CN108417465A - A kind of tripping mechanism of leakage circuit breakers - Google Patents
A kind of tripping mechanism of leakage circuit breakers Download PDFInfo
- Publication number
- CN108417465A CN108417465A CN201810353725.7A CN201810353725A CN108417465A CN 108417465 A CN108417465 A CN 108417465A CN 201810353725 A CN201810353725 A CN 201810353725A CN 108417465 A CN108417465 A CN 108417465A
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- China
- Prior art keywords
- return unit
- trip link
- iron core
- dynamic iron
- grab
- 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.)
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Classifications
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- 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 invention discloses a kind of tripping mechanisms of leakage circuit breakers, including shell, the leakage tripping device being set in shell, return unit and trip link, it is provided with resetting spring in return unit and shell is connected in by resetting spring sliding, leakage tripping device includes the dynamic iron core of scalable actuation, trip link is articulated with shell, and the trip link is located on the movement locus of dynamic iron core end and pushes setting with dynamic iron core, the one end of trip link far from dynamic iron core is fixedly installed and return unit snapping or the grab abutted, trip link is provided with drives grab towards the trip link resetting spring of return unit snapping always.The present invention has the following advantages and effects：Its trip link has the elastic acting force resetted, can be preferably fixed to return unit, prevent return unit under normal operating conditions from popping up.
Description
Technical field
The present invention relates to field of circuit breakers, more particularly to a kind of tripping mechanism of leakage circuit breakers.
Background technology
Leakage circuit breakers is the electric current for referring to close, carry and cut-off under normal loop condition and can close, provide
Time in carrying and cut-off the switching device of the electric current under abnormal loop condition.Electric leakage or the person get an electric shock in by protection circuit
When, as long as leakage current reaches design alternative action current value, the leakage tripping device in leakage circuit breakers makes breaker actuation, from
And it cuts off the power and plays the role of electric leakage and electrical shock protection.
Notification number is that the Chinese patent of CN204857632U discloses a kind of tripping mechanism of leakage circuit breakers, including open circuit
Device shell, disconnecting mechanism, leakage current test system, electronic control system, magnetictrip and drop-away reset device, the dropout
Resetting apparatus includes return unit, trip link, installation axle, resetting spring, and return unit is connected to open circuit by resetting spring sliding
On device shell, the middle part of trip link is rotatably connected on by installation axle below return unit, the dynamic iron core of magnetictrip with it is de-
The one end for detaining connecting rod is sequentially connected, and is additionally provided with and return unit snapping or the grab abutted, dropout positioned at one end of trip link
The other end of connecting rod is sequentially connected with disconnecting mechanism, and the end of one end of trip link offers U-shaped opening, the end of dynamic iron core
It is provided with gear cap, the diameter of gear cap is more than the width of U-shaped opening.
In above-mentioned patent, trip link itself does not have the active force of limit return unit pop-up, by relying on dynamic iron core
Pop-up or retract action, circumferentially rotated, to realize fixation to return unit.But magnetictrip is used for a long time it
Afterwards, dynamic iron core will appear ageing state, and the Length Quantity of pop-up can reduce, at this point, dynamic iron core pushes circumferentially rotating for trip link
Amount can also reduce, and the grab on trip link just can not can not consolidate return unit with the positioning convex platform snapping on return unit
Fixed, return unit is just constantly in pop-up state, loses tripping indication function.In addition, the U-shaped opening of trip link is needed and is moved
Iron core is combined to be installed again, and installation speed is slow, efficiency is low.
Invention content
The object of the present invention is to provide a kind of tripping mechanism of leakage circuit breakers, there is trip link the elasticity resetted to make
Firmly, preferably return unit can be fixed, prevents return unit under normal operating conditions from popping up.
