Energy Storage Inverter and Energy Storage System

Abstract

This application relates to the field of energy storage technologies, particularly to an energy storage converter and an energy storage system. In the embodiments of this application, by configuring the radiator to include a main body portion and a plurality of insertion portions, and inserting the insertion portions into the fluid channels of the thermal management components, not only can the coolant in the fluid channels be further utilized to cool the insertion portions, but also the insertion portions can be used to disturb the flow of the coolant in the fluid channels, prolong the time for the coolant to pass through the insertion portions, further enhance the cooling effect of the coolant on the insertion portions, and thereby cool the main body portion. Since the radiator is located on the airflow path generated by the fan, the airflow generated by the fan can be cooled via the main body portion, thereby cooling the components on the first side of the thermal management component, and further enhancing the thermal management effect of the energy storage converter.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly to an energy storage converter and an energy storage system. Background Art

[0002] The power conversion system (PCS for short), is one of the core devices in the energy storage system. With the rapid development of energy storage technology, the power of the energy storage converter has been continuously improved, and the power consumption of the components inside the energy storage converter has also been continuously increasing, resulting in an increasing heat generation of the components, and further making the thermal management requirements of the energy storage converter higher and higher. Therefore, how to improve the thermal management effect of the energy storage converter is an urgent problem to be solved. Summary of the Invention

[0003] Based on this, it is necessary to provide an energy storage converter and an energy storage system to improve the thermal management effect of the energy storage converter.

[0004] According to one aspect of the present application, an embodiment of the present application provides an energy storage converter, including a thermal management component, a plurality of components and an air-cooling module. The thermal management component is provided with a fluid channel, and the thermal management component has a first side and a second side oppositely arranged along a first direction. A plurality of components are arranged on the first side. The air-cooling module is arranged on the first side. The air-cooling module includes a fan and a radiator. The radiator includes a main body portion and a plurality of insertion portions arranged at intervals. The main body portion is located on the airflow path generated by the fan. A plurality of insertion portions are arranged on one side of the main body portion facing the thermal management component along the first direction, and the plurality of insertion portions are inserted into the fluid channel.

[0005] In some embodiments, the fluid channel includes a first buffer section and a main body section. The first buffer section is communicated with the inlet of the fluid channel, and the main body section communicates the first buffer section and the outlet of the fluid channel; the orthographic projection of the main body section on a reference plane and the orthographic projection of the plurality of components on the reference plane have an overlapping part, and the reference plane is a plane perpendicular to the first direction; the plurality of insertion portions are inserted into the first buffer section.

[0006] In some embodiments, from the inlet of the fluid channel to the outlet of the fluid channel, the extending direction of the fluid channel is the reference direction; along the reference direction, the distribution density of the plurality of insertion portions in the unit space area of the fluid channel shows a decreasing trend.

[0007] In some embodiments, along the reference direction, the distribution density of the plurality of insertion portions in the unit space area of the fluid channel gradually decreases.

[0008] In some embodiments, the inlet of the fluid channel and the outlet of the fluid channel are located on the same side of the thermal management component; the fluid channel includes a first buffer section, a second buffer section, and a main section connecting the first buffer section and the second buffer section. The first buffer section communicates with the inlet of the fluid channel, and the second buffer section communicates with the outlet of the fluid channel; the orthographic projection of the main section on the reference plane overlaps with the orthographic projections of multiple components on the reference plane, and the reference plane is a plane perpendicular to the first direction; a part of the multiple insertion parts is inserted into the first buffer section, and another part of the multiple insertion parts is inserted into the second buffer section.

[0009] In some embodiments, from the inlet of the fluid channel to the outlet of the fluid channel, the extending direction of the fluid channel is the reference direction; along the reference direction, the distribution density of all the insertion parts located in the first buffer section shows a decreasing trend in the unit space area of the fluid channel.

[0010] In some embodiments, along the reference direction, the distribution density of all the insertion parts located in the first buffer section gradually decreases in the unit space area of the fluid channel.

[0011] In some embodiments, from the inlet of the fluid channel to the outlet of the fluid channel, the extending direction of the fluid channel is the reference direction; along the reference direction, the distribution density of all the insertion parts located in the second buffer section shows an increasing trend in the unit space area of the fluid channel.

[0012] In some embodiments, along the reference direction, the distribution density of all the insertion parts located in the second buffer section gradually increases in the unit space area of the fluid channel.

[0013] In some embodiments, the energy storage converter further includes a box body; the box body has a receiving cavity, the thermal management component is arranged in the receiving cavity, a containing cavity is defined by the first side of the thermal management component and the cavity wall of the receiving cavity, and multiple components and air-cooling modules are arranged in the containing cavity; a plurality of fans are provided, and all the fans are configured to be able to generate an annular air flow arranged around an axis in the containing cavity, the main body is located on the path of the annular air flow, and the extending direction of the axis is parallel to the first direction.

[0014] In some embodiments, at least three fans are provided; all the fans are configured to be able to generate two annular air flows arranged along the second direction in the containing cavity, and the first direction and the second direction intersect with each other.

[0015] In some embodiments, the thermal management component has a first region, a second region, and a third region arranged along a second direction, and all fans are disposed in the first region, the second region, and the third region; the fans disposed in the first region are defined as first fans, the fans disposed in the second region are defined as second fans, and the fans disposed in the third region are defined as third fans; the main body is located on the airflow path generated by the second fan, and the first fan and the second fan are configured to be able to generate one of the annular airflows, and the second fan and the third fan are configured to be able to generate the other annular airflow.

[0016] In some embodiments, a plurality of components are disposed in the first region, the second region, and the third region; the average heat generation of all the components disposed in the first region and the average heat generation of all the components disposed in the third region are both less than the average heat generation of all the components disposed in the second region.

[0017] In some embodiments, the main body includes at least one column of a plurality of heat sinks arranged at intervals along a first direction, and each column of heat sinks defines an interval channel; the inlet side of the second fan is connected to one side of the main body, and the inlet of the second fan is communicated with the interval channel.

[0018] In some embodiments, the thermal management component has a first side and a second side oppositely arranged along a third direction, and the first direction, the second direction, and the third direction intersect pairwise; compared with the second side, the second fan is disposed closer to the first side; compared with the first side, the first fan and the third fan are disposed closer to the second side.

[0019] In some embodiments, the main body includes at least one column of a plurality of heat sinks arranged at intervals along a first direction, and each column of heat sinks defines an interval channel; the inlet side of one of all the fans is connected to one side of the main body, and the inlet of the one fan is communicated with the interval channel.

[0020] In some embodiments, the first side of the thermal management component includes a plurality of mounting regions, and the energy storage converter further includes a plurality of heat spreaders, and the plurality of heat spreaders are arranged in one-to-one correspondence with the plurality of mounting regions, and the heat spreaders are disposed in the corresponding mounting regions; the plurality of heat spreaders are arranged in one-to-one correspondence with at least some of the plurality of components, and the corresponding components are mounted on the side of the heat spreader facing away from the thermal management component.

[0021] According to another aspect of the present application, an embodiment of the present application provides an energy storage system, including the energy storage converter in any one of the above embodiments.

