JP2001309579A - Non-contact power feeding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact power feeding apparatus which is composed of a cordless device which is fed with electrical power and a device to feed the power to the cordless device with non-ontact basis, assures easier connection and disconnection from the power supply for the use of the cordless device on a furniture or the like and flexibility in use that the device to supply the power does not require a wide area, does not deteriorate the function and design of the furnitures, also assures easier maintenance such as the cleaning, and easily identifies layout position of the cordless device in supplying the power thereto. SOLUTION: A primary coil 4 for power to receive the electrical power is provided on a furniture 1. A secondary coil 9 for power to be allocated within a magnetic flux of the primary coil 4 for power under the condition that it is allocated in a predetermined allocation area for the furniture 1 is also provided to the cordless device 2. A notifying means 7 to notify the predetermined allocation position of the cordless device 2 for the furniture 1 is also provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contactless power supply device comprising a cordless device and a power supply device for supplying power to the cordless device without contact.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 31, for example, a furniture 1 has an outlet 56 at one or more places, and the outlet 56 is connected to an electric device 2 such as a pot or a lighting fixture. ′, The electric equipment 2 ′ can be placed on the furniture 1 and used. A power cord 43 for supplying power to the outlet 56 is connected to the furniture 1, and a power plug 8 provided at the end of the power cord 43 is provided in a home. And plug it into a commercial power outlet.

However, in such prior art,
The power cord 52 is provided on the electric device 2 ′, and the power plug 53 provided at the end of the power cord 52 is inserted into the outlet outlet 56 of the furniture 1. This would be a hindrance when working on the furniture 1.
If the outlet 1 is provided in the furniture 1 in this manner, the appearance of the furniture 1 is impaired, and if the outlet 56 is provided on the back of the furniture 1 so as to be inconspicuous, the electrical device 2 ' The workability when plugging the power plug 53 into the outlet 56 or pulling out the power plug 53 from the outlet 56 becomes poor. In addition, dust and the like easily accumulate in the insertion hole provided in the outlet insertion port 56, and cleaning is troublesome.

[0004] On the other hand, a method of supplying electric power in a non-contact manner is well known, and there are two methods of using the supplied electric power: a method of using the electric power as driving power for an instrument, and a method of generating eddy current. Then, a method is used in which heat is generated and the heat is used. As an example of the former, FIG.
As shown in FIG. 32 (b), there is an electromagnetic cooker 55 for heating a pot 54 and the like as an example of the latter.

FIG. 22 is a block diagram showing a circuit configuration in the case where electric power is supplied without contact and used as driving power for the electric equipment 2 '.

[0006] A rectifier circuit 36 connected to a commercial AC power supply 44 is formed in a circuit provided in a device that supplies power, such as a charger 51, and rectified by the rectifier circuit 36. A switching circuit 35 to which a direct current is supplied is formed. This switching circuit 35
Converts the supplied DC current into a predetermined high-frequency current. The high-frequency current generated by the switching circuit 35 is supplied to the power primary coil 4. The switching circuit 35 is connected to a control circuit 37 that issues a control signal for controlling the output of the high-frequency current generated by the switching circuit 35. This control circuit 37
Is connected to a signal primary coil 40, and the operation of the control circuit 37 is controlled by an induced current generated in the signal primary coil 40.

[0007] A circuit provided in a device to which power is supplied, such as the cellular phone main body 50, includes a power secondary coil 9 arranged in a magnetic flux generated by the power primary coil 4. An induction current is generated in the power secondary coil 9 by the magnetic flux generated in the power primary coil 4. An output circuit 38 is connected to the power secondary coil 9, and the induced current is supplied to the output circuit 38 to perform processing such as rectification and frequency conversion. The processed current is supplied to a main circuit 39 for driving the electric device 2 ', and is used as a drive source for the electric device 2'. A secondary coil 41 for signals is connected to the output circuit 38.
The output circuit 38 outputs a high-frequency signal corresponding to the output level of the induced current supplied to the output circuit 38 to the signal secondary coil 41.
Output.

When a circuit having the above configuration is provided in a device such as the charger 51 and the portable telephone body 50, the charger 51
By attaching the mobile phone main body 50 to the mobile phone, power can be supplied to the mobile phone main body 50 without contact. Power supply is for power 1 to which high-frequency current is applied.
This is performed by arranging the power secondary coil 9 in the magnetic flux generated by the secondary coil 4 to generate an induced current in the power secondary coil 9. At this time, the output of the supplied power is adjusted by arranging the signal primary coil 40 in a magnetic flux generated by outputting a high-frequency signal corresponding to the output level of the supplied power to the signal secondary coil 41. Thus, the induction power is generated in the signal primary coil 40 in accordance with the output level of the supplied power, and this induction power is input to the switching circuit 35 as a control signal.

On the other hand, FIG. 33 shows a circuit configuration in the case where electric power is supplied in a non-contact manner to generate eddy current to generate heat and use this heat.

A circuit provided in an electric power supply side device such as an electromagnetic cooker 55 includes a rectifier circuit 36, a switching circuit 35, and a power primary coil 4 similar to the circuit shown in FIG. The AC current supplied from the commercial AC power supply 44 is rectified by the rectifier circuit 36, the rectified DC current is converted into a high-frequency current by the switching circuit 35, and the high-frequency current is supplied to the power primary coil 4. I am trying to do it. In addition, metal cooking utensils such as the pan 54
It is arranged in a magnetic flux generated by the power primary coil 4, and the magnetic flux generates an eddy current in the metal cooking utensil to generate heat.

When power is supplied in a non-contact manner in this way, there is no need to connect a device that supplies power and a device that is supplied with a cord 52 or the like.

[0012]

However, even if the power is supplied in a non-contact manner as described above, the devices that supply the power, such as the charger 51 and the electromagnetic cooker 55, have the following disadvantages. Also, the cord 52 must be provided and connected to the power plug 53 and the outlet outlet 56, and the cord 52 becomes an obstacle when used on the furniture 1 or the like. Also, when not in use, the furniture 1 must be cleared from above, which is troublesome.

Further, as a technique in which the electromagnetic cooker 55 is combined with the furniture 1, those disclosed in Japanese Patent Application Laid-Open Nos. 5-285018 and 7-245180 have been proposed. However, such a conventional technique can only supply power to the electromagnetic cooker 55, and cannot supply power to a cordless appliance without contact and use that power as driving power.

The present invention has been made in view of the above points, and comprises a cordless device to which power is supplied, and a device for supplying power to the cordless device in a contactless manner.
The power supplied to the cordless device can be used as drive power, making it easy to connect to and disconnect from the power supply when using the cordless device on furniture, and the device that supplies power takes up less space It is easy to use, etc., does not impair the functionality and design of the furniture, can easily perform maintenance such as cleaning, and easily identifies the position of the cordless device when supplying power to the cordless device It is an object of the present invention to provide a non-contact type power supply device capable of performing the following.

[0015]

According to a first aspect of the present invention, there is provided a contactless power supply device, comprising: a furniture provided with a power primary coil to which power is supplied; A cordless device 2 having a power secondary coil 9 disposed in a magnetic flux by the power primary coil 4 in a state where the cordless device 2 is disposed at a position, and a notifying unit for notifying a predetermined arrangement position of the cordless device 2 with respect to the furniture 1. 7 is provided.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a light emitting diode is provided as the notifying means 7.

According to a third aspect of the present invention, in addition to the configuration of the first aspect, an illumination device 18 is provided as the notification means 7.

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect, a sound generator 21 is provided as the notification means 7.

According to a fifth aspect of the present invention, in addition to the configuration of the first aspect, the notifying means 7 is constituted by magnets 22 provided respectively on the furniture 1 and the cordless device 2. It is assumed that.

According to a sixth aspect of the present invention, in addition to the configuration of the first aspect, notification is provided by providing a notification member 23 separate from the furniture 1 at a predetermined arrangement position of the cordless device 2 in the furniture 1. It is characterized by comprising the means 7.

According to a seventh aspect of the present invention, in addition to the configuration of the sixth aspect, the power transmission unit 3 having the power secondary coil 9 is formed integrally with the notification member 23. Things.

According to an eighth aspect of the present invention, in addition to the configuration according to any one of the first to seventh aspects, an arrangement position of the cordless device 2 disposed on the furniture 1 and a predetermined position of the cordless device 2 on the furniture 1 are determined. And a notifying means 7 for notifying the degree of positional deviation from the arrangement position of.

According to a ninth aspect of the present invention, in addition to the configuration of any one of the first to eighth aspects, the power supply 1 is provided in a state in which the cordless device 2 is arranged at a predetermined position with respect to the furniture 1. The furniture 1 or the cordless device 2 is provided with a magnetic body 34 disposed between the secondary coil 4 and the power secondary coil 9.

The invention described in claim 10 is the first invention.
In addition to any of the above configurations, the cordless device 2 is provided with a rechargeable battery 48 that is charged by the power supplied to the cordless device 2.

[0025]

Embodiments of the present invention will be described below.

In FIG. 1, a table 1a is used as the furniture 1, and an electric pot 2a is used as the cordless device 2.

An electric power transmission unit 3 is provided on the inner surface side of the furniture member 11 (the top plate 11a of the table 1a in FIG. 1) constituting the upper surface of the furniture 1, and the electric power transmission unit 3 is a case body as an exterior. 6, a power primary coil 4 and a primary circuit 5 for supplying a high-frequency current to the power primary coil 4 are provided. A power supply cord 43 is connected to the power transmission unit 3. Power can be supplied to the primary circuit 5 by connecting the power plug 8 of the power supply cord 43 to an outlet of a commercial power outlet. It has become.

On the other hand, a power secondary coil 9 is provided at the bottom of the cordless device 2, and an output voltage (secondary voltage) for driving the cordless device 2 from the induced current generated in the power secondary coil 9. Side output voltage), and a secondary circuit 10 for operating the cordless device 2 with this output voltage is also provided.

Then, the cordless device 2 is connected to the furniture member 11.
The power secondary coil 9 is arranged in a magnetic flux generated when a high-frequency current is supplied to the power primary coil 4 when the power secondary coil 9 is arranged at a predetermined arrangement position.

In such a configuration, power is supplied to the cordless device 2 in a contactless manner by magnetic coupling. That is, when the cordless device 2 is arranged at a predetermined arrangement position on the furniture member 11 and power is supplied to the power transmission unit 3 via the power cord 43 from the outlet of the commercial power outlet,
A magnetic flux is generated in the power primary coil 4 as indicated by an arrow in FIG. 3, and an induced current is generated in the power secondary coil 9 of the cordless device 2 disposed in the magnetic flux. Then, the secondary side output voltage is obtained in the secondary side circuit 10 in the cordless device 2.

In the example shown in FIG. 2, a cabinet 1b is used as the furniture 1, and a lighting fixture 2b is used as the cordless device 2. On the inner surface side of the furniture member 11 (the upper surface plate 11b of the chest 1b in FIG. 2) constituting the upper surface of the furniture 1, the same power transmission unit 3 as described above is provided. A secondary coil 9 for electric power and a secondary circuit 10 similar to those described above are provided.

In such a configuration, the cordless device 2 is disposed on the upper plate of the furniture 1 at a predetermined position where the power transmission unit 3 is provided, and the power cord 43 is inserted from the outlet of the commercial power outlet. When power is supplied to the power transmission unit 3 via the power transmission unit 3, a magnetic flux is generated in the power primary coil 4 as shown in FIG. 3, and the magnetic flux is generated in the power secondary coil 9 of the cordless device 2 disposed in the magnetic flux. An induced current is generated. Then, the induced current is supplied to the secondary circuit 10 in the cordless device 2 to obtain a secondary output voltage.

Although not shown in FIGS. 1 and 2,
In the present invention, a notifying means 7 for notifying a predetermined arrangement position of the cordless device 2 with respect to the furniture 1 is provided. The informing means 7 includes the cordless device 2 in the furniture 1
May be directly displayed at the predetermined notification position, or may be provided when the cordless device 2 is placed on the furniture 1 to notify whether or not the cordless device is placed at the predetermined placement position. The notification means can be provided in either the furniture 1 or the cordless device 2. Details of the configuration of the notification unit 7 will be described later.

An example of the circuit configuration in the power transmission unit 3 provided in the furniture 1 and the circuit configuration in the cordless device 2 will be described in further detail.

As shown in the block diagram of FIG.
A power primary coil 4 and a signal primary coil 40 are provided in the power transmission unit 3 on the side. As the primary circuit 5, a switching circuit 35, a control circuit 37, and a rectifier circuit 36, which are circuits for supplying a high-frequency current to the power primary coil 4, are formed. The rectifier circuit 36 is connected to the commercial AC power supply 44 and converts an AC current supplied from the commercial AC power supply 44 into a DC current. The switching circuit 35 converts the DC current supplied from the rectifier circuit 36 into a high-frequency current by high-frequency switching, and supplies the high-frequency current to the power primary coil 4. The control circuit 37 controls the output of the high-frequency current generated by the switching circuit 35 based on the induced current supplied from the signal primary coil 40.

On the other hand, the cordless device 2 is provided with a power secondary coil 9 and a signal secondary coil 41.
The output circuit 38 and the main body circuit 3 are used as the secondary circuit 10.
9 are formed. The output circuit 38 generates a secondary output voltage for driving the cordless device 2 by supplying the induced current generated to the power secondary coil 9. A main circuit 39, which is a circuit for driving the cordless device 2, is connected to an output circuit 38. The main circuit 39 is driven by receiving a secondary output voltage supplied from the output circuit 38. The output circuit 38 supplies a signal current corresponding to the output of the secondary output voltage supplied to the main circuit 39 to the signal secondary coil 41 under the control of the main circuit 39.

In a state where the cordless device 2 is arranged at a predetermined arrangement position with respect to the furniture 1, the power primary coil 4 and the power secondary coil 9 are opposed to each other in a state where they are aligned. And the signal primary coil 40 and the signal secondary coil 41 are arranged so as to face each other in an aligned state. In this state, when an AC current is supplied from the commercial AC power supply 44 to the power transmission unit 3 on the furniture 1 side, the power primary coil 4
Is supplied with a high-frequency current, and a magnetic flux is generated around the power primary coil 4. The power secondary coil 9 is disposed in the magnetic flux, and the resulting induced current is supplied to the output circuit 38 to generate a secondary output voltage, which is supplied to the main circuit 39. When a signal current corresponding to the output of the secondary output voltage is supplied to the signal secondary coil 41, a magnetic flux is generated around the signal secondary coil 41. The signal primary coil 40 is arranged in the magnetic flux, and the induced current generated as a result is supplied to the control circuit 37 to generate a control signal.
, The output of the high-frequency current supplied to the power secondary coil 9 is feedback-controlled.

At this time, if the pulse waveform of the high-frequency current supplied to the power primary coil 4 is a triangular wave rising to the right as shown in FIG. In the off period, an induced current having a triangular pulse waveform falling to the right is generated.

When the cordless device 2 is separated from the predetermined arrangement position, and when the cordless device 2 is sufficiently separated from the predetermined arrangement position, no induced current is generated in the power secondary coil 9, so that the signal No signal current is supplied to the secondary coil for signal 41, and no induced current is generated in the primary coil for signal 40. When the cordless device 2 approaches the predetermined arrangement position from this state, an induced current starts to be generated in the power secondary coil 9 and the amplitude of the pulse increases. Accordingly, the value of the secondary output voltage output from the output circuit 38 to the main circuit 39 also increases. When the cordless device 2 is arranged at a predetermined arrangement position, the value of the secondary output voltage output from the output circuit 38 is
It is controlled so as to be a predetermined value for driving the main body circuit 39. In the figure, a predetermined voltage value of the secondary output voltage is indicated as 100%.

Here, the degree of coincidence described at the bottom of the figure indicates a measure of how much the positions of the primary power coil and the secondary power coil 9 are aligned. .

