Portable stacked household energy storage power supply

Abstract

The utility model relates to the technical field of electric power energy storage, in particular to a portable stacked household energy storage power supply which comprises a battery module, a supporting assembly, a box body and a battery management system, the supporting assembly comprises a base, two universal wheels with brakes and two directional wheels, the two universal wheels with the brakes are oppositely arranged at the bottom of the base respectively, and the two directional wheels with the brakes are arranged on the box body. The two directional wheels are oppositely arranged at the bottom of the base, trapezoidal bosses are arranged at the top of the base and the tops of the box bodies, trapezoidal grooves are formed in the bottoms of the box bodies, the trapezoidal bosses correspond to the trapezoidal grooves, the multiple box bodies are sequentially stacked at the top of the base along the trapezoidal outlines, two battery modules are arranged in the box bodies, and the battery modules are arranged in the box bodies. The battery module is connected with the battery management system, and the battery management system detects the state of the battery cell. The problem that a traditional household energy storage power supply is not convenient to mount and dismount is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric power energy storage, especially relates to a portable stacked household energy storage power supply. BACKGROUND

[0002] Household energy storage refers to an energy storage system for households, which uses distributed photovoltaic devices to generate electricity and manages and stores the electricity to improve the efficiency of self-generation and self-use and reduce economic costs. With the rapid development of renewable energy and the gradual opening of the electricity market, household energy storage has shown a wide application prospect in ensuring the reliability and economy of electricity. Economic reasons and ensuring the reliability of electricity are the main reasons for users to choose household energy storage.

[0003] However, the barriers of the household energy storage industry mainly lie in product design and channel construction, and long-term competitiveness mainly lies in cost control. In terms of product design, how to realize the portability, stackability and efficient management of the energy storage system has become a problem to be solved.

[0004] Traditional household energy storage power supplies are often bulky and heavy, which not only makes installation and disassembly difficult, but also increases the difficulty of transportation and storage. Therefore, the development of a new type of portable stacked household energy storage power supply is particularly important. SUMMARY

[0005] The utility model aims at providing a portable stacked household energy storage power supply, which solves the problem of traditional household energy storage power supply that is not conducive to installation and disassembly.

[0006] To achieve the above-mentioned purpose, the utility model provides a portable stacked household energy storage power supply, which comprises a battery module, and further comprises a supporting assembly, a box body and a battery management system.

[0007] The supporting assembly comprises a base, two brake universal wheels and two directional wheels, the two brake universal wheels are respectively arranged at the bottom of the base, and the two directional wheels are respectively arranged at the bottom of the base, the top of the base and the top of the box body are provided with trapezoidal bosses, the bottom of the box body is provided with a trapezoidal groove, the trapezoidal boss corresponds to the trapezoidal groove, the number of the box body is multiple, and the multiple box bodies are stacked on the top of the base along the trapezoidal contour in sequence, two battery modules are arranged in the box body, the battery module is connected with the battery management system, and the battery management system detects the state of the battery cell.

[0008] The box comprises an upper box, a lower box, a connecting strip, a limiting plate and an electrical connecting plate, the trapezoidal boss is located at the top of the upper box, the trapezoidal groove is located at the bottom of the lower box, the limiting plate is welded with the lower box and is located at the side of the lower box, the upper box and the lower box are connected through screws, the side, away from the limiting plate, of the lower box is provided with a groove, the electrical connecting plate is connected with the lower box through bolts and is located at the groove, the electrical connecting plate is also connected with the battery management system, the connecting strip is detachably connected with the lower box and is located at the side of the lower box close to the electrical connecting plate and is fixed with the adjacent lower box through bolts.

[0009] The box further comprises a rear sealing plate, two handles and a fixing strip, the rear sealing plate is bolted with the lower box through the connecting strip and has an electrical installation gap between the rear sealing plate and the electrical connecting plate, the two handles are fixedly connected with the lower box and are located at the two sides of the lower box respectively, and the fixing strip is welded with the lower box and is located in the interior of the lower box and connects the battery module through bolts.

[0010] The battery module comprises a plurality of battery cells, end plates, plastic steel belts, CCS wire harnesses, temperature sensors and module covers, the plurality of battery cells are assembled in an array and are assembled with the end plates on both sides, the plastic steel belts bundle the plurality of battery cells and the end plates together, the CCS wire harnesses and the temperature sensors are arranged on the upper ends of the plurality of battery cells, the temperature sensors are connected to the battery management system through wire harnesses, the module covers are fixed to the end plates through nylon rivets, and the module covers have spaces with the CCS wire harnesses.

