High power dc charging system

Abstract

A high power direct current (HPDC) charging system for charging electric vehicles is provided. The HDPC charging system includes a housing defining a sealed compartment and a chimney compartment. It also includes a heat generating electrical component located within the sealed compartment. The HDPC charging system is configured to deliver an output power of 20 kilowatts or more. The housing includes a heat conducting portion that provides heat transfer between the sealed compartment and the chimney compartment. The housing also includes a lower inlet opening and an upper outlet opening that enable airflow between the chimney compartment and ambient air. The chimney compartment defines a substantially vertical airflow path through the heat conducting portion from the lower inlet opening to the upper outlet opening. The sealed compartment is air tight with respect to the chimney compartment and the ambient air.

Description

Technical Field

[0001] The embodiments of this disclosure generally relate to the field of charging systems, and more specifically, to high-power direct current (HPDC) charging systems for charging electric vehicles. Background Technology

[0002] With the increasing popularity of electric vehicles, high-power DC (HPDC) charging systems are becoming increasingly important. Fast charging capabilities are essential to meet the demands for convenience and efficiency, leading to continuous efforts to achieve even shorter charging times. Standards such as the Megawatt Charging System (MCS) have emerged, significantly increasing charging power, reducing charging time, making electric vehicle use more practical, and making charging more comparable to traditional refueling.

[0003] However, faster charging inevitably generates significant heat within the charging infrastructure, presenting thermal management challenges. Excessive heat, if not effectively managed, can negatively impact electrical components, potentially reducing their lifespan, safety, and reliability. Commonly used cooling methods rely on actively circulating ambient air, typically using fans to draw outside air into the system for effective heat dissipation.

[0004] Despite their simplicity, active cooling solutions that directly utilize ambient air introduce several drawbacks. Ambient air carries pollutants such as dust, pollen, moisture, and other particulate matter. Even advanced filtration technologies cannot completely prevent these pollutants from entering the charging system, potentially leading to damage to electronic components and accelerated aging. Furthermore, cooling components, such as fans, directly exposed to ambient conditions are susceptible to harsh weather conditions such as rain, snow, sandstorms, and extreme temperatures. Depending on the circumstances, exposure to such conditions may increase the risk of reduced lifespan or efficiency, or even equipment failure, or at least require additional maintenance to mitigate this risk.

[0005] Given these challenges, cooling solutions are needed to effectively manage heat generation in high-power electric vehicle charging systems while mitigating at least some of the aforementioned challenges. Thermal management strategies that meet these requirements can improve the reliability, durability, and safety of HPDC charging systems. Summary of the Invention

[0006] Therefore, one object of the present invention is to provide an HPDC charging system that at least partially solves some of the above-mentioned problems.

[0007] Therefore, an HPDC charging system for charging electric vehicles is provided. The HPDC charging system includes a housing defining a sealed compartment and a chimney compartment. It also includes heat-generating electrical components located within the sealed compartment. The HPDC charging system is configured to deliver an output power of 20 kW or greater. The housing includes a heat-conducting portion that provides heat transfer between the sealed compartment and the chimney compartment. The housing also includes a lower inlet opening and an upper outlet opening, allowing airflow between the chimney compartment and ambient air. The chimney compartment defines a substantially vertical airflow path from the lower inlet opening to the upper outlet opening along the heat-conducting portion. The sealed compartment is airtight relative to the chimney compartment and ambient air.

[0008] Therefore, embodiments of the claimed invention ensure that electrical components remain effectively protected from contaminants and adverse environmental conditions. This allows the charging system to operate reliably in harsh outdoor environments, including exposure to dust, moisture, extreme temperatures, and other challenging conditions. Consequently, the invention is suitable for outdoor installation, particularly where reliable performance and reduced maintenance requirements are desired.

[0009] In some embodiments that can be combined with other embodiments described herein, the sealed compartment is sealed to an appropriate sealing standard, such as IP54, IP55, IP62, IP65, or IP66 to achieve a protection rating. This arrangement helps to reliably protect internal components from dust, moisture, and other environmental contaminants, thereby improving operational durability and reducing maintenance requirements.

[0010] In some embodiments that can be combined with other embodiments described herein, the lower inlet opening is equipped with an air filter. The filter can be configured as a coarse particle filter, a mesh or sieve filter to prevent the entry of larger mechanical contaminants (e.g., debris, sticks, stones, or leaves), a fine dust filter for smaller particles, or a high-efficiency particulate air (HEPA) filter. This arrangement facilitates reliable airflow by preventing accumulated debris or larger mechanical contaminants (e.g., leaves, twigs, or stones) from obstructing or significantly reducing airflow through the airflow path. In alternative embodiments that can be combined with other embodiments described herein, the lower inlet opening is not equipped with an air filter. This arrangement can help reduce maintenance requirements and lower operating costs because periodic inspection, cleaning, or replacement of the filter becomes unnecessary. Furthermore, by eliminating the filter, system complexity and manufacturing costs can be reduced without compromising protection of the electrical components protected within the sealed compartment.

[0011] In some embodiments that can be combined with other embodiments described herein, the chimney compartment defines the airflow path as a passive airflow path. Specifically, the airflow path can be configured to promote airflow without the support of active components such as fans, relying instead on natural convection driven by temperature differences. Therefore, passive airflow, particularly airflow passively generated by natural convection, can be established along the airflow path within the chimney compartment. This arrangement can promote reliable heat dissipation without the need for active cooling devices, thereby reducing energy consumption, maintenance, system complexity, and susceptibility to mechanical failure.

[0012] In some embodiments that can be combined with other embodiments described herein, the housing includes a double-walled structure having an inner wall and an outer wall. The outer wall may be spaced apart from and parallel to the inner wall. The inner and outer walls may define a chimney compartment. The inner wall may include a heat-conducting portion.

[0013] In some embodiments that can be combined with other embodiments described herein, the outer wall includes a lower inlet opening and / or an upper outlet opening. In other embodiments, the upper outlet opening may be on the top side of the housing.

[0014] In some embodiments that can be combined with other embodiments described herein, the heat-conducting portion extends substantially along the vertical dimension of the housing, preferably along at least 50% of the vertical dimension of the housing, more preferably along at least 75% of the vertical dimension of the housing, and even more preferably along at least 90% of the vertical dimension of the housing. This arrangement can support effective passive cooling because hot air naturally rises vertically, establishing an airflow along the vertically extending heat-conducting portion.

[0015] In some embodiments that can be combined with other embodiments described herein, the chimney compartment is configured to remove heat generated due to solar energy intrusion onto the outer wall by increasing natural convection within the chimney compartment. This arrangement can limit the temperature within the sealed compartment, despite solar energy intrusion onto the outer wall, because the additional heat further enhances natural convection and amplifies the corresponding chimney effect.

[0016] In some embodiments that can be combined with other embodiments described herein, the thermally conductive portion has a thermal conductivity of at least 140 W / (m*K), or preferably at least 180 W / (m*K), or more preferably at least 200 W / (m*K). Alternatively or additionally, the thermally conductive portion may have a thermal conductivity of at least 7 W / (m*K). 2 *K), or preferably, at least 8 W / (m 2 *K), or more preferably, at least 10 W / (m 2 The overall heat transfer coefficient is *K). This arrangement promotes efficient heat dissipation from the sealed compartment to the chimney compartment.

[0017] In some embodiments that may be combined with other embodiments described herein, the thermally conductive portion may include or be composed of an aluminum alloy.

[0018] In some embodiments that can be combined with other embodiments described herein, the thickness of the heat-conducting portion can be between 2 mm and 4 mm, preferably between 2.5 mm and 3.5 mm, and more preferably around 3 mm.

[0019] In some embodiments that may be combined with other embodiments described herein, the thermally conductive portion includes a first side facing the sealed compartment and a second side facing the chimney compartment, wherein the infrared emissivity of the first side is less than that of the second side, preferably 1.2 times, when measured in the range of 3-15 µm and at temperatures between 0°C and 90°C.

[0020] In some embodiments that can be combined with other embodiments described herein, the electrical components are arranged in a vertically intermediate region of a sealed compartment, and the sealed compartment includes a lower and upper section for allowing an air circulation loop to pass through the upper and lower sections surrounding the electrical components. The HPDC charging system may include at least one fan or blower located within the sealed compartment. The fan or blower may be configured to blow air along the air circulation loop. This arrangement can help guide air within the sealed compartment along the heat-conducting portion, thereby improving heat transfer efficiency while avoiding the risk of fan or blower damage or contamination, as the circulating air remains substantially free of external contaminants.

[0021] In some embodiments that can be combined with other embodiments described herein, the electrical components include high-heat electrical components and low-heat electrical components, wherein the high-heat electrical components have a higher rated temperature than the low-heat electrical components. Specifically, the high-heat electrical components can withstand or reliably operate at higher temperatures compared to the low-heat electrical components. The electrical components can be arranged vertically such that the low-heat electrical components are located below the high-heat electrical components. This arrangement helps improve thermal management because the low-heat electrical components, which require lower operating temperatures, can remain relatively cool due to their lower vertical position.

[0022] In some embodiments that can be combined with other embodiments described herein, low-heat electrical components may include one or more of the following: electrolytic capacitors, semiconductors such as insulated-gate bipolar transistors (IGBTs), metal-oxide-semiconductor field-effect transistors (MOSFETs), diodes, printed circuit boards (PCBs), or microcontrollers. High-heat electrical components may include one or more of the following: fuses, buses, conductors, or power resistors.

[0023] In some embodiments that can be combined with other embodiments described herein, the heat-conducting portion includes fins extending into the sealed compartment and / or chimney compartment, the fins being configured to increase the surface area of ​​the heat-conducting portion. This arrangement can help increase heat transfer from the sealed compartment to the chimney compartment because the increased surface area provided by the fins enables a higher rate of heat dissipation.

[0024] In some embodiments that can be combined with other embodiments described herein, the HPDC charging system further includes an adaptive airflow management system configured to dynamically adjust airflow within the sealed compartment in response to changing thermal conditions in the sealed compartment or ambient air, preferably via one or more variable-speed fans. This arrangement helps maintain a stable operating temperature within the sealed compartment, regardless of changes in internal or external conditions.

[0025] In some embodiments that can be combined with other embodiments described herein, the HPDC charging system also includes a connector for delivering power to the vehicle, which is an MCS connector. In some embodiments, the MCS connector is configured to charge at a maximum charging rate of at least 1300 amps, preferably at least 1500 amps, and more preferably at least 2000 amps. In these cases, effective cooling is particularly advantageous because high charging currents typically generate a significant amount of heat that must be effectively dissipated to ensure reliable operation.

[0026] In some embodiments that can be combined with other embodiments described herein, the total internal volume defined by the chimney compartment is less than the total internal volume defined by the sealing compartment, preferably 1.5 times or more, or 2.5 times or more, or 3.5 times or more. In some embodiments, the sealing compartment and the chimney compartment can be configured such that each compartment is substantially cuboid in shape. The sealing compartment and the chimney compartment can share an inner wall as a common partition wall. Thus, the chimney compartment and the sealing compartment can have substantially the same height and depth dimensions, but their respective widths can differ. For example, the width of the sealing compartment can be 1.5 times or more, 2.5 times or more, or 3.5 times or more of the width of the chimney compartment. This arrangement with relatively small chimney compartments can help increase airflow velocity, resulting in more efficient convective heat transfer.

[0027] In some embodiments, which can be combined with other embodiments described herein, the HPDC charging system is configured to charge electric trucks, buses, or other commercial vehicles with high power demands. Effective thermal management is particularly advantageous for charging systems configured to charge such electric vehicles, as these systems typically operate at exceptionally high charging currents, generating a significant amount of heat that must be effectively dissipated.

[0028] In some embodiments, which can be combined with other embodiments described herein, the HPDC charging system is configured as an MCS (Multi-Channel System). This MCS configuration is particularly advantageous for electric vehicles with high power demands, such as trucks, buses, or other commercial vehicles. The MCS enables fast charging, thereby reducing vehicle downtime.

