CN210093526U

CN210093526U - Sound production device

Info

Publication number: CN210093526U
Application number: CN201921033387.5U
Authority: CN
Inventors: 沈凯华
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-06-30
Filing date: 2019-07-02
Publication date: 2020-02-18
Anticipated expiration: 2029-07-02
Also published as: WO2021000158A1

Abstract

The utility model provides a sounding device. The sounder includes the basin frame and is fixed in the vibration system and the magnetic circuit of basin frame, vibration system including the fixing in the first vibrating diaphragm, the drive of basin frame the voice coil loudspeaker voice coil and the elastic support piece of first vibrating diaphragm vibration sound production, elastic support piece one end is fixed in the voice coil loudspeaker voice coil, the other end are fixed in the basin frame, magnetic circuit is including being fixed in the yoke of basin frame, the basin frame is including fixing elastic support piece's two first lateral walls and connect in two second lateral wall between the first lateral wall, sounder still including pressing from both sides and locate first lateral wall with supporting part between the yoke, the quantity of supporting part is a plurality of and a plurality of the supporting part interval sets up. Compared with the prior art, the utility model provides a sounder can prevent magnet steel and yoke separation when falling the experiment.

Description

Sound production device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic equipment technical field especially relates to a sounding device.

[ background of the invention ]

With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, one of the functions of a mobile phone is a high-quality music function, and a speaker in the mobile phone is one of the necessary conditions for realizing the high-quality music function.

In the related art, the sound production device adopts a large-leakage non-flanging design for optimizing performance, namely, a short shaft of the sound production device is not provided with a flanging, a magnetic yoke is not supported, and the magnetic steel is easy to deform during a drop test to separate from the magnetic yoke, so that the failure of the sound production device is caused.

Therefore, there is a need to provide a new sound generation device to solve the above problems.

[ Utility model ] content

The utility model aims at overcoming above-mentioned technical problem, provide a can prevent the sounder of magnet steel and yoke separation when falling the experiment.

In order to achieve the above object, the utility model provides a sounder, include the basin frame and be fixed in the vibration system and the magnetic circuit of basin frame, vibration system include the fixing in first vibrating diaphragm, the drive of basin frame the voice coil loudspeaker voice coil and the elastic support piece of first vibrating diaphragm vibration sound production, elastic support piece one end is fixed in the voice coil loudspeaker voice coil, the other end are fixed in the basin frame, magnetic circuit is including being fixed in the yoke of basin frame, the basin frame is including fixing elastic support piece's two first lateral walls and connect in two second lateral wall between the first lateral wall, sounder still locates including pressing from both sides first lateral wall with supporting part between the yoke, the quantity of supporting part is a plurality of and a plurality of the supporting part interval sets up.

Preferably, the plurality of supporting parts are symmetrically arranged on the two first side walls, the supporting parts are in a flat plate shape, each supporting part comprises an upper bottom fixed with the first side wall, a lower bottom fixed with the magnet yoke and a bevel edge connecting the upper bottom and the lower bottom, and the length of the upper bottom is not equal to that of the lower bottom.

Preferably, the magnetic yoke comprises a body portion and extending portions, the body portion and the extending portions are integrally arranged, the extending portions are arranged at two opposite ends of the body portion, the magnetic circuit system further comprises main magnetic steel and auxiliary magnetic steel, the main magnetic steel and the auxiliary magnetic steel are fixed to the body portion, the auxiliary magnetic steel is located on two sides of the main magnetic steel and spaced from the main magnetic steel, the auxiliary magnetic steel is clamped between the basin frame and the magnetic yoke, the extending portions and the first side walls are arranged at opposite intervals, and the supporting portions are clamped between the extending portions and the first side walls.

Preferably, the elastic support member is located between the extension portion and the first side wall, the elastic support member includes a first fixing arm and a second fixing arm which are arranged at intervals, and an elastic arm which connects the first fixing arm and the second fixing arm, the first fixing arm is fixed at one end of the voice coil which is far away from the first diaphragm, and the second fixing arm is fixed at the first side wall.

Preferably, when the supporting portion and the extending portion are integrally formed, the shape of the second fixing arm is matched with the shape of the first side wall, and the second fixing arm is fixedly attached to the first side wall; the supporting portion extends from the edge of the extending portion to the first side wall, the upper bottom is fixedly connected with the second fixing arm in an abutting mode, and the lower bottom is fixedly connected with the extending portion.

Preferably, when the supporting portion and the first side wall are integrally formed, the second fixing arm includes two fixing ends arranged at intervals, the two fixing ends are respectively fixed at two end portions of the first side wall, and the supporting portion is formed by extending from a middle edge of the first side wall to the extending portion; the upper bottom is fixedly connected with the first side wall, and the lower bottom is fixedly connected with the extending part in an abutting mode.

