CN201904911U

CN201904911U - Fitting structure of spring plates and plastic base of sounder

Info

Publication number: CN201904911U
Application number: CN2010206433831U
Authority: CN
Inventors: 朱立东
Original assignee: XIAMEN GREAT SOUND TECHNOLOGY Co Ltd
Current assignee: XIAMEN GREAT SOUND TECHNOLOGY Co Ltd
Priority date: 2010-12-06
Filing date: 2010-12-06
Publication date: 2011-07-20
Anticipated expiration: 2020-12-06

Abstract

The utility model relates to a fitting structure of spring plates and a plastic base of a sounder. The fitting structure comprises a plastic base and two spring plates mounted and positioned thereon. Each spring plate is provided with a fixed end, a free end and a connecting part connecting the fixed end with the free end, a positioning block, an insert and a fixing block are arranged on each spring plate, and positioning recesses corresponding to the spring plate positioning blocks, insertion grooves corresponding to the spring inserts and fixing recesses correspondingly fitted with the spring plate fixing blocks are arranged on the plastic base. By the aid of corresponding fitting between the positioning blocks and the positioning blocks, the inserts and the insertion grooves, and the fixing blocks and the fixing recesses, the fixed ends of the spring plates can be positioned on the plastic base stably without easy loosening or deviating, spring contacts are precise, and electrical connecting performance of the spring plates is more stable.

Description

The fit structure of acoustical generator shell fragment and plastic base

Technical field

The utility model is about the fit structure of a kind of acoustical generator shell fragment and plastic base.

Background technology

Portable type electronic product is towards miniaturization at present, and the direction that fuselage is thin develops, and the product volume inside is limited, makes minitype acoustic generator be widely used.In the known technology, assembling for ease of minitype acoustic generator, generally be to adopt the spring-piece type arrangements of electric connection, this shell fragment need be installed on the plastic base in advance, commonly use the traditional combination of shell fragment and plastic base and have two kinds: a kind of be with shell fragment one plastic compression to plastic base, high temperature when its deficiency is plastic compression can make the shell fragment of metal material be heated to produce oxidation and destroy the electrodeposited coating of shell fragment, thereby influence the electric conductivity of shell fragment, and the plastic compression process causes the shell fragment stress deformation easily and the relative position of shell fragment and plastic base is offset, therefore have electrical connection loose contact, properties of product problem of unstable; Another kind is the combination that shell fragment and plastic base adopt PUR, glue control was improper when its weak point was melten gel overflows easily, be covered in the shell fragment top layer and influence the conductivity of shell fragment, cause installation not in place, and the easy ageing failure of viscose glue, therefore the stability that makes shell fragment combine with plastic base can not get effective assurance.

The utility model content

At the above-mentioned deficiency of commonly using, the utility model provides the fit structure of a kind of acoustical generator shell fragment and plastic base, can make firm being embedded on the plastic base of shell fragment, and positioning stablity, installs simple.

For reaching above-mentioned purpose, technical solution of the present utility model is:

The fit structure of a kind of acoustical generator shell fragment and plastic base, include a plastic base and the shell fragment of two installing and locating on this plastic base, described plastic base is the saturating empty framework in a middle part, this shell fragment is that metal material is made, have a stiff end and a free end, and connect this stiff end and free-ended connecting portion, wherein: this connecting portion includes the straight portion and an oblique portion of a level, this oblique portion is bending near forming one on the free end, and a block is protruded to a side in this free-ended end; This straight portion is being provided with a positioning block near oblique portion place, near the stiff end place one abaculus is being set, and this abaculus is parallel and relative laying with locating piece, and the end of this stiff end also is provided with a fixed block; Then be provided with on this plastic base to should the free-ended stopper slot of shell fragment, the location notch of corresponding matching shell fragment locating piece, the caulking groove of corresponding ccontaining shell fragment abaculus, and the holddown groove that is provided with corresponding matching shell fragment fixed block, and this stopper slot top forms a stop section to position that should the free end end stone.

The bottom of this abaculus is extended a faying face and to a side and is tiltedly supported face.

Be equipped with overhead kick embedding angle on this locating piece, abaculus and the fixed block.

The utility model adopts said structure, by this locating piece and location notch, abaculus and caulking groove, and the corresponding matching of fixed block and holddown groove, but make shell fragment stiff end strong fix on plastic base, and assembling is simple to be difficult for loosening and skew, make shrapnel contact accurate, electrical connection properties is more stable.

Description of drawings

Fig. 1 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model;

Fig. 2 is a textural association schematic diagram of the present utility model.

