WO2005102750A1 - Motor vehicle air conditioning system - Google Patents

Motor vehicle air conditioning system Download PDF

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Publication number
WO2005102750A1
WO2005102750A1 PCT/EP2005/004222 EP2005004222W WO2005102750A1 WO 2005102750 A1 WO2005102750 A1 WO 2005102750A1 EP 2005004222 W EP2005004222 W EP 2005004222W WO 2005102750 A1 WO2005102750 A1 WO 2005102750A1
Authority
WO
WIPO (PCT)
Prior art keywords
conditioning system
partition
air conditioning
air
motor vehicle
Prior art date
Application number
PCT/EP2005/004222
Other languages
German (de)
French (fr)
Inventor
Klaus Arold
Original Assignee
Daimlerchrysler Ag
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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Publication of WO2005102750A1 publication Critical patent/WO2005102750A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H1/00064—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00514—Details of air conditioning housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H2001/00114—Heating or cooling details
    • B60H2001/00135—Deviding walls for separate air flows

Definitions

  • the invention relates to an air conditioning system of a motor vehicle according to the preamble of patent claim 1.
  • the air conditioning system has two ventilation zones which can be temperature-controlled independently of one another and are separated from one another on the air side by a partition wall downstream of the heat exchanger. If the temperature in the two ventilation zones differs greatly, the temperature can be influenced between the two ventilation zones by heat conduction through the partition between the two ventilation zones and subsequent heat convection in the respective ventilation zone.
  • the object of the invention is to provide an air conditioning system, the ventilation zones of which are largely thermally decoupled from one another.
  • One embodiment of the air conditioning system has a partition which is either constructed from heat-insulating materials or is covered with corresponding heat-insulating materials. Equipping the partition with heat-insulating materials enables the heat conduction in the partition to be reduced without requiring a large amount of structural space.
  • the partition wall can be covered with heat-insulating materials without further ado constructive measures on partitions of existing air conditioning systems are carried out.
  • One embodiment of the air conditioning system has a partition, which is double-walled over its areal extent.
  • the double-walled design of the partition wall enables a very high thermal decoupling of the two ventilation zones.
  • a special embodiment of the air conditioning system has a partition which is made in one piece with the housing of the air conditioning system. With a one-piece design of the partition wall with the housing, there is a particularly low design effort, in particular no separate tools.
  • Fig. 1 is a sketched representation of an embodiment of an air conditioning system according to the invention.
  • FIG. 1 The embodiment of an air conditioning system 1 shown in FIG. 1 has a blower 2, a refrigerant heat exchanger 3 and a heating water heat exchanger 4. These are arranged in series in the order of the air flow. Two cold air channels are arranged parallel to the heating water heat exchanger 4, via which cold air can be guided past the heat exchanger. The air flowing through the heat exchanger is divided into two air flows by a partition 11 of the air conditioning system 1. One of the two cold air ducts with the cold air flap 51 arranged there and the air path of the hot air flow there with the warm air flap forms a temperature control device for the ventilation zone with the air mixing space 5 and the air outlet 53.
  • the partition 11 of the air conditioning system 1 separates the air mixing space 5 from the air mixing space 6. For better thermal separation, the partition 11 is double-walled in the embodiment shown.
  • the blower 2 of the air conditioning system conveys air in the recirculation mode from the cabin or in the fresh air mode from the surroundings of the vehicle into the air conditioning system 1, in which it is first passed through the refrigerant heat exchanger 3. At appropriate temperatures of the air sucked in via the blower 2, heat is extracted from the air flow via the refrigerant heat exchanger 3 in cooling operation.
  • the air stream sucked in cold by the blower 2 or now cooled via the refrigerant heat exchanger 3 is used for the temperature control devices of the two ventilation zones, which are composed of the heat exchanger 4, the two cold air flaps 50 and 61, and the associated hot air flaps 52 and 62. Downstream of the temperature control devices, cold and warm air are mixed in the respectively assigned air mixing rooms 5 and 6 and fed to the vehicle cabin via the outlets 53 and 63.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

An air conditioning system (1) for a motor vehicle has two ventilation zones (5, 6) which can be separately tempered and whose air mixing chambers are separated on the air side by a partition (11) downstream of the hot water heat exchanger (3). In order to improve thermal insulation, the partition (11) has means for reducing heat conductivity through the partition (11).

