CN111683326B

CN111683326B - But linear motion vibrating diaphragm and artificial intelligence audio amplifier

Info

Publication number: CN111683326B
Application number: CN202010656527.5A
Authority: CN
Inventors: 杜漾波; 李本松
Original assignee: Jiangxi Taide Intelligence Technology Co Ltd
Current assignee: Jiangxi Taide Intelligence Technology Co Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-05-28
Anticipated expiration: 2040-07-09
Also published as: CN111683326A

Abstract

The invention relates to the technical field of electroacoustic products, and particularly discloses a vibrating diaphragm capable of moving linearly and an artificial intelligent sound box, which comprise a weight-attached part, a folded ring part positioned on the outer ring of the weight-attached part, and a gully part connecting the weight-attached part and the folded ring part; the weight part comprises a coating layer connected with the gully part and a weight fixedly connected with the coating layer, and the density of the weight is greater than that of the coating layer; the thickness dimension of the channel portion in the axial direction is 1/2 of the thickness dimension of the weight portion in the axial direction. The invention provides a vibrating diaphragm capable of moving linearly and an artificial intelligent sound box, which can effectively solve the problems that an additional weight part of the traditional vibrating diaphragm is easy to deflect and distort.

Description

But linear motion vibrating diaphragm and artificial intelligence audio amplifier

Technical Field

The invention relates to the technical field of electroacoustic products, in particular to a vibrating diaphragm capable of linearly moving and an artificial intelligent sound box.

Background

And a diaphragm, namely a passive radiator. It is one of the parts of electroacoustic sound box products, and it is moved by the action force produced by extruding the air in the box body during the movement process of the loudspeaker, so it is also called passive basin.

Referring to fig. 1, a traditional diaphragm is sequentially provided with an edge portion 1, a corrugated portion 2, a gully portion 4 and an additional weight portion 3 from outside to inside, when sound is played, the additional weight portion 3 can be polarized along an axis direction, and the vibration frequency and amplitude of the polarization determine the quality of sound generated by the diaphragm. At present, the polarization parameters of the weight part 3 are controlled mainly by controlling the mass of the weight part 3 and adjusting the elasticity and compliance of the loop part 2, for example, if the mass of the weight part 3 is increased appropriately, the amplitude and the frequency of vibration of the weight part 3 are reduced, whereas if the mass of the weight part 3 is decreased appropriately, the amplitude and the frequency of vibration of the weight part 3 are increased.

In the actual production process, the sound is easy to distort after the mass of the weight part is increased, and if the artificial intelligence sound box is applied to the artificial intelligence sound box, the tone quality and the awakening rate of the artificial intelligence sound box are greatly influenced. Therefore, it is necessary to improve the existing diaphragm to solve the problem that the diaphragm is easily distorted after the weight of the weight-added part is increased.

Disclosure of Invention

An object of the present invention is to provide a linearly movable diaphragm and an artificial intelligence speaker, which can effectively solve the problem that the conventional diaphragm is easily distorted after the weight of the weight-added part is increased.

In order to achieve the above object, in one aspect, the present invention provides a linearly movable diaphragm, including a weight portion, a folded ring portion located at an outer ring of the weight portion, and a gully portion connecting the weight portion and the folded ring portion; the weight part comprises a coating layer connected with the gully part and a weight fixedly connected with the coating layer, and the density of the weight is greater than that of the coating layer;

the thickness dimension of the channel portion in the axial direction is 1/2 of the thickness dimension of the weight portion in the axial direction.

Optionally, an accommodating cavity is formed inside the coating layer, and the weight is located in the accommodating cavity.

Optionally, a gap for communicating the accommodating cavity with the external space is formed in the coating layer.

Optionally, the opening direction of the folded ring part is the same as or opposite to the direction of the notch.

Optionally, the coating layer, the groove punching part and the folding ring part are of an integrally formed structure.

Optionally, the weight and the coating layer are fixedly connected in a membrane hot-pressing mode.

