Energy storage power source

Abstract

To have an excellent heat dissipation effect, reduce a weight, and save an internal space and a manufacturing cost of a device.SOLUTION: An energy storage power supply includes: a housing (12); a battery unit (14); a second support body (46); and an inverter (16). A housing cavity (18) is provided in the housing (12), and a first support body (20) is provided in the housing cavity (18). A first accommodation cavity (28) is provided in the first support body (20), and a first through hole (34) is provided in a bottom portion of the first accommodation cavity (28). The unit cell (14) is located in the accommodation cavity (18), and the unit cell (14) is installed in the first support body (20). Each unit cell (14) has a main body (30), and one end of the main body (30) fits into the first accommodation cavity (28). A second support body (46) is fixedly connected to the housing (12), and the second support body (46) is installed on one side of the unit cell (14) away from the first support body (20). The battery unit (14) is sandwiched between the first support body (20) and the second support body (46), and an inverter (16) is located in the accommodation cavity (18) and electrically connected to the battery unit (14).SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to patents filed in China on August 5, 2024 (application numbers 202411066920.3, 202421879282.2) and patents filed in China on November 14, 2024 (application numbers 202411066920.3, 202421879282.2, 202411633032.5, and 202422796238.1), the disclosures of which are incorporated herein by reference in their entireties.

[0002] This application relates to the field of energy storage technology, and more particularly to energy storage power sources. [Background technology]

[0003] With the improvement of living standards, users' demands for higher protection grade and higher power output of portable power supplies are increasing.

[0004] Currently, as the protection level of portable energy storage power supplies has been improved, the volume required for heat dissipation of the energy storage power supplies has increased, which has resulted in ineffective cooling and reduced heat dissipation capacity. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above, the present application aims to solve at least one of the problems in the related art to some extent, thereby proposing an energy storage power source. [Means for solving the problem]

[0006] The energy storage power supply according to the present application comprises a housing, battery modules, an inverter, and a fan, the housing having a mounting cavity and a heat dissipation structure formed therein, the battery modules mounted in the mounting cavity, the inverter mounted in the mounting cavity and thermally coupled to the heat dissipation structure and electrically connected to the battery modules, the fan mounted outside the housing, and the air flow generated by the fan blows through the heat dissipation structure.

[0007] In some embodiments, the heat dissipation structure includes a plurality of heat dissipation fins, which are located on the bottom, sides, and / or top of the housing.

[0008] In some embodiments, the plurality of heat dissipation fins are arranged radially and define an installation space in the middle, and the fan is installed in the installation space.

[0009] In some embodiments, the arrangement density of the heat dissipation fins gradually changes from dense to sparse from the center to the periphery, and the arrangement height of the heat dissipation fins gradually changes from low to high from the center to the periphery.

[0010] In some embodiments, the blower is a centrifugal blower or an axial blower.

[0011] In some embodiments, the heat dissipation structure further includes a protrusion, the protrusion being positioned within the mounting cavity and secured to the housing, and the protrusion being thermally coupled to a power element of the inverter.

[0012] In some embodiments, a thermally conductive layer is disposed between the protrusion and the power element, and the protrusion is thermally coupled to the power element of the inverter through the thermally conductive layer.

[0013] In some embodiments, the thermally conductive layer is less than 1 mm thick and has a thermal conductivity greater than 3 W / M / K.

[0014] In some embodiments, the energy storage power source further comprises a support pad, the support pad being located on the bottom of the housing and adapted to contact an external support surface, thereby separating the bottom of the housing from the external support surface.

[0015] In some embodiments, the energy storage power source further comprises a first cover plate, the first cover plate being fixedly attached to the exterior of the housing and covering the blower, with ventilation holes formed in the first cover plate.

[0016] In some embodiments, the first cover plate covers the heat dissipation structure, the first cover plate has a first bottom plate and a first side plate arranged around the first bottom plate, an air passage is formed between the heat dissipation structure and the first cover plate, the ventilation holes have a first ventilation hole and a second ventilation hole, the ventilation hole is arranged between the first ventilation hole and the second ventilation hole, the first ventilation hole is arranged on the first bottom plate, and the second ventilation hole is arranged on the first side plate.

[0017] In some embodiments, the energy storage power source further includes a support pad, the support pad being located on one side of the first cover plate facing away from the blower, the support pad being adapted to contact an external support surface, thereby separating the bottom of the first cover plate from the external support surface.

[0018] In some embodiments, the energy storage power source further includes a support pad, and a through hole corresponding to the support pad is provided on the bottom plate of the cover plate, and the support pad is fixedly mounted on the bottom of the cover plate together with the housing through the through hole, and the support pad is used to contact an external support surface, thereby separating the bottom of the cover plate from the external support surface.

[0019] In some embodiments, the housing has a first housing and a second housing, the first housing and the second housing are fitted together to form the mounting cavity, the inverter is fixed to the first housing, a heat dissipation structure is installed in the first housing, and the battery module is fixed to the second housing.

[0020] In some embodiments, the first housing is an aluminum alloy housing, the inside of the first housing is thermally coupled to the inverter, and the outside of the first housing forms the heat dissipation structure.

[0021] In some embodiments, the first housing is anodized.

[0022] In some embodiments, the first housing has a cavity, and the inverter is fixedly mounted in the cavity.

[0023] In some implementations, the second enclosure is provided with a panel, and the panel is provided with a power outlet.

[0024] In some embodiments, the first housing and the second housing are fitted together vertically, with the first housing being located below the second housing.

[0025] In some embodiments, a temperature sensor is attached to the heat dissipation structure to detect the temperature of the heat dissipation structure, and the energy storage power source controls the start / stop or rotation speed of the fan based on the temperature of the heat dissipation structure.

[0026] In some embodiments, the energy storage power source further includes a semiconductor cooling element, the semiconductor cooling element having a hot end and a cold end, the cold end thermally coupled to the inverter, and the hot end thermally coupled to the heat dissipation structure.

[0027] In some embodiments, one side of the heat dissipation structure facing the inverter has a mounting groove, and the semiconductor cooling element is mounted in the mounting groove.

[0028] In some embodiments, the outer wall of the mounting cavity has a heat dissipation opening, and the heat dissipation structure is attached to the heat dissipation opening.

[0029] In some embodiments, the heat dissipation structure has a mounting portion and a fixing protrusion surrounding the mounting portion, the mounting portion extends into the heat dissipation opening, the semiconductor cooling element is attached to the mounting portion, and the fixing protrusion is fixed to the outer wall of the mounting cavity via a connecting member, thereby closing the heat dissipation opening via the heat dissipation structure.

[0030] In some embodiments, the energy storage power supply further includes a heat dissipation support, the inverter includes a circuit board, the power elements are mounted on the circuit board, the heat dissipation support is attached to the housing, the heat dissipation support fixes the circuit board and thermally couples it to the power elements, and the heat dissipation support is further thermally coupled to the heat dissipation structure.

[0031] In some embodiments, the heat dissipation support includes a base and a second cover plate, the base includes a second bottom plate and two second side plates, the two second side plates are respectively connected to both ends of the second bottom plate, a thermal conduction pad is provided between the second bottom plate and the power element, the second cover plate is connected to the two second side plates, and a position limiting member is provided on the second cover plate to limit the battery module.

[0032] In some embodiments, the energy storage power source further comprises a thermal conduit, the thermal conduit thermally coupled to the heat dissipation structure. [Effects of the Invention]

[0033] In the energy storage power supply of the present invention, a heat dissipation structure is formed in the mounting cavity of the housing, and the inverter is thermally coupled to the heat dissipation structure. In addition, a fan is mounted on the outside of the housing, so that the air flow generated by the fan blows through the heat dissipation structure. This method provides better heat dissipation efficiency from the inverter and reduces the weight of the inverter compared to natural heat dissipation methods. The introduction of the fan improves heat dissipation efficiency, and the housing performs heat dissipation and support functions, saving internal space and manufacturing costs for the energy storage power supply.

[0034] Additional aspects and advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application. [Brief explanation of the drawings]

[0035] The above and / or additional aspects and advantages of the present invention will become more apparent and understandable from the following description of the embodiments in conjunction with the drawings. [Figure 1] FIG. 1 is a schematic diagram of an energy storage power source according to some embodiments of the present application. [Figure 2] FIG. 2 is an exploded view of an energy storage power source according to some embodiments of the present application. [Figure 3] FIG. 3 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. [Figure 4] FIG. 4 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. [Figure 5] FIG. 5 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. [Figure 6] FIG. 6 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. [Figure 7] FIG. 7 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. [Figure 8] FIG. 8 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. [Figure 9] FIG. 9 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. [Figure 10] FIG. 10 is a partial schematic diagram of an energy storage power supply according to some embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0036] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, where the same or similar reference numerals always refer to the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are only used to interpret the present application, and should not be construed as limitations on the present application.

[0037] Terms such as "first" and "second" are used for descriptive purposes only and should not be understood to express or imply relative importance or the number of technical features. Thus, technical features qualified by "first" and "second" may express or imply the inclusion of one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0038] In this application, unless otherwise specified or limited, the terms "attach," "connect," "couple," and the like should be interpreted broadly, for example, to mean fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or to refer to an internal communication between two elements or a mutual relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in the present invention depending on the specific situation.

[0039] The present disclosure provides many different embodiments or examples for realizing different structures of the present disclosure. To simplify the disclosure of the present disclosure, the following describes configurations and installations in specific examples. Of course, these are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and / or letters in different examples, and these reference numerals and / or letters are for the purposes of simplicity and clarity and do not themselves imply a relationship between the various embodiments and / or installations discussed.

[0040] The embodiments of the present application will be described in detail below, and examples of the embodiments will be illustrated, in which the same or similar symbols throughout represent the same or similar components or parts with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are used only to interpret the present application, and should not be understood as limiting the present application.

[0041] As shown in Figures 1-4, this application discloses an energy storage power supply 100. The energy storage power supply 100 includes a housing 10, a battery module 20, an inverter 30, and a fan 40. The housing 10 has a mounting cavity 11, and a heat dissipation structure 12 is formed in the housing 10. The battery module 20 is mounted in the mounting cavity 11. The inverter 30 is mounted in the mounting cavity 11 and is thermally coupled to the heat dissipation structure 12 and electrically connected to the battery module 20. The fan 40 is mounted on the outside of the housing 10, and the air flow generated by the fan 40 blows through the heat dissipation structure 12.

[0042] It can be understood that the battery module 20 has a large heat capacity and generates relatively little heat, so it can be cooled by natural heat dissipation, but the inverter 30 generates a large amount of heat, so it needs to be cooled by the heat dissipation structure 12 formed on the housing 10 in combination with the fan 40. The heat generated during the operation of the inverter 30 is conducted to the heat dissipation structure 12, and then dissipated to the outside through the fan 40, thereby lowering the temperature of the inverter 30 and ensuring the cooling effect of the energy storage power source.

[0043] In other words, the energy storage power supply 100 of the present application uses the housing 10 as a support and a heat sink, eliminating the need to install an additional heat sink, reducing the overall height and volume of the energy storage power supply 100 and achieving high protection for the inverter 30.

[0044] The housing 10 of the present application may be made of a metallic material, and the energy storage power source 100 made in this manner will be more sturdy and long-lasting.

[0045] The thermal coupling between the inverter 30 and the heat dissipation structure 12 allows the inverter 30 to be connected to the heat dissipation structure 12 via direct heat conduction or via an intermediary connecting member via indirect heat conduction.

[0046] The electrical connection between the inverter 30 and the battery modules 20 may be direct or indirect. For example, the battery modules 20 may be indirectly electrically connected to the inverter 30 via a battery protection plate. The battery protection plate can provide protection against overvoltage, overtemperature, overcurrent, etc., and can disconnect the electrical connection between the battery and the outside.

[0047] As described above, by forming the heat dissipation structure 12 in the housing 10 of the energy storage power supply 100 of the present invention, the inverter 30 is thermally coupled to the heat dissipation structure 12, the fan 40 is attached to the outside of the housing 10, and the air flow generated by the fan 40 blows through the heat dissipation structure 12, the present invention achieves a superior heat dissipation effect for the inverter 30 compared to natural heat dissipation methods, and also reduces the weight of the inverter 30. The introduction of the fan 40 improves heat dissipation efficiency, and in addition, the housing 10 fulfills the heat dissipation and support functions, thereby saving the internal space and manufacturing costs of the energy storage power supply 100.

[0048] As shown in FIG. 4, in some embodiments, the heat dissipation structure 12 includes a plurality of heat dissipation fins 121, which are disposed on the bottom 101, the side 102 and / or the top 103 of the housing 10.

[0049] Specifically, the plurality of heat dissipation fins 121 may be installed on the bottom 101, side surfaces 102, and / or top surface 103 of the housing 10 in the following ways: First, the plurality of heat dissipation fins 121 may be installed on one of the bottom 101, side surfaces 102, and top surface 103 of the housing 10; Second, the plurality of heat dissipation fins 121 may be installed on two of the bottom 101, side surfaces 102, and top surface 103 of the housing 10; Third, the plurality of heat dissipation fins 121 may be installed on all of the bottom 101, side surfaces 102, and top surface 103 of the housing 10.

[0050] 4, when a plurality of heat dissipating fins 121 are installed on the bottom 101 of the housing 10 of the energy storage power supply 100, this makes the overall appearance of the energy storage power supply 100 more aesthetically pleasing. In addition, because a plurality of heat dissipating fins 121 are installed on the bottom 101 of the housing 10 of the energy storage power supply 100, it is difficult for a user to touch the heat dissipating fins 121 and cause hand burns when lifting the energy storage power supply 100.

[0051] In addition, the installation of the plurality of heat dissipation fins 121 on the bottom 101 of the housing 10 of the energy storage power supply 100 also serves to prevent rainwater from entering the mounting cavity 11, providing a better waterproof effect. This prevents the circuit board 31 in the inverter 30 from shorting out and breaking down when moisture in the air enters the mounting cavity 11 in rainy or humid weather when the energy storage power supply 100 is used in an outdoor environment.

[0052] When multiple heat dissipation fins 121 are installed on the side 102 or top 103 of the housing 10 of the energy storage power supply 100, the electronic components in the mounting cavity 11 can dissipate heat from the side 102 and top 103 of the housing 10, making the heat dissipation methods and heat dissipation paths more diverse.

[0053] In some embodiments, a plurality of heat dissipation fins 121 are arranged radially, and an installation space 1201 is formed in the middle thereof, and the fan 40 is installed in the installation space 1201 .

[0054] 4, a first fastening member 41 may be installed on the fan 40, and a second fastening member 1211 that fits the first fastening member 41 may be installed on the heat dissipation fin 121, and the first fastening member 41 may be fastened to the second fastening member 1211 to attach the fan 40 to the center of the heat dissipation fin 121. There is no limitation on whether the first fastening member 41 may be a fastening post and the second fastening member 1211 a fastening hole, or whether the first fastening member 41 is a fastening hole and the second fastening member 1211 a fastening post.

[0055] The fan 40 is mounted on the outside of the housing 10, and the air flow generated by the fan 40 blows through the heat dissipation structure 12 to form a heat dissipation path, thereby achieving a heat dissipation effect for the inverter 30 in the mounting cavity 11. In other words, one end of the multiple heat dissipation fins 121 is surrounded to form the mounting space 1201, so that the fan 40 is mounted in the mounting space 1201, and while the fan 40 rotates, the heat dissipation airflow contacts the heat dissipation fins 121 from all sides, which helps to enhance the heat dissipation effect of the heat dissipation fins 121.

[0056] Regardless of whether multiple heat dissipation fins 121 are installed on the bottom 101, sides 102, or top 103 of the housing 10, the fan 40 may be installed at the center of the outside of the housing 10, and the heat dissipation fins 121 may be arranged at intervals around the fan 40, thereby forming a shorter and more direct heat dissipation path, creating a larger heat dissipation area, and achieving a better heat dissipation effect.

[0057] As shown in FIG. 5, in some implementations, the arrangement density of the heat dissipation fins 121 gradually changes from dense to sparse from the center to the outer periphery, and the arrangement height of the heat dissipation fins 121 gradually changes from low to high from the center to the outer periphery.

[0058] Specifically, when viewed from the central inner region of the heat dissipation fins 121, the heat dissipation fins 121 are designed to be densely packed because this region is close to the heat source and has a large heat output. By arranging the heat dissipation fins 121 densely in this manner, the heat dissipation area within a limited space is increased, thereby enabling more efficient heat absorption and transfer. Although the heat dissipation fins 121 are arranged quite densely, the relatively low height of the heat dissipation fins 121 ensures that the heat dissipation fins 121 can be reasonably arranged within a limited space, preventing the heat dissipation fins 121 from being too tall and occupying excessive space, thereby affecting the installation and placement of other components. On the other hand, the relatively low height of the heat dissipation fins 121 helps to conduct heat to the outside more quickly, preventing heat from accumulating in the central inner region of the heat dissipation fins 121 and promoting heat diffusion to the outside periphery of the housing 10, resulting in a more excellent heat dissipation effect.

[0059] The height of the heat dissipating fins 121 is higher in the outer area of ​​the heat dissipating fins 121 relative to the central inner area. This is because the outer space of the heat dissipating fins 121 is relatively wider, allowing the higher heat dissipating fins 121 to better exchange heat with the surrounding air and improve heat dissipation efficiency. In addition, the outer heat dissipating fins 121 are relatively sparse, which reduces the overall weight of the heat sink while still ensuring heat dissipation effectiveness. Spacing the heat dissipating fins 121 not only reduces material usage and costs, but also makes the heat sink lighter, making it easier to install and carry.

[0060] The angle range in which the inner and outer heat dissipation fins 121 gradually change from dense to sparse is (10°, 15°).

[0061] The energy storage power supply 100 of the present application effectively achieves a uniform heat distribution effect by adopting a gradual design in which the heat dissipation fins 121 are densely packed and low on the inside and high and sparsely packed on the outside. After heat is generated from a heat source such as the inverter 30, it is first quickly absorbed and conducted by the densely packed heat dissipation fins 121 located in the central interior area of ​​the housing 10, and then gradually dissipated to the outside. The high and sparsely packed heat dissipation fins 121 in the outer area allow for better heat exchange with the air, thereby dissipating heat evenly to the surrounding environment and avoiding local overheating.

[0062] In addition, the gradual change design of the heat dissipation fins 121, in which the inside is dense and low and the outside is high and sparse, not only ensures heat dissipation performance but also achieves the goal of weight reduction, which is useful for the lightweight design of the entire inverter of a portable power supply with high protection.

[0063] In some implementations, the blower 40 is a centrifugal blower or an axial blower.

[0064] Specifically, when an axial fan operates, the blades blow air in the same direction as the axis, in other words, the blowing direction is parallel to the blowing direction. Axial fans can usually provide a large air volume, which helps quickly remove heat from the energy storage power supply 100 and achieve effective heat dissipation. Axial fans have a fairly simple structure and low manufacturing costs, making them cost-effective to use. Axial fans are applicable to heat dissipation in most energy storage power supplies, and are particularly suitable for situations that require a large air volume to quickly dissipate heat.

[0065] When a centrifugal fan operates, its blades blow air perpendicular to its axis (i.e., radially). In other words, the inflow direction is perpendicular to the outflow direction. Centrifugal fans can generate high wind pressure, which is useful for dissipating heat from inside energy storage power supplies, particularly in situations where the heat dissipation path is long or the heat dissipation resistance is large. By changing the flow direction of the cavity, centrifugal fans can discharge air in an axial direction perpendicular to the axis, which is very useful for specific heat dissipation designs. Under the same size and other comparable performance conditions, centrifugal fans typically produce less noise than axial fans, which helps improve the overall user experience of energy storage power supplies. Centrifugal fans are suitable for situations where the airflow needs to be rotated 90 degrees for discharge or where high wind pressure is required for heat dissipation.

[0066] When the blower 40 is a centrifugal blower, the blowing direction of the centrifugal blower is perpendicular to the blowing direction, allowing the centrifugal blower to achieve effective airflow in a smaller space. This means that the design of the energy storage power supply 100 allows for more flexibility in the position and direction of the centrifugal blower to accommodate the internal spatial layout of the energy storage power supply 100. Therefore, by optimizing the arrangement and direction of the blower, it is possible to more effectively utilize the limited space within the energy storage power supply. For example, by attaching the centrifugal blower to the side or top of the power supply, excessive space at the front, rear, or bottom of the energy storage power supply 100 is not occupied. This arrangement not only reduces the overall volume of the energy storage power supply 100, but also helps to lower the height of the energy storage power supply 100, making the structure of the energy storage power supply 100 more compact and easier to carry.

[0067] In other words, the feature of the centrifugal blower that the blowing direction is perpendicular to the blowing direction allows for more flexible use of space in the design of the energy storage power supply 100, thereby making it possible to effectively reduce the overall volume and height of the energy storage power supply 100. This design not only improves the compactness and portability of the structure of the energy storage power supply 100, but also helps to improve the heat dissipation efficiency of the energy storage power supply 100 and extend its service life.

[0068] In addition, the blower 40 achieves an IP68 protection rating by using a resin injection process to vacuum coat the printed circuit board assembly inside the blower 40, giving the blower 40 extremely high dustproof and waterproof performance, making it suitable for various harsh working environments and ensuring normal heat dissipation and operation of the energy storage power supply 100.

[0069] As shown in FIG. 5 , in some embodiments, the heat dissipation structure 12 further includes a protrusion 122, which is positioned within the mounting cavity 11 and fixed to the housing 10, and which is thermally coupled to the power elements of the inverter 30.

[0070] It can be understood that when two solid surfaces come into contact, factors such as surface roughness and gaps create an impediment to heat conduction between the two solids, and this impediment is called thermal contact resistance.

[0071] The contact area between the protrusions 122 and the power elements 311 of the inverter 30 is relatively large, and the design of the protrusions 122 may help reduce gaps and air, thereby reducing the thermal contact resistance between the inverter 30 and the housing 10. This means that the obstruction to heat conduction between the inverter 30 and the housing 10 is reduced, thereby improving the heat dissipation efficiency of the power elements 311 of the inverter 30.

[0072] In detail, referring to FIG. 3, the power elements 311 of the inverter 30 include elements such as a transformer 3111 and an inductor 3112, and the power elements 311 such as the transformer 3111 and the inductor 3112 are mounted as close as possible to the protrusion 122 on the housing 10, thereby using the protrusion 122 to minimize the contact thermal resistance between the inverter 30 and the housing 10.

[0073] Therefore, in the present application, the protrusion 122 installed at the bottom of the mounting cavity 11 can be thermally coupled to the power element 311 of the inverter 30, thereby reducing the contact thermal resistance between the inverter 30 and the housing 10 and improving the heat dissipation efficiency of the power element 311 of the inverter 30.

[0074] As shown in FIG. 6, in some embodiments, a thermally conductive layer 123 is disposed between the protrusion 122 and the power element 311, and the protrusion 122 is thermally coupled to the power element 311 of the inverter 30 through the thermally conductive layer 123.

[0075] Specifically, the thermally conductive layer 123 can be a thermally conductive layer strip, a thermally conductive paste, or a thermally conductive structure made of other highly thermally conductive materials, but is not limited thereto.

[0076] In this way, the energy storage power supply 100 of the present application provides a thermally conductive layer between the protrusion 122 inside the housing 10 and the power element 311, and the thermally conductive layer is made of a flexible material, so that the power element 311 of the inverter 30 is in close contact with the protrusion 122, accelerating thermal conduction between the inverter 30 and the protrusion 122, thereby promoting the conduction and dissipation of heat from the inverter 30 onto the housing 10.

[0077] In some implementations, the thermally conductive layer 123 is less than 1 mm and the thermal conductivity of the thermally conductive layer 123 is greater than 3 W / M / K.

[0078] It can be understood that the thermal conduction layer 123 is too thick, which may reduce the thermal conduction efficiency between the inverter 30 and the protrusion 122 .

[0079] Therefore, by setting the thickness of the thermally conductive layer 123 of the present invention to less than 1 mm and setting the thermal conductivity of the thermally conductive layer 123 to 3 W / M / K or more, the thermal conduction efficiency between the inverter 30 and the protrusion 122 is ensured, thereby ensuring that the heat from the power elements such as the circuit board of the inverter 30 is quickly conducted to the housing 10.

[0080] In other words, in the present application, the protrusion 122 is installed on the inside of the housing 10 within the mounting cavity 11, which makes it possible to reduce the thickness of the thermally conductive layer 123, thereby optimizing the thermal conduction efficiency between the inverter 30 and the housing 10.

[0081] As shown in FIG. 1, in some embodiments, the energy storage power supply 100 further includes a support pad 50, which is located on the bottom 101 of the housing 10 and is used to contact an external support surface, thereby separating the bottom 101 of the housing 10 from the external support surface.

[0082] Specifically, when a support pad 50 is installed on the bottom 101 of the housing 10, on the one hand, the heat dissipation structure 12 is not visible from the outside of the energy storage power supply 100, making the appearance more elegant, and on the other hand, the driving airflow between the fan 40 and the heat dissipation structure 12 can circulate within a relatively sufficient space, thereby ensuring the heat dissipation efficiency of the heat dissipation structure 12 on the housing 10.

[0083] In addition, the energy storage power supply 100 according to the present invention is supported by the support pad 50, making it difficult for people to come into contact with the fan 40, thereby improving the safety of using the energy storage power supply 100.

[0084] It is optional to install four support pads 50. The four support pads 50 are located at the four corners of the housing 10, respectively, to ensure that the energy storage power source 100 is stably supported on an external support surface. Of course, in other embodiments of the present application, the number of support pads 50 can be adjusted according to actual needs and is not limited to four.

[0085] As shown in FIG. 2, in some embodiments, the energy storage power supply 100 further includes a first cover plate 60, which is fixedly attached to the outside of the housing 10 and covers the blower 40, with ventilation holes 61 formed in the first cover plate 60.

[0086] In other words, the installation position of the first cover plate 60 corresponds to the installation position of the blower 40. When the blower 40 is attached to the bottom 101 of the housing 10, the first cover plate 60 is also attached to the bottom 101 of the housing 10. When the blower 40 is attached to the side 102 of the housing 10, the first cover plate 60 is also attached to the side 102 of the housing 10. When the blower 40 is attached to the top 103 of the housing 10, the first cover plate 60 is also attached to the top 103 of the housing 10.

[0087] In the present application, the first cover plate 60 is fixed to the outside of the housing 10 and covers the fan 40 and the heat dissipation fins 121, thereby preventing the fan 40 and the heat dissipation fins 121 from being exposed, protecting the fan 40 and preventing a user from being burned by touching the heat dissipation fins 121 when lifting the energy storage power supply 100. In addition, the first cover plate 60 also has a certain aesthetic effect. The first cover plate 60 can be fixed and attached to the outside of the housing 10 using screws or other members, and no limitation is imposed herein.

[0088] In the present application, ventilation holes 61 are provided on the first cover plate 60, and under the action of the fan 40, heat generated in the inverter 30 can be dissipated to the outside through the ventilation holes 61 on the first cover plate 60, thereby conducting the heat from the inverter 30 to the housing 10 and achieving heat dissipation.

[0089] In some embodiments, the first cover plate 60 has a first bottom plate 62 and a first side plate 63 arranged around the first bottom plate 62, forming an air passage between the heat dissipation structure 12 and the first cover plate 60, the ventilation hole 61 has a first ventilation hole 611 and a second ventilation hole 612, the ventilation hole 61 is arranged between the first ventilation hole 611 and the second ventilation hole 612, the first ventilation hole 611 is arranged on the first bottom plate 62, and the second ventilation hole 612 is arranged on the first side plate 63.

[0090] Specifically, the first cover plate 60 is provided with both a first ventilation hole 611 and a second ventilation hole 612. In other words, when two ventilation holes are installed on the first cover plate 60, an independent air passage can be formed between the first cover plate 60 and the housing 10, and heat can be dissipated more quickly in the energy storage power source 100 of the present application.