The present invention above-mentioned technical purpose technical scheme is that：A kind of dropout of leakage circuit breakers
Mechanism, including shell, the leakage tripping device being set in shell, return unit and trip link are provided in the return unit
Resetting spring is simultaneously connected in shell by resetting spring sliding, and the leakage tripping device includes the dynamic iron core of scalable actuation, institute
It states trip link and is articulated with shell, and the trip link is located on the movement locus of dynamic iron core end and is set with dynamic iron core pushing
It sets, the one end of the trip link far from dynamic iron core is fixedly installed to be connected with return unit snapping or the grab abutted, the dropout
Bar is provided with drives grab towards the trip link resetting spring of return unit snapping always, when the dynamic iron core is in attracting state
When, grab under the active force of trip link resetting spring with return unit snapping；When the dynamic iron core is in abjection state, move
Iron core pushes trip link to circumferentially rotate, and fixture block is detached from return unit, and return unit pops up under the elastic reaction of resetting spring, and
The avris of grab and return unit offsets.
By using above-mentioned technical proposal, the action of dynamic iron core can drive the rotation of trip link, and then control return unit
Pop-up.In this normal operation of circuit breaker, dynamic iron core is in attracting state, work of the trip link in trip link resetting spring
Under firmly, grab can be with the snapping of return unit tightly；When leaking electricity, dynamic iron core abjection, and trip link is pushed to carry out week
To rotation, grab and the return unit of trip link are detached from, and return unit pops up under the elastic reaction of resetting spring.Trip link with
Under the cooperation of trip link resetting spring, the elastic acting force for tending to return unit direction is brought, dynamic iron core need to only give the company of dropout
Bar offer circumferentially rotates power, and trip link resetting spring just can drive trip link to carry out snapping or disengaging with return unit.Work as hair
When raw electric leakage, even if the Length Quantity of the dynamic iron core pop-up of aging need to only push trip link to be detached from return unit if reduction,
At this point, resetting spring provides active force to return unit, it is opposite with resetting spring to de- mouth connecting rod offer to take off mouth connecting rod resetting spring
Active force so that trip link be easy to and return unit be detached from.When not leaking electricity, in the work of trip link resetting spring
Under firmly, trip link and return unit tightly snapping can be made.Another advantage is that trip link and the dynamic iron in leakage tripping device
Core is installed again without combined, can carry out it is independently installed, it is convenient for assembly and saved the production time.
It is further arranged to：The return unit corresponds to grab and offers card slot, and the card slot is fixedly installed can be with grab
The protrusion being interlockingly connected.
By using above-mentioned technical proposal, the setting of protrusion can allow grab preferably to snap onto protrusion, and snapping is more
Step up it is close, avoid grab when not leaking electricity with return unit be detached from.
It is further arranged to：The protrusion is set as arc relative to the side of grab.
By using above-mentioned technical proposal, when grab is detached from protrusion, grab can along protrusion arch section it is more preferable
Sliding until with protrusion be detached from, avoid grab occurs when being detached from protrusion firmly it is straight.
It is further arranged to：The return unit offers the when of being detached from card slot for grab relative to one end of trip link and moves
Sliding slot.
By using above-mentioned technical proposal, when grab and card slot disengaging, return unit pop-up, grab is located in sliding slot.When
After maintenance finishes and presses return unit again, grab is moved relative to return unit in sliding slot, until again with card slot snapping.Sliding slot
Setting, avoid grab and completely disengaged with return unit, grab can be with the sliding slot phase on return unit even if being detached from after card slot
It supports, is convenient for the snapping again of grab and card slot.
It is further arranged to：The grab includes front end, the bending section being connect with front end and the point being connect with bending section
End, when the dynamic iron core is in attracting state, the tip is interlockingly connected with the protrusion, when the dynamic iron core is in abjection
When state, the tip is detached from the protrusion, and in sliding slot.
By using above-mentioned technical proposal, the setting at tip is conducive to carry out snapping with protrusion so that grab and reset
Part is fixed more securely.
