US20130145792A1 - Air Conditioning System for Vehicles - Google Patents

Air Conditioning System for Vehicles Download PDF

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Publication number
US20130145792A1
US20130145792A1 US13/515,216 US201013515216A US2013145792A1 US 20130145792 A1 US20130145792 A1 US 20130145792A1 US 201013515216 A US201013515216 A US 201013515216A US 2013145792 A1 US2013145792 A1 US 2013145792A1
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US
United States
Prior art keywords
air
air conditioning
conditioning system
seat
evaporator
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.)
Abandoned
Application number
US13/515,216
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English (en)
Inventor
Takashi Toyama
Nobuhiko Fujii
Risa Nomura
Hirotaka Sakurai
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.)
Sanden Corp
Original Assignee
Sanden Corp
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 Sanden Corp filed Critical Sanden Corp
Assigned to SANDEN CORPORATION reassignment SANDEN CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NOMURA, RISA, SAKURAI, HIROTAKA, FUJII, NOBUHIKO, TOYAMA, TAKASHI
Publication of US20130145792A1 publication Critical patent/US20130145792A1/en
Abandoned legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007Combined heating, ventilating, or cooling devices
    • B60H1/00207Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00285HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for vehicle seats
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3204Cooling devices using compression
    • B60H1/323Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007Combined heating, ventilating, or cooling devices
    • B60H1/00207Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
    • B60H2001/00228Devices in the interior of the passenger compartment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307Component temperature regulation using a liquid flow

