JP5990769B2 - Refrigerator with RFID tag and manufacturing method thereof - Google Patents

Description

  The present invention relates to a refrigerator equipped with an RFID tag suitable for a service system using a communication network such as the Internet, and a manufacturing method thereof.

  In general, there is a system that improves the convenience of home appliances by exchanging information with home appliances via a communication network such as the Internet. For example, it is possible to connect a refrigerator to the Internet and transmit the details of the failure to a service provider so that accurate failure repair is possible (see, for example, Patent Document 1).

  The devices used in such a system are not limited to refrigerators, and other home appliances are often the same. And such devices are called so-called Internet home appliances. In recent years, with the development of communication infrastructure, it has become more and more widespread, and multiple home appliances in the home will be equipped with such communication functions. Is predicted.

JP 2002-295939 A

  As information on home appliances is being promoted as described above, devices commonly called white goods are used in daily life regardless of age or gender. Is done. That is, as long as a single refrigerator is only connected to the Internet, there is no problem in usability and the service can be fully enjoyed. However, when the computerization of home appliances spreads and multiple home appliances are connected to the Internet and become a service target, what kind of solid the target device shows in the bidirectional exchange of device information, such as children and the elderly Is difficult to understand and difficult to use. In addition, for example, when two refrigerators are held in the home, a problem that the temperature inside the refrigerator is set incorrectly can be predicted.

  Therefore, the present inventors have provided an RFID (Radio Frequency IDentification) tag for performing short-range communication with a device, and exchanges information directly by bringing a portable terminal such as a mobile phone having a short-range communication function close to the device. We have considered and demonstrated a system that provides various services by connecting information from a mobile terminal to a host computer via an Internet line.

  According to this system, even if there is a target selection for multiple home appliances, a mobile terminal must be brought in the vicinity of the device by touching the target home appliance main body at the time of communication. Can be intuitively understood without misunderstanding the target, can be used with confidence without being lost in operation, and is easy to use.

  It is necessary to write device information such as a model name and a part name for identifying the device in the RFID tag of the device used in such a system. Normally, such writing turns on the power of the device body. The information is sent from the refrigerator control unit to the RFID tag.

  However, in the refrigerator, when the power is turned on, the operation starts, and the cooling operation that is peculiar to the refrigerator starts.In particular, during the rainy season, condensation occurs, and dust in the air adheres to the condensation. As a result, troubles such as generation of odors occur, and it is necessary to remove them, resulting in a new problem that productivity is lowered.

  This invention is made in view of such a point, and it aims at providing the refrigerator which can write apparatus information, and its manufacturing method, without reducing productivity.

  In order to solve the above problems, a refrigerator according to the present invention includes a refrigerator main body having a refrigerator control unit that controls refrigeration operation, and an RFID tag for performing short-distance communication provided in a proper position of the refrigerator main body, Device information for specifying the refrigerator main body is written to the RFID tag, and device information can be written from the RFID tag to the refrigerator control unit when the refrigerator main body is turned on. It comprises a step of incorporating an RFID tag to complete a refrigerator and a step of writing device information of the refrigerator on the RFID tag of the refrigerator after completion of the refrigerator.

  As a result, information can be written to the refrigerator control unit without turning on the refrigerator on the production line. That is, the RFID tag can be brought closer to the portable terminal without the power of the refrigerator equipped with the RFID tag. Since it has the property that information can be written inductively, it is not necessary to turn on the refrigerator power supply on the production line, and thus it is possible to prevent problems such as condensation caused by turning on the power supply on the production line. When the power is turned on on the user side, the device information is written from the RFID tag to the refrigerator control unit of the refrigerator body and can be stored. Therefore, for example, if an RFID tag in which device information is written is provided on a part, information exchange can be performed between the part and the refrigerator control unit when the part is exchanged, and if there is a part mistake, the part is wrong. It is possible to prevent problems that occur when the battery is replaced without noticing.

  The present invention does not require the refrigerator power to be turned on for writing the device information, can prevent a decrease in productivity due to the power on, and can reliably write the device information in the refrigerator control unit. Can be performed accurately.

