JP2006353002A - Cordless electric-power supply panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cordless electric-power supply panel, capable of preventing the risk of electric shocks due to leakage or short circuiting, thus attaining high safety, by attaining connection of a plurality of panel electrodes arranged on a panel surface to indoor wirings through feeding command signals from electrical products on the panel surface requiring feeding. <P>SOLUTION: The plurality of panel electrodes 4 are repeatedly arranged on the panel surface 3 of the panel 1, and the adjacent one-end electrode 4a on one side of the panel electrodes 4 is intermittently connected to a power line 15 of the indoor wiring 14, through a selector 5 performing switching operations, in response to a feeding command signal, and the adjacent other-end electrode 4b on the other side of the panel electrodes 4 is connected to a ground line 16 of the indoor wiring 14 so as to connect the one-end electrode 4a with the power line 15 only when needed, thus providing electrical safety. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cordless power supply panel that can supply electric power cordlessly to an electrical product in contact with the panel surface.

  Supply of power to the power supply, which is a home appliance such as a TV or a personal computer, is achieved by connecting the power outlet with a power outlet connected to the wall with a cable. There was a complaint that the length of the cable was limited, the pattern could not be flexibly changed, and the cable always attached to the power supply sometimes obstructed handling and appearance.

  In addition, dissatisfaction with mobile power supplies such as robots, various movable trolleys, and automatic vacuum cleaners that operate with a heavy and bulky battery mounted as a power source is unsatisfactory in terms of miniaturization and weight reduction. was there.

  In order to eliminate this dissatisfaction, a large number of electrode plates are arranged at predetermined intervals on the floor surface, and each of these electrode plates is alternately connected to a power source by changing the polarity, and on the floor surface or the like. A plurality of electrode elements insulated from each other are provided on the power supply body. In this electrode element, some electrode elements are in contact with one polarity electrode plate, and at the same time, some other electrode elements are in the other polarity. The electrode plates are arranged so as to be in contact with each other, and are configured such that the distance between the electrode plates is larger than the contact range of the electrode plates so that one electrode plate does not simultaneously contact two electrode plates having different polarities, Japanese Patent Publication No. 2-16090 discloses a technology that can wirelessly supply power to a power supply body on a surface.

  In the technology disclosed in Japanese Patent Publication No. 2-16090, a large number of electrode plates arranged on the floor surface remain connected to a power source. Other items on the floor may not only cause electrical leakage and short circuit accidents, but there is also a risk that people may get an electric shock. there were.

In order to solve the above inconvenience, the applicant of the present invention connects each electrode plate (floor electrode) arranged on the floor surface to the indoor wiring via the selector, and this selector requires power supply. According to the power supply request signal from the power supply body on the floor surface, it was assumed that the connection was intermittently switched, and a technology related to the power supply floor that exhibited high safety without fear of electric leakage, short circuit accidents and electric shock was proposed.
Japanese Patent Application No. 2003-406062

  However, in the above-described prior art, since the selector having the intermittent switching function has to be connected and assembled for each floor electrode, the number of required selectors becomes enormous, and the cost required for the selectors is increased. There is a complaint that it will become very large.

  In particular, it is possible to obtain a versatile power supply operation for power supplies on various floor surfaces, and to prevent deterioration of the appearance of the floor surface due to the strong metal feeling of the floor electrodes. As a means for accomplishing this, it is effective to provide as many floor electrodes as possible with the size of the floor electrodes exposed to the floor as small as possible. Therefore, this effective measure is a serious adverse effect.

  Therefore, the present invention was devised to solve the above-mentioned problems in the prior art, and it is a technical problem to reduce the number of selectors used to half or less of the electrodes located on the surface such as the floor surface. Therefore, it is an object of the present invention to achieve a significant reduction in the cost required for the selector while maintaining high safety without fear of electric leakage, short circuit accidents and electric shock.

