JPH07106169A - Wiring apparatus - Google Patents

Abstract

PURPOSE:To supply power to an electric apparatus through a floor panel without damaging the floor panel by providing electric path opening/closing means capable of opening/closing the electric path from the upper portion of a free access floor on an electric path from an indoor wiring to a primary coil. CONSTITUTION:A primary coil 11 is connected through an indoor wiring 3 led into the lower part of a free access floor from a wiring board and a primary converter 12, and a secondary coil is connected with an electric apparatus through a secondary transformer 22. Further, a wiring instrument I is connected as electric path opening/closing means with a power supply controller 13 communicating with the primary converter 12 for opening/closing an electric path from an indoor wiring 3 and the secondary transformer 22. Simultaneously, a controller 23 is provided which receives an opening/closing signal from a switch of the electric instrument. Further, the primary coil 11 and the secondary coil 22 are concentrically provided through a panel 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device, and more particularly to a wiring device provided on a floor panel of a free access floor.

[0002]

2. Description of the Related Art For example, in a computer room, a broadcasting control room, a telephone exchange room, a teletype room, etc., a wiring cable, an air conditioning duct, etc. can be installed in a space under the floor having a height of about 150 to 300 mm, and a removable floor. In general, a free-access floor is used, where the floor is constructed by laying panels, and the current situation is that electricity is mainly supplied to electrical equipment on the floor from a power outlet installed on the floor panel.

[0003]

However, in order to install a power outlet on the floor panel, it is necessary to embed the outlet or process the panel to pass the wiring through, which will result in unsightly damage to the floor panel. In addition, a cord that crawls from an outlet to an electric appliance may clutter the floor surface and spoil the appearance, and may cause a serious loss such as loss of data being processed due to the cord being caught and the plug coming off the outlet.

The present invention has been made in view of the above problems, and an object thereof is to supply electric power to an electric appliance through a floor panel of a free access floor without damaging the floor panel, An object is to provide a wiring device that does not require a cord to crawl on the floor.

[0005]

The present invention achieves the above object, and its gist is to provide a primary coil for connecting with an indoor wiring drawn under the floor of a free access floor,
The secondary coil is installed on the lower surface of the floor panel constituting the floor surface of the free access floor, and the secondary coil is placed above the primary coil on the upper surface of the floor panel, and the secondary coil is formed on the secondary coil by mutual induction with the primary coil. An electromotive force is induced and electric power is distributed from this secondary coil to an electric appliance, and the electric circuit from the indoor wiring to the primary coil is further provided with electric circuit opening / closing means capable of opening / closing from the floor of the free access floor. It is characterized by

Further, the secondary coil may be installed at the bottom of the electric appliance.

[0007]

The wiring apparatus of the present invention can wirelessly supply power by electromagnetic induction between the primary coil and the secondary coil via the floor panel. That is, the alternating magnetic field generated by the alternating current flowing from the indoor wiring to the primary coil induces a current flowing in the secondary coil so as to cancel the magnetic field. Further, if the secondary coil is provided at the bottom of the electric appliance, the power can be directly supplied from the primary coil to the electric appliance.

[0008]

[Examples]
An embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic diagram showing a power distribution device I of the present invention. The power distribution device I is a primary coil 1 with a magnetic core installed on the lower surface of a desired floor panel 1 of a free access floor.
1 and a secondary coil 21 with a magnetic core provided on the upper surface of the floor panel 1. The primary coil 11 is connected via a primary converter 12 to the indoor wiring 3 that is drawn under the floor of a free access floor from a switchboard (not shown) or the like, and the secondary coil 21 is connected to a lighting device (not shown) via a secondary converter 22. Etc. is connected to an electric appliance. Further, the power distribution device I is connected to the power source control device 13 that communicates with the primary converter 12 to open and close the power line from the indoor wiring 3 and the secondary converter 22 as an electric circuit opening / closing means, and a switch signal of the electric device. And a controller 23 for receiving Further, the primary coil 11 and the secondary coil 21 are concentrically provided via the panel 1.

