CN104040669B - Shell molds formula circuit breaker - Google Patents
Shell molds formula circuit breaker Download PDFInfo
- Publication number
- CN104040669B CN104040669B CN201280066561.0A CN201280066561A CN104040669B CN 104040669 B CN104040669 B CN 104040669B CN 201280066561 A CN201280066561 A CN 201280066561A CN 104040669 B CN104040669 B CN 104040669B
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- CN
- China
- Prior art keywords
- circuit breaker
- movable rod
- described multiple
- fixed lever
- control device
- 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.)
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Classifications
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- 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
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- 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
- H01H73/18—Means for extinguishing or suppressing arc
-
- 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
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- 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
- H01H73/06—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
Abstract
The application relates to shell molds formula circuit breaker, and this circuit breaker comprises: the multiple keepers forming fixed contact; Multiple moving member, this multiple moving member is by switch pivotable connecting with multiple keeper or be separated, and this multiple moving member forming surface is to the current collector of fixed contact; Multiple arc control device, it covers the contact portion between multiple keeper and multiple moving member and eliminates the electric arc produced at described contact portion place; The bottom base be integrally formed, it is for remaining in the multiple carriage release levers in pivotal orientation, multiple keeper and multiple arc control device dividually; The top base be integrally formed, itself and bottom base are formed as a pair to seal described multiple carriage release lever, multiple keeper and multiple arc control device dividually.Therefore, prevented the inflow of melted material by the sealing of each phase and insulation when being short-circuited fault, and can prevent insulation property from reducing because of the inflow of melted material, and pass through the shortening of the quenching time occurred because interior pressure increases thus easily guarantee short-circuit capability, and owing to being made structure simply improve assembleability because of parts by vertically connecting.
Description
Technical field
The application relates to a kind of circuit breaker, and relate more specifically to so a kind of circuit breaker, the inside of this circuit breaker can be formed with vertical draw bail with each phase of sealed inside circuit breaker and can prevent the melted material when short trouble occurs from flowing into stop the insulation property in following equipment to reduce in circuit breaker, and this equipment carrys out opening and closing by manual operation or automatic operation and electric current (such as overload current and short circuit current) automatically under blocking-up abnormality.
In the vertical draw bail in inside, the application relates to so a kind of circuit breaker, and this circuit breaker comprises: be fixed to bottom base with formed can the multiple of fixed contact can fixed lever; Be arranged on described can to form multiple movable rod of movable contact on fixed contact; Be arranged on can between fixed contact and movable contact with cover described can multiple arc control device of fixed contact and described movable contact; With treat to be formed as a pair multiple by the so structural bottom base vertically connected can fixed lever.This circuit breaker can seal described multiple movable rod and multiple arc control device dividually.
Background technology
Korean patent application No.10-2004-0079825 discloses a kind of circuit breaker, and more particularly disclose so a kind of circuit breaker, this circuit breaker is set to do not kept trip status by under the state of installing with grafting by the outside interconnecting operation inserting safety device and internal pressure trip gear at circuit breaker.
Comprising the switching device of on-off circuit and switching device be operated to trip positions and be installed in the circuit breaker of the cross bar of outer base, this circuit breaker comprises: pressure dropout instrument, to the direction of the extruding of cross bar, this pressure dropout instrument moves that switching device is operated to trip positions towards extruding cross bar or release; Be fixed to the supporting member of the bottom of circuit breaker; First bar, this first bar provides operating physical force when rotating along other direction by support member support and when circuit breaker is installed on grafting pedestal when rotating along a direction or when circuit breaker departs from grafting pedestal; The spring that elastic force rotates along other direction to make the first bar is provided; Security tool assembly, this security tool assembly is connected with the first bar and is installed into and extrudes described pressure dropout instrument, and by release, described cross bar is discharged to the extruding of pressure dropout instrument when the first bar rotates along a direction, and this security tool assembly comprises the described pressure dropout instrument of extruding to make cross bar to the second bar of trip positions movement and protuberance pressure being passed to pressure dropout instrument from the second bar.This circuit breaker remains that when circuit breaker and outer base disconnect trip status avoids to protect user the risk shocked by electricity in the energized state.
Korean utility model patent application No.20-2004-0035030 discloses a kind of circuit breaker, sending of the arcing gas pressure sent by unexpected route is reduced to minimum and is not needed the optional feature that prevents gas pressure from leaking by this circuit breaker, and wherein said arcing gas produces in one pole switch unit.
This circuit breaker comprise can fixed contact, movable contact, rotatably support movable contact axostylus axostyle, so that the mode of turn the insulation crust of this axostylus axostyle and multiple acyclic type switch unit can be supported.In this circuit breaker, the axostylus axostyle corresponding to cylindrical element comprises: edge cells, and this edge cells is outstanding to axis direction from the circumference of both sides; And axle unit, this axle unit is outstanding to axis direction from the center of both sides, the diameter that lock cell is formed is greater than the diameter of axostylus axostyle, and the height that described lock cell is formed has and leaks relative to axial certain altitude to prevent gas pressure and rotatably support described axostylus axostyle, and supporting groove unit be formed from the center of lock cell towards axial certain altitude and the axle unit rotatably sealing axostylus axostyle to support.
Korean patent application No.10-2004-0079825 discloses a kind of circuit breaker, and this circuit breaker utilizes the gas-pressurized produced by arc phenomenon to have circuit breaker that is compact and high-blockage energy to provide a kind of.
Circuit breaker utilizes the gas-pressurized and compact conformation that are produced by the generation of electric arc and has height and blocks performance.This circuit breaker comprises: the fixture with fixed contact; Rotating moving element, this moving element at one end has the movable contact that can be connected with fixed contact and disconnect, and has pivot at the other end; Shell, this shell is around described fixture and moving element, and limit pressure accumulation space in the side of arc generating position, the gas pressurizeed by the electric arc produced between fixed contact and movable contact when current chopping thus is temporarily retained in the side of arc generating position; Exhaust outlet, this exhaust outlet is formed in the opposite side of arc generating position in this case, thus the gas-pressurized be retained in when current chopping in pressure accumulation space is by being discharged between fixed contact and movable contact.
As mentioned above, conventional circuit breaker can manually operate or electric operating on-off circuit and automatically can block electric current (such as overload current and short circuit current) when there is unusual condition.Melted material flows in circuit breaker in an abnormal situation, thus reduces insulation property.
And this traditional circuit breaker assembles movable contact in side, the parts added thus are needed to seal each phase by sealing and insulating method.Therefore, assembling product can be lowered.
Summary of the invention
Technical problem
The application proposes as providing a kind of circuit breaker, and this circuit breaker prevents the melted material when being short-circuited fault from flowing in circuit breaker by the sealing of each phase and insulation, and prevents insulation property from reducing because of the inflow of melted material.
The application proposes as providing a kind of circuit breaker, and the internal pressure that this circuit breaker is caused by the sealing because of each phase when there is short trouble increases and shortens the quenching time, thus easily guarantees short-circuit capability.
The application proposes as providing a kind of circuit breaker, and this circuit breaker realizes the hermetically-sealed construction of each phase by the vertical integration of bottom base and top base, thus has simple structure and improve assembling product.
Technical solution
In some embodiments, a kind of circuit breaker comprises: multiple can fixed lever, this multiple can fixed lever be constructed to can fixed contact in order to be formed; Multiple movable rod, this multiple movable rod is constructed to by switch rotary multiplely can be connected or to disconnect by fixed lever with described, and this multiple movable rod be constructed in order to formed with described can the opposed movable contact of fixed contact; Multiple arc control device, these multiple arc control device be constructed to cover described multiple can the contact site of fixed lever and described multiple movable rod to eliminate the electric arc produced on described contact site; Bottom base, this bottom base be constructed to hold dividually the described multiple movable rod be all in direction of rotation, described multiple can fixed lever and described multiple arc control device, and this bottom base is constructed to one-body molded; And top base, this top base be constructed to be formed with described bottom base a pair with seal dividually described multiple movable rod, described multiple can fixed lever and described multiple arc control device, and this top base is one-body molded.
