CN210168220U

CN210168220U - Loudspeaker module

Info

Publication number: CN210168220U
Application number: CN201921032358.7U
Authority: CN
Inventors: 陈志臣; 沈凯华
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-06-30
Filing date: 2019-07-03
Publication date: 2020-03-20
Anticipated expiration: 2029-07-03
Also published as: WO2021000172A1

Abstract

The utility model provides a loudspeaker module, which comprises an upper cover plate with a containing cavity, a lower cover plate and a loudspeaker monomer, wherein the upper cover plate is provided with an upper cover plate bottom wall and a sound-absorbing cotton plate extending from the upper cover plate bottom wall to the lower cover plate in the area where the loudspeaker monomer is not placed, the loudspeaker module also comprises the sound-absorbing cotton plate fixed on the sound-absorbing cotton plate, the upper cover plate bottom wall, the sound-absorbing cotton plate and the sound-absorbing cotton plate are jointly enclosed to form an air flow groove body, the lower cover plate is provided with a baffle plate, the loudspeaker module also comprises a reinforcing rib plate clamped between the baffle plate and the sound-absorbing cotton plate, and the baffle plate, the lower cover plate bottom wall and the sound-absorbing cotton, thereby the baffle lies in the air current cell body within range along the projection of upper cover plate and lower apron equipment direction and makes the air current cell body with accept between the chamber and the air current cell body with fill between the chamber all through inhaling cotton board air current intercommunication.

Description

Loudspeaker module

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic conversion field especially relates to a speaker module.

[ background of the invention ]

In a speaker device comprising a speaker, a housing and a resonance space, a gas absorbing material, also called sound absorbing material, e.g. activated carbon or zeolite, may be placed therein to improve the sound production of the speaker device. The gas absorption material in the resonance space of the loudspeaker leads to an apparent virtual enlargement (virtual environment) of the resonance space through the gas absorption and release effects, so that the resonance frequency of the loudspeaker device is reduced to a value that can be achieved with a larger resonance space, generally for improving the low frequency effect of the loudspeaker.

In general speaker, set up special region and be used for placing sound absorbing material, the research that is used for placing sound absorbing material's region to the speaker is continuously going on, and the general research direction is that the air current compliance in receiving more sound absorbing material and compromise the speaker working process simultaneously in limited space, consequently, how set up sound absorbing material place the space and how make the air current get into sound absorbing material region again through longer route, become the utility model discloses the problem that needs the solution.

[ Utility model ] content

An object of the utility model is to provide a can encapsulate more DBASS polymer nanometer powder with the speaker module of the performance of full play DBASS polymer nanometer powder.

The technical scheme of the utility model as follows:

the embodiment provides a speaker module, including have the upper cover plate of acceping the chamber, with lower apron and holding that the upper cover plate was seted up relatively accept the intracavity and be fixed in the speaker monomer of upper cover plate, the upper cover plate is provided with the upper cover plate diapire and by the upper cover plate diapire orientation in its region that does not place the speaker monomer the cotton board of inhaling the sound that the apron extends down, the lower cover plate corresponds the position of air current cell body is equipped with down the apron diapire and by the apron diapire orientation down the upper cover plate extends and butt the baffle of inhaling the cotton board of sound, the speaker module still includes the centre gripping in the baffle with inhale the reinforcement gusset between the cotton board of sound, the baffle, reinforcement gusset, upper cover plate diapire, lower cover plate diapire and inhale the cotton board of sound and constitute the filling chamber that holds sound absorbing material jointly, the baffle with reinforcement gusset follows the projection coincidence of upper cover plate and lower cover plate equipment direction just is located inhale the sound Thereby on the cotton board make accept the chamber with fill between the chamber through the ventilative gap air current intercommunication on the cotton board of sound absorption.

Preferably, the reinforcing rib plates are made of stainless steel, and the reinforcing rib plates and the baffles and the reinforcing rib plates and the sound-absorbing cotton plates are fixedly connected through double faced adhesive tapes.

Preferably, the upper cover plate includes two sets of long axis side walls which are oppositely formed and two sets of short axis side walls which are oppositely formed and connected with the two sets of long axis side walls, the forming direction of the baffle and the forming direction of the reinforcing rib plate are both consistent with the forming direction of the short axis side walls, two ends of the baffle respectively abut against the inner surfaces of the two sets of long axis side walls of the upper cover plate, and two ends of the reinforcing rib plate also respectively abut against the inner surfaces of the two sets of long axis side walls of the upper cover plate.

