JP2009159686A - Noncontact power feed adaptor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a noncontact power feed adaptor which is adaptable to a noncontact power feed system and can supply power to an electrical apparatus mounted to the adaptor. <P>SOLUTION: The noncontact power feed adaptor Ua is attached on the front surface Pa of a panel P oppositely to a noncontact power feed portion 10 disposed on a position standardized in the panel P configuring a wall, a ceiling or a floor of a building or on the rear surface of the panel P and for generating a standardized high-frequency magnetic field. The adaptor Ua is provided with magnets M2a, M2b as an attaching means detachably attached on the front surface Pa of the panel oppositely to the noncontact power feed portion 10; a noncontact power receiving portion 20, having a standardized relative position with the noncontact power feed portion 10 and receiving power ina noncontact manner from the noncontact power feed portion 10, by utilizing electromagnetic induction on a high-frequency magnetic field generated by the noncontact power feed portion 10; a recess 210 for attaching an electrical apparatus Q; and a power feed portion 21a for feed the received power to the electrical apparatus Q attached in the recess 210 via a power feed terminal 220. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a non-contact power supply adapter.

  2. Description of the Related Art Conventionally, power distribution systems disposed in buildings such as houses and offices include an AC power distribution system that supplies commercial power and a DC power distribution system that supplies DC power obtained by converting commercial power into DC voltage.

  The power distribution system installed in these buildings has openings in the building materials that make up the walls, ceiling, and floor of the building, and electrical equipment is attached to contact outlets such as outlets and hook ceilings installed in these openings. A power supply is supplied to each electric device by a direct contact between a contact (conductor) provided directly on the contact or a contact provided via a connection line (see, for example, Patent Documents 1 and 2).

And electric devices, such as a mobile phone, a shaver, an emergency light, etc. were charging via the adapter which plugged in the outlet (for example, refer patent document 3).
Japanese Patent Laid-Open No. 2-276212 Japanese Patent Laid-Open No. 7-15835 JP-A-6-54445

  In the above conventional technique, the user needs to connect the contact of the electric device to the contact outlet (particularly, the outlet), and further, there is a risk of electric shock because the conductor for power feeding is exposed. Therefore, instead of the outlet, a non-contact power supply unit that generates a high-frequency magnetic field is installed as a non-contact outlet, and the non-contact power supply unit uses a non-contact power supply unit for electromagnetic contact by the high-frequency magnetic field generated by the non-contact power supply unit. It is conceivable to use a non-contact power feeding system in which a non-contact power receiving unit that supplies the power received in step 1 to a load is disposed opposite to the non-contact power feeding unit.

  However, electrical devices that require charging, such as mobile phones, shavers, and emergency lights, require an adapter that supplies the power for charging to these electrical devices. There was no adapter.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide a non-contact power supply adapter that can supply power to an electric device attached to the adapter, adapted to the non-contact power supply system. There is to do.

  The invention of claim 1 is opposed to a non-contact power feeding section that generates a standardized high-frequency magnetic field by being arranged at a standardized position in a building material or on one surface of a building material that constitutes a wall, ceiling, or floor of a building. A non-contact power supply adapter that is attached to the other surface of the building material, and the relative position between the non-contact power supply portion and the attachment means that is detachably attached to the other surface of the building material facing the non-contact power supply portion is standardized. The non-contact power receiving unit that receives power from the non-contact power feeding unit in a non-contact manner using electromagnetic induction generated by the high-frequency magnetic field generated by the non-contact power feeding unit, the device mounting unit that mounts the electrical device, and the received power And a power supply unit that supplies power to the electrical device mounted on the mounting unit.

  According to the present invention, it is possible to supply power to an electrical device attached to an adapter in conformity with the non-contact power feeding system.

  According to a second aspect of the present invention, in the first aspect, the power supply unit controls the output voltage to a predetermined voltage.

  According to the present invention, it can be used for a load that requires constant voltage input.

  According to a third aspect of the present invention, in the second aspect of the present invention, the apparatus includes a voltage value selection unit that selects any one of a plurality of predetermined voltages, and the power supply unit controls the output voltage to the selected predetermined voltage. Features.

  According to the present invention, a single non-contact power supply adapter can be used to handle a plurality of loads having the same shape and different rated voltages, and the user does not need to prepare a plurality of non-contact power supply adapters. Improves.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the attachment means is constituted by a magnet that generates an attractive force with a magnet provided in the non-contact power receiving unit. To do.

  According to the present invention, it is not necessary to separately provide attachment means such as screws and locking means, and the configuration can be simplified and the attachment work can be simplified.

  As described above, according to the present invention, there is an effect that it is possible to supply power to an electrical device attached to an adapter in conformity with the non-contact power feeding system.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
In this embodiment, a contactless power supply system is provided in a building H such as a house, and contacts (conductors) or connecting wires provided directly on electrical equipment (loads) on contact outlets such as conventional outlets and hook ceilings. Instead of supplying electric power to the electric device performed by direct contact of the contact provided through the contact, electric power is supplied to the electric device in a non-contact manner.

  In the present embodiment, the power distribution system in the building H is constituted by a DC power distribution system. First, an outline of this power distribution system will be described with reference to FIG.

  The embodiments described below are described assuming a detached house as a building to which the present invention is applied, but this does not preclude the application of the technical idea of the present invention to an apartment house. As shown in FIG. 8, the building H is provided with a DC power supply unit 101 that outputs DC power and a DC device U ′ that is an electric device driven by the DC power. DC power is supplied to the DC device U ′ through the DC supply line Wdc connected to the end. A current flowing through the DC supply line Wdc is monitored between the DC power supply unit 101 and the DC device U ′, and when an abnormality is detected, the DC power supply unit 101 to the DC device U ′ is detected on the DC power supply line Wdc. A DC breaker 114 is provided to limit or cut off the power supply.

  The DC supply line Wdc is used as both a DC power supply path and a communication path, and is connected to the DC supply line Wdc by superimposing a communication signal for transmitting data on a DC voltage using a high-frequency carrier wave. Enables communication between devices. This technique is similar to a power line carrier technique in which a communication signal is superimposed on an AC voltage in a power line that supplies AC power.

  The DC supply line Wdc is connected to the home server 116 via the DC power supply unit 101. The home server 116 is a main device that constructs a home communication network (hereinafter referred to as “home network”), and communicates with a subsystem or the like constructed by the DC device U ′ in the home network.

  In the illustrated example, the subsystem includes an information equipment system K101 including an information system DC equipment U ′ such as a personal computer, a wireless access point, a router, and an IP telephone, and an illumination system DC equipment U ′ such as a lighting fixture. There are lighting systems K102 and K105, an intercom system K103 composed of a DC device U ′ for dealing with visitors and monitoring intruders, and a residential alarm system K104 composed of an alarm DC device U ′ such as a fire detector. Each subsystem constitutes a self-supporting distributed system, and can operate even with the subsystem alone.

  The above-described DC breaker 114 is provided in association with a subsystem. In the illustrated example, four DCs are associated with the information equipment system K101, the lighting system K102 and the intercom system K103, the house alarm system K104, and the lighting system K105. A breaker 114 is provided. When a plurality of subsystems are associated with one DC breaker 114, a connection box 121 for dividing the system of the DC supply line Wdc is provided for each subsystem. In the illustrated example, a connection box 121 is provided between the illumination system K102 and the intercom system K103.

  As the information equipment system K101, there is provided an information equipment system K101 comprising a direct current equipment U ′ connected to a direct current outlet 131 arranged in advance in the building H in the form of a wall outlet or a floor outlet (constructed during construction of the building H). .

  As the lighting systems K102 and K105, the lighting system K102 including a lighting fixture (DC device U ′) arranged in advance in the building H and the lighting fixture (DC device U ′) connected to the hook ceiling 132 arranged in advance on the ceiling. And an illumination system K105. At the time of interior construction of the building H, the contractor attaches the lighting fixture to the hook ceiling 132, or the resident himself attaches the lighting fixture.

  In addition to using an infrared remote control device, a control instruction for the lighting apparatus that is the DC device U ′ constituting the lighting system K102 can be given using a communication signal from the switch 141 connected to the DC supply line Wdc. That is, the switch 141 has a communication function together with the DC device U ′. In addition, a control instruction may be given by a communication signal from another DC device U 'in the home network or the home server 116 regardless of the operation of the switch 141. The instructions to the lighting fixture include lighting, extinguishing, dimming, and blinking lighting.

  Arbitrary DC equipment U ′ can be connected to the DC outlet 131 and the hooking ceiling 132 described above, and since DC power is output to the connected DC equipment U ′, the DC outlet 131 and the hooking ceiling 132 will be described below. When it is not necessary to distinguish, it is called a “DC outlet”.

