CN219659889U - Neck belt earphone connected by sectional FPC molding - Google Patents

Abstract

The utility model relates to the technical field of neck band headphones, and particularly discloses a neck band headphone connected by sectional FPC molding. The connecting piece is arranged on the connecting piece, two ends of the A-end FPC penetrate into the end parts of the two side shells respectively, silica gel is covered on the outer surface of the neck strap body, an upper cover port corresponding to the shell opening is reserved on the silica gel, an L-end FPC and an R-end FPC are respectively arranged in the two side shells, two ends of the A-end FPC are respectively connected with the L-end FPC and the R-end FPC, an upper cover sealing upper cover port is arranged on the silica gel, and electric signals are conducted by the electrifying and functional control parts in the two side shells through the A-end FPC, the L-end FPC and the R-end FPC. According to the scheme, the FPC is adopted to replace multi-core wire connection on the market, the occurrence of the short circuit condition of the circuit is reduced, the structure of sectional connection of the FPC is adopted, the molding silica gel mold is optimized, and the yield of products is improved.

Description

Neck belt earphone connected by sectional FPC molding

Technical Field

The utility model relates to the technical field of neck band headphones, and particularly discloses a neck band headphone connected by sectional FPC molding.

Background

The neck strap earphone is a common Bluetooth earphone, and compared with the wireless Bluetooth earphone, the neck strap earphone is additionally provided with a neck strap for hanging the neck, so that the earphone cannot fall down to be lost in the use process, and therefore the neck strap earphone is deeply used by sports lovers.

The present neck area earphone structure mainly comprises battery case, control box, neck area line and earphone, like a wireless earphone that the application number is 202023160041.7 discloses, the both sides of earphone body 1 are provided with battery case 2 and drive-by-wire box 3 respectively, battery case 2 with connect through connecting wire 4 between the middle part of drive-by-wire box 3. The middle part cover of connecting wire 4 is equipped with neck cover 19, neck cover 19 comprises wear-resisting cover 20 and sponge ventilation cover 21, wear-resisting cover 20 is located the outside of sponge ventilation cover 21, wear-resisting cover 20 with all be provided with a plurality of bleeder vents on the sponge ventilation cover 21.

The prior neck band main body of the neck band earphone is of a core wire structure, and is sleeved with wear-resistant materials such as silica gel and the like, and the neck band earphone can be bent and damaged to the core wire inside the neck band under long-term use, so that the neck band earphone is in a circuit short circuit condition, and the service life of the neck band earphone is not facilitated, therefore, a new neck band structure needs to be developed to replace the prior core wire neck band structure.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a neck band earphone connected by sectional FPC molding.

The utility model discloses a neck band earphone connected by sectional FPC molding, which adopts the following technical scheme:

a neck strap earphone for segmented FPC molding connection, comprising: the utility model provides a portable electronic device, including casing, connecting piece, casing, neck area main part, both sides the casing has the opening, both sides the casing is used for holding the spare part of circular telegram and function control, both sides connect through the connecting piece between the tip of casing and constitute the neck area main part, be equipped with A end FPC on the connecting piece, both ends of A end FPC penetrate both sides respectively in the tip of casing, neck area main part outward appearance covers has silica gel, leave on the silica gel and correspond casing open-ended upper cover port, both sides be equipped with L end FPC and R end FPC in the casing respectively, the both ends of A end FPC are connected with L end FPC, R end FPC respectively, be equipped with the upper cover on the silica gel and seal upper cover port, be used for circular telegram and function control spare part in the casing of both sides passes through A end FPC, L end FPC and R end FPC switch on the signal.

Preferably, the connector includes a steel bar connecting the housings on both sides, one side of the steel bar is provided with a rear cover, and the a-terminal FPC is clamped between the steel bar and the rear cover.

Still preferably, the housing end is provided with a connection block, the steel bar is fixed on the connection block, the a-end FPC is disposed on one side of the steel bar facing away from the connection block, and the rear cover is connected with the connection block and clamps the a-end FPC between the steel bar and the rear cover.

Still preferably, the connecting block is provided with a first accommodating groove, the rear cover is accommodated in the first accommodating groove and seals the opening of the first accommodating groove, the end part of the shell is provided with an FPC channel communicated with the first accommodating groove, and two ends of the FPC at the end A penetrate through the FPC channel and enter the shell.

Preferably, the upper cover is provided with a plurality of hot-melt columns, a hot-melt column slot for correspondingly inserting the hot-melt columns is arranged in the shell, and the L-end FPC and the R-end FPC are arranged among the hot-melt column slots in a penetrating manner.

Preferably, deformation sections formed by bending are arranged on the L-end FPC and the R-end FPC.

Preferably, two ends of the A-end FPC are connected with the L-end FPC and the R-end FPC through BTB connecting bases.

Preferably, the rear cover and the shell are fixed through a hot melt column.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

1. according to the scheme, FPC is adopted to replace multi-core wire connection in the market, so that the occurrence of circuit short circuit is reduced, the structural space is greatly reduced, the product structure is optimized, the welding process of the multi-core wires is reduced, and the production efficiency is improved;

2. this scheme adopts FPC segmentation connected structure, on the one hand, the intermediate A end FPC possesses the function as BTB joint, has realized circular telegram and the function intercommunication between neck area both ends battery case and the control box, on the other hand, A end FPC can carry out the silica gel shaping in earlier stage equipment to the casing and make semi-manufactured goods, segmented L/R end FPC can be connected again after silica gel injection moulding is accomplished, so can make silica gel injection moulding process more smooth, thereby the shaping silica gel mould has been optimized, manufacturing cost has been reduced, and also be convenient for follow-up FPC arranges the arrangement in the casing, the risk of broken wire short circuit has been reduced, the yields of product has been promoted.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a neck band earphone connected by a segmented FPC molding in the present embodiment;

fig. 2 is a schematic diagram illustrating the split structure of a neck band earphone connected by a segmented FPC molding in the present embodiment;

fig. 3 is a split schematic diagram of two side shells of a neck band earphone connected by a segmented FPC molding in the embodiment;

FIG. 4 is an enlarged view of FIG. 3A;

fig. 5 is a schematic structural diagram of an a-terminal FPC, an L-terminal FPC, and an R-terminal FPC connected by molding the segmented FPC according to the embodiment;

fig. 6 is a schematic structural diagram of the sectional FPC of the present embodiment before molding the silicone rubber of the neck band earphone;

fig. 7 is a schematic structural diagram of a molded silica gel of a neck band earphone connected by a segmented FPC in the present embodiment.

Reference numerals illustrate:

1. a housing; 11. a connecting block; 12. a threaded hole; 13. a first accommodating groove; 14. a second accommodating groove; 15. an FPC channel; 16. a hot melt column slot; 2. a steel bar; 21. a fixing hole; 3. a screw; 4. a rear cover; 51. an A-terminal FPC; 52. an L-end FPC; 53. r-terminal FPC; 54. a BTB connection base; 55. a deformation section; 6. silica gel; 7. a receiver; 8. and (5) an upper cover.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The embodiment discloses a neck band earphone of segmentation FPC shaping connection, referring to fig. 1-7, it includes battery case, control box, neck band body and earphone 7, and wherein, battery case and control box are both sides casing 1 specifically, and casing 1 is the plastics material and has the opening, can hold the spare part of circular telegram and function control in the both sides casing 1, connects through the connecting piece between the tip of both sides casing 1 and constitutes the neck band main part. In addition, be equipped with A end FPC 51 on the connecting piece, the both ends of A end FPC 51 penetrate respectively in the tip of both sides casing 1, the outward appearance of neck area main part is covered with silica gel 6, leave the upper cover port that corresponds casing 1 open-ended on the silica gel 6, be equipped with L end FPC 52 respectively on both sides casing 1 and hold FPC 53 with R, the both ends of A end FPC 51 are connected through BTB connecting seat 54 with L end FPC 52 respectively, R end FPC 53, be equipped with the upper cover 8 that is used for the shutoff upper cover port on the silica gel 6, be used for circular telegram in the both sides casing 1 and function control spare part switches on the signal through A end FPC 51, L end FPC 52 and R end FPC 53.

Specifically, referring to fig. 2 and 3, the connecting piece specifically includes steel bar 2 and screw 3, steel bar 2 is the material that can elastically set, in addition, integrated into one piece has connecting block 11 on the tip of both sides casing 1, threaded hole 12 has been seted up on the connecting block 11, fixed orifices 21 has all been seted up at the both ends of steel bar 2, screw 3 passes fixed orifices 21 on the steel bar 2 and is connected with threaded hole 12 on the connecting block 11, thereby assemble both sides casing 2 fixedly, and A end FPC 51 then sets up in the one side that steel bar 2 deviates from connecting block 11, still be fixed with back lid 4 on the connecting block 11, make A end FPC 51 by the centre gripping between steel bar 2 and back lid 4. Wherein, back lid 4 is the plastics material, is equipped with the hot melt post on the connecting block 11, is equipped with heat supply melt post male connecting hole on the back lid 4, and back lid 4 and casing 1 pass through the fixed seal of hot melt post to firmly centre gripping A end FPC is between billet 2 and back lid 4.

By arranging the steel bars 2, on one hand, the function of connecting the two side shells 1 to form the neck belt main body is achieved, and the functional requirement is met; on the other hand, the user can change the radian by pulling the steel bar 2, so that the two ends of the neck strap can have a certain expansion range, thereby meeting the requirement of local expansion activity of the neck strap; in addition, the cooperation of the steel bar 2 and the rear cover 4 can also enable the A-end FPC 51 to be stably installed between the two side shells, so that the subsequent silica gel 6 forming process can be smoothly carried out.

Further, referring to fig. 4, a first accommodating groove 13 in which the rear cover 4 is embedded is formed in the connecting block 11, an FPC channel 15 which is communicated with the first accommodating groove 13 is formed in the end portion of the housing 1, two ends of the FPC 51 at the end a penetrate through the FPC channel 15 and enter the housing 1, a second accommodating groove 14 is further formed in the bottom of the first accommodating groove 13 of the connecting block 11, the end portion of the steel bar 2 is accommodated in the second accommodating groove 14, and the silica gel 6 completely covers the steel bar 2, the connecting block 11 and the rear cover 4.

Through set up first storage tank 13 and second storage tank 14 on connecting block 11, not only can make back lid 4 and billet 2 can match and inlay to the inslot, assembly efficiency and fixed effect have been improved, moreover, can make billet 2 flush with the tank bottom surface of first storage tank 13, reduce the pressure equipment damage to A end FPC 51, make back lid 4 flush with casing 1 surface, do benefit to subsequent silica gel 6 injection moulding, in addition, back lid 4 seals the opening of first storage tank 13, make A end FPC 51 to the position department that FPC passageway 15 penetrated can be fully wrapped by back lid 4 and connecting block 11, thereby avoid follow-up injection molding in-process silica gel material injection casing 1 inside, and then promoted the performance quality of neck area earphone, effectively improved the production yields.

In addition, a plurality of hot melt posts are arranged at the bottom of the upper cover 8, hot melt post slots 16 into which the hot melt posts are correspondingly inserted are arranged in the shell 1, and the L-end FPC 52 and the R-end FPC 53 are arranged among the hot melt post slots 16 in a penetrating manner. The upper cover 8 not only plays a role of a decorative cover, but also the upper cover 8 and the shell 1 are fixed by hot-melt column ironing, so that the connection is more reliable, and the falling-off condition is not easy to occur. In addition, the mode of connecting through the heart yearn of prior art needs the manual work to wind a little bit by bit between locating the hot melt pole slot, and packaging efficiency is low, and this scheme adopts FPC to replace the heart yearn, because FPC has certain shaping performance, can be through can design into required shape in its punching press production process, be favorable to L end FPC 52 and R end FPC 53 wear to locate between a plurality of hot melt pole slots 16 fast. As a preferred scheme, referring to fig. 5,L, the end FPC 52 and the R end FPC 53 are provided with a deformation section 55 formed by bending, when the neck strap needs to be bent and adjusted to expand the radian, the deformation section 55 can allow the L end FPC 52 and the R end FPC 53 to stretch or bend and deform along with each other, so that the influence of bending of the neck strap on the electrical signal communication of the FPC is reduced.

The embodiment also discloses a sectional FPC molding connection method, which comprises the following steps:

(1) The two side shells 1 are assembled and mutually fixed through steel bars 2 and screws 3;

(2) Placing the A-end FPC 51 at the position of the steel bar 1, penetrating the A-end FPC 51 into the FPC channels 15 at the end parts of the two side shells 1, and then fixing and sealing the rear cover 4 at the connecting block 11 of the shell 1 through a hot-melt column, so that the A-end FPC 51 is clamped between the steel bar 2 and the rear cover 4, as shown in FIG. 6;

(3) Placing the assembly in a silica gel mold, injecting silica gel for molding, so that the surfaces of the two side shells 1 and the steel bar 2 are coated with silica gel 6, and an upper cover port is reserved on the injection molded silica gel;

(4) Taking out the product, cleaning burrs, performing oil spraying/pad printing processing, detecting/packaging, and preparing a semi-finished product for shipment, as shown in fig. 7;

(5) The L-end FPC 52 and the R-end FPC 53 are respectively arranged in the two side shells 1 and are connected with the BTB connecting bases 53 at the two ends 51 of the A-end FPC, so that the parts used for electrifying and controlling functions in the two side shells 1 conduct electric signals through the A-end FPC 51, the L-end FPC 52 and the R-end FPC 53;

(6) After other parts such as the earphone 7 are installed, finally, the upper cover 8 is fixed on the silica gel 6 through a hot melting column, and the upper cover 8 is assembled and fixed on the neck strap in a glue beating and pressure maintaining mode by adopting up-and-down assembly, so that the product of fig. 1 is finally obtained.

