Integrated inversion equipment for battery management

Abstract

The utility model belongs to the technical field of inverters, and particularly relates to integrated inversion equipment for battery management, which comprises an outer shell, an isolation plate, an energy storage battery pack module and a micro inverter module, the isolation plate is fixed in the outer shell and divides the inner side space of the outer shell into a first mounting cavity and a second mounting cavity, and the micro inverter module is arranged in the first mounting cavity. The single-opening door plates are hinged to the opening ends of the first mounting cavity and the second mounting cavity, and limiting blocks are fixed to the free ends of the single-opening door plates; the threaded rod is hinged to the outer wall of the outer shell; the butterfly nut is mounted at the extending end of the threaded rod in a threaded screwing manner; according to the utility model, the energy storage battery pack module and the micro inverter module are separately fixed, and the opening ends of the first mounting cavity and the second mounting cavity are hinged with the single door plates, so that the maintenance is more convenient, the whole outer shell does not need to be disassembled, and the stability and the safety of wire harness connection are ensured.

Description

Technical Field

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

[0002] A energy storage inverter is an important part of a photovoltaic power generation system. It integrates a battery management system, can deliver electric energy to the power grid, and can also obtain electric energy from the power grid. When the load is at a low ebb, 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] Energy storage inverters are generally used between energy storage systems and the power grid. The energy storage battery pack module and the micro-inverter module are the cores of the energy storage inverter.

[0004] An integrated energy storage inverter refers to that the energy storage battery pack module and the micro-inverter module are integrally installed in the same sheet metal housing, and the energy storage battery pack module and the micro-inverter module are connected by a wire harness.

[0005] It is retrieved that in the prior art, the Chinese utility model patent with the authorization announcement number of CN220693102U discloses a "balcony photovoltaic energy storage integrated machine", which includes a protection housing, a control component and a battery cell component. The middle of the accommodation cavity is separated into a first chamber and a second chamber by an isolation belt. The control component and the battery cell component are respectively located in the first chamber and the second chamber. The control component includes an inverter module, a transmission module, a BMS protection circuit board and a wireless communication circuit board. A debugging interface is arranged on the wireless communication circuit board. The transmission module is arranged on both sides of the protection housing, and the accommodation cavity is separated into a first chamber and a second chamber by an isolation belt.

[0006] For the inverter devices in the prior art including the above, although the inverter module and the battery pack are separately installed, which has a certain positive effect, when it is necessary to disassemble and repair the inverter module or the battery pack, the entire protection housing must be removed, and since there are wire harness interfaces on the protection housing and cables are connected to the tails of the wire harness interfaces, it is very easy to cause damage.

[0007] To solve the above problems, an integrated inverter device for battery management is proposed in this application. Summary of the Utility Model

[0008] To solve the above problems existing in the prior art, the utility model provides an integrated inverter device for battery management, which has the characteristics of convenient use and easy maintenance.

[0009] To achieve the above object, the present utility model provides the following technical solutions: An integrated battery management inverter device, including a housing, a partition board, a energy storage battery pack module and a micro-inverter module. The partition board is fixed inside the housing and divides the inner space of the housing into a first installation cavity and a second installation cavity. The energy storage battery pack module is installed in the first installation cavity, and the micro-inverter module is installed in the second installation cavity. A lead hole is processed on the partition board, and further includes:

[0010] Single-opening door panels, single-opening door panels are hinged at the opening ends of the first installation cavity and the second installation cavity respectively, and a limiting block is fixed at the free end of the single-opening door panel;

[0011] A threaded rod, the threaded rod is hinged to the outer wall of the housing, and a notch for the threaded rod to penetrate is processed on the limiting block;

[0012] A wing nut, the wing nut is installed on the protruding end of the threaded rod by means of screw thread engagement.

[0013] As a preferred technical solution of the present utility model, a clamping mechanism is further included. The clamping mechanism is located in the lead hole, and the clamping mechanism includes:

[0014] An arc-shaped clamping plate, the arc-shaped clamping plate is located in the lead hole;

[0015] A limiting plate, the limiting plate is fixed in the lead hole;

[0016] A pull rod, one end of the pull rod is fixedly connected to the arc-shaped clamping plate, and the other end penetrates through the limiting plate;

[0017] A return spring, the return spring is sleeved on the pull rod and is located between the arc-shaped clamping plate and the limiting plate.

