Battery inverter system and photovoltaic system

Abstract

The utility model is applicable to the technical field of photovoltaic inverter equipment, and provides a battery inverter system and a photovoltaic system.The battery inverter system comprises a photovoltaic inverter, a battery module and a connecting piece, the photovoltaic inverter comprises a first shell, an input connector and positioning pieces, the positioning pieces are arranged at the two opposite ends of a first side face, and the battery module is connected with the first shell. The battery module comprises a second shell and an output connector, the connecting pieces are connected with the photovoltaic inverter and the battery module, the connecting pieces are arranged at the two opposite ends of the second side face, the connecting pieces form inserting grooves in the second side face, and the multiple positioning pieces are inserted into the inserting grooves. A plurality of positioning pieces are inserted into the insertion grooves, and one positioning piece abuts against one connecting piece, so that the relative displacement of the battery module and the photovoltaic inverter is limited. Therefore, when the battery module and the photovoltaic inverter are connected, connection failure of the output connector and the input connector caused by deviation is not easy to occur, the assembly success rate of the battery module and the photovoltaic inverter is improved, and the assembly efficiency of connection of the photovoltaic inverter and the battery module is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic inverter equipment, and particularly relates to a battery inverter system and a photovoltaic system. Background Art

[0002] With the increasingly severe global energy crisis, the demand for renewable energy is becoming more and more urgent. As the most abundant renewable energy, solar energy has received extensive attention and use. In the prior art, photovoltaic modules are usually used to absorb solar energy and convert it into electric energy. A photovoltaic system usually includes devices such as a battery module and a photovoltaic inverter. The photovoltaic inverter is connected to the battery module and converts the direct current in the battery module into alternating current for people's daily production and life. However, if the connection between the battery module and the photovoltaic inverter is unstable, it will directly reduce the conversion efficiency of the photovoltaic inverter and may pose a risk of electric leakage.

[0003] In the prior art, a housing with a positioning function is usually provided on the periphery of the output connector of the battery module and the input connector of the photovoltaic inverter. However, only by connecting the battery module and the photovoltaic inverter through a housing with a positioning function, the battery module and the photovoltaic inverter are prone to relative movement, making it easy for the output connector and the input connector to be inaccurately positioned when connected, increasing the assembly difficulty of the battery module and the photovoltaic inverter, reducing the assembly success rate and efficiency of the photovoltaic inverter and the battery module, and having poor connection stability. Summary of the Utility Model

[0004] An embodiment of the utility model provides a battery inverter system, aiming to improve the assembly success rate and efficiency of the photovoltaic inverter and the battery module, and improve the connection stability between the photovoltaic inverter and the battery module.

[0005] The embodiment of the utility model is implemented as follows. A battery inverter system includes:

[0006] A photovoltaic inverter, including a first housing having a first side surface, an input connector provided on the first side surface, and a positioning member provided on the first side surface, and the positioning members are provided at both opposite ends of the first side surface;

[0007] A battery module, including a second housing having a second side surface and an output connector provided on the second side surface, and the second side surface is disposed opposite to the first side surface;

[0008] A connecting member connecting the photovoltaic inverter and the battery module, and the connecting members are provided at both opposite ends of the second side surface. The connecting members form a plugging groove on the second side surface, and a plurality of the positioning members are plugged into the plugging groove, and one of the positioning members abuts against one of the connecting members.

[0009] Further, the connecting member includes a first connecting portion and a second connecting portion connected to the first connecting portion. One of the first connecting portions is connected to the second housing, and one of the second connecting portions is detachably connected to one of the positioning members.

[0010] Further, the first connecting portion is provided with a plurality of first through holes, and the second housing is provided with a plurality of first threaded holes. One of the first through holes corresponds to one of the first threaded holes. The plurality of first through holes and the plurality of first threaded holes are used for screws to pass through, so that the first connecting portion is connected to the second housing. The second connecting portion is provided with a plurality of second through holes, and each of the positioning members is provided with a plurality of second threaded holes. One of the second through holes corresponds to one of the second threaded holes. The plurality of second through holes and the plurality of second threaded holes are used for the screws to pass through, so that the second connecting portion is detachably connected to one of the positioning members.

