CN212572950U

CN212572950U - Loudspeaker

Info

Publication number: CN212572950U
Application number: CN202020749253.XU
Authority: CN
Inventors: 肖波; 令狐荣林
Original assignee: Acc Precision Electronic Shuyang Co ltd; AAC Technologies Holdings Shuyang Co Ltd
Current assignee: Acc Precision Electronic Shuyang Co ltd; AAC Technologies Holdings Shuyang Co Ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-02-19
Anticipated expiration: 2030-05-08
Also published as: WO2021223263A1

Abstract

The utility model relates to an acoustics technical field, in particular to speaker. The loudspeaker comprises a basin frame, a front cover, a magnetic circuit system and a vibration system, wherein the magnetic circuit system and the vibration system are arranged in the basin frame, the vibration system comprises a sound film, the sound film is provided with a connecting part, and a groove matched with the connecting part is formed in the front cover. The utility model provides an among the speaker, be equipped with connecting portion on the first fixed part of sound membrane, be equipped with on the protecgulum with connecting portion complex recess works as when protecgulum and basin frame are connected, connecting portion hold in the recess, connecting portion with the recess corresponds the block, and through above-mentioned mode, when sound membrane and protecgulum glued, protecgulum compression connecting portion sealed, and the compression volume through adjustment connecting portion coordinates different waterproof grade, and under the same veneer margin width, the speaker has better waterproof performance, and under the same waterproof performance, the speaker has the less veneer margin width that has, is favorable to promoting speaker audio performance.

Description

Loudspeaker

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustics technical field, in particular to speaker.

[ background of the invention ]

In the loudspeaker in the prior art, the sound film and the front cover are usually connected in a gluing mode, if the using amount of an adhesive is small and the width of a gluing edge is too small, local glue breaking can occur, so that the gluing is not firm, and the waterproof performance is influenced; in order to ensure that the waterproof performance reaches the standard, the width of the gluing edge of the sound film and the front cover needs to be increased, and the audio performance of the loudspeaker is not favorably improved.

[ summary of the invention ]

An object of the utility model is to provide a loudspeaker solves among the prior art waterproof performance not good and is unfavorable for promoting the technical problem of loudspeaker audio performance.

The technical scheme of the utility model as follows: the utility model provides a loudspeaker, the loudspeaker comprises a basin frame, a magnetic circuit system and a vibration system which are arranged on the basin frame, and a front cover which is arranged on one side of the basin frame and is close to the vibration system, the vibration system comprises a sound film which is fixed on one side of the basin frame, the sound film comprises a vibration part which is suspended on the basin frame and a first fixing part which extends from the periphery of the vibration part and surrounds the vibration part, the first fixing part is positioned between the front cover and the basin frame and is fixed with the basin frame, the first fixing part comprises a bottom surface which is fixed with the basin frame and a top surface which is arranged opposite to the bottom surface, the sound film also comprises a connecting part which is integrated with the first fixing part by injection molding and is convexly arranged on the top surface, the connecting part is in a ring shape corresponding to the first fixing part, one side of the front cover which is close to the first fixing part is concavely formed in a direction which is far away from the sound film and is in a groove corresponding to, the connecting part is correspondingly clamped with the annular groove.

Preferably, the connecting portion is a continuous annular flexible structure.

Preferably, the connecting part is a silicone ring.

Preferably, a width of the connecting portion in a direction perpendicular to a vibration direction of the vibrating portion is smaller than a width of the first fixing portion.

Preferably, the end face of the connecting part close to one end of the front cover is an arc-shaped face.

Preferably, the front cover comprises a top wall and a side wall, wherein the top wall is opposite to the vibration part and is arranged at an interval, the side wall is bent and extends from the edge of the top wall to the basin frame, the top wall is provided with a sound outlet in a penetrating mode, and the annular groove is formed in the side wall.

Preferably, the frame comprises an annular main body opposite to the front cover and supporting the sound membrane, and a supporting part formed by extending from one side of the annular main body far away from the sound membrane, and the bottom surface is fixed on one side of the annular main body far away from the supporting part.

