WO1994007351A1 - Unite de ventilation pour appareils electroniques - Google Patents

Unite de ventilation pour appareils electroniques Download PDF

Info

Publication number
WO1994007351A1
WO1994007351A1 PCT/DE1993/000893 DE9300893W WO9407351A1 WO 1994007351 A1 WO1994007351 A1 WO 1994007351A1 DE 9300893 W DE9300893 W DE 9300893W WO 9407351 A1 WO9407351 A1 WO 9407351A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan unit
fan
housing
unit according
fans
Prior art date
Application number
PCT/DE1993/000893
Other languages
German (de)
English (en)
Inventor
Kurt Balzer
Werner Gerlach
Axel CLEVER
Original Assignee
Siemens Aktiengesellschaft
CLEVER, Monika
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 Aktiengesellschaft, CLEVER, Monika filed Critical Siemens Aktiengesellschaft
Publication of WO1994007351A1 publication Critical patent/WO1994007351A1/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
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20172—Fan mounting or fan specifications
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H02B1/565—Cooling; Ventilation for cabinets

Definitions

  • the invention relates to a fan unit for electronic devices, in particular in electronic cabinets, the electronic devices having an air inlet opening on their underside and an air outlet opening on their top side, to which the fan unit located in a housing can be attached for forced ventilation.
  • Such a fan unit is known from EP-0 236 501 B1.
  • the electronic devices are implemented there by assemblies which are inserted next to one another in a subrack, the subracks in turn being accommodated one above the other in an electronics cabinet.
  • the fan units are arranged horizontally with several
  • the invention has for its object to provide a fan unit which can be flexibly adapted to the various conditions given by the cooling requirement and arrangement of the electronic devices.
  • the housing of the new fan unit of the type mentioned is designed so that an air supply to the housing from the rear, from below or from both directions is adjustable by a cover that can be placed either at openings on the bottom of the housing or the rear wall of the housing.
  • the invention has the advantage that in the case of an air supply from the rear only ambient air is supplied to each subrack, which has not yet flowed through any other subrack and is consequently not yet heated.
  • air can only be supplied from below
  • at least admixture of ambient air to the air already preheated by subracks arranged below the fan unit can be achieved with the same fan unit.
  • the fans are advantageously arranged in the fan unit in such a way that they can be replaced by the front after opening the front side of the housing during operation of the fan unit.
  • a fan monitoring unit is expediently provided, which detects faults in the Fan detected.
  • the speed of the fans or the temperature in the ventilated electronic device can be detected and evaluated in a simple manner.
  • a device arranged on the front of the housing for displaying detected faults is clearly visible to the operator.
  • the fan monitoring unit For easier maintenance of the fan monitoring unit itself, it can be replaced through the front of the housing without the fan unit having to be disconnected from the electronic device. A high availability is ensured by a redundant design of the fans. If there are three fans in the fan unit, if one fan fails, the air flow is still sufficient to cool the electronic device.
  • a horizontally running cable duct behind the front of the housing enables a hidden supply of cables to the electronic device.
  • the cable duct is accessible through a horizontally pivoting flap on the front of the housing to make it easier to lay the lines.
  • Metallic spring elements in the cable duct ensure good shield contacting of the cables.
  • the fan unit according to the invention can be used particularly advantageously for cooling an automation device in which the connections of the process inputs and outputs are located on the front of the electronic device above the cable duct.
  • FIG. 1 shows a sketch of an arrangement with a fan unit according to the invention in an electronics cabinet
  • FIG. 2 shows a fan unit in an electronics cabinet with a rear air supply duct
  • FIG. 3 shows a cross section through a fan unit
  • FIG. 4 shows a perspective view of the housing of the fan unit according to FIG. 3
  • FIG. 5 shows a fan
  • FIG. 6 shows a filter frame
  • FIG. 7 shows a blind cover.
  • a fan unit 1 is arranged between two subracks 2 and 3. Since the subracks 2 and 3 and the fan unit 1 are fixedly mounted on a rear wall 4, the fan unit 1 is set for air supply from below.
  • the supply air flow is indicated in FIG. 1 by an arrow 5. This air blows the fan unit 1 into the module carrier 3 and generates a vertically upward air flow in accordance with the arrows 6.
