Charging terminal and charging device

Abstract

The application discloses a charging terminal and a charging device, the charging terminal comprises a terminal body and a heat exchange element, the terminal body comprises a wire harness segment and a heat dissipation plate segment connected along a first direction, the wire harness segment is in a cylindrical structure, the heat dissipation plate segment is in a flat plate structure, a stop segment is arranged between the wire harness segment and the heat dissipation plate segment, the heat dissipation plate segment has a first side face and a second side face opposite to each other, and the heat exchange element comprises a first heat exchange element and a second heat exchange element, the first heat exchange element is arranged on the first side face, and the second heat exchange element is arranged on the second side face. According to the charging terminal provided by the embodiment of the application, the heat exchange element can better exchange heat on both sides of the terminal body, so that the terminal body can better be cooled, and the safety and stability of the charging terminal are improved.

Description

Technical Field

[0001] This invention relates to the field of device charging technology, and in particular to a charging terminal and a charging device. Background Technology

[0002] In related technologies, the charging device and the charging base are generally connected by a sliding connection, resulting in a large contact resistance. When the current is large, Joule heating can easily cause the terminal temperature to rise too quickly and the steady-state temperature to be too high, thereby affecting electrical safety and operational stability. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a charging terminal in which the heat exchange element can effectively exchange heat on both sides of the terminal body, thereby enabling the terminal body to cool down better and improving the safety and stability of the charging terminal.

[0004] According to an embodiment of the present invention, the charging terminal includes: a terminal body, the terminal body including a wire harness segment and a heat sink segment connected along a first direction, the wire harness segment having a cylindrical structure, the heat sink segment having a flat structure, a stop segment being provided between the wire harness segment and the heat sink segment, the heat sink segment having a first side and a second side facing away from each other; and a heat exchanger, the heat exchanger including a first heat exchanger and a second heat exchanger, the first heat exchanger being disposed on the first side and the second heat exchanger being disposed on the second side.

[0005] According to the embodiments of the present invention, by constructing a heat dissipation plate segment with a flat plate structure, the heat dissipation area of ​​the heat dissipation plate segment can be increased, and the arrangement of the first heat exchanger and the second heat exchanger on the two sides of the heat dissipation plate segment can be better realized, thereby improving the heat dissipation effect of the heat dissipation plate segment, thereby achieving better cooling of the charging terminal, and improving the electrical safety and operational stability of the charging terminal.

[0006] In addition, the charging terminal according to the present invention may also have the following additional technical features: In some embodiments of the present invention, the first heat exchanger has a first heat exchange channel, the second heat exchanger has a second heat exchange channel, the first heat exchange channel and the second heat exchange channel are connected, the first heat exchange channel has a liquid inlet, and the second heat exchange channel has a liquid outlet.

[0007] In some embodiments of the present invention, the first heat exchanger includes a first heat exchange body and a first cover plate, the first heat exchange body having an opening facing away from the first heat exchange channel of the terminal body, the first cover plate being used to cover the opening of the first heat exchange channel, and / or, the second heat exchanger includes a second heat exchange body and a second cover plate, the second heat exchange body having an opening facing away from the second heat exchange channel of the terminal body, the second cover plate being used to cover the opening of the second heat exchange channel.

[0008] In some embodiments of the present invention, the first heat exchange channel and the second heat exchange channel both extend in a tortuous manner along the first direction and are symmetrically arranged about the heat dissipation plate segment. Along the second direction, the liquid inlet and the liquid outlet are both located on the same side of the heat dissipation plate segment. The second direction is the width direction of the heat dissipation plate segment, and the first direction and the second direction are perpendicular to each other.

[0009] In some embodiments of the present invention, the heat exchanger further includes a connecting pipe and a sealing structure. A through hole is provided at one end of the heat dissipation plate segment near the stop segment. The connecting pipe passes through the through hole to connect the first heat exchange channel and the second heat exchange channel. The sealing structure is used to seal between the connecting pipe and the first heat exchange channel, and between the connecting pipe and the second heat exchange channel. The axis of the wire harness segment intersects the axis of the through hole.

