CN103903917A - Selective circuit-breaker arranged in a modular case - Google Patents
Selective circuit-breaker arranged in a modular case Download PDFInfo
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- CN103903917A CN103903917A CN201310757458.7A CN201310757458A CN103903917A CN 103903917 A CN103903917 A CN 103903917A CN 201310757458 A CN201310757458 A CN 201310757458A CN 103903917 A CN103903917 A CN 103903917A
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- Prior art keywords
- circuit breaker
- main
- assembly
- shoulder
- circuit
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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
- H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker
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Abstract
The invention relates to a selective circuit-breaker arranged in a modular case. The case in inverted T-shape comprises two semi-case portions (1,2) and forms a first parallel hexahedron portion as the top of a substrate (3), a parallel hexahedron shoulder (7) as the top of the first parallel hexahedron portion and substantially on the center of the first parallel hexahedron portion. The left and right portions (B,C) of the first parallel hexahedron portion are defined by a central lateral plane. The breaker has a set of distinct and autonomous sub-assemblies arranged in a case positioned in a die with a width less than 1.5, a locking member (9), and a main circuit sub-assembly (10) including a magnetic coil (24), main thermal bimetallic strip (21), main mobile contact (32), secondary fixed contact (20) and an arc sheet of arc cut-off chamber (25). An arc cut-off sub-assembly (13) includes a stack of anti-ion plates (27), side cheek portions (30) provided with an armor plate (31) and a main fixed contact (28). A secondary circuit sub-assembly (15) includes a resistor (16), secondary thermal bimetallic strip (17) and a secondary mobile contact (18).
Description
Technical field
The present invention relates to electric wiring protection apparatus field, more particularly, relate to selectivity circuit breaker.This equipment is positioned at the upstream of protection facility, and protection facility is also benefited from other line-breaker that is connected to selectivity circuit breaker downstream conventionally, for example character based on load to be protected of other line-breaker and have differentiation and be assigned to the part of protection facility.
Background technology
Can there are two kinds of protection devices in succession based on this theory optionally; described line-breaker is only for cutting off the branch road breaking down; and described selectivity circuit breaker is positioned at the upstream of all circuits of described facility; and be only operable to the relevant line-breaker of support, in case the operating trouble of line-breaker.
Summary of the invention
The present invention's object is to provide a kind of structure of selectivity circuit breaker, and it is easy to be applied to the equipment corresponding to two kinds of possibility forms of two kinds of dissimilar connections in facility.According to the specialty culture in assembling place, (this can depend on national legislation and the standard of the electric equipment about installing for the protection of family; or be derived from simply different traditional habits), selectivity circuit breaker can use the conductor of the device that is fastened to jockey (framework and the screw that provide are provided for this reason) or be connected to described facility by the current path clamping on busbar.
This structure to product has a direct impact, and is different because complete the position of connection in housing.Therefore the two vertical adterminal little sides that, are arranged in product at housing complete connector fastening of jockey.But, complete fastening to a set of busbar at product substrate place by clamping.
The new construction proposing in the context of the present invention, the difference between structure is only the connection of described facility, this is only the peripheral function of described product, no matter connected mode is how, the combination of remaining part is generally identical.
Selectivity circuit breaker of the present invention is in practice, and be traditionally positioned in the constructed insulation shell being formed by two and half housing section, described housing is the T shape of putting upside down, and formation is as the first parallelepiped portion at the top of substrate, the top of described the first parallelepiped portion is shoulder, described shoulder is also parallelepiped, and substantially placed in the middle about the first parallelepiped portion, and two of the left and right part of distinguishing respectively of described the first parallelepiped portion is limited by central transverse plane.
Traditionally, described selectivity circuit breaker also comprises:
-jockey; make to connect via the upstream and downstream terminal of circuit breaker the conductor of circuit to be protected; main branch road is arranged between the upstream and downstream terminal of circuit breaker; described main branch road comprises main thermal actuator, a pair of corresponding active contact and main fixed contact and main magnetic actuator; described main magnetic actuator can be in the case of separating described contact with circuit for generating short circuit in the circuit to be protected of these main contact parallel connections
-secondary branch road, comprises a pair of corresponding secondary moving contact and secondary fixed contact, second heat actuator and resistance,
-mechanical caging actuator, by described main thermal actuator and second heat actuator and/or disconnect described active contact and secondary moving contact by the coupling part of adjacent electric equipment,
-control handle, stretches out from the front relative with described substrate of described housing, the described locking piece of can resetting, and respectively and switching on and off between two corresponding positions of described contact rotate, and
-arc-extinguishing tube.