  • a fan unit 8 shown in broken lines in FIG. 1 can be provided become. A part of the supply air flow 5 is removed from the rack 3, in which in this way a vertically upward air flow according to the
  • Arrows 9 is generated. Another part is ambient air drawn in through an intermediate space 10 between the fan unit 1 and the subrack 2. It is thereby achieved that upper subracks do not receive cooling air that is preheated too much by lower subracks. On the other hand, if necessary, a stronger air flow 9 can be generated in the subrack 2 if the space 10 is dispensed with. In this case, the supply air 5 is drawn in directly from the rack 2.
  • a supply air duct 14 runs behind subracks 11 and 12, between which there is a fan unit 13.
  • the ventilator unit 13 can therefore advantageously be set to supply air from the rear.
  • the supply air indicated by an arrow 15 is thus not preheated by the subrack 12.
  • subrack 12 is cooled only on the basis of convection. Its exhaust air is discharged to the front by the fan unit 13, as indicated by an arrow 16 in FIG. 2.
  • a further fan unit 17, which is shown in broken lines in FIG. 2 can be attached above the subrack 11.
  • the fan unit 13 can additionally be set to supply air from below. The cooling air of the rack 11 would then be partially preheated by the rack 12.
  • FIG. 3 shows a cross section through a fan unit according to the invention.
  • a filter frame 19 is disengaged on the front 18 and placed down. Then, as shown in dashed lines in FIG. 3, it can be removed from the front of the fan unit. Now are also in the rear
  • the fan unit attached fans 20 accessible from the outside and can be replaced. Behind the upper part of the front 18 there is a cable duct 21 which is covered by a flap 22. Through this cable duct, lines (not shown in FIG. 3) to front plugs 23, e.g. B. an automation device. At the same time, the cable duct 21 also enables the front connector 23 to be swiveled away for removal or insertion.
  • the fans 20 are installed obliquely so that they can be passed under the cable duct 21 for replacement. They are locked in place by a lock 24.
  • a fan unit in FIG. 4 On the perspective illustration of a fan unit in FIG. 4, three installation locations 25 for fans can be seen. If any fan fails, this ensures that the electronic device can be operated (2-of-3 redundancy).
  • three LEDs 26 are arranged, which indicate the failure of one of the three fans. If two fans fail, the monitoring unit generates a signal that can lead to the control unit being switched off.
  • a voltage converter which is required for DC-operated fans, can be accommodated on a side wall 27 of the housing of the fan unit.
  • a free space 28 In addition to the discharge of the heated exhaust air from a subrack arranged under the fan unit, a free space 28 also serves as a swivel area for installing and removing subassemblies of the subrack.
  • the fan in FIG. 5 is provided for installation in the housing according to FIG. 4.
  • three contact pins 29 are attached, which establish the electrical connection of the fan when inserted into the housing and enable speed monitoring.
  • the fan is provided with a lock 30, which is used on the one hand to handle the fan during installation and removal and on the other hand is used to lock the fan in the installed state in the manner of a snap lock. The fans can therefore be easily replaced from the front of the fan unit.
  • the filter frame according to FIG. 6 is provided with openings 31 for air supply from the rear and openings 32 for air supply from below. If only one air supply is to be set from the rear, the openings 32 are closed with a cover 33, which is shown in broken lines in FIG. Otherwise a filter mat is inserted.
  • the blind cover in FIG. 7 is used to close the upper opening of the fan unit at the points where there are no modules in the rack. This means that even partially equipped subracks can be cooled with the fan unit.

Landscapes

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

Abstract

L'invention concerne une unité pour ventiler des appareils électroniques, notamment dans des armoires électroniques, les appareils électroniques comportant, en vue d'une ventilation forcée, un orifice d'admission d'air sur leur côté inférieur et un orifice de sortie d'air sur leur côté supérieur. Le boîtier de l'unité de ventilation est réalisé de manière à ce qu'une amenée d'air puisse s'effectuer au choix depuis l'arrière ou depuis le bas. Une conduite de câbles passant horizontalement est prévue derrière la face avant du boîtier, afin d'amener des lignes jusqu'aux prises avant d'un appareil d'automatisation. L'invention est utilisée dans les unités embrochables de ventilateur.
PCT/DE1993/000893 1992-09-24 1993-09-20 Unite de ventilation pour appareils electroniques WO1994007351A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG9212890.4U 1992-09-24
DE9212890U DE9212890U1 (de) 1992-09-24 1992-09-24 Lüftereinheit für elektronische Geräte

Publications (1)

