CN105632848B - The breaker of adjustable instantaneous trip electric current - Google Patents
The breaker of adjustable instantaneous trip electric current Download PDFInfo
- Publication number
- CN105632848B CN105632848B CN201610133485.0A CN201610133485A CN105632848B CN 105632848 B CN105632848 B CN 105632848B CN 201610133485 A CN201610133485 A CN 201610133485A CN 105632848 B CN105632848 B CN 105632848B
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- CN
- China
- Prior art keywords
- conductive pole
- magnetic conductive
- yoke
- breaker
- armature
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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
-
- 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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7463—Adjusting only the electromagnetic mechanism
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The present invention relates to a kind of breaker of adjustable instantaneous trip electric current, including housing and clapper-type buckle releaser, clapper-type buckle releaser includes tripping mechanism, excitation conductor, yoke and armature, yoke includes separate space between two side plates positioned opposite and formation, armature is installed in housing through shaft, extend to form the fitting surface for being wider than two side plate distances along shaft length direction in armature lower part, the end face of fitting surface and two side plates, which is matched somebody with somebody, is in step with, reseting elastic element is arranged with outside shaft, in yoke magnetic conductive pole is equipped with along biside plate septal direction, magnetic conductive pole can move along its axis, magnetic conductive pole axial direction one end passes through side plate and stretches into the interval intracavitary of yoke, separate space between the magnetic conductive pole axial direction other end stretches out, there is the axial movement of driving magnetic conductive pole to adjust the insulation regulating part that magnetic conductive pole stretches into interval intracavitary one end and stretches into depth on magnetic conductive pole.The present invention has the advantages of simple in structure, realization easy to process, adjusting is easy to operate, and degree of regulation is easier to control.
Description
Technical field
A kind of breaker is the utility model is related to, belongs to low-voltage electrical apparatus electrical power distribution apparatus field.
Background technology
Distribution products commonly use breaker of plastic casing（MCB、MCCB）, mainly have coil for the magnetic release in such product
Two kinds of formula and clapper-type.Comparatively speaking, clapper-type magnetic release is generally directly using busbar as magnet exciting coil, and coil type magnetic
Buckle releaser can use different coil turns according to different current specifications.It is larger that clapper-type magnetic release is used in specification more
In breaker（More than 80A）, coil type magnetic release is used in the less breaker of rated current more (is less than 63 A).Due to modeling
Shell miniature circuit breaker (MCB) is limited by space, and the small-size moulded case circuit breaker of 18mm wide, maximum rated current can only accomplish at present
125A, for example, the 5S series small breakers of Siemens Company's production and sales.Such high current product generally all uses clapper-type
Magnetic release triggering contact mechanism unlock.When short trouble occurs in circuit, short circuit current flow occurs in excitation conductor, makes rank
Iron and yoke are attracted, so that the tripping mechanism unlock for triggering breaker is threaded off, realize short-circuit protection function.
According to national standard, GB10963-2004, such miniature circuit breaker（MCB）Instantaneous trip scope it is as follows,
(5.3.5 clauses)
Dropout form exchanges scope direct current scope
B 3I n <I≤5 I n 4I n <I≤7 I n
C 5I n <I≤10 I n 7I n <I≤15 I n
That is, the miniature circuit breaker of such different rated current specification, using different dropout forms, for difference
Scope, its drop-away current value must all adjust by standard.But at present, such high current miniature circuit breaker product both domestic and external
(MCB) in use all without the function of adjusting instantaneous trip electric current.
Utility model content
To overcome defect existing in the prior art, the utility model purpose of utility model is to provide a kind of adjustable instantaneous
Drop-away current, it is simple in structure, it is easy to operate, adjust accurate breaker.
