Assembling structure of photovoltaic inverter with upside-down type upper cover and photovoltaic inverter

Abstract

The embodiment of the utility model relates to the technical field of photovoltaic inverters, and discloses an assembly structure of an upper cover inverted photovoltaic inverter and the photovoltaic inverter.The interior of the assembly structure is used for fixing a wiring terminal and a power board, the wiring terminal and the power board are connected through a wire rod, and the assembly structure comprises a base with an opening, and the opening is formed in the base; the bottom of the base is used for fixing a power board; the upper cover detachably covers the base and is used for sealing the opening of the base; and the side part of the base is also provided with an open hole which is used for fixing the wiring terminal. Through the above mode, the assembly structure provided by the embodiment of the utility model realizes the purposes of avoiding wire waste and reducing the damage risk of the power amplifier board device.

Description

Technical Field

[0001] This application relates to the field of photovoltaic inverter technology, specifically to an assembly structure and a photovoltaic inverter with an inverted top cover. Background Technology

[0002] The existing inverted photovoltaic inverter structure typically includes a base and a top cover. During assembly, the wiring terminals are usually connected to the top cover, and the power board is fixed to the base for heat dissipation. After connecting the wiring terminals and the power board with wires, the top cover is then snapped onto the base to complete the assembly. For a detailed structural diagram of the completed assembly, please refer to Chinese Patent No. CN308584650S.

[0003] However, when assembling this type of assembly structure, the wires between the terminals on the top cover and the power board need to be extended to allow for the wire length to match the snap-fit ​​stroke of the top cover, resulting in wire waste. Furthermore, there is a blind spot when snapping the top cover, making it impossible to see the internal structure. The top cover itself, the terminals on the top cover, the connectors and wires there is a risk of impacting the components on the power board on the base, leading to a decrease in product quality.

[0004] Therefore, how to avoid wasting wires and reduce the risk of damage to power board components has become an urgent technical problem to be solved. Utility Model Content

[0005] In view of the above problems, this application provides an assembly structure and a photovoltaic inverter for a top-mounted inverted photovoltaic inverter. This assembly structure can avoid wire waste and reduce the risk of damage to power board devices.

[0006] According to one aspect of the embodiments of this application, an assembly structure for a top-mounted inverted photovoltaic inverter is provided. The assembly structure is used to fix wiring terminals and a power board inside, and the wiring terminals and the power board are connected by wires. The assembly structure includes: a base with an opening, the bottom of the base for fixing the power board; a top cover that can be detachably covered by the base for closing the opening of the base; and an opening on the side of the base for fixing the wiring terminals.

[0007] Preferably, at least a portion of the first base side among the multiple sides of the base is extended to form a first base side, and an opening is provided on the first base side.

[0008] Preferably, a portion of the second base side among the multiple sides of the base is extended to form a second base side, the second base side is connected to the first base side, and the second base side is the edge on the base adjacent to the first base side.

[0009] Preferably, one side of the second base is connected to the side of the first base, and the other side is sloping.

[0010] Preferably, the side of the second base is integrally formed with the side edge of the second base.

[0011] Preferably, the top cover includes a first top cover side and a second top cover side, wherein the first top cover side and the second top cover side are adjacent sides among multiple sides of the top cover; the second top cover side extends to form a second top cover side surface; the outer wall of the first base side surface is attached to the inner wall of the first top cover side surface, and the outer wall of the second base side surface is attached to the inner wall of the second top cover side surface.

[0012] Preferably, the top cover includes a third top cover side, which extends to form a third top cover side surface. The third top cover side is the side of the top cover that is opposite to the first top cover side among the multiple sides of the top cover. The base includes a third base side, which is the side of the base that is opposite to the first base side among the multiple sides of the base. The outer wall of the third base side is attached to the inner wall of the third top cover side surface.

[0013] Preferably, the assembly structure further includes a screw, a first fixing hole is provided on the side of the second upper cover, and a second fixing hole is provided on the side of the second base; the screw passes through the first fixing hole and the second fixing hole in sequence to fix the upper cover to the base.

[0014] Preferably, the bottom inner wall of the base is provided with multiple mounting holes for fixing the power board, and the bottom outer wall of the base is also formed with a heat dissipation structure for dissipating heat from the power board.

[0015] According to another aspect of the embodiments of this application, a photovoltaic inverter is provided, which includes an assembly structure as described in any of the above embodiments; a terminal block fixed to an opening on the side of the assembly structure; a power board fixed to the bottom of the assembly structure; and a wire, one end of which is connected to the terminal block and the other end of which is connected to the power board.

[0016] This embodiment of the application provides an opening on the side of the base, and fixes the wiring terminal through the opening. This allows the wires connecting the wiring terminal and the power board to not need to move in accordance with the travel of the top cover when the base is closed. This eliminates the need to reserve length for the wires to match the travel of the top cover, thus avoiding wire waste. Furthermore, since there are no fixed wiring terminals or other structures on the top cover when it is closed, the structures on the top cover will not impact the components on the power board on the bottom cover during the closing process, thereby reducing the risk of damage to the power board components.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0019] Figure 1 A perspective view of the assembly structure provided in the embodiment of this application is shown;

[0020] Figure 2 A perspective view of the assembly structure provided in an embodiment of this application is shown from another angle;

[0021] Figure 3 An exploded view of the assembly structure provided in an embodiment of this application is shown;

[0022] Figure 4 An exploded view of the assembly structure provided in an embodiment of this application is shown from another angle.

[0023] The reference numerals in the detailed embodiments are as follows:

[0024] 1. Assembly structure;

[0025] 10. Top cover; 11. First top cover side; 12. Second top cover side; 121. Second top cover side; 122. First fixing hole; 13. Third top cover side; 131. Third top cover side;

[0026] 20. Base; 21. Side of the first base; 211. Side of the first base; 22. Side of the second base; 221. Side of the second base; 222. Second fixing hole; 23. Side of the third base; 24. Opening; 25. Hole; 26. Mounting hole; 27. Heat dissipation structure. Detailed Implementation

[0027] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0032] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0033] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] Please see Figures 1-4 This application provides an assembly structure 1 for a top-mounted inverted photovoltaic inverter. The assembly structure 1 is used to fix wiring terminals and a power board inside. The wiring terminals and the power board are connected by wires. The assembly structure 1 includes: a base 20 with an opening 24, the bottom of which is used to fix the power board; a top cover 10 that can be detachably covered by the base 20 to close the opening 24 of the base 20; and an opening 25 on the side of the base 20 for fixing the wiring terminals.

[0036] During assembly, the power board can be fixed to the mounting hole 26 of the base 20 first. In actual use, the power board can be cooled by the heat dissipation structure 27. Connect the wiring terminals to the opening 25 of the base 20. After assembling the wiring terminals and the power board, connect the wiring terminals and the power board with wires. Finally, fasten the top cover 10 to the base 20, align the first fixing hole 122 and the second fixing hole 222, and screw the bolts into the first fixing hole 122 and the second fixing hole 222 in sequence to fix the top cover 10 to the base 20.

[0037] Through the above process, all electronic components can be arranged on the base 20, instead of having some on the base 20 and the other on the top cover 10.

[0038] Furthermore, to improve the ease of installation of power boards, terminals, and wires, at least a portion of the first base side 21 among the multiple sides of the base 20 is extended to form a first base side 211, and an opening 25 is provided on the first base side 211; preferably, a portion of the second base side 22 among the multiple sides of the base 20 is extended to form a second base side 221, the second base side 221 is connected to the first base side 211, and the second base side 22 is the side of the base 20 adjacent to the first base side 21.

[0039] like Figure 3 and Figure 4 As shown, the first base side 211 and the second base side 221 on the base 20 protrude significantly from the mounting plane on the base 20 where mounting holes 26 are provided. The mounting plane is used to mount the power board. The length of the first base side 211 is the same as the length of the first base side 21, allowing multiple openings 25 to be formed on the first base side 211, reducing the difficulty of drilling the openings 25. One side of the second base side 221 is connected to the first base side 211, while the other side is sloped. This improves the stability of the first base side 211. The second base side 221 can also be integrally formed with the second base side 22 to increase the connection strength of the second base side 221 and reduce installation difficulty. Furthermore, if the base 20 and the top cover 10 extend to form sides, the corresponding sides can be integrally formed with the sides.

[0040] Furthermore, while improving the stability of the first base side 211 through the second base side 221, the second base side 22, which is away from the first base side 21, and the third base side 23 form an operating entrance and operating space for the power board, terminals, and wires, so as to facilitate the installation and operation of components such as the power board, terminals, and wires.

[0041] Preferably, the top cover 10 includes a first top cover side 11 and a second top cover side 12, wherein the first top cover side 11 and the second top cover side 12 are adjacent sides among the multiple sides of the top cover 10; the second top cover side 12 extends to form a second top cover side 121; the outer wall of the first base side 211 is attached to the inner wall of the first top cover side 11, and the outer wall of the second base side 221 is attached to the inner wall of the second top cover side 121, so as to improve the stability of the connection between the top cover 10 and the base 20.

[0042] Preferably, the top cover 10 includes a third top cover side 13, which extends to form a third top cover side 131. The third top cover side 13 is the side of the top cover 10 that is opposite to the first top cover side 11 among the multiple sides. The base 20 includes a third base side 23, which is the side of the base 20 that is opposite to the first base side 21 among the multiple sides. The outer wall of the third base side 23 is attached to the inner wall of the third top cover side 131.

