Charging host and charging system

Abstract

The embodiment of the utility model provides a charging host and a charging system. The charging host comprises a cabinet body, a charging module, a power module and a liquid storage tank. The charging module and the power module are located in the cabinet body. The liquid storage tank is communicated with the charging module and the power module through pipelines, and the liquid storage tank is used for containing a cooling working medium. Wherein the liquid storage tank is connected with the charging module to form a first circulation loop, and the cooling working medium immerses the charging module through the first circulation loop. The liquid storage tank is connected with the power module to form a second circulation loop, and the cooling working medium dissipates heat of the power module through the second circulation loop. According to the charging host provided by the embodiment of the invention, the problem that normal operation of the charging host is affected due to poor internal heat dissipation effect is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of charging, in particular to a charging host and a charging system. BACKGROUND

[0002] The charging system comprises a charging host and a charging terminal. The charging host can realize power sharing and on-demand allocation of charging power, and can meet the charging demand of new energy vehicles of different models and different power. The charging terminal is connected with the charging host. The charging terminal comprises a charging interface. The charging terminal can be connected with the new energy vehicle through the charging interface to output electric energy to the new energy vehicle.

[0003] The charging module and the power module in the charging host generate a large amount of heat in the working process. In the related technology, the heat dissipation efficiency of the charging module and the power module is not high, which can easily lead to an increase in the internal temperature of the cabinet, affecting the operation reliability and service life of the internal electronic components, and affecting the normal operation of the charging host. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide a charging host and a charging system, which can solve the problem of poor internal heat dissipation of the charging host, affecting the normal operation of the charging host.

[0005] In a first aspect, the embodiments of the present application provide a charging host, comprising a cabinet, a charging module, a power module and a liquid storage tank. The charging module and the power module are located in the cabinet. The liquid storage tank is in communication with the charging module and the power module, and is used to contain a cooling working medium. The liquid storage tank and the charging module form a first circulation loop, and the cooling working medium immerses the charging module through the first circulation loop. The liquid storage tank and the power module form a second circulation loop, and the cooling working medium dissipates heat for the power module through the second circulation loop.

[0006] The charging host provided by the embodiments of the present application immerses the charging module in the cooling working medium, so that the charging module can directly contact the cooling working medium, and the heat of the charging module can be directly transferred to the cooling working medium and removed through the flow of the cooling working medium. Since the charging module directly contacts the cooling working medium, the heat of the cooling working medium can be quickly and fully transferred to the cooling working medium, which is conducive to improving the heat dissipation efficiency of the charging module.

[0007] Through the immersion heat dissipation of the charging module, the temperature of the charging module in the operation process will not be too high. The heat generated by the charging module can be removed in time through the cooling working medium, so that the temperature in the cabinet will not be too high. Therefore, the operation reliability of the charging module and the charging host can be improved, and the stable operation of the charging module can be ensured. Moreover, the service life of the charging module can also be improved.

[0008] And the cooling working medium can liquid-cool the power module. Through the flowability of the cooling working medium, the heat of the power module can be quickly removed, so that the temperature of the power module during operation is not too high, and the temperature in the cabinet body is also not too high, which is beneficial to improve the operation reliability of the power module and the charging host and ensure the stable operation of the power module.

[0009] In a possible implementation, the cabinet body is provided with a first box body for accommodating the charging module, the first box body is in communication with the first circulating loop, and the first box body is used to accommodate the cooling working medium to immerse the charging module.

[0010] In the embodiment of the application, the charging module is located in the first box body. The cooling working medium can be filled in the interior of the first box body, and therefore, the cooling working medium can be in direct contact with the charging module in the first box body. Since the cooling working medium has flowability, the cooling working medium can flow through the surface of the charging module to uniformly and sufficiently cool the charging module. The liquid storage tank can provide the first box body with low-temperature cooling working medium. After absorbing the heat of the charging module, the low-temperature cooling working medium can pass through the first circulating loop, be cooled, and then return to the liquid storage tank to continuously provide the first box body with low-temperature cooling working medium.

[0011] Alternatively, the charging module comprises a first shell and a first heat-generating element, the first heat-generating element is located in the first shell, the first shell is in communication with the first circulating loop, and the first shell is used to accommodate the cooling working medium to immerse the first heat-generating element in the interior of the first shell.

[0012] In the embodiment of the application, the charging module comprises a first shell for protecting the electrical elements such as the first heat-generating element in the interior. The cooling working medium of the liquid storage tank can enter the first shell through the first circulating loop. The cooling working medium can immerse the first heat-generating element in the first shell to cool the first heat-generating element, thereby achieving the cooling effect of the charging module.

[0013] In a possible implementation, the cabinet body is provided with a second box body for accommodating the power module, the second box body is in communication with the second circulating loop, and the second box body is used to accommodate the cooling working medium to immerse the power module in the interior.

[0014] In the embodiment of the application, the power module is located in the second box body. The cooling working medium can be filled in the interior of the second box body, and therefore, the cooling working medium can be in direct contact with the power module in the second box body. Since the cooling working medium has flowability, the cooling working medium can flow through the surface of the power module to uniformly and sufficiently cool the power module. The liquid storage tank can provide the second box body with low-temperature cooling working medium. After absorbing the heat of the power module, the low-temperature cooling working medium can pass through the first circulating loop, be cooled, and then return to the liquid storage tank to continuously provide the second box body with low-temperature cooling working medium.

[0015] Alternatively, the power module includes a second housing and a second heat generating element, the second heat generating element is located in the second housing, the second housing is in communication with the second circulation loop, and the second housing is used to accommodate the cooling working medium to immerse the second heat generating element inside the second housing.

[0016] In the embodiments of the present application, the power module includes a second housing for protecting the second heat generating element and other electrical elements inside. The cooling working medium of the liquid storage tank can enter the second housing through the first circulation loop. The cooling working medium can immerse the second heat generating element in the second housing to dissipate heat from the second heat generating element, thereby achieving the heat dissipation effect of the power module.

[0017] In a possible implementation, the charging host further includes a distribution valve, the distribution valve is in communication with the first circulation loop and the second circulation loop, and the distribution valve is used to distribute the flow of the cooling working medium in the first circulation loop and the second circulation loop.

