Multi-vertex sound production module, loudspeaker and equipment

Abstract

The multi-vertex sounding module comprises a voice coil, a magnetic circuit assembly, a voice cone and a cone frame, the number of vertexes on the cross section of the voice coil is equal to the number of the vertexes on the cross section of a magnetic conduction center column and equal to the number of the vertexes on the cross section of an inner hole of a magnetizer, and the number of the vertexes on the cross section of the magnetic conduction center column is equal to the number of the vertexes on the cross section of the magnetizer. The number of the vertexes on the voice coil is larger than or equal to three, 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, and the shape of the cross section of the voice coil is the same as that of the cross section of the magnetic conducting middle column. 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, distortion is reduced, the power and durability of the loudspeaker are improved, and therefore the grade of equipment using the loudspeaker is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and in particular to a special-shaped sound-emitting unit, a loudspeaker and a device. Background Art

[0002] The voice coil, magnetic circuit and cone are important components of the speaker sound unit. The three interact with each other. For example, in a dynamic speaker, the current-carrying conductor is subjected to force in the magnetic field. The changing current passes through the coil, generating a changing magnetic field, which makes the speaker's diaphragm vibrate and produce sound. The core of its electroacoustic conversion is in the voice coil. In the current speaker structure, the voice coil is usually a simple ring structure. This type of structure voice coil will deform under high frequency and high power, resulting in distortion and failure, affecting the use effect. Summary of the invention

[0003] The present invention aims to avoid the deficiencies of the prior art and thus provide a multi-vertex sound module, a loudspeaker and a device with high strength and reduced distortion.

[0004] The present invention solves the technical problem by adopting the following technical scheme: a multi-vertex sound-generating module, comprising a voice coil, a magnetic circuit assembly, a sound basin and a basin frame, wherein the sound basin is fixed on the basin frame, the magnetic circuit assembly comprises a magnetic conductive middle column, a magnet and an upper magnetic conductive body, the upper magnetic conductive body is arranged on one magnetic pole of the magnet and conducts the magnetic circuit, a magnetic gap is formed between the upper magnetic conductive body and the magnetic conductive middle column, the magnetic conductive middle column is connected to the other magnetic pole of the magnet and conducts the magnetic circuit, the voice coil is installed in the magnetic gap, a conductor 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 magnetic conductive middle column, and is equal to the number of vertices on the cross section of the inner hole of the upper magnetic conductive body, and the number of vertices on the voice coil is greater than or equal to three;

[0005] When the number of vertices is an odd number, the intersection point of the straight lines from each vertex in the voice coil to the midpoint of the line segment between the two opposite vertices is taken as the center point, the distances from the vertices on the voice coil and the magnetic circuit assembly to the center point are respectively 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 an even number, the intersection point of the straight lines from each vertex in the voice coil to the opposite vertex is taken as the center point, the distances from the vertices on the voice coil and the 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 shape of the cross section 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 section of the inner hole of the upper magnetic conductor; the shape of the voice coil cross section is the same as the shape of the cross section of the magnetic center column, and the size of the voice coil cross section is larger than the size of the cross section of the magnetic center column.

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

[0009] In several embodiments, the shape of the inner hole in the cone connected to the voice coil is consistent with the shape of the cross section of the voice coil.

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

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

[0012] In several embodiments, the cross section of the voice coil is a closed shape with multiple outwardly convex acute angles connected in sequence.

[0013] And, a speaker having the multi-vertex sound-emitting module.

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

[0015] The present invention has the following beneficial effects:

[0016] The present invention greatly enhances the strength of the driving voice coil, improves the sound quality and reduces distortion, increases the power and durability of the speaker, and thus improves the level of equipment using the speaker, through a multi-vertex voice coil, magnetic circuit and sound basin structure.

[0017] The present invention enhances the strength of the sound basin through a multi-vertex structure, reduces split vibration and distortion, improves distortion performance indicators, makes tiny dynamic responses in electrical signals more rapid, can capture subtle emotions and dynamic voltages in music, and makes the expression of music richer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

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

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

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

[0022] Figure 4 The top view structure of the voice coil, the sound cone and the magnetic circuit in the second embodiment is schematically shown;

[0023] Figure 5 Schematically shows Figure 3 A top view of the midrange coil and magnetic circuit;

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

[0025] Figure 7 Schematically shows Figure 5 The amplification structure of the midrange coil;

[0026] Figure 8 The top view structure of the voice coil in Embodiment 4 is schematically shown. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below. To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

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

[0030] like Figure 1As shown, the multi-vertex sound module in the present invention includes a voice coil 10, a magnetic circuit assembly 20, a sound cone 30 and a basin frame 40, the sound cone 30 is fixed on the basin frame 40, the magnetic circuit assembly 20 includes a magnetic conductive middle column 21, a magnet 23 and an upper magnetic conductive 22, the upper magnetic conductive 22 is arranged on one magnetic pole of the magnet 23 and conducts the magnetic circuit, a magnetic gap 24 is formed between the upper magnetic conductive 22 and the magnetic conductive middle column 21, the magnetic conductive middle 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, and 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 center column 21, and is equal to the number of vertices on the cross section of the inner hole of the upper magnetic conductor 22. The number of vertices on the voice coil 10 is greater than or equal to three. For ease of understanding, the vertex 1a on the voice coil 10, the vertex 1b on the magnetic center column 21, and the vertex 1c on the upper magnetic conductor 22 are set here.

[0031] When the number of vertices is an odd number, the intersection point 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 is taken as the center point, and the distances from the vertices on the voice coil 10 and the magnetic circuit assembly 20 to the center point are respectively 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 is equal, and the distance from each vertex 1c to the center point is equal.