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 Exploded perspective view showing the operation unit of the refrigerator Front view showing the operation unit of the refrigerator Control block diagram showing a schematic configuration of a home appliance service system comprising the refrigerator and a portable terminal Flowchart explaining operation in the home appliance service system Process drawing showing the manufacturing method of the refrigerator

1st invention is equipped with the refrigerator main body which has the refrigerator control part which controls refrigeration operation, and the RFID tag for performing short-distance communication provided in the appropriate place of the said refrigerator main body, The apparatus information which specifies the said refrigerator main body Is a RFID tag-mounted refrigerator in which the device information can be written from the RFID tag to the refrigerator control unit when the refrigerator main body is turned on. And one door of the double doors has a configuration in which an RFID tag is provided only as a DC wiring without an AC wiring .

As a result, information can be written to the refrigerator control unit without turning on the refrigerator on the production line. That is, the RFID tag can be brought closer to the portable terminal without the power of the refrigerator equipped with the RFID tag. Since it has the property that information can be written inductively, it is not necessary to turn on the refrigerator power supply on the production line, and thus it is possible to prevent problems such as condensation caused by turning on the power supply on the production line. As a result, the device information can be written from the RFID tag to the refrigerator control unit of the refrigerator main body and stored in the refrigerator when the power is turned on at the user side. Therefore, for example, if an RFID tag in which device information is written is provided on a part, information exchange can be performed between the part and the refrigerator control unit when the part is exchanged, and if there is a part mistake, the part is wrong. It is possible to prevent problems that occur when the battery is replaced without noticing. In addition, one door of the Kannon type door has a configuration in which an RFID tag is provided only as a DC wiring without AC wiring, and the door provided with the RFID tag has no AC wiring even if there is a DC wiring to the RFID tag. The influence of noise generated from the AC wiring on the RFID tag can be reduced, and more accurate and reliable communication performance can be ensured.

  2nd this invention is equipped with the refrigerator main body which has several storage chambers, the door which opens and closes the said storage chamber, and the RFID tag which performs proximity distance communication, As said RFID tag was equipped with the top door. is there.

  Accordingly, it is possible to provide a highly reliable refrigerator by preventing a communication failure peculiar to the refrigerator or contamination of the mobile terminal, which is likely to occur due to spillage of moisture and dirt of the food at the time of taking in and out the food. That is, the problem of the refrigerator in the case where communication is performed by touching the mobile terminal is in the place where the RFID tag is provided. With conventional wireless devices, there was no problem even if it was out of reach or invisible, such as the back or top of the refrigerator, but it was intuitive at close distances to prevent mistakes with other home appliances In order to realize communication by a touching operation, it is essential to arrange an RFID tag in a reachable range from the viewpoint of ease of use, that is, in the front part of the refrigerator.

  However, when the RFID tag is disposed on the front surface of the refrigerator, water and dirt adhering to the hand are attached to the surface of the antenna mounting portion of the refrigerator main body tag in order to bring the hand holding the portable terminal close to the refrigerator main body. When the food is taken in and out, the food may be spilled with moisture and dirt, and may adhere to the surface of the refrigerator main body tag where the antenna is disposed, thereby deteriorating the communication state.

  Also, even if the hand is not soiled, when the mobile terminal itself, which is a precision device, or the hand holding the mobile terminal is placed close to the refrigerator body for communication, dirt and water on the refrigerator body will adhere to the hand. As a result, problems such as hindering the operation of the touch panel of the mobile terminal and making the screen difficult to see occur.

  However, in the refrigerator of the present invention, since the food part cannot be taken out from the storage room above the communication part by providing the communication part on the uppermost door, moisture or dirt drops and adheres at the time of taking out. There is nothing.

  In addition, when the refrigerator is opened and closed, the cool air in the refrigerator flows out to the outside, and the cool air spills onto the door at the bottom of the opened door, and the temperature is lowered. If the temperature of the surface of the RFID tag provided on the door falls below the dew point due to cold air leakage, condensation may occur and radio waves may be hindered by moisture, which may cause problems. Therefore, the storage door above the RFID tag cannot be opened and closed, the temperature of the RFID tag does not decrease, and there is no fear of communication failure due to condensation.

  This is particularly effective in a layout in which a freezer compartment having a low internal temperature is arranged at the top, since the temperature of the leaked cold air is low and the door temperature at the bottom tends to decrease.

In addition, the communication operation of the terminal for short-range communication needs to be close to the home appliance, but the terminal itself or the hand held may get dirt or moisture from the refrigerator, causing malfunction of the touch panel of the mobile terminal. However, it is possible to prevent the problem that the screen is difficult to see and the quality of the terminal from being adversely affected by suppressing the dirt and moisture from adhering to the communication unit.

