JP2013238346A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of properly enlightening a user on power saving by displaying an average door-opening time, resulting in enhancing the energy saving.SOLUTION: A refrigerator includes a refrigerator body having a storage compartment, a door for opening and closing the storage compartment, a door opening and closing detection unit 23 for detecting the opening and closing of the door, an average door-opening time calculation unit 28a for calculating an average door-opening time when a door-opening cumulative time of door-opening detected by the door opening and closing detection unit is divided by a door opening and closing frequency, and a notification means 39 for notifying the door-opening average time calculated by the door-opening average time calculation unit, wherein the door-opening average time is configured to be notified by the notification means. By this arrangement, the user can properly know the door-opening average time directly connected to the starting of a compressor, and thereby the user's power saving behavior becomes proper to be directly connected with the power saving and the energy saving performance of the refrigerator can be improved.

Description

  The present invention relates to a refrigerator with high energy saving performance.

  In general, refrigerators have a high power consumption ratio in the home, and there is a strong demand to suppress the power consumption as much as possible. For this reason, for example, there has been proposed a system in which the amount of power used is suppressed by automatically increasing the set temperature in the warehouse during the night when the user hardly opens and closes the door.

  In addition, since a lot of electric power is used to open and close the refrigerator door, the number of times the door is opened and closed, the time, etc. are measured in order to suppress this, and when the number of times the door is opened and closed reaches or exceeds a predetermined time, the display device It is configured to display a warning or a warning sound, notify the user of the increase in power usage due to opening and closing the door, reduce the number of times the door is opened and closed, and can be enlightened to reduce power usage (See, for example, Patent Document 1).

  FIG. 9 shows the refrigerator described in Patent Document 1. The door opening / closing detection unit 101 measures the number of times the door 102 is opened and closed, the number of times the door is opened and closed is counted by the number counting means 103, and the control means 104 determines the number of times. The set number or the previous day's number stored in the door opening / closing number storage means 105 is compared, and when the door opening / closing number exceeds the stored number, this is displayed on the display device 106 provided on the door 102 and the user is notified It is configured to notify that the number of times of opening and closing has increased and to enlighten to reduce the number of times of opening and closing the door.

JP 2002-147930 A

  According to the above-described conventional configuration, the user can know when the door opening / closing frequency or the door opening time exceeds a predetermined time. , Energy saving can be promoted.

  However, due to the recent severe power situation, there is room to promote further power savings by verifying the conventional technology for enlightening power savings by notifying the conventional door opening / closing frequency or the cumulative door opening time. I found out.

  That is, the reason for notifying the user of the number of times the door is opened or closed or the total opening time of the door is to suppress an increase in power consumption because the internal temperature rises due to the opening and closing of the door and the compressor starts operation. However, it is presumed that the operation of the compressor is not necessarily linked to the simple door opening / closing frequency or the simple door opening cumulative time, and that the conventional technology does not provide appropriate energy saving enlightenment to the user.

For example, even if the door is opened and closed frequently by the user, if the opening time per operation is short, the compressor load is small and the compressor is less likely to start up and operate. If the accumulated time when the door opening time per unit is short, the compressor is rarely started and operated as described above. Conversely, even if the door opening / closing frequency is small, if the door opening time is long, the compressor is always started and operated. Especially in the case of a freezer room or vegetable room with a drawer-type door, all the food in the freezer room or vegetable room is pulled out to the outside of the refrigerator by opening the drawer-type door and exposed for a long time. The cooling load is greatly increased, for example, the outside warm air flows into the extracted freezer compartment or vegetable compartment and the food temperature rises. As a result, not only the compressor is started but also the driving time of the compressor is prolonged, and the power consumption is increased instead of power saving. Therefore, simply notifying the number of times of opening and closing the door and the total opening time of the door has little power saving effect, and it is important to notify information that takes an action to shorten the opening time of each door.

  Since the compressor operation is not necessarily linked to the simple door opening / closing times or the total door opening time, the conventional simple telling the user of the number of door opening / closing times or the total door opening time is appropriate power saving for the user. It was not possible to enlighten.

  The present invention has been made paying attention to such points, and provides a refrigerator capable of accurately enlightening for power saving and consequently improving energy saving.

