JPH09145210A - Freezer and refrigerator with automatic ice making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid a time required for an ice making operation of one time caused by a stopped operation of a compressor from being extended. SOLUTION: This freezer and refrigerator has an automatic ie making machine in which water is supplied to an ice making pan 12 arranged in an upper stage freezing chamber 2, an automatic removal of ice is carried out when a temperature of the ice making pan detected by an ice making pan temperature sensor 15 becomes less than an ice making completion temperature and is constructed such that a compressor 5 is operated or stopped under a comparison between a temperature of operation/stopped state of the compressor and a temperature of the freezing temperature. In this case, a temperature of operation/stopped state of the compressor is decreased down to a value until a temperature of the ice making pan detected by the ice making pan temperature sensor 15 becomes less than an ice making completion temperature and then an operating efficiency of the compressor 5 is increased during the ice making operat i on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freezer-refrigerator equipped with an automatic ice maker that automatically performs water supply and ice removal.

[0002]

2. Description of the Related Art A freezer-refrigerator has a compressor of a refrigerating cycle for cooling a freezer compartment. This compressor is detected by a compressor operating / stop temperature determined by a set temperature of the freezer compartment and a freezer compartment temperature sensor. The start / stop is controlled by comparison with the freezer temperature.

In this type of freezer-refrigerator, water is supplied to an ice tray in the freezer compartment, and when the ice tray temperature detected by the ice tray temperature sensor falls below the ice making completion temperature, automatic ice removal is performed. Some have an ice making machine, which is disclosed in, for example, Japanese Patent Laid-Open No. 6-37145.

Next, a general ice making operation in a conventional refrigerator with an automatic ice making machine will be described with reference to FIG. First, in step S100, the water supply operation is performed on the ice tray, and after the water supply is completed, the process proceeds to step S101, and the completion of ice making is monitored by determining whether the freezer compartment temperature detected by the freezer compartment temperature sensor is equal to or lower than the ice making completion temperature. . When the completion of ice making is completed, in step S102, ice detection is performed by determining whether the amount of ice storage in the ice storage box is less than or equal to a predetermined value, and if ice removal is permitted, the ice removal operation is performed in step S103. Complete one automatic ice making.

[0005]

In the conventional refrigerator-freezer with an automatic ice maker, the operation of the compressor is stopped by the operation of the compressor.
By comparing the stop temperature and the freezing room temperature detected by the freezing room temperature sensor, the freezing room temperature detected by the freezing room temperature sensor is stopped because the operation is performed independently of the operation of the automatic ice making machine. When the temperature becomes lower than the temperature, the operation of the compressor is stopped regardless of the temperature just before the ice tray temperature detected by the ice tray temperature sensor reaches the ice making completion temperature or lower. If the operation of the compressor is stopped just before the completion of ice making, the ice making is not completed immediately, but the ice making is completed only after the compressor is restarted.

After this, the compressor restarts operation.
If the freezing room temperature detected by the freezing room temperature sensor again becomes equal to or higher than the compressor operating temperature and the time until the freezing room temperature becomes equal to or higher than the compressor operating temperature is long, one ice-making operation is performed accordingly. It will take a long time.

For this reason, when the operation of the compressor is stopped at the same timing as described above, the ice making time becomes long, the number of ice making times per day by the automatic ice making machine is reduced, and the ice is said to be insufficient. The problem arises.

The present invention has been made in order to solve such a problem, and avoids that the time required for one ice making operation is prolonged by stopping the operation of the compressor, and the automatic ice making machine makes one day. It is an object of the present invention to obtain a freezer-refrigerator with an automatic ice maker, which is improved so that the number of times of ice making does not decrease and the shortage of ice does not occur.