  Furthermore, information on the refrigerator side, for example, the number of times of opening and closing the door can be obtained by displaying the information on the display unit of the portable terminal, and the use of display power as in the case where the display unit is provided on the refrigerator main body side can be reduced.

  According to a third invention, the RFID tag of the second invention is provided on a door that opens and closes a refrigeration room among a plurality of storage rooms, and the temperature of the surface and the inner surface of the RFID tag is higher than that provided in a freezing room or the like. It is possible to suppress the occurrence of dew condensation by reducing the difference, and it is possible to further reduce troubles such as deterioration of communication state and deterioration of component reliability.

In the fourth aspect of the invention, the RFID tag of the first to third aspects of the invention is provided at the end of the door. Even if there is a sticking of a posting to the door on a daily basis by the user, the influence is exerted. There is less risk of receiving and secure communication can be ensured.

In the fifth invention, the Kannon doors of the first to fourth inventions are configured such that one of them has an asymmetric shape having a larger area than the other, and an RFID tag is provided on the door having this large area. In addition to the frequency of door opening and closing being increased, the amount of cool air that leaks increases, so that the effect of suppressing the adverse effects on the RFID tag due to the cool air that leaks as described in the fifth invention is enhanced, and the communication state Failures such as deterioration of components and deterioration of component reliability can be reduced.

According to a sixth aspect of the present invention, an automatic door opening / closing mechanism is provided on at least one of the doors for opening / closing the storage chamber according to the first to fifth aspects, and an RFID tag is provided on the door provided with the automatic door opening / closing mechanism. Yes, even if the user's hand working in the kitchen is wet with water, the interference of the RFID tag due to the water can be reduced. In other words, since the user only needs to touch the door lightly, a very small amount of water droplets adhere to the door surface when the door is opened and closed, and the door surface is brought into contact with a portable terminal such as a mobile phone close to the RFID tag. Water droplets adhering to the RFID tag itself or a mobile terminal approaching the RFID tag can be prevented from being contaminated or wetted, and troubles such as deterioration in communication status and component reliability can be prevented. Can be less.

In a seventh invention, the door of the first to sixth inventions has a handle portion for opening the door, and an RFID tag is arranged apart from the handle portion, and the RFID tag is a handle portion. Even if the user's hand is wet and the door is opened with this hand and water droplets adhere to the handle, the RFID tag is separated from the handle. Since it is located above the handle portion, water droplets adhering to the handle portion do not spread left and right or fall down and reach the RFID tag placement portion. Therefore, as described in the ninth invention, Even when a mobile terminal such as a mobile phone is brought close to the RFID tag, it is possible to prevent a problem that the RFID tag itself or the mobile terminal is soiled or wet with water droplets adhering to the surface of the handle of the door. Deterioration or low component reliability It is possible to further reduce the failure and the like.

The eighth invention comprises a step of incorporating an RFID tag into the refrigerator to complete the refrigerator, and a step of writing the device information of the refrigerator into the RFID tag of the refrigerator without turning on the power after completion of the refrigerator. , The RFID tag is assembled in the refrigerator, each part is assembled to complete the refrigerator, the completed refrigerator is turned on and inspected, and the manufacturing display label is attached to the refrigerator after the inspection is completed. It is a manufacturing method that enables continuous serial number assignment when writing device information of the refrigerator to the RFID tag, and can prevent troubles such as condensation caused by turning on the refrigerator power supply in the production line, resulting in a decrease in productivity. it is no longer able to lead to, along with the stick manufacturing display label after the completion inspection, By writing the equipment information of the refrigerator on the FID tag, for example, by attaching a manufacturing display label and writing the equipment information on the RFID tag and then inspecting the finished product. It is also possible to solve the problem that a vacant number is generated in the production number, and that complicated product management remains after that.

  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)
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 front view showing an operation unit of the refrigerator, FIG. 6 is a control block diagram showing a schematic configuration of a home appliance service system including the refrigerator and a portable terminal, and FIG. 7 is the home appliance service system. FIG. 8 is a process chart showing a method for manufacturing a refrigerator.

  In the figure, reference numeral 1 denotes a refrigerator body, which is provided with 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, Similar to the refrigerator body 1, a hard urethane foam 1c is filled and foamed in a sealed interior with a metal surface plate and an inner box plate made of ABS resin or the like.

