plate-like elastic wave

Abstract

The present application provides a plate-shaped elastic wave, including at least two vibration balance parts and at least one positioning part. The at least one positioning part is arranged between the vibration balance parts, separating the vibration balance parts, and the center of which is used to fix one end of a voice coil. Thus, when the voice coil reciprocates along the axial direction, because the center of the positioning part can provide good fixing effect for the voice coil, the voice coil will not shake. On the other hand, because the positioning part separates the vibration balance parts, the vibrations of the vibration balance parts will not interfere with each other, achieving the effect of vibration balance. Based on the above two points, the plate-shaped elastic wave can ensure that the sound quality output by the thin speaker maintains a certain quality.

Description

TECHNICAL FIELD

[0001] The present application relates to a damper, in particular to a plate-shaped damper used in a thin speaker. BACKGROUND

[0002] A speaker is a device that produces sound by using the principle of the reaction force of a fixed magnetic field to move another magnetic field in the opposite direction (i.e., opposite poles attract, and like poles repel). In further detail, the power amplifier sends power alternating current through a wire to a voice coil to change the polarity of the magnetic field, so that the voice coil generates a reaction force with respect to the fixed sector generated by the magnetic return device. The positive pulse of the voice coil drives the diaphragm to produce outward movement, and the negative pulse of the voice coil drives the diaphragm to produce inward movement. When the voice coil pushes the diaphragm to reciprocate, the diaphragm pushes the air, and the air pressure changes to form a sound wave. The damper is responsible for keeping the voice coil in the correct position in the gap of the magnetic return device, ensuring that the voice coil reciprocates along the axial direction when it is under force.

[0003] Since the thin speaker has a relatively small volume, the internal components of the thin speaker have a small volume, and the center of the damper does not have enough area to open a central hole. In addition, the voice coil has a sheet structure, so the voice coil cannot be positioned at the center of the damper. When the voice coil reciprocates along the axial direction, the voice coil will slightly sway, affecting the sound quality output by the thin speaker.

[0004] Furthermore, the shape of the waves of the damper is continuous without interruption, causing the vibrations of the waves on both sides of the voice coil to interfere with each other, affecting the sound quality output by the thin speaker.

[0005] In addition, the overall hardness of the damper is the same, the wave height of all the waves is the same, and the dried resin is relatively hard and has poor elasticity, resulting in the disadvantages of more noise, difficulty in presenting low-frequency channels, poor load rebound ability, and poor sound quality. SUMMARY

[0006] The main purpose of the present application is to provide a plate-shaped damper that can provide good fixing effect for the voice coil and achieve the effect of vibration balance.

[0007] In order to achieve the above-mentioned purpose, the present application provides a plate-shaped damper, comprising at least two vibration balance parts and at least one positioning part. The at least one positioning part is arranged between the vibration balance parts to separate the vibration balance parts, and the center thereof is used to fix one end of a voice coil.

[0008] The effect of the present application is that when the voice coil reciprocates along the axial direction, the voice coil will not shake because the center of the positioning part can provide a good fixing effect for the voice coil. On the other hand, because the positioning part separates the vibration balance parts, the vibrations of the vibration balance parts will not interfere with each other, achieving the effect of vibration balance. Based on the above two points, the plate-shaped reed can ensure that the sound quality output by the thin speaker maintains a certain quality. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a perspective view of a first embodiment of a speaker of the present application;

[0010] Figure 2 is an exploded view of the first embodiment of the speaker of the present application;

[0011] Figure 3 is a perspective view of a first embodiment of a plate-shaped reed of the present application;

[0012] Figure 4 is a side view of the first embodiment of the plate-shaped reed of the present application;

[0013] Figure 5 is a sectional view of line V-V of Figure 1 ;

[0014] Figure 6 is a perspective view of a second embodiment of a speaker of the present application;

[0015] Figure 7 is an exploded view of the second embodiment of the speaker of the present application;

[0016] Figure 8 is a perspective view of a second embodiment of a plate-shaped reed of the present application;

[0017] Figure 9 is a top view of the second embodiment of the plate-shaped reed of the present application;

[0018] Figure 10 is a sectional view of line X-X of Figure 6 ;

[0019] Figure 11 is a perspective view of a third embodiment of a speaker of the present application;

[0020] Figure 12 is an exploded view of the third embodiment of the speaker of the present application;

[0021] Figure 13 is a perspective view of a third embodiment of a plate-shaped reed of the present application;

