Novel ultrathin loudspeaker

Abstract

The utility model discloses a novel ultrathin loudspeaker, which comprises a basin stand, a magnet assembly and a vibration assembly, and is characterized in that the cone paper and a damper-shaped structure are improved, and the cone paper is designed into a special-shaped structure with a first folding ring, a V-shaped valley and a second folding ring, so that even if the loudspeaker is thinned, the cone paper does not interfere with the up-and-down movement of U iron; and secondly, the damper is designed into a special-shaped structure with a fourth annular step part, a third annular transition part, an annular U-shaped groove and a fifth annular step part, so that the damper and the drum paper are substantially in symmetrical reverse design, U iron can be avoided, interference to vertical movement of the U iron is avoided, the drum paper can be supported, and the service life of the drum paper is prolonged. The magnet assembly and the vibration assembly can be always kept on the same central axis when moving, and the phenomenon of deviation and eccentricity does not occur, so that the thickness of the loudspeaker is reduced while good acoustic performance is ensured, and the loudspeaker can be suitable for more ultrathin scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustics, in particular to a novel ultra-thin loudspeaker. Background Art

[0002] Speakers, as electro-acoustic conversion devices, are widely used in various audio equipment. At present, with the trend of continuous miniaturization of electronic products, consumers are also turning their attention to lightweight and easy-to-move audio products. As the source of sound, the ultra-thinness of general speaker units is particularly important.

[0003] Below, refer to the attached Figure 1 A detailed description of the existing speakers, Figure 1 is a cross-sectional view of an existing speaker. Figure 1 As shown, the existing speaker includes a basin frame 1, a magnet assembly 2 and a vibration assembly 3, the magnet assembly 2 includes a U iron 21, a magnet 22, a washer 23 and an auxiliary magnet 24, the vibration assembly 3 includes a voice coil 31, a trumpet-shaped drum paper 32 and a transverse wave-shaped elastic wave 33, the U iron 21, the magnet 22, the washer 23, the auxiliary magnet 24, the elastic wave 33, the ring 31 and the drum paper 32 are installed and fixed in the basin frame 1 from bottom to top, in order to ensure that the voice coil can always not deviate from the central axis during the up and down movement, it is necessary to stagger the drum paper and the elastic wave in space and fix them to the outer wall of the voice coil respectively, so as to realize the double limitation of the movement trajectory of the voice coil and ensure that the voice coil is tightly along the center axis. The spindle moves up and down without causing any offset, but this design stacks all the components in sequence from bottom to top in the basin frame, which increases the thickness of the entire speaker and makes it too large. This speaker obviously cannot meet the ultra-thin scenario. To make the existing speakers thinner, if you simply compress the longitudinal space distance between the components, this will cause the U-iron to interfere with the elastic wave and the drum paper when it moves up and down. If you further improve and remove the elastic wave, and design the drum paper into a V shape, although it can save longitudinal space and make the speaker thinner, the drum paper is weak and only uses the drum paper to limit the up and down movement of the voice coil, and the voice coil is prone to shaking and offset. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a novel ultra-thin speaker, comprising:

[0005] The basin frame includes, from inside to outside, an integrally formed central hole, a first annular step portion, a first annular transition portion, a second annular step portion, a second annular transition portion, and a third annular step portion, and the whole extends obliquely upward;

[0006] The magnet assembly is installed on the center hole; the magnet assembly includes a U iron, a magnet, a washer and an auxiliary magnet, and the magnet, the washer and the auxiliary magnet are stacked on the U iron from bottom to top in sequence;

[0007] A vibration component includes a voice coil, a drum paper and a spring; the voice coil is arranged in a U-iron; the drum paper includes a drum paper body, the inner side of the drum paper body is fixedly connected to the outer wall of the voice coil, and the outer side of the drum paper body is fixedly connected to the third annular step portion; the drum paper body includes a first folded ring, a V-shaped valley and a second folded ring, and the first folded ring and the second folded ring are respectively located on both sides of the V-shaped valley; the spring is located between the drum paper and the first annular step portion, the spring includes a fourth annular step portion, a third annular transition portion, an annular U groove and a fifth annular step portion, the third annular transition portion is located between the fourth annular step portion and the annular U groove and extends obliquely downward, the annular U groove is located obliquely below the fourth annular step portion, the fifth annular step portion is located at the edge of the annular U groove contour, the upper surface of the fourth annular step portion is fixedly connected to the bottom of the V-shaped valley, and the lower surface of the fifth annular step portion is fixedly connected to the upper surface of the second annular step portion; the symmetry centers of the U-iron, the magnet, the washer, the auxiliary magnet, the spring and the drum paper are all located on the same straight line.

[0008] Preferably, the U-iron includes an integrally formed U-iron body and a boss formed by concavely upwardly at the bottom of the U-iron body, an annular groove is provided between the inner wall of the U-iron body and the boss, the voice coil is arranged above the annular groove, and the magnet, washer and auxiliary magnet are stacked on the boss in sequence from bottom to top.

[0009] Preferably, the inner wall of the U iron body has a plurality of vent holes distributed along the circumferential direction.

[0010] Preferably, the first fold ring, the V-shaped valley and the second fold ring are integrally formed or fixedly connected, and the second fold ring is higher than the first fold ring.

[0011] Preferably, the drum paper body is provided with a first rubber edge and a second rubber edge along its contour edge, the first fold ring contour edge is fixedly connected to the first rubber edge, the second fold ring contour edge is fixedly connected to the second rubber edge, the lower surface of the first rubber edge is fixedly connected to the outer wall of the voice coil, and the lower surface of the second rubber edge is fixedly connected to the upper surface of the third annular step portion.

[0012] Preferably, the fourth annular step portion, the third annular transition portion, the annular U-groove and the fifth annular step portion are integrally formed or fixedly connected.

[0013] Preferably, the drum paper has a three-layer structure, including an aluminum layer, a damping layer and a polypropylene layer, the damping layer is arranged between the aluminum layer and the polypropylene layer, and the damping layer is used to fix and bond the aluminum layer and the polypropylene layer.

[0014] Preferably, the vibration assembly further comprises a dust cover, which is in a basin shape and inverted above the voice coil, and the edge of the dust cover contour is fixedly connected between the V-shaped valley and the second fold ring.

[0015] Preferably, the voice coil is provided with evenly distributed heat dissipation holes.

[0016] Preferably, a connection terminal is provided on the outer side wall of the basin frame.

[0017] The beneficial effect is that the present application improves the shape structure of the drum paper and the elastic wave, and designs the drum paper into a special-shaped structure with a first fold ring, a V-shaped valley and a second fold ring. In this way, even if the speaker is thinned, the drum paper will not interfere with the up and down movement of the U iron. Secondly, the elastic wave is designed to have a special-shaped structure with a fourth annular step portion, a third annular transition portion, an annular U groove and a fifth annular step portion. The upper surface of the fourth annular step portion is fixedly connected to the bottom of the V-shaped valley, the lower surface of the fifth annular step portion is fixedly connected to the upper surface of the second annular step portion, and the third annular transition portion extends obliquely downward. The elastic wave is generally symmetrically designed in reverse with the drum paper. In this way, it can not only avoid the U iron and avoid interfering with the up and down movement of the U iron, but also provide support for the drum paper, forming a double restriction on the up and down movement of the voice coil, so that the magnet assembly and the vibration assembly can always remain on the same central axis during movement without offset eccentricity. It can be seen that this product reduces the thickness of the speaker while ensuring good acoustic performance, and can be suitable for more ultra-thin scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is a schematic cross-sectional view of an existing loudspeaker;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of the basin frame of the utility model;

[0023] In the figure:

