CN104465251B - Electromagnetic tripping apparatus and the chopper equipped with this electromagnetic tripping apparatus - Google Patents
Electromagnetic tripping apparatus and the chopper equipped with this electromagnetic tripping apparatus Download PDFInfo
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- CN104465251B CN104465251B CN201410763657.3A CN201410763657A CN104465251B CN 104465251 B CN104465251 B CN 104465251B CN 201410763657 A CN201410763657 A CN 201410763657A CN 104465251 B CN104465251 B CN 104465251B
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- Prior art keywords
- iron core
- dynamic iron
- permanent magnet
- electromagnetic tripping
- yoke
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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
Abstract
A kind of electromagnetic tripping apparatus and the chopper equipped with this electromagnetic tripping apparatus, belong to low voltage electrical apparatus technology field.Including yoke, dynamic iron core and reaction spring, dynamic iron core is located in yoke, the upper end of this dynamic iron core leans out yoke, reaction spring is nested with on dynamic iron core, feature: also including one and flow through the magnetic flux of magnetic circuit for offer and dynamic iron core produces the permanent magnet of electromagnetic attraction, this permanent magnet is arranged in yoke, the lower end of dynamic iron core is corresponding with permanent magnet, the upper end of reaction spring is bearing in dynamic iron core upper and lower end and is bearing on permanent magnet, when big electric current flows through the current loop of outside, triggers dynamic iron core action.Eliminate by major loop current-carrying arrange or current-carrying coil cross section pin down factor；Reduce volume, save installing space, can be completely isolated with major loop, improve safety coefficient, convenient and flexible installation, may be installed each rational position of chopper；Saving copper aptitude source, the power consumption of resistance value and chopper is also remarkably reduced.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology field, be specifically related to a kind of electromagnetic tripping apparatus, and also relate to equipped with
The chopper of this electromagnetic tripping apparatus.
Background technology
As is known in the industry, chopper is generally of the functions such as overload, short circuit and aftercurrent action protecting, short-circuit protection merit
It can be the electromagnetic tripping apparatus sense being made up of dynamic iron core, static iron core, coil, yoke (also referred to as yoke), reaction spring and drive link
And magnetic field should be set up, such as provides trigger energy to the operating mechanism of chopper by the action of drive link to actuator,
Make operating mechanism action, with open failure electric current, namely circuit is disconnected.
The technical information of electromagnetic tripping apparatus can be seen in, as CN201374291Y(moulds in disclosed Chinese patent literature
Material casing type circuit breaker magnetic trip gear), CN201421812Y(combined electromagnetic tripper), CN2335255Y(compact electromagnetic
Trip gear), electromagnetic tripping apparatus in CN1276453C(chopper), CN201063322Y(pyromagnetic adjustable circuit breaker electricity consumption
Magnetic trip gear improve), the electromagnetic tripping apparatus of a CN201514908U(low-voltage circuit breaker), CN201594511U(mono-kind
The magnetic trip gear of Thermomagnetic type release), the magnetic trip gear of a CN201663128U(breaker of plastic casing),
CN202678257U(mono-kind is for the electromagnetic release mechanism of chopper), the electromagnetic release mechanism of CN202076201U(chopper)
Magnetic release with CN102360995B(chopper) and the quick magnetic release of CN102315053B(and be furnished with this quick magnetic take off
The chopper of button device), etc..
Fig. 1 is the schematic diagram of the chopper in prior art, and this chopper includes housing 1, operating mechanism 2 and electromagnetic trip
Device, wherein: the structure of electromagnetic tripping apparatus as shown in Figure 2, including yoke 3, static iron core 4, dynamic iron core 5, reaction spring 6, is propped up
Frame 7 and coil 8, coil 8 penetrates major loop and is arranged on support 7 (being surrounded on support 7), yoke 3 returning in Chinese character
Font, support 7 is through yoke 3, and static iron core 4 is positioned at one end (lower end of location status shown in Fig. 2) of support 7, on dynamic iron core 5
Under be movably arranged on support 7 and the upper end of this dynamic iron core 5 leans out support 7, reaction spring 6 be positioned at dynamic and static iron core 5,4 it
Between, say, that reaction spring 6 is nested with and is bearing in towards one end of dynamic iron core 5 on dynamic iron core 5, and towards the one of static iron core 4
End is nested with and is bearing on static iron core 4.When such as short circuit current is through coil 8 for fault current, produce between dynamic and static iron core 5,4
The permanent magnetic in F direction as shown in Figure 2, dynamic iron core 5 moves to F direction when overcoming reaction spring 6, i.e. to static iron core
The direction displacement of 4, thus drive the aforementioned operation mechanism 2 of chopper as shown in Figure 1, make operating mechanism unlock, make chopper
Dropout separating brake and disengagement failure electric current, the purpose of the protection that reaches to thread off.
