DE102021001423A1 - Contacting device for an electric charging system of an electrically operated vehicle - Google Patents

Abstract

The invention relates to a contacting device (100) for an electrical charging system of an electrically operated vehicle (200) with a longitudinal extension (220) and a transverse extension (222), comprising at least one first contacting unit (10), which is arranged as a continuous belt (12) along the Transverse extension (222) from one side of the vehicle (202) to the other side (204) of the vehicle, the endless belt (12) being designed as a carrier belt (14) and a current-carrying belt (16), which has at least two adjacent conductor tracks (18, 20 ) having; a second contacting unit (30) which is permanently connected to the first contacting unit (10) in electrical contact with the current-carrying strip (16) and which has a charging connection for a charging plug (214). The first contacting unit (10) is electrically connected to an energy store (50) of the vehicle (200) via current collectors (40, 42). The second contacting unit (30) is arranged to be linearly displaceable in the transverse extent (222) via the first contacting unit (10). The invention also relates to an electrically operated vehicle (200) and a method.

Description

The invention relates to a contacting device for an electrical charging system of an electrically operated vehicle, as well as an electrically operated vehicle and a method for charging an electrical energy store of an electrically operated vehicle with a contacting device.

Battery-powered electric vehicles need to be charged. On the vehicles themselves, this is usually done by inserting a charging plug of a charging cable at different points on the vehicle. Mainly known are charging sockets on the left or right side wall of a vehicle, in the front area on fenders or in the rear area as well as centrally arranged charging sockets, for example under the vehicle logo in the radiator grille or on the tailgate. Basically, an additional opening with a flap or a mechanism is always required. The openings are also always exposed to the weather.

The DE 10 2019 004 015 A1 discloses a motor vehicle with an electrical drive unit, with an electrical energy store which provides electrical energy for the electrical drive unit, and with a charging device for electrically charging the electrical energy store. The charging device is arranged in an upper region of the trunk and is designed to receive a standard charging plug with a charging cable. In a trunk edge area of the trunk there is a trough-shaped recess for the passage of a charging cable of the charging device.

One object of the invention is to create an ergonomically favorable contacting device for an electrical charging system of an electrically operated vehicle.

Another object is to create an electrically operated vehicle with an ergonomically favorable contacting device for an electrical charging system.

Another object is to specify a method for charging an electrical energy store of an electrically operated vehicle with an ergonomically favorable contacting device for an electrical charging system.

The aforementioned objects are achieved with the features of the independent claims.

Favorable configurations and advantages of the invention emerge from the further claims, the description and the drawing.

According to one aspect of the invention, a contacting device for an electric charging system of an electrically operated vehicle with a longitudinal extension and a transverse extension is proposed, comprising at least one first contacting unit, which is arranged as a circumferential endless belt along the transverse extension from one side of the vehicle to the other side of the vehicle, the endless belt as a carrier tape and a current-carrying tape is formed which has at least two current conductor tracks lying next to one another; and a second contacting unit which is permanently connected to the current-carrying strip with the first contacting unit and which has a charging connection for a charging plug. The first contacting unit is electrically connected to an energy store of the vehicle via current collectors. The second contacting unit is arranged to be linearly displaceable in the transverse extent over the first contacting unit.

In the contacting device according to the invention, the contacting takes place by means of a charging plug from an underside on a rear roof spoiler integrated on the vehicle. These rear roof spoilers can now be found on almost every vehicle and are, in particular, standard in the so-called “SUV form” of the electric vehicles, and are also usually extremely voluminous.

By taking advantage of this natural covering by the rear roof spoiler, the contacting device can be arranged in a weatherproof manner, in contrast to the charging plug contact systems that are usually found and their arrangement, for example on the vehicle side walls with previous tank flaps, or on the front of the vehicle, for example behind the vehicle logo .

Due to the new contacting device, both the charging plug and the so-called charging socket on the vehicle are almost completely protected against the effects of the weather, in particular from above by rain, snow and icing.

In addition, it is possible with the new contacting device to elegantly cover both sides of the vehicle with regard to an optimal charging cable route, since the actual contacting device is arranged to be displaceable in the transverse direction of the vehicle. Unfavorable and long charging cable runs to a charging station can be avoided in this way.

The contacting device according to the invention is completely integrated in the rear roof spoiler and, so to speak, “invisible” from the outside. The The contacting device itself is supplied with power by a circulating endless belt with two separate current-carrying paths, or it conducts the power on to the two fixed current collectors during the charging process. The external carrier tape completely covers the current-carrying components and protects them at the same time.

