JP2014026814A

JP2014026814A - Power supply temperature adjusting device

Info

Publication number: JP2014026814A
Application number: JP2012165839A
Authority: JP
Inventors: Yasumitsu Omi; 康光大見; Masayuki Takeuchi; 雅之竹内; Takashi Yamanaka; 隆山中
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2012-07-26
Filing date: 2012-07-26
Publication date: 2014-02-06
Anticipated expiration: 2032-07-26
Also published as: JP5799912B2

Abstract

PROBLEM TO BE SOLVED: To provide a power supply temperature adjusting device which can adjust the temperature of a battery pack and a charger, respectively and appropriately, while preventing contamination of the battery pack with foreign matters by a simple configuration.SOLUTION: Air in a battery case 21 is circulated by first and second connection ducts 22, 24 for leading the blowing air from a battery blower 23 to the battery case 21, and leading the air discharged from the battery case 21 to the air suction side of the battery blower 23. In addition, first and second heat radiation fins 3a, 3b, coming into thermal contact with a charger 3, are disposed in a charging case 31 and the second connection duct 24, and a first air passage 241, in which the second heat radiation fin 3b is disposed, and a second air passage 242, in which the second heat radiation fin 3b is not disposed, are formed in the second connection duct 24. Furthermore, the air passage 241, 242 are switched by the inner doors 243, 244 of a battery.

Description

本発明は、充放電可能な電池パックおよび電池パックを充電する充電器を具備する電源ユニットの温度を調整する電源温度調整装置に関する。 The present invention relates to a power supply temperature adjusting device for adjusting the temperature of a power supply unit including a chargeable / dischargeable battery pack and a charger for charging the battery pack.

従来、車両に搭載された電池パックおよび充電器で構成される電源ユニットの温度を調整する電源温度調整装置として、充電器により電池パックを充電している際に、充電器にて生ずる熱により電池パックを昇温させるものが提案されている（例えば、特許文献１参照）。 Conventionally, as a power supply temperature adjustment device for adjusting the temperature of a power supply unit composed of a battery pack and a charger mounted on a vehicle, when the battery pack is charged by the charger, the battery is generated by the heat generated in the charger. Some have been proposed that raise the temperature of the pack (see, for example, Patent Document 1).

この特許文献１には、電池パックおよび充電器を冷却水が循環する循環回路の途中に配置し、充電器により電池パックを充電している際に、電池パックの暖機要求があると、充電器の熱により昇温した冷却水を電池パックに流通させることで、電池パックの暖機を行う構成が開示されている。 In Patent Document 1, when a battery pack and a charger are placed in the middle of a circulation circuit through which cooling water circulates and the battery pack is charged by the charger, there is a request for warming up the battery pack. The structure which warms up a battery pack by distribute | circulating the cooling water heated up with the heat | fever of the container to a battery pack is disclosed.

特許第３０４４９７５号Japanese Patent No. 3044975

しかしながら、特許文献１の如く、電池パックおよび充電器それぞれを冷却水が循環する循環回路の途中に配置する構成とすると、電池パックの温度調整が要求されるシーンと充電器の温度調整が要求されるシーンとが異なる場合に、電池パックおよび充電器それぞれを適切な温度に調整することができないといった問題がある。 However, as in Patent Document 1, when the battery pack and the charger are arranged in the middle of the circulation circuit through which the cooling water circulates, the scene in which the temperature adjustment of the battery pack is required and the temperature adjustment of the charger are required. When the scene is different, there is a problem that the battery pack and the charger cannot be adjusted to appropriate temperatures.

例えば、充電器により電池パックを充電している際に、電池パックの暖機要求がない場合、循環回路において冷却水が循環せず、充電器の冷却ができなくなることから、過熱により充電器に故障等の不具合が生ずる虞がある。 For example, when the battery pack is being charged by the charger, if there is no request for warming up the battery pack, the cooling water does not circulate in the circulation circuit, and the charger cannot be cooled. There is a risk of malfunction such as failure.

一方、充電器により組電池を充電している際に、電池パックの暖機要求がない場合において、循環回路に冷却水を循環させることも考えられるが、この場合、組電池の温度が適温以下に低下してしまう虞がある。 On the other hand, when charging the assembled battery with the charger, if there is no request for warming up the battery pack, it may be possible to circulate the cooling water in the circulation circuit. In this case, the temperature of the assembled battery is less than the appropriate temperature. May decrease.

さらに、特許文献１の如く、電池パックおよび充電器それぞれを冷却水にて温度調整する冷却水式の構成とすると、充電器内部や電池パック内部に冷却水を循環させるための配管等を設置する必要があり、電源温度調整装置のシステム構成が複雑化するといった問題がある。 Further, as in Patent Document 1, when the temperature of the battery pack and the charger is adjusted with cooling water, a piping for circulating the cooling water is installed inside the charger and the battery pack. Therefore, there is a problem that the system configuration of the power supply temperature adjusting device becomes complicated.

これに対して、車室外空気を温度調整して電池パック内部に導入する空気式の構成を採用してシステム構成の簡素化を図ることも考えられるが、単に空気式の構成を採用すると、車室外空気を介して水分や埃など異物が電池パック内部に混入し、電池パックに障害が生ずる虞がある。 On the other hand, it is conceivable to simplify the system configuration by adopting a pneumatic configuration in which the temperature outside the passenger compartment is adjusted and introduced into the battery pack, but if simply adopting the pneumatic configuration, There is a risk that foreign matter such as moisture and dust may enter the inside of the battery pack through the outdoor air, and the battery pack may be damaged.

本発明は上記点に鑑みて、簡素な構成で、電池パック内部への異物混入を防止しつつ、電池パックおよび充電器それぞれを適切に温度調整可能な電源温度調整装置を提供することを目的とする。 An object of the present invention is to provide a power supply temperature adjustment device capable of appropriately adjusting the temperature of each of a battery pack and a charger with a simple configuration while preventing foreign matter from entering the battery pack. To do.

本発明は、充放電可能な電池パック（２）、および外部電源からの給電により電池パックを充電する充電器（３）を具備する車載電源ユニットの温度を調整する電源温度調整装置を対象としている。 The present invention is directed to a power supply temperature adjustment device that adjusts the temperature of an in-vehicle power supply unit that includes a battery pack (2) that can be charged and discharged and a charger (3) that charges the battery pack by feeding from an external power supply. .

上記目的を達成するため、請求項１に記載の発明では、電池パックを収容する電池ケース（２１）と、電池ケース内へ空気を送風する電池用送風手段（２３）と、電池用送風手段から送風された空気を電池ケースへ導くと共に、電池ケースから排出された空気を電池用送風手段の空気吸入側へ導く空気循環ダクト（２２、２４）と、充電器（３）を収容する充電ケース（３１）と、充電ケース内へ車室外空気を導く外気導入ダクト（３２）と、充電ケース内に設けられ、車室外空気と充電器との間の熱交換を促進する第１熱交換促進手段（３ａ）と、空気循環ダクト内に設けられ、空気循環ダクト内の空気と充電器との間の熱交換を促進する第２熱交換促進手段（３ｂ）と、を備える。そして、空気循環ダクトは、電池用送風手段から送風された空気を第２熱交換促進手段を介して電池ケースへ導く第１空気流路（２４１）、および電池用送風手段から送風された空気を第２熱交換促進手段を迂回して電池ケースへ導く第２空気流路（２４２）が形成され、電池用送風手段から送風された空気の空気流路を第１空気流路、および第２空気流路に切り替える流路切替手段（２４３、２４４）が設けられていることを特徴としている。 In order to achieve the above object, according to the first aspect of the present invention, the battery case (21) for housing the battery pack, the battery air blowing means (23) for blowing air into the battery case, and the battery air blowing means An air circulation duct (22, 24) that guides the blown air to the battery case and guides the air discharged from the battery case to the air suction side of the battery blowing means, and a charging case that houses the charger (3) ( 31), an outside air introduction duct (32) for guiding outside air into the charging case, and first heat exchange promoting means provided in the charging case to promote heat exchange between the outside air and the charger ( 3a) and second heat exchange promoting means (3b) provided in the air circulation duct and promoting heat exchange between the air in the air circulation duct and the charger. The air circulation duct is configured to guide the air blown from the battery blowing means to the battery case through the second heat exchange promoting means, and the air blown from the battery blowing means. A second air flow path (242) that bypasses the second heat exchange promoting means and leads to the battery case is formed, and the air flow path of the air blown from the battery blowing means is the first air flow path and the second air flow. A flow path switching means (243, 244) for switching to a flow path is provided.

このように、電池パックを空気で温度調整すると共に、空気循環ダクトにより電池ケースへの送風空気を循環させる構成とし、充電ケース内および空気循環ダクト内に第１、第２熱交換促進手段を配置する構成とすれば、第１、第２熱交換促進手段を介して、車室外空気および充電器と、電池パックの温度を調整する空気とを間接的に熱交換させることができ、簡易な構成で電池パック内部への異物混入を防止可能となる。 As described above, the temperature of the battery pack is adjusted with air, and the blown air to the battery case is circulated by the air circulation duct, and the first and second heat exchange promoting means are arranged in the charging case and the air circulation duct. With this configuration, it is possible to indirectly exchange heat between the outside air and the charger and the air for adjusting the temperature of the battery pack via the first and second heat exchange promoting means, and a simple configuration. This makes it possible to prevent foreign matter from entering the battery pack.

