Cooling system and charging pile

Abstract

The utility model relates to a cooling system and a charging pile. The cooling system (100) comprises: at least one fan (110) configured to draw an air flow from a radially outer side and discharge the drawn air flow in an axial direction when in operation; and at least one heat sink (120), each heat sink (120) being disposed circumferentially around a respective fan (110) of the at least one fan (110), where the heat sink (120) comprises at least a curved section (125) that at least partially follows a profile of the respective fan (110); wherein the radiator (120) comprises a plurality of radiating fins (122) which are stacked on each other in the axial direction, an interval (121) is formed between at least one pair of adjacent radiating fins in the height direction perpendicular to the circumferential direction and the axial direction, and the interval (121) allows airflow to flow from the circumferential outer side of the radiator (120) to the circumferential inner side of the radiator (120).

Description

Technical Field

[0001] This disclosure relates to charging piles, and more specifically to cooling systems for charging piles. Background Technology

[0002] Due to their environmental advantages, electric vehicles are increasingly being used in daily life. Electric vehicles use rechargeable batteries as their power source. During use, electric vehicles require frequent charging. Charging of electric vehicles relies on the availability of charging stations.

[0003] Charging stations include power devices that convert alternating current (AC) to direct current (DC). During operation, these power devices generate a significant amount of heat. Therefore, charging stations are equipped with cooling systems to dissipate heat from these power devices. Traditional cooling systems are not satisfactory in terms of heat dissipation efficiency, and there is a desire to further improve their performance. Utility Model Content

[0004] The purpose of this disclosure is to provide a cooling system and charging station designed to address one or more of the aforementioned problems and other potential issues.

[0005] A first aspect of this disclosure provides a cooling system. The cooling system includes: at least one fan configured to draw airflow from a radially outward direction and discharge the drawn airflow in an axial direction during operation; and at least one radiator, each radiator circumferentially surrounding a corresponding fan arrangement of the at least one fan, wherein the radiator includes at least a curved section that at least partially follows the contour of the corresponding fan; wherein the radiator includes a plurality of heat dissipation fins stacked on top of each other in the axial direction, at least a pair of adjacent heat dissipation fins forming a gap in a height direction perpendicular to both the circumferential and axial directions, the gap allowing airflow from the circumferentially outward direction of the radiator toward the circumferentially inward direction of the radiator. According to this disclosure, the heat exchange area of ​​the radiator can be significantly increased within a limited space.

[0006] In some embodiments, the radiator is a liquid-cooled radiator, wherein each heat dissipation fin defines a conduit suitable for liquid flow.

[0007] In some embodiments, the radiator includes a liquid inlet end disposed at one end of the plurality of heat dissipation fins and a liquid outlet end disposed at the opposite end of the plurality of fins, wherein the liquid inlet end includes an inlet end pipe connecting the plurality of heat dissipation fins in parallel with each other, and the liquid outlet end includes an outlet end pipe connecting the plurality of heat dissipation fins in parallel with each other.

[0008] In some embodiments, the cooling system further includes a pump connected via a pipe to the inlet end pipe or the outlet end pipe to circulate liquid in the heat dissipation fins.

[0009] In some embodiments, the radiator further includes at least a straight section connected to the curved section.

[0010] In some embodiments, the radiator is approximately C-shaped when viewed from the axial direction of the fan.

[0011] In some embodiments, the plurality of heat dissipation fins include a first group of heat dissipation fins and a second group of heat dissipation fins arranged adjacent to each other in the circumferential direction, wherein one of the first group of heat dissipation fins and the second group of heat dissipation fins is located on the side radially adjacent to the fan, and the other of the first group of heat dissipation fins and the second group of heat dissipation fins is located on the side radially away from the fan.

[0012] In some embodiments, the first set of heat dissipation fins and the second set of heat dissipation fins are connected in fluid series so that liquid flows out of the radiator sequentially through the first set of heat dissipation fins and the second set of heat dissipation fins.

[0013] In some embodiments, the cooling system further includes a pipe connector that interconnects the outlet pipe of the first set of heat dissipation fins with the inlet pipe of the second set of heat dissipation fins.