To achieve the above object, the utility model provides following technical solution：A kind of adjustable instantaneous trip electric current
Breaker, includes housing, and clapper-type buckle releaser, contact mechanism in housing, and the clapper-type buckle releaser includes
There are tripping mechanism, excitation conductor, yoke and armature, the yoke includes two blocks of side plates positioned opposite, between two blocks of side plates
Separate space between formation, armature are installed in housing through shaft, and the lower part of armature extends to be formed along the shaft length direction is wider than two
The end face of the fitting surface of side plate distance described in block, the fitting surface and two blocks of side plates is arranged with being in step with outside the shaft
Having makes reseting elastic element of the fitting surface away from two pieces of side plate end faces, it is characterised in that：In the yoke along
The two side plate septal directions are equipped with magnetic conductive pole, and magnetic conductive pole can move along its axis, and magnetic conductive pole axial direction one end passes through side
Plate and the interval intracavitary for stretching into yoke, separate space between the magnetic conductive pole axial direction other end stretches out have on magnetic conductive pole the driving magnetic conductive pole axial
Move to adjust the insulation regulating part that magnetic conductive pole stretches into interval intracavitary one end and stretches into depth.
The breaker of the utility model, installs magnetic conductive pole additional in original yoke, and the biside plate that magnetic conductive pole stretches into yoke is formed
Interval intracavitary, so as to form magnetic bypass, the depth of interval intracavitary one end is stretched into by adjusting magnetic conductive pole, i.e., between magnetic conductive pole stretches into
Length in separate space, reaches the magnetic field intensity changed in yoke so that changes suction of the yoke to armature under equal current conditions
Power size, therefore reach to instantaneous trip current regulation；The length that wherein magnetic conductive pole is stretched between the biside plate of yoke is longer, right
The Weakening degree in magnetic field is bigger so that and it is smaller to the suction of armature by same current situation lower yoke in excitation conductor, therefore
Armature suction is met to thread off under requirement in yoke, increases instantaneous trip electric current, otherwise reduce drop-away current；Its is simple in structure,
Adjust easy to operate, precision easily control.
The utility model is further, and tapped through hole is equipped with the side plate of the yoke, the insulation regulating part
Outer circumferential surface is equipped with external screw thread, and the external screw thread for the regulating part that insulate is adapted to yoke upper tapped through hole, and magnetic conductive pole is through the regulating part spiral shell that insulate
Line spinning is in tapped through hole.
Under said structure design, for the direct screw thread spinning of magnetic conductive pole on the side plate of yoke, structure is more compact, and assembling is more
For convenience, shared inner space is small, saves cost；And magnetic conductive pole is thread fitting on insulation regulating part, by being threaded into
Screw out and realize adjusting operation, degree of regulation is more preferable, easy to operation.
The utility model is further, and the insulation regulating part is arranged on one end of separate space between magnetic conductive pole stretching, magnetic conductive pole
Stretch into the free end that separate space one end is and the side plate corresponding thereto separates.
The regulating part that insulate is arranged on to one end of separate space between magnetic conductive pole stretching, the magnetic conductive pole other end is free end, and structure is more
Simple and compact, shared inner space is small, avoids other parts from stretching into adjusting of the interval intracavitary to magnetic conductive pole and interferes, adjusts more
To be accurate, and realize and insulation is formed between complete magnetic conductive pole and yoke, security is more preferable.
The utility model is further, and the housing, which is equipped with, adjusts operation through hole, the insulation regulating part on magnetic conductive pole
Adjusted operation through hole is exposed.
Under said structure design, in the case where not dismantling housing, operation can directly be adjusted, it is easy to operate.
The utility model is further, and the material of the yoke and armature is pure iron, and the side plate thickness of yoke is more than armature
Thickness of slab.
Under said structure design, more effectively it can make armature movement using electric power magnetic field, moment promotes tripping mechanism solution
Lock.
The utility model is further, and the armature is installed on by shaft on two side plates of the yoke.
Under said structure, armature is directly installed in yoke, process and assemble is convenient, and structure is more compact.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the breaker structure schematic diagram that the utility model specific embodiment adjusts instantaneous trip electric current；
Fig. 2 is the non-trip status schematic diagram of breaker that the utility model specific embodiment adjusts instantaneous trip electric current；
Fig. 3 is the circuit breaker tripping view that the utility model specific embodiment adjusts instantaneous trip electric current；
Fig. 4 is the utility model specific embodiment curvature and housing cooperation schematic diagram；
Fig. 5 is the utility model specific embodiment curvature fit structure schematic diagram；
Fig. 6 is the utility model specific embodiment curvature side view；
Fig. 7 is the utility model specific embodiment armature structure schematic diagram.
