CN110831383B

CN110831383B - Electronic device

Info

Publication number: CN110831383B
Application number: CN201810893375.3A
Authority: CN
Inventors: 唐春梅; 万昌兵; 王德旭
Original assignee: Hongfujin Precision Electronics Chongqing Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Electronics Chongqing Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2022-08-02
Anticipated expiration: 2038-08-07
Also published as: CN110831383A

Abstract

An electronic device comprises a shell and at least one circuit board arranged in the shell, wherein the shell comprises a bottom shell and a side wall circumferentially fixed at the edge of the bottom shell, the side wall and the bottom shell form a containing cavity, at least one circuit board is fixed in the containing cavity, at least one notch is formed in the side wall, at least one fixing piece is convexly arranged at the position of the at least one notch on the inner side of the side wall, each circuit board is arranged on the fixing piece at least, the shell further comprises at least one shielding piece fixed on the outer side of the side wall, and the at least one shielding piece is arranged at the position of the at least one notch and bends towards the side wall to shield the at least one notch.

Description

Electronic device

Technical Field

The present invention relates to an electronic device.

Background

The electronic device comprises a circuit board and a shell for accommodating the circuit board. The side of the shell is bent to form a fixing piece, a through hole is formed in the fixing piece, and the fixing piece is screwed on the riveting column on the shell after penetrating through the through hole in the circuit board and the through hole in the fixing piece through a screw, so that the circuit board is fixed in the shell. Because the stationary blade is formed by the side bending of casing, consequently, the side of casing has formed the breach, in order to accord with the safety regulation requirement, needs shelter from the breach. The existing way of shielding the gap is to stick Mylar at the gap. The attachment of mylar not only increases the cost of the electronic device, but also brings inconvenience to the assembly of the electronic device.

Disclosure of Invention

Accordingly, there is a need for an electronic device that is easy to assemble.

The utility model provides an electronic device, includes the casing and arranges in an at least circuit board in the casing, the casing includes the drain pan and encircles and be fixed in the lateral wall at drain pan edge, the lateral wall with the drain pan forms the holding chamber, an at least circuit board is fixed in the holding intracavity, form an at least breach on the lateral wall, the inboard of lateral wall is in a breach department is protruding establishes an at least stationary blade, each the circuit board is arranged in one at least on the stationary blade, the casing still including be fixed in an at least shielding piece on the outside of lateral wall, an at least shielding piece is arranged in an at least breach department and to the lateral wall is buckled to an at least shielding piece will an at least breach shelters from.

Above-mentioned electronic device keeps off through sheltering from the piece and establishes the breach on with the lateral wall, adopts the mylar to paste in the breach among the prior art, and is more convenient when assembling electronic device.

Drawings

Fig. 1 is a perspective view of an electronic device.

Fig. 2 is a perspective view of the electronic device in fig. 1 with the circuit board removed.

Fig. 3 is a perspective view of the electronic device in fig. 2 in another direction.

Description of the main elements

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

Referring to fig. 1 to 3, an electronic device 100 includes a housing 20 and at least one circuit board 50. The housing 20 includes a bottom case 22 and a sidewall 24 circumferentially fixed to an edge of the bottom case 22. In the present embodiment, the side wall 24 extends perpendicularly from an edge of the bottom case 22. The bottom shell 22 and the side walls 24 form a receiving cavity 26. The at least one circuit board 50 is received in the receiving cavity 26.

At least one notch (not shown) is formed on the sidewall 24. At least one fixing plate 28 is protruded from the inner side of the sidewall 24 at the at least one notch. Each of the circuit boards 50 is disposed on at least one of the fixing pieces 28. The housing 20 also includes at least one shutter 32 secured to the outside of the side wall 24. The at least one shielding piece 32 is disposed at the at least one notch and is bent toward the sidewall 24 until the at least one shielding piece 32 shields the at least one notch.

The at least one shielding sheet 32 includes a first shielding sheet 31. The at least one notch includes a first notch 21. The first shielding piece 31 is located at one end of the first notch 21 far away from the bottom shell 22. The at least one fixing plate 28 includes a first fixing plate 13, and the first fixing plate 13 is located at an end of the first notch 21 close to the bottom shell 22. The housing 20 further includes a limiting piece 34 extending from an end of the sidewall 24 away from the bottom case 22 back to the accommodating cavity 26. The first shielding piece 31 is a part of the limiting piece 34, and the first shielding piece 31 is formed by punching a part of the limiting piece 34.

A fixing post 36 is protruded from the bottom case 22. The at least one circuit board 50 includes a first circuit board 52, and the first circuit board 52 is fixed to the fixing post 36. The fixing post 36 includes a first post 38 fixed on the bottom case 22 and a second post 40 fixed on an end of the first post 38 away from the bottom case 22, an outer diameter of the first post 38 is larger than an outer diameter of the second post 40, so that a step 44 is formed between the first post 38 and the second post 40, the first circuit board 52 forms a through hole 54, the second post 40 is disposed in the through hole 54 and the circuit board 50 is disposed on the step 44, the second post 40 forms a threaded hole 41, and a screw (not shown) is screwed into the threaded hole 41 and abuts against a side of the first circuit board 52 away from the bottom case 22. Two positioning blocks 46 are protruded from the inner side of the sidewall 24, the distance between the two positioning blocks 46 is the same as the thickness of the first circuit board 52, and the first circuit board 52 is disposed between the two positioning blocks 46.

The at least one notch further includes a second notch 23 and a third notch 25. The at least one fixing plate 28 includes a second fixing plate 15 and a third fixing plate 17. The at least one shielding piece 32 further includes a second shielding piece 33 and a third shielding piece 35. The side wall 24 includes adjacent first and

second walls

27, 29. The second notch 23 is located in the first wall 27. The second fixing piece 15 is located at one end of the second notch 23 far away from the bottom shell 22. The second shielding piece 33 is located at one end of the second notch 23 far away from the bottom shell 22. The second shielding piece 33 is formed by punching the other part of the limiting piece 34. The third gap 25 is located at an end of the first wall 27 adjacent to the second wall 29. The third fixing plate 17 is located at one end of the third notch 25 far away from the bottom shell 22. The third shutter 35 is fixed to the second wall 29 at an end thereof adjacent to the first wall 27.

The at least one circuit board 50 includes a second circuit board 56, and the second circuit board 56 is fixed on the second fixing plate 15 and the third fixing plate 17. The second fixing plate 15 and the third fixing plate 17 are respectively formed with a fixing hole 37. Two positioning holes 58 are formed on the second circuit board 56. The two positioning holes 58 are aligned with the two fixing holes 37. Two rivets (not shown) are fixed in the two fixing holes 37 through the two positioning holes 58, so that the second circuit board 56 is fixed on the second fixing plate 15 and the third fixing plate 17. The bottom shell 22 is further provided with a positioning column 39 in a protruding manner, and the second circuit board 56 is placed on the positioning column 39.

Compared with the prior art in which mylar is attached to the notch, the electronic device 100 is more convenient to assemble the electronic device 100 because the notch on the side wall 24 is blocked by the shielding sheet 32.

It will be appreciated by those skilled in the art that the above embodiments are illustrative only and not intended to be limiting, and that suitable modifications and variations to the above embodiments are within the scope of the disclosure provided that the invention is not limited thereto.

Claims

1. An electronic device comprises a shell and at least one circuit board arranged in the shell, wherein the shell comprises a bottom shell and a side wall which is circumferentially fixed at the edge of the bottom shell, the side wall and the bottom shell form an accommodating cavity, the at least one circuit board is fixed in the accommodating cavity, the side wall is provided with at least one notch, the inner side of the side wall is convexly provided with at least one fixing sheet at the at least one notch, each circuit board is at least arranged on one fixing sheet, the electronic device is characterized in that the shell further comprises at least one shielding sheet which is fixed on the outer side of the side wall, the at least one shielding sheet is arranged at the at least one notch and is bent towards the side wall to shield the at least one shielding sheet from the at least one notch, and the shell further comprises a limiting sheet which extends from the end part of the side wall, which is far away from the bottom shell, to the accommodating cavity, the at least one shielding piece is a part of the limiting piece, and the at least one shielding piece is formed by punching a part of the limiting piece.

2. The electronic device of claim 1, wherein the at least one shielding piece comprises a first shielding piece, the at least one notch comprises a first notch, the first shielding piece is located at an end of the first notch away from the bottom housing, and the at least one fixing piece comprises a first fixing piece located at an end of the first notch close to the bottom housing.

3. The electronic device of claim 1, wherein the at least one shielding piece comprises a second shielding piece, the at least one notch comprises a second notch, the second shielding piece is located at an end of the second notch away from the bottom housing, and the at least one fixing piece comprises a second fixing piece located at an end of the second notch away from the bottom housing.

4. The electronic device of claim 2, wherein a fixing post is protruded on the bottom case, and the at least one circuit board includes a first circuit board fixed to the fixing post.

5. The electronic device according to claim 4, wherein the fixing post includes a first post fixed to the bottom case and a second post fixed to an end of the first post away from the bottom case, an outer diameter of the first post is larger than an outer diameter of the second post so that a step is formed between the first post and the second post, the circuit board forms a through hole, the second post is disposed in the through hole and the circuit board is disposed on the step, the second post forms a threaded hole, and a screw is screwed into the threaded hole and abuts against a side of the first circuit board away from the bottom case.

6. The electronic device of claim 4, wherein two positioning blocks are protruded from the inner side of the sidewall, the distance between the two positioning blocks is consistent with the thickness of the first circuit board, and the first circuit board is disposed between the two positioning blocks.

7. The electronic device of claim 3, wherein the at least one shielding plate further comprises a third shielding plate, the at least one notch further comprises a third notch, the at least one fixing plate further comprises a third fixing plate located at an end of the third notch far from the bottom case, the side wall comprises a first wall and a second wall which are adjacent to each other, the third notch is located at an end of the first wall close to the second wall, and the third shielding plate is fixed at an end of the second wall close to the first wall.

8. The electronic device of claim 7, wherein the second notch is located on the first wall, and the at least one circuit board includes a second circuit board fixed to the second fixing plate and a third fixing plate.

9. The electronic device according to claim 8, wherein a positioning post is protruded from the bottom case, and the second circuit board is disposed on the positioning post.