The invention discloses a thin film heating element and a preparation method thereof, an electric heating device and an electric vehicle, the thin film heating element comprises a resistive layer (10), the resistive layer (10) comprises a main body part used for forming a resistance pattern, the main body part comprises a deflection part (11) and a straight part (12) which is electrically and continuously adjacent to the deflection part (11) and is parallel to each other, and the straight part (12) and the deflection part (11) are electrically and continuously adjacent to each other. And the section resistance of the deflection part (11) is smaller than that of the straight part (12). By reducing the cross-section resistance at the deflection portion, local heat accumulation at the deflection portion can be improved, and current concentration can be improved.
本申请公开了薄膜加热元件及其制备方法、电加热设备和电动车辆,其中,所述薄膜加热元件包括电阻层(10),所述电阻层(10)包括用于形成电阻图案的主体部,所述主体部包括偏转部分(11)和与所述偏转部分(11)电连续地邻接且彼此平行的直型部分(12),所述偏转部分(11)的截面电阻小于所述直型部分(12)的截面电阻。通过降低偏转部分处的截面电阻,可以改善偏转部分处的局部热量聚集,并对电流集中起到改善效果。
Thin film heating element and preparation method thereof, electric heating equipment and electric vehicle
薄膜加热元件及其制备方法、电加热设备和电动车辆
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL , Verfahren zum Aufbringen von Flüssigkeiten oder von anderen fließfähigen Stoffen auf Oberflächen allgemein / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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