CN111684219A - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
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- CN111684219A CN111684219A CN201980001939.0A CN201980001939A CN111684219A CN 111684219 A CN111684219 A CN 111684219A CN 201980001939 A CN201980001939 A CN 201980001939A CN 111684219 A CN111684219 A CN 111684219A
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- temperature
- refrigerator
- control
- door
- opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The refrigerator is provided with: a heat-insulating box body, wherein a plurality of storage chambers including a first storage chamber set as a soft freezing temperature zone are formed inside the heat-insulating box body; a door that opens and closes an opening formed in a front surface of the first storage chamber; a door opening/closing detection unit that detects opening/closing of the door; a temperature detection unit that detects a temperature of the first storage chamber; a temperature control unit that controls a temperature of the first storage chamber; and a controller that controls the temperature control unit based on a temperature detected by the temperature detector, and when opening and closing of the door is detected in normal temperature control for maintaining a temperature in the refrigerator in the first storage chamber at a preset normal set temperature, the controller performs special temperature control for transitioning the temperature in the refrigerator in the first storage chamber to a first set temperature higher than the normal set temperature for a first time period, and thereafter transitioning the temperature to a second set temperature lower than the normal set temperature for a second time period.
Description
Technical Field
The present invention relates to a refrigerator having a storage compartment set to a soft freezing temperature zone.
Background
In normal freezing performed in a conventional refrigerator, needle-shaped crystals gradually grow from the surface of a food toward the center. Therefore, the quality of the food is affected, such as deterioration of the texture of the food after thawing due to cell destruction and loss of delicious ingredients. Therefore, a refrigerator that performs freezing to improve freezing quality has been proposed (for example, see patent document 1).
In the freezing of patent document 1, after food is put into a refrigerator and a door is closed, the food is once introduced into a supercooled state in which the food does not freeze even below a freezing point, and a physical or temperature stimulus is given to the food introduced into the supercooled state. Here, the supercooled state means a state in which the food is not frozen even if cooled to a temperature lower than the freezing temperature of the food. Thereby, the supercooled state is released, and the food is rapidly frozen. The frozen food can form ice nuclei on the whole food body, and can uniformly generate ice crystals of fine particles, thereby suppressing cell destruction of the food, suppressing deterioration of taste after thawing, and maintaining a delicious component, so that the food can be preserved with high quality even if frozen.
Patent document 1: japanese patent laid-open No. 2001-4260
In order to more reliably introduce food into a supercooled state and freeze the food in a storage room set to a soft freezing temperature range (for example, about-7 ℃), the temperature in the refrigerator is once raised to a temperature near the freezing point of the food after the food is placed in the refrigerator and the door is closed, and then the temperature in the refrigerator needs to be set to a temperature equal to or lower than the freezing point of the food in order to promote freezing of the food. However, in the conventional refrigerator as in patent document 1, after food is put into the refrigerator and the door is closed, the temperature in the refrigerator is not raised to the vicinity of the freezing point of the food but is set to a temperature equal to or lower than the freezing point. Therefore, the food may be frozen while being kept in a state where the food is not introduced into the supercooled state, and there is a problem that the food cannot be stored with high quality.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a refrigerator capable of storing food with high accuracy and high quality.
The refrigerator of the present invention comprises: a heat-insulating box body, wherein a plurality of storage chambers including a first storage chamber set as a soft freezing temperature zone are formed inside the heat-insulating box body; a door that opens and closes an opening formed in a front surface of the first storage chamber; a door opening/closing detection unit that detects opening/closing of the door; a temperature detection unit that detects a temperature of the first storage chamber; a temperature control unit that controls a temperature of the first storage chamber; and a controller that controls the temperature control unit based on a temperature detected by the temperature detector, wherein the controller performs a special temperature control in which the temperature in the refrigerator in the first storage chamber is transited to a first set temperature higher than the normal set temperature for a first time and then transited to a second set temperature lower than the normal set temperature for a second time, when the opening and closing of the door is detected in a normal temperature control in which the temperature in the refrigerator in the first storage chamber is maintained at the normal set temperature set in advance.
According to the refrigerator of the present invention, when the opening and closing of the door is detected in the normal temperature control for maintaining the refrigerator internal temperature of the first storage room set to the soft freezing temperature zone at the normal set temperature, the special temperature control is performed in which the refrigerator internal temperature of the first storage room is maintained at the first set temperature higher than the normal set temperature for the first time and then maintained at the second set temperature lower than the normal set temperature for the second time. Therefore, even after the food is placed in the refrigerator and the door is closed, the food can be more reliably introduced into the supercooled state and then frozen, and the food can be stored with high accuracy and high quality.
Drawings
Fig. 1 is a front view of a refrigerator according to embodiment 1 of the present invention.
Fig. 2 is a schematic longitudinal sectional view of the periphery of the switching chamber of the refrigerator according to embodiment 1 of the present invention.
Fig. 3 is a diagram showing the time course of the temperature in the refrigerator in the switching chamber when the switching chamber door of the refrigerator according to embodiment 1 of the present invention is opened and closed in normal temperature control.
Fig. 4 is a diagram showing the time course of the temperature in the refrigerator in the switching chamber when the switching chamber door of the refrigerator according to embodiment 1 of the present invention is opened and closed in the special temperature control.
Fig. 5 is a diagram showing a time course of the temperature in the refrigerator in the switching chamber when the switching chamber door of the refrigerator according to embodiment 2 of the present invention is opened and closed in the first set temperature maintenance in the special temperature control.
Fig. 6 is a diagram showing the time course of the temperature in the refrigerator of the switching chamber when the switching chamber door of the refrigerator according to embodiment 3 of the present invention is opened and closed.
Fig. 7 is a diagram showing the time course of the temperature in the refrigerator of the switching chamber when the switching chamber door of the refrigerator according to embodiment 4 of the present invention is opened and closed.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. In the following drawings, the relationship between the sizes of the respective components may be different from the actual one.
Fig. 1 is a front view of a refrigerator 1 according to embodiment 1 of the present invention. Fig. 2 is a schematic longitudinal sectional view of the periphery of the switching chamber of the refrigerator 1 according to embodiment 1 of the present invention.
A refrigerator 1 according to embodiment 1 of the present invention includes a heat insulating box 2 having an opening in a front surface and having a storage space formed therein. The heat insulating box body 2 is configured by filling a heat insulating material 2c such as rigid polyurethane foam between an outer box 2a made of a steel plate constituting an outer contour and an inner box 2b made of a thin-walled rigid resin such as ABS resin disposed inside the outer box 2 a.
The storage space formed inside the heat-insulating box 2 is partitioned into a plurality of storage compartments for storing food by a plurality of partition members (not shown). The refrigerator 1 according to embodiment 1 includes, as a plurality of storage compartments: the ice making apparatus includes a refrigerating compartment 100 disposed at the uppermost layer, a switching compartment 200 disposed below the refrigerating compartment 100, and an ice making compartment 300 adjacent to a side of the switching compartment 200 and disposed in parallel with the switching compartment 200. Vegetable compartment 400 disposed below switching compartment 200 and ice making compartment 300, and freezing compartment 500 disposed at the lowermost layer below vegetable compartment 400 are provided.
A split-type refrigerating chamber door 11 for opening and closing an opening formed in the front surface of refrigerating chamber 100 is provided in the opening. Opening portions formed in the front surfaces of switching chamber 200, ice making chamber 300, vegetable chamber 400, and freezing chamber 500 are provided with switching chamber door 12, ice making chamber door 13, vegetable chamber door 14, and freezing chamber door 15 of a drawer type for opening and closing the opening portions, respectively. The refrigerating chamber door 11 is provided with a setting operation unit 10 that allows a user to perform operations such as temperature setting of each storage chamber.
The refrigerating compartment 100 is set to a refrigerating temperature zone (e.g., about 3 c). The switch chamber 200 is set to a freezing temperature zone (e.g., about-18 ℃) or a soft freezing temperature zone (e.g., about-7 ℃) by switching. The ice making compartment 300 is set to a freezing temperature zone (e.g., about-18 deg.c). The vegetable room 400 is set to a refrigerating temperature zone (for example, about-6 deg.c). Freezer compartment 500 is set to a freezing temperature band (about-18 c). Here, the soft freezing temperature range may be a temperature of-4 ℃ to-10 ℃.
The arrangement of each storage room is not limited to embodiment 1, and may be other than the above. The number of storage compartments is not limited to embodiment 1, and it is sufficient to provide at least storage compartments that can be set to a soft freezing temperature range.
Each storage chamber is provided with a food storage box 18 for storing food. Each door is provided with a door opening/closing detector 19 for detecting the opening/closing of the door.
A cooling chamber (not shown) is formed on the rear surface side of the inside of the heat insulating box 2, and is partitioned into storage chambers and a cooling chamber by partitions (not shown). The cooling compartment is provided with an air blowing fan (not shown), a cooler (not shown), and the like, and cool air cooled in the cooler is sent from the cooling compartment to each storage compartment by the air blowing fan, thereby cooling each storage compartment.
The regulator 17 is disposed in an air passage 20 through which the cold air cooled by the cooler passes when the cold air is sent from the cooling compartment to each storage compartment. Each storage chamber is provided with a temperature detection unit 16 such as a thermistor. The control device 50 controls the opening degree of the adjusting device 17, the output of the compressor (not shown), and the air blowing amount of the air blowing fan based on the temperature detected by the temperature detecting unit 16 so that each storage room is maintained at the set temperature. The adjusting device 17, the compressor, and the blower fan are temperature control means.
A control device 50 and a storage device 51 are provided inside the refrigerator 1. The control device 50 controls the temperature control means based on the temperature detected by the temperature detection unit 16. The control device 50 is constituted by, for example, dedicated hardware or a CPU (also referred to as a Central Processing Unit-CPU, a Central Processing Unit, a Processing device, an arithmetic device, a microprocessor, or a processor) that executes a program stored in a memory. The storage device 51 stores various information. The storage device 51 is constituted by an EEPROM, a flash memory, or the like, for example.
Next, the control of the temperature in the refrigerator in the switching room 200 by switching the setting to the soft freezing temperature zone (-7 ℃).
Fig. 3 is a diagram showing the time course of the temperature in the refrigerator in the switching chamber 200 when the switching chamber door 12 of the refrigerator 1 according to embodiment 1 of the present invention is opened and closed in the normal temperature control.
First, the control of the refrigerator internal temperature of the switching chamber 200 when the opening and closing of the switching chamber door 12 is performed in the normal temperature control will be described. Here, the normal temperature control means control for maintaining the temperature in the refrigerator of the switching room 200 at a normal set temperature (for example, about-7 ℃). The opening and closing of the switching chamber door 12 means that the switching chamber door 12 is closed from an open state.
