JP5571843B2 - Automotive battery temperature control system - Google Patents

Automotive battery temperature control system Download PDF

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JP5571843B2
JP5571843B2 JP2013500737A JP2013500737A JP5571843B2 JP 5571843 B2 JP5571843 B2 JP 5571843B2 JP 2013500737 A JP2013500737 A JP 2013500737A JP 2013500737 A JP2013500737 A JP 2013500737A JP 5571843 B2 JP5571843 B2 JP 5571843B2
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vehicle
heat
storage agent
battery
temperature control
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JPWO2012114439A1 (en
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禎夫 関谷
弘章 松嶋
忠史 尾坂
悠基 秋山
利一 内田
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Hitachi Ltd
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    • 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
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • 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
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/34—Cabin temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/46—Heat pumps, e.g. for cabin heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Secondary Cells (AREA)
  • Control Of Temperature (AREA)

Description

本発明は、車載用バッテリの温度制御システムに関する。   The present invention relates to a temperature control system for a vehicle-mounted battery.

車載用バッテリの温度制御システムとしては、例えば、特許文献１に記載のように、車内の空気を吸い込んでバッテリを冷却するバッテリ冷却装置が知られている。
一方、燃料電池温度制御システムとして、特許文献２に記載のように、内面に蓄熱壁、外面に断熱壁を設けたハウジング内に、燃料電池セルを収納し、さらにハウジングに熱交換部を設け、熱交換部において、ハウジング外からの導入ガスによって燃焼ガスを加熱する燃料電池組立体が知られている。As a temperature control system for a vehicle-mounted battery, for example, as described in Patent Document 1, a battery cooling device that sucks air in a vehicle and cools the battery is known.
On the other hand, as described in Patent Document 2, as a fuel cell temperature control system, a fuel cell is housed in a housing in which a heat storage wall is provided on the inner surface and a heat insulating wall is provided on the outer surface, and a heat exchange part is provided in the housing. 2. Description of the Related Art There is known a fuel cell assembly that heats combustion gas with introduced gas from the outside of a housing in a heat exchange section.

特開２００４−２２０７９９号公報JP 2004-220799 A 特開２００５−１５８５３０号公報JP 2005-158530 A

車載用バッテリは、低温では発電効率が低下し、高温では電極、電解液等の劣化が顕著であるため、適正な温度制御が必要である。
しかし、特許文献１記載のバッテリ冷却装置では、バッテリを加熱することはできず、必ずしも適正温度は得られない。An in-vehicle battery has low power generation efficiency at a low temperature, and electrode, electrolyte, and the like are remarkably deteriorated at a high temperature. Therefore, appropriate temperature control is necessary.
However, in the battery cooling device described in Patent Document 1, the battery cannot be heated, and an appropriate temperature cannot always be obtained.

また、燃料電池は、発熱量の６０％の廃熱を要する程、発熱量が大きく、その温度制御システムは、発熱のはるかに少ない車載用バッテリには適用できない。   In addition, the fuel cell generates a large amount of heat as it requires waste heat of 60% of the heat generation, and the temperature control system cannot be applied to an in-vehicle battery that generates much less heat.

（１）請求項１の発明による車載用バッテリの温度制御システムは、車載用のバッテリを収納するバッテリ収納容器と、前記バッテリ収納容器内において、前記バッテリと熱交換可能な蓄熱剤と、前記蓄熱剤と第１冷媒との間で熱交換して前記蓄熱剤の温度を調節する蓄熱剤温度調節装置と、前記蓄熱剤の温度を検出する蓄熱剤温度検出器と、第２冷媒を循環させて車室内への調和空気を生成するヒートポンプ空調装置と、前記蓄熱剤温度調節装置の前記第１冷媒と前記ヒートポンプ空調装置の前記第２冷媒との間で熱交換を行う中間熱交換装置と、前記蓄熱剤温度検出器によって検出された蓄熱剤温度が所定値になったときに、前記蓄熱剤温度調節装置および前記ヒートポンプ空調装置により前記第１冷媒の温度を調整して前記蓄熱剤の温度を調整する制御装置とを備え、前記バッテリ収納容器には、車室内に連通する車室内入口開口および車室外と連通する車室外入口開口を有し、前記バッテリ収納容器内に冷却風を流通させるための入口開口と、車室内に連通する車室内出口開口および車室外と連通する車室外出口開口を有し、前記バッテリ収納容器内に冷却風を流通させるための出口開口と、前記入口開口から導入した冷却風を流通させて前記出口開口から吐き出す風路とが設けられ、前記車室内入口開口と前記車室内出口開口の開閉を制御する車室内用ダンパ装置と、前記車室外入口開口と前記車室外出口開口の開閉を制御する車室外用ダンパ装置とをさらに備え、前記制御装置は、前記蓄熱剤温度が第１の基準値以上となったとき、前記車室外入口開口と前記車室外出口開口を開放するように前記車室外用ダンパ装置を駆動制御し、前記車室内入口開口と前記車室内出口開口が閉じるように前記車室内用ダンパ装置を駆動制御するものである。 (1) A temperature control system for a vehicle-mounted battery according to the invention of claim 1 includes a battery storage container that stores a vehicle-mounted battery, a heat storage agent that can exchange heat with the battery in the battery storage container, and the heat storage. A heat storage agent temperature adjusting device that adjusts the temperature of the heat storage agent by exchanging heat between the agent and the first refrigerant, a heat storage agent temperature detector that detects the temperature of the heat storage agent, and circulating a second refrigerant. A heat pump air conditioner that generates conditioned air into the passenger compartment, an intermediate heat exchange device that exchanges heat between the first refrigerant of the heat storage agent temperature control device and the second refrigerant of the heat pump air conditioner; when the heat storage agent temperature detected by the heat storage agent temperature detector reaches a predetermined value, the temperature of the heat storage agent to adjust the temperature of the first refrigerant by the heat storage agent temperature control unit and the heat pump air conditioning system And a controller for adjusting, in the battery container has a vehicle exterior inlet opening communicating with the vehicle interior inlet and cabin communicates with the vehicle interior, circulating the cooling air to the battery housing container A vehicle interior outlet opening communicating with the vehicle interior and a vehicle exterior outlet opening communicating with the exterior of the vehicle interior; an outlet opening for circulating cooling air into the battery storage container; and the entrance opening An air passage that circulates the introduced cooling air and exhausts it from the outlet opening, and is provided with a vehicle interior damper device that controls opening and closing of the vehicle interior entrance opening and the vehicle interior exit opening; A vehicle exterior damper device that controls opening and closing of the vehicle exterior outlet opening, and the control device, when the heat storage agent temperature becomes equal to or higher than a first reference value, the vehicle exterior entrance opening and the vehicle exterior exit. The car outdoor damper device so as to open the opening drives and controls, the vehicle interior damper device as the vehicle interior inlet opening and the passenger compartment outlet opening is closed is for controlling the drive.

本発明によれば、蓄熱剤により、車両の停止時にもバッテリの温度が一定に保持され、再起動時にも放電効率が高い。また、バッテリからの放熱量が急激に増加しても、蓄熱剤の熱量で吸収することができる。   According to the present invention, the heat storage agent keeps the battery temperature constant even when the vehicle is stopped, and the discharge efficiency is high even when the vehicle is restarted. Moreover, even if the heat dissipation from the battery increases rapidly, it can be absorbed by the heat amount of the heat storage agent.

本発明に係る温度制御システムの第１実施携帯を示すシステム構成図。The system block diagram which shows the 1st implementation mobile of the temperature control system which concerns on this invention. 図１の温度制御システムのブロック図Block diagram of the temperature control system of FIG. 図１のバッテリ収納器を示す縦断面図。The longitudinal cross-sectional view which shows the battery container of FIG. 図１の温度制御システムによる第１冷却運転モードを示す配管系統図。The piping system figure which shows the 1st cooling operation mode by the temperature control system of FIG. 図１の温度制御システムによる第２冷却運転モードを示す配管系統図。The piping system figure which shows the 2nd cooling operation mode by the temperature control system of FIG. 図１の温度制御システムによる第３冷却運転モードを示す配管系統図。The piping system figure which shows the 3rd cooling operation mode by the temperature control system of FIG. 図１の温度制御システムによる第４冷却運転モードを示す配管系統図。The piping system figure which shows the 4th cooling operation mode by the temperature control system of FIG. 図１の温度制御システムによる第５冷却運転モードを示す配管系統図。The piping system figure which shows the 5th cooling operation mode by the temperature control system of FIG. 図１の温度制御システムによる第１暖房運転を示す配管系統図。The piping system figure which shows the 1st heating operation by the temperature control system of FIG. 図１の温度制御システムによる第２暖房運転を示す配管系統図。The piping system figure which shows the 2nd heating operation by the temperature control system of FIG. 図１の温度制御システムによる第３暖房運転を示す配管系統図。The piping system figure which shows the 3rd heating operation by the temperature control system of FIG. 図１の温度制御システムによる第４暖房運転を示す配管系統図。The piping system figure which shows the 4th heating operation by the temperature control system of FIG. 図１の温度制御システムの処理を示すフローチャート。The flowchart which shows the process of the temperature control system of FIG. 図１の温度制御システムによる蓄熱剤温度の変化を示すグラフ。The graph which shows the change of the thermal storage agent temperature by the temperature control system of FIG. 本発明に係る温度制御システムの運転モード選択条件を示す一覧表。The list which shows the operation mode selection conditions of the temperature control system which concerns on this invention. 選択された運転モードにおける各種機器の動作を説明する一覧表。A list for explaining the operation of various devices in the selected operation mode. 本発明に係る温度制御システムの第２実施形態におけるバッテリ収納器を示す縦断面図。The longitudinal cross-sectional view which shows the battery container in 2nd Embodiment of the temperature control system which concerns on this invention. 図１５のバッテリ収納器の冷却用伝熱管を示す斜視図。The perspective view which shows the heat exchanger tube for cooling of the battery container of FIG.

以下、本発明による車載用バッテリの温度制御システムの実施形態を添付図面に従って詳細に説明する。本発明によるシステムは、ハイブリッド自動車（ＨＶ）、プラグインハイブリッド自動車（ＰＨＶ）、電気自動車（ＥＶ）の車載バッテリに適用して好適である。   Embodiments of a temperature control system for a vehicle-mounted battery according to the present invention will be described below in detail with reference to the accompanying drawings. The system according to the present invention is suitable for application to an in-vehicle battery of a hybrid vehicle (HV), a plug-in hybrid vehicle (PHV), and an electric vehicle (EV).