[0022] Figure 14 is a side view of the third embodiment of the plate-shaped reed of the present application;

[0023] Figure 15 is Figure 11 a sectional view of the line XV-XV of

[0024] Figure 16 is a side view of a fourth embodiment of the plate-like damper of the present application;

[0025] Figure 17 is a side view of a fifth embodiment of the plate-like damper of the present application;

[0026] Figure 18 is a side view of a sixth embodiment of the plate-like damper of the present application;

[0027] Figure 19 is a side view of a seventh embodiment of the plate-like damper of the present application;

[0028] Figure 20 is a side view of an eighth embodiment of the plate-like damper of the present application.

[0029] BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 10: first vibration balance portion

[0031] 101: first end

[0032] 102: second end

[0033] 11: first wave

[0034] 12: second wave

[0035] 13: wave trough

[0036] 14: wave crest

[0037] 20: second vibration balance portion

[0038] 201: first end

[0039] 202: second end

[0040] 21: third wave

[0041] 22: fourth wave

[0042] 23: wave trough

[0043] 24: wave crest

[0044] 30, 30A, 30B: positioning portion

[0045] 31, 31A: first surface

[0046] 32: second surface

[0047] 33: groove

[0048] 40: First Reservation Section

[0049] 41: Second Reservation Section

[0050] 50: First Extension

[0051] 51: Second Extension

[0052] 100, 100A, 100B: Speakers

[0053] 110: Outer frame

[0054] 1101: Base

[0055] 1102: Top Cover

[0056] 1103: Bottom Cover

[0057] 120: Magnetic return device

[0058] 1201: Magnet

[0059] 130, 130A: Voice coil

[0060] 1301: Coil

[0061] 1302: Bump

[0062] 140: Conductor

[0063] 150,150A~G: Plate-shaped bomb

[0064] 160: Overhang

[0065] 170: Diaphragm

[0066] A: Length direction

[0067] P: Equilibrium point

[0068] θ1~2: Angle Detailed Implementation

[0069] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and component symbols, so that those skilled in the art can implement them after studying this specification.

[0070] Figure 1 This is a perspective view of the first embodiment of the loudspeaker 100 of the present invention. Figure 2 This is an exploded view of the first embodiment of the loudspeaker 100 of the present invention. Figure 3 This is a perspective view of the first embodiment of the plate-shaped elastic wave 150 of the present invention. Figure 4 This is a side view of a first embodiment of the plate-shaped elastic wave 150 of the present invention. Figure 5 yes Figure 1 A cross-sectional view of line VV. (See figure)Figures 1 to 5 As shown, the present application provides a speaker 100, which comprises a frame 110, a magnetic circuit 120, a voice coil 130, wires 140, a plurality of plate-shaped suspension waves 150, a suspension edge 160 and a diaphragm 170. The frame 110 comprises a base 1101, an upper cover 1102 and a lower cover 1103. The magnetic circuit 120 is disposed in the base 1101. The voice coil 130 is in a sheet shape, disposed between two magnets 1201 of the magnetic circuit 120, and its two ends pass through the upper cover 1102 and the lower cover 1103 respectively; the voice coil 130 has a coil 1301. The wires 140 are electrically connected to the coil 1301 and pass through the upper cover 1102 to connect an external power source (not shown). The plate-shaped suspension waves 150 are disposed on the base 1101 and close to the upper cover 1102; each plate-shaped suspension wave 150 comprises at least two vibration balance portions 10, 20 and at least one positioning portion 30; the at least one positioning portion 30 is disposed between the vibration balance portions 10, 20, separates the vibration balance portions 10, 20, and the center thereof is used to fix one end of the voice coil 130. The suspension edge 160 is disposed on the base 1101 and close to the lower cover 1103. The diaphragm 170 is disposed on the suspension edge 160, and the other end of the voice coil 130 contacts the inner side of the diaphragm 170.

[0071] The power alternating current emitted by a power amplifier (not shown) is transmitted to the coil 1301 of the voice coil 130 through the wires 140, so as to change the polarity of the magnetic field, so that the voice coil 130 generates a reaction force relative to the fixed sector generated by the magnetic circuit 120. The positive pulse driving of the voice coil 130 drives the diaphragm 170 to generate outward movement, the negative pulse driving of the voice coil 130 drives the diaphragm 170 to generate inward movement, the diaphragm 170 pushes the air, the air pressure changes to form sound waves; at the same time, the positioning portion 30 is affected by the reciprocating motion of the voice coil 130 to generate vibration, the positioning portion 30 can transmit the vibration to the vibration balance portions 10, 20, so that the vibration of the vibration balance portions 10, 20 is transmitted to the base 1101 in the opposite direction.

