JP2001275281A - Power supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply system in which connection of power supply cord can be eliminated at the time of moving a portable apparatus by supplying power to each portable apparatus without requiring any power supply cord. SOLUTION: Power supply coils 7a, 7b connected with a commercial power supply are disposed on the rear end side of a power supply unit 2 and portable apparatus, i.e., a video printer 3 and a VTR 4, provided with power receiving coils 12a, 12b, respectively, on the rear end thereof are mounted on the power supply unit 2. Electromotive force is induced in the power receiving coils 12a, 12b through electromagnetic induction by varying flux of the power supply coils 7a, 7b thus supplying power without providing any power supply cord on the portable apparatus side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a power supply system for wirelessly supplying power to portable equipment.

[0002]

2. Description of the Related Art For example, a movable cart for loading medical electrical equipment having a shelf for mounting a plurality of peripheral devices used for endoscopy is disclosed in, for example, JP-A-1-192357.
Issue.

[0003] Such a cart includes medical equipment such as a light source device for supplying illumination light to a subject used during an endoscopy, a video signal processing device for processing an image signal from the endoscope, and the like. V that is connected to the medical equipment and records an endoscope observation image
Peripheral devices such as TRs, video printers for recording still images of endoscope observation images, and still image recording devices are loaded. When performing endoscopy in other places, moving the cart requires Equipment can be moved at once.

[0004] The cart is also equipped with a table tap or an insulation transformer for supplying and distributing power to the medical equipment and peripheral devices, and supplies power to each device on the cart from the table tap or the insulation transformer. I can do it. For this reason, even when moving the cart, it is not necessary to connect the power cable of each device to the power outlet at the move destination, just connect the power cable of the table tap on the cart or the insulation transformer to the power outlet of the move destination. Power can be supplied to the above devices.

[0005]

The cart for loading medical electrical equipment described above is troublesome because the power cord must be unplugged from the power outlet each time the cart is moved. Also, if the power cord is forgotten to be removed when moving, the power cord may be pulled between the cart and the power outlet, causing the power cord to break.

[0006] In addition, the power cord must be connected to the power outlet every time when moving, which is troublesome. Further, there is a drawback that the power cord connected to the power outlet crawls around the cart during the inspection, and the appearance is poor, and the endoscope inspection must be performed while paying attention to the crawling of the power cord.

(Object of the Invention) The present invention has been made in view of the above points, and is intended to supply power to each portable device without requiring a power cord, thereby providing a power supply when the portable device moves. It is an object of the present invention to provide a wireless power supply system that can eliminate the work of connecting the cords and eliminate the crawling of the power cords.

[0008]

Means for Solving the Problems A first induction coil for generating a magnetic flux by an alternating current, a power supply main body having the first induction coil built in the vicinity of an outer surface, and electromagnetic induction from the first induction coil A second induction coil capable of supplying electric power, and a second induction coil built in a position where the second induction coil can face the first induction coil with a predetermined gap therebetween. By providing a portable device that can be installed, the magnetic flux is changed by the first induction coil,
The magnetic flux change is transmitted to a second induction coil, and the second induction coil converts the magnetic flux change into a current change, so that the power supplied to the first induction coil is transmitted to the second induction coil. It transmits wirelessly, eliminating the need to connect a power cord to portable equipment.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 3 relate to a first embodiment of the present invention, and FIG. 1 shows a schematic configuration of a power supply system according to the first embodiment of the present invention. 3 shows an external view of the power supply system in a state where portable equipment is installed in the power supply unit, and FIG. 3 shows an operation explanatory diagram in the state of FIG. The purpose of this embodiment is to supply electric power wirelessly to portable equipment (mobile equipment).

As shown in FIG. 1, a wireless power supply system 1 according to the present embodiment includes a power supply unit (power supply main body) 2 for supplying power wirelessly and a VTR 3 as a portable device (mobile device). And a video printer 4.

