JP5502620B2 - 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 under 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. As a result, it is possible to prevent deterioration of the design and space of the building due to the power distribution system, and it is easy to supply power to the load device and enhance safety (for example, see Patent Document 1).

JP 2009-159683 A

  However, in the conventional example shown in Patent Document 1, it is described that a power feeding device is provided on the back surface of the floor panel, but no specific mounting structure is disclosed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to enable a power supply device that performs non-contact power supply to an indoor power receiving device to be easily installed on the lower surface side of the flooring. An object of the present invention is to provide a floor with a contactless power feeding function.

In order to solve the above-described problems, the floor with a non-contact power feeding function according to the present invention has a power feeding device disposed under the floor, and is non-contact with a power receiving device installed indoors by a high-frequency magnetic field generated from the power feeding device A floor with a non-contact power supply function for supplying power at a position, wherein the power supply device is disposed between joists, and the power supply device is supported using a support member that spans adjacent joists, and the upper surface of the power supply device. A flooring material is constructed on the side, and a gap closing member is provided between the support member and the lower surface of the power supply device to interpose the upper surface of the power supply device to the lower surface of the flooring material. .

  The support member is composed of a placement portion for placing the power feeding device and a pair of fixing portions for fixing both ends of the placement portion to adjacent joists, and the placement portion is the floor material. It is preferable that it bend | folds toward the downward direction which leaves | separates from the lower surface.

  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.

In the floor with the non-contact power feeding function of the present invention, the power feeding device that performs the non-contact power feeding to the indoor power receiving device can be easily installed on the lower surface side of the floor material.

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. (A)-(c) is a perspective view explaining the procedure which constructs the feeding box which incorporates a feeding coil same as the above between joists. (A) is sectional drawing which shows an example of the gap closing member for closely_contact | adhering the electric power feeding box which comprises an electricity supply apparatus same as the above to the lower surface of a flooring, (b) is sectional drawing which shows the other example of a gap closing member. is there. (A) is a perspective view explaining the arrangement | positioning state of the supporting member in the case of constructing the flooring same as the above by the discarding construction method, and (b) is a state in which the power supply box is supported by the supporting member at the opening position of the discarding material. FIG.

  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 under 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 and the power receiving device 6 A non-contact power supply 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 flooring 8 and a plurality of joists 31 arranged in a predetermined arrangement on the lower surface of the flooring 8. On the lower surface side of the flooring 8, a power feeding device 5 that performs non-contact power feeding to the power receiving device 6 is disposed. 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 a wiring cord (not shown) of a commercial power source is connected to the control unit.

  Here, the power feeding device 5 is disposed in a space between the joists 31 using a support member 32 that spans between the joists 31 adjacent to each other.

  The support member 32 is made of, for example, metal or resin. The support member 32 is integrally formed with a placement portion 32a on which the power feeding device 5 is placed and a pair of fixing portions 32b provided at both ends of the placement portion 32a. A pair of fixing | fixed part 32b is each fixed to the upper surface of the joist 31 adjacent. The placement portion 32a is formed in a substantially groove shape in a downward direction away from the lower surface of the flooring 8. The depth of the mounting portion 32 a is set so that the upper surface of the power supply device 5 is in close contact with the lower surface of the floor material 8 when the floor material 8 is applied from above the power supply device 5. In this example, the gap G (FIG. 1) between the feeding coil 5a and the receiving coil 6a is, for example, 45 mm.

  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.

  Thus, when the power supply device 5 having the above-described configuration is installed under the floor, the fixing portions 32b at both ends of the support member 32 are fixed between the adjacent joists 31, 31, as shown in FIG. Then, the power feeding device 5 is set on the mounting portion 32a. Thereafter, the flooring 8 is applied from above the power feeding device 5. Accordingly, the feeding device 5 can be easily disposed on the lower surface of the flooring 8 using the joists 31. In addition, by bringing the upper surface of the power feeding device 5 into close contact with the lower surface of the flooring 8, the distance between the power feeding coil 5a and the power receiving coil 6a can be shortened, and power feeding can be stabilized and power feeding efficiency can be improved.

  In addition, since the method of spanning the support member 32 between the joists 31 is adopted, there is no need to process the flooring 8 and joists 31, and the existing flooring 8 and joists 31 can be used, leading to an increase in cost. There is no.

