CN220156655U

CN220156655U - Loudspeaker

Info

Publication number: CN220156655U
Application number: CN202322622948.8U
Authority: CN
Inventors: 嵇丽霞; 秦英杰
Original assignee: Gettop Acoustic Co Ltd
Current assignee: Gettop Acoustic Co Ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2023-12-08
Anticipated expiration: 2033-09-27

Abstract

The utility model provides a loudspeaker, which comprises an integrally formed support, a vibrating diaphragm, a dome and a waterproof and breathable film, wherein the waterproof and breathable film is positioned on the outer side of the dome, the edge of the waterproof and breathable film is fixed in a sealing manner through a pressing strip integrated with the dome, the pressing strip is arranged in a circumferentially closed manner, and the dome is provided with a through hole in an area covered by the waterproof and breathable film. Through setting up integrated into one piece's support, vibrating diaphragm, dome and waterproof ventilated membrane to offer the through-hole on the dome, replace traditional waterproof ventilated membrane to paste the technology on the dome, realize vibrating diaphragm, support, dome, waterproof ventilated membrane and form an organic whole subassembly in the mould, simplify later stage speaker technology equipment, solve traditional waterproof ventilated membrane back of the body adhesive force and not enough lead to the problem of gumming under extreme temperature, waterproof ventilated membrane position accuracy is higher in the mould, solve traditional waterproof ventilated membrane and the problem that the skew stifled hole that the bonding brought influences the leakage volume behind the dome, realize speaker stable reliability and reliable self-pressure release function.

Description

Loudspeaker

Technical Field

The utility model relates to electronic equipment, in particular to a loudspeaker.

Background

At present, waterproof requirements of wearing type electronic products on devices are higher and higher, holes are reduced as much as possible on the whole machine, besides, when a waterproof loudspeaker or microphone is assembled in a sealed rear cavity, the problem that the loudspeaker diaphragm is externally bulging or the microphone fails due to the fact that rear cavity gas cannot be discharged can be caused, and the using effect of wearing electronics is affected.

Traditional waterproof wearing is whole to open the aperture of a certain amount and diameter on speaker diaphragm dome, diaphragm dome outside paste waterproof ventilated membrane, replace the complete machine leak hole in the design, utilize diaphragm dome to open the structure of Kong Niantie waterproof ventilated membrane and balance the inside and outside atmospheric pressure of complete machine, solve the unable exhaust problem of back chamber gas to a certain extent, but to speaker size is little, waterproof ventilated membrane pastes the waterproof speaker of the limit of width ratio, traditional ventilated membrane bonds and does not have sufficient bonding width, lead to the bonding force not enough, the ventilated membrane drops the problem easily appears under the 5ATM waterproof test, influence complete machine waterproof effect, and paste waterproof ventilated membrane position precision after and poor, the ventilated membrane glues that the polarization stops diaphragm dome trompil easily appears, and then influence the problem of gas leakage volume. Therefore, a scheme is urgently needed, the reliability of waterproof ventilation fixation can be realized for a small-size loudspeaker, the stability of a waterproof test is guaranteed, the assembly precision of a waterproof ventilation film is required to be solved, the effect of self pressure relief of the loudspeaker is guaranteed to be stable, and a user can obtain good experience.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a loudspeaker.

The aim of the utility model is achieved by the following technical measures: a loudspeaker, characterized by: including integrated into one piece's support, vibrating diaphragm, ball top and waterproof ventilated membrane, waterproof ventilated membrane is located the ball top outside, waterproof ventilated membrane's edge is sealed fixedly through the layering with ball top an organic whole, the layering circumference seals the setting, the ball top has seted up the through-hole in the region that waterproof ventilated membrane covered.

As a preferable scheme, the outside of ball top is provided with the arch, the arch is circumference and seals the setting, waterproof ventilated membrane is located protruding inboard, and the vibrating diaphragm is located protruding outside.

As a preferable scheme, the thickness of the bulge in the vibration direction is larger than that of the waterproof breathable film, and the height of the bulge is higher than the plane of the outer surface of the waterproof breathable film.

As a preferable scheme, the pressing strip and the bulge are integrally arranged, and the pressing strip is arranged in a circumferential sealing manner along the inner side of the bulge.

As a preferable scheme, the periphery of the pressing strip is connected with the bulge, and the pressing strip extends towards the center and wraps and fixes the edge of the waterproof breathable film.

As a preferable scheme, the thickness of the pressing strip is H, H is not smaller than the thickness of the waterproof breathable film, and the width of the pressing strip is L, wherein L is more than or equal to 2H.

As a preferable scheme, the outside of ball top is provided with the strengthening rib, the both ends of strengthening rib communicate with the ball top respectively, the strengthening rib is located the one side that the ball top was kept away from to waterproof ventilated membrane, the strengthening rib sets up with waterproof ventilated membrane laminating.

As a preferred embodiment, the through holes are arranged along the vibration direction, and one or more through holes are arranged.

As a preferable scheme, the vibrating diaphragm is positioned at the circumference of the dome, the support is positioned at the circumference of the vibrating diaphragm, and the support is arranged on the basin frame.

As a preferable scheme, the inner side of the dome is arranged in a plane, and a voice coil is adhered to the inner side of the dome.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages that: through setting up integrated into one piece's support, vibrating diaphragm, dome and waterproof ventilated membrane to offer the through-hole on the dome, replace traditional waterproof ventilated membrane to paste the technology on the dome, realize vibrating diaphragm, support, dome, waterproof ventilated membrane and form an organic whole subassembly in the mould, simplify later stage speaker technology equipment, solve traditional waterproof ventilated membrane back of the body adhesive force and not enough lead to the problem of gumming under extreme temperature, waterproof ventilated membrane position accuracy is higher in the mould, solve traditional waterproof ventilated membrane and the problem that the skew stifled hole that the bonding brought influences the leakage volume behind the dome, realize speaker stable reliability and reliable self-pressure release function.

The utility model is further described below with reference to the drawings and the detailed description.

Drawings

Fig. 1 is a schematic diagram of the overall exploded structure of a loudspeaker according to the present utility model.

Fig. 2 is a schematic overall sectional structure of a speaker according to the present utility model.

Fig. 3 is a schematic view of a waterproof and breathable film fixing structure of a speaker according to the utility model.

Fig. 4 is a schematic diagram of a through hole structure of a speaker according to the present utility model.

Fig. 5 is a schematic diagram of a dome injection molding mating structure of a speaker according to the present utility model.

Fig. 6 is a schematic view of a partial enlarged structure of a speaker according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1 to 6, a speaker comprises a bracket 1, a vibrating diaphragm 2, a dome 3 and a waterproof and breathable film 4 which are integrally formed. The vibrating diaphragm 2 is the silica gel material, and ball top 3 is located vibrating diaphragm 2 intermediate position, and ball top 3 is PEN or PEI material, and waterproof ventilated membrane 4 moulds plastics in the outside of ball top 3, and support 1 is located vibrating diaphragm 2's circumference, and support 1 is PPA or PC material that has certain hardness for support and fixed vibrating diaphragm 2. The bracket 1 is arranged on the basin stand 5.

One side of the dome 3 is fixedly connected with a voice coil 6, the other side is injection-molded with a waterproof breathable film 4, one side of the dome 3, which is close to the voice coil 6, is defined as the inner side of the dome 3, and the other side is defined as the outer side of the dome 3.

As shown in fig. 3-4, in this embodiment, the dome 3 is rectangular with a chamfer, the waterproof and breathable film 4 has the same shape as the dome 3, and is concentric with the dome 3, and the area of the waterproof and breathable film 4 is integrally smaller than the area of the dome 3, so that the waterproof and breathable film 4 is convenient to fix. The waterproof breathable film 4 may be provided in other shapes as the case may be.

The outside of the dome 3 is provided with a bulge 7, and the bulge 7 is arranged in a circumferential sealing way. The waterproof ventilated membrane 4 is arranged on the inner side of the bulge 7, the vibrating diaphragm 2 is arranged on the outer side of the bulge 7, in the embodiment, one side close to the center of the dome 3 is the inner side, and one side far away from the center of the dome 3 is the outer side.

As shown in fig. 5 to 6, the thickness of the protrusion 7 in the vibration direction is larger than the thickness of the waterproof and breathable film 4, and the height of the protrusion 7 is higher than the plane in which the outer surface of the waterproof and breathable film 4 is located, in this embodiment, the surface of the waterproof and breathable film 4 away from the dome 3 is defined as the outer surface. The bulge 7 is provided with a pressing strip 8 towards the waterproof breathable film 4, the pressing strip 8 wraps and fixes the edge of the waterproof breathable film 4, the pressing strip 8 is also in circumferential sealing arrangement, and the tightness of the circumferential connection part of the waterproof breathable film 4 is ensured.

As shown in FIG. 6, the thickness of the pressing strip 8 is H, H is not smaller than the thickness of the waterproof breathable film 4, the width of the pressing strip 8 is L, L is larger than or equal to 2H, and the fixing stability of the waterproof breathable film 4 is ensured. In this embodiment, the side surface of the pressing strip 8 far away from the waterproof and breathable film 4 is flush with the surface of the protrusion 7.

As shown in fig. 3, the outer side of the dome 3 is provided with a reinforcing rib 9, two ends of the reinforcing rib 9 are respectively communicated with the dome 3, and the reinforcing rib 9 is positioned on one side of the waterproof breathable film 4 away from the dome 3. The strengthening rib 9 and waterproof ventilated membrane 4 laminating set up, and waterproof ventilated membrane 4 can be pushed down to strengthening rib 9, promotes ball top 3 structural stability, ensures speaker vibration system rigidity, reduces sensitivity high frequency curve discounting risk. In this embodiment, the reinforcing ribs 9 are provided in a strip shape, and other numbers or other shapes may be provided according to the specific situation.

