CN1364302A - Contact depression stabilizer for 4 pole molded case circuit breaker - Google Patents
Contact depression stabilizer for 4 pole molded case circuit breaker Download PDFInfo
- Publication number
- CN1364302A CN1364302A CN 01800414 CN01800414A CN1364302A CN 1364302 A CN1364302 A CN 1364302A CN 01800414 CN01800414 CN 01800414 CN 01800414 A CN01800414 A CN 01800414A CN 1364302 A CN1364302 A CN 1364302A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- main body
- stabilizer
- folder
- molded case
- 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.)
- Pending
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
- H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
-
- 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
- H01H71/1009—Interconnected mechanisms
-
- 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
- H01H71/1009—Interconnected mechanisms
- H01H2071/1036—Interconnected mechanisms having provisions for four or more poles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
Landscapes
- Breakers (AREA)
Abstract
A stabilizer clamp (39) for locking together the rods (34) that connect an operating mechanism (4) in a four pole molded case circuit breaker (4) to a rotary contact arm of the outer circuit breaker cassette, and eliminating the relative motion between the rods (34) thereby better transmitting the torque from the operating mechanism (4) and stabilizing the outer pole's operation.
Description
Background of invention
The present invention relates to a kind of clamping device, the rod lock that is used for multipole molded case circuit breaker is connected the rotation contact arm together.
As everyone knows, in the multipole circuit breaker technology, the rotation contact arm in each circuit breaker box links together consistent to guarantee its operation with at least one bar (being generally drive rod and support bar).In quiescent operation, the lever of (promptly when connecting shutdown device contact so that electric current when flowing through) operating mechanism is in " leading to " position.For by the manual operation turn-off current, handle can be switched to " breaking " position, disconnect electrical contact thus.When reaching predetermined state (trip phenomenon), as earth fault or overload, the operating mechanism of circuit breaker can relieving mechanism operating spring power and lever is placed on trip position between " leading to " position and " breaking " position.Circuit breaker is being turned to " leading to " before, must operating mechanism resetted by manual operation.Above-mentioned reset operation can be placed into operating grip on one side of " breaking " position by the bias voltage of opposing operating mechanism spring and realize, thereby operating mechanism is locked in the appropriate location.
Circuit breaker box in the multipole molded case circuit breaker preferably and two bars that dock with rotation contact arm in each circuit breaker box link together.In typical three utmost point molded case circuit breakers, operating mechanism is on the box that is symmetricly set between two circuit breaker box.In other words, if three boxes of several from left to right three box-type circuit breakers, then operating mechanism is arranged on second box.Knownly require all boxes to trip as far as possible simultaneously for circuit breaker with a plurality of boxes.For this reason, at least one being set usually generally is two bars that pass all boxes extensions in the specific circuit breaker box.Because tripping operation, this bar converts rotatablely moving in the box to motive force that other box is also tripped.Because the mechanical property of the connection of bar, the first and the 3rd box can change the position when second box changes the position.Identical therewith, any two boxes all can be reacted to arbitrary box generation trip phenomenon rapidly.This is to be activated by operating mechanism because of bar, and because each box of three-pole breaker all is close to operating mechanism or operating of contacts mechanism, does not therefore have loss of machine of torque.Because adjacent second box of the first and the 3rd box, and second box attended operation mechanism mechanically, so almost do not have relative motion between the bar, as was expected works well for they.
With regard to four independent boxes in being contained in four-pole circuit breaker were operated simultaneously, also there was other problem in four-pole circuit breaker, because common the 4th circuit breaker box is attached to an end of three box circuit breaker structures.This has got rid of any variation of operating mechanism.Specifically, operating mechanism still is arranged on second circuit breaker box.Like this, those of ordinary skill in the art will know: single box is arranged on a side of the box that is connected with operating mechanism in four-pole circuit breaker, and two boxes are arranged on the opposite side of the box that is connected with operating mechanism.So the bar that connects all boxes in the circuit breaker can further extend to outer box on the side than opposite side.Because the relative motion between the bar the and influence length of the effectively flexible bar of bar, outer box can not resemble the close box of operating mechanism setting rapid motion to operating mechanism and react.Because the motion of expectation outer box is rapid as far as possible, therefore, people are seeking to quicken the measure of outer box motion always.
