JP6782338B2 - refrigerator - Google Patents

Description

Embodiments of the present invention relate to refrigerators.

Conventionally, a refrigerator equipped with a clock and a door open / close detecting means has been known. This refrigerator keeps recording the time when the door is opened and closed, and determines and stores the time zone when the door is opened and closed frequently and the time zone when the door is opened and closed from the result. Then, based on the stored determination result, the refrigerator does not perform a predetermined operation (for example, removal of fine particles in the refrigerator) during a time period when the number of times the door is opened and closed is large, and a predetermined operation is performed during a time period when the number of times the door is opened and closed is small. (See, for example, Patent Document 1). Therefore, the refrigerator can prevent a predetermined operation, which is not preferable to be performed during the time when the door is opened and closed frequently, from being performed during the time when the door is opened and closed frequently.

Japanese Unexamined Patent Publication No. 2015-14398

However, since it is not always easy to control such a refrigerator, another method of performing a predetermined operation during a time period when the number of times the door is opened and closed is small has been desired.

Therefore, it is an object of the present invention to provide a refrigerator in which a predetermined operation is performed during a time period when the number of times the door is opened and closed is small.

The refrigerator of the embodiment includes a door that opens and closes an opening of a storage chamber, a door open / close detection unit that detects the opening / closing of the door, a predetermined function, and a control unit that controls the predetermined function. , The door opening / closing detection unit sets a start time for starting detection of opening / closing of the door and an end time for ending detection of opening / closing of the door, and at least one of the start time and the end time. wherein the predetermined function is operated, upon detecting the opening and closing of the door between the said start time to the end time, and the end time and the start time shifted a predetermined time, the predetermined function is reduced oxygen functionality on the basis of the , Power saving function or defrosting function .

FIG. 5 is a cross-sectional view of the refrigerator 10 of the embodiment. A cross-sectional view of the oxygen reducing device 50 in the front-rear direction of the refrigerator. Block diagram of refrigerator 10. The flowchart which shows the control example 1 by the control unit 70. The flowchart which shows the control example 2 by the control unit 70. The flowchart which shows the control example 3 by the control unit 70. The flowchart which shows the control example 4 by the control unit 70.

This embodiment will be described with reference to the drawings.

(Structure of refrigerator 10 of this embodiment)
As shown in FIG. 1, the refrigerator 10 according to the present embodiment includes a refrigerator main body 12 in which an outer box forming an outer shell of the refrigerator 10 and an inner box forming a storage space are combined. A foam insulation material or the like is filled between the outer box and the inner box. The storage space is divided into an upper refrigerating space 20 and a lower freezing space 40.

The refrigerating space 20 is a space cooled to a refrigerating temperature (for example, 2 to 3 ° C.). The inside of the refrigerating space 20 is divided into an upper refrigerating room 21 as a storage room and a lower vegetable room 22 as a storage room. A chilled chamber 23 is provided in the lower part of the refrigerator compartment 21. The inside of the chilled chamber 23 is a place that is kept at a particularly low temperature in the refrigerating room 21, and is a place where meat, fish, and the like are stored. The opening of the refrigerating chamber 21 is closed by a refrigerating chamber door 24 rotatably provided by hinges provided on one side thereof.

The opening of the vegetable compartment 22 is closed by a pull-out door 25. A vegetable container 26 is held behind the pull-out door 25. The vegetable container 26 is configured to be pulled out integrally with the pull-out door 25. The opening and closing of the pull-out door 25 of the vegetable compartment 22 can be detected by the door sensor 73 (see FIG. 3) as the door opening / closing detection unit. Above the vegetable container 26 in the vegetable compartment 22, an oxygen reducing chamber 30 for reducing the oxygen concentration inside is provided. The oxygen reducing chamber 30 includes a holder 31 fixed to the upper wall of the vegetable compartment 22 and a storage container 32 that can be taken in and out from the front opening of the holder 31. The storage container 32 is a drawer type, and the front surface thereof also serves as the front door of the oxygen reducing chamber 30.

An oxygen reducing device 50 is fitted in the rear wall of the oxygen reducing chamber 30. The front portion of the oxygen reducing device 50 is arranged inside the oxygen reducing chamber 30, and the rear portion of the oxygen reducing device 50 is arranged outside the oxygen reducing chamber 30. The structure of the oxygen reducing device 50 is not limited, but is, for example, as shown in FIG. 2, a structure in which a plurality of sheet-like members are laminated and stored in the case 51. One of the sheet-like members is a polymer electrolyte membrane 55 through which electrons and anions cannot pass but cations can pass through. A cathode layer 56 is arranged in front of the polymer electrolyte membrane 55, and an anode layer 57 is arranged behind the polymer electrolyte membrane 55. Further, a minus-side current collector 58 is arranged in front of the cathode layer 56, and a plus-side current collector 59 is arranged behind the anode layer 57. The current collectors 58 and 59 are mesh-like and allow gas to pass through. The negative side current collector 58 and the positive side current collector 59 are connected to a power source. Further, water repellent layers 61 and 62 are arranged in front of the current collector 58 on the minus side and behind the current collector 59 on the plus side, respectively. The water-repellent layers 61 and 62 are made of a polymer film that does not allow water to pass through but allows water vapor to pass through. A water supply sheet 63 is arranged behind the water-repellent layer 62 behind the current collector 59 on the plus side. The water supply sheet 63 is made of a non-woven fabric, and sucks water from a water storage unit provided below the oxygen reducing device 50. The plurality of sheet-like members laminated as described above are fixed from the front and back in the case 51 by the fixing members 65 and 66. The case 51 has an opening 52 that opens into the oxygen reducing chamber 30 on the front surface and an opening 53 that opens to the outside of the oxygen reducing chamber 30 on the rear surface.

