DE102020004114A1 - Charging system and method for covering a charging area of an electric charging station - Google Patents

Abstract

The invention relates to a charging system (1) for carrying out an electric charging process of a vehicle (2), with an electric charging station (3), the electric charging station (3) being connected to a vehicle-side contacting unit (1) as a function of a charging state of the charging system (1). 4) of the vehicle (2) can be contacted in order to carry out the electrical charging process, wherein - the charging system (1) has a cover device (10) which has at least one movable cover element (11, 12), with the at least one cover element ( 11, 12) a charging area (8) of the electric charging station (3) can be covered depending on the charging state of the charging system (1), - the covering device (10) assumes a first covering state when no charging process is being carried out, in the first covering state the Loading area (8) is completely covered with the at least one cover element (11, 12), and the cover device (10) assumes a second cover state when a n charging is imminent and the electric charging station (3) is contacted with the vehicle (2), the charging area (8) being fully open in the second cover state, and the cover device (10) assumes a third cover state when a charging process is carried out , wherein in the third cover state the loading area (8) is covered with the at least one cover element (11, 12) in such a way that a penetration gap (13) is formed for the vehicle-side contacting unit (4). The invention also relates to a method.

Description

The invention relates to a charging system for carrying out an electrical charging process of a vehicle. The charging system has an electric charging station, the electric charging station being able to be contacted with a vehicle-side contacting unit of the vehicle as a function of a charge state of the charging system in order to carry out the electric charging process.

The invention also relates to a method for covering a charging area of an electric charging station.

An ACDU (Automatic Connection Device Underbody) system based on protective extra-low voltages is used for electrical and, in particular, conductive charging processes for electric vehicles. This ACDU system can be arranged, for example, similar to a pantograph on the underbody side of the electric vehicle. The contact rails on the off-board side and on-board side are openly accessible during a charging process and do not offer any protection against contact with the live contact rails. This protection against accidental contact may be necessary in order to protect people, especially in a wet environment. For example, under certain conditions (for example in a wet environment), charging systems must be protected against accidental contact.

The JP 2008054424 discloses a charging system for charging an electric vehicle.

The object of the present invention is thus to provide an improved contact protection for a conductive charging system in which an electric vehicle is charged via the vehicle underbody.

This object is achieved by a charging system and a method according to the independent patent claims. Useful further developments result from the subclaims.

One aspect of the invention relates to a charging system for performing an electrical charging process of a vehicle with an electrical charging station, the electrical charging station being contactable with a vehicle-side contacting unit of the vehicle depending on the charging state of the charging system in order to perform the electrical charging process. The charging system has a cover device which has at least one movable cover element, with the at least one cover element being able to cover a charging area of the electric charging station as a function of the charge status of the charging system. The covering device assumes a first covering state when no charging process is being carried out, with the charging area being completely covered with the at least one covering element in the first covering state. The cover device assumes a second cover state when a charging process is imminent and the electric charging station is contacted with the vehicle, the charging area being completely open in the second cover state. The covering device assumes a third covering state when a charging process is carried out, wherein in the third covering state the charging area is covered with the at least one covering element in such a way that it forms a passage gap for the vehicle-side contacting unit.

With the proposed charging system it can be prevented that no live elements are accessible to persons during an electrical charging process of a vehicle. This can protect people from an electric shock while the vehicle is being electrically charged. This is particularly advantageous when it is wet or when there is high humidity in the vicinity of the charging system. Covering the charging area prevents people from accidentally touching exposed and live electrical contacts. In particular, protection against accidental contact is created for an ACDU system as a charging system. In particular, the charging system can be an ACDU system with protective low voltage.

The vehicle is in particular an electric vehicle or a hybrid vehicle or a plug-in vehicle. An electrical energy storage device in the vehicle can be charged with the aid of the charging system. In particular, the covering device automatically and in particular independently assumes the respective covering state as a function of the charge state.

Another aspect of the invention relates to a method for covering a charging area of an electric charging station, the charging area of the electric charging station being automatically covered with at least one cover element of a covering device as a function of a state of charge of the electric charging station. The charging area is completely covered with the at least one cover element when no charging process is being carried out at the electrical charging station. The charging area is completely opened when a charging process is imminent and the electrical charging station is contacted, and the charging area is covered with the at least one cover element in such a way that a passage gap is formed for a vehicle-side contacting unit when a charging process is carried out. In particular, what has just been described Method can be carried out with a charging system according to the previous aspect or a development thereof.

Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and on the basis of the drawing (s). The features and combinations of features mentioned above in the description as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination, but also in other combinations or alone, without the scope of the Invention to leave.

• 1 eine schematische Darstellung eines Ladesystem;
• 2 eine schematische Darstellung einer Kontaktierungsschiene;
• 3a eine Abdeckvorrichtung des Ladesystems aus 1 in einem ersten Abdeckzustand;
• 3b die Abdeckvorrichtung aus 3a in einem zweiten Abdeckzustand; und
• 3c die Abdeckvorrichtung aus 3a in einem dritten Abdeckzustand.

The following figures show in:

• 1 a schematic representation of a charging system;
• 2 a schematic representation of a contacting rail;
• 3a a cover device of the charging system 1 in a first covering state;
• 3b the cover off 3a in a second covering state; and
• 3c the cover off 3a in a third covering state.

In the figures, functionally identical elements are provided with the same reference symbols.

1 shows a schematic representation of a charging system 1 for performing an electrical charging process of a vehicle 2 . In particular, the electrical charging process takes place by means of an electrical charging station 3 . For example, the electric charging station 3 depending on a state of charge of the charging system 1 with a vehicle-side contacting unit 4th of the vehicle 2 be contacted. In this way, the electrical charging process in particular can be carried out. In particular, a conductive charging process can be carried out.

With the charging system 1 for example, it can be an ACDU system. This ACDU system enables conductive electrical charging via the vehicle underbody 5 of the vehicle 2 . This is where the vehicle 2 at a predetermined position above the electric charging station 3 positioned. The contacting unit 4th is especially on the vehicle underbody 5 arranged. In particular, it takes place via the vehicle underbody 5 the electrical contacting of the contacting unit 4th with the electric charging station 3 .

In particular, the vehicle-side contacting unit 4th be designed as a pantograph. At a distal end of the contacting unit 4th has the contacting unit 4th a contact rail 6th on. Using the contact rail 6th can contact elements 7th the electric charging station 3 be contacted. The contacting elements 7th can for example be designed as contact rails. In particular, the contacting elements 7th within a loading area 8th the electric charging station 3 arranged. In particular, these are arranged so that the contacting rail 6th the contacting unit 4th the contacting elements 7th contacted extensively.

For example, the contacting unit 4th an on-board unit of the vehicle 2 . With the components of the electric charging station 3 it is especially off-board components.

For example, the contacting rail 6th the vehicle-side contacting unit 4th at one of the loading area 8th facing away from a contact protection rail 9 exhibit. This allows the vehicle to be charged 2 the energized contact rail 6th must be protected so that a person cannot accidentally touch them and receive an electric shock. Thus, an improved protection measure can be provided for people during the electric charging process. With the contact protection rail 9 it is, for example, a plastic cover. With the contact protection rail 9 becomes the loading area in particular 8th remote side of the contacting rail 6th completely, at least partially covered. This is especially true in the 2 to see.

In the following figures 3a to 3c are different embodiments of the charging system 1 shown. In particular, it shows how and when the loading area is 8th the electric charging station 3 can be covered. Contact protection for an ACDU system can thus be provided or created.

In particular, the charging system 1 a covering device 10 on. Using the cover device 10 is an improved contact protection for the charging system 1 created. The covering device 10 has at least one movable cover element 11 , 12 on. In the at least one cover element 11 , 12 it can be for example articulated doors or segment covers or compartment covers or lamellar covers or a bellows or a blind. In particular, the at least one movable cover element can 11 , 12 using the cover device 10 can be controlled so that the loading area 8th can be covered or opened as desired.

With the at least one cover element 11 , 12 can the loading area 8th the electric charging station 3 depending on the state of charge of the charging system 1 covered automatically. In particular, the covering device 10 assume different cover states or operating states. The different operating states or cover states are in the 3a to 3c shown.

In particular, the covering device 10 a first and a second movable cover element 11 , 12 on. The first and second cover elements 11 , 12 can for example be designed as a lamella cover.

In particular, the first and second cover element 11 , 12 depending on the covering state of the covering device 10 rolled up or rolled up.

Specifically shows the 3a a first covering state of the covering device 10 . The first covering state is carried out by the covering device 10 taken when the vehicle is not charging 2 is carried out. The loading area is in the first covering state 8th with the first and second cover element 11 , 12 completely covered. Thus, the electrical components of the electrical charging station 3 Protected from environmental influences and / or damage when not in use.

The 3b shows a second covering state of the covering device 10 . The second covering state is then carried out by the covering device 10 taken when a charging process is imminent and the electric charging station 3 with the vehicle 2 is contacted. For this purpose, the loading area is opened with the aid of the second cover state 8th completely, at least in some areas, open. In particular, the second covering state is the covering device 10 in the 1 shown. For example, when the vehicle is approaching 2 to the electric charging station 3 the loading area 8th using the cover elements 11 , 12 opened automatically. Thus, the contacting unit 4th of the vehicle 2 the contacting elements 7th the electric charging station 3 to contact.

The 3c shows a third covering state of the covering device 10 . The third covering state is then carried out by the covering device 10 taken when charging is in progress. For the current charging process, the charging area 8th except for a small area for the contact rail 6th closed. In particular, the contacting elements 11 , 12 moved in such a way, in particular moved towards each other, that a pass-through gap 13 is formed. The penetration gap 13 is designed such that only the contacting rail 6th in the loading area 8th protrudes. The upper side of the contact rail 6th is made using the contact protection rail 9 protected from contact. In particular, there is a gap width of the penetration gap 13 smaller a diameter of the contacting rail 6th or less than or equal to the diameter of the contacting rail 6th or equal to the diameter of the contacting rail 6th . With the help of the gap width of the pass-through gap 13 you can define how far the contacting rail is 6th in the loading area 8th is inserted or immersed. Thus, depending on the type of contacting rail 6th and / or according to the conditions of the charging station 3 the gap width using the covering device 10 set automatically.

List of reference symbols

1

Charging system

2

vehicle

3

electric charging station

4th

Contacting unit

5

Vehicle underbody

6th

Contacting rail

7th

Contacting elements

8th

Loading area

9

Contact protection rail

10

Covering device

11

first cover element

12

second cover element

13

Pass-through gap

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• JP 2008054424 [0004]

Claims (7)

Charging system (1) for carrying out an electric charging process of a vehicle (2), with - an electric charging station (3), the electric charging station (3) with a vehicle-side contacting unit (4) of the vehicle depending on a charge state of the charging system (1) (2) can be contacted in order to carry out the electrical charging process, characterized in that - the charging system (1) has a cover device (10) which has at least one movable cover element (11, 12), wherein - with the at least one cover element (11 , 12) a charging area (8) of the electric charging station (3) can be covered depending on the charging state of the charging system (1), - the covering device (10) assumes a first covering state when no charging process is being carried out, the charging area in the first covering state (8) is completely covered with the at least one cover element (11, 12), and - the cover device (10) assumes a second covering state when a charging process is imminent and the electric charging station (3) is contacted with the vehicle (2), the charging area (8) being fully open in the second cover state, and the cover device (10) assumes a third cover state when a charging process is carried out , wherein in the third covering state the loading area (8) is covered with the at least one cover element (11, 12) in such a way that a penetration gap (13) is formed for the vehicle-side contacting unit (4). Charging system (1) Claim 1 , characterized in that the vehicle-side contacting unit (4), which is designed in particular as a pantograph, has a contacting rail (6), the contacting rail (6) with contacting elements (7) of the electrical charging station (3) which are in the charging area for the charging process (8) are arranged, can be contacted. Charging system (1) Claim 2 , characterized in that a gap width of the pass-through gap (13) is less than a diameter of the contacting rail (6) or less than or equal to the diameter of the contacting rail (6) or equal to the diameter of the contacting rail (6). Loading system (1) according to one of the preceding claims, characterized in that the cover device (10) has a first and a second movable cover element (11, 12), in particular the cover elements (11, 12) are designed as lamellar covers. Charging system (1) Claim 4 , characterized in that the first and second cover elements (11, 12) can be rolled up or rolled up depending on the covering state of the cover device (10). Charging system (1) according to one of the preceding claims, characterized in that the contacting rail (6) of the vehicle-side contacting unit (4) has a contact protection rail (9) on a side facing away from the charging area (8). Method for covering a charging area (8) of an electric charging station (3), wherein - With at least one cover element (11, 12) of a cover device (10), the charging area (8) of the electric charging station (3) is automatically covered as a function of a state of charge of the electric charging station (3), wherein - The charging area (8) is completely covered with the at least one cover element (11, 12) when no charging process is being carried out at the electrical charging station (3), and - The charging area (8) is fully opened when a charging process is imminent and the electrical charging station (3) is contacted, and - The loading area (8) is covered with the at least one cover element (11, 12) in such a way that a pass-through gap (13) for a vehicle-side contacting unit (4) is formed when a loading process is carried out.

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