EP3109880A1 - Medium- or high voltage pole part with at least one heat sink element - Google Patents

Medium- or high voltage pole part with at least one heat sink element Download PDF

Info

Publication number
EP3109880A1
EP3109880A1 EP15173142.9A EP15173142A EP3109880A1 EP 3109880 A1 EP3109880 A1 EP 3109880A1 EP 15173142 A EP15173142 A EP 15173142A EP 3109880 A1 EP3109880 A1 EP 3109880A1
Authority
EP
European Patent Office
Prior art keywords
heat sink
pole part
shaped
sink element
high voltage
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Withdrawn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
EP15173142.9A
Other languages
German (de)
French (fr)
Inventor
Wenkai Dr. Shang
Dietmar Dr. Gentsch
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.)
ABB Schweiz AG
Original Assignee
ABB Schweiz 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 ABB Schweiz AG filed Critical ABB Schweiz AG
Priority to EP15173142.9A priority Critical patent/EP3109880A1/en
Priority to CN201620620101.3U priority patent/CN206236604U/en
Publication of EP3109880A1 publication Critical patent/EP3109880A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H01H2009/523—Cooling of switch parts by using heat pipes
    • 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
    • H01H2009/526—Cooling of switch parts of the high voltage switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/6606—Terminal arrangements
    • H01H2033/6613—Cooling arrangements directly associated with the terminal arrangements

Definitions

  • the invention relates to a medium- or high voltage pole part with at least one heat sink element, according to the preamble of claim 1.
  • the temperature rise especially in the region of the contact terminal has to be limited.
  • a pole part of a circuit breaker arrangement with a heat sink element arranged near the upper electrical contact terminals is disclosed in EP 2 720 244 A1 .
  • This heat sink element is additionally heavy and compact with a relatively high mass, in order to fulfill a double function, as a heat sink, and as a bouncing absorber for absorbing shock energy from the movement of the moving contact in the end position.
  • the function as heat sink near the upper contact terminal is advantageous, in order to dissipate away the heat, which occurs there by the effect of electrical power loss of electrical conducting part and transition resistance between electrical contacting parts.
  • the known heat sink element which is very solid and heavy has its main function, in compensation of bouncing energy. Therefore, the installion is much more complex than necessary.
  • the invention is, that the heat sink element is U-shaped in such, that it is mountable by shifting and clamping it on the pole part body, from the contact face side of the pole part.
  • heat sink is used on top of the pole part, as shown in the aforesaid EP 2 720 244 A1 .
  • heat will be dissipated in a much more effective way, by the contour structures, which are positioned closely at that point of the vacuum interrupter pole part, where heat occurs, for example by electrical transition resistance.
  • the assembly of the heat sink elements on the pole part is much easier.
  • the heat sink element can be retrofitted much easier.
  • a preferably thin U shaped heat sink is fixed to the contact arms of the terminals of the vacuum circuit breaker pole part. This heat sink will get the local power loss dissipated to the surrounding of the pole part of the vacuum circuit breaker.
  • multiple plate that means multiple layered structure can be used in order to increase the heat dissipation, like decribed in the following text.
  • U-shaped heat pipe can also be used.
  • slots, holes, ribs, cubic, cylinder, radius ribs features could be added into this U shaped part in order to enforce the heat dissipation of this part.
  • U-shaped heat sink element consist of two opposing flanks which are both fixed at a bottom element, so that the so structured heat sink element is a one piece element. So it surrounds the pole part closely for good heat transition.
  • each of the opposing flanks of the U-shaped heat sink element consist of at least two layers arranged spaced apart, and that the at least two layers per flank are fixed at the common bottom element.
  • a final advantageous embodiment is, that the bottom element is provided with a c-formed recess in such, that the c-conture of this recess is arrangend partly around the external wall of the electrical contact terminal.
  • the Invention is used in vacuum interrupter arrangements in such, that the vacuum interrupter is mounted on a frame, with medium- or high voltage pole parts according to one of the aforesaid claims, wherein the heat sink elements are U-shaped.
  • the heat sink elements are provided furthermore with a bridge element at the open side of the U-shape contour, in order to form the heat sink element finally into a O-shaped contour, surrounding the pole part around the main axis.
  • a bridge element at the open side of the U-shape contour, in order to form the heat sink element finally into a O-shaped contour, surrounding the pole part around the main axis.
  • two U- or L-shaped contour could be fixed together around the contact arm, to form this O-shaped contour.
  • the pole part is provided with such heat sink element at both contact terminals, the upper contact terminal and the lower contact terminal.
  • a three phase arrangement 1 of three pole parts on a circuit breaker are provided with an U-shaped heat sink element 2 at each electrical contact or terminal arm 3.
  • the U-shape is created as such, that the heat sink element can be inserted from the front side, that means from the contact face side of the pole parts of the circuit breaker.
  • the U-shaped heat sink element can be fixed to the contact arm of a vacuum circuit breaker pole part. This heat sink will get the local power loss dissipated to the surrounding of the pole part of the vacuum circuit breaker.
  • FIG. 2 shows a further detailed heat sink element 2, like defined by the further depending claims in a special advantageous embodiment. So the heat sink element 2 will be inserted on the terminals of the pole part in the same way, like mentioned above. Here is shown, that the flanks of the heat sink element are splitted into two layers 2' and 2" each. This multiplies the active heat emitting or dissipating surface. The fact that the layers are arranged as such, that in the mounted position, a vertically oriented slot will be between the layers, this will support cooling convection between them by normally vertically upstreaming convention of the air.
  • FIG 3 An alternative, or a combinable further embodiment of the heat sink is shown in figure 3 .
  • the flanks are provided with a number of parallel cooling slots 4, which are arrangend here in a L-shape. This also supports cooling by convenction. This slot arrangement can also be combined with the double or multilayered flanks of the heat sink element, as shown in figure 2 .
  • U-shaped heat pipe can also be used.
  • the contact surface between them should be machined properly with good mechanical fit to each other, which results in low transit thermal resistance.
  • Possible heat conductive paste could be also used to have a low thermal restistance in between.
  • the surface area should be also dimensioned so, that the heat could be transferred properly.
  • Last but not least, painting or coating with an insulating material on the surface of the heat sink elements can be also used for increase the thermal radiation and improve the dielectric performance.
  • Figure 4 shows once more in detail an embodiment of the heat sink element 2.
  • a half round or better a C-formed recess 5, which is placed over the contact arms 3, like shown in figure 1 .

