CN213462263U

CN213462263U - Vibrating diaphragm and loudspeaker comprising same

Info

Publication number: CN213462263U
Application number: CN202021284303.8U
Authority: CN
Inventors: 林致宏
Original assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Current assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-06-15
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a vibrating diaphragm for the speaker, including the vibrating diaphragm body, this vibrating diaphragm body is equipped with convex jut including the central part that is the dome form that is located central point and puts on this central part. The utility model discloses the central part of vibrating diaphragm is whole to be the dome form to promote the sound wave radiation intensity of the high band of using its speaker, and set up convex jut in the central part of dome form, then can further extend the high frequency response of using its speaker.

Description

Vibrating diaphragm and loudspeaker comprising same

Technical Field

The utility model relates to an electroacoustic field especially relates to a vibrating diaphragm and contain its speaker.

Background

A loudspeaker is an important acoustic component in electronic equipment, which is a transducer device that converts an electrical signal into an acoustic signal. The larger the size of the existing loudspeaker is, the more serious the attenuation of the high-frequency part of audio frequency is, and the loudspeaker diaphragm is taken as a sound production part of the loudspeaker device, and the performance of the loudspeaker diaphragm directly influences the acoustic performance of the loudspeaker.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model provides a can improve speaker high frequency response's vibrating diaphragm.

According to an aspect of the present invention, the present invention provides a vibrating diaphragm for a speaker, including a vibrating diaphragm body, the vibrating diaphragm body includes a central portion located at a central position and having a dome shape, and a convex protrusion is provided on the central portion.

As an optional technical solution, the protrusion is a plurality of strip-shaped convex ribs.

As an optional technical scheme, the diaphragm body is of a long strip-shaped structure, and the strip-shaped convex ribs are parallel to the long axis side of the diaphragm body.

As an optional technical solution, the diaphragm body further includes a folded ring portion located at an edge position, the folded ring portion surrounds the central portion, and the central portion is connected with the folded ring portion through a recess portion.

As an alternative solution, the corrugated portion is a protruding ring structure.

Alternatively, the protruding direction of the protrusion is the same as the protruding direction of the corrugated portion.

As an optional technical solution, a plurality of grooves are provided on the protruding ring structure.

As an optional technical solution, the diaphragm body further includes a fixing portion connected to the edge portion, and the fixing portion is used for being fixedly combined with an assembly of a speaker.

According to another aspect of the present invention, the present invention also provides a speaker, including the above-mentioned diaphragm.

To sum up, the utility model discloses the whole ball crown that is of central part of vibrating diaphragm to promote the sound wave radiation intensity of the high band of using its speaker, and set up convex jut on the central part of ball crown form, then can further extend the high frequency response of using its speaker.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Drawings

Fig. 1 is a top view of the diaphragm of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;

fig. 3 is a graph of the SPL curve of a speaker using a diaphragm of the present invention and a speaker using a diaphragm of the prior art;

fig. 4 is a graph of the SPL of a speaker using a diaphragm of the present invention and a speaker using another diaphragm of the prior art;

fig. 5 is a schematic cross-sectional view of a speaker using the diaphragm of the present invention.

Detailed Description

Fig. 1 is a top view of the diaphragm of the present invention; fig. 2 is a schematic sectional view taken along line a-a in fig. 1.

Referring to fig. 1 and fig. 2, a diaphragm 1 includes a diaphragm body 10, the diaphragm body 10 includes a central portion 101 located at a central position of the diaphragm body 10 and a corrugated portion 102 located at an edge position of the diaphragm body 10, the corrugated portion 102 is disposed around the central portion 101, and the central portion 101 and the corrugated portion 102 are connected through a concave portion 103 (that is, an outer side of the central portion 101 is connected with the concave portion 103, and an outer side of the concave portion 103 is connected with the corrugated portion 102), wherein the central portion 101 is in a spherical shape, and the central portion 101 is provided with a convex protrusion 1011.

