TWM548940U - Sound production device of loudspeaker - Google Patents

Description

Speaker sounding mechanism

This creation is about the sounding structure used for speakers, especially the sounding mechanism of a speaker.

The speaker sounding structure of the prior art mainly comprises a diaphragm comprising a centrally located sound film, an annular suspension surrounding the outer side of the sound film, and an annular support piece surrounding the outer side of the annular suspension. A voice coil is connected to the lower side of the diaphragm, and a coil that can conduct current is wound around the voice coil. The lower section of the voice coil is surrounded by a magnetic magnetic element. Wherein the outermost radius of the magnetic element is smaller than the outer side radius of the sound film. When the coil is energized, it can interact with the magnetic field of the magnetic element so that the voice coil can interact with the magnetic element, and the voice coil pushes the diaphragm, causing the external air to vibrate and make a sound. Therefore, it is possible to apply a varying current to cause the diaphragm to generate vibrations of different frequencies and to emit different sounds.

However, the speaker of the above-mentioned prior art, because the outermost radius of the magnetic component is smaller than the outer side radius of the sound film, when the speaker is required to make a large sound, it is necessary to use full power to push the diaphragm to be able to emit. Larger sound, However, this excessive power will cause the sound of the diaphragm to be distorted, so the overall sound quality cannot be maintained. Furthermore, since the conventional speaker has a small magnetic component, the stroke distance is short, which is disadvantageous to the response of the bass, and therefore does not emit a good quality bass.

Therefore, the present invention hopes to propose a new speaker sounding mechanism to solve the above-mentioned prior art defects.

Therefore, the purpose of the present invention is to solve the above-mentioned problems in the prior art. In the present invention, a sounding mechanism for a speaker is proposed, in which the magnetic component used has a large radius, so the driving force is also large. Therefore, even if a large sound is needed during use, the sounding structure of the present case can achieve the purpose of emitting a large sound without using full power, because the whole sound quality can be maintained because the full power is not achieved. In addition, since the magnetic component is large, the present invention provides a long stroke distance, so that the response of the bass can be better without affecting the sound quality of the bass.

In order to achieve the above object, a sounding mechanism for a speaker is provided in the present invention, comprising: a vibrating membrane having a substantially circular flaky structure; the vibrating membrane comprising a centrally located acoustic membrane, located outside the acoustic membrane and associated with the acoustic membrane An annular hanging edge joined to the outer edge, and an annular supporting piece positioned outside the annular hanging edge and combined with the outer edge of the annular hanging edge; a voice coil is located below the diaphragm and includes a sound tube And a coil; the sound tube is in a hollow cylindrical shape, the upper end of which is connected to the junction of the annular suspension of the diaphragm and the sound film, so the inside of the diaphragm The sound film on the side is located above the hollow position of the sound tube; the coil is wound around the outer side of the sound tube; the coil can conduct current; a magnetic component has an upper end deep inside the voice coil, the lower end Extending outward and bending upward; wherein the sound turns on the coil of the voice coil in the form of current, and the inside of the coil induces a magnetic field, and the magnetic field passes through the magnetic component; the current generated by the sound is a fluctuating current, so that the magnetic The magnetic field of the moving element also undergoes a repetitive change, so that the voice coil interacts with the magnetic moving element, so the diaphragm above the voice coil also changes abruptly to emit an acoustic sound; wherein the vibrating membrane and the voice coil The magnetic moving element is in the form of a coaxial line; wherein the outermost radius of the magnetic moving element is larger than the annular hanging edge of the vibrating film with respect to the vibrating film, the voice coil, and the coaxial line of the magnetic moving element The radius of the edge where the annular support sheet is joined.

The features of the present invention and its advantages can be further understood from the description below, and please refer to the attached drawings when reading.

10‧‧‧Vibration membrane

11‧‧‧ sound film

12‧‧‧Circular hanging edge

13‧‧‧Ring support piece

20‧‧‧ voice coil

21‧‧ ‧ sound tube

22‧‧‧ coil

30‧‧‧Magnetic components

31‧‧‧ Inner ring yoke

32‧‧‧Outer ring magnetic flux

33‧‧‧Ring magnet

40‧‧‧Circular elastic wave

50‧‧‧Brick frame

55‧‧‧Upper support ring

311‧‧‧Expanded parts

321‧‧‧ gap

Figure 1 shows a perspective view of the component combination of the present case.