In the oxygen reducing device 50 having such a structure, when the current collector 58 on the minus side and the current collector 59 on the plus side are energized, the following reaction occurs in the cathode layer 56 and the anode layer 57.
The cathode layer ^{_{56 O 2 + 4H + + 4e}} - → 2H 2 O
Anode layer 57 2H ₂ O → O ₂ + 4H ⁺ + 4e ⁻
That is, the water vapor generated in the water supply sheet 63 and passing through the water repellent layer 62 is decomposed in the anode layer 57, and hydrogen ions, which are cations, are generated. The hydrogen ions pass through the polymer electrolyte membrane 55 and combine with oxygen in the cathode layer 56 to generate water in the cathode layer 56.

The air in the oxygen reducing chamber 30 reaches the cathode layer 56 through the opening 52 of the case 51. Oxygen contained in the air combines with hydrogen ions in the cathode layer 56 as described above to become water. Therefore, if the current collectors 58 and 59 continue to be energized, the oxygen contained in the air in the oxygen reducing chamber 30 decreases. On the other hand, oxygen generated together with hydrogen ions in the anode layer 57 is discharged to the outside of the oxygen reduction chamber 30 through the opening 53 of the case 51. In this way, the oxygen concentration in the oxygen reducing chamber 30 is reduced. The function of reducing the oxygen concentration in the oxygen reducing chamber 30 is called an oxygen reducing function as a predetermined function. When the pull-out door 25 of the vegetable compartment 22 is opened and closed during the operation of the oxygen reducing function, oxygen enters the oxygen reducing chamber 30 in the vegetable chamber 22, and the oxygen concentration in the oxygen reducing chamber 30 increases. Therefore, it is desirable that the pull-out door 25 is not opened and closed during the operation of the oxygen reduction function.

The oxygen reducing device 50 may be provided in another storage chamber such as the chilled chamber 23.

A cooler room is provided behind the refrigerating space 20, and a refrigerating cooler 71 that generates cold air is housed in the cooler room. The cold air generated by the refrigerating cooler 71 is sent to the refrigerating space 20 by the fan 27 to cool the inside of the refrigerating space 20. A defrosting device 28 is provided in the vicinity of the refrigerating cooler 71 to melt and remove the frost adhering to the refrigerating cooler 71.

The freezing space 40 is a space cooled to a freezing temperature (for example, −18 ° C. or lower). An ice making chamber 41 is provided in the upper part of the freezing space 40. An ice storage container 45 is provided in the ice making chamber 41, and is configured to be pulled out integrally with a pull-out door 46 that closes the opening of the ice making chamber 41. A freezing chamber 42 is provided in the lower part of the freezing space 40. The opening of the freezing chamber 42 is closed by a pull-out door 43. A storage container 44 is held behind the pull-out door 43. The storage container 44 is configured to be pulled out integrally with the pull-out door 43. Another storage container may be provided above the storage container 44. A cooler chamber is provided behind the freezing space 40, and a freezing cooler 72 that generates cold air is housed in the cooler chamber. The cold air generated in the freezing cooler 72 is sent to the freezing space 40 by the fan 47 to cool the inside of the freezing space 40. In the vicinity of the freezing cooler 72, a defrosting device 48 for melting and removing the frost adhering to the freezing cooler 72 is provided.

The refrigerator 10 of the present embodiment does not have a clock, that is, a device for knowing the time, but has a timer 74 (see FIG. 3), that is, a device for knowing the time. The timer 74 can measure, for example, 24 hours. Here, the time is a point with a flow of time, and the time is a length from one point with a flow of time to another point with a flow of time. Therefore, the length from one time to another is the time. The time zone is from one time to another.

As shown in the block diagram of FIG. 3, the refrigerator 10 includes a control unit 70 that controls the refrigerator. The control unit 70 includes a refrigerating cooler 71, a refrigerating cooler 72, an oxygen reducing device 50, fans 27 and 47, defrosting devices 28 and 48, a door sensor 73 of a pull-out door 25 of the vegetable compartment 22, and a timer 74. Etc. are connected. The control unit 70 controls these connected devices and the like.