From the structure of the electromagnetic tripping apparatus shown in above-mentioned Fig. 2, because coil 8 accesses in major loop (i.e. and major loop
UNICOM), determine by the size of major loop current-carrying electric current because of the sectional area of coil 8 again, then Large Copacity and miniaturization it
Between create the technical problem being difficult to even cannot take into account and balance, specifically, Large Copacity inevitable requirement coil 8 has and is able to
Meet the big current carrying area of big current-carrying capacity, the volume-diminished of miniaturization inevitable requirement electromagnetic tripping apparatus and use saving and sky be installed
Between, convenient and according to being installed on the rational position of chopper neatly, and then reduce the overall volume of chopper.But so far
Patent and non-patent literature disclosed in till are showed no all enlightenments being addressed this technical problem.
For above-mentioned prior art, the applicant has made useful exploration and design, finally defines and will be described below
Technical scheme.
Summary of the invention
The top priority of the present invention is that providing a kind of contributes to abandoning coil and use and avoid the current-carrying electricity by major loop
Stream the pining down of size, be conducive to being reduced significantly volume and use and ensure the miniaturization of chopper and ensure spirit on-board the circuit breaker
Work is installed, is of value to saving material and uses economic spirit energy-saving with the economizing type that the current whole society advocates and adapt and have just
The electromagnetic tripping apparatus embodying economy is used in reduction manufacturing cost.
Another task of the present invention is to provide a kind of chopper equipped with electromagnetic tripping apparatus, and this chopper can ensure
The comprehensive of the technique effect of described electromagnetic tripping apparatus embodies and can reduce power consumption.
The task of the present invention is performed by, a kind of electromagnetic tripping apparatus, including yoke, dynamic iron core and counter-force bullet
Spring, dynamic iron core is arranged in yoke up or down, and the upper end of this dynamic iron core leans out yoke, and reaction spring is nested with at dynamic ferrum
On core, it is characterised by: also include one for providing the magnetic flux flowing through magnetic circuit and described dynamic iron core being produced the permanent magnetism of permanent magnetic
Ferrum, this permanent magnet is arranged in yoke, and the lower end of described dynamic iron core is corresponding with permanent magnet, the upper end bearing of described reaction spring
On dynamic iron core, and the lower end of reaction spring is bearing on permanent magnet, when big electric current flows through the current loop of outside, and extraneous magnetic
The permanent magnetic field that field interference permanent magnet produces, described dynamic iron core is driven by described reaction spring and stretches out to outside.
In a specific embodiment of the present invention, constituted with level in the upper end of described yoke and had iron core
Engagement arm, and the lower end of yoke is constituted with level equally and has a permanent magnet supporting arm, this permanent magnet supporting arm is corresponding to dynamic
The lower section of iron core engagement arm, on described dynamic iron core and corresponding to dynamic position between iron core engagement arm and permanent magnet supporting arm
Putting composition and have a reaction spring supporting step circle, matches with dynamic iron core engagement arm, and leans out dynamic iron core in the upper end of dynamic iron core
Engagement arm, the upper end of described reaction spring is bearing on reaction spring supporting step circle, and described permanent magnet is arranged on permanent magnet and props up
On bearing arm.
In another specific embodiment of the present invention, described permanent magnet is stacked with one point of magnetic sheet, described instead
The lower end of power spring is bearing on described permanent magnet by this point of magnetic sheet.
