A portable home energy storage device system assembly

Abstract

The utility model belongs to the technical field of energy storage device, propose a kind of portable household energy storage device system assembly, box, battery pack and electrical component are installed in box inner chamber, the socket of electrical connection of the side wall of box is respectively inlaid installation and electrical component, box side wall is equipped with air inlet and air outlet, and air inlet, air outlet are oppositely arranged, air inlet, air outlet are kept with electrical component Same height, and the side of electrical component is equipped with the radiating fan that air connection is formed with air outlet.The utility model's portable household energy storage device system assembly, realize the compact arrangement of battery pack and electrical component in box, and through the setting that air inlet, air outlet are kept with electrical component Same height, realize the concentrated heat dissipation to electrical component, and the setting of one-side radiating fan is used in the present application, reduce overall noise and cost.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage device technology, and specifically relates to a portable home energy storage device system assembly. Background Technology

[0002] Against the backdrop of global energy structure transformation and consumption upgrading, the portable energy storage industry is booming, attracting a flood of competitors. From the popularization of outdoor activities to the surge in household emergency needs, portable energy storage is gradually penetrating multiple application scenarios, thereby catalyzing continuous technological progress and the gradual maturation of the market.

[0003] Currently, during the operation of portable energy storage devices, components such as inverters and BMS inside the device generate concentrated heat due to energy conversion losses. Traditional heat dissipation solutions typically employ multi-fan designs to enhance heat dissipation capacity, or assign one fan to each heat-generating component. However, this approach has significant drawbacks in practical applications: multiple fans operating in parallel can easily lead to mutual airflow interference, creating turbulence and recirculation zones inside the enclosure. This not only reduces heat dissipation efficiency but also generates excessive noise due to airflow disturbance. Furthermore, multi-fan systems require complex control circuits and additional airflow guiding structures, which not only increases material costs but also leads to a larger device size. This contradicts the design requirements of miniaturization and lightweighting of portable energy storage devices.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] To address the aforementioned issues, this utility model proposes a portable household energy storage device system assembly, comprising: a housing, a battery pack and electrical components installed in the inner cavity of the housing, sockets for electrical connection with the electrical components being embedded in the side walls of the housing, an air inlet and an air outlet being provided on the side walls of the housing, the air inlet and air outlet being arranged opposite each other, the air inlet and air outlet being at the same height as the electrical components, and a cooling fan being provided on one side of the electrical components to connect with the air outlet.

[0006] Furthermore, both the air inlet and outlet include several through holes that connect to the internal cavity of the housing, with the gap between the through holes being less than or equal to 2mm.

[0007] Furthermore, the battery pack includes a module tray, battery cells, module fixing slots, and a plurality of battery cells arranged in an array. The upper and lower ends of the plurality of battery cells are respectively connected to the module tray and the module fixing slots, and bottom foam is provided between the battery cells and the module tray.

[0008] Furthermore, a predetermined gap is maintained between the battery cells and adjacent battery cells.

[0009] Furthermore, the electrical components include a power board mounted on the upper surface of the module fixing slot, on which inverter photovoltaic modules and several electronic components are mounted, and a cooling fan is mounted at one end of the power board, with the cooling fan located between the air outlet and the inverter photovoltaic modules.

[0010] Furthermore, the electrical components also include a ventilation hood, with both ends of the ventilation hood connected to the power board. A ventilation channel is formed between the ventilation hood and the power board to house the inverter and photovoltaic heat sink. The two ends of the ventilation channel are respectively connected to a cooling fan and an air inlet.

[0011] Furthermore, the ends of the inverter photovoltaic modules facing the cooling fan and air inlet are equipped with heat dissipation fins.

[0012] Furthermore, the area of ​​the air inlet is smaller than the area of ​​the air outlet.

[0013] Furthermore, a touch panel that is electrically connected to the electrical components is embedded in the side wall of the enclosure. The touch panel and the socket are arranged opposite each other. A through groove is opened on the side of the upper side wall of the enclosure near the touch panel to form a carrying handle. A wireless fast charging plate that is electrically connected to the electrical components is embedded in the side of the upper side wall of the enclosure near the socket.

[0014] Furthermore, the enclosure includes an upper enclosure and a lower enclosure, which are detachably connected by bolts, and the cross-section of the enclosure adopts a rectangular structure.

[0015] Compared with the prior art, the embodiments of this utility model have at least the following advantages:

[0016] The portable home energy storage device system assembly of this utility model achieves a compact arrangement of the battery pack and electrical components within the casing. By setting the air inlet and the air outlet to be at the same height as the electrical components, centralized heat dissipation of the electrical components is achieved, thereby ensuring that the electronic devices operate within a reasonable temperature range. Furthermore, this application adopts a single-sided cooling fan setting, which reduces overall noise and manufacturing costs, and avoids the formation of backflow zones inside the casing, ensuring a stable heat dissipation effect.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a portable home energy storage device system assembly according to an embodiment of the present invention is shown. Figure 1 ;

[0020] Figure 2 A schematic diagram of a portable home energy storage device system assembly according to an embodiment of the present invention is shown. Figure 2 ;

[0021] Figure 3 A schematic diagram of the battery pack, cooling fan, and electrical components in an embodiment of the present invention is shown;

[0022] Figure 4 An exploded view of the portable home energy storage device system assembly in an embodiment of this utility model is shown.

[0023] Figure 5 A schematic diagram of the electrical components in an embodiment of this utility model is shown.

[0024] In the diagram, the components are: 1. Box body; 2. Battery pack; 3. Module tray; 4. Battery cell; 5. Module fixing slot; 6. Bottom foam; 7. Electrical components; 8. Power board; 9. Inverter photovoltaic module; 10. Electronic components; 11. Ventilation cover; 12. Heat sink fins; 13. Socket; 14. Touch panel; 15. Air inlet; 16. Air outlet; 17. Cooling fan; 18. Handle; 19. Wireless fast charging board. Detailed Implementation

[0025] The following description provides many different embodiments or examples for implementing various features of the present invention. The elements and arrangements described in the specific examples below are only for concise expression of the present invention and are merely examples, not intended to limit the present invention.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This utility model provides a portable home energy storage device system assembly. Figure 1 A schematic diagram of a portable home energy storage device system assembly according to an embodiment of the present invention is shown. Figure 1 ,refer to Figure 1 and Figure 2 The portable home energy storage device system assembly includes: a housing 1, the side walls of which are divided according to the orientation of up, down, left, right, front and back, and the housing 1 includes a front side wall, a rear side wall, a left side wall, a right side wall, an upper side wall and a lower side wall.

[0028] Correspondingly, refer to Figure 3 A battery pack 2 and an electrical component 3 are installed in the inner cavity of the housing 1, arranged vertically. The battery pack 2 is used for storing and releasing electrical energy, and the electrical component 3 is used for regulating charging and discharging operations and monitoring the battery pack 2 in real time. A socket 4 that is electrically connected to the electrical component 3 is embedded in the side wall of the housing 1. For example, the socket 4 accommodates the corresponding requirements of DC and AC input interfaces of American and European standards and is used to connect with the plug of external devices. The left and right side walls of the housing 1 are respectively provided with air inlets 6 and air outlets 7, so that the air inlets 6 and air outlets 7 are arranged opposite each other. The air inlets 6 and air outlets 7 are at the same height as the electrical component 3, and a cooling fan 8 is provided on one side of the electrical component 3 to connect with the air outlet 7.

[0029] The portable home energy storage device system assembly disclosed in this utility model achieves a compact arrangement of battery pack 2 and electrical components 3 within the housing 1. By setting the air inlet 6 and air outlet 7 to be at the same height as the electrical components 3, centralized heat dissipation of the electrical components 3 is achieved, thereby ensuring that the electronic devices operate within a reasonable temperature range. Furthermore, this application adopts a single-sided cooling fan 8, which reduces overall noise and manufacturing costs, and avoids the formation of backflow zones within the housing 1, ensuring a stable heat dissipation effect.

[0030] In this embodiment, Figure 4 In the example shown, the cooling fan 8 includes two fans, exemplarily a 6020 model with a rated speed of 5000 RPM. Traditional air cooling typically involves fans at both ends, with one fan blowing cool air into the electronic components to cool the heat generated, and the other fan drawing out the hot air generated after heat exchange. This cooling method is noisy and relatively expensive. This design considers the main heat-generating components to be arranged on both sides. Under the constraints of fan noise and cost, the two fans are concentrated at one end, which can simultaneously cool the main heat-generating components, drawing out the hot air generated after heat exchange. This cooling method is quieter than a two-fan-two-extraction design, and compared to a single-fan cooling design, it avoids internal backflow, resulting in better cooling performance.

[0031] In this case, both the air inlet 6 and the air outlet 7 include several through holes that connect to the inner cavity of the housing 1. The gap between the through holes is less than or equal to 2mm, thereby achieving the technical effect of preventing dust from entering and water droplets from entering. At the same time, the air inlet 6 and the air outlet 7 ensure the ventilation and heat dissipation area requirements while ensuring compressive strength.