In the refrigerator 10 having the above structure, the control unit 70 controls so that the oxygen reducing function operates during a time period when the pull-out door 25 of the vegetable compartment 22 is not opened or closed. Therefore, the control unit 70 keeps monitoring the opening / closing of the pull-out door 25 of the vegetable compartment 22 for a certain period of time, and detects the opening / closing of the pull-out door 25 by the door sensor 73. In order to perform this monitoring, the control unit 70 sets a start time for starting monitoring (referred to as a monitoring start time) and an end time for ending monitoring (referred to as a monitoring end time). Then, when the door sensor 73 detects the opening / closing of the pull-out door 25 in the time zone from the monitoring start time to the monitoring end time (referred to as the monitoring time zone), the control unit 70 sets the monitoring start time and the monitoring end time to a predetermined time. Shift. Further, the control unit 70 operates the oxygen reduction function with reference to at least one of the monitoring start time and the monitoring end time. Therefore, if the pull-out door 25 opens and closes during the monitoring time zone and the monitoring start time and the monitoring end time deviate from each other by a predetermined time, the time at which the oxygen reduction function operates also deviates.

In this control, the time is recognized not by the clock but by the elapsed time from the start of measurement by the timer 74. The user of the refrigerator can recognize the time by a clock in the kitchen or the like, but the control unit 70 of the refrigerator 10 cannot recognize the time. There is a one-to-one correspondence between the time recognized by the refrigerator user and the elapsed time from the start of measurement by the timer 74 recognized by the control unit 70 of the refrigerator 10.

As examples of such control, control examples 1 to 4 are shown below. 4 to 7 show control examples 1 to 4.

(Control Example 1 of the present embodiment)
In control example 1 of FIG. 4, when the control unit 70 starts the operation of the oxygen reduction function at the monitoring start time and the opening / closing of the pull-out door 25 is detected during the monitoring time zone, the monitoring time zone after the next day. This is an example of changing.

In control example 1, when the control is started (S1), the control unit 70 sets the monitoring start time and the monitoring end time of the opening and closing of the pull-out door 25 by the door sensor 73. However, the monitoring start time and the monitoring end time are set by the elapsed time from the start of measurement by the timer 74. Assuming that the time from the start of measurement by the timer 74 to the start time of monitoring is the first time and the time from the start of measurement by the timer 74 to the end time of monitoring is the second time, the control unit 70 actually has the first time and the first time. Two hours will be set (S2). The length of the first and second hours is not limited, but the second hour is longer than the first hour. The length of the first hour may be zero. Assuming that the first time has elapsed from the start of measurement by the timer 74 and the second time has elapsed from the start of measurement by the timer 74, the first time has elapsed. The period from to the second hour corresponds to the monitoring time zone. The length of the monitoring time zone is not limited, but is, for example, about 1 hour.

Next, the control unit 70 starts measurement by the timer 74 (S3). Then, when the first time elapses (Yes in S4), the control unit 70 starts monitoring the opening and closing of the pull-out door 25. At the same time, the control unit 70 starts the operation of the oxygen reducing function (S5).

After that, when the door sensor 73 does not detect the opening / closing of the pull-out door 25 (No in S6) and the second time elapses (Yes in S7), the control unit 70 ends the monitoring of the opening / closing of the pull-out door 25. To do. At the same time, the control unit 70 ends the operation of the oxygen reducing function (S8). After that, when 24 hours have elapsed (when only 24 hours have been measured from the start of measurement by the timer 74) (Yes in S9), the control unit 70 resets the time measured by the timer 74 (S10). Then, the control unit 70 restarts the measurement by the timer 74 (S3). Since the timer 74 is reset after 24 hours have elapsed, the time when the timer 74 restarts the measurement is the same as the time when the timer 74 starts the measurement on the previous day. That is, the control unit 70 resets the timer 74 every 24 hours and restarts the measurement.

In this way, if the door sensor 73 does not detect the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses, the control unit 70 does not change between the first time and the second time. .. That is, if the door sensor 73 does not detect the opening / closing of the pull-out door 25 during the monitoring time zone, the control unit 70 does not change the monitoring start time and the monitoring end time.

On the other hand, when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses (Yes in S6), first, when the second time elapses (Yes in S11). , The control unit 70 ends the monitoring of the opening / closing of the pull-out door 25. At the same time, the control unit 70 ends the operation of the oxygen reduction function (S12). Then, when 24 hours have passed (Yes in S13), the control unit 70 resets the first time and the second time (S14). Specifically, a predetermined time is added to the previous first time and second time, respectively, so that the monitoring start time and the monitoring end time are delayed, and the new first time and second time are obtained. Then, the control unit 70 resets the time measured by the timer 74 (S15). After that, the control unit 70 restarts the measurement by the timer 74 (S3). Since the length of the monitoring time zone is not changed, the predetermined time added to the first time and the predetermined time added to the second time are the same length. Further, since the first time and the second time are reset and the timer 74 is reset after 24 hours have elapsed, the time when the measurement by the timer 74 is restarted is the same as the time when the measurement by the timer 74 is started on the previous day. is there. That is, the control unit 70 resets the timer 74 every 24 hours and restarts the measurement.

In this way, when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses, the control unit 70 changes the first time and the second time to make it longer. To do. That is, when the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone, the control unit 70 delays the monitoring start time and the monitoring end time.

Here, the length of the predetermined time added to the first time and the second time is not limited. The length of the predetermined time may be a preset length. In that case, it is desirable that the length of the predetermined time is shorter than the length of the monitoring time zone. Further, the predetermined time may be the time from the monitoring start time to the time when the opening / closing of the pull-out door 25 is detected.

In the above control example 1, in this way, the opening and closing of the pull-out door 25 continues to be monitored during the monitoring time zone, and the operation of the oxygen reducing function continues to be performed. If the opening / closing of the pull-out door 25 is not detected in the monitoring time zone, the monitoring time zone is not changed, and the operation of the oxygen reduction function is performed in the same monitoring time zone from the next day onward. On the other hand, if the opening / closing of the pull-out door 25 is detected during the monitoring time zone, the monitoring time zone after the next day is changed to a later time zone, and after the next day, the oxygen reduction function is operated during the changed monitoring time zone. Will be implemented. This is repeated every day, and every time the opening / closing of the pull-out door 25 is detected in the monitoring time zone, the monitoring time zone from the next day onward becomes a late time zone, and the execution time zone of the operation of the oxygen reduction function becomes late. As the change of the monitoring time zone is repeated several times, the monitoring time zone enters the time zone in which the user of the refrigerator 10 does not use the refrigerator due to the lifestyle pattern. Then, the opening / closing of the pull-out door 25 is not detected during the monitoring time zone, and the monitoring time zone is not delayed any more. In this way, the monitoring time zone is almost fixed, and the time zone when the oxygen reduction function operates is also almost fixed.

Various changes can be made to the above control example 1.

For example, the operation of the oxygen reducing function may be started when a predetermined time is measured after the first time has elapsed. However, the operation of the oxygen reducing function is started before the lapse of the second time. That is, the time when the operation of the oxygen reduction function is started is the time between the monitoring start time and the monitoring end time (however, the monitoring start time is included and the monitoring end time is not included).

Further, the operation of the oxygen reducing function may be terminated when the operation of the oxygen reducing function is measured for a certain period of time regardless of the elapse of the second time. Therefore, the operation of the oxygen reducing function may be terminated when a considerable time has elapsed after the lapse of the second time, or may be terminated before the lapse of the second time. Assuming that the length from the lapse of the first hour to the lapse of the second hour is 1 hour and the operation of the oxygen reducing function continues for 4 hours, the operation of the oxygen reducing function is performed when another 3 hours have passed after the lapse of the second time. It will end.

(Control Example 2 of the present embodiment)
In the control example 2 of FIG. 5, when the control unit 70 starts the operation of the oxygen reduction function after the monitoring end time and the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone, it is after that day ( In other words, this is an example of changing the monitoring time zone (including the current day).

In control example 2, when control is started (S1), the control unit 70 sets the first time and the second time as in the case of control example 1 (S2). Next, the control unit 70 starts measurement by the timer 74 (S3). Then, when the first time elapses (Yes in S4), the control unit 70 starts monitoring the opening and closing of the pull-out door 25.

After that, when the door sensor 73 does not detect the opening / closing of the pull-out door 25 (No in S5) and the second time elapses (Yes in S6), the control unit 70 ends the monitoring of the opening / closing of the pull-out door 25. After that, the operation of the oxygen reducing function is started immediately (S7). The oxygen-reducing function continuously operates for the oxygen-reducing time, which is a predetermined time. Specifically, when the timer 74 measures only the oxygen reduction time from the start of the operation of the oxygen reduction function (Yes in S8), the control unit 70 ends the operation of the oxygen reduction function (S9). After that, when 24 hours have passed (Yes in S10), the control unit 70 resets the time measured by the timer 74 (S11). Then, the control unit 70 restarts the measurement by the timer 74 (S3). Since the timer 74 is reset after 24 hours have elapsed, the time at which the measurement by the timer 74 is restarted is the same as the time when the measurement by the timer 74 is started on the previous day. That is, the control unit 70 resets the timer 74 every 24 hours and restarts the measurement.

In this way, if the door sensor 73 does not detect the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses, the control unit 70 does not change between the first time and the second time. .. That is, if the door sensor 73 does not detect the opening / closing of the pull-out door 25 during the monitoring time zone, the control unit 70 does not change the monitoring start time and the monitoring end time.

On the other hand, when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses (Yes in S5), the control unit 70 immediately restarts the first time and the second time. Set (S12). Specifically, a predetermined time is added to the previous first hour and second hour, respectively, to obtain a new first hour and second hour, respectively. Here, since the length of the monitoring time zone is not changed, the predetermined time added to the first time and the predetermined time added to the second time are the same length. After resetting the first time and the second time, the control unit 70 does not reset the timer 74. Therefore, the timer 74 continues to measure the elapsed time from the start of measurement of S3. Further, when the first time and the second time are reset, the control unit 70 ends the monitoring of the opening / closing of the pull-out door 25.

Then, when the reset first time elapses (Yes in S4), the control unit 70 starts monitoring the opening / closing of the pull-out door 25 again. However, if the predetermined time added to the first time is short, the first time has already passed after the reset when the first time is reset, or the first time is reset. It is possible that the time it takes place coincides with the lapse of the first hour after the reset. In those cases, the control unit 70 continues to monitor the opening and closing of the pull-out door 25 even after the resetting of the first time and the second time. After that, when the door sensor 73 does not detect the opening / closing of the pull-out door 25 (No in S5) and the reset second time elapses (Yes in S6), the control unit 70 opens / closes the pull-out door 25. End monitoring. After that, the control unit 70 performs control after S7 in the same manner as described above. However, when the door sensor 73 detects the opening / closing of the pull-out door 25 again between the time when the reset first time elapses and the time when the reset second time elapses (Yes in S5), the control unit 70 immediately performs the second operation. The first hour and the second hour are set again (S12).

