CN105719918A - Multibreak molded case circuit breaker - Google Patents
Multibreak molded case circuit breaker Download PDFInfo
- Publication number
- CN105719918A CN105719918A CN201610235189.1A CN201610235189A CN105719918A CN 105719918 A CN105719918 A CN 105719918A CN 201610235189 A CN201610235189 A CN 201610235189A CN 105719918 A CN105719918 A CN 105719918A
- Authority
- CN
- China
- Prior art keywords
- pole
- short circuit
- circuit conductor
- multibreak
- breaker
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
Abstract
The invention discloses a multibreak molded case circuit breaker, and belongs to the technical field of electric appliances. The multibreak molded case circuit breaker comprises an insulating shell at least comprising a first pole and a second pole, wherein a moving contact and a stationary contact in pairs are arranged in each pole of the substrate of the insulating shell, and the adjacent poles are separated from each other by an interpolar partition formed on the substrate; and in the first pole and the second pole, the moving contact of one pole is connected with the stationary contact of the adjacent pole in series via a short circuit conductor, and the short circuit conductor is arranged along the interpolar partition in the length direction of the interpolar partition. The convenience when in installation and use is embodied, and the whole volume of the circuit breaker is prevented from being increased; the requirements of high working voltage and high protection characteristics are met; the conductor and the insulating shell are convenient to install; and the safety and reliability when being used by the user are improved.
Description
Technical field
The invention belongs to technical field of electric appliances, be specifically related to a kind of multibreak breaker of plastic casing.
Background technology
Development along with new energy technology; low voltage component is had higher requirement; continuous expansion especially with solar energy power generating factory rules and regulations mould; the performance indications of electic protection element are required increasingly harsh by it; such as in photo-voltaic power supply straight-flow system; adopting the mode of connection that is connected in series of multibreak can improve the interrupting performance of chopper, for this, lot of domestic and foreign photovoltaic generation manufacturer proposes the various connection plans of chopper one after another.Connection plan commonly used at present is: carry out wiring at the external wiring terminal place of chopper, make chopper the two poles of the earth or more multi-stage series connection and use formation series-break.But, facts have proved that this mode of connection exists following shortcoming: owing to needing the short circuit conductor outside employing using on-the-spot (namely installation is on-the-spot) that chopper is carried out wiring, thus lose the convenience of wiring on the one hand, take up room on the other hand big, and due in engineer applied often because the wiring at binding post place does not reach the length of regulation, the heat accumulation thus resulting in junction increases, then heat can be transferred to the inside of chopper with thermaltransmission mode, have a direct impact adopting the bimetal leaf long delay acting characteristic as the electrical apparatus release of long delay protection, in turn result in breaker protective property inaccuracy.For this, the applicant has done literature search, but is showed no all enlightenments being addressed aforementioned technical problem in disclosed China and foreign countries' patent and non-patent literature up to now.
Summary of the invention
The task of the present invention is in that to provide a kind of user of helping avoid to use convenience when embodying use in the wiring work of installation field joint line terminals operation formation series-break, be conducive to using the multibreak breaker of plastic casing avoiding increasing the overall volume of chopper so that preset connected mode realizes interpolar series connection formation series-break.
The task of the present invention is performed by, a kind of multibreak breaker of plastic casing, including an insulation shell at least with the first pole and the second pole, this insulation shell pedestal each pole be internally provided be made into each other to a moving contact and a static contact, and the interpolar partition wall by being formed on pedestal is spaced from each other between two neighboring pole, described the first pole and second extremely in, wherein it is connected in series by short circuit conductor between the described moving contact of a pole with the static contact of an adjacent pole, and this short circuit conductor is arranged along described interpolar partition wall at the length direction of described interpolar partition wall.
In a specific embodiment of the present invention, constituting and have short circuit conductor to hold chamber on described interpolar partition wall and in the position corresponding to described short circuit conductor, short circuit conductor is inserted and is embedded in this short circuit conductor accommodation intracavity.
In another specific embodiment of the present invention, described insulation shell also includes a cap matched with described pedestal, in this cap side towards pedestal and constitute in the position holding chamber corresponding to described short circuit conductor and have one for stoping described short circuit conductor to hold the short circuit conductor limited block of intracavity play at short circuit conductor.
In another specific embodiment of the present invention, described short circuit conductor is close to the wherein side outside described interpolar partition wall, and is coated with insulation shell at short circuit conductor, to form sealing coat on described short circuit conductor surface.