Figure 2 shows a view of Figure 1 from the side of the bottom.

Figure 3 shows an exploded view of the components of the present case.

Figure 4 shows the top view of Figure 1.

Figure 5 is a cross-sectional view taken along line A-A of Figure 4.

In view of the structural composition of the case, and the functions and advantages that can be produced, in conjunction with the drawings, a preferred embodiment of the present invention is described in detail below.

Referring to FIG. 1 to FIG. 5, the sounding mechanism of the speaker of the present invention is shown, which includes the following components:

A vibrating membrane 10 having a substantially circular flaky structure. As shown in FIGS. 1 and 4, the vibrating membrane 10 includes a sound film 11 located at the center, an annular hanging edge 12 located outside the sound film 11 and joined to the outer edge of the sound film 11, and being positioned in the ring shape. An annular support piece 13 on the outer side of the suspension 12 and joined to the outer edge of the annular suspension 12.

A voice coil 20 is located below the diaphragm 10 and includes a sound cylinder 21 and a coil 22. The sound cylinder 21 has a hollow cylindrical shape, and its upper end is connected to the junction of the annular suspension 12 of the diaphragm 10 and the sound film 11 (as shown in FIG. 5). The coil 22 is wound around the outer side of the sound cylinder 21 (as shown in Fig. 3). The coil 22 can conduct current.

A magnetic component 30, as shown in Figures 2 and 5, comprises:

An inner annular yoke 31 is disposed under the vibrating membrane 10 and has a cylindrical structure. The lower portion of the voice coil 20 surrounds the outer side of the upper end of the inner annular yoke 31, and the voice coil 20 does not contact the inner portion. The annular yoke 31. The bottom of the inner annular yoke 31 extends outward to form an enlarged portion 311. The inner annular yoke 31 has a structure that can induce a magnetic field and conduct magnetism. In the present case, the annular structure of the inner annular yoke 31 includes a circular shape, a regular polygon, or an approximately regular polygon.

An outer annular magnetically permeable member 32 is located below the vibrating membrane 10 and surrounds the outer portion of the coil 22 without contacting the coil 22. The The outer annular magnetically permeable member 32 is located above the enlarged portion 311 and forms a gap with the enlarged portion 311. The outer annular magnetic conducting member 32 is a structure capable of inducing a magnetic field and conducting magnetic waves.

The upper surface of the inner annular yoke 31 is higher than the upper surface of the outer annular magnetic conductor 32. Therefore, it is possible to produce a linear stroke of the long voice coil 20, a large thrust factor, and a low-frequency nonlinear distortion.

A ring magnet 33 is located below the outer annular magnetically permeable member 32 and surrounds the outer annular magnetically permeable member 32 and the outer side of the voice coil 20, and the annular magnet 33 does not contact the voice coil 20. The annular magnet 33 is interposed between the enlarged portion 311 of the inner annular yoke 31 and the outer annular magnetically permeable member 32, and simultaneously connects the inner annular yoke 31 and the outer annular guide. The magnetic member 32 is such that the inner annular yoke 31 and the outer annular magnetic member 32 are simultaneously magnetic.

The vibrating membrane 10, the voice coil 20, and the magnetic element 30 have a coaxial line structure.

The feature of the present invention is that the outermost radius of the outer annular magnetic conductive member 32 is larger than the annular suspension 12 of the vibrating membrane 10 with respect to the coaxial line of the vibrating membrane 10, the voice coil 20, and the magnetic moving element 30. The radius of the edge where the annular support piece 13 is joined is as shown in FIG.

An annular elastic wave 40 is located between the diaphragm 10 and the outer annular magnetic member 32. The ring-shaped elastic wave 40 surrounds the outer side of the voice coil 20, and the voice coil 20 It is slidably attached to the inner edge of the annular elastic wave 40. The annular elastic wave 40 may have a different sectional shape such as a rectangular shape or a wave shape, and is not limited to those shown in the drawings.