In this embodiment, the diaphragm body 10 has a strip-shaped structure, and the protrusion 1011 is a plurality of strip-shaped protruding ribs, and the plurality of strip-shaped protruding ribs are all parallel to the long axis of the diaphragm body 10. Preferably, the plurality of rib-shaped ribs are uniformly arranged along the short axis of the diaphragm body 10, so that the high frequency response of the speaker using the same is more uniform.

Fig. 3 is a graph of the SPL curve of a speaker using a diaphragm of the present invention and a speaker using a diaphragm of the prior art; fig. 4 is an SPL curve diagram of a speaker using the diaphragm of the present invention and a speaker using another diaphragm of the prior art. Wherein, SPL is an abbreviation of sound pressure level, which is a technical term commonly used in the speaker field, and the curve L1 in fig. 3 and 4 is the SPL curve of a speaker using a diaphragm of the present invention, the curve L2 in fig. 3 is the SPL curve of a speaker using a diaphragm of the prior art, and the curve L3 in fig. 4 is the SPL curve of a speaker using another diaphragm of the prior art.

It can be seen from fig. 3 and 4 that, use the utility model discloses a loudspeaker high-frequency part's of vibrating diaphragm response is superior to the loudspeaker high-frequency part's of using the vibrating diaphragm response among the prior art, that is to say, the utility model discloses a vibrating diaphragm can extend the high-frequency response of the speaker of using it by setting up convex jut on the middle part of dome shape.

Referring to fig. 1 and fig. 2, in the present embodiment, the corrugated portion 102 is a protruding ring structure, and the protruding direction of the protruding portion 1011 (i.e. the protruding direction of the protruding rib) is the same as the protruding direction of the corrugated portion 102. In addition, a plurality of grooves 1021 are disposed on the protruding ring structure (i.e. the folded ring portion), preferably, the folded ring portion 102 has a first end and a second end in an arc shape in a first direction, and the plurality of grooves 1021 are disposed at the first end and the second end of the folded ring portion 102, wherein the first direction is parallel to the long axis side of the diaphragm body 10.

Fig. 5 is a schematic cross-sectional view of a loudspeaker using a diaphragm of the present invention, please refer to fig. 1, fig. 2 and fig. 5, in order to facilitate the installation and combination of the diaphragm 1 and the loudspeaker 2 using the same, the diaphragm body 10 further includes a fixing portion 104, the fixing portion 104 is connected to the outside of the bending portion 102, and the diaphragm 1 can be fixedly combined with other components of the loudspeaker 2 (for example, the frame 20 of the loudspeaker 2) by the fixing portion 104.

The utility model also provides a loudspeaker 2, including the above vibrating diaphragm 1, vibrating diaphragm 1 is fixed to be set up on loudspeaker 2's frame 20.

Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims

1. A diaphragm is used for a loudspeaker and comprises a diaphragm body and is characterized in that the diaphragm body comprises a central part which is positioned at the central position and is in a spherical top shape, and a convex bulge part is arranged on the central part;

the vibrating diaphragm body also comprises a folded ring part positioned at the edge position, the folded ring part surrounds the central part, and the central part is connected with the folded ring part through a concave part;

the folded ring part is a protruding ring structure, and the protruding direction of the protruding part is the same as the protruding direction of the folded ring part.

2. The diaphragm of claim 1, wherein the protrusion is a plurality of strip-shaped ribs.

3. The diaphragm of claim 2, wherein the diaphragm body has a strip-shaped structure, and the plurality of strip-shaped ribs are parallel to the long axis of the diaphragm body.

4. The diaphragm of claim 1 wherein the raised annular structure has a plurality of grooves formed therein.

5. The diaphragm of claim 1, wherein the diaphragm body further includes a fixing portion connected to the corrugated portion, and the fixing portion is configured to be fixedly coupled to a component of a speaker.

6. A loudspeaker comprising a diaphragm according to any one of claims 1 to 5.