Charging Station Foundation and Charging Station

Abstract

Charging station foundation having an inlet for a power supply line and a recess for receiving charging electronics, the inlet being guided from an outer wall of the foundation to an inner wall of the recess. In order to increase the reliability of charging infrastructure, it is provided that charging electronics at least comprising a circuit breaker and a charging controller protected according to protection class IPxy with x>=6 and y>=6, preferably y>=8 according to DIN EN 60529, are arranged in the recess.

Claims

1. A charging station foundation, comprising: an inlet for a power supply line, and a recess for receiving charging electronics, wherein the inlet is guided from an outer wall of the foundation to an inner wall of the recess, wherein the charging electronics comprise at least one power circuit breaker and a charging controller protected by a casing or cast in the recess in accordance with protection class IPxy with x>=6 and y>=6 in accordance with DIN EN 60529 is arranged in the recess.

2. The charging station foundation according to claim 1, wherein the power supply line is led watertight through the inlet.

3. The charging station foundation according to claim 1, wherein the recess is enclosed on five sides by the foundation with four walls and a floor and has an opening pointing outwards on its ceiling.

4. The charging station foundation according to claim 3, wherein the opening is arranged in the region of a dome projecting from the ceiling of the foundation, the dome being arranged at least partially above the ground level in the installed state of the foundation.

5. The charging station foundation according to claim 4, wherein the dome has connection consoles for a charging station at its end face.

6. The charging station foundation according to claim 4, wherein the dome has a smaller circumference than the ceiling surface on which the dome is arranged.

7. The charging station foundation according to claim 1, wherein in an installed state, the inlet and at least parts of the recess are below a ground level.

8. The charging station foundation according to claim 1, wherein the charging electronics arranged in the recess are set up for the complete execution of a charging process, comprising at least the detection of a charging readiness, the release of a charging current, the detection of an unconnected charging cable and the interruption of the charging current.

9. The charging station foundation according to claim 1, wherein a heat sink is arranged to project from the interior of the recess to at least one outer wall.

10. The charging station foundation according to claim 9, wherein the heat sink at least partially covers a base and/or an inner wall of the recess.

11. The charging station foundation according to claim 9, wherein the heat sink is arranged in a watertight manner between the recess and an outer wall of the foundation.

12. The charging station foundation according to claim 1, wherein a carrier material of the foundation is equipped with a phase change material.

13. A charging station, comprising: the charging station foundation according to claim 1; and a housing fastened to the charging station foundation; wherein the charging station uses the charging electronics arranged in the recess for a charging process.

14. The charging station according to claim 13, wherein a charging cable led out of an opening in the housing is led directly to a charging socket or charging plug.

15. The charging station foundation according to claim 1, wherein y>=8.

16. The charging station foundation according to claim 9, wherein the heat sink is metallic.

17. The charging station foundation according to claim 9, wherein the heat sink projects beyond an outer wall of the foundation.

18. The charging station foundation according to claim 10, wherein the heat sink is a metallic plate.

19. The charging station foundation according to claim 12, wherein the carrier material comprises concrete.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0029] In the following, the subject-matter is explained in more detail using a drawing showing embodiments. In drawing show:

[0030] FIG. 1 shows a schematic view of a charging station foundation;

[0031] FIG. 2 shows a schematic cross-sectional view of a charging station foundation with charging electronics; and

[0032] FIG. 3 shows a schematic view of a charging station with a charging station foundation.

DETAILED DESCRIPTION

[0033] FIG. 1 shows a charging station foundation 2. A dome 4 is preferably arranged in one piece on foundation 2 in the area of a ceiling surface 2a. The foundation has four side walls 2b and a floor 2c. A recess 6 is provided in the foundation itself, which is enclosed by the side surfaces 2b and the base 2c. In the area of the ceiling surface 2a, the recess 6 extends outwards via an opening 8.

[0034] In addition, an inlet 10 is provided through which a watertight power supply cable can be led into the inside of the foundation in the recess 6.

[0035] The recess 6 accommodates a charging electronics 12 secured against water.

[0036] It can be seen that the circumference of the dome 4 is smaller than the circumference of the ceiling area 2a. Furthermore, the dome 4 protrudes from the ceiling surface 2a. The opening 8 preferably has a clear width to accommodate a charging electronics 12.

[0037] It can also be seen that 4 threaded sleeves 24 are arranged on the front side of the dome, via which the charging station 30 can be screwed to the foundation 2.

[0038] FIG. 2 shows a schematic cross-sectional view through a foundation 2. It can be seen that the charging electronics 12 are encapsulated in a housing. The housing is preferably designed according to IP protection class IP66, IP67 or IP68. Higher protection classes are also possible. The power supply line 14 is led through inlet 10 into the interior of foundation 2, thus into recess 6. The passage through inlet 10 is preferably watertight. The power supply cable 14 is preferably led watertight into the housing of the charging electronics 12. At least one charging cable 16 is led out of the charging electronics watertight. In addition, an antenna 18 can also be led out of the housing 12 watertight. Both the charging cable 16 and the antenna 18 are led out of the foundation 2 via the opening 8.

[0039] The charging electronics 12 accommodates at least a charging controller and a circuit breaker, preferably a contactor and a fault current switch, in particular a type 3 fault current switch. The charging electronics 12, in particular the charging controller, handles all communication with the electric vehicle as well as communication with a billing centre if necessary, preferably wirelessly using the antenna 18. Communication with the electric vehicle is preferably via the charging cable 16.

[0040] FIG. 2 also shows that the dome 4 is formed in one piece with the foundation 2. A phase change material is preferably incorporated in the material of the dome 4 and the foundation 2 in order to enable increased temperature stability within the recess 6.

[0041] In the installation position, foundation 2 is preferably below ground level 20, as shown in FIG. 3. FIG. 3 shows that foundation 2 is completely below ground level 20 and only part of dome 4 protrudes from the ground. It can be seen that charging station 2 is screwed with connecting means 22, in particular screws, to the sleeves 24 arranged on the front face of dome 4. The charging cable 16, which is directly connected to a charging socket 26, is led out of dome 4. The charging cable 16 can be connected to a charging cable durably attached to the charging station 2. The antenna 18 is guided inside charging station 2 and, by being guided out of ground level 20, enables communication with a remote control centre, for example via a wide area network.

[0042] The fact that foundation 2 is embedded in the ground ensures that an optimized temperature curve is achieved during operation; in particular, it ensures that the charging electronics can always be kept below a maximum temperature limit, e.g. 70 C. Cooling is optimised, for example, by the fact that, as shown in FIG. 2, a heat sink 28, e.g. in the form of a metallic plate, is arranged at the bottom of the receptacle 6. The heat sink 28 is guided from the inside of the recess 26 to the outside and beyond. The heat sink 28 is in the installation position in the ground and enables a good cooling of the interior of the recess 6. Preferably the housing of the charging electronics 12 is fastened directly to the heat sink 28 or placed on it.

[0043] All references, including publications, patent applications, and patents cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.

[0044] The use of the terms a and an and the and similar referents in the context of describing the invention (especially in the context of the following claims) is to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms comprising, having, including, and containing are to be construed as open-ended terms (i.e., meaning including, but not limited to,) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., such as) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.

[0045] Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Variations of those preferred embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.