KR100219436B1 - Control method of a self test for a refrigerator - Google Patents

Abstract

The disclosed contents eliminate the test switch and the buzzer driving part which select the self-test function of the conventional refrigerator, and simplify the operation method by selecting the self-test function through the operation switch on the front of the refrigerator, and also reduce the production cost and shorten the production time. It relates to a self-test control method of a refrigerator to be made.

The present invention selects the self-test function through the operation switch provided in the operation switch input unit; The compressor is turned on when the operation switch is detected once after the self-test function is selected; Checking the compressor and turning off the compressor and turning on the freezer defrost heater when the operation switch is detected a second time; Checking the freezer defrost heater and turning on the fridge defrost heater when the operation switch is detected for the third time; In addition, if the operation switch is detected for the fourth time after checking the refrigerator defrost heater, the freezer compartment and the refrigerator compartment defrost heater are turned off to complete the self-test function.

Description

How to control the self test of the refrigerator

The present invention relates to a self-test control method of a refrigerator, and more particularly, to remove a test switch and a buzzer driver for selecting a self-test function of a conventional refrigerator, and to select a self-test function through an operation switch on the front of the refrigerator. It relates to a self-test control method.

In general, an evaporator and a fan are installed in a refrigerator (freezer and refrigerating chamber) of a refrigerator. The evaporator cools the surrounding air by heat exchange of refrigerant when the compressor is operated, and the fan is for forced circulation of the cooled air around the evaporator into the air. Therefore, the compressor and the fan are properly operated in accordance with the temperature change, thereby maintaining the temperature in the refrigerator.

Recently, in order to improve the performance of freezing and refrigerating, each evaporator is attached to the freezer compartment and the refrigerating compartment, and each of the evaporators is provided with a defrost heater to remove defrost generated on its surface.

In addition, a refrigerator that is widely used in general is an electronic control method that performs temperature control and defrost function by automatically controlling various refrigerator loads such as the compressor, heater, and fan by using various temperature sensors together with micom. It is driving.

1 is a control block diagram illustrating such a conventional refrigerator, and FIG. 2 is a flowchart illustrating a self-test control method of a conventional refrigerator.

As shown in the drawing, the operation switch input unit 1 inputs various operation commands of the user, and the microcomputer 3 receives the load driving unit 4 and the display unit 5 which will be described later according to the command received from the operation switch input unit 1. And the operation of the buzzer driver 6 and the like.

In addition, the test switch 2 is installed by being covered with a cover or the like on the top or the rear of the refrigerator (not shown), and is operated by a user to perform a self test function of various loads of the refrigerator through the microcomputer 3.

In addition, the aforementioned load driver 4 is composed of various load circuits such as a compressor, a defrost heater, and a fan controlled by the microcomputer 3, and the display unit 5 controls and loads the microcontroller 3 of the microcomputer 3. The operation of 4) is displayed on the front of the refrigerator to inform the user of the state.

In addition, the buzzer driver 6 displays the abnormality as a sound when the self-test of the load driver 4 is performed by the microcomputer 3 by the selection of the test switch 2.

In the conventional refrigerator configured as described above, in the self test control method, as shown in FIG. 2, when the test switch 2 is first pressed by the user, the microcomputer 3 detects the test switch 2. At this time, when the test switch 2 is detected once, the microcomputer 3 turns on the compressor through the load driving unit 4 to check the operation state of the compressor (S1 to S2).

Thereafter, the microcomputer 3 detects whether the test switch 2 is pressed again, that is, when the test switch 2 is detected twice, the microcomputer 3 turns on the compressor whose operation state is checked. In addition to turning it off, the defrosting heater of the load driving section 4 is turned on to check for abnormalities (S3 to S5).

After that, when the test switch 2 is detected three times, the microcomputer 3 turns on the defrost heater of the load driving unit 4 to check whether there is any abnormality (S6 to S7), and the test switch 2 to 4 When detected, the freezer compartment defrost heater and the refrigerating compartment defrost heater are turned off to complete the self-test function of checking whether there are any abnormalities in the load driver 4, that is, the various load circuits included in the load driver 4 ( S8 to S10).

Here, the buzzer driver 6 generates a warning sound by the microcomputer 3 when an abnormality occurs in each inspection step so that the user recognizes the abnormality.

However, in order to perform a self-test through the self-test control method of the conventional refrigerator, first, a test switch separately provided in the refrigerator must be operated. The test switch is operated by opening a cover surrounding the upper or rear side of the refrigerator. There was a problem that the operation is very uncomfortable.

In addition, since the above-described test switch and buzzer driving unit are separately provided to allow the user to recognize the abnormality and the abnormality of the self-test, there is another problem in that the production cost increases and the assembly process increases, resulting in a longer production time.

Accordingly, an object of the present invention for solving such a problem is to delete the test switch and the buzzer driving unit for selecting the self-test function of the conventional refrigerator, and to select the self-test function through the operation switch on the front of the refrigerator. It is to provide a method of controlling the self-test of the refrigerator to simplify and reduce the production cost and production time.

1 is a control block diagram showing a conventional refrigerator,

2 is a flowchart illustrating a method for controlling a self-test of a conventional refrigerator;

3 is a control block diagram showing a refrigerator according to the present invention;

4 is a view showing a display panel installed on the front of the refrigerator of the present invention;

5 is a flowchart illustrating a preferred embodiment of a method for controlling a self test of a refrigerator according to the present invention.

Explanation of symbols on the main parts of the drawings

10: operation switch input unit 11: rapid freezing switch

12: rapid refrigerating switch 13: refrigerating chamber temperature control switch

14: freezer compartment temperature control switch 20: microcomputer

30: load driving unit 40: display unit

41: display panel

In order to achieve the above object, a feature of the self-test control method of the refrigerator according to the present invention includes a first process of selecting a self-test function through an operation switch provided in an operation switch input unit and displaying the same through a display unit; A second step of turning on the compressor and displaying it through a display unit when the operation switch is detected once after the self-test function is selected by the first step; A third step of checking the compressor by the second step and turning off the compressor and turning on the freezer defrost heater when the operation switch is detected a second time and displaying the same through a display unit; A fourth step of checking the freezer compartment defrost heater by the third process and turning on the refrigerating compartment defrost heater and displaying it through the display unit when the operation switch is detected for the third time; And a fifth process of turning off the freezer compartment and the refrigerating compartment defrost heater and initializing the display unit when the operation switch is detected for the fourth time after checking the refrigerating compartment defrost heater by the fourth process.

In addition, the first process allows the self-test function to be selected through one operation switch or one or more operation switches, and the display unit blinks a predetermined number of times to indicate that the self-test function is selected.

In addition, it is preferable that the second to fourth processes turn on only the selected light emitting elements of the display unit so that the current load is checked.

Hereinafter, a preferred embodiment of a self-test control method of a refrigerator according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a control block diagram showing a refrigerator according to the present invention, Figure 4 is a view showing a display panel installed on the front of the refrigerator of the present invention.

As shown in the drawing, the operation switch input unit 10 inputs various operation commands of the user, and the microcomputer 20 receives the load driving unit 30 and the display unit 40 which will be described later according to the command received from the operation switch input unit 10. Control the operation of

In addition, the above-described operation switch input unit 10 is operated by the user's selection to perform the self-test function of the refrigerator load driver 30 through the microcomputer 20.

Here, the aforementioned load driver 30 is composed of various loads such as a compressor, a defrost heater, and a fan controlled by the microcomputer 20, and the display unit 40 controls the operation of the load driver 30. By displaying on the front, the operation status and self test status are informed to the user.

In addition, the above-described operation switch input unit 10 and the display unit 40 is preferably formed together on the display panel 41 provided on the front of the refrigerator as shown in FIG.

Here, reference numerals 11 to 14 denote a quick freezing switch, a quick freezing switch, a freezer compartment temperature control switch and a freezer compartment temperature control switch, respectively, as operation switches, and the display unit 40 is turned on at a position of weakness in the steel at a temperature inside the refrigerator. It consists of a light emitting element.

5 is a flowchart illustrating a preferred embodiment of a method for controlling a self test of a refrigerator according to the present invention.

If described in more detail with reference to Figure 5 the function of the present invention configured as follows.

First, when the user selects the self-test function through the operation switch provided in the operation switch input unit 10, the microcomputer 20 performs the first process of displaying this through the display unit 40 (S101 to S102).

Here, the operation switch input unit 10 allows the self-test function to be selected through one operation switch or one or more operation switches combined. That is, as shown in FIG. 4, when the freezer compartment temperature control switch 11 and the refrigerator compartment temperature control switch 12 are simultaneously pressed for 5 seconds, the microcomputer 20 determines that the self test function is selected and displays the display unit. 40 flashes a predetermined number of times to indicate that the self-test function is selected.

Subsequently, after the self-test function is selected by the first process, for example, when the freezer compartment temperature control switch 14 is detected once, the compressor of the load driver 30 is turned on and the display unit 40 turns on the compressor. A second process of displaying is performed, wherein the user is notified that the compressor is being driven by blinking a light emitting element provided at a strong position of the display unit (S103 to S105).

In addition, after checking the compressor by the second process, when the operation switch, that is, the freezer compartment temperature control switch 14 is detected for the second time, the compressor is turned off and the freezer compartment defrost heater is turned on through the display unit 40. A third process of displaying this is performed (S106 to S109).

At this time, the display unit 40 preferably flashes the light emitting element provided at the intermediate position to inform the user that the defrost heater of the load driving unit 30 is turned on.

In addition, after checking the freezer compartment defrost heater by the third process, when the operation switch, that is, the freezer compartment temperature control switch 14 is detected for the third time, a fourth unit for turning on the refrigerating compartment defrost heater and displaying it through the display unit 40. The process is performed (S110 to S112).

Here, it is preferable that the display unit 40 notifies the user that the refrigerator compartment defrost heater of the load driving unit 30 is turned on by blinking the light emitting element provided at the weak position.

Thereafter, after checking the refrigerating compartment defrost heater by the fourth process, when the operation switch, that is, the freezer compartment temperature control switch 14 is detected for the fourth time, the freezer compartment and the refrigerating compartment defrost heater of the load driving unit 30 are turned off and the display unit 40 is removed. ) To perform the fifth process of completing the self-test function (S113 to S116).

In the second to fourth processes, the light emitting device of the display unit 40, that is, only one position of the steel is turned on so that the load (compressor and defrost heater) being checked can be known. In addition to the freezer compartment temperature control switch 14, any one of the rapid freezing switch 11, the quick freezer switch 12, and the refrigerator compartment temperature control switch 13 may be used.

The above description is only one embodiment of the present invention, and can be changed as many as possible within the scope of the constitution of the present invention.

As described above, according to the self-test control method of the refrigerator of the present invention, by selecting and operating the self-test function through the operation switch input unit on the front of the refrigerator, the user's operation method is very simplified.

In addition, the operation switch input unit and the display unit display the user's selection and abnormality of the self-test function, thereby eliminating the test switch and the buzzer driving unit described above, and thus reducing the production cost and simplifying the assembly process. It also works.

Claims (4)

A first step of selecting a self-test function through an operation switch provided in the operation switch input unit and displaying the self test function through the display unit; A second step of turning on the compressor and displaying it through a display unit when the operation switch is detected once after the self-test function is selected by the first step; A third step of checking the compressor by the second step and turning off the compressor and turning on the freezer defrost heater when the operation switch is detected a second time and displaying the same through a display unit; A fourth step of checking the freezer compartment defrost heater by the third process and turning on the refrigerating compartment defrost heater and displaying it through the display unit when the operation switch is detected for the third time; And After checking the refrigerator compartment defrost heater by the fourth process, if the operation switch is detected for the fourth time, the refrigerator comprises a fifth process of turning off the freezer compartment and the refrigerator compartment defrost heater and initializing the display unit to complete the self-test function. Self test control method. The method of claim 1, wherein the first process comprises selecting a self test function through one operation switch or one or more operation switches. The method of claim 1, wherein the first step of the display unit blinks a predetermined number of times to indicate that the self test function is selected. The method of claim 1, wherein the second to fourth processes light up only the selected light emitting elements of the display unit so as to know a load being checked.

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