［第１実施形態］
図１、図３に示すように、車載用バッテリ２１は、車両１におけるバッテリ収納容器２内に収納され、バッテリ収納容器２にはブライン回路５が接続されている。車両１には、暖冷房等のためのヒートポンプシステム３が設けられ、ヒートポンプシステム３の主要部はヒートポンプ用機械室４に収納されている。ヒートポンプ用機械室４内には中間熱交換器４８（図４〜図１２）が設けられ、ヒートポンプシステム３とブライン回路５とは相互に熱交換可能である。すなわち、実施形態では、ブライン回路５およびヒートポンプシステム３は、それぞれの冷媒（第１冷媒、第２冷媒）により熱交換機能を実現する基幹の構成要素である。 [First Embodiment]
As shown in FIGS. 1 and 3, the in-vehicle battery 21 is stored in a battery storage container 2 in the vehicle 1, and a brine circuit 5 is connected to the battery storage container 2. The vehicle 1 is provided with a heat pump system 3 for heating and cooling or the like, and a main part of the heat pump system 3 is housed in a heat pump machine room 4. An intermediate heat exchanger 48 (FIGS. 4 to 12) is provided in the heat pump machine room 4, and the heat pump system 3 and the brine circuit 5 can exchange heat with each other. In other words, in the embodiment, the brine circuit 5 and the heat pump system 3 are basic components that realize a heat exchange function by the respective refrigerants (first refrigerant and second refrigerant).

図３に示すように、バッテリ収納容器２は断熱材２５によって形成され、内部のバッテリ２１の周囲には蓄熱剤２２が設けられている。バッテリ２１からの放熱は蓄熱剤２２に伝達され、かつ、断熱材２５の保熱効果によって、蓄熱剤２２に効果的に保有される。   As shown in FIG. 3, the battery storage container 2 is formed of a heat insulating material 25, and a heat storage agent 22 is provided around the battery 21 inside. The heat release from the battery 21 is transmitted to the heat storage agent 22 and is effectively held in the heat storage agent 22 by the heat retaining effect of the heat insulating material 25.

蓄熱剤２２は蓄熱温度が３０〜５０℃のものであれば各種材料を使用可能である。たとえば、パラフィンのｎ−エイコサン（融点３６.４℃）、ｎ−ドコサン（融点４４℃）、脂肪酸のラウリン酸（融点４４℃）、無機水和塩の臭化カルシウム水和物（融点３８℃）等の単独あるいは混合物が使用される。
断熱材２５としては、たとえば、グラスウール等の無機材を内部に封入し、周囲をアルミ箔で覆い、内部を真空にしたもの、あるいは、グラスウール等の無機材を内部に封入し、周囲をステンレスの板で構成し、内部を真空にしたものが使用される。
このような構成を採用する容器内にバッテリを収容することにより、車両１の停止時、とくに気温の低い季節の夜間停止時にもバッテリ２１が保温される。
なお、金属製のケースの内側に断熱材を設けた断熱性容器を作製してもよい。The heat storage agent 22 can use various materials as long as the heat storage temperature is 30 to 50 ° C. For example, paraffin n-eicosane (melting point 36.4 ° C.), n-docosan (melting point 44 ° C.), fatty acid lauric acid (melting point 44 ° C.), inorganic hydrated calcium bromide hydrate (melting point 38 ° C.) Etc. are used alone or as a mixture.
As the heat insulating material 25, for example, an inorganic material such as glass wool is enclosed inside, the periphery is covered with aluminum foil, the inside is evacuated, or an inorganic material such as glass wool is enclosed inside, and the periphery is made of stainless steel. A plate made of a vacuum inside is used.
By storing the battery in a container that employs such a configuration, the battery 21 is kept warm even when the vehicle 1 is stopped, particularly when the vehicle is stopped at night during a low temperature season.
In addition, you may produce the heat insulation container which provided the heat insulating material inside the metal case.

蓄熱剤２２内には、ブライン（例えば、エチレングリコール）が流動する冷却用伝熱管２３が埋設され、蓄熱剤２２の保有熱によって、冷却用伝熱管２３内のブラインを加熱することができる。すなわち、ブラインと蓄熱剤２２との間で熱交換することができる。冷却用伝熱管２３の外周には、フィン２４が、冷却用伝熱管２３長手方向に並列して突設され、蓄熱剤２２と冷却用伝熱管２３との熱伝達効率が高められている。
蓄熱剤２２には、バッテリ２１に近接して蓄熱剤温度検出器２６が設けられ、蓄熱剤温度Ｔを検出できる。A cooling heat transfer tube 23 in which brine (for example, ethylene glycol) flows is embedded in the heat storage agent 22, and the brine in the cooling heat transfer tube 23 can be heated by the retained heat of the heat storage agent 22. That is, heat exchange can be performed between the brine and the heat storage agent 22. On the outer periphery of the cooling heat transfer tube 23, fins 24 project in parallel with the longitudinal direction of the cooling heat transfer tube 23, and the heat transfer efficiency between the heat storage agent 22 and the cooling heat transfer tube 23 is increased.
The heat storage agent 22 is provided with a heat storage agent temperature detector 26 in the vicinity of the battery 21 so that the heat storage agent temperature T can be detected.

図１に示すように、ヒートポンプシステム３は、室内空調システム６における空調用室内熱交換器(エバポレータ)６１、および空調用熱交換器(コンデンサ)７に接続されている。一方、ブライン回路５は、室内空調システム６におけるブライン用室内熱交換器６２に接続されている。
室内空調システム６には室内ファン６３が設けられ、室内空調システム６によって得られた暖気、冷気を室内に供給することができる。As shown in FIG. 1, the heat pump system 3 is connected to an indoor heat exchanger (evaporator) 61 for air conditioning in an indoor air conditioning system 6 and a heat exchanger (condenser) 7 for air conditioning. On the other hand, the brine circuit 5 is connected to a brine indoor heat exchanger 62 in the indoor air conditioning system 6.
The indoor air conditioning system 6 is provided with an indoor fan 63, and warm air and cold air obtained by the indoor air conditioning system 6 can be supplied into the room.

空調用熱交換器７はブライン冷却用ラジエータ８に隣接配置され、空調用熱交換器７およびラジエータ８は、室外ファン９によって室外から取り込まれる外気で冷却される。
室内空調システム６は空調制御器９０によって操作・設定され、後述する制御部１００によって、制御される。The air-conditioning heat exchanger 7 is disposed adjacent to the brine cooling radiator 8, and the air-conditioning heat exchanger 7 and the radiator 8 are cooled by the outdoor air taken in from the outdoor by the outdoor fan 9.
The indoor air conditioning system 6 is operated and set by the air conditioning controller 90 and controlled by the control unit 100 described later.

図１〜図３に示すように、室内空調システム６および空調用熱交換器７には、外気温度検出器１１、車内温度検出器１２がそれぞれ設けられ、ブライン回路５には、ブライン温度検出器５６が設けられている。これによって、外気温度Ｔｏｕｔ、室内空調システム６の空調温度Ｔｉｎおよびブライン温度Ｔｐを検出することができる。   As shown in FIGS. 1 to 3, the indoor air-conditioning system 6 and the air-conditioning heat exchanger 7 are each provided with an outside air temperature detector 11 and an in-vehicle temperature detector 12, and the brine circuit 5 has a brine temperature detector. 56 is provided. Thus, the outside air temperature Tout, the air conditioning temperature Tin of the indoor air conditioning system 6 and the brine temperature Tp can be detected.

外気温度検出器１１、車内温度検出器１２、蓄熱剤温度検出器２６、ブライン温度検出器５６は制御部１００に接続されている。制御部１００は、外気温度検出器１１、車内温度検出器１２、蓄熱剤温度検出器２６、ブライン温度検出器５６によって検出された、外気温度Ｔｏｕｔ、車内温度Ｔｉｎ、蓄熱剤温度Ｔ、ブライン温度Ｔｐに基づいて、ヒートポンプシステム３、ブライン回路５、室内空調システム６を制御する。
なお、実施形態の各種構成要素へは、バッテリ２１の電力を供給する。しかし、充電時は商用電源から給電することもできる。The outside air temperature detector 11, the vehicle interior temperature detector 12, the heat storage agent temperature detector 26, and the brine temperature detector 56 are connected to the control unit 100. The control unit 100 includes an outside air temperature detector 11, an in-vehicle temperature detector 12, a heat storage agent temperature detector 26, and a brine temperature detector 56, and the outside air temperature Tout, the vehicle interior temperature Tin, the heat storage agent temperature T, and the brine temperature Tp. Based on this, the heat pump system 3, the brine circuit 5, and the indoor air conditioning system 6 are controlled.
In addition, the electric power of the battery 21 is supplied to the various components of the embodiment. However, power can be supplied from a commercial power source during charging.

図４〜図１２は本実施形態の各種運転モードにおける冷媒とブラインの流通経路を説明する回路図である。はじめに、図４を参照して全体構成を説明する。
ヒートポンプシステム３は冷媒（例えば、フロン系のＲ１３４ａ、Ｒ１２３４ｙｆ）を加圧送給する圧縮機４１を備える。圧縮機４１は、たとえば電動可変容量型圧縮機であり、回転数と吐出容量を調整して冷暖房能力を任意に設定できる。圧縮機４１には、その低圧側（吸込側）４１ａまたは高圧側（吐出側）４１ｂを中間熱交換器４８の一端に接続する３方弁４３が接続されている。３方弁４３は、実線で示す切替位置と、破線で示す切替位置のいずれかに選択的に切り替えられる。３方弁４３が実線で示す切替位置に切換えられているとき、圧縮機４１の低圧側（吸込側）４１ａは中間熱交換器４８の一端に接続される。３方弁４３が破線で示す切替位置に切り替えられているとき、圧縮機４１の高圧側（吐出側）４１ｂは中間熱交換器４８の一端に接続される。4 to 12 are circuit diagrams for explaining the flow paths of refrigerant and brine in various operation modes of the present embodiment. First, the overall configuration will be described with reference to FIG.
The heat pump system 3 includes a compressor 41 that pressurizes and feeds refrigerants (for example, Freon-based R134a and R1234yf). The compressor 41 is, for example, an electric variable capacity compressor, and can arbitrarily set the cooling / heating capacity by adjusting the rotation speed and the discharge capacity. A three-way valve 43 that connects the low pressure side (suction side) 41 a or the high pressure side (discharge side) 41 b to one end of the intermediate heat exchanger 48 is connected to the compressor 41. The three-way valve 43 is selectively switched between a switching position indicated by a solid line and a switching position indicated by a broken line. When the three-way valve 43 is switched to the switching position indicated by the solid line, the low pressure side (suction side) 41 a of the compressor 41 is connected to one end of the intermediate heat exchanger 48. When the three-way valve 43 is switched to the switching position indicated by the broken line, the high pressure side (discharge side) 41 b of the compressor 41 is connected to one end of the intermediate heat exchanger 48.

