JP6712301B2 - Storage - Google Patents

Description

Embodiments of the present invention relate to storage.

Conventionally, CA (Controlled Atmosphere) storage methods include a gas replacement method that is often used in the food industry, a vacuum method that reduces oxygen by reducing the pressure, and a polymer electrolyte membrane that reduces oxygen in the oxygen-reducing chamber. There are a polymer electrolyte method and an adsorption method using an oxygen adsorbent.

JP, 2010-14305, A

In the above-described oxygen reduction device, when the user opens the oxygen reduction chamber, oxygen in the air flows into the oxygen reduction chamber, and the oxygen concentration becomes approximately the same as the concentration in normal air. In this case, there was a problem that the oxygen-reduced state could not be maintained until the next oxygen-reduction operation was performed, and the stored items in the oxygen-reduced chamber could not be stored fresh.

Therefore, in view of the above problems, it is an object of the embodiment of the present invention to provide a refrigerator that can maintain a reduced oxygen state in a reduced oxygen chamber for a long time by performing a reduced oxygen operation at an appropriate time.

Embodiments of the present invention, a deoxygenation chamber to store food in a deoxygenated state, a deoxygenation device to deoxidize the deoxygenation chamber, a life mode grasping means to grasp the life mode of the user, A control unit for controlling the oxygen reduction device and a time information specifying unit capable of specifying time information are provided, and the control unit controls the oxygen reduction device according to the life mode of the user grasped by the life state grasping unit. The frequency is high when it is specified that the special life mode indicating that the predetermined storage is easily opened by the life mode grasping means occurs more frequently than the predetermined frequency in the predetermined cycle. When the time zone in which the occurrence occurs occurs again, the oxygen reduction device is not operated in a time zone that is a predetermined time period earlier than the start of the time zone.

The longitudinal cross-sectional view of the refrigerator of Embodiment 1 of this invention. The longitudinal cross-sectional view of the oxygen reducing device. FIG. 3 is an exploded perspective view of the oxygen reduction unit. The disassembled perspective view of a deoxidizer. The perspective view of a front fixing member. The perspective view of a rear fixing member. The longitudinal cross-sectional view seen from the front of the water supply device. Block diagram of a refrigerator. The longitudinal cross-sectional view of the refrigerator of Embodiment 2 of this invention. The longitudinal cross-sectional view of the refrigerator of Embodiment 3 of this invention.

Hereinafter, a deoxidizer 200 for a refrigerator according to an embodiment will be described with reference to the drawings.

Embodiment 1

The refrigerator 10 of the first embodiment will be described based on FIGS. 1 to 7. The refrigerator 10 of the present embodiment has a deoxidizing chamber 100, and the deoxidizing chamber 100 has a deoxidizing device 200.

(1) Structure of Refrigerator 10 The structure of the refrigerator 10 will be described with reference to FIG. FIG. 1 is a vertical cross-sectional view of the refrigerator 10 as seen from the side surface thereof.

The cabinet 12 of the refrigerator 10 is a heat-insulating box, which is formed of an inner box and an outer box, and a heat insulating material is filled between them. The cabinet 12 has a refrigerating compartment 14, a vegetable compartment 16, a small freezing compartment 18 and a freezing compartment 20 in order from the top, and an ice making compartment is provided next to the small freezing compartment 18. A heat insulating partition 36 is provided between the vegetable compartment 16, the small freezer compartment 18, and the ice making compartment. The refrigerator compartment 14 and the vegetable compartment 16 are partitioned by a horizontal partition body 38. A double-door type door 14a is provided on the front surface of the refrigerator compartment 14, and drawer compartment doors 16a, 18a, 20a are provided in the vegetable compartment 16, the small freezer compartment 18, the freezer compartment 20 and the ice making compartment, respectively. Further, push-in door switches 14b, 16b, 18b, 20b are provided as door opening/closing detection means on the double-door type door 14a and the pull-out type doors 16a, 18a, 20a, respectively. Detects whether it is open or closed.

A machine room 22 is provided at the bottom of the back surface of the cabinet 12, and a compressor 24 that constitutes a refrigeration cycle and the like are placed on the machine room 22. A control plate 26 is provided above the rear surface of the machine room 22.

