CN110211849A - The dropproof movable contact spring of disjunction for breaker of plastic casing - Google Patents
The dropproof movable contact spring of disjunction for breaker of plastic casing Download PDFInfo
- Publication number
- CN110211849A CN110211849A CN201910265988.7A CN201910265988A CN110211849A CN 110211849 A CN110211849 A CN 110211849A CN 201910265988 A CN201910265988 A CN 201910265988A CN 110211849 A CN110211849 A CN 110211849A
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- Prior art keywords
- feeler lever
- slot
- movable
- movable contact
- contact spring
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- 238000009434 installation Methods 0.000 claims abstract description 34
- 230000008094 contradictory effect Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 19
- 230000005520 electrodynamics Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 19
- 230000003068 static effect Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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Abstract
The invention discloses a kind of dropproof movable contact springs of the disjunction for breaker of plastic casing, including attachment base, installation through slot is formed on attachment base, movable feeler lever is provided in installation through slot, movable feeler lever is hingedly arranged in installation through slot, movable feeler lever front end extends to outside installation through slot and is provided with movable contact spring, movable feeler lever rear end is also hinged with slide bar, slide bar is hinged by connecting pin and movable feeler lever, edge is formed with stroke groove on slide bar, pusher rod is equipped in stroke groove, pusher rod is rotatably arranged in accommodating cavity, conflict spring is arranged on slide bar, spring is contradicted to contradict between pusher rod and movable feeler lever, the angle of connecting hole and rotation mouth line and horizontal plane is greater than the angle of swinging chute and connecting hole line and horizontal plane.Its structure is simple, can make movable contact spring that can denounce open under short circuit current, and not because opening away from increase after driving with mechanism, so that electrodynamic repulsion force reduces and movable contact spring is caused to fall after rise.
Description
Technical field
It is especially a kind of after disjunction reprimand is opened the present invention relates to breaker of plastic casing parts technical field, have dropproof
The movable contact spring of function.
Background technique
The raising required with the disjunction to breaker of plastic casing, it is necessary to have current limiting capacity.Due to common plastic housing open circuit
The movement of device movable contact spring is determined by the movement of operating mechanism, then under short circuit current effect, is generated between dynamic/static contact powerful
Electrodynamic repulsion force, movable contact spring denounces out prior to operating mechanism, and subsequent operating mechanism reoperates, and movable contact spring is driven to continue to remote
Direction movement from static contact.After contact reprimand is opened, since the distance between dynamic and static contact constantly increases, and drop-out current is big
Small limited, the repulsion between contact is gradually reduced, and contact reaction spring can also suitably increase, and reprimand opening force in this way will be less than bullet
Spring counter-force does not act in place if actuating mechanism speed is not fast enough at this time, and the direction that movable contact spring will be closed to static contact turns
It is dynamic, that is, there is a phenomenon where contacts to fall, and causes clearance between open contacts to reduce, causes arc reignition, causes contact burning even molten
Weldering.
Falling after opening in order to avoid movable contact spring reprimand, can generally take following measure: select the contact material of resistance to melting welding,
But contact material has dual character, in the present case, resistance to melting welding function realizes, but wiper resistance can inevitably increase
Greatly, temperature rise is caused to go wrong；It reduces the operating mechanism response time and accelerates movement speed, but improve on existing link mechanism
Space is limited；Contact pressure size is controlled, but contact pressure reduces, reprimand meeting becomes easy, and temperature rise is also easy to appear problem,
If contact pressure increases, the difficulty that reprimand meeting becomes still is difficult to realize the dropproof of contact.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of dropproof movable contact spring of the disjunction for breaker of plastic casing,
Structure is simple, can make movable contact spring that can denounce open under short circuit current, and makes after driving with mechanism not because opening away from increase
Electrodynamic repulsion force is obtained to reduce and movable contact spring is caused to fall after rise.
