CN2798477Y

CN2798477Y - Concurrent coaxical loudspeaker

Info

Publication number: CN2798477Y
Application number: CN 200420089900
Authority: CN
Inventors: 闫文革
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-24
Filing date: 2004-08-24
Publication date: 2006-07-19
Anticipated expiration: 2014-08-24

Abstract

The utility model relates to a broadband loudspeaker, in which high volume and low volume can sound at one point and be spread with a coaxial line. The utility model is composed of a basin frame, a concentrating flux plate, a magnetic steel and a T-shaped iron which are successively connected with each other, wherein a one end of a horn-shaped low volume vibrating diaphragm is connected with the basin frame, and the other end is connected with a low volume voice coil and an elastic wave to form a woofer; a stem of the T-shaped iron is provided with a high volume hanging body, a high volume voice coil and a high volume vibrating diaphragm, and a leading wire of the high volume voice coil is led out from a hole of the T-shaped iron to form a tweeter. The high volume voice coil is scarf-jointed to the inner part of the low volume voice coil by a concentric circle manner and is simultaneously hung in a magnetic gap formed by the concentrating flux plate and the stem of the T-shaped iron. The frequency bandwidth is from the lower frequency limit of the woofer to the upper frequency limit of the tweeter, and the low volume sound wave and the high volume sound wave are in the same axle center in the sound radiation direction. The sound initiation point of the woofer and the sound initiation point are coincident by adjusting the thickness of the high volume hanging body, so the tweeter and the woofer form the connection of the concurrent coaxial relationship.

Description

The concurrent coaxial loudspeaker

Affiliated technical field

The new shape of this practicality relates to a kind of broadband concurrent coaxial loudspeaker, the especially loud speaker of broadband point sound source playback.

Technical background

Present known loud speaker, form by magnetic circuit system, vibrational system, support system, because its vibrational system can only be operated in single frequency band, so frequency bandwidth relative narrower, for finishing audio playback, known loud speaker will lump together and could use with high pitch, a plurality of set of speakers of bass, because these loud speakers can not be operated on the sounding point, when the playback point sound-source signal, can not be reduced into point sound source sound, make music produce distortion.

Summary of the invention

For overcoming the deficiency that existing loud speaker can not broadband point sound source playback sound, the utility model provides a kind of concurrent coaxial loudspeaker, this loud speaker is by the organic assembling of two vibrational systems of high bass, can not only the widening frequency band width frequently, and can be some sounding synchronous transmission playback point source sound characteristic, and overcome the above-mentioned shortcoming of known loud speaker.

The technical scheme that its technical problem that solves the utility model adopts is: in the magnetic circuit of loud speaker, the basin frame, magnetic conductive board, magnet steel, T shape iron connects successively, one end of bugle shape bass vibrating diaphragm is linked to each other with the basin frame, the other end and bass voice coil loudspeaker voice coil and bullet phase of wave even constitute woofer, the high pitch suspension body is installed on T shape iron core column, high pitch suspension body outward flange and high pitch voice-coil inwall are bonding, the non-coiling port of high pitch voice coil loudspeaker voice coil outer rim is installed the high pitch mould that shakes, the high pitch voice coil leads is drawn by T shape iron mesopore, thereby composition high pitch loudspeaker, the high pitch voice coil loudspeaker voice coil is nested in bass voice coil loudspeaker voice coil inside in the concentric circles mode and also hangs on simultaneously in the common magnetic gap that forms of magnetic conductive board and T shape iron core column, when bass signal and high pitched signal are sent as bass voice coil loudspeaker voice coil and high pitch voice coil loudspeaker voice coil respectively, two coils are subjected to the action of a magnetic field in the magnetic gap simultaneously and produce vibration, and drive woofer mould and the high pitch loudspeaker mould that shakes that shakes and send bass and high pitch sound wave respectively, frequency bandwidth is the upper limiting frequency of the lower frequency limit of woofer to high pitch loudspeaker, the shake vibration axis of mould of mould and high pitch is identical because bass shakes, bass sound wave and high pitch sound wave concentric on the direction of acoustic radiating, promptly reach the purpose of " coaxial ", and the sounding starting point of woofer is a bass shake the chasing after on the summit of mould, the sounding starting point of high pitch loudspeaker is that high pitch shakes on the spherical crown summit of mould, by the thickness of regulating the high pitch suspension body sounding starting point of woofer and the sounding starting point of high pitch loudspeaker are coincided, promptly satisfied high pitch loudspeaker and woofer purpose with " concurrent " of same point sounding.

