CN111405433B

CN111405433B - Loudspeaker box and electronic equipment using same

Info

Publication number: CN111405433B
Application number: CN201911391780.6A
Authority: CN
Inventors: 王程良; 高尚
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-09-10
Anticipated expiration: 2039-12-30
Also published as: CN111405433A

Abstract

The invention provides a loudspeaker box and electronic equipment applying the loudspeaker box. Set up the speaker box in the electronic equipment, the speaker box includes the upper cover, lower cover and sound production monomer, the sound production monomer has the vibrating diaphragm, sound cavity before forming between upper cover and vibrating diaphragm, the upper cover has the sound channel, preceding sound cavity forms the front chamber with the sound channel, the upper cover includes roof and perisporium, the upper cover still includes the barricade, the fixed ventilative barrier member of barricade, ventilative barrier member and roof interval set up, ventilative barrier member, the barricade, perisporium and lower cover enclose into the sound-absorbing chamber, the roof includes the main part, extension and connect the connecting portion between main part and extension, connecting portion just to just the interval setting with at least partial barricade, the holding tank has been seted up in connecting portion run through, the apron of holding tank is still located including the lid to the apron, the apron just sets up just to just interval with the barricade, the apron falls into outside the lower cover at the orthographic projection part of lower cover. This scheme can increase the circulation width of back chamber air current, expands the back chamber space, improves the sound generating performance of speaker box.

Description

Loudspeaker box and electronic equipment using same

[ technical field ] A method for producing a semiconductor device

The invention belongs to the technical field of sound production devices, and particularly relates to a loudspeaker box and electronic equipment using the loudspeaker box.

[ background of the invention ]

A speaker box is an electroacoustic transducer, and is commonly used in electronic devices, and the speaker box generally includes an upper cover plate, a lower cover plate, and a sound generating unit, and the sound generating unit is accommodated in an accommodating chamber formed between the upper cover plate and the lower cover plate. In the related art, a sound absorption cavity is usually arranged in the rear cavity, and the air flow exchange of the sound absorption cavity is a key for improving the performance of the rear cavity.

[ summary of the invention ]

The invention aims to provide a loudspeaker box and an electronic device applying the loudspeaker box, which can effectively utilize and increase airflow exchange in a rear cavity, thereby improving the sound production performance of the loudspeaker box.

The technical scheme of the invention is as follows: the utility model provides a loudspeaker box, including the upper cover, with the upper cover encloses the lower cover that forms accommodating space and the sound production monomer of acceping in the accommodating space, the sound production monomer has the vibrating diaphragm, the sound production monomer will accommodating space separates front chamber and back chamber, the upper cover with the vibrating diaphragm interval forms front sound chamber, the upper cover is formed with the play sound passageway of intercommunication front sound chamber and external world, front sound chamber with play sound passageway forms the front chamber, the upper cover includes the roof that sets up with the vibrating diaphragm just at an interval and from the roof edge towards the lower cover direction extend and with lower cover assembled fixed perisporium, the upper cover still includes from perisporium one side towards the barricade of offside extension in the back chamber, the barricade is close to the one end of roof is fixed with ventilative separator, ventilative separator with the roof interval sets up, ventilative separator the barricade the perisporium reaches with ventilative separator is relative the lower cover encloses into the sound absorbing cavity of acceping sound absorbing material, the roof includes just right the main part of vibrating diaphragm, with just right extension and connection in sound absorbing cavity the main part with connecting portion between the extension, connecting portion and at least part the barricade is just to just setting up at the interval, connecting portion run through and have seted up the holding tank, the upper cover still including install in connecting portion cover the apron of holding tank, the apron with the barricade is just to just setting up at the interval, the apron is in the orthographic projection part of lower cover falls into outside the lower cover.

Further, the lower cover include with the relative diapire that just the interval set up of roof and certainly the diapire periphery court the upper cover extends and with the fixed lateral wall of perisporium equipment, the barricade with the diapire interval sets up, the lower cover still include certainly the diapire extends to the back intracavity and with the barricade corresponds fixed support wall, ventilative barrier spare the barricade support the wall the perisporium reaches the lower cover encloses into the sound-absorbing chamber.

Furthermore, the diapire run through set up with the filling hole of sound-absorbing cavity intercommunication, the speaker box still including be fixed in the diapire and correspond the sealing member that covers the filling hole.

Further, the main part is close to one side court of vibrating diaphragm the lower cover extends and is formed with the leg, the leg encloses to be located sound production monomer periphery and with sound production monomer is fixed, the leg with the barricade interval sets up.

Further, the retaining wall is kept away from one end of the lower cover is bent and extended towards the direction of keeping away from the sounding monomer to form a fixing part, and the breathable isolating piece is fixed to the fixing part.

Further, the breathable isolating piece is connected with the fixing portion in a hot melting mode.

Further, the cover plate is a steel sheet, a plastic sheet or a sheet-shaped PET.

Further, the cover plate is bonded and fixed to the main body.

Further, the orthographic projection of the supporting wall on the upper cover is totally fallen into the cover plate.

Further, an electronic device is provided, comprising a loudspeaker enclosure as described in any of the above.

The invention has the beneficial effects that: connecting portion just set up just at the interval with the barricade, and the holding tank is seted up and is set up the apron to connecting portion, can effectively utilize the space of connecting portion, has increased the circulation width of air current in the back chamber, has expanded the back chamber space, has improved the sound producing performance of speaker box.

[ description of the drawings ]

FIG. 1 is a schematic view of the overall structure of a speaker box according to the present invention;

FIG. 2 is a schematic sectional view of the loudspeaker enclosure of FIG. 1 in the direction A-A;

FIG. 3 is a schematic cross-sectional view of the loudspeaker enclosure of FIG. 1 in the direction B-B;

FIG. 4 is a schematic perspective exploded view of a first perspective of a speaker box according to the present invention;

fig. 5 is a schematic perspective exploded view of a second perspective view of the speaker box of the present invention.

[ detailed description ] embodiments

The invention is further described with reference to the following figures and embodiments.

An electronic device is provided, wherein a speaker box is arranged in the electronic device, as shown in fig. 1-5, the speaker box comprises an upper cover 1, a lower cover 2 enclosing with the upper cover 1 to form a containing space, and a sound-generating unit 3 contained in the containing space, the sound-generating unit 3 has a diaphragm 31, the sound-generating unit 3 divides the containing space into a front cavity 100 and a rear cavity 200, the upper cover 1 and the diaphragm 31 are separated to form a front sound cavity 110, the upper cover 1 is formed with a sound-generating channel 120 communicating the front sound cavity 110 with the outside, the front sound cavity 110 and the sound-generating channel 120 form the front cavity 100, the upper cover 1 comprises a top wall 11 opposite to and separated from the diaphragm 31 and a peripheral wall 12 extending from the edge of the top wall 11 toward the direction of the lower cover 2 and assembled and fixed with the lower cover 2, the upper cover 1 further comprises a retaining wall 13 extending from one side of the peripheral wall 12 toward the opposite side into the rear cavity 200, one end of the retaining wall 13 close to the top wall 11 is fixed with a ventilation spacer 4, the breathable isolation piece 4 and the top wall 11 are arranged at intervals, the breathable isolation piece 4, the retaining wall 13, the peripheral wall 12 and the lower cover 2 opposite to the breathable isolation piece 4 are enclosed to form a sound absorption cavity 300 for accommodating sound absorption materials, the top wall 11 comprises a main body part 111 facing the vibrating diaphragm 31, an extending part 112 facing the sound absorption cavity 300 and a connecting part 113 connected between the main body part 111 and the extending part 112, the connecting part 113 and at least part of the retaining wall 13 are arranged at intervals, the connecting part 113 is penetrated and provided with an accommodating groove 1131, the upper cover 1 further comprises a cover plate 14 installed on the connecting part 113 and covering the accommodating groove 1131, the cover plate 14 is arranged at intervals facing the retaining wall 13, and the orthographic projection part of the cover plate 14 on the lower cover 2 falls outside the lower cover 2.

Connecting portion 113 can be used for fixed PCB on the one hand, and on the other hand connecting portion 113 just sets up with barricade 13 just and the interval, and connecting portion 113 sets up holding tank 1131 and sets up apron 14, can effectively utilize connecting portion 113's space, has increased the circulation width of air current in the rear chamber 200, has expanded rear chamber 200 space, has improved the sound generating performance of speaker box.

In this embodiment, the lower cover 2 includes a bottom wall 21 opposite to the top wall 11 and spaced apart from the top wall, and a side wall 22 extending from the periphery of the bottom wall 21 to the upper cover 1 and assembled and fixed with the peripheral wall 12, the retaining wall 13 is spaced apart from the bottom wall 21, the lower cover 2 further includes a supporting wall 23 extending from the bottom wall 21 into the rear cavity 200 and fixed corresponding to the retaining wall 13, and the ventilation partition 4, the retaining wall 13, the supporting wall 23, the peripheral wall 12 and the lower cover 2 define a sound-absorbing cavity 300. The bottom wall 21 is provided with a filling hole 211 communicated with the sound absorption cavity 300 in a penetrating way, and the loudspeaker box further comprises a sealing element 24 which is fixed on the bottom wall 21 and correspondingly covers the filling hole 211. The sound absorbing chamber 300 is filled with a sound absorbing material, and the sound absorbing material is sealed with the sealing member 24 after being filled into the sound absorbing chamber 300 from the filling hole 211.

Main part 111 is close to one side of vibrating diaphragm 31 and extends towards lower cover 2 and is formed with enclosure 1111, and enclosure 1111 encloses and locates the free 3 periphery of sound production and fixed with sound production free body 3, and enclosure 1111 sets up with 13 intervals of barricade, and main part 111, enclosure 1111 and vibrating diaphragm 31 enclose into preceding sound cavity 110.

In order to facilitate the installation of the air permeable partition 4, in the present embodiment, one end of the retaining wall 13 away from the lower cover 2 is bent and extended towards the direction away from the sound-emitting unit 3 to form a fixing portion 131, and the air permeable partition 4 is fixed to the fixing portion 131. The air-permeable partition 4 is thermally fused to the fixing portion 131.

In the present embodiment, the cover plate 14 is a steel sheet, and in other embodiments, the cover plate 14 may be a plastic sheet or a sheet PET; the cover plate 14 is fixedly bonded with the main body 111; preferably, the supporting wall 23 falls entirely within the cover plate 14 in the orthographic projection of the cover 1.

While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims

1. A loudspeaker box comprises an upper cover, a lower cover and a sound production monomer, wherein the lower cover and the upper cover enclose to form an accommodating space, the sound production monomer is accommodated in the accommodating space, the sound production monomer is provided with a vibrating diaphragm, the accommodating space is divided into a front cavity and a rear cavity by the sound production monomer, the upper cover and the vibrating diaphragm form a front sound cavity at intervals, the upper cover is provided with a sound outlet channel communicated with the front sound cavity and the outside, the front sound cavity and the sound outlet channel form the front cavity, the upper cover comprises a top wall and a peripheral wall, the top wall is opposite to the vibrating diaphragm and arranged at intervals, the peripheral wall extends from the edge of the top wall to the direction of the lower cover and is assembled and fixed with the lower cover, the loudspeaker box is characterized in that the upper cover further comprises a retaining wall, the retaining wall extends from one side of the peripheral wall to the opposite side to the rear cavity, a breathable isolating piece is fixed at one end, close to the top wall, and the breathable isolating piece is arranged at intervals with the top wall, ventilative separator the barricade the perisporium reaches with ventilative separator is relative the lower cover encloses into the sound absorbing cavity of acceping sound absorbing material, the roof includes just right the main part of vibrating diaphragm, with just right extension and connection in sound absorbing cavity the main part with connecting portion between the extension, connecting portion and at least part the barricade is just to just setting up at the interval, connecting portion run through and have seted up the holding tank, the upper cover still including install in connecting portion cover the apron of holding tank, the apron with the barricade is just to just setting up at the interval, the apron is in the orthographic projection part of lower cover falls into outside the lower cover.

2. The speaker box according to claim 1, wherein the bottom cover includes a bottom wall opposite to the top wall and spaced apart from the top wall, and a side wall extending from the periphery of the bottom wall toward the top cover and assembled and fixed with the peripheral wall, the retaining wall is spaced apart from the bottom wall, the bottom cover further includes a supporting wall extending from the bottom wall into the rear cavity and fixed corresponding to the retaining wall, and the air-permeable partition, the retaining wall, the supporting wall, the peripheral wall and the bottom cover enclose the sound-absorbing cavity.

3. The loudspeaker box of claim 2, wherein the bottom wall has a filling hole formed therethrough in communication with the sound-absorbing chamber, and further comprising a sealing member secured to the bottom wall and covering the filling hole.

4. The speaker box of claim 1, wherein a wall is formed by extending a side of the main body portion close to the diaphragm toward the bottom cover, the wall is disposed around the sound generating unit and fixed to the sound generating unit, and the wall is spaced from the retaining wall.

5. The speaker box as claimed in claim 1, wherein the retaining wall is bent and extended from an end thereof away from the bottom cover in a direction away from the sound generating unit to form a fixing portion, and the air-permeable partition is fixed to the fixing portion.

6. A loudspeaker enclosure according to claim 5, wherein the air-permeable partition is heat-fused to the fixing portion.

7. A loudspeaker enclosure according to claim 1, wherein the cover plate is a sheet of steel, plastic or sheet PET.

8. A loudspeaker enclosure according to claim 7, wherein the cover plate is adhesively secured to the body portion.

9. A loudspeaker enclosure according to claim 2, wherein the orthographic projection of the support wall on the cover falls entirely within the cover.

10. An electronic device, characterized in that it comprises a loudspeaker enclosure according to any of claims 1-9.