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. The charging module (1) has at least one terminal part (140A, 140B) to which at least one coolant line (110A, 111A, 110B, 111B) is led and which is connected to the at least one busbar (15A, 15B) in such a way that the at least one coolant line (110A, 111A, 110B, 111B) is in system with the at least one busbar (15A, 15B).

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 comprises at least one busbar to which an electrical supply line for connecting the charging connection module to the 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. A coolant line serves to conduct a coolant for cooling the at least one charging line.

[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 coolant 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 coolant line in 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 the connection of a charging cable to the charging station in a space-efficient manner while avoiding excessive heating in a transition area between the charging lines of the charging cable and current-carrying components of the charging station.

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

[0016] Accordingly, the charging connection module has at least one terminal part to which at least one coolant line is routed and which is connected to at least one busbar in such a way that at least one coolant line is in system with at least one busbar.

[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 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 an electrical supply line is connected, linking 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. 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 line can, in particular, provide a conductor that is routed within the cable sheath of the charging cable and is connected to a corresponding load contact of a connector at the end of the charging cable, which implements a charging plug. Thus, a charging current is transmitted via the charging line 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] 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 can 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. 2or even exceeding this, the charging cable has a reduced cross-section to provide a manageable charging cable with manageable weight and flexibility. To provide cooling for current-carrying components, especially on the busbar, in the transition area, and to minimize uncooled free lengths of the charging cable as much as possible, the charging connection module has a terminal block to which one or more coolant lines are routed and which is connected to the busbar in such a way that the one or more coolant lines are in contact with at least one busbar.

[0023] Cooling is provided at the busbar via one or more coolant lines, thus ensuring cooling at the charging connection module at the transition between the supply line and at least one charging line. This reduces the uncooled length of the charging line at the point of connection to the busbar, preventing excessive heating at the charging cable connection point during operation.

[0024] The charging connection module has one or more busbars. A busbar can be connected to a supply line and thus be at the supply line's potential; for example, two busbars are present when transmitting direct current. Each busbar is associated with a terminal block to which one or more coolant lines are routed.

[0025] In one embodiment, at least one coolant line is clamped to at least one busbar via at least one clamping element. In its intended installed position, the clamping element can be connected to the associated busbar in such a way that a clamping force is exerted on the at least one coolant line, thus pressing the coolant line into contact with the busbar. This can improve heat transfer between the busbar and the at least one coolant line, thereby improving heat absorption by the busbar.

[0026] For example, at least one clamping element can be screwed to at least one busbar. A clamping force can be exerted on at least one coolant line via a screw connection that secures the clamping element to the associated busbar, so that the at least one coolant line is pressed against the busbar via the clamping element.

[0027] In one embodiment, at least one clamping element is made of a (highly) thermally conductive material. Heat can thus be efficiently conducted via the clamping element. For example, the clamping element can be made of a metal material, such as aluminum, for instance, an aluminum die-casting. At least one coolant line is routed to the clamping element, whereby, during operation, heat at the busbar can be absorbed directly via the coolant line located in contact with the busbar, and also via the clamping element, and then transferred into the coolant line via the clamping element.

[0028] In one embodiment, at least one coolant line is formed by a coolant hose, in particular a plastic hose. The coolant line thus extends in a hose-like shape and is flexibly deformable. Due to the clamping effect of the clamping element, the coolant line can, for example, be pressed against the associated busbar and thereby deformed in such a way that a flat contact exists between the at least one coolant line and the busbar with a contact force determined by the clamping element.

[0029] In one embodiment, at least one coolant line is connected to a cooling unit of the charging station. During operation, this at least one coolant line provides a coolant flow between the cooling unit and the charging cable. This at least one coolant line can, for example, transition directly into the charging cable and thus extend within both the charging station and the charging cable. In another embodiment, a coolant line can be connected, for example, at the charging connection module to a charging cable coolant line extending within the charging cable, allowing coolant to flow between the at least one coolant line of the charging station and the charging cable coolant line.

[0030] In one embodiment, at least one terminal section has two coolant lines for providing a coolant supply and a coolant return, connected to at least one busbar. Thus, two coolant lines are routed to each terminal section, providing a coolant supply and a coolant return. These coolant 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 to the assigned charging line or pair of charging lines.

[0031] To guide at least one coolant line, the clamping element can, for example, have a guide groove in which the coolant line rests. The coolant line is in contact with the clamping element, allowing heat to be transferred from the clamping element to the coolant line running along it.

[0032] A guide groove in which a coolant line is received can, for example, extend longitudinally along an arc-shaped curved extension path on the clamping part in order to provide directed guidance of the coolant line on the clamping part.

[0033] In one embodiment, at least one coolant line is in flow connection with at least one charging cable coolant line extending along at least one charging cable. The coolant line is thus connected to an associated charging cable coolant line routed within the charging cable, allowing coolant to flow between the coolant line and the associated charging cable coolant line. The coolant line here establishes the connection between the charging cable coolant line and the cooling unit within the charging station.

[0034] In one embodiment, at least one charging cable coolant line is routed within at least one charging cable. In this case, the charging cable is designed as a hollow conductor. For example, one conductor of the charging cable is formed by a tubular cable braid, such as a copper braid, with an associated charging cable coolant line being contained and guided within the conductor, so that the conductor extends around the charging cable coolant line and thus heat from the charging cable can be absorbed by the associated charging cable coolant line inside the charging cable.

[0035] In one embodiment, the electrical supply line, in a mounted position where the electrical supply line and the at least one charging line 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 line extends along a second outgoing direction from the at least one busbar, which is oriented in the same direction as the first outgoing direction. The outgoing directions along which the electrical supply line and the at least one charging line extend from the busbar are thus identical. At the charging connection module, a 180° deflection is provided via the busbar, so that the supply line and the charging line 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.

[0036] In one embodiment, the charging connection module has a pair of busbars, each with an electrical supply line and at least one charging line of the charging cable connected to it. 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.

[0037] In one embodiment, each busbar is assigned a terminal block to which at least one coolant line is routed and which is connected to the assigned busbar in such a way that the at least one coolant line is in contact with the respective busbar. Thus, a terminal block is (permanently) connected to each busbar. One or more coolant lines are routed to each terminal block and are held in contact with the assigned busbar by the respective terminal block. The arrangement of coolant lines allows heat to be absorbed at the respective busbar, thereby providing active cooling at that busbar.

[0038] In one embodiment, the charging connection module includes a spacer made of an electrically insulating material, to which the terminals associated with the busbars are attached. The spacer can, for example, be positioned between the busbars. The spacer thus forms an intermediate layer between the busbars, with the terminals, which may be made of a metal material, for example, being electrically separated from each other by the spacer, thereby providing electrical insulation between the busbars.

[0039] 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. For instance, the arrangement of the busbars with the clamping elements attached to them can be mirror-symmetrical, resulting in simplified routing and organization of the cables at the charging connection module.

[0040] Because the charging connection module provides active cooling (directly) via an arrangement of coolant 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.

[0041] 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.

[0042] 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. Coolant lines connect the cooling unit to the charging connection module. Charging cables routed within a charging cable are associated with charging cable coolant lines, which run within the charging cable and provide cooling along its length.

[0043] 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 an exploded view of the arrangement according to Fig. 7; Fig. 9 A view of one end of a charging cable before connection to the charging port module; Fig. 10 the end of the charging cable, together with a housing section of the charging station and a base element of the charging port module; Fig. 11 the order according to Fig. 10, after attaching the charging cable to the charging station; Fig. 12 the order according to Fig. 11, together with clamping parts to which coolant lines are routed; Fig. 13 the order according to Fig. 12, together with busbars arranged on the base element; Fig. 14 the order according to Fig. 13, with supply lines and coolant lines connected to the busbars; Fig. 15 a different view of the order according to Fig. 14; Fig. 16A a partial sectional view of the arrangement according to Fig. 13; Fig. 16B an enlarged view in section A according to Fig. 16A; Fig. 17A the particle view according to Fig. 16A, with terminal blocks screwed to the busbars; and Fig. 17B an enlarged view in section A according to Fig. 17A.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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 2or 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.

[0048] 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.

[0049] Fig. Figures 5 to 17A, 17B show views of an embodiment of the charging connection module 12, which in the illustrated embodiment has a base element 13, a spacer 14 and two busbars 15A, 15B arranged at mounting locations 131A, 131B of the base element 13.

[0050] Each of the 15A, 15B busbars is electrically connected to a 100A, 100B supply line, 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.

[0051] The supply lines 100A, 100B are connected to the busbars 15A, 15B at connection points 150A, 150B 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. 14 and Fig. 15 is evident.

[0052] Each busbar 15A, 15B, which extends as a planar plate element along an associated extension plane E1, E2 (see the sectional views according to Fig. 16A, Fig. 16B and Fig. 17A, Fig. 17B), a pair of charging lines 220A, 220B of charging cable 2 is also connected, as is shown for example in Fig. 14 and Fig. 15 is evident.

[0053] 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. 14 and Fig. As can be seen in Figure 15. 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.

[0054] The electrical conductors of the charging lines 220A, 220B, for example, are designed as hollow conductors and each accommodates a tubular charging cable coolant line 210A, 211A; 210B, 211B concentrically inside them, 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.

[0055] 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 charging cable coolant line 210A, 211A; 210B, 211B extends.

[0056] The charging cable coolant line 210A, 211A; 210B, 211B of each charging line 220A, 220B is connected to the charging connection module 12 with an associated coolant line 110A, 111A; 110B, 111B for conveying the coolant within the charging station 1. Each pair of charging lines 220A, 220B is assigned two coolant lines 110A, 111A (for the pair of charging lines 220A) or 110B, 111B (for the pair of charging lines 220B). For each pair of charging lines 220A, 220B, coolant flow is supplied in the coolant supply line via one of the associated coolant lines 110A, 111A; 110B, 111B. The other coolant line 110A, 111A; In the coolant return line 110B, 111B the coolant flow is directed back to the cooling unit 11.

[0057] For each pair of charging lines 220A, 220B, a closed coolant circuit is thus created, whereby in one charging line 220A, 220B of the respective pair of charging lines 220A, 220B the coolant flows in the coolant supply and in the other charging line 220A, 220B in the coolant return and is fed in via the coolant lines 110A, 111A; 110B, 111B in the coolant supply and returned in the coolant return.

[0058] In the illustrated embodiment, each busbar 15A, 15B is associated with a terminal block 140A, 140B, on which the coolant lines 110A, 111A; 110B, 111B associated with the respective busbar 15A, 15B are guided. For this purpose, guide grooves 142A, 142B are formed on the terminal blocks 140A, 140B, which extend in an arc shape along the respective terminal block 140A, 140B and each accommodate a coolant line 110A, 111A; 110B, 111B, as shown in the figure. Fig. 8 in conjunction with Fig. 12 and the sectional views according to Fig. 16A, Fig. 16B and Fig. 17A, Fig. 17B is evident.

[0059] The terminal blocks 140A and 140B are arranged together on a spacer 14 located between the busbars 15A and 15B. The terminal blocks 140A and 140B are made of a material with good thermal conductivity, such as a metal or die-cast aluminum. The spacer 14, on the other hand, is made of an electrically insulating material, such as a plastic, so that the terminal blocks 140A and 140B, located on the busbars 15A and 15B, are electrically isolated from each other by the spacer 14, and the busbars 15A and 15B are thus electrically separated from each other by the spacer 14.

[0060] Each terminal block 140A, 140B is permanently connected to its respective busbar 15A, 15B. The coolant lines 110A, 111A; 110B, 111B, which are routed along the respective terminal block 140A, 140B, are clamped to their respective busbar 15A, 15B, so that the coolant lines 110A, 111A; 110B, 111B are crimped in contact with their respective busbar 15A, 15B.

[0061] Fig. 16A, Fig. Figure 16B shows the coolant lines 110A, 111A; 110B, 111B at the terminal blocks 140A, 140B before making a screw connection of the respective terminal block 140A, 140B with the associated busbar 15A, 15B ( Fig. 16A, Fig. 16B) and after the screw connection has been made ( Fig. 17A, Fig. 17B). In its intended installed position, each terminal block 140A, 140B is screwed to its associated busbar 15A, 15B via screw elements 153A, 153B. The screw elements 153A, 153B are inserted through screw openings 152A, 152B on the respective busbar 15A, 15B and screwed to the corresponding terminal block 140A, 140B with threaded nuts 141A, 141B, so that each terminal block 140A, 140B is tightened against its associated busbar 15A, 15B from the inside (on the side facing the other busbar 15A, 15B).

[0062] As can be seen from the enlarged view according to Fig. As can be seen in Figure 17B, in the intended installed position, the coolant lines 110A, 111A; 110B, 111B are clamped to the associated busbar 15A, 15B via the respective associated clamping part 140A, 140B, by pressing the coolant lines 110A, 111A; 110B, 111B in contact with the busbar 15A, 15B, deforming the coolant lines 110A, 111A; 110B, 111B, which are formed by flexible hoses, due to the contact pressure.

[0063] Because the coolant lines 110A, 111A; 110B, 111B are connected to and guided by their respective terminals 140A, 140B, and because the coolant lines 110A, 111A; 110B, 111B are also pressed into place with the associated busbar 15A, 15B, heat can be absorbed directly at the busbars 15A, 15B via the coolant lines 110A, 111A; 110B, 111B, and also via the terminals 140A, 140B and transferred into the coolant lines 110A, 110A; 110B, 111B, thus enabling efficient heat dissipation from the busbars 15A, 15B. Because the coolant lines 110A, 111A; Since the coolant lines 110A, 111B are absorbed in the guide grooves 142A, 142B, heat can be introduced into the coolant lines 110A, 110A; 110B, 111B essentially across the entire hose jacket surface.

[0064] The terminal parts 140A, 140B can be made of a thermally conductive material, in particular a metal material, for example an aluminum die-casting material, for the purpose of heat conduction between the busbars 15A, 15B and the coolant lines 110A, 110A; 110B, 111B.

[0065] As this is shown Fig. 13 to 15 in conjunction with the sectional views according to Fig. 16A, Fig. 16B and Fig. 17A, Fig. As can be seen in Figure 17B, the busbars 15A and 15B each extend along an associated extension plane E1 and E2, respectively. The busbars 15A and 15B are aligned parallel to each other, with parallel extension planes E1 and E2.

[0066] In the illustrated embodiment, the busbars 15A, 15B with the terminal blocks 140A, 140B are arranged symmetrically to each other. This simplifies the organization and routing of the cables at the charging connection module 12, but can also be implemented differently in other configurations, in particular not symmetrically.

[0067] 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 charging cable coolant lines 210A, 211A; 210B, 211B, so that excessive heating of the charging lines 220A, 220B is counteracted along essentially their entire length.

[0068] The in Fig. 5 and Fig. The separately shown charging connection module 12 is arranged on a station housing 16 of the charging station 1 and 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.

[0069] As can be seen from the exploded view of the charging port module 12 according to Fig. As can be seen in Figure 8, the base element 13 has an opening 130 which aligns with an opening 161 on the mounting section 160 of the station housing 16. When the charging connection module 12 is mounted, a housing part 120 is arranged on the base element 13, so that the base element 13 and the housing part 120 together form a housing for the charging connection module 12, as shown in Figure 8. Fig. 5 to 7 are visible.

[0070] 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. 9, attached to the mounting section 160 of the station housing 16, and the base element 13 is screwed together with the strain relief 20 to the mounting section 160, as shown in Fig. 10 and Fig. As can be seen in Figure 11. The pairs of charging lines 220A, 220B, which are guided in the charging cable 2 and separated by a separating element 23, are guided together with the associated charging cable coolant lines 210A, 211A; 210B, 211B through the openings 161, 130 on the mounting section 160 and the base element 13 and thus introduced into the interior of the charging station 16, as can be seen from Figure 11. Fig. 11 is evident.

[0071] Then, coolant lines 110A, 111A; 110B, 111B are connected to the charging cable coolant lines 210A, 211A; 210B, 211B, as shown in Fig. 12 can be seen, and the busbars 15A, 15B are arranged at the mounting locations 131A, 13B of the base element 13 and screwed to the clamping parts 140A, 140B arranged on the spacer 14, as shown in Fig. 13 and Fig. As shown in Figure 14, the two pairs of charging lines 220A and 220B are connected to terminals 151A and 151B of the busbars 15A and 15B. Additionally, the supply lines 100A and 100B are connected to their respective terminals 150A and 150B of the busbars 15A and 15B. Fig. 14 and Fig. Figure 15 shows the charging port module 12 (without the housing part 120) in the mounted position.

[0072] As this is in Fig.As shown in Figure 14, 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 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.

[0073] The coolant flow can consist of a mixture of water and antifreeze. However, an oil-based coolant can also be used.

[0074] The underlying idea of ​​the invention is not limited to the embodiments described above, but can also be realized in other ways.

[0075] 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 110A, 110B Coolant line 111A, 111B Coolant line 12 Charging port module 120 Housing part 121 Housing part 13 Basic element 130 Opening 131A, 131B Recording station 14 spacer 140A, 140B terminal block 141A, 1140B Threaded nut 142A, 142B Guide groove 15A, 15B busbar 150A, 150B connection point 151A, 151B Junction 152A, 152B Screw opening 153A, 153B Screw element 16 station housings 160 fastening section 161 Opening 2 charging cables 20 Strain relief 210A, 210B Charging cable coolant line 211A, 211B Charging cable coolant line 220A, 220B charging cable 23 Separating element 3 charging plugs 4 Electric vehicle A1, A2 Exit direction E1, E2 Extension level 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, and at least one coolant line (110A, 111A, 110B, 111B) for conveying a coolant for cooling the at least one charging line (220A, 220B), characterized by at least one terminal (140A, 140B) to which at least one coolant line (110A, 111A, 110B, 111B) is guided and which is connected to at least one busbar (15A, 15B) in such a way that at least one coolant line (110A, 111A, 110B, 111B) is in line with at least one busbar (15A, 15B). [2] Charging port module (12) according to claim 1, characterized by , that at least one coolant line (110A, 111A, 110B, 111B) is clamped to at least one busbar (15A, 15B) via at least one terminal block (140A, 140B). [3] Charging port module (12) according to claim 1 or 2, characterized by , that at least one terminal block (140A, 140B) is screwed to at least one busbar (15A, 15B). [4] Charging port module (12) according to one of claims 1 to 3, characterized by , that at least one terminal part (140A, 140B) is made of a thermally conductive material. [5] Charging port module (12) according to any one of the preceding claims, characterized by , that at least one coolant line (110A, 111A, 110B, 111B) is formed by a coolant hose. [6] Charging port module (12) according to any one of the preceding claims, characterized by, that at least one coolant line (110A, 111A, 110B, 111B) is connected to a cooling unit (11) of the charging station (1). [7] Charging port module (12) according to any one of the preceding claims, characterized by , that at least one terminal block (140A, 140B) has two coolant lines (110A, 111A, 110B, 111B) for providing a coolant supply and a coolant return, and is connected to at least one busbar (15A, 15B). [8] Charging port module (12) according to any one of the preceding claims, characterized by , that at least one coolant line (110A, 111A, 110B, 111B) is in flow connection with at least one charging cable coolant line (210A, 211A, 210B, 211B) extending along the at least one charging line (220A, 220B). [9] Charging port module (12) according to claim 8, characterized by, that at least one charging cable coolant line (210A, 211A, 210B, 211B) is routed within at least one charging line (220A, 220B). [10] Charging port module (12) according to any one of the preceding claims, characterized by , that in a mounted position in which 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), 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) that is in the same direction as the first outgoing direction (A1). [11] 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 each an electrical supply line (100A, 100B) and at least one charging line (220A, 220B) of the charging cable (2) are connected. [12] Charging port module (12) according to claim 11, characterized by , that each busbar (15A, 15B) is assigned a terminal block (140A, 140B) to which at least one coolant line (110A, 111A, 110B, 111B) is led and which is connected to the assigned busbar (15A, 15B) in such a way that the at least one coolant line (110A, 111A, 110B, 111B) is in line with the respective busbar (15A, 15B). [13] Charging port module (12) according to claim 12, characterized by a spacer (14) made of an electrically insulating material and on which the terminal parts (140A, 140B) associated with the busbars (15A, 15B) are arranged. [14] Charging port module (12) according to claim 13, characterized by, that the spacer (14) is arranged between the busbars (15A, 15B). [15] Charging port module (12) according to one of claims 11 to 14, characterized by , that the busbars (15A, 15B) extend along parallel planes (E1, E2). [16] 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.

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