CN216930305U - Improved generation earphone vibrating diaphragm - Google Patents

Abstract

The utility model discloses an improved earphone vibrating membrane, which comprises: an integrally formed membrane and a fixing ring located at the peripheral edge of the membrane. An extension part on the periphery of the dome and connected with the fixing ring, the extension part is formed with upper convex parts and lower concave parts which are surrounded and evenly distributed along the dome, wherein the shape and size of all the upper convex parts are formed with all the lower convex parts. of the same shape and size. After the utility model adopts the above technical solution, the shape and size of all the upper convex parts in the utility model are the same as the shape and size of all the lower convex parts. In this way, during the vibration of the diaphragm up and down, the size of the rebound force remains the same. Consistent, so that the upper and lower amplitudes of the diaphragm remain the same, which can further improve the mid-bass resilience of the speaker, and the sound quality of the mid-bass is more stable.

Description

An improved earphone diaphragm

Technical field:

The utility model relates to the technical field of earphone speaker products, in particular to an improved earphone vibrating membrane.

Background technique:

As a device that can convert electrical energy into sound energy, speakers are widely used in mobile terminal devices such as mobile phones, earphones, and computers. An important component of the speaker is the vibrating membrane. Since the vibrating membrane is the medium and link that converts the level signal into sound, the quality of its design directly affects the sound quality characteristics of the final sound quality output of the earphone itself. As shown in FIG. 1 , this is a common vibrating membrane used in earphone speakers at present. It is composed of a diaphragm 31 with a circular main body. A copper ring is fixed on the outer edge of the diaphragm 31 as a fixing ring 32 , in the central area of the diaphragm 31 is formed a dome 33 that is raised upward, and the area between the dome 33 and the fixing ring 32 is used as a vibration area. When the diaphragm is working, the voice coil will be fixed on the periphery of the dome, and the voice coil will drive the diaphragm to vibrate up and down under the action of the magnetic field force. Usually, the diaphragm should not only be thinner and lighter, but also take into account a certain degree of rigidity. As shown in FIG. 1 , several uniformly distributed reinforcing ribs 30 are formed in the vibration area of the diaphragm 31 , thereby increasing the rigidity of the diaphragm 31 .

At present, although different designs of reinforcing ribs are used in the diaphragms of different earphones, the overall design idea is basically the same as the above-mentioned Figure 1, but the specific shape and quantity of the reinforcing ribs are designed differently. The biggest problem with this design is that the amplitude of the diaphragm 31 will deviate during the up and down vibration process. Even under the action of the same magnetic field force, the amplitude of the up and down vibration will not remain the same. This will result in the sound quality of the headphones being compromised. Mid-bass resilience. As shown in FIG. 1 , since the diaphragm 31 is provided with reinforcing ribs 30 , the reinforcing ribs 30 themselves improve the rigidity of the diaphragm 31 , but their elastic forces in the upper and lower directions of the diaphragm are not equal. Ideally, the diaphragm in the vibration area should be a flat surface, so that the upper and lower rebound forces will be consistent. However, in this state, the rigidity of the diaphragm is obviously insufficient, so a reinforcing rib is provided on the diaphragm. However, the appearance of the reinforcing rib is bound to cause the unequal rebound force in the upper and lower directions of the diaphragm, resulting in insufficient rebound force in the mid-bass of the earphone and affecting the audio quality of the earphone. In order to eliminate this effect, when designing the diaphragm, all manufacturers need to carry out a certain modeling design for the area with reinforcing ribs in the diaphragm, such as adding a certain radian, so as to make up for the deficiencies caused by the rebound force. This kind of design needs to be designed according to different reinforcing ribs, which is not only complicated in the design process, but also cannot guarantee the accuracy.

In view of the above problems, the present inventors propose the following technical solutions.

Utility model content:

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved earphone vibrating membrane.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: an improved earphone vibrating membrane, comprising: an integrally formed diaphragm and a fixing ring located at the peripheral edge of the diaphragm, the diaphragm includes: a diaphragm formed on a The spherical top in the central area and raised upward and the extension part located on the periphery of the spherical top and connected with the fixing ring, the extended part is formed with the upper convex part and the lower concave part which are surrounded and evenly distributed along the spherical top, wherein the upper The convex parts and the concave parts are alternately distributed, with the same number and the same shape.

Further, in the above technical solution, the upper convex portion and the lower concave portion are connected alternately in sequence.

Further, in the above technical solution, the outer edge of the spherical top has a torus surface, the proximal ends of the upper convex portion and the lower concave portion close to the spherical top are connected to the torus surface, and the upper convex portion is connected to the annular surface. The distal end of the lower part and the lower part remote from the dome is connected to the retaining ring.

Further, in the above technical solution, the upper convex portion and the lower concave portion are distributed up and down along the plane where the annular surface is located, and the annular surface is coincident with the bottom surface of the spherical top.

Further, in the above technical solution, there is a connecting portion between two adjacent upper convex portions and lower concave portions, and the connecting portion is perpendicular to the annular surface.

Further, in the above technical solution, the upper convex parts and the lower concave parts are alternately distributed, and the upper convex parts and the lower concave parts have the same number and the same fan shape, and any connecting part is extended with a radius of the dome. Lines overlap.

Further, in the above technical solution, the upper convex parts and the lower concave parts are alternately distributed, and the upper convex parts and the lower concave parts are of the same number and have the same shape, and the plane where any one of the connecting parts is located is different from any radius of the dome. The extension cords overlap.

After the utility model adopts the above technical solution, the shape and size of all the upper protruding parts in the utility model are the same as the shape and size of all the lower protruding parts. In this way, during the vibration of the diaphragm up and down, the size of the rebound force remains the same, so that the upper and lower amplitudes of the diaphragm remain the same, which can further improve the rebound force of the mid-bass of the speaker, and the sound quality of the mid-bass is more stable.

Description of drawings:

Fig. 1 is the perspective view of the existing vibrating membrane;

Fig. 2 is the front view of the first embodiment of the present utility model;

3 is a perspective view of Embodiment 1 of the present invention;

FIG. 4 is a three-dimensional cross-sectional view of Embodiment 1 of the present invention;

Fig. 5 is the front view of the second embodiment of the present utility model;

FIG. 6 is a front view of the third embodiment of the present invention.

Detailed ways:

The present utility model will be further described below with reference to specific embodiments and accompanying drawings.

The utility model relates to an improved earphone vibrating membrane, which is applied to the sounding horns of products such as earphones. As shown in FIGS. 2 to 4 , this is the first embodiment of the present invention, which includes: an integrally formed diaphragm 1 and a fixing ring 2 located at the peripheral edge of the diaphragm.

The diaphragm 1 is usually made of pulp, polymer material, metal, polyester film material and composite material. The utility model is preferably made of polyester film material. The shape of the main body of the diaphragm 1 is circular, which includes: a spherical top 11 formed in the central area and raised upward, and an extension part 12 located on the periphery of the spherical top 11 and connected with the fixing ring 2 , and the extended part 12 is formed with The upper convex portion 121 and the lower concave portion 122 are surrounded and evenly distributed along the dome 11 .

The fixing ring 2 is usually made of copper metal material, which is used to fix the entire diaphragm 1 and is installed in the speaker.

In addition, there is a torus 14 on the outer edge of the dome 11. The torus 14 is used to connect with the voice coil, and the magnetic field force received by the voice coil drives the entire diaphragm 1 to vibrate up and down, and passes through the diaphragm. The sheet 1 itself elastically performs a rebound reset.

In order to facilitate the distinction between the upper convex portion 11 and the lower convex portion 12 , the shaded area in FIG. 2 and FIG. 3 is the lower convex portion 12 . In order to ensure the corresponding size of the resilience in the upper and lower sides of the diaphragm 1 , the shapes and sizes of all the upper protrusions 11 in the present invention are the same as the shapes and sizes of all the lower protrusions 12 . That is, if the horizontal plane where the upper and lower midpoints of the upper convex portion 11 and the lower convex portion 12 are located is the reference plane, the upper convex shape and the lower concave shape formed on the upper and lower sides of the reference plane should be the same, and the two are only angularly deflected. The annular surface 14 described in the first embodiment is the reference plane, the upper convex portion 121 and the lower concave portion 122 are distributed up and down along the plane where the annular surface 14 is located, and the annular surface 14 coincides with the bottom surface of the dome 11 .

The design scheme adopted for the upper convex portion 121 and the lower concave portion 122 in the first embodiment is that the upper convex portion 121 and the lower concave portion 122 are alternately distributed and connected in sequence, so that the entire extension portion 12 is composed of the upper convex portion 121 and the lower concave portion 122. , and the upper convex portion 121 and the lower concave portion 122 are the same in number and have the same shape. There is a connecting part 123 between two adjacent upper convex parts 121 and lower concave parts 122 . perpendicular to each other.

The proximal ends of the upper convex portion 121 and the lower concave portion 122 that are close to the dome 11 are connected to the annular surface 14 , and the distal ends of the upper convex portion 121 and the lower concave portion 122 that are far away from the dome 11 are connected to the fixing ring 2 . In the first embodiment, the proximal end and the distal end are arcs on the same plane, wherein the arc length of the distal end is greater than the arc length of the proximal end. In order to improve the sensitivity, the length of the proximal arc should be shortened as much as possible. However, due to the small size of the entire voice coil, if the length of the near-end arc is blindly reduced, it will cause trouble to the molding. Therefore, in the first embodiment, the upper convex part 121 and the lower concave part 122 have an irregular fan-shaped structure. At this time, the plane where any connecting portion 123 is located does not coincide with any extension line of the radius of the dome 11 . Within the allowable range of the manufacturing process, the lengths of the entire upper convex portion 121 and the lower concave portion 122 are elongated as much as possible to improve the sensitivity of the vibrating membrane.

The number of the upper convex portion 121 and the lower concave portion 122 in the first embodiment can be set as required, for example, there may be two or more. As shown in FIG. 5 , in the second embodiment, the number of the upper convex portion 121 and the lower concave portion 122 is nine.

Of course, the upper convex portion 121 and the lower concave portion 122 of the present invention can also adopt a conventional fan shape, as shown in FIG. The fan-shaped shape means that any connecting portion 123 coincides with an extension line of the radius of the dome 11 .

To sum up, after the above technical solutions are adopted in the present invention, the shapes and sizes formed by all the upper convex parts 11 in the present invention are the same as the shapes and sizes formed by all the lower convex parts 12 . In this way, when the diaphragm 1 vibrates up and down, the size of the rebound force is kept the same, so that the upper and lower amplitudes of the diaphragm 1 are kept the same, so that the rebound force of the mid-bass of the speaker can be further improved, and the sound quality of the mid-bass is more stable.

Of course, the above are only specific embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made in accordance with the structures, features and principles described in the scope of the patent application of the present invention are not intended to limit the scope of the present invention. It should be included in the scope of the patent application of this utility model.

Claims (7)

1. An improved earphone vibrating membrane, comprising: an integrally formed diaphragm (1) and a fixing ring (2) located at the peripheral edge of the diaphragm, the diaphragm (1) comprising: formed in a central area and raised upwards The spherical top (11) and the extension part (12) located on the outer periphery of the spherical top (11) and connected with the fixing ring (2) are characterized in that: the extension part (12) is formed with a shape along the spherical top (11) Surrounding and evenly distributed upper convex parts (121) and lower concave parts (122), wherein the upper convex parts (121) and the lower concave parts (122) are alternately distributed, with the same number and the same shape. 2. An improved earphone diaphragm according to claim 1, characterized in that: the upper convex portion (121) and the lower concave portion (122) are alternately connected in sequence. 3. An improved earphone vibrating membrane according to claim 1 or 2, characterized in that: the outer edge of the spherical top (11) has a torus (14), and the upper convex portion ( 121) and the proximal end of the lower concave portion (122) close to the spherical top (11) are connected to the annular surface (14), and the upper convex portion (121) and the lower concave portion (122) are far from the spherical top (11). The distal end is connected to the fixing ring (2). 4. An improved earphone vibrating membrane according to claim 3, characterized in that: the upper convex portion (121) and the lower concave portion (122) are distributed up and down along the plane where the annular surface (14) is located, and the The torus (14) coincides with the projection of the bottom surface of the spherical top (11) on the plane. 5. An improved headphone diaphragm according to claim 3, characterized in that: a connecting part (123) is provided between two adjacent upper convex parts (121) and lower concave parts (122), the connecting part (123) is perpendicular to the annular surface (14). 6. An improved earphone vibrating membrane according to claim 5, characterized in that: the upper convex portion (121) and the lower concave portion (122) are of the same quantity and have the same fan shape, that is, any connection The parts (123) are all coincident with a radius extension line of the dome (11). 7. An improved earphone vibrating membrane according to claim 5, characterized in that: the upper convex portion (121) and the lower concave portion (122) are of the same quantity and have the same shape, and any connecting portion ( The plane where 123) is located does not coincide with the extension line of any radius of the dome (11).

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