CN208863063U

CN208863063U - A kind of centring disk and Microspeaker

Info

Publication number: CN208863063U
Application number: CN201821839006.8U
Authority: CN
Inventors: 李倩茹; 王猛; 毛成东
Original assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Current assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Priority date: 2018-11-08
Filing date: 2018-11-08
Publication date: 2019-05-14
Anticipated expiration: 2028-11-08

Abstract

The utility model discloses a kind of centring disk and Microspeakers, including interior fixed part, outer fixing portion and at least four slider assemblies, interior fixed part is connected with outer fixing portion by the slider assembly, the slider assembly includes two and is oppositely arranged U-shaped arm, each U-shaped arm is separately connected the interior fixed part and outer fixing portion, and the opening of two U-shaped arms in the same slider assembly is towards on the contrary.U-shaped arm will appear elastic elongation when vibration component vibrates, to avoid the vibration for excessively restraining voice coil, increases the amplitude of Microspeaker, improves the power of Microspeaker；Symmetrical dual U-shaped arm designs so that voice coil Impact direction equilibrium in vibration, reduces rocking vibration of the voice coil in vibration processes and improve the acoustical behavior of Microspeaker to improve the audition surplus and reliability surplus of product simultaneously.

Description

A kind of centring disk and Microspeaker

Technical field

The utility model relates to electroacoustic transducer more particularly to a kind of centring disks and Microspeaker.

Background technique

Microspeaker used in the mobile terminals such as current phone, computer is usually by vibrating diaphragm, frame, voice coil, magnetic circuit etc. Attachment composition.Mobile terminal proposes the requirement of large amplitude, superlinearity to Microspeaker while pursuing lightening.Mesh Preceding part Microspeaker, which has used FPC as centring disk, makes its lower vibration in vertical direction to guarantee that voice coil is fixed.

Existing centring disk includes interior fixed part, outer fixing portion and cantilever, and interior fixed position is in outer fixing portion, cantilever One end connect the interior fixed part, the other end of cantilever connects outer fixing portion, and the cantilever of existing centring disk is straight sided Design, and cantilever-rotating is to being asymmetrically designed, therefore, four cantilever force directions of centring disk are uneven when voice coil vibrations Weighing apparatus, so as to cause voice coil rocking vibration, affects the acoustical behavior of Microspeaker；Simultaneously because the design of straight cantilever, voice coil Straight cantilever stroke is shorter when vibration, and amplitude when voice coil vibrations is caused to be limited.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of novel centring disk and Microspeakers, have The Microspeaker acoustical behavior of the centring disk is good, amplitude is big.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows: a kind of centring disk, including it is interior solid Determine portion, outer fixing portion and at least four slider assemblies, interior fixed part is connected with outer fixing portion by the slider assembly, described outstanding Arm component includes two and is oppositely arranged U-shaped arm, and each U-shaped arm is separately connected the interior fixed part and outer fixing portion, together The opening of two U-shaped arms in one slider assembly is towards on the contrary.

Further, the both ends of the U-shaped arm opening are respectively equipped with curved bend folding part, and the U-shaped arm passes through an institute It states curved bend folding part and connects the interior fixed part, the U-shaped arm connects the outer fixation by another described curved bend folding part Portion.

Further, the overbending direction of the curved bend folding part with and its connection the U-shaped arm opening towards opposite.

Further, the interior fixed part and outer fixing portion distinguish rectangular frame-shaped, four sides of the interior fixed part It is connected separately at least one described slider assembly.

Further, the quantity of the slider assembly of the opposite two sides connection of the interior fixed part is identical.

Further, the connected slider assembly in a side in two sides opposite with the interior fixed part and with it is another The connected slider assembly in one side is centrosymmetric about the center of the interior fixed part.

Further, interior pad is respectively equipped on one group of diagonally opposing corner of the interior fixed part.

Further, the U-shaped arm includes arc section and two are directly stretched section, and two sections of directly stretching pass through the arc section It is connected.

Further, the radian of the arc section is greater than π.

Microspeaker, including above-mentioned centring disk.

The utility model has the beneficial effects that: U-shaped arm will appear elastic elongation when vibration component vibrates, to avoid The vibration for excessively restraining voice coil, increases the amplitude of Microspeaker, improves the power of Microspeaker；It is symmetrical simultaneously double U-shaped arm designs so that voice coil Impact direction equilibrium in vibration, reduces rocking vibration of the voice coil in vibration processes, to improve The audition surplus and reliability surplus of product, that is, improve the acoustical behavior of Microspeaker.

Detailed description of the invention

Fig. 1 is the top view of the centring disk in the Microspeaker of the utility model embodiment one；

Fig. 2 is the top view of the centring disk in another Microspeaker of the utility model embodiment one.

Label declaration:

1, interior fixed part；

2, outer fixing portion；

3, U-shaped arm；

31, section is directly stretched；

32, arc section；

4, curved bend folding part；

5, interior pad.

Specific embodiment

For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match Attached drawing is closed to be explained.

The design of the utility model most critical is: slider assembly includes two U-shaped arms being oppositely arranged, and two U-shapeds The direction of the opening of arm is opposite.

Referring to Fig.1 and 2, a kind of centring disk, including interior fixed part, outer fixing portion and at least four slider assemblies, Interior fixed part is connected with outer fixing portion by the slider assembly, and the slider assembly includes two and is oppositely arranged U-shaped arm, each The U-shaped arm is separately connected the interior fixed part and outer fixing portion, two U-shaped arms in the same slider assembly Opening is towards on the contrary.

As can be seen from the above description, the utility model has the beneficial effects that: U-shaped arm will appear bullet when vibration component vibrates Property elongation, thus avoid excessively restrain voice coil vibration, increase the amplitude of Microspeaker, improve the function of Microspeaker Rate；Symmetrical dual U-shaped arm designs so that voice coil Impact direction equilibrium in vibration, reduces voice coil shaking in vibration processes simultaneously Pendular oscillation improves the acoustical behavior of Microspeaker to improve the audition surplus and reliability surplus of product.

Seen from the above description, setting curved bend folding part can avoid stress in U-shaped arm and inside/outside fixed part junction collection It is poly-, conducive to the service life for extending centring disk.

Seen from the above description, two groups of opposite slider assembly central symmetries make voice coil stress more balanced.

Seen from the above description, interior pad, which is arranged on one group of diagonally opposing corner of interior fixed part, is conducive to voice coil stress equalization.

Further, the radian of the arc section is greater than π.

Seen from the above description, the radian of arc section can be to avoid stress build up, conducive to making for centring disk is extended greater than π Use the service life.

Microspeaker, including above-mentioned centring disk.

Seen from the above description, Microspeaker acoustical behavior is good.

Embodiment one

Referring to Fig.1 and 2, the embodiments of the present invention one are as follows: Microspeaker, including centring disk, it is described fixed The structure of heart branch piece as shown in Figure 1, include interior fixed part, outer fixing portion and at least four slider assemblies, interior fixed part with it is outer solid Determine portion to be connected by the slider assembly, the slider assembly includes two and is oppositely arranged U-shaped arm, and each U-shaped arm is divided equally The interior fixed part and outer fixing portion are not connected, and the opening of two U-shaped arms in the same slider assembly is towards on the contrary.

Optionally, the both ends of the U-shaped arm opening are respectively equipped with curved bend folding part, and the U-shaped arm passes through described in one Curved bend folding part connects the interior fixed part, and the U-shaped arm connects the outer fixing portion by another described curved bend folding part. Preferably, the overbending direction of the curved bend folding part with and its connection the U-shaped arm opening towards opposite.

Specifically, the interior fixed part and outer fixing portion distinguish rectangular frame-shaped, four sides point of the interior fixed part It is not connected at least one described slider assembly.

In the present embodiment, the quantity of the slider assembly of the opposite two sides connection of the interior fixed part is identical.It is excellent Choosing, the slider assembly and be connected with another side that a side in two sides opposite with the interior fixed part is connected Slider assembly be centrosymmetric about the center of the interior fixed part.In other words, two sides opposite with the interior fixed part It is opposite with the interior fixed part that the connected slider assembly in a side, which rotates 180 ° around the central horizontal of interior fixed part, in side Two sides in the connected slider assembly in another side setting position.

Interior pad is respectively equipped on one group of diagonally opposing corner of the interior fixed part.

Detailed, the U-shaped arm includes that arc section and two directly stretch section, and two described, and directly stretching section passes through the arc section phase Even, described directly to stretch one end connection curved bend folding part of the section far from the arc section.

As shown in Fig. 2, optional, the radian of the arc section is greater than π.

In conclusion centring disk provided by the utility model and Microspeaker, U-shaped arm meeting when vibration component vibrates There is elastic elongation, to avoid the vibration for excessively restraining voice coil, increases the amplitude of Microspeaker, improve miniature loudspeaking The power of device；Symmetrical dual U-shaped arm designs so that voice coil Impact direction equilibrium in vibration, reduces voice coil in vibration processes simultaneously In rocking vibration improve the acoustical behavior of Microspeaker to improve the audition surplus and reliability surplus of product.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck Domain is also included in the patent protection scope of the utility model.

Claims

1. a kind of centring disk, including interior fixed part, outer fixing portion and at least four slider assemblies, interior fixed part and outer fixing portion It is connected by the slider assembly, it is characterised in that: the slider assembly includes two U-shaped arms being oppositely arranged, each U Shape arm is separately connected the interior fixed part and outer fixing portion, the opening of two U-shaped arms in the same slider assembly Towards on the contrary.

2. centring disk according to claim 1, it is characterised in that: the both ends of the U-shaped arm opening are respectively equipped with arc Shape bending part, the U-shaped arm connect the interior fixed part by a curved bend folding part, and the U-shaped arm passes through another The curved bend folding part connects the outer fixing portion.

3. centring disk according to claim 2, it is characterised in that: the overbending direction of the curved bend folding part and and its company The opening of the U-shaped arm connect is towards on the contrary.

4. centring disk according to claim 1, it is characterised in that: the interior fixed part and outer fixing portion are in rectangle respectively Four sides of frame-shaped, the interior fixed part are connected separately at least one described slider assembly.

5. centring disk according to claim 4, it is characterised in that: the opposite two sides connection of the interior fixed part The quantity of the slider assembly is identical.

6. centring disk according to claim 5, it is characterised in that: in two sides opposite with the interior fixed part During the connected slider assembly in one side and the slider assembly being connected with another side about the center of the interior fixed part be in The heart is symmetrical.

7. centring disk according to claim 4, it is characterised in that: set respectively on one group of diagonally opposing corner of the interior fixed part There is interior pad.

8. centring disk according to claim 1, it is characterised in that: the U-shaped arm includes that arc section and two directly stretch section, Two sections of directly stretching are connected by the arc section.

9. centring disk according to claim 8, it is characterised in that: the radian of the arc section is greater than π.

10. Microspeaker, it is characterised in that: including centring disk described in any one of claim 1-9.