Battery pack box capable of being stacked stably

Abstract

The invention relates to a battery pack box capable of being stacked stably in the technical field of batteries, and the battery pack box comprises a base, a plurality of battery box bodies are stacked at the top of the base, and inverters are stacked at the tops of the battery box bodies; quick-plug butt joints are arranged between the bottom of the inverter and the tops of the battery box bodies and between every two adjacent battery box bodies; buffer layers are mounted on the periphery of the bottom of the battery box body and the periphery of the bottom of the inverter; and air bag type buffer assemblies are arranged at the bottoms of the battery box bodies. Full positioning of structures of all layers is achieved, relative displacement between all layers is prevented, when a single module is overhauled or replaced, excessive fixing parts do not need to be dismantled, the operation and maintenance time is greatly shortened, the working efficiency is improved, and through the three-level buffering synergistic effect, the service life of the module is prolonged. And the vibration acceleration peak value is reduced below the tolerance threshold value of the battery module, so that the cycle service life is remarkably prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a stably stackable battery pack box. Background Art

[0002] A stacked battery pack, also known as a stacked energy storage system, is a modular energy storage solution that combines multiple energy storage units (such as battery modules and supercapacitor banks) in a "stacked" configuration. It integrates batteries, inverters, and management systems into a single unit, simplifying installation and reducing footprint. Standardized interfaces and control systems enable flexible expansion of storage capacity and power, while improving system reliability, efficiency, and ease of operation and maintenance. Each storage unit possesses independent storage, monitoring, and control functions, allowing for flexible assembly like building blocks, allowing for adjustments in total capacity (kWh) and power (kW) as needed. For example, a basic module with a capacity of 100 kWh can be stacked to achieve a total capacity of 1 MWh, making it suitable for a variety of applications, such as telecommunications base stations and renewable energy storage. Existing battery packs generally lack effective positioning and securing mechanisms when stacked. When subjected to external vibration or impact, stacked battery packs become unstable and prone to displacement or tipping, impacting normal use and potentially causing safety hazards.

[0003] In order to solve the instability problem of existing battery packs, a battery box stacking and fixing system on the market uses a direct fixing method to reinforce multi-layer battery pack boxes, such as the battery box stacking and fixing system and stacking and fixing method with the authorization announcement number CN119481514B. The system includes: multiple battery box assemblies and several first bracket assemblies. There is a gap between two adjacent layers of battery box assemblies. The support plate of the battery box assembly is detachably connected to the battery box body. The number of first bracket assemblies is less than the number of battery box assemblies. Multiple battery box assemblies and several first bracket assemblies are arranged in sequence along the first direction. The first bracket assemblies and the support plates are staggered in sequence. In the first bracket assembly, the second bracket unit is located between the two first bracket units. The second bracket unit is fixedly connected to the two first bracket units respectively. The first bracket assembly is wavy. The first bracket unit is detachably connected to the two adjacent support plates respectively. The second bracket unit is detachably connected to the two adjacent support plates respectively. This solves the problem of how to install and fix the battery box.

[0004] Combined with the above patents, it is found that the existing technology has the following deficiencies: the existing technology adopts a direct fixing method to ensure the stability of the stacked batteries. However, direct fixing is not convenient for disassembly and assembly. When the stacked battery pack box needs to be inspected or a single module needs to be replaced, multiple fixing components often need to be removed. The operation is cumbersome and time-consuming, which seriously affects the operation and maintenance efficiency; and when external force vibration occurs, the direct fixing method lacks effective buffering and shock absorption capabilities. The impact force generated by the vibration will be directly transmitted to the battery module, which can easily cause damage to the internal structure of the battery, affect the battery performance and service life, and may even cause safety hazards such as battery leakage and short circuit. It cannot provide reliable safety protection for the stacked battery pack boxes. Therefore, it is urgent to propose a stably stackable battery pack box to improve the above problems. Summary of the Invention

