JP6403314B2 - ELECTRIC INSULATION AND COOLING CONTAINER USING WIRELESS POWER TRANSFER, ELECTRIC INSULATION AND COOLING DEVICE USING THE SAME - Google Patents

Description

  The present invention relates to an electric heat-retaining container that uses wireless power feeding to retain a high-temperature liquid such as coffee or to retain a low-temperature liquid such as cold water.

  For example, there is a demand to keep coffee poured in a cup warm, and a cup having a vacuum double structure in which a vacuum layer is provided around the cup is used. However, in a container that does not have heating means, it will eventually cool over time. For this reason, it is conceivable to provide a heating means such as an electric heater in the container. However, when an electric cord for feeding is attached to the container, the electric cord becomes an obstacle and it becomes difficult to handle the container. Moreover, when an electric cord is attached, it becomes difficult to wash the container with water. Therefore, it has been proposed to wirelessly supply power to the heating means provided in the container.

  In FIG. 7 of Patent Document 1, as an electric heat insulation container using wireless power feeding, a power receiving coil and a charging circuit are provided on the container side provided with a heat exchange element for heating or cooling and a power storage element for storing electric power. In addition, a container that includes a charging unit having a power feeding circuit and a power feeding coil and charges the storage element with the induced voltage of the power receiving coil is described.

JP 2007-312932 A

  An electric thermal insulation container using wireless power feeding described in Patent Document 1 is a portable or portable storage element that stores power in order to provide a container that can be insulated or cooled whenever and wherever you like Built in. In general, the power storage element is heavy and has a large shape, so that the weight of the heat insulating container is increased and the shape is also increased. Further, in the heat insulating and cold holding container described in Patent Document 1, the heat exchange element for heating or cooling is disposed at the bottom of the container, and the liquid in the container, particularly the liquid in the upper part of the container cannot be sufficiently kept warm. Furthermore, Patent Document 1 only describes a conceptual diagram of a heat and cold container using wireless power feeding, and does not describe a specific shape and structure of the heat and cold container.

  An object of the present invention is to provide a heat and cold insulation container using wireless power feeding that is light in weight, does not increase in shape, and can sufficiently retain or cool a liquid contained therein.

  In order to solve the above-described problems, an example of an electric heat insulation and cooling container according to the present invention is an electric heat insulation and cooling container that includes a power receiving coil and a heat exchange element and uses wireless power feeding, An outer container and a bottom lid, the power receiving coil is disposed at the bottom of the container, and the planar heat exchange element is disposed on a side surface of the inner container so as to surround the inner container. It is characterized by this.

  In the electric thermal insulation container of the present invention, it is preferable that the planar heat exchange element is attached to the lower side of the side surface of the inner container so as to surround the inner container.

  Further, in the electric insulated container of the present invention, a mounting bracket is fixed to the bottom of the inner container, a circuit board is attached to the mounting bracket via a heat dissipation sheet, and further, to the mounting bracket, It is preferable that a coil holder to which the power receiving coil is attached is attached.

  Further, in the electric insulated container of the present invention, the inner container and the outer container are sealed by an upper packing at their upper parts, and the bottom lid and the outer container are at the lower part of the outer container, It is preferable to be sealed with the lower packing.

  Moreover, in the electric heat insulating cool container of the present invention, it is preferable that a thermostat or a thermistor is attached to the surface of the heat exchange element.

  Moreover, the electric heat insulation cold container of this invention WHEREIN: The said heat exchange element may be a planar heater or a Peltier element.

  Moreover, in the electric type heat insulation and cooling container of the present invention, the container may be a cup or a tumbler.

  If an example of the electric heat insulation cooler of this invention is given, it will have said electric heat insulation cold container, a power feeding side control part, a power feeding stand which has a power transmission coil, and sends electric power to the said power receiving coil by electromagnetic induction. It uses wireless power feeding.

  Further, in the electric heat insulation and cold insulation device of the present invention, a Peltier element is used as the heat exchange element, a heat insulation and cold insulation changeover switch is provided in the power supply base, a switching control signal is generated, and the power transmission coil and the The switching control signal is transmitted to the container side via a power receiving coil, and heating and cooling of the Peltier element are switched by the power receiving side control unit of the electric type thermal insulation container based on the switching control signal. It is characterized by.

  An example of a method for manufacturing an electric heat insulation and cooling device according to the present invention is a method for producing an electric heat insulation and cooling vessel using wireless power feeding having a power receiving coil and a heat exchange element, and is attached to the bottom of the inner container. A step of attaching a circuit board to the mounting bracket via a heat dissipating sheet, a step of mounting a coil holder with the power receiving coil attached to the mounting bracket, and a side surface of the inner container. A heat exchange element in a shape surrounding the inner container to create an inner container assembly, a step of fitting an upper packing into the upper part of the outer container to create an outer container assembly, and a bottom lid A step of fitting a lower packing into the bottom lid assembly, and a step of fitting the outer container assembly into the inner container assembly, The inner container assembly and the outer container assembly are sealed, and the dowel of the bottom lid is fitted into the slit of the mounting bracket, and the bottom lid is rotated and fixed to the mounting bracket. And the step of sealing the outer container assembly and the bottom lid assembly with the lower packing.

  Moreover, in the method for manufacturing an electric insulated container using wireless power feeding according to the present invention, the planar heat exchange element is attached to the lower side of the inner container so as to surround the inner container. It is preferable.

  According to the present invention, since the planar heat exchange element is disposed and attached to the side surface of the inner container so as to surround the inner container, the heat conduction characteristics are good, and the liquid contained in the inner container is sufficient. Can be kept warm or cold. In addition, since a power storage element that stores electric power is not built in, it is possible to provide a warm and cool container that is lightweight and does not increase in shape. Furthermore, it is possible to provide a compact and easy-to-manufacture electric thermal insulation container using wireless power feeding.

1 is an overall perspective view of an electric heat retaining device using wireless power feeding according to the present invention. It is sectional drawing of the electric type heat retention cup of Example 1 of this invention. It is an exploded view of the electric type heat retention cup of Example 1 of this invention. It is a figure which shows the manufacturing method of the electrical insulation cup of Example 1 of this invention. It is a figure which shows the manufacturing method of the electrical insulation cup of Example 1 of this invention. It is a figure which shows the manufacturing method of the electrical insulation cup of Example 1 of this invention. It is an exploded view of the electric power feeding stand of this invention. (A) is a perspective view of the feed stand of this invention, (b) is sectional drawing. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an electrical block diagram of an electric heat insulation and cooling device of Example 1 of the present invention. It is a whole perspective view of the modification of the electric heat retention apparatus of this invention. It is a figure which shows the time change of the temperature of hot water of the electric type heat retention cup of Example 1 of this invention. It is an electrical block diagram of the electric type thermal insulation apparatus of Example 2 of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. Note that components having the same function are denoted by the same names and reference numerals in the drawings for describing the embodiments, and repetitive description thereof is omitted.

  In Example 1, for example, the present invention is applied to a heat retaining cup for storing coffee, tea, or the like.

  FIG. 1 is an overall perspective view of an electric heat retaining apparatus using wireless power feeding according to the first embodiment of the present invention. The electric heat retaining device includes an electric heat retaining cup 10 and a power supply base 50.

  FIG. 2 is a sectional view of the electric heat retaining cup 10 according to the first embodiment, and FIG. 3 is an exploded view of the electric heat retaining cup 10. The cup includes an inner cup 11, an outer cup 12, a bottom lid 13, a handle 14, an upper packing 16, and a lower packing 17 as a configuration as a container. The inner cup 11 is a portion into which a high-temperature liquid such as coffee is placed, and is made of a metal such as stainless steel, titanium, or copper. The outer cup 12 is a portion constituting the outside of the container, and is made of a sheet metal such as stainless steel or titanium, or a hard plastic. The upper packing 16 seals between the inner cup 11 and the outer cup at the upper part of the cup, and the lower packing 17 seals between the bottom lid 13 and the outer cup 12 at the lower part of the cup.