圧縮機４１には、低圧側（吸込側）４１ａと高圧側（吐出側）４１ｂに四方弁４２が接続されている。四方弁４２は、実線の切替位置と破線の切替位置の２位置に切換え可能である。実線の切替位置においては、圧縮機４１の低圧側（吸込側）４１ａが空調用室内熱交換器６１の一端に接続され、圧縮機４１の高圧側（吐出側）４１ｂが空調用室外熱交換器７の一端に接続される。破線の切替位置においては、圧縮機４１の低圧側（吸込側）４１ａが空調用室外熱交換器７の一端に接続され、圧縮機４１の高圧側（吐出側）４１ｂが空調用室内熱交換器６１の一端に接続される。   A four-way valve 42 is connected to the compressor 41 at a low pressure side (suction side) 41a and a high pressure side (discharge side) 41b. The four-way valve 42 can be switched between two positions: a solid line switching position and a broken line switching position. At the switching position of the solid line, the low pressure side (suction side) 41a of the compressor 41 is connected to one end of the air conditioning indoor heat exchanger 61, and the high pressure side (discharge side) 41b of the compressor 41 is the outdoor heat exchanger for air conditioning. 7 is connected to one end. At the broken line switching position, the low pressure side (suction side) 41a of the compressor 41 is connected to one end of the air conditioning outdoor heat exchanger 7, and the high pressure side (discharge side) 41b of the compressor 41 is the air conditioning indoor heat exchanger. 61 is connected to one end.

空調用室外熱交換器７の他端には、膨張弁４５を介してレシーバタンク４７が接続され、空調用室内熱交換器６１の他端には膨張弁４４を介してレシーバタンク４７が接続されている。一方、中間熱交換器４８の他端には、膨張弁４６を介してレシーバタンク４７が接続されている。   A receiver tank 47 is connected to the other end of the air conditioning outdoor heat exchanger 7 via an expansion valve 45, and a receiver tank 47 is connected to the other end of the air conditioning indoor heat exchanger 61 via an expansion valve 44. ing. On the other hand, a receiver tank 47 is connected to the other end of the intermediate heat exchanger 48 via an expansion valve 46.

中間熱交換器４８の一端は、二方弁５７を介してラジエータ８の一端に接続されるとともに、二方弁５８を介してラジエータ８の他端に接続されている。   One end of the intermediate heat exchanger 48 is connected to one end of the radiator 8 through a two-way valve 57 and is connected to the other end of the radiator 8 through a two-way valve 58.

ラジエータ８の他端と二方弁５８とを接続する管路には、発熱機器冷却熱交換器１０の入口側が接続されている。発熱機器冷却熱交換器１０は、たとえばインバータ、回転電機、蓄電装置などを冷却するための熱交換器である。発熱機器冷却熱交換器１０の出口側は、二方弁５２を介して冷却用伝熱管２３の入口側に接続されている。冷却用伝熱管２３の出口側には、二方弁５５を介してポンプ５１の吸込側が接続され、ポンプ５１の吐出側は中間熱交換器４８の他端に接続されている。   An inlet side of the heat generating device cooling heat exchanger 10 is connected to a pipe line connecting the other end of the radiator 8 and the two-way valve 58. The heat generating equipment cooling heat exchanger 10 is a heat exchanger for cooling, for example, an inverter, a rotating electrical machine, a power storage device, and the like. The outlet side of the heat generating device cooling heat exchanger 10 is connected to the inlet side of the cooling heat transfer tube 23 via a two-way valve 52. The suction side of the pump 51 is connected to the outlet side of the cooling heat transfer tube 23 via a two-way valve 55, and the discharge side of the pump 51 is connected to the other end of the intermediate heat exchanger 48.

二方弁５５とポンプ５１の吸込側とを接続する管路には、ブライン用室内熱交換器６２の一端が接続され、冷却用伝熱管２３の出口側と二方弁５５とを接続する管路には、二方弁５４を介して、ブライン用室内熱交換器６２の他端が接続されている。さらに、冷却用伝熱管２３の出口側と二方弁５５とを接続する管路と、発熱機器冷却熱交換器１０の出口側と二方弁５２とを接続する管路とが、二方弁５３を介して相互に接続されている。 One end of the brine indoor heat exchanger 62 is connected to a pipe line connecting the two-way valve 55 and the suction side of the pump 51, and a pipe connecting the outlet side of the cooling heat transfer pipe 23 and the two-way valve 55. The other end of the brine indoor heat exchanger 62 is connected to the passage through a two-way valve 54 . Furthermore, a pipe line connecting the outlet side of the cooling heat transfer pipe 23 and the two-way valve 55 and a pipe line connecting the outlet side of the heat generating equipment cooling heat exchanger 10 and the two-way valve 52 are two-way valves. 53 are connected to each other.

以下、種々の条件における、温度制御システムの運転状態を説明する。
なお、本発明に係る温度制御システムの運転モード選択条件は図１５に示し、選択された運転モードにおける各種機器の動作は図１６に示す。Hereinafter, the operation state of the temperature control system under various conditions will be described.
In addition, the operation mode selection conditions of the temperature control system according to the present invention are shown in FIG. 15, and the operations of various devices in the selected operation mode are shown in FIG.

［第１冷却運転モード］
バッテリ２１からの放熱によって、蓄熱剤２２が昇温し、その温度Ｔが融点Ｔ０（たとえば、３０℃〜５０℃）よりも高い所定の温度Ｔ１を超えたとき、図４に示す第１冷却運転モードによる冷却動作が実行される。第１冷却運転モードでは、制御部１００は、ブライン回路５をラジエータ８に接続し、ブラインを外気によって冷却する。[First cooling operation mode]
When the heat storage agent 22 is heated by the heat radiation from the battery 21 and the temperature T exceeds a predetermined temperature T1 higher than the melting point T0 (for example, 30 ° C. to 50 ° C.), the first cooling operation shown in FIG. The cooling operation according to the mode is executed. In the first cooling operation mode, the control unit 100 connects the brine circuit 5 to the radiator 8 and cools the brine with outside air.

図４において、第１冷却運転モードによる冷却動作では、制御部１００の制御の下、二方弁５２、５５、５７が開弁し、二方弁５３、５４、５８が閉弁する。そのため、ポンプ５１によって、ブラインが、ラジエータ８と、発熱機器冷却熱交換器１０と、冷却用伝熱管２３との間を循環する。これによって、ブラインがファン９によって導入された外気で冷却され、冷却されたブラインによって、インバータなどの発熱体と蓄熱剤２２が冷却される。 In FIG. 4, in the cooling operation in the first cooling operation mode, the two-way valves 52, 55 , and 57 are opened and the two-way valves 53, 54 , and 58 are closed under the control of the control unit 100. Therefore, the brine is circulated among the radiator 8, the heat generating device cooling heat exchanger 10, and the cooling heat transfer tube 23 by the pump 51. As a result, the brine is cooled by the outside air introduced by the fan 9, and the heating element such as an inverter and the heat storage agent 22 are cooled by the cooled brine.

第１冷却運転モードでは、電動圧縮機４１、および電動室内ファン６３は停止し、したがって、ヒートポンプシステム３と室内空調システム６も停止している。そして、第１冷却運転モードによる冷却動作では、ファン９とポンプ５１の電力のみで、インバータなどの発熱体と蓄熱剤２２を冷却でき、消費電力が少ない。   In the first cooling operation mode, the electric compressor 41 and the electric indoor fan 63 are stopped, and thus the heat pump system 3 and the indoor air conditioning system 6 are also stopped. In the cooling operation in the first cooling operation mode, the heating element such as the inverter and the heat storage agent 22 can be cooled only by the electric power of the fan 9 and the pump 51, and the power consumption is low.

［第２冷却運転モード］
外気温度が高いとき、あるいは、急速充電等、バッテリ２１の発熱量が大のとき、第１冷却運転モードから図５で説明する第２冷却運転モードに切り換わる。第２冷却運転モードによる冷却動作では、蓄熱剤２２の温度Ｔが所定の温度Ｔ２（＞Ｔ１）を超えたとき、蓄熱剤２２を急速冷却する。第２冷却運転モードは第１冷却運転モードに引き続いて切り換わるモードである。[Second cooling operation mode]
When the outside air temperature is high, or when the amount of heat generated by the battery 21 is large, such as rapid charging, the first cooling operation mode is switched to the second cooling operation mode described with reference to FIG. In the cooling operation in the second cooling operation mode, when the temperature T of the heat storage agent 22 exceeds a predetermined temperature T2 (> T1), the heat storage agent 22 is rapidly cooled. The second cooling operation mode is a mode that switches following the first cooling operation mode.

第２冷却運転モードによる冷却動作では、ブライン回路５のブラインとヒートポンプシステム３の冷媒とを中間熱交換器４８において熱交換する。また、ヒートポンプシステム３の冷媒を空調用室外熱交換器７において、外気によって冷却する。   In the cooling operation in the second cooling operation mode, heat is exchanged between the brine in the brine circuit 5 and the refrigerant in the heat pump system 3 in the intermediate heat exchanger 48. The refrigerant of the heat pump system 3 is cooled by outside air in the outdoor heat exchanger 7 for air conditioning.

図５において、第２冷却運転モードによる冷却動作では、制御部１００の制御の下、ブライン回路５において、二方弁５２、５５、５８が開弁し、二方弁５３、５４、５７が閉弁する。そのため、ポンプ５１によって、ブラインが、冷却用伝熱管２３から中間熱交換器４８、発熱機器冷却熱交換器１０を通過して、冷却用伝熱管２３に戻るように循環する。
一方、ヒートポンプシステム３において、制御部１００の制御の下、四方弁４２および３方弁４３を実線で示す切替位置とするとともに、膨張弁４４を閉じ、膨張弁４５、４６を所定開度に開く。これにより、圧縮機４１から吐出される冷媒が空調用室外熱交換器７、レシーバタンク４７、中間熱交換器４８を循環する。 In FIG. 5, in the cooling operation in the second cooling operation mode, under the control of the control unit 100, the two-way valves 52, 55 , 58 are opened and the two-way valves 53, 54 , 57 are closed in the brine circuit 5. I speak. Therefore, the brine is circulated by the pump 51 so as to return from the cooling heat transfer tube 23 to the cooling heat transfer tube 23 through the intermediate heat exchanger 48 and the heat generating device cooling heat exchanger 10.
On the other hand, in the heat pump system 3, under the control of the control unit 100, the four-way valve 42 and the three-way valve 43 are set to the switching positions indicated by solid lines, the expansion valve 44 is closed, and the expansion valves 45 and 46 are opened to a predetermined opening. . Accordingly, the refrigerant discharged from the compressor 41 circulates through the outdoor heat exchanger 7 for air conditioning, the receiver tank 47, and the intermediate heat exchanger 48.

