JP5502621B2 - Floor with contactless power supply function - Google Patents

Description

The present invention relates to a floor with a non-contact power feeding function, and more particularly to a technique for arranging a power feeding device that performs non-contact power feeding to an indoor power receiving device inside the floor.

  Conventionally, a power receiving device that generates a high-frequency magnetic field is disposed on the lower surface of a floor panel of a building, and a power receiving device that supplies power received in a non-contact manner from a power feeding device to a DC device using electromagnetic induction is provided on the floor panel surface. There is known a building with a non-contact power feeding function disposed at a position facing the power feeding device (see, for example, Patent Document 1). As a result, the deterioration of the design and space of the building due to the power distribution system can be prevented, and the power supply to the load equipment can be easily performed to increase the safety.

JP 2009-159683 A

  However, in the conventional example shown in Patent Document 1, since the power feeding device is arranged on the lower surface of the floor panel, the distance between the power feeding device and the indoor power receiving device is increased. That is, there is a problem that the power feeding device is separated from the power receiving device by the thickness of the floor panel, and power feeding efficiency is poor.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a non-contact power supply function that can increase the power supply efficiency by shortening the distance between the power supply device and the indoor power receiving device. To provide a floor .

In order to solve the above problems, a non-contact power supply function-equipped bed of the present invention, the high-frequency magnetic field generated from the power feeding apparatus embedded in the bed, the power supply in a non-contact manner with respect receiving apparatus installed in a room A floor with a non-contact power feeding function to be performed, wherein an upward recess having a storage space that opens upward and can store the power supply device is formed in a part of the floor material, and the storage space in the upward recess with housing the power supply device, the upper opening of the upward recess has covered by the cover member, the inside of the upwardly concave, a gap closing member for adhering the upper surface of the feeding device on the rear surface of the lid member It is characterized by that.

The floor with a non-contact power feeding function of the present invention is a floor with a non-contact power feeding function that supplies power in a non-contact manner to a power receiving device installed indoors by a high-frequency magnetic field generated from a power feeding device embedded in the floor . Forming a downward recess having a storage space that opens downward and can store the power supply device inside, and stores the power supply device in the storage space in the downward recess, the lower opening of the downwardly concave portion has covered by the cover member, the inside of the downwardly concave, characterized in that the upper surface of the power feeding device provided with a gap closing member for close contact with the top surface of the downward recess.

  The gap closing member is preferably made of an elastic body.

  It is preferable that a plurality of the gap closing members are provided at a predetermined interval so that a space between the gap closing members serves as a heat radiating space for releasing heat from the power feeding device.

  It is preferable that the lid member is detachable from the flooring.

In the floor with the non-contact power feeding function of the present invention, the power feeding efficiency can be increased by shortening the distance between the power feeding device and the indoor power receiving device.

It is front sectional drawing explaining an example of embodiment of the floor structure with a non-contact electric power feeding function of this invention. It is side surface sectional drawing same as the above. It is a disassembled perspective view explaining the state which accommodates an electric power feeding box inside the upward recessed part of a floor material same as the above, and covers the upper opening part of an upward recessed part with a cover member. (A) is sectional drawing which shows an example of the gap closing member for sticking the upper surface of the electric power feeding box which incorporates the same electric power feeding coil to the back surface of a cover member, (b) is fixing which fixes a cover member to a flooring It is sectional drawing explaining a means. It is sectional drawing which shows the other example of a gap closing member same as the above. It is another embodiment of the present invention, and is an exploded perspective view illustrating a state in which a power supply box is housed inside a downward recess of a flooring and a lower opening of the downward recess is covered with a lid member. (A) is sectional drawing which shows an example of the gap closing member for sticking the upper surface of the electric power feeding box of FIG. 6 to the top | upper surface of a downward recessed part, (b) is sectional drawing which shows the other example of a gap closing member. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram of a non-contact power feeding system that combines a floor structure with a non-contact power feeding function of this embodiment and a fixture as viewed from the front, and FIG. 2 is a diagram of the side view. In the following example, a detached house or an apartment house is assumed as a building, but the building is not limited to a house but may be a building such as an office or a store.

