JP2018037157A - Battery pack for vehicle - Google Patents

Battery pack for vehicle Download PDF

Info

Publication number
JP2018037157A
JP2018037157A JP2016166961A JP2016166961A JP2018037157A JP 2018037157 A JP2018037157 A JP 2018037157A JP 2016166961 A JP2016166961 A JP 2016166961A JP 2016166961 A JP2016166961 A JP 2016166961A JP 2018037157 A JP2018037157 A JP 2018037157A
Authority
JP
Japan
Prior art keywords
battery pack
heat
housing
battery
vertical direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2016166961A
Other languages
Japanese (ja)
Other versions
JP6929623B2 (en
Inventor
荘田　隆博
Takahiro Shoda
隆博 荘田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yazaki Corp
Original Assignee
Yazaki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yazaki Corp filed Critical Yazaki Corp
Priority to JP2016166961A priority Critical patent/JP6929623B2/en
Publication of JP2018037157A publication Critical patent/JP2018037157A/en
Application granted granted Critical
Publication of JP6929623B2 publication Critical patent/JP6929623B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Landscapes

  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a battery pack for a vehicle capable of uniformly cooling a plurality of batteries housed in the battery pack.SOLUTION: A battery pack 1 for a vehicle includes: a heat conductive member 4 which is arranged along the arrangement direction of a plurality of batteries 3 and comes into contact with an outer surface 3a of at least each battery 3; and a liquidity member 5 which has thermal conductivity and heat storage properties and is stored an inner bottom surface 2b of a housing 2. Out of the heat conductive member 4, a portion extended from a contact part 4a in contact with the outer surface 3a of each battery 3 toward the vertical direction is immersed in the liquidity member 5.SELECTED DRAWING: Figure 2

Description

本発明は、車両用電池パックに関する。   The present invention relates to a vehicle battery pack.

電気車両（ＥＶ）、ハイブリッド車両（ＨＥＶ）、プラグインハイブリッド車両（ＰＨＥＶ）などの車両は、駆動源であるモータを駆動する電力を供給する電源として、例えば電池パックが搭載されている。電池パックは、複数個の電池（二次電池）が収容されており、各電池が直列および／または並列に電気的に接続されている。各電池は、充放電の際に温度が変化し、車両の走行時間や走行状態に応じて温度が上昇するため、使用可能温度が定められている。従って、各電池に短時間で重い負荷がかかることで使用可能温度を超えた場合には充放電制限を設けることとなるため、使用可能温度を超えることを抑制することを目的として冷却機能を電池パックに持たせる場合がある（例えば、特許文献１〜３参照）。   Vehicles such as an electric vehicle (EV), a hybrid vehicle (HEV), and a plug-in hybrid vehicle (PHEV) are mounted with, for example, a battery pack as a power source that supplies electric power for driving a motor that is a drive source. The battery pack contains a plurality of batteries (secondary batteries), and each battery is electrically connected in series and / or in parallel. The temperature of each battery changes during charging and discharging, and the temperature rises according to the running time and running state of the vehicle. Therefore, if a heavy load is applied to each battery for a short time and the usable temperature is exceeded, a charge / discharge limit is provided. Therefore, the cooling function is provided for the purpose of suppressing exceeding the usable temperature. In some cases, the pack is provided (see, for example, Patent Documents 1 to 3).

特開２００６−１２４７１号公報JP 2006-12471 A 特開２００６−２１０３５９号公報JP 2006-210359 A 特開２００６−１９６４７１号公報JP 2006-196471 A

上記従来の電池パックでは、筐体に収容された複数の電池の配置位置の違いにより冷却効果に差ができ、各電池間で劣化の進み具合に違いが生じて、劣化が進んだ電池の存在により電池パック全体の性能が低下するという問題がある。   In the above conventional battery pack, there is a difference in the cooling effect due to the difference in the arrangement position of the plurality of batteries housed in the casing, and there is a difference in the progress of deterioration between the batteries, and there is a battery that has deteriorated. Therefore, there is a problem that the performance of the entire battery pack is deteriorated.

本発明は、電池パックに収容される複数個の電池を均一に冷却することができる車両用電池パックを提供することを目的とする。   An object of this invention is to provide the battery pack for vehicles which can cool the some battery accommodated in a battery pack uniformly.

上記目的を達成するために、本発明に係る車両用電池パックは、熱伝導性を有する筐体と、前記筐体の内部空間において鉛直方向と直交する幅方向に配列される複数個の電池と、前記複数個の電池の配列方向に沿って配置され、少なくとも各前記電池の外側面に接触する熱伝導部材と、熱伝導性および蓄熱性を有し、前記複数個の電池と鉛直方向に対向する前記筐体の内部底面に貯留する流動性部材とを備え、前記熱伝導部材は、各前記電池の外側面と接触する接触部から前記鉛直方向に向かって延設された延設部が前記流動性部材に浸かることを特徴とする。   In order to achieve the above object, a vehicle battery pack according to the present invention includes a case having thermal conductivity, and a plurality of batteries arranged in a width direction perpendicular to the vertical direction in the internal space of the case. A heat conduction member disposed along the arrangement direction of the plurality of batteries and in contact with at least the outer surface of each of the batteries, and having heat conductivity and heat storage, and facing the plurality of batteries in the vertical direction. A fluid member stored on the inner bottom surface of the casing, and the heat conducting member has an extending portion extending in the vertical direction from a contact portion that contacts an outer surface of each battery. It is characterized by being immersed in a fluid member.

また、上記車両用電池パックにおいて、前記流動性部材は、潜熱蓄熱材または顕熱蓄熱材の少なくとも一方が含まれることが好ましい。   In the above vehicle battery pack, the fluid member preferably includes at least one of a latent heat storage material and a sensible heat storage material.

また、上記車両用電池パックにおいて、前記筐体は、前記内部底面から鉛直方向に立設される少なくとも１つの間仕切り壁を有し、前記間仕切り壁は、鉛直方向から見た場合に、隣り合う前記延設部の間に配置されることが好ましい。   Further, in the above vehicle battery pack, the casing has at least one partition wall standing vertically from the inner bottom surface, and the partition walls are adjacent to each other when viewed from the vertical direction. It is preferable to arrange between the extended portions.

また、上記車両用電池パックにおいて、前記熱伝導部材は、前記延設部が前記筐体の内部底面と接触することが好ましい。   Moreover, the said battery pack for vehicles WHEREIN: As for the said heat conductive member, it is preferable that the said extension part contacts the internal bottom face of the said housing | casing.

上記目的を達成するために、本発明に係る車両用電池パックは、熱伝導性を有する筐体と、前記筐体の内部空間において鉛直方向と直交する幅方向に配列される複数個の電池と、前記複数個の電池の配列方向に沿って配置され、少なくとも各前記電池の外側面に接触する熱伝導部材とを備え、前記熱伝導部材は、各前記電池の外側面と接触する接触部から前記鉛直方向に向かって延設された延設部が前記筐体の内部底面と接触することを特徴とする。   In order to achieve the above object, a vehicle battery pack according to the present invention includes a case having thermal conductivity, and a plurality of batteries arranged in a width direction perpendicular to the vertical direction in the internal space of the case. A heat conductive member disposed along the arrangement direction of the plurality of batteries and in contact with at least the outer surface of each battery, the heat conductive member from a contact portion in contact with the outer surface of each battery The extending portion extending in the vertical direction is in contact with the inner bottom surface of the casing.

