DE102021006076A1 - Charging connection device for an electrically powered vehicle - Google Patents

Abstract

The invention relates to a charging connection device (100) for an electrically drivable vehicle with two charging connections (12, 22) arranged next to one another, which are electrically coupled via a common electrical path (30) and which each have contact elements (14, 16, 24), which are assigned at least one charging mode. The charging connection device (100) further comprises a cover arrangement (50) which comprises at least one movably mounted cover element (51, 52), a first cover element (51) being designed as a perforated mask (40) with at least one recess (44, 45, 46). is. In at least one releasing position, the perforated mask (40) at least partially releases contact elements (14, 16) of the first charging connection (12) and covers contact elements (24) of the second charging connection (22). In at least one further releasing position, the perforated mask (40) covers contact elements (14, 16) of the first charging connection (12) and at least partially releases contact elements (24) of the second charging connection (22).

Description

The invention relates to a charging connection device for an electrically driven vehicle with two charging connections.

the DE102021000307A1 discloses a charging connection device for an electrically drivable vehicle with two charging connections arranged next to one another with a first direct current charging connection and a second direct current and/or alternating current charging connection. In addition, the charging connection device comprises at least one charging connection cover, which covers at least one of the two charging connections. The charging connection cover is designed in such a way that only one of the two charging connections is accessible for making contact, while the other of the two charging connections is covered by the charging connection cover.

According to the state of the art, electric cars require a separate charging connection for each charging standard and therefore two charging connections are provided on the vehicle for two charging options of different standards.

A charging standard may include direct current charging, meaning direct current charging, or alternating current charging, meaning alternating current charging.

A charging standard currently used in Europe, for example, is the so-called Combined Charging System (CCS). Charging with direct current and alternating current is possible. Another standard CHAdeMO = "Charge de Move" as a standard developed in Japan offers a charging capacity of up to 50 kW.

For alternative or future charging standards with outputs of several hundred kilowatts or even more with outputs of at least one megawatt and more, a further charging connection, in particular a DC voltage connection, is provided according to a further, alternative plug standard. Several charging connections can be electrically connected in one path, so that the charging sockets are live at the same time.

An object of the invention is to create an improved charging connection device for an electrically powered vehicle with two charging connections.

The aforementioned object is achieved with the features of the independent claim.

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

According to one aspect of the invention, a charging connection device for an electrically drivable vehicle is proposed with two charging connections arranged next to one another, in particular charging sockets, which are electrically coupled via a common electrical path. The charging connections each have contact elements which are each assigned to at least one charging mode. The charging connection device also includes a cover arrangement, which includes at least one movably mounted cover element. A first covering element is designed as a perforated mask with at least one recess. In at least one releasing position, the perforated mask at least partially releases contact elements of the first charging connection and covers contact elements of the second charging connection. In at least one further releasing position, the perforated mask covers contact elements of the first charging connection and at least partially releases contact elements of the second charging connection. As a result, during a charging process, only contact elements assigned to a current charging mode are accessible for making contact, while other contact elements are covered by the shadow mask, in particular covered so that they cannot be touched.

A charging connection is understood below to mean a device, for example a charging socket, which is electrically coupled to an energy store and which can be electrically connected to a corresponding plug which is electrically coupled to a voltage source. In the connected state, the energy store of the electrically drivable vehicle is charged by the voltage source. The charging connection has contact elements which are arranged in the form of a plug face, the plug having a plug face with contact elements arranged congruently with contact elements of the charging connection.

Thanks to a shared electrical path for the two charging connections, it is sufficient to use just one contactor in the electrical architecture of the vehicle's high-voltage on-board network to connect the electrical energy storage device. In this way, costs, installation space and weight can be saved compared to an interconnection with two contactors. If the two charging connections are arranged in a shared electrical path, both charging connections are live at the same time.

Due to the cover arrangement, one of the charging connections can be switched to a voltage-free state be dispensed with in an advantageous manner. As a result, a corresponding switching device, a so-called switch box, can be dispensed with, as a result of which additional costs and additional installation space can be saved.

The shadow mask can correspond to a perforated sheet of spring steel or another suitable element or another material. In addition, the shadow mask can be moved fully automatically or semi-automatically between the positions.

According to an advantageous embodiment of the charging connection device, the shadow mask can be arranged circumferentially. Alternatively or additionally, the shadow mask can be rolled up and/or unrolled on rollers at opposite end regions. By means of a suitable roller arrangement or another arrangement, a space-saving circumferential arrangement of the shadow mask or a space-saving unrollable and rollable arrangement can be implemented. In addition or as an alternative, the shadow mask can be arranged in a displaceable manner. In this case, the arrangement can be selected depending on the length of the shadow mask and can be adapted to an installation space. The shadow mask or portions of the shadow mask can be moved horizontally or vertically with respect to the charging ports.

According to an advantageous embodiment of the charging connection device, the shadow mask can have a plurality of sections which can each be moved via plug faces, in particular parallel to the plug faces of the charging connections. In this case, a section with a suitable recess can be arranged in a first position of the shadow mask over a first mating face, with the recess releasing this mating face and the other mating faces being covered by the solid material of the shadow mask. In a second position of the shadow mask, the same section can be arranged over another mating face, with the recess releasing this mating face and the other mating faces being covered by the solid material of the shadow mask. In this case, a plurality of states of the charging connection device can be implemented by moving a section with a recess. According to an advantageous embodiment of the charging connection device, each section can be assigned to a charging mode and a position of the shadow mask assigned to the charging mode, the sections each having a hole pattern with at least one recess which releases the contact elements assigned to the charging mode in the corresponding releasing position. If a charging mode is detected, the shadow mask is transferred to the position assigned to the charging mode, with a section having a predetermined hole pattern assigned to the charging mode being arranged over the contact elements in this position. In this case, the hole pattern releases only the contact elements through the recess or recesses, which are assigned to the charging mode.

According to an advantageous embodiment of the charging connection device, at least one of the two charging connections can be designed as a combined DC-AC charging connection, in particular as a CCS charging connection with two types of contact elements. AC contact elements form a first mating face, which can be coupled to a mating face of a connector with congruent contact elements in order to charge the vehicle or its energy store with alternating current in a CCS alternating current charging mode. DC contact elements form a second mating face. A plug, which is coupled to the combined direct current/alternating current charging connection in order to charge the vehicle or its energy storage device in CCS direct current charging mode with direct current, has two plug faces which are coupled to the two plug faces of the combined direct current/alternating current charging connection be able. The other charging port may be a DC charging port or an AC charging port or another combined DC-AC charging port.

According to an advantageous embodiment of the charging connection device, the recess in the hole pattern of a first section can release the AC contact elements of the combined DC-AC charging connection in a first releasing position of the shadow mask. The first section is assigned to the CCS AC charging mode. Due to the first section and the first position of the shadow mask, only the required AC contact elements of the combined DC-AC charging connection can be released during the charging process in the CCS AC charging mode.

According to an advantageous embodiment of the charging connection device, the recess of the hole pattern of a second section can release the AC contact elements and the DC contact elements of the combined DC-AC charging connection in a second releasing position of the shadow mask. The second section is assigned to the CCS direct current charging mode. Due to the second section and the second position of the shadow mask, only the required AC contact elements and the DC contact elements of the combined DC-AC charging connection can be released during the charging process in the CCS direct current charging mode.

According to an advantageous embodiment of the charging connection device, the recess in the hole pattern of a third section can release the contact elements of the further charging connection in a third releasing position of the shadow mask. In this case, the third section is assigned to a further charging mode, for example an alternative charging mode with a very high charging capacity. Due to the third section and the third position of the shadow mask, only the required contact elements of the additional charging connection can be released during the charging process in the additional charging mode.

According to an advantageous embodiment of the charging connection device, a hole pattern of a fourth section can have no recess and the fourth section can cover the charging connections in a fourth position of the shadow mask. As a result, the charging connections can be covered when driving or when parking, without charging the vehicle or its energy storage device.

The portions with the hole patterns of the shadow mask each span the charging ports. When designing the shadow mask, it is possible to use areas that have no recess in two different hole patterns.

Due to the sections with the hole patterns of the shadow mask and the positions of the shadow mask, the charging connection device can have several states, with the DC contact elements of the combined DC-AC charging connection and the other charging connection being covered by the first section of the shadow mask in a first state of the charging connection device be. As a result, in the first state only the AC contact elements of the combined DC-AC charging connection are released for the CCS AC charging mode. In a second state of the charge port device, the other charge port may be covered by the second portion of the shadow mask and the AC contact elements and the DC contact elements of the combined DC-AC charge port may be enabled for the CCS DC charge mode. In a third state, the combined DC-AC charging port can be covered by the second portion of the shadow mask and the other charging port can be at least partially enabled for a corresponding charging mode. If the other charging connection also has different contact elements for different charging modes, further states of the charging connection cover are conceivable. In a fourth state, both charging ports can be covered by the fourth portion of the shadow mask.

Due to these states of the charging connection device, it is only possible to couple a charging plug of a charging cable to the corresponding contact elements of the charging connection if the other charging connection or the contact elements that are not required are covered by the perforated mask so that they cannot be touched. In this way, it can be ensured in an advantageous manner that during the charging of the energy store, the contact elements that are not being used and are live are covered so that they cannot be touched. In addition, the unused, live contact elements can advantageously be protected from environmental influences such as dirt or water.

According to an advantageous embodiment of the charging connection device, the covering arrangement can comprise a second movably mounted covering element which, in a covering position, covers both charging connections and the section of the first covering element arranged above the charging connections and, in a releasing position, at least partially releases the first covering element. The additional second cover element allows the charging connections to be covered after the charging process has ended and protected from being touched and from environmental influences. In addition, the first cover element can be protected by the second cover element from environmental influences, such as dirt or moisture and/or snow. Furthermore, due to the second cover element, the fourth section of the shadow mask, which does not include any recesses and which covers the charging connections in a fourth position of the shadow mask, can be dispensed with. In particular when the charging connections are arranged in a common charging recess, both charging connections and the section of the shadow mask arranged above the charging connections can be covered or at least partially uncovered by the same second cover element designed as a charging recess cover. The second cover element can be arranged on one side of the corresponding loading recess. The cover element can be moved fully automatically or semi-automatically between a position covering the corresponding loading trough and a position at least partially releasing the corresponding loading trough, or released for such a movement.

With the charging connection device according to the invention, it can advantageously be ensured that only one charging connection or certain contact elements are accessible for contacting and the other charging connection or the others Contact elements are each covered safe to touch.

Further advantages result 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 further meaningful combinations.

• 1 eine Ladeanschlussvorrichtung für ein elektrisch antreibbares Fahrzeug mit zwei Ladeanschlüssen nach einem ersten Ausführungsbeispiel der Erfindung mit vollständig abgedeckten Ladeanschlüssen;
• 2 die Ladeanschlussvorrichtung nach 1 mit freigegebenen Wechselstrom-Kontaktelementen des kombinierten Gleichstrom-Wechselstrom-Ladeanschlusses;
• 3 die Ladeanschlussvorrichtung nach 1 und 2 mit freigegebenen Wechselstrom-Kontaktelementen und Gleichstromkontaktelementen des kombinierten Gleichstrom-Wechselstrom-Ladeanschlusses;
• 4 die Ladeanschlussvorrichtung nach 1 bis 3 mit freigegebenem weiterem Ladeanschluss.

show:

• 1 a charging connection device for an electrically powered vehicle with two charging terminals according to a first embodiment of the invention with fully covered charging terminals;
• 2 the charging connection device 1 with released AC contact elements of the combined DC-AC charging port;
• 3 the charging connection device 1 and 2 with released AC contact elements and DC contact elements of the combined DC-AC charging port;
• 4 the charging connection device 1 until 3 with released additional charging connection.

In the figures, the same or similar components are denoted by the same reference symbols. The figures only show examples and are not to be understood as limiting.

the 1 until 4 show a charging connection device 100 for an electrically driven vehicle with two charging connections 12, 22.

How from the 1 until 4 As can be seen, the illustrated exemplary embodiment of the charging connection devices 100 for an electrically driven vehicle comprises two charging connections 12, 22 arranged next to one another.

How from the 1 until 4 As can further be seen, the charging connections 12, 22 correspond to charging sockets, but other suitable charging connections 12, 22 are also conceivable. How from the 2 and 3 As can also be seen, a charging connection 12 arranged on the left is designed as a combined direct current/alternating current charging connection 12 in the corresponding exemplary embodiment of the charging connection device 100 . The charging connection 22 arranged on the right can be embodied as a direct current charging connection 22 or as an alternating current charging connection 22 or as a further combined direct current/alternating current charging connection 22 . The charging connections 12, 22 are each assigned to at least one charging mode.

How out 3 As can further be seen, the combined direct current/alternating current charging connection 12 has two types of contact elements 14 , 16 . The AC contact elements 16 are arranged above the DC contact elements 14 .

Of course, the designation left and right is an example. The combined direct current/alternating current charging connection 12 shown can, of course, also be arranged on the right. Furthermore, the two charging connections 12, 22 can also be arranged one below the other. In addition, both charging connections can each have only one type of contact element 14, 16, 24.

How out 1 As can further be seen, the charging terminals 12, 22 are electrically coupled via a common electrical path 30. FIG. The two charging connections 12, 22 arranged next to one another in the common electrical path 30 are connected in parallel. Each charging termination 12, 22 has an electrical coupling 31, 32 in each case. In this case, no separating elements for separating the charging connections 12, 22 are required. Both charging terminals 12, 22 are live.

How from the 1 until 4 It can further be seen that the charging connection device 100 comprises a cover arrangement 50 which comprises at least one movably mounted cover element 51, 52. A first cover element 51 is designed as a perforated mask 40 with at least one recess 44, 45, 46. In at least one releasing position, shadow mask 40 at least partially releases contact elements 14, 16 of first charging connection 12 and covers contact elements 24 of second charging connection 22 ( 2 and 3 ). In at least one further releasing position, shadow mask 40 covers contact elements 14, 16 of first charging connection 12 and releases contact elements 24 of second charging connection 22 at least partially. As a result, only contact elements 14, 16, 24 assigned to a current charging mode are accessible for contacting during a charging process, while other contact elements 14, 16, 24 are covered by the perforated mask 40, in particular covered in a safe-to-touch manner.

The shadow mask can be designed as a perforated sheet made of spring steel or spring sheet metal. Other materials in which recesses 44, 45, 46 are introduced, for example stamped, are also conceivable. The shadow mask is in particular designed to be flexible. In addition, the recesses 44, 45, 46 of the shadow mask 40 can Have the form of a mating face, which is formed by corresponding contact elements 14, 16, 24.

From the cover 51 are in the 2 until 4 with the recesses 44, 45, 46 for the sake of clarity, only the outlines are shown. In reality, as mentioned, the cover element 51 is designed, for example, as a perforated sheet metal made of spring steel or spring sheet metal and is therefore not transparent. Only the recesses 44, 45, 46 of the shadow mask 40 form openings in the cover element 51 designed as a strip.

How from the 2 until 4 is further evident, the shadow mask 40 is arranged circumferentially in the illustrated embodiment. The shadow mask 40 is thereby deflected over two rollers 54 . In an alternative exemplary embodiment, which is not illustrated, the shadow mask 40 can also be wound up and/or unwound on rollers 54 at the end regions.

How from the 2 until 4 It can also be seen that the perforated mask 40 has a plurality of sections 41, 42, 43, each of which can be moved via plug faces, in particular parallel to the plug faces of the charging connections 12,22. In the illustrated embodiment, the sections 41, 42, 43 of the shadow mask 40 are moved horizontally over the mating faces. In an alternative exemplary embodiment, which is not shown, the sections 41, 42, 43 of the shadow mask 40 can also be moved vertically over the connector faces.

How from the 2 until 4 It can also be seen that each section 41, 42, 43 is associated with a loading mode and a position of the shadow mask 40 associated with the loading mode. The sections 41, 42, 43 each have a hole pattern with at least one recess 44, 45, 46, which releases the charging mode associated contact elements 14, 16, 24 in the corresponding releasing position.

How out 2 It can also be seen that the recess 44 of the hole pattern of a first section 41 releases the AC contact elements 16 of the combined DC/AC charging connection 12 in a first releasing position of the shadow mask 40 .

How out 3 It can also be seen that the recess 45 of the hole pattern of a second section 42 releases the AC contact elements 16 and the DC contact elements 14 of the combined DC-AC charging connection 12 in a second releasing position of the shadow mask 40 .

How out 4 It can also be seen that the recess 46 of the hole pattern of a third section 43 releases the contact elements 24 of the further charging connection 22 in a third releasing position of the shadow mask 40 .

In a fourth position, not shown, the hole pattern of a fourth section can have no recess 44, 45, 46. As a result, the fourth section can cover the charging connections 12, 22 in a fourth position of the shadow mask 40.

In the illustrated exemplary embodiment of the shadow mask 40, the shadow mask 40 has three recesses 44, 45, 46, which are each adapted to a connector face. In an alternative embodiment, a recess 44, 45, 46 can also be adapted to several plug faces and, depending on the position of shadow mask 40, release one of the plug faces to which the recess is adapted. For example, the perforated mask 40 can only have the recesses 44, 45, which can be shifted such that the AC contact elements 16 are released through the recess 44 in the first position, and the AC contact elements 16 and the DC contact elements are released in the second position 14 is released through the recess 45 and in the third position the contact elements 24 of the second charging connection 22 are released through one of the recesses 44, 45.

How from the 1 until 4 As can further be seen, the covering arrangement 50 comprises a second movably mounted covering element 52 which, in a covering position, covers both charging connections 12, 22 and the first covering element 51 and, in a releasing position, at least partially releases the first covering element 51. In the illustrated embodiment, the charging connections 12, 22 are arranged in a common charging trough 10 and the second cover element 52 is designed as a charging trough cover. In the exemplary embodiment shown, the second cover element 52 is pushed outwards in front of an outer shell shell in order to be transferred into one of the release positions. Sliding in other spatial directions is also possible in order to move the cover element 52 into the releasing position. In an alternative exemplary embodiment, which is not shown, the second cover element 52 can also be designed as a foldable or rollable or bendable roller blind. Furthermore, the cover element 52 can be mounted in a rotationally movable manner. The cover element 52 can be folded away or pivoted away from the loading trough 10 on a suitable axis up or down or to the side or diagonally outwards in order to release it into one of the to be transferred to the positions. For example, the cover element 52 can be arranged like a conventional tank flap on the side of the charging recess 10, which can correspond to the tank recess arranged in an internal combustion vehicle. Alternatively, the cover element 52 can be rotated in a plane parallel to the loading tray 10 . A combination of swiveling and rotating or swiveling and moving or rotating and moving is also conceivable.

A possible implementation of the charging connection device 100 (not shown) can be controlled via sensors and actuators. In addition or as an alternative, however, passive implementation using simple mechanical functions is also possible.

For example, the cover elements 51, 52 can be moved between the positions by a drive. A sensor arrangement can recognize a current charging mode and output corresponding signals to the drive, so that the cover elements 51, 52 are automatically transferred to the positions associated with the charging mode and release corresponding contact elements 14, 16.

Reference List

10

loading trough

12

charging port

14

DC contact elements

16

AC contact elements

22

charging port

24

contact elements

30

electrical path

31

electrical coupling

32

electrical coupling

40

shadow mask

41

first section

42

second part

43

third section

44

recess

45

recess

46

recess

50

cover assembly

51

first (inner) cover element

52

second (outer) covering element

54

role

100

charge connector device

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited 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 102021000307 A1 [0002]

Claims (10)

Charging connection device (100) for an electrically powered vehicle - Two charging connections (12, 22) arranged next to one another, in particular charging sockets, which are electrically coupled via a common electrical path (30) and which each have contact elements (14, 16, 24) which are each assigned to at least one charging mode; - and a covering arrangement (50) which comprises at least one movably mounted covering element (51, 52), a first covering element (51) being designed as a shadow mask (40) with at least one recess (44, 45, 46), the shadow mask (40) in at least one releasing position, at least partially releases contact elements (14, 16) of the first charging connection (12) and covers contact elements (24) of the second charging connection (22); and in at least one further releasing position, it covers contact elements (14, 16) of the first charging connection (12) and at least partially releases contact elements (24) of the second charging connection (22), so that during a charging process only contact elements (14, 16, 24) assigned to a current charging mode are accessible for making contact, while other contact elements (14, 16, 24) are covered by the perforated mask (40), in particular covered so that they cannot be touched. charging connection device claim 1 , wherein the perforated mask (40) is arranged circumferentially and/or can be rolled up and/or unrolled at opposite end regions on rollers (54). charging connection device claim 1 or 2 , wherein the perforated mask (40) has a plurality of sections (41, 42, 43) which are movable in each case via plug faces, in particular parallel to plug faces of the charging connections (12,22). charging connection device claim 3 , each section (41, 42, 43) being associated with a loading mode and a position of the shadow mask (40) associated with the loading mode, with the sections (41, 42, 43) each having a hole pattern with at least one recess (44, 45, 46 ) which releases the contact elements (14, 16, 24) assigned to the charging mode in the corresponding releasing position. Charging connection device according to one of the preceding claims, wherein at least one of the two charging connections (12, 22) is designed as a combined DC/AC charging connection (12) with two types of contact elements (14, 16). charging connection device claim 4 or 5 , wherein the recess (44) of the hole pattern of a first section (41) releases the AC contact elements (16) of the combined DC-AC charging connection (12) in a first releasing position of the shadow mask (40). Charging connection device according to one of Claims 4 until 6 , wherein the recess (45) of the hole pattern of a second section (42) the AC contact elements (16) and the DC contact elements (14) of the combined DC-AC charging connection (12) in a second releasing position of the shadow mask (40) releases. Charging connection device according to one of Claims 4 until 7 , wherein the recess (46) of the hole pattern of a third section (43) releases the contact elements (24) of the further charging connection (22) in a third releasing position of the shadow mask (40). Charging connection device according to one of Claims 4 until 8th , wherein the hole pattern of a fourth section has no recess (44, 45, 46) and the fourth section covers the charging connections (12, 22) in a fourth position of the shadow mask (40). Charging connection device according to one of the preceding claims, wherein the cover arrangement (50) comprises a second, movably mounted cover element (52) which in a covering position covers both charging connections (12, 22) and the first cover element (51) and in a releasing position the first cover element (51) at least partially releases.

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