CN210042191U

CN210042191U - Loudspeaker vibrating reed with asymmetric waveform

Info

Publication number: CN210042191U
Application number: CN201920962536.XU
Authority: CN
Inventors: 陈元森
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-02-07
Anticipated expiration: 2029-06-25

Abstract

A loudspeaker vibrating reed with asymmetric waveform, comprising: the body, the central position of the body is penetrated with a through hole, so that the body is provided with an inner circumference and an outer circumference; an annular wavy portion formed around the through hole between the inner periphery of the body and the outer periphery of the body, the annular wavy portion having a plurality of crests and a plurality of troughs in a radial direction of the body; in the annular wave part, one side of each wave crest is provided with a supporting surface, the other side of each wave crest is provided with an elastic surface, the supporting surface and the elastic surface are respectively connected with two adjacent wave troughs, and the radial distance between the wave crest and the wave trough connected with the supporting surface is smaller than that between the wave trough and the wave trough connected with the elastic surface, so that the wave crest and the wave trough of the annular wave part have shapes with two asymmetric sides. The utility model discloses slow down loudspeaker trembler specific site and concentrate the atress and cause elastic fatigue to the whole life of extension loudspeaker trembler.

Description

Loudspeaker vibrating reed with asymmetric waveform

Technical Field

The present invention relates to a loudspeaker vibrating plate, and more particularly to a loudspeaker vibrating plate with an asymmetric waveform.

Background

The general loudspeaker comprises a bass unit, a middle-tone unit and a treble unit. These three units are responsible for different frequencies. Most loudspeakers operate on the same principle. As with a typical moving coil speaker, when current flows through the wires to the voice coil, an electromagnetic field is generated. This forces the moving coil to move within the gap due to the electromagnetic field being directed at right angles to the magnetic field of the permanent magnet on the horn. The mechanical force generated by the movement makes the paper disc attached with the voice coil generate vertical and up-and-down vibration, so that air is vibrated, audio is emitted and transmitted to human ears, the purpose of restoring sound for human listening is achieved, and the conversion of electric energy into sound energy is realized.

However, since the diaphragm (e.g., diaphragm or damper) of the speaker is connected to the voice coil, and the diaphragm mainly functions to suspend the voice coil, the structure is mostly concentric circles and the cross section is wavy. The diaphragm basically determines the sounding quality of the loudspeaker, and the diaphragm has close relation with frequency response characteristics, tone quality, directivity, sensitivity and the like; the damper functions include (a) keeping the voice coil at the right position in the magnetic gap, (b) ensuring that the vibration system reciprocates axially when the voice coil is stressed, (c) determining the resonance efficiency of the loudspeaker together with the voice coil and the vibrating diaphragm of the vibration system, and (d) preventing dust from entering the magnetic gap. Therefore, the speaker can support the voice coil by the vibrating plate, and the quality of the vibrating plate can directly affect the sound quality of the speaker.

Fig. 1 is an external perspective view of a conventional horn diaphragm 1, and as shown in fig. 1, the conventional horn diaphragm 1 (here, an elastic wave is taken as an example) generally has a center hole 2 and a wavy portion 3 between the center hole 2 and an outer peripheral edge of the horn diaphragm 1. The wave part 3 forms a plurality of wave crests and a plurality of wave troughs in the radial direction of the loudspeaker vibrating plate, and the wave forms on the two sides of the wave crest and the two sides of the wave trough are symmetrically arranged.

Such a conventional horn diaphragm 1 is generally used in a horn in which a voice coil 5 and a magnet 6 are provided at a lower portion of the device, and as shown in fig. 2, an internal structure diagram of a horn device 4 of the conventional horn diaphragm 1 is used. In this case, the voice coil 5 vibrates back and forth in the vertical direction (i.e., up and down direction), while the conventional loudspeaker vibrating reed 1 can stably support the voice coil 5 to move in the initial stage, prevent the voice coil 5 from deviating from a predetermined position, and have good vibration resistance and support capability; however, since the vibration strength of the inner portion of the conventional horn diaphragm 1 connected to the voice coil 5 is high, the outer portion thereof is gradually elastically fatigued over a long period of time, thereby deteriorating the quality of the generated sound.

