JP3533326B2 - Refrigerator control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the shortening of refrigerating and ice making period of time without collapsing a cooling balance, by a method wherein cold air is circulated and ventilated into a freezing chamber from a cooler, and a mixing fan is arranged in the freezing chamber while a room temperature around a refrigerator is measured so as to reduce the rotation of the mixing fan when the detected room temperature is high. SOLUTION: The number of rotations of a mixing fan 60 is controlled by an indoor temperature, detected based on an indoor temperature sensor 516. The operation rate of a compressor 508 is increased when the indoor temperature is high and the sending amount of cold air is increased whereby the temperature of the freezing chamber can be maintained even when the number of rotations of the mixing fan 60 is not increased. The number of rotations of the mixing fan 60 is changed by the indoor temperature, detected by the indoor temperature sensor 516 during normal operation. When the indoor temperature is lower than 20 deg.C, the fan 60 is operated so as to be synchronized with the operation of the compressor 508 to maintain a refrigerating capacity. When the indoor temperature is lower than 20 deg.C, the fan 60 is operated continuously for 30 minutes after stopping the compressor. The number of rotations of the mixing fan 60 is increased proportionally based on an indoor temperature detected by a freezing chamber temperature sensor 512.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling a refrigerator having a freezer compartment.

[0002]

2. Description of the Related Art In a conventional refrigerator, an evaporator cover is provided on the rear surface of the body of the refrigerator, and a cooler is provided between the rear surface of the evaporator cover and the inner box, and cool air from the cooler is circulated to at least a freezer compartment. There was a blower for the cooler.
Then, the air blower for the cooler is operated into each room such as a refrigerating room, a freezing room, an ice making room, and a vegetable room to send cold air from the opening of the evaporation cover.

[0003]

However, the above structure has the following problems.

First, in order to shorten the freezing time and the ice making time, it is conceivable to enlarge the opening of the evaporation cover to increase the amount of cool air to be fed or to increase the number of rotations of the blower for the cooler. These methods have problems that the cooling balance is lost and noise is generated.

It is also conceivable to provide a second blower different from the cooler blower near the cooler to increase the amount of cool air to be fed, but the cool air will be pulled by this second blower. As a result, there is a problem that the cooling balance is deteriorated and the refrigerating room cannot be cooled.

In view of the above problems, the present invention provides a refrigerator control method which can easily reduce the freezing time and ice making time without disturbing the cooling balance.

[0007]

According to a first aspect of the present invention, there is provided a refrigerator control method, in which a cooler blower that circulates cool air from a cooler to at least a freezer, a stirrer disposed in a freezer, and a refrigerator. A refrigerator having room temperature detecting means for measuring a room temperature which is an ambient temperature, wherein the higher the room temperature detected by the room temperature detecting means is, the lower the rotation speed of the stirring blower is.

According to a second aspect of the present invention, there is provided a method for controlling a refrigerator, in which a cooler blower that circulates cool air from a cooler to at least a freezer, a stirrer provided in the freezer, and a freezer temperature of the freezer are measured. In the refrigerator having the freezing room temperature detecting means, the higher the freezing room temperature detected by the freezing room temperature detecting means, the higher the number of revolutions of the stirring blower.

According to a third aspect of the present invention, there is provided a refrigerator control method, wherein a cooler blower that circulates the cool air from the cooler to at least the freezer compartment, a stirrer provided in the freezer compartment, and a freezer compartment temperature of the freezer compartment are set. In the refrigerator having the freezing room temperature setting means, the higher the freezing room temperature set by the freezing room temperature setting means, the higher the rotation speed of the agitation blower.

According to a fourth aspect of the present invention, there is provided a control method for a refrigerator, in which a cooler blower that circulates cool air from a cooler to at least a freezer, a stirrer disposed in the freezer, and a cooler heater that heats the cooler. In a refrigerator having a, the number of rotations of the stirring blower during a predetermined time before heating the cooler by the cooler heater to perform defrosting is higher than the number of rotations of the stirring blower during normal operation. is there.

According to a fifth aspect of the present invention, there is provided a method for controlling a refrigerator in which a cooler blower that circulates cool air from a cooler to at least a freezer, a stirrer disposed in the freezer, and a cooler heater that heats the cooler. In the refrigerator having the above, the stirring blower is operated during the defrosting operation in which the cooler heater heats the cooler to perform defrosting.

According to a sixth aspect of the present invention, there is provided a method for controlling a refrigerator in which a cooler blower that circulates cool air from a cooler to at least a freezer, a stirrer disposed in the freezer, and a cooler heater that heats the cooler. In the refrigerator having, the rotation number of the stirring blower during the defrosting operation in which the cooler is heated by the cooler heater to perform defrosting is lower than the rotation number of the stirring blower during the normal operation. .

A method of controlling a refrigerator according to a seventh aspect of the present invention is a refrigerator having a cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, and a stirring blower arranged in the freezer compartment. The higher the operating rate is, the lower the rotational speed of the agitation blower.

A method of controlling a refrigerator according to claim 8 is a refrigerator having a cooler blower for circulating and blowing the cool air from the cooler to at least the freezer compartment, and a stirring blower arranged in the freezer compartment. When the rotation speed of the blower for the fan rises, the rotation speed of the blower for the cooler is increased in synchronization with it.

According to a ninth aspect of the present invention, there is provided a method of controlling a refrigerator, in which a cooler blower for circulating and blowing cool air from a cooler to at least a freezer, a stirring blower arranged in the freezer, and a heat radiating blower for cooling a compressor. When the rotation speed of the agitation fan is increased, the refrigerator having the above is to increase the rotation speed of the heat dissipation blower in synchronization with it.

According to a tenth aspect of the present invention, there is provided a refrigerator control method, a freezer compartment, a refrigerating compartment, a freezing compartment door opening / closing detecting means for detecting an opening / closing state of a freezing compartment door, and a refrigerating compartment for detecting an opening / closing state of the refrigeration compartment. A refrigerator having a room door opening / closing detection means, a cooler blower that circulates the cool air from the cooler to at least the freezing room, and a stirring blower arranged in the freezing room, wherein the freezing room door opening / closing detection means When the open state of the freezer door is detected,
Even if the agitating blower is stopped and the refrigerating compartment door opening / closing detecting means detects the open state of the refrigerating compartment door, the agitating blower continues to operate.

A refrigerator control method according to an eleventh aspect of the present invention is provided with a cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, an ice making section provided in a part of the freezer compartment, and an ice making section. A refrigerator having an ice making device and a stirring blower arranged in a freezer compartment, and when the ice making device suspends the ice making operation, the stirring blower is stopped.

According to a twelfth aspect of the present invention, there is provided a refrigerator control method, wherein a cooler blower that circulates the cool air from the cooler to at least the freezer compartment, a stirring blower disposed in the freezer compartment, and a room temperature that is the ambient temperature of the refrigerator. When the room temperature detected by the room temperature detecting means is higher than a predetermined temperature, the agitator blower is operated in synchronization with the compressor, and the room temperature detected by the room temperature detecting means is measured. Is lower than the predetermined temperature, the stirring blower is operated for a predetermined time after the compressor is stopped.