According to the present invention, optionally circuit breaker is characterised in that, it comprises multiple differences of being positioned in the housing that width is not more than 1.5 moulds (modules) and assembly independently:
-locked component;
-major circuit components, comprises main magnetic actuator, main thermal actuator, the arc plate of contact, secondary fixed contact and arc-extinguishing tube initiatively;
-arc extinguishing assembly, comprises the lamination of deionization plate, all has two side flanges and the main fixed contact of barricade;
-secondary circuit assembly, comprises resistance, second heat actuator and secondary moving contact.
In the present invention, described assembly can operate in single operation, because various parts are secured to one another, so that they all become individual character and independently " super parts ".From industry, this way is favourable, because this makes to realize the full automation of assembling circuit breaker.The same structure of considering in addition two kinds of connected modes allows them very similarly to assemble chain manufacture, and the production cost of this equipment becomes very economical.
In structure of the present invention, locked component is arranged in shoulder, the horizontal space occupying be less than or equal to described shoulder width 70%.Preferably, locked component is assembled between two side covers for the parts of fastening this locked component, and this makes it evenly and easy operating and transportation.
The second heat actuator of free end, secondary moving contact and the secondary circuit assembly of the main thermal actuator of secondary fixed contact and major circuit components and the carrier that thermal actuator can be connected to locked component are also arranged in shoulder, be arranged in the residue horizontal space of the width of shoulder, the distance piece be made up of insulating material inserts between two horizontal spaces, described two horizontal spaces be formed for respectively locked component the width that is no more than shoulder 70% space and be formed at least 30% space of the width that accounts for shoulder of described residue horizontal space.
Described major circuit components is mainly positioned in the left part of the first parallelepiped portion.
In the unlimited form in the little side of housing, be connected to the form of circuit at jockey by conductor rather than busbar, the jockey with framework and screw is connected to major circuit components by conductive braided fabric part.
In addition, arc extinguishing assembly is positioned at the right part of described the first parallelepiped portion, the horizontal space occupying be no more than described right part width 70%.
Being connected in the form of circuit by conductor, the jockey with framework and screw is fixed to main fixed contact via rigidity terminal, and adds thus arc extinguishing assembly to.
Finally, the resistance of described secondary circuit assembly is arranged in the residue horizontal space of the width of right part, the distance piece be made up of insulating material inserts between two horizontal spaces, thereby between described two horizontal spaces, is formed for respectively 70% the space that is no more than described right part width of electric arc blocking assembly and at least 30% the space for the described right part width of accounting for of resistance.
Accompanying drawing explanation
Describe in more detail in accompanying drawing of the present invention below with reference to accompanying drawing:
-Fig. 1 is the perspective view of the housing of selectivity circuit breaker of the present invention, and the inner space virtual dividing that described housing is shown is three main region;
-Fig. 2 is the decomposition diagram of selectivity circuit breaker of the present invention;
-Fig. 3 is mounted in the perspective view of the assembly in half shell that forms housing drain pan, and second half hull shape becomes untight lid shell;
-Fig. 4 shows locked component;
-Fig. 5 illustrates major circuit components;
-Fig. 6 illustrates secondary circuit assembly; And
-Fig. 7 illustrates for by conductor rather than be connected to the decomposition diagram of the arc extinguishing assembly of the circuit breaker form of circuit by busbar.
Embodiment
With reference to Fig. 1, described housing has modularization outward appearance, there is in this case and in most of the cases the thickness of 1.5 moulds (26.7 millimeters), and by two and half shells that assemble (, drain pan (1) and lid shell (2)) form, two and half shells are made up of insulating material.In described form, described housing comprises substrate (3), and in this case, described substrate (3) is arranged to be fastened to the standard trajectory that for example assembles distribution box.
Jockey can be via little side (4,4 ') approach, little side has window (5), and window (5) provides these jockeys (11,12) approach, makes it possible to hold the conductor contacting with device end.
The front (6) of product comprises the control handle (8) that is positioned at central shoulder (7), and this control handle can switch between the two positions.The housing of selectivity circuit breaker is the T shape of putting upside down substantially, and the top of lower parallelepiped portion is described shoulder (7), and described shoulder is also parallelepiped-shaped, and substantially placed in the middle about described the first parallelepiped portion.