[0032] refer to Figure 4 The battery pack 2 includes a module tray 201, battery cells 202, and module fixing slots 203. A plurality of battery cells 202 are arranged in an array, and the upper and lower ends of the plurality of battery cells 202 are respectively connected to the module tray 201 and the module fixing slots 203. The module fixing slots 203 are assembled in the housing 1 by a total of four bolts around the perimeter to ensure that the modules do not loosen during transportation or daily use. A bottom foam 204 is provided between the battery cells 202 and the module tray 201. For example, the bottom foam 204 is 2mm thick to take into account the force buffering during transportation and use.

[0033] Correspondingly, a predetermined gap is maintained between the battery cell 202 and the adjacent battery cell 202. For example, the predetermined gap is designed to be 3mm, so that there is no filling between the adjacent battery cells 202, forming a ventilation and heat dissipation space. Under the premise of ensuring thermal runaway and cycle life, the limitations and portability of the actual use scenario are fully considered, and the rationality and compactness of the internal structure of the box 1 are improved.

[0034] For example, cell 202 adopts a square-shell cell. Compared with the cylindrical cells used in mainstream products on the market, the rectangular-structured square-shell cell voltage platform can avoid the electrical short circuit and thermal runaway risk caused by the multi-parallel design of cylindrical cells. Moreover, the square-shell cell structure itself has a lower risk of thermal runaway than cylindrical cells.

[0035] The electrical component 3 includes a power board 301 mounted on the upper surface of the module fixing slot 203. The power board 301 is equipped with an inverter photovoltaic module 302 and several electronic components 303. The inverter photovoltaic module 302 includes an inverter and a photovoltaic heat sink. Since the inverter and photovoltaic heat sink are the main heat-generating devices, a cooling fan 8 is installed at one end of the power board 301. The cooling fan 8 is located between the air outlet 7 and the inverter, and the cooling fan 8 is used to specifically dissipate heat from the inverter and photovoltaic heat sink.

[0036] refer to Figure 5The electrical component 3 also includes a ventilation shroud 304, both ends of which are connected to the power board 301. A ventilation channel for housing the inverter and photovoltaic heat sink is formed between the ventilation shroud 304 and the power board 301. The two ends of the ventilation channel are respectively connected to the cooling fan 8 and the air inlet 6. The ventilation shroud 304 is made of PC material, which gives it heat-resistant and flame-retardant properties. Furthermore, by forming a ventilation channel, the cooling airflow is more concentrated in the main heat-generating area, thus improving the heat dissipation efficiency.

[0037] In addition, the ends of the inverter photovoltaic module 302 facing the cooling fan 8 and the air inlet 6 are provided with heat dissipation fins 305. The heat dissipation fins 305 are made of aluminum, which keeps the thermal conductivity of the heat dissipation fins 305 excellent, increases the heat dissipation contact area and heat conduction efficiency.

[0038] It should be further explained that in this case, a thermal pad is attached to the outer wall of the battery cell 202. The heat generated by the discharge of the battery cell 202 is transferred to the heat dissipation fins 305 through the thermal pad, and then the heat dissipation is achieved by the forced convection of the cooling fan 8 on the heat dissipation fins 305.

[0039] Since the heat generated by some electronic components 303 is relatively small compared to the inverter and photovoltaic heat sink, and their sensitivity to temperature range is relatively diffuse, due to cost and space limitations, this design only arranges heat sink fins 305 at the location where the electronic components generate more heat, that is, at the inverter photovoltaic module 302, to increase the contact area and enhance the thermal conductivity. The connection and fixing of intermediate components are fixed and heat is conducted through blue thermal conductive gel, which circulates and removes heat, keeping the electrical components 3 within a reasonable temperature operating range.

[0040] In this embodiment, the area of ​​the air inlet 6 is smaller than the area of ​​the air outlet 7. That is, the area of ​​the air inlet 6 is smaller but meets the heat dissipation performance, thereby increasing the area of ​​waterproof and dustproof barrier.

[0041] In addition, a touch panel 5, which is electrically connected to the electrical component 3, is embedded in the side wall of the housing 1. The touch panel 5 is a control panel used to display and control the corresponding data and functions of the energy storage device of this application. The touch panel 5 and the socket 4 are arranged opposite each other. For example, the touch panel 5 is located on the rear side wall of the housing 1, and the socket 4 is located on the front side wall of the housing 1.

[0042] A through groove is formed on the side wall of the upper side of the housing 1 near the touch panel 5 to form a carrying handle 9. The carrying handle 9 enables one-handed lifting and easy placement. Several coaxially arranged reinforcing ribs are provided on the side wall of the carrying handle 9 facing the through groove to improve the mechanical strength of the device during the lifting action and enhance the robustness of the device.

[0043] Furthermore, a wireless fast charging board 10, which is electrically connected to the electrical components 3, is embedded in the upper side wall of the housing 1 near the socket 4, integrating the socket 4, the wireless fast charging board 10, and the touch panel 5 into one unit to ensure the overall portability and multi-functionality of the device.

[0044] The housing 1 includes an upper housing and a lower housing, which are detachably connected by bolts. The cross-section of the housing 1 is rectangular to facilitate the disassembly and assembly of the entire device.

[0045] For example, the portable home energy storage device system assembly proposed in this application uses a 30Ah square-shell battery cell 202, with a 1P8S module design. The system capacity is 768Wh, and the total package weight is approximately 9 kg. The module's thermal management and heat dissipation scheme is natural cooling, which can achieve 1C charging and 1.5C discharging at a normal temperature of 25℃. The battery cell 202 will not explode or catch fire under conditions such as overcharging, over-discharging, overheating, compression, or short circuit, thus meeting safety requirements. The inverter's heat dissipation scheme is a forced air cooling design. At a high temperature of 40℃, the cooling fan 8 is turned on, with single-sided exhaust cooling to ensure that the electrical components 3 do not overheat during use. Furthermore, the BMS in the touch panel 5 intelligently adjusts the speed based on the heat generation and temperature sensing of the components during use, making reasonable power consumption utilization and ensuring the service life and safety of the electrical components 3. Moreover, the overall size is small and portable for home use, can be carried with one hand, and can be easily picked up and put down. It is commonly used for low-power household appliances or target audiences who love technology products, and can also be used for some outdoor RV travel, making it suitable for a variety of scenarios.

[0046] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of multiple components or the interaction between multiple components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In the description of this utility model, it should be understood that all terms used to indicate orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable home energy storage device system assembly, characterized in that, include: The box (1) has a battery pack (2) and an electrical component (3) installed inside its cavity. The side walls of the box (1) are respectively embedded with sockets (4) that are electrically connected to the electrical component (3). The side walls of the box (1) are provided with an air inlet (6) and an air outlet (7), and the air inlet (6) and the air outlet (7) are arranged opposite to each other. The air inlet (6) and the air outlet (7) are both at the same height as the electrical component (3), and a cooling fan (8) is provided on one side of the electrical component (3) to connect with the air outlet (7).

2. The portable home energy storage device system assembly according to claim 1, characterized in that, The air inlet (6) and air outlet (7) both include several through holes that connect to the inner cavity of the box body (1), and the gap between the through holes is less than or equal to 2 mm.

3. The portable home energy storage device system assembly according to claim 1, characterized in that, The battery pack (2) includes a module tray (201), a battery cell (202), and a module fixing slot (203). A plurality of battery cells (202) are arranged in an array, and the upper and lower ends of the plurality of battery cells (202) are respectively connected to the module tray (201) and the module fixing slot (203). A bottom foam (204) is provided between the battery cell (202) and the module tray (201).

4. The portable home energy storage device system assembly according to claim 3, characterized in that, A predetermined gap is maintained between the battery cell (202) and the adjacent battery cell (202).

5. The portable home energy storage device system assembly according to claim 3, characterized in that, The electrical component (3) includes a power board (301) mounted on the upper surface of the module fixing slot (203). The power board (301) is equipped with an inverter photovoltaic module (302) and several electronic components (303). A cooling fan (8) is mounted on one end of the power board (301). The cooling fan (8) is located between the air outlet (7) and the inverter photovoltaic module (302).

6. The portable home energy storage device system assembly according to claim 5, characterized in that, The electrical component (3) also includes a ventilation hood (304), both ends of which are connected to the power board (301). A ventilation channel for housing the inverter and photovoltaic heat sink is formed between the ventilation hood (304) and the power board (301). The two ends of the ventilation channel are respectively connected to the cooling fan (8) and the air inlet (6).

7. The portable home energy storage device system assembly according to claim 6, characterized in that, The inverter photovoltaic module (302) is provided with heat dissipation fins (305) at the ends facing the cooling fan (8) and the air inlet (6).

8. The portable home energy storage device system assembly according to claim 7, characterized in that, The area of ​​the air inlet (6) is smaller than the area of ​​the air outlet (7).

9. The portable home energy storage device system assembly according to claim 1, characterized in that, The side wall of the housing (1) is embedded with a touch panel (5) that is electrically connected to the electrical components (3). The touch panel (5) and the socket (4) are arranged opposite each other. A through groove is opened on the side of the upper side wall of the housing (1) near the touch panel (5) to form a carrying handle (9). A wireless fast charging board (10) that is electrically connected to the electrical components (3) is embedded in the side of the upper side wall of the housing (1) near the socket (4).

10. The portable home energy storage device system assembly according to any one of claims 1-9, characterized in that, The box (1) includes an upper box and a lower box, which are detachably connected by bolts, and the cross-section of the box (1) is rectangular.

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