A mobile outdoor energy storage system with air-cooled heat dissipation device

Abstract

The utility model belongs to the energy storage battery technical field especially relates to a mobile outdoor energy storage system with air -cooled heat abstractor, including base, shell and gyro wheel, the gyro wheel is installed in the one end of base, the shell is installed on the base, the shell inside is installed with module subassembly and current transformer subassembly, the shell top is installed with wireless charging panel, the shell side wall is installed with display screen and plug -in port, current transformer subassembly includes current transformer body and main air -duct casing, main air -duct casing and current transformer body are located module subassembly, and current transformer body is located main air -duct casing inside, the both ends of main air -duct casing are installed with no. One fan and no. Two fans, main air -duct casing is connected with air inlet casing in the one end of installing no. One fan, and main air -duct casing is connected with air outlet casing in the one end of installing no. Two fans, and the heat dissipation design that is wrapped up to current transformer body is carried out through main air -duct casing, can make the heat that mobile energy storage system's PCS generates in operation effectively dissipates.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage battery technology, and specifically relates to a mobile outdoor energy storage system with a wind-cooled heat dissipation device. Background Technology

[0002] In recent years, with the booming development of the new energy industry, mobile outdoor energy storage has emerged. From the demand side, the main application markets for portable and mobile energy storage are concentrated in the United States and Japan. Among them, the United States is the world's largest market for mobile outdoor energy storage, mainly because of the high penetration rate of outdoor activities and the large demand for mobile outdoor energy storage. Mobile energy storage integrates battery packs, converters (PCS), and power distribution devices, providing multiple electrical interfaces (AC output / DC output / fast charging). It is also equipped with safety measures such as battery status detection and PCS status monitoring, and features "portability, large capacity, high power, low noise, energy saving and emission reduction, and green environmental protection." It enables human-machine interaction between users and integrated terminals, and mobile outdoor energy storage is gradually penetrating into multiple application scenarios.

[0003] Therefore, there is an urgent need for a heat dissipation energy storage device that can effectively solve the heat dissipation problem of outdoor energy storage power supplies. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a mobile outdoor energy storage system with a wind-cooled heat dissipation device, comprising a base, a housing, and wheels; the wheels are installed at one end of the base, and the housing is installed on the base;

[0005] The housing contains module components and inverter components; the top of the housing has a wireless charging pad; and the side walls of the housing have a display screen and plug-in ports.

[0006] The inverter assembly includes an inverter body and a main air duct housing; the main air duct housing and the inverter body are located on the module assembly, and the inverter body is located inside the main air duct housing; a No. 1 fan and a No. 2 fan are respectively installed at both ends of the main air duct housing; an air inlet housing is connected to the end of the main air duct housing where the No. 1 fan is installed, and an air outlet housing is connected to the end of the main air duct housing where the No. 2 fan is installed.

[0007] Furthermore, the module assembly includes a module housing; a battery cell body is installed inside the module housing, and a module tray is installed on the battery cell body; a module fixing component is installed outside the module housing, and the module fixing component is connected to the base.

[0008] Furthermore, a push-pull rod is installed on the base at the end away from the roller.

[0009] Furthermore, a support base is provided at the bottom of the base at the end away from the roller.

[0010] Furthermore, a support column is provided between the bottom of the converter body and the module housing.

[0011] Furthermore, the module housing is equipped with support plates on both sides of the support column.

[0012] Furthermore, the module housing includes a base plate and side plates, with the battery cell body located in a slot in the base plate and the side plates supporting the side walls of the battery cell body.

[0013] Furthermore, both the air inlet housing and the air outlet housing are inclined downwards from the center, and a drain outlet is provided at the end of both the air inlet housing and the air outlet housing away from the converter body.

[0014] Furthermore, louvers are installed at the air vents of the air inlet and outlet housings.

[0015] Furthermore, a handle is provided on the top of the casing.