[0018] In the embodiments of the present application, the liquid storage tank and the charging module can form the first circulation loop. The liquid storage tank and the power module can form the second circulation loop. The distribution valve can be used to distribute the flow of the cooling working medium in the first circulation loop and the second circulation loop, so as to distribute different flows of the cooling working medium to the charging module and the power module with different heat generating degrees, so that the charging module and the power module can operate in the optimal temperature, thereby improving the operation stability of the charging host.

[0019] It is easy to understand that, since the heat generated by the charging module is usually higher than the heat generated by the power module, when the flow of the cooling working medium in the first circulation loop and the second circulation loop is the same, if the heat dissipation demand of the charging module is met, the power module will be over-cooled, which will affect the use performance of the power module, and it is easy to cause waste of the cooling working medium, resulting in increase of the liquid cooling cost. If the heat dissipation demand of the power module is met, it is difficult to meet the heat dissipation demand of the charging module. The high temperature of the charging module affects the normal operation of the charging host.

[0020] Therefore, for the charging module with high heat generating degree, the distribution valve can distribute more cooling working medium to the first circulation loop, so that more cooling working medium can flow to the charging module, so as to improve the circulation speed of the cooling working medium in the first circulation loop, thereby improving the heat dissipation efficiency of the charging module to meet the heat dissipation demand of the charging module. For the power module with low heat generating degree, the distribution valve can distribute less cooling working medium to the second circulation loop to meet the heat dissipation demand of the power module with low heat generating degree.

[0021] Therefore, by distributing different flow rates of the cooling medium to the first circulation loop and the second circulation loop through the distribution valve, the directional heat dissipation of the charging module and the power module can be realized, so that the heat dissipation capacity of the cooling medium in the first circulation loop and the second circulation loop can be matched with the heat generation degree of the charging module and the power module respectively. The charging module and the power module can stably operate in the optimal environment temperature of their respective operation, thereby improving the operation reliability of the charging host.

[0022] Moreover, by distributing different flow rates of the cooling medium to the first circulation loop and the second circulation loop through the distribution valve, the temperature of the region where the charging module is located in the cabinet body can be close to the temperature of the region where the power module is located, so as to make the temperature in the cabinet body relatively balanced.

[0023] In a possible implementation, the charging host further includes a first heat exchanger and a first air cooling module, the first heat exchanger is in communication with the second circulation loop, and the first air cooling module is configured to drive the air flow to circulate in the cabinet body and pass through the power module and the first heat exchanger; the first heat exchanger is configured to cool the air flow.

[0024] In the embodiment of the present application, the first air cooling module can make the air flow circulate in the cabinet body to air cool and dissipate heat for the power module. The first heat exchanger can be used to cool the air flow generated by the first air cooling module, so that the air flow blown to the power module is cold air flow, thereby realizing the heat dissipation of the power module.

[0025] Specifically, when the first air cooling module operates, the first air cooling module can make the air flow circulate in the cabinet body. The air flow can be blown to the power module to remove the heat of the power module through the flow of the air flow. After passing through the power module, the air flow is converted into hot air flow due to the increase of the temperature of the air flow. The first heat exchanger can be used to cool the hot air flow. After passing through the first heat exchanger, the hot air flow can be converted into cold air flow. Then, the cold air flow can be blown to the power module again, thereby realizing the continuous heat dissipation of the power module.

[0026] In a possible implementation, the power module includes a second housing and a second heat generating element, the second housing has a heat dissipation channel, and the second heat generating element is located in the heat dissipation channel; the first air cooling module is close to an end of the heat dissipation channel, and the first air cooling module blows the air flow to the second heat generating element in the heat dissipation channel.

[0027] In the embodiments of the present application, on the one hand, the first air cooling module can make the air flow circulate in the cabinet body and enter the heat dissipation channel. On the other hand, the first air cooling module can make the air flow flow from one end of the heat dissipation channel to the other end, so that the air flow can flow through the entire heat dissipation channel, and thus the second heat generating element in the heat dissipation channel. By making the air flow flow from one end of the heat dissipation channel to the other end, the heat generated by the second heat generating element can be removed to the outside of the heat dissipation channel, so that the temperature of the power module is not easy to be too high, so as to ensure the stable operation of the power module.

[0028] In a possible implementation, the heat dissipation channel has an air inlet and an air outlet; the first heat exchanger is located at the air inlet; or, the first heat exchanger is located at the air outlet.

[0029] In the embodiments of the present application, the first heat exchanger can be used to convert the hot air flow formed after flowing through the second heat generating element into cold air flow. Under the action of the first air cooling module, the cold air flow can enter the heat dissipation channel. The cold air flow can blow to the second heat generating element, and the hot air flow formed after the cold air flow absorbs the second heat generating element is guided out to the outside of the heat dissipation channel.

[0030] Among them, the two ends of the heat dissipation channel can be respectively provided with an air inlet and an air outlet. The first heat exchanger located at the air inlet or the air outlet can realize the effect of converting the hot air flow into cold air flow to re-heat the second heat generating element.

[0031] Specifically, when the first heat exchanger is located at the air inlet, the first heat exchanger can cool the air flow entering the heat dissipation channel to form cold air flow. Therefore, the cold air flow can flow through the entire heat dissipation channel to heat the second heat generating element in the heat dissipation channel. After the cold air flow absorbs the heat of the second heat generating element and converts it into hot air flow, the hot air flow flows out of the air outlet of the heat dissipation channel into the cabinet body. The hot air flow can be cooled by the first heat exchanger again under the action of the first air cooling module, and then enter the heat dissipation channel through the air inlet to continuously provide cold air flow to the second heat generating element, realizing continuous heat dissipation of the second heat generating element.

[0032] Since the first heat exchanger is located at the air inlet of the heat dissipation channel, the air flow needs to pass through the first heat exchanger before entering the heat dissipation channel. Therefore, the air flow entering the heat dissipation channel can be cold air flow, which is conducive to improving the heat dissipation effect of the second heat generating element, thereby ensuring the stable operation of the power module. Moreover, the hot air flow formed after the heat dissipation treatment of the second heat generating element can flow in the cabinet body to release the heat to the external environment of the charging host through the side wall of the cabinet body, thereby reducing the cooling power consumption of the first heat exchanger on the hot air flow.