It is further arranged to：The trip link is fixedly installed bearing surface with respect to one end of dynamic iron core, and the bearing surface is solid
Surely it is provided with limited block, stroke groove is offered in the limited block, the interlocking lever for extending to stroke groove is provided on the shell,
One end fixed setting of the stroke groove with respect to dynamic iron core is useful for pushing the fixed part of interlocking lever.
By using above-mentioned technical proposal, the setting of bearing surface, contact when increasing dynamic iron core abjection with trip link
Area, convenient for driving circumferentially rotating for trip link；The setting of limited block, it is inclined to the angle occurred after dynamic iron core long-time use
Correction is played the role of in shifting, while being also beneficial to contact when dynamic iron core is deviate from bearing surface；The setting of stroke groove is moved for interlocking lever
Dynamic, the lock of interlocking lever and driving breaker open operation or feed motion links together, and lock can be driven by the movement of interlocking lever
Button carries out separating brake or feed motion to breaker.In order to push the movement of interlocking lever, it is provided with fixed part, while by trip link
Gearing is realized with interlocking lever, when trip link circumferentially rotates, fixed part rotates with it, and pushes interlocking lever in stroke groove
It is mobile.
It is further arranged to：The shape of the stroke groove is arc.
By using above-mentioned technical proposal, trip link is articulated with shell and is circumferentially rotated, stroke groove be correspondingly arranged for
Arc, convenient for connecting rod in the movement in stroke groove.
It is further arranged to：The return unit offers mounting groove, and the bottom end of the mounting groove is offered to be connected to shell
Open end, the shell are fixedly installed baffle with respect to the position of the open end, and the baffle is formed with mounting groove for resetting bullet
The movable installation cavity of spring, the resetting spring are located in installation cavity.
By using above-mentioned technical proposal, resetting spring is located in the installation cavity of return unit, avoids and trip link
It is in direct contact, the rotation of trip link will not be hindered, and resetting spring can be protected.Meanwhile not having to examine when installing trip link
Consider the position of resetting spring in return unit, installation effectiveness can be improved.
In conclusion the invention has the advantages that：Under the cooperation of trip link and trip link resetting spring, band
The elastic acting force for tending to return unit direction is carried out, dynamic iron core need to only provide to trip link and circumferentially rotate power, and trip link is multiple
Position spring just can drive trip link to carry out snapping or disengaging with return unit.In addition, trip link and dynamic iron core are without combined
Installed again, can carry out it is independently installed, it is convenient for assembly and saved the production time.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the lockup state of tripping mechanism when normally closing a floodgate in embodiment；
Fig. 3 is the lockup state of tripping mechanism when leaking electricity separating brake in embodiment；
The structural schematic diagram of trip link, trip link resetting spring and interlocking lever in Fig. 4 embodiments；
The structural schematic diagram of return unit in Fig. 5 embodiments；
Another structural schematic diagram of return unit in Fig. 6 embodiments；
The partial exploded view of Fig. 7 embodiments.
In figure：1, shell；11, baffle；12, shaft；2, leakage tripping device；21, dynamic iron core；3, trip link；31, block
Hook；311, front end；312, bending section；313, tip；32, trip link resetting spring；33, bearing surface；34, limited block；35, row
Journey slot；36, fixed part；37, interlocking lever；4, return unit；41, card slot；42, protrusion；43, sliding slot；44, mounting groove；45, it is open
End；5, resetting spring.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
Referring to figs. 1 to Fig. 7, a kind of tripping mechanism of leakage circuit breakers, including shell 1, the electric leakage that is set in shell 1 are de-
Device 2, return unit 4 and trip link 3 are detained, resetting spring 5 is provided in return unit 4 and is connected in by the sliding of resetting spring 5
Shell 1, leakage tripping device 2 include the dynamic iron core 21 of scalable actuation, and trip link 3 is articulated with shell 1 by shaft 12, thread off
Connecting rod 3 can surround shaft 12 and rotate, and trip link 3 is located on the movement locus of 21 end of dynamic iron core and is set with the pushing of dynamic iron core 21
It sets, the one end of trip link 3 far from dynamic iron core 21 is fixedly installed and 4 snapping of return unit or the grab 31 abutted, trip link 3
It is provided with and drives grab 31 towards the trip link resetting spring 32 of 4 snapping of return unit always.Trip link resets bullet 32 using torsion
Spring, leakage tripping device 2 use magnetictrip.