[0016] Beneficial effects

[0017] The advantages of this utility model over the prior art are as follows:

[0018] 1. This application uses the main air duct shell to enclose the main body of the converter for heat dissipation design, which can effectively dissipate the heat generated by the PCS of the mobile energy storage system during operation, thereby ensuring that the electronic components in the converter body operate within a reasonable temperature range and will not cause the risk of overheating and damage to the components.

[0019] 2. This application uses a fixed frame design for the module housing to make the battery pack, which consists of the entire battery body, airtight and structurally strong and vibration-resistant.

[0020] 3. This application ensures waterproof and dustproof effects by having a certain inclination angle for both the air inlet path in the air inlet housing and the air outlet path in the air outlet housing, and by providing a drain outlet.

[0021] 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

[0022] 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.

[0023] Figure 1 A front view of the overall embodiment of this utility model is shown.

[0024] Figure 2 A top view of the overall embodiment of this utility model is shown.

[0025] Figure 3 A front view of the overall embodiment of this utility model is shown.

[0026] Figure 4 A rear view of the overall embodiment of this utility model is shown.

[0027] Figure 5 A schematic diagram of the overall structure of an embodiment of this utility model is shown.

[0028] Figure 6 A schematic diagram of the structure with the outer shell removed is shown in an embodiment of this utility model.

[0029] Figure 7 An exploded view of the converter assembly in an embodiment of this utility model is shown.

[0030] Figure 8 A schematic diagram of the interior of the module component in an embodiment of this utility model is shown.

[0031] Figure 9 A schematic diagram of the interior of the converter assembly in an embodiment of this utility model is shown.

[0032] Figure 10 It shows Figure 9 Front and back views of fan number one and fan number two.

[0033] Figure 11 It shows Figure 9 Enlarged view of the drain outlet location at point e.

[0034] Figure 12 It shows Figure 9 Enlarged view of the air outlet location at point f.

[0035] In the image, 1. Base; 2. Outer shell; 3. Casters; 4. Wireless charging pad; 5. Display screen; 6. Plug-in port;

[0036] 71. Module housing; 711. Base plate; 712. Side plate; 72. Battery cell body; 73. Module tray; 74. Module fixing component;

[0037] 81. Inverter body; 82. Main air duct housing; 83. Fan No. 1; 84. Fan No. 2; 85. Inlet air duct housing; 86. Outlet air duct housing;

[0038] 9. Press-pull rod; 10. Support base; 11. Support column; 12. Support plate; 13. Handle; 14. Drain outlet. Detailed Implementation

[0039] 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.

[0040] This application provides a mobile outdoor energy storage system with an air-cooled heat dissipation device, referenced... Figure 1 It includes a base 1, a housing 2, and a roller 3; the roller 3 is installed at one end of the base 1, and the housing 2 is installed on the base 1.

[0041] The module assembly and converter assembly are installed inside the casing 2; Reference Figure 2 and Figure 5 The top of the outer casing 2 is equipped with a wireless charging pad 4; (Reference) Figure 3 The outer casing has a display screen 5 and a plug-in port 6 mounted on its two side walls;

[0042] refer to Figure 3 , 4 6 and 7, the converter assembly includes a converter body 81 and a main air duct housing 82; the main air duct housing 82 and the converter body 81 are located on the module assembly, with the converter body 81 located inside the main air duct housing 82; Reference Figure 10 The main air duct housing 82 is equipped with a No. 1 fan 83 and a No. 2 fan 84 at its two ends respectively. Figure 7 (Diagram showing the fan mounting point at point d); the main air duct housing 82 has an inlet housing 85 connected to the end where the first fan 83 is installed, and an outlet housing 86 connected to the end where the second fan 84 is installed (see reference). Figure 6 (Point C in the middle is a schematic diagram of the air duct connection).

[0043] The converter body 81 employs a forced air cooling design for heat dissipation. At a high temperature of 40℃, both fan 83 and fan 84 are activated. The two fans (fan 83 and fan 84) form a two-extraction, two-blowing design, using 7025 specification fans with a rated speed of 4000 rpm. This effective heat dissipation ensures that the electronic components in the converter body 81 will not overheat during operation. Furthermore, the BMS intelligently adjusts the fan speed based on the heat generated by the electronic components during operation, resulting in reasonable power consumption and ensuring the lifespan and safety of the electronic components. This design is widely used in home and outdoor mobile energy storage scenarios, such as RV camping, outdoor fishing, self-driving, and home emergency applications.

[0044] The wireless charging pad 4 has a maximum output power of 18W, and the air intake at the air duct housing position ( Figure 5 (at point a) and the air outlet at position 86 of the air outlet housing ( Figure 5 The maximum gap between the air vents at point b in the diagram does not exceed 2mm (reference). Figure 12 This design ensures that the ventilation holes are as dust-proof and water-proof as possible, while also ensuring the required ventilation area and pressure resistance of the ventilation holes. The corresponding socket and panel design takes into account the requirements of both US and European DC and AC input interfaces.

[0045] Meanwhile, the inverter body 81 (PCS energy storage inverter) generates the most heat during operation due to the internal inverter and photovoltaic heat sink, therefore heat dissipation fins are added to these two locations. Figure 7 The converter body 81 (not shown) is made of aluminum, which has excellent thermal conductivity, increasing the heat dissipation contact area and heat conduction efficiency. The internal main air duct shell 2 completely surrounds the converter body 81 and is made of PC+ABS, which has a certain heat resistance and flame retardant effect. This design allows the cold air cooling speed to be more concentrated in the internal heat-generating area, making heat dissipation more effective. Unlike conventional battery module air cooling, cell air cooling involves attaching thermal pads or spraying thermal adhesive on the module components or battery pack to enhance the thermal conductivity. The heat generated by the charging and discharging of the cell body 72 is transferred to the heat dissipation fins through an intermediate medium. The air cooling generates forced convection on the heat dissipation fins, thus achieving heat dissipation. Some components of electronic devices generate relatively little heat and are more sensitive to temperature ranges. Therefore, due to cost and space constraints, this design only arranges heat sinks at the locations where heat generation is more significant, namely at the inverter and photovoltaic devices, to increase the contact area and enhance the thermal conductivity. At the same time, the connection and fixation between the heat sink and the PCB board components are fixed and heat is conducted through blue thermal conductive gel. Other electronic components are also fixed and heat is conducted through corresponding thermal conductive adhesives. Heat is removed through heat exchange cycles, keeping the electronic devices within a reasonable operating temperature range.

[0046] This application utilizes a heat dissipation design to effectively dissipate the heat generated by the PCS in the mobile energy storage system during operation, thereby ensuring that the electronic components in the converter body 81 operate within a reasonable temperature range and are not at risk of overheating and damage. The heat dissipation design is reasonable and the operation is safe and reliable. Compared with the current mainstream air-cooled heat dissipation design, this design has functions such as waterproofing, dustproofing, and shockproofing, with superior performance. It can also reduce the risk of thermal runaway and thermal propagation, and has a broad application market, which can create economic value for enterprises and society.

[0047] In one embodiment of this utility model, reference is made to... Figure 6 and Figure 8 The module assembly includes a module housing 71; a battery cell body 72 is installed inside the module housing 71, and a module tray 73 is installed on the battery cell body 72; a module fixing member 74 is installed outside the module housing 71, and the module fixing member 74 is connected to the base 1.

[0048] The battery cell body 72 uses a square-shell 30Ah battery cell, the module assembly is a 2P16S design, the system rated capacity is 3072Wh, and the whole package weighs about 49 kg; the module thermal management heat dissipation solution is natural cooling, and it can achieve 1C charging and 1.5C discharging at room temperature of 25℃. In the event of thermal runaway of the battery cell, it will not explode or catch fire under thermal propagation, and it can pass the UL1973 certification standard.