In the example shown in the figure, when the value of the secondary output voltage exceeds 120% of the predetermined value, a predetermined control signal is output from the output circuit 38 to the control circuit 37, and the control circuit is accordingly operated. 37 is controlled to supply a predetermined signal current (in the illustrated example, three continuous pulse currents) to the signal secondary coil 41. At this time, the signal primary coil 4
At 0, an induced current (in the example shown, three continuous pulse currents) corresponding to the pulse current supplied to the signal secondary coil 41 is generated and input to the switching circuit 35, and the switching circuit 35 changes the switching frequency accordingly. Change
Control is performed so that the value of the secondary output voltage decreases (D in FIG.
Area). By controlling the value of the secondary output voltage to decrease in this way, when the secondary output voltage falls below a predetermined value indicated as 100% in the figure,
A predetermined control signal is output from the output circuit 38 to the control circuit 37, and the control circuit 37 responds accordingly to the signal secondary coil 4.
1 is a predetermined signal current (two continuous pulse currents in the example shown)
Is controlled to be supplied. At this time, an induced current (two continuous pulse currents in the illustrated example) corresponding to the pulse current supplied to the signal secondary coil 41 is applied to the signal primary coil 40.
Is generated and input to the switching circuit 35. The switching circuit 35 returns the switching frequency to the original value and controls the secondary side output voltage to increase. By performing the feedback control on the secondary side output voltage value in this way, the secondary side output voltage value is maintained within a certain range.

When the cordless device 2 is not placed at a predetermined position, the number of pulses of the current supplied to the power primary coil 4 from the switching circuit 35 on the power transmission unit 3 side of the furniture 1 is reduced. As a result, the output of the current is reduced to reduce the power consumption, and when the cordless device 2 is placed at or near the predetermined location, the switching circuit 35 supplies the power primary coil 4 with a predetermined frequency. It can be controlled to supply a high-frequency current. In this case, for example, control as shown in FIG. 25 can be performed. In the illustrated example, when the cordless device 2 is separated from the predetermined arrangement position, a current having a small number of pulses is supplied from the switching circuit 35 to the power primary coil 4 (region A in the drawing). ). At this time, when the cordless device 2 approaches a predetermined arrangement position, an induced current starts to be generated in the power secondary coil 9 and the amplitude of the pulse increases. Accordingly, the output circuit 38
The secondary-side output voltage output to the main circuit 39 also increases. And the secondary side output voltage is 95% of the predetermined value.
Is exceeded, the output circuit 38 supplies a predetermined signal current (one pulse current in the figure) to the signal secondary coil 41, and an induced current (one pulse current in the figure) corresponding to the signal current is supplied to the signal secondary coil 41.
It occurs in the next coil 40 (area B in the figure). When this induced current is detected by the control circuit 37, the control circuit 37
Is configured to input a control signal to the switching circuit 35, and in accordance with the control signal, the switching circuit 35 is controlled to change the switching frequency and supply a high-frequency current having a predetermined frequency to the power primary coil 4. .

In the area C in the figure, although the secondary output voltage has reached 95% of the predetermined value, the signal primary coil 40 has an induction required for changing the switching frequency. No current is generated and the cordless device 2
Shows a time point when is located at or near a predetermined arrangement position, and a response delay until this is detected.

The circuit configuration in the power transmission unit 3 provided in the furniture 1 and the circuit configuration in the cordless device 2 are shown in FIG.
6 can be adopted. Here, FIG.
In addition to the circuit configuration shown in FIG. 2, a detection circuit 46 connected to the switching circuit 35 is provided, and an auxiliary winding coil 47 is connected to the detection circuit 46 and the auxiliary winding coil 4
7 is arranged on the side of the power primary coil 4.
Even in such a circuit configuration, the power supply to the cordless device 2 and the feedback control of the secondary output voltage value can be performed under the control similar to the case shown in FIG. Also in the configuration shown in FIG. 26, power consumption can be reduced in the same manner as in the circuit configuration shown in FIG.

In the example shown in FIG. 26, it is also possible to control to reduce the power consumption based on the detection result of the value of the induced current generated in the auxiliary winding coil 47.

First, in the configuration shown in FIG.
As shown in FIGS. 28A to 28D, FIG. 28A shows an operation when the cordless device 2 is arranged on the furniture 1 and the control for reducing power consumption is not performed. In the illustrated example, first, when a high-frequency current having a pulse waveform of a right-upward triangular wave is supplied to the power primary coil 4, the power-down secondary coil 9 is supplied with a right-downward triangular wave during an off period of the high-frequency current. An induced current having a pulse waveform is generated.

When the cordless device 2 is separated from the predetermined arrangement position as shown in FIG. 29B, and when the cordless device 2 is sufficiently separated from the predetermined arrangement position, it is also shown in FIG. As described above, no induced current is generated in the power secondary coil 9, so that no signal current is supplied to the signal secondary coil 41, and no induced current is generated in the signal primary coil 40. From this state, when the cordless device 2 approaches a predetermined arrangement position as shown in FIG.
As shown in FIG. 29 (f), as the induced current starts to be generated in the power secondary coil 9, the pulse amplitude increases. Then, as shown in FIG. 29D, when the cordless device 2 is arranged at a predetermined arrangement position and the amplitude of the induced current generated in the current secondary coil exceeds a predetermined value (hereinafter, referred to as a power supply level). 29 (g), the value of the secondary output voltage output from the output circuit 38 is controlled to be a predetermined value for driving the main circuit 39. On the other hand, in the auxiliary winding coil 47, during the off period of the pulse waveform of the induction current generated in the power secondary coil 9, an induction current having a triangular wave pulse waveform rising to the right is generated. As the amplitude of the induced current generated in the coil 9 increases, the amplitude of the induced current generated in the auxiliary winding coil 47 increases.

The degree of coincidence described at the bottom of the figure indicates a measure of how much the arrangement position of the power primary coil and the power secondary coil 9 is aligned.

Here, the value of the amplitude of the induced current generated in the auxiliary winding coil 47 when the amplitude of the induced current generated in the power secondary coil 9 reaches the power supply level is defined as the position detection determination level. Upon detecting that the value of the induced current generated in the auxiliary winding coil 47 has reached the position detection determination level, the detection circuit 46 inputs a predetermined control signal to the switching circuit 35, and performs switching in accordance with the control signal. The circuit 35 changes the switching frequency and the power 1
It is configured to be controlled to supply a high frequency current of a predetermined frequency to the next coil 4. The region A in FIG. 28 is a region where the amplitude of the induced current generated in the auxiliary winding coil 47 has not reached the position detection determination level, and the region B is the amplitude of the induced current generated in the auxiliary winding coil 47. Indicates an area where the position detection determination level has been reached. A region C is a region where the amplitude of the induced current generated in the power secondary coil 9 has reached the power supply level but the amplitude of the induced current generated in the auxiliary winding coil 47 has not reached the position detection determination level. And shows the response delay between the time when the cordless device 2 is placed at or near the predetermined placement position and the time until this is detected.

As shown in FIG. 4, for example, as the notifying means 7, the upper surface of the furniture member 11 (the top plate 11a of the table 1a in FIG. 4) constituting the upper surface of the furniture 1 and the cordless device 2 (in FIG. In this case, a fitting portion 13 can be formed on the bottom surface of the electric pot 2a) so as to be fitted into and recessed from each other. In the illustrated example, the fitting portion 13 has a fitting protrusion 13 a on the upper surface of the furniture member 11 and a fitting recess 13 on the bottom surface of the cordless device 2.
b. Then, by fitting the fitting portions 13 to each other, the cordless device 2 is arranged at a predetermined arrangement position in the furniture 1.

In this way, the cordless device 2 can be arranged at a predetermined arrangement position on the furniture 1 by fitting the fitting portions 13 into and out of irregularities. However, unevenness is formed on the upper surface of the furniture 1, and there is a problem in that the functionality and design of the furniture 1 are impaired, and cleaning is difficult.

In the example shown in FIG. 5, the notifying means 7 is configured without changing the outer shape of the furniture 1, and is arranged at a predetermined position on the furniture 1, that is, the upper surface of the furniture 1 above the power transmission unit 3. In addition, a visible display is formed.
Specifically, in FIG. 5A, a visible display is formed at a predetermined arrangement position by a coloring portion 12a colored by painting, printing, or the like in a color different from other portions of the upper surface of the furniture 1. . In FIG. 5B, & t is set at a predetermined position on the upper surface of the furniture 1.
A visible display is formed by imprinting the symbol 12b such as imes; In FIG. 5C, a character 1 such as “place” is placed at a predetermined arrangement position on the upper surface of the furniture 1.
2c is printed by painting or printing to form a visible display. Paints, inks, and the like used for giving these indications may be those commonly used. However, if fluorescent paints are used, furniture 1 can be used even in a dark place.
The predetermined arrangement position where the cordless device 2 should be arranged in the above can be recognized.

