JP2014082069A - Temperature control bag and temperature control system - Google Patents

Temperature control bag and temperature control system Download PDF

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JP2014082069A
JP2014082069A JP2012228426A JP2012228426A JP2014082069A JP 2014082069 A JP2014082069 A JP 2014082069A JP 2012228426 A JP2012228426 A JP 2012228426A JP 2012228426 A JP2012228426 A JP 2012228426A JP 2014082069 A JP2014082069 A JP 2014082069A
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temperature control
bag
power storage
control bag
temperature
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Hiromichi Higuchi
裕倫 樋口
Takuji Matsushita
卓史 松下
Kazuhiko Sato
一彦 佐藤
Takashi Morimura
孝史 森村
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Fukoku Co Ltd
Fukoku KK
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Fukoku Co Ltd
Fukoku KK
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    • 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

Abstract

PROBLEM TO BE SOLVED: To provide a temperature control bag and a temperature control system capable of improving a degree of freedom in arrangement, having a good temperature control efficiency, and miniaturizing a battery unit including a power storage device.SOLUTION: A temperature control bag 3 for a power storage device 21 is formed in a bag shape having an inner space by a resin material or a rubber material having flexibility. A flow channel 35 for cooling fluid or heating fluid is configured by the inner space.

Description

本発明は、温調バッグおよび温調システムに係り、より具体的には、蓄電装置の温度調節を行う温調バッグおよび温調システムに関する。   The present invention relates to a temperature adjustment bag and a temperature adjustment system, and more specifically, to a temperature adjustment bag and a temperature adjustment system for adjusting the temperature of a power storage device.

従来、ニッケル水素バッテリ、リチウムイオンバッテリや燃料電池等で構成されるバッテリモジュール等の蓄電装置の温度を調節する温調装置が知られている（例えば、特許文献１、２参照）。
特許文献１に記載の温調装置は、所謂空冷式であり、複数のバッテリモジュール（セル）を有するバッテリユニットにおいて、冷媒導入口を介して筐体内に導入された冷媒（空気）を、各バッテリモジュールと隣接するバッテリモジュールとの間に設けられた流通路に誘導することで、各バッテリモジュールを冷却するように構成されている。
特許文献２に記載の温調装置は、所謂水冷式であり、バッテリユニットの周囲を囲む複数の配管と、これら複数の配管に接続された収集管とを備え、配管に流れる熱媒体によりバッテリユニットの熱を収集し、収集管により熱を熱媒体とともに送出（放散）するように構成されている。 Conventionally, a temperature control device that adjusts the temperature of a power storage device such as a battery module including a nickel-metal hydride battery, a lithium ion battery, a fuel cell, and the like is known (see, for example, Patent Documents 1 and 2).
The temperature control device described in Patent Document 1 is a so-called air-cooling type, and in a battery unit having a plurality of battery modules (cells), the refrigerant (air) introduced into the housing through the refrigerant introduction port is supplied to each battery. Each battery module is cooled by being guided to a flow path provided between the module and the adjacent battery module.
The temperature control device described in Patent Document 2 is a so-called water-cooling type, and includes a plurality of pipes surrounding the battery unit and collection pipes connected to the plurality of pipes, and the battery unit is heated by a heat medium flowing through the pipes. The heat is collected, and the heat is sent (dissipated) together with the heat medium through the collecting pipe.

特開２００７−１７２９８３号公報JP 2007-172983 A 特開２０１０−１５７５０２号公報JP 2010-157502 A

しかしながら、特許文献１に記載の温調装置では、バッテリモジュール間の流通路に空気を誘導し、流通路から排出された空気を筐体外へ滞留なく排出するための流路設計を行う必要があるため、バッテリモジュールの配置自由度が小さく、バッテリユニットが大型化してしまうという問題がある。また、冷媒に空気を用いる場合、熱容量が小さいため、冷却・加温に時間がかかるという問題がある。
特許文献２に記載の温調装置では、鋼製管等の配管を使用するため、当該配管をバッテリモジュール間の狭い隙間に配置しにくいという問題がある。このため、バッテリモジュール間の隙間に配管を配置する場合、バッテリモジュール間の間隔をある程度広くせざるを得ず、バッテリユニットや温調装置が大型化し、また複雑となってしまうという問題がある。 However, in the temperature control device described in Patent Document 1, it is necessary to design a flow path for guiding air to the flow path between the battery modules and discharging the air discharged from the flow path without staying outside the housing. Therefore, there is a problem that the degree of freedom of arrangement of the battery module is small and the battery unit is enlarged. Further, when air is used as the refrigerant, there is a problem that it takes time for cooling and heating because the heat capacity is small.
In the temperature control apparatus described in Patent Document 2, since pipes such as steel pipes are used, there is a problem that it is difficult to arrange the pipes in a narrow gap between the battery modules. For this reason, when piping is arrange | positioned in the clearance gap between battery modules, the space | interval between battery modules must be widened to some extent, and there exists a problem that a battery unit and a temperature control apparatus will enlarge and become complicated.

