Waterproof flat horn

Abstract

The utility model discloses a waterproof flat horn, 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 joint of the sound frame and the edge of the sound film is provided with a step part which is in step-shaped cooperation, and the step-shaped gap of the joint of the sound frame and the sound film is filled with adhesive glue. According to the utility model, the step part which is matched in a step shape is arranged at the edge connection part of the sound frame and the sound film, so that the bending path is arranged at the edge connection part of the sound frame and the sound film, water is difficult to enter a sound basin of the loudspeaker, and a good waterproof function is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field especially relates to a prevent horizontal board loudspeaker. BACKGROUND

[0002] The loudspeaker, namely the speaker, has multiple configurations due to the space volume and shape restrictions, and the thin flat loudspeaker is commonly used in electronic products such as tablet computers, mobile phones and vehicle audio and the like. In order to ensure the normal sound of the loudspeaker and its internal components, a waterproof structure is usually provided for the loudspeaker, such as the Chinese patent application No. CN202223250337.7 discloses a waterproof loudspeaker, which is provided with a cover plate, an inner connecting ring and an outer connecting ring. The cover plate and the outer connecting ring are sleeved on the outer side of the support, and the inner connecting ring and the outer connecting ring are screwed, so as to fix the cover plate. The cover plate plays a waterproof protection role on the drum paper and the dust cap, thereby avoiding the corrosion and rust of the components caused by water entering the loudspeaker. The defect of this scheme is that it still cannot effectively prevent the penetration of water at the edge of the sound film and the shell, so it still cannot effectively improve the waterproof performance of the loudspeaker. SUMMARY

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a prevent horizontal board loudspeaker, which sets a waterproof structure at the edge of the sound film and the loudspeaker shell to further improve the waterproof performance and sound quality of the loudspeaker.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a prevent horizontal board loudspeaker, which comprises a sound frame and a sound film arranged on the top of the sound frame, and the sound frame is provided with a sound cone. The sound cone is provided with a magnetic assembly and a vibration assembly for driving the sound film to sound. Specifically, the magnetic assembly comprises a plurality of inner magnets arranged at the center of the voice coil and a plurality of edge magnets arranged around the voice coil. The inner magnets and the edge magnets are permanent magnets, and the inner magnets and the edge magnets form an inner magnetic structure to provide a stable magnetic field for the voice coil. The vibration assembly comprises a plurality of voice coils, and the voice coils are arranged in a matrix or a sleeve in the sound cone. The voice coils and the sound film are bonded together. The voice coils are connected to each other through a circuit, and the voice coil is connected to an external circuit through FPC to ensure the lossless transmission of audio signals.

[0006] Meanwhile, the edge connecting part of the sound frame and the sound film is provided with a stepped part in a stepped matching mode, the stepped part outside the edge connecting part of the sound frame and the sound film is higher than the stepped part inside the edge connecting part of the sound frame and the sound film, the stepped gap of the edge connecting part of the sound frame and the sound film is filled with bonding glue, and the bonding glue is one of UV glue, acrylic glue, water-based vibration film glue, polyurethane glue, butyl glue and cyanoacrylate glue.

[0007] The utility model discloses the beneficial effects are:

[0008] The utility model discloses the edge connecting part of the sound frame and the sound film is provided with a stepped part in a stepped matching mode, so that the water is difficult to enter the sound basin inside the loudspeaker by setting the bending path at the edge connecting part of the sound frame and the sound film, to guarantee good waterproof function. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a kind of schematic diagram of preventing horizontal board loudspeaker overall structure provided in example 1;

[0010] Figure 2 It is a kind of internal structure schematic diagram when the voice coil of the loudspeaker of preventing horizontal board provided in example 1 is in sleeve type arrangement;

[0011] Figure 3 It is a kind of internal structure schematic diagram when the voice coil of the loudspeaker of preventing horizontal board provided in example 1 is in matrix type arrangement;

[0012] Figure 4 It is a kind of sectional principle schematic diagram when the voice coil of the loudspeaker of preventing horizontal board provided in example 1 is in matrix type arrangement;

[0013] Figure 5 It is Figure 4 Enlarged schematic diagram of A in middle;

[0014] Figure 6 It is a kind of structure schematic diagram of the edge connecting part of the sound frame and the sound film provided in example 2;

[0015] In the figure:

[0016] 1, sound frame;2, sound film;3, bonding glue;

[0017] 11, sound basin;12, magnetic assembly;13, vibration assembly;14, stepped part;

[0018] 121, inner magnet;122, edge magnet;

[0019] 131, voice coil. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further illustrated by specific implementation mode in combination with the drawings.

[0021] Example 1: This utility model provides a waterproof flat panel speaker, such as... Figure 1 and Figure 4 As shown, the device includes a speaker frame 1 and a diaphragm 2 disposed on top of the speaker frame 1. A cone 11 is disposed within the speaker frame 1. The cone 11 is equipped 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, such as... Figure 2 and 3 As shown, several voice coils 131 are arranged in a matrix or sleeve arrangement within the cone 11. The voice coils 131 and the diaphragm 2 are bonded together, and the voice coils 131 are interconnected through circuits. The voice coils 131 are also connected to external circuits through an FPC to ensure lossless transmission of audio signals. Thus, 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 from 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 can increase 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 emit a larger sound in a smaller space and with limited shape.

[0022] Preferably, to improve waterproof performance, a stepped portion 14 is provided at the edge connection between the speaker frame 1 and the diaphragm 2, such as... Figure 5 As shown, it is a single-step design, and the height of the outer step 14 at the edge connection between the speaker frame 1 and the diaphragm 2 is higher than the height of the inner step 14. In this way, by setting a bending path at the edge connection between the speaker frame 1 and the diaphragm 2, it is difficult for water to enter the inside of the speaker cone 11, so as to ensure good waterproof function. The stepped gap at the connection between the speaker frame 1 and the diaphragm 2 is filled with adhesive 3, and the adhesive 3 is one of UV glue, acrylic glue, water-based diaphragm glue, polyurethane glue, butyl glue, and cyanoacrylate glue.

[0023] Example 2: Unlike Example 1, the step portion 14 is multi-step, which further lengthens the bending path at the edge connection between the speaker frame 1 and the diaphragm 2, so as to further prevent moisture from entering the speaker cone 11 from the edge of the speaker frame 1 and the diaphragm 2, thereby improving the waterproof performance.

[0024] The utility model discloses the description through the preferred embodiment, and the person skilled in the art knows that various changes or equivalent replacement can be made to these features and embodiments without departing from the spirit and scope of the utility model. The utility model is not limited by the specific embodiments disclosed here, and other embodiments falling within the claims of the present application all belong to the scope of protection of the utility model.

Claims

1. A horizontal board loudspeaker, characterized by: The sound frame (1) and the sound film (2) are arranged on the top of the sound frame (1), the sound frame (1) is provided with a sound basin (11), the sound basin (11) is provided with a magnetic assembly (12) and a vibration assembly (13) for driving the sound film (2) to produce sound; the sound frame (1) and the edge of the sound film (2) are connected with a stepped portion (14), and the stepped portion (14) is filled with adhesive (3) in the stepped gap between the sound frame (1) and the sound film (2).

2. The horizontal board loudspeaker according to claim 1, wherein: The height of the stepped portion (14) outside the edge connection between the sound frame (1) and the sound film (2) is higher than that of the stepped portion (14) inside.

3. The horizontal board loudspeaker according to claim 1, wherein: The adhesive (3) is one of UV glue, acrylic glue, water-based vibration film glue, polyurethane glue, butyl glue and cyanoacrylate glue.

4. The horizontal board 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.

5. The horizontal board loudspeaker according to claim 4, 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).

6. The horizontal board loudspeaker according to claim 5, wherein: The plurality of voice coils (131) are connected to each other through a circuit, and the voice coil (131) is connected to an external circuit through FPC to ensure the lossless transmission of audio signals.

Images