JP5906921B2 - Battery module and vehicle - Google Patents
Battery module and vehicle Download PDFInfo
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- JP5906921B2 JP5906921B2 JP2012098828A JP2012098828A JP5906921B2 JP 5906921 B2 JP5906921 B2 JP 5906921B2 JP 2012098828 A JP2012098828 A JP 2012098828A JP 2012098828 A JP2012098828 A JP 2012098828A JP 5906921 B2 JP5906921 B2 JP 5906921B2
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- heat transfer
- heat
- battery
- transfer plate
- battery module
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- 230000017525 heat dissipation Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Description
本発明は、電池と、電池の側面に接する接触面を有する伝熱プレートと、からなる電池モジュール及び車両に関する。 The present invention relates to a battery module and a vehicle including a battery and a heat transfer plate having a contact surface in contact with a side surface of the battery.
近年、二次電池（電池）の大電流での充電及び放電や二次電池の大容量化が要求されるようになっている。しかし、大電流での充電及び放電は二次電池内部の大きな発熱を伴うことから二次電池の温度が上昇し、二次電池の性能の劣化を促進してしまう。また、二次電池によっては環境温度が低いと放電性能が低下する。このため、二次電池を規定温度に温度調節することが必要である。 In recent years, charging and discharging of a secondary battery (battery) with a large current and an increase in capacity of the secondary battery have been required. However, charging and discharging with a large current accompany large heat generation inside the secondary battery, so that the temperature of the secondary battery rises and promotes deterioration of the performance of the secondary battery. In addition, depending on the secondary battery, the discharge performance deteriorates when the environmental temperature is low. For this reason, it is necessary to adjust the temperature of the secondary battery to a specified temperature.
特許文献１に記載の電池ユニットは、複数の電池モジュールからなる組電池と、電池モジュールの間に配設されるヒートシンクと、から構成されている。ヒートシンクには、電池モジュールの側面に隣接する隣接部と、組電池の外方に突出する放熱部が形成されている。放熱部には、ヒートシンクにおいて電池モジュールとの対向方向に延びる複数のフィンが形成されている。そして、冷却媒体と放熱部が接触すると、接触部が冷却され、接触部を介して隣接部が冷却される。隣接部と電池モジュールの側面は隣接しているため、隣接部の冷却に伴い電池モジュールが冷却される。 The battery unit described in Patent Document 1 includes an assembled battery composed of a plurality of battery modules and a heat sink disposed between the battery modules. The heat sink has an adjacent portion adjacent to the side surface of the battery module and a heat radiating portion protruding outward from the assembled battery. A plurality of fins extending in the direction of facing the battery module in the heat sink are formed in the heat dissipation portion. And if a cooling medium and a thermal radiation part contact, a contact part will be cooled and an adjacent part will be cooled via a contact part. Since the adjacent part and the side surface of the battery module are adjacent to each other, the battery module is cooled as the adjacent part is cooled.
ところで、特許文献１では、ヒートシンクに形成されるフィンの形状が複雑であり、ヒートシンクの製造に手間がかかっている。
本発明は、このような従来技術の問題点に鑑みてなされたものであり、その目的は、伝熱プレートの形状を簡素にすることができる電池モジュール及び車両を提供することにある。
By the way, in patent document 1, the shape of the fin formed in a heat sink is complicated, and it takes time to manufacture the heat sink.
The present invention has been made in view of such problems of the prior art, and an object thereof is to provide a battery module and a vehicle that can simplify the shape of a heat transfer plate.
