Thin horn structure

Abstract

The utility model relates to the technical field of thin-type horns, in particular to a thin-type horn structure, which comprises a basin frame, a vibrating diaphragm and a dustproof cap covering the top of the vibrating diaphragm, the periphery of the vibrating diaphragm is annularly attached to the top of the basin frame, a first boss annularly protrudes from the bottom of the dustproof cap, and a second boss annularly protrudes from the top of the vibrating diaphragm. The first boss and the second boss are concentrically arranged and buckled with each other, so that the dustproof cap can be quickly positioned and installed at the top of the vibrating diaphragm, the dustproof cap and the vibrating diaphragm are kept concentric after installation, and harmonic distortion caused by vibrating diaphragm deformation due to uneven stress when the vibrating diaphragm vibrates caused by eccentricity of the dustproof cap is avoided. And the assembly efficiency between the dustproof cap and the vibrating diaphragm can be improved.

Description

Technical Field

[0001] This utility model relates to the field of thin speaker technology, specifically to a thin speaker structure. Background Technology

[0002] A thin loudspeaker is a type of low-profile loudspeaker that includes a support, voice coil, and magnetic return section. The lower end of the voice coil extends into the gap between the upper end of the U-shaped iron and the iron plate, and a diaphragm is connected to the top of the voice coil. Thin loudspeakers with internal magnetic return are characterized by their small size, high stability, and long service life.

[0003] Traditional thin speakers are difficult to position if a dust cap is added to the top. This can easily lead to structural positioning deviations after assembly, resulting in uneven stress on the diaphragm during vibration, causing diaphragm deformation and harmonic distortion. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a thin speaker structure.

[0005] The purpose of this utility model is achieved through the following technical solution: a thin speaker structure, including a frame, a diaphragm, and a dust cap covering the top of the diaphragm. The outer periphery of the diaphragm is circumferentially attached to the top of the frame. The bottom of the dust cap has a first protrusion protruding in an annular shape, and the top of the diaphragm has a second protrusion protruding in an annular shape. The first protrusion and the second protrusion are concentrically arranged and interlock with each other.

[0006] Preferably, the diaphragm has an annular recessed groove, and the thin horn structure further includes an annular spring that fits into the interior of the frame, with the groove abutting against the spring.

[0007] Preferably, the inside of the basin frame is provided with an annular limiting platform, and the outer periphery of the elastic wave is annularly fitted to the annular limiting platform.

[0008] Preferably, the top surface of the dust cap is engraved with a CD pattern.

[0009] Preferably, the thin speaker structure further includes a U-shaped iron housed in the middle of the frame, a first magnet housed in the inner cavity of the U-shaped iron, a washer attached to the top of the first magnet, a second magnet attached to the top of the washer, and a voice coil that extends movably into the inner cavity of the U-shaped iron. A fixing hole is provided in the middle of the diaphragm, and the voice coil passes through and is attached to the fixing hole.

[0010] Preferably, the bottom of the basin stand is provided with an insert hole, and the outer periphery of the bottom of the U-shaped iron is provided with an annular relief groove that abuts against the inner sidewall of the insert hole, and the bottom of the U-shaped iron is fixedly connected to the insert hole.

[0011] Preferably, the basin stand has mounting holes on all four sides.

[0012] The beneficial effects of this utility model are as follows: The thin speaker structure of this utility model adopts a frame, a diaphragm, and a dust cap covering the top of the diaphragm. The outer periphery of the diaphragm is circumferentially attached to the top of the frame. The bottom of the dust cap has a first protrusion, and the top of the diaphragm has a second protrusion. The first and second protrusions are concentrically arranged and interlock with each other, which is conducive to the quick positioning and installation of the dust cap on the top of the diaphragm. After installation, the dust cap and the diaphragm remain concentric, avoiding uneven force on the diaphragm during vibration caused by the eccentricity of the dust cap, which would lead to diaphragm deformation and harmonic distortion. It also helps to improve the assembly efficiency between the dust cap and the diaphragm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the present invention;

[0015] Figure 3 yes Figure 2 Enlarged diagram of A in the middle;

[0016] Figure 4 This is a cross-sectional view of the present invention;

[0017] Figure 5 yes Figure 4 A magnified diagram of B in the diagram.

[0018] The attached figures are labeled as follows: 1. Bass frame; 2. Diaphragm; 3. Dust cap; 4. First boss; 5. Second boss; 6. Groove; 7. Spider; 8. Annular limiting platform; 9. CD pattern; 10. U-shaped iron; 11. First magnet; 12. Washer; 13. Second magnet; 14. Voice coil; 15. Fixing hole; 16. Mounting hole; 17. Annular clearance groove; 18. Mounting hole. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0020] like Figure 1-5 As shown, a thin speaker structure includes a frame 1, a diaphragm 2, and a dust cap 3 covering the top of the diaphragm 2. The outer periphery of the diaphragm 2 is circumferentially attached to the top of the frame 1. The bottom of the dust cap 3 has a first protrusion 4, and the top of the diaphragm 2 has a second protrusion 5. The first protrusion 4 and the second protrusion 5 are concentrically arranged and interlocked with each other.

[0021] This thin speaker structure comprises a frame 1, a diaphragm 2, and a dust cap 3 covering the top of the diaphragm 2. The outer periphery of the diaphragm 2 is circumferentially attached to the top of the frame 1. The bottom of the dust cap 3 has a first protrusion 4, and the top of the diaphragm 2 has a second protrusion 5. The first protrusion 4 and the second protrusion 5 are concentrically arranged and interlocked with each other, which facilitates the quick positioning and installation of the dust cap 3 on the top of the diaphragm 2. After installation, the dust cap 3 and the diaphragm 2 remain concentric, avoiding uneven force on the diaphragm 2 during vibration due to the eccentricity of the dust cap 3, which would cause deformation of the diaphragm 2 and generate harmonic distortion. It also helps to improve the assembly efficiency between the dust cap 3 and the diaphragm 2.

[0022] Furthermore, the diaphragm 2 has an annular recessed groove 6, and the thin speaker structure also includes an annularly fitted wave 7 inside the frame 1, with the groove 6 abutting against the wave 7; the wave 7 not only supports the diaphragm 2, ensuring that the diaphragm 2 can vibrate freely under the action of sound pressure, but also allows the diaphragm 2 to quickly return to its initial position when the sound signal stops, because the diaphragm 2 needs to be able to respond quickly to the periodic changes of the audio signal in order to produce continuous sound.

[0023] Furthermore, the inside of the basin frame 1 is provided with an annular limiting platform 8, and the outer periphery of the spring wave 7 is annularly fitted to the annular limiting platform 8, which facilitates the quick limiting and fixing of the spring wave 7 and the annular limiting platform 8 during assembly, thereby improving assembly efficiency.

[0024] Furthermore, the top surface of the dust cap 3 is engraved with CD pattern 9, that is, concentric circle pattern, which can disperse high-frequency sound waves into smaller reflected beams, reduce strong reflections in one direction, thereby reducing the "harshness" or "metallic sound" in the high-frequency band, making the high-frequency response smoother, and also helping to improve the sensory effect on the speaker surface, which can attract the user's sensory attention more.

[0025] Furthermore, the thin speaker structure also includes a U-shaped iron 10 housed in the middle of the frame 1, a first magnet 11 housed in the inner cavity of the U-shaped iron 10, a washer 12 attached to the top of the first magnet 11, a second magnet 13 attached to the top of the washer 12, and a voice coil 14 that extends movably into the inner cavity of the U-shaped iron 10. A fixing hole 15 is provided in the middle of the diaphragm 2, and the voice coil 14 passes through and is attached to the fixing hole 15.

[0026] Furthermore, the bottom of the basin frame 1 is provided with an insert hole 16, and the bottom outer periphery of the U-shaped iron 10 is provided with an annular relief groove 17 that abuts against the inner side wall of the insert hole 16. The bottom of the U-shaped iron 10 is fixedly connected to the insert hole 16. During assembly, the U-shaped iron 10 can be quickly positioned and assembled into the insert hole 16 of the basin frame 1.

[0027] Furthermore, mounting holes 18 are provided around the perimeter of the speaker frame 1 so that the thin speaker structure can be installed in existing speaker equipment by means of screws passing through the mounting holes 18.

[0028] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A thin horn structure, characterized in that: The device includes a frame, a diaphragm, and a dust cap covering the top of the diaphragm. The outer periphery of the diaphragm is circumferentially attached to the top of the frame. The bottom of the dust cap has a first protrusion, and the top of the diaphragm has a second protrusion. The first and second protrusions are concentrically arranged and interlock with each other.

2. The thin horn structure according to claim 1, characterized in that: The diaphragm has an annular recessed groove, and the thin horn structure also includes an annular spring that fits into the inside of the frame, with the groove abutting against the spring.

3. The thin horn structure according to claim 2, characterized in that: The inside of the basin frame is provided with an annular limiting platform, and the outer periphery of the elastic wave is annularly fitted to the annular limiting platform.

4. The thin horn structure according to claim 1, characterized in that: The top surface of the dust cap is engraved with a CD pattern.

5. A thin horn structure according to claim 1, characterized in that: The thin speaker structure also includes a U-shaped iron housed in the middle of the frame, a first magnet housed in the inner cavity of the U-shaped iron, a washer attached to the top of the first magnet, a second magnet attached to the top of the washer, and a voice coil that extends movably into the inner cavity of the U-shaped iron. A fixing hole is provided in the middle of the diaphragm, and the voice coil passes through and is attached to the fixing hole.

6. The thin horn structure according to claim 5, characterized in that: The bottom of the basin stand is provided with an insertion hole, and the outer periphery of the bottom of the U-shaped iron is provided with an annular relief groove that abuts against the inner sidewall of the insertion hole. The bottom of the U-shaped iron is fixedly connected to the insertion hole.

7. A thin horn structure according to claim 1, characterized in that: Mounting holes are provided on all four sides of the basin stand.

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