Energy storage converter and energy storage system thereof

Abstract

The embodiment of the invention relates to the technical field of energy storage, and provides an energy storage converter and an energy storage system thereof. The capacitor assembly and the inductor assembly are arranged on the two sides of the plate body assembly respectively; the two ends of the connecting assembly are electrically connected with the capacitor assembly and the inductor assembly respectively; and the heat dissipation assembly is provided with a heat dissipation air channel, and at least part of the capacitor assembly is located in the heat dissipation air channel, so that the problem of low working efficiency of an inductor and a capacitor in the energy storage converter in the prior art is at least favorably solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, and in particular to an energy storage converter and an energy storage system thereof. BACKGROUND

[0002] The energy storage converter is a key part of the entire energy storage system responsible for electric energy conversion. It can convert direct current (DC) from photovoltaic panels, wind turbines or other renewable energy devices into alternating current (AC) for user use, or convert AC into DC for storage in batteries. This bidirectional energy conversion function is crucial for balancing power supply and demand and improving renewable energy utilization.

[0003] The heat dissipation design of traditional energy storage converters mainly focuses on the cooling of battery clusters and power regulation hardware, but does not adequately consider the specific heat dissipation needs of inductors and capacitors. This results in poor temperature control of these components during high load operation, affecting the stability and safety of the energy storage converter. SUMMARY

[0004] The present application provides an energy storage converter and an energy storage system thereof, which at least helps to improve the low efficiency of inductors and capacitors inside the energy storage converter in the prior art.

[0005] According to some embodiments of the present application, the present application provides an energy storage converter, which includes: a board assembly; a capacitor assembly and an inductor assembly, the capacitor assembly and the inductor assembly are respectively arranged on both sides of the board assembly; a connection assembly, both ends of the connection assembly are respectively electrically connected with the capacitor assembly and the inductor assembly; and a heat dissipation assembly, the heat dissipation assembly has a heat dissipation air duct, at least part of the capacitor assembly is located in the heat dissipation air duct.

[0006] In some embodiments, the board assembly includes an inductor mounting plate and a capacitor mounting plate arranged at intervals along a first direction, the inductor assembly is arranged on the inductor mounting plate, the capacitor assembly is arranged on the capacitor mounting plate, and the connection assembly is arranged between the inductor mounting plate and the capacitor mounting plate.

[0007] In some embodiments, the inductor assembly is a plurality of inductor assemblies, the plurality of inductor assemblies are arranged at intervals along the length direction of the inductor mounting plate, the inductor mounting plate is provided with inductor mounting grooves for mounting the inductor assemblies, and the inductor assemblies are clamped with the inductor mounting grooves to position the inductor assemblies.

[0008] In some embodiments, the capacitor assembly is a plurality of capacitor assemblies, the plurality of capacitor assemblies are arranged at intervals along the length direction of the capacitor mounting plate, and the plurality of capacitor assemblies and the plurality of inductor assemblies are arranged one-to-one.

[0009] In some embodiments, the connection assembly is arranged opposite to each inductor assembly.

[0010] In some embodiments, the connecting assembly is arranged opposite to the gap between the two adjacent inductance assemblies.

[0011] In some embodiments, the connecting assembly is arranged opposite to the gap between the two adjacent inductance assemblies.

[0012] In some embodiments, the connecting assembly is arranged opposite to the gap between the two adjacent inductance assemblies.

[0013] In some embodiments, the heat dissipation assembly further comprises a flow guiding air duct arranged on the plate body assembly, the flow guiding air duct penetrating through the plate body assembly, and the flow guiding air duct being in communication with the heat dissipation air duct so as to guide the heat of the inductance assembly into the heat dissipation air duct through the flow guiding air duct.

[0014] In some embodiments, the flow guiding air duct is a plurality of flow guiding air ducts, and the plurality of flow guiding air ducts are arranged around the inductance assembly.

[0015] In some embodiments, the inductance assembly is a plurality of inductance assemblies, the plurality of inductance assemblies are arranged at intervals along the length direction of the plate body assembly, and the air inflow port of the flow guiding air duct is arranged between two adjacent inductance assemblies.

[0016] In some embodiments, the flow guiding air duct comprises a plurality of flow guiding channels, the plurality of flow guiding channels are in communication with the heat dissipation air duct, and the longitudinal cross-sectional area of the flow guiding channel gradually decreases in the outflow direction of the air flow.

[0017] In some embodiments, the heat dissipation assembly further comprises a flow guiding channel, and the flow guiding channel comprises a first flow guiding section, a second flow guiding section and a third flow guiding section connected in sequence.

