DE3303636A1 - Refrigeration compressor assembly, especially for mobile purposes - Google Patents

Refrigeration compressor assembly, especially for mobile purposes

Info

Publication number
DE3303636A1
DE3303636A1 DE19833303636 DE3303636A DE3303636A1 DE 3303636 A1 DE3303636 A1 DE 3303636A1 DE 19833303636 DE19833303636 DE 19833303636 DE 3303636 A DE3303636 A DE 3303636A DE 3303636 A1 DE3303636 A1 DE 3303636A1
Authority
DE
Germany
Prior art keywords
condenser
compressor
electronics
evaporator
mobile purposes
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.)
Withdrawn
Application number
DE19833303636
Other languages
German (de)
Inventor
Des Erfinders Auf Nennung Verzicht
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.)
Unitechnica Mobilkaelte 7141 Moeglingen De GmbH
Original Assignee
UNITECHNICA KLAUS H REINICKE
UNITECHNICA KLAUS H REINICKE
Unitechnica klaus HReinicke 7000 Stuttgart
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 UNITECHNICA KLAUS H REINICKE, UNITECHNICA KLAUS H REINICKE, Unitechnica klaus HReinicke 7000 Stuttgart filed Critical UNITECHNICA KLAUS H REINICKE
Priority to DE19833303636 priority Critical patent/DE3303636A1/en
Publication of DE3303636A1 publication Critical patent/DE3303636A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/10—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated
    • B60N3/104—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated with refrigerating or warming systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series

Abstract

Cold boxes in motor vehicles are usually supplied from the low-voltage vehicle electrical system. In order to obtain a favourable efficiency of the electric motor driving the compressor, a higher alternating voltage is required, however, so that a voltage converter constructed from electronic components is used. Since this converter is very heat-sensitive, it is cooled according to the invention, by combining it with a second condenser which is inserted in the refrigerant circulation between the evaporator and the compressor.

Description

Kompressorkälteaggregat, insbesondere für mobile Zwecke Compressor refrigeration units, in particular for mobile purposes

Vor allem bei Fahræeugen eingesetzte Kälteaggregate benötigen für den zum Antrieb des Kompressors dienenden Elektromotor einen Spannungswandler, welcher die niedrigen Gleichstromspannungen von 1.2 bis 24 Volt des Bordnetzes in höhere Wechselspannungen umwandelt. Hierzu werden elektronische Bauteile verwendet, wobei sich eine gewisse Verlustwärme ergibt. Da elektronische Bauteile gegen zu große Wärmeentwicklung empfindlich sind, treten, wenn zu den durch die Verlustwärine entstandenen Temperaturen noch eine hohe Außentemperatur hinzu kommt, häufig Ausfälle der Elektronik und damit ein Versagen des Kälteaggregates auf Die Auf gabe der vorlieenden Erfindung ist es, für eine ausreichende Kühlung der Elektronik zu sorgen, so daß diese auch bei hohen Außentemperaturen voll funktionsfähig ist. Dies wird erreicht, in dem erfindungsgeinäß in den Kühlmittelkreislauf zwischen dem Verdampfer und dem Kompressor ein zweiter Verflüssiger zur Kühlung der Elektronik eingeschaltet ist. Durch diesen zweiten Verflüssiger wird die sogenannte Restkglte des Kühlmittels noch ausgenutzt, um zumindest die Eigenwärme der Elektronik zu kompensieren, so daß diese auch extrem hohen Außentemperaturen widerstehen kann.Above all, refrigeration units used at Fahræeugen need for the electric motor used to drive the compressor has a voltage converter, which the low direct current voltages of 1.2 to 24 volts of the on-board network to higher ones Converts alternating voltages. Electronic components are used for this purpose, with there is a certain loss of heat. Because electronic components against too large Heat development are sensitive, occur when to those caused by the heat loss Temperatures, there is also a high outside temperature, often electronics failures and thus a failure of the refrigeration unit The task of The present invention is to ensure adequate cooling of the electronics, so that it is fully functional even at high outside temperatures. this will achieved in the erfindungsgeinäß in the coolant circuit between the evaporator and the compressor switched on a second condenser to cool the electronics is. This second condenser removes the so-called residual coolant still used to at least compensate for the internal heat of the electronics, so that it can withstand extremely high outside temperatures.

Um eine gute Kälteleitung zwischen der Elektronik und dem zweiten Verflüssiger zu erhalten, ist diese unmittelbar an dem zweiten Verflüssiger angebaute Sofern in bekannter Weise der erste Verflüssiger von einem Ventilator gekühlt wird, sind der zweite Verflüssiger, der erste und der Saugventilator räumlich hintereinander angeordnet, wobei zwischen den beiden Verflüssigern ein Luftspalt vorgesehen ist Auf diese Weise wird der Luftstrom, der vom Ventilator über den ersten Verflüssiger angesaugt wird, auch über den zweiten Verflüssiger gefghrt) so daß dieser noch zusätzlich abgekühlt wird.To ensure good cold conduction between the electronics and the second To obtain a condenser, this is directly attached to the second condenser If the first condenser is cooled by a fan in a known manner, are the second condenser, the first and the suction fan spatially one behind the other arranged, with an air gap being provided between the two condensers In this way the air flow from the fan over the first condenser is sucked in, also passed through the second condenser) so that this is additionally is cooled.

Die ZeSehnunE zeigt ein Ausführungsbeispiel der Erfindung. Es stellen dar: Fig. 1 die schematische Darstellung eines Kilhlmittelkreislaufes gemäß der Erfindung, Fig. 2 die schematische räumliche Anordnung des Kälteaggregates.The ZeSehnunE shows an embodiment of the invention. Put it FIG. 1 shows the schematic representation of a coolant circuit according to FIG Invention, 2 shows the schematic spatial arrangement of the refrigeration unit.

