Charging module and charging system

Abstract

The utility model discloses a charging module and a charging system. The charging module comprises an air inlet surface, an air outlet surface, a multi-stage cooling fan group and a multi-stage cooling air duct. Wherein the air inlet surface and the air outlet surface are oppositely arranged, and the direction from the air inlet surface to the air outlet surface is a first direction; the multiple stages of cooling fan sets are arranged between the air inlet face and the air outlet face in the first direction, and each stage of cooling fan set comprises at least one cooling fan. The multiple stages of heat dissipation air channels are arranged between the air inlet face and the air outlet face in the first direction, and the multiple stages of heat dissipation air channels and the multiple stages of heat dissipation fan sets are alternately arranged. The technical problems that an existing charging module is low in heat dissipation efficiency and large in fan noise are solved, and the technical effects of improving the heat dissipation efficiency of the charging module and reducing the heat dissipation noise are achieved.

Description

Technical Field

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

[0002] With the widespread promotion and use of new energy electric vehicles, the charging power of electric vehicle charging piles is getting higher and higher, and the power of their internal charging modules is also constantly improving. Currently, charging modules with 30kW, 40kW, 60kW, and even 80kW have appeared.

[0003] As power increases, charging modules generate a significant amount of heat during operation. If this heat is not dissipated promptly, it will severely impact the performance and lifespan of the charging module. Therefore, achieving timely heat dissipation for charging modules is a crucial technical problem that needs to be solved. Utility Model Content

[0004] The main purpose of this application is to provide a charging module and charging system that aims to achieve timely heat dissipation of the charging module.

[0005] To achieve the above objectives, this application provides a charging module, comprising: an air inlet surface and an air outlet surface, wherein the air inlet surface and the air outlet surface are disposed opposite to each other, and the direction from the air inlet surface to the air outlet surface is a first direction; a multi-stage cooling fan assembly disposed between the air inlet surface and the air outlet surface along the first direction, each stage of the cooling fan assembly including at least one cooling fan; and a multi-stage cooling air duct disposed between the air inlet surface and the air outlet surface along the first direction, and alternately disposed with the multi-stage cooling fan assembly.

[0006] Optionally, the multi-stage heat dissipation duct is formed by the various electronic components inside the charging module.

[0007] Optionally, the electronic components within the charging module are arranged in descending order of heat dissipation requirements along the first direction.

[0008] Optionally, the charging module further includes: a temperature detector for acquiring temperature detection data inside the charging module; and a controller for controlling the operation of each cooling fan in each stage of the cooling fan assembly based on the temperature detection data.

[0009] Optionally, the cooling fan is a fixed-speed fan; the controller is specifically used to control the start and stop of each cooling fan in each cooling fan group according to the output power of the charging module, temperature detection data, and the current start and stop status of each cooling fan in each cooling fan group.

[0010] Optionally, the cooling fan is an adjustable speed fan; the controller is specifically used to control the speed of each cooling fan in each cooling fan group according to the output power of the charging module, temperature detection data, and the current speed of each cooling fan in each cooling fan group.

[0011] Optionally, the number of temperature detectors is one or more; when the number of temperature detectors is one, the temperature detector is placed at the maximum heat-generating point of the charging module; when the number of temperature detectors is multiple, the multiple temperature detectors are respectively placed around each level of the cooling fan assembly.

[0012] Optionally, the cooling fan is a suction fan or a blowing fan.

[0013] Optionally, the number of cooling fans in each cooling fan group may be the same or different.

[0014] Furthermore, this application also provides a charging system, including at least two charging modules as described in any one of the above, at least one charging interface, a control center, and a power distribution device; the power distribution device is connected to the control center, each of the charging modules, and each of the charging interfaces respectively; wherein, each of the charging modules is used to convert AC power from the power grid into DC power and provide it to each of the charging interfaces; the control center is used to obtain the required power of each charging interface and generate a scheduling command based on the connection relationship of the controllable switches in the power distribution device and the required power; the power distribution device is used to control the opening or closing of the controllable switches according to the scheduling command, so as to distribute the output power of each charging module to each charging interface.

