Novel sound cavity type Bluetooth earphone loudspeaker

Abstract

The utility model discloses a novel sound cavity type Bluetooth earphone loudspeaker, which comprises a plastic support, a U iron, a voice coil, a diaphragm, a magnet and a washer, the U iron is arranged on the plastic support, a concave cavity is formed in the U iron, the magnet is fixedly arranged on the bottom surface of the concave cavity, and the washer is fixedly arranged on the front end surface of the magnet; the voice coil extends into the concave cavity and is sleeved on the peripheries of the magnet and the washer, the edge part of the diaphragm is fixedly arranged on the plastic bracket, and the front end part of the voice coil is connected with the diaphragm; an independent sound cavity with a forward opening is formed on the inner side of the edge part of the diaphragm on the plastic bracket, is separated from the U iron and is positioned on the outer side of the U iron; the side wall of the plastic support is provided with a sound hole which is opened outwards and is communicated with the independent sound cavity, and a tuning net is arranged at the opening position of the outer end of the sound hole. Through the above structural design, the loudspeaker has the advantage of novel structural design, and due to the independent sound cavity structure, tone tuning can be realized through the independent sound cavity.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset speaker technology, and in particular to a novel cavity-type Bluetooth headset speaker. Background Technology

[0002] The Chinese utility model patent with patent number ZL202223009132.X and patent name, entitled "An Earphone Speaker for Improving Magnetic Field Strength," specifically discloses the following technical solution: An earphone speaker for improving magnetic field strength includes a mounting frame and a U-shaped iron, a voice coil, a diaphragm, a magnet, and a washer disposed on the mounting frame. The U-shaped iron is located in the middle of the mounting frame and has a concave cavity with an open upper end. The magnet is disposed on the inner end face of the concave cavity. The washer is disposed on the upper end of the magnet. The lower end of the voice coil extends into the concave cavity, and the magnet and the washer are located within the inner periphery of the voice coil. The diaphragm is disposed on the upper end of the mounting frame, and the voice coil is located on the lower end of the diaphragm. The upper end of the mounting frame is provided with a mounting step, and the outer end of the diaphragm is disposed on the mounting step.

[0003] The above-mentioned headphone speaker with improved magnetic field strength still has the following defects: it does not have an independent acoustic cavity structure, that is, it does not have the function of tuning through an independent acoustic cavity. Utility Model Content

[0004] The purpose of this invention is to provide a novel acoustic cavity Bluetooth earphone speaker that addresses the shortcomings of existing technologies. This novel acoustic cavity Bluetooth earphone speaker has a novel structural design and an independent acoustic cavity structure, which enables tuning through an independent acoustic cavity.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0006] A novel acoustic cavity Bluetooth earphone speaker includes a plastic bracket, a U-shaped iron, a voice coil, a diaphragm, a magnet, and a washer. The U-shaped iron is mounted on the plastic bracket, and the plastic bracket surrounds the U-shaped iron. The U-shaped iron has a concave cavity with a forward opening inside. The magnet is fastened to the bottom surface of the concave cavity, and the washer is fastened to the front surface of the magnet. The magnet and the washer are spaced apart from the side wall of the concave cavity.

[0007] The voice coil extends into the cavity and is fitted around the magnet and washer;

[0008] The edge of the diaphragm is securely mounted to the plastic bracket and the diaphragm is located at the front end of the cavity. The front end of the voice coil is connected to the diaphragm.

[0009] The plastic support has an independent sound cavity with a forward opening formed on the inner side of the edge of the diaphragm. The independent sound cavity is spaced apart from the U-shaped iron and is located on the outer side of the U-shaped iron.

[0010] The side wall of the plastic bracket has an outward-facing sound hole that communicates with the independent sound cavity, and a tuning mesh is installed at the outer end of the sound hole.

[0011] The plastic bracket has two symmetrically arranged independent sound chambers.

[0012] The plastic bracket has a positioning groove at the outer end opening of the sound hole, and the tuning mesh is embedded in the positioning groove.

[0013] The plastic bracket and the U-shaped iron are injection molded into an integral structure.