A refrigerator control method according to a thirteenth aspect of the present invention is a refrigerator having a cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, and a stirring blower arranged in the freezer compartment. When the operating rate of the machine is higher than the prescribed operating rate, the agitating blower is operated in synchronization with the compressor, and when the operating rate of the compressor is lower than the prescribed operating rate, the agitating blower is stopped. After that, it is operated for a predetermined time.

According to a fourteenth aspect of the present invention, there is provided a refrigerator control method, wherein a cooler blower for circulating and blowing the cool air from the cooler to at least the freezer compartment, an ice making section provided in a part of the freezer compartment, and an ice making section. An ice making device including an ice making tray, a blower for stirring placed in a freezer, and a refrigerator having an ice making tray temperature detecting means for measuring the temperature of the ice making tray, which is the temperature of the ice making tray, during the ice making operation of the ice making apparatus. When the ice tray temperature detected by the ice tray temperature detecting means is higher than the predetermined temperature, the stirring fan is forcibly operated for a certain period of time.

According to a fifteenth aspect of the present invention, in the refrigerator control method, a cooler blower for circulating and blowing the cool air from the cooler to at least the freezer compartment, an ice making section provided at a part of the freezer compartment, and an ice making section are provided. An ice making device including an ice tray, a tank for storing water for ice making, a water supply pipe for supplying water from the tank to the ice tray, a water supply port heater provided near the water outlet of the water supply pipe, and a freezer room. A refrigerator having an agitator blower arranged, wherein the heat capacity of the water inlet heater during the operation of the agitator blower is larger than the heat capacity of the agitator blower during the ice making operation of the ice maker. is there.

[0022]

[0023]

[0024]

[0025]

[0026]

[0027]

[0028]

[0029]

[0030]

[0031]

[0032]

According to the control method of the refrigerator of claim 1, since the operating rate of the compressor increases as the room temperature increases and the amount of cold air sent in increases, the freezer compartment is reduced even if the rotation speed of the agitation fan is lowered. Internal cooling can be performed.

According to the second aspect of the control method of the refrigerator, the higher the temperature of the freezer compartment, the higher the number of revolutions of the agitator blower and the lower the freezer compartment temperature.

In the refrigerator control method according to the third aspect of the present invention, the higher the set temperature of the freezing room temperature, the higher the number of revolutions of the stirring blower and the lower the freezing room temperature.

According to the control method of the refrigerator of claim 4, during a predetermined time before defrosting, that is, during a so-called pre-cooling operation, the rotation speed of the agitation fan is raised above the rotation speed during the normal operation, and the refrigerator is frozen. Lower the room temperature. As a result, even if defrosting is started, the temperature of the freezer compartment is unlikely to rise.

According to the fifth aspect of the refrigerator control method, the agitating blower is operated during the defrosting operation to prevent the freezing room temperature from rising.

According to the sixth aspect of the control method of the refrigerator, during the defrosting operation, the rotation of the stirring blower is lowered in order to mitigate the rise in the freezing room temperature due to the warm air of the cooler heater.

According to the seventh aspect of the control method of the refrigerator, the higher the operating rate of the compressor is, the larger the amount of cold air is sent. Therefore, the rotation number of the stirring blower is reduced.

According to the eighth aspect of the refrigerator control method, when the number of revolutions of the agitator blower increases, the number of revolutions of the cooler blower is increased in synchronism with the number of revolutions of the agitator blower to increase the amount of cool air fed. Lower freezer temperature.

According to the ninth aspect of the control method of the refrigerator, when the rotation speed of the stirring blower increases, the rotation speed of the heat radiation blower is increased in synchronization with the rotation speed of the stirring blower to promote heat radiation of the compressor.

According to the refrigerator control method of claim 10,
When the freezer compartment door is open, stop the stirring blower to prevent cold air from leaking out, and when the other refrigerator compartment doors are open, open the stirring blower. Continue to work. This is because the cold air in the freezer does not leak outside even if the other doors are opened.

According to the refrigerator control method of claim 11,
When the ice making operation is stopped, it is not necessary to lower the temperature of the freezer compartment, so the operation of the agitation blower is stopped.

According to the refrigerator control method of claim 12,
When the room temperature is higher than the predetermined temperature, the stirring fan is operated in synchronization with the compressor, and when the room temperature is lower than the predetermined temperature, the stirring fan is operated for a predetermined time after the compressor is stopped. This is because the compressor stops immediately when the room temperature is low, so that the freezer temperature is prevented from decreasing as much as possible.

According to the refrigerator control method of the thirteenth aspect, when the operating rate of the compressor is lower than the predetermined operating rate, the stirring fan is operated for a predetermined time after the compressor is stopped. This is because when the operation rate of the compressor is low, the amount of cold air sent is small, and the freezer temperature rises easily. Run for hours.

According to the refrigerator control method of claim 14,
If the ice tray temperature is higher than the specified temperature during the ice making operation for more than the specified time, it is difficult to make the ice.Therefore, the agitator blower is forcibly operated for a certain period of time to lower the freezer temperature and make the ice. Make it easier.

According to the refrigerator control method of claim 15,
When the agitating blower is operating, the temperature near the outlet of the water supply pipe falls and water tends to freeze. Therefore, the heat capacity of the water inlet heater is made larger than when the agitating blower is stopped.

[0048]

[0049]

[0050]

[0051]

[0052]

[0053]

BEST MODE FOR CARRYING OUT THE INVENTION A refrigerator 10 according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective view of the refrigerator 10. The refrigerator 10 is provided with a refrigerating compartment 12, an ice making compartment 14, a freezing compartment 16 and a vegetable compartment 18 from above. Further, on the right side of the ice making chamber 14, there is provided a switching chamber 20 capable of adjusting the inside temperature.

FIG. 1 is a longitudinal sectional view of an essential part showing the ice making chamber 14 and the freezing chamber 16 of the refrigerator 10, which is taken along line II of FIG.
The cross section corresponding to the line is shown. As shown in FIG. 1, the ice making chamber 14 and the freezing chamber 16 form one space, the ice making chamber 14 is provided in the upper part of this space, and the freezing chamber 16 is provided in the lower part.

An ice storage box 28 serving as an ice making container is arranged in the ice making chamber 14, and an ice tray 30 is provided above the ice storage box 28. The ice storage box 28 is mounted on a drawer rail (not shown), and this rail is attached to the ice making chamber door 24, and the ice making chamber door 24 is pulled forward as shown in FIG. It has a structure to be pulled out.

In the freezer compartment 16, a freezer box 32, which is a container for the freezer compartment, is vertically arranged in two stages. The freezer box 32 is also mounted on a drawer rail (not shown) like the ice storage box 28. By pulling the freezer compartment door 26 forward, the structure is such that it is pulled out from the freezer compartment 16.

As shown in FIG. 1, a cooler 34 is arranged behind the freezer compartment 16, and above the cooler 34,
A cooler blower 36 for blowing the cool air from the cooler 34 to the freezer compartment 16 and the ice making compartment 14 is provided.

