Flexible printed circuit (FPC) loudspeaker

Abstract

The utility model discloses an FPC soft board horn comprising an iron basin, the iron basin is provided with a groove, the groove is internally provided with a tuning net, the top end of the tuning net is provided with an FPC assembly, the FPC assembly comprises a base material ring, the base material ring is arranged in the iron basin, the base material ring is fixedly connected with an FPC board, the base material ring is uniformly provided with a plurality of connecting sheets, the connecting sheets are arranged at the top end of the tuning net, and the FPC board is fixedly connected with the FPC board. A first bending piece is fixedly connected to the connecting piece, a second bending piece is fixedly connected to the first bending piece, a check ring is fixedly connected into the iron basin, and the second bending piece is arranged at the bottom end of the check ring; according to the utility model, the FPC board is used for replacing a hard PCB, the reliability of welding can be effectively improved, the height of the loudspeaker is reduced, the design requirement of miniaturization of the loudspeaker can be met, the tuning net is limited through the FPC assembly, the problems that the tuning net is easy to age and fall off, is easy to block and is difficult to disassemble when the tuning net is fixed by gluing are solved, the assembly difficulty is reduced, and the production efficiency is improved. And the assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to an FPC flexible board loudspeaker. Background Technology

[0002] Existing electronic devices often require speakers to output audio. The speaker needs to be electrically connected to the device's motherboard to convert analog signals into sound waves under the control of the motherboard's control module. Therefore, ensuring the reliability of the connection between the speaker and the motherboard is crucial for the speaker's playback quality. Existing speakers have the following drawbacks: 1. Most existing speakers use rigid PCBs for soldering. Rigid PCBs are prone to issues like cold solder joints and poor soldering reliability. Furthermore, rigid PCBs require sufficient rigid support space, making them difficult to adapt to miniaturized speaker designs. 2. Speaker tuning meshes are mostly fixed with adhesive. Over long-term use, the adhesive is susceptible to aging due to temperature and humidity changes, causing the tuning mesh to detach and affecting normal speaker operation. Improper adhesive application can also overflow and contaminate the tuning mesh, clogging the mesh openings, damaging the acoustic structure, and degrading sound quality. Additionally, adhesive fixation makes disassembly difficult, hindering cleaning and replacement of the tuning mesh. Utility Model Content

[0003] The purpose of this invention is to provide an FPC flexible board speaker to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an FPC flexible board speaker, including an iron cone, a groove is formed on the iron cone, a tuning mesh is arranged in the groove, an FPC component is arranged at the top of the tuning mesh, the FPC component includes a substrate ring, and the substrate ring is arranged in the iron cone, an FPC board is fixedly connected to the substrate ring, a plurality of connecting pieces are evenly distributed on the substrate ring, and the connecting pieces are arranged at the top of the tuning mesh, a first bent piece is fixedly connected to the connecting piece, a second bent piece is fixedly connected to the first bent piece, a retaining ring is fixedly connected in the iron cone, and the second bent piece is arranged at the bottom end of the retaining ring.

[0005] Preferably, the groove has multiple through slots evenly distributed within it.

[0006] Preferably, a limiting groove is provided on the iron basin, and the FPC plate is disposed in the limiting groove.

[0007] Preferably, the retaining ring has a notch at the position corresponding to the limiting groove.

[0008] Preferably, the iron basin has a receiving groove, a magnet is fixedly connected in the receiving groove, a washer is fixedly connected to the upper surface of the magnet, a voice coil is sleeved on the washer, a diaphragm is fixedly connected to the voice coil, and the diaphragm is fixedly connected in the iron basin and is set at the top of the retaining ring.

[0009] Preferably, one end of the FPC board is provided with a first welding part, and the first welding part is electrically connected to the voice coil, and the other end of the FPC board is provided with a second welding part.

[0010] The present invention provides an FPC flexible board speaker, which has the following advantages: The present invention uses an FPC board instead of a rigid PCB board, which can effectively improve the reliability of welding, reduce the height of the speaker, and is conducive to adapting to the design requirements of speaker miniaturization. By using FPC components to limit the position of the tuning mesh, the problems of easy aging and falling off, easy blockage, and difficult disassembly of the tuning mesh caused by adhesive fixing are solved, reducing the assembly difficulty and improving the assembly efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0013] Figure 2 This is an exploded view of the overall three-dimensional structure of this utility model;

[0014] Figure 3 for Figure 2 Enlarged view of the structure of region A in the middle;

[0015] Figure 4 This is a three-dimensional structural diagram of the FPC component of this utility model.

