CN210986413U

CN210986413U - Diaphragm and speaker

Info

Publication number: CN210986413U
Application number: CN201921364971.9U
Authority: CN
Inventors: 罗冬梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-07-10
Anticipated expiration: 2029-08-21
Also published as: WO2021031928A1

Abstract

The utility model discloses a vibrating diaphragm and speaker. The diaphragm includes a conductive member for electrically connecting the voice coil and an external circuit. The vibrating membrane of the utility model is arranged in the loudspeaker, so that the loudspeaker has less noise, distortion can be reduced, and the sound effect is better; the circuit connection is stable, no fracture occurs, and the service life is long; the product has simple and convenient process, low cost and light and thin whole body. Comprises a conductive member for electrically connecting the voice coil and an external circuit.

Description

Diaphragm and speaker

Technical Field

The utility model relates to a speaker technical field, concretely relates to vibrating diaphragm and speaker.

Background

The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and has various types, and the main principle is that audio electric energy enables a cone or a diaphragm to vibrate and generate resonance with surrounding air to make sound through electromagnetic, piezoelectric or electrostatic effects.

The traditional loudspeaker, no matter of an external magnetic type or an internal magnetic type, needs to electrically connect a voice coil (coil) with an external circuit through a lead wire, and the lead wire needs to penetrate out of the external circuit through a gap between a cone and an elastic wave to be connected with the external circuit; in addition, if the vibration is divided, the sound effect is distorted, and the whole sound effect is influenced; if the connection of the lead wire, the voice coil and the external circuit has the end of wire or the short wire, unnecessary noise can occur, and the tone quality of the loudspeaker is influenced; the nylon wire is small, so that the process is complex when the circuit is connected, and the connection is unstable; the lead wire is required to be connected with a circuit through a terminal board, so that the circuit connection cost is high; a gap needs to be left between the cone and the damper, so that the thickness of the loudspeaker is large, and the loudspeaker is difficult to apply to an ultrathin loudspeaker.

SUMMERY OF THE UTILITY MODEL

Therefore, the present invention is needed to provide a diaphragm, which is installed in a speaker, so that the speaker has less noise, less distortion and better sound effect; the circuit connection is stable, no fracture occurs, and the service life is long; the product has simple and convenient process, low cost and light and thin whole body.

The utility model also provides a speaker.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

a diaphragm includes a conductive member for electrically connecting a voice coil and an external circuit.

The vibrating diaphragm is provided with the conductive part, and the conductive part enables the vibrating diaphragm to be in circuit connection with the voice coil and an external circuit, so that a nylon wire is avoided, when the vibrating diaphragm vibrates, the internal conductive part is not influenced by vibration, noise can be reduced, even if vibration division occurs, the sound effect cannot be distorted, vibration can be balanced, and distortion can be reduced; the conductive part is arranged on the vibrating membrane and cannot be broken compared with the lead wire, so that the service life of the whole loudspeaker is prolonged; when in connection, the vibrating membrane is directly connected with the circuit, so that the circuit connection is simpler and more stable; the conductive parts are directly connected with the circuit through the bonding pads, so that the circuit connection cost is lower; the gap between the diaphragm and the damper can be made smaller, so that the thickness of the whole loudspeaker is smaller and thinner.

In some embodiments, the conductive member includes a conductive layer and an insulating layer connected to a surface of the conductive layer.

In some embodiments, the conductive layer is connected to the insulating layer by a glue layer.

In some embodiments, the diaphragm includes a body, the conductive member being mounted to a face of the body; or the conductive member is mounted within the body such that the conductive member is not exposed outside the body; or the conductive component is inserted on the body.

In some embodiments, the conductive member is mounted on a surface of the body that is not exposed.

In some embodiments, the conductive member extends to a bottom position of an outer edge of the body.

In some embodiments, a conductive bracket electrically connected to the conductive member is mounted on a portion of the body near the outer edge, and a bottom of the conductive bracket extends to a bottom position of the outer edge of the body for connecting to the external circuit.

In some embodiments, the diaphragm includes a film body made of a conductive material, the conductive material includes a conductive layer and an insulating layer connected to a surface of the conductive layer, a non-conductive isolation member is disposed in the film body, the non-conductive isolation member separates the film body into at least two parts, any two parts are respectively used for electrically connecting the voice coil and the external circuit, and the film body forms the conductive member.