  The fixture 2 includes a fixture main body 3 having the function of a partition wall. A caster 18 is attached to the fixture body 3 so that it can travel on the floor F. In addition, it is desirable to provide the caster 18 with a lock mechanism (not shown) and fix the fixture body 3 so as not to move on the spot.

  The fixture body 3 is provided with a top plate portion 9, a side wall portion 12 extending from the four sides of the top plate portion 9 to the vicinity of the floor surface 7, and a bottom plate portion 23 covering the lower surface side of the side wall portion 12. ing. The power receiving device 6 is housed in the space 10 surrounded by the top plate 9, the side wall 12, and the bottom plate 23.

  The power receiving device 6 of this example includes a power receiving coil 6 a, a rectifying and smoothing circuit 21, and a sine wave output inverter 22. The power receiving device 6 converts magnetic energy from a power supply device 5 inside the floor, which will be described later, into electrical energy based on the principle of electromagnetic induction and supplies power to the load device. The power supply device 5, the power receiving device 6, The non-contact power feeding unit 4 is configured. The rectifying / smoothing circuit 21 converts the power received by the power receiving coil 6a into a DC voltage and outputs it. The sine wave output inverter 22 converts DC power (for example, 24V) output from the rectifying / smoothing circuit 21 into load power (250 W or more, AC100V, 50/60 Hz).

  In the example shown in FIGS. 1 and 2, the shield member 11 a having non-magnetic permeability is coated over the entire inner surface of the top plate portion 9, and the non-magnetic shield is further formed over the entire inner surface of the side wall portion 12. The member 11b is covered. Note that the inner surface of the bottom plate portion 23 located on the floor facing side A is not covered with a shield member. Thereby, all the surfaces other than the floor facing side A of the space portion 10 surrounded by the top plate portion 9 and the side wall portion 12 are magnetic shield spaces.

  A vertical partition wall 13 having a flat box shape is erected from the upper surface of the top plate portion 9 upward. The upper end height of the partition wall 13 is set lower than the ceiling height, but may be the same height as the ceiling height. The size of the partition wall 13 in this example is set to a size capable of installing a 37V type television.

  On the front surface 13 a of the partition wall 13, a television installation surface 14 (FIG. 2) for installing and fixing a thin television as the load device 1 is provided. In addition to flat-screen TVs, the load devices widely include various electronic devices such as DVD recorders, LED lighting fixtures, notebook computers, radios, stereos, tuners, hairdressing devices, and mobile phones.

  An outlet 15 is installed below the television installation surface 14. The outlet 15 is connected to the output side of the sine wave output inverter 22 through an electric circuit 50 that passes through the top plate portion 9 and the shield member 11a. A TV 15 can be used by providing an outlet 15 capable of supplying relatively large power and inserting a plug provided at one end of the power cord 51 of the flat-screen TV into the outlet 15. In addition, the installation position of the outlet 15 can be selected as appropriate, such as a side surface portion or a top surface portion of the fixture body 3 other than the partition wall 13.

  On the other hand, the floor F for flooring is composed of a plurality of flooring materials 8. A power feeding device 5 that performs non-contact power feeding to the power receiving device 6 is embedded in some flooring 8. The power supply device 5 includes, for example, a power supply coil 5a that generates a high-frequency magnetic field by converting electric energy from a commercial power source into magnetic energy, and a control unit (not shown) such as a high-frequency inverter that controls the frequency of an alternating current. And.

  FIG. 3 shows an example of the flooring 8 in which the feeding coil 5a is embedded. As shown in FIG. 3, an upward recess 25 having a storage space 25 b that opens upward and can store the feeding coil 5 a is formed in a part of the flooring 8. The power feeding device 5 includes a power feeding box 50 that houses therein a power feeding coil 5a (FIG. 1) and a control unit (not shown) such as a high-frequency inverter that controls the frequency of an alternating current. The power supply box 50 is covered with the lid member 27 from above while being housed in the upward recess 25 of the flooring 8. Note that a wiring cord (not shown) of a commercial power supply is connected to the control unit in the power supply box 50 from the outside.

  The lid member 27 is made of wood, for example, and the upper surface of the lid member 27 is arranged flush with the floor surface 7 around the lid member 27. In this example, the upper surface of the power supply box 50 is in close contact with the back surface of the lid member 27, and the gap G between the power supply coil 5a and the power reception coil 6a shown in FIG.

  In addition, although the thing formed in the unit dimension is used as the flooring 8, forming in a unit dimension is not essential. Cork tiles, plastic tiles, and the like can also be used as the flooring 8. In short, the material of the flooring 8 is not limited as long as it has a thickness in which the feeding coil 5a is built.

  Therefore, when embedding the power supply coil 5 a having the above configuration in the floor material 8, the cover member 27 is covered from above in a state where the power supply coil 5 a is set in the upward concave portion 25 provided in the floor material 8. As a result, the feeding coil 5a can be easily housed and arranged inside the flooring 8. In addition, by bringing the upper surface of the power supply coil 5a into close contact with the back surface of the lid member 27, the distance between the power supply coil 5a and the power reception coil 6a (FIG. 1) can be shortened, and power supply stabilization and power supply efficiency can be achieved. .

  In addition, since it is only necessary to cut and form the upward recess 25 in the flooring 8, it does not take time to process the flooring 8, and the existing flooring 8 can be used, so that the cost reduction can be maintained.

  Moreover, the feeding coil 5 a is not exposed on the floor surface 7 by the lid member 27. In addition, by forming the lid member 27 flush with the surface decorative material of the surrounding floor material 8 and having the same appearance, it is possible to realize a finished state that does not feel uncomfortable for the entire floor F. In addition, by increasing the opening width of the upward recess 25 of the flooring 8, a large power supply coil 5 a can be accommodated. As a result, a relatively large amount of power can be supplied, and the load device 1 with high power consumption such as a television can be used. Will also be compatible.

  Further, in this example, the power receiving device 6 is housed in the space portion 10 surrounded by the top plate portion 9 and the side wall portion 12 of the fixture body 3, and the surfaces other than the floor facing side A of the space portion 10 are shield members 11a, Since the magnetic shielding is performed at 11b, the high-frequency magnetic field generated from the non-contact power supply unit 4 does not leak to the outside of the fixture body 3, so that the power supply efficiency of the non-contact power supply unit 4 can be improved and the space portion There is also an advantage that it is possible to prevent the influence of electromagnetic waves from being exerted on all the load devices 1 installed outside the apparatus 10.

  In FIG. 4A, a gap closing member 30 is provided on the bottom surface of the upward recess 25 of the flooring 8, and the gap closing member 30 eliminates the gap between the upper surface of the power supply box 50 and the back surface of the lid member 27. An example of the case is shown. Other configurations are the same as those of the embodiment of FIG. In this example, since the power supply box 50 can be reliably brought into close contact with the back surface of the lid member 27 using the gap closing member 30, it is possible to further stabilize the power supply and increase the power supply efficiency. FIG. 4B shows an example when the lid member 27 is fixed to the floor material 8 using the screw member 29. Since the lid member 27 is detachable by the screw member 29, there is an advantage that the power supply box 50 can be easily inspected or removed, replaced, etc. while the flooring 8 is laid.

  Further, the gap closing member 30 of this example is formed of an elastic body. As the elastic body, for example, a foam material such as urethane foam, a rubber material, a resin spring material, or the like is used. Of course, the material of the gap closing member 30 is not limited as long as the upper surface of the power supply box 50 is closely attached to the back surface of the lid member 27 without a gap.

