CN209982808U

CN209982808U - Waterproof type seals glue PCBA mainboard for headphone

Info

Publication number: CN209982808U
Application number: CN201920034353.1U
Authority: CN
Inventors: 熊哲伟
Original assignee: Shenzhen Kailian Telecom Electronics Co Ltd
Current assignee: Shenzhen Kailian Telecom Electronics Co Ltd
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-01-21
Anticipated expiration: 2029-01-09

Abstract

The utility model discloses a headphone seals PCBA mainboard with waterproof type relates to PCBA mainboard technical field, including the PCBA mainboard, the side fixedly connected with stopper of PCBA mainboard, the last fixed surface of PCBA mainboard is connected with the apron, the lower fixed surface of apron is connected with the installation piece, the lower fixed surface of PCBA mainboard is connected with the bottom plate, the last fixed surface of bottom plate is connected with the mounting groove. The utility model discloses in through setting up apron and bottom plate, carry out comprehensive protection to the PCBA mainboard, and can dismantle, rational in infrastructure safe in utilization convenient; the silencing layers are arranged in the cover plate and the bottom plate, and the silencing cotton in the silencing layers absorbs generated noise, so that the silencing effect is improved, and the sound quality of the earphone is improved; through set up the anticollision piece in waterproof anticollision layer when the earphone receives the striking, protection PCBA mainboard does not receive the damage, and waterproofing membrane cooperation waterproof glue in the waterproof anticollision layer carries out comprehensive waterproof to this PCBA mainboard.

Description

Waterproof type seals glue PCBA mainboard for headphone

Technical Field

The utility model relates to a PCBA mainboard technical field specifically is a wear-type earphone seals gluey PCBA mainboard with waterproof type.

Background

PCBA is the whole process that PCB blank board passes through SMT and then passes through DIP plug-in components, is called PCBA for short, this is a writing method commonly used in China, and the standard writing method in Europe and America is PCB 'A, added with "', this is called official custom. Printed circuit boards, also known as printed circuit boards, are important electronic components, support for electronic components, and providers for connecting electronic components. It is called a "printed" circuit board because it is made using electronic printing techniques. Before the advent of printed circuit boards, interconnections between electronic components were completed by direct wire connections. At present, circuit boards exist only as effective experimental tools, and printed circuit boards have become an absolutely dominant position in the electronics industry.

However, people bump easily and make water infiltrate into the earphone carelessly when using the headphone in daily life, and the PCBA mainboard for the headphone among the prior art is directly exposed inside the earphone, can't effectively carry out waterproof and anticollision, slight collision and intaking will lead to the PCBA mainboard to damage, thereby lead to the earphone to damage, the quality of earphone has been influenced greatly, and the earphone requires highly to the amortization, current PCBA mainboard can't effectively carry out the amortization at the in-process that uses, thereby influence earphone tone quality. Therefore, those skilled in the art have provided a waterproof type sealing PCBA motherboard for a headphone to solve the above problems in the background art.

Disclosure of Invention

An object of the utility model is to provide a headphone seals PCBA mainboard with waterproof type to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a wear-type earphone seals gluey PCBA mainboard with waterproof type, includes the PCBA mainboard, the side fixedly connected with stopper of PCBA mainboard, the stopper is provided with four, the last fixed surface of PCBA mainboard is connected with the apron, the last fixed surface of apron is connected with the radiator-grid, the lower fixed surface of apron is connected with the installation piece, the installation piece is provided with six, the lower fixed surface of PCBA mainboard is connected with the bottom plate, the last fixed surface of bottom plate is connected with the mounting groove, the mounting groove is provided with six, the inboard fixedly connected with spacing groove of bottom plate, the spacing groove is provided with four, the front surface fixedly connected with line hole of bottom plate.

As a further aspect of the present invention: the apron includes tongue, first amortization layer and first waterproof anticollision layer, the fixed surface of tongue is connected with the dust screen, the first amortization layer of outside fixedly connected with of tongue, the first waterproof anticollision layer of outside fixedly connected with on first amortization layer.

As a further aspect of the present invention: the bottom plate includes recess, second amortization layer and the waterproof crashproof layer of second, the outside fixed connection in the spacing groove of recess, the outside fixedly connected with second amortization layer of recess, the waterproof crashproof layer of outside fixedly connected with second on second amortization layer, the bottom plate passes through spacing groove and stopper fixed connection with the PCBA mainboard, the bottom plate passes through mounting groove and installation piece fixed connection with the apron.