[0011] The portable stacked household energy storage power supply further comprises a display screen, the display screen is connected with the communication line of the battery management system and is located on the outer wall of the lower box.

[0012] The utility model discloses a portable stacked household energy storage power supply, the base is used for supporting, a plurality of the box utilizes trapezoidal boss and trapezoidal groove realizes the installation of embedded type, and the household energy storage power supply is stacked in the base along the trapezoidal profile in turn, effectively promotes the space utilization of household energy storage power supply, improves the convenience of installation and disassembly simultaneously, and the battery unit is not easy to fall, avoids causing unnecessary loss, the universal wheel with brake and the directional wheel facilitate the movement of the whole, and the carrying is convenient, the battery module is arranged in each the box, and the portable design can realize power supply at any time and anywhere, the battery module is equipped with the display screen and the battery management system separately, can monitor the state of each battery unit at any time, is favorable to replacement and maintenance, realizes the reliability and safety of electricity utilization, solves the problem that the traditional household energy storage power supply is not favorable to installation and disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced.

[0014] Figure 1 It is the overall structure schematic diagram of the portable stacked household energy storage power supply.

[0015] Figure 2 It is the structure schematic diagram of the supporting assembly.

[0016] Figure 3 It is the exploded view of the box.

[0017] Figure 4 It is the connection schematic diagram of the battery management system and the electrical connection plate.

[0018] Figure 5 It is the connection schematic diagram of the lower box and the fixing strip.

[0019] Figure 6 It is the structure schematic diagram of the battery module.

[0020] In the figure: 1-supporting assembly, 2-box, 3-battery module, 4-battery management system, 11-trapezoidal boss, 12-directional wheel with brake universal wheel, 13-base, 21-lower box, 22-upper box, 23-limiting plate, 24-trapezoidal groove, 25-electrical connection plate, 26-rear sealing plate, 27-connection strip, 28-handle, 29-fixing strip, 31-cell, 32-end plate, 33-plastic steel belt, 34-CCS wire harness, 35-temperature sensor, 36-module cover, 41-display screen, 100-portable stacked household energy storage power supply, 341-FPC, 342-aluminum row, 343-suction plastic support, 344-nickel sheet. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below, examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as limiting the present application.

[0022] The first embodiment of the present application is:

[0023] Please refer to Figures 1 to 6 , wherein, Figure 1 It is the overall structure schematic diagram of the portable stacked household energy storage power supply 100. Figure 2 It is the structure schematic diagram of the supporting assembly 1. Figure 3 It is the exploded view of the box 2.Figure 4 Figure 3 is a schematic view of the connection between the battery management system 4 and the electrical connection plate 25 of the utility model. Figure 5 Figure 4 is a schematic view of the connection between the lower box body 21 and the fixing strip 29 of the utility model. Figure 6 Figure 5 is a schematic view of the structure of the battery module 3 of the utility model.

[0024] The utility model provides a portable stacked household energy storage power supply 100: including battery module 3, support assembly 1, box body 2, battery management system 4 and display screen 41, support assembly 1 includes base 14, two universal wheels with brake 12 and two directional wheels 13, box body 2 includes upper box body 22, lower box body 21, connecting strip 27, limiting plate 23, electrical connection plate 25, rear sealing plate 26, two handles 28 and fixing strip 29, battery module 3 includes multiple electric core 31, end plate 32, plastic steel belt 33, CCS wire harness 34, temperature sensor 35 and module cover 36.

[0025] For this specific embodiment, two universal wheels with brake 12 are respectively arranged on the bottom of base 14, and two directional wheels 13 are respectively arranged on the bottom of base 14, the top of base 14 and the top of box body 2 are both provided with trapezoidal bosses 11, the bottom of box body 2 is provided with trapezoidal grooves 24, the trapezoidal bosses 11 correspond to the trapezoidal grooves 24, the number of box bodies 2 is multiple, multiple box bodies 2 are stacked in turn along the trapezoidal contour on the top of base 14, two battery modules 3 are arranged in box body 2, battery module 3 is connected with battery management system 4, and battery management system 4 detects the state of electric core 31.