Abstract

The invention relates to a_Medium- or high voltage pole part with at least one heat sink element around or ontop of at least one of the electrical contact terminals of the pole part, according to the preamble of claim 1. In order to to create a pole part with a heat sink construction, which effects a high heat transportation away from the electrical terminal, which are light and easy to attach, the invention is, that the heat sink element (2) is U-shaped or L-shaped in such, that it is mountable by shifting and clamping it on the pole part body, from the contact face side of the pole part (1).

Description

  • The invention relates to a medium- or high voltage pole part with at least one heat sink element, according to the preamble of claim 1.
  • For air insulated and gas insulated switchgears, the temperature rise especially in the region of the contact terminal has to be limited.
  • A pole part of a circuit breaker arrangement with a heat sink element arranged near the upper electrical contact terminals is disclosed in EP 2 720 244 A1 . This heat sink element is additionally heavy and compact with a relatively high mass, in order to fulfill a double function, as a heat sink, and as a bouncing absorber for absorbing shock energy from the movement of the moving contact in the end position.
  • The function as heat sink near the upper contact terminal is advantageous, in order to dissipate away the heat, which occurs there by the effect of electrical power loss of electrical conducting part and transition resistance between electrical contacting parts.
  • The known heat sink element, which is very solid and heavy has its main function, in compensation of bouncing energy. Therefore, the installion is much more complex than necessary.
  • It is the object of the invention to create a pole part with a heat sink construction, which effects a high heat transportation away from the electrical terminal, which are light and easy to attach.
  • This problem has been overcome by the features of the invention.
  • The invention is, that the heat sink element is U-shaped in such, that it is mountable by shifting and clamping it on the pole part body, from the contact face side of the pole part.
  • Usually only a heat sink is used on top of the pole part, as shown in the aforesaid EP 2 720 244 A1 . With the invention, heat will be dissipated in a much more effective way, by the contour structures, which are positioned closely at that point of the vacuum interrupter pole part, where heat occurs, for example by electrical transition resistance. Furthermore, the assembly of the heat sink elements on the pole part is much easier. Furthermore, the heat sink element can be retrofitted much easier.
  • A preferably thin U shaped heat sink is fixed to the contact arms of the terminals of the vacuum circuit breaker pole part. This heat sink will get the local power loss dissipated to the surrounding of the pole part of the vacuum circuit breaker.
  • As futher embodiment, multiple plate, that means multiple layered structure can be used in order to increase the heat dissipation, like decribed in the following text.
  • Furthermore the U-shaped heat pipe can also be used.
  • In order to increase the heat dissipation, slots, holes, ribs, cubic, cylinder, radius ribs features could be added into this U shaped part in order to enforce the heat dissipation of this part.
  • A further advantageous embodiment is given by that the U-shaped heat sink element consist of two opposing flanks which are both fixed at a bottom element, so that the so structured heat sink element is a one piece element. So it surrounds the pole part closely for good heat transition.
  • According to the above already given feature, an further embodiment ist, that each of the opposing flanks of the U-shaped heat sink element consist of at least two layers arranged spaced apart, and that the at least two layers per flank are fixed at the common bottom element.
  • A final advantageous embodiment is, that the bottom element is provided with a c-formed recess in such, that the c-conture of this recess is arrangend partly around the external wall of the electrical contact terminal.
