阅读说明：本技术 一种扬声器音盆及其制备方法、扬声器 (Loudspeaker cone, manufacturing method thereof and loudspeaker ) 是由 郑占磊 于 2019-09-20 设计创作，主要内容包括：本发明提供了一种扬声器音盆及其制备方法、扬声器。所述制备方法包括：执行打浆工艺,以得到纸浆；执行捞浆工艺,以得到初始音盆；对所述初始音盆进行烘烤固化,以得到所述扬声器音盆；其中,在制备所述扬声器音盆的过程中加入刚性调节物质,所述刚性调节物质包括镁锂合金和碳化硅中的至少一种。掺入刚性调节物质后,增强了纸浆的杨氏模量,加上纸浆已有的高内阻,可以有效解决声染色的问题,使声音听起来更清晰,自然,也拓宽了高频。(The invention provides a loudspeaker cone, a preparation method thereof and a loudspeaker. The preparation method comprises the following steps: performing a pulping process to obtain pulp; executing a slurry fishing process to obtain an initial cone; baking and curing the initial cone to obtain the loudspeaker cone; wherein, a rigidity adjusting substance is added in the process of preparing the loudspeaker cone, and the rigidity adjusting substance comprises at least one of magnesium-lithium alloy and silicon carbide. After the rigidity regulating substance is doped, the Young modulus of the paper pulp is enhanced, and the existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound can be heard more clearly and naturally, and the high frequency is widened.)

1. A preparation method of a loudspeaker cone is characterized by comprising the following steps:

performing a pulping process to obtain pulp;

executing a slurry fishing process to obtain an initial cone;

baking and curing the initial cone to obtain the loudspeaker cone;

wherein, a rigidity adjusting substance is added in the process of preparing the loudspeaker cone, and the rigidity adjusting substance comprises at least one of magnesium-lithium alloy and silicon carbide.

2. The method according to claim 1, wherein the mass ratio of the added magnesium-lithium alloy to the pulp is 10% to 15%, or the mass ratio of the added silicon carbide to the pulp is 10% to 30%.

3. The method of claim 1, wherein the step of adding a rigidity-adjusting substance during the step of preparing the speaker cone comprises:

in the beating process, the rigidity-adjusting substance is added to the pulp to obtain pulp containing the rigidity-adjusting substance.

4. The method of claim 1, wherein the step of adding a rigidity-adjusting substance during the step of preparing the speaker cone comprises:

coating the rigidity adjusting substance on the outer surface of the initial cone;

extruding the initial cone coated with the rigidity adjusting substance; or

Executing a slurry fishing process to respectively obtain a first initial cone and a second initial cone, wherein the inner diameter of the second initial cone is larger than that of the first initial cone;

coating the outer surface of the first initial cone with the rigidity adjusting substance;

and putting the first initial cone into the second initial cone to compound the first initial sound and the second initial cone into a whole.

5. The method of claim 1, further comprising a trimming process and an inspection process.

6. A speaker cone, the speaker cone comprising:

the sound cone comprises a sound cone body and a rigid adjusting substance, wherein the sound cone body is used for making sound through vibration of the sound cone body, and the rigid adjusting substance comprises at least one of magnesium-lithium alloy and silicon carbide.

7. The loudspeaker cone of claim 6 wherein the rigidity-adjusting substance is uniformly doped in the cone body.

8. The speaker cone as claimed in claim 6, wherein the rigidity-adjusting substance is coated and fixed on an outer surface of the cone body.

9. The speaker cone according to claim 8, wherein the cone body comprises a first cone body and a second cone body integrated with each other, wherein a layer of the rigidity-adjustment substance is provided between the first cone body and the second cone body.

10. A loudspeaker comprising a loudspeaker cone as claimed in any one of claims 6 to 9.

Technical Field

The invention relates to the technical field of sound equipment, in particular to a loudspeaker cone, a manufacturing method of the loudspeaker cone and a loudspeaker.

Background

A loudspeaker is a transducer device that converts an electrical signal into an acoustic signal. When different electronic energy is transmitted to the voice coil, the voice coil generates magnetic field interaction between the energy and the magnet, the interaction causes vibration of the cone, the electronic energy changes at any time, the loudspeaker moves forwards or backwards, and therefore the cone of the loudspeaker moves along with the movement, and the density degree of air is changed by the actions to generate sound.

As a sound production structure, a speaker is widely used in a mobile phone, a television, a sound box, or other structures, however, as the living standard of people increases, the functional quality of the speaker is more and more required.

The conventional loudspeaker is characterized in that a cone generally adopts paper as the cone, the inherent characteristics and the defects of the loudspeaker are correspondingly brought by the characteristics and the defects of the paper, for example, the paper has the advantages of large internal damping and small density, but has the defect of small elastic modulus, the cone is subjected to sound dyeing when vibrating, the sound is turbid in a specific frequency band, the tone quality is reduced, and meanwhile, the expansion of high frequency is severely limited.

Therefore, how to solve the above problems becomes a key to improve the performance of the speaker.

Disclosure of Invention

Aiming at the problems that sound is turbid in a specific frequency band due to sound dyeing in the prior art, the tone quality is reduced, and meanwhile, the expansion of high frequency is severely limited, the invention provides a preparation method of a loudspeaker cone on one hand, which comprises the following steps:

performing a pulping process to obtain pulp;

executing a slurry fishing process to obtain an initial cone;

baking and curing the initial cone to obtain the loudspeaker cone;

wherein, a rigidity adjusting substance is added in the process of preparing the loudspeaker cone, and the rigidity adjusting substance comprises at least one of magnesium-lithium alloy and silicon carbide.

Optionally, the mass ratio of the added magnesium-lithium alloy to the pulp is 10% -15%, or the mass ratio of the added silicon carbide to the pulp is 10% -30%.

Optionally, the rigidity adjusting substance is the silicon carbide, and the method for adding the rigidity adjusting substance in the process of preparing the loudspeaker cone comprises the following steps:

in the beating process, the rigidity-adjusting substance is added to the pulp to obtain pulp containing the rigidity-adjusting substance.

Optionally, the rigidity adjusting substance is the magnesium-lithium alloy, and the method for adding the rigidity adjusting substance in the process of preparing the loudspeaker cone comprises the following steps:

coating the rigidity adjusting substance on the outer surface of the initial cone;

extruding the initial cone coated with the rigidity adjusting substance; or

Executing a slurry fishing process to respectively obtain a first initial cone and a second initial cone, wherein the inner diameter of the second initial cone is larger than that of the first initial cone;

coating the outer surface of the first initial cone with the rigidity adjusting substance;

and putting the first initial cone into the second initial cone to compound the first initial sound and the second initial cone into a whole.

Optionally, the preparation method further comprises an edge cutting process and an inspection process.

A second aspect of the invention provides a loudspeaker cone, the loudspeaker cone comprising:

the sound cone comprises a sound cone body and a rigid adjusting substance, wherein the sound cone body is used for making sound through vibration of the sound cone body, and the rigid adjusting substance comprises at least one of magnesium-lithium alloy and silicon carbide.

Optionally, the rigidity adjusting substance is uniformly doped in the cone body.

Optionally, the rigidity-adjusting substance is fixed on the outer surface of the cone main body in a coating manner.

Optionally, the cone body includes a first cone body and a second cone body integrated with each other, wherein a layer of the rigidity-adjusting substance is disposed between the first cone body and the second cone body.

A third aspect of the invention provides a loudspeaker comprising a loudspeaker cone as described above.

After the rigidity adjusting substance is added into the loudspeaker cone, the loudspeaker cone has good Young modulus and smaller density, the density of the rigidity adjusting substance mixed into the paper pulp can be adjusted according to the performance requirement, so that the purposes of higher Young modulus and lighter density are achieved, and the rigidity adjusting substance comprises at least one of magnesium-lithium alloy and silicon carbide. After the rigidity regulating substance is doped, the Young modulus of the paper pulp is enhanced, and the existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound can be heard more clearly and naturally, and the high frequency is widened. By adding the rigidity regulating substance, the price of the loudspeaker cone can be reduced, and the advantages of high internal resistance and low density of paper pulp are combined.

The loudspeaker comprising the loudspeaker cone also has the advantages, the problem of sound dyeing can be effectively solved, sound can be heard more clearly and naturally, and high frequency is widened.

Drawings

The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In the drawings:

fig. 1 shows a schematic flow chart of the speaker cone manufacturing method in an embodiment of the present invention;

fig. 2 shows a schematic block diagram of the loudspeaker cone manufacturing method in an embodiment of the invention;

FIG. 3 is a schematic block diagram of the speaker cone manufacturing method in another embodiment of the present invention;

FIG. 4 shows a schematic block diagram of the loudspeaker cone manufacturing method in a further embodiment of the invention;

fig. 5 shows a schematic block diagram of the loudspeaker cone manufacturing method in a further embodiment of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.

It will be understood that when an element or layer is referred to as being "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it can be directly on, adjacent to, connected or coupled to the other elements or layers or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to" or "directly coupled to" other elements or layers, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.

Spatial relational terms such as "under," "below," "under," "above," "over," and the like may be used herein for convenience in describing the relationship of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.

In order to provide a thorough understanding of the present invention, a detailed structure will be set forth in the following description in order to explain the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

As described above, the conventional speaker cone generally uses paper as the cone, and the sound is turbid in a specific frequency band, the sound quality is reduced, and the expansion of high frequency is severely limited. In order to solve the problems, fibers, wool and the like are often added into pulp or titanium metal is used, but the improvement of the elastic modulus is not obvious, the problem of acoustic dyeing is still serious, and the high frequency expansion is not enough.

In order to solve the technical problems existing at present, the invention provides a preparation method of a loudspeaker cone, which comprises the following steps:

performing a pulping process to obtain pulp;

executing a slurry fishing process to obtain an initial cone;

baking and curing the initial cone to obtain a loudspeaker cone;

wherein, the rigidity regulating substance is added in the process of preparing the loudspeaker cone.

After the rigidity regulating substance is added into the loudspeaker cone, the loudspeaker cone has good Young modulus and smaller density, and the density of the rigidity regulating substance mixed into the paper pulp can be adjusted according to the performance requirement, so that the aims of higher Young modulus and lighter density are fulfilled. After the rigidity regulating substance is doped, the Young modulus of the paper pulp is enhanced, and the existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound can be heard more clearly and naturally, and the high frequency is widened. The rigidity regulating substance is added, so that the price of the loudspeaker cone can be reduced, and the advantages of high internal resistance and low density of paper pulp are combined.