[0014] The plastic bracket has a positioning step corresponding to the diaphragm, and the edge of the diaphragm is glued to the positioning step of the plastic bracket.

[0015] The plastic bracket is provided with a mounting positioning post that protrudes rearward.

[0016] Compared with existing technologies, this utility model has the following advantages: Specifically, the plastic bracket of this utility model has an independent sound cavity located between the voice coil and the edge of the diaphragm. The independent sound cavity is connected to the outside through a sound hole, and a tuning mesh is installed at the outer opening of the sound hole. Therefore, the novel sound cavity Bluetooth earphone speaker of this utility model has the advantage of novel structural design, and because it has an independent sound cavity structure, it can achieve tuning through the independent sound cavity. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is an exploded view of the present invention.

[0020] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0021] exist Figures 1 to 3 This includes:

[0022] 1-Plastic bracket; 11-Positioning groove; 12-Positioning step; 13-Mounting positioning post; 2-U-shaped iron; 21-Concave cavity; 3-Voice coil; 4-Diaphragm; 5-Magnet; 6-Washer; 7-Independent sound cavity; 8-Sound hole; 9-Tuning mesh. Detailed Implementation

[0023] The present invention will now be described in conjunction with specific embodiments.

[0024] Example 1, as Figures 1 to 3 As shown, a novel cavity-type Bluetooth earphone speaker includes a plastic bracket 1, a U-shaped iron 2, a voice coil 3, a diaphragm 4, a magnet 5, and a washer 6. The U-shaped iron 2 is mounted on the plastic bracket 1, and the plastic bracket 1 surrounds the U-shaped iron 2. The U-shaped iron 2 has a cavity 21 with a forward opening inside. The magnet 5 is fixedly installed on the bottom surface of the cavity 21, and the washer 6 is fixedly installed on the front surface of the magnet 5. The magnet 5 and the washer 6 are spaced apart from the side wall of the cavity 21.

[0025] Among them, such as Figure 3 As shown, the voice coil 3 extends into the cavity 21 and is fitted around the magnet 5 and the washer 6.

[0026] Furthermore, such as Figure 3 As shown, the edge of the diaphragm 4 is securely mounted to the plastic bracket 1 and the diaphragm 4 is located at the front end of the cavity 21. The front end of the voice coil 3 is connected to the diaphragm 4.

[0027] Furthermore, such as Figure 2 and Figure 3 As shown, the plastic support 1 has an independent sound cavity 7 with a forward opening formed on the inner side of the edge of the diaphragm 4. The independent sound cavity 7 is spaced apart from the U-shaped iron 2 and is located on the outer side of the U-shaped iron 2.

[0028] In addition, such as Figures 1 to 3 As shown, the side wall of the plastic bracket 1 has an outward-facing sound hole 8 that communicates with the independent sound cavity 7, and a tuning mesh 9 is installed at the outer end opening of the sound hole 8.

[0029] It should be noted that, as Figure 2 and Figure 3 As shown, the plastic bracket 1 has two symmetrically arranged independent sound cavities 7; of course, the number of independent sound cavities 7 does not constitute a limitation on this embodiment, that is, the plastic bracket 1 of this embodiment can also have other numbers of independent sound cavities 7, such as three, four, etc.

[0030] And also, such as Figure 1 and Figure 2 As shown, the plastic bracket 1 in this embodiment is a racetrack-shaped mechanism, and the shape of the U-shaped iron 2 is adapted to the shape of the plastic bracket 1. Of course, the above shape design does not constitute a limitation on this embodiment, that is, the plastic bracket 1 and U-shaped iron 2 in this embodiment can also adopt other shape designs.

[0031] It should be emphasized that the plastic bracket 1 in this embodiment has an independent sound cavity 7 located between the edge of the voice coil 3 and the diaphragm 4. The independent sound cavity 7 is connected to the outside through the sound hole 8, and the tuning mesh 9 is installed at the outer opening of the sound hole 8.

