A battery pack mounting structure

Abstract

The application discloses a battery pack mounting structure which comprises a support, a sealing end cover, an energy storage battery unit and a supporting piece, the support is internally provided with a flat installation cavity, the support is provided with a first connecting structure and a second connecting structure along the length direction, adjacent supports are flatly arranged and are spliced with each other through the first connecting structure and the second connecting structure to form a combined support, the sealing end cover is sealingly connected with the support and is used for sealing the flat installation cavity, the energy storage battery unit is installed in the flat installation cavity in cooperation, and the single support or the combined support is installed in the back frame of a solar photovoltaic panel through the supporting piece; the supporting piece is movably installed on the support and can be fixed after the length of the supporting piece extending out of the support is adjusted according to the size of the back frame of the solar photovoltaic panel; and the structure makes the battery pack and the photovoltaic assembly convenient to disassemble and assemble, has high heat dissipation efficiency and can flexibly adjust the number of the supports according to the energy storage and installation size requirements.

Description

Technical Field

[0001] This invention belongs to the technical field of battery assembly, and particularly relates to a battery pack mounting structure. Background Technology

[0002] Currently, solar photovoltaic modules and energy storage systems are usually installed separately and independently, and the energy storage end mostly adopts a stacked battery pack structure. In practical applications, the battery pack stacking structure and the independent installation from the photovoltaic modules have the following drawbacks:

[0003] First, it has poor heat dissipation performance. In a stacked battery structure, the individual cells are tightly stacked, making it difficult for the heat inside the battery pack to be quickly conducted and dissipated. This easily leads to the formation of local hot spots, causing the battery operating temperature to rise continuously, reducing the battery's cycle life and charge / discharge efficiency, and in severe cases, causing internal overheating or even thermal runaway.

[0004] Secondly, the maintenance costs are high. Stacked battery packs are mostly integrally packaged structures. When individual cells age, degrade in performance, or are damaged, the entire battery pack often needs to be replaced. Even if some cells fail, repair and disassembly are extremely inconvenient, resulting in high operation and maintenance costs.

[0005] Third, space utilization is insufficient. When traditional energy storage battery packs are placed indoors or in underground garages, they cause noise pollution and pose significant safety hazards. Furthermore, there is a lack of matching thin energy storage battery installation solutions on the back of existing photovoltaic modules. Traditional support structures are too thick and have a sealed internal space, which not only occupies a large amount of valuable installation space on the back of photovoltaic modules, hindering the overall thin and light design of the equipment, but also impedes the dissipation of heat from the battery pack.

[0006] Fourth, the size compatibility is inflexible. Photovoltaic modules and battery products cannot be flexibly adapted, meaning that batteries of different sizes and specifications, as well as photovoltaic modules of different sizes, cannot be used together, making it difficult to meet diverse assembly and usage needs. Summary of the Invention

[0007] The purpose of this invention is to solve at least one problem in the prior art and to propose a battery pack mounting structure.

[0008] To achieve the above objectives, this invention proposes a battery pack mounting structure, including a bracket, a sealed end cap, an energy storage battery unit, and a support member. The bracket has a flat mounting cavity inside, and the bracket has a first connecting structure and a second connecting structure along its length. Adjacent brackets are laid flat and then spliced ​​together through the first and second connecting structures to form a combined bracket. The sealed end cap is sealed to the bracket to seal the flat mounting cavity. The energy storage battery unit is installed in the flat mounting cavity. A single bracket or a combined bracket is installed in the back frame of the solar photovoltaic panel through the support member. The support member is movably mounted on the bracket, and its extension length from the bracket can be adjusted according to the back frame size of the solar photovoltaic panel before being fixed.

[0009] As an optional implementation, the bracket is provided with a limiting guide structure along its length, the sealing end cap is connected to the end of the bracket, the support member is slidably connected to the sealing end cap and the limiting guide structure of the bracket, and the support member is fixed after adjusting the length of the support member extending out of the sealing end cap according to the back frame of the solar photovoltaic panel.

[0010] As an optional implementation, the limiting guide structure is a limiting groove, and the cross-section of the limiting groove is C-shaped or square-shaped.

