-moving spring 422 1
End is fixed on shell, and the other end is hooked on moving contact 421, drives moving contact rotate counterclockwise to reset.
The structure chart of Tu6Shi overlond trips mechanism.
As shown in fig. 6, overlond trip mechanism 500 includes：Overlond trip static iron core 501, overlond trip dynamic iron core 502, mistake
Carry dropout actuator 503, overlond trip back-moving spring 504 and overlond trip coil 505.
Fig. 7 is the structure chart of overlond trip dynamic iron core.
Overlond trip dynamic iron core 502 is oil damping dynamic iron core.Oil damping dynamic iron core 502 includes：Damper tube 502-1, damping
Spring 502-2, damping iron core 502-3 and oil damping capping 502-4.Damping iron core 502-3 is arranged in damper tube 502-1；Resistance
Buddhist nun's spring 502-2 is arranged between damping iron core 502-3 and damper tube 502-1.Oil damping capping 502-4 is arranged on damper tube
The bottom of 502-1.Damping iron core 502-3 overcomes the elastic force of damping spring 502-2 under the magnetic field force effect that coil 505 is produced,
Damping iron core 502-3 is moved up.
Overlond trip static iron core 501 is fixed in housing 100, with centre bore.Overlond trip actuator 503 was fixed on
Carry in dropout dynamic iron core 502, and through the centre bore of overlond trip static iron core 501.Overlond trip actuator 503 is also close to transmission
Bar 304.Overlond trip back-moving spring 504 is enclosed within outside overlond trip dynamic iron core 502, and one end withstands on overlond trip dynamic iron core 502
Lower end, on other end top shell body 100.Overlond trip coil 505 is wound on overlond trip static iron core 501, overlond trip dynamic iron core 502
Outward；One end is turned on terminal plate 810, and the other end turned on moving contact 421 by being flexible coupling.Overlond trip actuator 503 with
Overlond trip dynamic iron core 502 is moved up and down, and drive link 304 can be promoted to be rotated around axle 50.
Fig. 8 is the structure chart of short-circuit tripping mechanism.
As shown in figure 8, short-circuit tripping mechanism 600 includes：It is short-circuit dropout static iron core 601, short-circuit dropout dynamic iron core 602, short
Road dropout actuator 603, short-circuit drop-away reset spring 604 and short-circuit tripping coil 605.
Short-circuit dropout static iron core 601 is fixed in housing 100, with centre bore.Short-circuit dropout actuator 603 is fixed on short
In road dropout dynamic iron core 602, and through the centre bore of short-circuit dropout static iron core 601.Short-circuit dropout actuator 603 is also close to lock
303.Short-circuit drop-away reset spring 604 is enclosed within outside short-circuit dropout actuator 603, is arranged on short-circuit dropout static iron core 601 and short circuit
Between dropout dynamic iron core 602.Short-circuit tripping coil 605 is wound on outside short-circuit dropout static iron core 601, short-circuit dropout dynamic iron core 602；One
End is turned on terminal plate 820, and the other end is turned on static contact 410.Short-circuit dropout actuator 603 is with short-circuit dropout dynamic iron core
602 are moved left and right, and lock 303 can be promoted to be rotated around axle 50.
As shown in figure 1, arc-extinguishing mechanism 700 is by arc-chutes 701, drainage row 702, the increasing group such as magnetic sheet 703 and flash barrier 704
Into.
The operation principle of liquid magnetic circuit breaker：
First, liquid magnetic circuit breaker closes a floodgate and separating brake
Handle 211 turns clockwise, i.e. Fig. 1 states are to Fig. 8 states.In the presence of handle 211, promotion connects pull bar 212
Fishplate bar 302 is rotated around axle 50, thus drive moving contact 421 take advantage of a situation pin rotate, contacted with static contact 410, complete close a floodgate.
At the same time, pull bar 212 also promotes tripping 301 to turn clockwise, work of the lock 303 in lock back-moving spring 305
Also turned clockwise under, drive link 304 also turns clockwise therewith.
Conversely, in the state shown in fig. 8, rotate counterclockwise handle 211, operation and the making process of part are conversely, dynamic
Contact 421 disconnects with static contact 410, realizes separating brake.
2nd, overlond trip process
Close handle, and liquid magnetic circuit breaker conductive structure is all turned on.
