JP2015153493A - Power supply device - Google Patents

Power supply device Download PDF

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JP2015153493A
JP2015153493A JP2014024203A JP2014024203A JP2015153493A JP 2015153493 A JP2015153493 A JP 2015153493A JP 2014024203 A JP2014024203 A JP 2014024203A JP 2014024203 A JP2014024203 A JP 2014024203A JP 2015153493 A JP2015153493 A JP 2015153493A
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exhaust
chamber
exhaust chamber
battery
cross
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JP6269134B2 (en
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篤史 川瀬
Atsushi Kawase
篤史 川瀬
森田　剛
Takeshi Morita
剛 森田
徹夫 佐々木
Tetsuo Sasaki
徹夫 佐々木
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a power supply device capable of efficiently suppressing inflow of air from the atmosphere into an exhaust chamber via an exhaust path.SOLUTION: A power supply device 11 comprises: a battery chamber 15 housing batteries; an exhaust chamber 17 partitioned from the battery chamber 15; a communication path 19 for communicating the battery chamber 15 with the exhaust chamber 17; and an exhaust path 21 provided in the exhaust chamber 17 and communicated with the outside of the exhaust chamber 17. A cross-sectional area A1 of the communication path 19 and a cross-sectional area A2 of the exhaust path 21 are set smaller than a cross-sectional area A3 of the exhaust chamber 17, and the cross-sectional area A1 of the communication path 19 is set smaller than the cross-sectional area A2 of the exhaust path 21.

Description

本発明は、電源装置に関する。   The present invention relates to a power supply device.

従来から、内部に電池を収容した電池室と、該電池室と開口部を介して連通する排気室と、該排気室に設けられて排気室の外部の大気と連通する排気路と、を備えた電源装置が公知である（例えば、特許文献１参照）。   Conventionally, a battery chamber containing a battery therein, an exhaust chamber communicating with the battery chamber via an opening, and an exhaust path provided in the exhaust chamber and communicating with the atmosphere outside the exhaust chamber are provided. A known power supply device is known (see, for example, Patent Document 1).

そして、電池室内の電池が異常を起こして電池からガスが発生した場合、このガスは、電池室から開口部を介して排気室に送給される。これにより、排気室内の気圧が大気圧よりも高くなると、前記ガスは排気路から排気室の外部に放出される。   When the battery in the battery chamber is abnormal and gas is generated from the battery, the gas is supplied from the battery chamber to the exhaust chamber through the opening. Thereby, when the atmospheric pressure in the exhaust chamber becomes higher than the atmospheric pressure, the gas is released from the exhaust path to the outside of the exhaust chamber.

特開２０１２−１５１２１号公報JP2012-15121A

しかしながら、排気室内の気圧が大気圧よりも極端に高くなった場合、排気路からガスが放出されるにつれて排気室内の気圧が低下して、一時的に大気圧以下になるおそれがある。仮に、排気室内の気圧が大気圧以下になった場合、排気路から排気室内に空気が流入し、この流入した空気と排気室内のガスとが混合して酸化反応を起こすことにより、温度が上昇するおそれがあった。   However, when the atmospheric pressure in the exhaust chamber becomes extremely higher than the atmospheric pressure, the atmospheric pressure in the exhaust chamber decreases as the gas is released from the exhaust passage, and there is a possibility that the atmospheric pressure temporarily falls below the atmospheric pressure. If the pressure in the exhaust chamber falls below atmospheric pressure, air flows into the exhaust chamber from the exhaust passage, and the inflowing air and the gas in the exhaust chamber mix to cause an oxidation reaction, thereby increasing the temperature. There was a risk.

そこで、本発明は、大気から排気路を介して排気室内に空気が流入することを効率的に抑制することができる電源装置を提供することを目的としている。   Therefore, an object of the present invention is to provide a power supply apparatus that can efficiently suppress the inflow of air from the atmosphere into the exhaust chamber through the exhaust path.

本発明に係る電源装置は、電池室と排気室とを連通路で連通し、前記排気室に排気路を設けている。これらの連通路と排気路の断面積は、排気室の断面積よりも小さく設定されている。また、前記連通路の断面積は、排気路の断面積よりも小さく設定されている。   In the power supply device according to the present invention, the battery chamber and the exhaust chamber communicate with each other through a communication path, and an exhaust path is provided in the exhaust chamber. The cross-sectional areas of these communication passages and the exhaust passage are set smaller than the cross-sectional area of the exhaust chamber. The cross-sectional area of the communication passage is set smaller than the cross-sectional area of the exhaust passage.

本発明に係る電源装置によれば、連通路の断面積は、排気路の断面積よりも小さく設定されているため、排気室内からのガスの放出末期のときに、排気室が大気圧以下になることが防止される。従って、大気から排気路を介して排気室内に空気が流入することが効率的に抑制される。   According to the power supply device of the present invention, since the cross-sectional area of the communication passage is set smaller than the cross-sectional area of the exhaust passage, the exhaust chamber is brought to atmospheric pressure or less at the end of gas discharge from the exhaust chamber. Is prevented. Therefore, air can be efficiently suppressed from flowing into the exhaust chamber from the atmosphere via the exhaust path.

本発明の第１実施形態に係る電源装置を搭載した車両の側面図である。1 is a side view of a vehicle equipped with a power supply device according to a first embodiment of the present invention. 図１の電源装置を拡大した斜視図である。It is the perspective view which expanded the power supply device of FIG. 図１の電源装置を拡大した斜視図であり、連通路と排気路との高さ関係を示している。It is the perspective view which expanded the power supply device of FIG. 1, and has shown the height relationship between a communicating path and an exhaust path. 図２の側面図である。FIG. 3 is a side view of FIG. 2. 排気室近傍を拡大した斜視図である。It is the perspective view which expanded the exhaust chamber vicinity. 本発明の第２実施形態に係る電源装置を示す側面図である。It is a side view which shows the power supply device which concerns on 2nd Embodiment of this invention.

以下、本発明の実施の形態を図面に基づき説明する。
[第１実施形態]
まず、本発明の第１実施形態に係る電源装置１１について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First embodiment]
First, the power supply device 11 according to the first embodiment of the present invention will be described.

図１に示すように、車両１の前後には、前輪３と後輪５とが配設されており、これらの前輪３と後輪５の間には、車室７が設けられている。また、車室７の後側には、トランクルーム９が設けられている。そして、車室７およびトランクルーム９の下方には、本実施形態に係る電源装置１１が設けられている。具体的には、車室７の底部を構成するフロアパネル１３の下側には、電源装置１１の電池室１５が設けられ、トランクルーム９の下側には、排気室１７が設けられている。   As shown in FIG. 1, a front wheel 3 and a rear wheel 5 are disposed in the front and rear of the vehicle 1, and a vehicle compartment 7 is provided between the front wheel 3 and the rear wheel 5. A trunk room 9 is provided on the rear side of the passenger compartment 7. A power supply device 11 according to this embodiment is provided below the passenger compartment 7 and the trunk room 9. Specifically, a battery chamber 15 of the power supply device 11 is provided below the floor panel 13 constituting the bottom of the vehicle compartment 7, and an exhaust chamber 17 is provided below the trunk room 9.

電源装置１１は、図１〜図４に示すように、車両前側に配置された電池室１５と、車両後側に配置された排気室１７と、これらの電池室１５および排気室１７を連結する連通路１９と、排気室１７に設けられた排気路２１と、を備えている。なお、図２〜図４では、判りやすくするために、電池室１５および排気室１７の上下高さや前後長さを図１の電源装置１１の寸法に対して変えている。   1 to 4, the power supply device 11 connects the battery chamber 15 disposed on the front side of the vehicle, the exhaust chamber 17 disposed on the rear side of the vehicle, and the battery chamber 15 and the exhaust chamber 17. A communication passage 19 and an exhaust passage 21 provided in the exhaust chamber 17 are provided. 2 to 4, the vertical height and the longitudinal length of the battery chamber 15 and the exhaust chamber 17 are changed with respect to the dimensions of the power supply device 11 of FIG. 1 for easy understanding.

ここで、電池室１５は、排気室１７よりも車両内側である車両前側に配置されている。即ち、電池室１５は、車両前後方向における車両中央側に配置され、排気室１７は、電池室１５よりも車両外側である車両後側に配置されている。   Here, the battery chamber 15 is disposed on the vehicle front side, which is the vehicle inner side than the exhaust chamber 17. That is, the battery chamber 15 is disposed on the vehicle center side in the vehicle front-rear direction, and the exhaust chamber 17 is disposed on the vehicle rear side, which is on the vehicle outer side than the battery chamber 15.