[0024] 1. basin frame; 11. center hole; 12. first annular step portion; 13. first annular transition portion; 14. second annular step portion; 15. second annular transition portion; 16. third annular step portion;

[0025] 2. Magnet assembly; 21. U iron; 22. Magnet; 23. Washer; 24. Auxiliary magnet;

[0026] 3. Vibration components;

[0027] 31. Voice coil;

[0028] 32, drum paper; 321, drum paper body; 3211, first fold ring; 3212, V-shaped valley; 3213, second fold ring; 322, first rubber edge; 323, second rubber edge;

[0029] 33, elastic wave; 331, fourth annular step portion; 332, third annular transition portion; 333, annular U groove; 334, fifth annular step portion;

[0030] 34. Dust cover. DETAILED DESCRIPTION

[0031] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0032] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] Example

[0035] See also Figure 3 and Figure 4 , Figure 3 It is a cross-sectional schematic diagram of the utility model. Figure 4This is a cross-sectional schematic diagram of the basin frame of the utility model. This embodiment provides a novel ultra-thin speaker, including a basin frame 1, a magnet assembly 2 and a vibration assembly 3, wherein the basin frame 1 includes, from the inside to the outside, an integrally formed central hole 11, a first annular step portion 12, a first annular transition portion 13, a second annular step portion 14, a second annular transition portion 15, and a third annular step portion 16, and the whole extends obliquely upward; a connection terminal is arranged on the outer wall of the basin frame 1.

[0036] The magnet assembly 2 is installed on the center hole 11; the magnet assembly 2 includes a U-iron 21, a magnet 22, a washer 23 and an auxiliary magnet 24; the magnet 22, the washer 23 and the auxiliary magnet 24 are stacked on the U-iron 321 from bottom to top in sequence; the U-iron 21 includes an integrally formed U-iron body and a boss formed by an upward concave bottom of the U-iron body, the magnet 22, the washer 23 and the auxiliary magnet 24 are stacked on the boss in sequence from bottom to top, an annular groove is provided between the inner side wall of the U-iron body and the boss, and a plurality of air holes are distributed on the inner wall of the U-iron body along the circumferential direction. When the vibration assembly 3 vibrates axially, the air waves generated in the U-iron 21 are discharged and sucked in through the air holes, reducing air resistance, thereby improving the sensitivity of the U-iron 21.

[0037] See also Figure 2 , Figure 2 The utility model is a schematic diagram of the overall structure, the vibration assembly 3 includes a voice coil 31, a drum paper 32, a spring 33 and a dust cover 34;

[0038] The voice coil 31 is arranged in the U iron 21 and located above the annular groove. The voice coil 31 is provided with evenly distributed heat dissipation holes. The heat dissipation holes can not only improve the sound quality but also extend the service life of the voice coil. Good heat dissipation helps to maintain the stability and consistency of the voice coil, thereby providing purer and more accurate sound reproduction.

[0039] The drum paper 32 includes a drum paper body 321, and the drum paper body 321 is provided with a first rubber edge 322 and a second rubber edge 323 along its contour edge. The drum paper body 321 includes a first folding ring 3211, a V-shaped valley 3212, and a second folding ring 3213 that are integrally formed or fixedly connected. The second folding ring 3213 is higher than the first folding ring 3211, and the first folding ring 3211 and the second folding ring 3213 are respectively located on both sides of the V-shaped valley 3212; the contour edge of the first folding ring 3211 is fixedly connected to the first rubber edge 322, the contour edge of the second folding ring 3213 is fixedly connected to the second rubber edge 323, the lower surface of the first rubber edge 322 is fixedly connected to the outer wall of the voice coil 31, and the lower surface of the second rubber edge 323 is fixedly connected to the upper surface of the third annular step portion 16;

[0040] The drum paper body 321 has a three-layer structure, including an aluminum layer, a damping layer and a polypropylene layer. The damping layer is arranged between the aluminum layer and the polypropylene layer, and the damping layer is used to fix and bond the aluminum layer and the polypropylene layer. The three-layer structure of the drum paper body 321 can not only enhance the rigidity of the drum paper but also increase the damping and absorb vibrations within a specific frequency range to achieve specific acoustic characteristics.

[0041] The damper 33 is located between the drum paper 32 and the first annular step portion 12. The damper 33 is made of fine yarn material. The fine yarn has good flexibility and elasticity, so that the damper 33 can provide appropriate support and restoring force when the voice coil moves up and down, and the porous structure of the fine yarn material helps to absorb vibration energy and reduce unnecessary resonance, thereby improving the clarity and detail performance of the sound quality; the damper 33 includes a fourth annular step portion 331, a third annular transition portion 332, an annular U groove 333 and a fifth annular step portion 334 that are integrally formed or fixedly connected. The third annular transition portion 332 is located between the fourth annular step portion 331 and the annular U groove 333 and extends obliquely downward. The annular U groove 333 is located obliquely below the fourth annular step portion 331. The fifth annular step portion 334 is located at the contour edge of the annular U groove 333. The upper surface of the fourth annular step portion 331 is fixedly connected to the bottom of the V-shaped valley 3212, and the lower surface of the fifth annular step portion 334 is fixedly connected to the upper surface of the second annular step portion 14.

[0042] The dust cover 34 is in a basin shape and is buckled upside down on the voice coil 31, and the edge of the dust cover 34 is fixedly connected between the V-shaped valley 3212 and the second fold ring 3213;

[0043] The symmetric centers of the U iron 21 , the magnet 22 , the washer 23 , the auxiliary magnet 24 , the damper 33 , the drum paper 32 and the dust cover 34 are all located on the same straight line.

[0044] In summary, the present application improves the shape structure of the drum paper 32 and the damper 33, and designs the drum paper 32 into a special-shaped structure having a first fold ring 3211, a V-shaped valley 3212, and a second fold ring 3213. In this way, even if the speaker is thinner, the drum paper 32 will not interfere with the up and down movement of the U iron 21. Secondly, the damper 33 is designed to have a special-shaped structure having a fourth annular step portion 331, a third annular transition portion 332, an annular U groove 333, and a fifth annular step portion 334. The upper surface of the fourth annular step portion 331 is fixedly connected to the bottom of the V-shaped valley 3212, and the lower surface of the fifth annular step portion 334 is fixedly connected to the bottom of the V-shaped valley 3212. The surface is fixedly connected to the upper surface of the second annular step portion 15, and the third annular transition portion 332 extends obliquely downward. The elastic wave 33 is generally symmetrically reversely designed with the drum paper 32, so that it can not only avoid the U iron 21 and avoid interference with the up and down movement of the U iron 21, but also support the drum paper 32, forming a double restriction on the up and down movement of the voice coil 31, so that the magnet assembly 2 and the vibration assembly 3 can always maintain the same central axis during movement without deviation and eccentricity. It can be seen that this product reduces the thickness of the speaker while ensuring good acoustic performance, and can be suitable for more ultra-thin scenes.

