GB2354066A - Cabinet for units which dissipate heat - Google Patents
Cabinet for units which dissipate heat Download PDFInfo
- Publication number
- GB2354066A GB2354066A GB9921094A GB9921094A GB2354066A GB 2354066 A GB2354066 A GB 2354066A GB 9921094 A GB9921094 A GB 9921094A GB 9921094 A GB9921094 A GB 9921094A GB 2354066 A GB2354066 A GB 2354066A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cabinet
- units
- air
- plenum chamber
- fan unit
- 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.)
- Granted
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
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
A cabinet 2 is disclosed for a plurality of units 6 which dissipate heat. The cabinet 2 has a plenum chamber 12, a rack 4 for mounting the units allowing passages for cooling air past the units, and a fan unit 14 for propelling air to flow from outside the cabinet through the passages into the plenum chamber and through an exhaust from the plenum chamber. The fan unit has a backwardly curved impeller 16 mounted for driven rotation about an axis and an outlet passage 20 arranged to direct out-flowing air generally parallel to the axis. The fan unit 14 may be mounted in the top of the cabinet so as to direct out-flowing air upwardly. The cabinet 2 may have a passage containing a filter through which the air is drawn into the cabinet 2.
Description
2354066 CABINET FOR UNITS WHICH DISSIPATE HEAT This invention relates to
cabinets for units which dissipate heat.
The background to the invention will be described with reference to a particular application. The invention is not limited to this application and others will occur readily to 5 the reader.
Electronic equipment is often manufactured in units intended to be mounted in racks. Each unit dissipates heat and may require cooling. One method of cooling is to provide each unit with its own cooling fan. The invention is based on a proposal to construct the rack as a cabinet and to draw air into the cabinet over all the units so cooling them all together. Designing a cabinet uncovers a conflict. The cabinet has to be dimensioned to fit existing equipment rooms, i.e. its dimensions are desired to be conventional. In the cabinet it is desired to place as many units as possible, so they will be as close together as possible commensurate with leaving passages for cooling air to circulate between them. Narrower passages also lead to higher air speed which improves cooling. However, narrower passages also lead to greater resistance to air flow and thus to larger fans which reduces the amount of interior space available for the u n its.
Against this background, there is provided a cabinet for a plurality of units which dissipate heat, the cabinet having a plenum chamber, means for mounting the units allowing passages for cooling air past the units, and a fan unit for propelling air to flow from outside the cabinet through the passages into the plenum chamber and through an exhaust from the plenum chamber, said fan unit having a backwardly curved impeller mounted for driven rotation about an axis and an outlet passage arranged to direct outflowing air generally parallel to the axis. The provision of a fan unit having backwardly a curved impeller, dramatically increases the potential working pressure difference across a fan unit of given dimensions, compared with an axial fan, which allows maximum internal space to be allocated to the heat dissipating units.
Preferably, the fan unit is mounted in the top of the cabinet so as to direct outflowing air upwardly.
The invention has even greater advantage when, as in a preferred embodiment, air is drawn into the cabinet through a filter, since this increases the resistance to flow and 5 thus the load on the fan unit.
In a preferred arrangement, the cabinet has a door in which the passage is located and the plenum chamber is located behind the units remote from the door.
One embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a schematic cross section of a cabinet embodying the invention; Figure 2 is a scrap front view of two units contained by the cabinets, showing an air passage between them; and Figure 3 is a pictorial view of the fan unit with its cover removed.
Referring to the drawings, the cabinet 2 has an internal rack 4 for electronic units 6, e.g. radio units, antenna coupling equipment, power distribution equipment, central processing electronics etc. The units are mounted side by side in the rack as illustrated in Figure 2. The units 6 dissipate heat and some or all have extended external surfaces, or fins, 8 to assist cooling as air circulates through narrow passages 10 between them.
Behind the rack 4 is a plenum chamber 12 at the upper end of which a fan unit 14 is located. In order to remain desirably small whilst being able to draw sufficient air through the narrow pass6ges 10, the fan unit has a backwardly curved impeller 16 which is driven by an electric motor 18 to rotate about an axis 19. From the nature of a backwardly curved impellor, air is drawn axially into the impeller from the plenum chamber 12 and is driven radially outwardly by the rotating impeller. It is desired that the exhaust air should flow generally upwardly parallel to the axis 19 and to this end the fan unit has an outlet passage 20 defined by a baffle 22 which deflects air generally vertically. A further baffle 24 deflects outwardly flowing air forwardly towards the outlet passage 20.
