CN102110557B - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN102110557B CN102110557B CN 201010268557 CN201010268557A CN102110557B CN 102110557 B CN102110557 B CN 102110557B CN 201010268557 CN201010268557 CN 201010268557 CN 201010268557 A CN201010268557 A CN 201010268557A CN 102110557 B CN102110557 B CN 102110557B
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- Prior art keywords
- intermediate base
- circuit
- over current
- current trip
- switching mechanism
- Prior art date
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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
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0235—Contacts and the arc extinguishing space inside individual separate cases, which are positioned inside the housing of the 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
Abstract
Provided is a circuit breaker that includes a thermal electromagnetic type overcurrent release device, adapted for automatic assembly, which prevents a metallic melt produced by a short circuit interruption from adhering to an opening and closing mechanism or the overcurrent release device. The circuit breaker comprises: a middle base accommodating an opening and closing mechanism, and an overcurrent release device that detects an overcurrent, to cause the opening and closing mechanism to move pivotally; a base accommodating a circuit interrupting mechanism including an arc extinguisher that interrupts an arc generated between a movable contact arm provided to a crossbar that moves pivotally in an interlocking relation with the opening and closing mechanism and a stationary contact arm that repeats making contact with and moving apart from the movable contact arm; and a cover body covering the middle base, the base and components accommodated within the middle housing; wherein the circuit interrupting mechanism is covered by the middle base, and the overcurrent release device is accommodated in the middle base by press-fitting the release device.
Description
Technical field
The present invention relates to the circuit-breakers such as a kind of Inturruptor for sub-line or residual current circuit breaker, in detail, relate to a kind of structure over current trip etc. is configured in the mode that is suitable for automatic Composition.
Background technology
As circuit-breaker, not only have operating grip by this circuit-breaker is had to be operated and by the function of circuit on/off, be switching function, also bearing following vital task, that is, circuit is being disconnected to prevent in advance causing electric wire or load equipment to burn because flowing through overcurrent.Detection for this overcurrent, well-known rough classification is thermal type, electromagnetic type, the such variety of way of electronic type, in the mode of electronic type therein, the resulting signal of current transformer utilization carried in this circuit-breaker by the CPU by built-in carries out calculation process, thereby is detected.Therefore, still as is well known, by adding from outside setting signal to CPU, can easily change the rated current of this electronic circuit breaker, especially, on for example, basis with load equipment (starting current of motor) coordination, exploit one's power.In addition, over current trip in the case carries out so-called blocking usually, therefore, has advantages of the automatic Composition (for example,, with reference to patent documentation 1) that can carry out with comparalive ease this circuit-breaker.
On the other hand, because the mode of this electronic type need to be with the electronic circuit headed by above-mentioned current transformer and CPU, so can't avoid price increase, especially, in AF (abbreviation of ampere framework, the maximum that can switch on this circuit-breaker means) less (specifically, 63AF125AF etc.) goods, and the price difference between the moving or hot moving electromagnetic type of heat is very large, this situation is also one of extensive universal reason of the moving electromagnetic type circuit-breaker of heat simultaneously.In addition, for over current trip in the case, in the situation that consider by heat and cause that bimetal leaf is crooked and by electromagnetic force, movable core is moved, expect that this over current trip is firmly fastened at circuit, forms on the framework of this circuit-breaker (for example,, with reference to patent documentation 2).
In addition, previously described " detection of overcurrent ", because being detects, so refer to that smaller electric current (certainly, larger with respect to rated current), but except overcurrent, also have the large electric currents such as short circuit current, such overcurrent opens circuit, is that short interruption is also undertaken by circuit-breaker.For this short interruption, there is larger breaking capability for increase that how to be accompanied by power supply capacity etc., each company is all carrying out keen competition naturally, especially, at the circuit-breaker for home-use grade, because its profile is less, so raising for breaking capability, importantly how by short-circuit current limitation for less, that is, how to improve metering function.As a kind of method that improves this metering function, can enumerate: the movement of the movable core that the electromagnetic force produced by will be switched on by short circuit current the time causes directly is passed to movable contact, accelerates thus the method for its opening speed.In addition, also a kind of so-called electric arc of likewise known moves the mode of opening circuit, and it promptly guides to arc-extinction device (for example,, with reference to patent documentation 3) by the electric arc produced between two contacts.