Embodiment

As shown in Figure 1, 2, fit structure for acoustical generator shell fragment of the present utility model and plastic base, include a plastic base 1 and the two installing and locating shell fragment 2 on this plastic base 1, described plastic base 1 is the saturating empty framework in a middle part, and described two shell fragments 2 are installed on respectively on the relative sidewall 11 of this framework two.

This shell fragment 2 is made for metal material, have a stiff end 21 and a free end 22, and the connecting portion 23 that connects this stiff end 21 and free end 22, this connecting portion 23 includes the straight portion 231 and an oblique portion 232 of a level, one end of this straight portion 231 is defined as this stiff end 21, the other end is connected with this oblique portion 232, the other end of this oblique portion 232 then is defined as this free end 22, this oblique portion 232 is bending 233 near forming one on the free end 22, and the end of this free end 22 protrudes a block 24 to a side, and mat bending 233 can be electrically connected this shell fragment with the external circuit board elasticity; This straight portion 231 is at the locating piece 25 that a tool overhead kick embedding angle vertically is set downwards near oblique portion 232 places, at the abaculus 26 that a tool overhead kick embedding angle vertically is set downwards near stiff end 21 places, this abaculus 26 is parallel and relative laying with locating piece 25, and a faying face 261 and is extended tiltedly to face 262 to a side in these abaculus 26 bottoms, this faying face 261 is for the voice coil line (not shown) of welding acoustical generator, in addition, the also same fixed block 27 that a tool overhead kick embedding angle vertically is set downwards in the end of this stiff end 21.

Cooperate above-mentioned shell fragment 2, then be provided with caulking groove 14 on this plastic base 1 to the up/down perforation of stopper slot 12 that should shell fragment 2 free ends 22, the location notch 13 of corresponding matching shell fragment 2 locating pieces 25, corresponding ccontaining shell fragment 2 abaculus 26, and the holddown groove 15 that is provided with corresponding matching shell fragment 2 fixed blocks 27, and these stopper slot 12 tops form a stop section 121 to position that should free end end stone 24.

When above-mentioned shell fragment 2 is installed, snap in respectively in the holddown groove 15 and caulking groove 14 on this plastic base 1 with the fixed block 27 of shell fragment 2 stiff ends 21 ends and near the abaculus 26 at stiff end 21 places, and with in the location notch 13 corresponding with it on the 25 embedding plastic bases 1 of the locating piece in these shell fragment 2 straight portions 231, by this locating piece 25, fixed block 27, oblique this location notch 13 of the together firm corresponding stopper of face 262 that supports of the overhead kick embedding angle of abaculus 26 and abaculus 26, on the inwall of holddown groove 15 and caulking groove 14, with these stiff end 21 strong fixs that make shell fragment 2 on this plastic base 1, again to oblique portion 232 application of forces of shell fragment 2, shell fragment 2 free ends 22 are pressed in the stopper slot 12 of plastic base 1, and the stop section 121 that makes these stopper slot 12 tops stops the block 24 of this free end 22, with restriction shell fragment 2 free ends 22 can only be this stopper slot 12 in about the elasticity start.

The utility model acoustical generator shell fragment adopts said structure with cooperating of plastic base, assembling is simple, and by this locating piece and location notch, abaculus and caulking groove, and the corresponding matching of fixed block and holddown groove, but make shell fragment stiff end strong fix on plastic base, be difficult for loosening and skew, make shrapnel contact accurate, electrical connection properties is more stable.

Claims

1. the fit structure of acoustical generator shell fragment and plastic base, include a plastic base and the shell fragment of two installing and locating on this plastic base, described plastic base is the saturating empty framework in a middle part, this shell fragment is that metal material is made, have a stiff end and a free end, and connect this stiff end and free-ended connecting portion, it is characterized in that:

This connecting portion includes the straight portion and an oblique portion of a level, and this oblique portion is bending near forming one on the free end, and a block is protruded to a side in this free-ended end; This straight portion is being provided with a positioning block near oblique portion place, near the stiff end place one abaculus is being set, and this abaculus is parallel and relative laying with locating piece, and the end of this stiff end also is provided with a fixed block;

Then be provided with on this plastic base to should the free-ended stopper slot of shell fragment, the location notch of corresponding matching shell fragment locating piece, the caulking groove of corresponding ccontaining shell fragment abaculus, and the holddown groove that is provided with corresponding matching shell fragment fixed block, and this stopper slot top forms a stop section to position that should the free end end stone.

2. the fit structure of acoustical generator shell fragment as claimed in claim 1 and plastic base is characterized in that: the bottom of this abaculus is extended a faying face and to a side and is tiltedly supported face.

3. the fit structure of acoustical generator shell fragment as claimed in claim 1 and plastic base is characterized in that: be equipped with overhead kick embedding angle on this locating piece, abaculus and the fixed block.