JP7074486B2 - Secondary battery module - Google Patents

Secondary battery module Download PDF

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JP7074486B2
JP7074486B2 JP2018010209A JP2018010209A JP7074486B2 JP 7074486 B2 JP7074486 B2 JP 7074486B2 JP 2018010209 A JP2018010209 A JP 2018010209A JP 2018010209 A JP2018010209 A JP 2018010209A JP 7074486 B2 JP7074486 B2 JP 7074486B2
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secondary battery
housing
battery module
electronic component
heat dissipation
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JP2019129077A (en
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航 佐藤
独志 西森
明徳 多田
啓 坂部
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Vehicle Energy Japan Inc
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Vehicle Energy Japan Inc
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/667—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Description

本発明は、二次電池モジュールに関する。 The present invention relates to a secondary battery module.

近年、環境規制を背景に車載用二次電池への需要が高まっている。この中で、リチウムイオン二次電池は一般に、鉛電池やニッケル水素電池などに比べて放電電位が高いため、小型・高エネルギー密度化が可能であるため有望視されている。さらに、車両で用いられる電力としては、主にモータ等を駆動させる高電圧の回路と、ヘッドライトやウインカー等の電装品を駆動させる低電圧の回路があるため、二次電池から得られる電圧をＤＣ／ＤＣコンバータによって任意の電圧に変換して供給している。一般的に二次電池とＤＣ／ＤＣコンバータは独立した電気部品として車両に搭載されているが、さらなる効率向上や小型化を実現するため、二次電池とＤＣ／ＤＣコンバータを一体化し、複数の電圧を出力する二次電池モジュールが求められている。 In recent years, the demand for in-vehicle secondary batteries has been increasing against the background of environmental regulations. Among these, lithium-ion secondary batteries are generally considered to be promising because they have a higher discharge potential than lead batteries and nickel-metal hydride batteries, and therefore can be made smaller and have higher energy density. Furthermore, as the electric power used in the vehicle, there are a high voltage circuit that mainly drives a motor and the like and a low voltage circuit that drives electrical components such as a headlight and a blinker, so that the voltage obtained from the secondary battery can be used. It is converted to an arbitrary voltage by a DC / DC converter and supplied. Generally, the secondary battery and DC / DC converter are mounted on the vehicle as independent electrical components, but in order to further improve efficiency and reduce the size, the secondary battery and DC / DC converter are integrated into multiple units. There is a demand for a secondary battery module that outputs voltage.

しかし、二次電池とＤＣ／ＤＣコンバータはそれぞれジュール発熱によって温度が上昇するため、それぞれの発熱により一体型二次電池モジュールの温度上昇をより大きくする恐れがある。特にリチウムイオン二次電池は温度が高い状態が続くと電池の劣化が早まり、特性が低下する。このため、ＤＣ／ＤＣコンバータによる発熱が電池の温度上昇に影響しないようにする技術が求められている。これらの課題に対して、例えば電池と電子部品で発生した熱を効率的に取り除く構造が検討されている。 However, since the temperature of the secondary battery and the DC / DC converter rises due to Joule heat generation, the temperature rise of the integrated secondary battery module may be further increased due to the heat generation of each. In particular, when the temperature of a lithium-ion secondary battery continues to be high, the deterioration of the battery accelerates and the characteristics deteriorate. Therefore, there is a demand for a technique for preventing the heat generated by the DC / DC converter from affecting the temperature rise of the battery. To solve these problems, for example, a structure for efficiently removing heat generated by a battery and an electronic component is being studied.

例えば、特許文献１には、電池群および電気・電子ユニット部のいずれか一方およびその他方をそれぞれ冷却する第１および第２の冷却ファンが備えられた技術が開示されている。 For example, Patent Document 1 discloses a technique provided with first and second cooling fans for cooling one or the other of a battery group and an electric / electronic unit unit, respectively.

また、特許文献２には、バッテリケースとヒートシンクとに挟着され、このヒートシンクとの挟着部分の面積よりバッテリケースとの挟着部分の面積が大きい放熱板と、を備えた電池モジュールに関する技術が開示されている。 Further, Patent Document 2 discloses a technique relating to a battery module including a heat radiation plate sandwiched between a battery case and a heat sink, and the area of the sandwiched portion with the battery case is larger than the area of the sandwiched portion with the heat sink. Is disclosed.

特開２００６－２４５１０号公報Japanese Unexamined Patent Publication No. 2006-24510

特開２００４－７９２１９号公報Japanese Unexamined Patent Publication No. 2004-79219

しかし、特許文献１のように冷却ファンを電池モジュール内に設けた場合、構造が大型化し、また、通気口が必要になるため電池モジュールを密閉することができない。 However, when the cooling fan is provided in the battery module as in Patent Document 1, the structure becomes large and a vent is required, so that the battery module cannot be sealed.

また、特許文献２のような構造では、放熱板を介してある程度電子部品の熱は放熱されるものの、電池モジュール内部を通って二次電池に熱が伝わり二次電池の温度を上昇させる可能性がある。 Further, in the structure as in Patent Document 2, although the heat of the electronic component is radiated to some extent through the heat radiating plate, the heat may be transferred to the secondary battery through the inside of the battery module to raise the temperature of the secondary battery. There is.

本発明は、電池モジュールの大型化を極力抑えつつ、電子部品から二次電池への熱移動を抑制することができる電池モジュールの構造を提供することを目的とした。 An object of the present invention is to provide a structure of a battery module capable of suppressing heat transfer from an electronic component to a secondary battery while suppressing the increase in size of the battery module as much as possible.

上記課題を解決する手段の一例は以下である。 An example of the means for solving the above problem is as follows.

二次電池と、基板と、前記基板上に設けられた電子部品と、前記二次電池、前記基板および前記電子部品を収容する筐体を有する二次電池モジュールにおいて、前記二次電池モジュールは、前記二次電池と熱的に接触して、前記二次電池モジュールの外部に露出した二次電池放熱部と、前記電子部品と熱的に接触して前記二次電池モジュールの外部に露出した電子部品放熱部を有し、前記二次電池放熱部と、電子部品放熱部とは前記二次電池放熱部および前記電子部品放熱部よりも熱伝導率の低い固定部材により隔てられた二次電池モジュール。 In a secondary battery module having a secondary battery, a substrate, an electronic component provided on the substrate, the secondary battery, the substrate, and a housing accommodating the electronic component, the secondary battery module is a secondary battery module. The secondary battery heat dissipation part that is thermally contacted with the secondary battery and exposed to the outside of the secondary battery module, and the electrons that are thermally contacted with the electronic component and exposed to the outside of the secondary battery module. A secondary battery module having a component heat dissipation section, and the secondary battery heat dissipation section and the electronic component heat dissipation section are separated by a fixing member having a lower thermal conductivity than the secondary battery heat dissipation section and the electronic component heat dissipation section. ..

