JP5654442B2 - Vehicle storage device - Google Patents

Description

  The present invention relates to a vehicle storage device that is a three-dimensional parking lot or a three-dimensional bicycle parking lot that can charge a vehicle.

  In recent years, electric vehicles including hybrid cars, electric motorcycles, and electric assist bicycles are becoming popular. It is desirable for these vehicles to have their batteries charged while parked. For this reason, a three-dimensional parking lot that can charge a parked car is also known (see, for example, Patent Document 1). This three-dimensional parking lot is a tower type, and a pallet on which a vehicle is mounted is provided with a vehicle side connector and a power feeding cable. And the connector for pallets is arrange | positioned in the predetermined position of a pallet, and the electric power feeding side connector is arrange | positioned at the pillar etc. of a multistory parking lot. When the pallet on which the vehicle is mounted moves to a predetermined position, the pallet connector and the power supply side connector are connected and energized.

Japanese Patent Laid-Open No. 10-30354

  The multi-story parking lot is not only a tower type as described in Patent Document 1, but also a small and simple multi-story parking lot that is arranged in the premises of an apartment house such as an apartment. Since such a multi-story parking lot is often outdoors and exposed to wind and rain, if the pallet connector and the power supply side connector as in Patent Document 1 are used, it is necessary to take measures against defective energization due to dust adhesion or moisture. there were. Furthermore, a small and simple multistory parking lot is weaker in strength than a tower type multistory parking lot, and the pallet may vibrate when a car is put in and out or in a neighboring multistory parking lot. If the pallet connector and the power supply side connector as in Patent Document 1 are used, it is necessary to take measures against vibration to prevent damage or contact failure due to vibration. If such a countermeasure is applied to the pallet connector and the power supply side connector as in Patent Document 1, there is a problem that the cost of the multilevel parking lot increases.

  Therefore, in order to solve the above-described problems, an object of the present invention is to provide a vehicle storage device that does not require countermeasures against energization failure and vibration.

  In order to solve the above-described problems, the present invention supplies power to the pallet with the non-contact power feeding means.

  Specifically, a vehicle storage device according to the present invention includes a movable pallet on which a vehicle is mounted, a power receiving coil disposed at a power receiving point that is a specific position of the pallet, and a movable area of the pallet. A power transmission coil disposed at a power transmission point that is a position where power can be fed in a non-contact manner toward the power receiving coil when the pallet is at a preset power feeding position.

  The vehicle storage device includes a power transmission coil on a wall (power transmission point) that is fixed to the ground and does not move, and a power reception coil at a predetermined position (power reception point) on a movable pallet. For this reason, when the pallet has moved to a predetermined position (power supply position), electric power can be transmitted from the power transmission coil to the power reception coil in a non-contact manner using electromagnetic induction or electromagnetic resonance. That is, the vehicle storage device can be energized even if dust adheres or moisture is present, and since it is non-contact, it is not necessary to take measures against vibrations to prevent breakage or contact failure. Therefore, the present invention can provide a vehicle storage device that does not require countermeasures against energization failure or vibrations.

  The vehicle storage device according to the present invention further includes an interval adjustment mechanism for adjusting an interval between the power receiving coil and the power transmission coil. When the pallet is moved, the interval can be widened to prevent a collision between the power receiving coil and the power transmitting coil, and during power feeding, the interval can be narrowed to increase the efficiency of power transmission from the power transmitting coil to the power receiving coil.

  The vehicle storage device according to the present invention has a plurality of the pallet, the power transmission coil, and the power supply position, the power supply position is determined for each pallet, and power is supplied when the pallet is at the determined power supply position. The power reception point and the power transmission point are set as possible. The pallet may move and stop at a position other than a predetermined position. In such a state, power is not supplied to the pallet side. This vehicle storage device can be charged accurately.

  There are a plurality of the pallet, the power transmission coil, and the power feeding position of the vehicle storage device according to the present invention, and the power receiving point and the power transmission point are set so that power can be fed regardless of the power feeding position of the pallet. It is characterized by. By making power supply possible regardless of the position of the pallet, the time during which the vehicle cannot be charged can be shortened, and the time until the vehicle is fully charged can be shortened.

  Moreover, it is preferable to further comprise a management circuit for managing which power transmission coil is transmitting power to the power reception coil of which pallet. Accurate billing is possible no matter how the pallet changes position.

  One of the power transmission coil and the power reception coil of the vehicle storage device according to the present invention is larger than the other. Even when the pallet vibrates, power can be continuously supplied, and the time until the vehicle is fully charged can be shortened.

  The power transmission coil of the vehicle storage device according to the present invention has a shape along a locus of the power reception point accompanying the movement of the pallet, and the power feeding position is continuous. Electricity can be continuously supplied even during vibration of the pallet, and the time until the vehicle is fully charged can be shortened.

  The vehicle storage device according to the present invention further includes a battery for supplying electric power to the power transmission coil. By using the battery as a buffer, even if charging of many vehicles starts, the influence on the surrounding power system can be reduced.

  The present invention can provide a vehicle storage device that does not require countermeasures against energization failures and vibrations.

It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the vehicle storage apparatus which concerns on this invention. (A) is when the coil interval is wide, and (b) is when the coil interval is narrow. It is a figure explaining a power transmission coil and a power receiving coil. It is the top view and sectional drawing explaining a power transmission coil and a receiving coil. It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the vehicle storage apparatus which concerns on this invention. It is a figure explaining the elevator which is other embodiment of the vehicle storage apparatus which concerns on this invention.

  Embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. In the present specification and drawings, the same reference numerals denote the same components.

  The vehicle storage device described in the following embodiment is, for example, a three-dimensional parking lot or a three-dimensional bicycle parking lot that can supply power to a vehicle on a pallet.

(Embodiment 1)
FIG.1 and FIG.2 is the schematic explaining the vehicle storage apparatus 301 of this embodiment. The vehicle storage device 301 includes a movable pallet 10 on which a vehicle is mounted, a power receiving coil 12 disposed at a power receiving point that is a specific position of the pallet 10, and a power feeding position set in advance in a movable area of the pallet 10. When the pallet 10 is present, a power transmission coil 13 disposed at a power transmission point that is a position where power can be fed in a contactless manner toward the power receiving coil 12 is provided.

  In addition, there are a plurality of pallets 10, power transmission coils 13, and power feeding positions. A power feeding position is determined for each pallet 10, and a power receiving point and a power transmission point are provided so that power can be supplied when the pallet 10 is at the determined power feeding position. Is set.

  1 and 2 includes three pallets 10 (A pallet, B pallet, and C pallet). The vehicle storage device is not limited to three pallets. For example, the vehicle storage device 301 is a type in which all the pallets 10 are connected and move up and down at the same time. FIG. 1 shows a state in which the pallet 10 is lowered, and only the A pallet is on the ground surface, and the B pallet and the C pallet are present in a storage space provided in the ground. In this state, only the A pallet can enter and leave the vehicle. FIG. 2 shows a state where the pallet is raised and stopped at the intermediate position. The A pallet is above the ground, the B pallet is on the ground, and the C pallet is in the storage space. In this state, only the B pallet can enter and leave the vehicle. In order to load and unload a C pallet vehicle, the pallet 10 is further raised to bring the C pallet to the ground surface. In this state, the A pallet and B pallet are above the ground surface.

  The power receiving coil 12 is disposed on the wall 11 side of each pallet 10. In order to distinguish the receiving coil mounted for every pallet, it has described as receiving coil (12a, 12b, 12c). The position (power receiving point) where the power receiving coils (12a, 12b, 12c) are arranged is different for each pallet 10. For example, the power receiving coil 12 a is located on the left side of the edge facing the wall 11 of the pallet 10, the power receiving coil 12 b is located at the center of the edge facing the wall 11 of the pallet 10, and the power receiving coil 12 c is the edge facing the wall 11 of the pallet 10. It is arranged on the right side.

  The power transmission coil 13 is connected to an external power source (not shown). Moreover, each power transmission coil 13 is arrange | positioned in the position (power transmission point) of the wall 11 which can supply electric power to each receiving coil 12 in the state (FIG. 1) in which the pallet 10 was lowered most. That is, for each pallet 10, the state shown in FIG. In the state as shown in FIG. 2, since each pallet 10 is not in the power feeding position, power cannot be fed to the vehicle on the pallet 10.

  8 and 9 are diagrams illustrating the structures of the power transmission coil 13 and the power reception coil 12. The power transmission coil 13 and the power reception coil 12 in FIG. 8 are coils in which metal wires are formed in a spiral shape. The power transmission coil 13 and the power reception coil 12 in FIG. 9 may be coils having a ferrite core. FIG. 9 shows an example of the structure of the ferrite core, and shows a top view and a cross-sectional view taken along A-A ′ of the top view. The shape of the ferrite 21 in FIG. 9 is cylindrical, and a circular groove 23 is formed on one bottom surface. The power transmission coil 13 and the power reception coil 12 in FIG. 9 are coils formed by winding a metal wire 22 around the inner portion of the groove 23. For example, when alternating current is supplied from an external power source to the power transmission coil 13, an electromotive force is generated in the power reception coil 12 by electromagnetic induction. Further, the power of the external power source can be transmitted to the power receiving coil 12 by resonance between the power transmitting coil 13 and a capacitor (not shown), and the power receiving coil 12 and a capacitor (not shown). This method is also called an electromagnetic resonance method. In both the electromagnetic induction method and the electromagnetic resonance method, the electric power that can be transmitted is determined by the area of the coil surfaces facing each other between the power transmission coil 13 and the power receiving coil 12.

  Here, the magnitude | size of one of the power transmission coil 13 and the receiving coil 12 is made larger than the other. FIG. 6 is a diagram illustrating the vicinity of the power transmission coil 13 and the power reception coil 12. In FIG. 6, the size of the power transmission coil 13 is made larger than that of the power reception coil 12. By doing in this way, even when the power receiving coil 12 vibrates due to the vibration of the pallet 10, electromagnetic induction is possible and electric power can be received from the power transmitting coil 13.

  The vehicle storage device 301 may further include an interval adjustment mechanism 15 that adjusts the interval between the power receiving coil 12 and the power transmitting coil 13. FIG. 7A and FIG. 7B are diagrams illustrating the vicinity of the power transmission coil 13 and the power reception coil 12. An interval adjusting mechanism 15 is provided between the power receiving coil 12 and the pallet 10. When the pallet 10 is moved, the interval adjusting mechanism 15 widens the interval between the power receiving coil 12 and the power transmitting coil 13 as shown in FIG. 7A so that the power receiving coil 12 and the power transmitting coil 13 do not collide due to vibration during movement. To do. During power feeding from the power transmission coil 13 to the power reception coil 12, the interval adjusting mechanism 15 narrows the distance between the power reception coil 12 and the power transmission coil 13 as shown in FIG. To do. In this embodiment, the interval adjustment mechanism 15 is provided on the power receiving coil 12 side, but the interval adjustment mechanism 15 may be provided on the power transmission coil 13 side, or the interval adjustment mechanism 15 may be provided on both sides.

  The vehicle storage device 301 further includes a battery (not shown) that supplies power to the power transmission coil 13. When the vehicle storage device 301 is of a type that is supplied with power from a commercial power system, a battery is disposed between the power system and the power transmission coil 13. Even when charging of all the pallets 10 to the vehicle is started at the same time and a large amount of power is required, power is also supplied from the battery, so that a reduction in power of the power system can be prevented.

  The vehicle storage device 301 described above can be energized even if there is dust adhering or moisture, and since it is non-contact, there is no need for vibration measures to prevent breakage or contact failure. Therefore, it is possible to suppress an increase in cost of the vehicle storage device for the electric vehicle or the electric assist bicycle.

(Embodiment 2)
FIG. 3 is a schematic diagram illustrating the vehicle storage device 302 of the present embodiment. The vehicle storage device 302 has a plurality of pallets 10, power transmission coils 13, and power feeding positions, and a power receiving point and a power transmission point are set so that power can be fed regardless of the power feeding position of the pallet 10.

  3 includes eight pallets 10 (A pallet to H pallet). The vehicle storage device is not limited to eight pallets. For example, the vehicle storage device 302 has nine pallet spaces in three rows and three columns, and one space is empty. All the pallets 10 use this empty space to move up and down and right and left in a daring manner. FIG. 3 shows a state in which the space on the lower left as viewed from the wall 11 is vacant. This empty space part may be used as a vehicle entry / exit part, or a vehicle may be entered / exited from the upper three spaces using the upper row as the ground surface.

  For example, suppose that the space on the lower right of FIG. First, the vehicle storage device 302 slides the H pallet to the lower right (vehicle entry / exit location). Then, since the lower center where the H pallet is located becomes an empty space, the E pallet is lowered to the lower center. Then, since the middle center where the E pallet is located becomes an empty space, the F pallet is slid to the middle center. Furthermore, since the middle right where the F pallet is located becomes an empty space, the H pallet currently in the vehicle entry / exit location is raised to the middle right. As a result, the vehicle entry / exit location becomes empty, and the E pallet vehicle can be taken out by sliding the E pallet in the lower center to the vehicle entry / exit location.

  The power receiving coil 12 is disposed on the wall 11 side of each pallet 10. In order to distinguish the receiving coil mounted for every pallet, it has described as the receiving coil (12a-12h). The positions (power receiving points) where the power receiving coils (12 a to 12 h) are arranged are the same in all the pallets 10.

  The power transmission coil 13 is connected to an external power source (not shown). Each power transmission coil 13 is arranged at a position (power transmission point) on the wall 11 where power can be supplied to each power receiving coil 12 when the pallets 10 are arranged in 3 rows and 3 columns as shown in FIG. That is, for each pallet 10, the state shown in FIG. 3 is a preset power supply position, and power can be supplied from an external power source to the vehicle on the pallet 10 via the power transmission coil 13 and the power reception coil 12. Since each pallet 10 has the same power receiving point, each pallet moves for vehicle entry / exit and is at a different position from FIG. 3 (for example, when the A pallet is in the middle center or the G pallet is at the upper right) However, power can be supplied to the vehicle on the pallet 10.

  Here, you may further provide the management circuit (not shown) which manages whether the power transmission coil 13 is transmitting to the receiving coil 12 of which pallet 10. FIG. The management circuit can count the amount of electric power supplied to each pallet 10 and can easily charge the pallet user. The management circuit can also stop power supply to a specific pallet. Thereby, the electric power to the user who has not paid the fee can be stopped.

(Embodiment 3)
4 and 5 are schematic diagrams illustrating the vehicle storage device 303 of the present embodiment. The difference between the vehicle storage device 303 and the vehicle storage device 301 of FIGS. 1 and 2 is the shape of the power transmission coil 13. That is, the power transmission coil 13 has a shape along the locus of the power reception point that accompanies the movement of the pallet 10, and the power feeding position is continuous.

  The power transmission coil 13 is connected to an external power source (not shown). Moreover, each power transmission coil 13 is arrange | positioned in the position (power transmission point) of the wall 11 which can supply electric power to each power receiving coil 12, regardless of the position of the pallet 10. Specifically, the power transmission coil 13 is elliptical, and the long axis thereof is arranged along the locus of the power reception coil 12. That is, power can be supplied to each pallet 10 even when the pallet is moved from the state shown in FIG. 4 to the state shown in FIG. Further, power can be supplied even if the pallet is further raised from the state shown in FIG.

  In addition to the vehicle storage device 301 described in the first embodiment, the vehicle storage device 303 described above has an effect of shortening the time during which the vehicle cannot be charged and shortening the time until the vehicle is fully charged.

(Embodiment 4)
10 and 11 are schematic diagrams for explaining the vehicle storage device 304 of the present embodiment. The difference between the vehicle storage device 304 and the vehicle storage device 301 of FIGS. 1 and 2 is the number of power transmission coils 13 and the position of the power reception coil 12. Each pallet 10 has a power receiving coil 12 at the same position. In addition, there is one power transmission coil 13 on the wall 11, which has a shape along the locus of the power reception points of all the pallets 10 as the pallet 10 moves, and the power feeding position is continuous.

  The power transmission coil 13 is connected to an external power source (not shown). Moreover, the power transmission coil 13 is arrange | positioned in the position (power transmission point) of the wall 11 which can supply electric power to each power receiving coil 12, regardless of the position of the pallet 10. Specifically, the power transmission coil 13 is elliptical, and the long axis thereof is arranged along the locus of the power reception coil 12. That is, power can be supplied to each pallet 10 even when the pallet is moved from the state shown in FIG. 10, the state shown in FIG. 11, and the state shown in FIG. 10 to FIG. 11. Furthermore, power can be supplied even if the pallet is further raised from the state of FIG.

  In addition to the vehicle storage device 301 described in the first embodiment, the vehicle storage device 304 described above has an effect of shortening the time during which the vehicle cannot be charged and shortening the time until the vehicle is fully charged.

(Embodiment 5)
FIG. 12 is a schematic diagram illustrating an elevator 305 to which the vehicle storage device of the present invention is applied. The rod 17 is provided with a power receiving coil 12 at a predetermined position. Further, there is one power transmission coil 13 on the wall 11, which has a shape along the locus of the power reception point accompanying the movement of the flange 17, and the power feeding position is continuous.

  The power transmission coil 13 is connected to an external power source (not shown). The power transmission coil 13 is disposed at a position (power transmission point) on the wall 11 where power can be supplied to the power reception coil 12 regardless of the position of the rod 17. Specifically, the power transmission coil 13 is the same as the power transmission coil 13 described with reference to FIGS. 10 and 11.

  A conventional elevator has to be connected with a power supply cable for supplying power to a moving cage. Since the elevator 305 can supply power in a non-contact manner, the power distribution cable to the cage 17 can be eliminated, inspection of the power distribution cable can be omitted, and an accident due to the disconnection of the power distribution cable can be avoided.

10: Pallet 11: Walls 12, 12a, 12b,..., 12h: Power receiving coils 13, 13a, 13b,..., 13h, 13x: Power transmission coil 15: Spacing adjustment mechanism 17: 籠 21: Ferrite 22: Metal Line 23: Grooves 301 to 304: Vehicle storage device 305: Elevator

Claims (2)

A movable pallet carrying vehicles,
A power receiving coil arranged at a power receiving point which is a specific position of the pallet;
When the pallet is at a preset feeding position within a movable area of the pallet, a power transmission coil disposed at a power transmission point that is a position where power can be fed in a non-contact manner toward the power receiving coil;
A vehicle storage device comprising:
The power transmission coil is one coil having a shape along the locus of the power reception point accompanying the movement of the pallet, and the power feeding position is continuous .
The pallet is plural,
The power receiving point is a different position for each pallet,
The vehicle storage device, wherein the power transmission coil is arranged for each locus of the power reception point of the pallet. The vehicle storage device according to claim 1 , further comprising a battery that supplies power to the power transmission coil together with a commercial power system.

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