[0018] In some embodiments, the plate body assembly comprises a capacitor mounting plate, a main plate body and an inductance mounting plate, the capacitor mounting plate and the inductance mounting plate are arranged on the two side surfaces of the main plate body respectively, the first flow guiding section is arranged on the capacitor mounting plate, the second flow guiding section is arranged on the main plate body, and the third flow guiding section is arranged on the inductance mounting plate.

[0019] In some embodiments, the energy storage converter further comprises a mounting bracket and a flow guiding fan, the mounting bracket is mounted on the main plate body, the flow guiding fan is arranged on the mounting bracket and arranged opposite to the heat dissipation air duct, and the flow guiding fan is a plurality of flow guiding fans arranged at intervals along the length direction of the inductance mounting plate.

[0020] In some embodiments, the energy storage converter further comprises the capacitor assembly and the inductance assembly arranged at intervals along the length direction of the energy storage converter, a main heat sink and an inverter inductance assembly, and the inverter inductance assembly is mounted on the bus bar.

[0021] According to some embodiments of the present application, another aspect of the embodiments of the present application provides an energy storage system comprising an energy storage converter, and the energy storage converter is the energy storage converter described above.

[0022] The technical scheme provided by the embodiment of the application has at least the following advantages.

[0023] The application can more effectively filter high-frequency noise in the energy storage converter, improve stability in the inverting process, reduce harmonic interference, so that the AC output is more pure, and the capacitor components are hung in the heat dissipation air duct, and are arranged by using the gap between the fans, so that the problem of insufficient installation space of the capacitor components under high power density is solved, and effective separation of the capacitor and the inductor is ensured, and the space utilization rate inside the energy storage converter is improved.

[0024] In the scheme, the heat dissipation assembly directly performs efficient heat dissipation on the inductor assembly by setting a dedicated heat dissipation air duct, so that the inductor assembly can be kept within a safe working temperature range even under high load, and meanwhile, the capacitor assembly is located inside the heat dissipation air duct and is indirectly cooled by the airflow generated by the fan, so that the service life of the capacitor is effectively prolonged, and the thermal stability of the energy storage converter is improved.

[0025] Further, the application also enhances electromagnetic compatibility: the increase of the inductor assembly and the reasonable arrangement of the capacitor assembly help to reduce electromagnetic interference and improve the overall electromagnetic compatibility of the energy storage converter, so that the battery management system can still stably operate in a complex electromagnetic environment. BRIEF DESCRIPTION OF DRAWINGS

[0026] One or more embodiments are exemplarily illustrated by the figures in the drawings corresponding thereto, and the exemplarily illustrations do not constitute a limitation on the embodiments, unless specifically stated otherwise, and the figures in the drawings do not constitute a proportional limitation; in order to more clearly illustrate the technical scheme in the embodiments or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, other drawings can be obtained from these drawings by those skilled in the art without any creative labor.

[0027] Figure 1 It is a structural schematic view of an inductor assembly and a capacitor assembly arranged on both sides of a plate assembly in an energy storage converter;

[0028] Figure 2 It is a structural schematic view of an inductor mounting plate in an embodiment of the application;

[0029] Figure 3 It is a structural schematic view of a capacitor mounting plate in an embodiment of the application;

[0030] Figure 4 It is a bottom view of an energy storage converter in an embodiment of the application.

[0031] 10, capacitor assembly; 20, inductor assembly;

[0032] 201, inductance base; 202, inductance body; 203, inductance coil; 204, inductance connector;

[0033] 30, board assembly; 310, inductance mounting plate; 320, capacitance mounting plate; 330, main board body;

[0034] 311, inductance mounting groove;

[0035] 50, heat dissipation assembly; 510, heat dissipation air duct; 520, drainage air duct;

[0036] 521, drainage channel;

[0037] 40, connection assembly; 60, mounting bracket; 70, drainage fan;

[0038] 601, bracket body; 602, mounting hole;

[0039] 80, main heat sink; 90, inverter inductance assembly; 100, busbar;

[0040] 200, current input assembly; 300, current output assembly. DETAILED DESCRIPTION

[0041] As can be known from the background art, in the design of the energy storage converter, the layout mode of the inductance and the capacitance is limited by the internal space. The traditional layout mode often cannot meet the following key requirements: in order to improve the filtering effect and electromagnetic compatibility (EMC), the number or size of the inductance needs to be increased. However, this will cause the inductance to occupy too much space, affecting the layout of other components, especially the installation position of the capacitance, thereby limiting the improvement of the system performance; the capacitance is used to stabilize the voltage and absorb energy in the energy storage converter, but its heat dissipation demand is often ignored. In the case of limited space, the layout of the capacitance is too close, which not only affects heat dissipation, but also may accelerate aging due to overheating, reducing its service life and performance; the traditional heat dissipation design mainly focuses on the cooling of the battery cluster and the power regulation hardware, and the specific heat dissipation demand of the inductance and the capacitance is not considered, resulting in poor temperature control of these components during high load operation, affecting the stability and safety of the energy storage converter.