[0072] When the voice coil 130 reciprocates along the axial direction, because the center of the positioning portion 30 can provide good fixing effect for the voice coil 130, the voice coil 130 will not shake. On the other hand, because the positioning portion 30 separates the vibration balance portions 10, 20, the vibrations of the vibration balance portions 10, 20 will not interfere with each other, achieving the effect of vibration balance. Based on the above two points, the plate-shaped suspension wave 150 can ensure that the sound quality output by the thin speaker 100 maintains a certain quality.

[0073] As Figure 3 and Figure 4As shown in the first embodiment, the vibration balancing portions 10, 20 include a first vibration balancing portion 10 having a first end 101 and a second end 102 and including a plurality of waves 11, 12, and a second vibration balancing portion 20 having a first end 201 and a second end 202 and including a plurality of waves 21, 22. The plate-shaped elastic wave 150 includes a positioning portion 30 disposed between the second end 102 of the first vibration balancing portion 10 and the first end 201 of the second vibration balancing portion 20. The above embodiment is applicable to a thin speaker 100 having a single voice coil 130.

[0074] In some embodiments, the thin speaker 100 includes N voice coils 130, and the plate-shaped elastic wave 150 includes N+1 vibration balancing portions and N positioning portions 30, where N≥1. In other words, the number of voice coils 130 can be more than one, and the number of the vibration balancing portions 10, 20 and the positioning portions 30 and other components can be adjusted according to the number of voice coils 130.

[0075] As shown in the first embodiment, the vibration balancing portions 10, 20 include a first vibration balancing portion 10 having a first end 101 and a second end 102 and including a plurality of waves 11, 12, and a second vibration balancing portion 20 having a first end 201 and a second end 202 and including a plurality of waves 21, 22. The plate-shaped elastic wave 150 includes a positioning portion 30 disposed between the second end 102 of the first vibration balancing portion 10 and the first end 201 of the second vibration balancing portion 20. The above embodiment is applicable to a thin speaker 100 having a single voice coil 130. Figure 3 and Figure 4As shown, in the first embodiment, the direction from the first end 101 of the first vibration balancing section 10 to the second end 202 of the second vibration balancing section 20 is defined as a length direction A of the plate-shaped wave 150; along the length direction A of the plate-shaped wave 150, the shape of the first vibration balancing section 10 is exactly the same as the shape of the second vibration balancing section 20. More specifically, the wave near the first end 101 of the first vibration balancing section 10 is defined as a first wave 11, the wave near the second end 102 of the first vibration balancing section 10 is defined as a second wave 12, the wave near the first end 201 of the second vibration balancing section 20 is defined as a third wave 21, and the wave near the second end 202 of the second vibration balancing section 20 is defined as a fourth wave 22. There are N waves between the first wave 11 and the second wave 12, and N waves between the third wave 21 and the fourth wave 22, where N ≥ 0. Each wave 11, 12, 21, and 22 includes a trough 13 and 23 and a crest 14 and 24. One end of the trough 13 of the first wave 11 is defined as the first end 101 of the first vibration balance part 10. One end of the crest 14 of the second wave 12 is defined as the second end 102 of the first vibration balance part 10. One end of the trough 23 of the third wave 21 is defined as the first end 201 of the second vibration balance part 20. One end of the crest 24 of the fourth wave 22 is defined as the second end 202 of the second vibration balance part 20. The positioning part 30 is disposed between an equilibrium point P between the crest 14 of the second wave 12 and the trough 23 of the third wave 21. The first end 101 and the second end 102 of the first vibration balance part 10, the first end 201 and the second end 202 of the second vibration balance part 20, and the positioning part 30 are all located on the same plane. In this way, the amplitude and transmission speed of the vibration of the first vibration balancing part 10 and the second vibration balancing part 20 are exactly the same, achieving the effect of vibration balancing and ensuring that the sound quality output by the thin speaker 100 is maintained at a certain level.