[0010] In some embodiments of the present invention, along the first direction, the heat sink segment has a first segment and a second segment, the first segment being located at one end of the second segment near the stop segment, the first heat exchanger and the second heat exchanger being located on both sides of the first segment, and the charging terminal further includes a cable, the end of which is fixedly connected to the side of the second segment, wherein the cable includes a first cable and a second cable, the first cable and the second cable being fixedly connected to the two sides of the second segment respectively.

[0011] In some embodiments of the present invention, the charging terminal further includes a thermally conductive layer disposed between the first heat exchanger and the heat sink segment, and / or, the thermally conductive layer is disposed between the second heat exchanger and the heat sink segment.

[0012] In some embodiments of the present invention, the first heat exchanger, the second heat exchanger, and the heat sink segment are all provided with corresponding mounting holes. The charging terminal further includes a fixing member, which is adapted to cooperate with the mounting holes to fix the first heat exchanger and the second heat exchanger on both sides of the heat sink segment.

[0013] In some embodiments of the present invention, along the second direction, the width of the heat sink segment is greater than the diameter of the wire harness segment, and / or, along the third direction, the thickness of the heat sink segment is less than the diameter of the wire harness segment, wherein the first direction, the second direction, and the third direction are all perpendicular to each other.

[0014] The present invention also proposes a charging device having the charging terminals described in the above embodiments.

[0015] According to the charging device of the present invention, by providing the charging terminals of the above embodiments, the charging terminals can be cooled down better during charging. Therefore, by providing the charging terminals with better cooling effect, the safety and stability of the charging device can be improved.

[0016] Additional aspects and advantages of the invention 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 the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the charging terminal in some embodiments of the present invention.

[0018] Figure 2 This is an exploded view of the charging terminals of some embodiments of the present invention.

[0019] Figure 3 This is a schematic diagram of the cooling circuit of the charging terminal in some embodiments of the present invention.

[0020] Figure 4 These are simulation diagrams of the charging terminals of some embodiments of the present invention.

[0021] Figure label: 100. Charging terminal; 1. Terminal body; 11. Wire harness segment; 12. Heat sink segment; 121. First side; 122. Through hole; 123. First segment; 124. Second segment; 13. Stop segment; 21. First heat exchanger; 210. First heat exchange channel; 211. First heat exchange body; 212. First cover plate; 22. Second heat exchanger; 220. Second heat exchange channel; 221. Second heat exchange body; 222. Second cover plate; 23. Water nozzle; 24. Connecting pipe; 25. Sealing structure; 31. First cable; 32. Second cable; 41. Mounting hole; 42. Fastener; 51. Assembly hole; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown 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 the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] The following is for reference. Figures 1-4 A charging terminal 100 according to an embodiment of the present invention is described.

[0026] like Figure 1 and Figure 2 As shown, the charging terminal 100 according to an embodiment of the present invention includes a terminal body 1 and a heat exchanger. The terminal body 1 includes a wire harness segment 11 and a heat sink segment 12 connected along a first direction X. The wire harness segment 11 has a cylindrical structure, and the heat sink segment 12 has a flat structure. A stop segment 13 is provided between the wire harness segment 11 and the heat sink segment 12. The heat sink segment 12 has a first side surface 121 and a second side surface opposite to each other. The heat exchanger includes a first heat exchanger 21 and a second heat exchanger 22. The first heat exchanger 21 is disposed on the first side surface 121, and the second heat exchanger 22 is disposed on the second side surface.

[0027] For example, the terminal body 1 can be a one-piece molded part, thereby the wire harness segment 11 and the heat sink segment 12 can have good connection strength.

[0028] For example, the heat sink segment 12 can be a cuboid structure, and the end face of the heat sink segment 12 facing the wire harness segment 11 can also be rectangular, and the axis of the wire harness segment 11 can pass through the intersection of the diagonals of the rectangle.

