A dual-diaphragm flat panel loudspeaker

Abstract

This utility model discloses a dual-diaphragm flat panel loudspeaker, including a mounting base on which a magnet array is fixedly connected. Diaphragm bodies are provided on both sides of the mounting base, and wire arrays are fixedly connected to the diaphragm bodies at positions corresponding to the magnet arrays. A housing is provided on one side of the diaphragm body, and a pressure ring assembly is installed inside the housing. A tuning mesh is provided on one side of the pressure ring assembly. This utility model uses two independent diaphragms arranged parallel to each other, one diaphragm focusing on the mid-low frequency range and the other focusing on the high frequency range. Synchronous vibration is driven by a magnetic field to achieve frequency band complementarity and sound pressure superposition, thereby improving sound fidelity and achieving high-fidelity sound quality. This utility model uses the pressure ring body to confine the tuning mesh within the housing, and the protrusions are engaged in the ring groove by the elastic force provided by the spring, thus locking the position of the pressure ring body. Compared with existing adhesive fixing, this installation method has the advantages of good stability and easy disassembly and assembly.

Description

Technical Field

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

[0002] As audio devices trend towards thinner and flatter designs, planar magnetic speakers, with their ultra-thin structure and uniform sound field distribution, are widely used in smart homes, car audio systems, and consumer electronics. However, existing planar magnetic speakers still have the following drawbacks: 1. Existing planar magnetic speakers generally use a single-diaphragm design. This single-diaphragm structure limits the effective radiation of low-frequency sound waves, resulting in insufficient low-frequency response. Simultaneously, their energy conversion efficiency is low, making it difficult to meet high-fidelity sound quality requirements. Furthermore, they are prone to non-linear distortion at high volume outputs, affecting sound reproduction accuracy. 2. Existing planar magnetic speakers typically use adhesive bonding for their tuning mesh. This method is prone to mesh detachment due to glue aging. Adhesive bonding is also difficult to install, requiring precise control of the glue application. Excessive glue can overflow, clogging the mesh. Additionally, adhesive bonding is an irreversible connection, making it difficult to disassemble the tuning mesh without damage when cleaning or replacing it, increasing product maintenance costs and complexity. Utility Model Content

[0003] The purpose of this invention is to provide a dual-diaphragm flat panel loudspeaker to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a dual-diaphragm flat panel loudspeaker, including a mounting base, on which a magnet array is fixedly connected, and on both sides of the mounting base are diaphragm bodies, on which a wire array is fixedly connected at the position corresponding to the magnet array, and on one side of the diaphragm body is a housing, in which a pressure ring assembly is installed, and on one side of the pressure ring assembly is a tuning mesh, which is fitted inside the housing.

[0005] Preferably, one of the housings has multiple mounting holes evenly distributed on it, and screws are installed in the mounting holes. Through holes are opened on the mounting base and the diaphragm body at the positions corresponding to the mounting holes. Threaded holes are opened on the other housing at the positions corresponding to the mounting holes, and the screws are threaded into the threaded holes after passing through the through holes.

[0006] Preferably, the mounting base has a first through groove, the first through groove has a mounting groove, and the magnet array is fixedly connected in the mounting groove.

[0007] Preferably, the housing has a receiving groove, and the pressure ring assembly and the tuning mesh are both disposed in the receiving groove, and multiple sound outlet holes are evenly distributed in the receiving groove.

[0008] Preferably, the pressure ring assembly includes a pressure ring body, a second through groove, a bent piece, a spring piece, and a protrusion. The pressure ring body is sleeved in the receiving groove, and multiple spring pieces are fixedly connected to the pressure ring body. The spring pieces are provided with protrusions, and an annular groove is opened in the receiving groove, with the protrusions engaging in the annular groove.

[0009] Preferably, a second through groove is provided on the pressure ring body at the position corresponding to the spring piece, and a bent piece is fixedly connected in the second through groove, with one end of the bent piece disposed on the spring piece.

[0010] The present invention provides a dual-diaphragm flat panel speaker, which has the following advantages: The present invention uses two independent diaphragms arranged in parallel front to back. One diaphragm focuses on the mid-low frequency range, and the other diaphragm focuses on the high frequency range. They are driven to vibrate synchronously by a magnetic field to achieve frequency band complementarity and sound pressure superposition, thereby improving the sound reproduction and achieving high-fidelity sound quality. The present invention uses the pressure ring body to restrict the tuning mesh inside the housing. The protrusion is engaged in the ring groove by the elastic force provided by the spring, thereby locking the position of the pressure ring body. Compared with the existing adhesive fixing, this installation method has the advantages of good stability and easy disassembly and assembly. 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 this utility model;

[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 pressure ring assembly of this utility model.

[0016] In the diagram: 1. Mounting base; 11. First through slot; 12. Mounting slot; 13. Magnet array; 2. Diaphragm body; 21. Wire array; 3. Pressure ring assembly; 31. Pressure ring body; 32. Second through slot; 33. Bending plate; 34. Spring; 35. Protrusion; 4. Tuning mesh; 5. Housing; 51. Receiving slot; 52. Ring groove; 53. Sound outlet; 6. Screw; 61. Mounting hole; 62. Through hole; 63. Threaded hole. 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 4This utility model provides an embodiment of a dual-diaphragm flat panel loudspeaker, including a mounting base 1, on which a magnet array 13 is fixedly connected. Diaphragm bodies 2 are provided on both sides of the mounting base 1. A wire array 21 is fixedly connected to the diaphragm body 2 at positions corresponding to the magnet array 13. A housing 5 is provided on one side of the diaphragm body 2, and a pressure ring assembly 3 is installed inside the housing 5. A tuning mesh 4 is provided on one side of the pressure ring assembly 3 and is fitted inside the housing 5. The mounting base 1 is used to mount the magnet array 13, which provides a magnetic field environment. When an audio current is passed through the wire array 21 in the magnetic field environment, it drives the diaphragm body 2 to vibrate. The speaker is powered by two housings 5, which together form the outer shell. A retaining ring assembly 3 confines the tuning mesh 4 within the housings 5, and the tuning mesh 4 serves as a dustproof barrier. One housing 5 has multiple mounting holes 61 evenly distributed on it, with screws 6 installed within each hole. Through holes 62 are provided on the mounting base 1 and the diaphragm body 2 at positions corresponding to the mounting holes 61. The other housing 5 has threaded holes 63 at positions corresponding to the mounting holes 61, and the screws 6 pass through the through holes 62 and are threaded into the threaded holes 63. The mounting holes 61, through holes 62, and threaded holes 63 are used to install the screws 6, allowing the housings 5, diaphragm body 2, and mounting base 1 to be fixed together. The base 1 has a first through groove 11, and a mounting groove 12 is formed on the first through groove 11. The magnet array 13 is fixedly connected in the mounting groove 12. The first through groove 11 is used for airflow, and the mounting groove 12 is used to install the magnet array 13. The housing 5 has a receiving groove 51, and the pressure ring assembly 3 and the tuning mesh 4 are both set in the receiving groove 51. Multiple sound outlet holes 53 are evenly distributed in the receiving groove 51. The receiving groove 51 is used to receive the pressure ring assembly 3 and the tuning mesh 4, and the sound outlet holes 53 are used for airflow. The pressure ring assembly 3 includes a pressure ring body 31, a second through groove 32, a bent piece 33, a spring piece 34, and a protrusion 35. The pressure ring body 31 is sleeved in the receiving groove 51. Inside, a plurality of spring pieces 34 are fixedly connected to the pressure ring body 31. The spring pieces 34 are provided with protrusions 35. An annular groove 52 is opened in the receiving groove 51, and the protrusions 35 are engaged in the annular groove 52. The pressure ring body 31 is used to restrict the tuning mesh 4 in the receiving groove 51. The spring pieces 34 are used to provide elastic force for the protrusions 35, so that the protrusions 35 are engaged in the annular groove 52. A second through groove 32 is opened on the pressure ring body 31 at the position corresponding to the spring pieces 34. A bent piece 33 is fixedly connected in the second through groove 32, and one end of the bent piece 33 is set on the spring piece 34. The second through groove 32 is used to install the bent piece 33, and the bent piece 33 is used to provide additional elastic force for the spring pieces 34.

[0019] Working principle: When using this utility model, firstly, the tuning mesh 4 is installed in the housing 5 using the pressure ring assembly 3. The specific operation method is as follows: the tuning mesh 4 is placed in the receiving groove 51 of the housing 5 to block the sound outlet 53. Then, the pressure ring body 31 is pressed into the receiving groove 51, so that the protrusion 35 is locked into the ring groove 52 under the elastic force of the spring piece 34. In this way, the position of the tuning mesh 4 is restricted by the pressure ring body 31. The pressure ring assembly 3 uses the bending piece 33 in the second through groove 32 to provide additional elastic force to the spring piece 34 to ensure that the protrusion 35 is locked. The connection is secure; wherein, the mounting groove 12 is used to install the magnet array 13, the first through groove 11 is used for gas flow, and in the magnetic field environment provided by the magnet array 13, the two diaphragm bodies 2 vibrate synchronously after the audio current is passed through the wire array 21. One diaphragm body 2 focuses on the mid-low frequency range, and the other diaphragm body 2 focuses on the high frequency range, so as to achieve frequency band complementarity and sound pressure superposition. The mounting hole 61, through hole 62 and threaded hole 63 are used to install screws 6. Through the screws 6, the housing 5, diaphragm body 2 and mounting base 1 can be fixed together.

[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 dual-diaphragm flat panel loudspeaker, comprising a mounting base (1), characterized in that: A magnet array (13) is fixedly connected to the mounting base (1). A diaphragm body (2) is provided on both sides of the mounting base (1). A wire array (21) is fixedly connected to the diaphragm body (2) at the position corresponding to the magnet array (13). A housing (5) is provided on one side of the diaphragm body (2). A pressure ring assembly (3) is installed inside the housing (5). A tuning mesh (4) is provided on one side of the pressure ring assembly (3), and the tuning mesh (4) is fitted inside the housing (5).

2. The dual-diaphragm flat panel loudspeaker according to claim 1, characterized in that: One of the housings (5) has multiple mounting holes (61) evenly distributed on it. Screws (6) are installed in the mounting holes (61). Through holes (62) are opened on the mounting base (1) and the diaphragm body (2) at the positions corresponding to the mounting holes (61). Threaded holes (63) are opened on the other housing (5) at the positions corresponding to the mounting holes (61). The screws (6) pass through the through holes (62) and are threaded into the threaded holes (63).

3. The dual-diaphragm flat panel loudspeaker according to claim 1, characterized in that: The mounting base (1) has a first through groove (11), the first through groove (11) has a mounting groove (12), and the magnet array (13) is fixedly connected in the mounting groove (12).

4. A dual-diaphragm flat panel loudspeaker according to claim 1, characterized in that: The housing (5) has a receiving groove (51), and the pressure ring assembly (3) and the tuning mesh (4) are both located in the receiving groove (51). Multiple sound outlet holes (53) are evenly distributed in the receiving groove (51).

5. A dual-diaphragm flat panel loudspeaker according to claim 4, characterized in that: The pressure ring assembly (3) includes a pressure ring body (31), a second through groove (32), a bent piece (33), a spring piece (34), and a protrusion (35). The pressure ring body (31) is fitted into the receiving groove (51). Multiple spring pieces (34) are fixedly connected to the pressure ring body (31). A protrusion (35) is provided on the spring piece (34). An annular groove (52) is opened in the receiving groove (51), and the protrusion (35) is engaged in the annular groove (52).

6. A dual-diaphragm flat panel loudspeaker according to claim 5, characterized in that: A second through groove (32) is provided on the pressure ring body (31) at the position corresponding to the spring piece (34). A bent piece (33) is fixedly connected in the second through groove (32), and one end of the bent piece (33) is set on the spring piece (34).

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