これに加えて、空気循環ダクト内部に、第２熱交換促進手段を介して空気が流通する第１空気流路、および第２熱交換促進手段を迂回して空気が流通する第２空気流路を形成すると共に、各空気流路を切り替え可能な構成とすれば、各空気流路の切り替えによって、電池パックおよび充電器それぞれを個別に温度調整することが可能となる。 In addition to this, a first air flow path through which air flows through the second heat exchange promoting means and a second air flow path through which air flows around the second heat exchange promoting means inside the air circulation duct. If each air flow path is switchable, the battery pack and the charger can be individually adjusted in temperature by switching each air flow path.

従って、本発明によれば、簡素な構成で、電池パック内部への異物混入を防止しつつ、電池パックおよび充電器それぞれを適切に温度調整可能な電源温度調整装置を実現することができる。 Therefore, according to the present invention, it is possible to realize a power supply temperature adjustment device that can appropriately adjust the temperature of each of the battery pack and the charger while preventing foreign matter from entering the inside of the battery pack with a simple configuration.

また、請求項１に記載の発明では、請求項２に記載の電源温度調整装置において、空気循環ダクトおよび充電ケースは、互いに隣接して配置され、第１熱交換促進手段および第２熱交換促進手段それぞれは、充電器に一体に設けられた一対の放熱フィン（３ａ、３ｂ）で構成され、第１熱交換促進手段を構成する第１放熱フィン（３ａ）は、充電ケース内の空気に晒されるように配置され、第２熱交換促進手段を構成する第２放熱フィン（３ｂ）は、空気循環ダクト内の空気に晒されるように配置されていることを特徴としている。 Further, in the first aspect of the present invention, in the power source temperature adjusting device according to the second aspect, the air circulation duct and the charging case are disposed adjacent to each other, and the first heat exchange promoting means and the second heat exchange promoting means are provided. Each of the means is composed of a pair of heat radiation fins (3a, 3b) provided integrally with the charger, and the first heat radiation fin (3a) constituting the first heat exchange promoting means is exposed to the air in the charging case. The second heat dissipating fins (3b) that are arranged in such a way as to constitute the second heat exchange promoting means are arranged so as to be exposed to the air in the air circulation duct.

このように、充電器に一体に設けた一対の放熱フィンを介して、外気および充電器と、電池パックの温度を調整する空気とを間接的に熱交換させる構成とすれば、電源温度調整装置のシステム構成をより簡素な構成で実現することが可能となる。 Thus, if it is set as the structure which indirectly heat-exchanges outside air and a charger, and the air which adjusts the temperature of a battery pack via a pair of radiation fin integrally provided in the charger, a power supply temperature regulator This system configuration can be realized with a simpler configuration.

なお、この欄および特許請求の範囲で記載した各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係の一例を示すものである。 In addition, the code | symbol in the parenthesis of each means described in this column and the claim shows an example of a correspondence relationship with the specific means described in the embodiment described later.

実施形態に係る電源温度調整装置の模式的な斜視図である。It is a typical perspective view of the power supply temperature control apparatus which concerns on embodiment. 実施形態に係る電源温度調整装置の模式的な分解斜視図である。It is a typical disassembled perspective view of the power supply temperature control apparatus which concerns on embodiment. 実施形態に係る電源温度調整装置の模式的な断面図である。It is typical sectional drawing of the power supply temperature control apparatus which concerns on embodiment. 実施形態に係る電源温度調整装置の作動の概略を説明するための説明図である。It is explanatory drawing for demonstrating the outline of the action | operation of the power supply temperature control apparatus which concerns on embodiment. 実施形態に係る電源温度調整装置の充電モード時の作動を説明するための説明図である。It is explanatory drawing for demonstrating the operation | movement at the time of the charge mode of the power supply temperature control apparatus which concerns on embodiment. 第１充電モード時の空気の流れを示す模式的な断面図である。It is typical sectional drawing which shows the flow of the air at the time of 1st charge mode. 電池温度に応じて変更する充電器の発熱量を説明するための説明図である。It is explanatory drawing for demonstrating the emitted-heat amount of the charger changed according to battery temperature. 第２充電モード時の空気の流れを示す模式的な断面図である。It is typical sectional drawing which shows the flow of the air at the time of 2nd charge mode. 実施形態に係る電源温度調整装置の走行モード時の作動を説明するための説明図である。It is explanatory drawing for demonstrating the action | operation at the time of driving | running | working mode of the power supply temperature control apparatus which concerns on embodiment. 第１、第４走行モード時の空気の流れを示す模式的な断面図である。It is typical sectional drawing which shows the flow of the air at the time of the 1st, 4th driving mode. 第２、第３走行モード時の空気の流れを示す模式的な断面図である。It is typical sectional drawing which shows the flow of the air at the time of a 2nd, 3rd driving mode.

本発明の一実施形態に係る電源温度調整装置１について図面を用いて説明する。本実施形態の電源温度調整装置１は、走行駆動源を構成する電動モータ（図示略）に給電する電池パック２を外部電源（商用電源）からの給電によって充電可能な車両（例えば、プラグインハイブリッド自動車や電気自動車等）に適用される。 A power supply temperature adjustment apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings. A power source temperature adjusting apparatus 1 according to the present embodiment is a vehicle (for example, a plug-in hybrid) that can charge a battery pack 2 that supplies power to an electric motor (not shown) constituting a travel drive source by supplying power from an external power source (commercial power source). Applicable to automobiles and electric cars.

まず、電源温度調整装置１の構成について図１、図２、図３を用いて説明する。本実施形態の電源温度調整装置１は、車両において、日射等によって温度変化が生じ難く、比較的低温となり易い車両のフロアパネルの下部に形成されたセンタトンネル１００内部に配置されている。 First, the configuration of the power source temperature adjusting device 1 will be described with reference to FIGS. 1, 2, and 3. The power supply temperature adjusting apparatus 1 according to the present embodiment is disposed inside a center tunnel 100 formed in a lower part of a vehicle floor panel that is unlikely to change in temperature due to solar radiation or the like and that is likely to be relatively low in a vehicle.

電源温度調整装置１は、充放電可能な電池パック２、および外部電源（図示略）からの給電により電池パック２を充電する充電器３を具備する車載電源ユニットの温度を調整する装置である。 The power supply temperature adjusting device 1 is a device that adjusts the temperature of an in-vehicle power supply unit that includes a battery pack 2 that can be charged and discharged, and a charger 3 that charges the battery pack 2 by power supply from an external power supply (not shown).

電池パック２は、走行駆動源を構成する電動モータへ電力を供給するものであり、充放電可能な二次電池（例えば、リチウムイオン電池、ニッケル水素電池）を複数直列又は並列に組み合わせた組電池として構成されている。 The battery pack 2 supplies electric power to an electric motor that constitutes a travel drive source, and is an assembled battery in which a plurality of chargeable / dischargeable secondary batteries (for example, lithium ion batteries and nickel metal hydride batteries) are combined in series or in parallel. It is configured as.

電池パック２は、各電池間に空気が流通する隙間を設けられた状態で、電池ケース２１内に収容されている。この電池ケース２１には、ケース内部に空気を導入する空気導入口２１ａが車両前方側に形成されると共に、ケース内部から空気を導出する空気導出口２１ｂが車両後方側に形成されて、電池パック２の温度を調整するための空気が、ケース内部を流通するように構成されている。 The battery pack 2 is accommodated in the battery case 21 with a gap through which air flows between the batteries. The battery case 21 has an air inlet 21a for introducing air into the case on the front side of the vehicle and an air outlet 21b for leading air from the inside of the case on the rear side of the vehicle. Air for adjusting the temperature of 2 is configured to circulate inside the case.

電池ケース２１の空気導出口２１ｂは、第１接続ダクト２２を介して電池用送風機２３の空気吸入側に接続されている。この電池用送風機２３は、電池ケース２１における車両後方側の部位に隣接して配置されている。 The air outlet 21 b of the battery case 21 is connected to the air suction side of the battery blower 23 via the first connection duct 22. The battery blower 23 is disposed adjacent to a vehicle rear side portion of the battery case 21.

電池用送風機２３は、電池ケース２１の空気導出口２１ｂから排出された空気を吸引して、吸引した空気を、第２接続ダクト２４を介して電池ケース２１内部へ送風する電池用送風手段である。本実施形態の電池用送風機２３は、遠心式送風ファンを電動モータにより回転駆動する電動送風機であって、後述する制御装置５によりその作動が制御される。 The battery blower 23 is a battery blower that sucks air discharged from the air outlet 21 b of the battery case 21 and blows the sucked air into the battery case 21 through the second connection duct 24. . The battery blower 23 of the present embodiment is an electric blower that rotationally drives a centrifugal blower fan by an electric motor, and its operation is controlled by the control device 5 described later.

第１接続ダクト２２は、電池ケース２１の空気導出口２１ｂから排出された空気を電池用送風機２３の空気吸入側へ導くダクトである。また、第２接続ダクト２４は、電池用送風機２３から送風された空気を電池ケース２１の空気導入口２１ａへ導くダクトである。各接続ダクト２２、２４は、電池ケース２１から排出された空気を再び電池ケース２１へ循環させる空気循環ダクトを構成している。なお、本実施形態の第２接続ダクト２４は、車両前後方向に延びる構造となっており、車両後方側から車両前方側へと空気が流れるようになっている。 The first connection duct 22 is a duct that guides the air discharged from the air outlet 21 b of the battery case 21 to the air suction side of the battery blower 23. The second connection duct 24 is a duct that guides air blown from the battery blower 23 to the air inlet 21 a of the battery case 21. Each connection duct 22, 24 constitutes an air circulation duct that circulates the air discharged from the battery case 21 to the battery case 21 again. In addition, the 2nd connection duct 24 of this embodiment becomes a structure extended in a vehicle front-back direction, and air flows from the vehicle rear side to the vehicle front side.

また、各接続ダクト２２、２４のうち、第２接続ダクト２４には、その内部空間（空気流路）の一部に仕切部材２４ａが設けられており、当該仕切部材２４ａによって、内部空間が第１空気流路２４１と第２空気流路２４２に分割されている。 Of the connection ducts 22 and 24, the second connection duct 24 is provided with a partition member 24a in a part of its internal space (air flow path). It is divided into a first air flow path 241 and a second air flow path 242.

各空気流路２４１、２４２のうち、第１空気流路２４１には、後述する充電器３に一体に設けられた第２放熱フィン３ｂが配置されている。つまり、第１空気流路２４１は、電池用送風機２３から送風された空気を、第２放熱フィン３ｂを介して電池ケース２１へ導く空気流路を構成している。一方、第２空気流路２４２は、電池用送風機２３から送風された空気を、第２放熱フィン３ｂを介さずに（第２放熱フィン３ｂを迂回して）電池ケース２１へ導く空気流路を構成している。なお、第２放熱フィン３ｂの詳細については後述する。 Among the air flow paths 241 and 242, the first air flow path 241 is provided with second radiating fins 3b provided integrally with the charger 3 described later. That is, the 1st air flow path 241 comprises the air flow path which guides the air ventilated from the battery air blower 23 to the battery case 21 via the 2nd radiation fin 3b. On the other hand, the second air flow path 242 is an air flow path that guides the air blown from the battery blower 23 to the battery case 21 without passing through the second heat radiation fin 3b (bypassing the second heat radiation fin 3b). It is composed. Details of the second radiating fin 3b will be described later.

また、第２接続ダクト２４には、その内部の空気流路を第１空気流路２４１と第２空気流路２４２とで選択的に切り替える流路切替手段としての電池内部ドア２４３、２４４が設けられている。本実施形態の電池内部ドア２４３、２４４は、各空気流路２４１、２４２の空気流れ上流側および空気流れ下流側の双方に設けられている。各電池内部ドア２４３、２４４は、リンク機構（図示略）を介して単一の電動アクチュエータ（図示略）に連結されて、連動して回転操作される板ドアで構成されており、後述する制御装置５によりその作動が制御される。なお、電池内部ドア２４３、２４４は、板ドアに限らず、スライド式、ロータリ式、フィルム式等のドアを採用してもよい。 Also, the second connection duct 24 is provided with battery internal doors 243 and 244 as flow path switching means for selectively switching the air flow path between the first air flow path 241 and the second air flow path 242. It has been. The battery internal doors 243 and 244 of the present embodiment are provided on both the air flow upstream side and the air flow downstream side of the air flow paths 241 and 242, respectively. Each battery internal door 243, 244 is connected to a single electric actuator (not shown) via a link mechanism (not shown), and is configured by a plate door that is rotated in conjunction with the door, and will be described later. The operation is controlled by the device 5. The battery internal doors 243 and 244 are not limited to plate doors, and may be sliding, rotary, or film doors.

続いて、充電器３について説明する。充電器３は、スイッチング素子（図示略）のオンオフにより、外部電源から給電された交流を直流に変換すると共に、変換した直流を所望の電圧に調整するスイッチング方式の整流・昇圧回路（ＡＣ−ＤＣコンバータ）で構成されている。なお、充電器３を構成するスイッチング素子の作動は、後述する制御装置５により制御される。 Next, the charger 3 will be described. The charger 3 converts an alternating current fed from an external power source into a direct current by turning on and off a switching element (not shown) and adjusts the converted direct current to a desired voltage (AC-DC). Converter). The operation of the switching elements constituting the charger 3 is controlled by a control device 5 described later.

充電器３は、空気循環ダクトを構成する第２接続ダクト２４に隣接配置された充電ケース３１の内部に収容されている。この充電ケース３１には、長手方向（車両前後方向）の両端部に開口部が形成されており、車両前方側の開口部に車室外空気（外気）を充電ケース３１内へ導く外気導入ダクト３２が接続され、車両後方側の開口部に充電ケース３１を通過した空気を車両外部へ導く外気導出ダクト３３が接続されている。 The charger 3 is accommodated in a charging case 31 disposed adjacent to the second connection duct 24 that constitutes an air circulation duct. The charging case 31 has openings at both ends in the longitudinal direction (vehicle longitudinal direction), and an outside air introduction duct 32 that guides outside air (outside air) into the charging case 31 through the opening on the front side of the vehicle. Is connected, and an outside air derivation duct 33 that guides the air that has passed through the charging case 31 to the outside of the vehicle is connected to the opening on the vehicle rear side.

外気導入ダクト３２は、車両前方の上方側から車両中央部の下方側へ延びる構造となっており、車両前方側から車両後方側へと空気が流れるようになっている。また、外気導出ダクト３３は、車両中央部の下方側から車両後方の下方側へ延びる構造となっており、車両前方側から車両後方側へと空気が流れるようになっている。 The outside air introduction duct 32 has a structure that extends from the upper front side of the vehicle to the lower side of the central portion of the vehicle, and air flows from the front side of the vehicle to the rear side of the vehicle. The outside air outlet duct 33 has a structure that extends from the lower side of the vehicle center to the lower side of the rear of the vehicle, and air flows from the front side of the vehicle to the rear side of the vehicle.

外気導入ダクト３２の空気流れ最上流部には、車両外部から外気を吸引して、充電ケース３１内部へ送風する充電器用送風手段としての外気用送風機３４が配置されている。外気用送風機３４は、遠心式送風ファンを電動モータにより回転駆動する電動送風機であって、後述する制御装置５によりその作動が制御される。 At the most upstream part of the air flow in the outside air introduction duct 32, an outside air blower 34 is disposed as a charger blowing means for sucking outside air from the outside of the vehicle and blowing it into the charging case 31. The outside air blower 34 is an electric blower that rotationally drives a centrifugal blower fan by an electric motor, and its operation is controlled by the control device 5 described later.

また、充電ケース３１の内部には、ケース内部への外気の導入を許容する許容状態と許容しない遮断状態とに選択的に切り替える外気導入切替手段としての外気ドア３１１、３１２が設けられている。 Inside the charging case 31, outside air doors 311 and 312 are provided as outside air introduction switching means for selectively switching between an allowable state allowing the introduction of the outside air into the case and a blocking state not allowing the outside air.

本実施形態の外気ドア３１１、３１２は、充電器３の空気流れ上流側および空気流れ下流側の双方に設けられている。各外気ドア３１１、３１２は、リンク機構（図示略）を介して単一の電動アクチュエータ（図示略）に連結されて、連動して回転操作される板ドアで構成されており、後述する制御装置５によりその作動が制御される。なお、外気ドア３１１、３１２は、板ドアに限らず、スライド式、ロータリ式、フィルム式等のドアを採用してもよい。 The outside air doors 311 and 312 of this embodiment are provided on both the air flow upstream side and the air flow downstream side of the charger 3. Each outside air door 311 and 312 is connected to a single electric actuator (not shown) via a link mechanism (not shown), and is constituted by a plate door that is rotated in conjunction with the door. The operation is controlled by 5. The outside air doors 311 and 312 are not limited to plate doors, but may be sliding, rotary, or film doors.

ここで、本実施形態の充電器３には、その上面側に第１放熱フィン３ａが一体に設けられると共に、その下面側に第２放熱フィン３ｂが一体に設けられている。換言すれば、充電器３には、その上面側に第１放熱フィン３ａが直接接触した状態で取り付けられており、その下面側に第２放熱フィン３ｂが直接接触した状態で取り付けられている。 Here, the charger 3 of the present embodiment is integrally provided with the first radiating fins 3a on the upper surface side, and is integrally provided with the second radiating fins 3b on the lower surface side. In other words, the charger 3 is attached with the first heat dissipating fins 3a in direct contact with the upper surface thereof, and is attached with the second heat dissipating fins 3b in direct contact with the lower surface thereof.

第１放熱フィン３ａは、充電ケース３１内の空気に晒されるように充電ケース３１内に設けられ、充電ケース３１内の空気と充電器３との間の熱交換を促進する第１熱交換促進手段を構成する。 The first heat dissipating fin 3a is provided in the charging case 31 so as to be exposed to the air in the charging case 31, and promotes heat exchange between the air in the charging case 31 and the charger 3. Configure the means.

