CN106373836B - A kind of protection mechanism and with its breaker - Google Patents
A kind of protection mechanism and with its breaker Download PDFInfo
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- CN106373836B CN106373836B CN201611021988.5A CN201611021988A CN106373836B CN 106373836 B CN106373836 B CN 106373836B CN 201611021988 A CN201611021988 A CN 201611021988A CN 106373836 B CN106373836 B CN 106373836B
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- 230000004224 protection Effects 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 title claims abstract description 56
- 230000009471 action Effects 0.000 claims abstract description 41
- 230000003068 static effect Effects 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 238000004146 energy storage Methods 0.000 claims description 8
- 238000010009 beating Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009979 protective mechanism Effects 0.000 description 3
- 238000000280 densification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
-
- 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
- H01H71/30—Electromagnetic mechanisms having additional short-circuited winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The present invention provides a kind of protection mechanism and has its breaker, and wherein protection mechanism includes：Push rod, and it is capable of the electric leakage driving structure of driving push rod action and short-circuit driving structure, push rod can be mounted on circuit breaker internal with axially moving back and forth along itself, and there is the initial position for not influencing breaker actuation and triggering breaker the trigger position of trip action occurs；When electric leakage occurs, electric leakage driving structure driving push rod is moved to trigger position by initial position, makes circuit breaker tripping cutoff circuit；When short circuit occurs, short-circuit driving structure driving push rod is moved to trigger position by initial position, makes circuit breaker tripping cutoff circuit；The protection mechanism of the present invention either occurs electric leakage or short circuit, can trigger circuit breaker tripping, so as to higher safety.On the basis of existing technology, only increased newly can in short circuit driving push rod act short-circuit driving structure, be achieved that the function of short-circuit protection, have the advantages that compact-sized and at low cost.
Description
Technical field
The present invention relates to Minitype electrical leakage breaker technical fields, and in particular to a kind of protection mechanism and with its open circuit
Device.
Background technology
Minitype electrical leakage breaker of the prior art has generally included multiple poles, such as 2P breakers, 3P breakers, 4P open circuits
Device is respectively 2 poles, 3 poles and 4 pole breakers, wherein one extremely N poles (namely neutral line electrode), remaining is phase line pole, in order to make open circuit
Utensil has creepage protection function, generally can set earth leakage protective mechanism in N poles part.Earth leakage protective machine common in the art
Structure includes：Zero sequence transformer, electric leakage coil, dynamic iron core, push rod, operating mechanism and dynamic/static contact for being arranged on zero curve etc.,
When electric leakage occurs, out-of-balance current can be generated in zero sequence transformer, the input electric leakage coil after enhanced processing, electric leakage coil produces
Magnetisation power drive dynamic iron core acts, and dynamic iron core driving push rod action, push rod is acted on operating mechanism, separates dynamic/static contact,
So as to disconnect major loop, earth leakage protective function is played.
However, not only electric leakage can bring harm, short circuit also brings along harm, above-mentioned small-sized leakage, breaking of the prior art
Device only has creepage protection function, without short-circuit protection function, it is clear that defencive function is weaker, it is impossible to meet the safety of people
Demand.
In order to increase short-circuit protection function, people can select additionally to set short current protective mechanism on zero curve, however this
Part protection mechanism volume is larger, it is difficult to be arranged on N poles circuit breaker internal, need to be attached in the form of a standalone module and set
It is standby external, it is clear that this can not only greatly promote equipment cost, can also make whole equipment structure disperses, volume increase, it is impossible to meet
The compact trend requirement with compact of breaker structure.
Invention content
Therefore, the technical problem to be solved in the present invention is that providing one kind is provided simultaneously with creepage protection function and short-circuit protection
Function, and compact-sized and at low cost protection mechanism.
