WO2022196130A1 - スピーカー装置 - Google Patents
スピーカー装置 Download PDFInfo
- Publication number
- WO2022196130A1 WO2022196130A1 PCT/JP2022/003395 JP2022003395W WO2022196130A1 WO 2022196130 A1 WO2022196130 A1 WO 2022196130A1 JP 2022003395 W JP2022003395 W JP 2022003395W WO 2022196130 A1 WO2022196130 A1 WO 2022196130A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diaphragm
- magnetic circuit
- support member
- speaker
- speaker unit
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 description 5
- 239000000470 constituent Substances 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
-
- 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
- H04R9/06—Loudspeakers
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2873—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself for loudspeaker transducers
-
- 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
- H04R9/022—Cooling arrangements
-
- 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
- H04R9/063—Loudspeakers using a plurality of acoustic drivers
Definitions
- the present invention relates to a speaker device, and more particularly to a speaker device in which a second speaker unit is arranged in front of a first speaker unit.
- the present invention is based on the findings of the inventor's earnest experiments and research to address the above-mentioned problems, and aims to provide a coaxial speaker device that can achieve weight reduction with a simple configuration. .
- one aspect of the present invention provides a speaker device comprising: a first speaker unit having a first magnetic circuit and a first diaphragm; a second speaker unit disposed and having a second magnetic circuit and a second diaphragm, the second speaker unit fixed to the first magnetic circuit and facing the second magnetic circuit inwardly; and a substantially cylindrical support member that supports the second diaphragm by connecting the entire circumference of the outer peripheral portion of the second diaphragm to the end face.
- FIG. 1 is a perspective view showing the appearance of a speaker device according to this embodiment.
- FIG. 2 is a cross-sectional view showing the speaker device according to this embodiment.
- FIG. 3 is a perspective view showing a support member in this embodiment. 4 is a cross-sectional view of the support member taken along line AA shown in FIG. 3.
- FIG. 1 is a perspective view showing the appearance of a speaker device according to this embodiment.
- FIG. 2 is a cross-sectional view showing the speaker device according to this embodiment.
- FIG. 1 is a perspective view showing the appearance of a speaker device according to this embodiment.
- FIG. 2 is a cross-sectional view showing the speaker device according to this embodiment.
- FIG. 1 is a perspective view showing the appearance of the speaker device according to this embodiment.
- FIG. 2 is a cross-sectional view showing the speaker device according to this embodiment.
- the speaker device 100 is a speaker in which two speaker units are arranged side by side in the front-rear direction (the Z-axis direction in the drawings). and have.
- the first speaker unit 101 is a speaker that is larger than the second speaker unit 102 unit and is designed to radiate low-frequency sound, and includes a first diaphragm 112, a first voice coil body 113, It has a base member 114 , a first magnetic circuit 118 , a clamping member 160 and a first damper 151 .
- the first diaphragm 112 is a film-like member that vibrates due to the reciprocating motion of the first voice coil body 113 in the direction of the winding axis to generate sound.
- the shape (structure) of the first diaphragm 112 is not particularly limited, but in the case of the present embodiment, the first diaphragm 112 has a truncated cone shape (cone shape with the top portion cut off). .
- the outer peripheral portion of the first diaphragm 112 is provided with an annularly bulging edge.
- a through hole is provided in the center of the first diaphragm 112, and the first voice coil body 113 is pierced and attached by adhesion. The entire outer circumference of the first diaphragm 112 is attached to the base member 114 by adhesion.
- the first voice coil body 113 includes a first voice coil 131 that generates a magnetic field according to an input signal, and a cylindrical first bobbin 132 around which the first voice coil 131 is wound.
- a first diaphragm 112 is attached to the outer periphery of the distal end portion of the first bobbin 132 of the first voice coil body 113 , and the first voice coil 131 is arranged at the proximal end portion of the first bobbin 132 .
- the first voice coil 131 is inserted into the annular magnetic gap of the first magnetic circuit 118 .
- the base member 114 is a structural base member of the speaker device 100 .
- the shape of the base member 114 is not particularly limited, but in the case of the present embodiment, the base member 114 includes a container portion 141 that supports the first magnetic circuit 118 in an accommodated state, and the first diaphragm 112. It has an annular first annular portion 142 whose outer periphery is directly connected by adhesion, and a columnar connection portion 143 that connects the container portion 141 and the first annular portion 142 .
- a plurality of connection portions 143 are arranged side by side on a circumference around the winding axis of first voice coil body 113 .
- the material of the base member 114 is not particularly limited, in the case of the present embodiment, the base member 114 is made of resin, and the container portion 141, the first annular portion 142, and the connection portion 143 are made of , are integrally molded.
- the first magnetic circuit 118 is a circuit that generates a stationary magnetic field in the magnetic gap.
- the first magnetic circuit 118 may be of either an inner magnetic type or an outer magnetic type.
- a disc-shaped first magnet 116 housed in the first yoke 115 and an end surface of the first magnet 116 on the opposite side of the first yoke 115 and attached to the first yoke 115 to form a magnetic gap.
- a disk-shaped first top plate 117 is provided.
- the center of the first top plate 117 is provided with an insertion hole 119 into which a projecting portion 129 that is a part of a support member 124 (details will be described later) is inserted. is now possible.
- the sandwiching member 160 has a second annular portion 162 that sandwiches and holds the outer peripheral portion of the first diaphragm 112 over the entire circumference between it and the first annular portion 142 of the base member 114 .
- the clamping member 160 also includes a third annular portion 163 that clamps and holds the outer peripheral portion of the second diaphragm 122 over the entire circumference with the end face of the support member 124 described later.
- the second annular portion 162 is arranged concentrically outside the third annular portion 163, and the second annular portion 162 and the third annular portion 163 are connected by radially arranged rod-shaped bridge portions 161.
- the second annular portion 162 has a horn shape, and directivity of sound emitted from the second speaker unit 102 is adjusted.
- the first damper 151 is a member that connects the base member 114 and the first voice coil body 113 and supports the reciprocating motion of the first voice coil body 113 in the pipe axis direction.
- the first damper 151 is a thin ring-shaped member curved like a ripple, the inner periphery of which is attached to the intermediate portion of the first voice coil body 113 and the outer periphery of which is attached to the intermediate portion of the base member 114 . installed.
- the first speaker unit 101 may not include the first damper 151 in some cases.
- the second speaker unit 102 is a speaker that is arranged on the sound emitting side (the Z+ side in the drawing) of the first speaker unit 101 and that emits sound in the same direction as the first speaker unit 101 .
- the second speaker unit 102 is a speaker that is smaller than the first speaker unit 101 and is designed to radiate sound in a higher range than the first speaker unit 101 .
- the second speaker unit 102 also includes a second diaphragm 122 , a second voice coil body 123 , a support member 124 and a second magnetic circuit 128 .
- the second diaphragm 122 is a film-like member that vibrates due to the reciprocating motion of the second voice coil body 123 in the direction of the winding axis to generate sound.
- the shape (structure) of the second diaphragm 122 is not particularly limited, but in the case of the present embodiment, the second diaphragm 122 has a dome shape.
- the outer peripheral portion of the second diaphragm 122 is provided with an annularly bulging edge. The entire circumference of the outer peripheral portion of the second diaphragm 122 is attached to the end face of the support member 124 by adhesion.
- the second voice coil body 123 includes a second voice coil 134 that generates a magnetic field according to an input signal, and a cylindrical second bobbin 135 around which the second voice coil 134 is wound.
- a second diaphragm 122 is attached to the outer periphery of the distal end portion of the second bobbin 135 of the first voice coil body 113 , and the second voice coil 134 is arranged to the proximal end portion of the second bobbin 135 .
- the second voice coil 134 is inserted into the annular magnetic gap of the second magnetic circuit 128 .
- the winding axis of the second voice coil 134 of the second speaker unit 102 is arranged coaxially with respect to the winding axis of the first voice coil 131 of the first speaker unit 101.
- the unit 102 is arranged in front of the first diaphragm 112 of the first speaker unit 101 (Z+ side in the drawing) so as to radiate sound in the same direction as the first speaker unit 101 . That is, the speaker device 100 is a so-called coaxial speaker device.
- FIG. 3 is a perspective view showing a support member. 4 is a cross-sectional view of the support member taken along line AA shown in FIG. 3.
- FIG. The support member 124 is a cylindrical member whose bottom side is fixed to the first top plate 117 of the first magnetic circuit 118 .
- the support member 124 supports the second magnetic circuit 128 while accommodating it inside, and the entire circumference of the outer peripheral portion of the second diaphragm 122 is connected to the end face.
- the support member is arranged so that the second magnetic circuit 128 is arranged inside the cone-shaped first diaphragm 112 of the first speaker unit 101, that is, in the front-rear direction (the Z-axis direction in the figure). , the second magnetic circuit 128 is supported so that the second magnetic circuit 128 is located behind the edge of the first diaphragm 112 .
- the support member 124 has a cylindrical shape with a bottom, and has a cylindrical protrusion 129 protruding outward at the center of the bottom.
- the protruding portion 129 is inserted into the insertion hole 119 provided in the first top plate 117 of the first magnetic circuit 118 so that the position of the second speaker unit 102 with respect to the first speaker unit 101 can be aligned.
- a flange portion 136 projecting outward is provided at the tip of the support member 124 .
- the outer peripheral surface of the support member 124 is set so as to be parallel to the inner peripheral surface of the cylindrical first voice coil body 113 . That is, the space sandwiched between the support member 124 and the first voice coil body 113 extends from the opening corresponding to the tip of the first voice coil body 113 (Z+ side end in the drawing) to the bottom of the support member 124. They are set to have the same area. Thereby, resonance due to the space between the support member 124 and the first voice coil body 113 can be suppressed, and deterioration of the frequency characteristics of the speaker device 100 can be prevented.
- the support member 124 is provided with grooves 137 at a plurality of locations that are recessed inward from the outer peripheral surface and extend in the axial direction of the support member 124 . This makes it possible to reduce the weight of the support member 124 and effectively cool the heat generated from the first voice coil body 113 .
- the width of groove 137 is not particularly limited, but is preferably set to a width that can suppress resonance (Helmholtz resonance).
- the support member 124 has a projection 138 that protrudes inward from the inner peripheral surface on the back side of the groove 137 and extends in the axial direction of the support member 124. 137 is provided.
- the upper end faces (Z+ side end faces in the drawing) of the plurality of projections 138 are arranged on the same plane, and the second magnetic circuit 128 is supported by the support member 124 while being in contact with each upper end face.
- the second magnetic circuit 128 is a circuit that generates a stationary magnetic field in the magnetic gap.
- the second magnetic circuit 128 may be of either the inner magnetic type or the outer magnetic type.
- the type of the second magnetic circuit 128 and the type of the first magnetic circuit 118 may be different such that the second magnetic circuit 128 is of the outer magnetic type and the first magnetic circuit 118 is of the inner magnetic type.
- the function as a frame of the second speaker unit 102 and the member for arranging the second speaker unit 102 at a predetermined position with respect to the first speaker unit 101 Since the support member 124 integrally realizes the functions of the speaker device 100 and the function as a speaker device 100, it is possible to reduce the number of parts constituting the speaker device 100 and reduce the weight. Moreover, since the structure is simplified, the structural strength of the speaker device 100 can be improved, and the speaker device 100 that is resistant to vibrations and shocks can be realized.
- the sandwiching member 160 connects the base member 114 and the support member 124 in a bridge-like fashion on the front side (the Z+ side in the drawing) of the speaker device 100, and the support member 124 on the rear side of the speaker device 100 (the Z- side in the drawing). are fixed to the base member 114 via the first magnetic circuit 118 .
- This structure can further increase the structural strength of the speaker device 100 .
- the present invention is not limited to the above embodiments.
- another embodiment realized by arbitrarily combining the constituent elements described in this specification or omitting some of the constituent elements may be an embodiment of the present invention.
- the present invention also includes modifications obtained by making various modifications to the above-described embodiment within the scope of the gist of the present invention, that is, the meaning of the words described in the claims, which a person skilled in the art can think of. be
- the speaker device 100 may include a physical equalizer such as a resonator in front of the second diaphragm 122 of the second speaker unit 102.
- a physical equalizer such as a resonator in front of the second diaphragm 122 of the second speaker unit 102.
- the speaker device 100 may be provided with an independent cabinet, or may be attached to the housing of electronic devices such as televisions and computers, or to the structure of moving bodies such as cars and aircraft.