A basin frame 50 has a hollow structure and is wrapped around the diaphragm 10, the voice coil 20, and the outer side of the magnetic element 30. The upper end of the frame outer frame 50 extends inwardly to form an upper support ring 55 (shown in Figure 3). At the time of assembly, as shown in FIG. 5, the annular support piece 13 on the outer side of the diaphragm 10 is fixedly mounted above the upper support ring 55, so that the annular support piece 13 is less likely to vibrate.

The outer edge of the outer annular magnetic member 32 may have a notch 321 to facilitate riveting the frame outer frame 50 and the outer annular magnetic member 32 together.

The axial height difference between the highest point of the annular suspension 12 and the bottom surface of the inner annular yoke 31 is less than half of the maximum outer diameter of the frame outer frame 50. Therefore, a higher thrust factor can be generated to effectively push the voice coil 20, so that it can withstand a large power, and the sound quality can be reduced.

The maximum inner diameter of the voice coil 20 is greater than half of the maximum outer diameter of the frame outer frame 50. The maximum outer diameter of the annular elastic wave 40 is approximately equal to the inner diameter of the frame outer frame 50, and the maximum outer diameter of the annular elastic wave 40 is greater than the maximum outer diameter of the annular suspension 12. Therefore, a higher sound pressure can be generated, and the resonance frequency can be lowered, and the generated sound is close to the original sound, reducing harmonic distortion.

At the time of installation, as shown in FIG. 5, the upper end of the sound cylinder 21 is fixed to the junction of the annular hanging edge 12 of the diaphragm 10 and the sound film 11. Therefore, the sound film 11 on the inner side of the diaphragm 10 is positioned above the hollow position of the sound cylinder 21. The vibration The annular support piece 13 on the outer side of the movable film 10 is fixedly mounted above the upper support ring 55, so that the annular support piece 13 is less likely to vibrate. Therefore, the annular suspension 12 is suspended between the sound cylinder 21 and the annular support piece 13 in a suspended manner. The cross section of the sound film 11 has an arc-shaped structure that is recessed downward, and the annular hanging edge 12 has an arc-shaped structure that is recessed upward.

The advantage of this case is that the magnetic component used has a large radius, so the driving force is also large. Therefore, even if a large sound is needed during use, the sounding structure of the present case can achieve the purpose of emitting a large sound without using full power, because the whole sound quality can be maintained because the full power is not achieved. In addition, since the magnetic component is large, the present invention provides a long stroke distance, so that the response of the bass can be better without affecting the sound quality of the bass.

In summary, the humanized design of this case is quite in line with actual needs. The specific improvement of the existing defects is obviously a breakthrough improvement advantage compared with the prior art, and it has an improvement in efficacy and is not easy to achieve. The case has not been disclosed or disclosed in domestic and foreign literature and market, and has complied with the provisions of the Patent Law.

The detailed description above is a detailed description of one of the possible embodiments of the present invention, and the embodiment is not intended to limit the scope of the patents, and the equivalent implementations or modifications that are not included in the spirit of the present invention should be included in The patent scope of this case.

10‧‧‧Vibration membrane

11‧‧‧ sound film

12‧‧‧Circular hanging edge

13‧‧‧Ring support piece

31‧‧‧ Inner ring yoke

33‧‧‧Ring magnet

50‧‧‧Brick frame

Claims (11)

