36results about How to "Timely defrosting" patented technology

The invention discloses an automatic defrosting control method for a frost free refrigerator. The method comprises a step of: intelligently judging a defrosting pointcut, namely testing evaporation temperature, refrigerating chamber temperature, environment temperature and real-time running state of the refrigerator, judging the attenuation degree of the heat exchange capacity of an evaporator ofthe refrigerator according to a set algorithm of the control method, and further judging the defrosting pointcut to automatically control the defrosting process. By the method, defrosting cut accuracy and exit timeliness are realized, the energy efficiency level and refreshing quality of the refrigerator are improved, and the intelligent control level of the refrigerator is improved.

The invention relates to the technical field of air conditioners and discloses an air conditioner comprising a condenser, wherein an outlet of the condenser is provided with a first defrosting sensor, and the middle of the condenser is provided with a second defrosting sensor. The invention also discloses a method for controlling the air conditioner to defrost, comprising the following steps of: when the temperature of the outlet of the condenser, detected by the first defrosting sensor, or the temperature in the middle of the condenser, detected by the second defrosting sensor, is lower thana first set temperature, starting the air conditioner to defrost. Two defrosting sensor are adopted to ensures that the air conditioner defrosts in time and prevent the occurrence of the condition that the air conditioner can not defrost due to too thick frost. In addition, the air conditioner can cleanly defrost can still ensure the defrosting effect under the condition of air shortage.

Disclosed are a defrosting system of a heat pump water heater and a control method of the defrosting system. The defrosting system comprises a compressor, a condenser, a throttling element, a liquid accumulator, an evaporator and a gas-liquid separator which are sequentially connected, a first electric heating pipe is welded in the liquid accumulator and serially connected with a first temperature controller disposed in the liquid accumulator to be connected with a controller, a second electric heating pipe is welded in the gas-liquid separator and serially connected with a second temperature controller disposed in the gas-liquid separator to be connected with the controller, a compressor exhausting temperature sensor is arranged on the pipe wall of an exhausting pipe of the compressor, an evaporator outlet temperature sensor is arranged in an outlet pipeline of the evaporator, a water temperature sensor contacting with water is arranged in the condenser, the compressor exhausting temperature sensor, the evaporator outlet temperature sensor and the water temperature sensor are all connected with the controller, and the throttling element is also connected with the controller. By the defrosting system, the problems of low water temperature, long defrosting time, low defrosting efficiency, inaccurate judgment on controlling of defrosting starting and defrosting finishing and the like in the process of defrosting can be solved.

The invention provides a defrosting control method of a refrigerator, comprising: counting the cumulative working time and the number of times of opening and closing of the refrigerator since the last initialization operation of the refrigerator, and obtaining the ambient temperature and humidity of the refrigerator; obtaining the preset defrosting time of the refrigerator Start conditions, defrost start conditions include: the number of door opening and closing times reaches the threshold of door opening and closing times, and the threshold of door opening and closing times is determined according to the cumulative working time, ambient humidity and ambient temperature; judging whether the refrigerator meets the defrosting start conditions, if the refrigerator meets the defrosting start conditions condition, generate a trigger signal to start defrosting. The defrosting control method of the present invention determines the door opening and closing times threshold according to the ambient humidity, ambient temperature, and cumulative working hours of the refrigerator, and can work according to the actual environmental conditions such as the ambient humidity and ambient temperature of the refrigerator, the cumulative working hours, and the number of times of door opening and closing. State and other parameters to accurately determine the starting point of defrosting, which can more accurately correspond to the actual situation to defrost in time.

The invention provides an air conditioner and a defrosting control method thereof. During the defrosting operation of the air conditioner, the outdoor ambient wind speed is obtained, the outdoor coil temperature is detected, and the defrosting exit temperature corresponding to the wind speed grade to which the outdoor ambient wind speed belongs is obtained. When the outdoor coil temperature is higher than the defrost exit temperature corresponding to the wind speed level to which the outdoor ambient wind speed belongs, the air conditioner is controlled to exit the defrost; among them, different wind speed levels correspond to different defrost exit temperatures, and the wind speed level is negatively correlated with the defrost exit temperature . The present invention sets different defrosting exit temperatures according to the wind speed level, and the defrosting exit temperature can reflect the actual state of the current wind speed level when defrosting is completed, avoid the influence of ambient wind on the temperature of the outdoor coil, and ensure that the defrosting can exit in time when the defrosting is completed. Defrost to ensure indoor heating comfort.

The invention provides a method for controlling the defrosting of a refrigerator. The method comprises the following steps of: (A) detecting the environmental moisture and the environmental temperature of a refrigerator; (B) counting the opening frequency and the opening time of the refrigerator to obtain a cumulative opening frequency and a cumulative opening time; and (C) detecting the cumulative opening frequency and the cumulative opening time according to a specified time interval and defrosting the refrigerator when either the cumulative opening frequency or the cumulative opening time is larger than a preset specified value and the environmental moisture and the environmental temperature which are detected are under the specified conditions. Accordingly, a start defrosting point can be accurately confirmed according to practical environmental conditions, the operation conditions to the refrigerator, and the like so as to defrost in time to a certain degree and effectively reduce the power consumption.

The invention discloses an air conditioner control method and device, a storage medium and an air conditioner. The method comprises the steps of determining a heat comfort state of an indoor environment of an air conditioner, and determining a frosting situation of an outdoor heat exchanger of the air conditioner; and according to the heat comfort state of the indoor environment and / or the frosting situation of the outdoor heat exchanger, determining a current operation mode of the air conditioner, and controlling the air conditioner to operate according to the current operation mode, whereinthe step of controlling the air conditioner to operate according to the current operation mode comprises: controlling the air conditioner to continuous operate at a heating mode, and controlling the air conditioner to reduce the output heat so as to operate, or controlling the air conditioner to operate at a defrosting mode, or controlling the air conditioner to stop or reduce frequency so as to operate. According to the scheme provided by the invention, the problem that since whether the air conditioner enters the defrosting mode or not is judged according to the temperature of the outdoor heat exchanger or a difference value between the temperature of the outdoor heat exchanger and the outdoor environment temperature, the heat comfort experience of a user is affected due to big indoor temperature drop during defrosting can be solved, and an effect on improving the heat comfort experience of the user during defrosting is achieved.