[0011] As an optional implementation, the first connecting structure is a bayonet, and the second connecting structure is a snap-fit ​​part that matches the bayonet. Adjacent brackets are laid flat and then spliced ​​together by the bayonet and snap-fit ​​part on the side to form a combined bracket.

[0012] As an optional implementation, when the sealing end cap is used to seal a single bracket, the two ends of the sealing end cap are provided with a first connecting part and a second connecting part that engage with the latches and latching parts on both sides of the single bracket. When the sealing end cap is used to seal a combined bracket, the two ends of the sealing end cap are provided with a first connecting part and a second connecting part that engage with the latches and latching parts of the bracket. The middle part of the sealing end cap is provided with a third connecting part that engages with the limiting groove. The sealing end cap is provided with a through hole for wiring.

[0013] As an optional implementation, the first connecting part is provided with a locking post, the second connecting part is provided with a connecting port, the locking post is fastened to the corresponding locking port, the connecting port is inserted into the corresponding locking part, and the third connecting part is inserted into the corresponding limiting groove, so that the sealing end cap is installed flush with the corresponding single bracket or combined bracket.

[0014] As an optional implementation, the left edge of the bracket is provided with two first connecting structures symmetrically distributed vertically along the length direction, and the right edge of the bracket is provided with two second connecting structures symmetrically distributed vertically along the length direction. When adjacent brackets are laid flat, they are spliced ​​together by the first and second connecting structures on the sides to form a combined bracket without obvious gaps.

[0015] As an optional implementation, a sealing gasket is fitted between the sealing end cap and the bracket, and a protruding structure is provided at one end of the sealing end cap near the bracket. When the sealing end cap is installed with the bracket, the protruding structure is inserted into the flat mounting cavity of the bracket.

[0016] As an optional implementation, the bracket is provided with a heat dissipation channel along its length, and the heat dissipation channel is interconnected with the flat mounting cavity.

[0017] As an optional implementation, a gap for ventilation and heat dissipation is reserved between the surface of the combined bracket or single bracket and the back plate of the solar photovoltaic panel, and the height of the bracket does not exceed the height of the back frame of the solar photovoltaic panel.

[0018] As an optional implementation, the combined bracket or single bracket is installed in a single layer flat within the back frame of the solar photovoltaic panel, or multiple combined brackets or single brackets are installed in multiple layers at intervals within the back frame of the solar photovoltaic panel.

[0019] As an optional implementation, the energy storage battery unit is a single long-blade battery or multiple short-blade batteries.

[0020] As an optional implementation, the bracket is made of lightweight alloy through an integral molding process. The inner wall of the flat mounting cavity is provided with an insulating protective layer for electrically isolating the energy storage battery unit from the inner wall of the bracket. The insulating protective layer is an insulating board or an insulating buffer and shock-absorbing pad. The lightweight alloy has good corrosion resistance, strength, and heat dissipation performance.

[0021] The beneficial effects of this invention are: 1. This invention provides a flat mounting cavity for installing energy storage battery units inside the support frame. Adjacent supports are laid flat and then spliced ​​together through a first connecting structure and a second connecting structure to form a combined support frame. Users can assemble any number of supports according to the back frame size of the solar photovoltaic panel and the energy storage requirements. The combined support frame can be installed flat, allowing each energy storage battery unit to have sufficient heat dissipation area. The heat generated by the energy storage battery unit during operation can be quickly dissipated to the surrounding environment, avoiding the heat accumulation problem caused by traditional battery stacking structures, effectively extending the battery cycle life, and maintaining stable charging and discharging efficiency.

[0022] 2. This application integrates the battery pack formed by assembling the bracket and energy storage battery unit into the back frame of the solar photovoltaic panel through a support member, so that the battery pack structure and the solar photovoltaic panel are integrated and installed together, without increasing the overall thickness of the solar photovoltaic panel after installation.

[0023] 3. This invention allows for flexible adjustment of the total length of the support and bracket by adjusting the length of the support extending out of the bracket, thus meeting diverse installation requirements. By detachably installing sealing end caps at the bracket ends, when each energy storage battery unit fails, it is not necessary to replace the entire battery pack; only the faulty individual cell in the corresponding chamber needs to be replaced, significantly reducing maintenance costs and operational difficulties. The flat mounting chambers between each bracket are separated, achieving physical isolation between each energy storage battery unit. If a fire or thermal runaway occurs in an energy storage battery unit within a single bracket chamber, the fire can be effectively contained, preventing it from spreading to energy storage battery units in other chambers, fundamentally solving the industry safety problem of cascading fires in stacked battery packs.