  In the refrigerator of this embodiment, the door of the refrigerator compartment 2 located at the uppermost part is a double door, and is composed of two doors 11a and 11b having different left and right areas. The right door 11b having a large area is configured to be opened simply by lightly pushing the door surface by the automatic door opening / closing mechanism 17, and the opening / closing is detected by a door opening / closing detection unit (not shown). Further, an operation unit 18 is provided at the end of the right door 11b in the vertical direction, and direct current wiring for supplying power and transmitting control signals to the operation unit 18 is provided, and the alternating current wiring is connected to the right door. It is given to left door 11a, without arranging 11b.

  Here, as shown in FIG. 4, the operation unit 18 includes a resin operation name plate 18a provided in the vertical direction of the outer surface of the end of the door 11b, and a resin substrate housing located inside the operation name plate 18a. Section 18b, a first board 18c that is positioned further inside the board storage section 18b and that faces a display section and switches described later on the inner surface of the operation nameplate 18a, and an RFID tag 21 that is the subject of the present invention. The RFID tag 21 includes a second substrate 18d facing the inner surface portion of the operation nameplate 18a. Since the RFID tag 21 is covered with a resin material, it is possible to prevent the influence of power transmission due to metal. In addition, even if the door is made of a glass material instead of a metal and the operation unit is closely arranged inside the glass, the influence of the radio wave due to the metal material can be prevented.

  The RFID tag 21 is registered with an ID number for identifying the product, and the individual product can be identified by transmitting and receiving the ID number. Of course, the RFID tag 21 obtains information such as the cooling set temperature, the number of times of opening / closing the door, or the total opening time of the door as information during use of the refrigerator from the refrigerator control unit. To send and receive externally.

  As shown in FIG. 5, the RFID tag 21 includes a temperature setting electrostatic touch setting switch 19 provided in the operation unit 18 and a setting state display unit 20 disposed above the setting switch 19. As shown in FIG. 1, when a user brings a mobile terminal 22 such as a mobile phone, a smartphone, or a PDA close to the mobile terminal 22, the information is exchanged with the mobile terminal 22, and the information is transferred to the mobile terminal. The home appliance service system is configured to display on a display unit 22 (not shown in FIG. 1) or transmit / receive to / from a service provider's host computer via the Internet line. In this embodiment, the RFID tag 21 is of a passive tag type and a proximity type with a communication distance of 100 mm or less.

Hereinafter, the configuration of the home appliance service system will be described with reference to FIGS. FIG. 6 is a control block diagram showing a schematic configuration of the home appliance service system, and FIG.

  In FIG. 6, the refrigerator control unit A includes a door opening / closing detection unit 25 that detects opening / closing of the door 11, a counting unit 26 that counts the number of times the door is opened / closed detected by the door opening / closing detection unit 25, A number storage unit 27 for storing the number of times, a time measuring unit 28 for measuring a door opening time when the door is opened and closed detected by the door opening / closing detection unit 25, a time storage unit 29 for cumulatively storing the time measured by the time measuring unit 28, and An RFID tag 21 is provided.

  As described above, an ID number is written and stored in the RFID tag 21. As will be described in detail later, the ID number is written and stored in the ID number storage unit 30 of the refrigerator control unit A. ing. In this embodiment, the RFID tag 21 also serves as an output unit for the door opening / closing number information from the number storage unit 27 and the door opening accumulated time information from the time storage unit 29, and the antenna unit 21a is integrated. An IC chip or the like is used.

  Reference numeral 31 denotes a short-range communication detection unit that detects when a mobile terminal 22 such as a mobile phone, a smartphone, or a PDA approaches and requests information, and the RFID tag 21 itself is provided. It is designed to operate by supplying power. Therefore, when the portable terminal 22 approaches and requests information, the RFID tag 21 is activated by the short-range communication detection unit 31, and the latest door opening / closing stored in the ID number, the number-of-times storage unit 27, and the time storage unit 29 is performed. Information such as the number of times and the total door opening time is transmitted from the antenna unit 21a to the outside.

  On the other hand, the mobile terminal 22 uses a general mobile phone having a communication function, and its terminal control unit B has a first communication unit 32 that performs short-distance communication and its antenna 33 as well known for communication and Internet communication. The second communication unit 34 and its antenna 34a, the first and second communication control units 35 and 36 that control these communication units, the portable control unit 38 including the display control unit 37, the display unit 39 such as a liquid crystal display, It includes an operation unit 40 such as a touch switch, a storage unit 41, and the like. And when this portable terminal 22 switches to the short distance communication by the 1st communication control part 35 by operation of the operation part 40, while transmitting an information request signal to the other party and receiving the information from the other party, 2nd communication By operating the unit 34, the necessary information can be received by transmitting the information to the host computer of the service provider via the Internet line. At this time, in the present embodiment, the display control unit 37 can switch the display of the display unit 39 and display the information received by the first communication unit 32 on the display unit 39.