Optionally, the coating layer, the groove part and the folding ring part are all made of rubber or silica gel.

Optionally, the weight is made of metal.

In another aspect, the present invention provides an artificial intelligence speaker, including any one of the above linearly movable diaphragms.

The invention has the beneficial effects that: the utility model provides a but linear motion vibrating diaphragm and artificial intelligence audio amplifier, the part of additional weight is cladding and additional weight, when needs increase or reduce the quality of additional weight part in order to change polarization parameter, can select thicker or thinner additional weight part for use. Meanwhile, the thickness of the channel part changes along with the thickness of the weight part, and particularly, researches show that when the thickness of the channel part along the axial direction is 1/2 of the thickness of the weight part along the axial direction, proper support can be provided for the weight part, the polarization motion of the weight part is not limited too much, and the diaphragm is not easy to generate deflection and distortion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a conventional diaphragm provided in the background art;

fig. 2 is a schematic top view of a linearly movable diaphragm according to an embodiment;

fig. 3 is a schematic cross-sectional structure diagram of a linearly movable diaphragm according to an embodiment;

fig. 4 is a schematic diagram illustrating the direction of the notch opposite to the opening direction of the edge portion according to the embodiment.

In the figure:

1. an edge portion;

2. a folded ring part;

3. a weight attaching part; 301. a coating layer; 3011. a notch; 302. attaching a weight block;

4. and (4) punching a groove part.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Referring to fig. 2 to 3, the present embodiment provides an artificial intelligence speaker box, which includes a linearly movable diaphragm. The linearly movable diaphragm comprises an additional weight part 3, a groove punching part 4, a corrugated part 2 and an edge part 1 which are connected in sequence from inside to outside. The weight part 3 comprises a cladding layer 301 connected with the gully part 4 and a weight 302 fixedly connected with the cladding layer 301, the density of the weight 302 is greater than that of the cladding layer 301, and the weight of the weight part 3 can be adjusted by replacing different weights 302, so that the polarization parameter of the linear polarization motion in the axial direction can be adjusted. It is to be noted that, in the present embodiment, the thickness dimension of the gully 4 is not a fixed value, but is correlated with the thickness dimension of the weight portion 3. Preferably, the thickness dimension of the channel portion 4 in the axial direction is 1/2 of the thickness dimension of the weight portion 3 in the axial direction.

Since the channel portion 4 is only a connecting member for connecting the weight portion 3 and the annular folded portion 2, the channel portion 4 of the conventional diaphragm is designed to be relatively thin, and the thickness of the channel portion 4 is generally a fixed value, which is between 0.4mm and 0.5 mm.

After a great deal of research and summary, it is found that the root cause of the sound distortion is that the weight of the weighting part 3 is increased: the main means for increasing the weight of the weight portion 3 is to increase the thickness of the weight portion 3, and after the thickness of the weight portion 3 of the conventional diaphragm is increased, the thickness of the gully portion 4 is not changed, so that the situation of insufficient supporting force is easy to occur. When the supporting force is insufficient, the weight portion 3 is liable to undergo radial yawing motion, which greatly affects the axial movement, resulting in sound distortion. Similarly, if the mass of the weight part 3 is reduced and the thickness of the gully 4 is kept constant, the gully 4 may excessively restrict the polarization motion of the weight part 3 in the axial direction, which may reduce the amplitude of the polarization and increase the vibration frequency, which may also reduce the sound quality of the product.

In this embodiment, the weight part 3 is composed of the cladding 301 and the weight 302, and when the mass of the weight part 3 needs to be increased or decreased to change the polarization parameter, a thicker or thinner weight 302 may be selected, and at the same time, the thickness of the gully 4 changes with the change of the thickness of the weight 302, specifically, it is found that, when the thickness of the gully 4 along the axial direction is 1/2 of the thickness of the weight 302 along the axial direction, the proper support for the weight 302 can be ensured, and the polarization motion of the weight 302 is not limited too much, thereby reducing the distortion of the artificial intelligent speaker.

Further, when the thickness dimension of the gutter portion 4 in the axial direction is 1/2 of the thickness dimension of the weight 302 in the axial direction, the effect of polarization resistance is the best.

Referring to fig. 3, a containing cavity is formed inside the coating layer 301, the weight 302 is located in the containing cavity, and the coating layer 301 completely wraps the weight 302. The coating layer 301, the gully part 4, the edge part 1 and the folded ring part 2 are integrally formed. Further, the weight 302 and the cladding layer 301 are fixedly connected by means of hot pressing in the membrane. Specifically, intramembrane hot pressing refers to: after the weight 302 is placed in the die cavity, the sizing material is added, and the die is opened after hot pressing and fluidization, so that the integrally formed coating layer 301, the gully part 4, the edge part 1 and the folded ring part 2 and the weight part 3 in the die can be obtained. The hot press molding in the film is beneficial to fully combining the coating layer 301 with the weight part 3 and not easy to separate. Optionally, a gap 3011 communicating the accommodating cavity with the external space may be provided at the bottom of the covering layer 301. Optionally, when the gap 3011 is large and the bottom of the weight 302 is completely exposed, the structure is a structure for performing single-sided coating on the weight 302.

In some other embodiments, the covering layer 301, the gully portion 4, the edge portion 1, and the folded ring portion 2 may be integrally injection molded, and then the weight 302 is adhered to the semi-closed accommodating cavity by glue through the gap 3011 at the bottom of the covering layer 301.

In this embodiment, the bending portion 2 may be designed as a forward arc (as shown in fig. 3) or a reverse arc (as shown in fig. 4) to be suitable for installation spaces with various shapes inside the artificial intelligence speaker.

Optionally, the coating layer 301, the gully part 4 and the edge part 2 are all made of soft materials such as rubber or silica gel; the weight 302 is made of metal such as aluminum or iron.

Optionally, the front and/or the back of the folded ring part 2 is provided with reinforcing ribs with different shapes. Specifically, the strengthening rib can increase the holding power of dog-ear portion 2, and extension dog-ear portion 2's life slows down dog-ear portion 2's elasticity decay rate.

But linear motion vibrating diaphragm and artificial intelligence audio amplifier that this embodiment provided possess following advantage:

firstly, the folded ring part 2 is connected with the weight part 3 through the gully part 4, and the gully part 4 with optimized thickness size can effectively control the polarization of the weight part 3 in the radial direction, thereby reducing the distortion of the artificial intelligent sound box;

the gully part 4 with the optimized thickness dimension can obviously control the deflection phenomenon of the additional weight part 3 in the radial direction under the condition of not influencing the polarization parameter of the polarization motion, thereby enhancing the linear polarization motion control capability of the vibrating diaphragm, reducing the total harmonic distortion of the artificial intelligent sound box, optimizing the tone quality of the artificial intelligent sound box, improving the awakening rate of the artificial intelligent sound box and fundamentally improving the intelligent degree of the artificial intelligent sound box.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A vibrating diaphragm capable of moving linearly is characterized by comprising a weight part, a folded ring part positioned on the outer ring of the weight part and a gully part connecting the weight part and the folded ring part; the weight part comprises a coating layer connected with the gully part and a weight fixedly connected with the coating layer, and the density of the weight is greater than that of the coating layer;

1/2, the thickness dimension of the punching groove part along the axial direction is the thickness dimension of the weighting part along the axial direction;

an accommodating cavity is formed in the coating layer, and the weight is located in the accommodating cavity;

the coating layer is provided with a gap for communicating the accommodating cavity with the external space;

the opening direction of the folded ring part is the same as or opposite to the direction of the notch;

the coating layer, the groove punching part and the folding ring part are of an integrally formed structure;

the weight is fixedly connected with the coating layer in an intramembrane hot pressing mode;

the coating layer, the groove punching part and the folding ring part are all made of rubber or silica gel;

the weight is made of metal.

2. An artificial intelligence loudspeaker comprising the linearly movable diaphragm of claim 1.