[0024] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the battery pack mounting structure with a dual bracket according to an embodiment of the present invention.

[0026] Figure 2 This is a split schematic diagram of the battery pack mounting structure with dual brackets according to an embodiment of the present invention.

[0027] Figure 3 This is a partial structural diagram of the battery pack mounting structure with dual brackets according to an embodiment of the present invention.

[0028] Figure 4 This is a partial structural diagram of the battery pack mounting structure with dual brackets according to an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of the battery pack mounting structure of a single bracket according to an embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the battery pack mounting structure of the bracket in Embodiment 3 of the present invention.

[0031] Figure 7 This is a schematic diagram of the energy storage battery unit structure according to an embodiment of the present invention.

[0032] Figure 8 This is a schematic diagram of the energy storage battery unit structure according to an embodiment of the present invention.

[0033] Figure 9 This is a schematic diagram of the support structure according to an embodiment of the present invention.

[0034] Figure 10 This is a schematic diagram of the support structure according to an embodiment of the present invention.

[0035] Figure 11 This is a front view of the bracket according to an embodiment of the present invention.

[0036] Figure 12 This is a schematic diagram of the sealing end cap according to an embodiment of the present invention.

[0037] Figure 13 This is a rear view of the sealing end cap according to an embodiment of the present invention.

[0038] Figure 14 This is a front view of the sealing end cap according to an embodiment of the present invention.

[0039] Figure 15 This is an embodiment of the present invention. Figure 14 Sectional view of plane AA.

[0040] Figure 16This is a schematic diagram of the battery pack installation structure and photovoltaic module installation according to an embodiment of the present invention.

[0041] In the diagram: 1. Bracket; 2. Sealed end cap; 3. Support component; 4. Energy storage battery unit; 5. Solar photovoltaic panel; 10. Flat installation cavity; 11. Bayonet; 12. Snap-fit ​​part; 13. Limiting groove; 21. First connecting part; 22. Second connecting part; 23. Third connecting part; 24. Installation channel. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. In the description of this application, it should be noted that the terms "inner," "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not 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 therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] The present invention will now be described in detail with reference to the accompanying drawings.

[0045] See Figures 1 to 16This embodiment provides a battery pack mounting structure, including a bracket 1, a sealing end cap 2, an energy storage battery unit 4, and a support member 3. The bracket 1 has a flat mounting cavity 10 inside. The bracket 1 is provided with a first connecting structure and a second connecting structure along its length. Adjacent brackets 1 are laid flat and spliced ​​together by the first connecting structure and the second connecting structure to form a combined bracket of the target size. The sealing end cap 2 is sealed to the bracket 1 to seal the flat mounting cavity 10. The energy storage battery unit is installed in the flat mounting cavity. A single bracket or a combined bracket is installed in the back frame of the solar photovoltaic panel 5 through the support member 3. After adjusting the length of the support member 3 extending out of the bracket 1 according to the size of the back frame of the solar photovoltaic panel 5, the support member 3 is fixed to the bracket 1 with fasteners.

[0046] See Figure 5 A single support consists of one support 1; see reference. Figure 1 and Figure 6 The combined support structure is composed of multiple supports 1 spliced ​​together. Depending on the actual splicing requirements, the lengths of the first and second connecting structures and the length of the support 1 can be the same or different.

[0047] During actual assembly, the number of brackets 1 in the combined support system can be selected based on the energy storage requirements and the size of the cavity formed by the back frame and back sheet of the solar photovoltaic panel 5. For example, the combined support system can be composed of 2, 3, 4, 5, or more than 2 brackets 1 sequentially spliced ​​together. The more brackets 1 there are, the more energy storage battery units 4 can be placed, resulting in a larger energy storage capacity, and the larger the size of the combined support system will be. The energy storage battery unit 4 is an energy storage battery.