[0009]

In order to achieve the above-mentioned object, a freezer-refrigerator with an automatic ice maker according to the present invention is supplied with water to an ice tray placed in a freezer compartment and detected by an ice tray temperature sensor. It has an automatic ice maker that automatically removes ice when the ice tray temperature becomes equal to or lower than the ice making completion temperature, and the freezer compartment is compared by comparing the compressor operating / stop temperature and the freezer compartment temperature detected by the freezer compartment temperature sensor. In the freezer-refrigerator with an automatic ice maker in which the compressor of the refrigeration cycle for cooling is operated / stopped, only when it is determined that water has entered the ice tray after the water has been supplied to the ice tray, the ice tray temperature sensor The control means for lowering the operation / stop temperature of the compressor until the temperature of the ice tray according to 1. becomes equal to or lower than the ice making completion temperature.

In the freezer-refrigerator with an automatic ice maker according to the present invention, when water is supplied to the ice tray, the temperature of the ice tray by the ice tray temperature sensor becomes equal to or lower than the ice making completion temperature, that is, the compressor operation / stop temperature during ice making. Will decrease and the operating rate of the compressor will increase.

A freezer-refrigerator with an automatic ice-making machine according to the next invention supplies water to an ice-making tray placed in a freezing chamber, and automatically releases the ice-making tray when the ice-making tray temperature detected by an ice-making tray temperature sensor falls below the ice making completion temperature. An automatic ice making machine for ice is provided, and the compressor of the refrigeration cycle for cooling the freezer compartment is operated / stopped by comparing the compressor operation / stop temperature and the freezer compartment temperature detected by the freezer compartment temperature sensor. In a freezer-refrigerator with an automatic ice maker, the outside temperature sensor that detects the outside temperature and the outside temperature sensor only detect when the ice tray is filled with water and then the ice tray is filled with water. And a control means for lowering the operation / stop temperature of the compressor until the ice tray temperature by the ice tray temperature sensor becomes equal to or lower than the ice making completion temperature when the outside temperature is equal to or higher than a predetermined value. It is those who are.

In the refrigerator with an automatic ice maker according to the present invention, when water is supplied to the ice tray, if the outside temperature detected by the outside temperature sensor is equal to or higher than a predetermined value, the ice tray temperature by the ice tray temperature sensor is used. Is below the ice making completion temperature, that is, during the ice making under high outside air temperature such as in summer, the compressor operating / stopping temperature is lowered and the operating rate of the compressor is increased.

In a refrigerator with an automatic ice maker according to the next invention, water is supplied to the ice tray placed in the freezer compartment, and when the ice tray temperature detected by the ice tray temperature sensor becomes equal to or lower than the ice making completion temperature, it is automatically separated. An automatic ice making machine for ice is provided, and the compressor of the refrigeration cycle for cooling the freezer compartment is operated / stopped by comparing the compressor operation / stop temperature and the freezer compartment temperature detected by the freezer compartment temperature sensor. In a freezer-refrigerator with an automatic ice making machine, a timer that measures the elapsed time from that point and a time measurement value by the timer only when it is determined that the water supply operation for the ice tray has been completed and water has entered the ice tray. If the ice tray temperature by the ice tray temperature sensor is not below the ice making completion temperature at the time when the predetermined value is reached, the ice tray temperature by the ice tray temperature sensor is below the ice making completion temperature. In which and a control means for reducing the operating / stop temperature of the compressor until the.

In the freezer-refrigerator with an automatic ice maker according to the present invention, the elapsed time from the time when the water supply operation to the ice tray is completed is measured by the timer, and even if a predetermined time has elapsed after the completion of the water supply, the ice tray with the ice tray temperature sensor is used. If the temperature does not fall below the ice making completion temperature, that is, if the time required for ice making is long due to a large load in the refrigerator,
Compressor operation / shutdown temperature decreases until ice making is completed, and compressor operation rate increases.

In the freezer-refrigerator with an automatic ice maker according to the next invention, water is supplied to the ice tray in the freezer compartment, and when the ice tray temperature detected by the ice tray temperature sensor becomes equal to or lower than the ice making completion temperature, it is automatically separated. An automatic ice making machine for ice is provided, and the compressor of the refrigeration cycle for cooling the freezer compartment is operated / stopped by comparing the compressor operation / stop temperature and the freezer compartment temperature detected by the freezer compartment temperature sensor. In an automatic refrigerator with an automatic ice maker, only when it is determined that water has entered the ice tray after water has been supplied to the ice tray, the freezer compartment until the ice tray temperature by the ice tray temperature sensor falls below the ice making completion temperature It has a control means for continuously operating the compressor regardless of the temperature of the freezer compartment detected by the temperature sensor.

In the freezer-refrigerator with an automatic ice maker according to the present invention, when water is supplied to the ice tray, the temperature of the ice tray by the ice tray temperature sensor becomes equal to or lower than the ice making completion temperature, that is, the compressor keeps the temperature of the freezer room during ice making. It is operated continuously regardless of.

[0017]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

(Embodiment 1) FIG. 1 shows the entire structure of a freezer-refrigerator with an automatic ice maker. The freezer-refrigerator with an automatic ice maker has a refrigerating compartment 1, an upper freezing compartment 2 and a lower freezing compartment 3
And a vegetable compartment 4, and cold air is generated by a refrigeration cycle including a compressor 5 and a cooler 6, and this cold air is cooled by an internal fan 7 to a refrigerating compartment 1, an upper freezing compartment 2, a lower freezing compartment 3, It is sent to each of the vegetable compartments 4 in a circulating manner.

The compressor 5 is controlled to be operated / stopped by comparing the compressor operation / stop temperature determined by the set temperature of the freezer compartment with the freezer compartment temperature detected by the freezer compartment temperature sensor 8. In this embodiment, the freezer compartment temperature sensor 8 is
It is arranged in the upper freezing compartment 2 and detects the temperature in the upper freezing compartment 2.

An automatic ice making machine is incorporated in this refrigerator-freezer. The automatic ice machine includes a water supply tank 9 arranged in the refrigerating compartment 1, a water supply solenoid valve 10 and a water supply solenoid valve 10 in the upper freezing compartment 2 which opens and closes the water supply tank 9 to supply water to the water supply pipe 11. An ice tray 12 supplied from the ice tray 12, an automatic ice making motor 13 that drives the ice tray 12 upside down to perform an ice removing operation, and an ice storage box 1 for storing ice released from the ice tray 12
4 and an ice tray temperature sensor 1 for detecting the temperature of the ice tray 12
5 and a lever type ice detecting sensor 16 for detecting the amount of ice stored in the ice storage box 14 by the bulk amount.

FIG. 2 shows a control system of a refrigerator / freezer with an automatic ice maker. This control system is a microcomputer 17
have. The microcomputer 17 stores a program for controlling the entire refrigerator and performs so-called microcomputer control for compressor operation and automatic ice making.

The microcomputer 17 inputs the compressor operating / stopping temperature from the compressor operating / stopping temperature setting device 18, and the compressor set by the compressor operating / stopping temperature setting device 18 when not in ice making. By comparing the operating / stopping temperature (for example, -15 ° C / -21 ° C) with the freezing chamber temperature detected by the freezing chamber temperature sensor 8, the compressor operating / stopping command is output to the drive circuit 19 and the ice is being produced. In this case, the compressor operation / stop temperature set by the compressor operation / stop temperature setter 18 is used to obtain a predetermined value (for example, 2 de
g) Drive circuit 1 by comparing low compressor run / stop temperature with freezer temperature detected by freezer temperature sensor 8.
Outputs the compressor operation / stop command to 9.

The compressor operation / stop temperature set in the compressor operation / stop temperature setter 18 is a compressor operation / stop temperature determined by the set temperature of the freezer compartment. The compressor operation / stop temperature setting device 18 can be implemented as software by a program executed by the microcomputer 17.

The microcomputer 17 outputs, to the drive circuit 19, a series of sequence control commands of water supply-ice detection-ice release for automatic ice making. That is, at the time of water supply, the water supply solenoid valve 10 is opened for a certain period of time, and the ice tray temperature sensor 15
Completion of water supply is judged by the ice tray temperature detected by. After the water supply is completed, the completion of ice making is determined by the ice tray temperature detected by the ice tray temperature sensor 15, and at the time of the completion of ice making, the amount of ice storage in the ice storage box 14 is checked from the lever descent angle of the lever type ice detection sensor 16, and the ice storage box 14 If there is an ice storage margin, the operation shifts to the ice removing operation, and the automatic ice making motor 13 is driven. As a result, the ice tray 12 is twisted, and the ice in the ice tray 12 is released and falls into the ice storage box 14.

Further, after the water is supplied to the ice tray 12, it is assumed that the ice tray temperature sensor 15 is in the ice making state until the ice tray temperature becomes equal to or lower than the ice making completion temperature. To do.

FIG. 3 shows a processing flow of automatic ice making in this embodiment. First, in step S1, the electromagnetic valve 10 for water supply is opened to supply water to the ice tray 12,
Determine the completion of water supply in 2. This completion of water supply is determined by whether or not the ice tray temperature detected by the ice tray temperature sensor 15 has risen to a preset water supply completion temperature or higher.

When the water supply is completed, the operating / stop temperature of the compressor 5 is a steady value of -15 ° C / -21 in step S3.
2 deg. Below each ° C, then when the ice tray temperature detected by the ice tray temperature sensor 15 in step S4 falls below the ice making completion temperature, it is determined that the ice making is completed, and in step S5, the compressor 5 is operated / stopped. Restore the temperature.

Then, in step S6, it is determined based on the signal from the lever type ice detecting sensor 16 whether or not the ice removing is permitted. If the ice removing is permitted, the automatic ice making motor 13 is driven in step S7. Perform ice removal operation.

In step S2, the water supply is completed when the ice tray 12 is not supplied with a prescribed amount of water due to a shortage of water in the water supply tank 9 or the ice tray 12 is not supplied with water for some reason. If the determination is not made, the process proceeds to step S8, the same ice making completion check as in step S4 is performed, and if the ice making completion check is completed, the process proceeds to step S6.

As a result, if the ice tray 12 is not supplied with a prescribed amount of water or if the ice tray 12 is not supplied with water for some reason, the operating / stop temperature of the compressor 5 is set to a steady value. No lowering is done.

FIG. 4 shows an operation / stop processing flow of the compressor 5. This operation / stop processing flow is repeatedly executed every predetermined time, and first, in step S10, it is determined whether or not it is in the set temperature lowering mode. The set temperature decrease mode is an automatic ice making process flow, in which the operating / stop temperature of the compressor 5 is 2 de from the steady value of -15 ° C / -21 ° C.
In the state where the set temperature lowering mode is set, it means that the compressor 5 is operated at step S11.
The stop temperature (actual control temperature) is set to a predetermined amount, for example, 2 deg lower than the operation / stop temperature set in the compressor operation / stop temperature setter 18, for example, the operation / stop temperature.

On the other hand, if it is not the set temperature lowering mode, the operation / stop temperature (actual control temperature) of the compressor 5 is set in the compressor operation / stop temperature setter 18 in step S12. The temperature.

In step S13, it is determined whether or not the freezing room temperature detected by the freezing room temperature sensor 8 is higher than or equal to the operating temperature. If the freezing room temperature is higher than or equal to the operating temperature, the compressor 5 is operated in step S14. drive.

On the other hand, if the freezing room temperature is not higher than the operating temperature, the process proceeds to step S15, and the freezing room temperature sensor 8
It is determined whether the freezer compartment temperature detected by is equal to or lower than the stop temperature. If the freezer compartment temperature is equal to or lower than the stop temperature, the operation of the compressor 5 is stopped in step S16.

In the set temperature lowering mode, in other words,
During ice making, the operating temperature and the stop temperature are 2 deg lower than in the case where the operating temperature and the stopping temperature are not, respectively, so that the operating rate of the compressor 5 is correspondingly increased.

As described above, since the operation rate of the compressor 5 is increased during ice making, the temperature inside the upper freezer compartment 2 is kept lower than that in the steady state (when no ice is made). As a result, the ice making time of the automatic ice making machine is increased. Is shortened and the amount of ice making per day is increased.

If the ice tray 12 is not supplied with water, in other words, unless it is determined that water has entered the ice tray 12,
The set temperature lowering mode is not entered, and the operation rate of the compressor 5 is increased only when the ice making is actually performed, so that there is no unnecessary power consumption.

Further, when the specified amount of water does not enter the ice tray 12, it is said that the ice making load is small and it is not necessary to enter the set temperature lowering mode. Therefore, in this embodiment, the ice tray 12 is specified. It does not enter the set temperature drop mode unless a certain amount of water is added.

(Embodiment 2) In this embodiment, as shown in FIGS. 1 and 2, the outside temperature (outside air temperature)
A sensor 20 is provided, and the microcomputer 1
7 indicates that when the outside temperature (outside air temperature) detected by the outside temperature sensor 20 after the water is supplied to the ice tray 12 is a predetermined value, for example, 25 ° C. or higher, the ice tray temperature sensor 15 is used. Reduce the compressor run / stop temperature until the ice tray temperature is below the ice making completion temperature.

FIG. 5 shows a processing flow of automatic ice making in the second embodiment. First, in step S20, the solenoid valve 10 for water supply is opened to supply water to the ice tray 12,
It is judged at 21 that the water supply is completed.

When the water supply is completed, it is determined in step S22 whether or not the ice tray temperature detected by the ice tray temperature sensor 15 is equal to or lower than the ice making completion temperature.

When the ice making is not completed, the routine proceeds to step S23, where it is judged whether the outside air temperature detected by the outside temperature sensor 20 is 25 ° C. or higher. If the outside air temperature is 25 ° C. or higher, in Step S24 the compressor 5
2 deg. Below the steady-state operating / stop temperature of -15 ° C / -21 ° C, while the outside temperature is 25 ° C
If not, the operation / stop temperature of the compressor 5 is returned to the original value, that is, the steady value in step S25.

When the ice making is completed, the routine proceeds to step S26, where the operating / stop temperature of the compressor 5 is returned to the original value, and at step S27 it is determined whether or not the ice removal is permitted based on the signal from the lever type ice detecting sensor 16. If it is determined that the ice is released, the automatic ice making motor 13 is driven in step 28 to perform the ice removing operation.

In this case, too, the ice tray 12 is not supplied with a prescribed amount of water due to a shortage of water in the water tank 9, or the ice tray 12 is not supplied with water for some reason. If the completion of water supply is not determined in step S29, the process proceeds to step S29, the same ice making completion check as in step S22 is performed, and if the ice making completion check is completed, the process proceeds to step S27.

Also in this embodiment, the operation / stop control of the compressor 5 is performed by the compressor operation / stop processing flow shown in FIG.

Therefore, in this embodiment, the ice tray 12 is
Only when the outside air temperature detected by the outside temperature sensor 20 is equal to or higher than a predetermined value (25 ° C.), the compressor operation / stop temperature decreases until the ice making is completed, and the operation rate of the compressor 5 decreases. Go up.

In this way, when the outside air temperature is high, the operating rate of the compressor 5 is increased, so that the internal temperature of the upper freezer compartment 2 is kept lower than that in the steady state (when the ice is not made). In summer, when the temperature is high, the ice making time is shortened and the daily ice making amount is increased.

When the ice tray 12 is not supplied with water, the set temperature lowering mode is not set, and the operation rate of the compressor 5 is reduced only in the summer when the demand for ice is high and the ice is actually being produced. There is no unnecessary power consumption because it can be raised.

(Embodiment 3) In this embodiment, as shown in FIG. 2, the elapsed time from the time when the water supply operation to the ice tray 12 is completed by using the software timer 21 of the microcomputer 17. To measure.

If the ice tray temperature by the ice tray temperature sensor 15 is not below the ice making completion temperature when the time measured by the software timer 21 reaches a predetermined value, the microcomputer 17 determines the ice tray temperature by the ice tray temperature sensor 15. Operation of compressor 5 until the temperature falls below the ice making completion temperature
Lower the stop temperature.

FIG. 6 shows a processing flow of automatic ice making in the third embodiment. First, in step S30, the electromagnetic valve 10 for water supply is opened to supply water to the ice tray 12,
It is judged at 31 that the water supply is completed.

When the water supply is completed, the software timer 21 is reset in step S32 and the time measurement by the software timer 21 is started.

Next, in step S33, the completion of ice making is determined by whether or not the ice tray temperature detected by the ice tray temperature sensor 15 is equal to or lower than the ice making completion temperature.

If the ice making is not completed, the process proceeds to step S34, and if the time measured by the software timer 21 reaches a predetermined value, for example, 100 minutes, in other words, the ice making is completed even after 100 minutes have elapsed. If not, the operation / stop temperature of the compressor 5 is a steady value in step S35.
2 deg lower than 15 ° C / -21 ° C.

When the ice making is completed, the routine proceeds to step S36, where the operating / stop temperature of the compressor 5 is returned to the original value, and at step S37, it is determined whether or not the ice removal is permitted based on the signal from the lever type ice detecting sensor 16. If it is determined that the ice removal is permitted, the automatic ice making motor 13 is driven in step 38 to perform the ice removal operation.

In this case as well, in step S31, the ice tray 12 is not supplied with a prescribed amount of water due to lack of water in the water supply tank 9, or the ice tray 12 is not supplied with water for some reason. If it is not determined that the water supply is completed, the process proceeds to step S39, the same ice making completion check as in step S33 is performed, and if the ice making completion check is completed, the process proceeds to step S37.

Also in this embodiment, the operation / stop control of the compressor 5 is performed by the compressor operation / stop processing flow shown in FIG.

Therefore, in this embodiment, the ice tray 12
If ice making is not completed even after 100 minutes have passed after the completion of the water supply to, the load in the refrigerator is determined to be large, and only at this time, the compressor operation / stop temperature decreases until the ice making is completed, and the compressor 5 Driving rate goes up.

As described above, when the ice making time is prolonged, the operation rate of the compressor 5 is increased, so that the temperature inside the upper freezer compartment 2 is kept lower than that in the steady state (when no ice is made). Even if the load is heavy, it will be avoided that the ice making time will be long,
The daily amount of ice making also increases.

Also in this case, when the ice tray 12 is not supplied with water, the set temperature lowering mode is not set, and the operating rate of the compressor 5 is limited only when ice making is actually performed under a large load in the refrigerator. Since there is no need to waste electricity.

(Embodiment 4) In this embodiment, the microcomputer 17 shown in FIG.
After the water is supplied to the compressor 2 until the ice tray temperature by the ice tray temperature sensor 15 becomes equal to or lower than the ice making completion temperature, the compressor 5 is irrespective of the freezer compartment temperature detected by the freezer compartment temperature sensor 8.
To run continuously.

FIG. 7 shows a processing flow of automatic ice making in the fourth embodiment. First, in step S40, the electromagnetic valve 10 for water supply is opened to supply water to the ice tray 12, and it is determined in step S41 that the water supply is completed. Also in this case, the completion of water supply is determined by whether or not the ice tray temperature detected by the ice tray temperature sensor 15 has risen to the preset water supply completion temperature or higher.

When the water supply is completed, the process proceeds to step S42, and the compressor 5 is forcibly operated regardless of the freezing room temperature at this time. This forced operation can also be performed by lowering the operation / stop temperature of the compressor 5 to a limit value.

Next, in step S43, when the ice tray temperature detected by the ice tray temperature sensor 15 falls below the ice making completion temperature, it is judged that the ice making is completed, and in step S44, it is detected by the freezer compartment temperature sensor 8 at this time. If the temperature of the freezer compartment is equal to or lower than the stop temperature, the operation of the compressor 5 is immediately stopped, and the operation mode of the compressor 5 is changed to the original normal operation /
Return to stop mode.

Then, in step S45, it is determined based on the signal from the lever type ice detecting sensor 16 whether or not the ice removing is permitted. If the ice removing is permitted, the automatic ice making motor 13 is driven in step S46. Perform ice removal operation.

Also in this case, step S41 is performed because the ice tray 12 has not been supplied with a prescribed amount of water due to lack of water in the water supply tank 9 or due to some reason that the ice tray 12 has not been supplied with water. If it is not determined that the water supply is completed, the process proceeds to step S47, the same ice making completion check as in step S43 is performed, and if the ice making completion check is completed, the process proceeds to step S45.

As described above, since the compressor 5 is continuously operated during ice making, the temperature inside the upper freezer compartment 2 is kept lower than that in the steady state (when ice is not made). As a result, the ice making time is shortened. As a result, the amount of ice made a day increases.

Also in this case, if the ice tray 12 is not supplied with water, the compressor 5 is not continuously operated, and the compressor 5 is continuously operated only when the ice making is actually performed, resulting in unnecessary power consumption. There is no.

[0069]

As can be understood from the above description, according to the freezer-refrigerator with an automatic ice maker according to the present invention, when water is supplied to the ice making tray, the compressor operating / stop temperature decreases until the ice making is completed. Since the operation rate of the compressor is increased, the temperature inside the freezer compartment is kept lower during ice making than during non-ice making. As a result, the ice making time is shortened and the daily ice making amount is increased. Further, when water is not supplied to the ice tray, the set temperature lowering mode is not set, and the operation rate of the compressor is increased only when ice making is actually performed, so that there is no unnecessary power consumption.

In the freezer-refrigerator with an automatic ice maker according to the next invention, when water is supplied to the ice tray, if the outside temperature detected by the outside temperature sensor is equal to or higher than a predetermined value, the compressor is operated until the ice making is completed. Since the start / stop temperature decreases and the operating rate of the compressor increases, the temperature inside the freezer compartment is maintained at a lower temperature during ice making than during non-ice making, and as a result, the ice making time in summer when the outside air temperature is high is shortened. The daily amount of ice making also increases. Also, in this case, if water is not supplied to the ice tray, the set temperature decrease mode does not occur, and the compressor operation rate is limited only when ice is actually being produced in the summer when ice demand is considered to be high. Since there is no need to waste electricity.

In the freezer-refrigerator with an automatic ice maker according to the next invention, if the ice tray temperature by the ice tray temperature sensor does not fall below the ice making completion temperature even after a lapse of a predetermined time after completion of water supply, the compressor is operated / stopped until the ice making is completed. Since the temperature decreases and the operation rate of the compressor rises, the temperature inside the refrigerator during ice making is kept lower than that during non-ice making, and as a result, even if the load inside the refrigerator is large, the ice making time is prevented from increasing. The amount of ice made daily also increases. Also in this case, if the ice tray is not supplied with water, the set temperature lowering mode is not entered, and the operation rate of the compressor is increased only when the ice making is actually performed under a large load in the refrigerator, There is no unnecessary power consumption.

In the freezer-refrigerator with an automatic ice making machine according to the next invention, when water is supplied to the ice making tray, the compressor is continuously operated during ice making regardless of the freezing room temperature. Is kept at a lower temperature than when it is not ice-making, and as a result, the ice-making time is shortened and the daily amount of ice-making is increased. Also in this case, if water is not supplied to the ice tray, the compressor is not continuously operated, and the compressor is continuously operated only when the ice making is actually performed, so that there is no useless power consumption.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the overall configuration of a refrigerator with an automatic ice maker according to the present invention.

FIG. 2 is a block diagram showing a control system of a refrigerator with an automatic ice maker according to the present invention.

FIG. 3 is a flowchart showing a processing flow of automatic ice making in Embodiment 1 of the refrigerator with an automatic ice maker according to the present invention.

FIG. 4 is a flowchart showing a process flow of operating / stopping a compressor of a refrigerator with an automatic ice maker according to the present invention.

FIG. 5 is a flowchart showing a processing flow of automatic ice making in the embodiment 2 of the refrigerator with an automatic ice making machine according to the present invention.

FIG. 6 is a flowchart showing a processing flow of automatic ice making in Embodiment 3 of the refrigerator with an automatic ice maker according to the present invention.

FIG. 7 is a flowchart showing a processing flow of automatic ice making in Embodiment 4 of the refrigerator with the automatic ice maker according to the present invention.

FIG. 8 is a flowchart showing a processing flow of automatic ice making in a conventional refrigerator with an automatic ice making machine.

[Explanation of symbols]

1 refrigerating room, 2 upper freezing room, 3 lower freezing room, 4 vegetable room, 5 compressor, 6 cooler, 7 internal fan, 8 freezing room temperature sensor, 9 water supply tank, 10 water supply solenoid valve, 11 water supply pipe , 12 ice tray, 13 automatic ice making motor, 14 ice storage box, 15 ice tray temperature sensor, 16
Lever type ice sensor, 17 microcomputer, 1
8 compressor run / stop temperature setting device, 19 drive circuit, 2
0 outside temperature sensor, 21 software timer

Claims (4)

[Claims] 1. An automatic ice maker that automatically removes ice when water is supplied to an ice tray placed in a freezer compartment and the ice tray temperature detected by an ice tray temperature sensor falls below an ice making completion temperature, A refrigerator / freezer refrigerator with an automatic ice maker in which a compressor of a refrigerating cycle for cooling the freezer compartment is operated / stopped by comparing a compressor operating / stopping temperature and a freezer compartment temperature detected by a freezer compartment temperature sensor, Only when it is determined that water has entered the ice tray after water has been supplied to the ice tray, the compressor is operated / operated until the ice tray temperature by the ice tray temperature sensor falls below the ice making completion temperature.
A freezer-refrigerator with an automatic ice maker, which has a control means for lowering the stop temperature. 2. An automatic ice maker that automatically removes ice when water is supplied to an ice tray placed in a freezer compartment and the ice tray temperature detected by an ice tray temperature sensor falls below an ice making completion temperature, A refrigerator / freezer refrigerator with an automatic ice maker in which a compressor of a refrigerating cycle for cooling the freezing compartment is operated / stopped by comparing a compressor operating / stopping temperature with a freezing compartment temperature detected by a freezing compartment temperature sensor, An outside temperature sensor for detecting an outside temperature, and an outside temperature detected by the outside temperature sensor is a predetermined value or more only when it is determined that water has entered the ice tray after water has been supplied to the ice tray. In some cases, a freezing device with an automatic ice-making machine, comprising: a control unit that lowers the operating / stopping temperature of the compressor until the ice-making plate temperature by the ice-making plate temperature sensor becomes equal to or lower than the ice-making completion temperature. cold The refrigerator. 3. An automatic ice maker that automatically removes ice when water is supplied to an ice tray placed in a freezer compartment and the ice tray temperature detected by an ice tray temperature sensor falls below an ice making completion temperature, A refrigerator / freezer refrigerator with an automatic ice maker in which a compressor of a refrigerating cycle for cooling the freezer compartment is operated / stopped by comparing a compressor operating / stopping temperature and a freezer compartment temperature detected by a freezer compartment temperature sensor, A timer that measures the elapsed time from that point only when it is determined that water has entered the ice tray after the water supply operation to the ice tray has been completed, and the ice tray at the time when the time measurement value by the timer reaches a predetermined value. If the ice tray temperature measured by the temperature sensor is not lower than the ice making completion temperature, the compressor operation / stop temperature is lowered until the ice tray temperature detected by the ice tray temperature sensor becomes equal to or lower than the ice making completion temperature. Automatic ice maker with refrigerator, characterized in that a control means. 4. An automatic ice maker that automatically removes ice when water is supplied to an ice tray placed in a freezer compartment and the ice tray temperature detected by an ice tray temperature sensor falls below an ice making completion temperature, A refrigerator / freezer refrigerator with an automatic ice maker in which a compressor of a refrigerating cycle for cooling the freezer compartment is operated / stopped by comparing a compressor operating / stopping temperature and a freezer compartment temperature detected by a freezer compartment temperature sensor, Only when it is determined that water has entered the ice tray after water has been supplied to the ice tray, the freezer compartment temperature detected by the freezer compartment temperature sensor until the ice tray temperature by the ice tray temperature sensor falls below the ice making completion temperature. A freezer-refrigerator with an automatic ice maker, which has a control means for continuously operating the compressor regardless of the above.