JPS63210583A - Automatic controller for refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic control device for refrigerators that eliminates the need for an inspection device to be attached to each refrigerator when performing a performance inspection of the refrigerator at a factory.

BACKGROUND OF THE INVENTION In recent years, the development of electronic technology for controlling refrigerators has been remarkable, and test runs of refrigerators unique to the time of shipment from the factory are being carried out.

An example of the conventional refrigerator automatic control device described above will be described below with reference to the drawings.

FIG. 3 is a block diagram of a conventional automatic control device, and FIG. 4 is an operation flowchart of the conventional automatic control device.

A compressor control circuit 1 controls the compressor of the refrigerator, and outputs a signal S1 to a first timer circuit 2 that counts the time until defrosting begins.

3 is a defrost control circuit that forcibly turns off the compressor and controls the defrost heater, which inputs the signal S2 from the first timer circuit 2 and outputs the signal S3 to the second timer circuit 4 that counts the defrost time. do.

The operation of the automatic control device configured as follows will be explained below using the operation flowchart shown in FIG.

First, when the conventional automatic control device is powered on, the compressor is controlled by the compressor control circuit 1 and outputs the signal S1 to the first timer circuit 2 in step 1. The time at this time is designated as TA. Next, in step 2, performance data at power-on is measured in advance by an inspection device attached to each refrigerator in addition to the automatic control device. Next, in step 3, the first timer circuit 2 uses the TA and a preset time (hereinafter referred to as T1).

), and if it satisfies formula 0, outputs signal S2,
Proceed to step 4; otherwise, proceed to step 1.

TA>T1...0 Next, in step 4, the defrost control circuit 3 forcibly turns off the compressor to control the defrost heater and inputs the signal S3 to the second timer circuit 4. The time at this time is designated as TB.

Next, in step 5, the performance data after defrosting is measured by an inspection device that is attached to each refrigerator in advance in addition to the automatic control device.

Next, in step 6, the second timer circuit compares TB with a preset time (hereinafter referred to as T2), and if the formula 0 is satisfied, proceed to step 1; otherwise,
Proceed with the logic to step 4.

TB>T2...During the cycle of operations such as 0 or more, the performance data after power-on and the performance data after defrost are installed in each refrigerator separately from the automatic control device. Measured by inspection equipment.

Problems to be Solved by the Invention However, the above configuration has the problem that it is necessary to install an inspection device for each refrigerator, resulting in a large amount of expense.

In view of the above problems, the present invention provides an automatic control device equipped with a control circuit capable of storing and outputting performance data of a refrigerator.

Means for Solving the Problems In order to solve the above-mentioned problems, the automatic control device for a refrigerator of the present invention has a first controller that stores performance data of the refrigerator after power-on and after defrosting. This device includes a second storage circuit and an output circuit that outputs the data.

Effect of the Invention The present invention has the above-described configuration, and without installing an inspection device for each refrigerator separately from the automatic control device of the refrigerator, by connecting an output device to output performance data after power-on and defrosting of the refrigerator. , can be collected.

Embodiment An automatic control device for a refrigerator according to an embodiment of the present invention will be described below.

FIG. 1 and FIG. 2 are a block diagram and an operation flowchart, respectively, of an embodiment of an automatic control device for a refrigerator according to the present invention.

5 is a first counting circuit that counts the number of times the compressor is operated ○N/○FF, and when the count reaches a specified number, inputs a signal S4 to a first storage circuit 6 that stores performance data of the refrigerator. A first control circuit 7 turns off the compressor and controls the defrost heater, and receives a signal S5 from the first storage circuit 6. 8 is a second counting circuit that counts the ON/OFF operation circuit of the compressor after defrosting, and a second counting circuit that inputs signal S6 from the first control circuit and stores performance data of signal S7 when the count reaches a specified number of times. input into the memory circuit 9 of. 10 is a second control circuit that stops all controls of the refrigerator;
The storage circuit inputs the signal S8 and outputs the signal S9 to the display circuit 11 which indicates that all refrigerator functions have been completed.

12 is the first. This output circuit outputs the performance data after power-on and after defrost stored in the second storage circuits 6 and 9, and receives the signal S1° from the display circuit.

An embodiment of the automatic control device of the present invention configured as described above will be explained using the operational flowchart of FIG. 2.

First, when the power is turned on, the number of ON/OFF operations of the compressor is counted in step a, and step b
The performance data of the refrigerator is stored in the first storage circuit 6. If the number of times counted in step a reaches 3 in step C, go to step d, otherwise step a
Proceed with logic.

Next, in step d, the first control circuit 7 turns off the compressor, controls the defrost heater, and maintains this state until the defrost is completed, and the defrost end signal S6 is input to the second counting circuit.

Next, in step e, turn on/off the compressor after defrosting.
The number of OFF operations is counted, and the performance data of the refrigerator is stored in the second storage circuit 9 in step f. If the number of times counted in step e becomes 2 in step q,
Go to step h; if less, proceed to step e.

At step h, all controls are stopped and the signal S9 is input to the display circuit 11. Display that step i is completed.

In step j, the data stored in steps b and f are output.

As described above, according to the present embodiment, the performance data of the refrigerator after power-on and defrost is stored and the data is output, so that an inspection device can be installed for each refrigerator at the time of shipping inspection of the refrigerator. This eliminates the need for testing, and the cost required for testing can be significantly reduced.

Effects of the Invention As described above, the present invention provides a memory circuit that stores the performance data of the refrigerator after power-on and defrost, and provides a circuit that outputs the stored data. There is no need to install an inspection device for each refrigerator, and the cost required for inspection can be significantly reduced.

[Brief explanation of the drawing]

1 and 2 are a block diagram and an operation flowchart, respectively, of an automatic control device for a refrigerator according to an embodiment of the present invention, and FIGS. 3 and 4 are a block diagram and an operation flowchart, respectively, of an automatic control device for a conventional refrigerator. be. 6...First count circuit, 6...First storage circuit, 7...First control circuit, 8...
...Second count circuit, 9...Second memory circuit, 1o...Second control circuit, 11...
...display circuit, 12...output circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] A first counting circuit that counts the number of ON/OFF operations of the compressor after the power is turned on; a first memory circuit that stores performance data after the refrigerator is turned on; and a first memory circuit that counts the number of ON/OFF operations of the compressor after the power is turned on. A first control circuit that controls the compressor and defrost heater by determining whether or not the predetermined number of times has been reached;
A second counting circuit that counts the number of N/OFF operations, a second memory circuit that stores post-defrost performance data of the refrigerator after defrosting, and a second memory circuit that counts the number of ON/OFF operations of the compressor after defrosting. The test control circuit includes a second control circuit that determines whether or not the refrigerator has stopped and stops all functions of the refrigerator, a display circuit that displays that all functions have stopped, and an output circuit that outputs stored data. An automatic control device for a refrigerator characterized by: