WO2020144847A1 - 冷蔵庫 - Google Patents

冷蔵庫 Download PDF

Info

Publication number
WO2020144847A1
WO2020144847A1 PCT/JP2019/000684 JP2019000684W WO2020144847A1 WO 2020144847 A1 WO2020144847 A1 WO 2020144847A1 JP 2019000684 W JP2019000684 W JP 2019000684W WO 2020144847 A1 WO2020144847 A1 WO 2020144847A1
Authority
WO
WIPO (PCT)
Prior art keywords
time
control
unit
opening
temperature
Prior art date
Application number
PCT/JP2019/000684
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
牧人 冨村
康成 大和
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2019/000684 priority Critical patent/WO2020144847A1/ja
Priority to JP2020565135A priority patent/JP7038856B2/ja
Priority to CN201980076221.8A priority patent/CN113227685B/zh
Priority to SG11202104529VA priority patent/SG11202104529VA/en
Priority to AU2019420355A priority patent/AU2019420355B2/en
Priority to TW108145965A priority patent/TWI717938B/zh
Publication of WO2020144847A1 publication Critical patent/WO2020144847A1/ja

Links

Images

Classifications

    • 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
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25D23/00—General constructional features

Definitions

  • the present invention relates to a refrigerator having a door that can be opened and closed, a storage room that stores stored goods and whose temperature is adjusted, and a door opening/closing detection unit.
  • the number of times the doors of the ice making chamber doors stored for 7 days were added every hour, and the ice making capacity was switched according to the number of times the doors were opened per unit time. For example, when the number of times the door is opened is less than 5 times per hour, which is a time period in which the door is open, it is determined that the amount of ice used is small, and the refrigerator is operated with a low ice making capacity.
  • the refrigerator is operated with the medium ice-making capacity in a time period in which the number of times of opening the door is slightly high, such as 5 times or more and less than 15 times per hour.
  • the refrigerator is operated with a high ice-making capacity, for example, 15 times or more per hour, which is a time period when the number of times of opening the door is large.
  • a high ice-making capacity for example, 15 times or more per hour, which is a time period when the number of times of opening the door is large.
  • wasteful cooling is suppressed by operating the refrigerator according to the usage situation of the user (for example, refer to Patent Document 1).
  • a threshold value used for determining whether the frequency of use is high or low is set according to the number of times the door is opened. For this reason, if there is a difference in the absolute value of the number of times of opening the door in each user's daily life, the accuracy may not be as intended. For example, it is assumed that the user A opens the door at most about 5 times per unit time. On the other hand, it is assumed that the user B reaches the maximum number of times of opening the door about 15 times per unit time.
  • the threshold value is set such that the frequency of use is high when the number of times of opening the door is 10 or more, it may be determined that the frequency of use is always low for user A throughout the day. Further, when the usage frequency changes every unit time, the operating state changes every moment, which may deteriorate the energy consumption performance.
  • the present invention is intended to solve the above problems, and an object of the present invention is to obtain a refrigerator in which an arbitrary time period in which a user is less frequently used can be predicted according to the living situation of the user.
  • the refrigerator according to the present invention has a door that can be opened and closed, a storage room that cools and stores stored items, a door opening and closing detection unit that detects opening and closing of the door of the storage room, and the door opening and closing detection unit detects A storage unit for storing the number of times of opening and closing the door for each arbitrary unit time for an arbitrary number of days, and a control unit, wherein the control unit opens and closes the door for each arbitrary unit time stored in the storage unit.
  • an average value between arbitrary days which is the average of the number of times of opening and closing the door in each unit time during the arbitrary number of days, is calculated, and each unit time in the average value between the arbitrary days is used as a starting point until the set time Of the number of times of opening and closing of the door is calculated for each unit time, and the latest total value is calculated, and the number of times of opening and closing of the door is set for each unit time after a set time from each unit time in the average value between the arbitrary days as a starting point.
  • the summed immediately following total value is calculated, and based on one or both of the most recent total value and the immediately following total value, a section having a small opening/closing frequency of the storage chamber divided by the set time is determined.
  • the control unit determines, based on one or both of the most recent value and the immediately following total value, a section in which the opening/closing frequency of the storage chamber divided by the set time is small. Therefore, an arbitrary time period in which the frequency of use by the user is low can be predicted according to the living situation of the user.
  • FIG. 1 It is a perspective view which shows the refrigerator which concerns on Embodiment 1 of this invention. It is a front view which shows the refrigerator which concerns on Embodiment 1 of this invention. It is a functional block diagram which shows the refrigerator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the control part which concerns on Embodiment 1 of this invention. 3 is a flowchart showing control according to the first embodiment of the present invention. It is explanatory drawing which shows the control result 1 which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the control result 2 which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the control result 3 which concerns on Embodiment 1 of this invention.
  • FIG. 1 is a perspective view showing a refrigerator 1 according to Embodiment 1 of the present invention.
  • FIG. 2 is a front view showing the refrigerator 1 according to Embodiment 1 of the present invention.
  • the refrigerator 1 includes a refrigerating room 121, an ice making room 122, a freezing room 123, a freezing room 124, and a vegetable room 125.
  • the freezing compartment 123 is switched to a temperature range of -18 degrees, which is a freezing temperature zone, or -7 degrees, which is soft freezing.
  • the refrigerating room 121, the ice making room 122, the freezing room 123, the freezing room 124, and the vegetable room 125 are storage rooms 12 that have openable and closable doors and cool and store foods and the like that are stored items.
  • the refrigerator 1 may include at least one or more storage rooms 12. Moreover, when the refrigerator 1 has a plurality of storage chambers 12, the plurality of storage chambers 12 may be arranged in any manner.