The front surface of the cooler 34 is covered with a cooler cover 38. This cooler cover 38 is a front cover 38a.
And a rear cover 38b in combination, and the inside thereof serves as a duct 39 for guiding the cool air from the blower 36 for the cooler to the freezer compartment 16 and the ice making compartment 14. The front surface of the front cover 38a corresponds to the back surface of the freezing compartment 16 and the ice making compartment 14.

As shown in FIGS. 4 and 5, the cooler cover 38 has a wide width on the back side of the freezer compartment 16, but in the portion of the ice making compartment 14, the width of the upper portion thereof is constricted. It is thinly formed. Then, a cooler blower 36 is provided at the position of the constricted portion, and the cooler 34 is arranged at a portion having a wide width.

The cooler blower 36 is disposed behind the cooler cover 38, as shown in FIG. Specifically, a bell mouth-shaped suction opening 40 is provided in the rear cover 38b of the cooler cover 38.
Is provided with a fan 36a. A motor 36b for driving the fan 36a is housed in a case body 36c, and is attached by screwing the case body 36c to a positioning boss portion 40a protruding rearward from an edge portion of the opening 40 of the rear cover 38b. Has been. In this way, the motor 36b is housed in the case body 36c, and the fan 36a, the motor 36b, and the case body 36c are integrated and attached to the cooler cover 38, whereby the front cover of the motor is integrated with the cooler cover. As compared with the conventional structure, the fan 36a can be easily replaced.

The case body 36c has a self hinge 42.
It is configured as an integrated product that can be opened and closed via. Further, the peripheral edge portion 44 on the front surface of the case body 36c, which serves as a passage for blowing cool air from the cooler 34 into the cooler cover 38,
It is chamfered, that is, formed to be inclined obliquely so as to easily guide cold air.

A cooler cover 38 is provided by the fan 36a.
The front cover 38a is provided with the fan 3 so that the cool air blown into the duct 39 therein is well distributed over the entire duct 39.
6a, it is formed in a shape projecting rearward in a conical shape at a position facing the front surface of 6a. That is, the conical portion 44 is formed in the front cover 38a so that the clearance between the fan 36a and the front cover 38a becomes gradually narrower toward the rotation shaft 36d of the fan 36a.

The conical portion 44 is formed by the fan 36a.
The top portion where the front end portion of the rotating shaft 36d is located is formed as a recessed portion 44a that is depressed forward. The recess 44a is formed to have a diameter substantially the same as the diameter of the boss portion of the fan 36a. With such a recess 44a, the clearance between the fan 36a and the front cover 38a can be narrowed and the air blowing efficiency can be improved without considering the protruding size of the rotary shaft 36d.

As shown in FIGS. 4 and 5, the front cover 38a of the cooler cover 38 has a plurality of cold air outlets 46, 4 therein.
8a, 48b, 48c are provided.

That is, the first blow-out port 46 for blowing the cool air from the cooler blower 36 to the ice making chamber 14 side is the front cover 3
It is provided on the upper part of 8a. In addition, the cold air is stored in the freezer 16
Second, third and fourth outlets 48a for blowing out to the side,
A plurality of 48b and 48c are provided on the side portion of the constricted portion of the front cover 38a, slightly below the front cover 38a, and on the lower end portion of the front cover 38a.

Further, as shown in FIGS. 5 and 7, an opening 50 for guiding cold air to the refrigerating chamber 12 and the switching chamber 20 is formed at the upper end of the rear cover 38b of the cooler cover 38.

Here, the structure of the ice making machine arranged in the ice making chamber 14 will be described.

As shown in FIGS. 1 and 3, on the left side of the bottom of the refrigerating compartment 12, a water tank 52 for supplying water to the ice tray 30.
Are arranged.

On the ceiling of the ice making chamber 14, there is provided a plate supporting device 53 which constitutes an ice making machine, and a slender rectangular ice making plate 30 extending rearward is rotatably arranged on the rear surface thereof. Ice tray 30 from the water tank 52 through the water supply pipe 54
Is supplied with a predetermined amount of water. An ice detection lever 55 is rotatably provided on the lower portion of the rear surface of the plate support device 53.
It is provided so that it can enter and leave. An ice storage box 28 for storing ice below the ice tray 30 and the ice detection lever 55.
Are arranged.

The ice frozen in the ice tray 30 is used as the tray support device 5.
3, the ice tray 30 is rotated so as to be twisted, and the ice therein is dropped into the ice storage box 28. Then, if there is ice inside the ice storage box 28, the ice detection lever 55 is pushed up by this ice and it can be detected that there is ice. On the other hand, when there is no ice in the ice storage box 28, the ice detection lever 55 moves the ice storage box 28.
It is possible to detect the absence of ice because it hangs down to the bottom of the.

Next, the structure for stirring the cold air in the ice making chamber 14 and the freezing chamber 16 will be described.

As shown in FIG. 1, the ice storage box 2 of the ice making chamber 14
8 in the dead space 56 between the cooler cover 38,
A fan (hereinafter referred to as a stirring fan) 60a of a stirring blower 60 that stirs the cold air in the ice making chamber 14 and the freezing chamber 16 is arranged. This agitation fan 60a is used for the blower 36 for the cooler.
It is located in a position where it is not directly affected by the cold air from. That is, the agitating fan 60a is used for the cooler cover 3
8 is not arranged in front of the cool air outlets 46 and 48,
The cool air in the chambers 14 and 16 is arranged at positions displaced from the front surfaces of the cool air outlets 46 and 48 so that the cool air can be independently stirred. This is because the stirring fan 60a is usually
Since it is always rotated, when the cooler 34 is defrosted, relatively warm air is discharged from the cool air outlets 46, 48.
This is because it is prevented from being sucked into the inside of 4,16.

As shown in FIG. 7, the motor 60b for rotating the stirring fan 60a is arranged in a recess 62 formed in the front cover 38a of the cooler cover 38, and its front surface is closed by the motor cover 64. Has been. This motor 60
The inverter b is controlled by an inverter so that the rotation speed of the stirring fan 60a can be changed.

In the dead space 56, the cold air blown by the stirring fan 60a is filled with the ice making chamber 14 and the freezing chamber 16.
A dedicated duct 66 for blowing out toward a predetermined position is provided. As shown in FIG. 6, the exclusive duct 66 is attached to the front surface of the front cover 38a of the cooler cover 38 so as to cover the position where the stirring fan 60a is disposed.

The exclusive duct 66 is attached to the bell mouth portion 70 having a bell mouth-shaped opening 68 and a front portion of the bell mouth portion 70 to form a cool air passage between the bell mouth portion 70 and the bell mouth portion 70. It is a split type duct including the duct portion 72 (see FIG. 6).

As shown in FIG. 7, a stirring fan 60a is arranged in the opening 68 of the bell mouth portion 70. A space is provided between the back surface of the stirring fan 60a and the front surface of the cooler cover 38, so that the cool air of the ice making chamber 14 and the freezing chamber 16 is sucked into the dedicated duct 66.

The dedicated duct 66 has ice making openings 74 and 75 for blowing cold air to the ice tray 30 of the ice making chamber 14 on the front side of the upper end portion thereof, and at the lower end portion thereof, forward and downward. It spreads like a skirt while inclining to the freezer compartment 16
The upper freezing box 32 has a freezing opening 76 for blowing cold air.

The ice making openings 74 and 75 are, as shown in FIGS. 8 to 10, a first opening 74 for blowing cold air to the ice making tray 30 from the rear side thereof, and an ice making tray duct arranged above the ice making tray 30. And a second opening 75 connected to 78.

Specifically, an ice making cover 80 is provided above the ice making tray 30 integrally with the dish supporting device 53, and the portion of the ice making cover 80 corresponding to the upper side of the ice making tray 30 is the first portion.
An opening 81 is formed to supply cold air from the opening 74 to the upper surface of the ice tray 30.

Further, one side portion of the ice making cover 80 corresponding to an obliquely upper portion of the ice making tray 30 is formed to have an arc-shaped cross section, and a cold air guide port 82 is opened to this arc-shaped side portion. . A cover body 83 having a substantially L-shaped cross section is provided so as to cover the cold air guide port 82, and the inside thereof is configured as an ice tray duct 78. That is,
The ice tray duct 78 is formed by extending the upper side portion of the ice tray 30 in the front-rear direction, and a cold air guide port 82 extending in the longitudinal direction of the duct 78 is formed on the side surface of the ice tray 30 side.

Then, the first opening 74 has the ice making cover 8
0 is arranged behind the opening 81 to blow cold air onto the upper surface of the ice tray 30 from the rear, and the second opening 75 is connected to the rear end of the ice tray duct 78.
Cold air is blown from the side onto the upper surface of the ice tray 30.

On the other hand, the freezing opening 76 of the dedicated duct 66.
Is a dead space 84 which is a partition between the ice making chamber 14 and the freezing chamber 16, that is, the freezing chamber door 26 and the ice making chamber door 24.
It is provided in the space behind the partition body 85 for adsorbing the gasket of FIG.

The opening area of the freezing opening 76 farther away from the stirring fan 60a is set to be larger than the total opening area of the ice making openings 74 and 75 close to the stirring fan 60a. Cold air is distributed well to 76 as well.

Next, the function and effect of this refrigerator will be described.

The agitator blower 60 is the cooler blower 36.
The stirring fan 60a is always rotated at a constant rotation speed (for example, 1500 rpm). By rotating the stirring fan 60a in this manner, as shown in FIG.
The cold air in 6 is agitated. Therefore, the ice making / freezing time can be shortened by the agitated cold air. When performing quick freezing or quick ice making, a stirring fan 60a
The cooling effect is enhanced by increasing the number of revolutions of (1) (eg, 3000 rpm) to accelerate the circulation of cold air, and the ice making / freezing time can be further shortened.

In this embodiment, since the special duct 66 is provided, the cooling air in the ice making chamber 14 and the freezing chamber 16 is opened by the rotation of the stirring fan 60a as shown in FIG. It is sucked into the duct 66 from the portion 68. The sucked cool air is vertically distributed in the dedicated duct 66. One of the distributed cool air is sent into the freezer box 32 in the upper stage of the freezer compartment 16 from the freezing opening 76. The other of the distributed cool air is the ice making opening 7
The air is blown out from 4, 75 and is blown to the upper surface of the ice tray 30 from the rear and the sides thereof.

By providing the exclusive duct 66 in this way, the cold air from the stirring fan 60a can be blown out specifically to the ice tray 30 and the freezer box 32, so that the ice making / freezing time can be greatly increased. Can be shortened.

Further, the stirring fan 60a and the dedicated duct 6
6 is a dead space 56, which has not been used before,
Since it is arranged at 84, the space can be effectively used and the capacity in the refrigerator is not reduced.

Also, two parts of the ice making chamber 14 and the freezing chamber 16 can be cooled by one agitating blower 60. Moreover, since the entire space of the ice making chamber 14 and the freezing chamber 16 is agitated by the agitating blower 60, the growth of frost on the front side of the cooler cover 38 can be prevented.

A block diagram of the electric system of the refrigerator 10 having the above configuration will be described with reference to FIG.

The control device 500 controls the refrigerator 10, which is composed of a microcomputer and is provided on the upper rear portion of the cabinet of the refrigerator 10. As shown in FIG. 11, the following devices are connected to the control device 500.

The relationship of the blowers will be described.

Cooler blower 36, heat radiation blower 50
4. A stirring blower 60 is connected. The motors 36b and 60b of these blowers are DC motors, and the number of rotations can be easily controlled. The heat-dissipating blower 504 is arranged in a machine room provided at the bottom of the cabinet to cool the compressor 508.

The relationship of the temperature sensors will be described.

A refrigerating compartment temperature sensor 510 for detecting the temperature of the refrigerating compartment 12, a freezing compartment temperature sensor 512 for detecting the temperature of the freezing compartment 16, a switching compartment temperature sensor 514 for detecting the temperature of the switching compartment 20, and a refrigerator 10 are installed. The room temperature sensor 516 that detects the room temperature of the room is connected.

The relationship of door switches will be described.

A cold room door switch 518 for detecting the open / closed state of the cold room door 22, a switch room door switch 520 for detecting the open / closed state of the switching room door, an ice making room door switch 522 for detecting the open / closed state of the ice making room door 24, A freezer compartment door switch 524 for detecting the open / closed state of the freezer compartment door 26 and a vegetable compartment door switch 526 for detecting the open / closed state of the vegetable compartment door are connected.

The relationship of the ice making device 528 will be described.

The control device 500 includes a water supply pump 530 for supplying water to the ice tray 30, a dish motor 532 provided in the dish indicator device 53 for rotating the ice tray 30, and an ice making device for detecting the temperature of the ice tray 30. Detects whether the plate temperature sensor 534, the water supply port heater 536 provided near the water supply port that is the outlet of the water supply pipe 54 for supplying water from the water supply pump 530 to the ice tray 30, and the ice storage box 28 are full of ice An ice detecting switch 538, which is a switch of the ice detecting lever 50, is connected.

The relationship between the set temperature switches will be described.

The control device 500 includes a refrigerating room temperature setting switch 546, a freezing room temperature setting switch 548, a switching room temperature setting switch 550, and a vegetable room temperature setting switch 552.
Are connected.

In addition to this, the following is connected to the control device 500.

A motor of the compressor 508, a timer 540 for accumulating a predetermined time, a quick freezing switch 542 for performing a quick freezing operation described later, and a quick ice making for performing a quick ice making operation also described later. Switch 5
44 is connected. In addition, the control device 500 includes a defrost heater 554 for heating the cooler 34 and performing defrosting.
Are connected.

Next, the control state of the operation of the refrigerator 10 in the control device 500 will be described. There are five types of control states for this operation: normal operation, normal ice making operation, defrosting operation, quick freezing operation, and quick ice making operation. In addition to these, there are a total of six kinds of abnormal control when an abnormality occurs. .
Hereinafter, the control state of each operation will be described in order.

