CN1777969A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN1777969A CN1777969A CN 200480011017 CN200480011017A CN1777969A CN 1777969 A CN1777969 A CN 1777969A CN 200480011017 CN200480011017 CN 200480011017 CN 200480011017 A CN200480011017 A CN 200480011017A CN 1777969 A CN1777969 A CN 1777969A
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- moving contact
- contact
- circuit breaker
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Abstract
The present invention provides a circuit breaker, comprising a pair of fixed contactors (2) and (3) having fixed contacts (2a) and (3a), a movable contactor (4) having a pair of movable contacts (4a) and capable of bridging these both fixed contacts to each other, an opening/closing mechanism part (10) operating when an over-current flows in the fixed contactors, a crossbar (5) separating the movable contactor from the fixed contactors when the opening/closing mechanism part is operated, a contact pressure spring (7) having one end engaged with the crossbar and the other end engaged with the generally center part of the movable contactor and energizing the movable contactor in the direction of the fixed contactors, and arc-extinguishing chambers (8) installed near both end parts of the movable contactor and extinguishing arcs generated when the movable contactor is separated from the fixed contactors.
Description
Technical field
The present invention is about the circuit breaker of turn-off current when overcurrent flows through circuit, and especially relevant the raising when disconnecting big electric current disconnects the bridge connected circuit breaker that performance is used.
Background technology
The structure of circuit breaker is in the past made in molded case and is placed with: laterally be provided with the pair of metal plate bend to approximate U font, and bend separately be configured to aspectant fixed contact across certain intervals; Be arranged at this fixed contact below and make the moving contact that above-mentioned moving contact can bridge joint; Utilization be arranged on the moving contact side walls can along the switch direction be above-below direction move and keep moving contact, the moving contact keeper of the anti-U font that can move simultaneously along the switch direction of moving contact; The guide part in two outsides that are arranged on this moving contact keeper sidewall is arranged and can slide and keep the U font of moving contact keeper to keep support along the switch direction of moving contact; And between moving contact with keep between the support with the pressing spring of moving contact to one side compression of moving contact keeper, when on fixed contact, flowing through overcurrent, offset the thrust of pressing spring by switching mechanism, limit compression pressing spring, the limit makes the moving contact keeper to maintenance support one side shifting, thereby makes moving contact leave fixed contact.(for example with reference to patent documentation 1)
Patent documentation 1: the spy opens 2003-16902 communique (paragraph 0004-0007, Fig. 3-Fig. 5)
Summary of the invention
The formation of circuit breaker in the past as previously discussed, moving contact and pressing spring are positioned between the maintenance support of the moving contact keeper of anti-U font and U font, even this pressing spring is when compression, because can not be smaller or equal to given size, so the amount of movement in the time of can not increasing moving contact and leave fixed contact can't obtain good disconnection performance.
Also the problem of Cun Zaiing is, the insulation resistance when leaving fixed contact owing to moving contact between arc contact reduces (because of unshielded thing between the contact), and electric arc is difficult to move to arc control device, disconnects mis-behave during open circuit.
The present invention proposes for addressing the above problem, and its purpose is to provide a kind of circuit breaker, and the amount of movement in the time of making moving contact leave fixed contact increases, and simultaneously by the insulation resistance between the contact that increases switching arc, and the disconnection performance when opening a way is improved.
The circuit breaker that the present invention relates to comprises: a pair of subtend setting, and the fixed contact of fixed contact is set respectively; Have the setting of a pair of and above-mentioned fixed contact subtend moving contact, and can make the moving contact of above-mentioned two fixed contact bridge joints; The switching mechanism that moves when on above-mentioned fixed contact, flowing through overcurrent; Combine and make above-mentioned moving contact leave the cross bar of above-mentioned fixed contact when the above-mentioned switch mechanism movement from the approximate centre part of the first side of above-mentioned stationary contact and above-mentioned moving contact; The pressing spring that one end combines with above-mentioned cross bar, the other end and above-mentioned moving contact approximate centre part combine and make above-mentioned moving contact to compress to above-mentioned fixed contact direction; And be divided near the above-mentioned moving contact both ends, extinguish the arc control device of the electric arc that produces when above-mentioned moving contact leaves above-mentioned fixed contact.
The circuit breaker that the present invention relates to constitutes as previously discussed, and pressing spring can not hinder when leaving fixed contact owing to moving contact, so can strengthen the amount of movement of moving contact, the disconnection performance when improving open circuit.