  These DC outlets have a contact (such as a plug blade or conductor piece of a plug (not shown)) directly provided on the DC device U ′ or a plug-in connection port into which a contact provided via a connection line is inserted. The contact holder that directly contacts the contact inserted into the connection port is held by the container, and power is supplied in a contact manner. When the DC device U 'connected to the DC outlet has a communication function, a communication signal can be transmitted through the DC supply line Wdc. A communication function is provided not only in the DC device U 'but also in the DC outlet.

  The home server 116 not only is connected to the home network, but also has a connection port connected to the wide area network NT that constructs the Internet. When the in-home server 116 is connected to the wide area network NT, it is possible to receive services from the center server 200 that is a computer server connected to the wide area network NT.

  The service provided by the center server 200 is a service that enables monitoring and control of equipment (mainly DC equipment U ′ including other equipment having a communication function) connected to the home network through the wide area network NT. There is. This service makes it possible to monitor and control devices connected to the home network using a communication terminal (not shown) having a browser function such as a personal computer, Internet TV, or mobile phone.

  The in-home server 116 has both functions of communication with the center server 200 connected to the wide area network NT and communication with equipment connected to the home network, and identification information on equipment in the home network ( Here, it is assumed that an IP address is used).

  The home server 116 enables monitoring and control of home devices through the center server 200 from a communication terminal connected to the wide area network NT by using a communication function with the center server 200. The center server 200 mediates between home devices and communication terminals on the wide area network NT.

  When monitoring and controlling home devices from a communication terminal, monitoring and control requests are stored in the center server 200, and the home device periodically performs one-way polling communication to monitor from the communication terminal. And receive control requests. With this operation, it is possible to monitor and control devices in the house from the communication terminal.

  Further, when an event that should be notified to the communication terminal, such as a fire detection, occurs in the home device, the home device notifies the center server 200, and the center server 200 notifies the communication terminal by e-mail.

  An important function among the communication functions with the home network in the home server 116 is the detection and management of devices constituting the home network. The home server 116 automatically detects devices connected to the home network by applying UPnP (Universal Plug and Play). The home server 116 includes a display device 117 having a browser function, and displays a list of detected devices on the display device 117. The display device 117 has a configuration with a touch panel type or an operation unit, and can perform an operation of selecting desired contents from options displayed on the screen of the display device 117. Therefore, the user (contractor or householder) of the home server 116 can monitor or control the device on the screen of the display device 117. The display device 117 may be provided separately from the home server 116.

  The in-home server 116 manages information related to device connection, and grasps the type, function, and address of the device connected to the home network. Accordingly, the devices in the home network can be operated in conjunction with each other. Information on the connection of the device is automatically detected as described above. In order to operate the device in an interlocking manner, the device itself is automatically associated with the attribute held by the device itself, and the home server 116 is configured as a personal computer. It is also possible to connect various information terminals and use the browser function of the information terminals to associate devices.

  Each device holds the relationship of the interlocking operation of the devices. Therefore, the device can operate in an interlocked manner without passing through the home server 116. By associating the linked operations for each device, for example, by operating a switch that is a device, it is possible to turn on or off the lighting fixture that is the device. In many cases, the association of the interlocking operations is performed within the subsystem, but the association beyond the subsystem is also possible.

  By the way, the DC power supply unit 101 basically generates DC power by power conversion of an AC power supply AC supplied from outside the house like a commercial power supply. In the configuration shown in the figure, the AC power source AC is input to an AC / DC converter 112 including a switching power source through a main circuit breaker 111 attached to the distribution board 110 as an internal unit. The DC power output from the AC / DC converter 112 is connected to each DC breaker 114 through the cooperative control unit 113.

  The DC power supply unit 101 is provided with a secondary battery 162 in preparation for a period in which power is not supplied from the AC power supply AC (for example, a power failure period of the commercial power supply AC). It is also possible to use a solar cell 161 or a fuel cell 163 that generates DC power. The solar battery 161, the secondary battery 162, and the fuel battery 163 are distributed power supplies with respect to the main power supply including the AC / DC converter 112 that generates DC power from the AC power supply AC. In the illustrated example, the solar cell 161, the secondary battery 162, and the fuel cell 163 include a circuit unit that controls the output voltage, and the secondary battery 162 includes a circuit unit that controls charging as well as discharging.