The power supply unit 2 is supplied with commercial power from a power plug 5 connected to a commercial power supply, and supplies the power to a portable device by wireless power supply 6.
Is provided.

The power supply unit 6 comprises two induction coils for supplying power wirelessly by, for example, electromagnetic induction, and constitutes power supply coils 7a and 7b. The two power supply coils 7a and 7b are connected in parallel and connected to a power supply line connected to the power supply plug 5, and a power supply switch 8 for turning ON / OFF commercial power supply provided at one half of the power supply line is provided. AC power is supplied from a commercial power supply via the power supply.

The power supply coils 7a and 7b are located inside the power supply unit 2, for example, near the exterior ceiling 9,
And it is fixed and arranged at a predetermined position such as a position near the rear end of the exterior. Also, the power supply coils 7a, 7
The exterior ceiling 9 near b is made of, for example, a resin-based material through which magnetic flux generated when an alternating current flows through the power supply coils 7a and 7b.

On the other hand, the VTR 3 and the video printer 4 each have a power supply
a and 11b are provided. Power receiving section 11a of VTR3
The power receiving coil 12a is formed by an induction coil that receives power wirelessly by electromagnetic induction. The power receiving coil 12a is located at a predetermined position in the vicinity of the exterior bottom portion 13 inside the VTR 3, for example, near the rear end of the exterior, and when the VTR 3 is placed at a predetermined position on the power supply unit 2, as shown in FIG. As described above, it is disposed and fixed at a position facing the power supply coil 7a with a predetermined gap, such as a gap close to the power supply coil 7a with the exterior ceiling section 9 and the exterior bottom section 13 interposed therebetween.

That is, an alternating current is supplied to the power supply coil 7a, and the power receiving coil 12a is arranged at a position where the magnetic flux generated at that time passes (preferably) with a small amount of leakage. An induced electromotive force can be generated in the power receiving coil 12a well.

The exterior bottom 13 near the power receiving coil 12a is made of, for example, a resin material through which magnetic flux by electromagnetic induction can pass. The power receiving coil 12a turns on / off the power supply of the VTR 3.
VTR of the VTR 3 via the power switch 14
It is connected to a VTR internal unit 15 composed of a not-shown component such as a magnetic head that achieves a function.

The wireless power receiver 11b of the video printer 4 has an induction coil 12b formed of an induction coil that receives power wirelessly by electromagnetic induction, just like the power receiver 11a of the VTR 3. The power receiving coil 12b is also located near the exterior bottom 16 inside the video printer 4, and when the video printer 4 is mounted at a predetermined position on the power supply unit 2, as shown in FIG. The power supply coil 7b is disposed and fixed at a position facing the power supply coil 7b with a predetermined gap, such as a gap close to the power supply coil 7b.

The exterior bottom 16 near the power receiving coil 12b is made of, for example, a resin material through which magnetic flux of electromagnetic induction can pass. The power receiving coil 12b turns on / off the power of the video printer 4.
The video printer 4 is connected via a power switch 17 which is turned off to a video printer internal unit 18 comprising components (not shown) for achieving the video printer function of the video printer 4.

Next, the operation of the present embodiment will be described. FIG.
The VTR 3 and the video printer 4 are placed at predetermined positions on the power supply unit 2 as shown in FIG. And
In this state, the power plug 5 is connected to a commercial power outlet (not shown), and the power switch 8 of the power supply unit 2 is turned on.

At this time, the power plug 5
AC power is supplied to the power supply coils 7a and 7b through the AC power supply. As shown in FIG. 3, the power supply coils 7a and 7b supply magnetic fluxes 19a and 19b to the respective power supply coils 7a and 7b in accordance with the supplied AC current.
Occurs.

The magnetic flux 19a penetrates the exterior ceiling 9 of the power supply unit 2 and the exterior bottom 13 of the VTR 3 and reaches the power receiving coil 12a of the VTR 3.
Similarly, the magnetic flux 19b reaches the power receiving coil 12b of the video printer 4. As a result, an alternating current caused by electromagnetic induction flows through the power receiving coils 12a and 12b in accordance with the magnetic fluxes 19a and 19b, and AC power is generated in the power receiving coils 12a and 12b.

In the above state, the power switch 14 is turned on.
Then, the power receiving coil 12a and the circuit of the VTR internal unit 15 are electrically connected, the AC power generated in the power receiving coil 12a is supplied to the VTR internal unit 15, and the VTR 3 can operate. .

Similarly, when the power switch 17 is turned on, the video printer 4 is supplied with AC power from the power receiving coil 12b to the video printer internal unit 18, and the video printer 4 becomes operable.

In the above configuration, in order to reduce the size of the power supply coils 7a and 7b and the power receiving coils 12a and 12b or improve the power transmission efficiency, the frequency of the commercial power supplied to the power supply coils 7a and 7b is increased. (Usually 5
0 Hz or 60 Hz) may be converted from a commercial frequency to a high frequency (for example, about several tens of kHz to several hundreds of kHz) by a frequency converter (not shown) and supplied. In this way, a small and efficient wireless power supply becomes possible.

This embodiment has the following effects. The power supplied to the power supply coils 7a and 7b of the power supply unit 2 is supplied to the VTR 3 or the power receiving coils 12a and 12b of the video printer 4 by spatial transmission via magnetic flux. There is no need to connect a power cable to supply power.
When the R3 or the video printer 4 is installed, the installation work can be easily completed simply by placing it on the power supply unit 2.

Further, the power supply cable does not crawl around the VTR 3 and the video printer 4, and the appearance is also refreshed. Also, if the power supply unit 2 is installed in advance at a destination where the VTR 3 or the video printer 4 may be moved, the VTR 3 and the video printer 4 can be easily moved without connecting the power cord. It can be used at the destination.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. This embodiment has the same purpose as the first embodiment. FIG. 4 shows a power supply system 1 'of the present embodiment. This power supply system 1 'includes a power supply unit 2' in which one power supply coil 7b (see FIG. 6) in the power supply unit 2 of FIG. 1), a VTR 3 of FIG. 1, and a video printer 3 of FIG.
In addition, as shown in FIG.
2b and a video printer 4 'in which a power supply coil 21 is connected in parallel.

In the present embodiment, since the power supply unit 2 'is a single power supply coil 7a, it can supply power to only one portable device, but the power supply unit 2'
The first portable device receiving power from the first portable device further includes a power supply unit, and the second portable device is further disposed on the first portable device. Power can be supplied to portable equipment.

As shown in FIG. 5, the power supply means is provided in parallel with the power receiving coil 12b (described in the first embodiment).
Are connected. The power receiving coil 12b and the power supply coil 21 are connected to the power switch 17.

When the VTR 3 is placed at a predetermined position on the video printer 4 'near the exterior ceiling 22 of the video printer 4' as shown in FIG. As shown, the video printer 4 'and V
It is arranged and fixed at a position facing the power receiving coil 12a of the VTR 3 with a predetermined gap therebetween with both exteriors of the TR 3 interposed therebetween.

The exterior ceiling 22 near the power supply coil 21 is made of, for example, a resin-based material through which magnetic flux can penetrate. Other configurations are the same as those of the first embodiment.

Next, the operation of the present embodiment will be described. FIG.
And a video printer 4 'on the power supply unit 2'.
And the VTR 3 is placed on the video printer 4 '.

At this time, as in the first embodiment, when an alternating current is supplied from the outlet of the commercial power supply to the power supply coil 7b through the power plug 5 through the power plug 5, the power is transmitted via the magnetic flux to the power receiving coil of the video printer 4 '. 12b.

