CN212936099U

CN212936099U - Loudspeaker box

Info

Publication number: CN212936099U
Application number: CN202021346162.8U
Authority: CN
Inventors: 丁健华; 吴树文; 胡橙; 沈凯华
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-04-09
Anticipated expiration: 2030-07-09
Also published as: WO2022006952A1

Abstract

The utility model provides a loudspeaker box, including the casing that has accommodating space and accommodate the speaker monomer that is fixed in the casing, the casing includes the diapire, the roof that is relative with the diapire and interval arrangement, and from the lateral wall that the diapire is buckled to the roof and is extended, the speaker monomer includes the basin frame and is fixed in vibration system and the magnetic circuit of basin frame relative both sides, the loudspeaker box still includes to cover and locates the ventilative separation net of extension portion one end of keeping away from the vibration system, ventilative separation net and magnetic circuit interval arrangement; the loudspeaker unit is provided with a leakage part which is communicated with the air of the sound absorption cavity through the breathable isolation net. Through installing ventilative separation net on the basin frame, realize that the speaker monomer keeps apart, compare in current speaker monomer isolation scheme, the utility model discloses a speaker monomer isolation scheme needs the spare part of assembly still less, can improve the assembly efficiency of speaker box.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustics device technical field especially relates to a loudspeaker box.

[ background of the invention ]

In the prior art, the loudspeaker is glued with the shell through the plastic ring, and then the breathable isolation net is glued with the plastic ring to form a full-filling single isolation scheme, so that the resonance frequency F0 of the loudspeaker is reduced, the distortion is improved, and the sound production quality of the loudspeaker box is improved.

Therefore, it is necessary to provide a speaker box capable of improving the assembling efficiency of the speaker in the speaker unit isolation scheme.

[ Utility model ] content

An object of the utility model is to provide a speaker box through ventilative separation net direct with speaker monomer connection realization monomer isolation.

The technical scheme of the utility model as follows:

a loudspeaker box comprises a shell with an accommodating space and a loudspeaker single body accommodated and fixed in the shell, wherein the shell comprises a bottom wall, a top wall opposite to the bottom wall and arranged at intervals, and a side wall bent and extended from the bottom wall to the top wall, and the accommodating space is defined by the bottom wall, the side wall and the top wall;

the bottom wall is convexly provided with a separation wall towards the direction close to the top wall, and the separation wall divides the accommodating space into an accommodating cavity for accommodating the loudspeaker monomer and a sound absorbing cavity for accommodating sound absorbing materials; the loudspeaker single body is supported and fixed on the isolation wall;

the loudspeaker unit comprises a frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are fixed on two opposite sides of the frame; the loudspeaker box also comprises a breathable isolation net which is covered at one end of the extension part far away from the vibration system, and the breathable isolation net and the magnetic circuit system are arranged at intervals; the loudspeaker unit is provided with a leakage part, and the leakage part is communicated with the sound absorption cavity through the breathable isolation net.

Optionally, the magnetic circuit system includes a magnetic bowl disposed at an interval with the vibration system and fixed to the extension portion, the magnetic bowl is disposed at an interval with the breathable isolation net, the magnetic bowl, the breathable isolation net and the extension portion together enclose a leakage space, and the leakage portion penetrates through the magnetic bowl and is disposed corresponding to the leakage space.

Optionally, the magnetic circuit system further includes a magnetic steel assembly fixed to one side of the magnetic bowl close to the vibration system, the magnetic steel assembly includes a main magnetic steel and a side magnetic steel surrounding the main magnetic steel, and the frame further includes a protruding portion extending from the body portion to the inside of the speaker unit and covering the protruding portion and being located the side magnetic steel.

Optionally, one side of the partition wall close to the speaker unit is recessed away from the speaker unit to form a support step, and the vibration system is fixed to the support step in an abutting mode.

Optionally, the vibration system includes a support fixed to the frame and a diaphragm fixed to a side of the support away from the frame, and a periphery of the diaphragm is clamped and fixed between the support step and the support; the vibrating diaphragm and the bottom wall form a front sound cavity at an interval, and the side wall is provided with a sound outlet channel communicated with the front sound cavity and the outside.

Optionally, a filling hole is formed through the bottom wall or the top wall, the filling hole is communicated with the sound absorbing cavity, and the sound absorbing material is filled into the sound absorbing cavity through the filling hole.

Optionally, the speaker box further includes a cover plate attached to the bottom wall or the top wall and covering the filling hole.

Optionally, the bottom wall or the top wall is provided with a leakage hole in a penetrating manner, the leakage hole is communicated with the sound absorption cavity, and the speaker box further comprises a breathable mesh cloth attached to the bottom wall or the top wall and covering the leakage hole.

Optionally, the side wall is penetrated to form a through hole, and the speaker box further includes a circuit board electrically connecting the speaker unit and an external circuit.

Optionally, the breathable barrier web is injection molded or hot melt molded over the extension.

The beneficial effects of the utility model reside in that: form the extension and make the extension enclose and locate magnetic circuit week side to being close to magnetic circuit through the free basin frame of speaker to installing ventilative separation net on the extension of basin frame, realizing the speaker monomer and keeping apart, comparing in current speaker monomer isolation scheme, the utility model discloses a speaker monomer isolation scheme, the spare part that needs the assembly still less can improve speaker box's assembly efficiency.

[ description of the drawings ]

FIG. 1 is a schematic diagram of one embodiment of a loudspeaker enclosure;

FIG. 2 is an exploded view of the speaker box of FIG. 1;

fig. 3 is an exploded view of a part of the structure of the speaker unit of fig. 2;

fig. 4 is a top view of the speaker box of the present invention;

FIG. 5 is a cross-sectional view of the speaker box of FIG. 4 at A-A;

FIG. 6 is an enlarged view of FIG. 5 at speaker box B;

fig. 7 is a cross-sectional view at C-C in fig. 4.

[ detailed description ] embodiments

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

Referring to fig. 1 to 7, the speaker box includes a housing 1 having an accommodating space 11 and a speaker unit 2 accommodated and fixed in the housing 1, the housing 1 includes a bottom wall 12, a top wall 13 opposite to and spaced from the bottom wall 12, and a side wall 14 extending from the bottom wall 12 to the top wall 13, the bottom wall 12, the side wall 14, and the top wall 13 enclose the accommodating space 11; the bottom wall 12 is convexly provided with a partition wall 15 towards the direction close to the top wall 13, and the partition wall 15 divides the accommodating space 11 into an accommodating cavity 111 for accommodating the loudspeaker single body and a sound absorbing cavity 112 for accommodating sound absorbing materials; the loudspeaker single body 2 is supported and fixed on the separation wall 15; the loudspeaker unit comprises a frame 3, a vibration system 4 and a magnetic circuit system 5, wherein the vibration system 4 and the magnetic circuit system 5 are fixed on two opposite sides of the frame 3, the frame 3 comprises a body part 31 clamped between the vibration system 4 and the magnetic circuit system 5, and an extension part 32 extending from the periphery of the body part 31 to the position close to the magnetic circuit system 5, and the extension part 32 is surrounded on the periphery of the magnetic circuit system 5; the loudspeaker box also comprises a breathable isolation net 6 which is covered at one end of the extension part 32 far away from the vibration system 4, and the breathable isolation net 6 and the magnetic circuit system 5 are arranged at intervals; the speaker unit 2 is provided with a leakage part which is in air communication with the sound absorption cavity 112 through the air permeable isolation net 6. The monomer isolation scheme of installing ventilative separation net 6 on basin frame 3 of above-mentioned scheme compares in current monomer isolation scheme, and the structure is simpler, and the movable part that needs the erection joint in the assembling process still less reduces the assembly degree of difficulty, can improve operating personnel's assembly efficiency to a certain extent, and then improves the productivity of speaker box.

The magnetic circuit system 5 comprises a magnetic bowl 51 which is arranged at an interval with the vibration system 4 and fixed on the extending part, the magnetic bowl 51 is arranged at an interval with the ventilating isolation net 6, the magnetic bowl 51, the ventilating isolation net 6 and the extending part 32 jointly enclose and close to form a leakage space 22, the leakage part penetrates through the magnetic bowl 51 and is arranged corresponding to the leakage space 22, and the leakage part is communicated with the sound absorption cavity 112 through the ventilating isolation net 6, so that the purposes of reducing the resonance frequency F0 of the loudspeaker, improving distortion and improving the sound quality of the loudspeaker box are achieved.

The magnetic circuit system 5 further includes a magnetic steel assembly 52 fixed to the magnetic bowl 51 near one side of the vibration system 4, the magnetic steel assembly 52 includes a main magnetic steel 521 and a side magnetic steel 522 surrounding the main magnetic steel 521, and the frame 3 further includes a protrusion 5221 extending from the body 31 to the inside of the speaker unit 2 and covering the side magnetic steel 522. When the protruding portion 5221 of the frame is made of metal, it can play a role of magnetic conduction.

One side of the isolation wall 15 close to the speaker unit 2 is recessed towards the side far away from the speaker unit 2 to form a supporting step 151, and the vibration system 4 is abutted and fixed on the supporting step 151, so that the front sound cavity 16 is formed between the vibration system 4 and the bottom wall 12 at an interval.

The vibration system 4 comprises a bracket 41 fixed on the frame 3 and a vibrating diaphragm 42 fixed on one side of the bracket 41 far away from the frame 3, and the periphery of the vibrating diaphragm 42 is clamped and fixed between the supporting step 151 and the bracket 41; the diaphragm 42 and the bottom wall 12 form a front sound cavity 16 at an interval, and the side wall 14 is opened with a sound outlet channel 141 communicating the front sound cavity 16 and the outside.

The bottom wall 12 or the top wall 13 is provided with filling holes 121 in a penetrating manner, the filling holes 121 are communicated with the sound absorption cavity 112, and the sound absorption material is filled into the sound absorption cavity 112 through the filling holes 121. Preferably, the speaker box further includes a cover plate 7 attached to the bottom wall 12 or the top wall 13 and covering the filling hole 121, so as to prevent the sound-absorbing material from leaking from the sound-absorbing cavity 112 and ensure the stability of the speaker box in long-term operation. Of course, the filling opening 121 may be disposed on the top wall 13 according to a specific application. The present embodiment does not limit the position of the filling hole 121 as long as the sound absorbing material can be filled into the sound absorbing cavity 112.

The top wall 13 is provided with a leakage hole 131, the leakage hole 131 is communicated with the sound absorption cavity 112, and the leakage part can be communicated with the leakage hole 131 through the breathable isolation net 6 and the sound absorption cavity 112, so that the sound pressure of the loudspeaker during working is balanced, and the working stability of the loudspeaker is guaranteed. Preferably, the speaker box further includes the ventilative screen cloth 8 that pastes and locate roof 13 and cover the leakage hole 132, and ventilative screen cloth 8 sets up on the one hand and can pass through the balanced acoustic pressure of air current, and on the other hand still can block external pollutant and get into sound-absorbing cavity 112 to the sound quality of guarantee speaker box.

The side wall 14 is formed with a through hole 142 therethrough, and the speaker box further includes a circuit board 9 electrically connecting the speaker unit with an external circuit via the through hole 142.

The breathable isolation net 6 is formed on the extension portion 32 through injection molding or hot melting, the connection process is mature, and the connection reliability is high.

To sum up, extend to being close to magnetic circuit and form the extension and make the extension enclose and locate magnetic circuit week side through the free basin frame of speaker to install ventilative separation net on the extension of basin frame, realize the speaker monomer and keep apart, compare in current speaker monomer isolation scheme, the utility model discloses a speaker monomer isolation scheme, the spare part that needs the assembly still less, can improve the assembly efficiency of speaker box.

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 box is characterized by comprising a shell with an accommodating space and a loudspeaker single body accommodated and fixed in the shell, wherein the shell comprises a bottom wall, a top wall opposite to the bottom wall and arranged at intervals, and a side wall bent and extended from the bottom wall to the top wall, and the accommodating space is defined by the bottom wall, the side wall and the top wall;

2. A loudspeaker enclosure as claimed in claim 1, wherein: the magnetic circuit system comprises a magnetic bowl which is arranged at an interval with the vibration system and fixed on the extension part, the magnetic bowl is arranged at an interval with the breathable isolation net, the magnetic bowl, the breathable isolation net and the extension part jointly enclose to form a leakage space, and the leakage part penetrates through the magnetic bowl and is arranged corresponding to the leakage space.

3. A loudspeaker enclosure as claimed in claim 2, wherein: the magnetic circuit system further comprises a magnetic steel component fixed on one side of the magnetic bowl close to the vibration system, the magnetic steel component comprises main magnetic steel and edge magnetic steel surrounding the main magnetic steel, and the basin stand further comprises a protruding portion extending from the body portion to the inside of the loudspeaker single body and covering the protruding portion and arranged on the edge magnetic steel.

4. A loudspeaker enclosure as claimed in claim 2, wherein: the side of the isolation wall close to the loudspeaker monomer is far away from the loudspeaker monomer and is sunken to form a supporting step, and the vibration system is abutted and fixed on the supporting step.

5. A loudspeaker enclosure as claimed in claim 4, wherein: the vibration system comprises a support fixed on the basin frame and a vibrating diaphragm fixed on one side of the support, which is far away from the basin frame, and the periphery of the vibrating diaphragm is clamped and fixed between the support step and the support; the vibrating diaphragm and the bottom wall form a front sound cavity at an interval, and the side wall is provided with a sound outlet channel communicated with the front sound cavity and the outside.

6. A loudspeaker enclosure as claimed in claim 1, wherein: the diapire or the roof runs through and has seted up the filling hole, the filling hole with sound-absorbing cavity intercommunication, sound-absorbing material warp the filling hole fill extremely sound-absorbing cavity.

7. A loudspeaker enclosure as claimed in claim 6, wherein: the loudspeaker box also comprises a cover plate which is attached to the bottom wall or the top wall and covers the filling hole.

8. The speaker box as claimed in claim 1, wherein a leakage hole is formed through the bottom wall or the top wall, the leakage hole is communicated with the sound-absorbing chamber, and the speaker box further comprises a breathable mesh cloth attached to the bottom wall or the top wall and covering the leakage hole.

9. A loudspeaker enclosure as claimed in claim 1, wherein: the side wall penetrates through to form a through hole, and the loudspeaker box further comprises a circuit board electrically connected with the loudspeaker monomer and an external circuit.

10. A loudspeaker enclosure as claimed in claim 1, wherein: the breathable isolation net is formed on the extending part in an injection molding mode or a hot melting mode.