As a further aspect of the present invention: the utility model discloses a waterproof crashproof layer structure of waterproof crashproof layer, including first amortization layer structure, the inside fixedly connected with amortization cotton of second amortization layer, the inside fixedly connected with waterproofing membrane in second waterproof crashproof layer, the inside fixedly connected with anticollision piece on second waterproof crashproof layer, the outside fixedly connected with waterproofing membrane of anticollision piece, second amortization layer is the same with first waterproof crashproof layer structure.

As a further aspect of the present invention: the silencing cotton is a cocoon cotton-shaped member formed by hot pressing 100% of polyester fiber, the sound absorption coefficient of the silencing cotton reaches 0.94 within the noise range of 125-4000HZ, and the silencing cotton is strongly bonded with the second silencing layer through waterproof glue.

As a further aspect of the present invention: the anticollision piece is the strong firm durable cubic natural rubber of an anti-collision force, the anticollision piece is provided with nine at least, the anticollision piece bonds through waterproof glue power with the waterproof crashproof layer of second, waterproofing membrane is a non-woven fabrics with water-proof effects.

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

1. through set up the amortization layer in apron and bottom plate, the noise that the amortization cotton produced PCBA mainboard during operation in the amortization layer is absorbed, and the amortization cotton is the cotton shape component of cocoon that 100% polyester fiber processed through the hot pressing, and the amortization cotton reaches 0.94 at 125 + 4000HZ noise within range sound absorption coefficient, and sound absorbing effect is good, improves the silence effect to improve earphone tone quality.

2. Through set up the anticollision piece in waterproof anticollision layer when the earphone receives the striking, reduce the striking for the impact that the PCBA mainboard brought, the protection PCBA mainboard does not receive the damage, improves practicality and security, and waterproofing membrane cooperation waterproof glue in the waterproof anticollision layer carries out comprehensive waterproof to this PCBA mainboard, improves water-proof effects.

3. Through setting up apron and bottom plate, tongue and recess form a box body and deposit the PCBA mainboard in apron and the bottom plate, and stopper and spacing groove fix the PCBA mainboard in the recess of bottom plate, connect apron and bottom plate through installation piece and mounting groove, carry out comprehensive protection to the PCBA mainboard, and can dismantle, it is safe convenient to use rational in infrastructure.

Drawings

FIG. 1 is a schematic structural diagram of a waterproof type sealing glue PCBA mainboard for a headphone;

FIG. 2 is a schematic structural diagram of a cover plate in a waterproof type sealing glue PCBA main board for a headphone;

FIG. 3 is a schematic structural diagram of a bottom plate in a waterproof type sealing glue PCBA mainboard for a headphone;

fig. 4 is a schematic structural diagram of a second sound damping layer and a second waterproof anti-collision layer in a waterproof type glue-sealed PCBA mainboard for a headphone.

In the figure: 1. a cover plate; 2. PCBA mainboard; 3. a base plate; 4. a heat-dissipating web; 5. mounting blocks; 6. a limiting block; 7. a limiting groove; 8. mounting grooves; 9. a wire hole; 10. a convex groove; 11. a first sound-deadening layer; 12. a first waterproof and anti-collision layer; 13. a dust screen; 14. a groove; 15. a second sound-deadening layer; 16. a second waterproof and anti-collision layer; 17. silencing cotton; 18. waterproof coiled materials; 19. and (4) an anti-collision block.

