A method for controlling the speed of a fan motor and a refrigerator using the method
A fan motor, speed control technology, applied in applications, household appliances, household refrigeration devices, etc., can solve problems such as inability to achieve cooling effect, and achieve the effect of improving cooling efficiency and reducing noise
Active Publication Date: 2021-01-01
CHANGHONG MEILING CO LTD
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Problems solved by technology
However, this method of temperature acquisition has a large error. The more complex the compartment structure and the larger the space, the greater the temperature error. Often the temperature at the original temperature sensor location of the refrigerator cannot represent the temperature of the entire refrigeration compartment. As the only signal to control the work of refrigeration components, it often cannot achieve a good refrigeration effect
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] In this example, if figure 1 As shown, the refrigerator fan motor speed control method:
[0025] The rotating speed of the fan motor of the refrigerator is divided into m gears, respectively Fs1 to Fsm, where Fs1 is the minimum operating speed of the fan motor, and Fsm is the rated operating speed of the fan motor;
[0026] When the refrigerator is powered on for the first time, the fan motor runs at the highest speed Fsm.
[0027] When the refrigerator is...
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The invention discloses a fan motor rotation speed control method, and relates to the field of home appliance intelligent control. The control method comprises the steps that the real-time temperatureof a current chamber is acquired through an infrared temperature acquisition module arranged in the refrigerator chamber, and the target refrigerator fan motor rotation speed is acquired by calculating a difference value delta T between the real-time temperature of the current chamber and target refrigerating temperature; a current refrigerator fan motor is detected by a fan rotation speed detection module, the current rotation speed of the fan motor is acquired, and a difference value delta Fs between the current rotation speed of the current fan motor and the target refrigerator fan motor rotation speed; and smooth speed decreasing treatment and smooth speed increasing treatment are conducted on the refrigerator fan motor according to the delta Fs obtained through calculation till the refrigerator fan motor rotation speed reaches a target set value. According to the fan motor rotation speed control method, the refrigerating efficiency is improved, and meanwhile the purpose of reducing noise is achieved through smooth speed increasing and smooth speed decreasing.
Description
technical field [0001] The invention belongs to the technical field of intelligent control of home appliances, in particular to a method for controlling the rotational speed of a fan motor and a refrigerator applying the method. Background technique [0002] With the progress of society and the improvement of living standards, consumers have put forward higher demands on the performance of refrigerators. Frost-free air-cooled refrigerators are becoming more and more popular. The fan is an important cooling component of the air-cooled frost-free refrigerator. The cooling capacity on the evaporator is transmitted to each cooling temperature zone through the fan motor through the air duct. Therefore, the control of the fan motor is particularly important in the design of refrigerator control rules. [0003] The fan motor speed control rule is an important topic in the design of the fan motor control rule. If the fan speed is too slow, it will affect the cooling efficiency, a...
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IPC IPC(8): F25D29/00
CPCF25D29/00F25D2600/06F25D2700/12
Inventor 彭孟杰束仁志
Owner CHANGHONG MEILING CO LTD