[0049] The PCS and air intake / exhaust ducts in the heat dissipation system are fixedly supported above the module components. The module fastener 74 is a rivet, and the module housing 71 is fixed to the base 1 by the rivet, ensuring that the module components do not loosen during transportation or daily use. Considering the limitations of actual use scenarios and portability, this device makes full use of the internal space of the entire package, with a reasonable structural layout and tight fixation.

[0050] In one embodiment of this utility model, reference is made to... Figure 5 A push rod 9 is installed on the base 1 at the end away from the roller 3.

[0051] The bottom is equipped with a push-pull lever 9. When movement is required, the lever can be pressed and pulled out, making it easy to pull the entire energy storage device with one hand.

[0052] In one embodiment of this utility model, reference is made to... Figure 5 The bottom of the base 1 is provided with a support seat 10 at the end away from the roller 3;

[0053] The support base 10 ensures the stability of the energy storage system during normal use when it does not need to be moved.

[0054] In one embodiment of this utility model, reference is made to... Figure 6 and Figure 7 A support column 11 is provided between the bottom of the converter body 81 and the module housing 71.

[0055] Support columns 11 are directly installed on the converter body 81 and the module housing 71 to improve the air-cooling heat dissipation effect of the module.

[0056] In one embodiment of this utility model, reference is made to... Figure 6 and Figure 7 The module housing 71 has support plates 12 on both sides of the support column 11.

[0057] The support plate 12 is positioned corresponding to the air inlet housing 85 and the air outlet housing 86, which ensures synchronous heat dissipation of the module housing 71 while improving the support for the inverter components.

[0058] In one embodiment of the present invention, the module housing 71 includes a base plate 711 and a side plate 712, the battery cell body 72 is located in the slot of the base plate 711, and the side plate 712 supports the side wall of the battery cell body 72.

[0059] The battery cell body 72 is fixed and supported by the base plate 711 and the side plate 712 to ensure the reasonable distribution of the battery cell body 72. The battery cell body 72 is fixed in sequence inside the slot of the base plate 711, and the side plate 712 plays a supporting and protective role. The entire module assembly is sealed and has a strong and vibration-resistant structure; it has IP55 protection capability; at the same time, the gap between the battery cell body 72 is designed to be 3mm without filling in the middle. While ensuring thermal runaway and cycle life, it also takes into account cost reduction. The slot of the base plate 711 and the bottom of the battery cell body 72 are filled with 2mm foam to buffer the downward pressure of the force during transportation and use.

[0060] In one embodiment of this utility model, reference is made to... Figure 6 and Figure 9 Both the inlet duct housing 85 and the outlet duct housing 86 are inclined downwards with the center as the starting point, for reference. Figure 11 Both the air inlet housing 85 and the air outlet housing 86 are provided with a drain outlet 14 at the end away from the converter body 81.

[0061] Both the inlet path in the inlet housing 85 and the outlet path in the outlet housing 86 have a certain angle of inclination. In order to take into account the corresponding design of waterproofing and dustproofing, a balance is made between waterproofing, dustproofing and heat dissipation. A certain angle of inclination will result in a corresponding loss of airflow. When selecting the No. 1 fan 83 and the No. 2 fan 84, a certain amplification factor should be given to ensure the heat dissipation effect. At the same time, the waterproofing principle is different from the method used by mainstream products on the market. Most of them are currently only waterproof. This design improves the corresponding waterproofing level. That is, after water droplets enter the air duct, due to the inclination angle and gravity, even if the water droplets enter the air duct, they will be discharged along the pre-reserved drain outlet 14 and will not adhere to the electronic components and pose a safety risk. At the same time, if water droplets splash in from the side of the No. 2 fan 84 at the outlet, the corresponding water droplets can also be discharged or dried by the internal exhaust fan.