[0005] To solve the above problems, the present invention provides a stably stackable battery pack, comprising: A base, wherein a plurality of battery box bodies are stacked on top of the base, and an inverter is stacked on top of the battery box body, and quick-plug connectors are provided between the bottom of the inverter and the top of the battery box body, as well as between two adjacent battery box bodies; A buffer layer is installed around the bottom of the battery box body and the bottom of the inverter; The bottom of the battery box body is provided with an airbag-type buffer assembly, and the airbag-type buffer assembly includes a fixing frame installed at the corners of the inner wall of the battery box body. A circular cavity is opened inside the fixing frame, and an airbag tube is installed on the top of the inner wall of the circular cavity. An inflation assembly is provided between the airbag tubes. The bottom of the circular cavity is provided with a through-hole that passes through the fixing frame and the bottom of the battery box body, and a movable hoop is installed at the bottom of the airbag tube. A movable seat passing through the through-hole is fixed to the bottom of the movable hoop. Through-holes for inserting the bottom of the movable seat are opened on all four sides of the top of the buffer layer, and a first buffer pad is installed at the bottom of the movable seat. Reinforcement mechanisms are provided on both sides of the top of the base and between the battery box body and both sides of the inverter; The base and the reinforcement mechanism are provided with a heat dissipation component; Positioning components and elastic latch components are provided at the bottom of the inverter and the top of the battery box body, between two adjacent battery box bodies, and between the bottom of the battery box body and the top of the base.

[0006] The present invention is further configured such that the inflation assembly includes an air pipe fixedly connected between the two ends of the four air bag tubes, and a micro air pump is installed on one side of the bottom inner wall of the battery box body, and the exhaust end of the micro air pump is fixedly connected to the air pipe.

[0007] The present invention is further configured as follows: the reinforcement mechanism includes placement slots provided on both sides of the top of the base, and the inner walls of the placement slots are hingedly provided with a rotating frame, the inner walls of the rotating frame are plugged with a telescopic frame, and the cross-sections of the telescopic frame and the rotating frame are designed to be U-shaped, the inner walls of both sides of the rotating frame are provided with a limiting slot, and the bottom of the outer walls of both sides of the telescopic frame are fixed with a limiting block plugged in the top of the inner wall of the limiting slot, both ends of the battery box body and both ends of the inverter are provided with a card slot, and the rotating frame and the telescopic frame are both clamped in the card slot, the inner wall top of the card slot at both ends of the inverter is provided with a reinforcement hole, and one side top of the two telescopic frames is provided with a connecting hole, the inner wall of the connecting hole is plugged with a reinforcement pin, one end of the reinforcement pin is plugged in the connecting hole, a fixing ring is fixed on one side of the outer wall of the reinforcement pin, and a first spring is installed on one side of the fixing ring and the inner wall of the telescopic frame, and the other end of the reinforcement pin is fixed with a handle frame.

[0008] The present invention is further configured such that the heat dissipation assembly includes a hose installed at the bottom of one end of the rotating frame, and the bottom inner walls of the two placement slots are provided with pipe holes for the hose to pass through, one end of one of the hoses is fixed with an exhaust pipe, and the top of the exhaust pipe and the bottom of the base are provided with a reinforcement seat, a cooling fan is installed on one side of the bottom of the base, and an air guide pipe is installed at the exhaust end of the cooling fan and one end of the other hose, ventilation slots connected to the card slots are provided on both sides of the battery box body and both sides of the inverter, and the rotating frame and the telescopic frame are wrapped around the outside of the ventilation slots.

[0009] The present invention is further configured such that the inner wall of the telescopic frame close to the heat dissipation fan is provided with equidistantly distributed wind distribution inclined plates.

[0010] The present invention is further configured such that the buffer layer is a honeycomb metal layer, and the honeycomb pores of the buffer layer are filled with PCM phase change material.

[0011] The present invention is further configured such that the two reinforcement mechanisms are distributed symmetrically with respect to the center of the base, and brake universal wheels are installed at the four corners of the bottom of the base.

[0012] The present invention is further configured such that the positioning assembly includes positioning grooves opened in the middle of the bottom of the battery box body and the middle of the bottom of the inverter, and an insertion frame inserted into the positioning groove is installed in the middle of the top of the base and the middle of the top of the battery box body.

[0013] The present invention is further configured such that a plurality of damping shock absorbers are installed on the bottom inner wall of the insertion frame, and a magnetic plate inserted in the positioning groove is installed on the top of the damping shock absorber, the top of the magnetic plate is magnetically adsorbed to the top of the positioning groove, anti-slip grooves are provided on the inner walls at both ends of the insertion frame, and L-shaped limit plates are fixed on both sides of the bottom of the magnetic plate, the L-shaped ends of the L-shaped limit plates are inserted in the anti-slip grooves, the same second buffer pad is fixed around the bottom of the magnetic plate, and the second buffer pad is fitted around the top of the insertion frame.