  An attachment fitting 21 is attached to the bottom of the inner cup 11 by spot welding or the like. A circuit board 23 is attached to the mounting bracket 21 via a heat dissipation sheet 22. By providing the heat dissipating sheet 22, the heat generated in the circuit board 23 can be dissipated. A coil holder 25 to which the power receiving coil 24 is attached is disposed below the circuit board 23, and the coil holder 25 is attached to the mounting bracket 21. Since the power receiving coil 24 generates heat during operation, it is preferable to provide a gap between the circuit board 23 and the power receiving coil 24. The power receiving coil 24 is constituted by a sheet coil, for example.

  A planar heater 27 is disposed and attached to the side surface of the inner cup 11 so as to surround the inner cup. As the planar heater 27, a film heater using a flexible substrate is used. There are methods such as fixing with a double-sided tape to attach the surface heater. The planar heater 27 is attached to the lower side of the inner cup 11.

  A thermostat 28 is attached to the planar heater 27. The thermostat 28 is cut at, for example, 80 ° C. and conducts at 65 ° C., and is connected to the circuit of the planar heater 27 in series to form a protection circuit (high temperature protection fuse) against overheating. Instead of the thermostat 28 or in addition to the thermostat 28, a temperature detection element such as a thermistor is provided, and the power receiving side control unit 72 in FIG. 7 controls the power supplied to the planar heater 27 according to the detected temperature. Thus, temperature control may be performed.

A method for manufacturing the electric heat retaining cup 10 of Example 1 will be described with reference to FIGS. 4A to 4C.
As shown to (a) of FIG. 4A, the attachment metal fitting 21 is attached to the bottom part of the inner side cup 11 by spot welding. Then, the heat dissipation sheet 22 is attached to the mounting bracket 21.
As shown in FIG. 4A (b), the circuit board 23 is placed on the heat radiation sheet 22, and the sheet metal is twisted and attached.
As shown in (c) of FIG. 4A, the power receiving coil 24 is attached to the coil holder 25.
As shown in FIG. 4A (d), the coil holder 25 is fixed to the mounting bracket 21 with screws. Further, a sheet heater 27 is wound around the side surface of the inner cup 11 so as to surround the inner cup, and is attached with a double-sided tape. Further, a thermostat 28 is fixed to the planar heater 27 with an adhesive. The inner cup assembly is produced by the steps (a) to (d) in FIG. 4A.
As shown in FIG. 4B (e), the upper packing 16 is fitted into the upper end of the outer cup 12. Then, the handle 14 is attached to the outer cup 12 with a screw. This step creates an outer cup assembly.

  As shown in FIG. 4B (f), the lower packing 17 is fitted into the bottom lid 13. By this step, a bottom lid assembly is created.

  As shown in (g) of FIG. 4C, the assembly of the lower cup combined in (e) of FIG. 4B is fitted into the assembly of the inner cup combined in (d) of FIG. 4A. Then, the bottom lid assembly assembled in FIG. 4B (f) is inserted into the slit 32 of the mounting bracket 21 at the four locations of the dowel 31 of the bottom lid 13 (1), and the bottom lid 13 is rotated (2). Fix it. At this time, a bond is piled up at the corner of the bottom lid 13 and fixed with a holding force that cannot be disassembled.

  FIG. 5 shows an exploded view of the power supply base 50. Further, FIG. 6A shows a view with the upper lid removed, and FIG. 6B shows a cross-sectional view of the feed base.

  A power transmission coil 54 is attached to the back side of the upper lid 51 with a double-sided tape 53. A sponge 55 is attached under the power transmission coil 54. A circuit board 57 is disposed under the sponge 55. A lower lid 52 is fixed to the assembly of the upper lid 51 with screws. Reference numeral 56 denotes a light-emitting component that emits light during communication with the heat retaining cup, and reference numeral 58 denotes a DC jack to which a DC voltage is supplied from an external power source.

