CN102915884B - Molded case circuit breaker - Google Patents
Molded case circuit breaker Download PDFInfo
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- CN102915884B CN102915884B CN201210400781.4A CN201210400781A CN102915884B CN 102915884 B CN102915884 B CN 102915884B CN 201210400781 A CN201210400781 A CN 201210400781A CN 102915884 B CN102915884 B CN 102915884B
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- breaker
- plastic casing
- wiring board
- pedestal
- wire
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- 238000002955 isolation Methods 0.000 claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 66
- 230000001681 protective effect Effects 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract 5
- 239000004020 conductor Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 230000000739 chaotic effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Breakers (AREA)
Abstract
The invention discloses a molded case circuit breaker which comprises a substrate (1) and a circuit board (2), wherein a tripper and a mutual inductor are arranged in the substrate; the installing surface of the substrate is provided with an isolation structure for isolating the circuit board from the components in the substrate, and the circuit board is arranged in the isolation structure; the installing surface is provided with a wiring hole, and a three-phase power supply conductor of the circuit board, after passing through the wiring hole, is connected with a power supply component; and a conductor for electrically connecting the circuit board with the tripper and a signal line for electrically connecting the circuit board with the mutual inductor, after passing through the wiring hole, enter the inside of the substrate. The molded case circuit breaker can effectively reduce the influence of heating elements and the internal closed narrow space on the temperature rise of the circuit board, so that the work of the circuit board is more stable.
Description
Technical field
The present invention relates to a kind of breaker of plastic casing, belong to Low Voltage Electrical Apparatus.
Background technology
Circuit breaker is a kind of for distributing electric energy, power circuit and motor etc. being carried out to the contact maker of real-time guard; it can according to normal, the overload of circuit, short circuit and the state such as under-voltage; in time carry, close and cut-off the electric current in normal loop, thus ensure that the safety of producing is carried out.
Breaker of plastic casing is as the one in circuit breaker, and it is using plastic insulation as the shell of device, and after actual current exceedes escape set point, automatically can cut off electric current equally.In practical work process; the wiring board being arranged on breaker of plastic casing inside is the indispensable parts of earth leakage protective; the signal that it carry leakage current is taked, signal amplifies and the function of signal power contrast, effectively can protect the leakage current of harm circuit or equipment.
In existing breaker of plastic casing, all electric components such as contact, arc control device, instrument transformer, leakage tripping device and wiring board all seal installation in a plastic housing.In the space that breaker of plastic casing is limited, reserve sub-fraction for installing wiring board, wiring board is then connected with thermal element bimetal leaf and carries out power taking.But; wiring board is a kind of heater element inherently; be subject to the restriction of the breaker of plastic casing confined space simultaneously; the heat that wiring board self distributes can not leave in time; the heat that other element manipulation produce impels the temperature of wiring board to raise further and accelerates; thus easily cause the instability of components and parts work on wiring board, affect the earth leakage protective stability of whole breaker of plastic casing.
In addition, the lead-in wire of all electric elements is arranged in the housing of breaker of plastic casing simultaneously, causes lead-in wire to arrange unreasonable, chaotic.
Summary of the invention
Technical problem to be solved by this invention is the technical problem that in existing breaker of plastic casing, wiring board working temperature is too high and each electric component lead-in wire layout is chaotic, thus provides the favorably situated breaker of plastic casing that a kind of working temperature that effectively can either reduce wiring board can make again each electric component go between.
To achieve these goals, the invention provides a kind of breaker of plastic casing, comprising:
Pedestal, is provided with release, instrument transformer in described base interior;
Wiring board;
The installed surface of described pedestal is provided with the isolation structure element separation of described wiring board and described base interior opened, described wiring board is arranged in described isolation structure;
Described installed surface is provided with wiring hole, and the three phase supply wire of described wiring board is connected with power supply component through described wiring hole;
The wire that described wiring board is electrically connected with described release and the holding wire be electrically connected with described instrument transformer enter described base interior through described wiring hole.
In above-mentioned breaker of plastic casing, described installed surface is also provided with pressuring line groove, the wire that described three phase supply wire, described wiring board are electrically connected with described release and the holding wire be electrically connected with described instrument transformer is embedding is pressed in described pressuring line groove.
