CN103050341B - Universal plastic-casing Shell of circuit breaker, breaker of plastic casing and residual current circuit breaker - Google Patents
Universal plastic-casing Shell of circuit breaker, breaker of plastic casing and residual current circuit breaker Download PDFInfo
- Publication number
- CN103050341B CN103050341B CN201210557622.5A CN201210557622A CN103050341B CN 103050341 B CN103050341 B CN 103050341B CN 201210557622 A CN201210557622 A CN 201210557622A CN 103050341 B CN103050341 B CN 103050341B
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- breaker
- plastic
- residual current
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Breakers (AREA)
Abstract
The present invention relates to a kind of universal plastic-casing Shell of circuit breaker, breaker of plastic casing and residual current circuit breaker, the structure of universal plastic-casing Shell of circuit breaker, make breaker of plastic casing and residual current circuit breaker structure overall dimensions, installation dimension is consistent.Component universality reaches more than 95%.Namely realize volume not increase, reduce development cost and die cost again.And facilitate user installation, exchange.The residual current circuit breaker of this structure and breaker of plastic casing adopt consistent appearance size and outward appearance.Inner arc quenching system, contact system, operating mechanism is completely the same, and its difference is tripper structure.
Description
Technical field
The present invention relates to a kind of universal plastic-casing Shell of circuit breaker and a kind of breaker of plastic casing and residual current circuit breaker, specifically just can realize breaker of plastic casing by the simple replacement of part and mould the universal plastic-casing Shell of circuit breaker that shell residual current circuit breaker changes, belonging to low-voltage electrical apparatus applied technical field.
Background technology
The effect of breaker of plastic casing is: when transshipping, short circuit and under voltage, can protection circuit and power supply not be damaged.And the effect of moulding shell residual current circuit breaker is: get an electric shock to there being the person of fatal risk and provide indirect contact to protect, and prevent insulation of electrical installation from damaging the disasters such as the fire caused.Due to the difference of circuit breaker and residual current circuit breaker above-mentioned functions, the two does not have versatility.
According to above-mentioned functions difference, residual current circuit breaker, compared to circuit breaker, needs to increase zero sequence current mutual inductor, wiring board, the functional parts such as leakage tripping device.Major part producer, by redesigning the contact system of circuit breaker, operating mechanism and tripper structure, can make residual current circuit breaker have less volume and comparatively simple structure.Differ greatly between residual current circuit breaker after redesign its structure and original circuit breaker, in processing preparation process, need to drop into new mould, there is the defect that cost is high.
Therefore some technical staff propose when the structure of original circuit breaker remains unchanged, and directly increase the electric leakage dropout module with creepage protection function, just circuit breaker can be adapted as residual current circuit breaker.Directly electric leakage dropout module is disassembled and just residual current circuit breaker can be adapted as circuit breaker, so can facilitate between circuit breaker and residual current circuit breaker and exchange, also cut down finished cost further.As existing patent documentation CN202102990U discloses a kind of dismountable electric leakage module of circuit breaker, comprise shell, zero sequence current mutual inductor is provided with in shell, zero sequence current mutual inductor is provided with secondary winding, shell is also provided with trip signal and draws interface, this trip signal draws the secondary winding of the input connection zero sequence current mutual inductor of interface, and shell upper is provided with the input terminal for being connected with circuit breaker electric source output terminal, and outer casing underpart is provided with the outlet terminal be connected with load.As shown in Figure 1, electric leakage dropout module is arranged on the leading-out terminal of circuit breaker, although convenient and simple to its structure by such scheme, mould less investment, if but these parts are joined in circuit breaker, the volume of circuit breaker will certainly be increased, make the structure of circuit breaker become complicated.And the general space being suitable for installing circuit breaker is all very little, can make troubles to the distribution in space and Appropriate application if increase electric leakage dropout module.Therefore how do not increase circuit breaker usage space again different increase the prerequisite of cost under the structure realized between circuit breaker and residual current circuit breaker exchange, be technical staff's difficult problem urgently to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention be circuit breaker of the prior art and residual current circuit breaker when exchanging complex structure or cost higher, thus provide a kind of and circuit breaker and residual current circuit breaker can be facilitated to exchange and do not need to increase the universal plastic-casing Shell of circuit breaker of circuit breaker usage space, and a kind ofly utilize the breaker of plastic casing of this housing and a kind of residual current circuit breaker utilizing this housing.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of universal plastic-casing Shell of circuit breaker, comprising:
Pedestal, is provided with the functional unit of adjacent correspondence four phase places in it;
Each functional unit comprises:
Arc control device, arrange near described pedestal side, arrange U-shaped arc extinguishing grid pieces in it, the U-shaped opening of described U-shaped arc extinguishing grid pieces is back to described pedestal;
Contact system, comprises the fixed contact be arranged at bottom described arc control device, and the moving contact coordinated with described fixed contact, and it is inner that described moving contact one end is positioned at described U-shaped arc extinguishing grid pieces, and the other end is leading-out terminal, and described leading-out terminal is connected with operating mechanism;
In described pedestal, the position adjacent with described operating mechanism is provided with the headspace for installing release, and one end of described release is connected with the leading-out terminal of described moving contact, is fixed in described pedestal.