[0091] 4, a plurality of first ventilation holes 611 are provided, and the plurality of first ventilation holes 611 are arranged in a matrix. A plurality of second ventilation holes 612 can also be provided, and the plurality of second ventilation holes 612 can also be arranged in a matrix. It can be understood that the greater the number of first ventilation holes 611 and second ventilation holes 612 and the larger the hole diameter, the better the ventilation effect and ultimately the better the heat dissipation effect.

[0092] In this way, the energy storage power supply 100 of the present application makes it possible to form an independent air passage between the first cover plate 60 and the housing 10 through the first ventilation hole 611 and the second ventilation hole 612 on the first cover plate 60, thereby improving the heat dissipation effect of the heat dissipation structure 12 of the housing 10.

[0093] In some embodiments, the first vent 611 is an inlet and the second vent 612 is an outlet, or the second vent 612 is an inlet and the first vent 611 is an outlet.

[0094] In other words, in the present application, the first ventilation hole 611 functions as an inlet or an outlet, and when functioning as an inlet, it blows cold external air into the power supply, or when functioning as an outlet, it blows hot internal air, and the second ventilation hole 612 also functions as an inlet or an outlet, and when functioning as an inlet, it blows cold external air into the power supply, or when functioning as an outlet, it blows hot internal air. This depends on the heat dissipation needs of the energy storage power supply 100 and the airflow path within the energy storage power supply 100.

[0095] In the present application, by controlling the direction of the blower 40, it is possible to select whether the two ventilation holes are to be used as an inlet or an outlet.

[0096] Furthermore, it is possible to provide a grille in the first ventilation hole 611 or the second ventilation hole 612, which can on the one hand serve to dissipate heat from the energy storage power source 100 and on the other hand serve to prevent foreign objects from entering the first cover plate 60 of the energy storage power source 100.

[0097] In some embodiments, the energy storage power supply 100 further includes a support pad, which is installed on one side of the first cover plate 60 facing away from the blower 40, and which is used to contact an external support surface, thereby separating the bottom of the first cover plate 60 from the external support surface.

[0098] In other words, in the present application, it is possible to directly install a support pad on the bottom of the first cover plate 60, which, on the one hand, makes the heat dissipation structure 12 invisible from the outside of the energy storage power supply 100, resulting in a more elegant appearance, and, on the other hand, allows the driving airflow between the fan 40 and the heat dissipation structure 12 to circulate within a relatively spacious space, thereby ensuring the heat dissipation efficiency of the heat dissipation structure 12 on the housing 10.

[0099] Preferably, four support pads 50 are provided, and the four support pads 50 are respectively disposed at the four corners of the first cover plate 60, thereby ensuring the stability of the external support surface of the energy storage power supply 100. Of course, in other embodiments of the present application, the number of support pads 50 can also be adjusted according to actual needs and is not limited to four.

[0100] As shown in FIGS. 2 and 4 , in some embodiments, the energy storage power supply 100 further includes a support pad 50, and a through-hole 64 corresponding to the support pad 50 is provided in the first bottom plate 62 of the first cover plate 60. The support pad 50 is fixedly mounted on the bottom of the first cover plate 60 together with the housing 10 through the through-hole 64, and the support pad 50 is used to contact an external support surface, thereby separating the bottom of the first cover plate 60 from the external support surface.

[0101] For example, as shown in FIG. 4, when heat dissipation fins 121 are installed at the bottom of the housing 10, first connecting posts 1212 can be installed on the heat dissipation fins 121, and first connecting holes corresponding to the first connecting posts 1212 can be installed on the support pad 50. By fitting the support pad 50 to the first connecting posts 1212 through the first connecting holes, the support pad 50 can be fixed to the bottom of the housing 10, and the pressure applied to the support pad 50 can be directly transmitted to the housing 10 and not borne by the first cover plate 60, thereby effectively preventing damage to the first cover plate 60.

[0102] As another example, when heat dissipation fins 121 are installed at the bottom of the housing 10, second connection holes can be installed in the heat dissipation fins 121, and second connection posts 52 corresponding to the second connection holes can be installed in the support pad 50. By aligning the support pad 50 with the second connection holes via the second connection posts 52, the support pad 50 can be fixed to the bottom of the housing 10. This allows the pressure applied to the support pad 50 to be transmitted directly to the housing 10, rather than being borne by the first cover plate 60, thereby effectively preventing damage to the first cover plate 60.

[0103] As another example, a first fastening post corresponding to the through-hole 64 can be installed on the support pad 50, and a second fastening post with a fastening hole corresponding to the first fastening post can be installed on the housing 10. In this way, when the first fastening post passes through the through-hole 64 and engages with the second fastening post, the support pad 50 penetrates the first cover plate 60 and the housing 10 and is stably attached thereto. This allows pressure applied to the support pad 50 to be directly transmitted to the housing 10, rather than being borne by the first cover plate 60, which more effectively prevents damage to the first cover plate 60.

[0104] It can also be understood that by directly installing the support pad on the bottom of the first cover plate 60, on the one hand, the heat dissipation structure 12 cannot be seen from the outside of the energy storage power supply 100, making the appearance more attractive, and on the other hand, the driving airflow between the fan 40 and the heat dissipation structure 12 can circulate within a relatively spacious space, thereby ensuring the heat dissipation efficiency of the heat dissipation structure 12 on the housing 10.

[0105] Preferably, four support pads 50 are provided, and the four support pads 50 are respectively disposed at the four corners of the first cover plate 60, thereby ensuring the stability of the external support surface of the energy storage power supply 100. Of course, in other embodiments of the present application, the number of support pads 50 can also be adjusted according to actual needs and is not limited to four.

[0106] As shown in FIG. 2 , in some embodiments, the housing 10 has a first housing 13 and a second housing 14, the first housing 13 and the second housing 14 are fitted together to form an installation cavity 11, the inverter 30 is fixed to the first housing 13, the heat dissipation structure 12 is installed in the first housing 13, and the battery module 20 is fixed to the second housing 14.

[0107] Specifically, the first housing 13 is the lower housing, and the second housing 14 is the upper housing. A first fastening member 131 can be installed on the first housing 13, and a second fastening member 141 that fastens to the first fastening member 131 can be installed on the second housing 14. The first fastening member 131 is a hollow first fastening post as shown in FIG. 3, and the second fastening member 141 is a solid second fastening post that corresponds to the first fastening post as shown in FIG. 2.

[0108] In the present invention, both the first housing 13 and the second housing 14 can be formed by die casting, which makes the structure simple and convenient to manufacture.

[0109] In the present application, the design of the housing 10 includes a joint structure formed by joining the first housing 13 with the second housing 14, which facilitates assembly of the energy storage power supply 100.

[0110] It can be understood that whether the corresponding heat dissipation structure 12 on the housing 10 is a joint structure or not, the housing 10 can be designed as a joint structure, and no limitation is imposed here.

[0111] As shown in FIG. 4, in some embodiments, the first housing 13 is an aluminum alloy housing, the inside of the first housing 13 is thermally coupled to the inverter 30, and the outside of the first housing 13 forms a heat dissipation structure 12.

[0112] It can be understood that the first housing 13 is made of an aluminum alloy, and since aluminum alloys have good thermal conductivity, the heat dissipation performance of the first housing 13 made of aluminum alloy material is also excellent, and when the heat dissipation structure 12 is formed on the outside of the first housing 13, the heat dissipation structure 12 is also made of an aluminum alloy, so the heat dissipation performance of the heat dissipation structure 12 of the present application is also good.

[0113] In addition, since aluminum alloy has low density and is stronger than existing metal materials such as steel and copper, the first housing 13 made of aluminum alloy has excellent strength and is not easily broken.

[0114] In some embodiments, the first housing 13 is subjected to an anodization process.

[0115] Specifically, when the first housing 13 is subjected to anodizing treatment, the corrosion resistance of the first housing 13 is improved and the surface thermal emissivity is increased, thereby improving the heat radiation capability of the first housing 13.

[0116] As shown in FIGS. 3 and 5, in some embodiments, the first housing 13 has a receiving cavity 132 in which the inverter 30 is fixedly installed.

[0117] Specifically, the inverter 30 may be fixedly mounted in the receiving cavity 132 using screws or bolts, or may be fixedly mounted in the receiving cavity 132 in other ways, but no limitation is imposed here.

[0118] In this way, in the present application, the inverter 30 can be fixedly mounted within the accommodating cavity 132, thereby dissipating heat through the heat dissipation structure 12 formed on the outside of the first housing 13, thereby achieving a good heat dissipation effect.

[0119] As shown in FIGS. 1 and 2, in some embodiments, a panel 142 is installed on the second housing 14, and a power outlet 1421 is provided on the panel 142.

[0120] In other words, the energy storage power supply 100 according to the present application can output power to the outside via the power output port 1421 provided on the panel 142 of the second housing 14.

[0121] In some embodiments, the first housing 13 and the second housing 14 are fitted together vertically, with the first housing 13 being placed below the second housing 14.

[0122] In other words, the present invention allows the housing 10 to be constructed from two half housings that fit together vertically, which simplifies the structure and makes mass production of the housing 10 convenient.

[0123] In addition, since the heat dissipation structure 12 is installed on the outside of the first housing 13 and the first housing 13 is installed below the second housing 14, in the energy storage power supply 100 of the present application, the heat dissipation structure 12 is correspondingly arranged below the housing 10, which makes it difficult to accidentally come into contact with the heat dissipation structure 12, thereby protecting the heat dissipation structure 12 from damage.

[0124] In some embodiments, a temperature sensor is attached to the heat dissipation structure 12 to detect the temperature of the heat dissipation structure 12, and the energy storage power source 100 controls the start / stop or rotation speed of the fan 40 based on the temperature of the heat dissipation structure 12.

[0125] In other words, in the energy storage power supply 100 of the present application, by further installing a temperature sensor in the housing 10, when the temperature sensor detects that the temperature of the heat dissipation structure 12 is above the first threshold, the energy storage power supply 100 can automatically control the startup of the fan 40, which prevents the temperature of the heat dissipation structure 12 from becoming too high and is convenient for the energy storage power supply 100 to quickly perform heat dissipation processing.

[0126] When the temperature sensor detects that the temperature of the heat dissipation structure 12 is below the second threshold, the energy storage power source 100 can automatically control the stopping of the fan 40, which is convenient for improving the heat dissipation efficiency of the fan 40 and saving energy consumption.

[0127] For example, the first threshold value may be 38°, 39°, 40°, 43°, 45°, 48°, 50°, 51°, 55°, or 60°. No limitations are imposed thereon here.

[0128] For example, the second threshold value may be 28°, 29°, 29.5°, 30°, 31°, 34°, 35°, 36°, 37°, or 38°. No limitations are imposed here.

[0129] In this way, in the present application, by installing a temperature sensor in the heat dissipation structure 12 to quickly sense the temperature of the heat dissipation structure 12, the energy storage power source 100 can quickly control the start of the fan 40 to start heat dissipation, and quickly control the stop of the fan 40 to stop heat dissipation.

[0130] As shown in FIG. 7 , in some embodiments, the energy storage power supply 100 further includes a semiconductor cooling element 124, which has a hot end and a cold end, the cold end being thermally coupled to the inverter 30, and the hot end being thermally coupled to the heat dissipation structure 12.

[0131] It can be seen that the heat dissipation structure 12 can include a semiconductor cooling element 124. Semiconductor cooling technology is essentially a highly efficient cooling and heat pump technology, using semiconductor materials as refrigerants to generate cooling through the action of electric current. This technology has advantages such as energy saving, low environmental impact, compact size, and excellent cooling performance, and is widely used in various fields. The principle of semiconductor cooling technology is to achieve cooling through the conduction of electric current and the thermoelectric effect of semiconductor materials. When electric current flows through a semiconductor material, one side of the semiconductor material becomes hot and the other side becomes cold. This is because the carriers in the semiconductor material induce energy transfer under the action of a thermoelectric field. By utilizing this effect, heat can be transferred from the cold side to the hot side, thereby achieving the cooling effect.

[0132] In this embodiment, the cold end of the semiconductor cooling element 124 is thermally connected to the inverter 30, and the hot end is thermally connected to the heat dissipation structure 12. The heat dissipation structure 12 and the fan 40 are used to transfer air from the hot end of the semiconductor cooling element 124 to the outside, thereby cooling the cold end and lowering the temperature of the inverter 30, thereby ensuring the cooling effect of the energy storage power source 100.

[0133] In addition, the semiconductor cooling element 124 can precisely control the temperature, and the temperature of the housing 10 can be adjusted by adjusting the power consumption parameters of the semiconductor cooling element 124 according to the user's needs, thereby achieving intelligent adjustment of the temperature of the housing 10 and improving the user experience.

[0134] 7, the heat dissipation structure 12 also includes a heat insulating member 125 surrounding the semiconductor cooling element 124. It can be understood that since the semiconductor cooling element 124 cools at one end and heats at the other end during operation, it is necessary to use the heat insulating member 125 to protect the performance of the semiconductor cooling element 124 from external influences, and the heat insulating member 125 should be made of an insulating material with low thermal conductivity and excellent compressibility, such as pearl cotton or foam cotton. Of course, in other embodiments of the present application, the material of the heat insulating member 125 can be adjusted according to actual needs and is not limited to the above.

[0135] Preferably, the thickness of the insulating material 125 depends on the compressibility of the insulating material and is generally 1.5-2 times the thickness of the semiconductor cooling element 124. The insulating material 125 is filled between the inverter 30 and the heat dissipation structure 12, and when a pressing force is applied from below to above the heat dissipation structure 12, the insulating material 125 is compressed and filled to ensure good heat retention performance.

[0136] As shown in FIG. 8, in some embodiments, the side of the heat dissipation structure 12 facing the inverter 30 has a mounting groove 126 in which the semiconductor cooling element 124 is mounted.

[0137] It can be understood that the heat dissipation structure 12 functions as a support for the semiconductor cooling element 124 and the fan 40, which allows the heat dissipation structure 12, the semiconductor cooling element 124, and the fan 40 to integrally perform the role of heat dissipation, facilitating assembly. Mounting the semiconductor cooling element 124 in the mounting groove 126 increases the contact area between the hot end of the semiconductor cooling element 124 and the heat dissipation structure 12, thereby improving the heat dissipation effect of the heat dissipation structure on the hot end of the semiconductor cooling element 124.