[0062] In one embodiment of this utility model, louvers are installed at the air inlets of the air inlet housing 85 and the air outlet housing 86.

[0063] By adding louvers to the air vents, the internal waterproof rating can be improved, providing some protection against splash tests; at the same time, the entire module is sealed, ensuring a safe and reliable structure that is waterproof, dustproof, and shockproof.

[0064] In one embodiment of this utility model, a handle 13 is provided on the top of the outer casing 2.

[0065] The handle 13 facilitates the horizontal pulling of the energy storage system over short distances; at the same time, the reinforcing ribs at the handle 13 ensure that the lifting action can withstand some mechanical strength.

[0066] Compared to the PCS cooling method used in mainstream 3600W portable outdoor energy storage products on the market, this product features a four-fan cooling design with two exhaust fans and two blowers on each side. This design achieves a balance between noise reduction, waterproofing, dustproofing, ventilation, and heat dissipation without increasing costs, thus reducing noise and saving costs. For waterproofing, it innovatively uses a 10-degree tilt angle for the air duct and adds louvers at the air outlets, improving the internal waterproof rating and providing some protection against splash tests. The entire module is sealed, ensuring a safe and reliable structure that is waterproof, dustproof, and shockproof. Furthermore, the square-shell battery cells used in this product, compared to the cylindrical cells used in mainstream products, avoid the electrical short-circuit and thermal runaway risks associated with the multi-parallel design of cylindrical cells. The square-shell structure itself also carries a lower risk of thermal runaway than cylindrical cells.

[0067] 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 mobile outdoor energy storage system with a wind-cooled heat dissipation device, characterized in that, It includes a base (1), a housing (2), and a roller (3); the roller (3) is installed at one end of the base (1), and the housing (2) is installed on the base (1); The outer casing (2) contains module components and converter components; The converter assembly includes a converter body (81) and a main air duct housing (82); the main air duct housing (82) and the converter body (81) are located on the module assembly, and the converter body (81) is located inside the main air duct housing (82); a first fan (83) and a second fan (84) are respectively installed at both ends of the main air duct housing (82); an air inlet housing (85) is connected to the end of the main air duct housing (82) where the first fan (83) is installed, and an air outlet housing (86) is connected to the end of the main air duct housing (82) where the second fan (84) is installed.

2. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 1, characterized in that, The module assembly includes a module housing (71); a battery cell body (72) is installed inside the module housing (71), and a module tray (73) is installed on the battery cell body (72); a module fastener (74) is installed outside the module housing (71), and the module fastener (74) is connected to the base (1).

3. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 1, characterized in that, The top of the housing (2) is equipped with a wireless charging pad (4); the side wall of the housing (2) is equipped with a display screen (5) and a plug-in port (6); a push-pull rod (9) is installed on the base (1) at the end away from the roller (3).

4. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 1, characterized in that, The bottom of the base (1) is provided with a support seat (10) at the end away from the roller (3).

5. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 2, characterized in that, A support column (11) is provided between the bottom of the converter body (81) and the module housing (71).

6. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 5, characterized in that, The module housing (71) is provided with support plates (12) on both sides of the support column (11).

7. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 2, characterized in that, The module housing (71) includes a base plate (711) and a side plate (712). The cell body (72) is located in the slot of the base plate (711), and the side plate (712) supports the side wall of the cell body (72).

8. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 1, characterized in that, Both the inlet duct housing (85) and the outlet duct housing (86) are inclined downwards from the center. Both the inlet duct housing (85) and the outlet duct housing (86) have a drain outlet (14) at the end away from the converter body (81).

9. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 1, characterized in that, Louvers are installed at the air inlets of the air inlet housing (85) and the air outlet housing (86).

10. A mobile outdoor energy storage system with a wind-cooled heat dissipation device according to claim 1, characterized in that, The top of the outer casing (2) is provided with a handle (13).

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