Therefore, after observing the above-mentioned deletions, the present inventor believes that the loudspeaker vibrating reed structure of the existing loudspeaker still has the need of further improvement, and has produced the utility model.

SUMMERY OF THE UTILITY MODEL

The present invention provides a loudspeaker vibrating reed, which can provide a stable support for the vibration system of the loudspeaker device and prolong the service life of the loudspeaker vibrating reed.

To achieve the above object, the present invention provides a loudspeaker vibrating reed with asymmetric waveform, which comprises: a body, wherein a through hole is arranged at the center of the body in a penetrating way, so that the body is provided with an inner periphery and an outer periphery; an annular wavy portion formed around the through hole between the inner periphery of the body and the outer periphery of the body, the annular wavy portion having a plurality of crests and a plurality of troughs in a radial direction of the body; in the annular wavy part, one side of each wave crest is provided with a supporting surface, the other side of each wave crest is provided with an elastic surface, the supporting surface and the elastic surface are respectively connected with two adjacent wave troughs, and the radial distance between the wave crest and the wave trough connected with the supporting surface is smaller than that between the wave crest and the wave trough connected with the elastic surface, so that the wave crest and the wave trough of the annular wavy part have shapes with two asymmetric sides.

Preferably, the horn diaphragm with an asymmetric waveform further includes: at least one annular flat portion having a flat surface and formed between the annular wave portion and the outer periphery of the body or between the annular wave portion and the inner periphery of the body or a combination thereof.

Preferably, the height of the wave crest is greater than or less than the depth of the wave trough.

Preferably, wherein the heights of the peaks are the same as each other and the depths of the valleys are the same as each other.

Preferably, the curve radius of the wave crest is larger or smaller than the curve radius of the wave trough.

Preferably, the annular wavy portion is provided with the supporting surface at a position adjacent to the inner periphery.

Preferably, the annular wavy portion is provided with the supporting surface at a position adjacent to the outer periphery.

Preferably, the body is selected from one or a combination of polyester fiber, cotton fiber, acryl fiber, silk fiber, polyethylene naphthalate (PEN), Aramid fiber (Aramid) and bamboo fiber.

Preferably, the body is circular.

The utility model provides a loudspeaker trembler with asymmetric waveform, by making the crest and the trough has the asymmetric shape in both sides, makes the produced vibration of voice coil loudspeaker voice coil, can be faster transmit toward periphery side or interior periphery side on the radial direction of loudspeaker trembler, reduces the dwell time that the vibrational force concentrates on the specific part of loudspeaker trembler to slow down specific part and concentrate the atress and lead to elastic fatigue, with the holistic life of extension loudspeaker trembler.

Drawings

Fig. 1 is an external perspective view of a conventional horn diaphragm.

Fig. 2 is a schematic view showing an internal structure of a horn device using a conventional horn diaphragm.

Fig. 3 is an external perspective view of the first embodiment of the present invention.

Fig. 4 is a side view, partly in section, of a first embodiment of the invention.

Fig. 5 is a side view, partly in section, of a second embodiment of the invention.

Fig. 6 is a side view, partially in section, of a third embodiment of the invention.

Fig. 7 is a side view, partly in section, of a fourth embodiment of the invention.

Fig. 8A and 8B are partial cross-sectional side views of other embodiments of the present invention.

Wherein the reference numerals are as follows:

1 loudspeaker vibrating reed

2 center hole

3 wave part

4-horn device

5 Voice coil

6 magnet

100 horn diaphragm with asymmetric waveform

10 main body

11 through hole

12 inner peripheral edge

13 outer peripheral edge

20 annular wave part

21 wave crest

22 wave trough

23 bearing surface

24 elastic surface

30 annular plane part

Depth of D

Height H

L horizontal line

radius of r1 curve

radius of r2 curve

W1 radial distance

W2 radial distance

Detailed Description

Fig. 3 is an external perspective view of a first embodiment of the present invention, and fig. 4 is a partial sectional side view of the first embodiment of the present invention. The utility model discloses a have loudspeaker trembler 100 with asymmetric waveform, include:

a body 10, a through hole 11 is formed at the center of the body 10, so that the body 10 has an inner periphery 12 and an outer periphery 13. In the present embodiment, the body 10 is exemplified by a circular shape, as shown in fig. 3; however, the present invention is not limited thereto, and the body 10 may have a rectangular or polygonal shape. Specifically, the main body 10 is a cloth material formed by weaving a plurality of warp yarns and a plurality of weft yarns in a staggered manner; the warp and weft yarns of the body 10 are selected from one or a combination of polyester fibers, cotton fibers, acryl fibers, silk fibers, polyethylene naphthalate (PEN), Aramid fibers and bamboo fibers.