In this way, when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses, the control unit 70 immediately changes between the first time and the second time. Lengthen. That is, when the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone, the control unit 70 immediately delays the monitoring start time and the monitoring end time.

Here, the length of the predetermined time added to the first time and the second time is not limited. The length of the predetermined time may be a preset length. In that case, it is desirable that the length of the predetermined time is shorter than the length of the monitoring time zone.

Further, the predetermined time may be the time from the initially set monitoring start time to the time when the opening / closing of the pull-out door 25 is detected. In that case, the first time after resetting is the time obtained by adding the time from the time measured by the timer 74 only for the first first time to the time when the opening / closing of the pull-out door 25 is detected to the first first time. Become. Therefore, the time when the opening / closing of the pull-out door 25 is detected coincides with the time when the first time elapses after the resetting. Therefore, when the door sensor 73 detects the opening / closing of the pull-out door 25, the control unit 70 continues to monitor the opening / closing of the pull-out door 25 until the second time elapses after the resetting.

In the above control example 2, in this way, the opening and closing of the pull-out door 25 is monitored during the monitoring time zone, and the oxygen reduction function is operated after the monitoring end time. If the opening / closing of the pull-out door 25 is not detected during the monitoring time zone, the monitoring time zone is not changed, and the oxygen reduction function is operated immediately after the initially set monitoring time zone on the day. On the other hand, when the opening / closing of the pull-out door 25 is detected during the monitoring time zone, the monitoring time zone after the current day is changed to a later time zone. Along with this, the time zone for the operation of the oxygen reduction function after that day will also be a late time zone. Then, every time the opening / closing of the pull-out door 25 is detected in the reset monitoring time zone, the monitoring time zone after the current day and the execution time zone of the operation of the oxygen reduction function are delayed. As the change of the monitoring time zone is repeated several times, the monitoring time zone enters the time zone in which the user of the refrigerator 10 does not use the refrigerator due to the lifestyle pattern. Then, the opening / closing of the pull-out door 25 is not detected during the monitoring time zone, and the monitoring time zone is not delayed any more. In this way, the monitoring time zone is substantially fixed, and the time zone in which the oxygen reduction function operates after the monitoring time zone is also substantially fixed.

Various changes can be made to the above control example 2.

For example, the operation of the oxygen reducing function may be started not immediately after the lapse of the second time but when the timer 74 further measures a predetermined time from the lapse of the second time, or may be started when the second time has elapsed. You may.

(Control Example 3 of the present embodiment)
In control example 3 of FIG. 6, when the control unit 70 starts the operation of the oxygen reducing function after the monitoring end time and the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone, the next day or later. This is an example of changing the monitoring time zone.

In the control example 3, when the control is started (S1), the control unit 70 sets the first time and the second time as in the case of the control example 1 (S2). Next, the control unit 70 starts measurement by the timer 74 (S3). Then, when the first time elapses (Yes in S4), the control unit 70 starts monitoring the opening and closing of the pull-out door 25.

After that, when the door sensor 73 does not detect the opening / closing of the pull-out door 25 (No in S5) and the second time elapses (Yes in S6), the control unit 70 ends the monitoring of the opening / closing of the pull-out door 25. After that, the operation of the oxygen reducing function is started immediately (S7). The oxygen-reducing function continuously operates for the oxygen-reducing time, which is a predetermined time. Specifically, when the timer 74 measures only the oxygen reduction time from the start of the operation of the oxygen reduction function (Yes in S8), the control unit 70 ends the operation of the oxygen reduction function (S9). After that, when 24 hours have passed (Yes in S10), the control unit 70 resets the time measured by the timer 74 (S11). Then, the control unit 70 restarts the measurement by the timer 74 (S3). Since the timer 74 is reset after 24 hours have elapsed, the time when the timer 74 restarts the measurement is the same as the time when the timer 74 starts the measurement on the previous day. That is, the control unit 70 resets the timer 74 every 24 hours and restarts the measurement.

In this way, if the door sensor 73 does not detect the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses, the control unit 70 does not change between the first time and the second time. .. That is, if the door sensor 73 does not detect the opening / closing of the pull-out door 25 during the monitoring time zone, the control unit 70 does not change the monitoring start time and the monitoring end time.

On the other hand, even when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses (Yes in S5), the control unit 70 does not detect it. The same steps S12 to S16 as S6 to S10 are carried out. Then, when 24 hours have passed (Yes in S16), the control unit 70 resets the first time and the second time (S17). Specifically, a predetermined time is added to the previous first time and second time, respectively, so that the monitoring start time and the monitoring end time are delayed, and the new first time and second time are obtained. Here, since the length of the monitoring time zone is not changed, the predetermined time added to the first time and the predetermined time added to the second time are the same length. Then, the control unit 70 resets the timer 74 (S18). Then, the control unit 70 restarts the measurement by the timer 74 (S3). Since the resetting of the first time and the second time and the reset of the timer 74 are performed after 24 hours have elapsed, the time when the measurement by the timer 74 is restarted is the same as the time when the measurement by the timer 74 is started on the previous day. is there. That is, the control unit 70 resets the timer 74 every 24 hours and restarts the measurement.