With the power supplied to the power receiving coil 12b, an alternating current corresponding to the power supplied to the power receiving coil 12b flows through the power supply coil 21 connected to the power receiving coil 12b. A magnetic flux 23 is generated in the supply coil 21. The magnetic flux 23 is applied to the exterior top 22 of the video printer 4 ′ and the exterior bottom 1 of the VTR 3.
3 and reaches the power receiving coil 12a of the VTR 3.

As a result, a current corresponding to the magnetic flux 23 flows through the power receiving coil 12a, and the power receiving coil 12a
Power is generated at a.

When the power switch 17 of the video printer 4 'is turned on in the above state, the power receiving coil 12
Power is supplied to the video printer internal unit 18 from b, and the video printer 4 'is in an operable state. Also, V
Similarly, for the TR3, the power switch 14 is turned on.
Thus, power is supplied to the VTR internal unit 15 from the power receiving coil 12a, and the VTR internal unit 15 becomes operable.

Since the power supply coil 21 of the video printer 4 'is connected to the power receiving coil 12b without passing through the power switch 17 of the video printer 4', the power switch 17 of the video printer 4 'is turned off. Even if power is supplied, power is supplied from the power receiving coil 12b,
It is possible to supply power to the power receiving coil 12a of TR3.

In the above embodiment, if a power supply coil is connected to the VTR 3 in the same manner as the video printer 4 ', it goes without saying that the same operation is performed even when the stacking order is lower than the VTR 3. .

This embodiment has the following effects. First
In addition to the effects of the embodiment, even when the VTR 3 and the video printer 4 'are stacked vertically, power can be similarly supplied to each device, and the VTR 3 and the video printer 4 can be supplied even in a small space where they cannot be arranged side by side. 'Can be installed to supply power.

(Third Embodiment) Next, FIGS.
A third embodiment of the present invention will be described with reference to FIG. This embodiment has the same purpose as the first embodiment. Third
In the second embodiment, the first embodiment is applied to an endoscopic examination room. The power supply coil is embedded under the floor where a portable device such as a VTR or a video printer is used, and the power receiving coil is used. It is built into the bottom of a system cart that carries portable equipment.

As shown in FIG. 7, an endoscope inspection system 31 in an endoscope inspection room 30 includes, for example, two endoscopes 32a and 32b necessary for performing an endoscope inspection, and an endoscope peripheral device. 3
3a, 33b and examination bed 34 on which the patient lies during examination
a, 34b so that a plurality of patients can be examined at the same time.

The endoscope peripheral device 33a includes an endoscope 32
a light source device for supplying illumination light to the inside of a patient through a, a video processor for controlling the endoscope 32a and processing image signals, an observation monitor for displaying an output image from the video processor, and a liquid in the body of the subject. A cauterizing device for cauterizing a test site and performing a medical treatment, an electric scalpel for removing the test site, and the like. The endoscope peripheral device 33b has the same configuration.

Further, as externally connected devices to the endoscope peripheral devices 33a and 33b, there are a VTR 35 for recording an endoscope observation image obtained through the endoscopes 32a and 32b, a video printer 36, and the like. This external connection device is separate from the endoscope peripheral devices 33a and 33b, and is a movable system cart 3 having a caster 37 as shown in an enlarged view in FIG.
8 and is freely movable in the endoscopic examination room 30.

When it is necessary to record an endoscope observation image, the system cart 38 is moved to the vicinity of the endoscope peripheral device 33a or 33b, and the image is transmitted to the endoscope peripheral device 33a or 33b. By connecting a cable, an image under inspection can be recorded on the VTR 35 or the video printer 36.

Under the floor of the above-mentioned endoscopic examination room 30, the same place as in the first embodiment is placed at each place where the system cart 38 may be moved and used, that is, near the floor surface at a predetermined position. The power supply coils 39a and 39b are embedded and connected to the AC power supply 40 in parallel.