Detailed Description

Referring to fig. 1-4, in the embodiment of the present invention, a waterproof type sealing adhesive PCBA motherboard for a headphone comprises a PCBA motherboard 2, a stopper 6 is fixedly connected to a side surface of the PCBA motherboard 2, the stopper 6 is provided with four, a cover plate 1 is fixedly connected to an upper surface of the PCBA motherboard 2, a heat dissipation net 4 is fixedly connected to an upper surface of the cover plate 1, a mounting block 5 is fixedly connected to a lower surface of the cover plate 1, the mounting block 5 is provided with six, a bottom plate 3 is fixedly connected to a lower surface of the PCBA motherboard 2, a mounting groove 8 is fixedly connected to an upper surface of the bottom plate 3, the mounting groove 8 is provided with six, a limiting groove 7 is fixedly connected to an inner side of the bottom plate 3, the limiting groove 7 is provided with four, a wire hole 9 is fixedly connected to a front surface of the bottom plate 3, the cover plate 1 comprises a convex groove 10, a first sound damping, the outer side of the convex groove 10 is fixedly connected with a first sound-deadening layer 11, the outer side of the first sound-deadening layer 11 is fixedly connected with a first waterproof anti-collision layer 12, the bottom plate 3 comprises a groove 14, a second sound-deadening layer 15 and a second waterproof anti-collision layer 16, the outer side of the groove 14 is fixedly connected with a limiting groove 7, the outer side of the groove 14 is fixedly connected with a second sound-deadening layer 15, the outer side of the second sound-deadening layer 15 is fixedly connected with a second waterproof anti-collision layer 16, the bottom plate 3 is fixedly connected with the PCBA mainboard 2 through the limiting groove 7 and a limiting block 6, the bottom plate 3 is fixedly connected with the cover plate 1 through a mounting groove 8 and a mounting block 5, the cover plate 1 and the bottom plate 3 are arranged, the convex groove 10 and the groove 14 in the cover plate 1 and the bottom plate 3 form a box for storing the PCBA mainboard, the limiting block 6 and the limiting groove 7 fix the PCBA mainboard in, carry out comprehensive protection to PCBA mainboard 2, and can dismantle, rational in infrastructure safe in utilization is convenient.

The interior of the second sound-deadening layer 15 is fixedly connected with sound-deadening cotton 17, the interior of the second waterproof anti-collision layer 16 is fixedly connected with a waterproof coiled material 18, the interior of the second waterproof anti-collision layer 16 is fixedly connected with an anti-collision block 19, the outer side of the anti-collision block 19 is fixedly connected with the waterproof coiled material 18, the second sound-deadening layer 15 has the same structure as the first sound-deadening layer 11, the second waterproof anti-collision layer 16 has the same structure as the first waterproof anti-collision layer 12, the sound-deadening cotton 17 is a cocoon-cotton-shaped member formed by heat pressing 100% polyester fiber, the sound-deadening coefficient of the sound-deadening cotton 17 reaches 0.94 in the noise range of 125 + 4000HZ, the sound-deadening cotton 17 and the second sound-deadening layer 15 are strongly bonded by waterproof glue, the sound-deadening layer is arranged in the cover plate 1 and the bottom plate 3, the sound-deadening cotton 17 in the sound-deadening layer absorbs noise generated when the PCB, amortization is cotton 17 reaches 0.94 in 125-charge 4000HZ noise range sound absorption coefficient, sound absorbing effect is good, improve the silence effect, thereby improve earphone tone quality, anticollision piece 19 is the strong firm durable cubic natural rubber of anti-impact force, anticollision piece 19 is provided with nine at least, anticollision piece 19 bonds through waterproof glue power with second waterproof anticollision layer 16, waterproofing membrane 18 is a non-woven fabrics with water-proof effects, when the earphone receives the striking through set up anticollision piece 19 in waterproof anticollision layer, reduce the impact force that the striking brought for PCBA mainboard 2, protection PCBA mainboard 2 does not receive the damage, improve practicality and security, waterproofing membrane 18 cooperation waterproof glue in the waterproof anticollision layer carries out comprehensive waterproof to this PCBA mainboard 2, improve water-proof effects.

