Charging device, charging system, and vehicle

Abstract

Embodiments of the present application provide a charging device, a charging system, and a vehicle. The charging device comprises a housing and a conductive structure. The conductive structure is configured to implement connection and disconnection of at least two electrical connection points. The housing is provided with a heat dissipation structure, and the heat dissipation structure exchanges heat with the conductive structure.

Description

A charging device, a charging system, and a vehicle

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510378109.7, filed on March 26, 2025, entitled “A charging device, charging system and vehicle”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of vehicle technology, specifically relating to a charging device, a charging system, and a vehicle. Background Technology

[0004] The charging device is a core component of new energy vehicles. Reliable charging of the vehicle can be achieved by electrically connecting the charging gun of an external energy storage device to the charging device. The charging device typically includes a housing and multiple functional components housed within the housing, with adjacent functional components electrically connected via conductive copper busbars.

[0005] However, the charging device generates significant heat during operation, limiting the charging power and thus affecting the vehicle's charging efficiency. Summary of the Invention

[0006] This application aims to provide a charging device, a charging system, and a vehicle to solve the problem that the charging device generates excessive heat during operation, thereby limiting the charging power and affecting the charging efficiency of the vehicle.

[0007] To solve the above-mentioned technical problems, this application is implemented as follows:

[0008] In a first aspect, this application discloses a charging device, comprising: a housing and a conductive structure;

[0009] A conductive structure is used to achieve the switching on and off of at least two electrical connection points;

[0010] The casing is equipped with a heat dissipation structure, which exchanges heat with the conductive structure.

[0011] In some embodiments, the conductive structure is connected to the housing.

[0012] In some embodiments, the housing includes a base plate, and conductive and heat dissipation structures are disposed on opposite sides of the base plate.

[0013] In some embodiments, at least a portion of the conductive structure abuts against the base plate.

[0014] In some embodiments, the conductive structure includes a contactor connected to a base plate.

[0015] In some embodiments, the conductive structure further includes: a conductive connector, which abuts against the base plate and is electrically connected to the contactor.

[0016] In some embodiments, the contactor is disposed on the side of the conductive connector away from the base plate.

[0017] In some embodiments, the heat dissipation structure includes a heat dissipation chamber for containing a heat dissipation medium;

[0018] In some embodiments, a groove is provided on the side of the base plate away from the conductive structure, and the groove is used for the flow of heat dissipation medium.

[0019] In some embodiments, the housing further includes a cover plate that covers the opening of the groove and encloses the groove to form a heat dissipation chamber.

[0020] In some embodiments, the heat dissipation structure further includes a flow guide disposed within a groove to form a heat dissipation channel within the heat dissipation chamber.

[0021] In some embodiments, the heat dissipation structure includes an inlet channel and an outlet channel, both of which are disposed on the base plate.

[0022] In some embodiments, the heat dissipation channel includes an inlet end and an outlet end, with the liquid inlet channel connected to the inlet end and the liquid outlet channel connected to the outlet end.

[0023] In some embodiments, the charging device further includes a heat-conducting structure disposed between the conductive structure and the housing, the heat-conducting structure being used to conduct the heat generated by the conductive structure to the housing.

[0024] In some embodiments, the thermally conductive structure at least partially covers the heat dissipation structure.

[0025] In some embodiments, the thermally conductive structure includes a thermally conductive plate, which is thermally connected to at least a portion of the conductive structure and the housing.

[0026] In some embodiments, the thermally conductive structure further includes a thermally conductive layer disposed between the thermally conductive plate and the conductive structure;

[0027] And / or, a thermally conductive layer is disposed between the thermally conductive plate and the housing.

[0028] In some embodiments, the thermal conductive layer is a silicone grease thermal conductive layer.

[0029] In some embodiments, the conductive structure further includes a connector, which is connected to the housing and electrically connected to the conductive structure.

[0030] At least a portion of the connector corresponds to the location of the heat dissipation structure.

[0031] In some embodiments, the conductive structure further includes: a charging port base, which is connected to the housing and electrically connected to the conductive structure;

[0032] At least a portion of the charging port base corresponds to the position of the heat dissipation structure.

[0033] In some embodiments, the charging device further includes a temperature sensor for acquiring temperature information of at least the conductive structure.

[0034] In some embodiments, the charging device further includes a controller electrically connected to a temperature sensor, the controller being configured to at least acquire and change the current flowing through the conductive structure based on temperature information.

[0035] Secondly, this application also discloses a charging system, including the aforementioned charging device.

[0036] In some embodiments, the charging device includes a first charging device, which includes a first charging port base and a second charging port base with different power.

[0037] And / or, the charging device includes a second charging device, the second charging device including a third charging port base, the third charging port base having the same power as one of the first charging port base and the second charging port base.

[0038] In some embodiments, the charging system further includes a high-voltage distribution box, which is electrically connected to the first charging port base, the second charging port base, and the third charging port base respectively to achieve charging.

[0039] In some embodiments, the first charging device further includes a first electrical switch, which is disposed between the high-voltage distribution box and the first charging port base. The first electrical switch is used to connect or disconnect the high-voltage distribution box and the first charging port base.

[0040] In some embodiments, the first charging device further includes a second electrical switch, which is disposed between the high-voltage distribution box and the second charging port base. The second electrical switch is used to connect or disconnect the high-voltage distribution box and the second charging port base.

[0041] In some embodiments, the second charging device further includes a fourth electrical switch, which is disposed between the high-voltage distribution box and the third charging port base. The fourth electrical switch is used to connect or disconnect the high-voltage distribution box and the third charging port base.

[0042] In some embodiments, the first charging device further includes a third electrical switch, which is disposed between the first charging port base and the second charging port base, and is used to connect or disconnect the first charging port base and the second charging port base.

[0043] Thirdly, this application also discloses a charging system, including at least one first charging device with a charging power in the megawatt range.

[0044] In some embodiments, the first charging device is the charging device described above.