[0032] When the number of vertices is an even number, the intersection point of the straight lines from each vertex 1a in the voice coil 10 to the opposite vertex is taken as the center point, the distances from the vertices on the voice coil 10 and the magnetic circuit assembly 20 to the center point are respectively 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, that is, the distance from each vertex 1a to the center point is equal, the distance from each vertex 1b to the center 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 shape of the cross section of the inner hole of the upper magnet 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 magnet 22; the shape of the cross section of the voice coil 10 is the same as the shape of the cross section of the magnetic center column 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 center column 21.

[0034] The production method of the present invention is roughly as follows: 1. making a voice coil multi-vertex mold; 2. winding a multi-vertex voice coil frame on the multi-vertex mold; 3. winding a conductive coil on the multi-vertex voice coil frame, and during winding, pressing the conductive wire against the valley point on the multi-vertex voice coil frame along the winding direction of the conductive wire; 4. assembling the multi-vertex voice coil with the wound wire with a magnetic circuit and a sound basin.

[0035] And, the corresponding loudspeaker having the above-mentioned multi-vertex sound-emitting module, and the device having the loudspeaker, all fall within the protection scope of this application.

[0036] Example 1

[0037] like Figure 2-Figure 3 As shown, in this embodiment, the corresponding number of vertices is an odd number. Specifically, the cross-section of the voice coil 10 is a triangle, or a square, etc. The inner holes of the magnetic center column 21 and the upper magnetic conductor 22 are also triangular structures, and the shape of the inner hole connected to the voice coil 10 in the sound cone 30 is consistent with the shape of the cross-section of the voice coil 10 and is also a triangle. Of course, the shape of any cross-section on the sound cone 30 can also be consistent with the shape of the cross-section of the voice coil 10, that is, the sound cone can be roughly a triangular pyramid structure.

[0038] Example 2

[0039] like Figure 4-Figure 5 As shown, in this embodiment, the number of corresponding vertices is an even number, and the cross-section of the voice coil 10 is a closed shape in which multiple convex arcs are connected in sequence, such as a multi-petal plum blossom structure, and the inner hole shape of the magnetic center column 21 and the upper magnetic conductor 22 and the shape of the sound basin 30 are the same.

[0040] and Figure 3 The upper magnetic conductor 22 in the figure is indicated by a dotted line, indicating that it is shielded by the sound basin 30 when viewed from above.

[0041] Example 3

[0042] like Figure 6-Figure 7 As shown, in this embodiment, the number of corresponding vertices is an odd number, and the cross section of the voice coil 10 is a pentagon, and the inner hole shapes of the magnetic center column 21 and the upper magnetic conductor 22 and the shape of the sound basin 30 are the same.

[0043] Example 4

[0044] like Figure 8 As shown, in this embodiment, the number of corresponding vertices is an even number, and the cross-section of the voice coil 10 is a closed shape with multiple outwardly protruding acute angles connected in sequence, and the overall shape is symmetrical, roughly forming an octagonal star structure, and the inner hole shape of the magnetic center column 21 and the upper magnetic conductor 22 and the shape of the sound basin 30 are the same.

[0045] The present invention describes preferred embodiments, including the best mode of carrying out the invention known to the inventors. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors anticipate that the skilled artisan may use such variations as appropriate, and the inventors indicate that the present invention may be implemented in other ways than those specifically described herein. Therefore, the present invention includes all modifications encompassed by the spirit and scope of the invention as defined by the claims. Furthermore, unless otherwise stated or clearly contradictory in context, the present invention includes any of the above-mentioned factors and all possible variations thereof.

Claims

1. A multi-vertex sound module, characterized in that: The invention comprises a voice coil, a magnetic circuit assembly, a sound basin and a basin frame, wherein the sound basin is fixed on the basin frame, the magnetic circuit assembly comprises a magnetic conductive middle column, a magnet and an upper magnetic conductive body, the upper magnetic conductive body is arranged on one magnetic pole of the magnet and conducts the magnetic circuit, a magnetic gap is formed between the upper magnetic conductive body and the magnetic conductive middle column, the magnetic conductive middle column is connected to the other magnetic pole of the magnet and conducts the magnetic circuit, the voice coil is installed in the magnetic gap, a conductor 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 magnetic conductive middle column, and is equal to the number of vertices on the cross section of the inner hole of the upper magnetic conductive body, and the number of vertices on the voice coil is greater than or equal to three; When the number of vertices is an odd number, the intersection point of the straight lines from each vertex in the voice coil to the midpoint of the line segment between the two opposite vertices is taken as the center point, the distances from the vertices on the voice coil and the magnetic circuit assembly to the center point are respectively 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 an even number, the intersection point of the straight lines from each vertex in the voice coil to the opposite vertex is taken as the center point, the distances from the vertices on the voice coil and the 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. A multi-vertex sound module according to claim 1, characterized in that: The shape of the voice coil cross section is the same as the cross section 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 section of the inner hole of the upper magnetic conductor; the shape of the voice coil cross section is the same as the cross section shape of the magnetic center column, and the size of the voice coil cross section is larger than the size of the cross section of the magnetic center column.

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

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

5. The multi-vertex sound module according to claim 1, characterized in that: The cross section of the voice coil is one of a triangle, a square and a pentagon.

6. The multi-vertex sound module according to claim 1, characterized in that: The cross section of the voice coil is a closed shape in which a plurality of convex circular arcs are connected in sequence.

7. The multi-vertex sound module according to claim 1, characterized in that: The cross section of the voice coil is a closed shape with a plurality of outwardly convex acute angles connected in sequence.

8. A speaker, characterized in that: It comprises a multi-vertex sounding module as described in any one of claims 1-7.

9. A device, characterized in that: Comprising the speaker as claimed in claim 9.

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