JPH11211311A - refrigerator - Google Patents

Abstract

(57) [Problem] To prevent the operation of a compressor from continuing for an abnormally long time when the operation of the compressor is forcibly started after the end of the rapid cooling operation. SOLUTION: When a predetermined time elapses after the end of the rapid cooling operation, the compressor is forcibly operated. This forced operation of the compressor is stopped when the freezer compartment temperature sensor detects the OFF set temperature or lower. Since the freezer compartment is cooled to a considerably low temperature by the rapid cooling operation, it is cooled to the off set temperature or less in a relatively short time. Therefore, unlike the normal control in which the forced operation of the compressor is stopped when both the temperature sensor for the specification switching room and the temperature sensor for the freezing room both detect the OFF set temperature or less, the operation of the compressor is continued for an abnormally long time. Can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a freezer compartment and a specification switching room capable of setting a storage temperature to a plurality of storage temperature zones including a freezing temperature zone.

[0002]

Recently, there has been provided a refrigerator provided with a specification switching room capable of setting a storage temperature to a plurality of storage temperature zones including a freezing temperature zone. In this refrigerator, when the specification switching room is set to the freezing room specification, the compressor of the refrigeration cycle is controlled based on the temperatures detected by the freezing room temperature sensor and the specification switching room temperature sensor. Specifically, when both of the temperature sensors detect a temperature equal to or higher than the respectively set ON set temperature, the operation of the compressor is started. It is configured to be stopped. Then, in order to control the temperature of the specification switching room to a temperature range of the selected specification, a damper device for supplying cool air to the specification switching room is opened and closed according to the temperature detected by the specification switching room temperature sensor. Have been.

[0003] Conventionally, in a refrigerator, a rapid cooling operation in which a compressor is compulsorily operated for a certain time can be performed in order to rapidly cool and freeze food in a freezer compartment. When this rapid cooling operation is performed, the freezing compartment is constantly supplied with cool air during that time,
As shown in FIG. 9, the temperature of the freezing compartment is cooled to the off set temperature Tff or lower. On the other hand, the specification switching room has the off set temperature T
When cooled below sf, the damper device closes to stop the supply of cool air, and when it rises above the set ON temperature Tsn, the damper device opens to perform cool air supply, and is therefore kept in the freezing temperature zone.

[0004] When such a rapid cooling operation is performed, the temperature of the freezing compartment is cooled to a temperature considerably lower than the off set temperature Tff. It takes time. Then, in a control mode in which the operation of the compressor is started under the condition that both the temperature sensors for the freezing room and the specification switching room have become equal to or higher than the ON set temperatures Tsn and Tfn, it is quite difficult to operate the compressor. However, there is a possibility that the temperature of the specification switching room or the refrigerator room may abnormally rise.

Therefore, after the rapid cooling operation is performed, the operation of the compressor is forcibly started when a predetermined time has elapsed. However, in a control mode in which the forced operation of the compressor is terminated on condition that both of the temperature sensors for the freezing room and the specification switching room detect the OFF set temperatures Tsf and Tff or more, Even if the chamber is cooled down to the off-setting temperature Tff, if the initial temperature of the specification switching chamber is high, the supply of cold air is low and the specification switching chamber, which is difficult to cool down, does not easily drop to the off-setting temperature Tsf, and the compressor runs for a long time It will be done. Then, the compressor is operated unnecessarily for a long time to shorten its life, the whole refrigerator is cooled too much, the food in the refrigerator compartment is frozen, and dew is formed on the outer surface of the refrigerator body. And the like.

The present invention has been made in view of the above circumstances, and an object thereof is that after a rapid cooling operation is performed, a compressor is operated for an unnecessarily long time to be in a supercooled state. It is an object of the present invention to provide a refrigerator that can prevent the occurrence of troubles.

[0007]

According to one aspect of the present invention, there is provided a freezing room, a specification switching room capable of setting a storage temperature to a plurality of storage temperature zones including a freezing temperature zone,
A freezer compartment temperature sensor for detecting the temperature in the freezer compartment,
A specification switching room temperature sensor for detecting the temperature in the specification switching room, and usually includes control means for controlling a compressor based on the detection temperatures of both the freezing room and the specification switching room temperature sensors, The control means, when a rapid cooling operation for forcibly operating the compressor for a predetermined time in order to rapidly cool food in the freezer compartment is performed, the compressor is controlled based on the temperature detected by the freezer compartment temperature sensor. And controlling the compressor back to normal control for controlling the compressor based on the temperatures detected by the two temperature sensors.