[0029] Further aspects, advantages, and features of this disclosure will be apparent from the description and accompanying drawings. Attached Figure Description

[0030] Embodiments of this disclosure will now be presented in detail by way of example with reference to the accompanying drawings, wherein: Figure 1 A schematic cross-sectional view of an HDPC charging system for an electric vehicle according to embodiments described herein is shown; and Figure 2 A schematic cross-sectional view of an HDPC charging system for an electric vehicle according to an embodiment described herein is shown. Specific Implementation

[0031] In the following description, aspects of this disclosure will be described with reference to illustrative embodiments. It should be understood that all these embodiments are provided merely to enable those skilled in the art to better understand and further practice this disclosure, and are not intended to limit the scope of this disclosure. For example, features shown or described as part of one embodiment may be used with another embodiment to produce yet another embodiment. For clarity, not all features of an actual implementation are described in this specification. It will be understood that in the development of any such actual embodiment, many implementation-specific decisions will be made to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which will vary from implementation to implementation. Furthermore, it will be understood that such development efforts can be complex and time-consuming, but will remain a routine task for those skilled in the art who benefit from this disclosure.

[0032] The disclosed subject matter will now be described with reference to the accompanying drawings. Various structures, systems, and devices are schematically depicted in the drawings for purposes of explanation only, and so that details well known to those skilled in the art are not obscured. However, the drawings are included as illustrative examples to describe and explain the disclosed subject matter. The words and phrases used herein should be understood and interpreted in accordance with the understanding of those skilled in the art regarding such words and phrases.

[0033] In the following description of the accompanying drawings, the same reference numerals denote the same parts or parts having substantially the same function. Each example is provided by way of explanation and is not intended to limit the scope of this disclosure. Features shown or described as part of one embodiment may be used in or in combination with other embodiments to produce yet another embodiment. This description is intended to include such modifications and variations.

[0034] Different variations of the solution described in this application are disclosed below.

[0035] The following paragraphs involve Figure 1 The example shown.

[0036] Figure 1 A cross-sectional schematic diagram of an HDPC charging system 100 for electric vehicles, such as heavy vehicles, trucks, buses or other commercial vehicles, is shown.

[0037] The charging system 100 includes a housing 120 that defines a sealed compartment 122 and a chimney compartment 124. The housing 120 is typically constructed of a robust, weather-resistant material to withstand outdoor conditions.

[0038] The housing 120 includes a thermally conductive portion 128 that provides heat transfer between the sealed compartment 122 and the chimney compartment 124. The thermally conductive portion 128 of the housing 120 may be made of a suitable thermally conductive material, such as aluminum, copper, or alloys thereof, or may be composed of composite materials or thermally conductive polymers.

[0039] The sealed compartment 122 is airtight relative to the chimney compartment 124 and ambient air 158. The sealed compartment 122 houses the heat-generating electrical components 126. Because the sealed compartment 122 is airtight relative to ambient air 158, the electrical components 126 housed within it are protected from moisture, dust, and other contaminants. Therefore, this sealed configuration advantageously enables the charging system 100 to operate reliably under harsh environmental conditions. This allows the charging system 100 to be deployed outdoors and in harsh environments, such as industrial areas, roadside facilities, or locations with high pollution levels.

[0040] The housing 120 includes a lower inlet opening 130 and an upper outlet opening 132, which allows airflow to occur between the chimney compartment 124 and the ambient air 158. The chimney compartment 124 defines a generally vertical airflow path 134 from the lower inlet opening 130 to the upper outlet opening 132 along the heat-conducting portion 128. The vertical orientation is indicated by a vertical arrow V.

[0041] Ambient air 158 can enter through the lower inlet opening 130. During operation of the charging system 100, electrical components 126 can generate heat, which is dissipated into the chimney compartment 124 via the heat-conducting section 128. Therefore, the entering ambient air 158 is heated, rises, and eventually exits the charging system 100 through the upper outlet opening 132, allowing the heat transferred to the chimney compartment 124 to be dissipated by natural convection. This passive cooling arrangement is advantageous because it reduces system complexity and potential points of failure, improves reliability, and simplifies maintenance. Furthermore, it reduces operating noise, which is particularly beneficial in noise-sensitive environments.

[0042] The charging system 100 also includes a charging plug 160 and a charging cable 162, which are configured to connect the charging system 100 to an electric vehicle.