  In order to solve the conventional problems, the present invention includes a refrigerator body having a storage room, a door that opens and closes the storage room, a door opening and closing detection unit that detects opening and closing of the door, and the door opening and closing detection unit. The door opening average time calculating unit that calculates the door opening average time by dividing the detected door opening accumulated time by the number of times of opening and closing the door, and a notification means for notifying the door opening average time calculated by the door opening average time calculating unit It is set as the structure which alert | reports door opening average time by the said alerting | reporting means.

  As a result, the user can accurately know the door opening average time directly connected to the start-up of the compressor, and accordingly the power saving action by the user becomes accurate and directly connected to power saving, thereby improving the energy saving performance of the refrigerator. be able to. In addition, the user's power saving behavior tends to take the action of shortening the door opening time per time, and as a result, the user can promote power saving without forcibly reducing food retrieval opportunities. It is possible to save energy while maintaining usability.

  The present invention notifies the user of information directly related to power saving and enables accurate power saving enlightenment, and the power saving action performed by the user is also accurate, enabling effective power saving and use. It can be set as a refrigerator with high energy saving, maintaining the property.

The front view which shows the use condition of the refrigerator in Embodiment 1 of this invention. Schematic sectional view of the refrigerator Schematic cross-sectional view of the refrigerator Front view showing the operation unit of the refrigerator Control block diagram showing the refrigerator control unit of the refrigerator and the portable control unit of the portable terminal The flowchart explaining operation | movement in the refrigerator control part of the refrigerator and the portable control part of a portable terminal The control block diagram which shows the refrigerator control part of the refrigerator in the same Embodiment 2, and the portable control part of a portable terminal Explanatory drawing of the refrigerator in the third embodiment Explanatory drawing showing a conventional refrigerator

1st invention is a refrigerator main body which has a storage room, a door which opens and closes the said storage room, a door opening and closing detection part which detects opening and closing of the said door, and the door opening total of the door opening detected by the said door opening and closing detection part A door opening average time calculating unit that calculates the door opening average time by dividing the time by the number of times of opening and closing the door, and a notifying unit that notifies the door opening average time calculated by the door opening average time calculating unit, It is set as the structure which alert | reports door opening average time.

  As a result, the user can accurately know the door opening average time directly connected to the start-up of the compressor, and accordingly the power saving action by the user becomes accurate and directly connected to power saving, thereby improving the energy saving performance of the refrigerator. be able to. In addition, the user's power saving behavior tends to take the action of shortening the door opening time per time, and as a result, the user can promote power saving without forcibly reducing food retrieval opportunities. It is possible to save energy while maintaining usability.

  The second invention further includes a door opening / closing number storage unit for storing the door opening / closing number of times detected by the door opening / closing detection unit in the first invention, and the notification unit is provided with the door opening / closing number storage unit from the door opening / closing number storage unit. The door opening / closing frequency is also notified.

  As a result, the user can know the door opening / closing frequency as well as the door opening average time at the same time, and the user can be encouraged to take power-saving action in the direction of reducing the door opening / closing frequency, thereby improving energy saving. it can.

  The third invention further includes a door opening accumulated time storage unit for storing the door opening accumulated time detected by the door opening / closing detecting unit in the first or second invention, and the notifying unit is configured with the door opening accumulated time together with the door opening accumulated time. It is set as the structure which alert | reports the door opening accumulated time from a time memory | storage part.

  Thereby, the user can also know the door opening accumulated time per day, can promote the power saving action in the direction of reducing the door opening accumulated time, and can further improve the energy saving.

  According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the electronic device further includes a previous day data storage unit that stores the average door opening time of the previous day, and the notification unit notifies the average door opening time by comparison with at least the previous day. is there.

  Thereby, it is possible to accurately know the door opening average time as compared with the previous day, and it is possible to more reliably connect to the power saving action, and it is possible to promote energy saving.

  According to a fifth aspect of the present invention, in the fourth aspect, the previous day data storage unit stores one or both of the door opening / closing count / door opening accumulated time together with the door opening average time of the previous day, and the notification means At least one of the door opening average time and the door opening / closing frequency / door opening cumulative time or both are displayed in comparison with at least the previous day.

