Cooling control method for refrigerator

Patent metadata

Field	Value
Publication number	US-11236937-B2
Application number	US-201816626513-A
Country	US
Kind code	B2
Filing date	Jun 28, 2018
Priority date	Jun 29, 2017
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A cooling control method for a refrigerator includes steps of measuring an actual temperature of freezer compartments, and setting a freezing parameter; if the actual temperature of at least one of the freezer compartments is higher than a freezing startup temperature, measuring an actual temperature of a refrigerator compartment, setting a refrigeration parameter, and if the actual temperature of the refrigerator compartment is higher than a refrigeration startup temperature and a difference between the actual temperature of at least one of the freezer compartments and the freezing startup temperature is higher than a preset value, re-setting the refrigeration parameter and the freezing parameter; and, according to the refrigeration parameter and the freezing parameter, causing a compressor, a fan, a refrigeration air door and a branch air supply device to operate in a preset state.

First claim

What is claimed is:

1. A cooling control method for a refrigerator, wherein the refrigerator comprises: a refrigerator body in which a refrigerator compartment and at least one freezer compartment arranged below the refrigerator compartment are defined; a door body arranged on the front side of the refrigerator body for a user to open or close the refrigerator compartment and the at least one freezer compartment; a refrigeration system comprising a compressor and configured to supply cold capacity to the refrigerator compartment and the at least one freezer compartment; a branch air supply device comprising a fan and provided with a refrigerating air outlet which is in controlled communication with the refrigerator compartment and a freezing air outlet which is in controlled communication with the at least one freezer compartment, so as to supply the cold capacity supplied by the refrigeration system into the refrigerator compartment and/or the at least one freezer compartment in a controlled manner; and the cooling control method comprises the following steps:
measuring an actual temperature of the at least one freezer compartment, and setting a freezing parameter of the at least one freezer compartment according to the actual temperature of the at least one freezer compartment;
when the actual temperature of the at least one freezer compartment is higher than a preset freezing startup temperature, measuring an actual temperature of the refrigerator compartment, and setting a refrigerating parameter of the refrigerator compartment according to the actual temperature of the refrigerator compartment; when the actual temperature of the refrigerator compartment is higher than a preset refrigerating startup temperature, and a difference value between the actual temperature of the at least one freezer compartment and the preset freezing startup temperature is higher than a first preset threshold, resetting the refrigerating parameter and the freezing parameter, wherein the refrigerating parameter and the freezing parameter each include a first parameter, a second parameter and a third parameter; and
operating, according to a set of the refrigerating parameter and the freezing parameter, the compressor, the fan and the branch air supply device in a preset state corresponding to the set.

2. The cooling control method for the refrigerator according to claim 1 , wherein the at least one freezer compartment includes a first freezer compartment and a second freezer compartment; the freezing parameter includes a first freezing parameter of the first freezer compartment and a second freezing parameter of the second freezer compartment; and the freezing air outlet of the branch air supply device includes a first freezing air outlet which is in controlled communication with the first freezer compartment and a second freezing air outlet which is in controlled communication with the second freezer compartment; and
a step of setting the first freezing parameter comprises: determining whether an actual temperature of the first freezer compartment is higher than a preset first freezing startup temperature; and if yes, setting the first freezing parameter as the second parameter, and if not, setting the first freezing parameter as the first parameter; and
a step of setting the second freezing parameter comprises: determining whether an actual temperature of the second freezer compartment is higher than a preset second freezing startup temperature; and if yes, setting the second freezing parameter as the second parameter, and if not, setting the second freezing parameter as the first parameter.

3. The cooling control method for the refrigerator according to claim 2 , wherein when the actual temperature of the first freezer compartment is higher than the preset first freezing startup temperature or the actual temperature of the second freezer compartment is higher than the preset second freezing startup temperature, a step of setting the refrigerating parameter of the refrigerator compartment comprises:
determining whether the actual temperature of the refrigerator compartment is higher than the preset refrigerating startup temperature; and
if yes, setting the refrigerating parameter as the second parameter, and
if not, setting the refrigerating parameter as the first parameter.

4. The cooling control method for the refrigerator according to claim 3 , wherein:
when the actual temperature of the first freezer compartment is less than or equal to the preset first freezing startup temperature or the actual temperature of the second freezer compartment is less than or equal to the preset second freezing startup temperature, the refrigerating parameter is set as the first parameter.

5. The cooling control method for the refrigerator according to claim 4 , wherein the step of resetting the refrigerating parameter and the freezing parameter comprises:
determining whether a difference value between the actual temperature of the first freezer compartment and the preset first freezing startup temperature is higher than the first preset threshold; and if yes, setting the refrigerating parameter as the first parameter, and setting the first freezing parameter as the third parameter; and if not, setting the first freezing parameter as the first parameter;
determining whether a difference value between the actual temperature of the second freezer compartment and the preset second freezing startup temperature is higher than the first preset threshold; and if yes, setting the refrigerating parameter as the first parameter, and setting the second freezing parameter as the third parameter; and if not, setting the second freezing parameter as the first parameter.

6. The cooling control method for the refrigerator according to claim 5 , after the step of resetting the refrigerating parameter, further comprising:
determining whether a difference value between the actual temperature of the refrigerator compartment and the preset refrigerating startup temperature is higher than a second preset threshold; and
if yes, setting the refrigerating parameter as the third parameter, and
if not, keeping the refrigerating parameter being the first parameter unchanged.

7. The cooling control method for the refrigerator according to claim 6 , wherein:
when the refrigerating parameter, the first freezing parameter and the second freezing parameter are the first parameter respectively, the compressor and the fan are turned off; the refrigerating air door is closed; and the refrigerating air outlet, the first freezing air outlet and the second freezing air outlet of the branch air supply device are all closed.

8. The cooling control method for the refrigerator according to claim 7 , wherein:
when the refrigerating parameter and the first freezing parameter are the first parameter respectively, and the second freezing parameter is the second parameter, the compressor is operated at a preset second compressor speed; the fan is operated at a preset second fan speed;
the refrigerating air door is closed; the refrigerating air outlet and the first freezing air outlet of the branch air supply device are closed; and the second freezing air outlet is opened.

9. The cooling control method for the refrigerator according to claim 8 , wherein:
when the refrigerating parameter and the second freezing parameter are the first parameter respectively, and the first freezing parameter is the second parameter, the compressor is operated at the second compressor speed; the fan is operated at the second fan speed; the refrigerating air door is closed; the refrigerating air outlet and the second freezing air outlet of the branch air supply device are closed; and the first freezing air outlet of the branch air

Assignees

• Qingdao Haier Joint Stock Co Ltd

Inventors

• Zhu Xiaobing
• Li Chunyang
• Tao Haibo

Classifications

• F25D2700/12

  Sensors measuring the inside temperature · CPC title

• F25D11/02 Primary

  with cooling compartments at different temperatures · CPC title

• F25D17/06

  by forced circulation · CPC title

• Y02B40/00

  Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers · CPC title

• F25D17/045 Primary

  Air flow control arrangements · CPC title