Description of drawings
Fig. 1 is the sectional drawing of the circuit breaker closing line state of expression embodiment of the present invention 1.
Fig. 2 is the sectional drawing of the circuit breaker opens state of expression embodiment of the present invention 1.
The sectional drawing of the open-circuit condition that Fig. 3 causes for the electromagnetic repulsion of circuit breaker of expression embodiment of the present invention 1.
Fig. 4 is the major part stereogram of the circuit breaker of embodiment of the present invention 1.
Fig. 5 is the sectional drawing along the A-A line of Fig. 4.
Fig. 6 is the exploded perspective view of Fig. 4.
Fig. 7 is the stereogram of the change of current electrode of Fig. 1.
Fig. 8 is the amplification stereogram of the intermediate member among Fig. 9.
Fig. 9 constitutes the sectional drawing of usefulness for other embodiment of the circuit breaker of expression embodiment of the present invention 1.
Figure 10 is the sectional drawing of the circuit breaker closing line state of expression embodiment of the present invention 2.
Figure 11 is the amplification stereogram of the formation of the U character form component of expression Figure 10.
Figure 12 is the major part amplification stereogram of the cross bar of expression Figure 10.
Figure 13 is the sectional drawing of the circuit breaker opens state of expression embodiment of the present invention 2.
The sectional drawing of the open-circuit condition that Figure 14 causes for the electromagnetic repulsion of circuit breaker of expression embodiment of the present invention 2.
Label declaration
1 housing, 2,3 fixed contacts, 4 moving contacts, 5 cross bars, 7 pressing spring, 8 arc control device, 9 overcurrent test sections, 10 switching mechanisms, 10a connecting rod, 12,13,14 bearing pins, 15 hide member, 15c the 2nd protuberance, 16 change of current electrodes, 17 intermediate members, 17a bend, 18U character form component, 18a body, 18b, 18C arm, 18d the 1st protuberance.
Embodiment
Below, with reference to accompanying drawing embodiments of the present invention 1 are described.
Fig. 1 is the sectional drawing of the circuit breaker closing line state of expression embodiment of the present invention 1.Fig. 2 is the sectional drawing of the circuit breaker opens state of expression embodiment of the present invention 1.The sectional drawing of the open-circuit condition that Fig. 3 causes for the electromagnetic repulsion of circuit breaker of expression embodiment of the present invention 1.Fig. 4 is the major part stereogram of the circuit breaker of embodiment of the present invention 1.Fig. 5 is the sectional drawing along the A-A line of Fig. 4.Fig. 6 is the exploded perspective view of Fig. 4.Fig. 7 is the stereogram of the change of current electrode of Fig. 1.
In above-mentioned figure, be placed with in the housing 1 of circuit breaker 100: the approximate centre of housing 1 partly separate certain intervals laterally the subtend configuration curve the metallic plate of approximate U font and fixing a pair of fixed contact 2,3 of fixed contact 2a, 3a below separately on the end; Fixing with the moving contact 4a of fixed contact 2a, 3a subtend configuration, below fixed contact with the moving contact 4 of fixed contact 2,3 bridge joints; Have from the first side of stationary contact by combining the cross bar 5 that makes moving contact 4 leave fixed contact 2,3 to the press section 6 of movable contact one side extension and the lower end of press section 6 with the approximate center part of moving contact 4 between the fixed contact; The overcurrent test section 9 of the electric current of fixed contact 2,3 is flow through in detection; Move and with cross bar 5 switching mechanism 10 of pushing of below in figure according to the testing result of overcurrent test section 9; One end combines with above-mentioned cross bar 5 and the approximate center part of the other end and moving contact 4 combines the pressing spring 7 of moving contact 4 to fixed contact 2,3 one side compressions; And be divided near the two ends of moving contact 4, extinguish the arc control device 8 that form with the flat grid 8a of polylith that leave electric arc that fixed contact produced at moving contact 4 at 2,3 o'clock.
The handle 11 manually make moving contact 4 leave fixed contact 2,3 usefulness is installed on the switching mechanism 10, and the action of switching mechanism 10 is passed to the connecting rod 10a of cross bar 5 usefulness, connecting rod 10a and cross bar 5 are located at bearing pin 12 among the elliptical aperture 5a on the cross bar 5 and combination by insertion.Establish bearing pin 13 on the joint portion of the cross bar 5 that combines with an end of pressing spring 7 (upper end among the figure), this bearing pin 13 inserts side from cross bar 5 to the valley 5b that oblique below forms as shown in Figure 5.