In one embodiment, describedly multiplely described bottom base can be fixed to dividually by fixed lever.
In one embodiment, described multiple can fixed lever can also comprise U-bend Qu Suoshu can the shape of fixed contact.
In one embodiment, described multiple movable rod can connect with the movable axis providing the rotating shaft of pivot and be connected with described switch, and described multiple movable rod makes described movable axis move described multiple movable rod is rotated about described rotating shaft by described switch.
In one embodiment, described multiple arc control device can be formed with following structure, this structure stacked clathrate plate with cover described multiple can the upside of fixed contact described in fixed lever.
In one embodiment, described bottom base can comprise described multiple can the fixed cell of fixed lever and the holding unit of described multiple movable rod, and described bottom base can be shaping by curable resin.
In one embodiment, described top base can mark off to seal dividually described multiple can the part of fixed lever, described multiple movable rod and described multiple arc control device, and described top base can be shaping by curable resin.
In one embodiment, described bottom base and top base can vertically be connected.
In one embodiment, described switch can be arranged on the upside of described top base and by described movable axis, described multiple movable rod be rotated.
Technique effect
This circuit breaker and correlation technique can prevent the melted material when being short-circuited fault from flowing in circuit breaker by the sealing of each phase and insulation, and prevent insulation property from reducing because of the inflow of melted material.
This circuit breaker can be increased by the internal pressure caused because of each sealing mutually when there is short trouble with correlation technique and shorten the quenching time, thus easily guarantees short-circuit capability.
This circuit breaker and correlation technique can by realizing the hermetically-sealed construction of each phase to have simple structure and to improve assembling product by bottom base and top base vertical integration.
Accompanying drawing explanation
Fig. 1 is the stereogram of the circuit breaker of the example embodiment illustrated according to described technology.
Fig. 2 is the exploded view of the internal structure of the circuit breaker illustrated in Fig. 1.
Fig. 3 is the stereogram of the assembling form of the internal structure of the circuit breaker illustrated in Fig. 2.
Fig. 4 is the exploded view of the method for operation of the internal structure of the circuit breaker illustrated in Fig. 3.
Fig. 5 launches and the view of the multiple movable rod in Fig. 1 is shown.
Fig. 6 launches and the view of the bottom base in Fig. 1 is shown.
Embodiment
Execution mode described in accompanying drawing and configuration, just to the object illustrated, and do not represent all technical scopes of the present invention, thus it should be understood that can there is various different equivalent and modification when submitting the application to.Although for illustrative purposes, describe preferred implementation of the present disclosure, but those skilled in the art will recognize that, when not departing from as disclosed scope and spirit of the present invention in the following claims, various modification, to supplement and replace be all possible.
Should be understood relatively by with the technical scope of the present invention based on the following fact for illustration of the term in book and claims and word, that is: concept inventor's possibility dependency defining term illustrates the present invention in the best manner.
Term " first " and " second " can be used to refer to various different assembly, but these assemblies can be not limited to above term.These terms will be used to make an assembly be different from another assembly.Such as, when not departing from right of the present disclosure, the first assembly can be referred to as the second assembly and vice versa.
When an assembly is called as " being connected to " or " being attached to " another assembly, the intermediate module that this assembly can be directly connected to or be attached to another assembly or be present between the two.On the contrary, if when an assembly is referred to as " being directly connected to " or " being directly attached to " another assembly, then cannot intermediate module be there is between.
These terms being used in specification are to illustrate for the purpose of embodiment and to be not intended to limit the disclosure.Unless context separately explains, otherwise singular references can comprise plural number statement.In the following description, term " comprises " or " having " will be used to refer to described feature, quantity, step, operation, assembly, parts or its combination, and does not get rid of any one or multiple feature, quantity, step, operation, assembly, parts or its existence of combining or increase.