Definitions

  • the present invention relates to an air conditioning system for vehicles, and specifically, to an air conditioning system for vehicles which is suitable for energy conservation in general automobiles, enhancement of efficiency of air-conditioning for occupants and securing the front space in the vehicle cabin.
  • An air conditioning system for general automobiles except construction vehicles, etc. usually has a refrigeration circuit provided with a compressor for refrigerant, a condenser, an expansion means (an expansion valve) and an evaporator.
  • a refrigeration circuit provided with these instruments is configured to be generally disposed at a position forward of an instrument panel (such a situation is also referred to as “in the instrument panel” herein) so as to send air from the refrigeration circuit into the vehicle cabin through air outlets of air-conditioning wind provided at various positions.
  • a single unit incorporating an air blower in addition to the expansion means and the evaporator integrally is disposed in or under the instrument panel similarly.
  • the whole inside of the vehicle cabin can be cooled.
  • an air conditioning system is disposed under a manipulator seat in a construction vehicle such as a vehicle with a shovel (e.g. Patent Document 1).
  • a construction vehicle such as a vehicle with a shovel
  • the air conditioning system must be placed under the seat or at the back of the seat, etc. because the installation space of the air conditioning system such as an engine room does not exist in front of the manipulator (the driver) to begin with. Therefore, the object of Patent Document 1 is essentially different from the object of the present invention described later.
  • the object of the present invention is to provide an air conditioning system for vehicles which enables an individual air-conditioning that is extremely efficient in energy terms, and which is configured so as to meet the demand to secure space in the vehicle cabin even when part of the air conditioning system is disposed in the vehicle cabin.
  • an air conditioning system for vehicles is an air conditioning system for vehicles having a refrigeration circuit provided with a compressor, a condenser, an expansion means and an evaporator, characterized in that the compressor and the condenser are disposed in an in-vehicle area outside a vehicle cabin, and the expansion means and evaporator are locally disposed in one or more specific regions selected in the vehicle cabin.
  • the refrigerant compressed by the compressor and condensed by the condenser in the high-pressure part of the refrigeration circuit is decompressed and expanded by the expansion means, and is vaporized in the evaporator.
  • the refrigerant in the evaporator exchanges heat with external air, and the cooled air is used as cooling air for air-conditioning in the vehicle.
  • the above-described expansion means and evaporator are disposed in one or more specific regions selected in the vehicle cabin away from positions of the compressor and the condenser. Therefore, the installation space of the expansion means and evaporator taking charge of air-conditioning can be small and it is possible to achieve reductions in size and in thickness.
  • the expansion means and the evaporator can be disposed at arbitrary positions in the vehicle cabin by routing refrigerant plumbing appropriately because the compressor and the condenser in the refrigeration circuit are connected to the expansion means and the evaporator with the refrigerant plumbing. Therefore, by selecting an appropriate region in the vehicle cabin as the specific region, for example, a region which is other than the foot space of the passenger seat, etc. and is almost a dead space that is not effectively used conventionally, a refrigerated air-conditioning locally in the vicinity of the region (like a spot) through the expansion means and the evaporator which are disposed at the region can be performed.
  • Conditioning local air as needed instead of conditioning the whole air in the vehicle cabin makes it possible to keep a load on the compressor in a requisite minimum range and to achieve energy conservation. Further, as will be described later, if a region such as a region under the seat is selected as the above-described specific region or regions, the space under the instrument panel may not be used, the foot space of the passenger seat can be secured widely, and it is possible to meet the demand to secure space in the front part of the vehicle cabin.
  • a structure may be employed wherein at least one expansion means and one evaporator are assembled into a single unit and the unit or units are provided by a number corresponding to a number of the above-described specific region or regions.
  • a configuration may be employed wherein an air blower is also assembled in each of the unit(s).
  • Such a configuration makes it possible to exchange heat between the air coming from the air blower and the evaporator as needed, and makes it possible to send the air to a desired destination as air for air-conditioning.
  • a configuration may also be employed wherein a heater is also assembled in each of the unit(s). Such a configuration enables heating performed by the heater as needed. And this configuration also makes it possible to exchange heat between the air coming from the air blower and the evaporator and makes it possible to send the air to a desired destination as air for air-conditioning.
  • the air conditioning system for vehicles basically, it is preferred that two or more specific regions selected in the vehicle cabin are configured so that air-conditioning can be performed locally in a specified region out of those specific regions that is needed at that moment.
  • a branch configuration of the refrigeration circuit a branch configuration of refrigerant plumbing. Namely, it is a configuration wherein one compressor and one condenser in the refrigeration circuit are connected to pairs of the expansion means and the evaporator with a branch or branches of the refrigeration circuit.
  • the above-described specific region or regions may include at least a region around a seat for the driver (a region around a seat including a lower portion of the seat), a region in a seat (an inner region of the seat itself) or both of those regions.
  • a region around a seat for the driver a region around a seat including a lower portion of the seat
  • a region in a seat an inner region of the seat itself
  • both of those regions Such a configuration makes it possible to perform spot air-conditioning which is performed only in a region of the seat for the driver, and makes it possible to perform the most efficient air-conditioning in energy consumption when the driver is the only occupant in the vehicle.
  • other region can also be selected and configured as the above-described specific region or regions.
  • a region of a roof panel or its vicinity can be selected as the specific region or regions.
  • the specific region or regions comprise a region around any of occupant's seat including a driver's seat, an inner region of a seat or both of those regions, and the specific region or regions are provided with an air outlet for blowing air-conditioning wind from the back of the seat toward the rear.
  • the unit incorporating at least the expansion means and the evaporator integrally is provided with the driving seat and passenger seat so that each specific region can be air-conditioned, and makes it possible that the rear seat region is air-conditioned as needed by the air-conditioning wind blown from the air outlet provided on the back of the driving seat and passenger seat toward the rear. Therefore, while the number of the units incorporating the expansion means and evaporator integrally is kept in a requisite minimum, the on-demand air-conditionings can be carried out from the local air-conditioning to the air-conditioning of the whole vehicle cabin.
  • the region around the occupant's seat, etc. is configured to be the specific region or regions in the present invention