本発明の目的は、配置自由度を向上させることができ、温調効率がよく、蓄電装置を含むバッテリユニットを小型化することができる温調バッグおよび温調システムを提供することにある。   An object of the present invention is to provide a temperature control bag and a temperature control system that can improve the degree of freedom of arrangement, have high temperature control efficiency, and can downsize a battery unit including a power storage device.

本発明の温調バッグは、蓄電装置用の温調バッグであって、可撓性を有する樹脂材またはゴム材により内部空間を有する袋状に形成され、前記内部空間により冷却流体または加熱流体の流路が構成されていることを特徴とする。   The temperature control bag of the present invention is a temperature control bag for a power storage device, and is formed into a bag shape having an internal space with a flexible resin material or rubber material, and the internal space is used for cooling fluid or heating fluid. A flow path is configured.

本発明によれば、可撓性を有する樹脂材またはゴム材により温調バッグを構成しているため、温調バッグを容易に変形することができる。このため、様々な場所に温調バッグを配置することができるので、温調バッグの配置自由度を向上させることができる。
また、温調バッグの配置スペースが狭い場合でも、温調バッグを変形させることで、当該温調バッグを配置スペース内に収めることができる。このため、温調バッグの配置スペースを小さくすることができるので、蓄電装置を含むバッテリユニットを小型化することができる。
さらに、温調バッグが容易に変形することができるため、蓄電装置の表面形状に対する温調バッグの密着性を高めることができ、熱伝導性を良くすることができる。従って、蓄電装置の温調効率を向上させることができる。 According to the present invention, since the temperature control bag is made of a flexible resin material or rubber material, the temperature control bag can be easily deformed. For this reason, since a temperature control bag can be arrange | positioned in various places, the arrangement | positioning freedom degree of a temperature control bag can be improved.
Moreover, even when the arrangement space for the temperature control bag is narrow, the temperature adjustment bag can be accommodated in the arrangement space by deforming the temperature adjustment bag. For this reason, since the arrangement space of the temperature control bag can be reduced, the battery unit including the power storage device can be reduced in size.
Furthermore, since the temperature control bag can be easily deformed, the adhesion of the temperature control bag to the surface shape of the power storage device can be improved, and the thermal conductivity can be improved. Therefore, the temperature control efficiency of the power storage device can be improved.

本発明の温調バッグは、一対の樹脂製フィルムまたはゴム製フィルムを重ねて部分的に貼付して構成されることが好ましい。   The temperature control bag of the present invention is preferably configured by overlapping a part of a pair of resin films or rubber films and partially affixing them.

本発明によれば、一対の樹脂製フィルムまたはゴム製フィルムを貼付して温調バッグを構成するため、温調バッグの製造にあたって金型が不要となり、温調バッグの製造コストを低減することができる。   According to the present invention, since the temperature control bag is configured by attaching a pair of resin films or rubber films, a mold is not necessary for manufacturing the temperature control bag, and the manufacturing cost of the temperature control bag can be reduced. it can.

本発明の温調バッグは、前記内部空間を仕切る仕切部を備え、当該仕切部により前記流路が構成されていることが好ましい。   It is preferable that the temperature control bag of the present invention includes a partition portion that partitions the internal space, and the flow path is configured by the partition portion.

本発明によれば、温調バッグの内部空間を仕切る仕切部により流路が構成されるため、仕切部により流路を任意の形状にすることができる。このため、流路の形状を蓄電装置の温度特性や温度分布に応じて自由に設定することができるので、蓄電装置の温度調節をより適切に行うことができる。   According to this invention, since a flow path is comprised by the partition part which partitions off the internal space of a temperature control bag, a flow path can be made into arbitrary shapes by a partition part. For this reason, since the shape of the flow path can be freely set according to the temperature characteristics and temperature distribution of the power storage device, the temperature of the power storage device can be adjusted more appropriately.

本発明の温調システムは、積層配置された蓄電装置用の温調システムであって、前述した温調バッグと、前記温調バッグに前記冷却流体または前記加熱流体を供給する流体供給装置とを備え、各蓄電装置間の隙間に前記温調バッグが配置されていることを特徴とする。   The temperature control system of the present invention is a temperature control system for a power storage device arranged in a stack, and includes the above-described temperature control bag and a fluid supply device that supplies the cooling fluid or the heating fluid to the temperature control bag. And the temperature control bag is disposed in a gap between the power storage devices.

本発明によれば、前述した効果を有する温調システムを得ることができる。また、冷却流体または加熱流体（以下、併せて「温調流体」という。）が充填されていない薄いフィルム状態の温調バッグを蓄電装置間の隙間に配置し、配置後に温調流体を充填、流動させることで、蓄電装置間の隙間を埋めるように膨張させることができるので、各蓄電装置の接触面に対して温調バッグを密着させることができる。そのため、蓄電装置間の隙間がごく狭いものであっても、温調流体の流動を確保できるため、当該隙間を広くする必要がなく、温調バッグと蓄電装置とを含むバッテリユニットを小型化することができる。   According to the present invention, a temperature control system having the above-described effects can be obtained. In addition, a thin film temperature control bag that is not filled with a cooling fluid or a heating fluid (hereinafter also referred to as “temperature control fluid”) is disposed in the gap between the power storage devices, and is filled with the temperature control fluid after the arrangement. Since it can be inflated to fill the gap between the power storage devices by flowing, the temperature control bag can be brought into close contact with the contact surface of each power storage device. Therefore, even if the gap between the power storage devices is very narrow, the flow of the temperature control fluid can be secured, so there is no need to widen the gap, and the battery unit including the temperature control bag and the power storage device is downsized. be able to.

本発明の第１実施形態に係る温調システムの斜視図。The perspective view of the temperature control system which concerns on 1st Embodiment of this invention. 図１の温調システムの温調バッグの平面図。The top view of the temperature control bag of the temperature control system of FIG. 本発明の第２実施形態に係る温調バッグの平面図。The top view of the temperature control bag which concerns on 2nd Embodiment of this invention. 図３の温調バッグの斜視図。The perspective view of the temperature control bag of FIG.

以下、本発明の各実施形態を図面に基づいて説明する。
なお、第２実施形態において、次の第１実施形態で説明する構成部材と同じ構成部材および同様な機能を有する構成部材には、第１実施形態の構成部材と同じ符号を付し、それらの説明を省略または簡略化する。 Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In addition, in 2nd Embodiment, the same code | symbol as the structural member of 1st Embodiment is attached | subjected to the structural member same as the structural member demonstrated in the following 1st Embodiment, and the same function, those components. The description is omitted or simplified.

［第１実施形態］
図１において、温調システム１は、バッテリユニット２内に設けられた温調バッグ３と、温調バッグ３にＬＬＣ（Long Life Coolant）等の液体またはガス等の気体からなり、バッテリユニット２の冷却または加温に用いられる温調流体を加圧して供給する流体供給装置としてのポンプ４と、ポンプ４から温調バッグ３への温調流体の供給路に設けられ、温調流体の冷却や加熱を行う温調ユニット５とを備え、温調流体を介してバッテリユニット２の温度調節を行うように構成されている。 [First Embodiment]
In FIG. 1, a temperature control system 1 includes a temperature control bag 3 provided in a battery unit 2 and a liquid such as LLC (Long Life Coolant) or a gas such as a gas in the temperature control bag 3. A pump 4 serving as a fluid supply device that pressurizes and supplies a temperature control fluid used for cooling or heating, and a temperature control fluid supply path from the pump 4 to the temperature control bag 3 are provided for cooling the temperature control fluid. And a temperature adjustment unit 5 that performs heating, and is configured to adjust the temperature of the battery unit 2 via a temperature adjustment fluid.

バッテリユニット２は、積層配置された複数の蓄電装置２１と、各蓄電装置２１と当接する複数の温調バッグ３と、蓄電装置２１の下側部分を保持する板状の下側保持部材２２と、蓄電装置２１の上側部分を保持する棒状の上側保持部材２３と、ポンプ４により加圧され、供給された温調流体を分岐させて各温調バッグ３に供給する供給管２４と、各温調バッグ３から排出した温調流体を収集してポンプ４の吸込側に送る収集管２５とを備え、その全体がバッテリケース２６に収容されている。   The battery unit 2 includes a plurality of power storage devices 21 that are stacked, a plurality of temperature control bags 3 that are in contact with the power storage devices 21, and a plate-like lower holding member 22 that holds a lower portion of the power storage device 21. , A rod-shaped upper holding member 23 that holds the upper portion of the power storage device 21, a supply pipe 24 that is pressurized by the pump 4 and branches the supplied temperature adjustment fluid to be supplied to each temperature adjustment bag 3, and each temperature A collecting pipe 25 that collects the temperature-controlled fluid discharged from the conditioning bag 3 and sends it to the suction side of the pump 4 is housed in a battery case 26.

蓄電装置２１は、ニッケル水素バッテリやリチウムイオンバッテリ等のバッテリモジュール、キャパシタモジュール等が例示され、本実施形態では、薄型矩形状のニッケル水素バッテリが用いられている。この蓄電装置２１は、隙間（例えば、２〜３ｍｍ程度）を介して積層され、当該隙間に温調バッグ３が配置されている。   The power storage device 21 is exemplified by a battery module such as a nickel metal hydride battery or a lithium ion battery, a capacitor module, and the like. In the present embodiment, a thin rectangular nickel metal hydride battery is used. The power storage device 21 is stacked via a gap (for example, about 2 to 3 mm), and the temperature adjustment bag 3 is disposed in the gap.

下側保持部材２２、上側保持部材２３、供給管２４、および収集管２５は、それぞれ蓄電装置２１の積層方向に延設されている。このうち、下側保持部材２２は、蓄電装置２１の側方に配置され、上側保持部材２３、供給管２４、および収集管２５は、それぞれ蓄電装置２１の上方に配置されている。   The lower holding member 22, the upper holding member 23, the supply pipe 24, and the collection pipe 25 are each extended in the stacking direction of the power storage device 21. Among these, the lower holding member 22 is disposed on the side of the power storage device 21, and the upper holding member 23, the supply pipe 24, and the collection tube 25 are respectively disposed above the power storage device 21.

温調バッグ３は、可撓性を有する樹脂材またはゴム材により内部空間を有する袋状に形成されている。具体的に、本実施形態の温調バッグ３は、一対の樹脂製フィルムを重ねて、熱溶着により部分的に貼付することで構成される。ここで、温調バッグ３として使用可能な樹脂製フィルムは、特に限定するものではないが、後述する流路３５を熱溶着によって形成する場合には、ＬＤＰＥ、ＬＬＤＰＥ、ＥＶＡ、ＰＶＣなどが好ましい。また、蓄電装置２１との耐摩擦性や耐熱性が必要な場合には、前記フィルムの外層側に、ＰＥＴ、ナイロンなどを重ねたラミネートフィルムを用いることが好ましい。   The temperature control bag 3 is formed in a bag shape having an internal space with a flexible resin material or rubber material. Specifically, the temperature control bag 3 of the present embodiment is configured by stacking a pair of resin films and partially sticking them by heat welding. Here, the resin film that can be used as the temperature control bag 3 is not particularly limited, but LDPE, LLDPE, EVA, PVC, or the like is preferable when the flow path 35 described later is formed by thermal welding. In addition, when friction resistance and heat resistance with the power storage device 21 are required, it is preferable to use a laminate film in which PET, nylon, or the like is stacked on the outer layer side of the film.

なお、樹脂製フィルムの代わりに、ゴム製フィルムを使用することもできる。この場合には、接着剤にて部分的に貼付して流路３５を形成するか、ゴム製フィルムの流路３５側に樹脂製フィルムをラミネートし、樹脂製フィルムを熱溶着させて、流路３５を形成することが好ましい。
また、樹脂製フィルムまたはゴム製フィルムにおいては、フィルム成形の際に、熱伝導性フィラーを混合することによりフィルム自体の熱伝導性を高めることができる。また、熱伝導性を改善するために、樹脂製フィルムまたはゴム製フィルムの外層側にアルミ層をラミネートすることもできる。 A rubber film can be used instead of the resin film. In this case, the flow path 35 is formed by partially sticking with an adhesive, or a resin film is laminated on the flow path 35 side of the rubber film, and the resin film is thermally welded, 35 is preferably formed.
In the case of a resin film or rubber film, the thermal conductivity of the film itself can be increased by mixing a thermally conductive filler during film formation. In order to improve the thermal conductivity, an aluminum layer can be laminated on the outer layer side of the resin film or rubber film.

温調バッグ３は、図２に示すように、当該温調バッグ３の外周部に設けられた枠状の外周溶着部３１と、外周溶着部３１により囲まれた内部空間を仕切る仕切部としての仕切溶着部３２と、当該温調バッグ３内に温調流体が流入する流入口３３と、当該温調バッグ３から温調流体が排出される排出口３４とを備えている。なお、流入口３３および排出口３４は、特に限定されるものではないが、低温特性のよいＬＤＰＥ、ＬＬＤＰＥ、ＥＶＡ、ＰＶＣなどが好ましく、温調バッグ３が樹脂製フィルムで構成される場合には、同一素材であることがより好ましい。   As shown in FIG. 2, the temperature control bag 3 is a frame-shaped outer periphery welded portion 31 provided on the outer periphery of the temperature control bag 3 and a partition portion that partitions an internal space surrounded by the outer periphery welded portion 31. The partition welding part 32, the inflow port 33 into which the temperature control fluid flows into the temperature control bag 3, and the discharge port 34 through which the temperature control fluid is discharged from the temperature control bag 3 are provided. The inlet 33 and the outlet 34 are not particularly limited, but LDPE, LLDPE, EVA, PVC, etc. having good low temperature characteristics are preferable, and when the temperature control bag 3 is made of a resin film. More preferably, they are the same material.

外周溶着部３１は、上部３１１の両端が上方に突出した突出部３１２を有している。この突出部３１２には、当該突出部３１２を貫通する上側係止部３１３が設けられ、当該上側係止部３１３に上側保持部材２３が挿通されることで、当該上側保持部材２３に温調バッグ３が係止される。一方、外周溶着部３１の両方の側部３１４には、下側保持部材２２に係止される下側係止部３１５が設けられている。   The outer periphery welding part 31 has the protrusion part 312 which the both ends of the upper part 311 protruded upwards. The protruding portion 312 is provided with an upper locking portion 313 that penetrates the protruding portion 312, and the upper holding member 23 is inserted into the upper locking portion 313, so that the temperature adjustment bag is attached to the upper holding member 23. 3 is locked. On the other hand, on both side portions 314 of the outer periphery welded portion 31, a lower locking portion 315 that is locked to the lower holding member 22 is provided.

仕切溶着部３２は、外周溶着部３１の上部３１１から下方に向けて形成された直線状の第１溶着部３２１と、外周溶着部３１の下部３１６から上方に向けて形成され、第１溶着部３２１と平行かつ互い違いに設けられた直線状の第２溶着部３２２とを備えている。各溶着部３２１、３２２の基端には、外周溶着部３１の内側に位置し、当該外周溶着部３１に接続した内側溶着部３２３、３２４が設けられている。各内側溶着部３２３、３２４は、外周溶着部３１に向かうにしたがって次第に拡幅するとともに、両側縁が曲線状に形成されている。このような仕切溶着部３２により、温調バッグ３の内部空間が仕切られ、温調流体の流路３５が構成される。この流路３５は、複数の折返部３５１を備え、温調バッグ３内を蛇行した形状を有している。また、流路３５の折返部３５１は、各内側溶着部３２３、３２４の両側縁が曲線状に形成されていることにより、曲線路として構成されている。   The partition weld portion 32 is formed from the upper portion 311 of the outer periphery weld portion 31 downward to the linear first weld portion 321 and from the lower portion 316 of the outer periphery weld portion 31 upward to the first weld portion. 321 and the 2nd welding part 322 of the linear form provided in parallel and staggered. Inner weld portions 323 and 324 that are located inside the outer peripheral weld portion 31 and connected to the outer peripheral weld portion 31 are provided at the base ends of the respective weld portions 321 and 322. Each inner welded portion 323, 324 gradually widens toward the outer peripheral welded portion 31, and both side edges are formed in a curved shape. By such a partition welding part 32, the internal space of the temperature control bag 3 is partitioned, and the flow path 35 of temperature control fluid is comprised. The flow path 35 includes a plurality of folded portions 351 and has a shape meandering through the temperature control bag 3. Moreover, the folding | returning part 351 of the flow path 35 is comprised as a curved path by the both-sides edge of each inner side welding part 323,324 being formed in the shape of a curve.

流入口３３および排出口３４は、それぞれ外周溶着部３１の上部３１１に設けられている。流入口３３は、流路３５の一端に接続するとともに、外周溶着部３１の上部３１１から上方に延設され、図示せぬ接続部材にて供給管２４に接続されている。一方、排出口３４は、流路３５の他端に接続するとともに、外周溶着部３１の上部３１１から上方に延設され、図示せぬ接続部材にて収集管２５に接続されている。   The inflow port 33 and the discharge port 34 are provided in the upper part 311 of the outer periphery welding part 31, respectively. The inflow port 33 is connected to one end of the flow path 35, extends upward from the upper portion 311 of the outer peripheral weld portion 31, and is connected to the supply pipe 24 by a connection member (not shown). On the other hand, the discharge port 34 is connected to the other end of the flow path 35, extends upward from the upper portion 311 of the outer periphery welded portion 31, and is connected to the collection tube 25 by a connection member (not shown).

以上の温調システム１において、バッテリユニット２の温度調節を行う際は、温調ユニット５により温調流体を冷却または加熱し、当該温調流体をポンプ４によりバッテリユニット２に供給する。例えば、蓄電装置２１の温度が上昇した場合、温調ユニット５により冷却された温調流体をバッテリユニット２に供給することで、各蓄電装置２１を冷却することができる。一方、蓄電装置２１の温度が低い場合、温調ユニット５により加熱された温調流体をバッテリユニット２に供給することで、各蓄電装置２１の温度を上昇させることができ、蓄電装置２１の低温性能を向上させることができる。すなわち、温調システム１によれば、各蓄電装置２１の温度を所定の範囲内に調節することができる。
例えば、当該温調システム１を電気自動車用バッテリやハイブリット自動車用バッテリに用いる場合は、当該バッテリーの表面温度で、−４０℃から８０℃程度の範囲で機能し、当該バッテリにおいてもっとも効率のよい所定温度範囲に保持するように温調システム１を構成する。 In the temperature control system 1 described above, when the temperature of the battery unit 2 is adjusted, the temperature control fluid is cooled or heated by the temperature control unit 5, and the temperature control fluid is supplied to the battery unit 2 by the pump 4. For example, when the temperature of the power storage device 21 rises, each power storage device 21 can be cooled by supplying the temperature control fluid cooled by the temperature control unit 5 to the battery unit 2. On the other hand, when the temperature of the power storage device 21 is low, the temperature of each power storage device 21 can be raised by supplying the temperature control fluid heated by the temperature control unit 5 to the battery unit 2. Performance can be improved. That is, according to the temperature control system 1, the temperature of each power storage device 21 can be adjusted within a predetermined range.
For example, when the temperature control system 1 is used for a battery for an electric vehicle or a battery for a hybrid vehicle, the surface temperature of the battery functions in a range of about −40 ° C. to 80 ° C., and the most efficient predetermined in the battery The temperature control system 1 is configured to maintain the temperature range.

以上のような本実施形態によれば、次のような効果がある。
すなわち、可撓性を有する樹脂材またはゴム材により温調バッグ３を構成しているため、温調バッグ３を容易に変形することができる。このため、様々な場所に温調バッグ３を配置することができるので、温調バッグ３の配置自由度を向上させることができる。
また、温調バッグ３の配置スペースが狭い場合でも、温調バッグ３を変形させることで、当該温調バッグ３を配置スペース内に収めることができる。このため、温調バッグ３の配置スペースを小さくすることができるので、温調バッグ３と蓄電装置２１とを含むバッテリユニット２を小型化することができる。
さらに、温調バッグ３が容易に変形することができるため、蓄電装置２１の表面形状に対する温調バッグ３の密着性を高めることができ、熱伝導性を良くすることができる。従って、蓄電装置２１の温調効率を向上させることができる。 According to this embodiment as described above, the following effects are obtained.
That is, since the temperature control bag 3 is made of a flexible resin material or rubber material, the temperature control bag 3 can be easily deformed. For this reason, since the temperature control bag 3 can be arrange | positioned in various places, the arrangement | positioning freedom degree of the temperature control bag 3 can be improved.
Even when the arrangement space for the temperature control bag 3 is narrow, the temperature adjustment bag 3 can be accommodated in the arrangement space by deforming the temperature adjustment bag 3. For this reason, since the arrangement space of the temperature control bag 3 can be reduced, the battery unit 2 including the temperature control bag 3 and the power storage device 21 can be reduced in size.
Furthermore, since the temperature control bag 3 can be easily deformed, the adhesion of the temperature control bag 3 to the surface shape of the power storage device 21 can be improved, and the thermal conductivity can be improved. Therefore, the temperature control efficiency of the power storage device 21 can be improved.

また、一対の樹脂製フィルムまたはゴム製フィルムを貼付して温調バッグ３を構成するため、温調バッグ３の製造にあたって金型が不要となり、温調バッグ３の製造コストを低減することができる。そして、樹脂製フィルムを熱溶着により貼付した場合、これらのフィルムが溶融結着されるため、貼付強度を向上させることができる。
さらに、樹脂製フィルムまたはゴム製フィルムで温調バッグ３を構成するため、流路３５の壁面が柔軟に変形することができ、当該変形により蓄電装置２１の発熱時の膨張を吸収することができる。 Further, since the temperature control bag 3 is configured by attaching a pair of resin film or rubber film, a mold is not necessary for manufacturing the temperature control bag 3, and the manufacturing cost of the temperature control bag 3 can be reduced. . And when a resin-made film is stuck by heat welding, since these films are melt-bonded, sticking strength can be improved.
Further, since the temperature control bag 3 is formed of a resin film or a rubber film, the wall surface of the flow path 35 can be flexibly deformed, and the deformation can absorb the expansion of the power storage device 21 during heat generation. .

また、温調バッグ３の内部空間を仕切る仕切溶着部３２により流路３５が構成されるため、仕切溶着部３２により流路３５を任意の形状にすることができる。このため、流路３５の形状を蓄電装置２１の温度特性や温度分布に応じて自由に設定することができるので、蓄電装置２１の温度調節をより適切に行うことができる。   In addition, since the flow path 35 is configured by the partition weld portion 32 that partitions the internal space of the temperature control bag 3, the flow path 35 can be formed into an arbitrary shape by the partition weld portion 32. For this reason, since the shape of the flow path 35 can be freely set according to the temperature characteristic and temperature distribution of the power storage device 21, the temperature of the power storage device 21 can be adjusted more appropriately.

また、温調流体が充填されていない薄いフィルム状態の温調バッグ３を蓄電装置２１間の隙間に配置し、配置後に温調流体を充填、流動させることで、蓄電装置２１間の隙間を埋めるように膨張させることができるので、各蓄電装置２１の接触面に対して温調バッグ３を密着させることができる。そのため、蓄電装置２１間の隙間がごく狭いものであっても、温調流体の流動を確保できるため、当該隙間を広くする必要がなく、バッテリユニット２を小型化することができる。   Further, the temperature adjusting bag 3 in a thin film state that is not filled with the temperature adjusting fluid is arranged in the gap between the power storage devices 21, and the gap between the power storage devices 21 is filled by filling and flowing the temperature adjusting fluid after the arrangement. Therefore, the temperature control bag 3 can be brought into close contact with the contact surface of each power storage device 21. Therefore, even if the gap between the power storage devices 21 is very narrow, the flow of the temperature control fluid can be ensured, so that it is not necessary to widen the gap and the battery unit 2 can be downsized.

［第２実施形態］
次に、本発明の第２実施形態を図３および図４に基づいて説明する。
本実施形態の温調システム１は、図３および図４に示すように、温調バッグ３Ａの形状が、第１実施形態と相違する。 [Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 3 and 4, the temperature control system 1 of the present embodiment is different from the first embodiment in the shape of the temperature control bag 3 </ b> A.

温調バッグ３Ａは、可撓性を有する樹脂材により形成されている。この温調バッグ３Ａでは、仕切溶着部３２の第１溶着部３２１は、外周溶着部３１の一方の側部３１４から他方の側部３１４に向けて形成され、第２溶着部３２２は、外周溶着部３１の他方の側部３１４から一方の側部３１４に向けて形成されている。また、流入口３３は、外周溶着部３１の一方の側部３１４に設けられ、排出口３４は、外周溶着部３１の他方の側部３１４に設けられている。そして、流入口３３および排出口３４は、外周溶着部３１の両方の側部３１４から互いに離間する方向に延設されている。   The temperature control bag 3A is formed of a flexible resin material. In this temperature control bag 3A, the first welding part 321 of the partition welding part 32 is formed from one side part 314 of the outer periphery welding part 31 toward the other side part 314, and the second welding part 322 is the outer periphery welding part. It is formed from the other side portion 314 of the portion 31 toward the one side portion 314. The inflow port 33 is provided on one side 314 of the outer periphery welded portion 31, and the discharge port 34 is provided on the other side portion 314 of the outer periphery welded portion 31. The inflow port 33 and the discharge port 34 are extended in a direction away from both side portions 314 of the outer periphery welded portion 31.

なお、本発明は前述の実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
例えば、バッテリユニット２は、薄型の蓄電装置２１が積層配置された構成に限らず、例えば、複数の円筒状の蓄電装置を集積配置した構成としてもよい。この場合、円筒状蓄電装置と円筒状蓄電装置とで形成される間隙に温調バッグを配置する。また、バッテリユニット２において、下側保持部材２２、上側保持部材２３、供給管２４、および収集管２５は、前記各実施形態で示した以外の場所に配置してもよい。 It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
For example, the battery unit 2 is not limited to the configuration in which the thin power storage devices 21 are stacked and arranged, for example, and may have a configuration in which a plurality of cylindrical power storage devices are integrated. In this case, a temperature control bag is arranged in a gap formed by the cylindrical power storage device and the cylindrical power storage device. In the battery unit 2, the lower holding member 22, the upper holding member 23, the supply pipe 24, and the collection pipe 25 may be arranged at locations other than those shown in the above embodiments.

前記各実施形態では、温調バッグ３、３Ａの内部空間が仕切られて流路３５が構成されたが、内部空間を仕切らずに、当該内部空間そのものを流路として構成してもよい。また、例えば、温調バッグ３、３Ａに流路３５を並列に分離して設け、温調流体の流動方向を逆向きに流動させることにより、一方の側部と他方の側部との温度偏倚を少なくすることができる。さらに、内側溶着部３２３、３２４は必須ではなく、仕切溶着部３２の各溶着部３２１、３２２を直線状に形成してもよい。   In each of the above embodiments, the internal space of the temperature control bags 3 and 3A is partitioned and the flow path 35 is configured. However, the internal space itself may be configured as a flow path without partitioning the internal space. Further, for example, by providing the temperature control bags 3 and 3A with the flow path 35 separated in parallel and causing the flow direction of the temperature control fluid to flow in the opposite direction, the temperature deviation between one side and the other side is determined. Can be reduced. Further, the inner welded portions 323 and 324 are not essential, and the welded portions 321 and 322 of the partition welded portion 32 may be formed linearly.

前記第１実施形態では、樹脂製フィルムを熱溶着することで温調バッグ３を構成したが、接着剤等による他の方法で貼付してもよい。   In the said 1st Embodiment, although the temperature control bag 3 was comprised by heat-welding a resin film, you may affix by the other method with an adhesive agent etc.

本発明は、蓄電装置に利用することができる他、温度調節が必要な機械、装置、流体等のあらゆる被温調対象に対して利用することができる。   The present invention can be used not only for power storage devices but also for all types of temperature-controlled objects such as machines, devices, and fluids that require temperature adjustment.

１ 温調システム
２ バッテリユニット
３、３Ａ 温調バッグ
４ ポンプ（流体供給装置）
５ 温調ユニット
２１ 蓄電装置
３２ 仕切溶着部（仕切部）
３５ 流路 DESCRIPTION OF SYMBOLS 1 Temperature control system 2 Battery unit 3, 3A Temperature control bag 4 Pump (fluid supply device)
5 Temperature Control Unit 21 Power Storage Device 32 Partition Welding Part (Partition Part)
35 channels

Claims (4)

蓄電装置用の温調バッグであって、
可撓性を有する樹脂材またはゴム材により内部空間を有する袋状に形成され、
前記内部空間により冷却流体または加熱流体の流路が構成されていることを特徴とする温調バッグ。 A temperature control bag for a power storage device,
It is formed into a bag shape having an internal space with a flexible resin material or rubber material,
A cooling bag or a heating fluid channel is constituted by the internal space. 請求項１に記載の温調バッグにおいて、
一対の樹脂製フィルムまたはゴム製フィルムを重ねて部分的に貼付して構成されたことを特徴とする温調バッグ。 In the temperature control bag of Claim 1,
A temperature control bag comprising a pair of resin film or rubber film and partially pasted thereon. 請求項１または請求項２に記載の温調バッグにおいて、
前記内部空間を仕切る仕切部を備え、当該仕切部により前記流路が構成されていることを特徴とする温調バッグ。 In the temperature control bag of Claim 1 or Claim 2,
A temperature control bag comprising a partition part for partitioning the internal space, wherein the flow path is constituted by the partition part. 積層配置された蓄電装置用の温調システムであって、
請求項１から請求項３のいずれかに記載の温調バッグと、
前記温調バッグに前記冷却流体または前記加熱流体を供給する流体供給装置とを備え、
各蓄電装置間の隙間に前記温調バッグが配置されていることを特徴とする温調システム。 A temperature control system for power storage devices arranged in a stack,
The temperature control bag according to any one of claims 1 to 3,
A fluid supply device for supplying the cooling fluid or the heating fluid to the temperature control bag,
A temperature control system, wherein the temperature control bag is disposed in a gap between the power storage devices.
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