Lower parallelepiped portion can be divided into two parts (B) and (C) (be described as respectively left part (B) and right part (C)), and top is the central volume (A) of shoulder (7).Fig. 2 and Fig. 3 illustrate respectively about described half shell and assemble according to the different assemblies of selectivity circuit breaker of the present invention and their positions in housing.Described assembly describes Fig. 4 to Fig. 7 below.Thus, described locked component (9) is contained in shoulder (7), in the space (A) that Fig. 1 limits.The part (B) of Fig. 1 is occupied by major circuit components (10), major circuit components is connected to screw framework (11) via welding braided part (26), and screw framework forms the jockey exposing from shell nozzle (5).In this case, another jockey (12) is a part for arc extinguishing assembly (13), and arc extinguishing assembly occupies the part (C) of housing.This assembly (13) also comprises the distance piece be made up of insulating material (14) and secondary circuit assembly (15) (or more specifically the resistance (16) of described secondary circuit assembly (15)), distance piece limits extinguisher function, occupies and is no more than 70% of the middle product width of part (C).In top, the second heat bimetal strip (17) of same assembly and secondary moving contact (18) are in fact arranged in the volume (A) of shoulder (7).So, they separate by another distance piece (19) and the locking piece (9) that also occupies this shoulder (7), another distance piece (19) makes the fixed contact of described locking piece (9) and secondary circuit (20) and the upper portion insulating with main bimetal strip (21), and secondary circuit and main bimetal strip are all derived from major circuit components (10).The carrier (22) that is arranged in the same space of shoulder (7) makes the motion of main bimetal strip (21) and secondary bimetal strip (17) to be sent to locking piece (9), to start locking piece there is extended problem in facility time.
(traditional) shown in Fig. 4 locking piece be arranged on can as single parts handled and the assembly that transmits in.On the one hand, this locking piece operates routinely, makes, in the time of the deflecting action below-center offset locking piece of carrier (22) at one of main bimetal strip (21) or secondary bimetal strip (17), to allow main contact and secondary contact to disconnect.On the other hand, on other direction rotary control knob (8) make can be by connecting main contact and the secondary contact described product of resetting again.The mechanical organ of locking piece maintains by two side covers (23,23 '), and two side covers keep the form of described assembly in even and individual components (9).
Major circuit components (10) is shown in Figure 5, and is also arranged to handle and to transmit with discrete component.It comprises magnetic coil (24), main bimetal strip (21), active contact (32) and arc plate (25), and arc plate is expanded towards arc-extinguishing tube, and expands towards the part (C) of housing thus.Described assembly (10) also comprises the jockey (11) (referring to Fig. 3) with framework and screw, and it is fastened to other parts by braided part (26).As mentioned above, major circuit components occupies the part (B) of housing, have towards partly (A) and (C) projection of expansion, or rather, the top of bimetal strip (21) and secondary fixed contact (20) are towards part (A), be shoulder (7) expansion, arc plate (25) is towards part (C) expansion.
Described part (C) is divided into two adjacent spaces (seeing Fig. 2 and Fig. 7) by distance piece (14), described distance piece (14) is not centered in the width of described housing, but in the assembly of arc extinguishing shown in Fig. 7, its lateral dimension is no more than 70% of part (C), and remaining at least 30% part is mainly occupied by the resistance (16) of Fig. 6.The top of resistance is bimetal strip (17) and the secondary moving contact (18) of secondary circuit, and secondary moving contact is connected to the bimetal strip (17) of secondary circuit by braided part (26 ').The bimetal strip (17) of secondary circuit and secondary moving contact (18) parts are placed on by distance piece (19) being positioned to residue 30% space providing in the width of shoulder (7).
Fig. 7 also illustrates the decomposition view of arc extinguishing assembly (13), in the time that arc extinguishing assembly has been installed, arc extinguishing assembly forms the assembly of handling and transmitting as single parts as other assembly, and other assembly is: the locking piece (9) of the secondary circuit (15) of Fig. 6, the main circuit (10) of Fig. 5 and Fig. 4.Arc extinguishing assembly mainly comprises the lamination (27) of deionization sheet metal, is connected to main fixed contact (28) and horizontal two flanges (30) of electric arc towards the space of lamination (27) that limit of the jockey (12) of tape frame and screw via rigidity terminal (29), and described flange (30) all has barricade (31).
Fig. 3 is illustrated in fastening cover shell (2) to obtain shown in Fig. 1 before final products, mounted according to the assembly of circuit breaker of the present invention.