In the example shown in FIG. 6, an electric device which is controlled to operate when the cordless device 2 is placed at a predetermined position on the furniture 1 is provided as the notifying means 7 on the furniture 1. is there. As such an electrical device, FIG.
In FIG. 6A, a cooling and heating device 15a is provided on the table 1a, and FIG.
In (b), an air purifier 15b is provided on the table 1a. In this case, when the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1, the electric device is activated to notify that the cordless device 2 is arranged at the predetermined arrangement position.

FIG. 23 shows an example of a circuit configuration in a case where the notifying means 7 operating in a state where the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 is provided on the furniture 1.
(A) and FIG. 27 (a).

The circuit configuration shown in FIG. 23A is different from the configuration of FIG. 22 in that the control circuit 37 of the power transmission unit 3 on the furniture 1 side.
The notifying unit 7 is connected to the control unit 37, and the notifying unit 7 is controlled in accordance with a control signal input from the control circuit 37. Then, the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1, and a predetermined signal current is supplied to the signal secondary coil 41, and an induced current corresponding to the signal current is supplied to the signal secondary coil 41.
When the control circuit 37 detects the occurrence in the next coil 40 (see FIGS. 24 and 25 described above), the control circuit 37 activates the notification means 7.

On the other hand, in the circuit configuration shown in FIG. 27A, in addition to the configuration of FIG. 26, the notifying means control circuit 42 is connected to the detecting circuit 46 on the furniture 1 side, and the notifying means control circuit 42 is provided. The notifying unit 7 is connected and provided, and the notifying unit control circuit 42 controls the notifying unit 7 in accordance with an input signal input from the detection circuit 46. Then, when the detection circuit 46 detects that the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 and the induced current generated in the auxiliary winding coil 47 has reached the position detection level (see FIG. 28 described above). The detection circuit 46 inputs a predetermined input signal to the notifying means control circuit 42, and the notifying means control circuit 42 to which the input signal is input operates the notifying means 7.

In the examples shown in FIGS. 7, 8, and 9, an LED (light emitting diode) lamp 14 is provided as the notification means 7 on the furniture 1 or the cordless device 2. The LED lamp 14 is controlled so that the blinking pattern changes when the cordless device 2 is arranged at a predetermined arrangement position and when the cordless device 2 is not arranged at the predetermined arrangement position. Here, the power primary coil 4 on the furniture 1 side and the power secondary coil 9 on the cordless device 2 side are:
Power can be supplied without strict alignment, but strict alignment increases the power transmission efficiency. Therefore, the predetermined position of the cordless device 2 can be accurately determined from the position of the LED lamp 14. LED for identification
Preferably, a lamp 14 is provided.

FIG. 7A shows an arrangement in which an LED drive device 15 having an LED drive circuit is provided inside the side surface of the furniture 1 (table 1a), and the LED drive device 15 blinks on the side surface of the table 1a. The notification means 7 is configured by arranging an LED lamp 14 controlled by. LED drive device 1
5 and the power transmission unit 3 are connected by a signal line.

FIG. 7B shows an informing means 7 by arranging an LED lamp 14 on the side of an electric pot 2a which is a cordless device 2.

FIG. 8 (a) shows a plurality of (four in the figure) power transmission units 3 provided on the back surface of the top plate 11a of the table 1a, which is the furniture 1, corresponding to the installation position of each power transmission unit 3. LED lamp 14 is provided on the upper surface of furniture 1
And the predetermined position of the cordless device 2 is notified by the position of the LED lamp 14.

In FIG. 9, the table 1a which is the furniture 1 is shown.
Around the installation position of the power transmission unit 3 provided on the back surface of
A plurality (three in the figure) of LED lamps 1 on the upper surface of the furniture 1
4, a notifying unit 7 is configured to notify that a portion surrounded by a plurality of LED lamps 14 is a predetermined arrangement position of the cordless device 2.

Here, an LED lamp 14 is provided on the outer surface of the furniture 1.
8B, a through-hole 16 is formed in the furniture member 11 constituting the outer surface of the furniture 1, and the LED lamp 14 is disposed in the through-hole 16 as shown in FIG. The opening outside 16 is closed by using a transparent panel 17 made of acrylic resin or the like, and the outer surface of the furniture member 11 and the outer surface of the transparent panel 17 are formed to be flush.

When the notification means 7 is constituted by the LED lamp 14 in this manner, the circuit configuration can be configured as shown in FIGS.

A circuit configuration in a case where the notifying means 7 which operates differently between the state where the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 and the state where it is not arranged at the predetermined arrangement position is provided on the furniture 1 Are as shown in FIGS. 23A and 27A.

The circuit configuration shown in FIG. 23A is different from the configuration shown in FIG. 22 in that the control circuit 37 of the power transmission unit 3 on the furniture 1 side is used.
The notifying unit 7 is connected to the control unit 37, and the notifying unit 7 is controlled in accordance with a control signal input from the control circuit 37. Then, the cordless device 2 is not arranged at a predetermined arrangement position on the furniture 1, and the signal secondary coil 41 is not arranged.
In the state where the predetermined signal current is not supplied to the first coil and the induced current corresponding thereto is not generated in the primary coil for signal 40, the control circuit 37 controls the notification means 7 to perform the predetermined operation, and the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1, a predetermined signal current is supplied to the signal secondary coil 41, and the control circuit 37 indicates that an induced current corresponding to the signal current is generated in the signal primary coil 40. When detected, the control circuit 37 controls the notification means 7 to perform another predetermined operation (see FIGS. 24 and 25 described above).
reference).

The circuit configuration shown in FIG. 27 (a) is different from the configuration shown in FIG. 26 in that a notifying means control circuit 42 is connected to a detecting circuit 46 on the furniture 1 side. The notifying unit 7 is connected and provided, and the notifying unit control circuit 42 controls the notifying unit 7 in accordance with an input signal input from the detection circuit 46. If the cordless device 2 is not placed at a predetermined position on the furniture 1 and the induced current generated in the auxiliary winding coil 47 has not reached the position detection level, the notification unit control circuit 42 sets the notification unit 7 performs a predetermined operation, and a detection circuit 46 detects that the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 and the induced current generated in the auxiliary winding coil 47 reaches the position detection level. Is detected (see FIG. 28 described above), the detection circuit 46 inputs a predetermined input signal to the notifying means control circuit 42, and the notifying means control circuit 42 to which the input signal has been input turns the notifying means 7 into another predetermined signal. It is configured to control to perform the operation.

On the other hand, the notifying means 7 which operates differently between the state where the cordless device 2 is arranged at the predetermined arrangement position on the furniture 1 and the state where it is not arranged at the predetermined arrangement position.
23 (b) and FIG. 27 (b) show an example of a circuit configuration in which is provided in the cordless device 2.

In the circuit configuration shown in FIG. 23B, in addition to the configuration shown in FIG. 22, an output circuit 38 of the cordless device 2 is provided with a notification means control circuit 42 connected thereto.
2 is connected to the notifying means 7 so that the notifying means control circuit 42 controls the notifying means 7 in accordance with an input signal inputted from the output circuit 38. When the cordless device 2 is not placed at a predetermined position on the furniture 1 and the secondary output voltage generated by the output circuit 38 does not reach the predetermined value, the notification unit control circuit 42 sends the notification unit 7 When the cordless device 2 is controlled to perform a predetermined operation, and the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 and a secondary output voltage of a predetermined value is generated by the output circuit 38, the output circuit 38 notifies the notification means. A predetermined input signal is input to the control circuit 42, and the notification means control circuit 42, to which the input signal is input, is configured to control the notification means 7 to perform another predetermined operation accordingly.

The circuit configuration shown in FIG. 27B is different from the configuration shown in FIG.
8, a notifying means control circuit 42 is connected and provided, and the notifying means 7 is connected to the notifying means control circuit 42. The notifying means is controlled by the notifying means control circuit 42 in accordance with an input signal input from the detection circuit 46. 7 is controlled. If the cordless device 2 is not placed at a predetermined position on the furniture 1 and the induced current generated in the power secondary coil 9 has not reached the power supply level, the notification unit control circuit 42 sets the notification unit 7 controls to perform a predetermined operation, and the output circuit 38 notifies that the induction current generated in the power secondary coil 9 reaches the power supply level when the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1. Is detected, the output circuit 38 inputs a predetermined input signal to the notifying means control circuit 42, and the notifying means control circuit 42 to which the input signal is input controls the notifying means 7 to perform another predetermined operation. (See FIG. 28 described above).