1. Normal operation The normal operation is an operation state when the user normally uses the refrigerator 10, and the control state of the stirring blower 60 will be described below.

(1) Control based on the indoor temperature sensor 516 The number of revolutions of the stirring blower 60 is controlled by the indoor temperature detected by the indoor temperature sensor 516. Specifically, FIG.
As shown in 2, when the room temperature is 0 ° C or lower, 2,5
The temperature is rotated at 00 rpm, the room temperature and the number of rotations are inversely proportional between 0 ° C and 20 ° C, and when the room temperature is 20 ° C or higher, the rotation speed is fixed at 1,500 rpm.

The reason for performing this control is that if the room temperature is high, the operating rate of the compressor 508 is increased and the amount of cool air sent is increased. Therefore, even if the rotation speed of the agitation fan 60 is not increased, A temperature of 16 can be maintained.

(2) Second control by the indoor temperature sensor 516 The number of revolutions of the stirring blower 60 is changed according to the indoor temperature detected by the indoor temperature sensor 516 during the normal operation.

When the room temperature is 20 ° C. or higher, the stirring blower 60 is operated in synchronization with the compressor 508. As a result, the normal refrigerating capacity can be maintained even if the room temperature is high.

When the room temperature is lower than 20 ° C., the stirring blower 60 is set to 3 even after the compressor 508 is stopped.
Operate continuously for 0 minutes and thereafter. The reason for this control is that when the indoor temperature is low, the operating time of the compressor 508 is short, so that the compressor 508 is the same as when the indoor temperature is high.
This is because if the operation is performed in synchronization with, the refrigerating capacity will decrease.

(3) Control by freezing room temperature The rotation speed of the stirring fan 60 is also controlled by the freezing room temperature as shown in FIG.

That is, based on the room temperature detected by the freezing room temperature sensor 512, the rotation speed of the stirring blower 60 is proportionally increased. Specifically, the freezer temperature is -28.
If it is below ℃, rotate it at 1,500 rpm,
Rotation speed is increased proportionally from ℃ to -20 ℃,
When the temperature is above ℃, rotate at 3,000 rpm.

The reason why the number of revolutions is increased as the freezing compartment temperature rises is that it is necessary to stir the cold air to lower the temperature of the freezing compartment 16 as the freezing compartment temperature rises.

As a modification of this control method, instead of the freezing room temperature detected by the freezing room temperature sensor 512,
The rotation speed of the agitation fan 60 may be controlled by the temperature set by the freezer compartment temperature setting switch 548.

(4) First control by operating rate of compressor 508 The operating rate of the compressor 508 also controls the rotation rate of the agitation fan 60. Here, the operating rate of the compressor 508 refers to the operating rate of the compressor 506 for a certain period of time. For example, when the operating time is 30 minutes for one hour, the operating rate is 50%. .

As shown in FIG. 14, the number of revolutions of the stirring blower 60 is reduced in proportion to the operating rate of the compressor 508. Specifically, when the operation rate is 20% or less, the rotation number of the agitation fan 506 is maintained at 2,500 rpm,
From 20% to 60%, the rotation speed is reduced in proportion to the operating rate. And in case of 60% or more, 1,500 rpm
Rotate with.

The compressor 508 performs such control.
This is because the amount of cold air sent in increases as the operating rate increases, and the freezer temperature can be lowered without rotating the stirring blower 60. And the compressor 508
It is possible to cool the freezing compartment 16 regardless of the operating rate of, and to maintain the refrigerating capacity constant.

(5) Second control by the operating rate of the compressor 508 When the operating rate of the compressor 508 is higher than the predetermined operating rate (50%), the stirring blower 60 is synchronized with the compressor 508. To operate. The reason for this control is that the compressor 508 has a high operation rate, and thus the normal refrigerating capacity can be maintained only by operating in synchronization.

When the operating rate of the compressor 508 is lower than the predetermined operating rate, the stirring blower 60 is replaced with the compressor 508.
After the stop, the device is operated for a predetermined time (30 minutes). The reason for this control is that when the operating rate of the compressor 508 is low, the supplied cold air is reduced and the refrigerating capacity is reduced.

(6) Control of Cooler Blower 36 When the rotation speed of the stirring blower 60 increases, the rotation speed of the cooler blower 36 is increased in synchronization with it.

Thus, when it is desired to rotate the stirring blower 60 to lower the freezer temperature, the cooler blower 3
Since the number of rotations of 6 also rises and the amount of cold air sent in increases, the temperature of the freezer compartment can be lowered more quickly.

(7) Control of heat dissipation blower The heat dissipation blower 504 is also controlled in synchronization with the stirring blower 60.

That is, when the rotation speed of the stirring blower 60 increases, control is performed to increase the rotation speed of the heat radiation blower 504 in synchronization with it. The reason for this control is that the freezer temperature needs to be lowered when the rotation speed of the agitation fan 60 increases, and in this case, the operating rate of the compressor 508 is increasing. Therefore, the operating rate becomes high and the temperature of the compressor 508 becomes high.
The temperature of the compressor 508 is lowered by increasing the rotational speed of 04.

(8) Control by Door Switch When the door of the freezing compartment 16 or the door of the ice making compartment 14 is detected by the freezing compartment door switch 524 or the ice making compartment door switch 522, the operation of the stirring blower 60 is forced. Stop.

The reason for controlling in this way is that when the door of the freezer compartment 16 is opened or when the door of the ice making compartment 14 is opened, noise due to the rotating sound of the agitator blower 60 is prevented, and the agitator is used. This is to prevent the cool air from leaking to the outside due to the blower 60 rotating.

On the other hand, refrigerating room 12, switching room 20, vegetable room 1
Even if the open state of the door of No. 8 is detected by the refrigerator compartment door switch 518, the switching compartment door switch 512, and the vegetable compartment door switch 526, the operation of the stirring blower 60 is not stopped but continues as it is. Thereby, the freezing capacity of the freezer compartment 16 can be maintained.

(9) Relationships between controls When controlling from (1) to (7),
Select one of the controls in (7). And
Only the control by the door switch in (8) is given priority over each control.

2. Defrosting operation Even during the so-called precooling operation before the defrosting operation and the defrosting operation are started, the rotation speed of the stirring blower 60 is controlled.

(1) Pre-cool operation During the pre-cool operation, it is necessary to lower the freezing temperature of the freezer compartment 16 as much as possible so that the freezer compartment temperature does not rise even if defrosting is performed. Therefore, during the pre-cool operation, the agitator blower 6 is rotated from the rotation speed during the normal operation.
Increase the rotation speed of 0.

For example, during normal operation, 1,900
What was rotating at rpm is increased to 2,800 rpm.

(2) Defrosting Operation Next, when the precooling operation is completed and the defrosting heater 554 heats the cooler 34 to perform the defrosting operation, the rotation speed of the agitation fan 60 is set to the normal operation. Lower than the rotation speed of.

The reason for controlling in this way is that the defrosting operation is performed at a low speed so as to mitigate the temperature rise of the freezing compartment 16 due to the warming of the defrosting heater 554. For example, when the normal operation is 1,900 rpm, the defrosting is 1,500 rpm.

