The invention discloses a power conversion device, a charging pile, a vehicle-mounted charger and an electric vehicle, which are used for reducing the operation cost of the power conversion device and improving the working stability of the power conversion device. The power conversion device comprises a first capacitor branch which comprises at least one electrolytic capacitor and is used for carrying out voltage stabilization processing on voltage received by the power conversion device to obtain first voltage; the second capacitor branch comprises a plurality of thin-film capacitors which are connected in series and is used for filtering the first voltage and dividing the filtered first voltage to obtain a plurality of second voltages, and each thin-film capacitor obtains one second voltage; the direct-current converters are in one-to-one correspondence with the thin-film capacitors, and the input end of each direct-current converter is connected with the corresponding thin-film capacitor in parallel; and the DC converter is used for performing voltage conversion processing on the second voltage output by the thin-film capacitor.
一种功率转换装置、充电桩、车载充电器和电动汽车,用于降低功率转换装置的运营成本,以及提升功率转换装置的工作稳定性。该功率转换装置包括:第一电容支路,包括至少一个电解电容,用于对功率转换装置接收的电压进行稳压处理,得到第一电压;第二电容支路,包括串联的多个薄膜电容,用于对第一电压进行滤波处理,并对滤波处理后的第一电压进行分压处理,得到多个第二电压,每个薄膜电容分得一个第二电压;与薄膜电容一一对应的直流转换器,每个直流转换器的输入端与对应的薄膜电容并联;直流转换器用于对薄膜电容输出的第二电压进行电压转换处理。
Power conversion device, charging pile, vehicle-mounted charger and electric vehicle
功率转换装置、充电桩、车载充电器和电动汽车
14.10.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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