The LED lamp 14 serving as the notification means 7 disposed on the furniture 1 or the cordless device 2 as described above, when the cordless device 2 is disposed at a predetermined position, and when the cordless device 2 is disposed at a predetermined position. FIG. 10 shows an example of a change in the blinking pattern in a case where the flashing pattern is not arranged at the arrangement position. 10 (a) to 10 (c), the upper row shows the blinking pattern of the LED lamp 14 in a state where the cordless device 2 is not arranged at the predetermined arrangement position, and the lower row shows the cordless device 2 having the predetermined arrangement. It shows a blinking pattern of the LED lamp 14 in a state where the LED lamp 14 is arranged at a position, and shows a change between a light-off state and a light-on state of the LED lamp 14 over time. In each blinking pattern, “「 ”indicates a light-off state, and“ ● ”indicates a light-on state, and these are shown in order from left to right over time. FIG.
In the example shown in (a), the LED lamp 14 continues to be turned off when the cordless device 2 is not placed at the predetermined position, and the LED lamp 14 is turned off when the cordless device 2 is placed at the predetermined position. It keeps lighting.
In the example shown in FIG. 10B, when the cordless device 2 is not arranged at a predetermined arrangement position, the LED lamp 14
The LED lamp 14 keeps turning off, and when the cordless device 2 is arranged at a predetermined arrangement position, the LED lamp 14 repeatedly turns on and off and blinks. In the example illustrated in FIG. 10C, both the state where the cordless device 2 is not arranged at the predetermined arrangement position and the state where the cordless device 2 is arranged at the predetermined arrangement position are L.
The ED lamp 14 repeats lighting and extinguishing. However, when the cordless device 2 is located at a predetermined location,
The time during which the LED lamp 14 is turned off is shorter.

Here, when the LED lamp 14 is disposed on the upper surface of the furniture 1 as shown in FIGS.
Even if the D lamp 14 is lit, the cordless device 2 may be placed on the D lamp 14 and the LED lamp 14 may be blocked and become invisible. In this case, as shown in FIG. 10C, even when the cordless device 2 is not arranged at a predetermined arrangement position, the LED lamp 14 is controlled to light or blink, and the LED lamp 14 blinks or lights. If not, it is preferable that the cordless device 2 is arranged above the LED lamp 14 so that it can be identified that the cordless device 2 is arranged at a predetermined arrangement position. Alternatively, the plurality of LED lamps 14 are arranged so as to surround the center of the predetermined arrangement position of the cordless device 2, and are not arranged even when the LED lamps 14 are arranged at the predetermined arrangement position. At any time, one of the LED lamps 14 may be always visible.

As shown in FIGS. 10A to 10C, L
When controlling the ED lamp 14, when the cordless device 2 is placed at a predetermined position, the LED lamp 14 is turned on or blinks for a certain period of time, and then turned off. It is preferable to control so as to start the operation in the case where it is not arranged at a predetermined arrangement position when it is displaced from the position. In this case, power consumption can be reduced. In addition, in order to easily perform an operation in a dark place, FIG.
As shown in (1), it is preferable that the LED lamp 14 is controlled so as to be turned on or blinked both when the cordless device 2 is arranged at a predetermined arrangement position and when it is not arranged.

In the example shown in FIG. 11, an illuminating device 18 is provided as the notifying means 7 to one of the furniture 1 and the cordless device 2. The lighting device 18 is configured such that the lighting state changes when the cordless device 2 is arranged at a predetermined arrangement position and when the cordless device 2 is not arranged at the predetermined arrangement position. . FIG. 11A shows a lighting apparatus 18 provided with a fluorescent lamp 19 mounted on a corner of the upper surface of a table 1a which is the furniture 1, and the circuit configuration thereof is shown in FIG.
It can be configured as shown in FIG. FIG.
(B) is a diagram in which the lighting device 18 is integrally provided on the upper side surface of the electric pot 2a as the cordless device 2, and the circuit configuration is configured as shown in FIG. 23 (b) and FIG. 27 (b). be able to. The lighting device 18 is, for example, a device shown in FIG.
As shown in FIG. 2A, the cordless device 2 is turned on in a state where the cordless device 2 is placed at a predetermined position on the furniture 1, and the cordless device 2 is not placed at a predetermined position on the furniture 1. It is controlled to turn off. Lighting device 1
In the case of using a lamp having two types of illumination lamps, such as a fluorescent lamp 19 and a summer ball 20, as shown in FIG. 12, the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 as shown in FIG. In a state where the cordless device 2 is not placed at a predetermined arrangement position on the furniture 1, the fluorescent lamp 19 is turned off and the Natsume ball 20 is turned on. May be controlled.

FIG. 13 shows an arrangement in which a sound generator 21 such as a buzzer or the like is provided as the notification means 7 in the electric power transmission unit 3 provided in the furniture 1. The cordless device 2
Is notified at a predetermined arrangement position in the furniture 1. The circuit configuration can be configured as shown in FIG. 23 (a) or FIG. 27 (a). For example, when the cordless device 2 is not arranged at a predetermined position, no sound such as a buzzer sound or a sound is generated from the sound generating device 21. Is controlled so as to generate a buzzer sound, voice, and the like. In this case, it is possible to confirm whether or not the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 without facing the furniture 1 or the cordless device 2 and visually recognizing it. Note that the sound generator 21 is not limited to a buzzer or the like, and an appropriate device can be used. In addition, the installation position and configuration of the sound generating device 21, the notification method, and the like are not limited to the configuration illustrated here, and an appropriate configuration can be adopted.

When the notification means 7 is constituted by the LED lamp 14, the lighting device 18, the sound generator 21, etc., the notification means 7 causes the cordless device 2 to be displaced from a predetermined arrangement position on the furniture 1. It can also be configured to notify the user.

For example, when the notification means 7 is constituted by an LED lamp 14, the positional relationship between the cordless device 2 and a predetermined arrangement position on the furniture 1 is determined as shown in FIG.
A state in which the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1 (normal position), a state where the cordless device 2 is slightly away from the predetermined arrangement position from the normal position (close position), and a state where the cordless device 2 is more than the predetermined arrangement position In a state where the influence of the magnetic flux generated in the power primary coil 4 is small but slightly affects the power secondary coil 9 and an induced current is generated (far position), the power primary coil 4
The influence that occurs in the power secondary coil 9 hardly affects the power secondary coil 9, so that the induced current is not generated in the power secondary coil 9 (wrong position), the LED is turned off at the wrong position, In this example, the control is performed such that the light blinks at a slow cycle, blinks at a fast cycle at a near position, and continuously lights at a normal position.

Further, as shown in FIG. 19 (b), the notifying means 7 is constituted by a plurality of (six in the example shown) level lamps arranged in a row, and is provided on the cordless device 2 and the furniture 1. The positional relationship with the predetermined arrangement position is divided into a correct position, an erroneous position, and a correct position and an erroneous position, and divided into a plurality of arrangement positions from a near position to a far position according to the number of level lamps, At the wrong position, all the lamps are turned off at the wrong position, all the lamps are turned on at the correct position, and at multiple positions from the far position to the near position, the lamps are turned on one by one as approaching from the far position to the near position. It is controlled to light up. Here, “□” in the figure indicates a lamp in a turned-off state, and “■” indicates a lamp in a turned-on state.

When the notification means 7 is constituted by a buzzer, for example, as shown in FIG. 20 (a), the positional relationship between the cordless device 2 and a predetermined arrangement position on the furniture 1 is defined as a normal position and a near position. , Distant position, wrong position, the buzzer sound does not sound at the wrong position, and there is no sound.The buzzer sound sounds at a slow cycle at the far position, the buzzer sounds at a fast cycle at the near position, and the buzzer sounds at the normal position. The sound is controlled so as to sound continuously.

