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Defrosting method and device for water heater, water heater and storage medium

A water heater and defrosting temperature technology, applied in the fields of water heater defrosting, storage medium, and water heaters, can solve problems such as poor system stability, achieve the effect of avoiding frequent start and stop and improving stability

Active Publication Date: 2021-12-28
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] When the water heater is running in the up-frequency defrosting mode, in order to avoid freezing, the compressor needs to be started and stopped frequently, which leads to poor system stability

Method used

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  • Defrosting method and device for water heater, water heater and storage medium
  • Defrosting method and device for water heater, water heater and storage medium
  • Defrosting method and device for water heater, water heater and storage medium

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Embodiment Construction

[0018] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0019] The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used...

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Abstract

The invention relates to the technical field of intelligent household appliances, and discloses a defrosting method for a water heater. The defrosting method comprises the following steps of acquiring a defrosting temperature value; under the condition that the defrosting temperature value is greater than a temperature threshold value, the compressor is controlled to operate in a first mode, and defrosting is conducted; and under the condition that the defrosting temperature value is less than or equal to the temperature threshold value, the compressor is controlled to operate in a second mode, and anti-freezing defrosting is conducted. and whether the operation mode of the compressor needs the defrosting mode of anti-freezing protection or not is judged by comparing the defrosting temperature value with the temperature threshold value, therefore, the running frequency of the compressor can be adjusted by setting a higher temperature threshold value under the condition that the heat exchanger is not frozen, so that the compressor can be always in a running state in the whole defrosting process without shutdown, and the stability of the system is improved. The invention further discloses a defrosting device for the water heater, the water heater and a storage medium.

Description

technical field [0001] The present application relates to the technical field of smart home appliances, for example, to a method and device for defrosting a water heater, a water heater, and a storage medium. Background technique [0002] At present, the plate heat exchanger is configured as the heat exchange unit of the water heater due to its high heat exchange efficiency, small heat loss, compact and light structure, small footprint, and long service life. However, when running the up-frequency defrosting mode at low temperature, the evaporation temperature during the up-frequency process is relatively low, and the plate heat exchanger will freeze, and in severe cases, the plate heat exchanger will be damaged, resulting in the failure of the evaporator to exchange heat. Refrigerant cannot evaporate, causing adverse effects such as compressor liquid return. [0003] In order to avoid damage to the heat exchanger caused by freezing, the existing technology is to judge whet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20F25B47/02
CPCF24H9/2007F25B47/02
Inventor 张嘉诚刘汇泉刘峻杉李旭夏鹏罗建文毛守博
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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