空調用室外熱交換器７において、室外ファン９で送風された空気との熱交換により冷媒は放熱され、高圧の液冷媒となる。その後、冷媒は膨張弁４５で減圧され、余剰分がレシーバタンク４７に滞留しつつ、膨張弁４６で再び減圧され、中間熱交換器４８でブライン回路５内のブラインと熱交換する。これによりブラインが冷却される。ここで、冷媒はガス冷媒となり、３方弁４３を通り圧縮機４１に戻る。
冷媒との熱交換によって蓄熱剤２２の温度がＴ３以下となったときに、第２冷却運転モードによる冷却動作が停止される。In the outdoor heat exchanger 7 for air conditioning, the refrigerant is radiated by heat exchange with the air blown by the outdoor fan 9, and becomes high-pressure liquid refrigerant. Thereafter, the refrigerant is depressurized by the expansion valve 45, while the surplus portion is retained in the receiver tank 47, the refrigerant is depressurized again by the expansion valve 46, and heat exchange is performed with the brine in the brine circuit 5 by the intermediate heat exchanger 48. This cools the brine. Here, the refrigerant becomes a gas refrigerant and returns to the compressor 41 through the three-way valve 43.
When the temperature of the heat storage agent 22 becomes T3 or less due to heat exchange with the refrigerant, the cooling operation in the second cooling operation mode is stopped.

上述したように、圧縮機４１は、たとえば電動可変容量型圧縮機であり、回転数と吐出容量を任意に調整して冷却能力を任意に設定できる。また、膨張弁４４、４５、４６の開度によっても冷却能力を任意に設定できる。従って、高外気温度、急速充電の際にも、バッテリ２１の温度を所定の温度に保持できる。   As described above, the compressor 41 is, for example, an electric variable capacity compressor, and can arbitrarily set the cooling capacity by arbitrarily adjusting the rotation speed and the discharge capacity. Further, the cooling capacity can be arbitrarily set by the opening degree of the expansion valves 44, 45, 46. Therefore, the temperature of the battery 21 can be maintained at a predetermined temperature even during high outside air temperature and rapid charging.

第１冷却運転モード、第２冷却運転モードによる冷却動作は、冷房（空調）運転の要求がないときに実行される。そして、蓄熱剤２２の温度ＴがＴ１以上のときに第１冷却運転モード、Ｔ２以上のときに第２冷却運転モードが選択される。   The cooling operation in the first cooling operation mode and the second cooling operation mode is executed when there is no request for cooling (air conditioning) operation. The first cooling operation mode is selected when the temperature T of the heat storage agent 22 is equal to or higher than T1, and the second cooling operation mode is selected when the temperature T is equal to or higher than T2.

図１４に示すように、たとえば夜間充電時（時刻ｔ０〜ｔ４）において、蓄熱剤２２の温度ＴがＴ１に達した時刻ｔ１から、冷却システムは第１冷却運転モードに切り換わる。図１４のラジエータ冷却の区間である。時刻ｔ１から蓄熱剤２２の冷却が開始され、蓄熱剤２２の温度上昇が緩やかになる。その後、さらに蓄熱剤２２の温度Ｔが上昇し、温度Ｔ２に達した時刻ｔ２から、冷却システムは第２冷却運転モードに切り換わる。図１４のヒートポンプ冷却の区間である。時刻ｔ２から第２冷却運転モードが開始される。これによって、蓄熱剤２２の温度Ｔは融点Ｔ０まで急速に低下し、大部分の冷媒が凝固するまで融点Ｔ０一定に保たれる。凝固後はさらに低下する。そして、温度ＴがＴ３に達すると第２冷却運転モードが停止する。すなわち、冷媒による蓄熱剤２２の冷却動作が停止される。   As shown in FIG. 14, for example, at night charging (time t0 to t4), the cooling system switches to the first cooling operation mode from time t1 when the temperature T of the heat storage agent 22 reaches T1. It is the area of the radiator cooling of FIG. Cooling of the heat storage agent 22 is started from time t1, and the temperature rise of the heat storage agent 22 becomes moderate. Thereafter, the temperature T of the heat storage agent 22 further increases, and the cooling system switches to the second cooling operation mode from time t2 when the temperature T2 is reached. It is the area of the heat pump cooling of FIG. The second cooling operation mode is started from time t2. As a result, the temperature T of the heat storage agent 22 rapidly decreases to the melting point T0, and is maintained constant at the melting point T0 until most of the refrigerant solidifies. It further decreases after solidification. When the temperature T reaches T3, the second cooling operation mode is stopped. That is, the cooling operation of the heat storage agent 22 by the refrigerant is stopped.

充電開始時の蓄熱剤２２の温度Ｔは、一般にその融点Ｔ０であるが、低外気温の下に長期間放置されたときにはより低温（図１４の曲線Ｃ１）になることもある。また、充電完了後、運転開始までに、低外気温の下に長期間放置されたときにも、温度低下（図１４の曲線Ｃ２）が見られることがある。運転が行われないまま蓄電装置が長時間放置され、放電が生じたときには、充電サイクルは再度実行され、適宜繰り返される。   The temperature T of the heat storage agent 22 at the start of charging is generally the melting point T0, but may be lower (curve C1 in FIG. 14) when left for a long time under a low outside air temperature. In addition, a temperature drop (curve C2 in FIG. 14) may be observed even when the battery is left for a long time under a low outside air temperature after the completion of charging and before the start of operation. When the power storage device is left unattended for a long time and discharge occurs, the charging cycle is executed again and repeated as appropriate.

車内の空調制御器９０から冷房が要求され、空調負荷が比較的大きい条件下では、第３冷却運転モードまたは第４冷却運転モードに切り換わる。   Under the condition that the air conditioning controller 90 in the vehicle requires cooling and the air conditioning load is relatively large, the mode is switched to the third cooling operation mode or the fourth cooling operation mode.

［第３冷却運転モード］
車内の空調制御器９０から冷房が要求され、かつ、蓄熱剤２２の温度ＴがＴ１に到達しないときは、蓄熱剤２２の冷却を行う必要がない。このときは図６で説明する第３冷却運転モードが選択され、車室内の冷房のみが行われる。[Third cooling operation mode]
When cooling is requested from the air conditioning controller 90 in the vehicle and the temperature T of the heat storage agent 22 does not reach T1, it is not necessary to cool the heat storage agent 22. At this time, the third cooling operation mode described in FIG. 6 is selected, and only the cooling of the vehicle interior is performed.

図６において、第３冷却運転モードによる冷却動作では、制御部１００の制御の下、ヒートポンプシステム３において、四方弁４２および３方弁４３が実線で示す切替位置に切り替えられ、膨張弁４４、４５が所定開度に開弁される。このとき、圧縮機４１、室外ファン９、室内ファン６３が駆動され、圧縮機４１によって、冷媒が空調用室外熱交換器７、レシーバタンク４７、空調用室内熱交換器６１を循環する。   In FIG. 6, in the cooling operation in the third cooling operation mode, under the control of the control unit 100, the four-way valve 42 and the three-way valve 43 are switched to the switching positions indicated by the solid lines in the heat pump system 3, and the expansion valves 44, 45. Is opened to a predetermined opening. At this time, the compressor 41, the outdoor fan 9, and the indoor fan 63 are driven, and the refrigerant circulates through the air-conditioning outdoor heat exchanger 7, the receiver tank 47, and the air-conditioning indoor heat exchanger 61 by the compressor 41.

空調用室外熱交換器７において、室外ファン９で送風された空気との熱交換により冷媒が放熱され、高圧の液冷媒となる。その後、冷媒は膨張弁４５で減圧され、余剰分がレシーバタンク４７に滞留しつつ、膨張弁４４で再び減圧されて空調用室内熱交換器６１に流入する。室内ファン６３で送風された空気は空調用室内熱交換器６１で冷却され、低圧のガス冷媒となって、四方弁４２を通った後、圧縮機４１に戻る。
第３冷却運転モードによる冷却動作は、冷房要求が解除されたときに停止する。なお、蓄熱剤２２の温度ＴがＴ１≦Ｔ＜Ｔ２のときは第４冷却運転モードに移行する。In the outdoor heat exchanger 7 for air conditioning, the refrigerant is radiated by heat exchange with the air blown by the outdoor fan 9, and becomes high-pressure liquid refrigerant. Thereafter, the refrigerant is decompressed by the expansion valve 45, and the surplus is retained in the receiver tank 47, while being decompressed again by the expansion valve 44 and flows into the air conditioning indoor heat exchanger 61. The air blown by the indoor fan 63 is cooled by the air conditioning indoor heat exchanger 61, becomes a low-pressure gas refrigerant, passes through the four-way valve 42, and returns to the compressor 41.
The cooling operation in the third cooling operation mode stops when the cooling request is canceled. When the temperature T of the heat storage agent 22 is T1 ≦ T <T2, the process proceeds to the fourth cooling operation mode.

［第４冷却運転モード］
車内の空調制御器９０から冷房が要求され、かつ、蓄熱剤２２の温度ＴがＴ２に到達したときは、蓄熱剤２２の冷却も併せて行う必要がある。そこで、図７で説明する第４冷却運転モードが選択され、冷房と蓄熱剤２２の冷却との双方が実行される。[Fourth cooling operation mode]
When cooling is required from the air conditioning controller 90 in the vehicle and the temperature T of the heat storage agent 22 reaches T2, it is necessary to cool the heat storage agent 22 as well. Therefore, the fourth cooling operation mode described in FIG. 7 is selected, and both cooling and cooling of the heat storage agent 22 are executed.

図７において、第４冷却運転モードによる冷却動作では、制御部１００の制御の下、図４の第１冷却運転モードと同様、二方弁５２、５５、５７が開弁し、二方弁５３、５４、５８が閉弁される。そのため、ポンプ５１によって、ブラインがラジエータ８と発熱機器冷却熱交換機１０と冷却用伝熱管２３との間を循環する。これによって、ブラインがファン９によって導入された外気で冷却され、冷却されたブラインによって、蓄熱剤２２が冷却される。 In FIG. 7, in the cooling operation in the fourth cooling operation mode, the two-way valves 52, 55, and 57 are opened under the control of the control unit 100 as in the first cooling operation mode in FIG. , 54 and 58 are closed. Therefore, the brine is circulated among the radiator 8, the heat generating device cooling heat exchanger 10, and the cooling heat transfer tube 23 by the pump 51. As a result, the brine is cooled by the outside air introduced by the fan 9, and the heat storage agent 22 is cooled by the cooled brine.

さらに、第４冷却運転モードによる冷却動作では、制御部１００の制御の下、ヒートポンプシステム３において、四方弁４２および３方弁４３が実線の切替位置に切り替わり、膨張弁４４、４５が所定開度に開弁される。その結果、圧縮機４１によって、冷媒が空調用室外熱交換器７、レシーバタンク４７、空調用室内熱交換器６１を循環する。
第４冷却運転モードは、冷房要求が解除されたときは、蓄熱剤温度Ｔに応じて、第１冷却運転モードまたは第２冷却運転モードに移行する。また、Ｔ＜Ｔ１となったとき第３冷却運転モードに移行する。さらに、Ｔ２≦Ｔとなったとき第５冷却運転モードに移行する。Further, in the cooling operation in the fourth cooling operation mode, under the control of the control unit 100, in the heat pump system 3, the four-way valve 42 and the three-way valve 43 are switched to the solid line switching position, and the expansion valves 44 and 45 have a predetermined opening degree. Is opened. As a result, the refrigerant circulates through the air conditioning outdoor heat exchanger 7, the receiver tank 47, and the air conditioning indoor heat exchanger 61 by the compressor 41.
The fourth cooling operation mode shifts to the first cooling operation mode or the second cooling operation mode according to the heat storage agent temperature T when the cooling request is canceled. Further, when T <T1, the third cooling operation mode is entered. Furthermore, when T2 ≦ T, the fifth cooling operation mode is entered.

