Energy storage type inversion device based on battery management

Abstract

The utility model belongs to the technical field of energy storage inverters, and particularly relates to an energy storage type inversion device based on battery management, which comprises an outer shell, a front cover plate fixed on the front surface of the outer shell, an isolation plate, a battery pack, a micro inverter and fixing feet, a fixed rail; the fixing mechanism comprises a rubber supporting block, a threaded rod and a butterfly nut, the rubber supporting block is located between the fixing rail and the fixing foot, the threaded rod is fixed to the fixing rail and penetrates through the fixing hole, and the butterfly nut is installed at the extending end of the threaded rod in a threaded screwing mode; according to the utility model, the outer shell is fixedly mounted through the fixed rail, the threaded rod and the butterfly nut, the mounting is convenient, the outer shell can be mounted and dismounted without a tool, and the rubber supporting block is used for supporting and isolating, so that a gap is formed between the back surface of the outer shell and a fixed object, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage inverters, and particularly relates to an energy storage inverter device based on battery management. Background Art

[0002] The energy storage inverter is an important part of the photovoltaic power generation system. It integrates a battery management system and can transmit electric energy to the power grid and also obtain electric energy from the power grid. When the load is at a low valley, the electric energy is stored in the battery. When the load is at a peak, the stored electric energy is released to reduce the pressure on the power grid. When the power grid fails, it can also switch to the off-grid mode to continue power supply, realizing stable control of energy.

[0003] The energy storage inverter is generally used between the energy storage system and the power grid. The energy storage battery pack module and the micro-inverter module are the core components of the energy storage inverter.

[0004] When in use, the energy storage inverter is usually fixed on the wall with expansion bolts. For example, in a household photovoltaic power generation system, the energy storage inverter is usually fixed on the wall of the balcony with expansion bolts. Although it can meet general usage requirements, after fixation, the back of the energy storage inverter is closely attached to the wall. On the one hand, rainwater is likely to seep in, causing corrosion of the outer shell of the energy storage inverter and affecting the safe operation of the energy storage inverter. On the other hand, it is not conducive to the ventilation and heat dissipation of the energy storage inverter.

[0005] To solve the above problems, an energy storage inverter device based on battery management is proposed in this application. Content of the Utility Model

[0006] To solve the above problems existing in the prior art, the utility model provides an energy storage inverter device based on battery management, which has the characteristics of convenient use and high safety performance.

[0007] To achieve the above object, the utility model provides the following technical solution: An energy storage inverter device based on battery management, including an outer shell, a front cover plate fixed to the front of the outer shell, a partition board, a battery pack, and a micro-inverter. The partition board is fixed inside the outer shell to divide the internal space of the outer shell into a first installation chamber and a second installation chamber, and a lead hole is processed on the partition board. The battery pack is fixed in the first installation chamber, and the micro-inverter is fixed in the second installation chamber. It further includes:

[0008] Fixing feet, two of the fixing feet are symmetrically fixed at both ends of the outer shell, and fixing holes are provided on the fixing feet;

[0009] Fixing rails, two of the fixing rails are symmetrically distributed and fixed on a fixed object;

[0010] Fixing mechanism, the fixing mechanism includes a rubber support block, a threaded rod and a wing nut. The rubber support block is located between the fixed rail and the fixed foot. The threaded rod is fixed on the fixed rail and penetrates through the fixing hole. The wing nut is installed on the protruding end of the threaded rod by means of thread screwing.

[0011] As a preferred technical solution of the present invention, two symmetrically distributed threaded rods are fixed on the fixed rail.

[0012] As a preferred technical solution of the present invention, the threaded rod penetrates through the rubber support block.

[0013] As a preferred technical solution of the present invention, heat dissipation holes are processed on both the left and right sides of the outer housing.

[0014] As a preferred technical solution of the present invention, it further includes a dust-proof mechanism, and the dust-proof mechanism includes:

[0015] Ventilation frame, the ventilation frame is fixed at a position on the outer wall of the outer housing corresponding to the heat dissipation hole;

[0016] Dust-proof net, the dust-proof net is fixed on the side of the ventilation frame away from the outer housing.

[0017] As a preferred technical solution of the present invention, it further includes:

[0018] Fixing blocks, the fixing blocks are fixed at both ends of the dust-proof net;

[0019] Locking pins, locking grooves are processed at both ends of the ventilation frame, and the locking pins penetrate through the fixing blocks and are embedded in the locking grooves;

[0020] Limit rings, the limit rings are fixed on the locking pins;

[0021] Return springs, the return springs are sleeved on the locking pins and are located between the fixing blocks and the limit rings.