In the wiring device I constructed as described above, the 100V voltage AC distributed from the switchboard or the like has a frequency of 50/60 by the primary converter 12 via the indoor wiring 3.
After adjustments such as increasing from Hz to about 20 kHz,
It is sent to the primary coil 11. The alternating current flowing through the primary coil 11 generates an alternating magnetic field that penetrates the inside of the coil 11 and reaches the secondary coil 21 through the floor panel 1, and induces an electromotive force in the secondary coil 21 by mutual induction with the primary coil 11. To do. This electromotive force is converted by the secondary converter 22 into a predetermined power source required by the electric appliance side to supply power. Further, the controller 22 receives an open / close signal from the switch of the electric appliance, and superimposes it on the power supply current from the controller 22 to generate coils 21 and 11
Also, the power is sent to the power supply control device 13 via the converter 12, and the control device 13 switches the converter 12 to instruct opening and closing of the electric path to the primary coil 11. The power supply control device 12 can be controlled by, for example, a monitoring device provided on a wall or another room.

FIG. 2 is a schematic view showing one usage mode of the wiring device I, and a lighting device 30 is used as an example of an electric device. A power supply device 10 including a primary coil 11, a primary converter 12, and a power supply control device 13 (see FIG. 1) is installed on the lower surface of one panel 2 of a desired floor panel on the free access floor. Further, the lighting fixture 30 includes a secondary coil 21, a secondary converter 22, and a controller 23.
Is incorporated in the bottom portion 31 as the power receiving device 20. Power supply device 1
The floor panel 2 has a power supply function by an AC magnetic field in a state where an alternating current is flowing in the primary coil 11 in 0, and when the lighting fixture 30 is placed on the upper surface of the floor panel 2, lighting is performed by a current induced in the power receiving device 20. Lights up. The lighting can be turned on and off by operating the switch 32 and supplying or stopping the power supply by the power supply device 10 according to a wireless instruction.

In the wiring device of the present invention, the electric path opening / closing means for opening / closing the electric path to the primary coil is not limited to the one described above as long as it can be remotely controlled in conjunction with the switch on the electric appliance side.

[0013]

As described above, in the wiring device of the present invention, since the induced current due to the electromagnetic induction between the primary coil and the secondary coil can be used as a power source and supplied to the electric device, it is not necessary to make a hole in the floor panel. It is easy to install without the need for it, and there is no unsightly appearance such as the outlet protruding from the floor. Further, if the secondary coil is provided in the electric appliance, there is an effect that the floor surface can be tidied up without requiring a cord from the wiring appliance to the appliance.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a wiring device of the present invention.

FIG. 2 is a diagram showing the usage state of the wiring device of the present invention.

[Explanation of symbols]

 I Wiring device 1, 2 Floor panel 3 Indoor wiring 10 Power supply device 11 Primary coil 12 Primary converter 13 Power supply control device 20 Power receiving device 21 Secondary coil 22 Secondary converter 23 Controller 30 Lighting device 31 Bottom part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ken Sakamura 3-12-30-105 Shiromuradai, Minato-ku, Tokyo (72) Inventor Tatsushi Morokuma 2-8-16 Hatanodai, Shinagawa-ku, Tokyo A-T Co., Ltd.・ Inside

Claims (2)

[Claims] 1. A primary coil, which is connected to an indoor wiring drawn under the floor of a free access floor, is installed on a lower surface of a floor panel constituting a floor surface of the free access floor, and a secondary coil is installed on an upper surface of the floor panel. It is placed above the primary coil, induces an electromotive force in the secondary coil by mutual induction with the primary coil, and distributes electricity from the secondary coil to an electric appliance. From the indoor wiring to the primary coil A wiring device comprising an electric circuit opening / closing means capable of opening / closing an electric circuit to / from the floor of the free access floor. 2. The wiring device according to claim 1, wherein the secondary coil is installed on a bottom portion of the electric device.