Inverter shell structure

Abstract

The utility model discloses an inverter housing structure, comprising an upper cover and a lower housing, the upper cover is fixedly installed on the lower housing, the bottom surface of the upper cover is provided with a plurality of studs, one end of the lower housing close to the upper cover is provided with an end part assembly, the concave part of the end part assembly is provided with a plurality of screw through holes, and the screw through holes are arranged in the screw through holes. The height of the stud is matched with the depth of the concave portion, a screw is inserted into the screw through hole, the screwing end of the screw is arranged upwards, and the stud and the concave portion are fixedly installed together through the screw. The beneficial effects of the utility model lie in that there is no screw hole site on the front surface or the side surface, the completeness and consistency of the product appearance are improved, the screws are installed below the cover and do not affect communication components such as an antenna in the inverter, in addition, the connection between the upper cover and the lower shell is stable, and the product reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to an inverter housing structure. Background Art

[0002] In the prior art, the inverter includes an upper cover and a lower shell, and a sealing strip is fixed on the upper cover or the lower shell. The upper cover and the lower shell are usually connected and fixed by fasteners (such as bolts, screws or screws, etc.) to increase the firmness and reliability of the connection between the two. Usually, a mounting hole is opened on the front or side of the upper cover, and a threaded hole opposite to the mounting hole is provided on the lower shell. During the connection process, fasteners such as screws can be passed through the mounting holes of the upper cover and then screwed into the threaded holes of the lower shell, so that the upper cover and the lower shell are connected by screw fasteners.

[0003] In the above connection method, fasteners such as screws are located on the front of the upper cover, which makes the fasteners visible from the front, reducing the consistency of the product (inverter). If fasteners such as screws are installed on the side of the upper cover, pressure needs to be applied to the upper cover during installation to ensure that the sealing strip is compressed into place, resulting in the need for a jig for installation, which is inconvenient to operate. Utility Model Content

[0004] The purpose of the utility model is to solve the above problem and provide an inverter housing structure.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An inverter housing structure comprises an upper cover and a lower housing, wherein the upper cover is fixedly mounted on the lower housing, a plurality of studs are arranged on the bottom surface of the upper cover, an end assembly is arranged on one end of the lower housing close to the upper cover, a plurality of screw through holes are arranged on the recess of the end assembly, the height of the studs matches the depth of the recess, a screw is inserted into the screw through hole, the screw-on end of the screw is arranged upward, and the stud and the recess are fixedly mounted together by the screws.

[0007] Furthermore, the end assembly includes an end portion, the end portion extends outward to form an annular edge portion, and the annular edge portion is provided with a plurality of recesses corresponding to the studs.

[0008] Further, the end assembly includes an end, and the outer periphery of the lower shell below the end is provided with an outer ring portion, and the outer ring portion is the recessed portion.

[0009] Furthermore, the stud is provided with a threaded hole, and the end of the screw is screwed into the threaded hole.

[0010] Furthermore, the studs are distributed in a ring shape on the bottom surface of the upper cover.

[0011] Furthermore, the number of the studs is an even number.

[0012] Furthermore, it also includes a sealing ring strip, which is padded between the upper cover and the lower shell.

[0013] Furthermore, the upper cover has a cover body and a lower edge located around the cover body.

[0014] Furthermore, it also includes a sealing ring strip, which is padded between the lower surface of the cover body and the upper surface of the end portion.

[0015] The beneficial effects of the utility model are:

[0016] 1. There are no screw holes on the front or side, which improves the integrity and consistency of the product;

[0017] 2. Metal screws installed under the cover will not affect the antenna and other communication components in the inverter;

[0018] 3. The connection between the upper cover and the lower shell is firm, and the product (inverter) has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an exploded structure of an inverter housing structure described in the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of an inverter housing structure described in the utility model;

[0021] Figure 3 This utility model Figure 2 An enlarged schematic diagram of point A of an inverter housing structure described in the invention;

[0022] Figure 4 It is a schematic diagram of an upper cover of an inverter housing structure described in the utility model;

[0023] Figure 5 It is a schematic diagram of the lower housing of the first embodiment of the inverter housing structure described in the utility model;