[0014] The present invention is further configured such that the elastic latch assembly includes positioning slots at the four corners of the bottom of the battery box body and the four corners of the bottom of the inverter, and the four corners of the top of the battery box body and the four corners of the top of the base are fixed with positioning sockets inserted into the positioning slots, connecting slots are provided on all four sides of the positioning sockets, and auxiliary teeth are inserted into the inner walls of the connecting slots, a second spring is installed at one end of the auxiliary teeth and one end of the connecting slot, tooth grooves are provided on the inner walls all around the positioning slots, and a magnetic block is installed at one end of the inner wall of the tooth groove, the auxiliary teeth are inserted into the tooth grooves by the adsorption action of the magnetic block, the cross-section of the tooth groove is designed to be triangular, and a third buffer pad is installed on the top of the positioning socket to fit the inner wall of the top of the positioning slot.

[0015] In summary, after adopting the above structure, the present invention has the following advantages compared with the prior art: 1. The present invention plays a key role in the coordination of the positioning assembly and the elastic latch assembly in terms of stable stacking and portable assembly and disassembly. Through the precise insertion of the positioning slots and the insertion frame, combined with the magnetic attraction of the magnetic plate, the initial positioning of each layer of the structure can be quickly achieved. The auxiliary latch teeth in the elastic latch assembly, under the combined action of the elastic potential energy of the second spring and the magnetic attraction of the magnetic block, form a wedge-shaped self-locking structure with the tooth grooves, significantly improving the shear resistance between layers, further enhancing the stability of the stacking, and effectively preventing relative displacement between layers. At the same time, the reinforcement mechanism is connected to the slots by the rotating frame and the telescopic frame, and combined with the fixation of the reinforcement pin rod, it reinforces the entire stacking structure from both sides, greatly improving the overall anti-toppling ability. The displacement of the entire structure under dynamic load is controlled within the safety threshold. Even if it is subjected to external force collision or vibration, the stability of the stacking structure can be guaranteed, reducing the risk of safety accidents. It also realizes the function of rapid assembly and disassembly. Compared with the prior art that uses a direct fixing method, the above design eliminates the need to remove too many fixing components when repairing or replacing a single module, greatly shortening operation and maintenance time and improving work efficiency.

[0016] 2. In terms of shock absorption and buffering performance, the present invention adopts a multi-stage energy absorption mechanism. The honeycomb metal buffer layer utilizes the plastic deformation characteristics of the cellular structure to achieve primary buffering. The PCM phase change material filled inside also has a thermal buffering function through solid-liquid phase change latent heat exchange, which can not only buffer impact force but also play a regulating role when the temperature changes. In addition, the airbag-type buffer assembly achieves air pressure regulation through an airbag tube driven by a micro air pump, and cooperates with the first buffer pad at the bottom of the movable seat to form a secondary elastic buffer, which can dynamically adjust the stiffness coefficient according to the load. In addition, when the stack is misaligned or subjected to lateral impact, the airbag automatically inflates to fill the gap and provide dynamic support. Therefore, the independent vertical and lateral buffering design can simultaneously cope with multi-directional impacts, and the seismic performance is significantly improved compared to the traditional single spring structure. At the same time, the damping shock absorber in the positioning assembly and the second buffer pad constitute a viscoelastic damping system, which effectively attenuates low-frequency vibration energy. Through the synergistic effect of the three-stage buffering, the vibration acceleration peak is reduced to below the tolerance threshold of the battery module, significantly extending the cycle life.

[0017] 3. In terms of thermal management efficiency, the present invention is embodied in efficient airflow organization. When the reinforcement mechanism is working, the heat dissipation component is guaranteed to be unobstructed. At this time, the heat dissipation fan forms a distributed air supply system through the air duct and the hose. The heat dissipation fan, air duct and hose are used to transport cold air to the rotating frame and the telescopic frame, and then enter the battery box body and the inverter through the ventilation slot. At the same time, the hose and exhaust duct on the other side discharge the hot air to form a good air circulation. The setting of the wind distribution inclined plate can make the cold air more evenly distributed, improve the heat dissipation efficiency, and effectively dissipate heat to avoid affecting the performance of the battery due to excessive temperature, and even causing safety problems, thereby ensuring the stable operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a stably stackable battery pack box of the present invention; Figure 2 A three-dimensional cross-sectional view of a stably stackable battery pack box according to the present invention; Figure 3 This is a schematic diagram of the reinforcement structure of a stably stackable battery pack box of the present invention; Figure 4 This is a schematic diagram of the cooling fan and hose structure of a stably stackable battery pack box of the present invention; Figure 5 This is a schematic diagram of the structure of the first spring and the wind distribution inclined plate of a stably stackable battery pack box of the present invention; Figure 6 This is a schematic diagram of the ventilation slots and quick-connect connector structure of a stably stackable battery pack box of the present invention; Figure 7This is a schematic diagram of the positioning groove and positioning slot structure of a stably stackable battery pack box of the present invention; Figure 8 A cross-sectional view of a battery pack body of a stably stackable battery pack box according to the present invention; Figure 9 This is a schematic diagram of the opening and PCM phase change material structure of a stably stackable battery pack box of the present invention; Figure 10 This is a schematic diagram of a reinforcement hole structure of a stably stackable battery pack box according to the present invention; Figure 11 This is a schematic structural diagram of an airbag-type buffer assembly of a stably stackable battery pack box according to the present invention; Figure 12 This is a front cross-sectional view of a fixing frame of a stably stackable battery pack box according to the present invention; Figure 13 This is a schematic structural diagram of a positioning assembly for a stably stackable battery pack box according to the present invention; Figure 14 This is a schematic structural diagram of an elastic latch assembly of a stably stackable battery pack box according to the present invention.