  • the refrigerator 1 includes a door switch 131 that is turned on and off by opening and closing the doors of the refrigerating room 121, the ice making room 122, and the freezing room 123.
  • the refrigerator 1 includes a door switch 132 that is turned on or off by opening and closing the door of the freezer compartment 124.
  • the refrigerator 1 includes a door switch 133 that is turned on or off by opening and closing the door of the vegetable compartment 125.
  • the door switch 131, the door switch 132, and the door switch 133 configure a door opening/closing detection unit 13 that detects opening/closing of the door of the storage chamber 12.
  • FIG. 3 is a functional block diagram showing the refrigerator 1 according to the first embodiment of the present invention.
  • the refrigerator 1 includes a door opening/closing detection unit 13 that detects opening/closing of the door of the storage room 12.
  • the refrigerator 1 includes a storage unit 111 that receives a door opening signal transmitted from the door opening/closing detection unit 13 and stores the number of times of opening/closing of the door for each arbitrary unit time for an arbitrary number of days.
  • the refrigerator 1 includes a control unit 11.
  • the control unit 11 includes a storage unit 111.
  • the refrigerator 1 includes a cooler 14 that cools the insides of the plurality of storage chambers 12.
  • the refrigerator 1 includes a defrost heater 15 that defrosts the cooler 14.
  • FIG. 4 is a block diagram showing the control unit 11 according to the first embodiment of the present invention.
  • the control unit 11 controls the drive device of the cooler 14, the defrost heater 15, and the like.
  • the control unit 11 is a processing circuit having a microcomputer including a CPU, memories such as ROM and RAM, and input/output devices such as I/O ports.
  • the storage unit 111 is composed of a RAM.
  • the control unit 11 is an average of the number of times of opening and closing the door per hour, which is an arbitrary number of days, from the number of times of opening and closing the door, which is an arbitrary unit time, stored in the storage unit 111.
  • the 7-day average value which is the average value between arbitrary days, is calculated.
  • the control unit 11 calculates the latest total value obtained by summing the number of times of opening and closing the door for each hour up to 6 hours before the set time, starting from each 1 hour in the 7-day average value.
  • the control unit 11 calculates the total value immediately after summing the number of times of opening and closing the door up to 6 hours after the start of each hour in the average value for 7 days for each unit time.
  • the control unit 11 determines a section in which the opening/closing frequency of the storage chamber 12 divided into 6 hours is small, based on one or both of the latest total value and the immediately following total value.
  • FIG. 5 is a flowchart showing the control according to the first embodiment of the present invention.
  • the control unit 11 stores the number of times of opening and closing the door per unit time in the storage unit 111 in step S1.
  • the control unit 11 divides a day into 0 blocks to 23 blocks for a total of 24 blocks every hour, and stores the number of times the door is opened in each block in the storage unit 111 for each door.
  • Step S1 is executed until the data for 7 days is stored. When it exceeds 7 days, the control unit 11 overwrites the oldest data in order and stores it in the storage unit 111.
  • the control unit 11 repeats the storage process of step S1 to always store the latest number of door opening/closing times for each storage room for 7 days in the storage unit 111.
  • the unit time may be set in units of 30 minutes. Further, when a rougher door opening/closing frequency is analyzed in consideration of the memory capacity of the storage unit 111, the unit time may be set in units of 8 hours.
  • the control unit 11 calculates an average value of the number of times of opening and closing the door every 7 hours for 7 days in step S2. ..
  • the control unit 11 stores the number of times the door has been opened for 24 hours from 0 block to 23 blocks per day with the unit time being 1 hour.
  • the control unit 11 finishes storing the number of times of opening the door to the 23 blocks in the storage unit 111, and at the timing of moving the storage location to the 0th block of the next day, the door opening of each storage chamber 12 is performed for each block. Sum the number of times.
  • the 0th block of the refrigerating room 121, the 0th block of the ice making room 122, the 0th block of the freezing room 123, the 0th block of the freezing room 124, and the 0th block of the vegetable room 125 Sum the number of doors opened. The same calculation is performed from the remaining 1st block to the 23rd block.
  • control unit 11 multiplies the 7-day average value of 0 blocks to 23 blocks, which has been calculated in the past, for 7 days by 6, and adds the number of times the door has been opened for the latest 1 day calculated for each block. , And the addition result is divided by 7.
  • the control unit 11 stores the calculation result in the storage unit 111 as the latest 7-day average value.
  • the initial value of the 7-day average value is set in advance in the storage unit 111 in preparation for the timing of shifting from the first 23 blocks after turning on the refrigerator 1 to 0 block on the next day. Basically, it is preferable to set all the initial values to 0. However, for example, the initial value of the 7-day average value may be set with reference to general household opening/closing frequency data rather than market data.
  • the initial value may be set to a value such as the number of switching operations that cannot occur in actual use, for example, 10,000 times. However, if the initial value greatly deviates from the actual use purpose, extra time is required until the actual use frequency can be estimated, which is not preferable.
  • step S3 the control unit 11 calculates the latest total value which is the total value of the number of times of opening the door 6 hours before the set time, that is, 6 blocks before, starting from each block of the average value for 7 days.
  • the set time is set to 6 hours in order to carry out the control for a maximum of 6 hours which will be described later in that time zone after estimating the time zone in which the usage frequency is low.
  • FIG. 6 is an explanatory diagram showing a control result 1 according to the first embodiment of the present invention.
  • FIG. 7 is an explanatory diagram showing a control result 2 according to the first embodiment of the present invention.
  • FIG. 8 is an explanatory diagram showing the control result 3 according to the first embodiment of the present invention.
  • the horizontal axis represents the unit time from 0 block to 23 blocks
  • the vertical axis represents the number of times of door opening of the 7-day average value in each unit time.
  • the number of times of opening the 0th block as the starting point is 0 times
  • the number of times of opening the 23rd block one block before is 0 times
  • the 22nd block before 2nd block is 22 times.
  • No. of doors opened 0 times No. of doors opened 21st block before 3 blocks
  • the total value of 6 blocks is 3 times.