[0045] In some embodiments, the first charging device includes a first charging port base and a second charging port base with different power, wherein the charging power of one of the first charging port base and the second charging port base is in the megawatt range.

[0046] In some embodiments, the charging system further includes a high-voltage distribution box, which is electrically connected to the first charging port base and the second charging port base respectively to realize charging.

[0047] In some embodiments, the first charging device further includes a first electrical switch, which is disposed between the high-voltage distribution box and the first charging port base. The first electrical switch is used to connect or disconnect the high-voltage distribution box and the first charging port base.

[0048] In some embodiments, the first charging device further includes a second electrical switch, which is disposed between the high-voltage distribution box and the second charging port base. The second electrical switch is used to connect or disconnect the high-voltage distribution box and the second charging port base.

[0049] In some embodiments, the first charging device further includes a third electrical switch, which is disposed between the first charging port base and the second charging port base, and is used to connect or disconnect the first charging port base and the second charging port base.

[0050] Fourthly, this application also discloses a vehicle that includes the aforementioned charging device or any of the aforementioned charging systems.

[0051] In this embodiment, due to the heat dissipation structure, the temperature of the conductive structure can be effectively reduced through heat exchange between the heat dissipation structure and the conductive structure, thereby achieving reliable heat dissipation of the conductive structure. This allows the charging device to maintain a high charging power and improves the charging efficiency of the vehicle.

[0052] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0053] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0054] Figure 1 is a schematic diagram of a charging device provided in an embodiment of this application;

[0055] Figure 2 is a schematic diagram of the heat dissipation structure of a charging device provided in an embodiment of this application;

[0056] Figure 3 is a schematic diagram of the structure of a first charging device of a charging system provided in an embodiment of this application;

[0057] Figure 4 is a schematic diagram of the structure of a second charging device of a charging system provided in an embodiment of this application;

[0058] Figure 5 is a schematic diagram of the working principle of a charging system provided in an embodiment of this application.

[0059] Reference numerals: 1. Housing, 11. Heat dissipation structure, 111. Heat dissipation chamber, 1111. Heat dissipation channel, 112. Flow guide, 113. Liquid inlet channel, 114. Liquid outlet channel, 12. Base plate, 121. Groove, 13. Sealing plate, 2. Conductive structure, 21. Conductive connector, 211. First conductive connector, 212. Second conductive connector, 22. Contactor, 23. Connector, 24. Charging port base, 3. Heat-conducting plate, 4. Controller.

[0060] 100. First charging device; 101. First charging port base; 102. Second charging port base; 103. First electrical switch; 104. Second electrical switch; 105. Third electrical switch; 106. First power distribution connector; 107. Shunt connector.

[0061] 200. Second charging device; 201. Third charging port base; 202. Second power distribution connector; 203. Fourth electrical switch.

[0062] 300. High-voltage distribution box,

[0063] 400. First on-board charger,

[0064] 500. Second on-board charger. Detailed Implementation

[0065] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0066] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0067] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In related technologies, charging devices include a housing and conductive structures disposed within the housing. These conductive structures include, but are not limited to, conductive copper busbars, contactors, connectors, and charging port bases. The contactors and connectors, as well as the contactors and charging port bases, are electrically connected via the conductive copper busbars. However, due to the internal resistance of the conductive copper busbars, contact resistance exists at the connection points between the conductive copper busbars and the connector terminals, and between the conductive copper busbars and the charging port terminals of the charging port base. This results in severe overheating during operation of the charging device, especially in the area where the charging port base connects to the charging gun. Simultaneously, the contactors also heat up during operation, thus limiting the charging power and affecting the vehicle's charging efficiency.

[0070] This application provides a charging device, which will be described in detail below with reference to the accompanying drawings.

[0071] Referring to Figure 1, a schematic diagram of the structure of a charging device provided in an embodiment of this application is shown. Referring to Figure 2, a schematic diagram of the structure of the heat dissipation structure of a charging device provided in an embodiment of this application is shown.

[0072] As shown in Figure 1, this application provides a charging device, including: a housing 1 and a conductive structure 2; the conductive structure 2 is used to realize the switching of at least two electrical connection points; the housing 1 is provided with a heat dissipation structure 11, and the heat dissipation structure 11 exchanges heat with the conductive structure 2. The conductive structure 2 includes, but is not limited to, components such as a conductive connector 21, a contactor 22, a connector 23, and a charging port base 24.

[0073] In this embodiment, the heat dissipation structure 11 is provided. Through heat exchange between the heat dissipation structure 11 and the conductive structure 2, the temperature of the conductive structure 2 can be effectively reduced, thereby achieving reliable heat dissipation of the conductive structure 2. This allows the charging device to maintain a high charging power and improves the charging efficiency of the vehicle.

[0074] It should be noted that the type of heat dissipation structure 11 is not limited in the embodiments of this application, and those skilled in the art can make adjustments according to actual needs. In one embodiment, the heat dissipation structure 11 can be a medium heat dissipation structure 11, which refers to a structure that uses a heat dissipation medium (such as gas, liquid, or phase change material) to effectively absorb, transfer, and dissipate heat, thereby achieving heat dissipation.

[0075] In some embodiments of this application, the conductive structure 2 is connected to the housing 1, thereby achieving reliable fixation of the conductive structure 2. Further, the housing 1 includes a base plate 12, with the conductive structure 2 and the heat dissipation structure 11 disposed on opposite sides of the base plate 12. That is, the base plate 12 can isolate the heat dissipation structure 11 from the conductive structure 2. In the case of using a dielectric heat dissipation structure 11, this effectively prevents the heat dissipation medium from entering the conductive structure 2 and causing a short circuit, thus improving the charging reliability of the charging device.

[0076] In some embodiments of this application, at least a portion of the conductive structure 2 abuts against the base plate 12. This allows the heat generated by the conductive structure 2 to be transferred to the base plate 12 in a timely and rapid manner, and then from the base plate 12 to the heat dissipation structure 11 in a timely and rapid manner, thereby quickly reducing the temperature of the conductive structure 2 and improving the overall heat dissipation effect of the charging device.