[0026] Base 14 is provided with trapezoidal boss 11 for the basic positioning of base 14 and box body 2. Meanwhile, base 14 is provided with reinforcing ribs, which are connected by welding to enhance the load-bearing capacity of base 14. The reinforcing ribs are provided with mounting holes for mounting the universal wheels with brake and directional wheels 13, which is convenient for carrying and installation. Multiple box bodies 2 can be stacked in turn on base 1, and at most six box bodies 2 can be stacked.

[0027] The trapezoidal boss 11 is located at the top of the upper box 22, the trapezoidal groove 24 is located at the bottom of the lower box 21, the limiting plate 23 is welded with the lower box 21 and located at the side of the lower box 21, the upper box 22 and the lower box 21 are connected by screws, the lower box 21 away from the limiting plate 23 side has a groove, the electrical connection plate 25 is connected with the lower box 21 by bolts and located at the groove, the electrical connection plate 25 is also connected with the battery management system 4, the connecting strip 27 is detachably connected with the lower box 21 and located at the side of the lower box 21 close to the electrical connection plate 25, and the adjacent lower box 21 is fixed by bolts.

[0028] The limiting plate 23 is connected with the lower box 21 by welding, the limiting plate 23 is provided with mounting hole, the lower box 21 and the upper box 22 are connected by taper countersunk screw. The lower box 21 is provided with the trapezoidal groove 24, the base 14 and the upper box 22 are provided with the trapezoidal boss 11, so that the base 14 and the box 2 and the box 2 can be stacked together along the trapezoidal contour, the trapezoidal boss 11 and the trapezoidal groove 24 can quickly position during installation. The back of the lower box 21 is provided with a groove for mounting the electrical connection plate 25, which is fixed to the lower box 21 by bolt connection. The top and bottom of the electrical connection plate 25 are provided with blades, the bottom blade is placed on the lower box 21, which plays a supporting role, and the top blade is provided with mounting hole and fixedly connected with the upper box 22 by taper countersunk screw. The electrical connection plate 25 connects the battery management system 4 and is provided with an interface for connecting external devices, such as positive and negative terminal interface, communication interface, network interface, etc. When the base 14 and the box 2 and the box 2 are stacked, they are fixed by bolts through the connecting strip 27 to prevent the equipment from falling down.

[0029] Secondly, the rear sealing plate 26 is bolted to the lower box 21 through the connecting strip 27 and has an electrical installation gap between the rear sealing plate 26 and the electrical connection plate 25, two handles 28 are fixedly connected with the lower box 21 respectively and located at both sides of the lower box 21, the fixed strip 29 is welded with the lower box 21 and located inside the lower box 21, and the battery module 3 is connected by bolts.

[0030] The rear sealing plate 26 is provided with a large number of heat dissipation holes to improve the heat dissipation efficiency of the portable stacked household energy storage power supply 100 at high temperature. The rear sealing plate 26 is bolted and fixed to the box body 2 through the connecting strip 27, and the rear sealing plate 26 is left with a certain electrical installation gap with the electrical connection plate 25. The handle 28 is arranged on both sides of the lower box body 21 to facilitate installation and transportation. The fixing strip 29 is connected to the lower box body 21 by welding, and the fixing strip 29 is provided with mounting holes for bolted connection of the battery module 3.

[0031] At the same time, a plurality of the battery cells 31 are assembled in an array, and the end plates 32 are assembled on both sides. The plastic steel belt 33 bundles the plurality of the battery cells 31 and the end plates 32 together. The CCS wire harness 34 and the temperature sensor 35 are arranged on the upper end of the plurality of the battery cells 31. The temperature sensor 35 is connected to the battery management system 4 through a wire harness. The module cover 36 is fixed to the end plate 32 by nylon rivets, and the module cover 36 has space with the CCS wire harness 34.

[0032] A plurality of the battery cells 31 are assembled with the end plates 32 on both sides. The plastic steel belt 33 bundles the battery cells 31 and the end plates 32 together. The CCS wire harness 34 and the temperature sensor 35 are arranged on the upper end of the battery cells 31. The end plate 32 is provided with mounting holes and is connected to the fixing strip 29 by long bolts. The CCS wire harness 34 includes an FPC 341, an aluminum row 342, a plastic suction bracket 343, and a nickel sheet 344. The temperature sensor 35 is connected to the battery management system 4 through a wire harness. The module cover 36 is fixed to the end plate 32 by nylon rivets, and the module cover 36 has a certain space with the CCS wire harness 34 to improve the heat dissipation efficiency of the battery cells 31 at high temperature.

