GB2202681A - Cabinet for electronic equipment - Google Patents
Cabinet for electronic equipment Download PDFInfo
- Publication number
- GB2202681A GB2202681A GB08803045A GB8803045A GB2202681A GB 2202681 A GB2202681 A GB 2202681A GB 08803045 A GB08803045 A GB 08803045A GB 8803045 A GB8803045 A GB 8803045A GB 2202681 A GB2202681 A GB 2202681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cabinet
- outlet
- inlet
- blocking
- air
- 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.)
- Pending
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
- H05K7/20554—Forced ventilation of a gaseous coolant
- H05K7/20572—Forced ventilation of a gaseous coolant within cabinets for removing heat from sub-racks, e.g. plenum
Abstract
A cabinet for housing electronic, e.g. telephone, equipment in an outdoor environment has an inlet (22), an outlet (23) and a fan (27) for drawing air into the cabinet and circulating it around the electronic equipment (13). Vanes (30), which may be temperature activated in response to severe weather conditions, can be moved to block both the inlet and the outlet so that a closed circulation system can operate within the cabinet. <IMAGE>
Description
Cabinet
The present Invention concerns cabinets for storing electronic telephone exchange equipment at outdoor locations. Owing to the nature of the equipment it is Important that It should be adequately protected from extremes of temperature. These can arise both from the prevailing weather or from the equipment itself generating heat. Accordingly the cabinet should be capable of housing high power equipment in a hot environment without overheating, and low power equipment in a low temperature environment without allowing its internal temperature to fall too low.
Accordingly the present invention consists in a cabinet for housing electronic equipment In an out-of-doors environment, the cabinet having an inlet and an outlet, means for drawing air into the cabinet and circulating the air within the cabinet, and means for blocking both the inlet and the outlet so that a closed circulation system can prevail within the cabinet.
In order that the present invention nay be nore clearly understood, embodiments thereof will now be described by way of example and with reference to the accompanying drawings, in which:
Figure 1 is a section through a cabinet constructed in accordance with the present invention,
Figures 2 and 3 are similar sections through an inlet/outlet vent in its respective open and closed conditions,
Figures 4 and 5 are similar sections through the roof-portion of a second embodiment of a cabinet, and
Figures 6 and 7 are views similar to Figures 4 and 5 of a third embodiment.
Referring now to Figure 1 of the drawings this shows a cabinet 10 for housing telephone exchange equipment in an out-of-doors environment. The cabinet 10 has a ain compartment 11 having shelves 12 on which electronic equipment 13 can be mounted. The front wall 14 of the cabinet 10 is insulated, as is the roof 15 and the side walls (which are not shown). Each shelf in the compartment 11 carries a baffle 20. The rear wall 21 of compartment 11 is of a nesh-like or perforated structure so that air can flow through it.
At the rear the cabinet 10 has an opening which is divided into an inlet 22 and an outlet 23. The Inlet 22 leads via a passage 24 past a heating arrangement 25 such as a coil, a dust filter 26 and fans 27. In this way air can be drawn into the compartment 11 and If necessary be heated. The outlet passage 28 for air leaving the compartment 11 joins with a separate flow passage 29 which passes beneath the roof of the cabinet between an inlet 30 and outlet 23. It can be seen that the contents of compartment 11 can be either heated or cooled by a parallel flow of air via inlet 22, passage 24 and fans 27.
In certain circumstances the ambient conditions might be so extreme that drawing air into the cabinet could cause problems. For example it might be so cold that the heater was unable to raise the temperature of the incoming air sufficiently. In such a case the cabinet can be turned into a closed circulation system by means of moveable vanes 30. As shown In Figure 2 the vanes 30 can take a first position in which they allow ambient air to pass freely into the cabinet via outlet 22 and freely out via outlet 23. In a second state, shown In Figure 3, the inlet and outlet are blocked so that the air circulates within the cabinet. This recirculation of hot air helps with dealing with excess moisture in cold conditions.
The vanes 30 can be controlled in a number of different ways.
They can be driven by a motor, a solenoid or a temperature activated device such as a bi-metallic strip.
An alternative 1nlet/outlet arrangement is shown in Figures 4 and 5. In this embodiment the single, centrally pivoted vane 30 Is replaced by two separate vanes 35, 36 respectively associated with passages 24, 28. Figure 6 shows the closed circulation configuration.
