CN212183870U - Sheet metal electric box - Google Patents

Sheet metal electric box Download PDF

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Publication number
CN212183870U
CN212183870U CN202020946903.XU CN202020946903U CN212183870U CN 212183870 U CN212183870 U CN 212183870U CN 202020946903 U CN202020946903 U CN 202020946903U CN 212183870 U CN212183870 U CN 212183870U
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China
Prior art keywords
box
box body
bending wall
box cover
wall
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CN202020946903.XU
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Chinese (zh)
Inventor
庄荣宇
刘国伟
于海波
解鹏程
王峰
张国栋
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NR Electric Co Ltd
NR Engineering Co Ltd
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NR Electric Co Ltd
NR Engineering Co Ltd
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Priority to CN202020946903.XU priority Critical patent/CN212183870U/en
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Abstract

The utility model discloses an electric box of panel beating in electric box technical field for holding printed circuit board, and have few screw, make things convenient for the characteristics of dismouting, simultaneously with low costs, design flexibility ratio height. The box body assembly comprises a box body main body, a first box body bending wall is vertically connected with the box body main body, a section difference structure is formed between a second box body bending wall and the first box body bending wall, and the box body main body, the first box body bending wall and the second box body bending wall are enclosed to form a groove-shaped structure with a certain accommodating space; the box cover main body and the first, second and third bent walls of the box cover enclose a groove-shaped structure with a certain accommodating space; the second bending wall of the box body is embedded into the third bending wall of the box cover in parallel and is fixedly connected with the third bending wall of the box cover, and the third bending wall of the box cover is abutted against the section difference structure; the box body component and the box cover component enclose an accommodating space.

Description

Sheet metal electric box
Technical Field
The utility model belongs to the technical field of electric box, concretely relates to panel beating electric box.
Background
The shell of the electronic and electrical equipment is usually a die casting, a stamping part or an injection molding part, so that the die sinking cost is high, and the design flexibility is low. The electrical box processed by sheet metal is usually assembled by using more screws, so that the assembly and disassembly are more complicated; the electrical box of sheet metal working is great to the restriction of the device that printed circuit board stretches out, and the sheet metal component has certain deformation because of self technological characteristic in addition, and devices such as the terminal that stretches out are difficult to aim at the corresponding trompil of box body when the assembly.
SUMMERY OF THE UTILITY MODEL
For solving the not enough among the prior art, the utility model provides a panel beating electrical box for holding printed circuit board to have few screw, make things convenient for the characteristics of dismouting, simultaneously with low costs, design flexibility ratio height.
In order to achieve the above purpose, the utility model adopts the technical proposal that: a sheet metal electrical box comprises a box body assembly and a box cover assembly, wherein the box body assembly comprises a box body main body, a first box body bending wall is vertically connected with the box body main body, a section difference structure is formed between a second box body bending wall and the first box body bending wall, and the box body main body, the first box body bending wall and the second box body bending wall are enclosed to form a groove-shaped structure with a certain accommodating space; the box cover assembly comprises a box cover body, a first box cover bending wall is vertically connected with the box cover body, a second box cover bending wall is vertically connected with the first box cover bending wall, a third box cover bending wall is vertically connected with the second box cover bending wall, and the box cover body, the first box cover bending wall, the second box cover bending wall and the third box cover bending wall enclose a groove-shaped structure with a certain accommodating space; the second box body bending wall is embedded into the third box cover bending wall in parallel and is fixedly connected with the third box cover bending wall, and the third box cover bending wall is abutted against the section difference structure; the box body component and the box cover component enclose an accommodating space.
Furthermore, the section difference structure comprises a connecting plate, the first bending wall of the box body and the second bending wall of the box body are connected through the connecting plate, the connecting plate is perpendicular to the first bending wall of the box body and the second bending wall of the box body respectively, and the area of the area defined by the second bending wall of the box body is smaller than the area of the area defined by the first bending wall of the box body.
Furthermore, a plurality of press-riveting nut columns are arranged on the box body main body, and the press-riveting nut columns and the first bending wall of the box body are located on the same side of the box body main body.
Furthermore, a plurality of force unloading grooves are formed in the joint of the box body main body and the first bending wall of the box body.
Furthermore, the box body main part with be equipped with the louvre respectively on the box body first wall of bending.
Furthermore, a plurality of box body threaded holes are formed in the second bending wall of the box body; the box cover is characterized in that a plurality of box cover round holes are formed in the third folding wall of the box cover, and the box body threaded holes are connected with the box cover round holes through screws.
Furthermore, a plurality of box cover press riveting nuts are arranged on the third folding wall of the box cover, and the mounting support is installed on the third folding wall of the box cover through the box cover press riveting nuts.
Furthermore, a plurality of holes are formed in the second bending wall of the box body and the third bending wall of the box cover.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
(1) the utility model forms spacing by the matching of the section difference structure arranged on the box body component and the box cover component, reduces the use of screws, improves the assembly precision and is convenient for disassembly and assembly;
(2) the utility model discloses a structure only contains 3 kinds of sheet metal component and a plurality of screws, simple structure, and the flexibility is high, is fit for small batch production, can be according to the design and the processing of the light adjustment electric box of actual demand.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional structure of a sheet metal electrical box according to an embodiment of the present invention;
fig. 2 is an exploded view of a sheet metal electrical box according to an embodiment of the present invention;
fig. 3 is a schematic three-dimensional structure diagram of a box body assembly of a sheet metal electrical box according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a three-dimensional structure of a box cover assembly of a sheet metal electrical box according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a three-dimensional structure of a box cover assembly of a sheet metal electrical box according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a section difference structure of a box body assembly of a sheet metal electrical box provided by an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 6, a sheet metal electrical box includes a box body assembly 1, a box cover assembly 2, a printed circuit board assembly 3, and a mounting bracket 4; the box body component 1 and the box cover component 2 are processed by sheet metal technology; the box body assembly 1 comprises a box body main body 101, a pressure riveting nut column 106 and a threaded hole 107, and the box cover assembly 2 comprises a box cover main body 201 and a pressure riveting nut 205; the box body second bent wall 103 of the box body component 1 is embedded into the box cover third bent wall 204 of the box cover component 2 in parallel to form a positioning and matching relationship, and the box body component 1 and the box cover component 2 are fixedly connected through screws; the box body component 1 and the box cover component 2 are respectively provided with an opening surface, and the opening surfaces of the box body component and the box cover component are opposite to each other when being assembled to form a containing space together, and the containing space can be used for installing the printed circuit board component 3.
In this embodiment, the box body main body 101 and the box cover main body 201 are rectangular, the first box body bending wall 102 is vertically connected with the box body main body 101, the second box body bending wall 103 and the first box body bending wall 102 form a section difference structure 104 therebetween, and the box body main body 101, the first box body bending wall 102 and the second box body bending wall 103 enclose a groove-shaped structure having a certain accommodating space; the section difference structure 104 comprises a connecting plate, the first box body bending wall 102 and the second box body bending wall 103 are connected through the connecting plate, the connecting plate is perpendicular to the first box body bending wall 102 and the second box body bending wall 103, and the area of the area surrounded by the second box body bending wall 103 is smaller than the area of the area surrounded by the first box body bending wall 102. The box cover main body 201 is vertically connected with the box cover first bending wall 202, the box cover second bending wall 203 is vertically connected with the box cover first bending wall 202, the box cover third bending wall 204 is vertically connected with the box cover second bending wall 203, and the box cover main body 201, the box cover first bending wall 202, the box cover second bending wall 203 and the box cover third bending wall 204 are enclosed to form a groove-shaped structure with a certain accommodating space; the regional area that the first wall 202 that bends of lid encloses is greater than the regional area that the third wall 204 that bends of lid encloses, and the first wall 202 that bends of lid and the effect that the wall 203 that bends of lid second play the installation spacing, do not have the trace installation, can improve the structural strength of lid main part 201 simultaneously, when lid main part 201 has sufficient intensity and satisfies spacing requirement, also can not set up the first wall 202 that bends of lid and the wall 203 that bends of lid second. The second box body bending wall 103 is embedded into the third box cover bending wall 204 in parallel and is fixedly connected with the third box cover bending wall 204, and the size of the area defined by the first box body bending wall 102 is consistent with that of the area defined by the third box cover bending wall 204. In this embodiment, four box body threaded holes 107 are formed in the second box body bending wall 103, four corresponding box cover round holes 206 are formed in the third box cover bending wall 204, and the box body threaded holes 107 and the box cover round holes 206 are connected through screws, so that the box body assembly 1 and the box cover assembly 2 are fixed. The third bending wall 204 of the box cover abuts against the step structure 104; the box body component 1 and the box cover component 2 enclose a containing space for installing the printed circuit board component 3. This embodiment is to inserting the cooperation through the poor structure of section that sets up on box body subassembly and lid subassembly and form spacingly, has reduced the use of screw, has improved the assembly precision, makes things convenient for the dismouting.
Four rivet pressing nut columns 106 are arranged on the box body main body 101, the rivet pressing nut columns 106 and the box body first bending wall 102 are located on the same side of the box body main body 101, and the printed circuit board assembly 3 is fixed on the box body main body 101 through the rivet pressing nut columns 106. A plurality of force-releasing grooves 105 are formed at the junction of the main body 101 and the first folding wall 102 to prevent the first folding wall 102 from being deformed and turned outward. In this embodiment, the positions with the same type of connection structure can all ensure that the shape and size of the electrical box are not greatly deviated by arranging the force-removing groove 105, and the stability of the product is improved. The main body 101 and the first folded wall 102 are respectively provided with heat dissipation holes for dissipating heat from the printed circuit board assembly 3 mounted therein. A plurality of first holes 108 are formed in the second bending wall 103 of the box body, and the first holes 108 are used for avoiding the rivet pressing nut 205, so that the second bending wall 103 of the box body and the third bending wall 204 of the box cover can be tightly attached; a plurality of second holes 109 are formed in the first box body bending wall 102 and the second box body bending wall 103, the size, position and number of the second holes 109 are determined according to the size, position and number of the devices extending from the printed circuit board assembly 3, and since the second box body bending wall 103 and the third box cover bending wall 204 have an overlapping portion, a third hole 207 corresponding to the second hole 109 is formed in a proper position of the third box cover bending wall 204. A fourth hole 208 is further formed in the cover body 201 for receiving the display screen of the pcb assembly 3. The inner side of the third box cover bending wall 204 is provided with a plurality of box cover riveting nuts 205, the mounting support 4 is mounted on the third box cover bending wall 204 through the box cover riveting nuts 205 and used for fixing the electric box, in the embodiment, the number of the mounting supports 4 is two, each mounting support 4 is fixed on the third box cover bending wall 204 through three screws, and the mounting support 4 is further provided with mounting holes connected with other equipment. The structure of this embodiment only contains 3 kinds of sheet metal component and a plurality of screws, simple structure, and the flexibility is high, is fit for small batch production, can be according to the design and the processing of the light adjustment electric box of actual demand.
The utility model discloses when in-service use, install on the flat board of opening the hole usually, the size in hole is greater than the peripheral size of the first wall 102 that bends of box body, is less than the peripheral size of the first wall 202 that bends of lid, and the lid second is bent the wall 203 outside and is installed flat board lateral surface contact, and installing support 4 links through the screw with the installation flat board.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (8)

1. A sheet metal electrical box is characterized by comprising a box body component and a box cover component,
the box body assembly comprises a box body main body, a first box body bending wall is vertically connected with the box body main body, a section difference structure is formed between a second box body bending wall and the first box body bending wall, and the box body main body, the first box body bending wall and the second box body bending wall enclose a groove-shaped structure with a certain accommodating space;
the box cover assembly comprises a box cover body, a first box cover bending wall is vertically connected with the box cover body, a second box cover bending wall is vertically connected with the first box cover bending wall, a third box cover bending wall is vertically connected with the second box cover bending wall, and the box cover body, the first box cover bending wall, the second box cover bending wall and the third box cover bending wall enclose a groove-shaped structure with a certain accommodating space;
the second box body bending wall is embedded into the third box cover bending wall in parallel and is fixedly connected with the third box cover bending wall, and the third box cover bending wall is abutted against the section difference structure; the box body component and the box cover component enclose an accommodating space.
2. The sheet metal electrical box of claim 1, wherein the step structure includes a connecting plate, the first bending wall of the box body and the second bending wall of the box body are connected by the connecting plate, the connecting plate is perpendicular to the first bending wall of the box body and the second bending wall of the box body, and the area of the region surrounded by the second bending wall of the box body is smaller than the area of the region surrounded by the first bending wall of the box body.
3. The sheet metal electrical box of claim 1, wherein the box body is provided with a plurality of standoffs, the standoffs being located on a same side of the box body as the first folded wall of the box body.
4. The sheet metal electrical box of claim 1 wherein a plurality of force relief slots are provided at the junction of the box body main body and the box body first folded wall.
5. The sheet metal electrical box of claim 1, wherein heat dissipation holes are formed in the box body and the first bent wall of the box body, respectively.
6. The sheet metal electrical box of claim 1, wherein the second angled wall of the box body has a plurality of box body threaded holes; the box cover is characterized in that a plurality of box cover round holes are formed in the third folding wall of the box cover, and the box body threaded holes are connected with the box cover round holes through screws.
7. The electrical sheet metal box of claim 1, wherein a plurality of box cover rivet pressing nuts are disposed on the third folded wall of the box cover, and the mounting bracket is mounted on the third folded wall of the box cover through the box cover rivet pressing nuts.
8. The sheet metal electrical box of claim 1 wherein a plurality of holes are formed in the second curved wall of the box body and the third curved wall of the box cover.
CN202020946903.XU 2020-05-29 2020-05-29 Sheet metal electric box Active CN212183870U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020946903.XU CN212183870U (en) 2020-05-29 2020-05-29 Sheet metal electric box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020946903.XU CN212183870U (en) 2020-05-29 2020-05-29 Sheet metal electric box

Publications (1)

Publication Number Publication Date
CN212183870U true CN212183870U (en) 2020-12-18

Family

ID=73787911

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020946903.XU Active CN212183870U (en) 2020-05-29 2020-05-29 Sheet metal electric box

Country Status (1)

Country Link
CN (1) CN212183870U (en)

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