WO2019228677A1

WO2019228677A1 - Charging column for electric vehicles

Info

Publication number: WO2019228677A1
Application number: PCT/EP2019/052348
Authority: WO
Inventors: Stefan Helnerus; Christian Müller-Winterberg
Original assignee: Innogy Se
Priority date: 2018-05-30
Filing date: 2019-01-31
Publication date: 2019-12-05
Also published as: EP3804057A1; WO2019228677A9; DE102018112976A1

Abstract

The invention relates to a charging column for electric vehicles, comprising a charging column base and a charging column top, the charging column base being extruded and the charging column top being diecast.

Description

Charging station for electric vehicles

The subject relates to a charging station for electric vehicles.

The construction of the charging infrastructure is of crucial importance for the nationwide establishment of electromobility. For this purpose, it is necessary to install in public as well as in part public spaces charging stations for electric vehicles to a large extent. The charging stations should fit into the streetscape and are therefore usually designed as charging stations. Charging columns are characterized by a compact design with a small footprint. The charging stations are usually stela-like and have integrated or connectable charging electronics.

As mentioned, the extensive expansion of the charging infrastructure is a key factor in the acceptance of electromobility. Therefore charging stations must be installed as widely as possible and in large numbers in a short time. This is a challenge with regard to the design, construction and actual installation on site of the charging stations, since the mass use of the charging stations they must be produced on an industrial scale and particularly easy, preferably by a single person, should be installed on site.

This is only partially the case with previous charging stations. On the one hand, the on-site assembly is complex and expensive, on the other hand, the electronics in the charging stations can not be produced inexpensively and in large quantities. Against this background, the object was the object to provide a charging station for electric vehicles available, which is particularly inexpensive to produce in bulk. This object is achieved by a charging station according to claim 1. It has been recognized objectively that the housing of the charging station must be producible in a particularly simple and cost-effective industrial production process. On the other hand, however, all the requirements with regard to electrical safety as well as the insertion is to meet the streetscape. The housing must completely enclose the electrical components, which requires a housing cover. On the other hand, the charging station must be formed stolen, in order to keep the area consumption low. For this reason, it is proposed that the Ladesäulenfuß strand formed, in particular continuously or

is extruded and that the charging head is die-cast. In that

Continuous casting process for the charging column foot, it is possible to produce a tubular profile in a continuous process. After the profile has been cut to length, the charging column foot is almost finished mechanically and can subsequently be finished

For example, only a powder coating, a paint or other coating are supplied.

The lid of the housing is formed by the charging column head, which

diecast. Through the die-casting process, any shape of the lid can be made. By separating the manufacturing process from

Ladesäulenfuß and Ladesäulenkopf results on the one hand a cost-effective

Variant for the production of Ladesäulenfußes and on the other hand a high

Design freedom with regard to the design of the charging column head.

Preferably Ladesäulenfuß and Ladesäulenkopf are made of an aluminum material. Also, the use of a steel material is possible. Preferably Ladesäulenfuß and Ladesäulenkopf are made of the same metallic material.

As already mentioned, the charging column head is formed as a lid. It is proposed that the charging column head be lid-shaped with side walls

(Side surfaces and front surfaces) and an open bottom is. In the charging station head can be provided in at least one side wall a recess which is formed to receive a charging electronics. The receptacle can be arranged trough-shaped in a side wall of the charging column head and housed the charging electronics in a housing suitable for this purpose, receive trough-shaped.

The closed side walls lead to a circumferentially closed lid. Only the bottom-side opening corresponds in the mounted state with the interior of the charging column foot, so that a virtually free passage between the interior of the charging column foot and the interior of the charging column head is ensured. Through this passage, an electrical connection to be connected charging electronics can be ensured with a power supply network.

Preferably, the charging base is placed on a foundation. In this case, a connection cable with a power supply network through the inside of the charging column foot is guided from the foundation floor to the charging column head. In the charging column head, the charging electronics can be arranged in a recess, which is then used to connect the connecting cable to the power grid. Therefore Ladesäulenfuß and Ladesäulenkopf are initially free of electronic and electrical components in the assembled state and only lead the connection cable to a power grid.

According to one embodiment, it is proposed that an upper opening of the charging column foot in the mounted state of the charging station is aligned with an open bottom of the charging column head. The passage between the charging column head and the charging base foot thus formed allows the connecting cable to be guided as well as a supporting structure, which will be described below. The housing formed by the Ladesäulenfuß and the Ladesäulenkopf is preferably hollow and includes only the support structure and the connecting cable to a power grid. Other components that are not used to connect the charging base with charging column head on the one hand and charging column head with Support structure on the other hand, are not found inside the housing formed from Ladesäulenfuß and Ladesäulenkopf.

For mounting the housing, it is proposed that a support structure is arranged in the charging column foot, which extends from the lower end of the charging column foot to beyond the upper end of the charging column foot. This support structure is used for mechanical attachment of both the charging column foot and the charging column head to the ground foundation.

An independently inventive aspect relates to a charging station for electric vehicles with a charging base and a charging column head and a in the

Charging column foot guided support structure. This aspect can be combined with all features described and / or claimed here.

The support structure is preferably completely enclosed within the charging column base by the charging column foot. In cross section, the support structure is preferably within the side walls of the charging column foot.

The support structure has a cross-sectional profile, which for receiving a

Connection cable is suitable. The connection cable is guided in the cross-sectional profile of the support structure completely between the side walls of the support structure. The connecting cable is led through the foundation in the supporting structure. In the area of insertion and / or along the longitudinal axis of the

Support structure is the cable completely within a projection of the

Side walls of the supporting structure led to the ground foundation.

The cross-sectional profile of the support structure may be U-shaped, triangular, rectangular, square or otherwise polygonal, e.g. be hexagonal. Also, the cross-sectional profile of the support structure may be semicircular.

The fact that the connection cable is completely guided inside the supporting structure, it is protected from damage. Especially in the case of a violent When the charging station is bent over, the cable remains protected from the supporting structure.

Spaced outside and outside the charging station, the connection cable can still be electrically protected via a mains connection technology, in the event that it is damaged despite the protection by the supporting structure and causes a short circuit. Then the mains connection technology will electrically disconnect the cable

Supply network. e.g. disconnect via a fuse.

The supporting structure forms a ram protection for the cable guided in the charging station and at the same time the mechanical fixing of the housing of the charging station. The support structure extends longitudinally from the foundation to the

Charging stations head. Within the support structure, the cable is preferably guided from the mounting bracket into the charging column head and thereby protected by the supporting structure.

It is proposed that the charging column foot is fastened to the support structure only via the charging column head. The mechanical stability of the charging column foot is thus ensured exclusively via the charging column head. During assembly, the charging column foot is first slipped over the supporting structure. Subsequently, the charging column head is attached to the supporting structure and finally the charging base is connected to the charging column head, in particular with the

Ladesäulenkopf bolted. This assembly is possible by a single person. Ladesäulenkopf and Ladesäulenfuß are very light. Since they are initially free from

Charging electrics, the weight can be kept so low that a person can set up the charging station.

According to one exemplary embodiment, it is proposed that a circumferential annular space extend over the entire height of the charging column foot in the charging column foot. The annulus is between the supporting structure and the inner wall of the

Ladesäulenfußes formed. Other mechanical components are in the Charging column foot not available. Only at the bottom of the support structure, a mounting bracket may be provided which corresponds to a bottom opening of the Ladesäulenfußes.

As already explained, the charging column head is connected to the supporting structure. In this case, in particular a screw is conceivable. The charging column head is first connected to the supporting structure. Then the charging column foot is connected to the supporting structure via the charging column head. This structure makes it possible to set up the housing by only one person. First, the support structure is aligned on the foundation of the ground. Subsequently, only the loading column foot has to be slipped over the supporting structure and the head fastened to the supporting structure. In conclusion, the

Ladesäulenfuß mounted opposite the charging column head and is thus indirectly attached to the support structure. A separate alignment of the charging column foot is not necessary.

As already explained, an aluminum material can be used for the housing. It is proposed that the charging column foot is formed of extruded aluminum and / or that the charging column head is formed on die-cast aluminum. Continuous casting is suitable for simple, hollow profiles, as represented by the charging column foot. By die-casting the charging column head a design freedom is given, which is necessary to ensure, for example, recordings for a charging electronics.

The charging base has a tubular, octagonal cross-sectional profile. The long edges of the profile are provided with a chamfer, so that sharp edges are avoided.

On the bottom side, the charging column head also has a tubular cross-sectional profile adapted to the charging column foot. The cross-sectional profile of the charging column head is on the bottom side congruent to the cross-sectional profile of the Ladesäulenfußes. In order to close the charging column head, it is proposed that the side surfaces of the side walls of the charging column head starting from the open bottom

extend semicircular or elliptical towards an upper vertex.

Front surfaces are provided between the side surfaces, wherein at least one front surface of the charging column head has an opening for receiving charging technology. In the front surface, which has the opening or intake of charging technology is also closed.

Through the use of die casting, it is possible to produce various forms of Ladesäulenkopfes, each with the same Ladesäulenfuß

correspond. Thus, it is for example possible to widen the side surfaces, so that both in the first and in the second front surface an opening for receiving charging technology can be provided. Such a charging column head can also be plugged onto a physical Ladesäulenfuß.

The opening in the front surfaces is preferably trough-shaped and has a bottom or circumferential side walls which extend from the bottom to the front surface. The bottom separates the receptacle from the inside of the charging column head.

Only for the mechanical fixation of the charging column foot on the charging column head, passage openings (for example bores) can be provided. In addition, passageways may be provided in the sidewalls or the floor to lead a connection cable to a power supply network from the interior of the housing to the outside. In the opening then a charging electronics can be used, which is received by the opening.

To prevent disturbing on the outer lateral surface of the housing

Verprints or edges occur, it is proposed that a web is arranged on an end edge of the Ladesäulenfußes. This web preferably jumps back from the outer lateral surface of the charging column foot. At a bottom edge of the charging column head, a circumferential receptacle for the web can be arranged. This recording can be made from the inner surface of the charging column foot jump back. The outer surface of the stela remains flat. In the assembled state of the charging column head and charging column foot, the receptacle receives the web in such a way that it surrounds it circumferentially. Thus, only a circumferential seam between the charging column foot and the charging column head forms. The fact that the receptacle embraces the web, rainwater can not easily penetrate into the interior of the housing.

As already mentioned, the bridge can be defined by the inner lateral surface of the

Loading pillar foot jump back radially inward. It is also possible that the receptacle is aligned circumferentially with the outer surface of the Ladesäulenfußes. The receptacle may be a return on the inner circumferential surface of the charging column head.

For fastening the charging column foot to the charging column head, it is proposed that in the region of the web, radially inwardly pointing fastening bodies

are arranged and that radially inwardly facing fastening body are arranged in the region of the receptacle. The attachment body may be, for example, flanges through which through-holes for receiving screws are arranged. The mounting body engage in the assembled state in such a way that the Ladesäulenfuß is positively connected to the charging column head. It can be pulled by connecting the Ladesäulenfuß axially in the direction of the charging column head and thereby move relative to the support structure.

By this axial movement relative to the support structure whose position is fixed to the ground foundation, results in the assembled state that the

Ladesäulenfuß is by a fastening to the charging column head spaced from the ground foundation. This spacing ensures that even in the case of unevenness in the base foundation, the charging base foot can also be aligned in accordance with the preferably vertical orientation of the supporting structure

Foundation stands. It has also been recognized that a housing of the charging station can be mounted particularly easily on a concrete foundation if a supporting structure runs inside the housing. Due to the stele-like shape of the charging station, there are high torques in the area of the base-side attachment of the

Supporting structure. The supporting structure is fastened to a ground foundation via a fastening bracket. Due to the high forces that can occur, for example, up to 1500 Nm, the mounting bracket is exposed to heavy mechanical loads. In order to accommodate these loads, it is proposed that the mounting bracket is formed of a metal casting. The running within the charging station or the charging column housing

The supporting structure is fastened in the area of its floor via a fastening bracket with the foundation of the ground.

In order to avoid predetermined breaking points, it is proposed that the mounting bracket is firmly bonded to the supporting structure. It is preferred if the mounting bracket circumferentially cohesively connected to the support structure, in particular welded.

According to one embodiment, it is proposed that the support structure is a metal profile which extends from the attachment bracket into a head region of the charging column housing. The mounting bracket is the only one

mechanical connection between the charging column housing and the

Ground foundation. Here, in particular, a charging column head with the

Support structure connected and a charging base is indirectly over the

Ladesäulenkopf connected to the support structure.

According to one embodiment, it is proposed that the charging column housing is formed from a charging base foot and a charging column head. The charging column head preferably has in its interior a stop for the supporting structure. If the charging column head is placed on the supporting structure, then the stopper defines a maximum insertion depth of the supporting structure into the interior of the charging column head. Preferably, the stop is such that in this case an alignment between the charging column head and the support structure is such that the charging column head

can be connected directly to the support structure. In this case, it is possible, for example, for the load-bearing head to be mounted on the support structure as far as possible by mounting it on the supporting structure. At this moment, a passage opening in a wall of the

Ladesäulenkopfes with a through hole in the support structure, so that the charging column head attached to the support structure, in particular can be screwed.

The attachment between the charging column head and the supporting structure is preferably in the region of a receptacle (a recess) in a front surface of the charging column head. In this return the charging electronics can be used. The result is that the charging station in the mounted state has an outer, non-perforated lateral surface. Only a circumferential gap between the Ladesäulenfuß and the charging column head, as well as a gap between the receptacle for the charging electronics and the charging electronics is given. Otherwise, the housing is free from any mechanical damage. From the outside in the assembled state can not be seen how the housing is arranged on the ground foundation. The only fixation of the charging column head takes place on the support structure, and preferably in the area in which subsequently the charging electronics in the

Charging head is used. This has many advantages, including a so that an integrated anti-theft device is guaranteed.

According to one embodiment, it is proposed that the mounting bracket on at least one side wall, preferably two opposite one another

Having side walls radially outwardly directed spring elements, wherein the spring elements in the assembled state of the charging station on an inner wall of the

Charging column housing exert a spring force. The mounting bracket is located in the area of the ground foundation. The mounting bracket has a larger one Base area as the supporting structure. In particular, the mounting bracket has a base area which corresponds approximately to the cross section of the interior of the Ladesäulenfußes. The mounting bracket is preferably smaller in their edge dimensions, as the edge dimensions of the inner opening of the Ladesäulenfußes.

In the forming annular space between the mounting bracket and the inner wall of the Ladesäulenfußes engage the spring elements. For assembly, the mounting bracket is first aligned with the ground foundation. Then the charging column foot is slipped over the supporting structure and the mounting bracket.

In this case, the bottom-side opening of the Ladesäulenfußes on the

Fixing bracket with spring elements slipped. The spring elements are thereby tensioned, so that they exert a radially outwardly acting spring force on the Ladesäulenfuß in the region of the bottom. As a result, the charging base foot is mounted radially on the mounting bracket. A storage axially in the longitudinal direction of the support structure can then exclusively indirectly via the

Ladesäulenkopf done. Without the charging column head, the charging column foot is movable axially along the support structure and mounted radially to the support structure by the spring elements. After the charging column head has been fastened to the supporting structure, the charging column foot is fastened to the charging column head and is thus also mounted axially relative to the supporting structure.

According to one embodiment, it is proposed that the spring elements are U-shaped and point with their opening in the direction of a base foundation.

This ensures that when slipping the Ladesäulenfußes on the mounting bracket, the spring elements are aligned with the inner surface of the bottom opening of the Ladesäulenfußes and the Ladesäulenfuß is slipped over the spring elements without the bottom edge of the Ladesäulenfußes hooked in a spring element.

According to one embodiment, it is proposed that the mounting bracket has three receptacles for adjusting elements of a base foundation. This can fixing the mounting bracket to the ground foundation and placing the supporting structure arranged on the mounting bracket vertically.

The three control elements allow the mounting plane of the mounting bracket to be defined. Is this horizontal and the support structure perpendicular to the

Mounting bracket mounted, resulting from the orientation of the

Mounting bracket on the control elements in a horizontal vertical alignment of the support structure. Also this assembly can be done by a single person. The supporting structure is considerably lighter than the entire housing of the charging station. The mechanic has only the

Place mounting bracket together with supporting structure on the adjusting elements, align the fastening bracket with the aid of the adjusting elements and fix it to the adjusting elements. Subsequently, a vertical mounting of the Ladesäulenfußes and the charging column head can be done easily. In particular, the actuating elements are threaded rods. Also, the mounting bracket can be aligned with the adjusting elements relative to a ground foundation.

When using threaded rods, it is possible, for example, first to arrange nuts between the mounting bracket and the ground foundation, which are adjustable relative to the ground foundation along the threaded rod. This makes it possible to determine the mounting plane of the mounting bracket and in particular by adjusting the position of the nuts relative to the ground foundation the

Align mounting bracket in a horizontal direction. Then the mounting bracket between the first nuts and then on the

Threaded rods screwed second nuts are fixed in place. If the support structure is perpendicular to the mounting plane of the mounting bracket, this is therefore perpendicular and the installation of the charging station is subsequently particularly simple.

In order to ensure increased rigidity of the charging station, it is proposed that the supporting structure is at least partially formed as a U-profile. As a result, a high moment of inertia of the supporting structure is achieved with low material usage. The attachment bracket preferably has a passage for at least one power cable in a central region. This allows power cables through the

Center area of the mounting bracket of the ground foundation only

To carry supporting structures. Since the mechanical load is the lowest in the center region of the mounting bracket, the passage is preferably arranged there. The passage is preferably circumferentially encompassed by the mounting bracket. On the mounting bracket, the support structure is arranged. The support structure preferably surrounds with at least three walls

Passage. The power cable routed through the passage is then routed between three walls of the support structure to the charging column head. The fact that the passage is in the center region, the mounting bracket can be adapted over a large area on the inner cross section of the Ladesäulenfußes.

If two separate charging electronics are arranged in the charging column head, they can be supplied via a respective separate power cable. These two power cables can be routed through the base foundation and the passage to the inside of the charging column foot. Preferably, the two charging electronics on opposite front surfaces of the

Ladesäulenkopfes arranged.

To a particularly simple connection of the power cable to the

Charging column electronics to enable, it is proposed that the

Supporting structure has an opening in a side wall and that in an assembled state, at least one power cable is guided through the opening. The power cables are led through the passage and are enclosed on three sides by the supporting structure. The power cables are then along the

Support structure laid upwards, with a power cable is guided through the opening in the side wall. The power cables are then on two each other

opposite sides of the supporting structure and can from there to two opposing front surfaces or openings are guided within the front surfaces and connected there with charging electronics.

According to one embodiment, it is proposed that the fastening bracket is arranged in a mounted on the actuating element state at a distance from a base foundation. This makes it possible to align the mounting bracket in a horizontal, even if the ground foundation is not completely aligned horizontally.

The charging station includes a charging base and a charging station head. In that

Ladesäulenfuß runs a support structure. The support structure is in the area of the bottom of the charging column foot via a mounting bracket with a

Ground foundation to attach.

For a particularly simple installation, even by a single fitter, it is proposed that the charging column head is directly connected to the supporting structure and that the charging base foot via the charging column head with the

Support structure is connected. This means that an axial bearing of the

Ladesäulenfußes in a longitudinal axis of the support structure is done exclusively on the charging column head. Although it is possible that the Ladesäulenfuß is mounted on the bottom side radially on the mounting bracket, the axial storage without degree of freedom, however, takes place exclusively on the charging column head. A movement of the

Loading column foot relative to the support structure in a direction along the

Longitudinal axis of the support structure is prevented when mounting the charging column foot on the charging column head. The charging column head is connected to the supporting structure. About the charging column head is therefore the charging base with the

Support structure connected. Ladesäulenkopf and Ladesäulenfuß are preferably in two parts.

For attachment of the charging column foot to the charging column head fastening means are provided. The fastening means are preferably exclusively in the interior, the means disposed on the inner peripheral surface of the charging column foot and the charging column head. In particular, in the charging column head, the fastening means are provided in an opening of a front surface, which is provided for receiving a charging electronics. After the charging head has been connected to the charging base and the charging electronics has been inserted into the opening, the

Only remove the charging column head from the charging base when the charging electronics have been removed beforehand.

The fastening means are preferably such that the charging column foot is pulled axially through the fastening means in the longitudinal direction towards the charging column head and is movable relative to the supporting structure. After the support structure has been mounted on the ground foundation, the charging base is over the

Sliding support structure and then the charging column head at the

Support structure mechanically fixed. The charging column head is then mounted on the supporting structure without any degree of freedom. Is about the fasteners of

Ladesäulenfuß attached to the charging column head, while the Ladesäulenfuß is axially moved in the longitudinal direction of the support structure relative to the support structure towards the charging column head. This results in a gripping around a bottom opening of the charging column head to a head-side, circumferential ridge of the

Charging stations foot. The charging column head surrounds in the assembled state circumferentially the charging base, so that only a circumferential gap between the charging column head and Ladesäulenfuß is present. The fastening means are preferably arranged in the opening for receiving charging electronics, so that in the mounted state, no fastening means are visible from the outside.

In the charging column head, the fastening means may for example be mounted on a flange such that they are axially fixed. That is, when the charging head is connected to the supporting structure, the fastening means undergo a stop in one direction towards the ground foundation and are thus axially fixed. About this stop is the tightening force with which the Charging base is tightened to the charging column head, introduced into the charging column head.

By attaching the Ladesäulenfußes to the charging column head is the

Ladesäulenfuß raised relative to the mounting bracket and / or a ground foundation. Here, the Ladesäulenfuß is moved in a direction parallel to the longitudinal axis of the support structure in the direction of the charging column head.

When mounted, the charging base is connected to the supporting structure via the charging column head. Bodenseitig the Ladesäulenfußes storage of Ladesäulenfußes takes place on the mounting bracket of the support structure by outwardly directed spring elements. This results in a radially outwardly directed, resilient mounting of the charging column foot on the mounting bracket. The support structure protrudes from the mounting bracket through the charging column foot into the charging column head. In the area of the charging column head is the

Support structure connected to the charging column head. For this purpose, fastening means are provided for connecting the charging column head to the supporting structure. These fastening means are provided in particular in the region of an opening in a front side of the charging column head. In particular, the fastening means for

Screwing the charging column head provided on the support structure. The

Opening in a front side of the charging column head is preferably suitable for receiving charging electronics. In particular, the opening is trough-shaped with a bottom that springs back from the outer surface of the front side and in the

Essentially circumferential side walls, which cover the floor with the outside

Connecting lateral surface of the front, formed. The opening is preferably congruent with an outer peripheral surface of the charging electronics, which is inserted into the opening. Between an upper end of the support structure and the mounting bracket, the support structure is formed as a U-profile. As a result, a particularly high flexural rigidity of the support structure is achieved.

Ladesäulenkopf and Ladesäulenfuß are joined together in the assembled state. Here, the charging base foot engages in a bottom opening of the charging column head. There forms a contact surface between Ladesäulenfuß and Ladesäulenkopf. The contact surface is in particular by a mounted state

formed inside web of the Ladesäulenfußes, wherein the web at a

Inner wall of the charging column head rests in the region of the bottom-side opening.

This positive locking ensures at least a radial bearing of the charging column foot on the charging column head. Axial storage takes place through the

Fastening means, in particular a screwing of the charging column foot to the charging column head.

The charging column head is connected to the supporting structure. This connection is in particular such that the charging column head without degree of freedom at the

Support structure is connected.

The compound is preferably clamping, as it is particularly fault tolerant. By screwing a clamping element, so that it fixes the charging column head clamped to the support structure, the storage of the

Ladesäulenkopfes be realized on the support structure.

In order to keep the outer surface of the charging column housing free of fasteners, it is proposed that the attachment of the charging column head is provided on the support structure in the region of an opening for receiving a charging electronics. If the charging electronics are inserted into the receptacle, the

Fasteners can not be achieved without having to remove the charging electronics. For this it is suggested that in the opening for receiving the

Loading electronics is provided in the charging column head inner intermediate wall. This partition may, for example, the bottom of the opening or a

Be sidewall of the opening. The side wall is in the assembled state between the support structure and an opening in the lateral surface of the charging column head. This opening is preferably in a front side of the charging column head and congruent with an outer peripheral surface of a charging electrical system.

At the intermediate wall, a receptacle for a clamping element may be formed and the clamping element is clamped in the receptacle via fastening means engaging in the supporting structure. Thus, it is for example possible that the clamping element is screwed relative to the support structure and is thereby pressed with a clamping force against the intermediate wall, so that the intermediate wall between the clamping element and the supporting structure is clamped.

The Ladesäulenfuß is mounted radially fixed to the charging column head and through

Fasteners with a degree of freedom in the axial direction of the

Ladesäulenkopf stored. By embracing the Ladesäulenfußes by Ladesäulenkopf the Ladesäulenfuß is radially on the charging column head without

Degree of freedom stored. Are the fasteners tightened, the Ladesäulenfuß is stored without degree of freedom at the charging column head. The supporting structure is completely enclosed by the charging column head and the loading column foot. In this housing can in the area of the charging column head a receptacle for a

Be provided charging electronics.

This receptacle can be trough-like with a bottom and side walls. The receptacle is preferably provided in at least one front side, in particular a flat surfaces of the charging column head. It is possible that two or more receptacles are provided in flat side walls or front surfaces of the charging column head.

The article will be explained in more detail with reference to drawings showing an exemplary embodiments. In the drawing show: Fig. La, b views of a supporting structure;

2 shows a view of a supporting structure together with the charging column head and

Ladesäulenfuß;

Fig. 3a, b views of a mounting bracket;

Fig. 4 is a bottom opening of a Ladesäulenfußes velvet

Mounting bracket;

Fig. 5a, b, a support structure in an upper region together with clamping element for clamping a charging column head;

6a-c different views of a charging column head;

FIG. 7 shows a fastening of a charging column head to a charging column foot; FIG.

Fig. 8 is a contact surface between the charging column head and Ladesäulenfuß.

Fig. La shows a ground foundation 2. In the ground foundation 2 threaded rods 4 are embedded. At the threaded rods 4, a mounting bracket 6 is attached. At the mounting bracket 6, a support structure 8 is connected. The

Supporting structure 8 is in its longitudinal axis 8a perpendicular to a surface plane 6a of the mounting bracket 6. As can be seen in Fig. 1, the

Supporting structure 8 on a rear wall an opening 10. In an upper region of the support structure 8, a cross member 12 is provided with a bore 14.

The mounting bracket 6 is a metal casting, which is a particularly high

Has strength, so that the mounting bracket 6 by lateral forces 16

introduced torques can absorb particularly well. As can be seen in FIG. 1b, spring elements 18 are arranged on the attachment bracket. The spring elements 18 are on a side surface 6 b of

Mounting bracket 6 is arranged. In the mounting bracket 6 three receptacles 20 are provided for the threaded rods 4.

Further, a central region of the mounting bracket 6 is a passage 22 through which at least one power cable can be performed. It can also be seen in FIG. 1b that the supporting structure 8 has a U-shaped profile and surrounds the passage 22 with three side walls.

To install the charging station, the bottom foundation 2 with the

Threaded rods 4 poured and a power cable is guided from the ground foundation 2 in the plane defined by the threaded rods 4 surface to the outside.

Subsequently, the support structure 8 together with mounting bracket 6 is placed with the receptacles 20 on the threaded rods 4. About the threaded rods 4, the mounting bracket 6 can be aligned horizontally with its surface plane 6a. As a result, the longitudinal axis 8a is vertically aligned when it is perpendicular to the surface plane 6a. The attachment bracket 6 is fixed to the ground foundation 2 via the threaded rods 4. Subsequently, the power cable along the profile of the support structure 8 is guided to the cross member 12. An optionally second power cable is passed through the opening 10.

The support structure 8 is shown in Fig. Lc again in a view. It can be seen that the support structure as a U-profile of the

Mounting bracket 6 extends to the cross member 12. In the cross member 12, the bore 14. The receptacles 20 are arranged on the mounting bracket 20.

After the supporting structure 8 has been fixed to the ground foundation 2, a charging column foot 24 is slipped over the supporting structure 8, as shown in FIG. 2. Ladesäulenfuß 24 is tubular from a continuously cast or

extruded aluminum material. The loading column foot 24 is first deposited on the bottom foundation 22.

Subsequently, the charging column head 26 is placed on the support structure 8. It can be seen that the supporting structure 8 protrudes in a direction along the longitudinal axis 8a beyond the charging column foot 24 and protrudes into the charging column head 26.

In the charging column head 26 stops may be provided so that the

Ladesäulenkopf 26 is posted on the support structure 8.

The charging column head 26 forms a cover of the charging column head 26 and

Ladesäulenfuß 24 housing formed the charging station. It can be seen that only the support structure 8 together with the mounting bracket 6 is disposed within this housing. In addition, one or more power cables from the

Ground foundation 2 to be performed in the charging column head 26. Other electrical devices are not provided in the housing. This makes the assembly particularly simple, since only a mechanical assembly is necessary, which can be performed by a technician not electrically formed.

Figures 3a and b show the possibilities of a material connection between the mounting bracket 6, which is formed of a metal casting and the profile of the support structure 8. On the one hand, it is possible via mounting bracket 28 which both with the mounting bracket 6 and the support structure 8 via Welds is connected to connect the support structure 8 with the mounting bracket 6. It is also possible, the support structure 8 directly to the

Attach mounting bracket 6, as shown in FIG. 3b and provide a circumferential weld. In the assembled state, the charging column foot 24 is slipped over the attachment bracket 6. Fig. 4 shows an embodiment in which the mounting bracket 6 is aligned with the threaded rods 4 via respective nuts 4a.

First, the lower nuts 4a are screwed onto the threaded rods 4. Subsequently, the mounting bracket 6 is placed on the threaded rod 4. The mounting bracket 6 can be aligned over the lower nuts 4a so that their surface plane 6a is in the horizontal. Subsequently, the

Fixing bracket 6 is fixed on the threaded rods 4 via the upper nuts 4a.

After the charging base foot 24 has been slipped over the support structure 8, the charging base foot 24 is supported radially on the bottom side by the spring elements 18. The spring elements 18 exert radially outwardly acting spring forces 18a on the charging column foot 24, so that the charging column foot 24 opposite to the

Mounting bracket 6 is resiliently mounted in a floor area.

To attach the charging column head 26 to the support structure 8 has the

Supporting structure 8 in the region of the transverse spar 12 a bore 14. In this bore 14, as shown in Fig. 5a, a screw 28 are screwed. The screw 28 carries a clamping element 30, which can be moved by the screw 28 relative to the cross member 12.

In Fig. 5b it can be seen that the cross member 12, the U-shaped profile of

Supporting structure 8 circumferentially closes. The screw 28 may be completely guided through the entire depth of the support structure 8. With the help of the clamping element 30, the charging column head 26 can be mounted on the supporting structure 8, as shown in FIGS. 6a-c.

Fig. 6a shows a charging column head 26 in a side sectional view. Of the

Ladesäulenkopf 26 has front surfaces 26a and, as shown in Fig. 6b,

Side surfaces 26b. The side surfaces 26b extend from a bottom opening 32 of the

Ladesäulenkopfes 26 upwards and run in a radius towards each other and close the charging column head 26 upwards.

In the region of the bottom-side opening 32, a peripheral receptacle 32a is provided, which is set up to receive a head-side web of the charging column foot 24.

In Fig. 6a it can be seen that on at least one front side 26, an opening 34 is provided. The opening 34 is trough-shaped with a bottom 34 a and

Side walls 34b. The side walls 34b are preferably fixed, preferably formed integrally with the side walls 26b and the front surface 26a. This can be achieved in particular by die-casting the charging column head 26. By a corresponding die-casting mold, the charging column head 26 can be connected to the

form trough-shaped opening 34. The trough-shaped opening 34 serves for

Recording a charging electronics.

As can be seen in FIG. 6b, the circumference of the opening 34 can assume a partially elliptical shape. Any peripheral shapes are possible, so that the

Opening 34 may be adapted to the contour of an inserted into the opening 34 charging electronics.

In the area of one of the walls of the opening 34, here as can be seen in FIG. 6a, in the region of the bottom 34a, a passage 34c can be provided, through which the screw 28 can be guided. As can be seen in FIG. 6 b, a recess 36, which is congruent with the clamping element 30, is provided on the bottom 34 a.

To fix the charging column head 26 to the support structure 8, the screw 28 together with the clamping element 30 is inserted into the opening 34 and the clamping element 30th pressed against the recess 36 By further screwing the bottom 34a between the clamping member 30 and the cross member 12 of the support structure 8 is clamped. Thus, the charging column head 26 is fixedly mounted on the supporting structure 8.

6c it can be seen that the charging column head 26 can also have different shapes, in particular with two openings 34 ', 34 "arranged on opposite front surfaces 26a, thereby making it possible for two in a charging column head 26 to be independent of one another operated

To arrange charging electronics. The fixation of the charging column head 26 at the

However, supporting structure 8 takes place in the same way as described above, in particular only from one side.

For assembly, the fastening bracket 6 is first aligned with the ground foundation 2. Subsequently, the charging column foot 24 is slipped over the support structure 8. Then the charging column head 26 is placed on the support structure 8 and hereby screwed as described above. The charging column head 26 is now fixed relative to the supporting structure 8.

Subsequently, the charging column foot 24, as shown in FIG. 7, can be fixed to the charging column head 26 by screws 38 extending parallel to the longitudinal axis 8 a. For this purpose, two connecting flanges 38 'are provided in the opening 34, through which the screws 38 are guided. In the region of the charging column head 26 facing opening of the charging column foot 24 connecting flanges 42 may be provided in the charging column 24, which are suitable for receiving the screws 38.

With the help of the screws 38, which are supported by the connecting flange 38 ', the loading column foot 24 can be parallel to the longitudinal axis 8a in the direction of the

Moving the charging column head 26 and fixing it. Here, a frontally encircling web 40 of the charging column foot 24 slides, as shown in Fig. 7, in a receptacle 20 of the charging column head 26. Since the charging column head 26 relative to the support structure 8 by the clamping element 30 is fixed, an indirect fixation of the charging column foot 24 relative to the supporting structure 8 is made possible by the screws 38.

Characterized in that the web 40 slides into the receptacle 20, the housing, which is formed by Ladesäulenkopf 26 and Ladesäulenfuß 24, opposite eintretendem

Rainwater protected. The Ladesäulenfuß 24 is axially and radially fixed by the charging column head 26, thus by the screws 38 and the receptacle 20 in its upper region. On the bottom side, the charging base foot 24 is radially supported by the spring elements 18.

The housing thus formed can now be equipped with a charging electronics. However, the assembly of the housing can be carried out by a single person. This enormously facilitates the mass construction of charging infrastructure.

LIST OF REFERENCE NUMBERS

2 ground foundation

4 threaded rod

4a mother

6 mounting bracket

6a surface plane

6b side surface

8 supporting structure

8a longitudinal axis

10 opening

12 crossbar

14 hole

16 lateral force

18 spring element

20 recording

22 passage

24 charging base

26 Ladesäulenkopf

26a front surface

26b side surface

28 screw

30 clamping element

32.34 opening

34a floor

34b sidewalls

34c passage

36 return

38 screw

38 'connection flange 40 footbridge

42 flange

Claims

Patent claims

1. Charging station for electric vehicles with

a charging station foot and

a charging station head,

characterized,

that the charging column foot is extruded and

that the charging head is die-cast.

2. charging station according to claim 1,

characterized,

that the charging column foot is tubular.

3. charging station according to claim 1 or 2,

characterized,

that the charging column head is cap-shaped with side walls and an open bottom.

4. charging station according to one of the preceding claims,

characterized,

that an upper opening of the Ladeesulenfußes in the mounted state of the charging station is aligned with an open bottom of the charging column head.

5. charging station according to one of the preceding claims,

characterized,

in the charging column foot, a support structure extending from the lower end of the charging column foot to over the upper end of the charging column foot is arranged, and the charging base is fixed only on the charging column head to the support structure.

6. charging station according to one of the preceding claims,

characterized,

in the charging column foot, a circumferential annular space extends over the entire height of the charging column foot.

7. charging station according to one of the preceding claims,

characterized,

that the charging column head is connected to the supporting structure.

8. charging station according to one of the preceding claims,

characterized,

that the charging column foot is formed of aluminum inflexible casting and / or that the charging column head is made of aluminum diecasting.

9. charging station according to one of the preceding claims,

characterized,

that the charging base foot has a tubular, eight-sided cross-sectional profile au.

10. charging station according to one of the preceding claims,

characterized,

that the charging column head on the bottom side a tubular, octagonal

Has cross-sectional profile.

11. charging station according to one of the preceding claims,

characterized,

that the side surfaces of the charging column head extending from the open bottom semicircular or elliptical towards an upper vertex.

12. charging station according to one of the preceding claims,

characterized,

that a first front surface of the charging column head is closed and a second front surface of the charging column head has an opening for receiving charging technology.

13. charging station according to one of the preceding claims,

characterized,

that at a front edge of the Ladesäulenfußes a web is arranged and that a peripheral receptacle for the web is arranged on a bottom edge of the Ladesäulenkopfes and that in the mounted state, the receptacle surrounds the web circumferentially.

14. charging station according to one of the preceding claims,

characterized,

that the web of the outer lateral surface of the Ladesäulenfußes jumps back radially inwardly and that the receptacle circumferentially with the outer

The lateral surface of the charging column foot is aligned.

15. charging station according to one of the preceding claims,

characterized,

that in the region of the web radially inwardly facing fastening body are arranged, that in the region of the receiving radially inwardly facing fastening body are arranged and that the fastening body in the assembled state engage each other such that the Ladesäulenfuß is positively connected to the charging column head.

16. charging station according to one of the preceding claims,

characterized, the charging column foot is spaced from a ground foundation by attachment to the charging column head.