[0043] In this embodiment, the layout of the terminals (and connectors) of the snap-on top cover 10 is improved by placing them on the base 20. The side of the base 20 extends upward to form a first base side 211 for fixing the terminals (and connectors). The other three sides are removed (two second base sides 221 are retained). At the same time, the structure for fixing the terminals is removed from the side of the top cover 10, and the other three sides (second top cover side 121 and two third top cover sides 131) extend to cooperate with the base 20. This retains the advantages of the previous snap-on top cover while improving its defects.

[0044] Preferably, the assembly structure 1 further includes a screw, a first fixing hole 122 is provided on the side 121 of the second upper cover, and a second fixing hole 222 is provided on the side 221 of the second base; the screw passes through the first fixing hole 122 and the second fixing hole 222 in sequence to fix the upper cover 10 to the base 20, thereby making the fixing method of the upper cover 10 and the base 20 relatively simple.

[0045] This embodiment of the application provides an opening 25 on the side of the base 20, and fixes the wiring terminal through the opening 25. This allows the wires connecting the wiring terminal and the power board to not need to move in accordance with the travel of the upper cover 10 when the base 20 is closed, so that the wires do not need to be reserved for the travel of the upper cover 10, thereby avoiding wire waste. In addition, when the upper cover 10 is closed, there are no structures such as wiring terminals fixed on the upper cover 10, which can prevent the structures on the upper cover 10 from hitting the components on the power board on the base 20 during the closing process, thereby reducing the risk of damage to the power board components. Furthermore, the assembly structure 1 provided in this embodiment of the application has a simple structure, does not require production jigs, facilitates manufacturing and assembly, and reduces manufacturing costs.

[0046] According to another aspect of the embodiments of this application, a photovoltaic inverter is also provided, which includes: an assembly structure 1 as described in any of the above embodiments; a wiring terminal fixed to an opening 25 on the side of the assembly structure 1; a power board fixed to the bottom of the assembly structure 1; and a wire, one end of which is connected to the wiring terminal and the other end of which is connected to the power board.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An assembly structure of an upper cover inverted photovoltaic inverter, an inside of the assembly structure being used for fixing a terminal and a power board, the terminal and the power board being connected by a wire, the assembly structure comprising: a base, the base having an opening, a bottom of the base being used for fixing the power board; an upper cover, the upper cover being separably closed to the base, the upper cover being used for closing the opening of the base; characterized in that a side of the base is further provided with an opening hole, the opening hole being used for fixing the terminal.

2. The assembled structure of claim 1, wherein, at least part of a first side edge of the base is extended to form a first side surface of the base, the opening hole being arranged on the first side surface of the base.

3. The assembled structure of claim 2, wherein, part of a second side edge of the base is extended to form a second side surface of the base, the second side surface of the base being connected with the first side surface of the base, the second side edge of the base being an edge of the base adjacent to the first side edge of the base.

4. The assembled structure of claim 3, wherein, one side of the second side surface of the base is connected with the first side surface of the base, and the other side of the second side surface of the base is in a slope shape.

5. The assembled structure of claim 3, wherein, the second side surface of the base is integrally formed with the second side edge of the base.

6. The assembled structure of claim 3, wherein, the upper cover comprises a first upper cover side edge and a second upper cover side edge, the first upper cover side edge and the second upper cover side edge being adjacent edges of a plurality of side edges of the upper cover; the second upper cover side edge is extended to form a second upper cover side surface; an outer wall of the first side surface of the base is fitted to an inner wall of the first upper cover side edge, and an outer wall of the second side surface of the base is fitted to an inner wall of the second upper cover side surface.

7. The assembled structure of claim 6, wherein, the upper cover comprises a third upper cover side edge, the third upper cover side edge is extended to form a third upper cover side surface, the third upper cover side edge being an edge of the upper cover opposite to the first upper cover side edge; the base comprises a third base side edge, the third base side edge being a side edge of the base opposite to the first base side edge; an outer wall of the third base side edge is fitted to an inner wall of the third upper cover side surface.

8. The assembled structure of claim 6, wherein, the assembly structure further comprises a screw rod, the second upper cover side surface is provided with a first fixing hole, and the second base side surface is provided with a second fixing hole; the screw rod penetrates the first fixing hole and the second fixing hole in sequence, and fixes the upper cover to the base.

9. The assembled structure of claim 1, wherein, an inner wall of the bottom of the base is provided with a plurality of mounting holes, the mounting holes being used for fixing the power board, and an outer wall of the bottom of the base is further formed with a heat dissipation structure, the heat dissipation structure being used for dissipating heat of the power board.

10. A photovoltaic inverter, characterized by the photovoltaic inverter comprises: the assembly structure according to any one of claims 1 to 9; a terminal, the terminal being fixed to the opening hole of the side of the assembly structure; a power board, the power board being fixed to the bottom of the assembly structure; a wire, one end of the wire being connected with the terminal, and the other end of the wire being connected with the power board.

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