Of the present invention that solves the above technical problems,
Repeatedly arranging a number of panel electrodes on the panel surface of the panel based on certain rules;
Dividing this large number of panel electrodes into two groups,
Adjacent panel electrodes should be included in other groups,
Based on the power supply command signal that informs the approach or contact of the power supply object that is the power supply object to the panel electrode, a detection body that outputs a switching command signal, and a switch switching operation by decoding the switching command signal from this detection body Providing a selector for performing
One electrode included in one group of panel electrodes is connected to the power line of the indoor wiring via the selector, and the other electrode included in the other group of panel electrodes is connected to the ground line of the indoor wiring. To do,
It is in.

  In the first aspect of the invention, the one electrode of the panel electrode is not connected to the power line of the indoor wiring unless the detection body receives the power supply command signal from the power supply body. Even if an article other than the product is placed on the panel surface and touches the panel electrode, it does not cause a leakage and a short circuit, and even if a person touches one electrode and the other electrode at the same time, it is absolutely impossible to receive an electric shock. Absent.

  Since the one electrode and the other electrode of the panel electrode are adjacent to each other with a gap therebetween, the pair of feeding electrodes of the feeding body is brought into contact with the pair of adjacent panel electrodes in a one-to-one relationship, thereby supplying power. Your body will always be able to receive power.

  At this time, the selector connected to the one electrode in contact with the power feeder is connected to the power line without requiring polarity determination because the other electrode in contact with the power feeder is connected to the ground line in advance. It suffices to perform the operation, and accordingly, the configuration and operation control of the selector are simplified.

  Since the selector is connected to only one electrode forming one group among a large number of panel electrodes divided into two groups, compared to the case where the selector is connected to each panel electrode, the number of uses is as follows: Certainly halved.

  The invention described in claim 2 is obtained by adding a number of panel electrodes to each vertex of a square and repeatedly arranging the structure of the invention described in claim 1.

  In the second aspect of the invention, it is easy to set the arrangement of a large number of panel electrodes, and the distribution of the large number of panel electrodes on the panel surface is surely uniform.

  The invention described in claim 3 is obtained by adding the configuration of the invention described in claim 1 to the fact that a large number of panel electrodes are arranged repeatedly at the vertices of the rectangle.

  In the invention described in claim 3, since it is easy to set the arrangement of a large number of panel electrodes and the direction in which the panel electrodes are repeated at equal intervals is specified, the posture and arrangement of the power feeders on the panel surface are specified. The direction and further the moving direction are specified.

  The invention described in claim 4 is obtained by adding the structure of the invention described in claim 1 to the fact that a large number of panel electrodes are arranged repeatedly at each vertex of the rhombus.

  In the invention according to claim 4, the core material can be easily set in a large number of panel electrodes, and a combination of a wall piece configured to connect adjacent panel electrodes and a wall piece along a short diagonal of the rhombus By using as a panel forming material, a panel having excellent mechanical strength can be obtained with a small amount of material.

  The invention according to claim 5 is obtained by adding a number of panel electrodes to each apex of the regular hexagon and repeatedly arranging them in the configuration of the invention according to claim 1.

  In the invention according to claim 5, the number of uniformly distributed panel electrodes can be reduced under the condition that the interval between adjacent panel electrodes is constant, and each panel electrode is positioned at the apex. By forming a honeycomb core material with a regular hexagon and using this honeycomb core material as a panel forming material, a panel having excellent mechanical strength can be obtained with a small amount of material.

  According to a sixth aspect of the present invention, in the configuration of any one of the first to fifth aspects of the present invention, a selector is provided with a decoding unit that decodes a switching command signal and a one-electrode according to a decoding signal from the decoding unit. And a switch unit for switching and connecting to the power line.

  In the invention described in claim 6, since the switching connection operation of the switch section is made in accordance with the decryption signal from the decryption section, the switching form of the switch section can be changed according to the content of the decryption signal. .

  According to the seventh aspect of the present invention, in the configuration of the sixth aspect of the invention, any one of the switching contact of the selector switch unit other than the power line, the switching contact to the ground line and the switching contact to the open terminal, It is what added it to one or the other.

  According to the seventh aspect of the present invention, the connection of the switch portion of the selector to the ground line in the indoor wiring can be selected from connection or non-connection.

  The invention according to claim 8 detects the detection body in the configuration of the invention according to any one of claims 1 to 7 by a detection unit that detects a power supply command signal from the power supply unit, and the detection unit. The power supply command signal is analyzed and the analysis unit that outputs the switching command signal is added.

  In the invention according to claim 8, since the power supply command signal detected by the detection unit is analyzed by the analysis unit to be a switching command signal, a wide range of signals can be handled as the power supply command signal. It becomes.

  The invention according to claim 9 is obtained by adding the configuration of the invention according to any one of claims 1 to 8 that the power line of the indoor wiring is one or both of an AC power line and a DC power line. is there.

  In the invention according to claim 9, the power supply to the power supply can be safely achieved by setting the type of power of the power line corresponding to the difference between the power supply and the AC load or the DC load. Can do.

  The invention according to claim 10 is an AC switch in which the power line is composed of an AC power line and a DC power line in the structure of the invention according to claim 6 or 7, and the switch part of the selector is switched and connected to the AC power line. And a DC switch for switching and connecting one electrode to a DC power line.

  In this invention of Claim 10, even if a power feeding body is an alternating current load or a direct current load, electric power can be appropriately supplied with respect to this power feeding body.

  The invention described in claim 11 is obtained by adding the switching piece of the AC switch and the DC switch to the configuration of the invention described in claim 10 in common.

  In the invention described in claim 11, the structure of the switch portion of the selector can be simplified.

  A twelfth aspect of the present invention is the same as that of any one of the first to eleventh aspects, wherein a group of desired numbers of adjacent panel electrodes is partitioned to form a panel unit. The one electrode is commonly connected to one selector.

  In the invention described in claim 12, since the plurality of one electrodes are commonly connected to one selector, the number of selectors used in the entire panel is greatly reduced.

  The invention described in claim 13 is obtained by adding the number of panel electrodes in the arrangement direction to an equal even value to the configuration of the invention described in claim 12.

  In the invention according to claim 13, since one of the adjacent panel electrodes in the arrangement direction is one electrode and the other is the other electrode, the arrangement of the one electrode and the other electrode along the arrangement direction is: Therefore, when the panel unit is configured by setting the number of the panel electrodes in the arrangement direction to an equal even value, each panel unit can have the same structure.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the invention according to claim 1, since one electrode of the panel electrode is not connected to the power line of the indoor wiring unless receiving a power supply command signal from the power supply body, other than the power supply body Even if an article or person touches the panel electrode, there is no possibility of causing an electric leakage, a short circuit, or an electric shock accident, and extremely high safety can be exhibited.

  Since the one electrode and the other electrode of the panel electrode are adjacent to each other with a gap therebetween, the pair of power receiving electrodes of the power feeder is brought into contact with the pair of adjacent panel electrodes in a one-to-one relationship. The body can always be supplied with power, and a simple and reliable power supply to the power supply can be achieved.

  The selector only needs to switch and connect one electrode to the power line, it is not necessary to select the polarity of the indoor wiring to be switched and connected, and the configuration and operation control become simple, and the structure and handling of the selector are simple. Become.

  The number of selectors can be reduced by half compared to the case where the selectors are connected to each panel electrode, so the cost required for the selectors can be halved and the manufacturing cost of the panel can be greatly reduced. Further, since the other electrode is directly connected to the ground line, the overall structure of the panel can be simplified.

  In the invention according to the second aspect, it is possible to easily and reliably manufacture a panel in which a large number of panel electrodes are evenly distributed on the panel surface.

  In the invention according to claim 3, the arrangement setting of the panel electrodes is easy, and a constant orientation can be given to the state of the power feeding body on the panel surface, and accordingly, the power feeding body on the panel surface. Is easy to handle.

  In the invention according to claim 4, it is possible to manufacture a panel that is easy to manufacture and excellent in mechanical strength.

