CN103021740B - Circuit breaker with leakage protection function - Google Patents
Circuit breaker with leakage protection function Download PDFInfo
- Publication number
- CN103021740B CN103021740B CN201110286595.8A CN201110286595A CN103021740B CN 103021740 B CN103021740 B CN 103021740B CN 201110286595 A CN201110286595 A CN 201110286595A CN 103021740 B CN103021740 B CN 103021740B
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- fork
- shaped busbar
- cage
- main part
- 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 invention discloses a circuit breaker with a leakage protection function. The circuit breaker comprises a shell, a circuit breaker module and a leakage protection module accommodated in the shell, and two or more polar connectors connecting the circuit breaker module with the leakage protection module. The shell comprises a main body part and an isolation hood which can be installed on the main body part. The isolation hood comprises a plurality of isolation walls, so that when the isolation hood is installed on the main body part, the isolation walls are arranged between adjacent two polar connectors to electrically isolate the adjacent polar connectors. Through the invention, the polar connectors in the integrally designed circuit breaker with the leakage protection function can be isolated even if the inner space of the shell is limited. The distance between the polar connectors is very small, and the polar connectors can be electrically isolated effectively through the isolation walls of the isolation hood.
Description
Technical field
The present invention relates to a kind of circuit breaker with creepage protection function, and particularly relate to the circuit breaker of a kind of breaker module and leakage protection module unitary design.
Background technology
Circuit breaker and earth leakage protective device be prevent that the person from getting an electric shock, the effective safeguard procedures of one of electrical fire and electric equipment infringement, therefore, be widely used in the electric wiring of family, industry and commercial location.
Traditional circuit breaker and earth leakage protective device mostly are separate structure, and the two is arranged side by side and is interconnected in use.As shown in Figure 1, Fig. 1 shows the perspective view of circuit breaker and the earth leakage protective device be combined.Wherein circuit breaker 1 and earth leakage protective device 2 are arranged side by side and are installed in power distribution cabinet.Therebetween connect and usually adopt rigid line 3 to utilize the mode of manual fastened by screw to realize.
But there is some problem in circuit breaker and the earth leakage protective device of this structure, such as, because the connection of the two adopts rigid line 3 utilize the mode of manual fastened by screw to realize, if Tightening moment is inadequate, then exist junction overheated and and then bring the risk of accident; In addition, because the binding post of circuit breaker 1 and earth leakage protective device 2 and the rigid line 3 that is connected all are exposed to the outside of apparatus casing, there is the risk of getting an electric shock therebetween.
In order to overcome the problems referred to above; in the prior art; such as in No. 200920171422.X, Chinese utility model patent; propose a kind of electrical shock protection structure, this electrical shock protection structure comprises an over cap, and this over cap is provided with projection; and on the housing of circuit breaker, be provided with chute; by the projection of over cap is snapped onto in the chute of circuit breaker, over cap is connected in residual current circuit breaker, blocks the terminal of circuit breaker thus.But; because this over cap is and residual current circuit breaker independently element; and need take off when residual current circuit breaker wiring and snap into again on the housing of residual current circuit breaker after wiring completes; thus; there is this over cap easily come off or forget the problem of this over cap of installing, the risk that cannot reliably avoid personnel to get an electric shock due to the fault of maintenance or installation personnel.In addition, this over cap only address only the problem of the external cabling terminal blocking residual current circuit breaker, and for the electrical isolation between all parts of circuit breaker internal without any effect.
In addition, connect to overcome rigid line the problem brought, it is also proposed the circuit breaker and earth leakage protective device that adopt Integral design in the prior art, that is, breaker module and leakage protection module are contained in an independent housing.But; in the circuit breaker of the band creepage protection function of this Integral design; due to the narrow space of enclosure interior; electric space between each pole wiring making to connect between breaker module and leakage protection module is very little; about 1 millimeter, cannot realize the reliable electric insulation between multiple pole.
Moreover, in power distribution cabinet, adopt fork-shaped busbar connected mode more and more at present, simplify installation and the wiring of electric equipment thus.Because the circuit breaker shown in Fig. 1 and earth leakage protective device combining structure do not design for fork-shaped busbar, therefore, when being installed in the power distribution cabinet adopting fork-shaped busbar, some teeth of fork-shaped busbar must be removed.But user have ignored this step when mounted sometimes, then the accidents such as short circuit can be brought to occur.
Summary of the invention
Therefore; the object of the present invention is to provide a kind of circuit breaker of band creepage protection function of unitary design; in the circuit breaker of this band creepage protection function, breaker module and leakage protection module are arranged in the housing integratedly, and above-mentioned the problems of the prior art are overcome.
According to the present invention, provide a kind of circuit breaker with creepage protection function, comprise: a kind of circuit breaker with creepage protection function, comprise housing, be contained in the breaker module in this housing and leakage protection module, connect two or more poles connector of described breaker module and leakage protection module, described housing comprises main part and can be installed to the cage in described main part, described cage comprises multiple dividing wall, with when described cage is installed in described main part, described dividing wall is arranged between adjacent two in the connector of described multiple poles, by electrically isolated from one for adjacent pole connector.
Utilize cage of the present invention; each pole connector in the circuit breaker of the band creepage protection function of unitary design can be separated; even if at the limited space of case inside; and the distance between each pole connector is very narrow; by the dividing wall of cage, the electrical isolation between each pole connector effectively can be realized.
Described circuit breaker also comprises the splicing ear be connected with outside line by described circuit breaker, and when described cage is installed in described main part, described dividing wall is arranged between described splicing ear and the pole connector be adjacent, to incite somebody to action the two electric isolution.
Utilize cage of the present invention, not only can ensure the preferred electric isolution between each pole connector, and the electric isolution between each pole connector and circuit breaker splicing ear can be ensured.
Preferably, described cage also comprises fork-shaped busbar chamber, and described fork-shaped busbar chamber is closed inside described cage, to hold the tooth of fork-shaped busbar, and by the tooth of described fork-shaped busbar and described pole connector and described splicing ear electric isolution.Further, described fork-shaped busbar chamber is provided with insert port on the outer surface of described cage, inserts in described fork-shaped busbar chamber to allow the tooth of described fork-shaped busbar.
By comprising fork-shaped busbar chamber at cage, circuit breaker according to the present invention can be made to be applied in the connection of fork-shaped busbar, and as needing in the prior art, fork-shaped busbar need not be transformed, thus, improve the scope of application according to circuit breaker of the present invention.
As the preferred arrangement of one, described splicing ear comprises binding clip and is arranged on the trip bolt on described binding clip, and described dividing wall is arranged between described binding clip and described pole connector.And described fork-shaped busbar chamber is around described trip bolt, and by the tooth electric isolution of described trip bolt and described fork-shaped busbar.
Utilize this layout, make fork-shaped busbar chamber be arranged on described dividing wall, the space in housing can be efficiently utilized.
Preferably, described pole connector is connected with described leakage protection module with described breaker module by electric resistance welding.
Compare with the connected mode of holding screw with the rigid line of prior art, by electric resistance welding, pole connector is connected with modules, the reliability be electrically connected can be ensured, and can eliminate in prior art and cause overheated risk because the Tightening moment of holding screw is not enough.In addition, utilize electric resistance welding, compare with the connected mode of holding screw with the rigid line of prior art, product power consumption can be reduced, reach energy-conservation object.
Preferably, described cage by clamping, rivet, be threaded, in bonding, welding the combination of any one or they be installed in described main part.
In the main part of described housing, contiguous described insert port is also provided with another insert port, insert to allow the tooth adjacent with the tooth inserted in described fork-shaped busbar chamber in described fork-shaped busbar, so that one of them pole of described circuit breaker is electrically connected with described fork-shaped busbar.
By this layout, circuit breaker of the present invention can be combined with fork-shaped busbar and be suitable for, extend the scope of application of circuit breaker of the present invention thus.
Preferably, the body part of described housing is provided with terminal hole, for being connected with outside line by circuit breaker.
Thus, except fork-shaped busbar, circuit breaker of the present invention can also be suitable for by traditional connected mode, is that the scope of application of circuit breaker of the present invention further expands.
Accompanying drawing explanation
The industry of above-mentioned and other side of the present invention, characteristic sum and technical significance by from more clearly being understood in the detailed description of the preferred embodiment for the present invention with reference to the accompanying drawings, in figure:
Fig. 1 illustrates the split type circuit breaker of prior art and the perspective view of earth leakage protective device;
Fig. 2 is the partial exploded perspective view of the circuit breaker of the band creepage protection function illustrated according to a preferred embodiment of the invention;
Fig. 3 illustrates the perspective view for the cage in the circuit breaker of band creepage protection function as shown in Figure 2, and the direction of this perspective view is different from the direction of Fig. 2;
Fig. 4 is the schematic diagram that fork-shaped busbar is shown;
Fig. 5 is the perspective view illustrating that fork-shaped busbar is connected with the circuit breaker shown in Fig. 2, and wherein, for the sake of clarity, the top of cage is removed; And
Fig. 6 is the front view of Fig. 5, and illustrate only the toothed portion of fork-shaped busbar.
Embodiment
Below, with reference to Fig. 2 to Fig. 6, describe in detail according to the preferred embodiment of the present invention with the circuit breaker of creepage protection function.It is to be noted at this, accompanying drawing and detailed description below only disclose object of the present invention and give for complete and clear and realize a concrete example of the present invention, and never form any restriction to the present invention.In the following description, for example purposes, only give the circuit breaker of the band creepage protection function comprising N pole and P pole, but the present invention still can be applied in the polyphase circuit with multiple pole, can realize effect of the present invention equally.
First be the partial exploded perspective view of the circuit breaker of the band creepage protection function illustrated according to a preferred embodiment of the invention with reference to Fig. 2, Fig. 2.Circuit breaker (to be called residual current circuit breaker) 100 with creepage protection function mainly comprises housing 10 and holds breaker module (not shown) in the housing 10 and leakage protection module (not shown).Because breaker module and leakage protection module are not improvements of the present invention; those skilled in the art can adopt breaker module and the leakage protection module of any type based on this area knowledge of self, therefore there is omitted herein the detailed description for these two modules.In the housing 10, P pole solder connector 20 and N pole solder connector 30 is provided with, to be connected between breaker module with leakage protection module by modes such as electric resistance weldings.In this P pole solder connector 20 and solder connector 30 position in the middle, N pole, be furnished with the binding post for N pole, the trip bolt 42 that this binding post comprises binding clip 41 and is arranged on the upside of binding clip 41, to be connected residual current circuit breaker 100 with the center line (N) in outside line.
Housing 10 comprises the main part 11 holding above-mentioned breaker module and leakage protection module and the cage 12 be installed in the main part 11 of housing 10.As shown in Figures 2 and 3, cage 12 is such as formed by integrated through injection molding by resin material, and comprises the chamber surrounded by multiple wall, and this will be discussed in more detail below.Cage 12 is installed in main part 11 by engaging with the hook portion 13 that main part 11 is arranged, and can be fixed in main part 11 further by rivet, screw or other fastener, to form dismountable installation.As shown in Figure 2, main part 11 is provided with two hook portions 13, and these two hook portions 13 are arranged on different At The Heights, in addition, the left side of main part 11 are also provided with boss 14, to receive the screw of fastening cage 12.But the present invention is not limited thereto, multiple hook portion 13 can be set, or a hook portion is only set, and even can not hook portion be set, and by screw or rivet, cage 12 is fastened in main part 11 completely.The position of hook portion 13 is also unrestricted, as long as can be suitably fixing by cage 12.In addition, although in the embodiment shown in figure 2, provide the boss 14 that is received screw, but, multiple boss 14 also can be set to receive multiple screw or rivet, or any boss is not set, and cage 12 is installed in main part 11 by means of only snap engagement.In addition, in the embodiment shown in figure 2, cage 12 is releasably attached in main part 11, but, even also by such as mode that is bonding or welding, cage 12 can be permanently affixed in main part 11.
As shown in Figure 3, the inner side of cage 12, be formed with two dividing walls 121 and 121 spaced apart from each other, these two dividing walls 121 with 121 together with the lateral wall 122 of cage 12, chamber 123A, 123B and 123C of being divided into three to be isolated from each other the lower space in cage 12, as shown in Figure 6, these three chambers are respectively the intermediate cavity 123B for holding N pole binding clip 41, in side for holding the P pole chamber 123A of P pole the solder connector 20 and N pole chamber 123B for holding N pole solder connector 30.Thus, after in the main part 11 cage 12 being installed to housing 10, P pole solder connector 20, N pole solder connector 30 and the N pole binding clip 41 for being connected the neutral line, each other by dividing wall 121 electric isolution mutually, prevent the short circuit between them reliably.
In addition, in cage 12, on three chambers 123A, 123B and 123C, be provided with the accommodating chamber 124 (hereinafter also referred to fork-shaped busbar chamber) of the tooth 51 for holding fork-shaped busbar 50.This fork-shaped busbar chamber 124 is the closed chambers surrounded by multiple wall, only has the insert port 125 (see Fig. 2) of tooth 51 insertion for fork-shaped busbar 50 at the front surface of cage 12.Composition graphs 2, Fig. 3 and Fig. 5 can find out, the shape of the inner space of fork-shaped busbar chamber 124 and the tooth 51 (see Fig. 4) of fork-shaped busbar is similar, that is, on the cross section in the plane of tooth comprising fork-shaped busbar, this fork-shaped busbar chamber 124 is roughly U-shaped.See Fig. 3 and 5, wherein Fig. 5 illustrates the schematic diagram part of cage 12 on this line A-A removed along the line A-A in Fig. 3.The madial wall 126 closing fork-shaped busbar chamber 125 is also U-shaped, and in the middle of this U-shaped madial wall, form the passage holding above-mentioned trip bolt 42, and thus, trip bolt 42 can be screwed on binding clip 41 through this fork-shaped busbar chamber 125.Thus, even if after in the fork-shaped busbar chamber 125 tooth 51 of fork-shaped busbar 50 being inserted into cage 12, also can ensure that the trip bolt 42 of the extreme son of fork-shaped busbar 50 and N is electrically isolated from one.Thus, by residual current circuit breaker of the present invention 100 and fork-shaped busbar 50 with the use of time, user need not remove the tooth 51 of fork-shaped busbar 50.
After in the main part 11 that cage 12 is installed to housing 10, in main part 11, align and the position of spaced apart preset distance with this insert port 125, be formed with another insert port 111, this insert port 111 is the adjacent teeth 51 for inserting fork-shaped busbar 50, to be electrically connected with the P pole of residual current circuit breaker 100 by fork-shaped busbar 50.
As shown in Figures 2 and 3, on the top wall of cage 12, be formed with through hole 127, this through hole 127 for close to described trip bolt 42, can wiring work be carried out.
In addition, as illustrated in Figures 5 and 6, under fork-shaped busbar 50, the housing of residual current circuit breaker 100 is also provided with two holes 60, these two holes 60 are for being connected residual current circuit breaker 100 with outside line.
Describe the preferred embodiment of the present invention in detail above, thus, in this preferred implementation; by by breaker module and leakage protection module unitary design; compared with split-type design in prior art, can number of spare parts be reduced, thus reduce the cost of product.
In addition, according to the present invention, by by breaker module and leakage protection module unitary design, and the connection between breaker module and leakage protection module adopts electric resistance welding.Connect with the rigid line adopted in prior art and fastened by screw mode compared with, the reliability of electrical connection can be improved.
In addition, according to the present invention, by providing cage, the electrical isolation between P pole solder connector and N pole solder connector reliably can be realized.
In addition, according to the present invention, by arranging the space of the tooth holding fork-shaped busbar in cage, can make residual current circuit breaker of the present invention and fork-shaped busbar with the use of and need not fork-shaped busbar be transformed, and reliably can form electrical isolation between the tooth and each electrode of fork-shaped busbar.
Although describe in detail the preferred embodiment of the present invention above with reference to accompanying drawing, it should be understood that the present invention is not limited thereto.Such as; although upper mask body defines the position of P pole solder connector, N pole solder connector, P pole chamber, N pole chamber, fork-shaped busbar chamber; but these positions are only for example purposes; and it is nonrestrictive; can suitably change according to the specific design of residual current circuit breaker or exchange the mutual alignment of these features, and these changes all should drop in protection scope of the present invention.In addition, superincumbent description and diagram in, merely provide a N pole solder connector and a P pole solder connector, but, this is not restrictive, also can have multiple P pole or N pole solder connector, and in cage, correspondingly arrange their chamber of multiple accommodation.All these improve or modification all should be thought to fall within the scope of protection of the present invention, and protection scope of the present invention is only by appending claims and equivalents thereof.
Claims (10)
1. the circuit breaker with creepage protection function (100), comprise housing (10), be contained in the breaker module in this housing and leakage protection module, connect two or more poles connector (20 of described breaker module and leakage protection module, 30), it is characterized in that, described housing comprises main part (11) and can be installed to the cage (12) in described main part, described cage comprises multiple dividing wall (121), during to be installed at described cage (12) in described main part (11), described multiple poles connector (20, 30) dividing wall is provided with between adjacent two in, thus make adjacent pole connector electrically isolated from one.
2. circuit breaker as claimed in claim 1, it is characterized in that, also comprise the splicing ear (41 and 42) be connected with outside line by described circuit breaker, when described cage is installed in described main part, described splicing ear (41) and the pole connector (20 be adjacent, 30) dividing wall is provided with between, to incite somebody to action the two electric isolution.
3. circuit breaker as claimed in claim 2, it is characterized in that, described cage (12) also comprises fork-shaped busbar chamber (124), described fork-shaped busbar chamber is closed inside described cage, to hold the tooth (51) of fork-shaped busbar (50), and by the tooth (51) of described fork-shaped busbar and described pole connector (20,30) and described splicing ear (41) electric isolution.
4. circuit breaker as claimed in claim 3, it is characterized in that, described fork-shaped busbar chamber is provided with insert port (125) on the outer surface of described cage, inserts in described fork-shaped busbar chamber (124) to allow the tooth (51) of described fork-shaped busbar.
5. circuit breaker as claimed in claim 2, it is characterized in that, described splicing ear comprises binding clip (41) and is arranged on the trip bolt (42) on described binding clip, dividing wall is provided with between described binding clip (41) and described pole connector (20,30).
6. circuit breaker as claimed in claim 3, it is characterized in that, described splicing ear comprises binding clip (41) and is arranged on the trip bolt (42) on described binding clip, described fork-shaped busbar chamber (124) around described trip bolt (42), and by the tooth electric isolution of described trip bolt and described fork-shaped busbar.
7. the circuit breaker according to any one of claim 1 to 6, is characterized in that, described pole connector (20,30) is connected with described leakage protection module with described breaker module by electric resistance welding.
8. the circuit breaker according to any one of claim 1 to 6, it is characterized in that, described cage (12) by clamping, rivet, be threaded, in bonding, welding the combination of any one or they be installed in described main part (11).
9. circuit breaker as claimed in claim 4, it is characterized in that, the upper contiguous described insert port (125) of main part (11) in described housing (10) is also provided with another insert port (111), insert to allow the tooth adjacent with the tooth inserted in described fork-shaped busbar chamber in described fork-shaped busbar (50), so that one of them pole of described circuit breaker is electrically connected with described fork-shaped busbar.
10. the circuit breaker according to any one of claim 1 to 6, is characterized in that, the body part of described housing is provided with terminal hole (60), for being connected with outside line by circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110286595.8A CN103021740B (en) | 2011-09-23 | 2011-09-23 | Circuit breaker with leakage protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110286595.8A CN103021740B (en) | 2011-09-23 | 2011-09-23 | Circuit breaker with leakage protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103021740A CN103021740A (en) | 2013-04-03 |
| CN103021740B true CN103021740B (en) | 2015-03-04 |
Family
ID=47970228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110286595.8A Active CN103021740B (en) | 2011-09-23 | 2011-09-23 | Circuit breaker with leakage protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103021740B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325586B (en) * | 2013-07-01 | 2016-08-10 | 华为技术有限公司 | A kind of breaker assembly and single P chopper |
| CN111489923A (en) * | 2019-01-25 | 2020-08-04 | 施耐德电器工业公司 | Leakage protection circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201490118U (en) * | 2009-08-18 | 2010-05-26 | 北京达三江电器设备厂 | Electric-shock protection structure for residual current circuit breakers and moulded case circuit breakers |
| CN201508810U (en) * | 2009-06-23 | 2010-06-16 | 德力西电气（宁波）有限公司 | Leakage tripping device with shield |
| CN202307726U (en) * | 2011-09-23 | 2012-07-04 | 施耐德电器工业公司 | Circuit breaker with electric leakage protection function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6930577B2 (en) * | 2003-09-15 | 2005-08-16 | General Electric Company | Circuit breaker lug cover and gasket |
-
2011
- 2011-09-23 CN CN201110286595.8A patent/CN103021740B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201508810U (en) * | 2009-06-23 | 2010-06-16 | 德力西电气（宁波）有限公司 | Leakage tripping device with shield |
| CN201490118U (en) * | 2009-08-18 | 2010-05-26 | 北京达三江电器设备厂 | Electric-shock protection structure for residual current circuit breakers and moulded case circuit breakers |
| CN202307726U (en) * | 2011-09-23 | 2012-07-04 | 施耐德电器工业公司 | Circuit breaker with electric leakage protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103021740A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10446988B2 (en) | Fuse assembly | |
| US8669840B2 (en) | Fuse assembly | |
| JP5919081B2 (en) | Electrical junction box | |
| CN105027364A (en) | Manual service disconnects for battery systems | |
| US9425018B2 (en) | Fuse unit | |
| KR101293956B1 (en) | High voltage joint box for vehicle | |
| JP5695975B2 (en) | Fusible link mounting structure and electrical junction box | |
| JP6158500B2 (en) | Bus bar module structure | |
| US10978768B2 (en) | Battery system | |
| CN109478616B (en) | Battery module | |
| CN108352689A (en) | Circulating type busbar for vehicle power distribution unit | |
| CN104380551B (en) | Electric insulation shell, electric insulation arrangement and switchgear panel | |
| US20120064770A1 (en) | Overvoltage protection plug | |
| CN108352690A (en) | The relay block that height for vehicle power distribution unit reduces | |
| CN103021740B (en) | Circuit breaker with leakage protection function | |
| WO2011135861A1 (en) | Assembly structure of electrical junction box | |
| CN202307726U (en) | Circuit breaker with electric leakage protection function | |
| KR20090013203U (en) | Direct connection type zero phase current transformer to circuit breaker | |
| KR20110107169A (en) | Multi fuse | |
| JP5543188B2 (en) | Electrical junction box | |
| JP2018014297A (en) | Wiring module | |
| JP4177247B2 (en) | Busbar fuse connection structure and electrical connection box including the same |
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 |