WO2016031060A1 - スピーカ装置 - Google Patents
スピーカ装置 Download PDFInfo
- Publication number
- WO2016031060A1 WO2016031060A1 PCT/JP2014/072777 JP2014072777W WO2016031060A1 WO 2016031060 A1 WO2016031060 A1 WO 2016031060A1 JP 2014072777 W JP2014072777 W JP 2014072777W WO 2016031060 A1 WO2016031060 A1 WO 2016031060A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- case
- gap
- magnetic circuit
- outer peripheral
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims description 54
- 230000005855 radiation Effects 0.000 claims description 22
- 238000013459 approach Methods 0.000 claims description 3
- 238000009751 slip forming Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 17
- 239000004576 sand Substances 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- -1 polyethylene Polymers 0.000 description 4
- 239000006247 magnetic powder Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001601 polyetherimide Polymers 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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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
- H04R1/20—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
- H04R1/2892—Mountings or supports for transducers
- H04R1/2896—Mountings or supports for transducers for loudspeaker transducers
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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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Definitions
- the present invention relates to a speaker device.
- Patent Document 1 A speaker shown in Patent Document 1 has been proposed as a speaker device for preventing abnormal noise generated by iron powder or magnetic powder entering a magnetic gap.
- the speaker of Patent Document 1 is provided with a through-hole penetrating the magnetic circuit at the center of the bottom surface of the magnetic circuit of the speaker, and iron powder and magnetic powder enter the through-hole of the yoke through the central hole provided in the frame. To do. Thereby, the abnormal sound which iron powder and magnetic powder approach into a magnetic gap, and generate
- the present invention is an example of a problem to deal with such problems. That is, an object of the present invention is to provide, for example, a speaker device that suppresses dust from entering a magnetic gap.
- the invention described in claim 1 includes a magnetic circuit, a frame, and a case, and the frame includes a connecting portion to which the magnetic circuit is connected, and an outer side than the connecting portion.
- the case having a hole opening toward the case, the case opening toward the frame covers the magnetic circuit and the frame, and is located outside the hole and on the acoustic radiation side of the case.
- the speaker device is characterized in that a gap is formed between an edge portion and the frame. It is.
- a speaker device includes a magnetic circuit, a frame, and a case.
- the frame is connected to the magnetic circuit and connected to the case.
- a case opening toward the frame, the case opening toward the frame covers the magnetic circuit and the frame, the edge of the case on the acoustic radiation side outside the hole, and
- the speaker device is characterized in that a gap is formed between the frame and the frame.
- the intrusion path of dust (especially sand iron) into the magnetic gap advances from the gap on the sound radiation side toward the direction opposite to the sound radiation direction from the hole of the frame, and then the direction is changed. It becomes a path that proceeds toward the radial direction, passes through the hole of the frame, enters the frame, and reaches the magnetic gap.
- Sand dust needs to travel from the gap on the sound radiation side to the opposite side of the sound radiation direction from the hole of the frame, so it is difficult for sand dust to enter the frame, and the dust can be prevented from entering the magnetic gap. .
- dust (especially sand iron) that has entered through the gap sticks to the magnetic circuit connected to the frame by magnetic force, it is even less likely to enter the frame, and the dust can be prevented from entering the magnetic gap.
- a chair coil and a damper that supports the voice coil to the frame are provided, and the damper is attached to the inner surface of the outer peripheral portion of the frame, and a part of the outer peripheral portion of the frame that is on the magnetic circuit side from the damper is It may be a continuous surface.
- the hole may be formed at the bottom of the frame, and the gap may be formed between the outer periphery of the frame and the outer periphery of the case. Since the hole formed in the bottom of the frame opens toward the frame or magnetic circuit, if the dust does not advance from the gap on the acoustic radiation side toward the direction opposite to the sound radiation direction, Cannot enter the frame. Thereby, the penetration
- the outer surface of the outer peripheral portion of the frame may be provided with an inclined surface that approaches the case as it goes toward the acoustic radiation side, and the edge of the case may face the inclined surface of the frame. Accordingly, the gap on the opening side of the case can be narrowed to make it difficult for dust to enter, and the dust can be prevented from entering the case and the dust can be prevented from entering the magnetic gap.
- a second gap is formed between the outer periphery of the case and the magnetic circuit, and the first gap and the second gap are formed continuously from the edge of the case to the bottom. May be.
- the magnetic circuit is an outer magnetic type magnetic circuit having a yoke, a magnet, and a plate, and the outer peripheral portion of the magnet of the magnetic circuit may protrude from the outer peripheral portion of the yoke and the outer peripheral portion of the plate to the case side.
- the middle part of the second gap is narrow, the dust that has entered from the opening of the case and has passed through the middle part of the second gap to the bottom of the case is sucked toward the hole of the frame. It can be further suppressed.
- a part of the second gap on the bottom side of the case from the magnet may be formed wider than a part of the second gap at a position where the magnet is present.
- the middle part of the second gap is narrow, and a part of the second gap on the bottom side from the middle part can be formed wide, enters from the opening of the case, passes through the middle part of the second gap to the bottom of the case It can suppress further that the dust which penetrate
- it can be set as the accommodating part which accommodates the dust which penetrate
- the speaker device 1 includes a magnetic circuit 2 in which a magnetic gap G is formed, a frame 3 to which the magnetic circuit 2 is coupled, a voice coil 4 inserted in the magnetic gap G, and a voice coil. 4, a coil bobbin (voice coil support part) 5 that supports 4, a damper 6 that supports the coil bobbin 5 so as to vibrate, a diaphragm and a cap (both not shown), and a case 7 are provided.
- the magnetic circuit 2 in this embodiment is an external magnet type magnetic circuit, and includes a magnet 21, a plate 22 in which one pole of the magnet 21 is magnetically coupled, and a yoke in which the other pole of the magnet 21 is magnetically coupled. 23 and a mesh 24.
- the magnet 21 is provided in a disk shape, and a through hole 21a is provided in the center.
- the yoke 23 is formed with the magnet 21, a cylindrical yoke body 23a inserted into the through holes 21a and 22a of the plate 22, and a flange portion 23b projecting outward from the yoke body 23a. .
- a magnetic gap G is formed between the inner peripheral surface of the through hole 22a of the plate 22 and the yoke body 23a inserted into the through hole 22a. The magnetic gap G is opened on the sound radiation direction Y1 side and the opposite direction Y2 side.
- the flange portion 23b is erected from the end portion on the reverse direction Y2 side of the yoke body 23a toward the outside, and the flange portion 23b is erected from the outer end portion of the inner periphery portion 23b1 toward the sound radiation direction Y1,
- An inclined portion 23b2 that is separated from the yoke body 23a as it goes in the sound emission direction Y1, and is formed to protrude outward from an end portion on the sound emission direction Y1 side of the inclination portion 23b2 (that is, formed in parallel with the inner peripheral portion 23b1).
- the inner peripheral portion 23b1 is mounted on the bottom 71 of the case 7 described later, and the inclined portion 23b2 and the outer peripheral portion 23b3 are provided separately from the case 7 described later.
- On the outer peripheral portion 23b3, a surface on the reverse direction Y2 side ( other pole side) of the magnet 21 is overlapped and fixed with an adhesive or the like.
- the mesh 24 is attached to the end of the yoke body 23a on the sound emission direction Y1 side, and prevents dust from entering the frame 3.
- the outer diameter (or width) of the magnet 21 is formed larger than the outer diameter (or width) of the plate 22 and the outer diameter (or width) of the flange portion 23b of the yoke 23. For this reason, the magnet 21 protrudes from the plate 22 and the yoke 23 toward the case 7 described later.
- the frame 3 is made of a resin such as polyethylene, polypropylene, and ABS, and has a bottom portion 31 and an outer peripheral portion 32 erected from the edge of the bottom portion 31 toward the sound radiation direction Y1.
- the bottom 31 of the frame 3 is provided in a circular shape, and includes a through hole 31a formed at the center thereof, a plurality of connecting holes 31b surrounding the through hole 31a, and a plurality of holes 31c further formed outside the connecting hole 31b. And are provided.
- a yoke body 23a and a coil support portion 5 to be described later are inserted into the through hole 31a. For this reason, the opening of the magnetic gap G communicates with a through hole 31 a provided in the bottom 31 of the frame 3. Therefore, when dust enters the frame 3, the dust may enter the magnetic gap G through the through hole 31 a provided in the bottom 31.
- the connecting hole 31 b is a hole for connecting the magnetic circuit 2 to the frame 3, and a convex portion 22 b protruding from the plate 22 is inserted into the connecting hole 31 b.
- the magnetic circuit 2 is connected to the frame 3 by crushing the head of the convex portion 22b.
- a portion in contact with the plate 22 (magnetic circuit 2) at the bottom 31 of the frame 3 is a connecting portion.
- the plurality of holes 31 c are formed outside the connecting portion of the bottom 31 of the frame 3 and open toward the magnetic circuit 2. Air is sent into the magnetic circuit 2 from the plurality of holes 31c, and the magnetic circuit 2 is cooled.
- the outer peripheral portion 32 of the frame 3 includes a first inclined portion 32a, a damper mounting portion 32b, a second inclined portion 32c, and a diaphragm mounting portion 32d.
- the first inclined portion 32a is connected to the bottom portion 31 and is provided so that the outer diameter (or width) increases as it goes in the sound radiation direction Y1.
- the inclined surface 32a1 whose outer diameter (or width) becomes larger toward the sound radiation direction Y1 is provided on the outer surface of the first inclined portion 32a.
- the damper mounting portion 32b is formed to protrude outward from the end portion on the sound emission direction Y1 side of the first inclined portion 32a (that is, formed substantially parallel to the bottom portion 31), and the outer peripheral edge (edge end portion) of the damper 6 described later.
- the second inclined portion 32c is erected from the outer end portion of the damper mounting portion 32b toward the sound emission direction Y1, and is provided so that the outer diameter (or width) increases toward the sound emission direction Y1.
- the diaphragm mounting portion 32d is formed to protrude outward from the end of the second inclined portion 32c on the sound emission direction Y1 side (that is, formed substantially parallel to the bottom portion 31), and an outer peripheral edge of a diaphragm (not shown) (described later). Edge) is attached.
- a part of the outer peripheral portion 32 of the frame 3 (that is, the first inclined portion 32a) on the magnetic circuit 2 side of the damper 6 is a continuous surface in which no opening is provided.
- a part of the outer peripheral portion 32 of the frame 3 (that is, the second inclined portion 32c) on the side farther from the magnetic circuit 2 than the damper 6 is provided with a plurality of openings 32e for releasing back pressure of a diaphragm (not shown). It has been.
- the coil support portion 5 is provided in a cylindrical shape, and the coil 4 is wound around the outer surface thereof.
- the damper 6 is formed in a circular shape by an elastic member, and is formed in a bellows shape from the outside toward the center.
- a through hole 6a for inserting the voice coil 4 is provided at the center of the damper 6, and the coil support portion 5 is fixed to the inner surface of the through hole 6a of the damper 6 with an adhesive or the like.
- the outer peripheral edge (edge end portion) of the damper 6 is fixed to the inner side surface of the damper mounting portion 32b of the frame 3 with an adhesive or the like.
- a diaphragm (not shown) is made of paper, a resin such as polyetherimide, and is provided in a circular shape with a through hole formed in the center.
- the coil support portion 5 is fixed to the inner side surface of the through hole of the diaphragm with an adhesive or the like.
- the outer peripheral edge (edge portion) of the diaphragm is fixed to the inner side surface of the diaphragm mounting portion 32d of the frame 3 with an adhesive or the like.