[0043] The following paragraphs involve Figure 2 The example shown.

[0044] Figure 2 A cross-sectional schematic diagram of an HDPC charging system 100 according to the present invention is shown. Figure 1 Components that are identical or have substantially the same technical purpose are indicated by the same reference numerals.

[0045] The charging system 100 includes a housing 120 defining a sealed compartment 122 and a chimney compartment 124. The sealed compartment 122 is airtight relative to the chimney compartment 124 and ambient air 158. The housing 120 may include a double-wall structure 136 defining the chimney compartment with an inner wall 138 and an outer wall 140. The outer wall 140 may be spaced apart from and parallel to the inner wall 138. The chimney compartment 124 may be defined on opposite sides by the inner wall 138 and the outer wall 140. The inner wall 138 may also define one side of the sealed compartment 122.

[0046] The inner wall 138 may include a heat-conducting portion 128 that provides heat transfer between the sealed compartment 122 and the chimney compartment 124. The heat-conducting portion 128 may extend substantially along the vertical dimension of the housing 120. Figure 2 In the illustrated embodiment, the thermally conductive portion 128 extends along the entire vertical dimension of the housing 120. The vertical orientation is indicated by the vertical arrow V.

[0047] The outer wall 140 may include a lower inlet opening 130 and an upper outlet opening 132, allowing airflow to occur between the chimney compartment 124 and the ambient air 158. The chimney compartment 124 defines a generally vertical airflow path 134 from the lower inlet opening 130 to the upper outlet opening 132 along the heat-conducting portion 128.

[0048] Ambient air 158 can enter through the lower inlet opening 130. During operation of the charging system 100, electrical components 126 generate heat, which is at least partially dissipated into the chimney compartment 124 via the heat-conducting portion 128. Therefore, the entering ambient air 158 can be heated, rise, and eventually leave the charging system 100 through the upper outlet opening 132, thereby allowing the heat transferred to the chimney compartment 124 to be dissipated by natural convection.

[0049] This arrangement allows for air circulation loop 152 around the electrical components 126 within the sealed compartment 122. This arrangement can be configured such that airflow can follow the air circulation loop 152. This could be due to passive methods, such as natural convection, or due to active methods, such as a blower or fan. Figure 1 In this configuration, the airflow along the air circulation loop 152, indicated by the arrow in the sealed compartment 122, is directed such that it passes substantially from top to bottom along the heat-conducting portion 128. In different embodiments, this arrangement can be configured such that the direction of the airflow is reversed.

[0050] The thermally conductive portion 128 may have a thermal conductivity of at least 140 W / (m*K) or preferably at least 200 W / (m*K). Alternatively or additionally, the thermally conductive portion 128 may have a thermal conductivity of at least 7 W / (m*K). 2 *K), or preferably at least 10 W / (m 2 The overall heat transfer coefficient (K).

[0051] The thermally conductive portion 128 may include a first side 148 facing the sealed compartment 122 and a second side 150 facing the chimney compartment 124. When measured in the range of 3-15 µm and at temperatures between 0°C and 90°C, the infrared emissivity of the first side 148 may be less than that of the second side 150, preferably 1.2 times.

[0052] The heat-conducting portion 128 may include fins 156 extending into the sealed compartment 122 and the chimney compartment 124, the fins 156 being configured to increase the surface area of ​​the heat-conducting portion 128. In different embodiments, the heat-conducting portion 128 may include fins extending only into the sealed compartment 122 or the chimney compartment 124. In different embodiments, the heat-conducting portion 128 may not include fins.

[0053] Sealed compartments can be sealed according to appropriate sealing standards, such as IP54, IP55, IP62, IP65 or IP66 to reach the protection level.

[0054] A sealed compartment 122 houses heat-generating electrical components 126. These electrical components 126 can be arranged in a vertical intermediate region 142 of the sealed compartment 122. The sealed compartment may have a lower portion 144 located below the vertical intermediate region 142 and an upper portion 146 located above the vertical intermediate region 142. Horizontal dashed lines illustrate the arrangement of the lower portion 144, the vertical intermediate region 142, and the upper portion 146 within the sealed compartment 122. This arrangement allows an air circulation loop 152 to pass through the upper portion 146 and the lower portion 144 surrounding the electrical components 126.

