JP2003075041A - Refrigerator and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that cold air is wasted due to interruption of an refrigerator interior fan irrespective of cold air remaining in the vicinity of a cooler right after interruption of a compressor because the compressor and the fan are operated and interrupted at a same timing in the constitution of a conventional refrigerator wherein operation/interruption of the compressor is controlled identically with operation/interruption of the fan. SOLUTION: Operation/interruption of the refrigerator interior fan is controlled by comparing refrigerator interior fan operation/interruption temperature with freezing compartment temperature detected by a freezing compartment temperature sensor, separately from control of the compressor for controlling operation/interruption of the compressor by comparing compressor operation/ interruption temperature with the freezing compartment temperature detected by the freezing compartment temperature sensor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly to setting a stop temperature of a compressor and a refrigerator fan of a refrigerator.

[0002]

2. Description of the Related Art FIG. 1 shows an example of a refrigerator / freezer. In the refrigerator / freezer, a compressor 5 is operated as shown in FIG. 1 and air cooled by a cooler 3 is circulated in a refrigerator by a fan 4 inside the refrigerator. Although the inside of the refrigerator is cooled, the operation / stop of the compressor 1 is determined by comparing the compressor operation / stop temperature with the freezing compartment temperature detected by the freezing compartment temperature sensor 2, and the operation of the internal fan 4 -The stop was basically synchronized with the running / stopped state of the compressor 1. Therefore, as shown in the configuration of the conventional compressor / internal fan operation / stop control program shown in FIG. 8, the control program of the microcomputer for controlling the operation / stop of the compressor / internal fan is the compressor refrigeration Although there was room temperature judgment, it was a program that did not judge the freezing room temperature for the internal fan. That is, the compressor freezing room temperature is determined, the compressor operation is determined in response to the compressor operation / stop request, and the compressor operation / stop state of the determination result indicates that
It was judged whether the internal fan was operating or stopped.

The operation / stop control of the compressor of the refrigerator / freezer and the operation / stop control of the internal fan will be described with reference to the flowcharts of FIGS. The operation / stop of the compressor is determined by comparing the compressor operation / stop temperature with the freezing room temperature detected by the freezing room temperature sensor 2 as shown in the flowchart of the conventional compressor freezing room temperature determination in FIG. did. The internal fan 4 blows cold air around the cooler 3 during operation of the compressor 1 into the freezer compartments 8 and 9 to operate during operation of the compressor 1 and near the cooler 3 while the compressor 1 is stopped. Since it is not necessary to blow the cold air in the freezer compartments 8 and 9, the internal fan 4 is stopped while the compressor 1 is stopped. Therefore, it is not necessary to compare and determine the operating / stop temperature of the internal fan 4 and the freezer compartment temperature sensor 2, and there is no control program.

In FIG. 9, the determination of the freezing room temperature when the compressor 1 is operated / stopped is performed as follows. In step S301, the request currently being output is determined to determine which of the operating temperature and the operating temperature is to be determined. If the compressor stop request is being output, the temperature of the freezer compartment temperature sensor 2 is compared with the compressor ON temperature, which is the compressor operating temperature, in S302. If the refrigerator compartment sensor temperature ≧ the compressor ON temperature, the compressor is operated in S303. Output the request. Further, at 302, the freezer compartment sensor temperature ≧ compressor ON
If the temperature condition is not satisfied, a compressor stop request is output in S305. If it is determined in S301 that the compressor operation request is being output, the temperatures of the freezer compartment temperature sensor 2 and the compressor OFF temperature that is the compressor stop temperature are determined in S304, and if the refrigerator compartment sensor temperature <the compressor ON temperature Outputs a compressor stop request in S305. In S304, if the freezer compartment sensor temperature <compressor OFF temperature condition is not satisfied, S303
The compressor operation request is output with.

