Air door abnormity judgment method and refrigerator thereof

Abstract

The invention discloses an air door abnormity judgment method. The method comprises the following steps that 1, a refrigerator room temperature sensor collects temperature data of a refrigerator room; 2, the controller carries out data processing on the data collected by the temperature sensor, the set temperature of the compartment and the state of the air door; 3, the chamber temperature is detected, and if the chamber temperature is lower than the temperature set by the user, whether the air door is in a closed state or not is further judged; 4, if it is detected that the air door is in the closed state, whether the duration reaches the set time or not is detected, if it is detected that the air door is in the open state, the reset frequency is reset, the duration is reset, and the step 3 continues to be executed; 5, if it is detected that the duration time reaches the set time, the air door is reset once; and 6, after the air door is reset once, detecting whether the reset frequency of the air door is greater than 1 or not, if the reset frequency of the air door is greater than 1, sending out air door abnormity alarm information, and if the reset frequency of the air door is not greater than 1, resetting the duration time, and continuing to return to the step 3.

Description

Technical field:

[0001] The invention relates to a method for judging an abnormality of an air door and a refrigerator thereof, and belongs to the technical field of household appliances. Background technology:

[0002] In order to reduce costs, most of the dampers of existing air-cooled refrigerators adopt a structure without position feedback signals. When controlling the opening and closing of the damper, this structure uses a sufficient number of pulse steps to ensure that the damper can be opened or closed to the specified position. However, due to the lack of position feedback, when the damper switch is abnormal during use, it is impossible to judge, which will cause the room temperature of the refrigerator to be too low and freeze the items.

[0003] Therefore, it is necessary to improve the existing technology to solve the shortcomings of the existing technology. Summary of the invention:

[0004] The present invention is to solve the problems existing in the above-mentioned prior art and provide a damper abnormality judgment method and a refrigerator thereof, which can solve the problem of abnormal electric damper switch without position feedback.

[0005] The present invention adopts the following technical solution: a method for judging an abnormality of a damper, comprising the following steps:

[0006] Step 1: a temperature sensor and an electric damper are arranged in the refrigerator compartment, and the temperature sensor collects temperature data of the refrigerator compartment;

[0007] Step 2: A controller is also provided in the refrigerator, and the controller is connected to the electric damper and the temperature sensor through a wiring harness, and the controller processes the data collected by the temperature sensor, the set temperature of the compartment and the damper status;

[0008] Step 3: Detect the compartment temperature. If the compartment temperature is lower than the user-set temperature, further determine whether the damper is in a closed state;

[0009] Step 4: If the damper is detected to be in the closed state, check whether the duration has reached the set time. If the damper is detected to be in the open state, the reset times and duration are reset to zero, and the process returns to step 3.

[0010] Step 5: If it is detected that the duration reaches the set time, the damper is reset once;

[0011] Step 6: After the damper is reset once, it is detected whether the number of damper reset times is greater than the set number. If the number of damper reset times is greater than the set number, a damper abnormality alarm message is issued. If the number of damper reset times is not greater than the set number, the duration is reset to zero and the process returns to step 3.

[0012] Furthermore, in step 3, the temperature is set to -2°C.

[0013] Furthermore, the time in step 4 is set to 2 minutes.

[0014] Furthermore, the number of times in step 6 is set to 1.

[0015] The present invention also adopts the following technical solution: a refrigerator adopts the above-mentioned air door abnormality judgment method.

[0016] The present invention has the following beneficial effects: the method for determining an abnormality of the damper of the present invention can promptly determine an abnormality of the damper, give an alarm, and remind the user to perform repairs in a timely manner. Description of the drawings:

[0017] Figure 1 The figure is a flow chart of the method for determining air door abnormality according to the present invention. Specific implementation method:

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] The method for determining air door abnormality of the present invention specifically comprises the following steps:

[0020] Step 1: a temperature sensor and an electric damper are arranged in the refrigerator compartment, and the temperature sensor collects temperature data of the refrigerator compartment;

[0021] Step 2: A controller is also provided in the refrigerator, and the controller is connected to the electric damper and the temperature sensor through a wiring harness, and the controller processes the data collected by the temperature sensor, the set temperature of the compartment and the damper status;

[0022] Step 3: Detect the compartment temperature. If the compartment temperature is lower than a certain range of the user-set temperature (prioritized to be -2°C), further determine whether the damper is in a closed state.

[0023] Step 4: If the damper is detected to be in the closed state, then check whether the duration has reached a certain time (preferably 2 minutes). If the damper is detected to be in the open state, the reset times and duration are reset to zero, and the process returns to step 3.

[0024] Step 5: If it is detected that the duration reaches a certain time (preferably 2 minutes), the damper is reset once;

[0025] Step 6. After the damper is reset once, it is detected whether the number of damper reset times is greater than the set number (the preferred number is 1). If the number of damper reset times is greater than the set number, a damper abnormality alarm message is issued. If the number of damper reset times is not greater than the set number, the duration is reset to zero and the process returns to step 3.

[0026] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A method for determining an abnormality of a damper, characterized in that: The steps include: Step 1: a temperature sensor and an electric damper are arranged in the refrigerator compartment, and the temperature sensor collects temperature data of the refrigerator compartment; Step 2: A controller is also provided in the refrigerator, and the controller is connected to the electric damper and the temperature sensor through a wiring harness, and the controller processes the data collected by the temperature sensor, the set temperature of the compartment and the damper status; Step 3: Detect the compartment temperature. If the compartment temperature is lower than the user-set temperature, further determine whether the damper is in a closed state; Step 4: If the damper is detected to be in the closed state, check whether the duration has reached the set time. If the damper is detected to be in the open state, the reset times and duration are reset to zero, and the process returns to step 3. Step 5: If it is detected that the duration reaches the set time, the damper is reset once; Step 6: After the damper is reset once, it is detected whether the number of damper reset times is greater than the set number. If the number of damper reset times is greater than the set number, a damper abnormality alarm message is issued. If the number of damper reset times is not greater than the set number, the duration is reset to zero and the process returns to step 3.

2. The method for determining an abnormality of a damper according to claim 1, wherein: In step 3, the temperature was set to -2°C.

3. The method for determining an abnormality of a damper according to claim 2, wherein: In step 4, set the time to 2 minutes.

4. The method for determining an abnormality of a damper according to claim 3, wherein: In step 6, set the number of times to 1.

5. A refrigerator, characterized in that: A damper abnormality determination method as described in any one of claims 1 to 3 is adopted.

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