  • a configuration may be employed wherein an air outlet for blowing air-conditioning wind having a function as an air curtain from a side of the seat toward the front is provided in the specific region or regions.
  • Such a configuration makes it possible that the air-conditioning wind blown from the air outlet flows from the side (e.g. both sides) of the seat toward the front and then flows forward of the occupant as detouring.
  • a comfortable air-conditioned state can be obtained because an atmosphere directly around the occupant can be shielded appropriately from an outer atmosphere in terms of temperature so that the local air-conditioning (spot-like air-conditioning) can be performed most efficiently while a discomfort caused by air-conditioning wind coming into direct contact with skin is not caused.
  • Such an air conditioning system for vehicles according to the present invention is applicable to any kind of vehicles, and is particularly useful in cases where the vehicle comprises an automobile, basically.
  • the region where at least the expansion means and the evaporator are disposed is a selected specific region in the vehicle cabin.
  • a forward region of the vehicle than the instrument panel (for example, inside the engine room) or a region in the rear of the instrument panel can be adopted.
  • a trunk room can also be adopted.
  • the air conditioning system for vehicles can be performed and energy conservation can be achieved as keeping the load on the compressor in a requisite minimum range. Further, by choosing a region under a seat as the specified region or regions in the vehicle cabin where the expansion means and the evaporator are disposed, expansion of the foot space of the passenger seat can be achieved and it is possible to meet the demand to secure space in the front part of the vehicle cabin. Furthermore, more efficient spot-like air conditioning and more comfortable local air conditioning can be carried out if the air-conditioning wind from the specified region has an air-curtain function.
  • FIG. 1 is a schematic vertical sectional view of an air conditioning system for vehicles according to an embodiment of the present invention in a vehicle-mounted state.
  • FIG. 2 is a schematic plan view of an air conditioning system for vehicles according to an embodiment of the present invention in a vehicle-mounted state.
  • FIG. 3 is a schematic diagram showing a configuration example of a unit disposed under a seat.
  • FIG. 1 and FIG. 2 depict an example of a vehicle-mounted state of an air conditioning system for vehicles according to an embodiment of the present invention.
  • symbol 1 depicts the whole air conditioning system for vehicles, and air conditioning system for vehicles 1 is provided with refrigeration circuit 2 in which refrigerant is circulated.
  • Refrigeration circuit 2 is provided with plural local air conditioning units 7 , in which one refrigerant compressor 3 , condenser 4 , expansion valve 5 as an expansion means connected to the compressor 3 and condenser 4 through refrigerant plumbing, and evaporator 6 are assembled into one unit.
  • each local air conditioning unit 7 is disposed locally under each seat 8 including a driver's seat 8 a (a driving seat), and such region under each seat is equivalent to one or more specific regions selected in vehicle cabin 9 as referred to in the present invention.
  • Compressor 3 and condenser 4 is placed on the forward side than instrument panel 10 as an in-vehicle area outside the vehicle cabin, and plural local air conditioning units 7 are placed on the backward side than instrument panel 10 inside the vehicle cabin.
  • air conditioning unit for defrosters 11 is installed below the windshield.
  • Air conditioning unit for defrosters 11 is configured so that the exterior air can also be taken therethrough as well, and each of plural local air conditioning units 7 is basically configured so as to take the interior air (the in-vehicle air) therethrough.
  • the plumbing displayed as solid lines mean high pressure refrigerant plumbing 12
  • the plumbing displayed as dashed lines mean low pressure refrigerant plumbing 13
  • High pressure refrigerant plumbing 12 to respective local air conditioning units 7 are branched at branch portion 14 , and are configured so as to pass the refrigerant only to needed unit 7 through a valve, etc.
  • Low pressure refrigerant plumbing 13 from respective local air conditioning unit 7 are connected to compressor 3 after being joined. Therefore, it is possible to select which local air conditioning unit 7 to be operated.
  • Each local air conditioning unit 7 is configured so that a region in which the unit is installed can be air-conditioned individually and locally.
  • air-conditioning wind 16 and 17 are blown toward the front from the back of the seat, and further, toward the front from the side of the seat to the front of driver 15 as detouring.
  • air-conditioning wind 17 is blown as a flow in air curtain form and is configured so as to shield an atmosphere closely around driver 15 from outer atmosphere in terms of temperature appropriately, raising local air conditioning efficiency in this area. Further, causing discomfort in local air conditioning is prevented because air-conditioning wind 17 is configured not to come into direct contact with driver 15 on the front side.
  • FIG. 1 when local air conditioning unit 7 is installed for driving seat 8 a or passenger seat 8 , it is possible to configure the unit so that it can blow air-conditioning wind partly toward the rear seat.
  • air-conditioning wind 18 is “VENT” air-conditioning wind for the rear seat
  • air-conditioning wind 19 is “FOOT” air-conditioning wind for the rear seat.
  • expansion valve 5 is placed in vehicle cabin 9 .
  • expansion valve 5 can also be placed in the engine room. Such a configuration makes it possible that a larger space in the vehicle cabin can be provided.
  • Each local air conditioning unit 7 is configured, for example, as shown in FIG. 3 .
  • FIG. 3 depicts the case where local air conditioning unit 7 is placed under driving seat 8 a or passenger seat 8 .
  • evaporator 6 air blower 20 which takes air-conditioning air from the vehicle cabin and blows it out toward evaporator 6
  • heater core 21 are provided in unit 7 .
  • Symbol 22 means “VENT” air outlet for air-conditioning wind on seat 8 (to an upper body of an occupant) in unit 7
  • symbol 23 means “FOOT” air outlet for air-conditioning wind to the feet of the occupant, respectively.
  • the air blown from “FOOT” air outlet 23 can be regulated by “FOOT” damper 24 provided in unit 7 .
  • the BILEVEL mode of “VENT”/“FOOT”, in which air-conditioning wind is blown from both air outlets 22 and 23 is also available.
  • local air conditioning unit 7 into which expansion valve 5 and evaporator 6 of refrigeration circuit 2 are incorporated is placed in each specific region or regions where local air conditioning is required in the vehicle cabin so as to operate air conditioning efficiently only in a region where air conditioning is required at that time with requisite minimum energy. Therefore, it is possible to provide energy conservation for the vehicle as a whole and to seek to cut down on fuel.
  • each local air conditioning unit 7 placed in the specific region or regions can be configured to be a small thin unit so as to install unit 7 easily and appropriately by making effective use of an unused space, for example, a space under a seat.
  • an unused space for example, a space under a seat.
  • the foot space for the passenger seat can be secured widely and it is possible to meet the demand for securing space in the front part of the vehicle cabin effectively.
  • the air conditioning system for vehicles according to the present invention is particularly suitable for automobiles, and more realistically, suitable as a structure capable of local air conditioning around the driver.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
US13/515,216 2009-12-10 2010-12-08 Air Conditioning System for Vehicles Abandoned US20130145792A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009-280327 2009-12-10
JP2009280327A JP2011121461A (ja) 2009-12-10 2009-12-10 車両用空調装置
PCT/JP2010/007152 WO2011070780A1 (ja) 2009-12-10 2010-12-08 車両用空調装置