An annular wavy portion 20, the annular wavy portion 20 being formed between the inner periphery 12 of the body 10 and the outer periphery 13 of the body 10 around the through hole 11, the annular wavy portion 20 having a plurality of crests 21 and a plurality of troughs 22 in a radial direction of the body 10. As shown in fig. 4, in the annular wavy portion 20, each of the wave crests 21 has a supporting surface 23 on one side and a resilient surface 24 on the other side, and the supporting surface 23 and the resilient surface 24 are respectively connected to two adjacent wave troughs 22. Therefore, the two sides of the wave crest 21 and the wave trough 22 are respectively the supporting surface 23 and the elastic surface 24.

Wherein, the radial distance W1 between each peak 21 and the wave trough 22 connected to the supporting surface 23 is smaller than the radial distance W2 between each peak 21 and the wave trough 22 connected to the elastic surface 24, where the radial distances W1 and W2 refer to the distances in the radial direction of the body 10; so that the inclination of the support surface 23 is greater than that of the elastic surface 24 as shown in fig. 4. That is, each peak 21 has a different radial distance W1, W2 from the valley 22 connected to both sides thereof, so that the peaks 21 and the valleys 22 of the annular wavy portion 20 have a bilaterally asymmetrical shape.

At least one annular flat portion 30, the annular flat portion 30 having a flat surface and being formed between the annular wavy portion 20 and the outer peripheral edge 13 of the body 10 or between the annular wavy portion 20 and the inner peripheral edge 12 of the body 10 or a combination thereof. In the present embodiment, the annular flat portion 30 is exemplarily formed between the annular wavy portion 20 and the outer peripheral edge 13 of the body 10 and between the annular wavy portion 20 and the inner peripheral edge 12 of the body 10.

The annular plane portion 30 extends along the flat surface thereof to define a horizontal line L, as shown in fig. 4, the distance from the highest point of the peak 21 to the horizontal line L is defined as the height H of the peak 21, and the distance from the lowest point of the valley 22 to the horizontal line L is defined as the depth D of the valley 22.

In the present embodiment, as shown in fig. 4, the height H of the peak 21 is equal to the depth D of the valley 22; the heights H of the peaks 21 are the same as each other, and the depths D of the valleys 22 are the same as each other. In addition, in the present embodiment, the curve radius r1 of the peak 21 is equal to the curve radius r2 of the valley 22.

The invention is not limited thereto: the height H of the peak 21 may be greater or less than the depth D of the valley 22; the height H of the peaks 21 can be set as different height H for each peak 21, and the depth D of the valleys 22 can also be set as different depth D for each valley 22; the curve radius r1 of the peak 21 is the curve radius r2 which can be larger or smaller than the trough 22.

For further understanding of the structural features of the present invention, its technical means and intended advantages, reference will now be made to the use of the present invention in which it is believed that there is a further and specific understanding of the present invention as described below:

referring to fig. 3, the speaker vibrating reed 100 with asymmetric waveform of the present invention is mainly configured such that the radial distance W1 between the wave trough 22 connected to the wave crest 21 and the supporting surface 23 is smaller than the radial distance W2 between the wave trough 22 connected to the wave crest 21 and the elastic surface 24, so that the surface width of the supporting surface 23 is smaller than the surface width of the elastic surface 24, and thus the two sides of the wave crest 21 and the wave trough 22 are supported by different strengths. Specifically, the elastic surface 24 is larger than the supporting surface 23 in surface width, and is more easily deformed due to force deflection relative to the supporting surface 23, so that a connecting surface with larger elasticity can be provided on one side of the wave crest 21 and the wave trough 22 for transmitting and absorbing the vibration force to reduce the vibration force; the supporting surface 23 is less than the elastic surface 24 in surface width, and is not easily deformed due to stress relative to the elastic surface 24, and a connecting surface with relatively high fastening force is provided on the other side of the wave crest 21 and the wave trough 22, so that the elastic surface 24 deformed due to stress can be restored to a predetermined position and state.

