CN210629845U

CN210629845U - Large-amplitude loudspeaker

Info

Publication number: CN210629845U
Application number: CN201922006199.XU
Authority: CN
Inventors: 董庆宾
Original assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Current assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-05-26
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a large-amplitude loudspeaker, which comprises a voice coil and a supporting component, wherein the voice coil comprises round corners, the supporting component comprises a group of supporting pieces on each round corner, and each supporting piece comprises a separated supporting cantilever and a conducting cantilever; the distance between the conduction cantilever and the fillet is greater than that between the support assembly and the fillet; the utility model discloses to support the cantilever setting in order to play the supporting role on being close to the position at voice coil loudspeaker voice coil fillet, thereby improve and sway the vibration, will switch on the cantilever setting in order to play the effect of switching on keeping away from the position at voice coil loudspeaker voice coil fillet, owing to keep away from the fillet, so it is less to receive the vibration, be difficult for appearing metal surface crackle, the cantilever blackens, metal and other layer separation of supporting component and conductor and cantilever fracture scheduling problem, thereby have good effect of switching on, can realize better alleviating promptly wholly and roll the effect of shaking and switch on the function.

Description

Large-amplitude loudspeaker

Technical Field

The utility model relates to a sounder field, in particular to big amplitude speaker.

Background

At present, a speaker and a receiver used in a mobile terminal are popularizing a large amplitude speaker or a super linear speaker. The amplitude of the loudspeaker and the receiver is gradually increased to 0.25mm and 0.3mm from the original 0.2mm to more than 0.4mm of the current super-linear or large-amplitude device, and the micro loudspeaker and the receiver with the super-large amplitude of 0.65mm are expected to be produced in mass in 2020.

The voice coil of the moving-coil loudspeaker and the receiver is usually suspended in a magnetic circuit gap formed by a magnet, a washer and a magnetic bowl. Current moving coil speakers typically suffer from unbalanced vibration when the voice coil vibrates due to structural and assembly factors, resulting in noise and reduced life.

Current large amplitude or super linear solutions typically have a support component, typically an FPC, disposed on the vibrating component to conduct and mitigate the sway, thereby achieving the effect of large amplitude. Contain the cantilever on the current supporting component, set up the conductive layer on the cantilever and switch on the use, simultaneously at the vibration subassembly during operation, the cantilever is as main atress position to realize the supporting role.

The conventional support assembly has the following two schemes for the arrangement of the cantilever: the other is the FPC scheme of four corners below the voice coil, and the supporting component is arranged at the four corners of the voice coil, so that the rolling vibration effect is better relieved under the position, and meanwhile, the cantilever is stressed greatly. However, after the cantilever is provided with the conductor layer, after the loudspeaker works for a long time, the conductor layer on the cantilever is easy to have the problems of metal surface cracks, cantilever blackening, separation of metal and other layers of the supporting component, conductor and cantilever fracture and the like, so that noise or no sound occurs in sound production devices such as the loudspeaker, a receiver and the like; the other scheme is that the FPC below the voice coil and the auxiliary membrane below the voice coil are arranged, the cantilever is arranged at the non-four corners of the voice coil, and therefore swinging vibration cannot be improved optimally, the auxiliary membrane is added to improve swinging, however, other supporting components are added in the design, process difficulty and reliability risk are increased, and cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the large-amplitude loudspeaker is provided to achieve a good rolling vibration relieving effect and a good conduction function.

In order to solve the technical problem, the utility model discloses a technical scheme be:

a large amplitude loudspeaker comprising a voice coil and a support assembly, the voice coil comprising rounded corners, the support assembly comprising a set of supports on each of the rounded corners, the supports comprising separate support cantilevers and a conducting cantilever;

the distance between the conduction cantilever and the fillet is larger than that between the support assembly and the fillet.

Further, the aspect ratio of the effective part on the conducting cantilever is larger than that of the effective part on the supporting cantilever, and the effective part is a cantilever part participating in vibration.

Further, the ratio of the aspect ratio of the effective portion on the conduction cantilever to the aspect ratio of the effective portion on the support cantilever is greater than or equal to 2.

Furthermore, the support piece also comprises a voice coil bonding pad, an external bonding pad and a connecting shaft;

the voice coil bonding pad is connected with the connecting shaft, one end of the supporting cantilever is connected with the connecting shaft, the other end of the supporting cantilever is connected with the external bonding pad, one end of the conducting cantilever is connected with the connecting shaft, and the other end of the conducting cantilever is connected with the external bonding pad;

the connection position of the conduction cantilever and the connecting shaft is located on one side, far away from the voice coil bonding pad, of the connection position of the support cantilever and the connecting shaft.

Furthermore, the voice coil loudspeaker voice coil is corresponding with the fillet one-to-one, external pad with the four corners one-to-one of basin frame.

Further, the voice coil also comprises two parallel opposite long shafts and two parallel opposite short shafts;

the supporting pieces on the same short shaft are connected through the connecting shaft.

Furthermore, the support cantilever is S-shaped, and the conducting cantilever is in a half-convex shape.

The beneficial effects of the utility model reside in that: the utility model provides a big amplitude speaker, will support the cantilever setting in order to play the supporting role in the position that is close to the voice coil loudspeaker voice coil fillet, thereby improve and sway the vibration, will switch on the cantilever setting in order to play the effect of switching on in the position of keeping away from the voice coil loudspeaker voice coil fillet, owing to keep away from the fillet, so it is less to receive the vibration, be difficult for appearing metal surface crackle, the cantilever blackens, other layer separation of metal and supporting component and conductor and cantilever fracture scheduling problem, thereby have good effect of switching on, can realize better alleviating promptly and roll the effect of shaking and switch on the function on the whole.

Drawings

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

fig. 2 is a schematic combination diagram of a voice coil, a support assembly and a frame according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a support assembly according to an embodiment of the present invention.

Description of reference numerals:

1. a ball top; 2. vibrating diaphragm; 3. a voice coil; 4. a support assembly; 5. a basin stand; 6. a magnetic circuit assembly; 31. round corners; 32. a long axis; 33. a minor axis; 41. a support boom; 42. conducting the cantilever; 43. a voice coil bonding pad; 44. externally connecting a bonding pad; 45. and (7) connecting the shafts.

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.

Referring to fig. 1 to 3, a large amplitude speaker includes a voice coil and a support assembly, wherein the voice coil includes rounded corners, the support assembly includes a set of support members on each rounded corner, and the support members include separate support cantilevers and a conductive cantilever;

From the above description, the beneficial effects of the present invention are: will support the cantilever setting in order to play the supporting role in the position that is close to the voice coil loudspeaker voice coil fillet, thereby improve and sway the vibration, will switch on the cantilever setting in order to play the effect of switching on in the position of keeping away from the voice coil loudspeaker voice coil fillet, owing to keep away from the fillet, so it is less to receive the vibration, difficult metal surface crackle to appear, the cantilever blackens, metal and other layer separation of supporting component and conductor and cantilever fracture scheduling problem, thereby have good effect of switching on, can realize better alleviating promptly and roll the effect of shaking and switch on the function on the whole.

As can be seen from the above description, the suppression of the sway effect and the avoidance of the break of the conductive cantilever and the conductive layer can be better ensured by the above definition of the aspect ratio of the two.

From the foregoing description, it will be apparent that a preferred embodiment of the support member is provided.

From the foregoing description, it can be seen that a preferred positional relationship of the support assembly and the voice coil, frame is provided.

From the above description, it can be seen that a preferred embodiment of a support member is provided that makes possible a rational use of the internal space of the loudspeaker.

From the above description, it can be known that through further definition of the two cantilevers, a better rolling vibration mitigation effect and a conduction function are achieved.

Referring to fig. 1 to fig. 3, a first embodiment of the present invention is:

the embodiment is suitable for sound production devices which need to use the support component 4, including a loudspeaker and a receiver; and terminal products, including mobile terminals, which need to use the sound production device, and a super-linear large-amplitude loudspeaker and receiver can be realized by using the support component 4.

The utility model provides a large amplitude speaker, as shown in fig. 1, includes ball top 1, vibrating diaphragm 2, voice coil loudspeaker voice coil 3, supporting component 4, basin frame 5 and magnetic circuit assembly 6, wherein, ball top 1 is located vibrating diaphragm 2 top, and vibrating diaphragm 2 is located voice coil loudspeaker voice coil 3 top, and voice coil loudspeaker voice coil 3 is located the inboard of basin frame 5, and supporting component 4 is located the opposite side of vibrating diaphragm 2 and bonds with voice coil loudspeaker voice coil 3, and magnetic circuit assembly 6 is located voice coil loudspeaker voice coil 3 below.

Specifically, as shown in fig. 2, the voice coil 3 includes two parallel opposite major axes 32, two parallel opposite minor axes 33, and four rounded corners 31 connecting the minor axes 33 and the major axes 32. The support assembly 4 includes a set of support members on each round corner 31, each support member includes a voice coil pad 43, an external pad 44, a connecting shaft 45, a support cantilever 41 and a conduction cantilever 42, the voice coil pad 43 is connected with the connecting shaft 45, one end of the support cantilever 41 is connected with the connecting shaft 45, the other end of the support cantilever 41 is connected with the external pad 44, one end of the conduction cantilever 42 is connected with the connecting shaft 45, the other end of the conduction cantilever 42 is connected with the external pad 44, as shown in fig. 2, the support members on the same short shaft 33 are connected through the connecting shaft 45, the voice coil pads 43 on each set of support members correspond to the round corners 31 one by one, the external pads 44 on each set of support members correspond to the four corners of the basin frame 5 one by one, the connecting shaft 45 on each set of support members corresponds to.

Wherein, the connection point of the conducting cantilever 42 and the connecting shaft 45 is located at the connection point of the supporting cantilever 41 and the connecting shaft 45 and is far away from one side of the voice coil pad 43, the distance of the conducting cantilever 42 and the fillet 31 is greater than the distance of the supporting component 4 and the fillet 31, namely the conducting cantilever 42 is close to the fillet 31, and the supporting component 4 is far away from the fillet 31 compared with the conducting fillet 31, so as to reduce the influence caused by vibration.

As shown in fig. 3, the support cantilever 41 has an S-shape, the conducting cantilever 42 has a semi-convex shape, the semi-convex shape is a type shape, and the specific shape of the conducting cantilever 42 does not include the upper end of the semi-convex shape and extends toward the external connection pad 44 at the lower end of the semi-convex shape until being connected to the external connection pad 44.

As can be seen from fig. 1 to 3, only one of the upper and lower surfaces of the supporting component 4 is provided with the external connection pad 44, i.e. as shown in fig. 2; meanwhile, in other equivalent embodiments, the conducting cantilever 42 serves as a main conducting function, and a conducting wire may be disposed on the supporting cantilever 41 to serve as an auxiliary conducting function.

Referring to fig. 1 to fig. 3, a second embodiment of the present invention is:

In the present embodiment, the ratio between the aspect ratio of the effective part on the conductive cantilever 42 and the aspect ratio of the effective part on the supporting cantilever 41 is greater than or equal to 2, so as to ensure the suppression of the sway effect and avoid the breakage of the conductive cantilever 42 and the conductive layer.

To sum up, the utility model provides a pair of large amplitude speaker will support the cantilever setting in order to play the supporting role on being close to the position at voice coil loudspeaker voice coil fillet, thereby improve and sway the vibration, will switch on the cantilever setting in order to play the effect of switching on keeping away from the position at voice coil loudspeaker voice coil fillet, owing to keep away from the fillet, so receive the vibration less, difficult metal surface crackle that appears, the cantilever blackens, other layer separation and conductor and cantilever fracture scheduling problem of metal and supporting component, thereby have good effect of switching on, and to supporting the cantilever, switch on the cantilever length-width ratio and do further injecing, the assurance that can be better suppresses the effect of swaing and avoids switching on cantilever and conductor layer fracture, promptly the utility model discloses can realize better alleviating to roll the effect of shaking and switch on the function on the whole.

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. A large amplitude speaker, includes voice coil and supporting component, its characterized in that: the voice coil includes rounded corners, the support assembly includes a set of supports on each of the rounded corners, the supports including separate support cantilevers and a conducting cantilever;

2. A large amplitude loudspeaker according to claim 1, wherein: the length-width ratio of the effective part on the conducting cantilever is larger than that of the effective part on the supporting cantilever, and the effective part is a cantilever part participating in vibration.

3. A large amplitude loudspeaker according to claim 2, wherein: the ratio of the aspect ratio of the effective part on the conducting cantilever to the aspect ratio of the effective part on the supporting cantilever is greater than or equal to 2.

4. A large amplitude loudspeaker according to any one of claims 1 to 3, wherein: the support piece also comprises a voice coil bonding pad, an external bonding pad and a connecting shaft;

5. A large amplitude loudspeaker according to claim 4, wherein: still include the basin frame, voice coil loudspeaker voice coil pad with the fillet one-to-one, external pad with the four corners one-to-one of basin frame.

6. A large amplitude loudspeaker according to claim 4, wherein: the voice coil also comprises two parallel opposite long shafts and two parallel opposite short shafts;

7. A large amplitude loudspeaker according to claim 4, wherein: the support cantilever is S-shaped, and the conducting cantilever is in a half-convex shape.