[0018] As a preferred technical solution of the present utility model, further includes:

[0019] Guide sliders, two guide sliders are symmetrically fixed at both ends of the arc-shaped clamping plate, and guide chutes for the guide sliders to be embedded are processed on the inner wall of the lead hole.

[0020] As a preferred technical solution of the present utility model, further includes:

[0021] A limiting disc, the limiting disc is fixed at one end of the pull rod away from the arc-shaped clamping plate.

[0022] As a preferred technical solution of the present utility model, further includes:

[0023] A pull ring, the pull ring is fixed on the limiting disc.

[0024] As a preferred technical solution of the present utility model, it further includes:

[0025] Fixing feet are fixed at both the top end and the bottom end of the outer housing, and fixing holes are processed on the fixing feet.

[0026] As a preferred technical solution of the present utility model, a first heat dissipation hole communicating with the first installation cavity is processed on the outer side surface of the outer housing.

[0027] As a preferred technical solution of the present utility model, second heat dissipation holes communicating with the second installation cavity are processed on both the outer side surface and the bottom surface of the outer housing.

[0028] As a preferred technical solution of the present utility model, it further includes:

[0029] A transparent observation window is embedded and fixed on the single-opening door panel.

[0030] Compared with the prior art, the beneficial effects of the present utility model are:

[0031] In the present utility model, the energy storage battery pack module and the micro-inverter module are fixedly separated, and single-opening door panels are hinged at the opening ends of the first installation cavity and the second installation cavity, which makes maintenance more convenient, without the need to disassemble the entire outer housing, and ensures the stability and safety of the wire harness connection.

[0032] Some additional advantages and beneficial effects of this application will be given in part in the following description, some will become obvious from the following description, or will be understood through the practice of this application. Description of the Drawings

[0033] 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:

[0034] Figure 1 is the structural schematic diagram of the present utility model;

[0035] Figure 2 is the axonometric structural schematic diagram of the present utility model;

[0036] Figure 3 is the axonometric structural schematic diagram of the partition board in the present utility model;

[0037] Figure 4 is the present utility model Figure 1 The enlarged structural schematic diagram at A in;

[0038] Figure 5 is the present utility model Figure 3Schematic enlarged structure diagram of the clamping mechanism therein.

[0039] In the figure: 1. Outer housing; 11. First installation cavity; 12. Second installation cavity; 13. First heat dissipation hole; 14. Second heat dissipation hole; 2. Single-opening door panel; 21. Transparent observation window; 22. Limiting block; 221. Notch; 3. Fixed feet; 31. Fixing holes; 4. Partition board; 41. Lead hole; 42. Guide chute; 5. Energy storage battery pack module; 6. Micro-inverter module; 7. Clamping mechanism; 71. Arc-shaped clamping plate; 711. Guide slider; 72. Limiting plate; 73. Pull rod; 731. Limiting disc; 732. Pull ring; 74. Return spring; 8. Threaded rod; 9. Wing nut. Specific implementation mode

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to Figures 1 - 5 , the present invention provides the following technical solutions: An integrated battery management inverter device includes an outer housing 1, a partition board 4, an energy storage battery pack module 5 and a micro-inverter module 6. The partition board 4 is fixed inside the outer housing 1 and divides the inner space of the outer housing 1 into a first installation cavity 11 and a second installation cavity 12. The energy storage battery pack module 5 is installed in the first installation cavity 11, and the micro-inverter module 6 is installed in the second installation cavity 12. A lead hole 41 is processed on the partition board 4. It also includes: a single-opening door panel 2, a threaded rod 8 and a wing nut 9.

[0042] Further, by Figure 1 , Figure 2 and Figure 4As shown in the figure, in this embodiment, single-opening door panels 2 are hinged at the open ends of the first installation cavity 11 and the second installation cavity 12, and a limiting block 22 is fixed at the free end of the single-opening door panel 2. The threaded rod 8 is hinged to the outer wall of the housing 1, and a notch 221 for the threaded rod 8 to penetrate is machined on the limiting block 22. The wing nut 9 is installed on the protruding end of the threaded rod 8 by means of thread screwing. After adopting the above scheme, during use, the energy storage battery pack module 5 and the micro-inverter module 6 are separately and independently installed in the first installation cavity 11 and the second installation cavity 12. The energy storage battery pack module 5 and the micro-inverter module 6 are connected by a wire harness, and the wire harness connecting the energy storage battery pack module 5 and the micro-inverter module 6 passes through the lead hole 41. When it is necessary to repair the energy storage battery pack module 5 or the micro-inverter module 6, only the corresponding single-opening door panel 2 needs to be opened, which makes maintenance more convenient, without disassembling the entire housing 1, and ensures the stability and safety of the wire harness connection; during operation, close the single-opening door panel 2, then flip the threaded rod 8 so that the threaded rod 8 penetrates through the notch 221, and finally tighten the wing nut 9 on the protruding end of the threaded rod 8 to ensure the stability after the single-opening door panel 2 is closed.