  • The Invention is used in vacuum interrupter arrangements in such, that the vacuum interrupter is mounted on a frame, with medium- or high voltage pole parts according to one of the aforesaid claims, wherein the heat sink elements are U-shaped.
  • In an alternative embodiment the heat sink elements are provided furthermore with a bridge element at the open side of the U-shape contour, in order to form the heat sink element finally into a O-shaped contour, surrounding the pole part around the main axis. As alternative two U- or L-shaped contour could be fixed together around the contact arm, to form this O-shaped contour.
  • In a further advantageous embodiment, the pole part is provided with such heat sink element at both contact terminals, the upper contact terminal and the lower contact terminal.
  • An embodiment of the invention is shown in the drawings.
    • Figure 1: Perspective view on a three phase circuit breaker arrangement from top and bottom view, showing the position of the heat sink elements in different designs.
    • Figure 2: Perspective view to a circuit breaker arrangement with view on heat sink elements in detail
    • Figure 3: Detailed perspective view on a heat sink element with slots.
    • Figure 4: Detailed persepective view on a heat sink element.
  • Like shown in figure 1, a three phase arrangement 1 of three pole parts on a circuit breaker are provided with an U-shaped heat sink element 2 at each electrical contact or terminal arm 3. The U-shape is created as such, that the heat sink element can be inserted from the front side, that means from the contact face side of the pole parts of the circuit breaker.
  • The U-shaped heat sink element can be fixed to the contact arm of a vacuum circuit breaker pole part. This heat sink will get the local power loss dissipated to the surrounding of the pole part of the vacuum circuit breaker.
  • Figure 2 shows a further detailed heat sink element 2, like defined by the further depending claims in a special advantageous embodiment. So the heat sink element 2 will be inserted on the terminals of the pole part in the same way, like mentioned above. Here is shown, that the flanks of the heat sink element are splitted into two layers 2' and 2" each. This multiplies the active heat emitting or dissipating surface. The fact that the layers are arranged as such, that in the mounted position, a vertically oriented slot will be between the layers, this will support cooling convection between them by normally vertically upstreaming convention of the air.
  • An alternative, or a combinable further embodiment of the heat sink is shown in figure 3. The flanks are provided with a number of parallel cooling slots 4, which are arrangend here in a L-shape. This also supports cooling by convenction. This slot arrangement can also be combined with the double or multilayered flanks of the heat sink element, as shown in figure 2.
  • As a further step, U-shaped heat pipe can also be used.
  • In order to increase the heat dissipation, further slots, holes, ribs, cubic, cylinder, radius ribs features could be added into this U shaped heat sink element.
  • In order to have a good heat transfer between the contact arm and the heatsink, the contact surface between them should be machined properly with good mechanical fit to each other, which results in low transit thermal resistance. Possible heat conductive paste could be also used to have a low thermal restistance in between. The surface area should be also dimensioned so, that the heat could be transferred properly.
  • As alternative a L-shaped heatsink by using half of the U-shaped heat sink could be also connected to the contact arm.
  • Last but not least, painting or coating with an insulating material on the surface of the heat sink elements can be also used for increase the thermal radiation and improve the dielectric performance.
  • Figure 4 shows once more in detail an embodiment of the heat sink element 2. In the area in front is shown a half round or better a C-formed recess 5, which is placed over the contact arms 3, like shown in figure 1.
    • Numbering:
    • 1
    three phase arrangement
    2
    heat sink element
    2'
    layer of the flanks of the heat sink element
    2"
    further layer of the flanks of the heat sink element
    3
    contact arm(s)
    4
    cooling ribs, or slots
    5
    C-formed recess

Claims (10)

  1. Medium- or high voltage pole part with at least one heat sink element around or ontop of at least one of the electrical contact terminals of the pole part,
    characterized in that the heat sink element (2) is U-shaped or L-shaped in such, that it is mountable by shifting and clamping it on the pole part body, from the contact face side of the pole part (1).
  2. Medium- or high voltage pole part according to claim 1,
    characterized in that the U-shaped or L-shaped heat sink element (2) consist one or two opposing flanks which are both fixed at a middle element, so that the so structured heat sink element is a one piece element.
  3. Medium- or high voltage pole part according to claim 1 or 2,
    characterized in that each of the opposing flanks of the U-shaped heat sink element (2) consist of at least two layers (2', 2") arranged spaced apart, and that the at least two layers per flank are fixed at the common middle element.
  4. Medium- or high voltage pole part according to claim 1 or 2,
    characterized in that the middle element is provided with a C-formed recess (5) in such, that the C-contour of this recess is arrangend partly around the external wall of the electrical contact terminal.
  5. Medium or high voltage pole part according to claim 1 or 2,
    characterized in one or two U- and L-shaped parts are fixed together.
  6. Vacuum interrupter pole part, mounted on a frame,
    with medium- or high voltage pole part according to one of the aforesaid claims 1 to 5, wherein the heat sink elements are U-shaped and/or L-shaped.
  7. Vacuum interrupter arrangement mounted on a frame,
    with medium- or high voltage pole part according to one of the aforesaid claims 1 to 5, wherein the heat sink element is provided furthermore with a bridge element at the open side of the U-shape contour, in order to form the heat sink element finally into a O-shaped contour, surrounding the pole part around the main axis.
  8. Vacuum interrupter arrangement, mounted on a frame, with medium- or high voltage pole part according to one of the aforesaid claims 1 to 5, wherein the heat sink element is provided with two U-shaped and/or L-shaped contoures, fixed together in such, that they form an O-shaped contoure.
  9. Vacuum interrupter arrangement according to one of the claims 1 to 8, characterized in that the pole part is provided with such heat sink element at both contact terminals, the upper contact terminal and the lower contact terminal.
  10. Vacuum interrupter arrangement according to one of the claims 1 to 9, characterized in that the heat sink element is coated or painted with a in isulating material on the surface in order to cause a better heat radiation and a better dielectric performance.
EP15173142.9A 2015-06-22 2015-06-22 Medium- or high voltage pole part with at least one heat sink element Withdrawn EP3109880A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15173142.9A EP3109880A1 (en) 2015-06-22 2015-06-22 Medium- or high voltage pole part with at least one heat sink element
CN201620620101.3U CN206236604U (en) 2015-06-22 2016-06-21 Medium-pressure or high pressure electrod assembly, vacuum circuit breaker electrod assembly and vacuum breaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15173142.9A EP3109880A1 (en) 2015-06-22 2015-06-22 Medium- or high voltage pole part with at least one heat sink element