In another specific embodiment of the present invention, described multibreak breaker of plastic casing also includes the 3rd pole, two the first binding posts to external connection and two the second binding posts to external connection, one of them first binding post and the described static contact of the first pole in two the first binding posts electrically connect, and the static contact electrical connection of another first binding post in two the first binding posts and the 3rd pole, one of them second binding post and the described moving contact of the 3rd pole in two the second binding posts electrically connect, and the described moving contact electrical connection of another second binding post of two the second binding posts and the second pole.
In an also specific embodiment of the present invention, described multibreak breaker of plastic casing also includes one first joint cover and one second joint cover, the described moving contact electrical connection of the first joint cover and the first pole, and electrically connect with described short circuit conductor, the described moving contact electrical connection of the second joint cover and the second pole, and non-wiring place is being provided with protective cover.
Entering in a specific embodiment in the present invention, described static contact and described short circuit conductor are integrally constituted structure.
In more and in a specific embodiment of the present invention, described multibreak breaker of plastic casing also includes at least one electrical apparatus release.
Technical scheme provided by the invention have the technical effect that owing to the mode that have employed preset connection will be connected in series by short circuit conductor between the moving contact of a wherein pole and the static contact of an adjacent pole, because forming the wiring work of series-break in installation field joint line terminals operation without user, both can embody convenience when installing and using, be avoided that again the overall volume increasing chopper；Owing to long delay characteristic can be adjusted under the wiring situation of preset connection, thus the long delay acting characteristic adopting bimetal leaf as the electrical apparatus release of long delay protection can be ensured；Preset connected mode is adopted to make chopper realize multibreak series winding; increase the cut-off port of short circuit current, make each fracture undertake a part of voltage and corresponding arc energy respectively, be easy to chopper disjunction when high working voltage; meet high working voltage, the requirement of high protection feature；Conductor is easy for installation with insulation shell, and conductor profile is without departing from insulation shell, and chopper overall dimensions will not increase；Corresponding protective cover is assembled at conductor place simultaneously, improves the security reliability that user uses.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of the first embodiment of the present invention.
Fig. 2 is the electrical schematic diagram of the second embodiment of the present invention.
Fig. 3 is the profile three-dimensional structure diagram of the present invention.
Fig. 4 is the three-dimensional exploded view of Fig. 3.
Fig. 5 is the structure chart after Fig. 3 removes pedestal and cap.
Fig. 6 is the schematic diagram observed from another angle after Fig. 3 removes pedestal and cap.
Fig. 7 is the top view after Fig. 3 removes cap.
Fig. 8 is the top view of the pedestal shown in Fig. 4.
Fig. 9 is the schematic diagram of another angle of the pedestal shown in Fig. 4.
Figure 10 is the upward view of the cap shown in Fig. 3 and Fig. 4.
Figure 11 is the electrical schematic diagram of the third embodiment of the present invention.
Detailed description of the invention
Embodiment 1:
Refer to Fig. 1 and 3 to 11, illustrate a kind of multibreak breaker of plastic casing, this multibreak breaker of plastic casing includes the insulation shell 1 at least with the first pole and the second pole, the insulation rotating shaft 7 being arranged in insulation shell 1 and contact system and electrical apparatus release 6, each extremely internal at insulation shell 1 is both provided with a contact system, and each contact system includes moving contact 2 and the static contact 3 cooperated.Owing to the present embodiment is a kind of three pole breaker of plastic casing, thus aforesaid insulation shell 1 has the first pole, the second pole and the 3rd pole, and described the first pole, the second pole and the 3rd pole arrangement mode are arrange from right to left in Fig. 1.Aforesaid contact system also has three, moving contact 2 and static contact 3 also should have three mutually, three static contacts 3 fixedly mount on the base 11, and three static contacts 3 are placed in same one end of pedestal 11, three static contacts 3 are placed in the upper end of pedestal 11 as shown in Figure 4 in this embodiment, the upside of namely insulation rotating shaft 7, aforesaid moving contact 2 is corresponding with static contact 3, the spring (not shown) that three moving contacts 2 are identical with moving contact 2 quantity is respectively arranged in insulation rotating shaft 7, mutually insulated between each moving contact 2 after installation, can rotate relative to insulation rotating shaft 7 within the specific limits respectively, insulation rotating shaft 7 is rotatably mounted on the pedestal 11 of aforesaid insulation shell 1.Namely separated by the interpolar partition wall 111 on pedestal 11 between two neighboring pole between aforesaid first pole, the second pole and the 3rd pole, two interpolar partition walls 111 all offer U-shaped groove 1115, aforesaid insulation rotating shaft 7 hub setting, in two U-shaped grooves 1115, can drive moving contact 2 and static contact 3 to be switched on or switched off.
