CN203644718U - Plastic-shell circuit breaker having residual-current protection - Google Patents
Plastic-shell circuit breaker having residual-current protection Download PDFInfo
- Publication number
- CN203644718U CN203644718U CN201320865385.9U CN201320865385U CN203644718U CN 203644718 U CN203644718 U CN 203644718U CN 201320865385 U CN201320865385 U CN 201320865385U CN 203644718 U CN203644718 U CN 203644718U
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- Prior art keywords
- breaker
- base
- circuit board
- circuit breaker
- cable hole
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 abstract description 11
- 238000005070 sampling Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 235000014987 copper Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a plastic-shell circuit breaker having residual-current protection and belongs to the technical field of a low-voltage electrical appliance. The plastic-shell circuit breaker comprises a circuit breaker body and an electric-leakage module fixedly connected to the circuit breaker body; the electric-leakage module comprises a base, a zero-sequence current transformer disposed on the base, a group of conductive copper bars passing through the zero-sequence current transformer, a cover casing disposed on the zero-sequence current transformer and a circuit board assembly installed on the cover casing; the base is provided with a first wiring hole, a second wiring hole and at least three first installation holes; power supply sampling lines of the circuit board assembly are arranged at the bottom of the base through the first wiring hole and the second wiring hole, are respectively arranged behind the first installation holes and then are electrically connected with the conductive copper bars through connecting screws. The plastic-shell circuit breaker has the advantages of simple structure, convenient installation, neat and reasonable cable arrangement, reliable connections, stable performance and using safety; and modular installation of the plastic-shell circuit breaker can be realized.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, is specifically related to a kind of breaker of plastic casing with residual current protecting.
Background technology
Along with the continuation development of national economy and the increase day by day of power consumption, power consumption equipment becomes more diverse, and electrical safety problem more and more comes into one's own.Breaker of plastic casing with residual current protecting can be cut off the electricity supply rapidly on the one hand in the time there is electric leakage accident, directly protects the person and the device security of electric terminal; The Leakage Current also reason such as aging circuit or insulation damages being caused is on the other hand reacted, and to a certain extent the accidents such as electrical fire is played to supervisory function bit, has therefore obtained increasingly extensive application.At present; the common breaker of plastic casing with residual current protecting on market; electric component on it is for example: instrument transformer, disengaging deivce of earth leakage and wiring board etc. all seal and be arranged in housing; owing to being subject to the restriction of the breaker of plastic casing inner space size with residual current protecting; the lead-in wire of above-mentioned electric component is all arranged in the die cavity of housing; exist inner lead to arrange the problems such as unreasonable, chaotic; cause the phenomenons such as virtual connection, broken string, interference, thereby affect the safe and reliable operation of circuit breaker.
In view of above-mentioned prior art, be necessary that installation and the lead-in wire arrangement to each electric component in the existing breaker of plastic casing with residual current protecting improved, technical scheme described below produces under such background.
Summary of the invention
The purpose of this utility model is to provide a kind of modularization that can either realize that the connection and reasonable arrangement that can make again each electric component lead-in wire, the breaker of plastic casing with residual current protecting that uses safety are installed.
The purpose of this utility model reaches like this, a kind of breaker of plastic casing with residual current protecting, it is characterized in that: comprise breaker body and be fixedly connected on the electric leakage module on described breaker body, described electric leakage module comprises base, be located at the zero sequence current mutual inductor on base, one group of conducting copper through zero sequence current mutual inductor, be placed in the case on zero sequence current mutual inductor and be arranged on the circuit board module on case, on described base, there is the first cable hole, the second cable hole and at least three the first installing holes, the power acquisition line-transect of described circuit board module is arranged in the bottom of base by the first cable hole and the second cable hole, and use attachment screw to realize and being electrically connected with one group of conducting copper after being separately positioned on the first installing hole.
In a specific embodiment of the present utility model, described breaker body comprises housing, be located at disengaging deivce of earth leakage in housing and lid for covering described disengaging deivce of earth leakage and being fixedly connected with described housing, the described side near disengaging deivce of earth leakage under use state of covering has trough and walks line three-way hole and opening, and the connecting line of described disengaging deivce of earth leakage is realized and being electrically connected with described circuit board module after passing successively trough, walking line three-way hole and opening.
In another specific embodiment of the present utility model, on described case, there is the 3rd cable hole and the 4th cable hole, the 3rd described cable hole, the location that the 4th cable hole is used for the power acquisition line-transect of described circuit board module.
In another specific embodiment of the present utility model, on one group of described conducting copper, there is the second installing hole, the second described installing hole is for the connection of the power acquisition line-transect of circuit board module.
In another specific embodiment of the present utility model, described circuit board module comprises the first wiring board and multiple the second wiring board, the first described wiring board and multiple the second wiring board are layered laminate and are arranged on described case, the first described wiring board is provided with test knob, and described case is provided with the bayonet socket for described test knob is installed.
Also has in a specific embodiment venthole that the gas producing while being also provided with for the disjunction of confession circuit breaker on described base discharges of the present utility model.
The utility model is owing to adopting after said structure, the beneficial effect having: simple in structure, easy for installation, can realize the modularization of breaker of plastic casing installs, the reasonable Arrangement of the holding wire that the power acquisition line-transect of its circuit board module, the wire that circuit board module is electrically connected with the disengaging deivce of earth leakage of breaker body inside and circuit board module are electrically connected with instrument transformer, make arranging of above-mentioned cable neat rationally, connect reliable, stable performance and use safety.
Accompanying drawing explanation
Fig. 1 is an embodiment planar structure schematic diagram of the present utility model.
Fig. 2 is the explosive view of breaker body described in the utility model.
Fig. 3 is breaker body described in the utility model and electric leakage module scheme of installation.
Fig. 4 is the perspective view of lid described in the utility model.
Fig. 5 is the perspective view of breaker body described in the utility model and electric leakage module.
Fig. 6 is an embodiment perspective view of the present utility model.
Fig. 7 is the STRUCTURE DECOMPOSITION figure of electric leakage module described in the utility model.
Fig. 8 is the structural representation of base described in the utility model.
Fig. 9 is the scheme of installation of circuit board module described in the utility model and case.
Figure 10 is the structural representation of electric leakage module described in the utility model.
Figure 11 is the structural representation of case described in the utility model.
Figure 12 is the scheme of installation of zero sequence current mutual inductor described in the utility model and conducting copper.
Figure 13 is the structural representation of cover plate described in the utility model.
In figure: 1. breaker body, 11. housings, 12. disengaging deivce of earth leakage, 121. connecting lines, 13. lids, 131. troughs, 132. are walked line three-way hole, 133. openings, 2. electric leakage module, 21. bases, 211. first cable holes, 212. second cable holes, 213. venthole, 214. first installing holes, 22. zero sequence current mutual inductors, 23. conducting coppers, 231. second installing holes, 24. circuit board modules, 241. first wiring boards, 2411. test knob, 242. second wiring boards, 2421. first power acquisition line-transects, 2422. second source sample line, 2423. the 3rd power acquisition line-transects, 25. cases, 251. bayonet socket, 252. the 3rd cable holes, 253. the 4th cable holes, 26. cover plates, 261. groove.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, anyly changes in the form rather than substance and all should be considered as protection range of the present utility model according to the utility model design.
Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6; the utility model relates to a kind of split type band residual current protecting breaker of plastic casing; comprise breaker body 1 and be fixedly connected on the electric leakage module 2 on breaker body 1, between described electric leakage module 2 and described breaker body 1, achieving a fixed connection by screw.Described breaker body 1 comprises housing 11, disengaging deivce of earth leakage 12 and lid 13, described disengaging deivce of earth leakage 12 is placed in the inside die cavity of housing 11, described lid 13 for cover described disengaging deivce of earth leakage 12 and with described housing 11 structures for being fixedly connected with, described disengaging deivce of earth leakage 12 has connecting line 121, described connecting line 121 is realized and being electrically connected with described electric leakage module 2, in the time that electric leakage module 2 detects electric leakage signal, drive the release mechanism of breaker body 1 to disconnect major loop by disengaging deivce of earth leakage 12.The known technology that is set to this area of electric leakage module 2 and disengaging deivce of earth leakage 12, and therefore not to repeat here.
Refer to Fig. 7, Fig. 8, Figure 10 and Figure 13 in conjunction with Fig. 3, Fig. 4, electric leakage module 2 described in the utility model comprises base 21, be located at the zero sequence current mutual inductor 22 on base 21, one group of conducting copper 23 through zero sequence current mutual inductor 22, be placed in the case 25 on zero sequence current mutual inductor 22, be arranged on circuit board module 24 on case 25 and for fastening with described base 21 and cover the cover plate 26 on circuit board module 24, on described base 21, there is the first cable hole 211, the second cable hole 212 and at least three the first installing holes 214, the power acquisition line-transect of described circuit board module 24 is arranged in the bottom of base by the first cable hole 211 and the second cable hole 212, and realize and being electrically connected with one group of conducting copper 23 through the first installing hole 214 respectively.On described base 21, also have venthole 213, the gas that described venthole 213 produces during for circuit breaker disjunction discharges.Described lid 13 side near disengaging deivce of earth leakage 12 under use state has trough 131, walks line three-way hole 132 and opening 133, be used for the location of the connecting line 121 of disengaging deivce of earth leakage 12, described connecting line 121 passes outside breaker body 1 and realizes and being electrically connected with the circuit board module 24 on described electric leakage module 2 after passing successively trough 131, walking line three-way hole 132 and opening 133.
Please continue to refer to Fig. 7, Fig. 8 and in conjunction with Fig. 9, Figure 11 and Figure 12, on one group of conducting copper 23 described in the utility model, there is the second installing hole 231, the second described installing hole 231 is for the connection of the power acquisition line-transect of circuit board module 24.Described circuit board module 24 comprises the first wiring board 241 and multiple the second wiring board 242, the first wiring board 241 and multiple the second wiring board 242 are layered laminate and are arranged on described case 25, the first described wiring board 241 is provided with test knob 2411, and described case 25 is provided with the bayonet socket 251 for described test knob 2411 is installed; The second described wiring board 242 has the first power acquisition line-transect 2421, second source sample line 2422 and the 3rd power acquisition line-transect 2423.Described case 25 also has the 3rd cable hole 252 and the 4th cable hole 253, and described the 3rd cable hole 252, the 4th cable hole 253 are for the location of circuit board module 24 power acquisition line-transects.
The installation of described disengaging deivce of earth leakage 12, particularly: first by the connecting line of disengaging deivce of earth leakage 12 21 successively through cover 13 trough 131, the breaker body 1(that walks described in passing after line three-way hole 132 and opening 133 is shown in Fig. 3), then disengaging deivce of earth leakage 12 is installed to cover 13 for holding the inside die cavity of disengaging deivce of earth leakage 12.
The installation of described electric leakage module 2, particularly: the first wiring board 241 of circuit board module 24 and multiple the second wiring board 242 are to layered laminate and are encased in case 25, test knob 2411 on the first wiring board 241 snaps onto in the bayonet socket 251 of case 25, the first power acquisition line-transect 2421, the second source sample line 2422 of the second wiring board 242 pass from the 3rd cable hole 252 of case 25, and the 3rd power acquisition line-transect 2423 passes (seeing Figure 11) from the 4th cable hole 253 of case 25; Simultaneously, case 25, zero-sequence transformer 22 and one group of conducting copper 23 through zero sequence current mutual inductor 22 are encased in base 21, and case 25 is placed in to (see figure 7) on zero sequence current mutual inductor 22, the 3rd power acquisition line-transect 2423 of the second wiring board 242 passes from the first cable hole 211 of base 21, and the first power acquisition line-transect 2421, second source sample line 2422 pass from the second cable hole 212 of base 21, be arranged in the bottom of base 21; Then with trip bolt, base 21 and case 25 are fixed; And then with attachment screw through the binding post of the first power acquisition line-transect 2421, second source sample line 2422 and the 3rd power acquisition line-transect 2423 and the first installing hole 214 is rear is connected with the second installing hole 231 on one group of conducting copper 23 respectively, the first power acquisition line-transect 2421, second source sample line 2422 and the 3rd power acquisition line-transect 2423 are linked in major loop; Finally with the fixing conducting copper 23 of trip bolt.
