Sealing structure of micro inverter and micro inverter

Abstract

The embodiment of the utility model relates to the technical field of miniature inverters, and discloses a sealing structure of a miniature inverter and the miniature inverter, and the sealing structure comprises a housing which comprises a plurality of side walls and an opening, and the plurality of side walls form the opening in an enclosing manner; the cover plate is used for sealing the opening; a sealing groove is formed in the cover plate and used for being connected with the side walls in a clamped mode. According to the embodiment of the invention, the size of the shell of the micro inverter is reduced.

Description

Technical Field

[0001] This application relates to the field of microinverter technology, specifically to a sealing structure for a microinverter and a microinverter. Background Technology

[0002] Existing micro inverters, such as the Chinese patent with publication number "CN219833968U", typically employ a sealing method where a flange is provided on the top of the side wall of the casing, a sealing groove is opened on the flange, and a raised strip is formed on the cover plate, which is then engaged with the sealing groove.

[0003] In the above method, a sealing groove needs to be opened on the flange face, and the sealing groove and the flange face are both located on the same plane on the housing. Under the premise of ensuring sufficient space for internal components, the flange face and the sealing groove need to have a certain size, resulting in a relatively large overall size of the housing.

[0004] Therefore, how to reduce the size of the micro inverter casing has become a technical problem that urgently needs to be solved. Utility Model Content

[0005] In view of the above problems, embodiments of this application provide a sealing structure for a micro inverter and a micro inverter, wherein the housing size in the sealing structure is small.

[0006] According to one aspect of the embodiments of this application, a sealing structure for a micro inverter is provided, the sealing structure comprising: a housing, the housing including a plurality of side walls and an opening, the plurality of side walls surrounding to form the opening; a cover plate for closing the opening; the cover plate having a sealing groove for engaging the plurality of side walls.

[0007] Preferably, the sealing structure further includes fasteners; a mounting part is provided on the side wall of the housing, and the mounting part has mounting holes; a through hole is provided on the cover plate; when the side wall of the housing is engaged with the sealing groove, the mounting holes are aligned with the through holes, and the fasteners are used to pass through the through holes and connect with the mounting holes to fix the cover plate to the housing.

[0008] Preferably, the mounting hole is a threaded hole, and the fastener is a screw, with the screw shank passing through the through hole and being screwed into the threaded hole.

[0009] Preferably, the connection between adjacent side walls on the housing is recessed into the housing to form an arc surface, and the mounting component is located at the arc surface.

[0010] Preferably, the mounting component includes a threaded portion; the inner wall of the threaded portion has a threaded hole, and the outer wall of the threaded portion extends to form a reinforcing portion, which is connected to the arc surface.

[0011] Preferably, the reinforcing portion includes a first reinforcing portion and a second reinforcing portion; the first reinforcing portion is located at the top of the threaded portion and is connected to the arc surface and the two side walls forming the arc surface; the second reinforcing portion extends from the top of the threaded portion to the bottom of the threaded portion and is connected to the arc surface.

[0012] Preferably, the first reinforcing part, the second reinforcing part, the threaded part, and the arc surface are integrally formed.

[0013] Preferably, the sealing groove is coated with sealant.

[0014] Preferably, the cover plate is made of plastic.

[0015] According to another aspect of the embodiments of this application, a microinverter is provided, which includes the sealed structure as described in any of the above embodiments.

[0016] This application embodiment provides a sealing groove on the cover plate and removes the flange face at the top of the housing side wall, directly snapping the housing side wall onto the sealing groove on the cover plate. This reduces the size of the housing by miniaturizing the required dimensions of the sealing groove and flange face on the flange surface.

[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 sealing structure provided in an embodiment of this application is shown;

[0020] Figure 2 An exploded view of the sealing structure provided in an embodiment of this application is shown;

[0021] Figure 3 The embodiments provided in this application are shown. Figure 2 Enlarged view of section A;

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

[0023] Figure 5 The embodiments provided in this application are shown. Figure 4Enlarged view of section B.

[0024] The reference numerals in the detailed embodiments are as follows:

[0025] 1. Sealed structure;

[0026] 10. Cover plate; 11. Sealing groove; 12. Through hole;

[0027] 20. Housing; 21. Opening; 22. Side wall; 23. Curved surface;

[0028] 24. Threaded portion; 241. Threaded hole; 25. First reinforcing part; 26. Second reinforcing part;

[0029] 30. Screws. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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).

[0036] 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.

[0037] 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.

[0038] Please see Figures 1-5 ,like Figures 1-5 The sealing structure 1 of the micro inverter shown includes: a housing 20, which includes multiple side walls 22 and an opening 21, the multiple side walls 22 surrounding the opening 21; a cover plate 10, which is used to close the opening 21; and a sealing groove 11 on the cover plate 10, which is used to engage the multiple side walls 22.