  As a result, it is possible to accurately know the door opening average time and the door opening / closing frequency / door opening cumulative time compared to the previous day, and more reliably than the fourth invention, it can be linked to the power saving action. , Energy saving can be promoted.

  A sixth invention further comprises a time zone dividing section for storing at least the door opening / closing average time for each time zone in the first to fifth inventions, and the notifying means is divided by the time zone dividing section. The stored door opening / closing average time is notified for each time zone.

  As a result, the user can accurately know the door opening average time according to, for example, the eating habits putter, and the door opening average time in the breakfast time zone is compared with the time of yesterday in the same time zone. The increase / decrease can be accurately known, and the consciousness of reducing the door opening average time is effectively acted on, which can be linked to the detailed power saving action by the user, and the energy saving can be promoted.

  7th invention is the radio | wireless transmission / reception part which can carry out near field data communication with the portable terminal provided with display parts, such as a mobile telephone, in the 1st-6th invention. In addition to the configuration, the display unit of the portable terminal is configured as a notification means of the door opening average time.

  As a result, the user can know the door opening average time etc. on the display unit of the mobile terminal by bringing the mobile terminal such as a mobile phone close to the wireless transmission / reception unit, and the display device is abolished on the refrigerator side. The use of display power such as the number of times the door is opened and closed can be reduced, that is, the power consumption of the refrigerator itself can be further suppressed.

  According to an eighth aspect, in the seventh aspect, the portable terminal is configured to be communicable with the Internet line, and the door opening average time is displayed on a terminal such as a personal computer connected to the Internet line.

  With this, for example, you can check at least one of the door opening average time and the number of door opening / closing times / door opening time on a personal computer of the company, and call attention to your child or grandmother at home to promote power saving. You can also

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
In this embodiment, a wireless transmission / reception unit that transmits data such as the number of times the door is opened and closed is provided in the refrigerator, a portable terminal such as a mobile phone is brought close to the wireless transmission / reception unit, and the average time for opening the door is displayed on the display unit of the portable terminal. A description will be given of an example in which the data is displayed or the control data of the refrigerator is transmitted from the portable terminal to the wireless transmission / reception unit.

  1 is a front view showing a use state of a refrigerator in Embodiment 1 of the present invention, FIG. 2 is a schematic sectional view of the refrigerator, FIG. 3 is a schematic plan sectional view of the refrigerator, and FIG. 4 is an operation unit of the refrigerator. FIG. 5 is a control block diagram illustrating the refrigerator control unit of the refrigerator and the portable control unit of the portable terminal, and FIG. 6 is a flowchart illustrating operations in the refrigerator control unit and the portable control unit.

  In FIG. 1, reference numeral 1 denotes a refrigerator main body, which has a plurality of storage chambers 2, 3, 4, 5, 6 as shown in FIG. These storage rooms are a refrigerator room 2, an ice making room 3, and a switching room 4 located on the side of the ice making room 3 from above (switchable from a freezing room temperature of about -18 ° C to a vegetable room temperature of about 6 ° C), a freezing room 5 、 Vegetable room 6 The layout is appropriately set as necessary.

  The refrigerator main body 1 is composed of an outer box 1a mainly using a steel plate, an inner box 1b formed of a resin such as ABS, and a hard foam filled and foamed in a space between the outer box 1a and the inner box 1b. It is comprised with the urethane foam 1c. Furthermore, the vacuum heat insulating material 1d is embedded in the hard urethane foam in order to partially enhance the heat insulating performance as necessary. For example, as shown in FIG. 2, a vacuum heat insulating material 1d is attached in the space of the back surface corresponding to the ice making chamber 3, the switching chamber 4, and the freezing chamber 5 to form a composite with the hard urethane foam 1c.

  Further, the top surface portion of the refrigerator body 1 has a stepped recess shape toward the back side of the refrigerator, and a machine room 7 is formed in the step-like recess, and the compressor room 8, moisture is formed in the machine room 7. A high-pressure side component of the refrigeration cycle such as a dryer (not shown) for removal and a refrigerator control unit (not shown) are accommodated to increase the storage capacity of the lowermost vegetable compartment.