Das Kälteaggregat 1 gemäß Fig. 1 setzt sich in üblicher Weise aus dem Kompressor 2, dem ersten Verflüssiger 3, der Drossel 4 und dem Verdampfer 5 zusammen. Zusätzlich ist zwischen dem Verdampfer 5 und dem Kompressor 2 ein zweiter Verflüssiger 6 angeordnet, der zur Kühlung der in Fig. 2 dargestellten Elektronik 7 dient. Diese Elektronik 7 ist erforderlich, um die niedrige Gleichspannung des Bordnetzes eines Fahrzeuges in eine höhere Wechselspannung umzuwandeln, durch welche sich ein besserer Wirkunsgrad für den Elektromotor des Kompressors 2 ergibt.The refrigeration unit 1 according to FIG. 1 is exposed in the usual way the compressor 2, the first condenser 3, the throttle 4 and the evaporator 5 together. In addition, there is a second between the evaporator 5 and the compressor 2 Condenser 6 is arranged for cooling the electronics shown in FIG. 2 7 serves. This electronics 7 is required to handle the low DC voltage of the To convert the on-board network of a vehicle into a higher alternating voltage, through which a better degree of efficiency for the electric motor of the compressor 2 results.

Aus Fig. 2 ist die räumliche Anordnung der einzelnen Teile zueinander ersichtlich. Die Elektronik 7 ist unmittelbar mit dem zweiten Verflüssiger 6 verbunden. Zwischen diesem und dem ersten Verflüssiger 3 ist ein Luftspalt 8 vorgesehen. An den ersten Verflüssiger 3 schließt sich ein Ventilator 9 an, der vom nicht dargestellten Elektromotor des Kompressors 2 angetrieben wird. Der Ventilator 9 saugt die Luft 10 an, welche dabei an der Oberfläche des zweiten Verflüssigers 6 vorbeistreicht. Die Kühlluft 10 wird dann durch den ersten Verflüssiger 3 hindurch geleitet und umströmt den Kompressor 2, um auch diesen zu kühlen.From Fig. 2 is the spatial arrangement of the individual parts to one another evident. The electronics 7 are directly connected to the second condenser 6. An air gap 8 is provided between this and the first condenser 3. At the first condenser 3 is followed by a fan 9, which is not shown Electric motor of the compressor 2 is driven. The fan 9 sucks the air 10, which sweeps past the surface of the second condenser 6. The cooling air 10 is then passed through the first condenser 3 and flows around the compressor 2 in order to also cool it.

Claims (3)

Ansprtlche ;*) KompressorkElteaggregat, insbesondere für mobile Zwecke mit Verdampfer, Verflüssiger und einer Elektronik für die Spannungsumwandlung, dadurch gekennzeichnet, daß in den Kühlmittelkreislauf zwischen dem Verdampfer (5) und dem Kompressor (2) ein zweiter Verflüssiger (6) zur Kühlung der Elektronik (7) eingeschaltet ist. Ansprtlche; *) Compressor power unit, especially for mobile purposes with evaporator, condenser and electronics for voltage conversion, thereby characterized in that in the coolant circuit between the evaporator (5) and the Compressor (2) a second condenser (6) is switched on to cool the electronics (7) is. 2. Kälteaggregat nach Anspruch 1, dadurch gekennzeichnet, daß die Elektronik (7) unmittelbar an den zweiten Verflüssiger (6) angebaut ist.2. Refrigeration unit according to claim 1, characterized in that the Electronics (7) is attached directly to the second condenser (6). 3. Kälteaggregat mit von einem Ventilator gekühltem ersten Verflüssiger nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der zweite Verflüssiger (6), der erste (3) und der Saugventilator (9) räumlich hintereinander angeordnet sind, wobei zwischen beiden Verflüssigern (6, 3) ein Luftspalt (8) vorgesehen ist.3. Cooling unit with a first condenser cooled by a fan according to at least one of the preceding claims, characterized in that the second condenser (6), the first (3) and the suction fan (9) spatially one behind the other are arranged, an air gap (8) being provided between the two condensers (6, 3) is.
DE19833303636 1983-02-03 1983-02-03 Refrigeration compressor assembly, especially for mobile purposes Withdrawn DE3303636A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833303636 DE3303636A1 (en) 1983-02-03 1983-02-03 Refrigeration compressor assembly, especially for mobile purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833303636 DE3303636A1 (en) 1983-02-03 1983-02-03 Refrigeration compressor assembly, especially for mobile purposes

Publications (1)

Publication Number Publication Date
DE3303636A1 true DE3303636A1 (en) 1984-08-09

Family

ID=6189943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833303636 Withdrawn DE3303636A1 (en) 1983-02-03 1983-02-03 Refrigeration compressor assembly, especially for mobile purposes

Country Status (1)

Country Link
DE (1) DE3303636A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205803B1 (en) * 1996-04-26 2001-03-27 Mainstream Engineering Corporation Compact avionics-pod-cooling unit thermal control method and apparatus
WO2005100881A1 (en) * 2004-04-12 2005-10-27 York International Corporation Electronic component cooling system for an air-cooled chiller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205803B1 (en) * 1996-04-26 2001-03-27 Mainstream Engineering Corporation Compact avionics-pod-cooling unit thermal control method and apparatus
WO2005100881A1 (en) * 2004-04-12 2005-10-27 York International Corporation Electronic component cooling system for an air-cooled chiller
US7003971B2 (en) 2004-04-12 2006-02-28 York International Corporation Electronic component cooling system for an air-cooled chiller

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: UNITECHNICA MOBILKAELTE GMBH, 7141 MOEGLINGEN, DE

8141 Disposal/no request for examination