A kind of breaker of plastic casing, comprises above-mentioned universal plastic-casing Shell of circuit breaker, and is arranged at the open circuit release in described headspace.
Described open circuit release comprises:
Support, is fixed on described base interior, is connected with the leading-out terminal of described moving contact;
Armature, is riveted together with described support, is fixed on described frame upper;
Iron core, is riveted together with described support, is fixed on described support bottom;
Thermal element, is riveted on the position between described armature and described iron core on described support,
Connecting portion, be concave character type, its one end is welded on described thermal element, and the other end is connected with fixture;
Described fixture is fixedly installed in described pedestal.
Described open circuit release also comprises П shape phase insulating board, is provided with the П shape draw-in groove coordinated with described П shape phase insulating board in described base bottom.
A kind of residual current circuit breaker, comprises above-mentioned universal plastic-casing Shell of circuit breaker, and is arranged at the leakage tripping device in described headspace.
Described leakage tripping device comprises: annular mutual inductor coil, is fixed on the support in described pedestal;
Circuit board, is fixed on described pedestal;
Leakage tripping device connecting portion, one end is fixedly connected with described circuit board, and the other end is connected with the leading-out terminal of described moving contact through the inside of described annular mutual inductor coil.
Described leakage tripping device connecting portion is U-shaped.
The said structure of the application compared with prior art, has following beneficial effect:
(1) structure of universal plastic-casing Shell of circuit breaker in the present embodiment, make breaker of plastic casing and residual current circuit breaker structure overall dimensions, installation dimension is consistent.Component universality reaches more than 95%.Namely realize volume not increase, reduce development cost and die cost again.And facilitate user installation, exchange.The residual current circuit breaker of this structure and breaker of plastic casing adopt consistent appearance size and outward appearance.Inner arc quenching system, contact system, operating mechanism is completely the same, and its difference is tripper structure.
(2) breaker of plastic casing in the application, is designed to concave character type by connecting portion and leads directly to wire, moving contact and leading-out terminal gusset piece is directly connected by spot welding.Simultaneously because of pedestal release position A, B, C three-phase is spacious logical, does not cut off.Electric clearance is not enough, easily phase fault occurs.Our alternate center on pedestal devises phase insulating board, to improve electrical apparatus insulation for this reason.Pedestal devises insulation board " ∏ " shape draw-in groove.In order to fixed insulation plate.
(3) residual current circuit breaker in the application, leakage, breaking release is adopted clapper-type electromagnetic device, and to iron core, armature, support is optimized design, significantly reduced volume.Abdicate space can to residual current circuit breaker parts.Release thermal element is designed to U-shaped.Pierce into the center circle of instrument transformer, one end is fixed on pedestal leading-out terminal.Meanwhile, leakage tripping device utilizes the space on C item conducting system top.Be fixed on pedestal, button coordinates with lid, and release pull bar coordinates with draw bar.Complete earth leakage protective separating brake function.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is the mounting structure schematic diagram of a kind of dismountable electric leakage module of circuit breaker that prior art provides;
Fig. 2 is the structural representation of a kind of plastic case breaker casing provided by the invention;
Fig. 3 is a kind of breaker of plastic casing structural representation provided by the invention;
Fig. 4 is a kind of residual current circuit breaker structural representation provided by the invention;
Fig. 5 is the structural representation of a kind of open circuit release provided by the invention;
Fig. 6 is a kind of leakage, breaking modular structure schematic diagram provided by the invention;
Fig. 7 is a kind of П type panel structure schematic diagram provided by the invention.
