JP2001289552A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem where a conventional refrigerator needs a wind direction switching device in addition to a motor-driven damper to adjust an amount of cold air fed in a refrigerating chamber, thus the number of parts is increased and device constitution is complicated, and further the problem that feed of cold air only to a target zone is impracticable. SOLUTION: A refrigerator is provided with an air passage situated in one zone and coupled to only an air outlet and situated at each zone, and further comprises a regulating device capable of feeding cold air cooled by a cooler by connecting it to some one of the air passages; and a control means to effect control of connection of the regulating device to which of the air passages.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forced-ventilated refrigerator, and more particularly to a technique for efficiently sending cool air to each zone of a refrigerator compartment.

[0002]

2. Description of the Related Art FIG. 9 is a cross-sectional view of a conventional refrigerator described in Japanese Patent Application Laid-Open No. 5-71849 as viewed from the side. In FIG. 9, reference numeral 101 denotes a refrigerator main body, an outer box 102 and an inner box 1.
03, and a heat insulating material 104 filled between the outer box 102 and the inner box 103. 105 is the main body 1
01 is a partition wall that partitions the interior of the compartment 01 into upper and lower compartments.
The interior of the refrigerator compartment 107 is divided into a plurality of zones 109a, 109b, and 109c by two shelves 108.

[0003] Reference numeral 110 denotes a compressor of a refrigeration cycle housed at the bottom rear of the main body 101. 111 is the freezing room 10
6 is a cooler of a refrigeration cycle housed on the back of
Is a blower for forcibly ventilating the cool air cooled by the cooler 110 into the freezing compartment 106 and the refrigerating compartment 107. 103
Is a ventilation duct for guiding cool air to the refrigerator compartment 107;
Is an electric damper provided at the entrance of the refrigerating compartment 107 for adjusting the inflow of cold air by an electric input. 119 is a discharge duct which communicates with each zone 109a, 109b, 109c from the electric damper 114, 116a, 116b, 11
Reference numeral 6c denotes a discharge port opened in each of the zones 109a, 109b, and 109c. 117 is a temperature sensor provided in the freezing room 106, and 118a, 118b, and 118c are zones 1
It is a temperature sensor provided in a part of each of 09a, 109b, and 109c.

Reference numeral 120 denotes a wind direction switching device provided in the middle of the discharge duct 119. 121 is the electric damper 11
4 is an auxiliary blower provided between the wind direction switching device 120 and the wind direction switching device 120. Further, the temperature sensor 117 and the temperature sensor 118
a, 118b and 118c are connected to the input terminals of the microcomputer, and the compressor 110, the blower 112, the electric damper 114, the wind direction switching device 120, the auxiliary blower 121, and the driving means such as the electromagnetic relay for driving them are connected to the microcomputer. Output terminal.

In such a refrigerator, when the temperature of a zone for storing foods (for example, the zone 109a) rises, the wind direction switching device 120 rotates in the direction of the zone, and the blower 112 And auxiliary blower 1
Since a large amount of cool air ventilated by 21 is sent intensively into the zone 109a through the discharge port 116a,
Newly stored food can be cooled in a short time.

[0006]

However, in the conventional refrigerator, in addition to the electric damper 114 for adjusting the amount of cool air sent from the freezer compartment 106 to the refrigerator compartment 107, a wind direction switching device 120 is required. However, there is a problem that the number of devices increases and the device configuration becomes complicated. Further, by changing the direction of the wind, the wind is controlled so as to concentrate the air in a certain zone.
6a, 106b, and 106c, there is a certain distance, so that there is a problem that not all the cool air can be sent only to the target zone.

The present invention has been made to solve the above-mentioned problem, and provides a refrigerator capable of reducing the number of parts and simplifying the configuration of the apparatus, and capable of intensively sending cool air to one zone. The purpose is to do.

[0008]

In the refrigerator according to the present invention, each zone is provided with an air path connected only to an outlet arranged in one zone, and further connected to one of the air paths. Thus, the air conditioner is provided with an adjusting device capable of sending the cool air cooled by the cooler to only one zone, and control means for controlling which air path the adjusting device is connected to.

Further, at least one of the plurality of divided zones is provided with a temperature sensor for detecting a temperature in the zone, and the control means controls the adjusting device based on the temperature detected by the temperature sensor. It is assumed that the connection to the road is controlled.

[0010] Further, a temperature sensor for detecting the temperature in the zone is provided in each of the plurality of divided zones, and the control means moves the adjusting device to any air path based on the temperature detected by the temperature sensor. The connection is controlled.

Furthermore, one air path and at least one other
The two air paths were connected by a slit having a smaller diameter than the air path.

Further, there is provided an operation panel having selection means for allowing a user to select a zone, and setting means for setting a cool air blowing state in the zone selected by the selection means.
The control means controls which air path the adjusting device is connected to based on the setting on the operation panel.

Further, a receiving unit for receiving a setting as a signal from a remote controller having selection means for allowing a user to select a zone and setting means for setting a cool air blowing state in the zone selected by the selection means. The control means controls which air path the adjusting device is connected to based on the signal received by the receiving unit.

Further, coupling means for coupling to the telephone line, modulation / demodulation means for performing modulation / demodulation, communication means for exchanging information with the telephone through the telephone line, and analysis means for analyzing control information sent from the telephone. The control means controls which air path the adjustment device is connected to based on the control information analyzed by the analysis means.

Further, in the refrigerator according to the present invention, each zone is provided with an air path connected only to the outlet arranged in one zone, and further, a part of the curved surface of the cylinder is cut out. A drum having a first opening, a second opening formed by cutting out another part, a shaft fixed to a flat side surface of the drum, and rotating the shaft. A shaft rotating device that connects the first opening to any one of the connection ports of the air path and allows the second opening to be arranged in a space; and a control unit that controls a rotation angle of the shaft rotating device. It was provided with.

Further, a temperature sensor for detecting the temperature in the zone is provided in each of the plurality of zones, and the control means determines the rotation angle of the shaft rotation device based on the temperature detected by the temperature sensor. It was controlled.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a cross-sectional view of a refrigerator according to Embodiment 1 of the present invention as viewed from a side. In FIG. 1, reference numeral 1 denotes a refrigerator main body. 2 is an outer box of the refrigerator, 3 is an inner box of the refrigerator, and 4 is a heat insulating material. Reference numeral 5 denotes a partition wall which partitions the inside of the refrigerator main body 1 into upper and lower portions, and a refrigerator compartment 6 is formed at an upper portion and a freezing compartment 7 is formed at a lower portion. In addition, the refrigerator compartment 6 includes a first zone 9a, a second zone 9b, a third zone 9c, and a fourth zone 9 by three shelves 8a, 8b, and 8c.
Are divided into four zones 9d.

Reference numeral 10 denotes a compressor of a refrigeration cycle housed at the bottom rear of the main body 1. Reference numeral 11 denotes a refrigerating cycle cooler housed in a space formed by the rear panel of the freezing room 7 and the inner box 3, and 12 forces the cool air cooled by the cooler 11 to the refrigerating room 6 and the freezing room 7. It is a blower for ventilation. Reference numeral 13 denotes a back panel provided on the back of the refrigerator compartment 6. The rear panel 13 has a first unique air path 14a for sending cool air to each zone, and a second unique air path 14a.
b, a third unique air path 14c, and a fourth unique air path 14d. Further, a lower portion of the rear panel 13 protrudes inward of the refrigerator compartment 6, and an air volume adjusting device 15 is disposed inside the portion. Each zone has a first temperature sensor 16a for detecting its temperature,
Temperature sensor 16b, a third temperature sensor 16c, and a fourth temperature sensor 16d. Reference numeral 17 denotes a control board including a microcomputer, which is connected to each temperature sensor and controls the operation of the air volume adjusting device 15.

Next, the configuration of the air volume adjusting device 15 will be described with reference to FIG. FIG. 2 is an external view in a state where the air volume adjusting device 15 is detached from the main body 1. The air volume adjusting device 15 mainly includes a drum 15a, a frame 15b, and a shaft rotating device 15c. The drum 15a
The cylindrical shape is turned sideways, the lower part of the curved surface of the cylinder is cut open at about 2/5, and the upper part is cut out at about 1/20 and opened. In the upper opening,
A valve body 15d protruding outside from this opening is formed integrally. Further, a shaft 15e is fixed to the center of each of the planar side surfaces of the drum 15a, and is rotatably fixed to the frame 15b. In addition, this shaft 1
One of 5e is inserted into shaft rotation device 15c via frame 15b. When the air volume adjusting device 15 is installed in the rear panel 13, the frame 1
5b is fixed, and the shaft rotation device 15c rotates the drum 15a by rotating the shaft 15e inserted therein. Also, about 1/1 of the lower side of the drum 15a
Numeral 0 is exposed to the space formed by the rear panel of the freezer compartment 7 and the inner box 3.

Next, the configuration of the rear panel 13 and each unique air path will be described with reference to FIG. FIG. 3 is a partial cross-sectional view when the back panel 13 is viewed from the refrigerator compartment 6 side. The first unique air path 14a, the second unique air path 14b, the third unique air path 14c, and the fourth unique air path 14d formed on the rear panel 13 blow the cool air formed in each zone. It is connected to the outlet. That is, the first unique air path 14a blows cool air to the first zone 9a at the first outlet 14a1, and the second unique air path 14b blows cool air to the second zone 9b. The second outlet 14b1 has a third unique air path 14c, the third zone 9c has a third outlet 14c1 for blowing cool air, and the fourth air path 14d has a fourth unique air path 14d.
Is a fourth outlet 1 for blowing cool air into the fourth zone 9d.
It is connected to 4d1. Further, each unique air path is connected to the air separation means 18, and further, an air volume adjusting device 15 is connected to the opposite side of the air separation means 18 to which the independent passage is connected. In addition, the individual wind paths are formed at positions that are substantially the same distance from each other when viewed from the surface of the rear panel 13 on the side of the refrigerator compartment 6 so as not to cross each other. Therefore, the back panel 13 can be made thin.

Next, the configuration of the air separating means 18 and the details of the connection with each unique air path and the air volume adjusting device 15 will be described with reference to FIG. FIG. 4 is a cross-sectional view of the vicinity of the separating means 18 as viewed from the side of the refrigerator. Ventilation separation means 18
Are four connection air passages stacked so as to protrude toward the inside of the refrigerator compartment 6, that is, a first connection air passage 18a, a second connection air passage 18b, and a third connection air passage 18b from the rear side of the refrigerator. It has a connection air path 18c and a fourth connection air path 18d. In addition, one opening of each connection air path is connected to the first unique air path 14.
a, connected to the second unique air path 14b, the third unique air path 14c, and the fourth unique air path 14d, the other opening forms a layer, and is arranged near the drum 15a of the air volume adjusting device 15. In. The diameter of the other port is the same as the diameter of the valve body 15d.

Next, the operation will be described. When the refrigerator is turned on, a cooling cycle including the compressor 10 and the cooler 11 operates, and the temperature of the air near the cooler 11 becomes low. A part of the low-temperature cold air is sent into the refrigerator compartment 7 by the operation of the blower 12, and the rest is sent upward. Here, if the lower opening of the drum 15a of the air volume adjusting device 15 faces the space formed by the back panel of the freezer and the inner box 3, the cool air enters the inside of the drum 15a. If the drum 15a is rotated so that the lower opening does not face the space formed by the back panel of the freezer and the inner box 3,
Cold air is no longer sent to the refrigerator compartment 6. In the air volume adjusting device 15, the shaft rotating device 15 c rotates the drum 15 a in accordance with a rotation angle command from the control board 17, and moves the valve body 15 d from the first connection air channel 18 a of the air separation unit 18 to the fourth connection air channel. 18d. Thereby, cool air is sent from the inside of the drum 15a to the connection air passage through the valve body 15d, and is sent to the zone of the refrigerator compartment 6 through the original air passage.

The control board 17 is connected to the first to fourth temperature sensors 16a to 16d.
The rotation of the shaft rotation device 15c is controlled according to the temperature change in each zone. For example, when the temperature of the second zone 9b rises and exceeds the allowable range because warm food is put in the second zone 9b, the valve body 15d is moved from the control board 17 to the shaft rotating device 15c. A rotation angle command is issued to connect to the connection air path 18b of the shaft rotation device 15.
c stops at a position where the drum 15a is rotated to connect the valve body 15d to the second connection air passage 18b. When the temperatures of all the zones are within the allowable range, that is, when the temperature distribution is appropriate, the shaft rotating device 15c sequentially moves from the first connection air passage 18a to the fourth connection air passage 18d. An operation for connecting the valve body 15d is performed. Here, the first zone 9a located above the refrigerating compartment 8 is assumed to be hard to cool due to the flow of cold air, and may be controlled so that the blowing time of the upper zone is longer than the blowing time of the lower zone. It is possible.

As described above, by providing a unique air path to each zone for each zone and controlling which unique air path the cool air is sent to by the air volume adjusting device, it corresponds to a conventional wind direction switching device. Nothing is required, the configuration of the entire refrigerator can be simplified, and cool air can be intensively sent to one zone. In this embodiment, a refrigerator having a freezer compartment at the lower portion and a refrigerator compartment at the upper portion is intended, but a refrigerator having a refrigerator compartment at the lower portion and a freezer compartment at the upper portion may be reversed. Good. In this case, the arrangement in FIG. 1 is reversed.

Further, in this embodiment, the outlets with the unique air paths are provided only on the back of each zone.
You may make it provide also on a shelf surface, a floor surface, and an upper surface. In this way, by sending out cool air so as to wrap each zone, even when food is packed, the efficiency of temperature adjustment of the zone can be further improved.

Embodiment 2 FIG. FIG. 5 is a partial cross-sectional view showing the configuration of the unique air path in the rear panel of the refrigerator according to the second embodiment of the present invention. In FIG. The path 14d is provided with a thin slit for connecting each path. In FIG. 5, the same reference numerals are given to the same and corresponding components as those in FIG.

In FIG. 5, reference numeral 19a denotes a first slit for connecting the first unique air path 14a and the second unique air path 14b,
9b is a second slit connecting the first unique air path 14b and the third unique air path 14c, and 19c is a third unique air path 1
This is a third slit connecting 4c and the fourth unique air path 14d. The first slit 19a, the second slit 19b, and the third slit 19c have the same shape, and the diameter is smaller than that of the original air path.

Next, the operation in such a configuration will be described. For example, when the temperatures of all the zones are within the allowable range, that is, when the temperature distribution is proper, the shaft rotating device 15c stops by connecting the first connection air passage 18a and the valve body 15d. . In this case, cool air is sent to the first unique air passage 14a via the drum 15a. This cool air is sent to the second unique air passage 14b through the first slit 19a. Further, the air is sent to the third unique air passage 14c through the second slit 19b. Further, the air is sent to the fourth unique air path 14d through the third slit 19c.

In general, when the same amount of cool air is flowed through each unique air passage, the temperature of the cool air sent increases in a zone farther from the cooler, and the amount decreases. Therefore, with such a configuration, the amount of the cool air to be sent can be larger in the upper zone and smaller in the lower zone, and eventually, the cooling efficiency by the cool air discharged to each zone can be made almost uniform. . In addition, if the temperature of a certain zone rises due to the addition of warm food, it is possible to rapidly cool only that zone by connecting a valve body to the connection air path corresponding to that zone. This is the same as in the first embodiment.
In this case, it is necessary to close each slit.

By doing so, it is not necessary to rotate the drum 15a during stable operation, and the reliability such as the life of the air volume adjusting device is improved.

Embodiment 3 FIG. 6 is a diagram showing a configuration of a refrigerator compartment according to Embodiment 3 of the present invention. In FIG. 1, instead of disposing a temperature sensor for each zone,
They are arranged one by one. In FIG. 6, the same and corresponding components as those in FIG. 1 are denoted by the same reference numerals.

In FIG. 6, a first temperature sensor 16a is arranged in the first zone 9a, and a third temperature sensor 16c is arranged in the third zone 9c. Next, control of cool air sent to each zone in this configuration will be described with reference to the flowchart of FIG. First, in the control board 17, the first
The temperature detected from the temperature sensor 16a and the third temperature sensor 16c is monitored. Here, when the temperature sensor detects that the temperature sensor has detected a rapid temperature rise (step (hereinafter, referred to as “S”) 1), the control board 17 instructs the shaft rotation device 15c of the rotation angle, The valve body 15d is rotated to connect the valve body 15d to the connection air passage corresponding to the zone where the rapid temperature rise is detected, and cool air is intensively sent to the zone for a certain time (S2). For example, when the third temperature sensor 16c indicates a rapid temperature rise, the valve body 15d is connected to the third connection air passage 18c.

After the elapse of a predetermined time, the supply of cool air to the zone is stopped, and the temperature condition is monitored (S3). In general, for example, when warm food is placed in the third zone 9c, the temperature at the third temperature sensor 16c rapidly rises, but the cool air can be cooled rapidly by intensively sending cool air, and the cool air can be cooled. Stopping the feed does not cause a rapid temperature rise again. However, even when warm food is placed in the second zone 9b, the heat is transmitted to the third zone 9c via the shelf 8b, and a rapid temperature rise occurs.
In this case, the temperature of the hot food cannot be directly reduced even if the cooling is suddenly performed by intensively sending the cool air into the third zone 9c. A rise will occur.