In this way, when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses, the control unit 70 sets the first time and the second time after the next day. And lengthen it. That is, when the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone, the control unit 70 delays the monitoring start time and the monitoring end time from the next day onward.

Here, the length of the predetermined time added to the first time and the second time is not limited. The length of the predetermined time may be a preset length. In that case, it is desirable that the length of the predetermined time is shorter than the length of the monitoring time zone. Further, the predetermined time may be the time from the monitoring start time to the time when the opening / closing of the pull-out door 25 is detected.

In the above control example 3, in this way, the opening and closing of the pull-out door 25 is monitored during the monitoring time zone, and the oxygen reduction function is operated after the monitoring end time. If the opening / closing of the pull-out door 25 is not detected during the monitoring time zone, the monitoring time zone is not changed, and the oxygen reduction function is operated immediately after the initially set monitoring time zone on the day. On the other hand, when the opening / closing of the pull-out door 25 is detected during the monitoring time zone, the monitoring time zone from the next day onward is changed to a later time zone. Along with this, the time zone for the operation of the oxygen reduction function from the next day onward will also be a late time zone. In this way, each time the opening / closing of the pull-out door 25 is detected in the monitoring time zone, the monitoring time zone from the next day onward and the execution time zone of the operation of the oxygen reducing function are delayed. As the change of the monitoring time zone is repeated several times, the monitoring time zone enters the time zone in which the user of the refrigerator 10 does not use the refrigerator due to the lifestyle pattern. Then, the opening / closing of the pull-out door 25 is not detected during the monitoring time zone, and the monitoring time zone is not delayed any more. In this way, the monitoring time zone is substantially fixed, and the time zone in which the oxygen reduction function operates after the monitoring time zone is also substantially fixed.

Various changes can be made to the above control example 3.

For example, the operation of the oxygen reducing function may be started not immediately after the lapse of the second time but when the timer 74 further measures a predetermined time from the lapse of the second time, or may be started when the second time has elapsed. Is also good.

(Control Example 4 of the present embodiment)
In the control example 4 of FIG. 7, when the control unit 70 starts the operation of the oxygen reduction function after the monitoring end time and the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone, it is after that day ( In other words, this is an example of changing the monitoring time zone (including the current day). In control example 4, if the control unit 70 continues to monitor the opening / closing of the pull-out door 25 even during the operation of the oxygen reduction function after the monitoring end time, and detects the opening / closing of the pull-out door 25, the control unit 70 Change the monitoring time zone after the next day.

In the control example 4, when the control is started (S1), the control unit 70 sets the first time and the second time (S2) as in the case of the control example 1. Next, the control unit 70 starts measurement by the timer 74 (S3). Then, when the first time elapses (Yes in S4), the control unit 70 starts monitoring the opening and closing of the pull-out door 25.

After that, when the door sensor 73 does not detect the opening / closing of the pull-out door 25 (No in S5) and the second time elapses (Yes in S6), the control unit 70 ends the monitoring of the opening / closing of the pull-out door 25. Then, the operation of the oxygen reducing function is started immediately after that (S7).

On the other hand, when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses (Yes in S5), the control unit 70 immediately sets the second door as in the case of control example 2. The one hour and the second hour are reset (S13). The method of resetting and the steps from the resetting to the final second time elapse are as described in Control Example 2. After that, when the finally set second time elapses (Yes in S6), the control unit 70 ends the monitoring of the opening and closing of the pull-out door 25, and immediately starts the operation of the oxygen reducing function (S7). In this way, when the door sensor 73 detects the opening / closing of the pull-out door 25 from the time when the first time elapses to the time when the second time elapses, the control unit 70 immediately changes between the first time and the second time. Lengthen. That is, when the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone, the control unit 70 delays the monitoring start time and the monitoring end time after that day.

In control example 4, the control unit 70 starts monitoring the opening / closing of the pull-out door 25 again at the same time as starting the operation of the oxygen reducing function, and continues to monitor the opening / closing of the pull-out door 25 during the operation of the oxygen reducing function. The oxygen-reducing function continuously operates for the oxygen-reducing time, which is a predetermined time. The timer 74 measures the oxygen reduction time.

When the door sensor 73 does not detect the opening / closing of the pull-out door 25 (No in S8) and the oxygen reduction time elapses (when the timer 74 measures only the oxygen reduction time from the start of the operation of the oxygen reduction function) ( Yes) in S9, the control unit 70 ends the operation of the oxygen reduction function (S10). At the same time, the control unit 70 also finishes monitoring the opening and closing of the pull-out door 25. After that, when 24 hours have passed (Yes in S11), the control unit 70 resets the time measured by the timer 74 (S12). Then, the control unit 70 restarts the measurement by the timer 74 (S3). Since the timer 74 is reset after 24 hours have elapsed, the time when the timer 74 restarts the measurement is the same as the time when the timer 74 starts the measurement on the previous day. That is, the control unit 70 resets the timer 74 every 24 hours and restarts the measurement.