Patent documentation 1: Japanese kokai publication hei 9-270225 communique (the 3rd page of right hurdle the 26th row～the 4th page of left hurdle the 4th row, Fig. 3 and Fig. 8)
Patent documentation 2: TOHKEMY 2006-236798 communique (the 4th page of the 18th row～the 24th row, Fig. 1 and Fig. 2)
Patent documentation 3: the real clear 56-135649 communique (the 12nd page of the 19th row～14th page the 11st row, Fig. 5～Fig. 7) of opening of Japan
Summary of the invention
In the circuit-breaker of patent documentation 3, the so-called separating part between arc-extinction device and actuating mechanism section is only the electric arc movable plate of (on Fig. 3 paper) upside, and its air-tightness is not very high.Therefore, be accompanied by short interruption and the metal melt that produces is adhered to and reduced and become problem by the insulation that the inflow of arcing gas causes to switching mechanism section etc.On the other hand, although, because short-circuit sensor and bimetal means are arranged on the carriage that forms actuating mechanism section, realize the stabilisation of its characteristic, do not consider after all automatic Composition, obviously become the obstacle of cost.In addition, also be envisioned that the processing while adjusting bad and wrong assembling also has difficulties.
In bubble-tight situation when only considering short interruption, by the circuit-breaker of patent documentation 2, one of this solution is shown.But, in the case, due to needs middle parts lid, to being covered between over current trip and arc-extinction device, so must have to carry out fasteningly on the matrix of bottom by being screwed on, still be difficult to carry out automatic Composition.So, for only for automatic Composition, over current trip being formed to this mode of electronic type, as noted above is real countermeasure hardly.
The present invention proposes in order to solve above-mentioned problem, its purpose is to obtain a kind of circuit-breaker, it adopts the over current trip of the moving electromagnetic type of heat and is suitable for automatic Composition, and, prevent from being accompanied by short interruption and the metal melt that produces is adhered to switching mechanism section and this over current trip.
Circuit-breaker involved in the present invention has: intermediate base, it accommodates switching mechanism section and over current trip, and this switching mechanism section has operating grip, is configured between frame plate respect to one another, this over current trip is detected overcurrent, and described switching mechanism section is rotated; Pedestal, it is accommodated and comprises arc-extinction device in the interior section that opens circuit, the electric arc that this arc-extinction device will produce between movable contact and the fixed contact therefor that repeatedly contacts/separate with this movable contact blocks, and this movable contact is arranged on the cross bar rotated with described switching mechanism section's interlock; And lid, it covers described intermediate base, pedestal and is housed in each parts in described intermediate base, the described section that opens circuit is covered by described intermediate base, and described over current trip is pressed into and carries out fastening the realization to accommodating by utilization of this intermediate base.
The effect of invention
The present invention as described above, can provide a kind of circuit-breaker of the high breaking capacity that manufacturing cost is reduced.
The accompanying drawing explanation
Fig. 1 means the outward appearance oblique view of the circuit-breaker of embodiments of the present invention 1.
Fig. 2 means the figure that the parts that carry out to the intermediate base of Fig. 1 are accommodated.
Fig. 3 means the figure of the over current trip in Fig. 1.
Fig. 4 means vertical view and the profile of the intermediate base in Fig. 1.
Fig. 5 means vertical view and the profile of the pedestal in Fig. 1.
Fig. 6 is the profile of the pedestal in intermediate base and Fig. 1 when chimeric.
Fig. 7 means the figure of the section that opens circuit in Fig. 1.
