Energy storage inverter

Abstract

The utility model discloses an energy storage inverter, which comprises a box body, a heat dissipation assembly, a boost inductor, an inversion inductor and a transformer, and is characterized in that a power unit is arranged in the box body; the heat dissipation assembly is arranged on the first outer side portion of the box body in the first direction, and the heat dissipation assembly abuts against the power unit. The boost inductor and the inversion inductor are arranged on the first outer side portion of the box body in the first direction, the boost inductor and the inversion inductor are distributed on the two sides of the heat dissipation assembly respectively, and the boost inductor and the inversion inductor are both electrically connected with the power unit; the transformer is arranged on the first outer side portion of the body in the first direction, the transformer and the boost inductor are arranged on the same side, the transformer is electrically connected with the power unit, and the energy storage inverter is compact in layout, convenient to install and good in heat dissipation effect.

Description

Technical Field

[0001] The present application relates to the technical field of solar photovoltaic power generation systems, and in particular to an energy storage inverter. Background Art

[0002] The energy storage inverter converts electrical energy into potential energy in the energy storage body and then releases it when needed to achieve a balance between energy storage and output;

[0003] However, at present, there are many unreasonable aspects in the layout structure of energy storage inverters, such as poor heat dissipation, too long leads, low space utilization, and inconvenient installation and maintenance. Utility Model Content

[0004] In order to overcome the above shortcomings, the purpose of this application is to provide an energy storage inverter, which has a compact layout, is easy to install and has good heat dissipation effect.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] An energy storage inverter, comprising:

[0007] A box body, wherein a power unit is arranged in the box body;

[0008] a heat dissipation assembly, disposed on a first outer side of the box along a first direction, and the heat dissipation assembly abuts against the power unit;

[0009] A boost inductor and an inverter inductor are arranged on a first outer side of the box along the first direction, and the boost inductor and the inverter inductor are respectively distributed on both sides of the heat dissipation component, and the boost inductor and the inverter inductor are both electrically connected to the power unit;

[0010] A transformer is arranged on a first outer side of the box along the first direction, and the transformer and the boost inductor are arranged on the same side, and the transformer is electrically connected to the power unit.

[0011] In a specific embodiment, the boost inductor and the inverter inductor are parallel to each other and staggered;

[0012] The transformer and the boost inductor are arranged in parallel in a first direction.

[0013] In a specific embodiment, the power unit includes: a power board;

[0014] A DSP control board is plugged into a surface of the power board on one side away from the first outer side;

[0015] The auxiliary power supply board and the load output board are stacked on a side surface of the power board away from the first outer portion through pillars, and are respectively distributed on both sides of the DSP control board.

[0016] In a specific embodiment, it also includes:

[0017] A fan assembly is arranged on the first outer side of the box body, and the fan assembly is used to supply air to the heat dissipation assembly along the first direction.

[0018] In a specific embodiment, the heat dissipation assembly includes a plurality of first heat dissipation fins arranged in parallel and at intervals, and a heat dissipation channel is formed between two adjacent heat dissipation fins.

[0019] In a specific embodiment, it also includes:

[0020] a DC input port assembly, disposed on the second outer side of the box body and connected to the power unit;

[0021] The AC output port assembly is arranged on the second outer side of the box body and is connected to the power unit; the second outer side of the box body is perpendicular to the first outer side of the box body.

[0022] In a specific embodiment, it further comprises:

[0023] Input copper busbar assembly, including positive input copper busbar and negative input copper busbar,

[0024] The DC input port assembly includes a positive input port and a negative input port;

[0025] The first end of the negative input copper busbar is connected to the negative input port, the second end of the negative input copper busbar is connected to the power unit, the first end of the positive input copper busbar is connected to the positive input port, the second end of the positive input copper busbar is connected to the power unit, and a fuse is configured between the first end and the second end of the positive input copper busbar.