[0011] Further, the second connecting portion includes a connecting plate connected to the positioning member. The second through holes are provided in the connecting plate, and a plurality of reinforcing plates are provided on the peripheral side of the connecting plate.

[0012] Further, the plurality of first through holes and the plurality of second through holes are both configured as waist-shaped holes.

[0013] Further, a positioning groove is formed on one side of the positioning member opposite to one of the connecting members, and one of the second connecting portions is correspondingly inserted into the positioning groove.

[0014] Further, the photovoltaic inverter further includes a first protective shell disposed around the periphery of the input connector, and the battery module further includes a second protective shell disposed around the periphery of the output connector. The first protective shell is sleeved on the outer peripheral surface of the second protective shell.

[0015] Further, one of the positioning members is connected below the first protective shell, and the outer shell of the first protective shell extends downward toward the photovoltaic inverter to form the positioning member.

[0016] Further, each of the positioning members is provided with a cavity.

[0017] The embodiment of the present invention further provides a photovoltaic system, including the battery inverter system described above.

[0018] In the battery inverter system of the present utility model, positioning members are respectively provided at opposite ends of the first side surface of the photovoltaic inverter, and connecting members are respectively provided at opposite ends of the second side surface of the battery module, so that the connecting members form plug-in slots on the second side surface for the positioning members to be inserted into. When the battery module is connected to the photovoltaic inverter, a plurality of positioning members are inserted into the plug-in slots, and one positioning member abuts against one connecting member to limit the relative displacement between the battery module and the photovoltaic inverter. When connecting the battery module and the photovoltaic inverter, it is not easy to cause the connection failure of the output connector and the input connector due to offset, making the connection between the battery module and the photovoltaic inverter more precise, and improving the assembly success rate and quality of the battery module and the photovoltaic inverter. In addition, by providing the positioning members and the connecting members, when the connection between the positioning members and the connecting members is completed, the output connector and the input connector are also connected, improving the assembly efficiency of the connection between the photovoltaic inverter and the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is an exploded structural schematic diagram of the battery inverter system provided by an embodiment of the present utility model;

[0020] Figure 2 FIG. 10 is an overall structural schematic diagram of the battery inverter system provided by an embodiment of the present utility model;

[0021] Figure 3 FIG. 14 is a structural schematic diagram of the photovoltaic inverter provided by an embodiment of the present utility model;

[0022] Figure 4 FIG. 18 is a structural schematic diagram of the connecting member provided by an embodiment of the present utility model;

[0023] Figure 5 FIG. 22 is a top view of the battery inverter system provided by an embodiment of the present utility model;

[0024] Figure 6 is Figure 5 a cross-sectional view taken along line A-A in FIG. 28;

[0025] Figure 7 FIG. 32 is a structural schematic diagram of the photovoltaic system provided by an embodiment of the present utility model.

[0026] Description of the reference numerals: 100, photovoltaic inverter; 110, first housing; 111, first side surface; 112, first threaded hole; 120, input connector; 130, positioning member; 131, second threaded hole; 132, cavity; 133, positioning groove; 140, first protective shell; 200, battery module; 210, second housing; 211, second side surface; 220, second protective shell; 230, output connector; 300, connecting member; 310, first connecting portion; 311, first through hole; 320, second connecting portion; 321, second through hole; 322, connecting plate; 323, reinforcing plate; 400, machine body. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated in the description of the orientation and positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0031] In the prior art, a housing with a positioning function is usually provided on the periphery of the output connector of the battery module and the input connector of the photovoltaic inverter. However, when connecting the battery module and the photovoltaic inverter only through the housing with a positioning function, since the sizes of the output connector and the input connector are small and it is not easy to observe the connection part when connecting the battery module and the photovoltaic inverter, the positioning is likely to be inaccurate, resulting in difficulty in connecting the output connector to the input connector, and reducing the assembly success rate and efficiency of the photovoltaic inverter and the battery module. For this reason, the present application provides a battery inverter system, aiming to improve the assembly success rate and efficiency of the photovoltaic inverter and the battery module, and improve the connection stability between the photovoltaic inverter and the battery module.

