KR200474384Y1 - Wiring member and speaker device having the same - Google Patents

Wiring member and speaker device having the same Download PDF

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Publication number
KR200474384Y1
KR200474384Y1 KR2020130002124U KR20130002124U KR200474384Y1 KR 200474384 Y1 KR200474384 Y1 KR 200474384Y1 KR 2020130002124 U KR2020130002124 U KR 2020130002124U KR 20130002124 U KR20130002124 U KR 20130002124U KR 200474384 Y1 KR200474384 Y1 KR 200474384Y1
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KR
South Korea
Prior art keywords
voice coil
speaker device
fixed
lead wire
internal terminal
Prior art date
Application number
KR2020130002124U
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Korean (ko)
Inventor
조태관
김석경
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(주) 모토텍
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Publication of KR200474384Y1 publication Critical patent/KR200474384Y1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring member of a speaker device and a speaker device including the wiring member. A voice coil wound around a lower portion of the diaphragm to form a lead wire; A magnetic circuit for supplying a magnetic field to the voice coil; A signal input line for transmitting an audio signal generated from an external circuit to the voice coil; And a case to which the magnetic circuit and the diaphragm are coupled, wherein the speaker device has one end fixedly mounted to the case and the other end connected to the lead wire to elastically support the lead wire And a wiring member receiving the audio signal from the signal input line and transmitting the received audio signal to the lead line.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a wiring member of a speaker device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring member of a speaker device and a speaker device including the same, and more particularly to a wiring member of a speaker device for reducing the weight of a vibration system and reducing the possibility of disconnection of a voice coil lead wire, will be.

 The speaker device vibrates the diaphragm according to an audio signal, which is an electrical signal, to generate sound. The dynamic speaker has a structure that vibrates by transmitting the electromagnetic force generated by the voice coil and the magnetic field circuit to the diaphragm. On the other hand, in order for a voice coil located at the center of the bottom of the diaphragm to receive an audio signal from the outside, an electric path is required to be connected to an external terminal of the speaker device.

 However, when the end portion of the voice coil is used as a wiring member connecting the lead wire to the external terminal, the diameter of the voice coil is very small and the length from the voice coil to the external terminal is long. Therefore, So that there is a high possibility that a failure due to disconnection occurs.

The traditional way to solve this problem is to use thicker gold lines than voice coils. Korean Patent Registration No. 1983-0000581 "Method of Manufacturing Voice Coil for Spirer" discloses a method of connecting the end portion of a voice coil to a gold wire. When the gold wire is used as the wiring member, there is an effect that the probability of occurrence of defects due to disconnection is remarkably reduced.

However, according to the conventional technique using gold wire as electric wiring, there is the following problem.

First, there is a problem that the weight of the gold line increases the weight of the vibration system, thereby lowering the speaker efficiency. In a speaker with a small weight of a vibration meter, the weight of the gold line increases, and the speaker efficiency is further reduced.

Second, the tension of the gold line acts on the vibration system, and the vibration of the vibration plate is distorted, resulting in negative distortion. It is ideal to make the vibration of the diaphragm up and down. However, when the gold wire is used, the vibration of the diaphragm is distorted due to the inconsistency of the gold wire tension of both terminals.

In order to solve this problem, it is general to use a suspension supporting a vibration system as an electric wiring without using a gold line in a mini speaker used for a TV speaker or a mobile phone. Korean Utility Model Registration No. 20-1989-0002563, entitled " Input Line Connection Device for Speaker ", discloses use of an electric insulating damper having a collation with an electric conductor by adding a thin conductor, and Korean Patent Registration No. 10- 0963559 "Slim type speaker" discloses the use of a flexible PCB as an electrical wiring functioning as a diaphragm support suspension.

According to the conventional technique using the suspension as an electric path, there is an advantage that the problem of the weight increase of the vibration system due to the gold line and the problem of the distortion of the sound due to the gold line tension can be solved because the gold line is not used.

However, when using a suspension as an electric path, there are the following problems.

First, the lead terminal of the suspension and the voice coil may be disconnected. Since the lead terminal of the voice coil is connected only to the suspension which is formed close to the diaphragm, the risk of disconnection is reduced, but when the lead wire is soldered or welded to the suspension for a long time, continuous stress is applied to the lead terminal of the voice coil, do.

Second, since the suspension has to form an electric path, it contains a metal having a high specific gravity, resulting in an increase in the weight of the vibration system due to an increase in the weight of the suspension. That is, according to this conventional technology, there is a problem that a heavy metal leaf spring and a flexible PCB must be used for the suspension to form an electric path, and a light suspension such as a conventional paper or fabric can not be used.

KR 1983-000581 B1 KR 1989-0002563 Y1 KR 963559 B1

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a wiring member and a speaker device including the wiring member according to the present invention which minimize the possibility of disconnection of a voice coil lead wire by using a wiring member fixed to a case and elastically supporting a lead terminal .

The wiring member and the speaker device including the wiring member according to the embodiment of the present invention are characterized in that the extension of the wiring member is formed by extending in the voice coil direction to shorten the length of the voice coil lead wire to minimize the possibility of forming the voice coil lead wire .

Since the wiring member according to the embodiment of the present invention and the speaker device including the wiring member form the electric wiring with the voice coil via the wiring member in addition to the suspension supporting the diaphragm, the suspension is realized as a light electric insulating material, So as to prevent the speaker efficiency from being lowered.

The wiring member and the speaker device including the wiring member according to the embodiment of the present invention are formed so that the width of the wiring member becomes narrower or thinner as it goes toward the end portion, thereby increasing the elasticity of the wiring member and reducing the stress applied to the voice coil lead wire For other purposes.

In order to achieve the above object, the present invention provides a wiring member according to the present invention, wherein the wiring member is fixed to a speaker device component that does not vibrate in spite of the vibration of the diaphragm; An elastic part extending from the fixing part in an inward direction of the speaker device and being not fixed to the other components of the speaker device to provide a predetermined elasticity; And an internal terminal portion formed on the elastic portion so as to be spaced apart from the fixed portion by a predetermined distance and electrically connected to a lead wire extending from the voice coil and having a diameter substantially equal to the voice coil diameter, And elastically supports the lead wire and provides an electric path to the lead wire of the voice coil.

In the wiring member according to the embodiment of the present invention, the internal terminal portion has a width narrower than the width of the fixing portion.

In the wiring member according to the embodiment of the present invention, the internal terminal portion is formed at an end portion of the elastic portion facing the fixed portion, and the elastic portion has a width gradually increasing from the fixing portion toward the internal terminal portion .

In the wiring member according to the embodiment of the present invention, the internal terminal portion has a thickness smaller than the thickness of the fixing portion.

In the wiring member according to the embodiment of the present invention, the internal terminal portion is formed at an end portion of the elastic portion facing the fixed portion, and the elastic portion has a thickness gradually increasing from the fixing portion toward the internal terminal portion .

In the wiring member according to the embodiment of the present invention, the fixing portion is fixed to the surface of a case or a frame of the speaker device.

In the wiring member according to the embodiment of the present invention, the fixing portion is fixed to an outer peripheral surface of a case or a frame of the speaker device, and the elastic portion penetrates through a case or a frame of the speaker device.

The wiring member according to an embodiment of the present invention may further include an external terminal portion formed on the fixing portion or extended from the fixing portion and electrically connected to the signal input line.

A speaker device according to the present invention includes: a diaphragm; A voice coil wound around a lower portion of the diaphragm to form a lead wire; A magnetic circuit for supplying a magnetic field to the voice coil; A signal input line for transmitting an audio signal generated from an external circuit to the voice coil; And a case to which the magnetic circuit and the diaphragm are coupled, wherein the speaker device has one end fixedly mounted to the case and the other end connected to the lead wire to elastically support the lead wire And a wiring member receiving the audio signal from the signal input line and transmitting the received audio signal to the lead line.

In the speaker device according to the embodiment of the present invention, the wiring member may include: a fixing part fixed to the case; An elastic part extending from the fixing part in the voice coil direction and providing a predetermined elasticity; And an internal terminal portion formed on the elastic portion so as to be spaced apart from the fixed portion by a predetermined distance, the lead terminal being electrically connected to the internal terminal portion.

In the speaker device according to the embodiment of the present invention, the internal terminal portion has a width narrower than the width of the fixing portion.

In the speaker device according to the embodiment of the present invention, the internal terminal portion has a thickness smaller than the thickness of the fixing portion.

In the speaker device according to the embodiment of the present invention, the fixing portion is fixed to the outer peripheral surface of the case, and the elastic portion penetrates the case of the speaker device.

The speaker device according to an embodiment of the present invention is characterized in that the wiring member further comprises an external terminal portion formed on the fixed portion or extended from the fixed portion and electrically connected to the signal input line .

According to the above configuration, the wiring member according to the present invention and the speaker device including the same provide the effect of minimizing the possibility of disconnection of the voice coil lead wire by using a wiring member fixed to the case and elastically supporting the lead terminal.

The wiring member and the speaker device including the wiring member according to the embodiment of the present invention are formed by extending the extension of the wiring member in the voice coil direction to shorten the length of the voice coil lead wire to minimize the possibility of forming the voice coil lead wire to provide.

Since the wiring member according to the embodiment of the present invention and the speaker device including the wiring member form the electric wiring with the voice coil via the wiring member in addition to the suspension supporting the diaphragm, the suspension is realized as a light electric insulating material, Thereby preventing the speaker efficiency from being lowered.

The wiring member and the speaker device including the wiring member according to the embodiment of the present invention are formed so that the width of the wiring member becomes narrower or thinner as it goes toward the end portion, thereby increasing the elasticity of the wiring member and reducing the stress applied to the voice coil lead wire Effect.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a coupling diagram showing a coupling between a wiring member and a diaphragm according to an embodiment of the present invention; Fig.
Fig. 2 is a view showing a coupling between a wiring member and a case according to an embodiment of the present invention; Fig.
3 is a plan view of a wiring member according to an embodiment of the present invention;
4 is a side view of a wiring member according to an embodiment of the present invention.

Hereinafter, a wiring member of a speaker device according to the present invention and a speaker including the same will be described with reference to the drawings.

≪ Wiring member of speaker device >

The wiring member 10 of the speaker device according to the present invention includes the fixing portion 11, the elastic portion 12, and the internal terminal portion 13. [

The fixed portion 11 of the wiring member 10 is fixed to the surface of the bottom, inner circumferential surface, end surface, outer circumferential surface, etc. of the speaker device constituent element such as the case 30 or the frame which does not vibrate in spite of the vibration of the diaphragm 23. [ . The fixing portion 11 can be configured to be screwed into the case 30 as shown in Fig. 4, and it is not limited thereto, and it is possible to use a known fixing method such as gluing or fitting through the gluing means, It can be fixed to parts.

 The elastic portion 12 is formed in the fixing portion 11 so as to extend in the inner direction of the speaker device, for example, in the direction of the bobbin in which the voice coil 22 is wound, and is not fixed to the components of other speaker devices to provide a constant elasticity do. The elastic portion 12 is not particularly limited as long as it is a material capable of providing elasticity such as a metal, a polymer resin or the like. However, in the embodiment in which the wiring member 10 also directly functions as an external input terminal, it is preferable that the audio signal from the signal input line 40 is formed of a conductive metal in order to apply the audio signal to the voice coil 22, In the case of using a material, it is preferable to configure such that the electric wiring is added to the surface or the inside thereof like a flexible PCB.

It is more preferable that the elastic portion 12 is formed close to the voice coil 22. According to this embodiment, the length of the lead wire 21 is shortened and the possibility of disconnection is reduced.

The internal terminal portion 13 is formed on the elastic portion 12 so as to be spaced apart from the fixed portion 11 by a predetermined distance and is provided with a lead wire 21 extending from the voice coil 22 and having a diameter substantially equal to the diameter of the voice coil 22, Are electrically connected. It is preferable that the internal terminal portion 13 is formed at the end of the wiring member 10 having the highest elasticity as shown in Figs. 3 and 4 for elastically supporting the lead wire 21. The lead wire 21 is attached to the lead wire 21 by a method such as soldering or welding. At this time, by setting the length of the lead wire 21 to be larger than the shortest distance between the voice coil 22 and the internal terminal portion 13, minimizing the stress applied to the lead wire 21 may lower the possibility of disconnection.