In addition, return unit 4, which corresponds to grab 31, offers card slot 41, card slot 41 is fixedly installed and can be interlockingly connected with grab 31
Protrusion 42, protrusion 42 can allow grab 31 preferably to snap onto protrusion 42, snapping it is even closer, avoid grab 31 not
It is detached from return unit 4 when leaking electricity.Further, protrusion 42 is set as arc relative to the side of grab 31, can make
Grab 31 is more smooth when being detached from protrusion 42, avoids grab 31 from being difficult to be detached from protrusion 42, stuck situation occurs.
In addition, return unit 4 offers the sliding slot for being moved when grab 31 and the disengaging of card slot 41 relative to one end of trip link 3
43, when grab 31 after being detached from card slot 41 be located at sliding slot 43 on, be convenient for grab 31 and card slot 41 snapping again.
In addition, grab 31 includes front end 311, the bending section 312 being connect with front end 311 and is connect with bending section 312
Tip 313, when dynamic iron core 21 is in attracting state, tip 313 is interlockingly connected with protrusion 42；When dynamic iron core 21 is in abjection shape
When state, tip 313 is detached from protrusion 42, and in sliding slot 43.
In addition, trip link 3 is fixedly installed bearing surface 33 with respect to one end of dynamic iron core 21, the bearing surface 33 fixed setting
There is limited block 34, stroke groove 35 is offered in limited block 34, the shape of stroke groove 35 is arc.It is provided with and extends on shell 1
The interlocking lever 37 of stroke groove 35, one end fixed setting of the stroke groove 35 with respect to dynamic iron core 21 are useful for pushing the fixation of interlocking lever 37
Portion 36.Interlocking lever 37 and the lock (not marked in figure) of driving breaker open operation or feed motion link together, and pass through gearing
The movement of bar 37 can drive lock to carry out separating brake or feed motion to breaker.Specifically, this leakage circuit breakers is in normal work
When making, the dynamic iron core 21 in leakage tripping device 2 is in attracting state, effect of the trip link 3 in trip link resetting spring 32
Under power, fixed part 36 is located at close to the position of dynamic iron core 21, and interlocking lever 37 is not contacted with fixed part 36, can be along stroke groove 35
It moves freely；When leaking electricity, the dynamic iron core 21 of leakage tripping device 2 deviates from and trip link 3 is driven to rotate, trip link 3
On fixed part 36 follow rotation, and interlocking lever 37 is pushed to be moved in stroke groove 35, in turn, interlocking lever 37 drives lock dynamic
Make.
In addition, return unit 4 offers mounting groove 44, the bottom end of the mounting groove 44 offers the open end being connected to shell 1
45, shell 1 is fixedly installed baffle 11 with respect to the position of the open end 45, and baffle 11 is formed with mounting groove 44 for resetting spring 5
Movable installation cavity, resetting spring 5 are located in installation cavity.
The course of work of the present embodiment is：When this leakage circuit breakers works normally, the dynamic iron core 21 in leakage tripping device 2
In attracting state, grab 31 under the active force of trip link resetting spring 32 with 4 snapping of return unit, the tip of grab 31
313 is very close with 42 snapping of protrusion in return unit 4, and return unit 4 can not bullet due to the active force by grab 31
Go out.When this leakage circuit breakers is leaked electricity, dynamic iron core 21 in leakage tripping device 2 is deviate from, at the same with the abutting of trip link 3
Face 33 offsets, and trip link 3 is pushed to be circumferentially rotated along shaft 12, in turn, grab 31 and the return unit 4 of trip link 3
Protrusion 42 be detached from, meanwhile, grab 31 is deviate from along the arch section of protrusion 42 to sliding slot 43, and with the inner wall of sliding slot 43
It offsets.And return unit 4 loses the active force of trip link 3, is popped up under the active force of resetting spring 5, expression is leaked electricity.