Publications (1)

Publication Number Publication Date
EP3109880A1 true EP3109880A1 (en) 2016-12-28

Family

ID=53488195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15173142.9A Withdrawn EP3109880A1 (en) 2015-06-22 2015-06-22 Medium- or high voltage pole part with at least one heat sink element

Country Status (2)

Country Link
EP (1) EP3109880A1 (en)
CN (1) CN206236604U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11842877B2 (en) 2021-01-27 2023-12-12 Abb Schweiz Ag Electric pole part apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1107409A1 (en) * 1999-12-01 2001-06-13 Kabushiki Kaisha Toshiba Switchgear and method of manufacturing thereof
WO2009074016A1 (en) * 2007-12-07 2009-06-18 Abb Technology Ltd. Heat dissipating means for circuit-breaker and circuit-breaker with such heat dissipating means
EP2418666A1 (en) * 2010-08-13 2012-02-15 ABB Technology AG Electrical contact arrangement, especially for an air insulated medium voltage circuit breaker
EP2720244A1 (en) 2012-10-11 2014-04-16 ABB Technology AG A pole part of a circuit-breaker arrangement with a heat sink element
EP2784796A1 (en) * 2013-03-25 2014-10-01 ABB Technology AG Gas cooler for a medium voltage switchgear assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1107409A1 (en) * 1999-12-01 2001-06-13 Kabushiki Kaisha Toshiba Switchgear and method of manufacturing thereof
WO2009074016A1 (en) * 2007-12-07 2009-06-18 Abb Technology Ltd. Heat dissipating means for circuit-breaker and circuit-breaker with such heat dissipating means
EP2418666A1 (en) * 2010-08-13 2012-02-15 ABB Technology AG Electrical contact arrangement, especially for an air insulated medium voltage circuit breaker
EP2720244A1 (en) 2012-10-11 2014-04-16 ABB Technology AG A pole part of a circuit-breaker arrangement with a heat sink element
EP2784796A1 (en) * 2013-03-25 2014-10-01 ABB Technology AG Gas cooler for a medium voltage switchgear assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11842877B2 (en) 2021-01-27 2023-12-12 Abb Schweiz Ag Electric pole part apparatus

Also Published As

Publication number Publication date
CN206236604U (en) 2017-06-09

Similar Documents

Publication Publication Date Title
US7881033B2 (en) High-voltage system and high-power circuit breaker with cooling
US20060102618A1 (en) High voltage ciruit breaker with cooling
US10991533B2 (en) Medium voltage breaker conductor with an electrically efficient contour
KR20110041439A (en) Pole part of a medium-voltage or high-voltage switchgear assembly, and method for its production
EP2658359B1 (en) Thermal separation of electronic control chassis heatsink fins
KR101072419B1 (en) Vacuum Circuit Breaker
US20050007742A1 (en) High-power switchgear with cooling rib arrangement
EP3334254B1 (en) Electric driver and illumination device
US20100181291A1 (en) Pole part of a medium-voltage switching device
US20160190032A1 (en) Wiring board and semiconductor package including wiring board
WO2013179772A1 (en) Switching unit or switching gear
US20100134983A1 (en) Electric memory module with cooling bodies
KR20220050888A (en) current feedthrough
EP3109880A1 (en) Medium- or high voltage pole part with at least one heat sink element
CA2954315C (en) Electrical component having an electrically conductive central element
JP4781178B2 (en) Power switchgear
CA2633906A1 (en) Arrangement having at least one electronic component
US10056740B2 (en) Gas cooler for a medium voltage switchgear assembly
JP6316039B2 (en) switchboard
CN113170597A (en) Device for cooling a busbar
US10499514B2 (en) Vehicular control device
US10939586B2 (en) Heat exchanger structure for a rack assembly
EP2983261A1 (en) Bus bar with integrated heat pipe
CN204614697U (en) The radiator of vacuum circuit-breaker and vacuum circuit-breaker thereof
KR102515088B1 (en) Assembly of Semiconductor Device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170628

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210225

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20230214