Wherein Reference numeral is: 1-pedestal, 2-arc control device, 3-contact system, 4-operating mechanism, 5-headspace, 6-open circuit release, 601-support, 602-armature, 603-iron core, 604-connecting portion, 605-fixture, 606-thermal element, 62-phase insulating board, 7-leakage tripping device, 71-annular mutual inductor coil, 72-leakage tripping device connecting portion, 73-circuit board.
Embodiment
A kind of universal plastic-casing Shell of circuit breaker of the present invention, comprising: pedestal 1, is provided with the functional unit of adjacent correspondence four phase places in it; Each functional unit comprises: arc control device 2, and arrange near described pedestal 1 side, arrange U-shaped arc extinguishing grid pieces in it, the U-shaped opening of described U-shaped arc extinguishing grid pieces deviates from described pedestal 1 and arranges; Contact system 3, comprises the fixed contact be arranged at bottom described arc control device 2, and the moving contact coordinated with described fixed contact, and it is inner that described moving contact one end is positioned at described U-shaped arc extinguishing grid pieces, and the other end is connected with operating mechanism 4; In described pedestal 1, the position adjacent with described operating mechanism 4 is provided with the headspace 5 for installing release, and described release one end is connected with the leading-out terminal of described moving contact, and the other end is fixed in described pedestal 1.
The structure of universal plastic-casing Shell of circuit breaker in the present embodiment, make breaker of plastic casing and residual current circuit breaker structure overall dimensions, installation dimension is consistent.Component universality reaches more than 95%.Namely realize volume not increase, reduce development cost and die cost again.And facilitate user installation, exchange.The residual current circuit breaker of this structure and breaker of plastic casing adopt consistent appearance size and outward appearance.Inner arc quenching system, contact system, operating mechanism is completely the same, and its difference is tripper structure.
The present embodiment also provides a kind of breaker of plastic casing, comprises above-mentioned universal plastic-casing Shell of circuit breaker, and is arranged at the open circuit release 6 in described headspace 5.Described open circuit release 6 comprises: support 601, is fixed on described pedestal 1 inner, is connected with the leading-out terminal of described moving contact; Armature 602, is riveted together with described support 601, is fixed on described support 601 top; Iron core 603, is riveted together with described support 601, is fixed on described support 601 bottom; Thermal element 606, being riveted on the position between described armature 602 and described iron core 603 on described support 1, connecting portion 604, is concave character type, and its one end is welded on described thermal element 606, and the other end is connected with fixture 605; Described fixture 605 is fixedly installed in described pedestal 1.Described open circuit release 6 also comprises П shape phase insulating board 62, is provided with the П shape draw-in groove coordinated with described П shape phase insulating board 62 bottom described pedestal 1.
Connecting portion is designed to concave character type and leads directly to wire by said structure, moving contact and leading-out terminal gusset piece is directly connected by spot welding.Simultaneously because of pedestal release position A, B, C three-phase is spacious logical, does not cut off.Electric clearance is not enough, easily phase fault occurs.Our alternate center on pedestal devises phase insulating board, to improve electrical apparatus insulation for this reason.Pedestal devises insulation board " ∏ " shape draw-in groove.In order to fixed insulation plate.
The present embodiment also provides a kind of residual current circuit breaker, comprises above-mentioned universal plastic-casing Shell of circuit breaker, and is arranged at the leakage tripping device 7 in described headspace 5.Described leakage tripping device 7 comprises: annular mutual inductor coil (71), is fixed on the support in described pedestal 1; Circuit board 73, is fixed on described pedestal 1; Leakage tripping device connecting portion 72, one end is fixedly connected with described circuit board 73, and the other end is connected with the leading-out terminal of described moving contact through the inside of described annular mutual inductor coil 71.
Leakage, breaking release is adopted clapper-type electromagnetic device by this structure, and to iron core, armature, support is optimized design, significantly reduced volume.Abdicate space can to residual current circuit breaker parts.Release thermal element is designed to U-shaped.Pierce into the center circle of instrument transformer, one end is fixed on pedestal leading-out terminal.Meanwhile, leakage tripping device utilizes the space on C item conducting system top.Be fixed on pedestal, button coordinates with lid, and release pull bar coordinates with draw bar.Complete earth leakage protective separating brake function.