A refrigerating evaporator (hereinafter, referred to as “R evaporator”) 28 is provided from a lower rear portion of the refrigerating compartment 14 to a rear surface of the vegetable compartment 16, and a refrigerating blower (hereinafter, “R fan”) 30 is provided below the evaporator 28. It is provided. The R evaporator 28 and the R fan 30 are arranged in an R evaporator chamber 17 formed by the evaporator cover 15. The R-evaporator 28 is provided with a tray 54 for accumulating defrost water generated in the R-evaporator 28.

A freezing evaporator (hereinafter, referred to as “F evaporator”) 32 is provided in the F evaporation chamber 29 from the back surface of the small freezing room 18 to the back surface of the freezing room 20, and a freezing blower (hereinafter, “F 34) is provided. The cool air cooled by the R evaporator 28 is blown to the refrigerating compartment 14 and the vegetable compartment 16 by the R fan 30. The cool air cooled by the F evaporator 32 is blown by the F fan 34 to the small freezing compartment 18, the ice making compartment, and the freezing compartment 20.

A refrigerating compartment sensor (hereinafter referred to as “R sensor”) 31 that detects the temperature inside the refrigerating compartment 14 is provided on the back surface of the refrigerating compartment 14, and the inside of the freezing compartment 20 is located on the back side of the freezing compartment 20. A freezing sensor (hereinafter, referred to as “F sensor”) 35 that detects the temperature is provided.

As shown in FIG. 1, the refrigerating compartment 14 is provided with a plurality of shelves 40, and a chilled compartment 44 having a drawer-type chilled container 42 is provided in the lower portion. The chilled chamber 44 is a low temperature chamber and stores meat and fish. A plurality of door pockets 46 are provided on the back surface of the door 14a of the refrigerator compartment 14. The vegetable compartment 16 is a space in which the inside is cooled to a refrigerating temperature together with the refrigerating compartment 14, and a pull-out type vegetable container 48 is provided inside and is suitable for storing vegetables.

The oxygen reduction chamber 100 is suspended by a plurality of suspension members 110 on the partition body 38 that corresponds to the ceiling of the vegetable chamber 16. A deoxidizing container 102 is provided in the deoxidizing chamber 100 so that it can be pulled out, and a door 104 is provided on the front surface of the deoxidizing container 102. The door 104 closes the deoxidizing chamber 100. A deoxidizer 200, which will be described in detail later, is attached to the rear surface of the deoxidizer chamber 100.

(2) Oxygen reduction device 200
The oxygen reduction device 200 includes a case 204 having a heat insulating property and a oxygen reduction unit 202 housed inside the case 204. The oxygen reduction unit 202 will be described with reference to FIGS. 2 to 4, the thickness of each member is thin, but the thickness is enlarged to make the description easy to understand.

A polymer electrolyte membrane (hereinafter, simply referred to as “electrolyte membrane”) 206 is provided in a vertical direction, an anode 208 is provided at a rear portion of the electrolyte membrane 206, and a cathode 210 is provided at a front portion of the electrolyte membrane 206. .. The cathode 210 is a stack of a carbon catalyst and carbon paper. A platinum catalyst is supported on each of the anode 208 and the cathode 210. The electrolyte membrane 206, the anode 208, and the cathode 210 are integrally joined using hot pressing or the like to form a deoxidized cell. An anode current collector 212 is provided behind the anode 208, and a cathode current collector 214 is provided in front of the cathode 210. Both current collectors 212 and 214 have slit-shaped openings 216 and 218 through which gas passes, respectively. Then, the anode current collector 212 conducts positive electricity to the anode 208, and the cathode current collector 214 conducts negative electricity to the cathode 210. Both current collectors 212, 214 are energized by electric wires (not shown). Further, an insulator 220 is provided between the current collectors 212 and 214 in order to prevent the current collectors 212 and 214 from contacting each other. The insulator 220 has a frame shape, and the electrolyte membrane 206, the anode 208, and the cathode 210 are housed inside.

A water supply sheet 222 made of a non-woven fabric is arranged behind the anode current collector 212 on the side of the anode 208.

A plate-shaped spacer 211 is arranged between the anode current collector 212 and the water supply sheet 222. A plurality of slit-shaped water supply openings 213 are opened in the spacer 211. The spacer 211 has a thickness of 1 mm and forms a constant space A between the anode current collector 212 and the water supply sheet 222.

The members sequentially stacked as described above are sandwiched and fixed by a pair of front and rear fixing members 224 and 226. The rear fixing member 224 arranged on the anode 208 side has a storage recess 228 for storing the stacked members, and a groove 230 through which the projecting pieces of the current collectors 212 and 214 project is provided in the upper portion. .. Further, a slit-shaped opening 232 through which gas passes is opened in the center of the rear fixing member 224.

The front fixing member 226 attached to the cathode side has a plate shape, and has a slit-shaped opening 234 in the center for allowing gas to pass therethrough. As shown in FIG. 2, with respect to the slit-shaped opening 234, the cross-sectional area on the front side and the cross-sectional area on the rear side are different, and are inclined so as to become narrower toward the rear. This is because air can be easily sent to the cathode current collector 214.

As shown in FIG. 3, the rear fixing member 224 and the front fixing member 226 are screwed with screws (not shown). A unit in which these members are integrated is referred to as a "deoxidation unit 202". The projections of both current collectors 212 and 214 project from the upper portion of the oxygen reduction unit 202, and the water supply sheet 222 hangs from the lower portion.

(3) Case 204
As shown in FIG. 4, the oxygen reduction unit 202 described above is housed inside a box-shaped case 204 having a heat insulating property. As shown in FIGS. 4 to 6, the case 204 includes a rectangular parallelepiped front case 236, a rear case 238, and a frame-shaped middle case 240 sandwiched between the front case 236 and the rear case 238. . The front case 236 is arranged on the cathode side of the oxygen reduction unit 202, the rear case 238 is arranged on the anode side, and the front case 236, the rear case 238, and the middle case 240 are not shown in the figure with the oxygen reduction unit 202 accommodated. Screwed by.

The front case 236 will be described with reference to FIGS. 4 and 5. A square reaction recess 244 is provided in the center of the rear surface of the front case 236 having a heat insulating property. Further, a groove-shaped upper flow path 246 is provided from the upper surface of the reaction recess 244 toward the upper surface of the front case 236, and an upper vent hole 248 is opened in the upper surface of the front case 236. Further, a groove-shaped lower flow channel 250 is provided downward from the lower surface of the reaction recess 244, and a lower vent hole 252 is opened in the lower surface of the front case 236. Then, as shown in FIG. 2, a rectangular parallelepiped space B is generated between the cathode current collector 214 on the cathode side and the front wall of the front case 236 by the reaction recess 244.

Next, the middle case 240 will be described with reference to FIG. The front fixing member 226 of the oxygen reduction unit 202 is housed in the central portion 242 of the frame-shaped middle case 240.

Next, the rear case 238 will be described with reference to FIGS. 4 and 6. A storage recess 254 that can store the rear fixing member 224 of the oxygen reduction unit 202 is provided in the center of the front surface of the rear case 238, and the current collectors 212 and 214 are provided from the storage recess 254 toward the upper surface of the rear case 238. Grooves 256 and 258 from which the projecting pieces respectively project are provided. An exhaust recess 260 is further provided on the rear surface of the storage recess 254, and the lower surface of the exhaust recess 260 has inclined surfaces that incline toward each other and communicates with the exhaust port 262. The exhaust port 262 opens on the lower surface of the rear case 238.

The case 204 accommodating the oxygen reduction unit 202 is attached to the rear surface of the container storage portion 104 of the oxygen reduction chamber 100. This mounting method will be described with reference to FIG.

A cube-shaped storage holding portion 264 projects toward the storage side at the center of the rear surface of the container storage portion 104. The storage case 264 stores the front case 236 of the case 204 from the rear side. Therefore, the upper hole 266 and the lower hole 268 are opened at positions corresponding to the upper air hole 248 and the lower air hole 252 which are opened on the upper surface and the lower surface of the front case 236.

Since the case 204 is in a state of protruding from the rear surface of the container housing portion 104, the cover 270 is covered so as to cover the protruding portion. The cover 270 is made of synthetic resin and is formed in a shape that covers the entire rear case 238 of the case 204. The cover 270 is provided with current collector openings 278 and 278 through which the current collectors 212 and 214 project. Further, an exhaust port 280 communicating with the exhaust port 262 of the rear case 238 is open.