The power supply coils 39a, 39b
Are connected in series to magnetic relays 41a and 41b that are magnetically turned on and off, respectively, and are arranged at predetermined positions near the floor surface under the floor and near the power supply coils 39a and 39b. The magnetic relays 41a and 41b are turned on when a magnetic force of a predetermined value or more is applied, and electrically close a connected circuit. When the applied magnetic force becomes a predetermined value or less, the magnetic relays 41a and 41b are turned off to electrically close the circuit. It is a relay to disconnect.

Further, at the bottom of the system cart 38,
As shown in FIG. 8, a power transmission unit 42 is attached. This power transmission unit 42 has the same configuration as the power supply unit of the video printer 4 'of the second embodiment.
The power receiving coil 43 and the power supply coil 44 as shown in FIG.
It is composed of

When the system cart 38 is moved to a predetermined position in the endoscope room 30 near the bottom of the exterior inside the power transmission unit 42 and the power receiving coil 43, as shown in FIG. 39a or 39
b and the floor surface and the exterior 45 of the power transmission unit 42 are disposed and fixed at a position facing each other with a predetermined gap therebetween.

The power supply coil 44 mounts the video printer 36 having the same configuration as that of the second embodiment at a predetermined position on the power transmission unit 42 near the exterior ceiling of the power transmission unit 42. In this case, as shown in FIG. 10, the power transmission unit 42 and the video printer 36 are fixedly disposed at a position facing the power receiving coil 46 of the video printer 36 with a predetermined gap between both exteriors of the video printer 36. The power transmission unit 42
The outer casing in the vicinity of the power receiving coil 43 and the power supply coil 44 is made of a resin material through which magnetic flux can penetrate.

The system cart 3 is located at a predetermined position in the endoscope room 30 at the bottom of the power transmission unit 42.
8, the permanent magnet 47 is arranged and fixed at a position facing the magnetic relay 41a or 41b across the floor surface as shown in FIG.

The video printer 36, the VT
R35 is a power receiving coil 46, 48, a power supply coil 4
9, the video printer 4 'of the second embodiment,
It has exactly the same configuration as R3.

Next, the operation of the present embodiment will be described. When an externally connected device is connected to the endoscope peripheral device 33a for use before or during the endoscopic inspection, the system cart 38 is moved to a predetermined position near the endoscope peripheral device 33a.

Thus, the permanent magnet 47 and the magnetic relay 41a face each other as shown in FIG. 10, and the lines of magnetic force of the permanent magnet 47 reach the magnetic relay 41a. At this time, since the magnetic force from the permanent magnet 47 is larger than a predetermined value, the magnetic relay 41a is turned ON, the circuit of the power supply coil 39a and the AC power supply 40 is closed, and AC power is supplied to the power supply coil 39a from the AC power supply 40. Supplied.

Thus, the power transmission unit 42, the video printer 36, and the power receiving coils 43, 4 of the VTR 35 are operated in exactly the same manner as in the first and second embodiments.
Electric power is supplied to the power supply 6 and 48 via the magnetic flux. For this reason,
When the power switch of the video printer 36 or VTR 35 is turned on, the video printer 36 or VTR 35 is turned on.
Becomes operable.

At this time, by connecting the endoscope peripheral device 33a to the video printer 36 or VTR 35 with an image transmission cable, the endoscopic observation image under examination can be transmitted through the image transmission cable to the video printer 36 or VT.
It is supplied to R35, and the endoscope observation image can be recorded.

Even when the system cart 38 is moved to a predetermined position near the endoscope peripheral device 33b, the video printer 3 is operated by the same operation as described above.
6. The endoscope inspection image from the endoscope peripheral device 33b can be recorded on the VTR 35.

This embodiment has the following effects. In addition to the effects of the first and second embodiments, since it is not necessary to turn the power cord on the floor, it is not necessary to pay attention to the power cord. Also, the magnetic relay 41a or 41
b underfloor power supply coil 39a or 3
Since power is supplied from the AC power supply 40 only to the power supply 9b, wasteful power is not consumed, and supply of power to the unintended power receiving coil can be prevented.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIGS. The present embodiment has a spatial transmission transmitting unit and a spatial transmission receiving unit for spatially transmitting a signal, and the spatial transmission transmitting unit and the spatial transmission receiving unit are arranged at predetermined positions of each device.