Publications (1)

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US20130145792A1 true US20130145792A1 (en) 2013-06-13

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US13/515,216 Abandoned US20130145792A1 (en) 2009-12-10 2010-12-08 Air Conditioning System for Vehicles

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US (1) US20130145792A1 (de)
EP (1) EP2511114A4 (de)
JP (1) JP2011121461A (de)
CN (1) CN102639346A (de)
WO (1) WO2011070780A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140213167A1 (en) * 2013-01-30 2014-07-31 Visteon Global Technologies, Inc. Supplemental thermal storage
US9145040B2 (en) * 2012-02-23 2015-09-29 Ford Global Technologies, Llc Heat exchanger for an air conditioning system
CN107891727A (zh) * 2017-10-20 2018-04-10 广东劲达制冷集团有限公司 积木组合式新能源电动客车空调机组
CN110182016A (zh) * 2018-02-22 2019-08-30 本田技研工业株式会社 车辆用空调装置
CN110770056A (zh) * 2017-06-20 2020-02-07 株式会社电装 座椅空调装置
US11091075B2 (en) * 2017-01-24 2021-08-17 Denso Corporation Seat air conditioner
US11718145B2 (en) * 2019-09-09 2023-08-08 Hyundai Motor Company HVAC system having air-conditioning channels for target seats

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5447486B2 (ja) 2010-12-07 2014-03-19 株式会社デンソー 車両用空調装置
FR2980400B1 (fr) * 2011-09-23 2014-02-21 Valeo Systemes Thermiques Installation de ventilation, de chauffage et/ou de climatisation a faible consommation d'energie
JP5906502B2 (ja) * 2013-07-02 2016-04-20 パナソニックIpマネジメント株式会社 乗物用暖房システム
US20150231947A1 (en) * 2014-02-17 2015-08-20 GM Global Technology Operations LLC Systems and methods for ventilation
JP6772879B2 (ja) * 2017-02-14 2020-10-21 株式会社デンソー シート空調装置
CN107415636B (zh) * 2017-08-07 2023-08-08 珠海格力电器股份有限公司 一种汽车、车用空调系统及车用空调控制方法
JP2020066377A (ja) * 2018-10-26 2020-04-30 本田技研工業株式会社 車両用空調装置

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US5450894A (en) * 1991-11-14 1995-09-19 Nippondenso Co., Ltd. Air conditioning apparatus for a vehicle

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US2134724A (en) * 1936-02-29 1938-11-01 Houde Eng Corp Heating and cooling system for vehicles
US5450894A (en) * 1991-11-14 1995-09-19 Nippondenso Co., Ltd. Air conditioning apparatus for a vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9145040B2 (en) * 2012-02-23 2015-09-29 Ford Global Technologies, Llc Heat exchanger for an air conditioning system
US20140213167A1 (en) * 2013-01-30 2014-07-31 Visteon Global Technologies, Inc. Supplemental thermal storage
US9914339B2 (en) * 2013-01-30 2018-03-13 Hanon Systems Supplemental thermal storage
US11091075B2 (en) * 2017-01-24 2021-08-17 Denso Corporation Seat air conditioner
CN110770056A (zh) * 2017-06-20 2020-02-07 株式会社电装 座椅空调装置
CN107891727A (zh) * 2017-10-20 2018-04-10 广东劲达制冷集团有限公司 积木组合式新能源电动客车空调机组
CN110182016A (zh) * 2018-02-22 2019-08-30 本田技研工业株式会社 车辆用空调装置
CN110182016B (zh) * 2018-02-22 2022-08-02 本田技研工业株式会社 车辆用空调装置
US11718145B2 (en) * 2019-09-09 2023-08-08 Hyundai Motor Company HVAC system having air-conditioning channels for target seats

Also Published As

Publication number Publication date
CN102639346A (zh) 2012-08-15
EP2511114A1 (de) 2012-10-17
EP2511114A4 (de) 2014-06-11
JP2011121461A (ja) 2011-06-23
WO2011070780A1 (ja) 2011-06-16

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