Multi-vertex sound production module, loudspeaker and equipment

Abstract

The multi-vertex sounding module comprises a voice coil, a magnetic circuit and a sound basin, the magnetic circuit comprises a magnetic conductive middle column and a magnetizer wound on the outer side of the magnetic conductive middle column, and a gap for accommodating the voice coil is arranged between the magnetic conductive middle column and the magnetizer. The number of the vertexes on the cross section of the voice coil is equal to the number of the vertexes of the cross section of the magnetic conductive middle column and equal to the vertexes of the cross section of the inner hole of the magnetizer, the number of the vertexes on the voice coil is larger than or equal to three, and the shape of the cross section of the voice coil is the same as that of the cross section of the inner hole of the magnetizer. The shape of the cross section of the voice coil is the same as that of the cross section of the magnetic conductive middle column. According to the utility model, through the multi-vertex voice coil, the magnetic circuit and the voice cone structure, the intensity of driving the voice coil is greatly enhanced, the tone quality is improved, the distortion is reduced, the power and durability of the loudspeaker are increased, and thus the grade of equipment using the loudspeaker is improved.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to an irregularly shaped sound-generating unit, loudspeaker and device. Background Technology

[0002] The voice coil, magnetic circuit, and cone are important components of a loudspeaker's sound-producing unit. The three interact with each other. For example, in a moving-coil loudspeaker, the current-carrying conductor experiences a force in a magnetic field. The changing current passes through the coil, generating a changing magnetic field, which causes the loudspeaker's diaphragm to vibrate and produce sound. The core of its electroacoustic conversion is in the voice coil. In current loudspeaker structures, the voice coil is usually a simple ring structure. This type of voice coil will deform under high frequency and high power, resulting in distortion and failure, affecting the performance. Utility Model Content

[0003] This invention aims to overcome the shortcomings of existing technologies by providing a high-strength, low-distortion multi-vertex sound module, loudspeaker, and device.

[0004] The present invention solves the technical problem by adopting the following technical solution: a multi-vertex sound-generating module, comprising a voice coil, a magnetic circuit assembly, a cone, and a frame. The cone is fixed on the frame. The magnetic circuit assembly comprises a magnetically conductive central column, a magnet, and an upper magnetically conductive body. The upper magnetically conductive body is disposed on one magnetic pole of the magnet and conducts a magnetic circuit. A magnetic gap is formed between the upper magnetically conductive body and the magnetically conductive central column. The magnetically conductive central column is connected to the other magnetic pole of the magnet and conducts a magnetic circuit. The voice coil is installed in the magnetic gap. A wire is wound around the lower end of the voice coil. The number of vertices on the cross-section of the voice coil is equal to the number of vertices on the cross-section of the magnetically conductive central column and equal to the number of vertices on the cross-section of the inner hole of the upper magnetically conductive body. The number of vertices on the voice coil is greater than or equal to three.

[0005] When the number of vertices is odd, the center point is the intersection of the straight lines from each vertex in the voice coil to the midpoint of the line segment between its two opposite vertices. The distances from the vertices on the voice coil and magnetic circuit assembly to the center point are equal, and the straight-line distance from the vertex to the center point is greater than the straight-line distance from other points in the line segment where the vertex is located to the center point.

[0006] When the number of vertices is even, the center point is the intersection of the straight lines from each vertex in the voice coil to the opposite vertex. The distances from the vertices on the voice coil and magnetic circuit assembly to the center point are equal, and the straight-line distances from all vertices to the center point are greater than the straight-line distances from other points in the line segment where the vertex is located to the center point.

[0007] In several embodiments, the shape of the voice coil cross-section is the same as the cross-sectional shape of the inner hole of the upper magnetic conductor, and the size of the voice coil cross-section is smaller than the size of the cross-sectional shape of the inner hole of the upper magnetic conductor; the shape of the voice coil cross-section is the same as the cross-sectional shape of the magnetic conductor column, and the size of the voice coil cross-section is larger than the size of the cross-sectional shape of the magnetic conductor column.

[0008] In several embodiments, the shape of any cross-section on the cone is consistent with the shape of the voice coil cross-section.

[0009] In several embodiments, the shape of the inner hole in the cone that connects to the voice coil is consistent with the shape of the voice coil's cross-section.

[0010] In several embodiments, the voice coil cross-section is one of a triangle, a square, or a pentagon.

[0011] In several embodiments, the voice coil cross-section is a closed shape consisting of multiple convex circular arcs connected in sequence.

[0012] In several embodiments, the voice coil cross-section is a closed shape consisting of a series of convex acute angles.

[0013] And a loudspeaker having the aforementioned multi-vertex sound-emitting module.

[0014] And, a device having the aforementioned speaker.

[0015] This utility model has the following beneficial effects:

[0016] This invention significantly strengthens the driving voice coil through a multi-vertex voice coil, magnetic circuit, and cone structure, thereby improving sound quality, reducing distortion, increasing the power and durability of the loudspeaker, and thus enhancing the grade of equipment using this loudspeaker.