本発明により、電池モジュールの大型化を極力抑えつつ、電子部品から二次電池への熱移動を抑制した電池モジュールの構造を提供することができる。 INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a structure of a battery module in which heat transfer from an electronic component to a secondary battery is suppressed while suppressing the increase in size of the battery module as much as possible.

本発明の実施例１の二次電池モジュールの断面斜視図Cross-sectional perspective view of the secondary battery module according to the first embodiment of the present invention. 実施例１を説明する断面図Sectional drawing which explains Example 1. 実施例２を説明する断面図Sectional drawing which explains Example 2. 実施例３を説明する断面図Sectional drawing which explains Example 3. 実施例４を説明する断面図Sectional drawing which explains Example 4. 実施例５を説明する断面図Sectional drawing which explains Example 5. 実施例６を説明する断面図Sectional drawing which explains Example 6

以下発明を実施するための形態の例を実施例により説明する。 Hereinafter, examples of embodiments for carrying out the invention will be described with reference to examples.

（実施例１）
図１は本発明の実施例１の二次電池モジュールの断面斜視図、図２は、図１のＡ－Ａ’断面を上面から見た断面図である。 (Example 1)
FIG. 1 is a cross-sectional perspective view of the secondary battery module according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the AA'cross section of FIG. 1 as viewed from above.

二次電池モジュール１は、複数の角型電池５を積層させた電池群１１と、ＤＣ／ＤＣコンバータ６とＤＣ／ＤＣコンバータ６を支持する支持部材８とＤＣ／ＤＣコンバータ６を収納する第二の筐体４と、それらを収納する第一の筐体２および第一の筐体を密閉する筐体蓋３を有する。 The secondary battery module 1 houses a battery group 11 in which a plurality of square batteries 5 are stacked, a support member 8 for supporting the DC / DC converter 6 and the DC / DC converter 6, and the DC / DC converter 6. It has a housing 4 of the above, a first housing 2 for accommodating them, and a housing lid 3 for sealing the first housing.

第一の筐体２は、角形電池５が接した面と、この反対側の面であってＤＣ／ＤＣコンバータ６が設けられた側の面を有する。 The first housing 2 has a surface in contact with the square battery 5 and a surface on the opposite side thereof, which is the side on which the DC / DC converter 6 is provided.

電池群１１は、例えば幅広面と幅狭面を有するリチウムイオン二次電池等の角型電池５が幅広面を対向させて積層したものである。電池群１１は角型電池５を積層し、固縛部材７により第一の筐体２の側面に押圧され、接触するように配置される。角形電池５は、正極端子１５と負極端子１６を有しており、角形電池は、これらが設けられた幅狭と、この面の反対側の幅狭面である底面を有しており、底面が第一の筐体２に接した状態で二次電池モジュール１に収容されている。角形電池５にて発生した熱は、底面からから第一の筐体へ伝わる。第一の筐体２は二次電池モジュール１の外部に露出しているため、ここから熱は二次電池モジュールの外部へ放熱される。この構造において第一の筐体は二次電池放熱部として機能する。角形二次電池５と第一の筐体２とは直接接触していてもよく、その他熱的に接触している状態でもよい。ここで熱的に接触している状態とは、樹脂材料やゴム材料等の断熱材を介さずに直接的、または間接的に接続された状態である。 The battery group 11 is formed by stacking square batteries 5 such as a lithium ion secondary battery having a wide surface and a narrow surface with the wide surfaces facing each other. The battery group 11 is arranged so that the square batteries 5 are stacked and pressed against the side surface of the first housing 2 by the lashing member 7 so as to be in contact with each other. The square battery 5 has a positive electrode terminal 15 and a negative electrode terminal 16, and the square battery has a narrow surface in which these are provided and a bottom surface which is a narrow surface on the opposite side of this surface. Is housed in the secondary battery module 1 in a state of being in contact with the first housing 2. The heat generated by the square battery 5 is transferred from the bottom surface to the first housing. Since the first housing 2 is exposed to the outside of the secondary battery module 1, heat is dissipated from here to the outside of the secondary battery module. In this structure, the first housing functions as a secondary battery radiator. The square secondary battery 5 and the first housing 2 may be in direct contact with each other, or may be in thermal contact with each other. Here, the state of being in thermal contact is a state of being directly or indirectly connected without using a heat insulating material such as a resin material or a rubber material.

二次電池モジュール１は、この電池群１１を制御する制御基板、配線、リレー、ヒューズを有しており、これらは、支持部材８に設けられている。 The secondary battery module 1 has a control board, wiring, a relay, and a fuse that control the battery group 11, and these are provided on the support member 8.

支持部材８は、例えば板状の部材であり第一の筐体の中央部で、ＤＣ／ＤＣコンバータ６と電池群１１の間に位置している。支持部材８は、第一の筐体２に例えばボルトにて固定されている。また、支持部材８は、電池群１１側の面と、ＤＣ／ＤＣコンバータ６側の面を有している。電池群１１を制御する制御基板、配線、リレー、ヒューズは、電池群１１側の面に設けられている。 The support member 8 is, for example, a plate-shaped member and is located at the center of the first housing between the DC / DC converter 6 and the battery group 11. The support member 8 is fixed to the first housing 2 with, for example, bolts. Further, the support member 8 has a surface on the battery group 11 side and a surface on the DC / DC converter 6 side. The control board, wiring, relay, and fuse for controlling the battery group 11 are provided on the surface of the battery group 11 side.

第一の筐体２の、角形電池５が接した面の反対側の面にはＤＣ／ＤＣコンバータ６が設けられている。 A DC / DC converter 6 is provided on the surface of the first housing 2 opposite to the surface in contact with the square battery 5.

ＤＣ／ＤＣコンバータ６は、コイル、キャパシタ、半導体などの電子部品６ｂが基板６ａに配置される構成となっている。ＤＣ／ＤＣコンバータ６は、第二の筐体４に収容されており、基板６ａや電子部品６ｂは第二の筐体に熱的に接触している。第一の筐体２は、角形電池５が接した面の反対側の面に開口部１０を有している。第二の筐体４は凸形状を有しており、この凸形状の露出部４ａは、開口部１０から第一の筐体２の外部へ露出している。露出部４ａは、第一の筐体２の表面と略同一面となる高さとなっており、周囲空気へ露出している。 The DC / DC converter 6 has a configuration in which electronic components 6b such as coils, capacitors, and semiconductors are arranged on a substrate 6a. The DC / DC converter 6 is housed in the second housing 4, and the substrate 6a and the electronic component 6b are in thermal contact with the second housing. The first housing 2 has an opening 10 on a surface opposite to the surface in contact with the square battery 5. The second housing 4 has a convex shape, and the convex exposed portion 4a is exposed to the outside of the first housing 2 from the opening 10. The exposed portion 4a has a height that is substantially the same as the surface of the first housing 2, and is exposed to the ambient air.