  Of the distributed power sources, the solar cell 161 and the fuel cell 163 are not necessarily provided, but the secondary battery 162 is preferably provided. The secondary battery 162 is charged in a timely manner by a main power source or other distributed power source, and the secondary battery 162 is discharged not only in a period in which power is not supplied from the AC power source AC but also in a timely manner as necessary. The cooperation control unit 113 performs charge / discharge of the secondary battery 162 and cooperation between the main power source and the distributed power source. That is, the cooperative control unit 113 functions as a DC power control unit that controls the distribution of power from the main power supply and the distributed power supply configuring the DC power supply unit 101 to the DC equipment U ′. Note that a configuration may be adopted in which the outputs of the solar cell 161, the secondary battery 162, and the fuel cell 163 are converted into AC power and used as input power of the AC / DC converter 112.

  Since the driving voltage of the DC device U ′ is selected from a plurality of types of voltages depending on the device, a DC / DC converter is provided in the cooperative control unit 113 to convert the DC voltage obtained from the main power source and the distributed power source into the necessary voltage. It is desirable to do. Normally, one type of voltage is supplied to one subsystem (or DC equipment U ′ connected to one DC breaker 114), but three or more wires are supplied to one subsystem. A plurality of types of voltages may be used. Alternatively, it is possible to adopt a configuration in which the DC supply line Wdc is of a two-wire type and the voltage applied between the lines is changed with time. The DC / DC converter may be provided in a plurality of dispersed manners like the DC breaker.

  In the above configuration example, only one AC / DC converter 112 is illustrated, but a plurality of AC / DC converters 112 can be arranged in parallel, and when a plurality of AC / DC converters 112 are provided. It is desirable to increase or decrease the number of AC / DC converters 112 that are operated according to the magnitude of the load.

  The AC / DC converter 112, the cooperative control unit 113, the DC breaker 114, the solar cell 161, the secondary battery 162, and the fuel cell 163 described above are provided with a communication function, and the main power source, the distributed power source, and the DC device U ′ are connected. It is possible to perform a cooperative operation to deal with the load status including it. The communication signal used for this communication is transmitted in the form of being superimposed on the DC voltage in the same manner as the communication signal used for the DC device U '.

  In the above example, the AC / DC converter 112 is arranged in the distribution board 110 in order to convert the AC power output from the main breaker 111 into DC power by the AC / DC converter 112. On the output side, a branch breaker (not shown) provided in the distribution board 110 branches the AC supply line into a plurality of systems, and an AC / DC converter is provided on the AC supply line of each system to convert it into DC power for each system. You may employ | adopt the structure to do.

  In this case, since the AC / DC converter can be provided for each floor or room of the building H, the AC / DC converter can be managed for each system, and the DC device U ′ using DC power can be managed. Since the distance of the direct current supply line Wdc is reduced, the power loss due to the voltage drop in the direct current supply line Wdc can be reduced. Also, the main breaker 111 and the branch breaker are housed in the distribution board 110, and the AC / DC converter 112, the cooperative control unit 113, the DC breaker 114, and the home server 116 are housed in a separate board from the distribution board 110. Also good.

  In the present embodiment, a non-contact power supply system is applied to a DC distribution system that supplies DC power to DC devices in the above distribution system, and FIG. 3 shows a schematic diagram of a room R1 in the building H. The room R1 is surrounded by building materials such as a wall panel P1 provided on four sides (only three wall panels P1 are shown in FIG. 3), a ceiling panel P2 provided above, and a floor panel P3 provided below. .

  In the wall panel P1, ceiling panel P2, and floor panel P3 (collectively referred to as panel P), a plurality of non-contact power feeding units 10 used for the non-contact power feeding system are respectively incorporated. Instead of the DC outlet 131 and the hooking ceiling 132 that are outlets, a non-contact type DC outlet that supplies DC power is configured. As shown in FIG. 4, the non-contact power supply unit 10 includes a high frequency power generation circuit 11 that converts DC power supplied via the DC supply line Wdc into high frequency power, and high frequency power from the high frequency power generation circuit 11. It is comprised with the primary coil L1 which generate | occur | produces a high frequency magnetic field by being supplied. Moreover, if each side facing the room R1 of the wall panel P1, the ceiling panel P2, and the floor panel P3 is a surface P1a, P2a, P3a (collectively referred to as a panel surface Pa), the wall surface facing the non-contact power feeding unit 10 A mark indicating the feeding point X is provided on P1a, the ceiling surface P2a, and the floor surface P3a, and the user in the room R1 can visually recognize the feeding point X.

