Heat dissipation system and charging pile

Abstract

Provided in the embodiments of the present application are a heat dissipation system and a charging pile. The heat dissipation system comprises a heat dissipation device and a charging device. The heat dissipation device comprises a heat exchanger, and the heat exchanger has a cooling liquid channel and a heat-exchange liquid channel. Each of a cooling liquid inlet and a cooling liquid outlet of the cooling liquid channel is in communication with a charging main body, such that cooling liquid in the charging main body circulates through the cooling liquid channel. Each of a heat-exchange liquid inlet and a heat-exchange liquid outlet of the heat-exchange liquid channel is used for communication with an external cooling device, such that heat-exchange liquid in the external cooling device circulates through the heat-exchange liquid channel. The heat-exchange liquid flowing through the heat-exchange liquid channel is used for cooling the cooling liquid flowing through the cooling liquid channel. The technical solution provided in the embodiments of the present application can improve the heat dissipation effect of the charging device, helping to meet growing heat dissipation demands of the charging device.

Description

Cooling system and charging pile

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on October 13, 2023, with application number 202311333219.9, and priority to the Chinese patent application with the invention name “Heat Dissipation System and Charging Pile”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of heat dissipation of charging equipment, and more specifically, to a heat dissipation system and a charging pile. Background Art

[0003] With the rapid adoption of electric vehicles, charging equipment, as a supporting infrastructure, is becoming increasingly widespread. Due to the rapidly growing demand for charging power, charging equipment is also developing towards higher power. However, as charging power increases, the heat generated by the electronic components within the equipment also increases. If this heat cannot be effectively dissipated, it can shorten the service life of the electronic components and, in severe cases, pose safety risks such as fire and explosion.

[0004] Currently, air cooling is commonly used to dissipate heat from electronic components inside charging devices. However, this cooling method has problems such as high noise and increased failure rate of electronic components, and cannot effectively meet the growing heat dissipation needs of charging devices.

[0005] Summary of the Invention

[0006] The present application provides a heat dissipation system and a charging pile. The heat dissipation system includes a heat dissipation device and a charging device. The heat dissipation device can improve the heat dissipation effect of the charging device, which is conducive to meeting the growing heat dissipation needs of the charging device.

[0007] In a first aspect, a heat dissipation system is provided, comprising a charging device and a heat dissipation device, wherein the heat dissipation device comprises a heat exchanger. The heat exchanger comprises a coolant channel and a heat exchange liquid channel. The coolant channel comprises a coolant inlet and a coolant outlet, each of which is connected to the charging device, and the coolant channel is used to circulate coolant in the charging device. The heat exchange liquid channel comprises a heat exchange liquid inlet and a heat exchange liquid outlet, each of which is connected to an external cooling device, and the heat exchange liquid channel is used to circulate heat exchange liquid in the external cooling device. The heat exchange liquid circulating in the heat exchange liquid channel is used to exchange heat with the coolant circulating in the coolant channel to cool the coolant.

[0008] It is understandable that the coolant in the charging device is used to absorb the heat generated by the electronic components in the charging device during operation, so as to dissipate the heat of the electronic components.

[0009] It can also be understood that the cooling liquid channel and the heat exchange liquid channel of the heat exchanger can be independent of each other and can realize heat exchange.

[0010] In an embodiment of the present application, the coolant inlet and the coolant outlet of the coolant channel of the heat exchanger are respectively connected to the charging device to form a coolant circulation loop between the charging device and the heat dissipation device. After absorbing the heat of the electronic device, the coolant in the charging device can flow out of the charging device and flow into the coolant channel of the heat exchanger through the coolant inlet, thereby bringing the heat in the charging device to the outside of the charging device, thereby achieving liquid cooling and heat dissipation of the charging device. Furthermore, the heat exchanger can transfer the heat absorbed by the coolant to the heat exchange liquid in the heat exchange liquid channel in a heat exchange manner, that is, use liquid-liquid heat exchange to dissipate the heat of the coolant in the coolant channel. The cooled coolant flows out from the coolant outlet and flows into the charging device again, thereby circulating and dissipating heat for the electronic devices in the charging device.

[0011] In the above technical solution, liquid cooling is used to dissipate heat from the charging device, which can avoid the problem of dust and other impurities accumulating on the surface of electronic devices due to air cooling, thereby affecting the reliability and service life of the electronic devices, and is conducive to improving the heat dissipation effect of the charging device. In addition, the liquid cooling method can avoid the noise problem caused by the use of fans, thereby improving the user experience. In addition, the heat dissipation device uses liquid-liquid heat exchange to dissipate the coolant with high efficiency, which is conducive to further improving the heat dissipation effect of the coolant on the charging device to meet the growing heat dissipation needs of the charging device. In addition, the heat dissipation device using liquid-liquid heat exchange is not only smaller in size, which is conducive to reducing the overall height of the heat dissipation device and the charging device, and reducing the difficulty of transportation and installation; it is also more conducive to meeting the installation requirements of the charging device in different scenarios, such as wall installation.

[0012] Furthermore, by connecting the heat exchanger's heat exchange fluid inlet and outlet to an external cooling device, a heat exchange fluid circulation loop can be formed between the heat sink and the external cooling device, allowing the external cooling device to supply heat exchange fluid to the heat exchanger for heat exchange. This eliminates the need for a separate heat exchange fluid supply structure within the heat sink, further reducing the size of the heat sink.

[0013] In conjunction with the first aspect, in certain implementations of the first aspect, the heat exchanger further includes an air cooling channel, the air cooling channel including an air inlet and an air outlet, the air inlet and the air outlet respectively communicating with an external environment, the air cooling channel being configured to allow air from the external environment to circulate. The air flowing through the air cooling channel is configured to exchange heat with coolant flowing through the coolant flow channel to cool the coolant.

[0014] In the above technical solution, by providing an air-cooling channel connected to the external environment in the heat exchanger, the heat exchanger can also transfer the heat carried by the coolant in the coolant flow channel to the gas in the air-cooling channel through heat exchange. In other words, the heat dissipation device can also use air-to-liquid heat exchange to dissipate heat from the coolant flowing out of the charging device. In this way, the heat dissipation device can use air-to-liquid heat exchange to dissipate heat from the coolant flowing out of the charging device when not connected to an external cooling device; and use liquid-to-liquid heat exchange to dissipate heat from the coolant flowing out of the charging device when connected to an external cooling device. This allows the heat dissipation device to dissipate heat from the coolant in the charging device in different scenarios. Furthermore, the heat dissipation device can also use both liquid-to-liquid heat exchange and air-to-liquid heat exchange to dissipate heat from the coolant flowing out of the charging device, further improving the heat dissipation efficiency of the heat dissipation device, thereby facilitating improved heat dissipation from the coolant to the charging device.

[0015] In conjunction with the first aspect, in certain implementations of the first aspect, the heat dissipation device further includes a heat exchange inlet pipe and a heat exchange outlet pipe, and the external cooling device includes a cooling water circulation assembly of the air conditioning system. The heat exchange fluid outlet is configured to communicate with the cooling water circulation assembly via the heat exchange outlet pipe, so that heat exchanged heat exchange fluid in the heat exchange fluid channel is transferred to the cooling water circulation assembly via the heat exchange outlet pipe and cooled by the cooling water circulation assembly. The heat exchange fluid inlet is configured to communicate with the cooling water circulation assembly via the heat exchange inlet pipe, so that cooled heat exchange fluid in the cooling water circulation assembly is transferred to the heat exchange fluid channel via the heat exchange inlet pipe.

[0016] The heat exchange fluid may be cooling water circulating in a cooling water circulation component of an air-conditioning system.

[0017] It is understood that the cooling water circulation assembly of the air conditioning system can be the cooling water circulation assembly of the air conditioning system in the building where the charging device is located, such as the cooling water circulation assembly of a central air conditioning system. In a specific implementation, the heat exchanged heat exchange fluid in the heat exchange fluid channel is transferred via the heat exchange outlet pipe to the cooling water circulation assembly, where it is cooled by the cooling water circulation assembly, for example, by a cooling tower within the cooling water circulation assembly. The cooled heat exchange fluid is then transferred from the cooling water circulation assembly to the heat exchange fluid channel via the heat exchange inlet pipe, thereby circulating and dissipating heat from the coolant in the cooling fluid channel.

[0018] In the above technical solution, the heat dissipation device can directly utilize the cooling water circulation components of the air conditioning system in the building where the charging device is located to dissipate heat from the heat exchange fluid in the heat exchange fluid channel. This eliminates the need for a separate heat dissipation structure within the heat dissipation device, reducing the size and production cost of the heat dissipation device and improving resource utilization of the air conditioning system in the building where the charging device is located.

[0019] In conjunction with the first aspect, in certain implementations of the first aspect, the heat dissipation device further includes a heat exchange inlet pipe and a heat exchange outlet pipe, and the external cooling device includes a chilled water circulation assembly of the air conditioning system. The heat exchange fluid outlet is configured to communicate with the chilled water circulation assembly via the heat exchange outlet pipe, so that heat exchanged heat exchange fluid in the heat exchange fluid channel is transferred to the chilled water circulation assembly via the heat exchange outlet pipe and cooled by the chilled water circulation assembly. The heat exchange fluid inlet is configured to communicate with the chilled water circulation assembly via the heat exchange inlet pipe, so that cooled heat exchange fluid in the chilled water circulation assembly is transferred to the heat exchange fluid channel via the heat exchange inlet pipe.

[0020] The heat exchange fluid may be chilled water circulating in a chilled water circulation component of an air-conditioning system.

[0021] It is understood that the chilled water circulation assembly of the air conditioning system can be the chilled water circulation assembly of the air conditioning system in the building where the charging device is located, such as the chilled water circulation assembly of a central air conditioning system. In a specific implementation, the heat exchanged heat exchange fluid in the heat exchange fluid channel is transferred via the heat exchange outlet pipe to the chilled water circulation assembly, where it is cooled by the chilled water circulation assembly, for example, by the evaporator in the chilled water circulation assembly. The cooled heat exchange fluid is then transferred from the chilled water circulation assembly to the heat exchange fluid channel via the heat exchange inlet pipe, thereby circulating heat away from the coolant in the coolant channel.

[0022] In the above technical solution, the heat dissipation device can directly utilize the chilled water circulation components of the air conditioning system in the building where the charging device is located to dissipate heat from the heat exchange fluid in the heat exchange fluid channel. This eliminates the need for a separate heat dissipation structure within the heat dissipation device, reducing the size and production cost of the heat dissipation device and improving resource utilization of the air conditioning system in the building where the heat dissipation system is located.

[0023] In conjunction with the first aspect, in certain implementations of the first aspect, the heat dissipation device further includes a heat exchange inlet pipe and a heat exchange outlet pipe, and the external cooling device includes a dry cooler. The heat exchange fluid outlet is configured to communicate with the dry cooler via the heat exchange outlet pipe, so that heat exchanged heat exchange fluid in the heat exchange fluid channel is transferred to the dry cooler via the heat exchange outlet pipe and cooled by the dry cooler. The heat exchange fluid inlet is configured to communicate with the dry cooler via the heat exchange inlet pipe, so that cooled heat exchange fluid in the dry cooler is transferred to the heat exchange fluid channel via the heat exchange inlet pipe.

[0024] In the above technical solution, the heat sink utilizes external air to cool the heat exchange fluid via a connected dry cooler. In other words, the heat sink utilizes a natural cooling mode to cool the heat exchange fluid in the heat exchange fluid channel. This eliminates the need for a separate structure within the heat sink to dissipate heat from the heat exchange fluid, reducing the size and production costs of the heat sink. Furthermore, utilizing natural cooling mode allows the heat exchange fluid to be dissipated with lower power consumption, thereby reducing energy consumption and further saving costs.

[0025] In conjunction with the first aspect, in certain implementations of the first aspect, the heat dissipation device further includes a heat exchange inlet pipe and a heat exchange outlet pipe, and the cooling device includes a heat recovery pipeline and a tap water pipeline. The heat exchange fluid outlet is configured to communicate with the heat recovery pipeline via the heat exchange outlet pipe, so that heat exchanged heat exchange fluid in the heat exchange fluid channel is transferred to the heat recovery pipeline via the heat exchange outlet pipe. The heat exchange fluid inlet is configured to communicate with the tap water pipeline via the heat exchange inlet pipe, so that heat exchange fluid in the tap water pipeline is transferred to the heat exchange fluid channel via the heat exchange inlet pipe.

[0026] The heat exchange fluid may be tap water flowing in the water pipeline.

[0027] In the above technical solution, the heat dissipation device can directly utilize the tap water pipeline of the building where the charging device is located to continuously supply heat exchange fluid to the heat exchange fluid channel, and then recover the heat exchanged heat exchange fluid in the heat exchange fluid channel through the heat recovery pipeline. This eliminates the need for a separate structure to dissipate heat from the heat exchange fluid in the heat exchange fluid channel, which helps reduce the size and production cost of the heat dissipation device. Furthermore, the heat contained in the heat exchange fluid recovered by the heat recovery pipeline can be converted into useful energy for other production processes, heating, or power supply, which helps improve resource utilization.

[0028] In conjunction with the first aspect, in certain implementations of the first aspect, the heat dissipation device further includes a water tank and a water pump, wherein the coolant outlet, the water tank, the water pump, and the charging device are sequentially connected. The water tank is configured to store cooled coolant flowing out of the coolant outlet. The water pump is configured to drive the cooled coolant in the water tank to be transferred to the charging device, so that the cooled coolant dissipates heat from the charging device.

[0029] In the above technical solution, the coolant flowing out of the coolant channel can be stored in a water tank. In actual application, the flow rate of the coolant transmitted from the water tank to the charging device is adjusted by a water pump to meet the heat dissipation requirements of the charging device.

[0030] In combination with the first aspect, in certain implementations of the first aspect, the heat dissipation device further includes a box body, the water tank, the water pump and the heat exchanger are all accommodated in the box body, and the box body is detachably connected to the top of the charging device.

[0031] In the above technical solution, the various structures in the heat dissipation device are integrated into the box, so that the heat dissipation device is modularized, thereby facilitating the transportation of the heat dissipation device and the installation with the charging device.

[0032] In a second aspect, a charging pile is provided, comprising a heat dissipation system and at least one charging terminal. The heat dissipation system includes a charging device and a heat dissipation device. The charging device is electrically connected to the at least one charging terminal and is configured to output power to the at least one charging terminal. The heat dissipation device includes a heat exchanger, the heat exchanger including a coolant channel and a heat exchange channel. The coolant channel includes a coolant inlet and a coolant outlet, each of which is connected to the charging device. The coolant channel is configured to circulate coolant in the charging device. The heat exchange channel includes a heat exchange channel inlet and a heat exchange channel outlet, each of which is connected to an external cooling device. The heat exchange channel is configured to circulate heat exchange fluid in the external cooling device. The heat exchange fluid flowing in the heat exchange channel is configured to exchange heat with the coolant flowing in the coolant channel to cool the coolant.

[0033] In conjunction with the second aspect, in certain implementations of the second aspect, the radiator further includes an air cooling channel. The air cooling channel includes an air inlet and an air outlet, each of which is connected to the external environment. The air cooling channel is configured to allow air from the external environment to circulate. The air flowing through the air cooling channel is configured to exchange heat with the coolant flowing through the coolant flow channel to cool the coolant.

[0034] For the beneficial effects of the second aspect, please refer to the beneficial effects of the first aspect mentioned above, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic structural diagram of a charging system provided in an embodiment of the present application.

[0036] FIG2 is a schematic structural diagram of a heat dissipation system provided in an embodiment of the present application.

[0037] FIG3 is a schematic structural diagram of a power conversion device provided in an embodiment of the present application.

[0038] FIG4 is a schematic structural diagram of another heat dissipation system provided in an embodiment of the present application.

[0039] FIG5 is a schematic structural diagram of a heat exchanger provided in an embodiment of the present application.

[0040] FIG6 is a schematic structural diagram of an air-conditioning system provided in an embodiment of the present application.

[0041] FIG7 is a schematic diagram of an architecture in which a heat dissipation device and an external cooling device are connected, according to an embodiment of the present application.

[0042] FIG8 is a schematic diagram of an architecture in which a heat dissipation device and an external cooling device are connected, according to an embodiment of the present application.

[0043] FIG9 is a schematic diagram of an architecture in which another heat dissipation device and an external cooling device are connected, according to an embodiment of the present application.

[0044] FIG10 is a schematic diagram of an architecture in which another heat dissipation device and an external cooling device are connected, provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] To facilitate understanding of the embodiments of the present application, the following points are explained before introducing the embodiments of the present application.

[0046] In the description of the embodiments of this application, "electrical connection" can be understood as the transmission of signals between two electrical components through direct or indirect electrical connection. For example, "A and B are electrically connected" can be understood as a direct electrical connection between A and B, or it can be understood as an indirect electrical connection between A and B through one or more other electrical components.

[0047] In the description of the embodiments of the present application, unless otherwise specified, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0048] The technical solution in this application will be described below with reference to the accompanying drawings.

[0049] First, to facilitate understanding of the technical solutions provided by the embodiments of the present application, the application scenarios to which the embodiments of the present application are applicable are introduced below.

[0050] (a) and (b) in FIG1 are schematic structural diagrams of a charging system 10 provided in an embodiment of the present application, each having a split-type charging pile and an integrated charging pile.

[0051] In combination with (a) and (b) in Figure 1, the charging system 10 may include a charging pile 11 and an electric vehicle 12. The charging pile 11 can be used to receive alternating current output by an external power grid 20, and convert the alternating current into stable direct current and then transmit it to the electric vehicle 12 to charge the electric vehicle 12.

[0052] In some embodiments, as shown in FIG1( a ), the charging station 11 may be a split-type charging station. The charging station 11 may include a charging device 111 , at least one charging terminal 112 , and at least one charging gun 113 . The charging device 111 is electrically connected to each charging terminal 112 , and each charging terminal 112 may be electrically connected to the electric vehicle 12 via a charging gun 113 .

[0053] The charging device 111 may include multiple power conversion devices that can convert AC power from the external power grid 20 into stable DC power and transmit it to the charging terminal 112. The charging terminal 112 transmits the stable DC power to the electric vehicle 12 via the charging gun 113 to charge the electric vehicle 12. The multiple power conversion devices may include, for example, an alternating current-direct current (AC-DC) converter and a direct current-direct current (DC-DC) converter.

[0054] The charging terminal 112 may include a housing, a human-machine interface, a charging control unit, a metering and billing unit, etc., and is used to perform information exchange, energy transmission, metering and billing, etc. with the electric vehicle 12.

[0055] The electric vehicle 12 may be a vehicle powered by electricity. The electric vehicle 12 may be a pure electric vehicle (pure EV / battery EV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), or a plug-in hybrid electric vehicle (PHEV).

[0056] In other embodiments, as shown in FIG1( b ), the charging pile 11 may be an integrated charging pile. The charging pile 11 may include only a charging device 111 and at least one charging gun 113 electrically connected to the charging device 111, without including a charging terminal 112. The human-machine interface, charging control unit, and metering and billing unit may be directly incorporated into the charging device 111. The multiple power conversion devices within the charging device 111 may convert AC power from the external power grid 20 into stable DC power, which is then directly delivered to the electric vehicle 12 via the charging gun 113.

[0057] In practical applications, the power conversion device in the charging device 111 typically includes transistors, transformers, capacitors, and inductors to achieve power conversion. As described in the background technology section above, with the rapid growth in charging power demand for electric vehicles 12, the charging device 111 is also developing in the direction of high power. This increase in power means that these electronic components generate more heat during operation. If this heat cannot be removed in a timely manner, it will affect the normal operation of the charging device 111.

[0058] The current charging device 111 mostly uses air cooling to dissipate heat from electronic devices. In the charging device 111 that uses air cooling, a fan is generally used to generate airflow, which is quickly passed through the surface of the electronic device to remove the heat from the electronic device. However, this heat dissipation method easily causes dust and other impurities to accumulate on the surface of the electronic device, affecting the reliability and service life of the electronic device, resulting in an increase in the failure rate of the electronic device, thereby affecting the normal operation of the charging device 111. In addition, the noise generated by the fan when running at high speed is also relatively loud, affecting the user's charging experience. Therefore, the traditional air cooling method can no longer meet the growing heat dissipation needs of the charging device 111.

[0059] Based on the above content, an embodiment of the present application provides a heat dissipation system and a charging pile. The heat dissipation system includes a heat dissipation device and a charging device. The heat dissipation device can improve the heat dissipation effect of the charging device, which is conducive to meeting the growing heat dissipation needs of the charging device.

[0060] FIG2 is a schematic structural diagram of a heat dissipation system 200 provided in an embodiment of the present application.

[0061] 2 , the heat dissipation system 200 may include a charging device 210 and a heat dissipation device 220. It should be understood that the charging device 210 may be the charging device 111 shown in FIG. 1 (a) or the integrated charging pile 11 consisting of the charging device 111 and the charging gun 113 shown in FIG. 1 (b).

[0062] A coolant is circulated within the charging device 210 to absorb heat generated by the electronic components within the charging device 210 during operation, thereby cooling the electronic components. For example, the coolant can cool the electronic components within the power conversion device within the charging device 210.

[0063] Specifically, in some embodiments, the charging device 210 may include a chassis 211, multiple power conversion devices 212, a liquid inlet pipe 213, and a liquid outlet pipe 214. The multiple power conversion devices 212 are stacked within the chassis 211, and each power conversion device 212 includes a liquid inlet and a liquid outlet. The liquid inlet of each power conversion device 212 is respectively connected to the liquid inlet pipe 213, and the liquid outlet of each power conversion device 212 is respectively connected to the liquid outlet pipe 214. The liquid inlet pipe 213 and the liquid outlet pipe 214 are respectively connected to the heat sink 220, thereby forming a coolant circulation loop between the charging device 210 and the heat sink 220.

[0064] In one example, the heat sink 220 can be mounted on top of the chassis 211. The top of the chassis 211 is provided with a liquid inlet and a liquid outlet. One end of the liquid inlet pipe 213 and the liquid outlet pipe 214 can pass through the liquid inlet and outlet holes, respectively, and communicate with the heat sink 220. It will be appreciated that to prevent air from entering the charging device 210 and affecting its operation, the liquid inlet pipe 213 and the liquid outlet pipe 214 can be sealed to the liquid inlet and outlet holes, respectively.

[0065] In a specific implementation, the coolant in the liquid inlet pipe 213 can flow into each power conversion device 212 through the liquid inlet of the power conversion device 212, absorbing heat generated by the electronic components within the power conversion device 212 during operation. The heat-absorbing coolant then flows through the liquid outlet of the power conversion device 212 into the liquid outlet pipe 214, and then flows from the charging device 210 through the liquid outlet pipe 214 into the heat sink 220. This transfers the heat generated by the electronic components within the power conversion device 212 to the heat sink 220, achieving liquid cooling of the charging device 210.

[0066] Furthermore, the heat sink 220 can cool the coolant flowing out of the charging device 210 through heat exchange, and transmit the cooled coolant to the power conversion device 212 through the liquid inlet pipe 213, so that the coolant circulates and dissipates heat from the electronic components within the power conversion device 212. The specific implementation of the heat sink 220 dissipating heat from the coolant flowing out of the charging device 210 through heat exchange will be described in detail below and will not be repeated here.

[0067] In the above embodiment, the flow direction of the coolant in the heat dissipation system 200 can be: power conversion device 212 - liquid outlet of the power conversion device 212 - liquid outlet pipe 214 - heat dissipation device 220 - liquid inlet pipe 213 - liquid inlet of the power conversion device 212 - power conversion device 212, thereby realizing the cooling circulation of the coolant and playing the role of liquid cooling and heat dissipation of the power conversion device 212.

[0068] FIG3 exemplarily shows a schematic structural diagram of a power conversion device 212 that uses a coolant for liquid cooling and heat dissipation.

[0069] 2 and 3 , the power conversion device 212 may include a housing 2121, a liquid cooling plate 2122, and a circuit board assembly 2123. The circuit board assembly 2123 may be an assembly formed by integrating various electronic components such as transistors, transformers, and inductors within the power conversion device 212 on a circuit board.

[0070] Among them, the housing 2121 and the liquid cooling plate 2122 can enclose a receiving cavity, and the circuit board assembly 2123 is arranged in the receiving cavity and is thermally connected to the liquid cooling plate 2122. The heat of the circuit board assembly 2123 can be transferred to the liquid cooling plate 2122 by heat conduction. A flow channel 21221 is provided in the liquid cooling plate 2122. The left and right ports of the flow channel 21221 as shown in Figure 3 can serve as the liquid inlet and liquid outlet of the power conversion device 212, and are respectively connected to the liquid inlet pipe 213 and the liquid outlet pipe 214. In this way, the coolant can circulate in the flow channel 21221 to take away the heat of the liquid cooling plate 2122, thereby achieving heat dissipation of the power conversion device 212.

[0071] It is understandable that the structure of the power conversion device 212 using coolant for liquid cooling is merely illustrative. In the embodiment of the present application, as long as the structure of the power conversion device 212 enables the coolant to dissipate heat from the electronic components inside it, it will suffice.

[0072] It should also be understood that the aforementioned use of the coolant to cool the power conversion device 212 within the charging device 210 is merely illustrative; depending on actual production and design requirements, the coolant may also cool other electronic components within the charging device 210. For example, the coolant may also cool electronic components within the charging gun of the charging device 210. For ease of description and understanding, the present embodiment of the application uses the use of the coolant to cool the power conversion device 212 within the charging device 210 as an example.

[0073] In the above technical solution, liquid cooling is used to dissipate heat from the charging device 210. Compared to air cooling, liquid cooling can avoid the problem of dust and other impurities accumulating on the surface of electronic components, which can affect their reliability and service life. This improves the heat dissipation of the charging device 210 and meets the ever-increasing heat dissipation requirements of the charging device 210. Liquid cooling also avoids noise issues caused by the use of fans, improving the user experience.

[0074] In some embodiments, referring again to FIG2 , a control valve 215 may be further provided on the pipeline between the liquid inlet of each power conversion device 212 and the liquid inlet pipe 213, and on the pipeline between the liquid outlet of each power conversion device 212 and the liquid outlet pipe 214. The control valve 215 may be used to control the flow rate of the coolant flowing from the liquid inlet pipe 213 into the liquid inlet of the power conversion device 212, and may also be used to control the flow rate of the coolant flowing from the liquid outlet of the power conversion device 212 into the liquid outlet pipe 214.

[0075] In some embodiments, referring again to FIG. 2 , the charging device 210 may further include a partition 216 located within the chassis 211 and separating the interior of the chassis 211 into a power distribution area 2111 and a charging area 2112. The power distribution area 2111 may be used to house power distribution equipment 217, such as circuit breakers and overload protection circuits. The charging area 2112 may be used to house multiple power conversion devices 212, liquid inlet pipes 213, and liquid outlet pipes 214. In other embodiments, the power distribution equipment 217 may also be integrated into a cabinet outside of the charging device 210.

[0076] 2 , the heat dissipation device 220 in the heat dissipation system 200 will be described in detail.

[0077] 2 , the heat dissipation device 220 may include a heat exchanger 221, which includes a coolant channel 2211 and a heat exchange channel 2212. The coolant channel 2211 includes a coolant inlet 2211a and a coolant outlet 2211b. The coolant inlet 2211a and the coolant outlet 2211b are respectively connected to the charging device 210, and the coolant channel 2211 is used to circulate coolant in the charging device 210. The heat exchange channel 2212 includes a heat exchange inlet 2212a and a heat exchange outlet 2212b. The heat exchange inlet 2212a and the heat exchange outlet 2212b can be respectively used to communicate with the external cooling device 300, and the heat exchange channel 2212 is used to circulate heat exchange liquid in the external cooling device 300. The heat exchange liquid flowing in the heat exchange liquid channel 2212 can be used to perform heat exchange with the coolant flowing in the coolant channel 2211 to cool the coolant in the coolant channel 2211 .

[0078] It is understood that the external cooling device 300 may refer to a cooling device located outside the heat dissipation system 200 and capable of providing heat exchange fluid to the heat exchange fluid channel 2212. The heat exchange fluid may be, for example, chilled water, coolant, or tap water. The external cooling device 300 will be further described below and will not be further elaborated here.

[0079] In a specific implementation, the coolant inlet 2211a can be connected to the liquid outlet pipe 214 in the charging device 210, and the coolant outlet 2211b can be connected to the liquid inlet pipe 213 in the charging device 210. When the charging device 210 is operating, the heat generated by the electronic components in the power conversion device 212 is absorbed by the coolant. The heat-absorbing coolant flows into the coolant channel 2211 through the liquid outlet of the power conversion device 212, the liquid outlet pipe 214, and the coolant inlet 2211a. The heat exchanger 221 can transfer the heat absorbed by the coolant in the coolant channel 2211 to the heat exchange liquid in the heat exchange liquid channel 2212 through heat exchange, thereby cooling the coolant. In other words, the heat dissipation device 220 uses liquid-to-liquid heat exchange to dissipate heat from the coolant in the coolant channel 2211.

[0080] Afterwards, the cooled coolant flows through the coolant outlet 2211b, the liquid inlet pipe 213, and the inlet of the power conversion device 212 into each power conversion device 212, continuing to circulate and dissipate heat for the electronic components within the power conversion device 212. After heat exchange, the heat exchange liquid in the heat exchange liquid channel 2212 can flow through the heat exchange liquid outlet 2212b into the external cooling device 300, allowing the external cooling device 300 to cool the heat exchange liquid after the heat exchange. The cooled heat exchange liquid then flows from the external cooling device 300 into the heat exchange liquid channel 2212 through the heat exchange liquid inlet 2212a, completing the cooling cycle of the heat exchange liquid.

[0081] For example, heat exchanger 221 can be a plate heat exchanger. A plate heat exchanger is constructed from a series of corrugated metal sheets stacked together, with each sheet forming independent coolant channels 2211 and heat exchange channels 2212. In practice, heat from the coolant in coolant channel 2211 can be transferred through the metal sheets to the heat exchange fluid in heat exchange channel 2212, thereby cooling the coolant in coolant channel 2211.

[0082] It can be understood that the structure of the above-mentioned heat exchanger 221 is only an example. In the embodiment of the present application, as long as the structure of the heat exchanger 221 can provide a cooling liquid channel 2211 and a heat exchange liquid channel 2212, and the heat exchange liquid flowing in the heat exchange liquid channel 2212 can perform heat exchange with the cooling liquid flowing in the cooling liquid channel 2211, it will be sufficient.

[0083] It is also understood that when the heat sink 220 is mounted on top of the chassis 211 of the charging device 210, if the heat sink 220 uses air cooling to dissipate heat from the coolant flowing out of the charging device 210, the cool air will typically be exhausted from the top of the heat sink 220 after absorbing the heat from the coolant. However, an increasing number of charging devices 210 are being installed in underground garages within residential, commercial, and office buildings. This hot cool air is easily obstructed by the roof of the underground garage when it is exhausted from the heat sink, causing heat backflow, increasing the temperature around the heat sink 220, and reducing the heat dissipation efficiency of the heat sink 220, thereby reducing the cooling effect of the coolant on the charging device 210. Furthermore, to avoid taking up too much space, the charging device 210 is often installed against a wall in underground garages. However, cold air generally enters the heat sink 220 from a horizontal direction as shown in FIG2 . If the charging device 210 is installed against a wall, the cold air will be blocked from entering the heat sink 220 , resulting in a decrease in the heat dissipation efficiency of the heat sink 220 for the coolant. Therefore, the installation position of the charging device 210 is easily restricted by the position of the cold air inlet of the heat sink 220 .

[0084] In the embodiment of the present application, when the charging device 210 uses liquid cooling for heat dissipation, the heat sink 220 can use liquid-to-liquid heat exchange to dissipate the coolant flowing out of the charging device 210. Compared to air cooling, the liquid-to-liquid heat exchange method can avoid the problem of reduced cooling efficiency of the heat sink 220 due to heat backflow. The heat sink 220 has a higher efficiency in cooling the coolant, which helps further improve the cooling effect of the coolant on the charging device 210, thereby meeting the increasing heat dissipation requirements of the charging device 210.

[0085] Furthermore, since the heat sink 220 employs liquid-to-liquid heat exchange, it eliminates the need for a fan. This reduces the overall height of the heat sink 220 and the charging unit 210, making transport and installation easier. Furthermore, since the heat sink 200 does not require a cold air inlet, the charging unit 210 can be installed in any desired location, facilitating installation of the heat sink 220 in various scenarios, such as wall-mounted installation. Furthermore, by connecting the heat exchange fluid inlet 2212a and outlet 2212b of the heat exchanger 221 to the external cooling device 300, a heat exchange fluid circulation loop is established between the heat sink 220 and the external cooling device 300. This allows the external cooling device 300 to supply heat exchange fluid to the heat exchanger 221 for heat exchange. This eliminates the need for a separate heat exchange fluid supply structure within the heat sink 220, further reducing the size of the heat sink 220.

[0086] In some embodiments, referring to FIG2 , the heat dissipation device 220 may further include a water tank 222 and a water pump 223 . The coolant outlet 2211b, the water tank 222, the water pump 223, and the charging device 210 are sequentially connected. The water tank 222 may be used to store the cooled coolant flowing out of the coolant channel 2211 through the coolant outlet 2211b. The water pump 223 may be used to drive the cooled coolant stored in the water tank 222 to be transferred to the charging device 210 so that the cooled coolant dissipates heat from the charging device 210. The water pump 223 may also be used to adjust the flow rate of the coolant transferred from the water tank 222 to the charging device 210 to meet the heat dissipation requirements of the charging device 210.

[0087] Specifically, in one example, the heat dissipation device 220 may further include a cooling liquid inlet pipe 224 and a cooling liquid outlet pipe 225, and the water pump 223 may include a water pump inlet and a water pump outlet. The cooling liquid inlet pipe 224 may connect between the coolant inlet 2211a of the cooling liquid channel 2211 and the liquid outlet pipe 214 of the charging device 210. The coolant outlet 2211b of the cooling liquid channel 2211, the water tank 222, and the water pump inlet of the water pump 223 are sequentially connected. The water pump outlet of the water pump 223 and the liquid inlet pipe 213 of the charging device 210 are connected via the cooling liquid outlet pipe 225.

[0088] In the above embodiment, the flow direction of the coolant in the heat dissipation system 200 can be: power conversion device 212 - liquid outlet of the power conversion device 212 - liquid outlet pipe 214 - cooling liquid inlet pipe 224 - cooling liquid inlet 2211a - cooling liquid channel 2211 - cooling liquid outlet 2211b - water tank 222 - water pump inlet of water pump 223 - water pump 223 - water pump outlet of water pump 223 - cooling liquid outlet pipe 225 - liquid inlet pipe 213 - liquid inlet of power conversion device 212 - power conversion device 212, thereby forming a cooling circulation loop of the coolant between the heat dissipation device 220 and the charging device 210, realizing the cooling circulation of the coolant, and playing the role of liquid cooling and heat dissipation of the power conversion device 212.

[0089] In some embodiments, referring to FIG2 , the heat dissipation device 220 may further include a valve assembly 2261 , and the cooling liquid inlet pipe 224 and the cooling liquid outlet pipe 225 are respectively connected to the liquid outlet pipe 214 and the liquid inlet pipe 213 of the charging device 210 through the valve assembly 2261 , thereby reducing the difficulty of connecting and installing the pipes and facilitating disassembly.

[0090] Specifically, valve assembly 2261 may include valve assembly 2261a and valve assembly 2261b, each of which includes a first connection port and a second connection port. The first connection port of valve assembly 2261a is connected to cooling liquid inlet pipe 224, and the second connection port of valve assembly 2261a is connected to liquid outlet pipe 214. The first connection port of valve assembly 2261b is connected to cooling liquid outlet pipe 225, and the second connection port of valve assembly 2261b is connected to liquid inlet pipe 213. For example, valve assembly 2261 may be a two-way shut-off valve.

[0091] 2 , to facilitate communication between the heat dissipation device 220 and the external cooling device 300, the heat dissipation device 220 may further include a heat exchange liquid inlet pipe 227 and a heat exchange liquid outlet pipe 228. The heat exchange liquid inlet 2212a is configured to communicate with the external cooling device 300 via the heat exchange liquid inlet pipe 227, and the heat exchange liquid outlet 2212b of the heat exchange liquid channel 2212 is configured to communicate with the external cooling device 300 via the heat exchange liquid outlet pipe 228. In a specific implementation, the heat exchange liquid in the heat exchange liquid channel 2212 after heat exchange can flow out from the heat exchange liquid outlet 2212b and be transferred to the external cooling device 300 via the heat exchange liquid outlet pipe 228, so that the heat exchanged heat exchange liquid is cooled by the external cooling device 300. The cooled heat exchange liquid can flow out of the external cooling device 300 and flow into the heat exchange liquid channel 2212 through the heat exchange liquid inlet pipe 227 and the heat exchange liquid inlet 2212a, thereby forming a cooling circulation loop of the heat exchange liquid between the heat dissipation device 220 and the external cooling device 300, realizing the cooling circulation of the heat exchange liquid.

[0092] In one example, referring to FIG2 , the heat dissipation device 220 may further include a valve assembly 2262 , and the heat exchange liquid inlet pipe 227 and the heat exchange liquid outlet pipe 228 may be respectively connected to the external cooling device 300 through the valve assembly 2262 , thereby reducing the difficulty of connecting and installing the pipes and facilitating disassembly.

[0093] For a detailed description of the valve assembly 2262 , please refer to the related description of the valve assembly 2261 , which will not be repeated here.

[0094] In some embodiments, referring again to FIG. 2 , to facilitate integration of the heat dissipation device 220 , the heat dissipation device 220 may further include a housing 229 . The heat exchanger 221 , water tank 222 , and water pump 223 may all be housed within the housing 229 . The housing 229 may be removably connected to the top of the charging device 210 . For example, the housing 229 may be removably connected to the top of the chassis 211 of the charging device 210 via a threaded or snap-fit ​​connection.

[0095] It can be understood that by integrating the heat exchanger 221, water tank 222 and water pump 223 in the heat dissipation device 220 into the box body 229, the heat dissipation device 220 is modularized, thereby facilitating the transportation of the heat dissipation device 220 and the installation with the charging device 210.

[0096] In one example, the cooling liquid inlet pipe 224 and the cooling liquid outlet pipe 225 can be entirely contained within the housing 229. The first connection ports of the valve assembly 2261a and the valve assembly 2261b can both be located within the housing 229 and communicate with the cooling liquid inlet pipe 224 and the cooling liquid outlet pipe 225, respectively. The second connection ports of the valve assembly 2261a and the valve assembly 2261b can both be located outside the housing 229 and communicate with the liquid outlet pipe 214 and the liquid inlet pipe 213, respectively, through pipelines. Similarly, the heat exchange liquid inlet pipe 227 and the heat exchange liquid outlet pipe 228 can also be entirely contained within the housing 229 and communicate with the external cooling device 300 through the connection ports of the valve assembly 2262 located outside the housing 229.

[0097] It can be understood that by accommodating the cooling liquid inlet pipe 224, the cooling liquid outlet pipe 225, the heat exchange liquid inlet pipe 227 and the heat exchange liquid outlet pipe 228 in the box body 229, it is more conducive to integrating the various structural components in the heat dissipation device 220 in the box body 229, and facilitating the transportation, handling and installation of the heat dissipation device 220.

[0098] FIG4 is a schematic structural diagram of another heat dissipation system 200 provided in an embodiment of the present application.

[0099] It should be understood that the heat dissipation system 200 shown in FIG. 4 may include most of the technical features of the heat dissipation system 200 shown in FIG. 2 . The following mainly describes the differences between the two, and most of the same contents are not repeated here.

[0100] Unlike the embodiment shown in FIG2 , in the embodiment shown in FIG4 , the heat exchanger 221 may further include an air-cooling channel 2213 . The air-cooling channel 2213 includes an air inlet 2231a and an air outlet 2231b . The air inlet 2231a and the air outlet 2231b are respectively connected to the external environment, and the air-cooling channel 2213 is used for gas circulation in the external environment. The gas flowing in the air-cooling channel 2213 can be used to perform heat exchange with the coolant flowing in the coolant channel 2211 to cool the coolant in the coolant channel 2211 . In other words, the heat dissipation device 220 can also dissipate heat from the coolant in the coolant channel 2211 by means of air-to-liquid heat exchange.

[0101] For example, heat exchanger 221 can be a three-fluid heat exchanger. A three-fluid heat exchanger is one having independent cooling liquid channels 2211, heat exchange liquid channels 2212, and air cooling channels 2213. In practice, heat from the coolant in cooling liquid channels 2211 can be transferred to the heat exchange liquid in heat exchange liquid channels 2212, or to the gas in air cooling channels 2213, thereby cooling the coolant in cooling liquid channels 2211.

[0102] 5 exemplarily shows a structural diagram of a heat exchanger 221 having a cooling liquid channel 2211 , a heat exchange liquid channel 2212 and an air cooling channel 2213 .

[0103] Referring to Figure 5 , the heat exchanger 221 may include multiple inner shells 2214 and outer shells 2215 corresponding to each of the inner shells 2214. Each outer shell 2215 is sleeved around the outer circumference of its corresponding inner shell 2214. Each inner shell 2214 is provided with a cooling liquid channel 2211. A first space is defined between the inner wall of each outer shell 2215 and the outer wall of the inner shell 2214 it sleeves onto, forming a heat exchange liquid channel 2212. Multiple outer shells 2215 are stacked, with a second space defined between adjacent outer shells 2215, forming an air cooling channel 2213.

[0104] It is understood that both the inner shell 2214 and the outer shell 2215 are thermally conductive, so that in actual use, the heat of the coolant in the coolant channel 2211 can be thermally conducted through the inner shell 2214 to the heat exchange fluid in the heat exchange fluid channel 2212 adjacent to the coolant channel 2211. Alternatively, the heat of the coolant in the coolant channel 2211 can be thermally conducted through the inner shell 2214 and the outer shell 2215 to the gas in the air-cooling channel 2213.

[0105] It can also be understood that the specific structure of the above-mentioned heat exchanger 221 is only for illustration. In the embodiment of the present application, as long as the structure of the heat exchanger 221 can provide a cooling liquid channel 2211, a heat exchange liquid channel 2212 and an air-cooling channel 2213, and the heat exchange liquid flowing in the heat exchange liquid channel 2212 and the gas flowing in the air-cooling channel 2213 can both perform heat exchange with the coolant flowing in the cooling liquid channel 2211, it will be sufficient.

