Panel breathable horn

Abstract

The utility model discloses a flat breathable loudspeaker, which comprises a sound frame and a sound film arranged at the top of the sound frame, a sound basin is arranged in the sound frame, and the sound basin is provided with a magnetic assembly and a vibration assembly for driving the sound film to produce sound; the sound film comprises a film base body, the surface of the film base body is provided with a middle pasting film and a waterproof breathable film from inside to outside, the middle pasting film is uniformly provided with a plurality of linearly arranged heat dissipation holes, and the waterproof breathable film is bonded on the middle pasting film, so that dust, sundries and water can be prevented from entering the loudspeaker. And meanwhile, uniform heat dissipation holes are formed in the middle film, so that air circulation can be effectively accelerated, heat generated in the working process of the loudspeaker can be quickly dissipated, and the heat dissipation efficiency is improved under the condition that the tone quality of the loudspeaker is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a flat, breathable loudspeaker. Background Technology

[0002] A loudspeaker is an electroacoustic transducer used in various electronic products such as mobile phones and tablets. Most loudspeakers are thin products. Due to space and shape limitations, their heat dissipation and ventilation performance are poor. When the heat dissipation performance is poor, heat will accumulate inside the loudspeaker, which will affect the magnetism of the magnet inside the loudspeaker. When the ventilation is poor, there will be a difference between the internal air pressure and the external air pressure when the loudspeaker is working. This difference may affect the sound quality and volume. Both of these situations will lead to sound distortion. Therefore, a loudspeaker that can efficiently dissipate heat and allow ventilation during sound production is needed. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a flat breathable speaker, which improves the clarity and realism of the speaker sound by improving the speaker diaphragm structure.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides a flat, breathable speaker, including a speaker frame and a diaphragm disposed on top of the speaker frame. A cone is disposed within the speaker frame, and the cone is equipped with a magnetic component and a vibrating component that drives the diaphragm to produce sound. Specifically, the magnetic component includes several inner magnets disposed at the center of the voice coil and side magnets disposed around the voice coil. The inner and side magnets are permanent magnets, forming an internal magnetic structure to provide a stable magnetic field for the voice coil. The vibrating component includes several voice coils, which are arranged in a matrix or sleeve arrangement within the cone. The voice coils are bonded to the diaphragm. The voice coils are interconnected via circuitry, and the voice coils are connected to an external circuit via an FPC to ensure lossless transmission of audio signals.

[0006] To improve the heat dissipation and breathability of the speaker, the diaphragm includes a diaphragm substrate. From the inside out, a mid-layer membrane and a waterproof and breathable membrane are disposed on the surface of the diaphragm substrate. The mid-layer membrane is a metal membrane or a TPEE membrane, and the metal membrane is a stainless steel membrane or an aluminum membrane. The mid-layer membrane and the waterproof and breathable membrane are bonded together with adhesive, which is one of UV adhesive, acrylic adhesive, water-based diaphragm adhesive, polyurethane adhesive, butyl adhesive, or cyanoacrylate adhesive. The mid-layer membrane has a plurality of linearly arranged heat dissipation holes evenly distributed. The shape of the heat dissipation holes is circular, square, strip-shaped, or other polygonal.

[0007] The beneficial effects of this utility model are as follows:

[0008] The diaphragm of this invention is a layered design of a middle film and a waterproof and breathable film. By bonding the waterproof and breathable film to the middle film, dust, debris and moisture can be prevented from entering the speaker. At the same time, uniform heat dissipation holes are opened on the middle film, which can effectively accelerate air circulation and quickly dissipate the heat generated during the operation of the speaker without affecting the sound quality of the speaker, thereby improving heat dissipation efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of a flat, breathable horn provided in a specific embodiment of this utility model;

[0010] Figure 2 This is an internal schematic diagram of a flat, breathable speaker voice coil in a matrix structure, provided in a specific embodiment of this utility model.

[0011] Figure 3 This is a schematic diagram of the diaphragm structure provided in a specific embodiment of the present invention;

[0012] Figure 4 yes Figure 3 Enlarged diagram of A in the middle;

[0013] Figure 5 This is a schematic diagram of the structure of the film provided in a specific embodiment of this utility model;

[0014] In the picture:

[0015] 1. Sound frame; 2. Sound membrane;

[0016] 11. Cone; 12. Magnetic assembly; 13. Vibrating assembly;

[0017] 21. Membrane substrate; 211. Intermediate membrane; 212. Waterproof and breathable membrane; 2111. Heat dissipation holes;

[0018] 121. Internal magnet; 122. Side magnet;