In some embodiments, a center hole is formed in the center of the conductive part, a conductive inner ring is arranged on the edge of the conductive part corresponding to the center hole, at least one inner pad electrically connected with the voice coil is arranged on the conductive inner ring, a conductive outer ring is arranged on the outer edge of the conductive part, and at least one outer pad electrically connected with the external circuit is arranged on the conductive outer ring.

The utility model also provides a loudspeaker, including the magnet and with magnet complex voice coil loudspeaker voice coil, still include the vibrating diaphragm, electrically conductive parts respectively with voice coil loudspeaker voice coil and external circuit electricity are connected.

Drawings

Fig. 1 is a schematic structural diagram of a diaphragm according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural diagram of a conductive component according to a preferred embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a diaphragm according to a second embodiment of the present invention, wherein the diaphragm is in a shape of a pot;

fig. 4 is a schematic view of an internal structure of a diaphragm according to a third embodiment of the present invention, wherein the diaphragm is in a shape of a pot;

fig. 5 is a schematic view of an internal structure of a diaphragm according to a fourth embodiment of the present invention, wherein the diaphragm is in a shape of a pot;

fig. 6 is a schematic view of an internal structure of a diaphragm according to a fifth embodiment of the present invention, wherein the diaphragm is in a shape of a pot;

FIGS. 7-10 are schematic views of differently shaped diaphragms, all of which may be combined with a conductive member;

FIG. 11 is a top view of the diaphragm of FIG. 1;

fig. 12 is a top view of a diaphragm according to a fourth embodiment of the present invention;

fig. 13 is a schematic structural diagram of a speaker according to a fifth embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example one

Referring to fig. 1, 3 and 4, the present invention provides a diaphragm 10, which includes a conductive component 20, wherein the conductive component 20 is electrically connected to a voice coil 30 of a speaker and an external circuit, respectively.

Referring to fig. 2, in an embodiment, in order to ensure the safety of the conductive component 20, the conductive component 20 includes a conductive layer 21 and an insulating layer 22 connected to a surface of the conductive layer 21. If the conductive member 20 is exposed to the outside, no safety hazard is generated, and the safety of the operator can be ensured when the conductive member 20 is mounted or when the circuit is electrically connected. The insulating layer 22 may also make the conductive member 20 more flexible and more convenient for bonding with other materials. The insulating layer 22 may also enhance the rigidity and strength of other materials laminated to the conductive member 20, resulting in a higher vibration balance of the diaphragm.

The number of the insulating layers 22 may be one or more, for example, the conductive layer 21 is connected to one insulating layer 22 through a glue layer, or the surface of the insulating layer 22 is connected to another insulating layer 22 through a glue layer, and so on, a plurality of insulating layers 22 may be disposed.

The conductive member 20 described above may be a printed circuit.

In one embodiment, the conductive layer 21 is connected to the insulating layer 22 by a glue layer 23. For example, the conductive layer 21 is made of a copper material, and the insulating layer 22 is made of a material such as PET (polyethylene terephthalate), PEEK (polyether ether ketone), PEI (polyetherimide), and PEN (polyethylene naphthalate), and the like, and can perform an insulating function.

Referring to fig. 1, 3 and 4, in an embodiment, the diaphragm 10 includes a body 11, and a conductive member 20 is mounted on one surface of the body 11. The body 11 may be a paper material, a polypropylene material, an aluminum alloy material, a composite material, or the like, all of which may achieve its purpose. In the manufacturing, the conductive member 20 is directly glued and hot-pressed to one surface of the body 11.

The body 11 includes a body 110 and a hanging edge 111 (vibrating edge), the hanging edge 111 is connected to the edge of the body 110, or the body 110 and the hanging edge 111 can be integrally formed.

The conductive layer 21, i.e. the circuit diagram, may be made into a net shape, etc., and the insulating layer 22 is made into the same shape as the body 11, so that the overall shape of the conductive component 20 is the same as or similar to the body 11, and can be more suitable for the body 11, so as to be connected with the body 11. Such as the shape of the insulating layer 22 being concave, convex, dome-shaped, conical, square, flat, racetrack, oval, etc.