Compared with the prior art, the utility model provides a sounder is located through setting up the clamp first lateral wall with supporting part between the extension not only can support the yoke is in order to increase the intensity of yoke prevents magnet steel and yoke separation when falling the experiment, can also be through the adjustment the size and the quantity of supporting part are adjusted sounder's leakage quantity guarantees sounder performance is unchangeable.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced 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 without inventive work, wherein:

fig. 1 is a perspective view of a sound generating device according to a first embodiment of the present invention;

fig. 2 is an exploded view of a sound producing device according to a first embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1;

fig. 4 is two connection structure diagrams of the support portion according to the first embodiment of the present invention;

fig. 5 is a perspective view of the sound generating device according to the second embodiment of the present invention;

fig. 6 is an exploded view of the sound producing device according to the second embodiment of the present invention;

fig. 7 is two connection structure diagrams of the support portion according to the second embodiment of the present invention.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 3, fig. 1 is a perspective view of a sound generating device according to a first embodiment of the present invention; fig. 2 is an exploded view of a sound producing device according to a first embodiment of the present invention; fig. 3 is a sectional view taken along line III-III of fig. 1. The utility model provides a sounding device 100, including basin frame 1, set firmly in the magnetic circuit 2 and the vibration system 3 and the supporting part 4 of basin frame 1.

The basin stand 1 is rectangular and comprises two first side walls 11 which are oppositely arranged and a second side wall 12 which is connected between the two first side walls 11. The vibration system 3 comprises a first diaphragm 31, a voice coil 32 and an elastic support member 33, the first diaphragm 31 is fixed above the basin frame 1, the voice coil 32 is fixed below the first diaphragm 31, and after being electrified, the voice coil and the magnetic circuit system 2 generate electromagnetic force, so that the first diaphragm 31 is driven to vibrate and sound. The elastic support 33 is used for fixedly supporting the voice coil 32, conducting electricity to the voice coil 32 and increasing the amplitude of the sounding device 100 so as to improve the sounding loudness of the sounding device 100. The elastic supporting member 33 includes a first fixing arm 331 and a second fixing arm 332 disposed at an interval, and an elastic arm 333 connecting the first fixing arm 331 and the second fixing arm 332, the first fixing arm 331 is fixed at one end of the voice coil 32 far away from the first diaphragm 31, and the second fixing arm 332 is fixed at the first side wall 11.

The magnetic circuit system 2 comprises a magnetic yoke 21 fixedly connected below the basin frame 1, main magnetic steel 22, a main pole core 221 attached to the surface of the main magnetic steel 22, auxiliary magnetic steel 23 arranged at intervals with the main magnetic steel 22, and an auxiliary pole core 231 attached to the surface of the auxiliary magnetic steel 23, wherein the main pole core 221 and the auxiliary pole core 231 are made of magnetic conductive materials and are used for playing a magnetic conductive role, converging a magnetic field and improving the magnetic induction performance of a product.

The magnetic yoke 21 includes a body portion 211 integrally disposed and extending portions 212 disposed at opposite ends of the body portion 211, the main magnetic steel 22 and the auxiliary magnetic steel 24 are both fixed to the body portion 211, wherein the main magnetic steel 22 is located at a middle position of the body portion 211, the auxiliary magnetic steels 24 are located at two sides of the main magnetic steel 22 and are spaced apart from the main magnetic steel 22 to form a magnetic gap, one end of the voice coil 32 is fixed to the first diaphragm 31, and the other end of the voice coil is inserted into the magnetic gap.

Referring to fig. 4, fig. 4 is a schematic diagram of two connection structures of a supporting portion according to a first embodiment of the present invention. The support portion 4 is interposed between the first sidewall 11 and the yoke 21, specifically, the support portion 4 is interposed between the first sidewall 11 and the extension portion 212, the support portion 4 has a plate shape, and in this embodiment, the cross section of the support portion 4 has a trapezoidal shape. The supporting portion 4 includes an upper base 41 fixed to the first side wall 11, a lower base 42 fixed to the extending portion 212, and a slanting edge 43 connecting the upper base 41 and the lower base 42.

In addition, in the present embodiment, the supporting portion 4 is formed by extending from an edge of the extending portion 212 to the first sidewall 11, that is, the supporting portion 4 and the extending portion 212 are integrally formed. Accordingly, in this embodiment, the shape of the second fixing arm 332 matches the shape of the first side wall 11, the second fixing arm 332 is fixed to the first side wall 11 in a fitting manner, that is, the upper base 41 is fixed to the second fixing arm 332 in an abutting manner, and the lower base 42 is fixed to the extending portion 212 in a connecting manner.

The length of the upper 41 is not equal to the length of the lower base 42. Specifically, in fig. 4(a), the length of the upper base 41 is greater than the length of the lower base 42. In fig. 4(b), the length of the upper base 41 is smaller than the length of the lower base 42.

The number of the supporting parts 4 is multiple, and the supporting parts 4 are arranged on the two first side walls 11 at intervals and symmetrically. Such a structure can adjust the leakage amount of the sound device 100 by adjusting the size and number of the supporting parts 4, thereby ensuring that the performance of the sound device 100 is not changed.

Example two

Referring to fig. 5 and 6, fig. 5 is a perspective view of a sound generating device according to a second embodiment of the present invention; fig. 6 is an exploded view of the sound generating device according to the second embodiment of the present invention.

Compared with the first embodiment, the structure of the second fixing arm 332 'of the elastic supporting member 33' provided in the present embodiment is different from that of the second fixing arm 332 of the first embodiment; in addition, the supporting portion 4 'provided by the present embodiment is formed by extending from the edge of the first side wall 11 to the extending portion 212, that is, the supporting portion 4' and the frame 12 are integrally formed.

In this embodiment, the second fixing arm 332 'includes two fixing ends 3321 spaced apart from each other, the two fixing ends 3321 are respectively fixed to two end portions of the first side wall 11, and the supporting portion 4' is formed by extending from an edge of a middle portion of the first side wall 11 to the extending portion 212. The upper bottom 41 'of the support portion 4' is fixedly connected to the first sidewall 11, and the lower bottom 42 'of the support portion 4' abuts against the extension portion 212 of the yoke 21.

Specifically, please refer to fig. 7 in combination, fig. 7 is a diagram illustrating two connection structures of the supporting portion according to the second embodiment of the present invention. In fig. 7(c), the length of the upper base 41 'is greater than the length of the lower base 42'; in fig. 7(d), the length of the upper base 41 'is smaller than the length of the lower base 42'.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. The utility model provides a sounder, includes the basin frame and is fixed in the vibration system and the magnetic circuit of basin frame, vibration system include the fixing in first vibrating diaphragm, the drive of basin frame the voice coil loudspeaker voice coil and the elastic support piece of first vibrating diaphragm vibration sound production, elastic support piece one end is fixed in voice coil loudspeaker voice coil, the other end are fixed in the basin frame, magnetic circuit is including being fixed in the yoke of basin frame, its characterized in that, the basin frame is including fixing elastic support piece's two first lateral walls and connect in two second lateral wall between the first lateral wall, sounder still locates including pressing from both sides first lateral wall with supporting part between the yoke, the quantity of supporting part is a plurality of and a plurality of the supporting part interval sets up.

2. The sound production device as claimed in claim 1, wherein a plurality of the supporting portions are symmetrically disposed on the two first side walls, the supporting portions are flat, the supporting portions include an upper base fixed to the first side walls, a lower base fixed to the magnetic yoke, and a bevel edge connecting the upper base and the lower base, and the length of the upper base is not equal to the length of the lower base.

3. The sound production device as claimed in claim 2, wherein the yoke comprises a body portion and extending portions disposed at opposite ends of the body portion, the magnetic circuit system further comprises a main magnetic steel and an auxiliary magnetic steel fixed to the body portion, the auxiliary magnetic steel is disposed at two sides of the main magnetic steel and spaced from the main magnetic steel, the auxiliary magnetic steel is sandwiched between the basin frame and the yoke, the extending portions are disposed at opposite intervals from the first side wall, and the supporting portion is sandwiched between the extending portions and the first side wall.

4. The sounding device according to claim 3, wherein the elastic supporting member is located between the extending portion and the first side wall, the elastic supporting member includes a first fixing arm and a second fixing arm spaced apart from each other, and an elastic arm connecting the first fixing arm and the second fixing arm, the first fixing arm is fixed to an end of the voice coil away from the first diaphragm, and the second fixing arm is fixed to the first side wall.

5. The sounder device according to claim 4, wherein when the support portion is integrally formed with the extension portion, the second securing arm has a shape that matches a shape of the first side wall, the second securing arm being secured in close fit with the first side wall; the supporting portion extends from the edge of the extending portion to the first side wall, the upper bottom is fixedly connected with the second fixing arm in an abutting mode, and the lower bottom is fixedly connected with the extending portion.

6. The sound production device as claimed in claim 4, wherein when the supporting portion is integrally formed with the first side wall, the second fixing arm includes two fixing ends spaced apart from each other, the two fixing ends are respectively fixed to two end portions of the first side wall, and the supporting portion is formed by extending from a middle edge of the first side wall to the extending portion; the upper bottom is fixedly connected with the first side wall, and the lower bottom is fixedly connected with the extending part in an abutting mode.