CN210093520U

CN210093520U - Loudspeaker box

Info

Publication number: CN210093520U
Application number: CN201921023095.3U
Authority: CN
Inventors: 张古清
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: WO2021000142A1

Abstract

The utility model provides a loudspeaker, including basin frame, the vibration system and the drive that are used for vibrating the sound production the magnetic circuit of vibration system vibration, magnetic circuit is including being fixed in the vice utmost point core and the magnetism bowl of basin frame, the magnetism bowl with the cooperation of basin frame forms accommodating space, vice utmost point core will accommodating space separates into and is close to vibration system's upper space with be close to the lower floor's space of magnetism bowl, vice utmost point core is including being close to accommodating space's inboard edge and with the outside edge that inboard edge set up relatively, the outside edge is fixed in the basin frame, inboard edge is close to the sunken breach that is formed with of outside edge direction, the breach intercommunication the upper space with lower floor's space. The utility model also provides a speaker box including above-mentioned speaker. The utility model discloses a speaker can make the air of first vibrating diaphragm below can follow the unobstructed outflow of breach department effectively improves the piano noise of speaker.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric conversion technical field especially relates to a speaker and speaker box.

[ 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, the functions of a mobile phone are very diverse, one of which is a high-quality music function, and thus, a speaker for playing sound is widely applied to the current smart mobile devices.

In the related art, the loudspeaker comprises a vibration system and a magnetic circuit system, the vibration system comprises a first vibrating diaphragm and a voice coil, the magnetic circuit system comprises an auxiliary pole core, the auxiliary pole core is located below the first vibrating diaphragm, the distance between the auxiliary pole core and the voice coil is close, and when the first vibrating diaphragm vibrates, air below the first vibrating diaphragm is blocked and circulates unsmoothly, so that piano noise is generated, and the auditory effect is influenced.

Therefore, there is a need to provide a new speaker and speaker box to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a can make speaker and speaker box that first diaphragm below air can unobstructed outflow.

The utility model provides a loudspeaker, including basin frame, the vibration system and the drive that are used for vibrating the sound production the magnetic circuit of vibration system vibration, magnetic circuit is including being fixed in the vice utmost point core and the magnetism bowl of basin frame, the magnetism bowl with the basin frame cooperation forms accommodating space, vice utmost point core will accommodating space separates into to be close to vibration system's upper space and lower floor's space, vice utmost point core is including being close to accommodating space's inboard edge and with the outside edge that inboard edge set up relatively, the outside edge is fixed in the basin frame, inboard edge is to being close to the sunken breach that is formed with of outside edge direction, the breach intercommunication upper space with lower floor's space.

Preferably, the number of the notches is multiple, and the notches are uniformly arranged at intervals.

Preferably, the basin frame includes the roof, with relative diapire that sets up of roof and connection the roof with the lateral wall of diapire, the lateral wall includes the long lateral wall that two parallel intervals set up and locates the both ends of long lateral wall are connected two short lateral wall of long lateral wall, long lateral wall with short lateral wall encloses into end to end in proper order accommodating space.

Preferably, the auxiliary pole core is including being fixed in the long limit of long lateral wall and being fixed in the minor face of short lateral wall, the long limit with long lateral wall one-to-one sets up, the minor face with short lateral wall one-to-one sets up.

Preferably, the notch is provided on the long side.

Preferably, the magnetic circuit system further comprises a magnetic bowl fixed on the basin frame and exposed outside the basin frame, a main magnetic steel assembled in the center of the magnetic bowl, a main pole core attached to the surface of the main magnetic steel, and an auxiliary magnetic steel annularly arranged around the main magnetic steel, wherein the auxiliary pole core is attached to the surface of the auxiliary magnetic steel, a magnetic gap is formed between the main magnetic steel and the auxiliary magnetic steel at an interval, and the lower space comprises the magnetic gap.

Preferably, vibration system is including being used for vibrating the first vibrating diaphragm of sound production, being located the below drive of first vibrating diaphragm vibrates the voice coil loudspeaker voice coil of sound production and being located the below elastic support of voice coil loudspeaker voice coil's elastic support spare, first vibrating diaphragm is fixed in the roof, elastic support spare is fixed in the diapire, the voice coil loudspeaker voice coil suspension in the magnetic gap.

Compared with the prior art, the utility model provides an in the speaker, the auxiliary pole core is including being close to accommodating space's inboard edge and with the outside edge that inboard edge set up relatively, outside edge inlays to be located in the basin frame, inboard edge is to being close to the sunken breach that is formed with of outside edge direction, the breach intercommunication the upper space with lower floor's space makes the air of first vibrating diaphragm below can be unobstructed follow the breach department flows, can effectively avoid the production of piano murmurmur, promotes the acoustic performance of speaker.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is an exploded schematic view of a speaker box according to the present invention;

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

FIG. 3 is an exploded view of the speaker of FIG. 2;

FIG. 4 is a front view of the secondary pole core shown in FIG. 3;

fig. 5 is a cross-sectional view of the speaker shown in fig. 2 taken along line IV-IV.

[ 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.

Referring to fig. 1, the present invention provides a speaker box 200, the speaker box 200 includes an upper cover 210, a lower shell 220 and a speaker 100, the upper cover 210 and the lower shell 220 cooperate to form a receiving space, the speaker 100 is received in the receiving space, the upper cover 210 is provided with a sound outlet 230 communicated with the outside, and the sound generated by the speaker 100 is transmitted to the outside through the sound outlet 230.

Referring to fig. 2-5, the speaker 100 includes a frame 1, a vibration system 2 and a magnetic circuit system 3.

Basin frame 1 is rectangle frame column structure, its include roof 11, with relative diapire 12 that sets up of roof 11 and connection roof 11 with the lateral wall 13 of diapire 12, lateral wall 13 includes the long lateral wall 131 that two parallel intervals set up and locates the both ends of long lateral wall 131 are connected two short lateral wall 132 of long lateral wall 131, long lateral wall 131 reaches short lateral wall 132 connects end to end in proper order.

Vibration system 2 is used for vibrating the sound production, and is concrete, vibration system 2 is including the first vibrating diaphragm 21 that is used for vibrating the sound production, is located the below drive of first vibrating diaphragm 21 vibrates the voice coil loudspeaker voice coil 22 of sound production and is located the below elastic support of voice coil loudspeaker voice coil 22 the elastic support piece 23 of voice coil loudspeaker voice coil 22.

The first diaphragm 21 is fixed to the top wall 11, one end of the elastic supporting member 23 is fixed to the bottom wall 12, and the other end elastically supports the voice coil 22. Further, the number of the elastic supporting members 23 is two, two of the elastic supporting members 23 are symmetrically arranged at two opposite sides of the basin stand 1, and specifically, the elastic supporting members 23 are arranged at one side of the short side wall 132.

The elastic supporting member 23 includes a flexible circuit board 231 and a second diaphragm 232 stacked on the flexible circuit board 231, one end of the second diaphragm 232 is fixed to the voice coil 22, and the other end is fixed to the bottom wall 12. The flexible circuit board 231 is used for supporting the voice coil 22 and for electrically connecting the voice coil 22 with an external power supply; the second diaphragm 232 is used to reinforce the vibration of the first diaphragm 21 and prevent the polarization of the first diaphragm 21.

The magnetic circuit system 3 is used for driving the vibration system 2 to vibrate and produce sound. Specifically, the magnetic circuit system 3 includes a magnetic bowl 31 exposed outside the basin frame 1, a main magnetic steel 32 assembled in the center of the magnetic bowl 31, a main pole core 33 attached to the surface of the main magnetic steel 32, an auxiliary magnetic steel 34 annularly arranged around the main magnetic steel 32, and an auxiliary pole core 35 attached to the surface of the auxiliary magnetic steel 34. The main magnetic steel 32 and the auxiliary magnetic steel 34 form a magnetic gap at an interval, and the voice coil 22 is suspended in the magnetic gap. The main pole core 33 and the auxiliary pole core 35 are made of magnetic conductive materials and have a magnetic conductive effect.

The magnetic bowl 31 is fixedly connected with the basin stand 1 and matched with the basin stand to form an accommodating space 10,

the auxiliary pole core 35 is fixedly connected with the basin stand 1, and divides the accommodating space 10 into an upper space 20 close to the vibration system 2 and a lower space 30 close to the magnetic bowl 31, and the lower space 30 includes the magnetic gap.

The secondary pole core 35 includes two long sides 351 disposed at opposite intervals and two short sides 352 disposed at one end of the long sides 351 and connected to the two long sides 351, the long sides 351 and the short sides 352 are sequentially connected end to form a frame-shaped structure, the long sides 351 are fixedly connected to the long side walls 131, and the short sides 352 are fixedly connected to the short side walls 132.

Further, the long side 351 includes an inner side edge 3511 close to the accommodating space 10 and an outer side edge 3512 opposite to the inner side edge 3511, the outer side edge 3512 is fixed in the basin stand 1, specifically, the outer side edge 3512 is embedded in the side wall 13, a plurality of notches 3513 are formed in the inner side edge 3511 in a concave manner in a direction close to the outer side edge 3512, the notches 3513 communicate the upper layer space 20 and the lower layer space 30, and the notches 3513 are uniformly spaced along the inner side edge 3511.

When the loudspeaker 100 is powered on to work, the first vibrating diaphragm 21 vibrates up and down along the height direction of the basin frame 1, air in the upper space 20 can smoothly flow out of the notch 3513 into the lower space 30, so that air below the first vibrating diaphragm 21 can smoothly flow out of the notch 3513, piano noise can be effectively avoided, and the acoustic performance of the loudspeaker 100 is improved.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a loudspeaker, includes basin frame, is used for vibrating the vibration system and the drive of sound production the magnetic circuit of vibration system vibration, magnetic circuit is including being fixed in the vice utmost point core and the magnetism bowl of basin frame, the magnetism bowl with the cooperation of basin frame forms accommodating space, vice utmost point core will accommodating space separates to become to be close to vibration system's upper space with be close to the lower floor space of magnetism bowl, its characterized in that, vice utmost point core including being close to accommodating space's inboard edge and with the outside edge that inboard edge set up relatively, the outside edge is fixed in the basin frame, inboard edge is to being close to the sunken breach that is formed with of outside edge direction, the breach intercommunication upper space with lower floor space.

2. The loudspeaker of claim 1, wherein the number of the notches is plural, and the plural notches are arranged at regular intervals.

3. The loudspeaker of claim 1, wherein the frame comprises a top wall, a bottom wall opposite to the top wall, and side walls connecting the top wall and the bottom wall, the side walls comprise two long side walls arranged in parallel at intervals, and two short side walls arranged at two ends of the long side walls and connected with the two long side walls, and the long side walls and the short side walls are sequentially connected end to form the accommodating space.

4. The speaker of claim 3, wherein the secondary pole piece includes long sides fixed to the long side walls and short sides fixed to the short side walls, the long sides being in one-to-one correspondence with the long side walls and the short sides being in one-to-one correspondence with the short side walls.

5. The loudspeaker of claim 4, wherein the notch is disposed on the long side.

6. The loudspeaker of claim 3, wherein the magnetic circuit system further comprises a magnetic bowl fixed to the frame and exposed outside the frame, a main magnetic steel assembled in the center of the magnetic bowl, a main pole core attached to the surface of the main magnetic steel, and an auxiliary magnetic steel surrounding the main magnetic steel, wherein the auxiliary pole core is attached to the surface of the auxiliary magnetic steel, the main magnetic steel and the auxiliary magnetic steel form a magnetic gap at an interval, and the lower space comprises the magnetic gap.

7. The loudspeaker of claim 6, wherein the vibration system comprises a first diaphragm for vibrating and generating sound, a voice coil located below the first diaphragm for driving the first diaphragm to vibrate and generate sound, and an elastic support member located below the voice coil for elastically supporting the voice coil, wherein the first diaphragm is fixed to the top wall, the elastic support member is fixed to the bottom wall, and the voice coil is suspended in the magnetic gap.

8. A loudspeaker enclosure comprising an upper cover, a lower shell and a loudspeaker according to any one of claims 1 to 7, wherein the upper cover and the lower shell cooperate to form a receiving space, and the loudspeaker is received in the receiving space.