[0033] Or, when the first heat exchanger is located at the air outlet, the air flow can be cooled by the first heat exchanger at the air outlet after the air flow is cooled by the second heat generating element and forms a hot air flow. The cold air flow can flow in the cabinet under the action of the first air cooling module, so that the cabinet can be kept at a low temperature, thereby on the one hand, the problem that the high temperature of the power module affects the stability of the operation can be more effectively reduced, and on the other hand, the cold air flow flowing in the cabinet can also be used for heat dissipation of other electrical elements in the cabinet, so as to more effectively ensure the stable operation of the charging host.

[0034] It is easy to understand that the temperature in the cabinet can be kept low under the action of the first heat exchanger, so the air flow entering the heat dissipation channel through the air inlet is a cold air flow, which is used for heat dissipation of the second heat generating element.

[0035] In a possible implementation, the heat dissipation channel has an air inlet and an air outlet, and the charging host further comprises an air outlet channel and an air supply channel; one end of the air outlet channel is connected with the air outlet of the heat dissipation channel, and the other end of the air outlet channel is connected with the first heat exchanger; one end of the air supply channel is connected with the first heat exchanger, and the other end of the air supply channel is connected with the air inlet of the heat dissipation channel.

[0036] In the embodiment of the application, the hot air flow flowing out of the air outlet of the heat dissipation channel can enter the air outlet channel. Since the other end of the air outlet channel is connected with the first heat exchanger, the air outlet channel can have a guiding effect, so that the hot air flow can flow to the first heat exchanger and is not easy to spread in other directions. The first heat exchanger can cool the hot air flow to convert it into a cold air flow.

[0037] One end of the air supply channel is connected with the first heat exchanger, and the other end of the air supply channel is connected with the air inlet of the heat dissipation channel. The air supply channel can have a guiding effect. The air supply channel can guide the cold air flow formed by flowing through the first heat exchanger to the air inlet of the heat dissipation channel, so that the cold air flow can be used for heat dissipation of the second heat generating element in the heat dissipation channel.

[0038] In a possible implementation, the charging host further comprises a second heat exchanger, and the first circulation loop and the second circulation loop are in communication with the second heat exchanger, so as to cool the cooling medium after absorbing heat in the first circulation loop and the second circulation loop.

[0039] In the embodiment of the application, the cooling medium is used for heat dissipation of the charging module and the power module to form a cooling medium at a high temperature. The second heat exchanger can be used for cooling the cooling medium at a high temperature in the first circulation loop and the second circulation loop to form a cooling medium at a low temperature. The cooling medium at a low temperature can return to the liquid storage tank, so that the liquid storage tank can continuously provide the first circulation loop and the second circulation loop with the cooling medium at a low temperature, so as to continuously dissipate heat of the charging module and the power module.

[0040] In a second aspect, the embodiments of the present application further provide a charging system, comprising a charging terminal and the charging host in any of the above embodiments. The charging host is electrically connected with the charging terminal. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic diagram of a charging system provided by the embodiments of the present application;

[0042] Figure 2 is a structural schematic diagram of a charging host provided by the embodiments of the present application;

[0043] Figure 3 is a structural schematic diagram of another charging host provided by the embodiments of the present application;

[0044] Figure 4 is a structural schematic diagram of still another charging host provided by the embodiments of the present application;

[0045] Figure 5 is a structural schematic diagram of still another charging host provided by the embodiments of the present application;

[0046] Figure 6 is a structural schematic diagram of still another charging host provided by the embodiments of the present application.

[0047] BRIEF DESCRIPTION OF DRAWINGS

[0048] 10, a charging system;

[0049] 100, a charging host; 100a, an air outlet passage; 100b, an air inlet passage;

[0050] 110, a cabinet; 111, a partition plate;

[0051] 120, a charging module; 121, a first box body; 122, a first shell;

[0052] 130, a power module; 131, a second box body; 132, a second shell; 1321, a heat dissipation passage; 132a, an air inlet; 132b, an air outlet;

[0053] 140, a liquid storage tank; 150, a liquid distribution valve; 160, a first heat exchanger; 170, a first air cooling module; 180, a second heat exchanger; 190, a second air cooling module;

[0054] 101, a first liquid collector; 102, a second liquid collector;

[0055] 200, a charging terminal. DETAILED DESCRIPTION

[0056] The charging system provided by the embodiments of the present application can be used for energy supplement of a new energy vehicle (for example, an electric vehicle), so that the new energy vehicle can store sufficient electric quantity to support its operation.

[0057] The charging system 10 can be connected with a power grid. The charging system 10 can convert alternating current in the power grid into direct current for charging the electric vehicle.

[0058] Figure 1 A structural schematic diagram of a charging system 10 provided by the embodiments of the present application is shown in FIG. 1. Referring to FIG. 1, Figure 1 The charging system 10 can include a charging host 100 and a charging terminal 200. The charging host 100 and the charging terminal 200 are electrically connected. The charging host 100 has an input end and an output end. The input end of the charging host 100 can be used for connection with the power grid, and the output end of the charging host 100 can be used for connection with the charging terminal 200. Therefore, the charging host 100 can convert alternating current in the power grid into direct current, and deliver the direct current to the electric vehicle through the charging terminal 200.

[0059] The charging terminal 200 can include a charging interface. The charging interface can realize data connection between the charging terminal 200 and the electric vehicle, so as to realize energy and information interaction. The charging terminal 200 can be provided with a control unit, a man-machine interaction interface, etc.

[0060] The charging terminal 200 can also be provided with a charging gun. The charging gun can include a gun line and a gun head. One end of the gun line can be connected with the charging interface. The other end of the gun line can be connected with the gun head. The gun head can be used for connection with the electric vehicle.

[0061] Exemplarily, the charging terminal 200 can be a charging pile.