Embodiment
Execution mode 1
Fig. 1 is the oblique view of circuit-breaker under tripped condition in embodiments of the present invention 1, (a) is the figure that outward appearance is shown, and is (b) that the figure that decomposites respectively lid, intermediate base, pedestal from (a) is shown.In addition, Fig. 2 means the figure that the parts that carry out to the intermediate base in Fig. 1 (b) are accommodated, and Fig. 3 means the over current trip of the one pole in Fig. 2 and the figure of yoke.In addition, Fig. 4 and Fig. 5 illustrate respectively intermediate base, pedestal, (a) be with Fig. 1 (b) in the corresponding vertical view of X view, (b) be profile, Fig. 6 makes intermediate base and the pedestal profile (corresponding with Fig. 4 and Fig. 5 (b)) when chimeric.In addition, Fig. 7 means the figure that the parts that carry out to the pedestal in Fig. 1 (b) are accommodated.
In Fig. 1, the insulation framework of the circuit-breaker 101 that 3 utmost points are used consists of lid 1, intermediate base 2 and pedestal 3, wherein, in intermediate base 2, accommodate respectively switching mechanism section 51 with operating grip 4 and corresponding with number of poles (in the case, be 3) over current trip 52, accommodate the arc-extinction device corresponding with number of poles 53 in pedestal 3.Wherein, for intermediate base 2, the internal pressure caused for the electric arc that prevents from producing when opening circuit rises and the damage that causes, makes the recess 3a3a of the side plate 2a2a of intermediate base 2 and pedestal 3 chimeric.Therefore, this side plate 2a2a becomes the part of insulation framework.In addition, operating grip 4 protrudes with fenestra 1a by the handle from lid 1, and can be to connecting direction (on Fig. 1 paper, clockwise direction) or disconnect direction (on Fig. 1 paper, counterclockwise) operation this point, and, according to the position relationship of arc-extinction device 53,5 is that power supply side terminal, 6 is the load side terminal this point, is all well-known.
Shown in Figure 2 as the yoke 7 of wanting section of the present invention, it is parts that form over current trip 52, in addition, that is, the over current trip 52 except yoke 7, switching mechanism section 51 and arc-extinction device 53 (with reference to Fig. 1 (b)) are all well-known.; repeatedly contacted/separated between fixed contact therefor 9 and movable contact 13; utilize arc-extinction device 53; the electric arc in will contacting at this/separate, particularly produced between fixed contact 8 and moving contact 11 by separation blocks; wherein; fixed contact therefor 9 is fastened on yoke 7; at one end there is fixed contact 8; movable contact 13 is connected with power supply side terminal 5 via pliability copper stranded conductor 10; at one end there is moving contact 11, kept by the cross bar 12 rotated with 51 interlocks of switching mechanism section.
Switching mechanism section 51 utilizes following parts to carry out so-called blocking: handle arm 15, and its earth's axis free to rotate is supported on the framework 14 formed by relative pair of frames plate 14A14B; Operating grip 4, it is fastened on this handle arm 15; Trip(ping) bar 16 and lock part 17, their earth's axis free to rotate are supported on framework 14, by the action of over current trip 52 described later, are rotated; And cross bar 12, itself and the elbow-bar mechanism interlock that does not mark label of being moved by the rotation of this lock part 17, the identical earth's axis is supported on framework 14 and is rotated.In addition, frame plate 14A (14B) has foot 14A114A2 in the front and back of power source loads direction, by these foots 14A114A2 is inserted and is arranged on the patchhole 2b (with reference to Fig. 4 (a)) on intermediate base 2, thereby switching mechanism section 51 is fastened on the assigned position in the insulation framework.Here, for the detailed content of elbow-bar mechanism,, the manual operation of circuit-breaker 101 (is connected～is disconnected, disconnect～connect) and trip operation and tripping operation after reset operation, owing to not being the section that wants of the present invention, so omit further, describe in detail.