[0022] In the above energy storage converter and energy storage system, the energy storage converter at least includes a thermal management component, components, and an air-cooling module. The air-cooling module includes a fan and a radiator. By configuring the radiator to include a main body portion and a plurality of insertion portions, and inserting the insertion portions into the fluid channels of the thermal management component, not only can the coolant in the fluid channels be further used to cool the insertion portions, but also the insertion portions can be used to disturb the flow of the coolant in the fluid channels, prolong the time for the coolant to pass through the insertion portions, further improve the cooling effect of the coolant on the insertion portions, and thus cool the main body portion. Since the radiator is located on the airflow path generated by the fan, the airflow generated by the fan can be cooled via the main body portion, thereby cooling the components on the first side of the thermal management component, and further improving the thermal management effect of the energy storage converter.

[0023] Additional aspects and advantages of the embodiments of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the detailed description of the following embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the embodiments and are not considered to be a limitation of the present application. Moreover, in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0025] Figure 1 is a three-dimensional structural schematic diagram of an energy storage converter in some embodiments of the present application;

[0026] Figure 2 is a three-dimensional structural schematic diagram of the energy storage converter in some embodiments of the present application with some structures removed;

[0027] Figure 3 is Figure 2 a three-dimensional structural schematic diagram of the structure shown with some structures removed;

[0028] Figure 4 is a three-dimensional structural schematic diagram of a thermal management component in some embodiments of the present application;

[0029] Figure 5 is an exploded structural schematic diagram of a thermal management component in some embodiments of the present application;

[0030] Figure 6 is a top-view structural schematic diagram of a thermal management component in some embodiments of the present application;

[0031] Figure 7 is a three-dimensional structural schematic diagram of a radiator in some embodiments of the present application;

[0032] Figure 8 Schematic diagram of the structure of the radiator, fan and thermal management components in some embodiments of the present application in cooperation;

[0033] Figure 9 Schematic diagram of the projection relationship between components and the main body segment in some embodiments of the present application;

[0034] Figure 10 Top view structural diagram of the distribution state of the insertion part in some embodiments of the present application;

[0035] Figure 11 Three-dimensional structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0036] Figure 12 Top view structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0037] Figure 13 Three-dimensional structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0038] Figure 14 Top view structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0039] Figure 15 Structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0040] Figure 16 Top view structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0041] Figure 17 Top view structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0042] Figure 18 Top view structural diagram of the distribution state of the insertion part in some other embodiments of the present application;

[0043] Figure 19 is Figure 2 Top view structural diagram of the structure shown;

[0044] Figure 20 Schematic diagram of the structure formed by the cooperation of multiple fans to form a circulating flow in some embodiments of the present application;

[0045] Figure 21 Three-dimensional structural diagram of the cooperation between the radiator and the second fan in some embodiments of the present application;

[0046] Figure 22Schematic three - dimensional structure diagram of the main body part and the fan of the radiator in some other embodiments of the present application;

[0047] Figure 23 Top - view structure diagram of the main body part and the fan of the radiator in some other embodiments of the present application.

[0048] Explanation of reference numerals:

[0049] Energy storage converter 10;

[0050] Thermal management component 11, first body 111, through - hole k, second body 112, fluid channel LP, first buffer section LP1, main body section LP2, second buffer section LP3, first side f1, second side f2, first area A1, second area A2, third area A3, installation area X, first side b1, second side b2;

[0051] Component 12;

[0052] Air - cooled module 13, fan 131, first fan 131a, second fan 131b, third fan 131c, radiator 132, main body part 1321, heat sink e, first end t1, second end t2, spaced channel GP, insertion part 1322;

[0053] Box body 14, first part 141, second part 142;

[0054] Heat pipe 15;

[0055] Circuit board assembly 16;

[0056] Liquid inlet joint J1, liquid outlet joint J2;

[0057] Reference plane M, first projection s1, second projection s2;

[0058] First direction D1, second direction D2, third direction D3. Detailed implementation manners

[0059] To make the above - mentioned objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0060] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0061] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0062] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "connected to", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0063] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0064] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0065] According to some embodiments of the present application, please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 which is a three-dimensional structural schematic diagram of the energy storage converter 10 in some embodiments of the present application, Figure 2 which is a three-dimensional structural schematic diagram of the energy storage converter 10 with some structures removed in some embodiments of the present application, Figure 3 is Figure 2 a three-dimensional structural schematic diagram of the structure shown in

[0066] with some structures removed. Some embodiments of the present application provide an energy storage converter 10, including a thermal management component 11, a plurality of components 12 and an air cooling module 13. The thermal management component 11 is provided with a fluid channel LP. The thermal management component 11 has a first side f1 and a second side f2 oppositely arranged along a first direction D1. The thermal management component 11 is a component for controlling and managing heat. The fluid channel LP is a channel for passing coolant. The presence of the fluid channel LP enables the thermal management component 11 to utilize the heat capacity and fluidity of the coolant to achieve efficient heat exchange. When the coolant flows in the channel, it can continuously absorb or release heat and fully exchange heat with each part of the thermal management component 11.

[0067] Exemplarily, with reference to Figures 4 to 6 , Figure 4 which is a three-dimensional structural schematic diagram of the thermal management component 11 in some embodiments of the present application, Figure 5 which is an exploded structural schematic diagram of the thermal management component 11 in some embodiments of the present application, Figure 6 which is a top view structural schematic diagram of the thermal management component 11 in some embodiments of the present application. The thermal management component 11 may include a first body 111 and a second body 112 arranged along the first direction D1. One side of the first body 111 and the second body 112 facing each other defines the fluid channel LP. It may be that a part of the side of the first body 111 facing the second body 112 is recessed to form the fluid channel LP, or a part of the side of the second body 112 facing the first body 111 is recessed to form the fluid channel LP, or both sides of the first body 111 and the second body 112 facing each other are partially recessed to form the fluid channel LP. InFigure 5 In the illustrated situation, it is illustrated that both sides of the first body 111 and the second body 112 facing each other are partially recessed to form a fluid passage LP. In Figure 5 it shows the sides of the first body 111 and the second body 112 facing each other. In Figure 6 it shows the fluid passage LP located inside the thermal management component 11 in dashed lines.

[0068] A plurality of components 12 are provided on the first side f1. The components 12 refer to various electronic elements, parts or assemblies that can be used to form an electronic device, a circuit system or other devices. The components 12 may include capacitors, relays, transformers, Hall elements, IGBT (Insulated Gate Bipolar Transistor) modules, power transistors, etc., and are not specifically limited herein. The components 12 are provided on the first side f1 of the thermal management component 11, that is, heat exchange can occur between the components 12 and the thermal management component 11.

[0069] An air-cooling module 13 is provided on the first side f1. The air-cooling module 13 includes a fan 131 and a radiator 132. With reference to Figure 7 , Figure 7 is a three-dimensional structural schematic diagram of the radiator 132 in some embodiments of the present application. The radiator 132 includes a main body portion 1321 and a plurality of insertion portions 1322 arranged at intervals. The main body portion 1321 is located on the air flow path generated by the fan 131. A plurality of insertion portions 1322 are provided on the side of the main body portion 1321 facing the thermal management component 11 along the first direction D1, and the plurality of insertion portions 1322 are inserted into the fluid passage LP.

[0070] The air-cooling module 13 is a device for heat dissipation, mainly including a fan 131 and a radiator 132. The fan 131 generates an air flow by rotating the blades of the fan 131 to promote the flow of air. The main body portion 1321 of the radiator 132 is on the air flow path generated by the fan 131 so as to better utilize the forced convection generated by the fan 131 to improve the heat exchange effect between the air flow and the radiator 132. The plurality of insertion portions 1322 provided on the main body portion 1321 can be inserted into the fluid passage LP of the thermal management component 11, which not only enables the radiator 132 to be more closely combined with the thermal management component 11, but also enables the radiator 132 to directly exchange heat with the coolant in the fluid passage LP, improving the heat exchange efficiency. Exemplarily, the insertion portion 1322 can be configured as a columnar member, a block member or other forms of members, and is not specifically limited herein.

[0071] Thus, by configuring the heat sink 132 to include a main body 1321 and multiple insertion portions 1322, and inserting the insertion portions 1322 into the fluid channel LP of the thermal management component 11, not only can the fluid in the fluid channel LP be further utilized to cool the insertion portions 1322, but the insertion portions 1322 can also be used to disrupt the coolant in the fluid channel LP, extending the time the coolant passes through the insertion portions 1322, further enhancing the cooling effect of the coolant on the insertion portions 1322, and thus cooling the main body 1321. Because the heat sink 132 is located in the airflow path generated by the fan 131, the airflow generated by the fan 131 can be cooled through the main body 1321, thereby cooling the components 12 on the first side f1 of the thermal management component 11, further enhancing the thermal management effect of the energy storage converter 10.

[0072] According to some embodiments of this application, please continue to refer to Figures 4 to 6 , and combined with reference Figure 8 and Figure 9 , Figure 8 Schematic diagram of the structure of the radiator 132, the fan 131 and the partial structure of the thermal management component 11 in some embodiments of the present application. Figure 9 This diagram illustrates the projected relationship between components 12 and the main body section LP2 in some embodiments of the present application. The fluid channel LP includes a first buffer section LP1 and a main body section LP2. The first buffer section LP1 communicates with the inlet of the fluid channel LP, while the main body section LP2 connects the first buffer section LP1 with the outlet of the fluid channel LP. The orthographic projection of the main body section LP2 on a reference plane M overlaps with the orthographic projections of multiple components 12 on the reference plane M, which is perpendicular to the first direction D1. Multiple insertion portions 1322 are inserted into the first buffer section LP1.

[0073] Specifically, refer to Figure 9 The orthographic projection of the main body segment LP2 on the reference plane M is the first projection s1, and the orthographic projection of the plurality of components 12 on the reference plane M is the second projection s2. The first projection s1 and the second projection s2 have an overlapping portion. Figure 9 As an example, the second projection s2 is shown as being located within the first projection s1. Of course, the second projection s2 may also be partially located within the first projection s1 and partially located outside the first projection s1, which is not specifically limited here.

[0074] The orthographic projection of the main body section LP2 of the fluid passage LP on the reference plane M overlaps with the orthographic projections of the multiple components 12 on the reference plane M. This means that the main body section LP2 of the fluid passage LP can be closer to the components 12, enabling the coolant to more directly absorb the heat generated by the components 12, which can further effectively reduce the temperature of the components 12 and improve the working performance and stability of the components 12. In some embodiments, a turbulence structure can be provided on the main body section LP2 to further enhance the heat exchange effect between the main body section LP2 and the components 12.

[0075] The first buffer section LP1 is a structure with a certain volume, used to regulate and buffer the flow state of the coolant. The first buffer section LP1 can be formed by widening a part of the fluid passage LP, or can be an independent cavity connected to the fluid passage LP. For Figure 6 example, the situation where the first buffer section LP1 is formed by widening a part of the fluid passage LP is illustrated.

[0076] A plurality of insertion parts 1322 are inserted into the first buffer section LP1, which can buffer and pre-regulate the coolant before it enters the main body section LP2. In this way, not only does the flow rate of the coolant become more uniform and stable before entering the main body section LP2, which helps to improve the heat exchange efficiency between the coolant in the main body section LP2 and the heat-generating components 12, enabling the coolant to absorb heat more fully when flowing through the main body section LP2 and further enhancing the heat exchange effect, but it also facilitates more sufficient heat exchange between the insertion parts 1322 and the coolant in the first buffer section LP1, thus being beneficial to enhancing the heat dissipation effect of the air-cooling assembly on the related components provided on the first side f1 of the thermal management component 11.

[0077] According to some embodiments of the present application, please refer to Figure 10 , Figure 10 is a top-view structural schematic diagram of the distribution state of the insertion parts 1322 in some embodiments of the present application. From the inlet of the fluid passage LP to the outlet of the fluid passage LP, the extending direction of the fluid passage LP is the reference direction. Along the reference direction, the distribution density of the plurality of insertion parts 1322 in the unit space region of the fluid passage LP shows a decreasing trend. In Figure 10 , the inflow direction and outflow direction of the coolant are indicated by arrows.

[0078] The "unit space region" refers to a spatial range set as a target quantity within the spatial scope defined by the fluid passage LP, that is, the unit space region is a region with a target volume. For example, the fluid passage LP can be divided into several cube regions of the same size, and each such cube region can be regarded as a unit space region.

[0079] The distribution density within a unit spatial area is used to characterize the density of the insertions 1322. For example, the distribution density within a unit spatial area refers to the proportion of space occupied by the insertions 1322 within the unit spatial area. If all insertions 1322 are of the same size and are completely located within the unit spatial area, the space occupied by the insertions 1322 within the unit spatial area is equal to the number of insertions 1322 within the unit spatial area multiplied by the space occupied by each insertion 1322. If all insertions 1322 are of different sizes and some insertions 1322 within the unit spatial area are complete and some are incomplete, the space occupied by the insertions 1322 within the unit spatial area is the sum of the total space occupied by all complete insertions 1322 within the unit spatial area and the total space occupied by all incomplete insertions 1322 within the unit spatial area. A lower distribution density of insertions 1322 within a unit spatial area indicates a sparser distribution of the insertions 1322, and vice versa. The size and shape of the selected unit spatial area depend on the different definitions of the size of the unit spatial area. After the unit space area size is defined, the size of the unit space area has relative size and shape. For example, the size of the unit space area can be 1cm 3 (cubic centimeters), or 1mm 3 (cubic millimeters), or 1100mm 3 (cubic millimeters), etc., which are not specifically limited in the present embodiment. It is understandable that the shapes and sizes of all the unit space areas are the same.

[0080] “Along the reference direction, the distribution density of the plurality of insertion portions 1322 within the unit spatial area of the fluid channel LP tends to decrease”, that is, along the reference direction, the insertion portions 1322 tend to become sparse.