Unless otherwise defined, otherwise be used in this specification, comprise technical and scientific term and can have the implication that usually can be readily appreciated by one skilled in the art.Such as be limited at these terms in common dictionary, must understood based on the context of correlation technique and need not idealized or exceedingly understand.
Fig. 1 is the stereogram of the circuit breaker of the example embodiment illustrated according to described technology, and Fig. 2 is the exploded view of the internal structure of the circuit breaker illustrated in Fig. 1.
See figures.1.and.2, circuit breaker 100 comprise multiple can fixed lever 110, multiple movable rod 120, multiple arc control device 130, bottom base 140, top base 150 and switch 160.In one embodiment, circuit breaker 100 can operate described multiple movable rod 120 with on-off circuit by the motion of switch 160.
Multiple can fixed lever 110 formed can fixed contact.In one embodiment, multiple can fixed lever 110 can be fixed on bottom base 140 dividually can on the fixed cell 141 of fixed lever.And, multiplely the formation of fixed lever 110 side of fixed contact can can also comprise the shape of U-bend song.
U-bend song can be formed on the contrary multiple can the circuit flow direction of fixed lever 110 and multiple movable rod 120, with increase in an abnormal situation multiple can electric repulsion between fixed lever 110 and multiple movable rod 120.
Fig. 3 is the stereogram of the assembling form of the internal structure of the circuit breaker illustrated in Fig. 2, and Fig. 4 is the exploded view of the method for operation of the internal structure of the circuit breaker illustrated in Fig. 3.
In figs. 3 and 4, the internal structure of circuit breaker 100 comprise multiple can fixed lever 110, multiple movable rod 120, multiple arc control device 130, bottom base 140, top base 150 and switch 160.
Multiple can fixed lever 110 outstanding between bottom base 140 and top base 150.In one embodiment, multiplely can to stretch out through the groove formed by bottom base 140 fixed lever 110.Multiplely can the ledge of fixed lever 110 can be connected with external circuit.
When making switch 160 rotate clockwise, described multiple movable rod 120 is rotated.The rotation of described multiple movable rod 120 is the rotations carried out about rotating shaft 121, rises multiple movable rod 120 to make movable axis 122.
As a result, when making switch 160 rotate clockwise, multiple movable rod 120 is made to rotate clockwise to make multiplely fixed lever 110 and multiple movable rod 120 to disconnect electrical connection.Electric arc may be produced in the case, but multiple arc control device 130 can eliminate electric arc.
On the other hand, when making switch 160 rotate counterclockwise, multiple movable rod 120 is rotated.The rotation of multiple movable rod 120 is the rotations carried out about rotating shaft 121, reduces multiple movable rod 120 to make movable axis 122.
Therefore, when making switch 160 rotate counterclockwise, make multiple movable rod 120 rotate to make multiple can fixed lever 110 and multiple movable rod 120 electrical connection counterclockwise.Electric arc may be produced in the case, but multiple arc control device 130 can eliminate electric arc.
Fig. 5 launches and the view of the multiple movable rod in Fig. 1 is shown.In Fig. 1, Fig. 2 and Fig. 5, multiple movable rod 120 can be made to rotate can be connected or disconnect by fixed lever 110 with multiple by switch 160.
In one embodiment, multiple movable rod 120 can connect with providing the rotating shaft 121 of pivot and can connect with movable axis 122, this movable axis is connected with switch 160, and described multiple movable rod can move this movable axis 122 by switch 160 rotates about rotating shaft 121 to make multiple movable rod 120.
Multiple arc control device 130 cover lid state multiple can the contact site of fixed lever 110 and multiple movable rod 120 to eliminate the electric arc produced on contact site.In one embodiment, multiple arc control device 130 can be formed with such structure, this structure stacked trellis plate with cover multiple can fixed lever 110 can the upside of fixed contact.
