Charging port module of a charging station for charging an electric vehicle

Abstract

A charging connection module (12) of a charging station (1) for charging an electric vehicle (4) comprises at least one busbar (15A, 15B) to which an electrical supply line (100A, 100B) for connecting the charging connection module (12) to a power electronics (10) of the charging station (1) and at least one charging line (220A, 220B) of a charging cable (2) for transmitting a charging current between the charging station and the electric vehicle (4) can be connected. A hose guidance device (14) has a plurality of segments (141-143) which are movably connected to each other in an initial state and are jointly designed to guide at least one cooling line (210A, 211A, 210B, 211B), wherein the segments (141-143) are arranged relative to each other in a mounting position of the charging connection module such that the at least one cooling line (210A, 211A, 210B, 211B) is guided along a curved guide track on the hose guidance device (14).

Description

[0001] The invention relates to a charging port module of a charging station for charging an electric vehicle according to the preamble of claim 1.

[0002] Such a charging connection module includes at least one busbar to which an electrical supply line for connecting the charging connection module to a power electronics of the charging station and at least one charging line of a charging cable for transmitting a charging current between the charging station and the electric vehicle can be connected.

[0003] The charging port module is a component of a charging station designed for charging an electric vehicle. The charging station, which is typically permanently installed at a charging point, can be connected to an electric vehicle, for example, via a charging cable and a charging plug. The charging plug is inserted into a charging socket on the electric vehicle, thus establishing an electrical connection between the charging station and the vehicle.

[0004] Charging currents can be transmitted as direct current or alternating current, whereby charging currents in the form of direct current in particular have a high current intensity, for example greater than 500 A or even greater than 700 A, in commercial vehicles possibly even on the order of 3000 A, and can lead to heating of the cable as well as of a connector part connected to the cable.

[0005] In general, heating of a cable, especially a charging cable, and a connector part connected to the cable can be slowed down, at least to some extent, by oversizing current-carrying components. For example, conductors within a cable can have a comparatively large cross-section to increase their current-carrying capacity. Additionally, contact elements of a connector part can also be oversized to counteract excessive heating at the connector's contacts.

[0006] However, there are limits to the oversizing of current-carrying components in a charging cable because oversizing increases weight and also impairs flexibility, thus making the charging cable more difficult for the user to handle. For this reason, active cooling is used in the charging cable and its associated connector, the charging plug. This cooling system circulates a coolant flow along the charging cable and through the connector, absorbing and dissipating heat from both the cable and the connector.

[0007] In contrast, oversizing the power-carrying components in a charging station that is permanently installed at a fixed charging location is generally permissible. When using a charging station, numerous charging processes are typically carried out consecutively, so the power-carrying components within the charging station must be dimensioned for near-continuous operation.

[0008] However, care must be taken to ensure that uncooled lengths of charging cables with a small cross-section are kept as short as possible at a transition between current-carrying components within the charging station and the charging cable, where active cooling is provided, so that excessive heating does not occur, especially in the area of ​​a transition between the current-carrying components within the charging station and the charging cable, which could otherwise endanger the operational safety of the charging station.

[0009] Charging stations, also known as charging columns, are an essential component of the charging infrastructure in the field of electromobility. The design of charging stations typically depends on the manufacturer, and in particular, the arrangement of the charging cable at the charging station can vary depending on the specific design.

[0010] Generally, a charging cable should be positioned at a charging station in such a way that the cable and its attached charging plug can be easily handled by the user. For example, it should be avoided that the charging cable, despite its potentially considerable length, comes into contact with the ground when not in use, in order to prevent dirt and damage. Therefore, charging stations may, for instance, have a connection point for the charging cable located as high as possible on the station, taking care to minimize bending stress on the cable when not in use and to utilize the available space within the charging station efficiently.

[0011] As a result, there is a need to provide efficient cooling for the charging cable and also in the area of ​​a transition between the charging cable and the charging station, even in small available installation spaces.

[0012] A charging cable known from DE 10 2010 007 975 B4 has a cooling line that includes a supply and a return line for a coolant, thus enabling a flow of coolant back and forth within the charging cable. The cooling line of DE 10 2010 007 975 B4 serves both to dissipate waste heat generated by a vehicle's energy storage system and to cool the cable itself.

[0013] DE 20 2019 005 522 U1 describes a cable gland for a fluid-guided cable.

[0014] The object of the present invention is to provide a charging connection module for a charging station and a charging station that enables a charging cable to be connected to the charging station in a space-efficient manner, a cooling line to be laid in a space-saving and functionally favorable manner at the transition between the charging station and the charging cable, and easy assembly.

[0015] This problem is solved by an object having the features of claim 1.

[0016] Accordingly, the charging port module has a hose guidance device which has a plurality of segments which are movably connected to each other in an initial state and are jointly designed to guide at least one cooling line, wherein the segments are arranged relative to each other in a mounting position of the charging port module such that the at least one cooling line is guided along a curved guide track on the hose guidance device.

[0017] The charging port module is part of the charging station and is installed, for example, inside the charging station in a station housing.

[0018] The charging connection module is used to connect the charging cable to the charging station and, in an operational installation position, connects one or more electrical supply lines on the side of the charging station with one or more charging lines on the side of the charging cable.

[0019] The charging connection module comprises one or more busbars, to which, in the installed position (i.e., when the charging connection module is mounted on the charging station as required for operation), an electrical supply line can be connected. This line connects the charging connection module to the charging station's power electronics. During operation, the charging station's power electronics generate a charging current, which is transmitted to the electric vehicle via a charging cable connected to the charging station. In the installed position, at least one charging line is also connected to the busbar. This line runs within the charging cable connected to the charging station and serves to transmit the charging current between the charging station and the electric vehicle.Each charging cable can, in particular, provide a conductor that is routed within a cable sheath of the charging cable and is connected to an associated load contact of a connector part at the end of the charging cable that implements a charging plug. A charging current is thus transmitted via the charging cable during operation.

[0020] If a charging current in the form of a direct current is generated via the charging station, the charging cable may contain, for example, two charging lines or two pairs of charging lines that are assigned to the two different potentials of the direct current.

[0021] The charging station can also generate a charging current in the form of alternating current. In this case, the charging cable may contain more than two charging lines (or pairs of charging lines) that together transmit a charging current, for example, a three-phase charging current.

[0022] In its installed position, the charging connection module provides a transition between the supply line connected to the power electronics and the charging line within the charging cable. While the supply line may be oversized, for example with a conductor cross-section of 300 mm², the charging connection module serves as a bridge between the power supply line and the charging line. 2 or even exceeding this, the charging cable has a reduced cross-section to provide a manageable weight and flexibility. To ensure cooling of current-carrying components, particularly the busbar, at the transition point, and to minimize uncooled free lengths of the charging cable, the charging connection module incorporates a hose guide system with one or more cooling lines.

[0023] During operation of the charging station, cooling is provided to the charging cable and preferably also to at least one busbar of the charging connection module via one or more cooling lines. This ensures cooling at the junction between the supply line and the at least one charging line, thus reducing the uncooled length of the charging line at the point of connection to the busbar. This prevents excessive heating at the point where the charging cable connects to the charging station during operation.

[0024] The charging connection module has one or more busbars. Each busbar can be connected to a supply line in the mounting position and thus be at the potential of the supply line, whereby, for example, two busbars are present when transmitting direct current.

[0025] The charging port module has a hose guide designed to guide at least one cooling line along the module. The hose guide comprises multiple interconnected segments which, in the charging port module's standard operating position, together provide a curved guide path and thus a deflection for the cooling line.The hose guide device allows for a deflection of, for example, 180° at the charging connection module, so that a cooling line, which extends from the charging cable at the hose guide device into the interior of the charging station, can be deflected at the charging connection module and thus routed within the charging station in a space-saving manner or, if necessary, connected to another cooling line for connection to a cooling unit of the charging station.

[0026] The segments of the hose guide system are movable relative to each other in their initial state. Before assembly is complete, the segments are not fixed in position relative to each other, but rather movable, allowing them to be aligned. During assembly, the segments can be moved into a position corresponding to the mounting position of the charging port module, in which they together form the curved guide track for guiding at least one cooling line.

[0027] Because the segments are movable relative to each other during assembly, a simplified assembly process is particularly advantageous. For example, the assembly may require that at least one cooling line be routed through an opening in the charging station. This can be achieved by attaching the at least one cooling line to the hose guide and routing it, along with the hose guide, through the opening of the charging station. Since the segments are movable relative to each other in their initial state, inserting the hose guide, with the at least one cooling line attached to it, into an opening of the charging station is simplified.

[0028] In particular, the segments in the initial state can, for example, be brought into a straightened position relative to each other compared to the curved guide path. In the straightened position, the hose guide device with the at least one cooling line attached to it can, for example, be inserted into an opening on the charging station. After insertion into the opening of the charging station, the hose guide device can then be brought into a position corresponding to the assembly position, such that the at least one cooling line is guided along the curved guide path defined by the segments of the hose guide device.

[0029] The curved guide path of the hose guide only forms during assembly. Before assembly is complete, the segments of the hose guide are movable relative to each other. This allows the segments to be positioned in a straightened position relative to each other for assembly, enabling easy insertion of the hose guide into a designated, possibly small, for example, round opening on the charging station.

[0030] In one embodiment, the hose guide is connected to the charging cable in a pre-assembly position. In this pre-assembly position, at least one cooling line is already routed along the hose guide. In this pre-assembly position, i.e., the position connected to the charging cable, the hose guide can be mounted on the charging station, for example, by positioning the segments, which are movable relative to each other in the initial state, so that the hose guide can be easily inserted into a corresponding opening on the charging station.

[0031] In one embodiment, at least one cooling line is formed by a coolant hose, in particular a plastic hose. The cooling line thus extends in a hose-like shape and is flexibly deformable. Due to the curved guide path defined by the hose guide, the at least one cooling line is guided and deflected by the hose guide, which provides guidance for the cooling line in such a way that kinking and thus an excessive reduction of the flow cross-section of the cooling line is reliably prevented.

[0032] In one embodiment, at least one cooling line extends along the charging cable. The cooling line is thus routed within the charging cable and extends out of the cable to the hose guide.

[0033] In one embodiment, at least one cooling line is routed within at least one charging line. In this case, the charging line is designed as a hollow conductor. For example, one conductor of the charging line is formed by a tubular cable braid, such as a copper braid, with an associated cooling line being contained and routed within the conductor, so that the conductor extends around the cooling line and heat from the charging line can thus be absorbed by the associated cooling line inside the charging line.

[0034] In one embodiment, at least one cooling line can be connected to a cooling unit of the charging station. During operation, this cooling line provides a coolant flow between the cooling unit and the charging cable. For example, the cooling line can transition directly into the charging cable, thus extending within both the charging station and the charging cable. In another embodiment, a flow line can be connected, for example, at the charging connection module to a cooling line extending within the charging cable, allowing coolant to flow between the cooling line of the charging station and the cooling line of the charging cable.

[0035] If the cooling line extends along the charging cable, into the charging station, and within the charging station to the cooling unit, an (additional) connection of the charging cable's cooling line to another flow line within the charging station is not necessary. This can reduce the risk of leakage in or at the charging station.

[0036] In one embodiment, the segments are pivotally connected to each other in the initial state. In this embodiment, the segments can only pivot relative to each other. In other embodiments, the segments can be both pivotable and, for example, slid relative to each other.

[0037] In one embodiment, the segments are connected to each other in pairs via a hinge connection or a flexible connecting element. A hinge connection or a pivotable connection is created between each pair of segments via a flexibly deformable element.

[0038] A joint connection can be created, for example, by supporting one segment on a joint pin of the other segment.

[0039] A flexible connecting element can, for example, be formed by a film hinge between the paired segments.

[0040] In a particularly simple and cost-effective design, a flexible connecting element is created by a mounting strip, for example an adhesive tape, which connects the segments in pairs and allows the segments to move relative to each other in the initial state.

[0041] In one embodiment, at least one of the segments is attached to the at least one busbar in the mounting position. For example, one or more of the segments can be screwed to the at least one busbar when the charging connection module is in the mounting position and thus in an operational position. If two busbars are provided, one or more of the segments can preferably be connected to both of the busbars, for example, by screwing them in.

[0042] In one embodiment, the segments are fixed in position relative to at least one busbar when installed. In the installed position, i.e., the operating position of the charging connection module, movement between the segments of the hose guide is thus eliminated. Instead, the segments are fixed in position relative to each other and define a curved guide path for the at least one cooling line.

[0043] One or more of the segments can, for example, be connected to at least one busbar. For instance, one of the segments is connected to at least one busbar, while another segment is supported by the charging cable, so that all segments of the hose guide are in a defined, fixed position relative to each other and are held in this position.

[0044] The hose guide can have three segments. However, it is also conceivable that the hose guide has only two segments or more than three, for example 4, 5, 6, 7, 8, 9, 10 or even more segments.

[0045] In one embodiment, at least one of the segments has an alignment contour that, in the assembly position, is flush with a card of the at least one busbar. Assembly preferably takes place in the initial state of the hose guide device, in which the segments are movable relative to each other. To align the segments during assembly and bring them into a position corresponding to the assembly position, an alignment contour is formed on at least one of the segments, which can be aligned relative to an associated edge of the at least one busbar during assembly. In the assembly position, the alignment contour is flush with the edge of the at least one busbar. This can facilitate assembly, in particular the alignment of the segments relative to the at least one busbar during assembly.

[0046] In one embodiment, each segment has at least one receiving groove for receiving at least one cooling line. If several cooling lines are guided on the hose guide, several receiving grooves are formed on each segment. The receiving grooves of the segments connect to one another in the position corresponding to the mounting position, so that the segments form a curved guide track for each cooling line, along which the respective cooling line is received and thus guided.

[0047] Each receiving groove preferably has dimensions such that the associated cooling line fits precisely within it. The cooling line, preferably tubular, is supported in the receiving groove in such a way as to provide guidance for the cooling line and prevent kinking of the cooling line, thus preventing excessive reduction of the flow cross-section.

[0048] In one embodiment, the at least one receiving groove for guiding the at least one cooling line along the curved guide track is arc-shaped. The receiving groove of each segment is thus arc-shaped, with the receiving grooves of the segments associated with a cooling line connecting to one another in the position of the hose guide device corresponding to the assembly position, and together defining an arc-shaped guide track for the cooling line.

[0049] In particular, the receiving grooves provide support transversely to the guide track (viewed along an axis of curvature of the guide track). When bent, a tubular cooling line tends to deflect, especially transversely along the bending axis. The support in the receiving groove prevents dimensional changes, particularly transversely along the axis of curvature of the guide track, thus preventing kinking and the associated excessive reduction of the flow cross-section in the cooling line.

[0050] In one embodiment, at least one receiving groove is open on the side facing at least one busbar. At least one cooling line is received in this receiving groove and, in the installed position, is in contact with the busbar. Heat from the associated busbar can thus be absorbed via the cooling line, thereby providing cooling to the busbar during operation.

[0051] In one embodiment, at least two cooling lines are routed along the hose guide to provide a coolant supply and a coolant return, and are connected to the at least one busbar. Preferably, each busbar is assigned two cooling lines routed along the hose guide, which provide a coolant supply and a coolant return to the respective busbar. The cooling lines are assigned to the charging line connected to the respective busbar, for example, a pair of charging lines (at the same potential), and convey coolant along the assigned charging line or pair of charging lines.

[0052] In one embodiment, the electrical supply cable, in the mounting position where the electrical supply cable and the at least one charging cable are connected to the at least one busbar, extends along a first outgoing direction from the at least one busbar. The at least one charging cable extends along a second outgoing direction from the at least one busbar, oriented in the same direction as the first outgoing direction. The outgoing directions along which the electrical supply cable and the at least one charging cable extend from the busbar are thus identical. At the charging connection module, a deflection of (approximately) 180° is provided via the busbar, so that the supply cable and the charging cable extend away from the busbar in the same direction.In this way, a space-saving, installation-efficient arrangement of the charging connection module at the charging station can be enabled, utilizing, for example, installation space available in an upper area of ​​the charging station.

[0053] In one embodiment, the charging connection module has a pair of busbars, to which, in the installed position, an electrical supply line and at least one charging line of the charging cable are connected. The charging connection module thus comprises two busbars. Such an embodiment of the charging connection module can, for example, serve to transmit a charging current in the form of direct current, with the busbars being assigned to the two different supply lines and located at the different potentials of the direct current, corresponding to the potentials of the two supply lines.

[0054] In one embodiment, the hose guide is arranged between the busbars in the mounting position. The hose guide thus occupies an intermediate position between the busbars, with at least one cooling line assigned to each busbar guided on the side of the hose guide facing the busbars.

[0055] In one embodiment, the busbars extend along parallel planes. For example, the busbars can extend across a surface along their respective planes by being designed as solid, planar metal elements, preferably with a comparatively large conductor cross-section. The busbars are aligned parallel to each other.

[0056] Because the charging connection module provides active cooling (directly) via an arrangement of cooling lines in a system with one or more busbars, the charging connection module can be designed to be space-efficient, reducing the number of components required.

[0057] A charging station comprises power electronics for generating a charging current, a cooling unit for generating a coolant flow, and a charging connection module of the type described above.

[0058] In its normal operating position, one or more supply lines are connected to at least one busbar of the charging connection module. Additionally, one or more charging cables are connected to at least one busbar of the charging connection module. Cooling lines connect the cooling unit to the charging connection module. Charging cables routed within a charging cable are associated with cooling lines that run within the charging cable and provide cooling along its length.

[0059] A charging system comprises a charging station and a charging cable connected to the charging station via the charging port module.

[0060] The underlying concept of the invention will be explained in more detail below with reference to the exemplary embodiments shown in the figures. The figures show: Fig. 1. A view of a charging system comprising a charging station and a charging cable with a charging plug connected to it; Fig. 2 a view of an exemplary embodiment of a charging station; Fig. 3 a partial section view of the charging station; Fig. 4 a partially enlarged view of the arrangement according to Fig. 3; Fig. 5 a view of a charging port module of the charging station; Fig. 6 another view of the charging port module; Fig. 7 a view of the charging port module at the charging station; Fig. 8 A side view of a hose guide device on a charging cable, before installation on the charging station; Fig. 9 a front view of the arrangement according to Fig. 8; Fig. 10 a perspective view of the arrangement according to Fig. 8; Fig. 11 a top view of the arrangement according to Fig. 8; Fig. 12 a separate view of the hose guide in an assembly position; Fig. 13 a view of the hose guide in an extended position; Fig. 14 a view of the order according to Fig. 8 to 11 when connecting to a charging station; Fig. 15 the order according to Fig. 8 to 11 at the charging station; Fig. 16 the order according to Fig. 15, together with busbars arranged on a base element; Fig. 17 the order according to Fig. 16, with the hose guide in the assembly position; Fig. 18 the order according to Fig. 17, with supply lines connected to the busbars; and Fig. 19 a view of the fully assembled charging port module.

[0061] Fig. Figure 1 shows a view of a charging system consisting of a permanently installed charging station 1, a charging cable 2, and a connector 3 in the form of a charging plug connected to the charging cable 2. The connector 3, in the form of the charging plug, is connected to a charging socket on the side of the electric vehicle 4 to charge it. This establishes an electrical connection between the charging station 1 and the electric vehicle 4 via the charging cable 2 and the charging plug 3 attached to it, allowing charging currents to flow from the charging station 1 to the electric vehicle 4 to charge its batteries.

[0062] The in Fig. Charging station 1, shown separately (with an open front door), has, as shown in the partial section view according to Fig. 3 schematically drawn, a power electronics unit 10 for generating a charging current, a cooling unit 11 and a component shown in the sectional views according to Fig. 3 and Fig. 4. The charging connection module 12 is visible. During operation, the power electronics 10 generates a charging current and directs it to the charging connection module 12. The charging cable 2 is connected to the charging connection module 12, so that the charging current can be directed to the electric vehicle 4 via the charging cable 2.

[0063] During a fast charging process, high charging currents, for example greater than 500 A, possibly even greater than 700 A, and in the case of commercial vehicles even equal to or greater than 3000 A, can be transmitted. Because such currents cause heating of current-carrying components in the charging station 1, the charging cable 2, and also the connector part 3, care must be taken to ensure that such heating does not compromise the operational safety of the charging station 1, the charging cable 2, and the connector part 3.

[0064] While current-carrying components within the charging station 1, in particular supply lines 100A, 100B, via which the power electronics 10 is connected to the charging connection module 12, have a large conductor cross-section, for example on the order of 300 mm² 2 or above, dimensioned and thus excessive heating can be counteracted by dimensioning the components, there are limits to the dimensioning of charging lines in the charging cable 2 and of current-carrying components of the connector part 3, because increasing the conductor cross-section also increases the weight and also impairs the flexibility and thus the handling, especially of the charging cable 2.

[0065] Active cooling is provided to the charging cable 2 and preferably also to the connector part 3 via the cooling device 11. This is achieved by introducing a coolant flow into the charging cable 2 via the charging port module 12, directing it through the charging cable 2 to the connector part 3, and then returning it to the charging port module 12 via the charging cable 2. This coolant flow absorbs and dissipates heat from the charging cable 2 and components of the connector part 3, thus preventing excessive heating of the charging cable 2 and the connector part 3.

[0066] Fig. Figures 5 to 19 show views of an embodiment of the charging connection module 12, which in the illustrated embodiment has a base element 13, a hose guide device 14 and two busbars 15A, 15B arranged at receiving locations 131A, 131B of the base element 13.

[0067] The in Fig. 5 and Fig. The separately illustrated charging connection module 12 is arranged in a mounting position corresponding to an operational position on a station housing 16 of the charging station 1 and is attached to a mounting section 160 of the station housing 16, as shown in Figure 6. Fig. 7 can be seen. The charging cable 2 is secured to the fastening section 160 via a strain relief 20, so that mechanical forces acting on the charging cable 2, in particular tensile forces, can be introduced into the fastening section 160 and discharged via the station housing 16.

[0068] The busbars 15A and 15B are arranged inside the housing of the charging connection module 12, which is formed by the base element 13 and the housing part 12. As shown in the figure, each of the busbars 15A and 15B is connected to a power supply. Fig. As can be seen in Figure 18, in the assembly position, a 100A, 100B supply line is electrically connected, via which the respective 15A, 15B busbar is electrically connected to the power electronics 10 of the charging station 1. The 100A, 100B supply lines are at different potentials, in particular different polarities (positive and negative), so that a two-pole charging current can be fed into the 220A, 220B charging lines of the charging cable 2 via the 15A, 15B busbars and conducted from the charging station 1 to the electric vehicle 4 via the charging cable 2 and the connector 3.

[0069] The supply lines 100A, 100B are connected to the busbars 15A, 15B at connection points 150A, 150B in the mounting position by screwing a cable lug on the respective supply line 100A, 100B to the busbar 15A, 15B via the assigned connection point 150A, 150B, as shown in Fig. 18 is evident.

[0070] Each 15A, 15B busbar, which extends as a planar plate element along an associated extension plane, is also connected to a pair of 220A, 220B charging lines of charging cable 2, as shown, for example, in Fig. 16 to 18 is evident.

[0071] Each charging cable 220A, 220B has an electrical conductor enclosed in a cable sheath, which is connected via a cable lug to an associated terminal 151A, 151B of the associated busbar 15A, 15B, in particular screwed to the terminal 151A, 151B, as shown from Fig. As can be seen in figures 16 to 18. A charging current carried via a respective supply line 100A, 100B is thus carried for each polarity via a pair of charging lines 220A, 220B, which are together enclosed in the charging cable 2.

[0072] The electrical conductors of the charging lines 220A, 220B, for example, are designed as hollow conductors and each contains a tubular cooling line 210A, 211A; 210B, 211B concentrically inside, so that during operation coolant flows inside the charging lines 220A, 220B and thus heat can be absorbed and dissipated directly within the charging lines 220A, 220B.

[0073] The electrical conductors of the charging lines 220A, 220B can, for example, be implemented by a tubular copper braid in which the charging current is conducted and within which the respective associated cooling line 210A, 211A; 210B, 211B extends.

[0074] The cooling line 210A, 211A; 210B, 211B of each charging line 220A, 220B is guided and deflected at the charging connection module 12 via the hose guide 14 and, in the illustrated embodiment, extends continuously within the charging station 1 to the cooling unit 11 in order to circulate the coolant within the charging station 1. Each pair of charging lines 220A, 220B is assigned two cooling lines 210A, 211A (for the pair of charging lines 220A) or 210B, 211B (for the pair of charging lines 220B). For each pair of charging lines 220A, 220B, a coolant flow is supplied in the coolant supply line via one of the assigned cooling lines 210A, 211A; 210B, 211B. The coolant flow is directed back to the cooling unit 11 via the other cooling line 210A, 211A; 210B, 211B in the coolant return line.

[0075] For each pair of charging lines 220A, 220B, a closed coolant circuit results, whereby in one charging line 220A, 220B of the respective pair of charging lines 220A, 220B the coolant flow is in the coolant supply line and in the other charging line 220A, 220B in the coolant return line.

[0076] The hose guide device 14 has a plurality of segments 141-143, in the illustrated embodiment three segments 141-143 which are movable relative to each other in an initial state, before completion of assembly, as shown from

[0077] Fig. 8 to 11 in conjunction with the separate views of the hose guide device 14 according to Fig. 12 and Fig. 13 is evident.

[0078] Fig. Figure 13 shows the hose guidance device 14 in the initial state with segments 141-143 movable relative to each other. Fig. Figure 12, on the other hand, shows the hose guide device 14 in a position corresponding to the assembly position of the hose guide device 14.

[0079] In the illustrated embodiment, the segments 141-143 are connected to each other via a flexible connecting element 140 in the form of a mounting band, for example adhesive tape, spanning the segments 141-143. The segments 141-143 are thus pivotable relative to each other in pairs when the hose guide 14 is in its initial position according to the diagram. Fig. 13 is located.

[0080] On each of the segments 141-143, two receiving grooves 144 are formed on opposite sides, each of which is curved in an arc. On the opposite sides, in the position corresponding to the assembly position, according to Fig. 12 thus two radially spaced, curved guideways are created, which are formed by the adjoining arc-shaped receiving grooves 144 of the segments 141-143.

[0081] A bottom of the receiving grooves 144 is formed by a partition 145, which separates the receiving grooves 144 on the opposite sides of the segments 141-143 along a central plane of the hose guiding device 14.

[0082] One of the segments 143 is to be connected to the charging cable 2, as shown from Fig. 8 to 11. In contrast, another segment 141, located away from segment 143, has screw points 147 on both sides for screwing to the busbars 15A, 15B.

[0083] Because the cooling lines 210A, 211A; 210B, 211B are received and guided on the segments 141-143 of the hose guide device 14 and the cooling lines 210A, 211A; 210B, 211B are also held in conjunction with the respective associated busbar 15A, 15B, heat can be absorbed directly at the busbars 15A, 15B via the cooling lines 210A, 211A; 210B, 211B, so that heat can be efficiently transported away from the busbars 15A, 15B.

[0084] Because cooling is provided in the area of ​​the charging connection module 12, and thus at the transition between the supply lines 100A, 100B and the charging lines 220A, 220B, the uncooled length of the electrical conductors outside the cooled charging lines 220A, 220B is short. While the supply lines 100A, 100B within the charging station 1 can be dimensioned with a large conductor cross-section, the charging lines 220A, 220B are actively cooled directly from the charging connection module 12 by the associated cooling lines 210A, 211A; 210B, 211B, so that excessive heating of the charging lines 220A, 220B is counteracted along their entire length.

[0085] As this is shown Fig. As can be seen in Figure 14, the base element 13 has an opening 130 which is aligned with an opening 161 on the mounting section 160 of the station housing 16.

[0086] To mount the charging cable 2 to the charging station 1, the charging cable 2 is connected with its end assigned to the charging station 1, as can be seen from Fig. 8 to 11, attached to the mounting section 160 of the station housing 16, and the base element 13 is connected to the strain relief 20 with the mounting section 160 interposed, for example by snapping or screwing. For connection, the pairs of charging lines 220A, 220B guided in the charging cable 2, together with the cooling lines 210A, 211A; 210B, 211B guided on the hose guide 14, are guided through the openings 161, 130 in the mounting section 160 and the base element 13 and thus inserted into the interior of the charging station 16, as is done in the transition from Fig. 14 towards Fig. 15 is evident.

[0087] In the Fig. In the pre-assembly position shown in Figures 8 to 11, the hose guide 14 is connected to one end of the charging cable 2, which carries the strain relief 20 and is associated with the charging station 2. The cooling lines 210A, 211A; 210B, 211B are received in the receiving grooves 144 of the segments 141-143 on both sides of the hose guide 14. To position the charging cable 2 at the charging station 1, the hose guide 14 with the segments 141-143 can be brought into a position in which the hose guide 14 is extended, as shown in Figures 8 to 11. Fig. 14. In this extended position, the hose guide 14 with the cooling lines 210A, 211A; 210B, 211B arranged thereon can be inserted into the opening 161 on the mounting section 160 of the station housing 16 in order to connect the charging cable 2 to the charging station 1, as shown in the transition from Fig. 14 towards Fig. 15 is evident.

[0088] Once the hose guide 14 with the cooling lines 210A, 211A; 210B, 211B arranged thereon has been inserted into the charging station 1, the busbars 15A, 15B are arranged at the mounting positions 131A, 131B of the base element 13, as shown in the figure. Fig. 16 is evident, and the two pairs of charging lines 220A, 220B are connected to the connection points 151A, 151B of the busbars 15A, 15B.

[0089] The segments 141-143 of the hose guide device 14 are then aligned to each other so that they assume their position relative to each other as assigned to the assembly position and form the intended curved guide paths for the cooling lines 210A, 211A; 210B, 211B, as shown in the figure. Fig. 17. The alignment is carried out in such a way that an alignment contour 146 formed on the segment 141 is aligned flush with the associated edges of the busbars 15A, 15B.

[0090] In this position, segment 141 is fastened to the busbars 15A, 15B on both sides at screw points 147 by screws 153 attached to screw points 152 of the busbars 15A, 15B, so that segments 141-143 are fixed in their position relative to each other and relative to the busbars 15A, 15B.

[0091] The supply lines 100A, 100B are connected to the assigned connection points 150A, 150B of the busbars 15A, 15B. Fig. Figure 18 shows the charging port module 12 (without the housing part 120) in the mounting position.

[0092] By arranging the housing part 120 on the base element 13, the housing of the charging port module 12 is completed, as shown in the figure. Fig. 19 is evident.

[0093] While in Fig. Figures 8 to 17 show that the cooling lines 210A, 211A; 210B, 211B are abbreviated for the sake of clarity. Fig. 19 the cooling lines 210A, 211A; 210B, 211B in their intended extended configuration for connection to the cooling unit 11.

[0094] As this is in Fig. As shown in Figure 5, the supply lines 100A, 100B and the charging lines 220A, 220B extend along the same cable exit directions A1, A2 from the charging connection module 12. At the charging connection module 12, in particular at the busbars 15A, 15B, a deflection of (approximately) 180° is thus provided between the supply lines 100A, 100B on the side of the charging station 1 and the charging lines 220A, 220B on the side of the charging cable 2, which enables a space-efficient design of the charging connection module 12 with advantageous use of the installation space available, in particular in an upper area of ​​the charging station 1.

[0095] The coolant flow can consist primarily of a mixture of water and antifreeze. However, an oil-based coolant can also be used.

[0096] The underlying idea of ​​the invention is not limited to the embodiments described above, but can also be implemented in other ways.

[0097] A charging station can provide charging current in the form of direct current (DC). In other configurations, charging current can be provided in the form of alternating current (AC). Reference symbol list 1 charging station 10 Power Electronics 100A, 100B Electrical supply line 11 Cooling unit 12 Charging port module 120 Housing part 13 Basic element 130 Opening 131A, 131B Recording station 14 Hose guide device 140 connecting element 141-143 Segment 144 recordings 145 partition wall 146 Alignment contour 147 screw points 15A, 15B busbar 150A, 150B connection point 151A, 151B Junction 152 Screw opening 153 Screw element 16 station housings 160 fastening section 161 Opening 2 charging cables 20 Strain relief 210A, 210B Cooling line 211A, 211B Cooling line 220A, 220B charging cable 3 charging plugs 4 Electric vehicle A1, A2 Exit direction QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2010 007 975 B4

[0012] DE 20 2019 005 522 U1

[0013]

Claims

[1] Charging connection module (12) of a charging station (1) for charging an electric vehicle (4), with at least one busbar (15A, 15B) to which an electrical supply line (100A, 100B) for connecting the charging connection module (12) with a power electronics (10) of the charging station (1) and at least one charging line (220A, 220B) of a charging cable (2) for transmitting a charging current between the charging station and the electric vehicle (4) can be connected, characterized bya hose guidance device (14) comprising a plurality of segments (141-143) which are movably connected to one another in an initial state and are jointly designed to guide at least one cooling line (210A, 211A, 210B, 211B), wherein the segments (141-143) are arranged relative to each other in a mounting position of the charging connection module such that the at least one cooling line (210A, 211A, 210B, 211B) is guided along a curved guide track on the hose guidance device (14). [2] Charging port module (12) according to claim 1, characterized by , that the segments (141-143) in the initial state can be brought into a stretched position relative to each other compared to the curved guide path. [3] Charging port module (12) according to claim 1 or 2, characterized by, that the hose guide device (14) is connected to the charging cable (2) in a pre-assembly position and that at least one cooling line (210A, 211A, 210B, 211B) is guided on the hose guide device (14). [4] Charging port module (12) according to one of claims 1 to 3, characterized by , that at least one cooling line (210A, 211A, 210B, 211B) is formed by a coolant hose. [5] Charging port module (12) according to any one of the preceding claims, characterized by , that at least one cooling line (210A, 211A, 210B, 211B) extends in the charging cable (2) to at least one charging line (220A, 220B). [6] Charging port module (12) according to claim 5, characterized by , that at least one cooling line (210A, 211A, 210B, 211B) is routed within at least one charging line (220A, 220B). [7] Charging port module (12) according to any one of the preceding claims, characterized by, that at least one cooling line (210A, 211A, 210B, 211B) can be connected to a cooling unit (11) of the charging station (1). [8] Charging port module (12) according to any one of the preceding claims, characterized by , that the segments (141-143) are pivotably connected to each other in the initial state. [9] Charging port module (12) according to claim 8, characterized by , that the segments (141-143) are connected to each other in pairs via a hinge connection or a flexible connecting element (140). [10] Charging port module (12) according to any one of the preceding claims, characterized by , that at least one of the segments (141-143) is attached to the at least one busbar (15B, 15B) in the mounting position. [11] Charging port module (12) according to any one of the preceding claims, characterized by , that the segments (141-143) are fixed in position relative to at least one busbar (15A, 15B) in the assembly position. [12] Charging port module (12) according to one of the preceding claims, characterized by , that at least one of the segments (141-143) has an alignment contour (146) which, in the mounting position, is aligned flush with an edge of the at least one busbar (15A, 15B). [13] Charging port module (12) according to any one of the preceding claims, characterized by , that each segment (141-143) has at least one receiving groove (144) for receiving the at least one cooling line (210A, 211A, 210B, 211B). [14] Charging port module (12) according to claim 12, characterized by , that the at least one receiving groove (144) for guiding the at least one cooling line (210A, 211A, 210B, 211B) along the curved guide path is curved in an arc shape. [15] Charging port module (12) according to claim 13 or 14, characterized by, that the at least one receiving groove (144) is open on one side facing the at least one busbar (15A, 15B), wherein the at least one cooling line (210A, 211A, 210B, 211B) is received in the at least one receiving groove (144) and is in the mounting position in conjunction with the at least one busbar (15A, 15B). [16] Charging port module (12) according to any one of the preceding claims, characterized by , that at least two cooling lines (210A, 211A, 210B, 211B) are routed to the hose guide device (14) to provide a coolant supply and a coolant return. [17] Charging port module (12) according to any one of the preceding claims, characterized by, that in the assembly position the electrical supply line (100A, 100B) and the at least one charging line (220A, 220B) are connected to the at least one busbar (15A, 15B), wherein in the assembly position the electrical supply line (100A, 100B) extends along a first outgoing direction (A1) from the at least one busbar (15A, 15B) and the at least one charging line (220A, 220B) extends along a second outgoing direction (A2) from the at least one busbar (15A, 15B) which is in the same direction as the first outgoing direction (A1). [18] Charging port module (12) according to any one of the preceding claims, characterized by , that the charging connection module (12) has a pair of busbars (15A, 15B) to which, in the mounting position, an electrical supply line (100A, 100B) and at least one charging line (220A, 220B) of the charging cable (2) are connected. [19] Charging port module (12) according to claim 18, characterized by, that the hose guide device (14) is arranged in the mounting position between the busbars (15A, 15B). [20] Charging station (1) comprising power electronics (10) for generating a charging current, a cooling device (11) for generating a coolant flow and a charging connection module (12) according to one of the preceding claims. [21] Charging system comprising a charging station (1) according to claim 20 and a charging cable (2) connected to the charging station via the charging connection module m(12).

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