［第５冷却運転モード］
車内の空調制御器９０から冷房が要求され、かつ、蓄熱剤２２の温度ＴがＴ２に到達したときは、冷房と蓄熱剤２２の急速冷却との両者を実行する必要がある。そこで、図８で説明する第５冷却運転モードが選択される。第５冷却運転モードは、第２冷却運転モードと第３冷却運転モードによる冷却動作を実行するものである。[Fifth cooling operation mode]
When cooling is requested from the air conditioning controller 90 in the vehicle and the temperature T of the heat storage agent 22 reaches T2, it is necessary to execute both cooling and rapid cooling of the heat storage agent 22. Therefore, the fifth cooling operation mode described in FIG. 8 is selected. In the fifth cooling operation mode, the cooling operation is performed by the second cooling operation mode and the third cooling operation mode.

図８において、第５冷却運転モードによる冷却動作では、制御部１００の制御の下、第２冷却運転モードを示す図５と同様に、ブライン回路５において、二方弁５２、５５、５８が開弁し、二方弁５３、５４、５７が閉弁する。そのため、ポンプ５１によって、ブラインが、冷却用伝熱管２３から中間熱交換器４８、発熱機器冷却熱交換器１０を通過して、冷却用伝熱管２３に戻るように循環する。 In FIG. 8, in the cooling operation in the fifth cooling operation mode, the two-way valves 52, 55, and 58 are opened in the brine circuit 5 under the control of the control unit 100 as in FIG. 5 showing the second cooling operation mode. The two-way valves 53, 54 and 57 are closed. Therefore, the brine is circulated by the pump 51 so as to return from the cooling heat transfer tube 23 to the cooling heat transfer tube 23 through the intermediate heat exchanger 48 and the heat generating device cooling heat exchanger 10.

さらに図５と同様、第５冷却運転モードによる冷却動作では、制御部１００の制御の下、ヒートポンプシステム３において、四方弁４２および３方弁４３が実線の切替位置に切り替わるとともに、膨張弁４５、４６が所定開度に開弁される。その結果、圧縮機４１によって、冷媒が空調用室外熱交換器７、レシーバタンク４７、中間熱交換器４８を循環する。
一方、図５と異なり、膨張弁４４は所定開度に開かれ、冷媒はレシーバタンク４７から空調用室内熱交換器６１に送給される。そして、冷媒は、空調用室内熱交換器６１から四方弁４２を経て圧縮機４１に戻される。
冷媒の一部はレシーバタンク４７から中間熱交換器４８に流れ、ブライン回路５のブラインを冷却する。これによって、冷媒はガス冷媒となり、３方弁４３から圧縮機４１に戻る。Further, similarly to FIG. 5, in the cooling operation in the fifth cooling operation mode, under the control of the control unit 100, in the heat pump system 3, the four-way valve 42 and the three-way valve 43 are switched to the solid line switching position, and the expansion valve 45, 46 is opened to a predetermined opening. As a result, the refrigerant circulates through the air-conditioning outdoor heat exchanger 7, the receiver tank 47, and the intermediate heat exchanger 48 by the compressor 41.
On the other hand, unlike FIG. 5, the expansion valve 44 is opened to a predetermined opening, and the refrigerant is supplied from the receiver tank 47 to the indoor heat exchanger 61 for air conditioning. Then, the refrigerant is returned from the air conditioning indoor heat exchanger 61 to the compressor 41 via the four-way valve 42.
A part of the refrigerant flows from the receiver tank 47 to the intermediate heat exchanger 48 to cool the brine in the brine circuit 5. As a result, the refrigerant becomes a gas refrigerant and returns from the three-way valve 43 to the compressor 41.

なお、膨張弁４５、４６の開度の比率を変更することにより、空調用室内熱交換器６１と中間熱交換器４８に流れる冷媒量を制御することができ、冷房能力と冷却能力を調節することができる。   Note that the amount of refrigerant flowing through the air conditioning indoor heat exchanger 61 and the intermediate heat exchanger 48 can be controlled by changing the opening ratio of the expansion valves 45 and 46, and the cooling capacity and the cooling capacity are adjusted. be able to.

第５冷却運転モードは、Ｔ＜Ｔ２となったとき、第４冷却運転モードに移行し、Ｔ＜Ｔ１となったとき、第３冷房運転モードに移行する。一方、冷房要求が解除されたとき、温度Ｔに応じて第１冷却運転モードまたは第２冷却運転モードに移行する。   The fifth cooling operation mode shifts to the fourth cooling operation mode when T <T2, and shifts to the third cooling operation mode when T <T1. On the other hand, when the cooling request is canceled, the first cooling operation mode or the second cooling operation mode is shifted according to the temperature T.

図１４において、第１冷却運転モード、第４冷却運転モードによる蓄熱剤２２の温度変化特性を、運転時における実線で示す。また、第４冷却運転モード、第５冷却運転モードによる蓄熱剤２２の温度変化特性を、運転時における曲線Ｃ３で示す。   In FIG. 14, the temperature change characteristic of the heat storage agent 22 in the first cooling operation mode and the fourth cooling operation mode is indicated by a solid line during operation. Further, the temperature change characteristic of the heat storage agent 22 in the fourth cooling operation mode and the fifth cooling operation mode is indicated by a curve C3 during operation.

［第１暖房運転モード］
車内の空調制御器９０から暖房が要求されたとき、制御部１００は、車内温度検出器１２およびブライン温度検出器５６によって検出された温度Ｔｉｎ、Ｔｐに基づいて暖房負荷を算出し、ヒートポンプシステム３の運転要否を判断する。暖房負荷が所定値よりも小であり、かつ温度Ｔｐが所定値Ｔｐ０以上のときは、ヒートポンプシステム３を運転しない第１暖房運転モードが選択される。[First heating operation mode]
When heating is requested from the air conditioning controller 90 in the vehicle, the control unit 100 calculates the heating load based on the temperatures Tin and Tp detected by the vehicle interior temperature detector 12 and the brine temperature detector 56, and the heat pump system 3. Judge whether or not to drive. When the heating load is smaller than the predetermined value and the temperature Tp is equal to or higher than the predetermined value Tp0, the first heating operation mode in which the heat pump system 3 is not operated is selected.

図９において、第１暖房運転モードによる暖房動作では、制御部１００の制御の下、ブライン回路５において、二方弁５２、５４、５８が開弁し、二方弁５３、５５、５７が閉弁される。その結果、ポンプ５１によって、ブラインが、冷却用伝熱管２３からブライン用室内熱交換器６２、中間熱交換器４８、発熱機器冷却熱交換器１０を通過して、冷却用伝熱管２３に戻るように循環する。   In FIG. 9, in the heating operation in the first heating operation mode, under the control of the control unit 100, the two-way valves 52, 54, 58 are opened and the two-way valves 53, 55, 57 are closed in the brine circuit 5. To be spoken. As a result, the pump 51 causes the brine to pass from the cooling heat transfer tube 23 through the brine indoor heat exchanger 62, the intermediate heat exchanger 48, and the heating device cooling heat exchanger 10, and return to the cooling heat transfer tube 23. It circulates to.

このとき、ポンプ５１および室内ファン６３のみを駆動する。ブラインは、発熱機器冷却熱交換器１０において電動機、インバータ等の熱により加熱され、さらに蓄熱剤２２で加熱される。加熱されたブラインは、二方弁５４からブライン用室内熱交換器６２に送られ、室内ファン６３によって供給された空気を加熱する。   At this time, only the pump 51 and the indoor fan 63 are driven. The brine is heated by heat from the electric motor, inverter, etc. in the heat-generating equipment cooling heat exchanger 10 and further heated by the heat storage agent 22. The heated brine is sent from the two-way valve 54 to the brine indoor heat exchanger 62 and heats the air supplied by the indoor fan 63.

ブラインは、二方弁５７が閉、二方弁５８が開となっているため、ラジエータ８に流れず、外部への放熱がない。従って、発熱機器、バッテリの発熱量を有効に暖房に活用できる。   Since the two-way valve 57 is closed and the two-way valve 58 is opened, the brine does not flow to the radiator 8 and does not radiate heat to the outside. Therefore, the heat generation amount of the heat generating device and the battery can be effectively used for heating.

［第２暖房運転モード］
空調制御器９０から暖房要求が指令され、かつＴ≦Ｔ３の条件下において、暖房負荷が所定値よりも大、またはＴｐ＜Ｔｐ０のとき、ヒートポンプシステム３による第２暖房運転モードが選択される。第２暖房運転モードでは、蓄熱剤２２が比較的低温であるため、蓄熱剤２２を冷媒の加熱に活用できない。[Second heating mode]
When a heating request is commanded from the air conditioning controller 90 and the heating load is larger than a predetermined value or Tp <Tp0 under the condition of T ≦ T3, the second heating operation mode by the heat pump system 3 is selected. In the second heating operation mode, since the heat storage agent 22 has a relatively low temperature, the heat storage agent 22 cannot be used for heating the refrigerant.

さらに図９と同様、第２暖房運転モードによる暖房動作では、図１０において、制御部１００の制御の下、ブライン回路５において、二方弁５２、５４、５８が開弁し、二方弁５３、５５、５７が閉弁する。その結果、ポンプ５１によって、ブラインが、冷却用伝熱管２３からブライン用室内熱交換器６２、中間熱交換器４８、発熱機器冷却熱交換器１０を通過して、冷却用伝熱管２３に戻るように循環する。   Further, as in FIG. 9, in the heating operation in the second heating operation mode, the two-way valves 52, 54, and 58 are opened in the brine circuit 5 under the control of the control unit 100 in FIG. , 55, 57 are closed. As a result, the pump 51 causes the brine to pass from the cooling heat transfer tube 23 through the brine indoor heat exchanger 62, the intermediate heat exchanger 48, and the heating device cooling heat exchanger 10, and return to the cooling heat transfer tube 23. It circulates to.

