TWI712322B - Speaker with breathable elastic wave module - Google Patents

Abstract

A speaker with a breathable elastic wave module, comprising: a vibration component, a magnetic return component, a speaker base and a breathable elastic wave module. The vibration component includes a diaphragm and a voice coil, and the voice coil is connected to the diaphragm The magnetic return assembly includes an air guide base and a magnet part. The magnet part is arranged on the air guide base, the voice coil is floating arranged outside the magnet part, the magnet part has a through hole, and the horn base is arranged on the vibration assembly and the magnetic return assembly , Including a hollow cylinder and a first elastic sheet, the hollow cylinder is arranged in the through hole, the hollow cylinder is connected to the air guide base, and the first elastic sheet is arranged in the hollow of the hollow cylinder and connected to the bottom of the diaphragm . The speaker with a breathable elastic wave module of the present invention can use the breathable elastic wave module to reduce the polarization distortion of the voice coil and increase the output volume of the speaker without increasing the height of the speaker.

Description

Speaker with breathable elastic wave module

The present invention relates to a loudspeaker, and more particularly relates to a loudspeaker with a breathable elastic wave module.

Due to the small size of the micro speaker, the volume is limited, although the input voltage of the speaker can be increased to increase the volume, but the amplitude of the voice coil will increase, and it is difficult to maintain the stable vibration of the voice coil in the axial direction, resulting in distortion of the sound effect . Especially at low frequencies, once the voltage is increased, the polarization distortion of the voice coil is more likely to occur, and even the phenomenon of abnormal sound generated by the voice coil hitting the magnetic return component.

Traditionally, in order to solve the polarization distortion of the voice coil under the large amplitude, it is usually necessary to use the elastic wave as a damping to absorb the deviation of the voice coil under the large amplitude. However, the volume of the micro speaker is small and the traditional elastic wave structure is used. But it will increase the height of the micro speaker, so it is not suitable for use in products such as thin laptops or tablets. In addition, the traditional elastic wave structure does not adopt a modular design. When the height and space of the micro speaker are limited, it is not easy to assemble and connect the elastic wave with other parts of the speaker, and the assembly operation is more complicated.

Therefore, in order to solve various problems of the conventional speaker, the present invention proposes a speaker with a breathable elastic wave module.

In order to achieve the above and other objectives, the present invention provides a speaker with a breathable elastic wave module, which includes: a vibration component, including a diaphragm and a voice coil, the voice coil is connected to the bottom of the diaphragm; a magnetic The return assembly includes an air guide base and a magnet part, the magnet part is arranged on the air guide base, the voice coil is floatingly arranged outside the magnet part, the magnet part has a through hole; a horn seat is arranged on the vibration Component and the magnetic return component; and a breathable elastic wave module, including a hollow cylinder and a first elastic sheet, the hollow cylinder is disposed in the through hole, the hollow cylinder is connected to the air guide base, the The first elastic sheet is arranged at the hollow of the hollow cylinder and connected to the bottom of the diaphragm.

In an embodiment of the present invention, the air-permeable elastic wave module further includes a second elastic sheet, and the first elastic sheet and the second elastic sheet are arranged up and down and connected to each other so as to be disposed in the hollow of the hollow cylinder.

In an embodiment of the present invention, the central area of the second elastic sheet protrudes and abuts against the bottom of the first elastic sheet.

In an embodiment of the present invention, the distance between the lowest point of the second elastic sheet and the surface of the air guide base is always greater than the distance between the magnet member and the diaphragm.

In an embodiment of the present invention, the air-permeable elastic wave module further includes a fixing post, one end of the fixing post is connected to the bottom of the first elastic sheet, and the other end is fixed to the second elastic sheet.

In an embodiment of the present invention, the distance between the lowest point of the second elastic sheet or the fixing column and the surface of the air guide base is always greater than the distance between the magnet member and the diaphragm.

In an embodiment of the present invention, the fixed post is a breathable structure.

In an embodiment of the present invention, the first elastic sheet and the second elastic sheet have opposite vent structures.