3. Normal ice making operation (1) Ice making operation First, the ice making operation of the ice making device 528 will be described.

The water supply pump 530 supplies the ice making water from the tank to the ice tray 30. In this case, the water supply pipe 54
The water inlet is heated by the water inlet heater 536 to prevent icing.

The inside of the ice making chamber 14 is provided with the blower 3 for the cooler.
Cooled by the cool air blown from 6 and the cool air stirred by the stirring blower 60, the water in the ice tray 30 begins to freeze. In this case, the ice tray temperature sensor 534 measures the temperature.

90 minutes after the start of ice making, assuming that the ice making is completed, the dish motor 532 is rotated to rotate the ice making tray 30 to release the ice. 30 ice cubes
It is stored in the ice storage box 28 below.

The above operation (this one operation will be referred to as
Repeated several sets of "1 set"), ice box 28
I will collect ice on it.

Whether or not the ice storage box 28 is full is detected by the ice detection lever 50, and when the ice detection switch 538 is in the ON state, it is considered to be full and the ice making operation is completed.

(2) Control at the time of ice making stop When the ice making is stopped during the ice making operation as described above, it is not necessary to lower the temperature of the ice making chamber 14, so that the operation of the stirring blower 60 is stopped. For example, when the tank runs out of water, or when fullness is detected as described above, the operation of the agitation fan 506 is stopped. Whether or not the water runs out is determined by the ice tray temperature sensor 530. That is, if water is supplied, the ice tray 30
It is judged that water was supplied because the temperature of
If the temperature of the ice tray 30 does not rise, it is determined that there is no water.

(3) Control by the indoor temperature sensor 516 The number of rotations of the stirring blower 60 is changed according to the indoor temperature detected by the indoor temperature sensor 516 during the ice making operation.

When the room temperature is 20 ° C. or higher, the stirring blower 60 is operated in synchronization with the compressor 508. As a result, the normal ice making capacity can be maintained even if the room temperature is high.

When the room temperature is lower than 20 ° C., the stirring blower 60 is set to 3 even after the compressor 508 is stopped.
Operate continuously for 0 minutes and thereafter. The reason for this control is that when the indoor temperature is low, the operating time of the compressor 508 is short, so that the compressor 508 is the same as when the indoor temperature is high.
This is because the ability to make ice drops when operated in synchronism with.

(4) Control by operating rate of compressor 508 When the operating rate of the compressor 508 is higher than a predetermined operating rate (50%), the agitating blower 60 is operated in synchronization with the compressor 508. The reason for this control is that the compressor 508 has a high operation rate, so that the normal ice making capacity can be maintained only by operating the compressor 508 in synchronization.

When the operating rate of the compressor 508 is lower than the predetermined operating rate, the agitator blower 60 is replaced by the compressor 508.
After the stop, the device is operated for a predetermined time (30 minutes). The reason for this control is that when the operating rate of the compressor 508 is low, the supplied cold air is reduced and the ice making capacity is reduced.

(5) Control by the ice tray temperature sensor 534, the ice tray temperature sensor 534 is operated for a predetermined time (10 minutes) or more,
When a temperature above a predetermined temperature (0 ° C) is detected, the ice making chamber 14
Is determined to be insufficiently cooled, and the stirring blower 60 is forcibly operated for a fixed time (1 hour).

(6) Control of Water Supply Port Heater 536 When operating the stirring blower 60, the input of the water supply port heater 536, that is, the heat capacity is made larger than when the stirring blower 60 is stopped. As a result, the cooling capacity of the ice making chamber 14 may be increased by the agitating blower 60 and freezing of the water supply port may be promoted.
The heat capacity of 36 is raised to prevent its freezing.

Further, the heat capacity of the water inlet heater 536 may be changed depending on the rotation speed of the stirring blower 60. Specifically, the heat capacity of the water inlet heater 536 is increased in proportion to the rotation speed of the stirring blower 60.

(7) Control when the ice making device 528 is removed When the ice making tray 30 or the like is removed from the ice making chamber 14, the control device 500 detects it and controls the above (2) to (6). Then, the stirring blower 60 is controlled only by the control from the freezer compartment 16.

(8) Relationships between controls When controlling from (1) to (7),
Based on the control in (2), select one of the controls in (3) to (7).

4. Quick freezing operation The quick freezing operation means that the user turns on the quick freezing switch 542 so that the freezer compartment 1 is more than the normal operation.
The refrigerating capacity of No. 6 is improved. The control method in this case will be described below.

(1) Basic control method The quick freezing operation is performed for 150 minutes after the quick freezing switch 542 is turned on. The operating state of each device during this rapid operation will be described.

The compressor 508 has a freezer compartment temperature sensor 512.
The continuous operation is performed until the freezer compartment temperature detected by -30 ° C reaches -30 ° C. After that, the operation is started when the freezing room temperature reaches −28 ° C., and stopped when it reaches −30 ° C.

The cooler blower 36 is continuously operated at 2,800 rpm, which is higher in rotation speed than in normal operation.

As a result, the temperature of the freezer compartment 16 is -30.
C. can be reached rapidly and this temperature can be maintained thereafter.

Then, as described above, when 150 minutes have passed, the quick freezing operation is stopped.

(2) Control by the indoor temperature sensor 516 During the quick freezing operation, the higher the indoor temperature detected by the indoor temperature detection sensor 516, the higher the stirring blower 60.
Proportionally increase the number of revolutions.

Thus, the refrigerating capacity in the quick freezing operation can be maintained even if the room temperature is high.

Also, unlike the basic control method in (1), when the compressor 508 is operated in synchronization, if the room temperature detected by the room temperature sensor 516 is lower than 20 ° C., the stirring blower 60 Operating time compressor 50
It may be longer than the operation time of 8. That is, even during the rapid freezing operation, the room temperature may be low and the amount of cold air sent by the operation of the compressor 508 may be small, so that the operating time of the stirring blower 60 may be shorter than the operating time of the compressor 508. The length is increased to maintain the refrigerating capacity in the freezer compartment 16.

(3) Control by Freezing Room Temperature As the freezing room temperature detected by the freezing room temperature sensor 512 is higher, the rotation speed of the agitation fan 60 is proportionally increased to maintain the freezing capacity of the freezing room 16. be able to.

FIGS. 15 to 17 show a flow chart for controlling the number of revolutions of the stirring blower 60 according to the room temperature during the quick freezing operation, and a timing chart thereof. Hereinafter, description will be given based on FIG.

In step 1, normal operation is performed, and the process proceeds to step 2. In step 2, if the quick freezing switch 542 is turned on, the process proceeds to step 3, where O
If it is in the FF state, the process returns to step 1.

In step 3, if the room temperature is higher than 20 ° C., the process proceeds to step 4, and if it is low, the process proceeds to step 6.

In step 4, the room temperature is 20 ° C.
Since it is higher, the operating rate of the compressor 508 is lower,
Since the amount of cold air sent is small, the rotation speed of the agitation fan 60 is increased to 2,800 rpm and the process proceeds to step 5.

