Background
With the large-scale application and development of photovoltaic power generation systems and battery energy storage systems, household energy storage systems are also becoming popular and mainly comprise an energy storage battery pack and an inverter. At present, the energy storage battery and the photovoltaic inverter are designed in a split mode, and the inverter is connected with the energy storage battery through a power line and a signal line. The inverter and the energy storage battery are required to be assembled separately, the efficiency of the whole assembly process is low, the integral effect is poor, and the appearance is not attractive. In order to protect wires and attractiveness, customers usually need to arrange a wire slot for a power line between the photovoltaic inverter and the energy storage battery independently, so that the requirements on the production process of products are high, and the production cost is increased.
At present, the energy storage battery and the photovoltaic inverter are designed in a split type, the inverter and the energy storage battery are required to be assembled separately, wires required for connection are long, the installation complexity is high, the defect of unattractive appearance is generated, the wires are exposed outside the equipment, safety risks exist, and the attractiveness is reduced.
The utility model patent with the bulletin number of CN 209170269U discloses a photovoltaic energy storage all-in-one machine in the 7 month of 2019, which comprises a box body, wherein one side wall of the box body is provided with a photovoltaic plate, the top end of the photovoltaic plate is hinged with the box body through a hinge, a cavity is formed in the box body, a storage battery is fixed in the cavity, a socket is inlaid on the outer side wall of the box body, the photovoltaic plate and the socket are connected with the storage battery through wires, a fixed block is arranged on the inner side of the lower end of the photovoltaic plate, a slot is formed in one end, close to the box body, of the fixed block, a groove is formed in one side wall, close to the photovoltaic plate, of the box body, a supporting rod is hinged in the groove, a through hole is formed in the supporting rod, and the fixed block is clamped in the through hole. This photovoltaic energy storage all-in-one, the installation is inconvenient enough between the subassembly, assembly efficiency is low.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the photovoltaic household energy storage integrated machine structure which is attractive in structure, high in safety, small in occupied space and convenient to install.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
this photovoltaic is energy storage all-in-one structure for family, the on-line screen storage device comprises a base, be equipped with energy storage battery package on the base, install the system block terminal on the energy storage battery package, be equipped with photovoltaic energy storage dc-to-ac converter on the system block terminal, the system block terminal can be dismantled with the energy storage battery package and be connected, the energy storage battery package can be dismantled with the base and be connected.
The energy storage battery pack is characterized in that a first locating pin is arranged at the upper end of the base, a second locating pin is arranged at the upper end of the energy storage battery pack, and locating holes matched with the first locating pin and the second locating pin are formed in the bottom end of the energy storage battery pack.
The inside bottom of system block terminal is equipped with set screw, system block terminal passes through set screw and installs on the energy storage battery package.
The photovoltaic energy storage inverter is characterized in that a back frame is arranged at the rear end of the photovoltaic energy storage inverter, a fixed support is arranged at the rear end of the system distribution box, an installation locating plate is connected between the back frame and the fixed support, and expansion bolts are arranged on the back frame and the fixed support.
The energy storage battery package one end swing joint has the side door, energy storage battery package tip is equipped with the wiring chamber, the side door covers the wiring chamber.
The positive and negative power lines are arranged in the wiring cavity, wiring terminals are arranged at the end part of the wiring cavity, and the positive and negative power lines are connected with the wiring terminals along the wiring cavity.
The energy storage battery packs are stacked.
The system distribution box is movably connected with a box cover, and a control switch box is arranged in the system distribution box.
The lengths and the widths of the photovoltaic energy storage inverter, the system distribution box, the energy storage battery pack and the base are consistent.
One end of the system distribution box is provided with a lock catch, and the box cover is provided with a hook matched with the lock catch.
The utility model has the technical effects that: the structure of the photovoltaic household energy storage integrated machine solves the problem that most of photovoltaic energy storage inverters and energy storage battery packs are installed separately to cause wire leakage, and improves structural attractiveness and safety; the positioning between each spare part is convenient, the installation is quick, and overall structure integral type design occupation space is little, and no redundant wire material leaks outward between each subassembly, guarantees the reliability of electrical connection.
Detailed Description
The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid those skilled in the art in a more complete, accurate and thorough understanding of the inventive concepts and aspects of the utility model, and to facilitate their practice.
As shown in fig. 1-6, the photovoltaic household energy storage integrated machine structure comprises a base 4, wherein an energy storage battery pack 3 is arranged on the base 4, a system distribution box 2 is arranged on the energy storage battery pack 3, a photovoltaic energy storage inverter 1 is arranged on the system distribution box 2, the system distribution box 2 is detachably connected with the energy storage battery pack 3, and the energy storage battery pack 3 is detachably connected with the base 4.
