Kerb, paving stone or kerbstone charging device for charging an energy store of an electrically driven vehicle

Abstract

The invention proposes a kerb, paving stone or kerbstone charging device (18) for charging an energy store (30) of an electrically driven vehicle (32), comprising a kerb, paving stone or kerbstone main body (34), a receiving space (36) which is at least partially bounded by the kerb, paving stone or kerbstone main body (34), an electrical interface unit (24) for transmitting power from the kerb, paving stone or kerbstone charging device (18) to the vehicle (32), a power supply cable (22) which protrudes into the receiving space (36) in the kerb, paving stone or kerbstone main body (34), and electronic components (56) for open-loop and closed-loop control of the charging process, which are arranged in the receiving space (36) of the kerb, paving stone or kerbstone main body (34) and via which the electrical interface unit (24) is connected to the power supply cable (22), in which kerb, paving stone or kerbstone charging device, for parking space monitoring, an encapsulated electronics box (54) which is dust- and liquid-tight on all sides is arranged in the receiving space (36), the electronic components (56) for open-loop and closed-loop control of the charging process being arranged in the electronics box and a parking occupation sensor (60) being arranged in the electronics box, the parking occupation sensor being connected to an evaluation unit (62) for data interchange and to at least one of the electronic components (56) for open-loop and closed-loop control of the charging process.

Description

[0001] i

[0002] Pierburg GmbH

[0003] DESCRIPTION

[0004] Curb, paving stone or kerb charging device for charging an energy storage device of an electrically powered vehicle

[0005] The invention relates to a curb, paving stone or kerb charging device for charging an energy storage device of an electrically driven vehicle with a curb, paving stone or kerb base body, a receiving space which is at least partially delimited by the curb, paving stone or kerb base body, an electrical interface unit for transmitting energy from the curb, paving stone or kerb charging device to the vehicle, a power supply cable which projects into the receiving space in the curb, paving stone or kerb base body, electronic components for controlling and regulating the charging process, which components are arranged in the receiving space of the curb, paving stone or kerb base body and via which the electrical interface unit is connected to the power supply cable.

[0006] Such curb, paving, or curb charging devices are charging stations integrated into the curb, paving, or curb, to which vehicles can be connected via an electrical connection to charge their energy storage units or batteries. This particularly applies to purely electric vehicles but also hybrid vehicles. Chargeable vehicles can be passenger cars, trucks, motorcycles, or electric bicycles.

[0007] Due to the new legislation, the growing interest of the population in climate protection and the improved economic viability of electrified vehicles, it is to be expected that the proportion of electric vehicles will increase dramatically, especially in inner-city areas, so that the available charging infrastructure must be expanded significantly. This means that some of the existing parking spaces must be provided with appropriate charging options in order to ensure individual mobility in the future.

[0008] Known concepts for this include the use of streetlights, additional charging stations, or wall boxes on building walls. All of these concepts require additional space and cause disruption to pedestrians due to the charging cables required.

[0009] For this reason, charging systems have become popular where the charging devices are integrated into the curb or kerb. This has the advantage that no charging stations obstruct the sidewalks and thus spoil the visual appearance. Instead, no additional space is required, simply utilizing existing infrastructure. Modularization allows for high flexibility and retrofit capability. Damage to the charging infrastructure caused by vehicle accidents can also be prevented.

[0010] For example, WO 2021 / 156621 A2 proposes a vehicle charging station comprising a base element and a replaceable head section that can be inserted into the base element. This head section integrates wireless telecommunications technologies and infrastructures, such as Wi-Fi, Bluetooth, or parking occupancy sensors. This curb also features a connection socket and optional battery packs.

[0011] Furthermore, EP 1753917 B1 discloses a curb made of a plastic or rubber material with an interior cavity filled with concrete through openings, to which parking occupancy sensors can be attached. However, the problem with these curb charging devices is that they typically do not provide completely self-contained charging devices, but rather require additional connections to central charging stations. Furthermore, the parking occupancy sensors and their connections are not adequately protected against vandalism or damage.

[0012] The challenge, therefore, is to provide a curb, paving stone, or kerb charging device for charging the energy storage unit of an electrically powered vehicle. This device can operate largely autonomously, is easy to install and maintain, and whose electronics and existing parking occupancy sensors are reliably protected from the elements and other possible damage, such as dirt or vandalism. Furthermore, the parking occupancy sensors should enable the identification and classification of existing parked vehicles.

[0013] This object is achieved by a curb, paving stone or kerb charging device for charging an energy storage device of an electrically powered vehicle having the features of main claim 1.

[0014] The curb, paving stone, or kerb charging device according to the invention for charging an energy storage device of an electrically powered vehicle has a curb, paving stone, or kerb base body. This can have different walls such as a front wall, a rear wall, side walls, and a floor, or only partially form these. The curb, paving stone, or kerb base body can also be designed in two or three parts, whereby different materials such as steel, concrete, natural stone, plastic, or composite material can be used either uniformly or in various conceivable combinations. Concrete is of course also understood to mean ultra-high-performance concrete (UHPC), fiber-reinforced concrete, or polymer concrete in which a plastic is used as a binding agent instead of cement.The term curb, paving stone or kerbstone refers to all elements that form the surface of a sidewalk and its border, a paved road, driveway, parking lot or similar, whereby these stones can be made of concrete, plastic or any other suitable material.

[0015] The base body of a curb, paving stone, or kerbstone defines at least partially a receiving space. The base body can form only side walls and a floor, but can also contain, in addition to or solely, a front wall and a rear wall. The walls can extend essentially the entire height of the curb or only form part of these walls. The receiving space can be closed off by a protective cover or essentially closed off at the top by a part inserted into the receiving space. When a protective cover is used, it can also fully or partially define front, side, or rear walls, thus defining the receiving space with the base body.

[0016] The curb, paving stone or kerb charging device further comprises an electrical interface unit for transmitting energy from the curb, paving stone or kerb charging device to the vehicle, which is, for example, mechanically connected at least indirectly to the protective cover or to the base body and can be designed as a charging socket into which a corresponding plug can be inserted or as an inductive pad and can be either fixed or pivoting or extendable. A power supply cable protrudes from the outside into the receiving space in the curb, paving stone or kerb base body in order to supply existing electronic components for controlling and regulating the charging process with energy. Furthermore, the electrical interface unit is connected to the power supply cable via the electronic components.According to the invention, an encapsulated, dust- and liquid-tight electronics box is arranged in the receiving space. It contains the electronic components for controlling and regulating the charging process and a parking occupancy sensor connected to an evaluation unit for data exchange and to at least one of the electronic components for controlling and regulating the charging process. The use of the dust- and liquid-tight electronics box reliably prevents the ingress of water and contaminants, thus protecting the parking occupancy sensor from damage. The electronics box can be made of one or more materials and can be manufactured in one or more pieces.In the context of this application, a dust- and liquid-tight electronics box is understood to mean a container that is impervious to liquids and solid contaminants, such as dust, in particular according to IP 67 / 68 / 69, so that cable passages or interfaces of the boundary walls must be sealed accordingly. Complete embedding is also conceivable. Furthermore, the dust- and liquid-tight electronics box can be manufactured independently of the remaining curb, paving stone, or kerb and pre-assembled with the electronics. This prevents damage to the electronics due to weather influences and enables installation of the electronics independently of the curb. Only the connection of the power supply cable and, if applicable, the charging socket must be carried out on site.This allows the base body to be mounted on the roadside and later fitted with the dust and liquid-tight electronics box and thus with the parking occupancy sensor, its evaluation unit and the remaining electronics in a single step. Replacing the entire electronics is also made much easier. This also enables centralised maintenance of the units. The dust and liquid-tight electronics box can be made of plastic, fibre-reinforced plastic or metal. Mixed constructions are also possible. The pre-assembled unit can be sealed, thus ensuring security against tampering. By arranging the parking occupancy sensor in the electronics box, the electronics present there, such as a power supply unit for energy supply or a charging controller for data evaluation and data transmission to, for example,An operator's external backend system can be used for the parking occupancy sensor, eliminating the need for additional components on the curb or in its surroundings, and avoiding additional cable feedthroughs into or out of the electronics box and additional electrical interfaces. The evaluation unit can, for example, be integrated into the parking occupancy sensor, be formed by a separate component, or be part of a charging control system. The electronic components to which the parking occupancy sensor is connected can be a power supply and / or a charging controller, as well as transmitting or receiving units. This allows for complete integration of a parking occupancy sensor into the electronics unit of a curb, paving stone, or kerb charging device.