According to an advantageous embodiment of the contacting device, the carrier tape can form an outside of the endless belt and the current-carrying belt can be arranged on an inside of the endless belt. As a result, the current-carrying band is advantageously protected from the effects of the weather and from unwanted contact.

According to an advantageous embodiment of the contacting device, the first contacting unit can be arranged covered in a cover, wherein the second contacting unit can protrude from the cover. In this way, the contacting device is protected from the effects of the weather and from undesired contact. The second contacting unit with the charging socket is arranged so that it is accessible in a suitable manner for plugging in the charging plug.

According to an advantageous embodiment of the contacting device, the current collectors can be electrically connected to the current-carrying strip via sliding contacts. As a result, the electrical contacting of the current-carrying band can also be ensured when the endless band is displaced in order to position the second contacting unit on the desired side of the vehicle for plugging in the charging plug.

According to an advantageous embodiment of the contacting device, the encircling endless belt of the first contacting unit can be arranged to be circumferentially movable over at least two rollers along the transverse extent from one side of the vehicle to the other side of the vehicle. In this way, the endless belt of the second contacting unit connected to it can simply be shifted in order to position the charging socket on the desired side of the vehicle.

According to an advantageous embodiment of the contacting device, the circulating endless belt can be moved in the transverse direction. In particular, the circulating endless belt can be driven by an electric motor. In this way, the second contacting unit can be easily positioned on the correct side as soon as it approaches the charging station. It can be operated, for example, via a switch and the vehicle automatically recognizes the charging station.

According to an advantageous embodiment of the contacting device, the first contacting unit can be designed to be controllable by a charging station. In particular, the first contacting unit can be controlled by the charging station in such a way that the second contacting unit can be moved in the direction of the charging station. Alternatively or additionally, the second contacting unit can have an optical display, in particular a flashing light display.

In a further exemplary embodiment, the contacting device can, for example, also be designed to be driven by an electric motor. If, for example, an electrically operated vehicle equipped with the contacting device approaches a charging station and if this is, for example, to the right of the vehicle, this can be recognized by the vehicle, for example by an integrated 360 ° camera system. A control unit then transmits the signal to the drive of the contacting device to align or position it on the right-hand side of the vehicle. In addition, this position can be visualized by a flashing display on the contacting device so that the vehicle user can immediately see where the new contacting device is located

According to a further aspect of the invention, an electrically operated vehicle with a longitudinal extension and a transverse extension is proposed, comprising an electrical energy store and a contacting device for an electrical charging system for the electrical energy store, comprising at least one first contacting unit, which is designed as a continuous belt along the transverse extension of a Vehicle side is arranged to the other vehicle side, wherein the endless belt is designed as a carrier belt and a current-carrying belt, which has at least two adjacent conductor tracks; and a second contacting unit which is permanently connected to the current-carrying strip with the first contacting unit and which has a charging connection for a charging plug. The first contacting unit is electrically connected to the energy store of the vehicle via current collectors. The second contacting unit is arranged to be linearly displaceable in the transverse extent over the first contacting unit. The contacting device is arranged below a rear roof spoiler of the vehicle. The electrical energy store can be charged via the contacting device when the charging plug is properly inserted into the second contacting unit.

In the contacting device of the proposed vehicle, the contact is made to the Charging of the electrical energy storage device by means of a charging plug from an underside on a rear roof spoiler integrated into the vehicle. These rear roof spoilers can now be found on almost every vehicle and are, in particular, standard on electric vehicles, which tend to be in the so-called "SUV form", and are usually extremely voluminous.

By taking advantage of this natural covering by the rear roof spoiler, the contacting device can be arranged in a weatherproof manner, in contrast to the charging plug contact systems that are usually found and their arrangement, for example on the vehicle side walls with previous tank flaps, or on the front of the vehicle, for example behind the vehicle logo .

By means of the contacting device, both the charging plug and the so-called charging socket on the vehicle are almost completely protected against the effects of the weather, in particular from above by rain, snow, and icing.

In addition, it becomes possible with the contacting device to elegantly cover both sides of the vehicle with regard to an optimal charging cable route, since the actual contacting device is arranged to be displaceable in the transverse direction of the vehicle. Unfavorable and long charging cable runs to a charging station can be avoided in this way.

The contacting device is completely integrated in the rear roof spoiler and is, so to speak, "invisible" from the outside. The contacting device itself is supplied with power by a circulating endless belt with two separate current-carrying tracks, or it conducts the power on to the two fixed current collectors during the charging process. The external carrier tape completely covers the current-carrying components and protects them at the same time.

According to a further aspect of the invention, an electrically operated vehicle with a longitudinal extension and a transverse extension is proposed, comprising an electrical energy store and at least two contacting devices for an electrical charging system for the electrical energy store, the electrical energy store being chargeable via one of the two contacting devices and / or can be charged simultaneously via both contacting devices.

An exemplary embodiment can also advantageously be represented in which two complete contacting devices are used independently of one another, for example arranged one behind the other. This has the advantage that charging can be carried out at two spatially separated charging stations at the same time, which means that the charging process or charging time can be reduced by half. The vehicle electronics can separate the electrical energy storage device into two charging circuits so that the charging circuits can be charged separately and thus the energy storage device can be charged at twice the speed.

According to a further aspect of the invention, a method for charging an electrical energy store of an electrically operated vehicle with a contacting device for an electrical charging system is proposed, comprising at least the steps of moving the vehicle up to a charging station; Actuating the contacting device in order to move the second contacting unit to a side of the vehicle which is close to the charging station; Inserting a charging plug of a charging cable into a charging connection of the second contacting unit; and charging the electrical energy store.

According to the method according to the invention, the electrical energy store of an electrically operated vehicle can be charged in a simple manner. After the vehicle has approached the charging station, the second contacting unit is positioned on the correct side of the vehicle so that the charging cable can be plugged in cheaply.

With the contacting device, it is possible to elegantly cover both sides of the vehicle with regard to an optimal charging cable run, since the actual contacting device is arranged to be displaceable in the transverse direction of the vehicle. Unfavorable and long charging cable runs to a charging station can be avoided in this way. In addition, due to the arrangement integrated in the rear roof spoiler, the contacting device can be contacted in a weatherproof manner. This means that the energy storage device can be charged easily and safely.

Further advantages emerge from the following description of the drawings. In the drawings, an embodiment of the invention is shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

• 1 eine Seitenansicht eines elektrisch betreibbaren Fahrzeugs mit einer Kontaktierungsvorrichtung nach einem Ausführungsbeispiel der Erfindung;
• 2 eine Heckansicht des Fahrzeugs nach 1 mit angeschlossenem Ladekabel einer Ladestation;
• 3 eine schematische Draufsicht auf die erfindungsgemäße Kontaktierungsvorrichtung für ein elektrisches Ladesystem von einer Heckseite des Fahrzeugs aus gesehen, mit eingezeichneter Schnittebene IV-IV;
• 4 eine Schnittdarstellung der Kontaktierungsvorrichtung gemäß der Schnittebene IV-IV nach 3; und
• 5 ein Ablaufdiagramm des Verfahrens zum Laden eines elektrischen Energiespeichers eines elektrisch betreibbaren Fahrzeugs mit einer Kontaktierungsvorrichtung für ein elektrisches Ladesystem.

Show:

• 1 a side view of an electrically operated vehicle with a contacting device according to an embodiment of the invention;
• 2 a rear view of the vehicle according to 1 with a charging cable connected to a charging station;
• 3 a schematic plan view of the contacting device according to the invention for an electrical charging system seen from a rear side of the vehicle, with the sectional plane IV-IV drawn;
• 4th a sectional view of the contacting device according to the section plane IV-IV 3 ; and
• 5 a flowchart of the method for charging an electrical energy store of an electrically operated vehicle with a contacting device for an electrical charging system.

In the figures, the same or similar components are numbered with the same reference symbols. The figures show only examples and are not to be understood as restrictive.

1 Figure 11 shows a side view of an electrically operated vehicle 200 with a contacting device 100 according to an embodiment of the invention, while in 2 a rear view of the vehicle 200 to 1 with connected charging cable 212 a charging station 210 is shown.

3 shows a schematic plan view of the contacting device according to the invention 100 for an electric charging system from a rear side of the vehicle 200 seen from. In 4th FIG. 13 is a sectional view through the contacting device in FIG 3 can be seen in the section plane IV-IV.

The vehicle 200 has a longitudinal extension 220 and a transverse extension 222 on. For aerodynamic reasons, there is a rear roof spoiler at the rear end of the vehicle roof 206 arranged. The rear roof spoiler 206 is in 3 only indicated schematically.

The vehicle 200 includes an electrical energy store 50 located inside the vehicle 200 is not visibly arranged and is therefore shown in dashed lines.

The contacting device 100 is below the rear roof spoiler 206 of the vehicle 200 Arranged protected from the weather. The contacting device 100 is completely in the rear roof spoiler 206 integrated.

The electrical energy store 50 can be via the contacting device 100 via the intended into the second contacting unit 30th inserted charging plug 214 getting charged.

The contacting device 100 comprises a first contacting unit 10 , which as a revolving endless belt 12th along the transverse extent 222 of the vehicle 200 from one side of the vehicle 202 to the other side of the vehicle 204 is arranged. The endless belt 12th is called a carrier tape 14th and a current carrying tape disposed thereon 16 formed, which has two adjacent conductor tracks 18th , 20th having. The conductor tracks 18th , 20th are in the sectional view in 4th to recognize.

The carrier tape 14th forms an outside 22nd of the endless belt 12th while the live tape 16 on an inside 32 of the endless belt 12th is arranged and is thus protected from unwanted contact. The external carrier tape 14th completely covers the live components and protects them at the same time.

The contacting device 100 further comprises a second contacting unit 30th which are in electrical contact with the current-carrying belt 16 with the first contacting unit 10 is firmly connected and which has an invisible charging connection for a charging plug 214 having.

The first contacting unit 10 is about pantograph 40 , 42 with an energy store 50 of the vehicle 200 electrically connected. The pantograph 40 , 42 are for example via sliding contacts with the current-carrying belt 16 electrically connected.

The second contacting unit 30th is via the first contacting unit 10 in the transverse extension 222 arranged to be linearly displaceable. The circulating endless belt can do this 12th the first contacting unit 10 expediently over two roles 26th , 28 along the transverse extent 222 from one side of the vehicle 202 to the other side of the vehicle 204 be moved all around. In the sectional view in 4th Fig. 3 is a plan view of a roller 26th although not arranged in the cutting plane.

The first contacting unit 10 can be covered in a cover 24 be arranged, the second contacting unit 30th out of the cover 24 protrudes so that a charging plug 214 can be plugged. The cover 24 is in the 3 and 4th shown only schematically as a dashed box.

The charging plug 214 of the charging cable 212 is in 3 recognizable from the underside and therefore protected from the weather.

The circulating endless belt 12th can in the transverse extension 222 of the vehicle 200 , i.e. from one side of the vehicle 202 to the other side of the vehicle 204 be moved.

The contact is made by means of a charging plug 214 from an underside into the contacting device 100 on the rear roof spoiler integrated in the vehicle 206 . Taking advantage of this natural cover through the rear roof spoiler 206 is the contacting device 100 arranged so protected from the weather. So are both the charging plug 214 as well as the vehicle-side charging socket almost completely protected against weather influences, especially from above by rain, snow, icing.

In addition, it becomes possible with the contacting device 100 both sides of the vehicle 202 , 204 to cover with regard to an optimal charging cable route, since the actual contacting device 100 in transverse extension 222 of the vehicle 200 is arranged displaceably. Unfavorable and long charging cables leading to a charging station 210 can be circumvented in this way.

The endless belt 12th can be driven by an electric motor in particular in one embodiment. The first contacting unit 10 can then through the charging station 210 be controlled so that the second contacting unit 30th towards the charging station 210 can be moved. The second contacting unit can 30th for example when the vehicle is approaching 200 to a charging station 210 automatically to the correct side of the vehicle 202 , 204 be positioned.

The second contacting unit can also 30th have an optical display, in particular a flashing light display, so that the vehicle user uses the second contacting unit 30th recognizes clearly visible even in the dark when inserting the charging plug.

In an alternative embodiment, the vehicle 200 two contacting devices 100 for an electrical charging system for the electrical energy store 50, the electrical energy store 50 each via one of the two contacting devices 100 and / or via both contacting devices 100 can be loaded at the same time.

5 FIG. 3 shows a flow chart of the method for charging an electrical energy store 50 of an electrically operable vehicle 200 with a contacting device 100 for an electric charging system.

According to the method, the process starts in step S100 with the approaching of the vehicle 200 to a charging station 210 .

Then, in step S102, the contacting device 100 manually or automatically operated to the second contacting unit 30th on one side of the vehicle 202 , 204 to move which one close to the charging station 210 is.

Thereafter, in step S104, the charging plug 214 a charging cable 212 into the charging connection of the second contacting unit 30th the contacting device 100 plugged.

The electrical energy store 50 can then be charged in step S106.

List of reference symbols

10

first contacting unit

12th

Endless belt

14th

Carrier tape

16

live tape

18th

Conductor track

20th

Conductor track

22nd

Outside

24

Cover unit

26th

role

28

role

30th

second contacting unit

32

inside

40

Pantograph

42

Pantograph

100

Contacting device

200

vehicle

202

Vehicle side

204

Vehicle side

206

Roof edge spoiler

210

Charging station

212

Charging cable

214

Charging plug

220

Longitudinal extension

222

Transverse extension

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

• DE 102019004015 A1 [0003]

Claims (10)

Contacting device (100) for an electric charging system of an electrically operated vehicle (200) with a longitudinal extension (220) and a transverse extension (222), comprising at least - A first contacting unit (10) which is arranged as a circulating endless belt (12) along the transverse extension (222) from one side of the vehicle (202) to the other side of the vehicle (204), the endless belt (12) as a carrier belt (14) and a a current-carrying band (16) is formed which has at least two current conductor tracks (18, 20) lying next to one another; - A second contacting unit (30) which is permanently connected to the first contacting unit (10) in electrical contact with the current-carrying strip (16) and which has a charging connection for a charging plug (214); wherein the first contacting unit (10) is electrically connected to an energy store (50) of the vehicle (200) via current collectors (40, 42), the second contacting unit (30) being linear in the transverse extent (222) via the first contacting unit (10) is arranged displaceably. Contacting device according to Claim 1 wherein the carrier tape (14) forms an outside (22) of the endless belt (12) and the current-carrying belt (16) is arranged on an inside (32) of the endless belt (12). Contacting device according to Claim 1 or 2 , wherein the first contacting unit (10) is arranged covered in a cover (24), the second contacting unit (30) protruding from the cover (24). Contacting device according to one of the preceding claims, wherein the current collectors (40, 42) are electrically connected to the current-carrying strip (16) via sliding contacts. Contacting device according to one of the preceding claims, wherein the circulating endless belt (12) of the first contacting unit (10) can be moved circumferentially via at least two rollers (26, 28) along the transverse extension (222) from one side of the vehicle (202) to the other side (204) of the vehicle is arranged. Contacting device according to one of the preceding claims, wherein the circulating endless belt (12) can be moved in the transverse extension (222), in particular can be driven via an electric motor. Contacting device according to Claim 6 , wherein the first contacting unit (10) is designed to be controllable by a charging station (210), in particular wherein the first contacting unit (10) can be controlled by the charging station (210) in such a way that the second contacting unit (30) is in the direction of the charging station (210) is movable, and / or wherein the second contacting unit (30) can have an optical display, in particular a flashing light display. Electrically operated vehicle (200) with a longitudinal extension (220) and a transverse extension (222), comprising an electrical energy store (50) and a contacting device (100) for an electrical charging system for the electrical energy store (50), according to one of the preceding claims, comprehensive at least - A first contacting unit (10) which is arranged as a circulating endless belt (12) along the transverse extension (222) from one side of the vehicle (202) to the other side of the vehicle (204), the endless belt (12) as a carrier belt (14) and a a current-carrying band (16) is formed which has at least two current conductor tracks (18, 20) lying next to one another; - A second contacting unit (30) which is permanently connected to the first contacting unit (10) in electrical contact with the current-carrying strip (16) and which has a charging connection for a charging plug (214); the first contacting unit (10) being electrically connected to the energy store (50) of the vehicle (200) via current collectors (40, 42), the second contacting unit (30) being linearly transversely (222) via the first contacting unit (10) is arranged displaceably, the contacting device (100) being arranged below a rear roof spoiler (206) of the vehicle (200), the electrical energy store (50) via the contacting device (100) when the charging plug (214) is properly inserted into the second contacting unit (30) ) is loadable. Electrically operated vehicle (200) with a longitudinal extension (220) and a transverse extension (222), comprising an electrical energy store (50) and at least two contacting devices (100) for an electrical charging system for the electrical energy store (50), according to one of the Claims 1 to 7th wherein the electrical energy store (50) can be charged via one of the two contacting devices (100) and / or can be charged simultaneously via both contacting devices (100). Method for charging an electrical energy store (50) of an electrically operated vehicle (200) with a contacting device (100) for an electrical charging system according to one of the Claims 1 to 7th , comprising at least the steps - Approaching the vehicle (200) to a charging station (210); - actuation of the contacting device (100) in order to move the second contacting unit (30) to a side of the vehicle (202, 204) which is close to the charging station (210); - Inserting a charging plug (214) of a charging cable (212) into a charging connection of the second contacting unit (30); - Charging the electrical energy store (50).

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