In another specific embodiment of the present invention, described dynamic iron core engagement arm offers one and moves iron core and join
Close hole, and on described permanent magnet supporting arm and towards dynamic iron core engagement arm side constitute have one permanent magnet accommodate recessed
Hole, it is corresponding with dynamic iron core mating holes that this permanent magnet accommodates pit, and the upper end of described dynamic iron core is joined with dynamic iron core up or down
Matching in conjunction hole, and leans out dynamic iron core mating holes, and described permanent magnet is arranged in the position accommodating pit corresponding to permanent magnet
On described permanent magnet supporting arm.
In another specific embodiment of the present invention, in described dynamic iron core engagement arm and corresponding to described
The position of dynamic iron core mating holes offer one communicate with dynamic iron core mating holes and also while communicate with the external world for by institute
The upper end stating iron core imports the dynamic iron core lead-in groove in dynamic iron core mating holes, and the upper end of described dynamic iron core is by way of this dynamic iron core
Lead-in groove enters in dynamic iron core mating holes.
In an also specific embodiment of the present invention, the shape that described permanent magnet accommodates pit is rounded, institute
The shape of the permanent magnet stated is cylindrical.
In more and in a specific embodiment of the present invention, in the upper end of described dynamic iron core and corresponding to described dynamic
The position of iron core lead-in groove is constituted the narrow necking down of iron core, will be dynamic by way of dynamic iron core lead-in groove by this narrow necking down of dynamic iron core
Match with described dynamic iron core mating holes in the upper end of iron core.
The present invention's and then in a specific embodiment, the global shape of described yoke in font.
In the most more and in a specific embodiment of the present invention, described reaction spring is coil spring.
Another task of the present invention is performed by, a kind of chopper, is characterised by being equipped with just like claim 1 institute
The electromagnetic tripping apparatus stated.
The technical scheme that the present invention provides do not have the technical effect that the coil owing to having abandoned in prior art, thus not
Need with major loop UNICOM, eliminate by major loop current-carrying arrange or current-carrying coil cross section pin down factor；Owing to eliminating line
Circle, thus make the de-sensing magnetic that develops into of magnetic of electromagnetic tripping apparatus thread off, reduce volume the most significantly, save installation sky
Between, and can be completely isolated with major loop, improve safety coefficient, convenient and flexible installation, may be installed each conjunction of chopper
Reason position；Due to without using coil, thus not only save the copper material resource of the nonferrous materials for making coil, and
And embody economy because reducing material cost, and the power consumption of resistance value and chopper is also remarkably reduced.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the chopper in prior art.
Fig. 2 is the schematic diagram of the known electromagnetic tripping apparatus being equipped with in Fig. 1.
Fig. 3 is the example structure figure of the electromagnetic tripping apparatus of the present invention.
Fig. 4 is the arrangement space pair of the electromagnetic tripping apparatus of the present invention optimal enforcement example as electrical apparatus release and prior art
Than figure.
Fig. 5 be the present invention electromagnetic tripping apparatus in the graph of relation of power.
Fig. 6 is principle of induction schematic diagram and the dynamic iron core gap-Massa Medicata Fermentata line chart of the electromagnetic tripping apparatus of the present invention.
Fig. 7 is the dynamic iron core gap-Massa Medicata Fermentata line chart of electromagnetic tripping apparatus of the present invention.
Detailed description of the invention
In order to enable the auditor especially public of Patent Office to be more clearly understood from the technical spirit of the present invention and to have
Benefit effect, applicant will elaborate below by way of example, but the description to embodiment is not to this
The restriction of bright scheme, the most pro forma rather than substantial equivalent transformation that is only done by any foundation present inventive concept is all answered
It is considered as technical scheme category.
The concept of the most every directivity (or claiming directionality) relating to up, down, left and right is all pin
For the figure location state being described, it is therefore intended that facilitate public understanding, thus can not be understood as
To being particularly limited to of the technical scheme that the present invention provides.
Referring to Fig. 3, yoke 3(giving the structural system belonging to the electromagnetic tripping apparatus that the present invention provides also can claim
Yoke, as follows), dynamic iron core 5 and reaction spring 6, dynamic iron core 5 is arranged in yoke 3 up or down, and this dynamic iron core 5
Upper end lean out yoke 3, reaction spring 6 is nested with on dynamic iron core 5.
Technical essential as the technical scheme that the present invention provides: aforesaid electromagnetic tripping apparatus also includes one for carrying
For flowing through the magnetic flux of magnetic circuit (also can claim the first magnetic circuit, as follows) and aforementioned dynamic iron core 5 being produced the permanent magnet 9 of permanent magnetic, should
Permanent magnet 9 is arranged in yoke 3, and the lower end of aforementioned dynamic iron core 5 is corresponding with permanent magnet 9, the upper end bearing of aforementioned reaction spring 6
On dynamic iron core 5, and the lower end of reaction spring 6 is bearing on permanent magnet 9, is positioned at outside this magnetictrip when big electric current flows through
Current loop time, the magnetic flux of current loop triggers dynamic iron core 5 and makes iron core 5 action.Concrete, by big on current reflux
During electric current, loop itself produces magnetic field, the magnetic interference permanent magnet 9 permanent magnetic field in yoke 3, makes the balance of permanent magnetic field be beaten
Broken, and then dynamic iron core 5 action.It follows that permanent magnet 9, yoke 3 and dynamic iron core 5 constitute aforesaid magnetic circuit, i.e. form aforesaid
First magnetic circuit.Permanent magnet 9 is made up of permanent magnet material, is provided that permanent magnetic field.
Constituted with level in the upper end of aforementioned yokes 3 and had iron core engagement arm 31, and the lower end of yoke 3 equally with
Level is constituted a permanent magnet supporting arm 32, and this permanent magnet supporting arm 32 corresponds to the lower section of dynamic iron core engagement arm 31,
A counter-force is had on described dynamic iron core 5 and constituting corresponding to dynamic position between iron core engagement arm 31 and permanent magnet supporting arm 32
Spring-loaded step circle 51, the upper end of dynamic iron core 5 matches with dynamic iron core engagement arm 31, and leans out dynamic iron core engagement arm 31,
Aforesaid reaction spring 6 is coil spring, and the upper end of this reaction spring 6 is bearing on reaction spring supporting step circle 51, front
The permanent magnet 9 stated is arranged on permanent magnet supporting arm 32.
As shown in Figure 3, being stacked with one point of magnetic sheet 91 on aforesaid permanent magnet 9, the lower end of aforementioned reaction spring 6 is bearing in
On this point of magnetic sheet 91, i.e. the lower end of reaction spring 6 is bearing on permanent magnet 9 across a point magnetic sheet 91.Coordinate at aforesaid dynamic iron core
Offer one on arm 31 and move iron core mating holes 311, and on aforesaid permanent magnet supporting arm 32 and towards dynamic iron core engagement arm
The side of 31 i.e. state shown in Fig. 3 is constituted towards upper side has a permanent magnet to accommodate pit 321, and this permanent magnet accommodates pit
321 is corresponding with dynamic iron core mating holes 311, and the upper end of aforementioned dynamic iron core 5 matches with dynamic iron core mating holes 311 up or down
Closing, and lean out dynamic iron core mating holes 311, aforesaid permanent magnet 9 is arranged in the position accommodating pit 321 corresponding to permanent magnet
On described permanent magnet supporting arm 32.
One is offered in aforesaid dynamic iron core engagement arm 31 and in the position corresponding to aforementioned dynamic iron core mating holes 311
Not only communicated with dynamic iron core mating holes 311 but also communicated with the external world simultaneously for the upper end of dynamic iron core 5 being imported dynamic iron core mating holes
Dynamic iron core lead-in groove 312 in 311, the upper end of dynamic iron core 5 enters dynamic iron core mating holes 311 by way of this dynamic iron core lead-in groove 312
In.
In the present embodiment, as preferred scheme, the shape that aforesaid permanent magnet accommodates pit 321 is designed as in circle
Shape, by cylindrical for the shape of aforesaid permanent magnet 9.And then, in the upper end of dynamic iron core 5 and leading corresponding to described dynamic iron core
The position composition entering groove 312 has the narrow necking down of iron core 52, by this narrow necking down of dynamic iron core 52 by way of dynamic iron core lead-in groove 312
Is matched with described dynamic iron core mating holes 311 in the upper end of dynamic iron core 5.Join with dynamic iron core mating holes 311 in the upper end of dynamic iron core 5
After conjunction, will carry on dynamic iron core 5, in order to permanent magnet 9 is placed in permanent magnet together with a point magnetic sheet 91 and accommodates in pit 321, install
After, dynamic iron core mating holes 311 the not narrowest with dynamic iron core necking down 52 during the mass motion of dynamic iron core 5 contacts cooperation.Need
When disassembling whole electromagnetic tripping apparatus, only above-mentioned steps need to be reversed.
In the present embodiment, the geometry of aforesaid yoke 3 is in " ］ " shape, be somebody's turn to do " ］ " font alternatively referred to as " C " font, but
It it is the shape of the yoke 3 three-back-shaped framework that can also be designed to Chinese character.
After dynamic iron core 5 contacts with permanent magnet 9, i.e. the dynamic iron core 5 of permanent magnet 9 absorption, is now electromagnetic tripping apparatus
A kind of steady statue, and the dynamic iron core 5 of electromagnetic tripping apparatus of the present invention is not wound around by current loop, occurs at big electric current
Time, the magnetic flux being positioned at the generation of the current loop near this electrical apparatus release flows through the first loop, makes iron core 5 action.I.e. when extraneous magnetic
During the permanent magnetic field that field interference permanent magnet 9 produces, dynamic iron core 5 is driven by reaction spring 6 and stretches out to outside, so that electromagnetic trip
Device enters another kind of steady statue.
Referring to Fig. 7 and combine Fig. 3, permanent magnet 39, dynamic iron core 5, yoke 3 define permanent magnetic circuit, and X is in the figure 7
Parasang, characterizes the gap of dynamic iron core 5 and permanent magnet 9, and F is unit of force, and Y is dynamic iron core stress curve, and T is spring force stress
Curve.Dynamic iron core 5 is in bistable stage, and on the left of Y, T line intersection point, permanent magnetic is more than spring force, iron core adhesive, is in stingy
Gap state；On the right side of Y, T line intersection point, spring force is more than permanent magnetic, and iron core discharges, and is in big air gap state.The electromagnetism of the present invention
Trip gear is owing to eliminating coil 8 so that the material required for electromagnetic tripping apparatus reduces, and electromagnetic tripping apparatus
Installation site is unrestricted.Concrete, do not limited by the structure in the first loop.
Seeing Fig. 4, figure 4 illustrates chopper, this chopper includes housing 1 and operating mechanism 2, and operating mechanism 2 sets
Putting on housing 1, this chopper also includes an electrical apparatus release 20, and this electrical apparatus release 20 is the applicant present invention's described above
Electromagnetic tripping apparatus, is ordered about operating mechanism 2 action by electrical apparatus release 20.Housing 1 has multiple separate arc extinguishing chamber 11, with
The electromagnetic tripping apparatus of the present invention of the identity signal of electrical apparatus release 20 is arranged between adjacent arc extinguishing chamber 11, then without separately
Set up outward single electrical apparatus release chamber to install electromagnetic tripping apparatus of the present invention.
Refer to Fig. 5 and Fig. 6, such as electromagnetic tripping apparatus that Fig. 6 is the present invention operating diagram in chopper, specifically
Workflow is as follows, and energy storage detained again by operating mechanism 2, promotes dynamic iron core 5 to arrive attracted position, the 2-in-1 lock of operating mechanism, removes thrust,
Dynamic iron core 5 now is in attracted position, and permanent magnetic is more than spring force, keeps adhesive.When major loop occurs short circuit current I
Time, produce electromagnetic field M near busbar 30, the permanent magnetic field M ' of electromagnetic tripping apparatus of the present invention is produced interference, reaches threshold values,
Destroy the dynamic balance of electromagnetic tripping apparatus eventually.Dynamic iron core 5 moves to off-position under spring force, and promotes operating mechanism
2 so that it is unlock, reach the purpose of protective loop.The relation curve of the power of the interference of permanent magnetic field M ' is shown in by above-mentioned short circuit current I
Fig. 5.In Fig. 5, the iron core suction curve of dynamic iron core 5 is represented by Fr, and the counter spring force curve of reaction spring 6 is represented by Fs, when short
Road electric current I exceedes threshold values, the iron core i.e. iron core electromagnetic attraction of suction curve Fr() change, when iron core suction curve Fr changes to
During less than counter spring force curve Fs, dynamic iron core 5 moves, and gap becomes big, and iron core suction weakens rapidly, and dynamic iron core 5 is at reaction spring 6
Effect under i.e. move under counter spring force effect and promote the tripper of chopper, it is achieved protection of threading off.