According to the configuration of the wiring member 10 according to the present invention, since the lead wire 21 is elastically supported by the elastic portion 12, the vibration of the diaphragm 23 is caused by the magnetic force generated by the magnetic circuit and the voice coil 22 The lead wires 21 are not subjected to direct stress and the defects of the speaker devices due to disconnection of the lead wires 21 are reduced to improve the reliability of the speaker devices.

Further, since the wiring member 10 provides an electrical path to the voice coil 22, it is possible to use a damper formed of a paper material, a polymer film, a pavement or the like, which is a light material but is electrically insulating material, The weight of the vibration system can be reduced as compared with the conventional speaker. Reducing the weight of the vibrometer reduces the required diaphragm driving force, enabling the speaker device to be slimmed using a lower profile magnet, as well as improve speaker efficiency (speaker efficiency is proportional to the square of diaphragm weight). In addition, in the case of a conventional speaker device using a metal suspension, the stiffness of the vibration system is increased due to the metal suspension, thereby increasing the resonance frequency and degrading the low-frequency characteristics (resonance frequency is represented by the square root of the hardness of the vibration system According to the present invention, since paper, polymer film, or fabric, which is a material having a low hardness, can be used as a suspension, the stiffness can be lowered and the resonance frequency can be reduced to improve the low frequency characteristics.

3, it is preferable that the width w1 of the internal terminal portion 13 is narrower than the width w2 of the fixing portion 11. More preferably, the internal terminal portion 13 is formed at the end portion of the elastic portion 12 opposed to the fixing portion 11, and the elastic portion 12 is located close to the internal terminal portion 13 in the fixing portion 11 The width is gradually narrowed. According to this embodiment, the elastic displacement becomes larger as the inner terminal portion 13 gets closer to the inner terminal portion 13, thereby minimizing the stress applied to the lead wire 21, thereby further reducing the possibility of disconnection of the lead wire 21.

4, the thickness t1 of the internal terminal portion 13 is preferably smaller than the thickness t2 of the fixing portion 11, and more preferably, the internal terminal portion 13 is formed to have a thickness The elastic portion 12 is formed so as to gradually decrease in thickness as it approaches the internal terminal portion 13 from the fixed portion 11. The elastic portion 12 is formed at an end portion of the elastic portion 12 facing the fixing portion 11, According to this embodiment, the elastic displacement becomes larger as the inner terminal portion 13 gets closer to the inner terminal portion 13, thereby minimizing the stress applied to the lead wire 21, thereby further reducing the possibility of disconnection of the lead wire 21.

2 shows an embodiment in which the wiring member 10 penetrates the case 40 or the frame. That is, the fixing portion 11 is fixed to the outer surface of the case 30 or the frame of the speaker device, and the elastic portion 12 is configured to penetrate the case 30 or the frame of the speaker device. More preferably, the wiring member 10 further includes an external terminal portion 14 formed in the fixing portion 11 or extended from the fixing portion 11 and electrically connected to the signal input line 40. According to this embodiment, the wiring member 10 functions as a terminal terminal to which the external terminal portion 14 is directly connected, thereby providing the effect of simplifying the structure of the speaker device.

The elastic portion 12 does not penetrate directly through the case 30 and the fixing portion 11 is formed on the upper surface of the side wall of the case 30 where the case 30 and the diaphragm 23 are engaged as shown in FIG. And the external terminal portion 14 may be extended outside the case 30, which is opposite to the elastic portion 12, on the inside of the case 30.

≪ Speaker device including wiring member >

The speaker device including the wiring member 10 according to the present invention includes a diaphragm 23, a voice coil 22, a magnetic circuit (not shown), a signal input line 40, a case 30, and a wiring member 10 ).

