Charging equipment for charging electric vehicles

Abstract

Charging device (2) for charging electric vehicles - with at least one charging station (4) which has a charging cable (39) or a charging socket for connecting a charging cable, and - with at least one cable duct section (12) for guiding at least one power supply line to the or each charging station (4), wherein the or each cable duct section (12) has a U-shaped cross-section with an open longitudinal side (18), wherein the charging station (4) is mounted either adjacent to the cable duct section (12) on the substrate (24) or on the cable duct section (12) connected to the substrate (24).

Description

[0001] The invention relates to a charging device for charging electric vehicles, comprising at least one charging station which has a charging cable or a charging socket for connecting a charging cable.

[0002] Such charging facilities with (usually several) charging columns, i.e., freestanding charging stations, are typically used in public or private parking areas, for example, the employee parking lot of a company, the customer parking lot of a supermarket, the parking lot of an apartment building or a larger residential complex, or in an area of ​​a petrol station.

[0003] The invention relates specifically to charging equipment with charging stations that provide the charging current in the form of single-phase or multi-phase alternating current. However, the invention can also be applied to public charging facilities with DC fast charging stations.

[0004] With conventional charging stations of the type described above, each charging point is usually installed on its own concrete foundation. The cabling, i.e., the supply of power lines and, if applicable, signal lines to the charging points, is typically done via underground cables. The installation of a conventional charging station therefore requires excavation work, the cost of which is often comparable to the cost of manufacturing and assembling the charging station's components and their electrical connection.

[0005] The invention is based on the objective of providing a charging device for charging electric vehicles that is comparatively simple and inexpensive to install.

[0006] This problem is solved according to the invention by the features of claim 1. Advantageous and partly inventive embodiments and further developments of the invention are set out in the dependent claims and the following description.

[0007] The charging device according to the invention for charging electric vehicles comprises at least one charging station, which has a charging cable (permanently connected to the charging station) or a charging socket for connecting a charging cable (brought by the vehicle user). In preferred embodiments of the invention, the charging device comprises several charging stations. Here and in the following, a charging station is defined – in contrast to a wall-mounted charging station (wallbox) – as a charging station mounted freestanding on the ground (i.e., the earth's surface).

[0008] Furthermore, the charging device comprises at least one cable duct section for routing at least one power supply line (and optionally at least one signal line) to the charging station(s). The cable duct section(s) has a U-shaped cross-section with one open longitudinal side. In preferred embodiments, the device comprises several (in particular, a plurality of) cable duct sections which, laid flush next to each other, form a cable duct for connecting one or more charging stations to a central power distribution unit.

[0009] The at least one charging station is mounted (directly or indirectly) either on the ground. In a suitable embodiment, the at least one charging station is mounted next to and adjacent to the cable duct section. In an alternative (and preferred) embodiment, the charging station is mounted on the cable duct section connected to the ground. In its mounted state, the charging station is optionally located entirely above ground or fully or partially embedded in the ground.

[0010] The charging station(s) are preferably mounted by screwing or otherwise fastening them to the cable duct section and / or the substrate. Alternatively, at least one charging station is equipped with a base which, due to its contact surface, weight, and / or a possible mechanical connection to an adjacent cable duct section, ensures the charging station's stability without further fastening measures. In this case, the charging station is preferably mounted by placing it on the substrate with its base and connecting it to the cable duct section via wiring and, optionally, mechanically.

[0011] In a preferred embodiment, the charging device comprises several charging stations mounted in a row on the cable duct section or on several cable duct sections laid flush against each other, and thus connected to one another by the at least one cable duct section (and the cable duct formed thereby). In a further embodiment of the charging device, several charging stations are also mounted in a row on the ground, with at least one cable duct section interposed between each pair of adjacent charging stations to form a cable duct between these charging stations.

[0012] The at least one cable duct section is preferably made of artificial stone, in particular concrete or brick. Such cable duct sections are typically used, for example, for laying signal cables alongside railway lines. In alternative designs, the at least one cable duct section is made of steel, in particular stainless steel, or cast iron. In its basic form, the cable duct section is preferably designed as a profile section and thus has a constant (U-shaped) cross-section along its entire length and open ends at both longitudinal ends. However, the loading device may optionally include one or more special forms of the cable duct section, e.g., at least one curved or angled corner section, at least one end section with a closed end, at least one switch section for creating a branch of the cable duct, and / or at least one crossing section.

[0013] In preferred embodiments, the cable duct section or sections are laid wholly or partially in the substrate with their upward-facing, open longitudinal side, in particular such that the open longitudinal side is flush with a surface of the substrate. The cable duct section or sections are, for example, - within a paved, asphalted, concreted or gravelled parking area, - as the perimeter of such a parking area, - at a distance from such a parking area in the ground, or - laid as a raised curb or parallel to a raised curb. The cable duct section(s) is preferably installed during the construction of a parking space associated with the charging station. The cable duct section(s) is then appropriately integrated into the surface (and, if the cable duct section is sufficiently high, possibly also into the substructure) of the parking space. Alternatively, and particularly suitable for the straightforward retrofitting of an existing asphalt or concrete parking space, the cable duct section(s) is inserted into a milled groove previously cut into the parking space surface.

[0014] As an alternative to embedding the cable duct section(s) (wholly or partially) in the subsoil, the cable duct section(s) can also be laid on the subsoil according to the invention. Alternatively, the cable duct section(s) can also be mounted on stilts at a distance above the subsoil according to the invention. The latter two embodiments allow for a particularly simple retrofit of existing parking areas with the charging equipment, without causing any significant structural alterations to such areas. They are therefore particularly suitable for short-term and / or temporary installation of the charging equipment, e.g., for the duration of an event.

[0015] If the at least one cable duct section is installed with its open longitudinal side facing upwards, the device preferably additionally comprises at least one cover plate for covering the open longitudinal side of the cable duct section. In an advantageous embodiment of the invention, the charging station is mounted (directly or indirectly) on the cover plate or on one of possibly several cover plates, in particular by screwing it on, with the cover plate in turn being firmly connected to the cable duct section.

[0016] In a further embodiment of the invention, the cable duct section(s) is laid with its open longitudinal side facing downwards on or (wholly or partially) in the substrate. This embodiment has the advantage that the cable duct section(s) simultaneously serve as a cover for the cable duct. Laying the cable duct section(s) with its open longitudinal side facing downwards is particularly well suited for the straightforward (especially temporary) retrofitting of existing parking spaces with the charging equipment, without causing any significant structural alteration to such surfaces. Within the scope of the invention, the cable duct section(s) can also be inserted with its open longitudinal side facing downwards into a milled groove in an asphalted or concreted parking space surface.

[0017] If the at least one cable duct section (with the open long side facing up or down) is laid on the substrate, it is preferably firmly attached to the substrate, e.g., by means of ground screws, ground anchors, cement, tar, etc. Alternatively, a secure (i.e., immovable under the forces expected during use of the charging device) support of the at least one cable duct section is ensured by its contact area and / or its weight and / or a possible mechanical connection to an adjacent cable duct section or a charging station. In this case, the cable duct section(s) can optionally be laid on the substrate without further fastening measures.

[0018] In principle, the charging station can be mounted directly on the cable duct section, the associated cover plate (if applicable), or the substrate. Preferably, however, the installation also includes at least one mounting base via which the charging station is indirectly mounted to the cable duct section, the associated cover plate, or the substrate; in the case of multiple charging stations, the installation includes a corresponding number of mounting bases.

[0019] The mounting base serves, on the one hand, as an adapter that allows for easy adaptation to different configurations of the installation or various installation situations. For example, different mounting bases can be kept on hand according to a modular principle, in order to mount the same charging station in different installation situations and / or with different versions of the cable duct section.

[0020] On the other hand, in a preferred embodiment of the invention, the mounting base also serves to adjust the height and tilt of the charging station during installation. It thus allows, with simple means, in particular, a precise vertical alignment of the charging station in installation situations where the surface of an associated cable duct section or another intended mounting surface of the charging station is not exactly horizontal.

[0021] In an advantageous embodiment of the invention, the mounting base for adjusting the height and / or tilt of the charging station comprises a base plate to which several threaded studs with height-adjustable spacers are attached. The charging station is screwed to the threaded studs so that it rests on the spacers. By adjusting the height of the spacers, the charging station can be adjusted with respect to its height and tilt. To enable particularly easy height and tilt adjustment of the charging station, preferably exactly three threaded studs arranged in a triangle (especially an equilateral triangle) are attached to the base plate of the mounting base.

[0022] The base plate of the mounting bracket is preferably also attached to the cable duct section, which may be resting on the cable duct section, or directly to the substrate by means of screws. In the latter case, if the substrate is asphalt or concrete, the attachment is achieved, for example, via threaded studs or anchors cast into the substrate. If the charging station is to be mounted directly on the ground, the mounting bracket is fixed to the substrate, for example, by means of a ground screw attached to the underside of the base plate.

[0023] In embodiments of the invention in which the charging station is mounted directly (or indirectly via the mounting base) to the cover plate resting on the cable duct section, the cover plate is preferably provided with at least two elongated holes extending longitudinally along the cover plate, to which the charging station or the mounting base (in particular its base plate) is screwed. The elongated holes in the cover plate enable the charging station or the mounting base to be adjusted longitudinally along the cover plate and thus along the length of the cable duct section.

[0024] The advantages achieved with the invention lie particularly in the fact that, due to the cable duct formed from one or more cable duct sections, excavation work for the installation of the charging equipment is either not required at all or only to a minimal extent, thus greatly simplifying the installation of the charging equipment. Maintenance of the equipment and repairs in the event of a cable failure are also significantly simplified. Further simplification is achieved by the optional mounting of the charging stations on the cable duct, as this eliminates the need for a separate foundation for each charging station (in particular, a separate footing). The charging equipment can also be easily and flexibly integrated into newly constructed parking areas as well as retrofitted into existing parking areas.

[0025] The various embodiments of the invention described above can readily be combined with one another. In particular, within the scope of the invention, different types of cable duct sections, cable duct routing configurations, and mounting variants of the charging stations (especially different types of mounting bases) can be used in combination with one and the same device.

[0026] Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. The drawing shows: Fig. 1 In a schematically simplified perspective view, a first embodiment of a charging device for charging electric vehicles with five charging columns mounted on a cable duct at the edge of a parking space, Fig. 2 in a schematically simplified section the cable duct laid at the edge of the parking area according to Fig. 1 with a charging station mounted on it, Fig. 3 in isolated perspective view in side view a cable duct section of the charging device according to Fig. 1 with a charging station mounted on it, Fig. 4 in perspective view from a slanted top view the cable duct section according to Fig. 3 with the charging station cut off above a base plate, Fig. 5 in cross-sectional perspective view the cable duct section according to Fig. 3 with the charging station mounted on it by means of a mounting base and a cover plate of the cable duct, Fig. 6 in perspective view from an oblique angle above, the cable duct section covered by the top plate according to Fig. 3 and the mounting base screwed to the top plate, Fig. 7 in a schematically simplified perspective view a second embodiment of the charging device, Fig. 8 in isolated perspective view in side view a cable duct section of the charging device according to Fig. 7 with a charging station mounted on it, Fig. 9 and Fig. 10. In cross-sectional perspective view, looking obliquely from above or below, a cable duct section of the charging device according to Fig. 7 with the charging station mounted on it by means of a mounting base, Fig. 11 in isolated perspective view looking from obliquely above the mounting base according to Fig. 9 and Fig. 10, and Fig. 12 in isolated perspective view in the direction of oblique top view of the mounting base according to Fig. 9, Fig. 10 to Fig. 11 with the charging station mounted on it.

[0027] Corresponding parts and structures are always provided with the same reference symbols in all figures.

[0028] In the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. Figure 6 schematically illustrates a first embodiment of a charging device 2 for charging electric vehicles. In the illustrated example, the charging device 2 comprises five charging stations 4 arranged in a row at the edge of a parking space 6. The charging stations 4 are mounted on a continuous cable duct 8, which connects the charging stations 4 to each other and to a central power distribution unit (hereinafter referred to as distribution station 10). Specifically, the cable duct 8 contains power supply lines through which each of the charging stations 4 is individually connected to the distribution station 10 for the supply of charging current. Furthermore, the cable duct 8 carries a signal line (e.g., in the form of a fieldbus or a LAN connection) via which the charging stations 4 are connected to the distribution station 10 for the exchange of control and status signals.With regard to the exchanged control and status signals, the distribution station 10 mediates between the charging stations 4 and a switching and control unit (not explicitly shown). It forwards the control and status signals sent by the charging stations 4 to the switching and control unit and the control and status signals sent by the switching and control unit back to the charging stations 4. Alternatively, at least one switching and control function of the charging device 2 is implemented in the distribution station 10, so that the associated control and status signals are generated, received, and processed by the distribution station 10 itself.

[0029] The cable duct 8 is formed from aligned cable duct sections 12, one of which is in Fig. Figure 3 shows that the cable duct sections 12 are U-shaped profile parts in cross-section. Each cable duct section 12 is formed from a base 14 and two perpendicular side walls 16 projecting from it. The cable duct section 12 is open on one longitudinal side 18 opposite the base 14 and on both end faces. In the example according to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6. The cable duct sections 12 are made of concrete.

[0030] As from Fig. As can be seen from Figure 5, a stepped shoulder (cover rebate 20) is formed on the free-end edge of the two side walls 16. Steel cover plates 22 are inserted into this cover rebate 20 of the cable duct sections 12, closing off the open longitudinal side 18 of the cable duct sections 12. The cover plates 22 are screwed to the cable duct sections 12. In the areas between the charging stations 4, the cover plates 22 are additionally covered with a surface coating 23, e.g., made of rubber, which forms the visible surface of the cable duct 8 and is flush with the free-end (upper) edge of the side walls 16.

[0031] As especially from Fig. As can be seen from Figure 2, the cable duct sections 12 are laid recessed in the substrate 24 so that the open longitudinal side 18 is flush with the surface of the substrate 24. To fix them in the substrate 24, the cable duct sections 12 are embedded in a mortar bed 26 ( Fig. 2) set.

[0032] In the Fig. 1 and Fig. In the example shown in Figure 2, the cable duct sections 12 are laid in such a way that they form part of the edge border of the (e.g. paved, asphalted or concreted) parking area 6.

[0033] In alternative configurations, the cable duct sections 12 are laid such that they lie within the parking area 6, lie at a distance from the parking area 6 in or on the ground, form a raised curb (higher than the parking area 6), or lie parallel to such a raised curb. In principle, the cable duct sections 12 can also be laid on stilts at a distance above the ground 24.

[0034] In general, the one in the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. The embodiment of the device 2 shown in Figure 6 is particularly suitable for permanent and fixed installation of the device 2 on the paved parking area 6, especially when the device 2 is installed together with the construction of the parking area 6. Furthermore, this embodiment is also suitable for installing the device 2 on a substrate 24 that is inherently unstable or only conditionally stable, such as gravel, sand, or soil.

[0035] Each of the charging stations 4 will be according to Fig. 3 formed from a pile 28, which carries a charging station 30 at its upper end. The pile 28 is made from a base plate 32 ( Fig. 4, Fig. 5) and a vertical profile 34 welded to it, as well as a front panel 36 and a base panel 38. A cross-section of the vertical profile 34 is shown in Fig. 4. The front panel 36, the base panel 38, and the vertical profile 34 enclose a sealed cavity inside the pole 28, through which the power supply line and signal line to the charging station 30 are routed. The charging station 30 is preferably equipped with a permanently attached charging cable 39.

[0036] In the example according to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6. The charging stations 4 are not directly attached to the cable duct sections 12. Rather, each charging station 4 and the cable duct section 12 to which it is attached has a [missing information - likely a specific component or element] in the [missing information - likely a specific component or element]. Fig. 5 and Fig. 6 visible mounting bases 40 intermediate.

[0037] The mounting base 40 is formed by a base plate 42, from which three threaded studs 44 project parallel upwards. In the example according to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. The threaded studs 44 are screwed to the base plate 42. Each threaded stud 44 is fitted with a height-adjustable spacer 46. In the example shown... Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6 The spacers 46 are each formed by a collar nut (or alternatively by a nut and an associated washer) and can be screwed higher or lower on the associated threaded stud 44.

[0038] In the assembled state of the charging stations 4, the threaded studs 44 of the respective mounting base 40 extend through corresponding screw holes in the base plate 42 of the respective charging station 4. The charging station 4 is screwed to the three threaded studs 44 of the mounting base 40 with its base plate 42, so that the charging station 4 rests with its base plate 42 on the spacers 46.

[0039] The three threaded studs 44 of the mounting base 40 are arranged in a (particularly equilateral) triangle with respect to the position of their axes. By adjusting the height of the spacers 46 on the associated threaded studs 44, the charging station 4 can thus be adjusted in all directions with respect to both its height and its inclination.

[0040] The base plate 42 is screwed into elongated holes 48 of one of the cover plates 22. The elongated holes 48 are aligned longitudinally with the cover plate 22, so that the position of the mounting base 40 (and thus also the position of the associated charging station 4) can be adjusted longitudinally along the cable duct 8 during the assembly process.

[0041] The base plate 42 of the mounting base 40 and the base plate 32 of the associated charging station 4 are provided with openings that at least partially overlap with the elongated holes 48. The power supply cable and the signal cable from the cable duct 8 are inserted into the post 28 of the charging station 4 through these openings (as well as through the elongated holes 48).

[0042] The Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. Figure 12 shows a second embodiment of the charging device 2, which is particularly suitable for quick and easy (and especially temporary) installation on a stable surface, for example the previously asphalted or concreted parking area 6.

[0043] The charging device 2 according to Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. 12 again includes, by way of example, five charging stations 4, which are preferably identical to the charging stations 4 of the facility 2 from Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6 are trained.

[0044] Cable duct 8 is shown in the example according to Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. 12 cable duct sections 12 are composed of U-shaped steel profile sections. According to the U-shaped profile, the cable duct sections 12 are made of Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. 12 in turn, the base 14, the two side walls 16 and the open long side 18. However, the cable duct pieces 12 in the example are according to Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. 12 with the open long side 18 facing downwards on the substrate 24.

[0045] In the example according to Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. 12. The cable duct 8 runs continuously (and preferably also without interruption) under each of the charging stations 4 (see below). Fig. 8) However, the charging stations 4 are not supported by the cable duct 8. The cable duct sections 12 therefore have no load-bearing function. Rather, the charging stations 4 are screwed directly to the substrate 24 via their respective mounting bases 40, with the weight of each charging station 4 being supported, at least substantially, by the mounting base 40. The mounting base 40 is located within the cable duct 8. The base plate 42 of the mounting base 40 is screwed to three threaded rods 50, which are fixed directly into the substrate 24 – preferably by direct casting or alternatively by using dowels.

[0046] The base 14 of the cable duct section 12 lies according to Fig. 9 and Fig. 10 between the spacers 46 and the base plate 32 of the charging station 4. In the area of ​​each charging station 4, the base 14 of the cable duct section 12 is provided with holes through which the threaded pins 44 and, if applicable, the threaded rods 50 pass. Furthermore, the base 14 of the cable duct section 12 in the area of ​​the charging station 4 is provided with another opening through which the power supply cable and the signal cable from the cable duct 8 are inserted into the post 28 of the charging station 4.

[0047] In one variant of the charging device 2 according to Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. The cable duct sections 12 extend only between the charging stations 4, not underneath them. In this case, the cable duct 8 is formed by the respective charging station 4 itself in the area of ​​the charging stations 4.

[0048] In another variant of the charging device 2 according to Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. The cable duct sections 12 are wholly or partially inserted into a milled groove cut into the substrate 24. The cable duct 8 either does not protrude at all or only protrudes to a portion of the height of the cable duct sections 12 above the surface of the substrate 24, in particular above the parking area 6.

[0049] The invention has become particularly clear in the embodiments described above, but is by no means limited to these embodiments. Rather, further embodiments of the invention can be derived from the claims and the preceding description.

[0050] Unless otherwise described or illustrated, the second embodiment corresponds to device 2 from the Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. 12 of the first embodiment according to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6. Reference symbol list 2 Charging device 4 charging stations 6 parking spaces 8 cable duct 10 distribution stations 12 cable duct pieces 14 Floor 16 side wall 18 (open) long side 20 Cover fold 22 Cover plate 23 Top layer 24 Underground 26 mortar bed 28 stake 30 charging stations 32 Base plate 34 Vertical profile 36 Front fairing 38 Foot covering 39 charging cables 40 mounting bases 42 Base plate 44 Threaded pin 46 spacers 48 slotted holes 50 threaded rod

Claims

[1] Charging equipment (2) for charging electric vehicles - with at least one charging station (4) which has a charging cable (39) or a charging socket for connecting a charging cable, and - with at least one cable duct section (12) for guiding at least one power supply line to the or each charging station (4), wherein the or each cable duct section (12) has a U-shaped cross-section with an open longitudinal side (18), wherein the charging station (4) is mounted either adjacent to the cable duct section (12) on the substrate (24) or on the cable duct section (12) connected to the substrate (24). [2] Charging device (2) according to claim 1, comprising several charging stations (4) which are mounted in a row on the cable duct section (12) or several cable duct sections (12) laid flush next to each other. [3] Charging device (2) according to claim 1, comprising several charging columns (4) which are mounted in a row directly on the surface (24), wherein at least one cable duct section (12) is arranged between each pair of adjacent charging columns (4). [4] Charging device (2) according to one of claims 1 to 3, wherein the cable duct section or each cable duct section (12) is laid with the upwardly facing, open longitudinal side (18) on the substrate (24) or wholly or partially in the substrate (24). [5] Charging device (2) according to claim 4, wherein the cable duct section or sections (12) - within a paved, asphalted, concreted or gravelled parking area (6), in particular in a milled groove cut into an asphalted or concreted parking area (6), - as an edge border of a paved, asphalted, concreted or gravelled parking area (6), - at a distance from a paved, asphalted, concreted or gravelled parking area (6) in the ground, or - laid as a raised kerbstone or parallel to a raised kerbstone. [6] Charging device (2) according to claim 4 or 5, comprising at least one cover plate (22) for covering the open longitudinal side (18) of the at least one cable duct section (12). [7] Charging device (2) according to one of claims 1 to 3, wherein the cable duct section or each cable duct section (12) is laid with the downwardly facing, open longitudinal side (18) on the substrate (24) or wholly or partially in the substrate (24). [8] Charging device (2) according to one of claims 1 to 3, wherein the cable duct section or sections (12) are inserted into a milled groove in an asphalted or concreted parking area (6). [9] Charging device (2) according to any one of claims 1 to 8, wherein the or each cable duct section (12) is made of artificial stone, in particular concrete or brick, steel, in particular stainless steel, or cast iron. [10] Charging device (2) according to one of claims 1 to 9, with at least one mounting base (40) for direct or indirect fixing of each charging column (4) to the substrate (24). [11] Charging device (2) according to claim 9, wherein the mounting base (40) has a base plate (42) to which several, preferably exactly three arranged in a triangle, threaded studs (44) with height-adjustable spacers (46) are attached, wherein the charging column (4) is screwed to the threaded studs (44) so ​​that the charging column (4) rests on the spacers (46). [12] Charging device (2) according to claim 11, wherein the base plate (42) is screwed to the cable duct piece (12), the cover plate (22) which may rest on the cable duct piece (12), a stand resting on the substrate (24) or directly to the substrate (24). [13] Charging device (2) according to one of claims 6 to 12, wherein the cover plate (22) is provided with at least two elongated holes (48) extending in the longitudinal direction of the cover plate (22) for longitudinally adjustable screw fastening of the charging column (4) or the mounting base (40).

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