Charging pile

Abstract

The utility model provides a charging pile. Relates to the technical field of charging equipment. The charging pile comprises a charging gun, a first shell, a second shell, a first circuit board located in the first shell and a second circuit board located in the second shell. A part of the plurality of power devices are positioned in the first shell and are fixed on the first circuit board, and the other part of the plurality of power devices are positioned in the second shell and are fixed on the second circuit board; the side, away from the first shell, of the second shell is used for being hung on the bearing piece. The plurality of power devices are electrically connected to form a power conversion circuit, and the charging gun is electrically connected with the output end of the power conversion circuit; the first shell is connected with the second shell, and an air duct is arranged between the first shell and the second shell; the air conditioner further comprises a fan and an air opening, the arrangement direction of the fan and the air opening is perpendicular to the arrangement direction of the first shell and the second shell, the air channel is located between the fan and the air opening, and the fan faces the air channel. The charging pile can meet the heat dissipation requirement of the charging pile with high-density layout.

Description

Technical Field

[0001] This application relates to the field of charging equipment technology, and more particularly to a charging pile. Background Technology

[0002] Power devices are semiconductor devices capable of handling high voltage and high current. They are widely used in charging piles and are a crucial component of them, working in conjunction with other devices to achieve power conversion and control. With the trend towards miniaturization of electronic devices, the size of various electronic components, such as power devices, used in charging piles is decreasing, and the integration level of these components is increasing.

[0003] The higher the integration of a charging pile, the greater its internal heat dissipation requirements. If the heat inside the charging pile cannot be dissipated in time, it will not only burn out the internal electronic components, but may also pose an explosion risk. Therefore, it is crucial to design a heat dissipation system for highly integrated charging piles. Utility Model Content

[0004] This application provides a charging pile. The purpose is to meet the heat dissipation requirements of charging piles with high-density layout.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] On one hand, this application provides a charging pile, which includes a charging gun, a first housing, a second housing, a first circuit board located inside the first housing, and a second circuit board located inside the second housing; the charging pile also includes multiple power devices, a portion of which are located inside the first housing and fixed to the first circuit board, and another portion of which are located inside the second housing and fixed to the second circuit board; the side of the second housing facing away from the first housing is used for mounting to a receiving member; the multiple power devices are electrically connected to form a power conversion circuit, and the charging gun is electrically connected to the output terminal of the power conversion circuit; the first housing and the second housing are connected, and an air duct is provided between the first housing and the second housing; the charging pile also includes a fan and an air outlet, the arrangement direction of the fan and the air outlet is perpendicular to the arrangement direction of the first housing and the second housing, the air duct is located between the fan and the air outlet, and the fan faces the air duct.

[0007] The charging pile of this application, by mounting the second housing on a receiving member with the side facing away from the first housing, allows at least the first housing to be exposed to the air. Therefore, the power devices located within the first housing can dissipate heat to the air through the first housing, and the power devices located within the second housing can dissipate heat to the air through the second housing or through the second housing and the receiving member. By arranging an air duct between the first and second housings, and between a fan and an air outlet, with the fan facing the air duct, the power devices in the first housing on one side of the air duct and the power devices in the second housing on the other side of the air duct can share the central air duct. This simultaneously meets the heat dissipation needs of the power devices in both housings, ensuring that they receive the same or substantially the same heat dissipation effect, thus improving the heat dissipation uniformity of the charging pile. Furthermore, since the first and second housings of this application can conduct heat, and the air duct between the first and second housings can simultaneously dissipate heat from multiple power devices, the charging pile can reserve more space for the placement of other electronic components, thereby facilitating a high-density layout of the charging pile. Thus, this application can meet the heat dissipation requirements of high-density charging pile layouts.

[0008] In some embodiments, portions of the plurality of power devices located on the first circuit board are disposed on the side of the first circuit board facing the air duct; and / or portions of the plurality of power devices located on the second circuit board are disposed on the side of the second circuit board facing the air duct.

[0009] This application arranges the portions of multiple power devices located on the first circuit board and / or the portions of multiple power devices located on the second circuit board on the side of the corresponding circuit board facing the air duct. In this way, the power devices are closer to the air duct relative to their corresponding circuit boards, which is beneficial for the rapid heat dissipation of the power devices.

[0010] In some embodiments, the charging pile further includes multiple fins located within the air duct, and multiple fins are fixed to the wall surface of the first housing in contact with the air duct and / or the wall surface of the second housing in contact with the air duct.

[0011] This application increases the heat dissipation area by fixing multiple fins to at least one wall surface of the housing in contact with the air duct, which facilitates faster heat dissipation. Combined with the accelerated airflow of the fan, it can further improve the heat dissipation efficiency.

[0012] In some embodiments, the wall surface of the first housing in contact with the air duct and / or the wall surface of the second housing in contact with the air duct has a first through hole. The charging pile also includes a metal substrate, an insulating member fixed to one side of the metal substrate, and a plurality of fins fixed to the other side of the metal substrate. At least a portion of the metal substrate is located at the first through hole and fixed to the first housing or the second housing. The insulating member is disposed inside the first housing or the second housing, and the plurality of fins are located inside the air duct.

[0013] This application provides a first through hole on the corresponding housing, and fixes the metal substrate at the first through hole of the housing. The fins are fixed to the side of the metal substrate near the air duct, and the insulating member is fixed between the metal substrate and the power device inside the housing. In this way, the heat of the power device can be conducted to multiple fins through the insulating member and the metal substrate. Under the action of multiple fins and the air duct, the heat dissipation can be accelerated.

[0014] In some embodiments, the arrangement directions of the first and second housings, the arrangement directions of the fan and air vents, and the arrangement directions of the multiple fins are perpendicular to each other.

[0015] This application arranges the first and second housings, the fan and air vents, and the multiple fins in a pairwise perpendicular arrangement. In this way, the arrangement direction of the fan and air vents is perpendicular to the arrangement direction of the multiple fins, and one end of the gap between two adjacent fins can face the fan and the other end can face the air vent. This allows the fan air to be more efficiently introduced into the multiple fins, thereby improving the heat dissipation efficiency.

[0016] In some embodiments, the side of the first housing near the air duct protrudes from the air duct to form a first groove facing into the first housing, and the side of the power device fixed on the first circuit board away from the first circuit board is located in the first groove; or, the side of the second housing near the air duct protrudes from the air duct to form a second groove facing into the second housing, and the side of the power device fixed on the second circuit board away from the second circuit board is located in the second groove.

[0017] This application, through the above-described configuration, can form a first groove and a second groove, placing power devices fixed on the first circuit board within the first groove and power devices fixed on the second circuit board within the second groove. In this way, the first and second grooves can protect multiple power devices, preventing damage caused by collisions during the assembly of the first and second housings.

[0018] In some embodiments, the first groove includes multiple protrusions, and the side of the first housing near the air duct has multiple protrusions for forming multiple first grooves. At least two protrusions are fixed with multiple fins on the side near the second housing, and the multiple fins fixed on different protrusions are flush with one end near the second housing; or, the second groove includes multiple protrusions, and the side of the second housing near the air duct has multiple protrusions for forming multiple second grooves. At least two protrusions are fixed with multiple fins on the side near the first housing, and the multiple fins fixed on different protrusions are flush with one end near the first housing.

[0019] This application fixes multiple fins to at least two protrusions of the first housing near the side of the second housing, or fixes multiple fins to at least two protrusions of the second housing near the side of the first housing. This allows power devices located in at least two first grooves of the first housing and at least two second grooves of the second housing to achieve good heat dissipation through their respective multiple fins, improving the heat dissipation efficiency of the charging pile. By aligning the multiple fins fixed to different protrusions of the first housing or the multiple fins fixed to different protrusions of the second housing, the structure of the first housing and the corresponding fins, as well as the opposing side of the second housing and the corresponding fins, becomes more regular, facilitating assembly and reducing the difficulty of assembling the charging pile.

[0020] In some embodiments, the charging pile further includes a conductive structure, one end of which is located inside a first housing and electrically connected to a first circuit board or at least one power device fixed to the first circuit board; the other end of which is located inside a second housing and electrically connected to a second circuit board or at least one power device fixed to the second circuit board.

[0021] This application, by providing a conductive structure, allows one end of the conductive structure to be located inside the first housing and the other end to be located inside the second housing. This conductive structure enables an electrical connection between a first circuit board or power device located inside the first housing and a second circuit board or power device located inside the second housing. The conductive structure can be a through-wall current-carrying terminal or a wire.

[0022] In some embodiments, the charging pile further includes a third housing, an inlet terminal, and an outlet terminal. The third housing is located on one side of the air duct. The arrangement directions of the third housing and the air duct, the arrangement directions of the first housing and the second housing, and the arrangement directions of the fan and the air outlet are perpendicular to each other, and the first housing and the second housing are both fixedly connected to the third housing. The inlet terminal and the outlet terminal are respectively at least partially fixed inside the third housing. The third housing has a first through hole corresponding to the first housing and a second through hole corresponding to the second housing.

[0023] The charging pile also includes a first conductive structure and a second conductive structure. One end of the first conductive structure is located inside the third housing and is electrically connected to the input terminal. The other end of the first conductive structure extends through the first through hole into the first housing and is electrically connected to the first circuit board or at least one power device fixed on the first circuit board. One end of the second conductive structure is located inside the third housing and is electrically connected to the output terminal. The other end of the second conductive structure extends through the second through hole into the second housing and is electrically connected to the second circuit board or at least one power device fixed on the second circuit board.

[0024] This application, by setting up a third housing and ensuring that at least a portion of the incoming and outgoing terminals are located within the third housing, separates the wiring side from the non-wiring side. This allows users to easily perform wiring operations only at the third housing. Positioning the third housing on one side of the air duct ensures that the components within the third housing are adjacent to the air duct, facilitating heat dissipation. This application utilizes a first conductive structure to achieve electrical connection between components in the first and third housings, and a second conductive structure to achieve electrical connection between components in the second and third housings. The combination of these two conductive structures effectively solves the problem of electrical connection between the three housings when they are separately configured.

[0025] In some embodiments, the charging pile further includes a enclosure, which includes a first side plate and a second side plate. The arrangement directions of the first and second side plates, the arrangement directions of the first and second housings, and the arrangement directions of the third housing and the air duct are all perpendicular to each other. A fan is fixed to the first side plate, and an air outlet is located on the second side plate. The enclosure also includes a third side plate, which is located on the side of the air duct away from the third housing.

[0026] This application constructs a surrounding panel comprising a first side plate, a second side plate, and a third side plate, with the arrangement directions of the first and second side plates, the first and second housings, and the third housing and the air duct all perpendicular to each other. This design allows the air duct to be confined within the space enclosed by the surrounding panel, the third housing, the first housing, and the second housing, ensuring that all airflow from the fan enters the air duct, thus facilitating efficient heat dissipation for the power devices. Furthermore, utilizing the third housing to define the boundary of the air duct also allows for effective utilization of the third housing.

[0027] In some embodiments, the wall surface of the first housing in contact with the air duct has a first connecting plate, the first connecting plate being located at the end of the first housing away from the third housing; the wall surface of the second housing in contact with the air duct has a second connecting plate, the second connecting plate being located at the end of the second housing away from the third housing; the first connecting plate and the second connecting plate are connected to form a third side plate.

[0028] This application provides a first connecting plate on the wall surface of the first housing that contacts the air duct, and a second connecting plate on the wall surface of the second housing that contacts the air duct. The first and second connecting plates are connected to form a third side plate. This method allows the first connecting plate to be integrally manufactured with the first housing, and the second connecting plate to be integrally manufactured with the second housing, reducing the number of parts and simplifying assembly. Attached Figure Description

[0029] Figure 1 This is one of the structural schematic diagrams of a charging pile provided in the embodiments of this application;

[0030] Figure 2 This is a second schematic diagram of the structure of the charging pile provided in the embodiments of this application;

[0031] Figure 3A for Figure 2 A cross-sectional view of a charging pile in China;

[0032] Figure 3B for Figure 3A A magnified view of a section at point A in the middle;

[0033] Figure 4 for Figure 2 Exploded view of the first casing and fins of the charging pile;

[0034] Figure 5 for Figure 2 Exploded view of the second casing and fins of the charging pile;

[0035] Figure 6 This is the third structural schematic diagram of the charging pile provided in the embodiments of this application;

[0036] Figure 7 for Figure 6 Exploded view of a charging pile in China;

[0037] Figure 8 This is the fourth structural schematic diagram of the charging pile provided in the embodiments of this application;

[0038] Figure 9 for Figure 8 One of the cross-sectional views of a charging pile in China;

[0039] Figure 10 for Figure 8 The second cross-sectional view of a charging pile in China;

[0040] Figure 11 for Figure 8 Exploded view of the first shell;

[0041] Figure 12 for Figure 8 Exploded view of the second shell;

[0042] Figure 13 This is the fifth structural schematic diagram of the charging pile provided in the embodiments of this application;

[0043] Figure 14 for Figure 13 An exploded view of a charging station in China.

[0044] Figure label:

[0045] 10 - Charging station; 20 - Charging gun;

[0046] 11-First housing; 111-First part; 112-Second part; 113-First protrusion; 114-First groove; 1141-First through hole; 115-First accommodating cavity; 116-Second through hole; 12-Second housing; 121-Second protrusion; 122-Second accommodating cavity; 123-Second groove; 124-Third through hole; 13-Air duct; 14-Fan; 15-Air outlet; 16-Fin; 171-Conductive structure; 172-First conductive structure; 173-Second conductive structure; 18-Third housing; 181-First through hole; 182-Second through hole; 191-First side plate; 192-Second side plate; 193-Third side plate; 1931-First connecting plate; 1932-Second connecting plate; a-First direction;

[0047] 30 - First circuit board; 40 - Second circuit board; 50 - Power device; 60 - Metal substrate; 70 - Insulating component;

[0048] 200 - Components. Detailed Implementation

[0049] 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] The terms "first," "second," and similar terms used in this article do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "one" or similar terms do not indicate a quantity limitation, but rather indicate the existence of at least one.

[0051] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0052] Figure 1 This is one of the structural schematic diagrams of the charging pile 10 provided in the embodiments of this application. Please refer to... Figure 1 As shown in the figure, this application embodiment provides a charging pile 10, which is used to charge electric vehicles or other devices that need to be charged.

[0053] Please refer to Figure 1 The charging pile 10 includes a charging gun 20 and a power conversion circuit, the output of which is electrically connected to the charging gun 20. The power conversion circuit is a circuit integrating multiple power devices, used to convert input electrical energy into power before outputting it. For example, the power conversion circuit can convert input direct current (DC) into alternating current (AC); or, it can convert input AC into DC; or, it can boost or buck voltage; or, it can perform multiple functions simultaneously.

[0054] Power conversion circuits include power devices, which are crucial for realizing power conversion and control, and possess significant current and voltage withstand capabilities. For example, power devices may be insulated-gate bipolar transistors, metal-oxide-semiconductor field-effect transistors, or diodes, etc. This application does not impose any special restrictions on the specific type of power device. For example, in addition to power devices, power conversion circuits may also include circuit boards and other electronic components, such as capacitors, resistors, and inductors.

[0055] In some embodiments, the power conversion circuit of the charging pile 10 includes an alternating current-to-direct current (AC-DC) circuit. The AC-DC circuit is electrically connected to at least one charging gun 20 and is used to convert alternating current into direct current and output it to the at least one charging gun 20. The at least one charging gun 20 is used to provide direct current to electric vehicles or other electric devices for charging.

[0056] In some embodiments, the power conversion circuit of the charging pile 10 includes an AC-DC circuit and a DC-DC converter. The AC-DC circuit is electrically connected to the input terminal of the DC-DC circuit via a DC bus, and the output terminal of the DC-DC circuit is electrically connected to at least one charging gun 20. The AC-DC circuit converts alternating current (AC) into direct current (DC) and outputs it to the DC bus. The DC-DC circuit performs power conversion on the DC power obtained from the DC bus and outputs it to at least one charging gun 20. The at least one charging gun 20 provides the converted DC power to electric vehicles or other electric equipment for charging them.

[0057] In addition to AC-DC and DC-DC circuits, power conversion circuits in some embodiments also include input filtering circuits and output filtering circuits.

[0058] For example, the charging pile 10 is mounted on the receiving element 200 (e.g., a column or wall), or fixed to the column or wall in other ways. This application does not limit the specific installation method of the charging pile 10. Figure 1 This is just one illustration of the installation method for the charging pile 10.

[0059] When the charging pile 10 is mounted on a column or wall, for example, an mounting bracket (also called a mounting backplate) is installed on the column or wall, and a hook is fixed on one side of the charging pile 10, through which the charging pile 10 is mounted on the mounting bracket.

[0060] For example, an mounting component adapted to the hook of the charging pile 10 is designed, and then the mounting component is fixed to a column or wall, etc., and the charging pile 10 is then hung on the mounting component via the hook. This application does not limit the structural form of the mounting component and the hook, as long as it ensures that the charging pile 10 is stably installed on the column or wall. For example, the hook can be a hook, and the mounting component can be a support plate that can be hooked onto the hook. This application uses a hanging method to fix the charging pile 10 to the column or wall, which facilitates the installation and removal of the charging pile 10, saving time and effort.

[0061] Of course, using a hanging method to fix the charging pile 10 is only one example. In some embodiments, the charging pile 10 can also be directly fixed to the column or wall using screws or other means.

[0062] In addition, fixing the charging pile 10 to a column or wall is only one example of an installation method. In some embodiments, the charging pile 10 may also be configured to be fixed to other components or equipment.

[0063] With the trend of miniaturization in charging piles 10, the device integration of charging piles 10 is becoming increasingly higher, resulting in greater internal heat dissipation requirements. Therefore, heat dissipation design for highly integrated charging piles 10 is crucial. To this end, this application proposes a novel charging pile 10. Figure 2 This is the second structural schematic diagram of the charging pile 10 provided in the embodiments of this application. Figure 3A for Figure 2 Please refer to the cross-sectional view of the charging pile 10. Figure 2 and Figure 3A The charging pile 10 forms an intermediate air duct 13 by arranging a portion of the multiple power devices 50 of the power conversion circuit within a first housing 11 and another portion within a second housing 12, with an air duct 13 provided between the first housing 11 and the second housing 12. This ensures that both the power devices 50 in the first housing 11 and the power devices 50 in the second housing 12 can receive heat dissipation, achieving balanced heat dissipation and meeting the heat dissipation requirements of the high-density layout of the charging pile 10.

[0064] Please refer to the reference. Figure 1 , Figure 2 and Figure 3A The charging station 10 includes a charging gun 20, a first housing 11, a second housing 12, a first circuit board 30 located within the first housing 11, and a second circuit board 40 located within the second housing 12. The charging station 10 also includes multiple power devices 50. A portion of the power devices 50 is located within the first housing 11 and fixed to the first circuit board 30, while another portion of the power devices 50 is located within the second housing 12 and fixed to the second circuit board 40. The side of the second housing 12 facing away from the first housing 11 is used for mounting to a receiving member 200. The multiple power devices 50 are electrically connected to form a power conversion circuit, and the charging gun is electrically connected to the output terminal of the power conversion circuit.

[0065] The charging pile 10 of this application includes a first housing 11, a second housing 12, a first circuit board 30, a second circuit board 40, and a plurality of power devices 50. The first housing 11 has an inner cavity, and the first circuit board 30 and a portion of the power devices 50 are disposed within the inner cavity of the first housing 11; the second housing 12 has an inner cavity, and the second circuit board 40 and another portion of the power devices 50 are disposed within the inner cavity of the second housing 12.

[0066] This application employs two housings (i.e., a first housing 11 and a second housing 12). This allows for the separate placement of corresponding circuit boards and some power devices 50 within each housing. On one hand, this improves the integration and power density of the charging pile 10. On the other hand, by using two housings, during the assembly of the charging pile 10, the first housing 11 and its internal components, as well as the second housing 12 and its internal components, are assembled separately. Then, the first housing 11 and the second housing 12 are connected, ensuring electrical connection between the components within the first housing 11 and the components within the second housing 12. This method enables modularity of the charging pile 10, facilitating assembly and subsequent maintenance.

[0067] Furthermore, the charging pile 10 of this application, by mounting the second housing 12 on the receiving member 200 with the side facing away from the first housing 11 exposed to the air, allows at least the first housing 11 to be exposed. Therefore, the power devices 50 located within the first housing 11 can dissipate heat to the air through the first housing 11, and the power devices 50 located within the second housing 12 can dissipate heat to the air through the second housing 12 or through the second housing 12 and the receiving member 200. This mounted charging pile 10, combined with the arrangement of the first housing 11 and the second housing 12, increases the contact area between the charging pile 10 and the air, improving heat dissipation efficiency.

[0068] In this embodiment, the first housing 11 and the second housing 12 are connected, and an air duct 13 is provided between the first housing 11 and the second housing 12.

[0069] For example, the connection between the first housing 11 and the second housing 12 can be a direct connection or an indirect connection.

[0070] This application arranges the air duct 13 between the first housing 11 and the second housing 12. In this way, the air passing through the air duct 13 can dissipate heat on the power device 50 and the first circuit board 30 inside the first housing 11, and on the other hand, it can dissipate heat on the power device 50 and the second circuit board 40 inside the second housing 12.

[0071] This application, by placing the air duct 13 between the first housing 11 and the second housing 12, allows the power devices 50 located in the first housing 11 on one side of the air duct 13 and the power devices 50 located in the second housing 12 on the other side of the air duct 13 to share the intermediate air duct 13. Furthermore, the power devices 50 in the first housing 11 and the second housing 12 can achieve the same or substantially the same heat dissipation effect, thus improving the heat dissipation uniformity of the charging pile 10. In addition, the first housing 11 and the second housing 12 of the charging pile 10 can conduct heat, and the air duct 13, located between the first housing 11 and the second housing 12, can also simultaneously dissipate heat from multiple power devices 50. Therefore, the charging pile 10 can reserve more space for the layout of electronic components, which is beneficial for the high-density layout of the charging pile 10.

[0072] For example, the charging pile 10 also includes a fan 14 and an air vent 15. The arrangement direction of the fan 14 and the air vent 15 is perpendicular to the arrangement direction of the first housing 11 and the second housing 12. The air duct 13 is located between the fan 14 and the air vent 15, and the fan 14 faces the air duct 13.

[0073] By setting up fan 14 and directing fan 14 toward air duct 13, fan 14 can blow air toward air duct 13, thereby improving the heat dissipation efficiency of charging pile 10.

[0074] In this application, the air duct 13 is disposed between the fan 14 and the air outlet 15, and the fan 14 is oriented towards the air duct 13. The arrangement direction of the fan 14 and the air outlet 15 is perpendicular to the arrangement direction of the first housing 11 and the second housing 12, which enables the fan 14 to blow directly into the air duct 13, thereby improving the heat dissipation balance of the power devices 50 in the first housing 11 and the power devices 50 in the second housing 12.

[0075] The number of fans 14 can be one or more. When there are multiple fans 14, for example, the arrangement direction of the multiple fans 14, the arrangement direction of the fans 14 and the air vents 15, and the arrangement direction of the first housing 11 and the second housing 12 are all perpendicular to each other. That is, the arrangement direction of the multiple fans 14 is perpendicular to the arrangement direction of the fans 14 and the air vents 15, and the arrangement direction of the multiple fans 14 is perpendicular to the arrangement direction of the first housing 11 and the second housing 12.

[0076] The shape and number of air vents 15 can be set as needed, and this application does not impose specific limitations. For example, the cross-section of the air vent 15 may be square, circular, triangular, or an irregular shape. For example, the air vent 15 may include multiple vents arranged in an array.

[0077] In some embodiments, portions of the plurality of power devices 50 located on the first circuit board 30 are disposed on the side of the first circuit board 30 facing the air duct 13.

[0078] In other words, the power device 50 fixedly connected to the first circuit board 30 is located on the side of the first circuit board 30 facing the air duct 13. In this way, the power device 50 fixedly connected to the first circuit board 30 is closer to the air duct 13 relative to the first circuit board 30, which is beneficial to the rapid heat dissipation of this part of the power device 50.

[0079] For example, the side of the first housing 11 closest to the air duct 13 protrudes from the air duct 13 to form a first groove 114 facing into the first housing 11, and the side of the power device 50 fixed to the first circuit board 30 facing away from the first circuit board 30 is located in the first groove 114.

[0080] For ease of understanding and explanation, when the side of the first housing 11 near the air duct 13 protrudes from the air duct 13 to form a first groove 114 facing into the first housing 11, the part of the side of the first housing 11 near the air duct 13 that protrudes towards the air duct 13 is called the first protrusion 113.

[0081] At this point, the side of the first housing 11 closest to the air duct 13 protrudes from the air duct 13 to form a first groove 114 facing into the first housing 11. The side of the power device 50 fixed on the first circuit board 30 away from the first circuit board 30 is located within the first groove 114. In other words, the first housing 11 has a first receiving cavity 115, and the first circuit board 30 is located within the first receiving cavity 115; the side of the first housing 11 closest to the air duct 13 has a first protrusion 113, the first protrusion 113 has a first groove 114, the first groove 114 communicates with the first receiving cavity 115, and the side of the power device 50 fixed on the first circuit board 30 away from the first circuit board 30 is located within the first groove 114.

[0082] For example, the first groove 114 includes multiple protrusions, and the side of the first housing 11 near the air duct 13 has multiple protrusions for forming the multiple first grooves 114 (i.e., multiple first protrusions 113). The height of the first groove 114 corresponding to the multiple first protrusions 113 is determined according to the height of the power device 50 fixedly connected to the first circuit board 30. For example, assuming that the power device 50 fixedly connected to the first circuit board 30 includes multiple power devices 50, if the multiple power devices 50 have multiple heights, then the first grooves 114 of the multiple first protrusions 113 also have multiple heights, that is, the height of the power device 50 corresponding to the first groove 114 of the first protrusion 113 is slightly lower than the depth of the first groove 114. In short, the shape of the side of the first housing 11 facing the air duct 13 is adapted to the shape of the power device 50 fixedly connected to the first circuit board 30.

[0083] For example, a first groove 114 within the first protrusion 113 extends through the first protrusion 113 along the arrangement direction of the first housing 11 and the second housing 12. Thus, one side of the power device 50 fixedly connected to the first circuit board 30 protrudes from the first groove 114 of the first protrusion 113 and faces the air duct 13. This facilitates rapid heat dissipation of the power device 50 fixedly connected to the first circuit board 30.

[0084] In this application, "exposed" means that it can be displayed or shown. For example, "the first component is exposed from within the second component" means that the first component can be seen from one side of the second component. Similarly, "one side of the power device 50 fixedly connected to the first circuit board 30 is exposed from the first groove 114 of the first protrusion 113" means that one side of the power device 50 fixedly connected to the first circuit board 30 is displayed from the first groove 114 of the first protrusion 113; that is, one side of the power device 50 on the first circuit board 30 can be seen from the first groove 114 of the first protrusion 113. Other instances involving "exposed" can be explained in the same way as described here. To avoid redundancy, this application will not elaborate further elsewhere.

[0085] In some embodiments, a portion of the plurality of power devices 50 located on the second circuit board 40 is disposed on the side of the second circuit board 40 facing the air duct 13.

[0086] That is, the power device 50 fixedly connected to the second circuit board 40 is located on the side of the second circuit board 40 facing the air duct 13. In this way, the power device 50 fixedly connected to the second circuit board 40 is closer to the air duct 13 relative to the second circuit board 40, which is beneficial to the rapid heat dissipation of this part of the power device 50.

[0087] Similarly, for example, the side of the second housing 12 closest to the air duct 13 protrudes from the air duct 13 to form a second groove 123 facing into the second housing 12, and the side of the power device fixed on the second circuit board 40 away from the second circuit board 40 is located in the second groove 123.

[0088] For ease of understanding and explanation, when the side of the second housing 12 near the air duct 13 protrudes from the air duct 13 to form a second groove 123 facing into the second housing 12, the portion of the side of the second housing 12 near the air duct 13 that protrudes towards the air duct 13 is called the second protrusion 121.

[0089] At this time, the side of the second housing 12 near the air duct 13 protrudes from the air duct 13 to form a second groove 123 facing into the second housing 12. The side of the power device fixed on the second circuit board 40 away from the second circuit board 40 is located in the second groove 123. In other words, the second housing 12 has a second receiving cavity 122, the second circuit board 40 is located in the second receiving cavity 122, the side of the second housing 12 near the air duct 13 has a plurality of second protrusions 121, the second protrusions 121 have second grooves 123, the second grooves 123 communicate with the second receiving cavity 122, and the side of the power device 50 fixed on the second circuit board 40 away from the second circuit board 40 is located in the second groove 123.

[0090] For example, the second groove 123 includes multiple sections, and the side of the second housing 12 near the air duct 13 has multiple protrusions for forming the multiple second grooves 123 (i.e., multiple second protrusions 121). The height of the second groove 123 corresponding to the multiple second protrusions 121 is determined according to the height of the power device 50 fixedly connected to the second circuit board 40. For example, assuming that the power device 50 fixedly connected to the second circuit board 40 includes multiple sections, if the multiple power devices 50 have multiple heights, then the second grooves 123 of the multiple second protrusions 121 also have multiple heights. For example, the height of the power device 50 corresponding to the second groove 123 of the second protrusion 121 is slightly lower than the depth of the second groove 123. In short, the shape of the side of the second housing 12 facing the air duct 13 can be adapted to the shape of the power device 50 fixedly connected to the second circuit board 40.

[0091] For example, the second groove 123 within the second protrusion 121 extends through the second protrusion 121 along the arrangement direction of the first housing 11 and the second housing 12. This allows one side of the power device 50, fixedly connected to the second circuit board 40, to be exposed from the second groove 123 of the second protrusion 121 and facing the air duct 13. This facilitates rapid heat dissipation of the power device 50 fixedly connected to the second circuit board 40.

[0092] This application places the first circuit board 30 within the first accommodating cavity 115, and the power devices 50 fixed to the first circuit board 30 within the first groove 114 of the first protrusion 113; the second circuit board 40 is placed within the second accommodating cavity 122, and the power devices 50 fixed to the second circuit board 40 are placed within the second groove 123 of the second protrusion 121. In this way, the multiple first protrusions 113 and multiple second protrusions 121 can protect the multiple power devices 50, preventing damage caused by collisions during the assembly of the first housing 11 and the second housing 12.

[0093] Figure 3B for Figure 3A Please refer to the enlarged view of part A in the middle. Figure 2 , Figure 3A and Figure 3B In one embodiment, the charging pile 10 further includes a plurality of fins 16 located within the air duct 13, and the wall surface of the first housing 11 in contact with the air duct 13 and / or the wall surface of the second housing 12 in contact with the air duct 13 are fixed with a plurality of fins 16.

[0094] By fixing multiple fins 16 to the wall of the housing near the air duct 13, the heat dissipation surface area can be increased and the range of heat conduction can be expanded, thereby enabling the heat of the power device 50 to be dissipated more quickly.

[0095] When the charging station 10 is operating, the heat generated by the power device 50 can be transferred to the fins 16 through thermal conduction. The increased heat dissipation area of ​​the fins 16 allows the heat to dissipate more quickly. At the same time, the fan 14 accelerates airflow, further aiding in heat dissipation.

[0096] In another embodiment, please refer to Figure 3A The wall surface of the first housing 11 that contacts the air duct 13 and / or the wall surface of the second housing 12 that contacts the air duct 13 has a first through hole 1141. That is, the first housing 11 has a first through hole 1141, or the second housing 12 has a first through hole 1141, or both the first housing 11 and the second housing 12 have a first through hole 1141.

[0097] Specifically, when the first groove 114 in the first protrusion 113 penetrates the first protrusion 113 along the arrangement direction of the first housing 11 and the second housing 12, the first through hole 1141 on the wall surface of the first housing 11 that contacts the air duct 13 is considered to be part of the first groove 114; when the second groove 123 in the second protrusion 121 penetrates the second protrusion 121 along the arrangement direction of the first housing 11 and the second housing 12, the first through hole 1141 on the wall surface of the second housing 12 that contacts the air duct 13 is considered to be part of the second groove 123.

[0098] The charging pile 10 also includes a metal substrate 60, an insulating member 70 fixed to one side of the metal substrate 60, and a plurality of fins 16 fixed to the other side of the metal substrate 60. At least a portion of the metal substrate 60 is located at the first through hole 1141 and is fixed to the first housing 11 or the second housing 12. The insulating member 70 is disposed in the first housing 11 or the second housing 12. The plurality of fins 16 are located in the air duct 13.

[0099] That is, when the wall surface of the first housing 11 in contact with the air duct 13 has a first through hole 1141, at least a portion of the metal substrate 60 is located at the first through hole 1141 of the first housing 11 and is fixed to the first housing 11, the insulating member 70 is disposed in the first housing 11, and a plurality of fins 16 are located in the air duct 13.

[0100] When the wall surface of the second housing 12 in contact with the air duct 13 has a first through hole 1141, at least a portion of the metal substrate 60 is located at the first through hole 1141 of the second housing 12 and is fixed to the second housing 12, the insulating member 70 is disposed in the second housing 12, and a plurality of fins 16 are located in the air duct 13.

[0101] This application provides a first through hole 1141 on the first housing 11 and / or the second housing 12, and fixes the metal substrate 60 at the first through hole 1141 of the first housing 11 and / or the second housing 12. The fins 16 are fixed to the side of the metal substrate 60 near the air duct 13, and the insulating member 70 is fixed between the metal substrate 60 and the power device 50. In this way, the heat of the power device 50 in the first housing 11 and / or the power device 50 in the second housing 12 can be conducted to the multiple fins 16 through the insulating member 70 and the metal substrate 60. Under the action of the multiple fins 16 and the air duct 13, the heat dissipation can be accelerated.

[0102] For example, in the first case, the side of the metal substrate 60 away from the air duct 13 is fixed to the side of the corresponding housing near the air duct 13.

[0103] In the second case, based on fixing the side of the metal substrate 60 away from the air duct 13 to the side of the corresponding housing near the air duct 13, a protrusion is provided on the side of the metal substrate 60 away from the air duct 13, and the protrusion extends into the corresponding housing (this case can also be considered as a part of the metal substrate 60 being located at the first through hole 1141 and fixed to the corresponding housing, and another part extending into the corresponding housing).

[0104] When the circuit board and the power device 50 fixed on the circuit board are installed in the corresponding housing, if the distance between the power device 50 and the corresponding insulating part 70 is just enough to fix the two, the first case mentioned above applies; if the position of the power device 50 and the corresponding insulating part 70 is insufficient to achieve a fixed connection, the second case mentioned above applies.

[0105] In some embodiments, the arrangement directions of the first housing 11 and the second housing 12, the arrangement directions of the fan 14 and the air vent 15, and the arrangement directions of the plurality of fins 16 are all perpendicular to each other. In this way, one end of the gap between two adjacent fins 16 can face the fan 14, and the other end can face the air vent 15, which allows the air from the fan 14 to be more efficiently introduced into the plurality of fins 16, thereby improving the heat dissipation efficiency.

[0106] In some examples, the multiple fins 16 comprise multiple groups, wherein each group of fins includes multiple fins 16 arranged along a first direction a. The arrangement direction of the multiple groups of fins is parallel to the arrangement direction of the fan 14 and the air outlet 15. For ease of understanding, ... Figure 2Taking the orientation shown as an example, multiple fins 16 form a fin group, and the charging pile 10 includes multiple fin groups, which are arranged horizontally. Figure 2 The arrangement of the central fan 14 and the air outlet 15 is such that multiple fins 16 in each fin group are arranged along the front-to-back direction. Figure 2 The first direction a) arrangement.

[0107] In order to ensure that the fin groups correspond to the power devices 50 that need to be cooled, targeted cooling is performed on multiple power devices 50. The spacing between the multiple fin groups is different, and the spacing between any two fin groups is determined according to the distance between the corresponding power devices 50.

[0108] In the multiple fin groups, the gap between two adjacent fins 16 in one fin group can be equal to or unequal to the gap between two adjacent fins 16 in other fin groups. In short, the fin arrangement density of different fin groups can be the same or different. Any feasible method can be selected according to the specific needs; for example, for ease of fabrication, multiple fin groups can be selected with the same fin arrangement density.

[0109] Please refer to Figure 2 In the same fin group, multiple fins 16 are arranged along the first direction a, and there is a gap between two adjacent fins 16 arranged along the first direction a. The arrangement direction of the fan 14 and the air outlet 15 is perpendicular to the first direction a, and the arrangement direction of the first housing 11 and the second housing 12 is perpendicular to the first direction a.

[0110] This application provides a gap between two adjacent fins 16 arranged along the first direction a, allowing the airflow from the fan 14 to enter the gap, thereby accelerating the heat dissipation of the multiple fins 16 and improving the heat dissipation efficiency of the power device 50.

[0111] The arrangement direction of the fan 14 and the air vent 15 is perpendicular to the first direction a. Thus, the arrangement direction of the fan 14 and the air vent 15 is perpendicular to the arrangement direction of the multiple fins 16. In this way, one end of the gap between two adjacent fins 16 faces the fan 14 and the other end faces the air vent 15, which enables the air from the fan 14 to be more efficiently introduced into the gap between the multiple fins 16, thereby improving the heat dissipation efficiency.

[0112] Furthermore, within the same fin group, the gap between two adjacent fins 16 can be the same or different from the gap between two adjacent fins 16. In short, multiple fins 16 within the same fin group can be arranged at equal or unequal intervals. Any feasible method can be selected based on the specific needs; for example, for ease of fabrication, the fins 16 within the same fin group can be arranged at equal intervals.