Description

Klimaanlage eines Kraftfahrzeugs Air conditioning system of a motor vehicle
Die Erfindung betrifft eine Klimaanlage eines Kraftfahrzeugs nach dem Oberbegriff des Patentanspruchs 1.The invention relates to an air conditioning system of a motor vehicle according to the preamble of patent claim 1.
Eine derartige Klimaanlage ist in der gattungsbildenden DE 197 31 980 AI offenbart. Die Klimaanlage weist zwei unabhängig voneinander temperierbare Belüftungszonen auf, die stromab des Wärmetauschers durch eine Trennwand luftseitig voneinander getrennt sind. Bei stark unterschiedlicher Temperierung der beiden Belüftungszonen kann über Wärmeleitung durch die Trennwand zwischen den beiden Belüftungszonen und anschließende Wär ekonvektion in der jeweiligen Belüftungszone eine Temperaturbeeinflussung zwischen den beiden Belüftungszonen erfolgen.Such air conditioning is disclosed in the generic DE 197 31 980 AI. The air conditioning system has two ventilation zones which can be temperature-controlled independently of one another and are separated from one another on the air side by a partition wall downstream of the heat exchanger. If the temperature in the two ventilation zones differs greatly, the temperature can be influenced between the two ventilation zones by heat conduction through the partition between the two ventilation zones and subsequent heat convection in the respective ventilation zone.
Aufgabe der Erfindung ist es eine Klimaanlage zu schaffen, deren Belüftungszonen weitgehend thermisch voneinander entkoppelt sind.The object of the invention is to provide an air conditioning system, the ventilation zones of which are largely thermally decoupled from one another.
Die Aufgabe wird gelöst durch eine Klimaanlage mit den Merkmalen des Anspruchs 1.The object is achieved by an air conditioning system with the features of claim 1.
Eine Ausführungsform der Klimaanlage weist eine Trennwand auf, die entweder aus wärmedämmenden Materialen aufgebaut oder mit entsprechenden wärmedämmenden Materialen belegt ist. Die Ausstattung der Trennwand mit wärmedämmenden Materialen ermöglicht die Reduzierung der Wärmeleitung in der Trennwand ohne größeren konstruktiven Bauraumbedarf. Insbesondere die Belegung der Trennwand mit wärmedämmenden Materialen kann ohne weitere konstruktive Maßnahmen an Trennwänden vorhandener Klimaanlagen vorgenommen werden.One embodiment of the air conditioning system has a partition which is either constructed from heat-insulating materials or is covered with corresponding heat-insulating materials. Equipping the partition with heat-insulating materials enables the heat conduction in the partition to be reduced without requiring a large amount of structural space. In particular, the partition wall can be covered with heat-insulating materials without further ado constructive measures on partitions of existing air conditioning systems are carried out.
Eine Ausführungsform der Klimaanlage weist eine Trennwand auf, welche über ihre flächige Erstreckung doppelwandig ausgeführt ist. Die Doppelwandige Ausführung der Trennwand ermöglicht eine sehr hohe thermische Entkopplung der beiden Belüftungszonen.One embodiment of the air conditioning system has a partition, which is double-walled over its areal extent. The double-walled design of the partition wall enables a very high thermal decoupling of the two ventilation zones.
Eine besondere Ausgestaltung der Klimaanlage weist eine Trennwand auf, die einteilig mit dem Gehäuse der Klimaanlage ausgeführt ist. Bei einteiliger Ausführung der Trennwand mit dem Gehäuse ergibt sich ein besonders niedriger konstruktiver Aufwand, insbesondere keine gesonderten Werkzeuge.A special embodiment of the air conditioning system has a partition which is made in one piece with the housing of the air conditioning system. With a one-piece design of the partition wall with the housing, there is a particularly low design effort, in particular no separate tools.
Ein Ausführungsbeispiel einer erfindungsgemäßen Klimaanlage ist in der Zeichnung dargestellt.An embodiment of an air conditioning system according to the invention is shown in the drawing.
Dabei zeigt:It shows:
Fig. 1 eine skizzierte Darstellung einer Ausführungsform einer erfindungsgemäßen Klimaanlage.Fig. 1 is a sketched representation of an embodiment of an air conditioning system according to the invention.
Die in Figur 1 dargestellte Ausführungsform einer Klimaanlage 1 weist ein Gebläse 2, einen Kältemittelwärmetauscher 3 und einen Heizwasserwärmetauscher 4 auf. Diese sind in benannter Reihenfolge im Luftstrom in Reihe angeordnet. Parallel zum Heizwasserwärmetauscher 4 sind zwei Kaltluftkanäle angeordnet, über die Kaltluft am Wärmetauscher vorbeigeführt werden kann. Die den Wärmetauscher durch strömende Luft wird durch eine Trennwand 11 der Klimaanlage 1 in zwei Luftströme aufgeteilt. Dabei bildet einer der beiden Kaltluftkanäle mit der dort angeordneten Kaltluftklappe 51 und der Luftweg des dortigen Warmluftstroms mit der Warmluftklappe eine Temperiereinrichtung für die Belüftungszone mit dem Luftmischraum 5 und dem Luftaustritt 53. Der andere Kaltluftkanal mit der dortigen Kaltluftklappe 61 bildet zusammen mit dem dortigen Warmluftweg und der zugehörigen Warmluftklappe 62 eine weitere Belüftungszone mit dem Luftmischraum 6 und dem Luftaustritt 63. Die Trennwand 11 der Klimaanlage 1 trennt den Luftmischraum 5 vom Luftmischraum 6 ab. Zur besseren thermischen Trennung ist beim gezeigten Ausführungsbeispiel die Trennwand 11 doppelwandig ausgeführt. Das Gebläse 2 der Klimaanlage fördert Luft im Umluftbetrieb aus der Kabine oder im Frischluftbetrieb aus der Umgebung des Fahrzeugs in die Klimaanlage 1, in welcher sie zunächst über den Kältemittelwärmetauscher 3 geführt wird. Bei entsprechenden Temperaturen der über das Gebläse 2 angesaugten Luft wird über den Kältemittelwärmetauscher 3 im Kühlbetrieb dem Luftstrom Wärme entzogen. Der vom Gebläse 2 kalt angesaugte oder nunmehr über den Kältemittelwärmetauscher 3 abgekühlte Luftstrom wird den Temperiereinrichtungen der beiden Belüftungszonen, welche sich aus dem Wärmetauscher 4, den beiden Kaltluftklappen 50 und 61, den jeweils zugehörigen Warmluftklappen 52 und 62 zusammensetzt. Stromab der Temperiereinrichtungen werden Kalt- und Warmluft in den jeweils zugeordneten Luftmischräumen 5 und 6 vermischt und über die Auslässe 53 beziehungsweise 63 der Fahrzeugkabine zugeführt. The embodiment of an air conditioning system 1 shown in FIG. 1 has a blower 2, a refrigerant heat exchanger 3 and a heating water heat exchanger 4. These are arranged in series in the order of the air flow. Two cold air channels are arranged parallel to the heating water heat exchanger 4, via which cold air can be guided past the heat exchanger. The air flowing through the heat exchanger is divided into two air flows by a partition 11 of the air conditioning system 1. One of the two cold air ducts with the cold air flap 51 arranged there and the air path of the hot air flow there with the warm air flap forms a temperature control device for the ventilation zone with the air mixing space 5 and the air outlet 53. The other cold air duct with the cold air flap 61 there forms together with the warm air path there and the associated hot air flap 62 a further ventilation zone with the Air mixing space 6 and the air outlet 63. The partition 11 of the air conditioning system 1 separates the air mixing space 5 from the air mixing space 6. For better thermal separation, the partition 11 is double-walled in the embodiment shown. The blower 2 of the air conditioning system conveys air in the recirculation mode from the cabin or in the fresh air mode from the surroundings of the vehicle into the air conditioning system 1, in which it is first passed through the refrigerant heat exchanger 3. At appropriate temperatures of the air sucked in via the blower 2, heat is extracted from the air flow via the refrigerant heat exchanger 3 in cooling operation. The air stream sucked in cold by the blower 2 or now cooled via the refrigerant heat exchanger 3 is used for the temperature control devices of the two ventilation zones, which are composed of the heat exchanger 4, the two cold air flaps 50 and 61, and the associated hot air flaps 52 and 62. Downstream of the temperature control devices, cold and warm air are mixed in the respectively assigned air mixing rooms 5 and 6 and fed to the vehicle cabin via the outlets 53 and 63.