上記課題を解決するため、請求項１に記載の発明は、電池と、電池の側面に接する接触面を有する伝熱プレートと、からなる電池モジュールであって、前記伝熱プレートは、前記電池の一方の側面に接する第１伝熱部、前記電池の他方の側面に接する第２伝熱部、及び前記第１伝熱部と第２伝熱部とを連結する第３伝熱部を有する平面視コ字状に形成され、前記第１伝熱部の縁部のうち前記第３伝熱部とは反対側の第１の縁部、及び前記第２伝熱部の縁部のうち前記第３伝熱部とは反対側の第２の縁部に、前記接触面と面一の放熱面を有するフィンを形成し、前記フィンは、前記第１の縁部から前記第３伝熱部側に向けて凹む第１の凹部と、前記第１の凹部に隣り合う第１の凸部と、前記第２の縁部から前記第３伝熱部側に向けて凹む第２の凹部と、前記第２の凹部に隣り合う第２の凸部とを有し、前記第２の凹部は前記第１の凸部と対向する位置に形成され、前記第２の凸部は前記第１の凹部と対向する位置に形成されていることを要旨とする。 To solve the above problems, the invention according to claim 1, a battery, a battery module consisting of a heat transfer plate, having a contact surface in contact with the side surfaces of the battery, the heat transfer plate, the battery A plane having a first heat transfer portion in contact with one side surface, a second heat transfer portion in contact with the other side surface of the battery, and a third heat transfer portion connecting the first heat transfer portion and the second heat transfer portion. It is formed in a U-shape, and the first edge of the first heat transfer part opposite to the third heat transfer part and the first of the edges of the second heat transfer part. A fin having a heat radiating surface flush with the contact surface is formed on the second edge opposite to the third heat transfer section, and the fin is connected to the third heat transfer section side from the first edge. A first recess recessed toward the first recess, a first projection adjacent to the first recess, and a second recess recessed from the second edge toward the third heat transfer portion. And a second convex portion adjacent to the second concave portion, the second concave portion is formed at a position facing the first convex portion, and the second convex portion is the first convex portion. The gist of the present invention is that it is formed at a position facing one recess .
これによれば、接触面と放熱面が面一となるため、伝熱プレートは簡素な構成となる。したがって、伝熱プレートを容易に製造することができる。 According to this, since the contact surface and the heat radiation surface are flush with each other, the heat transfer plate has a simple configuration. Therefore, the heat transfer plate can be easily manufactured .
また、第１の凹部及び第２の凹部によって熱媒体が流通する流路が形成されるため、フィンによって熱媒体の流通を阻害することが抑制される。 Moreover, since the flow path through which the heat medium flows is formed by the first recess and the second recess , it is possible to prevent the heat medium from being blocked by the fins .
また、上記構成によれば、例えば、板状の部材を打ち抜き加工することで伝熱プレートを形成する場合に、製造工程が少なくなり、製造が容易になる。
請求項２に記載の発明は、請求項１に記載の電池モジュールであって、前記接触面に、絶縁層を形成したことを要旨とする。
Moreover, according to the said structure, when forming a heat-transfer plate by punching a plate-shaped member, for example, a manufacturing process decreases and manufacture becomes easy .
The invention according to claim 2 is the battery module according to claim 1 , wherein an insulating layer is formed on the contact surface.
これによれば、電池と伝熱プレートの絶縁が適切に行われる。
請求項３に記載の発明は、車両であって、請求項１又は請求項２に記載の電池モジュールと、前記電池モジュールの温度調節を行う温度調節装置と、を搭載したことを要旨とする。
According to this, the battery and the heat transfer plate are appropriately insulated.
The invention according to claim 3 is a vehicle, and is summarized in that the battery module according to claim 1 or claim 2 and a temperature adjusting device for adjusting the temperature of the battery module are mounted.
これによれば、車両に搭載される電池モジュールは、温度調節装置によって適切に加熱又は冷却される。したがって、車両は電池からの電力によって適切に走行することができる。 According to this, the battery module mounted in the vehicle is appropriately heated or cooled by the temperature control device. Therefore, the vehicle can travel appropriately with the electric power from the battery.
本発明によれば、伝熱プレートの形状を簡素にすることができる。 According to the present invention, the shape of the heat transfer plate can be simplified.
図１に示すように、車両に搭載される電池モジュール１は、電池としての角形電池１０を、角形電池１０の厚み方向に複数並設するとともに、各角形電池１０の間に板状の伝熱プレート１１を配設することで構成されている。また、車両には、電池モジュール１に熱媒体を供給する供給手段（例えば、送風機）と、熱媒体を加熱又は冷却する温度調節手段（例えば、熱電変換素子）と、を備えた温度調節装置が搭載されている。電池モジュール１において角形電池１０の幅方向両側には、角形電池１０の厚み方向に延びるダクト２が設けられている。本実施形態の電池モジュール１は、ダクト２の内部に熱媒体を流通させることで、熱媒体と伝熱プレート１１とを熱交換させ、伝熱プレート１１を介して角形電池１０の温度調節が行われる電池モジュールである。 As shown in FIG. 1, a battery module 1 mounted on a vehicle has a plurality of rectangular batteries 10 as batteries arranged side by side in the thickness direction of the rectangular battery 10, and a plate-like heat transfer between the rectangular batteries 10. The plate 11 is arranged. In addition, the vehicle includes a temperature adjustment device including supply means (for example, a blower) for supplying a heat medium to the battery module 1 and temperature adjustment means (for example, a thermoelectric conversion element) for heating or cooling the heat medium. It is installed. In the battery module 1, ducts 2 extending in the thickness direction of the prismatic battery 10 are provided on both sides of the prismatic battery 10 in the width direction. In the battery module 1 of the present embodiment, the heat medium is circulated in the duct 2 to exchange heat between the heat medium and the heat transfer plate 11, and the temperature of the prismatic battery 10 is adjusted via the heat transfer plate 11. Battery module.
角形電池１０の厚み方向の側面（以下単に「側面」という）は、四角状をなしている。そして、伝熱プレート１１は、角形電池１０の側面と接するように配設されている。伝熱プレート１１は、アルミニウムから形成されている。 A side surface (hereinafter simply referred to as “side surface”) in the thickness direction of the prismatic battery 10 has a square shape. The heat transfer plate 11 is disposed in contact with the side surface of the prismatic battery 10. The heat transfer plate 11 is made of aluminum.
図２（ａ）に示すように、伝熱プレート１１において角形電池１０の側面と対向する面となる接触面１２は、四角状をなしている。また、伝熱プレート１１の接触面１２の面積は、角形電池１０の側面の面積と同一となっている。接触面１２において角形電池１０の幅方向に沿う方向の両側には、熱媒体と熱交換を行う第１の放熱面１３ａ及び第２の放熱面１３ｂが延設されている。接触面１２、第１の放熱面１３ａ及び第２の放熱面１３ｂは同一平面上に存在する。すなわち、面一となっている。 As shown in FIG. 2A, the contact surface 12 that is a surface facing the side surface of the prismatic battery 10 in the heat transfer plate 11 has a square shape. The area of the contact surface 12 of the heat transfer plate 11 is the same as the area of the side surface of the prismatic battery 10. On both sides of the contact surface 12 in the direction along the width direction of the rectangular battery 10, a first heat radiating surface 13 a and a second heat radiating surface 13 b that exchange heat with the heat medium are extended. The contact surface 12, the first heat radiating surface 13a, and the second heat radiating surface 13b are on the same plane. That is, it is flush.
第１の放熱面１３ａには、角形電池１０の幅方向に沿う第１の縁部１１ａから第１の縁部１１ａに対向する第２の縁部１１ｂに向けて凹む第１の凹部１４及び第１の凹部１４に隣り合う第１の凸部１５が交互に形成されている。第１の凹部１４及び第１の凸部１５は、伝熱プレート１１において角形電池１０の高さ方向（角形電池１０の厚み方向及び幅方向に直交する方向）に沿う第３の縁部１１ｃから第３の縁部１１ｃと対向する第４の縁部１１ｄに向けて、第１の凹部１４→第１の凸部１５の順に形成されている。第１の凹部１４は、第１の凸部１５を挟むように４箇所に形成されている。第１の凸部１５は、第１の凹部１４に挟まれるように３箇所に形成されている。 The first heat radiating surface 13a includes a first recess 14 and a first recess 14 that are recessed from the first edge 11a along the width direction of the prismatic battery 10 toward the second edge 11b that faces the first edge 11a. First convex portions 15 adjacent to one concave portion 14 are alternately formed. The first concave portion 14 and the first convex portion 15 are formed from the third edge portion 11 c along the height direction of the rectangular battery 10 (direction orthogonal to the thickness direction and the width direction of the rectangular battery 10) in the heat transfer plate 11. The first concave portion 14 is formed in the order of the first convex portion 15 toward the fourth edge portion 11d facing the third edge portion 11c. The first concave portion 14 is formed at four locations so as to sandwich the first convex portion 15. The first convex portion 15 is formed at three locations so as to be sandwiched between the first concave portions 14.
第２の放熱面１３ｂには、第２の縁部１１ｂから第１の縁部１１ａに向けて凹む第２の凹部１６及び第２の凹部１６に隣り合う第２の凸部１７が交互に形成されている。第２の凹部１６及び第２の凸部１７は、第３の縁部１１ｃから第４の縁部１１ｄに向けて第２の凸部１７→第２の凹部１６の順に形成されている。第２の凸部１７は、第２の凹部１６を挟むように４箇所に形成されている。第２の凹部１６は、第２の凸部１７に挟まれるように３箇所に形成されている。したがって、第１の放熱面１３ａと第２の放熱面１３ｂとでは、凹部１４，１６及び凸部１５，１７が形成される順番が逆になっている。すなわち、第１の放熱面１３ａにおいて第１の凹部１４が形成されている部分が、第２の放熱面１３ｂにおいては第２の凸部１７が形成される部分になっている。同様に、第１の放熱面１３ａにおいて第１の凸部１５が形成される部分が、第２の放熱面１３ｂにおいては第２の凹部１６が形成される部分になっている。したがって、第２の凹部１６は、第１の凸部１５と対向する位置に形成されており、第２の凸部１７は、第１の凹部１４と対向する位置に形成されている。 On the second heat radiating surface 13b, second concave portions 16 that are recessed from the second edge portion 11b toward the first edge portion 11a and second convex portions 17 that are adjacent to the second concave portion 16 are alternately formed. Has been. The second concave portion 16 and the second convex portion 17 are formed in the order of the second convex portion 17 → the second concave portion 16 from the third edge portion 11c toward the fourth edge portion 11d. The 2nd convex part 17 is formed in four places so that the 2nd recessed part 16 may be pinched | interposed. The second concave portion 16 is formed at three locations so as to be sandwiched between the second convex portions 17. Therefore, the order in which the concave portions 14 and 16 and the convex portions 15 and 17 are formed is reversed between the first heat radiating surface 13a and the second heat radiating surface 13b. That is, the portion where the first concave portion 14 is formed on the first heat radiating surface 13a is the portion where the second convex portion 17 is formed on the second heat radiating surface 13b. Similarly, the portion where the first convex portion 15 is formed on the first heat radiating surface 13a is the portion where the second concave portion 16 is formed on the second heat radiating surface 13b. Therefore, the second concave portion 16 is formed at a position facing the first convex portion 15, and the second convex portion 17 is formed at a position facing the first concave portion 14.
凹部１４，１６及び凸部１５，１７は、その形状が四角状をなしている。第１の凹部１４及び第１の凸部１５と第２の凹部１６及び第２の凸部１７は、同一ピッチで形成されている。 The concave portions 14 and 16 and the convex portions 15 and 17 have a square shape. The first concave portion 14 and the first convex portion 15, and the second concave portion 16 and the second convex portion 17 are formed at the same pitch.
図２（ｂ）に示すように、本実施形態では、伝熱プレート１１の厚みＴは、０．５ｍｍ〜１．０ｍｍに設定されている。
そして、伝熱プレート１１を角形電池１０の間に配設した状態で、接触面１２は角形電池１０の側面に接する。また、凸部１５，１７は、接触面１２から、接触面１２における角形電池１０の幅方向に沿う方向に延設される。そして、角形電池１０の幅方向に対して突出した凸部１５，１７は、ダクト２の内部に突出する。
As shown in FIG.2 (b), in this embodiment, the thickness T of the heat-transfer plate 11 is set to 0.5 mm-1.0 mm.
The contact surface 12 is in contact with the side surface of the prismatic battery 10 with the heat transfer plate 11 disposed between the prismatic batteries 10. The convex portions 15 and 17 extend from the contact surface 12 in a direction along the width direction of the rectangular battery 10 on the contact surface 12. And the convex parts 15 and 17 which protruded with respect to the width direction of the square battery 10 protrude inside the duct 2.
そして、温度調節手段によって加熱又は冷却された熱媒体（例えば、空気や冷却水）をダクト２の内部に流通させることで、熱媒体は、第１の放熱面１３ａ及び第２の放熱面１３ｂに形成された凸部１５，１７と熱交換を行う。したがって、凸部１５，１７がフィンとして機能している。そして、角形電池１０は、伝熱プレート１１を介して加熱又は冷却される。熱媒体は、凹部１４，１６を流通することで、ダクト２の内部を流通する。したがって、凹部１４，１６は熱媒体が流通する流路として機能している。 Then, the heat medium heated or cooled by the temperature adjusting means (for example, air or cooling water) is circulated in the duct 2 so that the heat medium is transferred to the first heat radiating surface 13a and the second heat radiating surface 13b. Heat exchange is performed with the formed protrusions 15 and 17. Therefore, the convex parts 15 and 17 function as fins. The prismatic battery 10 is heated or cooled via the heat transfer plate 11. The heat medium flows through the inside of the duct 2 by flowing through the recesses 14 and 16. Accordingly, the recesses 14 and 16 function as flow paths through which the heat medium flows.
次に、本実施形態における電池モジュール１の作用について説明する。
図３に示すように、本実施形態における伝熱プレート１１は、１枚の板状の部材２１を打ち抜くことで形成されている。伝熱プレート１１は、接触面１２と放熱面１３ａ，１３ｂが面一に形成されているため、伝熱プレート１１を打ち抜くだけで伝熱プレート１１を形成することができる。
Next, the operation of the battery module 1 in the present embodiment will be described.
As shown in FIG. 3, the heat transfer plate 11 in the present embodiment is formed by punching one plate-like member 21. Since the heat transfer plate 11 has the contact surface 12 and the heat radiating surfaces 13a and 13b flush with each other, the heat transfer plate 11 can be formed simply by punching out the heat transfer plate 11.
また、本実施形態では、第１の凹部１４と対向する位置に第２の凸部１７を形成し、第１の凸部１５と対向する位置に第２の凹部１６を形成しているため、図３に示すように第２の凹部１６及び第２の凸部１７を形成するように板状の部材２１を打ち抜くと、次に打ち抜かれる伝熱プレート１１の第１の凹部１４及び第１の凸部１５が同時に打ち抜かれる。この結果、１回の打ち抜き加工で、伝熱プレート１１の第２の凹部１６及び第２の凸部１７と、次に打ち抜かれる伝熱プレート１１の第１の凹部１４及び第１の凸部１５を同時に形成することができる。したがって、２枚の伝熱プレート１１を用意し、第１の放熱面１３ａと第２の放熱面１３ｂを合わせると、第１の凸部１５が第２の凹部１６に嵌合し、第２の凸部１７が第１の凹部１４に嵌合するようになっている。 In the present embodiment, the second convex portion 17 is formed at a position facing the first concave portion 14, and the second concave portion 16 is formed at a position facing the first convex portion 15. As shown in FIG. 3, when the plate-like member 21 is punched so as to form the second recess 16 and the second protrusion 17, the first recess 14 and the first recess of the heat transfer plate 11 to be punched next are performed. The convex portion 15 is punched at the same time. As a result, the second concave portion 16 and the second convex portion 17 of the heat transfer plate 11 and the first concave portion 14 and the first convex portion 15 of the heat transfer plate 11 to be punched next are punched once. Can be formed simultaneously. Therefore, when the two heat transfer plates 11 are prepared and the first heat radiating surface 13a and the second heat radiating surface 13b are combined, the first convex portion 15 is fitted into the second concave portion 16, and the second The convex portion 17 is adapted to fit into the first concave portion 14.
したがって、上記実施形態によれば、以下のような効果を得ることができる。
（１）伝熱プレート１１には、角形電池１０の側面に接する接触面１２と、接触面１２において角形電池１０の幅方向に沿う方向に延設された放熱面１３ａ，１３ｂが形成されている。接触面１２と、放熱面１３ａ，１３ｂとは面一に形成されており、伝熱プレート１１は簡素な形状となっている。したがって、１枚の板状の部材２１を打ち抜くことで、伝熱プレート１１を製造することができ、伝熱プレート１１の製造が容易となる。
Therefore, according to the above embodiment, the following effects can be obtained.
(1) The heat transfer plate 11 is formed with a contact surface 12 in contact with the side surface of the prismatic battery 10 and heat radiating surfaces 13a and 13b extending on the contact surface 12 in a direction along the width direction of the prismatic battery 10. . The contact surface 12 and the heat radiating surfaces 13a and 13b are formed flush with each other, and the heat transfer plate 11 has a simple shape. Therefore, the heat transfer plate 11 can be manufactured by punching out one plate-like member 21, and the manufacture of the heat transfer plate 11 becomes easy.
（２）第１の放熱面１３ａ及び第２の放熱面１３ｂに凹部１４，１６を形成している。このため、凹部１４，１６によって熱媒体が流通する流路が形成されるため、放熱面１３ａ，１３ｂによって熱媒体の流通が阻害されることが抑制される。 (2) Concave portions 14 and 16 are formed in the first heat radiating surface 13a and the second heat radiating surface 13b. For this reason, since the flow path through which the heat medium flows is formed by the recesses 14 and 16, the heat dissipation surfaces 13a and 13b are prevented from obstructing the flow of the heat medium.
（３）第１の放熱面１３ａに形成された第１の凸部１５は、第２の放熱面１３ｂに形成された第２の凹部１６と対向する位置に形成されている。同様に、第２の放熱面１３ｂに形成された第２の凸部１７は、第１の放熱面１３ａに形成された第１の凹部１４と対向する位置に形成されている。したがって、板状の部材２１を打ち抜くことで伝熱プレート１１の第２の凹部１６及び第２の凸部１７を形成すると、次に打ち抜かれる伝熱プレート１１の第１の凹部１４及び第１の凸部１５が同時に形成される。この結果、伝熱プレート１１の製造工程が少なくなり、伝熱プレート１１の製造が容易になる。 (3) The 1st convex part 15 formed in the 1st heat radiating surface 13a is formed in the position facing the 2nd recessed part 16 formed in the 2nd heat radiating surface 13b. Similarly, the 2nd convex part 17 formed in the 2nd heat radiating surface 13b is formed in the position facing the 1st recessed part 14 formed in the 1st heat radiating surface 13a. Therefore, when the 2nd recessed part 16 and the 2nd convex part 17 of the heat-transfer plate 11 are formed by punching the plate-shaped member 21, the 1st recessed part 14 and the 1st 1st of the heat-transfer plate 11 which are punched out next. The convex part 15 is formed simultaneously. As a result, the manufacturing process of the heat transfer plate 11 is reduced, and the manufacture of the heat transfer plate 11 is facilitated.
（４）車両に搭載される電池モジュール１は、伝熱プレート１１と熱媒体との熱交換によって適切に加熱又は冷却される。このため、車両は角形電池１０からの電力によって適切に走行することができる。 (4) The battery module 1 mounted on the vehicle is appropriately heated or cooled by heat exchange between the heat transfer plate 11 and the heat medium. For this reason, the vehicle can travel appropriately with the electric power from the rectangular battery 10.
なお、実施形態は以下のように変更してもよい。
○ 図４に示すように、伝熱プレート１１における角形電池１０と対向する面（接触面１２）に絶縁層１８を形成してもよい。この場合、角形電池１０と伝熱プレート１１との絶縁が適切に行われる。絶縁層１８は、樹脂や、他の絶縁材料から形成されている。
In addition, you may change embodiment as follows.
As shown in FIG. 4, you may form the insulating layer 18 in the surface (contact surface 12) facing the square battery 10 in the heat-transfer plate 11. As shown in FIG. In this case, insulation between the rectangular battery 10 and the heat transfer plate 11 is appropriately performed. The insulating layer 18 is made of resin or other insulating material.
○ 図５に示すように、放熱面１３ａ，１３ｂに貫通孔３１を形成してもよい。この場合、熱媒体は、貫通孔３１を流通する。
○ 図６に示すように伝熱プレート４１の形状を、平面視コ字状をなすようにしてもよい。すなわち、角形電池１０の厚み方向両面に接する伝熱部４１ａと、角形電池１０の幅方向一面に接する伝熱部４１ｂを連設してなる伝熱プレート４１を用いてもよい。この場合、角形電池１０の厚み方向両面及び角形電池１０の幅方向一面は、伝熱プレート４１と接する。そして、角形電池１０において伝熱プレート４１と接さない幅方向の面に対して伝熱プレート４１は突出し、これにより放熱面１３が形成されている。
As shown in FIG. 5, you may form the through-hole 31 in the thermal radiation surface 13a, 13b. In this case, the heat medium flows through the through hole 31.
As shown in FIG. 6, the shape of the heat transfer plate 41 may be a U-shape in plan view. That is, a heat transfer plate 41 in which a heat transfer portion 41 a that contacts both surfaces in the thickness direction of the prismatic battery 10 and a heat transfer portion 41 b that contacts one surface in the width direction of the prismatic battery 10 may be used. In this case, both sides in the thickness direction of the prismatic battery 10 and one surface in the width direction of the prismatic battery 10 are in contact with the heat transfer plate 41. And in the square battery 10, the heat-transfer plate 41 protrudes with respect to the surface of the width direction which does not contact the heat-transfer plate 41, and the heat-radiation surface 13 is formed by this.
○ 実施形態において、角形電池１０の温度調節をさほど必要としない場合には、伝熱プレート１１として、絶縁性の樹脂からなる伝熱プレート１１を用いてもよい。この場合、伝熱プレート１１の伝熱効率は低下するが、絶縁性は向上する。また、伝熱プレート１１は、銅など、伝熱効率の高い他の材料製でもよい。 In the embodiment, when the temperature adjustment of the prismatic battery 10 is not so necessary, the heat transfer plate 11 made of an insulating resin may be used as the heat transfer plate 11. In this case, the heat transfer efficiency of the heat transfer plate 11 is reduced, but the insulation is improved. The heat transfer plate 11 may be made of another material having high heat transfer efficiency such as copper.
○ 実施形態において、電池モジュール１をケースに収容する場合、角形電池１０とケースの壁面の間に伝熱プレート１１を配設してもよい。すなわち、伝熱プレート１１は、角形電池１０の側面と接していれば、どのような場所に配設されていてもよい。 In embodiment, when accommodating the battery module 1 in a case, you may arrange | position the heat-transfer plate 11 between the square battery 10 and the wall surface of a case. That is, the heat transfer plate 11 may be disposed at any location as long as it contacts the side surface of the prismatic battery 10.
○ 実施形態において、電池として円筒形電池や、ラミネート形状の電池を採用してもよい。この場合、電池の形状に合わせて電池の側面と伝熱プレート１１が接するように伝熱プレート１１の形状を変更する。 In the embodiment, a cylindrical battery or a laminated battery may be employed as the battery. In this case, the shape of the heat transfer plate 11 is changed so that the side surface of the battery and the heat transfer plate 11 are in contact with each other according to the shape of the battery.
○ 実施形態において、第１の放熱面１３ａ及び第２の放熱面１３ｂのうちどちらか一方にのみ凹部１４，１６及び凸部１５，１７を形成してもよい。また、伝熱プレート１１において角形電池１０の高さ方向に沿う方向に放熱面を形成し、この放熱面に凹部１４，１６及び凸部１５，１７を形成してもよい。 In the embodiment, the concave portions 14 and 16 and the convex portions 15 and 17 may be formed only in one of the first heat radiating surface 13a and the second heat radiating surface 13b. Further, a heat radiating surface may be formed in the heat transfer plate 11 in a direction along the height direction of the rectangular battery 10, and the concave portions 14 and 16 and the convex portions 15 and 17 may be formed on the heat radiating surface.
○ 実施形態において、伝熱プレート１１の厚みＴを変更してもよい。
○ 実施形態において、第１の放熱面１３ａ及び第２の放熱面１３ｂに、凹部１４，１６及び凸部１５，１７を形成せず、放熱面１３ａ，１３ｂ全体をフィンとして機能させてもよい。この場合、熱媒体の流通を阻害しないように、角形電池１０の高さ方向から熱媒体を流通させることが好ましい。
In the embodiment, the thickness T of the heat transfer plate 11 may be changed.
In the embodiment, the recesses 14 and 16 and the protrusions 15 and 17 may not be formed in the first heat dissipation surface 13a and the second heat dissipation surface 13b, and the entire heat dissipation surfaces 13a and 13b may function as fins. In this case, it is preferable to circulate the heat medium from the height direction of the prismatic battery 10 so as not to disturb the circulation of the heat medium.
○ 実施形態において、凹部１４，１６及び凸部１５，１７の形状は、三角形状や円弧状など、他の形状であってもよい。
○ 実施形態において、凹部１４，１６及び凸部１５，１７が形成される箇所を減らしてもよいし、増やしてもよい。
In the embodiment, the shapes of the concave portions 14 and 16 and the convex portions 15 and 17 may be other shapes such as a triangular shape or an arc shape.
In the embodiment, the locations where the concave portions 14 and 16 and the convex portions 15 and 17 are formed may be reduced or increased.
○ 実施形態において、接触面１２の形状は、正方形状、長方形状など電池の側面に合わせて変更してもよい。
上記実施形態及び変更例から導き出せる技術思想を以下に追記する。
電池と、電池の側面に接する接触面を有する伝熱プレートと、からなる電池モジュールであって、前記伝熱プレートに、前記接触面と面一の放熱面を有するフィンを形成し、前記放熱面には、貫通孔が形成されている。
In the embodiment, the shape of the contact surface 12 may be changed according to the side surface of the battery, such as a square shape or a rectangular shape.
The technical ideas that can be derived from the above-described embodiments and modified examples are added below.
A battery module comprising a battery and a heat transfer plate having a contact surface in contact with a side surface of the battery, wherein the heat transfer plate is formed with fins having a heat dissipation surface flush with the contact surface, and the heat dissipation surface Has a through hole.
１…電池モジュール、１０…角形電池、１１，４１…伝熱プレート、１１ａ…第１の縁部、１１ｂ…第２の縁部、１２…接触面、１３，１３ａ，１３ｂ…放熱面、１４，１６…凹部、１５，１７…凸部。 DESCRIPTION OF SYMBOLS 1 ... Battery module, 10 ... Square battery, 11, 41 ... Heat-transfer plate, 11a ... 1st edge part, 11b ... 2nd edge part, 12 ... Contact surface, 13, 13a, 13b ... Heat radiation surface, 14, 16 ... concave part, 15, 17 ... convex part.
Claims (3)
前記伝熱プレートは、前記電池の一方の側面に接する第１伝熱部、前記電池の他方の側面に接する第２伝熱部、及び前記第１伝熱部と第２伝熱部とを連結する第３伝熱部を有する平面視コ字状に形成され、
前記第１伝熱部の縁部のうち前記第３伝熱部とは反対側の第１の縁部、及び前記第２伝熱部の縁部のうち前記第３伝熱部とは反対側の第２の縁部に、前記接触面と面一の放熱面を有するフィンを形成し、
前記フィンは、前記第１の縁部から前記第３伝熱部側に向けて凹む第１の凹部と、前記第１の凹部に隣り合う第１の凸部と、前記第２の縁部から前記第３伝熱部側に向けて凹む第２の凹部と、前記第２の凹部に隣り合う第２の凸部とを有し、
前記第２の凹部は前記第１の凸部と対向する位置に形成され、前記第２の凸部は前記第１の凹部と対向する位置に形成されていることを特徴とする電池モジュール。 A battery module comprising a battery and a heat transfer plate having a contact surface in contact with a side surface of the battery,
The heat transfer plate connects the first heat transfer unit in contact with one side surface of the battery, the second heat transfer unit in contact with the other side surface of the battery, and the first heat transfer unit and the second heat transfer unit. Is formed in a U-shape in a plan view having a third heat transfer portion,
Of the edge part of the first heat transfer part, the first edge part opposite to the third heat transfer part, and of the edge part of the second heat transfer part, opposite to the third heat transfer part. A fin having a heat radiating surface flush with the contact surface is formed on the second edge of
The fin includes a first recess recessed from the first edge toward the third heat transfer section, a first protrusion adjacent to the first recess, and the second edge. A second concave portion recessed toward the third heat transfer portion side, and a second convex portion adjacent to the second concave portion,
The battery module, wherein the second concave portion is formed at a position facing the first convex portion, and the second convex portion is formed at a position facing the first concave portion.
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