Two-level parking device with charging function

Abstract

To provide a two-or-more-storied parking device with a charging function that can be installed in a smaller installation area than a conventional two-or-more-storied parking device with an EV vehicle charging function.SOLUTION: A two-or-more-storied parking device 100 with a charging function provided with two or more parking spaces in the same installation space comprises: a pallet 2 that moves up and down between a loading and unloading height at which EV vehicles enter and exit and a parking space above it; a rear beam 3 that extends in a width direction of the pallet above a rear end of the pallet; a charging stand 10 that is erected at an end of the pallet and has a charging outlet for supplying power to an EV vehicle; and a power cable 11 that supplies power to the charging stand. The power cable 11 has a hanging portion 14a which hangs down from the rear beam 3 and in which a stand-side end 11b at a tip of the power cable is connected to the charging stand. A length of the hanging portion 14a includes an extra cable length that allows the pallet to be raised and lowered. The hanging portion 14a hangs down from the rear beam 3 at a position between both widthwise ends 2a of the pallet in the width direction.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a two-level multi-level parking device that has the function of charging an EV vehicle. [Background technology]

[0002] Two-level multi-level parking systems can be broadly divided into above-ground types, where parking spaces are provided only above ground, and pit types, where parking spaces are provided above ground and underground. In both above-ground and pit types, vehicles are loaded and unloaded by loading them directly onto a pallet located at loading / unloading height (FL), or by unloading them from a pallet at loading / unloading height. The two-tiered parking device raises and lowers or moves sideways the pallet into the parking space, thereby creating two or more tiers of parking spaces in the same installation space and parking vehicles.

[0003] In recent years, electric vehicles (EVs), which use electric motors as their power source, have become popular, replacing gasoline-powered vehicles. EVs are environmentally friendly because they reduce exhaust gas emissions, but instead of refueling with gasoline, they require batteries to be charged. For this reason, mechanical parking devices with charging functions have been developed that charge EVs while they are parked in the mechanical parking device. In such mechanical parking devices with charging functions, for example, a charging stand for power supply is installed on the pallet on which the EV vehicle is loaded, and the EV can be charged by connecting the charging stand to the EV vehicle with a charging cable when it enters the parking lot. Such a two-level multi-level parking device equipped with a pallet capable of charging an EV vehicle is disclosed in, for example, Patent Document 1.

[0004] The two-level parking system disclosed in Patent Document 1 supplies power to a charging stand set up on a pallet by connecting a predetermined position on the frame body to the charging stand with a power cable having a predetermined slack. In the case of a pallet that moves up and down, this "predetermined position on the frame body" is a control panel fixed to the outside of the pallet in a plan view, and in the case of a pallet that moves sideways, it is a control panel on a wiring duct whose ends extend to the left and right of the frame body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-95848 Summary of the Invention [Problem to be solved by the invention]

[0006] In the two-level parking system of Patent Document 1, one end of the power cable is fixed to the frame body outside the outer edge of the pallet, so the power cable hangs down outside the outer edge of the pallet, which could cause the power cable to interfere with adjacent pallets or vehicles.

[0007] Furthermore, because space must be secured to accommodate the control panel fixed to the frame body and the loosened power cable, the installation space required to park one vehicle must be increased by the amount of space occupied by the control panel and the loosened power cable. Therefore, the two-level parking device in Patent Document 1 required a larger installation area than a two-level parking device without a charging function for EV vehicles.

[0008] The present invention has been devised to solve the above-mentioned problems. That is, an object of the present invention is to provide a two-level multi-level parking system with a charging function that can be installed in a smaller installation area than conventional two-level multi-level parking systems with a charging function for electric vehicles. [Means for solving the problem]

[0009] According to the present invention, a two-level parking device with a charging function in which two or more parking spaces are provided in the same installation space, A pallet that moves up and down between the height at which EVs enter and exit the parking lot and the parking space above that height; a rear beam extending in the width direction of the pallet above the rear end of the pallet; A charging stand having a charging outlet that is erected at the end of the pallet and supplies power to an EV vehicle; a power cable for supplying power to the charging station; the power cable has a hanging portion that hangs down from the rear beam and a stand-side end that connects to the charging stand, The length of the hanging portion includes an excess length of the cable that allows the pallet to be raised and lowered, A two-level multi-level parking device with charging function is provided, in which the hanging portion hangs down from the rear beam at a position between both widthwise ends of the pallet in the width direction. [Effects of the Invention]

[0010] According to the embodiment of the present invention described above, the power cable has a hanging portion that hangs down from the rear beam and whose stand-side end connects to the charging stand. The hanging portion hangs down from the rear beam at a position between the widthwise ends of the pallet. This ensures that the hanging portion of the power cable does not extend beyond the outer edge of the pallet, regardless of the vertical position of the pallet. In other words, the two-level parking system of this embodiment does not require extra space outside the pallet when viewed from above to accommodate the hanging portion of the power cable. Therefore, since no space is required outside the pallet for installing the hanging portion of the power cable, the two-level parking system of this embodiment can reduce the space required to park one vehicle compared to conventional two-level parking systems. In other words, the two-level parking system of this embodiment can be installed in the same installation area as a two-level parking system without a charging function for EV vehicles. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a front view of a two-level parking device with charging function according to the present invention. [Figure 2] 1 is a plan view of a two-level parking device with charging function according to the present invention. [Figure 3] FIG. 3 is a view taken along the arrow AA in FIG. 2. [Figure 4]This is a view taken along the arrow AA in Figure 2 when pallets are being stored and removed from the 4th floor. [Figure 5] FIG. 4 is an explanatory diagram of a cable protection cover. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, common parts in the drawings are given the same reference numerals, and duplicated explanations will be omitted.

[0013] FIG. 1 is a front view of a two-level multi-level parking device 100 with a charging function according to the present invention (hereinafter simply referred to as "two-level multi-level parking device 100"). In this example, the two-level parking device 100 is a five-level, lift-and-traverse type on the ground that has five levels (1F, 2F, 3F, 4F, 5F) of vehicle parking spaces in the same installation space.

[0014] In this example, of the five tiers, two pallets 2 located on the first floor can move horizontally, two pallets 2 each located on the second, third, and fourth floors can move horizontally and move up and down, and three pallets 2 located on the fifth floor can only move up and down. Therefore, in this example, the capacity of the vehicle 1 is 3×5−4=11.

[0015] In this example, the triple-entrance, two-level parking system has three loading and unloading sections in installation spaces A, B, and C. The overall width of the pallets 2 is preferably the same, but may be different. Each loading and unloading section in installation spaces A, B, and C is designed so that the three pallets 2 are positioned adjacent to each other with the necessary gap (for example, 40 mm or less) between them.

[0016] The two pallets 2 located on the first floor have wheels 6a at both ends in the longitudinal direction, and are moved horizontally by a horizontal drive device (not shown) along two horizontal rails 8a provided on the first floor, allowing the vehicle 1 to be directly brought in and out of one of the loading and unloading sections of installation spaces A, B, and C. Hereinafter, "loading and unloading" refers to loading and unloading.

[0017] Pallets 2, two per floor, are positioned on the second, third, and fourth floors, and are hoisted by rectangular frames 7, which have wheels 6b at both ends in the longitudinal direction. The rectangular frames 7 surround the pallets 2 parked on the intermediate level between the top and bottom levels, and are installed so that they can be moved laterally while suspending the pallets 2. With this configuration, pallets 2, two of which are located on each of the 2nd, 3rd, and 4th floors, are moved horizontally by a horizontal drive device (not shown) along horizontal rails 8b provided on each of the 2nd, 3rd, and 4th floors, allowing vehicles 1 to be directly loaded into or unloaded from one of the loading and unloading sections of installation spaces A, B, and C. On the 2nd, 3rd, and 4th floors, intermediate cross beams 9c extending in the width direction of the pallets 2 are supported by supports 9b of the main frame 9. The horizontal rails 8b are supported by these intermediate cross beams 9c.

[0018] In this example, the two-level parking device 100 has a pallet 2 that can be raised and lowered to carry the vehicle 1 between the entry / exit height (FL) at which the vehicle 1 enters and exits, and a parking space above this entry / exit height. The pallets 2 that can be raised and lowered correspond to the six pallets 2 located on the second to fourth floors and the three pallets 2 located on the fifth floor.

[0019] In this example, the two-level parking device 100 further includes a lifting drive device 5 for lifting and lowering the pallet 2. The lifting drive device 5 winds up or unwinds a flexible string member 4 (chain or wire) that extends vertically at a position that does not interfere with the vehicle 1, and raises or lowers the lower end of the string member.

[0020] The lifting drive device 5 for the second to fourth floors is fixed to a rectangular frame 7 and moves horizontally together with the rectangular frame 7. The lifting drive device 5 for the 5th floor is fixed to the main body frame 9, and is configured to lift and lower the three pallets 2 independently from the main body frame 9.

[0021] In addition, in this example, the lower ends of the four string members 4 are fixed to a total of four locations, at the front and back of the pallet 2, taking into account the load balance, and the lifting drive device 5 lifts and lowers the pallet 2 while keeping it horizontal.

[0022] The present invention is not limited to the two-level parking system 100 described above, and may be applied to other two-level parking systems as long as they have a plurality of pallets 2.

[0023] FIG. 2 is a plan view of the two-level parking system 100 with charging function according to the present invention. The two-level parking system 100 of this embodiment is equipped with a charging stand 10 at the rear end of the pallet 2, which has a charging outlet that supplies power to the electric vehicle 1. By connecting the charging outlet of the charging stand 10 to the electric vehicle 1 with a charging cable 13, the electric vehicle 1 can be charged while parked. Of course, gasoline-powered vehicles can also be loaded onto the charging pallet of the two-level parking system 100 of this embodiment. The two-level parking system 100 of this embodiment also includes an uppermost cross beam 9a extending widthwise above the rear end of the uppermost (5F) pallet 2. The uppermost cross beam 9a is supported by support posts 9b of the main frame 9.

[0024] Fig. 3 is a view seen from the arrow AA in Fig. 2. Fig. 4 is a view seen from the arrow AA in Fig. 2 when pallet 2 is being loaded and unloaded from the 4th floor. Above the rear end of the pallet 2, there is a beam extending in the width direction of the pallet 2. Hereinafter, this beam will be referred to as the rear beam 3.

[0025] The rear beam 3 is always present on the middle and top pallets 2. For example, in the case of the top stage, the top stage cross beam 9 a corresponds to the rear beam 3 . In the case of the intermediate levels (2F, 3F, 4F), of the four beams constituting the rectangular frame 7, the beam extending in the width direction behind the pallet 2 corresponds to the rear beam 3. In other words, the rectangular frame 7 has at least four beams in total: (1) a beam extending in the width direction of the pallet 2 in front of the pallet 2, (2) a beam extending in the width direction of the pallet 2 behind the pallet 2, and (3) two beams extending in the longitudinal direction of the pallet 2 on the left and right sides of the pallet 2. Of these, the beam of the rectangular frame 7 extending in the width direction of the pallet 2 behind the pallet 2 corresponds to the rear beam 3 of the present invention.

[0026] Electric power supplied to each charging stand 10 of the two-level parking device 100 of this embodiment is supplied from the EV control panel 15 via a power cable 11. The two-level parking device 100 of this embodiment is equipped with a power cable 11 for supplying power to the charging stand 10. The power cable 11 has a wiring portion 14b extending from the EV control panel 15 to the rear beam 3, and a hanging portion 14a that hangs down from the rear beam 3 and whose stand-side end 11b connects to the charging stand 11. In other words, both ends of the power cable 11 are connected to the EV control panel 15 and the charging stand 10, and the middle portion is tethered to the rear beam 3. With this part connected to the rear beam 3 as the boundary, the part on the charging stand side is the hanging portion 14a, and the part on the EV control panel side is the wiring portion 14b.

[0027] The wiring portion 14b of the power cable 11 is installed along the support posts 9b of the main frame 9, the uppermost cross beam 9a, and the middle cross beam 9c. For example, wiring section 14b that supplies power to pallet 2 in the middle stage is wired from EV control panel 15 to support post 9b between two adjacent installation spaces (A, B or B, C) within the movement range of that pallet 2, and from there passes behind pallet 2 and is fixed to rear beam 3 of rectangular frame 7. In this diagram, pallet 2 in the middle stage moves back and forth between the two adjacent installation spaces (A, B or B, C) together with rectangular frame 7 while remaining suspended from the rectangular frame 7.

[0028] With this configuration, wiring section 14b connecting support column 9b and rectangular frame 7 does not protrude from installation spaces A, B, and C where pallet 2 is located, even when pallet 2 on the middle level moves sideways. Therefore, there is no risk that wiring section 14b of pallet 2 on the middle level, which moves sideways and retreats when pallet 2 on the upper level is raised or lowered, will come into contact with pallet 2, power cable 11, or vehicle 1 as it moves up or down. In addition, since the support 9b and the rectangular frame 7 are connected through the rear of the pallet 2, there is no collision with the power cable 11 on the same pallet 2.

[0029] The upper end 11a of the hanging portion 14a of the power cable 11 is fixed to the rear beam 3 of the rectangular frame 7 on the intermediate levels (2F, 3F, 4F). As a result, when the pallet 2 moves laterally, the upper end 11a of the hanging portion 14a can move laterally together with the rectangular frame 7, as shown on 2F and 3F in FIG. 4. This prevents the power cable 11 from hanging down outside the outer edge of the pallet 2 or hanging laterally beyond the outer edge of the pallet 2, so the area occupied by the power cable 11 can be kept inside the pallet 2 when viewed from above. Therefore, the power cable 11 does not protrude from the pallet 2, preventing the power cable 11 from hitting an adjacent pallet 2 or the vehicle 1.

[0030] In the two-level parking system described in Patent Document 1, the power cable that supplies power to the traveling pallet is connected to the upper end of the charging stand that stands on the pallet and to a wiring duct located on the outside of the pallet's outer edge. Both ends of this power cable are suspended from the charging stand and the frame body, and the cable is structured to extend across two adjacent installation spaces.

[0031] For example, the two-level multi-level parking system in Patent Document 1 has three installation spaces, A, B, and C. When the pallet on the top level of installation space C is moved in or out, the two intermediate lateral pallets are retracted to installation spaces A and B. At this time, the power cable extending from the lateral pallet in installation space B is suspended with some slack from the charging stand on the lateral pallet and the frame body of installation space C. Therefore, if a pallet equipped with a charging stand were placed above this intermediate lateral pallet, the power cable of the upper pallet or the pallet would come into contact with the power cable of the intermediate lateral pallet. Therefore, in the two-level parking system of Patent Document 1, a pallet equipped with a charging stand could not be installed on a level above the lateral pallet equipped with a charging stand on the middle level.

[0032] On the other hand, in the two-level parking device 100 of this embodiment, the power cable 11 is contained inside the pallet 2 in a plan view, and furthermore, the upper end 11a of the hanging portion 14a is fixed to the rectangular frame 7, so that when the device moves sideways, the entire hanging portion 14a moves together with the pallet 2 into the same installation space. As a result, the hanging portion 14a of the power cable 11 does not protrude not only from the installation space where the pallet 2 is located, but also from the outer edge of the pallet itself, so the hanging portion 14a does not enter the installation space where the upper pallet 2 moves up and down.

[0033] In other words, for example, in the example of Figure 3, the hanging portions 14a from the 2nd floor to the 4th floor have moved to installation spaces A and B together with the rectangular frame 7 and pallet 2, so there are no hanging portions 14a protruding into installation space C. Therefore, the pallet 2 in the installation space C on the 5th floor can be lowered to the 1st floor using the space of the installation space C without being obstructed by the power cable 11 from the 2nd floor to the 4th floor.

[0034] Furthermore, when the middle and top pallets 2 are lowered to the first floor, the hanging portions 14a extend vertically with a gentle slack, as shown in Figures 3 and 4. As shown in installation space C in Figure 2, even when the power cable 11 is extended to its maximum extent, the area occupied by the hanging portions 14a in a plan view is contained within the outer edge of the pallet 2. There is no risk that the hanging portions 14a of the pallets 2 lowered from the middle and top parking spaces to the first floor will come into contact with the hanging portions 14a of the adjacent installation spaces.

[0035] Therefore, in the two-level parking system 100 of this embodiment, a charging stand-mounted pallet 2 can be installed on a level above the charging stand-mounted pallet 2 that can be raised and lowered and moved laterally. In this way, the two-level parking device 100 of this embodiment has a higher degree of design freedom than the two-level parking device of Patent Document 1 by fixing the upper end 11a of the hanging portion 14a to the beam of the rectangular frame 7 extending widthwise behind the pallet 2.

[0036] Hanging portion 14a of power cable 11 hangs down from rear beam 3 at a position between both widthwise ends 2a of pallet 2 in the width direction of pallet 2. In other words, the position on the rear beam from which hanging portion 14a hangs (i.e., the hanging position on the rear beam in the width direction of pallet 2) is between both widthwise ends 2a of pallet 2. For example, in the example shown in this figure, a mooring member 16 is fixed between both widthwise ends 2a of the pallet 2 in the width direction of the rear beam 3. In this example, the mooring member 16 is a metal flat plate with a hole that is fixed horizontally to the rear beam 3. For example, the power cable 11 may be passed through the hole in the mooring member 16, and the power cable 11 may be fixed to the mooring member 16 at the upper end 11a of the hanging portion 14a with a fastener such as a connecting band. It goes without saying that the configuration and material of the mooring member 16 and the method of fixing the power cable 11 to the rear beam 3 are not limited to those described above.

[0037] With this configuration, when the pallet 2 is raised to each parking space, the slack power cables 11 are piled up on the pallet, preventing the power cables 11 from falling off the pallet 2. Therefore, with the two-level parking device 100 of this embodiment, there is no need to reserve space outside the outer edge of the pallet 2 for the power cables 11 that protrude from the pallet 2, and since there is no need to reserve extra space, the space required to park one vehicle can be made smaller than with conventional two-level parking devices. In other words, the two-level parking device 100 has five levels (1F, 2F, 3F, 4F, 5F) of vehicle parking spaces provided in the same installation space, but there is no need to widen the installation space in the width direction to install the power cable 11. Therefore, the two-level parking device 100 of this embodiment can be installed in the same installation area as a two-level parking device intended for gasoline-powered vehicles only.

[0038] More specifically, it is preferable that the hanging portion 14a of the power cable 11 is provided on the rear beam, above the widthwise center of the pallet 2, or above a position that is further away from the widthwise center than the charging stand 10. This allows the hanging portions 14a to be suspended with slack when the top and middle pallets 2 are lowered to the first floor.

[0039] The length of the hanging portion 14a also includes an extra length of the cable that allows the pallet 2 to be raised and lowered. The stand side end 11b of the power cable 11 is connected to the charging stand 10, and the hanging part 14a is made loose (excess length), so that the power cable 11 can be prevented from getting caught on surrounding equipment when the pallet 2 is raised or lowered.

[0040] 5A and 5B are explanatory diagrams of the cable protection cover 12. Fig. 5A is a perspective view, and Fig. 5B is a front view. The two-level parking system 100 of this embodiment is equipped with a cable protection cover 12 that limits bending of the hanging portion 14a of the power cable 11 in the longitudinal direction of the pallet 2. The upper end of the cable protection cover 12 is preferably connected to a mooring member 16.

[0041] For example, the cable protection cover 12 is configured by connecting a series of hollow cylindrical sheath members 17, such as hollow cylindrical or hollow rectangular parallelepiped sheath members 17, with the multiple sheath members 17 connected by a rotation axis 18 extending in the horizontal longitudinal direction of the pallet 2. This figure illustrates an example in which the sheath members 17 of the cable protection cover 12 are hollow cylindrical. By passing the power cable 11 through the hollow 17a of the sheath members 17, the bending of the power cable 11 can be restricted to a vertical plane extending in the width direction of the pallet 2. This prevents the power cable 11 with the cable protection cover 12 attached from swaying in the longitudinal direction of the pallet 2. Therefore, as shown in Figures 2 to 4, when the pallet 2 is raised, the power cables 11 with the cable protection cover 12 attached are stacked vertically while drawing a loop around an imaginary axis that is horizontal to the longitudinal direction of the pallet 2.

[0042] This prevents the power cable 11 from swaying in the longitudinal direction of the pallet 2 even if the power cable 11 is swayed by the wind, thereby preventing the power cable 11 from coming into contact with the vehicle 1 or surrounding equipment. Furthermore, the presence of the cable protection cover 12 allows the power cables 11 to be stacked vertically without being coiled, so the stacked power cables 11 do not spread out in the longitudinal direction of the pallet 2. This prevents the power cables 11 from taking up space on the pallet. It also prevents the stacked power cables 11 from coming into contact with the vehicle 1.

[0043] According to the embodiment of the present invention described above, power cable 11 hangs down from rear beam 3 and has hanging portion 14a at its stand-side end 11b that connects to charging stand 10, with hanging portion 14a hanging down from rear beam 3 at a position between both widthwise ends 2a of pallet 2. As a result, no matter what position pallet 2 is in the vertical direction, hanging portion 14a of power cable 11 does not extend outside the outer edge of pallet 2. In other words, with two-level parking device 100 of this embodiment, there is no need to ensure extra space outside pallet 2 when viewed in a plan view to accommodate hanging portion 14a of the power cable. Therefore, since no space is required outside the pallet 2 to install the hanging portion 14a of the power cable 11, the two-level parking device 100 of this embodiment can reduce the space required to park one vehicle compared to conventional two-level parking devices. In other words, the two-level parking device 100 of this embodiment can be installed in the same installation area as a two-level parking device without a charging function for the EV 1.

[0044] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the example described above, a single power cable 11 connects the EV control panel 15 to the charging stand 10, but the present invention is not limited to this. The power cable constituting the hanging portion 14a and the power cable constituting the wiring portion 14b may be prepared separately and connected at the rear beam 3. [Explanation of symbols]

[0045] A, B, C installation space, 1 EV vehicle, 2 pallet, 2a width direction end, 3 rear beam, 4 string member (chain or wire), 5 lifting drive device, 6a, 6b wheels, 7 rectangular frame, 8a, 8b horizontal rail, 9 main frame, 9a top cross beam, 9b column, 9c middle crossbeam, 10 Charging stand, 11 Power cable, 11a upper end of the pendulous part; 11b Stand end of power cable, 12 Cable protection cover, 13 Charging cable, 14a Power cable hanging part, 14b Power cable wiring section, 15 EV control panel, 16 mooring member, 17 sheath member, 17a hollow sheath member, 18 rotation axis, 100 Two-level parking device with charging function

Claims

1. A two-level parking device with a charging function in which two or more parking spaces are provided in the same installation space, a pallet that moves up and down between the height at which EV vehicles enter and exit the parking lot and a parking space above that height; a rear beam extending in the width direction of the pallet above the rear end of the pallet; a charging stand having a charging outlet that is erected at an end of the pallet and supplies power to an EV vehicle; a power cable for supplying power to the charging station; the power cable has a hanging portion that hangs down from the rear beam and a stand-side end that connects to the charging stand, The length of the hanging portion includes an excess length of the cable that allows the pallet to be raised and lowered, The hanging portion hangs down from the rear beam at a position between both widthwise ends of the pallet in the width direction, a rectangular frame surrounding the pallet parked on the intermediate level between the top and bottom levels, suspending the pallet and being installed so as to be movable laterally; A two-level multi-level parking device with charging function, wherein the rear beam is one of the four beams that make up the rectangular frame and extends in the width direction behind the pallet.

2. a top-stage cross beam extending in the width direction behind the top-stage pallet; The two-level parking device with charging function according to claim 1 , wherein the rear beam is the uppermost cross beam.

3. The two-level parking device with charging function according to claim 1, further comprising a cable protection cover that limits bending of the hanging portion in the longitudinal direction of the pallet.

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