また、第２放熱フィン３ｂは、第２接続ダクト２４内の空気に晒さらされるように第２接続ダクト２４内に設けられ、充電器３と第２接続ダクト２４内の空気との間の熱交換を促進する第２熱交換促進手段を構成する。本実施形態の第２放熱フィン３ｂは、充電ケース３１の下面側を貫通して、第２接続ダクト２４の第１空気流路２４１内に位置づけられている。 The second radiating fin 3 b is provided in the second connection duct 24 so as to be exposed to the air in the second connection duct 24, and heat between the charger 3 and the air in the second connection duct 24. A second heat exchange promoting means for promoting the exchange is configured. The second radiating fin 3 b of the present embodiment is positioned in the first air flow path 241 of the second connection duct 24 through the lower surface side of the charging case 31.

このように、充電ケース３１内および第２接続ダクト２４の第１空気流路２４１内に各放熱フィン３ａ、３ｂを配置することで、充電ケース３１内の空気および充電器３と、第２接続ダクト２４の第１空気流路２４１を流通する空気とを間接的に熱交換させることが可能となる。特に、本実施形態では、充電ケース３１内を流れる空気の向き（車両前方側から後方側）と、第２接続ダクト２４の第１空気流路２４１内を流れる空気の向き（車両後方側から前方側）とが対向する構造（対向流）としている。 In this way, by disposing the radiation fins 3a and 3b in the charging case 31 and in the first air flow path 241 of the second connection duct 24, the air in the charging case 31 and the charger 3 are connected to the second connection duct 24. It becomes possible to indirectly exchange heat with the air flowing through the first air flow path 241 of the duct 24. In particular, in the present embodiment, the direction of air flowing in the charging case 31 (from the vehicle front side to the rear side) and the direction of air flowing in the first air flow path 241 of the second connection duct 24 (from the vehicle rear side to the front). (Side)).

このため、充電ケース３１内を流れる空気と第１空気流路２４１内を流れる空気との温度差を確保して、充電ケース３１内を流れる空気と第１空気流路２４１内を流れる空気との間の熱交換を効率的に行うことが可能となる。 For this reason, a temperature difference between the air flowing in the charging case 31 and the air flowing in the first air flow path 241 is secured, and the air flowing in the charging case 31 and the air flowing in the first air flow path 241 are It is possible to efficiently perform heat exchange between them.

次に、本実施形態の電気制御部について説明する。制御装置５は、ＣＰＵ、ＲＯＭ、ＥＥＰＲＯＭ、ＲＡＭ等を含む周知のマイクロコンピュータとその周辺回路から構成され、ＲＯＭ等の記憶手段に記憶された制御プログラムに基づいて各種演算、処理を行い、出力側に接続された各種制御機器の作動を制御する。 Next, the electric control unit of this embodiment will be described. The control device 5 is composed of a well-known microcomputer including a CPU, ROM, EEPROM, RAM, etc. and its peripheral circuits, and performs various calculations and processing based on a control program stored in a storage means such as a ROM. Controls the operation of various control devices connected to the.

制御装置５の入力側には、電池パック２の温度（電池温度）を検出する電池温度センサ５ａ、車室外空気（外気）の温度（外気温度）を検出する外気温度センサ５ｂ等が接続されている。さらに、制御装置５は、通信線を介して、車両各種制御装置と通信可能に構成されている。 A battery temperature sensor 5a for detecting the temperature (battery temperature) of the battery pack 2 and an outside air temperature sensor 5b for detecting the temperature (outside air temperature) of the outside air (outside air) of the passenger compartment are connected to the input side of the control device 5. Yes. Furthermore, the control device 5 is configured to be able to communicate with various vehicle control devices via a communication line.

一方、制御装置５の出力側には、電池用送風機２３、電池内部ドア２４３、２４４の電動アクチュエータ、充電器３のスイッチング素子、外気用送風機３４、外気ドア３１１、３１２の電動アクチュエータ等が接続されている。 On the other hand, the battery blower 23, the electric actuators of the battery inner doors 243 and 244, the switching element of the charger 3, the air blower 34, the electric actuators of the outdoor air doors 311 and 312 and the like are connected to the output side of the control device 5. ing.

なお、本実施形態では、制御装置５における電池用送風機２３の作動を制御する構成が、電池用送風能力制御手段を構成し、外気用送風機３４の作動を制御する構成が、充電用送風能力制御手段を構成する。また、制御装置５における電池内部ドア２４３、２４４の作動を制御する構成が、流路切替制御手段を構成し、外気ドア３１１、３１２の作動を制御する構成が、外気導入切替制御手段を構成する。さらに、制御装置５における充電器３のスイッチング素子の作動を制御する構成が、充電器３の発熱量を制御する発熱量制御手段を構成する。 In the present embodiment, the configuration for controlling the operation of the battery blower 23 in the control device 5 constitutes a battery blowing capacity control means, and the configuration for controlling the operation of the outside air blower 34 is a charging ventilation capacity control. Configure the means. Moreover, the structure which controls the action | operation of the battery internal doors 243 and 244 in the control apparatus 5 comprises a flow-path switching control means, and the structure which controls the action | operation of the external air doors 311 and 312 comprises an external air introduction switching control means. . Further, the configuration for controlling the operation of the switching element of the charger 3 in the control device 5 constitutes a calorific value control means for controlling the calorific value of the charger 3.

次に、本実施形態の電源温度調整装置１の作動について説明する。本実施形態の電源温度調整装置１は、車両駐停車中において電池パック２を充電している際に電池パック２および充電器３の温度を調整する充電モードと、車両走行時に電池パック２の温度を調整する走行モードに切り替え可能となっている。以下、各モードにおける作動を説明する。 Next, the operation of the power supply temperature adjustment apparatus 1 of the present embodiment will be described. The power supply temperature adjustment device 1 of the present embodiment includes a charging mode for adjusting the temperature of the battery pack 2 and the charger 3 while charging the battery pack 2 while the vehicle is parked and stopped, and the temperature of the battery pack 2 when the vehicle is traveling. It is possible to switch to a running mode that adjusts. Hereinafter, the operation in each mode will be described.

（Ａ）充電モード
充電モードは、車両駐停車中において、充電器３により電池パック２の充電が行われている際に制御装置５によって実行される。なお、車両駐停車中であっても、充電器３により電池パック２の充電が行われていない場合、電池パック２および充電器３の温度調整が不要であることから、電源温度調整装置１は作動しない。 (A) Charging mode The charging mode is executed by the control device 5 when the battery pack 2 is being charged by the charger 3 while the vehicle is parked or stopped. Even when the vehicle is parked or stopped, if the battery pack 2 is not charged by the charger 3, it is not necessary to adjust the temperature of the battery pack 2 and the charger 3. Does not work.

充電モードでは、制御装置５が、電池温度センサ５ａから取得した電池温度に応じて、現在の電池状態が、電池パック２に熱を与えたくない状態、および電池パック２を暖機したい状態であるかを判定する。例えば、制御装置５は、電池パック２の電池温度が１０℃以上である場合に、電池パック２に熱を与えたくない状態と判定し、電池パック２の電池温度が５℃以下である場合に、電池パック２を暖機したい状態（暖機要求あり）と判定する。 In the charging mode, according to the battery temperature acquired from the battery temperature sensor 5a, the current battery state is a state in which the controller 5 does not want to heat the battery pack 2 and a state in which the battery pack 2 is desired to be warmed up. Determine whether. For example, when the battery temperature of the battery pack 2 is 10 ° C. or higher, the control device 5 determines that it is not desired to apply heat to the battery pack 2 and when the battery temperature of the battery pack 2 is 5 ° C. or lower. Then, it is determined that the battery pack 2 is desired to be warmed up (there is a warm-up request).

本実施形態の制御装置５は、電池状態判定の結果に応じて、第１、第２充電モードを実行する。以下、各充電モードについて説明する。 The control device 5 of the present embodiment executes the first and second charging modes according to the battery state determination result. Hereinafter, each charging mode will be described.

（Ａ−１）第１充電モード
第１充電モードは、電池状態が電池パック２に熱を与えたくない状態と判定された場合に実行される。電池状態が電池パック２に熱を与えたくない状態と判定された場合、電池パック２の暖機を行わずに充電器３だけを冷却する必要がある。このため、図４に示すように、制御装置５が、外気に充電器３の熱が放熱されるように、各種制御機器の作動を制御する。 (A-1) First Charging Mode The first charging mode is executed when it is determined that the battery state does not want to give heat to the battery pack 2. When it is determined that the battery state does not want to heat the battery pack 2, it is necessary to cool only the charger 3 without warming up the battery pack 2. For this reason, as shown in FIG. 4, the control apparatus 5 controls the action | operation of various control apparatuses so that the heat | fever of the charger 3 may be thermally radiated by outside air.

