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Control method for air door heater of air-cooled refrigerator

A control method and technology of air-cooled refrigerators, which are applied in lighting and heating equipment, household refrigeration devices, cooling fluid circulation devices, etc., can solve problems such as abnormal operation of the damper, achieve the problem of abnormal damper, save energy, and reduce energy consumption Effect

Pending Publication Date: 2022-07-22
CHANGHONG MEILING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method for controlling the damper heater of an air-cooled refrigerator. The damper heater is turned on by calculating the room temperature difference to judge the working state of the damper, which can effectively solve the problem of abnormal operation of the damper due to freezing of the damper. Regular heating to reduce energy consumption; save energy consumption, and solve the abnormal problem of damper in time to improve user experience

Method used

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  • Control method for air door heater of air-cooled refrigerator

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Embodiment 1

[0024] see figure 1 As shown, the present invention is a control method for an air-cooled refrigerator air door heater, comprising the following steps:

[0025] Stp1, the controller judges the cooling state of the refrigerator compartment;

[0026] Stp2. When the compartment is in a cooling state and there is no cooling demand, the control step includes the following sub-steps:

[0027] S01, the controller records the temperature data T1°C collected by the current compartment temperature sensor;

[0028] S02, after a preset time ta of the refrigerator, the controller reads the temperature data T2°C collected by the compartment temperature sensor;

[0029] S03. The controller calculates the difference between the temperature data T1 and T2 ΔT=T2-T1, if ΔT≤Ta°C, the controller controls the heater to turn on for heating, the controller starts timing, the controller controls the damper to reset, and controls the damper every te Time to perform a reset action until ΔT>Tb°C or ti...

Embodiment 2

[0037] An air-cooled refrigerator damper heater control method, comprising a damper heater, a damper, a compartment temperature sensor, a controller, and the controller is respectively connected with the heater, the damper, and the compartment temperature sensor. The heater is a heating wire.

[0038] When the refrigerating room is in the cooling state, the temperature of the compartment gradually decreases. When the shutdown point is reached, the refrigerating room has no power-on request, and the current compartment temperature T1 is recorded, and the timer starts to count. The room temperature gradually increased. If the damper cannot be closed due to freezing, etc., the temperature of the refrigerator compartment will not rise. After ta=30min, the current compartment temperature T2, calculate ΔT=T2-T1. If ΔT≤Ta=0.5℃, turn on the heater, reset the damper at the same time, and reset it every te=10min. Until ΔT>Tb=0.5°C or tb reaches 100min, stop heating and reset the damp...

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Abstract

The invention discloses a control method for an air door heater of an air-cooled refrigerator. Comprising the following steps that a controller judges the refrigeration state of a refrigerator chamber; the controller records temperature data T1 DEG C collected by the current compartment temperature sensor; after the preset time ta, the controller reads the temperature data T2 DEG C collected by the chamber temperature sensor; the controller judges that delta T is equal to T2-T1, the controller controls the heater to be started for heating according to the judgment result, the timer conducts timing, and the controller controls the heater to stop working and the air door to reset until delta T meets the requirement or reaches time tb. The working state of the air door is judged by calculating the room temperature difference to start the air door heater, the problem that the air door works abnormally due to freezing of the air door can be effectively solved, the heater does not need to conduct heating regularly, and energy consumption is reduced; energy consumption is saved, the problem of air door abnormity is solved in time, and user experience is improved.

Description

technical field [0001] The invention belongs to the technical field of refrigerator control, in particular to a control method for an air-cooled refrigerator air door heater. Background technique [0002] The air-cooled refrigerator uses the switch of the damper to introduce the cold air of the evaporator into different compartments, so as to control whether the different compartments are refrigerated or not. However, there is water vapor in the refrigerator. When too much water vapor condenses on the damper, the damper cannot be opened or closed normally. This is the need to turn on the damper heater, so that the ice condensed on the surface of the damper evaporates, and the damper can work normally. [0003] The usual damper heater control method is to open for a period of time when the damper is closed and defrosted. This control method may open the damper without ice, resulting in energy loss. Or when the damper is abnormal, it cannot be opened in time, causing the dam...

Claims

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Application Information

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IPC IPC(8): F25D29/00F25D17/00F25D17/04F25D23/00F25D21/08
CPCF25D29/003F25D17/005F25D17/04F25D23/00F25D21/08F25D2700/122
Inventor 朱佳贝汪良树胡国攀彭孟杰
Owner CHANGHONG MEILING CO LTD
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