The diaphragm 23 vibrates up and down according to an input audio signal to generate a negative pressure. The shape of the diaphragm 23 is not particularly limited, and a diaphragm 23 of a known shape can be used. For example, the plane shape of the diaphragm 23 may be a circular, elliptical, track curved shape, a square, a polygonal shape including a rectangle, or an irregular shape depending on the embodiment. The longitudinal section of the diaphragm 23 may be dome-shaped, cone-shaped, or planar. In some embodiments, the diaphragm 23 may further include a concave or convex pattern on its surface. The diaphragm 23 may be made of paper, metal, PCB, fabric, polymer film, and the like, and is not particularly limited.

The voice coil 22 is wound around the lower portion of the diaphragm 23 so that the lead wire 21 is formed on the undersurface of the diaphragm 23. The voice coil 22 has a diameter that is significantly thicker than the voice coil 22, Are not additionally connected. According to this structure, it is possible to prevent the weight of the vibration system from increasing due to the gold slanting line or the like, and the vibration of the vibration plate 22 can be prevented from being distorted due to the influence of the tension generated by the gold slanting line.

The voice coil 22 may be connected to the diaphragm 23 through the bobbin as shown in Fig. 1, and although not shown, the voice coil 22 may be self-bonded without the bobbin including the adhesive layer, . Since the voice coil 22 functions as an electric wire, it is basically selected as a conductive material, and for example, a copper wire or a CCAW (Copper Claded Aluminum Wire) is generally used. The voice coil 22 may be wound in a circular shape as shown in FIG. 1, but it is not limited thereto, and may be formed into a closed curved surface of an elliptical or track type, a polygon including a square or a rectangle, have.

The magnetic circuit functions to supply a magnetic field to the voice coil 22 and to supply the magnetic field to the voice coil 22 through a narrow gap. The structure of the magnetic circuit is not particularly limited, and may be an inner shape, an outer shape, an inner / outer shape, or the like.

The signal input line 40 transmits the audio signal generated from the external circuit to the voice coil 22 and can be electrically connected to the external terminal or the wiring member 10 according to the present invention.

The case 30 is coupled to the magnetic circuit and the diaphragm 23 and forms the outer shape of the speaker device. Depending on the embodiment, it may be in the form of a frame which is partially open and has a smaller cross-sectional area than the diaphragm 23. [

One end of the wiring member 10 is fixedly mounted to the case 30 and the other end is connected to the lead wire 21 to elastically support the lead wire 21 and the audio signal is output from the signal input line 40 And transmits it to the lead wire 21.

The wiring member may include the fixing portion 11, the elastic portion 12 and the internal terminal portion 13. In order to reduce the stress applied to the lead wire 21 and to reduce the possibility of a short circuit, The width w1 of the internal terminal portion 13 may be narrower than the width w2 of the fixing portion 11 or the thickness t1 of the internal terminal portion 13 may be set smaller than the thickness t2 of the fixing portion 11, It is preferable to form it smaller. Of course, it is more preferable to use the above-described two features.

10: wiring member 11:
12: elastic portion 13: internal terminal portion
14: external terminal portion 21: lead wire
22: voice coil 23: diaphragm
30: Case 40: Signal input line

Claims (14)

