Heating method and heating device

Abstract

The invention discloses a heating method. The heating method comprises the steps of setting a heating cycle, determining a normal heating time T which is need for the completion of heating in one heating cycle, and the longest heating time T' allowed in the heating cycle; measuring the actual heating time t used for completing the N th heating cycle; comparing the normal heating time T with the actual heating time t of the N th heating cycle to obtain a heating time correction value C of the N th heating cycle; then using the heating time correction value C of the N th heating cycle to correct the longest heating time T' of the (N+1) th heating cycle. The invention further discloses a heating device. Through the heating method and the heating device, the longest heating time can be effectively adjusted, and thus the using comfort of domestic electrical appliances like dish washing machines is improved, and the energy dissipation is lowered.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a heating method and a heating device. Background technique [0002] At present, spray dishwashers are the mainstream dishwashers on the market, and they all have heating systems. In the washing process, there are often several heating steps, either controlled by time (the preset heating time is reached, the heating step ends), or controlled by temperature (the preset heating temperature is reached, the heating step ends) . For the heating step controlled by temperature, in order to prevent continuous heating due to problems in the heating system, overtime control is often added on the basis of temperature control. That is, when the heating time exceeds the maximum heating time, even if the temperature has not yet reached the preset heating temperature, the heating step will be ended and the next step will be entered. [0003] For the setting of the longest heating time, th...

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Problems solved by technology

[0004] Obviously, due to differences in air temperature, inlet water temperature, target temperature for heating steps, etc., no one fixed value will suit all situations well

For occasions where the heating rate is too fast, the maximum heating time may be set too large. If the temperature sensor fails, a timeout mechanism is required to terminate the heating step, which may lead to energy waste due to excessive heating temperature, and even damage the relatively low temperature resistance. parts (such as rubber parts and plastic parts); and for occasions where the heating rate is slow, the maximum heating time may be set too small, and it is easy to overheat before reaching the preset heating temperature, resulting in low washing temperature and washing Not clean enough, causing customer complaints

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