WO2016197535A1

WO2016197535A1 - Speaker device

Info

Publication number: WO2016197535A1
Application number: PCT/CN2015/094542
Authority: WO
Inventors: 赵国栋; 何超锋; 穆瑞祥
Original assignee: 歌尔声学股份有限公司
Priority date: 2015-06-09
Filing date: 2015-11-13
Publication date: 2016-12-15
Also published as: CN104936107A

Abstract

The present invention discloses a speaker device. The speaker device comprises a vibration system, a magnetic circuit system and an auxiliary system accommodating and fastening the magnetic circuit system and the vibration system. The vibration system comprises a vibration diaphragm, spider and voice coil. The spider comprises a second fastening portion. The speaker device further comprises an auxiliary voice coil, and the auxiliary voice coil is a planar voice coil. The second fastening portion has a planar structure, and the planar auxiliary voice coil is etched and disposed at the second fastening portion of the planar structure. In the speaker device of the present invention, an auxiliary voice coil is etched on a spider, such that the thickness of the speaker device is not increased, and a slim design of the product is enabled. In addition, the present invention also reduces manufacturing complexity of assembling the speaker device, simplifies the manufacturing process without compromising the performance of the speaker device, and facilitates the improvement of product performance. Therefore, the speaker device of the present invention has the advantages of a slim design, simple manufacturing process and excellent performance.

Description

Speaker device

Technical field

The present invention relates to the field of electroacoustics, and more particularly to a speaker device.

Background technique

With the development of science and technology, portable electronic devices have attracted widespread attention. Speaker devices, as the main sounding unit of portable electronic terminals, directly affect the use of portable electronic devices.

As portable electronic devices become thinner, the thickness of speaker devices is increasingly becoming a focus of the industry. At the same time, in order to improve the application experience of the speaker device and improve the acoustic performance of the speaker device when wearing the hearing aid, a hearing aid voice coil is usually provided in the speaker. The prior art speaker device with a hearing aid voice coil requires a separate hearing aid voice coil, and the process is complicated. The hearing aid voice coil occupies the internal space of the speaker device, affects the performance of the speaker device, and increases the production cost.

Therefore, it is necessary to propose an improvement to overcome the drawbacks of the prior art speaker device.

Summary of the invention

The technical problem to be solved by the present invention is to provide a speaker device which is thin in design, simple in process and good in performance.

In order to achieve the above object, the speaker device of the present invention adopts the following technical solutions:

A speaker device includes a vibration system, a magnetic circuit system, and an auxiliary system for housing and fixing the magnetic circuit system and the vibration system, the vibration system including a diaphragm, a centering piece and a voice coil combined The cardiac piece includes a first fixing portion, a second fixing portion disposed in the first fixing portion, and a connecting arm connecting the first fixing portion and the second fixing portion, and the speaker device further includes a support a voice coil, the hearing aid voice coil is a plane voice coil; the second fixing portion is a planar structure, and the plane hearing aid voice coil is etched on a second fixing portion of the planar structure.

As a preferred technical solution, the first fixing portion is provided with a first external pad corresponding to the hearing aid voice coil, and the hearing aid voice coil is electrically connected to the first external pad.

As a preferred technical solution, the second fixing portion is provided with a second pad corresponding to the voice coil, the voice coil is electrically connected to the second pad; and the first fixing portion is provided with a second An external pad, the second pad electrically coupled to the second external pad.

Preferably, the centering piece is provided with a conductive line, and the first fixing portion, the second fixing portion, and the connecting arm are all disposed with the conductive line.

As a preferred technical solution, the hearing aid voice coil of the planar structure is disposed on a side of the second fixing portion away from the voice coil.

As a preferred technical solution, the hearing aid voice coil of the planar structure is disposed on a side of the second fixing portion close to the voice coil, and the hearing aid voice coil avoids the voice coil setting.

As a preferred technical solution, the hearing aid voice coil may be any one of copper, silver, palladium, nickel, and molybdenum-manganese alloy.

As a preferred technical solution, the auxiliary system includes a front cover and a casing, and the first fixing portion of the centering piece is fixedly disposed between the front cover and the outer casing.

In the piezoelectric speaker of the invention, the hearing aid voice coil is a plane voice coil, and the hearing aid voice coil is etched on the surface of the second fixing portion of the centering piece, and the hearing aid voice coil and the centering piece are integrally arranged, and the hearing aid voice coil is provided. It does not occupy the internal space of the speaker device, and does not increase the thickness of the speaker device, which is advantageous for the thin design of the product. Moreover, the hearing aid voice coil is etched on the second fixing portion of the centering piece, which reduces the production difficulty in assembling the speaker device and simplifies the production process; the hearing aid voice coil does not affect the performance of the speaker device, and is beneficial to improving product performance. . Therefore, the speaker device of the present invention has the advantages of thin design, simple process, and good performance.

DRAWINGS

1 is an exploded view of a specific embodiment of a speaker device of the present invention;

Figure 2 is a side view of the centering piece of Figure 1 near the voice coil;

Figure 3 is a schematic view of the other side of the centering piece shown in Figure 2.

detailed description

The content of the present invention will be described in detail below with reference to the accompanying drawings:

As shown in FIG. 1, a specific embodiment of the speaker device of the present invention includes a vibration system, a magnetic circuit system, and an auxiliary system. The auxiliary system includes a front cover 11 and a casing 12, and the front cover 11 and the outer casing 12 house a fixed vibration system and a magnetic circuit system. The vibration system includes a diaphragm 4, a centering piece 3 and a voice coil 5 fixedly coupled with the diaphragm 4, and the magnetic circuit system includes a magnet and a magnetic conductive member. As shown in FIG. 2, the magnetic circuit system is provided with a magnetic gap, and the voice coil 5 Suspended in the magnetic gap. The external electrical signal enters the voice coil 5, and the current change in the voice coil 5 disposed in the magnetic field causes the voice coil 5 to vibrate up and down by the Lorentz force, the voice coil 5 vibrates to vibrate the diaphragm 4, and the diaphragm 4 vibrates to mobilize the air. Sounds.