After being overhauled to the electric leakage reason of this leakage circuit breakers, return unit 4 is pressed again, and return unit 4 is moved relative to grab 31, card
Hook 31 can be moved along the direction of sliding slot 43 towards the protrusion 42 of return unit 4, until the tip 313 of grab 31 and protrusion 42 are again
Snapping.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (8)
1. a kind of tripping mechanism of leakage circuit breakers, including shell (1), the leakage tripping device (2), multiple that is set in shell (1)
Position part (4) and trip link (3), the return unit (4) is interior to be provided with resetting spring (5) and is slided by resetting spring (5)
It is connected in shell (1), the leakage tripping device (2) includes the dynamic iron core (21) of scalable actuation, it is characterised in that：The dropout
Connecting rod (3) is articulated with shell (1), and the trip link (3) is located on the movement locus of dynamic iron core (21) end and and dynamic iron core
(21) setting is pushed, the one end of the trip link (3) far from dynamic iron core (21) is fixedly installed and return unit (4) snapping or supports
The grab (31) connect, the trip link that the trip link (3) is provided with driving grab (31) towards return unit (4) snapping always are multiple
Position spring (32), when the dynamic iron core (21) is in attracting state, work of the grab (31) in trip link resetting spring (32)
Firmly lower and return unit (4) snapping；When the dynamic iron core (21) is in abjection state, dynamic iron core (21) pushes trip link
(3) it circumferentially rotating, grab (31) is detached from return unit (4), and return unit (4) pops up under the elastic reaction of resetting spring (5), and
Grab (31) and the avris of return unit (4) offset.
2. a kind of tripping mechanism of leakage circuit breakers according to claim 1, it is characterised in that：The return unit (4) is right
Grab (31) is answered to offer card slot (41), the card slot (41) is fixedly installed the protrusion that can be interlockingly connected with grab (31)
(42)。
3. a kind of tripping mechanism of leakage circuit breakers according to claim 2, it is characterised in that：Protrusion (42) phase
Arc is set as the side of grab (31).
4. a kind of tripping mechanism of leakage circuit breakers according to claim 3, it is characterised in that：Return unit (4) phase
Sliding slot (43) for being moved when grab (31) and card slot (41) disengaging is offered to one end of trip link (3).
5. a kind of tripping mechanism of leakage circuit breakers according to claim 4, it is characterised in that：The grab (31) includes
Front end (311), the bending section (312) being connect with front end (311) and the tip (313) being connect with bending section (312), when described
When dynamic iron core (21) is in attracting state, the tip (313) is interlockingly connected with the protrusion (42), when the dynamic iron core (21)
When in abjection state, the tip (313) is detached from the protrusion (42), and in sliding slot (43).
6. a kind of tripping mechanism of leakage circuit breakers according to claim 1, it is characterised in that：The trip link (3)
One end of opposite dynamic iron core (21) is fixedly installed bearing surface (33), which is fixedly installed limited block (34), institute
It states in limited block (34) and offers stroke groove (35), the interlocking lever for extending to stroke groove (35) is provided on the shell (1)
(37), one end fixed setting of the stroke groove (35) with respect to dynamic iron core (21) is useful for pushing the fixed part of interlocking lever (37)
(36)。
7. a kind of tripping mechanism of leakage circuit breakers according to claim 6, it is characterised in that：The stroke groove (35)
Shape is arc.