In step 5, it is measured whether or not T1 (150 minutes), which is the time of the quick freezing operation, has been measured. If 150 minutes have passed, the quick freezing operation is terminated, and if not, step 4 Return to.

On the other hand, in step 6, since the indoor temperature is higher than 20 ° C., the operation rate of the compressor 508 is high, so that the amount of cool air sent is large, and the rotation speed of the agitation fan 60 is set to 1,900 rpm. Rotate and proceed to step 7.

At step 7, it is judged once again whether the room temperature is higher than 20 ° C. If it is higher, the routine proceeds to step 4, where the rotation speed of the agitator blower 60 is 2,800 rp.
Raise to m. If the room temperature is higher than 20 ° C., in step 8, the time of the quick freezing operation is T1.
It is measured whether or not (150 minutes) has been reached, and if not reached, the process returns to step 6. If it has reached, the quick freezing operation is terminated.

FIG. 17 is a timing chart when the indoor temperature in steps 4 to 5 is low, and FIG. 16 is a timing chart when the indoor temperature in steps 6 to 8 is high.

(4) Control by the set temperature of the switching chamber 20 The higher the set temperature of the switching chamber 20 during the quick freezing operation, the more the rotation speed of the stirring blower 60 is changed so that the temperature of the switching chamber 20 is not affected. It may be raised to maintain the refrigeration capacity.

(5) Relationship between controls When performing the controls of (1) to (7), one of the controls of (2) to (4) is based on the control of (1). Select and do.

5. Rapid ice making operation The rapid ice making operation is an operation for completing the ice making operation earlier than the normal ice making operation, and the control method thereof will be described below.

(1) Basic Control Method The operation state of the ice making device 528 is the same as the basic control method in the normal ice making operation, but one set time is 60 minutes shorter than 90 minutes in the normal ice making operation. It is a point. That is, this rapid ice making operation is characterized in that the completion of one set of ice making is shortened from 90 minutes to 60 minutes. FIG. 18 shows a timing chart of this rapid ice making operation.

Each device during the rapid ice making operation is controlled as follows.

The agitator blower 60 has an ice detecting switch 538.
Is detected to be full, the motor is continuously rotated at 2,800 rpm, which is higher than the rotation speed during normal operation. As a result, the ice making capacity inside the ice making chamber 14 is maximized.

The compressor 508 is a rapid ice making switch 544.
It is operated continuously for 50 minutes after is turned on.

The dish motor 532 is rotated for 60 minutes as described above.

The heat capacity of the water inlet heater 536 is always maximized.

By operating each device as described above, the ice making time can be shortened.

(2) Control when the rapid ice making switch 544 is in the ON state during normal ice making operation When the rapid ice making switch 544 is in the ON state during the ice making operation, the subsequent control method is performed depending on the timing. Changes, so I will explain it here.

One set time during the normal ice making operation is 90 minutes as described above. Therefore, 60 minutes after the normal ice making operation is started, the rapid ice making switch 5
When 44 is turned on, the rapid ice making operation is started. On the other hand, when the rapid ice making switch 544 is turned on after 60 minutes, the normal ice making operation is performed until the ice making of the ice making tray 30 is completed, and the rapid ice making operation is performed for the set thereafter. .

The reason for this control is 60 even in the normal ice making operation.
This is because if the time has passed, the ice making is almost completed.

(3) Modified Example As the timing for ending the rapid ice making operation, instead of when the fullness is detected, the rapid ice making operation may be ended when a predetermined set (for example, 5 sets) is completed.

6. Control when abnormality occurs (1) When abnormality occurs in each device of the ice making device 528,
The stirring blower 60 is controlled to be forcibly stopped.

(2) When an abnormality occurs in the stirring blower 60, the stirring blower 60 is stopped and the cooling blower 3
Increase the rotation speed of 6. As a result, the cooling capacity of the freezing compartment 16 and the ice making compartment 14 can be maintained even if the stirring blower 60 is stopped.

In this case, in order to indicate that the stirring blower 60 has an abnormality, a lamp on the front surface of the refrigerator 10 may be turned on to warn of the abnormality.

[0186]

As described above, according to the refrigerator control method of the present invention, by finely controlling the stirring blower, the freezing time and the ice making time can be performed earlier than before, and the cooling balance of the refrigerator is affected. Also does not give.

Even if the number of rotations of the stirring blower is increased, the pressure in the freezer compartment 16 is lower than that of the cooler blower.
Since it rotates inside, noise does not increase.

[0188]

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an ice making chamber and a freezing chamber of a refrigerator according to an embodiment of the present invention.

FIG. 2 is a perspective view of the refrigerator.

FIG. 3 is an enlarged perspective view of a middle part of the refrigerator.

FIG. 4 is a cutaway front view of an ice making chamber and a freezing chamber of the refrigerator.

FIG. 5 is a perspective view of a cooler cover of the refrigerator.

FIG. 6 is an exploded perspective view of a cooler cover and a dedicated duct attached to the front thereof.

FIG. 7 is an enlarged vertical sectional view of an essential part of an ice making chamber and a freezing chamber of the refrigerator.

FIG. 8 is an exploded perspective view showing a positional relationship between the dedicated duct and the ice tray.

FIG. 9 is a plan view of a dedicated duct and an ice tray.

10 is a cross-sectional view taken along line XX of FIG.

FIG. 11 is a block diagram of a refrigerator.

FIG. 12 is a graph showing the rotation speed of a stirring blower according to the room temperature.

FIG. 13 is a graph showing the number of rotations of the agitation fan according to the temperature of the freezing compartment.

FIG. 14 is a graph showing the number of rotations of the stirring blower according to the operating rate of the compressor.

FIG. 15 is a graph showing a control state of the stirring blower according to the room temperature in the quick freezing operation.

16 is a timing chart when the indoor temperature is high in the flowchart of FIG.

FIG. 17 is a timing chart when the room temperature is low.

FIG. 18 is a timing chart of each device in the rapid ice making operation.

[Explanation of symbols]

10 refrigerator 14 Ice making room 16 Freezer 28 Ice Storage Box 30 ice tray 32 Freezer Box 34 Cooler 36 Blower for cooler 38 Cooler cover 56,84 dead space 60 Stirrer Blower 60a stirring fan 66 Dedicated duct 68 Bell mouth-shaped opening of exclusive duct 74 Ice making opening (first opening) 75 Ice making opening (2nd opening) 76 Freezing opening 78 Ice tray duct 90 damper 500 control device 504 Heat dissipation fan 508 compressor 510 Refrigerator temperature sensor 512 Freezer temperature sensor 514 Switching chamber temperature sensor 516 Indoor temperature sensor 518 Refrigerator door switch 520 Switching room door switch 522 Ice-making chamber door switch 524 Freezer compartment door switch 526 Vegetable room door switch 528 ice making device 530 water pump 532 plate motor 534 Ice tray temperature sensor 536 Water heater 538 ice detection switch 540 timer 542 quick freezing switch 544 Rapid Ice Making Switch 546 Refrigerator temperature setting switch 548 Freezer temperature setting switch 550 Switching room temperature setting switch 552 Vegetable room temperature setting switch 554 Cooling heater