[0014] In some embodiments, the first set of heat dissipation fins and the second set of heat dissipation fins are fluidly connected in parallel, such that liquid flows out of the radiator in parallel through the first set of heat dissipation fins and the second set of heat dissipation fins.

[0015] In some embodiments, the radiator further includes a pipe splitter that interconnects the inlet pipes of the first set of heat dissipation fins and the inlet pipes of the second set of heat dissipation fins, such that fluid from the main pipe is diverted to the inlet pipes of the first set of heat dissipation fins and the inlet pipes of the second set of heat dissipation fins via the pipe splitter; and the radiator further includes a pipe confluencer that interconnects the outlet pipes of the first set of heat dissipation fins and the outlet pipes of the second set of heat dissipation fins, such that fluid from the outlet pipes of the first set of heat dissipation fins and the outlet pipes of the second set of heat dissipation fins is merged into the main fluid pipe via the pipe confluencer.

[0016] In some embodiments, the cooling system further includes a frame defining a receiving cavity in which the at least one fan and the at least one radiator are received.

[0017] In some embodiments, the at least one fan includes a first fan and a second fan arranged side by side in a plane perpendicular to the axis, and the at least one heat sink includes a first heat sink for the first fan and a second heat sink for the second fan.

[0018] In some embodiments, the cooling system further includes a baffle located between the first fan and the second fan to fluidly isolate the first fan and the second fan from each other.

[0019] In some embodiments, the first radiator and the second radiator each include a surrounding section and an opening section, and the first radiator and the second radiator are arranged opposite to each other at the opening section.

[0020] A second aspect of this disclosure provides a charging station. The charging station includes: a power module; and a cooling system according to any one of the first aspects, configured to cool the power module. Attached Figure Description

[0021] The above and other objects, features, and advantages of embodiments of the present disclosure will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated in the drawings by way of example and not limitation.

[0022] Figure 1 A schematic diagram showing the construction of a charging pile according to an embodiment of the present disclosure is provided.

[0023] Figure 2 A schematic diagram of the internal components of a cooling system for a charging pile according to an embodiment of the present disclosure is shown.

[0024] Figure 3 A schematic diagram of a cooling system for a charging pile according to an embodiment of the present disclosure is shown, in which an airflow path is illustrated.

[0025] Figure 4 A perspective view of a radiator of a cooling system according to an embodiment of the present disclosure is shown.

[0026] Figure 5 A schematic diagram showing partial details of a radiator in a cooling system according to an embodiment of the present disclosure is provided.

[0027] Figure 6 A perspective view of a radiator and a fluid circulation loop of a cooling system according to another embodiment of the present disclosure is shown.

[0028] Figure 7 A perspective view of the radiator and fluid circulation loop of a cooling system according to yet another embodiment of the present disclosure is shown. Detailed Implementation

[0029] Unless otherwise specified, corresponding numbers and symbols in the different figures generally refer to corresponding areas. The figures are drawn to clearly illustrate relevant aspects of the embodiments and are not necessarily drawn to scale. The edges of features drawn in the figures do not necessarily indicate the termination of the feature range.

[0030] In the following description, various specific details are shown to provide a thorough understanding of various examples of embodiments according to the description. Embodiments may be obtained without one or more specific details, or by utilizing other methods, components, materials, etc. In other instances, known structures, materials, or operations are not shown or described in detail so as not to obscure the various aspects of the embodiments.

[0031] References to "an embodiment" or "an implementation" within the framework of this specification are intended to indicate that a particular configuration, structure, or feature described with respect to that embodiment is included in at least one embodiment. Therefore, phrases such as "in an embodiment," "in one embodiment," etc., that may appear in various aspects of this specification do not necessarily refer precisely to the same embodiment. Furthermore, specific configurations, structures, or features may be combined in any suitable manner in one or more embodiments.

