Charging gun and charging pile

Abstract

The application relates to a charging gun and a charging pile. The charging gun comprises at least one wire and a heat dissipation device. An end of the wire is configured to be connected with a connecting terminal. The heat dissipation device is in heat conduction connection with the wire, and is configured to dissipate heat from the end of the wire. In the related art, the end of the wire is located at the tail of the charging gun. By arranging the heat dissipation device at the end of the wire, the wire at the tail of the charging gun can be dissipated in the charging process.

Description

Technical Field

[0001] This application relates to the field of charging pile technology, and in particular to a charging gun and a charging pile. Background Technology

[0002] In related technologies, the wires inside the charging gun are usually cooled by coolant pipes. However, at the rear of the charging gun, the coolant pipes and wires separate, meaning the coolant pipes cannot effectively cool the wires at the rear. This is especially problematic during high-power charging, where the wires at the rear of the charging gun generate significant heat, and the coolant pipes provide poor cooling, posing a safety hazard. Summary of the Invention

[0003] This application provides a charging gun and a charging station that can effectively dissipate heat from the wires at the tail of the charging gun, thereby enabling the charging gun to use a higher charging current, thus at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a charging gun is provided, comprising:

[0005] At least one wire, the end of which is configured to connect to a connection terminal; and

[0006] A heat dissipation device, thermally connected to a wire, is configured to dissipate heat from the ends of the wire.

[0007] In some embodiments, the heat sink includes a metal component.

[0008] In some embodiments, the metal component has a separation section that is insulated from the conductor and is separate from the conductor.

[0009] In some embodiments, the metal component has a heat-conducting section, and the wire is in contact with the wire along its length to form a heat-conducting section, the heat-conducting section being insulated from the wire.

[0010] In some embodiments, the heat-conducting section is insulated from the wire, or the metal component includes a metal rod or a metal busbar; or the metal component includes a copper busbar or an aluminum busbar.

[0011] In some embodiments, along the length of the conductor, the metal element is electrically connected to the conductor to form a parallel segment, and the parallel segment is covered with an insulating layer.

[0012] In some embodiments, the metal component includes a second conductor connected in parallel with the end of the conductor;

[0013] The second conductor is integrally formed with the end of the conductor; or the second conductor is formed by bending the conductor.

[0014] In some embodiments, the connecting end of the metal component is connected to the wire at a first connection point, the cross-sectional area of ​​the first connection point being greater than the cross-sectional area of ​​the wire, or the cross-sectional area of ​​the first connection point being greater than the sum of the cross-sectional areas of the first connecting ends; or the cross-sectional area of ​​the first connection point being greater than the sum of the cross-sectional areas of the wire and the first connecting end of the metal component.

[0015] In some embodiments, the first connection is formed by crimping.

[0016] In some embodiments, the conductor includes the second conductor.

[0017] In some embodiments, the wire and the second wire are connected to the terminal.

[0018] In some embodiments, the heat sink includes a ceramic component.

[0019] In some embodiments, the heat sink includes a heat exchanger, and the heat exchanger contains a working fluid.

[0020] In some embodiments, the heat exchanger includes at least one of a heat pipe and a heat spreader.

[0021] In some embodiments, the heat exchanger includes a body, a working fluid channel is provided inside the body, the body is a metal part, and the heat exchanger is insulated from the wire.

[0022] In some embodiments, the heat sink includes a phase change material component.

[0023] In some embodiments, the wire includes a first segment and a second segment connected to each other, the first segment being the end of the wire; the charging gun further includes a cooling pipe that contacts the second segment to dissipate heat from the second segment; wherein the cooling pipe is separate from the first segment.

[0024] In some embodiments, the cooling pipe is located inside the second sub-segment or on one side of the second sub-segment.

[0025] In some embodiments, the heat dissipation device is thermally connected to the cooling pipes.

[0026] This application also provides a charging station, including the aforementioned charging gun.

[0027] The charging gun in this embodiment includes a wire and a heat dissipation device. The end of the wire is configured to connect to a connection terminal. The heat dissipation device is thermally connected to the wire and configured to dissipate heat from the end of the wire. The end of the wire is located at the tail of the charging gun in related technologies. By providing a heat dissipation device at the end of the wire, heat can be dissipated from the wire at the tail of the charging gun during charging. Due to the improved heat dissipation performance, the charging gun can handle a larger charging current, making it better suited for high-power charging.

[0028] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0031] Figure 1 This is a schematic diagram of the structure of a charging gun provided in an exemplary embodiment of this application;

[0032] Figure 2 This is a cross-sectional view of the charging cable provided in an exemplary embodiment of this application;

[0033] Figure 3 This is a cross-sectional view of the charging cable provided in an exemplary embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the structure of a charging gun provided in an exemplary embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the overall structure of the charging gun provided in an exemplary embodiment of this application;

[0036] Figure 6 This is a schematic diagram of the overall structure of the charging gun provided in an exemplary embodiment of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the charging pile provided in an exemplary embodiment of this application;

[0038] Figure 8 This is a schematic diagram of the structure of a charging pile provided in an exemplary embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10,000, charging piles;

[0041] 1000, charging gun; 2000, charging gun;

[0042] 1. Connecting terminals; 2. Housing;

[0043] 100. Charging cable; 10. Wire; 10A. First segment; 10B. Second segment; 11. Small wire harness; 12. Filler; 13. Protective sleeve;

[0044] 200. Heat dissipation device; 20. Second wire; 21. First connection; 22. Cooling pipe; 23. Second connection; 24. Insulation layer; 25. Heat exchanger; 26. Metal part. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0046] This application proposes a charging gun. Figures 1 to 8 These are some embodiments of this application.

[0047] Please see Figures 1 to 3 In some embodiments of this application, the charging gun 1000 includes at least one wire 10 and a heat dissipation device 200. The end of the wire 10 is configured to be connected to the connection terminal 1. The heat dissipation device 200 is thermally connected to the wire 10 and is configured to dissipate heat from the end of the wire 10.

[0048] In the technical solution of this application, the end of the wire 10 is the wire located at the tail of the charging gun 1000 in the related art. By providing a heat dissipation device 200 at the end of the wire 10, effective heat dissipation can be achieved at the end of the wire 10 located at the tail of the charging gun 1000 during use. The improved heat dissipation performance allows the charging gun to handle a larger charging current, making it better suited for high-power charging.

[0049] It is understood that, since the charging current of the charging gun 1000 in this application embodiment can be increased, the charging rate of the vehicle when using the charging gun 1000 in this application embodiment for charging can also be effectively improved.

[0050] In some embodiments of this application, please refer to Figures 1 to 3 The conductor includes a first segment 10A and a second segment 10B connected to each other, with the first segment 10A being the end of the conductor. The charging gun also includes a cooling pipe 22, which contacts the second segment 10B to dissipate heat from the second segment 10B. The cooling pipe is separated from the first segment 10A.

[0051] In some embodiments of this application, please refer to Figures 1 to 3 The cooling conduit 22 is located inside the second sub-segment 10B. The conductor 10 can be a bundle of multiple single wires, with the second sub-segment 10B of these single wires arranged around the outer periphery of the cooling conduit 22, i.e., the multiple single wires arranged in a ring, and the cooling conduit located inside the ring. In other embodiments, the cooling conduit may also be located on one side of the second sub-segment 10B.

[0052] In addition, the end of the wire 10 is connected to the connection terminal 1, and then connected to the cable of the charging pile through the connection terminal 1.

[0053] Furthermore, the conductor 10 can be a bundle of multiple individual wires, which can have insulation or be bare wires. In one embodiment, an insulation layer may be provided on the outer periphery of the individual wire.