  In the invention according to claim 5, since the number of panel electrodes used can be reduced while maintaining the configuration in which the panel electrodes are arranged at regular intervals, the manufacturing cost of the panel can be sufficiently reduced. In addition, a panel having excellent mechanical strength can be manufactured.

  In the invention according to claim 6, since it is possible to change the switching mode of the switch section, it is possible to select and use the type and power rating of the power line to be switched and connected to a desired plurality of types. This makes it possible to supply power to a wide range of power feeders.

  According to the seventh aspect of the invention, the electrical connection structure of the entire panel can be simplified by disconnecting the selector from the ground line as necessary.

  In the invention described in claim 8, since a wide range of signals can be used as a power supply command signal, a wide range of electrical products can be handled as a power supply and the configuration of the detector can be freely set. Therefore, the power supply operation mode for the power supply body can be varied accordingly.

  According to the ninth aspect of the present invention, power supply can be achieved without any inconvenience depending on the difference between the AC load and the DC load of the power feeder.

  In the invention according to claim 10, since one of AC power and DC power can be freely selected and supplied to the power feeder, the type and range of power feeders that can be used are expanded. Can do.

  In the invention according to claim 11, since the structure of the switch part of the selector can be simplified, the selector itself can be miniaturized, and accordingly, the selector can be handled easily during panel manufacture. Become.

  In the invention described in claim 12, since the plurality of one electrodes are commonly connected to one selector, the number of selectors used in the entire panel can be greatly reduced. The cost required for the selector can be greatly reduced.

  In the invention of claim 13, since a large number of panel units arranged adjacent to each other to constitute a panel can have the same structure, the panel can be constituted by a panel unit having a single structure, Thereby, a panel can be constructed economically and efficiently.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of a panel 1 according to the present invention. A large number of panel electrodes 4 made of a highly conductive material are repeatedly arranged on a panel surface 3 of the panel 1 according to a certain rule. The exposed area on the panel surface 3 of 4 is set to be as small as possible within a range in which stable and reliable electrical contact can be obtained with a power supply electrode 24 of a power supply body 18 which is a power supply target to be described later. .

  2 to 5 show a typical example of the repeated arrangement of a large number of panel electrodes 4 based on a certain rule. FIG. 2 shows that the panel electrodes 4 are positioned at the vertices of a square, FIG. 3 shows an example in which the panel electrode 4 is positioned at each vertex of a rectangle having a short side and a long side, and FIG. 4 shows an example in which the panel electrode 4 is arranged in a diamond shape. FIG. 5 shows an example in which the panel electrode 4 is positioned at each vertex of the regular hexagon and repeatedly arranged at the apex.

  The panel electrodes 4 adjacent to each other with the above-described shape arrangement as a fixed rule are set as one electrode 4a and the other as the other electrode 4b. It is divided into groups of electrodes 4b.

  In the embodiment of FIG. 2, the setting of the arrangement form of the panel electrodes 4 is simple, and the distribution of a large number of panel electrodes 4 on the panel surface 3 is sufficiently uniform.

  In the embodiment of FIG. 3, since the setting of the arrangement form of the panel electrodes 4 is simple and the interval between the adjacent panel electrodes 4 along the short side and the long side of the rectangle is different, The direction in which the power supply to 18 can be reliably achieved and the direction in which it is difficult to achieve are generated, whereby the posture, arrangement direction, and moving direction of the power supply 18 on the panel surface 3 are substantially specified and naturally arranged. Become.

  In the embodiment of FIG. 4, the arrangement of the panel electrodes 4 is a repetitive arrangement positioned at each vertex of the rhombus shown in FIG. 4 (a), as shown in FIG. 4 (b). A core material is configured by connecting wall pieces forming a short diagonal line of a rhombus to wall pieces arranged repeatedly in a shape, thereby obtaining a core material with extremely high mechanical strength. By providing the panel electrode 4 at the apex of the rhombus, the panel 1 is light and excellent in mechanical strength.