As shown in Figure 3, over current trip 52 is in the situation that, from the current path observation, consist of following parts: fixed contact therefor 9, and it at one end has fixed contact 8; Coil 18,9 electrical connections of itself and this fixed contact therefor (below, referred to as connecting); Relay terminal 19, it is connected with this coil 18; Bimetal leaf 20, it is connected with this relay terminal 19; Pliability copper stranded conductor 21 (also with reference to Fig. 2), its with this bimetal leaf 20 for obtain expecting that the optional position of amount of bow is connected by its heating; And load side terminal 6, it is connected with this pliability copper stranded conductor 21, in addition, the electromagnetic force produced in order to take full advantage of coil 18, over current trip 52 also consists of following parts: fixed iron core 22, it is fastened on fixed contact therefor 9 together with yoke 7; Insulated tube 23, it covers this fixed iron core 22, and is positioned on the internal diameter of coil 18; And movable core 24, it is positioned on the internal diameter of this insulated tube 23, resists not shown preloading spring and moves.; this over current trip 52 is the moving electromagnetic type of heat; form the moving section of heat by relay terminal 19, bimetal leaf 20 and pliability copper stranded conductor 21, by yoke 7, coil 18, fixed iron core 22, insulated tube 23, preloading spring and movable core 24, form electromagnetism section.
The action of this over current trip 52 is as noted above is well-known,, in the situation that overload current flows through to be more than or equal to the stipulated time, by making bimetal leaf 20 to right-hand bending on paper, thereby adjust screw division 20a, trip(ping) bar 16 is rotated, rotate by this, rotate with the lock part 17 of trip(ping) bar 16 butts, switching mechanism section 51 tripping operations thus, movable contact 13 separates with fixed contact therefor 9.On the other hand, in the situation that short circuit current flow produces larger magnetic force by coil 18, make the spring force of movable core 24 opposing preloading springs to right-hand movement, directly make thus lock part 17 rotate, make in the same manner 51 tripping operations of switching mechanism section.In addition, over current trip 52 is accommodated to the insulation framework, by load side terminal 6 is inserted to pedestal 3, yoke 7 and relay terminal 19 insertion intermediate bases 2 are carried out, wherein, because yoke 7 is the sections that want of the present invention to the insertion of intermediate base 2, so following, at length describe.
Above-mentioned relay terminal 19 and load side terminal 6 and power supply side terminal 5, this reason of relay point according to current path, only in each patchhole 2c (relay terminal 19) shown in Fig. 4 and Fig. 5, insertion groove 3b (load side terminal 6), insertion groove 3c (power supply side terminal 5), insert, for two terminals 56, do not need to be firmly fastened to very much especially.On the other hand, for yoke 7, in view of there being movable core 24 these movable member this point, and exist (via fixed contact therefor 9, coil 18, relay terminal 19) to carry out in the situation of bimetal leaf 20 this point of mechanical link, because the movement (bending) of above-mentioned movable core 24 and bimetal leaf 20 affects the current characteristics of this circuit-breaker 101, thus by the insertion of yoke 7, undertaken fastening must be firmly.
Therefore, in the present invention, the 2 bend 7a of place are set on yoke 7, and, run through on intermediate base 2 the second hole 2e chimeric with this bend 7a is set.If record and narrate in detail the size relationship of above-mentioned bend 7a and the second hole 2e, with respect to comprising bend 7a at interior two ends size A, make the inside dimension B slightly narrow (A>B) between the partition wall of intermediate base 2 at the position that this yoke 7 inserts.On the other hand, make the inside dimension C identical with A (A=C) between the partition wall at the second 2e position, hole, and, make the zone of inside dimension C corresponding with the surface area D of bend 7a.By such setting, when yoke 7 is inserted, utilize thermoplastic resin molded partition wall to open slightly laterally, simultaneously, if bend 7a arrives inside dimension C, the partition wall of opening laterally restores, and stops bend 7a activity.That is, once over current trip 52 insert, at least one side extremely on that over current trip 52 is obtained is fastening, be difficult to thus extract, to this, in other words, mean to be firmly fastened to this situation on the position of regulation, and contribute to the stabilisation of current characteristics.
