Plane diaphragm loudspeaker

Abstract

The utility model relates to the technical field of loudspeakers, and discloses a planar diaphragm loudspeaker, which comprises a cylindrical shell, an upper cover and a lower cover are clamped at two ends of the shell, an upper magnet is fixed at one end close to the upper cover, and a second support is fixed at one end close to the lower cover. According to the plane vibrating diaphragm loudspeaker, conversion from audio signals to sound waves is achieved through interaction of a magnetic field and current, meanwhile, high-quality output of sound is ensured through design optimization, the upper magnet and the lower magnet are fixed through the fixing rod, and therefore the plane vibrating diaphragm loudspeaker has the advantages of being simple in structure and convenient to use. The stability of the magnetic field is ensured, and the reliability of the loudspeaker is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a flat diaphragm loudspeaker. Background Art

[0002] The process background technology of planar diaphragm speakers mainly focuses on their unique vibration sound-generating principle and design optimization. This technology uses a flat diaphragm to drive the diaphragm to vibrate through electromagnetic force or electrostatic force, thereby generating sound waves. In order to achieve higher sound quality and efficiency, the planar diaphragm speaker must meet the requirements of thin and light diaphragm and high rigidity for the driver. Although traditional preparation methods such as silk screen printing, spraying or 3D printing are feasible, it is difficult to process ultra-thin diaphragms. Therefore, the development of new preparation processes, such as magnetron sputtering coating combined with laser etching, has become the key to solving the problem of ultra-thin diaphragm processing. The integrated application of these technologies has not only improved the performance of planar diaphragm speakers, but also promoted technological progress in the field of audio equipment. In the prior art, the planar diaphragm speaker uses its unique flat diaphragm design to drive the sound through electromagnetic force or electrostatic force. This technology focuses on the characteristics of thin and light diaphragm and high rigidity, combined with advanced preparation processes such as magnetron sputtering coating and laser etching to optimize performance. Planar diaphragm speakers have the advantages of clear sound quality and wide frequency response, and have broad application prospects in the field of audio equipment. Although the device has many beneficial effects, the following problems still exist: the planar diaphragm speaker is inconvenient to disassemble and assemble, and the audio signal and sound quality response speed are slow, which needs to be improved. For this reason, we proposed a planar diaphragm speaker. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a planar diaphragm speaker to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a planar diaphragm speaker, comprising a shell, the shell having a cylindrical appearance, an upper cover and a lower cover being clamped at both ends of the shell, an upper magnet is fixed to the end close to the upper cover, a bracket two is fixed to the end close to the lower cover, and a diaphragm, a conductor coil and a positioning plate are fixed between the upper magnet and the bracket two.

[0005] Preferably, the upper cover and the lower cover are circular in appearance, and are connected to two ends of the shell by snap-fitting, and a plurality of holes are provided on the surfaces of the upper cover and the lower cover.

[0006] Preferably, four brackets 2 are fixed around the upper surface of the lower cover, one end of the four brackets 2 is fixed with a lower magnet, one end of each bracket 2 is fixed with a bracket 1, and the diameter of the bracket 1 is smaller than that of the bracket 2.

[0007] Preferably, a positioning plate is connected to the upper surface of the lower magnet, and the lower magnet does not contact the positioning plate. The positioning plate is sleeved on the outside of the bracket one, and a conductor coil is provided on the upper surface of the positioning plate, and the conductor coil is in a spiral shape.

[0008] Preferably, the diaphragm is sleeved on the outer surface of the bracket 1 and is not in contact with the upper magnet and the conductor coil.

[0009] Preferably, an upper magnet is fixed to one end of the bracket one, and the upper magnet and the lower magnet have four fixing rods respectively connected to the bracket one.

[0010] Preferably, three annular magnets are provided inside the upper magnet and the lower magnet, and are all fixed by four fixing rods.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model adopts a cylindrical shell and a snap-on design of the upper and lower covers, making the overall structure compact and easy to install and integrate into various audio equipment. At the same time, by rationally arranging key components such as the upper magnet, the lower magnet, the diaphragm, the conductor coil and the positioning sheet, the high efficiency of the speaker is ensured during operation.

[0013] 2. The utility model further improves the response speed and sound quality of the audio signal by optimizing the shape of the conductor coil (such as the vortex line shape).

[0014] 3. The utility model adopts a combination design of bracket 1 and bracket 2, which makes the key components such as the diaphragm and the conductor coil more firmly fixed, while providing sufficient flexibility to adapt to audio signals of different frequencies. In addition, the upper and lower magnets are fixed by a fixing rod to ensure the stability of the magnetic field and further improve the reliability of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic cross-sectional view of the utility model;

[0017] Figure 3 It is a schematic diagram of a top view of the utility model;

[0018] Figure 4 It is an isometric schematic diagram of the utility model.

