CN212138155U

CN212138155U - PCB fixing structure and charger

Info

Publication number: CN212138155U
Application number: CN202021340333.6U
Authority: CN
Inventors: 高雷迪; 龙海岸; 王清旺
Original assignee: Ningbo Gongniu Digital Technology Co Ltd
Current assignee: Ningbo Gongniu Digital Technology Co Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-12-11
Anticipated expiration: 2030-07-09

Abstract

The utility model relates to a charger technical field discloses a PCB board fixed knot constructs and charger, PCB board fixed knot constructs, including: the bottom shell is provided with an opening; the PCB board is arranged in the bottom shell; at least one clamping structure for fixing the PCB is arranged on the bottom shell; the surface cover is detachably covered at the opening. The utility model has the advantages that after the PCB is arranged in the bottom shell, the PCB is supported by the supporting piece, the clamping structure is fixed, the limiting piece limits, after the abutting block abuts against the PCB, the front and the back, the left and the right, and the upper and the lower parts of the PCB are positioned, and the installation stability is good; and the PCB board can be packed into from top to bottom along the opening of drain pan, realizes the formula installation of lying, and product assembly space utilization is high.

Description

PCB fixing structure and charger

Technical Field

The utility model relates to a charger technical field especially relates to a PCB board fixed knot constructs and charger.

Background

The charger mainly includes: the charger comprises an external metal bolt, a shell, an internal circuit board and other components, wherein the circuit board is arranged in the shell, so that the use safety and the service life of the charger are ensured. The existing charger is used for vertical installation mostly, and is greatly influenced by the height of an electronic component on a circuit board when a product is assembled, the utilization rate of an installation space is low, and the fixed structure of the circuit board is unreasonable in design, so that poor stability or complex fixed structure is caused, and the manufacturing difficulty is high.

The patent "CN 201922031454.6" discloses an assembly structure of USB cut straightly formula power adapter, including shell lower cover, shell upper cover, printed circuit board, plug pin, shell lower cover one end is provided with the front end shell, shell lower cover upper end is provided with the shell upper cover, be connected with on the front end shell the plug pin, plug pin one side is located shell lower cover inboard is provided with printed circuit board, still including being convenient for connect the plug pin with printed circuit board's metal shrapnel. In the scheme, the circuit board can only be vertically installed, so that the height of an electronic element on the circuit board is strictly limited, and the space utilization rate of the circuit board installation space is low because the shell interferes with the circuit board or not; and the circuit board is only limited and fixed through the guiding positioning grooves on the inner walls of the two sides, and the installation stability of the circuit board is poor.

Disclosure of Invention

The above-mentioned not enough to prior art, the utility model aims to solve the technical problem that, provide a space utilization height, installation convenient, and PCB board fixed knot that installation stability is good constructs.

The utility model provides a technical scheme that its technical problem adopted is, provides a PCB board fixed knot and constructs, including:

the bottom shell is provided with an opening;

a PCB disposed in the bottom case; at least one clamping structure for fixing the PCB is arranged on the bottom shell;

and the surface cover is detachably covered at the opening.

Further, the opening sets up, just the PCB board can be followed the opening is gone into from last to lower card in the joint structure.

Furthermore, a plurality of supporting pieces are arranged in the bottom shell, and the PCB is arranged on the supporting pieces.

Furthermore, the bottom shell comprises a bottom plate and a side wall connected to the bottom plate, and the supporting piece is arranged at the connecting position of the bottom plate and the side wall.

Further, the lateral wall is including the first lateral wall, second lateral wall, third lateral wall and the fourth lateral wall that connect gradually, just all be equipped with on first lateral wall, second lateral wall, third lateral wall and the fourth lateral wall support piece.

Furthermore, the second side wall and the fourth side wall are both provided with limiting pieces, and the limiting pieces are positioned on the supporting piece;

the side, close to the PCB, of the limiting piece is provided with an inclined surface, and the inclined surface is gradually close to the PCB from top to bottom.

Furthermore, the clamping structure is a clamping block, is arranged on the third side wall and is positioned on the supporting piece; the clamping block is provided with a clamping groove, and the PCB is detachably arranged in the clamping groove.

Furthermore, a guide oblique angle is arranged on the clamping block close to the PCB side.

Further, the device also comprises a side cover which is detachably connected with the bottom shell and/or the face cover; the side cover is provided with a plurality of abutting blocks, and the abutting blocks abut against the PCB.

The utility model also provides a charger, including foretell PCB board fixed knot structure.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

(1) in the utility model, after the PCB is arranged in the bottom shell, the PCB is limited in the clamping groove on the clamping block and matched with the abutting block on the side cover, and the limitation of the first side wall and the third side wall is added, so that the freedom degree of the PCB in the up-down and front-back directions is limited, the PCB is prevented from moving up and down and back and forth, and the guide oblique angle on the clamping block is convenient for the PCB to be guided into the clamping groove; the PCB is arranged above the supporting piece, so that components below the PCB are not interfered by the bottom shell, and the supporting pieces are arranged on the first side wall, the second side wall, the third side wall and the fourth side wall, so that the PCB is supported in balance; all set up the locating part on the second lateral wall and on the fourth lateral wall, the degree of freedom of PCB board left and right sides direction is restricted, prevents that it from moving about, and the inclined plane setting on the locating part, can conveniently be fixed the PCB board on the one hand, and on the other hand also makes things convenient for the direction when the PCB board is packed into. Therefore, the PCB is positioned in the upper, lower, left, right, front and back directions, and the installation stability of the PCB is good.

(2) The utility model discloses in, the PCB board can be along the opening on the drain pan, go into the draw-in groove from last to lower card, realize the flat formula of lying installation of PCB board, compare in the vertical formula installation of the PCB board of prior art, the formula installation of lying has reduced the requirement to the high restriction of components and parts on the PCB board relatively, can not be because the height of certain single components and parts is higher, and influence the installation of whole PCB board, and the installation space utilization who adopts the formula installation of lying is higher relatively, and it is more convenient to install.

Drawings

Fig. 1 is a schematic structural diagram of a charger of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic half-section view of FIG. 1;

FIG. 4 is a schematic structural view of the face cover;

FIG. 5 is a schematic view of the face cover from another perspective;

fig. 6 is a schematic structural view of the side cover.

In the figure, the position of the upper end of the main shaft,

1. a bottom case; 10. an opening; 11. a clamping structure; 12. a support member; 13. a base plate; 14. a side wall; 15. a limiting member; 110. a clamping block; 111. a card slot; 140. a first side wall; 141. a second side wall; 142. a third side wall; 143. a fourth side wall; 150. a bevel; 1101. guiding oblique angles;

2. a PCB board;

3. a face cover;

4. a side cover; 40. and (6) butting against blocks.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, a PCB fixing structure includes: bottom shell 1, PCB board 2, face lid 3 and side cap 4.

Wherein, the bottom shell 1 is provided with an opening 10; a PCB 2 disposed in the bottom case 1; at least one clamping structure 11 for fixing the PCB 2 is arranged on the bottom shell 1; and a face cover 3 detachably covering the opening 10. When the charger is installed, the charger is assembled from top to bottom, the PCB 2 is firstly inclined by a certain angle and then clamped into the clamping structure 11, and finally the product can be integrally assembled and fixed through an ultrasonic process. After the PCB 2 is arranged in the bottom shell 1, the freedom degrees of the PCB 2 up and down and back and forth are limited under the limitation of the bottom shell 1 and the clamping structure 11, and the PCB 2 can not shift up and down and back and forth in the using process; and when needs are dismantled this overall structure, take off face lid 3, can see the condition of components and parts on the PCB board 2, the dismouting is convenient.

