Frosting detection device and method of heat exchanger and air conditioning system

A detection device and detection method technology, applied in the direction of mechanical equipment, etc., can solve the problems of energy waste, user comfort, and inability to accurately know whether the external heat exchanger is frosted, and achieve stable operation and energy saving effects

Inactive Publication Date: 2018-12-21
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this way, it is not possible to accurately know whether the external heat exchanger is frosted. If the external heat exchanger is defrosted without frosting, it will easily cause energy waste, and frequent defrosting will harm the user. Impact on comfort

Method used

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  • Frosting detection device and method of heat exchanger and air conditioning system
  • Frosting detection device and method of heat exchanger and air conditioning system
  • Frosting detection device and method of heat exchanger and air conditioning system

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] The following describes a frosting detection device for a heat exchanger, an air conditioning system, and a frosting detection method for a heat exchanger according to the embodiments of the present invention with reference to the accompanying drawings.

[0030] figure 1 is a schematic block diagram of a frost detection device for a heat exchanger according to an embodiment of the present invention.

[0031] Such as figure 1 As shown, the frost detection device for a heat exchanger according to the embodiment of the pres...

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Abstract

The invention discloses a frosting detection device and method of a heat exchanger and an air conditioning system. The frosting detection device comprises a light source, a color collecting unit and acontrol unit, wherein the light source is used for emitting white light and irradiating the light on the surface of the heat exchanger; the color collecting unit is used for collecting the light reflected from the surface of the heat exchanger, and obtaining the color of the surface of the heat exchanger according to the reflected light; and the control unit is connected to the color collecting unit, the control unit is used for judging whether the heat exchanger is frosted or not according to the color of the surface of the heat exchanger, and a frosting signal is output when the heat exchanger is frosted. According to the frosting detection device, whether the heat exchanger is frosted or not can be accurately judged so that the heat exchanger can be conveniently defrosted, the air conditioning system can run stably, and energy sources are saved.

Description

technical field [0001] The invention relates to the technical field of frosting detection of heat exchangers, in particular to a frosting detection device of a heat exchanger, an air conditioning system and a frosting detection method of a heat exchanger. Background technique [0002] When the air conditioning system is heating, its external heat exchanger will frost due to the low ambient temperature and high humidity. Once the external heat exchanger is frosted, its heat exchange capacity will drop sharply, thus affecting the operation of the entire system . [0003] In related technologies, it is possible to estimate whether the external heat exchanger is frosted in time according to the temperature of the external environment, and then defrost the external heat exchanger to make the system run stably. However, in this way, it is not possible to accurately know whether the external heat exchanger is frosted. If the external heat exchanger is defrosted without frosting, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/41F24F11/89
CPCF24F11/41F24F11/89
Inventor 贾春冬周罕华
Owner BEIJING ELECTRIC VEHICLE
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