WO2016051696A1 - ラウドスピーカ - Google Patents
ラウドスピーカ Download PDFInfo
- Publication number
- WO2016051696A1 WO2016051696A1 PCT/JP2015/004666 JP2015004666W WO2016051696A1 WO 2016051696 A1 WO2016051696 A1 WO 2016051696A1 JP 2015004666 W JP2015004666 W JP 2015004666W WO 2016051696 A1 WO2016051696 A1 WO 2016051696A1
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- WIPO (PCT)
- Prior art keywords
- cover
- magnetic circuit
- hole
- frame
- diaphragm
- Prior art date
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Classifications
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- 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
Definitions
- This disclosure relates to a loudspeaker used in various electronic devices.
- FIG. 3 is a schematic cross-sectional view of a conventional loudspeaker 1.
- the loudspeaker 1 includes a diaphragm 3, a metal frame 4, a voice coil body 30, and a magnetic circuit 7.
- the diaphragm 3 is provided with a dust cap 2.
- the metal frame 4 holds the diaphragm 3.
- the voice coil body 30 includes a coil bobbin 5 and a voice coil 6.
- the voice coil 6 is wound around the coil bobbin 5.
- the coil bobbin 5 is connected to the diaphragm 3.
- the magnetic circuit 7 has a through hole 8.
- the magnetic circuit 7 vibrates the coil bobbin 5 when a current is passed through the voice coil 6. Then, the diaphragm 3 vibrates via the coil bobbin 5, and sound is reproduced. When the diaphragm 3 vibrates, air existing around the magnetic circuit 7 enters and exits the through hole 8.
- the through hole 8 By forming the through hole 8, air is prevented from being sealed around the magnetic circuit 7 (in particular, a space formed by the diaphragm 3 and the magnetic circuit 7 via the voice coil body 30). That is, it is avoided by forming the through hole 8 that the vibration of the diaphragm 3 is restricted by the space being sealed.
- Patent Document 1 is known as prior art document information related to the invention of this application.
- the loudspeaker includes a frame, a diaphragm, a magnetic circuit, a voice coil body, and a cover.
- the frame has an internal space.
- the diaphragm is arranged in the internal space of the frame.
- the magnetic circuit has a first surface facing the diaphragm, a second surface opposite to the first surface, a magnetic gap, a through hole, and a first corner.
- the magnetic gap is formed on the first surface.
- the through hole penetrates between the first surface and the second surface.
- the first corner portion has a first radius of curvature, and is formed across at least one of the first surface and the second surface and a portion facing the through hole.
- the voice coil body has a first end and a second end opposite to the first end.
- the first end is coupled to the diaphragm.
- the second end is disposed in the magnetic gap.
- the cover has a second corner portion having a second radius of curvature larger than the first radius of curvature, and is formed so as to cover at least a part of the first corner portion.
- FIG. 1 is a schematic cross-sectional view illustrating a configuration of a loudspeaker according to an embodiment.
- FIG. 2 is a schematic cross-sectional view showing the configuration of another loudspeaker according to the embodiment.
- FIG. 3 is a schematic cross-sectional view of a conventional loudspeaker.
- the magnetic circuit 7 of the conventional loudspeaker 1 has a sharp end 9 that is substantially perpendicular to the side facing the through hole 8. Therefore, turbulent flow is likely to occur in the air entering and leaving the through hole 8. And the turbulence of the air which goes in and out of the through-hole 8 may generate noise.
- FIG. 1 is a schematic cross-sectional view showing a configuration of a loudspeaker 10 in the present embodiment.
- the loudspeaker 10 includes a frame 11, a diaphragm 12, a magnetic circuit 14, a voice coil body 13, and a cover 15.
- the frame 11 has an internal space 41.
- the diaphragm 12 is disposed in the internal space 41 of the frame 11.
- the magnetic circuit 14 includes a first surface 43 facing the diaphragm 12, a second surface 45 opposite to the first surface 43, a magnetic gap 19, a through hole 18, a first corner 21, Have The magnetic gap 19 is formed on the first surface 43.
- the through hole 18 penetrates between the first surface 43 and the second surface 45.
- the first corner 21 has a first radius of curvature and is formed across at least one of the first surface 43 and the second surface 45 and a portion facing the through hole 18.
- the voice coil body 13 has a first end portion 16 and a second end portion 17 on the opposite side of the first end portion 16.