Preferably, the magnetic circuit system includes a magnetic bowl fixed to the support portion and a magnet portion mounted on a side of the magnetic bowl close to the diaphragm, the magnet portion forms a magnetic gap, the vibration system further includes a voice coil fixed to a side of the vibration portion far away from the front cover, and an end of the voice coil far away from the diaphragm extends into the magnetic gap.

Preferably, the vibration portion includes a dome and a ring folding portion connected between the dome and the first fixing portion, the ring folding portion includes a second fixing portion connected to the dome and spaced from the first fixing portion, and an arc bending portion connected between the first fixing portion and the second fixing portion, and the dome is sandwiched between the second fixing portion and the voice coil.

Preferably, the magnet part comprises a main magnet facing the dome and auxiliary magnets located on two opposite sides of the main magnet and spaced from the main magnet, the main magnet and the auxiliary magnets form the magnetic gap, the magnetic circuit system is provided with a leakage hole in a penetrating manner, and the magnetic gap is communicated with the outside through the leakage hole.

Preferably, the leakage hole sequentially penetrates through the main magnet and the magnetic bowl along a vibration direction of the vibration part.

The beneficial effects of the utility model reside in that: the utility model provides an among the speaker, be equipped with connecting portion on the first fixed part of sound membrane, be equipped with on the protecgulum with connecting portion complex recess works as when protecgulum and basin frame are connected, connecting portion hold in the recess, connecting portion with the recess corresponds the block, and through above-mentioned mode, when sound membrane and protecgulum glued, protecgulum compression connecting portion sealed, and the compression volume through adjustment connecting portion coordinates different waterproof grade, and under the same veneer margin width, the speaker has better waterproof performance, and under the same waterproof performance, the speaker has the less veneer margin width that has, is favorable to promoting speaker audio performance.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a speaker according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the loudspeaker of FIG. 1 taken along the line A-A;

fig. 3 is a schematic diagram of a state where the front cover and the frame are not connected in the speaker according to the embodiment of the present invention;

fig. 4 is an exploded view of a speaker according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a front cover of a speaker according to an embodiment of the present invention;

fig. 6 is a schematic partial structural diagram of a speaker according to an 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 work belong to the protection scope of the present invention.

The terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the present invention provides a loudspeaker 100, please refer to fig. 1 to 6, this loudspeaker 100 includes basin frame 10, protecgulum 20, magnetic circuit 30 and vibration system 40, and magnetic circuit 30 and vibration system 40 locate in the basin frame 10, protecgulum 20 sets up in the one side that the basin frame 10 is close to vibration system 40, protecgulum 20 with the basin frame 10 is connected in order to realize the equipment of loudspeaker 100.

Referring to fig. 3 to 5, the basin stand 10 includes an annular main body 101 facing the front cover 20 and four supporting portions 102 extending from one side of the annular main body 101 away from the front cover 20, in this embodiment, the annular main body 101 is rectangular, the four supporting portions 102 are disposed, and the four supporting portions 102 are respectively located at four corners of the annular main body 101. The front cover 20 includes a top wall 201 facing the annular main body 101 and disposed at an interval, and a side wall 202 bent and extended from the edge of the top wall 201 toward the frame 10, wherein the top wall 201 is penetrated with a sound outlet 203, and a groove 204 is disposed on a side of the side wall 202 facing the frame 10.