As described above, when the door sensor 73 does not detect the opening / closing of the pull-out door 25 during the operation of the oxygen reduction function, the control unit 70 does not change the first time and the second time. That is, in this case, the control unit 70 does not change the monitoring start time and the monitoring end time.

On the other hand, when the door sensor 73 detects the opening / closing of the pull-out door 25 during the operation of the oxygen reduction function (Yes in S8), the control unit 70 continues the operation of the oxygen reduction function until before the lapse of the oxygen reduction time. Then, when the oxygen reduction time elapses (Yes in S14), the control unit 70 ends the operation of the oxygen reduction function (S15), and at the same time, the monitoring of the opening / closing of the pull-out door 25 also ends. After that, when 24 hours have passed (Yes in S16), the control unit 70 resets the first time and the second time (S17). Specifically, a predetermined time is added to the previous first time and second time, respectively, so that the monitoring start time and the monitoring end time are delayed, and the new first time and second time are obtained. Since the length of the monitoring time zone is not changed, the predetermined time added to the first time and the predetermined time added to the second time are the same length. Further, the control unit 70 resets the timer 74 (S18). Then, the control unit 70 restarts the measurement by the timer 74 (S3). Since the resetting of the first time and the second time and the reset of the timer 74 are performed after 24 hours have elapsed, the time when the measurement by the timer 74 is restarted is the same as the time when the measurement by the timer 74 is started on the previous day. is there. That is, the control unit 70 resets the timer 74 every 24 hours and restarts the measurement.

In this way, when the door sensor 73 detects the opening / closing of the pull-out door 25 during the operation of the oxygen reduction function, the control unit 70 changes the first time and the second time to lengthen the time, and the next day or later. Delay the monitoring start time and monitoring end time.

In the above control example 4, the operation of the oxygen reduction function is started after the monitoring end time as in the control example 2. However, unlike Control Example 2, the control unit 70 monitors the opening and closing of the pull-out door 25 even while the oxygen reduction function is operating, and if it detects the opening and closing of the pull-out door 25, it changes the monitoring time zone from the next day onward. It is a late time zone. Along with this, the time zone for the operation of the oxygen reduction function from the next day onward will also be a late time zone. This is repeated every day, and every time the opening and closing of the pull-out door 25 is detected during the operation of the oxygen reduction function after the monitoring time, the monitoring time and the operation time of the oxygen reduction function after the next day become slower. .. As the change of the monitoring time zone is repeated several times, the monitoring time zone enters the time zone in which the user of the refrigerator 10 does not use the refrigerator due to the lifestyle pattern. Then, the opening / closing of the pull-out door 25 is not detected during the monitoring time zone, and the monitoring time zone is not delayed any more. In this way, the monitoring time zone is almost fixed, and the time zone when the oxygen reduction function operates is also almost fixed.

Various changes can be made to the above control example 4.

For example, the operation of the oxygen reducing function may be started not immediately after the lapse of the second time, but when the timer 74 further measures a predetermined time from the lapse of the second time, or is started when the second time has elapsed. Is also good.

Further, when the operation of the oxygen reducing function is performed immediately after the lapse of the second time, the control unit 70 does not interrupt the monitoring of the opening and closing of the pull-out door 25 after the lapse of the second time, and the oxygen reducing function is performed. It may be continuously carried out until the operation.

Further, the timer for measuring the deoxygenation time may be different from the timer 74 for measuring the first time and the second time.

(Effect of this embodiment)
In any of the above control examples 1 to 4, finally, the monitoring time zone and the operating time zone of the oxygen reducing function are the time zones in which the user of the refrigerator 10 does not use the refrigerator due to the lifestyle pattern. Therefore, the possibility that the pull-out door 25 is opened and closed during the operation of the oxygen reduction function is reduced. Further, since it is not necessary to measure the time when the door is opened and closed with a clock and record the time, the software for controlling the refrigerator 10 is not complicated, and problems caused by it are unlikely to occur.

Further, if the length of the predetermined time added to the first time and the second time when the door sensor 73 detects the opening / closing of the pull-out door 25 during the monitoring time zone is shorter than the length of the monitoring time zone, the detection is performed. The monitoring time zone will shift little by little each time. Therefore, the control unit 70 can surely find the optimum time zone as the monitoring time zone, and the time zone can be set as the actual monitoring time zone.

Further, in the control that starts the operation of the oxygen reducing function in the monitoring time zone as in the control example 1, the time zone in which the pull-out door 25 is not actually opened and closed becomes the monitoring time zone, and the monitoring time zone is set. Since the operation of the oxygen reducing function is started, it is possible to prevent the pull-out door 25 from being opened and closed during the operation of the oxygen reducing function.

Further, based on a general behavior pattern, the refrigerator user does not open and close the pull-out door 25 of the vegetable compartment 22 for a long time, and if the pull-out door 25 is not opened and closed for a certain period of time (for example, 1 hour), it is thereafter. There is a high possibility that the pull-out door 25 will not be opened or closed for a certain period of time (for example, 4 hours). Control examples 2 to 4 are controls utilizing this, and in these controls, the operation of the oxygen reducing function is started after it is confirmed that the pull-out door 25 is not opened and closed during the monitoring time zone. It is unlikely that the pull-out door 25 will be opened or closed even during operation.