[0026] In a specific embodiment, a plurality of second heat sinks distributed in parallel and at intervals are provided on the peripheries of the transformer, the boost inductor and the inverter inductor.

[0027] In a specific embodiment, it also includes

[0028] At least two heat dissipation support frames are arranged on the first outer side of the box along the first direction,

[0029] The two heat dissipation support frames are respectively distributed on a side of the boost inductor and the inverter inductor away from the heat dissipation component.

[0030] In a specific embodiment, the two heat dissipation support frames are respectively provided with scraper supports on one side away from the box body, and the two scraper supports are connected by a back plate.

[0031] Beneficial effects

[0032] In the present application, the boost inductor, inverter inductor, and transformer are arranged on the first outer side of the box and are respectively located on both sides of the heat dissipation assembly. On the one hand, this facilitates the wiring of the boost inductor, inverter inductor, and transformer and facilitates installation. On the other hand, this ensures that the heat dissipation space of the power unit does not overlap with the heat dissipation space of the boost inductor, inverter inductor, and transformer, which is beneficial to improving the overall heat dissipation efficiency of the energy storage inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are intended to facilitate understanding of the technical solutions of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solutions of the present disclosure and do not constitute a limitation of the technical solutions of the present disclosure. The shapes and sizes of the components in the accompanying drawings do not reflect the actual scale and are intended only to illustrate the contents of this application.

[0034] Figure 1 A schematic diagram of the energy storage inverter structure provided in this embodiment;

[0035] Figure 2 A schematic diagram of the internal structure of the box provided in this embodiment;

[0036] Figure 3 A schematic diagram of the power unit structure provided in this embodiment;

[0037] Figure 4 A schematic diagram of the heat dissipation assembly structure provided in this embodiment;

[0038] Figure 5 This is a schematic structural diagram of the first outer side of the box provided in this embodiment. DETAILED DESCRIPTION

[0039] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present application and are not intended to limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.

[0040] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this article, "electrical connection" includes the situation where constituent elements are connected together through an element with some electrical function. "Element with some electrical function" is not particularly limited as long as it can transfer electrical signals between connected constituent elements. "Element with some electrical function" can be, for example, an electrode or wiring, or a switching element such as a transistor, or other functional elements such as a resistor, inductor or capacitor. “Up,” “down,” “left,” “right,” etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0041] In this application, terms such as "upper," "lower," "inner," and "middle" indicate positions or locations based on those shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to specific positions, or to their construction or operation in a specific position.

[0042] The present application discloses an energy storage inverter, which includes a box, a heat dissipation component, a boost inductor, an inverter inductor and a transformer. A power unit is arranged in the box; the heat dissipation component is arranged on a first outer side of the box along a first direction, and the heat dissipation component abuts the power unit; the boost inductor and the inverter inductor are arranged on the first outer side of the box along the first direction, and the boost inductor and the inverter inductor are respectively distributed on both sides of the heat dissipation component, and the boost inductor and the inverter inductor are both electrically connected to the power unit; the transformer is arranged on the first outer side of the body along the first direction, and the transformer and the boost inductor are arranged on the same side, and the transformer is electrically connected to the power unit. The energy storage inverter has a compact layout, is easy to install and has a good heat dissipation effect.

[0043] Next join Figure 1-Figure 5 The energy storage inverter provided in the embodiment of the present application is described below. The energy storage inverter is mainly a low-voltage energy storage inverter. The energy storage inverter includes a housing 10, a heat dissipation assembly 30, a boost inductor 41, an inverter inductor 42, and a transformer 43.

[0044] The box 10 contains a power unit 20.

[0045] The heat dissipation assembly 30 is disposed on a first outer side of the housing 10 along a first direction (X), and the heat dissipation assembly 30 abuts against the power unit 20;

[0046] The boost inductor 41 and the inverter inductor 42 are arranged on the first outer side of the housing 10 along the first direction (X), and the boost inductor 41 and the inverter inductor 42 are respectively distributed on both sides of the heat dissipation assembly 30. The boost inductor 41 and the inverter inductor 42 are both electrically connected to the power unit 20.

[0047] The transformer 43 is disposed on a first outer side of the housing 10 along a first direction (X), and is disposed on the same side as the boost inductor 41 . The transformer 43 is electrically connected to the power unit 20 .

[0048] It should be noted that, in this embodiment, the boost inductor, inverter inductor and transformer are arranged on the first outer side of the box and are respectively located on both sides of the heat dissipation assembly. On the one hand, it is convenient to connect the boost inductor, inverter inductor and transformer, and the installation is convenient; on the other hand, the heat dissipation space of the power unit does not overlap with the heat dissipation space of the boost inductor, inverter inductor and transformer, which is beneficial to improving the overall heat dissipation efficiency of the energy storage inverter. The heat dissipation assembly is in contact with the power unit, so that the heat of the power unit is quickly transferred to the heat dissipation assembly. At the same time, the heat dissipation direction of the heat dissipation assembly is not blocked, so that natural heat dissipation and the natural flow direction of the composite airflow can be achieved.

[0049] refer to Figure 2 In a specific embodiment, the above-mentioned box body 10 includes an end cover 11 and a shell body 12, a housing cavity is configured in the shell body 12, and the power unit 20 is arranged in the housing cavity 13. The shell body 12 has a first side portion 121 opposite to the end cover 11 and a second side portion 122, a third side portion 123, a fourth side portion 124 and a fifth side portion 125 vertically arranged around the first side portion 121. The first outer side portion of the above-mentioned box body 10 specifically refers to the side of the first side portion 121 away from the housing cavity 13. The second outer side portion mentioned below specifically refers to the side of the second side portion away from the housing cavity 13. The second outer side portion of the box body 10 is perpendicular to the first outer side portion of the box body 10.

[0050] refer to Figure 4In a specific embodiment, the boost inductor 41 and the inverter inductor 42 are parallel to each other and staggered; the transformer 43 and the inverter inductor 43 are parallel to each other in the first direction (X). In this embodiment, by arranging the boost inductor 41 and the inverter inductor 42 in parallel and staggered, the first outer portion is located on one side of the boost inductor and has an installation space for arranging the transformer 43, so that the transformer 43 and the boost inductor 41 are parallel to each other in the first direction. In this embodiment, the heat dissipation space generated by the boost inductor 41, the inverter inductor 42 and the inverter 43 does not overlap with the heat dissipation space of the power unit, and there is a certain heat dissipation distance between the heat dissipation space generated by the boost inductor, the inverter inductor and the inverter and the heat dissipation space of the power unit, which is beneficial to improving the overall heat dissipation effect of the energy storage inverter.

[0051] refer to Figure 3 In a specific embodiment, the power unit 20 includes a power board 21, an auxiliary power board 22, a load output board 23 and a DSP control board 24. The DSP control board 24 is plugged into a side surface of the power board 21 away from the first outer portion; the auxiliary power board 22 and the load output board 23 are both stacked on a side surface of the power board 21 away from the first outer portion through pillars, and are respectively distributed on both sides of the DSP control board 24, wherein the auxiliary power board 22 is arranged on the same side as the inverter inductor 42, and the load output board 23 is arranged on the same side as the boost inductor 41. The auxiliary power board 22 and the load output board 23 are stacked on the power board 21 through the pillars, making the internal layout of the inverter compact.

