JP2013234534A - Non-contact power supply system for mechanical multistory parking garage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact power supply system for a mechanical multistory parking garage which can supply electric power to a power receptacle of a pallet even if positional deviation between a power supply contact and a power receiving contact occurs in a parking room, is easy in maintenance, and does not generate a spark between both contacts, so that a fire due to the spark does not occur in a building.SOLUTION: Since a non-contact power supply system is adopted for power supply to a power receptacle of a pallet in a parking room, even if positional deviation between a primary coil and a secondary coil occurs during, for example, electric charge to an electric motor vehicle, the positional deviation is permitted and power can be supplied when the positional deviation is in a range of a non-contact power supply region existing between both coils. The non-contact power supply system does not cause such deformation of both contacts by an impact force generated when a power supply contact in a parking room pushes a power receiving contact of a pallet and deterioration of electrical properties due to generation of friction on the contact surfaces of both contacts as in the conventional contact power supply system. As a result, periodic exchange of both contacts becomes unnecessary to facilitate maintenance, and no spark is generated between both contacts, so that the risk of occurrence of a fire due to the spark in a multistory parking garage is eliminated.

Description

  The present invention is a mechanical multistory parking contactless power supply system, more specifically, by providing a power outlet on the pallet for supplying electric power to a parked vehicle, for example, it is possible to supply electric power for charging an electric vehicle or freezing a refrigerated vehicle. The present invention relates to a mechanical multi-story parking contactless power supply system with a power outlet.

  An elevator type multilevel parking lot is known as a type of multilevel parking device. This is because the pallet hoistway is vertically formed in the interior space of the building, and a plurality of parking rooms (parking spaces) are provided in a hierarchy in parallel with the hoistway, and the pallet is placed in the hoistway using a hoisting lift. The mounted platform is raised and lowered. When the parking lot is used, the pallet on which the vehicle is mounted is moved up and down on the hoistway using a lift, and the vehicle is transported between the entry / exit floor and the selected parking room. On the other hand, on the parking floor, the vehicle is slid to the side and stored in the parking room, or on the contrary, the vehicle is taken out from the parking room to the hoistway and placed on the lifting platform.

By the way, in recent years, as part of measures against global warming, regulations on the amount of carbon dioxide emitted from engines-equipped vehicles that run on fossil fuels have become stricter. Due to this influence, an electric vehicle that does not emit CO ₂ while traveling is attracting attention today. However, in an electric vehicle, it is essential to charge a battery (capacitor). For this reason, in order to popularize electric vehicles, it is necessary to deploy a large number of charging facilities in the streets and parking areas of expressways. In response to such social demands, recently, for example, "Mechanical three-dimensional parking lot equipped with an electric vehicle charging device" in Patent Document 1 that can charge an electric vehicle that is parked has been proposed. .

The mechanical multistory parking lot of patent document 1 is used as a charging device (power source) installed on the entrance / exit floor of the building as an electric vehicle charging device, a connector that can be connected to the charging port of the electric vehicle at the end, and a power plug. Charging adapter consisting of connectable connector and cable case, power plug connected to the charging adapter, power cable, power cable reel that winds and unwinds the power cable to move the power plug vertically, charging A connector detection mechanism for detecting the position of the adapter, and a power supply mechanism including a power plug moving mechanism for moving the power plug to the position of the charging adapter.
When charging the vehicle, charging is performed by connecting the charging adapter to the charging port of the electric vehicle and connecting the power plug of the power supply mechanism connected to the charging device via the power cable to the charging adapter. Specifically, the power supply mechanism is operated, the position of the charging adapter is detected by the connector detection mechanism, the power plug is moved by the power plug moving mechanism directly above the connector based on the detection signal, and then the power cable Was pulled out of the power cable reel and a power plug was connected to the connector, and the electricity from the charging device was sent to the battery of the electric vehicle for charging.

JP 2011-117155 A

  However, in the “mechanical parking lot equipped with an electric vehicle charging device” in Patent Document 1, as an electric vehicle charging device, after connecting the charging adapter to the charging port on the entrance / exit floor, the vehicle elevator The electric vehicle is raised to a predetermined floor by the above and the electric vehicle is stored in the parking room. Next, the power supply mechanism is operated in the parking room, the charging adapter is detected by the connector detection mechanism, and the power plug is based on the detection result. A mechanical contact power feeding method is adopted in which the power plug is moved to the charging adapter by the moving mechanism, and the power supply contact (moving contact) of the power plug is pressed against the charging contact (fixed contact) of the charging adapter for connection. It was.

  For this reason, the electric vehicle charging device of Patent Document 1 does not have a function of correcting a minute positional deviation between the contacts, and even if a command to start charging is transmitted from the control unit of the charging device, this fine positional deviation. In some cases, charging was not possible. Moreover, by using the charging device for a long period of time, both contact points (both terminals) are deformed by the impact force when the power plug is pressed against the charging adapter, and the contact surfaces are worn, resulting in a decrease in electrical characteristics. And had to periodically replace the charging adapter and power plug. In addition, there is a possibility that a spark may occur at the moment when the two contacts come in contact with each other, and there is a possibility that a fire may occur in the building due to the spark at this time.

Therefore, as a result of earnest research, the inventor has found that if the non-contact power feeding method (wireless power feeding method) is adopted as the power feeding method to the vehicle in the multi-story parking lot, all the above-mentioned problems are solved. Completed the invention.
In recent years, as a kind of electric vehicle, a secondary coil is built in the bottom of the vehicle, and electric power is transmitted to the secondary coil via electromagnetic energy from the primary coil embedded in the ground of the charging facility. The electric car is known. However, conventionally, a multi-story parking lot having a charging facility for an electric vehicle of this type has not been developed. As a result of intensive studies, the inventor has found that this problem can be solved by arranging the primary coil at the bottom of the parking room, and has completed the present invention.

The present invention can supply power to the secondary coil without hindrance even when a positional deviation occurs between the primary coil and the secondary coil in the parking room, and is easy to maintain. For the purpose of providing a mechanical multi-story parking contactless power supply system that does not cause a spark between the contact for power supply and the contact for power reception like the one of the system, and does not cause a fire in the parking lot due to this Yes.
Another object of the present invention is to provide a mechanical multi-story parking contactless power supply system that can charge a non-contact charging type electric vehicle with a built-in secondary coil even in a mechanical multi-story parking lot. It is said.

  According to the first aspect of the present invention, there are provided a plurality of pallets on which a vehicle is mounted, a plurality of parking rooms provided in a hierarchical manner, in which the plurality of pallets are stored, and the pallet. It is arranged in a mechanical multistory parking lot having a pallet moving means for moving between the access floor provided and the plurality of parking rooms, and at least one of the pallets is provided with a power outlet, Non-contact power supply means for supplying power from the high-frequency power source to the power outlet is provided between the pallet provided with the power outlet and the wall of the parking room in which the pallet is stored. From the primary coil for power supply fixed to the wall of the parking room to the secondary coil for power reception fixed to the pallet provided with the power outlet and facing the primary coil. Wherein in a non-contact state by using energy in which send power from the high frequency power source is a mechanical parking garage contactless power supply system.

  According to the first aspect of the present invention, the electric vehicle passes through the entrance / exit of the entrance / exit floor, for example, the electric vehicle gets on the pallet, the charging cable attached to the electric vehicle is connected to the charging port of the electric vehicle. Connect the end to a charging outlet on the pallet. Next, by operating the pallet moving means, the pallet mounted on the electric vehicle is moved from the entrance / exit to the predetermined parking room and stored. Thereafter, when a high-frequency current from a high-frequency power source is passed through the primary coil of the parking room, the electromagnetic energy generated here is transmitted to the secondary coil via the non-contact power feeding means, and the high-frequency current flows through the secondary coil. This high-frequency current is rectified, changed to AC power as necessary, and supplied to the power outlet of the pallet. The electric power that has reached the power outlet can be led to the charging port of the electric vehicle through a charging cable, for example, and charged to the battery of the electric vehicle. The power outlet can be used not only for charging such an electric vehicle but also as a refrigeration power source for a freezing vehicle, an oxygen pump power source for a fresh fish transporter, and the like.

  In this way, in the mechanical multistory parking lot, since the non-contact power feeding method is adopted as the power feeding method from the parking room to the pallet, even if a positional deviation occurs between the primary coil and the secondary coil, If the positional deviation is within the range of a non-contact power supply area (power supplyable space) existing between both coils, power can be supplied without any problem. Moreover, as in the case of the conventional contact power supply method, the contact is deformed by the impact force when the power receiving contact (power receiving terminal) of the pallet is pressed against the power supply contact (power supplying terminal) of the parking room, There is no case where the contact surfaces are worn and the electrical characteristics are not deteriorated. As a result, it is not necessary to periodically replace both contacts (both terminals), and maintenance is facilitated. Furthermore, unlike the conventional case, no spark is generated when the two contacts are in contact with each other, and there is no risk of fire in the multilevel parking garage caused by this.

  The type of mechanical multistory parking lot is not limited. For example, an elevator that raises and lowers the whole of a plurality of parking rooms only on the basement floor, only on the ground floor, or both, such as a so-called two-stage parking lot or three-stage parking lot, or an elevator that raises or lowers a pallet with an electric lift Elevator type installed with a vehicle, vertical circulation (tower parking) type in which multiple cages in which vehicles are stored circulate in the vertical direction (or horizontal direction), pallets on the upper and lower floors from the entrance floor A plane reciprocating system that reciprocates horizontally in the horizontal direction can be employed.

The shape of the pallet is arbitrary as long as the vehicle can be mounted, but is generally rectangular in plan view.
The pallets on which the power outlets are arranged may be all pallets in the multilevel parking lot, or one or more of them.
The location of the power outlet on the pallet is arbitrary. For example, in the case of the rectangular pallet, the end in the length direction of the pallet or the end in the width direction may be used.
The shape and size of the power outlet are arbitrary. The number of power outlets formed on the pallet may be one or two or more.

  As the high frequency power source, for example, a frequency generator to which a power amplifier is added can be used. Specifically, an inverter that converts a commercial power supply of AC 100 to 400 V into a high frequency of 20 to 200 kHz can be employed. If it is less than 20 kHz, the coil outer dimension becomes large. Moreover, if it exceeds 200 kHz, a power supply device will become expensive. A preferable frequency of the high frequency power source is 25 to 100 kHz. The high-frequency power source is basically provided for each power supply coil (primary coil) provided in the parking room, and is required to allow the maximum power to be used at the power outlet of the pallet. When the electric vehicle is intended for normal charging, one with an output of 1.5 to 6 kW is required. However, in the case of a system in which a plurality of power feeding coils are collectively driven, a higher-frequency high-frequency power source is required depending on the number of power feeding coils to be driven.

As a power feeding method of the non-contact power feeding means, for example, an electromagnetic induction method in which a magnetic flux (electromagnetic energy) penetrating the primary coil is changed to generate a current in the secondary coil can be employed.
The non-contact power supply means may be provided between all the parking rooms and the pallets stored in them, or may be provided between one or two or more of the parking rooms and the pallets stored therein. .
As the primary coil, for example, a spiral winding having a planar winding shape can be adopted. As the shape of the primary coil, for example, a circular shape, an elliptical shape, an oval shape (including an oval shape), a rectangular shape, or the like can be adopted in plan view (the same applies to the secondary coil).
The size of the primary coil is not limited (the same applies to the secondary coil). The installation position of the primary coil is not limited as long as it is a parking room. For example, the bottom (lower part), the upper part thereof, or the side part thereof may be used.

One or a plurality of primary coils may be installed. In the case of a plurality, the primary coils are arranged in parallel apart from the parking room.
The secondary coil preferably has the same shape as the primary coil, but may have a different shape. Further, the size of the secondary coil and the number of coil turns may be the same as or different from the primary coil.
The installation position of the secondary coil is an arbitrary position on the pallet that can transmit electromagnetic energy to and from the primary coil. Specifically, it may be the lower surface or the upper surface of the pallet bottom plate or the inner surface or the outer surface of the pallet wheel guide side plate.
One or a plurality of secondary coils may be installed. In the case of a plurality of secondary coils, the secondary coils are separated from the pallet and arranged in parallel in accordance with the corresponding primary coils.

  According to a second aspect of the present invention, the vehicle is an electric vehicle, and the battery of the electric vehicle is charged via the power outlet with AC power received by the secondary coil or DC power converted from the AC power. It is a mechanical multistory parking lot non-contact electric power feeding system of Claim 1.

  According to a third aspect of the present invention, the pallet has a rectangular shape whose length direction is the forward / backward direction of the vehicle, and the primary coil is disposed at the bottom of the parking chamber or at the side of the parking chamber, The secondary coil is provided on the bottom plate of the pallet so as to face the primary coil immediately above the primary coil disposed at the bottom of the parking chamber, or disposed on the side of the parking chamber. 3. The mechanical multistory parking lot according to claim 1, wherein the mechanical multistory parking lot is provided on a wheel guide side plate that is erected on one side in the width direction of the pallet so as to face the primary coil that has been made. It is a contact power supply system.

  According to the third aspect of the present invention, when the primary coil is disposed at the bottom of the parking chamber and the secondary coil is disposed at the bottom plate of the pallet, the primary coil and the pallet wheel are disposed at the side of the parking chamber described above. The storage space for the secondary coil can be increased as compared with the case where the secondary coil is disposed on the guide side plate. Therefore, for example, even when multiple sets of primary and secondary coils made of small coils are not used, a single set of high output (large diameter) primary and secondary coils is used and multiple sets of small coils are used. It is possible to perform non-contact power supply with the same or higher power. In addition, when the primary coil is arranged on the side of the parking room and the secondary coil is provided on the wheel guide side plate of the pallet, the primary coil is placed in the parking room using the side walls and pillars of the multilevel parking lot. Can be easily attached to the side of

The “bottom part of the parking room” refers to an area below the part of the parking room where the pallet is stored.
The “side of the parking room” refers to an area of the parking room that is lateral to the part where the pallet is stored. Specifically, it is a side wall of a parking room.
The secondary coil may be provided on the bottom surface of the bottom plate or on the top surface of the bottom plate. Among these, when the secondary coil is provided on the upper surface of the bottom plate, a window portion is formed in the portion of the bottom plate facing the secondary coil so as not to prevent transmission of electromagnetic energy generated by the primary coil to the secondary coil. Alternatively, it is necessary to provide a nonconductive material (such as plastic) that is not induction-heated.

  According to a fourth aspect of the present invention, there are provided a plurality of pallets on which a vehicle including an electric vehicle in which a secondary coil connected to a battery is built in a bottom portion is mounted, and the pallets are stored in a hierarchy. A plurality of parking rooms, and a pallet moving means for moving the pallet between the plurality of parking rooms and an entrance / exit floor provided with an entrance / exit for a vehicle including the electric vehicle. A high-frequency power source is disposed in a parking lot, facing at least one of the plurality of parking rooms from the lower side of the secondary coil of the electric vehicle, and using electromagnetic energy in a non-contact state with the secondary coil. It is a mechanical multistory parking lot non-contact electric power feeding system which arranged the primary coil which sends electric power of.

According to the fourth aspect of the present invention, the electric vehicle enters the pallet through the entrance / exit of the entrance / exit floor, and then the pallet moving means is operated, so that the pallet mounted on the electric vehicle is It moves to the parking room which has a next coil, and stores an electric vehicle with the pallet in this parking room. Here, if the primary coil disposed below the pallet is energized from the high-frequency power source through the power supply cable, the electromagnetic energy generated here is transmitted to the secondary coil built in the bottom of the electric vehicle. The electric current flows through the battery and the battery of the electric vehicle is charged.
As described above, since the primary coil is arranged at the bottom of at least one of the plurality of parking rooms arranged in the multi-story parking lot, charging to the electric vehicle of the non-contact charging method in which the secondary coil is built into the bottom. Can also be performed in a mechanical multilevel parking lot.

The electric vehicle referred to here is one in which a secondary coil for battery charging is provided on the bottom (chassis).
The parking room in which the primary coil is installed may be all the parking rooms in the multi-story parking lot or one or more parking rooms.
You may fix a primary coil to the fixing member only for installation of a primary coil other than the storage shelf for pallets arrange | positioned at the bottom part of a parking chamber. A part of the fixing member is fixed to a wall or a frame of the multistory parking lot.

  When the primary coil is disposed below the pallet, for example, when the primary coil is provided on the storage shelf, electromagnetic energy is applied to a portion of the pallet that faces the secondary coil of the electric vehicle from below. It is preferable to provide a magnetic opening that does not hinder the transmission of light. In this case, for example, a window portion in which a part of the bottom plate of the pallet is cut out or a plate material made of a non-conductive material that closes the window portion can be adopted as the magnetic opening. As a material of the non-conductive material, for example, various plastics, wood boards, etc. can be adopted. Moreover, you may comprise the whole pallet with a nonelectroconductive material. In addition, the primary coil may be fixed to an insertion member whose base is fixed to the forming wall of the parking room and inserted between the top surface of the pallet and the bottom surface of the electric vehicle. The insertion member needs to be arranged at a position where it does not collide with the pallet or the electric vehicle when the pallet is loaded into and out of the parking room. Further, the insertion member may be provided so as to be freely inserted and removed by an advance / retreat mechanism using, for example, an electric motor as a drive source.

  According to the first aspect of the present invention, since a non-contact power feeding method is adopted as a power feeding method for the automobile stored in the parking room together with the pallet in the mechanical multilevel parking lot, the primary coil and the secondary coil Even if a misalignment occurs between the two coils, if the misalignment is within the range of a non-contact power feeding region (power feedable space) existing between both coils, power can be supplied without any problem. . Moreover, as in the case of the conventional contact power supply method, the contact for power supply (power supply terminal) is applied by the impact force at the time of pressing the power reception contact (power reception terminal) of the pallet against the power supply contact (power supply terminal) of the parking room. ) And the power receiving contact (power receiving terminal) are not deformed, and the electrical characteristics are not deteriorated due to wear on the contact surfaces. As a result, it is not necessary to periodically replace both contacts (both terminals), and maintenance is facilitated. Furthermore, unlike the conventional case, no spark is generated when the two contacts are in contact with each other, and there is no risk of fire in the multilevel parking garage caused by this.

  In particular, according to the third aspect of the present invention, when the primary coil is arranged at the bottom of the parking room and the secondary coil is provided on the bottom plate of the pallet, a large storage space for the secondary coil can be secured. The transmission power can be increased by increasing the diameter of the secondary coil. In addition, when the primary coil is arranged on the side of the parking room and the secondary coil is provided on the wheel guide side plate of the pallet, the primary coil is placed in the parking room using the side walls and pillars of the multilevel parking lot. Can be easily attached to the side of

  According to the fourth aspect of the present invention, in a mechanical multilevel parking lot with a charging device for an electric vehicle of a type that obtains electric power from a secondary coil at the bottom of the vehicle, at the bottom of at least one of a plurality of parking rooms. Since the primary coil is disposed, charging to the electric vehicle of the non-contact charging method in which the secondary coil is built into the bottom can be performed even in a mechanical multilevel parking lot.

It is a longitudinal cross-sectional view of the mechanical multistory parking lot to which the mechanical multistory parking lot non-contact electric power feeding system which concerns on Example 1 of this invention was applied. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view including a partial cross-sectional view of a pallet on which an electric vehicle is mounted in a mechanical multilevel parking lot to which a mechanical multilevel parking lot contactless power feeding system according to Embodiment 1 of the present invention is applied. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the pallet arrange | positioned at the mechanical multistory parking lot where the mechanical multistory parking lot non-contact electric power feeding system which concerns on Example 1 of this invention was applied. It is a rear view which shows the electric vehicle currently charged in the parking room of the mechanical multistory parking lot where the mechanical multistory parking lot non-contact electric power feeding system which concerns on Example 1 of this invention was applied. It is a top view which shows schematic structure of the charging device of the mechanical multistory parking lot where the mechanical multistory parking lot non-contact electric power feeding system which concerns on Example 1 of this invention was applied. It is a top view which shows schematic structure of another charging device of the mechanical multistory parking lot to which the mechanical multistory parking lot non-contact electric power feeding system which concerns on Example 1 of this invention was applied. It is a rear view which shows schematic structure of the charging device of the mechanical multistory parking lot to which the mechanical multistory parking lot non-contact electric power feeding system which concerns on Example 2 of this invention was applied. It is a rear view which shows schematic structure of the charging device of the mechanical multistory parking lot where the mechanical multistory parking lot non-contact electric power feeding system which concerns on Example 3 of this invention was applied.

  Examples of the present invention will be specifically described below. Here, a mechanical multistory parking lot equipped with an elevator for raising and lowering a pallet is taken as an example. However, it is not limited to this.

  In FIG. 1, reference numeral 10 denotes a mechanical multistory parking lot (hereinafter, multistory parking lot) to which a mechanical multistory parking lot contactless power feeding system according to Embodiment 1 of the present invention is applied. Is an elevator type multi-story parking facility that can accommodate a plurality of vehicles 12 including a building 14 in which an entrance / exit 13 of the vehicle 12 is opened on the ground. A turntable 15 for changing the direction of the vehicle 12 is installed on the floor of the ground floor of the building 14. The turntable 15 has a configuration in which a turning plate 17 and a turning drive unit 18 are provided in a concave pit 16 formed on the floor surface of the ground floor.

  As shown in FIGS. 1 to 3, a vertical hoistway 19 is formed in the center of the building 14, and an elevator hoisting base 20 is provided in the hoistway 20 so as to be movable up and down. For example, the elevator 20 is suspended at four corners by a plurality of wire ropes 21 extending downward from a winch (pallet moving means) 100 provided at the upper part of the building 14, and the elevator 20 is driven by driving the winch in this state. The hoistway 19 is moved up and down. A pallet 22 on which the vehicle 12 is mounted or an empty pallet 22 is placed on the lifting platform 20. The pallet 22 has a general W-shaped cross-sectional structure obtained by press-molding a rectangular steel plate in plan view, and the length direction of the pallet 22 is the forward / backward direction of the vehicle 12. The bottom plate 23 of the pallet 22 has a central guide protrusion 23a formed in a step shape at the center in the width direction, and a pair of substantially angle-shaped wheel guide side plates 24 erected at both ends in the width direction. Are formed with two wheel guide recesses 23 b for guiding the wheels of the vehicle 12 along the length direction of the pallet 22.

  In the interior space of the building 14, on both sides of the hoistway 19, parking rooms 26 in which the vehicle 12 is stored are arranged at a predetermined pitch in the vertical direction. A storage shelf 27 for the pallet 22 is disposed at the bottom of each parking chamber 26. Further, when the heights of the upper surfaces of the lifting platform 20 and the storage shelf 27 coincide with each other, the empty pallet 22 or the pallet 22 on which the vehicle 12 is mounted is moved from the lifting platform 20 to the parking room 26 or An automatic delivery mechanism (pallet moving means) (not shown) that can smoothly deliver from the parking room 26 to the lifting platform 20 is provided.

When the vehicle 12 enters the multi-story parking lot 10, the pallet 22 of the parking room 26 in which the vehicle 12 is not stored is installed on the turning plate 17 of the turntable 15 by the lifting platform 20. The vehicle 12 stops from the entrance / exit 13 on the pallet 22 installed on the turntable 15, and then the turntable 15 turns to change the direction of the vehicle 12 along the direction of the parking chamber 26. . Next, the pallet 22 is conveyed upward by the lifting platform 20, aligned at the height of the parking chamber 26 in which the vehicle 12 is not stored, and slid from the floor surface of the lifting platform 20 to the storage shelf 27 of the parking chamber 26. Moved. Thereby, the vehicle 12 is stored in the parking room 26 together with the pallet 22.
At the time of delivery, the elevator 20 stops according to the height of the parking room 26 in which the vehicle 12 to be delivered is stored, and the vehicle 12 stored in the parking room 26 is transferred to the elevator 20 together with the pallet 22. The elevator 20 descends to the turntable 15 to place the pallet 22 and the vehicle 12. The vehicle 12 is turned by the turntable 15 so as to face the loading / unloading port 13, and is then discharged.
In addition to the general vehicle 12 that travels with the power of the engine, an electric vehicle (including a plug-in hybrid vehicle) 11 that incorporates a battery 28 that travels with the power of the electric motor may board the pallet 22. Therefore, after storing the electric vehicle 11 in the parking room 26, the multi-story parking lot 10 is charged so that the battery 28 can be charged from the charging port 29 provided on one side of the electric vehicle 11 during parking. A device 30 is provided.

Hereinafter, the charging device 30 will be described in detail with reference to FIGS.
As shown in FIGS. 1 to 4, the charging device 30 supplies power from the high-frequency power source 31 for charging the battery 28 of the electric vehicle 11 stored in the parking room 26 and the high-frequency power source 31 to the parking room 26. A pair of left and right power transmission units 32 that are supplied via a cable 37 and a pair of left and right power sources that are provided on the pallet 22 and that transmit power from the power transmission unit 32 for power supply to, for example, a charging port 29 of the electric vehicle 11 via a charging cable 41. A power outlet 54, a power transmission unit 32 for power feeding, and a non-contact power feeding means 34 for connecting one power outlet 54 in a non-contact state are provided.
The high frequency power supply 31 is installed on one side of the first floor of the multi-story parking lot 10 (right side in FIG. 1) and on the second and fifth floors of the other side of the multi-story parking lot 10 (left side in FIG. 1), and 100V or A commercial power source of 200V is rectified to direct current by an inverter and converted to a high frequency of 25 kHz.

Next, the non-contact power feeding means 34 will be described in detail with reference to FIGS.
As shown in FIGS. 1 to 5, the non-contact power feeding means 34 is located on the second floor and the fifth floor of the one side wall of the building 14, the position corresponding to the bottom of each parking chamber 26, and the other side wall of the building 14. A plurality of power feeders 38 fixed to positions corresponding to the bottoms of the respective parking chambers 26 and storing the primary coils 46, and a plurality of fixed respectively to one wheel guiding side plate 24 of the corresponding pallet 22 And a power receiver 70. In the parking room 26 in which the non-contact power feeding means 34 is disposed, the power feeder 38 and the power receiver 70 face each other so as to maintain a constant interval.
The power feeder 38 is fixed to a portion of the bottom of the side wall of the parking chamber 26 facing the one wheel guiding side plate 24 of the pallet 22. A corresponding high frequency power supply 31 is connected to the primary coil 46 accommodated in the power feeder 38.

As shown in FIGS. 3 and 4, the power receiver 70 is provided on one wheel guiding side plate 24 of the pallet 22 so as to be separated from the power feeder 38 by 20 to 40 mm. When the pallet 22 is stored in the parking chamber 26, the power receiver 70 is disposed at a position facing the power feeder 38 on one of the wheel guiding side plates 24 (that is, the position directly beside it).
As shown in FIG. 5, the power receiver 70 includes a secondary coil 44 that is disposed opposite to the primary coil 46 and magnetically coupled to the primary coil 46, and a rectifier that rectifies the current obtained from the secondary coil 44. 52 and an inverter 53 that is changed to 50 Hz or 60 Hz according to the corresponding frequency of the electric vehicle 11, and a power outlet 54 that is an outlet for electricity is connected to the inverter 53.
As shown in FIG. 5, like the primary coil 46, the secondary coil 44 has a structure that is spirally wound in a plane with an air core. As shown in FIG. 6, when the power outlet 54 is used for direct current (for example, when the electric vehicle can be charged with direct current in the future), the inverter 53 is omitted and the cost of the charging device 30 is reduced. And compactness may be achieved.

Next, the usage method of the charging device 30 is demonstrated with reference to FIGS.
As shown in FIGS. 1 to 3, when the electric vehicle 11 enters the multi-story parking lot 10, the electric vehicle 11 stops on the pallet 22 installed on the turntable 15 from the loading / unloading port 13. At this time, the electric vehicle 11 is mounted on the pallet 22 at a specific position in the parking chamber 26, that is, at a position where the wheel 51 hits the car stop 22 a. Thereafter, the plug 41 a of the charging cable 41 is connected to the power outlet 54 of the pallet 22.

Next, in this state, the turntable 15 is turned, and the direction of the electric vehicle 11 is changed so as to follow the direction of the parking chamber 26. Thereafter, the lifting platform 20 is lifted by the winch 100, the pallet 22 is conveyed upward, the position is adjusted at the height of the parking chamber 26 in which the electric vehicle 11 is not stored, and the parking chamber 26 is stored from the floor surface of the lifting platform 20. Slide to shelf 27. At this time, the pallet 22 is stored in the parking chamber 26 so that the power feeder 38 and the power receiver 70 face each other in a non-contact state.
In this state, high-frequency current flows through the primary coil 46 by supplying power from the high-frequency power supply 31 connected to a commercial power supply (50 Hz or 60 Hz) of 100 V to the power feeder 38. As a result, the magnetic flux passing through the primary coil 46 changes, and a high-frequency current is induced in the secondary coil 44 by the magnetic flux from the primary coil 46. Thereafter, the induced high-frequency current is rectified to a direct current of 150 to 250 V by the rectifier 52 and then converted to a desired 50 Hz or 60 Hz by the inverter 53, and sequentially passes through the charging outlet 54, the charging cable 41, and the charging connector 40, Electric power of AC 200V having a predetermined frequency is supplied from the charging port 29 of the electric vehicle 11 to the electric vehicle, and the battery 28 is automatically charged by the in-vehicle charge controller.

  As described above, in the mechanical multilevel parking garage 10, the non-contact power feeding method is adopted as the power feeding method to the electric vehicle 11 having the charging port 29. Even if a positional deviation occurs between the secondary coil 44 and the positional deviation is within the range of a non-contact power feeding region existing between the coils 44 and 46, the power is allowed without any problem. Can do. Moreover, as in the case of the conventional contact power supply method, the contact for power supply (power supply terminal) is applied by the impact force at the time of pressing the power reception contact (power reception terminal) of the pallet against the power supply contact (power supply terminal) of the parking room. ) And the power receiving contact (power receiving terminal) are not deformed, and the electrical characteristics are not deteriorated due to wear on the contact surfaces. As a result, it is not necessary to periodically replace both contacts (both terminals), and maintenance is facilitated. Furthermore, unlike the conventional case, no spark is generated when the two contacts are in contact with each other, and there is no risk of fire in the multi-story parking lot 10 caused by this.

Next, a mechanical multilevel parking lot non-contact power feeding system according to Embodiment 2 of the present invention will be described with reference to FIG.
As shown in FIG. 7, the feature of the multi-story parking lot 10 </ b> A according to the second embodiment is that the power feeder 38 is fixed to the central portion of the upper surface of the storage shelf 27 of each parking room 26, and the power receiver 70 and the power outlet 54. Is connected by a connection cable 71 wired on the back surface of the pallet 22.
Therefore, by storing the pallet 22 on which the electric vehicle 11 is mounted in the parking chamber 26 at a position where the wheel 51 hits the car stop 22a, the power feeder 38 and the power receiver 70 face each other vertically. In this state, power is transmitted from the primary coil 46 to the secondary coil 44 of the power receiver 70 by the non-contact power feeding method by flowing a high frequency current from the high frequency power supply 31 to the power feeder 38 in the same manner as in the first embodiment. The battery 28 of the electric vehicle 11 is charged.

As described above, the primary coil 46 is arranged at the center of the upper surface of the storage shelf 27 of the parking room 26 and the secondary coil 44 is arranged at the center of the rear surface of the pallet 22, so that a large-diameter coil can be used and power is supplied. Power can be increased.
Other configurations, operations, and effects are in a range that can be inferred from the first embodiment, and thus description thereof is omitted.

Next, a mechanical multilevel parking lot non-contact power feeding system according to Embodiment 3 of the present invention will be described with reference to FIG.
As shown in FIG. 8, the feature of the multistory parking lot 10B according to the third embodiment is that a non-contact power feeding system is used to obtain power from the secondary coil 44 built in the center of the bottom (chassis) of the vehicle 12. The electric vehicle 11 is characterized in that it can be charged while being stored in the parking room 26.
Specifically, the power feeder 38 is fixed to the central portion of the upper surface of the storage shelf 27 of each parking chamber 26, and has the same diameter as that of the primary coil 46 at the central portion of the back surface of the central guide convex portion 23 a of the bottom plate 23 of the pallet 22. The circular window 61 is formed, and a plastic disk 62 is fitted into the circular window 61.

At the time of warehousing, the pallet 22 on which the electric vehicle 11 is mounted is stored in the parking room 26 at the position where the wheel 51 is applied to the vehicle stop 22a, and in this state, the high frequency power supply 31 supplies a high frequency to the power feeder 38 as in the first embodiment. Apply current. At this time, the primary coil 46 and the secondary coil 44 are overlapped in the vertical direction. In this state, when a current is passed from the high-frequency power source 31 to the primary coil 46 through the power transmission unit 32, the magnetic flux passing through the primary coil 46 is transmitted to the secondary coil 44, and the current flows to the secondary coil 44 to be electrically The battery 28 of the automobile 11 is charged.
Other configurations, operations, and effects are in a range that can be estimated from the first embodiment and the second embodiment, and thus description thereof is omitted.

  The present invention can be applied as it is as a household charging facility when an electric vehicle is adapted to contactless charging in the future.

10, 10A, 10B Mechanical multilevel parking,
11 Electric car,
12 vehicles,
13 Entrance / exit,
22 palettes,
26 Parking room,
28 battery,
31 high frequency power supply,
34 Non-contact power supply means,
44 secondary coil,
46 Primary coil,
100 winches (pallet moving means).

Claims (4)

A plurality of pallets on which a vehicle is mounted; a plurality of parking rooms provided in a hierarchical manner; and a plurality of parking rooms in which the plurality of pallets are stored; It is deployed in a mechanical multistory parking lot having pallet moving means for moving between the parking rooms,
A power outlet is provided in at least one of the plurality of pallets;
Non-contact power supply means for supplying power from a high frequency power source to the power outlet is provided between the pallet provided with the power outlet and the wall of the parking room in which the pallet is stored.
The non-contact power supply means is configured such that the power supply primary coil fixed to the wall of the parking room is fixed to the pallet provided with the power outlet and the power receiving secondary coil is opposed to the primary coil. A mechanical multi-story parking contactless power supply system that uses electromagnetic energy to send electric power from the high-frequency power source in a non-contact state. The vehicle is an electric vehicle,
The mechanical multilevel parking lot non-contact power feeding system according to claim 1, wherein AC power received by the secondary coil or DC power converted from the power is charged to the battery of the electric vehicle via the power outlet. . The pallet has a rectangular shape whose length direction is the forward and backward direction of the vehicle,
The primary coil is disposed at the bottom of the parking room or at the side of the parking room,
The secondary coil is provided on the bottom plate of the pallet so as to face the primary coil immediately above the primary coil disposed at the bottom of the parking chamber, or disposed on the side of the parking chamber. 3. The mechanical multistory parking lot according to claim 1, wherein the mechanical multistory parking lot is provided on a wheel guide side plate that is erected on one side in the width direction of the pallet so as to face the primary coil that has been made. Contact power supply system. A plurality of pallets on which a vehicle including an electric vehicle having a secondary coil connected to a battery built in at the bottom is mounted;
A plurality of parking rooms provided in a hierarchy and storing the plurality of pallets;
Between the entrance / exit floor where the entrance / exit of the vehicle including the electric vehicle is provided and the plurality of parking rooms, it is deployed in a mechanical multistory parking lot having a pallet moving means for moving the pallet,
Sending electric power from a high-frequency power source to at least one of the plurality of parking rooms facing the secondary coil of the electric vehicle from below and using electromagnetic energy in a non-contact state to the secondary coil 1 A mechanical multi-story parking contactless power supply system with a secondary coil.

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