The present invention provides a kind of dropproof movable contact spring of the disjunction for breaker of plastic casing, including attachment base, the attachment base
Two sides are formed with for hinged hinged pillar, are formed with installation through slot on the attachment base along the longitudinal direction, and the installation is logical
Movable feeler lever is provided in slot, the movable feeler lever is hingedly arranged in installation through slot by swinging axle, the installation through slot two sidewalls
On be formed with swinging chute, the swinging axle swinging axle, which is plugged in swinging chute, to be formed movable feeler lever and swings in installation through slot, described
Movable feeler lever front end, which extends, sets outside installation through slot and is provided with movable contact spring, and the movable feeler lever rear end is also hinged with slide bar, the slide bar
Connecting hole hingedly and in movable feeler lever rear end is formed by connecting pin and movable feeler lever, is formed on the slide bar along slide bar length direction
Stroke groove, sliding is equipped with pusher rod in the stroke groove, and the pusher rod is rotatably arranged in accommodating cavity and in accommodating cavity two
Form rotation mouth on side wall, be arranged with conflict spring on the slide bar, the conflicts spring conflict pusher rod and movable feeler lever it
Between, the connecting hole and rotation mouth line and horizontal plane angle be greater than swinging chute and connecting hole line and horizontal plane angle.
The beneficial effect being arranged in this way is: being arranged to this form, using the change for contradicting spring torque direction, is being in
When original state, movable contact spring is contacted with external world's limit on movable feeler lever, is contradicted spring and is provided a torque, and movable contact spring is allowed to keep this
State；When movable contact spring and static contact close a floodgate, external operation mechanism determines the position of attachment base, and movable contact spring is by static contact
It is closed counter-force, overcomes contact counter-force, departing from initial position, and contradicts the torque and the offer of static contact counter-force of spring offer at this time
Torque keep balance；When short circuit current is by coming, movable contact spring reprimand is opened, the rotation of movable feeler lever, when movable feeler lever turns to
When some position, return spring force just cross movable contact spring falling-proof mechanism dead-centre position, the dead-centre position refer to connecting hole,
When the center of rotation mouth and swinging chute is in same straight line, when movable contact spring turns over this dead-centre position, the power band of touch spring
The torque direction come will be on the contrary, make movable contact spring obtain the torque moved to the position far from static contact direction, as the external world is grasped
Make the movement of mechanism, drives attachment base rotation, and attachment base drives movable feeler lever quickly to reprimand evolution to rotation, to move touching at this time simultaneously
Piece can just not fall again, and until attachment base turns to certain position, movable contact spring is by during rotation at this time, on path
Stop the collision at position, the movable feeler lever momentum big by one, so that movable feeler lever is to the initial position direction limited with attachment base
Rotation, until contradicting spring-force driven dual line again through dead point is crossed, movable feeler lever is under the moment loading for contradicting spring force and even
Joint chair accommodates the contact of through slot bottom surface, is restored to initial position, and at this point, external operation mechanism full action to open position
It sets, keeps big between dynamic and static contact and open away from contact interrupting process terminates.Here connecting hole and rotation mouth line and horizontal plane
Angle be greater than swinging chute and connecting hole line and horizontal plane angle, the horizontal plane referred to be attachment base in initial position, even
Plane where joint chair bottom surface, while the angle herein referred to are acute angles formed by line and horizontal plane.
It is two that the present invention, which is further arranged to the slide bar, and two slide bars are hinged on connecting pin and are separately positioned on
Movable feeler lever two sides.
The beneficial effect being arranged in this way is: using the above scheme, two slide bars is arranged and make integrally-built stability more
Height, the stress of movable feeler lever is more balanced reliable, improves the using effect of product.
The present invention is further arranged to the slide bar and is circumferentially formed with locating flange close to one end of movable feeler lever, described to support
Spring is touched to contradict between locating flange and pusher rod.
The beneficial effect being arranged in this way is using the above scheme, so that conflict spring positioning is more stable, to be not susceptible to run
Partially, guarantee the stabilization of the Impact direction of movable feeler lever.
The present invention is further arranged to be formed with locating slot, the movable feeler lever lower end surface at the installation through slot front opening
The limit to be formed to movable feeler lever is clamped with locating slot.
The beneficial effect being arranged in this way is: using the above scheme, convenient for movable feeler lever is located in initial position, convenient for subsequent
Reset use, improve the service efficiency of product.
The present invention is further arranged to the positioning groove bottom and is formed with for contradicting boss, and the conflict boss passes through flat
Sliding curved surface is connect with positioning groove bottom.
The beneficial effect being arranged in this way is: using the above scheme, convenient for being contradicted with movable feeler lever, improving the accurate of positioning
Property.
The present invention is further arranged on the movable feeler lever lower end surface corresponding positioning groove location and is formed with positioning groove.
The beneficial effect being arranged in this way is: using the above scheme, convenient for carrying out conflict positioning with locating slot, improving positioning
Accuracy.
The present invention is further arranged to the swinging chute and has extended to form installation passage, the installation to installation through slot rear side
Channel width is adapted with shaft diameter is swung.
The beneficial effect being arranged in this way is: using the above scheme, can be with fast and convenient to movable feeler lever by installation passage
It is installed, improves assembly efficiency.
The present invention is further arranged to be formed with dashpot in front position on the movable feeler lever upper surface.
The beneficial effect being arranged in this way is: using the above scheme, so that avoiding movable feeler lever when in final position is cut-off
Platform is contradicted with the external world to contact, and makes between them that there are certain intervals, so that overall mechanism is not by excessive constraint.
The present invention is further arranged to the movable feeler lever rear end and is also formed with flange connector for the welding that is flexible coupling.
The beneficial effect being arranged in this way is: using the above scheme, convenient for being attached with other components, avoiding accommodating
It is attached in through slot, so that integrally-built using effect and stability with more reasonable, are improved in space.
The present invention is further arranged to that washer is arranged between the passage boom end and rotation mouth.
The beneficial effect being arranged in this way is: using the above scheme, washer is arranged, so that the mounting structure of pusher rod is more steady
It is fixed, improve integrally-built using effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of movable feeler lever in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of attachment base in the embodiment of the present invention；
Fig. 4 is the initial position figure state of movable feeler lever and attachment base in the embodiment of the present invention；
Fig. 5 is the state diagram of movable feeler lever and static contact closure in the embodiment of the present invention；
Fig. 6 is the state diagram that the embodiment of the present invention denounces movable feeler lever arrival dead point in open procedure；
Fig. 7 is that the embodiment of the present invention denounces movable feeler lever in open procedure to cross the state diagram behind dead point；
Fig. 8 is the state diagram that movable feeler lever encounters when the external world contradicts platform in attachment base of embodiment of the present invention rotation process；
Fig. 9 is state diagram of the movable feeler lever in recovery process in the embodiment of the present invention；
Figure 10 is the state diagram moved touching system in the embodiment of the present invention and cut-off final position.
Specific embodiment
It can be seen that by Fig. 1 to Fig. 3 and disclose a kind of dropproof movable contact spring of the disjunction for breaker of plastic casing, including connection
Seat 1,1 two sides of attachment base are formed with for hinged hinged pillar 12, are formed with peace along the longitudinal direction on the attachment base 1
Through slot 11 is filled, movable feeler lever 2 is provided in the installation through slot 11, the movable feeler lever 2 by swinging axle 21 hingedly installing by setting
In through slot 11, swinging chute is formed on 11 two sidewalls of installation through slot, 21 swinging axle 21 of swinging axle is plugged in swinging chute
Middle formation movable feeler lever 2 is swung in installation through slot 11, and 2 front end of movable feeler lever, which extends, sets outside installation through slot 11 and be provided with dynamic touching
Piece 22,2 rear end of movable feeler lever are also hinged with slide bar 3, and the slide bar 3 is hinged by connecting pin 4 and movable feeler lever 2 and in movable feeler lever
2 rear ends form connecting hole, are formed with stroke groove 31 along 3 length direction of slide bar on the slide bar 3, slide and wear in the stroke groove 31
Equipped with pusher rod 4, the pusher rod 4 is rotatably arranged in accommodating cavity and is formed on accommodating cavity two sidewalls rotation mouth 15, described
Be arranged on slide bar 3 and contradict spring 5, the conflicts spring 5 contradicts between pusher rod 4 and movable feeler lever 2, the connecting hole and turn
The angle of 15 lines and horizontal plane of opening one's mouth is greater than the angle of swinging chute and connecting hole line and horizontal plane.