According to a second aspect of the present invention, there is provided a freezer compartment, a specification switching room capable of setting a storage temperature to a plurality of storage temperature zones including a freezing temperature zone, and a freezer compartment temperature sensor for detecting the temperature in the freezer compartment. A specification switching room temperature sensor for detecting the temperature in the specification switching room, and control means for controlling a compressor based on the detection temperatures of both the freezing room and specification switching room temperature sensors. The control means, when a rapid cooling operation in which the compressor is forcibly operated for a predetermined time in order to rapidly cool the food in the freezer compartment is performed, stops the rapid cooling operation and then performs a first predetermined cooling operation. After a lapse of time, the operation of the compressor is forcibly started, and the forced operation of the compressor is stopped based on the temperature detected by the freezer compartment temperature sensor. And it is characterized in that it is configured to return to the normal control for controlling on the basis of the detected temperature of the two temperature sensors.

According to the configuration of the present invention, when the rapid cooling operation is performed, the compressor is controlled based on the temperature detected by the freezer compartment temperature sensor. The freezer compartment having a low temperature is cooled to the off-set temperature or less in a short time, and the compressor is stopped based on this. Therefore, the operation of the compressor is not continued for an abnormally long time.

In this case, if the control of the compressor based on the temperature detected by the freezer compartment temperature sensor is performed until a predetermined time elapses after the rapid cooling operation is stopped, the present invention is configured as follows. Abnormally prolonged operation of the compressor can be more reliably prevented. Further, even when the rapid cooling operation is stopped halfway, as in the invention of claim 4, when the freezing room temperature sensor detects a temperature that is lower than the temperature at which the compressor is stopped, the freezing room temperature sensor does not operate. If the compressor is configured to be controlled based on the detected temperature, then even if the compressor is forcibly operated,
The operation of the compressor is not continued for an abnormally long time.

Furthermore, when the operation of the compressor is not started by the normal control within the third predetermined time after the stop of the rapid cooling operation, the detected temperature of the freezer compartment temperature sensor is set as in the fifth aspect of the present invention. If it is configured to control the operation of the compressor based on the, based on the temperature detected by the freezer compartment temperature sensor, only if the freezer compartment has been cooled to a temperature significantly lower than the off set temperature by the rapid cooling operation The operation of the compressor is controlled, and if the freezing compartment has not been cooled to such a low temperature, the compressor can be controlled by the normal control.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
A description will be given based on FIG. 6 and 7 showing the entire refrigerator, the refrigerator main body 1 is provided with a refrigerator room 2, an ice making room 3 arranged on the left and right, a specification switching room 4, a freezing room 5, and a vegetable room 6 in order from the top as a storage room. Each of the chambers 2 to 6 is opened and closed by doors 7 to 11. Since the ice making room 3 and the freezing room 5 are in the same temperature zone among the above-mentioned rooms 2 to 6, the two rooms 3 and 5 are in communication.

The cooling configuration of each of the chambers 2 to 6 will be described. A cooler chamber 13 separated from the inside of the freezing chamber 5 by a cover 12 is formed at the rear of the ice making chamber 3 and the freezing chamber 5 communicating with each other. The air cooled by the cooler 14 in the cooler room 13 is cooled by the fan device 15.
First, the air is sent to an air passage 16 formed inside the cover 12. Then, a part of the cool air blown into the air passage 16 is blown out by the outlets 17 a, 1 formed in the front surface of the cover 12.
7b is supplied to the ice making room 3 and the freezing room 5 and the remaining cool air is supplied from the air passage 16 to the refrigerator room 2 and the specification switching room 4 via a damper device 18 shown in FIG. The cool air supplied and supplied to the refrigerator compartment 3 is supplied to the vegetable compartment 6 thereafter.

The cold air supplied to the ice making compartment 3, the freezing compartment 5 and the specification switching compartment 4, and the cold air supplied from the refrigerating compartment 2 to the vegetable compartment 6 are then returned to the cooler compartment 13 where they are cooled again. It circulates in the refrigerator so that it is cooled by the vessel 13. In the damper device 18, a baffle (not shown) for controlling the supply of cool air to the refrigerator compartment 2 and a baffle 18a for controlling the supply of cool air to the specification switching room 4 are provided. Opening / closing is controlled.