As shown in FIG. 2, the centering piece 3 of the present invention includes a first fixing portion 31, a second fixing portion 32 disposed in the first fixing portion 31, and a second fixing portion 32 having a planar structure, the first fixing portion The portion 31 and the second fixing portion 32 are connected by a connecting arm 33, and the first fixing portion 31 is provided with a set of first external pads 31a. As shown in FIG. 1 and FIG. 3, the speaker device of the present invention is further provided with a hearing aid voice coil 2, the hearing aid voice coil 2 is a planar voice coil, the second fixing portion 32 is a planar structure, and the planar hearing aid voice coil 2 is etched. The second fixing portion 32 of the planar structure. The hearing aid voice coil 2 is electrically connected to an external circuit through the first external pad 31a. The hearing aid voice coil 2 is etched on the surface of the second fixing portion 32 of the centering piece 3, does not occupy the internal space of the speaker device, and is advantageous for the thin design of the speaker device, and in the assembly process of the speaker device, it is not necessary Separately set the hearing aid voice coil to reduce the production difficulty, simplify the production process and production process; and the hearing aid voice coil installed in the second fixed part of the centering piece does not affect the performance of the speaker device, which is beneficial to improve the performance of the speaker device. . Therefore, the speaker device of the present invention has the advantages of thin design, simple process, and good performance.

As shown in FIGS. 2 and 3, the second fixing portion 32 of the centering piece 3 is provided with a set of second pads 32a corresponding to the voice coil 5, and the second pads 32a are electrically connected to the voice coil 5. First fixed The portion 31 is provided with a set of second outer pads 31b, and the second outer pads 31b are electrically coupled to the second pads 32a. A conductive line is disposed on the centering piece 3, and the first fixing portion 31, the second fixing portion 32, and the connecting arm 33 are each provided with a conductive line. The external pad disposed on the first fixing portion and the hearing aid voice coil and the pad disposed on the second fixing portion are electrically connected by the conductive line. The design simplifies the circuit design inside the speaker device, facilitates the simplification of the production process, and makes full use of the internal components of the speaker device, thereby contributing to reducing the thickness of the speaker device.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the hearing aid voice coil 2 of the speaker device of the embodiment is disposed on the side of the second fixing portion 32 of the centering piece 3 away from the voice coil 5 , which can avoid hearing aids. The interference between the voice coil and the voice coil electrical connection simplifies the circuit design. Of course, in the actual application process, the hearing aid voice coil can also be disposed on the side of the second fixing portion of the centering piece with the voice coil. In this case, the hearing aid voice coil needs to avoid the voice coil setting.

In practical applications, the hearing aid voice coil may be any one of copper, silver, palladium, nickel, molybdenum-manganese alloy, or other conductive metal or alloy, and does not affect the advantages of the speaker device of the present invention.

As shown in FIG. 1, the auxiliary device of the present invention includes a front cover 11 and a casing 12. The first fixing portion 31 of the centering piece 3 is fixedly disposed between the front cover 11 and the outer casing 12, and the second fixing portion 32 is received. In the space enclosed by the front cover 11 and the outer casing 12. The hearing aid voice coil 2 disposed on the second fixing portion is also accommodated between the front cover and the outer casing, and the front cover and the outer casing can protect the hearing aid voice coil, thereby preventing the speaker from being damaged by the hearing aid voice coil during assembly and application. Ensure that the hearing aid voice coil works properly.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and equivalent modifications or variations made by those skilled in the art in light of the present invention are included in the scope of the claims.

Claims

A speaker device includes a vibration system, a magnetic circuit system, and an auxiliary system for housing and fixing the magnetic circuit system and the vibration system, the vibration system including a diaphragm, a centering piece and a voice coil combined The cardiac support piece includes a first fixing portion, a second fixing portion disposed in the first fixing portion, and a connecting arm connecting the first fixing portion and the second fixing portion, wherein the speaker device further The hearing aid voice coil is a planar voice coil; the second fixing portion is a planar structure, and the planar hearing aid voice coil is etched on the second fixing portion of the planar structure.
The speaker device according to claim 1, wherein the first fixing portion is provided with a first external pad corresponding to the hearing aid voice coil, and the hearing aid voice coil is electrically connected to the first external pad connection.
The speaker device according to claim 1, wherein the second fixing portion is provided with a second pad corresponding to the voice coil, and the voice coil is electrically connected to the second pad; The fixing portion is provided with a second outer pad, and the second pad is electrically coupled to the second outer pad.
The speaker device according to any one of claims 1 to 3, wherein the centering piece is provided with a conductive line, and the first fixing portion, the second fixing portion, and the connecting arm are all disposed. Conductive lines.
The speaker device according to claim 1, wherein the planar structure of the hearing aid voice coil is disposed on a side of the second fixing portion away from the voice coil.
The speaker device according to claim 1, wherein the hearing aid voice coil of the planar structure is disposed on a side of the second fixing portion close to the voice coil, and the hearing aid voice coil avoids the sound Circle settings.
The speaker device according to claim 1, wherein the hearing aid voice coil is any one of copper, silver, palladium, nickel, and molybdenum-manganese alloy.
A speaker device according to claim 1, wherein said auxiliary system includes a front cover and a casing, and said first fixing portion of said centering piece is fixedly disposed between said front cover and said outer casing .