[0113] Please refer to the reference. Figure 2 and Figure 3AIn some embodiments, at least one of the first housing 11 and the second housing 12 includes a first portion 111 and a second portion 112 connected to the first portion 111, with the first circuit board 30 or the second circuit board 40 located within the space enclosed by the first portion 111 and the second portion 112. The second portion 112 is located on the side of the first portion 111 facing the air duct 13, and a plurality of fins 16 are fixed to the second portion 112.

[0114] By setting the housing as a first part 111 and a second part 112 connected to the first part 111, and making the second part 112 located on the side of the first part 111 facing the air duct 13, the first housing 11 and the second housing 12 are arranged opposite to each other, and the first part 111 and the second part 112 are arranged opposite to each other, which can reduce the size of the charging pile 10 in the arrangement direction of the fan 14 and the air vent 15, making the structure of the charging pile 10 more compact.

[0115] The arrangement direction of the first part 111 and the second part 112 is parallel to the arrangement direction of the first shell 11 and the second shell 12.

[0116] Figure 4 for Figure 2 Please refer to the exploded view of the first shell 11 and fins 16 of the charging pile 10. Figure 4 The first housing 11 includes a first part 111 and a second part 112. Figure 5 for Figure 2 Please refer to the exploded view of the second shell 12 and fins 16 of the charging pile 10. Figure 5 The second housing 12 also includes a first part 111 and a second part 112.

[0117] For example, the first part 111 and the second part 112 are fixedly connected by screws, or by setting mutually compatible snap-fit ​​structures to achieve the fastening. The appropriate fixing method can be selected according to actual needs.

[0118] Additionally, for example, the first part 111 and the second part 112 are sealed together, so that the corresponding circuit board and power device 50 located within the area enclosed by the first part 111 and the second part 112 can be protected from moisture contamination, thereby improving the operational reliability of the charging pile 10. For example, a sealing strip or sealing ring may be provided at the connection between the first part 111 and the second part 112.

[0119] Furthermore, in one embodiment, the fin 16 and the corresponding housing are independent components, fixed together by welding, gluing, or screw connection, such as... Figure 4 and Figure 5As shown. When the fin 16 and the corresponding housing are independent components, the fin 16 and the housing are discrete devices. For example, the housing is formed by stretching sheet metal, and the fin 16 can be made of extruded aluminum profile or sheet metal. In this way, a single fin 16 can be made very thin, achieving a high-density distribution of the fins 16 within a limited area, resulting in better heat dissipation, reduced weight of the charging pile 10, and lower cost.

[0120] Figure 8 This is the fourth structural schematic diagram of the charging pile 10 provided in the embodiments of this application. Figure 11 for Figure 8 Exploded view of the first shell 11 in the middle. Figure 12 for Figure 8 Exploded view of the second shell 12, please refer to Figure 11 and Figure 12 In another embodiment, the fin 16 and the corresponding shell are integrally formed. That is, the fin 16 and the corresponding shell are a single structure, which allows for die casting, making the fin 16 and the corresponding shell a single die-cast part. This saves on the fixing process of the shell and the fin 16, reduces the number of process steps in the manufacturing process, and is beneficial for industrial mass production.

[0121] Figure 9 for Figure 8 One of the cross-sectional views of the charging pile 10 in the middle. Figure 9 From a cross-sectional perspective, the cut surface is located between two adjacent fins 16 ( Figure 9 (Not shown) in the gap between. Figure 10 for Figure 8 The second cross-sectional view of the charging pile 10, in Figure 10 The cut surface is located at fin 16 in the cross-sectional view shown.

[0122] When the first groove 114 includes multiple ones, and the first housing 11 near the air duct 13 has multiple protrusions (i.e., first protrusions 113) for forming multiple first grooves 114, in some examples, at least two first protrusions 113 near the second housing 12 are fixed with multiple fins 16, and the multiple fins 16 fixed on different first protrusions 113 are flush with one end near the second housing 12.

[0123] In short, when the first housing 11 has multiple first protrusions 113, multiple fins 16 are fixed on at least two of the first protrusions 113. For example, multiple fins 16 are fixed on some of the first protrusions 113; or, multiple fins 16 are fixed on all of the first protrusions 113. Among them, the ends of the multiple fins 16 fixed on different first protrusions 113 that are close to the second housing 12 are flush.

[0124] When the second groove 123 includes multiple, and the second housing 12 near the air duct 13 has multiple protrusions (i.e., second protrusions 121) for forming multiple second grooves 123, in some examples, at least two second protrusions 121 near the first housing 11 are fixed with multiple fins 16, and the multiple fins 16 fixed on different second protrusions 121 are flush with one end near the first housing 11.

[0125] In short, when the second housing 12 has multiple second protrusions 121, multiple fins 16 are fixed on at least two of the second protrusions 121. For example, multiple fins 16 are fixed on some of the second protrusions 121; or, multiple fins 16 are fixed on all of the second protrusions 121. Among them, the ends of the multiple fins 16 fixed on different second protrusions 121 that are close to the first housing 11 are flush.

[0126] This application fixes multiple fins on the side of at least two first protrusions 113 near the second housing 12, and fixes multiple fins 16 on the side of at least two second protrusions 121 near the first housing 11. This allows the power devices 50 located in the first grooves 114 of the at least two first protrusions 113 and the power devices 50 located in the second grooves 123 of the at least two second protrusions 121 to achieve good heat dissipation through their respective multiple fins 16, thus improving the heat dissipation efficiency of the charging pile 10. By aligning the multiple fins 16 fixed on different first protrusions 112 and the multiple fins 16 fixed on different second protrusions 121, the structure of the first housing 11 and the fins 16 corresponding to the first housing 11, as well as the second housing 12 and the side facing the fins 16 corresponding to the second housing 12, becomes more regular, facilitating assembly and reducing the difficulty of assembling the charging pile 10.

[0127] In some embodiments, please refer to Figure 2 and Figure 3A The charging pile 10 also includes a conductive structure 171, one end of which is located inside the first housing 11 and electrically connected to the first circuit board 30 or at least one power device 50 fixed to the first circuit board 30. The other end of the conductive structure 171 is located inside the second housing 12 and electrically connected to the second circuit board 40 or at least one power device 50 fixed to the second circuit board 40.

[0128] By providing a conductive structure 171, with one end of the conductive structure 171 located inside the first housing 11 and electrically connected to the first circuit board 30 or at least one power device 50 fixed on the first circuit board 30, and the other end of the conductive structure 171 located inside the second housing 12 and electrically connected to the second circuit board 40 or at least one power device 50 fixed on the second circuit board 40, the conductive structure 171 can realize the electrical connection between the devices inside the first housing 11 and the devices inside the second housing 12. Therefore, even if the first housing 11 and the second housing 12 are separately set up and relatively fixed together, the electrical connection between the devices located inside the first housing 11 and the devices located inside the second housing 12 will not be affected.

[0129] The conductive structure 171 can be a through-wall current-carrying terminal (or a through-wall type terminal block) or a wire. That is, the electrical connection between the devices in the first housing 11 and the second housing 12 can be achieved by using a through-wall current-carrying terminal or by using a wire.

[0130] For example, through holes are provided on the wall surface of the first housing 11 facing the second housing 12 and the wall surface of the second housing 12 facing the first housing 11, respectively. The through holes of the first housing 11 and the second housing 12 are arranged opposite to each other and connected by the air duct 13. One end of the conductive structure 171 passes through the through hole of the first housing 11 and extends into the first housing 11, and the other end of the conductive structure 171 passes through the through hole of the second housing 12 and extends into the second housing 12.

[0131] Figure 6 This is the third structural schematic diagram of the charging pile 10 provided in the embodiments of this application. Figure 7 for Figure 6 The exploded view of the charging pile 10 is shown in some embodiments; please refer to the references. Figure 2 , Figure 3A , Figure 6 and Figure 7 The charging pile 10 also includes a third housing 18, an inlet terminal, and an outlet terminal. The third housing 18 is located on one side of the air duct 13. The arrangement directions of the third housing 18 and the air duct 13, the arrangement directions of the first housing 11 and the second housing 12, and the arrangement directions of the fan 14 and the air outlet 15 are all perpendicular to each other, and the first housing 11 and the second housing 12 are both fixedly connected to the third housing 18. The inlet terminal and the outlet terminal are at least partially fixed inside the third housing 18. The third housing 18 has a first through hole 181 corresponding to the first housing 11 and a second through hole 182 corresponding to the second housing 12.

[0132] The charging pile 10 also includes a first conductive structure 172 and a second conductive structure 173. One end of the first conductive structure 172 is located inside the third housing 18 and is electrically connected to the incoming terminal. The other end of the first conductive structure 172 extends through the first through hole 181 into the first housing 11 and is electrically connected to the first circuit board 30 or at least one power device 50 fixed on the first circuit board 30. One end of the second conductive structure 173 is located inside the third housing 18 and is electrically connected to the outgoing terminal. The other end of the second conductive structure 173 extends through the second through hole 182 into the second housing 12 and is electrically connected to the second circuit board 40 or at least one power device 50 fixed on the second circuit board 40.

[0133] That is, in addition to the first housing 11 and the second housing 12, the charging pile 10 of this application also includes a third housing 18 located on one side of the air duct 13. At least a portion of the inlet and outlet terminals of the charging pile 10 are disposed within the third housing 18. In this way, the wiring side and the non-wiring side can be separated, and users only need to operate at the third housing 18 when wiring is required, which is convenient for users. By placing the third housing 18 on one side of the air duct 13, the components inside the third housing 18 are adjacent to the air duct 13, which is beneficial for the heat dissipation of the components inside the third housing 18.

[0134] The electrical connection between the first conductive structure 172 and the input terminal can be a direct electrical connection or an indirect electrical connection through other devices, which can be determined according to the circuit design of the charging pile 10, and this application does not impose any restrictions. Similarly, the electrical connection between the second conductive structure 173 and the output terminal can be a direct electrical connection or an indirect electrical connection through other devices, which can be determined according to the circuit design of the charging pile 10, and this application does not impose any restrictions.

[0135] For example, the first conductive structure 172 and the second conductive structure 173 can be through-wall current-carrying terminals (or through-wall type terminals) or wires. That is, through-wall current-carrying terminals can be used to achieve electrical connection between the devices in the first housing 11 and the devices in the third housing 18, or wires can be used to achieve electrical connection between the devices in the first housing 11 and the devices in the third housing 18.

[0136] The first conductive structure 172 and the second conductive structure 173 can be of the same or different types. For example, they can both be through-wall current-carrying terminals, or both can be wires, or one of them can be a through-wall current-carrying terminal and the other can be a wire.

[0137] Additionally, please refer to the following: Figure 8 and Figure 14As shown, the wall of the first housing 11 facing the third housing 18 is provided with a second through hole 116 communicating with the first through hole 181, and the wall of the second housing 12 facing the third housing 18 is provided with a third through hole 124 communicating with the second through hole 182.

[0138] In this way, one end of the first conductive structure 172 passes through the second through hole 116 of the first housing 11 and extends into the first housing 11, and the other end of the first conductive structure 172 passes through the first through hole 181 of the third housing 18 and extends into the third housing 18, thereby realizing the electrical connection between the device in the first housing 11 and the device in the third housing 18.

[0139] One end of the second conductive structure 173 passes through the third through hole 124 of the second housing 12 and extends into the second housing 12. The other end of the second conductive structure 173 passes through the second through hole 182 of the third housing 18 and extends into the third housing 18, thereby realizing the electrical connection between the device in the second housing 12 and the device in the third housing 18.

[0140] This application solves the problem of electrical connection between three separate housings by setting up the first conductive structure 172 and the second conductive structure 173.

[0141] For example, the charging pile 10 also includes a first waterproof connector and a second waterproof connector. The first waterproof connector is connected to the inlet terminal, and the second waterproof connector is connected to the outlet terminal. The first and second waterproof connectors are respectively located outside the third housing 18. In this way, when wiring, the cable is inserted into the first and second waterproof connectors outside the third housing 18 and electrically connected to the corresponding terminal (i.e., inlet or outlet terminal) of the waterproof connector. Then, by tightening or locking the waterproof connector, a stable electrical connection is formed between the corresponding terminal and the cable. In this way, the electrical connection between the cable and the terminal can achieve the effect of waterproofing and moisture-proofing, making the charging pile 10 suitable for humid environments.

[0142] Furthermore, in some embodiments, the third housing 18, in addition to the incoming and outgoing terminals, also contains switching devices (such as relays) and other devices that require frequent maintenance. That is, the user-side wiring and devices requiring frequent maintenance are placed inside the third housing 18. In this way, the third housing 18 can serve as a maintenance housing, distinct from the first housing 11 and the second housing 12, achieving separate partitioning of devices requiring frequent maintenance from those that do not.

[0143] In some embodiments, the boundary of the air duct 13 is defined by employing a corresponding structure to improve the heat dissipation uniformity of the charging pile 10. Two methods for defining the boundary of the air duct 13 will be described below.

[0144] In the first embodiment, the charging pile 10 further includes a surrounding panel, and the surrounding panel, the first housing 11, the second housing 12, and the third housing 18 cooperate to surround the outer periphery of the air duct 13. The fan 14 is fixed to the surrounding panel, and the air vent 15 is provided on the surrounding panel.

[0145] By setting up a surrounding plate, and ensuring that the surrounding plate, the first housing 11, the second housing 12, and the third housing 18 surround the outer perimeter of the air duct, the air duct 13 can be confined within the space jointly enclosed by the surrounding plate, the third housing 18, the first housing 11, and the second housing 12. This allows all the air blown out by the fan 14 to enter the air duct 13, which is beneficial for the efficient heat dissipation of the power device 50. Furthermore, by using the third housing 18 to define the boundary of the air duct, the third housing 18 can also be effectively utilized.

[0146] The enclosure panel can be an independent component relative to the first housing 11, the second housing 12, and the third housing 18, and can be fixed to the first housing 11, the second housing 12, and the third housing 18 to define the boundary of the air duct 13. Alternatively, it can be integrally formed with one of the first housing 11, the second housing 12, and the third housing 18, that is, the enclosure panel is an integrally formed part with one of the first housing 11, the second housing 12, and the third housing 18.

[0147] In one embodiment, please refer to the reference. Figure 2 and Figure 7 In some embodiments, the enclosure includes a first side plate 191 and a second side plate 192. The arrangement directions of the first side plate 191 and the second side plate 192, the arrangement directions of the first housing 11 and the second housing 12, and the arrangement directions of the third housing 18 and the air duct 13 are all perpendicular to each other. A fan 14 is fixed to the first side plate 191, and an air vent 15 is disposed on the second side plate 192. The enclosure also includes a third side plate 193, which is disposed on the side of the air duct 13 opposite to the third housing 18.

[0148] That is, the enclosure includes a first side panel 191, a second side panel 192, and a third side panel 193, wherein the first side panel 191, the third side panel 193, the second side panel 192, and the third shell 18 are connected end to end. The space formed by the enclosure, the first shell 11, the second shell 12, and the third shell 18 is the air duct 13.

[0149] The first side plate 191 is used to fix the fan 14. The method of fixing the fan 14 on the first side plate 191 is not limited in this application, such as fixing it with screws.

[0150] The second side panel 192 is used to set the air vent 15. The shape, number and size of the air vent 15 are not limited in this application and can be determined according to the air outlet requirements.

[0151] Figure 13This is the fifth schematic diagram of the structure of the charging pile 10 provided in the embodiments of this application. Figure 14 for Figure 13 An exploded view of the charging pile 10. In another embodiment, please refer to... Figure 8 , Figure 9 and Figure 14 In the second embodiment, the wall surface of the first housing 11 that contacts the air duct 13 has a first connecting plate 1931, located at the end of the first housing 11 away from the third housing 18; the wall surface of the second housing 12 that contacts the air duct 13 has a second connecting plate 1932, located at the end of the second housing 12 away from the third housing 18. The first connecting plate 1931 and the second connecting plate 1932 are connected to form a third side plate 193.

[0152] That is, the third side plate 193 can be a component that is independent of the first housing 11 and the second housing 12, or a part of the third side plate 193 can be part of the first housing 11 and another part can be part of the second housing 12 (or, a part of the third side plate 193 is integrally formed with the first housing 11 and another part of the third side plate 193 is integrally formed with the second housing 12).

[0153] When a portion of the third side plate 193 is integrally formed with the first housing 11 and another portion of the third side plate 193 is integrally formed with the second housing 12, the first housing 11 and the second housing 12 can both accommodate the corresponding circuit board and power device 50 and surround the outer periphery of the air duct 13. In this way, the first housing 11 and the second housing 12 can be effectively utilized, and materials can be saved and costs reduced.

[0154] When a portion of the third side plate 193 is integrally formed with the first housing 11, and another portion of the third side plate 193 is integrally formed with the second housing 12, for example, the cross-section of the second portion 112 of the first housing 11 and the second portion 112 of the second housing 12 is U-shaped. Of course, the U-shaped second portion 112 can be an absolute U-shape or an approximate U-shape.

[0155] Of course, the two methods described above for defining the boundary of the air duct 13 are merely examples and not limitations on the available options for defining the boundary of the air duct 13. In some embodiments, other structural forms can also be used to define the boundary of the air duct 13. For example, an annular structure can be provided between the first housing 11 and the second housing 12, with the fan 14 and the air outlet 15 respectively disposed within the annular structure. This annular structure can be a single-piece molded part; or the annular structure can include several independent parts connected together.

[0156] Furthermore, the relative fixation of the first housing 11 and the second housing 12 in this application can be achieved by screws, welding, gluing, or snap-fitting structures. Similarly, the mutual fixation of the first housing 11 and the third housing 18, as well as the relative fixation of the second housing 12 and the third housing 18, can be achieved by screws, welding, gluing, or snap-fitting structures.

[0157] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A charging pile, characterized in that, The charging station includes a charging gun, a first housing, a second housing, a first circuit board located inside the first housing, and a second circuit board located inside the second housing; the charging station also includes multiple power devices, a portion of which are located inside the first housing and fixed to the first circuit board, and another portion of which are located inside the second housing and fixed to the second circuit board; the side of the second housing facing away from the first housing is used to mount a receiving component; The power devices are electrically connected to form a power conversion circuit, and the charging gun is electrically connected to the output terminal of the power conversion circuit. The first housing and the second housing are connected, and an air duct is provided between the first housing and the second housing; The charging pile also includes a fan and an air vent. The arrangement direction of the fan and the air vent is perpendicular to the arrangement direction of the first housing and the second housing. The air duct is located between the fan and the air vent, and the fan faces the air duct.

2. The charging post of claim 1, wherein, The portions of the plurality of power devices located on the first circuit board are disposed on the side of the first circuit board facing the air duct; and / or, The portion of the plurality of power devices located on the second circuit board is disposed on the side of the second circuit board facing the air duct.

3. The charging post of claim 1, wherein, The charging pile also includes multiple fins, which are located inside the air duct, and the multiple fins are fixed on the wall surface of the first housing in contact with the air duct and / or the wall surface of the second housing in contact with the air duct.

4. The charging station of claim 1, wherein, The wall surface of the first housing that contacts the air duct and / or the wall surface of the second housing that contacts the air duct has a first through hole; The charging pile further includes a metal substrate, an insulating member fixed to one side of the metal substrate, and a plurality of fins fixed to the other side of the metal substrate. At least a portion of the metal substrate is located at the first through hole and fixed to the first housing or the second housing. The insulating member is disposed inside the first housing or the second housing, and the plurality of fins are located inside the air duct.

5. The charging post according to claim 3 or 4, characterized in that, The arrangement directions of the first housing and the second housing, the arrangement directions of the fan and the air vent, and the arrangement directions of the plurality of fins are all perpendicular to each other.

6. The charging post according to claim 3 or 4, characterized in that, The side of the first housing closest to the air duct protrudes from the air duct to form a first groove facing into the first housing, and the side of the power device fixed to the first circuit board facing away from the first circuit board is located within the first groove; or, The side of the second housing closest to the air duct protrudes from the air duct to form a second groove facing into the second housing, and the side of the power device fixed to the second circuit board away from the second circuit board is located in the second groove.

7. The charging station of claim 6, wherein, The first groove includes multiple protrusions, and the side of the first housing near the air duct has multiple protrusions for forming the multiple first grooves. At least two of the protrusions are fixed with the multiple fins on the side near the second housing. The ends of the multiple fins fixed to different protrusions are flush with the ends near the second housing; or, The second groove includes a plurality of protrusions on the side of the second housing near the air duct for forming a plurality of the second grooves. At least two of the protrusions are fixed with the plurality of fins on the side near the first housing. The plurality of fins fixed on different protrusions are flush with the end near the first housing.

8. The charging post according to any one of claims 1-4, characterized in that, The charging pile further includes a third housing, an inlet terminal, and an outlet terminal. The third housing is located on one side of the air duct. The arrangement directions of the third housing and the air duct, the arrangement directions of the first housing and the second housing, and the arrangement directions of the fan and the air outlet are all perpendicular to each other, and the first housing and the second housing are both fixedly connected to the third housing. The inlet terminal and the outlet terminal are at least partially fixed inside the third housing. The third housing has a first through hole corresponding to the first housing and a second through hole corresponding to the second housing. The charging pile further includes a first conductive structure and a second conductive structure. One end of the first conductive structure is located inside the third housing and is electrically connected to the incoming terminal. The other end of the first conductive structure extends through the first through hole into the first housing and is electrically connected to the first circuit board or at least one of the power devices fixed on the first circuit board. One end of the second conductive structure is located inside the third housing and is electrically connected to the output terminal. The other end of the second conductive structure extends through the second through hole into the second housing and is electrically connected to the second circuit board or at least one of the power devices fixed on the second circuit board.

9. The charging station of claim 8, wherein, The charging pile also includes a enclosure, which includes a first side plate and a second side plate. The arrangement directions of the first side plate and the second side plate, the arrangement directions of the first housing and the second housing, and the arrangement directions of the third housing and the air duct are perpendicular to each other. The fan is fixed to the first side plate, and the air outlet is located on the second side plate. The enclosure also includes a third side plate, which is located on the side of the air duct away from the third housing.

10. The charging station of claim 9, wherein, The wall surface of the first housing that contacts the air duct has a first connecting plate, which is located at the end of the first housing away from the third housing; the wall surface of the second housing that contacts the air duct has a second connecting plate, which is located at the end of the second housing away from the third housing. The first connecting plate and the second connecting plate are connected to form the third side plate.

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