[0017] Please note that in the following, terms such as vertical, horizontal, top or bottom always refer to the usual installation situation of the charging device on the road.

[0018] The parking occupancy sensor preferably has a receiving unit for receiving electromagnetic waves. This can be implemented, for example, as a photodetector, semiconductor elements, or antennas, so that images or outlines can be recognized or generated. The use of electromagnetic waves enables very precise distance detection and, if necessary, identification of the object.

[0019] It is particularly preferred if the parking occupancy sensor is a radar sensor, an ultrasonic sensor, or a camera. The radar sensor offers high immunity to interference such as dirt, leaves, and other roadway interference, enabling very precise positioning. The camera can also be used to identify the object, for example, using license plate recognition.

[0020] To further improve the accuracy of the measurements, a magnetic field sensor can be arranged in the electronics box in addition to the radar sensor or camera.

[0021] In a particular embodiment, the electronics box has a boundary wall surface that is permeable to the electromagnetic waves being transmitted and / or received and that is arranged opposite the receiving unit of the parking occupancy sensor. This wall surface can either be made of the same material as the electronics box or, if it requires increased stability, can be arranged in a corresponding recess in a wall surface of the electronics box. This ensures that, despite the arrangement of the parking occupancy sensor in the electronics box, the electromagnetic waves can penetrate the electronics box to detect a parked vehicle.

[0022] In a further embodiment, a through-opening is formed on a front wall of the curb, paving stone, or kerb base body facing the street, or on a protective cover which forms at least one upper boundary wall when the curb, paving stone, or kerb charging device is installed. This through-opening is arranged on the side of the wall surface permeable to electromagnetic waves opposite the receiving unit of the parking occupancy sensor. This ensures that the electromagnetic waves are not shielded by any components surrounding the electronics box, such as the protective cover or the curb base body. In yet another further embodiment of the invention, the through-opening is formed directly below the upper boundary wall when the curb, paving stone, or kerb charging device is installed.Accordingly, the parking occupancy sensor is located at the top of the curb or kerb, increasing its free observation angle and ensuring that the electromagnetic waves are not blocked by objects on the road. It also prevents objects from being missed because the parking occupancy sensor detects underneath them, for example, in vehicles with a long wheelbase.

[0023] Advantageously, the upper boundary wall is formed by the protective cover, and the passage opening is designed as a recess at the upper edge of a front wall of the curb, paving stone, or kerbstone base body. Such a recess is easy to manufacture. Furthermore, the parking occupancy sensor, or the wall surface behind which it is located, is protected from direct weight load by the protective cover.

[0024] In an alternative advantageous embodiment, the through-opening is formed on the protective cover. This also allows the area above the vehicle to be observed, preventing the curb, paving stone, or kerb charging device from being identified as free even when an object or, for example, a bicycle is positioned on it. Furthermore, this can be used to determine whether a vehicle is partially parked on the curb, which is particularly important for preventing the pivoting charging socket from extending when a collision is imminent.

[0025] In a further version, the passage opening on the

[0026] The protective cover is angled and extends through the protective cover with one extension component towards the front and one extension component towards the top, whereby the parking occupancy sensor is completely concealed by the protective cover when projected vertically onto the top of the protective cover. This alignment opens up a field for detection that includes both the space in front of the curb and the space above the curb. Covering it from above also prevents damage to the parking occupancy sensor, as it or the wall surface in front of it cannot be subjected to direct loads from above. This also prevents dirt or water from accumulating in front of the sensor.

[0027] In a further embodiment of the invention, a sensor axis runs parallel to the direction of extension of the through-opening through the protective cover. Accordingly, the electromagnetic waves can pass through the through-opening to the sensor without deflection and at a maximum angle of incidence. This allows images to be generated with maximum sharpness, for example.

[0028] It is particularly advantageous if the wall surface permeable to electromagnetic waves is a translucent insert sealed within an opening of a boundary wall, particularly a side wall of the electronics box, and the parking occupancy sensor is formed by the camera. The translucent insert can be formed by a glass or plastic pane. The seal preserves the encapsulation of the electronics box, but its stability is also not affected or only slightly affected, since the insert can be made very small and the remaining wall can be made of steel, for example.

[0029] Advantageously, the camera has a wide-angle lens, allowing the surroundings to be recorded very precisely over a large angle, which, for example, significantly facilitates the identification of vehicles via license plates. The camera is preferably arranged in the electronics box such that an optical axis of the camera lens has an upward component and a forward component, so that the area above and in front of the curb can also be observed with this design.

[0030] In a further advantageous embodiment, the opening in the electronics box and / or the through-opening in the protective cover are designed and arranged such that object points can be recorded within an angular range of at least 60°, preferably 90° to 120°, with the optical axis of the camera being inclined upwards by an angle between 10° and 60° relative to a horizontal vector pointing toward the road. In this way, monitoring of the road surface and the surrounding area above the parking sensor can be ensured.

[0031] In an alternative embodiment, the parking occupancy sensor is a radar sensor comprising a transmitting unit and a receiving unit for electromagnetic waves. The transmitting unit and the receiving unit are located opposite the wall surface permeable to radar waves, which is sealed in an opening in a boundary wall of the electronics box. Here, too, a sufficiently small opening and its sealing can be provided on the boundary wall of the electronics box to avoid any impairment of the encapsulation and the strength of the electronics box. Nevertheless, the radar sensor remains fully functional.

[0032] In a further embodiment of the invention, the dust- and liquid-tight electronics box forms the upper boundary wall of the curb, paving stone, or kerb charging device. This design eliminates the need for an additional protective cover. The viewing angle of the parking occupancy sensor is thus only slightly restricted by the wall of the electronics box.

[0033] Preferably, the data from the parking occupancy sensor can be processed in the evaluation unit for object differentiation, classification, and / or license plate analysis. This allows, in addition to the pure occupancy status, differentiation between different vehicle types, such as motorcycles, trucks, or cars, as well as between electric vehicles and vehicles with combustion engines, and precise identification of the vehicle can be achieved. This can also be used to prevent unauthorized parking if the data is further processed. Using a camera and recognizing the vehicle / license plate, the charging process can also be authorized.

[0034] Furthermore, it is advantageous if the evaluation unit is connected to a charging control unit or is designed as a single unit. This reduces the number of components and creates the possibility of forwarding the collected data via the charging control unit to the backend and / or the internet, which can be used to identify and differentiate between free and occupied charging points for all road users, as well as to identify illegally parked vehicles.

[0035] This creates a curb, paving stone, or curb charging device for charging the energy storage unit of an electrically powered vehicle. The device operates completely independently and requires only a connection to a power supply cable, which is particularly easy to install. The dust- and liquid-tight electronics box allows the entire electronics, including a parking occupancy sensor, to be easily pre-assembled and protected from external influences. It can be installed or replaced as a pre-assembled component in the stone. Damage to the parking sensor caused by heating, pressure fluctuations, penetrating liquids, or dirt is prevented, and the parking occupancy sensor is protected from the elements. The data from the parking occupancy sensor can be further processed and transmitted via the electronics in the electronics box. External cabling for the parking occupancy sensor is therefore completely unnecessary.