[0054] In some embodiments of this application, the connection terminal 1 is a terminal portion that is inserted into the charging port of the vehicle; since the end of part of the wire 10 will separate from the coolant pipe in the related art when the wire 10 is connected to the connection terminal 1, that is, the end of the wire 10 in the above embodiments is separated from the coolant pipe, the heat dissipation device 200 can dissipate heat from the end of the wire 10, thereby reducing the heat generation at the end of the wire 10.

[0055] In some embodiments of this application, the charging gun 1000 includes a housing 2 and a charging cable 100 located within the housing 2. The charging cable 100 has multiple wires 10 connected to a power cable, such as a DC positive wire and a DC negative wire. The number of wires 10 is not limited. Adjacent wires 10 are insulated from each other to prevent short circuits.

[0056] In some embodiments of this application, the charging cable 100 includes a protective sleeve 13, and a plurality of wires 10 are located inside the protective sleeve 13, which can provide protection for the plurality of charging cables 100.

[0057] In some embodiments of this application, the charging cable 100 also includes a plurality of small wire harnesses 11 located within the protective sleeve 13; wherein, the small wire harnesses 11 are used to connect various electronic components inside the charging gun 1000, such as control circuits, sensors, etc., to be responsible for transmitting control signals and power, and to ensure that the charging gun 1000 can work normally.

[0058] In some embodiments of this application, the charging cable 100 further includes a filler 12 located within the protective sleeve 13 and around the conductor 10 and the small wire harness 11. The filler 12 serves to fix and protect the conductor 10 and the small wire harness 11, preventing damage to them due to excessive pulling during use, and also improving the overall structural strength and durability of the charging gun 1000. Furthermore, the filler 12 may also have certain insulating properties to prevent the risk of electrical short circuits or leakage within the charging gun 1000.

[0059] In some embodiments of this application, see Figure 4 The heat dissipation device 200 includes a metal component having a separation section 23, which is separated from the wire and insulated from the wire.

[0060] In some embodiments of this application, the heat dissipation device 200 includes a thermally conductive silicone element.

[0061] In some embodiments of this application, see Figure 5 The heat dissipation device 200 includes a metal component, the metal component having a heat-conducting section 24, the metal component and the wire 1010 being in contact in the length direction of the wire 1010 to form the heat-conducting section 24.

[0062] In some embodiments of this application, the metal component includes a metal rod or a metal bar, which is close to the length of the conductor 1010, or the conductor is wound around the metal rod or metal bar. The portion of the metal rod or metal bar that is close to the conductor is a heat-conducting section 24, or the portion of the metal rod or metal bar wound around the conductor is also a heat-conducting section 24. The heat-conducting section 24 is insulated from the conductor 1010. Insulation can be achieved by providing an insulating layer between the heat-conducting section 24 and the conductor 1010 to prevent electrical sparks caused by unreliable contact between the heat-conducting section 24 and the conductor 1010.

[0063] In some embodiments of this application, the metal component includes a copper busbar or an aluminum busbar.

[0064] In some embodiments of this application, the metal component and the conductor are electrically connected along their length to form a parallel segment, and the parallel segment is covered with an insulating layer. The metal component includes a second conductor, which may be a segment of a conductor. The conductor 10 includes a second sub-segment 10B, a first sub-segment 10A, and a second conductor segment connected in sequence. The first sub-segment 10A is the end of the conductor 10, and the conductor is folded back to form the second conductor segment. Both the first sub-segment 10A and the second conductor segment are exposed, and they are connected in parallel to form a parallel segment, which is covered with an insulating layer. Since the insulating layer is only applied to the parallel segment, compared to the case where both the second conductor and the conductor have insulation, the exposed second conductor and the conductor do not require the insulation to be removed when connecting to the terminal, and the operation is simple. Meanwhile, with the total current of the charging cable 100 remaining constant, a second conductor 20 is connected in parallel to the first segment 10A, which reduces the current passing through the first segment 10A. According to Joule's law, the heat generated by current passing through a conductor is proportional to the square of the current. Therefore, the reduction in the current passing through the first segment 10A will reduce the heat generated by the current passing through the first segment 10A, thereby lowering the temperature of the first segment 10A and achieving a good heat dissipation function.

[0065] In some embodiments of this application, see Figure 1-6 The metal component 26 has a connecting end that connects to the wire to form a first connection point, the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the wire. The wire includes a first sub-segment 10A and a second sub-segment 10B connected to each other, the first sub-segment 10A being the end of the wire. The charging gun also includes a cooling pipe 22, which contacts the second sub-segment 10B to dissipate heat from the second sub-segment 10B. The cooling pipe is separated from the first sub-segment 10A. The metal component 26 includes a second wire 20, the connecting end of which includes a first end and a second end. The first sub-segment 10A has a first end and a second end. The first end of the second wire 20 connects to the first end of the first sub-segment 10A to form a first connection point 21, the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the first sub-segment 10A. In other embodiments, the cross-sectional area of ​​the first connection point 21 is larger than the cross-sectional area of ​​the second sub-segment 10B. The second conductor 20 and the conductor are connected in parallel at the first connection 21. The increased current at the first connection 21 leads to increased heat generation. Increasing the cross-sectional area of ​​the first connection 21 improves heat dissipation. In other embodiments, the cross-sectional area of ​​the first connection 21 is greater than the sum of the cross-sectional areas of the first connection ends; or, the cross-sectional area of ​​the first connection 21 is greater than the sum of the cross-sectional areas of the conductor and the first connection end of the metal component 26, thus increasing the cross-sectional area of ​​the first connection 21 improves heat dissipation.

[0066] In some embodiments of this application, the connection end of the second conductor 20 includes a first end and a second end, and the first sub-segment 10A has a first end and a second end. The first end of the second conductor 20 is connected to the first end of the first sub-segment 10A to form a first connection 21, the cross-sectional area of ​​which is larger than that of the first sub-segment 10A. The second end of the second conductor 20 is connected to the second end of the first sub-segment 10A to form a second connection 23. The cross-sectional area of ​​the second connection 23 is larger than that of the first sub-segment 10A. In other embodiments, the cross-sectional area of ​​the second connection 23 is larger than that of the second sub-segment 10B. Increasing the cross-sectional area of ​​the connection can enhance heat dissipation capacity.

[0067] In other embodiments, the cross-sectional areas of the first connection 21 and the second connection 23 are larger than the cross-sectional area of ​​the first sub-segment 10A. The cross-sectional areas of the first connection 21 and the second connection 23 are larger than the cross-sectional area of ​​the second sub-segment 10B. The first connection 21 and the second connection 23 are formed by crimping.

[0068] In some embodiments of this application, the first connection 21 and the second connection 23 are formed by crimping. Connecting the second wire 20 and the wire by crimping is a simple process and results in a strong connection.

[0069] In some embodiments of this application, the conductor includes a second conductor 20, and the conductor and the second conductor 20 are connected to the terminal 1. The connection end of the second conductor 20 includes a first end and a second end, and the first sub-segment 10A has a first end and a second end. The first end of the second conductor 20 is connected to the first end of the first sub-segment 10A to form a first connection 21, the cross-sectional area of ​​the first connection 21 being larger than the cross-sectional area of ​​the first sub-segment 10A, and the first connection 21 is formed by crimping. The second end of the second conductor 20 and the second end of the first sub-segment 10A are connected to the terminal 1. The conductor and the second conductor 20 can be soldered to the same surface of the terminal 1, or one can be soldered to the first surface of the terminal 1 and the other to the second surface of the terminal 1. The second conductor 20 can be a bare second conductor 20 without insulation, or it can be a second conductor 20 with insulation. For a second conductor 20 with insulation, the insulation must be removed at the crimping or soldering point before crimping or soldering. For bare second conductors 20 and conductors, external insulation must be wrapped after crimping and soldering.

[0070] In some embodiments of this application, the heat sink includes a ceramic component, which may be made of a highly thermally conductive material such as a ceramic rod / stalk / plate. The end of the wire is bound, wrapped, or fixed to the ceramic component. The ceramic component includes a first end and a second end, and the first sub-segment 10A has a first end and a second end. The first end of the ceramic component is connected to the first end of the first sub-segment 10A to form a first connection 21. The second end of the ceramic component is connected to the second end of the first sub-segment 10A to form a second connection 23. The ceramic component may be connected to the wire only at the first connection 21 and the second connection 23. The ceramic component may also be connected to the wire along its length to increase the heat dissipation area.

[0071] In some embodiments of this application, the heat dissipation component includes a heat exchanger 25, which contains a working fluid. Through a phase change of the working fluid, the working fluid absorbs heat from the conductor, thereby reducing the conductor temperature. The heat exchanger 25 includes a main body with channels for the working fluid to flow through it. The main body may be made of metal. The heat exchanger 25 is insulated from the conductor; for example, an insulating layer 24 is provided between the heat exchanger 25 and the conductor.

[0072] In some embodiments of this application, the heat exchanger 25 includes a heat pipe or a vapor chamber. One end of the heat pipe is the evaporation end, and the other end is the condensation end. When one end of the heat pipe is heated, the liquid in the capillary channel rapidly vaporizes. The vapor flows to the other end under the power of thermal diffusion and condenses at the cold end, releasing heat. The liquid then flows back to the evaporation end along the porous material by capillary action.

[0073] In some embodiments of this application, the heat sink includes a phase change material component.

[0074] In some embodiments of this application, the heat dissipation device is thermally connected to the cooling pipes, thereby enhancing the heat dissipation capacity of the heat dissipation device. When the heat dissipation device is a metal component, the heat dissipation capacity of the metal component is significantly improved by thermally connecting the metal component to the cooling pipes.

[0075] In some embodiments of this application, the parallel second conductor 20 contacts the first segment 10A along its length; that is, in this embodiment, the entire parallel second conductor 20 is in contact with the first segment 10A, and the cross-sectional area of ​​the wire bundle formed by the parallel second conductor 20 and the first segment 10A is larger than the cross-sectional area of ​​the first segment 10A, thereby reducing the resistance of the part of the parallel second conductor 20 in contact with the first segment 10A, thereby reducing the heat generated when current flows through the first segment 10A.

[0076] The method of parallel connection between the second conductor 20 and the first segment 10A is not limited; it can be welding or connected through other components.

[0077] In some embodiments of this application, the two ends of the parallel second conductor 20 are welded to the first sub-segment 10A, so that the parallel second conductor 20 is connected in parallel with the first sub-segment 10A.

[0078] Please see Figure 1 , Figure 4 and Figure 5 In some embodiments of this application, the heat dissipation device 200 further includes at least one connector 21, and at least one end of the parallel second wire 20 and the first sub-segment 10A are connected through the connector 21; that is, in this embodiment, by providing the connector 21, the parallel second wire 20 and the first sub-segment 10A are connected in parallel, thereby reducing the temperature of the first sub-segment 10A.

[0079] The type of connector 21 is not limited; in one embodiment, connector 21 is a crimp terminal; in another embodiment, connector 21 is a plug.

[0080] Since the parallel second conductor 20 includes two ends, the connection method between the two ends of the parallel second conductor 20 and the first sub-segment 10A can be the same or different.

[0081] Please see Figure 1 In some embodiments of this application, both ends of the parallel second conductor 20 are connected to the first sub-segment 10A via connector 21.

[0082] Please see Figure 4 and Figure 5 In some embodiments of this application, one end of the parallel second conductor 20 is connected to the first sub-segment 10A by a connector 21, and the other end of the parallel second conductor 20 is connected to the first sub-segment 10A.

[0083] Please refer to it again. Figure 4 and Figure 5 In some embodiments of this application, one end of the parallel second conductor 20 is connected to the first sub-segment 10A by a connector 21, and the other end of the parallel second conductor 20 is connected to one end of the first sub-segment 10A. This configuration allows the end of the parallel second conductor 20 to be connected to the end of the first sub-segment 10A, thereby increasing the parallel length between the first sub-segment 10A and the parallel second conductor 20, and thus preventing the local temperature of the first sub-segment 10A from becoming too high.

[0084] Understandably, if only a portion of the first segment 10A is connected in parallel with the second parallel conductor 20, the temperature of the portion of the first segment 10A connected in parallel with the second parallel conductor 20 will decrease, while the temperature of the portion of the first segment 10A not connected in parallel with the second parallel conductor 20 will not decrease, thus limiting the increase in charging current of the charging gun 1000.

[0085] Please see Figure 4In some embodiments of this application, one end of the parallel second conductor 20 is welded to one end of the first sub-segment 10A, and the other end of the parallel second conductor 20 is connected to the first sub-segment 10A through a connector 21, so as to realize the parallel connection of the parallel second conductor 20 and the first sub-segment 10A.

[0086] In some embodiments of this application, one end of the parallel second conductor 20 is connected to one end of the first segment 10A by ultrasonic welding; of course, the welding method of the parallel second conductor 20 and the first segment 10A is not limited to the above embodiments, and any welding method applied to cables is suitable for welding the parallel second conductor 20 and the first segment 10A in this application.

[0087] Please see Figure 5 In some embodiments of this application, the parallel second conductor 20 and the first sub-segment 10A are integrally formed; this configuration makes it so that when the parallel second conductor 20 and the first sub-segment 10A are connected in parallel, only one end of the parallel second conductor 20 needs to be connected to the first sub-segment 10A, which is simple, convenient and highly reliable in manufacturing.

[0088] In some embodiments of this application, the parallel second conductor 20 is formed by bending at least a portion of the conductor 10; in this embodiment, the conductor 10 is bent to form the parallel second conductor 20 and the first sub-segment 10A that are interconnected; wherein, the end of the parallel second conductor 20 away from the first sub-segment 10A is connected or welded to the first sub-segment 10A by a connector 21, and the bent portion of the conductor 10 is welded to the connecting terminal 1 to realize the parallel connection of the first sub-segment 10A and the parallel second conductor 20.

[0089] It should be noted that the method of forming the parallel second wire 20 by bending the wire 10 is simple, convenient and reliable. Since one end of the parallel second wire 20 does not need to be welded or connected with the first sub-segment 10A, the internal space of the charging gun 1000 can be saved. In addition, this setting can also improve the manufacturing efficiency of the charging gun 1000.

[0090] In some embodiments of this application, one end of the parallel second wire 20 is connected to the first sub-segment 10A via a connector 21, and the other end of the parallel second wire 20 is connected to the connection terminal 1; that is, in this embodiment, the parallel connection of the parallel second wire 20 and the first sub-segment 1 is achieved by connecting the parallel second wire 20 to the connection terminal 1.

[0091] In some embodiments of this application, the conductor 10 includes a first segment 10A, which is the end of the conductor 10; the heat dissipation device 200 includes a parallel second conductor 20, which extends along the extension direction of the first segment 10A and at least a portion of the parallel second conductor 20 is connected to the first segment 10A; that is, in this embodiment, the cross-sectional area of ​​the wire bundle formed by the connection and combination of the parallel second conductor 20 and the first segment 10A is increased, thereby reducing the resistance of the portion where the parallel second conductor 20 is connected to the first segment 10A, thereby reducing the heat generated when current flows through the first segment 10A.

[0092] In some embodiments of this application, the entire parallel second conductor 20 is connected to the first segment 10A; this arrangement increases the portion of the first segment 10A connected to the parallel second conductor 20, thereby effectively reducing the heat generated when current flows through the first segment 10A.

[0093] In some embodiments of this application, a portion of the second wire 20 is connected to the first segment 10A, and another portion is connected in parallel with the first segment 10A, which can also effectively reduce the heat generated when current flows through the first segment 10A.

[0094] In some embodiments of this application, the conductor 10 includes a first segment 10A and a second segment 10B connected to each other. The first segment 10A is the end of the conductor 10, and the second segment 10B is used to contact the cooling pipe 22. The cross-sectional area of ​​the first segment 10A is larger than the cross-sectional area of ​​the second segment 10B, that is, the resistance of the first segment 10A is smaller than the resistance of the second segment 10B, so as to reduce the heat generated when current flows through the first segment 10A.

[0095] In some embodiments of this application, both the first sub-segment 10A and the second sub-segment 10B are composed of multiple wire harnesses, and the number of wire harnesses constituting the first sub-segment 10A and the second sub-segment 10B is the same. Therefore, the thickness of some wire harnesses forming the first sub-segment 10A is greater than the thickness of some wire harnesses forming the second sub-segment 10B, thereby making the cross-sectional area of ​​the first sub-segment 10A larger than the cross-sectional area of ​​the second sub-segment 10B, so as to reduce the heat generated when current is passed through the first sub-segment 10A.

[0096] Since the second segment 10B can dissipate heat through the cooling pipe 22, there is no need to set the second segment 10B to have a large cross-sectional area, so as to save costs.

[0097] Please see Figures 1 to 3In some embodiments of this application, the conductor 10 includes a first segment 10A and a second segment 10B connected to each other. The first segment 10A is the end of the conductor 10. The heat dissipation device 200 also includes a cooling pipe 22, which is in contact with the second segment 10B to dissipate heat from the second segment 10B. The cooling pipe 22 is separate from the first segment 10A. That is, in this embodiment, the cooling pipe 22 is used to dissipate heat from the second segment 10B to avoid the second segment 10B from getting too hot during use, thereby limiting the increase of the charging current of the charging gun 1000.

[0098] Since the cooling pipe 22 needs to be connected to the liquid cooling heat dissipation pipe of the charging pile 10000, and the wire 10 needs to be connected to the power cable of the charging pile 10000, the cooling pipe 22 and the wire 10 are partially separated, that is, the cooling pipe 22 is separated from the first sub-segment 10A.

[0099] It is understandable that by setting up cooling pipes 22 and parallel second wires 20, heat is dissipated from the second segment 10B and the first segment 10A of wire 10, so that the charging current of charging gun 1000 can be increased.

[0100] In some embodiments of this application, the wall material of the cooling pipe 22 is an insulating material, and the cooling liquid flows through the cooling pipe 22 to carry away the heat generated by the wire 10 when the vehicle is charging at high power.

[0101] Please see Figures 2 to 3 In some embodiments of this application, the number of cooling pipes 22 is set to four, wherein two of the four cooling pipes 22 are used to introduce coolant and the other two are used to discharge coolant.

[0102] It should be noted that there is no limit to the number of cooling pipes 22; in one embodiment of this application, there are two cooling pipes 22, one of which is used to introduce coolant and the other is used to discharge coolant.

[0103] In another embodiment of this application, three cooling pipes 22 are provided. Alternatively, one of the three cooling pipes 22 may be used to introduce coolant, and the other two may be used to discharge coolant; or two of the three cooling pipes 22 may be used to introduce coolant, and the other may be used to discharge coolant.

[0104] Please see Figure 2 In some embodiments of this application, the cooling pipe 22 is coaxially arranged with the wire 10, that is, the cooling pipe 22 is located inside the second sub-segment 10B to dissipate heat from the second sub-segment 10B.

[0105] Please see Figure 3In some embodiments of this application, the cooling pipe 22 is located on one side of the second sub-segment 10B, thereby dissipating heat from the second sub-segment 10B.

[0106] Please see Figure 7 This application also proposes a charging pile 10000, which includes a charging gun 1000 as described above. Since the charging pile 10000 adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0107] In some embodiments of this application, the charging pile 10000 also includes a heat dissipation component 300, as described above. Since the charging pile 10000 adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought by the technical solutions of the above embodiments, and will not be described in detail here.

[0108] Please see Figure 8 This application also proposes a charging pile 10000, which includes a charging gun 2000 and a heat dissipation component 300. The heat dissipation component 300 is as described above. Since the charging pile 10000 adopts all the technical solutions of the above embodiments, it has at least the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0109] Among them, the charging gun 2000 is the charging gun in the related technology.

[0110] In the description of this application, 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0111] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0112] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0113] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A charging gun, characterized in that, include: A wire, the end of which is configured to connect to a connection terminal; and A heat dissipation device, thermally connected to the wire, is configured to dissipate heat from the ends of the wire.

2. The charging gun according to claim 1, characterized in that, The heat dissipation device includes metal components.

3. The charging gun according to claim 2, characterized in that, The metal component has a separation section that is insulated from the wire and is separate from the wire.

4. The charging gun according to claim 2, characterized in that, The metal component has a heat-conducting section. Along the length of the conductor, the metal part contacts the conductor to form a heat-conducting section.

5. The charging gun according to claim 4, characterized in that, The heat-conducting section is insulated from the wire, or The metal component includes a metal rod or a metal strip, or The metal component includes a copper busbar or an aluminum busbar.

6. The charging gun according to claim 2, characterized in that, Along the length of the conductor, the metal component is electrically connected to the conductor to form a parallel segment, and the parallel segment is covered with an insulating layer.

7. The charging gun according to claim 2 or 4, characterized in that, The metal component includes a second conductor connected in parallel to the end of the conductor; The second conductor is integrally formed with the end of the conductor; or The second conductor is formed by bending the conductor.

8. The charging gun according to any one of claims 2-7, characterized in that, The first connecting end of the metal component is connected to the wire at a first connection point, where the cross-sectional area of ​​the first connection point is larger than the cross-sectional area of ​​the wire; or... The cross-sectional area at the first connection point is greater than the sum of the cross-sectional areas of the first connection ends; or, The cross-sectional area of ​​the first connection is greater than the sum of the cross-sectional area of ​​the wire and the cross-sectional area of ​​the first connection end of the metal component.

9. The charging gun according to claim 8, characterized in that, The first connection is formed by crimping.

10. The charging gun according to claim 9, characterized in that, The conductor includes the second conductor.

11. The charging gun according to claim 9, characterized in that, The wire and the second wire are connected to the terminal.

12. The charging gun according to claim 1, characterized in that, The heat dissipation component includes a ceramic component.

13. The charging gun according to claim 1, characterized in that, The heat dissipation component includes a heat exchanger, and the heat exchanger contains a working fluid.

14. The charging gun according to claim 13, characterized in that, The heat exchanger includes at least one of heat pipes and a heat spreader.

15. The charging gun according to claim 13, characterized in that, The heat exchanger includes a body, in which a working fluid channel is provided. The body is a metal part, and the heat exchanger is insulated from the wire.

16. The charging gun according to claim 1, characterized in that, The heat dissipation component includes a phase change material component.

17. The charging gun according to any one of claims 1 to 16, characterized in that, The conductor includes a first segment and a second segment connected to each other, wherein the first segment is the end of the conductor; The charging gun also includes a cooling pipe that contacts the second sub-section to dissipate heat from the second sub-section. The cooling pipe is separate from the first sub-section.

18. The charging gun according to claim 17, characterized in that, The cooling pipe is located inside the second sub-section or on one side of the second sub-section.

19. The charging gun according to claim 17, characterized in that, The heat dissipation device is thermally connected to the cooling pipes.

20. A charging pile, characterized in that, Includes the charging gun as described in any one of claims 1 to 19.

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