Publication Number Publication Date
WO1994007351A1 true WO1994007351A1 (fr) 1994-03-31

Family

ID=6884114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1993/000893 WO1994007351A1 (fr) 1992-09-24 1993-09-20 Unite de ventilation pour appareils electroniques

Country Status (2)

Country Link
DE (1) DE9212890U1 (fr)
WO (1) WO1994007351A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933878A1 (fr) * 1998-01-27 1999-08-04 Lucent Technologies Inc. Système de refroidissement pour un appareil de télécommunication

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2165749C (fr) * 1995-12-20 2003-04-08 Paul D. Cochrane Materiel electronique comportant des passages de circulation d'air de refroidissement
DE19844643C1 (de) * 1998-09-29 2001-01-18 Siemens Nixdorf Inf Syst Vorrichtung zum automatischen Bremsen von sich drehenden Teilen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495545A (en) * 1983-03-21 1985-01-22 Northern Telecom Limited Enclosure for electrical and electronic equipment with temperature equalization and control
EP0236501A1 (fr) * 1984-11-15 1987-09-16 Fujitsu Limited Structure de refroidissement d'une etagere pour appareils electroniques
US5136464A (en) * 1990-04-20 1992-08-04 Kabushiki Kaisha Toshiba Housing structure for housing a plurality of electric components

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495545A (en) * 1983-03-21 1985-01-22 Northern Telecom Limited Enclosure for electrical and electronic equipment with temperature equalization and control
EP0236501A1 (fr) * 1984-11-15 1987-09-16 Fujitsu Limited Structure de refroidissement d'une etagere pour appareils electroniques
US5136464A (en) * 1990-04-20 1992-08-04 Kabushiki Kaisha Toshiba Housing structure for housing a plurality of electric components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933878A1 (fr) * 1998-01-27 1999-08-04 Lucent Technologies Inc. Système de refroidissement pour un appareil de télécommunication

Also Published As

Publication number Publication date
DE9212890U1 (de) 1993-03-11

Similar Documents

Publication Publication Date Title
EP0878991B1 (fr) Ossature d'armoire support de baies avec dispositif de ventilation
EP1844637B1 (fr) Dispositif pour refroidir des unites modulaires electroniques dans des armoires d'equipements et de reseau
EP1614333B1 (fr) Systeme de refroidissement pour armoires d'instruments et armoires reseau, et procede pour refroidir des armoires d'instruments et armoires reseau
EP1040738A1 (fr) Dispositif pour refroidir des composants electriques
DE10051643B4 (de) Haube für einen Lüfterfilter
EP1895824B1 (fr) Assemblage pour un appareil d'automatisation
WO2002075885A1 (fr) Installation de distribution electrique munie d'un dispositif de ventilation et dispositif de ventilation correspondant comportant deux elements de ventilation
DE29718687U1 (de) Schrank aus Metallblech
EP2747533A1 (fr) Armoire électrique électronique avec refroidissement
DE102009057129A1 (de) Belüftungsvorrichtung für Komponenten eines Elektronik- oder Computerschranks
EP0176744A1 (fr) Dispositif pour le refroidissement de modules électroniques
DE602006000099T2 (de) Kühlungssystem und Verfahren für ein elektronisches Gerät
EP2047729B1 (fr) Dispositif avec échangeur de chaleur air-air pour fournir de l'air de refroidissement à une armoire électrique
DE212016000058U1 (de) An einer Schiene anbringbares Steuersystem mit verbesserter Kühlung
DE2613366A1 (de) Lueftungsanordnung fuer in gestellen angeordnete, waermeerzeugende baugruppen
WO1994007351A1 (fr) Unite de ventilation pour appareils electroniques
EP4310867A1 (fr) Banc de charge
DE10038821C2 (de) Lüftungsgitter
EP0089401A2 (fr) Boîte d'équipement à ventilation forcée
EP0647998B1 (fr) Tableau de distribution avec un canal de refroidissement entre les circuits principaux et les circuits auxiliaires
EP4025840B1 (fr) Arrangement d'échangeur de chaleur
DE9014160U1 (de) Lüftereinheit
EP0739158B1 (fr) Dispositif pour fixer un module de connexion sur un support et armoire avec ledit dispositif
DE3438206A1 (de) Anordnung zur waermeableitung bei geraeteeinsaetzen der nachrichtentechnik
DE102004008513A1 (de) Lüftersystem für Stromverteileranlagen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase