WO2001026414A1 - Unite de haut-parleur - Google Patents

Unite de haut-parleur Download PDF

Info

Publication number
WO2001026414A1
WO2001026414A1 PCT/JP2000/006917 JP0006917W WO0126414A1 WO 2001026414 A1 WO2001026414 A1 WO 2001026414A1 JP 0006917 W JP0006917 W JP 0006917W WO 0126414 A1 WO0126414 A1 WO 0126414A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
voice coil
light
diaphragm
emitting means
Prior art date
Application number
PCT/JP2000/006917
Other languages
English (en)
Japanese (ja)
Inventor
Hideki Minami
Hachishiro Kobayashi
Toshio Hirosawa
Hiroshi Koizumi
Original Assignee
Sony Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corporation filed Critical Sony Corporation
Priority to CA002353595A priority Critical patent/CA2353595A1/fr
Priority to EP00964658A priority patent/EP1137317A1/fr
Priority to HU0104783A priority patent/HUP0104783A3/hu
Priority to KR1020017006965A priority patent/KR20010080678A/ko
Priority to BR0007193-5A priority patent/BR0007193A/pt
Publication of WO2001026414A1 publication Critical patent/WO2001026414A1/fr

Links

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H04R5/023—Spatial or constructional arrangements of loudspeakers in a chair, pillow
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles

Definitions

  • the present invention relates to a speaker device, and more particularly to a speaker device that generates sound by vibrating a diaphragm according to an electric signal.
  • BACKGROUND ART Loudspeaking power is widely used as a conversion means for converting electric signals into sound.
  • a dynamic speaker is provided with a voice coil wound around a bobbin in a gap of a magnetic circuit constituting a driving means, and transmits an axial vibration received by the voice coil to a diaphragm. Vibration corresponding to the signal is generated by the diaphragm, and sound is generated according to the electric signal.
  • a speaker device provided with a lamp or the like as illumination has also been proposed, but in such a speaker device, the driving circuit for the lamp or the like is independent of the driving circuit for the speed, and requires an external power supply. I have. In addition, such a lamp does not always change in luminance according to the strength of an electric signal for driving a loudspeaker. Disclosure of the invention SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned situation of the conventional speed-power device. The purpose of the present invention is to provide a speeding device that is adapted to generate the force.
  • a speaker device is a speaker device that generates a sound by vibrating a diaphragm according to an electric signal, and includes a light emitting unit whose brightness changes according to the strength of the electric signal.
  • the light emitting means may be arranged in front of the driving means of the diaphragm.
  • a light guide plate may be provided in front of the light emitting means, and light may be guided forward through a transparent portion of the light guide plate.
  • a center cap of the loudspeaker may be formed by the light guide plate, and the light from the light emitting means may be guided inside the center cap to the outer peripheral side to illuminate the diaphragm.
  • the driving means of the diaphragm may be constituted by a voice coil, and the pole piece inside the voice coil may constitute a reflector of the light emitting means.
  • the light emitting means may be arranged such that the light emitting means is cooled by an air flow generated by the vibration of the diaphragm.
  • the light emitting means may be connected in series with the voice coil constituting the driving means of the diaphragm.
  • a speaker device includes a voice coil including a plurality of coils, and a protection element connected to each of the coils. Further, a speaker device according to the present invention includes a voice coil including two coils, a lamp connected to one coil, and a breaker connected to the other coil.
  • the speaker device includes a plurality of coils.
  • a voice coil a lamp connected in series to a first coil of the plurality of coils, and functioning as a protection circuit, and a lamp connected between the second coil of the plurality of coils and the lamp, A switching switch for switching between a state in which the current flowing through the second coil passes through the lamp and a state in which the current does not pass through the lamp.
  • FIG. 1 is a side view of the inside of a station wagon showing the attachment of the speeding device.
  • FIG. 2 is a perspective view of a main part showing attachment of the speaker box.
  • Figure 3 is a side view of the interior of the freight car showing the installation of the speed box.
  • Fig. 4 is a side view of the inside of the minivan showing the mounting of the speaker box.
  • FIG. 5 is a longitudinal sectional view showing the structure of the speaker device.
  • FIG. 6 is an external perspective view of the center cap.
  • FIG. 7 is a rear view of the center cap.
  • FIG. 8 is a circuit diagram showing the connection between the voice coil and the lamp.
  • FIG. 9 is a circuit diagram showing the connection between the voice coil and the lamp according to the second embodiment.
  • FIG. 10 is a circuit diagram showing the connection between the voice coil and the lamp of the third embodiment. It is a road map.
  • FIG. 11 is a circuit diagram showing a connection between a voice coil and a lamp according to a modification.
  • BEST MODE FOR CARRYING OUT THE INVENTION a speaker device according to the present invention will be described with reference to the drawings.
  • a lamp is connected in series to a voice coil of a loudspeaker, and this lamp emits light while changing luminance according to a driving current of a loudspeaker force.
  • the lamp may be arranged on the pole piece of the magnetic circuit of the loudspeaker, and may be used to guide light forward with the front side of the pole piece as a reflecting surface.
  • the center cap of the loudspeaker is molded from a resin through which light passes, and the light is guided forward through the transparent portion of the center cap, and the center cap is used as a light guide plate to guide the light to the outer periphery thereof.
  • the speaker cone may be illuminated.
  • the air inside the center cap may be exchanged with the outside due to the vibration of the loudspeaker, so that the lamp arranged on the pole piece may be cooled.
  • the loudspeaker device not only sound is generated but also light is generated, and the brightness of the loudspeaker device changes according to the driving current of the radiating power. That is, no special circuit for changing the brightness of the lamp is required.
  • the speaker device is a voice speaker of a loudspeaker.
  • a coil is composed of multiple coils, for example, two coils, and each coil is connected to a protection circuit with different characteristics. This prevents the sound from being interrupted even when an excessive electric signal is applied. In other words, it is difficult to understand the distortion of the sound even when the input is excessively large, and it is possible to notify that the input is excessive due to the change in the sound volume / the light quantity of the lamp.
  • the speaker device is configured such that a voice coil of a loudspeaker is composed of a plurality of, for example, two coils, and a lamp is connected to one voice coil and a breaker is connected to the other coil. I do.
  • the breaker When the breaker is activated, the amount of light emitted from the lamp increases, indicating that the protection has been activated and that an excessive input has occurred.
  • the impedance of the lamp increases as the lamp shines, that is, the lamp functions as a lamp fuse, and an excessive input to the radiating power is prevented.
  • FIGS. 1 and 2 show a case where the present invention is applied to a low-frequency speaker device mounted on an automobile.
  • the speaker device to which the present invention is applied is composed of a speaker box 10 and a large-diameter radiating force 11 housed in the speaker box 10.
  • the speaker box 10 is mounted on the rear side of the rear seat 14 of the station wagon via a mounting bracket 15 as shown in FIG. 2, for example.
  • the speaker box 10 must be installed in such a position.
  • the present invention is not limited to this, and may be mounted at an appropriate position in a car.
  • the present invention may be mounted at an appropriate position in a car.
  • the radiating force 11 includes a frame 20, and a plate 21 having an opening at the center is fixed to the base end side of the frame 20.
  • a ring-shaped magnet 22 made of a permanent magnet is arranged on the back side of the plate 21, a ring-shaped magnet 22 made of a permanent magnet is arranged on the back side of the plate 21, a yoke 23 is fixed to the back side of the magnet 22.
  • a pole piece 24 is connected to the yoke 23 so as to protrude from the center thereof.
  • a bobbin 28 is arranged in an air gap between the outer peripheral surface of the pole piece 24 and the inner peripheral surface of the opening of the plate 21.
  • a voice coil 29 is wound on the bobbin 28.
  • the bobbin 28 is connected to the diaphragm 30, and a concentric zigzag is formed between the portion of the bobbin 28 on the center side of the diaphragm 30 and the portion of the bobbin 28 of the frame 20. Is connected.
  • a current of 11 flows through the voice coil 29 disposed in the air gap of the magnetic circuit composed of the magnet 22, the jokes 23, the pole pieces 24, and the plate 21.
  • the bobbin 28 on which the voice coil 29 is wound receives a force in the axial direction thereof, and the bobbin 28 receives the force in the axial direction, that is, the left and right in FIG. Will move in that direction.
  • This movement is transmitted to diaphragm 30 connected to bobbin 28, whereby diaphragm 30 vibrates according to an electric signal to generate sound.
  • the speaker device to which the present invention is applied has a center cap 34 on the front side of the diaphragm 30.
  • the center cap 34 is made of a transparent synthetic resin, and a light-shielding paint is applied to the back surface thereof so as to block light.
  • the light-shielding paint is not applied to the entire rear surface of the center cap 34, but is applied to a predetermined area 40 as shown in FIGS. 6 and 7, for example.
  • a transparent portion 40 on which no is applied is formed, and this transparent portion 40 guides light forward, that is, light is transmitted through the transparent portion 40.
  • a through hole 35 is provided at the center of the pole piece 24 disposed at the center of the loudspeaker 11, and a lamp 36 is accommodated in the through hole 35. Therefore, when the lamp 36 emits light, the light passes through the transparent portion 40 of the center cap 34 forward. Further, the center cap 34 itself functions as a light guide means, that is, a light guide path, and light is guided through the inside thereof so that the diaphragm 30 shines.
  • the pole piece 24 has a surface facing the center cap 34 serving as a reflector, and reflects light emitted from the lamp 36 in the opposite direction to the center cap 34 toward the center cap. Further, the lamp 36 is cooled by the air flow generated by the vibration of the diaphragm 3 °.
  • the center cap 34 The transparent portion 40 may be formed as a through hole to form a ventilation hole, and the air inside the center cap 24 may be replaced.
  • FIG. 8 is a diagram showing a connection relationship between the lamp 36 and the voice coil 29.
  • the voice coil 29 and the lamp 36 are connected in series with each other, and both ends are connected to the signal source 43. You.
  • the lamp 36 is composed of a lamp whose luminance changes according to the flowing current. As the amount of current increases, the luminance of the lamp 36 increases. Therefore, the brightness of the lamp 36 changes according to the strength of the electric signal, and this change in brightness can be confirmed from the front through the transparent portion 40 of the center cap 34. That is, the speaker device emits light whose luminance changes with sound in accordance with the electric signal.
  • the voice coil 29 includes a first voice coil 29a and a second voice coil 29b.
  • the impedance of the first voice coil 29a is larger than that of the second voice coil 29b.
  • a breaker 42 is connected in series to the voice coil 29a, a lamp 36 is connected in series to the voice coil 29b, and the voice coil 29a and the voice coil 29b are connected to a signal source. 4 Connected in parallel to 3.
  • the two voice coils 29a and 29b are driven together.
  • the lamp 36 connected to the second voice coil 29 b emits light, thereby increasing the impedance of the lamp 36. . That is, the lamp 36 functions as a lamp fuse, and the impedance of the circuit in which the second voice coil 29 b and the lamp 36 are connected in series increases. As a result, the current flowing through the second voice coil 36 decreases, and the current flowing through the first voice coil 29a increases, that is, the current flows through the first voice coil 29a and the second voice coil 29b. The flowing current is balanced.
  • the breaker 42 connected to the first voice coil 29a is activated, and the circuit on the voice coil 29a side is cut off. .
  • a larger current flows through the second voice coil 29 b and the amount of light emitted from the lamp 36 increases, and as a result, the impedance of the lamp 36 further increases, causing an excessive input. Will respond.
  • the user can be notified that the protection circuit including the breaker 42 has been activated.
  • the sound is not interrupted because the second voice coil 29 b is driven even when the protection is activated by breaking the breaker 42.
  • a protection circuit such as the breaker 42
  • the impedance of a circuit composed of a plurality of lamps connected in series can be arbitrarily set. Value Can be.
  • the voice coil 29 is composed of a pair of voice coils 29a and 29b, and the lamp 36 is connected in series to one voice coil 29a.
  • the breakers 42a and 42b are connected to both ends of the lamp 36, respectively, and the other ends of the breakers 42a and 42b are connected to the A and B contacts of the switch 46, respectively. are doing.
  • the fixed contact C of the switching switch 46 is connected to one end of the other voice coil 29b.
  • the speeding device shown in FIG. 11 is a device in which the number of lamps 36 is two in the speeding device shown in FIG. 10, and these lamps 36a and 36b are connected in series. The rest of the configuration is the same as that of the spinning device shown in FIG. Therefore, according to lamps 36a and 36b Therefore, the impedance of the entire speaker device can be further increased.
  • INDUSTRIAL APPLICABILITY The speaker device according to the present invention is a speaker device that generates a sound by vibrating a diaphragm according to an electric signal, and includes a light emitting unit whose brightness changes according to the strength of the electric signal. Things. Therefore, this speed device not only generates sound, but also generates light. Furthermore, the brightness changes according to the strength of the electric signal.
  • the voice coil is composed of two coils, a lamp is connected to one coil, and a breaker is connected to the other coil. Therefore, in this speaker device, the lamp as the light emitting means functions as a protection circuit. Also, even if an excessive drive current is input and the breaker is cut off, the voice coil connected to the lamp is driven, so that the sound is not interrupted.
  • a speaker device includes: a voice coil including a plurality of coils; a lamp connected in series to the first coil, functioning as a protection circuit; a lamp connected between the lamp and the second coil; And a switching switch for switching between a state in which the current flowing through the coil passes through the lamp and a state in which the current does not pass through the lamp. Therefore, in this speaker device, the voice coil can be protected by the lamp, and the brightness of the lamp can be adjusted according to the switching of the switching switch.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

Une unité de haut-parleur comprend un élément polaire comportant au centre un trou traversant. Une lampe est prévue à l'extrémité avant du trou traversant et un capuchon central en plastique transparent est prévu à l'avant de la lampe. La lampe est connectée en série à la bobine mobile. L'unité de haut-parleur émet de la lumière dont la luminosité varie en même temps que le courant d'excitation du haut-parleur alors que ce dernier produit du son.
PCT/JP2000/006917 1999-10-06 2000-10-04 Unite de haut-parleur WO2001026414A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002353595A CA2353595A1 (fr) 1999-10-06 2000-10-04 Unite de haut-parleur
EP00964658A EP1137317A1 (fr) 1999-10-06 2000-10-04 Unite de haut-parleur
HU0104783A HUP0104783A3 (en) 1999-10-06 2000-10-04 Speaker unit
KR1020017006965A KR20010080678A (ko) 1999-10-06 2000-10-04 스피커 장치
BR0007193-5A BR0007193A (pt) 1999-10-06 2000-10-04 Dispositivo de alto-falante

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28600499A JP4240177B2 (ja) 1999-10-06 1999-10-06 スピーカ装置
JP11/286004 1999-10-06

Publications (1)

Publication Number Publication Date
WO2001026414A1 true WO2001026414A1 (fr) 2001-04-12

Family

ID=17698770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/006917 WO2001026414A1 (fr) 1999-10-06 2000-10-04 Unite de haut-parleur

Country Status (8)

Country Link
EP (1) EP1137317A1 (fr)
JP (1) JP4240177B2 (fr)
KR (1) KR20010080678A (fr)
CN (1) CN1327703A (fr)
BR (1) BR0007193A (fr)
CA (1) CA2353595A1 (fr)
HU (1) HUP0104783A3 (fr)
WO (1) WO2001026414A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3865244B2 (ja) * 2002-03-15 2007-01-10 松下電器産業株式会社 スピーカシステム
EP1345469A1 (fr) 2002-03-15 2003-09-17 Matsushita Electric Industrial Co., Ltd. Système de haut-parleur
JP3873990B2 (ja) * 2004-06-11 2007-01-31 セイコーエプソン株式会社 超音波トランスデューサ及びこれを用いた超音波スピーカ
JP5020682B2 (ja) * 2007-03-30 2012-09-05 ミネベア株式会社 スピーカ
KR101113080B1 (ko) * 2010-05-14 2012-02-16 유연성 스피커를 이용한 진동신호 발생 장치 및 그 제어장치
KR102022285B1 (ko) 2013-01-04 2019-09-18 삼성전자주식회사 스피커

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844717Y2 (ja) * 1979-04-18 1983-10-11 三菱電機株式会社 スピ−カ保護回路
JPS61119488U (fr) * 1985-01-08 1986-07-28
JPH028282U (fr) * 1988-06-28 1990-01-19

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844717Y2 (ja) * 1979-04-18 1983-10-11 三菱電機株式会社 スピ−カ保護回路
JPS61119488U (fr) * 1985-01-08 1986-07-28
JPH028282U (fr) * 1988-06-28 1990-01-19

Also Published As

Publication number Publication date
HUP0104783A2 (hu) 2002-03-28
EP1137317A1 (fr) 2001-09-26
JP2001112076A (ja) 2001-04-20
JP4240177B2 (ja) 2009-03-18
KR20010080678A (ko) 2001-08-22
CA2353595A1 (fr) 2001-04-12
BR0007193A (pt) 2001-09-04
CN1327703A (zh) 2001-12-19
HUP0104783A3 (en) 2002-04-29

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