The cabinet is closed and sealed by a door 26 so that the only inlet for air into it is through a filter, shown schematically at 28, mounted in the door. This further restricts the airflow increasing the load on the fan unit and making the need for the backwardly curved impeller greater.
Claims (4)
1 A cabinet for a plurality of units which dissipate heat, the cabinet having a plenum chamber, means for mounting the units allowing passages for cooling air past the units, and a fan unit for propelling air to flow from outside the cabinet through the passages into the plenum chamber and through an exhaust from the plenum chamber, said fan unit having a backwardly curved impeller mounted for driven rotation about an axis and an outlet passage arranged to direct out-flowing air generally parallel to the axis.
2. A cabinet as claimed in claim 1, wherein the fan unit is mounted in the top 10 of the cabinet so as to direct out-flowing air upwardly.
3. A cabinet as claimed in claim 1 or 2, including a passage containing a filter through which the air is drawn into the cabinet.
4. A cabinet as claimed in claim 3, wherein the cabinet has a door in which the passage is located and the plenum chamber is located behind the units remote from the door.
t
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9921094A GB2354066B (en) | 1999-09-07 | 1999-09-07 | Cabinet for units which dissipate heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9921094A GB2354066B (en) | 1999-09-07 | 1999-09-07 | Cabinet for units which dissipate heat |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9921094D0 GB9921094D0 (en) | 1999-11-10 |
| GB2354066A true GB2354066A (en) | 2001-03-14 |
| GB2354066B GB2354066B (en) | 2001-07-18 |
Family
ID=10860481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9921094A Expired - Fee Related GB2354066B (en) | 1999-09-07 | 1999-09-07 | Cabinet for units which dissipate heat |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2354066B (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002101528A2 (en) * | 2001-06-12 | 2002-12-19 | Fujitsu Siemens Computers Gmbh | Computer cupboard and arrangement of a computer cupboard |
| FR2831019A1 (en) * | 2001-10-12 | 2003-04-18 | Legrand Sa | Transmission/processing digital words electrical cupboards for refrigerator having cupboard with inner smaller dimension compartments leaving air channel duct intermediate area and air flowing inlet mouth/through compartments/outlet mouth |
| WO2005081607A1 (en) | 2004-02-17 | 2005-09-01 | American Power Conversion Corporation | Rack enclosure |
| US7525799B2 (en) * | 2006-12-22 | 2009-04-28 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Cabinet for electronic devices |
| US7752858B2 (en) | 2002-11-25 | 2010-07-13 | American Power Conversion Corporation | Exhaust air removal system |
| US7862410B2 (en) | 2006-01-20 | 2011-01-04 | American Power Conversion Corporation | Air removal unit |
| US7894190B2 (en) | 2009-01-05 | 2011-02-22 | Chatsworth Products, Inc. | Electronic equipment enclosure with side-to-side airflow control system |
| WO2011033270A2 (en) | 2009-09-21 | 2011-03-24 | 4Energy Limited | Equipment cabinet |
| US7952869B2 (en) * | 2005-09-19 | 2011-05-31 | Chatsworth Products, Inc. | Air diverter for directing air upwardly in an equipment enclosure |
| US8040673B2 (en) | 2008-09-08 | 2011-10-18 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US8087979B2 (en) | 2003-05-13 | 2012-01-03 | American Power Conversion Corporation | Rack enclosure |
| US8107238B2 (en) | 2005-09-19 | 2012-01-31 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US8257155B2 (en) | 2006-01-20 | 2012-09-04 | Chatsworth Products, Inc. | Selectively routing air within an electronic equipment enclosure |
| US8653363B2 (en) | 2010-06-01 | 2014-02-18 | Chatsworth Products, Inc. | Magnetic filler panel for use in airflow control system in electronic equipment enclosure |
| US9313927B2 (en) | 2010-11-08 | 2016-04-12 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US9585266B2 (en) | 2010-11-08 | 2017-02-28 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US9655259B2 (en) | 2011-12-09 | 2017-05-16 | Chatsworth Products, Inc. | Data processing equipment structure |
| US9952103B2 (en) | 2011-12-22 | 2018-04-24 | Schneider Electric It Corporation | Analysis of effect of transient events on temperature in a data center |
| US9955616B2 (en) | 2010-11-08 | 2018-04-24 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US10133320B2 (en) | 2008-02-14 | 2018-11-20 | Chatsworth Products, Inc. | Air directing device |
| US11076507B2 (en) | 2007-05-15 | 2021-07-27 | Schneider Electric It Corporation | Methods and systems for managing facility power and cooling |
| US11212928B2 (en) | 2005-09-19 | 2021-12-28 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US11259446B2 (en) | 2005-09-19 | 2022-02-22 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104582445A (en) * | 2014-12-30 | 2015-04-29 | 周旺龙 | Forced air cooling bottom plate radiator structure of electric vehicle motor controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3829250A (en) * | 1971-09-22 | 1974-08-13 | Torin Corp | Blower assembly |
| WO1988001127A1 (en) * | 1986-08-07 | 1988-02-11 | Ncr Corporation | An electronic equipment enclosure |
| US4917572A (en) * | 1988-05-23 | 1990-04-17 | Airflow Research And Manufacturing Corporation | Centrifugal blower with axial clearance |
| GB2293279A (en) * | 1994-09-14 | 1996-03-20 | Questech Ltd | Housings for electronic equipment |
| EP0741246A1 (en) * | 1995-05-05 | 1996-11-06 | Alcatel SEL Aktiengesellschaft | Radial blower |
| US5751549A (en) * | 1996-06-26 | 1998-05-12 | Sun Microsystems, Inc. | Hard disk drive assembly which has a plenum chamber and a fan assembly that is perpendicular to a rack chamber |
-
1999
- 1999-09-07 GB GB9921094A patent/GB2354066B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3829250A (en) * | 1971-09-22 | 1974-08-13 | Torin Corp | Blower assembly |
| WO1988001127A1 (en) * | 1986-08-07 | 1988-02-11 | Ncr Corporation | An electronic equipment enclosure |
| US4917572A (en) * | 1988-05-23 | 1990-04-17 | Airflow Research And Manufacturing Corporation | Centrifugal blower with axial clearance |
| GB2293279A (en) * | 1994-09-14 | 1996-03-20 | Questech Ltd | Housings for electronic equipment |
| EP0741246A1 (en) * | 1995-05-05 | 1996-11-06 | Alcatel SEL Aktiengesellschaft | Radial blower |
| US5751549A (en) * | 1996-06-26 | 1998-05-12 | Sun Microsystems, Inc. | Hard disk drive assembly which has a plenum chamber and a fan assembly that is perpendicular to a rack chamber |
Cited By (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002101528A3 (en) * | 2001-06-12 | 2003-10-30 | Fujitsu Siemens Computers Gmbh | Computer cupboard and arrangement of a computer cupboard |
| WO2002101528A2 (en) * | 2001-06-12 | 2002-12-19 | Fujitsu Siemens Computers Gmbh | Computer cupboard and arrangement of a computer cupboard |
| FR2831019A1 (en) * | 2001-10-12 | 2003-04-18 | Legrand Sa | Transmission/processing digital words electrical cupboards for refrigerator having cupboard with inner smaller dimension compartments leaving air channel duct intermediate area and air flowing inlet mouth/through compartments/outlet mouth |
| US7752858B2 (en) | 2002-11-25 | 2010-07-13 | American Power Conversion Corporation | Exhaust air removal system |
| US8544289B2 (en) | 2002-11-25 | 2013-10-01 | Schneider Electric It Corporation | Exhaust air removal system |
| US8087979B2 (en) | 2003-05-13 | 2012-01-03 | American Power Conversion Corporation | Rack enclosure |
| US7878888B2 (en) | 2003-05-13 | 2011-02-01 | American Power Conversion Corporation | Rack enclosure |
| WO2005081607A1 (en) | 2004-02-17 | 2005-09-01 | American Power Conversion Corporation | Rack enclosure |
| US12082379B2 (en) | 2005-09-19 | 2024-09-03 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US9084369B2 (en) | 2005-09-19 | 2015-07-14 | Chatsworth Products, Inc. | Vertical exhaust duct |
| US7952869B2 (en) * | 2005-09-19 | 2011-05-31 | Chatsworth Products, Inc. | Air diverter for directing air upwardly in an equipment enclosure |
| US11678447B2 (en) | 2005-09-19 | 2023-06-13 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US11547020B2 (en) | 2005-09-19 | 2023-01-03 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US10334761B2 (en) | 2005-09-19 | 2019-06-25 | Chatsworth Products, Inc. | Method of venting heated air from electronic equipment enclosure |
| US10440847B2 (en) | 2005-09-19 | 2019-10-08 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US8107238B2 (en) | 2005-09-19 | 2012-01-31 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US10568239B2 (en) | 2005-09-19 | 2020-02-18 | Chatsworth Products, Inc. | Method of venting heated air from electronic equipment enclosure |