[0106] For details about the heat dissipation system 200 , please refer to the embodiment shown in FIG. 2 , which will not be described in detail here.

[0107] In this embodiment of the present application, by providing an air-cooling channel 2213 connected to the external environment within the heat exchanger 221, the heat exchanger 221 can also transfer heat from the coolant in the coolant channel 2211 to the gas in the air-cooling channel 2213 through heat exchange. In other words, the heat sink 220 can also dissipate heat from the coolant flowing out of the charging device 210 using air-to-liquid heat exchange. In this way, the heat sink 220 can dissipate heat from the coolant flowing out of the charging device 210 using air-to-liquid heat exchange when not connected to the external cooling device 300; and dissipate heat from the coolant flowing out of the charging device 210 using liquid-to-liquid heat exchange when connected to the external cooling device 300. This allows the heat sink 220 to dissipate heat from the coolant in the charging device 210 in a variety of scenarios. In addition, the heat dissipation device 220 can also simultaneously use liquid-liquid heat exchange and air-liquid heat exchange to dissipate heat from the coolant flowing out of the charging device 210, so as to further improve the heat dissipation efficiency of the heat dissipation device 220 on the coolant, thereby facilitating improving the heat dissipation effect of the coolant on the charging device 210.

[0108] The above describes the structures of the charging device 210 and the heat dissipation device 220 in the heat dissipation system 200 provided in the embodiment of the present application. The external cooling device 300 connected to the heat dissipation device 220 will be further described below with reference to the accompanying drawings.

[0109] In some embodiments, cooling system 200 can be installed in an underground garage in a residential building, commercial building, office building, or other structure. These buildings typically include air conditioning systems. FIG6 illustrates a schematic diagram of an air conditioning system 400. For example, air conditioning system 400 can be a central air conditioning system in the building where charging device 210 is located.

[0110] 6 , the air conditioning system 400 may include a cooling water circulation assembly 410 , a chilled water circulation assembly 420 , a compressor 430 , and a throttle valve 440 .

[0111] The chilled water circulation assembly 410 may include an evaporator 411, a chilled water circulation pump 412, a fan coil unit 413, and an expansion water tank 414. The fan coil units 413 may be installed in various rooms of a building, and the expansion water tank 414 may be connected to the evaporator 411 via a pipeline. The evaporator 411, the chilled water circulation pump 412, and the fan coil unit 413 may be connected in sequence via pipelines to form a closed loop, thereby constituting a chilled water circulation loop.

[0112] The chilled water circulation assembly 420 may include a cooling tower 421, a condenser 422, and a cooling water circulation pump 423. The cooling tower 421, the condenser 422, and the cooling water circulation pump 423 may be connected in sequence through pipes to form a closed loop, thereby constituting a cooling water circulation loop.

[0113] The compressor 430 , the condenser 422 , the throttle valve 440 and the evaporator 411 may be connected in sequence through pipelines to form a closed loop, thereby constituting a refrigerant circulation loop.

[0114] In practice, compressor 430 compresses the refrigerant into a liquid state and then delivers it to evaporator 411 of chilled water circulation assembly 410. Evaporator 411 then exchanges heat between the liquid refrigerant and chilled water, transferring the heat from the chilled water to the liquid refrigerant, thereby cooling the chilled water. The cooled chilled water is then delivered to chilled water circulation pump 412, which delivers the heated liquid refrigerant to condenser 422 of cooling water circulation assembly 420. Chilled water circulation pump 412 then drives the cooled chilled water to fan coil units 413 in each room. Fan coil units 413 utilize the cooled chilled water for heat exchange within each room, allowing the cooled chilled water to remove heat from the room, thereby lowering the temperature. The heated chilled water is then transported back to evaporator 411 through pipelines via fan coil units 413 for further cooling.

[0115] The condenser 422 can perform heat exchange between the heated liquid refrigerant and the cooling water to transfer the heat of the liquid refrigerant to the cooling water, thereby cooling the refrigerant. The cooled liquid refrigerant is then transported back to the compressor 430, and the heated cooling water is transported to the cooling tower 421. The cooling tower 421 can cool the heated cooling water by air cooling and transport the cooled cooling water to the cooling water circulation pump 423. The cooling water circulation pump 423 can drive the cooled cooling water back to the condenser 422.

[0116] In one example, the external cooling device 300 may include the cooling water circulation component 420 of the air conditioning system 400 shown in Figure 6. For example, Figure 7 exemplarily shows a schematic diagram of the architecture in which the heat dissipation device 220 and the external cooling device 300 are connected when the external cooling device 300 includes the cooling water circulation component 420.

[0117] 7 , the heat dissipation device 220 may include a heat exchanger 221, a heat exchange liquid inlet pipe 227, and a heat exchange liquid outlet pipe 228, and the external cooling device 300 may include a cooling water circulation assembly 420. The heat exchange liquid channel 2212 of the heat exchanger 221 includes a heat exchange liquid inlet 2212a and a heat exchange liquid outlet 2212b. The heat exchange liquid inlet 2212a and the heat exchange liquid outlet 2212a may be respectively used to communicate with the cooling water circulation assembly 420 via the heat exchange liquid inlet pipe 227 and the heat exchange liquid outlet pipe 228, so as to cool the heat exchange liquid via the cooling water circulation assembly 420.

[0118] Specifically, the cooling tower 421 in the cooling water circulation assembly 420 may include a cooling tower inlet and a cooling tower outlet. The heat exchange liquid inlet pipe 227 may be connected between the heat exchange liquid inlet 2212a and the cooling tower outlet, and the heat exchange liquid outlet pipe 228 may be connected between the heat exchange liquid outlet 2212b and the cooling tower inlet. The heat exchanged heat exchange liquid in the heat exchange liquid channel 2212 may flow from the cooling tower inlet into the cooling tower 421 through the heat exchange liquid outlet pipe 228. The cooling tower 421 may use external air to cool the heat exchanged heat exchange liquid. The cooled heat exchange liquid may flow out of the cooling tower outlet and flow into the heat exchange liquid channel 2212 through the heat exchange liquid inlet pipe 227 to achieve a cooling cycle for the heat exchange liquid.

[0119] It can be understood that, in the above embodiment, the heat exchange fluid may be the cooling water circulating in the cooling water circulation component 420 .

[0120] It will also be appreciated that the cooling tower outlet of the cooling tower 421 is typically also connected to the cooling water circulation pump 423 via a pipeline. Therefore, in actual use, the cooling tower 421 transfers a portion of the cooled heat exchange fluid to the heat exchange fluid channel 2212 via the heat exchange inlet pipe 227, and transfers another portion of the cooled heat exchange fluid to the condenser 422 via the cooling water circulation pump 423. The condenser 422 can perform heat exchange between the heated liquid refrigerant and the cooled heat exchange fluid, transferring the heat from the liquid refrigerant to the heat exchange fluid, and then further transfer the heated heat exchange fluid to the cooling tower 421. The cooling tower 421 cools the heated heat exchange fluid transferred from the condenser 422, and further transfers a portion of the cooled heat exchange fluid to the heat exchange fluid channel 2212 via the heat exchange inlet pipe 227, and further transfers the other portion of the cooled heat exchange fluid to the condenser 422 via the cooling water circulation pump 423.

[0121] Therefore, in the above embodiment, the flow direction of the heat exchange liquid can be: heat exchange liquid channel 2212 - heat exchange liquid outlet 2212b - heat exchange liquid outlet pipe 228 - cooling tower inlet - cooling tower 421 - cooling tower outlet - heat exchange liquid inlet pipe 227 - heat exchange liquid inlet 2212a - heat exchange liquid channel 2212; and, heat exchange liquid channel 2212 - heat exchange liquid outlet 2212b - heat exchange liquid outlet pipe 228 - cooling tower inlet - cooling tower 421 - cooling tower outlet - cooling water circulation pump 423 - condenser 422 - cooling tower inlet - cooling tower 421 - cooling tower outlet - heat exchange liquid inlet pipe 227 - heat exchange liquid inlet 2212a - heat exchange liquid channel 2212.

[0122] For details about the heat dissipation device 220 , please refer to the embodiment shown in FIG2 , which will not be described in detail here.

[0123] In the above technical solution, heat sink 220 can directly utilize the cooling water circulation components of the air conditioning system 400 of the building where charging device 210 is located to dissipate heat from the heat exchange fluid in heat exchange fluid channel 2212. This eliminates the need for a separate structure within heat sink 200 to dissipate heat from the heat exchange fluid, reducing the size and production cost of heat sink 220 and improving resource utilization within the air conditioning system 400 of the building where charging device 210 is located.

[0124] FIG8 is a schematic diagram of another embodiment of the present application showing the connection between the heat dissipation device 220 and the external cooling device 300. Unlike the embodiment shown in FIG7, in the embodiment shown in FIG8, the external cooling device 300 includes the chilled water circulation assembly 410 of the air conditioning system 400 shown in FIG6.

[0125] 8 , the heat dissipation device 220 may include a heat exchanger 221, a heat exchange liquid inlet pipe 227, and a heat exchange liquid outlet pipe 228, and the external cooling device 300 may include a chilled water circulation assembly 410. The heat exchange liquid passage 2212 of the heat exchanger 221 includes a heat exchange liquid inlet 2212a and a heat exchange liquid outlet 2212b. The heat exchange liquid inlet 2212a and the heat exchange liquid outlet 2212a may be respectively used to communicate with the chilled water circulation assembly 410 via the heat exchange liquid inlet pipe 227 and the heat exchange liquid outlet pipe 228, so that the heat exchange liquid is cooled by the chilled water circulation assembly 410.

[0126] Specifically, the chilled water circulation assembly 410 includes an evaporator 411 and a chilled water circulation pump 412. The evaporator 411 includes an evaporator inlet and an evaporator outlet, while the chilled water circulation pump 412 includes a circulation pump inlet and a circulation pump outlet. A heat exchange liquid outlet pipe 228 is connected between the heat exchange liquid outlet 2212b and the evaporator inlet. The evaporator outlet and the circulation pump inlet are connected via a pipeline, and a heat exchange liquid inlet pipe 227 is connected between the heat exchange liquid inlet 2212a and the circulation pump outlet. The heat exchanged heat exchange liquid in the heat exchange liquid channel 2212 can flow into the evaporator 411 through the heat exchange liquid outlet pipe 228. The evaporator 411 can perform heat exchange between the liquid refrigerant and the heat exchange liquid, transferring heat from the heat exchange liquid to the liquid refrigerant. The cooled heat exchange liquid is then transferred to the chilled water circulation pump 412 via a pipeline. The chilled water circulation pump 412 can drive the cooled heat exchange liquid to be transferred to the heat exchange liquid channel 2212 through the heat exchange liquid inlet pipe 227 to realize the cooling circulation of the heat exchange liquid.

[0127] It can be understood that, in the above embodiment, the heat exchange fluid may be the chilled water circulating in the chilled water circulation component 410 .

[0128] It is also understood that the circulating pump outlet of the chilled water circulating pump 412 is also connected to the fan coil unit 413 via a pipeline. Therefore, in actual use, the chilled water circulating pump 412 transfers a portion of the cooled heat exchange fluid to the heat exchange fluid channel 2212 via the heat exchange inlet pipe 227, and transfers another portion of the cooled heat exchange fluid to the fan coil unit 413. The fan coil unit 413 can use the cooled heat exchange fluid to perform heat exchange in each room and then transfer the heat exchanged heat exchange fluid back to the evaporator 411 via a pipeline. The evaporator 411 cools the heat exchanged heat exchange fluid transferred by the fan coil unit 413, transfers another portion of the cooled heat exchange fluid to the heat exchange fluid channel 2212 via the heat exchange inlet pipe 227, and transfers another portion of the cooled heat exchange fluid to the fan coil unit 413 via the chilled water circulating pump 412.

[0129] Therefore, in the above embodiment, the flow direction of the heat exchange liquid can be: heat exchange liquid channel 2212 - heat exchange liquid outlet 2212b - heat exchange liquid outlet pipe 228 - evaporator inlet - evaporator 411 - evaporator outlet - circulating pump inlet - chilled water circulating pump 412 - circulating pump outlet - heat exchange liquid inlet pipe 227 - heat exchange liquid inlet 2212a - heat exchange liquid channel 2212; and, heat exchange liquid channel 2212 - heat exchange liquid outlet 2212b - heat exchange liquid outlet pipe 228 - evaporator inlet - evaporator 411 - evaporator outlet - circulating pump inlet - chilled water circulating pump 412 - circulating pump outlet - fan coil 413 - evaporator inlet - evaporator 411 - evaporator outlet - heat exchange liquid inlet pipe 227 - heat exchange liquid inlet 2212a - heat exchange liquid channel 2212.

[0130] For details about the heat dissipation device 220 , please refer to the embodiment shown in FIG2 , which will not be described in detail here.

[0131] In the above technical solution, heat dissipation device 220 can directly utilize the chilled water circulation components of the air conditioning system 400 of the building where charging device 210 is located to dissipate heat from the heat exchange fluid in heat exchange fluid channel 2212. This eliminates the need for a separate structure within heat dissipation device 200 to dissipate heat from the heat exchange fluid, reducing the size and production cost of heat dissipation device 220 and improving resource utilization within the air conditioning system 400 of the building where heat dissipation device 200 is located.

[0132] FIG9 is a schematic diagram of an architecture in which another heat dissipation device 220 and an external cooling device 300 are connected, according to an embodiment of the present application.

[0133] Unlike the embodiments shown in Figures 7 and 8 , in the embodiment shown in Figure 9 , the external cooling device 300 may include a tap water pipeline 310 and a heat recovery pipeline 320. The heat dissipation device 220 may include a heat exchanger 221, a heat exchange liquid inlet pipe 227, and a heat exchange liquid outlet pipe 228. The heat exchange liquid channel 2212 of the heat exchanger 221 includes a heat exchange liquid inlet 2212a and a heat exchange liquid outlet 2212b. The heat exchange liquid inlet 2212a may be used to communicate with the tap water pipeline 310 via the heat exchange liquid inlet pipe 227, and the heat exchange liquid outlet 2212b may be used to communicate with the heat recovery pipeline 320 via the heat exchange liquid outlet pipe 228.

[0134] It can be understood that, in the above embodiment, the heat exchange fluid may be tap water flowing in the tap water pipeline 310 .

[0135] In actual application, the heat exchange liquid after heat exchange in the heat exchange liquid channel 2212 can flow into the heat recovery pipeline 320 through the heat exchange liquid outlet pipe 228 and be recovered, and the tap water pipeline 310 can continuously provide the heat exchange liquid channel 2212 with heat exchange liquid at a lower temperature through the heat exchange liquid inlet pipe 227.

[0136] Therefore, in the above embodiment, the flow direction of the heat exchange liquid can be: heat exchange liquid channel 2212 - heat exchange liquid outlet 2212b - heat exchange liquid outlet pipe 228 - heat recovery pipeline 320; and, tap water pipeline 310 - heat exchange liquid inlet pipe 227 - heat exchange liquid inlet 2212a - heat exchange liquid channel 2212.

[0137] For details about the heat dissipation device 220 , please refer to the embodiment shown in FIG2 , which will not be described in detail here.

[0138] In the above technical solution, heat dissipation device 220 can directly utilize the tap water pipeline 310 of the building where charging device 210 is located to continuously supply heat exchange fluid to heat exchange fluid channel 2212. The heat exchanged heat exchange fluid in heat exchange fluid channel 2212 is then recovered through heat recovery pipeline 320. This eliminates the need for a separate structure within heat dissipation device 220 to dissipate heat from the heat exchange fluid, thereby reducing the size and production cost of heat dissipation device 200. Furthermore, the heat contained in the heat exchange fluid recovered by heat recovery pipeline 320 can be converted into useful energy for other production processes, heating, or power supply, thereby improving resource utilization.

[0139] FIG10 is a schematic diagram of an architecture in which another heat dissipation device 220 and an external cooling device 300 are connected, according to an embodiment of the present application.

[0140] Unlike the embodiments shown in Figures 7 to 9 , in the embodiment shown in Figure 10 , the external cooling device 300 may include a dry cooler 330 . The heat exchange inlet pipe 221 and the heat exchange outlet pipe 223 may be in communication with the dry cooler 330 , respectively. The heat dissipation device 220 may include a heat exchanger 221 , a heat exchange inlet pipe 227 , and a heat exchange outlet pipe 228 . The heat exchange fluid channel 2212 of the heat exchanger 221 includes a heat exchange fluid inlet 2212 a and a heat exchange fluid outlet 2212 b . The heat exchange fluid inlet 2212 a and the heat exchange fluid outlet 2212 b may be connected to the dry cooler 330 via the heat exchange fluid inlet pipe 227 and the heat exchange fluid outlet pipe 228 , respectively, to cool the heat exchange fluid via the dry cooler 330 .