このように第二の筐体４は、露出部４ａにより二次電池モジュール１の外部に露出しているため、ＤＣ／ＤＣコンバータ６が有する電子部品６ｂで発生した熱はここから二次電池モジュールの外部へ放熱される。この構造において第二の筐体は電子部品放熱部として機能する。電子部品６ｂとと第二の筐体４とは直接接触していてもよく、その他熱的に接触している状態でもよい。ここで熱的に接触している状態とは、樹脂材料やゴム材料等の断熱材を介さずに直接的、または間接的に接続された状態である。ここで、電子部品６ｂと第二の筐体４を密着させるため、電子部品６ｂと第二の筐体４の間に熱伝導率の高いシートやグリースを配置し、放熱経路の熱抵抗を低減する構造としてもよい。 Since the second housing 4 is exposed to the outside of the secondary battery module 1 by the exposed portion 4a, the heat generated in the electronic component 6b of the DC / DC converter 6 is generated from here to the secondary battery module 1. It is dissipated to the outside of. In this structure, the second housing functions as an electronic component heat dissipation unit. The electronic component 6b and the second housing 4 may be in direct contact with each other, or may be in thermal contact with each other. Here, the state of being in thermal contact is a state of being directly or indirectly connected without using a heat insulating material such as a resin material or a rubber material. Here, in order to bring the electronic component 6b and the second housing 4 into close contact with each other, a sheet or grease having high thermal conductivity is placed between the electronic component 6b and the second housing 4 to reduce the thermal resistance of the heat dissipation path. It may be a structure to be used.

支持部材８の電池群１１とは反対側の面には、ＤＣ／ＤＣコンバータ６の基板６ａと、第二の筐体４が固定されている。第二の筐体４は例えばボルトによって支持部材８に固定されている。 The substrate 6a of the DC / DC converter 6 and the second housing 4 are fixed to the surface of the support member 8 on the side opposite to the battery group 11. The second housing 4 is fixed to the support member 8 by, for example, a bolt.

第二の筐体４と第一の筐体２は、第二の筐体４と第一の筐体２に比べて熱伝導率の低い材質から成る固定部材９を介して固定、接続されている。固定部材９は第二の筐体４および第一の筐体２を構成する材質に比べ、熱伝導率の低い材質、すなわち断熱材料であれば用いることができ、かつ可撓性を有する材質であることがより望ましい。例えば樹脂材料やゴム材料を用いることができる。固定部材９により、第二の筐体４を第一の筐体２に押圧することで固定部材９が第二の筐体４と第一の筐体２に密着し、防水性、防塵性を有する二次電池モジュール１とすることができる。また、固定部材９が断熱性を有するため、角形電池５が熱的に接触する第一の筐体２の二次電池モジュール外部に露出した部分（二次電池放熱部）と、電子部品６ａが熱的に接触する第二の筐体４のうち二次電池モジュール外部に露出した露出部４ａ（電子部品放熱部）とが熱的に遮断されるため、いずれか一方の温度が高い方から低い方への熱移動を防ぐことができる。 The second housing 4 and the first housing 2 are fixed and connected via a fixing member 9 made of a material having a lower thermal conductivity than the second housing 4 and the first housing 2. There is. The fixing member 9 is a material having a lower thermal conductivity than the materials constituting the second housing 4 and the first housing 2, that is, a heat insulating material that can be used and has flexibility. It is more desirable to have. For example, a resin material or a rubber material can be used. By pressing the second housing 4 against the first housing 2 by the fixing member 9, the fixing member 9 comes into close contact with the second housing 4 and the first housing 2, and is waterproof and dustproof. It can be the secondary battery module 1 to have. Further, since the fixing member 9 has a heat insulating property, the portion (secondary battery heat dissipation portion) exposed to the outside of the secondary battery module of the first housing 2 with which the square battery 5 is thermally contacted and the electronic component 6a are Of the second housing 4 that is in thermal contact, the exposed portion 4a (electronic component heat dissipation portion) exposed to the outside of the secondary battery module is thermally cut off, so that the temperature of either one is higher to lower. It is possible to prevent heat transfer to the direction.

上述した本実施の効果を以下まとめる。
（１）ＤＣ／ＤＣコンバータの温度上昇の抑制
ＤＣ／ＤＣコンバータ６を構成する基板６ａや電子部品６ｂから発生する熱は第二の筐体４に伝わり、第二の筐体４の露出部４ａから周囲空気へ放熱される。第二の筐体４が電子部品放熱部として作用するため、このように電子部品６ｂが熱的に接続した第二の筐体４の表面４ａから直接放熱でき、基板６ａおよび電子部品６ｂの温度上昇を効率的に抑制することができる。
（２）角形電池５の温度上昇の抑制
角型電池５で発生した熱は、第一の筐体２に伝わり、第一の筐体２の表面２ａから周囲空気へ放熱される。第一の筐体２が二次電池放熱部として作用し、角型電池５で発生した熱を二次電池モジュール１外部へ逃がすことができる。
（３）電子部品放熱部と二次電池放熱部との間の熱移動の抑制
第二の筐体４と第一の筐体２は熱伝導率の低い固定部材９を介して接触しているため、電子部品６ｂと熱的に接続される第二の筐体４と電池分１１と熱的に接続される第一の筐体２で熱の移動が起こりにくく、ＤＣ／ＤＣコンバータ６の発熱が角型電池５に伝わり、電池温度が上昇することを抑制することができる。 The effects of this implementation described above are summarized below.
(1) Suppression of temperature rise of DC / DC converter Heat generated from the substrate 6a and electronic components 6b constituting the DC / DC converter 6 is transferred to the second housing 4, and the exposed portion 4a of the second housing 4 is transferred. Is radiated to the ambient air. Since the second housing 4 acts as a heat radiating portion for electronic components, heat can be radiated directly from the surface 4a of the second housing 4 to which the electronic components 6b are thermally connected in this way, and the temperatures of the substrate 6a and the electronic components 6b can be dissipated. The rise can be suppressed efficiently.
(2) Suppression of temperature rise of the square battery 5 The heat generated by the square battery 5 is transferred to the first housing 2 and radiated from the surface 2a of the first housing 2 to the ambient air. The first housing 2 acts as a heat radiating unit for the secondary battery, and the heat generated by the square battery 5 can be released to the outside of the secondary battery module 1.
(3) Suppression of heat transfer between the heat dissipation part of the electronic component and the heat dissipation part of the secondary battery The second housing 4 and the first housing 2 are in contact with each other via a fixing member 9 having a low heat conductivity. Therefore, heat transfer is less likely to occur in the second housing 4 thermally connected to the electronic component 6b and the first housing 2 thermally connected to the battery component 11, and heat is generated by the DC / DC converter 6. Is transmitted to the square battery 5, and it is possible to suppress the rise in battery temperature.