Of the above-mentioned storage rooms, the specification switching room 4 constitutes a cooling room whose storage temperature (cooling temperature) can be changed in a wide range, and its storage temperature is a freezing room, a partial freezing room, a chilled room, The temperature zone can be changed to each specification of the refrigerator room and vegetable room. In order to be able to switch the specification switching room 4 to a desired specification, an operation panel 19 provided in the refrigerator compartment 2 is provided with a switching means for setting the temperature (specification) of the specification switching room 4. A variable resistor 20 is provided.

As shown in FIG. 5, a resistor 20a of the variable resistor 20 is connected in series with another resistor 21, and is connected between a plus power supply + Vcc and a ground line.
A voltage corresponding to the position of the slider 20b of the variable resistor 20 is input to a microcomputer 22 as control means. And the microcomputer 22
Is the specification switching room 4 according to the input voltage from the variable resistor 20.
Detects the specifications set in. In addition, if the storage temperature zone of each specification is illustrated, for example, “−23 ° C. to -12
° C ”,“ -4.5 ° C ~
-1 ° C ”,“ more than -1 ° C to less than + 3 ° C ”in chilled room specifications,
It is “+ 3 ° C. to + 5 ° C.” for the refrigerator room specification and the vegetable room specification.

Here, the temperature control configuration of each of the chambers 2 to 6 will be described. Basically, the temperature of the freezer compartment 5 is controlled by the operation control of the compressor 23 of the refrigerating cycle, and the refrigerating compartment 2 and the specification switching compartment are provided. The temperature of 4 is the damper device 1
8 are controlled by opening and closing the baffles 8 respectively.

That is, as shown in FIG.
Temperature sensor 24 for detecting the temperature in the inside of the specification switching room 4 and the inside of the freezing room 5, and the temperature sensor 25 for the specification switching room
And a freezer compartment temperature sensor 26. The temperature sensors 24 to 26 are composed of, for example, negative characteristic thermistors, are connected in series with resistors 27 to 29 between a positive power supply + Vcc and a ground line, and the divided voltage is input to the microcomputer 22 as a detected temperature value. It has become so.

On the other hand, the motor 23a of the compressor 23 and the motor 18b of the damper device 18 are connected to an AC power supply in series with relay switches 30 and 31 as driving means. And the microcomputer 2
Reference numeral 2 controls power cutoff of the relay coils 30a and 31a of the relay switches 30 and 31 based on the detected temperatures of the temperature sensors 24 to 26 and a predetermined program. Although the illustration of the fan device 15 is omitted in FIG. 4, the operation of the compressor 23 and the operation of the
It is configured to run and stop in synchronization with the stop.

In this configuration, when the relay coil 30a is energized, the relay switch 30 is turned on,
The operation of the compressor 23 is performed. Further, when the relay coil 31a is energized, the relay switch 31 is turned on, thereby the motor 18b of the damper device 18 is turned on.
Is energized to open and close a baffle (not shown) of the refrigerator compartment 2 and a baffle 18a of the specification switching compartment 4.

Normally, the microcomputer 22 controls the operation of the compressor 23 based on the temperature detected by the freezing room temperature sensor 26 when the specification switching room 4 has a specification other than the freezing room specification, In the case of the freezer compartment specification, the control is performed based on the detected temperatures of the temperature sensors 25 and 26 for the specification switching room and the freezer room.

The microcomputer 22 compares the temperature detected by the refrigerator compartment temperature sensor 24 with a preset reference temperature, and based on the comparison result, the damper device 18.
The opening and closing of the refrigerator compartment baffle is controlled to maintain the interior of the refrigerator compartment 2 at a predetermined refrigeration temperature, and the temperature sensor 2
5 is compared with the cooling temperature set by the variable resistor 20 for setting the specifications, and based on the comparison result, the specification of the damper device 18 is maintained such that the specification switching chamber 4 maintains the set temperature. The switching room baffle 18a is opened and closed.

The refrigerator is designed to be capable of performing a rapid cooling operation in order to rapidly cool and freeze and store food in a freezer compartment. That is, as shown in FIG. 5, this refrigerator is provided with quick cooling start and interruption switches 32 and 33, and operation signals of these switches 32 and 33 are input to the microcomputer 22. When an operation signal is input from the rapid cooling switch 32, the microcomputer 22 outputs both temperature sensors 25 and 26 for the specification switching room and the freezing room.
Is programmed to operate the compressor 23 for a certain time T irrespective of the detected temperature. And
If an operation signal is input from the rapid cooling interruption switch 33 during the rapid cooling operation, the rapid cooling operation is stopped halfway.