[0015] The beneficial effects that this application can achieve are as follows:

[0016] This application achieves comprehensive and timely heat dissipation of the charging module by setting up an air inlet and an air outlet, and alternately arranging multiple stages of cooling fan groups and multiple stages of cooling air ducts along a first direction between them. This allows airflow to flow smoothly from the air inlet to the air outlet, passing through the various stages of cooling fan groups and cooling air ducts. The coordinated operation of the various stages of cooling fan groups reduces the burden on individual fans, enabling them to operate effectively at lower speeds and reducing heat dissipation noise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a charging module provided in Embodiment 1 of this application;

[0018] Figure 2 This is a schematic diagram of another structure of the charging module provided in Embodiment 1 of this application;

[0019] Figure 3 This is a schematic flowchart of a fan with a fixed speed, provided in Embodiment 1 of this application.

[0020] Figure 4 A schematic flowchart illustrating the control of an adjustable speed fan provided in Embodiment 1 of this application;

[0021] Figure 5 This is a schematic diagram of a charging system provided in Embodiment 2 of this application.

[0022] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] 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 the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component under a certain preset posture (as shown in the figure). If the preset posture changes, the directional indicator will also change accordingly.

[0025] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] With the widespread promotion and use of new energy electric vehicles, the charging power of electric vehicle charging piles is increasing, and the power of their internal charging modules is also constantly improving. Currently, charging modules with 30kW, 40kW, 60kW, and even 80kW are available. As the power increases, the charging module generates a large amount of heat during operation. If heat is not dissipated in time, it will seriously affect the performance and lifespan of the charging module.

[0028] Traditional solutions typically involve adding a cooling fan to one end of the charging module. However, as the integration of the charging module increases, the space for heat dissipation becomes increasingly smaller. Installing a cooling fan on only one side causes the fan to encounter greater wind resistance, significantly reducing its heat dissipation capacity and resulting in low heat dissipation efficiency. At the same time, in order to ensure heat dissipation, it is necessary to continuously increase the speed of the cooling fan on one side, thereby generating a lot of noise and increasing the overall noise level of the charging station.

[0029] To address the aforementioned issues, this application solves the technical problems of low heat dissipation efficiency and high fan noise caused by the use of a single-sided cooling fan in existing charging modules by setting up a multi-stage cooling fan group and a multi-stage heat dissipation channel structure, thereby achieving timely heat dissipation of the charging module.

[0030] The following is a detailed description of the proposed solution with reference to the accompanying drawings.

[0031] The first embodiment of this application provides a charging module, as shown below. Figure 1 The charging module includes an air inlet surface 110 and an air outlet surface 120, a multi-stage cooling fan assembly 130, and a multi-stage cooling air duct 140.

[0032] The air inlet surface 110 and the air outlet surface 120 are arranged opposite to each other, and the direction from the air inlet surface 110 to the air outlet surface 120 is the first direction; the multi-stage cooling fan group 130 is arranged between the air inlet surface 110 and the air outlet surface 120 along the first direction, and each stage of the cooling fan group 130 includes at least one cooling fan; the multi-stage cooling air duct 140 is arranged between the air inlet surface 110 and the air outlet surface 120 along the first direction, and is alternated with the multi-stage cooling fan group 130.