The utility model discloses a theory of operation is: firstly, the wire of the PCBA mainboard 2 penetrates out through a wire hole 9, then the PCBA mainboard 2 is connected with the bottom plate 3, a limiting block 6 outside the PCBA mainboard 2 is connected with a limiting groove 7 in the bottom plate 3 in a clamping way, the PCBA mainboard 2 is fixed in a groove 14 of the bottom plate 3, after the connection is finished, the bottom plate 3 is connected with the cover plate 1, a mounting groove 8 on the upper surface of the bottom plate 3 is mutually clamped with a mounting block 5 on the lower surface of the cover plate 1, the connection of the bottom plate 3 and the cover plate 1 is finished, a box body for storing the PCBA is formed by a convex groove 10 and a groove 14 in the cover plate 1 and the bottom plate 3, the PCBA mainboard is fixed in the groove 14 of the bottom plate 3 by the limiting block 6 and the limiting groove 7, the cover plate 1 and the bottom plate 3 are connected through the mounting block 5 and the mounting groove 8, the PCBA mainboard 2 is comprehensively protected and can be disassembled, the structure is reasonable, the silencing cotton 17 in the silencing layer absorbs the noise generated by the PCBA mainboard during working, the silencing cotton 17 is a cocoon cotton-shaped component formed by thermally pressing 100% polyester fiber, the sound absorption coefficient of the silencing cotton 17 in the noise range of 125-4000HZ reaches 0.94, the sound absorption effect is good, the silencing effect is improved, thereby improving the sound quality of the earphone, the anti-collision block 19 is arranged in the waterproof anti-collision layer, when the earphone is impacted, reduce the impact that the striking brought for PCBA mainboard 2, anticollision piece 19 is the strong firm durable cubic natural rubber anticollision effect of anti-impact, protection PCBA mainboard 2 does not receive the damage, improve practicality and security, waterproofing membrane 18 cooperation waterproof glue in the waterproof anticollision layer carries out comprehensive waterproof to this PCBA mainboard 2, improve water-proof effects, the radiator-grid 4 of apron 1 upper surface dispels the heat to PCBA mainboard 2 during operation, the dust screen 13 on 3 surfaces of bottom plate carries out dustproof processing to the PCBA mainboard.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A waterproof type glue sealing PCBA mainboard for a headset comprises a PCBA mainboard (2), it is characterized in that the side surface of the PCBA mainboard (2) is fixedly connected with a limiting block (6), four limiting blocks (6) are arranged, the upper surface of the PCBA mainboard (2) is fixedly connected with a cover plate (1), the upper surface of the cover plate (1) is fixedly connected with a heat radiating net (4), the lower surface of the cover plate (1) is fixedly connected with a mounting block (5), six mounting blocks (5) are arranged, the lower surface of the PCBA main board (2) is fixedly connected with a bottom plate (3), the upper surface of the bottom plate (3) is fixedly connected with six mounting grooves (8), the number of the mounting grooves (8) is six, the inner side of the bottom plate (3) is fixedly connected with four limiting grooves (7), and the front surface of the bottom plate (3) is fixedly connected with wire holes (9).

2. The waterproof type sealing glue PCBA mainboard for the headset according to claim 1, wherein the cover plate (1) comprises a convex groove (10), a first sound-deadening layer (11) and a first waterproof and anti-collision layer (12), a dust-proof net (13) is fixedly connected to the surface of the convex groove (10), the first sound-deadening layer (11) is fixedly connected to the outer side of the convex groove (10), and the first waterproof and anti-collision layer (12) is fixedly connected to the outer side of the first sound-deadening layer (11).

3. The waterproof type seals and glues PCBA mainboard for headphone of claim 1, characterized in that, bottom plate (3) includes recess (14), second noise damping layer (15) and second waterproof anticollision layer (16), the outside fixed connection in spacing groove (7) of recess (14), the outside fixed connection in second noise damping layer (15) of second noise damping layer (15) has second waterproof anticollision layer (16), bottom plate (3) and PCBA mainboard (2) are through spacing groove (7) and stopper (6) fixed connection, bottom plate (3) and apron (1) are through mounting groove (8) and installation piece (5) fixed connection.

4. The waterproof type seals and glues PCBA mainboard for headphone of claim 3, characterized in that, amortization cotton (17) is fixedly connected to inside of second noise damping layer (15), waterproofing membrane (18) is fixedly connected to inside of second waterproof anticollision layer (16), anticollision piece (19) is fixedly connected to inside of second waterproof anticollision layer (16), waterproofing membrane (18) is fixedly connected to the outside of anticollision piece (19), second noise damping layer (15) and first noise damping layer (11) the same structure, second waterproof anticollision layer (16) and first waterproof anticollision layer (12) the same structure.

5. The PCBA main board for the waterproof type sealing compound of the headphone as claimed in claim 4, wherein the sound absorption cotton (17) is a cocoon cotton-shaped member formed by hot pressing 100% polyester fiber, the sound absorption coefficient of the sound absorption cotton (17) reaches 0.94 within the noise range of 125-4000HZ, and the sound absorption cotton (17) and the second sound absorption layer (15) are strongly bonded through waterproof glue.

6. The PCBA mainboard is characterized in that the anti-collision block (19) is block-shaped natural rubber with strong impact resistance, firmness and durability, at least nine anti-collision blocks (19) are arranged, the anti-collision blocks (19) are strongly bonded with the second waterproof and anti-collision layer (16) through waterproof glue, and the waterproof coiled material (18) is non-woven fabric with a waterproof effect.