FIG. 7 shows an electrical block diagram of the electric heat retaining device of the present invention.
The electric power from the external power source 76 is supplied to the power transmission side control unit 75 of the power supply stand 50. As the external power source 76, an AC adapter connected to a commercial power source, a USB having a power function, a car cigarette lighter socket, or the like can be used. In the power transmission side control unit 75, for example, an alternating current of about 100 KHz is created and supplied to the power transmission coil 54. Electric power is transmitted between the power transmission coil 54 of the power supply base 50 and the power reception coil 24 of the cup 10 by electromagnetic induction. The power received by the power receiving coil 24 is adjusted by the power receiving side control unit 72 and supplied to the heat exchange element 71 such as a heater.

  In FIG. 8, the whole perspective view of the modification of the electric type heat retention apparatus of Example 1 of this invention is shown. This electric heat retaining device is provided with an upper lid 40 on an electric heat retaining cup 10.

  FIG. 9 shows changes over time in the temperature of hot water between the electric heat retaining cup of the modification of Example 1 shown in FIG. 8 and the commercially available heat retaining cup having a vacuum double structure. In a commercially available vacuum double-structured heat retaining cup shown as a comparative example, when hot water of about 85 ° C. is added, the temperature decreases with time and reaches about 60 ° C. after 90 minutes. On the other hand, in the electric heat retaining cup of Example 1, the temperature decreases at the beginning with the passage of time, but the temperature decrease becomes gradual and becomes substantially constant at about 73 ° C. after 60 minutes. .

  According to the present embodiment, since the planar heater is disposed on the side surface of the inner cup so as to surround the inner cup, and is attached, the heat conduction characteristics are better than those provided with the heater at the bottom of the cup. The liquid in the cup can be efficiently kept warm. In addition, instead of providing a heater on the bottom, a conventional cup is provided on the side surface of the inner cup where the vacuum double layer is located. Therefore, a cup having an outer diameter similar to that of the conventional cup can be obtained without increasing the height of the cup. Can be obtained.

  Moreover, since the electrical storage element which stores electric power is not built in compared with the electric heat retaining cup described in Patent Document 1, a lightweight and small cup can be obtained.

  Furthermore, because the mounting bracket was fixed to the bottom of the inner cup, and the circuit board and the power receiving coil were mounted to the mounting bracket, and the dowel provided on the bottom lid was fitted and fixed to the slit of the mounting bracket. An electric heat retaining cup that is compact and easy to manufacture can be provided. Also, the inner cup and the outer cup are sealed with the upper packing at the upper part of the cup, and the bottom lid and the outer cup are sealed with the lower packing at the lower part of the cup. The cup can be washed with water.

  Example 1 is an electric heat retaining cup using a planar heater. Example 2 uses a Peltier element as a heat exchange element, and the cup has heat retaining and cold retaining functions. Is. The Peltier element can switch the surface that absorbs heat and generates heat by reversing the polarity of the current. In the cup of FIG. 3, instead of the planar heater 27, a planar Peltier element is attached around the inner cup.

  FIG. 10 shows an electrical block diagram of the electric type heat retaining cup of the present embodiment. The power supply stand 50 is provided with a heat insulation / cold insulation changeover switch 77. The power supply base 50 and the cup 10 communicate with each other via the power transmission coil 54 and the power reception coil 24, and a switching control signal for keeping warm and cool is transmitted from the power transmission side control unit 75 to the other antenna. Is transmitted to the power receiving coil 24. The switching control signal received by the power receiving coil 24 is sent to the power receiving side control unit 72, and the power receiving side control unit 72 switches between heat insulation and cold insulation of the Peltier element 78. In FIG. 10, a thick line indicates a flow of electric power for driving the Peltier element, and a thin one-dot chain line indicates a flow of a control signal.

  According to the present embodiment, in addition to the effects of the first embodiment, the cup can have a function of keeping warm and keeping cool. When the cup is placed on the cold side, the temperature of the liquid in the cup can be lowered, for example, by about 15 ° C.

  In addition, a switch for heat insulation and cold insulation is provided in the power supply stand, and the switching control signal is transmitted to the cup side so as to switch the polarity of the Peltier element. The cup can have a closed structure, and the cup can be washed with water.

  In Example 1 and Example 2, a cup for coffee, tea, or the like has been described. However, the present invention is not limited to any container that can be kept warm or cold by containing a liquid, such as a tumbler or a tea cup for tea. Can also be applied.

