Heat pump water heater and water temperature control method and device for heat pump water heater

Abstract

The invention discloses a water temperature control method for a heat pump water heater, comprising the following steps: obtaining the default water temperature setting of the heat pump water heater; determining the working function of the heat pump water heater, and determining the The related parameters of the heat pump water heater in the function; the target water temperature is calculated through the working function according to the default set water temperature and the related parameters; and the heat pump water heater is controlled to work at the target water temperature. The method can automatically adjust the target water temperature, ensure the user's water comfort and the energy-saving performance of the whole machine, provide convenience for the user, and improve the user's experience. The invention also discloses a water temperature control device for a heat pump water heater and a heat pump water heater.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a water temperature control method for a heat pump water heater, a water temperature control device for a heat pump water heater, and a heat pump water heater. Background technique [0002] With the development of heat pump water heaters, users have higher and higher diversified demands on heat pump water heaters. For example, in the related art, the water temperature setting scheme of the heat pump water heater is relatively simple, and the user can only manually set the water temperature within the preset range, and the default water temperature is set by default when the power is first turned on, and if the set water temperature is not adjusted afterwards , the heat pump water heater will always run at the default set water temperature. [0003] However, the disadvantage of the related technology is that it is necessary to manually adjust the set water temperatu...

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Problems solved by technology

[0003] However, the disadvantage of the related technology is that it is necessary to manually adjust the set water temperature in case of seasonal changes. If the manual adjustment is not performed, the heat pump water heater will always run at the default set water temperature. Reduced and excess hot water will cause energy waste, and at the same time, the compressor load will be too large, which will affect the reliability of the compressor; when the ambient temperature is low, the demand for hot water will increase, which may cause insufficient hot water and poor comfort

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