[0016] In the diagram: 1. Iron basin; 11. Groove; 12. Through groove; 13. Retaining ring; 14. Notch; 15. Limiting groove; 16. Receiving groove; 2. Tuning mesh; 3. FPC component; 31. Substrate ring; 32. Connecting piece; 33. First bent piece; 34. Second bent piece; 35. FPC board; 36. First welding part; 37. Second welding part; 4. Magnet; 5. Washer; 6. Voice coil; 7. Diaphragm. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Please see the appendix Figure 1 - Appendix Figure 4 This utility model provides an embodiment of an FPC flexible board speaker, including an iron cone 1 with a groove 11. A tuning mesh 2 is disposed within the groove 11, and an FPC assembly 3 is disposed at the top of the tuning mesh 2. The FPC assembly 3 includes a substrate ring 31 disposed within the iron cone 1. An FPC board 35 is fixedly connected to the substrate ring 31. Multiple connecting pieces 32 are evenly distributed on the substrate ring 31, and the connecting pieces 32 are disposed at the top of the tuning mesh 2. A first bent piece 33 is fixedly connected to the connecting piece 32. The FPC assembly 3 has a second bent piece 34 fixedly connected to the top, and a retaining ring 13 fixedly connected inside the iron basin 1. The second bent piece 34 is located at the bottom of the retaining ring 13. The iron basin 1 accommodates the tuning mesh 2 through the groove 11. The tuning mesh 2 is used for dust prevention. The FPC assembly 3 limits the tuning mesh 2 through the connecting piece 32 and limits the second bent piece 34 through the retaining ring 13. The first bent piece 33 provides a reset spring force for the connecting piece 32. The FPC board 35 is used for circuit connection. Multiple through slots 12 are evenly distributed in the groove 11. The through slots 12 are tuning holes. The iron basin 1 has an opening. A limiting groove 15 is provided, and an FPC board 35 is disposed within the limiting groove 15. The limiting groove 15 is used to accommodate the FPC board 35. A notch 14 is provided on the retaining ring 13 at the position corresponding to the limiting groove 15. A receiving groove 16 is provided inside the iron basin 1, and a magnet 4 is fixedly connected to the receiving groove 16. A washer 5 is fixedly connected to the upper surface of the magnet 4. A voice coil 6 is sleeved on the washer 5. A diaphragm 7 is fixedly connected to the voice coil 6 and is fixedly connected to the voice coil 6. The diaphragm 7 is fixedly connected to the iron basin 1 and is disposed at the top of the retaining ring 13. The receiving groove 16 is used to accommodate the magnet 4. The magnet 4 is used to accommodate the... To provide a constant magnetic field, washer 5 is used for magnetic conduction. When audio current passes through voice coil 6, voice coil 6 reciprocates under the action of Ampere force in the magnetic field, thereby driving diaphragm 7. When diaphragm 7 moves, it pushes air to generate sound waves. One end of FPC board 35 is provided with a first welding part 36, and the first welding part 36 establishes an electrical connection with voice coil 6. The other end of FPC board 35 is provided with a second welding part 37. FPC board 35 establishes an electrical connection with voice coil 6 through the first welding part 36, and establishes an electrical connection with external circuit through the second welding part 37.

[0019] Working principle: When using this utility model, the washer 5 is installed on the magnet 4, the magnet 4 is installed into the receiving groove 16 of the iron diaphragm 1, the voice coil 6 is electrically connected to the first welding part 36, the voice coil 6 is installed on the diaphragm 7, the tuning mesh 2 is installed in the groove 11, the substrate ring 31 is installed into the iron diaphragm 1, the FPC board 35 is installed into the limiting groove 15, the voice coil 6 is sleeved on the washer 5, the diaphragm 7 is installed in the iron diaphragm 1, the retaining ring 13 is used to limit the second bent piece 34, and the elastic force provided by the first bent piece 33 makes the connecting piece 32 abut against the tuning mesh 2; wherein, the through groove 12 is the tuning hole, the notch 14 is used to avoid the FPC board 35, the second welding part 37 is used to establish an electrical connection with the external circuit, the substrate ring 31, the connecting piece 32, the first bent piece 33 and the second bent piece 34 are an integral structure, belonging to the substrate part of the FPC board 35.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A FPC soft board horn comprising an iron basin (1), characterized in that: The iron basin (1) has a groove (11) and a tuning mesh (2) is provided in the groove (11). An FPC component (3) is provided at the top of the tuning mesh (2). The FPC component (3) includes a substrate ring (31) and the substrate ring (31) is provided in the iron basin (1). An FPC board (35) is fixedly connected to the substrate ring (31). Multiple connecting pieces (32) are evenly distributed on the substrate ring (31) and the connecting pieces (32) are provided at the top of the tuning mesh (2). A first bent piece (33) is fixedly connected to the connecting piece (32) and a second bent piece (34) is fixedly connected to the first bent piece (33). A retaining ring (13) is fixedly connected in the iron basin (1) and the second bent piece (34) is provided at the bottom of the retaining ring (13).

2. The FPC soft board horn according to claim 1, characterized in that: The groove (11) is provided with a plurality of through slots (12).

3. The FPC soft board horn according to claim 1, characterized in that: A limiting groove (15) is provided on the iron basin (1), and the FPC plate (35) is disposed in the limiting groove (15).

4. The FPC soft board horn according to claim 1, characterized in that: A notch (14) is provided on the retaining ring (13) at the position corresponding to the limiting groove (15).

5. The FPC soft speaker according to claim 3, characterized in that: The iron basin (1) has a receiving groove (16) inside, a magnet (4) is fixedly connected inside the receiving groove (16), a washer (5) is fixedly connected to the upper surface of the magnet (4), a voice coil (6) is sleeved on the washer (5), a diaphragm (7) is fixedly connected to the voice coil (6), and the diaphragm (7) is fixedly connected inside the iron basin (1) and is set at the top of the retaining ring (13).

6. The FPC soft speaker according to claim 3, characterized in that: One end of the FPC board (35) is provided with a first welding part (36), and the first welding part (36) is electrically connected to the voice coil (6). The other end of the FPC board (35) is provided with a second welding part (37).

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