WO1996041511A1 - Repartition de chaleur destinee a un coffret - Google Patents

Repartition de chaleur destinee a un coffret Download PDF

Info

Publication number
WO1996041511A1
WO1996041511A1 PCT/US1996/006468 US9606468W WO9641511A1 WO 1996041511 A1 WO1996041511 A1 WO 1996041511A1 US 9606468 W US9606468 W US 9606468W WO 9641511 A1 WO9641511 A1 WO 9641511A1
Authority
WO
WIPO (PCT)
Prior art keywords
enclosure
cavity
heat
heat generating
external environment
Prior art date
Application number
PCT/US1996/006468
Other languages
English (en)
Inventor
G. Paul Buchner
Original Assignee
Solar Turbines Incorporated
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 Solar Turbines Incorporated filed Critical Solar Turbines Incorporated
Publication of WO1996041511A1 publication Critical patent/WO1996041511A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
    • H05K7/206—Air circulating in closed loop within cabinets wherein heat is removed through air-to-air heat-exchanger

Definitions

  • This invention relates to heat generated by an electronic control assembly contained within a totally closed enclosure. Heat is distributed and dissipated so as to provide effective cooling of the heat generating components.
  • Auxiliary equipment being driven by power equipment such a gas turbine engines require controls to functionally control and monitor the operation of the auxiliary equipment and the power source.
  • Such controls are conventionally housed within an enclosure.
  • these enclosures are open to atmosphere by vents and cooling openings. It has been normal practice to utilize fans to draw atmospheric air into the enclosures, circulate the air through the enclosure and cool the components within.
  • the application of such enclosures in severe applications, such as, in the desert and near salt containing bodies of water increases the possibility of contaminates entering the enclosures.
  • the results being reduced life of the equipment within the enclosure. Attempts have been made to install filters in such hazardous application; however, after a given period of time the filters become clogged requiring replacement and/or cleaning. Failure to prevent such clogging will either reduce the cooling effectiveness or again result in the containments entering the enclosure and causing premature failure of the equipment within the enclosure.
  • the present invention is directed to overcome one or more of the problems as set forth above.
  • an enclosure is comprised of a plurality of structural members, a cavity formed within the plurality of structural members and a rack positioned within the cavity.
  • a heat generating device is positioned within the rack and forms a heat generating portion within the cavity and the remainder of the cavity generally forms a heat absorbing portion.
  • a fan mechanism is operatively interposed the rack and the heat generating devices. During operation of the fan mechanism, a circulation of a cooling media between the heat generating portion and the heat absorbing portion within the cavity occur.
  • FIG. 1 is a pictorial view of an enclosure embodying the present invention
  • FIG. 2 is a sectional view taken along line 2-2 of FIG. 1;
  • FIG. 3 is a sectional view taken along line 3-3 of FIG. 1;
  • FIG. 4 is an enlarged exploded view of a rack embodying the present invention.
  • FIG. 5 is an electrical diagram for a control circuit. Best Mode for Carrying Out the Invention
  • an enclosure 10 is made of a material having a heat absorbing and a heat dissipating characteristic, which in this application is steel.
  • the enclosure 10, during operation defines an outside heat dissipating surface 12 and an inside heat absorbing surface 14.
  • the enclosure 10, being formed by a plurality of structural members 16, includes a generally rectangular back portion 18 a pair of end portions 20 being sealingly attached to the back portion 18 at an end 22 thereof.
  • a top portion 24 is sealingly attached to the back portion 18 and the pair of end portions 20.
  • a bottom portion 26 is sealingly attached to the back portion 18 and the pair of end portions 20.
  • a front portion 28 includes a door 30, which in this application includes a pair of doors 32. The doors are pivotally mounted to the front portion 28 and are sealed therewith.
  • the pair of doors 32 have an open position, not shown, and a close position 36. In the close position 36, the pair of doors 32 are in sealing engagement with the front portion 28 and form a generally sealed cavity 38 within the enclosure 10. However, as an alternative the pair of doors 32 could replace the front portion 28, be pivotally mounted to the pair of end portions 20 and would be in sealing engagement with the top portion 24, the bottom portion 26 and the pair of end portions 20. Attached to the inside of the enclosure 10 is a plurality of terminal strips 40. The plurality of terminal strips 40 are removably attached to the back portion 18 and the end portions 20 in a conventional manner. Each of the strips 40 are systematically positioned within the enclosure to provide a preestablished spacing, designated by the arrows 42, between a plurality of electrical modules 44.