[0019] In the figure: 1. upper cover; 2. upper magnet; 3. bracket 1; 4. diaphragm; 5. conductor coil; 6. positioning plate; 7. bracket 2; 8. lower magnet; 9. lower cover; 10. shell; 11. fixing rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 A planar diaphragm speaker includes a shell 10, which has a cylindrical appearance. An upper cover 1 and a lower cover 9 are clamped at both ends of the shell 10. An upper magnet 2 is fixed to the end close to the upper cover 1, and a bracket 7 is fixed to the end close to the lower cover 9. A diaphragm 4, a conductor coil 5 and a positioning plate 6 are fixed between the upper magnet 2 and the bracket 7.

[0022] Furthermore, the upper cover 1 and the lower cover 9 are circular in appearance, and the upper cover 1 and the lower cover 9 are connected to the two ends of the shell 10 by snap-fitting, and a plurality of holes are provided on the surfaces of the upper cover 1 and the lower cover 9.

[0023] Furthermore, four brackets 2 7 are fixed around the upper surface of the lower cover 9 , one end of the four brackets 2 7 is fixed with a lower magnet 8 , one end of each bracket 2 7 is fixed with a bracket 1 3 , and the diameter of the bracket 1 3 is smaller than that of the bracket 2 7 .

[0024] Furthermore, the upper surface of the lower magnet 8 is connected with a positioning piece 6, and the lower magnet 8 does not contact the positioning piece 6. The positioning piece 6 is sleeved on the outside of the bracket 3, and the upper surface of the positioning piece 6 is provided with a conductor coil 5, and the conductor coil 5 is in a spiral shape.

[0025] Furthermore, the diaphragm 4 is sleeved on the outer surface of the bracket 3 and is not in contact with the upper magnet 2 and the conductor coil 5 .

[0026] Furthermore, an upper magnet 2 is fixed to one end of the bracket 3, and the upper magnet 2 and the lower magnet 8 have four fixing rods 11 respectively connected to the bracket 3.

[0027] Furthermore, three annular magnets are provided inside the upper magnet 2 and the lower magnet 8 , and are all fixed by four fixing rods 11 .

[0028] Working principle: The upper magnet 2 and the lower magnet 8 are fixed by the fixing rod 11 to form a stable magnetic field. This magnetic field provides driving force for the subsequent vibration process. The conductor coil 5 is placed between the upper magnet 2 and the lower magnet 8. When the audio signal passes through, the current is generated in the conductor coil 5, and then it is acted upon by force in the magnetic field. Due to the spiral line shape design of the conductor coil 5, it is subjected to more uniform force, thereby driving the diaphragm 4 to vibrate in a more uniform manner. This vibration converts the audio signal into mechanical vibration. The vibration of the diaphragm 4 causes the compression and expansion of the surrounding air, thereby generating sound waves. These sound waves propagate through the housing 10 and the holes on the upper cover 1 and the lower cover 9 to form audible sound. The design of the positioning plate 6 ensures that the vibration direction of the diaphragm 4 is accurate, further improving the sound quality. At the same time, the hole design of the upper cover 1 and the lower cover 9 helps to dissipate heat and reduce sound resonance, making the sound clearer. The planar diaphragm speaker realizes the conversion of audio signals into sound waves through the interaction of magnetic field and current, and ensures high-quality sound output through design optimization.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A planar diaphragm speaker, comprising a housing (10), characterized in that: The shell (10) has a cylindrical appearance, and an upper cover (1) and a lower cover (9) are clamped at both ends of the shell (10); an upper magnet (2) is fixed to the end close to the upper cover (1), and a bracket 2 (7) is fixed to the end close to the lower cover (9); a diaphragm (4), a conductor coil (5) and a positioning plate (6) are fixed between the upper magnet (2) and the bracket 2 (7).

2. The planar diaphragm speaker according to claim 1, characterized in that: The upper cover (1) and the lower cover (9) are circular in appearance, and are connected to the two ends of the housing (10) by snapping, and a plurality of holes are provided on the surfaces of the upper cover (1) and the lower cover (9).

3. The planar diaphragm speaker according to claim 1, characterized in that: Four brackets (7) are fixed around the upper surface of the lower cover (9), one end of each of the four brackets (7) is fixed with a lower magnet (8), one end of each of the brackets (7) is fixed with a bracket (3), and the diameter of the bracket (3) is smaller than that of the bracket (7).

4. The planar diaphragm speaker according to claim 3, characterized in that: The upper surface of the lower magnet (8) is connected to a positioning piece (6), and the lower magnet (8) does not contact the positioning piece (6). The positioning piece (6) is sleeved on the outside of the bracket (3), and a conductor coil (5) is provided on the upper surface of the positioning piece (6). The conductor coil (5) is in the shape of a spiral line.

5. The planar diaphragm speaker according to claim 1, characterized in that: The diaphragm (4) is sleeved on the outer surface of the bracket (3) and is not in contact with the upper magnet (2) and the conductor coil (5).

6. The planar diaphragm speaker according to claim 3, characterized in that: An upper magnet (2) is fixed to one end of the bracket one (3), and the upper magnet (2) and the lower magnet (8) have four fixing rods (11) respectively connected to the bracket one (3).

7. The planar diaphragm speaker according to claim 1, characterized in that: Three annular magnets are arranged inside the upper magnet (2) and the lower magnet (8), and are all fixed by four fixing rods (11).

Images