[0042] Therefore, the purpose of the present application is to provide an energy storage converter and an energy storage system thereof to at least improve the low work efficiency of the inductance and the capacitance in the energy storage converter in the prior art.

[0043] As Figures 1 to 4As shown, the application provides an energy storage converter, comprising: a plate body assembly 30; a capacitor assembly 10 and an inductor assembly 20, the capacitor assembly 10 and the inductor assembly 20 are respectively arranged on both sides of the plate body assembly 30; a connecting assembly 40, both ends of the connecting assembly 40 are respectively electrically connected with the capacitor assembly 10 and the inductor assembly 20; and a heat dissipation assembly 50, the heat dissipation assembly 50 has a heat dissipation air duct 510, and at least part of the capacitor assembly 10 is located in the heat dissipation air duct 510.

[0044] By applying the technical scheme of the embodiment, the energy storage converter of the application comprises the plate body assembly 30, the capacitor assembly 10 and the inductor assembly 20, and the capacitor assembly 10 and the inductor assembly 20 are respectively arranged on both sides of the plate body assembly 30. By separating the layout of the capacitor assembly 10 and the inductor assembly 20, efficient use of the limited internal space is realized, and each component can be independently optimized according to its own needs. For example, the inductor assembly 20 can occupy a higher vertical space to adapt to its size, while the capacitor assembly 10 can use horizontal space or air duct space, avoiding performance degradation of the components due to space limitations. The connecting assembly 40 serves as a bridge between the capacitor assembly 10 and the inductor assembly 20, and its design ensures stable and efficient electrical connection between the two. By using high-quality connecting materials and structures, the contact resistance of the connecting points can be reduced, and power loss or system failure caused by poor connection can be avoided. The capacitor assembly 10 is placed in the heat dissipation air duct 510, which can effectively dissipate heat through natural air circulation or forced airflow generated by a fan. The inductor assembly 20 usually generates more heat, and by arranging it outside the air duct, a special heat dissipation path can be designed, such as adding heat sinks or setting up air guide grooves, to ensure that each component can operate at the best temperature, improving the overall thermal stability and reliability of the energy storage converter.

[0045] As shown in the Figure 2 The plate body assembly 30 comprises an inductor mounting plate 310 and a capacitor mounting plate 320 arranged at intervals along a first direction. The inductor assembly 20 is arranged on the inductor mounting plate 310, and the capacitor assembly 10 is arranged on the capacitor mounting plate 320. The connecting assembly 40 is arranged between the inductor mounting plate 310 and the capacitor mounting plate 320. The inductor assembly 20 and the capacitor assembly 10 are respectively fixed on the inductor mounting plate 310 and the capacitor mounting plate 320, ensuring accurate positioning and installation of each component, which is conducive to improving the standardization degree of the production process, reducing assembly errors, and improving the overall assembly quality. In addition, the separate layout of the inductor assembly 20 and the capacitor assembly 10 reduces electromagnetic interference between them, especially in the case of an increase in the number of inductors. This layout can better maintain the electromagnetic compatibility of the system, improve the electrical performance, and ensure the stability and efficiency of the energy storage converter during conversion.

[0046] Preferably, the first direction is perpendicular to the extension direction of the plate body assembly 30.

[0047] As shown in Figure 1 The plurality of inductance assemblies 20 are arranged along the length direction of the inductance mounting plate 310, and the inductance mounting plate 310 is provided with inductance mounting grooves 311 for mounting the inductance assemblies 20, and the inductance assemblies 20 are clamped with the inductance mounting grooves 311 to position the inductance assemblies 20.

[0048] The use of the plurality of inductance assemblies 20 in the present application can significantly enhance the filtering effect of the system energy storage converter, effectively reduce the harmonic interference in the power conversion process, provide a more pure and smooth alternating current output, improve the power quality and system stability, and the design of the inductance mounting grooves 311 realizes the accurate installation and positioning of the inductance assemblies 20, avoiding displacement or vibration during the assembly installation process, which helps to improve the electrical connection reliability and reduce the performance degradation caused by poor physical contact.

[0049] In an embodiment of the present application, each inductance assembly 20 includes an inductance base 201, an inductance body 202, and two inductance coils 203, the two inductance coils 203 are sleeved on the inductance body 202, the inductance body 202 is mounted on the inductance mounting plate 310 through the inductance base 201, the inductance base 201 and the inductance mounting plate 310 are connected through an inductance connecting piece 204, the inductance mounting plate 310 is provided with inductance mounting grooves 311 for mounting the inductance connecting piece 204, and the inductance connecting piece 204 is clamped with the inductance mounting grooves 311 after passing through the inductance mounting plate 310.

[0050] The present application uses two inductance coils 203 sleeved on the same inductance body 202, which can provide stronger filtering capability compared to a single coil, effectively reduce high-frequency noise in the energy storage converter and harmonic content in alternating current, ensure high quality and stability of the output power, and the double-coil design helps to improve the electromagnetic compatibility of the inductance assembly 20, balances the coil winding direction and layout, reduces electromagnetic interference, ensures stable operation of the inductance assembly in a complex electromagnetic environment, and reduces the adverse effects on other electronic components in the system.

[0051] Further, the inductance body 202 is mounted on the inductance mounting plate 310 through the inductance base 201, and the inductance base 201 and the inductance mounting plate 310 are fixed through the clamping mode of the inductance connecting piece 204 and the inductance mounting grooves 311, which not only stabilizes the installation of the inductance assembly 20, but also optimizes the layout and saves space, which is conducive to high-density integration.

[0052] In an embodiment of the present application, each inductance assembly 20 has two inductance connecting pieces 204, which are arranged along the width direction of the inductance mounting plate 310, so as to ensure the installation of the inductance assembly 20 to be more stable, effectively disperse the weight and vibration of the inductance assembly 20, improve the mechanical strength and stability of the entire energy storage converter, and reduce the risk of loosening or damage of the assembly caused by equipment vibration or external impact.

[0053] Preferably, the two inductance connecting pieces 204 are arranged at intervals, so as to provide a more optimized heat dissipation path for the inductance assembly 20. The contact area between the inductance main body 202 and the inductance mounting plate 310 is increased, which helps to improve the heat conduction efficiency, rapidly conducts the heat generated by the inductance to the inductance mounting plate 310, and then effectively reduces the inductance temperature through the cooperation of the inductance mounting plate 310 and the heat dissipation air duct 510, so as to avoid overheating and prolong the service life of the inductance assembly 20.

[0054] Preferably, the cross section of the inductance connecting piece 204 is rectangular, and the inductance mounting groove 311 is a rectangular groove matching the shape of the inductance connecting piece 204. Compared with a circular or other irregular shape, the rectangular cross section helps to prevent the inductance assembly 20 from rotating or moving after installation, ensures the position of the inductance assembly to be fixed, and thus improves the mechanical and electrical stability of the entire energy storage converter.

[0055] Further, the inductance connecting piece 204 with a rectangular cross section has a larger contact area, which can provide stronger support and tensile strength, and enhance the connection strength between the inductance assembly 20 and the inductance mounting plate 310, thereby reducing the risk of damage to the connecting piece under high-power operation or equipment vibration.

[0056] As shown in FIGS. 1, 2 and 3, the capacitor assembly 10 is arranged along the length direction of the capacitor mounting plate 320, and the capacitor assembly 10 is arranged in one-to-one correspondence with the inductance assembly 20. Figure 1 Figure 3 Preferably, the use of multiple capacitor assemblies 10 enhances the filtering effect, especially in one-to-one correspondence with multiple inductance assemblies 20, which can more finely filter out high-frequency and low-frequency noise in the energy storage converter source, and provide purer electric energy, which is crucial for improving the output power quality and system stability of the inverter. In addition, the one-to-one arrangement of the capacitor assembly 10 and the inductance assembly 20 can also minimize the signal transmission path between the capacitor and the inductance, thereby improving the response speed of the system to load changes and ensuring the stability of the output voltage under dynamic load conditions.

[0057]

[0058] ​​In one embodiment of the connection component 40 of this application, the connection component 40 is disposed opposite to each inductor component 20, which can significantly reduce the wiring length connecting the inductor component 20 to the rest of the circuit, thereby reducing parasitic inductance and resistance in the circuit. In high-power, high-frequency applications, this can reduce power loss and signal distortion, and improve the overall efficiency and stability of the system.

[0059] In a second embodiment of the connection component 40 of this application, the connection component 40 is disposed opposite to each capacitor component 10. The connection component disposed opposite to the capacitor component 10 can be more directly connected to the capacitor, optimize the circuit layout, and reduce energy loss during the charging and discharging process of the capacitor.