As shown in fig. 2 to 4, the vibration system 40 includes a sound membrane 401 and a voice coil 402, the sound membrane 401 includes a vibration portion 401a suspended from the frame 10 and a first fixing portion 4012 extending from the periphery of the vibration portion 401a and surrounding the vibration portion, the vibration portion 401a includes a dome 403 and a folded ring portion 401b connected between the dome 403 and the first fixing portion 4012, the folded ring portion 401b includes a second fixing portion 4013 connected to the dome 403 and spaced from the first fixing portion 4012 and an arc-shaped bending portion 4011 connected between the first fixing portion 4012 and the second fixing portion 4013, the dome 403 is sandwiched between the second fixing portion 4013 and the voice coil 402, the first fixing portion 4012 includes a top surface 4012a and a bottom surface 4012b oppositely arranged, the bottom surface 4012b of the first fixing portion 4012 is arranged on the frame 10, specifically, the first fixing portion 4012 is disposed on a side of the annular main body 101 away from the supporting portion 102, the sound membrane 401 further includes a connecting portion 50 integrally molded with the first fixing portion 4012, the connecting portion 50 is convexly disposed on a top surface 4012a of the first fixing portion 4012, the connecting portion 50 forms a continuous ring structure around the arc-shaped bending portion 4011, the connecting portion 50 is preferably a flexible ring structure, the groove 204 on the front cover 20 is matched with the connecting portion 50, when the front cover 20 is connected with the basin frame 10, the connecting portion 50 is accommodated in the groove 204, and the two are correspondingly engaged with each other to enhance the waterproof performance when the sound membrane 401 is glued and fixed with the front cover 20, in this embodiment, a width of the connecting portion 50 in a direction perpendicular to a vibration direction of the vibration portion 401a is smaller than a width of the first fixing portion 4012. In this embodiment, when the sound membrane 401 and the front cover 20 are glued, the groove 204 extrudes the connecting portion 50 for sealing, different waterproof grades can be matched by adjusting the compression amount of the connecting portion 50, the loudspeaker has better waterproof performance under the same gluing edge width, and the loudspeaker has a smaller gluing edge width under the same waterproof performance, so that the SD of the product can be increased, and the audio performance of the loudspeaker can be improved. In an alternative embodiment, an end surface of the connecting portion 50 near one end of the front cover 20 is arc-shaped in a cross section of the connecting portion 50 along the vibration direction of the vibration portion 401 a. In an alternative embodiment, the connection 50 is a silicone ring.

Referring to fig. 2, a voice coil 402 is disposed below the diaphragm 401 to drive the diaphragm 401 to vibrate, and a dome 403 is interposed between a second fixing portion 4013 and the voice coil 402.

Referring to fig. 2, 4 and 6, the magnetic circuit system 30 includes a magnetic bowl 301 fixed to the frame 10, and a magnet 300 mounted on a side of the magnetic bowl 301 close to the sound diaphragm 401, the magnet 300 forms a magnetic gap 300a, and an end of the voice coil 402 away from the sound diaphragm 401 extends into the magnetic gap 300 a.

Further, the magnet portion 300 includes a main magnet 302 fixed to the magnetic bowl 301 and facing the dome 403, and a secondary magnet 303 disposed around the main magnet 302 and around the magnetic bowl 301, the magnetic gap 300a is formed between the main magnet 302 and at least two secondary magnets 303 disposed around the main magnet 302, and the voice coil 402 is partially suspended in the magnetic gap 300 a. The main magnet 302 comprises main magnetic steel 3021 and a main pole core 3022 overlapped on the main magnetic steel 3021, the auxiliary magnet 303 comprises an upper clamp plate 3031 surrounding the main pole core 3022 and arranged at an interval with the main pole core 3022, and auxiliary magnetic steel 3032 clamped between the upper clamp plate 3031 and the magnetic bowl 301, and the outer periphery of the upper clamp plate 305 away from the main pole core 3022 is fixed with the basin stand 10. By providing the sub-magnet 303, the magnetic field distribution of the speaker can be adjusted, so that the magnetic field intensity at each position on the voice coil 402 is relatively uniform, thereby improving the sound quality of the speaker. The main magnet 302 and the auxiliary magnet 303 are made of a permanent magnetic material, and the main pole core 3022, the upper clamp plate 3031 and the magnetic bowl 301 are made of a magnetic conductive material such as carbon steel. The magnetic circuit system 30 has a leakage hole 30a formed therethrough, and the magnetic gap 300a communicates with the outside through the leakage hole 30 a. Preferably, the leakage hole 30a penetrates through the main magnet 302 and the magnetic bowl 301 along the vibration direction of the vibration part 401a and communicates with the magnetic gap 300a, that is, penetrates through the magnetic bowl 301, the main magnet steel 3021 and the main pole core 3022 in sequence, specifically, a first central hole 301a is opened at the center of the magnetic bowl 301, a second central hole 3021a is opened at the main magnet steel 3021, a third central hole 3022a is opened at the center of the main pole core 3022, and the first central hole 301a, the second central hole 3021a and the third central hole 3022a communicate with each other in sequence in the vibration direction to form the leakage hole 30 a.

Referring to fig. 4 and 6, the speaker 100 further includes a circuit board 60 disposed on the frame 10, the circuit board 60 is disposed between the upper clamp 305 and the magnetic bowl 301, one end of the circuit board 60 is connected to the external circuit, and the other end of the circuit board 60 is connected to the voice coil 402. In an alternative embodiment, the circuit board 60 is a flexible circuit board.

The embodiment of the present invention further provides an electronic device, which includes a speaker 100, and the speaker 100 please refer to the above description, which is not described herein again.

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. A loudspeaker is characterized in that the loudspeaker comprises a basin frame, a magnetic circuit system and a vibration system which are arranged on the basin frame, and a front cover which is arranged on one side of the basin frame and close to the vibration system, the vibration system comprises a sound film which is fixed on one side of the basin frame, the sound film comprises a vibration part suspended on the basin frame and a first fixing part which extends from the periphery of the vibration part and surrounds the vibration part, the first fixing part is positioned between the front cover and the basin frame and is fixed with the basin frame, the first fixing part comprises a bottom surface fixed with the basin frame and a top surface arranged opposite to the bottom surface, the sound film further comprises a connecting part which is integrated with the first fixing part in an injection molding manner and is convexly arranged on the top surface, the connecting part is in an annular shape corresponding to the first fixing part, one side of the front cover close to the first fixing part is concavely formed into a groove corresponding to the connecting part towards the direction far away from the sound film, the connecting part is correspondingly clamped with the groove.

2. The loudspeaker of claim 1, wherein: the connecting part is a continuous annular flexible structure.

3. The loudspeaker of claim 2, wherein: the connecting part is a silica gel ring.

4. The loudspeaker of claim 1, wherein: the width of the connecting portion in a direction perpendicular to the vibration direction of the vibrating portion is smaller than the width of the first fixing portion.

5. The loudspeaker of claim 4, wherein: the end face of the connecting part close to one end of the front cover is an arc-shaped face.

6. The loudspeaker of claim 1, wherein: the front cover comprises a top wall and a side wall, wherein the top wall is opposite to the vibration part and is arranged at intervals, the side wall is bent and extended from the edge of the top wall to the edge of the basin frame, the top wall is penetrated and provided with a sound outlet, and the groove is arranged on the side wall.

7. The loudspeaker of claim 6, wherein: the basin frame include with the protecgulum is relative and support the annular main part of sound membrane and certainly annular main part is kept away from the supporting part that sound membrane one side extended formation, the bottom surface is fixed in annular main part is kept away from one side of supporting part.

8. The loudspeaker of claim 7, wherein: the magnetic circuit system comprises a magnetic bowl fixed on the supporting portion and a magnet portion installed close to one side of the sound film, a magnetic gap is formed in the magnet portion, the vibration system further comprises a voice coil fixed on one side of the front cover far away from the vibration portion, and one end, far away from the sound film, of the voice coil extends into the magnetic gap.

9. The loudspeaker of claim 8, wherein: the vibration part comprises a dome and a ring folding part connected between the dome and the first fixing part, the ring folding part comprises a second fixing part connected with the dome and arranged at an interval with the first fixing part, and an arc bending part connected between the first fixing part and the second fixing part, and the dome is clamped between the second fixing part and the voice coil.

10. The loudspeaker of claim 9, wherein: the magnet part comprises a main magnet opposite to the spherical top and auxiliary magnets which are positioned on two opposite sides of the main magnet and arranged at intervals with the main magnet, the main magnet and the auxiliary magnets form a magnetic gap, the magnetic circuit system penetrates through the main magnet and is provided with a leakage hole, and the magnetic gap is communicated with the outside through the leakage hole.

11. The loudspeaker of claim 10, wherein: the leakage hole sequentially penetrates through the main magnet and the magnetic bowl along the vibration direction of the vibration part.