As noted above, do not need over current trip 52 is utilized such as screw fastenings etc. and is fastened on the insulation framework, can be clear and definite according to Fig. 1 (a) and Fig. 2, because the stacked circuit-breaker 101 that forms of what is called is carried out by each parts in the top by from paper, so can realize automatic Composition, can suppress its manufacturing cost.In addition, for the second hole 2e, in the mill between during the mould of pedestal 2, run through as " hole " as literal meaning, but might not be defined in this mode, only otherwise make that yoke 7 is movable to be got final product, " hole " can be also inaccessible.
But, in the situation that consider the cost of manufacture of mould, preferably as " hole ", form and run through.In addition, in the bottom of the intermediate base 2 at the position of fastening this over current trip 52, as shown in Fig. 1 (b), mounting has arc-extinction device 53.On the other hand, although the second hole 2e is bent the 7a of section obturation to a certain extent, do not entirely shut.Therefore, estimate to exist the arcing gas produced by arc-extinction device 53 when short interruption to arrive switching mechanism section 51 these situations by the second hole 2e, not preferred.Therefore, in present embodiment 1, comprise the second 2e position, hole interior, there is lug boss 3e (with reference to Fig. 5 (b)) on the power supply-load direction of pedestal 3.Thus, can be clear and definite according to Fig. 6, when making intermediate base 2 and pedestal 3 chimeric, utilize lug boss 3e that the second hole 2e is entirely shut, therefore, can realize especially the raising of opening performance.And, this lug boss 3e is for the insulation of interpolar, particularly guarantee that creepage distance sets in advance, therefore, when the raising of the stabilisation that realizes previously described automatic Composition and characteristic and opening performance, can not follow parts to append such cost and rise.
In addition, about the raising of this opening performance, in present embodiment 1, adopt (recording and narrating in the background technology part) electric arc to move the mode of opening circuit.This electric arc moves the mode of opening circuit, and the electric arc produced while utilizing electromagnetic repulsive force by short interruption guides to arc-extinction device 53, Yi Bian guarantee the current path formed by this electric arc, Yi Bian finally utilize this arc-extinction device 53 that electric arc is blocked.Specifically, the electric arc produced between two contacts 9,13, its fixed contact therefor 9 side direction yokes 7 shift, and its movable contact 13 sides shift to arc channel 25 (with reference to Fig. 7).By this transfer, current path become arc electrodes 53a～yoke 7～coil 18 of power supply side terminal 5～arc channel 25～arc-extinction device 53～...～load side terminal 6, but now, as shown in Figure 7, the repulsive force in the magnetic field that utilizes current direction (arrow E) by arc channel 25 and arc electrodes 53a to produce for different directions towards the current direction (arrow F) of upside from downside on paper, and by arrow F and yoke 7 towards and fixed contact therefor 9 between the current direction (arrow G of fastening point, with reference to Fig. 3) repulsive force in the magnetic field that also produces for different directions, thus electric arc is guided to arc-extinction device 53.Directed electric arc is blocked, and its result, produce large electric current together with this short circuit and promptly be cut off.
Can be clear and definite according to above explanation, need to make yoke 7 expose with respect to fixed contact therefor 9 and arc electrodes 53a, this point realizes by following mode.; on the bottom surface of the fastening over current trip 52 of intermediate base 2; run through the first hole 2d is set; by fastening over current trip 52; thereby make this first hole 2d by yoke 7 obturations; in other words, the arc electrodes 53a of the epimere of arc-extinction device 53 is relative with yoke 7, does not have any barrier between them.In addition, the first hole 2d (downside on Fig. 4 (a) paper) extension to the right is provided with narrow width part, inserts two contacts 913 in this narrow width part, and guarantees the rotary motion trace of movable contact 13.In addition, the 26th, as the reflecting plate of pressure bearing section, it promotes the separating action of movable contact 13 by the bulbs of pressure of bearing arcing gas, the 27th, the magnetic core (core) of raising electromagnetic repulsive force, therefore, " section opens circuit " recorded and narrated in claims, for example refer to and add by said reflection plate 26, magnetic core 27 zone that arc-extinction device 53, arc channel 25 form.
The additive method relevant to above-mentioned " promotion separating action " is described here.In Fig. 3, if hollow bulb 22a is set on fixed iron core 22, on this hollow bulb 22a, have and movable core 24 butts or approaching bar 28, as shown in the record of background technology part, make the movable contact 13 of bar 28 collision by moving of movable core 24, therefore, the action of not waiting for switching mechanism section 51 just can make promptly to separate between two contacts 9,13.Due on this basis, in the electric arc of present embodiment 1 moves the mode of opening circuit, as noted above, comprise coil 18 on the current path formed by electric arc, so, still by the magnetic force of this coil 18, movable core 24 and bar 28 move to the direction that movable contact 13 is separated, therefore, can stop movable contact 13 to rotate (so-called " backswing ") to the contact direction, can maintain higher arc voltage, can realize arc transfer rapidly.In addition, the 29th, be laid on the insulating barrier between yoke 7 and coil 18, utilize this insulating barrier 29, naturally needless to say, even in electric arc maintains, can not make electric current (arc current) walk around coil 18 yet, thereby produce suitable magnetic force when current detecting.
As noted above, circuit breaker 101 in a circuit according to the invention, can meet the raising of the stable and opening performance of characteristic, for the requisite key property of circuit-breaker, and realize automatic Composition simultaneously.This point, especially for the miniature circuit breaker of cost competitiveness fierceness, can contribute to significantly income to improve.
Claims (3)
1. a circuit-breaker, it has:
Intermediate base, it accommodates switching mechanism section and over current trip, and this switching mechanism section has operating grip, is configured between frame plate respect to one another, and this over current trip is detected overcurrent, and described switching mechanism section is rotated; Pedestal, it is accommodated and comprises arc-extinction device in the interior section that opens circuit, the electric arc that this arc-extinction device will produce between movable contact and the fixed contact therefor that repeatedly contacts/separate with this movable contact blocks, and this movable contact is arranged on the cross bar rotated with described switching mechanism section's interlock; And lid, it covers described intermediate base, pedestal and is housed in each parts in described intermediate base,
This circuit-breaker is characterised in that,
The described section that opens circuit is covered by described intermediate base, and described over current trip is to utilize to be pressed into to carry out fastening and realize to accommodating of this intermediate base,
On described intermediate base, on the face of the direction quadrature with this intermediate base being inserted to described pedestal, with the described section of opening circuit, relatively run through the first hole is set, and this first hole is by the parts obturation that forms described over current trip.
2. a circuit-breaker, it has:
Intermediate base, it accommodates switching mechanism section and over current trip, and this switching mechanism section has operating grip, is configured between frame plate respect to one another, and this over current trip is detected overcurrent, and described switching mechanism section is rotated; Pedestal, it is accommodated and comprises arc-extinction device in the interior section that opens circuit, the electric arc that this arc-extinction device will produce between movable contact and the fixed contact therefor that repeatedly contacts/separate with this movable contact blocks, and this movable contact is arranged on the cross bar rotated with described switching mechanism section's interlock; And lid, it covers described intermediate base, pedestal and is housed in each parts in described intermediate base,
This circuit-breaker is characterised in that,
The described section that opens circuit is covered by described intermediate base, and described over current trip is to utilize to be pressed into to carry out fastening and realize to accommodating of this intermediate base,
Run through on described intermediate base the second hole is set, it is for the fastening described over current trip by being pressed into, for making this over current trip can be to the direction activity with being pressed into opposite direction, and, when described intermediate base is inserted to described pedestal, this second hole is by the lug boss obturation be arranged on described pedestal.
