CN103123872B - With the installation switching device of cup and guide rib - Google Patents

With the installation switching device of cup and guide rib Download PDF

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Publication number
CN103123872B
CN103123872B CN201210462600.0A CN201210462600A CN103123872B CN 103123872 B CN103123872 B CN 103123872B CN 201210462600 A CN201210462600 A CN 201210462600A CN 103123872 B CN103123872 B CN 103123872B
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CN
China
Prior art keywords
electric arc
contact
arc
guide rib
contact pin
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Active
Application number
CN201210462600.0A
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Chinese (zh)
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CN103123872A (en
Inventor
J.施密特
T.巴林格
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ABB AB
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Asea Brown Boveri AB
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Publication of CN103123872A publication Critical patent/CN103123872A/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346Details concerning the arc formation chamber
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H2009/348Provisions for recirculation of arcing gasses to improve the arc extinguishing, e.g. move the arc quicker into the arcing chamber
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/302Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342Venting arrangements for arc chutes

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)

Abstract

The present invention relates to a kind of with the installation switching device of cup and guide rib, it is with: case, contact assembly in cup, and contact assembly comprises fixing contact element and movable contact element; With arc suppressing transformer; With the first and second electric arc guide rails, the electric arc produced at contact assembly place when connecting is directed in arc suppressing transformer by it, wherein, first electric arc guide rail is associated with fixed contact, wherein at least one height face of cup inside case has multiple outstanding guide rib, its from the region of contact assembly extend with extending about the traveling direction of electric arc greatly until arc suppressing transformer region in arrange. At least one height face of cup inside case have in the region of fixed contact with the outstanding contact pin of periphery contour that closes of annular ground, it is arranged between the guide rib of contiguous fixed contact therefor and the first electric arc guide rail so that can be configured with the gas circulation around contact pin flowing between the guide rib and the first electric arc guide rail of contiguous fixed contact therefor.

