CN211128164U

CN211128164U - Large-amplitude loudspeaker

Info

Publication number: CN211128164U
Application number: CN202020091660.6U
Authority: CN
Inventors: 董庆宾; 张俊利; 朱威
Original assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Current assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-07-28
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a big amplitude speaker, including magnetic circuit assembly, voice coil loudspeaker voice coil, basin frame subassembly and supporting component, in magnetic circuit assembly located basin frame subassembly, during magnetic circuit assembly was located to the voice coil loudspeaker voice coil, supporting component connected basin frame subassembly and voice coil loudspeaker voice coil, magnetic circuit assembly included the yoke, was equipped with the through-hole that is used for dodging supporting component on the yoke. The vibration assembly obtains large-scale vibration space in limited space, improves the maximum amplitude of the loudspeaker, avoids the tone quality of the loudspeaker from being influenced by noise generated by collision with the magnetic circuit assembly when the vibration assembly generates large amplitude, and improves the overall performance of the large-amplitude loudspeaker.

Description

Large-amplitude loudspeaker

Technical Field

The utility model relates to an electroacoustic conversion technology field especially relates to a big amplitude speaker.

Background

The speaker and the receiver used in the current mobile terminal are popularizing the large amplitude speaker or the ultra-linear speaker, and along with the improvement of the requirement of the speaker amplitude, the requirement of the vibration part on the vibration space is more and more increased, and how to improve the vibration space of the vibration part as much as possible in the limited space is always an important research and development direction of technicians in the field.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is a large-amplitude speaker having a large vibration space.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a large amplitude speaker, includes magnetic circuit component, voice coil loudspeaker voice coil, basin frame subassembly and supporting component, magnetic circuit component locates in the basin frame subassembly, the voice coil loudspeaker voice coil is located among the magnetic circuit component, supporting component connects basin frame subassembly with the voice coil loudspeaker voice coil, magnetic circuit component includes the yoke, be equipped with on the yoke and be used for dodging supporting component's through-hole.

Furthermore, the magnetic circuit component is provided with a magnetic gap in a rectangular frame shape, the voice coil is positioned in the magnetic gap, and the four corners of the magnetic gap are respectively and correspondingly provided with the through holes.

Further, a cover plate for sealing the through hole is arranged at the bottom of the yoke.

Furthermore, a groove communicated with the through hole is formed in one side, close to the through hole, of the cover plate.

Furthermore, the cover plate is made of metal, plastic, rubber or wood.

Further, the cover plate and the yoke are welded, glued, hot-pressed, screwed or fastened.

Furthermore, the voice coil loudspeaker also comprises a vibrating diaphragm component, wherein the vibrating diaphragm component is arranged on the basin frame component and connected with the voice coil.

Further, the support assembly comprises a flexible circuit board and an auxiliary membrane, the auxiliary membrane is arranged on the flexible circuit board, and the auxiliary membrane is provided with an arc-shaped section.

Further, the flexible circuit board comprises a bonding portion and a bending portion, wherein the bonding portion is connected with the voice coil, and the bending portion is connected with the basin frame assembly.

Further, the flexible circuit board further comprises a bonding pad connected with the bonding part, the voice coil comprises a voice coil lead, and the voice coil lead is electrically connected with the bonding pad.

Furthermore, at least one of the bonding portion, the bonding pad, the top end of the arc-shaped section and a bending area of the bending portion, which is close to the voice coil and has a bending angle larger than 90 degrees, is arranged corresponding to the through hole.

The beneficial effects of the utility model reside in that: when big amplitude speaker during operation, voice coil loudspeaker voice coil and supporting component vibrate from top to bottom, set up the through-hole of dodging supporting component on magnetic circuit assembly, make above-mentioned vibrating component obtain vibration space on a large scale in limited space, improve the maximum amplitude of speaker, avoid vibrating component produce when big amplitude with the magnetic circuit assembly collision produce the tone quality that the noise influences the speaker, promoted big amplitude speaker's wholeness ability.