[0032] In this disclosure, directional terms such as "upper," "lower," "top side," "bottom side," "front," "rear," "inner," and "outer" are defined relative to the indicated placement of components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and not to indicate or imply a specific orientation that the device or component must have, or its construction and operation in a specific orientation. They can change accordingly depending on the orientation of the components in the accompanying drawings, and therefore should not be construed as limiting this application. The inventive concept according to embodiments of this disclosure is described in detail below with reference to the accompanying drawings.

[0033] Figure 1 A schematic diagram illustrating the construction of a charging pile according to an embodiment of the present disclosure is shown. The charging pile is typically a freestanding device and is erected in an indoor or outdoor garage. The charging pile system includes the charging pile (also called the charging pile host) and one or more terminal units (not shown) electrically connected to the charging pile. The charging pile is generally in the form of a cabinet and may include a frame and a door mounted on the frame. Figure 1 The door is shown to be open. One or more power modules 200 are arranged inside the cabinet. These power modules 200 can, for example, convert AC power to DC power and supply the DC power to the terminal.

[0034] The terminal includes one or more charging guns, which can be connected to the charging connector of an electric vehicle to charge the vehicle. During charging pile operation, the power module 200 generates a significant amount of heat. If this heat is not dissipated from the cabinet quickly, it will affect the operation of the power module 200 within the cabinet and may even damage the power equipment. Therefore, the charging pile is also equipped with a cooling system 100.

[0035] like Figure 1 As shown, the cooling system 100 can be arranged adjacent to the power module 200. In the illustrated embodiment, the cooling system 100 is positioned above the power module 200. The cooling system can be arranged within a receiving cavity enclosed by the frame 130. The main heat exchange components of the cooling system, such as fans and radiators, can be arranged within the receiving cavity. The outer periphery of the receiving cavity can be provided with permeable components 140, such as filters or louvers, to allow airflow. It should be understood that the illustrated arrangement is merely exemplary. The cooling system can be arranged in other locations adjacent to the power module, such as to the side of the power module 200.

[0036] Given the size limitations of the charging pile cabinet, the dimensions for arranging the cooling system 100 are typically restricted. Improving cooling efficiency within a relatively limited space is one of the technical problems this disclosure aims to solve. It should be understood that, in the illustrated embodiment, the charging pile is used as an example of a heat source to illustrate the inventive concept of this disclosure; however, it should also be understood that the inventive concept of this disclosure can be applied to the cooling of other heat sources.

[0037] Figure 2 A schematic diagram of the internal components of a cooling system 100 for a charging pile according to an embodiment of the present disclosure is shown. Figure 3 A schematic diagram of a cooling system for a charging pile according to an embodiment of the present disclosure is shown, illustrating the airflow path. Figure 2 As shown, the cooling system 100 includes one or more fans 110 and one or more heat sinks 120 arranged around the fans 110. As an example, the fans may be axial fans. In the illustrated embodiment, two fans 110 and two heat sinks 120 are arranged in a charging cabinet. It should be understood that the number of fans and heat sinks can be other than those shown.

[0038] like Figure 3 As indicated by the arrow, fan 110 is configured to draw airflow radially outward during operation and discharge the drawn airflow axially. The axial direction may correspond to the direction in communication with a heat source. The radial outward of the fan corresponds to the external environment. Thus, fan 110 can radially draw in ambient air as a cool airflow, mix it with the axial airflow as a hot airflow, and then discharge it to the external environment along with the axial airflow.

[0039] The heat sink 120 is shaped to surround the fan 110. For example... Figure 2 As shown, the heat sink 120 may include a curved section 125, the shape of which is formed to at least partially follow the contour of the fan 110. Because the curved section 125 follows the contour of the fan 110, the heat dissipation area of ​​the heat sink can be maximized. During the process of airflow entering the fan from the radially outer side, the airflow will first come into contact with the heat sink 120 surrounding the fan, during which heat exchange will occur between the airflow and the heat sink 120. By increasing the area of ​​the heat sink surrounding the fan 110, the heat exchange efficiency can be significantly increased.