A still further variant Is shown in Figures 6 and 7. In this cabodlnent inlet 22 is associated with a sliding vane 40 and outlet 23 with a right-angled vane 41. The vanes 40, 41 can be limbed so that they are moved by the same mechanism between the open conditon shown in Figure 6 and the closed cIrculation state shown in Figure 7.
In all the embodiments the operation of the heating arrangement 25 and the fans 27, and possibly also the movements of the various cones, is controlled by an environmental control box 50 located on the base of the cabinet and which can include both temperature and moisture sensors. Then it is possible that not only could the fans and heating coils be switched on and off in dependence with sensed condition, but also that the fans could be operated at variable speeds. This can be important when considering the accoustic performance of the cabinet. With regard to the insulation of the cabinet walls already mentioned can also be of a sound absorptive nature.
The inlets and outlets to the cabinet are preferably protected by fine mesh filters to give protection against particle contamination and also seal the cabinet from bird and Insect interference. The inlets and outlets in all the embodiments are placed relatively high in the cabinet -structure to reduce the risk of
Interference from extreme weather conditons such as snow drifts. The
Inlets and outlets are also turned-downN to allow the cabinet to be positioned against walls.
Claims (10)
1. A cabinet for housing electronic equipment in an out-of-doors environment, the cabinet having an inlet opening and an outlet opening, means for drawing ambient air into the cabinet and circulating the air, and means for blocking both the inlet and the outlet so that a closed circulation system can prevail within the cabinet.
2. A cabinet as claimed on Claim 1, and including control means for operating said means for blocking the inlet and outlet in response to changes in the ambient conditions.
3. A cabinet as claimed in Claim 1 or Claim 2 wherein the means for drawing air into said cabinet and circulating it within said cabinet include a fan.
4. A cabinet as claimed in Claim 3 and including means for heating air as it is circulated within said cabinet.
5. A cabinet as claimed in a any one of the preceding Claims wherein the blocking means comprise pivoted vanes movable between a blocking position in which they respectively block the inlet and the outlet and an open position.
6. A cabinet as claimed in any one of Claims 1 to 4 wherein said blocking means comprise vanes each slidable between a blocking position and an open position.
7. A cabinet as claimed in any one of the preceding claims wherein said outlet is located adjacent the roof of the cabinet.
8. A cabinet as claimed in Claim 7, wherein said inlet is located adjacent to said outlet.
9. A cabinet as claimed in Claim 8, and including a filter mesh in the circulation path within the cabinet.
10. A cabinet for housing electronic equipment in an out-of-door environment substantially as herein before described with reference to either Figures 1 to 3 or Figures 4 and 5 or Figures 6 and 7 of the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878704411A GB8704411D0 (en) | 1987-02-25 | 1987-02-25 | Cabinet |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8803045D0 GB8803045D0 (en) | 1988-03-09 |
GB2202681A true GB2202681A (en) | 1988-09-28 |
Family
ID=10612910
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878704411A Pending GB8704411D0 (en) | 1987-02-25 | 1987-02-25 | Cabinet |
GB08803045A Pending GB2202681A (en) | 1987-02-25 | 1988-02-10 | Cabinet for electronic equipment |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878704411A Pending GB8704411D0 (en) | 1987-02-25 | 1987-02-25 | Cabinet |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8704411D0 (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2668875A1 (en) * | 1990-11-07 | 1992-05-07 | Matra Communication | VENTILATION DEVICE FOR AN ELECTRONIC CABINET. |
