Refrigerator controlling method and system with linear compressor

Patent metadata

Field	Value
Publication number	US-10655908-B2
Application number	US-201615547054-A
Country	US
Kind code	B2
Filing date	Aug 15, 2016
Priority date	Nov 5, 2015
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

The present invention discloses a refrigerator controlling method and system with a linear compressor. The method comprises: monitoring an environment temperature T of the refrigerator located in the environment comparing the environment temperature T with a preset environment temperature threshold T 0 ; if T is larger than T 0 , controlling a refrigerating unit and/or a heating unit in the refrigerator such that the refrigerator runs under a first operation condition; and if T is smaller than or equal to T 0 , controlling the refrigerating unit and/or the heating unit in the refrigerator such that the refrigerator runs under a second operation condition. When the linear compressor runs within predetermined time, a refrigeration amount of the linear compressor under the second operation condition is controlled to be larger than a refrigeration amount of the linear compressor under the first operation condition, such that a compartment of the refrigerator reaches a target temperature.

First claim

What is claimed is:

1. A refrigerator controlling method with a linear compressor, the method comprising:
monitoring an environment temperature T of the refrigerator located in the environment;
comparing the environment temperature T with a preset environment temperature threshold T 0 ;
if T is larger than T 0 , controlling a refrigerating unit and/or a heating unit in the refrigerator such that the refrigerator runs under a first operation condition; and
if T is smaller than or equal to T 0 , controlling the refrigerating unit and/or the heating unit in the refrigerator such that the refrigerator runs under a second operation condition;
wherein, when the linear compressor runs within predetermined time, controlling a refrigeration amount of the linear compressor under the second operation condition to be larger than a refrigeration amount of the linear compressor under the first operation condition, such that a compartment of the refrigerator reaches a target temperature;
wherein controlling the refrigeration amount of the linear compressor under the second operation condition to be larger than the refrigeration amount of the linear compressor under the first operation condition comprises:
in a case where a refrigerator load does not vary, controlling a refrigeration amount required by a freezing compartment of the refrigerator under the second operation condition to be larger than a refrigeration amount required by the freezing compartment of the refrigerator under the first operation condition.

2. The method of claim 1 , further comprising:
monitoring an operation status of the linear compressor;
when the operation status of the linear compressor becomes abnormal, changing the operation condition of the refrigerator so as to increase the refrigeration amount required by the freezing compartment of the refrigerator when the linear compressor runs within the predetermined time; and
after the operation status of the linear compressor becomes normal, setting a current operation condition of the refrigerator as the second operation condition.

3. The method of claim 1 , further comprising:
monitoring an operation status of the linear compressor;
when the operation status of the linear compressor becomes abnormal, changing the operation condition of the refrigerator so as to increase the refrigeration amount required by the freezing compartment of the refrigerator when the linear compressor runs within the predetermined time; and
after the operation status of the linear compressor becomes normal, setting a current operation condition of the refrigerator as a third operation condition, associating the third operation condition with the environment temperature T, and controlling the refrigerator to run under the third operation condition when the environment temperature is smaller than or equal to T.

4. The method of claim 1 , wherein controlling the refrigeration amount of the linear compressor under the second operation condition to be larger than the refrigeration amount of the linear compressor under the first operation condition comprises:
in a case where a refrigerator load does not vary, controlling a refrigeration amount per unit volume of a refrigerant in a freezing loop of the refrigerator under the second operation condition to be larger than a refrigeration amount per unit volume of the refrigerant in the freezing loop of the refrigerator under the first operation condition.

5. The method of claim 4 , further comprising:
monitoring an operation status of the linear compressor;
when the operation status of the linear compressor becomes abnormal, changing the operation condition of the refrigerator so as to increase the refrigeration amount per unit volume of the refrigerant in the freezing loop of the refrigerator; and
after the operation status of the linear compressor becomes normal, setting a current operation condition of the refrigerator as the second operation condition.

6. The method of claim 4 , further comprising:
monitoring an operation status of the linear compressor;
when the operation status of the linear compressor becomes abnormal, changing the operation condition of the refrigerator so as to increase the refrigeration amount per unit volume of a refrigerant in the freezing loop of the refrigerator; and
after the operation status of the linear compressor becomes normal, setting a current operation condition of the refrigerator as a third operation condition, associating the third operation condition with the environment temperature T, and controlling the refrigerator to run under the third operation condition when the environment temperature is smaller than or equal to T.

7. The method of claim 2 , wherein monitoring the operation status of the linear compressor comprises:
determining whether the linear compressor stops unexpectedly during its running within the predetermined time; and
if yes, taking the operation status of the linear compressor as abnormal.

8. A refrigerator controlling system with a linear compressor, the system comprising a temperature monitoring device and a main control board connected with the temperature monitoring device; wherein
the temperature monitoring device is configured to monitor an environment temperature T of the refrigerator located in the environment;
the main control board is configured to compare the environment temperature T with a preset environment temperature threshold T 0 ; and
the main control board is further configured to control a refrigerating unit and/or a heating unit in the refrigerator in such a way that, when T is larger than T 0 , the main control board controls the refrigerating unit and/or the heating unit in the refrigerator such that the refrigerator runs under a first operation condition, and when T is smaller than or equal to T 0 , the main control board controls the refrigerating unit and/or the heating unit in the refrigerator such that the refrigerator runs under a second operation condition;
wherein, when the linear compressor runs within predetermined time, a refrigeration amount of the linear compressor under the second operation condition is controlled to be larger than a refrigeration amount of the linear compressor under the first operation condition, such that a compartment of the refrigerator reaches a target temperature;
wherein the main control board is further configured to:
in a case where a refrigerator load does not vary, control a refrigeration amount required by a freezing compartment of the refrigerator under the second operation condition to be larger than a refrigeration amount required by the freezing compartment of the refrigerator under the first operation condition.

9. The system of claim 8 , wherein the main control board is further configured to:
monitor an operation status of the linear compressor;
when the operation status of the linear compressor becomes abnormal, change the operation condition of the refrigerator so as to increase the refrigeration amount required by the freezing compartment of the refrigerator when the linear compressor runs within the predetermined time; and
after the operation status of the linear compressor becomes normal, set a current operation condition of the refrigerator as the second operation condition.

10. The system of claim 8 , wherein the main control board is further configured to:
monitor an operation status of the linear compressor;
when the operation status of the linear compressor becomes abnormal, change the operation condition of the refrigerator so as to increase the refrigeration amount required by the freezing compartment of the refrigerator when the linear compressor runs within the predetermined time; and
after the operat

Assignees

• Qingdao Haier Joint Stock Co Ltd

Inventors

• Qi Feifei
• Zhu Xiaobing
• Liu Jianru
• Ji Lisheng
• Zhang Shufeng

Classifications

• F25D29/005 Primary

  Mounting of control devices · CPC title

• F04B49/065

  and making use of computers · CPC title

• F25B2400/073

  Linear compressors · CPC title

• F25D2400/34

  Temperature balancing devices · CPC title

• F25B2600/11

  Fan speed control · CPC title