In an embodiment of the present invention, the first elastic sheet is made of polymer material or metal material.

In an embodiment of the present invention, the first elastic sheet is provided with a first vent.

In an embodiment of the present invention, the first elastic sheet has a first overhanging portion, and the first vent is located at the first overhanging portion.

In an embodiment of the present invention, the second elastic sheet is provided with a second vent hole.

In an embodiment of the present invention, the second elastic sheet has a second overhanging portion, and the second vent is located at the second overhanging portion.

In an embodiment of the present invention, the first elastic sheet is a breathable woven fabric, and the breathable elastic wave module further includes a fixing post disposed at the center of the first elastic sheet, and one end of the fixing post is connected to the diaphragm The distance between the other end of the fixed column and the surface of the air guide base is always greater than the distance between the magnet and the diaphragm.

In an embodiment of the present invention, the breathable elastic wave module is a cylinder or a corner cylinder.

In an embodiment of the present invention, the air guiding base is provided with at least one air guiding channel, the horn base is provided with a communicating hole corresponding to the air guiding channel, and the hollow cylinder is connected through the air guiding channel and the communicating hole. Connect to the outside world.

In an embodiment of the present invention, the hollow cylinder is provided with an opening corresponding to the position of the air guide channel.

In an embodiment of the present invention, the air guide base has a break structure, and the hollow cylinder is disposed on the break structure, so that a gap is sandwiched between the hollow cylinder and the bottom of the air guide base.

In an embodiment of the present invention, the air guide base has a high portion and a bottom, and the hollow cylinder is disposed at the high portion, so that a gap is sandwiched between the hollow cylinder and the bottom.

Thereby, the speaker with a breathable elastic wave module of the present invention can use the breathable elastic wave module to reduce the polarization distortion of the voice coil without increasing the height of the speaker, thereby increasing the output volume of the speaker, so it can be widely used in thin-type In products such as laptops or tablets. In addition, the present invention further designs the elastic wave as a modular structure, so that the elastic wave becomes an independent module unit, which is easier to assemble inside the magnetic return component of the speaker, reducing the difficulty of assembly work and improving the assembly yield. And efficiency.

100: Speaker with breathable elastic wave module

100a: Speaker with breathable elastic wave module

100b: Speaker with breathable elastic wave module

100c: Speaker with breathable elastic wave module

100d: Speaker with breathable elastic wave module

100e: Speaker with breathable elastic wave module

100g: speaker with breathable elastic wave module

100i: Speaker with breathable elastic wave module

1: Vibration component

11: diaphragm

12: Voice coil

2: Magnetic return component

21: Air guide base

211: Air Channel

212: Break structure

213: high part

214: bottom

21a: Air guide base

22: Magnet

221: Magnet

223: Was

23: Through hole

23i: Through hole

3: Horn seat

31: Connecting hole

4: Breathable elastic wave module

4i: Breathable elastic wave module

41: Hollow cylinder

411: hole

41b: Hollow cylinder

42: The first elastic sheet

421: The first vent

422: The first overhang ridge

421h: vent structure

42f: The first elastic sheet

42g: the first elastic sheet

42h: the first elastic sheet

43: second elastic sheet

431: second vent

432: The second overhang ridge

431h: vent structure

43h: second elastic sheet

44: fixed column

44e: fixed column

FIG. 1A is an exploded schematic diagram of a speaker with a breathable elastic wave module according to a first embodiment of the present invention.

FIG. 1B is an exploded schematic diagram of the breathable elastic wave module according to the first embodiment of the present invention.

1C is a schematic diagram of a three-dimensional cross-sectional view of a speaker with a breathable elastic wave module according to the first embodiment of the present invention.

1D is a schematic cross-sectional view of a speaker with a breathable elastic wave module according to the first embodiment of the present invention.

2A is an exploded schematic diagram of a speaker with a breathable elastic wave module according to a second embodiment of the present invention.

2B is a schematic diagram of a three-dimensional cross-sectional view of a speaker with a breathable elastic wave module according to a second embodiment of the present invention.

3A is an exploded schematic diagram of a speaker with a breathable elastic wave module according to a third embodiment of the present invention.

