Search

CN-122027952-A - Loudspeaker diaphragm and film coating method

CN122027952ACN 122027952 ACN122027952 ACN 122027952ACN-122027952-A

Abstract

The application provides a loudspeaker diaphragm and a film coating method, and belongs to the technical field of electronic products. The loudspeaker diaphragm comprises a diaphragm, wherein the surface of the diaphragm is covered with a titanium oxide film layer and a silicon oxide film layer, the titanium oxide film layer and the silicon oxide film layer are alternately arranged, and the alternating times are N, wherein N is a positive integer greater than 3. According to the loudspeaker diaphragm provided by the application, the titanium oxide film layers and the silicon oxide film layers are alternately deposited on the surface of the diaphragm, so that a multi-layer interference film layer structure is formed by alternately arranging the silicon oxide film layers and the titanium oxide film layers, various effects with gradual colors are displayed on the surface of the diaphragm, the intensity of the diaphragm can be increased, the visual effect is enhanced, the sounding effect of the loudspeaker can be enhanced, the sound is soft and clear, the distortion is reduced, the unnecessary vibration modes are effectively restrained, the sound is purer and accurate, the burr sense and the turbidity sense are reduced, and the hearing sense is smoother and natural.

Inventors

  • LUO MINGLIANG

Assignees

  • 东莞市漫步者汽车电器科技有限公司

Dates

Publication Date
20260512
Application Date
20260226

Claims (12)

  1. 1. A loudspeaker diaphragm, comprising: The vibrating diaphragm, the surface of vibrating diaphragm is covered with titanium oxide rete and silicon oxide rete, titanium oxide rete and silicon oxide rete set up alternately, and the alternating number of times is N, and wherein, N is the positive integer that is greater than 3.
  2. 2. The loudspeaker diaphragm of claim 1 where the thickness of the titanium oxide film is H1, where H1 has a value range of 60 nm≤H2≤85 nm, and the thickness of the silicon oxide film is H2, where H2 has a value range of 75 nm≤H2≤160.
  3. 3. The loudspeaker diaphragm of claim 2 where the thickness of the titanium oxide film layer H1 and the thickness of the silicon oxide film layer H2 satisfy the relationship of 750nm N (H1+H2)≤850 nm。
  4. 4. The loudspeaker diaphragm of claim 1 where at least two of the titanium oxide film layers are of different thickness; and/or the thickness of at least two layers of the silicon oxide film layers is different.
  5. 5. The loudspeaker diaphragm of claim 1 where the titanium oxide film layer has a titanium oxide content of not less than 99.99%; the content of silicon oxide in the silicon oxide film layer is not less than 99.99%.
  6. 6. A method for coating a loudspeaker diaphragm, characterized in that the method is applied to the loudspeaker diaphragm according to any one of claims 1 to 5, and comprises the steps of: Obtaining a loudspeaker diaphragm; Obtaining titanium oxide and silicon oxide; coating a film on the surface of the loudspeaker diaphragm by using titanium oxide to form a titanium oxide film layer; Coating a film on the surface of the titanium oxide film by using silicon oxide to form a silicon oxide film; The titanium oxide film plating and the silicon oxide film plating are alternately repeated for N times, wherein N is a positive integer greater than 3.
  7. 7. The method for coating a loudspeaker diaphragm according to claim 6, wherein the thickness of the titanium oxide film layer is H1, and the value range of H1 is 60nm or less and H1 or less and is 85 or less nm; The thickness of the silicon oxide film layer is H2, wherein the value range of H2 is 75 nm-160 nm.
  8. 8. The method for coating a loudspeaker diaphragm according to claim 7, wherein the thickness H1 of the titanium oxide film layer and the thickness H2 of the silicon oxide film layer satisfy the relation, and N is 750 nm≤N (H1+H2)≤850 nm。
  9. 9. The method for coating a loudspeaker diaphragm according to claim 6, wherein at least two of the titanium oxide film layers have different thicknesses; and/or the thickness of at least two layers of the silicon oxide film layers is different.
  10. 10. The method of claim 6, wherein the step of forming the titanium oxide film layer comprises placing the speaker diaphragm in a coating chamber of a coating apparatus, cleaning foreign matters on the surface of the speaker diaphragm, and evacuating the coating chamber.
  11. 11. The method according to claim 10, wherein the forming of the titanium oxide film layer is preceded by evaporating titanium oxide into a gaseous state, flowing into a coating chamber, and depositing the gaseous state on the surface of the loudspeaker diaphragm to form the titanium oxide film layer.
  12. 12. The method of claim 10, wherein the forming the titanium oxide film comprises evaporating silicon oxide into a gaseous state, flowing into a coating chamber, and depositing the gaseous silicon oxide film on the surface of the loudspeaker diaphragm to form the silicon oxide film.

