A fan speed control method, control system and refrigerator

A technology of fan speed and control method, which is applied in pump control, mechanical equipment, machines/engines, etc., can solve the problems of out-of-sync frequency conversion compressor and fan speed, waste of cooling capacity distribution, waste of cooling capacity of compressors, etc., to achieve optimization The effect of opening and stopping time of the refrigerator, improving cooling speed, and simple control method

Active Publication Date: 2017-12-19
HEFEI MIDEA REFRIGERATOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. The speed of the fan is not well used to balance the temperature inside the box, and the speed of the inverter compressor and the fan are not synchronized. At the same time, due to the excessive load in the refrigerator room and the large wind resistance, even if the cooling capacity is sufficient, if it cannot pass the high temperature The speed of the wind will send out the cooling capacity, which will reduce the cooling effect
[0008] 2. The required fan speed is not the same under different compressor speeds
Moreover, when the compressor rotates at a high speed, if a large fan speed is used to send air to the refrigerated compartment and the variable temperature compartment, a part of the cooling capacity of the compressor will be wasted.
[0009] 3. The actual request of each room is not combined, resulting in waste of cooling capacity distribution

Method used

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  • A fan speed control method, control system and refrigerator
  • A fan speed control method, control system and refrigerator
  • A fan speed control method, control system and refrigerator

Examples

Experimental program
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Effect test

Embodiment 2

[0103] Example 2, such as figure 2 Said, a fan speed control system, comprising: a request receiving module, used to receive a fan start request; a target voltage selection module, used to judge the cooling capacity and air volume demand of the refrigerator compartment, and according to the cooling capacity of the refrigerator compartment According to the demand of air volume, select the preset target voltage of the fan; the control module is used to adjust the current working voltage of the fan to the target voltage of the fan. In this embodiment, the target voltage selection module includes a first temperature difference acquisition unit, a second temperature difference acquisition unit, a pressure difference acquisition unit, an ambient temperature acquisition unit, a compressor speed acquisition unit, a judgment unit, and a selection unit. The temperature difference collection unit is used to collect the room temperature difference between the refrigerators; the second te...

Embodiment 3

[0104] Example 3, such as image 3 Said, another fan speed control system, the target voltage selection module includes an angle acquisition unit, a counting unit, a pressure difference acquisition unit, an ambient temperature acquisition unit, a compressor speed acquisition unit, a judgment unit and a selection unit, the angle The collection unit is used to collect the opening angle of the damper of the compartment; the counting unit is used to count the number of openings of the damper of the compartment; the differential pressure collection unit is used to collect the differential pressure between the air outlet and the return air outlet of the refrigerator; The ambient temperature acquisition unit is used to collect the current ambient temperature; the rotational speed acquisition unit is used to collect the current compressor rotational speed; the judging unit is used to judge the preset temperature range where the current ambient temperature is located, and generate a fir...

Embodiment 4

[0105] Example 4, such as Figure 4 Said, including the fan speed control system mentioned above.

[0106] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

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Abstract

The invention relates to the technical field of household electric appliances, in particular to a fan rotation speed control method, a control system and a water tank. The method comprises the following steps: receiving fan starting request; judging needs, on refrigerating capacity and air quantity, of a refrigerator compartment, and selecting preset fan target voltage according to the needs, on refrigerating capacity and air quantity, of the refrigerator compartment; and regulating current working voltage of a fan to be fan target voltage. According to the fan rotation speed control method, need conditions, on refrigerating capacity and air quantity, of the refrigerator compartment are taken into consideration, different fan target voltage is selected according to different refrigerating capacity and air quantity needs, and fan rotation speed is controlled by regulating working voltage of the fan, so that the control method is simple, a cooling rate can be improved, refrigerator starting-stopping time can be optimized, and the problem that part of cooling capacity of a compressor is wasted due to the fact that fixed fan rotation speed is adopted for supplying air in the prior art is solved, and therefore, integral power consumption of a refrigerator system is reduced.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a fan speed control method, a control system and a refrigerator. Background technique [0002] At present, the fan speed of refrigerators on the market is generally set to one gear or two gears, while in the related art, two gears of low speed and high speed are usually used to control the fan speed of refrigerators. Specifically, in conventional Low speed is used in the state, and high speed is used in the following situations: [0003] 1. The compressor starts at high speed for 10 seconds before starting; [0004] 2. When the ambient temperature is higher than 35°C, the speed is high; [0005] 3. High speed in special mode, such as quick cooling, quick freezing, etc. [0006] In the prior art, the control method for the fan speed of the refrigerator mainly has the following problems: [0007] 1. The speed of the fan is not well used to balance the temperature i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F25D29/00
CPCF04D27/004F25D29/003F25D29/005F25D2700/12F25D2700/14
Inventor 杜士云张闪陈澎钰王宝阳曾理
Owner HEFEI MIDEA REFRIGERATOR CO LTD
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