To provide an effective battery temperature rising device which uses waste-heat of a DC/DC converter in low cost.SOLUTION: A battery temperature rising device comprises a heat transfer part which transfers heat caused at a DC/DC converter 20 to a battery 14, a first electric power line 26 which connects the DC/DC converter with the battery at input side of step-up converter 18, a second electric power line 28 which connects the DC/DC converter with the battery at output side of the step-up converter, a first switch 30 which opens/closes the first electric power line, a second switch 32 which opens/closes the second electric power line and an electronic control unit 34. The electronic control unit functions the first switch as ON-state and moreover functions the second switch as OFF-state if temperature of the battery is higher than threshold value and on one hand, functions the first switch as OFF-state and moreover functions the second switch as ON-state if the temperature of the battery is threshold value or less.SELECTED DRAWING: Figure 1

    【課題】低コストでDC/DCコンバータの排熱を利用した効果的なバッテリ昇温装置を提供する。【解決手段】バッテリ昇温装置は、DC/DCコンバータ20で生じた熱をバッテリ14に伝達させる伝熱部と、DC/DCコンバータを昇圧コンバータ18の入力側でバッテリと接続する第1電力線26と、DC/DCコンバータを昇圧コンバータの出力側でバッテリと接続する第2電力線28と、第1電力線を開閉する第1スイッチ30と、第2電力線を開閉する第2スイッチ32と、電子制御ユニット34とを備える。電子制御ユニットは、バッテリの温度が閾値より高い場合には第1スイッチをオン状態に、かつ第2スイッチをオフ状態にし、一方、バッテリの温度が閾値以下の場合には第1スイッチをオフ状態に、かつ第2スイッチをオン状態にする。【選択図】図1


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    Title :

    BATTERY TEMPERATURE RISING DEVICE


    Additional title:

    バッテリ昇温装置


    Contributors:

    Publication date :

    2022-11-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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