The application only changes connecting portion structure and increases phase insulating board, well solves breaker of plastic casing and the skimble-scamble problem of residual current circuit breaker internal structure.Realize overall dimension identical, the maximization of universal component, shortens the construction cycle, reduces production cost, improves the performance of enterprises.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (7)
1. a universal plastic-casing Shell of circuit breaker, comprising:
Pedestal (1), is provided with the functional unit of adjacent correspondence four phase places in it;
Each functional unit comprises:
Arc control device (2), arrange near described pedestal (1) side, arrange U-shaped arc extinguishing grid pieces in it, the U-shaped opening of described U-shaped arc extinguishing grid pieces is back to described pedestal (1);
Contact system (3), comprise the fixed contact being arranged at described arc control device (2) bottom, and the moving contact to coordinate with described fixed contact, it is inner that described moving contact one end is positioned at described U-shaped arc extinguishing grid pieces, the other end is leading-out terminal, and described leading-out terminal is connected with operating mechanism (4);
It is characterized in that:
In described pedestal (1), the position adjacent with described operating mechanism (4) is provided with the headspace (5) for installing open circuit release or leakage tripping device, one end of described open circuit release or leakage tripping device is connected with the leading-out terminal of described moving contact, the other end is fixed in described pedestal (1), and described headspace (5) is for facilitating breaker of plastic casing and residual current circuit breaker to exchange and not needing to increase circuit breaker usage space.
2. a breaker of plastic casing, is characterized in that:
Comprise universal plastic-casing Shell of circuit breaker according to claim 1, and be arranged at the open circuit release (6) in described headspace (5).
3. breaker of plastic casing according to claim 2, is characterized in that:
Described open circuit release (6) comprising:
Support (601), is fixed on described pedestal (1) inner, is connected with the leading-out terminal of described moving contact;
Armature (602), is riveted together with described support (601), is fixed on described support (601) top;
Iron core (603), is riveted together with described support (601), is fixed on described support (601) bottom;
Thermal element (606), is riveted on the upper position between described armature (602) and described iron core (603) of described support (601);
Connecting portion (604) is concave character type, and its one end is welded on described thermal element (606), and the other end is connected with fixture (605);
Described fixture (605) is fixedly installed in described pedestal (1).
4. breaker of plastic casing according to claim 3, is characterized in that:
Described open circuit release (6) also comprises П shape phase insulating board (62), and described pedestal (1) bottom is provided with the П shape draw-in groove coordinated with described П shape phase insulating board (62).
5. a residual current circuit breaker, is characterized in that: comprise universal plastic-casing Shell of circuit breaker according to claim 1, and is arranged at the leakage tripping device (7) in described headspace (5).
6. residual current circuit breaker according to claim 5, is characterized in that:
Described leakage tripping device (7) comprising:
Annular mutual inductor coil (71), is fixed on the support in described pedestal (1);
Circuit board (73), is fixed on described pedestal (1);
Leakage tripping device connecting portion (72), one end is fixedly connected with described circuit board (73), and the other end is connected with the leading-out terminal of described moving contact through the inside of described annular mutual inductor coil (71).
7. residual current circuit breaker according to claim 6, is characterized in that:
Described leakage tripping device connecting portion (72) is for U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210557622.5A CN103050341B (en) | 2012-12-20 | 2012-12-20 | Universal plastic-casing Shell of circuit breaker, breaker of plastic casing and residual current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210557622.5A CN103050341B (en) | 2012-12-20 | 2012-12-20 | Universal plastic-casing Shell of circuit breaker, breaker of plastic casing and residual current circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103050341A CN103050341A (en) | 2013-04-17 |
| CN103050341B true CN103050341B (en) | 2015-12-02 |
Family
ID=48062947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210557622.5A Active CN103050341B (en) | 2012-12-20 | 2012-12-20 | Universal plastic-casing Shell of circuit breaker, breaker of plastic casing and residual current circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103050341B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465234A (en) * | 2013-09-19 | 2015-03-25 | 天津中电华利电器科技集团有限公司 | Circuit breaker molded case |