Embodiment
As shown in Fig. 1 ~ Fig. 6, a kind of breaker of adjustable instantaneous trip electric current, includes shell disclosed in the utility model
Body 1, and clapper-type buckle releaser, contact mechanism in housing, the clapper-type buckle releaser include tripping mechanism 2, encourage
Magnetic conductor 3, yoke 4 and armature 5, the yoke 4 include two blocks of side plates 41,42 positioned opposite, between two blocks of side plates 41,42
Separate space 43 between formation, armature 5 are installed in housing 1 through shaft 51, and the lower part of armature 5 is along the 51 length direction extension shape of shaft
Into be wider than two blocks of side plates 41,42 distances fitting surface, the end face of the fitting surface and two blocks of side plates 41,42 is with being in step with
Close, the reseting elastic element 52 for making the fitting surface away from two blocks of side plates 41,42 end faces is arranged with outside the shaft 51, it is multiple
Position flexible member 52 is preferably torsional spring, is equipped with magnetic conductive pole 6 along two side plates 41,42 septal directions in the yoke 4, leads
Magnetic bar 6 can move along its axis, and the axial one end of magnetic conductive pole 6 passes through side plate 42 and stretches between yoke 4 in separate space 43, leads
Separate space 43 between the axial other end of magnetic bar 6 stretches out, there is driving magnetic conductive pole 6 to move axially on magnetic conductive pole 6 and is stretched into adjusting magnetic conductive pole 6
Between in separate space 43 one end stretch into the insulation regulating part 61 of depth, insulation regulating part is made by insulating materials, and insulating materials is electrician
Field routine techniques, such as ceramics, glass, ambroin, so it will not be repeated.That is the interval of biside plate 41,42 of yoke 4 is formed
Surround the bottom of separate space 43, the wherein separate space 43 as between of side plate 41 between magnetic field, the top of another separate space 43 as between of side plate 42
Portion, magnetic conductive pole 6 is from separate space 43, interval intracavitary is stretched into 6 part of magnetic conductive pole, and magnetic conductive pole 6 is another between the insertion of the top of a separate space 43
Separate space between part is stretched out, magnetic conductive pole 6 stretch into interval cavity segment and magnetic bypass are formed in yoke 4, and magnetic conductive pole 6 stretches into the length of a separate space
Degree is longer（Depth is deeper）, it is bigger to the attenuation in magnetic field so that yoke reduces the suction of armature, pledges love in tripping force one
Under condition, the length of a separate space is stretched into by adjusting magnetic conductive pole, reaches the adjusting to drop-away current.
Tapped through hole 421 is equipped with the side plate 42 of the yoke 4, is equipped with the outer circumferential surface of the insulation regulating part 61
External screw thread, the external screw thread of insulation regulating part 61 are adapted to 4 upper tapped through hole 421 of yoke, and magnetic conductive pole 6 is through 61 screw thread of regulating part that insulate
Spinning is axially movable in tapped through hole 421.Structure is more compact, and assembling is more convenient, saves cost, adjusts finely, makes
With safety.Certainly special pedestal can be used to realize the installation of magnetic conductive pole, the through hole passed through for magnetic conductive pole, magnetic conductive pole are set on side plate
Can directly be guide hole, magnetic conductive pole slidably, promotes magnetic conductive pole to realize to adjust in guide hole by axial, that is, operate to magnetic conductive pole
Axial movement direction it is consistent, exist and adjust the defects of inconvenient and precision controlling is inaccurate, and in miniature circuit breaker
Interior, its inner space is preferential, and in addition increasing pedestal does not allow.The diameter of magnetic conductive pole 6 is less than the diameter of insulation regulating part 61, magnetic conduction
One end of bar 6 is tightly inserted in the axial centre of one end of insulation regulating part 61, its is easy to process.