In the case where the opening and closing of the switching chamber door 12 is detected in the normal temperature control, the control device 50 transits the refrigerator inside temperature of the switching chamber 200 to a first set temperature (e.g., about-4 ℃) higher than the normal set temperature set without the opening and closing of the switching chamber door 12. Also, after transitioning to the first set temperature, the first set temperature is maintained for a first time (e.g., about 1 half hour). Thereafter, controller 50 transitions the temperature in the refrigerator of switching room 200 to a second set temperature (about-12 ℃) lower than the normal set temperature. Then, after transitioning to the second set temperature, the second set temperature is maintained for a second time (e.g., about two hours). Here, regarding the transition from the first set temperature to the second set temperature, it takes about 2.5 hours to perform the transition from the first set temperature to the normal set temperature. That is, the inside of the refrigerator of the switching chamber 200 is gradually cooled during this period. Also, the transition from the normal set temperature to the second set temperature takes about 10 minutes to be performed. That is, the inside of the refrigerator of the switching chamber 200 is rapidly cooled during this period. After that, the control device 50 maintains the normal set temperature until the opening and closing of the switching chamber door 12 is detected.
When the opening and closing of the switching chamber door 12 is detected in this way, the control device 50 performs the special temperature control for maintaining the refrigerator internal temperature of the switching chamber 200 at the first set temperature for the first time period and then at the second set temperature for the second time period. Here, the set temperature, the first set temperature, and the second set temperature are freezing temperature ranges of 0 ℃ or lower, respectively. The first set temperature is higher than the upper limit of the fluctuation range of the normal set temperature and is a temperature between-5 ℃ and 0 ℃ higher than the freezing start temperature of the food. The second set temperature is a temperature lower than the lower limit of the fluctuation range of the normal set temperature.
When the control device 50 detects the opening and closing of the switching chamber door 12, the special temperature control is performed, and the special temperature control can be started in accordance with the food loading performed in conjunction with the opening and closing of the switching chamber door 12. In this way, since the food is stored at the first set temperature immediately after being put in, the food is cooled more slowly than in the case of storing at the normal set temperature. In addition, since the food is stored at a temperature of-5 ℃ to 0 ℃ which is higher than or equal to the freezing start temperature, the food can be introduced into the supercooled state with high accuracy. Here, the supercooled state means a state in which the food is not frozen even if cooled to a temperature lower than the freezing temperature of the food.
The food is stored at the first set temperature for a first time and then at the second set temperature, thereby releasing the supercooled state of the food. And is cooled more rapidly than if the food product is kept at the usual set temperature after freezing has begun. In this way, by introducing the food into the supercooled state and then freezing it, it is possible to form uniform ice knots, and by rapidly cooling the food after freezing is started, it is possible to suppress the expansion of ice crystals. As a result, it is possible to suppress the deterioration of the texture of the food after thawing due to the destruction of the cells of the food caused by freezing and the influence of the loss of the delicious components on the quality of the food. That is, since the deterioration of taste after thawing can be suppressed by suppressing the destruction of cells in the food, and the delicious component can be maintained, the food can be stored with high quality even when frozen.
Further, since the setting operation unit 10 does not input that the user has performed food loading after food loading, and the control device 50 automatically starts the special temperature control when detecting the opening/closing of the switching chamber door 12, it is possible to store food simply and with high quality. In addition, it is possible to prevent the user from forgetting to input the food through the setting operation unit 10 after the food is put in, and from not performing the special temperature control after the food is put in.
In addition, the transition from the first set temperature to the second set temperature is suppressed by gradually cooling the inside of the refrigerator from the first set temperature to the normal set temperature. Therefore, even for food materials such as chicken that are not easily introduced into the supercooled state, the food materials can be introduced into the supercooled state more stably. In addition, by rapidly cooling the inside of the refrigerator from the normal set temperature to the second set temperature, the temperature variation of the food in the refrigerator increases. Therefore, even for food materials with high lipid, such as dairy products, for which the supercooled state is difficult to be released, i.e., difficult to be frozen, the supercooled state can be reliably released.
The first time and the second time may be determined so that the average temperature in the first special temperature control is equal to the normal set temperature. In this way, even when the special temperature control is repeated, the average temperature is the normal set temperature, and therefore the shelf life of the food correlated with the temperature in the refrigerator can be maintained.
Fig. 4 is a diagram showing the time course of the temperature in the refrigerator in the switching chamber 200 when the switching chamber door 12 of the refrigerator 1 according to embodiment 1 of the present invention is opened and closed in the special temperature control.
Next, the control of the refrigerator internal temperature of the switching chamber 200 when the opening and closing of the switching chamber door 12 is performed in the special temperature control will be described.
When the opening/closing of the switching chamber door 12 is detected in the special temperature control, the control device 50 starts the special temperature control again from the beginning. That is, the controller 50 makes the temperature in the refrigerator of the switching chamber 200 transit from the current temperature to the first set temperature, and maintains the first time after the transit to the first set temperature. Then, the controller 50 transits the refrigerator internal temperature of the switching chamber 200 to the second set temperature, and maintains the temperature for the second time after the transition to the second set temperature. Then, the control device 50 maintains the refrigerator internal temperature of the switching chamber 200 at the normal set temperature until the opening and closing of the switching chamber door 12 is detected.
In addition, when the opening and closing of the switching chamber door 12 is detected in the special temperature control that has been resumed from the beginning, the control device 50 resumes the special temperature control from the beginning again.