- the first end 16 is coupled to the diaphragm 12.
- the second end 17 is disposed in the magnetic gap 19.
- the cover 15 has a second corner portion 22 having a second radius of curvature larger than the first radius of curvature, and is formed to cover at least a part of the first corner portion 21.
- the loudspeaker 10 includes a frame 11, a diaphragm 12, a voice coil body 13, a magnetic circuit 14, and a cover 15.
- the diaphragm 12 is provided with a dust cap 32.
- the voice coil body 13 includes a coil bobbin 51 and a voice coil 53.
- the voice coil 53 is wound around the coil bobbin 51.
- the diaphragm 12 is connected to the frame 11.
- the voice coil body 13 has a first end portion 16 and a second end portion 17, and the first end portion 16 is coupled to the diaphragm 12.
- the magnetic circuit 14 has a through hole 18 and a magnetic gap 19.
- the through hole 18 penetrates from the front surface (first surface 43) of the magnetic circuit 14 to the back surface (second surface 45) opposite to the front surface of the magnetic circuit 14.
- a first corner 21 formed with a first radius of curvature is provided around the opening 20 of the through hole 18.
- the second end 17 of the voice coil body 13 is inserted into the magnetic gap 19 of the magnetic circuit 14.
- the cover 15 is in contact with the back surface of the magnetic circuit 14.
- the cover 15 is formed with a second corner 22 having a second radius of curvature larger than the first radius of curvature.
- the space formed by the diaphragm 12 and the magnetic circuit 14 via the voice coil body 13 is not sealed.
- the diaphragm 12 vibrates, air enters and exits through the through hole 18. Therefore, the diaphragm 12 vibrates and reproduces sound in a state where distortion is suppressed.
- the second curvature radius of the cover 15 inserted into the penetration hole 18 and covering the penetration hole 18 is larger than the first curvature radius of the first corner 21. It is formed with. For this reason, when the air enters and exits through the through-hole 18, the occurrence of turbulent air flow is suppressed at the second corner portion 22. As a result, noise due to air turbulence is reduced in the through hole 18 of the loudspeaker 10.
- the cover 15 can easily absorb the mechanical vibration of the magnetic circuit 14, and the noise of the loudspeaker 10 accompanying the vibration of the magnetic circuit 14 is also reduced.
- the coil bobbin 51 is formed in a cylindrical shape.
- the diaphragm 12 and the outer peripheral surface of the first end portion 16 of the coil bobbin 51 are connected.
- a magnetic gap 19 is formed on the first surface 43 of the magnetic circuit 14.
- the second end 17 of the coil bobbin 51 is disposed in the magnetic gap 19.
- the magnetic circuit 14 vibrates the coil bobbin 51.
- the diaphragm 12 vibrates according to the movement of the coil bobbin 51.
- the diaphragm 12 is connected to the coil bobbin 51.
- the diaphragm 12 is held by the frame 11 via the diaphragm edge 23.
- the magnetic circuit 14 has a through hole 18 penetrating from the front surface of the loudspeaker 10 corresponding to the upper portion in the drawing to the rear surface corresponding to the lower portion in the drawing.
- a cover 15 that covers the magnetic circuit 14 is provided over the back surface of the magnetic circuit 14 and a portion facing the through hole 18 of the magnetic circuit 14.
- the cover 15 may cover the entire back and side surfaces of the magnetic circuit 14, or may cover a part of the magnetic circuit 14 in the vicinity of the opening 20 of the through hole 18.
- the second radius of curvature of the second corner 22 of the cover 15 is formed larger than the first radius of curvature of the first corner 21 of the magnetic circuit 14. Further, the cover 15 has a convex shape toward the axis of the through hole 18 in the vicinity of the center of the through hole 18 in the axial direction.
- the through space 18 ⁇ / b> A formed by the through hole 18 and the cover 15 has a constricted shape near the center of the through hole 18 in the axial direction.
- the through hole 18 or the through space 18A is connected to a space formed by being surrounded by the diaphragm 12 and the voice coil body 13.
- the second radius of curvature of the second corner 22 of the cover 15 that covers the first corner 21 of the magnetic circuit 14 is greater than the first radius of curvature of the first corner 21. Is also formed with a large curvature. For this reason, when the air enters and exits through the through-hole 18, the occurrence of turbulent air flow is suppressed at the second corner portion 22. As a result, noise generated in the through hole 18 of the loudspeaker 10 is reduced.
