A new moving-coil loudspeaker structure

Abstract

The utility model discloses a new type moving coil loudspeaker structure, it includes support, U cup, diaphragm, magnet, huasi, voice coil, FPC circuit board, and this new type moving coil loudspeaker structure has the through hole from below to above in turn through U cup middle part, magnet middle part and huasi middle part, FPC circuit board includes the fixed part of epitaxial department, the fixed part of FPC circuit board is glued fixed on huasi upper surface and is located the edge side of through -hole upper end opening, and the epitaxial department of FPC circuit board is down through the through -hole, the fixed part of FPC circuit board is provided with first positive electrode welding spot, first negative electrode welding spot, and the positive electrode lead of voice coil is welded with first positive electrode welding spot and realizes electric connection, and the negative electrode lead of voice coil is welded with first negative electrode welding spot and realizes electric connection. Through above -mentioned structural design, the utility model discloses a new type moving coil loudspeaker structure has the advantage that structure design is novel, and assembly is simple and convenient, and diaphragm vibration balance is good, and can effectively reduce distortion.

Description

Technical Field

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

[0002] Chinese utility model patent with patent number ZL202122715363.1 and patent title: "FPC Spring-Type Speaker for Increasing Power, Reducing Distortion, and Improving Production Efficiency" essentially discloses a dynamic loudspeaker. Specifically, this FPC spring-type loudspeaker for increasing power, reducing distortion, and improving production efficiency discloses the following technical solution: An FPC spring-type loudspeaker for increasing power, reducing distortion, and improving production efficiency includes a bracket, a diaphragm, an FPC circuit board, a voice coil, a washer, a magnet, and a U-cup. The diaphragm covers the front of the bracket. The U-cup is mounted on a bracket and the magnet is placed inside the U-cup. The washer is stacked on the magnet. The voice coil is mounted on the diaphragm and extends between the magnet and the U-cup. The FPC circuit board includes an outer ring, an inner ring, and a plurality of connecting arms. The two ends of the connecting arms are respectively connected to the outer ring and the inner ring. The front side of the outer ring is restricted to the outer periphery of the rear side of the diaphragm. The front side of the inner ring is restricted to the middle of the rear side of the diaphragm. The rear side of the inner ring is restricted to the front side of the voice coil. The U-cup, the magnet, and the washer have sequentially aligned perforations in their middle sections.

[0003] For the FPC spring-loaded loudspeaker that aims to increase power, reduce distortion, and improve production efficiency, the following defects still exist: Specifically, the outer ring of the FPC circuit board is fixed with glue to the outer periphery of the rear side of the diaphragm, and the inner ring of the FPC circuit board is fixed with glue to the middle of the rear side of the diaphragm. During the process of applying glue to fix the outer and inner rings of the FPC circuit board, the unevenness of the glue application and the hardness of the glue after it is fixed will cause the diaphragm to vibrate unbalancedly, thereby increasing harmonic distortion. Utility Model Content

[0004] The purpose of this invention is to provide a novel dynamic loudspeaker structure that addresses the shortcomings of existing technologies. This novel dynamic loudspeaker structure features a novel design, simple and convenient assembly, good diaphragm vibration balance, and can effectively reduce distortion.

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

[0006] A novel dynamic loudspeaker structure includes a bracket, a U-cup, a diaphragm, a magnet, a washer, a voice coil, and an FPC circuit board. The U-cup is installed in the middle of the bracket. The magnet and the washer are respectively fixedly installed in the inner cavity of the U-cup, with the washer located on the upper surface of the magnet. The voice coil is installed on the diaphragm and extends into the gap between the magnet and the U-cup. The edge of the diaphragm is glued and fixed to the bracket.

[0007] The new dynamic loudspeaker structure has a through hole that runs from bottom to top through the middle of the U-cup, the middle of the magnet, and the middle of the washer;

[0008] The FPC circuit board includes an extended portion and an arc-shaped fixing portion. The fixing portion of the FPC circuit board is glued to the upper surface of the washer and located on the edge side of the upper opening of the through hole. The extended portion of the FPC circuit board passes through the through hole downwards.

[0009] The FPC circuit board has a first positive solder joint and a first negative solder joint in its fixing part. The positive lead of the voice coil is soldered to the first positive solder joint to achieve electrical connection, and the negative lead of the voice coil is soldered to the first negative solder joint to achieve electrical connection.

[0010] The extension of the FPC circuit board is elongated, and a second positive solder joint and a second negative solder joint are provided at the end of the extension of the FPC circuit board away from the fixing part. The first positive solder joint and the second positive solder joint are electrically connected through the internal circuit of the FPC circuit board, and the first negative solder joint and the second negative solder joint are electrically connected through the internal circuit of the FPC circuit board.

[0011] The positive and negative leads of the voice coil are arranged in a centrally symmetrical and suspended manner.

[0012] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0013] 1. The FPC circuit board is fixed to the upper surface of the washer by its fixing part, and the fixing part is soldered to the corresponding positive lead and negative lead of the voice coil by its first positive solder point and second positive solder point respectively. This voice coil electrical connection structure does not have the problem of FPC circuit board and diaphragm adhesive connection, which can effectively avoid the problem of diaphragm vibration imbalance caused by uneven glue application and the hardness of glue after curing in the prior art.

[0014] 2. This utility model does not involve multiple adhesive connections on the FCP circuit board. Compared with the prior art, the installation of the FCP circuit board of this utility model is more convenient and faster.

[0015] 3. Therefore, the novel moving-coil loudspeaker structure of this utility model has the advantages of novel structural design, simple and convenient assembly, good diaphragm vibration balance, and can effectively reduce distortion. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the FPC circuit board of this utility model.

[0019] exist Figure 1 and Figure 2 This includes:

[0020] 1-Bracket; 2-U-cup; 3-Diaphragm; 4-Magnet; 5-Washer; 6-Voice Coil; 61-Positive Lead; 62-Negative Lead; 7-FPC Circuit Board; 71-Extension; 72-Fixing Part; 731-First Positive Solder Joint; 732-First Negative Solder Joint; 741-Second Positive Solder Joint; 742-Second Negative Solder Joint; 8-Through Hole. Detailed Implementation

[0021] The present invention will now be described in conjunction with specific embodiments.

[0022] Example 1, as Figure 1 As shown, a novel dynamic loudspeaker structure includes a bracket 1, a U-cup 2, a diaphragm 3, a magnet 4, a washer 5, a voice coil 6, and an FPC circuit board 7. The U-cup 2 is installed in the middle of the bracket 1. The magnet 4 and the washer 5 are respectively fixedly installed in the inner cavity of the U-cup 2, with the washer 5 located on the upper surface of the magnet 4. The voice coil 6 is installed on the diaphragm 3 and extends into the gap between the magnet 4 and the U-cup 2. The edge of the diaphragm 3 is glued and fixed to the bracket 1.

[0023] Among them, such as Figure 1 As shown, the novel dynamic loudspeaker structure has a through hole 8 that runs from bottom to top through the middle of the U-cup 2, the middle of the magnet 4, and the middle of the washer 5.

[0024] Furthermore, such as Figure 1 and Figure 2 As shown, the FPC circuit board 7 includes an extension portion and an arc-shaped fixing portion 72. The fixing portion 72 of the FPC circuit board 7 is glued to the upper surface of the washer 5 and located on the edge side of the upper opening of the through hole 8. The extension portion of the FPC circuit board 7 passes through the through hole 8 downwards.

[0025] Furthermore, such as Figure 1 and Figure 2 As shown, the fixing part 72 of the FPC circuit board 7 is provided with a first positive solder joint 731 and a first negative solder joint 732. The positive lead 61 of the voice coil 6 is soldered to the first positive solder joint 731 and electrically connected, and the negative lead 62 of the voice coil 6 is soldered to the first negative solder joint 732 and electrically connected.

[0026] It should be noted that, as Figure 1 and Figure 2As shown, the extension 71 of the FPC circuit board 7 is elongated. The extension 71 of the FPC circuit board 7 has a second positive solder joint 741 and a second negative solder joint 742 at the end away from the fixing part 72. The first positive solder joint 731 and the second positive solder joint 741 are electrically connected through the internal circuit of the FPC circuit board 7, and the first negative solder joint 732 and the second negative solder joint 742 are electrically connected through the internal circuit of the FPC circuit board 7.

[0027] It should be explained that, for the FPC circuit board 7 in this embodiment, its extension 71 passes through the through hole 8 and extends to the lower side of the bracket 1. The second positive solder joint 741 and the second negative solder joint 742 of the extension 71 can be directly soldered to the external circuit structure to achieve electrical connection.

[0028] It should be emphasized that in this embodiment, the FPC circuit board 7 is fixed to the upper surface of the washer 5 by its fixing part 72, and the fixing part 72 is soldered to the corresponding positive lead 61 and negative lead 62 of the voice coil 6 by its first positive solder joint 731 and second positive solder joint 741, respectively. The electrical connection structure of the voice coil 6 does not have the problem of adhesive bonding between the FPC circuit board and the diaphragm 3, which can effectively avoid the problem of unbalanced vibration of the diaphragm 3 caused by uneven glue application and the hardness of the glue after curing in the prior art.

[0029] It should be further emphasized that the novel dynamic speaker structure of this embodiment does not involve multiple adhesive connections of the FCP circuit board. Compared with the prior art, the installation of the FCP circuit board in this embodiment is more convenient and faster.

[0030] In summary, the novel moving-coil loudspeaker structure of this embodiment has the advantages of novel structural design, simple and convenient assembly, good vibration balance of the diaphragm 3, and can effectively reduce distortion.

[0031] Example 3, as Figure 1 As shown, the difference between this embodiment 3 and embodiment 1 is that the positive lead 61 and negative lead 62 of the voice coil 6 are arranged in a centrally symmetrical and suspended manner.

[0032] 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 dynamic loudspeaker structure, comprising a bracket (1), a U-cup (2), a diaphragm (3), a magnet (4), a washer (5), a voice coil (6), and an FPC circuit board (7). The U-cup (2) is installed in the middle of the bracket (1). The magnet (4) and the washer (5) are respectively fixedly installed in the inner cavity of the U-cup (2) and the washer (5) is located on the upper surface of the magnet (4). The voice coil (6) is installed on the diaphragm (3) and extends into the gap between the magnet (4) and the U-cup (2). The edge of the diaphragm (3) is glued to the bracket (1). The new dynamic loudspeaker structure has a through hole (8) that runs from bottom to top through the middle of the U-cup (2), the middle of the magnet (4), and the middle of the washer (5). Its features are: The FPC circuit board (7) includes an extension portion and an arc-shaped fixing portion (72). The fixing portion (72) of the FPC circuit board (7) is glued to the upper surface of the washer (5) and located on the edge side of the upper opening of the through hole (8). The extension portion of the FPC circuit board (7) passes through the through hole (8) downwards. The fixing part (72) of the FPC circuit board (7) is provided with a first positive solder joint (731) and a first negative solder joint (732). The positive lead (61) of the voice coil (6) is soldered to the first positive solder joint (731) and electrically connected. The negative lead (62) of the voice coil (6) is soldered to the first negative solder joint (732) and electrically connected.

2. The novel dynamic loudspeaker structure according to claim 1, characterized in that: The extension (71) of the FPC circuit board (7) is elongated. The extension (71) of the FPC circuit board (7) is provided with a second positive solder joint (741) and a second negative solder joint (742) at the end away from the fixing part (72). The first positive solder joint (731) and the second positive solder joint (741) are electrically connected through the internal circuit of the FPC circuit board (7). The first negative solder joint (732) and the second negative solder joint (742) are electrically connected through the internal circuit of the FPC circuit board (7).

3. The novel dynamic loudspeaker structure according to claim 1, characterized in that: The positive lead (61) and negative lead (62) of the voice coil (6) are arranged in a centrally symmetrical and suspended manner.

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