[0033] Specifically, the air inlet surface 110 and the air outlet surface 120 are arranged opposite to each other. The direction of the line connecting the air inlet surface 110 and the air outlet surface 120 is defined as the first direction. A multi-stage cooling fan assembly 130 is arranged between the air inlet surface 110 and the air outlet surface 120 along the first direction, and each stage of the cooling fan assembly 130 includes at least one cooling fan. The cooling fan assemblies 130 are arranged sequentially according to the first direction to form a multi-stage heat dissipation structure. A multi-stage heat dissipation duct 140 is arranged between the air inlet surface 110 and the air outlet surface 120 along the first direction, and is alternated with the multi-stage cooling fan assemblies 130. This alternating arrangement structure ensures that each stage of the cooling fan assembly 130 is connected by a heat dissipation duct 140, forming a continuous airflow channel.

[0034] The aforementioned heat dissipation structure allows external cool air to enter the charging module from the air inlet 110, pass through the various levels of heat dissipation ducts 140 and the cooling fan assembly 130, flow along the first direction, and finally be discharged from the air outlet 120. The alternating arrangement of the cooling fan assembly 130 and the heat dissipation ducts 140 forms a multi-stage heat dissipation system, enabling the cooling airflow to flow evenly through all areas inside the charging module, improving heat dissipation efficiency while reducing heat dissipation noise.

[0035] Preferably, the charging module is designed as a rectangular structure, with the first direction preferably arranged along the length of the rectangular structure. This allows the air inlet surface 110 to be located at one end of the rectangular structure, and the air outlet surface 120 to be located at the other end. The multi-stage cooling fan assembly 130 and the cooling duct 140 are arranged sequentially along the length. This length-oriented layout fully utilizes the spatial characteristics of the rectangular structure, forming a linear multi-stage cooling channel. Airflow can enter from one end of the rectangular structure, flow through the entire length of the charging module, and exit from the other end, achieving comprehensive heat dissipation coverage of the internal space of the charging module. Simultaneously, this layout also enables the cooling fan assemblies 130 at each stage to work effectively together, forming a uniformly distributed cooling force along the length, further improving heat dissipation efficiency.

[0036] As an optional implementation, the multi-stage heat dissipation duct 140 is formed by the various electronic components inside the charging module.

[0037] Specifically, the heat dissipation duct 140 is not an independently designed structural component, but rather naturally formed by the space between electronic components. The various electronic components inside the charging module (such as inductors, transformers, power transistors, and control circuits) are arranged according to their functions and design requirements. These electronic components form natural gaps and channels, constituting the multi-level heat dissipation duct 140. This method of utilizing the natural space formed by electronic components to create the heat dissipation duct 140 effectively utilizes the internal space of the charging module, reduces the need for additional heat dissipation structural components, and simplifies the overall structural design of the charging module. Simultaneously, the heat dissipation duct 140 formed by the electronic components is in direct contact with the electronic components, allowing the heat dissipation airflow to directly act on the surface of the components requiring heat dissipation, thus improving heat dissipation efficiency.

[0038] By rationally arranging the layout and spacing of electronic components, the shape and size of the heat dissipation duct 140 can be optimized, further improving airflow distribution, enhancing heat dissipation, and reducing airflow resistance and heat dissipation noise.

[0039] As an optional implementation, the electronic components within the charging module are arranged in descending order of heat dissipation requirements along the first direction.

[0040] Specifically, the electronic components within the charging module are arranged along the first direction according to their heat dissipation requirements, from highest to lowest. Components with higher heat dissipation requirements (such as high-power inductors and MOSFETs) are preferentially placed closer to the air intake surface 110, while components with lower heat dissipation requirements (such as control circuit units, control chips, and peripheral sampling circuits) are placed closer to the air outlet surface 120. This layout design ensures that external cool air first contacts the electronic components with the highest heat dissipation requirements, providing optimal heat dissipation.

[0041] By arranging electronic components according to a gradient of heat dissipation requirements, combined with the multi-stage cooling fan assembly 130, a heat dissipation area with a temperature gradient distribution is formed. The area near the air inlet 110 has a lower temperature and is suitable for placing high-power components that are sensitive to temperature; while as the airflow moves along the first direction, the air temperature gradually increases, and the area near the air outlet 120 is suitable for placing components with lower heat dissipation requirements.

[0042] Reference Figure 2Assuming the charging module uses an intake fan, with the right side as the air intake (110) and the left side as the air outlet (120), when the fan is running, the airflow moves from right to left, sequentially from the N-stage cooling duct to the primary cooling duct. Therefore, the temperature range inside the charging module increases sequentially from right to left. In this structure, high-heat-dissipation devices, such as high-power inductors or MOSFETs, are preferentially placed around the N-stage cooling duct, while low-heat-dissipation devices, such as control circuitry, control chips, and peripheral sampling circuits, are placed around the primary or secondary cooling ducts. Conversely, assuming the left side is the air intake (110) and the right side is the air outlet (120), when the fan is running, the airflow moves from left to right, sequentially from the primary cooling duct to the N-stage cooling duct. Again, the temperature range inside the charging module increases sequentially from left to right. In this structure, high-heat-dissipation devices are preferentially placed around the primary cooling duct, while low-heat-dissipation devices are placed around the N-stage cooling duct.

[0043] Similarly, assuming the charging module uses a blower-type cooling fan, with the right side as the air inlet (110) and the left side as the air outlet (120), when the fan is running, the airflow travels from right to left, sequentially from the N-stage cooling duct to the primary cooling duct. Therefore, the temperature range inside the charging module increases sequentially from right to left. In this structure, high-heat-dissipation components are preferentially placed around the N-stage cooling duct, while low-heat-dissipation components are placed around the primary or secondary cooling ducts. Conversely, assuming the left side is the air inlet (110) and the right side is the air outlet (120), when the fan is running, the airflow travels from left to right, sequentially from the primary cooling duct to the N-stage cooling duct. Therefore, the temperature range inside the charging module increases sequentially from left to right. In this structure, high-heat-dissipation components are preferentially placed around the primary cooling duct, while low-heat-dissipation components are placed around the N-stage cooling duct.

[0044] Through this electronic component layout design, the charging module can achieve more efficient heat dissipation management, maximize the heat dissipation capacity of the multi-stage cooling fan group, ensure that various electronic components work stably within a safe temperature range, and reduce overall heat dissipation noise.

[0045] As an optional implementation, the charging module further includes:

[0046] Temperature detector, used to acquire temperature data inside the charging module;

[0047] The controller is used to control the operation of each cooling fan in each stage of the cooling fan group based on temperature detection data.

[0048] Specifically, the charging module also includes a temperature detector and a controller.

[0049] A temperature detector is installed inside the charging module to acquire real-time temperature data within the module. The temperature detector can be placed at key locations inside the charging module to monitor temperature changes.

[0050] The controller is electrically connected to each stage of the cooling fan assembly 130 and a temperature detector. It receives temperature data collected by the temperature detector and controls the operating status of each cooling fan in each stage of the cooling fan assembly 130 based on this data. The controller can dynamically adjust the start / stop status or speed of the cooling fans according to the temperature data to achieve intelligent heat dissipation control. Specifically, the controller establishes an electrical connection with each cooling fan in each stage of the cooling fan assembly 130, enabling it to individually control the start / stop status or speed of each fan. When the temperature detector detects an increase in temperature in a certain area, the controller can specifically control the cooling fans in that area to enhance heat dissipation; when the temperature drops to a safe range, the controller can reduce the operating intensity of the cooling fans to reduce noise.

[0051] Optionally, the temperature detector involved in this application may be a thermocouple, a thermistor, an infrared temperature sensor, or other components. The selection can be made according to the specific application requirements and cost considerations of the charging module, and this application does not limit it.

[0052] Optionally, the controller involved in this application can be a microcontroller, a programmable logic controller (PLC), an industrial computer, or other control components, which, in conjunction with control algorithms, enable intelligent control of the cooling fan. This application does not limit this aspect.

[0053] By using a temperature sensor and controller in conjunction, the charging module can automatically adjust the operating status of the cooling fan according to the actual temperature. This ensures that the internal temperature of the charging module is maintained within a safe range while minimizing heat dissipation noise, achieving a balance between efficient heat dissipation and low-noise operation. This heat dissipation control method not only improves the heat dissipation efficiency of the charging module but also extends its service life.

[0054] As an optional implementation, the cooling fan is a fixed-speed fan;

[0055] Specifically, the controller is used to control the start and stop of each cooling fan in each cooling fan group based on the output power of the charging module, temperature detection data, and the current start and stop status of each cooling fan in each cooling fan group.

[0056] Specifically, the cooling fan of the charging module can be a fixed-speed fan. In this implementation, the speed of the cooling fan is fixed and cannot be adjusted, but the cooling effect and noise can be controlled by starting or stopping the cooling fan.

[0057] In this embodiment, since the cooling fans use fixed-speed fans, the controller achieves heat dissipation control by independently starting and stopping each cooling fan. This control method allows the charging module to flexibly adjust the number of fans in operation according to actual heat dissipation needs. When the heat dissipation demand is low, the controller can activate only the necessary number of cooling fans; while when the heat dissipation demand increases, the controller can gradually activate more cooling fans. Figure 3 As shown, firstly, the controller collects the current output power of the charging module, the temperature detection data from the temperature detector, and the number of all cooling fans in operation. Then, based on the collected data, the controller calculates the appropriate number of cooling fans to operate. Next, the controller controls the start and stop of each cooling fan in the multi-stage cooling fan group. Specifically, it determines the basic level of heat dissipation demand based on the current output power of the charging module, then combines this with the temperature detection data to determine the actual heat dissipation requirements, and considers the current start / stop status of each cooling fan to decide whether to start more cooling fans or stop some, thereby ensuring effective heat dissipation while reducing noise.

[0058] By applying independent start / stop control to the fixed-speed fans, the charging module can minimize the number of simultaneously operating cooling fans while ensuring the cooling task is completed, thereby effectively reducing the noise generated by the charging module during operation. This not only reduces the noise output of individual charging modules but also further reduces the noise of the entire charging station, minimizing noise interference to the surrounding environment and improving the user experience.

[0059] As an optional implementation, the cooling fan is an adjustable speed fan;

[0060] Specifically, the controller is used to control the speed of each cooling fan in each cooling fan group based on the output power of the charging module, temperature detection data, and the current speed of each cooling fan in each cooling fan group.

[0061] Specifically, the cooling fans employ an adjustable-speed design. The speed of the adjustable-speed fans can be adjusted according to actual cooling needs, providing more precise cooling control. In this implementation, the controller achieves cooling control by adjusting the speed of each cooling fan in each stage of the cooling fan assembly.

[0062] The controller is specifically used to control the speed of each cooling fan in each cooling fan group based on the current output power of the charging module, the temperature detection data obtained by the temperature detector, and the current speed of each cooling fan in each cooling fan group.

[0063] like Figure 4As shown, firstly, the controller collects the current output power of the charging module, the temperature detection data from the temperature detector, and the rotational speeds of all cooling fans. Then, based on these data, the controller calculates the optimal rotational speeds for each cooling fan in the multi-stage cooling fan group. Specifically, the controller first determines the basic cooling requirements based on the current output power of the charging module. When the charging module is in a high-power output state, higher cooling capacity is required; when in a low-power output state, the cooling intensity can be reduced. Then, the controller combines real-time temperature detection data from the temperature detector to analyze the internal temperature distribution of the charging module, further refining the cooling requirements. Finally, the controller considers the current rotational speed of each cooling fan and calculates the optimal rotational speed setting for each fan.

[0064] This control method, based on adjustable-speed fans, achieves more precise heat dissipation control by accurately adjusting the speed of each cooling fan. Compared to fixed-speed fan solutions, the adjustable-speed fan solution maintains optimal heat dissipation efficiency and noise control under various operating conditions, providing a smoother heat dissipation effect and further optimizing the performance and user experience of the charging module.

[0065] As an optional implementation, the number of temperature detectors may be one or more;

[0066] When there is only one temperature detector, the temperature detector is placed at the maximum heat point of the charging module.

[0067] When there are multiple temperature detectors, each temperature detector is placed around a different level of cooling fan assembly.

[0068] Specifically, the number of temperature detectors can be one or more to meet different levels of temperature monitoring needs.

[0069] When there is only one temperature detector, it is preferably placed at the location of the highest heat source within the charging module. The highest heat source is typically the area with the highest internal temperature of the charging module, such as the location where high-power electronic components (e.g., power transistors, transformers) are concentrated. Placing the single temperature detector at this location ensures that the highest internal temperature of the charging module is monitored, providing the controller with the most critical temperature data and thus achieving basic temperature monitoring functionality.

[0070] When there are multiple temperature detectors, such as Figure 2As shown, these temperature detectors are distributed around each level of the cooling fan assembly. By placing temperature detectors around each level of the cooling fan assembly, the temperature distribution in different areas inside the charging module can be monitored in real time. This distributed temperature detection scheme allows the controller to obtain more comprehensive temperature information, thereby achieving more precise control over each level of the cooling fan assembly. For example, when the temperature detector around a certain level of the cooling fan assembly detects a high temperature in that area, the controller can specifically increase the heat dissipation capacity of that level of the cooling fan assembly by increasing the number of fans started or increasing the fan speed; conversely, when the temperature around a certain level of the cooling fan assembly is low, the heat dissipation capacity of that level of the cooling fan assembly can be reduced accordingly to balance heat dissipation and noise control.

[0071] The number and layout design of these temperature detectors allow the charging module to flexibly select appropriate temperature monitoring schemes based on actual application needs and cost considerations, ensuring both the effectiveness of heat dissipation control and the economic efficiency of heat dissipation implementation.

[0072] As an alternative implementation, the cooling fan is either an intake fan or a blower fan.

[0073] Specifically, cooling fans, whether adjustable or fixed speed, can be either suction fans or blowing fans.

[0074] The suction fan forces external cool air into the charging module through the heat dissipation duct 120, dissipating heat from the inside of the charging module and achieving heat dissipation for the charging module.

[0075] The blower-type fan pushes the internal hot air out through the heat dissipation duct 120 and blows the external cold air into the charging module to dissipate heat from the charging module.

[0076] Depending on the internal structure and heat dissipation requirements of the charging module, either an intake fan or a blower fan can be flexibly selected as the cooling fan to achieve the best heat dissipation effect.

[0077] As an optional implementation, the number of cooling fans in each cooling fan group may be the same or different.

[0078] Specifically, in embodiments where the number of cooling fans in each stage of the cooling fan group 110 is the same, the same number of cooling fans are provided in each stage of the cooling fan group 110 to form a multi-stage cooling system with uniform structure.

[0079] In embodiments where the number of cooling fans in each level of the cooling fan group 110 varies, the number of cooling fans in each level of the cooling fan group 110 can be configured differently according to the distribution characteristics and heat dissipation requirements of the electronic components inside the charging module. For example, more cooling fans can be installed in areas with higher heat dissipation requirements, and fewer cooling fans can be installed in areas with lower heat dissipation requirements.

[0080] By configuring different numbers of cooling fans, the charging module can provide differentiated cooling capabilities for the cooling needs of different internal areas, further optimizing heat dissipation and reducing overall noise levels. Furthermore, by increasing the number of cooling fans in critical areas and decreasing the number in non-critical areas, cost and resource utilization can be optimized while ensuring effective heat dissipation.

[0081] The second embodiment of this application provides a charging system, such as Figure 5 As shown, it includes at least two charging modules 210, at least one charging interface 220, a control center 230, and a power distribution device 240. The power distribution device 240 is connected to the control center 230, each charging module 210, and each charging interface 220.

[0082] Each charging module 210 is used to convert AC power from the power grid into DC power and supply it to each charging interface 220; the control center 230 is used to obtain the power demand of each charging interface and generate scheduling instructions according to the connection relationship of the controllable switches in the power distribution device and the power demand; the power distribution device 240 is used to control the opening or closing of the controllable switches according to the scheduling instructions, so as to distribute the output power of each charging module 210 to each charging interface.

[0083] In one optional implementation, the charging system provided in this application is an integrated DC charging pile, with the charging interface 220 used to connect the charging gun, and the charging gun being hung on the host of the charging system via the gun holder on the main body of the charging system.

[0084] In one optional implementation, the charging system provided in this application embodiment is a split-type DC charging pile. The charging system also includes multiple charging terminals. The charging interface 220 is used to connect the charging terminals. The charging terminals are set separately from the main body of the charging system. The charging terminals are equipped with a single charging gun or dual charging guns for outputting power to electric vehicles.

[0085] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A charging module, characterized in that, include: An air inlet surface and an air outlet surface are provided, wherein the air inlet surface and the air outlet surface are arranged opposite to each other, and the direction from the air inlet surface to the air outlet surface is a first direction; A multi-stage cooling fan assembly is disposed between the air inlet surface and the air outlet surface along the first direction, and each stage of the cooling fan assembly includes at least one cooling fan. A multi-stage heat dissipation air duct is disposed between the air inlet surface and the air outlet surface along the first direction, and is alternately disposed with the multi-stage heat dissipation fan assembly.

2. The charging module according to claim 1, characterized in that, The multi-stage heat dissipation duct is formed by the various electronic components inside the charging module.

3. The charging module according to claim 1, characterized in that, The electronic components within the charging module are arranged in descending order of heat dissipation requirements along the first direction.

4. The charging module according to any one of claims 1 to 3, characterized in that, The charging module also includes: A temperature detector is used to acquire temperature detection data inside the charging module; The controller is used to control the operation of each cooling fan in each stage of the cooling fan group based on the temperature detection data.

5. The charging module according to claim 4, characterized in that, The cooling fan is a fixed-speed fan; The controller is specifically used to control the start and stop of each cooling fan in each cooling fan group based on the output power of the charging module, temperature detection data, and the current start and stop status of each cooling fan in each cooling fan group.

6. The charging module according to claim 4, characterized in that, The cooling fan is an adjustable speed fan; The controller is specifically used to control the speed of each cooling fan in each cooling fan group based on the output power of the charging module, temperature detection data, and the current speed of each cooling fan in each cooling fan group.

7. The charging module according to claim 4, characterized in that, The number of temperature detectors is one or more; When there is only one temperature detector, the temperature detector is located at the maximum heat point of the charging module; When there are multiple temperature detectors, the multiple temperature detectors are respectively arranged around each level of the cooling fan group.

8. The charging module according to any one of claims 1 to 3, characterized in that, The cooling fan is either a suction fan or a blowing fan.

9. The charging module according to any one of claims 1 to 3, characterized in that, The number of cooling fans in each level of the cooling fan assembly may be the same or different.

10. A charging system, characterized in that, It includes at least two charging modules as described in any one of claims 1 to 9, at least one charging interface, a control center, and a power distribution device; the power distribution device is respectively connected to the control center, each of the charging modules, and each of the charging interfaces; Each of the charging modules is used to convert AC power from the power grid into DC power and provide it to each of the charging interfaces; The control center is used to obtain the power demand of each charging interface and generate scheduling instructions based on the connection relationship of the controllable switches in the power distribution device and the power demand. The power distribution device is used to control the opening or closing of the controllable switch according to the scheduling command, so as to distribute the output power of each charging module to each charging interface.

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