Preferably, as shown in fig. 2, 3 and 6, the PCB panel fixing structure further includes: the side cover 4 is detachably connected with the bottom shell 1 and/or the face cover 3, and a metal bolt of the charger is arranged on the side cover 4; the side cover 4 is provided with a plurality of abutting blocks 40, and the abutting blocks 40 abut against the PCB 2. After the PCB 2 is clamped into the clamping structure 11, since the clamping structure 11 is only arranged at one end of the PCB 2, the supporting block 40 supports against one end of the PCB 2 opposite to the clamping structure 11, and both ends of the PCB 2 can be limited, so that the stress is balanced.

Preferably, the opening 10 of the bottom case 1 is disposed upward, and the PCB board 2 can be clamped into the clamping structure 11 from top to bottom along the opening 10, i.e. a lying type installation. Compare in prior art's PCB board 2's vertical formula installation, the formula installation of lying has reduced the requirement to the high restriction of components and parts on the PCB board relatively, and the installation space utilization who adopts the formula installation of lying is higher relatively, and it is more convenient to install. Especially, the bottom surface to this scheme's drain pan 1 is not complete plane setting, and the centre of drain pan is darker, and both ends are lighter, if adopt vertical installation, then require the highest height of components and parts on the PCB board 2 will be less than the height of the shallowest department of drain pan 1, otherwise, in the installation, when sliding PCB board 2 into drain pan 1, then can make PCB board 2 interfere the drain pan. And this condition can be avoided to the formula installation of lying of this scheme, for example the components and parts in 2 middle parts of PCB board can set up the higher components and parts of a bit, and both ends can set up the lower components and parts of a bit of height, if the components and parts height in 2 middle parts of PCB board is a bit more than the height at drain pan 1 both ends, and as long as be less than the height in the middle part of drain pan 1 can, so the space utilization of the formula installation of lying is higher.

Preferably, a plurality of supporting members 12 are arranged in the bottom case 1, the PCB 2 is disposed on the supporting members 12, and the PCB 2 is disposed above the supporting members 12, so that components below the PCB 2 are prevented from being interfered by the bottom case 1. Specifically, bottom shell 1 includes bottom plate 13 and lateral wall 14 connected on bottom plate 13, and support 12 sets up in the junction of bottom plate 13 and lateral wall 14, sets up support 12 here, has both guaranteed support 12's intensity, and the latter deformation is collapsed to the difficult follow-up dismouting in-process by support 12, can improve lateral wall 14's intensity again. The side wall 14 includes a first side wall 140, a second side wall 141, a third side wall 142 and a fourth side wall 143, which are connected in sequence, and the first side wall 140, the second side wall 141, the third side wall 142 and the fourth side wall 143 are all provided with the supporting member 12, which is equivalent to that the supporting member 12 is arranged around the bottom plate 13 of the bottom case 1, so as to ensure the supporting balance of the PCB board 2.

Further preferably, the limiting members 15 are disposed on the second sidewall 141 and the fourth sidewall 143 of the bottom case 1, and the limiting members 15 are disposed on the supporting members 12; the side of the limiting member 15 close to the PCB 2 is provided with an inclined plane 150, the inclined plane 150 is gradually close to the PCB 2 from top to bottom, and the top of the inclined plane 150 is provided with a fillet, so that a certain guiding effect can be achieved, and the PCB 2 can be conveniently loaded. The limiting piece 15 is arranged, the freedom degree of the PCB 2 in the left and right directions is limited, the PCB 2 is prevented from moving left and right, and the inclined plane 150 on the limiting piece 15 is arranged, so that the PCB 2 can be conveniently fixed, and when the PCB 2 has a certain manufacturing dimension error, the limiting piece 15 can also fix the PCB 2; on the other hand, the guide of the PCB board 2 when it is loaded into the bottom chassis 1 is facilitated. Therefore, after the PCB 2 is limited by the clamping structure 11, the abutting block 40, the limiting parts 15 on both sides, the side wall 14 of the bottom case 1 and the supporting part 12, the PCB 2 is positioned in six directions, namely, up, down, left, right, front, rear, and front, and the PCB 2 has good installation stability.

Preferably, as shown in fig. 2 to 5, the latching structure 11 is a latch 110, and is disposed on the third sidewall 142 and on the supporting member 12; the clamping block 110 is provided with a clamping groove 111, the PCB 2 is detachably arranged in the clamping groove 111, a guide oblique angle 1101 is arranged on the side, close to the PCB 2, of the clamping block 110, and the guide oblique angle 1101 on the clamping block 110 is convenient for the PCB 2 to be guided into the clamping groove 111. The upper portion of the latch 110 also has an end guide section to facilitate the installation of the PCB panel 2. When the PCB 2 needs to be detached from the bottom case 1, since the latch 110 is only disposed on the third sidewall 142 and the latch 110 is not disposed on the first sidewall 140 opposite to the third sidewall 142, the PCB can be taken out of the slot 111 after being lifted from the first sidewall 140. Wherein, bottom plate 13, lateral wall 14, support piece 12, locating part 15 and fixture block 110 in this scheme all set up the integral type, and convenient shaping for drain pan 1 can simplify the manufacturing procedure through injection moulding.

In the scheme, after the PCB 2 is arranged in the bottom shell 1, the PCB is supported by the support piece 12, the clamping structure 11 is fixed, the limiting piece 15 limits the PCB, and after the abutting block 40 abuts against the PCB, the front and back, the left and right, and the upper and lower parts of the PCB 2 are positioned, so that the installation stability is good; and the PCB board 2 can be installed from top to bottom along the opening 10 of the bottom shell 1, so that the flat-lying type installation is realized, and the utilization rate of the product assembling space is high.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a PCB board fixed knot constructs which characterized in that, including:

the bottom shell (1), wherein an opening (10) is arranged on the bottom shell (1);

a PCB (2) disposed in the bottom case (1); at least one clamping structure (11) for fixing the PCB (2) is arranged on the bottom shell (1);

and the surface cover (3) is detachably covered on the opening (10).

2. A PCB board fixing structure according to claim 1, wherein the opening (10) is disposed upward, and the PCB board (2) can be clipped into the clip structure (11) along the opening (10) from top to bottom.

3. A PCB board fixing structure according to claim 2, wherein a plurality of supporting members (12) are provided in the bottom case (1), and the PCB board (2) is disposed on the supporting members (12).

4. A PCB board fixing structure according to claim 3, wherein the bottom case (1) includes a bottom plate (13) and a side wall (14) connected to the bottom plate (13), and the supporting member (12) is disposed at a connection position of the bottom plate (13) and the side wall (14).

5. The PCB fixing structure of claim 4, wherein the side wall (14) comprises a first side wall (140), a second side wall (141), a third side wall (142) and a fourth side wall (143) which are connected in sequence, and the supporting member (12) is arranged on each of the first side wall (140), the second side wall (141), the third side wall (142) and the fourth side wall (143).

6. A PCB fixing structure according to claim 5, wherein a limiting member (15) is arranged on each of the second side wall (141) and the fourth side wall (143), and the limiting member (15) is arranged on the supporting member (12);

be close to on locating part (15) PCB board (2) side has an inclined plane (150), just inclined plane (150) is close to from last to down gradually PCB board (2).

7. The PCB fixing structure of claim 5, wherein the clamping structure (11) is a clamping block (110) which is arranged on the third side wall (142) and is positioned on the supporting member (12); the clamping block (110) is provided with a clamping groove (111), and the PCB (2) is detachably arranged in the clamping groove (111).

8. The PCB fixing structure of claim 7, wherein the fixture block (110) is provided with a guiding bevel (1101) at a side close to the PCB (2).

9. A PCB board fixing structure according to claim 1, further comprising a side cover (4) detachably connected to the bottom case (1) and/or the face cover (3); the side cover (4) is provided with a plurality of abutting blocks (40), and the abutting blocks (40) abut against the PCB (2).

10. A charger, characterized by comprising the PCB board fixing structure according to any one of claims 1 to 9.