The invention solves another problem is that overcoming leakage circuit breakers of the prior art tight in holding structure
In the case of gathering and being inexpensive, increase the technological deficiency of short current protective mechanism, earth leakage protective work(is provided simultaneously with so as to provide one kind
Energy, short-circuit protection function, and compact-sized and at low cost breaker.
For this purpose, the present invention provides a kind of protection mechanism, including：
Push rod mounted on circuit breaker internal, and can axially move back and forth along itself, and having, which does not influence the breaker, moves
The trigger position of trip action occurs for the initial position and the triggering breaker of work；
Electric leakage driving structure can generate driving force in electric leakage, the push rod is driven to be moved to by the initial position
The trigger position；
Short-circuit driving structure is electrically connected with N polar curves road, driving force can be generated in short circuit, by directly or indirectly driving
It moves the push rod and the trigger position is moved to by the initial position.
As a preferred embodiment, the short-circuit driving structure includes：
Short action part has the first position for not influencing the putter action and the driving push rod by described initial
Position is moved to the second position of the trigger position；
Short-circuit actuator can generate driving force in short circuit, and the short action part is driven to be transported by the first position
It moves to the second position.
As a preferred embodiment, the short action part includes：
Actuating strut, middle part are installed in rotation on the circuit breaker internal, have the first end positioned at the middle part both ends
And second end；
When short circuit not occurring, the first end is opposite with the one end of the push rod (3), and does not influence the dynamic of the push rod
Make；
When short circuit occurs, the short circuit actuator drives the actuating strut to rotate by the second end, makes described first
End drives the push rod to be moved to the trigger position by the initial position.
As a preferred embodiment, the actuating strut is armature, and the short circuit actuator is electromagnet；Further include one end with
The breaker is fixedly connected, the spring that the other end is fixedly connected with the first end；
When short circuit not occurring, the spring is in the first energy storage state, and the short circuit actuator is for the second end
Adsorption capacity mutually balances each other for the active force of the first end with the spring；
When short circuit occurs, the magnetic force that the short circuit actuator generates increases, and the second end is attracted to be driven towards the short circuit
The direction movement of moving part, and then the first end is made to overcome the adsorption capacity of the spring towards the direction for driving the putter action
Movement, the spring is in the second energy storage state at this time.
As a preferred embodiment, the short-circuit actuator is beating type electromagnet.
As a preferred embodiment, the actuating strut is installed in rotation on the circuit breaker internal by static contact panel.
As a preferred embodiment, the distance between center of rotation of the second end and the actuating strut is more than described the
The distance between one end and the center of rotation of the actuating strut.
As a preferred embodiment, one end of the spring is fixedly connected with the static contact panel, the other end and described first
End is fixedly connected.
As a preferred embodiment, the short-circuit actuator is fixed on the static contact panel.
As a preferred embodiment, the electric leakage driving structure includes：
Housing, the inner cavity led in having；
Moving armature is movably mounted at described inner cavity one end；
Static iron core is fixedly mounted on the other end of the inner cavity, and middle part is equipped with through-hole；
Push rod, one end are fixedly connected with the moving armature, and the other end is pierced by the through-hole；
Resetting spring, one end are fixedly connected with the moving armature, and the other end is fixedly connected with the static iron core；
Leak electricity coil, is wrapped on the hull outside wall, for generating magnetic field in electric leakage, by driving the dynamic iron
Core, and then the push rod is driven to be moved to the trigger position by the initial position.
The present invention also provides a kind of breaker, including protection mechanism described in any one of the above embodiments.
Protection mechanism provided by the invention and with its breaker, has the following advantages：
1. the protection mechanism of the present invention including push rod and is capable of electric leakage driving structure and short circuit that driving push rod acts
Driving structure, push rod can be mounted on circuit breaker internal with axially moving back and forth along itself, and having does not influence breaker actuation
The trigger position of trip action occurs for initial position and triggering breaker；When electric leakage occurs, driving structure driving push rod of leaking electricity
Trigger position is moved to by initial position, makes circuit breaker tripping cutoff circuit；When short circuit occurs, short-circuit driving structure driving pushes away
Bar is moved to trigger position by initial position, makes circuit breaker tripping cutoff circuit；That is, the protection mechanism of the present invention, nothing
By being that electric leakage occurs or short circuit occurs, circuit breaker tripping can be triggered, so as to higher safety.The protection of the present invention
Mechanism, on the basis of existing technology, only increased newly can driving push rod acts in short circuit short-circuit driving structure, it is just real
The function of short-circuit protection is showed, this causes the protection mechanism structure of the present invention not only while has two kinds of work(of electric leakage and short-circuit protection
Can, also have the advantages that compact-sized and at low cost.
2. the protection mechanism of the present invention, including short action part and short-circuit actuator, short action part can drive in short circuit
Acted under the driving of moving part, never influence push rod first position, move to can driving push rod be moved to by initial position it is tactile
Send out the second position of position；The protection mechanism of the present invention, by setting short action part, and it is different to make it have above two
Shift position so as to which ingenious borrowed is originally used for earth leakage protective push rod, avoids additional setting and is taken off for triggering breaker
The parts of button so as to reach reduction amount of parts, reduce cost and improve the technique effect of mechanism compactedness.Further
, actuating strut is installed in rotation on circuit breaker internal by static contact panel, and the quiet of circuit breaker internal is mounted on originally by borrowing
Touch panel so as to further reduce the introducing of installing component, has simplified structure, and it is horizontal to improve mechanism densification.
3. the protection mechanism of the present invention, short action part includes actuating strut, and open circuit is installed in rotation in the middle part of actuating strut
Inside device, there is the first end and second end positioned at the middle part both ends, when a short circuit occurs, short-circuit actuator and actuating strut
Second end is had an effect, and actuating strut is made to be swung, and then one end of first end and push rod is made to have an effect around its middle part, so as to play
Trigger the effect of putter action.The mode of action of actuating strut determines the installation very simple of actuating strut, without setting complexity
Mounting structure carrys out installation action bar, so as to further simplify structure, improves mechanism compactedness, and further reduced production
And assembly cost.
4. the protection mechanism of the present invention, further, actuating strut is armature, and short-circuit actuator is electromagnet, further includes one
End is fixedly connected with breaker, the spring that the other end is fixedly connected with one end of actuating strut；When short circuit not occurring, spring is in the
One energy storage state, short-circuit actuator mutually balance each other for the active force of first end with spring for the adsorption capacity of second end；Occur
When short-circuit, the magnetic force that short-circuit actuator generates increases, and second end is attracted to be moved towards the direction of short-circuit actuator, and then make first
End overcomes the direction movement that the adsorption capacity of spring is acted towards driving push rod, and spring is in the second energy storage state at this time；It is this to set
The mode of putting is advantageous in that, when short circuit does not occur, short-circuit actuator for second end adsorption capacity and spring for first end
Active force mutually balance each other, actuating strut can be stablized in setting position under the action of this power, be not easy to deviate well；When
When short circuit occurs, short-circuit actuator, which can take advantage of a situation, borrows the electric current that increases, and drive actions bar acts after overcoming the elastic force of spring,
The first end of actuating strut is made more accurately directly or indirectly to act on one end of push rod, pushes putter action.As preferred skill
Art scheme, short-circuit actuator are beating type electromagnet, and when short circuit occurs, electric current can increase rapidly, and beating type electromagnet energy
This variation is enough responded rapidly to, and generates big magnetic-adsorption armature rapidly, so as to which armature be made to act on push rod rapidly, makes push rod
Rapid triggering is threaded off.
5. the protection mechanism of the present invention, the distance between the second end of actuating strut and the center of rotation of actuating strut are more than action
The distance between the first end of bar and the center of rotation of actuating strut, when short circuit occur when, short-circuit actuator for second end compared with
Small attraction can be amplified in first end by lever principle, first end be made to have larger power drive putter action, so as to carry
The sensitivity of high protection mechanism.
