CN217037826U

CN217037826U - A dust protected PCBA mainboard for audio amplifier

Info

Publication number: CN217037826U
Application number: CN202220821742.0U
Authority: CN
Inventors: 彭小禹; 廖海鹏
Original assignee: Shenzhen Haixinda Technology Co ltd
Current assignee: Shenzhen Haixinda Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-22
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a dustproof PCBA mainboard for a sound box, in particular to the technical field of PCBA mainboard, the existing device is usually a sealing structure, the mainboard is easy to generate high temperature, the surface of the mainboard can generate dust deposit, the fixing effect is poor, and the device is easy to be damaged by external collision factors, the dustproof PCBA mainboard comprises a lower shell, a buffer component is arranged in the lower shell, the buffer component comprises a mounting plate, connecting plates are symmetrically and fixedly connected with the two sides of the lower surface of the mounting plate, metal elastic pieces are fixedly connected with the lower surface of the mounting plate at equal intervals, connecting arms are symmetrically hinged with the lower surface of the mounting plate, connecting columns are fixedly connected with the lower surface of the lower shell at equal intervals, movable blocks are movably arranged on the outer surfaces of the connecting columns, springs are movably arranged on the outer surfaces of the connecting columns, the temperature of the mainboard main body can be prevented from being overhigh by arranging protective components, the applicability is stronger, and dust can be prevented from being accumulated on the surface of the mainboard main body by a dustproof filter screen, the electronic components can be prevented from being damaged in collision or transportation by arranging the buffer assembly.

Description

A dust protected PCBA mainboard for audio amplifier

Technical Field

The utility model relates to the technical field of PCBA (printed circuit board assembly) mainboards, in particular to a dustproof PCBA mainboard for a sound box.

Background

PCBA is also called as printed circuit board, is an important electronic component, is the supporter of electronic element, is the provider of electronic component circuit connection, because it is made by electronic printing technique, so called as "printed" circuit board, before the printed circuit board appears, the interconnection between the electronic elements all depends on the direct connection of electric wire to form complete circuit, at present, the circuit bread board only exists as effective experimental tool, but the printed circuit board has already become the position of absolute dominance in the electronic industry, in order to control and raise the production qualification rate, the detection work of controlling the quality stability is especially important

However, the existing devices are generally sealing structures, the mainboard is easy to generate high temperature, so that the use effect of the mainboard is reduced, after the device is used for a long time, the surface of the mainboard can generate dust deposition to influence the use effect of the PCBA mainboard, the fixing effect is poor, the PCBA mainboard is easy to damage due to external collision factors, and the electronic elements on the PCBA mainboard are damaged and cannot work. Therefore, those skilled in the art provide a dustproof PCBA main board for a sound box to solve the above problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dustproof PCBA mainboard for a sound box, which can prevent the temperature of a mainboard main body from being too high through arranging a protective component, has stronger applicability, can prevent dust from being accumulated on the surface of the mainboard main body through a dustproof filter screen, and can prevent collision or damage to electronic elements in transportation through arranging a buffer component.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a dust protected PCBA mainboard for audio amplifier, includes lower casing, the internally mounted of casing has the mainboard main part down, the internally mounted of casing has the buffering subassembly down, the buffering subassembly includes the mounting panel, mainboard main part rigid coupling is in the upper surface of mounting panel, the lower surface bilateral symmetry rigid coupling of mounting panel has the connecting plate, the lower surface equidistance rigid coupling of mounting panel has metal shrapnel, the lower surface symmetry of mounting panel articulates there is the linking arm, the lower surface equidistance rigid coupling of casing has the spliced pole down, the surface movable mounting of spliced pole has the movable block, the surface movable mounting of spliced pole has the spring.

As a still further scheme of the utility model: the last surface mounting of casing has last casing down, goes up the internally mounted of casing and has protective assembly, and protective assembly includes dustproof filter screen, and the installation piece is installed to the below of dustproof filter screen, and the upper surface rigid coupling of installation piece has the fan, and the inside of going up the casing is provided with the connection chamber, and the inside equidistance of going up the casing is provided with the venthole.

As a still further scheme of the utility model: the inner walls of the two sides of the lower shell are both provided with a movable cavity, the lower end of the mounting plate is located inside the movable cavity, and the lower end of the connecting plate is fixedly connected to the lower inner wall of the lower shell.

As a still further scheme of the utility model: the lower inner wall equidistance of lower casing is provided with places the chamber, spliced pole rigid coupling in the inside of placing the chamber.

As a still further scheme of the utility model: go up the inside of casing and be provided with the installation cavity, dustproof filter screen and the equal rigid coupling of installation piece in the inner wall of installation cavity, installation cavity and venthole are connected to the connection chamber.

As a still further scheme of the utility model: the both sides of going up the casing all are provided with the air inlet, and the inside rigid coupling of air inlet has the dust screen.

As a still further scheme of the utility model: one end of the spring is fixedly connected to the inner wall of the placing cavity, the other end of the spring is fixedly connected to the side surface of the moving block, and the other end of the connecting arm is hinged to the upper surface of the moving block.

Compared with the prior art, the utility model has the beneficial effects that:

1. can prevent through setting up protection component that mainboard main part body high temperature can improve device's radiating efficiency with the air inlet cooperation, the suitability is stronger, and dustproof filter screen can prevent that the dust from getting into the inside of casing down, and then prevents that the dust from piling up on the surface of mainboard main part.

2. The buffering assembly is arranged, so that the electronic element can be prevented from being damaged in collision or transportation, the anti-seismic performance of the main board body is improved, and the service life of the main board body is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a dustproof PCBA mainboard for a sound box;

FIG. 2 is a schematic structural diagram of a buffer component in a dustproof PCBA mainboard for a sound box;

fig. 3 is a schematic structural diagram of a protection component in a dustproof PCBA motherboard for a sound box.

In the figure: 1. a lower housing; 2. a buffer assembly; 21. mounting a plate; 22. a connecting plate; 23. a metal spring sheet; 24. a connecting arm; 25. a moving block; 26. connecting columns; 27. a spring; 3. a main board main body; 4. an upper housing; 5. a guard assembly; 51. a dustproof filter screen; 52. mounting a block; 53. a fan; 54. a connecting cavity; 55. an air outlet; 6. a mounting cavity; 7. a placement chamber; 8. a moving chamber; 9. an air inlet.

Detailed Description

Example 1

As shown in fig. 1 and 2, a dustproof PCBA mainboard for a sound box comprises a lower casing 1, a mainboard main body 3 is installed inside the lower casing 1, a buffer assembly 2 is installed inside the lower casing 1, the buffer assembly 2 comprises a mounting plate 21, the mainboard main body 3 is fixedly connected to the upper surface of the mounting plate 21, connecting plates 22 are symmetrically and fixedly connected to two sides of the lower surface of the mounting plate 21, moving cavities 8 are arranged on two inner walls of the lower casing 1, the lower end of the mounting plate 21 is located inside the moving cavities 8, the lower end of the connecting plate 22 is fixedly connected to the lower inner wall of the lower casing 1, metal spring pieces 23 are fixedly connected to the lower surface of the mounting plate 21 at equal intervals, connecting arms 24 are symmetrically hinged to the lower surface of the mounting plate 21, connecting columns 26 are fixedly connected to the lower surface of the lower casing 1 at equal intervals, moving blocks 25 are movably installed on the outer surface of the connecting columns 26, springs 27 are movably installed on the outer surface of the connecting columns 26, placing cavities 7 are arranged at equal intervals on the lower inner wall of the lower casing 1, the spliced pole 26 rigid coupling is in placing the inside in chamber 7, and the one end rigid coupling of spring 27 is in placing the inner wall in chamber 7, and the other end rigid coupling of spring 27 is in the side surface of movable block 25, and the other end of connecting arm 24 is articulated with the upper surface of movable block 25, can prevent to collide or cause the damage to electronic component in the transportation.

As shown in fig. 1 and 3, upper surface mounting of lower casing 1 has last casing 4, the both sides of going up casing 4 all are provided with air inlet 9, the inside rigid coupling of air inlet 9 has the dust screen, the internally mounted of going up casing 4 has protective component 5, protective component 5 includes dustproof filter screen 51, installation block 52 is installed to dustproof filter screen 51's below, the upper surface rigid coupling of installation block 52 has fan 53, the inside of going up casing 4 is provided with connection chamber 54, the inside equidistance of going up casing 4 is provided with venthole 55, the inside of going up casing 4 is provided with installation cavity 6, dustproof filter screen 51 and the equal rigid coupling of installation block 52 in the inner wall of installation cavity 6, connection chamber 54 connects installation cavity 6 and venthole 55, can improve device's radiating efficiency, and dustproof filter screen 51 can prevent that the dust from piling up on mainboard main body 3's surface.

The working principle of the utility model is as follows: when using, dustproof filter screen 51 can prevent that the dust from getting into the inside of casing 1 and last casing 4 down, air flow rate on mainboard main part 3 can be accelerated in fan 53 beginning work, outwards blow off the heat that mainboard main part 3 produced through venthole 55 and connecting chamber 54, prevent mainboard main part 3 body high temperature, can improve the radiating efficiency of device with the cooperation of air inlet 9, the suitability is stronger, when the device received the striking, mounting panel 21 downshifts and makes metal shrapnel 23 atress compression, linking arm 24 drives movable block 25 and makes spring 27 atress compression, further reduce the impact force that mainboard main part 3 received, can prevent to collide or cause the damage to electronic component in the transportation, mainboard main part 3 anti-seismic performance has been improved, the life of extension mainboard main part 3.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides a dust protected PCBA mainboard for audio amplifier, including lower casing (1), a serial communication port, the internally mounted of casing (1) has mainboard main part (3) down, the internally mounted of lower casing (1) has buffering subassembly (2), buffering subassembly (2) include mounting panel (21), mainboard main part (3) rigid coupling is in the upper surface of mounting panel (21), the lower surface bilateral symmetry rigid coupling of mounting panel (21) has connecting plate (22), the lower surface equidistance rigid coupling of mounting panel (21) has metal shell fragment (23), the lower surface symmetry of mounting panel (21) articulates there is linking arm (24), the lower surface equidistance rigid coupling of lower casing (1) has spliced pole (26), the surface movable mounting of spliced pole (26) has movable block (25), the surface movable mounting of spliced pole (26) has spring (27).

2. The dustproof PCBA mainboard for a sound box according to claim 1, wherein an upper shell (4) is mounted on the upper surface of a lower shell (1), a protection component (5) is mounted inside the upper shell (4), the protection component (5) comprises a dustproof filter screen (51), a mounting block (52) is mounted below the dustproof filter screen (51), a fan (53) is fixedly connected to the upper surface of the mounting block (52), a connecting cavity (54) is arranged inside the upper shell (4), and air outlet holes (55) are equidistantly formed inside the upper shell (4).

3. The dustproof PCBA mainboard for a sound box according to claim 1, wherein the inner walls of two sides of the lower shell (1) are provided with moving cavities (8), the lower end of the mounting plate (21) is located inside the moving cavities (8), and the lower end of the connecting plate (22) is fixedly connected to the lower inner wall of the lower shell (1).

4. The dustproof PCBA mainboard for loudspeaker box according to claim 1, characterized in that the lower inner wall of the lower casing (1) is provided with placing cavities (7) at equal intervals, and the connecting columns (26) are fixedly connected inside the placing cavities (7).

5. The dustproof PCBA mainboard for a sound box according to claim 2, wherein a mounting cavity (6) is arranged inside the upper shell (4), the dustproof filter screen (51) and the mounting block (52) are fixedly connected to the inner wall of the mounting cavity (6), and the connecting cavity (54) is connected with the mounting cavity (6) and the air outlet hole (55).

6. The dustproof PCBA mainboard for loudspeaker box according to claim 2, characterized in that air inlets (9) are arranged on both sides of the upper shell (4), and a dustproof net is fixedly connected inside the air inlets (9).

7. The dustproof PCBA mainboard for a sound box according to claim 4, characterized in that one end of the spring (27) is fixedly connected to the inner wall of the placing cavity (7), the other end of the spring (27) is fixedly connected to the side surface of the moving block (25), and the other end of the connecting arm (24) is hinged to the upper surface of the moving block (25).