A sound emitting mechanism for a speaker, comprising: a vibrating membrane having a substantially circular flake-like structure; the vibrating membrane comprising a centrally located acoustic membrane, an annular suspension edge located outside the acoustic membrane and combined with an outer edge of the acoustic membrane And an annular support piece positioned outside the annular suspension and combined with the outer edge of the annular suspension; a voice coil is located below the diaphragm and includes a sound tube and a coil; the sound tube is a hollow cylindrical shape, the upper end of which is connected to the junction of the annular suspension of the diaphragm and the sound film, so that the sound film inside the diaphragm is tied above the hollow position of the sound cylinder; The coil is wound around the outer side of the sound tube; the coil can conduct current; a magnetic component has an upper end deep inside the voice coil, and the lower end extends outward and then bends upward; wherein the voice turns on the voice coil in the form of current The coil, and the inside of the coil induces a magnetic field, the magnetic field passes through the magnetic component; the current generated by the sound is a fluctuating current, so that the magnetic field of the magnetic component also undergoes a repetitive change, so that the voice coil is The magnetomon An interaction occurs, so that the diaphragm above the voice coil also changes abruptly to emit an acoustic sound; wherein the diaphragm, the voice coil, and the magnetic component are in a coaxial line structure; wherein the diaphragm is opposite to the diaphragm a coaxial line of the magnetic element, wherein an outermost radius of the magnetic element is greater than a radius of an edge of the annular suspension of the diaphragm and the annular support piece. The sounding mechanism of the speaker as described in claim 1 of the patent scope, The magnetic moving element comprises: an inner annular yoke, located under the vibrating membrane, having a cylindrical structure, wherein a lower portion of the voice coil surrounds an outer side of the upper end of the inner annular yoke, and the voice coil is not in contact The inner annular yoke; wherein the bottom of the inner annular yoke extends outward to form an enlarged portion; the inner annular yoke is a structure capable of inducing magnetic field and magnetic conduction; an outer annular magnetic member is located at the vibration a film is wound around the outside of the coil and does not contact the coil; the outer annular magnetic conductive member is located above the enlarged portion, and a gap is formed with the enlarged portion; the outer annular magnetic conductive member is a structure capable of sensing a magnetic field and a magnetic field; a ring magnet is located below the outer annular magnetic conductive member, surrounding the outer annular magnetic conductive member and the outer side of the voice coil, and the annular magnet does not contact the sound a ring magnet; the annular magnet is interposed between the enlarged portion of the inner annular yoke and the outer annular magnetic conductive member, and simultaneously connects the inner annular yoke and the outer annular magnetic conductive member, The inner annular yoke and the outer annular magnetic conductive member are simultaneously magnetic; wherein the magnetic element The outermost radius of the outer annular member is greater than the permeability of the diaphragm of the annular suspension edge radius at the edge of binding with the annular support plate. The sounding mechanism of the speaker according to claim 2, further comprising an annular elastic wave between the vibration film and the outer annular magnetic conductive member; the annular elastic wave system surrounds the outer side of the voice coil The voice coil is slidably attached to the inner edge of the annular elastic wave. The sounding mechanism of the speaker as described in item 3 of the patent application is still The utility model comprises a frame outer frame, which is hollow and covers the vibration film, the voice coil and the outer side of the magnetic component; the upper end of the frame outer frame extends inward to form an upper support ring; The annular support piece on the outer side of the diaphragm is fixedly mounted above the upper support ring, so that the annular support piece is not easy to vibrate; therefore, the annular suspension is erected on the sound tube and the ring in a floating manner. Between the support pieces. The sounding mechanism of the speaker according to claim 1 or 2, wherein the cross section of the sound film exhibits an arcuate structure recessed downward, and the annular hanging edge exhibits an upwardly concave curved structure. The sounding mechanism of the speaker according to claim 2, wherein the annular structure of the inner annular yoke is one of a circular shape, a regular polygon, or an approximately regular polygon. The sounding mechanism of the speaker according to the second aspect of the invention, wherein the upper surface of the inner annular yoke is higher than the upper surface of the outer annular magnetic member. The sounding mechanism of the speaker according to the fourth aspect of the invention, wherein the outer edge of the outer annular magnetic member has a notch to facilitate riveting the frame outer frame and the outer annular magnetic member. The sounding mechanism of the speaker according to claim 4, wherein an axial height difference between a highest point of the annular hanging edge and a bottom surface of the inner annular yoke is smaller than a maximum outer diameter of the outer frame of the basin frame. half. The sounding mechanism of the speaker according to claim 4, wherein the maximum inner diameter of the voice coil is greater than half of the maximum outer diameter of the frame of the basin. The sounding mechanism of the speaker according to claim 4, wherein the maximum outer diameter of the annular elastic wave is approximately equal to the inner diameter of the outer frame of the basin frame, and the maximum outer diameter of the annular elastic wave is larger than the annular shape. The maximum outer diameter of the overhang.