When the first predetermined time T1 has elapsed from the end of the rapid cooling operation for the time T, the microcomputer 22
The operation of the compressor 23 is forcibly started. When the forced operation is started, the microcomputer 22 stops the normal control mode based on the detected temperatures of the temperature sensors 25 and 26 for the specification switching room and the freezing room, and detects the detected temperature of the freezing room temperature sensor 26. The compressor 23 is controlled in a refrigeration room temperature priority mode based on. The refrigeration room temperature priority mode is the first predetermined time T1 from the time when the forced operation of the compressor 23 is stopped or the time when the rapid cooling operation is ended.
The process is terminated when a longer second predetermined time T2 elapses, and thereafter returns to the normal control mode.

Next, the operation of the above configuration will be described with reference to the flow chart of FIG. 1 and the time charts of FIGS. Thereby, the content of control of the compressor 23 by the microcomputer 22 is understood in more detail. When the specification change room 4 is set to the freezer room specification,
Normally, the microcomputer 22 controls the compressor 23 based on the temperatures detected by the temperature sensors 25 and 26 for the specification room switching room and the freezing room. That is, the microcomputer 22 starts the operation of the compressor 23 when both of the temperature sensors 25 and 26 for the specification switching room and the freezing room detect the ON set temperatures Tsn and Tfn or more, respectively, and turn off the respective OFF setting. Control is performed so as to stop the compressor 23 when the temperatures Tsf and Tff are detected (Step S1, Step S1).
2 repeats "NO").

By controlling the compressor 23 in this manner, the freezing room 5 is maintained at the freezing temperature zone,
As described above, the opening and closing of the baffle 18a of the damper device 18 is controlled based on the temperature detected by the temperature sensor 25 for the specification switching room, whereby the specification switching room 4 is maintained in the freezing temperature zone.

When the rapid cooling start switch 32 is operated during the control in the normal control mode, the microcomputer 22 determines "YES" in step S2, and determines the detected temperatures of both temperature sensors 25 and 26. Starts the operation of the compressor 23 independently (step S3, t0 in FIG. 2).
At the same time, the first timer for counting the rapid cooling operation time is operated to count (step S4). During the execution of the rapid cooling operation, the microcomputer 22 continuously monitors whether or not the rapid cooling interruption switch 33 has been operated ("NO" in step S5, step S6).
Then, if the rapid cooling operation is executed for a fixed time T without being canceled halfway, the microcomputer 23 determines “YES” in step S5,
The timing operation of the first timer is stopped and reset (step S7), and the compressor 23 is stopped to terminate the rapid cooling operation (step S8, t in FIG. 2).
1).

Next, the microcomputer 22 starts the time counting operation of the second timer for counting the time elapsed from the end point t1 of the rapid cooling operation (step S9).
Then, the microcomputer 22 keeps the specification switching room (S) until a predetermined time T1 (first and third predetermined times according to claims 2 and 5) elapses from the end point t1 of the rapid cooling operation.
(In the case of "NO" in step S10). Both the temperature sensors 25 and 26 for the room and the freezer room (the room F) monitor whether or not both of them detect the set ON temperatures Tsn and Tfn or more. "And" N "in step S11.
O "). The time T1 is set to, for example, 30 minutes.

When the time T1 has elapsed without both the temperature sensors 25 and 26 detecting the ON set temperature, the microcomputer 22 determines
It is determined “YES” in step S10, and the compressor 2
3 is forcibly started (step S12, at time t2 in FIG. 2), and the control mode of the compressor 23 is switched to the freezing room temperature priority control mode based on the temperature detected by the freezing room temperature sensor 26. The refrigeration room temperature priority control mode at this time is continued until the predetermined time T2 (the second predetermined time according to the third aspect) elapses from the end point t1 of the rapid cooling operation.

In the freezing room temperature priority control mode, the microcomputer 22 is in a state of monitoring whether or not the freezing room temperature sensor 26 detects the OFF set temperature Tff ("NO" in step S13, and "NO" in step S14). "N
O "). When the freezer compartment temperature sensor 26 detects the OFF set temperature Tff, the microcomputer 22 determines “YES” in step S13, stops the compressor 23, terminates the forced cooling operation (step S15, FIG. At time t3 of 2), the second timer is stopped and reset (step S16). As described above, when the compressor 23 is stopped by detecting the OFF set temperature Tff by the freezing room temperature sensor 26, the microcomputer 22 performs the freezing room temperature priority control even before the predetermined time T2 elapses. The mode is terminated, and the process returns to the normal control mode in step S1.