6. the protection mechanism of the present invention, short-circuit actuator are fixed on static contact panel, this setup is further filled
Divide and static contact panel is utilized, avoid the installing component introduced for short-circuit actuator to be fixedly installed, finish so as to be further simplified
Structure improves mechanism compactedness, and further reduced production and assembly cost.
7. the present invention also provides a kind of breaker, there is as above any one of them protection mechanism, as a result of upper
The protection mechanism stated so that breaker of the invention is not only provided simultaneously with creepage protection function and short-circuit protection function, also as
The simplifying of above-mentioned protection mechanism structure, compact advantage, and have the advantages that compact-sized low with manufacturing cost.
Description of the drawings
In order to illustrate more clearly of the technical solution in the prior art or the specific embodiment of the invention, below to existing skill
Attached drawing used in art or specific embodiment description is briefly described, it should be apparent that, for ordinary skill people
For member, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is structure diagram of the protection mechanism when push rod is located at initial position in the embodiment of the present invention 1.
Fig. 2 is structure diagram of the protection mechanism when push rod is located at trigger position in the embodiment of the present invention 1.
Fig. 3 is the structure diagram after the protection mechanism in the embodiment of the present invention 1 is installed in breaker N poles side.
Reference numeral：1- actuating struts, 11- first ends, 12- second ends, 2- short circuit actuators, 3- push rods, 4- springs, 5- are quiet
Touch panel, 6- housings, 61- inner cavities, 62- electric leakage coils, 7- moving armatures, 8- static iron cores, 81- through-holes, 9- resetting springs.
Specific embodiment
Technical scheme of the present invention is described with reference to the accompanying drawings of the specification, it is clear that following embodiments is not this
Invent whole embodiments.Based on embodiment described in the invention, those of ordinary skill in the art are not making other wounds
All other embodiments obtained under the premise of the property made labour, belong to protection scope of the present invention.
It should be noted that in the description of the present invention, term " first ", " second " are only used for description purpose, and cannot
It is interpreted as indicating or implying relative importance.In addition, technology involved in invention described below different embodiments
Feature can be combined with each other as long as they do not conflict with each other.
Embodiment 1
The present embodiment provides a kind of protection mechanism, as shown in Figs. 1-3, including push rod 3, electric leakage driving structure and short circuit driving
Structure, wherein, push rod 3 is mounted on circuit breaker internal, and can axially move back and forth along itself, and having does not influence the breaker
The trigger position of trip action occurs for the initial position and the triggering breaker of action；Electric leakage driving structure can leak electricity
When generate driving force, the push rod 3 is driven to be moved to the trigger position by the initial position；Short-circuit driving structure and N poles
Circuit is electrically connected, and driving force can be generated in short circuit, by the way that the push rod 3 is directly or indirectly driven to be moved by the initial position
It moves to the trigger position.
The protection mechanism of the present embodiment either occurs electric leakage or short circuit occurs, can trigger circuit breaker tripping, so as to
With higher safety.The protection mechanism of the present embodiment, on the basis of existing technology, only having increased newly can be in short circuit
The short-circuit driving structure that driving push rod 3 acts is achieved that the function of short-circuit protection, this causes the protection mechanism structure of the present invention
Not only there is two kinds of electric leakage and short-circuit protection simultaneously, also have the advantages that compact-sized and at low cost.
In the present embodiment, the short circuit driving structure includes：Short action part, having does not influence what the push rod 3 acted
First position and the driving push rod 3 are moved to the second position of the trigger position by the initial position；Short-circuit actuator
2, driving force can be generated in short circuit, the short action part is driven to move to the second position by the first position.
The protection mechanism of the present embodiment by setting short action part, and makes it have the different mobile position of above two
It puts, so as to which ingenious borrowed is originally used for earth leakage protective push rod 3, avoids additional setting for triggering the zero of circuit breaker tripping
Component so as to reach reduction amount of parts, reduces cost and improves the technique effect of mechanism compactedness.Further, it moves
Make bar 1 and circuit breaker internal is installed in rotation on by static contact panel 5, be mounted on the static contact panel of circuit breaker internal originally by borrowing
5, so as to further reduce the introducing of installing component, structure has been simplified, it is horizontal to improve mechanism densification.
As shown in Fig. 2, the short action part includes：Actuating strut 1, middle part are installed in rotation in the breaker
Portion has and is located at the first end 11 at the middle part both ends and second end 12；When short circuit not occurring, the first end 12 is pushed away with described
One end of bar 3 is opposite, and does not influence the action of the push rod 3；When short circuit occurs, the short circuit actuator 2 is by with described the
Two ends 12 are had an effect, and the actuating strut 1 is made to be rotated, and then first end 11 and one end of push rod 3 is made to have an effect around its middle part,
So as to play the role of triggering putter action.The mode of action of actuating strut 1 in the present embodiment determines the installation ten of actuating strut 1
Simple, complicated without setting mounting structure is divided to carry out installation action bar 1, so as to further simplify structure, it is tight to improve mechanism
Gathering property, and further reduced production and assembly cost.Those skilled in the art can flexibly select in the range of the prior art
Select the specific constructive form of short-circuit actuator 2, so as to fulfill above-mentioned technique effect, without be defined in the application enumerate it is specific
Realization method.
In the present embodiment, the actuating strut 1 is armature, and the short circuit actuator 2 is electromagnet；Further include one end and institute
It states breaker to be fixedly connected, the spring 4 that the other end is fixedly connected with the first end 11；When short circuit not occurring, at the spring 4
In the first energy storage state, the short circuit actuator 2 is for the adsorption capacity of the second end 12 and the spring 4 for described first
The active force at end 11 mutually balances each other；When short circuit occurs, the magnetic force that the short circuit actuator 2 generates increases, and attracts the second end
12 towards the short-circuit actuator 2 direction movement, and then the first end 11 is made to overcome the adsorption capacity of the spring 4 towards drive
The direction movement that the dynamic push rod 3 acts, the spring 4 is in the second energy storage state at this time.The benefit of this setup exists
In, when short circuit does not occur, short-circuit actuator 2 for second end 12 adsorption capacity and spring 4 for first end 11 active force
It mutually balances each other, actuating strut 1 can be stablized in setting position under the action of this power, be not easy to deviate well；When short circuit occurs
When, short-circuit actuator 2, which can take advantage of a situation, borrows the electric current that increases, and drive actions bar 1 is acted after overcoming the elastic force of spring 4, made
The first end 11 for making bar 1 more accurately directly or indirectly acts on one end of push rod 3, and push rod 3 is pushed to act.As preferred skill
Art scheme, the short-circuit actuator 2 in the present embodiment select beating type electromagnet, and when short circuit occurs, electric current can increase rapidly, and
Beating type electromagnet can respond rapidly to this variation, and generate big magnetic-adsorption armature rapidly, so as to which armature be made to make rapidly
For push rod 3, push rod is made to trigger dropout rapidly.
In the present embodiment, the distance between the second end 12 and the center of rotation of the actuating strut 1 are more than described first
The distance between end 11 and the center of rotation of the actuating strut 1.When short circuit occurs, short-circuit actuator 2 is for second end 12
Smaller attraction can be amplified by lever principle in first end 11, make first end 11 dynamic with larger power drive push rod 3
Make, so as to improve the sensitivity of protection mechanism.
In the present embodiment, one end of the spring 4 is fixedly connected with the static contact panel 5, the other end and the first end 11
It is fixedly connected；The short circuit actuator 2 is fixed on the static contact panel 5.This setup further takes full advantage of
The static contact panel 5 avoids the installing component introduced for short-circuit actuator 2 to be fixedly installed, so as to further simplify structure,
Mechanism compactedness is improved, and further reduced production and assembly cost.