3B is a schematic partial perspective cross-sectional view of a speaker with a breathable elastic wave module according to a third embodiment of the present invention.

4 is a schematic cross-sectional view of a speaker with a breathable elastic wave module according to a fourth embodiment of the present invention.

5 is a schematic cross-sectional view of a speaker with a breathable elastic wave module according to a fifth embodiment of the present invention.

6 is a schematic cross-sectional view of a speaker with a breathable elastic wave module according to a sixth embodiment of the present invention.

FIG. 7 is an exploded schematic diagram of a breathable elastic wave module according to a seventh embodiment of the present invention.

8 is a schematic cross-sectional view of a speaker with a breathable elastic wave module according to an eighth embodiment of the present invention.

FIG. 9 is an exploded schematic diagram of a breathable elastic wave module according to a ninth embodiment of the present invention.

10A is an exploded schematic diagram of a speaker with a breathable elastic wave module according to a tenth embodiment of the present invention.

10B is an exploded schematic diagram of the breathable elastic wave module according to the tenth embodiment of the present invention.

In order to fully understand the present invention, a detailed description of the present invention is given with the following specific embodiments and accompanying drawings. Those skilled in the art can understand the purpose, features and effects of the present invention from the content disclosed in this specification. It should be noted that the present invention can be implemented through other different specific implementations. The embodiments are implemented or applied, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of patent application of the present invention. The description is as follows: As shown in FIGS. 1A to 1D, the speaker 100 with a breathable elastic wave module according to the first embodiment of the present invention includes: a vibration component 1, a magnetic return component 2, a speaker base 3 and a breathable Bouncing module 4.

The vibration assembly 1 includes a diaphragm 11 and a voice coil 12, and the voice coil 12 is connected to the bottom of the diaphragm 11. The magnetic force between the voice coil 12 and the magnetic return assembly 2 causes the voice coil to float up and down, and then drives the diaphragm 11 to vibrate up and down to emit sound waves.

The magnetic return assembly 2 includes an air guide base 21 and a magnet member 22. The magnet member 22 is arranged on the air guide base 21. The voice coil 12 is floatingly arranged outside the magnet member 22. The central area of the magnet member 22 has a through hole 23.

The horn base 3 is looped around the vibration assembly 1 and the magnetic return assembly 2.

The breathable elastic wave module 4 is disposed in the through hole 23. The breathable elastic wave module 4 includes a hollow cylinder 41 and a first elastic sheet 42. The hollow cylinder 41 is disposed in the through hole 23. The hollow cylinder 41 is in communication with the air guide base 21. The first elastic sheet 42 is disposed in the hollow. The hollow of the column 41 is connected to the central area of the diaphragm 11.

Thereby, the speaker 100 with a breathable elastic wave module of the present invention can use the breathable elastic wave module 4 to reduce the polarization distortion of the voice coil 12 without increasing the height of the speaker, that is, it can increase the input to the speaker Voltage to increase the output volume of the speaker. In addition, the present invention goes further The elastic wave is designed as a modular structure, so that the elastic wave becomes an independent module unit, which is easier to assemble inside the magnetic return component of the speaker, and improves the assembly yield and efficiency.

Further, in this embodiment, the breathable elastic wave module 4 is a cylinder, but the present invention is not limited to this.

Further, in this embodiment, the magnet member 22 includes a magnet 221 and a washer 223, and the washer 223 covers the upper surface of the magnet 221 to increase the magnetic permeability.

Further, in this embodiment, the first elastic sheet 42 is made of a polymer material, which has many advantages such as light weight, low cost, and easy forming.

Further, as shown in FIG. 1B, in this embodiment, the first elastic sheet 42 is provided with a first vent 421, and the air flow generated by the vibration of the diaphragm 11 enters the hollow cylinder 41 through the first vent 421 . In addition, the first ventilation hole 421 can also increase the elasticity of the first elastic sheet 42.