[0076] like Figure 3 and Figure 4 As shown, in the first embodiment, the positioning part 30 is flat. Specifically, the positioning part 30 has a first surface 31 and a second surface 32, both of which are planar. The center of the first surface 31 is used to fix one end of the voice coil 130 (see...). Figure 5 In this way, the first vibration balancing part 10 and the second vibration balancing part 20 can be separated by the flat plate-shaped positioning part 30 at a more ideal distance, so that one end of the crest 14 of the second wave 12 is completely separated from one end of the trough 23 of the third wave 21. Therefore, the vibrations of the first vibration balancing part 10 and the second vibration balancing part 20 will not interfere with each other, thus achieving the effect of vibration balancing.

[0077] like Figure 3 and Figure 4As shown, in the first embodiment, the plate-shaped elastic wave 150 of the present invention further includes a first abutting portion 40 and a second abutting portion 41. The first abutting portion 40 has a first end and a second end, and the second abutting portion 41 has a first end and a second end. The second end of the first abutting portion 40 is connected to the first end 101 of the first vibration balancing portion 10, and the first end of the second abutting portion 41 is connected to the second end 202 of the second vibration balancing portion 20. Figure 1 , Figure 2 and Figure 5 As shown, the first abutting part 40 and the second abutting part 41 abut against the two sides of the base 1101 respectively, thereby fixing the plate-shaped spring wave 150 to the base 1101.

[0078] like Figure 3 and Figure 4 As shown, preferably, both the first abutment portion 40 and the second abutment portion 41 are flat and located on the same plane as the positioning portion 30. Figure 1 , Figure 2 and Figure 5 As shown, the plate-shaped spider 150 can maintain a horizontal position relative to the base 1101 and the voice coil 130 without any tilting problem.

[0079] like Figure 3 and Figure 4 As shown, in the first embodiment, the plate-shaped elastic wave 150 of the present invention further includes a first extension 50 and a second extension 51. The first extension 50 has a first end and a second end, and the second extension 51 has a first end and a second end. The first end of the first extension 50 is bent, and the second end of the first extension 50 is connected to the first end of the first abutment 40. The first end of the second extension 51 is connected to the second end of the second abutment 41, and the second end of the second extension 51 is bent. Figure 1 , Figure 2 and Figure 5 As shown, the plate-shaped spring 150 can move along both sides of the base 1101 via the first extension 50 and the second extension 51, so that both sides of the base 1101 are precisely positioned on the first abutment 40 and the second abutment 41, while preventing the plate-shaped spring 150 from falling off the base 1101.

[0080] like Figure 3 and Figure 4 As shown, preferably, the angle θ1 between the first abutment portion 40 and the first extension portion 50 is an obtuse angle, and the angle θ2 between the second abutment portion 41 and the second extension portion 51 is an obtuse angle. This allows the first extension portion 50 and the second extension portion 51 to more accurately guide the two sides of the base 1101 to be positioned on the first abutment portion 40 and the second abutment portion 41.

[0081] Figure 6is a perspective view of a second embodiment of the loudspeaker 100A of the present application, Figure 7 is an exploded view of the second embodiment of the loudspeaker 100A of the present application, Figure 8 is a perspective view of a second embodiment of the plate-shaped elastic wave 150A of the present application, Figure 9 is a top view of the second embodiment of the plate-shaped elastic wave 150A of the present application, Figure 10 is a cross-sectional view of the line XV-XV of Figure 8 As shown in Figures 6 to 10 The second embodiment differs from the first embodiment in that one end of the voice coil 130A is provided with a plurality of protrusions 1302, and a recess 33 is formed in the center of the first surface 31A of the positioning portion 30A, and the protrusions 1302 are respectively inserted into the recesses 33 of the positioning portions 30A of the plate-shaped elastic waves 150A. In this way, the center of the positioning portion 30A can provide the voice coil 130 with a more excellent fixing effect through the recess 33, and the effect of preventing the voice coil 130 from shaking is obviously better than that of the positioning portion 30.

[0082] Preferably, the recess 33 does not penetrate through both sides of the positioning portion 30A. In this way, the recess 33 can prevent the protrusions 1302 from sliding out from both sides of the positioning portion 30A, so that the center of the positioning portion 30A can provide the voice coil 130 with a more excellent fixing effect through the recess 33, and the effect of preventing the voice coil 130 from shaking is more significant.