(4) Water supply device 300
Next, the water supply device 300 will be described with reference to FIGS. 2 and 7.

The water supply device 300 has a water supply main body 302, and the water supply main body 302 is a horizontally long rectangular parallelepiped box. Inside the water supply main body 302, a partition wall 304 divides the water supply body 302 into upper and lower parts, and an upper part constitutes a clean water part 306 and a lower part constitutes a suction part 308. A water supply pipe 152 is connected to the upper surface of the left end portion of the water supply body 302, that is, the upper surface of the water purification section 306. Defrosting water generated from the R evaporator 28 of the refrigerator 10 is fed into the water supply pipe 152 via the tray 54.

As shown in FIG. 7, the partition wall 304 inclines downward from the portion to which the water supply pipe 152 is connected, and has a water supply hole 310 that communicates with the suction section 308 at the right end portion. Inside the water purification section 306, a water purification section 312 made of an ion exchange resin is provided. By providing this water purification unit 312, it is possible to remove the influence of the water quality of the defrosting water supplied from the R-evaporator 28 and prevent the deterioration of the oxygen reduction unit 202. That is, the defrost water is frost attached to the R-evaporator 28 and is collected in the drain pan, and thus contains metal ions. Therefore, there is a possibility that the hydrolysis of the synthetic resin fibers that form the water supply sheet 222 may be promoted. Therefore, by providing this water purification unit 312, it is possible to remove the influence of the water quality of the defrost water.

The siphoning section 308 has a water storage tank 314 for storing the water supplied from the water supply hole 310. A drainage pipe 154 is provided at the left end of the suction section 308. A partition wall 316 is provided between the drain pipe 154 and the water storage tank 314. The defrost water supplied from the water supply hole 310 is stored in the water storage tank 314. The water storage tank 314 has a recessed center, the lower portion of the water supply sheet 222 of the oxygen reduction unit 202 described above is immersed, and the water supply sheet 222 sucks up the accumulated water. When the amount of water in the water storage tank 314 increases and exceeds the partition wall 316, the water is drained from the drain pipe 154 to an evaporation tray (not shown). In addition, in the water supply main body 302 which is a horizontally long rectangular parallelepiped, the suction section 308 projects forward from the clean water section 306, and the water supply sheet 222 is pulled out from the ceiling surface projecting forward of the suction section 308.

(5) Electrical Configuration of Refrigerator 10 Next, the electrical configuration of the refrigerator 10 will be described based on the block diagram of FIG. 8.

The control board 26 is provided with a control unit 70 composed of a microcomputer and a timer 72 for measuring time. The control unit 70 has a compressor 24, a three-way valve 62 provided in the refrigeration cycle, an R fan 30, an F fan. 34, the R sensor 31, the F sensor 35, the door switches 14b, 16b, 18b, 20b, the timer 72, and the oxygen reduction device 200 are connected.

The three-way valve 62 is a valve that switches between supplying the refrigerant to the R-evaluator 28 and supplying the refrigerant to the F-evaluator 32 in the refrigeration cycle.

(6) Operating state of oxygen reducing device 200 The operating state of the oxygen reducing device 200 will be described.

First, when the refrigerator 10 is powered on, the control unit 70 starts energizing both the current collectors 212 and 214.

Next, as shown in FIGS. 2 and 5, the air in the oxygen-reducing container 106 is supplied through the lower ventilation hole 252 of the oxygen-reducing chamber 100, the downstream passage 250, the space B, and the opening 234 of the front fixing member 226. Since both current collectors 212 and 214 are energized, oxygen is depleted from the inflowing air. In the anode 208 and the cathode 210, the oxygen reduction reaction as shown in the following equations (1) and (2) is performed.

Anode: 2H2O→O2+4H++4e− (1)

Cathode...O2+4H++4e-→2H2O... (2)

Explaining this oxygen reduction reaction formula, water vapor from the water supply sheet 222 passes through the space A and is electrolyzed at the anode 208 to generate hydrogen ions (protons H+). When it reaches 210, it reacts with oxygen in the oxygen-reducing chamber 100 to generate water and consumes oxygen. As a result, oxygen is reduced and the food can be stored in CA.

(7) Operation control of oxygen reduction device 200 The timing of starting CA storage will be described.

When the refrigerator 10 is powered on, the oxygen reduction device 200 starts operating, but the control unit 70 detects that a predetermined time (for example, 1 hour) has elapsed from the start of energization and ends the energization.

Further, the control unit 70 measures the number of times of opening and the time of the drawer door 16a of the vegetable compartment 16 including the oxygen-reducing compartment 100 within 24 hours after the refrigerator 10 is powered on, and the day (24 hours) Calculate the time period during which the door is not open between 2).

Furthermore, the data obtained by detecting the opening/closing of the door 16a is accumulated over a plurality of days, and the time when the door 16a is not opened or the number of times of opening is a predetermined number or less is detected within 24 hours, and those time zones are detected. The time period during which the door 16a is not easily opened by the user is regarded as the time period, and the other time periods are regarded as the time period during which the door 16a is easily opened. A time period during which the time period during which the door 16a is difficult to open is continued for a predetermined time or more is calculated, and when the current time reaches this time period, the operation of the oxygen reduction device 200 is started.

For example, from 0:00 to 1:00 (0:00), from 1:00 to 2:00 (1:00)... From 23:00 to 24:00 (0:00) (23) One day (24 hours) is divided into 24 time zones by one hour and the time zones are set. Here, if the time during which the door 16a is opened in 24 hours is three times, for example, 6:30, 11:45, and 18:00, it is 6 o'clock, 11 o'clock in the time zone divided into 24. The time zone between 1 o'clock and 18 o'clock is the time during which the door 16a is opened, and is regarded as the time during which the door 16a is easily opened. 7 o'clock to 10 o'clock, 12 o'clock to 17 o'clock, 19 o'clock The time period from 5 o'clock to 5 o'clock is regarded as the time period when the door 14a is difficult to open.

In this case, the time during which the door 16a is difficult to be opened continues for a predetermined time or longer (for example, 2 hours or longer), from 7 o'clock to 10 o'clock, from 12 o'clock to 17 o'clock, and 19:00 o'clock. From 5 to 5 o'clock. Therefore, at least at 6 o'clock, 11 o'clock, and 18:00 o'clock, the oxygen reduction device 200 is not operated during the time period when the door 16a is easily opened, and the state in which the door 16a is difficult to open continues for a predetermined time or more at 7 o'clock. Control is performed so that the operation of the oxygen reduction device 200 is started when the time zone is from the table to the 10 o'clock, from the 12:00 to the 17:00, and from the 19:00 to the 5 o'clock.

(8) Effects As a result, the user operates the oxygen reduction device 200 in accordance with the lifestyle in which the user is likely to open the refrigerator 10, so that the oxygen reduction state can be easily maintained for a long time, and the oxygen reduction chamber can be maintained. The food freshness within 100 can be maintained in a good state.

Further, it is assumed that the operation of opening and closing the door by the user is often performed a plurality of times in a short time such as when shopping and storing food or when preparing food. As described above, by prohibiting the operation of the oxygen reducing device 200 during the time period when the door 16a is easily opened, the oxygen reducing device is operated even when the user repeatedly opens and closes the door a plurality of times in a short time. The operation of 200 is not performed for a predetermined time, and it is unlikely that the deoxidized state is released in a short time.

In addition to the time zone during which the door 16a is likely to be opened (6 o'clock, 11 o'clock, 18 o'clock in the above specific example), as a time zone during which the oxygen reduction device 200 is not operated, a predetermined time is set from this time zone. The time zone (for example, 5 o'clock, 10 o'clock, 17:00 o'clock in the above-described specific example) that goes back in time (for example, 1 hour) may be a time zone in which the oxygen reduction device 200 is not operated. In this way, by prohibiting the operation of the oxygen reduction device 200 even during a time period that is a predetermined time period earlier than the time period during which the door 16a is likely to be opened, the oxygen reduction state is not released in a short time, and the oxygen reduction is performed once. By operating the oxygen device 200, the oxygen-reduced state can be maintained for a long time, and efficient operation can be performed.

Further, as described above, when the time period during which the door 16a is difficult to open continues for a predetermined time or longer, the operation of the oxygen reduction device 200 may be performed every time, and the door 16a is difficult to open during the day. The operation of the oxygen reduction device 200 may be started only when the time zone continues for the longest (in the above-described specific example, from 19:00 to 5 o'clock).

In the above-described embodiment, the time period in which the user can easily use the refrigerator 10 is set from the opening of the door 16a of the vegetable compartment 16 which is the storage compartment including the oxygen reduction chamber 100, but the oxygen reduction chamber 100 is not provided. You may set the time zone when the user can easily use the refrigerator 10 from the opening of the door of the storage room.

Note that instead of using the door sensors 14b, 16b, 18b, 20b, the R sensor 31 and the F sensor 35 are used to measure the time during which the temperature in the refrigerator rapidly rises, and it is estimated that the door has been opened, and the door is opened. You may judge that it is a time zone.

Accordingly, the oxygen sensor 200 can be appropriately operated by grasping the living condition of the user by using the door sensor provided in the refrigerator 10 or the sensor for measuring the temperature of the storage room. Therefore, since it is not necessary to newly provide a sensor or the like for the purpose of grasping the lifestyle, it is possible to manufacture the refrigerator 10 without increasing the number of manufacturing steps or significantly increasing the cost.

Although the embodiment has been described by taking the case where the operation of the oxygen reduction device 200 is performed once a day as an example, the number of times the oxygen reduction device 200 is operated is not limited to once a day, and the oxygen reduction device 200 is operated a plurality of times a day. You may.

Embodiment 2

The second embodiment does not detect and control the opening of the door 16a of the vegetable compartment 16 but controls the oxygen reduction device 200 by grasping the living condition from the illuminance in the environment where the refrigerator 10 is installed. Different from 1.

As shown in FIG. 9, the refrigerator according to the second embodiment includes the illuminance sensor 400 at the hinge portion of the door 14a outside the refrigerator and in front of the ceiling, as shown in FIG. The illuminance sensor 400 is connected to the control unit 70, and determines the time zone in which the oxygen reduction device 200 is operated from the illuminance detected by the illuminance sensor 400.

When the illuminance detected by the illuminance sensor 400 is high, the illumination of the room in which the refrigerator is installed is turned on even in the time zone from morning to night or at night, that is, the user can use the refrigerator 10. It can be judged that the time period is high. On the other hand, when the detected illuminance is low, it is a night time period and the lighting of the room in which the refrigerator is installed is not turned on, that is, a time period in which the user is unlikely to use the refrigerator 10. Can be judged. Therefore, more specifically, when the illuminance detected by the illuminance sensor 400 is higher than a predetermined value (for example, 30 lux), the oxygen reduction device 200 is not operated, and when the illuminance is lower than the predetermined value (for example, 30 lux). Enables the oxygen reduction device 200 to operate. More specifically, when the state where the illuminance is lower than the predetermined value continues for a predetermined time (for example, 1 hour), it is determined that the user is unlikely to use the refrigerator 10, and the operation of the oxygen reduction device 200 is performed. Start.

As a result, the life style of the user is estimated from the brightness of the room in which the refrigerator 10 is installed, regardless of whether the door is opened or closed, and the oxygen reduction device 200 is operated during a time when it is unlikely that the user will open the refrigerator 10. Therefore, the inside of the oxygen reduction chamber 100 can be maintained in the oxygen reduced state for a long time.

Embodiment 3

The third embodiment is different from the above-described embodiments in that it detects whether the door 104 of the oxygen reduction chamber 100 is opened and controls the oxygen reduction device 200 based on the detection result.

As shown in FIG. 10, a push-in type door switch 100b, which is a door opening/closing detection unit that detects opening/closing of a door 104 that closes the oxygen reduction chamber 100, is provided behind the deoxidizable oxygen container 102, and the door 104 is opened. The determined time zone is measured in the same manner as in the first embodiment. For example, if the time when the door 104 is opened is 2 times 11:20 and 19:30 in 24 hours, one day (24 hours) is divided into 24 hours by 1 hour. , 19:00 is the time when the door 104 is opened, and these times are considered as the time when the door 104 is easily opened. From 12:00 to 18:00, from 20:00 to 10:00 The time zone up to the stand is regarded as the time zone when the door 104 is difficult to open.