  • the same calculation is performed for each of the remaining 1 to 23 blocks, and the latest 6-hour total value is calculated for all 24 blocks.
  • step S4 the control unit 11 compares the calculation results of the latest total value and determines whether or not the minimum value of the number of times of opening and closing the door is one. When the minimum value of the number of times of opening and closing the door is one, the process proceeds to step S5. When the minimum value of the number of times of opening and closing the door is plural, the process proceeds to step S6.
  • step S5 the control unit 11 sets the interval of 6 hours before the set time of the block having the minimum number of times of opening and closing the door, that is, from the block 6 blocks before to the block 1 block before the refrigerator 1 It is judged that it is a time when the use frequency of is low. That is, as shown in FIG. 6, when the latest 6-hour total value of the third block is one as the minimum value, the control unit 11 determines the sixth block from the 21st block to the 3rd block. It is determined that 6 hours until the second block, which is the immediately preceding block, is a section time zone in which the refrigerator 1 is used less frequently.
  • the control unit 11 uses the start time of the third block, which is one first unit time when the latest total value of the minimum values is calculated, as a reference for the three blocks. It is determined that the interval between the opening time of 6 hours and the starting time of the third block is the interval in which the opening/closing frequency of the storage chamber 12 is low.
  • step S6 the control unit 11 calculates a total value immediately after, which is the total value up to 6 blocks after 6 hours, which is an arbitrary time, starting from each block of the average value for 7 days. Specifically, as shown in FIG. 7, the calculation of the 6-hour total value immediately after the 0th block is performed by setting the number of times of opening the 0th block as the starting point to 0 times and opening the 1st block after 1 block. The number of times of opening is 0, the number of times of opening of the second block after 2 blocks is 0, the number of times of opening of the third block after 3 blocks is 0, and the number of times of opening of the fourth block after 4 blocks is 3 times.
  • control unit 11 After 5 blocks, the total number of times of opening the door of the 5th block 8 times, 6 blocks in total, is 11 times.
  • the control unit 11 performs the same calculation for each of the remaining 1 block to 23 blocks, and calculates the immediately following 6-hour total value for all 24 blocks.
  • step S7 the control unit 11 determines whether or not the maximum value of the 6-hour total value immediately after that block is one among the plurality of blocks having the minimum 6-hour total value.
  • the process proceeds to step S5.
  • the process proceeds to step S8.
  • step S5 transferred from step S7 the control unit 11 selects, from among the plurality of blocks having the smallest latest 6-hour total value, the block whose maximum 6-hour total value immediately after that block is one, It is determined that the interval up to 6 hours before the arbitrary time, that is, the block 6 blocks before to the block 1 block before is the time when the frequency of use of the refrigerator 1 is small. That is, in the example of FIG. 7, the latest 6-hour total value from 1 block to 3 blocks is the minimum of 0 times, and the 6-hour total value immediately after the 3rd block is the maximum of 22 times.
  • the control unit 11 is one second unit time for which the immediately following total value of the maximum values is calculated when there are a plurality of minimum values of the latest total values and the maximum value of the immediately following total values is one.
  • the interval between the start time of the third block and the start time of the third block is 6 hours before the opening and closing frequency of the storage chamber 12 is small.
  • step S8 if there are a plurality of maximum 6-hour total values immediately after the block among the plurality of blocks having the minimum latest 6-hour total values, the control unit 11 determines each day.
  • the section time zone in which the frequency of use of the refrigerator 1 is low is determined, starting from the earliest unit time with the smallest number.
  • the unit time in which the latest 6-hour total value is the minimum value and the immediately-after 6-hour total value is the maximum value is the 6th block and the 18th block.
  • the section time zone in which the frequency of use of the refrigerator 1 is low is determined starting from the sixth block with the smallest number in each day.
  • the control unit 11 is the earliest immediately after the maximum value with the smallest number among the immediately following total values of the plurality of maximum values.
  • the opening/closing frequency of the storage chamber 12 between 6 hours before the start time of the sixth block and the start time of the sixth block Is a small section.
  • FIG. 6 exemplifies a case where there is only one unit time in which the minimum value of the latest 6-hour total value is one.
  • FIG. 7 when there are multiple minimum values of the latest 6-hour total value and the maximum value of the next 6-hour total value is only one, the unit time is expected to have the highest occurrence probability. Is given as an example.
  • FIG. 8 exemplifies a case in which there are a plurality of minimum values of the latest 6-hour total value and a plurality of unit times in which the maximum value of the immediate 6-hour total value is a plurality of points.
  • the most recent use of the refrigerator 1 is the least used until that time, and the immediately following total value focuses on the time when the refrigerator 1 is used most to predict the boundary of the use frequency. Therefore, it is possible to accurately determine the time zone in which the frequency of use by the user is low. In addition, even if there is a difference in the activity time zone in one day depending on the household used, the frequency of use is predicted based on the amount of change in the number of times of use. Therefore, the living situation of the user can be inferred without any problem. Specifically, the user A wakes up at 7:00 am and starts using the refrigerator 1 and goes to bed at 22:00 pm, and the user B wakes up at 21:00 pm and starts using the refrigerator 1.
  • the frequency of use of the refrigerator 1 is determined by paying attention to the amount of change in the number of times the door is opened and closed, so that, for example, in the case of the user A, the time zone in which the frequency of use is low is from 24:00 pm to 6:00 a.m.
  • the time zone of low use frequency is from 2:00 pm to 8:00 pm.
  • step S9 the control unit 11 performs temperature averaging control, which will be described later, as special control during the determined time of low usage frequency.
  • FIG. 9 is an explanatory diagram showing special temperature control according to the first embodiment of the present invention.
  • the special temperature control is an example of control performed in a living time zone other than the time zone in which the frequency of use is determined to be low.