[0043] Preferably, as shown by Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, in this embodiment, a clamping mechanism 7 is further included. The clamping mechanism 7 is located in the lead hole 41, and the clamping mechanism 7 includes: an arc-shaped clamping plate 71, a limiting plate 72, a pull rod 73, and a return spring 74. The arc-shaped clamping plate 71 is located in the lead hole 41, the limiting plate 72 is fixed in the lead hole 41, one end of the pull rod 73 is fixedly connected to the arc-shaped clamping plate 71 and the other end penetrates through the limiting plate 72, and the return spring 74 is sleeved on the pull rod 73 and is located between the arc-shaped clamping plate 71 and the limiting plate 72. After adopting the above scheme, when passing the wire harness connecting the energy storage battery pack module 5 and the micro-inverter module 6 through the lead hole 41, first use the pull rod 73 to pull the arc-shaped clamping plate 71. At this time, the return spring 74 is in a contracted state, then pass the wire harness through the lead hole 41, and finally release the pull rod 73. The return spring 74 releases its elastic force to make the arc-shaped clamping plate 71 reset, and the wire harness is clamped by the arc-shaped clamping plate 71 to improve the stability of the wire harness.

[0044] Preferably, as shown by Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, in this embodiment, a guiding slider 711 is further included. Two guiding sliders 711 are symmetrically fixed at both ends of the arc-shaped clamping plate 71, and guiding chutes 42 for the guiding sliders 711 to be embedded are machined on the inner wall of the lead hole 41. After adopting the above scheme, the two guiding sliders 711 provided are used to support and guide the arc-shaped clamping plate 71, improving the stability of the arc-shaped clamping plate 71.

[0045] Preferably, as shown by Figure 1 , Figure 2 , Figure 3 and Figure 5 in this embodiment, it further includes: a limit disk 731, which is fixed to one end of the pull rod 73 away from the arc-shaped clamping plate 71 and is used to limit the moving range of the arc-shaped clamping plate 71.

[0046] Preferably, as shown by Figure 1 , Figure 2 , Figure 3 and Figure 5 in this embodiment, it further includes: a pull ring 732, which is fixed on the limit disk 731. After adopting the above solution, it is convenient to pull the pull rod 73 to move by using the pull ring 732.

[0047] Optionally, as shown by Figure 1 and Figure 2 in this embodiment, it further includes: fixed feet 3, which are fixed to both the top end and the bottom end of the outer housing 1, and fixing holes 31 are machined on the fixed feet 3. After adopting the above solution, when in use, the outer housing 1 is fixed to a fixed object by passing bolts through the fixing holes 31.

[0048] Preferably, as shown by Figure 1 and Figure 2 in this embodiment, a first heat dissipation hole 13 communicating with the first installation cavity 11 is machined on the outer side surface of the outer housing 1, which is beneficial to air circulation and convenient for dissipating heat from the energy storage battery pack module 5.

[0049] Preferably, as shown by Figure 1 and Figure 2 in this embodiment, second heat dissipation holes 14 communicating with the second installation cavity 12 are machined on both the outer side surface and the bottom surface of the outer housing 1, which is beneficial to air circulation and convenient for dissipating heat from the micro-inverter module 6.

[0050] Preferably, as shown by Figure 1 in this embodiment, it further includes: a transparent observation window 21, which is embedded and fixed on the single-opening door panel 2. Through the transparent observation window 21, it is convenient to observe the states of the energy storage battery pack module 5 and the micro-inverter module 6 and facilitate timely handling of emerging faults.

[0051] The circuit connection involved in the present utility model is a conventional 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.

[0052] The components not described in detail herein are prior art.