[0032] In summary, the novel acoustic cavity Bluetooth earphone speaker of this embodiment has the advantage of novel structural design through the above structural design, and because it has an independent acoustic cavity 7 structure, it can achieve tuning through the independent acoustic cavity 7.

[0033] Example 2, as Figure 2 and Figure 3 As shown, the difference between this embodiment 2 and embodiment 1 is that: the plastic bracket 1 has a positioning groove 11 at the outer end opening of the sound hole 8, and the tuning mesh 9 is embedded in the positioning groove 11.

[0034] During the installation of the tuning mesh 9, the positioning groove 11 of the plastic bracket 1 can quickly position the tuning mesh 9, thereby improving the convenience and accuracy of the assembly of the tuning mesh 9. The tuning mesh 9 can be installed on the plastic bracket 1 by adhesive bonding.

[0035] Example 3 differs from Example 1 in that the plastic bracket 1 and the U-shaped iron 2 are injection molded into a single structure.

[0036] Example 4, as Figure 2 and Figure 3 As shown, the difference between this embodiment four and embodiment one is that: the plastic bracket 1 is provided with a positioning step 12 corresponding to the diaphragm 4, and the edge of the diaphragm 4 is glued and fixed to the positioning step 12 of the plastic bracket 1.

[0037] Example 5, such as Figures 1 to 3 As shown, the difference between this fifth embodiment and the first embodiment is that the plastic bracket 1 is provided with a rearward protruding mounting positioning post 13; during the process of installing the new type of acoustic cavity Bluetooth earphone speaker of this fifth embodiment onto the earphone shell, the mounting positioning post 13 can quickly install and position the speaker.

[0038] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A novel acoustic cavity Bluetooth earphone speaker, comprising a plastic bracket (1), a U-shaped iron (2), a voice coil (3), a diaphragm (4), a magnet (5), and a washer (6), wherein the U-shaped iron (2) is mounted on the plastic bracket (1) and the plastic bracket (1) surrounds the periphery of the U-shaped iron (2), the interior of the U-shaped iron (2) is formed with a front-opening cavity (21), the magnet (5) is fastened to the bottom surface of the cavity (21), and the washer (6) is fastened to the front end surface of the magnet (5), and the magnet (5) and the washer (6) are spaced apart from the side wall of the cavity (21); The voice coil (3) extends into the cavity (21) and is fitted around the magnet (5) and the washer (6); The edge of the diaphragm (4) is fastened to the plastic bracket (1) and the diaphragm (4) is located at the front end of the cavity (21). The front end of the voice coil (3) is connected to the diaphragm (4). Its features are: The plastic support (1) has an independent sound cavity (7) with a forward opening formed on the inner side of the edge of the diaphragm (4). The independent sound cavity (7) is spaced apart from the U-shaped iron (2) and the independent sound cavity (7) is located on the outside of the U-shaped iron (2). The side wall of the plastic bracket (1) has an outward-facing opening with a sound hole (8) that communicates with the independent sound cavity (7). A tuning mesh (9) is installed at the outer end opening of the sound hole (8).

2. The novel acoustic cavity Bluetooth earphone speaker according to claim 1, characterized in that: The plastic bracket (1) has two symmetrically arranged independent sound chambers (7).

3. The novel acoustic cavity Bluetooth earphone speaker according to claim 1, characterized in that: The plastic bracket (1) has a positioning groove (11) at the outer end opening of the sound hole (8), and the tuning mesh (9) is embedded in the positioning groove (11).

4. The novel acoustic cavity Bluetooth earphone speaker according to claim 1, characterized in that: The plastic bracket (1) and the U-shaped iron (2) are injection molded into an integral structure.

5. The novel acoustic cavity Bluetooth earphone speaker according to claim 1, characterized in that: The plastic bracket (1) is provided with a positioning step (12) corresponding to the diaphragm (4), and the edge of the diaphragm (4) is glued to the positioning step (12) of the plastic bracket (1).

6. The novel acoustic cavity Bluetooth earphone speaker according to claim 1, characterized in that: The plastic bracket (1) is provided with a rearwardly protruding mounting positioning post (13).

Images