EP2714441A1 - Circuit de pompe à chaleur pour véhicules - Google Patents

Circuit de pompe à chaleur pour véhicules

Info

Publication number
EP2714441A1
EP2714441A1 EP12715032.4A EP12715032A EP2714441A1 EP 2714441 A1 EP2714441 A1 EP 2714441A1 EP 12715032 A EP12715032 A EP 12715032A EP 2714441 A1 EP2714441 A1 EP 2714441A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
heat pump
pump cycle
branch
heat exchanger
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Withdrawn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
EP12715032.4A
Other languages
German (de)
English (en)
Inventor
Florian Schneider
Robert Herbolzheimer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP2714441A1 publication Critical patent/EP2714441A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899—Controlling the flow of liquid in a heat pump system
    • B60H1/00921—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant does not change and there is an extra subcondenser, e.g. in an air duct
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H2001/00949—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising additional heating/cooling sources, e.g. second evaporator
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/01—Heaters

Definitions

  • the present invention relates to a heat pump cycle according to the preamble of claim 1.
  • a tumble dryer with a heat pump cycle in which a heater is arranged.
  • the heat pump cycle has - considered in the flow direction of the heat pump cycle flowing through the refrigerant - a compressor, a condenser, an additional heat exchanger, an evaporator and a heater.
  • the heater is between an exit of the evaporator and a suction port of the compressor, i. serially arranged in the heat pump cycle.
  • the heating is intended to raise the temperature in the heat pump cycle at the beginning of the drying process or in operating phases in which there is a risk that the compressor draws in liquid refrigerant to keep the refrigerant vaporous.
  • the object of the invention is to provide a heat pump cycle which is also suitable for other areas of technology.
  • the starting point of the invention is the idea to heat a vehicle, ie the passenger compartment of a vehicle and / or vehicle components, such as a high-voltage accumulator oa, which must be tempered by means of a heat pump assembly.
  • a vehicle ie the passenger compartment of a vehicle and / or vehicle components, such as a high-voltage accumulator oa, which must be tempered by means of a heat pump assembly.
  • the efficiency of a heat pump arrangement is dependent on the temperature of the ambient air used as the heat source. At low outdoor temperatures, such as in winter, the efficiency or the performance figure of a conventional heat pump system is so low that the use of a heat pump system is relatively uneconomical.
  • a central idea of the invention is to equip a vehicle with a heat pump cycle which, in contrast to conventional heat pump circuits, additionally has an electrical heating device by means of which heat can be supplied to the refrigerant flowing through the heat pump cycle.
  • a heat pump cycle which, in contrast to conventional heat pump circuits, additionally has an electrical heating device by means of which heat can be supplied to the refrigerant flowing through the heat pump cycle.
  • the heat pump cycle has two refrigerant branches through which refrigerant flows, namely a first refrigerant branch and a second refrigerant branch arranged or "connected" in parallel therewith.
  • a heat pump cycle according to the invention comprises a refrigerant compressor with a pressure outlet which is in fluid communication with an inlet of a first heat exchanger via a refrigerant line.
  • the first heat exchanger is intended to deliver heat from the refrigerant to the passenger compartment and / or the vehicle component to be heated (such as a high-voltage storage). in the flow direction of the refrigerant after the first heat exchanger is in the fluid system of the heat pump cycle a
  • branch point at which branches the heat pump cycle in the two above-mentioned refrigerant branches.
  • a second heat exchanger may be provided in a first of the two refrigerant branches.
  • the second heat exchanger acts as an evaporator. Heat contained in the ambient air or in the wind is released via the second heat exchanger to the cooler refrigerant flowing through the second heat exchanger.
  • the electric heating device is arranged in the second refrigerant branch arranged in parallel to the first refrigerant branch, which is a very central difference compared to the above-mentioned EP 1 983 095 A2.
  • the second refrigerant branch has a refrigerant tube through which refrigerant flows, or a component designed in another way and traversed by refrigerant, which can be heated by the electric heating device.