Therefore, the utility model discloses a loudspeaker trembler 100 with asymmetric waveform can wave front reaches when trough 22 receives the vertical vibration of voice coil loudspeaker voice coil, the motion that sees through this elastic surface 24 adsorbs vertical vibration power, utilizes this holding surface 23 to apply reaction force simultaneously and offsets remaining vibrational force to avoid this loudspeaker trembler to warp because of receiving to shake for a long time. In contrast, since the conventional horn vibrating reed 1 is configured as a symmetrical waveform, the widths of the connecting surfaces on both sides of the peak 21 and the valley 22 are equal, and the connecting surfaces on both sides cannot provide different and complementary characteristics.

In addition, in the first embodiment, as shown in fig. 4, the position of the annular wavy portion 20 adjacent to the outer peripheral edge 13 is exemplified by providing the supporting surface 23 so that the body 10 of the horn vibrating piece 100 having the asymmetric waveform receives vibration to transmit vibration force to the outer peripheral side, and at this time, the supporting surface 23 provides a reaction force to restore the horn vibrating piece 100 having the asymmetric waveform to a predetermined position.

Fig. 5 is a side view, partly in section, of a second embodiment of the invention. The second embodiment is different from the first embodiment in that the height H of the peak 21 is different from the depth D of the valley 22, whereby the second embodiment can adjust the range of the elastic movement of the horn diaphragm 100 having an asymmetric waveform of the present invention in the upward or downward direction. Fig. 5 illustrates that the height H of the peak 21 is greater than the depth D of the valley 22, but the present invention is not limited thereto.

Fig. 6 is a side view, partially in section, of a third embodiment of the invention. The third embodiment is different from the second embodiment in that the radius of curvature r1 of the peak 21 is different from the radius of curvature r2 of the valley 22, whereby the third embodiment can adjust the vibration force absorbed in the upward or downward direction of the horn vibration piece 100 having an asymmetric waveform of the present invention. Generally, a larger radius curve has a superior shock absorbing capability. Fig. 6 exemplifies that the curve radius r1 of the peak 21 is larger than the curve radius r2 of the valley 22, and therefore, in this example, the horn vibration piece 100 having the asymmetric waveform has a better suction effect against the vibration force in the upward direction than against the vibration force in the downward direction.

Fig. 7 is a side view, partly in section, of a fourth embodiment of the invention. The fourth embodiment differs from the first embodiment in that the annular bead 20 is provided with the support surface 23 adjacent to the inner circumferential edge 12. Thereby, the body 10 of the horn vibrating reed 100 having the asymmetric waveform is vibrated to transmit the vibration force to the inner peripheral side, and at this time, the support surface 23 provides a reaction force to return the voice coil to a predetermined position.

Fig. 8A and 8B are partial cross-sectional side views of other embodiments of the present invention, here exemplified by the position of the annular bead 20 adjacent to the inner circumferential edge 12, where the support surface 23 is provided. In the embodiment of fig. 8A, the radial distance W1 of the wave trough 22 where the wave crest 21 and its supporting surface 23 are connected is 0, so that the supporting surface 23 becomes a vertical surface. In the embodiment of fig. 8B, the radial distance W1 of the wave trough 22 where the wave crest 21 and its supporting surface 23 are connected is 0, so that the supporting surface 23 becomes a vertical surface. In the embodiment of fig. 8B, the peak 21 extends radially beyond its adjacent one of the valleys 22 such that the radial distance W1 of the valley 22 to which the peak 21 is connected to its supporting surface 23 partially overlaps the radial distance W2 of the valley 22 to which the peak 21 is connected to its resilient surface 24.

The features of the present invention and the expected effects achieved by the same are stated below:

the utility model discloses a loudspeaker trembler 100 with asymmetric waveform, it can give the stable support of vibration system of loudspeaker device to prolong the life of loudspeaker trembler.

Therefore, the utility model discloses have following implementation efficiency and technical efficiency:

one of which, the utility model provides a loudspeaker trembler 100 with asymmetric waveform, by making crest 21 and trough 22 has the asymmetric shape in both sides, makes the produced vibration of voice coil loudspeaker voice coil, can be faster pass toward periphery side or interior periphery side on loudspeaker trembler 100's radial direction, reduces the dwell time that the vibrational force concentrates on the specific part of loudspeaker trembler 100 to slow down specific part and concentrate the atress and make elastic fatigue, with the holistic life of extension loudspeaker trembler. In addition, even if the annular wavy portion 20 of the horn vibrating reed 100 is temporarily deformed by vibration, the supporting surface 23 returns the annular wavy portion 20 to a predetermined position and shape.

Secondly, the present invention provides a loudspeaker vibrating reed 100 with asymmetric waveform, which can strengthen the fixation of these positions by providing the supporting surface 23 at the position of the outer peripheral edge 13 or the inner peripheral edge 12, so that the loudspeaker vibrating reed 100 with asymmetric waveform and the connected voice coil and external terminals thereof can be continuously maintained at the predetermined position without being deviated by stress.

Thirdly, the present invention provides a horn vibration piece 100 with asymmetric waveform, which can be applied to the horn inner structure set in various ways and give stable support to the vibration system. For example, the utility model provides a loudspeaker trembler 100 with asymmetric waveform except being applied to the loudspeaker device 4 shown in fig. 2, also can be applied to the loudspeaker device that voice coil loudspeaker voice coil and magnet set up at the lateral part of loudspeaker device, and the voice coil loudspeaker voice coil reciprocating vibration between loudspeaker device's both sides direction, at this moment, compare in current loudspeaker trembler 1, the utility model provides a loudspeaker trembler 100 with asymmetric waveform is because of possessing this holding surface 23, and the action of gravity of voice coil loudspeaker voice coil or external terminal can be resisted to this annular wave portion 20, avoids the utility model discloses a loudspeaker trembler 100 with asymmetric waveform is because of the action of gravity pressurized and is out of shape along the line of this annular wave portion 20.

To sum up, the utility model discloses have its splendid progress practicality in like product, look over the technical data about this type of structure at home and abroad simultaneously, also do not discover to have the same structure to exist earlier in the literature, consequently, the utility model discloses the reality has possessed novel patent essential, and the law of the following law proposes the application.

However, the above description is only a preferred and practical embodiment of the present invention, and therefore, all the modifications of the equivalent structure to the scope of the present invention and the claims should be included in the scope of the present invention.

Claims

1. A horn diaphragm having an asymmetric waveform, the horn diaphragm comprising:

a body, wherein a through hole is arranged at the center of the body in a penetrating way, so that the body is provided with an inner periphery and an outer periphery;

an annular wavy portion formed around the through hole between the inner periphery of the body and the outer periphery of the body, the annular wavy portion having a plurality of crests and a plurality of troughs in a radial direction of the body;

in the annular wavy part, one side of each wave crest is provided with a supporting surface, the other side of each wave crest is provided with an elastic surface, the supporting surface and the elastic surface are respectively connected with two adjacent wave troughs, and the radial distance between the wave crest and the wave trough connected with the supporting surface is smaller than that between the wave crest and the wave trough connected with the elastic surface, so that the wave crest and the wave trough of the annular wavy part have shapes with two asymmetric sides.

2. The horn diaphragm of claim 1 further comprising:

at least one annular flat portion having a flat surface and formed between the annular wave portion and the outer periphery of the body or between the annular wave portion and the inner periphery of the body or a combination thereof.

3. The horn diaphragm of claim 2 wherein the height of the peak is greater or less than the depth of the valley.

4. The horn diaphragm of claim 2, wherein the heights of the peaks are the same as each other and the depths of the valleys are the same as each other.

5. The horn diaphragm of claim 1 wherein the peak has a radius of curvature greater than or less than the radius of curvature of the valley.

6. The horn diaphragm of claim 1 wherein the annular bead is provided with the seating surface adjacent the inner periphery.

7. The horn diaphragm of claim 1 wherein the annular bead is provided with the seating surface adjacent the outer periphery.

8. The horn oscillator plate of claim 1, wherein the body is selected from one or a combination of polyester fiber, cotton fiber, acryl fiber, silk fiber, polyethylene naphthalate (PEN), Aramid fiber (Aramid) and bamboo fiber.

9. The horn diaphragm of claim 1 wherein the body is circular.