[0032] Please refer toFigures 1 to 4 A battery inverter system provided by an embodiment of the present utility model includes a photovoltaic inverter 100, a battery module 200, and a connecting member 300. The photovoltaic inverter 100 includes a first housing 110 having a first side surface 111, an input connector 120 provided on the first side surface 111, and a positioning member 130 provided on the first side surface 111. Positioning members 130 are provided at both opposite ends of the first side surface 111. The battery module 200 includes a second housing 210 having a second side surface 211 and an output connector 230 provided on the second side surface 211. The second side surface 211 is disposed opposite to the first side surface 111. The connecting member 300 connects the photovoltaic inverter 100 and the battery module 200. Connecting members 300 are provided at both opposite ends of the second side surface 211. The connecting member 300 forms a plugging groove on the second side surface 211, and a plurality of positioning members 130 are plugged into the plugging groove, and one positioning member 130 abuts against one connecting member 300.

[0033] In this way, positioning members 130 are provided at both opposite ends of the first side surface 111 of the photovoltaic inverter 100, and connecting members 300 are provided at both opposite ends of the second side surface 211 of the battery module 200, so that the connecting member 300 forms a plugging groove on the second side surface 211 for the positioning member 130 to be plugged into. When the battery module 200 is connected to the photovoltaic inverter 100, a plurality of positioning members 130 are plugged into the plugging groove, and one positioning member 130 abuts against one connecting member 300 to limit the relative displacement between the battery module 200 and the photovoltaic inverter 100. Compared with the prior art in which the battery module 200 and the photovoltaic inverter 100 are connected only by the output connector 230 and the input connector 120, when the battery module 200 and the photovoltaic inverter 100 are connected, it is easy to deviate, resulting in the failure of the connection between the battery module 200 and the photovoltaic module. However, the cooperation between the positioning member 130 and the connecting member 300 in the present application makes it not easy to deviate when connecting the battery module 200 and the photovoltaic inverter 100, reducing the possibility of the connection failure between the output connector 230 and the input connector 120, making the connection between the battery module 200 and the photovoltaic inverter 100 more accurate, and improving the assembly success rate and quality of the battery module 200 and the photovoltaic inverter 100. And by providing the positioning member 130 and the connecting member 300, while the connection between the positioning member 130 and the connecting member 300 is completed, the output connector 230 and the input connector 120 are also connected, improving the assembly efficiency of the connection between the photovoltaic inverter 100 and the battery module 200.

[0034] Optionally, in one embodiment, the connecting member 300 includes a first connecting portion 310 and a second connecting portion 320 connected to the first connecting portion 310. One first connecting portion 310 is connected to the second housing 210, and one second connecting portion 320 is detachably connected to one positioning member 130 correspondingly.

[0035] In this way, please refer to againFigures 5 to 6 Each first connection portion 310 of each connecting member 300 is connected to the second housing 210 to connect the connecting member 300 to the battery module 200. The second connection portion 320 of the connecting member 300 is detachably connected to a positioning member 130 correspondingly, so that the connecting member 300 and the positioning member 130 are detachably connected, enhancing the connection strength between the positioning member 130 and the connecting member 300, thereby improving the connection stability between the battery module 200 and the photovoltaic inverter 100, making it difficult for relative movement to occur between the battery module 200 and the photovoltaic inverter 100, and reducing the possibility of deviation between the battery module 200 and the photovoltaic inverter 100, which may cause the connection failure or leakage between the input connector 120 and the output connector 230. Moreover, the positioning member 130 and the connecting member 300 are detachably connected, facilitating the installation and disassembly between the positioning member 130 and the connecting member 300, that is, facilitating the disassembly between the battery module 200 and the photovoltaic inverter 100, and facilitating the maintenance and replacement of the components of the battery module 200 and the photovoltaic inverter 100.