In the present embodiment, the electric leakage driving structure includes：Housing 6, the inner cavity 61 led in having；Moving armature 7 moves
Ground is mounted on described 61 one end of inner cavity；Static iron core 8 is fixedly mounted on the other end of the inner cavity 61, and middle part is equipped with through-hole 81；
Push rod 3, one end are fixedly connected with the moving armature 7, and the other end is pierced by the through-hole 81；Resetting spring 9, one end and the dynamic rank
Iron 7 is fixedly connected, and the other end is fixedly connected with the static iron core 8；Leak electricity coil 62, is wrapped on 6 lateral wall of housing, uses
In generating magnetic field in electric leakage, by driving the dynamic iron core 7, and then the push rod 3 is driven to be moved to by the initial position
The trigger position.
Embodiment 2
The present embodiment provides a kind of breaker, with the protection mechanism described in embodiment 1, as a result of above-mentioned
Protection mechanism so that the breaker of the present embodiment is not only provided simultaneously with creepage protection function and short-circuit protection function, also as on
The simplifying of protection mechanism structure, compact advantage are stated, and is had the advantages that compact-sized low with manufacturing cost.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Variation is still in the protection scope of this invention.
Claims (9)
1. a kind of protection mechanism, it is characterised in that：Including：
Push rod (3) mounted on circuit breaker internal, and can axially move back and forth along itself, and having, which does not influence the breaker, moves
The trigger position of trip action occurs for the initial position and the triggering breaker of work；
Electric leakage driving structure can generate driving force in electric leakage, the push rod (3) is driven to be moved to institute by the initial position
State trigger position；
Short-circuit driving structure is electrically connected with N polar curves road, driving force can be generated in short circuit, by directly or indirectly driving institute
It states push rod (3) and the trigger position is moved to by the initial position；
The short circuit driving structure includes：
Short action part has the first position for not influencing the push rod (3) action and the driving push rod (3) by described first
Beginning position is moved to the second position of the trigger position；
Short-circuit actuator (2), can generate driving force in short circuit, and the short action part is driven to be moved by the first position
To the second position；
The short action part includes：
Actuating strut (1), middle part are installed in rotation on the circuit breaker internal, have the first end positioned at the middle part both ends
(11) and second end (12)；
When short circuit not occurring, the first end (11) is opposite with one end of the push rod (3), and does not influence the push rod (3)
Action；
When short circuit occurs, the short circuit actuator (2) drives the actuating strut (1) to rotate by the second end (12), makes institute
Stating first end (11) drives the push rod (3) to be moved to the trigger position by the initial position.
2. protection mechanism according to claim 1, it is characterised in that：The actuating strut (1) is armature, the short circuit driving
Part (2) is electromagnet；It further includes one end to be fixedly connected with the breaker, the other end is fixedly connected with the first end (11)
Spring (4)；
When short circuit not occurring, the spring (4) is in the first energy storage state, and the short circuit actuator (2) is for the second end
(12) adsorption capacity mutually balances each other for the active force of the first end (11) with the spring (4)；
When short circuit occurs, the magnetic force that the short circuit actuator (2) generates increases, and attracts the second end (12) towards the short circuit
The direction movement of actuator (2), and then the first end (11) is made to overcome described in the adsorption capacity towards driving of the spring (4) and is pushed away
The direction movement of bar (3) action, the spring (4) is in the second energy storage state at this time.
3. protection mechanism according to claim 2, it is characterised in that：The short circuit actuator (2) is beating type electromagnet.
4. the protection mechanism according to Claims 2 or 3, it is characterised in that：The actuating strut (1) can by static contact panel (5)
It is rotatably mounted at the circuit breaker internal.