[0141] Specifically, the dry cooler 330 includes a dry cooler inlet and a dry cooler outlet. A heat exchange inlet pipe 227 can be connected between the heat exchange liquid inlet 2212a and the dry cooler outlet, and a heat exchange outlet pipe 228 can be connected between the heat exchange liquid outlet 2212b and the dry cooler inlet. The heat exchanged heat exchange liquid in the heat exchange liquid channel 2212 can flow into the dry cooler 330 through the heat exchange outlet pipe 228. The dry cooler 330 can use external air to cool the heat exchanged heat exchange liquid and transfer the cooled heat exchange liquid to the heat exchange liquid channel 2212 via the heat exchange inlet pipe 227, thereby achieving a cooling cycle for the heat exchange liquid.

[0142] Therefore, in the above embodiment, the flow direction of the heat exchange liquid can be: heat exchange liquid channel 2212 - heat exchange liquid outlet 2212b - heat exchange liquid outlet pipe 228 - dry cooler inlet - dry cooler 330 - dry cooler outlet - heat exchange liquid inlet pipe 227 - heat exchange liquid inlet 2212a - heat exchange liquid channel 2212.

[0143] For details about the heat dissipation device 220 , please refer to the embodiment shown in FIG2 , which will not be described in detail here.

[0144] In the above technical solution, the heat sink 220 can utilize external air to dissipate heat from the heat exchange fluid in the heat exchange fluid channel 2212 via the connected dry cooler 330. In other words, the heat sink 220 utilizes a natural cooling mode to cool the heat exchange fluid in the heat exchange fluid channel 2212. This eliminates the need for a separate structure within the heat sink 220 to dissipate heat from the heat exchange fluid, thereby reducing the size and production cost of the heat sink 200. Furthermore, utilizing the natural cooling mode allows for lower power consumption to dissipate heat from the heat exchange fluid, thereby reducing energy consumption and further saving costs.

[0145] It can be understood that the specific structure of the above-mentioned external cooling device 300 is only for illustration. In the embodiment of the present application, the structure of the external cooling device 300 only needs to be able to provide heat exchange liquid to the heat exchange liquid channel 2212 and cool the heat exchange liquid in the heat exchange liquid channel 2212.

[0146] The present application also provides a charging station, which may include the aforementioned heat dissipation system 200 and at least one charging terminal. The heat dissipation system 200 may include a charging device 210 and a heat dissipation device 220. The charging device 210 is electrically connected to the at least one charging terminal and is configured to output power to the at least one charging terminal. A detailed description can be found in the embodiment shown in FIG1 and will not be repeated here.

[0147] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A heat dissipation system, characterized in that: include: Charging device and heat dissipation device; The heat dissipation device includes a heat exchanger, and the heat exchanger includes a cooling liquid channel and a heat exchange liquid channel; The coolant channel comprises a coolant inlet and a coolant outlet, the coolant inlet and the coolant outlet are respectively connected to the charging device, and the coolant channel is used for circulating the coolant in the charging device; The heat exchange liquid channel comprises a heat exchange liquid inlet and a heat exchange liquid outlet, the heat exchange liquid inlet and the heat exchange liquid outlet are respectively used to communicate with an external cooling device, and the heat exchange liquid channel is used to circulate the heat exchange liquid in the external cooling device; The heat exchange fluid flowing in the heat exchange fluid channel is used to perform heat exchange with the coolant flowing in the coolant channel to cool the coolant.

2. The heat dissipation system according to claim 1, characterized in that: The heat exchanger also includes an air cooling channel; The air cooling channel comprises an air inlet and an air outlet, the air inlet and the air outlet are respectively connected to the external environment, and the air cooling channel is used for gas circulation in the external environment; The gas flowing in the air cooling channel is used to perform heat exchange with the coolant flowing in the coolant flow channel to cool the coolant.

3. The heat dissipation system according to claim 1 or 2, characterized in that: The heat dissipation device further comprises a heat exchange liquid inlet pipe and a heat exchange liquid outlet pipe, and the external cooling device comprises a cooling water circulation component of the air conditioning system; The heat exchange liquid outlet is used to communicate with the cooling water circulation component through the heat exchange liquid outlet pipe, so that the heat exchange liquid after heat exchange in the heat exchange liquid channel is transmitted to the cooling water circulation component through the heat exchange liquid outlet pipe and is cooled by the cooling water circulation component; The heat exchange liquid inlet is used to communicate with the cooling water circulation component through the heat exchange liquid inlet pipe, so that the cooled heat exchange liquid in the cooling water circulation component is transmitted to the heat exchange liquid channel through the heat exchange liquid inlet pipe.

4. The heat dissipation system according to claim 1 or 2, characterized in that: The heat dissipation device also includes a heat exchange liquid inlet pipe and a heat exchange liquid outlet pipe, and the external cooling device includes a chilled water circulation component of the air conditioning system. The heat exchange liquid outlet is used to communicate with the chilled water circulation component through the heat exchange liquid outlet pipe, so that the heat exchange liquid after heat exchange in the heat exchange liquid channel is transmitted to the chilled water circulation component through the heat exchange liquid outlet pipe and is cooled by the chilled water circulation component; The heat exchange liquid inlet is used to communicate with the chilled water circulation component through the heat exchange liquid inlet pipe, so that the cooled heat exchange liquid in the chilled water circulation component is transmitted to the heat exchange liquid channel through the heat exchange liquid inlet pipe.

5. The heat dissipation system according to claim 1 or 2, characterized in that: The heat dissipation device further comprises a heat exchange liquid inlet pipe and a heat exchange liquid outlet pipe, and the external cooling device comprises a dry cooler. The heat exchange liquid outlet is used to communicate with the dry cooler through the heat exchange liquid outlet pipe, so that the heat exchange liquid after heat exchange in the heat exchange liquid channel is transmitted to the dry cooler through the heat exchange liquid outlet pipe and is cooled by the dry cooler; The heat exchange liquid inlet is used to communicate with the dry cooler through the heat exchange liquid inlet pipe, so that the cooled heat exchange liquid in the dry cooler is transmitted to the heat exchange liquid channel through the heat exchange liquid inlet pipe.

6. The heat dissipation system according to claim 1 or 2, characterized in that: The heat dissipation device further comprises a heat exchange liquid inlet pipe and a heat exchange liquid outlet pipe, and the cooling device comprises a heat recovery pipeline and a tap water pipeline; The heat exchange liquid outlet is used to communicate with the heat recovery pipeline through the heat exchange liquid outlet pipe, so that the heat exchange liquid after heat exchange in the heat exchange liquid channel is transmitted to the heat recovery pipeline through the heat exchange liquid outlet pipe; The heat exchange liquid inlet is used to communicate with the tap water pipeline through the heat exchange liquid inlet pipe, so that the heat exchange liquid in the tap water pipeline is transmitted to the heat exchange liquid channel through the heat exchange liquid inlet pipe.

7. The heat dissipation system according to any one of claims 1 to 6, characterized in that: The heat dissipation device also includes a water tank and a water pump; The coolant outlet, the water tank, the water pump and the charging device are connected in sequence; The water tank is used to store the cooled coolant flowing out of the coolant outlet; The water pump is used to drive the cooled coolant in the water tank to be transmitted to the charging device, so that the cooled coolant dissipates heat for the charging device.

8. The heat dissipation system according to claim 7, characterized in that: The heat dissipation device also includes a box body; The water tank, the water pump and the heat exchanger are all accommodated in the box body, and the box body is detachably connected to the top of the charging device.

9. A charging pile, characterized in that: include: a cooling system and at least one charging terminal; The heat dissipation system comprises a charging device and a heat dissipation device, the charging device is electrically connected to the at least one charging terminal, and the charging device is used to output power to the at least one charging terminal; The heat dissipation device includes a heat exchanger, and the heat exchanger includes a cooling liquid channel and a heat exchange liquid channel. The coolant channel comprises a coolant inlet and a coolant outlet, the coolant inlet and the coolant outlet are respectively connected to the charging device, and the coolant channel is used for circulating the coolant in the charging device; The heat exchange liquid channel comprises a heat exchange liquid inlet and a heat exchange liquid outlet, the heat exchange liquid inlet and the heat exchange liquid outlet are respectively used to communicate with an external cooling device, and the heat exchange liquid channel is used to circulate the heat exchange liquid in the external cooling device; The heat exchange fluid flowing in the heat exchange fluid channel is used to perform heat exchange with the coolant flowing in the coolant channel to cool the coolant.

10. The charging pile according to claim 9, characterized in that: The heat exchanger also includes an air cooling channel; The air cooling channel comprises an air inlet and an air outlet, the air inlet and the air outlet are respectively connected to the external environment, and the air cooling channel is used for gas circulation in the external environment; The gas flowing in the air cooling channel is used to perform heat exchange with the coolant flowing in the coolant flow channel to cool the coolant.

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