[0081] In this way, the distribution density of the insert portion 1322 near the inlet of the fluid channel LP is relatively high, which can increase the contact area between the coolant and the insert portion 1322, prolong the contact time between the coolant and the insert portion 1322, enable more complete heat exchange, and improve the air-cooling and heat dissipation effect of the air-cooling module 13 on the relevant components located on the first side f1 of the thermal management component 11. At the same time, because the temperature of the coolant is relatively low when it first enters the fluid channel LP, when it comes into contact with the area with a higher distribution density of the insert portion 1322, it can transfer a portion of the cold energy to the radiator 132, so that when the coolant subsequently flows through the main section LP2 and comes into contact with the component 12, the temperature difference is relatively reduced, which helps to reduce thermal stress and improve the damage to the component 12 caused by the excessively large temperature difference between hot and cold. It can be understood that the cooperation between the air-cooling module 13 and the coolant is conducive to improving the temperature uniformity of the component 12. Furthermore, by controlling the distribution density of insert 1322, the coolant entering fluid channel LP can be initially diverted and rectified, resulting in a more even distribution of the coolant within fluid channel LP. As the coolant flows toward the outlet of fluid channel LP, the distribution density of insert 1322 gradually decreases, allowing the coolant to maintain a relatively stable distribution during flow, further improving heat dissipation uniformity.

[0082] According to some embodiments of this application, please continue to refer to Figure 10 , along the reference direction, the distribution density of the plurality of inserting portions 1322 within the unit space area of the fluid channel LP gradually decreases.

[0083] As the coolant flows through the channel, its velocity, pressure, and other characteristics change along the flow direction. Generally speaking, as the coolant flows from the inlet of fluid channel LP to the outlet of fluid channel LP, its velocity and pressure gradually decrease. By configuring the distribution density of inserts 1322 to gradually decrease, this change in fluid characteristics can be better adapted. This improves the aforementioned temperature uniformity while facilitating the flow of coolant within the circulation channel.

[0084] Of course, in other embodiments, the distribution density of the plurality of inserts 1322 within a unit spatial area of the fluid channel LP along the reference direction may be gradually reduced. By gradually adjusting the distribution density of the inserts 1322, the flow rate, direction, and turbulence of the coolant can be controlled at different stages. This is not a specific limitation.

[0085] According to some embodiments of this application, please refer to Figure 11 and Figure 12 , Figure 11 Schematic diagram of the three-dimensional structure of the distribution state of the insertion portion 1322 in other embodiments of the present application, Figure 12This is a top view structural diagram of the distribution state of the insertion parts 1322 in other embodiments of the present application. The extension direction of the fluid channel LP from the inlet to the outlet of the fluid channel LP is the reference direction. Along the reference direction, the distribution density of the multiple insertion parts 1322 in the unit space area of the fluid channel LP first increases and then decreases. Figure 12 In the figure, arrows are used to indicate the direction of coolant inflow and outflow.

[0086] In this way, the inserts 1322 show a trend of becoming denser first and then becoming sparser. Thus, the inserts 1322 near the inlet and outlet are relatively sparse, while the inserts 1322 in the middle are relatively dense. This not only improves heat dissipation uniformity as mentioned above, but also helps to reduce blockage of coolant entering and exiting the inserts, and also helps to improve the heat exchange effect of the airflow through heat exchange with the inserts 1322 in the middle.

[0087] According to some embodiments of this application, please continue to refer to Figures 10 to 12 All the insertion portions 1322 are arranged in rows along the second direction D2 and in columns along the third direction D3. The first direction D1, the second direction D2, and the third direction D3 intersect with each other. For example, the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0088] In this way, by providing regularly arranged insertion portions 1322 , it is helpful to control the distribution density of the insertion portions 1322 .

[0089] According to some embodiments of this application, please refer to Figure 13 and Figure 14 , Figure 13 Schematic diagram of the three-dimensional structure of the distribution state of the insertion part in some embodiments of the present application, Figure 14 13 is a top view structural diagram of the distribution state of the insertion parts in some embodiments of the present application, and all the insertion parts 1322 are arranged irregularly.

[0090] In this way, by providing irregularly arranged insertion parts 1322 , the heat exchange effect between the coolant and the insertion parts 1322 is further improved.

[0091] Of course, in some other embodiments, please continue to refer to Figure 15 , Figure 15 This is a schematic diagram illustrating the distribution of the inserts in some further embodiments of the present application. The distribution density of the inserts 1322 can also remain constant, and all inserts 1322 can be arranged in a rectangular array, with the distance between adjacent inserts 1322 being the same. This facilitates the arrangement of the inserts 1322 on the main body 1321. This is not a specific limitation.

[0092] According to some embodiments of this application, please continue to refer to Figures 4 to 6 , and combined with reference Figure 16 , Figure 16 This is a top view structural schematic diagram of the distribution state of the insertion part in some other embodiments of the present application. The inlet of the fluid channel LP and the outlet of the fluid channel LP are located on the same side of the thermal management component 11. The fluid channel LP includes a first buffer segment LP1, a second buffer segment LP3, and a main body segment LP2 connected to the first buffer segment LP1 and the second buffer segment LP3. The first buffer segment LP1 is connected to the inlet of the fluid channel LP, and the second buffer segment LP3 is connected to the outlet of the fluid channel LP. The orthographic projection of the main body segment LP2 on the reference plane M has an overlapping portion with the orthographic projection of the multiple components 12 on the reference plane M. The reference plane M is a plane perpendicular to the first direction D1. A portion of the multiple insertion parts 1322 is inserted into the first buffer segment LP1, and another portion of the multiple insertion parts 1322 is inserted into the second buffer segment LP3.

[0093] The understanding and advantages of the projection relationship between the main body segment LP2 and the component 12 can be understood by referring to the contents illustrated in some of the aforementioned embodiments and will not be repeated here. The understanding of the first buffer segment LP1 and the second buffer segment LP3 can be understood by referring to the first buffer segment LP1 illustrated in some of the aforementioned embodiments and will not be repeated here.

[0094] By providing a second buffer section LP3 in conjunction with the insert 1322, the cooling capacity of the coolant flowing from the main section LP2 into the second buffer section LP3 can be further utilized, thereby further enhancing the heat exchange effect. Furthermore, by providing the first and second buffer sections LP1 and LP3, the coolant is buffered both before entering the main section LP2 and after exiting the main section LP2, further improving the flow stability of the coolant within the main section LP2. The presence of buffer sections both upstream and downstream of the main section LP2 also allows for more efficient heat exchange between the coolant within the main section LP2 and the component 12, thereby enhancing the heat dissipation effect.

[0095] According to some embodiments of this application, please refer to Figure 16 From the inlet of the fluid channel LP to the outlet of the fluid channel LP, the extending direction of the fluid channel LP is the reference direction. Along the reference direction, the distribution density of all the inserting portions 1322 located in the first buffer section LP1 within the unit space area of the fluid channel LP tends to decrease.

[0096] This can be understood by referring to the relevant implementation methods and advantages of the distribution density of the insertion portion 1322 in the first buffer section LP1 illustrated in some of the aforementioned embodiments, and will not be repeated here.

[0097] According to some embodiments of this application, please continue to refer to Figure 16 , along the reference direction, the distribution density of all the inserting portions 1322 located in the first buffer section LP1 within the unit space area of the fluid channel LP gradually decreases.

[0098] This can be understood by referring to the relevant implementation methods and advantages of the distribution density of the insertion portion 1322 in the first buffer section LP1 illustrated in some of the aforementioned embodiments, and will not be repeated here.

[0099] According to some embodiments of this application, please continue to refer to Figure 16 From the inlet of the fluid channel LP to the outlet of the fluid channel LP, the extending direction of the fluid channel LP is the reference direction. Along the reference direction, the distribution density of all the inserting portions 1322 located in the second buffer section LP3 within the unit space area of the fluid channel LP tends to increase.

[0100] By increasing the distribution density of inserts 1322 within the second buffer section LP3, the coolant can be blocked and diverted to a certain extent, slowing down faster-flowing coolant and accelerating slower-flowing coolant. This results in a more uniform and stable coolant flow at the outlet of fluid channel LP, which helps improve the stability and reliability of the entire heat pipe component. Furthermore, the increasing distribution density of inserts 1322 can create more turbulence and eddies within the second buffer section LP3, promoting mixing of the coolant. This helps improve temperature stratification in the coolant, making the coolant temperature more uniform and further improving heat exchange efficiency. It also reduces scaling and other problems caused by localized overheating of the coolant.

[0101] According to some embodiments of this application, please continue to refer to Figure 16 , along the reference direction, the distribution density of all the inserting portions 1322 located in the second buffer section LP3 within the unit space area of the fluid channel LP gradually increases.

[0102] As illustrated in some of the aforementioned embodiments, as the coolant flows from the inlet of fluid channel LP to the outlet, its velocity and pressure gradually decrease. By configuring the insertion portions 1322 within the second buffer section LP3 to have a gradually increasing distribution density, this change in fluid properties can be better accommodated. This improves the aforementioned temperature uniformity while extending the coolant's residence time within the flow channel, further facilitating more efficient heat exchange between the coolant in the main section LP2 and the component 12.

[0103] Of course, in some other embodiments, along the reference direction, the distribution density of all the insertion parts 1322 located within the second buffer section LP3 can increase step by step within the unit spatial region of the fluid channel LP. By adjusting the distribution density of the insertion parts 1322 step by step, the flow rate, flow direction, and degree of turbulence of the coolant can be controlled at different stages. No specific limitation is made here.

[0104] It should be noted that when, along the reference direction, the distribution density of all the insertion parts 1322 located within the first buffer section LP1 shows a decreasing trend within the unit spatial region of the fluid channel LP, and the distribution density of all the insertion parts 1322 located within the second buffer section LP3 shows an increasing trend, in addition to having the advantages demonstrated in the foregoing some embodiments, the heat exchange effect between the cooling liquid within the main section LP2 and the component 12 can be jointly enhanced through the mutual cooperation among the first buffer section LP1, the second buffer section LP3, and the insertion parts 1322.

[0105] It should also be noted that when "a part of all the insertion parts 1322 is inserted into the first buffer section LP1 and the other part of the plurality of insertion parts 1322 is inserted into the second buffer section LP3", the distribution density of the insertion parts 1322 within the first buffer section LP1 and the distribution density of the insertion parts 1322 within the second buffer section LP3 can also be implemented in accordance with the relevant implementation manners of the distribution density of the insertion parts 1322 within the first buffer section LP1 when "all the insertion parts 1322 are inserted into the first buffer section LP1". No specific limitation is made here. Exemplarily, taking Figure 17 and Figure 18 as an example, Figure 17 is a top view structural schematic diagram of the distribution state of the insertion parts in some other embodiments of the present application, Figure 18 is a top view structural schematic diagram of the distribution state of the insertion parts in some further embodiments of the present application, showing that the change trend of the distribution density of the insertion parts 1322 within the first buffer section LP1 is first increasing and then decreasing, and the change trend of the distribution density of the insertion parts 1322 within the second buffer section LP3 is first increasing and then decreasing. The insertion parts 1322 are generally arranged sparsely first, then densely, and then sparsely within the corresponding buffer sections. Thus, as described above, in addition to the advantages such as being beneficial to improving the heat dissipation uniformity, it is not only beneficial to improve the situation of blockage when the coolant enters and exits the insertion parts, but also beneficial to enhancing the heat exchange effect of the air flow through the heat exchange with the insertion parts 1322 in the middle part.

[0106] In addition, continuing to take Figure 17 and Figure 18 as an example, in some implementation manners, the insertion parts 1322 can be arranged regularly or irregularly, and can be combined with the foregoing some embodiments such asFigures 11 to 14 It can be understood according to the illustrated situation and will not be elaborated here.

[0107] According to some embodiments of the present application, please continue to refer to Figure 5 and Figure 8 , two recesses recessed in a direction away from the first body 111 are provided on the second body 112 of the heat management component 11. The two recesses cooperate with the first body 111 to form a first buffer section LP1 and a second buffer section LP3. Correspondingly, a through hole k is provided on the first body 111, and the insertion part 1322 is inserted into the first buffer section LP1 through the through hole k, and the main body part 1321 is hermetically connected to the first body 111.

[0108] Since the main bodies of the first buffer section LP1 and the second buffer section LP3 are formed on the second body 112, the space on the side of the second body 112 away from the first body 111 can be utilized, which is beneficial to the arrangement of related components on the side of the first body 111 away from the second body 112.

[0109] Of course, when the insertion part 1322 is inserted into the first buffer section LP1 and the second buffer section LP3, two through holes k can be provided on the first body 111, which will not be elaborated here. In addition, in some embodiments, at least some of all the insertion parts 1322 can be inserted into the first buffer section LP1. Specifically, all the insertion parts 1322 illustrated in the foregoing some embodiments can be inserted into the first buffer section LP1, or a part of all the insertion parts 1322 illustrated in the foregoing some embodiments can be inserted into the first buffer section LP1, and the other part can be inserted into the second buffer section LP3. Of course, it is also possible that a part of all the insertion parts 1322 is inserted into the first buffer section LP1 or the second buffer section LP3, and the other part is inserted into the main body section LP2. No specific limitation is made here.

[0110] According to some embodiments of the present application, please continue to refer to Figure 1 , Figure 2 and Figure 19 , Figure 19 is Figure 2 a top view structural schematic diagram of the illustrated structure. The energy storage converter 10 further includes a box body 14. The box body 14 has a receiving cavity. The heat management component 11 is arranged in the receiving cavity. The first side f1 of the heat management component 11 and the cavity wall of the receiving cavity define a receiving cavity. A plurality of components 12 and an air-cooling module 13 are arranged in the receiving cavity. A plurality of fans 131 are provided. All the fans 131 are configured to be able to generate an annular air flow arranged around an axis in the receiving cavity. The main body part 1321 is located on the path of the annular air flow, and the extending direction of the axis is parallel to the first direction D1.

[0111] The housing 14 may include a first part 141 and a second part 142, and the first part 141 and the second part 142 cooperate to form a receiving cavity. Among them, Figure 2 FIG. is a schematic structural view of the first part 141 removed. Among them, a liquid inlet joint J1 communicating with the inlet of the fluid passage LP and a liquid outlet joint J2 communicating with the outlet of the fluid passage LP may be provided on the second part 142.