In above-mentioned breaker of plastic casing, described wiring hole comprises three phase supply hole, release fairlead and instrument transformer fairlead, described three phase supply hole, release fairlead and instrument transformer fairlead are separately positioned on the position of the close described power supply component of described installed surface, described release and described instrument transformer, and the wire that described three phase supply wire, described wiring board are electrically connected with described release and the holding wire be electrically connected with described instrument transformer are each passed through described three phase supply hole, release fairlead and instrument transformer fairlead and enter described base interior.
In above-mentioned breaker of plastic casing, described pressuring line groove comprises:
Three the first pressuring line grooves, arranged in parallel and be communicated with described three phase supply hole respectively;
Second pressuring line groove, is communicated with described release fairlead;
3rd pressuring line groove, is parallel to described second pressuring line groove and arranges and be communicated with described instrument transformer fairlead.
In above-mentioned breaker of plastic casing, described isolation structure is be opened in the open-work on described base mounting surface, and described wiring board is arranged in described open-work.
In above-mentioned breaker of plastic casing, described breaker of plastic casing also comprises sheath, and described wiring board is arranged in described sheath, described sheath is nested to be arranged in described open-work and the opening of described sheath outwardly.
In above-mentioned breaker of plastic casing, described three the first pressuring line grooves are all communicated with described second pressuring line groove.
In above-mentioned breaker of plastic casing, described isolation structure is be opened in the groove on described base mounting surface, and described wiring board is arranged in described groove.
In above-mentioned breaker of plastic casing, described breaker of plastic casing also comprises protective case, and described wiring board is arranged in protective case, described protective case to be arranged in described groove and the opening of described protective case outwardly.
In above-mentioned breaker of plastic casing, described second pressuring line groove and described 3rd pressuring line groove are arranged on described three the first pressuring line groove spacer regions each other.
In above-mentioned breaker of plastic casing, described power supply component is the screw being arranged on fastening thermal element in described three phase supply hole.
In above-mentioned breaker of plastic casing, the nut of described screw is fixedly installed conductive plate, described three phase supply wire is connected on described conductive plate.
In above-mentioned breaker of plastic casing, described breaker of plastic casing also comprises bottom, and described bottom is fixedly mounted on described installed surface.
In above-mentioned breaker of plastic casing, described bottom is provided with louvre.
In above-mentioned breaker of plastic casing, described breaker of plastic casing also comprises top cover, and described top cover is arranged on described pedestal.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) breaker of plastic casing of the present invention, its wiring board is arranged in the isolation structure on base mounting surface, and described wiring board is independent of base interior spatial placement, thus effectively reduce the heat radiation of heater element and the temperature rise of the wiring board caused, make wiring board work more stable.
(2) breaker of plastic casing of the present invention, the wire that the three phase supply wire of its wiring board, wiring board are electrically connected with base interior release and the holding wire that wiring board is electrically connected with instrument transformer is all embedding is pressed in the pressuring line groove of base mounting surface, such that the arrangement of above-mentioned cable is neat rationally, safety and stability.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is the perspective view of the breaker of plastic casing of first embodiment of the invention;
Fig. 2 is the schematic front view of the breaker of plastic casing of first embodiment of the invention;
Fig. 3 is the perspective view of the breaker of plastic casing of second embodiment of the invention;
Fig. 4 is the schematic front view of the breaker of plastic casing of second embodiment of the invention.
Description of reference numerals
1-pedestal, 2-wiring board, 3-open-work, 4-three phase supply hole, 5-release fairlead, 6-instrument transformer fairlead, 7-first pressuring line groove, 8-second pressuring line groove, 9-the 3rd pressuring line groove, 10-sheath, 11-groove, 12-protective case.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Embodiment one
As shown in Figure 1, embodiments of the invention one provide a kind of breaker of plastic casing, comprise pedestal 1 and wiring board 2, wherein, in the inside of described pedestal 1, release is installed, the electric components such as instrument transformer, the installed surface of described pedestal 1 is provided with by the element such as described release of described wiring board 2 with described pedestal 1 inside, the isolation structure that instrument transformer is kept apart, described wiring board 2 is arranged in described isolation structure, the described installed surface of described pedestal 1 is provided with wiring hole, to allow the three phase supply wire of described wiring board 2 through described wiring hole to be electrically connected with the power supply component of described pedestal 1 inside, it is inner and be connected with each self-corresponding element that the wire that described wiring board 2 and described release are electrically connected and the holding wire that is electrically connected with described instrument transformer enter described pedestal 1 through described wiring hole.
Due to the known technology being set to this area of electric component such as contact, arc control device, instrument transformer and the leakage tripping device etc. of breaker of plastic casing inside, and therefore not to repeat here, also do not show in each view.
