To provide a battery case lower structure that achieves both weight reduction and suppression of damage to a cooling structure.SOLUTION: A lower structure of a battery case 10 includes: a case body 11 that houses a battery 2; a cooling mechanism 20 having a passage area 20A in which a refrigerant passage 23 is formed and a non-passage area 20B in which no refrigerant passage is formed and joined to the lower surface of a bottom plate 11a of the case body 11; and an undercover 30 that covers the cooling mechanism 20 from below at a distance from the cooling mechanism 20 and the bottom plate 11a in the vertical direction. A protruding portion 40 protrudes from at least one of a case side facing area 10A that overlaps with the non-passage area 20B in a plan view on the bottom plate 11a of the case body 11, a cover side facing area 30A that overlaps with the non-passage area 20B in a plan view on the undercover 30, and a non-passage area 20B. A protruding height h40 of the protruding portion 40 is greater than a thickness t20 of the cooling mechanism 20.SELECTED DRAWING: Figure 4

    【課題】軽量化と、冷却構造の損傷の抑制とを両立したバッテリーケースの下部構造を提供する。【解決手段】バッテリーケース10の下部構造が、バッテリー2を収容するケース本体11と、冷媒通路23が形成されている通路領域20A及び形成されてない非通路領域20Bを有し、ケース本体11の底板11aの下面に接合された冷却機構20と、冷却機構20及び底板11aから上下方向において間隔をあけて冷却機構20を下から覆うアンダーカバー30とを備える。突出部40が、ケース本体11の底板11aにおいて平面視で非通路領域20Bと重なるケース側対向領域10A、アンダーカバー30において平面視で非通路領域20Bと重なるカバー側対向領域30A、及び非通路領域20Bのうち少なくとも1つから突出する。突出部40の突出高さh40は、冷却機構20の厚さt20よりも大きい。【選択図】図4


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    Title :

    BATTERY CASE LOWER STRUCTURE


    Additional title:

    バッテリーケースの下部構造


    Contributors:

    Publication date :

    2025-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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