  Next, the manufacturing method of the refrigerator which mounts such an RFID tag 21 is demonstrated using FIG. In FIG. 8, first, in step 11, the components are assembled as in the conventional case, and the refrigerator is assembled. At the time of assembling the components, the RFID tag 21 is also assembled to complete the refrigerator. Then, in step 12, the refrigerator is turned on. Perform finished product inspection. After completion of the inspection, step 14 completes the step 14 of attaching the manufacturing display label to a normal refrigerator to complete the refrigerator.

  Thereafter, in step 15, the refrigerator device information is written in the RFID tag 21. In this case, by bringing the dedicated terminal close to the RFID tag 21, the unique information is transmitted and written from the dedicated terminal to the RFID tag 21.

Through the above process, the refrigerator is completed and shipped. Then, when the user purchases the product and turns on the power of the refrigerator to start use, the ID number storage unit 30 of the refrigerator control unit A and the RFID tag 21 start transmitting / receiving and the ID number written in the RFID tag 21 is It is written in the ID number storage unit 30 and stored. That is, at the time of shipment, the ID number is written only in the RFID tag 21 and not in the refrigerator control unit A, but the ID number is written only when the user purchases the refrigerator and turns on the power. Complete.

  Therefore, it is not necessary to turn on the refrigerator power and write the ID number to the RFID tag 21 in the production process as in the past, such as dew condensation caused by the refrigerator operation for writing such an ID number. Thus, it is possible to prevent the failure of productivity.

  Also, in view of manufacturing and assembly of refrigerators, there are many parts shared in the product lineup such as different colors and sizes, and the ID number is written on the RFID tag 21 in the state of the parts before the product is completed. If the part is different from the regular part, it becomes a big problem. However, in the present invention, the product individual information such as the ID number is written and confirmed after completion of the assembly as described above. Can be prevented.

  The step of completing the refrigerator first completes the refrigerator by incorporating the RFID tag 21 into the refrigerator, and then inspects the refrigerator by turning on the power. The manufacturing label is attached to the refrigerator that has passed the inspection, and the RFID tag 21 Since the device-specific information of the refrigerator is written in, the manufacturing number is assigned only to the refrigerator that has passed the inspection. For example, the manufacturing display label is attached and the device information is written in the RFID tag 21, and then the finished product inspection is performed. As in the case of a product, a rejected product is found in the final inspection and eliminated, so that it is possible to prevent a problem that a vacant number is generated in the manufacturing number and the subsequent product management becomes complicated.

  In addition, when the power is turned on at the time of finished product inspection, the refrigerator performs the cooling operation in the same manner as described in the conventional example, so that condensation occurs or dust adheres to the condensation and causes odor, so that these are removed. Although work is required, such work is performed before the RFID tag is used, and is not a process newly generated by using the RFID tag, and does not reduce productivity.

  On the other hand, in the RFID tag-mounted refrigerator configured as described above, device information is written and stored from the RFID tag 21 to the refrigerator control unit A of the refrigerator body 1 when the user turns on the power. Therefore, when a part replacement is necessary due to a part failure or the like, if the user brings the mobile terminal 22 close to the RFID tag 21, an ID number that is unique information such as a product number of the refrigerator is received. Thus, information can be transmitted to the service provider through the Internet line via the portable terminal.

  Hereinafter, a specific description will be given focusing on transmission and reception between the RFID tag 21 and the portable terminal 22 using the control flow of FIG. First, in the state where the ID number is stored and held in the RFID tag 21 as shown in step 1, it is checked in step 3 whether or not the short-range communication detection unit 31 has requested information. 1 day (24h) is checked, and if it has not passed, the process returns to step 2; if it has passed, the door opening / closing information stored in step 2 until then is reset in step 5; Return to 2.

In this state, when the user transmits an information request signal by bringing the antenna 33 portion of the portable terminal 22 close to the RFID tag 21 of the refrigerator door (step 6), the short-range communication detection unit 31 detects this in step 3. The RFID tag 21 starts to operate, and the RFID tag 21 opens and closes the ID number in step 7 and the door opening / closing times such as the door opening / closing times and the door opening accumulated time stored in the number storage unit 27 and the time storage unit 29 in this embodiment. Information is acquired and transmitted in step 8. Thereby, the portable terminal 22 receives the information at step 9 and transmits the information to the server (host computer) of the service provider via the Internet line at step 10 or displays it on the display unit 39.

  As described above, the refrigerator in this embodiment obtains information by directly bringing the mobile terminal 22 close to the refrigerator itself that is the target device. Therefore, even an elderly person or a child is an ID that is unique device information such as a product number. The number can be received and transmitted to a service provider or the like without making a mistake so that an accurate repair service can be received.

  Further, since the RFID tag 21 has a receiving function, it is possible to prevent a case where a service provider replaces a component without noticing a component mistake. For example, if an RFID tag 21 in which device information is written is also provided for a component, information exchange is performed between the component and the ID number storage unit 30 of the refrigerator control unit A when the component is replaced. , You can be sure of the component mistakes that are likely to occur due to a mistake in the display label attached to the component, and prevent the occurrence of problems by replacing the component without noticing the mistake. be able to.

  Furthermore, in this embodiment, it is important to prevent data loss or mistakes such as ID numbers, which are device information, from occurring during replacement of parts provided with the RFID tag 21, but in this refrigerator, device information Since the ID number and the like are written and stored in the ID number storage unit 30 of the refrigerator control unit A from the RFID tag 21 when the refrigerator is turned on, it is possible to prepare for the loss of the device information of the individual product.

  In addition, in this embodiment, the user is caused to bring the portable terminal 22 close to the RFID tag 21, and, for example, set temperature information for cooling is transmitted to the portable terminal 22 using the Internet line, and the set temperature information is If it is transmitted from the portable terminal 22 to the RFID tag 21, the RFID tag 21 receives it and transmits it to the refrigerator control unit A to change the set temperature for cooling.

  In addition, the content of the service can be expanded by transmitting the device information of the individual product to the service provider's server via the portable terminal 22. For example, services such as storing the operation status and history of individual products in the server based on the refrigerator operation information transmitted from the mobile terminal 22 and notifying the operation status and history via the mobile terminal are possible. In addition, the individual product can be identified and the operation status data for each product can be managed and viewed. For example, comparison with the usage of individual products in other households, power saving ranking, comparison with past usage status, etc. This service is also possible.

  Further, in order to ensure the traceability of the product at the time of service, it is necessary to identify the individual product, but since such individual identification is also stored in the ID number storage unit 30 of the refrigerator control unit A, Device information can be collated by communication with the terminal 22 and the individual product can be identified without fail.

  By the way, in the refrigerator of this embodiment, it is possible to know door opening / closing information such as the number of times of opening and closing the door and the total opening time of the door by looking at the display unit 39 of the portable terminal 22. It is possible to promote power saving by taking care to reduce the number of times of opening and closing. In addition, the refrigerator does not require display power for notifying the user of the number of times the door is opened and closed, the total time of opening the door, and the like, so that power can be further saved and energy saving of the refrigerator is improved. That is, since this refrigerator can know the door opening / closing count and the door opening cumulative time via the display unit 39 of the portable terminal 22, the refrigerator itself uses electric power for displaying the door opening / closing count and the door opening cumulative time. There will be no consumption at all, and energy saving will proceed accordingly.

Furthermore, in this embodiment, since the short-range communication detection unit 31 is provided on the refrigerator side and the short-range communication detection unit 31 detects that information is requested, the RFID tag 21 is fed to transmit information. Further, when there is no information request, the RFID tag 21 does not consume power, and energy can be further saved.

  Further, in the refrigerator of this embodiment, the RFID tag 21 is provided on the door of the refrigerator compartment 2 that is the top of the refrigerator, that is, the uppermost door of the plurality of storage rooms, and therefore provided on the door located at the bottom. When the door above the door provided with the RFID tag 21 is opened, the cold air leaking down touches the RFID tag 21 to cause dew condensation on the surface, thereby deteriorating the communication state and component reliability. It does not cause problems such as decline in sex. Therefore, the door opening / closing frequency or time can be exchanged accurately and surely with the portable terminal 22, and a high-quality refrigerator can be obtained and the user can use it with peace of mind.