  In the embodiment of FIG. 5, the panel 1 can be configured by using the honeycomb core as a core material in the same manner as the illustrated embodiment of FIG. 4. The number of panel electrodes 4 to be used is small under the condition that the panel electrodes 4 are arranged at regular intervals.

  As shown in FIGS. 6 and 7, the large number of panel electrodes 4 allow one electrode 4 a to be intermittently connected to the power line 15 of the indoor wiring 14 via the selector 5, and the other electrode 4 b to be directly connected to the ground line 15. Connected.

  The selector 5 receives a switching command signal from the detection body 11 that receives the power feeding command signal from the power feeding body 18 and decodes it, and a decoding unit 6 that is obtained by decoding the switching command signal. In accordance with the decoding signal, the switch unit 7 is configured to intermittently connect the one electrode 4a to the power line 15.

  The detector 11 detects a power supply command signal such as an electromagnetic wave, a magnetic field, an electric field, vibration, light, a sound wave, and a current from the power supply 18, and a power supply command signal received by the detection unit 12. It comprises an analysis unit 13 that analyzes and converts it into a switching command signal and sends it to the selector 5.

  In the case of the embodiment shown in FIG. 6, the detector 11 is provided for each selector 5. In this case, the power supply command signal from the power supply 18 includes an electromagnetic wave, a magnetic field, an electric field, vibration, and a current. In the case of the embodiment shown in FIG. 7, the switching command signal from the independently provided detector 11 is transmitted to the target selector 5 via the dedicated signal line 17. Therefore, as the power supply command signal from the power supply body 18, electromagnetic waves, light, or even sound waves are suitable.

  FIGS. 8 and 9 show a configuration example relating to the detection body 11 corresponding to the embodiment shown in FIG. 7, and the power supply command signal from the power supply body 18 that is self-running on the panel 1 is an electromagnetic wave. In this case, as shown in FIG. 8, when the detection unit 12 of the detection body 11 provided in the vicinity of the panel 1 is configured by an antenna and the power supply command signal is light, the detection is performed as shown in FIG. The unit 12 is configured by a camera that receives the power supply 18 as an image, and the received power supply command signal is analyzed by the analysis unit 13 to select the position of the power supply 18, that is, a selector that should receive the switching command signal. 5 and a switching command signal designating the power requested by the power supply 18 is sent to the signal line 17.

  6 and 7 includes a load 19 such as a motor, a camera, and a sensor, a control unit 20 that controls the operation of the load 19 and power supply, and a part of the supplied power. A leg portion including a stored power storage unit 21, a rectification unit 22 that adapts supplied power to the load 19, a power supply command signal generation unit 23 that radiates a power supply command signal, and at least a pair of power supply electrodes 24 Or it is comprised from the electric power feeding electrode body 25 which is a wheel for driving | running | working.

  FIG. 10 shows an example in which a panel unit 2 is configured by dividing a group of a desired number of adjacent panel electrodes 4, and in a configuration in which the panel electrodes 4 positioned at each vertex of a square are repeatedly arranged, The panel unit 2 is composed of a total of 16 panel electrodes 4 adjacent to each other in four columns, and each panel unit 2 has the same number because the number of row and column panel electrodes 4 is an even number. As shown in FIG. 10, one electrode 4a and the other electrode 4b are alternately arranged in a matrix in the entire panel 1, as shown in FIG. Will be able to.

  FIG. 11 shows a connection configuration example of each panel electrode 4 to the indoor wiring 14 in one row of the panel electrodes 4 of the panel unit 2 shown in FIG. 10, and two one electrodes 4 a are connected to one selector 5. Although the common connection state is shown, the common connection of the two one electrodes 4a to the selector 5 is exactly the same in the other columns of the panel electrodes 4 in the panel unit 2, and therefore, it is shown in FIG. In one panel unit 2, eight one electrodes 4 a are commonly connected to one selector 5 as shown in FIG. 12.