  • Each of the two refrigerant branches may be associated with a shut-off device via which the relevant refrigerant branch can be shut off.
  • the first refrigerant branch can be shut off via the associated obturator, so that the entire circulating refrigerant flows through the second refrigerant branch.
  • both refrigerant branches are flowed through in parallel by refrigerant.
  • the second refrigerant branch is shut off via the associated shut-off and the entire heat input via the second heat exchanger, ie on the heat contained in the ambient heat, takes place.
  • At least one expansion element is arranged.
  • an expansion element is arranged in each of the two refrigerant branches. It may be provided that a first expansion element is arranged in the first refrigerant branch in front of the second heat exchanger and a second expansion element is arranged in front of the heating device in the second refrigerant branch.
  • only a single expansion element can be provided, which is arranged in front of the "branch point" at which the heat pump cycle branches into the two refrigerant branches.
  • the second heat exchanger is arranged in the vehicle such that it is flowed through or through air or the wind. It can, for.
  • an electric fan may be provided which actively blows air through the second heat exchanger.
  • the second refrigerant branch or its components is not or at least not directly from the airstream flows through or are, but protected in the vehicle, especially in the engine compartment of the vehicle is or are.
  • Heating device in a "bypass to the second heat exchanger" is structurally very easy to implement, z. B. as "electrically heated refrigerant pipe”.
  • the invention is particularly suitable for hybrid or pure electric vehicles.
  • the heat pump assembly may be used to heat high voltage components, such as high voltage components.
  • a high-voltage memory or power electronics to be tempered high-voltage components can thus be placed anywhere in the vehicle. They do not necessarily have to be arranged in the vehicle interior.
  • FIGURE 1 shows the basic principle of the invention in a schematic representation.
  • FIG. 1 shows a heat pump cycle 1 with a refrigerant compressor 2, which is connected via a fluid line 3 to an inlet 4 of a first heat exchanger 5. From the refrigerant compressor 2 compressed and correspondingly heated refrigerant flows through the first heat exchanger 5 and thereby transfers heat to a passenger compartment of a vehicle not shown here or to a vehicle component to be heated (not shown) of the vehicle, which is symbolized by an arrow 6.
  • An outlet 7 of the first heat exchanger 5 is connected via a refrigerant line 8 to a branch point 9 at which the heat pump cycle 1 branches into a first refrigerant branch 10 and a second refrigerant branch 11.
  • the first refrigerant branch 10 has a first expansion element 12, in which the refrigerant coming from the first heat exchanger 5 is expanded and cooled.
  • the cooled refrigerant coming from the first expansion element 12 flows through a second heat exchanger 13, which absorbs heat from the ambient air, which is symbolized by arrows 14.
  • the second heat exchanger 13 may be arranged in the vehicle so that it is directly circulates or flows through the airstream.
  • An outlet 15 of the second heat exchanger 13 is in fluid communication via a fluid line 16 and a collector 17 with a suction port of the refrigerant compressor 2.
  • the second refrigerant branch 11 is arranged parallel to the first refrigerant branch 10 and, viewed in the flow direction of the refrigerant, has a second expansion element 19 and a component 21, which can be heated by an electrical heating device 20 and is flowed through by refrigerant.
  • the component 21 may be, for example, a simple refrigerant pipe through which the refrigerant flows, or may also be a heat exchanger.
  • a shut-off device may be provided in each of the two refrigerant branches 10, 11, e.g. in the region between the branching point 9 and the first or second expansion element 12, 19.
  • the expansion elements 12, 19 may be designed as lockable expansion elements. In this way, in principle, three different operating states can be "driven", namely:
  • a first operating state in which the two refrigerant branches 10, 1 1 are flowed through in parallel by refrigerant.
  • Refrigerant branch 10 flows, which is e.g. at high ambient air temperatures (transition season or summer operation) may be useful.
  • a third operating state in which the first refrigerant branch 10 is shut off and the entire refrigerant volume flow flows through the second refrigerant branch 11, which is e.g. at low ambient air temperatures (winter operation) can be useful.
  • the refrigerant may be preheated by the electric heater 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