The four-pole circuit breaker scheme attempts to comprise the device that is attached to the auxiliary body on the outer box, or about the symmetrically arranged big operating mechanism of rotating contact assembly.Although these selectable schemes are quickened the outer box motion, also improved manufacturing expense.Therefore, the technical staff constantly seeks reliable and structure that expense is low to reduce the relative motion between the bar and to quicken the motion of the outer box in the 4 pole molded case circuit breaker of asymmetric setting.
Summary of the invention
In an embodiment of the present invention, on the drive rod and support bar that folder are attached to circuit breaker, for example between the 3rd, the 4th box of circuit breaker, and reliably and at low cost realize contact motion in the single box of the multipole circuit breaker that causes by the operation of trip phenomenon or operating mechanism.
This folder preferably includes and can hold drive rod and support bar and make drive rod and the relatively-stationary surface texture featur of support bar.By preventing the relative motion of drive rod and support bar, move owing to the driving of operating mechanism or trip phenomenon make outer box be subjected to as the first or the 3rd box big motive force, and first box and the 3rd box nestle up second box that operating mechanism is installed.
This folder can be made of metal or single piece of plastic material, removes material from it holding bar, or is made of the multiple individual components that can be connected to by different devices, obtains required result simultaneously: make the relative motion minimum between the bar.
Brief Description Of Drawings
By embodiment the present invention is described referring now to accompanying drawing, wherein:
Fig. 1 is the top perspective view of molded case circuit breaker;
Fig. 2 is the isometric exploded view of molded case circuit breaker;
Fig. 3 is the isometric exploded view of stabilizer folder, drive rod and support bar;
Fig. 4 is the stereogram that is assemblied in the stabilizer folder on drive rod and the support bar;
Fig. 5 is the isometric exploded view of another embodiment of folder of the present invention; And
Fig. 6 is mounted in the isometric exploded view of another 1 folder on drive rod and the support bar.
Preferred embodiment is described
Fig. 1 has provided the top perspective view as the multicircuit interrupt mechanism of molded case circuit breaker 2.Molded case circuit breaker 2 is connected in usually in the protective circuit between the load (not shown) that the power supply (not shown) leggy that places line end 6 and load end 8 places will protect.Molded case circuit breaker 2 comprises base 10, middle cover 12 and auxilliaryly cover 14, assist cover 14 have the escutcheon of passing 18 and with circuit breaker operation mechanism 4 interconnective levers 16.
With reference to Fig. 2, provided the decomposition view of molded case circuit breaker 12.Auxiliary 20 as the electronic trip actuator, along separate routes trip actuator, under voltage actuator, belling are reported to the police or the auxiliary of other type, is arranged in the middle cover 12 and with operating mechanism 4 to be connected usually.Four circuit breaker box, promptly first circuit breaker box 22, second circuit breaker box 24, the 3rd circuit breaker box 26, the 4th circuit breaker box 28 are encapsulated in base 10 and the middle cover 12.Each circuit breaker box be usually known and can be rotary-type box.
Illustrated circuit breaker (four utmost points) is configured to four phase currents are transferred to version on the load (not shown), and is wherein every mutually by a circuit breaker box.Each circuit breaker box comprises a rotation contact arm, and therefrom conducting of electric current when the rotation contact arm is closed stops current lead-through when contact arm is opened.Can change the certain kinds flask of number of phases or use according to various factors, these factors comprise the load circuit type that will protect and will offer the circuit input type of circuit breaker, but are not limited to above-mentioned factor.