  FIG. 13 shows an example of a configuration in which the switch unit 7 of the selector 5 is composed of an AC switch 8 and a DC switch 9, and the combination of the AC switch 8 and the DC switch 9 is integrated. It is composed of two AC power lines 15 a that form a single-phase three-wire AC line in combination with the ground line 16, and one DC power line 15 b that forms a DC line in combination with the ground line 16.

  In the embodiment shown in FIG. 13, the decoding unit 6 has a self-holding function, and receives a power supply command signal or during a preset time, and further, a dedicated release command. The switch switching state of the AC switch 8 or the DC switch 9 is held until the voltage is received, and the voltage at the output terminals of the AC switch 8 and the DC switch 9 and the output terminal of the overcurrent protection element 10 is monitored by the decoding unit 6. By doing so, it is possible to notify the information at the time of abnormality, and it is also possible to activate the wireless LAN by the decoding unit 6.

  The overcurrent protection element 10 protects the switch unit 7 by preventing the passage of overcurrent. The overcurrent protection element 10 may be a fuse type or active. A mold whose function can be restored may be used.

  As shown in FIGS. 14A and 14B, the switch unit 7 includes a first fixed contact connected to the AC power line 15a and a second fixed contact connected to the DC power line 15b. And a switching connection to any one of the third fixed contacts connected to the ground line 16 or opened. That is, the AC switch 8 and the DC switch 9 are configured in a state where the switching contact is shared.

  The upper table of FIGS. 14A and 14B shows the switch operation states according to the contents of the input switching command signal.

  FIG. 15 shows an example in which the AC switch 8 and the DC switch 9 of the switch unit 7 are configured independently of each other without sharing the switching contact in the embodiment shown in FIG. (A) and (b) show the configurations of the AC switch 8 and the DC switch 9, and the upper table shows the switch operation state according to the contents of the input switching command signal. In the switch configuration example shown in FIG. 16, the disclosure of an example in which the third fixed contact is opened is omitted.

  The embodiment shown in FIG. 15 has a configuration in which a detection body 11 is assembled to each selector 5, and the detection unit 12 of the detection body 11 is, for example, in the form shown in the plan view of FIG. It is attached to each panel unit 2.

  FIG. 18 shows an example in which the detection body 11 is configured with an RF-ID tag with an external output terminal in the embodiment shown in FIG. 15. In the embodiment shown in FIG. 3 is made of a material that does not interfere with high-frequency electromagnetic induction.

  The RF-ID tag that constitutes the detector 11 has a detector 12 that is an antenna that can receive a high-frequency electromagnetic wave signal that is a power feed command signal from a reader / writer that constitutes a power feed command signal generator 23 of the power feeder 18. Then, the content of the received power supply command signal is determined by the analysis unit 13 which is an IC chip, and is output to the selector 5 as a switching command signal. Specifically, the switching command signal is the content of the power supply command signal. Can be specified by 2 bits (4 cases can be specified).

It is an external appearance perspective view of the panel which shows one embodiment of this invention. It is a fragmentary top view which shows the example of the 1st arrangement | sequence form of a panel electrode. It is a fragmentary top view which shows the 2nd example of an arrangement | sequence form of a panel electrode. It is a fragmentary top view which shows the 3rd example of an arrangement | sequence form of a panel electrode. It is a fragmentary top view which shows the 4th example of a sequence form of a panel electrode. It is explanatory drawing which shows the 1st electrical relationship of the panel and electric power feeding body by this invention. It is explanatory drawing which shows the 2nd electrical relationship of the panel and electric power feeding body by this invention. It is explanatory drawing which shows the 1st structural example of the detection body in the Example of FIG. It is explanatory drawing which shows the 2nd structural example of the detection body in the Example of FIG. It is a top view which shows the combination of the panel unit of one example of embodiment of this invention. FIG. 11 is an electrical connection diagram illustrating a relationship between the panel electrode of FIG. 10 and a selector. FIG. 11 is an electrical connection diagram in the panel unit of FIG. 10. FIG. 6 is an electrical connection diagram in which an example of a selector corresponding to an AC / DC power supply is assembled. It is explanatory drawing which shows the structure of the switch part of FIG. 13, and an operation | movement form. It is an electrical connection diagram which assembled | attached the other example of the selector corresponding to AC / DC power supply. It is explanatory drawing which shows the structure of the switch part of FIG. 15, and an operation | movement form. It is a top view which shows the arrangement | sequence of the detection body in embodiment of FIG. FIG. 16 is an electrical connection diagram in which the detection body of the embodiment of FIG. 15 is an RF-ID tag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Panel 2; Panel unit 3; Panel surface 4; Panel electrode 4a; One electrode 4b; Other electrode 5; Selector 6; Decoding part 7; Switch part 8; AC switch 9; Detection unit 12; Detection unit 13; Analysis unit 14; Indoor wiring 15; Power line 15a; AC power line 15b; DC power line 16; Ground line 17; Signal line 18; Power supply unit 19; Load 20; Control unit 21; Rectification part 23; Feeding command signal generation part 24; Feeding electrode 25; Feeding electrode body