具体的には、制御装置５は、図５に示すように、電池用送風機２３の作動を停止（オフ）し、外気用送風機３４の作動を開始（オン）する。また、第２接続ダクト２４における第１空気流路２４１が閉鎖され、第２空気流路２４２が開放されるように、電池内部ドア２４３、２４４を制御する。さらに、充電ケース３１内への外気を許容する許容状態となるように外気ドア３１１、３１２を制御する。 Specifically, as shown in FIG. 5, the control device 5 stops (turns off) the operation of the battery blower 23 and starts (turns on) the operation of the outside air blower 34. Further, the battery internal doors 243 and 244 are controlled such that the first air flow path 241 in the second connection duct 24 is closed and the second air flow path 242 is opened. Further, the outside air doors 311 and 312 are controlled so as to be in an allowable state in which outside air into the charging case 31 is allowed.

これにより、図６に示すように、外気用送風機３４から送風された空気が、太線矢印で示すように、外気導入ダクト３２→充電ケース３１→外気導出ダクト３３→車両外部へと流れる。 As a result, as shown in FIG. 6, the air blown from the outside air blower 34 flows from the outside air introduction duct 32 → the charging case 31 → the outside air outlet duct 33 → the outside of the vehicle, as indicated by a thick arrow.

この際、充電器３の熱が、第１放熱フィン３ａを介して充電ケース３１内を流れる空気に直接放熱されるので、充電器３を冷却することができる。また、第２接続ダクト２４の第１空気流路２４１が閉鎖されているので、充電器３の熱は、第２放熱フィン３ｂを介して電池パック２の温度を調整する空気に放熱されない。 At this time, the heat of the charger 3 is directly radiated to the air flowing through the charging case 31 via the first heat radiation fins 3a, so that the charger 3 can be cooled. Moreover, since the 1st air flow path 241 of the 2nd connection duct 24 is closed, the heat | fever of the charger 3 is not thermally radiated by the air which adjusts the temperature of the battery pack 2 via the 2nd radiation fin 3b.

以上の如く、充電器３により電池パック２の充電が行われている際に、電池パック２の暖機要求がない場合、電池パック２を昇温させることなく、充電器３を冷却することができる。 As described above, when the battery pack 2 is being charged by the charger 3 and the battery pack 2 is not warmed up, the charger 3 can be cooled without increasing the temperature of the battery pack 2. it can.

（Ａ−２）第２充電モード
第２充電モードは、電池状態が電池パック２を暖機したい状態と判定された場合に実行される。電池状態が電池パック２を暖機したい状態と判定された場合、電池パック２の暖機と充電器３の冷却を両立する必要がある。このため、図４に示すように、制御装置５が、間接的に充電器３の熱が電池パック２に放熱されるように、各種制御機器の作動を制御する。 (A-2) Second Charging Mode The second charging mode is executed when it is determined that the battery state is a state in which the battery pack 2 is desired to be warmed up. When it is determined that the battery state is a state in which the battery pack 2 is desired to be warmed up, it is necessary to achieve both warming up of the battery pack 2 and cooling of the charger 3. For this reason, as shown in FIG. 4, the control device 5 controls the operation of various control devices so that the heat of the charger 3 is indirectly radiated to the battery pack 2.

具体的には、制御装置５は、図５に示すように、電池用送風機２３の作動を開始（オン）し、外気用送風機３４の作動を停止（オフ）する。また、第２接続ダクト２４における第１空気流路２４１が開放され、第２空気流路２４２が閉鎖されるように、電池内部ドア２４３、２４４を制御すると共に、充電ケース３１内への外気を許容しない遮断状態となるように外気ドア３１１、３１２を制御する。 Specifically, as shown in FIG. 5, the control device 5 starts (turns on) the operation of the battery blower 23 and stops (off) the operation of the outside air blower 34. Further, the battery internal doors 243 and 244 are controlled so that the first air flow path 241 in the second connection duct 24 is opened and the second air flow path 242 is closed, and the outside air into the charging case 31 is discharged. The outside air doors 311 and 312 are controlled so as to enter an unacceptable shut-off state.

さらに、本実施形態の制御装置５は、電池パック２の電池温度が低下するにつれて、充電器３の充電効率が悪化するようにスイッチング素子の作動を制御することで、充電器３の発熱量を増大させる。つまり、本実施形態では、充電器３におけるスイッチング素子を、充電器３の発熱量を変更する発熱量変更手段として機能させる。 Furthermore, the control device 5 of the present embodiment controls the operation of the switching element so that the charging efficiency of the charger 3 is deteriorated as the battery temperature of the battery pack 2 is lowered, thereby reducing the heat generation amount of the charger 3. Increase. That is, in this embodiment, the switching element in the charger 3 is caused to function as a calorific value changing unit that changes the calorific value of the charger 3.

具体的には、制御装置５にて、意図的に充電器３のスイッチング素子に入力される駆動周波数またはＤｕｔｙ比を増大させ、スイッチング素子を発熱させることで、充電器３の発熱量を増大させればよい。 Specifically, the control device 5 intentionally increases the drive frequency or duty ratio input to the switching element of the charger 3 and heats the switching element, thereby increasing the amount of heat generated by the charger 3. Just do it.

例えば、図７に示すように、電池パック２の電池温度が低中温域となる場合には、電池パック２の暖機要求の優先度合いが低いと判断できるので、充電効率を優先し、充電器３の発熱量を抑える。そして、電池パック２の電池温度が低中温域よりも低い低温域となる場合には、電池温度が低中温域となる場合に比べて、充電効率を低下させて、充電器３の発熱量を増加させる。さらに、電池パック２の電池温度が低温域よりも低い極低温域となる場合には、電池温度が低温域となる場合に比べて、充電効率を低下させて、充電器３の発熱量を増加させる。 For example, as shown in FIG. 7, when the battery temperature of the battery pack 2 is in the low and middle temperature range, it can be determined that the priority level of the warm-up request of the battery pack 2 is low. The amount of heat generated in 3 is suppressed. When the battery temperature of the battery pack 2 is in a low temperature range lower than the low / medium temperature range, the charging efficiency is lowered compared with the case where the battery temperature is in the low / medium temperature range, and the calorific value of the charger 3 is reduced. increase. Furthermore, when the battery temperature of the battery pack 2 is in a very low temperature range lower than the low temperature range, the charging efficiency is lowered and the amount of heat generated by the charger 3 is increased compared to the case where the battery temperature is in the low temperature range. Let

これにより、図８に示すように、電池用送風機２３から送風された空気が、太線矢印で示すように、第２接続ダクト２４の第１空気流路２４１→電池ケース２１→第１接続ダクト２２へと流れ、電池用送風機２３に吸引される。 As a result, as shown in FIG. 8, the air blown from the battery blower 23 is, as indicated by a thick arrow, the first air flow path 241 of the second connection duct 24 → the battery case 21 → the first connection duct 22. And is sucked into the battery blower 23.

この際、第２接続ダクト２４の第１空気流路２４１が開放されており、充電器３の熱が、第２放熱フィン３ｂを介して第１空気流路２４１を流れる空気に間接的に放熱されるので、充電器３を冷却することができる。そして、充電器３の熱によって昇温した空気の熱が、電池ケース内の電池パック２に放熱されるので、電池パック２の暖機を行うことができる。 At this time, the first air flow path 241 of the second connection duct 24 is opened, and the heat of the charger 3 indirectly radiates heat to the air flowing through the first air flow path 241 via the second heat radiation fins 3b. Therefore, the charger 3 can be cooled. And since the heat of the air heated by the heat of the charger 3 is radiated to the battery pack 2 in the battery case, the battery pack 2 can be warmed up.

また、外気ドア３１１、３１２により充電ケース３１への外気の導入が遮断されていることから、第１放熱フィン３ａを介した充電器３と充電ケース内の空気との熱交換が抑制される。このため、充電器３の熱を電池パック２の暖機に効率よく利用することが可能となる。 Further, since the introduction of outside air into the charging case 31 is blocked by the outside air doors 311 and 312, heat exchange between the charger 3 and the air in the charging case via the first heat radiation fin 3 a is suppressed. For this reason, the heat of the charger 3 can be efficiently used for warming up the battery pack 2.

以上の如く、充電器３により電池パック２の充電が行われている際に、電池パック２の暖機要求がある場合、既存の車載機器である充電器３から間接的に受熱した送風空気を電池パック２へ導くことで、充電器３を冷却しつつ、充電器３にて発生する熱を利用して電池パック２の暖機を行うことができる。 As described above, when the battery pack 2 is being charged by the charger 3, if there is a warm-up request for the battery pack 2, the blown air indirectly received from the charger 3 which is an existing in-vehicle device is used. By guiding to the battery pack 2, the battery pack 2 can be warmed up using the heat generated by the charger 3 while cooling the charger 3.

さらに、電池パック２の電池温度が低下するにつれて、充電器３の発熱量を増大させる構成としているので、電池パック２の暖機を効率的に行うことができる。 Furthermore, since it is set as the structure which increases the emitted-heat amount of the charger 3 as the battery temperature of the battery pack 2 falls, the warm-up of the battery pack 2 can be performed efficiently.

（Ｂ）走行モード
次に、走行モードについて説明する。走行モードは、車両走行中に制御装置５によって実行される。 (B) Travel Mode Next, the travel mode will be described. The traveling mode is executed by the control device 5 while the vehicle is traveling.