[0019] Description of the numbers in the figure: 1. Base; 2. Heat dissipation assembly; 21. Reinforcement seat; 22. Exhaust duct; 23. Hose; 24. Cooling fan; 25. Air duct; 26. Pipe hole; 27. Air distribution inclined plate; 28. Ventilation slot; 3. Battery box body; 4. Buffer layer; 5. Inverter; 6. Reinforcement mechanism; 61. Placement slot; 62. Rotating frame; 63. Telescopic frame; 64. Reinforcement pin; 65. Limiting slot; 66. Limiting block; 67. Handle frame; 68. First spring; 69. Card slot; 610. Reinforcement hole; 7. Brake universal wheel; 8. Airbag cushioning assembly; 81. Fixed frame; 82. Airbag tube; 83. Movable Seat; 84. First buffer pad; 85. Through port; 86. Air pipe; 87. Micro air pump; 88. Circular cavity; 89. Movable hoop; 9. Positioning assembly; 91. Insert frame; 92. Second buffer pad; 93. Magnetic plate; 94. Positioning slot; 95. Damping shock absorber; 96. L-shaped limit plate; 97. Anti-slip slot; 10. Elastic latch assembly; 101. Positioning slot; 102. Tooth groove; 103. Positioning socket; 104. Connecting slot; 105. Auxiliary latch; 106. Second spring; 107. Third buffer pad; 108. Magnetic block; 11. Quick-connect connector; 12. PCM phase change material. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0021] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0023] See also Figures 1-14 The present invention provides a stably stackable battery pack, comprising: Base 1, multiple battery box bodies 3 are stacked on top of the base 1, and an inverter 5 is stacked on top of the battery box body 3. Quick-plug connectors 11 are provided between the bottom of the inverter 5 and the top of the battery box body 3, as well as between two adjacent battery box bodies 3; A buffer layer 4 is installed around the bottom of the battery box body 3 and the bottom of the inverter 5. The buffer layer 4 is a honeycomb metal layer, and the honeycomb pores of the buffer layer 4 are filled with PCM phase change material 12. The honeycomb metal buffer layer uses the plastic deformation characteristics of the cellular structure to achieve primary buffering. The PCM phase change material 12 filled inside has a thermal buffering function through solid-liquid phase change latent heat exchange, which can not only buffer impact force but also play a regulating role when the temperature changes. The bottom of the battery box body 3 is provided with an airbag buffer component 8, and the airbag buffer component 8 includes a fixing frame 81 installed at the corners of the inner wall around the battery box body 3, a circular cavity 88 is opened inside the fixing frame 81, and an airbag tube 82 is installed on the top of the inner wall of the circular cavity 88, an inflation component is provided between the airbag tubes 82, and the inflation component includes an air pipe 86 fixedly connected between the two ends of the four airbag tubes 82, and a micro air pump 87 is installed on one side of the bottom inner wall of the battery box body 3, the exhaust end of the micro air pump 87 is fixedly connected to the air pipe 86, the bottom of the circular cavity 88 is provided with a through hole that passes through the fixing frame 81 and the bottom of the battery box body 3, and the bottom of the airbag tube 82 is installed with an air pump. The movable hoop 89 has a movable seat 83 fixed to its bottom that passes through the through hole. The top of the buffer layer 4 is provided with through holes 85 for inserting the bottom of the movable seat 83. The bottom of the movable seat 83 is installed with a first buffer pad 84. The airbag buffer assembly 8 realizes air pressure regulation through the airbag tube 82 driven by the micro air pump 87, and cooperates with the first buffer pad 84 at the bottom of the movable seat 83 to form a secondary elastic buffer, which can dynamically adjust the stiffness coefficient according to the load. Moreover, when the stack is misaligned or subjected to lateral impact, the airbag automatically inflates to fill the gap and provide dynamic support. Therefore, the independent vertical and lateral buffer design can cope with multi-directional impacts at the same time, and the seismic performance is significantly improved compared with the traditional single spring structure. Reinforcement mechanisms 6 are provided on both sides of the top of the base 1 and between the battery box body 3 and both sides of the inverter 5; A heat dissipation component 2 is provided on the base 1 and the reinforcement mechanism 6; A positioning assembly 9 and an elastic latch assembly 10 are provided between the bottom of the inverter 5 and the top of the battery box body 3, between two adjacent battery box bodies 3, and between the bottom of the battery box body 3 and the top of the base 1. The positioning assembly 9 includes a positioning groove 94 opened in the middle of the bottom of the battery box body 3 and the middle of the bottom of the inverter 5, and an insertion frame 91 inserted into the positioning groove 94 is installed in the middle of the top of the base 1 and the middle of the top of the battery box body 3. A plurality of damping shock absorbers 95 are installed on the bottom inner wall of the insertion frame 91, and the top of the damping shock absorber 95 is installed with a magnetic plate 93 inserted into the positioning groove 94. The top of the magnetic plate 93 Magnetic adsorption with the top of the positioning groove 94, anti-slip grooves 97 are provided on the inner walls of both ends of the insertion frame 91, and L-shaped limit plates 96 are fixed on both sides of the bottom of the magnetic plate 93, and the L-shaped ends of the L-shaped limit plates 96 are inserted into the anti-slip grooves 97. The same second buffer pad 92 is fixed around the bottom of the magnetic plate 93, and the second buffer pad 92 fits around the top of the insertion frame 91. The elastic latch assembly 10 includes positioning slots 101 at the four corners of the bottom of the battery box body 3 and the four corners of the bottom of the inverter 5, and the top four corners of the battery box body 3 and the top four corners of the base 1 are fixed with positioning sockets 103 inserted into the positioning slots 101. The positioning sockets 103 The locating socket 103 is provided with a connecting groove 104 on all sides, and the inner wall of the connecting groove 104 is plugged with an auxiliary tooth 105, one end of the auxiliary tooth 105 and one end of the connecting groove 104 are installed with a second spring 106, and the inner wall of the positioning slot 101 is provided with a tooth groove 102 on all sides, and a magnetic block 108 is installed at one end of the inner wall of the tooth groove 102. The auxiliary tooth 105 is inserted into the tooth groove 102 by the adsorption effect of the magnetic block 108. The cross-section of the tooth groove 102 is designed to be triangular. The top of the positioning socket 103 is provided with a third buffer pad 107 that fits the inner wall of the top of the positioning slot 101. The third buffer pad 107, the second buffer pad 92 and the first buffer pad The punch pads 84 are all designed as thermoplastic elastomers. Through the precise insertion of the positioning grooves 94 and the insertion frames 91, and the magnetic adsorption of the magnetic plates 93, the preliminary positioning of each layer of the structure can be quickly achieved. The auxiliary teeth 105 in the elastic latch assembly 10 form a wedge-shaped self-locking structure with the tooth grooves 102 under the combined action of the elastic potential energy of the second spring 106 and the magnetic attraction of the magnetic block 108, which significantly improves the shear resistance between layers, further enhances the stability of the stacking, and effectively prevents relative displacement between layers. At the same time, it also eliminates the need to remove too many fixed components when inspecting or replacing a single module, greatly shortening the operation and maintenance time and improving work efficiency.