- FIG. 1 illustrates an example in which the first corner 21 of the magnetic circuit 14 and the second corner 22 of the cover 15 are provided on the back surface (second surface 45) of the magnetic circuit 14, that is, in the vicinity of the opening 20. ing.
- the second radius of curvature of the second corner 22 of the cover 15 may be formed with a larger curvature than the 21 radius of curvature of the first corner.
- the second corner portion 22 of the cover 15 may not completely cover the first corner portion 21 of the corresponding magnetic circuit 14.
- the cover 15 covers a part of the magnetic circuit 14 and the second corner of the cover 15 covering this part so that the first corner 21 of the magnetic circuit 14 having a substantially right-angled shape is not exposed. It is only necessary that the curved portion is provided in the portion 22. Alternatively, a part of the first corner 21 of the magnetic circuit 14 is covered by the second corner 22, and a curved portion is formed by the second corner 22 of the cover 15 and the first corner 21 of the magnetic circuit 14, The curvature of the curved portion formed by both may be formed larger than the curvature of the first corner portion 21 of the magnetic circuit.
- the cover 15 not only covers the first corner portion 21 of the magnetic circuit 14, but also protrudes to the back surface of the magnetic circuit 14 and extends in a hook shape in the cross-sectional shape to You may cover the back which is the opposite side.
- the cover 15 does not have a discontinuous portion that becomes uneven with respect to the air passing through the through hole 18. Therefore, the occurrence of air turbulence is further suppressed, and noise generated in the loudspeaker 10 is further reduced.
- the cover 15 is in contact with the wall surface of the through hole 18 of the magnetic circuit 14 and a plurality of surfaces on the opposite side of the diaphragm 12 in the magnetic circuit 14, that is, the back surface of the magnetic circuit 14 and the other surfaces of the magnetic circuit 14. May be formed. With this configuration, the cover 15 absorbs mechanical vibration of the magnetic circuit 14, so that the noise of the loudspeaker 10 is further reduced.
- the cover 15 covering the wall surface of the through hole 18 of the magnetic circuit 14 mainly absorbs mechanical vibrations in the direction facing the through hole 18 of the magnetic circuit 14, that is, in the horizontal direction in the drawing.
- a cover 15 covering the back surface of the magnetic circuit 14 mainly absorbs mechanical vibrations in the axial direction of the magnetic circuit 14, that is, in the vertical direction in the figure. As a result, noise generated in the loudspeaker 10 is further reduced.
- the cover 15 includes a cylindrical portion 15A that covers the through hole 18 and a flange portion 15B that covers at least a part of the back surface of the magnetic circuit 14.
- a portion formed on the inner periphery of the through hole 18 is a cylindrical portion 15A
- a portion formed in the opening 20 is a flange portion 15B.
- the diameter D2 (outer diameter) of the flange portion 15B is larger than the diameter D1 (inner diameter) of the through hole 18.
- the cover 15 has a cylindrical portion 15 ⁇ / b> A formed at a location facing the through hole 18 of the magnetic circuit 14 and a flange portion 15 ⁇ / b> B formed at a location corresponding to the first corner portion 21. .
- the diameter D2 of the flange portion 15B is larger than the diameter D1 of the through hole 18 and the diameter D3 of the cylindrical portion 15A.
- the cover 15 is continuously in contact with the wall surface of the through hole 18 and the back surface of the magnetic circuit 14. Thereby, the cover 15 absorbs mechanical vibration of the magnetic circuit 14.
- the internal loss of the cover 15 is preferably larger than the internal loss of the magnetic circuit 14 so that the mechanical vibration is efficiently absorbed by the cover 15.
- the cover 15 since the cover 15 does not require a large mechanical strength, it is preferable to set a material such as resin or metal after preferentially determining the characteristics relating to the internal loss.
- the cover 15 may be a single structure or a structure formed by stacking a plurality of resins in layers.
- the cover 15 may have the second corner portion 22 having the second curvature radius on both the front surface and the back surface of the magnetic circuit 14.
- the cover 15 may include a second corner portion 22 having a second radius of curvature and a third corner portion 25 having a third radius of curvature smaller than the second radius of curvature.
- the second corner 22 of the second curvature radius of the cover 15 is formed across the back surface of the magnetic circuit 14 and the portion facing the through hole 18.