- a cap (not shown) is fixed to the diaphragm so as to cover the coil support portion 5 protruding from a through hole provided in the center of the diaphragm (not shown). Accordingly, when a current is passed through the coil 4, the coil support 5 is vibrated by the magnetic force of the magnetic circuit 2, and a diaphragm (not shown) is vibrated to emit sound.
- the case 7 is made of a resin such as polyethylene, polypropylene, ABS, etc., covers the magnetic circuit 2 and the frame 3, and is opened toward the frame 3 side (sound radiation direction Y1 side).
- the case 7 has a bottom portion 71 and an outer peripheral portion 72 erected from the peripheral edge (edge end portion) of the bottom portion 71.
- the case 7 may cover a part or the whole of the magnetic circuit 2.
- the case 7 is arranged so that the case 7 faces the outer peripheral surface of the magnetic circuit 2 facing the outside, not facing the frame 3 as shown in FIG. Preferably covers a part of the magnetic circuit 2. Further, the case 7 may cover the entire frame 3 or a part of the frame 3 as shown in FIG.
- the bottom portion 71 is provided with the above-described magnetic circuit 2 and provided with a communication hole 71a that communicates with a hole of the cylindrical yoke body 23a.
- the outer peripheral portion 72 of the case 7 is erected from the plurality of holes 31c provided in the frame 3 to the acoustic radiation side. Moreover, the edge part 72c of this outer peripheral part 72 exists in the acoustic radiation
- a first gap S ⁇ b> 1 is formed between the outer peripheral portion 72 of the case 7 and the outer peripheral portion 32 of the frame 3. The first gap S1 communicates with the opening of the case 7.
- a second gap S2 is formed between the outer peripheral portion 72 of the case 7 and the magnetic circuit 2, and the first gap S1 and the second gap S2 are continuously formed from the opening of the case 7 to the bottom 71. Yes.
- the outer peripheral portion 72 of the case 7 includes a first inclined portion 72a and a second inclined portion 72b.
- the first inclined portion 72 a is continuous with the bottom portion 71 and is provided such that the outer diameter (or width) increases as the distance from the bottom portion 71 increases.
- the second inclined portion 72 b is connected to the first inclined portion 72 a and is provided at an inclination angle larger than the inclination angle between the first inclined portion 72 a and the bottom portion 71.
- the edge portion of the second inclined portion 72 b faces the inclined surface 32 a 1 of the outer peripheral portion 32 of the frame 3.
- the first gap S1 is narrowest on the opening side, which is a sand dust entrance, and becomes wider toward the reverse direction Y1.
- the magnet 21 is provided so as to protrude outward from the plate 22 and the yoke 23.
- the second gap S2 is narrow at the intermediate position (position between the outer peripheral portion 72 of the case 7 and the magnet 21), and is on the bottom 71 side (between the outer peripheral portion 72 of the case 7 and the flange portion 23b of the yoke 23). ) Is widened.
- the second gap S ⁇ b> 2 between the outer peripheral portion 32 of the frame 3 and the flange inclined portion 23 b ⁇ b> 2 increases as the bottom portion 71 is approached.
- a space between the frame 3 and the flange portion 23b of the yoke 23 serves as an accommodating portion 8 that accommodates dust that has entered through the opening of the case 7.
- the speaker device 1 configured as described above, it is necessary to provide the hole 31c in the bottom 31 of the frame 3 in order to cool the magnetic circuit 2.
- a case 7 covering the magnetic circuit 2 and the frame 3 is provided, and the edge 72c of the outer peripheral portion 72 of the case 7 is erected from the plurality of holes 31c to the sound radiation direction Y1 side.
- a first gap S1 is formed between the outer peripheral portion 72 and the outer peripheral portion 32 of the frame 3, and the first gap S1 and the opening of the case 7 communicate with each other.
