EP2015334B1 - Luftschalter mit einfach anbringbarer Struktur für ein Überstromrelais - Google Patents
Luftschalter mit einfach anbringbarer Struktur für ein Überstromrelais Download PDFInfo
- Publication number
- EP2015334B1 EP2015334B1 EP08011612.2A EP08011612A EP2015334B1 EP 2015334 B1 EP2015334 B1 EP 2015334B1 EP 08011612 A EP08011612 A EP 08011612A EP 2015334 B1 EP2015334 B1 EP 2015334B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- over current
- current relay
- circuit breaker
- air circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/14—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch
- H01H31/16—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with angularly-movable bridging contact or contact-carrying member
- H01H31/18—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with angularly-movable bridging contact or contact-carrying member actuated through the movement of one or more insulators
-
- 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
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- 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
- H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
-
- 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
- H01H2071/006—Provisions for user interfaces for electrical protection devices
-
- 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
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
Definitions
- the present invention relates to an air circuit breaker, more particularly, to an air circuit breaker having a simple detachable structure for an over current relay.
- An over current relay is a part of an electronic device, serving as a controller for an air circuit breaker.
- the over current relay serves to sense an abnormal current such as a short circuit current and an over current on a circuit and then generate an electric driving signal to a trip actuator triggering a switching mechanism so that the switching mechanism can be tripped in an air circuit breaker, to display an operation state of the air circuit breaker, and to communicate with an external monitoring device.
- the over current relay is detached from the air circuit breaker when it is required to be replaced with a new one because its life is over, it is required to be checked due to an error generated while being operated, or it is required to be replaced with a multifunctional one.
- the over current relay should be disassembled for an inspector's safety.
- US-A-5 043 688 discloses a circuit interrupter which includes basic overcurrent protection facility along with selective electrical accessories.
- a molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment.
- US-B1-6 480 082 discloses a circuit breaker having a safe construction, where no electrically charged portions are exposed in an accessory installation area or anywhere outside a main circuit case even if a cover of the circuit breaker is opened in a live condition.
- US-A-5 581 219 discloses a circuit breaker comprising a container made of electrically insulating material, the container being constituted by a casing and a cover; a switching mechanism contained in the container; partition walls defining a recess in the casing, the recess being separated from an interior of the container by the partition walls; and a base made of electrically insulating material.
- JP 02 044629 discloses the installation of an appendix device by forming a coupling part of a functional member with the appendix device with possibility of coupling by unidirectional motion of the functional member toward a cover, and forming a cutoff window in a part of cover so as to allow insertion from outside.
- a front cover covering an almost entire front surface of the air circuit breaker should be detached from an air circuit breaker main body that is disposed at a rear side thereof. And, to this end, it is required to unscrew a plurality of connection screws, which causes inconvenience and wasting of time.
- the present invention is directed to providing an air circuit breaker having a simple detachable structure for an over current relay.
- FIG. 1 is a perspective view obliquely showing an air circuit breaker from an upper side thereof in accordance with the present invention.
- the air circuit breaker in accordance with the present invention includes a main body 100, a main cover 200 covering a front surface of the main body 100, a sub cover 300 installed at one side of the main cover, and an over current relay 400 installed at a rear side of the sub cover 300 so it can be disassembled therefrom and serving as a controller of the air circuit breaker.
- the main body 100 of the air circuit breaker includes one switching mechanism (not shown) for providing a switching driving force, movable contactors and fixed contactors (not shown) for multiple phases, a common switching shaft (not shown) for transferring the switching driving force of the switching mechanism to the multiple movable contactors at the same time, an arc extinguishing mechanism for extinguishing an arc generated while executing an operation for breaking a circuit, namely, a tripping operation, or the like.
- the main cover 200 covers the front surface of the air circuit breaker and approximately has a square shape.
- the main cover 200 is formed of an electrically insulated resin.
- the main cover 200 has a front surface provided with a manipulation button (reference numeral not given) for switching on or off the air circuit breaker, a charging handle (reference numeral not given) for manually charging a closing spring, or the like.