[0083] Figure 11 is a perspective view of a third embodiment of the loudspeaker 100B of the present application, Figure 12 is an exploded view of the third embodiment of the loudspeaker 100B of the present application, Figure 13 is a perspective view of a third embodiment of the plate-shaped elastic wave 150B of the present application, Figure 14 is a side view of the third embodiment of the plate-shaped elastic wave 150B of the present application, Figure 15 is a cross-sectional view of the line XV-XV of Figure 11 As shown in Figures 11 to 15 The third embodiment differs from the first embodiment in that each of the vibration balance portions 10, 20 comprises a plurality of waves, and the wave height of at least one of the waves is different from that of the remaining waves. More specifically, each wave comprises a trough and a peak, and the wave height refers to the distance between the lowest point of the trough of each wave and the highest point of the peak of each wave. It is known that the greater the wave height of a wave, the softer the wave; conversely, the smaller the wave height of a wave, the harder the wave. Therefore, the waves can provide different hardnesses through the difference in wave height, and the combination of the waves with different hardnesses can generate a better elasticity, thereby being able to improve the load rebounding capability of the plate-shaped elastic wave 150B. In this way, the plate-shaped elastic wave 150B can reduce the noise of the loudspeaker 100B, so that the low-frequency channel of the loudspeaker 100B is easy to appear and has a better sound quality.

[0084] As​​​​​​​​​​​​​​Figure 13 and Figure 14 As shown, in the third embodiment, the wave height H1 of the first wave 11 is equal to the wave height H4 of the fourth wave 22, the wave height H2 of the second wave 12 is equal to the wave height H3 of the third wave 21, the wave height H1 of the first wave 11 is greater than the wave height H2 of the second wave 12, and the wave height H3 of the third wave 21 is less than the wave height H4 of the fourth wave 22. In other words, the first wave 11 and the fourth wave 22 are relatively soft, while the second wave 12 and the third wave 21 are relatively hard. Therefore, the first vibration balancing part 10 can provide different hardnesses through the first wave 11 and the second wave 12, and the combination of the first wave 11 and the second wave 12 with different hardnesses can produce better elasticity. The second vibration balancing part 20 can provide different hardnesses through the third wave 21 and the fourth wave 22, and the combination of the third wave 21 and the fourth wave 22 with different hardnesses can produce better elasticity. Thus, the first vibration balancing part 10 and the second vibration balancing part 20 can simultaneously improve the load rebound capability of the plate-shaped elastic wave 150B. In this way, the plate-shaped spider 150B can reduce the noise of the speaker 100B, making the low-frequency channel of the speaker 100B easier to present and with better sound quality. Furthermore, the rigidity of the plate-shaped spider 150B is symmetrically distributed and is soft on the outside and hard on the inside, achieving the effect of vibration balance and ensuring that the sound quality output by the thin speaker 100B remains at a certain level.

[0085] like Figure 13 and Figure 14 As shown, in the third embodiment, one end of the crest 14 of the first wave 11 is defined as the first end 101 of the first vibration balance part 10, and one end of the trough 13 of the second wave 12 is defined as the second end 102 of the first vibration balance part 10. The positioning part 30B is wave-shaped and is disposed between a balance point P of the trough 13 of the second wave 12 and the trough 23 of the third wave 21. Specifically, the shape of the positioning part 30B is the crest 14 of the wave, and the height H5 of the positioning part 30B is equal to the wave height H2 of the second wave 12 and the wave height H3 of the third wave 21, so that the hardness of the positioning part 30B is the same as that of the second wave 12 and the third wave 21. Therefore, the plate-shaped slab wave 150B not only has a symmetrical hardness distribution, but also a symmetrical structure, resulting in a better vibration balance effect and a more outstanding sound quality output by the thin speaker 100B.

[0086] Figure 16 This is a side view of the fourth embodiment of the plate-shaped elastic wave 150C of the present invention. (See attached image.) Figure 16 As shown, the difference between the fourth embodiment and the third embodiment is that the wave height H1 of the first wave 11 is less than the wave height H2 of the second wave 12, and the wave height H3 of the third wave 21 is greater than the wave height H4 of the fourth wave 22, making the plate-shaped bouncy wave 150C hard on the outside and soft on the inside. Apart from this, the remaining technical features and effects of the fourth embodiment are the same as those of the third embodiment.

[0087] Figure 17 is a side view of a fifth embodiment of the plate-shaped suspension 150D of the present application. As shown, the fifth embodiment differs from the third embodiment in that the wave height H1 of the first wave 11 is equal to the wave height H3 of the third wave 21, the wave height H2 of the second wave 12 is equal to the wave height H4 of the fourth wave 22, the wave height H1 of the first wave 11 is smaller than the wave height H2 of the second wave 12, and the height H5 of the positioning portion 30B is equal to the wave height H3 of the third wave 21. As a result, the hardness of the plate-shaped suspension 150D presents an asymmetric distribution and the soft and hard are staggered, and the vibration balance effect is slightly inferior to the third embodiment and the fourth embodiment, but still superior to the prior art. In addition, the remaining technical features and effects of the fifth embodiment are the same as those of the third embodiment. Figure 17

[0088] is a side view of a sixth embodiment of the plate-shaped suspension 150E of the present application. As shown, the sixth embodiment differs from the third embodiment in that: first, one end of the wave trough 13 of the first wave 11 defines the first end 101 of the first vibration balance portion 10, and one end of the wave crest 14 of the second wave 12 defines the second end 102 of the first vibration balance portion 10; second, the positioning portion 30 presents a flat plate shape, and the positioning portion 30 is arranged between a balance point P between the wave crest 14 of the second wave 12 and the wave trough 23 of the third wave 21; third, the first end 101 and the second end 102 of the first vibration balance portion 10, the first end 201 and the second end 202 of the second vibration balance portion 20, and the positioning portion 30 are all located on the same plane; and fourth, the positioning portion 30 has a first surface 31 and a second surface 32, both of which are flat, and the center of the first surface 31 is used to fix one end of the voice coil 130 (not shown). In this way, the amplitude and transmission speed of the vibration of the first vibration balance portion 10 and the second vibration balance portion 20 are completely the same, achieving the effect of vibration balance and ensuring that the sound quality output by the thin speaker 100B maintains a certain quality. Furthermore, the first vibration balance portion 10 and the second vibration balance portion 20 can be separated by the flat plate-shaped positioning portion 30 at a more ideal distance, so that one end of the wave crest 14 of the second wave 12 and one end of the wave trough 23 of the third wave 21 are completely disconnected, and thus the vibration of the first vibration balance portion 10 and the second vibration balance portion 20 will not interfere with each other, achieving the effect of vibration balance. Preferably, the first abutting portion 40 and the second abutting portion 41 both present a flat plate shape and are located on the same plane as the positioning portion 30. In this way, the plate-shaped suspension 150E can be horizontally arranged relative to the base 1101 and the voice coil 130, and there will be no skewing problem. In addition, the remaining technical features and effects of the sixth embodiment are completely the same as those of the third embodiment. Figure 18 Figure 18 is a side view of a sixth embodiment of the plate-shaped suspension 150E of the present application. As shown, the sixth embodiment differs from the third embodiment in that: first, one end of the wave trough 13 of the first wave 11 defines the first end 101 of the first vibration balance portion 10, and one end of the wave crest 14 of the second wave 12 defines the second end 102 of the first vibration balance portion 10; second, the positioning portion 30 presents a flat plate shape, and the positioning portion 30 is arranged between a balance point P between the wave crest 14 of the second wave 12 and the wave trough 23 of the third wave 21; third, the first end 101 and the second end 102 of the first vibration balance portion 10, the first end 201 and the second end 202 of the second vibration balance portion 20, and the positioning portion 30 are all located on the same plane; and fourth, the positioning portion 30 has a first surface 31 and a second surface 32, both of which are flat, and the center of the first surface 31 is used to fix one end of the voice coil 130 (not shown). In this way, the amplitude and transmission speed of the vibration of the first vibration balance portion 10 and the second vibration balance portion 20 are completely the same, achieving the effect of vibration balance and ensuring that the sound quality output by the thin speaker 100B maintains a certain quality. Furthermore, the first vibration balance portion 10 and the second vibration balance portion 20 can be separated by the flat plate-shaped positioning portion 30 at a more ideal distance, so that one end of the wave crest 14 of the second wave 12 and one end of the wave trough 23 of the third wave 21 are completely disconnected, and thus the vibration of the first vibration balance portion 10 and the second vibration balance portion 20 will not interfere with each other, achieving the effect of vibration balance. Preferably, the first abutting portion 40 and the second abutting portion 41 both present a flat plate shape and are located on the same plane as the positioning portion 30. In this way, the plate-shaped suspension 150E can be horizontally arranged relative to the base 1101 and the voice coil 130, and there will be no skewing problem. In addition, the remaining technical features and effects of the sixth embodiment are completely the same as those of the third embodiment.

[0089] Figure 19 ​is a side view of a seventh embodiment of the plate-shaped wave spring 150F of the present application. As shown in Figure 19 The seventh embodiment differs from the fourth embodiment in that: first, one end of the trough 13 of the first wave 11 defines the first end 101 of the first vibration balance portion 10, and one end of the crest 14 of the second wave 12 defines the second end 102 of the first vibration balance portion 10; second, the positioning portion 30 is in the form of a flat plate, and the positioning portion 30 is disposed between the crest 14 of the second wave 12 and the trough 23 of the third wave 21 at a balance point P; and third, the first end 101 and the second end 102 of the first vibration balance portion 10, the first end 201 and the second end 202 of the second vibration balance portion 20, and the positioning portion 30 are all located on the same plane. In this way, the amplitude and the transmission speed of the vibrations of the first vibration balance portion 10 and the second vibration balance portion 20 are completely the same, the effect of vibration balance is achieved, and the quality of the sound output by the thin speaker 100B is ensured to maintain a certain quality. In addition, the remaining technical features and effects of the seventh embodiment are completely the same as those of the fourth embodiment.

[0090] Figure 20 is a side view of an eighth embodiment of the plate-shaped wave spring 150G of the present application. As shown in Figure 20 The eighth embodiment differs from the fifth embodiment in that: first, one end of the trough 13 of the first wave 11 defines the first end 101 of the first vibration balance portion 10, and one end of the crest 14 of the second wave 12 defines the second end 102 of the first vibration balance portion 10; second, the positioning portion 30 is in the form of a flat plate, and the positioning portion 30 is disposed between the crest 14 of the second wave 12 and the trough 23 of the third wave 21 at a balance point P; and third, the first end 101 and the second end 102 of the first vibration balance portion 10, the first end 201 and the second end 202 of the second vibration balance portion 20, and the positioning portion 30 are all located on the same plane. In this way, the amplitude and the transmission speed of the vibrations of the first vibration balance portion 10 and the second vibration balance portion 20 are completely the same, the effect of vibration balance is achieved, and the quality of the sound output by the thin speaker 100B is ensured to maintain a certain quality. In addition, the remaining technical features and effects of the eighth embodiment are completely the same as those of the fifth embodiment.

[0091] In some embodiments, based on the structures of the third embodiment to the eighth embodiment, the number of the first wave 11, the second wave 12, the third wave 21, and the fourth wave 22 is multiple, and the number of the first wave 11, the second wave 12, the third wave 21, and the fourth wave 22 is the same.

[0092] In some embodiments, based on the structures of the third, fourth, sixth and seventh embodiments, the number of the first waves 11, the second waves 12, the third waves 21 and the fourth waves 22 are all plural, the number of the first waves 11 is the same as the number of the fourth waves 22, the number of the second waves 12 is the same as the number of the third waves 21, the number of the first waves 11 is different from the number of the second waves 12, and the number of the third waves 21 is different from the number of the fourth waves 22.

[0093] In some embodiments, based on the structures of the fifth and eighth embodiments, the number of the first waves 11, the second waves 12, the third waves 21 and the fourth waves 22 are all plural, the number of the first waves 11 is the same as the number of the third waves 21, the number of the second waves 12 is the same as the number of the fourth waves 22, the number of the first waves 11 is different from the number of the second waves 12, and the number of the third waves 21 is different from the number of the fourth waves 22.

[0094] In this way, the plate-shaped elastic wave can control the area ratio of the harder part and the softer part through the number of waves with different wave heights, and provide more diversified combination changes.

[0095] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Any modification or change made in the same inventive spirit shall still be included in the scope intended to be protected by the present application.

Claims

1. A plate-shaped speaker cone comprising: a first vibrating balance portion having a first end and a second end and comprising a plurality of waves; a second vibrating balance portion having a first end and a second end and comprising a plurality of waves; and a positioning portion disposed between the second end of the first vibrating balance portion and the first end of the second vibrating balance portion, separating the first vibrating balance portion and the second vibrating balance portion, and having a center for fixing one end of a voice coil; a first abutting portion having a first end and a second end, the second end of the first abutting portion being connected to the first end of the first vibrating balance portion, wherein the first abutting portion is for abutting against one side of a base; a second abutting portion having a first end and a second end, the first end of the second abutting portion being connected to the second end of the second vibrating balance portion, wherein the second abutting portion is for abutting against another side of the base; a first extension portion having a first end and a second end, the first end of the first extension portion being in a bent shape, and the second end of the first extension portion being connected to the first end of the first abutting portion; and a second extension portion having a first end and a second end, the first end of the second extension portion being connected to the second end of the second abutting portion, and the second end of the second extension portion being in a bent shape. A length direction of the plate-shaped speaker cone is defined from the first end of the first vibrating balance portion to the second end of the second vibrating balance portion; and in the length direction of the plate-shaped speaker cone, the first vibrating balance portion and the second vibrating balance portion have the same shape.

2. The plate-like wave washer according to claim 1, wherein A wave close to the first end of the first vibrating balance portion is defined as a first wave, a wave close to the second end of the first vibrating balance portion is defined as a second wave, a wave close to the first end of the second vibrating balance portion is defined as a third wave, and a wave close to the second end of the second vibrating balance portion is defined as a fourth wave, there are N waves between the first wave and the second wave, and there are N waves between the third wave and the fourth wave, N≥0; wherein each of the waves comprises a wave trough and a wave crest, one end of the wave trough of the first wave is defined as the first end of the first vibrating balance portion, one end of the wave crest of the second wave is defined as the second end of the first vibrating balance portion, one end of the wave trough of the third wave is defined as the first end of the second vibrating balance portion, and one end of the wave crest of the fourth wave is defined as the second end of the second vibrating balance portion; wherein the positioning portion is disposed between the balance point of the wave crest of the second wave and the wave trough of the third wave; and wherein the first end and the second end of the first vibrating balance portion, the first end and the second end of the second vibrating balance portion, and the positioning portion are all located on the same plane.

3. The plate-like wave washer according to claim 2, wherein The wave height of at least one of the plurality of waves is different from the wave height of the remaining waves.

4. The plate-like wave washer according to claim 1, wherein ​ 5. The plate-like wave washer according to claim 4, wherein At least one wave near the first end of the first vibration balance part is defined as at least one first wave, at least one wave near the second end of the first vibration balance part is defined as at least one second wave, at least one wave near the first end of the second vibration balance part is defined as at least one third wave, and at least one wave near the second end of the second vibration balance part is defined as at least one fourth wave; and wherein the wave height of the at least one first wave is equal to the wave height of the at least one fourth wave, the wave height of the at least one second wave is equal to the wave height of the at least one third wave, the wave height of the at least one first wave is greater than the wave height of the at least one second wave, and the wave height of the at least one third wave is less than the wave height of the at least one fourth wave.

6. The plate-like wave washer according to claim 4, wherein At least one wave near the first end of the first vibration balance part is defined as at least one first wave, at least one wave near the second end of the first vibration balance part is defined as at least one second wave, at least one wave near the first end of the second vibration balance part is defined as at least one third wave, and at least one wave near the second end of the second vibration balance part is defined as at least one fourth wave; and wherein the wave height of the at least one first wave is equal to the wave height of the at least one fourth wave, the wave height of the at least one second wave is equal to the wave height of the at least one third wave, the wave height of the at least one first wave is less than the wave height of the at least one second wave, and the wave height of the at least one third wave is greater than the wave height of the at least one fourth wave.

7. The plate-like wave washer according to claim 4, wherein At least one wave near the first end of the first vibration balance part is defined as at least one first wave, at least one wave near the second end of the first vibration balance part is defined as at least one second wave, at least one wave near the first end of the second vibration balance part is defined as at least one third wave, and at least one wave near the second end of the second vibration balance part is defined as at least one fourth wave; and wherein the wave height of the at least one first wave is equal to the wave height of the at least one third wave, the wave height of the at least one second wave is equal to the wave height of the at least one fourth wave, the wave height of the at least one first wave is less than the wave height of the at least one second wave, and the wave height of the at least one third wave is less than the wave height of the at least one fourth wave.

8. The plate-like wave washer according to claim 1, wherein The positioning part is in a flat plate shape, the positioning part has a first surface and a second surface, both the first surface and the second surface are planes, and the center of the first surface is used to fix one end of the voice coil.

9. The plate-like wave washer according to claim 1, wherein The positioning part is in a flat plate shape, the positioning part has a first surface and a second surface, the center of the first surface is provided with a groove, the groove is used to insert one end of the voice coil therein, and the second surface is a plane.

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