一般的に、リチウムイオン二次電池とＤＣ／ＤＣコンバータとではＤＣ／ＤＣコンバータの方が熱の発生が大きいため、角形電池５に接してＤＣ／ＤＣコンバータ６を設けた場合や、第一の筐体２、第１の筐体４を介して熱的に角形電池５に接してＤＣ／ＤＣコンバータ６が接している場合、ＤＣ／ＤＣコンバータ６で発生した熱が角形電池５へ移動し、角形電池５の温度を上げる原因となる。ＤＣ／ＤＣコンバータ６と熱的に接触して熱を外部へ逃がす第二の筐体４と、角形電池５と熱的接触して熱を外部へ逃がす第一の筐体２を直接繋ぐのではなく、熱伝導率の低い固定材９を介して接触させることにより、二次電池モジュール１の防水、防塵性を保ちながら、ＤＣ／ＤＣコンバータ６から角型電池５へのの熱移動を防ぎ、それぞれの温度上昇を抑制することができる。これにより、電池性能の劣化を抑制しつつ、電子部品６ｂの過度な温度上昇を抑制することができるため、信頼性の高い二次電池モジュール１を供給することができる。 In general, the DC / DC converter generates more heat between the lithium ion secondary battery and the DC / DC converter. Therefore, when the DC / DC converter 6 is provided in contact with the square battery 5, or the first When the DC / DC converter 6 is thermally in contact with the square battery 5 via the housing 2 and the first housing 4, the heat generated by the DC / DC converter 6 is transferred to the square battery 5. It causes the temperature of the square battery 5 to rise. The second housing 4 that thermally contacts the DC / DC converter 6 to release heat to the outside and the first housing 2 that thermally contacts the square battery 5 to release heat to the outside may be directly connected. By contacting the secondary battery module 1 via a fixing material 9 having a low thermal conductivity, the heat transfer from the DC / DC converter 6 to the square battery 5 is prevented while maintaining the waterproof and dustproof properties of the secondary battery module 1. Each temperature rise can be suppressed. As a result, it is possible to suppress an excessive temperature rise of the electronic component 6b while suppressing deterioration of battery performance, so that a highly reliable secondary battery module 1 can be supplied.

また、第一の筐体２において、電池群１１が接触した面と、前記開口部１０が設けられた面が異なる面であることにより、距離を稼ぐことができるため、より熱の移動を防止することができる。好ましくは、図１，２のように第一の筐体２のそれぞれ対向した面に電池群１１が接触した面と、前記開口部１０が設けられることが好ましい。 Further, in the first housing 2, the surface in contact with the battery group 11 and the surface on which the opening 10 is provided are different surfaces, so that a distance can be increased, so that heat transfer is further prevented. can do. It is preferable that the surface of the first housing 2 in contact with the battery group 11 and the opening 10 are provided on the opposite surfaces of the first housing 2 as shown in FIGS. 1 and 2.

本実施例では、第一の筐体２に角型電池５を１２個積層させた電池群１１を２組配置した例を示したが、角型電池５の積層数および配置組数は限定されるものではない。 In this embodiment, an example is shown in which two sets of battery groups 11 in which 12 square batteries 5 are stacked are arranged in the first housing 2, but the number of stacked square batteries 5 and the number of arranged sets are limited. It's not something.

また、角型電池５およびＤＣ／ＤＣコンバータ６の温度上昇を抑制するため、たとえば第二の筐体４の表面４ａおよび第一の筐体２の露出している表面４ａにヒートシンクを固定することで、角型電池５およびＤＣ／ＤＣコンバータ６の温度上昇を効率的に抑制することができる。ただし、冷却構造はヒートシンクに限らず、ファンを取り付けた空冷構造、水冷構造を固定してもよい。 Further, in order to suppress the temperature rise of the square battery 5 and the DC / DC converter 6, for example, the heat sink is fixed to the surface 4a of the second housing 4 and the exposed surface 4a of the first housing 2. Therefore, the temperature rise of the square battery 5 and the DC / DC converter 6 can be efficiently suppressed. However, the cooling structure is not limited to the heat sink, and an air-cooled structure or a water-cooled structure to which a fan is attached may be fixed.

（実施例２）
本実施例は、ＤＣ／ＤＣコンバータ６を収納する第二の筐体表面４ａに表面積を拡大するフィン形状４ｂを設けた構造を用いた例である。フィン形状４ｂ以外の構造は実施例１と同様である。 (Example 2)
This embodiment is an example using a structure in which a fin shape 4b for expanding the surface area is provided on the surface 4a of the second housing for accommodating the DC / DC converter 6. The structure other than the fin shape 4b is the same as that of the first embodiment.

図３は、実施例２の二次電池モジュール１断面図である。 FIG. 3 is a cross-sectional view of the secondary battery module 1 of the second embodiment.

第二の筐体４は表面積を拡大するフィン形状部４ｂを有している。フィン形状部４ｂは、露出部４ａに設けられており、開口部１０から二次電池モジュール１外部に露出している。フィン形状部４ｂは、例えば複数の板状部が配列した形状を有しているが、他に表面積が高い公知のフィン形状を用いることもできる。フィン形状４ｂは第二の筐体４と一体で成形されることが望ましいが、フィン形状４ｂを別構造とし、第二の筐体４にボルト等で固定する構造としてもよい。また、第二の筐体４およびフィン形状４ｂは熱伝導率が高いことが望ましく、たとえばアルミや銅などの金属材料で形成するとよい。第二の筐体４は実施例１と同様に固定部材９を介して第一の筐体２の内壁面に押圧されている。 The second housing 4 has a fin-shaped portion 4b that increases the surface area. The fin-shaped portion 4b is provided in the exposed portion 4a and is exposed to the outside of the secondary battery module 1 from the opening 10. The fin-shaped portion 4b has, for example, a shape in which a plurality of plate-shaped portions are arranged, but a known fin shape having a high surface area can also be used. It is desirable that the fin shape 4b is integrally molded with the second housing 4, but the fin shape 4b may have a separate structure and may be fixed to the second housing 4 with a bolt or the like. Further, it is desirable that the second housing 4 and the fin shape 4b have high thermal conductivity, and it is preferable that the second housing 4 and the fin shape 4b are formed of a metal material such as aluminum or copper. The second housing 4 is pressed against the inner wall surface of the first housing 2 via the fixing member 9 as in the first embodiment.

