CN215072971U

CN215072971U - Rectangular micro loudspeaker with elastic wave

Info

Publication number: CN215072971U
Application number: CN202120518546.1U
Authority: CN
Inventors: 李秉彧
Original assignee: Dongguan Shunhefeng Electric Co ltd
Current assignee: Dongguan Shunhefeng Electric Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-12-07
Anticipated expiration: 2031-03-12

Abstract

The utility model relates to a rectangle micro loudspeaker with play ripples, it includes: a support; the elastic wave is generally rectangular and is provided with an inner ring part, an outer ring part and a wavy part, the wavy part is connected between the inner ring part and the outer ring part, the outer ring part is combined above the bracket, and the wavy part is symmetrically hollowed; the vibrating diaphragm is provided with a central part, a suspended edge part surrounding the central part and a positioning part surrounding the suspended edge part, the outer periphery of the central part is combined above the inner ring part of the damper, the positioning part is combined above the outer ring part of the damper, and the wavy part of the damper is suspended below the suspended edge part; a voice coil combined below the inner ring part of the damper; and a magnetic loop structure, which is combined with the bracket and has a magnetic gap relative to the voice coil. Therefore, the problem that the thin diaphragm cannot bear high power and generates polarization distortion is solved, and the effect of maintaining normal operation of the thin diaphragm when the high power is input due to the fact that the elastic wave is additionally arranged is achieved.

Description

Rectangular micro loudspeaker with elastic wave

Technical Field

The present invention relates to a rectangular micro speaker with elastic wave, and more particularly to a design for increasing the elastic wave to make the thin diaphragm still maintain normal operation when inputting high power.

Background

The micro-speaker is adapted to the current consumer products which tend to be lighter and thinner, and must take sound quality and volume into consideration; however, the bass performance of the micro-speaker is usually poor, and although the bass can be improved by thinning the thickness of the diaphragm, the strength of the suspension edge (i.e. the convex structure at the periphery of the diaphragm) is insufficient after the thickness of the diaphragm is thinned; therefore, when high power is input to the micro-speaker for high volume performance, the thin suspension edge cannot sufficiently exert the damping effect, and the thin diaphragm cannot endure the high power, thereby causing a problem of polarization distortion.

SUMMERY OF THE UTILITY MODEL

For solving the unable high power of tolerating of thin vibrating diaphragm and produce the problem of polarization distortion, the utility model provides a miniature speaker of rectangle with play ripples, it has to add and plays the ripples and causes thin vibrating diaphragm still can maintain the efficiency of normal work when inputing the high power.

The utility model provides a technical scheme that its technical problem adopted is:

a rectangular micro-speaker with damper, comprising: a support; the elastic wave is generally rectangular and is provided with an inner ring part, an outer ring part and a wavy part, the wavy part is connected between the inner ring part and the outer ring part, the outer ring part is combined above the bracket, and the wavy part is symmetrically hollowed; the vibrating diaphragm is provided with a central part, a suspended edge part surrounding the central part and a positioning part surrounding the suspended edge part, the outer periphery of the central part is combined above the inner ring part of the damper, the positioning part is combined above the outer ring part of the damper, and the wavy part of the damper is suspended below the suspended edge part; a voice coil combined below the inner ring part of the damper; and a magnetic loop structure, which is combined with the bracket and has a magnetic gap relative to the voice coil.

In addition, the wave part is provided with two pairs of long-edge wave pieces and a pair of short-edge wave pieces; wherein, the elastic wave also extends to form a bridging part relative to each pair of wave sheets on the inner periphery of the inner ring part; or the wave part is provided with a pair of long edge wave pieces and four included angle wave pieces. The rigidity of the wave part is greater than or equal to that of the suspended edge part.

Moreover, the elastic wave is made of woven gauze or thermoplastic plastics. The elastic wave is made of one or a combination of pure cotton gauze, polyester gauze or blended gauze. The damper is preferably made of Polyetheretherketone (PEEK) thermoplastic.

The beneficial effects of the utility model are that, have and add the bullet ripples and cause thin vibrating diaphragm still can maintain the efficiency of normal work when inputing the high power.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an exploded view of a first embodiment of the present invention.

Fig. 2 is a structural combination diagram of the first embodiment of the present invention.

Fig. 3 is a structural sectional view of the first embodiment of the present invention.

Fig. 4 is a perspective view of a damper structure according to a second embodiment of the present invention.

Fig. 5 is a perspective view of a damper structure according to a third embodiment of the present invention.