Described breaker body 1 is connected with electric leakage module 2, particularly: electric leakage module 2 is fixedly connected with (see figure 3) by one group of conducting copper 23 with the leading-out terminal of breaker body 1 by screw, connecting the rear venthole of breaker body 1 and the venthole 213 of electric leakage module 2 connects mutually.
Described disengaging deivce of earth leakage 12 is connected with circuit board module 24, particularly: the relevant position (see figure 5) that first connecting line 121 of disengaging deivce of earth leakage 12 that passes breaker body 1 is connected to circuit board module 24, then cover plate 26 is covered to circuit board module 24 and be fixed on (see figure 6) on the base 21 of described electric leakage module 2, on described lid 26, be provided with groove 261, described groove 261 is for supplying described connecting line 121 by (seeing Figure 13).
Claims (6)
1.
a kind of breaker of plastic casing with residual current protecting, it is characterized in that: comprise breaker body (1) and be fixedly connected on the electric leakage module (2) on described breaker body (1), described electric leakage module (2) comprises base (21), be located at the zero sequence current mutual inductor (22) on base (21), one group of conducting copper (23) through zero sequence current mutual inductor (22), be placed in the case (25) on zero sequence current mutual inductor (22) and be arranged on the circuit board module (24) on case (25), on described base (21), there is the first cable hole (211), the second cable hole (212) and at least three the first installing holes (214), the power acquisition line-transect of described circuit board module (24) is arranged in the bottom of base (21) by the first cable hole (211) and the second cable hole (212), and use attachment screw to realize and being electrically connected with one group of conducting copper (23) after being separately positioned on the first installing hole (214).
2.
a kind of breaker of plastic casing with residual current protecting according to claim 1, it is characterized in that described breaker body (1) comprises housing (11), be located at the lid (13) of the interior disengaging deivce of earth leakage (12) of housing (11) for covering described disengaging deivce of earth leakage (12) and being fixedly connected with described housing (11), described lid (13) side near disengaging deivce of earth leakage (12) under use state has trough (131) and walks line three-way hole (132) and opening (133), the connecting line (121) of described disengaging deivce of earth leakage (12) is passing trough (131) successively, after walking line three-way hole (132) and opening (133), realize and being electrically connected with described circuit board module (24).
3.
a kind of breaker of plastic casing with residual current protecting according to claim 1; it is characterized in that having the 3rd cable hole (252) and the 4th cable hole (253) on described case (25), described the 3rd cable hole (252), the 4th cable hole (253) are for the location of the power acquisition line-transect of described circuit board module (24).
4.
a kind of breaker of plastic casing with residual current protecting according to claim 1; it is characterized in that having the second installing hole (231) on described one group of conducting copper (23), described the second installing hole (231) is for the connection of the power acquisition line-transect of circuit board module (24).
5.
a kind of breaker of plastic casing with residual current protecting according to claim 1; it is characterized in that described circuit board module (24) comprises the first wiring board (241) and multiple the second wiring board (242); described the first wiring board (241) and multiple the second wiring board (242) are layered laminate and are arranged on described case (25); described the first wiring board (241) is provided with test knob (2411), and described case (25) is provided with the bayonet socket (251) for described test knob (2411) is installed.
6.
a kind of breaker of plastic casing with residual current protecting according to claim 1, the venthole (213) that the gas producing while being also provided with for the disjunction of confession circuit breaker on the base (21) described in it is characterized in that discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865385.9U CN203644718U (en) | 2013-12-26 | 2013-12-26 | Plastic-shell circuit breaker having residual-current protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865385.9U CN203644718U (en) | 2013-12-26 | 2013-12-26 | Plastic-shell circuit breaker having residual-current protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644718U true CN203644718U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320865385.9U Expired - Lifetime CN203644718U (en) | 2013-12-26 | 2013-12-26 | Plastic-shell circuit breaker having residual-current protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529220A (en) * | 2014-10-21 | 2016-04-27 | 通用电气公司 | Molded case circuit breaker with current sensing unit |
-
2013
- 2013-12-26 CN CN201320865385.9U patent/CN203644718U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529220A (en) * | 2014-10-21 | 2016-04-27 | 通用电气公司 | Molded case circuit breaker with current sensing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |