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
• • 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
  • H04R3/00—Circuits for transducers, loudspeakers or microphones
  • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
  • H04R3/14—Cross-over networks
• • 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
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
  • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
  • H04R2499/10—General applications
  • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
  • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
  • H04R9/02—Details
  • H04R9/04—Construction, mounting, or centering of coil
  • H04R9/045—Mounting

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.
• Landscape technology Loudspeakers are widely used as conversion means for converting electrical 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. The vibration corresponding to the signal is generated by the diaphragm, and the sound corresponding to the electric signal is generated.
• a plurality of loudspeakers are combined, for example, a loud speaker for low sound and a loudspeaker for high sound.
• the speaker device is constructed from the dope force. Therefore, the output from the amplifier is supplied to each of the loudspeakers through a dividing network composed of a plurality of filters, and the reproduction band is divided by the dividing network.
• a dividing network is a combination of filters such as a single-pass filter, a band-pass finoleta, and a high-pass filter, and is constituted by a combination of an inductance coil and a capacitor.
• the coil of such a filter that is, the network coil, is attached to a predetermined position of the speaker device as a separate component from the loudspeaker.
• the loud speaker 1 is attached so as to cover the opening of the baffle plate 3 on the front side of the speaker box 2, the terminal plate 5 is attached to the rear cover 4, and the inside of the terminal plate 5
• the network coil 6 is attached to the main body.
• the network coil is composed of a single independent component, a filter is formed by a combination of the coil and the capacitor, and a band of the electric signal supplied to the corresponding loud speech force is formed. Is divided.
• the conventional network coil is an air-core coil, and is attached to the terminal plate 5 of the speaker box 2 as shown in FIG. 1, for example.
• the present invention has been made in view of such a problem, and an object of the present invention is to take a network coil by winding it around a loudspeaker. An object of the present invention is to provide a speeding device adapted to be attached.
• the speaker device is a speaker device that generates sound by vibrating a diaphragm according to an electric signal, wherein a network coil is wound around a driving unit that vibrates the diaphragm. .
• the driving unit may include a magnetic circuit and a voice coil disposed in an air gap of the magnetic circuit, and a network coil may be wound around an outer periphery of the magnetic circuit.
• a cover may be attached so as to cover the magnetic circuit, a groove may be formed in a circumferential direction on an outer peripheral surface of the cover, and a network coil may be wound in the groove.
• the magnetic circuit may constitute the core of the network coil.
• a network coil may be wound around the plate of the magnetic circuit.
• the cover may be made of a magnetic material, and a network coil may be wound around the outer peripheral surface of the cover. It is also possible that the cover is made of synthetic resin, a ring of magnetic material is attached to the cover, and a network coil is wound around the outside of the ring.
• a network coil is wound around and attached to a driving unit that vibrates the diaphragm, and a filter is formed by the network coil, and a band of a signal supplied to a radiant power is provided.
• FIG. 1 is a vertical cross-sectional view of a speed box showing attachment of a conventional network coil.
• FIG. 1 shows the interior of the station wagon showing the installation of the loud-speaking force.
• FIG. 3 is a perspective view of a main part showing attachment of the speed force box.
• Figure 4 is a side view of the interior of the freight car showing the installation of the speaker bottas.
• Figure 5 is a side view of the inside of the minivan showing the attachment of the speed box.
• FIG. 6 is a longitudinal sectional view showing the structure of the loudspeaker.
• FIG. 7 is a block diagram of a circuit showing a connection in a network system
• FIG. 8 is a block diagram of a circuit showing a connection in another network system.
• FIG. 9 is a block diagram of a circuit showing still another network system connection.
• FIG. 10 is a circuit diagram of the filter.
• FIG. 11 is a circuit diagram of another filter.
• FIG. 12 is a longitudinal sectional view of a main part of the drive unit of the second embodiment.
• FIG. 13 is a longitudinal sectional view of a main part of a driving section according to the third embodiment.
• BEST MODE FOR CARRYING OUT THE INVENTION a speaker device according to the present invention will be described with reference to the drawings.
• a network coil is wound around a force bar attached so as to cover the circumference of a magnetic circuit having a loudness force.
• a groove is formed on the outer peripheral surface of the cover in the circumferential direction, and a net coil is wound around the groove. It should be noted that this embodiment is based on This is for the sake of simplicity, and the present invention is not limited to this embodiment.
• the network coil can be selectively adjusted to the air-core coil and the core coil. Also, a groove is formed in the cover so as to be located outside the plate of the magnetic circuit, a coil is wound around this groove, and the inductance of the coil is adjusted by adjusting the gap between the plate and the cover. It can be adjusted.
• a network coil is wound directly around the outer peripheral surface of the cover of the magnetic material, and the cover covers the core. It may be configured. Alternatively, it is also possible to adjust the inductance of the coil by molding the cover with a synthetic resin and embedding or attaching a ring of a magnetic material such as a ferrite inside the position where the network coil is wound. is there.
• the speed and the network coil can be reduced. Can be combined into one, so that it is not necessary to assemble the network coil as a separate part, and mounting means and space for mounting the network coil are not required.
• FIG. 2 is a side view of the inside of the station wagon when the speed force device to which the present invention is applied is mounted on a station wagon, and FIG. is there.
• the speaker device of this embodiment is a speaker device for a vehicle mounted on an automobile, and includes a speaker box 10 and a speaker box 10 as shown in FIG. It consists of housed large-diameter loudspeakers 11.
• the speaker box 1 for example, as shown in FIG. 3, Note c adapted to be mounted via a mounting bracket 1 5 on the rear side of Ryashito 1 4 stations Nwagon, speaker box 1 0 mounting
• the position is not necessarily limited to such a position, and may be attached to an appropriate position in a car.
• it may be mounted on the floor panel 16 on the rear side of the freight truck's ribs 14.
• it may be attached below the lya seat 14 of the minivan.
• the radiating force 11 includes a frame 20 and a plate 21 having an opening at a center portion is fixed to a 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.
• 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 plate 21.
• a voice coil 29 is wound on the bobbin 28.
• the bobbin 28 is connected to the diaphragm 30, and has a concentric jig between the bobbin 28 on the center side of the diaphragm 30 and the bobbin 28 on the frame 20.
• a dambar 31 having a zag is connected.
• the loud-speech force 11 winds a network coil 52 around a driving unit 25 that drives the diaphragm 30.
• the network coil 52 is wound around the driving unit 25.
• a cover 50 is attached, a groove 51 is formed in a circumferential direction on an outer peripheral surface of the cover 50, and a network coil 52 is wound in the groove 51.
• a network coil 52 constitutes a filter together with a capacitor 53, and selects a band for a plurality of light-speed forces 11 and 36. Has become.
• a support bracket 35 is fixed to the tip of the pole piece 24 of the loudspeaker 11 with screws 34, and a tip for the high-frequency sound is attached to the tip of the support bracket 35.
• Dospe force 36 is attached.
• the structure of the radiant power 36 for the treble is substantially the same as the radiant power 11, and is a structure slightly smaller than the radiant power 11. That is, the high-frequency loudspeaker 36 has a frame 37 and a diaphragm 38 disposed inside the frame 37, and the diaphragm 38 is driven by a drive unit 39 composed of a magnetic circuit. Things.
• Such a loudspeaker 11 generates a current when a current flows through a voice coil 29 disposed in an air gap of a magnetic circuit including a magnet 22, a yoke 23, a pole piece 24 and a plate 21. Accordingly, the bobbin 28 on which the voice coil 29 is wound receives a force in the axial direction, and the bobbin 28 moves in the axial direction, that is, in the left and right direction in FIG. Become. This movement is linked with bobbin 28. The vibration is transmitted to the connected vibration plate 30, whereby the vibration plate 30 vibrates according to an electric signal to generate a sound. By the same operation, when the driving section 39 of the high-sound radiating power 36 vibrates the diaphragm 38, the loudspeaker 36 generates sound.
• the dividing network of the speaker device including the pair of loudspeakers 11 and 36 is composed of an open-pass filter 44, a high-pass filter 45, and a force.
• the output of the amplifier 43 is passed through these filters 44, 45. that c
• Rau Dosupi force 1 1, 3 6, by the low-pass filter 4 4 signals of lower frequency is supplied to the Lau de speaker 1 1, the high-pass filter 4 5, the high-frequency C is supplied to the high-frequency loudspeaker force 36.
• the loudspeakers 11 and 36 are mounted separately from each other in the above-described configuration.
• the loudspeaker for treble 36 is arranged at a different position from the loudspeaker for low frequency 11.
• the dividing network is composed of only the high-pass filter 45. That is, the output of the amplifier 43 is directly supplied to the low-frequency loudspeaker 11.
• the bass loudspeaker 11 mainly reproduces bass sounds by its own band characteristics.
• the high-frequency loudspeaker 36 mainly shares the reproduction on the high frequency side by the signal supplied through the high-pass filter 45.
• FIG. 3 is a diagram showing a physical circuit configuration, in which a high-pass filter 45 is composed of a network coil 52 and a capacitor 53.
• the network coil 52 constituting the high-pass filter 45 is wound in the groove 51 formed on the outer peripheral surface of the cover 50 having the loudness force 11. Therefore, the terminal of the network coil 52 is connected to the terminal of the capacitor 53 and the terminal of the radiated power 36.
• FIG. 11 is a diagram showing another circuit configuration of a dividing network.
• the network coil 52 whose impedance increases as the frequency increases increases the low-pass sound speed. 1 and a capacitor 53 whose impedance increases as the frequency becomes lower is connected in series to the radiating power 36 for the treble. Therefore, the circuit composed of the network coil 52 and the capacitor 53 substantially separates the band, and as a result, bass reproduction is mainly performed by the bass sound power 11 for bass.
• the high-pitched loudspeaker 36 mainly reproduces high-pitched sounds.
• FIG. 12 is a diagram showing a configuration of another embodiment of the vehicle-use road speed force 11. In this embodiment, as shown in FIG.
• the plate 21 of the magnetic circuit extends outward so as to contact the inner peripheral surface of the force cover 50, so that the plate 21 5 Construct 2 cores. Further, the position where the network coil 52 is wound substantially corresponds to the position where the plate 21 and the cover 50 are in contact with each other.
• the cover 50 is made of a magnetic material such as iron to provide a magnetically shielded loudspeaker and a network coil 52 on the outer peripheral surface of the magnetically shielded loudspeaker. Wrap.
• FIG. 13 is a diagram showing a configuration of another embodiment of the vehicle-mounted road speed force 11.
• the cover 50 is made of, for example, a synthetic resin such as ABS resin, and a ring 5 made of ferrite is provided inside the cover 50 at a position where the network coil 52 is wound. 6 is fixed. Therefore, the ring 56 of the ferrite forms the core of the network coil 52. Then, the inductance of the network coil is adjusted by the ring 56 of the ferrite.
• a speaker device according to the present invention is a speaker device that generates sound by vibrating a diaphragm in response to an electric signal, wherein a network coil is wound around a driving unit that vibrates the diaphragm. It was done.
• a network coil is wound around the driving unit, and the loudness and the network coil can be integrated.
• the number of assembly parts can be substantially reduced. That is, there is no need for a mounting member for mounting the network coil or a space for the mounting member. Also, since it is not necessary to attach the network coil as a separate component, the number of assembling steps can be reduced.

Landscapes

• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Acoustics & Sound (AREA)
• Signal Processing (AREA)
• Health & Medical Sciences (AREA)
• Otolaryngology (AREA)
• General Health & Medical Sciences (AREA)
• Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
• Details Of Audible-Bandwidth Transducers (AREA)
• Circuit For Audible Band Transducer (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=17788082

Family Applications (1)

Country Status (9)

Families Citing this family (5)

Citations (2)

Family Cites Families (5)

• 1999
  • 1999-10-14 JP JP29291799A patent/JP2001119788A/ja active Pending
• 2000
  • 2000-10-06 BR BR0007184-6A patent/BR0007184A/pt not_active IP Right Cessation
  • 2000-10-06 HU HU0104781A patent/HUP0104781A3/hu unknown
  • 2000-10-06 WO PCT/JP2000/007002 patent/WO2001028279A1/ja not_active Ceased
  • 2000-10-06 KR KR1020017007336A patent/KR100761591B1/ko not_active Expired - Fee Related
  • 2000-10-06 CA CA002355216A patent/CA2355216A1/en not_active Abandoned
  • 2000-10-06 EP EP00964734A patent/EP1143764A4/en not_active Withdrawn
  • 2000-10-06 CN CNB008022445A patent/CN1157991C/zh not_active Expired - Fee Related
  • 2000-10-06 US US09/857,954 patent/US6801635B1/en not_active Expired - Fee Related

Patent Citations (2)

Non-Patent Citations (1)

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