Referring to fig. 1, in order to make the diaphragm 10 safe to use and beautiful in appearance, the conductive member 20 is pressed on a surface of the body 11 not exposed, that is, the conductive member 20 is pressed on a surface of the body 11 close to the magnet 40, and the surface is not directly facing people, so that safety can be ensured.

Referring to fig. 11, in an embodiment, when the diaphragm 10 is made into a basin shape, since there is a hole in the middle of the diaphragm, correspondingly, a center hole 22 is opened at the center of the conductive part 20, a conductive inner ring 23 is provided at the edge of the conductive part 20 corresponding to the center hole 22, and a conductive outer ring 24 is provided at the outer edge of the conductive part 20.

Referring to fig. 1 and 3, the bonding pad 201 includes at least one inner bonding pad 25 and one outer bonding pad 26, the inner bonding pad 25 is electrically connected to the voice coil 30, and the outer bonding pad 26 is electrically connected to an external circuit. The number of the inner pads 25 and the outer pads 26 may be plural, and the connection is performed by a plurality of pads.

The inner pad 25 and the outer pad 26 may be disposed at appropriate positions according to the overall shape of the speaker.

The diaphragm may be formed in any shape, for example, a flat film shape, a cone shape, a pot shape, a dome shape, a band shape, etc., and pads may be provided at corresponding positions according to the shape to connect the voice coil 30 and an external circuit. Fig. 7 is a structural view of a convex-edge paper cone. Please refer to fig. 8, which is a structural diagram of the convex edge diaphragm; please refer to fig. 9, which is a structural diagram of the concave edge diaphragm; fig. 10 is a structural diagram of a square diaphragm. The conductive member 20 may be combined with the diaphragm of the above-described structure.

Example two

Referring to fig. 3 and 4, the diaphragm of the present embodiment is different from the first embodiment in that the conductive member 20 is installed in the body 11 so that the conductive member 20 is not exposed outside the body 11. Thus, the original appearance and material of the body 11 are not affected. When the diaphragm 10 is manufactured, the conductive member 20 is directly press-fitted into the body 11, and the edge of the conductive member 20 is exposed from the body 11 and is provided with the pad 201 for circuit connection.

Alternatively, the conductive member 20 extends to a bottom position of the outer edge of the body 11. This facilitates connection of the voice coil 30 and/or the conductive member 20 to external circuitry, and hides the connection portions. For example, when the diaphragm is in the shape of a flat film, the voice coil 30 and the external circuit are connected to the bottom edge position of the conductive member 20, and when the diaphragm is in the shape of a tub, the external circuit is connected to the bottom edge position of the conductive member 20, and the voice coil 30 is connected to the center position of the conductive member 20. Of course, the conductive member 20 may extend only to the edge of the body 11, and the circuit connection may be realized.

EXAMPLE III

Referring to fig. 4, the diaphragm of the present embodiment is different from the second embodiment in that a conductive bracket 27 electrically connected to the conductive member 20 is mounted on a portion of the body 11 near the outer edge, and a bottom of the conductive bracket 27 extends to a bottom position of the outer edge of the body 11. Thus, the external circuit is connected to the voice coil 30 and/or the conductive member 20 from the bottom edge of the body 11, and the conductive member 20 does not protrude from the body, thereby facilitating the mounting of the conductive member 20. For example, when the diaphragm is in the shape of a flat film, the voice coil 30 and the external circuit are connected to the bottom edge position of the conductive member 20, and when the diaphragm is in the shape of a tub, the external circuit is connected to the bottom edge position of the conductive member 20, and the voice coil 30 is connected to the center position of the conductive member 20.

Example four

Referring to fig. 5, the diaphragm of the present embodiment is different from the second embodiment in that a supporting bracket 28 is installed at the bottom of a portion of the body 11 near the outer edge, and the outer pad 26 of the conductive component 20 extends to the side of the supporting bracket 28, so that the supporting bracket 28 supports the outer pad 26.

EXAMPLE five

Referring to fig. 6, in the diaphragm of the present embodiment, the conductive member 20 is inserted into the main body 11, that is, the conductive member 20 is combined with the main body 11 in a manner similar to weaving, so as to achieve the purpose.

EXAMPLE six

Referring to fig. 12, a diaphragm of the present embodiment is different from the first embodiment in that the body 11 is not provided, the diaphragm includes a diaphragm body 12 made of a conductive material, the conductive material includes a conductive layer and an insulating layer connected to a surface of the conductive layer, a non-conductive isolation member 23 is provided in the diaphragm body 12, the non-conductive isolation member 23 separates the diaphragm body into at least two parts, the diaphragm body 12 forms a conductive member 20, and any two parts are provided with an inner pad and an outer pad for electrically connecting the voice coil 30 and an external circuit, respectively. That is, the whole diaphragm is only composed of the conductive part 20, the conductive part 20 is insulated from the outside, the safety can be ensured, the non-conductive isolation part 23 separates the inside, so that each part is not communicated, and two parts can be respectively selected to form a positive electrode and a negative electrode, so that the circuit communication is realized.

The other arrangement of the conductive member 20 in this embodiment is the same as that in the first embodiment.

The diaphragm of the present embodiment may be formed in any shape, such as a flat membrane shape or a pot shape.

EXAMPLE seven

Referring to fig. 13, the present embodiment provides a speaker 100, where the speaker 100 includes a magnet 40 and a voice coil 30 cooperating with the magnet 40, and further includes a diaphragm 10 according to the first embodiment or the second embodiment, and the conductive part 20 is electrically connected to the voice coil 30 and an external circuit, respectively, and then the circuit is turned on after the connection, so that the speaker can normally operate. This embodiment shows the structure of an external magnetic cone speaker. Of course, the speaker 100 may be any type of speaker, and the present embodiment is merely illustrative of one implementation.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A diaphragm comprising a conductive member for electrically connecting a voice coil and an external circuit; the conductive member comprises a conductive layer; the vibrating membrane further comprises a body, and the conductive component is mounted on one surface of the body; or the conductive member is mounted within the body such that the conductive member is not exposed outside the body; or the conductive component is inserted on the body.

2. The diaphragm of claim 1, wherein the conductive member comprises an insulating layer connected to a surface of the conductive layer.

3. The diaphragm of claim 2 wherein the conductive layer is connected to the insulating layer by a glue layer.

4. The diaphragm according to claim 1, wherein the conductive member is attached to a surface of the body not exposed to the outside.

5. The diaphragm of claim 1, wherein the conductive member extends to a bottom position of an outer edge of the body.

6. The diaphragm according to claim 1, wherein a portion of the body near the outer edge is mounted with a conductive holder electrically connected to the conductive member, and a bottom of the conductive holder extends to a bottom position of the outer edge of the body for connection to the external circuit.

7. The diaphragm of claim 1, wherein the conductive member has a center hole formed at the center thereof, and a conductive inner ring is disposed at an edge of the conductive member corresponding to the center hole, the conductive inner ring having at least one inner pad for electrically connecting the voice coil, and the conductive outer ring having at least one outer pad for electrically connecting the external circuit at an outer edge thereof.

8. A diaphragm comprising a conductive member for electrically connecting a voice coil and an external circuit; the diaphragm comprises a diaphragm body made of a conductive material, the conductive material comprises a conductive layer and an insulating layer connected to the surface of the conductive layer, a non-conductive isolation part is arranged in the diaphragm body, the diaphragm body is divided into at least two parts by the non-conductive isolation part, any two parts are respectively used for electrically connecting the voice coil and the external circuit, and the diaphragm body forms the conductive part.

9. The diaphragm of claim 8, wherein the conductive member has a center hole formed at the center thereof, and a conductive inner ring is disposed at an edge of the conductive member corresponding to the center hole, the conductive inner ring having at least one inner pad for electrically connecting the voice coil, and the conductive outer ring having at least one outer pad for electrically connecting the external circuit at an outer edge thereof.

10. A loudspeaker comprising a magnet and a voice coil cooperating with said magnet, further comprising a diaphragm according to any one of claims 1 to 9, said conductive member being electrically connected to said voice coil and to an external circuit, respectively.