Multibreak breaker of plastic casing of the present invention also includes two the first binding posts to external connection and two the second binding posts to external connection, one of them first binding post of two the first binding posts and the static contact 3 of the first pole electrically connect, and the static contact 3 of another first binding post in two the first binding posts and the 3rd pole electrically connects, one of them in two the second binding posts connects the second line terminals and electrically connects with the moving contact 2 of the 3rd pole, and the moving contact 2 of another second binding post in two the second binding posts and the second pole electrically connects.In insulation shell 1, concatenated by short circuit conductor 4 between static contact 3 and the moving contact 2 of the first adjacent pole of the second pole.The static contact 3 of aforesaid second pole and the first short circuit conductor 4 both can be separate, it is possible to one-body molded making, were namely integrally constituted structure (the present embodiment selection integrative-structure).
Offer the short circuit conductor holding short circuit conductor 4 on the length direction of the interpolar partition wall 111 between aforementioned first pole and the second pole and in the position corresponding to aforementioned short circuit conductor 4 and hold chamber 1111, the first open slot 1112 is offered at static contact 3 place near the second pole, the second open slot 1113 is offered at the afterbody place of the moving contact 2 near the first pole, first open slot 1112 and the second open slot 1113 for short circuit conductor 4 through the electrical connection the static contact 3 and the moving contact 2 of the first adjacent pole of the second pole, aforesaid short circuit conductor 4 through (by way of) U-shaped groove 1115 time be placed in insulation rotating shaft 7 times, and the two cavity wall mutually insulateds in chamber 1111 are held between short circuit conductor 4 and the static contact 3 of the moving contact 2 of the second pole and the first adjacent pole by short circuit conductor.Constitute on the cap 12 of the insulation shell 1 of aforesaid chopper and in the position corresponding to short circuit conductor 4 and have short circuit conductor limited block 121, this limited block 121 holds chamber 1111 when pedestal 11 assembles with cap 12 with aforesaid short circuit conductor and coordinates, both limit short circuit conductor 4 and moved up and down (play), improve again short circuit conductor 4 insulation effect.
In the present embodiment, aforesaid chopper has the first joint cover 8 and the second joint cover 9, and this first joint cover 8 is electrically connected with the moving contact 2 of the first pole by the first moving contact wire 21 of the moving contact 2 of the first pole, and electrically connects with short circuit conductor 4；Second joint cover 9 one end is electrically connected with the moving contact 2 of the second pole by the second moving contact wire 22 of the moving contact 2 of the second pole, the other end is arranged on the first pole and as the chopper the second binding post to external connection, and the interpolar partition wall 111 between the first pole and the second pole is offering the 3rd open slot 1114 near the second joint cover 9 place.
Referring to Fig. 7, in the present embodiment, aforesaid multi-break plastic-shell type circuit breaker is additionally provided with at least one electrical apparatus release 6, is arranged on the 3rd pole；The static contact 3 of the second pole is electrically connected with the first joint cover 8 by short circuit conductor 4 with the moving contact 2 of the first pole, short circuit conductor 4 adopts hard conductor, second moving contact wire 22 of the moving contact 2 of the second pole is connected to the second joint cover 9 through the 3rd open slot 1114 the first pole and the second pole, makes the second joint cover 9 as the chopper the second binding post to external connection.Second moving contact wire 22 of the aforesaid pedestal 11 moving contact 2 in the second pole and the second joint cover 9 wiring place are provided with baffle plate 112, and this baffle plate 112 can make mutually insulated between the second moving contact wire 22 and the short circuit conductor 4 of the moving contact 2 of the second pole.
It is respectively equipped with protective cover 5 on aforesaid insulation shell 1 and in the upper and lower parts corresponding to the second pole.
Explanation from above-described embodiment 1, what enumerate due to embodiment 1 is three pole breaker of plastic casing, thus namely contains following four mode by what short circuit conductor 4 carried out being connected in series containing any one meaning in following four mode between moving contact 2 and the static contact 3 of an adjacent pole of a wherein pole: concatenated by short circuit conductor 4 between the static contact 3 of A. the second pole with the moving contact 2 of the 3rd adjacent pole；B. concatenated by short circuit conductor 4 between the static contact 3 of the first pole with the moving contact 2 of the second adjacent pole；C. concatenated by short circuit conductor 4 between the static contact 3 of the 3rd pole with the moving contact of the second adjacent pole；D. concatenated by short circuit conductor 4 between the static contact 3 of the second pole with the moving contact 2 of the first adjacent pole.
