JP2018057140A - Power receiving machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a power supply method.SOLUTION: A power receiving machine includes a power generating section for generating power by external electromagnetic waves, a positive electrode terminal, and a negative electrode terminal. The positive electrode terminal functions as a positive electrode when outputting power generated by the power generating section to an external electronic apparatus. The negative electrode terminal functions as a negative electrode when outputting power generated by the power generating section to an external electronic apparatus. The positive electrode terminal has a first contact part to be connected electrically with the external electronic apparatus, and the negative electrode terminal has a second contact part to be connected electrically with the external electronic apparatus. The distance between the first and second contact parts corresponds to the height determined by IEC 60086 or JISC 8500.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a power receiver.

  2. Description of the Related Art Conventionally, a power supply method for supplying power to an electronic device by using electromagnetic waves is known. For example, Patent Document 1 discloses a power transmitter that supplies power to a device that requires power using microwaves.

Japanese Patent Application Laid-Open No. 2014-2223018

  However, in the conventional power supply method, it is necessary to design the electronic device exclusively so that the power supply by the electromagnetic waves can be received. Therefore, in the conventional power supply method, usable electronic devices are limited. Therefore, there is room for improvement in the conventional power supply method.

  An object of the present invention made in view of such a point is to provide a power receiving machine capable of improving a power supply method.

  A power receiving device according to an embodiment of the present invention includes a power generation unit that generates electric power from an external electromagnetic wave, a positive electrode terminal, and a negative electrode terminal. The positive electrode terminal functions as a positive electrode when the electric power generated by the power generation unit is output to an external electronic device. The negative electrode terminal functions as a negative electrode when the electric power generated by the power generation unit is output to an external electronic device. The positive terminal has a first contact portion that is electrically connected to an external electronic device. The negative terminal has a second contact portion that is electrically connected to an external electronic device. The distance between the first contact portion and the second contact portion corresponds to a height defined in IEC 60086 or JISC 8500.

  According to the power receiving apparatus according to the embodiment of the present invention, the power supply method can be improved.

It is a figure which shows schematic structure of the electric power supply system which concerns on the 1st Embodiment of this invention. It is a figure which shows a mode when the electric receiving apparatus which concerns on the 1st Embodiment of this invention is accommodated in the battery holder of a remote control. 1 is an external perspective view of a power receiving device according to a first embodiment of the present invention. It is a functional block diagram of the power receiving apparatus according to the first embodiment of the present invention. It is a flowchart explaining operation | movement when the power receiving apparatus which concerns on the 1st Embodiment of this invention generates electric power. It is a flowchart explaining operation | movement when the power receiving apparatus which concerns on the 1st Embodiment of this invention communicates with a power transmitter. It is an external appearance perspective view of the electrical receiver which concerns on the modification of the 1st Embodiment of this invention. It is a functional block diagram of the electrical receiver according to the second embodiment of the present invention. It is a flowchart explaining operation | movement when the power receiving apparatus which concerns on the 2nd Embodiment of this invention generates electric power. It is a functional block diagram of the electrical receiver according to the third embodiment of the present invention. It is a flowchart explaining operation | movement of the receiving device based on the 3rd Embodiment of this invention.

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

(First embodiment)
FIG. 1 shows a schematic configuration of a power supply system 1 according to the first embodiment of the present invention. The power supply system 1 includes a remote controller 2, a timepiece 3, and a power transmitter 200. Each of the remote controller 2 and the timepiece 3 accommodates a dry battery type power receiving apparatus 100 as shown in FIG.

  For example, the remote controller 2 and the timepiece 3 house the power receiving device 100 in the battery holder of its own device. Here, a part for storing a dry battery in an electronic device is called by various names such as a battery holder, a battery box, a battery case, and the like. In the present specification, these parts are collectively referred to as a “battery holder”. Shall.

  FIG. 2 shows a state in which the electric receiver 100 is housed in the battery holder 2 </ b> A of the remote controller 2. The battery holder 2A is provided on the back surface of the remote controller 2, and includes a housing portion 2B, a terminal 2C that is a positive terminal on the positive electrode side, and a terminal 2D that is a movable terminal on the negative electrode side. When the receiving device 100 is fitted into the housing 2B, the positive terminal 10 and the positive terminal 2C of the receiving device 100 are electrically connected, and the negative terminal 11 and the negative terminal 2D of the receiving device 100 are electrically connected. Connected to.

  Hereinafter, a state in which the receiving device 100 is accommodated in the battery holder of the electronic device as illustrated in FIG. 2 is referred to as an “accommodated state”.

  The remote controller 2 and the timepiece 3 are driven by electric power supplied from the power receiving device 100. FIG. 1 shows the remote controller 2 and the watch 3 as examples of electronic devices that can be driven by the power supplied from the power receiver 100, but the electronic devices that can be driven by the power supplied from the power receiver 100 are shown here. It is not limited. The electronic device that can be driven by the power supplied from the power receiving device 100 may be any electronic device that can be driven by the power supplied from the dry battery, the button-type battery, or the like, and may be a mouse, an electronic dictionary, or the like.

  The power receiver 100 receives an electromagnetic wave for power supply from the power transmitter 200. The electric receiver 100 converts the received electromagnetic wave into DC power. The power receiving device 100 supplies the converted direct-current power to the electronic device that houses the device. As shown in FIG. 2, the power receiving machine 100 is connected to an electronic device via a positive electrode terminal 10 connected to a terminal 2C on the positive electrode side of the electronic device and a negative electrode terminal 11 connected to a terminal 2D on the negative electrode side of the electronic device. Supply DC power to the equipment.

  The power transmitter 200 is, for example, a home gateway, a wireless power transmission system, or the like, and is installed in a home, for example. The power transmitter 200 generates an electromagnetic wave for supplying power. The power transmitter 200 transmits the generated electromagnetic wave to a receiver in an electronic device installed in the same house, for example. In the example of FIG. 1, the power transmitter 200 transmits an electromagnetic wave to the receiver 100 in the remote controller 2 and the receiver 100 in the timepiece 3.