- a third corner 25 of the third radius of curvature of the cover 15 is formed across the front surface of the magnetic circuit 14 and the portion facing the through hole 18.
- the third corner 25 covers a part of the corner of the corresponding magnetic circuit.
- the through hole 18 By making the second curvature radius of the second corner portion 22 provided on the back surface of the magnetic circuit 14 larger than the third curvature radius of the third corner portion 25 provided on the front surface of the magnetic circuit 14, the through hole 18. The flow of air passing through is stabilized. As a result, noise generated in the loudspeaker 10 is reduced.
- the loss that occurs in the fluid when passing through the through hole 18 from the back surface of the through hole 18 is suppressed rather than the loss that occurs in the fluid (air) when passing through the through hole 18 from the front surface of the through hole 18. .
- the change in the air flow path area is small, but when air passes through the through-hole 18 from the back surface of the through-hole 18, the air flow The change of road area becomes large. For this reason, the loss that occurs in the air, which is a fluid, on the back surface of the through hole 18 increases.
- this configuration by increasing the second radius of curvature of the second corner 22 than the third radius of curvature of the third corner 25, this increased loss is suppressed. Therefore, noise generated in the loudspeaker 10 is reduced.
- the linear expansion coefficient of the cover 15 is preferably larger than the linear expansion coefficient of the magnetic circuit 14.
- the temperature of the loudspeaker 10 is approximately equal to the environmental temperature. Temperature does not rise.
- the dimensions of the cover 15 and the through hole 18 may be determined so that the cover 15 has a low degree of adhesion that can be easily inserted into the through hole 18 of the magnetic circuit 14. That is, when the current is not supplied to the loudspeaker 10 and the loudspeaker 10 is not operating, the ability of the cover 15 to absorb vibration generated in the magnetic circuit 14 may not be set high. Further, the cover 15 is inserted into the through hole 18 of the magnetic circuit 14, and the diameter D3 of the through space 18A where the cover 15 is formed is slightly smaller than the diameter D1 of the through hole 18 of the magnetic circuit 14. .
- the temperature of the loudspeaker 10 becomes higher than the environmental temperature as the temperature of the voice coil body 13 increases. And the temperature of the cover 15 and the magnetic circuit 14 also rises. Even when the degree of adhesion between the cover 15 and the magnetic circuit 14 is low at normal temperature, the linear expansion coefficient of the cover 15 arranged annularly on the inner peripheral side of the through hole 18 is annular on the outer peripheral side of the through hole 18. Since it is larger than the linear expansion coefficient of the arranged magnetic circuit 14, the cover 15 expands more outward than the magnetic circuit 14.
- the cover 15 and the magnetic circuit 14 are more efficiently absorbed by the cover 15 by improving the adhesion between the cover 15 and the magnetic circuit 14. .
- noise generated in the loudspeaker 10 is easily reduced.
- the cover 15 and the magnetic circuit 14 can be easily assembled to the loudspeaker 10. Further, when the loudspeaker 10 is operating, the cover 15 and the magnetic circuit 14 are combined in a state of being in close contact with each other. That is, the cover 15 efficiently absorbs mechanical vibration of the magnetic circuit 14.
- the cover 15 may be coupled not only to the part in contact with the magnetic circuit 14 but also to other parts and components in the loudspeaker 10.
- the cover 15 may be coupled to the frame 11 on the back surface of the magnetic circuit 14.
- the frame 11 that holds the diaphragm 12 may be made of metal or resin having a large internal loss.
- the frame 11 may cover the diaphragm 12, the damper 24, and the outer peripheral surface of the magnetic circuit 14, and further hold them. Thereby, mechanical vibration of the magnetic circuit 14 is efficiently absorbed by the cover 15 and the metal or resin frame 11. As a result, noise generated in the loudspeaker 10 is easily reduced.
- FIG. 2 is a schematic cross-sectional view showing the configuration of the loudspeaker 100 in the present embodiment.
- the loudspeaker 100 has a second through hole 26. That is, when the frame 11 is coupled to the cover 15 on the back surface of the magnetic circuit 14, the second through hole 26 may be formed at the back end portion of the frame 11.
- a frame ring portion 27 corresponding to the bottom surface of the frame 11 forming the second through hole 26 may be disposed between the flange portion 15 ⁇ / b> B and the magnetic circuit 14. Thereby, the flange portion 15 ⁇ / b> B can cover the magnetic circuit 14 or the frame 11. As a result, the occurrence of air turbulence in the through hole 18 is suppressed, and noise generated in the loudspeaker 10 is reduced.