Next, the operation determination of the compressor 1 will be described with reference to the conventional compressor operation determination flowchart of FIG.
In S401, it is determined whether the compressor is currently in operation. If it is stopped, the restart prevention time is determined in S402 for operation start determination. If it is not in restart prevention, a compressor operation request is determined in S403. If there is a request, the compressor is operated in S404. If restart is being prevented in S402 or if there is no compressor operation request in S403, S407 is executed and the compressor is not operated. If the compressor is currently operating in S401, a compressor stop request is determined in S405 for stop determination, and if there is a request, restart prevention is set in S406 and the compressor is stopped in S407. If there is no compressor stop request in S405, S404 is executed to continue the operation of the compressor.

The internal fan operation determination will be described with reference to the flowchart of FIG. 11 showing the conventional internal fan operation determination. The operating state of the compressor 1 is determined in S501 in order to determine the operating operation of the internal fan 4 based on the operating state of the compressor 1, and the internal fan 4 is operated in S502 while the compressor 1 is operating. Further, while the compressor 1 is stopped, the internal fan 4 is stopped in S503.

[0007]

The conventional control program for operating / stopping the compressor 5 of the refrigerator and the internal fan 4 is configured as described above, and is controlled by this control program. The operation and stop timing of the internal fan 4 are the same, and immediately after the compressor 5 is stopped, the internal fan 4 is also stopped even though there is residual cool air near the cooler 3, and the cool air is wasted. Was there.

If the stop timing of the internal fan 4 is delayed in order to blow the residual cool air around the cooler 3 immediately after the compressor 5 is stopped into the freezing chamber, the cooling energy can be effectively used, but the stop timing is increased. The program is not controllable. For this reason, there is a problem that it is not possible to take measures even though the means for improving the power consumption has been clarified.

The present invention has been made in order to solve such a problem, and it is possible to avoid wasting cooling energy and obtain an energy-saving refrigerator capable of improving power consumption and cooling load. The objective is to obtain a refrigerator that accurately responds to fluctuations, and to obtain a microcomputer-controlled refrigerator that uses a control program.

[0010]

According to a first aspect of the present invention, there is provided a refrigerator in which a compressor is operated and air cooled by a cooler is circulated in the refrigerator by a fan in the refrigerator. When the detected internal temperature falls below the set compressor stop temperature, the compressor is stopped, and when the internal temperature detected by the internal temperature sensor falls below the set internal fan stop temperature, the internal fan is stopped. In addition, the compressor stop temperature and the internal fan stop temperature are independently set.

A refrigerator according to a second aspect of the present invention is the refrigerator according to the first aspect, wherein the set temperature of the compressor stop temperature is set higher than the set temperature of the internal fan stop temperature.

According to a third aspect of the present invention, in the refrigerator of the second aspect, the set temperature of the compressor stop temperature is lowered when the load detecting means detects a large load amount equal to or larger than a predetermined value. It is what makes me.

According to a fourth aspect of the present invention, in the refrigerator of the first aspect, when the load detecting means detects a large load amount equal to or larger than a predetermined amount or a small load amount equal to or smaller than a predetermined amount, the compressor at the time of detection. The stop temperature is set lower or higher respectively.

According to a fifth aspect of the present invention, in the refrigerator according to the first or second aspect, the compressor stop temperature is set by changing the set temperature in the refrigerator.
High or low.

According to a sixth aspect of the present invention, in the refrigerator according to the fifth aspect, the refrigerator has a receiving unit for receiving the change of the set temperature in the refrigerator, and the change information of the set temperature in the cabinet is externally supplied. This is done by receiving.

According to a seventh aspect of the present invention, there is provided a control program for a microcomputer of a refrigerator, an internal fan stop temperature setting means for setting an internal fan stop temperature for stopping operation of an internal fan, and an internal temperature sensor. When the detected in-compartment temperature reaches the in-compartment fan stop temperature, the in-compartment fan stop means for stopping the in-compartment fan and the compressor stop temperature for stopping the operation of the compressor are set as the in-compartment fan stop temperature. As a compressor stop temperature setting means for setting a temperature higher than the internal fan stop temperature set by the means, and as a compressor stop means for stopping the operation of the compressor when the internal temperature reaches the compressor stop temperature. It works.