Circuit breaker box is assembled in the base 10, make first circuit breaker box 22 be arranged in an end of base 10 (at Fig. 2 left part), the other end that the 4th circuit breaker box 28 is arranged in base 10 (at Fig. 2 right part), second circuit breaker box 24 and the 3rd circuit breaker box 26 are placed therebetween.On operating mechanism 4 straddle mountings second circuit breaker box 24.Operating mechanism 4 is handled to control " leading to ", " breaking " position of second circuit breaker box, 24 inward turnings switching contact arm (not shown) by lever 16.
The operating mechanism 4 that shows generally include lever 16, breech lock 32 and additional connecting rod so as to make operating mechanism 4 and second circuit breaker box 24 between interact.Rotation contact arm in each connecting rod and mechanism's spring (is known technology but needn't illustrate) the motion circuit breaker box.Give box 22,26 and 28 interior rotation contact arms by drive rod 34 with the Motion Transmission of box 24 inward turnings switching contact arm.This motion can be by manually or machinery promote the no current operation of lever 16, perhaps auxiliary 20 is owing to trigger this motion unusually in the circuit.
Rotation contact arm in first circuit breaker box 22 of operating mechanism 4 one sides links together with drive rod 34 and support bar 36 with rotation contact arm in third and fourth circuit breaker box 26,28 of operating mechanism 4 opposite sides and the tripped condition that causes according to the electric current that multi-pole circuit is interrupted fully or the state that manually causes and consistent moving.
Under the situation of nonequilibrium system, promptly with respect to the asymmetric circuit breaker box device of operating mechanism, drive rod 34 extends far more with support bar 36 relative operating mechanisms 4, then easy more generation relative motion between two bars.In 4 pole molded case circuit breaker, drive rod 34 that links to each other with the 4th circuit breaker box and the relative motion between the support bar 36 produce the torque loss by torque operation mechanism 4 to the 4th circuit breaker box, 28 inward turnings switching contact arm.Stabilizer folder 38 reduces the relative motion between drive rod 34 and the support bar 36 and makes bar breakdown torque can be passed to the rotation contact arm of box 28 thus.
With reference to Fig. 3, other parts of the drive rod 34 of demonstration, support bar 36 and folder 38 and circuit breaker are separated from each other and are decomposing state.An embodiment of stabilizer folder 38 (as shown in the figure) preferably is made of from one piece (main body 39).This material can be any material that stability can be provided for two bars.Preferred material includes but not limited to metal or plastics.In this embodiment, be provided with porosely 40 in folder, the size in selected hole 40 can adapt to the shape of drive rod 34 and support bar 36.When being positioned at folder in the circuit breaker, make drive rod 34 location by hole 40, make support bar 36 location by another hole 40.Although preferred construction is to make stabilizer folder 38 have the groove 44 that is extended to another hole 40 by hole 40, bar preferably is fixed on and can operates on the desired location of folder in several modes.Groove 44 and hole 40 are divided into top 48 and bottom 50 with folder 38, make can carry out elastic movement between top 48 and the bottom 50.By pushing top 48 to size that bottom 50 changes hole 40.This change has reduced the size by 50 measurements of top 48 to bottom.The size that reduces in each hole 40 can make folder that bar is clamped in each hole.When the enough angle of suitable arrangement one, this clamping action can make bar safety return and reduce therebetween relative motion.
With regard to top 48 and bottom 50 toward each other with regard to the pushing tow, a kind of preferred secure component is a screw 46.Adopt among the embodiment of screw one, screw passes top 48 and is screwed into bottom 50 by screwed hole 51 by mesopore 49.Trip bolt 46 presses against together and makes as mentioned above hole 40 thus they to be locked together around bar tightly on top 48 and bottom 50.
With reference to Fig. 4, stabilizer folder 38 is shown as and is installed on drive rod 34 and the support bar 36, and rod lock is prevented to carry out betwixt relative motion together, thereby reduces the torque loss that causes owing to the relative motion between the bar.
Fig. 5 and 6 has shown decomposition and the assembling diagrammatic sketch of the another kind of folder of the present invention about drive rod and support bar respectively.Fig. 5 is consistent with Fig. 3 and 4 in others with 6.Same parts in Fig. 5 and 6 reuse Fig. 3 and the label that adopted in 4 o'clock are described in detail in detail and to being similar to previous embodiment but part inequality represent with alphabetical " a ".Those of ordinary skill in the art can be from observing accompanying drawing and knowing and understand this embodiment with reference to above-mentioned detailed description.
When reference preferred embodiment explanation is of the present invention, it will be understood by those skilled in the art that and to make various changes and can replace each parts and do not depart from the scope of the present invention with equivalent.In addition, can make many improvement so that particular case or material adapt to instruction of the present invention and do not break away from essential scope.Therefore, the invention is not restricted to realizing the disclosed specific embodiment of best mode of the present invention, but comprise all embodiment that fall in the accessory claim scope.
Claims (19)
1. a multipole circuit breaker stabilizer folder (38) comprising:
Main body (39);
A plurality of holes (40) are formed in the described main body (39) and have the size of the drive rod (34) and the support bar (36) of the separation that can hold circuit breaker (2); And
Main body securing member (46) can tighten up described main body (39) reducing the size of hole (40), thereby the drive rod (34) and the support bar (36) that will extend through described hole (40) is fixed therein.
2. stabilizer folder as claimed in claim 1 (38), wherein said main body (39) is made of metal.
3. stabilizer folder as claimed in claim 1 (38), wherein said main body (39) is made of plastics.
4. stabilizer folder as claimed in claim 1 (38), wherein said hole (40) have with drive rod (34) and support bar (36) complimentary geometries so that make drive rod and support bar passes wherein.
5. stabilizer folder as claimed in claim 1 (38), wherein said main body (39) securing member is screw (46).
6. stabilizer folder as claimed in claim 1 (38), wherein said described main body (39) further comprise the groove (44) that extends to each hole in described a plurality of hole (40).
7. stabilizer folder as claimed in claim 1 (38), wherein said a plurality of holes (40) are two holes.
8. stabilizer folder as claimed in claim 1 (38), wherein said main body (39) is a from one piece.
9. stabilizer folder as claimed in claim 1 (38), wherein said main body (39) are by screw (46) two materials of secure fixation each other on drive rod (34) and support bar (36).
10. a multipole molded case circuit breaker (2) comprising:
Shell (10);
Middle cover (12) is installed in described shell (10) and upward and with described shell (10) forms internal cavities;
A plurality of circuit breaker box (22) are installed in the described internal cavities;
Operating mechanism (4) is used to open and close described circuit breaker box (22), is operably connected with described box;
A plurality of bars (34) operationally are interconnected with one another described circuit breaker box (22); And
Stabilizer folder (38) cooperatively interacts to reduce relative motion therebetween with described bar (34).
11. a multipole molded case circuit breaker as claimed in claim 10 (2) further comprises:
Main body (39);
A plurality of holes (40) are formed in the described main body (39), and set drive rod (34) and support bar (36) that its size can be held the separation of circuit breaker (2); And
Main body securing member (46) can shrink described main body to reduce the size of described hole (40), and the drive rod (34) and the support bar (36) that will extend through described hole (40) thus are fixed therein.
12. multipole molded case circuit breaker as claimed in claim 11 (2), wherein said main body (39) is made of metal.
13. multipole molded case circuit breaker as claimed in claim 11 (2), wherein said main body (39) is made of plastics.
14. having with drive rod (34) and support bar (36) complimentary geometries, multipole molded case circuit breaker as claimed in claim 11 (2), wherein said hole (40) make drive rod and support bar passes wherein.
15. multipole molded case circuit breaker as claimed in claim 11 (2), wherein said main body securing member are screw (46).
16. multipole molded case circuit breaker as claimed in claim 11 (2), wherein said main body (39) further comprise the groove (44) that extends to each hole in described a plurality of hole (40).