The beneficial effects of the utility model are, when can play wide band audio signal, finish the coaxial reproducing characteristics of concurrent easily, and the magnetic circuit drive system only adopts a cover, and is simple in structure.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the profile of the coaxial coaxial loudspeaker of concurrent.

Fig. 2 is bugle shape bass vibrating diaphragm and sounding point schematic diagram.

Fig. 3 is a high pitch sounding point schematic diagram.

Fig. 4 is the high and low sound sounding point of the concurrent coaxial loudspeaker schematic diagram that coincides.

Among the figure, (1). basin frame, (2). the bugle shape bass mould that shakes, (3) .T shape iron mesopore, (4). the high pitch mould that shakes, (5). the bass voice coil loudspeaker voice coil, (6). bass sounding point, (7). high pitch sounding point, (8). magnetic conductive board, (9). magnet steel, (10) .T shape iron, (11). high pitch voice coil loudspeaker voice coil, (12). play ripple, (13). the high pitch suspension body.

Embodiment

In Fig. 1, basin frame (1), magnetic conductive board (8), magnet steel (9), T shape iron (10) concentric circles successively connect, the concentric connection of upper surface of the basal surface of basin frame (1) and magnetic conductive board (8), the concentric connection of upper surface of the lower surface of magnetic conductive board (8) and magnet steel (9), the lower surface of magnet steel (9) and concentric connection of T shape iron (10), and make between the stem stem of magnetic conductive board (8) and T shape iron (10) and form magnetic gap.

The outward flange of bugle shape bass vibrating diaphragm (2) links to each other with the top edge of basin frame, the centre bore of bugle shape bass vibrating diaphragm (2) links to each other with the mesopore of bass voice coil loudspeaker voice coil (5) and bullet ripple (12), constitute woofer, high pitch suspension body (13) is installed on T shape iron core column, high pitch suspension body (13) outward flange and high pitch voice coil loudspeaker voice coil (11) inwall are bonding, the non-coiling port outer rim of high pitch voice coil loudspeaker voice coil (11) is installed the high pitch mould (4) that shakes, the lead-out wire of high pitch voice coil loudspeaker voice coil (11) is drawn by T shape iron mesopore (3), thereby composition high pitch loudspeaker, the high pitch voice coil loudspeaker voice coil also hangs in the common magnetic gap that forms of stem stem of magnetic conductive board (8) and T shape iron (10) simultaneously with the inside that the concentric circles mode is nested in the bass voice coil loudspeaker voice coil, when bass signal and high pitched signal are sent as bass voice coil loudspeaker voice coil and high pitch voice coil loudspeaker voice coil respectively, two coils are subjected to the action of a magnetic field in the magnetic gap simultaneously and produce vibration, and drive woofer mould and the high pitch loudspeaker mould that shakes that shakes and send bass and high pitch sound wave respectively, frequency bandwidth is the upper limiting frequency of the lower frequency limit of woofer to high pitch loudspeaker, the shake vibration axis of mould of mould and high pitch is identical because bass shakes, the bass sound wave is concentric on the direction of acoustic radiating with the high pitch sound wave, promptly reaches the purpose of " coaxial ".

Among Fig. 2, Fig. 3, Fig. 4, the sounding starting point of woofer is bugle shape bass the chasing after on the summit (6) of mould (2) of shaking, the sounding starting point of high pitch loudspeaker is that high pitch shakes on the spherical crown summit (7) of mould (4), the sounding starting point (7) that makes the sounding of woofer play (6) initial point and high pitch loudspeaker by the thickness of regulating high pitch suspension body (13) coincides, and has promptly satisfied high pitch loudspeaker and the woofer purpose with " concurrent " of same point sounding.

Claims

1, a kind of concurrent coaxial loudspeaker, add the bass vibrating diaphragm and the bass voice coil loudspeaker voice coil constitutes woofer by basin frame, the magnetic circuit system of loud speaker, form high pitch loudspeaker by shake mould, high pitch voice coil loudspeaker voice coil, bass magnetic circuit of high pitch, it is characterized in that: on the basin frame of loud speaker, magnetic circuit system, connect bass vibrating diaphragm and bass voice coil loudspeaker voice coil, on T shape iron core column, high pitch loudspeaker is installed.

2, concurrent coaxial loudspeaker according to claim 1, its feature are that also the curved surface of bass vibrating diaphragm is a bugle expansion structure, makes high pitch loudspeaker be in the throat of bass bugle.