- the main cover 200 is also called as a front surface manipulation portion.
- the sub cover 300 is a member approximately having a rectangular shape, and is formed of an electrically insulated resin.
- the sub cover 300 is provided with an opening portion 310 allowing a front surface of an over current relay 400 to be exposed so that a user can approach the front surface of the over current relay 400.
- the sub cover 300 is installed at one side of the main cover 200, and assembled to the main cover 200 so it can be disassembled from the main cover 200 by being pushed up as shown in FIGS. 2 to 4 .
- the sub cover 300 is provided with a hook portion 320 for preventing the sub cover 300 from being separated therefrom when it is assembled to the main cover 200.
- the main cover 200 is provided with an insertion recess portion 220 corresponding to the hook portion 320 of the sub cover 300 so as to allow the hook portion 320 to be inserted thereinto.
- the insertion recess portion 220 is implemented as a rectangular opening that is narrow and long in a length direction when being viewed from a front side. In the present invention, five insertion recess portions 220 are provided, preferably.
- the hook portion 320 of the sub cover 300 is provided with an engaging recess portion 321.
- the main cover 200 is provided with a protrusion 230 corresponding to the engaging recess portion 321 of the hook portion 320 thus to be engaged with the engaging recess portion 321.
- the hook portion 320 of the sub cover 300 is provided with an inclined surface 311 for smoothly sliding and pushing up the sub cover 300
- the main cover 200 is also provided with an inclined surface 210a-1 corresponding to the inclined surface 311 of the hook portion 320.
- unexplained reference numeral 210a denotes an upper portion of the insertion recess portion 220 of the main cover 200
- 210b denotes a lower portion of the insertion recess portion 220 of the main cover 200.
- the air circuit breaker in accordance with the present invention further includes a supporting base 500 fixedly installed at the main body 100 so as to support the over current relay 400 to be disassembled.
- the supporting base 500 is provided with a guide rail 510 for guiding the over current relay 400 when it is assembled to and disassembled from the air circuit breaker.
- the over current relay 400 is provided with a guide shoe 410 corresponding to the guide rail 510.
- the guide rail 510 and the guide shoe 410 are horizontally formed so that the over current relay 400 can be pushed into the supporting base 500 or drawn out therefrom in a horizontal direction.
- the over current relay 400 is provided with fixing protrusions 420 at three positions, i.e., an upper portion and right and left side portions thereof.
- the fixing protrusion 420 supports a position fixing screw S and is provided with a screw through hole (not shown) which the position fixing screw S can pass therethrough.
- the supporting base 500 is provided with screw connection portions 520 forwardly extended from the upper portion and the right and left side portions thereof and provided with screw holes therein, as shown in FIGS. 6 to 9 .
- the sub cover 300 is pushed up with being held in a user's hand.
- it is required to push up the sub cover 300 by a force strong enough for the engaging recess portion 321 of the hook portion 320 to get over the protrusion 230 of the main cover 200.
- the inclined surface 311 of the hook portion 320 and the inclined surface 210a-1 of the main cover 200 come into contact with each other and thus the sub cover 300 can be smoothly disassembled from the main cover 200, as shown in FIG. 3 .
- a state that the hook portion 320 of the sub cover 300 is completely disassembled from the insertion recess portion 220 of the main cover 200 is shown in FIG. 4 .
- Operation for assembling the sub cover 300 to the main cover 200 can be implemented by reversing the disassembling operation, with reversing the drawings from FIG. 4 to FIG. 2 through FIG. 3 .
- the sub cover 300 is held in the user's hand and the hook portion 320 of the sub cover 300 is pushed into the insertion recess portion 220 of the main cover 200. And the sub cover 300 is drawn down.
- the inclined surface 311 of the hook portion 320 and the inclined surface 210a-1 of the main cover 200 come into contact with each other and thus the hook portion 320 of the sub cover 300 can be smoothly inserted into the insertion recess portion 220 of the main cover 200.
- the sub cover 300 can be assembled to the main cover 200, as shown in FIG. 2 .
- the operation for disassembling the sub cover 300 from the main cover 200 should precede.
- the sub cover 300 can be easily disassembled from the main cover 200 by only being pushed up.
- the assembling operation may be executed at the time of replacing the over current relay 400 or returning the over current relay 400 to its original position after checking the over current relay 400.
- the guide shoe 410 of the over current relay 400 to be assembled is fitted into the guide rail 510 of the supporting base 500.
- the over current relay 400 is pushed into a receiving space in the supporting base 500 and the position fixing screws S are coupled through the fixing protrusions 420 of the over current relay 400 and the screw connection portions 520 of the supporting base 500, thus the over current relay 400 is fixed at the supporting base 500.
- the disassembling operation may be executed at the time of replacing or checking the over current relay 400.
- the disassembling operation is executed by reversing the assembling operation.
- the position fixing screws S are unscrewed so as to release the over current relay 400 from the fixed state.
- the over current relay 400 is drawn out from the receiving space in the supporting base 500 thus to terminate the disassembling operation.
- the guide shoe 410 of the over current relay 400 is guided along the guide rail 510 of the supporting base 500 so that the over current relay 400 can be smoothly disassembled from the supporting base 500.
- the air circuit breaker having the simple detachable structure for the over current relay in accordance with the present invention, when assembling or disassembling the over current relay, it is not required to detach the main cover of the air circuit breaker from the main body thereof that is positioned at the rear side of the main cover, accordingly it is capable of simply assembling or disassembling the over current relay.
- the air circuit breaker having the simple detachable structure for the over current relay in accordance with the present invention is capable of assembling or disassembling the over current relay to or from the main cover by only pushing up or drawing down the sub cover, accordingly an operational productivity can be drastically enhanced when replacing or checking the over current relay.
- the guide rail and the guide shoe are provided so as to guide the moving over current relay. Accordingly, it is capable of simply and rapidly executing the assembling and disassembling operations of the over current relay.
Claims (4)
- Offener Leistungsschutzschalter, umfassend:ein Hauptgehäuse (100);eine Hauptabdeckung (200), die eine Vorderoberfläche des Hauptgehäuses bedeckt;eine Unterabdeckung (300), die an einer Seite der Hauptabdeckung installiert ist; undein offenes Stromrelais (400), das an eine Hinterseite der Unterabdeckung installiert ist, sodass es davon demontiert werden kann, und das als eine Steuerung des offenen Leistungsschutzschalters dient;dadurch gekennzeichnet, dassdie Unterabdeckung an dem Hauptgehäuse montiert ist, sodass sie davon demontiert werden kann, indem sie hochgedrückt wird, undder offene Leistungsschutzschalter weiterhin eine Unterstützungsbasis (500) umfasst, die fest an dem Hauptgehäuse installiert ist, die das offene Stromrelais unterstützt demontiert zu werden, wobei die Unterstützungsbasis mit einer Führungsschiene (510) bereitgestellt wird zum Führen des offenen Stromrelais, wenn es in dem offenen Leistungsschutzschalter montiert und davon demontiert wird, und wobei das offene Stromrelais mit einem Gleitschuh (410) bereitgestellt wird, der der Führungsschiene entspricht, und wobei die Führungsschiene und der Geleitsschuh horizontal gebildet sind, so dass das offene Stromrelais in die Unterstützungsbasis hereingedrückt werden kann oder daraus in eine horizontale Richtung herausgezogen werden kann.
- Offener Leistungsschutzschalter nach Anspruch 1, wobei die Unterabdeckung mit einem Hakenanteil (23) bereitgestellt wird, um zu verhindern, dass die Unterabdeckung davon getrennt wird wenn sie an der Hauptabdeckung montiert wird, und
wobei die Hauptabdeckung (200) mit einem Einfügevertiefungsanteil (220) bereitgestellt wird, der dem Hakenanteil der Unterabdeckung entspricht, um es so dem Hakenanteil zu erlauben dort hinein eingefügt zu werden. - Offener Leistungsschutzschalter nach Anspruch 2, wobei der Hakenanteil der Unterabdeckung mit einem Einrastvertiefungsanteil (321) bereitgestellt wird, und
wobei die Hauptabdeckung mit einem Vorsprung (230) bereitgestellt wird, der dem Einrastvertiefungsanteil des Hakenanteils entspricht, um demzufolge mit dem Einrastvertiefungsanteil eingerastet zu werden. - Offener Leistungsschutzschalter nach Anspruch 2, wobei der Hakenanteil der Unterabdeckung mit einer geneigten Oberfläche (311) bereitgestellt wird, um die Unterabdeckung gleichmäßig zu gleiten und nach oben zu drücken, und
wobei die Hauptabdeckung ebenso mit einer geneigten Oberfläche (210a-1) bereitgestellt wird, die der geneigten Oberfläche des Hakenanteils entspricht.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070070266A KR100881362B1 (ko) | 2007-07-12 | 2007-07-12 | 기중차단기 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2015334A2 EP2015334A2 (de) | 2009-01-14 |
EP2015334A3 EP2015334A3 (de) | 2010-03-24 |
EP2015334B1 true EP2015334B1 (de) | 2015-08-05 |
Family
ID=39846943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08011612.2A Active EP2015334B1 (de) | 2007-07-12 | 2008-06-26 | Luftschalter mit einfach anbringbarer Struktur für ein Überstromrelais |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2015334B1 (de) |
KR (1) | KR100881362B1 (de) |
CN (1) | CN101345164B (de) |
ES (1) | ES2551715T3 (de) |
MY (1) | MY160155A (de) |
RU (1) | RU2370846C1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN205140890U (zh) * | 2015-11-10 | 2016-04-06 | 浙江正泰电器股份有限公司 | 万能式断路器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6132324A (ja) * | 1984-07-20 | 1986-02-15 | 富士電機株式会社 | 配線用遮断器の内部付属装置取付構造 |
JPH0244629A (ja) * | 1988-08-01 | 1990-02-14 | Fuji Electric Co Ltd | 配線用遮断器 |
US5043688A (en) * | 1990-05-03 | 1991-08-27 | General Electric Company | Actuator-accessory interface unit for molded case circuit interrupter |
TW200593B (de) * | 1991-10-24 | 1993-02-21 | Fuji Electric Co Ltd | |
KR100343132B1 (ko) * | 1995-02-14 | 2002-11-23 | 삼성전자 주식회사 | 반도체장치의소자분리방법 |
US6480082B1 (en) * | 1996-12-25 | 2002-11-12 | Hitachi, Ltd. | Circuit breaker |
DE20021499U1 (de) * | 2000-12-20 | 2002-05-02 | Moeller Gmbh | Kipphebelbetätigtes elektrisches Schaltgerät mit frontseitigem Deckel |
KR20030072949A (ko) * | 2002-03-07 | 2003-09-19 | 엘지전자 주식회사 | 공기 조화기용 송풍기 |
-
2007
- 2007-07-12 KR KR1020070070266A patent/KR100881362B1/ko active IP Right Grant
-
2008
- 2008-06-26 ES ES08011612.2T patent/ES2551715T3/es active Active
- 2008-06-26 EP EP08011612.2A patent/EP2015334B1/de active Active
- 2008-07-08 MY MYPI20082522A patent/MY160155A/en unknown
- 2008-07-11 RU RU2008128388/09A patent/RU2370846C1/ru active
- 2008-07-11 CN CN2008101335280A patent/CN101345164B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
KR100881362B1 (ko) | 2009-02-02 |
ES2551715T3 (es) | 2015-11-23 |
KR20090006678A (ko) | 2009-01-15 |
CN101345164A (zh) | 2009-01-14 |
EP2015334A3 (de) | 2010-03-24 |
EP2015334A2 (de) | 2009-01-14 |
MY160155A (en) | 2017-02-28 |
CN101345164B (zh) | 2012-01-18 |
RU2370846C1 (ru) | 2009-10-20 |
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