[0029] In the above technical solution, the terminal body 1 is made of metal material and is used to conduct the circuit. When the terminal body 1 is energized, it will generate heat. In order to improve the heat dissipation effect of the terminal body 1, in this application, the terminal body 1 is formed into two parts: one part is a cylindrical wire harness segment 11, and the other part is a flat heat dissipation plate segment 12. The heat dissipation plate segment 12 can dissipate heat well, and the first heat exchanger 21 and the second heat exchanger 22 can be arranged on the first side 121 and the second side 121 of the heat dissipation plate segment 12, respectively. The first heat exchanger 21 can be attached to the first side 121, and the second heat exchanger 22 can be attached to the second side 121. This allows the heat dissipation plate segment 12 to exchange heat with the first heat exchanger 21 and the second heat exchanger 22, which is beneficial to the cooling of the heat dissipation plate segment 12. Therefore, the electrical safety and operational stability of the charging terminal 100 can be improved.

[0030] Furthermore, by setting the stop section 13, the positions of the first heat exchanger 21 and the second heat exchanger 22 can be better positioned, which is beneficial to the assembly of the first heat exchanger 21 and the second heat exchanger 22. In addition, the first heat exchanger 21 and the second heat exchanger 22 can also abut against the stop section 13 respectively, thereby enabling better heat exchange of the stop section 13.

[0031] For example, the integrally formed terminal body 1 includes three parts: a wire harness segment 11, a stop segment 13, and a heat sink segment 12. The stop segment 13 is cylindrical and its diameter is larger than that of the wire harness segment 11. Furthermore, the wire harness segment 11, the stop segment 13, and the heat sink segment 12 are all formed of metal material. Thus, the first heat exchanger 21 and the second heat exchanger 22 can also cool the stop segment 13, thereby effectively cooling the charging terminal 100.

[0032] According to the embodiments of the present invention, the charging terminal 100, by constructing a heat dissipation plate segment 12 with a flat plate structure, can better increase the heat dissipation area of ​​the heat dissipation plate segment 12, and can also better realize the arrangement of the first heat exchanger 21 and the second heat exchanger 22 on the two sides of the heat dissipation plate segment 12, thereby better improving the heat dissipation effect of the heat dissipation plate segment 12, thereby better achieving the cooling of the charging terminal 100, and can better improve the electrical safety and operational stability of the charging terminal 100.

[0033] In some embodiments of the present invention, such as Figures 1-3 As shown, the first heat exchanger 21 has a first heat exchange channel 210, and the second heat exchanger 22 has a second heat exchange channel 220. The first heat exchange channel 210 and the second heat exchange channel 220 are connected. The first heat exchange channel 210 has a liquid inlet, and the second heat exchange channel 220 has a liquid outlet.

[0034] In other words, the coolant can enter the first heat exchange channel 210 through the inlet, and then cool the first side 121 of the heat sink segment 12 as it flows through the first heat exchange channel 210. The coolant can then enter the second heat exchange channel 220 from the first heat exchange channel 210, thereby cooling the second side of the heat sink segment 12, and finally flow out from the outlet. In this example, by connecting the first heat exchange channel 210 and the second heat exchange channel 220, the length of the coolant's flow path can be increased, allowing the coolant to better absorb the heat dissipated by the heat sink segment 12. Simultaneously, the first heat exchange channel 210 and the second heat exchange channel 220 can share the same inlet and outlet, reducing the number of inlets and outlets, thus reducing external piping and facilitating the optimization of the structural arrangement of the charging terminal 100. In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the first heat exchanger 21 includes a first heat exchange body 211 and a first cover plate 212. The first heat exchange body 211 has an opening facing away from the terminal body 1 and a first heat exchange channel 210. The first cover plate 212 is used to cover the opening of the first heat exchange channel 210. And / or, the second heat exchanger 22 includes a second heat exchange body 221 and a second cover plate 222. The second heat exchange body 221 has an opening facing away from the terminal body 1 and a second heat exchange channel 220. The second cover plate 222 is used to cover the opening of the second heat exchange channel 220.

[0035] In other words, the first heat exchanger 21 can be composed of two parts: the first heat exchanger body 211 and the first cover plate 212. The first heat exchanger body 211 and the first cover plate 212 can be processed separately and then combined. For example, the first heat exchanger body 211 can be a one-piece molded part, or the first heat exchange channel 210 can be constructed on the first heat exchanger body 211 after the first heat exchanger body 211 is processed. The structure of the first heat exchanger plate is simple and the production and processing are convenient, which can effectively reduce the production cost of the first heat exchanger plate.

[0036] The first heat exchanger 21, which is assembled from the first heat exchanger body 211 and the first cover plate 212, can be well maintained and the maintenance cost of the first heat exchanger 21 can be well reduced.

[0037] Similarly, the second heat exchanger 22 can be composed of two parts: the second heat exchanger body 221 and the second cover plate 222. The second heat exchanger body 221 and the second cover plate 222 can be processed separately and then combined. For example, the second heat exchanger body 221 can be a one-piece molded part, or the second heat exchange channel 220 can be constructed on the second heat exchanger body 221 after the second heat exchanger body 221 is processed. The structure of the second heat exchanger plate is simple and the production and processing are convenient, which can effectively reduce the production cost of the second heat exchanger plate.

[0038] The second heat exchanger 22, which is assembled from the second heat exchanger body 221 and the second cover plate 222, can be better maintained and the maintenance cost of the second heat exchanger 22 can be reduced.

[0039] In some embodiments of the present invention, such as Figures 1-3 As shown, the first heat exchange channel 210 and the second heat exchange channel 220 both extend in a tortuous manner along the first direction X and are symmetrically arranged about the heat dissipation plate segment 12. Along the second direction Y, the liquid inlet and the liquid outlet are located on the same side of the heat dissipation plate segment 12. The second direction Y is the width direction of the heat dissipation plate segment 12, and the first direction X and the second direction Y are perpendicular to each other.

[0040] like Figure 2 and Figure 3 As shown, the first heat exchange channel 210 extends in a tortuous manner along the first direction X, and in the second direction Y, the first heat exchange channel 210 can extend to positions close to the two sides of the first heat exchange plate, thereby effectively cooling the heat dissipation plate segment 12 in the width direction. Similarly, the second heat exchange channel 220 extends in a tortuous manner along the first direction X, and in the second direction Y, the second heat exchange channel 220 can extend to positions close to the two sides of the second heat exchange plate, thereby effectively cooling the heat dissipation plate segment 12 in the width direction.

[0041] Furthermore, the first heat exchange channel 210 and the second heat exchange channel 220 are symmetrically arranged about the heat dissipation plate segment 12. That is, the tortuous paths of the first heat exchange channel 210 and the second heat exchange channel 220 are completely identical, which is beneficial to the uniform distribution of coolant flow. The flow resistance of the coolant in the first heat exchange channel 210 and the second heat exchange channel 220 is also relatively consistent, which can improve the stability of heat exchange efficiency and make the temperature field distribution more uniform. In addition, the identical first heat exchange channel 210 and the second heat exchange channel 220 can simplify the mold design and processing technology of the first heat exchange component 21 and the second heat exchange component 22, reducing manufacturing difficulties. Moreover, during assembly, there are no restrictions on the orientation of the first heat exchange component 21 and the second heat exchange component 22, which facilitates production, installation, and subsequent maintenance and repair.

[0042] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the heat exchanger also includes a connecting pipe 24 and a sealing structure 25. A through hole 122 is provided at one end of the heat dissipation plate segment 12 near the stop segment 13. The connecting pipe 24 passes through the through hole 122 to connect the first heat exchange channel 210 and the second heat exchange channel 220. The sealing structure 25 is used to seal between the connecting pipe 24 and the first heat exchange channel 210, and between the connecting pipe 24 and the second heat exchange channel 220. The axis of the wire harness segment 11 intersects the axis of the through hole 122.

[0043] In other words, the connecting pipe 24 passes through the heat dissipation plate section 12 via the through hole 122, which can stably connect the first heat exchange channel 210 and the second heat exchange channel 220, forming a complete and smooth heat exchange circuit. This is beneficial for the orderly circulation of coolant and can improve heat exchange efficiency and flow uniformity. The sealing structure 25 can seal the connection positions of the connecting pipe 24 and the heat exchange channels on both sides, which can effectively prevent coolant leakage and improve the sealing and reliability of the heat exchange circuit.

[0044] Furthermore, the axis of the wire harness segment 11 intersects the axis of the through hole 122, that is, in the second direction Y, the through hole 122 is located in the middle of the heat sink segment 12, which can better plan the direction and extension path of the first heat exchange channel 210 and the second heat exchange channel 220. This is beneficial for the compact and long-flow layout of the first heat exchange channel 210 and the second heat exchange channel 220 in a limited space, which can better extend the heat exchange stroke of the coolant and better improve the heat exchange time and heat exchange area between the coolant and the heat sink segment 12.

[0045] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, along the first direction X, the heat sink segment 12 has a first segment 123 and a second segment 124. The first segment 123 is located at one end of the second segment 124 near the stop segment 13. The first heat exchanger 21 and the second heat exchanger 22 are respectively located on both sides of the first segment 123. The charging terminal 100 also includes a cable. The end of the cable is fixedly connected to the side of the second segment 124. The cable includes a first cable 31 and a second cable 32. The first cable 31 and the second cable 32 are respectively fixedly connected to the two sides of the second segment 124.

[0046] In other words, the heat sink segment 12 is divided into a first segment 123 and a second segment 124 along the first direction X. The first segment 123 is close to the stop segment 13. The first heat exchanger 21 and the second heat exchanger 22 are respectively located on both sides of the first segment 123, which allows the heat exchange area to be concentrated, resulting in a compact and regular structure. This facilitates rapid heat conduction and uniform diffusion, thereby improving heat dissipation efficiency. The cable ends are fixed to the side of the second segment 124, and the first cable 31 and the second cable 32 are respectively connected to the two sides of the second segment 124. This achieves symmetrical fixation of the first cable 31 and the second cable 32 on both sides of the second segment 124, which can effectively reduce stress concentration caused by unilateral force and improve connection reliability and structural stability.

[0047] In addition, the heat exchange area and cable connection are set separately in this example, which can better avoid interference between the cable and the heat exchange component, optimize the spatial layout, and the cable fixed symmetrically on both sides is not easy to loosen or fall off during use. At the same time, it can reduce fatigue damage caused by vibration and extend service life.

[0048] For example, the ends of the first cable 31 and the second cable 32 can both be fixed to the two sides of the second segment 124 by welding.

[0049] In some embodiments of the present invention, the charging terminal 100 further includes a heat-conducting layer disposed between the first heat exchanger 21 and the heat sink segment 12, and / or, the heat-conducting layer is disposed between the second heat exchanger 22 and the heat sink segment 12.

[0050] In other words, the heat-conducting layer can better guide the transfer of heat, thereby improving the heat exchange between the first heat exchanger 21 and the second heat exchanger 22 and the heat dissipation plate segment 12, which is beneficial to improving the cooling effect of the heat dissipation plate segment 12.

[0051] For example, the thermally conductive layer may be thermally conductive silicone oil or other thermally conductive structural components, and this application does not impose any restrictions on this.

[0052] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the first heat exchanger 21, the second heat exchanger 22 and the heat sink section 12 are all provided with corresponding mounting holes 41. The charging terminal 100 also includes a fixing member 42, which is adapted to cooperate with the mounting holes 41 to fix the first heat exchanger 21 and the second heat exchanger 22 on both sides of the heat sink section 12.

[0053] For example, the fastener 42 can be a bolt, and the outer periphery of the bolt can be coated with structural adhesive to prevent the charging terminal 100 from failing to lock due to factors such as vibration, drop, aging, etc., thereby causing sealing failure.

[0054] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, along the second direction Y, the width of the heat sink segment 12 is greater than the diameter of the wire harness segment 11, and / or, along the third direction Z, the thickness of the heat sink segment 12 is less than the diameter of the wire harness segment 11. The first direction X, the second direction Y, and the third direction Z are all perpendicular to each other.

[0055] In other words, by designing the dimensions of the heat sink segment 12, for example by increasing the width of the heat sink segment 12, the area of ​​the first side 121 and the second side can be increased, thereby increasing the contact area between the heat sink segment 12 and the heat exchange component, and thus improving the heat exchange efficiency of the heat sink segment 12.

[0056] Alternatively, the thickness of the heat sink segment 12 can be reduced, thereby further improving the heat dissipation effect of the heat sink segment 12.

[0057] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the stop section 13 can be provided with a mounting hole 51, and a temperature sensor can be installed in the mounting hole 51. The temperature sensor can detect the temperature of the mating part between the charging terminal 100 and the charging port, thereby preventing excessive current or heat exchange component failure from causing excessive temperature, which can improve the safety of the charging terminal 100.

[0058] In some embodiments of the present invention, the first heat exchanger 21 and the second heat exchanger 22 may be formed of ceramic material or other high thermal conductivity insulating material, and this application does not limit this.

[0059] In a specific example, such as Figures 1-3 As shown, the charging terminal 100 dissipates heat through the first heat exchanger 21 and the second heat exchanger 22, which are mounted on the heat sink section 12. Coolant enters the first heat exchange channel 210 through the inlet, then passes through the connecting pipe 24 and enters the second heat exchange channel 220, subsequently carrying away heat from the heat sink section 12, thus achieving heat exchange between the charging terminal 100 and the coolant and reducing the temperature of the charging terminal 100. The connecting pipe 24 passes through the heat sink section 12, connecting the first heat exchange channel 210 and the second heat exchange channel 220, and is sealed by a sealing structure 25. The sealing structure 25 can be compressed and sealed using four bolts to ensure that the coolant does not overflow.

[0060] Furthermore, fixing the cable to the second segment 124 of the heat sink segment 12 effectively places the welding position of the cable to the heat sink segment 12 at a later stage, which can better avoid interference with the heat exchange components. In addition, by placing the welding position of the cable to the heat sink segment 12 at a later stage, the first cable 31 and the second cable 32 can be fixed on both sides of the second segment 124 by double-sided welding. This method can connect the welding resistance caused by welding in parallel, thereby reducing the welding resistance and further reducing heat generation.

[0061] The first heat exchanger 21 and the second heat exchanger 22 can be fixed to the heat dissipation plate section 12 by bolts. Both sides of the heat dissipation plate section 12 can be in contact with the first heat exchanger 21 and the second heat exchanger 22 respectively, which can improve the heat exchange effect. Thermal grease can be applied between the heat dissipation plate section 12 and the heat exchanger to increase the effective contact area and improve the heat dissipation efficiency.

[0062] Water nozzles 23 can be installed at the inlet and outlet. The water nozzles 23 can be arranged in a staggered manner to avoid interference with the welded joints of the cables.

[0063] Further reference Figure 4 As shown in the simulation, this application can reduce the maximum temperature of wire harness segment 11 to 63℃, demonstrating good heat dissipation. The simulation conditions were: continuous current of 600A until steady state, welding resistance of 0.02mΩ, terminal heat generation of 36W, coolant flow rate of 1L / min, and coolant composition of 50% ethylene glycol + 50% water.

[0064] The present invention also proposes a charging device having the charging terminal 100 of the above embodiments.

[0065] According to the charging device of the present invention, by providing the charging terminal 100 of the above embodiment, the charging terminal 100 can be cooled down better during charging. Therefore, by providing the charging terminal 100 with a better cooling effect, the safety and stability of the charging device can be improved.

[0066] For example, the charging device may include a charging gun, which can be applied to a charging station.

[0067] For example, the charging equipment may include a vehicle.

[0068] Other configurations and operations of the charging terminal 100 and charging device according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0069] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," 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 the invention. 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.

[0070] Although embodiments of the invention 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 the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A charging terminal (100), characterized in that, include: Terminal body (1), the terminal body (1) includes a wire harness segment (11) and a heat sink segment (12) connected along a first direction (X), the wire harness segment (11) is a cylindrical structure, the heat sink segment (12) is a flat structure, a stop segment (13) is provided between the wire harness segment (11) and the heat sink segment (12), and the heat sink segment (12) has a first side surface (121) and a second side surface facing away from each other; The heat exchanger includes a first heat exchanger (21) and a second heat exchanger (22), wherein the first heat exchanger (21) is disposed on the first side (121) and the second heat exchanger (22) is disposed on the second side.

2. The charging terminal (100) according to claim 1, characterized in that, The first heat exchanger (21) has a first heat exchange channel (210), and the second heat exchanger (22) has a second heat exchange channel (220). The first heat exchange channel (210) and the second heat exchange channel (220) are connected. The first heat exchange channel (210) has a liquid inlet, and the second heat exchange channel (220) has a liquid outlet.

3. The charging terminal (100) according to claim 2, characterized in that, The first heat exchanger (21) includes a first heat exchange body (211) and a first cover plate (212). The first heat exchange body (211) has an opening facing away from the first heat exchange channel (210) of the terminal body (1). The first cover plate (212) is used to cover the opening of the first heat exchange channel (210), and / or, The second heat exchanger (22) includes a second heat exchange body (221) and a second cover plate (222). The second heat exchange body (221) has an opening facing away from the second heat exchange channel (220) of the terminal body (1). The second cover plate (222) is used to cover the opening of the second heat exchange channel (220).

4. The charging terminal (100) according to claim 2, characterized in that, The first heat exchange channel (210) and the second heat exchange channel (220) both extend in a tortuous manner along the first direction (X) and are symmetrically arranged about the heat dissipation plate segment (12). Along the second direction (Y), the liquid inlet and the liquid outlet are both located on the same side of the heat dissipation plate segment (12), wherein the second direction (Y) is the width direction of the heat dissipation plate segment (12), and the first direction (X) and the second direction (Y) are perpendicular to each other.

5. The charging terminal (100) according to claim 2, characterized in that, The heat exchanger also includes a connecting pipe (24) and a sealing structure (25). The heat dissipation plate segment (12) is provided with a through hole (122) at one end near the stop segment (13). The connecting pipe (24) passes through the through hole (122) to connect the first heat exchange channel (210) and the second heat exchange channel (220). The sealing structure (25) is used to seal between the connecting pipe (24) and the first heat exchange channel (210), and between the connecting pipe (24) and the second heat exchange channel (220). The axis of the wire harness segment (11) intersects the axis of the through hole (122).

6. The charging terminal (100) according to claim 1, characterized in that, Along the first direction (X), the heat sink segment (12) has a first segment (123) and a second segment (124). The first segment (123) is located at one end of the second segment (124) near the stop segment (13). The first heat exchanger (21) and the second heat exchanger (22) are located on both sides of the first segment (123). The charging terminal (100) also includes a cable. The end of the cable is fixedly connected to the side of the second segment (124). The cable includes a first cable (31) and a second cable (32). The first cable (31) and the second cable (32) are fixedly connected to the two sides of the second segment (124).

7. The charging terminal (100) according to claim 1, characterized in that, It also includes a heat-conducting layer disposed between the first heat exchanger (21) and the heat dissipation plate segment (12), and / or, the heat-conducting layer disposed between the second heat exchanger (22) and the heat dissipation plate segment (12).

8. The charging terminal (100) according to claim 1, characterized in that, The first heat exchanger (21), the second heat exchanger (22) and the heat sink segment (12) are all provided with corresponding mounting holes (41). The charging terminal (100) also includes a fixing member (42), which is adapted to cooperate with the mounting hole (41) to fix the first heat exchanger (21) and the second heat exchanger (22) on both sides of the heat sink segment (12).

9. The charging terminal (100) according to claim 1, characterized in that, Along the second direction (Y), the width of the heat sink segment (12) is greater than the diameter of the wire harness segment (11), and / or, Along the third direction (Z), the thickness of the heat sink segment (12) is less than the diameter of the wire harness segment (11), and the first direction (X), the second direction (Y) and the third direction (Z) are all perpendicular to each other.

10. A charging device, characterized in that, Includes the charging terminal (100) according to any one of claims 1-9.

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