In this way, when the switching of the opening and closing of the chamber door 12 is detected during the special temperature control, the control device 50 starts the special temperature control again from the beginning. This makes it possible to more reliably introduce the food into the supercooled state, and therefore, even when the food is additionally placed, the food can be stored with high precision and high quality.
In addition, when the resumption from the beginning of the special temperature control occurs so that the average temperature in the one special temperature control is the same as the normal set temperature, the values of the first time and the second time may be changed from the originally set values. That is, when the resumption from the first start of the special temperature control occurs, the controller 50 may change the first time and the second time from the values in the case where the resumption from the first start of the special temperature control does not occur so that the average temperature in the first special temperature control is equal to the normal set temperature. In this way, even when the special temperature control is repeated, the average temperature is the normal set temperature, and therefore the shelf life of the food correlated with the temperature in the refrigerator can be maintained.
Further, refrigerating room 100 set to a refrigerating temperature zone is disposed above switching room 200 set to a soft freezing temperature zone by switching, and vegetable room 400 set to a refrigerating temperature zone is disposed below switching room 200.
Here, if the switching room 200 is surrounded by a storage room set at a temperature lower than the normal set temperature, heat is absorbed by the surrounding storage room. Therefore, in order to maintain the temperature in the refrigerator of the switching chamber 200 at the first set temperature equal to or higher than the normal set temperature, a new member such as a heat input device may be required. Therefore, a storage room set to a temperature range of a refrigerating room equal to or higher than the first set temperature is disposed at a position above and below the switching room 200. Since heat is input from the ceiling and the bottom of the switching chamber 200 in this way, the refrigerator internal temperature of the switching chamber 200 can be maintained at the first set temperature only by controlling the opening degree of the adjustment device 17 without adding a new heat input device or the like. Even if the storage room set to the refrigerating room temperature zone equal to or higher than the first set temperature is disposed only at one of the upper and lower positions adjacent to the switching room 200, the same effect as described above can be obtained, but greater effects can be obtained by disposing both of them.
As described above, the refrigerator 1 according to embodiment 1 includes: a heat-insulating box 2 in which a plurality of storage compartments including a switching compartment 200 set to a soft freezing temperature range are formed; and a switching chamber door 12 that opens and closes an opening portion formed in the front surface of the switching chamber 200. Further, the apparatus comprises: a door opening/closing detection unit 19 that detects opening/closing of the switching chamber door 12; a temperature detection unit 16 for detecting the temperature of the switching chamber 200; a temperature control unit that controls the temperature of the switching chamber 200; and a control device 50 that controls the temperature control means based on the temperature detected by the temperature detection unit 16. When the opening/closing of the switching chamber door 12 is detected in the normal temperature control for maintaining the refrigerator internal temperature of the switching chamber 200 at the normal set temperature set in advance, the control device 50 performs the special temperature control for transitioning the refrigerator internal temperature of the switching chamber 200 to the first set temperature higher than the normal set temperature for the first time period and then to the second set temperature lower than the normal set temperature for the second time period.
According to the refrigerator 1 of embodiment 1, when the opening and closing of the switching chamber door 12 is detected in the normal temperature control for maintaining the refrigerator internal temperature of the switching chamber 200 set to the soft freezing temperature zone at the normal set temperature, the special temperature control is performed in which the refrigerator internal temperature of the switching chamber 200 is maintained at the first set temperature higher than the normal set temperature for the first time and thereafter maintained at the second set temperature lower than the normal set temperature for the second time. Therefore, the food can be more reliably introduced into the supercooled state and then frozen, and the food can be stored with high precision and high quality.
In the refrigerator 1 according to embodiment 1, when the opening/closing of the switching chamber door 12 is detected during the special temperature control, the control device 50 starts the special temperature control again from the beginning.
According to the refrigerator 1 of embodiment 1, when the opening and closing of the switching chamber door 12 is detected during the special temperature control, the special temperature control is resumed from the beginning. Therefore, the food can be more reliably introduced into the supercooled state, and therefore, even when the food is additionally placed, the food can be stored with high accuracy and high quality.
In the refrigerator 1 according to embodiment 1, in the process of transition from the first set temperature to the second set temperature in the special temperature control, the control device 50 performs control to make the transition from the first set temperature to the normal set temperature take longer time than the transition from the normal set temperature to the second set temperature.
According to the refrigerator 1 of embodiment 1, the inside of the refrigerator is gradually cooled from the first set temperature to the normal set temperature, and therefore, the temperature variation of the food in the refrigerator is suppressed. Therefore, even for food materials such as chicken that are difficult to be introduced into the supercooled state, the food materials can be introduced into the supercooled state more stably. In addition, since the inside of the refrigerator is rapidly cooled from the normal set temperature to the second set temperature, the temperature variation of the food inside the refrigerator becomes large. Therefore, even for food materials with high lipid content such as dairy products, which are difficult to release the supercooled state, i.e., which are difficult to freeze, the supercooled state can be reliably released.
In the refrigerator 1 according to embodiment 1, the first time and the second time are determined so that the average temperature in the first special temperature control is the same as the normal set temperature.
According to the refrigerator 1 of embodiment 1, even when the special temperature control is repeated, the average temperature is the normal set temperature, and therefore the shelf life of the food correlated with the temperature in the refrigerator can be maintained.
In the refrigerator 1 according to embodiment 1, the refrigerator internal temperature of at least one of the storage compartments adjacent to the switching compartment 200 is set to the refrigerating temperature band. Alternatively, refrigerating room 100 set to a refrigerating temperature zone is disposed above switching room 200, and vegetable room 400 set to a refrigerating temperature zone is disposed below switching room 200.
According to refrigerator 1 of embodiment 1, a storage room set to a refrigerating room temperature zone equal to or higher than a first set temperature is disposed at a position adjacent to switching room 200. Therefore, the refrigerator internal temperature of the switching chamber 200 can be maintained at the first set temperature only by controlling the opening degree of the adjusting device 17 without newly adding a heat input device or the like due to heat input from the ceiling and the bottom of the switching chamber 200.
Hereinafter, although embodiment 2 of the present invention will be described, the description of the configuration overlapping with embodiment 1 will be omitted, and the same reference numerals will be given to the same or corresponding portions as embodiment 1. In embodiment 2, the temperature control performed when opening and closing the switching chamber door 12 of the refrigerator 1 is performed in the special temperature control is different from that in embodiment 1.
Fig. 5 is a diagram showing the time course of the temperature in the refrigerator in the switching chamber 200 when the switching chamber door 12 of the refrigerator 1 according to embodiment 2 of the present invention is opened and closed in the first set temperature maintenance in the special temperature control.
Hereinafter, the control of the refrigerator internal temperature of the switching chamber 200 when the switching chamber door 12 is opened and closed during the first set temperature maintenance in the special temperature control will be described.
When the opening and closing of the switching chamber door 12 is detected in the special temperature control and the temperature in the refrigerator of the switching chamber 200 is maintained at the first set temperature, the control device 50 does not restart the special temperature control from the beginning but continues the special temperature control as it is. Then, the control device 50 maintains the temperature in the refrigerator of the switching chamber 200 at the first set temperature for the first time. Then, the controller 50 transits the refrigerator internal temperature of the switching chamber 200 to the second set temperature, and maintains the temperature for the second time after the transition to the second set temperature. Then, the control device 50 maintains the refrigerator internal temperature of the switching chamber 200 at the normal set temperature until the opening and closing of the switching chamber door 12 is detected.
In this way, when the opening and closing of the switching chamber door 12 is detected during the special temperature control and the temperature in the refrigerator of the switching chamber 200 is maintained at the first set temperature, the control device 50 does not resume the special temperature control from the beginning but continues as it is. When food is additionally put into the refrigerator while the temperature in the switching chamber 200 is maintained at the first set temperature, the food is slowly cooled, and therefore the food is highly likely to be introduced into the supercooled state. That is, the food can be stored with high quality without restarting the special temperature control from the beginning, and the time for maintaining the first set temperature caused by restarting the special temperature control from the beginning can be suppressed. As a result, the time during which the temperature in the refrigerator of the switching chamber 200 becomes higher than the normal set temperature can be shortened. Accordingly, the accuracy of high-quality storage of the food is not reduced by introducing the food into the supercooled state, and the influence on the storage quality of the conventional food due to the increase in the temperature in the refrigerator of the switching chamber 200 can be suppressed.
As described above, in the refrigerator 1 according to embodiment 2, when the opening and closing of the switching chamber door 12 is detected during the special temperature control and the refrigerator internal temperature of the switching chamber 200 is maintained at the first set temperature, the control device 50 continues the special temperature control without resuming the special temperature control from the beginning.
According to the refrigerator 1 of embodiment 2, when the opening and closing of the switching chamber door 12 is detected during the special temperature control and the temperature in the refrigerator in the switching chamber 200 is maintained at the first set temperature, the special temperature control is not resumed from the beginning and is continued as it is. Therefore, the food can be stored with high quality without restarting the special temperature control from the beginning, and the time for maintaining the first set temperature caused by restarting the special temperature control from the beginning can be suppressed. As a result, the time during which the temperature in the refrigerator of the switching chamber 200 becomes higher than the normal set temperature can be shortened. Accordingly, the accuracy of high-quality preservation of the food is not reduced by introducing the food into the supercooled state, and the influence of the temperature rise in the refrigerator of the switching chamber 200 on the preservation quality of the conventional food can be suppressed.
Hereinafter, although embodiment 3 of the present invention will be described, the description of the configuration overlapping with embodiments 1 and 2 will be omitted, and the same reference numerals will be given to the same or corresponding portions as those in embodiments 1 and 2. Embodiment 3 is different from embodiments 1 and 2 in that the special temperature control is performed based on the record of the opening and closing of the switching chamber door 12 in the past.
Fig. 6 is a diagram showing the time course of the temperature in the refrigerator in the switching chamber 200 when the switching chamber door 12 of the refrigerator 1 according to embodiment 3 of the present invention is opened and closed.
In embodiment 3, the number of times the switching chamber door 12 is opened and closed, which is detected by the door opening/closing detection unit 19, for several days is stored in the storage device 51 for each hour.
The control device 50 calculates an average value of the number of times of opening and closing the switching chamber door 12 in each time period from the information stored in the storage device 51. Then, a time zone in which the number of times of opening and closing of the switching chamber door 12 is small, which is a time zone in which the number of times of opening and closing becomes equal to or less than a preset first threshold value (for example, 0.3 times) among the average number of times in each time zone, is set as the non-use time zone. Here, in the time zone in which the number of times of opening and closing of the switching chamber door 12 is small, since there is a high possibility that the user is not moving in the residence for sleeping, going out, or the like, the special temperature control is not performed when the opening and closing of the switching chamber door 12 is performed in the non-use time zone. Accordingly, in consideration of the use state of the refrigerator 1 by the user, when the possibility of food insertion is low, the user can confirm the food insertion with high accuracy without performing special temperature control that causes temperature fluctuation in the refrigerator. Therefore, the influence of the temperature fluctuation in the refrigerator on the storage quality of the conventional food can be suppressed.