[0138] Preferably, the size of the mounting groove 126 is slightly larger than the size of the semiconductor cooling element 124, and the depth of the mounting groove 126 is set to 0.1 mm to 0.2 mm to position the semiconductor cooling element 124. Thermal resistance is eliminated by applying a thermally conductive material to the contact position between the mounting groove 126 and the semiconductor cooling element 124. The thermally conductive material is usually a fluid thermally conductive material such as silicone grease.

[0139] As shown in FIG. 4, in some embodiments, the outer wall of the mounting cavity 11 has a heat dissipation opening 15, and the heat dissipation structure 12 is attached to the heat dissipation opening 15.

[0140] Specifically, the heat dissipation structure 12 can be fixedly attached to the heat dissipation opening 15 using screws or bolts.

[0141] In this way, in the present application, the heat dissipation structure 12 can be attached to the heat dissipation opening 15 on the outer wall of the mounting cavity 11, which makes it convenient to dissipate heat to the inverter 30 through the heat dissipation opening 15.

[0142] As shown in Figures 4 and 8, in some embodiments, the heat dissipation structure 12 has a mounting portion 127 and a fixing flange 128 surrounding the mounting portion 127, the mounting portion 127 extends into the heat dissipation opening 15, the semiconductor cooling element 124 is attached to the mounting portion 127, and the fixing flange 128 is fixed to the outer wall of the mounting cavity 11 via a connecting member, thereby closing the heat dissipation opening 15 via the heat dissipation structure 12.

[0143] It can be understood that when the heat dissipation structure 12 is fastened to the outer wall of the mounting cavity using connecting members as an independent assembly, on the one hand, the heat dissipation structure 12 is not visible from the outside of the energy storage power supply 100, resulting in a more attractive appearance, and on the other hand, it is possible to bring the cold end of the semiconductor cooling element 124 into close contact with the inverter 30, thereby improving the cooling effect of the inverter 30.

[0144] 9, a sealing member 129 is preferably fitted to the mounting portion 127. The outer wall of the sealing member 129 abuts against the inner wall of the heat dissipation port 15 of the housing 10. This improves the sealing performance between the heat dissipation structure 12 and the housing 10, prevents external dirt or liquid from entering the energy storage power supply 100, and reduces the failure rate of the energy storage power supply 100.

[0145] Preferably, the heat dissipation structure 12 is made as a one-piece die-cast part, so that the heat dissipation fins 121, the mounting portion 127, and the fixing protrusions 128 can all be molded in one operation, which simplifies the manufacture of the heat dissipation structure 12 and reduces the weight of the heat dissipation structure 12, thereby favoring the lightweight design of the energy storage power supply 100.

[0146] As shown in FIG. 9 , in some implementations, the energy storage power supply 100 further includes a heat dissipation support 32, the inverter 30 includes a circuit board 31, the circuit board 31 is provided with a power element 311, the heat dissipation support 32 is attached to the housing 10, the heat dissipation support 32 fixes the circuit board 31 and is thermally coupled to the power element 311, and the heat dissipation support 32 is further thermally coupled to the heat dissipation structure 12.

[0147] It can be seen that fixing the circuit board 31 to the heat dissipation support 32 can serve to protect the power components 311. The heat dissipation support 32 is thermally connected to the circuit board 31, and the heat dissipation support 32 is thermally connected to the heat dissipation structure 12. During operation, heat generated by the power components 311 on the circuit board 31 can be conducted from the circuit board 31 to the heat dissipation support 32, and then dissipated to the outside through the heat dissipation structure 12 and the fan 40, thereby improving the cooling effect for the inverter 30 and ensuring the heat dissipation effect of the energy storage power supply 100.

[0148] Preferably, the heat dissipation support 32 is provided with heat dissipation fins 32121. The heat dissipation fins 32121 provided on the heat dissipation support 32 can perform the role of heat dissipation, and the combination of the heat dissipation fins 32121 with the heat dissipation structure 12 can ensure a cooling effect for the inverter 30 and ensure excellent heat dissipation function for the energy storage power supply 100. In the embodiment of the present application, the number and area of ​​the heat dissipation fins 32121 can be selected according to actual needs, thereby ensuring a cooling effect while occupying a relatively small area, which is advantageous for designing the energy storage power supply 100 with a lighter weight.

[0149] As shown in FIG. 10 , in some implementations, the heat dissipation support 32 has a base 321 and a second cover plate 322, the base 321 has a second bottom plate 3211 and two second side plates 3212, the two second side plates 3212 are connected to both ends of the second bottom plate 3211 respectively, a thermal conduction pad 312 is provided between the second bottom plate 3211 and the power element 311, the second cover plate 322 is connected to the two second side plates 3212, and a position limiting member 3221 for limiting the battery module 322 is installed on the second cover plate 322.

[0150] 9, the base 321 is a U-shaped plate, and a heat conduction pad 312 is installed between the second bottom plate 3211 and the circuit board 31. The heat dissipation fins 32121 are installed on the second side plate 3212, so that the heat generated during the operation of the power elements 311 on the circuit board 31 can be quickly conducted to the heat dissipation support 32 via the heat conduction pad 312, and then quickly dissipated through the heat dissipation fins 32121, thereby ensuring the heat dissipation effect of the circuit board 31.

[0151] The second cover plate 322 is provided with a position limiting member 3221 for restricting the battery module 20. The position limiting member 3221 can prevent the inverter 30 from swinging relative to the battery module 20, and can also provide a position for mounting the inverter 30, which not only facilitates assembly but also improves the reliability of the energy storage power supply.

[0152] Preferably, as shown in FIG. 10 , the second bottom plate 3211 is provided with a receiving groove 32111 for receiving the semiconductor cooling element 124. The size of the receiving groove 32111 is slightly larger than the size of the semiconductor cooling element 124, and the depth of the receiving groove 32111 is set to 0.1 mm-0.2 mm to position the semiconductor cooling element 124. Furthermore, a thermally conductive material is applied to the contact point between the receiving groove 32111 and the semiconductor cooling element 124 to eliminate thermal resistance. The thermally conductive material is typically a fluid thermally conductive material such as silicone grease. This not only improves the positioning function for the semiconductor cooling element 124, but also enhances the heat dissipation effect of the semiconductor cooling element 124 on the heat dissipation support rack 32.

[0153] 10 , the inverter 30 preferably further includes an insulating plate 33. The insulating plate 33 is sandwiched between the second base plate 3211 and the circuit board 31, and the insulating plate 33 has clearance holes 351 corresponding to the thermal conduction pads 312. It can be seen that the additional insulating plate 33 ensures insulation between the circuit board 31 and the second base plate 3211, prevents short circuits caused by charging the heat dissipation support 32, and improves the operating reliability of the energy storage power supply. The clearance holes 351 in the insulating plate 33 allow the thermal conduction pads 312 to directly abut on the second base plate 3211, ensuring that the heat on the circuit board 31 is quickly conducted to the heat dissipation support 32, thereby improving the heat dissipation efficiency of the inverter 30.

[0154] In some embodiments, the energy storage power supply 100 further comprises a heat pipe, the heat pipe being thermally coupled to the heat dissipation structure 12 .

[0155] Specifically, the heat pipe is typically a sealed copper pipe with a phase-change medium inside, which has excellent thermal conductivity. In this application, the heat pipe is installed in the receiving cavity 132 and is closely attached to the heat dissipation structure 12. Heat is mainly generated from the inverter 30. Since different power elements 311 of the inverter 30 generate heat at different amounts, different areas of the heat dissipation structure 12 may have different temperatures, and some areas may be extremely hot.

[0156] Therefore, in the present application, the heat pipe can be used to transfer heat from the high temperature area to the low temperature area, thereby realizing uniform heat dissipation in the heat dissipation structure 12, and achieving better heat dissipation and a better heat dissipation effect.

[0157] As shown in FIG. 2, in some embodiments, the battery module 20 can be disposed above the inverter 30, and a protective plate 21 can be installed on one side of the battery module 20 facing the inverter 30, and the protective plate 21 is used to protect the battery module 20.

[0158] Specifically, the protective plate 21 prevents the inverter 30 or other external objects from directly contacting the battery module 20, thereby avoiding physical damage that may be caused by friction, impact, or pressure, which is very important for maintaining the structural integrity of the battery module 20 and extending its service life.

[0159] Furthermore, in some cases, the inverter 30 may generate electromagnetic interference or electrical noise. The protective plate 21 acts as an electrical shield, reducing the impact of such interference on the battery module 20 and ensuring that the battery module 20 can operate stably and safely.

[0160] In addition, the battery modules 20 generate heat during operation, and the inverter 30 may also be a heat source. The protective plate 21 can provide some thermal insulation effect, reducing the heat exchange between the battery modules 20 and the inverter 30, and helping the battery modules maintain an appropriate operating temperature range.

[0161] If the inverter 30 experiences a fault or abnormality, such as a short circuit or overheating, the protective plate 21 acts as an additional safety barrier to prevent these faults from directly damaging the battery module 20. This can also reduce safety risks such as fire and explosion to some extent.

[0162] The above examples only represent some embodiments of the present application and are described in detail, but they should not be understood as limiting the claims of the present application. It should be noted that those skilled in the art can make some modifications and improvements without departing from the concept of the present application, and these are included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be determined based on the claims. [Explanation of symbols]

[0163] 100 - energy storage power source, 10 - housing, 101 - bottom, 102 - side, 103 - top, 11 - mounting cavity, 12 - heat dissipation structure, 121 - heat dissipation fin, 1211 - second fastening member, 1212 - first connecting post, 1201 - mounting space, 122 - protrusion, 123 - thermally conductive layer, 124 - semiconductor cooling element, 125 - heat insulating member, 126 - mounting groove, 127 - mounting portion, 128 - fixing protrusion, 129 - sealing member, 13 - first housing, 131 - first fastening member, 132 - receiving cavity, 14 - second housing, 141 - second fastening member, 20 - battery module, 21 - holding member Protective plate, 30 - inverter, 31 - circuit board, 311 - power element, 312 - thermal conduction pad, 3111 - transformer, 3112 - inductor, 32 - heat dissipation support, 321 - base, 3211 - second bottom plate, 32111 - accommodating groove, 3212 - second side plate, 32121 - heat dissipation fin, 322 - second cover plate, 3221 - position limiting member, 33 - insulating plate, 40 - blower, 41 - first fastening member, 50 - support pad, 60 - first cover plate, 61 - ventilation hole, 611 - first ventilation hole, 612 - second ventilation hole, 62 - first bottom plate, 63 - first side plate, 64 - through hole.

Claims

1. The battery pack includes a housing, a battery module, an inverter, and a fan. The housing has a mounting cavity, and a heat dissipation structure is formed on the housing; the battery module is mounted within the mounting cavity; the inverter is mounted in the mounting cavity and thermally coupled to the heat dissipation structure and electrically connected to the battery module; the blower is attached to the outside of the housing, and the blower generates flowing air that passes through the heat dissipation structure; The heat dissipation structure has a plurality of heat dissipation fins, and the plurality of heat dissipation fins are installed on the bottom, side and / or top of the housing; The plurality of heat dissipation fins are arranged radially and define an installation space in the middle thereof, and the fan is installed in the installation space; the heat dissipation structure further has a protrusion, the protrusion is located in the mounting cavity and fixed to the housing, and the protrusion is thermally coupled to a power element of the inverter; 1. An energy storage power source comprising:

2. The arrangement density of the heat dissipation fins is configured to gradually change from dense to sparse from the center to the outer periphery, and the arrangement height of the heat dissipation fins is configured to gradually change from low to high from the center to the outer periphery.

2. The energy storage power supply of claim 1.

3. 2. The energy storage power supply according to claim 1, wherein the fan is a centrifugal fan or an axial fan.

4. A thermally conductive layer is provided between the protrusion and the power element, and the protrusion is thermally coupled to the power element of the inverter via the thermally conductive layer.

2. The energy storage power supply of claim 1.

5. Further comprising a support pad; The support pad is located on the bottom of the housing, and the support pad is used to contact an external support surface, thereby separating the bottom of the housing from the external support surface.

2. The energy storage power supply of claim 1.

6. Further provided with a first cover plate, the first cover plate is fixedly attached to the outside of the housing and covers the fan, the first cover plate is provided with ventilation holes, the first cover plate covers the heat dissipation structure, the first cover plate has a first bottom plate and a first side plate arranged around the first bottom plate, an air passage is formed between the heat dissipation structure and the first cover plate, the ventilation holes have first ventilation holes and second ventilation holes, the air passage is arranged between the first ventilation holes and the second ventilation holes, the first ventilation holes are arranged on the first bottom plate, and the second ventilation holes are arranged on the first side plate; 2. The energy storage power supply of claim 1.

7. Further comprising a support pad; The support pad is installed on one side of the first cover plate facing away from the blower, and is used to contact an external support surface. A through hole corresponding to the support pad is provided on the bottom plate of the first cover plate, and the support pad is fixedly installed on the bottom of the first cover plate together with the housing through the through hole, and is used to contact the external support surface, thereby separating the bottom of the first cover plate from the external support surface.

7. The energy storage power supply of claim 6.

8. the housing has a first housing and a second housing, the first housing and the second housing are fitted together to form the mounting cavity, the inverter is fixed to the first housing, a heat dissipation structure is installed on the first housing, and the battery module is fixed to the second housing; the first housing is an aluminum alloy housing, the inside of the first housing is thermally coupled to the inverter, and the heat dissipation structure is formed on the outside of the first housing; The first housing and the second housing are fitted together vertically, and the first housing is installed below the second housing.

2. The energy storage power supply of claim 1.

9. a temperature sensor attached to the heat dissipation structure to detect the temperature of the heat dissipation structure; controlling the start / stop or rotation speed of the fan based on the temperature of the heat dissipation structure; 2. The energy storage power supply of claim 1.

10. Further comprising a semiconductor cooling element, the semiconductor cooling element has a hot end and a cold end, the cold end is thermally coupled to the inverter, and the hot end is thermally coupled to the heat dissipation structure; 2. The energy storage power supply of claim 1.

11. The energy storage power supply according to any one of claims 1 to 10, further comprising a heat pipe, the heat pipe being thermally coupled to the heat dissipation structure.

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