  The cooler 9 constituting the low-pressure side of the refrigeration cycle is disposed behind the freezer compartment 5 so as to cool the storage chambers 2 to 6 by forcibly blowing the cool air generated by the cooler 9 by the cooling fan 10. It has become.

  Each of the storage chambers 2 to 6 is configured to be opened and closed by doors 11, 12, 13, 14, and 15 provided corresponding to the storage chambers 2 to 6, respectively. Each of the doors 11 to 15 has a handle portion 16, Like the refrigerator main body 1, the hard urethane foam 1 c is filled and foamed. Each of these doors 11 to 15 is provided with a door opening / closing detection unit (not shown in the diagram explaining the structure) correspondingly, and the number of times of opening / closing and the accumulated opening time data are processed by the refrigerator control unit. It is like that.

  Here, in the refrigerator of this embodiment, the door of the refrigerator compartment 2 located at the top is a double door with two doors 11a and 11b having different left and right areas, and the left and right doors 11a and 11b The abutting surface portion has a convex shape that protrudes most forward. And the operation unit 18 is provided in the edge part of the right side door 11b used as this convex part over the up-down direction.

  As shown in FIG. 4, the operation unit 18 includes an electrostatic touch type setting switch 19 for setting the temperature of each of the storage chambers 2 to 6, and a setting state display unit 20 disposed above the setting switch 19. In this refrigerator, a wireless transmission / reception unit 21 including an RFID (Radio Frequency IDentification) tag or the like is provided. In this embodiment, the RFID tag used as the wireless transmission / reception unit 21 is a passive tag type having a communication distance of 100 mm or less.

  The wireless transmission / reception unit 21 transmits / receives data to / from a portable terminal 22 such as a mobile phone, a smartphone, or a PDA. For example, data such as a door opening average time and a door opening / closing count or a door opening accumulated time is output and transmitted to the portable terminal 22. On the contrary, the wireless transmission / reception unit 21 receives control data such as a set temperature sent to the portable terminal 22 via the Internet communication from the portable terminal 22.

  Hereinafter, the relationship between the refrigerator control unit including the wireless transmission / reception unit 21 and the mobile control unit of the mobile terminal 22 will be described with reference to FIGS. 5 and 6. FIG. 5 is a control block diagram showing the refrigerator control unit of the refrigerator and the portable control unit of the portable terminal, and FIG. 6 is a flowchart for explaining the control.

  In FIG. 5, reference numeral 23 denotes the door opening / closing detection unit, 24 denotes a door opening / closing number counting unit that counts the number of door opening / closing times detected by the door opening / closing detection unit 23, and 25 denotes the number of times counted by the door opening / closing number counting unit 24. A door opening / closing number storage unit to be stored, 26 is a door opening time measuring unit for measuring a door opening time (time during which the door is open) detected by the door opening / closing detection unit 23, and 27 is the door opening. A door opening time storage unit that cumulatively stores the time measured by the time measuring unit 26, 28 is a door opening average time storage unit, and a door opening / closing number storage unit that stores the door opening total time stored in the door opening time storage unit 27. 25 stores the door opening average time from the door opening average time calculating unit 28a that calculates the door opening average time by dividing by the number of times the door is opened and closed. 29 is a 24-hour clock, 30 is the previous day data storage unit, and the door opening accumulated time and door opening / closing time stored in the door opening time storage unit 27 together with the door opening average time stored in the door opening average time storage unit 28. The door opening / closing frequency stored in the frequency storage unit 25 is rewritten and stored by the data rewriting unit 30a on the previous day.

Reference numeral 21 denotes the wireless transmission / reception unit described above, which serves as an output unit for data such as the door opening average time, and is configured by an RFID tag integrated with the antenna 21a. The wireless transmission / reception unit 21 includes a proximity communication detection unit 31 that detects when a portable terminal 22 such as a mobile phone, a smartphone, or a PDA approaches and requests data, and when a data request from the portable terminal 22 is detected, the wireless transmission / reception unit 21 The transmission / reception unit 21 operates in a dielectric manner. Accordingly, when the portable terminal 22 approaches the wireless terminal 21, the wireless transmission / reception unit 21 is activated by the proximity communication detection unit 31, and the latest data stored in each of the storage units 25, 27, and 28 is externally transmitted from the antenna 21a. Will be sent to.