The ball top 3, the bulge 7, the pressing strip 8 and the reinforcing ribs 9 are made of PEN or PEI materials, the periphery of the ball top 3 is connected with the vibrating diaphragm 2, the periphery of the waterproof breathable film 4 is fixed by pressing materials at the middle position, the surface of the ball top 3 bonded with the voice coil 6 is a plane, the bulge 7 is designed at the connecting position of the vibrating diaphragm 2 and the waterproof breathable film 4 at the outer side of the ball top 3, the reinforcing ribs 9 are arranged in the middle of the ball top 3, and the waterproof breathable film 4 is pressed.

The dome 3 is provided with a through hole 10 along the vibration direction, and the through hole 10 is arranged in the area covered by the waterproof and breathable film 4. The through holes 10 can be one or more, round holes or square holes, and the specific number and shape can be set according to specific situations. In this embodiment, as shown in fig. 2 and fig. 4, the through hole 10 is set at the bonding position of the voice coil 6 and the reinforcing rib 9, so as to realize the air-permeable, waterproof and front-rear cavity air pressure balance effects, the through hole 10 is used for connecting the rear cavity air and the front cavity air, and when the whole loudspeaker diaphragm 2 is assembled, the rear cavity air is circulated into the front cavity air and the atmosphere through the through hole 10 of the dome 3 and the waterproof and air-permeable membrane 4, so that the problem that the volume of the rear cavity cannot be discharged under the leak hole of the whole loudspeaker diaphragm 2, resulting in the outer drum of the loudspeaker diaphragm is solved.

In this embodiment, waterproof ventilated membrane 4 material is pure ptfe, is a polytetrafluoroethylene microporous membrane, because of encapsulation solidification at PEN or PEI material's ball top 3 surface of moulding plastics, cancel traditional waterproof ventilated membrane 4 gum, effectively solve under the 5ATM waterproof test traditional ventilated membrane gum adhesion force insufficient or gum temperature resistant not enough influence speaker use's problem.

During the shaping, fixed waterproof ventilated membrane in the ball top shaping process of moulding plastics, waterproof ventilated membrane is with ball top injection molding parcel formation layering all around, one side of keeping away from the ball top forms the strengthening rib with ball top material moulding plastics, wholly form ball top and waterproof ventilated membrane subassembly, afterwards mould plastics vibrating diaphragm and support on above-mentioned subassembly, realize vibrating diaphragm, support, ball top, waterproof ventilated membrane and form integrative subassembly in the mould, simplify later stage speaker technology equipment, solve traditional waterproof ventilated membrane back adhesive force and not enough glue the problem of opening under extreme temperature, waterproof ventilated membrane position accuracy is higher in the mould, solve the skew stifled hole that traditional waterproof ventilated membrane and ball top postbonding brought influence the problem of leakage volume, realize speaker stable reliability and reliable self-pressure release function.

Claims

1. A loudspeaker, characterized by: including integrated into one piece's support, vibrating diaphragm, ball top and waterproof ventilated membrane, waterproof ventilated membrane is located the ball top outside, waterproof ventilated membrane's edge is sealed fixedly through the layering with ball top an organic whole, the layering circumference seals the setting, the ball top has seted up the through-hole in the region that waterproof ventilated membrane covered.

2. A loudspeaker according to claim 1, wherein: the outside of ball top is provided with the arch, the arch is circumference and seals the setting, waterproof ventilated membrane is located protruding inboard, and the vibrating diaphragm is located protruding outside.

3. A loudspeaker according to claim 2, wherein: the thickness of the bulge in the vibration direction is greater than the thickness of the waterproof breathable film, and the height of the bulge is higher than the plane where the outer surface of the waterproof breathable film is located.

4. A loudspeaker according to claim 2, wherein: the pressing strip and the bulge are integrally arranged, and the pressing strip is circumferentially sealed along the inner side of the bulge.

5. A loudspeaker according to claim 4, wherein: the periphery of the pressing strip is connected with the bulge, and the pressing strip extends towards the center and wraps and fixes the edge of the waterproof breathable film.

6. A loudspeaker according to claim 1, wherein: the thickness of the pressing strip is H, H is not smaller than the thickness of the waterproof breathable film, and the width of the pressing strip is L which is more than or equal to 2H.

7. A loudspeaker according to claim 1, wherein: the outside of ball top is provided with the strengthening rib, the both ends of strengthening rib communicate with the ball top respectively, the strengthening rib is located one side that waterproof ventilated membrane kept away from the ball top, the strengthening rib sets up with waterproof ventilated membrane laminating.

8. A loudspeaker according to claim 1, wherein: the through holes are arranged along the vibration direction, and one or more through holes are arranged.

9. A loudspeaker according to any one of claims 1 to 8, wherein: the vibrating diaphragm is located in the circumference of the dome, the support is located in the circumference of the vibrating diaphragm, and the support is mounted on the basin frame.

10. A loudspeaker according to any one of claims 1 to 8, wherein: the inner side of the dome is arranged in a plane, and the voice coil is adhered to the inner side of the dome.