公开(公告)号：US20130272685A1

公开(公告)日：2013-10-17

申请号：US13856273

申请日：2013-04-03

Applicant: Dyson Technology Limited

Inventor： Yuen Kee LEOW ,  Jun Hong LEE ,  Ying Fang TAN ,  I Made Artha Yoga AJNYANA ,  John David WALLACE

IPC: F24H9/20

CPC classification number: F24H9/2071 ,  F04D27/001 ,  F04D27/004 ,  F04D27/008 ,  F05D2260/85 ,  F24H3/0411 ,  F24H9/1872

Abstract: Heating apparatus includes an air inlet, a plurality of air outlets, an impeller, a motor for rotating the impeller to draw air through the air inlet, a user interface for allowing a user to select a rotational speed of the motor from a user selectable range of values, and a plurality of heater assemblies each comprising at least one positive temperature coefficient (PTC) heating element for heating air passing from the air inlet to a respective air outlet. The magnitude of a current drawn by the heater assemblies is detected, and the rotational speed of the motor is controlled independently from the rotational speed selected by the user depending on a characteristic of the current drawn by the heater assemblies.

Abstract translation: 加热装置包括空气入口，多个空气出口，叶轮，用于使叶轮旋转以通过空气入口抽取空气的马达，用户界面，用于允许用户从用户可选择的范围中选择马达的转速 以及多个加热器组件，每个加热器组件包括至少一个正温度系数（PTC）加热元件，用于加热从空气入口到相应空气出口的空气。 检测由加热器组件引起的电流的大小，并且根据由加热器组件吸取的电流的特性，独立于用户选择的旋转速度来控制电动机的转速。