Power supply and receiving device and parking device

Abstract

This power feeding / receiving device (100) comprises: a first connection unit (46) to which a moving-body electricity storage device (14) mounted on a moving body (10) is electrically connected; an electricity storage device (50) provided in a removable manner with respect to the power feeding / receiving device (100); a second connection unit (43) to which the electricity storage device (50) is connected; and a control unit (52, 60) for controlling power feeding or power receiving between the moving-body electricity storage device (14) and the electricity storage device (50) via the first connection unit (46) and the second connection unit (43).

Description

[Technical Field]

[0001] The present invention relates to a power supply / reception device configured to be able to supply power to or receive power from a mobile object, and a parking device. [Background technology]

[0002] A known example of this type of device is one in which a connector is connected to a parked electric bicycle via an on-board charging terminal to charge the on-board battery (see, for example, Patent Document 1). In the device described in Patent Document 1, an on-board charging terminal having a charger is connected to an on-board charging device, and power from the on-board charging device is supplied to the on-board battery via the on-board charging terminal. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-211554 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the device described in Patent Document 1 requires that the on-board charging device be placed in a location where power can be supplied from the outside, which limits the degree of freedom in installing a device that is configured to be able to supply power. [Means for solving the problem]

[0005] One embodiment of the present invention is a power supply / reception device configured to be able to supply or receive power between a mobile body, and includes a first connection portion to which a mobile body power storage device mounted on the mobile body is electrically connected, a second connection portion to which a power storage device detachably provided on the power supply / reception device is connected, and a control portion that controls the supply or reception of power between the mobile body power storage device and the power storage device via the first connection portion and the second connection portion. The control unit controls power supply from the mobile body power storage device to the power storage device.

[0006] Another aspect of the present invention is a parking device configured to be able to supply power to or receive power from a vehicle, the parking device including a connection part to which a vehicle power storage device mounted on the vehicle is electrically connected, and a holding part provided with the connection part and holding the vehicle. The holding part has an abutment surface against which the underside of the vehicle abuts. [Effects of the Invention]

[0007] According to the present invention, the degree of freedom in installing the power supply / reception device can be increased. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram schematically showing the overall configuration of a power supply / reception device according to a first embodiment of the present invention. [Figure 2] 1 is a side view showing the overall configuration of a vehicle to which a power supply and reception device according to a first embodiment of the present invention is applied. [Figure 3] FIG. 2 is a perspective view showing a state in which the lid of the battery housing in FIG. 1 is open. [Figure 4] 2 is an enlarged perspective view of a main part of FIG. 1 showing a connection state between a vehicle and a power supply / reception device; [Figure 5] 1 is an electric circuit diagram showing a schematic configuration of an electric circuit of a power supply / reception device according to a first embodiment of the present invention. [Figure 6] FIG. 10 is a diagram schematically showing the overall configuration of a power supply / reception device according to a second embodiment of the present invention. [Figure 7] 7 is a cross-sectional view showing a schematic configuration of a main part of a stand included in the parking device of FIG. 6. [Figure 8] FIG. 6 is an electric circuit diagram showing a schematic configuration of an electric circuit of a power supply / reception device according to a second embodiment of the present invention. [Figure 9] 7 is a side view showing a stand included in the parking device of FIG. 6 and a parked vehicle. [Figure 10] 7 is a cross-sectional view showing an example of a restraining portion provided in a stand included in the parking device of FIG. 6. [Figure 11A] 7 is a cross-sectional view showing another example of a restraining portion provided in a stand included in the parking device of FIG. 6. [Figure 11B] FIG. 11B is a plan view of the restraint portion of FIG. 11A. [Figure 12] FIG. 7 is a plan view of a power supply / reception device that is a modification of FIG. 6. [Figure 13] 13 is a perspective view showing a state in which the stand is disassembled from the battery housing provided in the power supply / reception device of FIG. 12. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] -First embodiment- A first embodiment of the present invention will be described below with reference to Figs. 1 to 5. A power supply / reception device according to the first embodiment of the present invention is configured to be capable of supplying or receiving power (power supply and reception) between the device and a power storage device mounted on a moving object. Moving objects include electric vehicles equipped with electric motors. An example in which the power supply / reception device is applied to an electric vehicle will be described below.

[0010] FIG. 1 is a diagram schematically illustrating the overall configuration of a power supply / reception device 100 according to a first embodiment. As shown in FIG. 1, the power supply / reception device 100 has a parking device 200 for parking vehicles 10. In FIG. 1, a plurality of (three) vehicles 10 are parked in the parking device 200. The vehicles 10 are rental vehicles that are rented out for a rental fee calculated, for example, on an hourly or distance basis. Each vehicle 10 is assigned a unique identification ID, and the type of vehicle 10 can be determined using the identification ID. First, the configuration of the vehicle 10 will be described.

[0011] 2 is a side view showing the overall configuration of a vehicle 10 to which a power supply / reception device 100 according to a first embodiment of the present invention is applied. The vehicle 10 is a stand-up vehicle in which a user (not shown) rides in a standing position with both feet shifted, for example, forward and backward. For convenience, the fore-and-aft direction (length direction), left-right direction (width direction), and up-and-down direction (height direction) of the vehicle 10 are defined below as shown in the figure, and the configuration of each part will be described according to these definitions.

[0012] As shown in FIG. 2, vehicle 10 is a two-wheel vehicle having one front wheel 1 and one rear wheel 2 that rotate around axes CL1, CL2 extending in the left-right direction. Note that vehicle 10 can also be configured as a three-wheel or four-wheel vehicle by replacing at least one of front wheel 1 and rear wheel 2 with two wheels spaced apart in the left-right direction. Vehicle 10 has a total length of, for example, about 1 meter, which is shorter than a standard bicycle. Furthermore, vehicle 10 is also shorter in width and height than a bicycle. Therefore, it is easier to handle than a bicycle.

[0013] The front wheel 1 and the rear wheel 2 are each rotatably supported by a frame 3. The frame 3 has a horizontal frame 31 that extends in the front-to-rear direction between the front wheel 1 and the rear wheel 2 at approximately the same height as the axes CL1 and CL2, and a front frame 32 that protrudes forward from the front end of the horizontal frame 31. An upper surface 31a of the horizontal frame 31 is formed approximately horizontally, and when the vehicle is traveling, the user's feet are placed on this upper surface 31a. The horizontal frame 31 is configured in an approximately plate-like (board-like) shape. For this reason, the vehicle 10 is sometimes called a board-type vehicle.

[0014] The battery pack 14 is attached to the bottom surface of the horizontal frame 31 (see FIG. 4). The battery pack 14 has batteries (cells and modules) serving as secondary batteries, such as lithium-ion batteries. The battery pack 14 is sometimes simply called a battery or an on-board battery. The battery 14 is formed to be thin overall, with its vertical length (height) shorter than its horizontal length (width), and is provided across most of the horizontal frame 31 in the fore-and-aft direction. By arranging the battery 14, which is a heavy object, below the horizontal frame 31 in this way, the center of gravity of the vehicle 10 is lowered, improving driving stability. The battery 14 may also be arranged inside the horizontal frame 31.

[0015] The front frame 32 includes a first front frame 32a extending diagonally upward from the center of the front end of the horizontal frame 31 in the left-right direction, and a second front frame 32b fixed to the front end of the first front frame 32a and extending at an angle so that its upper end is located rearward of its lower end. The second front frame 32b is a substantially cylindrical pipe-shaped member, and a handle shaft 11 with a circular cross section is rotatably inserted inside the second front frame 32b. A handle 12 (so-called bar handle) extending in the left-right direction is attached to the upper end of the handle shaft 11. A front fork 13 is attached to the lower end of the handle shaft 11 and supports the front wheel 1 rotatably about an axis CL1. The front fork 13 is rotatable relative to the second front frame 32b, and when a user turns the handle 12 left or right, the front wheel 1 is steered via the front fork 13.

[0016] A brake lever 12a is provided on each of the left and right ends of the handlebars 12. One end of a brake cable (not shown) is connected to each of the brake levers 12a, and the other end of the brake cable is connected to the brake devices for the front wheel 1 and the rear wheel 2, respectively. The brake devices may be, for example, caliper brakes, rim brakes, drum brakes, or disc brakes that are operated via the brake cables. A display unit 12b is provided in the center of the handlebars 12 to display the state of charge of the battery 14, vehicle speed, and other status of the vehicle 10.

[0017] A pair of left and right brackets 33 protrude rearward from the rear end of the horizontal frame 31, and the rear wheels 2 are supported between the left and right brackets 33 so as to be rotatable about axis line CL2. A rotating electric machine 16 is provided on the front wheels 1. The rotating electric machine 16 is configured as an in-wheel motor that rotates integrally with a rotary shaft extending about axis line CL1. Hereinafter, the rotating electric machine 16 may also be referred to as a motor (electric motor). The motor 16 is configured to be capable of rotating in both forward and reverse directions, and the vehicle 10 travels forward when the motor 16 rotates in the forward direction. The motor 16 may be provided on the rear wheels 2 instead of the front wheels 1.

[0018] A power control unit 17 is provided at the rear end of the horizontal frame 31. The power control unit 17 has an inverter circuit that converts direct current to alternating current and a controller that controls the switching of the inverter circuit. Power is supplied to the motor 16 from the battery 14 via the power control unit 17, thereby driving the front wheels 1 to rotate.

[0019] As shown in FIG. 1 , a stand 18 for holding the vehicle 10 in an upright position is provided on the side of the horizontal frame 31. The stand 18 is generally rod-shaped, and its base end is supported by the horizontal frame 31 so as to be rotatable between a horizontal position and a vertical position. When the vehicle 10 is traveling, the stand 18 is rotated to a horizontal position. In this state, the stand 18 extends in the front-to-rear direction. When parking, the stand 18 is rotated to a vertical position. In this state, the tip of the stand 18 touches the ground, and the vehicle 10 is supported in an upright position by the front wheels 1, the rear wheels 2, and the stand 18.

[0020] Stand 18 has a generally cylindrical shape, and a power line 19 is routed inside stand 18 from the base end to the tip end of stand 18. One end of power line 19 is connected to power control unit 17. The other end of power line 19 is connected to contact 19a provided at the tip end of stand 18.

[0021] The power supply / reception device 100 has a battery housing 40 that houses a power source for supplying power to the battery pack 14 of the vehicle 10, and a rail 45 extending from the battery housing 40. The rail 45 is installed on a road surface 202, and a parking space 201 surrounded by demarcation lines is provided around the rail 45. The battery housing 40 has a lid 41 that can be opened and closed.

[0022] FIG. 3 is a perspective view showing a state in which the lid 41 of the battery housing 40 is open. As shown in FIG. 3, a plurality of battery packs 50 (three in the figure) are arranged side by side in the battery housing 40. More specifically, the battery housing 40 is provided with holders 42 corresponding to the storage positions of the battery packs 50, and the battery packs 50 are detachably supported by the holders 42. The battery packs 50 have batteries (cells or modules) as secondary batteries such as lithium-ion batteries. The battery packs 50 may also be simply referred to as batteries. The batteries 50 have a generally box-like shape (rectangular parallelepiped) overall, and are stored in an upright position.

[0023] A handle 50a is provided on the top of the battery 50. Providing the handle 50a makes it easy to attach and remove the portable battery 50 to and from the holder 42, and to carry the battery 50. An electrode 51 is provided on the bottom surface of the battery 50. A terminal 43 connected to the electrode 51 is provided on the bottom of the holder 42. As shown in FIG. 1, the battery housing 40 also contains a power control unit 52 on the back side of the lid 41. The battery 50 is connected to the power control unit 52 via the electrode 51 and the terminal 43 (FIG. 3). Power supply and discharge of the battery 50 are controlled via the power control unit 52.

[0024] A substantially U-shaped frame 55 is erected on the battery housing 40. A solar panel 56 is attached to the frame 55, and light energy is converted into electrical energy by the solar panel 56. That is, the power supply / receiving device 100 has a solar power generation system, and the power obtained by the solar power generation system is stored in the battery 50 via the terminal 43. As shown in FIG. 3 , a terminal portion 44 to which a power cable is connected is provided on the surface of the battery housing 40, and system AC can be supplied to the power supply / receiving device 100 from the outside via the terminal portion 44. The supplied system AC is converted to DC by the power supply / receiving device 100 and stored in the battery 50.

[0025] As shown in FIG. 1 , a display 57 is further attached to the frame 55, facing the parking space 201. Power is supplied to the display 57 from the battery 50 via the terminal 43, which operates the display 57. Various information to be presented to the user is displayed on the display 57. For example, information such as how to handle the vehicle 10, laws and regulations (city rules), or information about tourist spots and various advertisements is displayed. A sign 58 indicating the presence of the parking space 201 for the vehicle 10 is attached to the top of the frame 55.

[0026] The rail 45 extends linearly from the battery housing 40. A plurality of contacts 46 (four in the figure) are provided at predetermined intervals on the upper surface of the rail 45. The number of contacts 46 is equal to the number of vehicles 10 that can be parked in the parking space 201. Each contact 46 is connected to the power control unit 52 via a power line that extends along the rail 45.

[0027] Figure 4 is an enlarged perspective view of a main part of Figure 1. As shown in Figure 4, vehicle 10 is parked so that the tip of stand 18 abuts contact point 46 on the upper surface of rail 45. This connects contact point 19a at the tip of stand 18 and contact point 46 on rail 45, allowing power to be supplied from battery 50 of power supply / reception device 100 to vehicle 10 via contact points 46, 19a. As a result, battery 14 of vehicle 10 can be charged.

[0028] FIG. 5 is an electrical circuit diagram that schematically illustrates the configuration of the electrical circuit of the power supply / reception device 100. Note that FIG. 5 illustrates a state in which a plurality of (four) vehicles 10 are each connected to the power supply / reception device 100 via contacts 19a. As shown in FIG. 5, a plurality of batteries (BAT) 50 of the power supply / reception device 100 are individually connected to a power control unit (PCU) 52 via power lines 53. Furthermore, a plurality of contacts 46 are individually connected to the power control unit 52 via power lines 54 that are arranged along rails 45. The power control unit 52 has switches 52a connected to the respective power lines 54, and can start and stop the supply of power to the batteries 14 of each vehicle 10 by opening and closing (turning on and off) the switches 52a.

[0029] A controller (ECU) 60 is connected to the power control unit 52. The controller 60 is a computer configured to include an arithmetic processing unit having an ECU, ROM, RAM and other peripheral circuits, and controls the operation of the power control unit 52, such as opening and closing the switch 52a, based on commands from the controller 60. A parking detector 61 and a communication unit 62 are connected to the controller 60.

[0030] The parking detector 61 is for detecting that the vehicle 10 has been parked at a predetermined position within the parking space 201, more specifically, that the contact 19a at the tip of the stand 18 has come into contact with the contact 46 on the rail 45, and is configured, for example, by a push-type switch provided at the position of the contact 46. Note that the positions of the vehicle 10 and the stand 18 may be captured by a camera installed in the parking device 200, and the camera may also be configured as the parking detector 61.

[0031] The communication unit 62 is connected to a network including a public wireless communication network such as the Internet network or a mobile phone network, and is capable of communicating with a management server external to the power supply / reception device 100 via the network. Note that the network also includes closed communication networks provided for each predetermined management area, such as wireless LAN and Wi-Fi (registered trademark). The communication unit 62 is also capable of communicating with an on-board controller (not shown) via a communication unit (not shown) mounted on the vehicle 10.

[0032] When the parking detector 61 detects that the vehicle 10 is parked in a predetermined position, the controller 60 authenticates the vehicle 10. For example, the controller 60 communicates with the vehicle 10 via the communication unit 62 and acquires an identification ID from the vehicle 10. Then, based on the identification ID, the controller 60 determines whether the vehicle 10 is an authorized vehicle that can be charged by the power supply / reception device 100. If the controller 60 determines that the vehicle 10 is an authorized vehicle, it turns on the switch 52a in the power control unit 52 to which the vehicle 10 is connected. This causes power to be supplied from the battery 50 to the battery 14, and the battery 14 is charged. The battery 50 is configured so that the capacity of the battery 50 when fully charged (full charge capacity) is greater than the capacity of the battery 14 when fully charged. This reduces the frequency with which the battery 50 needs to be charged or replaced.

[0033] The controller 60 further acquires vehicle information such as mileage and driving time from the vehicle 10 via the communication unit 62, and transmits the acquired vehicle information to a management server external to the power supply / reception device 100 via the communication unit 62. Information (user information) of users who have used the vehicle 10 is registered in advance in the management server, and the management server calculates the vehicle rental fee to be charged to the user based on the user information and the received vehicle information. The controller 60 also controls the supply of power to the battery 50 by the solar panel 56 and the display on the display 57.

[0034] In this embodiment, the battery 50 is detachably provided in the battery housing 40. Therefore, the controller 60 may read a signal from a sensor that detects the state of charge (SOC) of each battery 50 to recognize the state of charge of each battery 50, and may determine whether each battery 50 needs to be charged or replaced based on the state of charge SOC. If it is determined that a battery 50 needs to be charged or replaced, the controller 60 may notify the owner or manager of the power supply / reception device 100 (such as a terminal owned by the owner or manager) of the need for replacement via the communication unit 62. Whether the battery 50 needs to be charged or replaced may be displayed on the display 57.

[0035] According to the first embodiment, the following advantageous effects can be achieved. (1) A power supply / receiving device 100 according to this embodiment is configured to be able to supply and receive power to and from a vehicle 10 serving as a moving body (FIG. 1). The power supply / receiving device 100 includes a contact 46 to which a battery 14 mounted on the vehicle 10 is electrically connected, a battery 50 detachably provided to the power supply / receiving device 100, a terminal 43 to which the battery 50 is connected, and a power control unit 52 and a controller 60 that control power supply and reception between the battery 14 and the battery 50 via the contact 46 and the terminal 43 (FIG. 5). Because the battery 50 is detachably provided to the power supply / receiving device 100 in this manner, it is not necessary to use system AC to charge the in-vehicle battery 14, thereby increasing the flexibility in installation of the power supply / receiving device 100. In other words, if the remaining capacity of the battery 50 becomes insufficient during use, the battery 50 used in the power supply / receiving device 100 can be replaced with a fully charged battery 50, thereby allowing the in-vehicle battery 14 to be sufficiently charged without using system AC.

[0036] (2) The power supply / reception device 100 has a plurality of terminals 43 connected to the battery 50 (FIG. 5). This allows the power supply / reception device 100 to be provided with a plurality of batteries 50, and sufficient power can be supplied even when there are a plurality of batteries 14 on the power receiving side.

[0037] (3) The power supply / reception device 100 further includes a battery housing 40 that houses the battery 50 (FIG. 3). This allows the battery 50 to be protected in an unmanned parking space 201.

[0038] (4) The power supply / receiving device 100 further includes a terminal unit 44 on the battery housing 40 to which an external power source is connected via a cable (FIG. 3). This allows the battery 50 to be charged by power supplied via the terminal unit 44 while the battery 50 is left in the battery housing 40. This eliminates the need to replace the battery 50, or reduces the frequency of battery 50 replacement.

[0039] (5) The power supply / receiving device 100 further includes a solar panel 56 (photovoltaic power generation unit) that is electrically connected to the terminal 43 and receives sunlight to generate electricity (FIG. 1). This allows the battery 50 to be charged while placed in the battery housing 40 without connecting the power supply / receiving device 100 to a system AC.

[0040] (6) The power supply / reception device 100 further includes a display 57 (FIG. 1) that is electrically connected to the terminal 43 and presents various information to the user of the power supply / reception device 100, i.e., the user of the vehicle 10. This allows the user to easily obtain necessary information, improving user convenience.

[0041] (7) The power supply / receiving device 100 has a rail 45 arranged in the parking space 201 ( FIG. 1 ). The vehicle 10 has a stand 18 with a power line 19 extending therefrom ( FIG. 4 ). A contact 46 is provided on the rail 45 so that a contact 19 a at the tip of the stand 18 can abut against the rail 45 ( FIG. 4 ). This allows charging of the battery 14 to begin simply by parking the vehicle 10, making charging of the battery 14 easy. That is, the stand 18 is rotatably provided so as to hold the vehicle 10 in a self-supporting position. Therefore, by supplying power to the battery 14 via the stand 18, the user does not need to connect the contact 19 a to the contact 46 separately from parking the vehicle, and charging of the battery 14 can begin quickly.

[0042] -Second embodiment- A second embodiment of the present invention will be described with reference to Figures 6 to 13. Differences from the first embodiment will be mainly described below. The second embodiment differs from the first embodiment mainly in the configuration of the parking device 200. That is, while the first embodiment is configured so that the vehicle 10 is parked by abutting the tip of the stand 18 on the rail 45, the second embodiment is configured so that a stand for parking the vehicle 10 is provided in the parking space 201. Therefore, it is not necessary to provide the stand 18 on the vehicle itself.

[0043] FIG. 6 is a diagram schematically illustrating the overall configuration of a power supply / reception device 100 according to the second embodiment. The same components as those in FIG. 1 are assigned the same reference numerals. As shown in FIG. 6, the power supply / reception device 100 according to the second embodiment has a battery housing 40 that houses multiple batteries 50, and a stand 70 that extends from the battery housing 40 onto a road surface 202. Parking spaces 201 for parking multiple vehicles 10 are provided around the stand 70. Although not shown, the power supply / reception device 100 is also provided with a solar panel 56 (FIG. 1) and a display 57 (FIG. 1).

[0044] In Figure 6, the front-rear, left-right, and up-down directions of the stand 70 are defined according to the front-rear, left-right, and up-down directions of the vehicle 10 in a parked state. The stand 70 is installed on the road surface 202 and extends in the left-right direction. A plurality of recesses 71 (six in the figure) are provided on the upper surface of the stand 70 at equal intervals in the left-right direction. Each recess 71 has a bottom surface 72 that extends in a substantially horizontal direction above the road surface 202, and a pair of left and right side wall portions 73 that extend vertically upward from both left and right ends of the bottom surface 72. The front and rear of the recess 71 are open. The bottom surface 72 is provided with a gentle downward slope from its rear end to its front end.

[0045] FIG. 7 is a cross-sectional view showing a schematic configuration of the main components of the stand 70. As shown in FIG. 7, the heights of the bottom surfaces 72 of the recesses 71 (heights from the road surface 202) are set to alternately different heights in the left-right direction. The vehicle 10 is placed on the bottom surface 72 with the bottom surface of the horizontal frame 31 of the vehicle 10 abutting against the bottom surface 72. This prevents the handlebars 12 of the vehicles 10 (sometimes referred to as the first vehicle 10A and the second vehicle 10B for convenience) placed in adjacent recesses 71 (sometimes referred to as the first recess 71A and the second recess 71B for convenience) from interfering with each other. The left-right length of the recess 71, i.e., the distance between the left and right side wall portions 73, is longer than the width (left-right length) of the horizontal frame 31. However, the difference in left-right length is, for example, several centimeters to several tens of centimeters. This allows the side wall portions 73 to regulate the left-right position of the vehicle 10.

[0046] The stand 70 is provided with a plurality of wireless charging units 74 corresponding to the plurality of recesses 71. Each wireless charging unit 74 has a power generation unit and a power feeding coil 75 arranged facing the bottom surface 72 of each recess 71, and is configured to be able to charge the battery 14 without contact between the contacts of the vehicle 10 and the power feeding / receiving device 100, that is, wirelessly. More specifically, the power generation unit generates high-frequency power using power supplied from the battery 50 and supplies the high-frequency power to the power feeding coil 75. The vehicle 10 has a power receiving coil 35 connected to the power control unit 17 (FIG. 2) at the bottom of the horizontal frame 31. The power receiving coil 35 is arranged to face the power feeding coil 75 of the wireless charging unit 74 when the vehicle is parked.

[0047] FIG. 8 is an electrical circuit diagram showing the configuration of the main parts of the power supply / reception device 100 according to the second embodiment. The same reference numerals are used for the same components as those in FIG. 5. Although not shown, the power generation unit of the wireless charging unit 74 is provided between the power control unit 52 and the power supply coil 75. The power generation unit may also be provided within the power control unit 52. In FIG. 8, when the parking detector 61 (FIG. 1) detects that the vehicle 10 has been parked in the recess 71 of the stand 70, the controller 60 authenticates the vehicle 10 and then controls the power generation unit to supply high-frequency power to the power supply coil 75 corresponding to the parking position. This transfers power to the power receiving coil 35 of the vehicle 10 using the principle of electromagnetic induction, and the battery 14 is charged via the power control unit 17.

[0048] As shown in FIG. 6, lamps 78 are attached to the stand 70 in correspondence with each recess 71 to notify the user of the power supply / reception status and charging status of the battery 14. For example, the lamps 78 are attached to the rear surface of the side wall portion 73 of the stand 70. The lamps 78 are provided to indicate different states depending on whether charging is in progress or charging is complete. For example, the lamps 78 are provided to flash during charging and to illuminate when charging is complete, or to illuminate in a first color during charging and to illuminate in a second color when charging is complete. This allows the user of the vehicle 10 to easily recognize the status of the vehicle 10 and use the vehicle 10 in an appropriate state. The display of the lamps 78 is controlled by the controller 60 (FIG. 8).

[0049] 9 is a side view of vehicle 10 in a parked state. As shown in FIG. 9, stand 70 has an inclined surface 76 that is connected to the rear end of bottom surface 72 of recess 71 and slopes downward toward the rear, and a vertical surface 77 that is connected to the front end of bottom surface 72 and extends vertically downward. Bottom surface 72 of stand 70 is formed to be longer in the front-to-rear direction than horizontal frame 31. When parking vehicle 10 in stand 70, a user moves vehicle 10 from rear to front along recess 71.

[0050] At this time, the front wheel 1 moves along the inclined surface 76 above the road surface 202, and then moves forward along the bottom surface 72. When the front wheel 1 approaches the front end of the bottom surface 72, the rear wheel 2 moves along the inclined surface 76 above the road surface 202. When the center of the front wheel 1 passes the front end of the bottom surface 72, the front wheel 1 drops from the bottom surface 72 as shown in FIG. 9, causing the horizontal frame 31 to abut against the bottom surface 72 of the recess 71.

[0051] In this state, the front wheel 1 and rear wheel 2 of the vehicle 10 are positioned in front of and behind the bottom surface 72, respectively. That is, the front wheel 1 abuts against the front corner of the bottom surface 72, while the rear wheel 2 remains placed on the inclined surface 76. This restricts the position of the vehicle 10 in the fore-and-aft direction. Therefore, the power receiving coil 35 in FIG. 7 can be properly positioned opposite the power feeding coil 75, and power can be efficiently supplied wirelessly from the power feeding / receiving device 100 to the vehicle 10.

[0052] The power supply and reception device 100 according to the second embodiment includes a wireless charging unit 74 to which a battery 14 mounted on the vehicle 10 is electrically connected, a battery 50 provided detachably with respect to the power supply and reception device 100, terminals 43 to which the battery 50 is connected, and a power control unit 52 and a controller 60 that control power supply and reception between the battery 14 and the battery 50 via the wireless charging unit 74 (power supply coil 75) and the terminals 43 (FIGS. 7 and 8). Therefore, as in the first embodiment, there is no need to use system AC for the power supply and reception device 100, which increases the degree of freedom in installing the power supply and reception device 100.

[0053] According to the second embodiment, the following advantageous effects different from those of the first embodiment can be achieved. (1) The wireless charging unit 74 (power supply coil 75) is configured to be able to wirelessly supply and receive power to the in-vehicle battery 14 via the power receiving coil 35 (FIGS. 7 and 8). This eliminates the need to connect a contact point on the vehicle 10 to the power supply / reception device 100, and allows the in-vehicle battery 14 to be easily charged.

[0054] (2) The power supply / reception device 100 further includes a stand 70 for holding the vehicle 10, and a wireless charging unit 74 is provided on the stand 70 (FIGS. 6 and 7). This allows the vehicle 10 to be held in a predetermined position while parked, and allows efficient wireless charging via the power supply coil 75 and the power receiving coil 35 that face each other.

[0055] (3) The stand 70 has a first recess 71A for holding the first vehicle 10A and a second recess 71B for holding the second vehicle 10B (FIGS. 6 and 7). The first recess 71A and the second recess 71B are adjacent to each other and are provided at different heights (FIG. 7). This prevents the handles 12 of adjacent vehicles 10A, 10B from interfering with each other, allowing more vehicles 10 to be parked in a given parking space 201 whose left-right length is limited.

[0056] (4) The stand 70 is provided so as to hold the front wheels 1 and rear wheels 2 of the vehicle 10 in a state where they are lifted above the road surface 202 on which the power supply / receiving device 100 is installed, i.e., spaced apart from the installation surface (FIG. 9). This allows the vehicle 10 to be supported via the horizontal frame 31 between the front wheels 1 and rear wheels 2, thereby stably supporting the vehicle 10.

[0057] (5) The recess 71 of the stand 70 has a bottom surface 72 against which the lower surface of the horizontal frame 31 of the vehicle 10 abuts (FIGS. 7 and 9). This allows the vehicle 10 to be easily and stably supported without using the vehicle's own stand (stand 18 in FIG. 1).

[0058] (6) The bottom surface 72 of the recess 71 is provided with a gentle downward slope from its rear end to its front end (FIG. 9). This allows rainwater and other water on the bottom surface 72 to fall off from the front end, preventing rainwater and other water from remaining on the bottom surface 72 and maintaining good contact between the horizontal frame 31 and the bottom surface 72.

[0059] (7) The stand 70 further includes an inclined surface 76 and a vertical surface 77 that are connected to the rear end and front end of the bottom surface 72 of the recess 71, respectively, and extend at an angle different from the inclination angle of the bottom surface 72 (FIG. 9). This makes it possible to easily guide the vehicle 10 to a predetermined position above the road surface 202, and to easily position the vehicle 10 in the fore-and-aft direction.

[0060] (8) The inclined surface 76 extends downward from the rear end of the bottom surface 72 at an angle greater than the angle of inclination of the bottom surface 72 with respect to the horizontal plane, and the vertical surface 77 extends substantially vertically downward from the front end of the bottom surface 72 ( FIG. 9 ). This allows the vehicle 10 to be easily positioned in the recess 71 with the front wheel 1 dropped and the horizontal frame 31 abutting against the bottom surface 72.

[0061] (9) The stand 70 is provided to hold the front wheel 1 and the rear wheel 2 in front of and behind the bottom surface 72 of the recess 71 (FIG. 9). As a result, the horizontal frame 31 of the vehicle 10 and the front wheel 1 and the rear wheel 2 are simultaneously supported by the stand 70, so that the vehicle 10 can be stably supported.

[0062] (10) The recess 71 of the stand 70 further has side walls 73 that are erected facing the left and right sides of the vehicle 10 ( FIG. 7 ). This allows the left-right position of the vehicle 10 to be regulated, enabling efficient wireless charging.

[0063] (11) The power supply / reception device 100 further includes a lamp 78 that notifies information about the power supply / reception state between the power supply device 100 and the on-board battery 14 via the power supply coil 75 and the power storage state of the battery 14 ( FIG. 6 ). This allows the user to easily recognize the state of the battery 14 and use the vehicle 10 in an appropriate state.

[0064] In the above embodiment, the stand 70 is configured to hold the vehicle 10. However, the stand 70 may also be provided with a restraining portion for restraining the vehicle 10. FIG. 10 is a vertical cross-sectional view (viewed from the rear) of a main portion of the stand 70 showing an example of the restraining portion. As shown in FIG. 10, an upper wall portion 79 is provided at the upper end of the side wall portion 73, protruding in a substantially horizontal direction toward the inside in the left-right direction so as to cover the upper portion of the recessed portion 71. The vehicle 10 is placed in the recessed portion 71 through a space inside the left-right direction of the upper wall portion 79, and in a parked state in which the horizontal frame 31 abuts against the bottom surface 72 of the stand 70, the lower surface of the upper wall portion 79 is positioned above the upper surface of the horizontal frame 31.

[0065] With the horizontal frame 31 in contact with the bottom surface 72 of the recess 71, the user moves the vehicle 10 in the left-right direction (e.g., leftward) as indicated by the arrow in Fig. 10. This causes a portion of the horizontal frame 31 to be covered by the upper wall portion 79. As a result, the horizontal frame 31 is prevented from moving upward, and the vehicle 10 is restrained in the parked state.

[0066] FIG. 11A is a vertical cross-sectional view (viewed from the rear) of a main portion of a stand 70 showing another example of a restraining unit that restrains a vehicle 10, and FIG. 11B is a plan view (viewed from above). As shown in FIGS. 11A and 11B, a support 81 is provided on the upper end surface of a side wall 73 of the stand 70, and the support 81 supports a lever 80 so that the lever 80 can rotate up and down as indicated by the arrow in FIG. 11A. The support 81 has a locking mechanism that holds the lever 80 in a locked position rotated downward as shown. This allows the vehicle 10 to be restrained with the horizontal frame 31 abutting against the bottom surface 72 of the recess 71. Note that the support 81 may be provided with an actuator (e.g., an electric motor) for rotating the lever 80. When it is detected that the horizontal frame 31 has been placed on the bottom surface 72 with the lever 80 rotated upward, the actuator may be driven to rotate the lever 80 to the locked position.

[0067] In the above embodiment (FIG. 6), the recess 71 is formed in a direction (front-rear direction) approximately perpendicular to the direction in which the stand 70 extends (left-right direction). However, the recess 71 may be formed at an angle to the direction in which the stand 70 extends. FIG. 12 is a plan view of a parking device 200 and a power supply / receiving device 100 showing an example. In FIG. 12, the battery housing 40 is formed in a generally triangular shape in a plan view, more specifically, a generally right-angled triangle shape. Within this battery housing 40, as shown by dotted lines in FIG. 12, multiple (three) batteries 50 are arranged facing each vertex of the battery housing 40. The stand 70 extends from the hypotenuse of the right-angled triangle of the battery housing 40 in the direction in which the road 203 extends, and is arranged along the road 203.

[0068] The recesses 71 of the stand 70 are formed obliquely with respect to the direction in which the stand 70 extends, in other words, obliquely with respect to the traveling direction of the vehicle 10 on the road 203. This eliminates the need to change the orientation of the vehicle 10 to a right angle with respect to the road 203 when parking the vehicle 10, making it easy to park the vehicle 10 in the stand 70. When the vehicles 10 are parked, the positions of the handlebars 12 of adjacent vehicles 10 are misaligned. For this reason, it is not necessary to change the height of the bottom surfaces of adjacent recesses as shown in FIG. 6. Furthermore, in the example of FIG. 12, the width W of the parking space 201 adjacent to the road 203 can be made shorter than in the example of FIG. 6. This allows multiple vehicles 10 to be efficiently arranged in the limited space adjacent to the road 203.

[0069] In the second embodiment (FIGS. 6 and 12), the stand 70 may be provided so as to be detachable from the battery housing 40. Also, a plurality of stands 70 may be connected together to form a long stand 70 as a whole. FIG. 13 is a diagram showing an example of this. In FIG. 13, the stand 70 is configured so as to be separable into a first stand 70A and a second stand 70B via a terminal 40a, and the first stand 70A is configured so as to be detachable from the battery housing 40 via a terminal 40b.

[0070] In this way, the first stand 70A is provided adjacent to the battery housing 40 and is detachably attached to the battery housing 40, so that the battery housing 40 and the stand 70 can be configured separately. This simplifies the configuration of the battery housing 40 and the stand 70, and makes them easy to transport. Furthermore, the second stand 70B is provided detachably attached to the first stand 70A, so that the length of the stand 70 can be easily changed depending on the parking space 201. For example, when a new power supply / receiving device 100 is installed on the road surface 202, the stand 70 can be easily set to a predetermined length simply by attaching the first stand 70A to the battery housing 40 in the direction of the arrow in FIG. 13 and attaching the second stand 70B to the first stand 70A in the direction of the arrow in FIG. 13.

[0071] The above-described embodiment can be modified in various ways. Some modifications will be described below. In the above-described embodiment, the contact 46 or the power supply coil 75 is configured as a connection portion (first connection portion) to which the battery 14 (vehicle power storage device, mobile body power storage device) of the vehicle 10, which is a mobile body, is electrically connected. However, the configuration of the connection portion or the first connection portion is not limited to the above. In the above-described embodiment ( FIG. 3 ), three batteries 50 are accommodated at the same height in the battery housing 40 as an accommodating portion. However, the power supply / receiving device may be configured to have multiple tiers of accommodating portions at different heights. In the above-described embodiment, the battery 50 is accommodated in the battery housing 40 in a substantially upright position. However, the battery 50 may be accommodated in an inclined position or a horizontal position. In the above-described embodiment, multiple batteries 50 are accommodated in the battery housing 40. However, a single battery may be accommodated. In other words, the configuration of the power storage device detachably provided to the power supply / receiving device is not limited to the above.

[0072] In the above embodiment, the terminal 43 ( FIG. 3 ) inside the battery housing 40 is configured as a second connection portion to which the battery 50 (power storage device) is connected. However, the configuration of the second connection portion is not limited to the above. A single second connection portion may be provided in the battery housing 40. In the above embodiment, the controller 60 controls the power control unit 52 to charge the battery 14 from the battery 50, i.e., to control the power supply from the power supply / reception device 100 to the vehicle 10. However, the configuration of the control portion is not limited to the above. Power may be supplied from the battery 14 to the battery 50, i.e., the power supply / reception device 100 may receive power from the vehicle 10. In other words, the control portion may have any configuration as long as it controls the power supply or power reception between the mobile body power storage device and the power storage device via the first connection portion and the second connection portion.

[0073] In the above embodiment, the vehicle 10 is held by the stand 70 having the power supply coil 75 for electrically connecting to the on-board battery 14, but the configuration of the holding portion is not limited to that described above. In the above embodiment, the power supply / reception device 100 has the stand 70 (mobile body connection portion) to which the vehicle 10 as a mobile body is connected and the battery housing 40 (power storage device connection portion) to which the battery 50 as a power storage device is connected, and the mobile body connection portion and the power storage device connection portion are detachably provided from each other, but the configuration of the mobile body connection portion and the power storage device connection portion is not limited to that described above. In the above embodiment ( FIG. 7 ), a plurality of vehicles 10A, 10B as the first mobile body and the second mobile body are held by the first recess 71A (first holding portion) and the second recess 71B (second holding portion) that are adjacent to each other and provided at different heights from each other. In the above embodiment (FIG. 13), the second stand 70B (second holding portion) is provided detachably with respect to the first stand 70A (first holding portion). However, the configurations of the first holding portion and the second holding portion that hold different vehicles 10 are not limited to those described above.

[0074] In the above embodiment (FIG. 3), the stand 70 (holding portion) is configured so that the vehicle 10 is held with the front wheel 1 and rear wheel 2 of the vehicle 10 spaced apart from the road surface 202 (installation surface), but the holding portion may be configured so that at least a portion of the moving body is held apart from the installation surface, rather than the front wheel 1 and rear wheel 2. In the above embodiment, the lower surface of the horizontal frame 31 of the vehicle 10 is made to abut against the bottom surface 72 of the recess 71 of the stand 70, but the configuration of the abutment surface against which the lower surface of the moving body abuts is not limited to that described above. In the above embodiment, the bottom surface 72 has a gentle slope, but the abutment surface may also be a horizontal surface.

[0075] In the above embodiment, the stand 70 is provided with an inclined surface 76 (first connection surface) and a vertical surface 77 (second connection surface) that are continuous with the bottom surface 72 of the recess 71, but the configurations (e.g., inclination angles) of the first and second connection surfaces are not limited to those described above. In the above embodiment (FIG. 6), the lamp 78 attached to the stand 70 is used to notify information about the power supply state between the batteries 14 and 50 and the charge storage state of the battery 14, but the configuration of the notification unit is not limited to this. In the above embodiment, the terminal portion 44 (third connection portion) that is electrically connected to an external power supply unit is provided on the surface of the battery housing 40, but the third connection portion may be omitted.

[0076] In the above embodiment (FIG. 1), the battery 50 is charged with power obtained via the solar panel 56, but the power from the solar panel 56 may be supplied to the in-vehicle battery 14 via the contact 46 or the power supply coil 75. In the above embodiment, various information is presented to the user via the display 57, but the configuration of the information presentation unit is not limited to that described above. In the above embodiment (FIG. 4), the power line 19 is extended along the stand 18 of the vehicle 10, and the contact 19a is abutted against the contact 46 on the rail 45, but the power line may be arranged on another member provided on the mobile object to electrically connect the vehicle to the power supply / reception device.

[0077] In the above embodiment, a stand-on vehicle 10 having a front wheel 1 and a rear wheel 2 is applied to the power supply / reception device 100 and the parking device 200, but the mobile body to which the present invention is applied may be a two-wheeled vehicle other than a stand-on vehicle, or may be a vehicle other than a two-wheeled vehicle. It may also be a vehicle without an electric motor. The present invention can also be applied to mobile bodies other than vehicles.

[0078] The above description is merely an example, and the present invention is not limited to the above-described embodiment and modifications as long as the features of the present invention are not impaired. One or more of the above-described embodiment and modifications can be arbitrarily combined, and modifications can also be combined with each other. [Explanation of symbols]

[0079] 1 front wheel, 2 rear wheel, 10 vehicle, 14 battery, 16 motor, 19a contact, 31 horizontal frame, 35 power receiving coil, 40 battery housing, 43 terminal, 44 terminal portion, 46 contact, 50 battery, 52 power control unit, 56 solar panel, 57 display, 60 controller, 70 stand, 71 recess, 72 bottom surface, 73 side wall portion, 74 wireless charging portion, 75 power supply coil, 76 inclined surface, 77 vertical surface, 78 lamp, 79 upper wall portion, 80 lever, 81 support portion, 100 power supply / receiving device, 200 parking device

Claims

1. A power supply / reception device configured to be able to supply or receive power to or from a mobile object, a first connection portion to which a mobile body power storage device mounted on the mobile body is electrically connected; a second connection portion to which a power storage device detachably provided on the power supply / reception device is connected; a control unit that controls power supply or power reception between the mobile body power storage device and the power storage device via the first connection unit and the second connection unit, The power supply / reception device, wherein the control unit controls power supply from the mobile body power storage device to the power storage device.

2. In the power supply / receiving device according to claim 1, The power supply / reception device, wherein the control unit controls power supply from the mobile body power storage device to the power storage device and power supply from the power storage device to the mobile body power storage device.

3. In the power supply / receive device according to claim 1 or 2, the first connection portion is a plurality of first connection portions, the second connection portion includes a plurality of second connection portions to which the plurality of power storage devices are connected, The control unit is interposed between the plurality of first connection portions and the plurality of second connection portions so as to individually control the power supply from the plurality of power storage devices to each of the plurality of first connection portions.

4. In the power supply / receive device according to claim 1 or 2, A power supply / reception device comprising a plurality of the second connection portions.

5. In the power supply / reception device according to any one of claims 1 to 4, The power supply / reception device further comprises a housing portion that houses the power storage device.

6. In the power supply / reception device according to any one of claims 1 to 4, A power supply / reception device, further comprising a holding portion having the first connection portion and holding the moving body.

7. In the power supply / receiving device according to claim 6, the moving body includes a first moving body and a second moving body, the holding unit includes a first holding unit that holds the first moving body and a second holding unit that holds the second moving body, The power supply / reception device, wherein the first holding portion and the second holding portion are adjacent to each other and are provided at different heights.

8. In the power supply / receiving device according to claim 7, The power supply / reception device, wherein the second holding portion is detachably provided with respect to the first holding portion.

9. In the power supply / receive device according to claim 7 or 8, Further, a housing portion that houses the power storage device is provided, The power supply / reception device, wherein the first holding portion is adjacent to the housing portion and is detachably provided with respect to the housing portion.

10. In the power supply / reception device according to any one of claims 6 to 9, The power supply / reception device, wherein the holding section is provided to hold at least a part of the moving body at a distance from an installation surface on which the power supply / reception device is installed.

11. In the power supply / reception device according to any one of claims 6 to 10, The power supply / reception device, wherein the holding portion has a contact surface against which a lower surface of the moving body comes into contact.

12. In the power supply / receiving device according to claim 11, The power supply / reception device, wherein the contact surface is provided with a downward inclination from one end to the other end.

13. In the power supply / receiving device according to claim 12, The power supply / receiving device is characterized in that the holding portion further has a first connection surface and a second connection surface that are connected to the one end and the other end of the abutment surface, respectively, and extend at an angle different from the inclination angle of the abutment surface.

14. The power supply / reception device according to any one of claims 11 to 13, The power supply / reception device, wherein the holding portion further has a side wall portion erected to face a side surface of the moving body.

15. In the power supply / reception device according to any one of claims 6 to 14, The power supply / reception device, wherein the holding section further includes a restraining section that restrains the moving body held by the holding section.

16. In the power supply / reception device according to any one of claims 1 to 15, The power supply / reception device further comprises a notification unit that notifies information on at least one of a power supply / reception state between the power supply / reception device and the mobile body power storage device via the first connection unit and a power storage state of the mobile body power storage device.

17. In the power supply / reception device according to any one of claims 1 to 16, The power supply / reception device, wherein the control unit has a determination unit that determines whether or not the power storage device needs to be charged or replaced based on a power storage state of the power storage device.

18. In the power supply / receiving device according to claim 17, The control unit further includes a notification unit that notifies the owner or manager of the power supply / reception device or the power storage device of the need for charging or replacement when the determination unit determines that the power storage device needs to be charged or replaced.

19. In the power supply / reception device according to any one of claims 1 to 18, a mobile body connection portion having the first connection portion and to which the mobile body is connected; a power storage device connection portion having the second connection portion and to which the power storage device is connected, The power supply / reception device, wherein the mobile object connection section and the power storage device connection section are provided so as to be detachable from each other.

20. In the power supply / reception device according to any one of claims 1 to 19, A power supply / reception device, wherein a full charge capacity of the power storage device is greater than a full charge capacity of the mobile body power storage device.

21. The power supply / reception device according to any one of claims 1 to 20, The power supply / reception device further comprises a third connection part electrically connected to a power supply part external to the power supply / reception device.

22. The power supply / reception device according to any one of claims 1 to 21, The power supply / reception device further comprises a solar power generation unit electrically connected to at least one of the first connection unit and the second connection unit, and receiving sunlight and generating electricity.

23. The power supply / reception device according to any one of claims 1 to 22, The power supply / reception device further comprises an information presentation unit electrically connected to at least one of the first connection unit and the second connection unit, and presenting information to a user of the power supply / reception device.

24. The power supply / reception device according to any one of claims 1 to 23, The power supply / reception device is characterized in that the first connection unit is configured to be able to wirelessly supply and receive power to and from the mobile body power storage device.

25. The power supply / reception device according to any one of claims 1 to 23, The power supply / reception device, wherein the first connection portion is configured to be able to abut against a member having a power line provided on the moving body.

26. In the power supply / receiving device according to claim 25, The power supply / reception device, wherein the member is a stand provided to hold the moving body in a self-supporting position.

27. ​​In the power supply / reception device according to any one of claims 1 to 26, The power supply / reception device is characterized in that the moving body is a vehicle having wheels.

28. A parking device configured to be able to supply or receive power to or from a vehicle, a connection portion electrically connected to a vehicle power storage device mounted on the vehicle and capable of receiving electric power from the vehicle; a holding portion provided with the connection portion and configured to hold the vehicle, A parking device characterized in that the holding portion has an abutment surface against which the underside of the vehicle abuts.

29. In the parking device described in claim 28, A parking device characterized in that the holding portion is configured to hold the wheels of the vehicle at a distance from the installation surface on which the parking device is installed.

30. In the parking device according to claim 28 or 29, the vehicle has front and rear wheels; A parking device characterized in that the holding portions are arranged to hold the front wheels and the rear wheels in front of and behind the abutment surface, respectively.

Images