[0077] In some embodiments of this application, the conductive structure 2 includes a contactor 22, which is connected to the base plate 12. The contactor 22 is mainly used to control the connection and disconnection of the current. The contactor 22 will generate heat during operation. The connection between the contactor 22 and the base plate 12 can not only fix the contactor 22, but also allow the heat generated by the contactor 22 to be transferred to the base plate 12 in a timely and rapid manner to achieve heat dissipation.

[0078] In some embodiments of this application, the conductive structure 2 further includes a conductive connector 21, which abuts against the base plate 12 and is electrically connected to the contactor 22. The conductive connector 21 primarily serves to conduct electricity between the components, and includes, but is not limited to, a conductive copper busbar. During the operation of the charging device, the conductive copper busbar generates heat due to its internal resistance, and the connection points between the conductive copper busbar and other components (including, but not limited to, the contactor 22, connector 23, and charging port base 24) generate heat due to contact resistance.

[0079] In this embodiment, by abutting the conductive copper busbar against the base plate 12, the heat generated by the conductive copper busbar itself, as well as the heat generated at the connection between the conductive copper busbar and other components, can be transferred to the base plate 12 in a timely and rapid manner, thereby achieving reliable heat dissipation of the conductive structure 2 and further improving the overall heat dissipation effect of the charging device.

[0080] Furthermore, the contactor 22 is located on the side of the conductive connector 21 facing away from the base plate 12. This allows for an appropriate increase in the contact area between the conductive connector 21 (i.e., the conductive copper busbar) and the base plate 12, thereby increasing the heat dissipation area of ​​the conductive connector 21 and further improving the overall heat dissipation effect of the charging device.

[0081] In some embodiments of this application, as shown in FIG2, the heat dissipation structure 11 includes a heat dissipation chamber 111 for containing a heat dissipation medium. Thus, through heat exchange between the heat dissipation medium and the conductive structure 2, the temperature of the conductive structure 2 can be effectively reduced, which is beneficial to improving the overall heat dissipation effect of the charging device.

[0082] In some embodiments of this application, a groove 121 is provided on the side of the base plate 12 opposite to the conductive structure 2, and the groove 121 is used for the flow of heat dissipation medium. Further, the housing 1 also includes a sealing plate 13, which covers the opening of the groove 121 and surrounds the groove 121 to form a heat dissipation chamber 111.

[0083] In other words, the heat dissipation chamber 111 is directly enclosed by a portion of the base plate 12 and the sealing plate 13. This allows for more direct and efficient heat exchange between the heat dissipation medium and the conductive structure 2, reducing the temperature of the conductive structure 2 more quickly and further improving the overall heat dissipation effect of the charging device. Specifically, the housing 1 also includes side plates, and the base plate 12 and the side plates enclose a receiving cavity. The groove 121 can be formed by at least a portion of the base plate 12 recessed towards the receiving cavity, thereby making full use of the extra space within the receiving cavity, reducing the overall height of the charging device, and facilitating the miniaturization design of the charging device.

[0084] It should be noted that the connection method between the sealing plate 13 and the base plate 12 is not limited in the embodiments of this application, and those skilled in the art can make adjustments according to actual needs. In one embodiment, the sealing plate 13 and the base plate 12 located at the opening edge of the groove 121 are connected by bolts. Furthermore, in order to prevent the heat dissipation medium from leaking from the connection between the sealing plate 13 and the base plate 12, a sealing element can also be provided between the sealing plate 13 and the base plate 12.

[0085] In some embodiments of this application, the heat dissipation structure 11 further includes a flow guide 112 disposed within the groove 121 to form a heat dissipation channel 1111 within the heat dissipation chamber 111. In this way, on the one hand, the orderly flow of the heat dissipation medium within the heat dissipation channel 1111 allows the heat dissipation medium to flow evenly through the area corresponding to the conductive structure 2, improving the heat exchange efficiency between the heat dissipation structure 11 and the conductive structure 2, thereby further improving the overall heat dissipation effect of the charging device. On the other hand, the heat dissipation channel 1111 helps the heat dissipation medium to be distributed more evenly within the heat dissipation chamber 111, effectively avoiding insufficient local heat dissipation and further improving the heat dissipation performance of the heat dissipation structure 11.

[0086] It should be noted that the number of flow guides 112 is not limited in this embodiment, and those skilled in the art can adjust it according to actual needs. In specific applications, the flow guide 112 can be a flow guide plate, and multiple flow guide plates are provided. If the extension direction of the housing 1 is a first direction, the groove 121 includes two groove walls arranged opposite to each other along the first direction. The size of the flow guide plate in the first direction is smaller than the distance between the two groove walls in the first direction. Multiple flow guide plates are spaced apart in a direction perpendicular to the first direction, and one of two adjacent flow guide plates is connected to one of the groove walls, and the other is connected to the other groove wall, thereby forming a serpentine heat dissipation channel 1111. The extension direction of the housing 1 can be the length direction of the housing 1 or the width direction of the housing 1.

[0087] In some embodiments of this application, the heat dissipation structure 11 includes an inlet channel 113 and an outlet channel 114, both of which are disposed on the base plate 12. Thus, by disposing the heat dissipation chamber 111, the inlet channel 113, and the outlet channel 114 all on the base plate 12, not only can the overall sealing performance of the heat dissipation structure 11 be improved, but the structure can also be simplified and costs reduced.

[0088] Furthermore, the heat dissipation channel 1111 includes an inlet end and an outlet end, with the liquid inlet channel 113 connected to the inlet end and the liquid outlet channel 114 connected to the outlet end. It can be understood that the end of the liquid inlet channel 113 opposite to the inlet end and the end of the liquid outlet channel 114 opposite to the outlet end are used to connect with external heat dissipation equipment, thereby enabling the circulation of the heat dissipation medium.

[0089] In this embodiment, since an inlet channel 113 and an outlet channel 114 are provided, by connecting the two ends of the inlet channel 113 to the inlet end of the heat dissipation channel 1111 and the external heat dissipation device respectively, and connecting the two ends of the outlet channel 114 to the outlet end of the heat dissipation channel 1111 and the external heat dissipation device respectively, the heat dissipation medium can be circulated, thereby continuously cooling the conductive structure 2 and further improving the overall heat dissipation effect of the charging device.

[0090] It should be noted that the specific structure of the liquid inlet channel 113 and the liquid outlet channel 114 is not limited in the embodiments of this application, and those skilled in the art can make adjustments according to actual needs. In one embodiment, the liquid inlet channel 113 and the liquid outlet channel 114 can be through holes opened on the base plate 12, with one end of the through hole extending to the groove wall of the groove 121 and the other end extending to the surface of the base plate 12. In this way, the structure of the charging device can be further simplified.

[0091] In some embodiments of this application, the charging device further includes a heat-conducting structure disposed between the conductive structure 2 and the housing 1, which is used to conduct heat generated by the conductive structure 2 to the housing 1. Specifically, the heat-conducting structure is disposed between the conductive connector 21 and the base plate 12.

[0092] In this embodiment, by providing a heat-conducting structure, the heat generated by the conductive structure 2 can be rapidly and efficiently conducted to the housing 1, thereby improving the heat conduction efficiency, further reducing the temperature of the conductive structure 2, and thus improving the overall heat dissipation effect of the charging device. It should be noted that the "heat-conducting structure" in this embodiment refers to a structural component made of a material with high thermal conductivity.

[0093] In some embodiments of this application, the heat-conducting structure at least partially covers the heat dissipation structure 11. That is, the coverage area of ​​the heat-conducting structure is greater than or equal to the coverage area of ​​the heat dissipation structure 11. In this way, on the one hand, the heat-conducting structure can cover more of the conductive structure 2, so as to conduct more heat to the heat dissipation structure 11 for dissipation as much as possible; on the other hand, it makes the heat exchange area between the heat-conducting structure and the heat dissipation structure 11 as large as possible, so as to give full play to the heat dissipation function of the heat dissipation structure 11, thereby further improving the overall heat dissipation effect of the charging device.

[0094] In some embodiments of this application, the heat-conducting structure includes a heat-conducting plate 3, which is thermally connected to at least a portion of the conductive structure 2 and the housing 1. Specifically, the heat-conducting plate 3 includes a first side and a second side disposed opposite to each other; the first side abuts against at least a portion of the conductive connector 21; and the second side abuts against at least a portion of the base plate 12. In this way, through the direct contact between the heat-conducting plate 3 and the conductive connector 21 and the base plate 12, heat can be rapidly transferred from the conductive connector 21 to the base plate 12.

[0095] It should be noted that the material of the heat-conducting plate 3 is not limited in the embodiments of this application, and those skilled in the art can make adjustments according to actual needs. In one embodiment, the heat-conducting plate 3 can be a ceramic heat-conducting plate. Because ceramics have excellent thermal conductivity and insulation properties, they can not only achieve efficient heat conduction, thereby improving the heat dissipation effect of the charging device, but also prevent current conduction to avoid short circuits, thereby improving the charging reliability of the charging device. The materials of the ceramic heat-conducting plate 3 include, but are not limited to, aluminum nitride (AlN) and aluminum oxide (Al2O3).

[0096] In some embodiments of this application, the heat-conducting structure further includes a heat-conducting layer disposed between the heat-conducting plate 3 and the conductive structure 2; and / or, the heat-conducting layer is disposed between the heat-conducting plate 3 and the housing 1. Specifically, the heat-conducting layer is disposed between the first side of the heat-conducting plate 3 and the conductive connector 21, and / or, the heat-conducting layer is disposed between the second side of the heat-conducting plate 3 and the base plate 12.

[0097] Taking the setting of a heat-conducting layer between the heat-conducting plate 3 and the conductive connector 21 as an example, since the heat-conducting plate 3 and the conductive connector 21 are usually rigid structures, their adhesion is poor. Therefore, by setting a heat-conducting layer between the heat-conducting plate 3 and the conductive connector 21, the gap between them can be filled, the efficiency of heat conduction can be enhanced, and the heat dissipation effect of the charging device can be further improved. It can be understood that the setting of a heat-conducting layer between the heat-conducting plate 3 and the base plate 12 can be similar to the setting of a heat-conducting layer between the heat-conducting plate 3 and the conductive connector 21, and will not be elaborated here.

[0098] It should be noted that the thermally conductive layer refers to a layered structure with thermal conductivity. The material of the thermally conductive layer is not limited in this application embodiment, and those skilled in the art can adjust it according to actual needs. In one embodiment, the thermally conductive layer can be a silicone grease thermally conductive layer. Because silicone grease has good thermal conductivity, insulation properties, and temperature resistance, it can not only achieve efficient heat conduction, thereby improving the heat dissipation effect of the charging device, but also prevent current conduction, avoiding short circuits and thus improving the charging reliability of the charging device. Furthermore, its good temperature resistance allows the silicone grease thermally conductive layer to maintain stable performance over a wide temperature range, thus reliably filling the gaps between the thermally conductive plate 3 and the conductive connector 21, and / or the gaps between the thermally conductive plate 3 and the housing 1, maintaining high thermal conductivity between the thermally conductive plate 3 and the conductive connector 21, and between the thermally conductive plate 3 and the housing 1. In practical applications, taking the setting of a thermally conductive layer between the heat-conducting plate 3 and the conductive connector 21 as an example, the silicone grease is usually in paste form. By applying silicone grease to the surface of the conductive connector 21 and / or the heat-conducting plate 3, a silicone grease thermally conductive layer can be formed between the conductive connector 21 and the heat-conducting plate 3. It can be understood that the setting of a thermally conductive layer between the heat-conducting plate 3 and the housing 1 can be referred to the case of setting a thermally conductive layer between the heat-conducting plate 3 and the conductive connector 21, and will not be elaborated here.

[0099] In some embodiments of this application, the conductive structure 2 further includes a connector 23, which is connected to the housing 1 and electrically connected to the conductive structure 2; wherein at least a portion of the connector 23 corresponds to the position of the heat dissipation structure 11. The connector 23 is used for electrical connection with a high-voltage distribution box to achieve power transmission. The conductive structure 2 also includes a charging port base 24, which is connected to the housing 1 and electrically connected to the conductive structure 2; wherein at least a portion of the charging port base 24 corresponds to the position of the heat dissipation structure 11. The charging port base 24 is used for electrical connection with a charging gun to achieve power transmission.

[0100] In some embodiments of this application, since at least a portion of the connector 23 and the charging port base 24 correspond to the position of the heat dissipation structure 11, heat dissipation can be achieved for the connector 23 and the charging port base 24, which is beneficial to improving the overall heat dissipation effect of the charging device.

[0101] Specifically, the functional components include a connector 23, a contactor 22, and a charging port base 24, which are electrically connected in sequence. The connector 23 is used to electrically connect to the high-voltage distribution box 300. The contactor 22 is used to control the connection or disconnection between the connector 23 and the charging port base 24. The charging port base 24 is used to electrically connect to an external charging gun. Specifically, the housing 1 also includes side plates, a bottom plate 12, and side plates that enclose a receiving cavity. The connector 23 and the charging port base 24 are disposed on opposite side plates of the housing 1 and extend at least partially into the receiving cavity. The contactor 22 is disposed within the receiving cavity and corresponds to the position of the heat dissipation structure 11. The conductive connector 21 includes a first conductive connector 211 and a second conductive connector 212. The first conductive connector 211 is disposed between the connector 23 and the contactor 22 to achieve electrical connection between the connector 23 and the contactor 22. The second conductive connector 212 is disposed between the contactor 22 and the charging port base 24 to achieve electrical connection between the connector 23 and the contactor 22. At least a portion of the first conductive connector 211 and the second conductive connector 212 abuts against the first side of the heat-conducting plate 3.

[0102] It should be noted that, taking the first conductive connector 211 as an example, in one embodiment, the first conductive connector 211 can be composed of multiple independent conductive copper busbars interconnected. By adaptively bending a portion of the conductive copper busbars to connect with various functional devices, and with at least a portion of the conductive copper busbars abutting against the first side of the heat-conducting plate 3, reliable heat conduction can be achieved. In another embodiment, the first conductive connector 211 can be a single conductive copper busbar, which is adaptively bent to connect with various functional devices, and at least a portion of the conductive copper busbar abuts against the first side of the heat-conducting plate 3 to achieve reliable heat conduction.

[0103] In some embodiments of this application, the charging device further includes a temperature sensor for at least acquiring temperature information of the conductive structure 2. The charging device also includes a controller 4 electrically connected to the temperature sensor, which is used to acquire and, based on the temperature information, change the current flowing through the conductive structure 2. The controller 4 may integrate functions such as a charging stop button, lighting, charging status indicator color, forced unlocking, and temperature detection, thereby reducing the wiring of the controller 4 and avoiding problems such as incorrect wiring or interference.

[0104] Specifically, multiple temperature sensors can be installed at locations where heat generation occurs, such as contactor 22, connector terminals, charging port terminals, first conductive connector 211, and second conductive connector 212. This allows for real-time monitoring of the heat generation of each component of the charging device. During charging, the controller 4 acquires and compares the temperature information from each temperature sensor to determine the maximum temperature. By comparing the maximum temperature with a preset temperature range, if the maximum temperature is lower than the lower limit of the preset temperature range, the charging device is controlled to enter a high-current charging state; if the maximum temperature is within the preset temperature range, the charging device is controlled to switch to a current-limiting state to reduce its temperature; if the maximum temperature is higher than the upper limit of the preset temperature range, the charging device is controlled to switch to a shutdown state. Here, high-current charging refers to charging with a large current, current-limiting refers to limiting the charging current (i.e., reducing the current), and shutdown refers to stopping charging (i.e., the current is 0). It should be noted that this embodiment does not limit the preset temperature range, and those skilled in the art can adjust it according to actual needs.

[0105] In addition, for charging devices used in vehicles, the temperature sensor is also electrically connected to the vehicle controller. The vehicle controller can acquire and control the heat dissipation parameters of the heat dissipation equipment (such as the vehicle cooling water tank) based on the temperature information, such as flow rate, flow rate and temperature, so as to adjust the heat dissipation performance of the heat dissipation structure 11 to adapt to different working states of the charging device.

[0106] In summary, the charging device provided in this application has at least the following advantages:

[0107] In this embodiment, due to the heat dissipation structure, the temperature of the conductive structure can be effectively reduced through heat exchange between the heat dissipation structure and the conductive structure, thereby achieving reliable heat dissipation of the conductive structure. This allows the charging device to maintain a high charging power and improves the charging efficiency of the vehicle.

[0108] Referring to Figure 3, a structural schematic diagram of a first charging device of a charging system provided in an embodiment of this application is shown; referring to Figure 4, a structural schematic diagram of a second charging device of a charging system provided in an embodiment of this application is shown; and referring to Figure 5, a working principle diagram of a charging system provided in an embodiment of this application is shown.

[0109] As shown in Figures 3 and 4, this application embodiment also provides a charging system, including the charging device described above. By providing the heat dissipation structure 11, reliable heat dissipation of the charging device can be achieved, which is beneficial to improving the operational reliability of the charging device and the charging system.

[0110] It should be noted that in the embodiments of this application, the structure of the charging device is the same as that of the charging device in any of the above embodiments, and its beneficial effects are also similar, so they will not be described in detail here.

[0111] In some optional embodiments of this application, the charging device includes a first charging device 100, which includes a first charging port base 101 and a second charging port base 102 with different power; and / or, the charging device includes a second charging device 200, which includes a third charging port base 201, which has the same power as one of the first charging port base 101 and the second charging port base 102.

[0112] Specifically, in one embodiment, the charging device includes a first charging device 100, which includes a first charging port base 101 and a second charging port base 102 with different power. That is, the first charging device 100 is a dual-port charging device, which can meet different charging needs.

[0113] In another embodiment, the charging device includes a second charging device 200, which includes a third charging port base 201. That is, the second charging device 200 is a single-port charging device, which can simplify the structure of the charging device while satisfying the charging needs.

[0114] In another embodiment, the charging device includes a first charging device 100 and a second charging device 200. The first charging device 100 includes a first charging port base 101 and a second charging port base 102 with different power. The second charging device 200 includes a third charging port base 201, and the third charging port base 201 has the same power as one of the first charging port base 101 and the second charging port base 102. That is, the charging device is a dual-port and single-port charging device. In this way, during the charging process, charging can be performed simultaneously through two charging port bases 24 with the same power (i.e., the third charging port base 201 and the first charging port base 101, or the third charging port base 201 and the second charging port base 102), thereby greatly improving the charging efficiency.

[0115] It should be noted that the first charging port base 101 can be an MCS (Megawatt Charging System) charging port base, a DC fast charging system designed specifically for commercial heavy-duty electric vehicles. Designed with commercial trucks and other high-power applications in mind, it aims to overcome the limitations of CCS by pushing the boundaries of charging capacity and improving communication. With a processing capacity of up to 3000A, MCS will become the primary standard for long-haul trucks, aircraft, and other commercial vehicles. Its higher power output makes it ideal for time-sensitive applications where charging is critical. Furthermore, according to a recent white paper published by CharIN, MCS also provides improved communication robustness, which will reduce downtime associated with charging failure events.

[0116] The second charging port base 102 can be a CCS (Combined Charging System) charging port base, which is a charging interface system that combines AC and DC charging functions. Currently, it represents the anticipated transition from the CCS (Combined Charging System) to the MCS (Megawatt-class Charging System) charging standard. Compared to CCS, MCS offers advantages such as shorter charging times, higher efficiency, and enhanced safety. Specifically, while CCS may typically take several hours to charge a truck, MCS can provide up to approximately 3.5MW of power, significantly reducing the charging time for large battery packs—completing the charging task in a very short time. Furthermore, the technology behind MCS is not only about speed; it is designed to improve efficiency, ensuring that the maximum amount of energy is transferred to the vehicle's battery with minimal loss. In addition, with increased power, enhanced safety measures are required; MCS is equipped with an advanced cooling system to handle rapid energy transfer, ensuring the safety of equipment and the vehicle.

[0117] The third charging port base 201 can be either an MCS charging port base or a CCS charging port base. In one embodiment, both the third charging port base 201 and the second charging port base 102 are CCS charging port bases, and a single CCS charging port base can achieve approximately 500A of rated charging. Thus, during the charging process, by electrically connecting the two charging guns to the third charging port base 201 and the second charging port base 102 respectively, a rated charging of 1000A can theoretically be achieved, thereby significantly improving the charging efficiency of the charging system.

[0118] In some embodiments of this application, the charging system further includes a high-voltage distribution box 300, which is electrically connected to the first charging port base 101, the second charging port base 102 and the third charging port base 201 respectively to realize charging.

[0119] Specifically, the first charging device 100 further includes a first electrical switch 103, which is disposed between the high-voltage distribution box 300 and the first charging port base 101. The first electrical switch 103 is used to connect or disconnect the high-voltage distribution box 300 and the first charging port base 101. The first charging device 100 also includes a second electrical switch 104, which is disposed between the high-voltage distribution box 300 and the second charging port base 102. The second electrical switch 104 is used to connect or disconnect the high-voltage distribution box 300 and the second charging port base 102. The second charging device 200 further includes a fourth electrical switch 203, which is disposed between the high-voltage distribution box 300 and the third charging port base 201. The fourth electrical switch 203 is used to connect or disconnect the high-voltage distribution box 300 and the third charging port base 201.

[0120] Taking the first electrical switch 103 as an example, during the charging process, opening or closing the first electrical switch can connect or disconnect the circuit between the high-voltage distribution box 300 and the first charging port base 101, thereby enabling the transmission or cessation of electrical energy transmission as needed. The second electrical switch 104 and the fourth electrical switch 203 work similarly and will not be described in detail here. In one embodiment, the first electrical switch 103, the second electrical switch 104, and the fourth electrical switch 203 can be selected from contactors 22.

[0121] In some embodiments of this application, the first charging device 100 further includes a third electrical switch 105, which is disposed between the first charging port base 101 and the second charging port base 102. The third electrical switch 105 is used to connect or disconnect the first charging port base 101 and the second charging port base 102. Specifically, the two ends of the third electrical switch 105 are respectively connected to the line between the first electrical switch 103 and the first charging port base 101, and the line between the second electrical switch 104 and the first power distribution connector 106. The third electrical switch 105 may be a contactor 22.

[0122] Taking the first charging port base 101 as the MCS charging port base and the second charging port base 102 as the CCS charging port base as an example, since the current transmitted by the MCS charging port base is much greater than that transmitted by the CCS charging port base, the high-voltage distribution box 300 needs to allocate more cables to the MCS charging port base compared to the CCS charging port base. Based on this, by setting a third electrical switch 105, the MCS charging port base can reuse the cables of the CCS charging port base, thereby reducing the number of cables in the high-voltage distribution box 300 and achieving the goal of cost reduction and weight reduction.

[0123] In practical applications, the first charging device 100 also includes a first power distribution connector 106 and a shunt connector 107. The first power distribution connector 106 is located between the high-voltage distribution box 300 and the electrical switches (including the first electrical switch 103 and the second electrical switch 104). When both the first electrical switch 103 and the second electrical switch 104 are open, the electrical energy input to the first charging port base 101 and the second charging port base 102 can be transmitted to the high-voltage distribution box 300 through the first power distribution connector 106 to achieve charging. The shunt connector 107 is electrically connected to the first power distribution connector 106 so that part of the current of the first power distribution connector 106 is distributed to the shunt connector 107. The first power distribution connector 106 and the high-voltage distribution box 300 can be electrically connected using copper rods or copper wire cables. It is understood that compared with copper wire cables, copper rod cables have a larger cross-sectional area and a larger rated overcurrent, which can reduce the number of cables required to a certain extent. In one embodiment, a 254mm² copper rod cable is used, and its rated overcurrent can reach 800A.

[0124] Furthermore, the second charging device 200 also includes a second power distribution connector 202, which is electrically connected to the shunt connector 107 and the fourth electrical switch 203, respectively. This allows the third charging port base 201 to reuse the cable of the first charging port base 101, thereby reducing the number of cables in the high-voltage distribution box 300 and achieving cost reduction and weight reduction. When the fourth electrical switch 203 is open, the electrical energy input to the third charging port base 201 can be transmitted to the high-voltage distribution box 300 sequentially through the second power distribution connector 202, the shunt connector 107, and the first power distribution connector 106 to achieve charging. The second power distribution connector 202 and the shunt connector 107 can be electrically connected using copper rod or copper wire cables. It is understood that compared to copper wire cables, copper rod cables have a larger cross-sectional area and a larger rated current, which can reduce the number of cables required to a certain extent. In one embodiment, a 254mm² copper rod cable is used, and its rated current can reach 800A.

[0125] Furthermore, when both the second charging port base 102 and the third charging port base 201 are CCS charging port bases, the charging system also includes two on-board chargers (OBCs) for converting alternating current (AC) into direct current (DC) suitable for the vehicle's battery pack. Specifically, the on-board chargers include a first on-board charger 400 electrically connected to the second charging port base 102, and a second on-board charger 500 electrically connected to the third charging port base 201.

[0126] Taking the first charging port base 101 as the MCS charging port base, the second charging port base 102 and the third charging port base 201 as the CCS charging port base as examples, the following describes several working modes of the charging system of the embodiment of this application in conjunction with Figure 5.

[0127] (1) Working mode of the first charging port base 101 (i.e., MCS charging port base)

[0128] Close the first electrical switch 103 and the third electrical switch 105 to electrically connect the first charging port base 101 (i.e., the MCS charging port base) to the high-voltage distribution box 300 for DC charging. During this process, the first charging port base 101 (i.e., the MCS charging port base) can reuse part of the cable of the second charging port base 102 (i.e., the CCS charging port base).

[0129] (2) Working mode of the second charging port base 102 (i.e., CCS charging port base)

[0130] The second electrical switch 104 is closed, which connects the second charging port base 102 (i.e., the CCS charging port base) to the high-voltage distribution box 300 for DC charging. At the same time, the AC portion of the second charging port base 102 (i.e., the CCS charging port base) is AC charged through the first on-board charger 400.

[0131] (3) Working mode of the third charging port base 201 (i.e., CCS charging port base)

[0132] Close the fourth electrical switch 203 to connect the third charging port base 201 (i.e., the CCS charging port base) to the high-voltage distribution box 300 for DC charging. At the same time, the AC portion of the third charging port base 201 (i.e., the CCS charging port base) is AC charged through the second on-board charger 500.

[0133] (4) Simultaneous operation mode of the second charging port base 102 and the third charging port base 201 (i.e., two CCS charging port bases)

[0134] Closing the second electrical switch 104 and the fourth electrical switch 203 connects the second charging port base 102 and the third charging port base 201 (i.e., the two CCS charging port bases) to the high-voltage distribution box 300 for DC charging. Simultaneously, the AC portion of the second charging port base 102 (i.e., the CCS charging port base) is AC charged via the first on-board charger 400, and the AC portion of the third charging port base 201 (i.e., the CCS charging port base) is AC charged via the second on-board charger 500.

[0135] This application also provides another charging system, including at least one first charging device 100 with a charging power in the megawatt range, wherein the first charging device 100 is the charging device described above. Specifically, the first charging device 100 includes a first charging port base 101 and a second charging port base 102 with different power ratings, wherein the charging power of one of the first charging port base 101 and the second charging port base 102 is in the megawatt range. This enables high-power charging, effectively shortens charging time, and greatly improves charging efficiency.

[0136] It should be noted that the first charging device 100 has the same structure as the first charging device 100 of the aforementioned charging system, and its beneficial effects are also similar, so it will not be described in detail here. It is understood that megawatt-level charging requires handling extremely high current and voltage, which places extremely high demands on the heat dissipation design of the charging device. Since the first charging device 100 in this embodiment is provided with a heat dissipation structure 11, reliable heat dissipation of the first charging device 100 can be achieved through heat exchange between the heat dissipation structure 11 and the conductive structure 2, allowing the charging device to maintain a high charging power, which is beneficial to improving the charging efficiency of the vehicle.

[0137] This application also provides a vehicle that includes the charging device described above, or any of the charging systems described above.

[0138] It should be noted that in the embodiments of this application, the structure of the charging device or charging system is the same as that of the charging device or charging system in any of the above embodiments, and its beneficial effects are also similar, so they will not be described in detail here.

[0139] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0140] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A charging device, wherein, include: Shell and conductive structure; The conductive structure is used to achieve the switching on and off of at least two electrical connection points; The housing is provided with a heat dissipation structure, which exchanges heat with the conductive structure.

2. The charging device according to claim 1, wherein, The conductive structure is connected to the housing.

3. The charging device according to claim 1 or 2, wherein, The housing includes a base plate, and the conductive structure and the heat dissipation structure are disposed on opposite sides of the base plate.

4. The charging device according to claim 3, wherein, At least a portion of the conductive structure abuts against the base plate.

5. The charging device according to claim 3 or 4, wherein, The conductive structure includes a contactor connected to the base plate.

6. The charging device according to claim 5, wherein, The conductive structure further includes a conductive connector, which abuts against the base plate and is electrically connected to the contactor.

7. The charging device according to claim 5 or 6, wherein, The contactor is located on the side of the conductive connector opposite to the base plate.

8. The charging device according to any one of claims 3-7, wherein, The heat dissipation structure includes a heat dissipation chamber for containing a heat dissipation medium.

9. The charging device according to claim 8, wherein, The base plate has a groove on the side opposite to the conductive structure, and the groove is used to allow the heat dissipation medium to flow.

10. The charging device according to claim 9, wherein, The housing also includes a sealing plate that covers the opening of the groove and encloses the groove to form the heat dissipation chamber.

11. The charging device according to claim 9 or 10, wherein, The heat dissipation structure also includes a flow guide, which is disposed in the groove to form a heat dissipation channel in the heat dissipation chamber.

12. The charging device according to any one of claims 3-8, wherein, The heat dissipation structure also includes a liquid inlet channel and a liquid outlet channel, both of which are located on the base plate.

13. The charging device according to claim 12, wherein, The heat dissipation channel includes an inlet end and an outlet end; the liquid inlet channel is connected to the inlet end, and the liquid outlet channel is connected to the outlet end.

14. The charging device according to claim 1 or 2, wherein, The charging device further includes a heat-conducting structure disposed between the conductive structure and the housing, the heat-conducting structure being used to conduct the heat generated by the conductive structure to the housing.

15. The charging device according to claim 14, wherein, The thermally conductive structure at least partially covers the heat dissipation structure.

16. The charging device according to claim 14 or 15, wherein, The thermally conductive structure includes a thermally conductive plate, which is thermally connected to at least a portion of the conductive structure and the housing.

17. The charging device according to claim 16, wherein, The heat-conducting plate is a ceramic heat-conducting plate.

18. The charging device according to claim 16 or 17, wherein, The thermally conductive structure further includes a thermally conductive layer, which is disposed between the thermally conductive plate and the conductive structure; And / or, the heat-conducting layer is disposed between the heat-conducting plate and the housing.

19. The charging device according to claim 18, wherein, The thermally conductive layer is a silicone grease thermally conductive layer.

20. The charging device according to claim 1 or 2, wherein, The conductive structure further includes a connector, which is connected to the housing and electrically connected to the conductive structure; At least a portion of the connector corresponds to the position of the heat dissipation structure.

21. The charging device according to claim 1 or 2, wherein, The conductive structure further includes: a charging port base, which is connected to the housing and electrically connected to the conductive structure; At least a portion of the charging port base corresponds to the position of the heat dissipation structure.

22. The charging device according to claim 1, wherein, The charging device further includes a temperature sensor, which is used to collect temperature information of at least the conductive structure.

23. The charging device according to claim 22, wherein, The charging device further includes a controller, which is electrically connected to the temperature sensor, and is used to acquire at least the temperature information and change the current flowing through the conductive structure.

24. A charging system, wherein, Includes the charging device according to any one of claims 1-23.

25. The charging system according to claim 24, wherein, The charging device includes a first charging device, which includes a first charging port base and a second charging port base with different power. And / or, the charging device includes a second charging device, the second charging device including a third charging port base, the third charging port base having the same power as one of the first charging port base and the second charging port base.

26. The charging system according to claim 25, wherein, The charging system also includes a high-voltage distribution box, which is electrically connected to the first charging port base, the second charging port base, and the third charging port base to achieve charging.

27. The charging system according to claim 26, wherein, The first charging device further includes a first electrical switch, which is disposed between the high-voltage distribution box and the first charging port base. The first electrical switch is used to connect or disconnect the high-voltage distribution box and the first charging port base.

28. The charging system according to claim 26, wherein, The first charging device further includes a second electrical switch, which is disposed between the high-voltage distribution box and the second charging port base. The second electrical switch is used to connect or disconnect the high-voltage distribution box and the second charging port base.

29. The charging system according to claim 26, wherein, The second charging device further includes a fourth electrical switch, which is disposed between the high-voltage distribution box and the third charging port base. The fourth electrical switch is used to connect or disconnect the high-voltage distribution box and the third charging port base.

30. The charging system according to claim 25, wherein, The first charging device further includes a third electrical switch, which is disposed between the first charging port base and the second charging port base, and is used to connect or disconnect the first charging port base and the second charging port base.

31. A charging system, wherein, It includes at least one first charging device with a charging power in the megawatt range.

32. The charging system according to claim 31, wherein, The first charging device is the charging device according to any one of claims 1-30.

33. The charging system according to claim 32, wherein, The first charging device includes a first charging port base and a second charging port base with different power, wherein the charging power of one of the first charging port base and the second charging port base is in the megawatt range.

34. The charging system according to claim 33, wherein, The charging system also includes a high-voltage distribution box, which is electrically connected to the first charging port base and the second charging port base respectively to realize charging.

35. The charging system according to claim 34, wherein, The first charging device further includes a first electrical switch, which is disposed between the high-voltage distribution box and the first charging port base. The first electrical switch is used to connect or disconnect the high-voltage distribution box and the first charging port base.

36. The charging system according to claim 34, wherein, The first charging device further includes a second electrical switch, which is disposed between the high-voltage distribution box and the second charging port base. The second electrical switch is used to connect or disconnect the high-voltage distribution box and the second charging port base.

37. The charging system according to claim 34, wherein, The first charging device further includes a third electrical switch, which is disposed between the first charging port base and the second charging port base, and is used to connect or disconnect the first charging port base and the second charging port base.

38. A vehicle, wherein, This includes the charging device according to any one of claims 1-23, or the charging system according to any one of claims 24-30, or the charging system according to any one of claims 31-37.

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