上述した本実施の形態によれば、ＤＣ／ＤＣコンバータ６で発生する熱は第二の筐体４に伝わり、フィン形状４ｂから効率的に周囲空気に放熱される。 According to the above-described embodiment, the heat generated by the DC / DC converter 6 is transferred to the second housing 4, and is efficiently dissipated from the fin shape 4b to the ambient air.

（実施例３）
実施例３は、ＤＣ／ＤＣコンバータ６を形成する基板６ａを分割し、第一の回路１３を覆う第二の筐体４と第二の回路１４を覆う第三の筐体１２を設けた構造の例である。他の構造は実施例１と同様である。 (Example 3)
In the third embodiment, the substrate 6a forming the DC / DC converter 6 is divided, and a second housing 4 covering the first circuit 13 and a third housing 12 covering the second circuit 14 are provided. Is an example of. Other structures are the same as in Example 1.

図４は、実施例３の二次電池モジュール１断面図である。 FIG. 4 is a cross-sectional view of the secondary battery module 1 of the third embodiment.

ＤＣ／ＤＣコンバータ６は、温度上限が異なる第一の回路１３と第二の回路１４を有している。第一の回路１３と第二の回路１４はそれぞれ基板に設けられており、基板は第一の回路基板１３ａと第二の回路基板１４ａとに分かれて設けられている。耐熱性が低く、温度上限が低い回路としては、例えばキャパシタが設けられた回路が上げられる。また、これと比較して温度上限が高い回路としては、コイルや半導体素子が上げられる。したがって、例えば、第一の回路１３にコイルや半導体素子が設けられた回路、第二の回路１４にキャパシタが設けられた回路を用いることができる。 The DC / DC converter 6 has a first circuit 13 and a second circuit 14 having different temperature upper limits. The first circuit 13 and the second circuit 14 are provided on the substrate, respectively, and the substrate is separately provided on the first circuit board 13a and the second circuit board 14a. As a circuit having low heat resistance and a low temperature upper limit, for example, a circuit provided with a capacitor can be mentioned. Further, as a circuit having a higher temperature upper limit than this, a coil or a semiconductor element can be mentioned. Therefore, for example, a circuit in which a coil or a semiconductor element is provided in the first circuit 13 and a circuit in which a capacitor is provided in the second circuit 14 can be used.

第一の回路１３は、第二の筐体４により覆われ、第二の回路１４は、第三の筐体１２により覆われている。第一の回路１３、第三の回路１４は第一の筐体２に設けられた開口部からそれぞれ第二の筐体の露出部（露出部）４ａ、第三の筐体の露出部（第二の露出部）１２ａとして露出している。露出部４ａと露出部１２ａは、第一の筐体２と固定部材９により隔てられている。 The first circuit 13 is covered by the second housing 4, and the second circuit 14 is covered by the third housing 12. The first circuit 13 and the third circuit 14 have an exposed portion (exposed portion) 4a of the second housing and an exposed portion (third portion) of the third housing, respectively, from the openings provided in the first housing 2. Second exposed part) It is exposed as 12a. The exposed portion 4a and the exposed portion 12a are separated from the first housing 2 by the fixing member 9.

温度上限の高い素子を有する第一の回路１３と温度上限の低い素子を有する第二の回路１４を分離し、それぞれの回路を異なる筐体４、１２に収納し、固定部材９により隔てられることにより放熱経路を分離することで、一方から他方への熱移動を防ぐことができる。また、素子の温度上限に合わせた冷却構造を構築することができる。例えば温度上限の低い回路を覆う第二の筐体４は放熱面４ａの面積が大きくなるように構築し、温度上限の高い回路１４を覆う第三の筐体１２の表面１２ａは面積を小さく抑えることで、電子部品６ｂの温度上限に合わせた冷却構造を実現することができる。 The first circuit 13 having an element having a high temperature upper limit and the second circuit 14 having an element having a low temperature upper limit are separated, and each circuit is housed in different housings 4 and 12, and separated by a fixing member 9. By separating the heat dissipation path, it is possible to prevent heat transfer from one side to the other. Further, it is possible to construct a cooling structure according to the upper limit of the temperature of the element. For example, the second housing 4 that covers the circuit having a low temperature upper limit is constructed so that the area of the heat dissipation surface 4a is large, and the surface 12a of the third housing 12 that covers the circuit 14 having a high temperature upper limit keeps the area small. This makes it possible to realize a cooling structure that matches the temperature upper limit of the electronic component 6b.

（実施例４）
実施例４は、ＤＣ／ＤＣコンバータ６を形成する基板６ａを保持する支持部材８に凸部８ａを設け、第二の筐体４に接触させた構造の例である。他の構造は実施例１と同様である。 (Example 4)
The fourth embodiment is an example of a structure in which a convex portion 8a is provided on a support member 8 holding a substrate 6a forming a DC / DC converter 6 and is brought into contact with a second housing 4. Other structures are the same as in Example 1.

図５は、実施例４の二次電池モジュール１断面図である。 FIG. 5 is a cross-sectional view of the secondary battery module 1 of the fourth embodiment.

支持部材８は、凸部８ａを有しており、凸部８ａは第二の筐体４に接触されている。支持部材８および凸部８ａにより、第一の筐体２の内部空間が、電池群１１が配置される空間と、ＤＣ／ＤＣコンバータ６が配置される空間で分離されている。これにより、第一の筐体２内部の流体を介した電池群１１とＤＣ／ＤＣコンバータ６の熱干渉を抑制することができる。さらに、電池群１１のいずれかの角型電池５に異常が発生し、角型電池５に含まれていたガスや内部電解液が噴き出された場合に、ＤＣ／ＤＣコンバータ６は電池群１１とは異なる空間に配置されており、さらに第二の筐体４に収納されているため、電解液による基板６ａの汚染を防ぐことができる。 The support member 8 has a convex portion 8a, and the convex portion 8a is in contact with the second housing 4. The support member 8 and the convex portion 8a separate the internal space of the first housing 2 into a space in which the battery group 11 is arranged and a space in which the DC / DC converter 6 is arranged. As a result, it is possible to suppress thermal interference between the battery group 11 and the DC / DC converter 6 via the fluid inside the first housing 2. Further, when an abnormality occurs in any of the square batteries 5 of the battery group 11 and the gas or the internal electrolytic solution contained in the square battery 5 is ejected, the DC / DC converter 6 causes the battery group 11 to operate. Since it is arranged in a space different from that of the above and further housed in the second housing 4, it is possible to prevent the substrate 6a from being contaminated by the electrolytic solution.

