Charging system with independent air duct

By using an independent air duct design and temperature regulation system, the problems of poor heat dissipation and dust accumulation in traditional air-cooled heat dissipation methods have been solved, achieving efficient and stable operation of the charging system and reducing maintenance costs and noise.

CN223864706UActive Publication Date: 2026-02-03CHINA SOUTHERN POWER GRID ELECTRIC VEHICLE SERVICE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520088482.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-02-03
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

Traditional air-cooling methods in chargers suffer from poor heat dissipation, high noise, high air resistance, and difficulty in cleaning dust accumulation. They are particularly difficult to meet heat dissipation requirements during high-load operation, affecting equipment stability and maintenance costs.

Method used

It adopts an independent air duct design, including an air inlet duct, a first air outlet duct, and a second air outlet duct, forming an outer circulation air duct. Combined with a heat dissipation module and a fan, it achieves precise temperature regulation through a temperature sensor and control module, ensuring that the cool air effectively removes heat and avoids overheating and dust accumulation in the equipment.

Benefits of technology

It improves the operational stability and heat dissipation efficiency of the charging system, reduces maintenance difficulty and cost, ensures that the equipment does not malfunction due to excessive temperature during efficient operation, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223864706U_ABST
    Figure CN223864706U_ABST
Patent Text Reader

Abstract

The utility model relates to a charging system with an independent air duct, which comprises a transformer, a first charger and a second charger, and is characterized in that the first charger and the transformer are arranged at an interval along a second direction; the first charger and the second charger are arranged at an interval along the first direction; an air inlet duct is arranged between the first charger and the second charger, a first air outlet duct is arranged between the first charger and the transformer, and a second air outlet duct is arranged between the second charger and the transformer. The heat is transferred to the outside of the charging system through the outer circulating air duct, so that the cold air can effectively take away the heat in the charging system, the problem of equipment damage or efficiency reduction caused by overhigh temperature is avoided, and the working stability of the charging system is improved; due to the fact that the air channel is designed in an external circulation mode, the problem of internal dust accumulation is avoided, and cleaning and maintaining difficulty is lowered.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of new energy charging pile technology, and in particular to charging systems with independent air ducts. Background Technology

[0002] With the development of new energy technologies, the charging demand for electric vehicles is constantly increasing, especially with the application of high-voltage charging equipment. To meet the demand for fast charging of electric vehicles, 10KV direct-drop chargers have emerged. These chargers efficiently convert electrical energy into battery power, while effectively managing the heat generated during high-power charging to ensure the safe and stable operation of the charging equipment.

[0003] In traditional technology, most chargers employ air-cooling solutions, which dissipate heat by introducing cool air into the charger and expelling hot air. Chargers typically use air-cooling modules, dissipating heat through side-flow cooling. The airflow structure of the air-cooling module generally introduces cool air from one side of the charger, removes heat through the module, and then exhausts it from the other side. This method is low-cost, easy to install, and meets the heat dissipation requirements under normal operating conditions.

[0004] However, existing air-cooling methods suffer from poor heat dissipation, high noise levels, and high air resistance in practical applications. Due to the instability of airflow and design limitations, the equipment struggles to provide sufficient heat dissipation under high loads. Furthermore, the noise generated by the high-speed operation of the fan affects the operating environment, and inadequate air duct design leads to easy dust accumulation inside the equipment, making cleaning difficult and increasing maintenance costs. Utility Model Content

[0005] Therefore, it is necessary to provide a charging system with an independent air duct to address the problem of poor air cooling performance and dust accumulation in the charger during the heat dissipation process.

[0006] In a first aspect, this application provides a charging system with an independent air duct, comprising:

[0007] transformer;

[0008] The first charger is positioned at an interval from the transformer along the second direction;

[0009] The second charger is arranged at an interval along the first direction;

[0010] The first charger and the second charger are connected by an air inlet duct, the first charger and the transformer are connected by a first air outlet duct, and the second charger and the transformer are connected by a second air outlet duct.

[0011] In one embodiment, the first charger includes:

[0012] A heat dissipation module is installed on the cabinet of the first charger to circulate the heat inside the first charger to the outside of the first charger.

[0013] In one embodiment, the heat dissipation module includes:

[0014] The first heat dissipation module is located on the top of the first charger cabinet. The first heat dissipation module is a one-way heat dissipation port, which is used to circulate heat dissipation for the first charger.

[0015] In one embodiment, the heat dissipation module further includes:

[0016] The second heat dissipation module is installed on the side of the first charger cabinet along the air inlet duct and the first air outlet duct, and is used to transfer the heat inside the first charger to the first air outlet duct and / or the air inlet duct.

[0017] In one embodiment, the first charger further includes:

[0018] The first cooling fan is located on the top of the first charger cabinet and is used to exhaust the internal heat of the first charger circulating in the first cooling module to the outside of the first charger for heat dissipation.

[0019] In one embodiment, the first charger further includes:

[0020] The second cooling fan is installed on the cabinet of the first charger at the air outlet of the first air outlet duct to enhance the air pressure of the first air outlet duct.

[0021] In one embodiment, it further includes:

[0022] Temperature sensors are installed at the air inlet of the air inlet duct, the air outlet of the first air outlet duct, and the air outlet of the second air outlet duct to collect the temperature of the air inlet duct, the first air outlet duct, and the second air outlet duct.

[0023] In one embodiment, it further includes:

[0024] The control module, connected to the temperature sensor, is used to adjust the air pressure in the air duct based on the temperature of the air inlet duct, the first air outlet duct, and the second air outlet duct collected by the temperature sensor.

[0025] In one embodiment, the control module is connected to a second cooling fan, and the rotation speed of the second cooling fan is adjusted according to the temperature of the first air outlet duct collected by the temperature sensor.

[0026] In one embodiment, the first charger and the second charger are symmetrically arranged about the central axis of the transformer.

[0027] The aforementioned charging system with independent air ducts consists of an inlet air duct, a first outlet air duct, and a second outlet air duct forming an outer circulation air duct. The first and second chargers only perform internal circulation. While transferring heat from inside the chargers to the outside, the outer circulation air duct also transfers heat to the outside of the charging system. This ensures that cool air can effectively remove heat from inside the charging system, avoiding equipment damage or efficiency reduction due to excessive temperature and improving the operational stability of the charging system. Because the air duct adopts an external circulation design, it avoids the problem of internal dust accumulation, reducing the difficulty of cleaning and maintenance. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a charging system with an independent air duct in some embodiments of this application.

[0030] Figure 2 The images show the front view, left view, and right view of the first charger in some embodiments of this application.

[0031] Figure 3 This is a layout diagram of the heat dissipation module in the first charger in some embodiments of this application.

[0032] Figure 4 This is a top view of a first charger in some embodiments of this application.

[0033] Explanation of icon numbers:

[0034] 102. Transformer; 104. First charger; 106. Second charger; 108. First heat dissipation module; 110. Second heat dissipation module; 112. First heat dissipation fan. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, 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.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0042] To address the problems in the relevant technologies, firstly, referring to... Figure 1 One embodiment of this application provides a charging system with independent air ducts, including a transformer 102, a first charger 104 and a second charger 106. The first charger 104 and the transformer 102 are spaced apart along a second direction; the first charger 104 and the second charger 106 are spaced apart along a first direction; an air inlet duct is provided between the first charger 104 and the second charger 106, a first air outlet duct is provided between the first charger 104 and the transformer 102, and a second air outlet duct is provided between the second charger 106 and the transformer 102.

[0043] Transformer 102 is used to convert high-voltage electrical energy into a low-voltage power supply suitable for charging electric vehicles. The first charging device and the second charging device may have the same or different structures, and they operate in parallel to convert and output electrical energy for electric vehicles. The air inlet duct is used to guide cold air into the charging system, and the air outlet duct is used to exhaust heat generated within the charging system.

[0044] Specifically, the first charger 104 and the second charger 106 are spaced apart along a first direction, and the first charger 104, the second charger 106, and the transformer 102 are spaced apart along a second direction. The gap between the first charger 104 and the second charger 106 is an air inlet duct, the gap between the first charger 104 and the transformer 102 is a first air outlet duct, and the gap between the second charger 106 and the transformer 102 is a second air outlet duct. The air inlet duct, the first air outlet duct, and the second air outlet duct are interconnected. When the charging system needs to dissipate heat, cold air is introduced from the air inlet duct. The cold air in the air inlet duct cools the first charger 104 and the second charger 106 on both sides, transferring the heat discharged after the internal circulation of the first charger 104 and the second charger 106 to the first air outlet duct and the second air outlet duct, and then dissipating it from the charging system through the first air outlet duct and the second air outlet duct, thus keeping the charging system within the optimal temperature range.

[0045] In this embodiment, an outer circulation duct is formed by an air inlet duct, a first air outlet duct, and a second air outlet duct. The first charger 104 and the second charger 106 only perform internal circulation. While transferring heat from inside the charger to outside the charger, the outer circulation duct also transfers heat to outside the charging system, ensuring that cold air can effectively remove heat from inside the charging system. This avoids equipment damage or reduced efficiency due to excessive temperature and improves the working stability of the charging system. Since the duct adopts an external circulation design, the problem of internal dust accumulation is avoided, reducing the difficulty of cleaning and maintenance.

[0046] Reference Figures 2 to 4 In some embodiments, the first charger 104 includes a heat dissipation module disposed on the cabinet of the first charger 104, for circulating the heat inside the first charger 104 to the outside of the first charger 104.

[0047] The first charger 104 and the second charger 106 are symmetrically arranged about the central axis of the transformer 102. The heat dissipation module includes a first heat dissipation module 108 and a second heat dissipation module 110. The first heat dissipation module 108 is located on the top of the cabinet of the first charger 104 and is a unidirectional heat dissipation port used for internal circulation heat dissipation of the first charger 104. The second heat dissipation module 110 is located on the side of the cabinet of the first charger 104 along the air inlet duct and the first air outlet duct, and is used to transfer the internal heat of the first charger 104 to the first air outlet duct and / or the air inlet duct.

[0048] Specifically, the heat dissipation module of the first charger 104 includes a first heat dissipation module 108 and a second heat dissipation module 110. The first heat dissipation module 108 is located on the top of the first charger 104 and is a one-way heat dissipation port used to expel the heat circulating inside the first charger 104 to the outside. The first heat dissipation module 108 ensures that heat can flow out of the device quickly, thereby ensuring that the working efficiency of the first charger 104 will not decrease due to high temperature. The first heat dissipation module 108 can be a top heat dissipation fin, which is a composite material heat dissipation fin, which can achieve good heat insulation performance and effectively reduce wind noise on the basis of heat insulation. The second heat dissipation module 110 is located on the side of the cabinet of the first charger 104, and is set along the path of the air inlet duct and the first air outlet duct. The second heat dissipation module 110 effectively transfers the heat inside the first charger 104 to the first air outlet duct or the air inlet duct, thereby further improving the heat dissipation efficiency. The second heat dissipation module 110 can work with the air inlet duct and the air outlet duct to achieve more efficient heat conduction and discharge. The second heat dissipation module 110 is a heat dissipation fin made of a composite material, which can effectively dissipate heat and reduce noise, reduce internal material damage, and the fins have a certain vibration isolation effect to eliminate standing waves caused by friction between air and fins in the hollow material, thereby reducing the pressure rise.

[0049] The second charger 106 has the same structure as the first charger 104. The second charger 106 also has a heat dissipation module, which includes a third heat dissipation module and a fourth heat dissipation module. The third heat dissipation module is located on the top of the second charger 106 and is a unidirectional heat dissipation vent used to expel the heat circulating inside the second charger 106 to the outside. The third heat dissipation module ensures that heat can quickly flow out of the device, thus ensuring that the working efficiency of the second charger 106 will not decrease due to high temperature. The third heat dissipation module can be a top heat dissipation fin, which is made of composite material and can achieve good heat insulation performance while effectively reducing wind noise. The fourth heat dissipation module is located on the side of the cabinet of the second charger 106, along the path of the inlet air duct and the second outlet air duct. The fourth heat dissipation module effectively transfers the heat inside the second charger 106 to the second outlet air duct or the inlet air duct, thereby further improving the heat dissipation efficiency. The fourth heat dissipation module can work with the inlet and outlet air ducts to achieve more efficient heat conduction and discharge. The fourth heat dissipation module consists of heat dissipation fins made of a composite material, which can effectively dissipate heat and reduce noise, thereby reducing internal material damage. The fins also have a certain vibration isolation effect to eliminate standing waves caused by friction between air and fins in the hollow material, thus reducing the pressure rise.

[0050] In this embodiment, the precise layout of the heat dissipation module quickly removes heat from the inside of the first charger 104, ensuring stable operation of the equipment and preventing damage to electrical components from high temperatures, thereby improving the system's efficiency and stability. The independent external air duct design avoids the possibility of dust accumulation inside the equipment, reducing maintenance costs. The external arrangement of the heat dissipation module also makes cleaning easier, eliminating the need for frequent cleaning of the internal air ducts, thus reducing the difficulty of equipment maintenance. The first charger 104 and the second charger 106 are symmetrically arranged about the central axis of the transformer 102, ensuring structural balance of the charging system, more uniform airflow, and better heat dissipation.

[0051] Reference Figures 2 to 4 In some embodiments, the first charger 104 includes a first cooling fan 112, which is disposed on the top of the cabinet of the first charger 104 and is used to exhaust the internal heat of the first charger 104 circulated by the first cooling module 108 to the outside of the first charger 104 for heat dissipation.

[0052] The first charger 104 also includes a second cooling fan, which is installed on the cabinet of the first charger 104 at the air outlet of the first air outlet duct to enhance the air pressure of the first air outlet duct.

[0053] Specifically, the first cooling fan 112 is located at the top of the first charger 104 cabinet, dissipating the heat circulating inside the first charger 104 through the first cooling module 108 to the outside, ensuring effective control of the charger's internal temperature. By expelling hot air from the charger's interior to the outside, the first cooling fan 112 helps reduce the overall temperature of the charger, thereby improving its working efficiency and lifespan. The second cooling fan is located at the air outlet of the first air outlet duct, on the side of the first charger 104 cabinet. The second cooling fan enhances the air pressure and increases the airflow velocity of the first air outlet duct, ensuring that the hot air inside the charger can be quickly and effectively expelled, accelerating heat dissipation and preventing excessively high temperatures from affecting the normal operation of the charging system.

[0054] Optionally, an intake fan is installed in the air intake duct to regulate the airflow speed. By adjusting the speed of the intake fan and the second cooling fan, the air pressure and gas speed in the duct are regulated. The second cooling fan is mainly responsible for exhausting hot air, while the intake fan enhances the airflow speed in the air intake duct. The combined effect of the two makes the fan operation more stable and reduces the noise caused by high speed.

[0055] In this embodiment, the efficient operation of the first cooling fan 112 and the second cooling fan ensures that the equipment temperature is kept within the optimal range, improves the heat dissipation efficiency of the charging system, avoids energy efficiency reduction caused by excessively high temperature, and the external heat dissipation duct makes it difficult for dust to accumulate inside the first charger 104 and the second charger 106, reducing the frequency of equipment cleaning and maintenance and lowering maintenance costs.

[0056] In some embodiments, the charging system further includes a temperature sensor and a control module. The temperature sensor is located at the air inlet of the air inlet duct, the air outlet of the first air outlet duct, and the air outlet of the second air outlet duct, and is used to collect the temperature of the air inlet duct, the first air outlet duct, and the second air outlet duct. The control module is connected to the temperature sensor and is used to adjust the air pressure within the air ducts based on the temperatures collected by the temperature sensor in the air inlet duct, the first air outlet duct, and the second air outlet duct.

[0057] The temperature sensor is a device used to monitor temperature changes in real time. It is installed at the air inlet of the inlet duct, the air outlet of the first outlet duct, and the air outlet of the second outlet duct to collect temperature data from each duct, providing a basis for subsequent temperature control adjustments. The control module receives data from the temperature sensor and adjusts the airflow and air pressure in the ducts according to preset temperature control logic. The control module ensures that the temperature inside the charging system is within the ideal range by adjusting the fan speed and other methods.

[0058] For example, the control module is connected to a second cooling fan, and the speed of the second cooling fan is adjusted according to the temperature of the first air outlet duct collected by the temperature sensor. When the temperature sensor detects that the temperature of the first air outlet duct is too high, the control module adjusts the speed of the second cooling fan, increases the air pressure, and speeds up the airflow, thereby accelerating heat dissipation; conversely, if the temperature is too low, the fan speed will be reduced to avoid excessive heat dissipation. This allows for precise regulation of the heat dissipation process of the charging system, preventing overheating or energy waste due to uneven or excessive heat dissipation. It also avoids noise generated by the fan blades disturbing the airflow when the charging system is not operating at full power.

[0059] In this embodiment, by combining a temperature sensor and a control module, the operating status of the first cooling fan 112 and the second cooling fan can be adjusted according to changes in the actual working environment, thereby optimizing temperature control. This not only improves the heat dissipation efficiency of the charging system but also ensures that the equipment will not malfunction due to excessive temperature during high-efficiency operation, extending the system's service life. At the same time, the automatic adjustment function of the control module can effectively reduce fan noise, improving system quietness and user experience while ensuring heat dissipation performance.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A charging system with an independent air duct, characterized in that, The charging system includes: transformer; The first charger is disposed at a distance from the transformer along the second direction; The second charger is provided, and the first charger and the second charger are spaced apart along a first direction; The first charger and the second charger are provided with an air inlet duct, the first charger and the transformer are provided with a first air outlet duct, and the second charger and the transformer are provided with a second air outlet duct.

2. The charging system according to claim 1, characterized in that, The first charger includes: A heat dissipation module is installed on the cabinet of the first charger to circulate the heat inside the first charger to the outside of the first charger.

3. The charging system according to claim 2, characterized in that, The heat dissipation module includes: The first heat dissipation module is located on the top of the first charger cabinet. The first heat dissipation module is a one-way heat dissipation port, which is used to circulate heat dissipation for the first charger.

4. The charging system according to claim 2, characterized in that, The heat dissipation module also includes: The second heat dissipation module is disposed on the side of the first charger cabinet along the air inlet duct and the first air outlet duct, and is used to transfer the heat inside the first charger to the first air outlet duct and / or the air inlet duct.

5. The charging system according to claim 3, characterized in that, The first charger also includes: The first cooling fan is installed on the top of the first charger cabinet and is used to exhaust the internal heat of the first charger circulating in the first cooling module to the outside of the first charger for heat dissipation.

6. The charging system according to claim 4, characterized in that, The first charger also includes: The second cooling fan is installed on the cabinet of the first charger at the air outlet of the first air outlet duct to enhance the air pressure of the first air outlet duct.

7. The charging system according to claim 4, characterized in that, Also includes: Temperature sensors are installed at the air inlet of the air inlet duct, the air outlet of the first air outlet duct, and the air outlet of the second air outlet duct to collect the temperature of the air inlet duct, the first air outlet duct, and the second air outlet duct.

8. The charging system according to claim 7, characterized in that, Also includes: The control module, connected to the temperature sensor, is used to adjust the air pressure in the air ducts according to the temperatures of the air inlet duct, the first air outlet duct, and the second air outlet duct collected by the temperature sensor.

9. The charging system according to claim 8, characterized in that, The first charger also includes: The second cooling fan is installed on the cabinet of the first charger at the air outlet of the first air outlet duct to enhance the air pressure of the first air outlet duct. The control module is connected to the second cooling fan, and the speed of the second cooling fan is adjusted according to the temperature of the first air outlet duct collected by the temperature sensor.

10. The charging system according to claim 1, characterized in that, The first charger and the second charger are symmetrically arranged about the central axis of the transformer.