[0112] All the fans 131 generate an annular air flow arranged around the axis, and the main body 1321 of the radiator 132 is located on this air flow path, enabling the main body 1321 to be in full contact with the air flow. Since the annular air flow can exchange heat with the main body 1321 of the radiator 132, the annular air flow can dissipate heat from the related components provided on the first side f1 of the thermal management component 11. The combination of the thermal management component 11 and the annular air flow air cooling forms a dual heat dissipation mechanism. The thermal management component 11 can effectively take away a large amount of heat generated by the components 12, and the cooperation between the annular air flow and the radiator 132, and the cooperation between the radiator 132 and the thermal management component 11 further strengthen the heat dissipation of the entire accommodation cavity. The two heat dissipation methods cooperate with each other, can better meet the heat dissipation requirements under different working conditions, and improve the heat dissipation performance and adaptability of the energy storage converter 10.

[0113] It should be noted that the annular air flow can form a continuous air flow path around the main body 1321 of the radiator 132 and related heat generating components, comprehensively covering the area that needs to be cooled. Compared with the traditional linear or local air flow, it can contact the heat generating surface more fully, take away more heat, thereby improving the heat dissipation efficiency and being beneficial to improving the temperature uniformity of the overall device.

[0114] According to some embodiments of the present application, please refer to Figure 20 , Figure 20 FIG. is a schematic structural view of multiple fans 131 cooperating to form a circulating flow in some embodiments of the present application. At least three fans 131 are provided. All the fans 131 are configured to be able to generate two annular air flows arranged along the second direction D2 in the accommodation cavity, and the first direction D1 and the second direction D2 intersect with each other.

[0115] Exemplarily, with reference to Figure 20 , the situation where two annular air flows are arranged along the second direction D2 is shown. The first direction D1 and the second direction D2 may be perpendicular to each other.

[0116] By forming two annular air flows, a relatively uniform air flow distribution can be formed in the accommodation cavity, which can more comprehensively cover the related components that need to be cooled, improve the situation of heat dissipation dead angles, and improve the heat dissipation efficiency.

[0117] According to some embodiments of the present application, please continue to refer to Figure 20, the thermal management component 11 has a first area A1, a second area A2, and a third area A3 arranged along the second direction D2, and all the fans 131 are disposed in the first area A1, the second area A2, and the third area A3. The fan 131 disposed in the first area A1 is defined as the first fan 131a, the fan 131 disposed in the second area A2 is defined as the second fan 131b, and the fan 131 disposed in the third area A3 is defined as the third fan 131c. The main body portion 1321 is located on the air flow path generated by the second fan 131b. The first fan 131a and the second fan 131b are configured to be able to generate one of the annular air flows, and the second fan 131b and the third fan 131c are configured to be able to generate the other annular air flow.

[0118] Among them, in Figure 20 , the first area A1, the second area A2, and the third area A3 are schematically shown in dotted lines, but not limited thereto. There may be boundaries on the thermal management component 11 to distinguish each area, or there may be no boundaries to distinguish each area.

[0119] Since the main body portion 1321 is located on the air flow path generated by the second fan 131b, the second fan 131b can directly dissipate heat from the main body portion 1321. And by cooperating with the second fan 131b and the third fan 131c respectively to generate two annular air flows, the air flow can be more evenly distributed in different areas of the thermal management component 11, thereby improving the situation of local overheating, and further being beneficial to improving the overall temperature uniformity. Since the second fan 131b can form a circulation with the first fan 131a and the third fan 131c respectively, the two circulations will form the intersection and mixing of the air flow in the second area A2, increasing the air flow velocity and disturbance degree in the second area A2. This enables the heat in the second area A2 to be taken away by the air flow more quickly, enhancing the heat exchange efficiency and being beneficial to the heat dissipation of the heat-generating components in the second area A2.

[0120] According to some embodiments of the present application, please continue to refer to Figure 20 , a plurality of components 12 are disposed in the first area A1, the second area A2, and the third area A3. The average heat generation of all the components 12 disposed in the first area A1 and the average heat generation of all the components 12 disposed in the third area A3 are both less than the average heat generation of all the components 12 disposed in the second area A2.

[0121] In the embodiments of the present application, the calorific value refers to the calorific value generated by the component 12 when it operates at a rated voltage and reaches a stable state (the calorific value is relatively stable). Taking all components 12 located in the first area A1 as an example, the rated voltages corresponding to all components 12 located in the first area A1 may be different or the same. The average calorific value of all components 12 located in the first area A1 can be the average calorific value corresponding to all components 12 located in the first area A1 when all components 12 located in the first area A1 operate at the rated voltage corresponding to each component 12 and reach a stable state. The "average calorific value of all components 12 located in the second area A2" and the "average calorific value of all components 12 located in the third area A3" can be understood with reference to the "average calorific value of all components 12 located in the first area A1" and will not be further explained here.

[0122] Components 12 with low heat output are less affected by the ambient temperature. Placing components 12 with high heat output in separate areas can reduce thermal interference from components 12 with low heat output. Heat from the second area A2 can be more quickly removed by airflow than from the first and third areas A3. Therefore, arranging components 12 with relatively high heat output in the second area A2 and components with relatively low heat output in the first and third areas A1 and A3 allows for better utilization of the two circulating airflows to dissipate heat in different areas, improving heat dissipation.

[0123] According to some embodiments of this application, please refer to Figure 21 , Figure 21 This is a schematic diagram of the three-dimensional structure of the heat sink 132 and the second fan 131b in some embodiments of the present application. The main body 1321 includes at least one row of a plurality of heat sink fins e spaced apart along a first direction D1. Each row of heat sink fins e defines a spacing channel GP. The inlet side of the second fan 131b is connected to a side of the main body 1321 and communicates with the spacing channel GP.

[0124] The heat sink e can be provided in one row, two rows or other number of rows, which is not specifically limited here. Figure 21 As an example, the case where the heat sink e is provided in two rows is illustrated.

[0125] In this way, the air flow entering the inlet side of the second fan 131b will first pass through the spaced channels GP. That is to say, the heat sink e will divide the air flow entering the inlet side of the second fan 131b, enabling the air flow to more evenly contact various parts of the main body 1321 of the radiator 132, and increasing the actual contact area between the air flow and the heat sink e. More air flow contacts the surface of the heat sink e, which can accelerate the heat exchange between the main body 1321 of the radiator 132 and the air flow, thereby improving the overall heat dissipation efficiency. At the same time, the air flow divided by the heat sink e can better break the air flow boundary layer, reduce the thermal resistance, and further enhance the heat exchange effect.

[0126] It should be noted that the heat sink e can be configured as a flat sheet structure, a wavy sheet structure, or an inclined sheet structure. The sizes of the spaced channels GP formed by all the heat sinks e can be different from each other, completely the same, or partially the same. No specific limitation is made here.

[0127] According to some embodiments of the present application, please continue to refer to Figure 20 , the thermal management component 11 has a first side b1 and a second side b2 oppositely arranged along the third direction D3. The first direction D1, the second direction D2, and the third direction D3 intersect pairwise. Compared with the second side b2, the second fan 131b is arranged closer to the first side b1. Compared with the first side b1, the first fan 131a and the third fan 131c are arranged closer to the second side b2.

[0128] Exemplarily, in the embodiments of the present application, the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other pairwise.

[0129] Such a layout can enable the air flow generated by the fans 131 to cover more areas. Through the synergistic effect among the fans 131, a good air flow circulation can be formed, enabling the air to fully flow, thereby dissipating heat from each area, and further improving the overall heat dissipation effect.

[0130] According to some embodiments of the present application, please continue to refer to Figure 2 , Figure 3 and Figure 7 , the main body 1321 includes at least one row of a plurality of heat sinks e arranged at intervals along the first direction D1, and each row of heat sinks e defines a spaced channel GP. The inlet side of one of all the fans 131 is connected to one side of the main body 1321, and the inlet of this one fan 131 is communicated with the spaced channel GP.

[0131] The inlet side of the fan 131 is connected to one side of the main body portion 1321, and the inlet of the fan 131 communicates with the spaced channel GP. The advantages can be understood by referring to the advantages of the inlet side of the aforementioned second fan 131b being connected to one side of the main body portion 1321, and will not be elaborated here.

[0132] It should be noted that when the inlet side of the fan 131 is connected to one side of the main body portion 1321 and the inlet of the fan 131 communicates with the spaced channel GP, when coordinating the distribution density of the insertion portion 1322 in the first buffer section LP1, due to the different distribution densities of the insertion portion 1322, the heat exchange degrees of different regions where the main body portion 1321 contacts the insertion portion 1322 are different. In the region where the density of the insertion portion 1322 is large, the contact area with the coolant is large, and the heat exchange is more sufficient, and the temperature of the corresponding part of the main body portion 1321 will be lower. In the region where the density of the insertion portion 1322 is small, the heat exchange is relatively weak, and the temperature of the corresponding part of the main body portion 1321 will be relatively high. Different temperatures of each part of the main body portion 1321 will cause different convection situations when the air flow passes through. In the region with a higher temperature, the air is heated and expands, and the density becomes smaller, and an upward convection movement will be generated, attracting the surrounding air flow to flow towards this region, and the flow rate of the air flow will be faster. In the region with a lower temperature, the air density is larger, the air flow is relatively stable, and even a local air sinking phenomenon may be formed, and the flow rate of the air flow will be slower. In this way, when the air flow passes through the main body portion 1321 with different temperatures, the direction and speed of the air flow will change, forming a more complex convection, which is beneficial to the mixing of the air flow. It can be understood that since the closer to the inlet of the fan 131, the faster the air flow rate, it is possible to cooperate with the main body portion 1321 with temperature differences to form a more uniform air flow and improve the heat dissipation effect of the air flow on the corresponding components.

[0133] Certainly, when the insertion portion 1322 in the first buffer section LP1 and the insertion portion 1322 in the second buffer section LP3 respectively have the distribution densities shown in some of the aforementioned embodiments, when coordinating with the inlet side of the fan 131 being connected to one side of the main body portion 1321, the advantages can be referred to the content shown above and will not be elaborated here. Different from the situation of only controlling the distribution density of the insertion portion 1322 in the first buffer section LP1, since the first buffer section LP1 and the second buffer section LP3 can play a synergistic role, it is more beneficial to improve the overall temperature uniformity.

[0134] According to some embodiments of the present application, please refer to Figure 22 and Figure 23 , Figure 22 is a three-dimensional structural schematic diagram of the cooperation between the main body portion 1321 of the radiator 132 and the fan 131 in some other embodiments of the present application, Figure 23A top view structural schematic diagram of the cooperation between the main body portion 1321 of the radiator 132 and the fan 131 in some other embodiments of the present application. The main body portion 1321 includes a plurality of heat dissipation fins e arranged at intervals along the second direction D2. An interval channel GP is defined between two adjacent heat dissipation fins e along the second direction D2. The fan 131 is connected to one side of the main body portion 1321 along the third direction D3. The inlet side of the fan 131 faces the main body portion 1321, and the inlet of the fan 131 is communicated with the interval channel GP. The heat dissipation fins e extend longitudinally along the first direction D1, and the heat dissipation fins e have a first end t1 and a second end t2 arranged opposite to each other along the third direction D3. The first end t1 of the heat dissipation fin e is the end facing the fan 131, and the second end t2 of the heat dissipation fin e is the end facing away from the fan 131. The first ends t1 of all the heat dissipation fins e are close to each other, and the second ends t2 of all the heat dissipation fins e are distributed in a divergent manner.

[0135] Since one ends of all the heat dissipation fins e are close to each other and the other ends are distributed in a divergent manner, the interval channel GP becomes wider as it is farther away from the inlet of the fan 131. Thus, when the air flow enters the interval channel GP from the second end t2 of the heat dissipation fin e, the flow velocity of the air flow is slower than that of the air flow near the inlet of the fan 131. Furthermore, the residence time of the air flow can be increased, making the heat exchange between the air flow and the heat dissipation fins e more sufficient. Therefore, this changing air flow velocity and residence time contribute to more efficiently conducting heat exchange between the air flow and the heat dissipation fins e, improving the overall heat dissipation efficiency.

[0136] According to some embodiments of the present application, please continue to refer to Figure 3 and Figure 4 , the first side f1 of the heat management component 11 includes a plurality of installation areas X. The energy storage converter 10 further includes a plurality of heat pipes 15. The plurality of heat pipes 15 are arranged in one-to-one correspondence with the plurality of installation areas X, and the heat pipes 15 are disposed in the corresponding installation areas X. The plurality of heat pipes 15 are arranged in one-to-one correspondence with at least some of the plurality of components 12. The corresponding component 12 is installed on the side of the heat pipe 15 facing away from the heat management component 11. It should be noted that the components 12 disposed on the heat pipes 15 are not shown in Figure 3 and Figure 4 .

[0137] The heat pipe 15 is a flat heat dissipation component with high efficient heat conduction ability, usually made of materials with high thermal conductivity, such as metals like copper and aluminum or some high-performance composite materials. The heat pipe 15 utilizes the phase change material or high thermal conductivity structure inside to achieve rapid heat transfer and uniform distribution. When one side of the heat pipe 15 contacts the component 12, the heat will quickly conduct through the plate material to the whole heat pipe 15. Meanwhile, the phase change material inside the heat pipe 15 will absorb heat and undergo a phase change in the high-temperature area, and then release heat and undergo a reverse phase change in the lower-temperature area. In this way, rapid heat transfer and homogenization are achieved, making the temperature difference on the surface of the heat pipe 15 extremely small, playing the role of temperature equalization.

[0138] Exemplarily, the component 12 can be an IGBT. Of course, the component 12 can also be an inductor, and no specific limitation is made here.

[0139] In this way, by setting the heat pipe 15, not only can the temperature distribution on the surface of the component 12 be made more uniform, thereby improving the performance stability and reliability of the device, reducing the thermal stress and device aging caused by uneven temperature, but also the heat generated by the component 12 can be quickly transferred to the heat management component 11, and the heat is taken away by the coolant in the heat management component 11, effectively improving the heat dissipation efficiency.

[0140] It should be noted that the heat pipe 15 can be embedded in the first side f1 of the heat management component 11. The heat pipe 15 can be flush with the heat management component 11 or protrude from the heat management component 11, and no specific limitation is made here. The heat pipe 15 can be connected to the heat management component 11 by means of thermal conductive adhesive. Of course, the heat pipe 15 can also be connected to the heat management component 11 by welding. No specific limitation is made here.

[0141] In some embodiments, please continue to refer to Figure 2 , the energy storage converter 10 further includes a circuit board assembly 16, and the circuit board assembly 16 is arranged on the first side f1 of the heat management component 11. The circuit board assembly 16 includes a circuit board and related devices arranged on the circuit board. The circuit board assembly 16 can be used to realize the electrical connection between the components 12. Of course, the energy storage converter 10 can also include other components, and no specific limitation is made here.

[0142] According to some embodiments of the present application, please continue to refer to Figure 1, the energy storage converter 10 may have at least one of a photovoltaic interface, a battery interface, a grid input interface, a DC output interface, and an AC output interface. Among them, the energy storage converter 10 can be connected to a solar cell or other renewable energy power generation system through the photovoltaic interface, and the energy storage converter 10 is connected to the battery through the battery interface. The battery can store electrical energy so that the electrical energy of the battery can be converted and output through the energy storage converter 10. The grid input interface can access the high-voltage electrical energy of the grid and output it to low-voltage electrical equipment or systems after being stepped down by the energy storage converter 10. The AC output interface can be connected to products that require alternating current, such as household appliances. The energy storage converter 10 converts the alternating current into direct current and outputs it to the electrical appliances. The DC output interface can be connected to devices that require direct current, such as charging piles.

[0143] In this way, it can be flexibly set according to actual usage requirements, improving the adaptability of the energy storage converter 10 and meeting the usage requirements in different scenarios. Specific limitations are not made here.

[0144] According to some embodiments of the present application, an energy storage system is provided, including the energy storage converter 10 in any of the above embodiments.

[0145] In some embodiments, the energy storage system further includes a battery, and the aforementioned energy storage converter 10 is electrically connected to the battery. The energy storage converter 10 can convert energy generated by solar energy, wind power generation, or fuel cells into direct current and store it in the battery, and output the electrical energy in the battery when needed. The energy storage system can provide reliable energy reserves for users and provide backup power for users when power outages or power shortages occur, facilitating user use.

[0146] The energy storage system also has the same advantages as those of the aforementioned energy storage converter 10, which will not be elaborated here.

[0147] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0148] The above-described embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An energy storage converter, characterized in that, Comprising: A thermal management component provided with a fluid channel; the thermal management component has a first side and a second side oppositely arranged in a first direction; an inlet of the fluid channel and an outlet of the fluid channel are located on the same side of the thermal management component; the fluid channel includes a first buffer section, a second buffer section, and a main body section connecting the first buffer section and the second buffer section, the first buffer section communicates with the inlet of the fluid channel, and the second buffer section communicates with the outlet of the fluid channel; A plurality of components, arranged on the first side; A positive projection of the main body section on a reference plane and a positive projection of the plurality of components on the reference plane have an overlapping part, and the reference plane is a plane perpendicular to the first direction; And An air-cooling module, arranged on the first side; the air-cooling module includes a fan and a radiator, the radiator includes a main body part and a plurality of insertion parts arranged at intervals, the main body part is located on an air flow path generated by the fan, and the plurality of insertion parts are arranged on a side of the main body part facing the thermal management component along the first direction; Wherein, a part of the plurality of insertion parts is inserted into the first buffer section, and another part of the plurality of insertion parts is inserted into the second buffer section; from the inlet of the fluid channel to the outlet of the fluid channel, the extending direction of the fluid channel is a reference direction; along the reference direction, the distribution density of all the insertion parts located in the first buffer section in the unit space area of the fluid channel shows a decreasing trend, and the distribution density of all the insertion parts located in the second buffer section in the unit space area of the fluid channel shows an increasing trend.

2. The energy storage converter according to claim 1, wherein Along the reference direction, the distribution density of all the insertion parts located in the first buffer section in the unit space area of the fluid channel gradually decreases.

3. The energy storage converter according to claim 1, wherein Along the reference direction, the distribution density of all the insertion parts located in the second buffer section in the unit space area of the fluid channel gradually increases.

4. The energy storage converter according to any one of claims 1-3, characterized in that, The energy storage converter further includes a box body; The box body has a receiving cavity, the thermal management component is arranged in the receiving cavity, a receiving cavity is defined by the first side of the thermal management component and the cavity wall of the receiving cavity, and the plurality of components and the air-cooling module are arranged in the receiving cavity; A plurality of the fans are provided, and all the fans are configured to be able to generate an annular air flow arranged around an axis in the receiving cavity, the main body part is located on the path of the annular air flow, and the extending direction of the axis and the first direction are parallel to each other.

5. The energy storage converter according to claim 4, wherein, At least three of the fans are provided; all the fans are configured to be able to generate two annular air flows arranged in a second direction in the receiving cavity, and the first direction and the second direction intersect with each other.

6. The energy storage converter according to claim 5, characterized in that, The thermal management component has a first area, a second area and a third area arranged along the second direction, and all the fans are arranged in the first area, the second area and the third area; Define the fan arranged in the first area as the first fan, the fan arranged in the second area as the second fan, and the fan arranged in the third area as the third fan; The main body is located on an airflow path generated by the second fan. The first fan and the second fan are configured to generate one of the annular airflows, and the second fan and the third fan are configured to generate the other of the annular airflows.

7. The energy storage converter according to claim 6, wherein The plurality of components are arranged in the first area, the second area and the third area; An average heating value of all the components arranged in the first area and an average heating value of all the components arranged in the third area are both smaller than an average heating value of all the components arranged in the second area.

8. The energy storage converter according to claim 6, characterized in that, The main body includes at least one row of a plurality of heat sinks spaced apart along the first direction, and each row of heat sinks defines a spaced channel; The inlet side of the second fan is connected to one side of the main body, and the inlet of the second fan is communicated with the partition channel.

9. The energy storage converter according to claim 6, characterized in that, The thermal management component has a first side and a second side arranged opposite to each other along a third direction, and the first direction, the second direction and the third direction intersect each other; Compared to the second side, the second fan is disposed closer to the first side; compared to the first side, the first fan and the third fan are disposed closer to the second side.

10. The energy storage converter according to claim 4, wherein The main body includes at least one row of a plurality of heat sinks spaced apart along the first direction, and each row of heat sinks defines a spaced channel; The inlet side of one of the fans is connected to one side of the main body, and the inlet of the one of the fans is communicated with the interval channel.

11. The energy storage converter according to any one of claims 1-3, characterized in that, The first side of the thermal management component includes a plurality of installation areas, and the energy storage converter further includes a plurality of temperature averaging plates, the plurality of temperature averaging plates are arranged in a one-to-one correspondence with the plurality of installation areas, and the temperature averaging plates are arranged in the corresponding installation areas; The plurality of temperature averaging plates are arranged in a one-to-one correspondence with at least some of the plurality of components, and the corresponding components are installed on a side of the temperature averaging plate away from the thermal management component.

12. An energy storage system, characterized in that, It comprises the energy storage converter according to any one of claims 1 to 11.

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