Speaker with air-permeable elastic wave module

Abstract

The present invention discloses a loudspeaker with an air-permeable elastic wave module, comprising a vibration component, a magnetic return component, a speaker seat and an air-permeable elastic wave module, wherein the vibration component comprises a diaphragm and a voice coil, wherein the voice coil is connected to the bottom of the diaphragm, the magnetic return component comprises an air guide base and a magnet component, wherein the magnet component is arranged on the air guide base, the voice coil is floatingly arranged outside the magnet component, the magnet component has a through hole, the speaker seat is arranged on the vibration component and the magnetic return component, the air-permeable elastic wave module comprises a hollow cylinder and a first elastic sheet, wherein 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 part of the hollow cylinder and connected to the bottom of the diaphragm. The loudspeaker with an air-permeable elastic wave module of the present invention can utilize the air-permeable elastic wave module to reduce the polarization distortion of the voice coil and increase the output volume of the loudspeaker without increasing the height of the loudspeaker.

Description

Technical Field

[0001] The present invention relates to a loudspeaker, and more particularly to a loudspeaker with a breathable elastic wave module. Background Art

[0002] Since the volume of micro speakers is small and limited, although the volume can be increased by increasing the input voltage of the speaker, the amplitude of the voice coil will increase, making it difficult to maintain the stable vibration of the voice coil in the axial direction, thus causing sound distortion. Especially at low frequencies, once the voltage is increased, it is more likely to cause polarization distortion of the voice coil, and even cause the voice coil to hit the magnetic return component to produce abnormal sound.

[0003] Traditionally, to solve the polarization distortion of the voice coil under large amplitude, a spring must be used as a damper to absorb the displacement of the voice coil under large amplitude. However, the volume of micro speakers is small, and the use of traditional spring structures will increase the height of the micro speakers, making them unsuitable for use in thin notebook computers or tablet computers. In addition, the traditional spring 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 spring with other parts of the speaker, and the assembly operation is more complicated. Summary of the invention

[0004] The purpose of the present invention is to solve various problems of the conventional loudspeaker and provide a loudspeaker with a breathable elastic wave module.

[0005] To achieve the above-mentioned and other purposes, the present invention proposes a loudspeaker with an air-permeable elastic wave module, comprising: a vibration component, including a diaphragm and a voice coil, the voice coil being connected to the bottom of the diaphragm; a magnetic return component, including an air guide base and a magnet component, the magnet component being disposed on the air guide base, the voice coil being floatingly disposed outside the magnet component, and the magnet component having a through hole; a speaker seat, disposed on the vibration component and the magnetic return component; and an air-permeable elastic wave module, including a hollow cylinder and a first elastic sheet, the hollow cylinder being disposed in the through hole, the hollow cylinder being connected to the air guide base, the first elastic sheet being disposed in the hollow part of the hollow cylinder and connected to the bottom of the diaphragm.

[0006] Optionally, 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 to be disposed in the hollow part of the hollow column.

[0007] Optionally, a central area of ​​the second elastic sheet is raised to press against the bottom of the first elastic sheet.

[0008] Optionally, 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 component and the diaphragm.

[0009] Optionally, the air-permeable elastic wave module further includes a fixing column, one end of which is connected to the bottom of the first elastic sheet, and the other end of which is fixed to the second elastic sheet.

[0010] Optionally, 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 component and the diaphragm.

[0011] Optionally, the fixing column is a breathable structure.

[0012] Optionally, the first elastic sheet and the second elastic sheet have opposite air permeability structures.

[0013] Optionally, the first elastic sheet is made of polymer material or metal material.

[0014] Optionally, the first elastic sheet is provided with a first ventilation hole.

[0015] Optionally, the first elastic sheet has a first suspended edge ridge portion, and the first air vent is located in the first suspended edge ridge portion.

[0016] Optionally, the second elastic sheet is provided with a second ventilation hole.

[0017] Optionally, the second elastic sheet has a second suspended edge ridge portion, and the second air vent is located in the second suspended edge ridge portion.

[0018] Optionally, the first elastic sheet is a breathable woven cloth, and the breathable elastic wave module further includes a fixed column arranged at the center of the first elastic sheet, one end of the fixed column is connected to the bottom of the diaphragm, and 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.

[0019] Optionally, the air-permeable elastic wave module is a cylinder or a prism.

[0020] Optionally, the air guide base is provided with at least one air guide channel, the speaker seat is provided with a connecting hole corresponding to the air guide channel, and the hollow cylinder is connected to the outside via the air guide channel and the connecting hole.

[0021] Optionally, the hollow cylinder is provided with an opening at a position corresponding to the air guide channel.

[0022] Optionally, the air guide base has a step structure, and the hollow cylinder is arranged in the step structure, so that a gap is sandwiched between the hollow cylinder and the bottom of the air guide base.

[0023] Optionally, the air guide base has a high portion and a bottom portion, and the hollow column is disposed at the high portion, so that a gap is sandwiched between the hollow column and the bottom portion.

[0024] Thus, the speaker with the air-permeable damper module of the present invention can reduce the polarization distortion of the voice coil by using the air-permeable damper module without increasing the height of the speaker, thereby increasing the output volume of the speaker, and thus can be widely used in products such as thin notebook computers or tablet computers. In addition, the present invention further designs the damper into a modular structure, making the damper an independent modular unit, which is easier to assemble inside the magnetic return component of the speaker, reducing the difficulty of the assembly operation and improving the assembly yield and efficiency.

[0025] In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the invention. However, such description and drawings are only used to illustrate the present invention and are not intended to limit the scope of rights of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1A FIG. 4 is an exploded schematic diagram of a loudspeaker with an air-permeable damper module according to a first embodiment of the present invention.

[0027] Figure 1B FIG. 4 is an exploded schematic diagram of a ventilated elastic wave module according to the first embodiment of the present invention.

[0028] Figure 1C FIG. 4 is a three-dimensional cross-sectional diagram of a loudspeaker with an air-permeable elastic wave module according to a first embodiment of the present invention.

[0029] Figure 1D FIG. 4 is a cross-sectional diagram of a loudspeaker with an air-permeable damper module according to a first embodiment of the present invention.

[0030] Figure 2A FIG. 4 is an exploded schematic diagram of a loudspeaker with an air-permeable damper module according to a second embodiment of the present invention.

[0031] Figure 2B FIG. 4 is a schematic three-dimensional cross-sectional view of a loudspeaker with an air-permeable elastic wave module according to a second embodiment of the present invention.

[0032] Figure 3A FIG. 4 is an exploded schematic diagram of a speaker with an air-permeable damper module according to a third embodiment of the present invention.

[0033] Figure 3B FIG. 4 is a partial three-dimensional cross-sectional diagram of a loudspeaker with an air-permeable damper module according to a third embodiment of the present invention.

[0034] Figure 4 FIG. 4 is a cross-sectional view of a loudspeaker with an air-permeable damper module according to a fourth embodiment of the present invention.

[0035] Figure 5 FIG. 4 is a cross-sectional diagram of a loudspeaker with an air-permeable damper module according to a fifth embodiment of the present invention.

[0036] Figure 6 FIG. 4 is a cross-sectional diagram of a loudspeaker with an air-permeable elastic wave module according to a sixth embodiment of the present invention.

[0037] Figure 7 FIG. 4 is an exploded schematic diagram of a ventilated elastic wave module according to a seventh embodiment of the present invention.

[0038] Figure 8 FIG. 4 is a cross-sectional diagram of a loudspeaker with an air-permeable damper module according to an eighth embodiment of the present invention.

[0039] Fig. 9 FIG. 4 is an exploded schematic diagram of a ventilated elastic wave module according to a ninth embodiment of the present invention.

[0040] Fig. 10A FIG. 4 is an exploded schematic diagram of a loudspeaker with an air-permeable damper module according to a tenth embodiment of the present invention.

[0041] Fig. 10B FIG. 4 is an exploded schematic diagram of a ventilated elastic wave module according to a tenth embodiment of the present invention.

[0042] Reference numerals:

[0043] 100 Loudspeaker with air-permeable spring module

[0044] 100a Speaker with air-permeable spring module

[0045] 100b Speaker with air-permeable spring module

[0046] 100c Speaker with air-permeable spring module

[0047] 100d speaker with air-permeable elastic module

[0048] 100e Speaker with air-permeable spring module

[0049] 100g speaker with air-permeable elastic wave module

[0050] 100i Speaker with air spring module

[0051] 1 Vibration assembly

[0052] 11 Diaphragm

[0053] 12 Voice Coil

[0054] 2 Magnetic return assembly

[0055] 21 Gas guide base

[0056] 211 Gas Channel

[0057] 212 Break structure

[0058] 213 high part

[0059] 214 bottom

[0060] 21a Gas guide base

[0061] 22 Magnets

[0062] 221 Magnet

[0063] 223 Huasi

[0064] 23 Through hole

[0065] 23i Through hole

[0066] 3 Speaker seat

[0067] 31 Connecting hole

[0068] 4 Breathable elastic wave module

[0069] 4i breathable elastic wave module

[0070] 41 Hollow Cylinder

[0071] 411 Opening

[0072] 41b Hollow cylinder

[0073] 42 first elastic sheet

[0074] 421 First Ventilation Hole

[0075] 422 First hanging edge ridge

[0076] 421h breathable hole structure

[0077] 42f First elastic sheet

[0078] 42g first elastic sheet

[0079] 42h First elastic sheet

[0080] 43 Second elastic sheet

[0081] 431 Second Ventilation Hole

[0082] 432 Second hanging edge ridge

[0083] 431h Breathable hole structure

[0084] 43h Second elastic sheet

[0085] 44 Fixed column

[0086] 44e Fixed column DETAILED DESCRIPTION

[0087] In order to fully understand the present invention, the present invention is described in detail through the following specific embodiments and in conjunction with the attached drawings. Those skilled in the art can understand the purpose, characteristics and effects of the present invention from the contents disclosed in this specification. It should be noted that the present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. In addition, the drawings attached to the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the claims of the present invention. The description is as follows:

[0088] like Figures 1A to 1D As shown, the loudspeaker 100 with an air-permeable damper module according to the first embodiment of the present invention comprises: a vibration component 1 , a magnetic return component 2 , a speaker seat 3 and an air-permeable damper module 4 .

[0089] 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, thereby driving the diaphragm 11 to vibrate up and down to emit sound waves.

[0090] The magnetic return assembly 2 includes an air guide base 21 and a magnet 22 . The magnet 22 is disposed on the air guide base 21 . The voice coil 12 is floatingly disposed outside the magnet 22 . The magnet 22 has a through hole 23 in the central area.

[0091] The speaker seat 3 is disposed around the vibration component 1 and the magnetic return component 2 .

[0092] The air-permeable damper module 4 is disposed in the through hole 23. The air-permeable damper module 4 includes a hollow column 41 and a first elastic sheet 42. The hollow column 41 is disposed in the through hole 23 and communicates with the air guide base 21. The first elastic sheet 42 is disposed in the hollow of the hollow column 41 and connected to the central area of ​​the diaphragm 11.

[0093] Thus, the speaker 100 with the air-permeable damper module of the present invention can utilize the air-permeable damper module 4 to mitigate the polarization distortion of the voice coil 12 without increasing the height of the speaker, that is, the output volume of the speaker can be increased by increasing the input voltage to the speaker. In addition, the present invention further designs the damper into a modular structure, making the damper an independent modular unit, which is easier to assemble inside the magnetic return component of the speaker and improves the assembly yield and efficiency.

[0094] Furthermore, in this embodiment, the air-permeable damper module 4 is a cylinder, but the present invention is not limited thereto.

[0095] Furthermore, in this embodiment, the magnet member 22 includes a magnet 221 and a washer 223 . The washer 223 covers the upper surface of the magnet 221 to increase magnetic conductivity.

[0096] Furthermore, 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.

[0097] Furthermore, if Figure 1B As shown, in this embodiment, the first elastic sheet 42 is provided with a first vent hole 421, and the airflow generated by the vibration of the diaphragm 11 enters the hollow column 41 through the first vent hole 421. In addition, the first vent hole 421 can also increase the elasticity of the first elastic sheet 42.

[0098] Furthermore, in this embodiment, the air guide base 21 is provided with at least one air guide channel 211, the speaker base 3 is provided with a connecting hole 31 corresponding to the air guide channel 211, and the hollow cylinder 41 is connected to the outside through the air guide channel 211 and the connecting hole 31. Thus, the airflow in the air damper module 4 can be exchanged with the outside through the air guide channel 211 and the connecting hole 31, so that the pressure in the air damper module 4 remains stable.

[0099] Furthermore, if Figure 1A As shown, in this embodiment, the air guide base 21 has a step structure 212, and the hollow column 41 is disposed in the step structure 212, so that a gap is sandwiched between the hollow column 41 and the bottom 214 of the air guide base 21, so that the air flow in the air-permeable damper module 4 can enter the air guide channel 211 through the step, so that the pressure in the air-permeable damper module 4 remains stable.

[0100] Furthermore, if Figure 2A and Figure 2B As shown, in the speaker 100a with the air damper module of the second embodiment of the present invention, the air guide base 21a has a high portion 213 and a bottom portion 214, and the hollow column 41 is disposed at the high portion 213, so that a gap is sandwiched between the hollow column 41 and the bottom portion 214, so that the airflow in the air damper module 4 can enter the air guide channel 211 through the gap, so that the pressure in the air damper module 4 remains stable.

[0101] Furthermore, if Figure 3A and Figure 3B As shown, in the speaker 100b with an air damper module according to the third embodiment of the present invention, an opening 411 is provided in the hollow cylinder 41b at a position corresponding to the air guide channel 211, so that the air flow in the air damper module 4 can enter the air guide channel 211 through the opening 411, thereby keeping the pressure in the air damper module 4 stable.

[0102] Furthermore, if Figure 4As shown, in the speaker 100c with a breathable damper module according to the fourth embodiment of the present invention, the breathable damper module 4 further includes a second elastic sheet 43, a first elastic sheet 42 and a second elastic sheet 43 are arranged up and down and connected to each other to be disposed in the hollow of the hollow column 41, and the second elastic sheet 43 may also be provided with a second vent hole 431 to guide the flow and increase the elasticity. With the design of the double elastic sheet, the damping effect is greater than that of the single-layer elastic sheet.

[0103] Furthermore, if Figure 4 As shown, in the fourth embodiment of the present invention, the central area of ​​the second elastic sheet 43 is raised and connected to the bottom of the first elastic sheet 42 to provide support for the first elastic sheet 42. The top area of ​​the central area of ​​the second elastic sheet 43 can be greater than or equal to the bottom area of ​​the central area of ​​the first elastic sheet 42, so that the bottom of the central area of ​​the first elastic sheet 42 can be completely attached to the top of the central area of ​​the second elastic sheet 43. In addition, the first hanging edge ridge portion 422 of the first elastic sheet 42 and the second hanging edge ridge portion 432 of the second elastic sheet 43 can be oriented in opposite directions, different directions, or the same direction ( Figure 4 In the same direction as an example, the first suspended edge ridge portion 422 of the first elastic sheet 42 may be larger than the second suspended edge ridge portion 432 of the second elastic sheet 43. Furthermore, the first ventilation hole 421 is located at the first suspended edge ridge portion 422, and the second ventilation hole 431 is located at the second suspended edge ridge portion 432.

[0104] Furthermore, 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 22 and the diaphragm 11. Thus, the second elastic sheet 43 does not touch the air guide base 21 when vibrating to affect the sound performance.

[0105] Furthermore, if Figure 5 As shown, in the speaker 100d with the air damper module according to the fifth embodiment of the present invention, the air damper module 4 further includes a fixing column 44, one end of which is connected to the bottom of the first elastic sheet 42, and the other end of which is fixed to the second elastic sheet 43. The fixing column can be a light object, such as a high-density foam material or plastic, to provide good support for the first elastic sheet 42 and the second elastic sheet 43.

[0106] Furthermore, in the fifth embodiment of the present invention, the distance between the lowest point of the second elastic sheet 43 or the fixing column 44 and the surface of the air guide base 21 is always greater than the distance between the magnet 22 and the diaphragm 11. In this way, the second elastic sheet 43 or the fixing column 44 does not touch the air guide base 21 when vibrating to affect the sound performance.

[0107] Furthermore, if Figure 6As shown, in the speaker 100e with a breathable damper module of the sixth embodiment of the present invention, the fixing column 44e is a breathable structure, for example, in the shape of a hollow tube, and is a material that is light in weight but has a certain rigidity (such as PI). The first elastic sheet 42 and the second elastic sheet 43 are not limited to be breathable, and can be an integrally formed polymer material, including PET, PEN, PEI, PAR, PEEK, etc. Thus, even if the first elastic sheet 42 and the second elastic sheet 43 are impermeable materials or structures, the pressure in the breathable damper module 4 can still be connected to the air guide channel 211 through the breathable fixing column 44e to balance with the external pressure.

[0108] Furthermore, if Figure 7 As shown, 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 made by directly stamping a metal part, and its material is, for example, stainless steel or other materials. The metal first elastic sheet 42f can be combined with the hollow cylinder 41 of other materials, or can be integrally formed with the hollow cylinder 41, and the present invention is not limited thereto.

[0109] Furthermore, if Figure 8 As shown, in the speaker 100g with the air-permeable damper module of the eighth embodiment of the present invention, the first elastic sheet 42g is an air-permeable woven fabric, and the air-permeable damper module 4 further includes a fixing column 44, which is disposed at the center of the first elastic sheet 42g. One end of the fixing column 44 is connected to the bottom of the diaphragm 11, and the distance between the other end of the fixing column 44 and the surface of the air guide base 21 is always greater than the distance between the magnet 22 and the diaphragm 11. In this way, the fixing column 44 does not touch the air guide base 21 when vibrating to affect the sound performance.

[0110] Furthermore, if Fig. 9 As shown, 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. Thus, when manufacturing the first elastic sheet 42h and the second elastic sheet 43h, two identical components can be used to save manufacturing costs, and the opposite vent structures 421h and 431h can provide the fixing column 44 with sufficient supporting force.

[0111] Furthermore, if Fig. 10A and Fig. 10BAs shown, in the loudspeaker 100i with a breathable diaphragm module according to the tenth embodiment of the present invention, the breathable diaphragm module 4i is a corner column. In this embodiment, a rectangular column is taken as an example, and the corresponding through hole 23i is also a corresponding square hole. However, the present invention is not limited thereto. Thus, when there are space limitations in the terminal application product (tablet computer or notebook computer) and the loudspeaker needs to be placed at the corner position of the terminal application product, if the volume output of the loudspeaker is to be increased, the loudspeaker is often designed with a high aspect ratio in order to increase the sound-emitting area. Therefore, the loudspeaker commonly has an aspect ratio as high as 2:1, and even close to 4:1. For such a large aspect ratio loudspeaker, if a rectangular diaphragm is used, the length of the diaphragm can increase proportionally with the length of the loudspeaker. In addition, since the aspect ratio of the rectangular diaphragm is large, when designing the upper and lower elastic sheets of the rectangular diaphragm, the shape and length from the short axis to the middle column body are different from those from the long axis to the middle column body. If the rectangular middle column body itself is also designed with the same aspect ratio, the shape or length of the short axis and the long axis can also be the same or different. Furthermore, in this embodiment, the design of the upper and lower elastic sheets can be similar to the shape of "卍", and the upper and lower can be opposite or the same.

[0112] The present invention has been disclosed above with preferred embodiments. However, those skilled in the art should understand that the embodiments are only used to depict the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all equivalent changes and substitutions to the embodiments should be set to be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the content defined by the claims.

Claims

1. A speaker with a breathable elastic wave module, characterized in that: The speaker with the air-permeable elastic wave module comprises: A vibration assembly, comprising a diaphragm and a voice coil, wherein the voice coil is connected to the bottom of the diaphragm; The magnetic return assembly comprises an air guide base and a magnet component, wherein the magnet component is arranged on the air guide base, the voice coil is floatingly arranged outside the magnet component, and the magnet component has a through hole; A speaker seat, disposed on the vibration component and the magnetic return component; and The air-permeable damper module includes a hollow cylinder and a first elastic sheet. The hollow cylinder is arranged in the through hole, and the hollow cylinder is communicated with the air guide base. The first elastic sheet is arranged in the hollow part of the hollow cylinder and connected to the bottom of the diaphragm. The first elastic sheet is an air-permeable woven cloth. The air-permeable damper module also includes a fixing column arranged in the center of the first elastic sheet. One end of the fixing column is connected to the bottom of the diaphragm. The distance between the other end of the fixing column and the surface of the air guide base is always greater than the distance between the magnet and the diaphragm. The air guide base is provided with at least one air guide channel, and the speaker seat is provided with a connecting hole corresponding to the air guide channel. The hollow cylinder is connected to the outside world via the air guide channel and the connecting hole.

2. The speaker with air-permeable elastic wave module according to claim 1, characterized in that: The air-permeable elastic wave module is a cylinder or a prism.

3. The speaker with air-permeable elastic wave module according to claim 1, characterized in that: The hollow cylinder is provided with an opening at a position corresponding to the air guide channel.

4. The speaker with air-permeable elastic wave module according to claim 1, characterized in that: The air guide base has a step structure, and the hollow column is arranged in the step structure, so that a gap is sandwiched between the hollow column and the bottom of the air guide base.

5. The speaker with air-permeable elastic wave module according to claim 1, characterized in that: The air guide base has a high part and a bottom part, and the hollow column is arranged on the high part so that a gap is sandwiched between the hollow column and the bottom part.

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