3. circuit-breaker according to claim 2, is characterized in that,
On described over current trip, bend is set, described over current trip is accommodated by described bend is pressed into to carry out fastening the realization to described the second hole to described intermediate base.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-292671 | 2009-12-24 | ||
| JP2009292671A JP5327038B2 (en) | 2009-12-24 | 2009-12-24 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102110557A CN102110557A (en) | 2011-06-29 |
| CN102110557B true CN102110557B (en) | 2013-12-18 |
Family
ID=43757916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010268557 Active CN102110557B (en) | 2009-12-24 | 2010-08-30 | Circuit breaker |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2339605B1 (en) |
| JP (1) | JP5327038B2 (en) |
| KR (1) | KR101172978B1 (en) |
| CN (1) | CN102110557B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5812813B2 (en) * | 2011-11-11 | 2015-11-17 | 三菱電機株式会社 | Circuit breaker |
| JP5747806B2 (en) * | 2011-12-14 | 2015-07-15 | 三菱電機株式会社 | Circuit breaker |
| JP6191125B2 (en) * | 2012-11-16 | 2017-09-06 | 富士電機機器制御株式会社 | Circuit breaker |
| EP3046132A1 (en) * | 2015-01-15 | 2016-07-20 | Siemens Aktiengesellschaft | Circuit breaker |
| CN106098488B (en) * | 2015-04-30 | 2019-04-05 | 现代电力与能源系统株式会社 | Breaker |
| CN109390190B (en) * | 2017-08-03 | 2020-11-03 | 乐星电气(无锡)有限公司 | Circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4388506A (en) * | 1979-02-07 | 1983-06-14 | Terasaki Denki Sangyo Kabushiki Kaisha | Circuit interrupter |
| CN1835164A (en) * | 2005-02-25 | 2006-09-20 | 富士电机机器制御株式会社 | Disjoncteur |
| CN1913073A (en) * | 2005-08-12 | 2007-02-14 | 富士电机机器制御株式会社 | Circuit breaker |
| CN1988096A (en) * | 2005-12-21 | 2007-06-27 | 三菱电机株式会社 | Circuit breaker |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56135649U (en) | 1980-03-14 | 1981-10-14 | ||
| JPH0195049U (en) * | 1987-12-17 | 1989-06-22 | ||
| JPH09270225A (en) | 1996-02-02 | 1997-10-14 | Hitachi Ltd | Circuit breaker, and manufacture of it |
| US6377144B1 (en) * | 1999-11-03 | 2002-04-23 | General Electric Company | Molded case circuit breaker base and mid-cover assembly |
| DE10129498C1 (en) * | 2001-06-19 | 2003-03-06 | Moeller Gmbh | Multi-pole electrical switching device with switch lock |
| US6933814B2 (en) * | 2003-05-13 | 2005-08-23 | General Electric Company | Phase-to-phase isolation of cassette type circuit breakers |
| JP2007052942A (en) * | 2005-08-16 | 2007-03-01 | Fuji Electric Holdings Co Ltd | Circuit breaker |
-
2009
- 2009-12-24 JP JP2009292671A patent/JP5327038B2/en active Active
-
2010
- 2010-07-08 EP EP10168874.5A patent/EP2339605B1/en not_active Not-in-force
- 2010-08-30 CN CN 201010268557 patent/CN102110557B/en active Active
- 2010-09-03 KR KR20100086322A patent/KR101172978B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4388506A (en) * | 1979-02-07 | 1983-06-14 | Terasaki Denki Sangyo Kabushiki Kaisha | Circuit interrupter |
| CN1835164A (en) * | 2005-02-25 | 2006-09-20 | 富士电机机器制御株式会社 | Disjoncteur |
| CN1913073A (en) * | 2005-08-12 | 2007-02-14 | 富士电机机器制御株式会社 | Circuit breaker |
| CN1988096A (en) * | 2005-12-21 | 2007-06-27 | 三菱电机株式会社 | Circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101172978B1 (en) | 2012-08-09 |
| EP2339605B1 (en) | 2017-01-04 |
| JP5327038B2 (en) | 2013-10-30 |
| JP2011134570A (en) | 2011-07-07 |
| EP2339605A1 (en) | 2011-06-29 |
| CN102110557A (en) | 2011-06-29 |
| KR20110074424A (en) | 2011-06-30 |
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