  The power transmission device 200 may perform authentication with the power receiving device 100 and transmit an electromagnetic wave for power supply only to the power receiving device 100 that has been successfully authenticated. Thereby, it can prevent supplying electric power to the electronic device (for example, electronic device of a neighboring house) which the power transmission device 200 does not intend. The authentication process at this time will be briefly described. First, the power transmitter 200 receives a pilot signal requesting authentication from the power receiver 100. Then, the power transmitter 200 transmits a signal requesting identification information to the power receiving device 100. Thereafter, when the receiving device 100 receives a signal requesting identification information from the power transmitter 200, the receiving device 100 transmits a signal including the identification information of the receiving device 100 to the power transmitter 200. When the power transmitter 200 obtains a signal including the identification information of the power receiver 100 from the power receiver 100, the power transmitter 200 determines whether or not the identification information of the power receiver 100 is authenticated. When it is determined that the identification information of the receiving device 100 is authenticated, the power transmitting device 200 transmits a signal notifying that the authentication is successful to the receiving device 100, and for supplying power to the receiving device 100. Transmit electromagnetic waves.

  Further, the power transmitter 200 may transmit an electromagnetic wave for power supply to the power receiver 100 without performing authentication with the power receiver 100. As a result, the power transmitter 200 can be installed in a public place, and power can be supplied to any electronic device by the power transmitter 200.

  Next, the external configuration of the electric receiver 100 will be described with reference to FIG. The power receiving machine 100 includes a positive electrode terminal 10, a negative electrode terminal 11, an upper surface 12, a bottom surface 13, and a main body 14.

  The positive electrode terminal 10 has, for example, a convex shape and is provided at the center of the upper surface 12. The positive electrode terminal 10 functions as a positive electrode when the electric power generated by the power generation unit 20 (see FIG. 4) in the power receiving device 100 is output to an external electronic device. The positive terminal 10 has a first contact portion 10A. 10 A of 1st contact parts are electrically connected with the terminal (terminal 2C in FIG. 2) by the side of the positive electrode of an electronic device in the accommodation state.

  The negative electrode terminal 11 has, for example, a substantially planar shape and is provided at the center of the bottom surface 13. The negative electrode terminal 11 functions as a negative electrode when outputting the electric power generated by the power generation unit 20 (see FIG. 4) in the power receiving apparatus 100 to an external electronic device. The negative electrode terminal 11 has a second contact portion 11A. 11A of 2nd contact parts are electrically connected with the terminal (terminal 2D in FIG. 2) of the negative electrode side of an electronic device in the accommodation state.

  The distance L1 between the first contact portion 10A and the second contact portion 11A corresponds to the height defined by a predetermined standard for the primary battery. The predetermined standard is, for example, IEC 60086, which is a standard related to a primary battery defined by the International Electrotechnical Commission (IEC), and JISC 8500, which is a Japanese standard corresponding to IEC 60086. Thus, in the housed state, the first contact portion 10A and the terminal on the positive electrode side (terminal 2C in FIG. 2) are electrically connected, and the second contact portion 11A and the terminal on the negative electrode side of the electronic device ( In FIG. 2, the terminal 2D) can be electrically connected.

  For example, when the distance L1 is fixed to 59.5 mm to 61.5 mm, which is the height of a single dry battery, the power receiver 100 is accommodated in a battery holder for a single dry battery of the electronic device. Can be driven. Further, for example, when the distance L1 is fixed to 48.6 mm to 50.0 mm which is the height of the AA dry battery, the receiver 100 is accommodated in the battery holder for the AAA battery of the electronic device, and the receiver Electronic devices can be driven. Further, for example, when the distance L1 is fixed to 49.2 mm to 50.5 mm which is the height of the AA dry battery, the receiver 100 is accommodated in the battery holder for the AA dry battery of the electronic device. Electronic devices can be driven. Further, for example, when the distance L1 is fixed to 43.3 mm to 44.5 mm which is the height of the AAA battery, the receiver 100 is accommodated in the battery holder for AAA batteries of the electronic device, and Electronic devices can be driven. Further, for example, when the distance L1 is fixed to 29.1 mm to 30.2 mm, which is the height of the single 5 dry cell, the receiving device 100 is accommodated in the electronic holder for the single 5 dry cell of the electronic device. It is possible to drive electronic equipment. Further, for example, when the distance L1 is fixed to about 3.2 mm which is the height of the button type battery, the receiving device 100 can be accommodated in the battery holder for the button type battery of the electronic device and the electronic device can be driven. It becomes possible.

  When the receiving device 100 is housed in various electronic devices, that is, when the receiving device 100 is housed in various battery holders, the exterior of the receiving device 100 is adjusted so that the distance L1 can be adjusted according to various battery holders. May be configured. For example, you may comprise the exterior of the receiving device 100 so that the receiving device 100 can accommodate from the battery holder for single dry batteries to the battery holder for single 5 dry batteries. This configuration example will be described in a modification (FIG. 7).

  The upper surface 12 is disposed so as to cover the upper side of the main body 14. Further, the positive electrode terminal 10 is disposed in the central portion of the upper surface 12. The shape of the upper surface 12 may be any shape according to the shape of the main body 14. For example, the shape of the upper surface 12 may be a circular shape, a triangular shape, a hexagonal shape, or the like depending on the shape of the main body 14.

  The bottom surface 13 is disposed so as to cover the bottom side of the main body 14. In addition, the negative electrode terminal 11 is disposed in the central portion of the bottom surface 13. The shape of the bottom surface 13 may be any shape according to the shape of the main body 14. For example, the shape of the bottom surface 13 may be circular, triangular, hexagonal, or the like depending on the shape of the main body 14.