Above-mentioned slide bar 3 is two, and two slide bars 3 are hinged on connecting pin 4 and are separately positioned on 2 two sides of movable feeler lever.This
The beneficial effect of sample setting is: using the above scheme, two slide bars 3 is set and make integrally-built stability higher, movable feeler lever 2
Stress it is more balanced reliable, improve the using effect of product.
Above-mentioned slide bar 3 is circumferentially formed with locating flange 32 close to one end of movable feeler lever 2, and the conflict spring 5 contradicts
Between locating flange 32 and pusher rod 4.The beneficial effect being arranged in this way is, using the above scheme, so that contradicting the positioning of spring 5 more
For stabilization, it is not susceptible to sideslip, guarantees the stabilization of the Impact direction of movable feeler lever 2.
Locating slot 13 is formed at above-mentioned 11 front opening of installation through slot, 2 lower end surface of movable feeler lever and locating slot 13 block
Connect the limit to be formed to movable feeler lever 2.The beneficial effect being arranged in this way is: using the above scheme, convenient for movable feeler lever 2 to be located in just
Beginning position uses convenient for subsequent reset, improves the service efficiency of product.
Above-mentioned 13 bottom surface of locating slot is formed with for contradicting boss 14, and the conflict boss 14 passes through smooth surface and positioning
The connection of 13 bottom surface of slot.The beneficial effect being arranged in this way is: using the above scheme, convenient for being contradicted with movable feeler lever 2, improving positioning
Accuracy.
13 position of locating slot, which is corresponded to, on above-mentioned 2 lower end surface of movable feeler lever is formed with positioning groove 24.The beneficial effect being arranged in this way
Fruit is: using the above scheme, convenient for carrying out conflict positioning with locating slot 13, improving the accuracy of positioning.
Above-mentioned swinging chute to installation through slot 11 on rear side of extended to form installation passage, the installation passage width and swinging axle
21 diameters are adapted.The beneficial effect being arranged in this way is: using the above scheme, can be with fast and convenient to dynamic by installation passage
Feeler lever 2 is installed, and assembly efficiency is improved.
Dashpot 25 is formed in front position on above-mentioned 2 upper surface of movable feeler lever.The beneficial effect being arranged in this way is: using
Above scheme, so that avoiding movable feeler lever 2 to contradict platform with the external world when in final position is cut-off and contacting, make to exist between them
Certain interval, so that overall mechanism is not by excessive constraint.
Above-mentioned 2 rear end of movable feeler lever is also formed with the flange connector 23 for the welding that is flexible coupling.The beneficial effect being arranged in this way
It is: using the above scheme, convenient for being attached with other components, avoids being attached in accommodating through slot, so that space is transported
With more reasonable, integrally-built using effect and stability are improved.
Washer is set between above-mentioned 4 end of pusher rod and rotation mouth 15.The beneficial effect being arranged in this way is: using above-mentioned side
Case is arranged washer so that the mounting structure of pusher rod 4 is more stable and improves integrally-built using effect.
It is described further below with reference to motion principle of the Fig. 4 to Figure 10 to the structure, in the hinged pillar on attachment base
The heart is the center of rotation of whole system, and hinged pillar is the realization transmission that is connected with external operation mechanism.When external operation machine
After structure closing operation, due between the relatively extraneous static contact in the contact of movable contact spring there are overtravel, the contact of movable contact spring with it is quiet
After contact closure, static contact can generate a reaction force to movable contact spring, the spring force for contradicting spring be overcome, so that movable feeler lever
It is rotated clockwise around oscillating rod, until overtravel is covered, the torque direction for contradicting the spring force of spring at this time is the inverse time
Needle, the counter-force that static contact provides is clockwise, so that dynamic and static contact is in equilbrium position.When electric by short circuit in circuit
Powerful electrodynamic repulsion force is generated when stream, between movable contact spring and static contact, the torque that electrodynamic repulsion force generates at this time is clockwise
And much larger than the torque for contradicting spring spring force, movable feeler lever denounceed out, and operating mechanism does not act also at this time, and movable feeler lever continue to
It moves clockwise, constantly overcomes the torque for contradicting spring spring force, until contradicting spring spring force by dead point, connection
When the center in hole, rotation mouth and swinging chute is in same straight line, once have passed through dead point, the torque direction of spring spring force is contradicted