Fig. 6 launches and the view of the bottom base in Fig. 1 is shown.In Fig. 1, Fig. 2 and Fig. 6, bottom base 140 can hold dividually multiple can fixed lever 110 and multiple movable rod 120 with one-body molded.In one embodiment, can be formed can the fixed cell 141 of fixed lever and the holding unit 142 of movable rod and can be shaping integratedly and have hard intensity by curable resin for bottom base 140.
Top base 150 can be formed as a pair with bottom base 140 and can seal dividually treat by integrated multiple can fixed lever 110, multiple movable rod 120 and multiple arc control device 130.In one embodiment, top base 150 can mark off to seal dividually multiple can the part of fixed lever 110, multiple movable rod 120 and multiple arc control device 130, and can be shaping integratedly and there is hard intensity by curable resin.
In one embodiment, bottom base 140 and top base 150 can mark off to hold dividually multiple can the part of fixed lever 110, multiple movable rod 120 and multiple arc control device 130, and can vertically to be connected to seal each phase.
Can shorten the quenching time according to the increase of internal pressure by vertically connecting the structure sealing each phase, thus easily guarantee short-circuit capability when short trouble occurs, and structure can simply and improve assembling product.
Switch 160 comprises the movable axis linkage unit 161 connected with movable axis 122.In one embodiment, switch 160 can make movable axis 122 move by movable axis linkage unit 161, rotates about rotating shaft 121 to make described multiple movable rod 120.
Although describe the present invention with reference to its multiple illustrative embodiments, should be appreciated that, it may occur to persons skilled in the art that fall into principle of the present disclosure spirit and scope in many other amendment and execution modes.
Claims (8)
1. a circuit breaker, this circuit breaker comprises:
Multiple can fixed lever, this multiple can fixed lever be constructed to can fixed contact in order to be formed;
Multiple movable rod, this multiple movable rod is constructed to by switch rotary multiplely can be connected or to disconnect by fixed lever with described, and this multiple movable rod be constructed in order to formed with described can the opposed movable contact of fixed contact;
Multiple arc control device, these multiple arc control device be constructed to cover described multiple can the contact site of fixed lever and described multiple movable rod to eliminate the electric arc produced on described contact site;
Bottom base, this bottom base be constructed to hold dividually the described multiple movable rod be all in direction of rotation, described multiple can fixed lever and described multiple arc control device, and this bottom base is constructed to one-body molded; And
Top base, this top base be constructed to be formed with described bottom base a pair with seal dividually described multiple movable rod, described multiple can fixed lever and described multiple arc control device, and this top base is one-body molded,
Wherein, described top base mark off to seal dividually described multiple can the part of fixed lever, described multiple movable rod and described multiple arc control device, and described top base is shaping integratedly by curable resin.
2. circuit breaker according to claim 1, wherein, describedly multiplely can be fixed to described bottom base by fixed lever dividually.
3. circuit breaker according to claim 2, wherein, described multiple can fixed lever also comprise U-bend Qu Suoshu can the shape of fixed contact.
4. circuit breaker according to claim 1, wherein, described multiple movable rod connects with the movable axis providing the rotating shaft of pivot and be connected with described switch, and described multiple movable rod makes described movable axis move described multiple movable rod is rotated about described rotating shaft by described switch.
5. circuit breaker according to claim 1, wherein, described multiple arc control device are formed with following structure, this structure stacked clathrate plate with cover described multiple can the upside of fixed contact described in fixed lever.
6. circuit breaker according to claim 1, wherein, described bottom base comprise described multiple can the fixed cell of fixed lever and the holding unit of described multiple movable rod, and described bottom base is shaping integratedly by curable resin.
7. the circuit breaker according to claim 1 or 6, wherein, described bottom base and described top base are vertically connected.