  • the special control is control in which the special temperature control is not started in a time zone of low usage frequency.
  • the special temperature control uses a temperature control unit (not shown) that adjusts the temperature of each storage chamber 12 to a temperature higher than the normal temperature control such as ⁇ 7° C. within a fixed time such as 100 minutes.
  • the temperature is adjusted to the first set temperature such as high -3 degrees.
  • the special temperature control the temperature is adjusted to a second set temperature such as -11 degrees which is lower than the normal temperature control such as -7 degrees within a fixed time such as 120 minutes.
  • the special temperature control changes the temperature in the storage chamber 12 to two different temperatures over a plurality of unit times. By such special temperature control, the food is frozen after being supercooled.
  • the normal temperature, the first set temperature, and the second set temperature are in the freezing temperature zone of 0 degrees or less.
  • the first set temperature is higher than a normal set temperature such as -7 degrees for soft freezing and is set between -5 degrees and 0 degrees, which is equal to or higher than the freezing start temperature of food, and is -3 degrees here.
  • the second set temperature is set as a temperature lower than the normal temperature, and is set to -11 degrees here.
  • control execution time and the set temperature values described here are selected to be preferable values for accurately entering the supercooling control. However, it may be changed according to the cooling capacity of the refrigerator 1. Since the special temperature control is redone by opening and closing the door as a signal, the special temperature control can be started in accordance with the food input performed in conjunction with the opening and closing of the door.
  • normal temperature control is performed. Further, when the door of the freezer compartment 123 of the storage compartment 12 is opened and closed during the life time zone, special temperature control is performed along with the opening and closing of the door of the freezer compartment 123 during the life hours other than the time zone determined to be less frequently used. Is carried out. After the special temperature control is completed, the normal temperature control is performed again.
  • FIG. 10 is a flowchart showing special temperature control according to the first embodiment of the present invention. As shown in FIG. 10, the special temperature control is started in a living time period other than the time period in which the usage frequency is determined to be low.
  • the control unit 11 differs from the normal temperature such as ⁇ 7° C.-3
  • the temperature is cooled to the first set temperature such that the first set temperature such as degrees is maintained for a certain time such as 100 minutes.
  • the control unit 11 determines whether or not the door is opened/closed during cooling to the first set temperature in step S92. If the door has been opened or closed, the process returns to step S91, and the special temperature control is restarted from the beginning. The re-execution of the special temperature control will be described later. Further, when the process is redone, how much time has elapsed at the first set temperature is stored. If the door has not been opened or closed, the process proceeds to step S93.
  • the control unit 11 determines in step S93 whether or not a fixed time such as 100 minutes has elapsed. When the fixed time has elapsed, the process proceeds to step S94. If the fixed time has not elapsed, the process returns to step S92.
  • step S94 the control unit 11 continuously maintains the second set temperature such as ⁇ 11 degrees, which is different from the normal temperature such as ⁇ 7 degrees, for a certain period of time such as 120 minutes continuously from the state of the first set temperature. Cool to the second set temperature.
  • the second set temperature such as ⁇ 11 degrees, which is different from the normal temperature such as ⁇ 7 degrees
  • the control unit 11 determines whether or not the door is opened/closed during cooling to the second set temperature in step S95. If the door has been opened or closed, the process returns to step S91, and the special temperature control is restarted from the beginning. Further, when the process is redone, how much time has elapsed at the first set temperature and the second set temperature is stored. If the door has not been opened or closed, the process proceeds to step S96.
  • the control unit 11 determines in step S96 whether a fixed time such as 120 minutes has elapsed. When the fixed time has elapsed, the process proceeds to step S97. If the fixed time has not elapsed, the process returns to step S95.
  • step S97 determines in step S97 whether or not the special temperature control has to be redone. If there is a redo, the process proceeds to step S98.
  • step S98 temperature averaging control, which will be described later, is performed in the time zone when it is determined that the next usage frequency is low. When there is no redo, the special temperature control is ended and the normal temperature control is performed.
  • FIG. 11 is an explanatory diagram showing the special temperature control of the redone according to the first embodiment of the present invention. As shown in FIG. 11, when the door opening/closing detector 13 detects the opening/closing of the door of the freezer compartment 123 during the special temperature control, the special temperature control is restarted from the beginning. The redo is extended for more than 6 hours when it is determined that the frequency of use is low.
  • the special temperature control is restarted from the beginning, and the inside of the storage chamber 12 is cooled again to the first set temperature and maintained for a certain period of time. After that, the second set temperature is maintained for a certain period of time.
  • FIG. 12 is an explanatory diagram showing the temperature averaging control according to the first embodiment of the present invention.
  • the special temperature control is performed once or more, the temperature in the freezing compartment 123, which is the storage compartment 12, is different from the normal temperature. Therefore, temperature averaging is performed to maintain the temperature in the freezing compartment 123, which is the storage compartment 12, in a temperature zone lower than the normal temperature so that the averaged temperature in the freezing compartment 123, which is the storage compartment 12, becomes the same as the normal temperature.
  • the temperature averaging control is performed for 6 hours when it is determined that the frequency of use is low.
  • the temperature averaging control is a special control.
  • the special temperature control is repeatedly performed by performing the special temperature control a plurality of times in the living time period other than the time period in which the use frequency is low, and the temperature in the freezing chamber 123, which is the storage chamber 12, is higher than the normal temperature.
  • the first set temperature is maintained. In this case, calculate the average temperature of your daily life, and if the average temperature is higher than the normal temperature, make sure that the average temperature of the day is the same as the normal temperature.
  • the temperature averaging control for cooling to the second set temperature lower than the normal temperature is performed. After the temperature averaging control is carried out, the set temperature is changed to the normal temperature when shifting to a period other than the time period in which the frequency of use is low.
  • the temperature in the freezing compartment 123 which is the storage compartment 12
  • the temperature in the freezing compartment 123 can be maintained at the same temperature as the normal temperature. Therefore, the storage period of the food due to the storage temperature can be stably maintained.
  • special temperature control is performed multiple times during the life time, and temperature averaging control is performed during the next time when the usage frequency is low.
  • the special temperature control is repeatedly performed during the life time, the average temperature throughout the day becomes the normal temperature, so the temperature averaging control that operates at the second set temperature during the next time when the frequency of use is low. Is required.
  • the extension time is defined as the elapsed time from the start of control to the start of special temperature control for re-execution.
  • the extension time is reset at the timing of shifting from the living time zone to the less frequently used time zone, or at the timing of shifting from the less frequently used time zone to the living time zone.
  • the second set temperature that was scheduled to be executed by the special temperature control before the restart is performed.
  • the remaining time obtained by subtracting the time of the second set temperature actually performed from the temperature execution time is defined as the shortage time.
  • A1 the area obtained from the difference between the first set temperature and the reference temperature and the extension time.
  • A2 the area obtained from the difference between the reference temperature and the second set temperature and the multiplication of the shortage time.
  • the difference between the reference temperature and the second set temperature and the execution time X of the temperature averaging control which is the time of the second set temperature, are set.
  • B be the area obtained from the multiplication.
  • the execution time X of the temperature averaging control in FIG. 12 is calculated according to the above calculation method.
  • the difference between the first set temperature and the reference temperature is 4K due to the difference between -3 degrees and -7 degrees.
  • the difference between the reference temperature and the second set temperature is 4K due to the difference between -7 degrees and -11 degrees. That is, A1, A2, and B can be determined only by the operating time in this example.
  • A1 is 50 minutes, which is 50
  • A2 is two 115 minutes, which is 230
  • the execution time X of the temperature averaging control is 280 minutes, which is 4 hours and 40 minutes.
  • the purpose of determining 6 hours with a low frequency of use is to enable the temperature averaging control in the special temperature control.
  • the control for performing cooling at a temperature lower than the normal temperature, which is the second set temperature by the temperature averaging control is 4 hours and 40 minutes with respect to 6 hours, which is less frequently used. This is an example with a small margin.
  • a restriction may be set so that the temperature averaging control is performed for 4 hours.
  • 6 hours with a low frequency of use is discriminated from 8 hours with a low frequency of use in the first embodiment. Is also good.
  • the refrigerator 1 includes a storage chamber 12 that has an openable/closable door and cools and stores food such as stored products.
  • the refrigerator 1 includes a door opening/closing detection unit 13 that detects opening/closing of the door of the storage room 12.
  • the refrigerator 1 includes a storage unit 111 that stores the number of times of opening and closing the door detected by the door opening/closing detection unit 13 for each arbitrary unit time and for an arbitrary number of days.
  • the refrigerator 1 includes a control unit 11.
  • the control unit 11 calculates an average value between arbitrary days, which is the average of the number of times of opening and closing the door in each unit time during an arbitrary number of days, from the number of times of opening and closing the door for each arbitrary unit time stored in the storage unit 111. ..
  • the control unit 11 calculates the latest total value obtained by summing up the number of times of opening and closing the door for each unit time up to the set time, starting from each unit time in the average value over the arbitrary days.
  • the control unit 11 calculates the total value immediately after summing the number of times of opening and closing the door for each unit time up to the set time, starting from each unit time in the average value between arbitrary days.
  • the control unit 11 determines a section having a small opening/closing frequency of the storage chamber 12 divided by the set time based on one or both of the latest total value and the immediately following total value.
  • the average value for any number of days is updated every 24 hours, and the number of times of opening and closing the door in each section time can be grasped in a form following the change in the living condition of the user, and the frequency of use by the user is small.
  • Any time zone can be predicted according to the living situation of the user. Further, the time period in which the frequency of use is small is predicted by paying attention to the amount of change in the number of times of opening and closing the door, not the absolute value of the number of times of opening and closing the door.
  • the threshold value that the frequency of use is high when the number of door openings is 10 or more is not set. Therefore, in the case of a user who opens the door about 5 times at most per unit time, it is not always determined that the frequency of use is low throughout the day. Furthermore, when the usage frequency changes every unit time, the operating state does not change momentarily, and the energy consumption performance does not deteriorate.
  • the control unit 11 uses the start time of one first unit time for calculating the latest total value of the minimum values as a reference, and It is determined that the interval between the set time before the start time of one unit time and the start time of the first unit time is the interval in which the opening/closing frequency of the storage chamber 12 is small.
  • the average value for any number of days is updated every 24 hours, and the number of times of opening and closing the door in each section time can be grasped in accordance with the change in the living condition of the user, and the latest total value can be obtained for each section time. Calculate the minimum value of. Then, it can be understood that the frequency of use of the refrigerator 1 is low until the first unit time, which is one minimum interval time. Accordingly, it is possible to accurately grasp the boundary of the frequency of use in which the user does not use the refrigerator 1 most by the first unit time and uses the refrigerator 1 most by the first unit time or later.
  • the temperature averaging control can be performed in the time zone determined to be less frequently used.
  • the controller 11 calculates one immediately after the maximum. Based on the start time of the second unit time, it is determined that the interval between the set time before the start time of the second unit time and the start time of the second unit time is the interval in which the opening/closing frequency of the storage chamber 12 is small.
  • the immediately following total value is calculated in addition to the most recent total value, and when there are multiple minimum values of the most recent total values and the maximum value of the immediately following total values is one, the immediately following total value of the maximum values is calculated. From the start time of the second unit time when the value is calculated, it can be understood that a time zone between the set time and the start time of the second unit time is the usage frequency is low. Accordingly, it is possible to accurately grasp the boundary of the frequency of use in which the user does not use the refrigerator 1 most by the second unit time and uses the refrigerator 1 most by the second unit time or later.
  • the temperature averaging control can be performed in the time zone determined to be less frequently used.
  • the control unit 11 determines the earliest maximum value among the plurality of immediately following sum values.
  • the opening and closing frequency of the storage chamber 12 between the start time of the third unit time and the start time of the third unit time, based on the start time of one third unit time for which the total time immediately after the value is calculated is used as a reference. Is a small section.
  • the immediately following total value is calculated, and when there are a plurality of latest minimum total values and there are a plurality of immediately following total values, the immediately following total of the plurality of maximum values is calculated. From the start time of the third unit time when the total value immediately after the maximum value having the smallest number among the values is calculated, it can be understood as a time zone in which the frequency of use is low between the set time before and the start time of the third unit time. Accordingly, it is possible to accurately grasp the boundary of the frequency of use, in which the user does not use the refrigerator 1 most by the third unit time and uses the refrigerator 1 most by the third unit time or later.
  • the temperature averaging control can be performed in the time zone determined to be less frequently used.
  • control unit 11 performs special control such as temperature averaging control that continues for a plurality of unit times in a time period when it is determined that the opening/closing frequency of the storage chamber 12 is low.
  • the control unit 11 maintains the temperature in the storage chamber 12 at the first set temperature different from the normal temperature for a certain period of time, and then keeps the temperature at the second set temperature different from the first set temperature.
  • the special temperature control when the special temperature control other than the special control over a plurality of unit times is set, the special temperature control can be performed in a time period other than the time period when it is determined that the usage frequency is low.
  • the control unit 11 when the door is opened or closed during the special temperature control, the control unit 11 restarts the special temperature control from the beginning.
  • Special temperature control must be performed continuously to optimally cool stored foods. According to this configuration, when the door is opened and closed during the special temperature control, the special temperature control is restarted from the beginning. As a result, the stored food or the like can be optimally cooled with good quality.
  • the control unit 11 when the control unit 11 performs the special temperature control again from the beginning, the control unit 11 operates at the second set temperature in the section in which the opening/closing frequency of the storage chamber 12 is small next time and throughout the day.
  • the temperature averaging control for adjusting the temperature in the storage chamber 12 to the normal temperature is performed.
  • the special control is temperature averaging control.
  • the temperature averaging control which is a special control that extends over a plurality of unit times
  • the temperature averaging control can be performed in a time zone determined to be infrequently used.
  • the temperature averaging control is performed when the special temperature control is performed again from the beginning to cause a difference between the current temperature in the storage chamber 12 and the normal temperature in the storage chamber 12.
  • the temperature inside the storage chamber 12 is averaged to the normal temperature by the temperature averaging control, and the inside of the storage chamber 12 can be maintained at the optimum temperature for cooling the stored food or the like.
  • control unit 11 determines that a section other than the section in which the storage room 12 is opened and closed less frequently is the living time zone, and performs the special temperature control in the living time zone.
  • Special temperature control needs to be carried out immediately and continuously after opening and closing the door of the storage room 12 in order to optimally cool the stored foods.
  • the special temperature control is performed during the living time period when the door of the storage room 12 is opened and closed.
  • the stored food or the like can be optimally cooled with good quality.
  • control unit 11 re-executes the special temperature control from the beginning by extending it from the living time period to the section where the opening/closing frequency of the storage chamber 12 is small.
  • the special temperature control when the special temperature control cannot be performed during the life time, the special temperature control is extended to the time period when it is determined that the usage frequency is low thereafter. Thereby, the special temperature control is performed before the stored food or the like is damaged by long-term storage, and the stored food or the like can be optimally cooled with good quality.
  • Embodiment 2 the defrosting operation is performed as a special control at an arbitrary time determined in the first embodiment and having a low use frequency.
  • the defrosting operation can be performed while suppressing the temperature rise in the storage chamber 12.
  • the values of the latest 6-hour total value and the immediately-after 6-hour total value of the 7-day average value are calculated to reduce the frequency of use 6 I was determining the time.
  • the defrosting operation of the second embodiment and the control time before and after the defrosting operation about 3 hours are required.
  • the latest three-hour total value and the immediately-following three-hour total value of the seven-day average value are calculated, and the three-hour usage frequency is determined.