走行モードでは、制御装置５が、電池パック２の電池温度に応じて、現在の電池状態が、電池パック２に熱を与えたくない状態（電池パック２を冷却したい状態）、および電池パック２を暖機したい状態であるかを判定する。例えば、制御装置５は、電池パック２の電池温度が３０℃以上である場合に、電池パック２を冷却したい状態（冷却要求あり）と判定し、電池パック２の電池温度が５℃以下である場合に、電池パック２を暖機したい状態（暖機要求あり）と判定する。 In the travel mode, the control device 5 determines that the current battery state does not want to give heat to the battery pack 2 (a state in which the battery pack 2 is to be cooled) and the battery pack 2 in accordance with the battery temperature of the battery pack 2. Determine if you want to warm up. For example, when the battery temperature of the battery pack 2 is 30 ° C. or higher, the control device 5 determines that the battery pack 2 is to be cooled (there is a cooling request), and the battery temperature of the battery pack 2 is 5 ° C. or lower. In this case, it is determined that the battery pack 2 is desired to be warmed up (there is a warm-up request).

さらに、走行モードでは、制御装置５が、電池パック２の電池温度、および外気温度センサ５ｂから取得した外気温度を比較し、外気から吸熱可能であるか、または、外気へ放熱可能であるかを判定する。 Further, in the traveling mode, the control device 5 compares the battery temperature of the battery pack 2 and the outside air temperature acquired from the outside air temperature sensor 5b, and determines whether heat can be absorbed from the outside air or heat can be released to the outside air. judge.

本実施形態の制御装置５は、これら温度判定の結果に応じて、第１〜第４走行モードを実行する。以下、各走行モードについて説明する。 The control device 5 of the present embodiment executes the first to fourth travel modes according to the results of the temperature determination. Hereinafter, each traveling mode will be described.

（Ｂ−１）第１走行モード
第１走行モードは、電池状態が電池パック２を冷却したい状態と判定され、かつ、電池温度が外気温度以上となる場合に実行される。電池状態が電池パック２を冷却したい状態と判定され、かつ、電池温度が外気温度以上となる場合、電池パック２の熱を外気へ放熱可能であることから、図４に示すように、制御装置５が、外気により電池パック２が間接的に冷却されるように、各種制御機器の作動を制御する。 (B-1) 1st driving mode A 1st driving mode is performed when it determines with a battery state being the state which wants to cool the battery pack 2, and battery temperature becomes more than external temperature. When the battery state is determined to be a state in which the battery pack 2 is desired to be cooled and the battery temperature is equal to or higher than the outside air temperature, the heat of the battery pack 2 can be dissipated to the outside air. 5 controls the operation of various control devices so that the battery pack 2 is indirectly cooled by the outside air.

具体的には、制御装置５は、図９に示すように、電池用送風機２３および外気用送風機３４それぞれの作動を開始（オン）する。また、第２接続ダクト２４における第１空気流路２４１が開放され、第２空気流路２４２が閉鎖されるように、電池内部ドア２４３、２４４を制御する。さらに、充電ケース３１内への外気を許容する許容状態となるように外気ドア３１１、３１２を制御する。 Specifically, as shown in FIG. 9, the control device 5 starts (turns on) the operations of the battery blower 23 and the outside air blower 34. Further, the battery internal doors 243 and 244 are controlled so that the first air flow path 241 in the second connection duct 24 is opened and the second air flow path 242 is closed. Further, the outside air doors 311 and 312 are controlled so as to be in an allowable state in which outside air into the charging case 31 is allowed.

これにより、図１０に示すように、外気用送風機３４から送風された空気が、太線矢印で示すように、外気導入ダクト３２→充電ケース３１→外気導出ダクト３３→車両外部へと流れる。また、電池用送風機２３から送風された空気が、太線矢印で示すように、第２接続ダクト２４の第１空気流路２４１→電池ケース２１→第１接続ダクト２２へと流れ、電池用送風機２３に吸引される。 As a result, as shown in FIG. 10, the air blown from the outside air blower 34 flows from the outside air introduction duct 32 → the charging case 31 → the outside air outlet duct 33 → the outside of the vehicle, as indicated by a thick arrow. Further, the air blown from the battery blower 23 flows from the first air flow path 241 of the second connection duct 24 to the battery case 21 → the first connection duct 22, as indicated by a thick arrow, and the battery blower 23. Sucked into.

この際、第１空気流路２４１を流通する空気の熱が、充電器３、および各放熱フィン３ａ、３ｂを介して充電ケース３１を流通する外気に間接的に放熱され、電池ケース２１に流入する空気の温度が低下することで、電池パック２の冷却を行うことができる。 At this time, the heat of the air flowing through the first air flow path 241 is indirectly radiated to the outside air flowing through the charging case 31 via the charger 3 and the heat radiation fins 3a and 3b, and flows into the battery case 21. The battery pack 2 can be cooled by reducing the temperature of the air to be discharged.

以上の如く、車両走行中に電池パック２の冷却要求がある場合に、電池温度が外気温度以上となると、電池パック２の熱を間接的に外気に放熱して、電池パック２の冷却を行うことができる。 As described above, when there is a request for cooling the battery pack 2 during traveling of the vehicle, if the battery temperature becomes equal to or higher than the outside air temperature, the heat of the battery pack 2 is indirectly radiated to the outside air to cool the battery pack 2. be able to.

（Ｂ−２）第２走行モード
第２走行モードは、電池状態が電池パック２を冷却したい状態と判定され、かつ、電池温度が外気温度より低い場合に実行される。電池状態が電池パック２を冷却したい状態と判定され、かつ、電池温度が外気温度より低い場合、外気の熱により電池パック２が昇温してしまう可能性があることから、図４に示すように、制御装置５が、電池パック２が外気から断熱されるように、各種制御機器の作動を制御する。 (B-2) Second Travel Mode The second travel mode is executed when the battery state is determined to be a state in which the battery pack 2 is desired to be cooled and the battery temperature is lower than the outside air temperature. If the battery state is determined to be a state in which the battery pack 2 is desired to be cooled and the battery temperature is lower than the outside air temperature, the battery pack 2 may be heated by the heat of the outside air. In addition, the control device 5 controls the operation of various control devices so that the battery pack 2 is thermally insulated from the outside air.

具体的には、制御装置５は、図９に示すように、電池用送風機２３および外気用送風機３４それぞれの作動を停止（オフ）する。また、制御装置５は、第２接続ダクト２４における第１空気流路２４１が遮断され、第２空気流路２４２が開放されるように、電池内部ドア２４３、２４４を制御する。なお、制御装置５は、外気ドア３１１、３１２について特に制御せず、以前の状態に維持する。 Specifically, as shown in FIG. 9, the control device 5 stops (turns off) the operations of the battery blower 23 and the outside air blower 34. Further, the control device 5 controls the battery internal doors 243 and 244 so that the first air flow path 241 in the second connection duct 24 is blocked and the second air flow path 242 is opened. The control device 5 does not particularly control the outside air doors 311 and 312 and maintains the previous state.

これによれば、図１１に示すように、第２接続ダクト２４の第１空気流路２４１が閉鎖されているので、電池パック２は、外気から断熱された状態となる。これにより、外気の熱は、第２放熱フィン３ｂを介して電池パック２の温度を調整する空気に放熱されない。 According to this, as shown in FIG. 11, since the first air flow path 241 of the second connection duct 24 is closed, the battery pack 2 is insulated from the outside air. Thereby, the heat of the outside air is not radiated to the air that adjusts the temperature of the battery pack 2 via the second radiating fins 3b.

以上の如く、車両走行中に電池パック２の冷却要求がある場合に、電池温度が外気温度よりも低いと、電池パック２を外気から断熱して、外気と電池パック２との不必要な熱交換を抑制することができる。 As described above, when there is a cooling request for the battery pack 2 during traveling of the vehicle, if the battery temperature is lower than the outside air temperature, the battery pack 2 is insulated from the outside air, and unnecessary heat between the outside air and the battery pack 2 is obtained. Exchange can be suppressed.

（Ｂ−３）第３走行モード
第３走行モードは、電池状態が電池パック２を暖機したい状態と判定され、かつ、電池温度が外気温度以上となる場合に実行される。電池状態が電池パック２を暖機したい状態と判定され、かつ、電池温度が外気温度以上となる場合、電池パック２の熱が外気に放熱される可能性があることから、図４に示すように、制御装置５が、電池パック２が外気から断熱されるように、各種制御機器の作動を制御する。 (B-3) Third Travel Mode The third travel mode is executed when the battery state is determined to be a state in which the battery pack 2 is desired to be warmed up and the battery temperature is equal to or higher than the outside air temperature. When it is determined that the battery state is a state in which the battery pack 2 is desired to be warmed up and the battery temperature is equal to or higher than the outside air temperature, the heat of the battery pack 2 may be radiated to the outside air. In addition, the control device 5 controls the operation of various control devices so that the battery pack 2 is thermally insulated from the outside air.