(Example of modification of this embodiment)
The predetermined function that operates based on at least one of the monitoring start time and the monitoring end time may be a function other than the oxygen reduction function. Other predetermined functions include, for example, a power saving function and a defrosting function. The power saving function is a function of suppressing the power consumption of the refrigerator 10, for example, a function of raising the set temperature of the refrigerating cooler 71 higher than the set temperature in the normal state (when the power saving function is not operating). The defrosting function is a function of removing frost adhering to the refrigerating cooler 71 by heating it with a heater. Since these functions are functions that may raise the temperature in the refrigerating space 20, if the door of the refrigerating space 20 is opened or closed during the operation of these functions, the refrigerating space is affected by the influence of normal temperature air. The temperature inside 20 may become too high. However, if these functions are operated during the time period when the door of the refrigerating space 20 is not opened and closed by the method of the above embodiment, it is possible to prevent the temperature in the refrigerating space 20 from becoming too high.

Further, the door provided with the door open / close detection unit may be any door that is not desirable to open / close during the operation of the predetermined function. For example, when the predetermined function is a function of raising the set temperature of the refrigerating cooler 72 higher than the set temperature at the normal time or a function of defrosting the refrigerating cooler 72, the refrigerating space is operated during the operation of the predetermined function. The temperature of 40 can be high. Therefore, if the pull-out door 43 of the freezing chamber 42 or the pull-out door 46 of the ice making chamber 41 is opened or closed during the operation of these predetermined functions, the temperature of the freezing space 40 may become too high. Therefore, the door open / close detection unit is provided in the pull-out door 43 of the freezing chamber 42 and the pull-out door 46 of the ice making chamber 41, and the control unit 70 operates so that these functions operate during the time when these doors are not opened / closed. Is desirable to control.

Further, in each of the above control examples, when the door open / close detection unit does not detect the opening / closing of the refrigerator door during the monitoring time zone continuously for a predetermined number of preset times (that is, the door opening / closing during the monitoring time zone). The control unit 70 may fix the monitoring start time and the monitoring end time for a predetermined number of days (for example, 5 to 7 days) in which is not detected. In that case, even if the open / close detection unit detects the opening / closing of the door after the monitoring start time and the monitoring end time are fixed, the monitoring start time and the monitoring end time are not shifted by a predetermined time. When this control is implemented, even if the user of the refrigerator 10 accidentally opens the door of the refrigerator 10 at a time when the refrigerator is not normally used, there is no possibility that the monitoring start time and the monitoring end time will be affected. ..

The above embodiments are examples, and the scope of the invention is not limited thereto. The above embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. The above embodiments and modifications thereof are included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Refrigerator, 12 ... Refrigerator body, 20 ... Refrigerator space, 21 ... Refrigerator room, 22 ... Vegetable room, 23 ... Chilled room, 24 ... Refrigerator room door, 25 ... Pull-out door, 26 ... Vegetable container, 27 ... Fan, 28 ... Defrosting device, 30 ... Oxygen-reducing chamber, 31 ... Holder, 32 ... Storage container, 40 ... Refrigerator space, 41 ... Ice making room, 42 ... Freezer room, 43 ... Pull-out door, 44 ... Storage container, 45 ... Ice storage Container, 46 ... Pull-out door, 47 ... Fan, 48 ... Defroster, 50 ... Oxidizer, 51 ... Case, 52 ... Opening, 53 ... Opening, 55 ... Polymer electrolyte membrane, 56 ... Cathode layer, 57 ... anode layer, 58 ... minus side current collector, 59 ... plus side current collector, 61 ... water repellent layer, 62 ... water repellent layer, 63 ... water supply sheet, 65 ... fixing member, 66 ... fixing member, 70 ... Control unit, 71 ... Refrigerator cooler, 72 ... Refrigerator cooler, 73 ... Door sensor, 74 ... Timer

Claims (5)

It includes a door that opens and closes the opening of the storage chamber, a door open / close detection unit that detects the opening / closing of the door, a predetermined function, and a control unit that controls the predetermined function.
The control unit sets a start time at which the door open / close detection unit starts detecting the opening / closing of the door and an end time at which the detection of the opening / closing of the door ends, and at least one of the start time and the end time. or on the basis of one time by operating the predetermined function, when detecting the opening and closing of the door between the said start time to the end time, and shifted the start time and the end time and the predetermined time,
A refrigerator whose predetermined function is an oxygen reducing function, a power saving function or a defrosting function . The refrigerator according to claim 1, wherein the predetermined time is equal to or less than the time from the start time to the end time. The refrigerator according to claim 1 or 2, wherein the control unit starts the operation of the predetermined function between the start time and the end time. The refrigerator according to claim 1 or 2, wherein the control unit starts the operation of the predetermined function after the end time. When the door open / close detection unit does not detect the opening / closing of the door for a predetermined number of times continuously between the start time and the end time, the control unit starts from the next start time to the end time. The refrigerator according to any one of claims 1 to 4, wherein the door opening / closing detection unit does not shift the start time and the end time by a predetermined time even if the door opening / closing detection unit detects the opening / closing of the door.

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