Further, the following may be configured: not only the results of switching the rooms 200 are stored in the storage device 51, but also the number of times the door opening/closing detection unit 19 of each of the other storage rooms is opened/closed is stored in the storage device 51, and the non-use time period is set based on the information on the door opening/closing of each of the storage rooms stored in the storage device 51.
In addition, an average value of the number of times of opening and closing of the switching chamber door 12 in each time period is calculated from the information stored in the storage device 51. In addition, a time zone in which the average number of times in each time zone is equal to or greater than a preset second threshold (for example, 1.0 time), that is, a time zone in which the number of times of opening and closing of the switching chamber door 12 is particularly large is set as a plurality of life time zones. When the opening and closing of the switching chamber door 12 is detected, the special temperature control is performed only at the first detection and is not performed at the second and subsequent detections in each living time zone. Here, in a time zone in which the opening and closing of the switching chamber door 12 is large, the possibility that the user is in cooking or after shopping is high, and therefore, the possibility that food is put in is high in the opening and closing of the switching chamber door 12 in a life time zone. Therefore, the special temperature control is performed at the time of the first opening/closing of the switching chamber door 12, and the possibility of putting food is low at the time of the second and subsequent opening/closing of the switching chamber door 12, which is low in possibility during cooking or after shopping, and therefore the special temperature control is not performed.
In this way, in consideration of the use state of the refrigerator 1 by the user up to now, the special temperature control is performed when the possibility of putting the food is high, and the special temperature control is not performed when the possibility of putting the food is low. In this way, the food can be introduced into the supercooled state with high accuracy, and the influence of the temperature fluctuation in the refrigerator on the storage quality of the conventional food can be suppressed.
As described above, in the refrigerator 1 according to embodiment 3, the control device 50 sets the time zone in which the average value of the number of times of opening and closing the switching chamber door 12 in each time zone in one day is equal to or less than the first threshold as the non-use time zone, based on the information stored in the storage device 51. Also, in the case where the opening and closing of the switching chamber door 12 is detected without using the time period, the special temperature control is not performed.
According to the refrigerator 1 of embodiment 3, in consideration of the use state of the refrigerator 1 by the user, when the possibility of putting food is low, special temperature control that causes temperature fluctuation in the refrigerator is not performed. In this way, the food can be accurately checked, and the influence of the temperature fluctuation in the refrigerator on the storage quality of the conventional food can be suppressed.
In addition, in the refrigerator 1 according to embodiment 3, the control device 50 sets, as the living time zone, a time zone in which the average value of the number of times of opening and closing the switching chamber door 12 is equal to or greater than the second threshold value in each time zone during the day, based on the information stored in the storage device 51. When the switching of the door 12 is detected a plurality of times during the life time, the special temperature control is performed only at the first detection and is not performed at the second and subsequent detections.
In addition, in the refrigerator 1 according to embodiment 3, the control device 50 sets a plurality of life time periods. In addition, when the opening and closing of the door are detected a plurality of times in the same life time zone, the special temperature control is performed only at the time of the first detection, and the special temperature control is not performed at the time of the second and subsequent detections.
According to the refrigerator 1 of embodiment 3, in consideration of the use state of the refrigerator 1 by the user up to now, the special temperature control is performed when the possibility of food being put in is high, and the special temperature control is not performed when the possibility of food being put in is low. In this way, the food can be introduced into the supercooled state with high accuracy, and the influence of the temperature fluctuation in the refrigerator on the storage quality of the conventional food can be suppressed.
Hereinafter, embodiment 4 of the present invention will be described, but the description of the configuration overlapping with embodiments 1 to 3 will be omitted, and the same reference numerals are given to the same or corresponding portions as embodiments 1 to 3. Embodiment 4 is different from embodiments 1 to 3 in that the refrigerator temperature averaged over one day is maintained at the normal set temperature even when the special temperature control is performed.
Fig. 7 is a diagram showing the time course of the refrigerator internal temperature of the switching chamber 200 when the switching chamber door 12 of the refrigerator 1 according to embodiment 4 of the present invention is opened and closed.
In embodiment 4, the refrigerator internal temperature of the switching room 200 is stored in the storage device 51 for a certain period of time (for example, one day).
The control device 50 calculates the average temperature of the daily life time of the temperature in the refrigerator of the switching room 200 based on the information stored in the storage device 51. When the calculated average temperature is higher than the normal set temperature, temperature averaging control is performed for a third time period to maintain the temperature in the refrigerator of the switching chamber 200 at a second set temperature lower than the normal set temperature so that the average temperature is equal to the normal set temperature.
Accordingly, even when the special temperature control is performed a plurality of times a day, the refrigerator internal temperature of the switching chamber 200 can be maintained to be the same as the normal set temperature, and thus the shelf life of the food correlated with the refrigerator internal temperature can be maintained. In addition, since the frozen food has a higher freezing rate and is solidified more as the storage temperature of the food is lower, there is a high possibility that a trouble such as thawing before cooking occurs in the food stored at a second set temperature lower than the normal set temperature. However, since the second set temperature is maintained during the non-use period and the temperature in the refrigerator is set to the normal set temperature when the user is in transition to the living period, it is possible to prevent the problem that the food is hard when the user cooks the food.