According to the scheme, the FPC is adopted to replace multi-core wire connection in the market, so that the structural space is greatly reduced, the product is upgraded, the welding process is reduced, and the production efficiency is improved. In addition, the scheme adopts a structure of sectional connection of the FPC, on one hand, the middle A-end FPC 51 has the function of being used as a BTB joint, and the electrifying and functional communication between the battery boxes at the two ends of the neck strap and the control box are realized; on the other hand, because FPC has certain resilience, it is difficult to keep it totally to keep standing in being the casing of certain radian with it, especially in placing the subassembly in injection mold and the in-process of moulding plastics, FPC pops out the inside position department of preset casing easily, cause the interference to silica gel moulding plastics, and the A end FPC 51 of this scheme can assemble to carry out the silica gel shaping in casing 1 at earlier stage and make semi-manufactured goods, sectional L/R end FPC can connect again after silica gel injection moulding is accomplished, so can make silica gel injection molding process more smooth, the silica gel mould need not the part that the anti FPC skew of special design disturbed, thereby the shaping silica gel mould has been optimized, manufacturing cost has been reduced, and also the subsequent FPC of being convenient for arranges in the casing and arranges, the risk of broken wire short circuit has been reduced, the yield of product has been promoted.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present principles and embodiments may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims (8)

1. A neck strap earphone for segmented FPC molded connection, comprising: the utility model provides a portable electronic device, including casing, connecting piece, casing, neck area main part, both sides the casing has the opening, both sides the casing is used for holding the spare part of circular telegram and function control, both sides connect through the connecting piece between the tip of casing and constitute the neck area main part, be equipped with A end FPC on the connecting piece, both ends of A end FPC penetrate both sides respectively in the tip of casing, neck area main part outward appearance covers has silica gel, leave on the silica gel and correspond casing open-ended upper cover port, both sides be equipped with L end FPC and R end FPC in the casing respectively, the both ends of A end FPC are connected with L end FPC, R end FPC respectively, be equipped with the upper cover on the silica gel and seal upper cover port, be used for circular telegram and function control spare part in the casing of both sides passes through A end FPC, L end FPC and R end FPC switch on the signal.

2. The neck strap earphone of claim 1, wherein the connector comprises a steel bar connecting the two sides of the housing, a rear cover is provided on one side of the steel bar, and the a-terminal FPC is clamped between the steel bar and the rear cover.

3. The neck strap earphone of claim 2, wherein the housing end is provided with a connection block, the steel bar is fixed on the connection block, the a-end FPC is arranged on a side of the steel bar facing away from the connection block, and the rear cover is connected with the connection block and clamps the a-end FPC between the steel bar and the rear cover.

4. A neck band earphone connected with a segmented FPC in a molding manner according to claim 3, wherein a first accommodating groove is formed in the connecting block, the rear cover is accommodated in the first accommodating groove and seals an opening of the first accommodating groove, an FPC channel communicated with the first accommodating groove is formed at the end portion of the shell, and two ends of the a-end FPC penetrate through the FPC channel and enter the shell.

5. The neck band earphone connected with the sectional FPC in a molding mode, according to claim 1, wherein the upper cover is provided with a plurality of hot-melt columns, hot-melt column slots for correspondingly inserting the hot-melt columns are formed in the shell, and the L-end FPC and the R-end FPC are arranged among the hot-melt column slots in a penetrating mode.

6. The neck band earphone connected with the segmented FPC in a molding mode according to claim 1, wherein deformation segments formed by bending are arranged on the L-end FPC and the R-end FPC.

7. The neck band earphone connected by sectional FPC according to claim 1, wherein the two ends of the A-end FPC are connected with the L-end FPC and the R-end FPC through BTB connecting bases.

8. The neck strap earphone of claim 2 wherein the rear cover is secured to the housing by a heat stake.