[0062] Continuing to refer to FIG. 1, Figure 1 The number of the charging terminals 200 can be multiple. The multiple charging terminals 200 can be respectively connected with the charging host 100. The number of the charging terminals 200 is not limited in the embodiments of the present application.

[0063] Figures 2 to 6 A structural schematic diagram of a charging host 100 provided by the embodiments of the present application is shown in FIG. 2. Referring to FIG. 2, Figures 2 to 6 The charging host 100 can include a cabinet 110. The cabinet 110 is internally provided with a charging module 120 and a power module 130. The input end of the charging module 120 can be used for connection with the power grid. The output end of the charging module 120 can be used for connection with the power module 130. The charging module 120 can be used for converting alternating current in the power grid into direct current.

[0064] The power module 130 can be connected with the charging terminal 200. The charging terminal 200 can obtain the charging power of the electric vehicle through the charging interface and feed back to the power module 130, so that the power module 130 can dynamically allocate the charging module 120 according to the actual demand of the charging power of the electric vehicle in the charging process.

[0065] The charging module 120 and the power module 130 in the charging host 100 will generate a lot of heat in the working process. If the heat is not dissipated in time, the heat will accumulate in the cabinet 110, the temperature inside the cabinet 110 will rise, thereby affecting the operation reliability and service life of the internal electronic components (including the charging module 120 and the power module 130), and affecting the normal operation of the charging host 100.

[0066] In the embodiment of the application, the cooling working medium can immerse the charging module 120. Therefore, the cooling working medium can be in direct contact with the charging module 120 to improve the heat dissipation efficiency of the charging module 120. In addition, the cooling working medium can also dissipate heat for the power module 130. Since the specific heat capacity and thermal conductivity of liquid are much higher than that of air, compared with the way of dissipating heat for the power module 130 by air cooling, the heat transfer efficiency and effect of the cooling working medium for the power module 130 are better, which is conducive to improving the heat dissipation effect of the power module 130.

[0067] The charging system 10 of the charging host 100 provided by the embodiment of the application will be described in detail below through a specific implementation manner.

[0068] The embodiment of the application provides a charging host 100, as shown in Figures 2 to 6 The charging host 100 can include a cabinet 110, a charging module 120, a power module 130 and a liquid storage tank 140.

[0069] The charging module 120 and the power module 130 can be located in the cabinet 110. The liquid storage tank 140 can be in communication with the charging module 120 and the power module 130 through pipelines respectively. The liquid storage tank 140 is used to contain the cooling working medium.

[0070] The liquid storage tank 140 and the charging module 120 can form a first circulation loop. The cooling working medium immerses the charging module 120 through the first circulation loop. The liquid storage tank 140 and the power module 130 can form a second circulation loop. The cooling working medium dissipates heat for the power module 130 through the second circulation loop.

[0071] In the embodiment, the charging module 120 is immersed in the cooling working medium, so the charging module 120 can be directly contacted with the cooling working medium, and the heat of the charging module 120 can be directly transferred to the cooling working medium and removed through the flow of the cooling working medium. Since the charging module 120 is directly contacted with the cooling working medium, the heat of the cooling working medium can be quickly and sufficiently transferred to the cooling working medium, which is beneficial to improve the heat dissipation efficiency of the charging module 120.

[0072] Through the immersion heat dissipation of the charging module 120, the temperature of the charging module 120 during operation will not be too high. The heat generated by the charging module 120 can be removed in time through the cooling working medium, so that the temperature in the cabinet 110 will not be too high. Therefore, the operation reliability of the charging module 120 and the charging host 100 can be improved, and the stable operation of the charging module 120 can be ensured. Moreover, the service life of the charging module 120 can also be improved.

[0073] Moreover, the cooling working medium can perform liquid cooling heat dissipation on the power module 130. Through the flowability of the cooling working medium, the heat of the power module 130 can be quickly removed, so that the temperature of the power module 130 during operation will not be too high, and the temperature in the cabinet 110 will also not be too high, which is beneficial to improve the operation reliability of the power module 130 and the charging host 100, and ensure the stable operation of the power module 130.

[0074] It should be noted that the heat dissipation mode of the cooling working medium on the power module 130 can be but is not limited to that the cooling working medium immerses the power module 130. The cooling working medium can be directly contacted with the power module 130, so that the heat of the power module 130 can be directly and sufficiently contacted with the cooling working medium and removed through the flow of the cooling working medium. Alternatively, the power module 130 can be attached to a cold plate. The cooling working medium can be stored in the cold plate. The heat of the power module 130 can be first transferred to the cold plate, and then removed through the flow of the cooling working medium in the cold plate. Furthermore, the power module 130 can be cooled through the combination of air cooling and liquid cooling. In the embodiment, no specific limitation is made.

[0075] In some examples, when the cooling working medium immerses the charging module 120 and / or immerses the power module 130, the cooling working medium can be an insulating working medium. For example, the cooling working medium can be but is not limited to insulating oil (such as mineral oil, synthetic oil), fluorinated liquid, etc.

[0076] In some examples, the charging module 120 and the power module 130 can be arranged side by side in the cabinet 110. For example, the charging module 120 and the power module 130 can be arranged in the horizontal direction. Alternatively, the charging module 120 and the power module 130 can be arranged in the height direction of the cabinet 110. In the embodiment, no specific limitation is made.

[0077] In some possible implementation manners, referring to Figure 2 As shown in the figure, the cabinet 110 of the embodiment of the present application is provided with a first box 121 for accommodating the charging module 120. The first box 121 is in communication with the first circulation loop. The first box 121 is used to accommodate the cooling working medium to immerse the charging module 120.

[0078] In the embodiment of the present application, the charging module 120 is located in the first box 121. The cooling working medium can be filled in the interior of the first box 121, and thus the cooling working medium can be in direct contact with the charging module 120 in the first box 121. Since the cooling working medium has fluidity, the cooling working medium can flow through the surface of the charging module 120 to uniformly and sufficiently dissipate heat of the charging module 120. The liquid storage tank 140 can provide the first box 121 with low-temperature cooling working medium. The low-temperature cooling working medium can be circulated through the first circulation loop after absorbing heat of the charging module 120, and returned to the liquid storage tank 140 after cooling to continuously provide the first box 121 with low-temperature cooling working medium.