本発明に係る車両用電池パックは、複数個の電池の配列方向に沿って配置され、少なくとも各電池の外側面に接触する熱伝導部材と、熱伝導性および蓄熱性を有し、複数個の電池と鉛直方向に対向する筐体の内部底面に貯留する流動性部材とを備え、熱伝導部材が、各電池の外側面と接触する接触部から鉛直方向に向かって延設された延設部が流動性部材に浸かる。これにより、車両用電池パックは、各電池で生じた熱を、各電池との接触部から鉛直方向に向かって延設された熱伝導部材を介して、複数個の電池と鉛直方向に対向する筐体の内部底面に貯留する流動性部材に伝熱することができ、電池パックに収容される複数個の電池を均一に冷却することができるという効果を奏する。   The vehicle battery pack according to the present invention is disposed along the arrangement direction of a plurality of batteries, has a heat conductive member that contacts at least the outer surface of each battery, and has a plurality of heat conductivity and heat storage properties. A fluid member that is stored on the inner bottom surface of the casing facing the battery in the vertical direction, and the heat conductive member extends in the vertical direction from a contact portion that contacts the outer surface of each battery. Is immersed in the fluid member. Thereby, the battery pack for vehicles opposes the plurality of batteries in the vertical direction through the heat conduction member extending in the vertical direction from the contact portion with each battery. Heat can be transferred to the fluid member stored on the inner bottom surface of the housing, and the plurality of batteries accommodated in the battery pack can be uniformly cooled.

図１は、実施形態１に係る車両用電池パックの概略構成を示す平面図である。FIG. 1 is a plan view showing a schematic configuration of a vehicle battery pack according to Embodiment 1. FIG. 図２は、図１中のＡ−Ａ´断面図である。FIG. 2 is a cross-sectional view taken along the line AA ′ in FIG. 図３は、実施形態２に係る車両用電池パックの概略構成を示す縦断面図である。FIG. 3 is a longitudinal sectional view showing a schematic configuration of the vehicle battery pack according to the second embodiment. 図４は、実施形態３に係る車両用電池パックの概略構成を示す平面図である。FIG. 4 is a plan view illustrating a schematic configuration of the vehicle battery pack according to the third embodiment. 図５は、図４中のＢ−Ｂ´断面図である。FIG. 5 is a cross-sectional view taken along the line BB ′ in FIG. 図６は、実施形態４に係る車両用電池パックの概略構成を示す縦断面図である。FIG. 6 is a longitudinal sectional view showing a schematic configuration of the vehicle battery pack according to the fourth embodiment.

以下に、本発明に係る車両用電池パックの実施形態を図面に基づいて詳細に説明する。なお、下記実施形態により本発明が限定されるものではない。また、下記実施形態における構成要素には、いわゆる当業者が置換可能かつ容易なもの、あるいは実質的に同一のものが含まれる。また、下記の実施形態における構成要素は、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。   Embodiments of a vehicle battery pack according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by the following embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same. The constituent elements in the following embodiments can be variously omitted, replaced, and changed without departing from the gist of the invention.

［実施形態１］
実施形態１に係る車両用電池パックについて説明する。図１は、実施形態１に係る車両用電池パックの概略構成を示す平面図である。図２は、図１中のＡ−Ａ´断面図である。なお、図１は、筐体の図示しない蓋を取り外して、内部を外部に露出させた状態を示す図である。ここで、以下の説明において、図示のＸ方向は、本実施形態における電池パックの幅方向である。Ｙ方向は、本実施形態における電池パックの奥行き方向であり、幅方向と直交する方向である。Ｚ方向は、本実施形態における電池パックの鉛直方向であり、幅方向および奥行き方向と直交する方向である。 [Embodiment 1]
The vehicle battery pack according to Embodiment 1 will be described. FIG. 1 is a plan view showing a schematic configuration of a vehicle battery pack according to Embodiment 1. FIG. FIG. 2 is a cross-sectional view taken along the line AA ′ in FIG. FIG. 1 is a view showing a state in which a cover (not shown) of the housing is removed and the inside is exposed to the outside. Here, in the following description, the illustrated X direction is the width direction of the battery pack in the present embodiment. The Y direction is the depth direction of the battery pack in the present embodiment, and is the direction orthogonal to the width direction. The Z direction is a vertical direction of the battery pack in the present embodiment, and is a direction orthogonal to the width direction and the depth direction.

本実施形態に係る車両用電池パック１は、図示しない車両、特に、電気車両（ＥＶ）、ハイブリッド車両（ＨＥＶ）、プラグインハイブリッド車両（ＰＨＥＶ）などの、駆動源としてモータを用いる車両に搭載され、駆動源に電力を供給する電源となるものである。車両用電池パック１は、図１および図２に示すように、筐体２と、複数個の電池３と、熱伝導部材４と、流動性部材５とを含んで構成される。   The vehicle battery pack 1 according to the present embodiment is mounted on a vehicle (not shown), in particular, a vehicle that uses a motor as a drive source, such as an electric vehicle (EV), a hybrid vehicle (HEV), and a plug-in hybrid vehicle (PHEV). The power source supplies power to the drive source. As shown in FIGS. 1 and 2, the vehicle battery pack 1 includes a housing 2, a plurality of batteries 3, a heat conducting member 4, and a fluid member 5.

筐体２は、複数個の電池３、熱伝導部材４および流動性部材５を収容するものである。筐体２は、筐体２の外表面が車両外から取り込まれた外気などの外部の熱媒体と接触可能な場所に設けられている。本実施形態における筐体２は、内部空間２ａを有する箱状に形成されている。筐体２は、熱伝導性を有するものであり、例えば、鉄、銅、アルミニウムなどにより構成されている。なお、筐体２は、図示しない蓋により内部空間２ａが閉塞される。なお、車両用電池パック１に防水性が要求される場合は、筐体２と蓋との間に防水構造が形成され、内部空間２ａが密閉される。   The housing 2 accommodates a plurality of batteries 3, a heat conducting member 4, and a fluid member 5. The housing 2 is provided at a location where the outer surface of the housing 2 can come into contact with an external heat medium such as outside air taken from outside the vehicle. The housing 2 in the present embodiment is formed in a box shape having an internal space 2a. The housing | casing 2 has thermal conductivity, for example, is comprised with iron, copper, aluminum, etc. The housing 2 has an internal space 2a closed by a lid (not shown). When the vehicle battery pack 1 is required to be waterproof, a waterproof structure is formed between the housing 2 and the lid, and the internal space 2a is sealed.

