Optical storage hybrid inverter

Abstract

The utility model relates to an optical storage hybrid inverter, which belongs to the technical field of inverters, and comprises a box body, a power inductance module arranged on one side in the box body and a power plate arranged on the other side in the box body, heat dissipation fins are arranged on the outer side of the power inductance module, a filtering module is arranged above the power inductance module, and the filtering module is connected with the box body. The box body is provided with an opening at the position of the power inductance module, so that the power inductance module is exposed below the box body for heat dissipation; a photovoltaic power module, a battery boosting power module and an inversion power module are arranged above the power board, power board cooling fins are arranged below the power board, a fan module installed on the front side face of the box body is arranged in front of the power board cooling fins, an air outlet is formed in the rear side face of the box body, and air enters the box body from the fan module and then flows into the box body. And after passing through the radiating fins of the power board, the power board leaves from the air outlet to radiate the heat of the module on the power board. According to the utility model, on the basis of heat dissipation, the overall weight of the inverter is reduced, the assembling and processing steps are reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of inverter technology, specifically relating to a photovoltaic-storage hybrid inverter. Background Technology

[0002] Traditional photovoltaic (PV) inverters simply convert the direct current (DC) generated by solar cells into alternating current (AC) for power grid or appliance use. Energy storage inverters, on the other hand, focus more on bidirectional energy conversion. Hybrid PV-energy storage inverters, however, are intelligent power conversion devices that integrate the functions of a grid-connected PV inverter and an energy storage converter. They serve not only as the interface between the PV system and the grid but also as a bridge between the PV system and energy storage batteries, achieving efficient bidirectional energy conversion between DC and AC and offering multiple operating modes to manage energy flow. Therefore, hybrid PV-energy storage inverters provide higher energy utilization and system flexibility by integrating PV power generation and energy storage systems. Currently, with advancements in battery technology and significant cost reductions, especially the maturity of lithium-ion battery technology, inverter companies are exploring the integration of energy storage systems with inverter technology, leading to the rapid development of hybrid PV-energy storage inverters. However, current hybrid PV-energy storage inverters lack a heat dissipation design, simply using a separate design for DC and AC inductors. While this reduces the inverter's heat dissipation burden, it increases unnecessary workload during production. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a photovoltaic-storage hybrid inverter, adjusting the position of each module, optimizing the layout to improve heat dissipation, and facilitating production.

[0004] The technical solution is as follows:

[0005] A photovoltaic-storage hybrid inverter includes a housing, a power inductor module mounted on one side of the housing, and a power board mounted on the other side of the housing. The power inductor module has heat dissipation fins on its outer side and a filter module above it. The housing has an opening at the location of the power inductor module, allowing it to be exposed for heat dissipation at the bottom of the housing. The power board has a photovoltaic (PV) power module, a battery-electric boost (BAT) power module, and an inverter power module mounted above it. A power board heat sink is located below the power board. A fan module mounted on the front side of the housing is positioned in front of the power board heat sink. An air outlet is located on the rear side of the housing. Air enters the housing from the fan module, passes through the power board heat sink, and exits from the air outlet, thus dissipating heat from the modules on the power board.

[0006] Furthermore, a detachable bracket is provided on both the power inductor module side and the power board side at the bottom of the enclosure for mounting the photovoltaic-storage hybrid inverter. The bracket is a rectangular block with an opening at the bottom, and two outwardly bent lugs on the closed part at the bottom. Both the enclosure and the bracket are made of metal.

[0007] Furthermore, the photovoltaic power module and the battery boost power module are arranged side by side in front of the air intake on the power board, and the inverter power module is behind the photovoltaic power module and the battery boost power module. The air first passes through the photovoltaic power module and the battery boost power module, and then passes through the inverter power module.

[0008] Furthermore, the power inductor module includes a photovoltaic inductor, a battery inductor, and an inverter inductor. The external photovoltaic input and battery input are electrically connected to the photovoltaic power module and the battery boost power module through the input port on the side of the enclosure, and then connected to the inverter power module. The output is then output through the output port on the side of the enclosure. The photovoltaic power module, the battery boost power module, and the inverter power module are electrically connected to the photovoltaic inductor, the battery inductor, and the inverter inductor respectively through wires.

[0009] Furthermore, the fan module includes a fan cover, a fan, and a perforated partition. The fan is mounted behind the fan cover, and the perforated partition is positioned between the fan and the power board heatsink.

[0010] Furthermore, the fans are ball bearing silent fans, and there is at least one of them.

[0011] Furthermore, the porous partition has honeycomb-shaped ventilation holes and is folded inward at 5°-15° to facilitate heat dissipation.

[0012] Beneficial effects:

[0013] 1) By rationally arranging the various modules, this utility model reduces the overall weight of the inverter while taking into account heat dissipation, effectively reducing assembly and processing steps on the production line and reducing overall production costs.

[0014] 2) The fan module adopts a ball bearing silent fan, which reduces operating noise and improves fan life. The perforated partition can enhance the heat dissipation of each module on the power board.

[0015] 3) The power inductor module integrates photovoltaic inductors, battery inductors, and inverter inductors, and is centrally cooled by exposed heat sinks. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the photovoltaic-storage hybrid inverter of this utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 This is a rear view of the present invention when a dual-fan configuration is used;

[0019] Figure 4 This is a rear view of the present invention when a single fan is used;

[0020] Figure 5 This is a schematic diagram illustrating the heat dissipation principle of this utility model;

[0021] Wherein: 1 is the enclosure, 11 is the input port, 12 is the output port, 13 is the air outlet, 2 is the power board, 21 is the photovoltaic power module, 22 is the battery boost power module, 23 is the inverter power module, 24 is the power board heat sink, 3 is the power inductor module, 31 is the heat sink fin, 32 is the filter module, 4 is the fan module, 41 is the fan cover, 42 is the fan, 43 is the perforated partition, and 5 is the mounting bracket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit it. Terms such as "upper," "lower," "front," "rear," "left," "right," "bottom," "inner," and "outer," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the utility model. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model.

[0023] like Figures 1 to 4 The photovoltaic-storage hybrid inverter shown includes a housing 1, a power inductor module 3 installed on one side inside the housing 1, and a power board 2 installed on the other side inside the housing 1. The power inductor module 3 is provided with heat dissipation fins 31 on its outer side, and a filter module 32 is provided above the power inductor module 3. The housing 1 has an opening at the position of the power inductor module 3, so that the power inductor module 3 is exposed at the bottom of the housing 1 for heat dissipation. The power board 2 is provided with a photovoltaic power module 21, a battery boost power module 22, and an inverter power module 23 on its upper side, and a power board heat sink 24 is provided below the power board 2. A fan module 4 is provided in front of the power board heat sink 24 and is installed on the front side of the housing 1. An air outlet 13 is opened on the rear side of the housing 1. Air enters the housing 1 from the fan module 4, passes through the power board heat sink 24, and leaves from the air outlet 13, thus dissipating heat from the modules on the power board 2.

[0024] A detachable bracket 5 is provided on both the power inductor module side and the power board side at the bottom of the enclosure 1 for mounting the photovoltaic-storage hybrid inverter. The bracket 5 is a rectangular block with an opening at the bottom, and two outwardly bent lugs on the unopened part at the bottom. Both the enclosure 1 and the bracket 5 are made of metal.

[0025] Example: Figure 5As shown, after the external photovoltaic panel is connected to the inverter's input port 11, electrical energy is input unidirectionally via the photovoltaic power module 21 and the photovoltaic inductor. After the external battery pack is connected to the inverter's input port 11, the battery charging or discharging function is completed through the battery boost power module 22 and the battery inductor. Finally, the DC power from the photovoltaic side and / or the battery side is converted into AC power by the inverter power module 23, realizing bidirectional power flow. This allows the inverter to supply power externally via its output port 12 or to obtain electrical energy from the output port 12. The photovoltaic power module 21 and the battery boost power module 22 are arranged side-by-side in front of the air intake on the power board 2, with the inverter power module 23 behind them. The airflow first passes through the photovoltaic power module 21 and the battery boost power module 22, and then through the inverter power module 23. The power inductor module 3 includes a photovoltaic inductor, a battery inductor, and an inverter inductor. The external photovoltaic input and battery input are electrically connected to the photovoltaic power module 21 and the battery boost power module through the input port 11 on the side of the enclosure 1, and then connected to the inverter power module. The output is then output through the output port 12 on the side of the enclosure 1. The photovoltaic power module 21, the battery boost power module 22, and the inverter power module 23 are electrically connected to the photovoltaic inductor, the battery inductor, and the inverter inductor respectively through wires.

[0026] like Figure 3 The fan module 4 shown includes a fan cover 41, a fan 42, and a perforated partition 43. The fan 42 is mounted behind the fan cover 41, and the perforated partition 43 is positioned between the fan 42 and the power board heatsink 24. Two fans 42 are ball bearing silent fans. The perforated partition 43 has honeycomb-shaped ventilation holes and is folded inwards at a 5°-15° angle to facilitate heat dissipation.

[0027] Figure 4 This is an example of using a ball bearing silent fan in fan module 4; otherwise, it is the same as before.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles and spirit of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hybrid optical storage inverter, characterized by: The utility model provides a kind of photovoltaic storage hybrid inverter, including box (1), power inductance module (3) being installed in one side in box (1) and power board (2) being installed in other side in box (1), wherein power inductance module (3) outside is provided with radiating fin (31), power inductance module (3) top is provided with filter module (32), box (1) is opened at power inductance module (3) position, so that power inductance module (3) is exposed radiating under box (1);Power board (2) top is provided with photovoltaic power module (21), battery boost power module (22) and inverter power module (23), power board (2) bottom is provided with power board radiating fin (24), power board radiating fin (24) front is provided with fan module (4) being installed in the front side of box (1), box (1) rear side is opened with air outlet (13), wind from fan module (4) into box (1) inside, after passing through power board radiating fin (24), from air outlet (13) and leave, for the module radiating on power board (2).

2. The optical storage hybrid inverter of claim 1, wherein: The box (1) is provided with a detachable hanger (5) on the power inductance module side and the power board side, which is used for the hanging installation of the photovoltaic storage hybrid inverter.

3. The optical storage hybrid inverter of claim 1, wherein: The power board (2) is provided with the photovoltaic power module (21) and the battery boost power module (22) in front of the air inlet, and the inverter power module (23) is behind the photovoltaic power module (21) and the battery boost power module (22).

4. The optical storage hybrid inverter of claim 1, wherein: The power inductance module (3) includes a photovoltaic inductor, a battery inductor and an inverter inductor.

5. The optical storage hybrid inverter of claim 1, wherein: The fan module (4) includes a fan cover (41), a fan (42) and a porous partition plate (43).

6. The optical storage hybrid inverter of claim 5, wherein: The fan (42) is a silent fan with ball bearings, and the number is at least one.

7. The optical storage hybrid inverter of claim 5, wherein: The porous partition plate (43) is provided with honeycomb-shaped ventilation holes, which are inwardly bent by 5-15 degrees to facilitate heat dissipation.

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