Modular high-efficiency heat dissipation direct current charging pile
By designing modular heat dissipation components, the problem of low internal heat dissipation efficiency of DC charging piles is solved, achieving efficient heat dissipation of core components and improving the reliability and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ELEPHANT FUTURE NEW ENERGY (BEIJING) CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-23
AI Technical Summary
Existing DC charging piles suffer from short circuits in the hot and cold air channels, low heat dissipation efficiency, and an inability to provide targeted heat dissipation for internal core heat-generating components, leading to problems such as increased temperature, decreased performance, and shortened lifespan.
It adopts a modular design and uses a heat dissipation component consisting of a heat-conducting plate, a heat-conducting copper pipe, a heat spreader, and a turbine fan. The heat-conducting plate is directly attached to the core components, and the heat-conducting copper pipe and heat sink expand the heat conduction area. The movable component facilitates installation and maintenance, ensuring that heat is quickly and evenly distributed and dissipated.
It achieves efficient heat dissipation for core components, reduces temperature, extends equipment life, and improves heat dissipation efficiency and user experience.
Smart Images
Figure CN224392386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of internal heat dissipation technology for DC charging piles, and more specifically, to a modular, high-efficiency heat dissipation DC charging pile. Background Technology
[0002] As a high-power power conversion device, DC charging piles generate a lot of heat when their core power modules, such as AC / DC and DC / DC converters, are working. If heat dissipation is not timely, it will lead to a decrease in module performance, a shortened lifespan, or even a malfunction and shutdown, affecting the user experience.
[0003] However, most existing equipment adopts a single air duct or simple dual air duct design. The hot and cold air ducts are prone to short circuits, and the heat dissipation airflow is chaotic, resulting in low heat dissipation efficiency. The main problem is that it cannot provide targeted heat dissipation for the internal core heat-generating components. After the internal core heat-generating components are cooled separately and in a targeted manner, the internal temperature of the entire DC charging pile will be greatly reduced. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides a modular, high-efficiency heat dissipation DC charging pile, which has the advantages of individually enhancing heat dissipation for high-heat components in the internal core power module, and the heat dissipation module is relatively small in size and does not affect the original installation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular high-efficiency heat dissipation DC charging pile, including a main shell, a charging gun installed in the middle of the main shell, multiple frame mounting components inside the main shell, a power module and its electronic components inside the frame mounting components, a heat dissipation component in the middle of the power module and its electronic components, and movable components at both the upper and lower ends of the heat dissipation component.
[0006] The frame mounting assembly includes a pair of vertically symmetrical sliding limit plates, which are fixedly connected to each other by two pairs of metal connecting rods.
[0007] As a preferred embodiment of this utility model, the heat dissipation assembly includes a pair of heat-conducting plates fixedly connected to the middle of the power module and its electronic components. Each pair of heat-conducting plates is fixedly connected to a heat-conducting copper pipe at one end close to each other. A heat-spreading plate is fixedly connected to one end of each heat-conducting copper pipe. Multiple heat sinks are fixedly connected to the middle of the heat-spreading plate. A pair of symmetrical turbine fans are fixedly connected to the middle of the multiple heat sinks. A dustproof mesh is fixedly connected to one end of each of the multiple heat sinks.
[0008] As a preferred technical solution of this utility model, the movable component includes a pair of fixed bases fixedly connected to the upper and lower ends of the heat-conducting plate. Each pair of fixed bases is fixedly connected to a wheel housing at one end that is far apart from each other. Multiple movable wheels are installed in the middle of the wheel housing. The pair of fixed bases on the same side are fixedly connected by a pair of fixing bolts.
[0009] As a preferred technical solution of this utility model, the sliding limiting plate is U-shaped, and the metal connecting rod has multiple bolt mounting holes in the middle.
[0010] As a preferred embodiment of this utility model, multiple heat-conducting sheets are fixedly connected to the outer side of the heat-conducting plate, and a groove is provided on the inner side of the heat-conducting plate to fit the heat-conducting copper tube.
[0011] As a preferred embodiment of this utility model, the heat-conducting copper tube is arranged in a circumferential curve.
[0012] As a preferred technical solution of this utility model, the outer side of the heat-conducting plate is provided with multiple venting grooves, and the gaps between the venting grooves and the multiple heat-conducting plates are set in a one-to-one correspondence.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model uses a heat dissipation component to directly attach the power module and its electronic components via a heat-conducting plate. This allows for the rapid absorption of a large amount of heat generated by the core components, avoiding the problem of concentrated heat accumulation in traditional "overall heat dissipation". At the same time, multiple heat-conducting plates are added to the outside of the heat-conducting plate to further expand the heat conduction area. In addition, multiple moving wheels are installed inside the wheel assembly housing of the moving component, which can drive the heat dissipation component to slide flexibly along the sliding limit plate. This facilitates precise alignment of the power module during installation or quick removal of the heat dissipation component for cleaning during maintenance.
[0015] 2. This utility model reduces the temperature of core components from the source by accelerating the transfer of heat from components to the heat dissipation system. An embedded groove matching the heat-conducting copper pipe is opened on the inner side of the heat-conducting plate to ensure that the heat-conducting copper pipe and the heat-conducting plate are in close contact, reducing thermal resistance. The heat-conducting copper pipe is set in a circular curve, which greatly extends the heat conduction path and can cover more heat-generating areas. Combined with the "heat diffusion" effect of the heat spreader, it can quickly and evenly distribute local concentrated heat to multiple heat sinks, avoid local overheating of heat sinks, and maximize the utilization rate of heat dissipation area. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall open structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the disassembled structure of the mobile component of this utility model;
[0019] Figure 4 This is a schematic diagram of the overall structure of the heat dissipation component of this utility model;
[0020] Figure 5 This is a schematic diagram of the disassembled structure of the heat dissipation component of this utility model;
[0021] Figure 6 This is a schematic diagram of the outer shell structure of this utility model.
[0022] In the diagram: 1. Frame mounting assembly; 2. Power module and its electronic components; 3. Heat dissipation assembly; 4. Moving assembly; 5. Main body shell; 6. Charging gun; 101. Sliding limit plate; 102. Metal connecting rod; 301. Heat-conducting plate; 302. Heat-conducting copper pipe; 303. Heat spreader; 304. Turbine fan; 305. Dustproof net; 401. Fixed base; 402. Wheel set shell; 403. Moving wheel; 404. Fixing bolt. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1 to 5 As shown, this utility model provides a modular high-efficiency heat dissipation DC charging pile, including a main shell 5, a charging gun 6 installed in the middle of the main shell 5, multiple frame mounting components 1 inside the main shell 5, a power module and its electronic components 2 inside the frame mounting components 1, a heat dissipation component 3 in the middle of the power module and its electronic components 2, and movable components 4 at both the upper and lower ends of the heat dissipation component 3.
[0025] The frame mounting assembly 1 includes a pair of vertically symmetrical sliding limit plates 101, which are fixedly connected to each other by two pairs of metal connecting rods 102.
[0026] The sliding limit plate 101 provides mounting support and sliding track for the heat dissipation component 3, the power module and its electronic components 2. The sliding limit plate 101 is securely connected by the metal connecting rod 102 to form an overall frame structure.
[0027] The heat dissipation component 3 includes a pair of heat-conducting plates 301 fixedly connected to the middle of the power module and its electronic components 2. Each pair of heat-conducting plates 301 is fixedly connected to a heat-conducting copper pipe 302 at one end close to each other. One end of the heat-conducting copper pipe 302 is fixedly connected to a heat spreader 303. Multiple heat sinks are fixedly connected to the middle of the heat spreader 303. A pair of symmetrical turbine fans 304 are fixedly connected to the middle of the multiple heat sinks. A dustproof mesh 305 is fixedly connected to one end of the multiple heat sinks.
[0028] The heat generated by the core component is directly absorbed by a pair of heat-conducting plates 301 fixedly connected to the middle of the power module and its electronic components 2. The heat is conducted from the heat-conducting plates 301 to the heat-spreading plate 303 through the heat-conducting copper pipe 302 connected to the heat-conducting plates 301. The concentrated heat is evenly diffused to multiple heat sinks through the heat-spreading plate 303. The turbine fan 304 in the middle of the heat sink accelerates the air flow on the surface of the heat sink and quickly dissipates the heat. The dustproof net 305 at one end of the heat sink prevents dust from entering and keeps the heat dissipation component 3 clean. The heat-conducting plates (301) are symmetrically fixed to the middle of the power module and its electronic components (2) by four M4×8 bolts with a bolt hole spacing of 100mm×80mm. Thermal grease (model 7921, thermal conductivity 8.5W / (m·K)) is applied to the contact surface between the heat-conducting plates and the power module to ensure that the fitting gap is less than 0.1mm. The heat-spreading plate (303) and the heat sink are fixed by brazing at a welding temperature of 280℃ and the welding gap is less than 0.05mm.
[0029] The movable component 4 includes a pair of fixed bases 401 fixedly connected to the upper and lower ends of the heat-conducting plate 301. Each pair of fixed bases 401 is fixedly connected to a wheel housing 402 at one end that is far apart from each other. Multiple movable wheels 403 are installed in the middle of the wheel housing 402. The pair of fixed bases 401 on the same side are fixedly connected by a pair of fixing bolts 404.
[0030] In the mobile component 4, the mobile structure is fixedly connected to the heat conduction plate 301 by the fixed base 401; the heat dissipation component 3 can slide flexibly along the sliding limit plate 101 by the multiple moving wheels 403 installed in the wheel set housing 402, which is convenient for installation and maintenance.
[0031] The sliding limit plate 101 has a U-shaped overall shape, and the metal connecting rod 102 has multiple bolt mounting holes in the middle.
[0032] The sliding limit plate 101, which is arranged in a U-shape, plays a limiting and guiding role on the moving wheel 403, ensuring that the heat dissipation component 3 slides smoothly.
[0033] The outer side of the heat-conducting plate 301 is fixedly connected with multiple heat-conducting sheets, and the inner side of the heat-conducting plate 301 is provided with a groove that matches the heat-conducting copper tube 302.
[0034] Multiple heat-conducting sheets fixed to the outside of the heat-conducting plate 301 expand the heat conduction area and accelerate heat dissipation. The heat-conducting plate 301 is closely fitted with the groove embedded in the heat-conducting copper tube 302, which reduces thermal resistance and improves heat conduction efficiency.
[0035] The heat-conducting copper pipe 302 is arranged in a circular curve.
[0036] The heat-conducting copper pipe 302, which is arranged in a circular curve, extends the heat conduction path, covers more heat-generating areas, and improves the heat collection and conduction effect.
[0037] The heat-conducting plate 301 has multiple ventilation grooves on its outer side, and the gaps between the ventilation grooves and the multiple heat-conducting plates are set in a one-to-one correspondence.
[0038] Multiple ventilation grooves are formed on the outer side of the heat-conducting plate 301, and the gaps between the ventilation grooves and the multiple heat-conducting plates correspond one-to-one to form an airflow channel, which accelerates air circulation and assists the heat-conducting plates in dissipating heat.
[0039] Working principle and usage process of this utility model:
[0040] When the DC charging pile is started, the internal power module and its electronic components 2 generate a large amount of heat during AC / DC and DC / DC power conversion. At this time, the heat dissipation system starts to operate. First, the pair of heat-conducting plates 301 in the heat dissipation component 3, because they are directly fixed to the middle of the power module and its electronic components 2, can immediately make close contact with the core heat-generating components and quickly absorb the heat on the surface of the components. At the same time, the multiple heat-conducting sheets fixed on the outside of the heat-conducting plates 301 further expand the heat absorption area and help absorb the heat diffused around the components. Multiple ventilation grooves correspond one-to-one with the gaps in the heat-conducting plates, guiding the air inside the charging pile to flow between the heat-conducting plates and preventing the formation of stagnant hot zones, thus initially accelerating heat transfer. Next, grooves on the inner side of the heat-conducting plate 301, which are integrated with the embedded heat-conducting copper pipe 302, allow the copper pipe 302 to be tightly embedded in the heat-conducting plate 301, significantly reducing thermal resistance. This ensures that the heat absorbed by the heat-conducting plate 301 is transferred to the copper pipe without loss. Furthermore, the heat-conducting copper pipe 302 is arranged in a circular curve, providing wider coverage and concentrating heat from different locations to the heat spreader 303. Subsequently, the heat spreader... The hot plate 303, through an internal working fluid phase change, evenly diffuses concentrated heat onto multiple heat sinks fixed in its center, preventing localized overheating. Then, a pair of symmetrically positioned turbine fans 304 fixed in the center of the heat sinks activate, creating a directional airflow to quickly dissipate heat from the heat sink surface. Simultaneously, a dust filter 305 fixed to one end of the heat sink prevents external dust from entering, preventing blockage of the heat sinks or fan jamming, ensuring continuous heat dissipation from the equipment. During this process, the frame mounting assembly 1 provides stable support, and a pair of U-shaped sliding limit plates 1... 01 provides an installation track for the heat dissipation component 3 and the power module and its electronic components 2, and the sliding limit plate 101 is fixedly connected by two pairs of metal connecting rods 102. The multiple bolt mounting holes in the middle of the metal connecting rods 102 can be adapted to different charging pile internal spaces, making it convenient to adjust the frame position. At the same time, in the moving components 4 at the upper and lower ends of the heat dissipation component 3, the fixed base 401 firmly connects the moving structure to the heat conduction plate 301. The multiple moving wheels 403 in the wheel set housing 402 can slide along the U-shaped groove of the sliding limit plate 101, which is convenient for later maintenance and inspection.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modular high-efficiency heat-dissipation direct-current charging pile comprising a main body shell (5), characterized in that: A charging gun (6) is installed in the middle of the main body shell (5). Multiple frame mounting components (1) are provided inside the main body shell (5). A power module and its electronic components (2) are provided inside the frame mounting components (1). A heat dissipation component (3) is provided in the middle of the power module and its electronic components (2). Movable components (4) are provided at both the upper and lower ends of the heat dissipation component (3). The frame mounting assembly (1) includes a pair of vertically symmetrical sliding limit plates (101), and the pair of sliding limit plates (101) are fixedly connected to each other by two pairs of metal connecting rods (102).
2. The modular high-efficiency heat dissipation DC charging pile according to claim 1, characterized in that: The heat dissipation assembly (3) includes a pair of heat-conducting plates (301) fixedly connected to the middle of the power module and its electronic components (2). Each pair of heat-conducting plates (301) is fixedly connected to a heat-conducting copper pipe (302) at one end close to each other. One end of the heat-conducting copper pipe (302) is fixedly connected to a heat spreader (303). Multiple heat sinks are fixedly connected to the middle of the heat spreader (303). A pair of symmetrical turbine fans (304) are fixedly connected to the middle of the multiple heat sinks. A dustproof mesh (305) is fixedly connected to one end of the multiple heat sinks.
3. The modular high-efficiency heat dissipation DC charging pile according to claim 1, characterized in that: The moving component (4) includes a pair of fixed bases (401) fixedly connected to the upper and lower ends of the heat-conducting plate (301). Each pair of fixed bases (401) is fixedly connected to a wheel housing (402) at one end away from each other. Multiple moving wheels (403) are installed in the middle of the wheel housing (402). The pair of fixed bases (401) on the same side are fixedly connected by a pair of fixing bolts (404).
4. The modular high-efficiency heat dissipation DC charging pile according to claim 1, characterized in that: The sliding limit plate (101) is U-shaped, and the metal connecting rod (102) has multiple bolt mounting holes in the middle.
5. A modular, high-efficiency heat-dissipating DC charging pile according to claim 2, characterized in that: Multiple heat-conducting plates are fixedly connected to the outer side of the heat-conducting plate (301), and a groove is provided on the inner side of the heat-conducting plate (301) to fit the heat-conducting copper tube (302).
6. A modular, high-efficiency heat-dissipating DC charging pile according to claim 5, characterized in that: The heat-conducting copper pipe (302) is arranged in a circular curve.
7. A modular, high-efficiency heat-dissipating DC charging pile according to claim 5, characterized in that: The heat-conducting plate (301) has multiple venting grooves on its outer side, and the gaps between the venting grooves and the multiple heat-conducting plates are set in a one-to-one correspondence.