8. circuit breaker according to claim 1, wherein, described switch is arranged on the upside of described top base and by movable axis, described multiple movable rod is rotated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120003008A KR101276369B1 (en) | 2012-01-10 | 2012-01-10 | Circuit breaker |
| KR10-2012-0003008 | 2012-01-10 | ||
| PCT/KR2012/011260 WO2013105745A1 (en) | 2012-01-10 | 2012-12-21 | Molded case circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104040669A CN104040669A (en) | 2014-09-10 |
| CN104040669B true CN104040669B (en) | 2016-04-27 |
Family
ID=48781657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280066561.0A Active CN104040669B (en) | 2012-01-10 | 2012-12-21 | Shell molds formula circuit breaker |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2804196B1 (en) |
| KR (1) | KR101276369B1 (en) |
| CN (1) | CN104040669B (en) |
| WO (1) | WO2013105745A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988096A (en) * | 2005-12-21 | 2007-06-27 | 三菱电机株式会社 | Circuit breaker |
| CN101162667A (en) * | 2006-10-13 | 2008-04-16 | Abb服务有限公司 | Low-voltage device with reinforced rotating element |
| CN201725745U (en) * | 2010-05-13 | 2011-01-26 | 上海华联低压电器有限公司 | Anti-falling contact mechanism for low-voltage circuit breaker |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19912669A1 (en) * | 1999-03-20 | 2000-09-21 | Abb Research Ltd | Microrelay operating parallel to the substrate |
| DE10129505C1 (en) * | 2001-06-19 | 2002-10-10 | Moeller Gmbh | Multi-pole low voltage switch with dual housing has common switch chamber housing with drive mechanism on upper part with drive element coupled to at least one connecting element |
| KR20040035030A (en) | 2002-10-18 | 2004-04-29 | 라은경 | Oxygen capsul |
| US20040176207A1 (en) | 2003-03-07 | 2004-09-09 | Suydam Christopher J. | Differential pinion having a grooved bore |
| JP4428076B2 (en) * | 2004-02-16 | 2010-03-10 | 富士電機機器制御株式会社 | Circuit breaker |
| KR101027780B1 (en) * | 2006-10-17 | 2011-04-07 | 현대중공업 주식회사 | Arc pressure trip device of the circuit breakers |
| JP2008270136A (en) | 2007-04-25 | 2008-11-06 | Mitsubishi Electric Corp | Circuit breaker |
| KR100919208B1 (en) * | 2007-09-14 | 2009-09-28 | 엘에스산전 주식회사 | Mold cased circuit breaker |
| JP2009295293A (en) * | 2008-06-02 | 2009-12-17 | Mitsubishi Electric Corp | Circuit breaker |
-
2012
- 2012-01-10 KR KR1020120003008A patent/KR101276369B1/en active IP Right Grant
- 2012-12-21 EP EP12864991.0A patent/EP2804196B1/en active Active
- 2012-12-21 CN CN201280066561.0A patent/CN104040669B/en active Active
- 2012-12-21 WO PCT/KR2012/011260 patent/WO2013105745A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988096A (en) * | 2005-12-21 | 2007-06-27 | 三菱电机株式会社 | Circuit breaker |
| CN101162667A (en) * | 2006-10-13 | 2008-04-16 | Abb服务有限公司 | Low-voltage device with reinforced rotating element |
| CN201725745U (en) * | 2010-05-13 | 2011-01-26 | 上海华联低压电器有限公司 | Anti-falling contact mechanism for low-voltage circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013105745A1 (en) | 2013-07-18 |
| EP2804196A4 (en) | 2016-01-06 |
| EP2804196A1 (en) | 2014-11-19 |
| KR101276369B1 (en) | 2013-06-18 |
| EP2804196B1 (en) | 2020-05-13 |
| CN104040669A (en) | 2014-09-10 |
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Effective date of registration: 20170828 Address after: Seoul, South Kerean Patentee after: Modern power and Energy Systems Inc Address before: Ulsan, South Korea Patentee before: Hyundai Heavy Industries Co., Ltd. |
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