[0040] In some embodiments, such as Figure 3 As shown, since the heat sink 120 is shaped to surround the fan 110, this allows airflow to enter the cooling system from all four directions of the fan. This is also beneficial for improving heat dissipation efficiency. In some embodiments, such as Figure 2 As shown, each of the two heat sinks 120 includes a surrounding section and an opening section, and the two heat sinks 120 are arranged opposite each other at the opening section. In some embodiments, the heat sinks 120 are, for example, approximately C-shaped. This arrangement allows the heat sinks to be arranged in almost all directions around the fan. In some embodiments (not shown), a heat sink may be arranged close to a fan. In this case, the heat sink may be approximately annular.

[0041] In some embodiments, the cooling system 100 further includes a partition 150 located between the fans 110 and 110. The partition 150 isolates the cooling systems formed by the two fans, preventing them from interfering with each other. This allows a user to selectively shut down one fan without affecting the operation of adjacent systems, which is particularly useful when the power module 200 is not operating at full load.

[0042] Figure 4 A perspective view of a radiator in a cooling system according to an embodiment of the present disclosure is shown. Figure 4 As shown, the heat sink 120 may include one or more curved sections 125 and one or more straight sections 123. The curved sections 125 and straight sections are connected together to form a heat sink surrounding a fan. In the illustrated embodiment, three straight sections 123 and two curved sections 125 are shown. It should be understood that the number of these straight sections 123 and curved sections 125 is merely exemplary and may be any other number. In some other embodiments (not shown), the heat sink may consist entirely of curved sections 125.

[0043] Figure 5 A schematic diagram showing partial details of a radiator in a cooling system according to an embodiment of the present disclosure is provided. Figure 4 and Figure 5 As shown, the radiator 120 includes a plurality of heat dissipation fins 122 stacked on top of each other in the axial direction. A gap 121 is formed between adjacent pairs of heat dissipation fins 122 in a height direction perpendicular to both the circumferential and axial directions. The gap 121 allows airflow to flow from the circumferentially outer side of the radiator 120 toward the circumferentially inner side of the radiator 120. By providing the gap 121, airflow can smoothly flow from the radially outer side of the fan (corresponding to the circumferentially outer side of the radiator) to the radially inner side of the fan (corresponding to the circumferentially inner side of the radiator), during which time the airflow exchanges heat with the heat dissipation fins 122 of the radiator 120.

[0044] In some embodiments, the cooling system 100 is a fluid circulation cooling system. For example... Figure 2 As shown, the cooling system includes components such as a pump 160, pipes 162, and a water tank, in addition to the fan and radiator. The radiator can be a fluid circulation type radiator. In this case, each heat dissipation fin 122 defines a pipe suitable for liquid flow. The liquid used for heat exchange can circulate within the pipe to further increase heat exchange efficiency.

[0045] Further reference Figure 4 and Figure 5 The radiator 120 may include a liquid inlet end disposed at one end of a plurality of heat dissipation fins 122 and a liquid outlet end disposed at the opposite end of the plurality of fins. At the liquid inlet end, an inlet end pipe 124 may be provided to connect the plurality of heat dissipation fins 122 in parallel with each other, and at the liquid outlet end, an outlet end pipe 126 may be provided to connect the plurality of heat dissipation fins 122 in parallel with each other. Thus, cooling liquid can enter the radiator from the inlet end pipe 124, pass sequentially through the various sections of the radiator, and exit the radiator from the outlet end pipe 126. Pipe joints 164 may be provided at the inlet end pipe 124 and the outlet end pipe 126, and the pipe joints 164 may be connected to a pump 160 via pipes 162. When the pump 160 operates, the pump 160 circulates the liquid within the radiator.

[0046] In some embodiments, the cooling system further includes a temperature sensor disposed within a pipe, and the pump 160 is configured to operate based on the temperature sensed by the temperature sensor.

[0047] In some embodiments, the radiator can be configured in a multi-layered arrangement. This can further improve heat dissipation efficiency without requiring any additional changes to the pump. Figure 6 A perspective view of a radiator and a fluid circulation loop of a cooling system according to another embodiment of the present disclosure is shown. Figure 7 A perspective view of the radiator and fluid circulation loop of a cooling system according to yet another embodiment of the present disclosure is shown. Figure 6 and Figure 7The diagram shows the heatsink implemented as a two-layer arrangement. It should be understood that the heatsink can also be implemented with a configuration of two or more layers.

[0048] In some embodiments, such as Figure 6 and Figure 7 As shown, each heat sink 120 has multiple heat dissipation fins 122, including a first group of heat dissipation fins 120a and a second group of heat dissipation fins 120b arranged adjacent to each other in the circumferential direction. The first group of heat dissipation fins 120a is located on the side radially away from the fan, and the second group of heat dissipation fins 120b is located on the side radially closer to the fan. This double-layer arrangement can further enhance heat dissipation capacity within a limited space.

[0049] In some embodiments, such as Figure 6 As shown, the first set of heat dissipation fins 120a and the second set of heat dissipation fins 120b are connected in series. Thus, as... Figure 6 As indicated by the arrows, liquid flows out of the radiator 120 sequentially through the first set of heat dissipation fins 120a and the second set of heat dissipation fins 120b. The radiator 120 may include a pipe connector 165 that interconnects the outlet pipe 126a of the first set of heat dissipation fins 120a and the inlet pipe 124b of the second set of heat dissipation fins 120b. Thus, liquid flows sequentially through the first set of heat dissipation fins 120a and the second set of heat dissipation fins 120b.

[0050] In some embodiments, such as Figure 7 As shown, the first set of heat dissipation fins 120a and the second set of heat dissipation fins 120b are connected in parallel. Figure 7 As indicated by the arrows, liquid flows out of the radiator 120 in parallel via the first set of heat dissipation fins 120a and the second set of heat dissipation fins 120b. The radiator may include a pipe splitter 127 that interconnects the inlet pipes 124a of the first set of heat dissipation fins 120a and the inlet pipes 124b of the second set of heat dissipation fins. Fluid from the main pipe is split via the pipe splitter 127 to the inlet pipes 124a of the first set of heat dissipation fins 120a and the inlet pipes 124a of the second set of heat dissipation fins 120b. The radiator also includes a pipe confluencer 128 that interconnects the outlet pipes 126a of the first set of heat dissipation fins 120a and the outlet pipes 126b of the second set of heat dissipation fins 120b, such that fluid from the outlet pipes 126a of the first set of heat dissipation fins 120a and the outlet pipes 126b of the second set of heat dissipation fins 120b is combined via the pipe confluencer 128 into the main fluid pipe.

[0051] From the teachings given in the foregoing description and related drawings, many modifications and other embodiments of the present disclosure will become apparent to those skilled in the art. Therefore, it is to be understood that embodiments of the present disclosure are not limited to the specific embodiments disclosed, and modifications and other embodiments are intended to be included within the scope of this disclosure. Furthermore, although the foregoing description and related drawings have described exemplary embodiments in the context of certain example combinations of components and / or functions, it should be appreciated that different combinations of components and / or functions may be provided by alternative embodiments without departing from the scope of this disclosure. In this regard, for example, other combinations of components and / or functions that differ from those explicitly described above are also contemplated within the scope of this disclosure. Although specific terms are used herein, they are used in a general and descriptive sense only and are not intended to be limiting.

Claims

1. A cooling system (100), characterized in that, include: At least one fan (110) is configured to draw airflow from the radially outer side during operation and discharge the drawn airflow in the axial direction; as well as At least one heat sink (120), each heat sink (120) being arranged circumferentially surrounding a corresponding fan (110) of the at least one fan (110), wherein the heat sink (120) includes at least a curved section (125) that at least partially follows the contour of the corresponding fan (110); The radiator (120) includes a plurality of heat dissipation fins (122) stacked on top of each other in the axial direction, and at least one pair of adjacent heat dissipation fins (122) form a gap (121) in a height direction perpendicular to the circumferential and axial directions, the gap (121) allowing airflow to flow from the circumferential outer side of the radiator (120) toward the circumferential inner side of the radiator (120).

2. The system according to claim 1, characterized in that, The radiator (120) is a liquid-cooled radiator (120), wherein each heat dissipation fin (122) defines a conduit suitable for liquid flow.

3. The system according to claim 2, characterized in that, The radiator (120) includes a liquid inlet end disposed at one end of the plurality of heat dissipation fins (122) and a liquid outlet end disposed at the opposite end of the plurality of fins, wherein the liquid inlet end includes an inlet end pipe (124) that connects the plurality of heat dissipation fins (122) in parallel with each other, and the liquid outlet end includes an outlet end pipe (126) that connects the plurality of heat dissipation fins (122) in parallel with each other.

4. The system according to claim 3, characterized in that, The cooling system also includes a pump (160) connected to the inlet end pipe (124) or the outlet end pipe (126) via a pipe (162) to circulate the liquid in the heat dissipation fins (122).

5. The system according to claim 1, characterized in that, The radiator (120) also includes at least a straight section connected to the curved section (125).

6. The system according to claim 1, characterized in that, Viewed from the axial direction of the fan (110), the radiator (120) is approximately C-shaped.

7. The system according to any one of claims 1-6, characterized in that, The plurality of heat dissipation fins (122) include a first group of heat dissipation fins (120a) and a second group of heat dissipation fins (120b) arranged adjacent to each other in the circumferential direction, wherein one of the first group of heat dissipation fins (120a) and the second group of heat dissipation fins (120b) is located on the side radially adjacent to the fan, and the other of the first group of heat dissipation fins (120a) and the second group of heat dissipation fins (120b) is located on the side radially away from the fan.

8. The system according to claim 7, characterized in that, The first set of heat dissipation fins (120a) and the second set of heat dissipation fins (120b) are connected in series so that liquid flows out of the radiator (120) sequentially through the first set of heat dissipation fins (120a) and the second set of heat dissipation fins (120b).

9. The system according to claim 8, characterized in that, It also includes a pipe connector that interconnects the outlet pipe (126a) of the first set of heat dissipation fins (120a) with the inlet pipe (124b) of the second set of heat dissipation fins (120b).

10. The system according to claim 7, characterized in that, The first set of heat dissipation fins (120a) and the second set of heat dissipation fins (120b) are fluidly connected in parallel so that liquid flows out of the radiator (120) in parallel via the first set of heat dissipation fins (120a) and the second set of heat dissipation fins (120b).

11. The system according to claim 7, characterized in that, The radiator further includes a pipe splitter (127) that interconnects the inlet pipe (124a) of the first set of heat dissipation fins (120a) and the inlet pipe (124b) of the second set of heat dissipation fins (120b), so that fluid from the main pipe is diverted via the pipe splitter (127) to the inlet pipe (124a) of the first set of heat dissipation fins (120a) and the inlet pipe (124a) of the second set of heat dissipation fins (120b); and The radiator further includes a pipe confluencer (128) that interconnects the outlet pipe (126a) of the first set of heat dissipation fins (120a) and the outlet pipe (126b) of the second set of heat dissipation fins (120b) so that the fluid from the outlet pipe (126a) of the first set of heat dissipation fins (120a) and the outlet pipe (126b) of the second set of heat dissipation fins (120b) is merged into the main fluid pipe via the pipe confluencer (128).

12. The system according to any one of claims 1-6 and 8-11, characterized in that, It also includes a frame (130) that defines a receiving cavity in which the at least one fan (110) and the at least one heat sink (120) are received.

13. The system according to any one of claims 1-6 and 8-11, characterized in that, The at least one fan (110) includes a first fan and a second fan arranged side by side in a plane perpendicular to the axis, and the at least one heat sink (120) includes a first heat sink (120) for the first fan and a second heat sink (120) for the second fan.

14. The system according to claim 13, characterized in that, It also includes a partition (150) located between the first fan and the second fan to fluidly isolate the first fan and the second fan from each other.

15. The system according to claim 14, characterized in that, The first radiator (120) and the second radiator (120) each include a surrounding section and an opening section, and the first radiator (120) and the second radiator (120) are arranged opposite to each other at the opening section.

16. A charging pile, characterized in that, include: Power module (200); as well as The cooling system (100) according to any one of claims 1-15 is configured to cool the power module (200).

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