[0033] In addition, the display screen 41 is connected to the communication line of the battery management system 4 and is located on the outer wall of the lower box body 21.

[0034] The battery management system 4 is fixed to the electrical connection plate 25. The battery management system 4 detects the current, voltage, temperature, and SOC state of the battery cells 31, has device starting, warning, and stopping functions, is connected to the display screen 41 through a communication line, and is reflected on the display screen 41.

[0035] The portable stacked household energy storage power supply 100 of the embodiment is used, a plurality of box bodies 2 are embeddedly installed by using the trapezoidal boss 11 and the trapezoidal groove 24, and are stacked along the trapezoidal contour in sequence on the base 14, the space utilization of the household energy storage power supply is effectively improved, the convenience of installation and disassembly is improved, the battery unit is not easy to fall, unnecessary loss is avoided, the overall movement is facilitated by the brake universal wheel 12 and the directional wheel 13, and the carrying is facilitated, the battery module 3 is arranged in each box body 2, portable design can realize power supply at any time and anywhere, the battery module 3 is provided with a separate display screen 41 and a battery management system 4, the state of each battery unit can be monitored at any time, replacement and maintenance are beneficial, the reliability and safety of electricity utilization are realized, and the problem that the traditional household energy storage power supply is not conducive to installation and disassembly is solved.

[0036] The above only discloses one or more preferred embodiments of the application, and cannot limit the scope of the right of the application. Those skilled in the art can understand that the implementation of all or part of the above-mentioned embodiments is equivalent to the change of the claims of the application, which still belongs to the scope covered by the application.

Claims

1. A portable stacked household energy storage power supply, comprising a battery module, characterized in that, It also includes support components, housing, and battery management system; The support assembly includes a base, two omnidirectional casters with brakes, and two directional casters. The two omnidirectional casters with brakes are respectively disposed opposite each other at the bottom of the base, and the two directional casters are respectively disposed opposite each other at the bottom of the base. The top of the base and the top of the housing both have trapezoidal protrusions, and the bottom of the housing has trapezoidal grooves. The trapezoidal protrusions correspond to the trapezoidal grooves. There are multiple housings, and the multiple housings are stacked sequentially along the trapezoidal outline on the top of the base. Two battery modules are disposed inside the housings. The battery modules are connected to the battery management system, and the battery management system detects the cell status.

2. The portable stacked household energy storage power supply as described in claim 1, characterized in that, The housing includes an upper housing, a lower housing, a connecting strip, a limiting plate, and an electrical connection plate. The trapezoidal boss is located at the top of the upper housing, and the trapezoidal groove is located at the bottom of the lower housing. The limiting plate is welded to the lower housing and is located on the side of the lower housing. The upper housing and the lower housing are connected by screws. The lower housing has a groove on the side away from the limiting plate. The electrical connection plate is bolted to the lower housing and is located at the groove. The electrical connection plate is also connected to the battery management system. The connecting strip is detachably connected to the lower housing and is located on the side of the lower housing near the electrical connection plate, and is fixed to the adjacent lower housing by bolts.

3. The portable stacked household energy storage power supply as described in claim 2, characterized in that, The housing also includes a rear cover plate, two handles, and a fixing strip. The rear cover plate is bolted to the lower housing via the connecting strip and has an electrical installation gap with the electrical connection plate. The two handles are fixedly connected to the lower housing and are located on both sides of the lower housing. The fixing strip is welded to the lower housing and is located inside the lower housing, and is bolted to the battery module.

4. The portable stacked household energy storage power supply as described in claim 1, characterized in that, The battery module includes multiple battery cells, end plates, plastic steel straps, CCS wiring harnesses, temperature sensors, and a module cover. The multiple battery cells are assembled in an array, and the end plates are assembled on both sides. The plastic steel straps bind the multiple battery cells together with the end plates. The CCS wiring harness and the temperature sensor are disposed on the upper end of the multiple battery cells. The temperature sensor is connected to the battery management system through the wiring harness. The module cover is fixed to the end plates by nylon riveting, and there is a space between the module cover and the CCS wiring harness.

5. The portable stacked household energy storage power supply as described in claim 2, characterized in that, The portable stacked household energy storage power supply also includes a display screen, which is connected to the communication line of the battery management system and is located on the outer wall of the lower housing.

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