  • the arbitrary times of the immediate total value, the latest total value, and the arbitrary time with low usage frequency be set to the same value.
  • the respective arbitrary times may be set to different values.
  • the conventional defrosting timing there is a start by the operating time of the compressor or the refrigerator 1, or a start by a detection value of a temperature detecting means for detecting the temperature of the cooler 14.
  • the defrosting operation by performing the defrosting operation during the time when the user does not open and close the door, the temperature rise in the storage chamber 12 is suppressed.
  • the configuration is performed when there is no opening/closing of the door, there may be a case where the timing when defrosting is necessary and the section where the number of times the door is opened/closed that fluctuates depending on the user do not match. It is possible that driving may not be possible.
  • the method of determining the time zone of low use frequency determined in the first embodiment is used.
  • the refrigerator 1 includes the defrost heater 15 that defrosts the cooler 14.
  • the special control is a defrosting operation in which the defrosting heater 15 defrosts the cooler 14.
  • Embodiment 3 the time zones of morning, daytime, night, and midnight are set from an arbitrary time of low use frequency determined in the first embodiment, and the operation is controlled according to each.
  • the arbitrary time with low usage frequency is set to 6 hours.
  • This 6 hours with a low frequency of use is defined as midnight, and during this period, it is determined that the frequency of use of the refrigerator 1 by the user is low, and it is generally a time period when the user is sleeping.
  • 6 hours from the end of midnight are defined as morning
  • 6 hours from the end of morning are defined as daytime
  • 6 hours from the end of day to the start of midnight are defined as night.
  • 6 hours is set because the possibility of becoming a 6-hour segment obtained by dividing one day into four is considered as a general lifestyle pattern.
  • one day is divided into 24 blocks from 0 block to 23 blocks on an hourly basis.
  • this section is set to midnight.
  • ⁇ It is expected that the section with the least frequency of use will be bedtime, regardless of the user. Therefore, it is assumed that it is midnight, then 0 blocks from the end of midnight to 5 blocks 6 hours later are in the morning, 6 blocks from the end of the morning to 11 blocks 6 hours later are noon, and so on. 12 to 17 blocks are defined as night.
  • the refrigerator 1 By defining one day as morning, noon, night, and midnight in this way, for example, in the case of the refrigerator 1 in which the frequency of use of frozen food for lunch is increased in the morning, that is, the frequency of opening and closing the freezer compartment 124 tends to increase. In anticipation that the temperature in the storage room 12 will rise in the morning, the refrigerator 1 is operated with the cooling capacity improved from midnight.
  • this detection result may be taken into consideration to determine whether or not to implement the operation for improving the cooling capacity at the next midnight.
  • the refrigerator 1 is operated so that the ice making is performed at the midnight timing and the ice making is completed at the morning timing.
  • the number of beverages taken out will increase in the daytime hours when the temperature is the highest in the day, and the cooling performance of the refrigerating room 121 is increased one hour before the optional end time in the morning so that the refrigerator can be used. 1 is driven.
  • the detection result is taken into consideration to determine whether or not to implement the morning cooling operation in preparation for the next ice making. good.
  • the cooling capacity is improved so that the temperature shifts in a temperature zone lower than a preset temperature in advance.
  • the refrigerator 1 may be operated. At the end of the daytime, if the temperature change throughout the daytime is lower than the set temperature by 1°C, which is an arbitrary frequency, even if you decide whether to learn whether to improve the cooling capacity assuming the next daytime shopping good.
  • the section is defined as morning, daytime, night, and midnight, but it may be divided into a plurality of time zones such as A, B, C, and D in general.
  • the time of low use frequency is defined as midnight
  • the time zone is defined as morning, daytime, and night, which are set as basic pillars in living condition prediction. Therefore, the refrigerator 1 can be optimally operated for each time zone based on the content predicted in advance.
  • the history is a time zone in which one day is divided into four every 6 hours defined above, that is, morning, daytime, night, midnight, or general time. It is saved in each time zone such as A, B, C, and D. If special temperature control is performed at least once each in the morning, daytime, and night among these four time zones, it is determined that there is activity in three time zones from morning to night, and the midnight time zone It is determined that the door is unlikely to be opened/closed during the time of low use frequency, and that the special temperature control is not performed even if the door is opened/closed during the midnight time.
  • the special temperature control is not performed at least during one of the morning, daytime, and evening hours, there is no activity during at least one of the morning and evening hours on that day, which is normally the case. It is judged that there is a possibility that the door may be opened and closed even in the midnight hours when it is judged that the usage frequency is low. Then, when the opening/closing of the door is actually detected during the midnight time, the special temperature control is executed.
  • the special temperature control execution timing is automatically determined and implemented even when the life pattern is different from normal. As a result, it is possible to provide optimum temperature control at an appropriate timing without the need for manual operation by the user.
  • the special control is a normal operation and an operation in which the cooling capacity is changed.
  • the refrigerator 1 can be operated by changing the cooling capacity during normal use and the cooling capacity during the time of low usage, and the stored foods can be optimally stored in the storage room 12 with good quality.
  • control unit 11 defines a section in which the opening and closing frequency of the storage room 12 is small as 6 hours at midnight, and determines morning, noon, and night in order every 6 hours from the end of midnight.
  • the control unit 11 performs control with a predetermined cooling capacity in accordance with the respective time zones of midnight, morning, daytime, and night.
  • a time zone with a low frequency of use is defined as midnight, and the time zone after midnight is defined as the starting point, and the subsequent time zones are defined as morning, noon, and night.
  • the living situation prediction of the user can be basically divided, and the refrigerator 1 can be optimally operated with the content predicted in advance for each time zone such as midnight, morning, day, and night.

Landscapes

  • 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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Defrosting Systems (AREA)
PCT/JP2019/000684 2019-01-11 2019-01-11 冷蔵庫 WO2020144847A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/JP2019/000684 WO2020144847A1 (ja) 2019-01-11 2019-01-11 冷蔵庫
JP2020565135A JP7038856B2 (ja) 2019-01-11 2019-01-11 冷蔵庫
CN201980076221.8A CN113227685B (zh) 2019-01-11 2019-01-11 冰箱
SG11202104529VA SG11202104529VA (en) 2019-01-11 2019-01-11 Refrigerator
AU2019420355A AU2019420355B2 (en) 2019-01-11 2019-01-11 Refrigerator
TW108145965A TWI717938B (zh) 2019-01-11 2019-12-16 冰箱

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/000684 WO2020144847A1 (ja) 2019-01-11 2019-01-11 冷蔵庫

Publications (1)

Publication Number Publication Date
WO2020144847A1 true WO2020144847A1 (ja) 2020-07-16

Family

ID=71520311

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/000684 WO2020144847A1 (ja) 2019-01-11 2019-01-11 冷蔵庫

Country Status (6)

Country Link
JP (1) JP7038856B2 (zh)
CN (1) CN113227685B (zh)
AU (1) AU2019420355B2 (zh)
SG (1) SG11202104529VA (zh)
TW (1) TWI717938B (zh)
WO (1) WO2020144847A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022174317A1 (en) * 2021-02-17 2022-08-25 Electrolux Do Brasil S.A. Method for controlling refrigerator operation and refrigerator
WO2023100346A1 (ja) * 2021-12-03 2023-06-08 三菱電機株式会社 冷蔵庫および冷蔵庫通信システム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI756147B (zh) * 2021-06-25 2022-02-21 東元電機股份有限公司 具有分段式除霜功能之冰箱及其分段式除霜方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526564A (ja) * 1991-05-13 1993-02-02 Mitsubishi Electric Corp 冷蔵庫の制御装置
US5483804A (en) * 1994-03-28 1996-01-16 Sanyo Electric Co., Ltd. Defrost control apparatus for refrigerator
JPH08285431A (ja) * 1995-04-13 1996-11-01 Matsushita Refrig Co Ltd 冷凍冷蔵庫の制御装置
WO2010073652A1 (ja) * 2008-12-24 2010-07-01 パナソニック株式会社 冷蔵庫および圧縮機
JP2014137181A (ja) * 2013-01-17 2014-07-28 Hitachi Appliances Inc 冷蔵庫
KR20150032404A (ko) * 2013-09-17 2015-03-26 삼성전자주식회사 냉장고 및 그 제어방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100120253A (ko) * 2009-05-05 2010-11-15 엘지전자 주식회사 냉장고
JP6373653B2 (ja) * 2013-06-25 2018-08-15 東芝ライフスタイル株式会社 冷蔵庫
JP2015038409A (ja) * 2013-08-19 2015-02-26 パナソニック株式会社 冷蔵庫
CN204555508U (zh) * 2015-03-12 2015-08-12 合肥美的电冰箱有限公司 冰箱
CN108562428B (zh) * 2018-04-18 2020-06-02 合肥羿振电力设备有限公司 一种冰箱门试验用不间断电源开门机
CN108426412B (zh) * 2018-05-28 2020-08-25 海信（山东）冰箱有限公司 一种冰箱的化霜控制方法和装置以及冰箱

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526564A (ja) * 1991-05-13 1993-02-02 Mitsubishi Electric Corp 冷蔵庫の制御装置
US5483804A (en) * 1994-03-28 1996-01-16 Sanyo Electric Co., Ltd. Defrost control apparatus for refrigerator
JPH08285431A (ja) * 1995-04-13 1996-11-01 Matsushita Refrig Co Ltd 冷凍冷蔵庫の制御装置
WO2010073652A1 (ja) * 2008-12-24 2010-07-01 パナソニック株式会社 冷蔵庫および圧縮機
JP2014137181A (ja) * 2013-01-17 2014-07-28 Hitachi Appliances Inc 冷蔵庫
KR20150032404A (ko) * 2013-09-17 2015-03-26 삼성전자주식회사 냉장고 및 그 제어방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022174317A1 (en) * 2021-02-17 2022-08-25 Electrolux Do Brasil S.A. Method for controlling refrigerator operation and refrigerator
WO2023100346A1 (ja) * 2021-12-03 2023-06-08 三菱電機株式会社 冷蔵庫および冷蔵庫通信システム

Also Published As

Publication number Publication date
AU2019420355A1 (en) 2021-05-27
CN113227685B (zh) 2022-08-19
JP7038856B2 (ja) 2022-03-18
JPWO2020144847A1 (ja) 2021-09-30
AU2019420355B2 (en) 2022-06-30
TW202026578A (zh) 2020-07-16
TWI717938B (zh) 2021-02-01
SG11202104529VA (en) 2021-05-28
CN113227685A (zh) 2021-08-06

Similar Documents

Publication Publication Date Title
JP5847235B2 (ja) 冷蔵庫
WO2020144847A1 (ja) 冷蔵庫
CN108870857B (zh) 肉类过冷保鲜控制方法、控制器及冰箱
US6606870B2 (en) Deterministic refrigerator defrost method and apparatus
CN108870855B (zh) 肉类微冻保鲜控制方法、控制器及冰箱
CA2409732C (en) Reduced energy refrigerator defrost method and apparatus
CN108870856B (zh) 肉类不冻保鲜控制方法、控制器及冰箱
CN112595016B (zh) 冰箱及其温度补偿方法、装置、存储介质
JP2008164273A (ja) 冷蔵庫
JP5959703B2 (ja) 冷蔵庫
US6557362B1 (en) Sealed system multiple speed compressor and damping control
JP7116588B2 (ja) 冷蔵庫、冷蔵庫制御方法、冷蔵庫制御プログラム
KR20100085270A (ko) 복수의 증발기들을 구비하는 냉장고의 제상제어 방법
JP2009236345A (ja) 冷蔵庫
EP1730457B1 (en) A cooling device and its control method
JP5544251B2 (ja) 冷蔵庫
JP7217758B2 (ja) 冷蔵庫
KR20070075674A (ko) 냉장고 및 그 온도제어방법
CN110940147A (zh) 一种具有食品不冻结功能的存储方法、冰箱
CN110940148A (zh) 一种具有食品不冻结功能的存储方法、冰箱
JP2020079676A (ja) 冷蔵庫および冷凍保存方法
CN114941927A (zh) 一种冰箱的控制方法、装置、存储介质及冰箱
CN110906652A (zh) 一种具有食品不冻结功能的存储方法、冰箱
CN110940146A (zh) 一种具有食品不冻结功能的存储方法、冰箱
CN110906648A (zh) 一种过冷却不冻结储存的控制方法和冰箱

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19908612

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020565135

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2019420355

Country of ref document: AU

Date of ref document: 20190111

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19908612

Country of ref document: EP

Kind code of ref document: A1