これによれば、図１１に示すように、第２接続ダクト２４の第１空気流路２４１が閉鎖されているので、電池パック２は、外気から断熱された状態となる。これにより、電池パック２の熱は、各放熱フィン３ａ、３ｂを介して外気に放熱されない。 According to this, as shown in FIG. 11, since the first air flow path 241 of the second connection duct 24 is closed, the battery pack 2 is insulated from the outside air. Thereby, the heat of the battery pack 2 is not radiated to the outside air through the heat radiation fins 3a and 3b.

以上の如く、車両走行中に電池パック２の暖機要求がある場合に、電池温度が外気温度以上となると、電池パック２を外気から断熱して、外気と電池パック２との不必要な熱交換を抑制することができる。 As described above, when there is a request to warm up the battery pack 2 while the vehicle is traveling, if the battery temperature becomes equal to or higher than the outside air temperature, the battery pack 2 is insulated from the outside air, and unnecessary heat between the outside air and the battery pack 2 is obtained. Exchange can be suppressed.

（Ｂ−４）第４走行モード
第４走行モードは、電池状態が電池パック２を暖機したい状態と判定され、かつ、電池温度が外気温度よりも低い場合に実行される。電池状態が電池パック２を暖機したい状態と判定され、かつ、電池温度が外気温度よりも低い場合、外気の熱を利用して電池パック２を暖機可能であることから、図４に示すように、制御装置５が、外気により電池パック２が間接的に暖機されるように、各種制御機器の作動を制御する。 (B-4) Fourth Travel Mode The fourth travel mode is executed when the battery state is determined to be a state where the battery pack 2 is desired to be warmed up and the battery temperature is lower than the outside air temperature. When it is determined that the battery state is a state in which the battery pack 2 is desired to be warmed up and the battery temperature is lower than the outside air temperature, the battery pack 2 can be warmed up using the heat of the outside air. As described above, the control device 5 controls the operation of various control devices so that the battery pack 2 is indirectly warmed up by the outside air.

これにより、外気用送風機３４から送風された空気、および電池用送風機２３から送風された空気が、図１０の太線矢印で示すように流れる。 As a result, the air blown from the outside air blower 34 and the air blown from the battery blower 23 flow as shown by the thick arrows in FIG.

この際、充電ケース３１を流通する空気の熱が、充電器３、および各放熱フィン３ａ、３ｂを介して第２接続ダクト２４の第１空気流路２４１を流通する空気に間接的に放熱され、電池ケース２１に流入する空気が昇温することで、電池パック２の暖機を行うことができる。 At this time, the heat of the air flowing through the charging case 31 is indirectly radiated to the air flowing through the first air flow path 241 of the second connection duct 24 via the charger 3 and the heat radiation fins 3a and 3b. The battery pack 2 can be warmed up by increasing the temperature of the air flowing into the battery case 21.

以上の如く、車両走行中に電池パック２の暖機要求がある場合に、電池温度が外気温度より低いと、外気の熱を間接的に電池パック２に放熱して、電池パック２の暖機を行うことができる。 As described above, when there is a request to warm up the battery pack 2 while the vehicle is running, if the battery temperature is lower than the outside air temperature, the heat of the outside air is indirectly radiated to the battery pack 2 to warm up the battery pack 2. It can be performed.

以上説明した本実施形態では、電池パック２を空気で温度調整すると共に、各接続ダクト２２、２４により電池ケース２１への送風空気を循環させる構成とし、さらに、充電ケース３１内および空気循環ダクト内（第２接続ダクト２４内）に各放熱フィン３ａ、３ｂを配置する構成としている。これによれば、各放熱フィン３ａ、３ｂを介して、外気および充電器３と、電池パック２の温度を調整する空気とを間接的に熱交換させることができ、簡易な構成で電池パック２内部への異物混入を防止可能となる。 In the present embodiment described above, the temperature of the battery pack 2 is adjusted with air, the blown air to the battery case 21 is circulated by the connection ducts 22 and 24, and the charging case 31 and the air circulation duct are further circulated. It is set as the structure which arrange | positions each radiation fin 3a, 3b (in the 2nd connection duct 24). According to this, it is possible to indirectly exchange heat between the outside air and the charger 3 and the air for adjusting the temperature of the battery pack 2 through the heat radiation fins 3a and 3b, and the battery pack 2 can be configured with a simple configuration. It is possible to prevent foreign matter from entering inside.

これに加えて、第２接続ダクト２４内部に、第２放熱フィン３ｂを介して空気が流通する第１空気流路２４１、および第２放熱フィン３ｂを迂回して空気が流通する第２空気流路２４２を形成すると共に、各空気流路２４１、２４２を切り替え可能な構成を採用している。これにより、各空気流路２４１、２４２の切り替えによって、電池パック２および充電器３それぞれを個別に温度調整することが可能となる。 In addition to this, the first air flow path 241 through which the air flows through the second radiating fins 3b and the second air flow through which the air flows around the second radiating fins 3b inside the second connection duct 24. A configuration is adopted in which the air passages 241 and 242 can be switched while the passage 242 is formed. Thus, the temperature of each of the battery pack 2 and the charger 3 can be individually adjusted by switching the air flow paths 241 and 242.

従って、本実施形態の電源温度調整装置１によれば、簡素な構成で、電池パック２内部への異物混入を防止しつつ、電池パック２および充電器３それぞれを適切に温度調整することができる。 Therefore, according to the power source temperature adjustment device 1 of the present embodiment, the temperature of the battery pack 2 and the charger 3 can be appropriately adjusted with a simple configuration while preventing foreign matter from entering the battery pack 2. .

さらに、本実施形態の如く、充電器３に一体に設けた一対の放熱フィン３ａ、３ｂを介して、外気および充電器３と、電池パック２の温度を調整する空気とを間接的に熱交換させる構成とすれば、電源温度調整装置１のシステム構成をより簡素な構成で実現することが可能となる。 Further, as in the present embodiment, heat exchange between the outside air and the charger 3 and the air for adjusting the temperature of the battery pack 2 is indirectly performed through a pair of heat radiation fins 3 a and 3 b provided integrally with the charger 3. If it is set as the structure to be made, it will become possible to implement | achieve the system structure of the power supply temperature control apparatus 1 with a simpler structure.

（他の実施形態）
以上、本発明の実施形態について説明したが、本発明はこれに限定されるものではなく、各請求項に記載した範囲を逸脱しない限り、当業者が有する知識により適宜変更することができる。例えば、以下のように種々変形可能である。 (Other embodiments)
The embodiment of the present invention has been described above, but the present invention is not limited to this, and can be appropriately changed according to the knowledge possessed by those skilled in the art without departing from the scope described in each claim. For example, various modifications are possible as follows.

（１）上述の実施形態では、電源温度調整装置１の簡素化を図るために、各放熱フィン３ａ、３ｂを充電器３と一体に構成する例について説明したが、これに限定されない。各放熱フィン３ａ、３ｂは、充電器３と熱的に接触してそれぞれの機能を発揮できる形態であれば、充電器３と別体で構成してもよい。 (1) In the above-described embodiment, in order to simplify the power supply temperature adjusting device 1, the example in which the heat radiating fins 3a and 3b are configured integrally with the charger 3 has been described. However, the present invention is not limited to this. Each heat radiation fin 3a, 3b may be configured separately from the charger 3 as long as it can be brought into thermal contact with the charger 3 to exhibit the respective functions.

（２）上述の実施形態の如く、制御装置５にて各充電モードおよび各走行モードの全てを実行する構成とすることが望ましいが、これに限定されず、各充電モードおよび各走行モードの全てではなく一部を実行する構成としてもよい。 (2) As in the above-described embodiment, it is desirable that the control device 5 execute all the charging modes and each traveling mode. However, the present invention is not limited to this, and each charging mode and each traveling mode are all configured. It is good also as a structure which performs one part instead of.

例えば、制御装置５にて、各充電モードおよび各走行モードのうち一方のモードだけを実行する構成としたり、電池パック２の暖機および冷却の一方に特化したモードだけを実行する構成としたりしてもよい。 For example, the control device 5 may be configured to execute only one mode of each charging mode and each traveling mode, or may be configured to execute only a mode specialized for one of warming up and cooling of the battery pack 2. May be.

（３）上述の実施形態では、電池内部ドア２４３、２４４を空気流れ上流側および下流側の双方に設ける例について説明したが、これに限らず、いずれか一方に設ける構成としてもよい。 (3) In the above-described embodiment, the example in which the battery internal doors 243 and 244 are provided on both the upstream side and the downstream side of the air flow has been described.

（４）上述の実施形態では、外気ドア３１１、３１２を空気流れ上流側および下流側の双方に設ける例について説明したが、これに限らず、いずれか一方に設ける構成としてもよい。さらに、上述の実施形態の如く、外気と電池パック２との不必要な熱交換を抑制するために、外気ドア３１１、３１２を設けることが好ましいが、外気ドア３１１、３１２を廃した構成としてもよい。 (4) In the above-described embodiment, the example in which the outside air doors 311 and 312 are provided on both the upstream side and the downstream side of the air flow has been described. Furthermore, although it is preferable to provide the outside air doors 311 and 312 in order to suppress unnecessary heat exchange between the outside air and the battery pack 2 as in the above-described embodiment, the outside air doors 311 and 312 may be omitted. Good.