Claims (13)

  A large number of panel electrodes (4) are repeatedly arranged on the panel surface (3) of the panel (1) based on a certain rule, the large number of panel electrodes (4) are divided into two groups, and the adjacent panels The electrode (4) is included in another group, and outputs a switching command signal based on a power feeding command signal that informs the approach or contact of the power feeding body (18) that is a power feeding object to the panel electrode (4). And a selector (5) that decodes a switching command signal from the detecting body (11) and performs a switch switching operation, and is included in one group of the panel electrodes (4) One electrode (4a) is connected to the power line (15) of the indoor wiring (14) via the selector (5) so as to be intermittent, and the other electrode (4b) included in the other group of the panel electrode (4). A cordless power supply panel, characterized in that connected to the ground line (16) of the interior wiring (14).   The cordless power supply panel according to claim 1, wherein a large number of panel electrodes (4) are arranged repeatedly at each vertex of a square.   The cordless power supply panel according to claim 1, wherein a plurality of panel electrodes (4) are arranged repeatedly at a vertex of a rectangle.   The cordless power supply panel according to claim 1, wherein a large number of panel electrodes (4) are arranged repeatedly at each vertex of the rhombus.   The cordless power supply panel according to claim 1, wherein a plurality of panel electrodes (4) are arranged repeatedly at each vertex of a regular hexagon.   The selector (5) has a decoding unit (6) for decoding the switching command signal, and a switch unit (7) for switching and connecting one electrode (4a) to the power line (15) in accordance with the decoding signal from the decoding unit (6). The cordless power supply panel according to any one of claims 1 to 5, comprising:   The switching contact of the switch section (7) of the selector (5) other than the power line (15) is any one of a switching contact to the ground line (16) and a switching contact to the open terminal. 6. The cordless power supply panel according to 6.   The detection body (11) detects a power supply command signal from the power supply body (18), and analyzes the power supply command signal detected by the detection section (12) and outputs a switching command signal. The cordless power supply panel according to any one of claims 1 to 7, comprising an analysis unit (13).   The cordless power supply panel according to any one of claims 1 to 8, wherein the power line (15) of the indoor wiring (14) is one or both of an AC power line (15a) and a DC power line (15b).   The power line (15) is composed of an AC power line (15a) and a DC power line (15b), and the switch part (7) of the selector (5) is switched and connected to the AC power line (15a). The cordless power supply panel according to claim 6 or 7, comprising an AC switch (8) and a DC switch (9) for switching and connecting the one electrode (4a) to a DC power line (15b).   The cordless power supply panel according to claim 10, wherein the switching sections of the AC switch (8) and the DC switch (9) are made common.   A group of a desired number of adjacent panel electrodes (4) is divided into a panel unit (2), and a plurality of one electrodes (4a) of the panel unit (2) are commonly connected to one selector (5). The cordless power supply panel according to any one of claims 1 to 11.   The cordless power supply panel according to claim 12, wherein the number of the panel electrodes (4) in the arrangement direction is an even number.

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