  The high frequency power generation circuit 11 converts a DC voltage into a high frequency voltage by switching an internal switching element (not shown) at a high frequency, and applies the high frequency voltage to both ends of the primary coil L1 to apply the high frequency voltage to the primary coil L1. A high frequency current is supplied to the primary coil L1, and the primary coil L1 generates a high frequency magnetic field by the high frequency current. Note that a circuit configuration for converting a DC voltage into a high-frequency voltage using a switching element is well known, and a description thereof will be omitted.

  Further, as shown in FIG. 3, a DC device U is installed on the wall surface P1a, the ceiling surface P2a, and the floor surface P3a. The wall surface P1a is provided with the non-contact power supply adapter Ua of the present invention, the LED light U1 for auxiliary lighting, and the ceiling surface P2a has a ceiling light U2 for main lighting, a spotlight U3 for auxiliary lighting, an air conditioner. Fan U4, human sensor U5 used in the security system, speaker U6 that provides wireless communication means and outputs sound, access point U7 used in the wireless LAN, etc. are installed on the floor surface P3a for auxiliary lighting. A standlight U8, a mat heater U9 for heating, and the like are installed.

  As shown in FIG. 4, each DC device U includes a non-contact power receiving unit 20 used in a non-contact power feeding system and a function unit 21 (for example, a charging function, an illumination function, an air conditioning function, a sensor function, and a communication function) of each DC device. Speaker function, LAN hub function, heating function, etc.). In addition, the non-contact power receiving unit 20 forms the single unit of the non-contact power receiving unit 20 in addition to the configuration (DC devices Ua, U1 to U8 in FIG. 3) integrated with the functional unit 21 in the DC device U, A configuration (DC device U9 in FIG. 3) may be employed in which operating power is supplied to the device body including the functional unit 21 via the power cord CD. When the non-contact power receiving unit 20 is formed as a single unit, the device main body can be arbitrarily arranged regardless of the position of the non-contact power feeding unit 10, and the non-contact power receiving unit 20 can be easily attached and detached.

  The non-contact power receiving unit 20 is disposed at each position (feed point X) of the wall surface P1a, the ceiling surface P2a, and the floor surface P3a facing the non-contact power feeding unit 10 in the wall panel P1, the ceiling panel P2, and the floor panel P3. Is done. The non-contact power receiving unit 20 is electromagnetically coupled to the primary coil L1 of the non-contact power feeding unit 10 and a secondary voltage is induced by electromagnetic induction when the high frequency magnetic field generated by the non-contact power feeding unit 10 is linked. A coil L2, a rectifier DB for full-wave rectification of the secondary voltage generated at both ends of the secondary coil L2, an inductor La connected in series to the rectified output on the positive side of the rectifier DB, and rectification via the inductor La A smoothing capacitor Ca that smoothes the voltage is supplied. The voltage across the smoothing capacitor Ca is supplied to the function unit 21 and serves as an operating power source for the function unit 21. Further, a constant voltage function may be added by providing a series regulator or chopper circuit at the output of the smoothing capacitor Ca. Further, as indicated by a broken line in FIG. 4, a resonance capacitor C2 may be connected in parallel to the secondary coil L2 to improve the power reception capability from the primary coil L1.

  There is a non-contact power supply adapter Ua as one form of the DC device U having the above configuration, and the functional unit 21 (hereinafter referred to as a power supply unit 21a) of the non-contact power supply adapter Ua is a rechargeable electric device such as a mobile phone or a shaver. Q has a charging function to Q, and is arranged on the panel surface P1a so as to face the non-contact power feeding portion 10 provided on the wall panel P1. In the present embodiment, the configuration in which the non-contact power supply adapter Ua is arranged on the wall panel P1 is illustrated for ease of use by the user. However, if the user can use the ceiling panel P2, the floor panel P3. It may be.

  1 and 2 (a) to 2 (c) show the configuration of the non-contact power supply adapter Ua, and the non-contact power supply adapter Ua is configured by a rectangular box-shaped housing 200 having a recess 210 whose front surface and upper surface are open. The non-contact power receiving unit 20 is stored in the rear wall 201 formed in a substantially flat shape of the housing 200, and the power supply unit 21 is stored in the bottom 204.