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiro Yoshioka 1-6 Ota Toshiba-cho, Ibaraki-shi, Osaka Inside the Osaka factory of Toshiba Corporation (72) Kazumito Taniguchi 1-6 Ota-shiba-cho, Ibaraki-shi, Osaka No. 6 Toshiba Corporation Osaka Factory (72) Inventor Toshiyuki Shibuya No. 6 Ota Toshiba Town, Ibaraki City, Osaka Prefecture No. 6 Toshiba Corporation Osaka Factory (72) Inventor Hisa Kuga No. 6 Ota Toshiba Town, Ibaraki City, Osaka Prefecture Stock company Toshiba Osaka Factory (56) Reference JP-A-4-98075 (JP, A) JP-A-7-270027 (JP, A) Actual development Sho-59-101180 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F25D 11/00 101 F25D 17/06 313

Claims (15)

(57) [Claims] 1. A cooler blower that circulates the cool air from the cooler to at least the freezer compartment, an agitator blower arranged in the freezer compartment, and a room temperature detecting means for measuring a room temperature that is an ambient temperature of the refrigerator. A method of controlling a refrigerator, wherein the number of rotations of the stirring blower is decreased as the room temperature detected by the room temperature detecting means is higher. 2. A cooler blower for circulating and sending cool air from the cooler to at least the freezer compartment, a stirring blower arranged in the freezer compartment, and a freezer compartment temperature detection means for measuring the freezer compartment temperature of the freezer compartment. A method for controlling a refrigerator, wherein the number of rotations of the stirring blower is increased as the freezer temperature detected by the freezer temperature detecting means is higher. 3. A cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, a stirring blower arranged in the freezer compartment, and a freezer compartment temperature setting means for setting the freezer compartment temperature of the freezer compartment. A method of controlling a refrigerator, wherein the number of revolutions of the stirring blower is increased as the freezer temperature set by the freezer temperature setting means is higher. 4. A refrigerator having a cooler blower for circulating the cool air from the cooler to at least the freezer compartment, a stirring blower arranged in the freezer compartment, and a cooler heater for heating the cooler, A method for controlling a refrigerator, characterized in that the number of revolutions of the agitation blower during a predetermined time period before the defrosting is performed by heating the cooler by the cooler heater is made higher than the number of revolutions of the agitation blower during normal operation. 5. A refrigerator having a cooler blower that circulates the cool air from the cooler to at least the freezer compartment, an agitator blower that is arranged in the freezer compartment, and a cooler heater that heats the cooler, A method for controlling a refrigerator, comprising operating a stirring blower during a defrosting operation in which a cooler heater heats a cooler to perform defrosting. 6. A refrigerator having a cooler blower for circulating the cool air from the cooler to at least the freezer compartment, a stirring blower arranged in the freezer compartment, and a cooler heater for heating the cooler, A method for controlling a refrigerator, characterized in that the number of revolutions of the stirring blower during the defrosting operation in which the cooler heater heats the cooler to perform defrosting is made lower than the number of revolutions of the stirring blower during normal operation. 7. A refrigerator having a cooler blower for circulating and sending cool air from the cooler to at least the freezer compartment, and a stirring blower arranged in the freezer compartment, wherein the higher the operating rate of the compressor, the higher the stirring rate. A method for controlling a refrigerator, which is characterized by lowering the rotation speed of an air blower for a refrigerator. 8. A refrigerator having a cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, and a stirring blower arranged in the freezer compartment, wherein the rotation speed of the stirrer blower is increased. A control method for a refrigerator characterized by increasing the rotation speed of a blower for a cooler in synchronism with time. 9. A refrigerator having a cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, a stirring blower arranged in the freezer compartment, and a heat radiation blower for cooling the compressor. A method for controlling a refrigerator characterized in that, when the rotation speed of the agitation fan rises, the rotation speed of the heat dissipation blower is increased in synchronization with it. 10. A freezer compartment, a refrigerating compartment, a freezing compartment door opening / closing detecting means for detecting an opening / closing state of a freezing compartment door, a refrigerating compartment door opening / closing detecting means for detecting an opening / closing state of a refrigerating compartment door, and a cooling A refrigerator having a cooler blower that circulates the cool air from the refrigerator to at least the freezer compartment, and a stirring blower that is arranged in the freezer compartment, wherein the freezer compartment door opening / closing detection means opens the open state of the freezer compartment. When the detection is detected, the stirring fan is stopped, and even if the refrigerating compartment door opening / closing detecting means detects the open state of the refrigerating room door, the stirring fan is continued to operate. 11. An air blower for a cooler, which circulates the cool air from the cooler to at least the freezer compartment, an ice making part provided in a part of the freezer compartment, an ice making device provided in the ice making part, and an ice making device provided in the freezer compartment. A method of controlling a refrigerator, wherein the stirring blower is stopped when the ice making device stops the ice making operation. 12. A cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, a stirring blower arranged in the freezer compartment, and a room temperature detecting means for measuring a room temperature which is an ambient temperature of the refrigerator. When the room temperature detected by the room temperature detecting means is higher than the predetermined temperature, the stirring blower is operated in synchronization with the compressor, and when the room temperature detected by the room temperature detecting means is lower than the predetermined temperature. A method for controlling a refrigerator, wherein the agitating blower is operated for a predetermined time after the compressor is stopped. 13. A refrigerator having a cooler blower for circulating and blowing cool air from the cooler to at least the freezer compartment, and a stirring blower arranged in the freezer compartment, wherein the operating rate of the compressor is a predetermined operating rate. When it is higher, the agitating blower is operated in synchronization with the compressor, and when the operating rate of the compressor is lower than the prescribed operating rate, the agitating blower is operated for a prescribed time after the compressor is stopped. And how to control the refrigerator. 14. An air blower for a cooler that circulates the cool air from the cooler to at least the freezer compartment, an ice making section provided in a part of the freezer compartment, and an ice making device including an ice tray provided in the ice making section, A refrigerator equipped with a stirring blower arranged in a freezer and an ice tray temperature detecting means for measuring the temperature of the ice tray, which is the temperature of the ice tray.The ice tray temperature detecting means detects the ice tray temperature during the ice making operation of the ice making device. A method for controlling a refrigerator, characterized in that, when the temperature of the ice tray is higher than a predetermined temperature, the stirring blower is forcibly operated for a certain period of time. 15. A blower for a cooler, which circulates the cool air from the cooler to at least the freezer compartment, an ice making unit provided in a part of the freezer compartment, and an ice making device including an ice tray provided in the ice making unit, A tank for storing water for ice making, a water supply pipe for supplying water from the tank to the ice tray, a water supply port heater provided near the water outlet of the water supply pipe, and an agitation fan arranged in the freezer compartment. A method of controlling a refrigerator, wherein the refrigerator has a heat capacity of the water inlet heater during operation of the stirring blower that is larger than a heat capacity when the stirring blower is stopped during the ice making operation of the ice making device.