[0022] As a preferred technical solution of the present invention, it further includes:

[0023] Limit discs, the limit discs are fixed at one end of the locking pins away from the ventilation frame;

[0024] Pull rings, the pull rings are fixed on the limit discs.

[0025] As a preferred technical solution of the present invention, it further includes a heat conduction mechanism, and the heat conduction mechanism includes:

[0026] Metal heat conduction plate, the metal heat conduction plate is fixed on the back of the outer housing;

[0027] Heat dissipation fins, and a plurality of the heat dissipation fins are fixedly arranged on the metal heat conducting plate at equal intervals.

[0028] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0029] In the present utility model, the outer casing is fixedly installed through the fixing rail, the threaded rod and the wing nut, and the installation is convenient. The installation and disassembly of the outer casing can be realized without using tools, and the rubber support block is used for support and isolation, so that there is a gap between the back surface of the outer casing and the fixed object, improving the safety.

[0030] Some additional advantages and beneficial effects of the present application will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present application. Description of the Drawings

[0031] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0032] Figure 1 is a schematic structural diagram of the present utility model;

[0033] Figure 2 is of the present utility model Figure 1 an enlarged structural diagram of the fixing mechanism;

[0034] Figure 3 is an axonometric structural diagram of the dust-proof net of the present utility model;

[0035] Figure 4 is of the present utility model Figure 3 an enlarged structural diagram of part A;

[0036] Figure 5 is an axonometric structural diagram of the heat conducting mechanism of the present utility model.

[0037] In the figure: 1. Outer casing; 11. First installation chamber; 12. Second installation chamber; 13. Heat dissipation holes; 14. Fixed feet; 141. Fixed holes; 2. Front cover plate; 3. Partition plate; 31. Lead hole; 4. Battery pack; 5. Micro-inverter; 6. Fixing rail; 7. Fixing mechanism; 71. Rubber support block; 72. Threaded rod; 73. Wing nut; 8. Dust-proof mechanism; 81. Ventilation frame; 811. Locking groove; 82. Dust-proof net; 821. Fixed block; 83. Locking pin; 84. Limiting ring; 85. Return spring; 86. Limiting disc; 87. Pull ring; 9. Heat conducting mechanism; 91. Metal heat conducting plate; 92. Heat dissipation fins. Detailed Embodiments

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] Please refer to Figures 1 - 5 , the present utility model provides the following technical solutions: A battery management-based energy storage inverter device, including an outer housing 1, a front cover plate 2 fixed to the front of the outer housing 1, a partition plate 3, a battery pack 4, and a micro-inverter 5. The partition plate 3 is fixed inside the outer housing 1 to divide the internal space of the outer housing 1 into a first installation chamber 11 and a second installation chamber 12, and a lead hole 31 is processed on the partition plate 3. The battery pack 4 is fixed in the first installation chamber 11, and the micro-inverter 5 is fixed in the second installation chamber 12. It further includes: fixing feet 14, fixing rails 6, and a fixing mechanism 7.

[0040] Furthermore, as shown by Figure 1 and Figure 2 , in this embodiment, two fixing feet 14 are symmetrically fixed at both ends of the outer housing 1, and fixing holes 141 are provided on the fixing feet 14. Two fixing rails 6 are symmetrically distributed and fixed on the fixed object. The fixing mechanism 7 includes a rubber support block 71, a threaded rod 72, and a wing nut 73. The rubber support block 71 is located between the fixing rail 6 and the fixing foot 14. The threaded rod 72 is fixed on the fixing rail 6 and passes through the fixing hole 141. The wing nut 73 is installed on the extended end of the threaded rod 72 by means of screw thread engagement. After adopting the above solution, during use, first use expansion bolts to fix the fixing rail 6 to the wall surface or other fixed objects, then hang the outer housing 1 on the fixing rail 6, make the threaded rod 72 pass through the fixing hole 141, and use the rubber support block 71 to support between the fixing rail 6 and the fixing foot 14. Finally, tighten the wing nut 73 on the extended end of the threaded rod 72 for locking. The battery pack 4 is fixed in the first installation chamber 11 using bolts, and the micro-inverter 5 is fixed in the second installation chamber 12 using bolts, and the battery pack 4 and the micro-inverter 5 are connected by a wire harness. The present utility model fixes and installs the outer housing 1 through the fixing rail 6, the threaded rod 72, and the wing nut 73. The installation is convenient, and the installation and disassembly of the outer housing 1 can be realized without the aid of tools. The rubber support block 71 is used for support and isolation, so that there is a gap between the back surface of the outer housing 1 and the fixed object, improving safety and facilitating air circulation and ventilation and heat dissipation.

