CN-122015410-A - Refrigerator, fault identification method and device of refrigerating system of refrigerator and storage medium

CN122015410ACN 122015410 ACN122015410 ACN 122015410ACN-122015410-A

Abstract

The application provides a refrigerator and a fault identification method, device and storage medium of a refrigerating system of the refrigerator, wherein the refrigerating system comprises a compressor and an evaporator, the fault identification method comprises the steps of controlling the compressor to operate, obtaining inlet temperature and outlet temperature of the evaporator, determining that a first fault type occurs in the refrigerating system of the refrigerator when the difference value between the outlet temperature and the inlet temperature is larger than or equal to a first preset value and lasts for a first preset duration, and/or determining that a second fault type occurs in the refrigerating system of the refrigerator when the difference value between the outlet temperature and the inlet temperature is between a second preset value and a third preset value and is smaller than a fourth preset value, wherein the first preset value is larger than the fourth preset value, the second preset value is larger than the third preset value and is smaller than the current environment temperature, and/or determining that a third fault type occurs in the refrigerating system of the refrigerator when the outlet temperature and the inlet temperature are larger than the second preset value.

Inventors

LI QUANXING
YANG TAO
YAO CHUANHAO
CHEN JIAQUAN

Assignees

TCL家用电器（合肥）有限公司

Dates

Publication Date: 20260512
Application Date: 20260228

Claims (10)

1. A fault identification method for a refrigerating system of a refrigerator is characterized in that the refrigerating system comprises a compressor and an evaporator, and comprises the following steps: controlling the operation of the compressor; Acquiring the inlet temperature and the outlet temperature of the evaporator; when the difference between the outlet temperature and the inlet temperature is greater than or equal to a first preset value and lasts for a first preset duration, determining that a first fault type occurs in the refrigerator refrigerating system, and/or Determining that a second fault type occurs in the refrigerator refrigeration system when the outlet temperature and the inlet temperature are between a second preset value and a third preset value and the difference between the outlet temperature and the inlet temperature is smaller than a fourth preset value, wherein the first preset value is larger than the fourth preset value, the second preset value is larger than the third preset value and the second preset value is smaller than the current environment temperature, and/or And when the outlet temperature and the inlet temperature are larger than a second preset value, determining that a third fault type occurs in the refrigerator refrigerating system.
2. The fault identification method of claim 1, wherein the fault identification method comprises: judging whether the outlet temperature and the inlet temperature are larger than a second preset value or not; If the outlet temperature and the inlet temperature are not greater than a second preset value, judging whether the difference value between the outlet temperature and the inlet temperature is smaller than a fourth preset value; If the difference between the outlet temperature and the inlet temperature is not smaller than a fourth preset value, judging whether the difference between the outlet temperature and the inlet temperature is larger than or equal to a first preset value.
3. The fault identification method of claim 2, wherein the fault identification method further comprises: and if the difference between the outlet temperature and the inlet temperature is smaller than the fourth preset value, judging whether the outlet temperature and the inlet temperature are between a second preset value and a third preset value.
4. The fault identification method as claimed in claim 1, wherein said obtaining an inlet temperature and an outlet temperature of said evaporator comprises: After determining that the compressor is actively started, an inlet temperature and an outlet temperature of the evaporator are obtained.
5. The fault identification method of claim 1, wherein the fault identification method further comprises: and after the difference value between the outlet temperature and the inlet temperature is larger than or equal to a first preset value for the first time, increasing the acquisition frequency of the outlet temperature and the inlet temperature of the evaporator.
6. The method of claim 1 or 5, wherein the method further comprises determining that the refrigerator cooling system has a first type of fault if the frequency of occurrence of the difference between the outlet temperature and the inlet temperature greater than or equal to a first preset value exceeds a set frequency within a second preset time period, wherein the second preset time period is greater than the first preset time period.
7. The fault identification method of claim 1, wherein the fault identification method further comprises: Acquiring an ambient temperature; and determining the second preset value according to the ambient temperature.
8. A fault identification device of a refrigerator refrigerating system is characterized in that the refrigerating system comprises a compressor and an evaporator, and the fault identification device comprises: The control module is used for controlling the operation of the compressor; the acquisition module is used for acquiring the inlet temperature and the outlet temperature of the evaporator; The refrigerator refrigerating system comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining that a first fault type occurs in the refrigerator refrigerating system when the difference value between the outlet temperature and the inlet temperature is larger than or equal to a first preset value and lasts for a preset time period, and/or determining that a second fault type occurs in the refrigerator refrigerating system when the difference value between the outlet temperature and the inlet temperature is between a second preset value and a third preset value and is smaller than a fourth preset value, wherein the first preset value is larger than the fourth preset value, the second preset value is larger than the third preset value and is smaller than the current environment temperature, and/or determining that a third fault type occurs in the refrigerator refrigerating system when the outlet temperature and the inlet temperature are larger than the second preset value.
9. A refrigerator characterized by comprising a controller for performing the fault identification method of the refrigerator refrigeration system of any one of claims 1 to 7.
10. A computer-readable storage medium, having stored thereon a computer program, the computer program being loaded by a processor to perform the steps in the fault identification method of a refrigerator refrigeration system of any one of claims 1 to 7.

Description

Refrigerator, fault identification method and device of refrigerating system of refrigerator and storage medium Technical Field The present application relates to the field of refrigerators, and in particular, to a method, an apparatus, and a storage medium for identifying faults in a refrigerator and a refrigeration system thereof. Background With the continuous development of science and technology, refrigerators have been digitally and intelligently upgraded to match user demands. The refrigerator refrigeration system is an important component of the refrigerator to achieve its function. The refrigerator refrigerating system comprises a compressor, a condenser, a throttling device and an evaporator, and a refrigerant pipeline connected among the compressor, the condenser, the throttling device and the evaporator. The refrigerant pipeline flows a refrigerant. After the refrigerator is assembled, a commercial inspection of the refrigeration system is required. Since the business inspection stage is applied to the production stage, it is difficult to inspect the refrigerator for faults occurring during use. For this reason, how to identify the failure of the refrigeration system of the refrigerator at the stage of use becomes a technical problem to be solved in the art. Disclosure of Invention The embodiment of the application provides a refrigerator, a fault identification method and device of a refrigerating system of the refrigerator and a storage medium, and aims to identify faults of the refrigerating system of the refrigerator in a using stage. In a first aspect, the application provides a fault identification method for a refrigeration system of a refrigerator, wherein the refrigeration system comprises a compressor and an evaporator, and the fault identification method comprises the following steps: controlling the operation of the compressor; Acquiring the inlet temperature and the outlet temperature of the evaporator; when the difference between the outlet temperature and the inlet temperature is greater than or equal to a first preset value and lasts for a first preset duration, determining that a first fault type occurs in the refrigerator refrigerating system, and/or Determining that a second fault type occurs in the refrigerator refrigeration system when the outlet temperature and the inlet temperature are between a second preset value and a third preset value and the difference between the outlet temperature and the inlet temperature is smaller than a fourth preset value, wherein the first preset value is larger than the fourth preset value, the second preset value is larger than the third preset value and the second preset value is smaller than the current environment temperature, and/or And when the outlet temperature and the inlet temperature are larger than a second preset value, determining that a third fault type occurs in the refrigerator refrigerating system. Optionally, the fault identification method includes: judging whether the outlet temperature and the inlet temperature are larger than a second preset value or not; If the outlet temperature and the inlet temperature are not greater than a second preset value, judging whether the difference value between the outlet temperature and the inlet temperature is smaller than a fourth preset value; If the difference between the outlet temperature and the inlet temperature is not smaller than a fourth preset value, judging whether the difference between the outlet temperature and the inlet temperature is larger than or equal to a first preset value. Optionally, the fault identification method further includes: and if the difference value between the outlet temperature and the inlet temperature is smaller than the fourth preset value, judging that the outlet temperature and the inlet temperature are between a second preset value and a third preset value. Optionally, the obtaining the inlet temperature and the outlet temperature of the evaporator includes: After determining that the compressor is actively started, an inlet temperature and an outlet temperature of the evaporator are obtained. Optionally, the fault identification method further includes: and after the difference value between the outlet temperature and the inlet temperature is larger than or equal to a first preset value for the first time, increasing the acquisition frequency of the outlet temperature and the inlet temperature of the evaporator. Optionally, the fault identification method further comprises determining that the refrigerator refrigerating system has a first fault type if the occurrence frequency of the difference value between the outlet temperature and the inlet temperature is greater than or equal to a first preset value exceeds a set frequency within a second preset time period, wherein the second preset time period is longer than the first preset time period. Optionally, the fault identification method further comprises the steps of obtaining an ambient te