  Further, the power feeding device 5 installed under the floor is not exposed on the floor surface 7. For this reason, the surface side of the flooring 8 on which the power feeding device 5 is arranged can be finished using the same surface decorative material as the surface side of the flooring 8 on which the power feeding device 5 is not arranged. The state can be realized. In addition, since the power feeding device 5 is disposed on the lower surface side of the flooring 8 having a relatively large area between the joists 31, 31, it is possible to supply a relatively large amount of power, and a load device 1 having a large power consumption such as a television. Can also be supported.

  In addition, since the mounting portion 32a of the support member 32 of this example is bent in a substantially groove shape when viewed from the side, the power feeding device 5 can be stably supported on the mounting portion 32a, and at the same time, the power feeding device 5 is generated. Heat can be dissipated to the underfloor space, and the life of the power feeding device 5 can be extended.

  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.

  3 (a) to 3 (c) show a power supply device 5 in which a power supply coil 5a (FIG. 1) and a control unit (not shown) such as a high-frequency inverter for controlling the frequency of alternating current are housed. An example in which the power supply box 50 is supported by the support member 32 configured by the box 50 and spanned between the joists 31 is shown. 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.

  FIG. 4A is another embodiment of the present invention, and shows an example in which a gap closing member 30 is interposed between the mounting portion 32 a of the support member 32 and the lower surface of the power supply box 50. . In this example, the gap closing member 30 is interposed between the mounting portion 32 a of the support member 32 and the lower surface of the power supply box 50, so that the upper surface of the power supply box 50 can be securely adhered to the lower surface of the flooring 8. Therefore, the power supply can be further stabilized and the power supply efficiency can be improved.

  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 brought into close contact with the lower surface of the flooring 8 without being limited to the elastic body.

  FIG. 4B shows another example of the gap closing member 30. In this example, by providing a plurality of gap closing members 30 at a predetermined interval, a heat radiation space 60 for releasing heat from the power supply box 50 is formed between the gap closing members 30. That is, in the heat radiation space 60, the power supply box 50 is lifted from the mounting portion 32 a, whereby heat from the power supply box 50 is radiated to the heat radiation space 60, and heat dissipation of the power supply box 50 is achieved. Is even better.

  FIG. 5 shows still another embodiment. In the embodiment of FIG. 3, an example of a straight tension construction method in which the flooring 8 is directly laid on the joist 31 is illustrated, but in this example, a dumping tension construction method using the discard tension material 33 is illustrated. In this example, as shown in FIG. 5 (a), an opening 33a for exposing a part of the pair of joists 31 adjacent to a part of the discarding material 33 is formed. After laying the dumping material 33 on the joists 31, the support members 32 are respectively spanned and fixed to the exposed joists 31 through the openings 33a. Thereafter, as shown in FIG. 5B, the gap closing member 30 is placed on the placement portion 32a of the support member 32, and the power supply box 50 is placed thereon. Floor material 8 is constructed from above each. Thereby, the support structure of the power supply box 50 by the support member 32 of this example can be adapted to the discarding method, and the upper surface of the power supply box 50 is spaced from the lower surface of the flooring 8 by the gap closing member 30. It will be kept in close contact. As the gap closing member 30 in FIG. 5B, a plurality of gap closing members 30 are arranged at predetermined intervals as shown in FIG. You may make it form the space part 60 for heat dissipation for escaping.

4 Non-contact power feeding unit 5 Power feeding device 6 Power receiving device 7 Floor surface 8 Floor material 30 Gap closing member 31 joist 32 Support member 32a Mounting portion 32b Fixing portion 60 Heat radiation space portion F Floor

Claims (4)

It disposed a feeding device under the floor, a non-contact power supply function-equipped bed for supplying power by the high frequency magnetic field generated from the power supply device in a non-contact manner with respect power receiving device is installed in a room,
The power supply device is arranged between joists, and the power supply device is supported using a support member that spans adjacent joists, and a flooring is constructed on the upper surface side of the power supply device ,
A floor with a non-contact power feeding function , wherein a gap closing member is disposed between the support member and the lower surface of the power feeding device to bring the upper surface of the power feeding device into close contact with the lower surface of the flooring . The support member is composed of a placement portion for placing the power feeding device and a pair of fixing portions for fixing both ends of the placement portion to adjacent joists, and the placement portion is the floor material. The floor with a non-contact power feeding function according to claim 1, wherein the floor is bent in a downward direction away from the lower surface of the floor . 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. By providing a plurality of the gap closing member at a predetermined distance, any one of claims 1 to 3, characterized in that a heat radiation space for releasing heat of the power supply apparatus between the gap closing member non-contact power supply function-equipped bed according to.

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