Embodiment 2:
Refer to Fig. 2, give the electric key wiring diagram of quadrupole breaker of plastic casing.Including having the first pole, the second pole, the 3rd pole and the quadrupole insulation shell 1, described the first pole, the second pole, the 3rd pole and quadrupole arrangement mode are arrange from right to left in Fig. 2.Now, first binding post and two modes of connection to the second binding post of external connection of external connection are by two of aforesaid multi-break plastic-shell type circuit breaker: one of them first binding post of two the first binding posts and the static contact 3 of the first pole electrically connect, and another first binding post in two the first binding posts and the quadrupole static contact 3 electrically connect, one of them second binding post and the moving contact 2 of the second pole in two the second binding posts electrically connect, and the moving contact 2 of another second binding post in two the second binding posts and the 3rd pole electrically connects, and second pole static contact 3 and the moving contact 2 of the first adjacent pole between concatenated by short circuit conductor 4, concatenated by short circuit conductor 4 between the static contact 3 of the 3rd pole and adjacent the quadrupole moving contact 2.All the other electric connection mode are identical with embodiment 1.
Being respectively equipped with protective cover 5 in the upper and lower parts corresponding to the second pole, the 3rd pole on aforesaid insulation shell 1, all the other are all with the description to embodiment 1.
Embodiment 3:
Refer to Figure 11, give the electric key wiring diagram of two pole breaker of plastic casing.By in the above embodiments 1, described short circuit conductor 4 may be used on two pole breaker of plastic casing.Two pole breaker of plastic casing only include the insulation shell 1 with the first pole, the second pole, and described the first pole, the second pole arrangement mode are right to left bank row from Figure 11.Concatenated by short circuit conductor 4 between static contact 3 and the moving contact 2 of the first adjacent pole of aforesaid second pole, on the length direction of the interpolar partition wall 111 that short circuit conductor 4 is arranged between aforementioned first pole and the second pole, and offer the short circuit conductor holding short circuit conductor 4 in the position corresponding to aforementioned short circuit conductor 4 and hold chamber 1111, now, two modes of connection to the binding post of external connection of aforesaid multi-break plastic-shell type circuit breaker are: the static contact 3 of one of them binding post and the first pole electrically connects, and the moving contact 2 of another binding post and the second pole electrically connects.Being respectively equipped with protective cover 5 at the upper bit corresponding to the first pole lower portion, the second pole on aforesaid insulation shell 1, all the other are all with the description to embodiment 1.
Short circuit conductor 4 described in the enforcement of the present invention is when interpolar partition wall 111 length direction is arranged along described interpolar partition wall 111, also the wherein side outside interpolar partition wall 111 (being namely close to) can be close to the wall body of the wherein side of interpolar partition wall 111, for guaranteeing the insulating properties of short circuit conductor 4, insulation shell need to be coated with, to form sealing coat on described short circuit conductor 4 surface at short circuit conductor 4.This insulation shell can be the housing that insulant is made, it is also possible to be entwined by insulating tape, or spray insulation paint.
Claims (8)
1.A kind of multibreak breaker of plastic casing, including an insulation shell (1) at least with the first pole and the second pole, being internally provided with of each pole of the pedestal (11) in this insulation shell (1) be made into each other to a moving contact (2) and a static contact (3), and the interpolar partition wall (111) by being formed on pedestal (11) is spaced from each other between two neighboring pole, it is characterized in that described the first pole and second extremely in, wherein it is connected in series by short circuit conductor (4) between described moving contact (2) and the static contact (3) of an adjacent pole of a pole, and this short circuit conductor (4) is arranged along described interpolar partition wall (111) at the length direction of described interpolar partition wall (111).
2.Multibreak breaker of plastic casing according to claim 1, it is characterized in that upper at described interpolar partition wall (111) and have short circuit conductor to hold chamber (1111) in the position composition corresponding to described short circuit conductor (4), short circuit conductor (4) is inserted and is embedded in this short circuit conductor accommodation chamber (1111).
3.Multibreak breaker of plastic casing according to claim 2, it is characterized in that described insulation shell (1) also includes a cap (12) matched with described pedestal (11), in this cap (12) side towards pedestal (11) and constitute in the position holding chamber (1111) corresponding to described short circuit conductor and have one for stoping described short circuit conductor (4) to hold the short circuit conductor limited block (121) of play in chamber (1111) at short circuit conductor.