For the use in chopper of the above-mentioned electromagnetic tripping apparatus, in order to optimize electromagnetic tripping apparatus further
Sensitivity, external drive coil can be installed on electromagnetic tripping apparatus additional.Electromagnetism in this external drive coil not prior art
Coil 8 on trip gear, because it does not access major loop, its magnetic field produced is invariable simultaneously, it is intended to adds strong electromagnetic and takes off
The sensitivity of buckle device.
In sum, the core of the present invention is that have employed sensing magnetic trip gear replaces original magnetic trip gear, by
In need not and major loop UNICOM, then its volumetric spaces will not limited by current-carrying row or current-carrying coil cross section, can be significantly
Reduce space.Meanwhile, this device is thoroughly isolated with major loop, and safety coefficient is high, easy for installation, and design calculates accurately in theory
Words, may be mounted at each position of chopper, and it can install difference in the later stage as adnexa, plug-in unit as required simultaneously
Model.Owing to without current-carrying coil, decreasing copper material, reduce the cost of important materials, reduce resistance value, chopper
Power consumption also reduce.
Claims (10)
1. an electromagnetic tripping apparatus, including yoke (3), dynamic iron core (5) and reaction spring (6), dynamic iron core (5) is up or down
Being arranged in yoke (3), and the upper end of this dynamic iron core (5) leans out yoke (3), reaction spring (6) is nested with in dynamic iron core (5)
On, it is characterised in that: also include one for providing the magnetic flux flowing through magnetic circuit and described dynamic iron core (5) being produced permanent magnetic forever
Magnet (9), this permanent magnet (9) is arranged in yoke (3), and the lower end of described dynamic iron core (5) is corresponding with permanent magnet (9), described
The upper end of reaction spring (6) is bearing on dynamic iron core (5), and the lower end of reaction spring (6) is bearing on permanent magnet (9), when greatly
When electric current flows through the current loop of outside, the permanent magnetic field that external magnetic field interference permanent magnet (9) produces, described dynamic iron core (5) is by institute
State reaction spring (6) drive and stretch out to outside.
Electromagnetic tripping apparatus the most according to claim 1, it is characterised in that in the upper end of described yoke (3) with level
Constitute and have an iron core engagement arm (31), and the lower end of yoke (3) is constituted with level equally and has a permanent magnet supporting arm
(32), this permanent magnet supporting arm (32) is corresponding to the lower section of dynamic iron core engagement arm (31), on described dynamic iron core (5) and right
Position between Ying Yudong iron core engagement arm (31) and permanent magnet supporting arm (32) is constituted a reaction spring supporting step circle
(51), matching with dynamic iron core engagement arm (31) in the upper end of dynamic iron core (5), and leans out dynamic iron core engagement arm (31), described instead
The upper end of power spring (6) is bearing on reaction spring supporting step circle (51), and described permanent magnet (9) is arranged on permanent magnet supporting arm
(32) on.
Electromagnetic tripping apparatus the most according to claim 1 and 2, it is characterised in that be stacked with on described permanent magnet (9)
One point of magnetic sheet (91), the lower end of described reaction spring (6) is bearing on described permanent magnet (9) by this point of magnetic sheet (91).