  The main body 14 has a columnar shape, and an upper surface 12 is disposed on the upper side, and a bottom surface 13 is disposed on the bottom side. The shape of the main body 14 may be any shape. For example, the shape of the main body 14 may be a cylindrical shape, a triangular prism shape, a hexagonal prism shape, or the like.

  The main body 14 accommodates at least a part of the power generation unit 20 (see FIG. 4) in the power receiving device 100. For example, the main body 14 may accommodate all of the power generation unit 20 in the power receiver 100. For example, the main body 14 may accommodate the rectifier circuit 20 </ b> B (see FIG. 4) as a part of the power generation unit 20. In this case, the antenna 20A (see FIG. 4) may be disposed on the main body 14.

  Further, on the main body 14, the light emitting unit 22 (see FIG. 4) in the power receiving machine 100 is arranged. The light emitting unit 22 emits light when the power receiving device 100 is generating power.

  The diameter d of the main body 14 may correspond to a diameter defined by a predetermined standard related to the primary battery based on the electronic device in which the power receiving device 100 is housed. The predetermined standard is, for example, IEC 60086 and JISC 8500. If it carries out like this, it will become possible to insert the receiving device 100 in a battery holder without gap.

  For example, when the diameter d is fixed to 32.2 mm to 34.2 mm, which is the diameter of a single dry battery, it is possible to fit the power receiver 100 into the battery holder for the single dry battery without any gap. Further, for example, when the diameter d is fixed to 24.7 mm to 26.2 mm, which is the diameter of the AA dry battery, it is possible to fit the power receiver 100 into the battery holder for the AA dry battery without any gap. Further, for example, when the diameter d is fixed to 13.5 mm to 14.5 mm which is the diameter of the AA dry battery, the power receiving device 100 can be fitted into the battery holder for the AA dry battery without any gap. Further, for example, when the diameter d is fixed to 9.5 mm to 10.5 mm which is the diameter of the AAA dry battery, the power receiving device 100 can be fitted into the battery holder of the AAA dry battery without any gap. Further, for example, when the diameter d is fixed to 7.7 mm to 8.3 mm, which is the diameter of the single 5 dry battery, the power receiving device 100 can be fitted into the battery holder for the single 5 dry battery without any gap. Further, for example, when the diameter d is fixed to about 20 mm, which is the diameter of the button type battery, it is possible to fit the receiving device 100 into the battery holder for the button type battery without any gap.

  With such a configuration, the power receiving device 100 can be accommodated in a battery holder of an electronic device driven by a dry battery or the like. Therefore, in an electronic device designed to be driven by a dry battery or the like, the electronic device can be driven by housing the power receiving device 100 in the battery holder instead of the dry battery. In other words, according to the present embodiment, an electronic device designed to be driven by a dry battery or the like can also receive power supply by electromagnetic waves. Thereby, in this embodiment, the power supply method can be improved.

  Next, the function of the electric receiver 100 will be described with reference to FIG. The power receiving device 100 includes a power generation unit 20, a communication unit 21, a light emitting unit 22, a notification unit 23, a storage unit 30, and a control unit 31.

  Based on the control of the control unit 31, the power generation unit 20 generates power using electromagnetic waves from the outside. In the present embodiment, the power generation unit 20 generates power using electromagnetic waves from the power transmitter 200 shown in FIG. The power generation unit 20 supplies the generated power to an external electronic device via the positive terminal 10 and the negative terminal 11. At this time, when the power receiving device 100 is housed in an electronic device driven by a dry battery, the power generation unit 20 sets the potential difference between the positive electrode terminal 10 and the negative electrode terminal 11 to 0.8V to 1.7V. This is based on the fact that the nominal voltage of the dry battery is 1.5V and the discharge end voltage of the dry battery is about 0.8V to 1.0V. Alternatively, when the power receiving device 100 is housed in an electronic device that is driven by a button-type battery, the power generation unit 20 sets the potential difference between the positive electrode terminal 10 and the negative electrode terminal 11 to 2.0 V to 3.0 V. This is based on the fact that the button-type battery has a nominal voltage of 3.0V and the button-type battery has a discharge end voltage of about 2.0V.

  The power generation unit 20 includes an antenna 20A and a rectifier circuit 20B. The antenna 20A receives electromagnetic waves from the power transmitter 200 shown in FIG. The rectifier circuit 20B converts the electromagnetic wave received by the antenna 20A into DC power. The rectifier circuit 20 </ b> B supplies the converted DC power to an external electronic device via the positive terminal 10 and the negative terminal 11.

  The communication unit 21 communicates with an external device. In the present embodiment, the communication unit 21 communicates with the power transmitter 200 shown in FIG. Instead of the communication unit 21, the antenna 20A may communicate with the power transmitter 200.

  The light emitting unit 22 emits light when the power generation unit 20 is generating power based on the control of the control unit 31. The light emitting unit 22 may change any one of the light emission intensity, the light emission mode, and the light emission color according to the generated power of the power generation unit 20 based on the control of the control unit 31. For example, the light emitting unit 22 can emit light with a light emission intensity equal to or greater than the first value when the generated power of the power generation unit 20 is equal to or greater than the first predetermined value. Further, for example, the light emitting unit 22 can blink when the generated power of the power generation unit 20 falls below the second predetermined value. In addition, for example, the light emitting unit 22 changes the emission color to green when the generated power of the power generation unit 20 is greater than or equal to the first predetermined value, and the emission color when the generated power of the power generation unit 20 falls below the second predetermined value. Can be changed to red.

  The notification unit 23 is, for example, a speaker or a vibrator. The notification unit 23 notifies that the generated power of the power generation unit 20 is decreasing based on the control of the control unit 31. For example, when the notification unit 23 is a speaker, the speaker outputs a voice saying “the generated power is decreasing” as the generated power of the power generation unit 20 is decreasing. For example, when the notification unit 23 is a vibrator, the vibrator vibrates as the generated power of the power generation unit 20 is reduced.