  • modules 44 which extend into the cavity 38 include voltage regulators, terminal blocks, relays, etc.
  • a plurality of racks 46 having additional electrical modules 44 attached thereto.
  • the racks 46 are positioned above the plurality of terminal strips 40 near the top of the enclosure 10.
  • a programmable logic controller section (PLC) 48 Positioned within a portion of the racks 46 and extending into the cavity 38 is a programmable logic controller section (PLC) 48 and positioned within another portion of the racks 46 is a line synchronization module section (LSM) 52.
  • PLC programmable logic controller section
  • LSM line synchronization module section
  • Each of the racks 46 includes a first member 58, a pair of side members 60 being attached to the front member 58, a top member 62 positioned in contacting relationship above the front member 58 and the pair of side members 60 and a bottom member 64 positioned in contacting relationship below the front member 58 and the pair of side members 60.
  • the side member 60 are made from a metallic impervious sheet
  • the top member 62 is made from a metallic sheet and has a plurality of openings 66 defined therein being spaced a preestablished distance one from another.
  • the bottom member 64 is made from a metallic sheet having a plurality of passages 68 therein.
  • the passages 68 can be constructed by making opening or holes or louvers. Attached to the top member 62 and relatively positioned about each of the plurality of openings 66 is a variable speed fan mechanism 70.
  • a portion of the electrical modules 44 are heat generating devices 80.
  • the cavity 38 can generally be divided into a heat generating portion 82 and a heat absorbing portion 84.
  • the heat generating portion 82 is generally positioned near the top of the enclosure 10 and the heat absorbing portion 84 is generally positioned below the heat generating portion 82.
  • the heat generating portion 82 could be positioned at any position within the cavity 38 such as near the bottom, or in any one of a large variety of positions too numerous to describe.
  • the heat absorbing portion 84 would be position in a location of the cavity 38 away from or between the heat generating devices 80.
  • the programmable logic controller section (PLC) 48 and the line synchronization module section (LSM) 52 are examples of the electrical modules 44 positioned within the heat generating portion 82.
  • Examples of the heat absorbing portion 84 would be the spacing 42 between the terminal strips 40, the pair of doors 32 and the top portion 24.
  • the fan mechanisms 70 are thermostatically controlled.
  • the control circuit 90 is best shown in FIG. 5 and is positioned within the cavity 38.
  • the circuit 90 includes a power source 92 being electrically connected to one of the terminal blocks 44 and having a circuit breaker 94 therebetween, a temperature sensing device 96 electrically interposed the terminal block 44 and the fan mechanisms 70.
  • the circuit 90 is completed by the other side of the fan mechanisms 70 being electrically connected to the power source 92.
  • the temperature sensing device 96 can be conditioned to either fully actuated the fan mechanisms 70 or to modulate the actuation of the fan mechanisms 70 depending on the actual temperature within the cavity 38.
  • the enclosure 10 is positioned in contacting relationship with the external environment and the outside heat dissipating surface 12 dissipates heat to the external environment as the inside heat absorbing surface absorbs heat from the air, in this application but could be any suitable cooling media, being circulated around the heat generating devices 80.
  • the fan mechanisms 70 which are attached to the top member 62 draw air from within the cavity 38 through the passages 68 in the bottom member 64, along and around the programmable logic controller section 48 and the line synchronization module section 52, thus, absorbing heat from the heat generating devices 80 within the heat generating portion 82 of the cavity 38. The air is thus passed through the fan mechanisms 70 and circulated to the heat absorbing portion 84 of the cavity 38.
  • the inside heat absorbing surface 14 of the enclosure 10 absorbs the heat and the heat is transmitted through the material of which the enclosure 10 is made to the outside heat dissipating surface 12 of the enclosure 10 wherein the heat is absorbed into the external environment.
  • the internal environment within the cavity 38 within the enclosure 10 is generally sealed from the external environment in which the enclosure 10 is positioned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