Electromagnetic tripping apparatus the most according to claim 2, it is characterised in that open on described dynamic iron core engagement arm (31)
It is provided with one and moves iron core mating holes (311), and on described permanent magnet supporting arm (32) and towards dynamic iron core engagement arm (31)
Side constitute and have a permanent magnet to accommodate pit (321), this permanent magnet accommodates pit (321) and dynamic iron core mating holes (311) phase
Correspondence, the upper end of described dynamic iron core (5) matches with dynamic iron core mating holes (311) up or down, and leans out dynamic iron core and join
Closing hole (311), described permanent magnet (9) is arranged on described permanent magnet in the position accommodating pit (321) corresponding to permanent magnet and props up
On bearing arm (32).
Electromagnetic tripping apparatus the most according to claim 4, it is characterised in that on described dynamic iron core engagement arm (31) also
And offer in the position corresponding to described dynamic iron core mating holes (311) one communicate with dynamic iron core mating holes (311) and also
The dynamic iron core lead-in groove for the upper end of described dynamic iron core (5) being imported dynamic iron core mating holes (311) simultaneously communicated with the external world
(312) upper end of, described dynamic iron core (5) enters in dynamic iron core mating holes (311) by way of this dynamic iron core lead-in groove (312).
Electromagnetic tripping apparatus the most according to claim 4, it is characterised in that described permanent magnet accommodates the shape of pit (321)
Shape is rounded, and the shape of described permanent magnet (9) is cylindrical.
Electromagnetic tripping apparatus the most according to claim 5, it is characterised in that in the upper end of described dynamic iron core (5) and right
Described in Ying Yu, the position of dynamic iron core lead-in groove (312) is constituted has the narrow necking down of iron core (52), by this narrow necking down of dynamic iron core
(52) by way of dynamic iron core lead-in groove (312), is matched with described dynamic iron core mating holes (311) in the upper end of dynamic iron core (5).
Electromagnetic tripping apparatus the most according to claim 1 and 2, it is characterised in that the global shape of described yoke (3) in word
Shape.
Electromagnetic tripping apparatus the most according to claim 3, it is characterised in that described reaction spring (6) is spiral type bullet
Spring.
10. a chopper, it is characterised in that equipped with electromagnetic tripping apparatus as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763657.3A CN104465251B (en) | 2014-12-11 | 2014-12-11 | Electromagnetic tripping apparatus and the chopper equipped with this electromagnetic tripping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763657.3A CN104465251B (en) | 2014-12-11 | 2014-12-11 | Electromagnetic tripping apparatus and the chopper equipped with this electromagnetic tripping apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN104465251A CN104465251A (en) | 2015-03-25 |
| CN104465251B true CN104465251B (en) | 2016-11-16 |
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| CN105513916B (en) * | 2016-01-21 | 2018-06-29 | 首瑞（天津）电气设备有限公司 | Deferred action mechanism and breaker in breaker |
| CN107414370B (en) * | 2017-09-10 | 2019-01-29 | 南京中高知识产权股份有限公司 | A kind of working method of quick detachable magnetic suck welding robot |
| CN107617834B (en) * | 2017-09-10 | 2019-01-29 | 南京中高知识产权股份有限公司 | A kind of quick detachable magnetic suck welding robot |
| CN110137044B (en) * | 2019-05-30 | 2024-02-02 | 天津加美特电气股份有限公司 | Intelligent circuit breaker with normally open and normally closed functions |
| CN112509888B (en) * | 2020-12-10 | 2023-01-17 | 北京双杰电气股份有限公司 | Passive tripping device for switch |
| CN114110205B (en) * | 2021-10-25 | 2022-08-05 | 浙江大学 | Bistable electromagnetic three-way valve |
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| CN201421812Y (en) * | 2009-05-19 | 2010-03-10 | 无锡唯特电气技术有限公司 | Combined electromagnetic tripper |
| CN102656658A (en) * | 2009-09-25 | 2012-09-05 | 伊顿工业(荷兰)有限公司 | Trip unit |
| CN101986412A (en) * | 2010-11-19 | 2011-03-16 | 常熟开关制造有限公司(原常熟开关厂） | Overload tripping device of breaker |
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|---|---|
| CN104465251A (en) | 2015-03-25 |
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