To become counterclockwise clockwise from original, such movable feeler lever would not be opened because of movable contact spring and static contact away from increase so that
The decrease of electrodynamic repulsion force and fall movable feeler lever；With time response, it is quick to connect pillar by turning hinge for external operation mechanism action
Seat is drivingly connected to move clockwise around the heart, and attachment base drives movable feeler lever to move clockwise together,
Should during, with open away from be gradually increased, the value of electrodynamic repulsion force gradually decreases to zero, at this time movable feeler lever contradict spring spring
It is moved along clockwise direction under the action of power；The external world is encountered until movable feeler lever front end and contradicts platform, is collided at this time, generates one
Biggish momentum, momentum give movable feeler lever one torque counterclockwise, and this torque is much larger than the torque for contradicting spring spring force,
When again through dead point, i.e., conflict spring spring force passed through dead point, and torque direction to counter-clockwise transition, moving clockwise
Feeler lever rotates counterclockwise under the action of contradicting spring spring force, so that the positioning groove on movable feeler lever is fastened on
In locating slot on attachment base, movable feeler lever and attachment base are returned to initial rigging position.And attachment base is in operating mechanism at this time
Drive under still move toward the clockwise direction, even if movable feeler lever does not reset, with movable feeler lever and the extraneous gap for contradicting platform by
It is decrescence few, it still can encounter and be clamped movable feeler lever and locating slot, so that the relative position of movable feeler lever and attachment base is restored
To initial position, it is further ensured that reset effect.When the arrival of external operation mechanism cut-offs position completely, connection seat position is also true
Fixed, since the relative position of attachment base and movable feeler lever has been restored to original state, entire movable contact system restores balance, at this time
Dashpot and extraneous contradict between platform have gap on movable feeler lever, this gap ensure that entire movable contact system not by excessive
Whole complete positioning is realized in constraint.
The above embodiments are merely a preferred embodiment of the present invention, and cannot limit interest field of the invention with this, because
This, is still belonged to according to equivalent variations made by scope of the present invention patent, such as using similar technique, the equivalent product of similar structures
The range that the present invention is covered.
Claims (10)
1. a kind of dropproof movable contact spring of disjunction for breaker of plastic casing, including attachment base, the connection seat both sides form useful
In being formed with installation through slot on hinged hinged pillar, the attachment base along the longitudinal direction, it is provided in the installation through slot dynamic
Feeler lever, the movable feeler lever are hingedly arranged in installation through slot by swinging axle, are formed with swing on the installation through slot two sidewalls
Slot, the swinging axle swinging axle are plugged in formation movable feeler lever in swinging chute and swing in installation through slot, it is characterised in that: described dynamic
Feeler lever front end extends to outside installation through slot and is provided with movable contact spring, and the movable feeler lever rear end is also hinged with slide bar, and the slide bar is logical
It crosses connecting pin and is formed with row hingedly and on movable feeler lever rear end formation connecting hole, the slide bar along slide bar length direction with movable feeler lever
Journey slot, sliding is equipped with pusher rod in the stroke groove, and the pusher rod is rotatably arranged in accommodating cavity and in accommodating cavity two sides
Rotation mouth is formed on wall, and conflict spring is arranged on the slide bar, the conflict spring contradicts between pusher rod and movable feeler lever,
The angle of the connecting hole and rotation mouth line and horizontal plane is greater than the angle of swinging chute and connecting hole line and horizontal plane.
2. the dropproof movable contact spring of the disjunction according to claim 1 for breaker of plastic casing, it is characterised in that: the slide bar
It is two, two slide bars are hinged on connecting pin and are separately positioned on movable feeler lever two sides.
3. the dropproof movable contact spring of the disjunction according to claim 1 or 2 for breaker of plastic casing, it is characterised in that: described
Slide bar is circumferentially formed with locating flange close to one end of movable feeler lever, the conflict spring contradict locating flange and pusher rod it
Between.
4. the dropproof movable contact spring of the disjunction according to claim 1 for breaker of plastic casing, it is characterised in that: the installation
Locating slot is formed at through slot front opening, the movable feeler lever lower end surface and locating slot are clamped the limit to be formed to movable feeler lever.