| CN104835691B (en) * | 2015-03-04 | 2016-09-28 | 浙江天正电气股份有限公司 | A kind of common base and Thermomagnetic type and the electronic type molded case circuit breaker of applying this pedestal |
| CN106128869A (en) * | 2016-08-19 | 2016-11-16 | 天津市百利电气有限公司 | There is the quadrupole moulded case circuit breaker of creepage protection function |
| CN108807091B (en) * | 2017-04-26 | 2024-05-03 | 海格科技股份有限公司 | Automatic charge control switch with residual current action |
| CN115346842B (en) * | 2021-05-13 | 2024-09-20 | 上海良信电器股份有限公司 | Circuit breaker structure for reducing temperature rise |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2368156Y (en) * | 1999-04-04 | 2000-03-08 | 吴赛乐 | Ejecting-type tripping-mode leakage breaker |
| CN2622847Y (en) * | 2003-01-07 | 2004-06-30 | 王卫东 | Residual current protector |
| CN1624847A (en) * | 2004-12-14 | 2005-06-08 | 常熟开关制造有限公司(原常熟开关厂） | Plastic casing circuit breaker |
| CN202084493U (en) * | 2011-05-12 | 2011-12-21 | 台安科技(无锡)有限公司 | Electromagnetic instantaneous trip adjusting device of low-voltage circuit breaker |
| CN202084494U (en) * | 2011-06-16 | 2011-12-21 | 浙江加西亚电子电器有限公司 | Breaker with plastic shell |
| CN202940199U (en) * | 2012-12-20 | 2013-05-15 | 浙江天正电气股份有限公司 | Universal molded cased circuit breaker housing, molded case circuit breaker and residual current circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038100Y (en) * | 2007-04-23 | 2008-03-19 | 法泰电器（江苏）股份有限公司 | Circuit breaker possessing residual current electric protection and liquid crystal display |
-
2012
- 2012-12-20 CN CN201210557622.5A patent/CN103050341B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2368156Y (en) * | 1999-04-04 | 2000-03-08 | 吴赛乐 | Ejecting-type tripping-mode leakage breaker |
| CN2622847Y (en) * | 2003-01-07 | 2004-06-30 | 王卫东 | Residual current protector |
| CN1624847A (en) * | 2004-12-14 | 2005-06-08 | 常熟开关制造有限公司(原常熟开关厂） | Plastic casing circuit breaker |
| CN202084493U (en) * | 2011-05-12 | 2011-12-21 | 台安科技(无锡)有限公司 | Electromagnetic instantaneous trip adjusting device of low-voltage circuit breaker |
| CN202084494U (en) * | 2011-06-16 | 2011-12-21 | 浙江加西亚电子电器有限公司 | Breaker with plastic shell |
| CN202940199U (en) * | 2012-12-20 | 2013-05-15 | 浙江天正电气股份有限公司 | Universal molded cased circuit breaker housing, molded case circuit breaker and residual current circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103050341A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103050341B (en) | Universal plastic-casing Shell of circuit breaker, breaker of plastic casing and residual current circuit breaker | |
| CN200993948Y (en) | Safety earth fault circuit breaker | |
| CN104599911B (en) | Arc fault circuit breaker | |
| CN102142339B (en) | Miniature circuit breaker with current leakage protector | |
| CN201490118U (en) | Electric-shock protection structure for residual current circuit breakers and moulded case circuit breakers | |
| CN104377585A (en) | Modular intelligent box type fixed inflatable high-voltage AC metal enclosure switching equipment | |
| CN106960759B (en) | Monopole insulating cylinder and the monopole arc-chutes and on-load switch for using the monopole insulating cylinder | |
| JP2012084470A (en) | Earth leakage breaker for distribution board and distribution board system | |
| WO2019169950A1 (en) | Railway power supply system and outdoor parallel modular device for railway power supply system | |
| JP5541699B2 (en) | Power distribution facilities | |
| CN204216476U (en) | A kind of modularization intelligent box fixes gas-filled type high-voltage alternating metal enclosed switchgear | |
| CN203882861U (en) | Column type circuit breaker integrated with electronic current transformer | |
| CN202940199U (en) | Universal molded cased circuit breaker housing, molded case circuit breaker and residual current circuit breaker | |
| CN203607348U (en) | Arc fault breaker | |
| CN202564144U (en) | AC contactor | |
| CN201717204U (en) | Compact leakage circuit breaker shell provided with middle cover | |
| CN201464587U (en) | Residual current type monitoring detector for electrical fire protection | |
| CN201556929U (en) | Lead wire and grounding resistance comprehensive cabinet of neutral point of AC generator | |
| CN109189045A (en) | Do not have a power failure and verifies distant control function tooling and system | |
| CN205582770U (en) | Circuit breaker on two switching of power's post | |
| CN203799988U (en) | Plastic casing electricity leakage breaker | |
| CN208401531U (en) | A kind of monitor-type overvoltage protection | |
| CN204088019U (en) | Solid insulation switch cabinet current mutual inductor special | |
| CN201122502Y (en) | Combined transformer structure | |
| CN207781509U (en) | A kind of power-down protection apparatus of industrial personal computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |