EP1484776A2 - Dispositif de guidage d'air pour refroidir un composant d'un interrupteur - Google Patents

Dispositif de guidage d'air pour refroidir un composant d'un interrupteur Download PDF

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Publication number
EP1484776A2
EP1484776A2 EP04090171A EP04090171A EP1484776A2 EP 1484776 A2 EP1484776 A2 EP 1484776A2 EP 04090171 A EP04090171 A EP 04090171A EP 04090171 A EP04090171 A EP 04090171A EP 1484776 A2 EP1484776 A2 EP 1484776A2
Authority
EP
European Patent Office
Prior art keywords
air
air guiding
switch
guiding device
cooling
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.)
Withdrawn
Application number
EP04090171A
Other languages
German (de)
English (en)
Other versions
EP1484776A3 (fr
Inventor
Clifford A. Buxton
Stefan Losch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1484776A2 publication Critical patent/EP1484776A2/fr
Publication of EP1484776A3 publication Critical patent/EP1484776A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/62—Heating or cooling of contacts
    • 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
    • H01H71/08—Terminals; Connections

Definitions

  • the invention is in the field of electrical switches and is in the constructive design of an air guiding device to cool a switch part.
  • a known electrical switch in the form of a low-voltage circuit breaker is an air guiding device intended for cooling pole track chambers.
  • This air baffle has plates on both of their surfaces are each provided with depressions.
  • Each of the wells forms an air guiding element which forms a Installation position of the switch vertical air duct in a distance from the switch part to be cooled is, the air duct having a downward inflow region for the inflow of cooling air and one pointing upwards Outflow area for the outflow of the cooling air (DE 38 39 269 A1).
  • the air guiding element is shaped such that the inflow region tapers towards the outflow area.
  • An advantageous embodiment of the invention provides that the outflow area widens in the flow direction.
  • This Design of the outflow area of the air duct is the same aerodynamically a diffuser, and thus causes the Air resistance of the air guiding device is minimal.
  • the several arranged one above the other Switch parts assigned can be beneficial multiple air baffles are provided, which are essentially run in alignment. In this way, the air guide optimally available in the electrical switch standing space can be adjusted.
  • Air guiding elements are provided, which are essentially are arranged mirror-symmetrically.
  • a preferred embodiment of the new air guiding device provides that the one or more air guiding elements as flexible Plates formed and held by a common support are. - Such plates can be special, for example inexpensively made of plastic. Then you can additionally act as electrical insulators. - The carrier can accommodate at least one edge section the plates can be provided with at least one groove.
  • the plates can be easily attached to the carrier fix with fasteners, the side surfaces of the Groove and the edge portions of the groove accommodated in the groove Reach through plates.
  • the new air guiding device can preferably be used for cooling disconnect contact systems of an electrical switch. It is advantageous if the carrier at least an air guide by means of a NUT-spring connection is positioned on a rear wall of the switch.
  • the low-voltage power switch 1 a consisting of a front wall 2 and a rear wall 3 Switching pole housing for receiving switching poles 4, 5 and 6.
  • the same Main circuit assigned and with switching elements for Closing and opening are equipped.
  • the exceptions are the parts of the circuit breaker that are used for common attachment and actuation of all poles serve, and essentially under a cover 7 of the circuit breaker 1 by means of a supporting structure on the front wall 2 of the switching pole housing are held.
  • switching poles 4, 5 and 6 On the rear wall 3 of the switching pole housing are the switching poles 4, 5 and 6 in pairs assigned isolating contact systems 8 in the form of lower and upper slat blocks arranged in a known manner when inserting the Circuit breaker in a slide frame, not shown of a control cabinet or a switchgear vertically Grip over the running connection rails.
  • air guide device 9 for cooling the isolating contact systems 8 arranged.
  • These air guiding devices 9 each have a carrier 10 on a tongue and groove connection the rear wall 3 of the circuit breaker 1 positioned and over first fastening means 43 is fastened to the rear wall 3.
  • This carrier 10 is plate-like and has a spring 11 in the form of its side facing the rear wall 3 an edge-like projection, which in an associated Groove 12 engages in the rear wall 3.
  • the four air guiding elements 13, 14, 15 and 16 preferably as thin, curved plates Plastic and therefore very inexpensive.
  • Made of plastic trained plates have the additional advantage that them at the same time as electrical insulators between the Isolating contact systems 8 of the adjacent switching poles 4 and 5 or 5 and 6 serve.
  • the plates each grip with one Edge section 17, 18, 19 and 20 in an assigned groove 21, 22, 23 and 24 of the carrier 10 on its from the rear wall 3rd side of the circuit breaker.
  • each of the air guide elements 13, 14, 15 and 16 on the Carriers 10 each serve two second fastening means 25, the side surfaces of the groove and those received in the groove Edge sections 17, 18, 19 and 20 of the plates across reach through the plates.
  • the course of the grooves 21, 22, 23 and 24 is designed so that the bent plates used to cool the Isolating contact systems 8 form air channels 26, 27, 28 and 29, which run vertically when the circuit breaker is installed and a downwardly open inflow region 30 and one Outflow region 31 open at the top.
  • the Isolating contact systems 8 of the one shown on the left in FIG. 1 outer switching poles a first air duct 26, the Isolating contact systems of the middle switching pole a second 27 and third 28 air duct and the isolating contact systems of the second outer switching poles shown on the right in FIG. 1 a fourth air duct 29 is assigned. So everyone serves of the four air channels for cooling two on top of each other arranged disconnect contact systems 8.
  • each run two of the air guiding elements are essentially aligned. So are the first 26 and the third 28 air duct each from the first 13 and third 15 air guiding element of one of the two air guiding devices 9 and the second 27 and the fourth 29 air duct are each of the second 14 and fourth 16 air guide one of the two air guiding devices 9 is formed. Because the bottom or upper lamella blocks of the neighboring ones Switch poles next to each other in the installed position of the circuit breaker are arranged, which are each on a common carrier 10 held, first 13 and second 14 and third 15 and fourth 16 air guiding elements essentially mirror-symmetrical arranged.
  • each of the air channels 26, 27, 28 and 29 is in a lower one Channel section 36 and an upper channel section 37 divided.
  • the inflow area 40 of the upper channel section 37 tapers in the flow direction.

Landscapes

  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP04090171A 2003-06-04 2004-05-03 Dispositif de guidage d'air pour refroidir un composant d'un interrupteur Withdrawn EP1484776A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10326355 2003-06-04
DE10326355A DE10326355B3 (de) 2003-06-04 2003-06-04 Luftleiteinrichtung zum Kühlen eines Schalterteiles eines elektrischen Schalters

Publications (2)

Publication Number Publication Date
EP1484776A2 true EP1484776A2 (fr) 2004-12-08
EP1484776A3 EP1484776A3 (fr) 2007-02-21

Family

ID=33154606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04090171A Withdrawn EP1484776A3 (fr) 2003-06-04 2004-05-03 Dispositif de guidage d'air pour refroidir un composant d'un interrupteur

Country Status (3)

Country Link
US (1) US7199318B2 (fr)
EP (1) EP1484776A3 (fr)
DE (1) DE10326355B3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2413338A1 (fr) * 2010-07-30 2012-02-01 Siemens Aktiengesellschaft Commutateur doté d'un dispositif de dissipation de la chaleur
EP2983258A1 (fr) * 2014-08-08 2016-02-10 General Electric Company Équipement électrique et procédé de fabrication

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037802A1 (de) * 2005-08-03 2007-02-08 Siemens Ag Schaltfeld mit Luftleitelement
US7336477B2 (en) * 2005-08-22 2008-02-26 Eaton Corporation Electrical switching apparatus and heat sink therefor
IT1395698B1 (it) * 2009-05-28 2012-10-19 Abb Spa Dispositivo di raffreddamento per un interruttore, ed interruttore comprendente tale dispositivo.
US9450387B2 (en) * 2012-04-20 2016-09-20 Schneider Electric USA, Inc. Passive arc protection for main breaker line side power conductors
US9007746B2 (en) * 2012-12-12 2015-04-14 Siemens Industry, Inc. Modular draw out fan module with chimney design for cooling components in low voltage switchgear

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839269A1 (de) * 1988-11-21 1990-05-23 Licentia Gmbh Niederspannungsleistungsschalter mit abgeschotteten polbahnen
DE29601769U1 (de) * 1996-02-02 1997-06-12 Aeg Sachsenwerk Gmbh, 93055 Regensburg Schaltgerät mit wärmeabgebenden Bauteilen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359724A (en) * 1965-08-03 1967-12-26 Bristol Siddeley Engines Ltd Cooling means in combustors for gas turbine engines
US4639564A (en) * 1985-05-01 1987-01-27 Westinghouse Electric Corp. Circuit breaker with arc chamber vent
US4777806A (en) * 1987-08-05 1988-10-18 Stanely Knight Corporation Refrigerated display island
JP3166890B2 (ja) * 1994-05-24 2001-05-14 富士電機株式会社 回路遮断器の消弧装置
US6037555A (en) * 1999-01-05 2000-03-14 General Electric Company Rotary contact circuit breaker venting arrangement including current transformer
US6479781B1 (en) * 2000-06-23 2002-11-12 General Electric Company Arc chute assembly for circuit breaker mechanisms
US6624375B2 (en) * 2001-04-04 2003-09-23 Siemens Energy & Automation, Inc. Wire lug/arc vent barrier molded case circuit breaker
US6924721B2 (en) * 2003-07-14 2005-08-02 Eaton Corporation Gas segregator barrier for electrical switching apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839269A1 (de) * 1988-11-21 1990-05-23 Licentia Gmbh Niederspannungsleistungsschalter mit abgeschotteten polbahnen
DE29601769U1 (de) * 1996-02-02 1997-06-12 Aeg Sachsenwerk Gmbh, 93055 Regensburg Schaltgerät mit wärmeabgebenden Bauteilen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2413338A1 (fr) * 2010-07-30 2012-02-01 Siemens Aktiengesellschaft Commutateur doté d'un dispositif de dissipation de la chaleur
WO2012013440A1 (fr) * 2010-07-30 2012-02-02 Siemens Aktiengesellschaft Appareil de coupure comprenant un dispositif de dissipation de la chaleur
US9799462B2 (en) 2010-07-30 2017-10-24 Siemens Aktiengesellschaft Switching device with a heat extraction apparatus
EP2983258A1 (fr) * 2014-08-08 2016-02-10 General Electric Company Équipement électrique et procédé de fabrication
CN105392325A (zh) * 2014-08-08 2016-03-09 通用电气公司 电气设备和制造方法
CN105392325B (zh) * 2014-08-08 2020-01-21 Abb瑞士股份有限公司 电气设备和制造方法

Also Published As

Publication number Publication date
US20050006350A1 (en) 2005-01-13
DE10326355B3 (de) 2005-02-03
US7199318B2 (en) 2007-04-03
EP1484776A3 (fr) 2007-02-21

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