さらに第２暖房運転モードによる暖房動作では、制御部１００の制御の下、ヒートポンプシステム３において、四方弁４２が破線で示す切替位置に切り替わり、３方弁４３が実線で示す切替位置に切り替わる。また、膨張弁４４、４５が所定開度に開弁され、膨張弁４６が閉弁される。冷媒は、圧縮機４１で加熱された後、四方弁４２、空調用室内熱交換器６１、レシーバタンク４７、空調用室外熱交換器７、四方弁４２を通って圧縮機４１に戻る。このとき、冷媒は、空調用室内熱交換器６１において、室内ファン６３によって供給される空気を加熱し、液冷媒となる。冷媒は、その後、膨張弁４４、４５で減圧され、空調用室外熱交換器７において、室外ファン９によって供給された空気から吸熱して、低圧のガス冷媒となる。さらに、冷媒は四方弁４２を通って圧縮機４１に戻る。   Further, in the heating operation in the second heating operation mode, under the control of the control unit 100, in the heat pump system 3, the four-way valve 42 is switched to the switching position indicated by the broken line, and the three-way valve 43 is switched to the switching position indicated by the solid line. Further, the expansion valves 44 and 45 are opened to a predetermined opening, and the expansion valve 46 is closed. After the refrigerant is heated by the compressor 41, it returns to the compressor 41 through the four-way valve 42, the air conditioning indoor heat exchanger 61, the receiver tank 47, the air conditioning outdoor heat exchanger 7, and the four-way valve 42. At this time, the refrigerant heats the air supplied by the indoor fan 63 in the indoor heat exchanger 61 for air conditioning, and becomes a liquid refrigerant. Thereafter, the refrigerant is decompressed by the expansion valves 44 and 45, and in the outdoor heat exchanger 7 for air conditioning, it absorbs heat from the air supplied by the outdoor fan 9 and becomes a low-pressure gas refrigerant. Further, the refrigerant returns to the compressor 41 through the four-way valve 42.

一方、蓄熱剤２２は、ブライン用熱交換器６２において室内ファン６３によって供給される空気を加熱する。   On the other hand, the heat storage agent 22 heats the air supplied by the indoor fan 63 in the brine heat exchanger 62.

［第３暖房運転モード］
空調制御器９０から暖房要求が指令され、暖房負荷が所定値よりも大、かつＴｐ＜Ｔｐ０のとき、ヒートポンプシステム３による第３暖房運転モードが選択される。第３暖房運転モードでは、発熱体１０およびバッテリ２により加熱されたブラインが比較的高温（例えば略３０℃）であるため、発熱体１０および蓄熱剤２２を冷媒の加熱に循環させて活用できる。ここで、Ｔ１＜Ｔ＜Ｔ２では二方弁５２を開、二方弁５３を閉として蓄熱剤２２をブラインで冷却し、Ｔ＜Ｔ３では二方弁５２を閉、二方弁５３を閉として蓄熱剤２２のブラインによる冷却を停止する。これにより、ブラインの温度と蓄熱剤２２の温度を独立に制御できる。[Third heating operation mode]
When a heating request is commanded from the air conditioning controller 90, the heating load is larger than a predetermined value, and Tp <Tp0, the third heating operation mode by the heat pump system 3 is selected. In the third heating operation mode, since the brine heated by the heating element 10 and the battery 2 has a relatively high temperature (for example, approximately 30 ° C.), the heating element 10 and the heat storage agent 22 can be circulated and used for heating the refrigerant. Here, when T1 <T <T2, the two-way valve 52 is opened and the two-way valve 53 is closed and the heat storage agent 22 is cooled with brine. When T <T3, the two-way valve 52 is closed and the two-way valve 53 is closed. Cooling of the heat storage agent 22 with brine is stopped. Thereby, the temperature of the brine and the temperature of the heat storage agent 22 can be controlled independently.

図１１において、第３暖房運転モードによる暖房動作では、制御部１００の制御の下、ブライン回路５において、二方弁５２、５５、５８が開弁し、二方弁５３、５４、５７が閉弁される。ポンプ５１によって、ブラインが、冷却用伝熱管２３から中間熱交換器４８、発熱機器冷却熱交換器１０を通過して、冷却用伝熱管２３に戻るように循環する。   In FIG. 11, in the heating operation in the third heating operation mode, under the control of the control unit 100, the two-way valves 52, 55, 58 are opened and the two-way valves 53, 54, 57 are closed in the brine circuit 5. To be spoken. The brine is circulated by the pump 51 so that the brine passes from the cooling heat transfer tube 23 through the intermediate heat exchanger 48 and the heat generating device cooling heat exchanger 10 and returns to the cooling heat transfer tube 23.

さらに第３暖房運転モードによる暖房動作では、制御部１００の制御の下、ヒートポンプシステム３において、四方弁４２が実線で示す切替位置に切り替えられ、３方弁４３が実線で示す切替位置に切り替えられ、膨張弁４４、４５，４６が所定開度に開かれる。冷媒は、圧縮機４１で加熱された後、四方弁４２、空調用室内熱交換器６１、膨張弁４４、レシーバタンク４７、膨張弁４６を経て、中間熱交換器４８においてブラインによって加熱され、３方弁４３を通って、圧縮機４１に戻る。また冷媒は、圧縮機４１で加熱された後、四方弁４２、空調用室内熱交換器６１、膨張弁４４、レシーバタンク４７、膨張弁４５を経て、車室外熱交換器７において外気から吸熱して加熱され、四方弁４２を通って、圧縮機４１に戻る。
従って、発熱機器１０及びバッテリ２１の発熱量を冷媒を介して暖房に活用することができる。Further, in the heating operation in the third heating operation mode, under the control of the control unit 100, in the heat pump system 3, the four-way valve 42 is switched to the switching position indicated by the solid line, and the three-way valve 43 is switched to the switching position indicated by the solid line. The expansion valves 44, 45, 46 are opened to a predetermined opening. After the refrigerant is heated by the compressor 41, it passes through the four-way valve 42, the air conditioning indoor heat exchanger 61, the expansion valve 44, the receiver tank 47, and the expansion valve 46, and is heated by the brine in the intermediate heat exchanger 48. It returns to the compressor 41 through the direction valve 43. In addition, the refrigerant is heated by the compressor 41, and then passes through the four-way valve 42, the air conditioning indoor heat exchanger 61, the expansion valve 44, the receiver tank 47, and the expansion valve 45, and then absorbs heat from the outside air in the vehicle interior heat exchanger 7. And then returns to the compressor 41 through the four-way valve 42.
Therefore, the calorific values of the heat generating device 10 and the battery 21 can be utilized for heating via the refrigerant.

［第４暖房運転モード（暖機運転）］
車両１が長時間停止され場合等、蓄熱剤２２の温度が第４の設定温度Ｔ４（＜Ｔ３）以下のときに車両１を始動するには暖機運転を要する。そこで、制御部１００は、温度Ｔ＜Ｔ４であったとき、第４暖房運転モード（暖機運転）を選択する。
Ｔ３は、たとえば蓄熱剤２２の蓄熱温度より２℃〜５℃低い温度、Ｔ４はたとえばマイナス５℃〜プラス５℃に設定される。[Fourth heating operation mode (warm-up operation)]
For example, when the vehicle 1 is stopped for a long time, warm-up operation is required to start the vehicle 1 when the temperature of the heat storage agent 22 is equal to or lower than the fourth set temperature T4 (<T3). Therefore, the control unit 100 selects the fourth heating operation mode (warm-up operation) when the temperature T <T4.
T3 is set, for example, at a temperature 2 to 5 ° C. lower than the heat storage temperature of the heat storage agent 22, and T4 is set to, for example, minus 5 ° C. to plus 5 ° C.

図１２において、第４暖房運転モードによる暖房動作では、制御部１００の制御の下、ヒートポンプシステム３において、四方弁４２、３方弁４３が実線で示す切替位置に切り替えられ、膨張弁４５、４６が所定開度に開弁され、膨張弁４４が閉弁される。冷媒は、圧縮機４１で加熱された後、３方弁４３、中間熱交換器４８、膨張弁４６、レシーバタンク４７、膨張弁４４、空調用室内熱交換器６１、四方弁４２を通って、圧縮機４１に戻る。   In FIG. 12, in the heating operation in the fourth heating operation mode, under the control of the control unit 100, the four-way valve 42 and the three-way valve 43 are switched to the switching positions indicated by the solid lines in the heat pump system 3, and the expansion valves 45 and 46 Is opened to a predetermined opening, and the expansion valve 44 is closed. After the refrigerant is heated by the compressor 41, the refrigerant passes through the three-way valve 43, the intermediate heat exchanger 48, the expansion valve 46, the receiver tank 47, the expansion valve 44, the indoor heat exchanger 61 for air conditioning, and the four-way valve 42. Return to the compressor 41.

さらに、図１２において、第４暖房運転モードによる暖房動作では、制御部１００の制御の下、ブライン回路５においては、二方弁５２、５５、５８が開弁され、二方弁５３、５４、５７が閉弁とされる。ポンプ５１によって、ブラインが、冷却用伝熱管２３から中間熱交換器４８、発熱機器冷却熱交換器１０を通過して、冷却用伝熱管２３に戻るように循環する。   Furthermore, in FIG. 12, in the heating operation in the fourth heating operation mode, under the control of the control unit 100, the two-way valves 52, 55, 58 are opened in the brine circuit 5, and the two-way valves 53, 54, 57 is closed. The brine is circulated by the pump 51 so that the brine passes from the cooling heat transfer tube 23 through the intermediate heat exchanger 48 and the heat generating device cooling heat exchanger 10 and returns to the cooling heat transfer tube 23.

中間熱交換器４８においては、冷媒はブラインを加熱し、液冷媒となって膨張弁４６、レシーバタンク４７、膨張弁４５を経て低圧となり、空調用室外熱交換器７に至る。空調用室外熱交換器７では、冷媒は室外ファン９によって供給された空気から吸熱しガス冷媒となって四方弁４２を通り、圧縮機４１に戻る。
一方、中間熱交換器４８で加熱されたブラインは、発熱機器冷却熱交換器１０において、電動機、インバータ等の熱によってさらに加熱され、蓄熱剤２２を介してバッテリ２１を加熱する。従って、外気の熱量を使用することにより、暖機運転時間を短縮できるとともに、暖機のためのエネルギーを節減することができる。In the intermediate heat exchanger 48, the refrigerant heats the brine, becomes a liquid refrigerant, becomes a low pressure through the expansion valve 46, the receiver tank 47, and the expansion valve 45, and reaches the outdoor heat exchanger 7 for air conditioning. In the outdoor heat exchanger 7 for air conditioning, the refrigerant absorbs heat from the air supplied by the outdoor fan 9, becomes a gas refrigerant, passes through the four-way valve 42, and returns to the compressor 41.
On the other hand, the brine heated by the intermediate heat exchanger 48 is further heated by the heat of the electric motor, the inverter and the like in the heat generating device cooling heat exchanger 10 and heats the battery 21 via the heat storage agent 22. Therefore, by using the amount of heat of the outside air, the warm-up operation time can be shortened and energy for warm-up can be saved.

［制御部の処理の流れ］
制御部１００は、図１３のフローチャートに示す以下の各ステップによって、第１冷却運転モード〜第５冷却運転モード、第１暖房運転モード〜第４暖房運転モードを実行する。[Processing flow of control unit]
The control unit 100 executes the first cooling operation mode to the fifth cooling operation mode and the first heating operation mode to the fourth heating operation mode by the following steps shown in the flowchart of FIG.