When the notification means 7 is constituted by a sound generating device, for example, as shown in FIG. 20B, the positional relationship between the cordless device 2 and a predetermined arrangement position on the furniture 1 is determined.
It is divided into the normal position, the near position, the far position, and the erroneous position. At the erroneous position, a sound such as "departure" is issued, at the distant position, a sound such as "far" is issued, and at the near position, the sound is given Is performed, and a sound such as "installed correctly" is generated at the correct position.

A mechanism for detecting the degree of positional deviation from the predetermined arrangement position of the cordless device 2 by the notification means 7 and notifying the detection result by the notification means 7 will be described.

A case where the circuit configuration is as shown in FIG. 23A will be described. As shown in FIGS. 24 and 25, as the cordless device 2 approaches a predetermined arrangement position and the positions of the power primary coil and the power secondary coil coincide with each other, the electric power is generated in the power secondary coil 9. And the value of the secondary side output voltage increases. Therefore, the output circuit 38 determines the amplitude of the induced current of the power secondary coil 9 and the magnitude of the secondary output voltage.
Detected as the degree of misalignment between the cordless device 2 and a predetermined arrangement position, and a predetermined signal current is supplied to the signal secondary coil 41 according to the degree of the misalignment. At this time, an induced current corresponding to the signal current is generated in the signal primary coil 40, and the control circuit 37 which has detected the induced current determines the position of the cordless device 2 and the predetermined disposition according to the degree of displacement. It controls the notification means 7 as described above.

The case where the circuit configuration is as shown in FIG. 23B will be described. As shown in FIGS. 24 and 25, as the cordless device 2 approaches a predetermined arrangement position and the positions of the power primary coil and the power secondary coil coincide with each other, the value of the secondary-side output voltage increases. It is getting bigger. Therefore, the output circuit 38 determines the amplitude of the induced current of the power secondary coil 9 and the magnitude of the secondary output voltage as the degree of displacement between the cordless device 2 and a predetermined arrangement position. Detected, and according to the degree of this displacement,
A predetermined input signal is input to the notification means control circuit 42. At this time, the notifying unit control circuit 42 controls the notifying unit 7 as described above, according to the degree of displacement between the cordless device 2 and the predetermined arrangement position.

The case where the circuit configuration is as shown in FIG. 27A will be described. As shown in FIG.
As the cordless device 2 approaches the predetermined arrangement position and the positions of the power primary coil and the power secondary coil coincide, the amplitude of the induced power generated in the power secondary coil 9 increases, Accordingly, the auxiliary winding coil 47
In addition, the amplitude of the induced current generated at the time increases. Detection circuit 46
Detects the amplitude of the induced current of the auxiliary winding coil 47 as the degree of misalignment between the cordless device 2 and a predetermined arrangement position. Input the input signal. At this time, the notification means control circuit 42 controls the notification means 7 according to the degree of displacement between the cordless device 2 and the predetermined arrangement position as described above.
Is controlled.

The case where the circuit configuration is as shown in FIG. 27B will be described. As shown in FIG.
As the cordless device 2 approaches the predetermined arrangement position and the positions of the power primary coil and the power secondary coil coincide, the amplitude of the induced power generated in the power secondary coil 9 increases. The output circuit 38 detects the amplitude of the induced current of the power secondary coil 9 as the degree of displacement between the cordless device 2 and a predetermined position, and in accordance with the degree of the displacement, a notification means control circuit. 42, a predetermined input signal is input. At this time, the notification means control circuit 42
The notifying unit 7 is controlled as described above in accordance with the degree of displacement between the cordless device 2 and a predetermined arrangement position.

In the example shown in FIG. 14, in addition to the configuration shown in FIG. 1, two magnets 22 are arranged on the back side of the upper surface plate 11b, which is a member constituting the upper surface of the table 1a as the furniture 1. On the other hand, two magnets 22 are also provided at the bottom of the electric pot 2a, which is the cordless device 2, to constitute the notification means 7. At this time, two magnets 2 arranged on the furniture 1
2 is a primary power coil 4 on each side of the power transmission unit 3
And the cordless device 2
Are arranged on both sides of the power secondary coil 9 so as to sandwich the power secondary coil 9. Then, the cordless device 2 is replaced with the furniture 1
In the state where it is arranged in the above predetermined arrangement position, the electric power primary coil 4 and the electric power secondary coil 9 are arranged so as to face each other, and further, the magnet 22 on the furniture 1 side and the magnet 22 on the cordless device 2 side Are aligned and arranged so that different poles face each other. In this case, when the cordless device 2 is brought close to the vicinity of the predetermined arrangement position on the furniture 1, the attraction force acting between the magnets 22 on the furniture 1 side and the cordless device 2 side causes the cordless device 2 to move to the predetermined arrangement position on the furniture 1. , A predetermined arrangement position of the cordless device 2 in the furniture 1 is notified. After the cordless device 2 is arranged at the predetermined arrangement position, the cordless device 2
The cordless device 2 is held by the attractive force between the two, so that the arrangement position thereof is not easily shifted, and the cordless device 2 can be used stably. Here, the installation position, the number, and the configuration of the magnets 22 are not limited to the above configuration, and an appropriate configuration can be adopted.

In the example shown in FIG. 15, in addition to the configuration shown in FIG. 1, a top plate 11a (furniture member 1) of a table 1a (furniture 1) is provided.
1) a vertical through-hole 2 communicating with the inside of the power transmission unit 3;
5 is formed. In the illustrated example, the case body 6 constituting the exterior of the power transmission unit 3 has a furniture member 11 of the furniture 1 having an upper opening.
Are provided so as to contact the inner surface side of the through hole 25.
Is formed so as to communicate with the inside of the case body 6. Here, a plurality of bosses 27 project from the bottom toward the information inside the case body 6, and a substrate on which the primary circuit 5 is formed is arranged on the bosses. This substrate is fixed to the boss with a fixing tool 28 such as a screw. A power primary coil is arranged on the upper surface of the substrate. This through hole 25
Is formed in a rectangular shape in the illustrated example, and a step portion 26 having an inner diameter smaller than that of the outer surface side and protruding inward is formed on the inner surface side. On the other hand, the notification member 23, which is a separate member from the furniture 1, is formed in a plate shape, and has a size in plan view that is substantially the same as the through hole 25. On the outer peripheral surface of the notification member 23, a step portion 24 having a larger outer shape than the inner surface and protruding outward is formed on the outer surface side, and the outer shape of the notification member 23 on the outer surface side and the through hole 25 are formed. The inner diameter of the notification member 23 and the inner diameter of the through-hole 25 coincide with each other. Then, the notifying member 23 is moved from the outer surface side of the furniture 1 to the through hole 2.
5, the through-hole 25 is formed in the notification member 23.
In this state, the outer surface of the notification member 23 is
Are formed substantially flush with the outer surface of the. The notification member 23 constitutes the notification unit 7. At this time, the stepped portions 24 and 26 of the notification member 23 and the through hole 25 are engaged with each other, thereby preventing the notification member 23 from dropping. The notification member 23 is disposed at a predetermined position of the cordless device 2 in the furniture 1, and by visually checking the notification member 23, the predetermined position of the cordless device 2 can be confirmed. When the notification member 23 is removed, the inside of the power transmission unit 3 is exposed through the through hole 25,
Maintenance of the power primary coil 4 and the circuit of the power transmission unit 3 can be easily performed.

In the example shown in FIG. 16, FIG.
As shown in (b), the notification member 23 and the through hole 25
It is formed in a circular shape in plan view. A notch 29 having a shape in which the step portion 26 is partially cut out is formed on the inner peripheral surface of the through hole 25, and in this notch 29, the inner peripheral surface of the through hole 25 is on the outer surface side. And the inner surface side are formed flush. For this reason, when the notification member 23 is attached to the through hole 25 and one side portion of the notification member 23 disposed in the cutout portion 29 is pressed inward, FIG.
As shown in (2), the other side of the notification member 23 projects outward, so that the notification member 23 can be easily removed from the furniture 1.

In the example shown in FIG. 17, a handle piece 30 protruding laterally from a part of the notification member 23 is extended, while a handle matching the handle piece 30 is provided in the through hole 25. A hole 31 is formed. This handle hole 31
No stepped portion is formed on the inner peripheral surface, and the inner surface side and the outer surface side are formed flush. For this reason, the notification member 23
When the handle piece 30 disposed in the handle hole portion 31 of the notification member 23 is pressed inward in a state where is attached to the through hole 25, the side portion of the notification member 23 opposite to the handle piece 30 is pressed. Project outward, and the notification member 23 can be easily removed from the furniture 1.