複数個の電池３は、それぞれが充放電可能な二次電池であり、筐体２の内部空間２ａに配列され、筐体２に保持される。本実施形態における複数個の電池３は、それぞれが鉛直方向（Ｚ方向）に延びる円筒型のリチウムイオン電池で構成され、図１に示すように、筐体２の内部空間２ａにおいて幅方向（Ｘ方向）（または奥行き方向（Ｙ方向））に千鳥格子状に配列されている。   Each of the plurality of batteries 3 is a secondary battery that can be charged and discharged, and is arranged in the internal space 2 a of the housing 2 and held in the housing 2. The plurality of batteries 3 in the present embodiment are configured by cylindrical lithium ion batteries each extending in the vertical direction (Z direction). As shown in FIG. 1, the width direction (X Direction) (or depth direction (Y direction)).

熱伝導部材４は、熱伝導性を有する熱伝導材料で構成される。熱伝導材料としては、例えばグラファイト、熱伝導性フィラーを含有する樹脂、銅やアルミニウムなどの金属がある。本実施形態における熱伝導部材４は、シート状のグラファイトで構成される。熱伝導部材４は、複数個の電池３の配列方向に沿って配置され、複数個の電池３の各外側面３ａに接触して各電池３と熱的に接続される。ここで、熱伝導部材４が各電池３と熱的に接続されるとは、各電池３と接触することで熱伝導部材４と各電池３との間で熱の授受が可能な場合、絶縁体等を介して熱伝導部材４と各電池３との間で熱の授受が可能な場合が含まれる。熱伝導部材４は、図１に示すように、鉛直方向から見た場合に、幅方向（Ｘ方向）に配列される各電池３の外側面３ａに沿って波状に形成され、奥行き方向（Ｙ方向）に電池３が隣り合う場合には、隣り合う電池３に挟まれて形成される。熱伝導部材４は、図２に示すように、電池３の外側面３ａと接触する接触部４ａと、当該接触部４ａから鉛直方向に向かって延設された延設部４ｂとを有し、当該延設部４ｂが流動性部材５に浸かり、流動性部材５と熱的に接続される。ここで、熱伝導部材４が流動性部材５と熱的に接続されるとは、延設部４ｂが流動性部材５に浸かることで熱伝導部材４と流動性部材５との間で熱の授受が可能な場合である。   The heat conducting member 4 is made of a heat conducting material having heat conductivity. Examples of the heat conductive material include graphite, a resin containing a heat conductive filler, and a metal such as copper and aluminum. The heat conductive member 4 in this embodiment is comprised with a sheet-like graphite. The heat conducting member 4 is disposed along the arrangement direction of the plurality of batteries 3, contacts the outer side surface 3 a of the plurality of batteries 3, and is thermally connected to each battery 3. Here, the heat conduction member 4 is thermally connected to each battery 3 when it is possible to transfer heat between the heat conduction member 4 and each battery 3 by contacting each battery 3. A case where heat can be exchanged between the heat conducting member 4 and each battery 3 through a body or the like is included. As shown in FIG. 1, the heat conductive member 4 is formed in a wave shape along the outer surface 3 a of each battery 3 arranged in the width direction (X direction) when viewed from the vertical direction, and the depth direction (Y When the batteries 3 are adjacent to each other in the direction), the battery 3 is sandwiched between the adjacent batteries 3. As shown in FIG. 2, the heat conducting member 4 has a contact portion 4a that contacts the outer surface 3a of the battery 3, and an extending portion 4b that extends from the contact portion 4a in the vertical direction. The extended portion 4 b is immersed in the fluid member 5 and is thermally connected to the fluid member 5. Here, that the heat conductive member 4 is thermally connected to the fluid member 5 means that the extension portion 4 b is immersed in the fluid member 5 so that heat is transferred between the heat conductor 4 and the fluid member 5. This is the case when giving and receiving is possible.

流動性部材５は、流動性、熱伝導性および蓄熱性を有する液体で構成される。流動性、熱伝導性および蓄熱性を有する液体としては、例えば、水、シリコンオイルなどの油、エチレングリコール、グリセリン、アセトン、ブライン等がある。本実施形態における流動性部材５は、複数個の電池３と鉛直方向に対向する筐体２の内部底面２ｂに貯留する。流動性部材５は、熱伝導部材４の延設部４ｂが部分的に浸かるように、筐体２の内部底面２ｂ上に満たされている。   The fluid member 5 is composed of a liquid having fluidity, thermal conductivity, and heat storage property. Examples of the liquid having fluidity, thermal conductivity, and heat storage include water, oil such as silicone oil, ethylene glycol, glycerin, acetone, and brine. The fluid member 5 in the present embodiment is stored in the inner bottom surface 2b of the housing 2 that faces the plurality of batteries 3 in the vertical direction. The fluid member 5 is filled on the inner bottom surface 2b of the housing 2 so that the extended portion 4b of the heat conducting member 4 is partially immersed.

上記のように構成される車両用電池パック１では、各電池３で発生した熱は、各電池３の外側面３ａから接触部４ａを介して熱伝導部材４に伝わる。熱伝導部材４に伝わった熱は、当該熱伝導部材４の鉛直方向に延在する延設部４ｂに移動し、当該延設部４ｂから流動性部材５に伝わり、当該流動性部材５に蓄熱される。流動性部材５に蓄えられた熱は、その一部が流動性部材５に接する筐体２の内部底面２ｂや内部側面２ｃに伝熱され、筐体２の外表面から外気などの熱媒体に放熱される。   In the vehicle battery pack 1 configured as described above, the heat generated in each battery 3 is transmitted from the outer surface 3a of each battery 3 to the heat conducting member 4 via the contact portion 4a. The heat transferred to the heat conducting member 4 moves to the extending portion 4b extending in the vertical direction of the heat conducting member 4, is transferred from the extending portion 4b to the fluid member 5, and stores heat in the fluid member 5. Is done. A part of the heat stored in the fluid member 5 is transferred to the inner bottom surface 2b and the inner side surface 2c of the housing 2 in contact with the fluid member 5, and is transferred from the outer surface of the housing 2 to a heat medium such as outside air. Heat is dissipated.

また、上記のように構成される車両用電池パック１では、流動性部材５が流動性、熱伝導性および蓄熱性を有することから、自然対流や車両走行時の揺れ等による乱流によって流動性部材５の温度の均一化が急速に進むと共に、流動性部材５に接する筐体２の内部底面２ｂや内部側面２ｃに繰り返し伝熱され、筐体２の外表面から外気などの熱媒体に放熱される。   Further, in the vehicle battery pack 1 configured as described above, since the fluid member 5 has fluidity, thermal conductivity, and heat storage property, the fluidity is caused by natural convection or turbulence caused by shaking during vehicle travel. As the temperature of the member 5 rapidly becomes uniform, heat is repeatedly transferred to the inner bottom surface 2b and the inner side surface 2c of the housing 2 in contact with the fluid member 5, and heat is radiated from the outer surface of the housing 2 to a heat medium such as outside air. Is done.

また、上記のように構成される車両用電池パック１では、車両の走行当初は、複数個の電池３と流動性部材５との温度差がないため熱の移動は発生しないが、電池温度が上昇すると、電池３で発生した熱は、上述のように熱伝導部材４から流動性部材５に伝わる。電池３は、熱伝導部材４から流動性部材５に熱を奪われ続けることで温度上昇が緩やかになる。また、電池３に短時間で高負荷がかかり電池温度が上昇したときでも、車両の走行による揺れ等により流動性部材５から筐体２の内部側面２ｃ等に繰り返し伝熱され、筐体２の外表面から外気などの熱媒体に放熱されることで、電池３の温度上昇が緩やかになり、電池温度が適正範囲に保持される時間が長くなる。   Further, in the vehicle battery pack 1 configured as described above, there is no temperature difference between the plurality of batteries 3 and the fluid member 5 at the beginning of traveling of the vehicle. When it rises, the heat generated in the battery 3 is transferred from the heat conducting member 4 to the fluid member 5 as described above. The battery 3 is gradually deprived of heat from the heat conducting member 4 to the fluid member 5 so that the temperature rise is moderated. Further, even when a high load is applied to the battery 3 in a short time and the battery temperature rises, heat is repeatedly transferred from the fluid member 5 to the internal side surface 2c of the housing 2 due to shaking caused by traveling of the vehicle, etc. By radiating heat from the outer surface to a heat medium such as outside air, the temperature rise of the battery 3 is moderated, and the time during which the battery temperature is maintained in an appropriate range becomes longer.

また、上記のように構成される車両用電池パック１では、車両の冷間時において、流動性部材５に蓄えられていた熱が、延設部４ｂを介して熱伝導部材４に伝わり、各電池３との各接触部４ａを介して各電池３に伝わる。   Further, in the vehicle battery pack 1 configured as described above, when the vehicle is cold, the heat stored in the fluid member 5 is transmitted to the heat conducting member 4 through the extended portion 4b, It is transmitted to each battery 3 through each contact portion 4a with the battery 3.

以上説明した車両用電池パック１は、熱伝導性を有する筐体２と、筐体２の内部空間２ａにおいて鉛直方向と直交する幅方向に配列される複数個の電池３と、複数個の電池３の配列方向に沿って配置され、少なくとも各電池３の外側面３ａに接触する熱伝導部材４と、熱伝導性および蓄熱性を有し、複数個の電池３と鉛直方向に対向する筐体２の内部底面２ｂに貯留する流動性部材５とを備える。熱伝導部材４は、各電池３の外側面３ａと接触する接触部４ａから鉛直方向に向かって延設された延設部４ｂが流動性部材５に浸かる。これにより、各電池３で発生した熱が、熱伝導部材４の接触部４ａから鉛直方向に向かって延設された延設部４ｂを経由して流動性部材５に伝わるので、筐体２に収容された複数個の電池３を、その配置位置にかかわらず、均一に冷却することができる。従来は、各電池３で発生した熱を、複数個の電池３の配列方向（幅方向）に沿って延設された熱伝導部材から筐体２の内部側面２ｃに伝えていたことから、例えば筐体２の内部側面２ｃ側に配置されていた電池３と内部側面２ｃから遠くに配置された電池３とでは冷却効果に差が生じていたが、図２に示すように、熱伝導部材４を介して各電池３の鉛直方向下にある流動性部材５に伝熱することが可能となるので、各電池３を均一に冷却することが可能となる。その結果、各電池３の劣化が略等しく進むようになり、劣化が進んだ電池の存在による電池パック全体の性能の低下を抑制することが可能となる。   The vehicle battery pack 1 described above includes a casing 2 having thermal conductivity, a plurality of batteries 3 arranged in a width direction orthogonal to the vertical direction in an internal space 2a of the casing 2, and a plurality of batteries. 3 is arranged along the arrangement direction of the battery 3, the heat conductive member 4 that contacts at least the outer surface 3 a of each battery 3, and a housing that has heat conductivity and heat storage properties and faces the plurality of batteries 3 in the vertical direction. 2 and the fluidity member 5 stored in the inner bottom surface 2b. In the heat conducting member 4, an extended portion 4 b extending in the vertical direction from the contact portion 4 a that contacts the outer surface 3 a of each battery 3 is immersed in the fluid member 5. As a result, the heat generated in each battery 3 is transmitted to the fluid member 5 via the extending portion 4b extending in the vertical direction from the contact portion 4a of the heat conducting member 4, so that the housing 2 The accommodated plurality of batteries 3 can be uniformly cooled regardless of their arrangement positions. Conventionally, heat generated in each battery 3 is transmitted to the inner side surface 2c of the housing 2 from a heat conducting member extending along the arrangement direction (width direction) of the plurality of batteries 3, for example, Although there was a difference in cooling effect between the battery 3 arranged on the inner side surface 2c side of the housing 2 and the battery 3 arranged far from the inner side surface 2c, as shown in FIG. Thus, heat can be transferred to the fluid member 5 below the vertical direction of each battery 3, so that each battery 3 can be uniformly cooled. As a result, the deterioration of each battery 3 progresses substantially equally, and it is possible to suppress a decrease in the performance of the entire battery pack due to the presence of the battery having deteriorated.

[実施形態２]
次に、実施形態２に係る車両用電池パックについて説明する。図３は、実施形態２に係る車両用電池パックの概略構成を示す縦断面図である。 [Embodiment 2]
Next, the vehicle battery pack according to Embodiment 2 will be described. FIG. 3 is a longitudinal sectional view showing a schematic configuration of the vehicle battery pack according to the second embodiment.

図３に示す実施形態２に係る車両用電池パック１０は、熱伝導部材４０の延設部４０ｂの鉛直方向の端部が上述の車両用電池パック１と異なる。なお、以下の説明において、上述した実施形態１および本実施形態と共通する構成については同一の符号を付して、その説明を省略する。実施形態３、実施形態４も同様である。   The vehicle battery pack 10 according to Embodiment 2 shown in FIG. 3 is different from the above-described vehicle battery pack 1 in the end portion in the vertical direction of the extending portion 40 b of the heat conducting member 40. In the following description, the same reference numerals are given to the configurations common to the above-described first embodiment and this embodiment, and the description thereof is omitted. The same applies to the third and fourth embodiments.

熱伝導部材４０は、上述した熱伝導部材４に対して、延設部４０ｂが部分的に流動性部材５に浸かると共に、延設部４０ｂの鉛直方向の端部４０ｃが筐体２の内部底面２ｂと接触する点が異なる。本実施形態における熱伝導部材４０は、延設部４０ｂの鉛直方向の端部４０ｃがＬ字形状を有し、端部４０ｃの鉛直方向に向く面が筐体２の内部底面２ｂに対して面接触する。   In the heat conducting member 40, the extended portion 40 b is partially immersed in the fluid member 5 with respect to the heat conducting member 4 described above, and the vertical end 40 c of the extended portion 40 b is the inner bottom surface of the housing 2. The point which contacts 2b differs. In the heat conducting member 40 according to the present embodiment, the end 40c in the vertical direction of the extending portion 40b has an L shape, and the surface facing the vertical direction of the end 40c faces the inner bottom surface 2b of the housing 2. Contact.

上記のように構成される車両用電池パック１０では、各電池３から熱伝導部材４０に伝わった熱は、延設部４０ｂに移動し、端部４０ｃと面接触する筐体２の内部底面２ｂに伝熱され、筐体２の外表面から外気などの熱媒体に放熱される。さらに、延設部４０ｂに移動した熱の一部は、当該延設部４０ｂが浸かっている流動性部材５に伝わる。   In the vehicle battery pack 10 configured as described above, the heat transmitted from each battery 3 to the heat conducting member 40 moves to the extended portion 40b and is in surface contact with the end portion 40c. The heat is transferred to the heat medium such as outside air from the outer surface of the housing 2. Furthermore, a part of the heat moved to the extended portion 40b is transmitted to the fluid member 5 in which the extended portion 40b is immersed.

以上説明した車両用電池パック１０は、熱伝導部材４０は、延設部４０ｂが筐体２の内部底面２ｂと接触する。これにより、熱伝導部材４０に伝わった熱が延設部４０ｂに移動し、端部４０ｃと面接触する筐体２の内部底面２ｂに伝熱され、筐体２の外表面から外気などの熱媒体に放熱されるので、各電池３で発生した熱を確実に冷却することができる。したがって、各電池３が確実に冷却されることで、各電池３の劣化が略等しく進むようになり、劣化が進んだ電池の存在による電池パック全体の性能の低下を抑制することが可能となる。   In the vehicle battery pack 10 described above, the extending portion 40 b of the heat conducting member 40 is in contact with the inner bottom surface 2 b of the housing 2. As a result, the heat transmitted to the heat conducting member 40 moves to the extending portion 40b and is transferred to the inner bottom surface 2b of the housing 2 that is in surface contact with the end portion 40c, and heat from the outer surface of the housing 2 such as outside air. Since heat is radiated to the medium, the heat generated in each battery 3 can be reliably cooled. Therefore, when each battery 3 is reliably cooled, the deterioration of each battery 3 proceeds substantially equally, and it is possible to suppress a decrease in the performance of the entire battery pack due to the presence of the battery that has deteriorated. .

[実施形態３]
次に、実施形態３に係る車両用電池パックについて説明する。図４は、実施形態３に係る車両用電池パックの概略構成を示す平面図である。図５は、図４中のＢ−Ｂ´断面図である。なお、図４は、筐体２０の図示しない蓋を取り外して、内部を外部に露出させた状態を示す図である。 [Embodiment 3]
Next, a vehicle battery pack according to Embodiment 3 will be described. FIG. 4 is a plan view illustrating a schematic configuration of the vehicle battery pack according to the third embodiment. FIG. 5 is a cross-sectional view taken along the line BB ′ in FIG. FIG. 4 is a view showing a state in which a cover (not shown) of the housing 20 is removed and the inside is exposed to the outside.

図４、図５に示す実施形態３に係る車両用電池パック１１は、筐体２０の内部底面２０ｂに複数の間仕切り壁２１を有する点が上述の車両用電池パック１と異なる。   The vehicle battery pack 11 according to Embodiment 3 shown in FIGS. 4 and 5 is different from the above-described vehicle battery pack 1 in that a plurality of partition walls 21 are provided on the inner bottom surface 20b of the housing 20.

筐体２０は、上述した筐体２に対して、内部底面２０ｂに１つまたは複数の間仕切り壁２１が立設されている点が異なる。本実施形態における複数の間仕切り壁２１は、筐体２０の内部底面２０ｂから鉛直方向に立設され、鉛直方向から見た場合に、隣り合う延設部４ｂの間に配置される。   The case 20 is different from the case 2 described above in that one or a plurality of partition walls 21 are erected on the inner bottom surface 20b. The plurality of partition walls 21 in the present embodiment are erected in the vertical direction from the inner bottom surface 20 b of the housing 20, and are arranged between the adjacent extending portions 4 b when viewed from the vertical direction.

上記のように構成される車両用電池パック１１では、車両の状態（傾斜路、登坂路等の走行時および停止時など）によって流動性部材５が筐体２０の内部底面２０ｂ上で偏在しようとも、間仕切り壁間に必要最小限の流動性部材５を残すことが可能となり、延設部４ｂが部分的に流動性部材５に浸かる状態を維持することができる。なお、間仕切り壁間には、鉛直方向から見た場合に隣り合う間仕切り壁２１間、および、鉛直方向から見た場合に間仕切り壁２１と筐体２０の内部側面２０ｃとの間を含むものとする。間仕切り壁２１は、流動性部材５の内部底面２０ｂ上の移動を制約するため、車両の重量バランスを維持することが容易となる。   In the vehicle battery pack 11 configured as described above, the fluid member 5 may be unevenly distributed on the inner bottom surface 20b of the housing 20 depending on the state of the vehicle (when traveling on an inclined road, an uphill road, or the like). The minimum necessary fluidity member 5 can be left between the partition walls, and the extended portion 4b can be maintained partially immersed in the fluidity member 5. Note that the space between the partition walls includes the space between the adjacent partition walls 21 when viewed from the vertical direction and the space between the partition wall 21 and the inner side surface 20c of the housing 20 when viewed from the vertical direction. Since the partition wall 21 restricts the movement on the inner bottom surface 20b of the fluid member 5, it becomes easy to maintain the weight balance of the vehicle.

上記のように構成される車両用電池パック１１では、複数の間仕切り壁２１は、車両の状態を考慮して、その鉛直方向の高さ（以下、単に「高さ」と呼ぶ。）が、筐体２０の内部底面２０ｂに貯留する流動性部材５の液面レベルよりも低くなるように構成されることが好ましい。複数の間仕切り壁２１は、例えば、車両が水平状態にあるときに、その高さが流動性部材５の液面レベルより低いことで、流動性部材５による均熱効果が維持され、かつ流動性部材５の偏在を防ぐことができる。   In the vehicle battery pack 11 configured as described above, the plurality of partition walls 21 have a vertical height (hereinafter simply referred to as “height”) in consideration of the state of the vehicle. It is preferable to be configured to be lower than the liquid level of the fluid member 5 stored in the inner bottom surface 20 b of the body 20. For example, when the vehicle is in a horizontal state, the plurality of partition walls 21 have a height lower than the liquid level of the fluid member 5 so that the soaking effect by the fluid member 5 is maintained and the fluidity is maintained. The uneven distribution of the member 5 can be prevented.

以上説明した車両用電池パック１１は、筐体２０が、内部底面２０ｂから鉛直方向に立設される少なくとも１つの間仕切り壁２１を有する。間仕切り壁２１は、鉛直方向から見た場合に、隣り合う延設部４ｂの間に配置される。これにより、車両の状態にかかわらず、少なからず延設部４ｂが流動性部材５に浸かる状態を維持することができ、熱伝導部材４および流動性部材５による均熱効果を維持することができる。   In the vehicle battery pack 11 described above, the housing 20 has at least one partition wall 21 erected in the vertical direction from the inner bottom surface 20b. The partition wall 21 is arrange | positioned between the adjacent extension parts 4b, when it sees from a perpendicular direction. Thereby, regardless of the state of the vehicle, the state in which the extended portion 4b is immersed in the fluid member 5 can be maintained, and the soaking effect by the heat conducting member 4 and the fluid member 5 can be maintained. .

[実施形態４]
次に、実施形態４に係る車両用電池パックについて説明する。図６は、実施形態４に係る車両用電池パックの概略構成を示す縦断面図である。 [Embodiment 4]
Next, a vehicle battery pack according to Embodiment 4 will be described. FIG. 6 is a longitudinal sectional view showing a schematic configuration of the vehicle battery pack according to the fourth embodiment.

図６に示す実施形態４に係る車両用電池パック１２は、筐体２０の内部底面２０ｂに複数の間仕切り壁２１を有する点と、熱伝導部材４０の延設部４０ｂの鉛直方向の端部が内部底面２０ｂに接触する点が上述の車両用電池パック１と異なる。   In the vehicle battery pack 12 according to the fourth embodiment shown in FIG. 6, a point having a plurality of partition walls 21 on the inner bottom surface 20 b of the housing 20 and a vertical end portion of the extending portion 40 b of the heat conducting member 40 are provided. The point which contacts the internal bottom face 20b is different from the vehicle battery pack 1 described above.

熱伝導部材４０は、上述した熱伝導部材４に対して、延設部４０ｂが部分的に流動性部材５に浸かると共に、延設部４０ｂの鉛直方向の端部４０ｃが筐体２の内部底面２０ｂと接触する点が異なる。本実施形態における熱伝導部材４０は、延設部４０ｂの鉛直方向の端部４０ｃがＬ字形状を有し、端部４０ｃの鉛直方向に向く面が筐体２０の内部底面２０ｂに対して面接触する。   In the heat conducting member 40, the extended portion 40 b is partially immersed in the fluid member 5 with respect to the heat conducting member 4 described above, and the vertical end 40 c of the extended portion 40 b is the inner bottom surface of the housing 2. The point which contacts 20b differs. In the heat conductive member 40 according to the present embodiment, the end 40c in the vertical direction of the extending portion 40b has an L shape, and the surface facing the vertical direction of the end 40c faces the inner bottom surface 20b of the housing 20. Contact.

筐体２０は、上述した筐体２に対して、内部底面２０ｂに１つまたは複数の間仕切り壁２１が立設されている点が異なる。本実施形態における複数の間仕切り壁２１は、筐体２０の内部底面２０ｂから鉛直方向に立設され、鉛直方向から見た場合に、隣り合う延設部４０ｂの間に配置される   The case 20 is different from the case 2 described above in that one or a plurality of partition walls 21 are erected on the inner bottom surface 20b. The plurality of partition walls 21 in the present embodiment are erected in the vertical direction from the inner bottom surface 20 b of the housing 20, and are arranged between adjacent extending portions 40 b when viewed from the vertical direction.

車両用電池パック１２は、熱伝導部材４０が、延設部４０ｂが筐体２０の内部底面２０ｂと接触する。そして、筐体２０が、内部底面２０ｂから鉛直方向に立設される少なくとも１つの間仕切り壁２１を有し、間仕切り壁２１が、鉛直方向から見た場合に、隣り合う延設部４０ｂの間に配置される。これにより、各電池３で発生した熱を確実に冷却することができると共に、車両の状態にかかわらず、少なからず延設部４０ｂが流動性部材５に浸かる状態を維持することができ、熱伝導部材４０および流動性部材５による均熱効果を維持することができる。   In the vehicle battery pack 12, the heat conducting member 40 and the extending portion 40 b are in contact with the inner bottom surface 20 b of the housing 20. And the housing | casing 20 has the at least 1 partition wall 21 standingly arranged from the internal bottom face 20b by the perpendicular direction, and when the partition wall 21 is seen from a perpendicular direction, it is between adjacent extension parts 40b. Be placed. Thereby, the heat generated in each battery 3 can be reliably cooled, and the state in which the extended portion 40b is immersed in the fluid member 5 can be maintained regardless of the state of the vehicle. The soaking effect by the member 40 and the fluid member 5 can be maintained.

［変形例］
なお、以上の説明では、流動性部材５は、熱伝導性および蓄熱性を有する材料で構成される場合について説明したが、これに限定されるものではなく、潜熱蓄熱材または顕熱蓄熱材のいずれか一方であってもよいし、流動性液体に潜熱蓄熱材または顕熱蓄熱材が混ざり合ったものであってもよい。例えば、流動性部材５が潜熱蓄熱材である場合、車両の急加速や急減速等で電池３に負荷がかかって電池温度が急に上昇しても、潜熱蓄熱材として流動性部材５が相変化して蓄熱するので、電池３の温度上昇を抑制することが可能となる。また、車両用電池パック１２の低温時には、固体化した潜熱蓄熱材の熱伝導性が低下するので、電池３で発生した熱が熱伝導部材４および流動性部材５を介して筐体２に伝熱することを抑制することができ、電池３の暖機が可能になる。また、電池３への回生量の制限が行われていた場合には、当該制限がより早く解除され得る。 [Modification]
In the above description, the fluid member 5 has been described with respect to the case where it is made of a material having thermal conductivity and heat storage property, but the present invention is not limited to this, and the latent heat storage material or sensible heat storage material Either one of them may be used, or a fluid liquid may be a mixture of a latent heat storage material or a sensible heat storage material. For example, when the fluid member 5 is a latent heat storage material, even if the battery 3 is subjected to a load due to sudden acceleration or deceleration of the vehicle and the battery temperature suddenly rises, the fluid member 5 is used as the latent heat storage material. Since it changes and accumulates heat, it becomes possible to suppress the temperature rise of the battery 3. Further, when the vehicle battery pack 12 is at a low temperature, the heat conductivity of the solidified latent heat storage material is lowered, so that heat generated in the battery 3 is transmitted to the housing 2 via the heat conductive member 4 and the fluid member 5. Heating can be suppressed, and the battery 3 can be warmed up. In addition, when the regenerative amount is restricted to the battery 3, the restriction can be released earlier.

また、潜熱蓄熱材としての流動性部材５の相変化温度を電池３の許容上限温度より低く設定することで、所定値を超えて温度が上昇した場合には、潜熱蓄熱材としての流動性部材５を液化させ、液化した潜熱蓄熱材が流動することで、流動性部材５から筐体２，２０への伝熱が促進され、電池３の温度上昇をより防ぐことが可能である。   Moreover, when the temperature rises above a predetermined value by setting the phase change temperature of the fluid member 5 as the latent heat storage material lower than the allowable upper limit temperature of the battery 3, the fluid member as the latent heat storage material 5 is liquefied, and the liquefied latent heat storage material flows, heat transfer from the fluid member 5 to the casings 2 and 20 is promoted, and the temperature rise of the battery 3 can be further prevented.

一般的なリチウムイオン電池は、環境温度が３０℃〜５０℃の範囲で使用する場合、電池出力や電池寿命に対する影響を抑えることが可能であるが、６０℃を超える環境で使用すると劣化が進む。そこで、上記潜熱蓄熱材の固−液相変化温度を、例えば３０℃〜５０℃程度に設定することが好ましい。この条件では、電池温度の上昇過程で上記相変化温度付近になると潜熱により温度上昇を抑制することが可能であり、さらに電池温度が上昇すると、潜熱蓄熱材が液化することで流動し、筐体２への積極的な伝熱が可能となる。流動性部材５は、潜熱蓄熱材の固−液相変化する温度が電池３の使用温度に合わせて設定されることが好ましい。   When a general lithium ion battery is used in an environment temperature range of 30 ° C. to 50 ° C., it is possible to suppress the influence on the battery output and the battery life, but the deterioration proceeds when used in an environment exceeding 60 ° C. . Therefore, it is preferable to set the solid-liquid phase change temperature of the latent heat storage material to, for example, about 30 ° C. to 50 ° C. Under this condition, it is possible to suppress the temperature increase due to latent heat when the battery temperature increases in the vicinity of the phase change temperature, and when the battery temperature further increases, the latent heat storage material flows due to liquefaction and flows into the housing. Active heat transfer to 2 is possible. In the fluid member 5, it is preferable that the temperature at which the solid-liquid phase change of the latent heat storage material is set in accordance with the use temperature of the battery 3.

また、以上の説明では、車両用電池パック１は、筐体２の内部底面２ｂに流動性部材５を貯留する構成であったが、これに限定されるものではなく、流動性部材５が貯留しておらず、熱伝導部材４の延設部４ｂの端部が内部底面２ｂに接触する構成であってもよい。   In the above description, the vehicle battery pack 1 is configured to store the fluid member 5 on the inner bottom surface 2b of the housing 2. However, the present invention is not limited to this, and the fluid member 5 is stored. However, the end of the extended portion 4b of the heat conducting member 4 may be in contact with the inner bottom surface 2b.

また、以上の説明では、電池３は、円筒型のリチウムイオン電池である場合について説明したが、これに限定されるものではない。例えば、四角柱型の電池であってもよいし、リチウムイオン電池以外の電池であってもよい。   In the above description, the battery 3 is a cylindrical lithium ion battery. However, the present invention is not limited to this. For example, a quadrangular prism type battery or a battery other than a lithium ion battery may be used.

また、以上の説明では、熱伝導部材４は、図１および図４に示すように、千鳥格子状に配列された複数個の電池３の間を外側面３ａに接触しながら縫うように配置されているが、これに限定されるものではない。   In the above description, as shown in FIGS. 1 and 4, the heat conducting member 4 is arranged so as to sew between a plurality of batteries 3 arranged in a staggered pattern while contacting the outer surface 3a. However, it is not limited to this.

また、以上の説明では、複数の間仕切り壁２１は、図５、図６に示すように、延設部４ｂ，４０ｂを幅方向から挟むように配置されていてもよい。また、複数の間仕切り壁２１は、鉛直方向の高さがすべて同じ高さであってもよいし、異なる高さであってもよい。また、複数の間仕切り壁２１は、鉛直方向の上部に厚み方向（幅方向）に貫通する貫通孔が設けられていてもよい。   In the above description, the plurality of partition walls 21 may be arranged so as to sandwich the extending portions 4b and 40b from the width direction, as shown in FIGS. Further, the plurality of partition walls 21 may all have the same height in the vertical direction or may have different heights. In addition, the plurality of partition walls 21 may be provided with a through-hole penetrating in the thickness direction (width direction) at the upper part in the vertical direction.

また、以上の説明では、延設部４０ｂの端部４０ｃは、Ｌ字形状を有するとしたが、筐体２，２０の内部底面２ｂ，２０ｂに接触するものであれば、どのような形状であってもよい。また、内部底面２ｂ，２０ｂから鉛直方向に立設する立設部（不図示）を設け、当該立設部と延設部４０ｂを幅方向で重ね合わせるように接触させる構成であってもよい。   In the above description, the end portion 40c of the extended portion 40b is L-shaped. However, any shape can be used as long as it contacts the inner bottom surfaces 2b and 20b of the casings 2 and 20. There may be. Moreover, the structure which provides the standing part (not shown) standing upright from the internal bottom face 2b, 20b, and contacts the said standing part and the extension part 40b so that it may overlap in the width direction may be sufficient.

１ 車両用電池パック
２ 筐体
２ａ 内部空間
２ｂ 内部底面
２ｃ 内部側面
３ 電池
３ａ 外側面
４ 熱伝導部材
４ａ 接触部
５ 流動性部材 DESCRIPTION OF SYMBOLS 1 Vehicle battery pack 2 Case 2a Internal space 2b Internal bottom surface 2c Internal side surface 3 Battery 3a Outer side surface 4 Thermal conduction member 4a Contact part 5 Fluidity member

Claims (5)

熱伝導性を有する筐体と、
前記筐体の内部空間において鉛直方向と直交する幅方向に配列される複数個の電池と、
前記複数個の電池の配列方向に沿って配置され、少なくとも各前記電池の外側面に接触する熱伝導部材と、
熱伝導性および蓄熱性を有し、前記複数個の電池と鉛直方向に対向する前記筐体の内部底面に貯留する流動性部材とを備え、
前記熱伝導部材は、各前記電池の外側面と接触する接触部から前記鉛直方向に向かって延設された延設部が前記流動性部材に浸かることを特徴とする車両用電池パック。 A housing having thermal conductivity;
A plurality of batteries arranged in the width direction orthogonal to the vertical direction in the internal space of the housing;
A heat-conducting member disposed along the arrangement direction of the plurality of batteries and in contact with at least the outer surface of each battery;
A fluid member that has thermal conductivity and heat storage, and stores the plurality of batteries and an inner bottom surface of the casing facing in a vertical direction;
The vehicle battery pack according to claim 1, wherein the heat conductive member has an extending portion extending in the vertical direction from a contact portion in contact with an outer surface of each of the batteries soaked in the fluid member. 前記流動性部材は、潜熱蓄熱材または顕熱蓄熱材の少なくとも一方が含まれることを特徴とする請求項１に記載の車両用電池パック。   The vehicle battery pack according to claim 1, wherein the fluid member includes at least one of a latent heat storage material and a sensible heat storage material. 前記筐体は、前記内部底面から鉛直方向に立設される少なくとも１つの間仕切り壁を有し、
前記間仕切り壁は、鉛直方向から見た場合に、隣り合う前記延設部の間に配置されることを特徴とする請求項１または２に記載の車両用電池パック。 The housing has at least one partition wall standing in a vertical direction from the inner bottom surface,
3. The vehicle battery pack according to claim 1, wherein the partition wall is disposed between the extending portions adjacent to each other when viewed from a vertical direction. 前記熱伝導部材は、前記延設部が前記筐体の内部底面と接触することを特徴とする請求項１〜３のいずれか１項に記載の車両用電池パック。   4. The vehicle battery pack according to claim 1, wherein the extended portion of the heat conducting member is in contact with an inner bottom surface of the housing. 熱伝導性を有する筐体と、
前記筐体の内部空間において鉛直方向と直交する幅方向に配列される複数個の電池と、
前記複数個の電池の配列方向に沿って配置され、少なくとも各前記電池の外側面に接触する熱伝導部材とを備え、
前記熱伝導部材は、各前記電池の外側面と接触する接触部から前記鉛直方向に向かって延設された延設部が前記筐体の内部底面と接触することを特徴とする車両用電池パック。 A housing having thermal conductivity;
A plurality of batteries arranged in the width direction orthogonal to the vertical direction in the internal space of the housing;
A heat conducting member disposed along the arrangement direction of the plurality of batteries and in contact with at least the outer surface of each battery;
The vehicle battery pack characterized in that the heat conducting member has an extending portion that extends in the vertical direction from a contact portion that contacts an outer surface of each battery, and contacts an inner bottom surface of the casing. .
JP2016166961A 2016-08-29 2016-08-29 Vehicle battery pack Active JP6929623B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016166961A JP6929623B2 (en) 2016-08-29 2016-08-29 Vehicle battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016166961A JP6929623B2 (en) 2016-08-29 2016-08-29 Vehicle battery pack

Publications (2)

Publication Number Publication Date
JP2018037157A true JP2018037157A (en) 2018-03-08
JP6929623B2 JP6929623B2 (en) 2021-09-01

Family

ID=61565941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016166961A Active JP6929623B2 (en) 2016-08-29 2016-08-29 Vehicle battery pack

Country Status (1)

Country Link
JP (1) JP6929623B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019160732A (en) * 2018-03-16 2019-09-19 矢崎総業株式会社 Battery pack
CN110492201A (en) * 2019-08-30 2019-11-22 长沙优力电驱动***有限公司 Electric car and its power battery
EP3793018A1 (en) 2019-09-10 2021-03-17 Yazaki Corporation Vehicle battery pack
JP2023501826A (en) * 2020-09-14 2023-01-19 エルジー エナジー ソリューション リミテッド Battery pack that applies the heat diffusion prevention structure of the battery module

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10144361A (en) * 1996-11-12 1998-05-29 Furukawa Electric Co Ltd:The Battery system and transportation machine provided with the same
JP2002373708A (en) * 2001-06-15 2002-12-26 Hitachi Koki Co Ltd Battery pack
US20100291419A1 (en) * 2009-05-15 2010-11-18 Sinoelectric Powertrain Corporation Battery pack heat exchanger, systems, and methods
JP2012516527A (en) * 2009-01-28 2012-07-19 リ−テック・バッテリー・ゲーエムベーハー Battery with storage case partially filled with coolant
JP2012204129A (en) * 2011-03-25 2012-10-22 Hitachi Maxell Ltd Battery pack

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10144361A (en) * 1996-11-12 1998-05-29 Furukawa Electric Co Ltd:The Battery system and transportation machine provided with the same
JP2002373708A (en) * 2001-06-15 2002-12-26 Hitachi Koki Co Ltd Battery pack
JP2012516527A (en) * 2009-01-28 2012-07-19 リ−テック・バッテリー・ゲーエムベーハー Battery with storage case partially filled with coolant
US20100291419A1 (en) * 2009-05-15 2010-11-18 Sinoelectric Powertrain Corporation Battery pack heat exchanger, systems, and methods
JP2012204129A (en) * 2011-03-25 2012-10-22 Hitachi Maxell Ltd Battery pack

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019160732A (en) * 2018-03-16 2019-09-19 矢崎総業株式会社 Battery pack
CN110492201A (en) * 2019-08-30 2019-11-22 长沙优力电驱动***有限公司 Electric car and its power battery
EP3793018A1 (en) 2019-09-10 2021-03-17 Yazaki Corporation Vehicle battery pack
US11404734B2 (en) 2019-09-10 2022-08-02 Yazaki Corporation Vehicle battery pack
JP2023501826A (en) * 2020-09-14 2023-01-19 エルジー エナジー ソリューション リミテッド Battery pack that applies the heat diffusion prevention structure of the battery module
JP7414990B2 (en) 2020-09-14 2024-01-16 エルジー エナジー ソリューション リミテッド Battery pack with battery module heat diffusion prevention structure applied

Also Published As

Publication number Publication date
JP6929623B2 (en) 2021-09-01

Similar Documents

Publication Publication Date Title
JP6719562B2 (en) Battery module
KR102081396B1 (en) Battery module, battery pack comprising the battery module and vehicle comprising the battery pack
JP6929623B2 (en) Vehicle battery pack
Zhao et al. An experimental study of lithium ion battery thermal management using flexible hydrogel films
JP6762383B2 (en) Battery module, battery pack containing it and car containing this battery pack
JP6762381B2 (en) Battery module, battery pack containing it and car containing this battery pack
US8349481B2 (en) Power storage apparatus
US20100119926A1 (en) Electric battery comprising a mechanical and thermal conditioning system
JP2018531492A6 (en) Battery module, battery pack including the battery module, and automobile including the battery pack
KR102184753B1 (en) Battery module, battery pack comprising the battery module and vehicle comprising the battery pack
KR101496523B1 (en) Radiant heat plate for battery cell
CN112563610B (en) Battery pack for vehicle
JP2012252958A (en) Battery pack
KR20210065268A (en) Busbar Frame Assembly and Battery module including the same
JP6751320B2 (en) Vehicle battery pack
CN112912459A (en) Holder structure for an energy storage cell and method for producing the same
JP6946083B2 (en) Vehicle battery pack
KR101715033B1 (en) Battery pack
KR20190074516A (en) Battery module
JP6730119B2 (en) Vehicle battery pack
JP2020187859A (en) Battery pack
JP2017220396A (en) On-vehicle battery
JP6787725B2 (en) Vehicle battery pack
JP2020177748A (en) Vehicular battery pack
KR20160054443A (en) Battery Cell Tray Employed with Heating Wire

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190718

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20200529

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200623

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200805

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20200923

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201117

C60 Trial request (containing other claim documents, opposition documents)

Free format text: JAPANESE INTERMEDIATE CODE: C60

Effective date: 20201117

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20201125

C21 Notice of transfer of a case for reconsideration by examiners before appeal proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C21

Effective date: 20201201

A912 Re-examination (zenchi) completed and case transferred to appeal board

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20201225

C211 Notice of termination of reconsideration by examiners before appeal proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C211

Effective date: 20210105

C22 Notice of designation (change) of administrative judge

Free format text: JAPANESE INTERMEDIATE CODE: C22

Effective date: 20210420

C23 Notice of termination of proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C23

Effective date: 20210706

C03 Trial/appeal decision taken

Free format text: JAPANESE INTERMEDIATE CODE: C03

Effective date: 20210810

C30A Notification sent

Free format text: JAPANESE INTERMEDIATE CODE: C3012

Effective date: 20210810

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210811

R150 Certificate of patent or registration of utility model

Ref document number: 6929623

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350