In this case, the longest time period when the door 104 is not opened is the time period from 20:00 to 10:00. Therefore, the oxygen reduction device 200 is not operated during the time zone of at least 11 o'clock and 19 o'clock, and the time zone that is a predetermined time (for example, 1 hour) back from this time zone, and the state in which the door 104 is not opened is the most preferable. Control is performed so that the operation of the oxygen reduction device 200 is started at 20:00, which can be maintained for a long time.

As a result, the user operates the oxygen reduction device 200 in accordance with the lifestyle in which the time zone the user is likely to open the oxygen reduction chamber 100, so that the oxygen reduction state can be easily maintained for a long time, and the inside of the oxygen reduction chamber 100 can be maintained. The food freshness of can be kept in good condition.

Further, the door opening detection means is not limited to the door switch 100b, and a weight sensor may be provided in the oxygen reduction chamber 100 to estimate the time when the door 104 is opened from the time when the weight changes. Alternatively, it may be determined that the door 104 is opened when an image capturing unit that captures an image of the inside of the oxygen reduction chamber 100 is provided and when it is determined that the storage amount has changed from the captured image.

Although the embodiment has been described by taking the case where the operation of the oxygen reduction device 200 is performed once a day as an example, the number of times the oxygen reduction device 200 is operated is not limited to once a day, and the oxygen reduction device 200 is operated a plurality of times a day. Alternatively, the operation may be started when the opening of the door 104 is detected after the operation of the oxygen reduction device 200.

Example of change

Although the oxygen reduction chamber 100 is provided in the ceiling portion of the vegetable compartment 16 in the above embodiment, the oxygen reduction chamber 100 may be provided in the chilled chamber 44 instead. The reason for this is that the oil and fat contained in the meat stored in the chilled chamber 44 is prevented from being oxidized and it is suitable for storing meat and the like.

Further, although the above embodiment has been described by taking a refrigerator having a cooling function as an example, it is needless to say that it can be applied to a storage without a cooling function such as a storage for exclusive use of rice and vegetables.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the scope equivalent thereto.

10... Refrigerator, 14... Refrigerator room, 16... Vegetable room, 70... Control part, 72... Timer, 100... Deoxidization room, 102... Deoxidation container, 104 ... Door, 200 ... Oxygen reduction device, 400 ... Illuminance sensor

Claims (7)

A hypoxia chamber that stores food in a hypoxic state,
A deoxygenation device for deoxidizing the deoxidation chamber,
A life style grasping means for grasping the life style of the user,
A control unit for controlling the oxygen reduction device,
Time information specifying means capable of specifying time information,
Equipped with
The control unit controls the oxygen reduction device according to the lifestyle of the user as grasped by the lifestyle ascertaining means, and can easily open the storage predetermined by the lifestyle ascertaining means in a predetermined cycle. When it is specified that the special life mode indicating is occurring more frequently than the predetermined frequency, when the time period in which the high frequency occurs again comes in a time period that is a predetermined time earlier than the start of the time period. A storage that does not operate the oxygen reduction device. The storage according to claim 1, wherein the life mode grasping means is a door opening/closing detecting means of the storage. Equipped with a timer to measure the time,
The control unit measures the opening time at which the opening is detected by the timer when the door opening and closing detection unit detects the opening of the door, and the time period during which the oxygen reduction operation is not performed by going back a predetermined time from the opening time. The storage according to claim 2, which is set. Equipped with a timer to measure the time,
The said control part detects the time zone with little door opening/closing in 24 hours by the said door opening/closing detection means, and operates the said oxygen reduction apparatus so that this time zone with few door opening/closing may be included. The listed storage. The storage according to claim 1, wherein the living condition grasping means is an illuminance sensor for detecting illuminance outside the storage. The storage according to claim 5, wherein the control unit controls the oxygen reduction device not to operate when the illuminance detected by the illuminance sensor is higher than a predetermined value. Equipped with a vegetable compartment suitable for storing vegetables,
7. The storage according to claim 1, wherein the oxygen-reducing chamber is located inside the vegetable chamber.

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