[0019] 131. Voice coil. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1As shown, this utility model provides a flat, breathable speaker, including a speaker frame 1 and a diaphragm 2 disposed on the top of the speaker frame 1. A cone 11 is disposed inside the speaker frame 1, and the cone 11 is provided with a magnetic component 12 and a vibrating component 13 that drives the diaphragm 2 to produce sound. Specifically, the magnetic component 12 includes several inner magnets 121 disposed at the center of a voice coil 131 and side magnets 122 disposed around the voice coil 131. The inner magnets 121 and side magnets 122 are permanent magnets, forming an internal magnetic structure to provide a stable magnetic field for the voice coil 131. The vibrating component 13 includes several voice coils 131, which are arranged in a matrix or sleeve arrangement within the cone 11. The voice coils 131 and the diaphragm 2 are bonded together. The system consists of several voice coils 131 interconnected by a circuit. The voice coils 131 are connected to an external circuit via an FPC to ensure lossless transmission of audio signals. When sound is emitted, the inner magnet 121 and the outer magnet 122 form an internal magnetic structure within the cone 11 to provide a stable magnetic field for the voice coils 131. When the audio signal current passes through the voice coils 131 via the FPC, the voice coils 131 drive the diaphragm 2 to vibrate, which is ultimately perceived as sound by the human ear. The design of multiple voice coils 131 increases the relative length of the voice coils 131 in the magnetic field, making the electromagnetic force on the voice coils 131 in the magnetic field greater, and giving the diaphragm 2 a larger amplitude. This allows the flat-panel speaker to produce a larger sound in a smaller space and with limited shape.

[0022] Preferably, the diaphragm 2 includes a diaphragm substrate 21. From the inside out, the surface of the substrate 21 is provided with a middle film 211 and a waterproof and breathable film 212. The middle film 211 is a metal film or a TPEE film; the metal film is a stainless steel film or an aluminum film. The middle film 211 and the waterproof and breathable film 212 are bonded together with adhesive, which is one of UV adhesive, acrylic adhesive, water-based diaphragm adhesive, polyurethane adhesive, butyl adhesive, or cyanoacrylate adhesive. By bonding the waterproof and breathable film 212 to the middle film 211, dust, debris, and moisture can be prevented from entering the speaker and damaging internal components, while not affecting sound transmission or the heat dissipation effect of the ventilation holes. The middle film 211 has a plurality of linearly arranged ventilation holes 2111. By setting the middle film 211 and opening multiple ventilation holes 2111 on it, air circulation can be effectively accelerated, heat generated during speaker operation can be quickly dissipated, and heat dissipation efficiency can be improved. The heat dissipation holes of this shape are usually arranged along the length or width of the diaphragm, forming a good airflow channel. At the same time, in order to adjust the airflow effect under different needs and ensure good airflow, the shape of the heat dissipation holes 2111 is circular, square, strip, or other polygonal. Such targeted selection allows air to flow smoothly in the holes, reducing airflow resistance and noise, and avoiding interference with the sound quality of the speaker when the airflow is flowing. In actual products, when the middle film diaphragm 211 is a metal film, it has better rigidity and response speed, can more accurately reproduce audio signals, and emit clear and pure sound. Moreover, the evenly distributed heat dissipation holes 2111 will not cause significant interference to the propagation of sound waves, ensuring sound quality while ensuring the speaker's heat dissipation effect and breathability.

[0023] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A flat panel air vented horn characterized by: The utility model provides a kind of flat panel breathable loudspeaker, including sound frame (1) and the sound film (2) arranged on the top of sound frame (1), the sound frame (1) is provided with sound basin (11), the sound basin (11) is provided with magnetic assembly (12) and the vibration assembly (13) of the sound film (2) with the sound of the vibration assembly (13) is driven to sound;The sound film (2) includes film matrix (21), the surface of film matrix (21) is provided with middle adhesive film (211) and waterproof breathable film (212) from inside to outside, the middle adhesive film (211) is uniformly provided with several linearly arranged heat dissipation holes (2111).

2. The flat panel breathable loudspeaker according to claim 1, wherein: The shape of the heat dissipation hole (2111) is circular, square, strip or other polygon.

3. The flat panel breathable loudspeaker according to claim 1, wherein: The middle adhesive film (211) is a metal film or a TPEE film, and the metal film is a stainless steel film or an aluminum film.

4. The flat panel breathable loudspeaker according to claim 1, wherein: The middle adhesive film (211) and the waterproof breathable film (212) are bonded by glue, and the glue is one of UV glue, acrylic glue, water-based vibration film glue, polyurethane glue, butyl glue and cyanoacrylate glue.

5. The flat panel breathable loudspeaker according to claim 1, wherein: The vibration assembly (13) includes a plurality of voice coils (131), and the plurality of voice coils (131) are arranged in a matrix or a sleeve in the sound basin (11), and the voice coils (131) and the sound film (2) are bonded together.

6. The flat panel breathable loudspeaker according to claim 5, wherein: The magnetic assembly (12) includes a plurality of inner magnets (121) arranged at the center of the voice coil (131) and a plurality of edge magnets (122) arranged around the voice coil (131), the inner magnets (121) and the edge magnets (122) are permanent magnets, and the inner magnets (121) and the edge magnets (122) form an inner magnetic structure to provide a stable magnetic field for the voice coil (131).

7. The flat panel breathable loudspeaker according to claim 6, wherein: The plurality of voice coils (131) are connected to each other by a circuit, and the voice coil (131) is connected to an external circuit by FPC to ensure lossless transmission of audio signals.

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