5. protection mechanism according to claim 4, it is characterised in that：The second end (12) and the actuating strut (1)
The distance between center of rotation is more than the distance between the first end (11) and the center of rotation of the actuating strut (1).
6. protection mechanism according to claim 4, it is characterised in that：One end of the spring (4) and the static contact panel (5)
It is fixedly connected, the other end is fixedly connected with the first end (11).
7. protection mechanism according to claim 4, it is characterised in that：The short circuit actuator (2) is fixed at described
On static contact panel (5).
8. protection mechanism according to claim 1, it is characterised in that：The electric leakage driving structure includes：
Housing (6), the inner cavity (61) led in having；
Moving armature (7) is movably mounted at the inner cavity (61) one end；
Static iron core (8) is fixedly mounted on the other end of the inner cavity (61), and middle part is equipped with through-hole (81)；
Push rod (3), one end are fixedly connected with the moving armature (7), and the other end is pierced by the through-hole (81)；
Resetting spring (9), one end are fixedly connected with the moving armature (7), and the other end is fixedly connected with the static iron core (8)；
Leak electricity coil (62), is wrapped on the housing (6) lateral wall, for generating magnetic field in electric leakage, by described in driving
Moving armature (7), and then the push rod (3) is driven to be moved to the trigger position by the initial position.
9. a kind of breaker, it is characterised in that：Including protection mechanism such as according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611021988.5A CN106373836B (en) | 2016-11-16 | 2016-11-16 | A kind of protection mechanism and with its breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611021988.5A CN106373836B (en) | 2016-11-16 | 2016-11-16 | A kind of protection mechanism and with its breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106373836A CN106373836A (en) | 2017-02-01 |
| CN106373836B true CN106373836B (en) | 2018-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611021988.5A Active CN106373836B (en) | 2016-11-16 | 2016-11-16 | A kind of protection mechanism and with its breaker |
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| CN (1) | CN106373836B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109066581B (en) * | 2018-07-27 | 2024-05-24 | 东莞市拓诚实业有限公司 | Leakage protector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510987Y (en) * | 2001-10-18 | 2002-09-11 | 严洪启 | Shunt release of circuit breaker |
| CN2528103Y (en) * | 2002-02-19 | 2002-12-25 | 周圣博 | Earth leakage breaker |
| CN2562348Y (en) * | 2002-08-01 | 2003-07-23 | 严洪启 | Minimum voltage releaser of circuit breaker |
| CN2938385Y (en) * | 2006-08-17 | 2007-08-22 | 浙江省志明电气进出口有限公司 | Leakage circuit breaker |
| CN202434448U (en) * | 2012-01-06 | 2012-09-12 | 浙江鼎威科技有限公司 | Small-volume 1P+N electric-leakage circuit breaker |
| CN206259303U (en) * | 2016-11-16 | 2017-06-16 | 中欧电气有限公司 | A kind of protection mechanism and the breaker with it |
-
2016
- 2016-11-16 CN CN201611021988.5A patent/CN106373836B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510987Y (en) * | 2001-10-18 | 2002-09-11 | 严洪启 | Shunt release of circuit breaker |
| CN2528103Y (en) * | 2002-02-19 | 2002-12-25 | 周圣博 | Earth leakage breaker |
| CN2562348Y (en) * | 2002-08-01 | 2003-07-23 | 严洪启 | Minimum voltage releaser of circuit breaker |
| CN2938385Y (en) * | 2006-08-17 | 2007-08-22 | 浙江省志明电气进出口有限公司 | Leakage circuit breaker |
| CN202434448U (en) * | 2012-01-06 | 2012-09-12 | 浙江鼎威科技有限公司 | Small-volume 1P+N electric-leakage circuit breaker |
| CN206259303U (en) * | 2016-11-16 | 2017-06-16 | 中欧电气有限公司 | A kind of protection mechanism and the breaker with it |
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| Publication number | Publication date |
|---|---|
| CN106373836A (en) | 2017-02-01 |
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