Drawings

Fig. 1 is an exploded view of a large amplitude speaker according to a first embodiment of the present invention;

Fig. 2 is a cross-sectional view of a large amplitude speaker according to a first embodiment of the present invention;

Fig. 3 is a bottom view of a large amplitude speaker according to a first embodiment of the present invention (after hiding the cover plate and the auxiliary film);

Fig. 4 is a cross-sectional view of a large amplitude speaker according to a second embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a cover plate in a large-amplitude speaker according to a second embodiment of the present invention.

Description of reference numerals:

1. A magnetic circuit assembly; 11. a yoke; 111. a through hole; 12. central magnetic steel; 2. a support assembly; 21. a flexible circuit board; 211. an adhesive portion; 212. a bending section; 213. a pad; 22. a secondary membrane; 221. an arc-shaped section; 3. a basin stand assembly; 31. a border washer; 4. a voice coil; 41. a voice coil lead; 5. a diaphragm assembly; 51. a vibrating plate; 6. a cover plate; 61. and (4) a groove.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

The utility model discloses the most crucial design lies in: the yoke is provided with the through hole to avoid the supporting component, so that the supporting component can obtain a large-range vibration space.

Referring to fig. 1 to 5, a large-amplitude speaker includes a magnetic circuit assembly 1, a support assembly 2, a frame assembly 3, and a voice coil 4, where the magnetic circuit assembly 1 is disposed in the frame assembly 3, the voice coil 4 is disposed in the magnetic circuit assembly 1, the support assembly 2 connects the frame assembly 3 and the voice coil 4, the magnetic circuit assembly 1 includes a yoke 11, and a through hole 111 for avoiding the support assembly 2 is disposed on the yoke 11.

The utility model discloses a structural principle brief follows as follows: when the large-amplitude loudspeaker works, the support component 2 and the voice coil 4 vibrate up and down, and the through hole 111 avoiding the support component 2 is arranged on the yoke 11, so that the vibration component can obtain a large-range vibration space.

From the above description, the beneficial effects of the present invention are: the vibration assembly obtains large-scale vibration space in limited space, improves the maximum amplitude of the loudspeaker, avoids the tone quality of the loudspeaker from being influenced by noise generated by collision with the magnetic circuit assembly 1 when the vibration assembly generates large amplitude, and improves the overall performance of the large-amplitude loudspeaker.

Further, the magnetic circuit assembly 1 has a magnetic gap in a rectangular frame shape, the voice coil 4 is located in the magnetic gap, and the through holes 111 are correspondingly formed at four corners of the magnetic gap, respectively.

As can be seen from the above description, the magnetic circuit assembly 1 includes the central magnetic steel 12 and the plurality of side magnetic steels, the central magnetic steel 12 and the side magnetic steels enclose a magnetic gap, the voice coil 4 vibrates in the magnetic gap to make the speaker sound, and the through holes 111 provided at the four corners of the magnetic gap correspond to the positions of the support assembly 2, so that the support assembly 2 obtains a large-scale vibration space.

Further, a cover plate 6 for closing the through hole 111 is arranged at the bottom of the yoke 11.

As can be seen from the above description, the cover plate 6 for closing the through hole 111 is disposed at the bottom of the yoke 11 to ensure the air tightness of the large amplitude speaker, and to protect the internal parts of the large amplitude speaker from water and dust.

Further, a groove 61 communicated with the through hole 111 is formed in one side, close to the through hole 111, of the cover plate 6.

As can be seen from the above description, the provision of the groove 61 on the cover plate 6, which is communicated with the through hole 111, further increases the vibration space of the support assembly 2, which is beneficial to improving the performance of the large-amplitude speaker.

Furthermore, the cover plate 6 is made of metal, plastic, rubber or wood.

As can be seen from the above description, the material of the cover plate 6 can be selected according to actual requirements, so as to meet the use requirements under different conditions.

Further, the cover plate 6 and the yoke 11 are welded, glued, hot-pressed, screwed or fastened.

As can be seen from the above description, the connection between the cover plate 6 and the yoke 11 may be varied and can be selected according to the actual processing method and the application scenario.

Further, still include vibrating diaphragm subassembly 5, vibrating diaphragm subassembly 5 is located on basin frame subassembly 3 and is connected the voice coil loudspeaker voice coil 4.

As can be seen from the above description, the voice coil 4 is connected to the diaphragm assembly 5, and the voice coil 4 drives the diaphragm assembly 5 to vibrate so as to make the large-amplitude speaker generate sound.

Further, the support assembly 2 includes a flexible circuit board 21 and a secondary film 22, the secondary film 22 is disposed on the flexible circuit board 21, and the secondary film 22 has an arc-shaped section 221.

As can be seen from the above description, the supporting assembly 2 is formed by combining multiple sets of supporting members, so as to obtain a large enough restraining force to limit the swing of the voice coil 4, and realize the large amplitude piston vibration of the speaker, wherein the secondary membrane 22 plays a role of primary support, and the arc-shaped section 221 structure of the secondary membrane 22 has good elasticity, which is beneficial to improving the rolling vibration and the swing of the voice coil 4 and improving the sound quality of the large amplitude speaker.

Further, the flexible circuit board 21 includes an adhesive portion 211 and a bending portion 212 connected to each other, the adhesive portion 211 is adhered to the voice coil 4, and the bending portion 212 is connected to the frame assembly 3.

As can be seen from the above description, the flexible circuit board 21 in the support assembly 2 serves as an auxiliary support and communication, the bonding portion 211 is bonded to the voice coil 4 to restrain the voice coil 4 from swinging, and the bending portion 212 connects the voice coil 4 to the frame assembly 3.

Further, the flexible circuit board 21 further includes a pad 213 connected to the bonding portion 211, the voice coil 4 includes a voice coil lead 41, and the voice coil lead 41 is electrically connected to the pad 213.

As can be seen from the above description, the pad 213 is electrically connected to the voice coil lead 41, and the voice coil 4 is connected to a circuit, so as to implement the electro-acoustic conversion function of the large amplitude speaker.

Further, at least one of the bonding portion 211, the pad 213, the top end of the arc-shaped segment 221, and a bending region of the bending portion 212, which is close to the voice coil 4 and has a bending angle greater than 90 °, is disposed corresponding to the through hole.

Example one

Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: as shown in fig. 1, a large-amplitude speaker includes a magnetic circuit component 1, a supporting component 2, a frame component 3, a voice coil 4 and a diaphragm component 5, the magnetic circuit component 1 is disposed in the frame component 3, the voice coil 4 is disposed in the magnetic circuit component 1, the supporting component 2 is connected with the frame component 3 and the voice coil 4, and the diaphragm component 5 is disposed on the frame component 3.

As shown in fig. 2, the magnetic circuit assembly 1 further includes a yoke 11, the yoke 11 is provided with a through hole 111 for avoiding the support assembly 2 so that the support assembly 2 can obtain a large vibration space, the bottom of the yoke 11 is provided with a cover plate 6 for closing the through hole 111, in this embodiment, the cover plate 6 is a flat plate, the cover plate 6 can be welded, glued, hot-pressed, screwed or fastened to the yoke 11, the cover plate 6 ensures airtightness of the large amplitude speaker, prevents water or dust from entering the inside of the speaker, protects internal components of the large amplitude speaker and prevents the support assembly 2 from being exposed to the yoke 11 through the through-hole 111 when vibrating, preferably, and a positioning structure matched with the cover plate 6 is arranged at the bottom of the yoke 11, so that the cover plate 6 is conveniently arranged on the bottom surface of the yoke 11.

Optionally, the cover plate 6 is made of metal, plastic, rubber or wood, the cover plate 6 may be selected according to a use requirement, and in some embodiments, the cover plate may also be made of a composite material.

In this embodiment, the magnetic circuit assembly 1 further includes a center magnetic steel 12 and a plurality of side magnetic steels, the upper surface of the side magnetic steel is further provided with a side washer 31, the side magnetic steels surround the center magnetic steel 12 to form a magnetic gap, the voice coil 4 is disposed in the magnetic gap, the diaphragm assembly 5 includes a diaphragm 51, the diaphragm 51 is in contact with the voice coil 4, when the voice coil 4 passes through an electric signal, the voice coil 4 vibrates to resonate with the diaphragm 51 and the diaphragm assembly 5, so that the large-amplitude speaker produces sound.

Referring to fig. 2 and 3, the support assembly 2 includes a flexible circuit board 21 and a sub-film 22, and plural sets of supports are used to constrain the voice coil 4 and limit the sway of the voice coil 4, so as to achieve the purpose of achieving a large amplitude. The flexible circuit board 21 comprises a bonding pad 213, an adhesion part 211 and a bending part 212 which are sequentially connected, the bonding pad 213 is electrically connected with a voice coil lead 41 of the voice coil 4, the adhesion part 211 is adhered with the voice coil 4, and the bending part 212 is connected with the frame assembly 3 so as to realize the functions of auxiliary support and connection conduction of the flexible circuit board 21; the secondary membrane 22 is arranged on the lower surface of the flexible circuit board 21, the secondary membrane 22 is provided with an arc-shaped section 221 protruding downwards, the secondary membrane 22 plays a main supporting role, the arc-shaped section 221 with elasticity can improve the swinging and rolling vibration of the voice coil 4, and the tone quality of the large-amplitude loudspeaker is effectively improved.

Specifically, the through hole 111 is at least used for avoiding a part with large displacement when the support member 2 vibrates, including but not limited to a part where the support member 2 is connected to the voice coil 4, such as an adhesive part 211, an inelastic vibration region where the support member 2 extends along the voice coil 4, such as the bonding pad 213, a first bending region where the top of the arc-shaped section 221 and the bending part 212 leave the body of the voice coil 4 by more than 90 °, and the like.

Example two

Referring to fig. 4 to 5, another technical solution is provided for the structure of the cover plate 6 according to the second embodiment of the present invention, which is different from the first embodiment only in the structure of the cover plate 6, as shown in fig. 4, in this embodiment, a groove 61 communicated with the through hole 111 is disposed on one side of the cover plate 6 close to the through hole 111, so as to further increase the vibration space of the vibration assembly to improve the performance of the large-amplitude speaker.

To sum up, the utility model provides a pair of vibration subassembly of big amplitude speaker is vibration space big in limited space, and the biggest amplitude of vibration of speaker is high, and the wholeness can be strong, but the gas tightness is good waterproof dustproof, tone quality is good simultaneously, can select material and mounting means according to the in-service use needs.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a large amplitude speaker, includes magnetic circuit subassembly, voice coil loudspeaker voice coil, basin frame subassembly and supporting component, magnetic circuit subassembly locates in the basin frame subassembly, the voice coil loudspeaker voice coil is located among the magnetic circuit subassembly, the supporting component is connected basin frame subassembly with the voice coil loudspeaker voice coil, magnetic circuit subassembly includes yoke, its characterized in that: and the yoke iron is provided with a through hole for avoiding the supporting component.

2. The large amplitude speaker of claim 1, wherein: the magnetic circuit component is provided with a magnetic gap in a rectangular frame shape, the voice coil is located in the magnetic gap, and the through holes are correspondingly formed in four corners of the magnetic gap respectively.

3. The large amplitude speaker of claim 1, wherein: and a cover plate for sealing the through hole is arranged at the bottom of the yoke.

4. A large amplitude loudspeaker according to claim 3, wherein: and a groove communicated with the through hole is formed in one side, close to the through hole, of the cover plate.

5. A large amplitude loudspeaker according to claim 3, wherein: the cover plate is made of metal, plastic, rubber or wood.

6. A large amplitude loudspeaker according to claim 3, wherein: the cover plate and the yoke are welded, glued, hot-pressed, screwed or fastened.

7. The large amplitude speaker of claim 1, wherein: the support assembly comprises a flexible circuit board and an auxiliary film, the auxiliary film is arranged on the flexible circuit board, and the auxiliary film is provided with an arc-shaped section.

8. The large amplitude speaker of claim 7, wherein: the flexible circuit board comprises a bonding portion and a bending portion, wherein the bonding portion is connected with the voice coil, and the bending portion is connected with the basin frame assembly.

9. The large amplitude speaker of claim 8, wherein: the flexible circuit board further comprises a bonding pad connected with the bonding part, the voice coil comprises a voice coil lead, and the voice coil lead is electrically connected with the bonding pad.

10. The large amplitude speaker of claim 9, wherein: at least one of the bonding portion, the bonding pad, the top end of the arc-shaped section and a bending area of the bending portion, which is close to the voice coil and has a bending angle larger than 90 degrees, is arranged corresponding to the through hole.