The base 4 is used for installing and supporting overall structure, and base 4 still is used for fixing a position installation to energy storage battery package 3, and system block terminal 2 is equipped with control switch and carries out on-off control to whole device, and photovoltaic energy storage dc-to-ac converter 1 connects BMS communication line and monitors and adjust the system and to electric power.
As shown in fig. 4-1 to 6, a first positioning pin 17 is arranged at the upper end of the base 4, a second positioning pin 19 is arranged at the upper end of the energy storage battery pack 3, and a positioning hole 18 matched with the first positioning pin 17 and the second positioning pin 19 is arranged at the bottom end of the energy storage battery pack 3. The first locating pin 17 and the second locating pin 19 are matched with the locating hole 18, and through the matching of the locating pin and the locating hole 18, the energy storage battery pack 3 can be accurately located when being stacked, the installation stability is improved, and the locating pin and the locating hole 18 are arranged in pairs, so that the stability is further improved.
As shown in fig. 5, a fixing screw 14 is provided at the bottom end inside the system distribution box 2, and the system distribution box 2 is mounted on the energy storage battery pack 3 through the fixing screw 14. The system distribution box 2 is arranged at the upper end of the energy storage battery pack 3 through the fixing screws 14, and the fixing screws 14 are arranged in pairs, so that the stability of installation can be improved.
As shown in fig. 3-1 and 3-2, a back frame 13 is arranged at the rear end of the photovoltaic energy storage inverter 1, a fixed bracket 12 is arranged at the rear end of the system distribution box 2, a mounting and positioning plate 16 is connected between the back frame 13 and the fixed bracket 12, and expansion bolts 15 are arranged on the back frame 13 and the fixed bracket 12. The back frame 13 at the rear end of the photovoltaic energy storage inverter 1 and the fixed support 12 at the rear end of the system distribution box 2 are used for installing expansion bolts 15, a locating plate 16 is connected between the back frame 13 and the fixed support 12, locating operation can be facilitated, three expansion bolts 15 are arranged on the back frame 13, two expansion bolts 15 are arranged on the fixed support 12, and then the photovoltaic energy storage inverter 1 and the system distribution box 2 are fixed on the back frame 13 and the fixed support 12 through a plurality of expansion bolts 15.
One end of the energy storage battery pack 3 is movably connected with a side door 8, a wiring cavity 9 is formed in the end portion of the energy storage battery pack 3, and the side door 8 covers the wiring cavity 9. The wiring chamber 9 is used for guiding the connecting line of BMS communication line and positive negative pole power line 6, and the side door 8 protects part and wire rod in the wiring chamber 9, guarantees that part and wire rod set up inside equipment, but moreover through setting up side door 8 of switching, has guaranteed that the maintenance in later stage is more convenient.
As shown in fig. 4-1, the positive and negative power lines 6 are arranged in the wiring cavity 9, the end part of the wiring cavity 9 is provided with a wiring terminal 20, and the positive and negative power lines 6 are connected with the wiring terminal 20 along the wiring cavity 9. The inside BMS communication line that still is equipped with of wiring chamber 9, BMS communication line and positive negative pole power line 6 all set up along wiring chamber 9, and positive negative pole power line 6 is connected binding post 20 along wiring chamber 9, and BMS communication line is connected to photovoltaic energy storage dc-to-ac converter 1 on, leads the circuit of BMS communication line and positive negative pole power line 6 through wiring chamber 9, has effectively avoided the wire rod to expose outside risk, ensures that there is not redundant wire rod leak outward between each subassembly, guarantees electrical connection's reliability.
As shown in fig. 1, the energy storage battery packs 3 are stacked. When stacking the energy storage battery packs 3, the number of the stacks can be determined according to the use requirement, only one energy storage battery pack 3 can be stacked, and two or more energy storage battery packs 3 can be stacked, and the process of stacking the energy storage battery packs 3 needs to ensure that each energy storage battery pack 3 is stably installed.
As shown in fig. 5, the system distribution box 2 is movably connected with a box cover 7, and a control switch box 5 is arranged in the system distribution box 2. The box cover 7 is hinged with the distribution box, so that the box cover 7 can be conveniently opened and closed, and wires are conveniently installed and shielded.
