CN202150931U

CN202150931U - Concurrent coaxial loudspeaker

Info

Publication number: CN202150931U
Application number: CN201120166408U
Authority: CN
Inventors: 闫天时
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-20
Filing date: 2011-05-20
Publication date: 2012-02-22
Anticipated expiration: 2021-05-20

Abstract

Provided is a concurrent coaxial loudspeaker in which high volume and low volume can sound at one point and be spread with a coaxial line. The loudspeaker 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 is made up of 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 accomplishing 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 through the organic assembling of two vibrational systems of high bass; Can not only the widening frequency band width frequently, and can some sounding synchronous transmissions playback point source sound characteristic, and overcome the above-mentioned shortcoming of known loud speaker.

The utility model solves the technical scheme that its technical problem adopted: in the magnetic circuit of loud speaker; Basin frame, magnetic conductive board, magnet steel, T shape iron connect successively; One end of bugle shape bass vibrating diaphragm is linked to each other with the basin frame, and the other end and bass voice coil loudspeaker voice coil and bullet phase of wave even constitute woofer, and 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, and the high pitch voice coil leads is drawn through T shape iron mesopore and is connected with high pitch terminal on being installed on T shape iron, thereby forms high pitch loudspeaker; The high pitch voice coil loudspeaker voice coil is nested in bass voice coil loudspeaker voice coil inside with 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 were admitted to bass voice coil loudspeaker voice coil and high pitch voice coil loudspeaker voice coil respectively, two coils received the action of a magnetic field in the magnetic gap simultaneously and produce vibration, and drove 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, and bass sound wave and high pitch sound wave concentric on the direction of acoustic radiating promptly reaches the purpose of " coaxial "; And being bass, the sounding starting point of woofer shakes on the conical point of mould; The sounding starting point of high pitch loudspeaker is that high pitch shakes on the spherical crown summit of mould, through the thickness of regulating the high pitch suspension body sounding starting point of woofer and the sounding starting point of high pitch loudspeaker is coincided, and has promptly satisfied high pitch loudspeaker and the woofer purpose with " concurrent " of same point sounding.

For making the high pitch diffusion realize the bugle characteristic, the curved surface of bass vibrating diaphragm is the bugle deployed configuration, and high pitch loudspeaker is in the throat of bass bugle, simultaneously the magnetic gap of high pitch voice coil loudspeaker voice coil and the shared bass magnetic circuit of bass voice coil loudspeaker voice coil.

The beneficial effect of the utility model is, when can play wide band audio signal, accomplishes 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 accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the profile of concurrent coaxial loudspeaker.

Wherein, (1) basin frame, (2) bugle shape bass mould that shakes, (3) T shape iron mesopore, (4) high pitch mould that shakes; (5) 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) high pitch suspension body, (14) high pitch terminal.

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, and 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 installation high pitch of high pitch voice coil loudspeaker voice coil (11) mould (4) that shakes; The lead-out wire of high pitch voice coil loudspeaker voice coil (11) is drawn through T shape iron mesopore (3) and is linked to each other with high pitch terminal (14); Thereby composition high pitch loudspeaker, high pitch voice coil loudspeaker voice coil are nested in the inside of bass voice coil loudspeaker voice coil with the concentric circles mode and hang on simultaneously in the common magnetic gap that forms of stem stem of magnetic conductive board (8) and T shape iron (10), when bass signal and high pitched signal are sent like bass voice coil loudspeaker voice coil and high pitch voice coil loudspeaker voice coil respectively; Two coils receive 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, owing to bass the shake vibration axis of mould of mould and high pitch that shakes is identical; The bass sound wave is concentric on the direction of acoustic radiating with the high pitch sound wave, promptly reaches the purpose of " coaxial ".

For making the high pitch diffusion realize the bugle characteristic; The curved surface of bass vibrating diaphragm (2) is the bugle deployed configuration; And high pitch loudspeaker is in (being made up of high pitch suspension body 13, high pitch voice coil loudspeaker voice coil 11, high pitch voice coil loudspeaker voice coil 11 and the high pitch mould 4 that shakes) throat of bass bugle, the magnetic gap of high pitch voice coil loudspeaker voice coil (4) and the shared bass magnetic circuit of bass voice coil loudspeaker voice coil (5) simultaneously.

Among Fig. 1; The sounding starting point of woofer is that bugle shape bass shakes on the conical point (6) of mould (2); The sounding starting point of high pitch loudspeaker is that high pitch shakes on the spherical crown summit (7) of mould (4); Through the thickness of regulating high pitch suspension body (13) or the length of reconciling the high pitch voice coil loudspeaker voice coil, the sounding starting point (7) of the sounding of woofer is risen (6) initial point and high pitch loudspeaker coincides, and has promptly satisfied high pitch loudspeaker and the woofer purpose with " concurrent " of same point sounding.

Claims

1. concurrent coaxial loudspeaker; It is characterized in that basin frame, magnetic conductive board, magnet steel, T shape iron connect 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, and the high pitch suspension body is installed on T shape iron core column, and 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 through T shape iron mesopore and is connected with high pitch terminal on being installed on T shape iron, thereby forms high pitch loudspeaker, and it is inner and hang on simultaneously in the magnetic gap of magnetic conductive board and the common formation of T shape iron core column that the high pitch voice coil loudspeaker voice coil is nested in the bass voice coil loudspeaker voice coil with the concentric circles mode.

2. concurrent coaxial loudspeaker according to claim 1, its characteristic 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.

3. concurrent coaxial loudspeaker according to claim 1, its characteristic also are the magnetic gap of high pitch voice coil loudspeaker voice coil and the shared bass magnetic circuit of bass voice coil loudspeaker voice coil.