As described above, the end point t1 of the rapid cooling operation
The forced cooling operation is performed at a time t2 when a predetermined time T1 has elapsed from the time t1, for example, the end time t1 of the rapid cooling operation.
When the specification change room damper 18a is closed and the temperature of the specification change room 4 tends to increase, the abnormal temperature rise of the specification change room 4 can be prevented. In addition, since this forced cooling operation is started at a time when the temperature of the freezing compartment 4 does not rise so much, the cooling operation is cooled to the off-setting temperature Tff in a relatively short time, and the cooling is performed to the off-setting temperature Tff. , The forced cooling operation is stopped. As a result, the forced cooling operation is not continued for a long time,
There is no danger of falling into a supercooled state.

If the freezing room temperature sensor 26 does not detect the off set temperature Tff even after the predetermined time T2 has elapsed, the freezing room temperature priority control mode is terminated at the elapse of the time T2 (step S14). "YES"), and stop and reset the second timer (step S16).
Then, the process returns to the normal control mode of step S1. The reason that the freezer compartment 5 is not cooled to the off set temperature Tff within the time period T2 is considered to be because the temperature of the freezer compartment 5 or the entire refrigerator has risen for some reason. It is better to return the temperature to other rooms to ensure the temperature.

As shown in FIG. 3, before the predetermined time T1 elapses from the end time t1 of the rapid cooling operation, both the temperature sensors 25 and 2 for the specification switching room and the freezing room are used.
6 may detect the set ON temperature respectively (at time t4). In this case, the microcomputer 22 determines “YES” in the step S11, stops and resets the second timer in the next step S17 (step S13), and shifts to the step S1. Then, the microcomputer 22 starts the operation of the compressor 23 under the normal control mode, and the temperature sensors 25 and 26 are both turned off at the off set temperature T.
When sf and Tff are detected, the compressor 23 is stopped, and thereafter, the compressor 23 is operated and stopped based on the temperatures detected by the temperature sensors 25 and 26 until the rapid cooling switch 32 is turned on again.

As described above, before the predetermined time T1 elapses,
The fact that both the temperature sensors 25 and 26 for the specification switching room and the freezing room detect the set ON temperatures respectively means that the freezing room 2 and the specification switching room 4 are not so much even if the rapid cooling operation is performed. Since the cooling has not been performed, the compressor 23 is operated under normal control until both the temperature sensors 25 and 26 detect the off-off set temperatures Tsf and Tff.

On the other hand, as shown in FIG. 4, the rapid cooling operation may be canceled by operating the rapid cooling interruption switch 33 (t5) while the rapid cooling operation is being performed (before the time T has elapsed). . In this case, when the rapid cooling switch 33 is operated, the microcomputer 22 proceeds to step S6.
Is determined to be "YES", and the first timer is stopped and reset in the next step S18. At the same time, the microcomputer 22 determines in step S19 that the compressor 2
3 is stopped to stop the rapid cooling operation.

Thereafter, the microcomputer 22 determines whether or not the temperature detected by the freezer compartment temperature sensor 26 is lower than or equal to the off set temperature Tff (step S20). Is the step S20
Is "NO", and returns to the normal control mode of step S1.

If the temperature detected by the freezer compartment temperature sensor 26 is equal to or lower than the OFF set temperature, the microcomputer 22 determines "YES" in step S20, and determines the third in step S21. The timer operation is started, and a state of monitoring whether or not a predetermined time T3 has elapsed from the time point t5 when the rapid cooling operation is interrupted is monitored (step S22). When the time T3 has elapsed from the time t3 when the rapid cooling operation was interrupted, the microcomputer 22 proceeds to step S3.
22 is determined to be "YES", and in the next step S23, the third timer is stopped and reset, and
At 24, the operation of the compressor 23 is forcibly started.

At the same time, the microcomputer 22 enters the freezing room temperature priority mode and enters a state of monitoring whether or not the freezing room temperature sensor 26 has detected the off set temperature Tff in step S25. When the freezer compartment temperature sensor 26 detects the OFF set temperature Tff, the microcomputer 2
2 judges "YES" in step S25, stops the compressor 23 in the next step S26, and returns to the normal control mode in step S1.

Even if the rapid cooling operation is interrupted as described above, if the temperature in the freezing room 5 is extremely low (Tff or less), the operation of the compressor 23 is forcibly performed in the freezing room temperature priority mode. While preventing overcooling of the freezer compartment 5,
It is possible to prevent abnormal temperature rise in other rooms.