本実施例では、支持部材８に凸部８ａを設けることで第一の筐体２の内部空間を分離したが、凸部８ａは支持部材８と一体構造ではなくともよく、支持部材８と第一の筐体２および筐体蓋３の隙間と略同一形状の別部材を固定し、第一の筐体２と筐体蓋３と密着させてもよい。 In this embodiment, the internal space of the first housing 2 is separated by providing the support member 8 with the convex portion 8a, but the convex portion 8a does not have to have an integral structure with the support member 8, and the support member 8 and the first Another member having substantially the same shape as the gap between the housing 2 and the housing lid 3 may be fixed and brought into close contact with the first housing 2 and the housing lid 3.

（実施例５）
実施例５は、ＤＣ／ＤＣコンバータ６を形成する基板６ａを第二の筐体４に固定し、第二の筐体４を第一の筐体２固定する構造の例である。明記しない他の構造は実施例１と同様である。 (Example 5)
The fifth embodiment is an example of a structure in which the substrate 6a forming the DC / DC converter 6 is fixed to the second housing 4, and the second housing 4 is fixed to the first housing 2. Other structures not specified are the same as in Example 1.

図６は、実施例５の二次電池モジュール１断面図である。 FIG. 6 is a cross-sectional view of the secondary battery module 1 of the fifth embodiment.

ＤＣ／ＤＣコンバータ６は、第二の筐体４に固定しされ収納されている。第二の筐体４には、実施例１と同様に、第一の筐体に設けられた開口部１０から露出する露出部４ａを有する。第二の筐体４は露出部４ａの反対側の面に第一の筐体底部１５を有しており、ＤＣ／ＤＣコンバータ６を形成する基板６ａは、筐体底部１５に設けられている。 The DC / DC converter 6 is fixed and housed in the second housing 4. Similar to the first embodiment, the second housing 4 has an exposed portion 4a exposed from the opening 10 provided in the first housing. The second housing 4 has a first housing bottom 15 on the surface opposite to the exposed portion 4a, and the substrate 6a forming the DC / DC converter 6 is provided on the housing bottom 15. ..

ＤＣ／ＤＣコンバータ６に搭載される電子部品６ａは、第二の筐体４の露出部４ａ側に接触されている。また、第二の筐体４と第一の筐体２の接触面には、固定部材９を設けられ、ボルトによって第二の筐体４を第一の筐体２に固定し、保持する構造となっている。 The electronic component 6a mounted on the DC / DC converter 6 is in contact with the exposed portion 4a side of the second housing 4. Further, a fixing member 9 is provided on the contact surface between the second housing 4 and the first housing 2, and the second housing 4 is fixed to and held in the first housing 2 by bolts. It has become.

上述した本実施の形態によれば、ＤＣ／ＤＣコンバータ６で発生する熱は、第二の筐体４に伝わり、表面４ａから放熱される。この構造では、ＤＣ／ＤＣコンバータ６を第一の筐体２によって保持するため、支持部材８はＤＣ／ＤＣコンバータ６を支持する必要がなく、それ以外の電気部品を保持するように小型化することができ、二次電池モジュール１の体積増大を抑制することができる。 According to the present embodiment described above, the heat generated by the DC / DC converter 6 is transferred to the second housing 4 and dissipated from the surface 4a. In this structure, since the DC / DC converter 6 is held by the first housing 2, the support member 8 does not need to support the DC / DC converter 6 and is miniaturized so as to hold other electrical components. This makes it possible to suppress an increase in the volume of the secondary battery module 1.

（実施例６）
実施例６は、電池群１１を収納する第一の筐体２において、筐体蓋３に対向する面である筐体底面２ａに開口部１０を設け、ＤＣ／ＤＣコンバータ６を収納する第二の筐体４を第一の筐体２の底面側に露出させる構造の例である。 (Example 6)
In the sixth embodiment, in the first housing 2 for accommodating the battery group 11, an opening 10 is provided in the housing bottom surface 2a which is a surface facing the housing lid 3, and the DC / DC converter 6 is housed. This is an example of a structure in which the housing 4 of the above is exposed on the bottom surface side of the first housing 2.

図７は、実施例６の二次電池モジュール１断面図である。 FIG. 7 is a cross-sectional view of the secondary battery module 1 of the sixth embodiment.

ＤＣ／ＤＣコンバータ６は、第二の筐体４に固定しされ収納されている。第二の筐体４には、実施例１と同様に、第一の筐体に設けられた開口部１０から露出する露出部４ａを有する。第二の筐体４は、実施例６と同様に露出部４ａの反対側の面に第一の筐体底部１５を有しており、ＤＣ／ＤＣコンバータ６を形成する基板６ａは、筐体底部１５に設けられている。 The DC / DC converter 6 is fixed and housed in the second housing 4. Similar to the first embodiment, the second housing 4 has an exposed portion 4a exposed from the opening 10 provided in the first housing. The second housing 4 has the first housing bottom portion 15 on the surface opposite to the exposed portion 4a as in the sixth embodiment, and the substrate 6a forming the DC / DC converter 6 is a housing. It is provided on the bottom 15.

開口部１０は、第一の筐体２において筐体蓋３の反対側の面である第一の筐体底面２ａ側に設けられている。また、第一の筐体２において、角形電池５が接触する面も同様に第一の筐体底面２ａであり、開口部１０が設けられた面と角形電池５が接触する面は、第一の筐体２において、同一の面に設けられている。第二の筐体４の露出部４ａは、第一の筐体２の底面２ａと略同一高さとなるように設けられおり、第一の筐体底面２ａと第二の筐体４の露出部４ａは固定部材９により熱的に隔てられている。 The opening 10 is provided on the side of the first housing bottom surface 2a, which is the opposite surface of the housing lid 3 in the first housing 2. Further, in the first housing 2, the surface that the square battery 5 contacts is also the first housing bottom surface 2a, and the surface provided with the opening 10 and the surface that the square battery 5 contacts are the first. In the housing 2, the housing 2 is provided on the same surface. The exposed portion 4a of the second housing 4 is provided so as to be substantially the same height as the bottom surface 2a of the first housing 2, and the exposed portion of the first housing bottom surface 2a and the second housing 4 is provided. 4a is thermally separated by a fixing member 9.