図１〜図４に示すように、前記電池室１５の内部には、電池２３が収容されている。また、電池室１５は、上側に配置された上面２５と、下側に配置された底面２７と、車両前側に配置された前面２９と、車両後側に配置された後面３１と、側方に配置された一対の側面３３，３３と、で囲まれて直方体状に形成されている。   As shown in FIGS. 1 to 4, a battery 23 is accommodated in the battery chamber 15. The battery chamber 15 includes an upper surface 25 disposed on the upper side, a bottom surface 27 disposed on the lower side, a front surface 29 disposed on the front side of the vehicle, a rear surface 31 disposed on the rear side of the vehicle, and laterally. It is surrounded by a pair of arranged side surfaces 33 and 33 and is formed in a rectangular parallelepiped shape.

前記排気室１７は、電池室１５よりも小さく形成されている。排気室１７は、電池室１５に対して区画されており、電池室１５と所定間隔をおいて配置されている。また、排気室１７は、円筒状の連通路１９を介して電池室１５に連通されている。排気室１７は、上側に配置された上壁面４１と、下側に配置された底壁面４３と、車両前側に配置された前壁面４５と、車両後側に配置された後壁面４７と、側方に配置された一対の側壁面４９，４９と、で囲まれて直方体状に形成されている。   The exhaust chamber 17 is formed smaller than the battery chamber 15. The exhaust chamber 17 is partitioned from the battery chamber 15 and is arranged at a predetermined interval from the battery chamber 15. Further, the exhaust chamber 17 communicates with the battery chamber 15 via a cylindrical communication path 19. The exhaust chamber 17 includes an upper wall surface 41 disposed on the upper side, a bottom wall surface 43 disposed on the lower side, a front wall surface 45 disposed on the front side of the vehicle, a rear wall surface 47 disposed on the rear side of the vehicle, And a pair of side wall surfaces 49, 49 arranged in the direction, and is formed in a rectangular parallelepiped shape.

前記連通路１９は、前後方向に沿って延在する円筒状に形成されており、電池室１５の後面３１と排気室１７の前壁面４５とを繋いでいる。これによって、電池室１５の内部と排気室１７の内部とが、連通路１９を介して連通されている。図４に示すように、連通路１９の径寸法はＤ１、長さはＬ１、排気室１７の底壁面４３（電池室１５の底面２７）から連通路１９の上端までの高さがＨ１に設定されている。この長さＬ１は、電池室１５と排気室１７との離間距離と同一である。   The communication path 19 is formed in a cylindrical shape extending in the front-rear direction, and connects the rear surface 31 of the battery chamber 15 and the front wall surface 45 of the exhaust chamber 17. As a result, the inside of the battery chamber 15 and the inside of the exhaust chamber 17 are communicated with each other via the communication path 19. As shown in FIG. 4, the diameter of the communication path 19 is D1, the length is L1, and the height from the bottom wall surface 43 of the exhaust chamber 17 (the bottom surface 27 of the battery chamber 15) to the upper end of the communication path 19 is set to H1. Has been. The length L1 is the same as the distance between the battery chamber 15 and the exhaust chamber 17.

前記排気路２１は、前後方向に沿って延在する円筒状に形成されており、排気室１７の内部と外部（大気）とを連通させている。図４に示すように、排気路２１の径寸法はＤ２、長さはＬ２、排気室１７の底壁面４３から排気路２１の下端までの高さがＨ２に設定されている。径寸法Ｄ１は、径寸法Ｄ２よりも小さく形成されている。また、連通路１９と排気路２１とは、高さ方向でオフセット配置されている。具体的には、排気路２１の下端は、連通路１９の上端よりも△Ｈだけ上側に配置されている。即ち、Ｈ２とＨ１との差が△Ｈになっている。   The exhaust passage 21 is formed in a cylindrical shape extending in the front-rear direction, and communicates the inside of the exhaust chamber 17 with the outside (atmosphere). As shown in FIG. 4, the diameter dimension of the exhaust passage 21 is D2, the length is L2, and the height from the bottom wall surface 43 of the exhaust chamber 17 to the lower end of the exhaust passage 21 is set to H2. The diameter dimension D1 is formed smaller than the diameter dimension D2. The communication passage 19 and the exhaust passage 21 are offset from each other in the height direction. Specifically, the lower end of the exhaust passage 21 is disposed above the upper end of the communication passage 19 by ΔH. That is, the difference between H2 and H1 is ΔH.

図５に示すように、連通路１９の断面積をＡ１、排気路２１の断面積をＡ２、排気室１７の断面積をＡ３とすると、連通路１９の断面積Ａ１および排気路２１の断面積Ａ２は、排気室１７の断面積Ａ３よりも小さく設定されている。また、連通路１９の断面積Ａ１は、排気路２１の断面積Ａ２よりも小さく設定されている。ここで、前記「断面積」とは、空気が流れる方向に直交する断面の面積である。   As shown in FIG. 5, assuming that the cross-sectional area of the communication passage 19 is A1, the cross-sectional area of the exhaust passage 21 is A2, and the cross-sectional area of the exhaust chamber 17 is A3, the cross-sectional area A1 of the communication passage 19 and the cross-sectional area of the exhaust passage 21 A2 is set smaller than the cross-sectional area A3 of the exhaust chamber 17. The cross-sectional area A1 of the communication passage 19 is set smaller than the cross-sectional area A2 of the exhaust passage 21. Here, the “cross-sectional area” is an area of a cross section perpendicular to the direction in which air flows.

以下に、第１実施形態による作用効果について説明する。
（１）第１実施形態に係る電源装置１１は、電池を収容する電池室１５と、該電池室１５と区画された排気室１７と、これらの電池室１５と排気室１７とを連通する連通路１９と、前記排気室１７に設けられて排気室１７の外部と連通する排気路２１と、を備えている。前記連通路１９の断面積Ａ１および排気路２１の断面積Ａ２は、排気室１７の断面積Ａ３よりも小さく設定されると共に、前記連通路１９の断面積Ａ１は、排気路２１の断面積Ａ２よりも小さく設定されている。 Below, the effect by 1st Embodiment is demonstrated.
(1) The power supply device 11 according to the first embodiment includes a battery chamber 15 that houses batteries, an exhaust chamber 17 that is partitioned from the battery chamber 15, and a communication that connects the battery chamber 15 and the exhaust chamber 17. A passage 19 and an exhaust passage 21 provided in the exhaust chamber 17 and communicating with the outside of the exhaust chamber 17 are provided. The cross-sectional area A1 of the communication passage 19 and the cross-sectional area A2 of the exhaust passage 21 are set smaller than the cross-sectional area A3 of the exhaust chamber 17, and the cross-sectional area A1 of the communication passage 19 is the cross-sectional area A2 of the exhaust passage 21. Is set smaller than.

従来、電池２３の異常時に電池からガスが発生するおそれがあり、このガスが電池室１５から排気室１７に流入すると、該排気室１７内の気圧が大気圧よりも極端に大きくなる場合がある。この場合、排気室１７内のガスが排気路２１から大気に放出されるにつれて排気室１７内の気圧が徐々に低下して一時的に大気圧以下になることがある。   Conventionally, gas may be generated from the battery when the battery 23 is abnormal, and when this gas flows into the exhaust chamber 17 from the battery chamber 15, the pressure in the exhaust chamber 17 may become extremely larger than the atmospheric pressure. . In this case, as the gas in the exhaust chamber 17 is released from the exhaust passage 21 to the atmosphere, the air pressure in the exhaust chamber 17 may gradually decrease to temporarily become atmospheric pressure or lower.

ここで、本実施形態では、連通路１９の断面積は、排気路２１の断面積よりも小さく設定されているため、排気室１７内の気圧が大気圧よりも極端に大きくなることが抑制される。これにより、排気室１７内からのガスの放出末期のときに、排気室１７が大気圧以下になることが防止される。以上より、大気から排気路２１を介して排気室１７内に空気が流入することが効率的に抑制される。
（２）前記連通路１９は、排気路２１に対して、高さ方向でオフセットして配置されている。 Here, in this embodiment, since the cross-sectional area of the communication path 19 is set smaller than the cross-sectional area of the exhaust passage 21, it is suppressed that the atmospheric pressure in the exhaust chamber 17 becomes extremely larger than the atmospheric pressure. The This prevents the exhaust chamber 17 from becoming atmospheric pressure or less at the end of gas discharge from the exhaust chamber 17. As described above, air can be efficiently suppressed from flowing into the exhaust chamber 17 through the exhaust passage 21 from the atmosphere.
(2) The communication passage 19 is arranged with an offset in the height direction with respect to the exhaust passage 21.

電池室１５内に収容されている電池２３の異常時に、ガスや電解質等の異物が電池２３から漏れ出すおそれがある。   When the battery 23 accommodated in the battery chamber 15 is abnormal, foreign substances such as gas and electrolyte may leak from the battery 23.

ここで、前記連通路１９と排気路２１とが、高さ方向および左右方向の双方でオーバーラップする位置に配置されていると、電池室１５で電池２３から電解液等の異物が仮に漏れ出した場合、この異物が連通路１９から排気室１７を介して排気路２１から排気室１７の外部に漏出する可能性が高くなる。   Here, if the communication passage 19 and the exhaust passage 21 are arranged at positions where they overlap in both the height direction and the left-right direction, foreign matter such as an electrolyte solution temporarily leaks from the battery 23 in the battery chamber 15. In this case, there is a high possibility that this foreign substance leaks from the communication passage 19 through the exhaust chamber 17 to the outside of the exhaust chamber 17 from the exhaust passage 21.

一方、本実施形態のように、連通路１９と排気路２１とが、高さ方向でオフセットして配置されていると、電池室１５で発生した異物が連通路１９から排気室１７に入ったとしても、当該異物は排気室１７の内壁に当たる。これによって、異物が排気室１７内に滞留し、排気路２１から排気室１７の外部に漏出することが効率的に抑制される。
（３）前記電池室１５および排気室１７は、車両に搭載されており、前記電池室１５は、排気室１７よりも車両前側（車両前後方向における中央側）に配置されている。 On the other hand, when the communication path 19 and the exhaust path 21 are arranged offset in the height direction as in the present embodiment, foreign matter generated in the battery chamber 15 enters the exhaust chamber 17 from the communication path 19. However, the foreign matter hits the inner wall of the exhaust chamber 17. This effectively suppresses foreign matter from staying in the exhaust chamber 17 and leaking from the exhaust passage 21 to the outside of the exhaust chamber 17.
(3) The battery chamber 15 and the exhaust chamber 17 are mounted on a vehicle, and the battery chamber 15 is disposed on the vehicle front side (center side in the vehicle front-rear direction) with respect to the exhaust chamber 17.

従って、車両に対して障害物から衝突荷重が入力される場合、障害物は電池室１５よりも先に排気室１７に当たる。従って、車両衝突時における電池室１５への入力荷重を低減させることができる。   Therefore, when a collision load is input from the obstacle to the vehicle, the obstacle hits the exhaust chamber 17 before the battery chamber 15. Therefore, the input load to the battery chamber 15 at the time of a vehicle collision can be reduced.

[第２実施形態]
次いで、本発明の第２実施形態に係る電源装置１１１について説明する。ただし、第１実施形態と同一構成の部位には、同一符号を付けて説明を省略する。 [Second Embodiment]
Next, the power supply device 111 according to the second embodiment of the present invention will be described. However, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

図６に示すように、第２実施形態に係る電源装置１１１において、排気室１１７および連通路１１９は、内部の気圧が大きくなるに従って容積が増大するように伸縮可能に構成されている。   As shown in FIG. 6, in the power supply device 111 according to the second embodiment, the exhaust chamber 117 and the communication path 119 are configured to be extendable and contractible so that the volume increases as the internal atmospheric pressure increases.

具体的には、排気室１１７を画成する上壁面１４１と側壁面１４９と底壁面１４３とを蛇腹状に形成し、前後方向に伸縮可能に構成した。また、連通路１９も蛇腹状に形成し、前後方向に伸縮可能に構成した。   Specifically, the upper wall surface 141, the side wall surface 149, and the bottom wall surface 143 that define the exhaust chamber 117 are formed in a bellows shape and configured to be extendable in the front-rear direction. Further, the communication path 19 is also formed in a bellows shape and is configured to be extendable in the front-rear direction.

以下に、第２実施形態による作用効果について説明する。
（１）前記排気室１１７は、内部の気圧が大きくなるに従って容積が増大するように伸縮可能に構成されている。 Below, the effect by 2nd Embodiment is demonstrated.
(1) The exhaust chamber 117 is configured to be extendable and contractible so that the volume increases as the internal atmospheric pressure increases.

従って、電池の異常時に電池からガスが発生した場合、このガスが排気室１１７内に流入すると、排気室１１７および連通路１１９の容積が増大する。ここで、ガス（気体）は、容積が増大することによって、圧力および温度ともに低下する。よって、排気室１１７内に流入したガスについても、圧力および温度が低下する。   Accordingly, when gas is generated from the battery when the battery is abnormal, the volume of the exhaust chamber 117 and the communication path 119 increases when the gas flows into the exhaust chamber 117. Here, the gas (gas) decreases in both pressure and temperature as the volume increases. Therefore, the pressure and temperature of the gas that has flowed into the exhaust chamber 117 also decreases.

なお、本発明は、前述した実施形態に限定されず、種々の変形および変更が可能である。   In addition, this invention is not limited to embodiment mentioned above, A various deformation | transformation and change are possible.

例えば、第１実施形態において、連通路１９を排気路２１に対して高さ方向にオフセット配置したが、左右方向（車幅方向）にオフセット配置してもよい。また、高さ方向と左右方向の双方にオフセット配置してもよい。   For example, in the first embodiment, the communication passage 19 is offset in the height direction with respect to the exhaust passage 21, but may be offset in the left-right direction (vehicle width direction). Moreover, you may arrange | position offset in both the height direction and the left-right direction.

さらに、第２実施形態において、排気室１１７および連通路１１９の双方を蛇腹状に形成したが、排気室および連通路のいずれか一方のみを蛇腹状に形成してもよい。また、排気室や連通路は、内部の気圧が大きくなるに従って容積が増大するように伸縮可能な構造であればよく、蛇腹状に限定されない。   Furthermore, in the second embodiment, both the exhaust chamber 117 and the communication path 119 are formed in a bellows shape, but only one of the exhaust chamber and the communication path may be formed in a bellows shape. Further, the exhaust chamber and the communication passage are not limited to a bellows shape as long as the exhaust chamber and the communication path can be expanded and contracted so that the volume increases as the internal atmospheric pressure increases.

また、連通路１９および排気路２１を円筒状に形成したが、断面形状が多角形の筒状体にしてもよい。   Further, although the communication passage 19 and the exhaust passage 21 are formed in a cylindrical shape, a cylindrical body having a polygonal cross section may be used.

１１ 電源装置
１５ 電池室
１７ 排気室
１９ 連通路
２１ 排気路
２３ 電池
１１１ 電源装置
１１７ 排気室
１１９ 連通路 DESCRIPTION OF SYMBOLS 11 Power supply device 15 Battery chamber 17 Exhaust chamber 19 Communication path 21 Exhaust path 23 Battery 111 Power supply device 117 Exhaust chamber 119 Communication path

Claims (4)

電池を収容する電池室と、該電池室と区画された排気室と、これらの電池室と排気室とを連通する連通路と、前記排気室に設けられて排気室の外部と連通する排気路と、を備えた電源装置であって、
前記連通路の断面積および排気路の断面積は、排気室の断面積よりも小さく設定されると共に、
前記連通路の断面積は、排気路の断面積よりも小さく設定されたことを特徴とする電源装置。 A battery chamber that houses the battery, an exhaust chamber partitioned from the battery chamber, a communication path that connects the battery chamber and the exhaust chamber, and an exhaust path that is provided in the exhaust chamber and communicates with the outside of the exhaust chamber And a power supply device comprising:
The cross-sectional area of the communication passage and the cross-sectional area of the exhaust passage are set smaller than the cross-sectional area of the exhaust chamber,
The cross-sectional area of the said communicating path was set smaller than the cross-sectional area of an exhaust path, The power supply device characterized by the above-mentioned. 前記連通路は、排気路に対して、高さ方向および左右方向の少なくともいずれかの方向でオフセットして配置されたことを特徴とする請求項１に記載の電源装置。   2. The power supply device according to claim 1, wherein the communication path is arranged to be offset with respect to the exhaust path in at least one of a height direction and a left-right direction. 前記排気室および連通路の少なくともいずれか一方は、内部の気圧が大きくなるに従って容積が増大するように伸縮可能に構成されたことを特徴とする請求項１または２に記載の電源装置。   3. The power supply device according to claim 1, wherein at least one of the exhaust chamber and the communication path is configured to be extendable and contractible so that the volume increases as the internal atmospheric pressure increases. 前記電池室および排気室は、車両に搭載されており、
前記電池室は、排気室よりも車両内側に配置されていることを特徴とする請求項１〜３のいずれか１項に記載の電源装置。 The battery chamber and the exhaust chamber are mounted on a vehicle,
The power supply apparatus according to any one of claims 1 to 3, wherein the battery chamber is disposed inside the vehicle with respect to the exhaust chamber.
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