Further, a control program according to claim 8 of the present invention is: a microcomputer of a refrigerator, an internal fan stop temperature setting means for setting an internal fan stop temperature for stopping the operation of the internal fan, and an internal temperature. When the temperature inside the refrigerator detected by the sensor reaches the inside fan stop temperature, the inside fan stopping means for stopping the inside fan, the load detecting means for detecting the load of the refrigerator, and the compression for stopping the operation of the compressor Compressor stop temperature setting means for setting the machine stop temperature, when the load detection means detects a large load amount of a predetermined or more or a small load amount of a predetermined or less, the setting of the compressor stop temperature at the time of detection, Compressor stop temperature setting means for setting respectively low or high,
It functions as a compressor stopping means for stopping the operation of the compressor when the internal temperature reaches the compressor stop temperature.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. FIG. 1 is a schematic diagram showing the entire configuration of a refrigerator-freezer as viewed from the lateral direction. In the figure, 1 is a refrigerator, and 2 is a freezer compartment temperature sensor which is an inside compartment temperature sensor for detecting the inside compartment temperature of the refrigerator 1, and detects the temperature of the freezer compartment. 3 is a cooler, 4 is an internal fan, and 5 is a compressor, which constitutes a refrigeration cycle including the cooler 3 and the compressor 5, and operates the compressor 5 to store the air cooled by the cooler 3. It is circulated in the refrigerator by the inner fan 4.
That is, 6 is a refrigerating room, 7 is a vegetable room, 8 is an upper freezing room, and 9 is a lower freezing room, and cooling air is circulated through these.
Further, the freezer temperature sensor 2, the internal fan 4, and the compressor 5
Is connected by a signal line 10 to a microcomputer 11 which is a microcomputer mounted control device (microcomputer mounted control board), inputs a temperature detected by a freezer compartment temperature sensor 2, and a control program of the microcomputer 11 causes an internal fan 4 and a compressor. In 5, the operation / stop is controlled. In the present embodiment, the freezing compartment temperature sensor 2 is arranged in the upper freezing compartment 8 and detects the temperature inside the upper freezing compartment 8.

The compressor 5 compares the compressor operating / stopping temperature, which is determined by the set temperature of the freezer compartment, which is the set temperature in the refrigerator, with the freezer compartment temperature detected by the freezer compartment temperature sensor 2 to start / stop the microcomputer 11. It is controlled by the control program.

FIG. 2 shows a control program structure according to the first embodiment of the present invention. FIG. 2A shows a program configuration of the compressor 5. In the compressor freezing room temperature determination, the temperature detected by the freezing room temperature sensor 2 and the compressor operating / stopping temperature are compared and judged, and the compressor operating / stopping request is issued. Output to the compressor operation judgment. In the compressor operation determination, the operation / stop of the compressor is determined by the compressor operation / stop request. FIG. 2B shows a program configuration of the internal fan 4. In the internal fan freezing room temperature determination, the temperature detected by the freezing room temperature sensor and the internal fan operation / stop temperature are compared and determined, and the internal fan operation /
The stop request is output to the internal fan operation determination independent of the compressor. Independent independent fan operation determination determines whether the internal fan is operating or stopped according to the internal fan operating / stop request.