[0036] Optionally, in an embodiment, a plurality of first through holes 311 are formed in the first connection portion 310, a plurality of first threaded holes 112 are formed in the second housing 210, one first through hole 311 corresponds to one first threaded hole 112, and the plurality of first through holes 311 and the plurality of first threaded holes 112 are used for screws to pass through, so that the first connection portion 310 is connected to the second housing 210. A plurality of second through holes 321 are formed in the second connection portion 320, a plurality of second threaded holes 131 are formed in each positioning member 130, one second through hole 321 corresponds to one second threaded hole 131, and the plurality of second through holes 321 and the plurality of second threaded holes 131 are used for screws to pass through, so that the second connection portion 320 is detachably connected to a positioning member 130 correspondingly.

[0037] Thus, a first through hole 311 for a screw to pass through is formed in the first connecting portion 310, and a first threaded hole 112 corresponding to the first through hole 311 is formed in the second housing 210, so as to fix the first connecting portion 310 to the second housing 210 by screws, realizing the installation of the connecting member 300 on the battery module 200. And a plurality of first through holes 311 are formed, enhancing the installation stability of the connecting member 300 on the battery module 200 and making the connecting member 300 not easily shift on the battery module 200. A second through hole 321 for a screw to pass through is formed in the second connecting portion 320, and a second threaded hole 131 corresponding to the second through hole 321 is formed in the positioning member 130, so as to detachably connect the second connecting portion 320 to the positioning member 130 by screws, realizing the connection between the connecting member 300 and the positioning member 130. And a plurality of second through holes 321 are formed, enhancing the connection stability between the connecting member 300 and the positioning member 130, so that the battery module 200 and the photovoltaic inverter 100 are not easily shifted, and improving the connection strength between the battery module 200 and the photovoltaic inverter 100.

[0038] Optionally, in another embodiment, there can be various connection methods between the positioning member 130 and the connecting member 300, and between the positioning member 130 and the battery module 200. The positioning member 130 can also be welded to the battery module 200. And the connection method by screws is convenient for the installation and disassembly of the positioning member 130 on the battery module 200, facilitating the subsequent replacement and repair of the positioning member 130. The positioning member 130 can also be connected to the connecting member 300 by welding. Although the connection between the positioning member 130 and the connecting member 300 can be completed, compared with the connection method by screws, the cost is higher and it is not convenient for the subsequent repair and replacement of the positioning member 130.

[0039] Optionally, in one embodiment, the second connecting portion 320 includes a connecting plate 322 connected to the positioning member 130, the second through hole 321 is formed in the connecting plate 322, and a plurality of reinforcing plates 323 are provided on the periphery of the connecting plate 322.

[0040] Thus, a plurality of reinforcing plates 323 are provided on the periphery of the connecting plate 322 of the second connecting portion 320 to enhance the structural strength of the connecting plate 322, making the connecting plate 322 not easily bend or warp, improving the connection stability between the connecting member 300 and the positioning member 130, and moreover enhancing the overall structural strength of the connecting member 300 and the connection stability between the battery module 200 and the photovoltaic inverter 100.

[0041] Optionally, in another embodiment, there can be various ways to enhance the connection stability between the connecting member 300 and the positioning member 130. The thickness of the connecting plate 322 can also be increased to enhance the structural strength of the second connecting portion 320, thereby enhancing the connection stability between the connecting member 300 and the positioning member 130.

[0042] Optionally, in one embodiment, the plurality of first through holes 311 and the plurality of second through holes 321 are both configured as kidney-shaped holes.