Adopt all designs of even separate functional blocks (the single parts that each formation is to be installed) to make very easily and neatly to realize the industrialization of product in the time of assembling and monitoring.
Compared with the selectivity circuit breaker of prior art, the structural change occurring due to the present invention allows number of components to reduce approximately 20%.
Claims (10)
1. a selectivity circuit breaker, be positioned at by two and half housing section (1,2) in the constructed insulation shell forming, described housing is the T shape of putting upside down, form the first parallelepiped portion and shoulder, described the first parallelepiped portion is take substrate (3) as bottom and be positioned under described shoulder (7), described shoulder is also parallelepiped, and substantially placed in the middle about described the first parallelepiped portion, two of the left and right part (B distinguishing respectively of described the first parallelepiped portion, C) limited by central transverse plane, described circuit breaker comprises:
-jockey (11; 12); make to connect via the upstream and downstream terminal of circuit breaker the conductor of circuit to be protected; main branch road is arranged between the upstream and downstream terminal of circuit breaker; described main branch road comprises main thermal actuator (21), a pair of corresponding active contact (32) and main fixed contact (28) and main magnetic actuator (24); described main magnetic actuator can with these main contacts (32; 28) in circuit to be protected in parallel, in the situation of circuit for generating short circuit, make described contact (32; 28) separate
-secondary branch road, comprises a pair of corresponding secondary moving contact (18) and secondary fixed contact (20), second heat actuator (17) and resistance (16),
-mechanical caging actuator, by described main thermal actuator (21) and second heat actuator (17) and/or disconnect described active contact (32) and secondary moving contact (18) by the coupling part of adjacent electric equipment
-control handle (8), stretches out from the front (6) relative with described substrate (3) of described housing, the described locking piece (9) of can resetting, and respectively with described contact (32,28; 18,20) switch on and off between two corresponding positions rotated, and
-arc-extinguishing tube (13),
It is characterized in that, described circuit breaker comprises multiple differences of being positioned in the housing that width is not more than 1.5 moulds and assembly independently:
-locked component (9);
-major circuit components (10), comprises main magnetic actuator (24), main thermal actuator (21), the arc plate (25) of contact (32), secondary fixed contact (20) and arc-extinguishing tube initiatively;
-arc extinguishing assembly (13), comprises the lamination (27) of deionization plate, two side flanges (30) all with barricade (31) and main fixed contact (28);
-secondary circuit assembly (15), comprises resistance (16), second heat actuator (17) and secondary moving contact (18).
2. selectivity circuit breaker according to claim 1, is characterized in that, described locked component (9) is arranged in described shoulder (7), the horizontal space occupying be less than or equal to described shoulder (7) width 70%.
3. according to the selectivity circuit breaker described in aforementioned claim any one, it is characterized in that, described locked component (9) is assembled between two the side covers (23,23 ') for the parts of this fastening lock locking assembly.
4. according to the selectivity circuit breaker described in claim 2 or 3, it is characterized in that, the secondary fixed contact (20) of major circuit components (10) and the free end of main thermal actuator (21), the secondary moving contact (18) of secondary circuit assembly (15) and second heat actuator (17), and can be by thermal actuator (21, 17) carrier (22) that is connected to described locked component (9) is also arranged in shoulder (7), be arranged in the residue horizontal space of the width of shoulder (7), the distance piece (19) of being made up of insulating material inserts between two horizontal spaces, described two horizontal spaces be formed for respectively locked component (9) the width that is no more than shoulder (7) 70% space and be formed at least 30% space of the width that accounts for shoulder (7) of described residue horizontal space.
5. according to the selectivity circuit breaker described in aforementioned claim any one, it is characterized in that, described second heat actuator (17) is placed towards the right wall of described shoulder (7).
6. according to selectivity circuit breaker described in aforementioned claim any one, it is characterized in that, described main circuit breaker assembly (10) is mainly positioned in the left part (B) of the first parallelepiped portion.
7. according to the selectivity circuit breaker described in aforementioned claim any one, it is characterized in that, the jockey (11) with framework and screw is attached to described major circuit components (10) by conductive braided fabric part (26).
8. according to the selectivity circuit breaker described in aforementioned claim any one, it is characterized in that, described arc extinguishing assembly (13) is arranged in the right part (C) of described the first parallelepiped portion, the horizontal space occupying be no more than described right part (C) width 70%.
