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    • 9. 发明申请
    • HEATING RESISTOR
    • 加热电阻
    • US20160338149A1
    • 2016-11-17
    • US15149485
    • 2016-05-09
    • BorgWarner Ludwigsburg GmbH
    • Stephen SweeneyAnthony MaherKatherine O'Sullivan
    • H05B3/14H01C7/04H01C7/02
    • H05B3/141H01C7/022H01C7/042H05B2203/017H05B2203/02
    • Disclosed is a heating resistor comprising a body of a ceramic PTC resistor material with at least one face of the body coated by a layer of an NTC material. The combination of a PTC resistor and an NTC resistor limits the inrush current at the beginning of a heating process when the PTC resistor is still cold and therefore has a low electrical resistance. When the resistor is heated, the electrical resistance of the NTC resistor decreases while the electrical resistance of the PTC resistor increases. Thus, the electric current changes less until the PTC resistor reaches its critical temperature where its electrical resistance increases by several orders of magnitude. The lowering of electrical current at the beginning of the heating process is especially advantageous in applications that rely on a limited power supply, for example a car battery.
    • 公开了一种加热电阻器,其包括陶瓷PTC电阻器材料体,其具有由NTC材料层涂覆的主体的至少一个表面。 PTC电阻和NTC电阻的组合在PTC电阻仍然很冷时限制了加热过程开始时的浪涌电流,因此具有低电阻。 当电阻加热时,NTC电阻的电阻随PTC电阻的电阻增加而减小。 因此,电流变化较小,直到PTC电阻达到其电阻增加数个数量级的临界温度。 在加热过程开始时电流的降低在依赖于有限电源(例如汽车电池)的应用中是特别有利的。