As described above, in the refrigerator 1 according to embodiment 4, the control device 50 calculates the average temperature of the refrigerator internal temperature of the first storage room for a predetermined period of time based on the information stored in the storage device 51. When the average temperature is higher than the normal set temperature, temperature averaging control is performed to maintain the temperature in the refrigerator in the first storage chamber at the second set temperature for a third time period so that the average temperature is equal to the normal set temperature.
According to the refrigerator 1 of embodiment 4, even when the special temperature control is performed a plurality of times within a certain period, the temperature in the refrigerator of the switching chamber 200 can be maintained to be equal to the normal set temperature. Therefore, the shelf life of the food correlated with the temperature in the refrigerator can be maintained.
In addition, in the refrigerator 1 according to embodiment 4, the control device 50 calculates the average temperature of the temperature in the refrigerator in the first storage room during the daily life time period based on the information stored in the storage device 51. When the average temperature of the living time zone is higher than the normal set temperature, the temperature averaging control is performed so that the average temperature of the living time zone is equal to the normal set temperature without using the time zone.
According to the refrigerator 1 of embodiment 4, since the second set temperature is maintained during the non-use period and the normal set temperature is set when the living period is shifted, it is possible to suppress the problem that the food is hard when the user cooks.
Description of the reference numerals
1 … refrigerator; 2 … heat insulation box; 2a … outer carton; 2b … inner box; 2c … insulation; 10 … setting operation part; 11 … refrigerating chamber door; 12 … switching door; 13 … Ice making chamber door; 14 … vegetable room door; 15 … freezer door; 16 … temperature detecting part; 17 … adjustment device; 18 … food storage box; 19 … door open/close detection part; 20 … air path; 50 … control device; 51 … storage means; 100 … a refrigerating chamber; 200 … switching chamber; 300 … ice making chamber; 400 … vegetable room; 500 … and freezing chamber.
Claims (14)
1. A refrigerator is characterized by comprising:
a heat-insulating box body, wherein a plurality of storage chambers including a first storage chamber set as a soft freezing temperature zone are formed inside the heat-insulating box body;
a door that opens and closes an opening formed in a front surface of the first storage chamber;
a door opening/closing detection unit that detects opening/closing of the door;
a temperature detection unit that detects a temperature of the first storage chamber;
a temperature control unit that controls a temperature of the first storage chamber; and
a control device for controlling the temperature control unit based on the temperature detected by the temperature detection unit,
when the opening and closing of the door is detected in normal temperature control for maintaining the refrigerator internal temperature of the first storage chamber at a preset normal set temperature, the control device performs special temperature control for transitioning the refrigerator internal temperature of the first storage chamber to a first set temperature higher than the normal set temperature for a first time, and thereafter transitioning to a second set temperature lower than the normal set temperature for a second time.
2. The refrigerator according to claim 1,
when the opening and closing of the door is detected during the special temperature control, the control device resumes the special temperature control from the beginning.
3. The refrigerator according to claim 2,
when the opening and closing of the door is detected in the special temperature control and the temperature in the refrigerator of the first storage room is maintained at the first set temperature, the control device does not restart the special temperature control from the beginning but continues the special temperature control as it is.
4. The refrigerator according to any one of claims 1 to 3,
in the special temperature control, the control device performs control in which, in the transition from the first set temperature to the second set temperature, it takes more time to make the transition from the first set temperature to the normal set temperature than to make the transition from the normal set temperature to the second set temperature.
5. The refrigerator according to any one of claims 1 to 4,
the first time and the second time are determined in such a manner that the average temperature in the special temperature control becomes the same as the normal set temperature.
6. The refrigerator according to any one of claims 1 to 5,
the door opening/closing device is provided with a storage device for storing the opening/closing times of the door for several days per hour.
7. The refrigerator according to claim 6,
the control device sets a time period in which an average value of the number of times of opening and closing the door in each time period in a day is equal to or less than a first threshold as a non-use time period on the basis of the information stored in the storage device,
the control means does not perform the special temperature control in a case where the open/close of the door is detected in the non-use period.
8. The refrigerator according to claim 6 or 7,
the control device sets a time zone in which an average value of the number of times the door is opened and closed in each time zone of a day is equal to or more than a second threshold as a life time zone on the basis of the information stored in the storage device,
in the case where the opening and closing of the door is detected a plurality of times during the life time, the control device performs the special temperature control only at the time of the first detection and does not perform the special temperature control at the time of the second and subsequent detections.
9. The refrigerator according to claim 8,
the control means sets a plurality of the life time periods,
in the case where the opening and closing of the door is detected a plurality of times in the same life time zone, the control device performs the special temperature control only at the time of the first detection and does not perform the special temperature control at the time of the second and subsequent detections.
10. The refrigerator according to any one of claims 6 to 9,
the storage device stores the temperature inside the refrigerator of the first storage chamber for a certain period of time,
the control device calculates an average temperature of the refrigerator internal temperature of the first storage chamber for the certain period based on the information stored in the storage device,
when the average temperature is higher than the normal set temperature, the control device performs temperature averaging control for maintaining the temperature in the refrigerator of the first storage chamber at the second set temperature for a third time such that the average temperature is equal to the normal set temperature.