In addition, the other end of pressing spring 7 combines with bearing pin 14 on being stuck in moving contact 4.As previously discussed, the lower end of cross bar 5 is provided with the press section 6 of pushing moving contact 4, the placement section 6a that places pressing spring 7 is set on this press section 6, the covering member 15 of the tubular that can form along the slip of cross bar 5 outer peripheral faces is set, hide this placement section 6a and pressing spring 7, be provided with in the lower end of this covering member 15 and will form and the contact-making surface of the fixed part of 4 of moving contacts extends near the extension 15a the moving contact 4a always and keeps the maintaining part 15b of the protuberance 4c of moving contact 4.
In addition, fixing the change of current electrode 16 that makes moving contact 4 leave the electric arc change of current of fixed contact generation in 2,3 o'clock on the bottom surface 1a of the housing that leaves a side 1 of moving contact 4, change of current electrode 16 is provided with the contact-making surface 16a that contacts when moving contact 4 is opened a way as shown in Figure 7; Be located at the two ends of moving contact 4 and make and be inserted through hole 16b what moving contact 4 left that arc horn 4b that the electric arc that produces between fixed contact fixed contact 2a, 3a and moving contact 4a moves to arc control device 8 can be inserted through at 2,3 o'clock; And the parallel surface 16c parallel with the plane approximation of grid 8a made at two ends.
Below, utilize Fig. 1 and Fig. 2 that the circuit breaker action of execution mode 1 is described.
(1) as shown in Figure 1, under closed circuit state, the moving contact 4a of moving contact 4 contacts with fixed contact 2a, the 3a of fixed contact 2,3, utilizes pressing spring 7 simultaneously, makes moving contact 4 push fixed contact 2,3.
(2) when flowing through overcurrent on the fixed contact 2,3, overcurrent test section 9 detects this electric current, according to this testing result, and switching mechanism 10 actions, connecting rod 10a moves to the arrow B direction of Fig. 1.
(3) moving contact 4 is pushed in the lower end of the press section 6 of cross bar 5, and as shown in Figure 2, move moving contact 4 below in figure, leaves fixed contact 2,3.
(4) moving contact 4 the arc horn 4b at two ends be inserted through change of current electrode 16 be inserted through hole 16b after, move to the bottom surface 1a of housing 1 always.
(5) produce electric arc between fixed contact 2a, 3a and moving contact 4a, but this electric arc is moving the while from arc horn 4b to arc control device 8, the change of current disconnects the overcurrent that flows on the fixed contact 2,3 to change of current electrode 16 and current limliting.
The circuit breaker of present embodiment adopts above formation, does not hinder owing to moving contact 4 leaves 2,3 o'clock pressing spring 7 of fixed contact, so can strengthen the amount of movement of moving contact 4.In addition, owing between the contact of switching arc, disposing covering member 15, thus the insulation resistance increase, its result, electric arc can improve the disconnection performance when opening a way easily to arc control device 8 one side shiftings.
Have, because pressing spring 7 is positioned over the placement section 6a of cross bar 5, simultaneously, covered member 15 hides again, so pressing spring 7 can not be exposed in the electric arc, pressing spring 7 can not burn out.
Have, connecting rod 10a and cross bar 5 are formed at bearing pin 12 combinations among the elliptical aperture 5a of cross bar 5 by insertion again, because switching mechanism 10 and cross bar 5 do that the combination of the degree of freedom is arranged, so can effectively the actuating force of switching mechanism 10 be passed to cross bar 5.Have, owing to establish valley 5b on cross bar 5, make the bearing pin 13 that combines with an end of pressing spring 7 insert, so bearing pin 13 is contained on the cross bar 5 easily, while bearing pin 13 can positively be located the position that remains on regulation.
Have again, be inserted through hole 16b because of what on change of current electrode 16, form the arc horn 4b be inserted through moving contact 4, so can strengthen the amount of movement of moving contact 4.
Have again, the parallel surface 16c with the parallel formation of plane approximation of grid 8a be set on change of current electrode 16, thus electric arc from arc horn 4b when arc control device 8 move, can successfully carry out to 16 changes of current of change of current electrode.