[0039] like Figure 3 and Figure 5As shown, the flange face of the housing 20 in the prior art is removed, leaving only the wall thickness. A sealing groove 11 is added to the cover plate 10. The cover plate 10 can be made of plastic. The sealing groove 11 can be formed by cold extrusion, cutting, or other methods on the cover plate 10. Alternatively, a connecting strip can be added to the cover plate 10, and a sealing groove 11 can be formed between two connecting strips. The wall thickness of the side wall 22 of the housing 20 is adapted to the width of the sealing groove 11. Furthermore, the sealing groove 11 is coated with sealant to improve the connection strength between the sealing groove 11 and the side wall 22 of the housing 20 and to improve the sealing performance of the sealing structure 1.

[0040] Preferably, the sealing structure 1 further includes fasteners; the side wall 22 of the housing 20 is provided with a mounting part, which has a mounting hole; the cover plate 10 has a through hole 12; when the side wall 22 of the housing 20 is engaged with the sealing groove 11, the mounting hole is aligned with the through hole 12, and the fastener is used to pass through the through hole 12 and connect with the mounting hole to fix the cover plate 10 to the housing 20.

[0041] In one alternative approach, the fastener is a bolt assembly, and the mounting hole is also a through hole. The fastener passes through the through hole 12 of the cover plate 10 and the through hole of the housing 20 in sequence, fixing the cover plate 10 to the housing 20.

[0042] Preferably, the mounting hole is a threaded hole 241, and the fastener is a screw 30. The screw 30 is used to pass through the through hole 12 and be screwed into the threaded hole 241 to reduce the installation difficulty of fixing the cover plate 10 to the housing 20.

[0043] Preferably, the connection between adjacent side walls 22 on the housing 20 is recessed into the housing 20 to form an arc surface 23, and the mounting component is located at the arc surface 23 to further save the installation space required for the mounting component, thereby further reducing the housing size of the micro inverter.

[0044] Preferably, the mounting component includes a threaded portion 24; the inner wall of the threaded portion 24 has a threaded hole 241, and the outer wall of the threaded portion 24 extends to form a reinforcing portion, which is connected to the arc surface 23; specifically, the reinforcing portion includes a first reinforcing portion 25 and a second reinforcing portion 26; the first reinforcing portion 25 is located at the top of the threaded portion 24 and is connected to the arc surface 23 and the two side walls 22 forming the arc surface 23; the second reinforcing portion 26 extends from the top of the threaded portion 24 to the bottom of the threaded portion 24 and is connected to the arc surface 23, thereby improving the connection strength between the threaded portion 24 and the arc surface 23 and preventing the threaded portion 24 from easily breaking and falling off during use.

[0045] Preferably, the first reinforcing part 25, the second reinforcing part 26, the threaded part 24 and the arc surface 23 are integrally formed to further improve the connection strength between the threaded part 24 and the arc surface 23.

[0046] This embodiment of the application provides a sealing groove 11 on the cover plate 10 and removes the flange face on the top of the side wall 22 of the housing 20, directly snapping the side wall 22 of the housing 20 onto the sealing groove 11 on the cover plate 10. This reduces the size of the sealing groove and flange face on the housing 20, thereby reducing the size of the micro inverter, simplifying the structure of the housing 20, improving the applicability of the product, and reducing manufacturing costs.

[0047] According to another aspect of the embodiments of this application, a microinverter is also provided, which includes the sealing structure 1 as described in any of the above embodiments.

[0048] 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. A sealing structure of a micro inverter, characterized by, The sealing structure comprises: a casing, the casing comprising a plurality of side walls and an opening, the plurality of side walls enclosing the opening; a cover plate for closing the opening; the cover plate having a sealing groove for clamping the plurality of side walls.

2. The seal structure of claim 1, wherein The sealing structure further comprises a fastener; the side wall of the casing is provided with a mounting member, the mounting member having a mounting hole; the cover plate has a through hole; when the side wall of the casing is clamped in the sealing groove, the mounting hole is aligned with the through hole, and the fastener is used to penetrate the through hole and connect with the mounting hole to fix the cover plate to the casing.

3. The seal structure of claim 2, wherein The mounting hole is a threaded hole, and the fastener is a screw, the shank of the screw being used to penetrate the through hole and screw into the threaded hole.

4. The seal structure of claim 3, wherein The connection between the two adjacent side walls of the casing is recessed to form a curved surface inside the casing, and the mounting member is arranged at the curved surface.

5. The seal structure of claim 4, wherein The mounting member comprises a threaded portion, the inner wall of the threaded portion forming the threaded hole, and the outer wall of the threaded portion extending to form a reinforcing portion connected with the curved surface.

6. The seal structure of claim 5, wherein The reinforcing portion comprises a first reinforcing portion and a second reinforcing portion, the first reinforcing portion being located at the top of the threaded portion and connected with the curved surface and the two side walls forming the curved surface; the second reinforcing portion extending from the top of the threaded portion to the bottom of the threaded portion and connected with the curved surface.

7. The seal structure of claim 6, wherein The first reinforcing portion, the second reinforcing portion, the threaded portion and the curved surface are integrally formed.

8. The sealed structure of claim 1, wherein, The sealing groove is coated with sealant.

9. The seal structure of claim 8, wherein, The cover plate is made of plastic material.

10. A micro-inverter, comprising: The micro-inverter comprises the sealing structure according to any one of claims 1-9.

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