[0079] In some examples, the number of the charging module 120 can be at least one. When the number of the charging module 120 is multiple, the multiple charging modules 120 can be located in the first box 121 and immersed by the cooling working medium in the first box 121.

[0080] The multiple charging modules 120 can be arranged in a horizontal direction or in a vertical direction, which is not limited in the embodiment of the present application.

[0081] In some possible implementation manners, referring to Figure 3 As shown in the figure, the charging module 120 of the embodiment of the present application can include a first shell 122 and a first heating element. The first heating element is located in the first shell 122. The first shell 122 is in communication with the first circulation loop. The first shell 122 is used to accommodate the cooling working medium to immerse the first heating element in the interior of the first shell 122.

[0082] In the embodiment of the present application, the charging module 120 includes the first shell 122 for protecting the electrical elements such as the first heating element in the interior. The cooling working medium of the liquid storage tank 140 can enter the first shell 122 through the first circulation loop. The cooling working medium can immerse the first heating element in the first shell 122 to dissipate heat of the first heating element, thereby achieving the heat dissipation effect of the charging module 120.

[0083] In some examples, when the number of the charging modules 120 is multiple, the cooling working medium is arranged in each first shell 122 of the multiple charging modules 120. The cooling working medium can dissipate heat of the first heat generating element in the corresponding first shell 122. In other words, the multiple charging modules 120 can dissipate heat of the first heat generating element in the respective internal cooling working medium.

[0084] In some examples, the charging host 100 can include a first liquid collector 101. The liquid storage tank 140 can provide the low-temperature cooling working medium to the first liquid collector 101 through the pipeline. The first liquid collector 101 can respectively distribute the cooling working medium to the multiple charging modules 120 to respectively dissipate heat of the multiple charging modules 120.

[0085] In some examples, the charging host 100 can further include a second liquid collector 102. The cooling working medium after being used to dissipate heat of the charging modules 120 becomes high-temperature cooling working medium. The high-temperature cooling working medium can be collected to the second liquid collector 102. The high-temperature cooling working medium can be cooled and then returned to the liquid storage tank 140.

[0086] Exemplarily, when the multiple charging modules 120 are arranged in the vertical direction, the first liquid collector 101 and the second liquid collector 102 can extend in the vertical direction.

[0087] In some implementable manners, referring to FIG. 1, the cabinet 110 is provided with a second box 131 for accommodating the power module 130. The second box 131 is in communication with the second circulation loop. The second box 131 is used to accommodate the cooling working medium to immerse the power module 130. Figure 2

[0088] In the embodiment of the present application, the power module 130 is located in the second box 131. The cooling working medium can be filled in the interior of the second box 131, so that the cooling working medium can be in direct contact with the power module 130 in the second box 131. Since the cooling working medium has fluidity, the cooling working medium can flow through the surface of the power module 130 to uniformly and sufficiently dissipate heat of the power module 130. The liquid storage tank 140 can provide the low-temperature cooling working medium to the second box 131. After the low-temperature cooling working medium absorbs heat of the power module 130, the low-temperature cooling working medium can pass through the first circulation loop, be cooled and then be returned to the liquid storage tank 140 to continuously provide the low-temperature cooling working medium to the second box 131.

[0089] In some examples, the number of the power module 130 can be at least one. When the number of the power module 130 is multiple, the multiple power modules 130 can be located in the second box 131 and be immersed by the cooling working medium in the second box 131.

[0090] ​The plurality of power modules 130 can be arranged in a horizontal direction or in a vertical direction, which is not limited in the embodiment of the present application.

[0091] In some possible implementation manners, referring to Figure 3 The power module 130 includes a second shell 132 and a second heat generating element. The second heat generating element is located in the second shell 132. The second shell 132 is in communication with the second circulation loop. The second shell 132 is used to contain the cooling working medium to immerse the second heat generating element inside the second shell 132.

[0092] In the embodiment of the present application, the power module 130 includes the second shell 132 for protecting the electrical elements such as the second heat generating element inside. The cooling working medium of the liquid storage tank 140 can enter the second shell 132 through the first circulation loop. The cooling working medium can immerse the second heat generating element in the second shell 132 to dissipate heat of the second heat generating element, thereby achieving the heat dissipation effect of the power module 130.

[0093] In some examples, the number of power modules 130 can be at least one. When the number of power modules 130 is multiple, the cooling working medium is arranged in the second shell 132 of each power module 130. The cooling working medium can dissipate heat of the second heat generating element in the corresponding second shell 132. In other words, the plurality of power modules 130 can dissipate heat of the second heat generating element inside through the cooling working medium inside.

[0094] In some possible implementation manners, referring to Figure 2 and Figure 3 The charging host 100 further includes a distribution valve 150. The distribution valve 150 is in communication with the first circulation loop and the second circulation loop. The distribution valve 150 is used to distribute the flow of the cooling working medium in the first circulation loop and the second circulation loop.

[0095] In the embodiment of the present application, the liquid storage tank 140 and the charging module 120 can form the first circulation loop. The liquid storage tank 140 and the power module 130 can form the second circulation loop. The distribution valve 150 can be used to distribute the flow of the cooling working medium in the first circulation loop and the second circulation loop, so as to distribute the cooling working medium with different flow rates to the charging module 120 and the power module 130 with different heat generating degrees, so that the charging module 120 and the power module 130 can operate in the optimal temperature, thereby improving the operation stability of the charging host 100.

[0096] In some examples, according to experimental data, the heat generated by the charging module 120 per unit time is higher than the heat generated by the power module 130. Therefore, the flow of the cooling medium distributed by the distribution valve 150 to the first circulation loop can be higher than the flow of the cooling medium distributed to the second circulation loop.

[0097] It is easy to understand that, since the heat generated by the charging module 120 is generally higher than the heat generated by the power module 130, when the flow of the cooling medium in the first circulation loop and the second circulation loop is the same, if the heat dissipation requirement of the charging module 120 is met, it will cause excessive cooling of the power module 130, affecting the use performance of the power module 130, and easily leading to waste of the cooling medium, increasing the cost of liquid cooling. If the heat dissipation requirement of the power module 130 is met, it is difficult to meet the heat dissipation requirement of the charging module 120. The temperature of the charging module 120 is too high, affecting the normal operation of the charging host 100.

[0098] Therefore, for the charging module 120 with a higher heat generation degree, the distribution valve 150 can distribute more cooling medium to the first circulation loop, so that more cooling medium can flow to the charging module 120, so as to increase the circulation speed of the cooling medium in the first circulation loop, thereby improving the heat dissipation efficiency of the charging module 120 to meet the heat dissipation requirement of the charging module 120. For the power module 130 with a lower heat generation degree, the distribution valve 150 can distribute less cooling medium to the second circulation loop to meet the heat dissipation requirement of the power module 130 with a lower heat generation degree.

[0099] Therefore, by distributing different flows of cooling medium to the first circulation loop and the second circulation loop through the distribution valve 150, directional heat dissipation processing of the charging module 120 and the power module 130 can be realized, so that the heat dissipation capacity of the cooling medium in the first circulation loop and the second circulation loop can be matched with the heat generation degree of the charging module 120 and the power module 130, respectively. The charging module 120 and the power module 130 can stably operate in the optimal environment temperature of their respective operation, thereby improving the operation reliability of the charging host 100.

[0100] Moreover, by distributing different flows of cooling medium to the first circulation loop and the second circulation loop through the distribution valve 150, the temperature of the area where the charging module 120 is located in the cabinet 110 can be close to the temperature of the area where the power module 130 is located, so as to make the temperature in the cabinet 110 relatively balanced.

[0101] In some examples, the distribution valve 150 can be, but is not limited to, a three-way valve. The first port of the distribution valve 150 can be connected with the liquid storage tank 140. The second port of the distribution valve 150 can be in communication with the first circulation loop. The third port of the distribution valve 150 can be in communication with the second circulation loop.

[0102] In some examples, the charging host 100 can further include a circulating pump. The circulating pump can be disposed between the liquid storage tank 140 and the liquid distribution valve 150. One end of the circulating pump can be connected to the liquid storage tank 140, and the other end of the circulating pump can be connected to the liquid distribution valve 150. The circulating pump can provide power for the flow of the cooling working medium, so as to accelerate the flowability of the cooling working medium and improve the heat dissipation efficiency.

[0103] In some possible implementations, as shown in Figure 4 and Figure 5 , the charging host 100 further includes a first heat exchanger 160 and a first air cooling module 170. The first heat exchanger 160 is in communication with the second circulating loop. The first air cooling module 170 is configured to drive the air flow to circulate in the cabinet 110 and pass through the power module 130 and the first heat exchanger 160. The first heat exchanger 160 is configured to cool the air flow.

[0104] In the embodiments of the present application, the first air cooling module 170 can circulate the air flow in the cabinet 110 to cool the power module 130. The first heat exchanger 160 can be used to cool the air flow generated by the first air cooling module 170, so that the air flow blown to the power module 130 is cold air flow, thereby achieving heat dissipation of the power module 130.

[0105] Specifically, when the first air cooling module 170 is running, the first air cooling module 170 can circulate the air flow in the cabinet 110. The air flow can be blown to the power module 130 to remove the heat of the power module 130 through the flow of the air flow. After passing through the power module 130, the air flow is converted into hot air flow due to the increase of the temperature of the air flow. The first heat exchanger 160 can be used to cool the hot air flow. After passing through the first heat exchanger 160, the hot air flow can be converted into cold air flow. Then, the cold air flow can be blown to the power module 130 again, thereby achieving continuous heat dissipation of the power module 130.

[0106] In some possible implementations, as shown in Figure 4 and Figure 5 , the power module 130 of the embodiments of the present application can include a second shell 132 and a second heat generating element. The second shell 132 has a heat dissipation channel 1321. The second heat generating element is located in the heat dissipation channel 1321. The first air cooling module 170 is close to the end of the heat dissipation channel 1321. The first air cooling module 170 blows the air flow to the second heat generating element in the heat dissipation channel 1321.

[0107] In this embodiment, on one hand, the operation of the first air-cooling module 170 allows airflow to circulate within the cabinet 110 and enter the heat dissipation channel 1321. On the other hand, the first air-cooling module 170 allows airflow to flow from one end of the heat dissipation channel 1321 to the other, so that airflow can pass through the entire heat dissipation channel 1321, thereby allowing airflow to pass through the second heating element within the heat dissipation channel 1321. By allowing airflow to flow from one end of the heat dissipation channel 1321 to the other, the heat generated by the second heating element can be moved to the outside of the heat dissipation channel 1321, thereby preventing the temperature of the power module 130 from becoming too high and ensuring the stable operation of the power module 130.

[0108] See also some of the possible implementation methods. Figure 4 and Figure 5 As shown, the heat dissipation channel 1321 in this embodiment of the application has an air inlet 132a and an air outlet 132b. The first heat exchanger 160 may be located at the air inlet 132a. Alternatively, the first heat exchanger 160 may be located at the air outlet 132b.

[0109] In this embodiment, the first heat exchanger 160 can be used to convert the hot airflow formed after flowing through the second heating element into a cold airflow. Under the action of the first air-cooling module 170, the cold airflow can enter the heat dissipation channel 1321. The cold airflow can be blown towards the second heating element, and the hot airflow formed after the cold airflow absorbs the second heating element can be discharged to the outside of the heat dissipation channel 1321.

[0110] The heat dissipation channel 1321 can be provided with an air inlet 132a and an air outlet 132b at its two ends, respectively. The first heat exchanger 160 located at either the air inlet 132a or the air outlet 132b can convert hot airflow into cold airflow to dissipate heat from the second heat-generating element.

[0111] Specifically, see Figure 4 As shown, when the first heat exchanger 160 is located at the air inlet 132a, the first heat exchanger 160 can cool the airflow entering the heat dissipation channel 1321 to form a cold airflow. Therefore, the cold airflow can flow through the entire heat dissipation channel 1321 to dissipate heat from the second heating element within the heat dissipation channel 1321. After absorbing the heat from the second heating element and converting it into hot air, the cold airflow flows out through the air outlet 132b of the heat dissipation channel 1321 into the cabinet 110. The hot airflow can be cooled again by the first heat exchanger 160 under the action of the first air-cooling module 170, and then enter the heat dissipation channel 1321 through the air inlet 132a to continuously provide cold airflow to the second heating element, thereby achieving continuous heat dissipation for the second heating element.

[0112] Since the first heat exchanger 160 is located at the air inlet 132a of the heat dissipation channel 1321, the airflow needs to pass through the first heat exchanger 160 before entering the heat dissipation channel 1321. Therefore, the airflow entering the heat dissipation channel 1321 can be cold airflow, which is beneficial to improving the heat dissipation effect on the second heat-generating element, thereby ensuring the stable operation of the power module 130. Furthermore, the hot airflow formed after the heat dissipation treatment of the second heat-generating element can flow within the cabinet 110 to release heat to the external environment of the charging host 100 through the side wall of the cabinet 110, thereby reducing the cooling power consumption of the first heat exchanger 160 for the hot airflow.

[0113] Or see Figure 5 As shown, when the first heat exchanger 160 is located at the air outlet 132b, the airflow dissipates heat from the second heating element and forms a hot airflow, which can then be cooled by the first heat exchanger 160 at the air outlet 132b. The cold airflow, under the action of the first air-cooling module 170, can flow within the cabinet 110 to maintain a low temperature inside the cabinet 110. This effectively reduces the problem of the power module 130 overheating and affecting operational stability. Furthermore, the cold airflow within the cabinet 110 can also dissipate heat from other electrical components within the cabinet 110, ensuring the stable operation of the charging host 100.

[0114] It is easy to understand that the temperature inside the cabinet 110 can be kept low by the action of the first heat exchanger 160. Therefore, the airflow entering the heat dissipation channel 1321 through the air inlet 132a is cold airflow, which is used to dissipate heat from the second heating element.

[0115] In some examples, the first air-cooled module 170 may be, but is not limited to, a fan. The first heat exchanger 160 may be an air-liquid cooled heat exchanger. An air-liquid heat exchanger enables heat exchange between an airflow with a temperature difference and a cooling medium, thereby converting hot airflow into cold airflow through the flow of the cooling medium.

[0116] For example, the first heat exchanger 160 can be a liquid-cooled door. When the first heat exchanger 160 is located at the air inlet 132a, the airflow flowing out of the air outlet 132b is hot air. The hot air flows inside the cabinet 110. Therefore, by passing through the first heat exchanger 160, the hot airflow can be cooled down before entering the heat dissipation channel 1321 through the air inlet 132a, which helps to reduce the possibility that the hot airflow directly enters the heat dissipation channel 1321 through the air inlet 132a, thus affecting the heat dissipation effect on the power module 130.

[0117] Similarly, when the first heat exchanger 160 is located at the air outlet 132b, the hot air flow formed in the heat dissipation channel 1321 can pass through the first heat exchanger 160 for cooling before flowing out of the air outlet 132b to the cabinet 110, so that the air flow in the cabinet 110 is cold air flow, and the air flow entering the heat dissipation channel 1321 through the air inlet 132a is also cold air flow, which is beneficial to reduce the possibility that the hot air flow in the heat dissipation channel 1321 directly flows out of the air outlet 132b to the cabinet 110, and the hot air flow enters the heat dissipation channel 1321 through the air inlet 132a, resulting in the possibility of failure of the power module 130.

[0118] The distribution valve 150 can be connected with the first heat exchanger 160 through a pipeline to provide cooling working medium for the first heat exchanger 160. The cooling working medium flowing in the first heat exchanger 160 can cool the hot air flow passing through the first heat exchanger 160. The cooling working medium in the first heat exchanger 160 can return to the liquid storage tank 140 through another pipeline after absorbing heat of the hot air flow. The cooling working medium needs to be cooled before returning to the liquid storage tank 140, so that the liquid storage tank 140 can provide low-temperature cooling working medium for the charging module 120 and the power module 130 again.

[0119] In some possible implementation manners, referring to FIG. 1, Figure 6 The heat dissipation channel 1321 has an air inlet 132a and an air outlet 132b. The charging host 100 further has an air outlet channel 100a and an air supply channel 100b. One end of the air outlet channel 100a is connected with the air outlet 132b of the heat dissipation channel 1321. The other end of the air outlet channel 100a is connected with the first heat exchanger 160. One end of the air supply channel 100b is connected with the first heat exchanger 160. The other end of the air supply channel 100b is connected with the air inlet 132a of the heat dissipation channel 1321.

[0120] In the embodiment of the present application, the hot air flow flowing out of the air outlet 132b of the heat dissipation channel 1321 can enter the air outlet channel 100a. Since the other end of the air outlet channel 100a is connected with the first heat exchanger 160, the air outlet channel 100a can have a guiding effect, so that the hot air flow can flow to the first heat exchanger 160 and is not easy to spread in other directions. The first heat exchanger 160 can cool the hot air flow to convert it into cold air flow.

[0121] One end of the air supply channel 100b is connected with the first heat exchanger 160, and the other end is connected with the air inlet 132a of the heat dissipation channel 1321. The air supply channel 100b can have a guiding effect. The air supply channel 100b can guide the cold air flow formed by flowing through the first heat exchanger 160 to the air inlet 132a of the heat dissipation channel 1321, so that the cold air flow can perform heat dissipation on the second heat generating element in the heat dissipation channel 1321.

[0122] In some examples, the liquid outlet end of the first heat exchanger 160 can be connected with the second liquid collector 102. The second liquid collector 102 can collect the high-temperature cooling medium. The high-temperature cooling medium can be transported to the direction of the liquid storage tank 140 after being cooled.

[0123] In some examples, a plurality of partitions 111 can be arranged in the charging host 100. The plurality of partitions 111 can be arranged to form the air supply channel 100b and the air outlet channel 100a, so as to guide the air flow and prevent the air flow from spreading to other directions.