Below, utilize the electromagnetic repulsion power that acts on 4 of fixed contact 2,3 and moving contacts, the action that moving contact 4 does not wait the action of overcurrent test section 9 and switching mechanism 10 just to leave when utilizing Fig. 1 and Fig. 3 explanation on fixed contact 2,3, to flow through big electric current as the short circuit current.(1) when the big electric current that on fixed contact 2,3, flows through as the short circuit current, flow through the electric current of fixed contact 2 and flow through the electric current of moving contact 4 and the electric current that flows through the electric current of fixed contact 3 and flow through moving contact 4 respectively in the other direction, moving contact 4 is produced the repulsive force of the arrow C direction of Fig. 1.
(2) utilize above-mentioned repulsive force, moving contact 4 is offset the thrust of pressing spring 7, and the outer peripheral face of the press section 6 of the inner peripheral surface edge cross bar 5 of covering member 15 slides, and move the below among the Bian Xiangtu, and moving contact 4 leaves fixed contact 2,3.
(3) though produce electric arc between fixed contact 2a, 3a and moving contact 4a, this electric arc moves to arc control device 8 from arc horn 4b, and simultaneously, the change of current disconnects the big electric current that flows on the fixed contact 2,3 to change of current electrode 16 and current limliting.
In the above action, because the outer peripheral face of the press section 6 of the inner peripheral surface edge cross bar 5 of covering member 15 slides, move on the limit, so moving contact 4 steadily leaves fixed contact 2,3.
Again because of hide member 15 have just become and moving contact 4 between the contact-making surface of fixed part extend near the moving contact 4a extension 15a always, so electric arc, can improve the disconnection performance when opening a way easily to arc control device 8 one side shiftings.
Also have in the above-mentioned execution mode 1, be to be illustrated to hiding the member 15 direct formations that are connected with moving contact 4 and keep, but if intermediate member 17 its bend 17a that for example form with brass sheet that will be as shown in Figure 8 as shown in Figure 9, and to insert between the extension 15a and moving contact 4 that hides member 15 to the sagging form in the both sides of moving contact 4, then the heat energy of moving contact 4 and fixed contact fashionable generation in 2,3 fens prevents to pass to the covering member 15 that for example forms with thermoplastic resin.
Below, with reference to description of drawings embodiment of the present invention 2.
Figure 10 is the sectional drawing of the circuit breaker closing line state of expression embodiment of the present invention 2.Figure 11 is the separately amplification stereogram of retaining member of the U character form component formation of the major part of expression formation example 2.Figure 12 is the major part amplification stereogram of the cross bar of expression Figure 10.Figure 13 is the sectional drawing of the circuit breaker opens state of expression embodiment of the present invention 2.The sectional drawing of the open-circuit condition that Figure 14 causes for the electromagnetic repulsion of circuit breaker of expression embodiment of the present invention 2.
Among the above-mentioned figure, for the part mark same numeral identical or suitable with Fig. 1～Fig. 7, it illustrates omission.With Fig. 1～Fig. 7 difference as described in detail below, promptly form protuberance at the inner surface that hides member 15, simultaneously will be by separating in the placement section of pressing spring 7 of press section 6 that retaining member be placed on cross bar 5 that the U character form component constitutes with the form that is provided with in the lump with pressing spring 7, the protuberance that is formed at the protuberance of U character form component and hides in the member 15 is crossed mobilely when moving contact 4 leaves mutually because of electromagnetic repulsion power, can keep the separated position of moving contact.
Figure 11 is placed on the stereogram of the U character form component 18 in the placement section of pressing spring 7 of press section 6 of cross bar 5 among Figure 10 for expression.As shown in the drawing, U character form component 18 will curve the U font by the body 18a that elastic component forms, and the outer surface at two arm 18b, 18c forms the 1st protuberance 18d simultaneously.
In addition, at the inner surface that hides member 15 as shown in figure 12, form, make the outer surface of two arm 18b, 18c of itself and above-mentioned U character form component 18 face-to-face to the 2nd projecting inward protuberance 15c.
The 2nd protuberance 15c is located near the upper end that hides member 15 as shown in figure 10, under the state of fixed contact 2a, 3a and moving contact 4a closure, is positioned at the top of the 1st protuberance 18d of U character form component, and is positioned near the upper end of press section 6 of cross bar 5.
In such formation, flow through big electric current in circuit, overcurrent test section 9 detects it and make switching mechanism 10 actions, and moving contact 4 leaves under the situation of fixed contact 2,3, with Fig. 2 illustrated the same, cross bar 5 and press section 6 move down, and lower moving contact 4 is pressed in the lower end of press section 6, its result, hiding member 15 also is pressed, become state as shown in figure 13, the relativeness state as shown in Figure 10 that U character form component 18 and covering member are 15 is almost constant, until moving contact 4 separately.
But on fixed contact 2,3 during the such big electric current of short circuit current flow, also as Fig. 3 illustrated, utilize the electromagnetic repulsion power of effect between fixed contact 2,3 and the moving contact 4, moving contact 4 does not wait overcurrent test section 9 and switching mechanism 10 actions just to separate, become state as shown in figure 14, existing action to this moment describes.
(1) when the such big electric current of short circuit current flow on the fixed contact 2,3, flow through the electric current of fixed contact 2 and flow through the electric current of moving contact 4 and flow through the electric current of fixed contact 3 and flow through the electric current of moving contact 4, so the electromagnetic repulsion power that moving contact 4 is produced according to the direction shown in the arrow E among Figure 14 owing to be respectively in the other direction.
(2) utilize above-mentioned electromagnetic repulsion power, moving contact 4 is offset the thrust of pressing spring 7, and the outer peripheral face of the press section 6 of the inner peripheral surface edge cross bar 5 of covering member 15 slides, and the direction shown in the edge arrow E moves, and moving contact 4 leaves fixed contact 2,3.Utilize and hide moving of member 15, the 2nd protuberance 15c that is formed at its inner surface also moves along the arrow E direction, but because of not action of cross bar 5, it is motionless that U character form component 18 is fixed on the position of Figure 10, so combine with the form of the upper surface collision of the 1st protuberance 18d of U character form component 18 with the 2nd protuberance 15c that hides member 15.
If moving contact 4 moves to the arrow E direction of Figure 14 again, then the 2nd protuberance 15c crosses the 1st protuberance 18d of U character form component 18, make two arm 18b, the inside deflection of 18c of U character form component 18, thereby the 2nd protuberance 15c crosses the 1st protuberance 18d, as shown in figure 14, be located in its below.
(3) after this, overcurrent test section 9 detects overcurrent, according to this testing result, switching mechanism 10 actions, the arrow G direction of connecting rod 10a in Figure 14 moves, moving contact 4 contacts and pushes with the inner bottom surface 1a of housing 1, so and above-mentioned opposite power is applied on the 1st protuberance 18d of the 2nd protuberance 15c that hides member 15 and U character form component 18, the limit makes the two arm 18b and the inside deflection of 18c of U character form component 18, the limit begins the 2nd protuberance 15c that the 1st protuberance 18d crosses covering member 15 from the state of Figure 14, the 1st protuberance 18d of U character form component 18 gets back to original state to more moving the below than the 2nd protuberance 15c.In this course of action, because switching mechanism 10 actions, so moving contact 4 can not return fixed contact 2,3 one sides.
In above action, utilize electromagnetic repulsion power after moving contact 4 leaves fixed contact 2,3, the little zone of electric current before just disconnecting end, want to make moving contact 4 to return fixed contact 2,3 one sides, but owing to hide the 2nd protuberance 15c of member 15 and the 1st tab of U character form component 18, prevent to return,, can positively disconnect so moving contact 4 can not contact with fixed contact 2,3 again.
Also have, in the above-mentioned action, U character form component 18 also can be provided with pressing spring 7 in hiding member 15 symmetrically together, is positioned at its both sides, in addition, also can be on each arm 18b, 18c left and right symmetrically the 1st protuberance 18d of a plurality of U character form components 18 is set respectively.In this case, can improve above-mentioned disconnection performance more.
Claims (12)
1. a circuit breaker is characterized in that, comprises
A pair of subtend setting, and the fixed contact of fixed contact is set respectively; Have the setting of a pair of and described fixed contact subtend moving contact, and can make the moving contact of described two fixed contact bridge joints; The switching mechanism that moves when on described fixed contact, flowing through overcurrent; Combine and make described moving contact leave the cross bar of fixed contact when the described switch mechanism movement from the approximate centre part of the first side of described stationary contact and described moving contact; The pressing spring that one end combines with described cross bar, the other end and described moving contact approximate centre part combine and make described moving contact to compress to described fixed contact direction; And be divided near the described moving contact both ends, extinguish the arc control device of the electric arc that produces when described moving contact leaves described fixed contact.