  The storage unit 30 stores a program in which information necessary for processing of the receiving device 100 and processing contents for realizing each function of the receiving device 100 are described. The storage unit 30 stores, for example, a first threshold described later, identification information of the receiving device 100, and the like.

  The control unit 31 controls and manages the entire receiving device 100. The control unit 31 is configured by any suitable processor such as a general-purpose CPU (central processing unit) that reads software for executing processing of each function, or a dedicated processor specialized for processing of each function.

  In the present embodiment, the control unit 31 causes the power generation unit 20 to generate power when the power receiving device 100 is in the housed state. The process of the control part 31 regarding this is demonstrated in the following <power generation process>.

<Power generation processing>
The control unit 31 causes the power generation unit 20 to generate power when the power receiving device 100 is in the housed state. The control unit 31 determines whether or not the receiving device 100 is in the housed state, and when it is determined that the receiving device 100 is in the housed state, causes the power generation unit 20 to start power generation. Hereinafter, an example of processing for determining whether or not the receiving device 100 is in the housed state will be described.

  When the power receiving apparatus 100 is in the accommodated state as shown in FIG. 2, the positive terminal 10 is connected to the positive terminal 2C of the electronic device. The negative electrode terminal 11 is connected to a terminal 2D on the negative electrode side of the electronic device. Therefore, when the receiving device 100 is in the housed state, even if the electronic device is not driven, power corresponding to standby power of the electronic device is transmitted from the receiving device 100 to the electronic device via the positive terminal 10 and the negative terminal 11. Is output. Therefore, when it is determined that the power corresponding to the standby power of the electronic device is output from the positive terminal 10 and the negative terminal 11, the control unit 31 determines that the receiving device 100 is in the housed state.

  Moreover, the control part 31 makes the light emission part 22 light-emit, when the electric power generation part 20 is generating electric power. In this case, the control unit 31 may change any one of the light emission intensity, the light emission mode, and the light emission color of the light emitting unit 22 according to the generated power of the power generation unit 20. For example, the control unit 31 may set the light emission intensity of the light emitting unit 22 to be equal to or higher than the first value when the generated power of the power generation unit 20 is equal to or higher than the first predetermined value. Further, for example, when the generated power of the power generation unit 20 is lower than the second predetermined value, the light emitting unit 22 may blink. Further, for example, when the generated power of the power generation unit 20 is greater than or equal to the first predetermined value, the control unit 31 changes the emission color of the light emitting unit 22 to green, and when the generated power of the power generation unit 20 falls below the second predetermined value, The emission color of the light emitting unit 22 may be red.

  Moreover, the control part 31 makes the alerting | reporting part 23 alert | report that the generated electric power is falling, when it determines with the generated electric power of the electric power generation part 20 being below a 1st threshold value. If the notification unit 23 is a speaker, the control unit 31 causes the speaker to output a voice saying “the generated power is decreasing”, for example, indicating that the generated power is decreasing. Moreover, if the alerting | reporting part 23 is a vibrator, the control part 31 will vibrate a vibrator as the generated electric power has fallen.

  Here, as described above, the power transmitter 200 may perform authentication with the power receiving device 100 and transmit an electromagnetic wave for power supply only to the power receiving device 100 that has been successfully authenticated. When the power transmission device 200 has such a specification, the control unit 31 performs communication processing for receiving authentication on the power transmission device 200. The process of the control part 31 regarding this is demonstrated in the following <authentication process>.

<Authentication process>
The control unit 31 transmits a pilot signal requesting authentication to the power transmitter 200 via the communication unit 21. For example, the control unit 31 transmits a pilot signal requesting authentication, triggered by the fact that the power receiving apparatus 100 is in the housed state. When the power transmitter 200 acquires this pilot signal from the power receiver 100, a signal requesting identification information of the power receiver 100 is transmitted from the power transmitter 200 to the power receiver 100.

  The control unit 31 determines whether or not the signal requesting the identification information of the power receiving device 100 is acquired from the power transmitter 200 via the communication unit 21. When determining that the signal requesting the identification information of the receiving device 100 has been acquired, the control unit 31 transmits a signal including the identification information of the receiving device 100 to the power transmitter 200 via the communication unit 21. When the power transmission device 200 acquires a signal including the identification information of the power receiving device 100 from the power receiving device 100, it is determined whether or not the power transmission device 200 has authenticated the identification information of the power receiving device 100. When it is determined by the power transmitter 200 that the identification information of the power receiving device 100 is authenticated, a signal notifying the success of authentication is transmitted from the power transmitter 200 to the power receiving device 100, and further, power is supplied to the power receiving device 100. The electromagnetic wave for is transmitted.

  The control unit 31 determines whether or not a signal notifying successful authentication is acquired from the power transmission device 200 via the communication unit 21. The control unit 31 causes the power generation unit 20 to start power generation when it is determined from the power transmission device 200 via the communication unit 21 that a signal for notification of successful authentication has been acquired.

[System operation]
<Power generation operation>
Hereinafter, the operation of the power receiving apparatus 100 according to the present embodiment will be described. First, the operation when the power receiving device 100 generates power will be described with reference to FIG.

  First, the control unit 31 determines whether or not the receiving device 100 is in the housed state (step S101). When it is determined that the power receiving apparatus 100 is in the housed state (step S101: Yes), the control unit 31 proceeds to the process of step S102. On the other hand, when the control unit 31 determines that the power receiving apparatus 100 is not in the housed state (step S101: No), the process ends.

  In the process of step S102, the control unit 31 causes the power generation unit 20 to start power generation. Thereby, the electric power generation part 20 starts the electric power generation by the electromagnetic waves from the power transmission device 200 shown in FIG. In the process of step S103, the control unit 31 causes the light emitting unit 22 to emit light.

  The light emitting unit 22 emits light when the power generation unit 20 is generating electric power through the processes in steps S102 and S103. Thereby, the user can confirm whether or not the power receiving device 100 is generating power by visually recognizing the light emitting unit 22.

  In the process of step S104, the control unit 31 determines whether or not the generated power of the power generation unit 20 is less than or equal to the first threshold value. When the control unit 31 determines that the generated power of the power generation unit 20 is equal to or less than the first threshold (step S104: Yes), the control unit 31 proceeds to the process of step S105. On the other hand, the control part 31 complete | finishes a process, when it determines with the electric power generation of the electric power generation part 20 exceeding a 1st threshold value (step S104: No).

  In the process of step S105, the control unit 31 causes the notification unit 23 to notify that the generated power is decreasing. If the notification unit 23 is a speaker, the control unit 31 causes the speaker to output a voice saying “the generated power is decreasing”, for example, indicating that the generated power is decreasing. Moreover, if the alerting | reporting part 23 is a vibrator, the control part 31 will vibrate a vibrator as the generated electric power has fallen.

  When the generated power of the receiver 100 becomes equal to or less than the first threshold value by the processes in steps S104 and S105, the user is notified that the generated power is decreasing. Thereby, the user can recognize that the receiving device 100 cannot sufficiently receive the electromagnetic waves from the power transmitter 200 shown in FIG. 1 under the current environment. Thereafter, the user moves the electronic device (receiving device 100) or removes an obstacle between the electronic device and the transmitting device 200 so that the receiving device 100 can sufficiently receive electromagnetic waves from the power transmitting device 200. It can be moved.

  The power transmission device 200 may perform processing corresponding to the processing in step S101. That is, when the power transmitter 200 determines whether or not the receiving device 100 is in the housed state and determines that the receiving device 100 is in the housed state, transmission of electromagnetic waves for supplying power to the receiving device 100 is started. It is good also as a trigger. In this case, instead of the process of step S <b> 101, the control unit 31 transmits information on the power value output from the receiving device 100 to the outside via the positive terminal 10 or the like to the power transmitter 200 via the communication unit 21. . When the power transmitter 200 acquires the information on the power value from the power receiver 100, the power value is a value corresponding to the natural discharge of the power receiver 100 or the standby power of the electronic device in which the power receiver 100 is mounted. It is determined whether the value is equivalent. When the power transmitter 200 determines that the power value is a value corresponding to the standby power of the electronic device in which the power receiver 100 is mounted, the power transmitter 200 starts transmission of electromagnetic waves to the power receiver 100. Thereafter, the control unit 31 performs the processing after step S102.

  Further, in the process of step S <b> 103, the control unit 31 may change the light emission intensity of the light emitting unit 22 according to the generated power of the power generation unit 20. For example, the control unit 31 may cause the light emission intensity of the light emitting unit 22 to be equal to or higher than the first value when the generated power of the power generation unit 20 is equal to or higher than the first predetermined value. As a result, the user can grasp the amount of power generated by the power generation unit 20 based on the change in the light emission intensity of the light emission unit 22.

  Moreover, in the process of step S <b> 103, the control unit 31 may change the light emission mode of the light emitting unit 22 according to the generated power of the power generation unit 20. For example, the control unit 31 may cause the light emitting unit 22 to blink when the generated power of the power generation unit 20 falls below the second predetermined value. Thereby, the user can grasp | ascertain the electric power generation amount of the electric power generation part 20 by the change of the light emission mode of the light emission part 22. FIG.

  Moreover, in the process of step S103, the control part 31 may change the light emission color of a light emission part according to the electric power generated by a power generation part. For example, when the generated power of the power generation unit 20 is greater than or equal to a first predetermined value, the control unit 31 sets the light emission color of the light emitting unit 22 to green, and when the generated power of the power generation unit 20 falls below the first predetermined value, The emission color 22 may be red. Thereby, the user can grasp | ascertain the electric power generation amount of the electric power generation part 20 by the change of the luminescent color of the light emission part 22. FIG.

<Authentication operation>
Next, an authentication operation when the power receiving device 100 communicates with the power transmitter 200 will be described with reference to FIG.

  First, the control part 31 transmits the pilot signal which requests | requires authentication with respect to the power transmission apparatus 200 via the communication part 21 (step S201). For example, the control unit 31 transmits a pilot signal requesting authentication, triggered by the fact that the power receiving apparatus 100 is in the housed state. When the power transmitter 200 acquires a pilot signal requesting authentication from the power receiver 100, a signal requesting identification information of the power receiver 100 is transmitted from the power transmitter 200 to the power receiver 100.

  Next, the control part 31 determines whether the signal which requests | requires the identification information of the receiving device 100 was acquired from the power transmission device 200 via the communication part 21 (step S202). When it determines with the control part 31 having acquired the signal which requests | requires the identification information of the receiving device 100 (step S202: Yes), it progresses to the process of step S203. On the other hand, when it determines with the control part 31 not acquiring the signal which requests | requires the identification information of the receiving machine 100 (step S202: No), a process is complete | finished.

  In the process of step S <b> 203, the control unit 31 transmits a signal including the identification information of the power receiving machine 100 to the power transmitter 200 via the communication unit 21. When the power transmission device 200 acquires a signal including the identification information of the power receiving device 100 from the power receiving device 100, it is determined whether or not the power transmission device 200 has authenticated the identification information of the power receiving device 100. When it is determined by the power transmitter 200 that the identification information of the power receiving device 100 is authenticated, a signal notifying the success of authentication is transmitted from the power transmitter 200 to the power receiving device 100, and further, power is supplied to the power receiving device 100. The electromagnetic wave for is transmitted.

  In the process of step S <b> 204, the control unit 31 determines whether or not a signal notifying successful authentication is acquired from the power transmitter 200 via the communication unit 21. When it determines with the control part 31 having acquired the signal which notifies authentication success from the power transmission apparatus 200 via the communication part 21 (step S204: Yes), it progresses to the process of step S205. On the other hand, when it determines with the control part 31 not acquiring the signal which notifies authentication success from the power transmission device 200 via the communication part 21 (step S204: No), a process is complete | finished.

  In the process of step S205, the control unit 31 causes the power generation unit 20 to start power generation in the same manner as the process of step S201.

  As described above, the power receiving apparatus 100 according to the first embodiment can be accommodated in the battery holder of an electronic device driven by a dry battery or the like. Therefore, in an electronic device designed to be driven by a dry battery or the like, the electronic device can be driven by housing the power receiving device 100 in the battery holder instead of the dry battery. In other words, according to the present embodiment, an electronic device designed to be driven by a dry battery or the like can also receive power supply by electromagnetic waves. Thereby, in this embodiment, the power supply method can be improved.

  Furthermore, in the present embodiment, the electronic device can be driven by the power receiver 100 without using a dry battery or the like. Therefore, when the power receiving apparatus 100 according to the present embodiment is used instead of a dry battery in an electronic device, it is possible to prevent a situation in which the dry battery leaks in the electronic device and the electronic device breaks down.

  In addition, primary batteries such as dry batteries cannot be used when all the dischargeable power is discharged. That is, the primary battery is discarded when all the dischargeable power is discharged.

  On the other hand, the power receiving apparatus 100 according to the present embodiment generates electric power using electromagnetic waves from the power transmitter 200. Therefore, in the receiver 100, a situation in which all the electric power that can be discharged like the primary battery is discharged cannot occur. Accordingly, the power receiving device 100 can be used repeatedly, and is therefore environmentally friendly.

  In addition, primary batteries such as dry batteries may discharge all dischargeable power by natural discharge. Therefore, in the case of the primary battery, when the user wants to use the electronic device, the dry battery in the electronic device is already empty, and thus the user may not be able to use the electronic device.

  On the other hand, the power receiving apparatus 100 according to the present embodiment generates electric power using electromagnetic waves from the power transmitter 200. Therefore, when the user wants to use the electronic device, the power receiving machine 100 can generate electric power using the electromagnetic waves from the power transmitter 200. Therefore, in the power receiving apparatus 100 according to the present embodiment, when the user wants to use the electronic device, such as the above-described primary battery, a situation in which the user cannot use the electronic device cannot occur. Thereby, the receiving device 100 according to the present embodiment is excellent in user convenience.

(Modification of the first embodiment)
An external configuration of the power receiving apparatus 100a according to the modified example of the first embodiment will be described with reference to FIG. 7 that are the same as those shown in FIG. 3 are given the same reference numerals, and descriptions thereof are omitted. In FIG. 7, the light emitting unit 22 is not shown.

  The power receiving machine 100a includes a positive electrode terminal 10, a negative electrode terminal 11, an upper surface 12, a bottom surface 13, and a main body 14A.

  The main body 14A has an upper part 14a and a lower part 14b, and has a feeding mechanism by the upper part 14a and the lower part 14b. When the lower portion 14b is rotated in the direction indicated by the arrow A, the upper portion 14a extends in the vertical direction indicated by the arrow B. On the other hand, when the lower portion 14b is rotated in the direction opposite to the direction indicated by the arrow A, the upper portion 14a contracts in the direction opposite to the vertical direction indicated by the arrow B.

  With such a configuration, the distance L1 can be adjusted according to various battery holders. In other words, the power receiving device 100 can be accommodated from a battery holder for a single battery to a battery holder for a single battery.

  In the receiving device 100a according to the modified example of the first embodiment, other effects and functions are the same as those of the receiving device 100 according to the first embodiment.

(Second Embodiment)
Next, the receiving device 100b according to the second embodiment will be described. In the following, differences from the power receiving apparatus 100 according to the first embodiment will be mainly described.

  FIG. 8 shows a functional block diagram of a power receiving machine 100b according to the second embodiment of the present invention. 8 that are the same as those shown in FIG. 4 are given the same reference numerals, and descriptions thereof are omitted.

  The power receiving device 100b includes a power generation unit 20, a communication unit 21, a light emitting unit 22, a notification unit 23, a sensor unit 24, a storage unit 30, and a control unit 31.

  The sensor unit 24 detects that the electrical receiver 100 is in the housed state (see FIG. 2). The sensor unit 24 includes, for example, a pressure sensor and a continuity sensor.

  For example, when the sensor unit 24 includes a pressure sensor, the sensor unit 24 detects pressure applied to both ends of the first contact unit 10A and the second contact unit 11A illustrated in FIG. When the pressure applied to both ends of the first contact unit 10A and the second contact unit 11A exceeds the second threshold, the sensor unit 24 notifies the control unit 31 that the pressure has been detected.

  For example, when the sensor unit 24 includes a continuity sensor, the sensor unit 24 detects continuity between the first contact unit 10A and the second contact unit 11A illustrated in FIG. When detecting the continuity between the first contact portion 10A and the second contact portion 11A, the sensor unit 24 notifies the control unit 31 that the continuity has been detected.

  The control unit 31 according to the second embodiment executes a power generation process different from the power generation process described in <Power generation process> of the first embodiment. Hereinafter, the power generation process according to the second embodiment will be described in the following <power generation process>.

<Power generation processing>
The control unit 31 causes the power generation unit 20 to generate power when the sensor unit 24 determines that the power receiving apparatus 100 is in the housed state. Hereinafter, this processing content will be described separately for (1) the case where the sensor unit 24 includes a pressure sensor and (2) the case where the sensor unit 24 includes a continuity sensor.

(1) When the sensor unit 24 includes a pressure sensor When the electrical receiver 100b is in the housing state as shown in FIG. 2, the first contact unit 10A comes into contact with the terminal 2C on the positive electrode side of the electronic device, and the second contact unit 11A. Is in contact with the terminal 2D on the negative electrode side of the electronic device. Therefore, when the power receiving device 100b is in the housed state, the first contact portion 10A receives pressure from the positive terminal of the electronic device, and the second contact portion 11A receives pressure from the negative terminal of the electronic device. become. Accordingly, when the control unit 31 determines that pressure is applied to both ends of the first contact unit 10A and the second contact unit 11A, the control unit 31 determines that the power receiving machine 100 is in the housed state. For example, when the control unit 31 acquires that the pressure is detected from the sensor unit 24, the control unit 31 determines that a pressure exceeding the second threshold is applied to both ends of the first contact unit 10A and the second contact unit 11A. To do.

  In addition, in order to make it easier to detect the pressure applied to both ends of the first contact portion 10A and the second contact portion 11A, a member that expands and contracts on the exterior of the receiver 100b may be used. In this case, the distance L2 (see FIG. 2) between the first contact portion 10A and the second contact portion 11A when the power receiving device 100b is in the accommodated state is made to correspond to the height defined by the predetermined standard. .

(2) When the sensor unit 24 includes a continuity sensor When the electric receiver 100b is in the housing state as shown in FIG. 2, the first contact unit 10A is electrically connected to the terminal 2C on the positive electrode side of the electronic device, and the second The contact portion 11A is electrically connected to the terminal 2D on the negative electrode side of the electronic device. Therefore, when the receiving device 100b is in the housed state, the first contact portion 10A and the second contact portion 11A become conductive. Accordingly, when the control unit 31 determines that the first contact unit 10A and the second contact unit 11A are conductive, the control unit 31 determines that the electrical receiver 100 is in the housed state. For example, the control unit 31 determines that the first contact unit 10 </ b> A and the second contact unit 11 </ b> A are conducting when acquiring that the conduction is detected from the sensor unit 24.

[System operation]
<Power generation operation>
Hereinafter, an operation when the power receiving apparatus 100b according to the second embodiment generates electric power will be described with reference to FIG. In the following description, the sensor unit 24 includes a pressure sensor.

  First, the control unit 31 determines whether or not pressure is applied to both ends of the first contact unit 10A and the second contact unit 11A shown in FIG. 3 (step S301). When acquiring that the pressure is detected from the sensor unit 24, the control unit 31 determines that pressure is applied to both ends of the first contact unit 10A and the second contact unit 11A.

  When the control unit 31 determines that pressure is applied to both ends of the first contact unit 10A and the second contact unit 11A (step S301: Yes), the process proceeds to step S302. On the other hand, when the control unit 31 determines that no pressure is applied to both ends of the first contact unit 10A and the second contact unit 11A (step S301: No), the process ends.

  The processing in steps S302 to S305 is the same as the processing in steps S102 to S105 shown in FIG.

  When the sensor unit 24 includes a conduction sensor, the control unit 31 determines whether or not the first contact unit 10A and the second contact unit 11A are conducting in the process of step S301. In this case, the control unit 31 determines that the first contact unit 10 </ b> A and the second contact unit 11 </ b> A are conducting when acquiring the fact that the conduction is detected from the sensor unit 24.

  In the receiving device 100b according to the second embodiment, other effects and functions are the same as those of the receiving device 100 according to the first embodiment.

(Third embodiment)
Next, the receiving device 100c according to the third embodiment will be described. In the following, differences from the power receiving apparatus 100 according to the first embodiment will be mainly described.

  FIG. 10 shows a functional block diagram of a power receiving machine 100c according to the third embodiment of the present invention. 10 that are the same as those shown in FIG. 4 are given the same reference numerals, and descriptions thereof are omitted.

  The power receiving device 100 c includes a power generation unit 20, a communication unit 21, a light emitting unit 22, a notification unit 23, a storage unit 30, a control unit 31, and a power storage unit 40.

  The power storage unit 40 is electrically connected to the positive electrode terminal 10 and the negative electrode terminal 11 and is electrically connected to the power generation unit 20. The power storage unit 40 can store power generated by the power generation unit 20 that has not been supplied to the electronic device (hereinafter referred to as “surplus power”).

  In 3rd Embodiment, the control part 31 may request | require the supply electric power according to the residual amount of the electrical storage part 40 with respect to the power transmission device 200 via the communication part 21 during the electric power generation of the electric power generation part 20. FIG. . For example, when the control unit 31 determines that the remaining amount of the power storage unit 40 is equal to or less than the third threshold value, the control unit 31 transmits a pilot signal including a signal for switching the operation mode of the power transmission device 200 to the high power mode. It transmits via the communication part 21. In addition, for example, when the control unit 31 determines that the remaining amount of the power storage unit 40 exceeds the third threshold value, the control unit 31 outputs a pilot signal including a signal for switching the operation mode of the power transmission device 200 to the low power mode. And transmitted via the communication unit 21.

  In the third embodiment, when the power transmission device 200 receives a pilot signal including a signal for switching the operation mode of the power transmission device 200 to the high power mode from the receiver 100c, the power transmission mode 200 transmits an electromagnetic wave stronger than the current electromagnetic wave. Switch to Further, when the power transmission device 200 receives a pilot signal including a signal for switching the operation mode of the power transmission device 200 to the low power mode from the power receiver 100c, the power transmission device 200 is switched to an operation mode in which an electromagnetic wave weaker than the current electromagnetic wave is transmitted.

[System operation]
<Power generation operation>
Hereinafter, the operation during power generation of the power receiving apparatus 100c according to the third embodiment will be described with reference to FIG.

  First, the control unit 31 determines whether or not the remaining amount of the power storage unit 40 is equal to or less than the third threshold (step S401). When the control unit 31 determines that the remaining amount of the power storage unit 40 is equal to or less than the third threshold (step S401: Yes), the control unit 31 proceeds to the process of step S402. On the other hand, when it determines with the remaining amount of the electrical storage part 40 exceeding the 3rd threshold value (step S401: No), the control part 31 progresses to the process of step S403.

  In the process of step S <b> 402, the control unit 31 transmits a pilot signal including a signal for switching the operation mode of the power transmission device 200 to the high power mode to the power transmission device 200 via the communication unit 21.

  A pilot including a signal for switching the operation mode of the power transmitter 200 from the power receiving machine 100 to the power transmitter 200 when the remaining amount of the power storage unit 40 becomes equal to or smaller than the third threshold value by the processes in steps S401 and S402. A signal is transmitted. Thereby, since the power transmission device 200 is switched to a mode in which an electromagnetic wave stronger than the current electromagnetic wave is transmitted, the power storage unit 40 can be charged rapidly.

  In the process of step S <b> 403, the control unit 31 transmits a pilot signal including a signal for switching the operation mode of the power transmission device 200 to the low power mode to the power transmission device 200 via the communication unit 21.

  A pilot including a signal for switching the operation mode of the power transmitter 200 from the power receiving device 100 to the power transmitter 200 when the remaining amount of the power storage unit 40 exceeds the third threshold value by the processing in steps S401 and S403. A signal is transmitted. Thereby, since the power transmission device 200 is switched to the mode which transmits electromagnetic waves weaker than the current electromagnetic waves, the power consumption of the power transmission device 200 can be reduced.

  In addition, although the example which adds the electrical storage part 40 to the function (refer FIG. 4) of the receiving device 100 which concerns on 1st Embodiment was demonstrated above, the function (FIG. 8) of the receiving device 100b which concerns on 2nd Embodiment. ) May include the power storage unit 40.

  In the receiving device 100c according to the third embodiment, the other effects and functions are the same as those of the receiving device 100 according to the first embodiment.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each component, each step, etc. can be rearranged so that there is no logical contradiction, and multiple components, steps, etc. can be combined or divided into one It is. Further, although the present invention has been described mainly with respect to the apparatus, the present invention can also be realized as a method, a program executed by a processor included in the apparatus, or a storage medium storing the program, and is within the scope of the present invention. It should be understood that these are also included.

DESCRIPTION OF SYMBOLS 1 Power supply system 2 Remote control 2A Battery holder 2B Housing part 2C Positive terminal 2D Negative terminal 3 Clock 100, 100a, 100b, 100c Electric receiving machine 10 Positive terminal 10A First contact part 11 Negative terminal 11A Second contact part 12 Upper surface 13 Bottom surface 14, 14A Main body 14a Upper portion 14b Lower portion 20 Power generation unit 20A Antenna 20B Rectifier circuit 21 Communication unit 22 Light emitting unit 23 Notification unit 24 Sensor unit 30 Storage unit 31 Control unit 40 Power storage unit 200 Power transmitter

Claims (15)

A power generation unit that generates electric power from external electromagnetic waves;
A positive electrode terminal that functions as a positive electrode when outputting the electric power generated by the power generation unit to an external electronic device;
A negative electrode terminal that functions as a negative electrode when the power generated by the power generation unit is output to an external electronic device, and
The positive electrode terminal has a first contact portion that is electrically connected to an external electronic device, and the negative electrode terminal has a second contact portion that is electrically connected to an external electronic device,
The distance between the first contact portion and the second contact portion corresponds to a height defined by IEC 60086 or JISC 8500. The power receiving device according to claim 1,
The electric receiving machine in which a potential difference between the positive electrode terminal and the negative electrode terminal is 0.8V to 1.7V. The power receiving device according to claim 1 or 2,
A main body that houses at least a part of the power generation unit;
An upper surface is disposed on the upper side of the main body, and a bottom surface is disposed on the bottom side of the main body.
The positive terminal is disposed on the upper surface;
The negative electrode terminal is a power receiving device disposed on the bottom surface. The power receiving device according to any one of claims 1 to 3,
A power receiver further comprising a communication unit that communicates with a power transmitter that transmits electromagnetic waves. The power receiving device according to any one of claims 1 to 4,
The power receiving unit generates power when the power receiving unit is in the housed state. The power receiving device according to any one of claims 3 to 5,
The main body is a power receiving machine having a feeding mechanism. The power receiving device according to any one of claims 1 to 4,
A sensor unit for detecting that the power receiver is in the housed state;
The power receiving unit generates power when the sensor unit detects that the power receiving unit is in the housed state. The power receiving device according to claim 7,
The sensor unit includes a pressure sensor that detects pressure applied to both ends of the first contact unit and the second contact unit,
The power receiving unit generates electric power when the pressure sensor detects pressures at both ends of the first contact portion and the second contact portion. The power receiving device according to claim 8,
A power receiving machine, wherein a distance between the first contact part and the second contact part when the power receiving machine is in a stored state corresponds to a height defined in IEC 60086 or JISC 8500. The power receiving device according to claim 7,
The sensor part includes a conduction sensor that detects conduction between the first contact part and the second contact part,
When the continuity sensor detects that the first contact portion and the second contact portion are in continuity, the power generation unit generates power. The power receiving apparatus according to any one of claims 1 to 10,
A power receiving device further comprising a power storage unit electrically connected to the positive electrode terminal and the negative electrode terminal and electrically connected to the power generation unit. The power receiving device according to claim 11,
A communication unit that communicates with a power transmitter that transmits electromagnetic waves;
A power receiving apparatus, further comprising: a control unit that requests the power transmission device according to a remaining amount of the power storage unit via the communication unit. The power receiving machine according to any one of claims 1 to 12,
A power receiving device further comprising a light emitting unit that emits light when the power generating unit is generating power. The power receiving device according to claim 13,
The light emitting unit is a power receiving machine that changes at least one of light emission intensity, light emission mode, and light emission color according to the generated power of the power generation unit. The power receiving device according to any one of claims 1 to 14,
An electrical receiver further comprising a notification unit that notifies when the generated power of the power generation unit is equal to or lower than a first threshold value.

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