The reference numbers in the figures illustrate:

10 support

20a, 20b, 20c damper

21 inner ring part

22 outer ring portion

23a, 23b wave part

231 long side wave sheet

232 short edge wave sheet

233 included angle wave sheet

24 bridge section

30 diaphragm

31 center part

32 overhang edge

33 positioning part

40 Voice coil

50 magnetic return structure

51 magnetic gap

Detailed Description

First, referring to fig. 1 to 3, a first embodiment of the present invention includes: a support 10; an elastic wave 20a, which is generally rectangular and has an inner ring portion 21, an outer ring portion 22 and a symmetrical hollow wave portion 23a, wherein the wave portion 23a has two pairs of long-side wave pieces 231 and a pair of short-side wave pieces 232, so that each pair of long-side wave pieces 231 and each pair of short-side wave pieces 232 are connected between the inner ring portion 21 and the outer ring portion 22, and the outer ring portion 22 is combined above the bracket 10; a diaphragm 30 having a central portion 31, a suspended edge portion 32 surrounding the central portion 31, and a positioning portion 33 surrounding the suspended edge portion 32, wherein the outer periphery of the central portion 31 is coupled to the upper portion of the inner ring portion 21 of the damper 20a, the positioning portion 33 is coupled to the upper portion of the outer ring portion 22 of the damper 20a, the wavy portion 23a of the damper 20a is suspended below the suspended edge portion 32, and the rigidity of the wavy portion 23a is greater than or equal to the rigidity of the suspended edge portion 32; a voice coil 40 coupled to a lower portion of the inner ring portion 21 of the damper 20 a; and a magnetic loop structure 50 combined with the support 10 and having a magnetic gap 51 opposite to the voice coil 40.

Next, referring to fig. 4, the difference between the second embodiment and the first embodiment of the present invention is: the damper 20b is generally rectangular and has an inner ring portion 21, an outer ring portion 22 and a symmetrical hollow wave portion 23b, the wave portion 23b has a pair of long-side wave pieces 231 and four included angle wave pieces 233, and the pair of long-side wave pieces 231 and each included angle wave piece 233 are connected between the inner ring portion 21 and the outer ring portion 22; referring to fig. 5, the third embodiment of the present invention is different from the first embodiment in that: the damper 20c further has a bridging portion 24 extending from the inner periphery of the inner ring portion 21 to each pair of the

wave plates

231, 232.

However, the

elastic waves

20a, 20b, 20c are made of one or a combination of woven gauze of pure cotton gauze, polyester gauze or blended gauze; alternatively, the

damper

20a, 20b, 20c is made of a thermoplastic, preferably a Polyetheretherketone (PEEK) thermoplastic.

Based on the above structure, the thickness of the diaphragm is increased to solve the problem that the micro-speaker can endure high power, and the bass performance of the micro-speaker is sacrificed; therefore, in order to compromise the intensity and the compliance of the dangling edge, maintain the bass quality of the micro-speaker, the utility model discloses take not to increase the thickness of the vibrating diaphragm 30, and add the

ripples

20a, 20b, 20c in the (thin) below of the vibrating diaphragm 30 that the bass performance is good, in order to increase the intensity of the vibrating diaphragm 30, make the

ripples

23a, 23b of

ripples

20a, 20b, 20c play the damping efficiency like the second dangling edge generally, effectively maintain the reciprocating vibration of vibrating diaphragm 30 and voice coil 40 in the vertical axial direction, in order to improve the problem that the high power of general micro-speaker input easily causes polarization distortion, realize the micro-speaker of compromise tone quality and volume; therefore, the utility model discloses have and add the bullet ripples and cause thin vibrating diaphragm still can maintain the efficiency of normal work when inputing the high power.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims

1. A rectangular micro-speaker with damper, comprising:

a support;

the elastic wave is generally rectangular and is provided with an inner ring part, an outer ring part and a wavy part, the wavy part is connected between the inner ring part and the outer ring part, the outer ring part is combined above the bracket, and the wavy part is symmetrically hollowed;

the vibrating diaphragm is provided with a central part, a suspended edge part surrounding the central part and a positioning part surrounding the suspended edge part, the outer periphery of the central part is combined above the inner ring part of the damper, the positioning part is combined above the outer ring part of the damper, and the wavy part of the damper is suspended below the suspended edge part;

a voice coil combined below the inner ring part of the damper; and

and the magnetic return structure is combined with the bracket and has a magnetic gap relative to the voice coil.

2. The rectangular micro-speaker with damper according to claim 1, wherein said wave portion has two pairs of long side wave plates and one pair of short side wave plates.

3. The rectangular micro-speaker with the damper according to claim 2, wherein the damper further has a bridging portion extending from each pair of the wave plates at the inner periphery of the inner ring portion.

4. The rectangular micro-speaker with an elastic wave according to claim 1, wherein the wave portion has a pair of long-side wave plates and four included-angle wave plates.

5. The rectangular microspeaker with an elastic wave according to any one of claims 1 to 4, wherein the rigidity of the wavy portion is greater than/equal to the rigidity of the suspended edge portion.

6. The rectangular microspeaker of claim 5 wherein said damper is made of woven gauze or thermoplastic.

7. The rectangular microspeaker of claim 6 wherein said elastic wave is made of one or a combination of cotton gauze, polyester gauze or blended gauze.

8. The rectangular microspeaker of claim 6 wherein said damper is fabricated from Polyetheretherketone (PEEK) thermoplastic.