This embodiment is different from the third embodiment in that the VTR 35 and the video printer 3 as shown in FIG.
6 is provided with infrared transmission / reception units 51 and 52 capable of transmitting and receiving signals by infrared. That is, as shown in an enlarged manner in FIG. 12, infrared transmission / reception units 51 and 52 (transmission and reception units thereof) are provided at positions facing the VTR 35 and the video printer 36, respectively.

By connecting only one of the two, for example, a video printer 36 image transmission cable to the endoscope peripheral device 33a or 33b, the endoscope observation image is transmitted from the infrared transmission transmission / reception section 52 of the video printer 36. The VTR 35 is capable of recording an endoscope observation image without connecting an image transmission cable. Others are the same as the third embodiment. According to the present embodiment, the number of connected image transmission cables can be reduced. The other effects are the same as those of the third embodiment.

Note that an infrared transmission / reception unit (not shown) is also provided on the upper surface side of the VTR 35 in FIG. 11 so that when another device is mounted thereon, signals can be transmitted / received to / from that device by infrared. Is also good.

[0062] In this case, the transmission / reception units face each other and infrared communication becomes possible simply by stacking the devices in order. In the endoscope peripheral device 33a or 33b, the number of connection cables may be reduced by providing the infrared transmission / reception unit described above.

In this way, when a plurality of devices are stacked on a cart or a shelf when the devices are installed, each device is provided with a transmission / reception unit for infrared transmission at a predetermined position. However, the transmission / reception unit for spatial transmission has a positional relationship in which transmission / reception can be performed between the devices simply by stacking the devices in order.

During the operation of each device, signal transmission between the devices is performed by infrared communication through the infrared transmission / reception unit. When the devices are installed, there is no need to perform the work of laying out communication cables for performing communication between the devices, and since the cables do not crawl between the devices, the appearance is neat and the space for arranging the cables is not required. Further, since no electric wire is used, communication troubles due to disconnection can be solved.

When an endoscopic examination is performed, the treatment tool being used is determined from the image on the monitor, and only one ON / OFF SW is assigned to the treatment tool to reduce the number of SWs. The number of cables in the operating room may be reduced.

For this reason, a treatment tool discriminating marker provided at the distal end of the treatment tool, a treatment tool discriminating device for discriminating the treatment tool according to the image signal of the marker when the marker is picked up by a TV camera, The endoscope system may be provided with a SW switching device that connects the SW for the treatment tool to the controller of the treatment tool that has been determined according to the signal from the treatment tool determination device.

Also, icons for operation of each device are set on the TV monitor, and the operation of each device can be performed by operating the icons with a treatment tool or the like on the screen. The number of cables running between them may be reduced, and the length of the power supply cable for the light guide and the treatment tool may be minimized.

That is, in an endoscope system in which a TV camera device, a light source device, a treatment device, and the like are stored under an operating table, an endoscope displayed on a TV monitor on which an image captured by the TV camera device is displayed. A plurality of operation icons for each device of the surgical system, and an icon operation for recognizing that the icon has been selected when a marker provided at the tip of a treatment tool or the like is projected on one of the plurality of icons. An input recognition device, and a controller that issues an instruction to the corresponding device to operate the function of the device corresponding to the recognized icon from among the devices stored under the operating table according to the selected icon. May be provided.

For example, when the icon displayed on the TV monitor is pointed at the colored portion at the distal end of the treatment tool, the device and operation specified by the image processing device are confirmed, and an operation command is issued from the image processing device to each of the other devices. . The monitor and the image processing device may be connected by a cable in the operating room wall or may be wirelessly transmitted.