Circuit de pompe à chaleur (1) pour chauffer l'habitacle d'un véhicule et/ou un élément de véhicule, un dispositif de chauffage (20) électrique étant prévu pour réchauffer le fluide frigorigène circulant dans le circuit de pompe à chaleur.
EP12715032.4A 2011-05-26 2012-04-04 Circuit de pompe à chaleur pour véhicules Withdrawn EP2714441A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011076507A DE102011076507A1 (de) 2011-05-26 2011-05-26 Wärmepumpenkreislauf für Fahrzeuge
PCT/EP2012/056172 WO2012159814A1 (fr) 2011-05-26 2012-04-04 Circuit de pompe à chaleur pour véhicules

Publications (1)

Publication Number Publication Date
EP2714441A1 true EP2714441A1 (fr) 2014-04-09

Family

ID=45976337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12715032.4A Withdrawn EP2714441A1 (fr) 2011-05-26 2012-04-04 Circuit de pompe à chaleur pour véhicules

Country Status (5)

Country Link
US (1) US20140007605A1 (fr)
EP (1) EP2714441A1 (fr)
CN (1) CN103402797A (fr)
DE (1) DE102011076507A1 (fr)
WO (1) WO2012159814A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013214267A1 (de) 2013-07-22 2015-01-22 Bayerische Motoren Werke Aktiengesellschaft Wärmepumpen-Anlage für ein Fahrzeug, insbesondere ein Elektro- oder Hybridfahrzeug, sowie Verfahren zum Betrieb einer solchen Wärmepumpen-Anlage
AU2015229661B2 (en) * 2014-03-10 2019-05-30 Tiger Tool International Incorporated Heating and cooling systems and methods for truck cabs
US10401376B2 (en) * 2014-03-28 2019-09-03 Honeywell International Inc. Co-location of high-maintenance air data system components into one LRU
WO2017132260A1 (fr) 2016-01-25 2017-08-03 Tiger Tool Intenational Incorporated Systèmes et procédés de climatisation destinés à un véhicule
US11407283B2 (en) 2018-04-30 2022-08-09 Tiger Tool International Incorporated Cab heating systems and methods for vehicles
WO2020097124A1 (fr) 2018-11-05 2020-05-14 Tiger Tool International Incorporated Systèmes et procédés de refroidissement pour cabines de véhicule
DE102019204492A1 (de) * 2019-03-29 2020-10-01 Siemens Mobility GmbH Verfahren zum Betreiben einer Wärmepumpe, Wärmepumpe, Belüftungsanlage und Fahrzeug
KR20210017119A (ko) * 2019-08-07 2021-02-17 현대자동차주식회사 차량용 히트펌프 시스템

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0136768B1 (ko) * 1992-07-16 1998-07-01 강진구 냉난방 공기조화기의 난방장치
EP0842798B1 (fr) * 1996-11-15 2005-10-05 Calsonic Kansei Corporation Système de climatisation de véhicule.
DE19839477B4 (de) * 1998-08-29 2005-12-29 Robert Bosch Gmbh Vorrichtung zur Wärmeableitung in einem Kraftfahrzeug
NO320664B1 (no) * 2001-12-19 2006-01-16 Sinvent As System for oppvarming og kjoling av kjoretoy
JP2009184493A (ja) * 2008-02-06 2009-08-20 Calsonic Kansei Corp 車両用空気調和システム
EP1983095B1 (fr) 2008-08-08 2012-09-05 V-Zug AG Sèche-linge doté d'un chauffage dans le circuit de pompe à chaleur
JP2010234847A (ja) * 2009-03-30 2010-10-21 Japan Climate Systems Corp 車両用空調装置
DE102011107404A1 (de) * 2010-07-08 2012-01-12 Ipetronik Gmbh & Co. Kg Klimatisieren eines Innenraums eines Elektrofahrzeugs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2012159814A1 *

Also Published As

Publication number Publication date
CN103402797A (zh) 2013-11-20
WO2012159814A1 (fr) 2012-11-29
US20140007605A1 (en) 2014-01-09
DE102011076507A1 (de) 2012-11-29

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