公开(公告)号：US20150246594A1

公开(公告)日：2015-09-03

申请号：US14428291

申请日：2013-09-02

Applicant: DENSO CORPORATION

Inventor： Yoshiharu Endoh ,  Yasuhiro Yokoo ,  Terukazu Higuchi

IPC: B60H1/32

CPC classification number: B60H1/321 ,  B60H2001/00961 ,  B60H2001/3263 ,  B60H2001/3282

Abstract: When a detection temperature detected by a refrigerant temperature sensor-is lower than a threshold value, it is determined to be YES at a frosting determining section as an exterior heat exchanger is frosted, an electric control unit reduces an air volume to be blown by an electric blower at an air-volume controlling section. Accordingly, an air volume blown from openings through the heating heat exchanger is reduced. In the result, an air volume passing through the heating heat exchanger can be reduced in a state where the heating heat exchanger heats an inside air using high-temperature high-pressure refrigerant when the exterior heat exchanger is frosted. Accordingly, a temperature of air after passing through the heating heat exchanger can be prevented from decreasing.

Abstract translation: 当由制冷剂温度传感器检测到的检测温度低于阈值时，由于外部热交换器结霜，所以在结霜判定部判定为“是”，电气控制部将通过 风量控制部的电动鼓风机。 因此，从通过加热热交换器的开口吹出的空气量减少。 结果，当外部热交换器磨砂时，在加热热交换器使用高温高压制冷剂加热内部空气的状态下，可以减少通过加热热交换器的空气量。 因此，可以防止通过加热热交换器后的空气的温度下降。