Description

Loudspeaker diaphragm and film coating method Technical Field The application relates to the technical field of electronic products, in particular to a loudspeaker diaphragm and a film coating method. Background ‌ The loudspeaker diaphragm is a core component of electroacoustic conversion, sound waves are generated by vibrating air, and the quality and structural design of the sound waves directly influence the tone quality performance ‌. The conventional loudspeaker diaphragm is a single-color effect and does not have color gradual change characteristics, the conventional aluminum diaphragm is a metal material with high density, the surface is smooth and compact, the sound absorption capacity is limited, particularly in a low-frequency range, the conventional aluminum diaphragm is difficult to effectively absorb sound wave energy and can cause strong reflectivity of low-frequency sound, rich harmonic waves and layering can not be generated, the sound lacks diffusivity due to strong reflectivity, uneven distribution of a sound field is easy to form, and the monotonous feeling of the sound is aggravated. Disclosure of Invention Therefore, the application aims to overcome the defects in the prior art and provide a loudspeaker diaphragm and a film coating method. In a first aspect, the present application provides a loudspeaker diaphragm comprising: The vibrating diaphragm, the surface of vibrating diaphragm is covered with titanium oxide rete and silicon oxide rete, titanium oxide rete and silicon oxide rete set up alternately, and the alternating number of times is N, and wherein, N is the positive integer that is greater than 3. In some embodiments, the thickness of the titanium oxide film layer is H1, wherein the value range of H1 is 60 nm≤H2≤85 nm; The thickness of the silicon oxide film layer is H2, wherein the value range of H2 is 75 nm-160 nm. In some embodiments, the thickness H1 of the titanium oxide film layer and the thickness H2 of the silicon oxide film layer satisfy the relation of 750nm < N(H1+H2)≤850 nm。 In some embodiments, at least two of the titanium oxide film layers are different in thickness; and/or the thickness of at least two layers of the silicon oxide film layers is different. In some embodiments, the titanium oxide film layer has a titanium oxide content of not less than 99.99%; the content of silicon oxide in the silicon oxide film layer is not less than 99.99%. In a second aspect, the present application provides a method for coating a loudspeaker diaphragm, which is applied to the loudspeaker diaphragm, and includes the steps of: Obtaining a loudspeaker diaphragm; Obtaining titanium oxide and silicon oxide; coating a film on the surface of the loudspeaker diaphragm by using titanium oxide to form a titanium oxide film layer; Coating a film on the surface of the titanium oxide film by using silicon oxide to form a silicon oxide film; The titanium oxide film plating and the silicon oxide film plating are alternately repeated for N times, wherein N is a positive integer greater than 3. In some embodiments, the thickness of the titanium oxide film layer is H1, wherein the value range of H1 is 60 nm≤H2≤85 nm; The thickness of the silicon oxide film layer is H2, wherein the value range of H2 is 75 nm-160 nm. In some embodiments, the thickness H1 of the titanium oxide film layer and the thickness H2 of the silicon oxide film layer satisfy the relation of 750nm < N(H1+H2)≤850 nm。 In some embodiments, at least two of the titanium oxide film layers are different in thickness; and/or the thickness of at least two layers of the silicon oxide film layers is different. In some embodiments, the method includes placing the loudspeaker diaphragm in a coating chamber of a coating apparatus, cleaning foreign objects from the surface of the loudspeaker diaphragm, and evacuating the coating chamber. In some embodiments, the method comprises the steps of evaporating titanium oxide into a gaseous state, flowing the gaseous state into a coating bin, and depositing the gaseous state on the surface of a loudspeaker diaphragm to form the titanium oxide film layer. In some embodiments, the method comprises the steps of evaporating silicon oxide into a gaseous state, flowing the gaseous state into a coating bin, and depositing the gaseous state on the surface of a loudspeaker diaphragm to form the silicon oxide film layer. The embodiment of the application has the advantages that the titanium oxide film layers and the silicon oxide film layers are alternately arranged on the surface of the vibrating diaphragm, so that a multi-layer interference film layer structure is formed by alternately arranging the silicon oxide film layers and the titanium oxide film layers, various effects with gradual colors are displayed on the surface of the vibrating diaphragm, the strength of the vibrating diaphragm can be increased, the visual effect is enhanced, the sound producing effect of the loudspeaker can be enhanced, th