CN216600062U

CN216600062U - Loudspeaker

Info

Publication number: CN216600062U
Application number: CN202220748062.0U
Authority: CN
Inventors: 嵇丽霞; 朱青
Original assignee: Gettop Acoustic Co Ltd
Current assignee: Gettop Acoustic Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-05-24
Anticipated expiration: 2032-04-02

Abstract

The utility model provides a loudspeaker, its characterized in that: including vibration system, vibration system includes vibrating diaphragm and vibration subassembly, the vibration subassembly includes FPC and the voice coil loudspeaker voice coil that is located FPC, the voice coil loudspeaker voice coil is the plane voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil nestification is on FPC. The voice coil is arranged to be a plane voice coil which is embedded on the FPC, so that the whole vibration system is flat, does not occupy Z-direction space, enables the product to be light and thin, and is simple in structure and cost-saving; vibration assembly and vibrating diaphragm through FPC and voice coil loudspeaker voice coil integration constitute vibration system, and the voice coil loudspeaker voice coil adopts the bifilar coiling side by side, utilizes the FPC circuit to realize parallelly connected and external signal switches on, reduces impedance, and replaces traditional movable coil structure vibration system, utilizes voice coil loudspeaker voice coil shape and material characteristic to replace the ball top, obtains high frequency ductility, solves the high frequency and cuts apart the vibration problem, realizes ultra-thin speaker design.

Description

Loudspeaker

Technical Field

The utility model relates to a speaker, specifically speaking relates to a speaker.

Background

The relatively common speaker on the market is the moving coil structure, comprises materials such as protecgulum, vibrating diaphragm, voice coil loudspeaker voice coil, dome, centering piece, magnetic circuit, pole piece, magnetic shield, and the coil vibrates from top to bottom in the magnetic gap that the magnetic circuit constitutes, drives diaphragm and centering piece vibration, for guaranteeing voice coil loudspeaker voice coil vibration space, does not produce the noise, and product thickness can not be done too thin. The product is developed in a light and thin mode, and the performance requirements of customers can be met under a small volume, so that the development trend is at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned conventional art's weak point, provide a speaker.

The purpose of the utility model is achieved through the following technical measures: a loudspeaker, characterized by: including vibration system, vibration system includes vibrating diaphragm and vibration subassembly, vibration subassembly includes FPC and the voice coil loudspeaker voice coil that is located FPC, the voice coil loudspeaker voice coil is the plane voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil nestification is on FPC.

Preferably, the voice coil is wound by bifilar wires.

Preferably, the FPC is in a planar plate shape, and includes an inner ring and an outer periphery, and a cantilever connecting the inner ring and the outer periphery.

As a preferred scheme, be provided with two outer pads on the periphery, be provided with two interior pads on the interior circle, interior pad includes first interior pad and second interior pad, first interior pad is fixed with the leading-out terminal of voice coil loudspeaker voice coil, pad is fixed with the leading-in terminal of voice coil loudspeaker voice coil in the second.

Preferably, the voice coil wire inlet end is fixed with the second inner pad through a lead.

As a preferred scheme, the vibration device further comprises a basin frame, the vibration system is installed on the basin frame, and the outer pad is communicated with the basin frame.

As a preferred scheme, the vibrating diaphragm is installed on one side, far away from the basin frame, of the vibrating assembly, the vibrating diaphragm is arranged in a hollow mode, one circle of the inner portion of the vibrating diaphragm is bonded to the inner ring of the FPC, and one circle of the outer portion of the vibrating diaphragm is bonded to the periphery of the FPC.

As a preferred scheme, one side of the basin frame, which is far away from the vibration system, is fixedly connected with a magnetic cover, and magnetic steel is arranged between the magnetic cover and the FPC.

As a preferred scheme, the magnetic steel comprises rectangular magnetic steel and annular magnetic steel, the rectangular magnetic steel is located at the center of the annular magnetic steel, and the rectangular magnetic steel and the annular magnetic steel are both fixed on the magnetic cover.

As a preferred scheme, the whole voice coil is located the rectangle magnet steel outside, the voice coil periphery is located FPC's inner circle.

Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that: the voice coil is arranged as the planar voice coil and is embedded on the FPC, so that the whole vibration system is flat, does not occupy Z-direction space, and is light and thin in product, simple in structure and cost-saving; vibration assembly and vibrating diaphragm through FPC and voice coil loudspeaker voice coil integration constitute vibration system, and the voice coil loudspeaker voice coil adopts the bifilar coiling side by side, utilizes the FPC circuit to realize parallelly connected and external signal switches on, reduces impedance, and replaces traditional movable coil structure vibration system, utilizes voice coil loudspeaker voice coil shape and material characteristic to replace the ball top, obtains high frequency ductility, solves the high frequency and cuts apart the vibration problem, realizes ultra-thin speaker design.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic diagram of the overall explosion structure of the speaker of the present invention.

Fig. 2 is a schematic diagram of the overall front structure of the speaker of the present invention.

Fig. 3 is a schematic view of the overall back structure of the speaker of the present invention.

Fig. 4 is a schematic sectional view of a loudspeaker according to the present invention.

Fig. 5 is a schematic front structural diagram of a vibration assembly 15 of a speaker according to the present invention.

Fig. 6 is a schematic sectional view of a-a of fig. 5 of a speaker according to the present invention.

Fig. 7 is a schematic front structural diagram of a vibration assembly 15 of a speaker according to the present invention.

Fig. 8 is a schematic structural diagram of the back surface of the vibration component 15 of the loudspeaker according to the present invention.

Fig. 9 is an enlarged schematic structural diagram of a speaker at C in fig. 8 according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b): as shown in fig. 1-9, a speaker includes a vibration system, the vibration system includes a diaphragm 1 and a vibration component 15, the vibration component 15 includes an FPC2 and a voice coil 3 located in an FPC2, the voice coil 3 is a planar voice coil, the voice coil 3 is embedded on an FPC2, the whole vibration system is flat, does not occupy a Z-direction space, and makes the product light and thin. FPC2 is the setting of plane platelike, including inner circle 4 and periphery 5, connect through cantilever 6 between inner circle 4 and the periphery 5, in this embodiment, FPC2 is whole to be the rectangle setting, periphery 5 is the rectangle frame, inner circle 4 is the rectangle, inner circle 4 is located the inside of periphery 5, cantilever 6 is provided with four, four cantilevers 6 set up respectively on four edges, four cantilevers 6 all are on a parallel with the limit setting that corresponds with periphery 5, the both ends width of cantilever 6 increases gradually, the steadiness of connecting is improved, and set up the vibration performance that cantilever 6 can improve inner circle 4. In the present embodiment, the first and second electrodes are,

the FPC2 is processed firstly, then the voice coil 3 is placed on the inner ring 4, the whole FPC2 is made of pi plastic, a lead inside the voice coil 3 is a copper wire, the outer portion of the copper wire is wrapped by an outer skin, the outer skin is made of plastic, and the FPC2 is placed on the FPC2 and heated to be fused and fixed with the FPC2 to form the vibration assembly 15.

As shown in fig. 5-6, in this embodiment, the voice coil 3 is wound in a bifilar manner, two outer pads 7 are disposed on the outer periphery 5, and two inner pads are disposed on the inner ring 4, in this embodiment, the inner pads are disposed on the back of the FPC2, the inner pads include a first inner pad 8 and a second inner pad 9, the first inner pad 8 is fixed to the outgoing line end of the voice coil 3, the second inner pad 9 is fixed to the incoming line end of the voice coil 3, in this embodiment, the outgoing line end of the voice coil 3 is located on the outer side, the incoming line end is fixed to the second inner pad 9 through a lead 10, and the lead 10 is perpendicular to the winding direction of the voice coil, so that the parallel connection of the voice coils is realized, and the impedance is reduced.

Still include basin frame 11, vibration system installs on basin frame 11, and outer pad 7 communicates with basin frame 11, and then realizes that the product switches on with external signal.