- the present invention can be applied to speaker devices that reproduce audio signals such as music.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
101 第一スピーカーユニット
102 第二スピーカーユニット
112 第一振動板
113 第一ボイスコイル体
114 基礎部材
115 第一ヨーク
116 第一マグネット
117 第一トッププレート
118 第一磁気回路
119 挿入孔
122 第二振動板
123 第二ボイスコイル体
124 支持部材
125 第二ヨーク
126 第二マグネット
127 第二トッププレート
128 第二磁気回路
129 突出部
131 第一ボイスコイル
132 第一ボビン
134 第二ボイスコイル
135 第二ボビン
136 フランジ部
137 溝部
138 突状部
141 容器部
142 第一環状部
143 接続部
151 第一ダンパー
160 挟持部材
161 架橋部
162 第二環状部
163 第三環状部
Claims (5)
- 第一磁気回路と、第一振動板と、を有する第一スピーカーユニットと、
前記第一スピーカーユニットの音の放射側に配置され、第二磁気回路と、第二振動板と、を有する第二スピーカーユニットと、を備え、
前記第二スピーカーユニットは、
前記第一磁気回路に固定され、前記第二磁気回路を内側にて支持し前記第二振動板の外周部の全周が端面に接続される略円筒形状の支持部材を備える
スピーカー装置。 - 前記第一スピーカーユニットは、第一ボイスコイル体を有し、
前記第二スピーカーユニットは、第二ボイスコイル体を有し、
前記支持部材、および前記第一ボイスコイル体の相互に対向する面は平行である
請求項1に記載のスピーカー装置。 - 前記支持部材は、
外周面から内側に向かって窪み前記支持部材の管軸方向に延在する溝部を備える
請求項1または2に記載のスピーカー装置。 - 前記支持部材は、
前記溝部の裏側の内周面から内側に向かって突出し前記支持部材の管軸方向に延在する突状部を備え、
前記第二磁気回路は、
前記突状部の端面に当接して前記支持部材に支持される
請求項3に記載のスピーカー装置。 - 前記第一磁気回路を支持し前記第一振動板が直接接続される基礎部材と、
前記基礎部材との間で前記第一振動板を挟み前記支持部材との間で第二振動板を挟む挟持部材と、
を備える請求項1から4のいずれか一項に記載のスピーカー装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112022001579.9T DE112022001579T5 (de) | 2021-03-19 | 2022-01-28 | Lautsprecher |
CN202280020857.2A CN117044230A (zh) | 2021-03-19 | 2022-01-28 | 扬声器装置 |
MX2023009702A MX2023009702A (es) | 2021-03-19 | 2022-01-28 | Dispositivo de altavoz. |
US18/367,092 US20230421948A1 (en) | 2021-03-19 | 2023-09-12 | Loudspeaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021046585A JP2022145259A (ja) | 2021-03-19 | 2021-03-19 | スピーカー装置 |
JP2021-046585 | 2021-03-19 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/367,092 Continuation US20230421948A1 (en) | 2021-03-19 | 2023-09-12 | Loudspeaker |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022196130A1 true WO2022196130A1 (ja) | 2022-09-22 |
Family
ID=83320323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/003395 WO2022196130A1 (ja) | 2021-03-19 | 2022-01-28 | スピーカー装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230421948A1 (ja) |
JP (1) | JP2022145259A (ja) |
CN (1) | CN117044230A (ja) |
DE (1) | DE112022001579T5 (ja) |
MX (1) | MX2023009702A (ja) |
WO (1) | WO2022196130A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0918993A (ja) * | 1995-06-30 | 1997-01-17 | Kenwood Corp | スピーカ構造 |
JP2008259243A (ja) * | 2008-06-16 | 2008-10-23 | Sony Corp | スピーカ装置 |
-
2021
- 2021-03-19 JP JP2021046585A patent/JP2022145259A/ja active Pending
-
2022
- 2022-01-28 MX MX2023009702A patent/MX2023009702A/es unknown
- 2022-01-28 CN CN202280020857.2A patent/CN117044230A/zh active Pending
- 2022-01-28 WO PCT/JP2022/003395 patent/WO2022196130A1/ja active Application Filing
- 2022-01-28 DE DE112022001579.9T patent/DE112022001579T5/de active Pending
-
2023
- 2023-09-12 US US18/367,092 patent/US20230421948A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0918993A (ja) * | 1995-06-30 | 1997-01-17 | Kenwood Corp | スピーカ構造 |
JP2008259243A (ja) * | 2008-06-16 | 2008-10-23 | Sony Corp | スピーカ装置 |
Also Published As
Publication number | Publication date |
---|---|
CN117044230A (zh) | 2023-11-10 |
US20230421948A1 (en) | 2023-12-28 |
DE112022001579T5 (de) | 2023-12-28 |
MX2023009702A (es) | 2023-08-29 |
JP2022145259A (ja) | 2022-10-03 |
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