| US10624232B2 (en) | 2005-09-19 | 2020-04-14 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US11259446B2 (en) | 2005-09-19 | 2022-02-22 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US8730665B2 (en) | 2005-09-19 | 2014-05-20 | Chatsworth Products, Inc. | Vertical exhaust duct |
| US8737068B2 (en) | 2005-09-19 | 2014-05-27 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US11785745B2 (en) | 2005-09-19 | 2023-10-10 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US9119329B2 (en) | 2005-09-19 | 2015-08-25 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US11212928B2 (en) | 2005-09-19 | 2021-12-28 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US10123462B2 (en) | 2005-09-19 | 2018-11-06 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US9974198B2 (en) | 2005-09-19 | 2018-05-15 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US9801309B2 (en) | 2005-09-19 | 2017-10-24 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US10791640B2 (en) | 2005-09-19 | 2020-09-29 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US10765037B2 (en) | 2005-09-19 | 2020-09-01 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
| US7862410B2 (en) | 2006-01-20 | 2011-01-04 | American Power Conversion Corporation | Air removal unit |
| US8257155B2 (en) | 2006-01-20 | 2012-09-04 | Chatsworth Products, Inc. | Selectively routing air within an electronic equipment enclosure |
| US7525799B2 (en) * | 2006-12-22 | 2009-04-28 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Cabinet for electronic devices |
| US11076507B2 (en) | 2007-05-15 | 2021-07-27 | Schneider Electric It Corporation | Methods and systems for managing facility power and cooling |
| US11503744B2 (en) | 2007-05-15 | 2022-11-15 | Schneider Electric It Corporation | Methods and systems for managing facility power and cooling |
| US11132035B2 (en) | 2008-02-14 | 2021-09-28 | Chatsworth Products, Inc. | Air directing device |
| US10133320B2 (en) | 2008-02-14 | 2018-11-20 | Chatsworth Products, Inc. | Air directing device |
| US11880247B2 (en) | 2008-02-14 | 2024-01-23 | Chatsworth Products, Inc. | Air directing device |
| US12052843B2 (en) | 2008-09-08 | 2024-07-30 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US11706898B2 (en) | 2008-09-08 | 2023-07-18 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US8040673B2 (en) | 2008-09-08 | 2011-10-18 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US11464132B2 (en) | 2008-09-08 | 2022-10-04 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
| US7894190B2 (en) | 2009-01-05 | 2011-02-22 | Chatsworth Products, Inc. | Electronic equipment enclosure with side-to-side airflow control system |
| US7957139B2 (en) | 2009-01-05 | 2011-06-07 | Chatsworth Products, Inc. | Electronic equipment enclosure with side-to-side airflow control system |
| WO2011033270A2 (en) | 2009-09-21 | 2011-03-24 | 4Energy Limited | Equipment cabinet |
| WO2011033270A3 (en) * | 2009-09-21 | 2011-06-23 | 4Energy Limited | Equipment cabinet |
| US8653363B2 (en) | 2010-06-01 | 2014-02-18 | Chatsworth Products, Inc. | Magnetic filler panel for use in airflow control system in electronic equipment enclosure |
| US9313927B2 (en) | 2010-11-08 | 2016-04-12 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US10568246B2 (en) | 2010-11-08 | 2020-02-18 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US11166395B2 (en) | 2010-11-08 | 2021-11-02 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US9585266B2 (en) | 2010-11-08 | 2017-02-28 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US10932400B2 (en) | 2010-11-08 | 2021-02-23 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US9955616B2 (en) | 2010-11-08 | 2018-04-24 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US11889633B2 (en) | 2010-11-08 | 2024-01-30 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US10306812B2 (en) | 2010-11-08 | 2019-05-28 | Chatsworth Products, Inc. | Header panel assembly for preventing air circulation above electronic equipment enclosure |
| US9655259B2 (en) | 2011-12-09 | 2017-05-16 | Chatsworth Products, Inc. | Data processing equipment structure |
| US10709039B2 (en) | 2011-12-09 | 2020-07-07 | Chatsworth Products, Inc. | Data processing equipment structure |
| US9952103B2 (en) | 2011-12-22 | 2018-04-24 | Schneider Electric It Corporation | Analysis of effect of transient events on temperature in a data center |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9921094D0 (en) | 1999-11-10 |
| GB2354066B (en) | 2001-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20170907 |