  On the other hand, the mobile terminal 22 uses a general mobile phone in this embodiment, and as is well known, the first communication unit 32 that performs near field communication, its antenna 32a, and the second communication unit 34 for call and Internet communication. And its antenna 34a, first and second communication control units 35 and 36 for controlling these communication units, a portable control unit 38 including a display control unit 37, a display unit 39 such as a liquid crystal display, and an operation unit such as a touch switch 40, a storage unit 41, and the like. And when this portable terminal 22 switches to the near field communication by the 1st communication control part 35 by operation of the operation part 40, while transmitting a data request signal to the other party and enabling reception of the data from the other party, the display control part 37 switches the display on the display unit 39 and displays the data received by the first communication unit 32 on the display unit 39, that is, by bringing the antenna 32a of the first communication unit 32 closer to the radio transmission / reception unit 21 of the refrigerator. Data such as the number of times of opening and closing the door from 21 can be received and displayed on the display unit 39.

  There are various short-distance communication means between the portable terminal 22 and the wireless transmission / reception unit 21, and any of infrared communication, wireless LAN, Bluetooth (registered trademark), etc. may be used. Considering the use of mobile phones and smartphones, it is preferable to use short-range communication means for exchanging data such as phone numbers between mobile phones and smartphones, and this embodiment adopts this short-range communication method doing.

  In the above configuration, the operation will be described below using the control flow of FIG. First, when the user opens the door of the refrigerator, for example, the right door 11b of the refrigerator compartment 2 for taking in and out stored items, in step 1, the door open / close detection unit 23 detects the door open / close. The counting unit 24 counts the number of doors opened and closed, and the door opening time measuring unit 26 cumulatively measures the door opening time, and stores the number of door opening and closing times and the door opening accumulated time in Step 3. In step 4, the door opening average time calculating unit 28 a calculates the door opening average time at that time, and in step 5, the door opening average time calculating unit 28 a stores it in the door opening average time storage unit 28.

  Next, in step 6, it is confirmed whether the proximity communication detecting unit 31 has requested data. If there is no request, it is confirmed in step 7 whether one day (24h) has passed. When the time has elapsed, the number of times of opening and closing the door that has been stored so far is reset in step 8, and the process returns to step 1.

  In this state, when the user transmits the data request signal by bringing the antenna of the portable terminal 22 close to the wireless transmission / reception unit 21 of the refrigerator door (step 9), the proximity communication detection unit 31 detects this and wirelessly detects it in step 6. The transmission / reception unit 21 starts to operate, the wireless transmission / reception unit 21 performs the door opening average time stored in the door opening average time storage unit 28 in step 10, the door opening / closing number stored in the door opening / closing number counting unit 24, and the door The door opening accumulated time stored in the opening time storage unit 27 is acquired, and the data is transmitted in step 11. That is, the door opening average time, the door opening / closing frequency, and the door opening cumulative time when the portable terminal 22 is brought closer are acquired, and the data is transmitted. As a result, the portable terminal 22 receives the data at step 12 and displays the data on the display unit 39 at step 13.

Therefore, the user can know today's door opening average time and the number of door opening / closing times and the total door opening / closing time in this embodiment by looking at the display unit 39. The power saving action will be promoted by taking care to reduce the average time.

  This door opening average time is directly related to the start-up operation of the compressor as described above. By shortening this door opening average time, the operation time of the compressor can be surely reduced, and an accurate power-saving behavior is achieved. The energy-saving effect is improved. Particularly in the case of a freezer room or a vegetable room equipped with a drawer-type door, it can be linked to a large energy saving effect. That is, in the case of this drawer-type door storage room, as described in the prior art, by opening the drawer-type door, all the food in the freezer compartment and the vegetable compartment is drawn out to the outside of the refrigerator, exposed, and opened for a long time. If this is the case, the cooling load will increase greatly, for example, the outside warm air will flow into the drawn freezer compartment or vegetable compartment and the food temperature will rise. As a result, not only the compressor starts but also the compressor driving time becomes longer and power consumption increases on the contrary, but according to the present invention, the one-time door opening time is notified. Therefore, the user takes an action to shorten the door opening time once, and as a result, the power saving effect is increased and the energy saving performance is greatly improved.

  In addition, the user's power-saving behavior tends to take the action of shortening the door opening time per time, so the user can promote power-saving without forcibly reducing food retrieval opportunities and improve usability. Energy conservation can be achieved while maintaining.

  Moreover, in this embodiment, since the door opening / closing frequency storage unit 25 displays the door opening / closing frequency stored together with the door opening average time, the user can know the door opening / closing frequency simultaneously with the door opening average time. Thus, it is possible to promote the user's power saving action in the direction of reducing the number of times the door is opened and closed, and energy saving can be further improved.

  In addition, since the door opening accumulated time from the door opening time storage unit 27 is displayed together with the door opening average time and the number of times of opening and closing the door, the user can know the door opening accumulated time per day, and the door opening accumulated time. Power saving behavior will be taken in the direction of reducing the energy consumption itself, and energy savings can be further improved.

  Further, in this embodiment, the previous day data storage unit 30 for storing the door opening average time of the previous day is provided, and the display unit 39 displays the door opening average time in comparison with the previous day. Compared to the previous day, it is possible to know more accurately, and it can be linked more reliably to power saving behavior, and energy saving can be promoted.

  Since the display by the display unit 39 displays either one or both of the above door opening / closing count / door opening cumulative time or both at the same time, either one of the door opening average time and the door opening / closing count / door opening cumulative time is displayed. Or both can be known accurately compared with the previous day, and the door opening average time can be more reliably linked to the power saving action than when the door opening average time is displayed alone, and energy saving can be promoted.

  Furthermore, in this embodiment, a communication system is constructed by the wireless transmission / reception unit 21 capable of short-range data communication with the portable terminal 22 provided with the display unit 39 such as a mobile phone, and the display unit 39 of the portable terminal 22 is opened. Since the average time is displayed, the user can know the door opening average time etc. on the display unit 39 of the mobile terminal 22 by bringing the mobile terminal 22 such as a mobile phone close to the wireless transmission / reception unit 21. On the refrigerator side, the display device can be abolished, and the use of display power such as the number of times of opening and closing the door itself can be reduced, that is, the power consumption of the refrigerator itself can be further suppressed.

In addition, in the above-described embodiment, only when the proximity communication detection unit 31 is provided on the refrigerator side and the proximity communication detection unit 31 detects that the data is requested, the wireless transmission / reception unit 21 generates data and transmits data. The wireless transmission / reception unit 21 does not consume power, and energy can be further saved accordingly.

  The mobile terminal 22 is configured to be communicable with the Internet line, and is configured to display the door opening average time on a terminal such as a personal computer connected to the Internet line. You can check at least one of the number of door opening / closing times / door opening time, and call attention to your child and grandmother at home to save electricity.

  In addition, information such as the average door opening time and the number of door opening / closing times / door opening time captured via the mobile terminal 22 is stored in an Internet server, etc., and the average door opening time and the number of door opening / closing times / door opening of other households are stored. It can be displayed on the display unit 39 in a form compared with information such as time, displayed in a ranking, or displayed in comparison with past information.

  And since each said information can be accumulate | stored in the server etc. of the internet, it can implement | achieve, without increasing the memory capacity by the side of a refrigerator or complicating a control sequence.

  In addition, in the refrigerator of this embodiment, since the said radio | wireless transmission / reception part 21 is provided in the door of the storage chamber 2 used as the top of a refrigerator, ie, the uppermost door among several storage chambers, the door located in the lower part When the door above the door provided with the wireless transmission / reception unit 21 is opened, the cold air leaking down touches the wireless transmission / reception unit 21 to cause condensation on the surface, and the communication state It does not cause troubles such as deterioration and reduced component reliability.

  In addition, the wireless transmission / reception unit 21 is provided in a door corresponding to the refrigerator compartment 2 among a plurality of storage rooms, and the refrigerator compartment 2 has a higher internal temperature than the ice making compartment 3 and the freezer compartment 5. The influence of cold air can be reduced. Therefore, the temperature difference between the surface and the inside of the wireless transmission / reception unit 21 can be suppressed to be small, and it is possible to suppress the occurrence of dew condensation, and it is possible to reduce obstacles such as deterioration of communication state and deterioration of component reliability.

  Further, the wireless transmission / reception unit 21 is incorporated in the operation unit 18 provided at the end of the right door 11b, and this is wireless transmission / reception even if the posting of the posting to the door on a daily basis by the user is in the central portion of the door. There is little possibility of causing a communication failure by covering the surface of the unit 21, and reliable communication performance can be ensured.

  Moreover, the said wireless transmission / reception part 21 is provided in the right side door 11b with a large area of the storage room 2 made into a double doors, and can generate | occur | produce the failure | damage by the internal cold of the wireless transmission / reception part 21 more. That is, there are many relatively right-handed users, and the right door 11b is frequently opened and closed by the right-handed user. However, when the right door 11b opens and the cool air leaks out. The cold air has a high possibility of diffusing to the surface of the left door 11a opposite to the right door 11b, and the surface side of the right door 11b on the back side when viewed from the leaked cold air (the installation side of the wireless transmission / reception unit 21) There is very little possibility of going around. Accordingly, there is almost no possibility of cold coming into contact with the wireless transmission / reception unit 21 provided on the right door 11b, and it is possible to suppress troubles such as deterioration of communication state and deterioration of component reliability caused by condensation on the surface. can do. This is effective because more cold air leaks when a door with a large area is opened.

In addition, the right door 11b of the storage chamber 2 provided with the wireless transmission / reception unit 21 is provided with an automatic door opening / closing mechanism 17 correspondingly, and the wireless transmission / reception unit is located away from the handle 16; Since it is arranged at a position above the handle portion 16, even when the door is touched with a wet hand, the amount of water on the wet hand that adheres to the door is small, and it is away from the wireless transmission / reception unit. The wireless transmission / reception unit 21 is not wetted by water, and troubles such as deterioration of communication state and deterioration of component reliability can be further reduced.

(Embodiment 2)
FIG. 7 shows a second embodiment, and this embodiment further has a time zone dividing section 44 for dividing into a plurality of time zones based on the time output from the 24-hour clock 29, for example, breakfast, lunch, dinner. , Divided into four time zones at bedtime, each storage unit 25, 27, 28 stores the number of times of opening and closing the door, the total opening time of the door, the average door opening time for each time zone divided by the time zone dividing unit 44 I have to do it. For example, the time zone is set from 6:00 to 11:00 for breakfast, from 10:00 to 16:00 for lunch, from 16:00 to 23:00 for dinner, and from 23:00 to 6:00 for bedtime. However, this is only an example, and the time can be changed. In particular, if the user can set the time, the usability can be improved.

  According to the second embodiment, the user can accurately grasp the number of times the door is opened and closed, the total time of opening the door, and the average time of opening the door during the breakfast period, for example, as a user. During this breakfast period, you can know exactly whether the door opening / closing times, door opening cumulative time, door opening average time is long or short. Moreover, the number of times can be known in comparison with the previous day. In other words, since the data for the same time zone of the current day and the previous day is displayed, the user can accurately grasp the increase / decrease in the same time zone compared to the previous day, and can take power saving action more effectively. become.

(Embodiment 3)
FIG. 8 shows a third embodiment. In the third embodiment, the display unit 43 is provided on the door 11b of the refrigerator body 1, and other configurations are the same as those in the first embodiment, and the description thereof is omitted.

  Also in this second embodiment, as in the first embodiment, the user can know the door opening average time by looking at the display unit 43, and when the door opening average time is long, the subsequent door opening average Care will be taken to shorten the time and power saving action will be taken to promote energy saving.

  Of course, in the configuration of the second embodiment, the display unit 43 may be provided in the refrigerator main body as in the third embodiment.

  As described above, the refrigerator described in this embodiment can know the door opening average time directly connected to the operation of the compressor and can promote accurate energy saving, but is described in the above embodiment. Is an embodiment for realizing the present invention, and various modifications can be made within the scope of achieving the object of the present invention.

  For example, in the above-described embodiment, the notification for power saving enlightenment is performed by display, but this may be performed, for example, by voice or the like. Although both of the accumulated time are notified, the door opening / closing frequency and the door opening accumulated time may be either one.

  In each of the above embodiments, the wireless transmission / reception unit 21 has been described with only the transmission function. However, by using the reception function, for example, the set temperature data is transmitted to the wireless transmission / reception unit 21 from the mobile terminal 22 side to Developments such as making it possible to change the temperature are conceivable.

  Furthermore, as an example of utilizing the transmission / reception function, the door wireless transmission / reception unit may also be used as the door opening / closing detection unit, thereby simplifying the configuration. The door opening / closing detectors are preferably provided corresponding to all the doors, but may be provided, for example, at one or several doors with high opening / closing frequency.

  As described above, the refrigerator of the present invention notifies the user of information directly related to power saving and enables accurate power saving enlightenment, and the power saving action performed by the user is also accurate, thereby effectively saving power. It becomes possible, and it can be set as a highly energy-saving refrigerator, maintaining usability.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2,3,4,5,6 Storage room 2 Refrigeration room 7 Machine room 8 Compressor 9 Cooler 10 Cooling fan 11, 12, 13, 14, 15 Door 16 Hand part 17 Automatic door opening / closing mechanism 18 Operation Unit 19 Setting switch 20 Setting state display unit 21 Wireless transmission / reception unit 21a Antenna 22 Mobile terminal 23 Door opening / closing detection unit 24 Door opening / closing number counting unit 25 Door opening / closing number storage unit 26 Door opening time measurement unit 27 Door opening time storage unit 28 Door opening Average time storage unit 28a Door opening average time calculation unit 29 24-hour clock 30 Previous day data storage unit 30a Previous day data rewriting unit 31 Proximity communication detection unit 32 First communication unit 32a Antenna 34 Second communication unit 34a Antenna 35 First communication control unit 36 Second communication control unit 37 Display control unit 38 Mobile control unit 39 Display unit (notification means)
40 Operation part 41 Storage part 43 Display part (notification means)
44 Time zone division

Claims (8)

A refrigerator main body having a storage room, a door for opening / closing the storage room, a door opening / closing detection unit for detecting opening / closing of the door, and a door opening cumulative time detected by the door opening / closing detection unit by the number of times the door is opened / closed The door opening average time calculating unit for calculating the door opening average time and the notification means for notifying the door opening average time calculated by the door opening average time calculating unit, and the notification means notifies the door opening average time. Refrigerator. A door opening / closing door opening / closing number storage unit for storing the door opening / closing number of times detected by the door opening / closing detection unit is further provided, and the notification unit also notifies the door opening / closing number of times from the door opening / closing door opening / closing number storage unit together with the door opening / closing average time. Item 10. The refrigerator according to Item 1. A door opening accumulated door opening time storage unit for storing the door opening accumulated time detected by the door opening / closing detection unit is further provided, and the notifying unit calculates the door opening accumulated time from the door opening accumulated door opening time storing unit together with the door opening average time. The refrigerator according to claim 1 or 2, which is configured to notify also. The refrigerator according to any one of claims 1 to 3, further comprising a previous day data storage unit for storing the door opening average time of the previous day, wherein the notification means notifies the door opening average time by comparison with at least the previous day. The previous day data storage unit is configured to store one or both of the door opening / closing count / door opening cumulative time together with the door opening average time of the previous day, and the notification means at least compares the door opening average time and the door with the previous day. The refrigerator according to claim 4, wherein any one of the number of times of opening and closing / the total opening time of the door is notified. A time zone dividing unit that stores and memorizes at least the door opening and closing average time for each time zone, and the notification means notifies the door opening and closing average time that is divided and stored by the time zone dividing unit for each time zone; The refrigerator according to any one of claims 1 to 5. The output unit for outputting the door opening average time data is constituted by a wireless transmission / reception unit capable of short-range data communication with a mobile terminal equipped with a display unit such as a mobile phone, and the display unit of the mobile terminal is configured as the door opening average time. The refrigerator according to any one of claims 1 to 6, wherein the informing means is used. 8. The refrigerator according to claim 7, wherein the portable terminal is configured to be communicable with an Internet line, and the door opening average time is displayed on a terminal such as a personal computer connected to the Internet line.