Les coffrets antérieurs comprenaient un système servant à faire circuler l'air à partir d'un environnement externe à travers un système de filtrage utilisé pour refroidir les composants générateurs de chaleur à l'intérieur du coffret. Le coffret (10) décrit dans cette invention comprend une pluralité d'éléments structuraux (16) qui définissent une cavité (38) ayant un milieu interne protégé de l'environnement extérieur. La cavité (38) se divise en une partie de génération thermique (82) et une partie d'absorption thermique (84) dotée d'un mécanisme de ventilation (70) destiné à faire circuler l'air entre la partie de génération thermique (82) et la partie d'absorption thermique (84). Ainsi, les dispositifs de génération thermique (80) à l'intérieur de la cavité (38) sont refroidis au moment où une surface d'absorption thermique (14) de la pluralité d'éléments structuraux (16) absorbe la chaleur du milieu interne et une surface de diffusion thermique (12) de la pluralité d'éléments structuraux (16) diffuse la chaleur vers l'environnement extérieur. En outre, étant donné que le milieu interne est protégé de l'environnement extérieur, les composants du coffret (10) sont protégés des agressions du milieu extérieur, telles que le sable, le sel et les impuretés.
PCT/US1996/006468 1995-06-07 1996-05-07 Repartition de chaleur destinee a un coffret WO1996041511A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47442695A 1995-06-07 1995-06-07
US08/474,426 1995-06-07

Publications (1)

Publication Number Publication Date
WO1996041511A1 true WO1996041511A1 (fr) 1996-12-19

Family

ID=23883485

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/006468 WO1996041511A1 (fr) 1995-06-07 1996-05-07 Repartition de chaleur destinee a un coffret

Country Status (1)

Country Link
WO (1) WO1996041511A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804906A1 (de) * 1998-02-07 1999-08-19 Loh Kg Rittal Werk Lüfter zum Anbau an ein Wandelement eines Schaltschrankes
EP1085272A2 (fr) * 1999-09-17 2001-03-21 Matsushita Seiko Co.Ltd. Elément chauffant avec un boítier de refroidissement et son procédé de commande
WO2006078665A2 (fr) * 2005-01-19 2006-07-27 General Electric Company Dispositif et procede de transfert de chaleur a partir d'appareils de commande

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007396A1 (fr) * 1978-06-28 1980-02-06 Siemens Aktiengesellschaft Dispositif de refroidissement pour unités de montage électriques disposées dans une boîte close
DE8702065U1 (de) * 1987-02-11 1987-05-21 Euroatlas GmbH für Umformertechnik und Optronik, 2800 Bremen Stromversorgungsgerät in Einschubbauweise
EP0312372A2 (fr) * 1987-10-15 1989-04-19 BICC Public Limited Company Systéme de refroidissement pour armoire électronique
US4840225A (en) * 1987-04-10 1989-06-20 Digital Equipment Corporation Heat exchange element and enclosure incorporating same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007396A1 (fr) * 1978-06-28 1980-02-06 Siemens Aktiengesellschaft Dispositif de refroidissement pour unités de montage électriques disposées dans une boîte close
DE8702065U1 (de) * 1987-02-11 1987-05-21 Euroatlas GmbH für Umformertechnik und Optronik, 2800 Bremen Stromversorgungsgerät in Einschubbauweise
US4840225A (en) * 1987-04-10 1989-06-20 Digital Equipment Corporation Heat exchange element and enclosure incorporating same
EP0312372A2 (fr) * 1987-10-15 1989-04-19 BICC Public Limited Company Systéme de refroidissement pour armoire électronique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MERIE HALDEMAN, SERGIO ZIMMERMAN: "fastbus rack alarms and limits", IEEE TRANSACTIONS ON NUCLEAR SCIENCE, vol. 33, no. 1, February 1986 (1986-02-01), NEW YORK, USA, pages 838 - 840, XP002012211 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804906A1 (de) * 1998-02-07 1999-08-19 Loh Kg Rittal Werk Lüfter zum Anbau an ein Wandelement eines Schaltschrankes
US6315656B1 (en) 1998-02-07 2001-11-13 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Fan for mounting on a wall member of a control cabinet
DE19804906C2 (de) * 1998-02-07 2002-10-02 Rittal Gmbh & Co Kg Lüfter zum Anbau an ein Wandelement eines Schaltschrankes
EP1085272A2 (fr) * 1999-09-17 2001-03-21 Matsushita Seiko Co.Ltd. Elément chauffant avec un boítier de refroidissement et son procédé de commande
EP1085272A3 (fr) * 1999-09-17 2002-07-24 Matsushita Seiko Co.Ltd. Elément chauffant avec un boítier de refroidissement et son procédé de commande
US6612365B1 (en) 1999-09-17 2003-09-02 Matsushita Electric Industrial Co., Ltd. Heating-element accommodating-box cooling apparatus and method of controlling the same
WO2006078665A2 (fr) * 2005-01-19 2006-07-27 General Electric Company Dispositif et procede de transfert de chaleur a partir d'appareils de commande
WO2006078665A3 (fr) * 2005-01-19 2007-01-04 Gen Electric Dispositif et procede de transfert de chaleur a partir d'appareils de commande

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