- the dust advances toward the reverse direction Y2 and enters the first gap S1 from the opening of the case 7, and then changes direction to emit sound. It becomes a path
- the opening of the frame 3 is closed by a damper 6, a diaphragm (not shown), and a gap, and the outer peripheral portion 32 (that is, the first inclined portion 32a) of the frame 3 on the magnetic circuit 2 side from the damper 6 is provided with an opening. It is formed with a continuous surface that is not formed. Thereby, the entrance of the dust into the frame 3 on the magnetic circuit 2 side from the damper 6 can be limited to the hole 31c, and the penetration of the dust (especially sand iron) into the magnetic gap G can be further suppressed.
- the edge 72 c of the outer peripheral portion 72 of the case 7 faces the inclined surface 32 a 1 of the frame 3.
- the first gap S1 on the opening side of the case 7 which is a dust intrusion opening can be narrowed, and the intrusion of the sand dust into the case 7 can be suppressed, and the dust intrusion into the magnetic gap G can be further suppressed. Can be suppressed.
- the second gap S ⁇ b> 2 is formed between the outer peripheral portion 32 of the frame 3 and the magnetic circuit 2, and the first gap S ⁇ b> 1 and the second gap S ⁇ b> 2 are the bottom portion 71 of the case 7. It is formed continuously. Thereby, the dust that has entered the first gap S1 from the opening of the case 7 advances in the reverse direction Y2 as it is, enters the bottom portion 71 through the second gap S2, and is stored in the accommodating portion 8.
- the magnet 21 of the magnetic circuit 2 projects from the plate 22 and the yoke 23 toward the case 7 side. Accordingly, as described above, the second gap S2 is narrow at the intermediate portion and widely at the bottom portion 71 side. Thus, by providing the middle part of the second gap S2 narrowly, it entered from the opening of the case 7 and entered the bottom part 71 of the case 7 through the middle part of the second gap S2, and was stored in the storage part 8. It is possible to further suppress the dust from being sucked again toward the hole 31c of the frame 3 through the intermediate portion of the narrow second gap S2.
- the speaker device 1 in the second embodiment will be described with reference to FIGS. 2 and 3, parts that are the same as those of the speaker device 1 shown in FIG. 1 already described in the first embodiment are given the same reference numerals, and detailed descriptions thereof are omitted.
- the difference between the first embodiment and the second embodiment is the shape of the frame 3.
- the outer diameter (or width) of the plate 22 is made smaller than the outer diameter (or width) of the bottom 31 of the frame 3, and the hole 31 c is provided in the bottom 31.
- the outer diameter (or width) of the plate 22 is the same as or larger than the outer diameter (or width) of the bottom 31 of the frame 3 as shown in FIG.
- a plurality of recesses 31f are formed by denting the outer peripheral edge of the bottom 31 toward the acoustic radiation side or the damper 6 side, and a hole 31c is provided in the upper surface 31g of the recess 31f. .
- the hole 31c communicates with the outside through the opening of the recess 31f.
- a part of the periphery of the hole 31c is surrounded by a side surface that forms the recess 31f.
- the side surface forming the recess 31f becomes a wall, narrowing the dust intrusion path to the hole 31c, and further from the hole 31c to the frame. Intrusion of sand dust into 3 can be suppressed.
- the second gap S2 is also provided between the outer peripheral portion 72 of the case 7 and the magnetic circuit 2, but this is not restrictive. Depending on the degree of dust, only the first gap S1 between the outer peripheral portion 72 of the case 7 and the outer peripheral portion 32 of the frame 3 may be provided.
- the inclined surface 32a1 is provided on the outer peripheral portion 32 of the frame 3, and the end portion on the opening side of the outer peripheral portion 72 of the case 7 is opposed to the inclined surface 32a1. This is not the only one. It is not essential to provide the inclined surface 32 a 1 on the outer peripheral portion 32 of the frame 3, and a surface perpendicular to the bottom portion 31 may be used.
- the magnet 21 is protruded from the yoke 23 and the plate 22 toward the case 7 so that the second gap S2 is narrow at the middle portion and wide at the bottom 71 side.