（５）上述の実施形態の如く、外気用送風機３４によって、充電ケース３１内部へ外気を送風する構成が好ましいが、これに限定されない。例えば、車両走行中においては、走行風（ラム圧）により充電ケース３１内部へ外気を導入可能であり、車両駐停車中においても、充電ケース３１内部と車両外部との温度差による自然対流によって、充電ケース３１内部の空気の入れ替えが可能であることから、外気用送風機３４を廃した構成としてもよい。 (5) Although the configuration in which the outside air is blown into the charging case 31 by the outside air blower 34 as in the above-described embodiment is preferable, it is not limited thereto. For example, outside air can be introduced into the charging case 31 by running wind (ram pressure) while the vehicle is running, and even during parking and stopping of the vehicle, due to natural convection due to a temperature difference between the inside of the charging case 31 and the outside of the vehicle, Since the air inside the charging case 31 can be replaced, the outside air blower 34 may be omitted.

（６）上述の実施形態の如く、電池パック２の暖機を目的とした第２充電モードを実行する際に、電池温度に応じて、充電器３の発熱量を変更することが望ましいが、これに限らず、例えば、充電器３の発熱量を変更しないようにしてもよい。 (6) As in the above-described embodiment, when executing the second charging mode for the purpose of warming up the battery pack 2, it is desirable to change the heat generation amount of the charger 3 according to the battery temperature. For example, the amount of heat generated by the charger 3 may not be changed.

（７）上述の実施形態では、電源温度調整装置１をセンタトンネル１００内部に配置する例について説明したが、これに限らず、車両における他の部位に電源温度調整装置１を配置してもよい。 (7) In the above-described embodiment, the example in which the power supply temperature adjusting device 1 is disposed inside the center tunnel 100 has been described. However, the present invention is not limited to this, and the power supply temperature adjusting device 1 may be disposed in another part of the vehicle. .

（８）上述の実施形態では、仕切部材２４ａにより、第２接続ダクト２４内の空気流路を第１、第２空気流路２４１、２４２に分割する例について説明したが、これに限定されない。例えば、第２接続ダクト２４を２つのダクトで構成し、各ダクトの一方に第１空気流路２４１を形成し、他方に第２空気流路２４２を形成するようにしてもよい。 (8) In the above-described embodiment, the example in which the air flow path in the second connection duct 24 is divided into the first and second air flow paths 241 and 242 by the partition member 24a has been described, but the present invention is not limited to this. For example, the second connection duct 24 may be constituted by two ducts, the first air flow path 241 may be formed in one of the ducts, and the second air flow path 242 may be formed in the other.

（９）上述の実施形態の如く、充電ケース３１内を流れる空気の向きと、第２接続ダクト２４の第１空気流路２４１内を流れる空気の向きとが対向する構造（対向流）とすることが望ましいが、これに限定されない。例えば、充電ケース３１内を流れる空気の向きと、第２接続ダクト２４の第１空気流路２４１内を流れる空気の向きとが平行となる構造（平行流）や、交差するような構造（交差流）としてもよい。 (9) Like the above-mentioned embodiment, it is set as the structure (opposite flow) which the direction of the air which flows through the inside of the charging case 31 and the direction of the air which flows through the inside of the 1st air flow path 241 of the 2nd connection duct 24 oppose. However, the present invention is not limited to this. For example, a structure in which the direction of air flowing in the charging case 31 and the direction of air flowing in the first air flow path 241 of the second connection duct 24 are parallel (parallel flow), or a structure that intersects (intersection) Flow).

（１０）電源温度調整装置１の構成が複雑化しなければ、上述の実施形態において、電源温度調整装置１の構成要素として、電池パック２の温度調整を補助的に行う部材（例えば、ペルチェモジュール、冷凍サイクル等の放熱器や吸熱器）を追加してもよい。 (10) If the configuration of the power supply temperature adjustment device 1 is not complicated, in the above-described embodiment, as a component of the power supply temperature adjustment device 1, a member (for example, a Peltier module, etc.) that auxiliaryly adjusts the temperature of the battery pack 2 You may add radiators and heat absorbers, such as a refrigerating cycle.

１電源温度調整装置
２電池パック
２１電池ケース
２２第１接続ダクト（空気循環ダクト）
２３電池用送風機（電池用送風手段）
２４第２接続ダクト（空気循環ダクト）
２４１第１空気流路
２４２第２空気流路
２４３第１電池内部ドア（流路切替手段）
２４４第２電池内部ドア（流路切替手段）
３充電器
３ａ第１放熱フィン（第１熱交換促進手段）
３ｂ第２放熱フィン（第２熱交換促進手段）
３１充電ケース
３２外気導入ダクト DESCRIPTION OF SYMBOLS 1 Power supply temperature control apparatus 2 Battery pack 21 Battery case 22 1st connection duct (air circulation duct)
23 Battery blower (Battery blower)
24 Second connection duct (air circulation duct)
241 1st air flow path 242 2nd air flow path 243 1st battery internal door (flow path switching means)
244 Second battery internal door (flow path switching means)
3 Charger 3a 1st heat radiation fin (1st heat exchange promotion means)
3b 2nd radiation fin (2nd heat exchange promotion means)
31 Charging case 32 Outside air introduction duct

Claims

A battery pack (2) that can be charged and discharged, and a power supply temperature adjustment device that adjusts the temperature of an in-vehicle power supply unit that includes a charger (3) that charges the battery pack by feeding power from an external power source while the vehicle is parked or stopped. There,
A battery case (21) for housing the battery pack;
Battery blowing means (23) for blowing air into the battery case;
An air circulation duct (22, 24) for guiding the air blown from the battery blowing means to the battery case and guiding the air discharged from the battery case to the air suction side of the battery blowing means;
A charging case (31) for housing the charger (3);
An outside air introduction duct (32) for guiding outside air into the charging case;
A first heat exchange facilitating means (3a) provided in the charging case and facilitating heat exchange between the outside air of the passenger compartment and the charger;
A second heat exchange facilitating means (3b) provided in the air circulation duct and promoting heat exchange between the air in the air circulation duct and the charger;
The air circulation duct is blown from the first air flow path (241) for guiding the air blown from the battery blowing means to the battery case via the second heat exchange promoting means, and from the battery blowing means. A second air flow path (242) for guiding the air to the battery case by bypassing the second heat exchange promoting means is formed, and the air flow path of the air blown from the battery blowing means is the first air A power supply temperature adjusting device, characterized in that a flow path switching means (243, 244) for switching to the flow path and the second air flow path is provided.

The air circulation duct and the charging case are arranged adjacent to each other;
Each of the first heat exchange promoting means and the second heat exchange promoting means is composed of a pair of heat radiation fins (3a, 3b) provided integrally with the charger,
The first heat dissipating fin (3a) constituting the first heat exchange promoting means is disposed so as to be exposed to the air in the charging case,
2. The power source temperature adjustment device according to claim 1, wherein the second heat radiation fin (3 b) constituting the second heat exchange promoting means is disposed so as to be exposed to the air in the air circulation duct. .

When the battery pack is being charged by the charger and the battery pack is warmed up, the flow path switching means switches to the first air flow path, and the battery blowing means is The power supply temperature adjusting device according to claim 1 or 2, wherein air is blown to the battery case via a first air flow path.

When the battery pack is being charged by the charger, the flow path switching unit is configured to switch to the second air flow path when there is no request for warming up of the battery pack. The power supply temperature adjusting device according to any one of claims 1 to 3.

Outside air introduction switching means (311, 312) for switching between an allowable state allowing the introduction of the outside air into the charging case and a non-permitted blocking state,
When there is a request for warming up of the battery pack during traveling of the vehicle and the battery temperature of the battery pack is lower than the temperature of the air outside the vehicle compartment, the flow path switching means switches to the first air flow path, The battery blowing means is configured to blow air to the battery case via the first air flow path, and further, the outside air introduction switching means is configured to switch to the allowable state. 5. The power supply temperature adjusting device according to any one of 1 to 4.

Outside air introduction switching means (311, 312) for switching between an allowable state allowing the introduction of the outside air into the charging case and a non-permitted blocking state,
When there is a cooling request for the battery pack during traveling of the vehicle and the battery temperature of the battery pack is equal to or higher than the temperature of the outside air of the vehicle compartment, the flow path switching means switches to the first air flow path, The battery blowing means is configured to blow air to the battery case via the first air flow path, and further, the outside air introduction switching means is configured to switch to the allowable state. The power supply temperature adjusting device according to any one of 1 to 5.

When there is a request for warming up of the battery pack during traveling of the vehicle, and the battery temperature of the battery pack is equal to or higher than the temperature of the air outside the vehicle compartment, the flow path switching means is switched to the second air flow path. It is comprised by these, The power supply temperature control apparatus as described in any one of Claim 1 thru | or 6 characterized by the above-mentioned.

When there is a cooling request for the battery pack while the vehicle is running, and the battery temperature of the battery pack is lower than the temperature of the air outside the vehicle compartment, the flow path switching means is configured to switch to the second air flow path. The power source temperature adjusting device according to claim 1, wherein the power source temperature adjusting device is provided.