ステップＳ１３０１：まず、車両１が始動時か否かを判断する。始動時と判定されると、ステップＳ１３１８に進み、始動時でないときは、ステップＳ１３０２に進む。   Step S1301: First, it is determined whether or not the vehicle 1 is being started. If it is determined that the engine has been started, the process proceeds to step S1318. If not, the process proceeds to step S1302.

ステップＳ１３０２：空調制御器９０から暖房要求があったか否かを判断する。暖房要求があったときはステップＳ１３１３に進み、暖房要求が無かったときは、ステップＳ１３０３に進む。   Step S1302: It is determined whether or not there is a heating request from the air conditioning controller 90. When there is a heating request, the process proceeds to step S1313. When there is no heating request, the process proceeds to step S1303.

ステップＳ１３０３：空調制御器９０から冷房要求があったか否かを判断する。冷房要求があったときはステップＳ１３０８に進み、冷房要求が無かったときは、ステップＳ１３０４に進む。   Step S1303: It is determined whether or not there is a cooling request from the air conditioning controller 90. When there is a cooling request, the process proceeds to step S1308, and when there is no cooling request, the process proceeds to step S1304.

ステップＳ１３０４：蓄熱剤２２の温度ＴがＴ１以上か否か判断する。Ｔ≧Ｔ１のときはステップＳ１３０５に進み、Ｔ＜Ｔ１のときは、ステップＳ１３０２に進む。   Step S1304: It is determined whether or not the temperature T of the heat storage agent 22 is equal to or higher than T1. When T ≧ T1, the process proceeds to step S1305, and when T <T1, the process proceeds to step S1302.

ステップＳ１３０５：蓄熱剤２２の温度ＴがＴ２以上か否か判断する。Ｔ≧Ｔ２のときはステップＳ１３０７に進み、Ｔ＜Ｔ２のときは、ステップＳ１３０６に進む。   Step S1305: It is determined whether or not the temperature T of the heat storage agent 22 is equal to or higher than T2. When T ≧ T2, the process proceeds to step S1307, and when T <T2, the process proceeds to step S1306.

ステップＳ１３０６：第１冷却運転モードを実行し、ステップＳ１３０２に戻る。   Step S1306: The first cooling operation mode is executed, and the process returns to Step S1302.

ステップＳ１３０７：第２冷却運転モードを実行し、ステップＳ１３０２に戻る。   Step S1307: The second cooling operation mode is executed, and the process returns to Step S1302.

ステップＳ１３０８：第３冷却運転モードを実行し、ステップＳ１３０９に進む。   Step S1308: The third cooling operation mode is executed, and the process proceeds to Step S1309.

ステップＳ１３０９：蓄熱剤２２の温度ＴがＴ１以上か否か判断する。Ｔ≧Ｔ１のときはステップＳ１３１０に進み、Ｔ＜Ｔ１のときは、ステップＳ１３０８に戻る。   Step S1309: It is determined whether or not the temperature T of the heat storage agent 22 is equal to or higher than T1. When T ≧ T1, the process proceeds to step S1310. When T <T1, the process returns to step S1308.

ステップＳ１３１０：蓄熱剤２２の温度ＴがＴ２以上か否か判断する。Ｔ≧Ｔ２のときはステップＳ１３１２に進み、Ｔ＜Ｔ２のときは、ステップＳ１３１１に進む。   Step S1310: It is determined whether or not the temperature T of the heat storage agent 22 is equal to or higher than T2. When T ≧ T2, the process proceeds to step S1312, and when T <T2, the process proceeds to step S1311.

ステップＳ１３１１：第４冷却運転モードを実行し、ステップＳ１３０２に戻る。   Step S1311: The fourth cooling operation mode is executed, and the process returns to Step S1302.

ステップＳ１３１２：第５冷却運転モードを実行し、ステップＳ１３０２に戻る。   Step S1312: The fifth cooling operation mode is executed, and the process returns to Step S1302.

ステップＳ１３１３：暖房負荷が小であるという条件、およびブライン温度Ｔｐが所定温度Ｔｐ０以上という条件の両者が満足されているか否かを判断する。両条件が満足されたときは、ステップＳ１３１４に進み、両条件またはいずれかの条件が満足されないときは、ステップＳ１３１５に進む。   Step S1313: It is determined whether or not both the condition that the heating load is small and the condition that the brine temperature Tp is equal to or higher than the predetermined temperature Tp0 are satisfied. When both conditions are satisfied, the process proceeds to step S1314, and when both conditions or one of the conditions is not satisfied, the process proceeds to step S1315.

ステップＳ１３１４：第１暖房運転モードを実行し、ステップＳ１３０２に戻る。   Step S1314: The first heating operation mode is executed, and the process returns to Step S1302.

ステップＳ１３１５：ブラインの温度ＴｐがＴｐ０以上か否か判断する。Ｔｐ≧Ｔｐ０のときはステップＳ１３１６に進み、Ｔｐ＜Ｔｐ０のときは、ステップＳ１３１７に進む。   Step S1315: It is determined whether or not the brine temperature Tp is equal to or higher than Tp0. When Tp ≧ Tp0, the process proceeds to step S1316. When Tp <Tp0, the process proceeds to step S1317.

ステップＳ１３１６：第２暖房運転モードを実行し、ステップＳ１３０２に戻る。   Step S1316: The second heating operation mode is executed, and the process returns to Step S1302.

ステップＳ１３１７：第３暖房運転モードを実行し、ステップＳ１３０２に戻る。   Step S1317: The third heating operation mode is executed, and the process returns to Step S1302.

ステップＳ１３１８：蓄熱剤２２の温度ＴがＴ４以下か否か判断する。Ｔ≦Ｔ４のときはステップＳ１３１９に進み、Ｔ＞Ｔ４のときはステップＳ１３０２に戻る。   Step S1318: It is determined whether or not the temperature T of the heat storage agent 22 is equal to or lower than T4. When T ≦ T4, the process proceeds to step S1319, and when T> T4, the process returns to step S1302.

ステップＳ１３１９：第４暖房運転モードを実行し、ステップＳ１３１８に戻る。   Step S1319: The fourth heating operation mode is executed, and the process returns to Step S1318.

［第２実施形態］
本発明による車載用バッテリの温度制御システムの第２実施形態を、図１７、図１８を参照して説明する。なお、図中、第１実施形態と同一もしくは相当部分には同一符号を付し、説明を省略する。[Second Embodiment]
A second embodiment of the on-vehicle battery temperature control system according to the present invention will be described with reference to FIGS. In the figure, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

第２実施形態は、バッテリ収納容器２内に、車外の空気を取り込んでバッテリ収納容器２内を冷却し、あるいは、バッテリ収納容器２の空気を車内に放出して、暖房に活用する。   In the second embodiment, air outside the vehicle is taken into the battery storage container 2 to cool the inside of the battery storage container 2, or the air in the battery storage container 2 is discharged into the vehicle and used for heating.

図１７、図１８に示すように、バッテリ収納容器２には、車両１の車内に連通した開口部７１、７５が容器長手方向の両端に設けられている。開口部７１は冷却風入口、開口部７５は冷却風出口である。車両１の車外に連通した開口部７２、７６が、容器長手方向の両端に設けられている。開口部７２は冷却風入口、開口部７６は冷却風出口である。   As shown in FIGS. 17 and 18, the battery storage container 2 is provided with openings 71 and 75 communicating with the interior of the vehicle 1 at both ends in the container longitudinal direction. The opening 71 is a cooling air inlet, and the opening 75 is a cooling air outlet. Openings 72 and 76 communicating with the outside of the vehicle 1 are provided at both ends in the container longitudinal direction. The opening 72 is a cooling air inlet, and the opening 76 is a cooling air outlet.

開口部７１、７２、７５、７６には、風路切り替え用ダンパ７３、７４、７７、７８がそれぞれ設けられ、各ダンパ７３、７４、７７、７８は、開口部７１、７２、７５、７６を開閉することができる。バッテリ収納容器２内の出口側には、開口部７５、７６に対向して送風ファン７０が配置され、送風ファン７０は、入口側の開口部７１および／または７２から空気を吸い込み、出口側の開口部７５および／または７６から排出する。
なお、上記ダンパやファンは制御部１００で駆動制御される。The opening portions 71, 72, 75, and 76 are provided with air path switching dampers 73, 74, 77, and 78. The dampers 73, 74, 77, and 78 are provided with the openings 71, 72, 75, and 76, respectively. Can be opened and closed. A blower fan 70 is disposed on the outlet side in the battery storage container 2 so as to face the openings 75 and 76. The blower fan 70 sucks air from the openings 71 and / or 72 on the inlet side, Drain from the openings 75 and / or 76.
The dampers and fans are driven and controlled by the control unit 100.

送風ファン７０による空気の流動を可能にするために、蓄熱剤２２と断熱材２５の間には、冷却用伝熱管２３のフィン２４が容器長手方向に延びるように配置され、隣接するフィン２４の間隙が複数の風路３０とされている。フィン２４の延在方向に対応して、冷却用伝熱管２３は蓄熱剤２２を横方向にジグザグに貫通しており、蓄熱剤２２との充分な伝熱面積が確保されている。   In order to allow air flow by the blower fan 70, the fins 24 of the cooling heat transfer tube 23 are arranged between the heat storage agent 22 and the heat insulating material 25 so as to extend in the longitudinal direction of the container. The gaps are a plurality of air paths 30. Corresponding to the extending direction of the fins 24, the cooling heat transfer tubes 23 penetrate the heat storage agent 22 in the lateral direction in a zigzag manner, and a sufficient heat transfer area with the heat storage agent 22 is ensured.

例えば、第１実施形態で説明した第１冷却運転モード〜第５冷却運転モードに際して、蓄熱剤２２の温度Ｔが温度Ｔ１以上であったとき、ダンパ７４、７８を開、ダンパ７３、７７を閉とし、送風ファン７０を駆動する。このとき、車外の空気が開口部７２から取り込まれ、風路３０を通過しながら蓄熱剤２２、フィン２４を冷却し、後方の開口部７６から排出される。   For example, in the first to fifth cooling operation modes described in the first embodiment, when the temperature T of the heat storage agent 22 is equal to or higher than the temperature T1, the dampers 74 and 78 are opened, and the dampers 73 and 77 are closed. And the blower fan 70 is driven. At this time, air outside the vehicle is taken in from the opening 72, cools the heat storage agent 22 and the fins 24 while passing through the air passage 30, and is discharged from the rear opening 76.

従って、バッテリ２１は送風ファン７０によって空冷されるので、第１冷却運転モードに替えてこの空冷を実行し、あるいは、空冷によって第１冷却運転モード〜第５冷却運転モードを補助することができる。空冷によって第１冷却運転モードを補助する場合、ヒートポンプシステム３、室内ファン６３、室外ファン９の消費電力を節減することができる。   Therefore, since the battery 21 is air-cooled by the blower fan 70, the air cooling can be executed instead of the first cooling operation mode, or the first cooling operation mode to the fifth cooling operation mode can be assisted by air cooling. When the first cooling operation mode is assisted by air cooling, power consumption of the heat pump system 3, the indoor fan 63, and the outdoor fan 9 can be reduced.