[0045] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A new type of ultra-thin speaker, characterized in that: include: The basin frame (1) comprises, from the inside to the outside, an integrally formed central hole (11), a first annular step portion (12), a first annular transition portion (13), a second annular step portion (14), a second annular transition portion (15), and a third annular step portion (16), and the whole extends obliquely upwards; A magnet assembly (2) is mounted on the central hole (11); the magnet assembly (2) comprises a U iron (21), a magnet (22), a washer (23) and an auxiliary magnet (24); the magnet (22), the washer (23) and the auxiliary magnet (24) are stacked on the U iron (21) in sequence from bottom to top; A vibration component (3) comprises a voice coil (31), a drum paper (32) and a spring (33), wherein the voice coil (31) is arranged in the U iron (21); the drum paper (32) comprises a drum paper body (321), the inner side of the drum paper body (321) is fixedly connected to the outer wall of the voice coil (31), and the outer side of the drum paper body (321) is fixedly connected to the third annular step portion (16); the drum paper body (321) comprises a first folded ring (3211), a V-shaped valley (3212) and a second folded ring (3213), wherein the first folded ring (3211) and the second folded ring (3213) are respectively located on both sides of the V-shaped valley (3212); the spring (33) is located between the drum paper (32) and the first annular step portion (12), and the spring (33) comprises a fourth annular step portion (331), a third annular step portion (332), and a fourth annular step portion (331). A transition portion (332), an annular U groove (333) and a fifth annular step portion (334), wherein the third annular transition portion (332) is located between the fourth annular step portion (331) and the annular U groove (333) and extends obliquely downward, the annular U groove (333) is located obliquely below the fourth annular step portion (331), the fifth annular step portion (334) is located at the edge of the contour of the annular U groove (333), the upper surface of the fourth annular step portion (331) is fixedly connected to the bottom of the V-shaped valley (3212), and the lower surface of the fifth annular step portion (334) is fixedly connected to the upper surface of the second annular step portion (14); the symmetry centers of the U iron (21), the magnet (22), the washer (23), the auxiliary magnet (24), the elastic wave (33) and the drum paper (32) are all located on the same straight line.

2. The novel ultra-thin speaker according to claim 1 is characterized in that: The U-iron (21) comprises an integrally formed U-iron body and a boss formed by concavely upwardly at the bottom of the U-iron body, an annular groove is provided between the inner side wall of the U-iron body and the boss, the voice coil is arranged above the annular groove, and the magnet (22), washer (23) and auxiliary magnet (24) are stacked on the boss in sequence from bottom to top.

3. The novel ultra-thin speaker according to claim 2 is characterized in that: The inner wall of the U iron body is provided with a plurality of vent holes distributed along the circumferential direction.

4. The novel ultra-thin speaker according to claim 1 is characterized in that: The first fold ring (3211), the V-shaped valley (3212) and the second fold ring (3213) are integrally formed or fixedly connected, and the second fold ring (3213) is higher than the first fold ring (3211).

5. The novel ultra-thin speaker according to claim 1 is characterized in that: The drum paper body (321) is provided with a first rubber edge (322) and a second rubber edge (323) along its contour edge; the contour edge of the first fold ring (3211) is fixedly connected to the first rubber edge (322); the contour edge of the second fold ring (3213) is fixedly connected to the second rubber edge (323); the lower surface of the first rubber edge (322) is fixedly connected to the outer wall of the voice coil (31); and the lower surface of the second rubber edge (323) is fixedly connected to the upper surface of the third annular step portion (16).

6. The novel ultra-thin speaker according to claim 1 is characterized in that: The fourth annular step portion (331), the third annular transition portion (332), the annular U groove (333) and the fifth annular step portion (334) are integrally formed or fixedly connected.

7. The novel ultra-thin speaker according to claim 1 is characterized in that: The drum paper body (321) has a three-layer structure, including an aluminum layer, a damping layer and a polypropylene layer. The damping layer is arranged between the aluminum layer and the polypropylene layer, and the damping layer is used to fix and bond the aluminum layer and the polypropylene layer.

8. The novel ultra-thin speaker according to claim 1 is characterized in that: The vibration component (3) also includes a dust cover (34), which is in the shape of a basin and is inverted above the voice coil (31), and the contour edge of the dust cover (34) is fixedly connected between the V-shaped valley (3212) and the second fold ring (3213).

9. The novel ultra-thin speaker according to claim 1, characterized in that: The voice coil (31) is provided with evenly distributed heat dissipation holes.

10. The novel ultra-thin speaker according to claim 1, characterized in that: The outer side wall of the basin frame (1) is provided with a connection terminal.

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