Loudspeaker vibrating reed capable of reducing friction noise
By using noise reduction polymer or noise reduction particles to cover or mix the composite polymer during the manufacturing process of the speaker vibrator, the friction noise problem of the speaker vibrator during vibration is solved, which improves the sound quality and extends the service life of the wire.
Patent Information
- Application Number
- CN202422152558.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-03
AI Technical Summary
When the existing speaker vibrator vibrating, friction noise occurs due to the friction between the cured polymer and the wire and the cured structure, which affects the sound quality, and the wire is prone to fatigue and breakage.
During the manufacturing process of the horn vibrator, noise reduction polymer or noise reduction particles are used to cover the outer surface of the cured structure, or mixed with the cured polymer to form a composite polymer to reduce friction noise characteristics.
It effectively reduces the friction noise of the speaker vibrator when vibrating, prevents friction noise between the wire and the cured structure, improves the sound quality and extends the service life of the wire.
Smart Images
Figure CN223194828U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a loudspeaker vibration plate, in particular to a loudspeaker vibration plate capable of reducing friction noise. Background Art
[0002] Typical dynamic speakers produce sound by exploiting the principle that the reaction force of a fixed magnetic field causes another magnetic field to move in the opposite direction (i.e., opposites attract, likes repel). Specifically, the AC power generated by the power amplifier is transmitted to the voice coil via wires, changing the polarity of the magnetic field and causing the voice coil to generate a reaction force relative to the fixed magnetic field generated by the magnetic return device. Positive pulses cause the diaphragm to move outward relative to the magnet, while negative pulses cause the diaphragm to move inward relative to the magnet. When the voice coil pushes the diaphragm back and forth, the diaphragm pushes against the air, causing changes in air pressure to form sound waves. The elastic wave is used to maintain the voice coil in the correct position within the gap between the magnet core and ensure that the voice coil reciprocates along its axis when subjected to force. The suspension is provided between the diaphragm and the outer frame to support the diaphragm.
[0003] Many of the non-metallic parts within a typical speaker are made of a base material. This is because the specially treated base material possesses the appropriate elasticity and strength to provide the required functional requirements for speaker operation. Examples include the diaphragm, damper, surround, and drum paper in small speakers. These non-metallic parts are collectively referred to as speaker vibrators.
[0004] The existing method for manufacturing a speaker diaphragm includes the following steps: immersing a substrate in a curing polymer, causing the curing polymer to adhere to the substrate. The substrate is woven from multiple warp and weft yarns, and the curing polymer has curing properties; drying the substrate to form a curing structure, which covers the outer surface of the substrate; applying heat and pressure to the substrate to form a speaker diaphragm; and separating the speaker diaphragm from the substrate. The speaker diaphragm includes a main body, which is woven from multiple warp and weft yarns, and a curing structure formed by drying the curing polymer, which covers the outer surface of the main body and has curing properties.
[0005] Because the base material is usually soft cloth, the resulting speaker diaphragm is also soft. The solidified structure increases the hardness of the speaker diaphragm, allowing it to vibrate when the voice coil is turned.
[0006] However, the curing properties of cured polymers make them relatively rigid. When the speaker diaphragm vibrates, the hardened polymer rubs against itself, generating noise that affects the speaker's sound quality. Furthermore, in typical speakers, the wires are suspended in the air, unsupported by anything. Therefore, the wires bear the vibration force transmitted by the voice coil alone. As a result, after a period of rapid and frequent voice coil movement, the wires are prone to fatigue and breakage.
[0007] To solve the above problems, the existing speaker vibration plate manufacturing method further includes the following step between the substrate drying step and the heating and pressing step, or between the heating and pressing step and the separation step, or after the separation step: arranging a wire on the cured structure.
[0008] However, when the speaker diaphragm vibrates, the wire will rub against the hard solidified polymer and generate noise, affecting the sound quality of the speaker. Utility Model Content
[0009] The main purpose of the utility model is to provide a speaker vibration plate that can reduce friction noise, and can prevent the solidified structure or the composite structure from generating noise due to friction.
[0010] The main purpose of the utility model is to provide a speaker vibration plate capable of reducing friction noise, so as to prevent the noise generated by the friction between the wire and the solidified structure or the composite structure.
[0011] To achieve the aforementioned objectives, the present invention provides a speaker vibration plate capable of reducing frictional noise, comprising a main body, a curing structure, and a noise-reducing structure. The main body is woven from a plurality of warp yarns and a plurality of weft yarns. The curing structure is formed by drying a curing polymer, covers the outer surface of the main body, and has curing properties. The noise-reducing structure is formed by drying a noise-reducing polymer, covers the outer surface of the curing structure, and has frictional noise reduction properties.
[0012] In some embodiments, the speaker vibration plate capable of reducing friction noise further includes at least one wire, and the at least one wire is disposed on the outer surface of the noise reduction structure.
[0013] The utility model has the effect that the noise reduction structure can play the characteristic of reducing friction noise and prevent the solidified structure from generating friction noise.
[0014] Furthermore, the noise reduction structure can play a role in reducing friction noise, thereby preventing the conductive wire and the solidified structure from rubbing against each other and generating friction noise.
[0015] To achieve the aforementioned objectives, the present invention provides a speaker vibration plate capable of reducing frictional noise, comprising a main body and a composite structure. The main body is woven from a plurality of warp yarns and a plurality of weft yarns. The composite structure is formed by drying a composite polymer and covers the outer surface of the main body. The composite polymer is composed of a solidifying polymer and a noise-reducing polymer. The solidifying polymer has a solidifying property, and the noise-reducing polymer has a frictional noise reducing property.
[0016] In some embodiments, the speaker vibration plate capable of reducing friction noise further includes at least one wire, and the at least one wire is disposed on the outer surface of the composite structure.
[0017] In some embodiments, the noise reduction polymer is a plurality of noise reduction particles and is uniformly distributed in the solidified polymer to form the composite polymer.
[0018] The utility model has the effect that the composite structure can exert the friction noise reduction property of the noise reduction polymer, thereby preventing the composite structure itself from rubbing and generating friction noise.
[0019] Furthermore, the composite structure can utilize the friction noise reduction property of the noise reduction polymer to prevent the friction noise generated by the conductive wires and the composite structure.
[0020] Furthermore, because the noise reducing particles are evenly distributed throughout the cured polymer, the frictional noise reducing properties of the composite structure are more uniform. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a flow chart of the first embodiment of the method of the present utility model.
[0022] Figure 2 Schematic diagram of the first embodiment of the method of the present invention.
[0023] Figure 3 It is a three-dimensional diagram of the first embodiment of the speaker vibration plate of the present utility model.
[0024] Figure 4 yes Figure 3 A cross-sectional view taken along line IV-IV.
[0025] Figure 5 It is a flow chart of the second embodiment of the method of the present utility model.
[0026] Figure 6 Schematic diagram of a second embodiment of the method of the present invention.
[0027] Figure 7 It is a three-dimensional diagram of a second embodiment of the speaker vibration plate of the present invention.
[0028] Figure 8 yes Figure 7 A cross-sectional view taken along line VIII-VIII.
[0029] Figure 9 It is a flow chart of the third embodiment of the method of the present utility model.
[0030] Figure 10 1 is a schematic diagram of steps S10B to S40B of the third embodiment of the method of the present invention.
[0031] Figure 11 It is a schematic diagram of steps S50B to S70B of the third embodiment of the method of the present invention.
[0032] Figure 12 It is a three-dimensional diagram of a third embodiment of the speaker vibration plate of the present utility model.
[0033] Figure 13 yes Figure 12 A cross-sectional view taken along line XIII-XIII.
[0034] Figure 14 It is a flow chart of the fourth embodiment of the method of the present utility model.
[0035] Figure 15 Schematic diagram of a fourth embodiment of the method of the present invention.
[0036] Figure 16 It is a three-dimensional diagram of a fourth embodiment of the speaker vibration plate of the present invention.
[0037] Figure 17 yes Figure 16 Cross-sectional view along line XVII-XVII.
[0038]
Explanation of symbols
[0039] 10: Base material
[0040] 101: Warp
[0041] 102: Weft
[0042] 11:Ontology
[0043] 20: Cured polymer
[0044] 21: Solidified structure
[0045] 30: Noise reduction polymer
[0046] 31: Noise reduction structure
[0047] 40: Composite polymer
[0048] 41: Composite structure
[0049] 50: Wire
[0050] 100,100A,100B,100C: speaker vibration plate
[0051] S100~S150: Steps
[0052] S200~S230: Steps
[0053] S300~S360: Steps
[0054] S400~S440: Steps DETAILED DESCRIPTION
[0055] The following describes the embodiments of the present invention in more detail with reference to the accompanying drawings and element symbols, so that those skilled in the art can implement the invention accordingly after studying the specification.
[0056] Figure 1 It is a flow chart of the first embodiment of the method of the present utility model. Figure 2 Schematic diagram of the first embodiment of the method of the present utility model. Figure 1 and Figure 2 As shown, the present invention provides a method for manufacturing a loudspeaker vibration plate capable of reducing friction noise, comprising the following steps: Step S100, soaking a substrate 10 in a solidifying polymer 20 so that the solidifying polymer 20 adheres to the substrate 10, the substrate 10 being woven from a plurality of warp yarns 101 and a plurality of weft yarns 102 (see Figure 4 ), the cured polymer 20 has a curing property; Step S110, drying the substrate 10 so that the cured polymer 20 is dried to form a cured structure 21 (see Figure 4 ), the solidified structure 21 covers the outer surface of the substrate 10; step S120, the substrate 10 is immersed in a noise reduction polymer 30, so that the noise reduction polymer 30 is attached to the solidified polymer 20, and the noise reduction polymer 30 has the characteristic of reducing friction noise; step S130, the substrate 10 is dried so that the noise reduction polymer 30 is dried to form a noise reduction structure 31 (see Figure 4 ), the noise reduction structure 31 covers the outer surface of the cured polymer 20; step S140, heating and pressurizing the substrate 10 to form a speaker vibration plate 100; and step S150, separating the speaker vibration plate 100 from the substrate 10.
[0057] Figure 3 It is a three-dimensional diagram of the first embodiment of the speaker vibration plate 100 of the present invention. Figure 4 yes Figure 3 The cross-sectional view of line IV-IV. Figure 3 and Figure 4As shown, the present invention provides a speaker vibration plate 100 capable of reducing friction noise, comprising a main body 11, a curing structure 21, and a noise reduction structure 31. The main body 11 is woven from a plurality of warp yarns 101 and a plurality of weft yarns 102. The curing structure 21 is formed by drying a curing polymer 20, covers the outer surface of the main body 11, and has curing properties. The noise reduction structure 31 is formed by drying a noise reduction polymer 30, covers the outer surface of the curing structure 21, and has the property of reducing friction noise.
[0058] Thus, the curing structure 21 utilizes the curing properties of the curing polymer to solidify the body 11, increasing its hardness. This allows the speaker diaphragm 100 of the present invention to vibrate in response to the voice coil. The noise reduction structure 31 also reduces frictional noise, preventing the curing structure 21 from generating frictional noise.
[0059] Figure 5 It is a flow chart of the second embodiment of the method of the present utility model. Figure 6 Schematic diagram of the second embodiment of the method of the present utility model. Figure 5 and Figure 6 As shown, the present invention provides a method for manufacturing a loudspeaker vibration plate capable of reducing friction noise, comprising the following steps: Step S200, mixing a curing polymer 20 with a noise reduction polymer 30 to prepare a composite polymer 40, and immersing a substrate 10 in the composite polymer 40 so that the composite polymer 40 adheres to the substrate 10, the curing polymer 20 has a curing property, and the noise reduction polymer 30 has a friction noise reduction property; Step S210, drying the substrate 10 so that the composite polymer 40 is dried to form a composite structure 41 (see Figure 8 ), the composite structure 41 covers the outer surface of the substrate 10; step S220, heating and pressing the substrate 10 to form a speaker vibration plate 100A; and step S230, separating the speaker vibration plate 100A from the substrate 10.
[0060] In some embodiments, step S200 further includes: the noise reduction polymer 30 is a plurality of noise reduction particles and is uniformly distributed in the solidified polymer 20 to prepare a composite polymer 40 .
[0061] Figure 7 It is a perspective view of a second embodiment of a speaker diaphragm 100A of the present invention. Figure 8 yes Figure 7 The cross-sectional view of line VIII-VIII. Figure 7 and Figure 8As shown, the present invention provides a speaker diaphragm 100A capable of reducing frictional noise, comprising a main body 11 and a composite structure 41. Composite structure 41 is formed by drying a composite polymer 40 and covers the outer surface of main body 11. Composite polymer 40 is composed of a solidifying polymer 20 and a noise-reducing polymer 30. Solidifying polymer 20 has a solidifying property, while noise-reducing polymer 30 has a frictional noise reducing property.
[0062] In some embodiments, the noise reduction polymer 30 is a plurality of noise reduction particles and is uniformly distributed in the solidified polymer 20 to form the composite polymer 40 .
[0063] Thus, the composite structure 41 leverages the curing properties of the curable polymer 20 to solidify the body 11 and increase its rigidity, enabling the speaker diaphragm 100A of the present invention to vibrate in response to the voice coil. The composite structure 41 also leverages the frictional noise reduction properties of the noise-reducing polymer 30 to prevent frictional noise from being generated by the composite structure 41.
[0064] Furthermore, because the noise reduction particles are evenly distributed in the cured polymer 20 , the friction noise reduction properties of the composite structure 41 are more uniform.
[0065] Figure 9 It is a flow chart of the third embodiment of the method of the present utility model. Figure 10 3 is a schematic diagram of steps S300 to S330 of the third embodiment of the method of the present invention. Figure 11 Schematic diagram of step S340 to step S360 of the third embodiment of the method of the present invention. Figure 9 、 Figure 10 and Figure 11 As shown, in terms of method, steps S300 to S330 of the third embodiment are equivalent to steps S100 to S130 of the first embodiment, and steps S350 to S360 of the third embodiment are equivalent to steps S140 to S150 of the first embodiment. The difference between the third embodiment and the first embodiment is that the following steps are further included between step S330 and step S350: step S340, arranging multiple wires 50 on the outer surface of the noise reduction structure 31.
[0066] In some embodiments, step S340 is further included between step S350 and step S360, or after step S360.
[0067] Figure 12 It is a perspective view of a third embodiment of a speaker diaphragm 100B of the present invention. Figure 13 yes Figure 12 The cross-sectional view of line XIII-XIII. Figure 12 and Figure 13 As shown, in terms of structure, the difference between the third embodiment and the first embodiment is that the speaker diaphragm 100B of the present invention further includes a plurality of wires 50 , and the wires 50 are disposed on the outer surface of the noise reduction structure 31 .
[0068] Thereby, the noise reduction structure 31 can exert the characteristic of reducing friction noise, and prevent the conductive wires 50 and the solidified structure 21 from rubbing against each other and generating friction noise.
[0069] Figure 14 It is a flow chart of the fourth embodiment of the method of the present utility model. Figure 15 Schematic diagram of the fourth embodiment of the method of the present utility model. Figure 14 and Figure 15 As shown, in terms of method, steps S400 to S410 of the fourth embodiment are equivalent to steps S200 to S210 of the second embodiment, and steps S430 to S440 of the fourth embodiment are equivalent to steps S220 to S230 of the second embodiment. The difference between the fourth embodiment and the second embodiment is that the following steps are further included between step S410 and step S430: step S420, arranging multiple wires 50 on the outer surface of the composite structure 41.
[0070] In some embodiments, step S420 is further included between step S430 and step S440, or after step S440.
[0071] In some embodiments, step S400 further includes: the noise reduction polymer 30 is a plurality of noise reduction particles and is uniformly distributed in the solidified polymer to prepare a composite polymer 40 .
[0072] Figure 16 It is a perspective view of a speaker diaphragm 100C according to a fourth embodiment of the present invention. Figure 17 yes Figure 16 The cross-sectional view of the line XVII-XVII. Figure 16 and Figure 17 As shown, in terms of structure, the fourth embodiment differs from the second embodiment in that the speaker diaphragm 100C of the present invention further includes a plurality of wires 50 , which are disposed on the outer surface of the composite structure 41 .
[0073] Thereby, the composite structure 41 can take advantage of the friction noise reduction property of the noise reduction polymer 30 to prevent the friction noise generated between the wires 50 and the composite structure 41 .
[0074] In some embodiments, the curing polymer 20 is a natural resin or a synthetic resin, and the curing properties of the curing polymer 20 are the same as those of the natural resin or the synthetic resin. Preferably, the synthetic resin includes phenolic resin, epoxy resin, polyester resin, or a combination thereof.
[0075] In some embodiments, the noise-reducing polymer 30 is made of natural rubber, synthetic rubber, silicone, or plastic. The frictional noise reduction properties of the noise-reducing polymer 30 are the same as those of the natural rubber, synthetic rubber, or silicone. These frictional noise reduction properties mean that the noise-reducing polymer 30 can absorb mechanical vibrations from the cured polymer, composite polymer 40, or wire 50, reducing their propagation and lowering noise levels. Preferably, the synthetic rubber includes ethylene-propylene rubber (EPR), chloroprene rubber (CR), styrene-butadiene rubber (SBR), ethylene-butadiene rubber (EPDM), chlorosulfonated polyethylene rubber (CSM), fluororubber (FKM), nitrile butadiene rubber (NBR), polyurethane rubber (PU), or a combination thereof. Preferably, the plastic includes polyethylene foam, polystyrene foam, polyurethane foam, or a combination thereof.
[0076] In some embodiments, the noise reduction particles are particles of natural rubber, synthetic rubber, silicone, or plastic.
[0077] The above description is only used to explain the preferred embodiment of the present invention and is not intended to limit the present invention in any form. Therefore, any modifications or changes made to the present invention under the same spirit of the present invention should still be included in the scope of protection intended by the present invention.
Claims
1. A speaker vibration plate capable of reducing friction noise, characterized in that: include: The main body is woven from multiple warp yarns and multiple weft yarns; a solidified structure formed by drying a solidified polymer, covering the outer surface of the body and having solidification properties; and The noise reduction structure is formed by drying the noise reduction polymer, covers the outer surface of the cured structure, and has the characteristic of reducing friction noise.
2. The speaker vibration plate capable of reducing friction noise according to claim 1, characterized in that: It further includes at least one wire, and the at least one wire is arranged on the outer surface of the noise reduction structure.
3. A speaker vibration plate capable of reducing friction noise, characterized in that: include: The main body is woven from multiple warp yarns and multiple weft yarns; as well as A composite structure formed by drying a composite polymer and covering the outer surface of the body; The composite polymer consists of a curing polymer and a noise reduction polymer. The curing polymer has a curing property, and the noise reduction polymer has a friction noise reduction property.
4. The speaker vibration plate capable of reducing friction noise according to claim 3, characterized in that: The method further includes at least one conductive wire, wherein the at least one conductive wire is disposed on an outer surface of the composite structure.
5. The speaker vibration plate capable of reducing friction noise according to claim 3 or 4, characterized in that: The noise reduction polymer is a plurality of noise reduction particles and is uniformly distributed in the solidified polymer to form the composite polymer.