11. The refrigerator according to claim 10 when dependent on claim 7,
the control means calculates an average temperature of the temperature in the refrigerator of the first storage chamber during the life time period of the day according to the information stored in the storage means,
when the average temperature of the life time zone is higher than the normal set temperature, the control device performs the temperature averaging control in the non-use time zone so that the average temperature of the life time zone becomes the same as the normal set temperature.
12. The refrigerator according to any one of claims 1 to 11,
the refrigerator internal temperature of at least one of the storage compartments adjacent to the first storage compartment is set to a refrigerating temperature zone.
13. The refrigerator according to any one of claims 1 to 12,
a freezing chamber set as a refrigerating temperature zone is disposed above the first storage chamber,
a vegetable compartment set to a refrigerating temperature zone is disposed below the first storage compartment.
14. A refrigerator is characterized by comprising:
a heat-insulating box body, wherein a plurality of storage chambers including a first storage chamber set as a soft freezing temperature zone are formed inside the heat-insulating box body;
a door that opens and closes an opening formed in a front surface of the first storage chamber;
a door opening/closing detection unit that detects opening/closing of the door;
a temperature detection unit that detects a temperature of the first storage chamber;
a temperature control unit that controls a temperature of the first storage chamber; and
a control device for controlling the temperature control unit based on the temperature detected by the temperature detection unit,
the control device performs either normal temperature control for maintaining the refrigerator internal temperature of the first storage chamber at a preset normal set temperature or special temperature control for transitioning to a second set temperature lower than the normal set temperature for a second time after transitioning to a first set temperature higher than the normal set temperature and maintaining the first set temperature for a first time, based on opening and closing of the door,
a freezing chamber set as a refrigerating temperature zone is disposed above the first storage chamber,
a vegetable compartment set to a refrigerating temperature zone is disposed below the first storage compartment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/000442 WO2020144791A1 (en) | 2019-01-10 | 2019-01-10 | Refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111684219A true CN111684219A (en) | 2020-09-18 |
| CN111684219B CN111684219B (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980001939.0A Active CN111684219B (en) | 2019-01-10 | 2019-01-10 | Refrigerator with a door |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP7217758B2 (en) |
| CN (1) | CN111684219B (en) |
| AU (1) | AU2019421824B2 (en) |
| SG (1) | SG11202104424VA (en) |
| TW (1) | TWI747106B (en) |
| WO (1) | WO2020144791A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022172317A1 (en) * | 2021-02-09 | 2022-08-18 | 三菱電機株式会社 | Refrigerator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249419A (en) * | 1998-09-25 | 2000-04-05 | 三菱电机株式会社 | Refrigerator and its use method |
| JP2001004260A (en) * | 1999-06-25 | 2001-01-12 | Matsushita Refrig Co Ltd | Overcooling-controlling refrigerator |
| CN105588400A (en) * | 2014-11-07 | 2016-05-18 | Lg电子株式会社 | Refrigerator and method for controlling the same |
| WO2016125274A1 (en) * | 2015-02-04 | 2016-08-11 | 三菱電機株式会社 | Refrigerator |
| JP2017015344A (en) * | 2015-07-03 | 2017-01-19 | 日立アプライアンス株式会社 | refrigerator |
| WO2018033956A1 (en) * | 2016-08-16 | 2018-02-22 | 三菱電機株式会社 | Refrigerator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4827788B2 (en) * | 2007-04-17 | 2011-11-30 | 三菱電機株式会社 | refrigerator |
| JP6195521B2 (en) | 2014-01-06 | 2017-09-13 | 三菱電機株式会社 | refrigerator |
-
2019
- 2019-01-10 CN CN201980001939.0A patent/CN111684219B/en active Active
- 2019-01-10 WO PCT/JP2019/000442 patent/WO2020144791A1/en active Application Filing
- 2019-01-10 AU AU2019421824A patent/AU2019421824B2/en active Active
- 2019-01-10 SG SG11202104424VA patent/SG11202104424VA/en unknown
- 2019-01-10 JP JP2020565092A patent/JP7217758B2/en active Active
- 2019-12-16 TW TW108145964A patent/TWI747106B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249419A (en) * | 1998-09-25 | 2000-04-05 | 三菱电机株式会社 | Refrigerator and its use method |
| JP2001004260A (en) * | 1999-06-25 | 2001-01-12 | Matsushita Refrig Co Ltd | Overcooling-controlling refrigerator |
| CN105588400A (en) * | 2014-11-07 | 2016-05-18 | Lg电子株式会社 | Refrigerator and method for controlling the same |
| WO2016125274A1 (en) * | 2015-02-04 | 2016-08-11 | 三菱電機株式会社 | Refrigerator |
| JP2017015344A (en) * | 2015-07-03 | 2017-01-19 | 日立アプライアンス株式会社 | refrigerator |
| WO2018033956A1 (en) * | 2016-08-16 | 2018-02-22 | 三菱電機株式会社 | Refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020144791A1 (en) | 2020-07-16 |
| JPWO2020144791A1 (en) | 2021-09-09 |
| TW202026577A (en) | 2020-07-16 |
| AU2019421824A1 (en) | 2021-05-27 |
| JP7217758B2 (en) | 2023-02-03 |
| CN111684219B (en) | 2021-12-14 |
| AU2019421824B2 (en) | 2022-07-14 |
| SG11202104424VA (en) | 2021-05-28 |
| TWI747106B (en) | 2021-11-21 |
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