2. circuit breaker as claimed in claim 1 is characterized in that,
Valley forming on the described cross bar from the side below tiltedly inserts bearing pin described valley simultaneously, as with the joint portion of an end of described pressing spring.
3. circuit breaker as claimed in claim 1 is characterized in that,
The first side of the oriented described movable contact of described cross bar extend and with the press section that the approximate centre position of moving contact combine and pushes, the placement section of the described pressing spring of placement is set in this press section.
4. circuit breaker as claimed in claim 3 is characterized in that,
Have the outer peripheral face that covers described press section and can slide, the covering member of tubular that while and described moving contact are fixed.
5. circuit breaker as claimed in claim 4 is characterized in that,
The fixed part of described covering member itself and described moving contact extend always be set to described moving contact near.
6. circuit breaker as claimed in claim 4 is characterized in that,
Intermediate member is contained on the fixed part between described covering member and moving contact.
7. circuit breaker as claimed in claim 4 is characterized in that,
Be provided with and make described moving contact remain on the separately retaining member of separated position when described moving contact separately moves because of electromagnetic repulsion power.
8. circuit breaker as claimed in claim 7 is characterized in that,
The described U character form component of making the U font and the 1st protuberance being arranged on the outer surface of two arms that constitutes that separates retaining member, in described press section, be provided with together, make the 2nd tab that described the 1st protuberance can and be formed at described covering inner surface of component simultaneously with described pressing spring.
9. circuit breaker as claimed in claim 1 is characterized in that,
Have with the connecting rod of described switching mechanism interlock and be located at elliptical aperture on the described cross bar, by inserting the bearing pin of described elliptical aperture, described connecting rod and cross bar combination.
10. circuit breaker as claimed in claim 1 is characterized in that,
In described moving contact and opposite side fixed contact contact, the change of current electrode of the electric arc change of current that produces when making described moving contact leave described fixed contact is set.
11. circuit breaker as claimed in claim 10 is characterized in that,
Described change of current electrode has can allow the hole that is inserted through that the arc horn that is formed at described moving contact two ends is inserted through when described moving contact leaves described fixed contact.
12. circuit breaker as claimed in claim 10 is characterized in that,
Be provided with at the two ends of described change of current electrode and the grille plane of the described arc control device parallel surface of parallel formation almost.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003374172 | 2003-11-04 | ||
| JP374172/2003 | 2003-11-04 | ||
| JP208640/2004 | 2004-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1777969A true CN1777969A (en) | 2006-05-24 |
| CN100481297C CN100481297C (en) | 2009-04-22 |
Family
ID=36766691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800110171A Expired - Fee Related CN100481297C (en) | 2003-11-04 | 2004-10-27 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100481297C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115250A (en) * | 2011-09-30 | 2014-10-22 | 罗杰.W.福克纳 | Commutating circuit breaker |
| CN105027251A (en) * | 2013-03-29 | 2015-11-04 | 松下知识产权经营株式会社 | Contact device and circuit breaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012156044A (en) * | 2011-01-27 | 2012-08-16 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6252480B1 (en) * | 2000-02-18 | 2001-06-26 | Siemens Energy & Automation, Inc. | Moving contact and crossbar assembly for a molded case circuit breaker |
-
2004
- 2004-10-27 CN CNB2004800110171A patent/CN100481297C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115250A (en) * | 2011-09-30 | 2014-10-22 | 罗杰.W.福克纳 | Commutating circuit breaker |
| CN104115250B (en) * | 2011-09-30 | 2017-11-03 | 阿雷沃国际公司 | Change of current breaker |
| CN105027251A (en) * | 2013-03-29 | 2015-11-04 | 松下知识产权经营株式会社 | Contact device and circuit breaker |
| CN105027251B (en) * | 2013-03-29 | 2017-09-26 | 松下知识产权经营株式会社 | Contact making device and circuit-breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100481297C (en) | 2009-04-22 |
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| C06 | Publication | ||
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Granted publication date: 20090422 Termination date: 20191027 |
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| CF01 | Termination of patent right due to non-payment of annual fee |