The diaphragm 1 is mounted on the side of the vibration assembly 15 away from the frame 11, and in this embodiment, the diaphragm 1 is adhered to the upper surface of the FPC 2. The vibrating diaphragm 1 is arranged in a rectangular ring shape, the vibrating diaphragm 1 is hollow, namely the middle part is not provided with a dome, one circle of the inner part of the vibrating diaphragm 1 is bonded on the inner ring 4 of the FPC2, and one circle of the outer part of the vibrating diaphragm 1 is bonded on the periphery 5 of the FPC 2. Vibrating diaphragm 1 rigidity is not enough among the traditional structure, needs additionally bond the dome in the middle of vibrating diaphragm 1 and promotes vibration system rigidity, produces the high frequency from this and cuts apart the vibration, and the high frequency is extended poorly, and embedded plane voice coil loudspeaker voice coil 3 of this structure is copper line or other materials that switch on, and the material itself has certain toughness and intensity, through the bifilar coiling side by side of voice coil line, can replace traditional dome, solves the high frequency and cuts apart the vibration, widens the high frequency field.

As shown in FIG. 4, a magnetic cover 12 is fixedly connected to one side of the basin stand 11 away from the vibration system, and magnetic steel is arranged between the magnetic cover 12 and the FPC 2. In this embodiment, the magnetic steel includes a rectangular magnetic steel 13 and an annular magnetic steel 14, the rectangular magnetic steel 13 is located at a central portion of the annular magnetic steel 14, and both the rectangular magnetic steel 13 and the annular magnetic steel 14 are fixed on the magnetic cover 12. The width of the voice coil 3 is selected according to the required performance, namely the number of winding turns is selected according to the performance, but the voice coil 3 is wholly positioned outside the rectangular magnetic steel 13, and the periphery 5 of the voice coil 3 is positioned in the inner ring 4 of the FPC 2. The magnetizing direction of the rectangular magnetic steel 13 is opposite to that of the annular magnetic steel 14. In this embodiment, as shown in fig. 4, one end of the rectangular magnetic steel 13 close to the vibration component 15 is an S pole, one end of the rectangular magnetic steel 13 close to the magnetic shield 12 is an N pole, one end of the annular magnetic steel 14 close to the vibration component 15 is an N pole, and one end of the annular magnetic steel 14 close to the magnetic shield 12 is an S pole.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A loudspeaker, characterized by: including vibration system, vibration system includes vibrating diaphragm and vibration subassembly, vibration subassembly includes FPC and the voice coil loudspeaker voice coil that is located FPC, the voice coil loudspeaker voice coil is the plane voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil nestification is on FPC.

2. A loudspeaker according to claim 1, wherein: the voice coil is wound by bifilar wires.

3. A loudspeaker according to claim 1, wherein: the FPC is in a planar plate shape and comprises an inner ring, an outer periphery and a cantilever connected with the inner ring and the outer periphery.

4. A loudspeaker according to claim 3, wherein: the voice coil is characterized in that two outer bonding pads are arranged on the periphery, two inner bonding pads are arranged on the inner ring, each inner bonding pad comprises a first inner bonding pad and a second inner bonding pad, the first inner bonding pad is fixed with the wire outlet end of the voice coil, and the second inner bonding pad is fixed with the wire inlet end of the voice coil.

5. A loudspeaker according to claim 4, wherein: and the wire inlet end of the voice coil is fixed with the second inner welding disc through a lead.

6. A loudspeaker according to any one of claims 4 to 5, wherein: still include the basin frame, vibration system installs on the basin frame, outer pad and basin frame UNICOM.

7. A loudspeaker according to claim 6, wherein: the vibrating diaphragm is installed in one side of vibrating assembly, and the basin frame is kept away from, the vibrating diaphragm cavity sets up, the inside round of vibrating diaphragm bonds on FPC's inner circle, and outside round bonds on FPC's periphery.

8. A loudspeaker according to claim 6, wherein: one side of the basin frame, which is far away from the vibration system, is fixedly connected with a magnetic cover, and magnetic steel is arranged between the magnetic cover and the FPC.

9. A loudspeaker according to claim 8, wherein: the magnetic steel comprises rectangular magnetic steel and annular magnetic steel, the rectangular magnetic steel is located at the center of the annular magnetic steel, and the rectangular magnetic steel and the annular magnetic steel are both fixed on the magnetic cover.

10. A loudspeaker according to claim 9, wherein: the voice coil is wholly located the rectangle magnet steel outside, the voice coil periphery is located FPC's inner circle.