As shown in Figure 6 and Figure 8, when operating current is less than specified setting current, the overlond trip of overlond trip mechanism 500
The suction that dynamic iron core 502 is obtained is not enough to overcome the counter-force of overlond trip back-moving spring 504, and overlond trip dynamic iron core 502 can not
Moved to the direction of overlond trip static iron core 501；Overlond trip actuator 503 is not moved up, the driving member of transmission mechanism 300
304 do not rotate, and overlond trip mechanism 500 does not work, liquid magnetic circuit breaker conductive structure normal work.
When operating current is more than specified setting current, what the overlond trip dynamic iron core 502 of overlond trip mechanism 500 was obtained
Suction is enough to overcome the counter-force of overlond trip back-moving spring 504, and overlond trip dynamic iron core 502 is to the side of overlond trip static iron core 501
To motion；Overlond trip actuator 503 is moved up, and promotes the rotate counterclockwise of driving member 304 of transmission mechanism 300.
Driving member 304 drives 303 rotate counterclockwises of lock, and lock 303 is threaded off with tripping 301, and transmission mechanism is threaded off, and is started
Mechanism 100 resets in the presence of moving contact back-moving spring 422, moving contact 421 and the disjunction of static contact 410, liquid magnetic circuit breaker point
Lock.
3rd, short-circuit dropout process
Close handle, and liquid magnetic circuit breaker conductive structure is all turned on.
As shown in Figure 8 and Figure 9, when operating current is less than short-circuit setting current, the short circuit dropout of short-circuit tripping mechanism 600
The suction that dynamic iron core 602 is obtained is not enough to overcome the counter-force of short-circuit drop-away reset spring 604, and short-circuit dropout dynamic iron core 602 can not
Moved to the short-circuit direction of dropout static iron core 601；Short-circuit dropout actuator 603 does not move right, the lock 303 of transmission mechanism 300
Do not rotate, short-circuit tripping mechanism 600 does not work, liquid magnetic circuit breaker conductive structure normal work.
When operating current is more than short-circuit setting current, what the short-circuit dropout dynamic iron core 602 of short-circuit tripping mechanism 600 was obtained
Suction is enough to overcome the counter-force of short-circuit drop-away reset spring 604, and short-circuit dropout dynamic iron core 602 is to the short-circuit side of dropout static iron core 601
To motion；Short-circuit dropout actuator 603 moves right, and promotes the rotate counterclockwise of lock 303 of transmission mechanism 300.
Lock 303 is threaded off with tripping 301, and transmission mechanism is threaded off, work of the actuating mechanism 100 in moving contact back-moving spring 422
Use lower reset, moving contact 421 and the disjunction of static contact 410, liquid magnetic circuit breaker separating brake.
Claims (10)
- It is 1. a kind of to damp drive mechanism, it is characterised in that：Including static iron core, dynamic iron core, actuator, back-moving spring and coil；Wherein, the actuator is fixed in the dynamic iron core；The coil is wound on outside the static iron core, the dynamic iron core；When the electric current of the coil is more than rated current, the suction between the dynamic iron core and the static iron core is more than the reset The pretightning force of spring, the dynamic iron core is moved to the static iron core, and the actuator is moved with the movement of the dynamic iron core.
- 2. damping drive mechanism according to claim 1, it is characterised in that：Wherein, the dynamic iron core is oil damping dynamic iron core；The oil damping dynamic iron core includes, damper tube, damping spring, damping iron core；The damping iron core is arranged on the damping In pipe；The damping spring is arranged between the damping iron core and the damper tube.
- 3. damping drive mechanism according to claim 1, it is characterised in that：Wherein, the back-moving spring is set between the static iron core and the dynamic iron core.
- 4. damping drive mechanism according to claim 1, it is characterised in that：Also include shell, the back-moving spring is set between the shell and the dynamic iron core.
- 5. damping drive mechanism according to claim 1, it is characterised in that：Wherein, outside dynamic iron core described in the reseting spring sleeve or the actuator.
- 6. a kind of liquid magnetic circuit breaker：It is characterized in that：Including actuating mechanism, transmission mechanism, conductive mechanism, overlond trip mechanism With short-circuit tripping mechanism；Wherein, the conductive mechanism includes static contact and moving contact component；The actuating mechanism drives the transmission mechanism, the drive mechanism to drive the moving contact component to be led with the static contact Logical and disjunction；When operating current is more than the overload rated current, the overlond trip mechanism drives the transmission mechanism described will move Contact assembly and the static contact disjunction；When operating current is more than the short-circuit rated current, the short-circuit tripping mechanism drives the transmission mechanism described will move Contact assembly and the static contact disjunction.