The present invention is not limited to the embodiment described above and shown in the drawings, but can be extended or modified as follows. The refrigerating room temperature priority control mode does not end when the forced operation of the compressor 23 is stopped, but may continue until the time T2 elapses. Compressor 2 after interrupting rapid cooling operation
In the forced operation 3 (from step S24 to step S26), if the forced operation is continued for a predetermined time (fourth predetermined time), the mode may be switched from the freezer compartment sound priority mode to the normal control mode.

[0041]

As is apparent from the above description, the present invention controls the compressor based on the temperature detected by the freezing room temperature sensor when the rapid cooling operation is performed, so that the compressor is forcibly operated. Then, the temperature of the freezer compartment, which is originally in a low temperature state, is cooled to the off-set temperature or less in a short time by the rapid cooling operation, and the operation of the compressor does not continue for an abnormally long time, and becomes a supercooled state. An excellent effect that this can be prevented can be obtained.

[Brief description of the drawings]

FIG. 1 is a flowchart of control contents showing an embodiment of the present invention.

FIG. 2 is a time chart showing an example of a temperature change of each part.

FIG. 3 is a time chart showing another example of a temperature change of each part.

FIG. 4 is a time chart showing still another example of the temperature change of each part.

FIG. 5 is an electric circuit diagram

FIG. 6 is a front view of the refrigerator.

FIG. 7 is a longitudinal side view of the same.

FIG. 8 is a longitudinal sectional side view of a specification switching room portion.

FIG. 9 is a diagram corresponding to FIG. 2 for explaining a conventional problem.

[Explanation of symbols]

In the figure, 2 is a refrigerator room, 3 is an ice making room, 4 is a specification switching room, 5 is a freezing room, 22 is a microcomputer (control means), 2
3 is a compressor, 25 is a temperature sensor for a specification switching room, 2
Reference numeral 6 denotes a freezer compartment temperature sensor.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toshiyuki Shibuya 1-6 Ota Toshiba-cho, Ibaraki-shi, Osaka Inside the Toshiba Osaka plant

Claims (5)

[Claims] A freezer compartment; a specification switching room capable of setting a storage temperature to a plurality of storage temperature zones including a freezing temperature zone; a freezer compartment temperature sensor for detecting a temperature in the freezer compartment; And a control means for controlling the compressor based on the detected temperatures of the temperature sensors for the freezing compartment and the specification switching chamber, and the control means, When a rapid cooling operation in which the compressor is forcibly operated for a predetermined time in order to rapidly cool the food in the freezer compartment is performed, after controlling the compressor based on the temperature detected by the freezer compartment temperature sensor, A refrigerator configured to return to normal control for controlling the compressor based on the temperatures detected by the two temperature sensors. 2. A freezer compartment; a specification switching room capable of setting a storage temperature to a plurality of storage temperature zones including a freezing temperature zone; a freezer compartment temperature sensor for detecting a temperature in the freezer compartment; A temperature sensor for the specification switching room for detecting the temperature of the air conditioner, and a control means for controlling the compressor based on the detected temperatures of both temperature sensors for the freezing room and for the specification switching room. When a rapid cooling operation is performed for forcibly operating the compressor for a predetermined time in order to rapidly cool the food in the freezer compartment, a time when a first predetermined time has elapsed after the rapid cooling operation was stopped. After forcibly starting the operation of the compressor in the forcible operation of the compressor based on the temperature detected by the freezer compartment temperature sensor, the compressor is connected to the two temperature sensors. Refrigerator, characterized in that it is configured to return to the normal control for controlling on the basis of the detected temperature. 3. The control means controls the compressor based on the temperature detected by the freezer compartment temperature sensor until the second predetermined time elapses after the rapid cooling operation is stopped, and thereafter returns to the normal control. The refrigerator according to claim 1 or 2, wherein the refrigerator is configured as follows. 4. The control means detects the temperature of the freezing room temperature sensor when the freezing room temperature sensor detects a temperature lower than a temperature at which the compressor is stopped, even if the rapid cooling operation is stopped halfway. 2. The compressor according to claim 1, wherein the compressor is controlled based on
A refrigerator according to any one of claims 1 to 3. 5. The control means according to claim 1, wherein when the operation of the compressor is not started by the normal control within a third predetermined time after the stoppage of the rapid cooling operation, the operation of the compressor based on the temperature detected by the freezer compartment temperature sensor is performed. The refrigerator according to any one of claims 1 to 4, wherein the refrigerator is configured to control operation.