10 Electric heat retaining cup (container)
11 Inner cup 12 Outer cup 13 Bottom lid 14 Handle 16 Upper packing 17 Lower packing 21 Mounting bracket 22 Heat radiation sheet 23 Circuit board 24 Power receiving coil 25 Coil holder 27 Planar heater 28 Thermostat 31 Dowel 32 Slit 40 Upper lid 50 Power supply stand 51 Upper lid 52 Lower lid 53 Double-sided tape 54 Power supply coil 55 Sponge 56 Light emitting window component 57 Circuit board 58 DC jack 71 Heat exchange element 72 Power receiving side control section 75 Power transmission side control section 76 External power supply 77 Changeover switch 78 Peltier element

Claims (10)

An electric heat insulation container having a power receiving coil and a heat exchange element and using wireless power feeding,
An inner container, an outer container, and a bottom lid;
The power receiving coil is disposed at the bottom of the container;
The planar heat exchange element is arranged on the side surface of the inner container so as to surround the inner container ,
A mounting bracket is fixed to the bottom of the inner container,
A circuit board is attached to the mounting bracket via a heat dissipation sheet,
A coil holder with the power receiving coil attached thereto is attached to the mounting bracket . In the electric thermal insulation container using the wireless power feeding according to claim 1,
The electric heat-retaining container is characterized in that the planar heat exchange element is attached to the lower side of the side surface of the inner container so as to surround the inner container. In the electric thermal insulation container using the wireless power feeding according to claim 1 or 2 ,
The inner container and the outer container are sealed by an upper packing at their upper parts,
The electric lid for heat insulation and heat insulation, wherein the bottom lid and the outer container are sealed by a lower packing at a lower part of the outer container. In the electric thermal insulation container using the wireless power feeding according to any one of claims 1 to 3 ,
A thermostat or thermistor is attached to the surface of the heat exchange element. In the electric thermal insulation container using the wireless power feeding according to any one of claims 1 to 4 ,
The electric heat-retaining container is characterized in that the heat exchange element is a planar heater or a Peltier element. In the electric thermal insulation container using the wireless power feeding according to any one of claims 1 to 5 ,
The container is a cup or tumbler. The electric thermal insulation container according to any one of claims 1 to 6 ,
An electrical thermal insulation apparatus using wireless power feeding, which includes a power transmission side control unit and a power transmission coil, and includes a power feeding base that sends power to the power receiving coil by electromagnetic induction. In the electric thermal insulation cooler using the wireless power feeding according to claim 7 ,
As the heat exchange element, a Peltier element is used,
The power supply stand is provided with a heat insulation and cold insulation changeover switch to generate a changeover control signal,
Via the power transmission coil and the power reception coil, the switching control signal is transmitted to the container side,
An electric type thermal insulation apparatus, wherein the Peltier element is switched between heating and cooling by a power receiving side control unit of the electric type thermal insulation container based on the switching control signal. A method of manufacturing an electric insulated container using wireless power feeding having a power receiving coil and a heat exchange element,
Fixing the mounting bracket to the bottom of the inner container;
Attaching the circuit board to the mounting bracket via a heat dissipation sheet;
Attaching the coil holder to which the power receiving coil is attached to the mounting bracket;
Arranging a planar heat exchange element on the side surface of the inner container so as to surround the inner container, and creating an inner container assembly;
Fitting the upper packing into the upper part of the outer container to create an outer container assembly; and
Fitting the bottom packing into the bottom lid to create a bottom lid assembly; and
Fitting the outer container assembly into the inner container assembly and sealing the inner container assembly and the outer container assembly with the upper packing; and
The dowel of the bottom lid is fitted into the slit of the mounting bracket, the bottom lid is rotated and fixed to the mounting bracket, and the outer packing assembly and the bottom lid assembly are connected by the lower packing. And a method for producing an electric insulated container that includes a step of sealing. In the manufacturing method of the electric type thermal insulation container using the wireless power feeding according to claim 9 ,
The method for manufacturing an electric heat-retaining container, wherein the planar heat exchange element is attached to the lower side of the side surface of the inner container so as to surround the inner container.

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