5. the dropproof movable contact spring of the disjunction according to claim 4 for breaker of plastic casing, it is characterised in that: the positioning
Groove bottom is formed with for contradicting boss, and the conflict boss is connect by smooth surface with positioning groove bottom.
6. the dropproof movable contact spring of the disjunction according to claim 4 or 5 for breaker of plastic casing, it is characterised in that: described
Corresponding positioning groove location is formed with positioning groove on movable feeler lever lower end surface.
7. the dropproof movable contact spring of the disjunction according to claim 1 for breaker of plastic casing, it is characterised in that: the swing
Slot has extended to form installation passage to installation through slot rear side, and the installation passage width is adapted with shaft diameter is swung.
8. the dropproof movable contact spring of the disjunction according to claim 1 for breaker of plastic casing, it is characterised in that: the dynamic touching
Dashpot is formed in front position on bar upper surface.
9. the dropproof movable contact spring of the disjunction according to claim 1 for breaker of plastic casing, it is characterised in that: the dynamic touching
Rod rear end is also formed with the flange connector for the welding that is flexible coupling.
10. the dropproof movable contact spring of the disjunction according to claim 1 for breaker of plastic casing, it is characterised in that: described to push away
It moves between boom end and rotation mouth and washer is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265988.7A CN110211849A (en) | 2019-04-03 | 2019-04-03 | The dropproof movable contact spring of disjunction for breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265988.7A CN110211849A (en) | 2019-04-03 | 2019-04-03 | The dropproof movable contact spring of disjunction for breaker of plastic casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110211849A true CN110211849A (en) | 2019-09-06 |
Family
ID=67785148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910265988.7A Pending CN110211849A (en) | 2019-04-03 | 2019-04-03 | The dropproof movable contact spring of disjunction for breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110211849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110463444A (en) * | 2019-09-24 | 2019-11-19 | 伍龙秀 | A kind of leek picker |
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| CN201233853Y (en) * | 2008-07-07 | 2009-05-06 | 上海电器股份有限公司人民电器厂 | Contact device for plastic case circuit breaker |
| CN101826426A (en) * | 2010-04-16 | 2010-09-08 | 江苏辉能电气有限公司 | Contact locking device of single-breakpoint molded-case low-voltage circuit breaker |
| CN102376497A (en) * | 2010-08-23 | 2012-03-14 | 上海电科电器科技有限公司 | Slice-type contact structure of moulded case circuit breaker |
| CN102420082A (en) * | 2011-08-09 | 2012-04-18 | 无锡新宏泰电器科技股份有限公司 | Fall-preventing device for movable contact of moulded case circuit breaker |
| CN104867705A (en) * | 2015-05-28 | 2015-08-26 | 无锡新宏泰电器科技股份有限公司 | Drop-proof single-breakpoint contact operating mechanism |
| CN209561329U (en) * | 2019-04-03 | 2019-10-29 | 德力西电气有限公司 | The dropproof movable contact spring of disjunction for breaker of plastic casing |
-
2019
- 2019-04-03 CN CN201910265988.7A patent/CN110211849A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201233853Y (en) * | 2008-07-07 | 2009-05-06 | 上海电器股份有限公司人民电器厂 | Contact device for plastic case circuit breaker |
| CN101826426A (en) * | 2010-04-16 | 2010-09-08 | 江苏辉能电气有限公司 | Contact locking device of single-breakpoint molded-case low-voltage circuit breaker |
| CN102376497A (en) * | 2010-08-23 | 2012-03-14 | 上海电科电器科技有限公司 | Slice-type contact structure of moulded case circuit breaker |
| CN102420082A (en) * | 2011-08-09 | 2012-04-18 | 无锡新宏泰电器科技股份有限公司 | Fall-preventing device for movable contact of moulded case circuit breaker |
| CN104867705A (en) * | 2015-05-28 | 2015-08-26 | 无锡新宏泰电器科技股份有限公司 | Drop-proof single-breakpoint contact operating mechanism |
| CN209561329U (en) * | 2019-04-03 | 2019-10-29 | 德力西电气有限公司 | The dropproof movable contact spring of disjunction for breaker of plastic casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110463444A (en) * | 2019-09-24 | 2019-11-19 | 伍龙秀 | A kind of leek picker |
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