9. according to the selectivity circuit breaker described in aforementioned claim any one, it is characterized in that, described arc extinguishing assembly (13) comprises via rigidity terminal (29) and is fixed to the tape frame of main fixed contact (28) and the jockey (12) of screw.
10. selectivity circuit breaker according to claim 8 or claim 9, it is characterized in that, the resistance (16) of described secondary circuit assembly (15) is arranged in the residue horizontal space of the width of right part (C), the distance piece (14) be made up of insulating material inserts between two horizontal spaces, two horizontal spaces be formed for respectively arc extinguishing assembly (13) the width that is no more than described right part (C) 70% space and at least 30% space of the width that accounts for described right part (C) of resistance (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12306688.8A EP2750157B1 (en) | 2012-12-27 | 2012-12-27 | Selective circuit-breaker arranged in a modular case |
| EP12306688.8 | 2012-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103903917A true CN103903917A (en) | 2014-07-02 |
| CN103903917B CN103903917B (en) | 2016-03-16 |
Family
ID=47603170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310757458.7A Active CN103903917B (en) | 2012-12-27 | 2013-12-27 | Be positioned at the selectivity circuit breaker that can construct in housing |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2750157B1 (en) |
| CN (1) | CN103903917B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799364A (en) * | 2017-12-01 | 2018-03-13 | 江苏创能电器有限公司 | One kind electric leakage breaker of plastic casing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06325680A (en) * | 1993-04-07 | 1994-11-25 | Merlin Gerin | Multipolar breaker |
| CN1108000A (en) * | 1994-02-10 | 1995-09-06 | 松下电工株式会社 | A circuit breaker |
| US20020105770A1 (en) * | 2001-02-02 | 2002-08-08 | Seese Daniel Ray | Circuit breaker and electrical distribution panel employing the same |
| EP1365432A1 (en) * | 2002-05-21 | 2003-11-26 | HAGER ELECTRO GmbH | Circuit and/or apparatus protection switch |
| JP2006073200A (en) * | 2004-08-31 | 2006-03-16 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN101170027A (en) * | 2006-10-23 | 2008-04-30 | 哥维斯股份公司 | Automatic reset and self-test device particularly for residual current operated circuit breakers and the like |
| CN101923987A (en) * | 2009-06-09 | 2010-12-22 | 浙江科都电气制造有限公司 | Improved breaker |
| KR101024128B1 (en) * | 2008-02-21 | 2011-03-22 | 파나소닉 덴코 덴로 가부시키가이샤 | Circuit breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10222360A1 (en) * | 2003-02-07 | 2003-12-04 | Hager Electro Gmbh | Line and/or equipment excess current/short circuit protection switch has first separation point, magnet mechanism and slower movement mechanism in series in main current path from input to output |
| DE10305069A1 (en) * | 2002-05-21 | 2004-01-15 | Hager Electro Gmbh | Electrical resistance for use in protective switching device, especially power circuit breaker, consists of band of electrically conductive material wound with insulating layer between windings |
| DE102008017472A1 (en) * | 2007-04-28 | 2008-11-06 | Abb Ag | Service switching device |
-
2012
- 2012-12-27 EP EP12306688.8A patent/EP2750157B1/en active Active
-
2013
- 2013-12-27 CN CN201310757458.7A patent/CN103903917B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06325680A (en) * | 1993-04-07 | 1994-11-25 | Merlin Gerin | Multipolar breaker |
| CN1108000A (en) * | 1994-02-10 | 1995-09-06 | 松下电工株式会社 | A circuit breaker |
| US20020105770A1 (en) * | 2001-02-02 | 2002-08-08 | Seese Daniel Ray | Circuit breaker and electrical distribution panel employing the same |
| EP1365432A1 (en) * | 2002-05-21 | 2003-11-26 | HAGER ELECTRO GmbH | Circuit and/or apparatus protection switch |
| JP2006073200A (en) * | 2004-08-31 | 2006-03-16 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN101170027A (en) * | 2006-10-23 | 2008-04-30 | 哥维斯股份公司 | Automatic reset and self-test device particularly for residual current operated circuit breakers and the like |
| KR101024128B1 (en) * | 2008-02-21 | 2011-03-22 | 파나소닉 덴코 덴로 가부시키가이샤 | Circuit breaker |
| CN101923987A (en) * | 2009-06-09 | 2010-12-22 | 浙江科都电气制造有限公司 | Improved breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2750157B1 (en) | 2015-06-24 |
| CN103903917B (en) | 2016-03-16 |
| EP2750157A1 (en) | 2014-07-02 |
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