GB2262190A (en) * | 1991-12-04 | 1993-06-09 | Malcoe Precision Fabrications | Electrical apparatus enclosure |
DE4308476A1 (en) * | 1993-03-17 | 1994-09-22 | Sachsenwerk Ag | Switch panel |
US5613552A (en) * | 1994-07-13 | 1997-03-25 | Nippondenso Co., Ltd. | Cooling apparatus using boiling and condensing refrigerant |
GB2312271A (en) * | 1996-04-19 | 1997-10-22 | Yazaki Corp | Heat-radiation shielding electonic unit-housing box |
US5832989A (en) * | 1996-03-14 | 1998-11-10 | Denso Corporation | Cooling apparatus using boiling and condensing refrigerant |
US6076596A (en) * | 1996-03-14 | 2000-06-20 | Denso Corporation | Cooling apparatus for high-temperature medium by boiling and condensing refrigerant |
GB2347020A (en) * | 1999-02-02 | 2000-08-23 | 3Com Technologies Ltd | Cooling equipment |
US6119767A (en) * | 1996-01-29 | 2000-09-19 | Denso Corporation | Cooling apparatus using boiling and condensing refrigerant |
DE19920187A1 (en) * | 1999-05-03 | 2000-11-09 | Deutsche Telekom Ag | Equipment cabinet for installing electrical equipment for placement in the open, has air circulation openings in base, moisture absorbent material, and water/insect-proof moisture outlet |
GB2351344A (en) * | 1999-05-25 | 2000-12-27 | Lucent Technologies Inc | An enclosure for electrical equipment |
WO2001076340A1 (en) * | 2000-03-31 | 2001-10-11 | Emerson Energy Systems Ab | Apparatus for cooling electronics |
US6357517B1 (en) | 1994-07-04 | 2002-03-19 | Denso Corporation | Cooling apparatus boiling and condensing refrigerant |
US6364009B1 (en) | 1999-11-24 | 2002-04-02 | 3Com Corporation | Cooling devices |
DE20120802U1 (en) * | 2001-12-21 | 2003-02-13 | Siemens Ag | Housing for electrical and electronic component maintains operating temperature within limits |
DE10136457A1 (en) * | 2001-07-26 | 2003-02-20 | Rittal Gmbh & Co Kg | Switch cabinet with at least one door and fan-assisted internal air circuit has double-skin door in air circuit with vertical air distributor and air outlets in wall facing components |
US6527045B1 (en) | 1996-03-14 | 2003-03-04 | Denso Corporation | Cooling apparatus boiling and condensing refrigerant |
EP1217879A3 (en) * | 2000-12-22 | 2005-04-27 | Siemens Information and Communication Networks S.p.A. | Method and equippment for the thermal conditioning of cabinets containing electronic assemblies |
DE102004013317B3 (en) * | 2004-03-17 | 2005-11-10 | Rittal Rcs Communication Systems Gmbh & Co. Kg | Filter fan for cooling a control box comprises a fan and a filter cassette arranged in a housing which is built into an opening of a control box wall |
EP1692924A2 (en) * | 2003-08-27 | 2006-08-23 | Purcell Systems, Inc. | Internal environmental control system and uses thereof |
DE19956038B4 (en) * | 1999-11-22 | 2007-04-12 | Pfannenberg Gmbh | Ventilation device for a housing |
GB2432202A (en) * | 2005-11-15 | 2007-05-16 | Motorola Inc | Vented apparatus for housing electronic equipment |
GB2437770A (en) * | 2006-05-03 | 2007-11-07 | Cannon Technologies Ltd | Reactive cooling system for a rack-mount cabinet |
EP2017687A1 (en) * | 2007-07-16 | 2009-01-21 | Motorola, Inc. | System and method for environmental control of an enclosure |
EP2018093A1 (en) * | 2007-07-16 | 2009-01-21 | Motorola, Inc. | Apparatus and method for air circulation |
US7534167B2 (en) | 2002-03-28 | 2009-05-19 | American Power Conversion Corporation | Data center cooling |
US7604534B2 (en) * | 2003-08-04 | 2009-10-20 | Rayhill Limited | Circulation and external venting unit |
EP2416637A1 (en) * | 2010-08-05 | 2012-02-08 | Ventfair GmbH | Device and method for cooling residential rooms |
EP2257146A3 (en) * | 2009-05-27 | 2012-08-08 | voltwerk electronics GmbH | Converter building |
CN102752993A (en) * | 2012-07-21 | 2012-10-24 | 江苏集云信息科技有限公司 | Forced-cooling circulation structure for server without fan |
US20120298330A1 (en) * | 2010-11-19 | 2012-11-29 | Purcell Systems, Inc. | Air path rain guard for a cooling system of a weatherproof enclosure for electrical equipment and the like |
WO2012173509A1 (en) * | 2011-06-16 | 2012-12-20 | Siemens Aktiengesellschaft | Apparatus comprising a housing and passive cooling |
WO2021083493A1 (en) * | 2019-10-29 | 2021-05-06 | Huawei Technologies Co., Ltd. | A device for controlling an air flow for cooling an electrical component |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1176995A (en) * | 1966-12-20 | 1970-01-07 | Heinz Lohmann | Ventilation Means for the Rooms of a Building |
GB1201568A (en) * | 1968-02-02 | 1970-08-12 | Siemens Ag Albis | Improvements in or relating to ventilated apparatus cabinets |
GB1218530A (en) * | 1967-05-24 | 1971-01-06 | Nordisk Ventilator | Improvements in and relating to ventilators for the ventilation of buildings |
GB1407379A (en) * | 1972-06-09 | 1975-09-24 | Nordisk Ventilator | Ventilation systems |
-
1987
- 1987-02-25 GB GB878704411A patent/GB8704411D0/en active Pending
-
1988
- 1988-02-10 GB GB08803045A patent/GB2202681A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1176995A (en) * | 1966-12-20 | 1970-01-07 | Heinz Lohmann | Ventilation Means for the Rooms of a Building |
GB1218530A (en) * | 1967-05-24 | 1971-01-06 | Nordisk Ventilator | Improvements in and relating to ventilators for the ventilation of buildings |
GB1201568A (en) * | 1968-02-02 | 1970-08-12 | Siemens Ag Albis | Improvements in or relating to ventilated apparatus cabinets |
GB1407379A (en) * | 1972-06-09 | 1975-09-24 | Nordisk Ventilator | Ventilation systems |
Cited By (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0485281A1 (en) * | 1990-11-07 | 1992-05-13 | Matra Communication | Ventilation device for an electronic cabinet |
FR2668875A1 (en) * | 1990-11-07 | 1992-05-07 | Matra Communication | VENTILATION DEVICE FOR AN ELECTRONIC CABINET. |
GB2262190A (en) * | 1991-12-04 | 1993-06-09 | Malcoe Precision Fabrications | Electrical apparatus enclosure |
GB2262190B (en) * | 1991-12-04 | 1995-09-13 | Malcoe Precision Fabrications | Electrical apparatus enclosure |
DE4308476A1 (en) * | 1993-03-17 | 1994-09-22 | Sachsenwerk Ag | Switch panel |
US6357517B1 (en) | 1994-07-04 | 2002-03-19 | Denso Corporation | Cooling apparatus boiling and condensing refrigerant |
US5613552A (en) * | 1994-07-13 | 1997-03-25 | Nippondenso Co., Ltd. | Cooling apparatus using boiling and condensing refrigerant |
US6119767A (en) * | 1996-01-29 | 2000-09-19 | Denso Corporation | Cooling apparatus using boiling and condensing refrigerant |
US6575230B1 (en) | 1996-01-29 | 2003-06-10 | Denso Corporation | Cooling apparatus using boiling and condensing refrigerant |
US5832989A (en) * | 1996-03-14 | 1998-11-10 | Denso Corporation | Cooling apparatus using boiling and condensing refrigerant |
US6076596A (en) * | 1996-03-14 | 2000-06-20 | Denso Corporation | Cooling apparatus for high-temperature medium by boiling and condensing refrigerant |
US7004239B2 (en) | 1996-03-14 | 2006-02-28 | Denso Corporation | Cooling apparatus boiling and condensing refrigerant |
US6527045B1 (en) | 1996-03-14 | 2003-03-04 | Denso Corporation | Cooling apparatus boiling and condensing refrigerant |
US5856909A (en) * | 1996-04-19 | 1999-01-05 | Yazaki Corporation | Heat-radiation structure of electric unit box |
GB2312271B (en) * | 1996-04-19 | 1998-07-15 | Yazaki Corp | Heat-radiation shielding electronic unit-housing box |
GB2312271A (en) * | 1996-04-19 | 1997-10-22 | Yazaki Corp | Heat-radiation shielding electonic unit-housing box |
GB2347020B (en) * | 1999-02-02 | 2003-05-14 | 3Com Technologies Ltd | Cooling equipment |
GB2347020A (en) * | 1999-02-02 | 2000-08-23 | 3Com Technologies Ltd | Cooling equipment |
US6330154B1 (en) | 1999-02-02 | 2001-12-11 | 3Com Corporation | Cooling equipment |
DE19920187A1 (en) * | 1999-05-03 | 2000-11-09 | Deutsche Telekom Ag | Equipment cabinet for installing electrical equipment for placement in the open, has air circulation openings in base, moisture absorbent material, and water/insect-proof moisture outlet |
GB2351344B (en) * | 1999-05-25 | 2001-06-20 | Lucent Technologies Inc | Cooling unit using pressure differential |