FIG. 3 is a flow chart for judging the temperature of the freezer compartment for the internal fan, which is newly added to the control program in comparison with the conventional technique. In the figure, S1
At 01, the request currently being output is determined, and it is determined whether the temperature determination for operation or stop is performed. When performing the operating temperature determination (ON temperature determination) during the stop request output, the freezing chamber sensor temperature 2 is compared with the internal fan ON temperature (internal fan operating temperature) in S102, and the freezing chamber sensor temperature ≥ internal fan ON
In the case of temperature, an internal fan operation request is output in S103. If the freezer compartment sensor temperature ≧ internal fan ON temperature condition is not satisfied in S102, an internal fan stop request is output in S105. When determining the stop temperature (OFF temperature) in the operation request output, the freezing chamber sensor temperature is compared with the internal fan OFF temperature (internal fan stop temperature) in S104, and the freezing chamber sensor temperature <internal fan OFF temperature In this case, in S105, an in-compartment fan stop request is output. Also S10
If the freezer compartment sensor temperature <compressor OFF temperature condition is not satisfied in 4, the internal fan operation request is output in S103.

FIG. 4 is a flow chart of the independent fan operation determination. In the figure, since the operation / stop is determined based on the internal fan operation request, the internal fan operation request is determined in S201, and if there is a request, the internal fan 4 is operated in S202. If there is no request to operate the internal fan in S201, the internal fan 4 is stopped in S203.

As for the compressor 5, the determination of the compressor freezing room temperature is the same as that shown in FIG. 9, and the determination of the compressor operation is as follows.
This is the same as FIG. 10 described above. By using this control program for freezing room control, the compressor 5 and the in-compartment fan 4 can be independently operated / stopped. Therefore,
Since the compressor and the internal fan can be operated / stopped under the optimum temperature condition for controlling the internal temperature, it is possible to obtain a refrigerator that does not waste power consumption and can appropriately cope with cooling load fluctuations. .

In the first embodiment, the compressor stop temperature (compressor OFF temperature) is set higher than the internal fan stop temperature (internal fan OFF temperature) using the program configuration shown in FIG. As a result, as shown in FIG. 5, the compressor 5 and the internal fan 4 operate when the temperature T1 detected by the freezer compartment temperature sensor 2 rises above the compressor / internal fan ON temperature T2. The state T5 and the internal fan operating state T6 are ON (operating). Also, the compressor OFF temperature T
3> Since the internal fan OFF temperature T4, the compressor 5 is stopped first, and then the internal fan is stopped by the residual cold air near the cooler to cool the internal compartment. Therefore, the operation time of the compressor 5 can be reduced by the compressor operation reduction time T7. In the example of FIG. 5, the compressor ON temperature and the in-compartment fan ON temperature are set to the same as T2, and when cold air is formed by the compressor operation, the in-compartment fan 4 is operated to send this cold air into the in-compartment. I have to.

Embodiment 2. In the second embodiment, the program configuration of FIG. 3 is used as in the first embodiment, and the compressor OFF temperature is set higher than the internal fan OFF temperature, but the refrigerator door is opened, the outside air temperature is high, and the food When the cooling time becomes long due to the condition of increasing the cooling load such as increasing the amount, the compressor OFF temperature is lowered to prevent the cooling time from being lengthened.

As shown in FIG. 6, the compressor 5 and the internal fan 4
When the temperature T1 detected by the freezer compartment temperature sensor 2 rises above the compressor / internal fan ON temperature T2, the compressor operating state T5 and the internal fan operating state T6 are turned on. Further, the temperature T1 detected by the freezer compartment temperature sensor 2 is the compressor OFF temperature T.
3. When the internal fan OFF temperature T4 or lower, each operating state is turned OFF. When the cooling time is likely to be long during the operation of only the internal fan 4 under the condition that the compressor OFF temperature T3> the internal fan OFF temperature T4, the compressor is turned off.
The temperature T3 is the same as the internal fan OFF temperature T4. That is, the temperature is lowered to T4. From that point, the compressor is started and the cooling is completed in a time shorter than the temperature T8 detected by the freezer compartment temperature sensor when the cooling speed is slow, and the cooling short time T9 is reached.
Only the cooling time is shortened. To determine the increase of the cooling load such as opening the door of the refrigerator, the outside air temperature is high, and the amount of food is increasing, the load detecting means in the microcomputer-equipped controller 11 determines whether the temperature detected by the inside temperature sensor 2 is equal to the set temperature inside the refrigerator. If the difference is larger than a predetermined temperature, the temperature detected by the internal temperature sensor 2 is higher than the preset internal temperature, and the decrease in internal temperature per unit time is smaller than the predetermined temperature, it is determined that the cooling load is increased. , Compressor O
Lower the FF temperature. As a result, the cooling time can be shortened by operating the compressor when there is no residual cold air around the cooler and the freezer cannot be cooled only by operating the internal fan.