In the present embodiment, as depicted in figs. 1 and 2, described isolation structure is be opened in the open-work 3 on described pedestal 1 installed surface, and described wiring board 2 is arranged in described open-work 3 with isolated with other electric elements of described pedestal 1 inside.
The mounting means of described wiring board 2 in described open-work 3 does not limit, as long as described wiring board 2 can be separated with other electric elements of described pedestal 1 inside; In the present embodiment, described wiring board 2 is set directly in the described open-work 3 of described pedestal 1 installed surface.Certainly, also install by the mode of the following stated.
As the execution mode that can convert; described breaker of plastic casing can further include sheath 10; described wiring board 2 is arranged in sheath 10; described sheath 10 is nested to be arranged in described open-work 3 and the opening of described sheath 10 towards the outside of described breaker of plastic casing; so not only achieve and fixed by the installation of described sheath 10 to described wiring board 2; arranging of described sheath 10 can also play a protective role to described wiring board 2 simultaneously, makes described wiring board 2 in the transport or installation process of described breaker of plastic casing from damage.
Described sheath 10 can be one-body molded with described pedestal 1, namely described sheath 10 be molded directly within described pedestal 1 installed surface on and to described pedestal 1 inner or outside extend and opening outwardly, or,
Described sheath 10 can with the split of described pedestal 1, namely described sheath 10 to be arranged on described pedestal 1 in modes such as buckles by described open-work 3 and opening outwardly.
Described wiring hole can be one, and namely to enter described pedestal 1 through described wiring hole inner simultaneously for the three phase supply wire of described wiring board 2, the wire be electrically connected with described release and the holding wire that is electrically connected with described instrument transformer.
Certainly, described wiring hole also can be multiple, namely in order to avoid the three phase supply wire of described wiring board 2, the wire be electrically connected with described release and the holding wire be electrically connected with described instrument transformer produce interference each other, as depicted in figs. 1 and 2, described wiring hole comprises three phase supply hole 4, release fairlead 5 and instrument transformer fairlead 6, wherein, described three phase supply hole 4, release fairlead 5 and instrument transformer fairlead 6 are separately positioned on the close described power supply component of described installed surface, the position of described release and described instrument transformer, or be arranged on and described power supply component, described release and the corresponding position of described instrument transformer.Like this, described three phase supply wire is each passed through each self-corresponding described three phase supply hole 4 and is connected with described power supply component, the described wire be electrically connected with release is connected with described release through described release fairlead 5, and described holding wire passes described instrument transformer fairlead 6 and is connected with described instrument transformer.
In order to make above-mentioned cable (three phase supply wire, wire and the holding wire) arrangement of described wiring board 2 rationally neat and safety and stability, as depicted in figs. 1 and 2, the described installed surface of described pedestal 1 is also provided with pressuring line groove, and the wire that described three phase supply wire, described wiring board 2 are electrically connected with described release and the holding wire that is electrically connected with described instrument transformer are simultaneously embedding to be pressed in described pressuring line groove and to be each passed through described three phase supply hole 4, release fairlead 5 and instrument transformer fairlead 6 to enter described pedestal 1 inner.
Equally, in order to avoid the three phase supply wire of described wiring board 2, the wire be electrically connected with described release and the holding wire be electrically connected with described instrument transformer produce interference each other, as depicted in figs. 1 and 2, described pressuring line groove comprises three the first pressuring line grooves 7, second pressuring line groove 8 and the 3rd pressuring line groove 9, wherein, described three the first pressuring line grooves 7 are arranged in parallel and be communicated with each self-corresponding described three phase supply hole 4 respectively, described second pressuring line groove 8 is communicated with described release fairlead 5, described 3rd pressuring line groove 9 is parallel to described second pressuring line groove 8 and arranges and be communicated with described instrument transformer fairlead 6.Like this, described three phase supply wire respectively embedding being pressed in described first pressuring line groove 7 is also connected with described power supply component through each self-corresponding described three phase supply hole 4, the described wire be electrically connected with release is embedding to be pressed in described second pressuring line groove 8 and to be connected with described release through described release fairlead 5, and described holding wire is embedding to be pressed in described 3rd pressuring line groove 9 and also to pass described instrument transformer fairlead 6 and be connected with described instrument transformer.
More reasonable in order to make the described cable of described wiring board 2 arrange, described three the first pressuring line grooves 7 are all communicated with described second pressuring line groove 8.Like this, after described three phase supply wire and the described wire be electrically connected with release are drawn from the same port of described sheath 10, the described wire be electrically connected with release is embedding to be pressed in described second pressuring line groove 8 and to be connected with described release through described release fairlead 5, described three phase supply wire is first embedding is pressed in described second pressuring line groove 8, enters respectively in respective described first pressuring line groove 7 be also connected with described power supply component through each self-corresponding described three phase supply hole 4 in the position that described second pressuring line groove 8 and described first pressuring line groove 7 communicate.
In the present embodiment, described power supply component is for being arranged on the screw (not shown) of fastening thermal element (bimetal leaf) in described three phase supply hole 4, and described three phase supply wire can be connected on respective described screw.In order to ensure the steadiness that described three phase supply wire is connected with described screw, the nut of described screw is fixedly installed conductive plate (not shown), described three phase supply wire is connected on described conductive plate.
The breaker of plastic casing of the present embodiment also comprises bottom (not shown), described bottom by securing member such as screw or and the mode of described pedestal clamping be fixedly mounted on described installed surface so that described wiring board 2 and described cable thereof are sealed up for safekeeping between described installed surface and described bottom.Described bottom can be provided with louvre, and louvre can be arranged on the position corresponding with described wiring board 2, to make described wiring board 2 fully and atmosphere, internal heat is shed in time.The quantity of louvre does not limit, can according to actual product need arrange.
On the basis of above-described embodiment, the described breaker of plastic casing in the present embodiment can also comprise top cover (not shown), and described top cover is arranged on described pedestal 1, to form the shell of breaker of plastic casing together with described pedestal 1.
Embodiment two
What the breaker of plastic casing in embodiment two and the distinctive points of the breaker of plastic casing in embodiment one were the different of different, described wiring board 2 mounting means of described isolation structure and described second pressuring line groove 8 with described 3rd pressuring line groove 9 arrangement is different, and other parts are in addition identical.
As shown in Figure 3 and Figure 4, described isolation structure is be opened in the groove 11 on described pedestal 1 installed surface, and described wiring board 2 is arranged in described groove 11 with isolated with other electric elements of described pedestal 1 inside.
The mounting means of described wiring board 2 in described groove 11 does not limit, as long as described wiring board 2 can be separated with other electric elements of described pedestal 1 inside; In the present embodiment, described wiring board 2 is set directly in the described groove 11 of described pedestal 1 installed surface.Certainly, also install by the mode of the following stated.
As the execution mode that can convert; described breaker of plastic casing can also arrange protective case 12 further; described wiring board 2 is arranged in protective case 12; described protective case 12 to be arranged in described groove 11 and the opening of described protective case 12 towards the outside of described breaker of plastic casing; so not only achieve and fixed by the installation of protective case 12 pairs of wiring boards 2; arranging of protective case 12 can also play a protective role to described wiring board 2 simultaneously, makes described wiring board 2 in the transport or installation process of described breaker of plastic casing from damage.
Be arranged in described protective case 12 with described wiring board 2 and described protective case 12 is arranged in described groove 11 corresponding, as shown in Figure 4, second pressuring line groove 8 of described pressuring line groove and the 3rd pressuring line groove 9 are separately positioned in described three the first pressuring line groove 7 spacer regions each other, thus it is more reasonable that the described cable of described wiring board 2 is arranged.
It should be noted that, in described breaker of plastic casing of the present invention, the quantity of described wiring hole and position are not limited to embodiment one and/or the quantity described in embodiment two and position, the change of concrete restriction and setting position can be carried out, as long as the cable that can realize described wiring board 2 is rationally inner across and into described pedestal 1 according to actual industrial demand.
Equally, the quantity of described pressuring line groove and arrangement are also not limited to embodiment one and/or the quantity described in embodiment two and arrangement, the change of concrete restriction and arrangement can be carried out according to actual industrial demand, as long as the described cable that can realize described wiring board 2 is rationally arranged arrange.
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 (22)
1. a breaker of plastic casing, comprises pedestal (1), is provided with release, instrument transformer in described pedestal (1) inside; Wiring board (2); It is characterized in that, the installed surface of described pedestal (1) is provided with isolation structure element separation inner with described pedestal (1) for described wiring board (2) opened, described wiring board (2) is arranged in described isolation structure; Described installed surface is provided with wiring hole, and the three phase supply wire of described wiring board (2) is connected with power supply component through described wiring hole; It is inner that the wire that described wiring board (2) is electrically connected with described release and the holding wire be electrically connected with described instrument transformer enter described pedestal (1) through described wiring hole, described isolation structure is for being opened in the open-work (3) on described pedestal (1) installed surface, and described wiring board (2) is arranged in described open-work (3).
2. breaker of plastic casing according to claim 1, it is characterized in that, described installed surface is also provided with pressuring line groove, the wire that described three phase supply wire, described wiring board (2) are electrically connected with described release and the holding wire be electrically connected with described instrument transformer is embedding is pressed in described pressuring line groove.
3. breaker of plastic casing according to claim 2, it is characterized in that, described wiring hole comprises three phase supply hole (4), release fairlead (5) and instrument transformer fairlead (6), described three phase supply hole (40) is arranged on the position of the close described power supply component of described installed surface, described release fairlead (5) is arranged on the position of the close described release of described installed surface, described instrument transformer fairlead (6) is arranged on the position of the close described instrument transformer of described installed surface, it is inner that described three phase supply wire enters described pedestal (1) through described three phase supply hole (4), it is inner that the wire that described wiring board (2) is electrically connected with described release enters described pedestal (1) through described release fairlead (5), it is inner that the wire that described wiring board (2) is electrically connected with described instrument transformer enters described pedestal (1) through instrument transformer fairlead (6).
4. breaker of plastic casing according to claim 3, is characterized in that, described pressuring line groove comprises: three the first pressuring line grooves (7), arranged in parallel and be communicated with described three phase supply hole (4) respectively; Second pressuring line groove (8), is communicated with described release fairlead (5); 3rd pressuring line groove (9), is parallel to described second pressuring line groove (8) and arranges and be communicated with described instrument transformer fairlead (6).
5. breaker of plastic casing according to claim 4, it is characterized in that, described breaker of plastic casing also comprises sheath (10), described wiring board (2) is arranged in described sheath (10), described sheath (10) is nested to be arranged in described open-work (3) and the opening of described sheath (10) outwardly.
6. breaker of plastic casing according to claim 5, is characterized in that, described three the first pressuring line grooves (7) are all communicated with described second pressuring line groove (8).
7. breaker of plastic casing according to claim 1, is characterized in that, described power supply component is for being arranged on the screw of fastening thermal element in described three phase supply hole (4).
8. breaker of plastic casing according to claim 7, is characterized in that, the nut of described screw is fixedly installed conductive plate, and described three phase supply wire is connected on described conductive plate.
9. breaker of plastic casing according to claim 8, is characterized in that, described breaker of plastic casing also comprises bottom, and described bottom is fixedly mounted on described installed surface.
10. breaker of plastic casing according to claim 9, is characterized in that, described bottom is provided with louvre.
11. breaker of plastic casing according to claim 1, is characterized in that, described breaker of plastic casing also comprises top cover, and described top cover is arranged on described pedestal (1).
12. 1 kinds of breaker of plastic casing, comprise pedestal (1), are provided with release, instrument transformer in described pedestal (1) inside; Wiring board (2); It is characterized in that, the installed surface of described pedestal (1) is provided with isolation structure element separation inner with described pedestal (1) for described wiring board (2) opened, described wiring board (2) is arranged in described isolation structure; Described installed surface is provided with wiring hole, and the three phase supply wire of described wiring board (2) is connected with power supply component through described wiring hole; It is inner that the wire that described wiring board (2) is electrically connected with described release and the holding wire be electrically connected with described instrument transformer enter described pedestal (1) through described wiring hole, described isolation structure is for being opened in the groove (11) on described pedestal (1) installed surface, and described wiring board (2) is arranged in described groove (11).
13. breaker of plastic casing according to claim 12, it is characterized in that, described installed surface is also provided with pressuring line groove, the wire that described three phase supply wire, described wiring board (2) are electrically connected with described release and the holding wire be electrically connected with described instrument transformer is embedding is pressed in described pressuring line groove.
14. breaker of plastic casing according to claim 13, it is characterized in that, described wiring hole comprises three phase supply hole (4), release fairlead (5) and instrument transformer fairlead (6), described three phase supply hole (40) is arranged on the position of the close described power supply component of described installed surface, described release fairlead (5) is arranged on the position of the close described release of described installed surface, described instrument transformer fairlead (6) is arranged on the position of the close described instrument transformer of described installed surface, it is inner that described three phase supply wire enters described pedestal (1) through described three phase supply hole (4), it is inner that the wire that described wiring board (2) is electrically connected with described release enters described pedestal (1) through described release fairlead (5), it is inner that the wire that described wiring board (2) is electrically connected with described instrument transformer enters described pedestal (1) through instrument transformer fairlead (6).
15. breaker of plastic casing according to claim 14, is characterized in that, described pressuring line groove comprises: three the first pressuring line grooves (7), arranged in parallel and be communicated with described three phase supply hole (4) respectively; Second pressuring line groove (8), is communicated with described release fairlead (5); 3rd pressuring line groove (9), is parallel to described second pressuring line groove (8) and arranges and be communicated with described instrument transformer fairlead (6).
16. breaker of plastic casing according to claim 15, it is characterized in that, described breaker of plastic casing also comprises protective case (12), described wiring board (2) is arranged in protective case (12), described protective case (12) to be arranged in described groove (11) and the opening of described protective case (12) outwardly.
17. breaker of plastic casing according to claim 16, is characterized in that, described second pressuring line groove (8) and described 3rd pressuring line groove (9) are arranged on described three the first pressuring line groove (7) spacer regions each other.
18. breaker of plastic casing according to claim 12, is characterized in that, described power supply component is for being arranged on the screw of fastening thermal element in described three phase supply hole (4).
19. breaker of plastic casing according to claim 18, is characterized in that, the nut of described screw is fixedly installed conductive plate, and described three phase supply wire is connected on described conductive plate.
20. breaker of plastic casing according to claim 19, it is characterized in that, described breaker of plastic casing also comprises bottom, described bottom is fixedly mounted on described installed surface.
21. breaker of plastic casing according to claim 20, is characterized in that, described bottom is provided with louvre.
22. breaker of plastic casing according to claim 12, is characterized in that, described breaker of plastic casing also comprises top cover, and described top cover is arranged on described pedestal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400781.4A CN102915884B (en) | 2012-10-19 | 2012-10-19 | Molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400781.4A CN102915884B (en) | 2012-10-19 | 2012-10-19 | Molded case circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102915884A CN102915884A (en) | 2013-02-06 |
| CN102915884B true CN102915884B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210400781.4A Active CN102915884B (en) | 2012-10-19 | 2012-10-19 | Molded case circuit breaker |
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| CN (1) | CN102915884B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157525A (en) * | 2014-08-12 | 2014-11-19 | 浙江民普电气有限公司 | Molded case earth leakage circuit breaker |
| CN106449289B (en) * | 2016-09-28 | 2019-03-08 | 德力西电气有限公司 | A kind of breaker |
| CN109119297B (en) * | 2018-10-15 | 2025-01-07 | 浙江天正电气股份有限公司 | A leakage protection structure of molded case circuit breaker |
| CN112885654A (en) * | 2019-11-29 | 2021-06-01 | 南京正泰龙科技有限公司 | Design for improving assembly threading efficiency of miniature circuit breaker |
| CN212783287U (en) * | 2020-06-05 | 2021-03-23 | 浙江正泰电器股份有限公司 | Circuit breaker |
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| CN202210499U (en) * | 2011-09-20 | 2012-05-02 | 胡俊兵 | Low voltage plastic housing intelligent breaker |
| CN202495401U (en) * | 2012-02-23 | 2012-10-17 | 上海电科电器科技有限公司 | Leakage circuit breaker |
| CN202796788U (en) * | 2012-10-19 | 2013-03-13 | 德力西电气有限公司 | Moulded case circuit breaker |
| CN202796787U (en) * | 2012-10-19 | 2013-03-13 | 德力西电气有限公司 | Moulded case circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6933814B2 (en) * | 2003-05-13 | 2005-08-23 | General Electric Company | Phase-to-phase isolation of cassette type circuit breakers |
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2012
- 2012-10-19 CN CN201210400781.4A patent/CN102915884B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210499U (en) * | 2011-09-20 | 2012-05-02 | 胡俊兵 | Low voltage plastic housing intelligent breaker |
| CN202495401U (en) * | 2012-02-23 | 2012-10-17 | 上海电科电器科技有限公司 | Leakage circuit breaker |
| CN202796788U (en) * | 2012-10-19 | 2013-03-13 | 德力西电气有限公司 | Moulded case circuit breaker |
| CN202796787U (en) * | 2012-10-19 | 2013-03-13 | 德力西电气有限公司 | Moulded case circuit breaker |
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| Publication number | Publication date |
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| CN102915884A (en) | 2013-02-06 |
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