[0055] A fan or blower 154 may be located within a sealed compartment. The fan or blower 154 may be configured to blow air along an air circulation loop 152. The corresponding airflow is indicated by arrows within the sealed compartment 122. The direction of the airflow can be defined by the direction, position, and configuration of the fan or blower 154. Figure 2 In this configuration, the airflow along the airflow circulation loop 152, indicated by the arrow in the sealed compartment 122, is directed such that it passes substantially from top to bottom along the heat-conducting portion 128. In different embodiments, the fan or blower 154 may be configured to reverse the direction of the airflow.

[0056] The fan or blower 154 may be a variable speed fan configured as part of an adaptive airflow management system, which is configured to dynamically adjust the airflow within the sealed compartment 122 in response to changing thermal conditions within the sealed compartment 122 or the ambient air 158.

[0057] Electrical component 126 includes a high-heat electrical component 126a and a low-heat electrical component 126b, wherein the high-heat electrical component 126a has a higher rated temperature than the low-heat electrical component 126b. The low-heat electrical component 126b is located below the high-heat electrical component 126a within a sealed compartment.

[0058] Low-heat electrical component 126b may include at least one of an electrolytic capacitor, a semiconductor such as an IGBT, a MOSFET, a diode, a PCB, or a microcontroller. Alternatively or additionally, high-heat electrical component 126a may include at least one of a fuse, a busbar, a conductor, or a power resistor.

[0059] The internal volume of the chimney compartment 124 may be less than half the internal volume of the sealed compartment 122. Both the sealed compartment 122 and the chimney compartment 124 may be generally cuboid in shape and defined by an inner wall 138, which may define one side surface of each compartment. Therefore, the chimney compartment 124 and the sealed compartment 122 may have substantially the same height and depth dimensions, but their corresponding widths may differ.

[0060] The charging system 100 may further include a charging plug 160 and a charging cable 162, which are configured to connect the charging system 100 to an electric vehicle.

[0061] The charging system may further include a fully ventilated compartment 166, separate from the sealed compartment 122 and from the chimney compartment 124. The fully ventilated compartment may include one or more vents 168. The fully ventilated compartment 166 may be actively cooled, for example by a fan or blower configured to direct ambient air through the fully ventilated compartment 166. The fully ventilated compartment 166 may include a cable cooling system.

[0062] This written description, together with the accompanying drawings, illustrates exemplary embodiments of the invention by way of example only. It enables any person skilled in the art to practice the described subject matter, including making and using any device or system. While various specific embodiments have been disclosed above, the mutually non-exclusive features of the above embodiments can be combined with each other. The patentable scope is defined by the claims, and other examples are intended to be within the scope of the claims if they have structural elements that are not different from the literal language of the claims, or if they include equivalent structural elements that are not substantially different from the literal language of the claims.

[0063] Reference symbol 100 HPDC Billing System 120 housing 122 Sealed Compartment 124 Chimney Compartment 126 Electrical components 126a High-heat electrical components 126b Low-heat electrical components 128 Thermal Conductive Components 130 Lower entrance opening 132 Upper exit opening 134 Airflow Path 136 Double-wall structure 138 Inner Wall 140 outer wall 142 Vertical intermediate area 144 Lower part of the sealed compartment 146 Upper part of the sealed compartment 148 The first side of the heat-conducting part The second side of the 150 heat-conducting section 152 Air circulation loop 154 Fan or blower 156 fins 158 Ambient Air 160 charging plug 162 charging cable 166 Fully ventilated compartments 168 Ventilation opening V. Vertical orientation.