Simple in structure further to make, the insulation regulating part 61 is arranged on one end of separate space 43 between the stretching of magnetic conductive pole 6, leads
Magnetic bar 6 stretches into the free end that 43 one end of a separate space is and the side plate 41 corresponding thereto separates.Under the design, insulate regulating part
61 realize the installation to magnetic conductive pole, and structure is more simple, adjust more accurate.Certain magnetic conductive pole can be horizontal by other rod-like members
Across two side plates, but so there are complicated, influenced caused by yoke big, it is unfavorable that the precision of dropout is caused, therefore it is preferred that
The scheme of this specific embodiment, reduces the influence to yoke, improves dropout precision.
Operated for ease of adjusting, be equipped with the housing 1 and adjust operation through hole 11, insulate regulating part 61 on magnetic conductive pole 6
Adjusted operation through hole 11 is exposed.The end of insulation regulating part sets flat recess or cross recess or rubbing surface or Hexagon hole etc.,
It is convenient that insulation regulating part is driven.Preferably to adapt to use on miniature circuit breaker, the end for the regulating part that insulate and housing
Outer wall flushes, and regulating part is insulated during adjusting all the time in housing.
The yoke 4 and the material of armature 5 are pure iron, and side plate 41,42 thickness of yoke 4 are more than 5 thickness of slab of armature.The structure
Under design, more effectively it can make armature movement using electric power magnetic field, moment promotes tripping mechanism unlock.
In this specific embodiment, the armature 5 is installed on by shaft 51 on two side plates 41,42 of the yoke 4, this
The structure of sample buckle releaser is more compact.
The breaker of the utility model, operating principle are：Separate space 43 between being formed between the biside plate 41,42 of yoke 4
Interior insertion magnetic conductive pole 6, so as to form magnetic bypass in the yoke 4, magnetic conductive pole 6 stretches into a separate space 43 depth difference in yoke 4
Magnetic field intensity cause Different Effects；The depth of one end in a separate space 43 is stretched into by adjusting magnetic conductive pole 6, i.e. magnetic conductive pole 6 stretches into
Between length in separate space 43, reach the magnetic field intensity changed in yoke 4 so that change yoke 4 under equal current conditions to rank
The suction size of iron 5, therefore reach to instantaneous trip current regulation；Wherein magnetic conductive pole 6 stretch into yoke 4 biside plate 41,42 it
Between length it is longer, it is bigger to the Weakening degree in magnetic field so that in excitation conductor by same current situation lower yoke 4 to armature
5 suction is smaller, therefore 5 suction of armature is met to thread off under requirement in yoke 4, increases instantaneous trip electric current, otherwise reduces de-
Detain electric current；Its is simple in structure, adjusts easy to operate, precision easily control.
Claims (7)
1. a kind of breaker of adjustable instantaneous trip electric current, include housing, and clapper-type buckle releaser in housing,
Contact mechanism, the clapper-type buckle releaser include tripping mechanism, excitation conductor, yoke and armature, and the yoke includes two
Block side plate positioned opposite, separate space between being formed between biside plate, armature are installed in housing through shaft, and the lower part of armature is along described
Shaft length direction is extended the end of the fitting surface to be formed and be wider than two pieces of side plate distances, the fitting surface and two blocks of side plates
With being in step with, being arranged with outside the shaft makes reseting elastic element of the fitting surface away from two pieces of side plate end faces in face, its
It is characterized in that：Magnetic conductive pole is equipped with along the two side plate septal directions in the yoke, magnetic conductive pole moves along its axis, magnetic conduction
Bar axial direction one end passes through side plate and stretches into the interval intracavitary of yoke, separate space between the magnetic conductive pole axial direction other end stretches out, magnetic conduction
There is the axial movement of driving magnetic conductive pole to adjust the insulation regulating part that magnetic conductive pole stretches into interval intracavitary one end and stretches into depth on bar.