Further, in this embodiment, the air guide base 21 is provided with at least one air guide channel 211, the horn base 3 is provided with a communication hole 31 corresponding to the air guide channel 211, and the hollow cylinder 41 passes through the air guide channel 211 and the communication hole. 31 and connect to the outside world. Thereby, the air flow in the air-permeable elastic wave module 4 can be exchanged with the outside through the air guide channel 211 and the communication hole 31, so that the pressure in the air-permeable elastic wave module 4 is kept stable.

Further, as shown in FIG. 1A, in this embodiment, the air guide base 21 has a breakage structure 212, and the hollow cylinder 41 is disposed on the breakage structure 212, so that the hollow cylinder 41 and the bottom of the air guide base 21 A gap is sandwiched between 214, so that the airflow in the air-permeable elastic wave module 4 can enter the air guiding channel 211 through the break, so that the pressure in the air-permeable elastic wave module 4 is kept stable.

Further, as shown in FIGS. 2A and 2B, in the speaker 100a with a breathable elastic wave module according to the second embodiment of the present invention, the air guide base 21a has a high portion 213 and a bottom 214, and a hollow cylinder 41 is provided At the high part 213, a gap is sandwiched between the hollow cylinder 41 and the bottom 214 for ventilation The airflow in the elastic wave module 4 can enter the air guiding channel 211 through the gap, so that the pressure in the air-permeable elastic wave module 4 remains stable.

Furthermore, as shown in FIGS. 3A and 3B, in the speaker 100b with a breathable elastic wave module according to the third embodiment of the present invention, the hollow cylinder 41b is provided with an opening 411 at a position corresponding to the air guide channel 211 to facilitate The airflow in the air-permeable elastic wave module 4 can enter the air guiding channel 211 through the opening 411, so that the pressure in the air-permeable elastic wave module 4 is kept stable.

Further, as shown in FIG. 4, in the speaker 100c with the breathable elastic wave module according to the fourth embodiment of the present invention, the breathable elastic wave module 4 further includes a second elastic sheet 43, a first elastic sheet 42, and a second elastic sheet. The two elastic sheets 43 are arranged up and down and connected to each other so as to be disposed in the hollow of the hollow cylinder 41. The second elastic sheet 43 can also be provided with a second vent hole 431 to guide flow and increase elasticity. With the design of the bi-elastic sheet, its damping effect is greater than that of the single-layer elastic sheet.

Furthermore, as shown in FIG. 4, in the fourth embodiment of the present invention, the central area of the second elastic sheet 43 is protruding and connected to the bottom of the first elastic sheet 42 to provide support for the first elastic sheet 42. Wherein, the convex top area of the central area of the second elastic piece 43 may be greater than or equal to the convex bottom area of the central area of the first elastic piece 42 so that the convex bottom of the central area of the first elastic piece 42 can be completely attached. Attached to the convex top of the central area of the second elastic sheet 43. In addition, the first suspended edge ridged portion 422 of the first elastic sheet 42 and the second suspended edge ridged portion 432 of the second elastic sheet 43 may face opposite directions, different directions, or the same direction (Figure 4 Same direction as an example). In addition, the first suspension ridge 422 of the first elastic sheet 42 may be larger than the second suspension ridge 432 of the second elastic sheet 43. Furthermore, the first vent hole 421 is located at the first ridged portion 422, and the second vent hole 431 is located at the second ridged portion 432.

Further, in the fourth embodiment of the present invention, the distance between the lowest point of the second elastic sheet 43 and the surface of the air guide base 21 is always greater than the distance between the magnet member 22 and the diaphragm 11. Thereby, the second elastic sheet 43 does not touch the air guide base 21 when vibrating, which affects the sound performance.

Further, as shown in FIG. 5, in the speaker 100d with a breathable elastic wave module according to the fifth embodiment of the present invention, the breathable elastic wave module 4 further includes a fixed post 44, and one end of the fixed post 44 is connected to the first elastic The bottom of the sheet 42 and the other end are fixed to the second elastic sheet 43. The fixing post can be a light object, high-density foam material or plastic, etc., to provide good support for the first elastic sheet 42 and the second elastic sheet 43.

Further, in the fifth embodiment of the present invention, the distance between the lowest point of the second elastic sheet 43 or the fixing post 44 and the surface of the air guide base 21 is always greater than the distance between the magnet member 22 and the diaphragm 11. In this way, the second elastic sheet 43 or the fixed post 44 does not touch the air guide base 21 when vibrating, which affects the sound performance.

Further, as shown in FIG. 6, in the speaker 100e with a breathable elastic wave module according to the sixth embodiment of the present invention, the fixed post 44e is a breathable structure, for example, a hollow tube, and is a light-weight but rigid material (Such as PI). The first elastic sheet 42 and the second elastic sheet 43 are not limited to whether they are breathable or not, and may be integrally formed polymer materials, including PET, PEN, PEI, PAR, PEEK, etc. Thereby, even if the first elastic sheet 42 and the second elastic sheet 43 are made of air-impermeable materials or structures, the pressure in the air-permeable elastic wave module 4 can still be connected to the air guide channel 211 through the air-permeable fixing column 44e to communicate with the outside world. Pressure balance.

Further, as shown in FIG. 7, in the seventh embodiment of the present invention, the first elastic sheet 42f is a metal elastic sheet, which has better durability. The metal first elastic sheet 42f can be directly stamped from a metal part, and its material is, for example, stainless steel. The metal first elastic sheet 42f may be combined with the hollow cylinder 41 of other materials, or may be integrally formed with the hollow cylinder 41, and the present invention is not limited thereto.

Further, as shown in FIG. 8, in the speaker 100g with a breathable elastic wave module according to the eighth embodiment of the present invention, the first elastic sheet 42g is a breathable woven cloth, and the breathable elastic wave module 4 further includes a fixing post 44 , Set in the center of the first elastic sheet 42g. One end of the fixed post 44 is connected to the bottom of the diaphragm 11, and the distance between the other end of the fixed post 44 and the surface of the air guide base 21 is always greater than the distance between the magnet member 22 and the diaphragm 11. Thereby, the fixed column 44 does not touch the air guide base 21 when vibrating, which affects the sound performance.

Further, as shown in FIG. 9, in the ninth embodiment of the present invention, the first elastic sheet 42h and the second elastic sheet 43h have opposite vent structures 421h and 431h. Thereby, when manufacturing the first elastic sheet 42h and the second elastic sheet 43h, the manufacturing cost can be saved for two identical components, and the opposite vent structure 421h and 431h can provide sufficient supporting force of the fixing post 44.

Further, as shown in FIGS. 10A and 10B, in the speaker 100i with a breathable elastic wave module according to a tenth embodiment of the present invention, the breathable elastic wave module 4i is a corner cylinder. In this embodiment, a rectangular cylinder is taken as an example, and the corresponding through hole 23i is also a corresponding square hole. However, the present invention is not limited to this. Therefore, when the terminal application product (tablet or laptop) has space limitations and the speaker needs to be placed in the corner of the terminal application product, if the volume output of the speaker is to be increased, the speaker is often designed with a high aspect ratio in order to increase the sound area . Therefore, speakers often have an aspect ratio as high as 2:1, or even close to 4:1. For this type of loudspeaker with a large aspect ratio, if a rectangular bounce is used, the length of the bounce can increase proportionally with the length of the speaker. In addition, because the length and width of the rectangular elastic wave are relatively large, when the upper and lower elastic sheets of the rectangular elastic wave are designed, the shape and length of the short axis to the center cylinder will be different from the shape and length of the long axis to the center cylinder. If the rectangular column itself is also designed with the same aspect ratio, the shape or length of the minor axis and the major axis can be the same or different. Furthermore, in this embodiment, the design of the upper and lower elastic sheets can be similar to the "swastika" shape, and the upper and lower elastic sheets can be opposite or the same.

The present invention has been disclosed in the above embodiments. However, those skilled in the art should understand that the embodiments are only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

100: Speaker with breathable elastic wave module

1: Vibration component

11: diaphragm

12: Voice coil

2: Magnetic return component

21: Air guide base

211: Air Channel

212: Break structure

214: bottom

22: Magnet

221: Magnet

223: Was

23: Through hole

3: Horn seat

31: Connecting hole

4: Breathable elastic wave module

41: Hollow cylinder

42: The first elastic sheet

Claims (18)

A speaker with an air-permeable elastic wave module, comprising: a vibration component, including a diaphragm and a voice coil, the voice coil is connected to the bottom of the diaphragm; a magnetic return component, including an air guide base and a magnet The magnet piece is arranged on the air guide base, the voice coil is floating arranged outside the magnet piece, the magnet piece has a through hole; a horn seat arranged on the vibration assembly and the magnetic return assembly; and a breathable elastic The wave module includes a hollow cylinder, a first elastic sheet, and a second elastic sheet. The hollow cylinder is disposed in the through hole. The hollow of the hollow cylinder communicates with the air guide base. The elastic sheet is arranged in the hollow of the hollow cylinder and connected to the bottom of the diaphragm, and the first elastic sheet and the second elastic sheet are arranged up and down and connected to each other to be arranged in the hollow of the hollow cylinder. The speaker with a breathable elastic wave module according to claim 1, wherein the central area of the second elastic sheet is convex and connected to the bottom of the first elastic sheet. The speaker with a breathable elastic wave module according to claim 1, wherein the distance between the lowest point of the second elastic sheet and the surface of the air guide base is always greater than the distance between the magnet member and the diaphragm. The speaker with a breathable elastic wave module according to claim 1, wherein the breathable elastic wave module further includes a fixing post, one end of the fixing post is connected to the bottom of the first elastic sheet, and the other end is fixed to the first elastic sheet Two elastic tablets. The speaker with a breathable elastic wave module according to claim 4, wherein the distance between the lowest point of the second elastic sheet or the fixing column and the surface of the air guide base is always greater than the distance between the magnet member and the diaphragm The distance between. The speaker with a breathable elastic wave module as described in claim 4, wherein the fixing column is a breathable structure. The speaker with a breathable elastic wave module according to claim 1, wherein the first elastic sheet and the second elastic sheet have opposite vent structures. The speaker with a breathable elastic wave module according to claim 1, wherein the first elastic sheet is made of polymer material or metal material. The speaker with a breathable elastic wave module according to claim 1, wherein the first elastic sheet is provided with a first breathable hole. The speaker with a breathable elastic wave module according to claim 9, wherein the first elastic sheet has a first ridged portion, and the first vent is located at the first ridged portion. The speaker with a breathable elastic wave module according to claim 1, wherein the second elastic sheet is provided with a second breathable hole. The speaker with a breathable elastic wave module according to claim 11, wherein the second elastic sheet has a second ridged portion, and the second vent is located at the second ridged portion. The speaker with a breathable elastic wave module according to claim 1, wherein the first elastic sheet is a breathable woven cloth, and the breathable elastic wave module further includes a fixing post disposed at the center of the first elastic sheet, the One end of the fixed column is connected to the bottom of the diaphragm, and the fixed The distance between the other end of the column and the surface of the air guide base is always greater than the distance between the magnet piece and the diaphragm. The speaker with a breathable elastic wave module according to claim 1, wherein the breathable elastic wave module is a cylinder or a corner column. The speaker with a breathable elastic wave module according to claim 1, wherein the air guiding base is provided with at least one air guiding channel, the horn base is provided with a communicating hole corresponding to the air guiding channel, and the hollow cylinder passes through the The air guiding channel and the communicating hole communicate with the outside. The speaker with a breathable elastic wave module according to claim 1, wherein the hollow cylinder is provided with an opening corresponding to the position of the air guide channel. The speaker with a breathable elastic wave module according to claim 1, wherein the air guide base has a breakout structure, and the hollow cylinder is disposed on the breakout structure so that the hollow cylinder and the air guide base are A gap is sandwiched between the bottoms. The speaker with a breathable elastic wave module according to claim 1, wherein the air guide base has a high portion and a bottom, and the hollow cylinder is disposed at the high portion so that the hollow cylinder and the bottom There is a gap in the sandwich.

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