KR200162050Y1 - Diplay apparatus for abnormal status of a refrigerator - Google Patents

Abstract

The present invention relates to a failure display apparatus of a refrigerator, which allows an LCD display unit of a remote controller to know whether a refrigerator function is abnormal and an operation state.

Its configuration consists of a microcomputer with a built-in self-diagnosis program, a receiving unit receiving a signal for executing the micro-computing self-diagnosis program from the outside, and a refrigerator configured to send a result to the outside after performing the micro-communication self-diagnosis program. And a remote control transmitter for transmitting a signal for executing a self-diagnosis program to a receiver of a refrigerator by inputting a specific key, a remote controller receiver for receiving a self-diagnosis result transmitted from a transmitter of a refrigerator, and information received from the remote controller receiver. The remote controller is configured as a display unit for outputting the self-diagnosis results of the refrigerator, characterized in that output through the display unit of the remote controller.

Description

Fault indication device of the refrigerator

The present invention relates to a failure display device of the refrigerator, and more particularly, to a failure display device of the refrigerator so as to know the abnormality of the refrigerator function and the operation state through the LCD display of the remote controller.

Recently, due to the development of the sensor field and the semiconductor field, automation of various home appliances has been actively progressed, and accordingly, the functions of the home appliances are becoming complicated. The same applies in the field of refrigerators. In addition to employing a microprocessor from the control unit, various detection sensors detect the open / closed state of the door and the temperature of each chamber, and accordingly, the lamp, compressor, circulation fan, cold damper and It has a complicated control structure such as appropriately controlling the drive of the defrost heater.

As a result, it is very difficult to visually find a broken part of the refrigerator, and it is not easy for the general user to repair it. Therefore, the refrigerator is provided with a function for self-diagnosis so that when a failure occurs, the corresponding failure code is displayed so that a quick repair can be performed.

That is, the conventional refrigerator is provided with various detection sensors and safety devices so that the refrigeration cycle can be stably controlled. If an abnormal state is detected therefrom, the controller displays a corresponding fault code through an external display unit or stops the refrigeration cycle. In more detail, when the refrigerator breaks down, the A / S agent operates the breakdown confirmation key on the display panel so that the corresponding breakdown LED is lit to confirm the breakdown. In other words, when the A / S agent operates the failure confirmation key, the control unit includes a temperature sensor 5 for maintaining a proper internal temperature, a circulating fan motor for circulating cold air according to the command of the control unit 10, and a cold air control unit. It transmits a fault check command to dampers, defrost heaters, etc., detects a response from the corresponding component, determines whether there is a fault, and displays the fault code through the LED on the display panel.

However, the conventional fault code checking method using the fault display device of the refrigerator was very troublesome.

That is, in order to switch to the self-diagnosis mode to check the fault code, the fault check key must be operated according to the definition of the use of the key. At this time, in general, in order to prevent switching to the self-diagnosis mode by involuntary key operation, it is switched to the self-diagnosis mode only when two keys are pressed at the same time. Therefore, it is not easy to apply the signals to the microcomputer by operating two keys at the same time, and the switching signal to the self-diagnosis mode is applied to the microcomputer only after waiting for a predetermined time after operating the two keys simultaneously. Accordingly, there is a problem such as feeling the hassle of key operation when switching the self-diagnosis mode.

The present invention is to solve the above-mentioned problems, an object of the present invention is to provide a failure display device of the refrigerator to be able to easily check the failure and operating state of the refrigerator through a remote controller equipped with an LCD display device.

1 is a block diagram of a failure display device of a refrigerator according to the present invention;

2 is a schematic diagram of an LCD display applied to the present invention;

3 is a control flowchart of the present invention.

* Description of the symbols for the main parts of the drawings *

10: refrigerator 11: microcomputer 12: sensor unit

13: receiver 14: transmitter 20: remote controller

21: Key operation unit 22: Remote control transmitter 23: Remote control receiver

24: control unit 25: LCD display unit

The construction of the present invention for achieving the technical problem, a microcomputer with a built-in self-diagnostic program, a receiving unit for receiving a signal for performing the self-diagnostic program of the microcomputer from the outside, and after performing the self-diagnostic program of the microcomputer A remote control transmitter for transmitting a signal for executing a self-diagnosis program to a receiver of the refrigerator by inputting a specific key, and a self-diagnosis result transmitted from the transmitter of the refrigerator And a remote controller comprising a remote controller receiving unit for receiving and a display unit for outputting information received from the remote controller receiving unit, wherein the self-diagnosis result of the refrigerator is output through the display unit of the remote controller.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a fault display apparatus according to the present invention, FIG. 2 is a display unit of a remote controller according to the present invention, and FIG. 3 is a control flowchart of the present invention.

First, referring to Figure 1 described the main components of the present invention as follows.

The refrigerator 10 to which the fault display device is applied includes a microcomputer 11 performing an operation related to overall control of the system, a sensor unit 12 for sensing each component of the refrigerator, and a self-diagnosis execution signal by radio waves from the outside. A receiving unit 13 for receiving an input and a transmitting unit 14 for converting the result into a radio signal after outputting the self-diagnosis are output. In addition, the remote controller 20 to which the fault display device is applied transmits a specific radio signal by the key operation unit 21 and the key operation unit 21 for controlling the refrigerator to execute the self-diagnosis program of the refrigerator 10. Remote control unit 22 for receiving, the remote control unit 23 for receiving the self-diagnosis signal transmitted after the self-diagnosis of the refrigerator 10, and converts the received self-diagnosis signal into a digital signal through the LCD display unit 25 A remote control unit 24 for outputting is provided.

Of the above-mentioned components, the microcomputer 11 of the refrigerator transmits a failure check command to each sensor unit 12 when a self-diagnosis program is executed, detects a signal from the corresponding sensor, determines whether there is a failure, and A / S in case of failure. The failure area is displayed through the LCD of the display panel so that the personnel can check it. Further, the transmitter 14 converts the self-diagnosis result into a radio signal and sends it out.

And the sensor unit 12 includes a door sensor for detecting the opening or closing of the door, a temperature sensor for detecting the temperature inside and outside the temperature, a fan motor sensor for detecting the driving of the circulation fan for circulating cold air, Examples include damper sensors for detecting the operation of dampers to control the flow of cold air, thermo sensors for detecting the proper temperature state of compressors and defrost heaters, and ice makers and beverage dispensers according to development models. Sensors for detecting driving states of various deodorizers may be further provided.

The transmitter 14 and the receiver 13 are for transmitting and receiving an RF signal, which is a radio signal, and the electrical signal, which is a signal to be transmitted and received by the microcomputer 11 or the control unit 24, as a radio signal, It converts into a signal.

When the remote controller transmitter 22 manipulates the keys of the key operation unit 21 provided on the exterior of the remote controller, the remote controller transmitter 22 transmits a radio signal having a specific frequency set for each key. That is, when you want to know the high internal temperature, or when executing the self-diagnosis program, operating other functions, if you operate the corresponding key, the radio wave signal with the unique frequency is sent out to exchange data with the refrigerator 10. do.

The remote control receiver 23 receives the radio wave signal transmitted from the transmitter 14 of the refrigerator, converts it into an electrical signal, and then converts the signal into a digital signal to the controller 24.

As shown in FIG. 2, the LCD display unit 25 is to provide the state of the refrigerator 10 as image information, which is inputted in advance and information corresponding to the character information and the character information that appears when the power is applied to the refrigerator. It is divided into information that is received from (10) and displayed. As a result, the A / S agent can receive information such as the temperature in the refrigerator, the faulty part, and the operation state of the refrigerator.

Hereinafter, an operation process of the present invention will be described with reference to the above-described configuration unit and FIG. 3.

First, when a possibility of failure of the refrigerator 10 is derived due to a decrease in performance of the refrigerator 10 and other phenomena, the self-diagnostic key of the remote controller 20 is manipulated in order to confirm the failure location (S1). By operating the self-diagnostic key, the controller 24 transmits a self-diagnosis execution signal having a specific frequency to the refrigerator 10 through the remote controller transmitter 22 (S2). The receiver 13 of the refrigerator 10 receives the self-diagnosis execution signal, converts it into an electrical signal, and transmits the signal to the microcomputer 11. When the microcomputer 11 analyzes the received signal and determines that the self-diagnosis execution signal is executed, the microcomputer 11 executes the self-diagnosis program to check whether the sensor is malfunctioning, and also reads the internal and external temperatures (S3).

And microcomputer converts it into an electrical signal and transmits it to the transmitter. The transmitter converts the transmitted information into a radio signal and transmits it to the outside (S4).

The transmitted radio signal is transmitted to the remote controller 23 of the remote controller 20, and the remote controller 23 converts it into an electrical signal and then converts it into a digital signal and transmits it to the controller 24. The controller 24 analyzes the received signal and transmits it to the LCD display unit 25. Therefore, the information obtained through the self-diagnosis of the initial refrigerator can be checked through the remote controller 20.

According to the present invention as described in detail above, there is an effect that can easily check the operating state and internal temperature of the refrigerator, and the failure state.

In addition, in the case of the electronic refrigerator, when the receiver and the transmitter of the remote controller are installed, the display panel can be omitted, thereby reducing the manufacturing cost.

Claims (3)

A refrigerator comprising a microcomputer with a built-in self-diagnostic program, a receiving unit for receiving a signal for executing the micro- self-diagnostic program from the outside, and a transmitter for transmitting the result after performing the micro-diagnostic program of the microcomputer; A remote control transmitter for transmitting a signal for executing a self-diagnosis program to a receiver of the refrigerator by inputting a specific key, a remote controller receiver for receiving a self-diagnosis result transmitted from a transmitter of the refrigerator, and received from the remote controller receiver And a remote controller including a display unit for outputting information, wherein the self-diagnosis result of the refrigerator is output through the display unit of the remote controller. The method of claim 1, wherein the display unit LCD display device, characterized in that the failure display device of the refrigerator. The method of claim 2, The self-diagnosis information output to the LCD display device is a fault display device of the refrigerator, characterized in that the internal temperature, the fault portion, the operation state.