In order to reduce the number of icons on the monitor, the color of the tip may be changed for each treatment tool, and the icon to be displayed may be determined for each color.

In the case of the icons, only each operation can be selected, and the foot SW is depressed (or O by voice recognition).
N / OFF) may be executed. There are no cables that go under the floor, and power source cables for treatment tools and the like can be made as short as possible.

In this way, only necessary icons are displayed on the monitor, so that the monitor observation is not hindered. Further, the output is instructed by the foot SW (or voice recognition), so that there is no malfunction.

[Supplementary Notes] A first induction coil for generating a magnetic flux by an alternating current, a power supply main body including the first induction coil near the outer surface thereof, and a second power supply unit capable of supplying power from the first induction coil by electromagnetic induction And a portable device that can be installed close to the power supply device main body and has a built-in second induction coil at a position facing the first induction coil with a predetermined gap therebetween. A power supply system comprising:

2. A first induction coil that is supplied with power from an external electromagnetic induction source via a predetermined gap, and an external electromagnetic induction receiver that receives at least a part of the power obtained by the first induction coil through a predetermined gap. And a second induction coil that can be supplied to the body by electromagnetic induction. 3. At least one induction coil capable of generating a magnetic flux by an alternating current and generating an electromotive force in an external induction coil through a predetermined gap by the magnetic flux is installed in the vicinity of the floor or wall surface of the building. Power supply system characterized by the following.

4. One or more first coils for converting a supplied power supply current into a change in magnetic flux, facing at least one of the first coils with a predetermined gap, and the first coil is provided. A wireless power transmission device comprising: a second coil that is installed inside a mobile device different from the one and converts a change in magnetic flux of the first coil into a change in current.

(Function of Supplementary Note 4) In the above configuration, the electric power supplied to the first coil is converted into a change in magnetic flux by the first coil and transmitted to the facing second coil, and the power is supplied to the second coil. The coil converts the change in magnetic flux into a change in current, so that the power supplied to the first coil is wirelessly transmitted to the second coil with constant efficiency.

5. 4. The wireless power transmission device according to claim 4, further comprising a third coil installed inside the mobile device and connected to the second coil. (Operation of Supplementary Note 5) In the above configuration, the electric power supplied to the second coil is converted into a magnetic flux change by the third coil, and the magnetic flux change by the third coil is supplied to the outside of the mobile device. .

6. 4. The wireless power transmission device according to any one of supplementary notes 4 and 5, further comprising a switch connected in series to each of the first plurality of coils and individually turning on / off power supply to each of the first plurality of coils. (Operation of Supplementary Note 6) The above configuration has an operation of stopping supply of power to an unused first coil of the first coil that does not face the second coil.

7. The wireless power transmission device according to claim 6, further comprising a switch control means for controlling ON / OFF of the switch means in the mobile device. (Operation of Supplementary Note 7) The configuration described above has an operation of controlling the supply of power to the unused first coil of the first coil not facing the second coil from the mobile device side.

8. In Supplementary Notes 4, 5, 6, and 7, from the first plurality of coils installed under the floor and the second coil installed in a system cart that stores a plurality of peripheral devices used for endoscopy Wireless power transmission device.

[0081]

As described above, according to the present invention, a first induction coil for generating a magnetic flux by an alternating current, a power supply main body including the first induction coil near an outer surface thereof, A second induction coil capable of supplying electric power from one induction coil by electromagnetic induction, and a second induction coil built in a position where the second induction coil can face the first induction coil with a predetermined gap. And a portable device that can be installed in proximity to the power supply main body, the magnetic flux is changed by the first induction coil, and the magnetic flux change is transmitted to the second induction coil. By converting the magnetic flux change into a current change, the power supplied to the first induction coil can be wirelessly transmitted to the second induction coil, and the connection of the power cord to the portable device can be eliminated. For this reason,
Equipment installation work can be reduced when installing or moving the equipment. In addition, the power cord does not crawl around the device, making it look cleaner. Further, disconnection of the power cord can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a power supply system according to a first embodiment of the present invention.