2. the breaker of instantaneous trip electric current is adjusted according to claim 1, it is characterised in that：In the side of the yoke
Plate is equipped with tapped through hole, and the outer circumferential surface of the insulation regulating part is equipped with external screw thread, on the external screw thread and yoke of the regulating part that insulate
Tapped through hole is adapted to, and magnetic conductive pole is through insulating regulating part screw thread spinning in tapped through hole.
3. the breaker of adjustable instantaneous trip electric current according to claim 1 or claim 2, it is characterised in that：The insulation is adjusted
Part is arranged on one end of separate space between magnetic conductive pole stretching, and it is to be separated with the side plate corresponding thereto that magnetic conductive pole, which stretches into separate space one end,
Free end.
4. the breaker of adjustable instantaneous trip electric current according to claim 1 or claim 2, it is characterised in that：Set on the housing
Have and adjust operation through hole, the adjusted operation through hole of insulation regulating part on magnetic conductive pole is exposed.
5. the breaker of instantaneous trip electric current is adjusted according to claim 3, it is characterised in that：The housing, which is equipped with, to be adjusted
Save and operate through hole, the adjusted operation through hole of the insulation regulating part on magnetic conductive pole is exposed.
6. the breaker of adjustable instantaneous trip electric current according to claim 1 or claim 2, it is characterised in that：The yoke and rank
The material of iron is pure iron, and the side plate thickness of yoke is more than armature thickness of slab.
7. the breaker of instantaneous trip electric current is adjusted according to claim 1, it is characterised in that：The armature passes through shaft
On two side plates of the yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133485.0A CN105632848B (en) | 2016-03-09 | 2016-03-09 | The breaker of adjustable instantaneous trip electric current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133485.0A CN105632848B (en) | 2016-03-09 | 2016-03-09 | The breaker of adjustable instantaneous trip electric current |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105632848A CN105632848A (en) | 2016-06-01 |
| CN105632848B true CN105632848B (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610133485.0A Active CN105632848B (en) | 2016-03-09 | 2016-03-09 | The breaker of adjustable instantaneous trip electric current |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710980B (en) * | 2017-01-22 | 2019-09-10 | 德隆电气股份有限公司 | A kind of miniature circuit breaker |
| CN107887237A (en) * | 2017-10-26 | 2018-04-06 | 上海良信电器股份有限公司 | The clapper-type electromagnetic electrical apparatus release of miniature circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009277412A (en) * | 2008-05-13 | 2009-11-26 | Kawamura Electric Inc | Excess current tripping mechanism |
| JP2010129237A (en) * | 2008-11-25 | 2010-06-10 | Panasonic Electric Works Denro Co Ltd | Circuit breaker |
| CN202796801U (en) * | 2012-09-29 | 2013-03-13 | 德力西电气有限公司 | Clapping type electromagnetic release |
| CN204497172U (en) * | 2015-04-28 | 2015-07-22 | 大全集团有限公司 | A kind of controllable electromagnetic trip gear adding magnetic conductor |
| CN205487998U (en) * | 2016-03-09 | 2016-08-17 | 乐清市万联电器有限公司 | Circuit breaker of adjustable instantaneous tripping current |
-
2016
- 2016-03-09 CN CN201610133485.0A patent/CN105632848B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009277412A (en) * | 2008-05-13 | 2009-11-26 | Kawamura Electric Inc | Excess current tripping mechanism |
| JP2010129237A (en) * | 2008-11-25 | 2010-06-10 | Panasonic Electric Works Denro Co Ltd | Circuit breaker |
| CN202796801U (en) * | 2012-09-29 | 2013-03-13 | 德力西电气有限公司 | Clapping type electromagnetic release |
| CN204497172U (en) * | 2015-04-28 | 2015-07-22 | 大全集团有限公司 | A kind of controllable electromagnetic trip gear adding magnetic conductor |
| CN205487998U (en) * | 2016-03-09 | 2016-08-17 | 乐清市万联电器有限公司 | Circuit breaker of adjustable instantaneous tripping current |
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| Publication number | Publication date |
|---|---|
| CN105632848A (en) | 2016-06-01 |
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