[0024] Figure 6 It is a schematic diagram of the lower shell of the second embodiment of the inverter shell structure described in the utility model.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Upper cover; 11. Cover body; 12. Lower edge; 2. Screws; 3. Sealing ring strip; 4. Lower shell; 5. End; 51. Ring edge; 6. Stud; 7. Recess; 8. Outer ring; 9. Screw through hole; 10. Threaded hole. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the embodiments and drawings: Example

[0028] like Figure 1 - Figure 5 As shown, an inverter housing structure includes an upper cover 1 and a lower housing 4;

[0029] The upper cover 1 is fixedly mounted on the lower shell 4. A plurality of studs 6 are provided on the bottom surface of the upper cover 1. An end portion 5 is provided on the top of the lower shell 4 (one end close to the upper cover 1). The end portion 5 extends outward to form an annular edge portion 51. The annular edge portion 51 is provided with a plurality of recesses 7 corresponding to the studs 6. The studs 6 are pressed into the recesses 7 to achieve alignment assembly. Screw through holes 9 are provided on the recesses 7.

[0030] In this embodiment, the end portion 5 and the annular edge portion 51 are collectively referred to as an end portion assembly, or in other words, the end portion assembly includes the end portion 5 and the annular edge portion 51 .

[0031] In this embodiment, the height of the stud 6 matches the depth of the recess 7 (the vertical distance between the upper surface of the rim 51 and the bottom of the recess 7 ).

[0032] A screw 2 is inserted into the screw through hole 9 , with the screw-on end of the screw 2 facing upward, and the stud 6 and the recess 7 are fixedly mounted together by the screw 2 , thereby achieving fixed installation of the upper cover 1 and the lower shell 4 .

[0033] In this embodiment, the studs 6 are distributed in a ring shape on the bottom surface of the upper cover 1, and there are ten studs 6; in other embodiments, the studs 6 may be two, four, six, eight or other even numbers. It can be understood that in one embodiment, when there are four or more studs 6, if the bottom surface profile of the upper cover 1 is a rectangle, the number of studs 6 in the width direction of the bottom surface of the upper cover 1 is less than or equal to the number of studs 6 in the length direction of the bottom surface of the upper cover 1; if the bottom surface profile of the upper cover 1 is a square, the studs on the bottom surface of the upper cover 1 are evenly arranged.

[0034] In one embodiment, the inverter housing structure further includes a sealing ring strip 3 , which is cushioned between the upper cover 1 and the lower housing 4 .

[0035] In one embodiment, the upper cover 1 has a cover body 11 and a lower edge 12 located around the cover body 11, and the sealing ring strip 3 is padded between the lower surface (bottom surface) of the cover body 11 and the upper surface of the end 5; a plurality of studs 6 are arranged on the bottom surface of the cover body 11. When the upper cover 1 and the lower shell 4 are fixedly installed, the lower edge 12 wraps around the annular edge 51, so that the inverter has good integrity and is dust and moisture resistant.

[0036] It can be understood that the number of the studs 6 is consistent with the number of the recesses 7 / screw through holes 9.

[0037] In this embodiment, a threaded hole 10 is provided on the stud 6 , and the end of the screw 2 is screwed into the threaded hole 10 . Example

[0038] like Figure 1 - Figure 4 , Figure 6 As shown, an inverter housing structure includes an upper cover 1 and a lower housing 4; the upper cover 1 is fixedly mounted on the lower housing 4, a plurality of studs 6 are provided on the bottom surface of the upper cover 1, and an end 5 is provided on the top of the lower housing 4 (one end close to the upper cover 1). The difference from Example 1 is that, in the inverter housing structure of Example 2, an outer ring portion 8 is provided on the outer periphery of the lower housing 4 below the end 5, compared with the local recess (recess 7) in Example 1, the outer ring portion 8 is sunken relative to the end 5 in a whole circle (that is, the position height of the outer ring portion 8 is lower than the end 5), and screw through holes 9 are provided on the outer ring portion 8. It can be understood that the screw through holes 9 pass through the outer ring portion 8.

[0039] In Embodiment 2, the end portion 5 and the outer ring portion 8 are collectively referred to as an end assembly, and the recess of the end assembly refers to the outer ring portion 8 at this time; it can be understood that in other embodiments, the end assembly may also be other styles having a recess that matches the stud 6 on the upper cover 1.

[0040] It can be understood that the depth of the outer ring portion 8 (the height of the sinking, ie, the vertical distance between the upper surface of the end portion 5 and the upper surface of the outer ring portion 8 ) matches the height of the stud 6 .