GB2351344A (en) * | 1999-05-25 | 2000-12-27 | Lucent Technologies Inc | An enclosure for electrical equipment |
DE19956038B4 (en) * | 1999-11-22 | 2007-04-12 | Pfannenberg Gmbh | Ventilation device for a housing |
US6364009B1 (en) | 1999-11-24 | 2002-04-02 | 3Com Corporation | Cooling devices |
WO2001076340A1 (en) * | 2000-03-31 | 2001-10-11 | Emerson Energy Systems Ab | Apparatus for cooling electronics |
US6700780B2 (en) | 2000-03-31 | 2004-03-02 | Emerson Energy Systems Ab | Apparatus for cooling electronics |
EP1217879A3 (en) * | 2000-12-22 | 2005-04-27 | Siemens Information and Communication Networks S.p.A. | Method and equippment for the thermal conditioning of cabinets containing electronic assemblies |
DE10136457B4 (en) * | 2001-07-26 | 2005-02-03 | Rittal Gmbh & Co. Kg | Control cabinet with a cabinet door attached to the front and a rear wall designed as a cabinet door |
DE10136457A1 (en) * | 2001-07-26 | 2003-02-20 | Rittal Gmbh & Co Kg | Switch cabinet with at least one door and fan-assisted internal air circuit has double-skin door in air circuit with vertical air distributor and air outlets in wall facing components |
DE20120802U1 (en) * | 2001-12-21 | 2003-02-13 | Siemens Ag | Housing for electrical and electronic component maintains operating temperature within limits |
US7878889B2 (en) | 2002-03-28 | 2011-02-01 | American Power Conversion Corporation | Data center cooling |
US7534167B2 (en) | 2002-03-28 | 2009-05-19 | American Power Conversion Corporation | Data center cooling |
US9392733B2 (en) | 2002-03-28 | 2016-07-12 | Schneider Electric It Corporation | Data center cooling |
US8157626B2 (en) | 2002-03-28 | 2012-04-17 | American Power Conversion Corporation | Data center cooling |
US7867070B2 (en) | 2002-03-28 | 2011-01-11 | American Power Conversion Corporation | Data center cooling |
US7604534B2 (en) * | 2003-08-04 | 2009-10-20 | Rayhill Limited | Circulation and external venting unit |
EP1692924A4 (en) * | 2003-08-27 | 2008-09-17 | Purcell Systems Inc | Internal environmental control system and uses thereof |
EP1692924A2 (en) * | 2003-08-27 | 2006-08-23 | Purcell Systems, Inc. | Internal environmental control system and uses thereof |
DE102004013317B3 (en) * | 2004-03-17 | 2005-11-10 | Rittal Rcs Communication Systems Gmbh & Co. Kg | Filter fan for cooling a control box comprises a fan and a filter cassette arranged in a housing which is built into an opening of a control box wall |
GB2432202A (en) * | 2005-11-15 | 2007-05-16 | Motorola Inc | Vented apparatus for housing electronic equipment |
GB2432202B (en) * | 2005-11-15 | 2008-05-21 | Motorola Inc | Apparatus for housing electronic equipment |
GB2437770A (en) * | 2006-05-03 | 2007-11-07 | Cannon Technologies Ltd | Reactive cooling system for a rack-mount cabinet |
EP2018093A1 (en) * | 2007-07-16 | 2009-01-21 | Motorola, Inc. | Apparatus and method for air circulation |
EP2017687A1 (en) * | 2007-07-16 | 2009-01-21 | Motorola, Inc. | System and method for environmental control of an enclosure |
EP2257146A3 (en) * | 2009-05-27 | 2012-08-08 | voltwerk electronics GmbH | Converter building |
EP2416637A1 (en) * | 2010-08-05 | 2012-02-08 | Ventfair GmbH | Device and method for cooling residential rooms |
US20120298330A1 (en) * | 2010-11-19 | 2012-11-29 | Purcell Systems, Inc. | Air path rain guard for a cooling system of a weatherproof enclosure for electrical equipment and the like |
WO2012173509A1 (en) * | 2011-06-16 | 2012-12-20 | Siemens Aktiengesellschaft | Apparatus comprising a housing and passive cooling |
CN102752993A (en) * | 2012-07-21 | 2012-10-24 | 江苏集云信息科技有限公司 | Forced-cooling circulation structure for server without fan |
WO2021083493A1 (en) * | 2019-10-29 | 2021-05-06 | Huawei Technologies Co., Ltd. | A device for controlling an air flow for cooling an electrical component |
Also Published As
Publication number | Publication date |
---|---|
GB8704411D0 (en) | 1987-04-01 |
GB8803045D0 (en) | 1988-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) |