[0048] When used as a single support, the energy storage battery unit 4 is laid flat and installed in the flat mounting cavity 10 of the support 1. The sealing end cap 2 is sealed and installed at the end of the single support. The single support is installed in the back frame cavity of the solar photovoltaic panel 5 through the support member 3. The energy storage battery unit 4 is electrically connected to the solar photovoltaic panel 5. When used as a combined support, multiple energy storage battery units 4 are laid flat and installed in the flat mounting cavity 10 of each support 1. The supports 1 are laid flat on both sides. The first connecting structure and the second connecting structure on both sides of the support 1 are connected to each other to form a combined support. Then the sealing end cap 2 is installed in the cavity 10 of the support 1. The end cap 2 is sealed and installed at the end of the combined bracket. The support member 3 is installed on the bracket 1. The combined bracket is installed inside the back frame of the solar photovoltaic panel 5 through the support member 3. The energy storage battery unit 4 is electrically connected to the solar photovoltaic panel 5. When it is necessary to adapt to the installation of back frames of solar photovoltaic panels 5 of different sizes, the length of the support member 3 extending out of the bracket 1 is adjusted by moving the support member 3, thereby changing the overall length of the battery pack installation structure. After adjusting to the predetermined length, the support member 3 is fixed to the bracket with fasteners, thereby meeting the assembly requirements of the battery pack installation structure to adapt to the back frames of solar photovoltaic panels 5 of different sizes.

[0049] In this embodiment, the bracket 1 is provided with a limiting guide structure along its length, the sealing end cap 2 is connected to the end of the bracket 1, and the support member 3 is slidably connected to the sealing end cap 2 and the limiting guide structure of the bracket 1. The support member 3 is fixed after adjusting the length of the support member extending out of the sealing end cap 2 according to the back frame size of the solar photovoltaic panel 5.

[0050] As one embodiment of this invention, the limiting guide structure is a limiting groove 13, and the support member 3 is slidably connected to the limiting groove of the sealing end cap 2 and the bracket 1.

[0051] In actual use, the cross-section of the limiting groove 13 is C-shaped or U-shaped. This shape design allows the limiting groove to provide a limiting and blocking effect on the support member 3, preventing loosening or misalignment during the movement of the support member and ensuring the stability of linear movement. Of course, the cross-section of the limiting groove 13 can also be dovetail-shaped, T-shaped, or other shapes that prevent loosening, detachment, or misalignment after the limiting groove 13 and the support member 3 are interlocked.

[0052] The support component 3 is an L-shaped or T-shaped support rod. One right-angled side of the support component 3 is slidably connected to the sealing end cap 2 and the limiting groove 13 of the bracket 1. The other right-angled side of the support component 3 is installed on the back frame of the solar photovoltaic panel 5. To facilitate the assembly and disassembly of the support component 3, the support component 3 and the solar photovoltaic panel 5 are fixed together with screws. The support component 3 is provided with threaded holes for easy screw installation. The support component 3 can be made of high-strength engineering plastic or lightweight alloy.

[0053] To improve the firmness of the connection between the support member 3 and the limiting groove 13 and the sealing end cap 2, the cross section of the support member 3 can also be set as T-shaped, trapezoidal, H-shaped or I-shaped. The limiting groove 13 and the sealing end cap 2 of the bracket 1 are compatible with the support member 3 to ensure that the support member 3 is not easy to loosen or misalign during the movement.

[0054] Depending on the length adjustment requirements of the support member 3, the limiting groove 13 can be set as a through groove (i.e., the limiting groove 13 penetrates the support 1 in the length direction) or a non-through groove.

[0055] To facilitate the sliding of the support member 3, a protruding structure that facilitates movement and pushing can also be provided on the outside of the support member 3. The protruding structure can be provided at one end of the support member 3 that is inserted into the limiting groove 13, and part of the protruding structure is exposed on the outside of the limiting groove 13. The protruding structure can also be provided in the middle of the support member 3 or at one end away from the limiting groove 13.

[0056] To facilitate the linear movement of the support member 3, the sealing end cap 2 is provided with an installation channel 24 for the support member 3 to pass through. After the sealing end cap 2 and the bracket 1 are sealed and installed, the installation channel 24 and the outermost limiting groove 13 of the bracket 1 are aligned with each other.