[0024] In the present invention, the reinforcement mechanism 6 includes placement slots 61 provided on both sides of the top of the base 1, and the inner walls of the placement slots 61 are hinged with a rotating frame 62, the inner walls of the rotating frame 62 are plugged with a telescopic frame 63, and the cross-sections of the telescopic frame 63 and the rotating frame 62 are both designed to be U-shaped, and the inner walls of both sides of the rotating frame 62 are provided with limiting slots 65, and the bottoms of the outer walls of both sides of the telescopic frame 63 are fixed with limiting blocks 66 plugged into the top of the inner walls of the limiting slots 65, and both ends of the battery box body 3 and the inverter 5 are provided with card slots 69, and the rotating frame 62 and the telescopic frame 63 are both carded in the card slots 69, and the inner wall tops of the card slots 69 at both ends of the inverter 5 are provided with reinforcement holes 610, and the two telescopic frames 6 3 is provided with a connecting hole on the top of one side, and a reinforcing pin 64 is inserted into the inner wall of the connecting hole. One end of the reinforcing pin 64 is inserted into the connecting hole, and a fixing ring is fixed to one side of the outer wall of the reinforcing pin 64, and a first spring 68 is installed between one side of the fixing ring and the inner wall of the telescopic frame 63. The other end of the reinforcing pin 64 is fixed to a handle frame 67, and the rotating frame 62 and the telescopic frame 63 in the reinforcement mechanism 6 are clamped in the clamping groove 69. Combined with the fixation of the reinforcing pin 64, the entire stacking structure is reinforced from both sides, which greatly improves the overall anti-tilting ability and controls the displacement of the overall structure under dynamic load within the safety threshold. Even if it is subjected to external collision or vibration, the stability of the stacking structure can be guaranteed.

[0025] In the present invention, the heat dissipation assembly 2 includes a hose 23 installed at the bottom of one end of the rotating frame 62, and the bottom inner walls of the two placement grooves 61 are provided with pipe holes 26 for the hose 23 to pass through, one end of one of the hoses 23 is fixed with an exhaust pipe 22, and the top of the exhaust pipe 22 and the bottom of the base 1 are installed with a reinforcement seat 21, a cooling fan 24 is installed on one side of the bottom of the base 1, and the exhaust end of the cooling fan 24 and one end of the other hose 23 are installed with an air guide duct 25, both sides of the battery box body 3 and both sides of the inverter 5 are provided with ventilation slots 28 connected to the card slot 69, and the rotating frame 62 and the telescopic frame 63 are wrapped around the outside of the ventilation slot 28, and the inner wall of the telescopic frame 63 near the cooling fan 24 is installed with the like. The air distribution inclined plates 27 are distributed at a certain distance, and the two reinforcement mechanisms 6 are symmetrically distributed with respect to the center of the base 1, and brake universal wheels 7 are installed at the four corners of the bottom of the base 1. When the reinforcement mechanism 6 is working, the heat dissipation component 2 is guaranteed to be unobstructed, and the cooling fan 24, the air duct 25 and the hose 23 are used to transport the cold air to the rotating frame 62 and the telescopic frame 63, and then enter the battery box body 3 and the inverter 5 through the ventilation slot 28. At the same time, the hose 23 and the exhaust pipe 22 on the other side discharge the hot air to form a good air circulation. The cold air can be more evenly distributed through the air distribution inclined plates 27. The effective heat dissipation avoids the battery performance being affected by excessive temperature, and even causes safety problems, thereby ensuring the stable operation of the entire system.

[0026] In summary, the working principle of the present invention is as follows: when stacking, multiple battery box bodies 3 and an inverter 5 are stacked on top of the base 1 in sequence, and quick electrical connection is achieved between adjacent components through quick-plug connectors 11; The positioning assembly 9 is used to ensure accurate stacking, so that the insertion frame 91 on the top of the base 1 and the top of the battery box body 3 is inserted into the positioning groove 94 at the bottom of the upper battery box body 3 and the inverter 5. The magnetic plate 93 in the insertion frame 91 is magnetically adsorbed to the top of the positioning groove 94. The damping shock absorber 95 and the second buffer pad 92 further enhance the positioning stability and buffer vibration. The L-shaped limit plate 96 is inserted into the anti-slip groove 97 to prevent the magnetic plate 93 from detaching. At the same time, the elastic latch assembly 10 assists in fixing, so that the positioning socket 103 on the top of the battery box body 3 and the base 1 is inserted into the upper positioning slot 101. The auxiliary tooth 105 in the connecting groove 104 is clamped into the tooth groove 102 under the action of the second spring 106 and the magnetic block 108, and the third buffer pad 107 is used to reduce contact impact; In terms of buffering, the buffer layer 4 at the bottom of the battery box body 3 and the inverter 5 is a honeycomb metal layer. The PCM phase change material 12 filled inside has both buffering and temperature control functions. The airbag buffer component 8 enhances the buffering effect. Inside the fixed frame 81 at the corner of the inner wall of the battery box body 3, the airbag tube 82 is connected to the micro air pump 87 through the air pipe 86. After inflation, the movable seat 83 drives the first buffer pad 84 to move downward and insert into the opening 85 of the buffer layer 4, cooperating with the buffer layer 4 to absorb the impact force generated by stacking and vibration; The reinforcement mechanism 6 improves overall stability. The rotating frames 62 on both sides of the top of the base 1 are rotated out of the placement slots 61. The telescopic frames 63 are extended and retracted along the rotating frames 62. The two are inserted into the slots 69 of the battery box body 3 and the inverter 5. The limiting blocks 66 are used to limit the positions in the limiting slots 65. Then, the reinforcement pins 64 of the top telescopic frames 63 are inserted into the reinforcement holes 610 of the inverter 5. The first springs 68 ensure that the pins are tightened. The handle frames 67 facilitate operation. The symmetrical reinforcement mechanisms 6 on both sides form a stable frame. Furthermore, the heat dissipation component 2 is used to ensure heat dissipation. The heat dissipation fan 24 at the bottom of the base 1 supplies air through the air duct 25 and the hose 23. Another hose 23 is connected to the exhaust duct 22 for exhaust. The rotating frame 62 and the telescopic frame 63 wrap around the ventilation slots 28 on both sides of the battery box body 3 and the inverter 5 to form an air flow channel. The wind distribution inclined plate 27 optimizes the air flow distribution to achieve efficient heat dissipation. Finally, the brake universal wheel 7 at the bottom of the base 1 facilitates overall movement and fixation, and the various components work together to ensure that the battery pack box is stably stacked, easy to assemble and disassemble, has reliable buffering, and efficient heat dissipation.

[0027] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A stably stackable battery pack, characterized in that: include: A base (1), wherein a plurality of battery box bodies (3) are stacked on the top of the base (1), and an inverter (5) is stacked on the top of the battery box body (3), and quick-connect connectors (11) are provided between the bottom of the inverter (5) and the top of the battery box body (3), as well as between two adjacent battery box bodies (3); Buffer layers (4) are installed around the bottom of the battery box body (3) and around the bottom of the inverter (5); The bottom of the battery box body (3) is provided with an airbag-type buffer assembly (8), and the airbag-type buffer assembly (8) includes a fixed frame (81) installed at the corners of the inner wall of the battery box body (3), a circular cavity (88) is opened inside the fixed frame (81), and an airbag tube (82) is installed on the top of the inner wall of the circular cavity (88), and an inflation assembly is arranged between the airbag tubes (82), the bottom of the circular cavity (88) is provided with a through-hole passing through the fixed frame (81) and the bottom of the battery box body (3), and a movable hoop (89) is installed at the bottom of the movable hoop (89), and a movable seat (83) passing through the through-hole is fixed to the bottom of the movable hoop (89), and the top of the buffer layer (4) is provided with a through-hole (85) for inserting the bottom of the movable seat (83), and the bottom of the movable seat (83) is provided with a first buffer pad (84); Reinforcement mechanisms (6) are provided between the top sides of the base (1) and the sides of the battery box body (3) and the inverter (5); A heat dissipation component (2) is provided on the base (1) and the reinforcement mechanism (6); Positioning components (9) and elastic latch components (10) are provided between the bottom of the inverter (5) and the top of the battery box body (3), between two adjacent battery box bodies (3), and between the bottom of the battery box body (3) and the top of the base (1).

2. A stably stackable battery pack according to claim 1, characterized in that: The inflation assembly includes an air pipe (86) fixedly connected between the two ends of the four air bag tubes (82), and a micro air pump (87) is installed on one side of the bottom inner wall of the battery box body (3), and the exhaust end of the micro air pump (87) is fixedly connected to the air pipe (86).

3. A stably stackable battery pack according to claim 2, characterized in that: The reinforcing mechanism (6) includes placement grooves (61) provided on both sides of the top of the base (1), and the inner walls of the placement grooves (61) are hinged with a rotating frame (62), the inner walls of the rotating frame (62) are plugged with a telescopic frame (63), and the cross-sections of the telescopic frame (63) and the rotating frame (62) are both designed to be U-shaped, the inner walls of both sides of the rotating frame (62) are provided with limiting grooves (65), and the bottoms of the outer walls of both sides of the telescopic frame (63) are fixed with limiting blocks (66) plugged into the tops of the inner walls of the limiting grooves (65), and both ends of the battery box body (3) and the inverter (5) are provided with card slots ( 69), and the rotating frame (62) and the telescopic frame (63) are both snapped into the slot (69), the top of the inner wall of the slot (69) at both ends of the inverter (5) is provided with a reinforcement hole (610), and the top of one side of the two telescopic frames (63) is provided with a connecting hole, the inner wall of the connecting hole is plugged with a reinforcement pin (64), one end of the reinforcement pin (64) is plugged into the connecting hole, a fixing ring is fixed to one side of the outer wall of the reinforcement pin (64), and a first spring (68) is installed between one side of the fixing ring and the inner wall of the telescopic frame (63), and the other end of the reinforcement pin (64) is fixed with a handle frame (67).

4. A stably stackable battery pack according to claim 3, characterized in that: The heat dissipation assembly (2) includes a hose (23) installed at the bottom of one end of the rotating frame (62), and the bottom inner walls of the two placement slots (61) are each provided with a pipe hole (26) for the hose (23) to pass through, an exhaust pipe (22) is fixed to one end of one of the hoses (23), and a reinforcement seat (21) is installed between the top of the exhaust pipe (22) and the bottom of the base (1), a heat dissipation fan (24) is installed on one side of the bottom of the base (1), and an air guide pipe (25) is installed between the exhaust end of the heat dissipation fan (24) and one end of the other hose (23), ventilation slots (28) connected to the card slot (69) are opened on both sides of the battery box body (3) and both sides of the inverter (5), and the rotating frame (62) and the telescopic frame (63) are wrapped around the outside of the ventilation slot (28).

5. A stably stackable battery pack according to claim 4, characterized in that: The inner wall of the telescopic frame (63) close to the heat dissipation fan (24) is equipped with wind distribution inclined plates (27) distributed at equal distances.

6. A stably stackable battery pack according to claim 5, characterized in that: The buffer layer (4) is a honeycomb metal layer, and the honeycomb pores of the buffer layer (4) are filled with PCM phase change material (12).

7. A stably stackable battery pack according to claim 6, characterized in that: The two reinforcement mechanisms (6) are symmetrically distributed around the center of the base (1), and brake universal wheels (7) are installed at the four corners of the bottom of the base (1).

8. The stably stackable battery pack according to claim 7, characterized in that: The positioning assembly (9) includes a positioning groove (94) provided at the middle of the bottom of the battery box body (3) and the middle of the bottom of the inverter (5), and an insert frame (91) inserted into the positioning groove (94) is installed at the middle of the top of the base (1) and the middle of the top of the battery box body (3).

9. The stably stackable battery pack according to claim 8, characterized in that: The bottom inner wall of the insert frame (91) is provided with a plurality of damping shock absorbers (95), and the top of the damping shock absorber (95) is provided with a magnetic plate (93) inserted into the positioning groove (94), the top of the magnetic plate (93) is magnetically adsorbed to the top of the positioning groove (94), the inner walls at both ends of the insert frame (91) are provided with anti-slip grooves (97), and L-shaped limiting plates (96) are fixed on both sides of the bottom of the magnetic plate (93), the L-shaped ends of the L-shaped limiting plates (96) are inserted into the anti-slip grooves (97), the bottom of the magnetic plate (93) is fixed with a second buffer pad (92) around the periphery, and the second buffer pad (92) is attached to the periphery of the top of the insert frame (91).

10. A stably stackable battery pack according to claim 9, characterized in that: The elastic latch assembly (10) includes positioning slots (101) at the bottom four corners of the battery box body (3) and the bottom four corners of the inverter (5), and the top four corners of the battery box body (3) and the top four corners of the base (1) are fixed with positioning sockets (103) inserted into the positioning slots (101), and the positioning sockets (103) are provided with connecting grooves (104) on all four sides, and the inner wall of the connecting groove (104) is plugged with auxiliary teeth (105), and one end of the auxiliary teeth (105) is connected to the connecting groove (1 04) is installed with a second spring (106), the inner walls around the positioning slot (101) are all provided with tooth grooves (102), and a magnetic block (108) is installed at one end of the inner wall of the tooth groove (102), the auxiliary tooth (105) is inserted into the tooth groove (102) by the adsorption effect of the magnetic block (108), the cross section of the tooth groove (102) is designed to be triangular, and the top of the positioning socket (103) is installed with a third buffer pad (107) that fits with the inner wall of the top of the positioning slot (101).

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