Claims

Patentansprüche claims
1. Klimaanlage eines Kraftfahrzeugs mit zwei getrennt voneinander temperierbaren Belüftungszonen, deren Luftmischräume stromab des Heizwasserwärmetauschers durch eine Trennwand luftseitig voneinander getrennt sind, dadurch gekennzeichnet, dass die Trennwand (11) Mittel zur Reduzierung der Wärmeleitung quer zur Trennwand (11) aufweist.1. Air conditioning system of a motor vehicle with two separately controllable ventilation zones, the air mixing spaces downstream of the heating water heat exchanger are separated from one another on the air side by a partition, characterized in that the partition (11) has means for reducing the heat conduction transverse to the partition (11).
2. Klimaanlage nach Anspruch 1, dadurch gekennzeichnet, dass in und/oder an der Trennwand (11) wärmedämmende Materialien vorgesehen sind.2. Air conditioning system according to claim 1, characterized in that heat-insulating materials are provided in and / or on the partition (11).
3. Klimaanlage nach Anspruch 1 oder 2 dadurch gekennzeichnet, dass die Trennwand (11) über ihre flächige Erstreckung doppelwandig ausgeführt ist.3. Air conditioning system according to claim 1 or 2, characterized in that the partition (11) is double-walled over its areal extent.
4. Klimaanlage einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Trennwand (11) einteilig mit dem Gehäuse der Klimaanlage (1) ausgeführt ist. 4. Air conditioning system one of claims 1 to 3, characterized in that the partition (11) is made in one piece with the housing of the air conditioning system (1).
PCT/EP2005/004222 2004-04-22 2005-04-20 Motor vehicle air conditioning system WO2005102750A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410019485 DE102004019485A1 (en) 2004-04-22 2004-04-22 Air conditioning of a motor vehicle
DE102004019485.8 2004-04-22

Publications (1)

Publication Number Publication Date
WO2005102750A1 true WO2005102750A1 (en) 2005-11-03

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PCT/EP2005/004222 WO2005102750A1 (en) 2004-04-22 2005-04-20 Motor vehicle air conditioning system

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DE (1) DE102004019485A1 (en)
WO (1) WO2005102750A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919975C1 (en) * 1999-04-30 2000-09-07 Daimler Chrysler Ag Air conditioner unit for passenger side of vehicle has vaporizer, heat exchanger, air mixer chamber, air inlet and outlet, controls and air deflector flap
FR2804377A1 (en) * 2000-01-28 2001-08-03 Valeo Climatisation AIR CONDITIONING INSTALLATION OF A VEHICLE WITH SEPARATE TREATMENT FOR THE REAR OF THE CABIN
EP1134102A2 (en) * 2000-03-16 2001-09-19 DaimlerChrysler AG Heating or air conditioning installation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919975C1 (en) * 1999-04-30 2000-09-07 Daimler Chrysler Ag Air conditioner unit for passenger side of vehicle has vaporizer, heat exchanger, air mixer chamber, air inlet and outlet, controls and air deflector flap
FR2804377A1 (en) * 2000-01-28 2001-08-03 Valeo Climatisation AIR CONDITIONING INSTALLATION OF A VEHICLE WITH SEPARATE TREATMENT FOR THE REAR OF THE CABIN
EP1134102A2 (en) * 2000-03-16 2001-09-19 DaimlerChrysler AG Heating or air conditioning installation

Also Published As

Publication number Publication date
DE102004019485A1 (en) 2005-11-10

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