[0036] A non-limiting embodiment of a curb, paving stone or kerb charging device according to the invention for charging an energy storage device of an electrically driven vehicle is described below by way of example using a curb charging device with reference to the figures.

[0037] Figure 1 shows a schematic diagram of a road with a limiting curb loading device according to the invention in plan view.

[0038] Figure 2 shows a side view of a curb loading device according to the invention in a sectional view.

[0039] Figure 3 shows a perspective front view of the curb loading device according to the invention from Figure 2.

[0040] Figure 4 shows a side view of an alternative curb loading device according to the invention in a sectional view.

[0041] Figure 5 shows a perspective front view of the curb loading device according to the invention from Figure 4.

[0042] Figure 1 shows a sidewalk 10, which is bordered on one side by a house wall 12 and on the other side by a curb 14 formed by several stone elements 16 and curb charging devices 18 according to the invention, forming a boundary to the street 19. On the side of the sidewalk 10 facing away from the curb 14, there is an energy source 20 in the form of a power connection connected to the power grid. The energy source 20 is connected to the curb charging devices 18 via underground power supply cables 22. Interface units 24 in the form of charging sockets are arranged on the curb charging devices 18, into which a plug 26 is inserted. The plug 26 is connected via a cable 28 to an energy storage device 30, in particular a battery of an electrically powered vehicle 32, so that this energy storage device 30 can be charged via the energy source 20.

[0043] The curb loading device 18 shown in Figure 2 consists of a curb base body 34, inside which a receiving space 36 is formed, which is closed at the top by a protective cover 38. The curb base body 34 has a front wall 40, a rear wall 42, two side walls 44, and a base 46, which delimit the receiving space 36 at the bottom and on all four sides.

[0044] The curbstone base body 34 can be made of concrete or a plastic, which may contain fiber reinforcements, while the protective cover 38 is made of a high-strength material such as steel. However, other sufficiently strong materials are also conceivable.

[0045] The protective cover 38 forms an upper boundary wall 47 and is attached to the side walls 44 of the curb base body 34 via screws 48 with a seal 50 interposed therebetween. The protective cover 38 rests on an upper side of the curb base body 34 and thus on the upwardly facing ends of the side walls 44, the front wall 40, and the rear wall 42.

[0046] The protective cover 38 has a rounded impact wall 52, which covers an edge between the top of the curb base body 34 and a side surface of the curb base body 34 facing the street. As can be seen in Figure 2, a dust- and liquid-tight electronics box 54 is arranged in the receiving space 36. Inside the electronics box 54, electronic components 56 are arranged, which are connected on the one hand to the power supply cable 22 and on the other hand to the interface unit 24. The cable passages required for this purpose are designed to be completely liquid- and dust-tight.

[0047] The electronic components 56 inside the electronics box 54 can, in particular, form a completely self-contained charging unit. This can include an energy meter, a charging control unit 58, a power contactor, in particular a high-voltage contactor, a residual current device and / or a circuit breaker, a power supply connected to the charging control unit, a residual current sensor, an RFID board, a radio wave antenna, and other electronic components in the electronics box 54.

[0048] According to the invention, a parking occupancy sensor 60 is additionally arranged in the electronics box 54. This sensor is electrically connected to an evaluation unit 62 for data exchange, which in turn has a connection to the charging control unit 58 or can be designed as a single unit. The parking occupancy sensor 60 has a receiving unit 64, via which, depending on the design of the parking occupancy sensor 60, various electromagnetic waves are received.

[0049] In the present embodiment, the parking occupancy sensor 60 is designed as a digital camera 66, so that the receiving unit 64 is designed as a photodiode or photodetector, via which the visible electromagnetic waves are recorded and converted into digital signals.

[0050] The camera 66 is located in the electronics box 54 directly behind a boundary wall surface 68, which is permeable to electromagnetic waves. In the present case, this wall surface 68 is designed as a translucent insert 70 made of plastic or glass, so that the light waves can reach the receiving unit 64 unhindered. The wall surface 68 is arranged in an opening 72 on a lateral boundary wall 74 of the electronics box 54. A seal 76 is arranged around the transparent wall surface 68 and in the opening 72 to seal the boundary wall 74 from the wall surface 68.

[0051] To ensure a clear view of the camera 66 through the curb base body 34, a through-opening 78 is formed on the front wall 40 facing the street 19. This through-opening is designed as a recess 80 at an upper edge 82 of the front wall 40, so that this through-opening is delimited at the top by the protective cover 38. The recess 80 is designed such that the camera 66 can record the surroundings at least within an angular range of 60° in the vertical and horizontal directions.

[0052] In addition to the camera 66, a magnetic field sensor 84 is also arranged in the electronics box 54, which is similarly arranged behind a wall surface 68 permeable to the electromagnetic waves. If the curb base body 34 is permeable to its receivable waves, a further through-opening 78 on the curb base body 34 can be omitted.

[0053] Figure 4 shows an alternative arrangement of the parking occupancy sensor 60. Here, the parking occupancy sensor 60 is formed below an upper boundary wall 86 of the electronics box 54, which also forms the upper boundary surface of the curb charging device 18, so that in this embodiment, the boundary wall simultaneously forms the protective cover. Naturally, in this embodiment, the electronics box is designed with correspondingly stable boundary walls 74, 86. The receiving space 36 is delimited here only by the floor 46 and, in the area of ​​the side walls 44, the rear wall 42, and the front wall 40, by the curb base body 34.

[0054] Here, too, a wall surface 68 permeable to electromagnetic waves is formed in the upper boundary wall 86 in the form of a translucent insert 70 sealed to the boundary wall 86. For this purpose, a protrusion 88 is formed on the boundary wall 86, on the side of which protrusion facing the street 19, the wall surface 68 is formed. Boundary surfaces 90 of the protrusion 88 run obliquely to the remaining surface of the boundary wall 86, so that the wall surface 68 is also tilted relative to a horizontal and a vertical. In the present embodiment, a normal vector to the wall surface 68 has an angle of approximately 45°. The camera 66 arranged in the electronics box 54 behind this wall surface 68 is correspondingly aligned such that a sensor axis 92, which in this case is formed by an optical axis 94 of a lens 96 of the camera 66, has essentially the same orientation as this normal vector.The camera 66 used here has a wide-angle lens 98. This wide-angle lens 98 captures a vertical and diagonal angle of view of, for example, 90°. This means that with the aforementioned inclination of the optical axis 94, both object points located vertically above the camera 66 and objects located horizontally to the camera 66 are detected. Accordingly, with such a camera 66, the entire area in front of and above the curb loading device 18 can be observed.

[0055] In Figure 5, a radar sensor 100 serves as an alternative to the camera 66 as the parking occupancy sensor 60. The curb base body 34 is designed essentially in the same way as in the exemplary embodiment according to Figures 2 and 3. Accordingly, the receiving space 36 is closed off by the protective cover 38. In this embodiment, the radar sensor 100 is also located in the electronics box 54, specifically opposite a wall surface 68 permeable to radar waves, which in the present exemplary embodiment forms the entire upper wall surface of the electronics box 54 and is fastened via a flange surface with the interposition of a seal. In this embodiment, the through-opening is formed on the protective cover 38. For this purpose, the cover has a raised portion 102, on the side of which facing the street 19, the through-opening 78 is formed, pointing obliquely upwards with an extension component towards a front side 104, i.e., towards the street 19, and an extension component towards the upper side 106.The elevation 102 has a projection 105 over this through-opening 78, so that the wall surface 68 and the radar sensor 100 are completely concealed by the protective cover 38 when projected vertically onto the upper side 106 of the protective cover 38. The radar sensor 100 is arranged in the electronics box 54 such that its sensor axis 108, i.e., the direction in which the signals of a transmitting unit 110 of the radar sensor 100 are emitted, corresponds to the direction of extension of the through-opening 78 through the protective cover 38. Accordingly, the electromagnetic waves can be emitted in a straight line from the radar sensor 100 through the wall surface 68 and through the through-opening 78 and detect objects and, in particular, vehicles 32 in the area of ​​the road 19, through which the signals of the radar sensor 100 are reflected to its receiving unit 64.

[0056] All of the described embodiments make it possible to detect whether a vehicle 32 occupies the space in front of the curb charging device 18 or whether it is free. It is also possible to differentiate between objects, for example, between a bicycle and a motor vehicle or other objects in the surrounding area. When using the camera 66, the license plate number of the vehicle 32 can also be determined by image analysis in the evaluation unit 62, thus enabling clear identification. In this way, it is also possible to determine whether it is an electric vehicle or a vehicle 32 with a combustion engine. By connecting the evaluation unit 62 to the charging control unit 58, this data can then also be transmitted to the backend via the mobile radio unit of the curb charging device 18.This data can also be used to report available charging stations to drivers, for example, via an app. It can also be used to identify illegally parked vehicles and forward the data to a government agency, for example.

[0057] Furthermore, it should be clear that the electronics can be adapted to the respective conditions, in particular to the legal requirements of the country. The connector socket can also be equipped with different lifting, folding or pivoting mechanisms, or the interface unit can be designed as an induction pad. The structure of the curb, paving stone or kerbstone body and the attachment of the protective cover can also be carried out differently, or the electronics box can form part of the front wall or the protective cover. In addition to the described application in the curb, the corresponding electronics can also be installed in other paving stones for sidewalks or streets, or on curbs in parking lots. The charging devices can also have other combinations than those described in the exemplary embodiment.For example, a camera can be used underneath the protective cover, or several different or identical parking occupancy sensors can be installed on a curb. The data from multiple curbside charging devices can also be evaluated centrally by forwarding the sensor data to a central evaluation unit via the charging control unit and Ethernet. In this case, the evaluation unit would not be located in the electronics box. This also allows a failed parking sensor to be replaced by the sensors of neighboring loading curbs. Of course, the surroundings of the charging device can also be redirected to the camera via a mirror on the curb.

Claims

P A T E N T A N S P R Ü C H E 1. Curb, paving stone or curb charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) with a curb, paving stone or curb base body (34), a receiving space (36) which is at least partially delimited by the curb, paving stone or curb base body (34), an electrical interface unit (24) for transmitting energy from the curb, paving stone or curb charging device (18) to the vehicle (32), a power supply cable (22) which projects into the receiving space (36) in the curb, paving stone or curb base body (34), electronic components (56) for controlling and regulating the charging process, which components are arranged in the receiving space (36) of the curb, paving stone or curb base body (34) and via which the electrical interface unit (24) is connected to the power supply cable (22), characterized in that an encapsulated,an electronics box (54) which is dust- and liquid-tight on all sides is arranged in the receiving space (36), in which the electronic components (56) for controlling and regulating the charging process are arranged and in which a parking occupancy sensor (60) is arranged, which is connected to an evaluation unit (62) for data exchange and to at least one of the electronic components (56) for controlling and regulating the charging process.

2. Curb, paving stone or curb charging device (18) for charging an energy storage device (30) of an electrically powered vehicle (32) according to claim 1, characterized in that the parking occupancy sensor (60) has a receiving unit (64) for receiving electromagnetic waves.

3. Curb, paving stone or curb charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 1 or 2, characterized in that the parking occupancy sensor (60) is a radar sensor (100), an ultrasonic sensor or a camera (66).

4. Curb, paving stone or curb charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 3, characterized in that in addition to the radar sensor (100) or the camera (66), a magnetic field sensor (84) is arranged in the electronics box (54).

5. Curb, paving stone or curb charging device (18) for charging an energy storage device (30) of an electrically powered vehicle (32) according to one of claims 2 to 4, characterized in that the electronics box (54) has a delimiting wall surface (68) which is permeable to the electromagnetic waves transmitted and / or to be received and which is arranged opposite the receiving unit (64) of the parking occupancy sensor (60).

6. Curbstone, paving stone or curbstone charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 5, characterized in that on a front wall (40) of the curbstone, paving stone or kerbstone base body (34) facing the street (19) or on a protective cover (38) which forms at least one upper boundary wall (47) when the curbstone, paving stone or kerbstone loading device (18) is installed, a through opening (78) is formed, which is arranged on the side of the wall surface (68) permeable to the electromagnetic waves opposite the receiving unit (64) of the parking occupancy sensor (60).

7. Curbstone, paving stone or kerbstone charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 6, characterized in that the through opening (78) is formed directly below the upper boundary wall (47) in the installed state of the curbstone, paving stone or kerbstone charging device (18).

8. Curbstone, paving stone or kerbstone charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 7, characterized in that the upper boundary wall (47) is formed by the protective cover (38) and the through opening (78) is designed as a recess (80) on an upper edge (82) of a front wall (40) of the curbstone, paving stone or kerbstone base body (34).

9. Curbstone, paving stone or curbstone charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 6, characterized in that the through opening (78) is formed on the protective cover (38).

10. Curb, paving stone or kerb charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 9, characterized in that the through-opening (78) on the protective cover (38) is formed obliquely and extends through the protective cover (38) with an extension component towards the front side (104) and an extension component towards the top side (106), wherein the parking occupancy sensor (60) is completely concealed by the protective cover (38) when projected vertically onto the top side (106) of the protective cover (38).

11. Curbstone, paving stone or curbstone charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 10, characterized in that a sensor axis runs parallel to the direction of extension of the through opening (78) through the protective cover (38).

12. Curb, paving stone or kerb charging device (18) for charging an energy storage device (30) of an electrically powered vehicle (32) according to claim 5, characterized in that the wall surface (68) permeable to the electromagnetic waves is a translucent insert (70) which is arranged in a sealed manner in an opening (72) on a boundary wall (74, 86) of the electronics box (54) and the parking occupancy sensor (60) is formed by the camera (66).

13. Curb, paving stone or kerb charging device (18) for charging an energy storage device (30) of an electrically powered vehicle (32) according to claim 5, characterized in that the camera (66) has a wide-angle lens (98).

14. Curb, paving stone or kerb charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to one of claims 3 to 13, characterized in that the camera (66) is arranged in the electronics box (54) in such a way that an optical axis (94) of the lens (96) of the camera (66) has a component towards the top side (106) and a component towards the front side (104).

15. Curb, paving stone or kerb charging device (18) for charging an energy storage device (30) of an electrically powered vehicle (32) according to claim 14, characterized in that the opening (72) on the electronics box (54) and / or the through-opening (78) on the protective cover (38) are designed and arranged such that object points can be recorded in an angular range of at least 60°, wherein the optical axis (94) of the camera (66) is inclined upwards by an angle between 10° and 60° to a horizontal vector pointing towards the road (19).

16. Curb, paving stone or curb charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to claim 5, characterized in that the parking occupancy sensor (60) is the radar sensor (100) which has a transmitting unit (110) and the receiving unit (64) for electromagnetic waves, wherein the transmitting unit (110) and the receiving unit (64) are opposite the wall surface (68) which is permeable to radar waves and which is arranged in a sealed manner in the opening (72) of the boundary wall (74, 86) of the electronics box (54).

17. Curb, paving stone or kerb charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to one of the preceding claims, characterized in that the dust- and liquid-tight electronics box (54) forms the upper boundary wall (86) of the curb, paving stone or kerb charging device (18).

18. Curbstone, paving stone or curbstone charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to one of the preceding claims, characterized in that the data of the parking occupancy sensor (60) can be processed in the evaluation unit (62) for object differentiation, classification and / or license plate evaluation.

19. Curbstone, paving stone or curbstone charging device (18) for charging an energy storage device (30) of an electrically driven vehicle (32) according to one of the preceding claims, characterized in that the evaluation unit (62) is connected to a charging control unit (58) or is designed as one piece therewith.

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