Therefore, it is checked in step S3 whether a sharp rise in temperature occurs again after the intensive release of cold air. If the temperature rises again, it is considered that the rise in temperature was caused by placing warm food in the zone. Judgment is made, and the state of the upper and lower temperature sensors is checked (S4). For example, the first temperature sensor 16a
Is the temperature detected in. Here, it is checked whether the temperature has increased in one of the upper and lower temperature sensors (S5),
If there is, cool air is intensively sent to a zone closer to that one for a certain period of time (S6). For example, the first temperature zone 16
If the temperature rises in a, it is highly likely that warm food has been placed in the second zone, so that the cool air is intensively discharged to the second zone. If the tendency is not observed, the cool air is intensively sent to either the upper or lower position for a certain period of time (S7).

In S6 or S7, after sending cool air for a certain period of time, sending cool air to the zone is stopped, and it is checked whether a sharp rise in temperature occurs again (S8). Here, when the recurrence occurs, the cool air is intensively sent to the zone located on the opposite side for a certain period of time (S9). For example, even after the cool air is intensively sent to the second zone 9b, if the temperature of the third temperature sensor 16c rises, the cool air is intensively sent to the fourth zone 9d.

Thereafter, it is checked again whether a sharp rise in temperature occurs (S10). If the temperature rises again, the process returns to S2 again and the subsequent steps are performed. If the rapid temperature rise does not recur in S3, S8, and S10, the operation returns to the normal operation.

In this manner, the number of temperature sensors can be reduced, and the configuration of the refrigerator can be simplified.

In this embodiment, every other temperature sensor is arranged, but every other or every third temperature sensor may be arranged. In this case, a similar control method can be used.

Embodiment 4 It should be noted that the user may be able to freely set how the control is performed by the control board. FIG. 8 is a diagram illustrating a temperature control panel of a refrigerator according to Embodiment 4 of the present invention. The information set here is stored in the control board, and the control board controls the air volume adjusting device based on this setting.

In FIG. 8, reference numeral 20 denotes a temperature control room selection button for selecting a target zone. A rapid cooling button 21 indicates rapid cooling. Reference numeral 22 denotes a remote control light receiving unit. In this temperature control panel, for example, by pressing a temperature control room selection button 20, a zone to be quenched is selected, and when the quenching button 21 is pressed, the information is transmitted to the control board 17, and the zone where the control board 17 is designated is designated. Will be sent to the air volume adjusting device to rapidly cool the air. By doing so, the user can adjust the temperature in the refrigerator. This operation is performed, for example, by providing a temperature control room selection button and a quenching button on a separate remote controller, converting the settings on the remote controller into signal information, sending the signal information to the remote control light receiving unit 22, and transmitting the information to the control board 17. become.

Further, the connection may be made with a telephone line or the like, and the setting may be made from outside the house by a portable telephone or the like. In this case, the coupling means for newly coupling to the telephone line, the modulation / demodulation means for modulating / demodulating, the communication means for communicating with the telephone connected through the telephone line, and the control information received by this communication means are analyzed. It is necessary to newly provide an analyzing means for performing the rotation angle command based on the analyzed control information. Further, it is necessary to set a telephone number in the communication means. Thus, for example, the refrigerator can be controlled from a remote place.

[0042]

As described above, according to the present invention, the apparatus can be simplified, and the cool air can be intensively sent to each zone.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a refrigerator according to Embodiment 1 of the present invention as viewed from a side.

FIG. 2 is an external view of an air volume adjusting device.

FIG. 3 is a front sectional view of the refrigerator according to Embodiment 1 of the present invention as viewed from the refrigerator compartment side.

FIG. 4 is a cross-sectional view of the refrigerator according to Embodiment 1 of the present invention, as viewed from a side.

FIG. 5 is a front sectional view of a refrigerator according to Embodiment 2 of the present invention as viewed from the refrigerator compartment side.

FIG. 6 is a configuration diagram of a refrigerator room of a refrigerator according to Embodiment 3 of the present invention.

FIG. 7 is a flowchart showing cold air control in a refrigerator according to Embodiment 3 of the present invention.

FIG. 8 is a diagram showing a temperature control panel in a refrigerator according to Embodiment 4 of the present invention.

FIG. 9 is a cross-sectional view of a conventional refrigerator as viewed from the side.

[Explanation of symbols]

1 body, 2 outer box, 3 inner box, 4 heat insulator,
5 partition wall, 6 refrigerator compartment, 7 freezer compartment, 8a ・ 8b
8c shelf, 9a first zone, 9b second zone, 9c third zone, 9d fourth zone,
10 Compressor, 11 Cooler, 12 Blower, 1
3 back panel, 14a first original airway, 14a1
1st outlet, 14b 2nd original airway, 14b
1 second outlet, 14c third original wind path, 14
c1 3rd outlet, 14d 4th original wind path, 1
4d1 fourth outlet, 15 air volume adjusting device, 15
a drum, 15b frame, 15c shaft rotating device, 15d valve body, 15e shaft portion, 16a first temperature sensor, 16b second temperature sensor, 16c third temperature sensor, 16d fourth temperature sensor, 17
Control board, 18 air separation means, 18a first connection air path, 18b second connection air path, 18c third connection air path, 18d fourth connection air path, 20 temperature adjustment chamber selection button, 21 rapid cooling button , 22 Remote control receiver

Claims (9)

[Claims] 1. A freezer compartment, a refrigerator compartment, a cooler installed behind the freezer compartment, a shelf dividing the refrigerator compartment into a plurality, a zone divided into a plurality by the shelf, In a refrigerator provided with an outlet for blowing cool air disposed in each of the zones, an air path connected only to an outlet disposed in one zone is provided for each zone, and further, any one of the air paths An adjusting device that can send the cool air cooled by the cooler to only one zone by being connected to one, and a control unit that controls which air path the adjusting device is connected to are provided. A refrigerator characterized by that: 2. A temperature sensor for detecting a temperature in at least one of a plurality of zones formed in a plurality of zones, and a control unit controls an adjusting device based on the temperature detected by the temperature sensor. The refrigerator according to claim 1, wherein control is performed to determine whether the refrigerator is connected to an air passage. 3. A temperature sensor for detecting a temperature in each of the plurality of divided zones is provided.
2. The refrigerator according to claim 1, wherein the control unit controls which air path the adjustment device is connected to based on the temperature detected by the temperature sensor. 3. 4. The air passage and one or more other air passages are connected by a slit having a diameter smaller than that of the air passage. A refrigerator according to claim 1. 5. An operation panel comprising: a selection unit that allows a user to select a zone; and a setting unit that sets a cool air blowing state in the zone selected by the selection unit.
The refrigerator according to any one of claims 1 to 4, wherein the control unit controls which air path the adjustment device is connected to based on the setting on the operation panel. 6. A receiver for receiving the setting as a signal from a remote controller having selection means for allowing a user to select a zone, and setting means for setting a cooling air blowing state in the zone selected by the selection means. And a control means,
The refrigerator according to any one of claims 1 to 4, wherein control is performed to determine to which air path the adjusting device is connected based on a signal received by the receiving unit. 7. A coupling means for coupling with a telephone line, a modulation / demodulation means for performing modulation / demodulation, a communication means for exchanging information with a telephone through the telephone line, and analyzing control information sent from the telephone. 5. An analysis unit, wherein the control unit controls which air path the adjustment device is connected to based on the control information analyzed by the analysis unit. A refrigerator according to claim 1. 8. A freezer compartment, a refrigerator compartment, a cooler installed in a space formed behind the freezer compartment, a shelf for dividing the refrigerator compartment into a plurality, and a plurality of compartments formed by the shelf. Zone, and a refrigerator provided with an outlet for blowing cool air disposed in each of the zones, provided in each zone with an air path connected only to the outlet disposed in one zone, A drum having a first opening formed by cutting a part of the curved surface of the cylinder and a second opening formed by cutting the other part; and a planar shape of the drum. By rotating the shaft portion fixed to the side surface and the shaft portion, the first opening is connected to any one of the connection ports of the air passage, and the second opening is arranged in the space. Shaft rotation device, and the rotation angle of the shaft rotation device A refrigerator, comprising: control means for controlling. 9. A temperature sensor for detecting a temperature in each of the plurality of divided zones is provided,
The refrigerator according to claim 7, wherein the control unit controls a rotation angle of the shaft rotation device based on a temperature detected by the temperature sensor.