WO2009132639A2 - Bâti - Google Patents

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Publication number
WO2009132639A2
WO2009132639A2 PCT/DE2009/000613 DE2009000613W WO2009132639A2 WO 2009132639 A2 WO2009132639 A2 WO 2009132639A2 DE 2009000613 W DE2009000613 W DE 2009000613W WO 2009132639 A2 WO2009132639 A2 WO 2009132639A2
Authority
WO
WIPO (PCT)
Prior art keywords
wall
housing
roof
walls
interior
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.)
Ceased
Application number
PCT/DE2009/000613
Other languages
German (de)
English (en)
Other versions
WO2009132639A4 (fr
WO2009132639A9 (fr
WO2009132639A3 (fr
Inventor
Jose Manuel Fernandez Martin
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.)
Airbus Defence and Space GmbH
Original Assignee
EADS Deutschland GmbH
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 EADS Deutschland GmbH filed Critical EADS Deutschland GmbH
Publication of WO2009132639A2 publication Critical patent/WO2009132639A2/fr
Publication of WO2009132639A3 publication Critical patent/WO2009132639A3/fr
Publication of WO2009132639A4 publication Critical patent/WO2009132639A4/fr
Anticipated expiration legal-status Critical
Publication of WO2009132639A9 publication Critical patent/WO2009132639A9/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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

  • the invention relates to a housing according to the preamble of patent claim 1.
  • cabinet-like housing For the shielded against climatic effects and with respect to the emission of electromagnetic interference accommodation of electrical and / or electronic devices and modules of telecommunications, traffic control, high voltage and medium voltage engineering, especially in outdoor areas, different cabinet-like housing are used in the prior art.
  • Such cabinet type enclosures are e.g. from DE U 295 19 260 and EP 1 002 352 B1.
  • Such mostly rectangular housing enclose with metallic walls on all sides an interior in which the devices are housed. Often, lockable doors are provided for easy access during installation, maintenance, and repair on the front of the housing. In enclosures for outdoor use, a roof is usually additionally arranged on the upper side, which protects the housing against rain and sunlight.
  • the protective function in particular also the electromagnetic shielding function of the housing, entails that the interior space is sealed relatively tight with respect to the surrounding exterior space by means of suitable seals.
  • This also has the advantage that the devices and assemblies located in the housing are largely protected from dust and moisture, but also insects (termites) or the like., Protected. If the devices and assemblies generate heat during their operation, this heat is transferred from the heated air in the interior and / or by heat radiation on the walls of the housing and discharged from the outside by air convection and / or thermal radiation to the environment.
  • special refrigeration units or air conditioning units inside such a housing for heat dissipation, but consume such refrigeration units or air conditioners relatively much power.
  • such high power consumption is intolerable in those cases where the devices and assemblies housed in the housing need to be supplied by a local battery as part of an emergency power supply.
  • a high power consumption for economic and ecological reasons is no longer compatible with modern technology.
  • the heat dissipation from the outside by air convection and / or heat radiation to the environment is problematic when a lot of heat is generated inside the housing, or if the housing is additionally heated from the outside by strong sunlight and high outside temperatures.
  • Special (reflective) coatings of the outer surfaces of the housing can indeed reduce the influence of solar radiation, but the negative consequences of a strong heat inside can not be effectively prevented.
  • the heat dissipation from the interior deteriorates, however, if double walled walls are used instead of simple walls for reasons of stability, because the heat transfer from the inside to the outside is hindered in this case by additional interfaces.
  • a good heat dissipation from the interior can still be achieved by sucking a cooling air flow from bottom to top through the interior of the housing (provided with ventilation openings) by means of a fan arranged, for example, on the top of the housing.
  • a fan arranged, for example, on the top of the housing.
  • EP 1 002 352 B1 describes a housing which uses the double walls of the walls in order to dissipate the heat from the interior.
  • the double-walled walls are made of vertically arranged aluminum Hollow profiles assembled.
  • the disadvantage here is the resulting between the inner and outer wall thermal bridge.
  • the heat dissipation is carried out by air through the spaces between the inner wall and outer wall and the use of a top roof, an intermediate roof and mounted in the intermediate roof fans for generating an air flow through the interstices.
  • a top roof an intermediate roof and mounted in the intermediate roof fans for generating an air flow through the interstices.
  • the air extracted by the fans is forced out laterally and downwards out of openings into the environment.
  • Flow is directed in the area of the walls from bottom to top, whereby the natural convection flow is supported.
  • the flow In the area of the intermediate roof, however, the flow is horizontal and directed in the area of the subsequent openings from top to bottom. In these areas, the natural convection flow is severely hampered, requiring more suction power from the fans.
  • the object of the invention is to provide a comparison with the prior art improved housing, in which the removal of the heat from the interior compared to the prior art is made more efficient and energy-efficient.
  • an insulating material with a closed cell structure is attached to the inner wall facing surface of the outer wall.
  • the thickness of the insulating material is suitably between 2 and 4 cm and the coefficient of thermal conductivity of the insulating material is advantageously less than 0.03 W / mK.
  • the insulating material is formed so that the thickness of the region of the housing bottom to the top, ie in the direction of the building roof increases. As a result, the cross section of the gap between the outer wall and the inner wall is reduced to the same extent.
  • a kind of chimney effect is effected, which in turn causes the air can flow faster and more uniformly in the intermediate space. The more uniform (laminar) flow ensures that the air can better absorb the heat released by the inner wall.
  • the closed cell structure of the insulation material ensures that the material is not damaged by the air humidity in the gap.
  • the closed cell structure prevents the insulating material from absorbing the water in the air, thereby deteriorating the insulating properties.
  • the insulating material extruded polystyrene can be used in a particular embodiment of the invention.
  • a second roof is present, which is mounted on the first roof.
  • the second roof is mounted at a predeterminable angle to the first roof.
  • solar modules are mounted in a preferred embodiment.
  • the proposed solar modules serve as "active cooling".
  • Known solar cells convert about 15-25% of the incident solar radiation into electrical energy.
  • the incident on the outer walls and the roof of the housing solar energy is thus reduced by these 15-25%, resulting in a lower thermal heating of the corresponding surfaces result.
  • the shaded areas must therefore be cooled with a lower energy consumption in the invention.
  • the third advantage is that the second roof continues to serve the "passive cooling” by shading the housing, thus supporting the cooling of the interior. To improve this shading effect, the second roof extends beyond the dimensions of the first roof. As a result, the shadowing of the side walls is also favored depending on the position of the sun.
  • the solar modules are expediently 48VDC photovoltaic solar modules.
  • angles should not be less than 10 ° -12 °, otherwise it takes Pollution over time, whereby the energy yield of the solar modules decreases.
  • the angle at which the second roof is mounted on the first roof is between 10 ° and 50 °.
  • the solar modules are acted upon from the back with an air flow from the space between the outer and inner walls of the housing.
  • the temperature of this air flow is usually lower than the working temperature of the solar modules under full solar radiation, which is usually between 45 0 C to 50 0 C and higher. It is known, however, that the solar modules have an efficacy of 15-25% only at a temperature of about 20 0 C.
  • the back cooling of the solar modules reduces the working temperature of the solar modules. As a result, the efficiency is somewhat improved, unlike uncooled solar modules.
  • each fan is connected to a Bi- metal switch, wherein the bi-metal switch mounted in the interior of the surface of a heat-generating assembly.
  • the bi-metal switch allows the fan to be controlled depending on the temperature of the heat-generating unit. As a result, the power consumption of the fans can be controlled via the temperature of the units. If the outside temperatures decrease, e.g. At night, it is not or only partially necessary to operate the fans. This saves additional electrical energy.
  • a switched-off, ie non-rotating, fan makes it difficult for air to flow in the intermediate space due to convection.
  • the air in the air gap does not move or only slightly, whereby the air in the space at low outside temperatures serves as additional insulation for the interior.
  • airflow will be in the space Prevents the inner walls surrounding the units from being overheated and thus increasing the temperature in the interior beyond the permissible operating temperatures of the units.
  • the gap prevents the interior from overcooling due to the fact that air flow is prevented. This will automatically regulate the indoor temperature of the interior even in places with extreme fluctuations in the outside temperature (eg higher elevations, deserts, etc).
  • the fans work expediently with a DC voltage of 48VDC. Furthermore, the fans are dimensioned so that the least possible power is consumed in order to generate the necessary for cooling airflow. Suitably, each fan with as little electrical power consumption as possible should be able to move the largest possible amount of air, for example, each fan about 1000m 3 / h at about 50 W. The required amount of ventilation and thus the selection of the respective fan is at the dissipated heat taking into account the heat capacity the air determines.
  • the fans can be actuated at different predeterminable temperatures on the surfaces of the heat-generating units. This also electricity can be saved.
  • FIG. 1 shows a schematic longitudinal section of an embodiment of a housing according to the invention
  • Fig. 2 is a schematic plan view of an embodiment of a housing according to the invention.
  • Fig. 1 an embodiment of a housing according to the invention is shown in the schematic longitudinal section.
  • Fig. 2 shows a schematic plan view of an embodiment of a housing according to the invention.
  • the housing 1 encloses with walls, to which the side walls 2, 3 and the lid 7b belong, an interior space 4, in which the example indicated heat generating units 5a, 5b housed.
  • the interior is completed on the bottom by a floor panel.
  • the housing 1 is ideally arranged elevated on a pedestal (not shown) so that air from below has free access to the undersides of the walls 2, 3.
  • the housing 1 comprises two side walls 2,3, a front wall 12 and a rear wall 13.
  • the housing 1 comprises a bottom plate and a lid 7b. All walls 2, 3, 12, 13 are expediently double-walled and consist of an inner wall 2b, 3b and an outer wall 2a, 3a between which in each case a gap 2c, 3c remains. This intermediate space 2c, 3c serves to dissipate heat from the interior 4.
  • the outer wall 2a, 3a is connected to the inner wall 2b, 3b via spacers 9. These spacers 9 are expediently designed as a bolt. In order to prevent heat transfer between the walls, the bolts are advantageously made of a low thermal conductivity material. In addition, a thermal insulation layer 10 is attached to the inside of this outer wall 2a, 3a in order not to emit the solar radiation heat to the gaps 2c, 3c.
  • an air flow is now sent for cooling, preferably from bottom to top, as indicated in FIG. 1 by the flow lines provided with arrows.
  • the air is sucked in from the environment of the housing 1 on the underside of the walls 2, 3 and exits from the walls 2, 3 at the top again.
  • the bottom of the walls 2, 3 is suitably provided with insect screens.
  • the air streams absorb heat from the inner walls 2b, 3b and transport this heat into the environment.
  • To generate the cooling air flow fans 6 are provided, which are arranged lying flat in a first roof 7a.
  • the first roof 7, which consists for example of a metal sheet, engages over the upwardly open intermediate spaces 2c, 3c of the double-walled walls 2, 3 and terminates with the associated outer wall 2a or 3a of the walls 2, 3.
  • a flat gap 7c is formed between the cover 7b and the first roof 7a, in which the air streams from the spaces 2c, 3c of the walls 2, 3 can flow and are sucked from there through the fans 6a, 6b upwards.
  • the fans 6 (and the entire housing 1) are protected at the top by a second roof 8, which is arranged at a predeterminable angle above the first roof 7.
  • On the second roof 8 expediently solar modules are arranged (not shown).
  • the air from the gap 2c, 3c, 7c in the direction (flow arrows in Fig. 1) of the underside 8a of the second roof 8 is pressed.
  • This causes a cooling of the underside 8a of the second roof 8, whereby the operating temperature of the arranged on the second roof 8 solar modules is reduced and thereby, as already explained above, the efficiency of the solar modules is slightly increased.
  • the solar modules can also form the roof 8 itself in a particular embodiment of the invention.
  • the projection of the second roof 8 on the first roof is suitably larger. As a result, an additional shading of the side walls is achieved.
  • the heat transfer to the inner walls 2b, 3b is optimized by cooling fins 11 on the inner walls 2b, 3b.
  • further means in the form of heat pipes (not shown) for heat transfer between cover 7b and the air in the intermediate space can be mounted on top of cover 7b.
  • fans 5 a, 5 b it is advantageous in view of the desired low energy consumption to use types of fans with which a maximum air volume per hour, for example about 1000 m 3 / h per fan can be moved at given cross sections of the spaces 2c, 3c, 7c , With as small as possible power consumption of the fans 5a, 5b, eg 5OW.
  • the construction of the double-walled walls 2, 3 takes place in that an outer wall 2a, 3a arranged parallel to the inner wall 2b, 3b and secured by means of spacers 9 to this, for example, welded or screwed.
  • the spacers 9 are made of a non-thermally conductive material.
  • the spacers serve as insulation between inner wall 2b, 3b and outer wall 2a, 3a, so that no heat transfer between the inner wall 2b, 3b and the outer wall 2a, 3a takes place.
  • the heat conduction coefficient of the spacers should be less than the heat conduction coefficient of the air in the gap 2c, 3c.
  • an insulating layer 10 is applied according to the invention.
  • the insulation layer 10 is further characterized by a closed cell structure, which ensures that due to the humidity in the space 2c, 3c, the insulation material is not damaged. Appropriately, extruded polystyrene is used as insulation material.
  • the thickness of the insulating material 10 is given as 2 cm - 4 cm. The insulating layer minimizes the transmission component of the external radiation, ie the radiation which strikes the housing 1.
  • the transmission heat is thus converted into absorption heat in the outer wall 2a, 3a.
  • this heat is radiated corresponding to T 4 to the environment, where T corresponds to the surface temperature of the outer wall 2a, 3a.
  • the mechanical bi-metal switches 14a, 14b it is possible for the mechanical bi-metal switches 14a, 14b to operate at different temperatures, ie It is achieved that the fans 6a, 6b start at different temperatures. This makes it possible to adjust the air flow within the intermediate spaces 2c, 3c, 7c in accordance with the evolution of heat in the interior 4.

Landscapes

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

Abstract

L'invention concerne un bâti formant une enveloppe du type armoire, destiné au logement de composants générant de la chaleur, en particulier de composants électriques et/ou électroniques, le bâti formant un espace intérieur entouré des parois et d'une couverture, les parois étant doublées, au moins partiellement, par une paroi extérieure et une paroi intérieure, et un espace intermédiaire étant formé entre la paroi extérieure et la paroi intérieure, la couverture fermant l'espace intérieur vers le haut et étant raccordée latéralement à la paroi intérieure de la double paroi. La paroi intérieure reçoit, de l'espace intérieur, au moins une partie de la chaleur générée par les composants, le bâti présentant un premier toit qui vient en prise sur l'espace intermédiaire, ouvert vers le haut, de la double paroi, et qui ferme la paroi extérieure correspondante. Il est prévu pour le refroidissement de l'espace intérieur par production d'un courant d'air à travers l'espace intermédiaire, un ou plusieurs ventilateurs qui sont disposés sous le premier toit, l'espace intermédiaire étant ouvert vers le haut et se trouvant ainsi en communication avec le ou les ventilateurs, et étant ouvert vers le bas, où il se trouve alors en communication avec l'environnement du bâti; en outre, un matériau d'isolation thermique à structure cellulaire fermée est appliqué sur la surface de la paroi extérieure, faisant face à la paroi intérieure.
PCT/DE2009/000613 2008-05-02 2009-04-29 Bâti Ceased WO2009132639A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008022000.0 2008-05-02
DE102008022000A DE102008022000A1 (de) 2008-05-02 2008-05-02 Gehäuse

Publications (4)

Publication Number Publication Date
WO2009132639A2 true WO2009132639A2 (fr) 2009-11-05
WO2009132639A3 WO2009132639A3 (fr) 2010-04-22
WO2009132639A4 WO2009132639A4 (fr) 2010-06-17
WO2009132639A9 WO2009132639A9 (fr) 2011-01-06

Family

ID=41212436

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/000613 Ceased WO2009132639A2 (fr) 2008-05-02 2009-04-29 Bâti

Country Status (2)

Country Link
DE (1) DE102008022000A1 (fr)
WO (1) WO2009132639A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3104837A1 (fr) * 2019-12-17 2021-06-18 Schneider Electric Industries Sas Armoire électrique avec une isolation thermique et procédé de gestion d’une telle armoire
CN113675745A (zh) * 2021-08-25 2021-11-19 安徽富煌电力装备科技有限公司 一种低耗能分布式光伏并网柜

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012011032B4 (de) 2012-06-05 2014-05-15 Martin Hess Passiv gekühltes Instrumenten-Schutzgehäuse
DE102012110001A1 (de) * 2012-10-19 2014-04-24 R.Stahl Schaltgeräte GmbH Explosionsgeschütztes Gehäuse mit einem Ventilator
EP3945761B1 (fr) * 2020-07-30 2024-09-11 Hauff-Technik GRIDCOM GmbH Boitier d'installation de conduites à refroidissement

Family Cites Families (12)

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DE3135471A1 (de) * 1981-09-08 1983-03-24 Joachim Dr.-Ing. 8070 Ingolstadt Hess Bauelementensatz zur erstellung von schutzschraenken
DE29519260U1 (de) 1995-12-05 1996-01-25 Held, Volkmar, Dr., 85591 Vaterstetten Witterungsgeschützter Elektronik-Schaltschrank
DE29609776U1 (de) * 1996-06-01 1996-10-10 Stewing Feinblechtechnik GmbH & Co. KG, 46282 Dorsten Gehäusewand für das Gehäuse und/oder die Tür eines Schrankes, insbesondere Lan- oder Kabelverzweigerschrankes zur Aufnahme elektrischer und/oder elektronischer Baugruppen
DE19623677C2 (de) * 1996-06-14 1999-09-16 Knuerr Mechanik Ag Geräteschrank für elektrische und elektronische Systeme
DE19637436C2 (de) * 1996-09-13 1998-07-23 Siemens Ag Gehäuse zur Aufnahme von nachrichtentechnischen Baugruppen
CN1196238C (zh) 1997-08-05 2005-04-06 奥玛塔克电柜技术股份公司 柜式护罩
US6088225A (en) * 1998-03-17 2000-07-11 Northern Telecom Limited Cabinet with enhanced convection cooling
DE20121934U1 (de) * 2000-03-22 2003-09-18 Weber, Ulrich, Dipl.-Ing. (FH), 78464 Konstanz Schaltschrank, sowie einen Bausatz für einen Schaltschrank
AU2001292150A1 (en) * 2000-10-04 2002-04-15 La Monica, Raffaele A booth for a telecommunication unit
DE10105993B4 (de) * 2001-02-09 2006-03-09 Berthold Sichert Gmbh Bausatz und Verfahren zum Erstellen eines Elektroschrankes für den Außenbereich
FR2844774B1 (fr) * 2002-09-19 2005-06-24 Cit Alcatel Armoire climatisee perfectionnee pour equipements, notamment de telephonie
DE102006024682B4 (de) * 2006-05-19 2008-12-04 Adc Gmbh Geräteschrank mit zwei Kühlkanälen und Anordnung mit dem Geräteschrank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3104837A1 (fr) * 2019-12-17 2021-06-18 Schneider Electric Industries Sas Armoire électrique avec une isolation thermique et procédé de gestion d’une telle armoire
EP3840145A1 (fr) * 2019-12-17 2021-06-23 Schneider Electric Industries SAS Armoire électrique avec une isolation thermique et procédé de gestion d'une telle armoire
CN113675745A (zh) * 2021-08-25 2021-11-19 安徽富煌电力装备科技有限公司 一种低耗能分布式光伏并网柜
CN113675745B (zh) * 2021-08-25 2023-12-19 安徽富煌电力装备科技有限公司 一种低耗能分布式光伏并网柜

Also Published As

Publication number Publication date
WO2009132639A4 (fr) 2010-06-17
DE102008022000A1 (de) 2009-11-26
WO2009132639A9 (fr) 2011-01-06
WO2009132639A3 (fr) 2010-04-22

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