- the frame 11 may be composed of a first frame 11A and a second frame 11B.
- an annular first frame 11 ⁇ / b> A may be provided around the diaphragm edge 23 so as to hold the diaphragm 12 via the diaphragm edge 23.
- the first frame 11A may be coupled to the second frame 11B where the first frame 11A does not hold the diaphragm edge 23.
- the cover 15 may be coupled to the second frame 11B.
- the internal loss of the second frame 11B is preferably larger than the internal loss of the first frame 11A. Therefore, the first frame 11A is preferably made of metal, and the second frame 11B is preferably made of resin or a metal having an internal loss larger than that of the first frame 11A.
- the first frame 11A which is less likely to be distorted, is used on the outer periphery of the diaphragm edge 23 that is susceptible to stress from the diaphragm 12, the vibration of the diaphragm 12 for reproducing sound is also less distorted. . Further, the first frame 11A, which is not easily distorted in shape but is easy to transmit vibration from the diaphragm 12, is held by the second frame 11B. For this reason, vibration generated in the first frame 11A is absorbed by the second frame 11B. As a result, noise generated in the loudspeaker 10 is easily reduced.
- the second frame 11B covers the outer periphery of the damper 24, the magnetic circuit 14, and the like and further holds them, so that mechanical strength is required. For this reason, it is preferable that the elastic modulus of the second frame 11 ⁇ / b> B is larger than the elastic modulus of the cover 15.
- the internal loss of the second frame 11B is preferably larger than the internal loss of the magnetic circuit 14 so that mechanical vibrations are efficiently absorbed by the second frame 11B.
- the turbulent flow caused by the entry and exit of air is suppressed by the through hole, and noise generated in the through hole is further reduced.
- the loudspeaker of the present disclosure has an effect that noise associated with air turbulence is reduced, and is useful in various electronic devices.
Abstract
Description
図1は、本実施の形態におけるラウドスピーカ10の構成を示す断面模式図である。
2 ダストキャップ
3 振動板
4 金属フレーム
5 コイルボビン
6 ボイスコイル
7 磁気回路
8 貫通孔
9 端部
10 ラウドスピーカ
11 フレーム
11A 第1フレーム
11B 第2フレーム
12 振動板
13 ボイスコイル体
14 磁気回路
15 カバー
15A 筒状部
15B フランジ部
16 第1端部
17 第2端部
18 貫通孔
18A 貫通空間
19 磁気ギャップ
20 開口部
21 第1角部
22 第2角部
23 振動板エッジ
24 ダンパー
25 第3角部
26 第2貫通孔
27 フレーム円環部
30 ボイスコイル体
32 ダストキャップ
41 内部空間
43 第1面
45 第2面
51 コイルボビン
53 ボイスコイル
100 ラウドスピーカ
D1 直径
D2 直径
D3 直径
Claims (11)
- 内部空間を有するフレームと、
前記フレームの前記内部空間に配置された振動板と、
前記振動板に面する第1面と、
前記第1面の反対側の第2面と、
前記第1面に形成された磁気ギャップと、
前記第1面と前記第2面との間を貫通する貫通孔と、
前記第1面と前記第2面の少なくとも一方と、前記貫通孔に面する箇所とにまたがって形成された、第1曲率半径を有する第1角部と、
を有する磁気回路と、
前記振動板に結合された第1端部と、
前記磁気ギャップ内に配置された、前記第1端部の反対側の第2端部と、
を有するボイスコイル体と、
前記第1曲率半径よりも大きな第2曲率半径を有する第2角部を有し、前記第1角部の少なくとも一部を覆うように形成されたカバーと、
を備えた
ラウドスピーカ。 - 前記カバーの内部損失は、前記磁気回路の内部損失よりも大きい、
請求項1に記載のラウドスピーカ。 - 前記カバーは樹脂により形成されており、前記カバーの線膨張係数は、前記磁気回路の線膨張係数よりも大きい、
請求項1に記載のラウドスピーカ。 - 前記振動板は、振動板エッジを有し、
前記フレームは、
前記振動板エッジを介して前記振動板を保持する第1フレームと、
前記第1フレームおよび前記カバーと結合する第2フレームと、
を有する
請求項1に記載のラウドスピーカ。 - 前記第2フレームの弾性率は、前記カバーの弾性率よりも大きい
請求項4に記載のラウドスピーカ。 - 前記第2フレームの内部損失は、前記第1フレームの内部損失よりも大きい
請求項4に記載のラウドスピーカ。 - 前記第2フレームの内部損失は、前記磁気回路の内部損失よりも大きい
請求項4に記載のラウドスピーカ。 - 前記第1角部は、前記第2面と、前記貫通孔に面する前記箇所とにまたがって形成されており、
前記カバーは、前記磁気回路の前記第1面と、前記貫通孔に面する前記箇所とにまたがって、前記第2の曲率半径よりも小さな第3の曲率半径を有する第3角部を、さらに有する
請求項1に記載のラウドスピーカ。 - 前記フレームの一部は、前記磁気回路の前記第2面に接し、前記フレームに第2貫通孔が形成されている
請求項1に記載のラウドスピーカ。 - 前記第1角部は、前記第2面と、前記貫通孔に面する前記箇所とにまたがって形成されており、
前記カバーは、前記磁気回路の前記第2面において、前記フレームと結合している
請求項1に記載のラウドスピーカ。 - 前記カバーは、円筒状に形成されており、前記磁気回路の、前記貫通孔に面した箇所に形成された筒状部と、前記第1角部に対応する箇所に形成されたフランジ部とを有し、前記フランジ部の直径は、前記貫通孔の直径よりも大きい
請求項1に記載のラウドスピーカ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580022354.9A CN106465019A (zh) | 2014-10-03 | 2015-09-14 | 扬声器 |
US15/301,449 US20170180868A1 (en) | 2014-10-03 | 2015-09-14 | Loudspeaker |
EP15845771.3A EP3119110A4 (en) | 2014-10-03 | 2015-09-14 | Loudspeaker |
JP2016551503A JPWO2016051696A1 (ja) | 2014-10-03 | 2015-09-14 | ラウドスピーカ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-204401 | 2014-10-03 | ||
JP2014204401 | 2014-10-03 |
Publications (1)
Publication Number | Publication Date |
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WO2016051696A1 true WO2016051696A1 (ja) | 2016-04-07 |
Family
ID=55629773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/004666 WO2016051696A1 (ja) | 2014-10-03 | 2015-09-14 | ラウドスピーカ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170180868A1 (ja) |
EP (1) | EP3119110A4 (ja) |
JP (1) | JPWO2016051696A1 (ja) |
CN (1) | CN106465019A (ja) |
WO (1) | WO2016051696A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105828263A (zh) * | 2016-05-17 | 2016-08-03 | 歌尔丹拿音响有限公司 | 扬声器 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021164045A (ja) | 2020-03-31 | 2021-10-11 | パナソニックIpマネジメント株式会社 | スピーカ用振動板、スピーカ、スピーカ用振動板の製造方法、電子機器および、移動体装置 |
CN113498007A (zh) * | 2020-04-01 | 2021-10-12 | 大原祐子 | 具有抗噪层的喇叭振动片及其制造方法 |
CN112203195B (zh) * | 2020-09-16 | 2021-09-28 | 湖南航天磁电有限责任公司 | 一种扬声器磁路系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH062896U (ja) * | 1992-06-12 | 1994-01-14 | オンキヨー株式会社 | スピーカ用磁気回路 |
JPH08140188A (ja) * | 1994-11-10 | 1996-05-31 | Victor Co Of Japan Ltd | 電気音響変換器 |
JP2007074378A (ja) * | 2005-09-07 | 2007-03-22 | Pioneer Electronic Corp | スピーカー装置用磁気回路及びスピーカー装置 |
WO2010023759A1 (ja) * | 2008-08-29 | 2010-03-04 | パイオニア株式会社 | スピーカ装置 |
WO2013114872A1 (ja) * | 2012-01-30 | 2013-08-08 | パナソニック株式会社 | スピーカ、スピーカを備えたインナーイヤーヘッドホンおよび補聴器 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3248711B2 (ja) * | 1996-09-17 | 2002-01-21 | パイオニア株式会社 | スピーカ装置 |
US5739480A (en) * | 1996-09-24 | 1998-04-14 | Lin; Steff | Speaker base for alternatively mounting different drivers |
CN101106838A (zh) * | 2001-02-13 | 2008-01-16 | 松下电器产业株式会社 | 磁性流体的保持方法和利用该方法的扬声器 |
JP4604415B2 (ja) * | 2001-07-19 | 2011-01-05 | パナソニック株式会社 | スピーカ |
