Partition refrigeration control method and device for refrigerating chamber of refrigerator

Patent metadata

Field	Value
Publication number	US-10520238-B2
Application number	US-201515578710-A
Country	US
Kind code	B2
Filing date	Sep 28, 2015
Priority date	Jun 26, 2015
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

The present invention provides a partition refrigeration control method and device for a refrigerating chamber of a refrigerator. The partition refrigeration control method comprises: determining that the refrigerating chamber enters a refrigeration state; acquiring the temperatures, sensed by an infrared sensor, of the items stored in the plurality of item storage compartments; comparing the temperature of the item stored in each item storage compartment with a corresponding preset area refrigeration start temperature threshold of each item storage compartment; setting a refrigeration state identifier corresponding to the item storage compartment in which the temperature of the item is higher than the corresponding area refrigeration start temperature threshold as start; and driving the air blowing splitter to operate in a state of providing the cooling air flow to the item storage compartment whose refrigeration state identifier is start.

First claim

What is claimed is:

1. A partition refrigeration control method for a refrigerating chamber of a refrigerator, wherein the refrigerating chamber is divided into a plurality of item storage compartments; an infrared sensor for sensing temperatures of items stored in the item storage compartments respectively is arranged in the refrigerating chamber; the refrigerator is provided with an air blowing splitter configured to distribute a cooling air flow from a cold source to the plurality of item storage compartments; and the partition refrigeration control method comprises:
determining that the refrigerating chamber enters a refrigeration state;
acquiring the temperatures, sensed by the infrared sensor, of the items stored in the plurality of item storage compartments;
comparing the temperature of the items stored in each item storage compartment with a corresponding preset area refrigeration start temperature threshold of each item storage compartment;
setting a refrigeration state identifier corresponding to the item storage compartment in which the temperature of the item is higher than the corresponding area refrigeration start temperature threshold as start; and
driving the air blowing splitter to operate in a state of providing the cooling air flow to the item storage compartment whose refrigeration state identifier is start.

2. The method according to claim 1 , wherein the refrigerating chamber is further provided with a refrigerating environment temperature sensor configured to sense an average environment temperature in the refrigerating chamber, and the step of determining that the refrigerating chamber enters the refrigeration state further comprises:
acquiring the average environment temperature in the refrigerating chamber;
judging whether the average environment temperature in the refrigerating chamber is higher than or equal to a preset overall refrigeration start temperature threshold; and
if yes, opening a refrigerating air gate arranged between the cold source and the air blowing splitter to enable the refrigerating chamber to enter the refrigeration state.

3. The method according to claim 2 , wherein:
whether the refrigerating air gate is already in an open state or not is judged when the average environment temperature in the refrigerating chamber is less than the preset overall refrigeration start temperature threshold;
if yes, whether the average environment temperature in the refrigerating chamber and/or the temperature of the item in each item storage compartment meet(s) a preset refrigeration stop condition of the refrigerating chamber or not is judged; and
if the preset refrigeration stop condition of the refrigerating chamber is met, the refrigerating air gate is closed.

4. The method according to claim 3 , wherein the refrigeration stop condition of the refrigerating chamber comprises:
the temperature of the item stored in each item storage compartment being less than the corresponding preset area refrigeration start temperature threshold of each item storage compartment, wherein the area refrigeration stop temperature threshold of each item storage compartment is less than the corresponding area refrigeration start temperature threshold; or
the average environment temperature in the refrigerating chamber being less than the preset overall refrigeration stop temperature threshold.

5. The method according to claim 3 , wherein the refrigeration stop condition of the refrigerating chamber comprises:
the temperature of the item stored in each item storage compartment being less than the corresponding preset area refrigeration start temperature threshold of each item storage compartment when the average environment temperature in the refrigerating chamber is less than the preset overall refrigeration stop temperature threshold, wherein the area refrigeration stop temperature threshold of each item storage compartment is less than the corresponding area refrigeration start temperature threshold; or
a difference value obtained by subtracting the average environment temperature in the refrigerating chamber from the preset overall refrigeration stop temperature threshold being greater than a preset margin value.

6. The method according to claim 1 , wherein after the step of comparing the temperature of the item stored in each item storage compartment with the preset area refrigeration start temperature threshold of each item storage compartment, the method further comprises:
comparing the temperature of the item stored in each item storage compartment with a corresponding preset area refrigeration stop temperature threshold of each item storage compartment, wherein the area refrigeration stop temperature threshold of each item storage compartment is smaller than the area refrigeration start temperature threshold thereof; and
setting the refrigeration state identifier corresponding to the item storage compartment in which the temperature of the item is less than the corresponding area refrigeration stop temperature threshold as stop.

7. The method according to claim 1 , wherein before the step of determining that the refrigerating chamber enters the refrigeration state, the method further comprises:
acquiring a powering-on and starting signal of the refrigerator; and
initializing a refrigeration system of the refrigerator, the refrigeration system comprising: a compressor, the refrigerating air gate, a fan and the air blowing splitter.

8. The method according to claim 7 , wherein the step of initializing the refrigeration system of the refrigerator comprises:
powering off the compressor and the fan, closing the refrigerating air gate, and driving the air blowing splitter to operate to an initial position.

9. The method according to claim 8 , wherein the refrigerator further comprises a freezing chamber; and after the step of initializing the refrigeration system of the refrigerator, the method further comprises:
judging whether or not to perform refrigeration on the freezing chamber according to an acquired temperature of the same, so as to adjust a start/stop state of the compressor, the fan and the refrigerating air gate; and
after the completion of the refrigeration judgment of the freezing chamber, starting the step of determining that the refrigerating chamber enters the refrigeration state.

10. A partition refrigeration control device for a refrigerating chamber of a refrigerator, wherein the refrigerating chamber is divided into a plurality of item storage compartments; an infrared sensor for sensing temperatures of items stored in the item storage compartments respectively is arranged in the refrigerating chamber; the refrigerator is provided with an air blowing splitter configured to distribute a cooling air flow from a cold source to the plurality of item storage compartments; and the partition refrigeration control device comprises:
a state determination module configured to determine that the refrigerating chamber enters a refrigeration state;
a first temperature acquisition module configured to acquire the temperatures, sensed by the infrared sensor, of the items stored in the plurality of item storage compartments;
a first comparison module configured to compare the temperature of the items stored in each item storage compartment with a corresponding preset area refrigeration start temperature threshold of each item storage compartment;
an identifier setting module configured to set a refrigeration state identifier corresponding to the item storage compartment in which the temperature of the item is higher than the corresponding area refrigeration start temperature threshold as start; and
a driving module configured to drive the air blowing splitter to operate i

Assignees

• Qingdao Haier Joint Stock Co Ltd

Inventors

• Li Chunyang
• Zhu Wenyin
• Tao Haibo
• Wang Ming

Classifications

• F25D2700/02

  Sensors detecting door opening · CPC title

• F25D17/06 Primary

  by forced circulation · CPC title

• F25D29/005

  Mounting of control devices · CPC title

• F25D2700/16

  Sensors measuring the temperature of products · CPC title

• F25D29/003 Primary

  for movable devices · CPC title