Charging apparatus for electric vehicles, arrangement, system, use and method

Abstract

The invention relates to a charging apparatus (2) for electric vehicles (100), comprising a pivoting arm (10), which has a plurality of longitudinal support sections (11, 12) and a free end (14), the plurality of longitudinal support sections (11, 12) being fixed to one another and provided for pivotable fastening to a supporting structure (T), for example a wall or a support of a building structure; a charging cable (40), which is guided by the pivoting arm (10) and via the free end (14) and which can be connected to an electric vehicle (100); and a device (50) which can be remotely controlled for pivoting the pivoting arm (10) about a pivot axis (X) to adjust the height of the free end (14).

Description

[0001] Charging device for electric vehicles, arrangement, system, use and procedure

[0002] The invention relates to a charging device for electric vehicles, the charging device comprising a charging cable that can be connected to an electric vehicle. The invention further relates to an arrangement, a system, a use, and a method related to a charging device.

[0003] It is well known that charging devices for electric vehicles are often stationary and inflexible. Such designs are regularly not universally suitable for the charging requirements of different vehicle types. Furthermore, they take up a lot of space. This leads to limitations in charging efficiency, user-friendliness, and space utilization, especially when electric vehicles are parked close together.

[0004] Based on this, one object of the invention is to provide space-saving, more user-friendly, and more efficient solutions for charging devices. The charging device should be easy to maintain, meet safety requirements, and allow for ergonomic cable routing. In particular, it aims to reduce or eliminate the disadvantages of known solutions.

[0005] This problem is solved by the subject matter of the independent patent claims. Preferred embodiments of the invention are specified in the dependent claims.

[0006] In particular, the task is solved by a charging device for electric vehicles. The charging device has a swivel arm with several longitudinal beam sections and a free end. The longitudinal beam sections are fixed or attached to one another and are designed or configured for pivotable mounting on a supporting structure. The charging device has a charging cable that runs over the swivel arm and the free end and can be connected to an electric vehicle, and a remotely controlled device for pivoting the swivel arm about a pivot axis to adjust the height of the free end. In other words, for example, the task is solved by an electric vehicle charging device that includes an arm with several interconnected beams. The beams can be attached to a building or structure.The arm can be mounted to a supporting structure of a building and / or pivotally attached to a stand, allowing for height adjustment of a cantilevered end. A charging cable is routed along the swivel arm and over the cantilevered end to connect an electric vehicle. The height adjustment can be remotely controlled.

[0007] The invention advantageously realizes the concept of creating a loading device that is structurally stable due to the longitudinal beam sections and space-saving and flexible thanks to the height adjustment via swiveling. Furthermore, remote control of the height adjustment is ergonomically advantageous and can minimize the time required for height adjustment.

[0008] The charging device is particularly easy to maintain thanks to its height adjustability. Furthermore, cable handling is simplified. The invention also improves safety. Potential risks during the charging of electric vehicles are reduced. For example, the likelihood of tripping over the charging cable is reduced, damage from running over the cable is less probable, and cable entrapment is less likely. A collision with the charging device is also less likely.

[0009] A charging device is generally understood to be a station or unit designed for connection to an electric vehicle for charging purposes. The charging device typically provides at least the charging cable, which may be attached, for example, to a support section or beam, a swivel arm, and / or a column. A mains connection may be provided to supply the charging device with the electricity required for charging. However, the mains connection is not typically part of the charging device itself. Preferably, the charging device can be connected to a mains connection or supply line on one side and to an electric vehicle on the other, in order to supply the electric vehicle with power from the mains connection. The charging device typically interacts with its surroundings, in which it is to be located or installed.For example, it may be stipulated that the charging device must be attached to a supporting structure of a building, such as a wall or a steel beam or girder of the building. For instance, a standard wallbox for electric vehicles must be attached to a supporting structure of a building, especially if it does not have its own stand.

[0010] The term "load-bearing structure" typically refers to a structural element, such as a wall, a masonry structure, a steel beam or girder, a visible beam, a column, or the like. The load-bearing structure is rigidly connected to other components of the structure, for example, by material and / or form-fitting connections, such as being embedded in masonry or concrete. The load-bearing structure typically follows a horizontal and / or vertical path relative to the substrate. It can originate from the substrate, be erected upon it, and / or be spaced apart from it. The structure is, for example, a building such as a house or a hall. The structure can also be a column and / or wall, particularly a freestanding one, or at least provide or consist essentially of the load-bearing structure.

[0011] The term "electric vehicle" generally refers to an electrified motor vehicle, particularly a commercial vehicle. An electric vehicle can be a hybrid, fully electric, or battery-electric vehicle. Preferably, the electric vehicle has a battery that can be charged by means of a charging device. The battery can have a usable capacity of at least 10 kWh, 25 kWh, 50 kWh, 75 kWh, 100 kWh, 200 kWh, 300 kWh, or more. The electric vehicle can be designed to receive charging power, and / or the charging device, in particular the charging cable, can be designed to transmit or provide a charging power of at least 2.5 kW, 7 kW, 20 kW, 40 kW, 80 kW, or more. Maximum values ​​of the usable capacity in kWh are specified below.The charging power in kW can be selected from the aforementioned values, for example, to define value ranges or maximum values. A maximum value can be useful to conserve resources by avoiding oversizing.

[0012] The swivel arm is typically a structure that is rigid at least in sections and / or elongated in at least one direction, preferably in two directions. It is possible that several or all support sections of the swivel arm, in particular longitudinal beam sections and / or transverse beam sections, are rigidly connected to one another. For example, the swivel arm may be a welded construction at least in sections. The swivel arm may also have sections that are bolted or detachably connected to one another.

[0013] The loading device can, preferably on the side of the supporting structure, have at least one bearing to provide the pivot axis. For example, the bearing is connected to the pivot arm on one side and to the supporting structure on the other. One bearing can be provided for each longitudinal beam section. The bearings can be spaced apart from each other along the pivot axis, for example by at least 0.5 m or at least 1 m or more. The bearings can be designed to pivot about the pivot axis. The pivot axis preferably runs horizontally or along a surface. The pivot axis preferably runs along the respective supporting structure to which the supporting structure is attached or is to be attached.Preferably, the loading device is arranged so that the swivel arm can be pivoted around the pivot axis by a swivel angle of at least 10° or at least 15° or at least 20° or more; in this respect, the free end can be adjusted in height.

[0014] The swivel arm typically has several longitudinal beam sections, a free end, and optionally, transverse beam sections. Longitudinal and transverse beam sections, if present, are preferably arranged transversely to one another and preferably fixed to each other in this arrangement, particularly rigidly. A longitudinal beam section or a transverse beam section can also be referred to as a beam section. For example, a beam section is a beam or a section of a beam or profile. Preferably, a beam section is made of or consists of metal. For example, a beam section is designed as a metal beam or metal profile, or as a section thereof. For example, the following metal profiles can be provided: T-profile, H-profile, L-profile, Z-profile, U-profile, rectangular / square profile, and / or round profile. For example, a beam section is hollow and / or has an angular cross-section, preferably square or rectangular.The beam is rectangular in shape. Suitable metals include, for example, steel and / or aluminum. The swivel arm, particularly the beam sections, may be galvanized. Typically, a beam section is elongated in one direction. Beam sections can be joined together by material bonding and / or form-fitting, for example, by welding and / or bolting.

[0015] Preferably, at least one of the multiple longitudinal beam sections forms the free end; for example, a second longitudinal beam section can form the free end. The multiple longitudinal beam sections can run at least substantially along one direction between the pivot axis and the free end. The free end can be understood, for example, as one of the beam sections cantilevering freely or ending in a free-floating position, for example, to route the charging cable to the electric vehicle. In particular, the pivot arm extends from the pivot axis to the free end.

[0016] The charging cable is, for example, a standard cable for connecting to electric vehicles. The charging cable is typically designed for AC charging (charging with alternating current) and / or DC charging (charging with direct current). The charging cable has, for example, at least two conductors, such as copper wires or stranded copper, for transmitting charging power and preferably at least one conductor for data transmission. The charging cable may have a charging plug for connecting to an electric vehicle. The charging cable may be designed to transmit a charging power of at least 2.5 kW, 7 kW, 20 kW, 40 kW, 80 kW, or more. A maximum charging power value in kW can also be selected from the aforementioned values, for example, to define a range or a maximum charging power value. A maximum value can be useful to conserve resources by avoiding oversizing.The charging cable can be connected to, or already connected to, a connection device or wallbox of the charging system. The device is designed or configured to swivel the arm. The device is remotely controllable. For example, the device has an electric motor that can be remotely controlled and swivel the arm around its axis. For example, the device has a winch and / or a lifting cylinder. The device can be remotely controlled via cable or wirelessly. A remote control may be provided for remotely controlling the device.

[0017] The swivel arm, particularly its free end, can be adjusted in height by pivoting. Provided the pivot axis is essentially parallel and vertically spaced from a surface, pivoting can be used to adjust the distance between the free end and the surface, or to rest the free end on the surface. By pivoting, the arm can bring the free end close to an electric vehicle, for example, next to it, to guide a section of the charging cable extending from the free end to the vehicle. The swivel arm, and optionally the charging cable, can also be swung out of the way to save space. For example, an electric vehicle can then drive under the charging device.

[0018] The swivel mechanism can pivot the swivel arm, in particular into at least two swivel positions, for example, a maintenance position, a charging position, and / or a standby position. The swiveling can be manual and / or stepless. The maintenance position can bring the free end to the height of an electric vehicle, for example, below 2 m, or substantially to the ground or ground level. In the maintenance position, the charging device can best be serviced from the ground, for example, to change the charging cable or similar tasks. The charging position can bring the swivel arm into a substantially horizontal position, for example, in which the charging cable extends from the free end essentially to the ground to allow the charging cable to be plugged into an electric vehicle. The standby position can bring the swivel arm into a substantially horizontal position and / or with the free end pointing upwards.In standby mode, the charging cable can be positioned at a distance from the surface, particularly above the electric vehicle, or the free end of the charging cable can extend directly to the surface or be positioned at a distance from it. The standby position can be the highest swivel position, and the maintenance position can be the lowest swivel position. The charging position can be located between the maintenance position and the standby position.

[0019] Alternatively or additionally, the swivel arm can be designed to taper from the pivot axis towards the free end. For example, the swivel arm is wider and therefore usually more stable in the area of ​​the pivot axis than in the area of ​​the free end. It is particularly possible that two of the multiple longitudinal beam sections, or the first longitudinal beam sections, are arranged at an angle or perpendicular to each other. For example, two first longitudinal beam sections are arranged at an angle or perpendicular to each other. The first longitudinal beam sections can converge towards the free end or be arranged in a tapered manner. The swivel arm can, for example, taper by at least 10% or become narrower by at least 10% from the pivot axis to the free end.It was recognized that the swivel arm is subject to higher loads near the pivot axis and lower loads near the free end, so a tapered design is typically advantageous and saves material. These loads usually arise from tensile force on the charging cable, air movement, or the swiveling motion itself. Compared to a consistently wide design, such a tapered design reduces the weight of the swivel arm and makes swiveling easier, which can also reduce the load on the supporting structure. This may allow for a longer cantilevered length of the swivel arm.

[0020] Alternatively or additionally, it can be provided that the multiple longitudinal beam sections have two or more first longitudinal beam sections. The multiple longitudinal beam sections, in particular the first longitudinal beam sections, or in short: the multiple / first longitudinal beam sections, can point towards the pivot axis, can intersect the pivot axis, and / or can terminate in the pivot axis. For example, the multiple / first longitudinal beam sections are each provided with or connected to a bearing defining the pivot axis in the region of the pivot axis. The multiple / first longitudinal beam sections can intersect the pivot axis and / or terminate in the pivot axis or be provided with / connected to the bearing at opposite points along the pivot axis from the free end. In this respect, the multiple / first longitudinal beam sections can intersect the pivot axis at two points spaced apart from each other along the pivot axis.The pivot axis is used to improve the stability of the loading device. This helps to make the loading device more space-saving and easier to deploy using less material.

[0021] To save space and / or materials, the multiple / first longitudinal beam sections and optionally further beam sections, e.g., longitudinal and / or transverse beam sections, can be arranged, preferably at least substantially, in a common plane. For example, the underside of the swivel arm, typically excluding the charging cable, extends substantially in one plane, allowing an electric vehicle to move safely underneath it. The swivel arm can have a crossing area where multiple beam sections are connected or can intersect. The multiple / first longitudinal beam sections can be connected to each other in this crossing area. The crossing area is located, for example, between the free end and the pivot axis.The intersection area can have at least one reinforcing plate to which two or more of the multiple longitudinal beam sections can be attached, for example by bolting and / or welding. The intersection area can be located closer to the free end than to the pivot axis.

[0022] Alternatively or additionally, the multiple longitudinal beam sections may include a further longitudinal beam section, preferably one that can be connected to the first longitudinal beam sections, particularly in the intersection area. This further longitudinal beam section can provide the free end. The multiple longitudinal beam sections, especially the first longitudinal beam sections and the further longitudinal beam section, can run at least substantially in or along a common plane and / or be arranged in a Y-shape. In the Y-shape, the first longitudinal beam sections can form the two legs or arms of the Y, and the further longitudinal beam section can form the stem or trunk of the Y. The legs of the Y are, for example, provided at their otherwise free ends to be attached in order to pivot about the pivot axis and to allow the stem of the Y to cantilever freely.Essentially, the additional longitudinal beam section can be held in place by the first two longitudinal beam sections, allowing the free end to cantilever as far as possible from the pivot axis. This makes the free end particularly narrow and space-saving. This further increases stability and optimizes load distribution. Even with forces acting primarily horizontally at the free end, i.e., along the pivot axis, for example, due to tension on the charging cable, the structure remains stable despite the large distance between the free end and the pivot axis.

[0023] It is possible for the further longitudinal beam section to form a line of symmetry for the swivel arm, to which the first longitudinal beam sections are arranged at an angle and / or opposite each other. The line of symmetry can run from the free end to the pivot axis, in particular intersecting the pivot axis approximately in the middle and / or lying approximately midway between the first longitudinal beam sections. This arrangement improves the stability and increases the load-bearing capacity of the swivel arm, especially in a uniform manner. It also simplifies manufacturing.

[0024] Alternatively or additionally, the first longitudinal beam sections may be connected to each other by means of at least one crossbeam section of the pivot arm. Typically, two, three, or more crossbeam sections are provided, preferably arranged at least substantially parallel to each other and spaced apart. The multiple longitudinal beam sections and the at least one crossbeam section, preferably all beam sections, may be connected to each other, particularly rigidly, and / or arranged at least substantially in one or more common planes. Typically, the at least one crossbeam section is arranged at least substantially along a transverse direction, and the longitudinal beam sections are arranged at least substantially along a longitudinal direction. Longitudinal and transverse beam sections are usually arranged transversely, and optionally perpendicularly, to each other.For example, the beams are connected to each other, preferably by bolting and / or welding. At least one crossbeam section can have a thinner material than the longitudinal beam sections and / or lower bending stiffness. In this respect, resources can be saved.

[0025] Alternatively or additionally, the remotely controlled device may include a winch. The winch may be fixed to the swivel arm. The winch, and in particular its cable, may be designed or configured for attachment to the support structure or another support structure. The winch may be electrically driven or have an electric motor. The winch may be designed to receive commands from a remote control and to execute these commands to swivel the arm. For example, the winch may use a rotating winch to wind and unwind the cable, in particular to raise or lower the swivel arm and to adjust the height of the free end. The winch may have an electromechanical brake. The brake may slow the winch and / or lock it in place. Such an arrangement allows for precise height adjustment and safe operation.

[0026] Alternatively or additionally, the winch can be provided that, on the one hand, it is fixed or fastened between its free end and the pivot axis, preferably between the intersection area and the pivot axis and / or preferably at the first longitudinal beam, and, on the other hand, preferably is provided or configured for attachment above the pivot axis. For example, the winch or one end of the winch cable can be provided for attachment above the pivot axis, for example, to the supporting structure or to another supporting structure. By way of example, a rotatable winch, for example, a motorized and preferably braked drum for winding a cable, is located on the pivot arm. One end of the winch cable can be provided / configured for attachment above the pivot axis; a reverse arrangement, i.e.,It is also possible to position the cable with its end on the swivel arm and the motor on the side of the support structure. This arrangement increases the efficiency of power transmission and ensures stable positioning.

[0027] The loading device may have at least one mechanical safety device. This mechanical safety device may, particularly when a load limit is exceeded, yield, dampen, break, and / or be destroyed in order to release and / or catch a part of the loading device, especially the swivel arm, away from the pivot axis in an overload situation. The safety device may provide a connection between the swivel arm, especially a superstructure, and a supporting structure. In particular, the safety device may be a safety cable and / or a damped cable. The safety cable may prevent the swivel arm from falling, for example, if the cable breaks or similar. The damped cable may dampen movement of the swivel arm. It is also possible to provide a predetermined breaking point in the swivel arm. For example, the further longitudinal beam section in the intersection area, e.g.,The locking device must be rotatably connected to the longitudinal beam sections parallel to the pivot axis, in particular wherein the locking device is designed as an anti-rotation device that yields or breaks when a certain torque is exceeded as the load limit. For example, a locking device can be integrated into the charging device assembly, for example in the form of a tension element with a predetermined breaking point, in order to release part of the pivot arm in case of overload. For example, the locking device can yield or break if a tensile force of 1000 N, 2000 N, 3000 N, 4000 N or more is applied to the free end via the charging cable.

[0028] Alternatively or additionally, the design may stipulate that no cable reel is provided on the swivel arm. A cable reel is understood to be a device for winding and unwinding a power or charging cable; this should not be integrated into the swivel arm and / or should not swivel with it. The charging device may include a remote control, particularly for operating the remote-controlled height adjustment mechanism of the free end. Swiveling the arm becomes comparatively easy by explicitly omitting a cable reel or winding / unwinding device that would otherwise swivel with it. This simplifies operation and reduces the system's complexity.

[0029] The remote control can be located separately from the charging cable and / or the remotely controllable device. The remote control can communicate wirelessly or via a wired connection with the remotely controllable device. The remote control can also provide an emergency stop switch for the charging device, in particular the remotely controllable device and / or the connection device.

[0030] It is possible for the remotely controllable device to be operated via an app on an end device, such as a smartphone or tablet; in principle, the end device can then provide the remote control. For example, the remotely controllable device can communicate with the remote control or the end device via Bluetooth, Wi-Fi, and / or another communication method. The end device is separate from the charging device or not part of the device and can, for example, control multiple charging devices and / or other devices. In particular, the remote control and / or the end device providing the remote control is battery-powered.

[0031] It is possible that a remote control is provided for controlling several or all charging devices, particularly in the case of an arrangement or system, for example, a universal remote control, especially an app on an end device. In this respect, several or all charging devices can be accessed via a smartphone or tablet as a kind of master remote control.

[0032] It is possible that each charging device has its own remote control, for example, a permanently assigned remote control.

[0033] In particular, it is possible that both a permanently assigned remote control and a remote control for remotely controlling several or all charging devices are provided, thus in principle a redundant selection of remote controls.

[0034] Alternatively or additionally, a connection device for connecting, in particular a plug connection, to the charging cable, or several connection devices, for example two, for connecting or plugging into the charging cable or multiple charging cables, may be provided. The swivel arm may be equipped with the connection device(s). The connection device may have a socket for plugging in the charging cable, in particular multiple sockets for plugging in multiple charging cables. The connection device may be designed for the fixed connection of the charging cable, for example, by having terminals and / or a cable gland. The swivel arm may be equipped with the connection device, or the connection device may be connected to the swivel arm. The connection device may be a junction box or...This refers to a wallbox, in particular one designed for connecting and / or plugging in the charging cable. The connection device can be attached to the swivel arm. The connection device may include a rectifier. An electrical supply line or mains connection leads to the connection device, enabling it to provide electrical energy from the supply line, particularly in the form of alternating current and / or direct current. In other words, the supply line can be connected to the charging cable via the connection device, either detachably or pluggably, or permanently.

[0035] For example, the connection device, in particular a socket of the connection device, is located on the swivel arm, in particular between the free end and the swivel axis, in particular into which socket the charging cable can be plugged on the one hand, in order to be led to the electric vehicle on the other.

[0036] The connection device, socket, or cable gland for the charging cable can point towards the free end and / or perpendicular to the pivot axis. The socket can point lengthwise to the pivot axis and / or perpendicular to the free end. For example, two sockets pointing away from each other can be provided on the pivot arm. The position of the connection device, socket(s), and / or cable gland(s) relative to the pivot arm can be adjusted. In particular, the position of the connection device can vary, for example, to charge electric vehicles at the front, on a side, or at the rear. For example, the connection device can be rotatable relative to the pivot arm. The position of the connection device can be flexibly changed, for example, depending on the location of the electric vehicle's charging point (front, side, rear, etc.).This allows for a flexible response to different electric vehicles.

[0037] Several charging cables can extend from the connection device(s), particularly from the free end, to allow charging of multiple electric vehicles, for example, two. The insertion direction can be along the longitudinal beam sections, particularly along the further longitudinal beam section and / or the free end, and / or towards the free end and / or transverse to the pivot axis. The insertion direction can be transverse to the longitudinal beam sections and / or transverse to the free end and / or along the pivot axis. A connection or plug connection between the connection device and the charging cable can be released by tensile force, particularly essentially in the insertion direction. For example, a tensile force required to release the connection or plug connection is at least 30 N, at least 40 N, or at least 50 N or more.

[0038] It is possible that the fastening of the connecting device to the swivel arm is designed so that it detaches and / or breaks under a longitudinal tensile force of 500 N, 1000 N, 1500 N, 2000 N or more, in order to release the connecting device and prevent further damage to the charging device or the electric vehicle, or even the swivel arm falling. It is also conceivable that the charging cable is designed so that it breaks at a predetermined breaking point under a tensile force of 500 N, 1000 N, 1500 N, 2000 N or more.

[0039] The charging cable can be deflected at its free end, particularly in a longitudinally flexible manner. A guide for the charging cable can be provided at the free end, which, for example, can deflect the charging cable vertically from the free end. The guide can be designed to prevent chafing and / or kinking of the charging cable. The guide can, for example, be made of a smooth plastic such as PTFE or have a smooth coating. The aforementioned features improve flexibility, facilitate connection, and increase safety.

[0040] Alternatively or additionally, the swivel arm can be provided for mounting at a height of at least 2 m and / or up to 8 m. Preferably, mounting at a height of 4 m ± 1 m or 5 m ± 1 m is provided. In particular, the pivot axis is located at this height. The height typically refers to a distance from the ground that is at least substantially vertical. The swivel arm can have a length of at least 5 m and / or up to 15 m. Preferably, a length of 8 m ± 4 m, 9 m ± 4 m, 10 m ± 4 m, or 11 m ± 4 m is provided. In particular, the length is to be measured from the pivot axis to the free end. Depending on the pivot position or angle of the swivel arm, the length runs either along the ground or parallel to it. This allows the loading device to be used with various vehicle types and in different locations.Typically, the position of a charging socket or outlet, also referred to as the charging point on an electric vehicle, for plugging in the charging cable on electric vehicles is not standardized.

[0041] Furthermore, an arrangement with or consisting of several charging devices is proposed, wherein at least some or all of the several charging devices are arranged or are to be arranged side by side and / or with substantially coaxially aligned pivot axes, in particular to form a common pivot axis. Alternatively or additionally, at least some or all of the several charging devices are arranged or are to be arranged opposite each other or with their free ends pointing towards each other or away from each other and / or with substantially parallel pivot axes. In this respect, charging devices can be arranged side by side for parallel, preferably coaxial, pivoting and enable space-saving charging of electric vehicles.

[0042] In particular, the problem is solved by a system comprising a support structure and at least one charging device attached to the support structure. The system can include the arrangement described herein. The charging device can be the one described herein. The system can include a structure that forms or provides the support structure. The system or the structure can provide the ground, the ground preferably running at least substantially parallel to the pivot axis. The system can include several charging devices, which are in particular attached to the same support structure and / or are designed to pivot about a common pivot axis, in particular to connect or charge adjacent electric vehicles. It is possible for the charging devices to be attached to several / different support structures.For example, charging devices are arranged above parking spaces for electric vehicles to be charged, so that they can be swiveled from above towards and away from the parking spaces. In particular, it is conceivable that a charging device is arranged such that its free end is positioned essentially above the edge of a respective parking space, so that it can be swiveled next to an electric vehicle or between two electric vehicles. Furthermore, the use of a charging device for an electric vehicle or for charging the electric vehicle is proposed, especially where the electric vehicle is designed as a commercial vehicle. The use can relate in particular to the arrangement or the system. The charging device can be attached to a supporting structure of a building. The supporting structure can be a wall or a beam of the building. The use can be with the same or similar features as the charging device or the system.The system or arrangement should be designed advantageously.

[0043] Furthermore, a method for pivoting a swivel arm of a loading device is proposed. The method may relate in particular to the arrangement or the system. The remotely controlled device can be actuated by means of a remote control to pivot the swivel arm about a pivot axis. By pivoting, the height of the free end of the swivel arm can be adjusted. The remote control can send a control command to the device, in particular to a winch of the device, preferably wirelessly or via a cable. It is possible to select from at least two, three, or more pivot positions. It is possible for the swivel arm to be pivoted manually and / or continuously.

[0044] In the context of revelation, the abbreviation "bzw." stands for "respectively" and is intended, for example, to indicate alternative, essentially equivalent and / or synonymous characteristics, ideas, or concepts in order to clarify the idea or meaning of a particular use of a characteristic or concept. "Respectively" and "or" can each be replaced with "and / or".

[0045] The invention will now be explained in more detail with reference to the drawings and a preferred embodiment.

[0046] The drawings show

[0047] Fig. 1 shows a system with a support structure and a loading device attached to the support structure and having a swivel arm, wherein the loading device is shown in various swivel positions.

[0048] Fig. 2 shows a system with several supporting structures and one attached to the several

[0049] Support structures attached to the charging device, wherein the electric vehicles to be charged are arranged below the charging device,

[0050] Fig. 3 shows the system from Fig. 2, wherein the loading device is pivoted towards the ground, and

[0051] Fig. 4A-E further views of the system from Fig. 2, and

[0052] Fig. 5 shows an overall view of the system from Fig. 2.

[0053] Figure 1 shows a system 1 comprising a support structure T and a loading device 2 attached to the support structure T. The support structure T extends at least substantially vertically from a base U and is, for example, a wall or a beam, particularly a steel beam, of a building. The building is formed, for example, by the support structure T. The building can be part of the system 1.

[0054] In Fig. 2 another system 1 is shown, which is very similar to the one in Fig. 1, so that the description to Fig. 1 is basically analogous.

[0055] Referring to Fig. 1, it can be seen that on the surface U there is an electric vehicle 100 to be charged, which is a commercial vehicle, for example with a permissible payload of at least 500 kg or at least 1000 kg or at least 1500 kg.

[0056] The electric vehicle 100 is battery-electric powered. The battery of the

[0057] The electric vehicle 100 has a usable capacity of at least 10 kWh.

[0058] The charging device 2 can be pivoted about a pivot axis X to adjust the height of a free end 14 of the charging device 2. Several charging devices 2 can be attached to the support structure T and, in particular, can be provided as a common pivot axis X for pivoting about the pivot axis X in order to connect adjacent parked electric vehicles 100 to the charging devices 2; see also Fig. 4 and Fig. 5 as views of Fig. 2.

[0059] The loading device 2 has a swivel arm 10 with several longitudinal beam sections 11, 12 and the free end 14. The several longitudinal beam sections 11, 12 are fixed to one another and are designed for pivotable attachment to the support structure T or are attached to it.

[0060] The charging device 2 has a charging cable 40, which is guided over the swivel arm 10 and over the free end 14, and which can be connected to an electric vehicle 100. The charging cable 40 is flexible and can transmit a charging power of at least 2.5 kW, for example by means of direct current (DC) or alternating current (AC).

[0061] In Fig. 1, the charging cable 40 is simplified to appear as projecting perpendicularly from the swivel arm 10 in various pivot positions of the charging device 2, whereby the charging cable 40 can also be brought into other positions without damage due to its flexibility.

[0062] The loading device 2 has a remotely controllable device 50 for pivoting the swivel arm 10 about the pivot axis X for adjusting the height of the free end 14.

[0063] In particular, the swivel arm 10, in this case together with the charging cable 40 and the remotely controlled device 50, can be pivoted about the swivel axis X.

[0064] The swivel arm 10 tapers from the pivot axis X towards the free end 14, see also Fig. 2, Fig. 3, Fig. 4 and Fig. 5.

[0065] The multiple longitudinal beam sections 11, 12 have two first longitudinal beam sections 11 arranged in a common plane, which point towards the pivot axis X and essentially intersect the pivot axis X. Bearings 21 are provided connected to the first longitudinal beam sections 11 and the support structure T, which define the pivot axis X and enable low-friction pivoting or pivotable attachment of the pivot arm 10 to the support structure T.

[0066] The several longitudinal beam sections 11, 12 are connected to each other at least in a crossing area 16 located between the free end 14 and the pivot axis X.

[0067] The multiple longitudinal beam sections 11, 12 have a further longitudinal beam section 12 connected to the first longitudinal beam sections 11 in the intersection area 16, which provides the free end 14. The first longitudinal beam sections 11 and the further longitudinal beam section 12 run along the common plane and are arranged in a Y-shape.

[0068] The first longitudinal beam sections 11 are connected to each other by means of at least one crossbeam section 13 of the swivel arm 10. The multiple longitudinal beam sections 11, 12 and the at least one crossbeam section 13 are rigidly connected to each other.

[0069] The remotely controlled device 50 has a winch 51 which is fixed to the swivel arm 10 and which is attached to the support structure T, see also Fig. 4D.

[0070] The winch 51 is, in particular on the one hand, fixed to the swivel arm 10 between the free end 14 and the pivot axis X, preferably between the intersection area 16 and the pivot axis X or at the first longitudinal beam sections 11. The winch 51 is furthermore, in particular on the other hand, provided for mounting above a pivot axis X or attached to the support structure T or a further support structure T2.

[0071] The winch 51 is arranged on a structure 30 on the swivel arm 10. The winch 51 is attached to the structure 30, for example, to a crossbeam of the structure 30. The crossbeam of the structure 30 is fixed to the swivel arm 10 by supports of the structure 30. In this case, the structure 30 is further secured by tension cables stretched between the swivel arm 10 and the structure 30, see also Fig. 4D. In particular, a cable 54 of the winch 51 is attached to the supporting structure T at a connection point 56 at a height 58. The height 58 is, for example, at least twice the height 22 of the swivel axis X.

[0072] The winch 51 has an electric motor that can rotate a drum that winds up or unwinds the rope 54.

[0073] The 51 winch features an electromechanical brake that brakes or locks the drum when stationary and / or to bring it to a standstill. When the brake is de-energized, it is normally closed to lock the drum.

[0074] In this case, no cable drum is provided on the swivel arm 10. The loading device 2 includes, by way of example, a remote control 52 for controlling the remotely controllable device 50 for adjusting the height of the free end 14. The remote control 52 is configured to send a swivel command to the remotely controllable device 50, which the latter can then execute. For example, the remote control 52 is a remote control device, such as a wireless or wired remote control. The remote control 52 can communicate wirelessly or via cable with the device 50 or the winch 51. The remote control 52 is, for example, battery-operated.

[0075] For example, the remote control 52 is arranged on the support structure T and / or separately from the remaining parts of the charging device 1. For example, a holder for the remote control 52 can be provided, for instance, wherein the holder is provided on the support structure T and / or wherein the remote control 52 can be selectively removed from the holder, regardless of whether the remote control 52 operates wirelessly or via a cable. In Fig. 3, the remote control 52 is detachably held on the support structure T and can be removed manually, particularly when it is being operated.

[0076] For example, the remote control 52 is magnetic in order to be detachably held on a metal support, in particular the support structure T.

[0077] The remote control 52 can have several control buttons to operate at least the remotely controllable device 50, see Fig. 3. The remote control 52 can have a control button for swiveling upwards and a control button for swiveling downwards.

[0078] The remote control 52 may have a main switch or emergency stop switch that can switch off the remotely controllable device 50 and / or a connecting device 18.

[0079] The remote control 52 may have an on / off switch to turn the remote control 52 itself on and off.

[0080] The swivel arm 10 is equipped with a connection device 18 for connecting, in particular plugging, the charging cable 40. The connection device 18 is essentially designed as a wallbox and has a socket into which charging cables 40 can be plugged in along a plug direction 20, see also Fig. 3 and Fig. 4. The plug direction 20 is oriented at an angle to the free end 14, for example to facilitate plugging in and / or to accommodate an angle in the charging plug of the charging cable 40.

[0081] It is also possible that the connecting device 18 is permanently connected to the charging cable 40, for example, where the charging cable 40 is at least indirectly connected to the supply line V in the connecting device 18. In particular, the plugging direction 20 then corresponds, for example, to a cable routing direction.

[0082] The connecting device 18 can include a rectifier. In this case, the connecting device 18 does not include a rectifier or is designed without a rectifier and / or inverter because only AC charging is intended. This saves weight.

[0083] The insertion direction 20 of the connecting device 18 is essentially along the longitudinal beam sections 11, 12 and / or towards the free end 14. A connection or plug connection between the connecting device 18 and the charging cable 40 can be released by a tensile force of, for example, at least 50 N in the insertion direction 20. The charging cable 40 is deflected at the free end 14, in particular to allow longitudinal movement. TI

[0084] The fastening of the connecting device 18 to the swivel arm 10 is designed such that it loosens and / or is destroyed when a tensile force of 2000 N or more is applied in the longitudinal direction of the free end 14, in order to release the connecting device 18.

[0085] The connecting device 18 can be riveted to the swivel arm 10 transversely to the further longitudinal beam section 12 and / or transversely to the insertion direction 20, so that a rivet can shear off under sufficient tensile force in the insertion direction 20. The rivet provides a mechanical locking device 55 which yields or is destroyed if a load limit is exceeded, see also Fig. 4A.

[0086] The connecting device 18 can detach from its holder on the swivel arm 10 under sufficient tensile force, for example, by the screws tearing out. A mechanical locking device 55 also provides protection against this. See also Fig. 4E, which shows the rear side of the connecting device 18 screwed to a holder of the swivel arm 10.

[0087] The loading device 2 is provided at a height 22 of at least 2 m and up to 8 m. The loading device 2, in particular the swivel arm 10, has a length 24 of at least 5 m and up to 14 m.

[0088] The diagram illustrates and describes the use of a charging device 2 for an electric vehicle 100, in particular one designed as a commercial vehicle. The charging device 2 is attached to a supporting structure T of a building. The supporting structure T is a wall or a beam of the building.

[0089] It is possible that the charging device 2 has the support structure T. For example, the support structure T can be a column or a stand, for example for attachment to or placement on a surface U.

[0090] A loading device 2 is shown and described, with which a method for pivoting a leg arm 10 of the loading device 2 can be carried out, wherein a remotely controllable device 50 of the loading device 2 is controlled by means of a remote control 52 in order to pivot the leg arm 10 about the pivot axis X, and wherein a free end 14 is adjusted in height by the pivoting.

[0091] The charging device 2 can be pivoted between a standby position, see a) in Fig. 1, a charging position, see b) in Fig. 1, and a maintenance position, see c) in Fig. 1, in particular remotely controlled.

[0092] In the maintenance position, a height 23 of the intersection area 16 and / or a height of the connecting device 18 and / or a height of the remotely controlled device 50 should be reachable from the ground U, or at least easily accessible, e.g., by means of a ladder. For example, the height 23 of the intersection area 16 in the maintenance position is 2 m ± 1 m.

[0093] For example, the length 25 of the swivel arm 10 projected onto the ground U in a top view, particularly in the standby position and / or in the charging position, is proposed to be 9 m ± 2 m. For example, the height 26 of the swivel arm 10 in the charging position is proposed to be 3.5 m ± 1.5 m. For example, the height 27 of the swivel arm 10 in the standby position is proposed to be 6 m ± 1.5 m. A height difference 28 between the standby position and the charging position, measured, for example, at the free end 14, is proposed to be 2.5 m ± 1.5 m.

[0094] The system 1 shown in Fig. 2, which also includes an arrangement with charging devices 2, is shown in further views in Fig. 3, Fig. 4 and Fig. 5.

[0095] The arrangement shown in particular in Fig. 5 comprises several of the charging devices 2. Some of the charging devices 2 are arranged side by side with coaxially aligned pivot axes X. Some of the charging devices 2 are arranged opposite each other with parallel-aligned pivot axes X for pivoting about a common pivot axis X. Basically, one row of charging devices 2 is arranged on one side of the support structure T and a second row of charging devices 2 is arranged on the other side of the support structure T, with their free ends 14 pointing away from each other. The arrangement provides a way to charge a large number of electric vehicles 100 in a small space. In Fig. 2, the charging device 2 is attached to two different support structures T, T2.In particular, the cable 54 of the remotely controlled device 50 is attached to another support structure T2, and the pivot axis X on the swivel arm 10 is formed with the support structure T below the other support structure T2. For example, the other support structure T2 is a beam on the ceiling of a building.

[0096] Furthermore, the loading device 2 of Fig. 2 has the structure 30, which provides stability to the swivel arm 10 and serves to mount the remote-controlled device 50. The structure is, for example, a support structure or a structure made of beams or supports.

[0097] Furthermore, the loading device has two different mechanical safety devices 55 which can give way and / or be destroyed if a load limit is exceeded, in order to release and / or catch the swivel arm 10 away from the swivel axis X in an overload case.

[0098] A mechanical locking device 55, cf. Fig. 3 and Fig. 4A-B, provides an anti-rotation device between the further longitudinal beam section 12 and the longitudinal beam sections 11, particularly in the intersection area 16, which breaks when a certain torque is exceeded as a load limit, for example, when a tensile force of 1000 N or more is applied to the free end 16 via the charging cable 40. In particular, the connection of the longitudinal beam sections 11, 12 in the intersection area 16 can be designed such that it is separated and / or released by a tensile force, e.g. transverse to the free end 14 and about the pivot axis X, of 1000 N or 2000 N or 3000 N or 4000 N or more, in particular to release the free end 14.

[0099] Further mechanical securing devices 55, cf. Fig. 4D, provide a connection between the swivel arm 10, in particular the superstructure 30, and the further supporting structure T2. In particular, a securing device 55 is a safety cable and / or a damped cable. The safety cable can prevent the swivel arm 10 from falling, for example, if the cable 54 breaks or the like. The damped cable can dampen movement of the swivel arm 10. Another securing device 55, for example, a tension element, in particular integrated in the superstructure 30, can yield when a load limit is exceeded in order to release a part of the superstructure 30 and a part of the swivel arm 10 from the free end 14. The first longitudinal beam sections 11 are evidently connected to at least one, in particular three or more, transverse beam sections 13.Typically, the longitudinal beam sections 11, 12 and the crossbeam sections 13 are, at least partially, bolted and / or welded metal profiles or metal beams.

[0100] The first longitudinal beam sections 11 and the further

[0101] The longitudinal beam cut out a Y-shape with the intersection area 16.

[0102] The remotely controlled device 50 is arranged between the intersection area 16 and the pivot axis X on the pivot arm 10, in particular on the superstructure 30.

[0103] The charging cable 40 is guided along the further longitudinal beam section 12 or at the free end 14 in the plug-in direction 20 and can hang from there over the free end 14 essentially perpendicular to the surface U, for example to be plugged into an electric vehicle 100 for charging.

[0104] The electric vehicle 100 has a charging socket for plugging in the charging cable 40. The charging socket can be located at the rear, the front and / or on a side of the electric vehicle 100.

[0105] The charging cable 40 is plugged into or inserted into the connection device 18 at the intersection 16 along the insertion direction 20. If the charging cable 40 is pulled, for example, if an electric vehicle 100 connected to it is moved away from the charging device 2, a tensile force can be transmitted along the charging cable 40, i.e., along the insertion direction 20, to the connection device 18. Even a slight tensile force of 50 N is sufficient to disconnect the connection, in particular the plug connection to the connection device, so that the charging cable 40 is essentially released and can be removed from the charging device 2. This prevents the swivel arm 10 from being damaged or its attachment to support structures T, T2 from unintentionally coming loose. For example, the free end 14 has a guide for the charging cable 40, which deflects a tensile force on the charging cable 40 essentially in the insertion direction 20.

[0106] An electrical supply line V, or a mains connection, as shown by way of example in Fig. 4D-E, leads to the charging device 2, in particular to the connection device 18. This allows an electric vehicle 100 to be charged with electrical energy from the supply line V via the charging cable 40. For example, the supply line V is connected on one side to a public power grid and on the other side to the connection device 18 and / or the charging cable 40.

[0107] Fig. 3 shows the system 1 of Fig. 2, with the swivel arm 10 in a lower swivel position, for example between a maintenance position and a loading position, or in a maintenance position. The description for Fig. 2 applies analogously in principle.

[0108] The first longitudinal beam sections 11 can be seen terminating in the pivot axis X, spaced along the pivot axis X by a distance 29. The distance 29 is, for example, at least 0.5 m or at least 1 m or more. In particular, the bearings on the first longitudinal beam sections 11 are spaced by a distance 29.

[0109] The free end 14 is, for example, spaced from the pivot axis X by a length of 24, or the pivot arm 10 is as long as the length 24.

[0110] For example, the ratio of the distance 29 to the length 24 is at least 0.03 or at least 0.05, preferably at least 0.1, more preferably at least 0.15, to create good stability and connection to supporting structures T, T2.

[0111] Preferably, the length of the further longitudinal beam section 12 is shorter than the length of one of the first longitudinal beam sections 11, for example by at least 10%. Reference numeral list

[0112] 1 system

[0113] 2 Charging device

[0114] 10 swivel arm

[0115] 11 first longitudinal beam sections

[0116] 12 further longitudinal beam sections

[0117] 13 Crossbeam cut

[0118] 14 free ending

[0119] 16 Intersection sb area ch

[0120] 18 Connection device

[0121] 20 Plug direction

[0122] 21 warehouses

[0123] 22 Height of the swivel axis

[0124] 23 Height of the intersection area

[0125] 24 length

[0126] 25 projected length

[0127] 26 Height in loading position

[0128] 27 Height in standby position

[0129] 28 Height difference between 26 and 27

[0130] 29 width

[0131] 30 Construction

[0132] 40 charging cables

[0133] 50 remotely controllable devices

[0134] 51 winch

[0135] 52 Remote control

[0136] 54 rope

[0137] 55 safety devices

[0138] 56 Connection point 58 Height of 56 100 Electric vehicle a) Standby position of 10 b) Charging position of 10 c) Maintenance position of 10

[0139] T supporting structure T2 further supporting structure U subsoil V supply line

[0140] Swivel axis

Claims

1. Patent claims 1. Charging device (2) for electric vehicles (100), comprising a swivel arm (10) with several longitudinal beam sections (11, 12) and a free end (14), wherein the several longitudinal beam sections (11, 12) are fixed to one another and are provided for pivotable attachment to a supporting structure (T), for example a wall or a beam of a building; a charging cable (40) which is guided over the swivel arm (10) and over the free end (14) and which can be connected to an electric vehicle (100); and a remotely controllable device (50) for pivoting the swivel arm (10) about a pivot axis (X) for adjusting the height of the free end (14).

2. Loading device (2) according to the preceding claim, wherein the pivot arm (10) tapers from the pivot axis (X) towards the free end (14).

3. Loading device (2) according to the preceding claim, wherein the multiple longitudinal beam sections (11, 12) are two first longitudinal beam sections (11) have which point towards the pivot axis (X) and in particular intersect the pivot axis (X), which are arranged in a common plane and which are connected to each other at least in a crossing area (16) located between the free end (14) and the pivot axis (X).

4. Loading device (2) according to the preceding claim, wherein the multiple longitudinal beam sections (11, 12) have a further longitudinal beam section (12) connected to the first longitudinal beam sections (11), in particular in the intersection area (16), the further longitudinal beam section (12) providing the free end (14), and the first longitudinal beam sections (11) and the further longitudinal beam section (12) running along the common plane and arranged in a Y-shape.

5. Loading device (2) according to one of the preceding two claims, wherein the first longitudinal beam sections (11) are connected by means of at least one The crossbeam section (13) of the swivel arm (10) are connected to each other, and the several longitudinal beam sections (11, 12) and the at least one crossbeam section (13) are rigidly connected to each other.

6. Loading device (2) according to one of the preceding claims, wherein the remotely controlled device (50) has a winch (51) which is fixed to the pivot arm (10) and which is provided for attachment to the support structure (T) or a further support structure (T2), wherein the winch (51) is fixed on the one hand between the free end (14) and the pivot axis (X), preferably between the intersection area (16) and the pivot axis (X) and / or to the first longitudinal beam sections (11) on the pivot arm (10) and on the other hand is provided for attachment above a pivot axis (X).

7. Loading device (2) according to one of the preceding claims, wherein at least one mechanical securing device (55) is provided which yields and / or is destroyed when a load limit is exceeded in order to release and / or catch a part of the loading device (2), in particular the pivot arm (10), away from the pivot axis (X) in an overload case.

8. Charging device (2) according to the preceding claim, wherein no cable drum is provided on the swivel arm (10) and the charging device (2) has a remote control (52) for controlling the remotely controllable device (50) for adjusting the height of the free end (14).

9. Charging device (2) according to one of the preceding claims, wherein the swivel arm (10) is provided with a connection device (18), in particular a wallbox or connection box, for connecting, in particular plugging, to the charging cable (40), preferably wherein the swivel arm (10) is provided with several connecting devices (18) and / or is designed for connecting, in particular plugging in, several charging cables (40).

10. Charging device (2) according to claim 9, wherein a plugging direction (20) of the connecting device (18) has along the longitudinal beam sections (11, 12) and / or to the free end (14), a plug connection between connecting device (18) and charging cable (40) can be released by a tensile force in the plugging direction (20), and the charging cable (40) is deflected longitudinally at the free end (14).

11. Loading device (2) according to one of the preceding claims, wherein the swivel arm (10) is provided for attachment at a height (22) of at least 2 m and up to 8 m, and has a length (24) of at least 5 m and up to 14 m.

12. Arrangement with several loading devices (2), each configured according to one of claims 1 to 11, wherein at least some or all of the several loading devices (2) are arranged or are to be arranged side by side with substantially coaxially aligned pivot axes (X) to form a common pivot axis (X), and / or at least some or all of the several loading devices (2) are arranged or are to be arranged opposite each other with substantially parallel aligned pivot axes (X).

13. System (1) comprising a support structure (T) and at least one loading device (2) attached to the support structure (T), wherein the system comprises the arrangement according to claim 12 or the loading device (2) is configured according to any one of claims 1 to 11, preferably wherein the system (1) comprises a structure formed with the support structure (T), and / or Several of the charging devices (2) are attached to the support structure (T) and / or are designed to pivot about a common pivot axis (X) in order to connect adjacent electric vehicles (100) to the charging devices (2).

14. Use of a charging device (2) according to one of claims 1 to 11 or an arrangement according to claim 12 or a system (1) according to claim 13 for an electric vehicle (100), in particular one designed as a commercial vehicle, wherein the charging device (2) is attached to a supporting structure (T) of a building and the supporting structure (T) is a wall or a beam of the building.

15. Method for pivoting a pivot arm (10) of a loading device (2) according to one of claims 1 to 11, wherein the remotely controllable device (50) is controlled by means of a remote control (52) to pivot the pivot arm (10) about the pivot axis (X), and the free end (14) is adjusted in height by pivoting.

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