- 7. liquid magnetic circuit breaker according to claim 6, it is characterised in that：Wherein, the overlond trip mechanism and/or the short-circuit tripping mechanism are used such as any one institute in claim 1 to 5 The damping drive mechanism stated.
- 8. liquid magnetic circuit breaker according to claim 7, it is characterised in that：Wherein, the transmission mechanism includes, tripping, lock and lock back-moving spring；The tripping is rotatably connected with the actuating mechanism, and the tripping drives the moving contact to be turned on the static contact；Described lock back-moving spring one end is pressed on the lock, drives the lock and the tripping rotating Vortex；When operating current is more than the overload rated current, the overlond trip mechanism drives the lock to reversely rotate, with The tripping dropout, the moving contact component and the static contact disjunction；When operating current is more than the short-circuit rated current, the short-circuit tripping mechanism drives the lock to reversely rotate, with The tripping dropout, the moving contact component and the static contact disjunction.
- 9. liquid magnetic circuit breaker according to claim 8, it is characterised in that：Wherein, the transmission mechanism also includes, connecting plate and drive link；The connecting plate, the tripping, the actuating mechanism three are coaxially rotatably connected；The connecting plate, the lock, the drive link three are coaxially rotatably connected；The connecting plate is also rotatably connected with the moving contact component；The actuating mechanism drives the tripping, connecting plate rotation；The connecting plate drives the moving contact component rotation；The operating current of the overlond trip mechanism promotes the drive link rotation more than overload rated current actuator, drives institute State lock rotation；The operating current of the short-circuit tripping mechanism is more than short-circuit rated current actuator and promotes the lock rotation.
- 10. liquid magnetic circuit breaker according to claim 6, it is characterised in that：Wherein, the actuating mechanism includes handle and pull bar；The handle is rotatable, and described pull bar one end is removably secured to On the circumference of the handle, the other end is rotatably connected with the transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173915.6A CN106847631B (en) | 2017-03-22 | 2017-03-22 | Damp driving mechanism and liquid magnetic circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173915.6A CN106847631B (en) | 2017-03-22 | 2017-03-22 | Damp driving mechanism and liquid magnetic circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106847631A true CN106847631A (en) | 2017-06-13 |
| CN106847631B CN106847631B (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710173915.6A Active CN106847631B (en) | 2017-03-22 | 2017-03-22 | Damp driving mechanism and liquid magnetic circuit breaker |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432120A (en) * | 1990-05-25 | 1992-02-04 | Mitsubishi Electric Corp | Operation control device of breaker |
| CN2242519Y (en) * | 1995-06-22 | 1996-12-11 | 上海第三开关厂 | Circuit-breaking switch for preventing electricity leakage |
| CN202816834U (en) * | 2012-09-04 | 2013-03-20 | 中国振华集团华联无线电器材厂 | Hydraulic electromagnetic breaker overload time-delay device |
| CN205943985U (en) * | 2016-08-30 | 2017-02-08 | 德力西电气有限公司 | Separating brake control structure and have its circuit breaker |
| CN206584880U (en) * | 2017-03-22 | 2017-10-24 | 陈业强 | Damp drive mechanism and application |
-
2017
- 2017-03-22 CN CN201710173915.6A patent/CN106847631B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432120A (en) * | 1990-05-25 | 1992-02-04 | Mitsubishi Electric Corp | Operation control device of breaker |
| CN2242519Y (en) * | 1995-06-22 | 1996-12-11 | 上海第三开关厂 | Circuit-breaking switch for preventing electricity leakage |
| CN202816834U (en) * | 2012-09-04 | 2013-03-20 | 中国振华集团华联无线电器材厂 | Hydraulic electromagnetic breaker overload time-delay device |
| CN205943985U (en) * | 2016-08-30 | 2017-02-08 | 德力西电气有限公司 | Separating brake control structure and have its circuit breaker |
| CN206584880U (en) * | 2017-03-22 | 2017-10-24 | 陈业强 | Damp drive mechanism and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106847631B (en) | 2019-11-22 |
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Effective date of registration: 20240407 Address after: 201800 J, 912 Yecheng Road, Jiading Industrial Zone, Jiading District, Shanghai Patentee after: Shanghai Minci Electric Technology Co.,Ltd. Country or region after: China Address before: 200120, Room 501, Building 8, No. 648 Gushan Road, China (Shanghai) Pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: Chen Yeqiang Country or region before: China |
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