8. a kind of tripping mechanism of leakage circuit breakers according to claim 1, it is characterised in that：The return unit (4) is opened
Equipped with mounting groove (44), the bottom end of the mounting groove (44) offers the open end (45) being connected to shell (1), the shell (1)
The position of the opposite open end (45) is fixedly installed baffle (11), and the baffle (11) is formed with mounting groove (44) for resetting bullet
Spring (5) movable installation cavity, the resetting spring (5) are located in installation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353725.7A CN108417465A (en) | 2018-04-19 | 2018-04-19 | A kind of tripping mechanism of leakage circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353725.7A CN108417465A (en) | 2018-04-19 | 2018-04-19 | A kind of tripping mechanism of leakage circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108417465A true CN108417465A (en) | 2018-08-17 |
Family
ID=63135953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810353725.7A Pending CN108417465A (en) | 2018-04-19 | 2018-04-19 | A kind of tripping mechanism of leakage circuit breakers |
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| Country | Link |
|---|---|
| CN (1) | CN108417465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741999A (en) * | 2019-01-28 | 2019-05-10 | 浙江思创电力科技股份有限公司 | A kind of breaker |
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|---|---|---|---|---|
| JPH0432121A (en) * | 1990-05-24 | 1992-02-04 | Fuji Electric Co Ltd | Molded-case circuit breaker |
| KR200345690Y1 (en) * | 2003-12-26 | 2004-03-24 | 엘지산전 주식회사 | Shortage voltage trip apparatus |
| CN201167079Y (en) * | 2008-03-12 | 2008-12-17 | 浙江正泰电器股份有限公司 | Apparatus for indicating fault of an electric appliance |
| CN103456576A (en) * | 2013-09-18 | 2013-12-18 | 德力西电气有限公司 | Tripping mechanism on residual current device |
| CN103839734A (en) * | 2012-11-19 | 2014-06-04 | 施耐德电器工业公司 | Auxiliary tripping unit for circuit breaker |
| CN105070611A (en) * | 2015-08-05 | 2015-11-18 | 浙江凯发电气股份有限公司 | Tripping mechanism of residual current circuit breaker |
| CN205282425U (en) * | 2015-12-23 | 2016-06-01 | 乐清市恒力达电器有限公司 | Main current release |
| CN205789815U (en) * | 2016-06-15 | 2016-12-07 | 施耐德电器工业公司 | Magnetictrip |
| CN208189499U (en) * | 2018-04-19 | 2018-12-04 | 浙江九策智能电气有限公司 | A kind of tripping mechanism of leakage circuit breakers |
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2018
- 2018-04-19 CN CN201810353725.7A patent/CN108417465A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432121A (en) * | 1990-05-24 | 1992-02-04 | Fuji Electric Co Ltd | Molded-case circuit breaker |
| KR200345690Y1 (en) * | 2003-12-26 | 2004-03-24 | 엘지산전 주식회사 | Shortage voltage trip apparatus |
| CN201167079Y (en) * | 2008-03-12 | 2008-12-17 | 浙江正泰电器股份有限公司 | Apparatus for indicating fault of an electric appliance |
| CN103839734A (en) * | 2012-11-19 | 2014-06-04 | 施耐德电器工业公司 | Auxiliary tripping unit for circuit breaker |
| CN103456576A (en) * | 2013-09-18 | 2013-12-18 | 德力西电气有限公司 | Tripping mechanism on residual current device |
| CN105070611A (en) * | 2015-08-05 | 2015-11-18 | 浙江凯发电气股份有限公司 | Tripping mechanism of residual current circuit breaker |
| CN205282425U (en) * | 2015-12-23 | 2016-06-01 | 乐清市恒力达电器有限公司 | Main current release |
| CN205789815U (en) * | 2016-06-15 | 2016-12-07 | 施耐德电器工业公司 | Magnetictrip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741999A (en) * | 2019-01-28 | 2019-05-10 | 浙江思创电力科技股份有限公司 | A kind of breaker |
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