Pallet for electric vehicle and mechanical parking device using same

Abstract

The present invention is provided with a socket assembly (20) which has a rectangular shape in plan view, has a flat upper surface, and is embedded in a vehicle mounting surface (12) on which an electric vehicle (EV) is mounted. The socket assembly (20) is provided with a charging socket (22), a socket container (24) and a container upper cover (26). The upper part of the socket container (24) is open, and the socket container (24) is embedded in a vehicle mounting surface and accommodates the charging socket (22) therein. The container upper cover (26) fixes the outer peripheral portion to the vehicle mounting surface and covers the upper surface of the socket container. The container upper cover (26) has an access opening (27) on the upper surface thereof, the access opening (27) being accessible to the charging socket (22). The access opening (27) allows a charging plug (6) that supplies power to the electric vehicle (EV) to pass therethrough and is set to be smaller than the tire width of the vehicle (V).

Description

Technical Field

[0001] The present invention relates to a pallet for an electric vehicle capable of supplying power to an electric vehicle while the vehicle is parked, and a mechanical parking device using the pallet for the electric vehicle. Background Art

[0002] It is expected that electric vehicles (such as electric cars) will spread rapidly, and with their spread, it is predicted that there will be a shortage of charging stations for electric vehicles. Therefore, it is desired to supply power to the electric vehicle while it is parked in a mechanical parking system for charging. In order to meet this demand, it has been proposed to provide a charging socket for supplying power to the electric vehicle on a tray on which the electric vehicle is placed (for example, Patent Documents 1 and 2).

[0003] The "parking device pallet" disclosed in Patent Document 1 comprises a pallet main structure having a generally rectangular shape when viewed from above; vehicle-side relay terminals, a terminal support structure, a guide member, and a relay device. The vehicle-side relay terminals, the terminal support structure, and the guide member are disposed on the upper surface of the pallet main structure along a specific long side, i.e., a long side.

[0004] Patent Document 2 provides multiple power supply units along the front and rear edges and left and right edges of a pallet, surrounding an electric vehicle parked therein when viewed from above. The power supply units comprise a bottomed, box-shaped storage chamber that opens onto the pallet's upper surface; a lid that opens and closes the upper opening; and a charging cable that is housed within the chamber and connected to the charging connector of the electric vehicle. When closed, the lid forms a continuous, level surface relative to the pallet's upper surface and possesses sufficient strength to withstand the weight of the electric vehicle. Prior art literature Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2014-70472 Patent Document 2: Japanese Patent Application Laid-Open No. 2011-231546 Summary of the Invention Problems to be solved by the invention

[0006] In Patent Document 1, the vehicle-side relay terminals, terminal support structures, and guide components (hereinafter referred to as "relay terminal structures") are arranged on the upper surface along the long sides of the pallet main structure, i.e., the specific long sides, so the vehicle needs to get on and off the pallet avoiding the relay terminal structures. Therefore, in the case of a pallet having a rectangular shape and a substantially flat upper surface when viewed from above (hereinafter referred to as a "flat pallet"), the width of the vehicle that can be parked needs to be set narrower than that of a vehicle that is not an electric vehicle (hereinafter referred to as a "non-electric vehicle"). Furthermore, since the relay terminal structures protrude from the upper surface of the width end portions of the flat tray, it is difficult for both electric and non-electric vehicles to perform driving operations when getting on and off the tray.

[0007] In Patent Document 2, the cover member forms a continuous flat surface with no height difference relative to the upper surface of the tray when closed, and has strength enough to bear the weight of the electric vehicle. Therefore, it does not interfere with the cover member when closed and can be easily moved up and down the tray. However, since the power supply unit is provided to surround the parked electric vehicle, the parking width of the electric vehicle needs to be narrower than that of a non-electric vehicle in order to avoid interference with the lid member that opens upward. Furthermore, if the lid member is forgotten to be closed, it may interfere with the vehicle during the vehicle's movement up or down, thereby damaging the vehicle, tires, and lid member. Furthermore, if, for example, an automatic closing mechanism is provided as a countermeasure against forgetting to close the lid, the number of parts increases, leading to increased costs and the possibility of causing failures.

[0008] The present invention was created to address the aforementioned issues. Specifically, the present invention aims to provide a pallet for electric vehicles, which facilitates the maneuvering of vehicles onto and off the flat pallet and allows the vehicle width of electric vehicles to be set to the same as that of non-electric vehicles, and a mechanical parking system using the pallet. Solutions to Problems

[0009] According to the present invention, there is provided a pallet for an electric vehicle, comprising a socket assembly having a rectangular shape in a plan view, a substantially flat upper surface, and being embedded in a vehicle mounting surface on which the electric vehicle is mounted. The aforementioned socket assembly has: A charging socket, which is used to charge the aforementioned electric vehicle; a socket container with an open top, which is embedded in the vehicle mounting surface and accommodates the charging socket; and The container cover has its outer periphery fixed to the vehicle mounting surface and covers the upper surface of the socket container. The total height of the container cover is lower than the lowest ground clearance of the vehicle, and the container cover is constructed in such a way that the tires of the vehicle can pass over it. The container cover also has an access opening on its upper surface that can be connected to the charging socket. The access opening is configured to allow passage of a charging plug connected to the charging socket and supplying power to the electric vehicle via a charging cable, and is configured to be smaller than a tire width of the vehicle. Effects of the Invention

[0010] According to the configuration of the present invention, the outer peripheral portion of the container cover is fixed to the vehicle mounting surface, and the container cover is configured to cover the upper surface of the socket container that accommodates the charging socket. The total height of the container cover is set to be lower than the lowest ground clearance of vehicles (electric vehicles and non-electric vehicles), so the lower surface of the vehicle cannot interfere with the container cover, and the pallet can be put on and off between the tires of the vehicle across the container cover.

[0011] Furthermore, the container cover is configured so that the tire can pass thereon, so even if the tire passes over the container cover, the vehicle can still get on and off the pallet. Therefore, the driving operation when the vehicle is moved up and down the flat tray is easy for both the electric vehicle and the non-electric vehicle.

[0012] The container cover also has an access opening on its upper surface that allows access to the charging inlet. The access opening is configured to allow passage of a charging plug that is connected to the charging inlet and supplies power to the electric vehicle via a charging cable. Thus, by connecting the charging plug to the charging inlet through the access opening, power can be supplied to the electric vehicle.

[0013] Furthermore, the access opening is set to be smaller than the width of the tire of the vehicle. Therefore, even if the tire passes over the access opening, the tire can pass through the access opening without getting caught in the access opening. Therefore, both electric vehicles and non-electric vehicles can be parked freely on the flat tray without opening or closing the lid, so the vehicle width of the electric vehicle that can be parked can be set to the same as that of the non-electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A This is a plan view of a vehicle entering a parking space at an access level of a mechanical parking system equipped with a pallet for an electric vehicle according to the present invention. Figure 1B This is a plan view of a vehicle being unloaded from a loading and unloading layer of a mechanical parking system equipped with a pallet for an electric vehicle according to the present invention. Figure 2A This is an overall plan view of the electric vehicle tray of the present invention. Figure 2B This is an overall side view of the electric vehicle tray of the present invention. Figure 3A It is a top view of the first embodiment of the socket assembly. Figure 3B yes Figure 3A BB direction view. Figure 4The second embodiment of the socket assembly Figure 3B Same cross-section. Figure 5A This is the second configuration example of the socket component. Figure 5B This is the third configuration example of the socket component. Figure 6A This is the fourth configuration example of the socket component. Figure 6B This is the fifth configuration example of the socket component. DETAILED DESCRIPTION

[0015] Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. Components common to the various drawings are denoted by the same reference numerals, and overlapping descriptions are omitted.

[0016] In the present invention, the vehicle V means an electric vehicle EV and a non-electric vehicle. An electric vehicle (EV) is a vehicle equipped with an onboard battery as a power source for traveling, and includes, for example, a battery electric vehicle (BEV), a hybrid electric vehicle (HEV), a plug-in hybrid vehicle, etc. A non-electric vehicle includes, for example, a gasoline vehicle or a diesel vehicle. Hereinafter, the electric vehicle EV and the non-electric vehicle will be referred to simply as “vehicle V” unless otherwise required.

[0017] Figure 1A and Figure 1B It is a plan view of the loading and unloading floor FL of the mechanical parking system 100 including the electric vehicle pallet 10 according to the present invention. In this example, the mechanical parking system 100 is a horizontal circulation type mechanical parking system having a loading and unloading room (hereinafter referred to as a loading and unloading berth B) for loading and unloading vehicles V. In addition, in the present invention, the loading and unloading berth B is not essential, and the mechanical parking system 100 may be a mechanical parking system other than the horizontal circulation system. In addition, the mechanical parking system 100 may also have other pallets as long as it has the electric vehicle pallet 10 of the present invention.

[0018] Figure 1A When the vehicle V enters the garage, Figure 1B The figure shows a vehicle V leaving the garage. In the figure, 1 is a mirror, 2 is a door, 3 is a passage for people, and 10 is a tray for electric vehicles. Hereinafter, the electric vehicle pallet 10 will be referred to simply as “the pallet 10 ” except when necessary.

[0019] like Figure 1A and Figure 1BAs shown, in this example, the vehicle V moves forward and drives onto the pallet 10 at the entry and exit berth B when entering the warehouse, and moves forward and exits from the pallet 10 when leaving the warehouse. This configuration is called "front entry / forward exit". Furthermore, in order to realize front entry / forward exit, the pallet 10 on which the vehicle V is placed is horizontally turned in a parking space (not shown) to reverse its front-to-rear direction after entering the garage and before exiting the garage. By this front entry / forward exit, the vehicle V, whether it is an electric vehicle EV or a non-electric vehicle, can move forward and get on and off the pallet 10 . Furthermore, the present invention is not limited to front entry / front exit, and may also be front entry / rear exit.

[0020] like Figure 1A As shown, when a vehicle V is parked, a large mirror 1 is provided in front of the vehicle V, and the driver drives onto the tray 10 while observing his own vehicle V reflected in the mirror 1 . With this configuration, the driving operation of the vehicle V when parking can be easily performed.

[0021] Furthermore, when the vehicle V is parked, a pedestrian passage 3 is provided on three sides (left, right, and rear) of the vehicle V, excluding the front. The pedestrian passage 3 is provided to allow people to safely enter and exit the vehicle V when loading or unloading passengers or cargo. Furthermore, when the vehicle V is parked, the mirror 1 is provided in front of the vehicle V, so the pedestrian passage 3 is not provided. The mirror 1 and the pedestrian passage 3 are required to be installed according to the certification standards of the mechanical parking system 100. However, the present invention is not limited thereto, and the mechanical parking system 100 may be provided without the mirror 1 or the pedestrian passage 3.

[0022] Figure 2A This is an overall top view of the electric vehicle tray 10 of the present invention. Figure 2B This is an overall side view of the tray 10 as viewed from the width direction.

[0023] like Figure 2B As shown, the electric vehicle tray 10 has a vehicle mounting surface 12 on which the electric vehicle EV is mounted. The vehicle mounting surface 12 has a rectangular shape in a plan view, and its upper surface is formed to be substantially flat. Furthermore, the lower surface of the pallet 10 is shown as being flat in this example, but rails, wheels, etc. may also be provided.

[0024] exist Figure 2A and Figure 2B In the embodiment of the present invention, the electric vehicle tray 10 includes a socket assembly 20 embedded in the vehicle mounting surface 12 .

[0025] (First embodiment of the socket assembly 20) Figure 3A is a top view of the first embodiment of the socket assembly 20, Figure 3B yes Figure 3A BB direction view. exist Figure 3B In the embodiment, the socket assembly 20 includes a charging socket 22 , a socket container 24 and a container cover 26 .

[0026] The charging inlet 22 is a inlet for charging an electric vehicle EV. The charging inlet 22 is, for example, a grounded inlet for EV / PHEV charging commercially available from Panasonic Corporation. This inlet is rated at 20A-250V and is compatible with a 200V EV / PHEV charging plug. In this case, the main body dimensions of the charging inlet 22 are 80 mm x 80 mm in front and approximately 33 mm in thickness. The charging inlet 22 also has a protective cover 22 a that covers the charging terminal surface to provide dust and water resistance and is openable and closable below the container cover 26 . Note that the charging inlet 22 is not limited to this example, and may be another charging inlet.

[0027] The socket container 24 has an open top, is embedded in the vehicle mounting surface 12 , and houses the charging socket 22 therein. In this example, the socket container 24 has: a single edge portion 24a, which surrounds the outer side of the charging socket 22 when viewed from above and is fixed to the vehicle mounting surface 12; four side portions 24b, which extend downward from the inner edge of the edge portion 24a; and a single bottom portion 24c, which is located at the lower end of the side portion 24. In this example, two of the four side portions 24b located along the length direction of the tray 10 are formed as inclined surfaces extending obliquely downward inward from the inner edge of the edge portion 24a. In addition, this configuration is not essential, and a portion or all of the four side portions 24b may be formed as inclined surfaces.

[0028] The entire width of the socket receptacle 24 may be greater than the entire width of the charging socket 22 , for example, 100 mm or more.

[0029] In this example, the charging inlet 22 is fixed to a side surface portion 24 b positioned along the longitudinal direction of the tray 10 via a position adjustment table 23 . In this example, a power supply socket 16 is provided below the vehicle mounting surface 12. The power supply socket 16 may be provided on the outer peripheral surface or bottom surface of the tray 10 so as not to protrude outside the vehicle mounting surface 12. The power supply socket 16 is electrically connected to the charging inlet 22 via the power cord 14. The power supply socket 16 is configured to be connectable to a power supply plug of a power supply device connected to an external power source (not shown).

[0030] exist Figure 3B In the embodiment, the socket container 24 has a foreign matter discharge port 25 for discharging foreign matter that has entered the interior. The foreign matter discharge port 25 is provided on the bottom surface portion 24 c or the side surface portion 24 b of the socket container 24 .

[0031] The foreign matter discharge port 25 is preferably designed to allow the passage of small stones of a predetermined size. The "predetermined size" of small stones, for example, is a maximum size of 3 to 8 mm. Alternatively, the foreign matter discharge port 25 may be a circular or rectangular hole with a maximum size of less than 10 mm. The number of foreign matter discharge ports 25 is not limited to a single one; multiple ports are preferably provided. Alternatively, for example, the entire surface of the bottom portion 24 c may be opened, and a metal mesh having a plurality of circular or rectangular holes may be fixed to the bottom portion 24 c . In addition, the tray 10 preferably has an opening below the bottom portion 24 c for discharging foreign matter. Alternatively, the bottom portion 24 c of the spigot container 24 may be exposed downward from the lower surface of the tray 10 . With the above configuration, it is possible to prevent coins larger than one yen, keys, and the like from passing through, and to smoothly discharge small stones, mud, snow, and the like that have entered the socket container 24 from the foreign matter discharge port 25 to the outside.

[0032] The outer periphery of the container top cover 26 is fixed to the vehicle mounting surface 12 and covers the upper surface of the socket container 24 . The total height of the container cover 26 is lower than the lowest ground clearance of the vehicle V, and the container cover 26 is configured so that the tires T of the vehicle V can pass over it. The lowest ground clearance of the vehicle V is, for example, 90 mm.

[0033] like Figure 3A As shown, in this example, the container cover 26 has: a pair of edge portions 26a, which surround the outer side of the socket container 24 when viewed from above and are fixed to the vehicle mounting surface 12; four side portions 26b, which extend upward from the inner edge of the edge portion 26 or the vehicle mounting surface 12; and a single top portion 26c, which is located at the upper end of the side portion 26b. The edge 26a, the side surface 26b and the top surface 26c are preferably formed by stamping a metal plate of a certain thickness. In this case, the thickness of the metal plate is, for example, 2 to 5 mm, which can have the rigidity required when the tire T of the vehicle V passes over it.

[0034] In this example, the edge portion 26 a is fixed to the vehicle mounting surface 12 by bolts or screws 7 . In addition, if Figure 3B As shown, two side surfaces 26 b positioned along the longitudinal direction of the tray 10 among the four side surfaces 26 b are formed as inclined surfaces extending inwardly and obliquely upwardly from the inner edge of the rim 26 a .

[0035] If there are sharp edges on the container cover 26, the tire sidewalls in particular are vulnerable to damage and may be easily damaged. Therefore, in this example, if Figure 3A As shown, the side surface portion 26 b located on the inner side in the width direction of the tray 10 among the four side surface portions 26 b is formed as an inclined surface extending obliquely upward and inward from the vehicle mounting surface 12 . Furthermore, a space between the two side surface portions 26 b positioned in the longitudinal direction and the side surface portion 26 b located on the inner side in the width direction is blocked by an inclined surface 26 d extending from the vehicle mounting surface 12 . This configuration also provides an inclination on the side surfaces, thereby reducing the risk of tire damage and blowouts. Specifically, the inclination of the side surfaces is effective in reducing the risk of sharp edges coming into contact with the tire at right angles. This reduces the risk of tire damage or blowouts, and thus the risk of wheel damage. As a result, the risk of blowouts caused by friction on the tire side surfaces is reduced, while also preventing a reduction in aesthetics caused by friction on the wheel side surfaces.

[0036] In this example, the side surface portions 26 b located on the outer sides in the width direction of the tray 10 among the four side surface portions 26 b are formed vertically from the vehicle mounting surface 12 . In addition, this structure is not necessary. The inclined surface positioned along the width direction can be set on the outside or both sides in the width direction. If the height of the top surface portion 26c is low and has little impact on the tire, the two sides of the side surface portion 26b positioned along the width direction can also be formed vertically from the vehicle mounting surface 12.

[0037] In this example, the upper surface of the container cover 26 has a trapezoidal shape with a height difference of less than 1 cm from the lower end of the inclined surface of the side surface portion 26b in the longitudinal direction, a slope of less than 30° for the side surface portion 26b, and a flat central portion (top surface portion 26c). Alternatively, the central portion (top surface portion 26c) may be a gently inclined surface or an arcuate surface with a slope of less than 5°. In this example, the height difference between the vehicle mounting surface 12 and the lower end of the inclined surface of the side surface portion 26b is substantially equivalent to the thickness of the edge portion 26a. exist Figure 3B In the embodiment, the slope of the side surface portion 26b on the outer side in the longitudinal direction (right side in the figure) is set to about 30 degrees, and the slope of the side surface portion 26b on the inner side in the longitudinal direction (left side in the figure) is set to less than 15 degrees. In addition, the height of the top surface portion 26c may be lower than the lowest ground clearance of the vehicle V (90 mm), and is preferably 50 mm or less.

[0038] The entire width of the container cover 26 may be greater than the entire width of the socket container 24, for example, greater than 150 mm.

[0039] exist Figure 3A and Figure 3B In the embodiment, the container cover 26 further has an access opening 27 on its upper surface for accessing the charging socket 22 . The access opening 27 is configured to allow passage of the charging plug 6 connected to the charging inlet 22 and supplying power to the electric vehicle EV via the charging cable 4 , and is configured to be smaller than a tire width of the vehicle V. The dimensions of the access opening 27 are, for example, 110 mm in width and 150 mm in length.

[0040] Due to the above-mentioned structure of the container cover 26, the lower surface of the vehicle V cannot interfere with the container cover 26, and the vehicle V can move up and down the pallet 10 by crossing the container cover 26 between the tires T of the vehicle V. Even if the tire T passes over the container cover 26, the vehicle V can still move up and down the pallet 10. For example, when the charging plug 6 is the aforementioned 200V EV / PHEV charging plug, the charging plug 6 is cylindrical with a diameter of approximately 39 mm, and a person can easily connect to the charging inlet 22 through the aforementioned access opening 27 . Furthermore, the access opening 27 is set smaller than the tire width of the vehicle V. Therefore, even if the tire T passes over the access opening 27 , the tire T can pass through the access opening 27 without hindrance without being caught (falling) into the access opening 27 .

[0041] exist Figure 3A and Figure 3B In the embodiment, the container cover 26 has a reinforcing metal member 28 surrounding the access opening 27 . In this example, the reinforcing metal member 28 is formed of a metal rod having a diameter of 2 to 3 mm and is fixed along the edge of the access opening 27 by welding or the like. This configuration improves the rigidity of the periphery of the access opening 27 , and makes it difficult for water or mud that slides down along the inclination of the container upper cover 26 to enter the access opening 27 .

[0042] (Second embodiment of the socket assembly 20) Figure 4 The second embodiment of the socket assembly 20 is Figure 3B Same cross-section. In this example, the upper surface of the container upper cover 26 has an overall flat shape with a height difference of 1 cm or less in the longitudinal direction. The other configurations are the same as those of the first embodiment.

[0043] The main structural components of the pallet are located at the side ends of the pallet. Figure 4 In the case of a flat shape such as the socket assembly 20, an opening is provided on the upper surface, and the structural strength may be insufficient. Figure 4 In the case of the socket assembly 20, the opening may be provided at a position slightly inside the side end portion of the tray and away from the main structural member. If an opening is provided on the inner side of the side end of the tray, a vehicle may run aground thereon. However, the present invention provides a structural strength that does not pose a problem even if a vehicle runs aground. In addition, this structure is not essential, and Figure 4 The socket assembly 20 is arranged at the side end of the tray.

[0044] (Configuration of Socket Assembly 20) exist Figure 2A and Figure 2B In FIG. 1 , the socket assembly 20 is located inside the four corners of the vehicle mounting surface 12 . Furthermore, when the electric vehicle EV is located at the center of the vehicle mounting surface 12 in a plan view, the access opening 27 of the socket assembly 20 is located outside the front and rear tires T of the electric vehicle EV. With this configuration, even when the electric vehicle EV is positioned offset from the center of the vehicle mounting surface 12 , at least one access opening 27 can be easily accessed from the pedestrian passage 3 , and the charging plug 6 can be connected to the charging socket 22 to charge the electric vehicle EV.

[0045] In this case, the charging socket 22 of the socket assembly 20 is preferably oriented toward the inside of the tray 10 . This configuration can reduce the possibility that the charging cable 4 connected to the charging inlet 22 protrudes outside the tray 10 .

[0046] Figure 5A This is a second arrangement example of the socket assembly 20 . like Figure 5A As shown, the socket assembly 20 may be provided only at one of the four inner corners of the vehicle mounting surface 12 . This configuration can significantly reduce the cost of the electric vehicle pallet 10 .

[0047] Alternatively, the socket assembly 20 may be provided at two locations inside the four corners of the vehicle mounting surface 12. In this case, the socket assembly 20 may be provided at both sides of the front end of the vehicle mounting surface 12 or at diagonal positions among the four corners. With this configuration, even when the electric vehicle EV is positioned offset from the center of the vehicle mounting surface 12 , at least one access opening 27 can be easily accessed from the pedestrian passage 3 , and the charging plug 6 can be connected to the charging inlet 22 to charge the electric vehicle EV.

[0048] Figure 5B This is the third configuration example of the socket component. In addition, if Figure 5B As shown, the container top cover 26 constituting a plurality (two in this example) of the socket assemblies 20 may be integrated so as to have a width equal to the width of the vehicle mounting surface 12 . With this configuration, the two front tires T pass over the container upper cover 26 at the same time, so that the vehicle V can pass through without any hindrance and can easily perform driving operations.

[0049] Figure 6A This is a fourth arrangement example of the socket assembly 20 . In this example, the socket assembly 20 is located in the inner center portion of at least one of the four sides of the vehicle mounting surface 12 . exist Figure 6A In the embodiment, the socket assembly 20 is located in the widthwise center of the vehicle mounting surface 12. With this configuration, the lower surface of the vehicle V is unlikely to interfere with the container cover 26, and the vehicle can move up and down the tray 10 by crossing the socket assembly 20 between the two tires T of the front wheels. This configuration is particularly suitable because it enables the receptacle assembly 20 to be mounted on the rear side of a vehicle in a front-entry garage / rear-exit garage situation. Figure 6B This is the fifth configuration example of the socket component. exist Figure 6B In the embodiment, the socket assembly 20 is located at the longitudinal center of both sides of the vehicle mounting surface 12. With this structure, the lower surface of the vehicle V is unlikely to interfere with the container cover 26, and the vehicle can move up and down the tray 10 without crossing the socket assembly 20 between the two front tires T.

[0050] According to the embodiment of the present invention described above, the outer periphery of the container upper cover 26 is fixed to the vehicle mounting surface 12 , and the container upper cover 26 is configured to cover the upper surface of the socket container 24 that accommodates the charging socket 22 therein. The total height of the container cover 26 is set to be lower than the lowest ground clearance of the vehicle V (electric vehicle EV and non-electric vehicle), so the lower surface of the vehicle V cannot interfere with the container cover 26, and can cross the container cover 26 between the tires T of the vehicle V and move up and down the pallet 10.

[0051] Furthermore, the container top cover 26 is configured so that the tire T can pass thereon. Therefore, even when the tire T passes over the container top cover 26 , the vehicle V can still move up and down the pallet 10 . Therefore, the driving operation of the vehicle V when moving up and down the flat tray is easy for both the electric vehicle EV and the non-electric vehicle.

[0052] The container upper cover 26 has an access opening 27 on its upper surface that can be connected to the charging inlet 22. The access opening 27 is configured to allow the charging plug 6 connected to the charging inlet 22 to pass through. Therefore, by connecting the charging plug 6 to the charging inlet 22 through the access opening 27, power can be supplied to the electric vehicle EV.

[0053] Furthermore, the access opening 27 is set to be smaller than the tire width of the vehicle V. Therefore, even if the tire T passes over the access opening 27 , it can pass through the access opening 27 without getting caught in the access opening 27 . Therefore, both electric vehicles EV and non-electric vehicles can be parked freely on the flat tray without opening or closing the lid, so the vehicle width of the parkable electric vehicle EV can be set to the same as that of the non-electric vehicle.

[0054] In addition, the present invention is not limited to the above-mentioned embodiment, and various modifications can be added without departing from the scope of the present invention. Description of Reference Numerals

[0055] B entry and exit berth, FL entry and exit layer, T tire, V vehicle, EV electric vehicle, 1 mirror, 2 door, 3 passenger passage, 4 charging cable, 6 charging plug, 7 bolts or screws, 10 electric vehicle pallet, 12 vehicle mounting surface, 14 power cord, 16 power socket, 20 socket assembly, 22 charging socket, 22a protective cover, 23 position adjustment table, 24 socket container, 24a edge, 24b side, 24c bottom, 25 foreign matter discharge outlet, 26 container cover, 26a edge, 26b side, 26c top, 26d inclined surface, 27 access opening, 100 mechanical parking device.

Claims

1. A pallet for an electric vehicle, comprising a socket assembly having a rectangular shape in a plan view, a substantially flat upper surface, and being embedded in a vehicle mounting surface on which the electric vehicle is mounted. The socket assembly has: a charging socket, which is used to charge the electric vehicle; a socket container with an open top, which is embedded in the vehicle mounting surface and accommodates the charging socket therein; and A container cover, which fixes its outer periphery to the vehicle mounting surface and covers the upper surface of the socket container, The total height of the container cover is lower than the lowest ground clearance of the vehicle, and the container cover is constructed in a manner such that the tires of the vehicle can pass over it. The container cover also has an access opening on its upper surface for accessing the charging socket. The access opening is configured to allow passage of a charging plug connected to the charging socket and supplying power to the electric vehicle via a charging cable, and is configured to be smaller than a tire width of the vehicle.

2. The electric vehicle tray according to claim 1, wherein: The upper surface of the container cover has a trapezoidal shape with a height difference of less than 1 cm from the lower end of the inclined surface in the length direction, a slope of less than 30 degrees, and a flat or gently inclined surface or arc surface in the center.

3. The electric vehicle tray according to claim 1, wherein: The upper surface of the container upper cover has an overall flat shape with a height difference of less than 1 cm in the longitudinal direction.

4. The electric vehicle tray according to claim 1, wherein: The socket container has a foreign matter discharge port for discharging foreign matter that has entered the interior.

5. The electric vehicle tray according to claim 4, wherein: The foreign matter discharge port is provided on the bottom surface portion or the side surface portion of the socket container.

6. The electric vehicle tray according to claim 4, wherein: The foreign matter discharge port is set to a size that allows small stones of a predetermined size to pass through.

7. The electric vehicle tray according to claim 1, wherein: The charging socket has a protective cover that can cover the charging terminal surface thereof in a dustproof or waterproof manner and can be opened and closed below the container upper cover.

8. The electric vehicle tray according to claim 1, wherein: A reinforcing metal member is provided surrounding the access opening.

9. The electric vehicle tray according to claim 1, wherein: When the electric vehicle is located at the center of the vehicle mounting surface, the access opening of the socket assembly is located outside the front and rear tires of the electric vehicle.

10. The electric vehicle tray according to claim 9, wherein: The socket assembly is located inside at least one of the four corners of the vehicle mounting surface.

11. The electric vehicle tray according to claim 9, wherein: The socket assembly is located at an inner center portion of at least one of the four sides of the vehicle mounting surface.

12. The electric vehicle tray according to claim 1, wherein: The electric vehicle tray includes a power supply socket electrically connected to the charging inlet below the vehicle mounting surface and connectable to a power supply plug of a power supply device connected to an external power source. 13 . A mechanical parking device comprising the electric vehicle tray according to claim 1 .

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