[0017] This invention enhances the strength of the diaphragm through a multi-vertex structure, reduces split vibration and distortion, improves distortion performance indicators, and makes the subtle dynamic response in the electrical signal more rapid. It can capture the subtle emotions and dynamics in the music, making the expressiveness of the music richer. Attached Figure Description

[0018] The accompanying drawings described herein are for illustrative purposes only and do not represent all possible implementations, nor should they be considered as limiting the scope of this invention.

[0019] Figure 1 The overall structure of the multi-vertex sound module in Embodiment 1 is schematically shown;

[0020] Figure 2 The cross-sectional structure of the voice coil and magnetic circuit in Embodiment 1 is schematically shown;

[0021] Figure 3 The side connection structure between the voice coil and the diaphragm in Embodiment 1 is schematically shown;

[0022] Figure 4 The diagram schematically illustrates the top view of the voice coil, diaphragm, and magnetic circuit in Embodiment 2;

[0023] Figure 5 schematically shown Figure 3 Top view of the midrange coil and magnetic circuit;

[0024] Figure 6 The diagram schematically illustrates the top view of the voice coil and magnetic circuit in Embodiment 3;

[0025] Figure 7 schematically shown Figure 5 The amplification structure of the midrange coil;

[0026] Figure 8 The top view of the voice coil in Embodiment 4 is shown schematically. Detailed Implementation

[0027] The embodiments of the present utility model are described in detail below. In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments.

[0028] The terminology used herein is intended to explain the embodiments and is not intended to limit and / or restrict the present invention.

[0029] For example, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "relative", "front, back, left and right" indicate relative or absolute configuration. They not only indicate such configuration in a strict sense, but also indicate a state of relative displacement with tolerance, or with an angle or distance that can achieve the same level of functionality.

[0030] like Figure 1As shown, the multi-vertex sound-generating module of this utility model includes a voice coil 10, a magnetic circuit assembly 20, a cone 30, and a frame 40. The cone 30 is fixed on the frame 40. The magnetic circuit assembly 20 includes a magnetically conductive central column 21, a magnet 23, and an upper magnetically conductive body 22. The upper magnetically conductive body 22 is disposed on one magnetic pole of the magnet 23 and conducts the magnetic circuit. A magnetic gap 24 is formed between the upper magnetically conductive body 22 and the magnetically conductive central column 21. The magnetically conductive central column 21 is connected to the other magnetic pole of the magnet 23 and conducts the magnetic circuit. The voice coil 10 is installed in the magnetic gap 24. A wire is wound around the lower end of the voice coil 10. The number of vertices on the cross-section of the voice coil 10 is equal to the number of vertices on the cross-section of the magnetic guide column 21 and equal to the number of vertices on the cross-section of the inner hole of the upper magnetic guide body 22. The number of vertices on the voice coil 10 is greater than or equal to three. For ease of understanding, we set the vertex 1a on the voice coil 10, the vertex 1b on the magnetic guide column 21, and the vertex 1c on the upper magnetic guide body 22.

[0031] When the number of vertices is odd, the center point is the intersection of the straight lines from each vertex 1a in the voice coil 10 to the midpoint of the line segment between its two opposite vertices 1a. The distances from the vertices on the voice coil 10 and the magnetic circuit assembly 20 to the center point are equal, and the straight-line distance from the vertex to the center point is greater than the straight-line distance from other points in the line segment where the vertex is located to the center point. That is, the distance from each vertex 1a to the center point is equal, the distance from each vertex 1b to the center point is equal, and the distance from each vertex 1c to the center point is equal.

[0032] When the number of vertices is even, the center point is the intersection of the straight lines from each vertex 1a in the voice coil 10 to the opposite vertex. The distances from the vertices on the voice coil 10 and the magnetic circuit assembly 20 to the center point are equal. The straight-line distance from all vertices to the center point is greater than the straight-line distance from other points in the line segment where the vertex is located to the center point. That is, the distance from each vertex 1a to the center point is equal, the distance from each vertex 1b to the center point is equal, and the distance from each vertex 1c to the center point is equal.

[0033] Furthermore, the shape of the cross-section of the voice coil 10 is the same as the cross-section of the inner hole of the upper magnetic conductor 22, and the size of the cross-section of the voice coil 10 is smaller than the size of the cross-section of the inner hole of the upper magnetic conductor 22; the shape of the cross-section of the voice coil 10 is the same as the cross-section of the magnetic conductor 21, and the size of the cross-section of the voice coil 10 is larger than the size of the cross-section of the magnetic conductor 21.

[0034] Furthermore, the corresponding loudspeaker with the aforementioned multi-vertex sound-emitting module, and the device with the loudspeaker, are all within the scope of protection of this application.

[0035] Example 1

[0036] like Figures 2-3As shown, in this embodiment, the number of corresponding vertices is odd. Specifically, the cross-section of the voice coil 10 is triangular, or it can be square or other shapes. The inner holes of the magnetically conductive central column 21 and the upper magnetically conductive body 22 are also triangular structures. Furthermore, the shape of the inner hole in the diaphragm 30 connected to the voice coil 10 is the same as the shape of the cross-section of the voice coil 10, which is also triangular. Of course, the shape of any cross-section on the diaphragm 30 can also be the same as the shape of the cross-section of the voice coil 10, which is triangular. That is, the diaphragm can be roughly a triangular pyramidal structure.

[0037] Example 2

[0038] like Figures 4-5 As shown, in this embodiment, the number of corresponding vertices is even, and the cross-section of the voice coil 10 is a closed shape with multiple outwardly convex arcs connected in sequence, such as a multi-petaled plum blossom structure. The inner hole shape of the magnetically conductive central column 21 and the upper magnetically conductive body 22 is the same as the shape of the diaphragm 30.

[0039] and Figure 3 The upper conductor magnet 22 is shown as a dashed line, indicating that it is obscured by the cone 30 when viewed from above.

[0040] Example 3

[0041] like Figures 6-7 As shown, in this embodiment, the number of corresponding vertices is odd, and the cross-section of the voice coil 10 is pentagonal. The inner hole shape of the magnetically conductive central column 21 and the upper magnetically conductive body 22, as well as the shape of the diaphragm 30, are the same.

[0042] Example 4

[0043] like Figure 8 As shown, in this embodiment, the number of corresponding vertices is even, and the cross-section of the voice coil 10 is a closed shape with multiple outwardly convex acute angles connected in sequence, and the whole is symmetrical, roughly forming an octagonal star structure. The inner hole shape of the magnetically conductive central column 21 and the upper magnetically conductive body 22 and the shape of the diaphragm 30 are the same.

[0044] This utility model describes preferred embodiments, including the best mode known to the inventors for carrying out the utility model. Of course, variations of these preferred embodiments will be readily apparent to those skilled in the art. The inventors intend that those skilled in the art may use these variations as appropriate, and the inventors indicate that the utility model can be implemented in other ways than those specifically described herein. Therefore, this utility model includes all improvements encompassed by the spirit and scope of the utility model as defined by the claims. Moreover, unless otherwise stated or there is a clear contradiction in the content, this utility model includes any of the foregoing elements and all possible variations thereof.

Claims

1. A multi-vertex sound-generating module, comprising a voice coil, a magnetic circuit assembly, and a cone, wherein the magnetic circuit assembly comprises a magnetically conductive central column, a magnet, and an upper magnetically conductive body, the upper magnetically conductive body being disposed on one magnetic pole of the magnet and conducting the magnetic circuit, a magnetic gap being formed between the upper magnetically conductive body and the magnetically conductive central column, the magnetically conductive central column being connected to the other magnetic pole of the magnet and conducting the magnetic circuit, and the voice coil being installed in the magnetic gap, characterized in that, The number of vertices on the cross-section of the voice coil is equal to the number of vertices on the cross-section of the magnetic core, and equal to the number of vertices on the cross-section of the inner hole of the magnetic core, and the number of vertices on the voice coil is greater than or equal to three. When the number of vertices is odd, the center point is the intersection of the straight lines from each vertex in the voice coil to the midpoint of the line segment between its two opposite vertices. The distances from the vertices on the voice coil and magnetic circuit assembly to the center point are equal, and the straight-line distance from the vertex to the center point is greater than the straight-line distance from other points in the line segment where the vertex is located to the center point. When the number of vertices is even, the center point is the intersection of the straight lines from each vertex in the voice coil to the opposite vertex. The distances from the vertices on the voice coil and magnetic circuit assembly to the center point are equal, and the straight-line distances from all vertices to the center point are greater than the straight-line distances from other points in the line segment where the vertex is located to the center point.

2. The multi-vertex sound generation module according to claim 1, characterized in that, The shape of the voice coil cross-section is the same as the cross-sectional shape of the inner hole of the magnetic conductor, and the size of the voice coil cross-section is smaller than the size of the inner hole of the magnetic conductor; the shape of the voice coil cross-section is the same as the cross-sectional shape of the magnetic conductor central column, and the size of the voice coil cross-section is larger than the size of the cross-sectional shape of the magnetic conductor central column.

3. A multi-vertex sound-emitting module according to claim 1, characterized in that, The shape of any cross-section on the cone is consistent with the shape of the voice coil cross-section.

4. A multi-vertex sound-emitting module according to claim 1, characterized in that, The shape of the inner hole in the cone that connects to the voice coil is consistent with the shape of the voice coil's cross-section.

5. A multi-vertex sound-emitting module according to claim 1, characterized in that, The voice coil has a cross-section that is triangular, square, or pentagonal.

6. A multi-vertex sound generation module according to claim 1, characterized in that, The voice coil has a closed shape with multiple convex arcs connected in sequence.

7. A multi-vertex sound-emitting module according to claim 1, characterized in that, The voice coil has a closed shape with multiple convex acute angles connected in sequence.

8. A loudspeaker, characterized in that, Includes the multi-vertex sound module as described in any one of claims 1-7.

9. A device, characterized in that, Includes the loudspeaker as described in claim 8.

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