17. multipole molded case circuit breaker as claimed in claim 11 (2), wherein said a plurality of holes (40) are two holes.
18. multipole molded case circuit breaker as claimed in claim 11 (2), wherein said main body (39) is a from one piece.
19. multipole molded case circuit breaker as claimed in claim 11 (2), wherein said main body (39) are around drive rod (34) and support bar (36) two materials fixed to one another by screw (46).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51793400A | 2000-03-03 | 2000-03-03 | |
| US09/517,934 | 2000-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1364302A true CN1364302A (en) | 2002-08-14 |
Family
ID=24061842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01800414 Pending CN1364302A (en) | 2000-03-03 | 2001-03-01 | Contact depression stabilizer for 4 pole molded case circuit breaker |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1206783A2 (en) |
| CN (1) | CN1364302A (en) |
| MX (1) | MXPA01011074A (en) |
| PL (1) | PL351089A1 (en) |
| WO (1) | WO2001067473A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087935A (en) * | 2009-12-04 | 2011-06-08 | Ls产电株式会社 | Rotation pin correction mechanism for four poles mold cased circuit breaker |
| CN101154539B (en) * | 2006-09-29 | 2011-11-16 | 河村电器产业株式会社 | Circuit breaker |
| CN109741996A (en) * | 2019-01-18 | 2019-05-10 | 德力西电气有限公司 | A kind of breaker |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100689324B1 (en) * | 2005-10-05 | 2007-03-08 | 엘에스산전 주식회사 | Multi pole circuit breaker |
| DE102009033541A1 (en) * | 2009-07-14 | 2011-01-20 | Siemens Aktiengesellschaft | Multipolar electrical switch, particularly fuse-switch for use in switch box, e.g. busbar trunking tap-unit, has multiple switching modules which are modularly assembled |
| US10276336B2 (en) | 2015-03-06 | 2019-04-30 | Abb Schweiz Ag | Circuit breaker assembly including a circuit breaker connector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8521997U1 (en) * | 1985-07-31 | 1985-10-24 | Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen | Clamp fixator for fixing holding pins screwed into bone parts |
| FR2682530B1 (en) * | 1991-10-15 | 1993-11-26 | Merlin Gerin | RANGE OF LOW VOLTAGE CIRCUIT BREAKERS WITH MOLDED HOUSING. |
-
2001
- 2001-03-01 WO PCT/US2001/006630 patent/WO2001067473A2/en not_active Application Discontinuation
- 2001-03-01 CN CN 01800414 patent/CN1364302A/en active Pending
- 2001-03-01 EP EP01911216A patent/EP1206783A2/en not_active Withdrawn
- 2001-03-01 MX MXPA01011074A patent/MXPA01011074A/en unknown
- 2001-03-01 PL PL35108901A patent/PL351089A1/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154539B (en) * | 2006-09-29 | 2011-11-16 | 河村电器产业株式会社 | Circuit breaker |
| CN102087935A (en) * | 2009-12-04 | 2011-06-08 | Ls产电株式会社 | Rotation pin correction mechanism for four poles mold cased circuit breaker |
| US8558126B2 (en) | 2009-12-04 | 2013-10-15 | Ls Industrial System Co., Ltd. | Rotation pin correction mechanism for four poles mold cased circuit breaker |
| CN102087935B (en) * | 2009-12-04 | 2013-10-30 | Ls产电株式会社 | Rotation pin correction mechanism for four poles mold cased circuit breaker |
| CN109741996A (en) * | 2019-01-18 | 2019-05-10 | 德力西电气有限公司 | A kind of breaker |
| CN109741996B (en) * | 2019-01-18 | 2024-01-26 | 德力西电气有限公司 | Circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001067473A3 (en) | 2002-03-21 |
| EP1206783A2 (en) | 2002-05-22 |
| MXPA01011074A (en) | 2002-06-04 |
| WO2001067473A2 (en) | 2001-09-13 |
| PL351089A1 (en) | 2003-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |