CN208924484U - A kind of acoustical generator - Google Patents

Abstract

A kind of acoustical generator, including vibrational system, the frame of magnetic circuit system and the accommodating space with receiving vibrational system and magnetic circuit system, acoustical generator further includes being embedded at frame and the pin for voice coil to be electrically connected with external circuitry, pin includes the pedestal for being embedded at frame, elasticity arm, contact portion and gib head, frame corresponds to gib head and is formed with pin slot, acoustical generator further includes the limiting section extended in activity space from frame, gib head is connected in the pin slot in frame by limiting section, gib head is convexly equipped with retention bead close to the side of limiting section, limiting section corresponds to retention bead recess and is formed with accommodation groove, retention bead is snapped in accommodation groove.Limiting section is arranged by the pin slot in frame corresponding with pin in above-mentioned acoustical generator, retention bead is set close to the side of limiting section in pin gib head and is snapped in it on limiting section in corresponding accommodation groove, it realizes the limit to pin, improve pin dimensional uniformity and promotes acoustical behavior.

Description

A kind of acoustical generator

Technical field

The utility model relates to a kind of electroacoustic techniques field, a kind of particularly acoustical generator.

Background technique

With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, the function of mobile phone is extremely various, one of them is just The music function of high-quality, therefore, the acoustical generator for playing sound be widely applied Intelligent mobile equipment till now it In.

The acoustical generator of the relevant technologies includes frame, the vibrating diaphragm for being fixed on frame and magnetic circuit system, the sound for driving diaphragm oscillations Circle, by FPC that voice coil is conducted to outside frame and with the fixed pin device being electrically connected of FPC.

However, existing pin device is arranged in the front end of pin from hook structure, gib head is inserted into the pin slot of frame simultaneously It is fixed on the bottom side of pin slot, pin is highly susceptible to external force and from pin slot in by external force or assembling process There is pin front end beyond this kind of bad order of product shape in outer bullet, and that it is easy to appear sizes after pin bent angle is inconsistent The phenomenon that, influence the acoustical behavioies such as acoustical generator.

Therefore, the new acoustical generator of one kind must be provided to solve above-mentioned technical problem by having in fact.

Utility model content

For the deficiencies in the prior art, the utility model provides a kind of acoustical generator, by corresponding with pin Frame on pin slot limiting section is set, being arranged in pin gib head close to the side of limiting section retention bead and is snapped in it On limiting section in corresponding accommodation groove, the limit to pin is realized, reducing pin front end is more than the outer of acoustical generator shape Bad dimensional uniformity after improving pin bent angle is seen, the acoustical behavior of acoustical generator is promoted.

In order to achieve the above objectives, the utility model the following technical schemes are provided:

A kind of acoustical generator, the acoustical generator include vibrational system, magnetic circuit system and have a receiving vibrational system and magnetic circuit system Accommodating space frame, vibrational system include vibrating diaphragm and driving diaphragm oscillations voice coil, acoustical generator further includes being embedded at frame And for the pin that is electrically connected voice coil with external circuitry, pin includes the pedestal for being embedded at frame, extends from pedestal one end Elasticity arm, the gib head extended to form from the contact portion of elasticity arm extension and from contact portion far from pedestal one end, frame are corresponding Gib head is formed with pin slot, and pin slot forms the activity space of receiving gib head；Voice coil is electrically connected with pedestal, contact portion and external world's electricity Road electrical connection；Acoustical generator further includes the limiting section extended in activity space from frame, and gib head is connected in frame by limiting section Pin slot, gib head is convexly equipped with retention bead close to the side of limiting section, and limiting section corresponds to retention bead recess and is formed with accommodating Slot, retention bead are snapped in accommodation groove.

Further, frame includes the upper surface of fixed vibrating diaphragm, lower surface opposite to the upper surface, surrounds accommodating space Inner sidewall and the lateral wall opposite with inner sidewall；Pin slot is recessed to be formed and extend to lower surface from lateral wall towards inner sidewall Notch is formed, limiting section extends to pin slot through lower surface.

Further, limiting section includes that corresponding retention bead is recessed the accommodation groove to be formed, the cross sectional shape and limit of accommodation groove The cross sectional shape of position protrusion is identical.

Further, gib head includes the clamping of the extension board connected from contact portion and the side edge bending extension from extension board Plate, the retention bead are formed in the card adapter plate and abut with the limiting section.

Further, extension board is mutually perpendicular to card adapter plate.

Further, the cross sectional shape of retention bead includes rectangular, trapezoidal or hemispherical.

Further, pin slot is set to the two sides of frame.

Further, voice coil has voice coil leads, and voice coil leads extend and be soldered to the side that pedestal deviates from elasticity arm.

Further, acoustical generator further includes the front cover assembled with frame, and vibrating diaphragm is folded between front cover and frame, in front cover Centre is equipped with acoustic aperture.

Compared with the prior art, the utility model has the following technical effect that

The utility model provides a kind of acoustical generator comprising vibrational system, magnetic circuit system and have receiving vibrational system With the frame of the accommodating space of magnetic circuit system, vibrational system includes the voice coil of vibrating diaphragm and driving diaphragm oscillations, and acoustical generator further includes It is embedded at frame and for the pin that is electrically connected voice coil with external circuitry, pin includes the pedestal for being embedded at frame, from pedestal The elasticity arm of one end extension, the hook extended to form from the contact portion of elasticity arm extension and from contact portion far from pedestal one end Head, frame correspond to gib head and are formed with pin slot, and pin slot forms the activity space of receiving gib head；Voice coil is electrically connected with pedestal, is connect Contact portion is electrically connected with external circuitry；Acoustical generator further includes the limiting section extended in activity space from frame, and gib head is by limiting section The pin slot being connected in frame, gib head are convexly equipped with retention bead close to the side of limiting section, and it is recessed that limiting section corresponds to retention bead It falls into and is formed with accommodation groove, retention bead is snapped in accommodation groove.Above-mentioned acoustical generator passes through inserting in frame corresponding with pin Limiting section is arranged in foot slot, and retention bead is arranged close to the side of limiting section in pin gib head and is snapped in it on limiting section therewith In corresponding accommodation groove, the limit to pin is realized, reduce the bad order that pin front end is more than acoustical generator shape, improve and insert Dimensional uniformity after foot bent angle promotes the acoustical behavior of acoustical generator.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings, in which:

Fig. 1 is a kind of structural schematic diagram of acoustical generator provided by the embodiment of the utility model；

Fig. 2 is a kind of structure fractionation schematic diagram of acoustical generator shown in Fig. 1；

Fig. 3 is the structural schematic diagram of pin in a kind of generator shown in FIG. 1；

Fig. 4 is a kind of cross-sectional view of the generator shown in FIG. 1 along B-B direction；

Fig. 5 is a kind of bottom view of generator Fig. 1 shown in FIG. 1；

Fig. 6 is a kind of portion P enlarged drawing of generator shown in fig. 5.

Specific embodiment

Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on the implementation in the utility model Example, all other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

As shown in figures 1 to 6, the utility model provides a kind of acoustical generator, which includes vibrational system 2, magnetic circuit system 3 and with receiving vibrational system and magnetic circuit system accommodating space frame 1, vibrational system 2 include vibrating diaphragm 20 and driving vibrating diaphragm The voice coil 21 of vibration, acoustical generator further include being embedded at frame 1 and the pin 4 for voice coil 21 to be electrically connected with external circuitry, are inserted Foot 4 include be embedded at frame 1 pedestal 41, from 41 one end of pedestal extend elasticity arm 42, from elasticity arm 42 extend contact portion 43 and the gib head 44 extended to form from contact portion far from 41 one end of pedestal, the corresponding gib head 44 of frame 1 is formed with pin slot 11, Pin slot 11 forms the activity space of receiving gib head 44；Voice coil 21 is electrically connected with pedestal 41, and contact portion 43 is electrically connected with external circuitry It connects；Acoustical generator further includes the limiting section 5 extended in activity space from frame 1, and gib head 44 is connected in frame by limiting section 5 Pin slot 11, gib head 44 are equipped with retention bead 443, the position of the corresponding retention bead 443 of limiting section 5 close to the side of limiting section 5 It is formed with accommodation groove 51, retention bead 443 is in accommodation groove 51.

Wherein, frame 1 is in rectangle comprising the upper surface 1A of fixed vibrating diaphragm 20, the lower surface 1B opposite with upper surface 1A, Surround the inner sidewall 1C and the lateral wall 1D opposite with inner sidewall 1C of accommodating space；Pin slot 11 is from lateral wall 1D towards inside Wall 1C is recessed to form and extend to lower surface 1B formation notch 110, and limiting section 5 extends to pin slot 110 through lower surface 1B.Basin The leak holes for sequentially passing through the inner sidewall 1C and lateral wall 1D are formed on frame 1, corresponding be sticked has lid on the lateral wall 1D If the damping membrane 10 of the leak holes.

Preferably, pin slot 11 is set to the two sides of frame 1, the quantity at least two of pin slot 11.Corresponding pin 4 Quantity also at least two.

Preferably, vibrational system 2 includes vibrating diaphragm 20 and the voice coil 21 for driving the vibration of vibrating diaphragm 20, and vibrating diaphragm 20 includes sound film 201 With with the stiffening plate 200 that is attached at sound film 201, voice coil 21 is electrically connected by pin 4 with external circuit.Voice coil 21 draws with voice coil Line 210, voice coil leads 210 extend and are soldered to side of the pedestal 41 away from elasticity arm 42 of pin 4.

Preferably, pole piece 30, magnet steel 31 and magnetic bowl 32 that magnetic circuit system 3 includes and sets gradually from top to bottom.Magnetic bowl 32 Fixed with frame 1, magnet steel 31 is fixed on 32 center of magnetic bowl, and pole piece 31 is corresponding with 31 shape of magnet steel.

Preferably, acoustical generator further includes the front cover 6 assembled with frame 1, and vibrating diaphragm 20 is folded between front cover 6 and frame 1, preceding 6 center of lid is equipped with acoustic aperture.

Preferably, as shown in Figure 3-4, pin 4 includes the pedestal 41 for being embedded at frame 1, from 41 one end of pedestal, bending extends Elasticity arm 42, the contact portion 43 that extends from elasticity arm 42 and the hook extended to form from contact portion 43 far from 41 one end of pedestal First 44.

Wherein, pedestal 41 includes spot welding position, which is located at the bottom of pedestal 41, is used for and voice coil leads 210 Welding.

Elasticity arm 42 extends from one end of pedestal 41, surrounds U-shaped structure with pedestal 41, which has flexible deformation Ability plays connection function and buffer function.

Contact portion 43 extends from one end of elasticity arm 42, and shape is arc-shaped, for being electrically connected with external circuit.

Gib head 44 is set to the front end of pin 4, is in hook, is connected on pin slot 11 so that pin 4 is fixed on frame 1 On.Gib head 44 includes the card adapter plate of the extension board 441 connected from contact portion 43 and the side edge bending extension from extension board 441 442.Preferably, the extending direction of extension board 441 and the extending direction of card adapter plate 442 are mutually perpendicular to.Preferably, gib head 44 is right It answers the position of limiting section 5 to be provided with retention bead 443, passes through accommodation groove made of being recessed in retention bead 443 and limiting section 5 51 cooperate, so that pin will not stretch out after receiving external force from one end of frame, avoid the occurrence of pin and are subjected to displacement simultaneously Bad order phenomenon beyond acoustical generator shape.

Preferably, the cross sectional shape of retention bead 443 includes rectangular, trapezoidal or hemispherical.

Preferably, frame 1 is an integral molding structure, and material is metal, and the metal should meet the intensity of acoustical generator It is required that and aeroelastic requirements.

Preferably, as seen in figs. 5-6, limiting section 5 is set to the front end of the pin slot 11 in frame, and gib head 44 is by limiting Portion 5 is connected in the pin slot 11 in frame, and the position recess of the corresponding retention bead 443 of limiting section 5 is formed with accommodation groove 51, accommodates The cross sectional shape of slot 51 is identical as the cross sectional shape of retention bead 443, to realize limit of the limiting section 5 to gib head 44, gib head 44 are fixed on the side of limiting section 5, and the pin slot 11 that gib head 44 is snapped in frame 1 avoids hook to limit to pin 4 First 44 are stretched out by after external force from one end of frame, so that the bad order that pin front end is more than acoustical generator shape is reduced, And improve the dimensional uniformity after pin bent angle, promote the acoustical behavioies such as acoustical generator.

Preferably, the cross sectional shape of accommodation groove 51 includes rectangular, trapezoidal or hemispherical.By retention bead 443 and hold The cooperation for setting slot 51, which is realized, limits the multiple directions of gib head, is not only avoided that direction of the front end away from elasticity arm of pin Mobile, the front end that also can be avoided pin is mobile towards the direction towards or backwards to pedestal.

To sum up, the utility model provides a kind of acoustical generator, is arranged by the pin slot in frame corresponding with pin Limiting section is arranged retention bead close to the side of limiting section in pin gib head and to be snapped in it corresponding on limiting section In accommodation groove, the limit to pin is realized, the bad order that pin front end is more than acoustical generator shape is reduced, after improving pin bent angle Dimensional uniformity, promote the acoustical behavior of acoustical generator.

Obviously, those skilled in the art the utility model embodiment can be carried out various modification and variations without departing from The spirit and scope of the utility model.In this way, if these modifications and variations of the present invention belong to the utility model right It is required that and its within the scope of equivalent technologies, then the utility model is also intended to include these modifications and variations.

Claims (9)

1. a kind of acoustical generator, which is characterized in that the acoustical generator includes vibrational system, magnetic circuit system and has and accommodate the magnetic circuit The frame of the accommodating space of system and the vibrational system, the vibrational system include vibrating diaphragm and the driving diaphragm oscillations Voice coil, the acoustical generator further include being embedded at the frame and the pin for the voice coil to be electrically connected with external circuitry, institute Pin is stated to include the pedestal for being embedded at the frame, the elasticity arm extended from described pedestal one end, extend from the elasticity arm Contact portion and the gib head extended to form from the contact portion far from described pedestal one end, the frame correspond to the gib head shape At there is pin slot, the pin slot forms the activity space for accommodating the gib head；The voice coil is electrically connected with the pedestal, described Contact portion is electrically connected with the external circuitry；The acoustical generator further includes the limit extended in the activity space from the frame Position portion, the gib head are connected in the pin slot in the frame by the limiting section, the gib head close to the limiting section one Side is convexly equipped with retention bead, and the limiting section corresponds to the retention bead recess and is formed with accommodation groove, the retention bead buckle In the accommodation groove.

2. acoustical generator according to claim 1, which is characterized in that the frame include the fixed vibrating diaphragm upper surface, The lower surface opposite with the upper surface, the inner sidewall for surrounding the accommodating space and the outside opposite with the inner sidewall Wall；The pin slot is recessed to form and extend to the lower surface formation notch, institute from the lateral wall towards the inner sidewall It states limiting section and extends to the pin slot through the lower surface.

3. acoustical generator according to claim 1, which is characterized in that the cross sectional shape of the accommodation groove and the retention bead Cross sectional shape it is identical.

4. acoustical generator according to claim 2, which is characterized in that the gib head includes the extension connected from the contact portion Plate and the card adapter plate extended from the side edge bending of the extension board, the card adapter plate extend to the limiting section on described The side on surface, the retention bead are formed in the card adapter plate and abut with the limiting section.

5. according to acoustical generator as claimed in claim 4, which is characterized in that the extension board is mutually perpendicular to the card adapter plate.

6. acoustical generator according to claim 1, which is characterized in that the cross sectional shape of the retention bead includes rectangular, terraced Shape or hemispherical.

7. acoustical generator according to claim 1, which is characterized in that the pin slot is set to the two sides of the frame.

8. acoustical generator according to claim 1-6, which is characterized in that the voice coil has voice coil leads, described Voice coil leads extend and are soldered to the side that the pedestal deviates from the elasticity arm.

9. acoustical generator according to claim 7, which is characterized in that the acoustical generator further includes before assembling with the frame Lid, the vibrating diaphragm are folded between the front cover and the frame, and the front cover center is equipped with acoustic aperture.