  In addition, if the RFID tag 21 is provided in a height range of 900 mm or more and 1500 mm or less from the lower end of the refrigerator body 1, a portable terminal can be used without taking an unreasonable posture such as crouching for a general housewife. 22 can be brought close to the RFID tag 21. In addition, at that time, the mobile terminal 22 can be brought close to the RFID tag 21 while viewing the display unit 39 of the mobile terminal 22. Therefore, usability is improved.

  Further, the RFID tag 21 is provided on a door corresponding to the refrigerator compartment 2 among a plurality of storage compartments, and the refrigerator compartment 2 has a higher internal temperature than the ice making compartment 3 and the freezer compartment 5. Can reduce the influence of. Therefore, the temperature difference between the surface and the inside of the RFID tag 21 can be suppressed to be small, and it is possible to suppress the occurrence of dew condensation, and it is possible to reduce troubles such as deterioration of communication state and deterioration of component reliability.

  Further, the RFID tag 21 is incorporated in the operation unit 18 provided at the end of the right door 11b, and even if a user sticks a posting to the door on a daily basis, the sticking is at the center of the door. In many cases, the surface of the RFID tag 21 located at the end of the door is rarely covered. Therefore, the user can directly face and approach the RFID tag 21 of the portable terminal 22, and information transmission / reception errors caused by bringing the portable terminal 22 close to the posted object are reduced, and the posted object that covers the surface of the RFID tag 21. It is not necessary to move the mobile terminal closer to paying off, ensuring reliable communication performance and improving usability.

  Further, the RFID tag 21 is provided on the right door 11b of the refrigerator compartment 2 as a double door, so that the occurrence of troubles due to the cool air inside the RFID tag 21 can be reduced. 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, up to the surface side of the right door 11b (the installation side of the RFID tag 21) on the back side as seen from the leaked cold air. There is very little possibility of going around. Therefore, there is almost no possibility of cold coming into contact with the RFID tag 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. be able to.

  In particular, in this embodiment, since the right door 11b has a larger area than the left door 11a, the amount of cold air that tends to leak tends to increase, so the right door 11b on the side where this cold air leaks increases. By providing the RFID tag 21 on the side, the influence of the above-mentioned cold air is small, and there is less risk of deterioration of the communication state and part reliability, which is effective.

In addition, the door provided with the RFID tag 21 is provided with wiring for sending door opening / closing information from the number storage unit 27 and the time storage unit 29 in the refrigerator control unit A together with wiring to the operation unit 18. All are DC wiring, and no AC wiring is provided on the door, so that noise generated from the AC wiring does not hinder the transmission of the RFID tag 21 and ensures more accurate and reliable communication performance. it can.

  Further, the right door 11b of the refrigerator compartment 2 provided with the RFID tag 21 is provided with an automatic door opening / closing mechanism 17 corresponding thereto, so that even if the user's hand working in the kitchen is wet with water, The obstacle of the RFID tag due to water can be reduced. That is, since the user only needs to touch the door lightly, water droplets attached to the door surface when the door is opened or closed are in a very small amount or not attached, and when the portable terminal 22 such as a mobile phone is brought close to the RFID tag 21, Water droplets adhering to the door surface can adhere to the RFID tag 21 itself or the portable terminal 22 approaching the RFID tag 21 to prevent the problem of soiling or getting wet, thereby preventing deterioration of communication state and component reliability. Obstacles such as decline in sex can be reduced.

  Further, since the RFID tag 21 is located away from the handle portion 16 provided on the door and is positioned above the handle portion 16, the user's hand is wet and this hand is used. Even if the door is opened and water droplets adhere to the handle portion 16, the RFID tag 21 is separated from the handle portion 16 and is located above the handle portion 16, so that it adheres to the handle portion 16. Even if the water drops spread left and right or sag, the RFID tag 21 is not disposed. Therefore, even if the portable terminal 22 approaches the RFID tag 21 as described above, It is possible to prevent problems such as the RFID tag 21 itself or the mobile terminal 22 approaching the RFID tag 21 being soiled or wetted by water droplets adhering to the surface of the unit 16, such as deterioration of communication state or deterioration of component reliability. It is possible to further reduce the harm.

  As described above, the refrigerator described in this embodiment can provide an RFID tag-mounted refrigerator without incurring a decrease in productivity. However, what has been described in the above embodiment realizes the present invention. It is a form, and various modifications can be made within the scope of the object of the present invention.

  For example, in the above embodiment, the refrigerator information provided to the user is both the door opening / closing frequency and the cumulative door opening time for power saving enlightenment, but this may be either one or the other It may be a thing.