Claims

1. A high-power direct current (HPDC) charging system (100) for charging an electric vehicle, comprising a housing (120) defining a sealed compartment (122) and a chimney compartment (124), and including a heat-generating electrical component (126) located within the sealed compartment (122), wherein: The HDPC charging system (100) is configured to deliver an output power of 20 kW or more; The housing (120) includes a heat-conducting portion (128) that provides heat transfer between the sealed compartment (122) and the chimney compartment (124). The housing (120) includes a lower inlet opening (130) and an upper outlet opening (132), the lower inlet opening (130) and the upper outlet opening (132) allowing airflow between the chimney compartment (124) and ambient air (158), the chimney compartment (124) defining a substantially vertical airflow path (134) from the lower inlet opening (130) to the upper outlet opening (132) along the heat-conducting portion (128); and The sealed compartment (124) is airtight relative to the chimney compartment (124) and the ambient air (158).

2. The HPDC charging system (100) according to claim 1, wherein, The chimney compartment (124) defines the airflow path (134) as a passive airflow path (134).

3. The HPDC charging system (100) according to claim 1, wherein, The housing (120) includes a double-wall structure (136) having an inner wall (138) and an outer wall (140), wherein the outer wall (140) is spaced apart from and parallel to the inner wall (138), wherein the inner wall (138) and the outer wall (140) define the chimney compartment (124), and wherein the inner wall (138) includes the heat-conducting portion (128).

4. The HPDC charging system according to claim 3, wherein, The outer wall (140) includes the lower inlet opening (130) and / or the upper outlet opening (132).

5. The HPDC charging system (100) according to claim 1, wherein, The heat-conducting portion (128) extends substantially along the vertical dimension of the housing.

6. The HPDC charging system according to claim 3, wherein, The chimney compartment (124) is configured to remove heat generated due to solar energy intrusion into the outer wall (140) by increasing natural convection within the chimney compartment (124).

7. The HPDC charging system (100) according to claim 1, wherein, The thermally conductive portion (128) has a thermal conductivity of at least 180 W / (m*K) and / or at least 8 W / (m*K). 2 The overall heat transfer coefficient (K).

8. The HPDC charging system (100) according to claim 1, wherein, The heat-conducting portion (128) includes a first side (148) facing the sealed compartment (122) and a second side (150) facing the chimney compartment (124), wherein the infrared emissivity of the first side (148) is less than that of the second side (150) when measured in the range of 3-15µm and at temperatures between 0°C and 90°C.

9. The HPDC charging system (100) according to claim 1, wherein, The electrical component (126) is arranged in the vertical intermediate region (142) of the sealed compartment (122), the sealed compartment including a lower part (144) and an upper part (146) for allowing an air circulation loop (152) to pass around the electrical component (126) through the upper and lower parts (146, 144), wherein the HPDC charging system (100) includes at least one fan or blower (154) located in the sealed compartment (122), wherein the fan or blower (154) is configured to blow air along the air circulation loop (152).

10. The HPDC charging system (100) according to claim 1, wherein, The electrical component (126) includes a high-heat electrical component (126a) and a low-heat electrical component (126b), wherein the high-heat electrical component (126a) has a higher rated temperature than the low-heat electrical component (126b), and wherein the electrical component (126) is arranged vertically such that the low-heat electrical component (126b) is located below the high-heat electrical component (126a).

11. The HPDC charging system (100) according to claim 10, wherein, The low-heat electrical component (126b) includes at least one of an electrolytic capacitor, a semiconductor such as an insulated gate bipolar transistor (IGBT), a metal-oxide-semiconductor field-effect transistor (MOSFET), or a diode, a printed circuit board (PCB), or a microcontroller, and the high-heat electrical component (126a) includes at least one of a fuse, a busbar, a conductor, or a power resistor.

12. The HPDC charging system (100) according to claim 1, wherein, The heat-conducting portion (128) includes fins (156) extending into the sealed compartment (122) and / or the chimney compartment (124), the fins being configured to increase the surface area of ​​the heat-conducting portion (128).

13. The HPDC charging system (100) according to claim 1 further includes an adaptive airflow management system configured to dynamically adjust the airflow within the sealed compartment (122) in response to changes in thermal conditions within the sealed compartment (122) or the ambient air (158).

14. The HPDC charging system (100) according to claim 1, wherein, The HPDC charging system (100) includes a connector for delivering power to the vehicle, the connector being a megawatt charging system MCS connector.

15. The HPDC charging system (100) according to claim 1, wherein, The total internal volume defined by the chimney compartment is less than the total internal volume defined by the sealed compartment.

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