The notification member 2 shown in FIGS.
Numeral 3 is a member different from the furniture 1, or if it has a different color from the outer surface of the furniture 1, the predetermined arrangement position of the cordless device 2 can be easily recognized, but it is not a separate member or has the same color. Anything can be used as long as it can be recognized as being separate from the furniture 1. A plurality of pieces may be provided for one piece of furniture 1. Further, it does not have to be formed in a plate shape, and an appropriate configuration can be adopted. Further, the configuration for detaching from the furniture 1 is not limited to the above.

In the example shown in FIG. 18, the notification member 23 and the case body 6 of the power transmission unit 3 are formed integrally.

In FIG. 18A, the case 6 of the power transmission unit 3 is integrally formed on the lower surface of the notification member 23, and the upper surface of the case 6 of the power transmission unit 3 is formed on the notification member 23.
Is closed. The outer peripheral edge of the notification member 23 is formed as a flange 31 projecting outward from the side surface of the case body 6 of the power transmission unit 3. On the other hand, the through-hole 25 formed in the furniture member 11 of the furniture 1 is formed to have substantially the same size as the notification member 23 in a plan view, and a step portion 26 on the inner peripheral surface of which the flange portion 31 is locked. Are formed. Then, the case body 6 of the power transmission unit 3 is inserted into the through hole 25 from outside the furniture member 11 of the furniture 1, and is attached to the furniture 1 by engaging the flange 31 of the notification member 23 with the step 26. At this time, the outer surface of the notification member 23 is formed flush with the outer surface of the furniture member 11 of the furniture 1. In addition, the power transmission unit 3 is easily removed from the furniture 1 by pulling the notification member 23 and the power transmission unit 3 outward from the through hole 25.

In FIG. 18B, the case 6 of the power transmission unit 3 is integrally formed on the lower surface of the notification member 23, and the upper surface of the case 6 of the power transmission unit 3 is connected to the notification member 23.
Is closed. The outer end of the notification member 23 is formed flush with the outer peripheral surface of the case body 6, and a mounting rib 32 projects outward from the outer peripheral surface of the case body 6. On the other hand, the through-hole 25 formed in the furniture member 11 of the furniture 1 has substantially the same planar size as the notification member 23, and the inner peripheral surface thereof is formed flush with the entire surface. . Here, the size of the step between the upper surface of the notification member 23 and the upper surface of the mounting rib 32 and the size of the thickness of the furniture member 11 of the furniture 1 are substantially the same. And the notification member 2
3 is inserted from the inside of the furniture member 11 of the furniture 1 into the through hole 25, and the mounting rib 32 is engaged with the inner surface of the furniture member 11, and the mounting rib 32 and the furniture member 1 are fixed by a fixing tool 33 such as a screw.
1 and the notification member 23 for the furniture 1
And the power transmission unit 3 are attached. Also, by removing the fixing member 33, the case body 6 of the electric power transmission unit 3 becomes the furniture 1
Easily removed from

As described above, the power transmission unit 3 and the notification member 23
Are formed integrally and detachably formed with respect to the furniture 1, maintenance of the power transmission unit 3 is facilitated. The power transmission unit 3 can be replaced at a later time, and the power can be efficiently supplied to the cordless device 2. In addition, the structure of the attachment / detachment method of the integral body of the power transmission unit 3 and the notification member 23 is not limited to the above structure, and an appropriate structure can be applied.

In the example shown in FIG. 21A, a through-hole 49 is formed in the furniture member 11 provided with the power transmission section 3 by being aligned with the primary power coil 4. The magnetic body 34 is provided in the inside. In this manner, as shown in FIG. 21A, when the cordless device 2 is arranged at a predetermined arrangement position with respect to the furniture 1, the power primary coil 4 and the power secondary coil 9 The magnetic body 34 is arranged between them. At this time, the magnetic flux formed around the power primary coil 4 is suppressed from diffusing in the region between the power primary coil 4 and the power secondary coil 9, as shown in FIG. The magnetic flux density around the power secondary coil 9 is higher than in the case where no magnetic material 34 is provided. As a result, in the power secondary coil 9, an induced current is efficiently generated in accordance with the current flowing through the power primary coil 4, and the power supply efficiency is improved.

In the example shown in FIG. 30, the cordless device 2
A rechargeable battery (storage battery) 48 connected to the output circuit 38 is provided so that the rechargeable battery 48 can be charged when power is supplied to the cordless device 2.

In the example shown in FIG. 30A, the output circuit 38
A switch Sw for switching a circuit connection state between a state in which the rechargeable battery 48 is connected to the main body circuit 39 and a state in which the circuit connection state is connected between a state in which the output circuit 38 is connected to the rechargeable battery 48 and a state in which the rechargeable battery 48 is connected to the main body circuit 39 It is. Then, in a state where the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1,
The rechargeable battery 48 is charged by operating the cordless device 2 with the switch Sw connecting the main circuit 39 and the output circuit 38 and switching the switch Sw to connect the rechargeable battery 48 and the main circuit 39. can do. In a state where the cordless device 2 is separated from a predetermined arrangement position on the furniture 1, the power charged in the rechargeable battery 48 is supplied to the main circuit 39, and the cordless device 2 is
Can be operated.

In the example shown in FIG. 30B, the output circuit 38, the main body circuit 39, and the rechargeable battery 48 are connected to each other via the control circuit 45, and the control circuit 45 Output circuit 38, body circuit 39
And the connection state between the battery and the rechargeable battery 48 is controlled. For example, when the cordless device 2 is operated in a state where the cordless device 2 is arranged at a predetermined arrangement position on the furniture 1, when the cordless device 2 is operated, the output circuit 38 and the main body circuit 39 are connected, and the electric power supplied from the furniture 1 side is connected. When the cordless device 2 is operated and the operation of the cordless device 2 is stopped in a state where the cordless device 2 is arranged at a predetermined position on the furniture 1, the output circuit 38 and the rechargeable battery 48 are connected. When the rechargeable battery 48 is charged and the cordless device 2 is operated in a state where the cordless device 2 is separated from a predetermined position on the furniture 1, the main circuit 39 and the rechargeable battery 48 are connected to connect the rechargeable battery 48 to the rechargeable battery 48. The charged power is supplied to the main circuit 39,
The cordless device 2 can be operated.

[0098]

As described above, the contactless power supply device according to the first aspect of the present invention is a furniture provided with a power primary coil to which power is supplied, and arranged at a predetermined arrangement position with respect to the furniture. A cordless device including a power secondary coil disposed in a magnetic flux generated by the power primary coil in a state where the cordless device is installed, and a notifying unit for notifying a predetermined arrangement position of the cordless device with respect to the furniture; Can be supplied to the cordless device by arranging the cordless device at a predetermined position on the furniture, the power supplied to the cordless device can be used as driving power, and the cordless device can be used on the furniture. It is easy to connect to and disconnect from the power supply, and the power supply equipment is easy to use because it does not take up space, does not impair the functionality and design of the furniture, and can be used for cleaning, etc. Maintenance Manual is easy, yet is capable to easily identify the position of the cordless equipment when supplying power to the cordless device.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a light emitting diode is provided as the notification means, so that a user can determine a predetermined position of the cordless device according to an arrangement position and a blinking pattern of the light emitting diode. The arrangement position can be recognized.

According to the third aspect of the present invention, in addition to the configuration of the first aspect, since the lighting device is provided as the notifying means, the user can control the predetermined state of the cordless device by turning on / off the lighting device. The arrangement position can be recognized.

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect, since a sound generating device is provided as a notifying means, the arrangement relationship between the cordless device and the furniture can be identified as in a dark place. Even in the case where it is difficult, the user can easily recognize the predetermined arrangement position of the cordless device by the sound or the sound emitted from the sound generating device.

According to a fifth aspect of the present invention, in addition to the configuration of the first aspect, since the notifying means is constituted by the magnets respectively provided on the furniture and the cordless device, the user can use the magnet by the attraction of the magnet. The predetermined position of the cordless device is easily recognized by a sound or a sound emitted from the sound generating device, and the cordless device is firmly held at the predetermined position by the attraction of the magnet.