[0041] Similar to the first embodiment, the inverter housing structure of the second embodiment may also include a sealing ring strip 3 , and the sealing ring strip 3 is padded between the upper cover 1 and the lower housing 4 .

[0042] It can be understood that in Example 2, when the upper cover 1 has a cover body 11 and a lower edge 12 located around the cover body 11, the sealing ring strip 3 is padded between the lower surface (bottom surface) of the cover body 11 and the upper surface of the end 5; when the upper cover 1 and the lower shell 4 are fixedly installed, the lower edge 12 wraps around the outer ring portion 8, so that the inverter has good integrity and is dust and moisture proof.

[0043] In the above two embodiments, the stud 6 of the upper cover 1 can have various shapes. If the main body (cover body 11) of the upper cover 1 is a flat sheet metal structure, the stud 6 can be made into a rivet stud or a rivet riveted to the main body (cover body 11) of the upper cover 1; if the main body (cover body 11) of the upper cover 1 is a curved sheet metal structure, the stud 6 can be made into a die-cast part welded to the main body (cover body 11) of the upper cover 1; if the main body (cover body 11) of the upper cover 1 is a die-cast part or a plastic part, the stud 6 can be designed as a stud accompanying the main body (cover body 11) of the upper cover 1.

[0044] The lower shell 4 can generally be made by sheet metal, die casting or injection molding, and has two forms (structures). Form one is to locally make a recessed portion 7 accompanying the lower shell 4 (Example 1), and form two is a whole circle of the outer ring portion 8 sunk (Example 2). Both structures are easy to implement, and can achieve the effect of fastening between the upper cover 1 and the lower shell 4 without increasing too much cost; the screw 2 is inserted into the screw through hole 9 from bottom to top, and then the two shells (lower shell 4, upper cover 1) are fixed by the screw 2; when there is a sealing ring strip 3, the sealing ring strip 3 is first fixed to the lower shell 4 or the upper cover 1, and the screw 2 is inserted into the screw through hole 9 from bottom to top, and then the two shells (lower shell 4, upper cover 1) are fixed by the screw 2; that is, the two shells (lower shell 4, upper cover 1) are fixed by tightening the screw 2 from bottom to top (the screw-on end of the screw 2 is screwed into the stud 6).

[0045] In the above embodiment, there are no screw holes on the front or side of the upper cover 1, which improves the integrity and consistency of the product shell structure, the connection between the upper cover and the lower shell is firm, and the product (inverter) has high reliability.

[0046] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. An inverter housing structure, comprising an upper cover and a lower housing, wherein the upper cover is fixedly mounted on the lower housing, characterized in that: The bottom surface of the upper cover is provided with a plurality of studs, and the end of the lower shell body close to the upper cover is provided with an end assembly, and the recess of the end assembly is provided with a plurality of screw through holes, the height of the studs matches the depth of the recess, and screws are inserted into the screw through holes, and the screw-on end of the screw is arranged upward, and the studs and the recess are fixed together by the screws.

2. The inverter housing structure according to claim 1, characterized in that: The end assembly comprises an end portion, the end portion extends outward to form an annular edge portion, and the annular edge portion is provided with a plurality of recessed portions corresponding to the studs.

3. The inverter housing structure according to claim 1, characterized in that: The end assembly comprises an end portion, and an outer ring portion is provided on the outer periphery of the lower shell below the end portion, and the outer ring portion is the recessed portion.

4. The inverter housing structure according to claim 1, characterized in that: The stud is provided with a threaded hole, and the end of the screw is screwed into the threaded hole.

5. The inverter housing structure according to claim 1, characterized in that: The studs are distributed in a ring shape on the bottom surface of the upper cover.

6. The inverter housing structure according to claim 1, characterized in that: The number of the studs is even.

7. The inverter housing structure according to claim 1, characterized in that: It also includes a sealing ring strip, which is cushioned between the upper cover and the lower shell.

8. An inverter housing structure according to claim 2 or 3, characterized in that: The upper cover comprises a cover body and a lower edge located around the cover body.

9. The inverter housing structure according to claim 8, characterized in that: It also includes a sealing ring strip, which is cushioned between the lower surface of the cover body and the upper surface of the end portion.

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