[0041] Preferably, as shown by Figure 1 and Figure 2As shown, in this embodiment, two symmetrically distributed threaded rods 72 are fixed on the fixed rail 6. After adopting the above design, the outer shell 1 is fixedly installed by using two fixed rails 6 and four threaded rods 72, and the installation stability is high.

[0042] Preferably, Figure 1 and Figure 2 As shown, in this embodiment, the threaded rod 72 penetrates through the rubber support block 71. After adopting the above design, there is no need to use other means to further fix the rubber support block 71 to the fixed rail 6 or the fixed foot 14. The rubber support block 71 is supported by the threaded rod 72, and after the wing nut 73 is tightened, the fixed rail 6 and the fixed foot 14 squeeze the rubber support block 71, which can ensure the stability of the installation of the rubber support block 71 and is also convenient for disassembling and replacing the damaged rubber support block 71.

[0043] Preferably, Figure 1 As shown, in this embodiment, heat dissipation holes 13 are processed on both the left and right sides of the outer shell 1. After adopting the above design, it is convenient for air circulation and helps to ventilate and dissipate heat from the battery pack 4 and the micro-inverter 5.

[0044] Preferably, Figure 1 and Figure 3 As shown, in this embodiment, a dust-proof mechanism 8 is further included, and the dust-proof mechanism 8 includes: a ventilation frame 81 and a dust-proof net 82. The ventilation frame 81 is fixed at a position on the outer wall of the outer shell 1 corresponding to the heat dissipation hole 13, and the dust-proof net 82 is fixed on the side of the ventilation frame 81 away from the outer shell 1. After adopting the above design, the dust-proof net 82 is used to block external dust and prevent dust from entering the outer shell 1, improving the working safety of the battery pack 4 and the micro-inverter 5.

[0045] Preferably, Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, it further includes: a fixing block 821, a locking pin 83, a limiting ring 84, and a return spring 85. The fixing block 821 is fixed to both ends of the dust-proof net 82. Locking grooves 811 are machined at both ends of the ventilation frame 81. The locking pin 83 passes through the fixing block 821 and is embedded in the locking groove 811. The limiting ring 84 is fixed on the locking pin 83. The return spring 85 is sleeved on the locking pin 83 and is located between the fixing block 821 and the limiting ring 84. After adopting the above solution, when installing the dust-proof net 82, pull the two locking pins 83 outward. At this time, the return spring 85 is in a contracted state. Then, attach the dust-proof net 82 to the end of the ventilation frame 81 and align the locking pin 83 with the locking groove 811. At this time, release the locking pin 83, and the return spring 85 releases its elastic force to reset the locking pin 83, so that the locking pin 83 is embedded in the locking groove 811 for locking, thus realizing the stable installation of the dust-proof net 82, and the installation is convenient; when it is necessary to disassemble the dust-proof net 82, pull the two locking pins 83 outward. After the locking pin 83 disengages from the locking groove 811, the dust-proof net 82 can be easily removed, which is convenient for disassembly and cleaning.

[0046] Preferably, as shown by Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, it further includes a limiting disk 86 and a pull ring 87. The limiting disk 86 is fixed to the end of the locking pin 83 away from the ventilation frame 81, and the pull ring 87 is fixed on the limiting disk 86. After adopting the above solution, the limiting disk 86 is used to limit the movement range of the locking pin 83, and it is easy to pull the locking pin 83 through the pull ring 87.

[0047] Preferably, as shown by Figure 1 and Figure 5 As shown, in this embodiment, it further includes a heat conduction mechanism 9, and the heat conduction mechanism 9 includes: a metal heat conduction plate 91 and heat dissipation fins 92. The metal heat conduction plate 91 is fixed to the back of the outer shell 1, and a plurality of heat dissipation fins 92 are equally spaced and fixed on the metal heat conduction plate 91. Both the metal heat conduction plate 91 and the heat dissipation fins 92 are aluminum components, and the metal heat conduction plate 91 is fixed to the back of the outer shell 1 using bolts. In cooperation with the plurality of heat dissipation fins 92, the heat conduction area is increased, and the heat conducted to the outer shell 1 will be absorbed by the metal heat conduction plate 91 and the heat dissipation fins 92, further improving the heat dissipation efficiency of the energy storage inverter.

[0048] The circuit connection involved in the present utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of experiments, belonging to the widely used prior art.

[0049] The components not described in detail herein are prior art.

[0050] Working principle and usage process of the present utility model: For the energy storage inverter of the present utility model, during use, first use expansion bolts to fix the fixing rail 6 to the wall or other fixtures, and then hang the outer casing 1 on the fixing rail 6, making the threaded rod 72 pass through the fixing hole 141, and use the rubber support block 71 to support between the fixing rail 6 and the fixing foot 14. Finally, tighten the wing nut 73 on the protruding end of the threaded rod 72 for locking;

[0051] The battery pack 4 is fixed in the first installation chamber 11 using bolts, and the micro-inverter 5 is fixed in the second installation chamber 12 using bolts, and the battery pack 4 and the micro-inverter 5 are connected by a wiring harness;

[0052] The present utility model fixes and installs the outer casing 1 through the fixing rail 6, the threaded rod 72 and the wing nut 73. The installation is convenient, and the installation and disassembly of the outer casing 1 can be achieved without the aid of tools. The rubber support block 71 is used for support and isolation, so that there is a gap between the back surface of the outer casing 1 and the fixture, improving safety and facilitating air circulation for ventilation and heat dissipation.

[0053] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An energy storage inverter device based on battery management, comprising an outer shell (1), a front cover plate (2) fixed to the front of the outer shell (1), an isolation plate (3), a battery pack (4) and a micro inverter (5), wherein the isolation plate (3) is fixed in the outer shell (1) and is used to separate the internal space of the outer shell (1) into a first installation chamber (11) and a second installation chamber (12), and a lead hole (31) is processed on the isolation plate (3), the battery pack (4) is fixed in the first installation chamber (11), and the micro inverter (5) is fixed in the second installation chamber (12), characterized in that: Also includes: Fixed feet (14), the two fixed feet (14) being symmetrically fixed at two ends of the outer shell (1), and having fixing holes (141) on the fixed feet (14); Fixed rails (6), the two fixed rails (6) being symmetrically distributed and fixed on a fixed object; A fixing mechanism (7), the fixing mechanism (7) comprising a rubber support block (71), a threaded rod (72) and a butterfly nut (73), the rubber support block (71) being located between the fixing rail (6) and the fixing foot (14), the threaded rod (72) being fixed on the fixing rail (6) and passing through the fixing hole (141), and the butterfly nut (73) being mounted on the protruding end of the threaded rod (72) by means of a threaded engagement.

2. The energy storage inverter device based on battery management according to claim 1, characterized in that: Two symmetrically distributed threaded rods (72) are fixed on the fixing rail (6).

3. The energy storage inverter device based on battery management according to claim 1, characterized in that: The threaded rod (72) passes through the rubber support block (71).

4. The energy storage inverter device based on battery management according to claim 1, characterized in that: Heat dissipation holes (13) are processed on both the left and right sides of the outer shell (1).

5. The energy storage inverter device based on battery management according to claim 4 is characterized in that: It also includes a dust blocking mechanism (8), and the dust blocking mechanism (8) includes: A ventilation frame (81), the ventilation frame (81) being fixed to a position of the outer wall of the outer shell (1) corresponding to the heat dissipation hole (13); A dust screen (82), the dust screen (82) being fixed to a side of the ventilation frame (81) away from the outer shell (1).

6. The energy storage inverter device based on battery management according to claim 5, characterized in that: Also includes: A fixing block (821), the fixing block (821) being fixed to two ends of the dust shielding net (82); A locking pin (83), wherein locking grooves (811) are machined at both ends of the ventilation frame (81), and the locking pin (83) penetrates the fixing block (821) and then is embedded in the locking groove (811); a limiting ring (84), the limiting ring (84) being fixed on the locking pin (83); A return spring (85), the return spring (85) being sleeved on the locking pin (83) and being located between the fixing block (821) and the limiting ring (84).

7. The energy storage inverter device based on battery management according to claim 6 is characterized in that: Also includes: a limiting plate (86), the limiting plate (86) being fixed to an end of the locking pin (83) away from the ventilation frame (81); A pull ring (87), wherein the pull ring (87) is fixed on the limiting plate (86).

8. The energy storage inverter device based on battery management according to claim 1, characterized in that: It also includes a heat conduction mechanism (9), and the heat conduction mechanism (9) includes: A metal heat conducting plate (91), the metal heat conducting plate (91) being fixed to the back side of the outer shell (1); Heat dissipation fins (92), wherein a plurality of the heat dissipation fins (92) are fixed on the metal heat conduction plate (91) at equal intervals.

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