[0124] In some examples, the charging host 100 can further include a second heat exchanger 180, as shown in FIG. 1. Figures 2 to 6 The first circulation loop and the second circulation loop are in communication with the second heat exchanger 180, so as to cool the cooling medium in the first circulation loop and the second circulation loop after absorbing heat.

[0125] In the embodiment, the cooling medium cools the charging module 120 and the power module 130 to form high-temperature cooling medium. The second heat exchanger 180 can be used to cool the high-temperature cooling medium in the first circulation loop and the second circulation loop to form low-temperature cooling medium. The low-temperature cooling medium can be returned to the liquid storage tank 140, so that the liquid storage tank 140 can continuously provide the first circulation loop and the second circulation loop with low-temperature cooling medium, so as to continuously cool the charging module 120 and the power module 130.

[0126] In some examples, the charging host 100 can further include a second air cooling module 190. The second air cooling module 190 can be arranged close to the second heat exchanger 180. The second air cooling module 190 can accelerate the flow of the air flow, so as to improve the heat exchange effect between the air flow and the cooling medium. The second air cooling module 190 can be, but is not limited to, a fan.

[0127] It should be noted that, in the embodiment, the charging module 120 uses immersion liquid cooling to dissipate heat, and the cooling medium can directly and fully contact the charging module 120, so that the charging module 120 can have a good heat dissipation effect. In addition, the power module 130 can also use immersion liquid cooling, or the power module 130 can use a combination of air cooling and liquid cooling, so that the power module 130 can have a good heat dissipation effect. Therefore, the charging module 120 and the power module 130 can both have good heat dissipation capability, so that the power of the second heat exchanger 180 and the second air cooling module 190 can be reduced, the energy consumption of the charging host 100 can be reduced, and the noise generated during the operation of the second heat exchanger 180 and the second air cooling module 190 can also be reduced.

[0128] The embodiment of the present application provides a charging system 10. The charging system 10 can include a charging terminal 200 and the charging host 100 in any of the above embodiments. The charging host 100 is electrically connected with the charging terminal 200.

[0129] The input end of the charging host 100 can be used to connect with the power grid, and the output end of the charging host 100 can be used to connect with the charging terminal 200.

[0130] In the description of the embodiment of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiment of the present application can be understood according to the specific circumstances.

[0131] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them; although the embodiments of the present application have been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging host (100), characterized in that, include: Cabinet (110); A charging module (120) is located inside the cabinet (110); A power module (130) is located inside the cabinet (110); A liquid storage tank (140) is connected to the charging module (120) and the power module (130) respectively, and the liquid storage tank (140) is used to contain the cooling working fluid; The liquid storage tank (140) is connected to the charging module (120) to form a first circulation loop, and the cooling working fluid immerses the charging module (120) through the first circulation loop; The liquid storage tank (140) is connected to the power module (130) to form a second circulation loop, and the cooling working fluid dissipates heat from the power module (130) through the second circulation loop.

2. The charging host (100) according to claim 1, characterized in that, The cabinet (110) is provided with a first box (121) for accommodating the charging module (120). The first box (121) is connected to the first circulation loop. The first box (121) is used to contain the cooling working fluid to immerse the charging module (120). Alternatively, the charging module (120) includes a first housing (122) and a first heating element, the first heating element being located inside the first housing (122), the first housing (122) being connected to the first circulation loop, and the first housing (122) being used to contain the cooling working fluid to immerse the first heating element inside the first housing (122).

3. The charging host (100) according to claim 1, characterized in that, The cabinet (110) is provided with a second box (131) for accommodating the power module (130). The second box (131) is connected to the second circulation loop. The second box (131) is used to contain the cooling working fluid to immerse the power module (130) inside. Alternatively, the power module (130) includes a second housing (132) and a second heating element, the second heating element being located inside the second housing (132), the second housing (132) being in communication with the second circulation loop, and the second housing (132) being used to contain the cooling working fluid to immerse the second heating element inside the second housing (132).

4. The charging host (100) according to any one of claims 1 to 3, characterized in that, It also includes a liquid distribution valve (150), which is connected to the first circulation loop and the second circulation loop, and is used to distribute the flow rate of the cooling working fluid in the first circulation loop and the second circulation loop.

5. The charging host (100) according to claim 2, characterized in that, It also includes a first heat exchanger (160) and a first air-cooling module (170). The first heat exchanger (160) is connected to the second circulation loop. The first air-cooling module (170) is used to drive the airflow through the power module (130) and the first heat exchanger (160). The first heat exchanger (160) is used to cool the airflow.

6. The charging host (100) according to claim 5, characterized in that, The power module (130) includes a second housing (132) and a second heating element. The second housing (132) has a heat dissipation channel (1321), and the second heating element is located in the heat dissipation channel (1321). The first air-cooling module (170) is located near the end of the heat dissipation channel (1321), and the first air-cooling module (170) blows airflow toward the second heat-generating element in the heat dissipation channel (1321).

7. The charging host (100) according to claim 6, characterized in that, The heat dissipation channel (1321) has an air inlet (132a) and an air outlet (132b); The first heat exchanger (160) is located at the air inlet (132a); or, the first heat exchanger (160) is located at the air outlet (132b).

8. The charging host (100) according to claim 6, characterized in that, The heat dissipation channel (1321) has an air inlet (132a) and an air outlet (132b), and the charging host (100) is also provided with an air outlet channel (100a) and an air supply channel (100b); One end of the air outlet channel (100a) is connected to the air outlet (132b) of the heat dissipation channel (1321), and the other end of the air outlet channel (100a) is connected to the first heat exchanger (160). One end of the air supply channel (100b) is connected to the first heat exchanger (160), and the other end of the air supply channel (100b) is connected to the air inlet (132a) of the heat dissipation channel (1321).

9. The charging host (100) according to claim 7, characterized in that, It also includes a second heat exchanger (180), and the first circulation loop and the second circulation loop are connected to the second heat exchanger (180) for cooling the cooling medium after heat absorption in the first circulation loop and the second circulation loop.

10. A charging system (10), characterized in that, It includes a charging terminal (200) and a charging host (100) as described in any one of claims 1 to 9, wherein the charging host (100) is electrically connected to the charging terminal (200).

Images