  Although the RFID tag 21 is provided on the door of the refrigerator compartment 2, it may be provided on another door, for example, on the left door 11a of the kannon door, or on the left door 11a. In this case, when the user is right-handed, the right-hand door is easy to open and close with the dominant hand without being reversed, so that the mobile terminal 22 can be brought close to the RFID tag 21 with the left hand simultaneously with the right-hand door opening and closing. Will improve.

  Furthermore, a transmission / reception unit is provided on the refrigerator main body side corresponding to the RFID tag provided on the door, and when the door is opened, the transmission / reception unit on the refrigerator main body side detects this, that is, the RFID tag on the door detects the door open / close detection unit. It is good also as a structure which serves as both, and can simplify a structure by this. 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.

  It is also conceivable to receive the door opening / closing frequency information and door opening accumulated time information from the refrigerator control unit A by short-range communication instead of wiring.

  As for the communication method, other short-distance wireless communication may be used as long as it can be discriminated by limiting the target by touching or holding the product.

  As described above, the present invention does not require the refrigerator power to be turned on for writing the device information, can prevent a decrease in productivity due to the power on, and can reliably write the device information in the refrigerator control unit. It is possible to perform various services accurately and can be widely deployed for home and business use.

1 Refrigerator body 2 Refrigerated room (storage room)
3 Ice making room (storage room)
4 switching room (storage room)
5 Freezing room (storage room)
6 Vegetable room (storage room)
7 Machine room 8 Compressor 9 Cooler 10 Cooling fan 11, 12, 13, 14, 15 Door 16 Handle part 17 Automatic door opening / closing mechanism 18 Operation unit 19 Setting switch 20 Setting state display part 21 RFID tag 21a Antenna part 22 Carrying Terminal 25 Door opening / closing detection unit 26 Count unit 27 Count storage unit 28 Timekeeping unit 29 Time storage unit 33, 34a Antenna 30 ID number storage unit 31 Short-range communication detection unit 32 First communication unit 34 Second communication unit 35 First communication control Unit 36 second communication control unit 37 display control unit 38 portable control unit 39 display unit 40 operation unit 41 storage unit A refrigerator control unit B terminal control unit

Claims (8)

A refrigerator main body having a refrigerator control unit for controlling the refrigeration operation, and an RFID tag for performing short-range communication provided at an appropriate position of the refrigerator main body, device information for specifying the refrigerator main body is written in the RFID tag, In the RFID tag-mounted refrigerator configured to be able to write device information from the RFID tag to the refrigerator control unit when the refrigerator body is turned on, at least one of the doors for opening and closing the storage chamber is a double door, and the double door One RFID door is a refrigerator equipped with an RFID tag in which an RFID tag is provided only for DC wiring without AC wiring . The refrigerator equipped with an RFID tag according to claim 1, wherein the RFID tag is provided on an uppermost door. The RFID tag-mounted refrigerator according to claim 2, wherein the RFID tag is provided on a door that opens and closes the refrigerator compartment. The RFID tag-mounted refrigerator according to claim 2 or 3, wherein the RFID tag is provided at an end of the door. The RFID tag according to any one of claims 1 to 4 , wherein one of the doors of the Kannon type has an asymmetric shape having a larger area than the other, and an RFID tag is provided on the door having the larger area. On-board refrigerator. The refrigerator equipped with an RFID tag according to any one of claims 1 to 5 , wherein an automatic door opening / closing mechanism is provided on at least one of the doors for opening and closing the storage chamber, and an RFID tag is provided on the door provided with the automatic door opening / closing mechanism. . The door has a handle portion for opening the door, and the RFID tag is disposed apart from the handle portion, and the RFID tag is disposed at a position above the handle portion. The refrigerator equipped with an RFID tag according to any one of 1 to 6 . A step to complete the refrigerator incorporating the RFID tag in the refrigerator, Ri Na <br/> and a step of writing a refrigerator device information to the refrigerator of the RFID tag without power on after the refrigerator completion step of completing the refrigerator , The RFID tag is assembled in the refrigerator, each part is assembled to complete the refrigerator, the completed refrigerator is turned on and inspected, and the manufacturing display label is attached to the refrigerator after the inspection is completed. A manufacturing method of a refrigerator equipped with an RFID tag , characterized in that a continuous production number can be assigned when writing device information of the refrigerator to the RFID tag.