As shown in fig. 1, the lengths and widths of the photovoltaic energy storage inverter 1, the system distribution box 2, the energy storage battery pack 3 and the base 4 are identical. The photovoltaic energy storage inverter 1, the system distribution box 2, the energy storage battery pack 3 and the base 4 are consistent in cross-sectional area, small in occupied space, attractive in overall structure, free of redundant wires exposed outside equipment, attractive in appearance and low in safety risk.
As shown in fig. 5, one end of the system distribution box 2 is provided with a lock catch 10, and the box cover 7 is provided with a hook 11 matched with the lock catch 10. Through the cooperation of hasp 10 and couple 11, can be convenient for with the opening and closing of case lid 7, guaranteed that case lid 7 opens easy and simple to handle, still guaranteed simultaneously that the stability when case lid 7 is closed is high.
The BMS communication line is connected with the battery management system and has the functions of monitoring the battery pack in real time and supplying information such as the remaining electric quantity, the battery condition, the current and the like; the battery pack is controlled in the charging and discharging processes, the battery is maintained to a certain extent, the safety is ensured, the condition of the battery is monitored, and the service life of the battery pack is prolonged.
As shown in fig. 1-6, in the structure of the photovoltaic household energy storage integrated machine, two positive and negative power lines 6 are electrically connected between low-voltage energy storage lithium battery packs and two BMS communication lines are in communication connection, the energy storage lithium battery packs are positioned and combined through second positioning pins 19, a system distribution box 2 is stacked on the low-voltage lithium battery packs, the low-voltage lithium battery pack power lines and the communication lines are connected to the system distribution box 2, and the BMS communication lines are directly connected to the photovoltaic energy storage inverter 1.
The battery is connected with the photovoltaic energy storage inverter 1 through the system distribution box 2, the photovoltaic inverters are electrically connected through male and female connectors, and the energy storage battery pack 3 and the photovoltaic inverters are provided with wiring cavities 9. The battery control switch box 5 is arranged in the system distribution box 2, a power line between a BMS communication line of the photovoltaic inverter and a battery pack is required to pass through the battery control switch box 5, and the system distribution box 2 is provided with a box cover 7, so that the installation is convenient, wires are shielded, the installation of the whole structure is simple, the wires cannot be seen from the front after the installation, people cannot contact the power line, the personal safety is guaranteed, and the system distribution box is attractive and elegant.
The photovoltaic household energy storage integrated machine structure comprises a photovoltaic energy storage inverter 1, at least one low-voltage lithium battery pack and a system distribution box 2, a base 4, wherein the overall structure is installed from bottom to top, the base 4 is installed firstly, then the low-voltage lithium battery packs are stacked, and one, two or more lithium battery packs can be stacked.
This energy storage all-in-one is used to photovoltaic family structure, the installation step is as follows: firstly, a base 4 is installed, the base 4 is adjusted by a leveling rod, then a locating pin is installed on the base 4, after the locating pin is installed, a first low-voltage energy storage battery pack 3 is dropped on the base 4, the locating pin is matched with a locating hole 18, locating and limiting are carried out through the locating pin, then a second battery pack or a third battery pack is stacked in the same way, the number of stacks is determined according to the use requirement, after the battery pack is installed, a battery pack side cover is opened, and electric connection and communication connection are carried out through a positive power line 6 and a negative power line 6 and a BMS communication line.
After the parallel operation line of the battery is connected, then the battery fixing support 12 is installed, holes are drilled on the wall surface of the appointed installation position, the expansion bolts 15 are used for fixing on the fixing support 12, the installation locating plate 16 and the locating pins are used for locating, then the holes are drilled for installing the energy storage inverter to realize back hanging, after the back hanging of the energy storage inverter is installed, the system distribution box 2 is installed, the locating pins are used for locating through the rear part of the box body, the two fixing bolts 14 at the front part of the bottom of the system distribution box 2 are screwed for fixing the system distribution box 2 and the battery pack, after the system distribution box 2 is fixed, the energy storage inverter is installed on the system distribution box 2, and the position of the energy storage inverter is adjusted, so that the installation process is completed. The overall structure is attractive in appearance, wires or parts are not exposed, and the use safety is high; and each subassembly is connected stably, and the whole integral type design occupies little space.
The structure of the photovoltaic household energy storage integrated machine solves the problem that most of photovoltaic energy storage inverters 1 and energy storage battery packs 3 are installed separately to cause wire leakage, and improves structural attractiveness and safety; the positioning between each spare part is convenient, the installation is quick, and overall structure integral type design occupation space is little, and no redundant wire material leaks outward between each subassembly, guarantees the reliability of electrical connection.
The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.