[0053] Working principle and usage process of the present utility model: For the inverter device of the present utility model, during use, the energy storage battery pack module 5 and the micro-inverter module 6 are respectively and independently installed in the first installation cavity 11 and the second installation cavity 12. The energy storage battery pack module 5 and the micro-inverter module 6 are connected by a wire harness, and the wire harness connecting the energy storage battery pack module 5 and the micro-inverter module 6 passes through the lead hole 41;

[0054] When it is necessary to repair the energy storage battery pack module 5 or the micro-inverter module 6, only the corresponding single-opening door panel 2 needs to be opened, which is more convenient for maintenance. There is no need to disassemble the entire housing 1, and the stability and safety of the wire harness connection are ensured;

[0055] During operation, close the single-opening door panel 2, then turn the threaded rod 8 so that the threaded rod 8 passes through the notch 221, and finally tighten the butterfly nut 9 on the protruding end of the threaded rod 8 to ensure the stability after the single-opening door panel 2 is closed;

[0056] In addition, when passing the wire harness connecting the energy storage battery pack module 5 and the micro-inverter module 6 through the lead hole 41, first pull the arc-shaped clamping plate 71 with the pull rod 73. At this time, the return spring 74 is in a contracted state, then pass the wire harness through the lead hole 41, and finally release the pull rod 73. The return spring 74 releases elastic force to make the arc-shaped clamping plate 71 reset, and the wire harness is clamped by the arc-shaped clamping plate 71 to improve the stability of the wire harness.

[0057] 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, for those skilled in the art, they 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 inverter device for integrated battery management, comprising a housing (1), a partition board (4), a storage battery pack module (5) and a micro-inverter module (6). The partition board (4) is fixed inside the housing (1) and divides the inner space of the housing (1) into a first installation cavity (11) and a second installation cavity (12). The storage battery pack module (5) is installed in the first installation cavity (11), and the micro-inverter module (6) is installed in the second installation cavity (12). A lead hole (41) is processed on the partition board (4), and it is characterized in that, It further includes: Single-opening door panels (2), single-opening door panels (2) are hinged at the open ends of the first installation cavity (11) and the second installation cavity (12), and a limit block (22) is fixed at the free end of the single-opening door panel (2); Threaded rod (8), the threaded rod (8) is hinged to the outer wall of the outer housing (1), and a notch (221) for the threaded rod (8) to pass through is machined on the limit block (22); Butterfly nut (9), the butterfly nut (9) is installed on the protruding end of the threaded rod (8) by means of screw thread engagement.

2. The integrated inverter device for battery management according to claim 1, characterized in that: It further includes a clamping mechanism (7), the clamping mechanism (7) is located in the lead hole (41), and the clamping mechanism (7) includes: Arc-shaped clamping plate (71), the arc-shaped clamping plate (71) is located in the lead hole (41); Limit plate (72), the limit plate (72) is fixed in the lead hole (41); Pull rod (73), one end of the pull rod (73) is fixedly connected to the arc-shaped clamping plate (71), and the other end passes through the limit plate (72); Return spring (74), the return spring (74) is sleeved on the pull rod (73) and is located between the arc-shaped clamping plate (71) and the limit plate (72).

3. An inverter device for integrated battery management according to claim 2, characterized in that: It further includes: Guide sliders (711), two of the guide sliders (711) are symmetrically fixed at both ends of the arc-shaped clamping plate (71), and guide chutes (42) for the guide sliders (711) to be embedded are machined on the inner wall of the lead hole (41).

4. An inverter device for integrated battery management according to claim 2, characterized in that: It further includes: Limit disk (731), the limit disk (731) is fixed at one end of the pull rod (73) away from the arc-shaped clamping plate (71).

5. An inverter device for integrated battery management according to claim 4, characterized in that: It further includes: Pull ring (732), the pull ring (732) is fixed on the limit disk (731).

6. An inverter device for integrated battery management according to claim 1, characterized in that: It further includes: Fixed feet (3), fixed feet (3) are fixed at the top and bottom of the outer housing (1), and fixing holes (31) are machined on the fixed feet (3).

7. An inverter device for integrated battery management according to claim 1, characterized in that: A first heat dissipation hole (13) communicating with the first installation cavity (11) is machined on the outer side surface of the outer housing (1).

8. An inverter device for integrated battery management according to claim 1, characterized in that: Second heat dissipation holes (14) communicating with the second installation cavity (12) are machined on the outer side surface and the bottom surface of the outer housing (1).

9. An inverter device for integrated battery management according to claim 1, characterized in that: It further includes: Transparent observation window (21), the transparent observation window (21) is embedded and fixed on the single-opening door panel (2).

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