Embodiment 3. In the third embodiment, the compressor OFF temperature and the internal fan OFF temperature are initially set to be the same using the program configuration of FIG.
Compressor O when cooling load such as food load condition becomes light
The FF temperature is raised to shorten the operation time of the compressor 5.

As shown in FIG. 7, the compressor 5 and the internal fan 4
When the temperature T1 detected by the freezer compartment temperature sensor 2 rises above the compressor / compartment fan ON temperature T2, the compressor operating state T5 and the in-compartment fan operating state T6 are turned on. Further, the temperature T1 detected by the freezer compartment temperature sensor 2 is the compressor OFF temperature T4,
When the in-compartment fan OFF temperature T4 or less is reached, each operating state is turned OFF. If the cooling load becomes light during the operation of the compressor 5 and the internal fan 4 under the condition that the compressor OFF temperature T4 and the internal fan OFF temperature T4 are the same, the compressor O
FF temperature T3> in-compartment fan OFF temperature T4. If the temperature detected by the freezer compartment temperature sensor 2 at that time is equal to or lower than the compressor OFF temperature T3, the compressor 5 is stopped and only the internal fan 4 is cooled. Therefore, the operating time of the compressor 5 is shortened and energy is saved. To determine whether the cooling load is reduced, the load detection means in the microcomputer-equipped controller 11 determines whether the difference between the temperature detected by the temperature sensor 2 in the refrigerator and the preset temperature in the refrigerator is larger than a predetermined temperature, or the temperature in the refrigerator per hour. When the decrease is larger than the specified temperature, it is judged that the cooling load is decreased and the compressor is turned off.
Raise the temperature.

Fourth Embodiment In Embodiments 2 and 3, the compressor OFF temperature was changed when the cooling load fluctuated due to the usage condition of the refrigerator, the outside air temperature, and the food load, but the user arbitrarily operated the refrigerator internal set temperature to compress the refrigerator. The machine OFF temperature may be changed. By doing so, the cooling load can be coped with by the intention of the user.

In order to change the OFF temperature of the compressor by the user, the refrigerator has a receiving means, and the user uses various communication means such as the Internet from a place where he / she is out by using a mobile information terminal, a mobile phone or the like. Then, the OFF temperature of the compressor may be changed by remotely controlling the set temperature of the refrigerator.

In Embodiments 2 and 3 described above, when the cooling load fluctuates during use of the refrigerator 1, an example of lowering and raising the stop temperature of the compressor has been described. Generally, when the load detection means detects a large load amount above a predetermined amount or a small load amount below a predetermined amount, the cooling load is set by setting the compressor stop temperature at the time of detection to low or high, respectively. If the cooling load becomes small, the cooling time to the set temperature in the refrigerator will not be prolonged, and if the cooling load becomes small, the compressor will be stopped first and the internal fan will cool it to operate the compressor. You can save time.

[0032]

The refrigerator according to the first aspect of the present invention is a refrigerator in which the compressor is operated and the air cooled by the cooler is circulated in the refrigerator by the fan in the refrigerator. When the temperature is lower than the set compressor stop temperature, the compressor is stopped, and when the detected internal temperature of the internal temperature sensor is lower than the set internal fan stop temperature, the internal fan is stopped, and Since the compressor stop temperature and the internal fan stop temperature are set independently of each other, the operating / stop temperatures of the compressor and internal fan can be set individually, and the compressor and It is possible to improve the power consumption by operating and stopping the internal fan.

According to a second aspect of the present invention, in the refrigerator of the first aspect, since the set temperature of the compressor stop temperature is set higher than the set temperature of the internal fan stop temperature, the internal fan is In addition, the compressor is stopped first, and the remaining cool air around the cooler is blown into the inside of the refrigerator by the internal fan, so that the operating time of the compressor can be shortened and energy can be saved.

According to a third aspect of the present invention, in the refrigerator of the second aspect, the set temperature of the compressor stop temperature is lowered when the load detecting means detects a large load amount equal to or larger than a predetermined value. Therefore, in addition to the effect of claim 2, even if the cooling load increases, it is possible to prevent the cooling time to the set temperature in the refrigerator from being prolonged.

According to a fourth aspect of the present invention, in the refrigerator of the first aspect, when the load detecting means detects a large load amount equal to or larger than a predetermined amount or a small load amount equal to or smaller than a predetermined amount, the compressor at the time of detection. Since the setting of the stop temperature is made lower or higher respectively, the cooling time to the set temperature in the refrigerator will not be prolonged if the cooling load becomes large, and if the cooling load becomes small, the compressor Stop first,
Cooling with the internal fan can reduce the operating time of the compressor.

The refrigerator according to claim 5 of the present invention is the refrigerator according to claim 1 or 2, wherein the compressor stop temperature is set by changing the set temperature in the refrigerator.
Since it is set higher or lower, the cooling load can be accommodated by the intention of the user.

A refrigerator according to a sixth aspect of the present invention is the refrigerator according to the fifth aspect, wherein the refrigerator has a receiving unit for receiving the change information of the preset temperature in the refrigerator, and information for changing the preset temperature in the refrigerator is provided from the outside. Since it is performed by receiving, the cooling load can be coped with from the outside by the intention of the user.

According to a seventh aspect of the present invention, there is provided a control program for a refrigerator microcomputer, an internal fan stop temperature setting means for setting an internal fan stop temperature for stopping operation of an internal fan, and an internal temperature sensor. When the detected in-compartment temperature reaches the in-compartment fan stop temperature, the in-compartment fan stop means for stopping the in-compartment fan and the compressor stop temperature for stopping the operation of the compressor are set as the in-compartment fan stop temperature. As a compressor stop temperature setting means for setting a temperature higher than the internal fan stop temperature set by the means, and as a compressor stop means for stopping the operation of the compressor when the internal temperature reaches the compressor stop temperature. Since it functions, the compressor stops before the internal fan, and the internal fan blows the residual cool air near the cooler into the internal refrigerator to shorten the operating time of the compressor and save energy. Microcomputer control It can become.

Further, the control program according to claim 8 of the present invention comprises: a microcomputer of the refrigerator; an internal fan stop temperature setting means for setting an internal fan stop temperature for stopping the operation of the internal fan; and an internal temperature sensor. When the detected in-compartment temperature reaches the in-compartment fan stop temperature, an in-compartment fan stop means for stopping the in-compartment fan, a load detection means for detecting the load of the refrigerator, and a compressor for stopping the operation of the compressor Compressor stop temperature setting means for setting the stop temperature, when the load detection means detects a large load amount of a predetermined or more or a small load amount of a predetermined or less, the setting of the compressor stop temperature at the time of detection, respectively. Compressor stop temperature setting means for setting low or high,
When the temperature inside the refrigerator reaches the compressor stop temperature, it functions as a compressor stop means for stopping the operation of the compressor.
If the cooling load becomes large, the cooling time to the set temperature in the refrigerator will not be prolonged, and if the cooling load becomes small, the compressor will be stopped first and the internal fan will cool it. Microcomputer control that can reduce the operating time of is possible.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an overall configuration of a refrigerator-freezer.

FIG. 2 is a diagram showing a control program configuration according to the first embodiment of the present invention.

[Fig. 3] Fig. 3 is a flowchart showing temperature determination in the freezer compartment for the internal fan according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing an internal fan operation determination according to the first embodiment of the present invention.

FIG. 5 is a diagram showing an operation of a control program according to the first embodiment of the present invention in time series.

FIG. 6 is a diagram showing an operation of a control program according to the second embodiment of the present invention in time series.

FIG. 7 is a diagram showing an operation of a control program according to the third embodiment of the present invention in time series.

FIG. 8 is a diagram showing a conventional control program configuration.

FIG. 9 is a flow chart showing the conventional temperature determination of the freezer compartment for a compressor.
It is a chart.

FIG. 10 is a flowchart showing a conventional compressor operation determination.

FIG. 11 is a flowchart showing a conventional internal fan operation determination.

[Explanation of symbols]

1 refrigerator, 2 internal temperature sensor, 3 cooler, 4 internal fan, 5 compressor, 11 microcomputer.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3L045 AA02 BA01 CA02 DA02 EA01                       LA05 LA09 LA11 MA02 MA20                       NA12 NA19 PA01 PA02 PA03                       PA04                 5H323 AA18 BB12 CB23 CB33 DA01                       DB11 EE04 EE11 FF01 JJ10                       LL03 LL10 LL25 MM02 NN03

Claims (8)

[Claims] 1. In a refrigerator in which a compressor is operated and air cooled by a cooler is circulated in the refrigerator by a fan in the refrigerator, when the temperature in the refrigerator detected by a temperature sensor in the refrigerator becomes lower than a set stop temperature of the compressor. When the compressor is stopped and the in-compartment fan temperature detected by the in-compartment temperature sensor becomes lower than the set in-compartment fan stop temperature, the in-compartment fan is stopped and the compressor stop temperature and the in-compartment fan stop temperature are set. Are refrigerators that are set independently of each other. 2. The refrigerator according to claim 1, wherein the set temperature of the compressor stop temperature is set higher than the set temperature of the internal fan stop temperature. 3. The refrigerator according to claim 2, wherein the set temperature of the compressor stop temperature is lowered when the load detecting means detects a large load amount of a predetermined value or more. 4. When the load detecting means detects a large load amount above a predetermined level or a small load amount below a predetermined level, the setting of the compressor stop temperature at the time of detection is set low or high, respectively. The refrigerator according to claim 1. 5. The refrigerator according to claim 1, wherein the setting of the compressor stop temperature is changed to high or low by changing the set temperature in the refrigerator. 6. The refrigerator according to claim 5, wherein the refrigerator has a receiving means for changing the set temperature in the refrigerator and receives change information of the set temperature in the refrigerator from the outside. 7. A refrigerator microcomputer, an internal fan stop temperature setting means for setting an internal fan stop temperature for stopping the operation of the internal fan, and an internal temperature detected by an internal temperature sensor. When the temperature reaches the temperature, the internal fan stop means for stopping the internal fan and the compressor stop temperature for stopping the operation of the compressor are higher than the internal fan stop temperature set by the internal fan stop temperature setting means. A control functioning as a compressor stop temperature setting means for setting the temperature and a compressor stop means for stopping the operation of the compressor when the internal temperature reaches the compressor stop temperature. program. 8. A refrigerator microcomputer, an internal fan stop temperature setting means for setting an internal fan stop temperature for stopping the operation of the internal fan, and an internal temperature detected by an internal temperature sensor. When the temperature reaches, the internal fan stop means that stops the internal fan, the load detection means that detects the load of the refrigerator, and the compressor stop temperature setting means that sets the compressor stop temperature that stops the operation of the compressor In the case where the load detecting means detects a large load amount of a predetermined value or more or a small load amount of a predetermined value or less, the setting of the compressor stop temperature at the time of detection is set to low or high, respectively. And a control program which functions as a compressor stopping means for stopping the operation of the compressor when the internal temperature reaches the compressor stop temperature.