例えば、第１実施形態で説明した第１暖房運転モード〜第４暖房運転モードに際して、ダンパ７３、７７を開、ダンパ７４、７８を閉とし、送風ファン７０を駆動する。このとき、車内の空気が開口部７１から取り込まれ、風路３０を通過しながら蓄熱剤２２、フィン２４によって加熱され、開口部７５から放出される。
従って、バッテリ２１からの放熱によって加熱された空気によって車内を暖房でき、車内の暖房負荷を低減できる。For example, in the first heating operation mode to the fourth heating operation mode described in the first embodiment, the dampers 73 and 77 are opened, the dampers 74 and 78 are closed, and the blower fan 70 is driven. At this time, the air inside the vehicle is taken in from the opening 71, heated by the heat storage agent 22 and the fins 24 while passing through the air passage 30, and discharged from the opening 75.
Therefore, the inside of the vehicle can be heated by the air heated by the heat radiation from the battery 21, and the heating load in the vehicle can be reduced.

以上の説明は一例であり、本発明の趣旨に逸脱しない種々の構造の車載バッテリの温度制御システムに本発明を適用することができる。   The above description is an example, and the present invention can be applied to a temperature control system for an in-vehicle battery having various structures without departing from the gist of the present invention.

Claims (9)

車載用のバッテリを収納するバッテリ収納容器と、
前記バッテリ収納容器内において、前記バッテリと熱交換可能な蓄熱剤と、
前記蓄熱剤と第１冷媒との間で熱交換して前記蓄熱剤の温度を調節する蓄熱剤温度調節装置と、
前記蓄熱剤の温度を検出する蓄熱剤温度検出器と、
第２冷媒を循環させて車室内への調和空気を生成するヒートポンプ空調装置と、
前記蓄熱剤温度調節装置の前記第１冷媒と前記ヒートポンプ空調装置の前記第２冷媒との間で熱交換を行う中間熱交換装置と、
前記蓄熱剤温度検出器によって検出された蓄熱剤温度が所定値になったときに、前記蓄熱剤温度調節装置および前記ヒートポンプ空調装置により前記第１冷媒の温度を調整して前記蓄熱剤の温度を調整する制御装置とを備え、
前記バッテリ収納容器には、
車室内に連通する車室内入口開口および車室外と連通する車室外入口開口を有し、前記バッテリ収納容器内に冷却風を流通させるための入口開口と、
車室内に連通する車室内出口開口および車室外と連通する車室外出口開口を有し、前記バッテリ収納容器内に冷却風を流通させるための出口開口と、
前記入口開口から導入した冷却風を流通させて前記出口開口から吐き出す風路とが設けられ、
前記車室内入口開口と前記車室内出口開口の開閉を制御する車室内用ダンパ装置と、
前記車室外入口開口と前記車室外出口開口の開閉を制御する車室外用ダンパ装置とをさらに備え、
前記制御装置は、
前記蓄熱剤温度が第１の基準値以上となったとき、前記車室外入口開口と前記車室外出口開口を開放するように前記車室外用ダンパ装置を駆動制御し、前記車室内入口開口と前記車室内出口開口が閉じるように前記車室内用ダンパ装置を駆動制御する車載用バッテリの温度制御システム。 A battery storage container for storing an in-vehicle battery;
In the battery storage container, a heat storage agent capable of exchanging heat with the battery,
A heat storage agent temperature adjusting device for adjusting the temperature of the heat storage agent by exchanging heat between the heat storage agent and the first refrigerant;
A heat storage agent temperature detector for detecting the temperature of the heat storage agent;
A heat pump air conditioner that circulates the second refrigerant to generate conditioned air into the passenger compartment;
An intermediate heat exchange device for exchanging heat between the first refrigerant of the heat storage agent temperature control device and the second refrigerant of the heat pump air conditioner;
When the heat storage agent has been heat storage agent temperature detected by the temperature detector reaches a predetermined value, the temperature of the heat storage agent to adjust the temperature of the first refrigerant by the heat storage agent temperature control unit and the heat pump air conditioning system A control device to adjust ,
In the battery storage container,
A vehicle interior entrance opening that communicates with the vehicle interior and an exterior entrance opening that communicates with the outside of the vehicle interior; an entrance opening for circulating cooling air into the battery storage container;
A vehicle interior outlet opening communicating with the vehicle interior and a vehicle exterior outlet opening communicating with the exterior of the vehicle interior; an outlet opening for circulating cooling air into the battery storage container;
An air path that circulates the cooling air introduced from the inlet opening and discharges it from the outlet opening is provided.
A vehicle interior damper device that controls opening and closing of the vehicle interior entrance opening and the vehicle interior exit opening;
A vehicle exterior damper device that controls opening and closing of the vehicle exterior entrance opening and the vehicle exterior exit opening;
The controller is
When the heat storage agent temperature is equal to or higher than a first reference value, the vehicle exterior damper device is driven and controlled to open the vehicle exterior entrance opening and the vehicle exterior exit opening, and the vehicle interior entrance opening and the A vehicle- mounted battery temperature control system for drivingly controlling the vehicle interior damper device so that the vehicle interior outlet opening is closed . 請求項１記載の車載用バッテリの温度制御システムにおいて、
前記制御装置は、前記蓄熱剤温度が第１の基準値以上となったとき、前記蓄熱剤を冷却する車載用バッテリの温度制御システム。 In the vehicle battery temperature control system according to claim 1,
The said control apparatus is a temperature control system of the vehicle-mounted battery which cools the said thermal storage agent when the said thermal storage agent temperature becomes more than a 1st reference value. 請求項１または２記載の車載用バッテリの温度制御システムにおいて、
前記制御装置は、前記蓄熱剤温度が第２の基準値（第１の基準値）以下となったとき、前記蓄熱剤を加熱する車載用バッテリの温度制御システム。 In the vehicle battery temperature control system according to claim 1 or 2,
The said control apparatus is a temperature control system of the vehicle-mounted battery which heats the said thermal storage agent when the said thermal storage agent temperature becomes below a 2nd reference value (1st reference value). 請求項１乃至３のいずれか１項記載の車載用バッテリの温度制御システムにおいて、
前記制御装置は、
前記蓄熱剤温度が第２の基準値（第１の基準値）以下となったとき、前記車室内入口開口と前記車室内出口開口を開放するように前記車室内用ダンパ装置を駆動制御し、前記車室外入口開口と前記車室外出口開口が閉じるように前記車室外用ダンパ装置を駆動制御する車載用バッテリの温度制御システム。 In the temperature control system of the vehicle-mounted battery according to any one of claims 1 to 3 ,
The control device includes:
When the heat storage agent temperature becomes equal to or lower than a second reference value (first reference value), the vehicle interior damper device is driven and controlled to open the vehicle interior entrance opening and the vehicle interior exit opening, A vehicle-mounted battery temperature control system that drives and controls the vehicle exterior damper device so that the vehicle exterior exterior opening and the vehicle exterior exit opening are closed. 請求項１乃至４のいずれか１項記載の車載用バッテリの温度制御システムにおいて、
前記バッテリ収納容器内に冷却風を流通させるファンをさらに有する車載用バッテリの温度制御システム。 In the vehicle battery temperature control system according to any one of claims 1 to 4 ,
A vehicle-mounted battery temperature control system further comprising a fan for circulating cooling air in the battery storage container. 請求項１乃至５のいずれか１項記載の車載用バッテリの温度制御システムにおいて、
前記蓄熱剤温度調節装置は、
内部に前記第１冷媒が充填され、前記第１冷媒と前記蓄熱剤との間で熱交換する伝熱管を有する車載用バッテリの温度制御システム。 In the vehicle battery temperature control system according to any one of claims 1 to 5 ,
The heat storage agent temperature control device is:
Wherein the first refrigerant is filled in, the temperature control system of the in-vehicle battery to have a heat transfer tube for heat exchange between the first refrigerant and the heat storage agent. 請求項６記載の車載用バッテリの温度制御システムにおいて、
前記伝熱管は前記風路を横切るようにジグザグ状に配設されている車載用バッテリの温度制御システム。 In the vehicle battery temperature control system according to claim 6 ,
The on-vehicle battery temperature control system in which the heat transfer tubes are arranged in a zigzag shape so as to cross the air path. 請求項１乃至７のいずれか１項記載の車載用バッテリの温度制御システムにおいて、
前記バッテリ収納容器には前記蓄熱剤を断熱する断熱材が設けられている車載用バッテリの温度制御システム。 In the temperature control system of the vehicle-mounted battery according to any one of claims 1 to 7 ,
A temperature control system for an in-vehicle battery, wherein the battery storage container is provided with a heat insulating material for insulating the heat storage agent. 請求項６または７記載の車載用バッテリの温度制御システムにおいて、
前記蓄熱剤温度調節装置は、
前記伝熱管に接続され、前記第１冷媒を流動させるブライン回路とを有し、
前記ヒートポンプ空調装置は、
前記第２冷媒を加圧する圧縮機と、
前記圧縮機の吐出側と吸込側に接続された第１切替弁と、
前記圧縮機の吐出側と吸込側に接続された第２切替弁と、
前記第２冷媒を膨張させる膨張弁とを備えた圧縮機回路とを有し、
前記温度制御システムは、
前記圧縮機回路に接続された空調用室外熱交換器および空調用室内熱交換器と、
前記ブライン回路と前記圧縮機回路とを相互に熱交換する中間熱交換手段とをさらに備え、
前記第１切替弁は、前記圧縮機の吐出側を、前記空調用室外熱交換器または前記空調用室内熱交換器に接続し、
前記第２切替弁は、前記中間熱交換手段を前記圧縮機の吸込側また吐出側に接続する車載用バッテリの温度制御システム。 In the vehicle battery temperature control system according to claim 6 or 7 ,
The heat storage agent temperature control device is:
A brine circuit connected to the heat transfer tube and flowing the first refrigerant ;
The heat pump air conditioner
A compressor for pressurizing the second refrigerant;
A first switching valve connected to a discharge side and a suction side of the compressor;
A second switching valve connected to a discharge side and a suction side of the compressor;
A compressor circuit having an expansion valve for expanding the second refrigerant,
The temperature control system includes:
An air conditioning outdoor heat exchanger and an air conditioning indoor heat exchanger connected to the compressor circuit;
An intermediate heat exchange means for exchanging heat between the brine circuit and the compressor circuit;
The first switching valve connects the discharge side of the compressor to the outdoor heat exchanger for air conditioning or the indoor heat exchanger for air conditioning,
The second switching valve is a vehicle-mounted battery temperature control system for connecting the intermediate heat exchange means to the suction side or the discharge side of the compressor.
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