- the intermediate portion of the outer peripheral portion 72 of the case 7 may be inwardly provided so that the second gap S2 is narrow at the intermediate portion and wide at the bottom 71 side.
- the second gap S2 is narrow at the intermediate position and wide at the bottom 71 side, but is not limited thereto.
- the second gap S2 may be provided with the same dimension up to the bottom 71.
- the magnetic circuit 2 is an external magnetic type magnetic circuit, but is not limited thereto. It may be an internal magnet type magnetic circuit.
- the internal magnetic circuit When the internal magnetic circuit is employed, the outer periphery of the yoke protrudes from the magnet and the plate toward the case so that the intermediate portion of the second gap 2S is narrow and the second gap 2S on the bottom 71 side is one side. The part can be widened.
- An example of mounting the speaker device 1 is that it is arranged in the trunk room of a vehicle.
- the speaker device 1 is arranged, for example, such that the sound emission direction Y1 faces the vehicle ceiling or an occupant such as a driver.
- the magnet 21 and the plate 22 can be formed concentrically. You may make the inclination-angle of the 2nd inclination part 72b with respect to the bottom part 71 substantially perpendicular
- the shape of the hole 31c may be an arbitrary shape such as a perfect circle, an ellipse, a track shape, a rectangle such as a square or a rectangle.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
である。
次に、第1実施例におけるスピーカ装置について図1を参照して説明する。
次に、第2実施例におけるスピーカ装置1について図2及び図3を参照して説明する。図2及び図3においては、第1実施例で既に説明した図1に示すスピーカ装置1と同等の部分には同一符号を付してその詳細な説明を省略する。第1実施例と第2実施例とで異なる点は、フレーム3の形状である。第1実施例では、プレート22の外径(又は幅)をフレーム3の底部31の外径(又は幅)よりも小さくし、底部31に孔部31cを設けていた。
2 磁気回路
3 フレーム
6 ダンパ
7 ケース
21 磁石
22 プレート
23 ヨーク
31 底部
31c 孔部
32 外周部
32a1 傾斜面
71 底部
72 外周部
S1 第1間隙
S2 第2間隙
Y1 音放射方向
Claims (7)
- 磁気回路と、フレームと、ケースを備え、
前記フレームは、前記磁気回路が連結される連結部と、当該連結部よりも外側にあり、前記ケースに向かって開口する孔部を有し、
前記フレームに向かって開口したケースは、前記磁気回路及び前記フレームを覆い、
前記孔部よりも外側で音響放射側にある前記ケースの縁端部と、前記フレームとの間に間隙が形成されていることを特徴とするスピーカ装置。 - ボイスコイルと、当該ボイスコイルを前記フレームに支持するダンパを備え、
前記ダンパは、前記フレームの外周部の内側面に取り付けられており、
前記ダンパより前記磁気回路側にある、前記フレームの外周部の一部は連続面であることを特徴とする請求項1に記載のスピーカ装置。 - 前記孔部は、前記フレームの底部に形成され、
前記間隙は、前記フレームの外周部と前記ケースの外周部との間に形成されていることを特徴とする請求項2に記載のスピーカ装置。 - 前記フレームの外周部の外側面は、前記音響放射側に向かうに従って前記ケースに近づく傾斜面を備え、
前記ケースの縁端部は、前記フレームの傾斜面に対向していることを特徴とする請求項3に記載のスピーカ装置。 - 前記間隙を第1間隙として、
前記ケースの外周部と前記磁気回路との間に第2間隙が形成され、
前記第1間隙及び前記第2間隙は、前記ケースの縁端部から底部まで連続して形成されていることを特徴とする請求項4に記載のスピーカ装置。 - 前記磁気回路は、ヨーク、磁石、プレートを有する外磁型磁気回路であり、
前記磁気回路の磁石の外周部は、前記ヨークの外周部及び前記プレートの外周部より前記ケース側に突出していることを特徴とする請求項5に記載のスピーカ装置。 - 前記磁石がある位置における前記第2間隙の一部より、前記磁石より前記ケースの底部側にある前記第2間隙の一部が広く形成されていることを特徴とする請求項7に記載のスピーカ装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US15/507,253 US10362404B2 (en) | 2014-08-29 | 2014-08-29 | Speaker apparatus |
JP2016545203A JP6240335B2 (ja) | 2014-08-29 | 2014-08-29 | スピーカ装置 |
PCT/JP2014/072777 WO2016031060A1 (ja) | 2014-08-29 | 2014-08-29 | スピーカ装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/072777 WO2016031060A1 (ja) | 2014-08-29 | 2014-08-29 | スピーカ装置 |
Publications (1)
Publication Number | Publication Date |
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WO2016031060A1 true WO2016031060A1 (ja) | 2016-03-03 |
Family
ID=55398995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/072777 WO2016031060A1 (ja) | 2014-08-29 | 2014-08-29 | スピーカ装置 |
Country Status (3)
Country | Link |
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US (1) | US10362404B2 (ja) |
JP (1) | JP6240335B2 (ja) |
WO (1) | WO2016031060A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020161950A (ja) * | 2019-03-26 | 2020-10-01 | パナソニックIpマネジメント株式会社 | スピーカ装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6554519B2 (ja) * | 2017-11-01 | 2019-07-31 | パイオニア株式会社 | スピーカ装置 |
CN110139197A (zh) * | 2018-02-02 | 2019-08-16 | 海能达通信股份有限公司 | 扬声器组件及电子设备 |
WO2021000156A1 (zh) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | 发声器件 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS49146927U (ja) * | 1973-04-16 | 1974-12-18 | ||
JPS54135926U (ja) * | 1978-03-14 | 1979-09-20 | ||
JPS61195183U (ja) * | 1985-04-19 | 1986-12-05 | ||
JP2009536481A (ja) * | 2006-05-08 | 2009-10-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | ドーム型スピーカー |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54135929A (en) | 1978-04-14 | 1979-10-22 | Nissan Motor Co Ltd | Exhaust gas recirculation control apparatus |
JPS61195183A (ja) | 1985-02-22 | 1986-08-29 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | 研磨粉固定型ポリウレタン研磨材料 |
US5970158A (en) * | 1997-07-30 | 1999-10-19 | Federal Signal Corporation | Compact horn speaker |
JP4075728B2 (ja) | 2003-08-07 | 2008-04-16 | 松下電器産業株式会社 | スピ−カ |
KR101177322B1 (ko) * | 2012-01-27 | 2012-08-30 | 영보엔지니어링 주식회사 | 크로스오버 이중 스피커 |
-
2014
- 2014-08-29 WO PCT/JP2014/072777 patent/WO2016031060A1/ja active Application Filing
- 2014-08-29 US US15/507,253 patent/US10362404B2/en active Active
- 2014-08-29 JP JP2016545203A patent/JP6240335B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49146927U (ja) * | 1973-04-16 | 1974-12-18 | ||
JPS54135926U (ja) * | 1978-03-14 | 1979-09-20 | ||
JPS61195183U (ja) * | 1985-04-19 | 1986-12-05 | ||
JP2009536481A (ja) * | 2006-05-08 | 2009-10-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | ドーム型スピーカー |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020161950A (ja) * | 2019-03-26 | 2020-10-01 | パナソニックIpマネジメント株式会社 | スピーカ装置 |
JP7281666B2 (ja) | 2019-03-26 | 2023-05-26 | パナソニックIpマネジメント株式会社 | スピーカ装置 |
Also Published As
Publication number | Publication date |
---|---|
JP6240335B2 (ja) | 2017-11-29 |
US10362404B2 (en) | 2019-07-23 |
US20170289696A1 (en) | 2017-10-05 |
JPWO2016031060A1 (ja) | 2017-06-01 |
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