  The recess 210 constitutes a device mounting portion for mounting the electrical device Q, and holding surfaces 203, 203 extending from both side surfaces 202, 202 of the housing 200 are formed on the front surface of the recess 210, respectively. Together with both side surfaces 202, 202 of the housing 200, it functions as a sliding guide when the rechargeable electrical device Q is inserted into a cellular phone or a shaver from above or removed upward.

  Further, the bottom surface 211 of the recess 210 is provided with a power feeding terminal 220 that contacts a pair of power receiving terminals (not shown) provided on the lower surface of the electrical device Q. The power supply unit 21a is a non-contact power receiving unit. The DC voltage output from 20 is constantly controlled to a predetermined voltage, and this predetermined voltage is supplied from the power supply terminal 220 to the electric device Q. The electric device Q is a secondary battery (not shown) built in by the supplied DC power. ). The power supply unit 21a monitors the charging current, turns on the LED element 221 during charging, and turns off the LED element 221 when the completion of charging is detected.

  The non-contact power supply adapter Ua includes an attachment means in the housing 200 that is detachably attached to the front surface of the non-contact power supply unit 10.

  As shown in FIGS. 5A and 5B, the attachment means includes magnets M1a and M1b provided in the non-contact power supply unit 10 and magnets M2a provided in the non-contact power reception unit 20 of the non-contact power supply adapter Ua. M2b. The magnets M1a and M1b provided in the non-contact power feeding unit 10 are each formed in a substantially L shape, one side is magnetized to the S pole and the other side is magnetized to the N pole, and the end surfaces of the magnets M1a and M1b that are different from each other The non-contact power feeding unit 10 is attached to the inside of a rectangular frame formed so as to face each other. Further, the magnets M2a and M2b provided in the non-contact power receiving unit 20 are each formed in a substantially L shape, and one side is magnetized to an S pole and the other side is an N pole, and the magnets M2a and M2b are different from each other. The non-contact power receiving unit 20 is attached to the inside of a rectangular frame formed by facing the end faces.

  Therefore, when the non-contact power feeding unit 10 and the non-contact power receiving unit 20 face each other through the wall panel P1, the ceiling panel P2, and the floor panel P3, the magnets M1a and M1b and the magnets M2a and M2b have different polarities. Are opposed to each other, a magnetic attractive force is generated between the magnets M1a and M1b and the magnets M2a and M2b, and the non-contact power receiving unit 20 is correctly opposed to the non-contact power feeding unit 10 on the feeding point X. Installed in the mounting direction. For example, when the mounting direction is shifted by 90 degrees, the same polarity of the magnets M1a, M1b and the magnets M2a, M2b are opposed to each other, and a magnetic repulsive force is generated between the magnets M1a, M1b and the magnets M2a, M2b. Thus, the non-contact power receiving unit 20 cannot be installed on the power feeding point X so as to face the non-contact power feeding unit 10. This is because there is an attachment direction in which the mutual electromagnetic coupling is maximized due to the respective core shapes of the primary coil L1 and the secondary coil L2. The correct mounting direction described above is the direction in which the degree of electromagnetic coupling between the primary coil L1 and the secondary coil L2 is the highest. At this time, the magnetic attractive force generates a force capable of attaching the non-contact power supply adapter Ua to the wall surface P1a, the ceiling surface P2a, and the floor surface P3a.

  Therefore, when the user brings the non-contact power supply adapter Ua including the non-contact power reception unit 20 close to the power supply point X, the non-contact power reception unit 20 is correctly opposed to the non-contact power supply unit 10 by the magnetic attraction force. It is attached. The non-contact power receiving unit 20 receives power from the non-contact power feeding unit 10 in a non-contact manner by electromagnetic induction by a high-frequency magnetic field generated by the non-contact power feeding unit 10 and supplies power to the power supply unit 21 of the non-contact power feeding adapter Ua. .

  As described above, the non-contact power supply adapter Ua is adapted to the non-contact power supply system, and supplies the electric power supplied from the non-contact power supply unit 10 in a non-contact manner to the electric device Q attached to the non-contact power supply adapter Ua. And can be charged.

  Here, the relative position and installation environment of the primary coil L1 in the non-contact power feeding unit 10 and the secondary coil L2 of the non-contact power receiving unit 20, the frequency and size and range of the high-frequency magnetic field generated by the primary coil L1, The configuration of the attachment means composed of the magnets M1a and M1b and the magnets M2a and M2b is unified according to the standard. That is, the high-frequency magnetic field generated by the non-contact power supply unit 10 is a magnetic field having a predetermined frequency and a predetermined intensity based on a predetermined standard within a predetermined range, and the position where the non-contact power supply unit 10 is installed on the panel P. Also, when the non-contact power supply adapter Ua is installed on the panel surface Pa, the relative position (distance, direction, etc.) with the non-contact power supply unit 10 is also determined by the predetermined standard. Yes. Therefore, the power received by the non-contact power supply adapter Ua from the non-contact power supply unit 10 is within a specified range, and the configuration of the power supply unit 21a can be simplified (for example, the operable input range can be designed to be narrow, etc.) ).

  Moreover, the non-contact electric power feeding part 10 is each integrated in the several location in the wall panel P1, the ceiling panel P2, and the floor panel P3, and a user is attached to the non-contact electric power feeding adapter Ua to be used with the standardization of each said part. Accordingly, the non-contact power supply adapter Ua can be easily installed at an appropriate position, and excellent usability can be obtained.

  Further, the electric device Q that is charged with the secondary battery includes a mobile phone, a shaver, a dry battery, a music player, an electric toothbrush, an emergency lamp, and the like, and the shape of the housing 200 of the non-contact power supply adapter Ua (particularly The shape of the device mounting portion on which the electrical device Q is mounted differs depending on the electrical device Q to be mounted.

  Further, the charging form from the non-contact power supply adapter Ua to the electric device Q illustrates a contact-type charging method in which charging is performed via the power supply terminal 220 as described above, but the power supply unit 21a generates a high-frequency magnetic field. A method may be used in which electric power is generated from the non-contact power supply adapter Ua to the electric device Q in a non-contact manner by using electromagnetic induction caused by the high-frequency magnetic field.

  Other DC devices U also include magnets M <b> 2 a and M <b> 2 b provided in the non-contact power receiving unit 20 in the same manner as described above, and the non-contact power receiving unit 20 faces the non-contact power feeding unit 10 correctly by the magnetic attraction force. If the components are attached and the respective components are standardized in the same manner as described above, the configuration of the functional unit 21 can be simplified.

  The non-contact power supply unit 10 includes a form in which the surface of the non-contact power supply unit 10 is disposed flush with the panel surface Pa and a form in which the non-contact power supply unit 10 is incorporated in the panel P. However, since the power supply member does not protrude on the panel surface Pa, for example, the appearance of the side walls, the ceiling, and the floor in the room R1 does not harm the design and space of the room when a plurality of non-contact power supply units 10 are installed. It is possible to improve the performance, to make it possible to install furniture and the like in close contact with the wall, and to obtain an effect that does not get in the way.

  As described above, in the present embodiment, in the DC power distribution system (see FIG. 8), since the DC equipment U in the room R1 can be supplied in a non-contact manner, a contact type DC outlet such as the DC outlet 131 or the hooking ceiling 132 is used. Is not required in the building H, the construction can be simplified, and since the power feeding member does not protrude from the panel surface Pa, the appearance of the side wall, ceiling, and floor surface of the building H is improved, and further, it does not get in the way. In addition, since the user can operate the DC device U simply by attaching the DC device U to be used to the power supply point X, it is easy to use and there is no danger of electric shock because the conductor for power supply is not exposed. Absent. Thus, in this embodiment, it is possible to prevent deterioration of the design and space of the building H due to the power distribution system, and it is easy to supply power to the DC device U and to obtain high safety.

  Furthermore, so-called layout-free is realized in which the arrangement of the non-contact power feeding unit 10 constituting the non-contact power feeding outlet, the arrangement of the non-contact power receiving unit 20 on the load side, and the arrangement of furniture and the like in the building H can be freely performed. Yes.

  Further, the non-contact power receiving unit 20 of the DC device U is attached to the non-contact power feeding unit 10 in the wall panel P1, the ceiling panel P2, and the floor panel P3 by using magnetic attraction force. It is not necessary to separately provide a mounting means such as the above, and the structure can be simplified and the mounting work can be simplified.

  Further, the DC device U or the non-contact power receiving unit 20 alone may be attached to the wall surface P1a, the ceiling surface P2a, and the floor surface P3a by attaching means such as screws, hook-and-loop fasteners, suction cups, adhesive resin, and double-sided tape. These attachment means may be used in combination with the attachment means using the magnet.

  Furthermore, instead of incorporating a plurality of non-contact power feeding units 10 in the wall panel P1, ceiling panel P2, and floor panel P3, as shown in FIG. 6, the wall panel P1, ceiling panel P2, and floor panel P3 face the room R1. A configuration in which a sheet Y incorporating a plurality of non-contact power feeding units 10 is laid on each back surface P1b, P2b, P3b (collectively referred to as a panel back surface Pb). In this case, the addition and deletion of the feeding point X can be performed by adding and deleting the sheet S on the wall back surface P1b, the ceiling back surface P2b, and the floor back surface P3b. It can be carried out.

(Embodiment 2)
The non-contact power supply adapter Ua of the present embodiment is different from the first embodiment in that it has the following functions as the power supply unit 21a, and the same components are denoted by the same reference numerals and description thereof is omitted.

  The power supply unit 21a has a function of constantly controlling the DC voltage output from the non-contact power receiving unit 20 to a plurality of predetermined voltages (for example, 5V, 12V, 24V). A change-over switch 222 having an operation portion exposed from the front surface of the bottom portion 204 of the housing 200 is provided. The change-over switch 222 is controlled to a predetermined voltage selected by the change-over switch 222 so that the predetermined voltage is electrically supplied from the power supply terminal 220. The electric device Q charges the built-in secondary battery (not shown) with the supplied DC power. The power supply unit 21a monitors the charging current, turns on the LED element 221 during charging, and turns off the LED element 221 when the completion of charging is detected.

  Therefore, the single contactless power supply adapter Ua can be used for a plurality of electrical devices Q having the same shape and different rated voltages, and the user does not need to prepare a plurality of contactless power supply adapters. Will improve.

  The function of the power supply unit 21a of the non-contact power supply adapter Ua is not limited to the charging function, and is a function of performing various operations (lighting, music playback, etc.) by supplying DC power to the electrical device Q. Also good.

  In the first and second embodiments, the non-contact power feeding system is applied to the DC power distribution system in the power distribution system shown in FIG. 8, but the same non-contact power feeding system as that of each embodiment is applied to the AC power distribution system (not shown). May be. In this case, a rectifying means for rectifying the commercial power supply is provided at the input stage of the non-contact power supply unit 10, and a DC / AC conversion device such as an inverter device is provided at the output stage of the non-contact power reception unit 20.

1 is a perspective view illustrating a configuration of a non-contact power supply adapter according to Embodiment 1. FIG. (A)-(c) It is a top view which shows the structure same as the above. It is a figure which shows schematic structure of the room using a non-contact electric power feeding system. It is a figure which shows the circuit structure of a non-contact electric power feeding system. (A) is the figure which shows arrangement | positioning of the magnet which the non-contact electric power feeding part same as the above comprises, (b) is a figure which respectively shows arrangement | positioning of the magnet which the non-contact electric power receiving part comprises. It is a figure which shows another structure of arrangement | positioning of a non-contact electric power feeding part same as the above. It is a top view which shows the structure of the non-contact electric power feeding adapter of Embodiment 2. It is a figure which shows the whole structure of a power distribution system.

Explanation of symbols

Ua Non-contact power supply adapter 20 Non-contact power receiving unit 21a Power supply unit 200 Housing 210 Recessed portion 220 Power supply terminal M2a, M2b Magnet 10 Non-contact power supply unit Q Electrical equipment P Panel Pa Panel surface

Claims (4)

Attached to the other surface of the building material facing the non-contact power feeding part that generates a standardized high-frequency magnetic field by being placed at a standardized position in the building material constituting the wall or ceiling or floor of the building or on one surface of the building material A non-contact power supply adapter,
Mounting means for detachably attaching to the other surface of the building material facing the non-contact power feeding unit;
A non-contact power receiving unit that receives power from the non-contact power feeding unit in a non-contact manner using electromagnetic induction caused by a high-frequency magnetic field generated by the non-contact power feeding unit that is standardized relative to the non-contact power feeding unit;
A device mounting part for mounting electrical devices;
A non-contact power feeding adapter comprising: a power supply unit that supplies received power to an electrical device mounted on the device mounting unit.   The contactless power supply adapter according to claim 1, wherein the power supply unit controls an output voltage to a predetermined voltage.   3. The non-contact power feeding adapter according to claim 2, further comprising voltage value selection means for selecting any one of a plurality of predetermined voltages, wherein the power supply unit controls the output voltage to the selected predetermined voltage. .   The contactless power supply adapter according to any one of claims 1 to 3, wherein the attachment means is configured by a magnet that generates an attractive force with a magnet provided in the contactless power receiving unit.

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