[0057] The fastener is a fastening stud, which is installed on the bracket 1 at the position relative to the limiting groove 13. The side wall of the bracket 1 is provided with a threaded hole for installing the fastening stud, and the fastening stud presses the support 3 into the limiting groove 13.

[0058] In other embodiments of this example, the limiting guide structure can also be a guide rail structure. The support member 3 has a sliding part, which is slidably mounted on the guide rail structure. The sliding part of the support member 3 moves linearly along the guide rail structure, and after moving to a predetermined position, the sliding part is fixed to the guide rail structure with fasteners.

[0059] In this embodiment, the first connecting structure is a bayonet 11, and the second connecting structure is a snap-fit ​​part 12 that matches the bayonet 11. After adjacent brackets 1 are laid flat, they are spliced ​​together by the bayonet 11 and the snap-fit ​​part 12 to form a combined bracket.

[0060] In this embodiment, refer to Figure 1 , Figure 2 , Figures 12 to 15 When the sealing end cap 2 is used to seal the end of a single bracket, the two ends of the sealing end cap 2 are provided with a first connecting part 21 and a second connecting part 22 that engage with the latches 11 and latching parts 12 on both sides of the single bracket. When the sealing end cap 2 is used to seal the end of a combined bracket, the two ends of the sealing end cap 2 are provided with a first connecting part 21 and a second connecting part 22 that engage with the latches 11 and latching parts 12 of the bracket 1. The middle part of the sealing end cap 2 is provided with a third connecting part 23 that engages with the limiting groove 13. The shape and size of the sealing end cap 2 can be changed and adjusted according to the number and size of the bracket 1. The sealing end cap 2 can meet the encapsulation requirements of a single bracket or a combined bracket.

[0061] In actual use, the sealing end cap 2 is provided with a through hole for wiring, which facilitates the cable lead-out of the energy storage battery unit 4. To ensure sealing performance, a sealing ring is provided at the gap between the cable and the through hole.

[0062] As one embodiment of this invention, the first connecting part 21 is provided with a locking post, the second connecting part 22 is provided with a connecting port, the locking post is fastened to the corresponding locking port 11, the connecting port is inserted into the corresponding locking part 12, and the third connecting part 23 is inserted into the corresponding limiting groove 13, so that the sealing end cover 2 is installed flush with the corresponding single bracket or combined bracket, and there is no obvious gap after installation. The overall assembly is compact and aesthetically pleasing.

[0063] In this embodiment, refer to Figure 3 , Figure 4 , Figure 10 , Figure 11The left edge of bracket 1 has two symmetrically distributed latches 11 along its length, and the right edge of bracket 1 has two symmetrically distributed snap-fit ​​parts 12 along its length. When two adjacent brackets 1 are laid flat, they are joined together using the latches 11 and snap-fit ​​parts 12 on the sides to form a seamless assembly. The design of multiple latches 11 and snap-fit ​​parts 12 ensures that the assembled brackets have a relatively flat surface and high aesthetic appeal, without compromising overall waterproofing or appearance. Furthermore, the multi-point splicing and stress distribution makes the assembled bracket more robust.

[0064] Two snap-fit ​​parts 12 form a stepped groove between the upper and lower surfaces of one side of the bracket 1. On the other side of the bracket 1, opposite to the stepped groove, is an overlapping part. The overlapping part is adjacent to the snap-fit ​​11. When the two brackets 1 are spliced ​​together, the overlapping part just overlaps on the stepped groove to better ensure the flatness of the splicing of the two brackets. In the width direction of the bracket 1, the length of the overlapping part is greater than the depth of the snap-fit.

[0065] In other embodiments, the number of slots 11 and latching parts 12 on both sides of the bracket 1 can be 1, 3, 4, or other numbers greater than 2.

[0066] In this embodiment, a sealing gasket is installed between the sealing end cap 2 and the bracket 1. The sealing end cap 2 has a protruding structure near the bracket 1. When the sealing end cap 2 and the bracket 1 are installed, the protruding structure is inserted into the flat mounting cavity 10 of the bracket 1 and is tightly pressed against its inner wall. The sealing end cap 10 and the bracket are fastened with screws. On the one hand, this improves the sealing performance between the sealing end cap 2 and the bracket 1, eliminates the risk of water leakage, significantly improves the waterproof sealing level, and ensures the safe operation of the internal battery pack in harsh environments such as outdoor rain, humidity, and dust. On the other hand, it facilitates the disassembly and assembly of the sealing end cap 2 and the bracket 1, making it convenient for the disassembly and replacement of the internal energy storage battery unit.

[0067] The sealing gasket can be a molded silicone gasket, a polyurethane gasket, or a butyl rubber gasket.

[0068] In other embodiments, the first connection structure and the second connection structure may also be magnetic structures.

[0069] In this embodiment, the support 1 is provided with a heat dissipation channel along its length, and the heat dissipation channel is connected to the flat isolation cavity 10, so that the heat dissipation effect of the energy storage battery unit 4 is better.

[0070] In actual use, in order to improve the heat dissipation effect of the energy storage battery unit 4, refrigerant can be filled into the heat dissipation channel. After filling with refrigerant, a corresponding sealing structure is set at the connection between the sealing end cap and the heat dissipation channel.

[0071] In this embodiment, a gap for ventilation and heat dissipation is reserved between the surface of the combined bracket or a single bracket and the back plate of the solar photovoltaic panel 5, thereby improving the heat dissipation effect of the battery pack. The height of the bracket 1 does not exceed the height of the cavity formed by the back frame and the back plate of the solar photovoltaic panel, and the bracket is located within the cavity.

[0072] In practical use, operators can select single or combined brackets, their quantity, and installation direction based on the dimensions of the solar photovoltaic panel's back frame and energy storage requirements. For example, single or combined brackets can be installed horizontally, vertically, or diagonally in a single layer on the solar photovoltaic panel's back frame. When the back frame of the solar photovoltaic panel is thick, single or combined brackets can be distributed in multiple layers along the height of the back frame, with spacing to allow for ventilation and heat dissipation. Multiple single brackets can be spaced apart on the back frame of the solar photovoltaic panel, or single and combined brackets can be spaced apart, or one or more combined brackets can be installed on the back frame of the solar photovoltaic panel.

[0073] In this embodiment, refer to Figure 7 and Figure 8 The energy storage battery unit 4 is a single long blade battery or multiple short blade batteries. The installation structure of this battery pack can be adapted to various specifications such as long blade batteries and short blade batteries to meet the installation requirements of photovoltaic energy storage systems of different sizes and power levels. It is especially suitable for integrated energy storage solutions of integrated photovoltaic energy storage modules.

[0074] In this embodiment, the bracket 1 is made of a lightweight alloy with good corrosion resistance, high strength, and heat dissipation through an integral molding process. The integral molding structure of the bracket 1 ensures overall mechanical strength, reduces the number of parts, and facilitates assembly. The bracket 1 has good corrosion resistance, high strength, and heat dissipation performance, and is lightweight with a long service life.

[0075] When the bracket 1 is made of lightweight alloy material, it is manufactured using an integrated die-casting process or an integrated extrusion molding process.

[0076] Lightweight alloys include, but are not limited to, aluminum alloys or stainless steel. Preferably, the support frame 1 is made of aluminum alloy through an integral molding process. This material has the following significant advantages: First, it has excellent natural heat dissipation performance, which can quickly conduct and dissipate the heat generated by the energy storage battery unit to the external environment, effectively improving heat dissipation efficiency; Second, it has high structural strength, which can withstand the mechanical stresses such as wind load and vibration during long-term outdoor operation of photovoltaic modules; Third, it has excellent weather resistance and corrosion resistance, making it suitable for use in the shaded areas on the back of outdoor solar photovoltaic panels; Fourth, it undergoes insulation and fireproofing treatment, which can provide an effective physical flame-retardant barrier in the event of thermal runaway of the battery.

[0077] In this embodiment, the inner wall of the flat mounting cavity 10 is provided with an insulating protective layer for electrically isolating the energy storage battery unit 4 from the inner wall of the bracket 1. When the bracket 1 is made of a lightweight alloy material, the insulating protective layer is an insulating board or an insulating buffer and shock-absorbing pad layer. The insulating isolation layer effectively avoids hard contact between the energy storage battery unit and the bracket, providing reliable insulation protection and improving the operational stability and safety of the energy storage battery unit. On the other hand, it can also provide a certain degree of buffer protection.

[0078] In other embodiments, the bracket 1 is made of a combination of high-strength engineering plastic and heat dissipation metal sheet, and is manufactured using an integral injection molding process.

[0079] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A battery pack mounting structure, characterized in that: The system includes a bracket, a sealed end cap, an energy storage battery unit, and supporting components. The bracket has an internal flat mounting cavity. Along its length, the bracket has a first connecting structure and a second connecting structure. Adjacent brackets, when laid flat, are joined together via the first and second connecting structures to form a combined bracket. The sealed end cap is sealed to the bracket to seal the flat mounting cavity. The energy storage battery unit is installed within the flat mounting cavity. A single bracket or combined bracket is installed within the back frame of the solar photovoltaic panel via the supporting components. The bracket has a limiting guide structure along its length. The sealed end cap is connected to the end of the bracket. The first connecting structure is a bayonet, and the second connecting structure is a snap-fit ​​part that matches the bayonet. Adjacent... After the brackets are laid flat, they are spliced ​​together by the side slots and latches to form a combined bracket. The limiting guide structure is a limiting groove. The support member is slidably connected to the sealing end cover and the limiting guide structure of the bracket. The length of the support member extending out of the sealing end cover is adjusted according to the back frame size of the solar photovoltaic panel and then fixed. When the sealing end cover is used to seal a single bracket, the two ends of the sealing end cover are provided with a first connecting part and a second connecting part that cooperate with the slots and latches on both sides of the single bracket. When the sealing end cover is used to seal a combined bracket, the two ends of the sealing end cover are provided with a first connecting part and a second connecting part that cooperate with the slots and latches of the bracket. The middle of the sealing end cover is provided with a third connecting part that interlocks with the limiting groove.

2. The battery pack mounting structure as described in claim 1, characterized in that: The sealing end cap is provided with a through hole for wiring.

3. The battery pack mounting structure as described in claim 1, characterized in that: The first connecting part is provided with a locking post, the second connecting part is provided with a connecting port, the locking post is fastened to the corresponding locking port, the connecting port is inserted into the corresponding locking part, and the third connecting part is inserted into the corresponding limiting groove, so that the sealing end cap is installed flush with the corresponding single bracket or combined bracket.

4. The battery pack mounting structure as described in claim 1, characterized in that: The left edge of the bracket has two first connecting structures symmetrically distributed vertically along its length, and the right edge of the bracket has two second connecting structures symmetrically distributed vertically along its length. When adjacent brackets are laid flat, they are spliced ​​together by the first and second connecting structures on the sides to form a combined bracket without obvious gaps.

5. The battery pack mounting structure as described in claim 1, characterized in that: A sealing gasket is fitted between the sealing end cap and the bracket. The sealing end cap has a protruding structure near the bracket end. When the sealing end cap is installed with the bracket, the protruding structure is inserted into the flat mounting cavity of the bracket.

6. The battery pack mounting structure as described in claim 1, characterized in that: The bracket has a heat dissipation channel along its length, and the heat dissipation channel is connected to the flat installation cavity.

7. The battery pack mounting structure as described in claim 1, characterized in that: The combined brackets or single brackets are installed in a single layer flat inside the back frame of the solar photovoltaic panel, or multiple combined brackets or single brackets are installed in a single layer or multiple layers at intervals inside the back frame of the solar photovoltaic panel. A gap for ventilation and heat dissipation is reserved between the surface of the combined brackets or single brackets and the back plate of the solar photovoltaic panel. The height of the brackets does not exceed the height of the back frame of the solar photovoltaic panel.

8. The battery pack mounting structure as described in claim 1, characterized in that: The bracket is made of lightweight alloy through an integral molding process. The inner wall of the flat mounting cavity is provided with an insulating protective layer for electrically isolating the energy storage battery unit from the inner wall of the bracket. The insulating protective layer is an insulating board or an insulating buffer and shock-absorbing pad. The energy storage battery unit is a single long blade battery or multiple short blade batteries.

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