[0060] In a third embodiment of the connection component 40 of this application, the connection component 40 is positioned opposite to the gap between two adjacent inductor components 20. Placing the connection component in the gap between the two inductor components 20 maximizes space utilization, reduces the physical size of the system, and is suitable for high-density integrated designs. Furthermore, this layout reduces electromagnetic interference because the connection component 40 can act as an electromagnetic shield, reducing mutual influence between the inductor components 20 and improving the electromagnetic compatibility of the system.

[0061] In a fourth embodiment of the connection component 40 of this application, the gap between the connection component 40 and the two adjacent capacitor components 10 is arranged opposite to each other. This design can optimize the space utilization inside the energy storage converter, reduce physical interference between capacitor components 10, and provide better electrical isolation. The connection component 40 arranged in the gap can more effectively distribute the electrical load, ensure the balanced distribution of current, and reduce the risk of local overheating.

[0062] like Figure 3 As shown, the heat dissipation assembly 50 also includes a heat dissipation duct 520, which is disposed on the board assembly 30 and extends through the board assembly 30. The heat dissipation duct 520 is connected to the heat dissipation duct 510 so as to introduce the heat of the inductor assembly 20 into the heat dissipation duct 510 through the heat dissipation duct 520.

[0063] Specifically, the arrangement of the airflow duct 520 allows the heat generated by the inductor component 20 in this application to be directly and effectively guided to the heat dissipation duct 510, avoiding the accumulation of heat in local areas, improving heat transfer efficiency, and helping to keep the inductor component 20 within the safe operating temperature range under high load conditions, thereby improving the stability and reliability of the equipment.

[0064] Further, by providing the through-flowing air duct 520 on the plate body assembly 30, the path of the heat flow is optimized, the resistance of heat transfer from the inductor assembly 20 to the air duct 520 is reduced, the rapid dispersion of heat energy is ensured, the thermal stress inside the device is effectively reduced, the damage of overheating to sensitive components is prevented, and the design of the air duct 520 increases the flexibility of heat management. The air duct layout can be flexibly adjusted according to the different positions and heat generation of the inductor assembly 20, ensuring that each inductor assembly 20 can be fully cooled, and even in the case of complex structure or component layout change, good heat management effect can be maintained.

[0065] In an embodiment of the air duct 520 of the present application, the air duct 520 is multiple, and the multiple air ducts 520 are arranged around the inductor assembly 20, which can ensure that the heat generated by the inductor assembly 20 is evenly dispersed and effectively captured. No matter where the heat is generated, heat conduction can be carried out through the nearest air duct, so as to realize all-round efficient heat dissipation.

[0066] Compared with a single air duct, the multiple air ducts 520 arranged around can provide a wider heat dissipation area and more heat conduction paths, accelerate the transfer rate of heat from the inductor assembly 20 to the heat dissipation air duct 510, and significantly improve the heat dissipation speed. This is particularly important for maintaining the temperature stability of the device during high-power operation. Moreover, the design of multiple independent air ducts 520 makes the maintenance and cleaning of the air duct more convenient. Even if a certain air duct is blocked or damaged, it will not affect the function of the overall heat dissipation system, improving the maintenance efficiency and usability of the device.

[0067] In another embodiment of the air duct 520 of the application, the inductor assembly 20 is multiple, and the multiple inductor assemblies 20 are arranged at intervals along the length direction of the plate body assembly 30. The air inlet of the air duct 520 is arranged between the adjacent inductor assemblies 20. By arranging the air inlet between the adjacent inductor assemblies 20, it can be ensured that there is enough air flow entering the dense area of the inductor assembly 20, so as to be evenly distributed to the surface of each inductor assembly 20, avoiding local overheating and optimizing the distribution of heat flow.

[0068] Further, the multiple inductor assemblies 20 arranged at intervals match the air inlet of the air duct 520, ensuring that the air flow can directly blow the heat generating area of the inductor assembly 20, accelerating the transfer of heat energy and significantly improving the heat dissipation efficiency. It is helpful to keep the inductor assembly 20 at a lower temperature during high-current or high-frequency operation. Moreover, the inductor assemblies 20 arranged at intervals in the length direction of the plate body assembly 30 can reasonably plan the space inside the device, leaving enough gap for air flow and heat management, and creating conditions for the layout of other components, realizing the compact design and high power density of the device.

[0069] Specifically, the drainage air duct 520 of the present application comprises a plurality of drainage channels 521, which are in communication with the heat dissipation air duct 510, and the cross-sectional area of the longitudinal section of the drainage channel 521 gradually decreases in the outflow direction of the airflow. The design of gradually decreasing cross-sectional area follows the Bernoulli principle. As the airflow path through the drainage channel gradually narrows, the airflow velocity will increase, which can more effectively carry away the heat generated by the inductor assembly 20 and improve the heat dissipation efficiency.

[0070] The tapered design of the drainage channel 521 in the present application can optimize the heat energy transmission path, ensure that the carrying capacity of the airflow for heat energy is maximized during the transfer of heat from the inductor assembly 20 to the heat dissipation air duct 510, reduce the loss of heat energy, and improve the efficiency of the overall thermal management system.

[0071] Preferably, the heat dissipation assembly 50 further comprises a drainage channel 521, which comprises a first drainage section, a second drainage section and a third drainage section connected in sequence; and / or the plate body assembly 30 comprises a capacitor mounting plate 320, a main plate body 330 and an inductor mounting plate 310, the capacitor mounting plate 320 and the inductor mounting plate 310 are respectively arranged on the two side surfaces of the main plate body 330, the first drainage section is arranged on the capacitor mounting plate 320, the second drainage section is arranged on the main plate body 330, and the third drainage section is arranged on the inductor mounting plate 310.

[0072] The segmented design of the drainage channel 521 in the present application makes the airflow path more refined, which can customize the cooling according to the heat generation characteristics of the inductor assembly 20, ensures that each heat generation area can be effectively cooled in time, improves the accuracy of thermal management, and arranging the capacitor mounting plate 320 and the inductor mounting plate 310 on the two sides of the main plate body 330 can effectively enhance the thermal isolation between the capacitor and the inductor, avoid the heat generated by the inductor directly transferring to the capacitor, thereby reducing the risk of aging of the capacitor caused by overheating and improving the overall thermal stability of the system.

[0073] Preferably, the first drainage section is arranged on the capacitor mounting plate 320, which can accurately control the airflow around the capacitor assembly 10 and ensure that the heat dissipation demand of the capacitor is met; the third drainage section is arranged on the inductor mounting plate 310, which directly cools the inductor effectively, and the second drainage section as an intermediate connection optimizes the transmission path of the airflow in the main plate body 330, making the entire thermal management system more accurate and efficient.

[0074] As shown in Figure 4 The energy storage converter further comprises a mounting bracket 60 and a drainage fan 70, the mounting bracket 60 is mounted on the main plate body 330, and the drainage fan 70 is arranged on the mounting bracket 60 and opposite to the heat dissipation air duct 510, wherein the drainage fan 70 is a plurality of drainage fans 70, which are arranged in the length direction of the inductor mounting plate 310.

[0075] The mounting bracket 60 further comprises a bracket body 601 and a plurality of mounting holes 602, the plurality of mounting holes 602 are arranged along the length direction of the mounting bracket 60, and the plurality of mounting holes 602 and the plurality of drainage fans 70 are arranged one by one, by corresponding the drainage fan 70 and the mounting hole 602 one by one, it is ensured that the cooling air flow can directly and efficiently reach the heat dissipation demand point of each inductor assembly 20 and capacitor assembly 10, and the layout design of the plurality of mounting holes 602 allows the drainage fan 70 to be flexibly distributed on the bracket body 601, and the optimal positioning of the fan can be performed according to the heat distribution characteristics of the inductor assembly 20, which not only saves space, but also ensures the balance of heat dissipation.

[0076] In the present application, the plurality of drainage fans 70 are arranged along the length direction of the inductor mounting plate 310, which can ensure that the air flow in the heat dissipation air duct 510 is uniformly distributed, and the cooling effect of the inductor assembly 20 is enhanced, by precisely controlling the air volume of each fan, the heat dissipation problem of the inductor assembly 20 can be solved, the inductor temperature is effectively reduced, and the service life is prolonged, the position design of the mounting bracket 60 is adapted to the layout of the heat dissipation air duct 510, which can optimize the air flow path, ensure that the air flow can smoothly enter the heat dissipation air duct 510 and be discharged after passing through the inductor assembly 20, avoid air flow blockage or backflow, and improve the overall efficiency of the heat dissipation system.

[0077] In the present application, the drainage fan 70 is also arranged on one side of the capacitor assembly 10, which can ensure the rapid circulation of air around the capacitor assembly 10, effectively remove the heat generated by the capacitor assembly 10 during high-power operation, prevent the performance degradation or service life shortening of the capacitor due to overheating, and maintain the stable working state of the capacitor.

[0078] Specifically, the arrangement of the drainage fan 70 can also optimize the heat flow distribution inside the system, so that the heat dissipation requirements of the capacitor assembly 10 and the inductor assembly 20 are met, and the thermal interaction between the capacitor assembly 10 and the inductor assembly 20 is avoided, thereby improving the thermal management efficiency of the whole system.

[0079] As shown in Figure 4 The energy storage converter further comprises capacitor assemblies 10 and inductor assemblies 20 arranged along the length direction of the energy storage converter, a main heat sink 80, and an inverter inductor assembly 90, wherein the inverter inductor assembly 90 is installed on the bus bar 100.

[0080] The component layout with intervals in the application can improve the heat management effect, ensure that there is enough space between the components for heat dissipation, avoid heat accumulation, reduce the temperature rise of the components, and help improve the overall thermal stability of the system.

[0081] The application also provides an energy storage system, comprising an energy storage converter.

[0082] Due to the adoption of the inductor and capacitor stacking scheme and the heat dissipation design, the energy storage converter of the application can significantly enhance the filtering performance of the energy storage system, effectively suppress high-frequency noise, improve power quality, ensure the smoothness and purity of the output voltage, and provide more stable and pure power supply to the connected load devices. The optimized inductor and capacitor layout, as well as the specially designed heat dissipation duct 510 and the drainage fan 70, together improve the electromagnetic compatibility of the system, reduce internal and external electromagnetic interference, and ensure that the energy storage system can still operate stably in a complex electromagnetic environment, protecting the integrity of sensitive circuits and signals.

[0083] The inductance mounting plate 310 is also provided with a current input component 200 and a current output component 300, which are arranged at both ends of the inductance mounting plate 310 and extend away from the capacitor component 10 to conduct current to the inductance component 20. Arranging the current input component 200 and the current output component 300 at both ends of the inductance mounting plate 310 is conducive to smooth transition and uniform distribution of current. This layout reduces unnecessary detours of current on the board surface, reduces electromagnetic interference, and improves the efficiency of energy storage converter conversion and filtering. By arranging the current input component 200 and the current output component 300 away from the capacitor component 10, electromagnetic interference between the inductance component 20 and the capacitor component 10 can be effectively reduced.

[0084] Preferably, the two ends in the application are the two ends along the extension direction of the inductance mounting plate 310.

[0085] In the description of the embodiments of the application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0086] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments in accordance with the application.

[0087] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists, A and B exist, and B exists. In addition, the character“ / ” herein generally means that the front and rear associated objects are in an“or” relationship.

[0088] In the description of the embodiments of the application, the term“a plurality of” refers to two or more (including two), and similarly, “a plurality of groups” refers to two or more groups (including two groups), and “a plurality of pieces” refers to two or more pieces (including two pieces).

[0089] In the description of the embodiments of the application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0090] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0091] In the drawings corresponding to the embodiments of the present application, the thickness and area of a layer are exaggerated for clarity and ease of description. When it is described that a component (such as a layer, a film, a region, or a substrate) is "on" or "under" another component, it can be "directly" on or under the other component, or a third component can be interposed therebetween. In contrast, when it is described that a component is "on" the surface of another component, or a component surface forms or is provided with another component, it means that there is no third component therebetween. In addition, when it is described that a component is "formed substantially on" another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor on a partial edge of the entire surface.

[0092] In the description of the embodiments of the present application, when a component "includes" another component, unless otherwise specified, other components are not excluded, and other components can be further included. In addition, when a layer, a film, a region, or a plate, etc. component is referred to as "on / under" another component, it can be "directly on" another component (i.e. between the surface of another component and another component, there is no other component), or another component can exist therebetween. In addition, when a layer, a film, a region, a plate, etc. component is "directly on" another component, or when a layer, a film, a region, a plate, etc. component is on the surface of another component, it means that there is no other component therebetween.

[0093] The terms used in the description of various described embodiments herein are only used to describe specific embodiments, and are not intended to be limiting. As used in the description of various described embodiments and the appended claims, "the part" is also intended to include the plural, unless the context clearly indicates otherwise. Among them, the components include layers, films, regions, or plates, etc.

[0094] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art can understand that in the embodiments of the present application, many technical details are presented in order to enable the reader to better understand the present application. However, the technical solutions claimed by the present application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0095] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for implementing the present application, and in actual applications, various changes and modifications can be made in form and details without departing from the spirit and scope of the present application. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, therefore the protection scope of the present application should be limited by the scope defined in the claims.

Claims

1. An energy storage system, characterized in that, Includes an energy storage converter, the energy storage converter comprising: The board assembly (30) includes an inductor mounting plate (310) and a capacitor mounting plate (320) spaced apart along a first direction. The inductor mounting plate (310) is provided with a current input component (200) and a current output component (300). The current input component (200) and the current output component (300) are respectively disposed at both ends of the inductor mounting plate (310).

2. The energy storage system according to claim 1, characterized in that, The energy storage converter also includes: A capacitor assembly (10) and an inductor assembly (20) are respectively disposed on both sides of the plate assembly (30); A connecting component (40) is provided, the two ends of which are electrically connected to the capacitor component (10) and the inductor component (20), respectively. A heat dissipation assembly (50) having a heat dissipation duct (510) wherein at least a portion of the capacitor assembly (10) is located within the heat dissipation duct (510).

3. The energy storage system according to claim 2, characterized in that, The inductor assembly (20) is disposed on the inductor mounting plate (310), the capacitor assembly (10) is disposed on the capacitor mounting plate (320), and the connecting assembly (40) is disposed between the inductor mounting plate (310) and the capacitor mounting plate (320).

4. The energy storage system according to claim 2, characterized in that, There are multiple inductor components (20), and the multiple inductor components (20) are spaced apart along the length direction of the inductor mounting plate (310). The inductor mounting plate (310) is provided with inductor mounting slots (311) for mounting the inductor components (20). The inductor components (20) are engaged with the inductor mounting slots (311) to position the inductor components (20).

5. The energy storage system according to claim 2, characterized in that, There are multiple capacitor components (10), and the multiple capacitor components (10) are spaced apart along the length direction of the capacitor mounting plate (320). The multiple capacitor components (10) are arranged in a one-to-one correspondence with the multiple inductor components (20).

6. The energy storage system according to claim 2, characterized in that, The connection component (40) is disposed opposite to each of the inductor components (20); and / or The connecting component (40) is disposed opposite to each of the capacitor components (10); and / or The gap between the connecting component (40) and the two adjacent inductor components (20) is arranged opposite to each other; and / or The gap between the connecting component (40) and the two adjacent capacitor components (10) is set opposite to each other.

7. The energy storage system according to claim 2, characterized in that, The heat dissipation assembly (50) also includes a cooling duct (520), which is disposed on the board assembly (30) and extends through the board assembly (30). The cooling duct (520) is connected to the heat dissipation duct (510) so as to introduce the heat of the inductor assembly (20) into the heat dissipation duct (510) through the cooling duct (520).

8. The energy storage system according to claim 7, characterized in that, There are multiple air ducts (520), and the multiple air ducts (520) are arranged around the inductor assembly (20).

9. The energy storage system according to claim 7, characterized in that, There are multiple inductor components (20), and the multiple inductor components (20) are spaced apart along the length direction of the plate assembly (30). The airflow inlet of the air duct (520) is located between two adjacent inductor components (20).

10. The energy storage system according to claim 9, characterized in that, The airflow duct (520) includes multiple airflow channels (521), which are connected to the heat dissipation duct (510). Along the outflow direction of the airflow, the cross-sectional area of ​​the longitudinal section of the airflow channel (521) gradually decreases.

11. The energy storage system according to claim 2, characterized in that, The heat dissipation assembly (50) further includes a drainage channel (521), the drainage channel (521) comprising a first drainage section, a second drainage section, and a third drainage section connected in sequence; and / or, The board assembly (30) includes the capacitor mounting plate (320), the main board (330) and the inductor mounting plate (310). The capacitor mounting plate (320) and the inductor mounting plate (310) are respectively disposed on the two sides of the main board (330). The first current-guiding section is disposed on the capacitor mounting plate (320), the second current-guiding section is disposed on the main board (330), and the third current-guiding section is disposed on the inductor mounting plate (310).

12. The energy storage system according to claim 11, characterized in that, The energy storage converter also includes a mounting bracket (60) and a cooling fan (70). The mounting bracket (60) is mounted on the main board body (330), and the cooling fan (70) is disposed on the mounting bracket (60) and is disposed opposite to the heat dissipation duct (510). There are multiple cooling fans (70), and the multiple cooling fans (70) are spaced apart along the length direction of the inductor mounting plate (310).

13. The energy storage system according to claim 2, characterized in that, The energy storage converter also includes the capacitor assembly (10) and the inductor assembly (20), the main heat sink (80), and the inverter inductor assembly (90) arranged at intervals along the length of the energy storage converter, wherein the inverter inductor assembly (90) is mounted on the busbar (100).

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