US6639993B2 (en) * | 2001-12-29 | 2003-10-28 | Alpine Electronics, Inc | Loudspeaker with low distortion and high output power |
US6626262B1 (en) * | 2002-08-06 | 2003-09-30 | Ting-Pang Chen | Waterproof speaker |
US20040105568A1 (en) * | 2002-12-03 | 2004-06-03 | Po-Hsiung Lee | Speaker with enhanced magnetic flux |
US20040184623A1 (en) * | 2003-03-07 | 2004-09-23 | Leif Johannsen | Speaker unit with active leak compensation |
JP2006060443A (ja) * | 2004-08-19 | 2006-03-02 | Pioneer Electronic Corp | スピーカ装置及びスピーカ装置の放熱部材 |
KR100791494B1 (ko) * | 2004-12-14 | 2008-01-03 | 마쯔시다덴기산교 가부시키가이샤 | 스피커 |
JP2006261962A (ja) * | 2005-03-16 | 2006-09-28 | Pioneer Electronic Corp | スピーカ装置 |
JP2006325105A (ja) * | 2005-05-20 | 2006-11-30 | Pioneer Electronic Corp | スピーカ装置 |
JP4718927B2 (ja) * | 2005-07-29 | 2011-07-06 | パイオニア株式会社 | スピーカ装置 |
JP4671236B2 (ja) * | 2006-05-29 | 2011-04-13 | パイオニア株式会社 | スピーカ |
US7831059B1 (en) * | 2006-11-03 | 2010-11-09 | Sahyoun Joseph Y | Self-cooled electro-magnetic audio transducer |
JP5014883B2 (ja) * | 2007-06-06 | 2012-08-29 | ミネベア株式会社 | スピーカ |
JPWO2010050056A1 (ja) * | 2008-10-31 | 2012-03-29 | パイオニア株式会社 | スピーカ用連結部材及びスピーカ |
US20110158462A1 (en) * | 2009-07-09 | 2011-06-30 | Pioneer Corporation | Speaker device |
US20130108099A1 (en) * | 2011-10-31 | 2013-05-02 | Jason Kemmerer | Loudspeaker having improved cooling system integrally formed on speaker frame |
TWM449421U (zh) * | 2012-11-13 | 2013-03-21 | Firstchair Acoustics Co Ltd | 喇叭結構 |
US20160088413A1 (en) * | 2014-09-19 | 2016-03-24 | Merry Electronics (Suzhou) Co., Ltd. | Center positioning jig and speaker assembling method using the same |
-
2015
- 2015-09-14 JP JP2016551503A patent/JPWO2016051696A1/ja active Pending
- 2015-09-14 CN CN201580022354.9A patent/CN106465019A/zh active Pending
- 2015-09-14 US US15/301,449 patent/US20170180868A1/en not_active Abandoned
- 2015-09-14 WO PCT/JP2015/004666 patent/WO2016051696A1/ja active Application Filing
- 2015-09-14 EP EP15845771.3A patent/EP3119110A4/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH062896U (ja) * | 1992-06-12 | 1994-01-14 | オンキヨー株式会社 | スピーカ用磁気回路 |
JPH08140188A (ja) * | 1994-11-10 | 1996-05-31 | Victor Co Of Japan Ltd | 電気音響変換器 |
JP2007074378A (ja) * | 2005-09-07 | 2007-03-22 | Pioneer Electronic Corp | スピーカー装置用磁気回路及びスピーカー装置 |
WO2010023759A1 (ja) * | 2008-08-29 | 2010-03-04 | パイオニア株式会社 | スピーカ装置 |
WO2013114872A1 (ja) * | 2012-01-30 | 2013-08-08 | パナソニック株式会社 | スピーカ、スピーカを備えたインナーイヤーヘッドホンおよび補聴器 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3119110A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105828263A (zh) * | 2016-05-17 | 2016-08-03 | 歌尔丹拿音响有限公司 | 扬声器 |
Also Published As
Publication number | Publication date |
---|---|
EP3119110A4 (en) | 2017-04-05 |
CN106465019A (zh) | 2017-02-22 |
US20170180868A1 (en) | 2017-06-22 |
JPWO2016051696A1 (ja) | 2017-07-13 |
EP3119110A1 (en) | 2017-01-18 |
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