[0052] refer to Figure 4 In one embodiment, the heat dissipation assembly 30 includes a plurality of first heat dissipation fins 31 arranged in parallel and spaced apart, and a heat dissipation channel 32 is formed between two adjacent first heat dissipation fins 31. In order to further improve the heat dissipation efficiency of the heat dissipation assembly, a fan assembly 50 is provided on the first outer side of the box. The fan assembly 50 is used to supply air to the heat dissipation assembly 30 along the first direction (X). By providing the fan assembly 50, the air circulation in the heat dissipation channel 32 can be accelerated, thereby achieving a good heat dissipation effect. Specifically, the fan assembly 50 includes a fan support frame 52 and a plurality of fans 51 arranged on the fan support frame 52. The number of fans 51 is determined by the width of the heat dissipation assembly 50. The longer the width of the heat dissipation assembly 50, the more fans 51 are required. Furthermore, in order to make the air blown by the plurality of fans 51 better flow to the heat dissipation assembly 30, specifically to the heat dissipation channel 32, the fan support frame 42 is arranged on the side away from the box to have an air guide cover 53 extending along the first direction. The air guide cover 53 at least covers a portion of the heat dissipation assembly 30, so that the air blown by the fan 51 is integrated and flows into the heat dissipation channel 32.

[0053] refer to Figure 1 and Figure 3In a specific embodiment, the energy storage inverter also includes a DC input port component 14 and an AC output port component 15. The DC input port component 14 is arranged on the second outer side of the box 10, and the DC input port component 14 is connected to the power unit 20. The DC input port component 14 mainly receives DC power from the photovoltaic panel; the AC output port component is arranged on the second outer side of the box, and the AC output port component is connected to the power unit; the AC output port component 15 is the interface for the inverter to convert DC power into AC power and output it. Specifically, the AC output port component 15 includes a positive output port group and a negative output port, and the DC input port component includes a positive input port 141 and a negative input port 142. A communication connection port 16 is also provided on the second outer side of the box. The communication connection port 16 is located between the DC input port component 14 and the AC output port component 15, and is electrically connected to the power unit 20.

[0054] refer to Figure 3 In one embodiment, the energy storage inverter further includes an input copper busbar assembly 60, which is used to connect the DC input port assembly 14 and the power unit 20. The input copper busbar assembly can replace the traditional wire connection between the DC input port assembly 14 and the power unit 20, further saving layout space within the box and facilitating installation. Specifically, the input copper busbar assembly 60 includes a positive input copper busbar 61 and a negative input copper busbar 62. The first end of the negative input copper busbar 62 is connected to the negative input port 142, and the second end of the negative input copper busbar 62 is connected to the power unit 20. The first end of the positive input copper busbar 61 is connected to the positive input port 141, and the second end of the positive input copper busbar 141 is connected to the power unit 20. A fuse 63 is disposed between the first and second ends of the positive input copper busbar 61. Furthermore, both the positive input copper busbar 61 and the negative input copper busbar 62 are bent. This design improves the support strength of the input copper busbar assembly 60 and facilitates electrical connections at different heights.

[0055] refer to Figure 4 In a specific embodiment, the outer peripheries of the transformer, boost inductor and inverter inductor are all provided with a plurality of fins arranged in parallel and spaced apart. Specifically, the outer periphery of the transformer 43 is provided with a plurality of first fins 431 distributed in parallel and spaced apart, the outer periphery of the boost inductor 41 is provided with a plurality of second fins 411 distributed in parallel and spaced apart, and the outer periphery of the inverter inductor 42 is provided with a plurality of third fins 421 distributed in parallel and spaced apart. By providing fins on the transformer, boost inductor and inverter inductor, the heat dissipation area of ​​the heat dissipation box can be increased, thereby improving the heat dissipation performance of the transformer 43, the boost inductor 41 and the inverter inductor 42.

[0056] refer to Figure 5In a specific embodiment, at least two heat dissipation support frames 71 are arranged on the first outer side of the box along the first direction (X), and the two heat dissipation support frames 71 are respectively distributed on the side of the boost inductor and the inverter inductor away from the heat dissipation component. The heat dissipation support frames are provided with a plurality of heat dissipation holes 711, which are conducive to improving the heat dissipation effect of the transformer 43, the boost inductor 41 and the inverter inductor 42; further, the two heat dissipation support frames 71 are respectively provided with scraper brackets 72 on the side away from the box 10, and the two scraper brackets 72 are connected through the back plate 73 Connection, by setting a scraper bracket and a back plate, the energy storage inverter can be set on the wall by hanging. In order to better hang the energy storage inverter on the wall, connection holes 721 are set on the scraper bracket 72 and the back plate 73. Since the energy storage inverter in this embodiment is a suspended energy storage inverter, the communication connection port 16, the DC input port component 14 and the AC output port component 15 are protected from direct sunlight, thereby reducing material aging of the communication connection port 16, the DC input port component 14 and the AC output port component 15.

[0057] The above embodiments are intended only to illustrate the technical concepts and features of this application. Their purpose is to enable those familiar with the art to understand the content of this application and implement it accordingly. They are not intended to limit the scope of protection of this application. Any equivalent changes or modifications made in accordance with the spirit of this application shall be included in the scope of protection of this application.

Claims

1. An energy storage inverter, characterized in that: include: A box body, wherein a power unit is arranged in the box body; a heat dissipation assembly, disposed on a first outer side of the box along a first direction, and the heat dissipation assembly abuts against the power unit; A boost inductor and an inverter inductor are arranged on a first outer side of the box along the first direction, and the boost inductor and the inverter inductor are respectively distributed on both sides of the heat dissipation component, and the boost inductor and the inverter inductor are both electrically connected to the power unit; A transformer is arranged on a first outer side of the box along the first direction, and the transformer and the boost inductor are arranged on the same side, and the transformer is electrically connected to the power unit.

2. The energy storage inverter according to claim 1, characterized in that: The boost inductor and the inverter inductor are arranged in parallel and staggered with each other; The transformer and the boost inductor are arranged in parallel in a first direction.

3. The energy storage inverter according to claim 1, characterized in that: The power unit includes: a power board; A control board, which is plugged into a surface of the power board on one side away from the first outer side; The auxiliary power supply board and the load output board are stacked on a side surface of the power board away from the first outer portion through pillars, and are respectively distributed on both sides of the control board.

4. The energy storage inverter according to claim 1, characterized in that: Also includes: A fan assembly is arranged on the first outer side of the box body, and the fan assembly is used to supply air to the heat dissipation assembly along the first direction.

5. The energy storage inverter according to claim 1, characterized in that: The heat dissipation assembly includes a plurality of first heat dissipation fins arranged in parallel and at intervals, and a heat dissipation channel is formed between two adjacent heat dissipation fins.

6. The energy storage inverter according to claim 1, characterized in that: Also includes: a DC input port assembly, disposed on the second outer side of the box body and connected to the power unit; The AC output port assembly is arranged on the second outer side of the box body and is connected to the power unit; the second outer side of the box body is perpendicular to the first outer side of the box body.

7. The energy storage inverter according to claim 6, characterized in that: Also includes; Input copper busbar assembly, including positive input copper busbar and negative input copper busbar, The DC input port assembly includes a positive input port and a negative input port; The first end of the negative input copper busbar is connected to the negative input port, the second end of the negative input copper busbar is connected to the power unit, the first end of the positive input copper busbar is connected to the positive input port, the second end of the positive input copper busbar is connected to the power unit, and a fuse is configured between the first end and the second end of the positive input copper busbar.

8. The energy storage inverter according to claim 1, characterized in that: The outer peripheries of the transformer, the boost inductor and the inverter inductor are all provided with a plurality of second heat sinks distributed in parallel and at intervals.

9. The energy storage inverter according to claim 1, characterized in that: Also includes At least two heat dissipation support frames are arranged on the first outer side of the box along the first direction, The two heat dissipation support frames are respectively distributed on a side of the boost inductor and the inverter inductor away from the heat dissipation component.

10. The energy storage inverter according to claim 9, characterized in that: A scraper bracket is provided on each side of the two heat dissipation support frames away from the box body, and the two scraper brackets are connected through a back plate.

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