上述した本実施の形態によれば、電池群１１の放熱経路である第一の筐体２における電池群１１の放熱経路とＤＣ／ＤＣコンバータ６の放熱経路である第二の筐体４の表面４ａが同一面に形成されることで、角型電池５とＤＣ／ＤＣコンバータ６の第一の筐体２による熱干渉を抑制しつつ、一つの冷却構造により、第二の筐体４と第一の筐体２を冷却でき、角型電池５とＤＣ／ＤＣコンバータ６の温度上昇を抑制することができる。 According to the above-described embodiment, the heat dissipation path of the battery group 11 in the first housing 2 which is the heat dissipation path of the battery group 11 and the surface of the second housing 4 which is the heat dissipation path of the DC / DC converter 6. By forming 4a on the same surface, thermal interference between the square battery 5 and the first housing 2 of the DC / DC converter 6 is suppressed, and the one cooling structure makes it possible to use the second housing 4 and the second housing 4. One housing 2 can be cooled, and the temperature rise of the square battery 5 and the DC / DC converter 6 can be suppressed.

冷却構造としては、たとえば水冷ジャケットを電池モジュール１の底面に配置することで、複数の角型電池５とＤＣ／ＤＣコンバータ６を冷却することができる。ただし、冷却構造は水冷に限らず、通風路やフィン構造により冷却する構造としてもよい。 As a cooling structure, for example, by arranging a water cooling jacket on the bottom surface of the battery module 1, a plurality of square batteries 5 and a DC / DC converter 6 can be cooled. However, the cooling structure is not limited to water cooling, and may be a structure that cools by a ventilation passage or a fin structure.

１…二次電池モジュール、２…第一の筐体（筐体）、２ａ…第一の筐体底面、３…筐体蓋、４…第二の筐体、４ａ…第二の筐体の露出部（露出部）、４ｂ…フィン形状、５…角型電池（二次電池）、６…ＤＣ／ＤＣコンバータ、６ａ…基板、６ｂ…電子部品、７…固縛部材、８…支持部材、８ａ…支持部材凸部、９…固定部材、１０…開口部、１１…電池群、１２…第三の筐体、１２ａ…第三の筐体の露出部（第二の露出部）、１３…第一の回路、１３ａ…第一の回路基板、１３ｂ…電子部品、１４…第二の回路、１４ａ…第二の回路基板、１４ｂ…電子部品、１５…第一の筐体底部 1 ... Secondary battery module, 2 ... First housing (housing), 2a ... First housing bottom surface, 3 ... Housing lid, 4 ... Second housing, 4a ... Second housing Exposed part (exposed part), 4b ... Fin shape, 5 ... Square battery (secondary battery), 6 ... DC / DC converter, 6a ... Board, 6b ... Electronic component, 7 ... Fastening member, 8 ... Support member, 8a ... Support member convex portion, 9 ... Fixing member, 10 ... Opening, 11 ... Battery group, 12 ... Third housing, 12a ... Exposed portion of the third housing (second exposed portion), 13 ... First circuit, 13a ... first circuit board, 13b ... electronic component, 14 ... second circuit, 14a ... second circuit board, 14b ... electronic component, 15 ... first housing bottom

Claims (12)

二次電池と、
基板と、前記基板上に設けられた電子部品と、
前記二次電池、前記基板および前記電子部品を収容する筐体を有する二次電池モジュールにおいて、
前記二次電池モジュールは、前記二次電池と熱的に接触して、前記二次電池モジュールの外部に露出した二次電池放熱部と、前記電子部品と熱的に接触して前記二次電池モジュールの外部に露出した電子部品放熱部を有し、
前記二次電池放熱部と、電子部品放熱部とは前記二次電池放熱部および前記電子部品放熱部よりも熱伝導率の低い固定部材により隔てられ、
前記二次電池は、前記二次電池と熱的に接触しており、
前記二次電池モジュールは、前記電子部品と接触して前記電子部品を収容する第二の筐体を有し、
前記二次電池放熱部は、前記筐体のうち前記二次電池モジュール外部に露出した部分であり、
前記電子部品放熱部は、前記第二の筐体のうち前記二次電池モジュール外部に露出した部分であり、
前記第二の筐体は前記筐体に収容され、
前記筐体は開口部を有し、
前記第二の筐体は前記開口部から前記二次電池モジュールの外部に露出した露出部を有し、前記露出部が前記電子部品放熱部である二次電池モジュール。 With a secondary battery,
The substrate, the electronic components provided on the substrate, and
In a secondary battery module having a housing for accommodating the secondary battery, the substrate, and the electronic components.
The secondary battery module is in thermal contact with the secondary battery, and is in thermal contact with the secondary battery heat dissipation portion exposed to the outside of the secondary battery module and the electronic component. It has an electronic component heat dissipation part exposed to the outside of the module.
The secondary battery heat dissipation part and the electronic component heat dissipation part are separated by a fixing member having a lower thermal conductivity than the secondary battery heat dissipation part and the electronic component heat dissipation part.
The secondary battery is in thermal contact with the secondary battery and is in contact with the secondary battery.
The secondary battery module has a second housing that comes into contact with the electronic component and houses the electronic component.
The secondary battery heat dissipation portion is a portion of the housing exposed to the outside of the secondary battery module.
The electronic component heat dissipation portion is a portion of the second housing exposed to the outside of the secondary battery module.
The second housing is housed in the housing and
The housing has an opening and
The second housing has an exposed portion exposed from the opening to the outside of the secondary battery module, and the exposed portion is a secondary battery module in which the electronic component heat dissipation portion . 請求項１において、
前記電子部品は、半導体または、コイル、キャパシタ、のいずれかである二次電池モジュール。 In claim 1 ,
The electronic component is a secondary battery module which is either a semiconductor or a coil or a capacitor. 請求項２において、
前記電子部品は、ＤＣ／ＤＣコンバータを形成する部品である二次電池モジュール。 In claim 2 ,
The electronic component is a secondary battery module which is a component forming a DC / DC converter. 請求項３において、
前記筐体の内部には、前記基板が設けられた支持部材が設けられた二次電池モジュール。 In claim 3 ,
A secondary battery module provided with a support member provided with the substrate inside the housing. 請求項４において、
前記支持部材は、前記二次電池とＤＣ／ＤＣコンバータとの間に位置し、前記筐体と接続された二次電池モジュール。 In claim 4 ,
The support member is a secondary battery module located between the secondary battery and a DC / DC converter and connected to the housing. 請求項５において、
前記筐体内には前記二次電池が設けられた空間と、前記ＤＣ／ＤＣコンバータが設けられた空間があり、前記二次電池が設けられた空間と、前記ＤＣ／ＤＣコンバータが設けられた空間は、前記支持部材により分離されている二次電池モジュール。 In claim 5 ,
In the housing, there is a space provided with the secondary battery and a space provided with the DC / DC converter, a space provided with the secondary battery, and a space provided with the DC / DC converter. Is a secondary battery module separated by the support member. 請求項５または請求項６において、
前記二次電池が熱的に接続される前記筐体の面と、前記開口部が設けられた面は異なる面である二次電池モジュール。 In claim 5 or 6 ,
A secondary battery module in which the surface of the housing to which the secondary battery is thermally connected and the surface provided with the opening are different surfaces. 請求項７において、
前記固定部材は、樹脂材料、ゴム材料の少なくともいずれかである二次電池モジュール。 In claim 7 ,
The fixing member is a secondary battery module which is at least one of a resin material and a rubber material. 請求項８において、
前記支持部材の前記二次電池側の面には、前記二次電池を制御する回路が設けられた二次電池モジュール。 In claim 8 ,
A secondary battery module provided with a circuit for controlling the secondary battery on the surface of the support member on the secondary battery side. 請求項９において、
前記露出部は、前記二次電池モジュール外部側にフィン形状を有する二次電池モジュール。 In claim 9 .
The exposed portion is a secondary battery module having a fin shape on the outer side of the secondary battery module. 二次電池と、
基板と、前記基板上に設けられた電子部品と、
前記二次電池、前記基板および前記電子部品を収容する筐体を有する二次電池モジュールにおいて、
前記二次電池モジュールは、前記二次電池と熱的に接触して、前記二次電池モジュールの外部に露出した二次電池放熱部と、前記電子部品と熱的に接触して前記二次電池モジュールの外部に露出した電子部品放熱部を有し、
前記二次電池放熱部と、電子部品放熱部とは前記二次電池放熱部および前記電子部品放熱部よりも熱伝導率の低い固定部材により隔てられ、
前記二次電池は、前記二次電池と熱的に接触しており、
前記二次電池モジュールは、前記電子部品と接触して前記電子部品を収容する第二の筐体を有し、
前記二次電池放熱部は、前記筐体のうち前記二次電池モジュール外部に露出した部分であり、
前記電子部品放熱部は、前記第二の筐体のうち前記二次電池モジュール外部に露出した部分であり、
前記第二の筐体の露出部は、前記第二の筐体を収納する第一の筐体の底面と略同一高さとなるように設けられている二次電池モジュール。 With a secondary battery,
The substrate, the electronic components provided on the substrate, and
In a secondary battery module having a housing for accommodating the secondary battery, the substrate, and the electronic components.
The secondary battery module is in thermal contact with the secondary battery, and is in thermal contact with the secondary battery heat dissipation portion exposed to the outside of the secondary battery module and the electronic component. It has an electronic component heat dissipation part exposed to the outside of the module.
The secondary battery heat dissipation part and the electronic component heat dissipation part are separated by a fixing member having a lower thermal conductivity than the secondary battery heat dissipation part and the electronic component heat dissipation part.
The secondary battery is in thermal contact with the secondary battery and is in contact with the secondary battery.
The secondary battery module has a second housing that comes into contact with the electronic component and houses the electronic component.
The secondary battery heat dissipation portion is a portion of the housing exposed to the outside of the secondary battery module.
The electronic component heat dissipation portion is a portion of the second housing exposed to the outside of the secondary battery module.
The exposed portion of the second housing is a secondary battery module provided so as to have substantially the same height as the bottom surface of the first housing for accommodating the second housing . 二次電池と、
基板と、前記基板上に設けられた電子部品と、
前記二次電池、前記基板および前記電子部品を収容する筐体を有する二次電池モジュールにおいて、
前記二次電池モジュールは、前記二次電池と熱的に接触して、前記二次電池モジュールの外部に露出した二次電池放熱部と、前記電子部品と熱的に接触して前記二次電池モジュールの外部に露出した電子部品放熱部を有し、
前記二次電池放熱部と、電子部品放熱部とは前記二次電池放熱部および前記電子部品放熱部よりも熱伝導率の低い固定部材により隔てられ、
前記二次電池は、前記二次電池と熱的に接触しており、
前記二次電池モジュールは、前記電子部品と接触して前記電子部品を収容する第二の筐体を有し、
前記二次電池放熱部は、前記筐体のうち前記二次電池モジュール外部に露出した部分であり、
前記電子部品放熱部は、前記第二の筐体のうち前記二次電池モジュール外部に露出した部分であり、
前記第二の筐体の表面および前記第二の筐体を収納する第一の筐体の露出している表面に冷却構造を固定した二次電池モジュール。 With a secondary battery,
The substrate, the electronic components provided on the substrate, and
In a secondary battery module having a housing for accommodating the secondary battery, the substrate, and the electronic components.
The secondary battery module is in thermal contact with the secondary battery, and is in thermal contact with the secondary battery heat dissipation portion exposed to the outside of the secondary battery module and the electronic component. It has an electronic component heat dissipation part exposed to the outside of the module.
The secondary battery heat dissipation part and the electronic component heat dissipation part are separated by a fixing member having a lower thermal conductivity than the secondary battery heat dissipation part and the electronic component heat dissipation part.
The secondary battery is in thermal contact with the secondary battery and is in contact with the secondary battery.
The secondary battery module has a second housing that comes into contact with the electronic component and houses the electronic component.
The secondary battery heat dissipation portion is a portion of the housing exposed to the outside of the secondary battery module.
The electronic component heat dissipation portion is a portion of the second housing exposed to the outside of the secondary battery module.
A secondary battery module in which a cooling structure is fixed to the surface of the second housing and the exposed surface of the first housing for accommodating the second housing .
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014068922A1 (en) 2012-10-29 2014-05-08 三洋電機株式会社 Vehicle-mounted power supply device and vehicle comprising power supply device
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014068922A1 (en) 2012-10-29 2014-05-08 三洋電機株式会社 Vehicle-mounted power supply device and vehicle comprising power supply device
JP2018190607A (en) 2017-05-08 2018-11-29 株式会社デンソー Battery pack
JP2019016564A (en) 2017-07-10 2019-01-31 トヨタ自動車株式会社 Power supply device

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