  FIG. 5 shows another example of the gap closing member 30. In this example, by providing a plurality of gap closing members 30 with a predetermined interval, the space between the gap closing members 30 is defined as a heat radiation space 60. That is, in the heat radiation space 60, the power supply box 50 is arranged in a state of floating from the bottom surface of the upward concave portion 25, whereby heat from the power supply box 50 is radiated to the heat radiation space 60. The heat dissipation of the power supply box 50 is further improved.

  FIG. 6 shows still another embodiment. In this example, a downward recess 26 having a storage space 26b that opens downward and can store the power supply box 50 inside is formed in a part of the flooring 8, and the power supply box 50 is stored in the storage space 26b. The lower opening 26 c of the downward recess 26 is covered with a lid member 28. Thereby, like the embodiment of FIG. 3, the power supply box 50 can be easily housed and arranged inside the flooring 8. In addition, the distance between the power supply coil 5a and the power reception coil 6a (FIG. 1) can be shortened by bringing the upper surface of the power supply box 50 into close contact with the top surface 26a of the downward concave portion 26, thereby stabilizing power supply and improving power supply efficiency. Can do. In addition, as a fixing structure of the lid member 28, the screw member 29 shown in FIG. 4B may be detachable so that the power supply box 50 can be easily inspected, removed, replaced, or the like.

  In FIG. 7A, a gap closing member 30 is interposed between the lid member 28 and the power supply box 50 in FIG. 6, and the gap closing member 30 causes the upper surface of the power supply box 50 and the top surface 26 a of the downward recess 26 to be located. An example in which the gap between them is eliminated is shown. The gap closing member 30 is preferably composed of a foamed material such as urethane foam, or an elastic body such as a rubber material or a resin spring material.

  In FIG. 7B, a plurality of gap closing members 30 are provided at a predetermined interval so that a space for heat dissipation 60 is formed between the gap closing members 30. As in the embodiment of FIG. In 60, since the power supply box 50 is arranged in a state of floating from the back surface of the lid member 28, the heat of the power supply box 50 is radiated to the heat radiating space 60, and the heat dissipation of the power supply box 50 is further improved.

DESCRIPTION OF SYMBOLS 4 Non-contact electric power feeding unit 5 Power feeding apparatus 6 Power receiving apparatus 8 Floor material 25 Upward recessed part 25a Upper opening part 25b Storage space 26 Downward recessed part 26a Lower opening part 26b Storage space 26c Top surface 27,28 Lid member 30 Gap closing member 50 Power supply box 60 Space for heat dissipation F Floor

Claims (5)

A floor with a non-contact power feeding function that performs non-contact power supply to a power receiving device installed indoors by a high-frequency magnetic field generated from a power feeding device embedded in the floor ,
An upward concave portion having a storage space that opens upward and can store the power feeding device inside is formed in a part of the floor material,
With housing the power supply apparatus to the storage space of the upwardly within the recess, the upper opening of the upward recess has covered with a lid member,
A floor with a non-contact power feeding function, characterized in that a gap closing member is provided inside the upward concave portion so as to bring the upper surface of the power feeding device into close contact with the back surface of the lid member . A floor with a non-contact power feeding function that performs non-contact power supply to a power receiving device installed indoors by a high-frequency magnetic field generated from a power feeding device embedded in the floor ,
Forming a downward recess in a part of the flooring material having a storage space that opens downward and can store the power supply device inside,
With housing the power supply apparatus to the storage space of the downward recess, the lower opening of the downwardly concave portion has covered with a lid member,
A floor with a non-contact power feeding function, characterized in that a gap closing member is provided inside the downward recess to closely contact the upper surface of the power supply device with the top surface of the downward recess . Non-contact power supply function-equipped bed according to claim 1 or 2, characterized in that said gap closing member is constituted by an elastic body. 4. The heat dissipation space for releasing heat of the power feeding device is provided between the gap closing members by providing a plurality of the gap closing members at predetermined intervals . 5. The floor with a non-contact power feeding function according to one item . Non-contact power supply function-equipped bed according to any one of claims 1 to 4, characterized in that the detachable said lid member with respect to the floor material.

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