[0043] In this way, by configuring the plurality of first through holes 311 as kidney-shaped holes, the first through holes 311 have sufficient adjustment space in length for the screw to move up and down within the first through holes 311 to correspondingly connect to the first threaded holes 112. This reduces the possibility that the second housing 210 fails to connect the screw accurately to the first threaded holes 112 due to design errors, thereby resulting in the failure of the connection between the connecting member 300 and the second housing 210. By configuring the plurality of second through holes 321 as kidney-shaped holes, the second through holes 321 have sufficient adjustment space in length for the screw to move up and down within the second through holes 321 to correspondingly connect to the second threaded holes 131. This reduces the possibility that the positioning member 130 fails to connect the screw accurately to the second threaded holes 131 due to design errors, thereby resulting in the failure of the connection between the connecting member 300 and the positioning member 130.

[0044] Optionally, in one embodiment, a positioning groove 133 is formed on one side of the positioning member 130 opposite to a connecting member 300, and a second connecting portion 320 is correspondingly inserted into the positioning groove 133.

[0045] In this way, a positioning groove 133 is provided on one side of the positioning member 130 opposite to the connecting member 300. When the battery module 200 is connected to the photovoltaic inverter 100, at least the second connecting portion 320 of the positioning member 130 is correspondingly inserted into the positioning groove 133, initially enhancing the connection strength between the positioning member 130 and the connecting member 300. On the one hand, the positioning member 130 and the connecting member 300 are initially fixed, enabling the output connector 230 and the input connector 120 to be accurately docked, improving the assembly quality of the battery module 200 and the photovoltaic inverter 100; on the other hand, it is not easy for a large relative movement to occur between the positioning member 130 and the connecting member 300, facilitating the subsequent connection and fixation between the positioning member 130 and the connecting member 300, and improving the assembly efficiency of the battery module 200 and the photovoltaic inverter 100.

[0046] Optionally, in another embodiment, positioning grooves 133 can be formed on each connecting member 300 to further improve the assembly success rate of the battery module 200 and the photovoltaic inverter 100; alternatively, positioning grooves 133 can be formed only on one connecting member 300 to save the production cost of forming the positioning grooves 133.

[0047] Optionally, in one embodiment, the photovoltaic inverter 100 further includes a first protective shell 140 disposed around the periphery of the input connector 120, and the battery module 200 further includes a second protective shell 220 disposed around the periphery of the output connector 230, and the first protective shell 140 is sleeved on the outer peripheral surface of the second protective shell 220.

[0048] Thus, a first protective case 140 is circumferentially arranged around the input connector 120 to reduce the possibility of damage to the input connector 120 caused by collision with the battery module 200 or other objects; a second protective case 220 is circumferentially arranged around the output connector 230 to reduce the possibility of damage to the output connector 230 caused by collision with the photovoltaic inverter 100 or other objects. The first protective case 140 is sleeved on the outer peripheral surface of the second protective case 220, so that the output connector 230 and the input connector 120 are protected from collision with other objects and damaged, and the connection between the first protective case 140 and the second protective case 220 enhances the connection stability between the output connector 230 and the input connector 120, and can also improve the docking accuracy between the output connector 230 and the input connector 120.

[0049] It is worth noting that the materials of the first protective case 140 and the second protective case 220 are both configured as insulating materials to reduce the possibility of electric leakage at the connection between the battery module 200 and the photovoltaic inverter 100, and improve the operating stability of the battery module 200 and the photovoltaic inverter 100.

[0050] Optionally, in an embodiment, a positioning member 130 is connected below the first protective case 140, and the outer shell of the first protective case 140 extends downward toward the photovoltaic inverter 100 to form the positioning member 130.

[0051] Thus, a positioning member 130 arranged below the first protective case 140 is formed by the extension of the shell of the first protective case 140, so that the positioning member 130 and the first protective case 140 are integrally formed, saving the mold development cost of the positioning member 130 arranged below the first protective case 140, and reducing the occupied space of the positioning member 130 on the first housing 110.

[0052] Optionally, in an embodiment, each positioning member 130 is provided with a cavity 132.

[0053] Thus, each positioning member 130 is provided with a cavity 132. On the one hand, it can ensure that the positioning member 130 has high structural strength. On the other hand, it reduces the material for making the positioning member 130 and saves the production cost of the positioning member 130.

[0054] Optionally, the structural form of the positioning member 130 can be various, and the positioning member 130 can also be configured as a plate member fixed to the first side surface 111, as long as the connection between the positioning member 130 and the connecting member 300 can be realized.

[0055] Please refer to Figure 7, the embodiment of the present utility model further provides a photovoltaic system, which includes a body 400 and the aforementioned battery inverter system. For the specific structure of the battery inverter system, refer to the above embodiment. Since this photovoltaic system adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated one by one here.

[0056] It can be understood that those skilled in the art can, under the guidance of the above embodiments, combine various implementation manners in the above embodiments to obtain technical solutions of various implementation manners.

[0057] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A battery inverter system, characterized in that, Comprising: A photovoltaic inverter, including a first housing having a first side surface, an input connector provided on the first side surface, and a positioning member provided on the first side surface, with the positioning members provided at both opposite ends of the first side surface; A battery module, including a second housing having a second side surface, an output connector provided on the second side surface, and the second side surface is arranged opposite to the first side surface; A connecting member connecting the photovoltaic inverter and the battery module, with the connecting members provided at both opposite ends of the second side surface, the connecting members forming a plugging groove on the second side surface, and a plurality of the positioning members being plugged into the plugging groove, and one of the positioning members being in contact with one of the connecting members.

2. The battery inverter system according to claim 1, wherein, The connecting member includes a first connecting portion and a second connecting portion connected to the first connecting portion, one of the first connecting portions being connected to the second housing, and one of the second connecting portions being correspondingly detachably connected to one of the positioning members.

3. The battery inverter system according to claim 2, characterized in that, The first connecting portion is provided with a plurality of first through holes, the second housing is provided with a plurality of first threaded holes, one of the first through holes corresponding to one of the first threaded holes, and the plurality of first through holes and the plurality of first threaded holes are used for a screw to pass through to connect the first connecting portion to the second housing. The second connecting portion is provided with a plurality of second through holes, and each of the positioning members is provided with a plurality of second threaded holes, one of the second through holes corresponding to one of the second threaded holes, and the plurality of second through holes and the plurality of second threaded holes are used for the screw to pass through to make the second connecting portion correspondingly detachably connected to one of the positioning members.

4. The battery inverter system according to claim 3, wherein, The second connecting portion includes a connecting plate connected to the positioning member, the second through holes are provided on the connecting plate, and a plurality of reinforcing plates are provided on the peripheral side of the connecting plate.

5. The battery inverter system according to claim 3, wherein The plurality of first through holes and the plurality of second through holes are all configured as waist-shaped holes.

6. The battery inverter system according to claim 2, wherein A positioning groove is provided on one side of the positioning member opposite to one of the connecting members, and one of the second connecting portions is correspondingly plugged into the positioning groove.

7. The battery inverter system according to claim 1, wherein The photovoltaic inverter further includes a first protective shell provided around the periphery of the input connector, and the battery module further includes a second protective shell provided around the periphery of the output connector, and the first protective shell is sleeved on the outer peripheral surface of the second protective shell.

8. The battery inverter system according to claim 7, wherein One of the positioning members is connected below the first protective shell, and the outer shell of the first protective shell extends downward towards the photovoltaic inverter to form the positioning member.

9. The battery inverter system according to claim 1, wherein, Each of the positioning members is provided with a cavity.

10. A photovoltaic system, characterized in that, Including the battery inverter system according to any one of claims 1 to 9.

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