4.Multibreak breaker of plastic casing according to claim 1, it is characterized in that described short circuit conductor (4) is close to the wherein side that described interpolar partition wall (111) is outside, and it is coated with insulation shell at short circuit conductor (4), to form sealing coat on described short circuit conductor (4) surface.
5.Multibreak breaker of plastic casing according to claim 1, it is characterized in that described multibreak breaker of plastic casing also includes the 3rd pole, two the first binding posts to external connection and two the second binding posts to external connection, one of them first binding post and the described static contact (3) of the first pole in two the first binding posts electrically connect, and static contact (3) electrical connection of another first binding post in two the first binding posts and the 3rd pole, one of them second binding post and the described moving contact (2) of the 3rd pole in two the second binding posts electrically connect, and described moving contact (2) electrical connection of another second binding post of two the second binding posts and the second pole.
6.Multibreak breaker of plastic casing according to claim 1, it is characterized in that described multibreak breaker of plastic casing also includes one first joint cover (8) and one second joint cover (9), first joint cover (8) electrically connects with the described moving contact (2) of the first pole, and electrically connect with described short circuit conductor (4), second joint cover (9) electrically connects with the described moving contact (2) of the second pole, and non-wiring place is being provided with protective cover (5).
7.Multibreak breaker of plastic casing according to claim 1, it is characterised in that described static contact (3) and described short circuit conductor (4) are integrally constituted structure.
8.Multibreak breaker of plastic casing according to claim 1, it is characterised in that described multibreak breaker of plastic casing also includes at least one electrical apparatus release (6)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610235189.1A CN105719918B (en) | 2016-04-15 | 2016-04-15 | Multibreak breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610235189.1A CN105719918B (en) | 2016-04-15 | 2016-04-15 | Multibreak breaker of plastic casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105719918A true CN105719918A (en) | 2016-06-29 |
| CN105719918B CN105719918B (en) | 2019-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610235189.1A Active CN105719918B (en) | 2016-04-15 | 2016-04-15 | Multibreak breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105719918B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018006768A1 (en) * | 2016-07-06 | 2018-01-11 | 上海电科电器科技有限公司 | Electrically conductive loop of circuit breaker |
| EP3291277A1 (en) * | 2016-08-31 | 2018-03-07 | LSIS Co., Ltd. | Trip mechanism for direct current molded case circuit breaker |
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| CN102456515A (en) * | 2010-10-20 | 2012-05-16 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| CN102568945A (en) * | 2010-12-02 | 2012-07-11 | 伊顿公司 | Configurable electrical switching apparatus including a plurality of separable contacts and a plurality of field-configurable jumpers to provide a number of poles |
| CN102592903A (en) * | 2011-01-10 | 2012-07-18 | 北京人民电器厂有限公司 | Multi-breakpoint circuit breaker |
| CN203192715U (en) * | 2013-03-07 | 2013-09-11 | 上海华声电气研究所 | Breaker |
| CN205542635U (en) * | 2016-04-15 | 2016-08-31 | 常熟开关制造有限公司(原常熟开关厂） | Multibreak moulded case circuit breaker |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102456515A (en) * | 2010-10-20 | 2012-05-16 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| CN102568945A (en) * | 2010-12-02 | 2012-07-11 | 伊顿公司 | Configurable electrical switching apparatus including a plurality of separable contacts and a plurality of field-configurable jumpers to provide a number of poles |
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| CN203192715U (en) * | 2013-03-07 | 2013-09-11 | 上海华声电气研究所 | Breaker |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018006768A1 (en) * | 2016-07-06 | 2018-01-11 | 上海电科电器科技有限公司 | Electrically conductive loop of circuit breaker |
| EP3483912A4 (en) * | 2016-07-06 | 2020-01-15 | Seari Electric Technology Co., Ltd. | Electrically conductive loop of circuit breaker |
| EP3291277A1 (en) * | 2016-08-31 | 2018-03-07 | LSIS Co., Ltd. | Trip mechanism for direct current molded case circuit breaker |
| CN107785218A (en) * | 2016-08-31 | 2018-03-09 | Ls 产电株式会社 | Tripping mechanism for direct current molded case circuit breakers |
| CN107785218B (en) * | 2016-08-31 | 2019-06-11 | Ls 产电株式会社 | Tripping mechanism for direct current molded case circuit breakers |
| US10332714B2 (en) | 2016-08-31 | 2019-06-25 | Lsis Co., Ltd. | Trip mechanism for direct current molded case circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105719918B (en) | 2019-06-21 |
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