Preferably, the speaker module further includes a Flexible Printed Circuit (FPC) board having one end electrically connected to the speaker unit and the other end protruding from the short-axis side wall of the upper cover plate.

Preferably, inhale the cotton board both sides of sound still be equipped with the baffle cooperation is separated accept the chamber and fill the shelves post in chamber, shelves post one end is fixed inhale the cotton board surface of sound, the shelves post other end extends to the upper cover plate the major axis lateral wall internal surface.

Preferably, the orthographic projection of the bumping post on the inner surface of the upper cover plate is in the orthographic projection of the reinforcing rib plate on the inner surface of the upper cover plate.

Preferably, the lower cover plate is provided with a powder filling hole convenient for filling sound-absorbing materials, the powder filling hole is communicated with the filling cavity, and the loudspeaker module further comprises a sealing cover plate fixed on the powder filling hole for sealing.

Preferably, the lower cover plate is further provided with a leakage hole communicated with the filling cavity, and the aperture of the leakage hole is smaller than that of the powder filling hole.

Preferably, be equipped with on the upper cover plate and be convenient for the sound production through-hole of speaker monomer sound production, the sound production through-hole with it communicates with each other to accept the chamber.

The beneficial effects of the utility model reside in that:

the utility model discloses a inhale cotton board of sound and baffle cooperation and separate the accommodating space and become and accept the chamber and fill the chamber, compare in prior art have ventilative separator encapsulation sound absorbing material's the chamber of filling, the utility model discloses a fill the chamber volume bigger, sound absorbing material that can encapsulate more. The sound-absorbing cotton plate is provided with the ventilating gaps, and the loudspeaker single body in the accommodating cavity can transmit sound waves to the sound-absorbing material easily through the ventilating gaps, so that the contact area between the sound-absorbing material and the sound waves is increased, and the performance of the sound-absorbing material can be better exerted. The utility model discloses an inhale cotton board low cost of sound, easily processing, assembly process is few, is favorable to improving the production efficiency of speaker module.

[ description of the drawings ]

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

fig. 2 is a schematic perspective exploded view of a speaker module according to an embodiment of the present invention;

fig. 3 is a schematic view of a partial structure of a speaker module according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an upper cover plate in an embodiment of the present invention;

fig. 5 is a schematic structural view of a lower cover plate in an embodiment of the present invention;

fig. 6 is a cross-sectional view of the speaker module of the embodiment of the present invention along the direction a-a in fig. 1;

fig. 7 is a partial enlarged view of the assembly of the speaker module according to the embodiment of the present invention, taken along the circle B in fig. 6.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1-3, the utility model discloses a speaker module, including having upper cover plate 1 who accepts chamber 12, lower apron 2 and holding that set up relatively with upper cover plate 1 and holding in accepting the chamber 12 and be fixed in upper cover plate 1's speaker monomer 3, upper cover plate 1 is provided with upper cover plate diapire 11 and is fixed in the cotton board 5 of inhaling on upper cover plate diapire 11 in its region that does not place speaker monomer 3, lower cover plate 2 corresponds the position of inhaling cotton board 5 and is equipped with lower cover plate diapire 22 and inhales the cotton board 21 of baffle of sound cotton board 5 towards upper cover plate 1 extension and butt by lower cover plate diapire 22, speaker module still includes the reinforcement gusset 7 of centre gripping between baffle 21 and ventilative separator 5, baffle 21, reinforcement gusset 7, upper cover plate diapire 11, lower cover plate diapire 22 and inhale the cotton board 5 and constitute the filling chamber 13 that holds sound material jointly, baffle 21 and gusset 7 are along the projection coincidence of upper cover plate 1 and the lower cover plate 2 equipment direction and are located cotton board Thereby, the containing cavity 12 and the filling cavity 13 are communicated through the air flow of the air permeable gap on the sound absorption cotton plate 5.

Compared with the prior art, the utility model discloses a inhale cotton board 5 and baffle 21 cooperation and become accommodating chamber 12 and fill chamber 13 with accommodating space separation, compare in prior art in the packing chamber that has ventilative separator encapsulation sound-absorbing material, the utility model discloses a fill chamber 13 is bulky, and the sound-absorbing material 4 that can encapsulate is more. Inhale and take ventilative gap on the cotton board 5 of sound, be in and accept speaker monomer 3 in chamber 12 and easily transmit the sound wave to sound-absorbing material 4 through ventilative gap on to increased the area of contact of sound-absorbing material 4 with the sound wave, and the transmission efficiency of sound wave, can be so that sound-absorbing material 4's performance obtains better performance. The utility model discloses a inhale cotton board of sound 5 low cost, easily processing, assembly process is few, is favorable to improving the production efficiency of speaker module.

The sound-absorbing cotton board 5 used in the utility model is made of artificial inorganic fiber and absorbs sound cotton. The glass is prepared by using natural ores such as quartz sand, limestone, dolomite and the like as main raw materials and matching with chemical raw materials such as sodium carbonate, borax and the like. In a melting state, the fibers are blown by external force and thrown into flocculent fine fibers, and the fibers are crossed and intertwined with each other to form a plurality of fine gaps.

In this embodiment, the stiffening rib plate 7 is made of stainless steel, and the stiffening rib plate 7 and the baffle 21 and the stiffening rib plate and the sound-absorbing cotton plate 5 are both fixedly connected through a double-faced adhesive tape, and the sound-absorbing cotton plate 5 is fixedly connected with the upper cover plate bottom wall 11 through a double-faced adhesive tape. The two sides of the reinforcing rib plate 7 are respectively and fixedly connected with the baffle 21 and the sound-absorbing cotton plate 5 in a seamless manner, so that the reinforcing rib plate and the sound-absorbing cotton plate 5 can form a whole, and the function of reinforcing the pressure resistance is achieved. Of course, the utility model discloses not only be limited to and use the double faced adhesive tape, also can use other modes to realize the fixed of reinforcement gusset 7.

Referring to fig. 4-5, the upper cover plate 1 includes two sets of long axis sidewalls 14 disposed opposite to each other and two sets of short axis sidewalls 15 disposed opposite to and connected to the two sets of long axis sidewalls 14, the disposing direction of the baffle plate 21 and the disposing direction of the reinforcing rib plate 7 are both the same as the disposing direction of the short axis sidewalls 15, two ends of the baffle plate 21 respectively abut against the inner surfaces of the two sets of long axis sidewalls 14 of the upper cover plate 1, and two ends of the reinforcing rib plate 7 also respectively abut against the inner surfaces of the two sets of long axis sidewalls 14 of the upper cover plate 1. Baffle 21 and lower apron 2 are integrated into one piece structure, easily processing, and the orientation of seting up of baffle 21 is unanimous with the orientation of seting up of minor axis lateral wall 15, and such baffle 21 uses length shortest, can be with the packing chamber 13 space maximize of keeping apart, and baffle 21 both ends are supported respectively and are held on the major axis lateral wall 14 of upper cover plate 1, can reach better sealed effect, avoid leaking the powder.

In this embodiment, the speaker module further includes a flexible wiring board FPC board 6 having one end electrically connected to the speaker unit 3 and the other end protruding from the short-axis side wall 15 of the upper cover 1. The FPC board 6 is mainly electrically connected with the speaker single body 3, and the sound production process of the speaker single body 3 is realized through electric signals.

In this embodiment, the sound-absorbing cotton board 5 is further provided with a blocking post 16 at both sides thereof for separating the containing cavity 12 and the filling cavity 13 in cooperation with the baffle 21, one end of the blocking post 16 is fixed on the side surface of the sound-absorbing cotton board 5, and the other end of the blocking post 16 extends to the inner surface of the long-axis side wall 14 of the upper cover plate 1. The height of bumping post 16 is the same with the height of inhaling cotton board 5, inhales cotton board 5 and does not contact with the major axis lateral wall 14 of upper cover plate 1, and the setting of bumping post both can fill the gap that forms between inhaling cotton board 5 and the major axis lateral wall 14, also can bear the pressure of baffle 21 at both ends simultaneously, reduces the atress of inhaling cotton board 5, reaches the effect that supplementary inhaling cotton board 5 of sound supported baffle 21.

In this embodiment, the orthographic projection of the pillar 16 on the inner surface of the upper cover plate 1 is in the orthographic projection of the stiffener 7 on the inner surface of the upper cover plate 1. The transverse cross-sectional areas of the reinforcing rib plate 7 and the baffle plate 21 are equal, so that the consumption of consumables can be reduced as much as possible. The transverse cross section area of the retaining column 16 is superposed in the reinforcing rib plate 7, so that the requirement of supporting force can be met, and the floor area of the retaining column 16 can be reduced as much as possible.

In this embodiment, the lower cover plate bottom wall 22 is provided with a powder filling hole 221 for filling the sound-absorbing material 4, the powder filling hole 221 is communicated with the filling cavity 13, and the speaker module further comprises a sealing cover plate 8 fixed on the powder filling hole 221 for sealing. The lower cover plate 2 is further provided with a leakage hole 222 communicated with the filling cavity 13, and the aperture of the leakage hole 222 is smaller than that of the powder filling hole 221. The powder filling hole 221 is mainly used for filling the sound absorbing material 4. The leakage holes 222 are covered by a cover sheet to prevent powder leakage and ensure air flow circulation.

Further refer to fig. 6, the utility model discloses an equipment direction of speaker module is directional as arrow point X in fig. 6, and upper cover plate 1 is fixed, earlier to the fixed speaker monomer 3 of X direction, then to the fixed screen cloth of X direction on inhaling sound cotton board 5, fixes stiffening rib plate 7 on the screen cloth after that, closes apron 2 down to X direction lid again, pours into sound absorbing material 4 to the X direction through irritating powder hole 221 at last.

The above are only embodiments of the present invention, 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 module comprises an upper cover plate with an accommodating cavity, a lower cover plate and a loudspeaker single body, wherein the lower cover plate is arranged opposite to the upper cover plate, the loudspeaker single body is accommodated in the accommodating cavity and fixed on the upper cover plate, the upper cover plate is provided with an upper cover plate bottom wall and a sound absorption cotton plate fixed on the upper cover plate bottom wall in an area where the loudspeaker single body is not placed, the lower cover plate is provided with a lower cover plate bottom wall and a baffle plate which extends towards the upper cover plate from the lower cover plate bottom wall and is abutted to the sound absorption cotton plate, the loudspeaker module further comprises a reinforcing rib plate clamped between the baffle plate and the sound absorption cotton plate, the baffle plate, the reinforcing rib plate, the upper cover plate bottom wall, the lower cover plate bottom wall and the sound absorption cotton plate jointly form a filling cavity for accommodating sound absorption materials, and the baffle plate and the reinforcing rib plate are coincided along the projection of the assembling direction of the upper cover plate and the lower cover plate and accept between chamber and the filling chamber through the ventilative gap air current intercommunication on the cotton board of sound absorption.

2. The loudspeaker module according to claim 1, wherein the reinforcing rib plate is made of stainless steel, and the reinforcing rib plate and the baffle plate and the reinforcing rib plate and the sound-absorbing cotton plate are fixedly connected through double faced adhesive tapes.

3. The speaker module according to claim 2, wherein the upper cover plate includes two sets of long axis sidewalls that are formed opposite to each other and two sets of short axis sidewalls that are formed opposite to and connected to the two sets of long axis sidewalls, the forming direction of the baffle plate and the forming direction of the reinforcing rib plate are both the same as the forming direction of the short axis sidewalls, both ends of the baffle plate respectively abut against inner surfaces of the two sets of long axis sidewalls of the upper cover plate, and both ends of the reinforcing rib plate also respectively abut against inner surfaces of the two sets of long axis sidewalls of the upper cover plate.

4. The speaker module as claimed in claim 3, further comprising a Flexible Printed Circuit (FPC) board having one end electrically connected to the speaker unit and the other end protruding from the short axis side wall of the upper cover plate.

5. The speaker module as claimed in claim 3, wherein a blocking pillar is disposed on each side of the sound-absorbing cotton board and cooperating with the baffle to separate the receiving cavity and the filling cavity, one end of the blocking pillar is fixed on the outer surface of the sound-absorbing cotton board, and the other end of the blocking pillar extends to the inner surface of the sidewall of the long axis of the upper cover plate.

6. The speaker module as claimed in claim 5, wherein an orthographic projection of the bumper on the inner surface of the upper cover is in an orthographic projection of the stiffener on the inner surface of the upper cover.

7. The speaker module as claimed in claim 1, wherein the bottom cover plate has a powder filling hole for filling sound absorbing material, the powder filling hole is communicated with the filling cavity, and the speaker module further comprises a sealing cover plate fixed on the powder filling hole for sealing.

8. The speaker module as claimed in claim 7, wherein the lower cover plate further has a leakage hole communicating with the filling cavity, and the diameter of the leakage hole is smaller than that of the powder filling hole.