According to a sixth aspect of the present invention, in addition to the configuration of the first aspect, a notification member separate from the furniture is provided at a predetermined arrangement position of the cordless device in the furniture. By visually recognizing the arrangement position of the cordless device, it is possible to easily recognize the predetermined arrangement position of the cordless device, and by detaching the information member separate from the furniture from the furniture, the circuit of the furniture side is removed. The maintenance can be easily performed.

According to a seventh aspect of the present invention, in addition to the configuration of the sixth aspect, the power transmission section having the secondary coil for power is formed integrally with the notification member, so that the notification member separate from the furniture is provided. When detaching from the furniture, the power transmission unit can also be detached from the furniture, and the maintenance of the circuit on the furniture side can be performed more easily.

According to an eighth aspect of the present invention, in addition to any one of the first to seventh aspects, the arrangement position of the cordless device arranged on the furniture and the predetermined arrangement position of the cordless device on the furniture are determined. In order to provide a notifying means for notifying the degree of positional deviation between the cordless equipment, it is possible to more easily arrange the cordless device at a predetermined arrangement position on the furniture based on the notification result from this notifying means. is there.

According to a ninth aspect of the present invention, in addition to the configuration according to any one of the first to eighth aspects, the power primary coil is provided in a state where the cordless device is arranged at a predetermined arrangement position with respect to the furniture. Furniture or a cordless device is provided with a magnetic material disposed between the power and the secondary coil for power, so that the magnetic material suppresses the diffusion of magnetic flux, and the magnetic flux density around the power secondary coil is improved. The power supply efficiency to the power supply is improved.

The invention according to claim 10 is the first invention.
In addition to the configuration of any one of (1) to (9), the rechargeable battery that is charged by the power supplied to the cordless device is provided in the cordless device, so that the power of the rechargeable battery can be maintained even when the cordless device is separated from a predetermined position. Can operate the cordless device.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention,
(A) is a perspective view, (b) is AA sectional drawing of (a).

FIG. 2 shows another example of the embodiment of the present invention,
(A) is a perspective view, (b) is a sectional view.

FIG. 3 is a partially enlarged sectional view showing the operation of the exemplary embodiment of the present invention.

FIGS. 4A and 4B show still another example of the embodiment of the present invention, wherein FIG. 4A is a perspective view and FIG.

FIGS. 5A to 5C are perspective views showing still another example of the embodiment of the present invention.

FIGS. 6A and 6B are perspective views showing still another example of the embodiment of the present invention.

FIGS. 7A and 7B are perspective views showing still another example of the embodiment of the present invention.

FIG. 8A is a perspective view showing still another example of the embodiment of the present invention, and FIG. 8B is a partial cross-sectional view.

FIG. 9 is a partial perspective view showing still another example of the embodiment of the present invention.

FIGS. 10A to 10C are conceptual diagrams showing an example of the operation of the embodiment shown in FIGS.

FIGS. 11A and 11B are perspective views showing still another example of the embodiment of the present invention.

FIGS. 12A and 12B are conceptual diagrams showing an example of the operation of the above embodiment.

FIG. 13 is a perspective view showing still another example of the embodiment of the present invention.

FIGS. 14A and 14B show still another example of the embodiment of the present invention, wherein FIG. 14A is a perspective view and FIG. 14B is a partial cross-sectional view.

FIGS. 15A and 15B show still another example of the embodiment of the present invention, wherein FIG. 15A is a perspective view and FIG. 15B is a partial cross-sectional view.

FIGS. 16A and 16B show still another example of the embodiment of the present invention, wherein FIG. 16A is a perspective view, and FIGS. 16B and 16C are partial cross-sectional views.

17A and 17B show still another example of the embodiment of the present invention, in which FIG. 17A is a perspective view, FIG. 17B is a cross-sectional view taken along line AA of FIG. It is -B sectional drawing.

FIGS. 18A and 18B show still another example of the embodiment of the present invention, and FIGS. 18A and 18B are partial cross-sectional views.

FIG. 19A is a conceptual diagram showing an example of the operation of the embodiment shown in any of FIGS. 7 to 9, and FIG. 19B is a conceptual diagram showing an example of the operation of another embodiment.

20 (a) and (b) are conceptual diagrams showing an example of the operation of the embodiment shown in FIG.

FIGS. 21 (a) and 21 (b) are partial cross-sectional views illustrating the operation of still another embodiment of the present invention.

FIG. 22 is a block diagram illustrating an example of a circuit configuration according to the present invention.

FIGS. 23A and 23B are block diagrams each showing another example of the circuit configuration in the present invention.

FIG. 24 shows waveforms of currents flowing through the power primary coil and the power secondary coil in the circuit configurations shown in FIGS.
4 is a graph showing an example of a voltage value of a secondary output voltage and waveforms of currents flowing through a signal secondary coil and a signal primary coil.

FIG. 25 shows waveforms of currents flowing through the power primary coil and the power secondary coil in the circuit configurations shown in FIGS.
It is a graph which shows the voltage value of a secondary output voltage, and another example of the waveform of the electric current which flows into the secondary coil for signals and the primary coil for signals.

FIG. 26 is a block diagram showing still another example of the circuit configuration according to the present invention.

FIGS. 27A and 27B are block diagrams each showing still another example of the circuit configuration in the present invention.

FIGS. 28A and 28B are graphs showing examples of waveforms of currents flowing through a power primary coil, a power secondary coil, and an auxiliary winding coil in the circuit configurations shown in FIGS. 26 and 27, respectively. .

29 (a) to (d) are conceptual diagrams showing an arrangement relationship between furniture and a cordless device, and (e) to (g) show power arrangements corresponding to the arrangement relationships in (b) to (d), respectively. 1
It is a graph which shows an example of the waveform of the electric current which flows into a secondary coil, a power secondary coil, and an auxiliary winding coil.

FIGS. 30A and 30B are schematic cross-sectional views showing still another example of the embodiment of the present invention.

FIGS. 31A and 31B are perspective views each showing a conventional technique.

FIGS. 32 (a) and 32 (b) are perspective views showing still another conventional technique.

FIG. 33 is a block diagram illustrating an example of a circuit configuration according to the related art illustrated in FIG. 32 (b).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Furniture 2 Cordless apparatus 3 Power transmission part 4 Primary coil for power 7 Notification means 9 Secondary coil for power 18 Illumination device 21 Sound generation device 22 Magnet 23 Notification member 34 Magnetic body 48 Rechargeable battery

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenzo Ito 1048 Kazumasa Kadoma, Kadoma City, Osaka Prefecture Inside the Matsushita Electric Works Co., Ltd. Terms (reference) 5G003 AA01 BA01 GB04 GB08 5H030 AS11 BB01 DD18 FF66

Claims (10)

[Claims] 1. A furniture provided with a power primary coil to which power is supplied, and an electric power placed in a magnetic flux by the power primary coil in a state of being arranged at a predetermined position with respect to the furniture. A non-contact power supply device comprising: a cordless device provided with a secondary coil; and a notifying unit for notifying a predetermined arrangement position of the cordless device with respect to furniture. 2. The non-contact power supply device according to claim 1, wherein a light emitting diode is provided as the notification means. 3. The non-contact power supply device according to claim 1, further comprising an illumination device as the notification means. 4. The non-contact power feeding device according to claim 1, further comprising a sound generating device as the notification means. 5. The non-contact power supply device according to claim 1, wherein the notification means is constituted by magnets respectively provided on the furniture and the cordless device. 6. The contactless power supply device according to claim 1, wherein a notifying unit is provided by providing a notifying member separate from the furniture at a predetermined position of the cordless device in the furniture. . 7. The contactless power supply device according to claim 6, wherein a power transmission unit having a power secondary coil is formed integrally with the notification member. 8. A notifying means for notifying a degree of a positional shift between an arrangement position of the cordless device arranged on the furniture and a predetermined arrangement position of the cordless device on the furniture. The contactless power supply device according to claim 1. 9. A furniture or a cordless device provided with a magnetic body disposed between a power primary coil and a power secondary coil in a state where the cordless device is arranged at a predetermined position with respect to the furniture. The contactless power supply device according to any one of claims 1 to 8, wherein 10. The contactless power supply device according to claim 1, wherein a rechargeable battery charged by the power supplied to the cordless device is provided in the cordless device.