Description

With the installation switching device of cup and guide rib
Technical field
The present invention relates to the installation switching device of a kind of preamble according to claim 1, its with: case, in cup the contact assembly (Kontaktanordnung) of (Vorkammerraum), wherein, contact assembly comprises fixing with movable contact element; With arc suppressing transformer; With the first and second electric arc guide rails, the electric arc produced at contact assembly place when connecting is directed in arc suppressing transformer by it, wherein, first electric arc guide rail is associated with fixed contact (Festkontakt), wherein, at least one height face (Teilflaeche) of cup inside case has multiple outstanding guide rib (Leitrippe), its from the region of contact assembly greatly about the traveling direction of electric arc extend extend until arc suppressing transformer region in arrange.
The present invention particularly relates to electric arc cup, not band cup dish (Vorkammerplatte) and the electrical installation device of the arc suppressing apparatus of band current limiting. The present invention such as can be used in route protection switch or start in protecting switch.
Background technology
Route protection switch or start protecting switch for, load has the electric wire of the overcurrent (Ueberstrom) of high current intensity be separated in case of a fault with supply network. To this, being usually provided with fixing with movable contact element in electric arc cup, it is connected with corresponding joint Terminal. When switch contact is opened, that is when movable contact element is lifted away from from fixing contact element, producing switch electric arc (Schaltlichtbogen), it is extinguished in the arc suppressing apparatus this arranged. The electric arc of pull-out is transformed into electric arc guide rail from the contact element opened, advance on the direction of arc suppressing transformer along electric arc guide rail with its foot point (Fusspunkt), to be next divided into a series of sub-electric arc in there in groups of arc plates (often being formed with the form of so-called deionization-arc suppressing transformer). In there owing to being divided into the sub-electric arc of series connection, produce high arc voltage for current limliting, thus arc extinction.
A kind of installation switching device shown in file DE3908102A1, be molded with contact pin that multiple prism shape is given prominence to, that point to the opening plane of contact element wherein in cup at wall place, room, it passes between electric arc traveling guide rail about the traveling direction of switch electric arc greatly from the region of contact component and extends until arranging in arc extinguishing region. Guide closely between the outstanding upside of narrow contact pin at this from the switch electric arc at contact position and additionally driven, and the gaseous tension produced before electric arc post (Lichtbogens ule) can around its balance in flow passage. In particular, the gaseous tension produced before the electric arc of movement can release in the flow passage between contact pin. The pressure reduction hindering electric arc to move effectively it is equilibrated in the region before and after electric arc by this flowing of gas. In addition, pressure equilibrium be provided in electric arc after contact position have the good deionization (Entionisierung) newly lighting dangerous region.
Summary of the invention
It is an object of the invention to so improve a kind of installation switching device with the guide rib in cup so that the gas produced by electric arc can also arrive quickly on the direction of groups of arc plates.
This object is by realizing with the installation switching device of the feature of the characteristic of claim 1.
According to the present invention, namely at least one height face of cup inside case have in the region of fixed contact therefor with the outstanding contact pin of periphery contour that closes of annular ground, it is arranged between the guide rib of contiguous fixed contact therefor and the first electric arc guide rail so that can be configured with the gas circulation around contact pin flowing between the guide rib and the first electric arc guide rail of contiguous fixed contact therefor. Therefore contact pin designed according to this invention be arranged in the region of fixed contact therefor. It with annular the design of periphery contour that closes allow arc extinguishing gases to circulate around the gas of contact pin. After the switch electric arc advanced to arc suppressing apparatus, thus produce the partial reflux of arc extinguishing gases, and this backflow reduces the pressure reduction on front side of electric arc and between rear side and additionally drives electric arc. Therefore electric arc is also pushed in groups of arc plates quickly.
The form of implementation that according to the present invention one is favourable, first electric arc guide rail has the intercept of elongation, fixing contact angle (Festkontakthorn) that carry fixed contact therefor, that arc ground constructs is connected with its one end, and with annular the contact pin of periphery contour that closes be arranged in the region of fixing contact angle so that the gas circulation around contact pin flowing can be configured with between the contiguous fixing guide rib of contact angle and the intercept of the elongation of the first electric arc guide rail. The free end of fixing contact angle herein means the beginning of the intercept of the elongation to the first electric arc guide rail. Here the first electric arc guide rail is also referred to as fixing contact guide rail. By fixing contact angle, the foot point of switch electric arc has been introduced to towards arc suppressing transformer near the intercept of the elongation of fixing contact guide rail in first subsegment in its path so that then make electric arc foot point easily be transformed in the part of elongation of guide rail. According to the present invention, generating strap be improved that the contact pin of the gas flowing of the circulation of the effect of electric arc traveling speed is installed in arc motion this start in region. The effect accelerating traveling speed is big especially here.
An advantageous forms of implementation according to the present invention, contact pin has the contact pin intercept of arc, and the periphery contour of the contact pin intercept of arc mates mutually with the periphery contour of fixing contact angle. The arc covering fixing contact angle on profile is thus realized with the segmental arc of contact pin. Observing on the direction of wide side being perpendicular to installation switching device, the fixing arc of contact angle and the segmental arc of contact pin are directed to a certain extent mutually. The gas of switch electric arc thus arranges wall to a certain extent, it is formed by the arc intercept of the arc and contact pin of fixing contact angle, and therefore gas be forced to around this wall and thus circulate around contact pin, because being blocked by this wall towards the direct-path of arc suppressing transformer for straight line it.
The form of implementation that according to the present invention one is favourable, case is assembled by two case half shells, and wherein, guide rib and contact pin are arranged on the sub-face inside the case of case half shell. The height of the inwall that guide rib and contact pin are perpendicular to case half shell can so design at this so that in case half shell of assembling, the whole width between two relative inner sides of case half shell is filled up in guide rib and contact pin. Thus arcing gas is forced between guide rib or says that in the flow passage formed between contact pin and the guide rib of contiguous contact pin, it can not get around (ausweichen) along inwall in side.
Another favourable form of implementation according to the present invention, case is assembled by two case half shells, wherein, the relative sub-face inside the case of each case half shell being molded with sub-guide rib and sub-contact pin, it is complementally complemented at guide rib and contact pin when assembling case half shell.
Accompanying drawing explanation
According to illustrating that the accompanying drawing of embodiments of the invention should elaborate and illustrate other favourable design and the improvement scheme of the present invention and the present invention wherein.
Wherein:
Fig. 1 display, to the vertical view of case half shell opened of the installation switching device according to the present invention, wherein partly removes assembly,
Fig. 2 shows the schematic vertical view of the front chamber region to the installation switching device according to the present invention, with the arrow flowed for illustration of gas, and
Fig. 3 display is to the vertical view of case half shell opened of the installation switching device according to the present invention, and wherein, all assemblies are removed.
Identical in the accompanying drawings or phase same-action component or element are indicated with identical Reference numeral. Illustrated form of implementation exemplarily represents summary of the invention and the not conditional effect of tool.
List of numerals
1 installation switching device
2 case half shells
Positive side before 3
4,4' positive side below
The narrow side of 5,5'
6 fixation side
7 recesses
8,8' keeps nose (Haltenase)
9 switch handles
10 hinges (Gelenkkette)
11 cards hoop (Buegel)
12 intermediate barss
13 pawl bars (Klinkenhebel)
14 trigger bars (Ausloesehebel)
15 impacts bar (Schlaghebel)
16 contact levers
17 impacts armature (Schlaganker)
18 bimetals
19 arc suppressing transformer
20 cups
21 first guide rails, fixing contact guide rail
22 intercepts extended
23 fixing contact angles
24 fixed contact therefors
25 the 2nd guide rails
26 legs tilted
27 maintenances leg (Halteschenkel)
28 bimetal fixed positions
29 movable contact elements
30,30', 30'' guide rib
The contact pin of 31 annulars
The contact pin intercept of 32 arcs
33 ribs
34 grooves
35 first sub-legs
36 bends (Abbiegung).
Embodiment
Namely Fig. 1 illustrates the vertical view of case half shell 2 opened to the installation switching device 1 (here route protection switch) according to the present invention. In installation switching device 1 layout of structure, its function and other assembly or element (it is in order to the function mounting of its regulation is in case 2) and design therein corresponding with illustrated those in file DE102008006863A1 to a great extent. Therefore this file is included in the disclosure of the present invention in the other structure and function of installation switching device and its assembly and parts. The design of the cup of the especially such installation switching device of the content of the present invention.
The case of the installation switching device according to Fig. 1 has positive side 3 above, positive side 4 below, 4', narrow side 5,5' and fixation side 6. There is the recess 7 stretching into maintenance nose 8 wherein, 8' with two at fixation side 6 place, utilize and keep nose 8,8' that case can be fixed on nominal contour supporting rail place. Assembly needed for function and the component of all regulations for route protection switch are not shown in FIG. Be closely linked to the present invention assembly being and element are especially shown.
The switch handle 9 being used for cabinet switch mechanism and movable contact lever 16 is there is at positive side 3 place above. Movable contact lever 16 carries movable contact element 29. Switch handle 9 is connected with contact lever 16 via hinge 10. Hinge 10 comprises card hoop 11, intermediate bars 12, pawl bar 13 and trigger bar 14. Intermediate bars 12 and pawl bar 13 form the occlusion position (Verklinkungsstelle) of on-off mechanism each other. Suitable handle trigger bar time this occlusion position is de-stings, usually say, trigger bar 14 is so in release position. Sting if occlusion position is de-, then the motion of contact lever 16 discharges in its open position, and contact lever 16 is pressed onto in open position by spring (at this do not illustrate). As long as occlusion position is not engaged again, contact lever can not be reset to again in its off-position, and contact position and stay open. When switch handle 9 swings to its shutoff position from its on position, bind round 11 by making this oscillating motion via card and it is attached to occlusion position, it is possible to occlusion the de-of position stings in release. In order to make trigger bar move in its release position, bar 15 is connected with impacting for it. Impact bar 15 again impact armature system 17 with Thermal release device (at this bimetal strip 18) and with magnetic be connected. Realizing via another card hoop with the link of bimetal strip 18, it is at this do not illustrate. Not only when lasting overcurrent, when bimetal strip 18 corresponding broadly bending time, and when high short-circuit current, when impacting armature system 17 and respond, impact bar 15 to be swung, being delivered on trigger bar 14 by its oscillating motion and thus cause occlusion the de-of position to sting, this causes contact lever 16 to swing and therefore cause movable contact element 29 to be lifted away from from fixing contact element 14. At this, between movable and fixing contact element 29,24, it is configured with switch electric arc (at this do not illustrate).
Switch electric arc is directed in arc suppressing transformer 19 by the device being suitable for arc extinguishing. Fig. 1 to 3 identifies rib 33 that extend in parallel, that stretch out from encloser inner wall in the region of arc suppressing transformer 19. The groove 34 formed between these ribs 33 is fixed with arc extinguishing plate (at this do not illustrate). Electric arc punishes into the sub-electric arc of a series of connected in electrical series when entering in arc suppressing transformer at arc extinguishing plate, thus produces the arc voltage improved, its react on be added in terminal place voltage of supply, limiting short-circuit current and cause the extinguishing of electric arc.
The region that the contact assembly being made up of movable and fixing contact element is positioned at case wherein is called as cup 20. Switch electric arc is directed in arc suppressing transformer 19 by means of the first and second electric arc guide rails 21,25 from cup. The electric arc of pull-out is transformed into electric arc guide rail 21,25 at this from the contact element 24,29 opened, and advances towards the groups of arc plates in arc suppressing transformer 19 along electric arc guide rail with its foot point.
Intercept 22, first guide rail 21 that first guide rail 21 has elongation utilizes it to limit arc suppressing transformer on the direction towards positive side 3. There is vertically bending dish in the end of the sensing cup 20 of the intercept 22 extended, impact armature system 17 and be fixed on its place. In addition, at Pan Chu and the angle 23 that thus constructs with being configured with arc at the free end of intercept 22 extended. The direction of fixation side 6 is pointed to the arc side of convex in angle 23, and the contact element 24 that its carrying is fixing, thus it is also referred to as fixing contact angle 23.
2nd guide rail 25 has the intercept of elongation equally, and the 2nd guide rail 25 utilizes it to limit arc suppressing transformer 19 on the direction towards fixation side 6. The form of the leg 26 pointing to the inclination of moveable contact lever in the end of the sensing cup 20 of the intercept extended to tilt is molded with the 2nd intercept. Near the free end of moveable contact lever in its open position, bend 36 is connected to leg 26 place of inclination, and bend 36 points to fixation side 6 downwards and is transitioned in the 3rd intercept. Bend 36 and the 3rd intercept longitudinally cut at this and form two sub-legs extended in parallel 35,27. One sub-leg 35 bends and for being connected to joint Terminal place to the part level of short vertical extension again. 2nd sub-leg 27, extends straight down also referred to as maintenance leg 27 and at its lower free end carrying bimetal fixed position 28, bimetal 18 welds or is otherwise fixed on it and locates. In the open position, the free end of contact lever 16 is near bend 36 so that thus make electric arc be easy to cross on the 2nd electric arc guide rail 25.
It is made up of the material of good conductive with the first and second electric arc guide rails 21,25 of fixing contact angle 23.
Cup 20 has multiple outstanding guide rib 30,30', 30 at least one height face inside case ", its from the region of contact assembly greatly about the traveling direction of electric arc extend extend until arc suppressing transformer 19 region in arrange. From the switch electric arc at contact position at this at guide rib 30,30', 30 " outstanding upside between guide closely and additionally driven, and the gaseous tension produced before electric arc post can around its balance in flow passage. In particular, the gaseous tension produced before the electric arc of movement can at guide rib 30,30', 30 " between flow passage in release. The pressure reduction hindering electric arc to move effectively it is equilibrated in the region before and after electric arc by this flowing of gas. In addition, pressure equilibrium be provided in electric arc after contact position have the good deionization newly lighting dangerous region.
Cup 20 in addition on sub-face inside case in the region of fixed contact therefor 24, have in the region of fixing contact angle 23 with the outstanding contact pin 31 of periphery contour that closes of annular ground more accurately, it is arranged in contiguous fixed contact therefor 24, fixes the guide rib 30 of contact angle 23 more accurately " and between the first electric arc guide rail 21. The contact pin 32 of annular has the intercept 32 (its oliquely downward, protruding upward towards the side of the leg 26 tilted) of arc and straight intercept (it is towards the intercept 32 of upper closed arc) so that contact pin 32 is similar to the shape with alphabetical D generally. The periphery contour of the contact pin intercept 32 of arc mates mutually with the periphery contour of the arc part of fixing contact angle. Thus realize the arc covering fixing contact angle 23 with the segmental arc 32 of contact pin 31 on profile. The fixing arc of contact angle 23 and the segmental arc 32 of contact pin 31 are directed to a certain extent mutually. The gas of switch electric arc thus arranges wall to a certain extent, it is formed by the segmental arc 32 of the arc and contact pin 31 of fixing contact angle, and therefore gas be forced to around this wall and thus circulate around contact pin 31, because being blocked by this wall towards the direct-path of arc suppressing transformer for straight line it.
Thus, in the guide rib 30 of contiguous fixed contact therefor 24 " and the gas circulation flowed around contact pin 31 between the first electric arc guide rail 21, can be configured with. Contact pin 31 is arranged in the region of fixed contact therefor 24. It with annular the design of periphery contour that closes allow arc extinguishing gases to circulate around the gas of contact pin 31. After the switch electric arc advanced to arc suppressing apparatus, thus produce the partial reflux of arc extinguishing gases, and this backflow reduces the pressure reduction on front side of electric arc and between rear side and additionally drives electric arc. Therefore electric arc is also pushed in groups of arc plates quickly. Illustrate that corresponding gas flows by arrow in fig. 2.
Case is implemented with containment structure type, it means that, it is assembled by two case half shells 2, wherein, guide rib 30,30', 30 " and contact pin 31 is arranged on the sub-face inside the case of case half shell 2. Fig. 3 shows the view of such case half shell 2, not any other component of band route protection switch or element. Guide rib and contact pin spray together in a working process when injection moulding case half shell 2 together with other profile element.
Also can relative sub-face patrix system guide rib inside the case of each case half shell and sub-contact pin, " and contact pin 31 that it is complementally complemented at guide rib 30,30', 30 when assembling case half shell.
For professional easily it is seen that, the invention is not restricted to the details of above-mentioned illustrated form of implementation, and the present invention can implement with other special forms, and do not deviate its main feature, and it is desirable to exist form of implementation either side be regarded as illustrate property but not restrictive.

Claims (5)

1. an installation switching device (1), it is with: case (2), contact assembly in cup (20), wherein, described contact assembly comprises fixing contact element (24) and movable contact element (29), with arc suppressing transformer (19), with the first electric arc guide rail (21) and the 2nd electric arc guide rail (25), the switch electric arc produced at described contact assembly place when switching operation is directed in described arc suppressing transformer (19) by it, wherein, described first electric arc guide rail (21) is associated with fixing contact element (24), wherein, described cup (20) has multiple outstanding guide rib (30 at least one height face inside case, 30', 30 "), its extend with extending on the traveling direction of described switch electric arc from the region of described contact assembly until described arc suppressing transformer (19) region in arrange, it is characterized in that, at least one height face of described cup (20) inside described case have in the region of described fixing contact element (24) with the outstanding contact pin (31) of periphery contour that closes of annular ground, it is arranged in described multiple outstanding guide rib (30, 30', between the guide rib of the described fixing contact element of the vicinity in 30 ") (24) (30 ") and described first electric arc guide rail (21), make in described multiple outstanding guide rib (30, 30', can be configured with, between the guide rib of the described fixing contact element of the vicinity in 30 ") (24) (30 ") and described first electric arc guide rail (21), the gas circulation flowed around described contact pin (31).
2. installation switching device according to claim 1 (1), it is characterized in that, described first electric arc guide rail (21) has the intercept (22) of elongation, carry described fixing contact element (24), the fixing contact angle (23) of arc ground structure is connected with one end of the intercept (22) of described elongation, and with annular the described contact pin (31) of periphery contour that closes be arranged in the region of described fixing contact angle (23), make in described multiple outstanding guide rib (30, 30', can be configured with, between the intercept (22) of the elongation of the guide rib of the described fixing contact angle of the vicinity in 30 ") (23) (30 ") and described first electric arc guide rail (21), the gas circulation flowed around described contact pin (31).
3. installation switching device according to claim 2 (1), it is characterized in that, described contact pin (31) has the contact pin intercept (32) of arc, and the periphery contour of the contact pin intercept (32) of described arc mates mutually with the periphery contour of described fixing contact angle (23).
4. according to installation switching device in any one of the preceding claims wherein (1), it is characterized in that, described case is assembled by two cases half shell (2), wherein, described multiple outstanding guide rib (30,30', 30 ") and described contact pin (31) are arranged on the sub-face inside the case of case half shell (2).
5. installation switching device according to any one of claim 1 to 3 (1), it is characterized in that, described case is assembled by two cases half shell (2), wherein, inside the case of each case half shell, relatively the sub-face put is molded with sub-guide rib and sub-contact pin, it complementally supplements into described multiple outstanding guide rib (30,30', 30 ") and described contact pin (31) when assembling described case half shell.
CN201210462600.0A 2011-11-19 2012-11-16 With the installation switching device of cup and guide rib Active CN103123872B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110118968 DE102011118968B3 (en) 2011-11-19 2011-11-19 Installation switching device with pre-chamber space and guide ribs
DE102011118968.1 2011-11-19

Publications (2)

Publication Number Publication Date
CN103123872A CN103123872A (en) 2013-05-29
CN103123872B true CN103123872B (en) 2016-06-01

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EP (1) EP2595168B1 (en)
CN (1) CN103123872B (en)
AR (1) AR088861A1 (en)
DE (1) DE102011118968B3 (en)

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WO2015151394A1 (en) * 2014-03-31 2015-10-08 パナソニックIpマネジメント株式会社 Circuit breaker
WO2015151393A1 (en) * 2014-03-31 2015-10-08 パナソニックIpマネジメント株式会社 Circuit breaker
CN104835701B (en) * 2015-06-09 2016-12-21 厦门宏发开关设备有限公司 A kind of band arc-control device chopper
CN105185671B (en) * 2015-10-30 2019-06-25 上海电科电器科技有限公司 Breaker and its baffle
CN105244242B (en) * 2015-11-02 2017-09-15 上海电科电器科技有限公司 breaker and its exhaust structure
CN205621690U (en) * 2016-03-30 2016-10-05 浙江正泰电器股份有限公司 Miniature circuit breaker
CN117747373B (en) * 2024-01-26 2024-09-20 浙江诚通电力科技有限公司 Arc extinguishing system of low-voltage direct-current breaker

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FR72357E (en) * 1956-10-17 1960-03-31 Busch Jaeger Duerener Metalwer Automatic circuit breaker or installation circuit breaker with manual, magnetic and thermal trip
FR2575861B1 (en) * 1985-01-07 1987-01-16 Merlin Gerin MINIATURE ELECTRIC CIRCUIT BREAKER WITH ARC FORMING CHAMBER
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DE102009023556B4 (en) * 2009-05-30 2012-01-19 Abb Ag Electrical switching device with a thermal release

Also Published As

Publication number Publication date
EP2595168A1 (en) 2013-05-22
EP2595168B1 (en) 2015-10-14
AR088861A1 (en) 2014-07-16
DE102011118968B3 (en) 2013-01-31
CN103123872A (en) 2013-05-29

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