FIG. 2 is an external view of a power supply system in a state where portable equipment is installed in a wireless power supply unit.

FIG. 3 is an operation explanatory view in the state of FIG. 2;

FIG. 4 is an external view of a power supply system according to a second embodiment of the present invention.

FIG. 5 is a configuration diagram of a main part of the video printer.

FIG. 6 is an operation explanatory view of the second embodiment.

FIG. 7 is a perspective view of an endoscopic examination room provided with a third embodiment of the present invention.

FIG. 8 is a perspective view showing devices and the like mounted on the cart.

FIG. 9 is a configuration diagram of a main part of a power supply unit.

FIG. 10 is an operation explanatory view of the third embodiment.

FIG. 11 is a perspective view showing devices and the like mounted on a cart according to a fourth embodiment of the present invention.

FIG. 12 is an enlarged view of a part of FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Power supply system 2 ... Power supply unit 3 ... VTR 4 ... Video printer 5 ... Power supply plug 6 ... Power supply part 7a, 7b ... Power supply coil 8 ... Power supply switch 9 ... Exterior ceiling part 11a, 11b ... Power receiving part 12a, 12b Power receiving coil 13, 16 Exterior bottom 14, 17 Power switch 15 VTR internal unit 18 Video printer internal unit 19a, 19b Magnetic flux 21 Power supply coil

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[Procedure amendment]

[Submission date] July 27, 2000 (2007.2
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. This embodiment has the same purpose as the first embodiment. FIG. 4 shows a power supply system 1 'of the present embodiment. This power supply system 1 'further includes a power supply unit 2' which is one power supply coil 7b (see FIG. 6 ) in the power supply unit 2 of FIG. 1, a VTR 3 of FIG. 1, and a video printer 4 of FIG. 5) power receiving coil 12
and a video printer 4 'in which a power supply coil 21 is connected in parallel with the printer b.

Continued on the front page (72) Katsumi Sasaki, Inventor Olympus Optical Co., Ltd. 2-43-2 Hatagaya, Shibuya-ku, Tokyo (72) Inventor Keisuke Miura 2-43-2, Hatagaya, Shibuya-ku, Tokyo Olympus Optics (72) Inventor Taro Miyazawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Koji Yamauchi 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optics Within Kogyo Co., Ltd. (72) Kazuhiro Gono 2-43-2 Hatagaya, Shibuya-ku, Tokyo ORINPASS Optical Kogyo Co., Ltd. (72) Hiroyuki Ushibo 2-43-2 Hatagaya, Shibuya-ku, Tokyo Ori (72) Inventor Tomoyasu Kawai 2-43-2 Hatagaya, Shibuya-ku, Tokyo Orinpass Optical Industries Co., Ltd. (72) Takeaki Nakamura 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. F Over-time (reference) 4C341 LL07 5G003 AA01 BA01 GB08

Claims (3)

[Claims] A first induction coil for generating a magnetic flux by an alternating current; a power supply main body including the first induction coil near an outer surface thereof; and a power supply from the first induction coil by electromagnetic induction. A second induction coil that is capable of being installed, and the second induction coil is built in a position where it can face the first induction coil with a predetermined gap, and can be installed close to the power supply main body. A power supply system comprising: a portable device; 2. A first induction coil, which is supplied with power from an external electromagnetic induction source via a predetermined gap, and at least a part of the power obtained by the first induction coil via a predetermined gap. And a second induction coil that can be supplied to an external electromagnetic induction receiver by electromagnetic induction. 3. An at least one induction coil capable of generating a magnetic flux by an alternating current and generating an electromotive force in an external induction coil through a predetermined gap by the magnetic flux is provided on a surface of a floor or wall of a building. A power supply system that is installed in the vicinity.