A fixing part fixed to the speaker device component which does not vibrate in spite of the vibration of the vibration plate;
An elastic part extending from the fixing part in an inward direction of the speaker device and being not fixed to the other components of the speaker device to provide a predetermined elasticity; And
And an internal terminal portion formed on the elastic portion so as to be spaced apart from the fixed portion by a predetermined distance and electrically connected to lead wires extending from the voice coil and having diameters equal to the voice coil diameter,
Wherein the internal terminal portion is provided with an elastic member for elastically supporting the lead wire of the voice coil and provides an electric path to the lead wire of the voice coil, and the width or thickness of the internal terminal portion is smaller than the width or thickness of the fixing portion.
delete The method according to claim 1,
Wherein the internal terminal portion is formed at an end portion of the elastic portion facing the fixed portion,
Wherein the elastic portion gradually narrows in width as the fixed portion is closer to the internal terminal portion.
delete The method according to claim 1,
Wherein the internal terminal portion is formed at an end portion of the elastic portion facing the fixed portion,
Wherein the elastic portion gradually decreases in thickness as the fixing portion gets closer to the internal terminal portion.
The apparatus according to claim 1,
Wherein the speaker unit is fixed to a surface of a case or a frame of the speaker unit.
The method according to claim 6,
Wherein the fixing portion is fixed to an outer peripheral surface of a case or a frame of the speaker device,
Wherein the elastic portion penetrates a case or a frame of the speaker device.
The semiconductor device according to claim 1,
And an external terminal portion formed on the fixed portion or extended from the fixed portion and electrically connected to the signal input line.
tympanum;
A voice coil wound around a lower portion of the diaphragm to form a lead wire;
A magnetic circuit for supplying a magnetic field to the voice coil;
A signal input line for transmitting an audio signal generated from an external circuit to the voice coil; And
And a case coupled to the magnetic circuit and the vibration plate,
The speaker device includes a wiring member having one end fixedly mounted to the case and the other end connected to the lead wire to elastically support the lead wire and to receive the audio signal from the signal input line and transmit the audio signal to the lead wire Including,
Wherein,
A fixing part fixed to a speaker device component which does not vibrate in spite of the vibration of the diaphragm; An elastic part extending from the fixing part in the voice coil direction and providing a predetermined elasticity; And an internal terminal portion formed on the elastic portion to be spaced apart from the fixing portion by a predetermined distance, the internal terminal portion being electrically connected to the lead wire,
Wherein the width or thickness of the internal terminal portion is smaller than the width or thickness of the fixing portion.
delete delete delete 10. The method of claim 9,
Wherein the fixing portion is fixed to an outer peripheral surface of the case,
Wherein the elastic portion penetrates a case of the speaker device.
10. The semiconductor device according to claim 9,
Further comprising: an external terminal portion formed on the fixed portion or extended from the fixed portion and electrically connected to the signal input line.
KR2020130002124U 2013-03-21 2013-03-21 Wiring member and speaker device having the same KR200474384Y1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105208488A (en) * 2015-09-21 2015-12-30 广东欧珀移动通信有限公司 Closed type loudspeaker and electronic terminal
KR101673296B1 (en) * 2015-06-12 2016-11-08 주식회사 비에스이 Pattern diaphram and method of making the same
KR101748344B1 (en) 2014-05-13 2017-06-16 고어텍 인크 Loudspeaker module
KR20180083015A (en) * 2017-01-11 2018-07-20 에스텍 주식회사 Speaker system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08289396A (en) * 1995-04-18 1996-11-01 Alpine Electron Inc Speaker
JP2000354286A (en) * 1999-06-09 2000-12-19 Sony Corp Loudspeaker, loudspeaker box, and manufacture of loudspeaker
WO2009016743A1 (en) * 2007-07-31 2009-02-05 Pioneer Corporation Speaker apparatus
JP2011135233A (en) * 2009-12-22 2011-07-07 J&K Car Electronics Corp Speaker apparatus and wiring structure thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08289396A (en) * 1995-04-18 1996-11-01 Alpine Electron Inc Speaker
JP2000354286A (en) * 1999-06-09 2000-12-19 Sony Corp Loudspeaker, loudspeaker box, and manufacture of loudspeaker
WO2009016743A1 (en) * 2007-07-31 2009-02-05 Pioneer Corporation Speaker apparatus
JP2011135233A (en) * 2009-12-22 2011-07-07 J&K Car Electronics Corp Speaker apparatus and wiring structure thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101748344B1 (en) 2014-05-13 2017-06-16 고어텍 인크 Loudspeaker module
KR101673296B1 (en) * 2015-06-12 2016-11-08 주식회사 비에스이 Pattern diaphram and method of making the same
CN105208488A (en) * 2015-09-21 2015-12-30 广东欧珀移动通信有限公司 Closed type loudspeaker and electronic terminal
KR20180083015A (en) * 2017-01-11 2018-07-20 에스텍 주식회사 Speaker system
KR101902378B1 (en) * 2017-01-11 2018-10-01 에스텍 주식회사 Speaker system

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