CN102685654A

CN102685654A - Coaxial loudspeaker

Info

Publication number: CN102685654A
Application number: CN2012101374667A
Authority: CN
Inventors: 李植扬
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-04
Filing date: 2012-05-04
Publication date: 2012-09-19
Also published as: SG194287A1

Abstract

The invention provides a coaxial loudspeaker which comprises a bass loudspeaker unit and a high-pitch loudspeaker unit, wherein a flexible inner elastic edge by which the bass loudspeaker unit can form a relatively sealed magnetic path space is arranged between the bass loudspeaker unit and the high-pitch loudspeaker unit. According to the coaxial loudspeaker, the flexible inner elastic edge by which the bass loudspeaker unit can form the relatively sealed magnetic path space is arranged between the bass loudspeaker unit and the high-pitch loudspeaker unit, so that the bass loudspeaker unit has a relatively sealed magnetic path space; when a bass coil vibrates to cause air flowing, the inner elastic edge is driven by the air to cause lifting action to drive the air to flow, so that the bass effect is enhanced; and moreover, due to the arrangement of the inner elastic edge, the bass vibration area is effectively increased, and more sound quality effects are achieved.

Description

Coaxial loudspeaker

Technical field

The present invention relates to the loudspeaker techniques field, relate in particular to a kind of coaxial loudspeaker.

Background technology

Coaxial loudspeaker is meant has installed two loud speakers on same axle center, i.e. high pitch loudspeaker and woofer, the broadcast that is used for being responsible for respectively putting high pitch and bass.Because these two loud speakers overlap on the vibrating diaphragm face, and its physical positioning approaches point sound source, and the sound field location of the music of therefore resetting is very desirable.

As shown in Figure 1; Present coaxial loudspeaker, its woofer unit comprises: column bass U iron 11, be positioned over the inner bass magnet 12 of bass U iron, be arranged on bass magnet 12 tops bass magnetic conduction sheet 13, be arranged on bass coil 14 and bass vibrating diaphragm 15, outstanding limit 16 and support 17 between bass U iron 11 and bass magnet 12 spaces.Wherein, bass coil 14 is wrapped on the bass coil wrapping post 18, and an end of bass vibrating diaphragm 15 is connected with outstanding limit 16, and the other end is connected on the bass coil wrapping post 18.One end on outstanding limit 16 is connected on the support 17, and the other end is connected with bass vibrating diaphragm 15, and an end of support 17 is connected with outstanding limit 16, and an other end is connected on the bass U iron 11.Bass U iron 11, bass magnet 12 and bass magnetic conduction sheet 13 constitute complete magnetic circuit together, for bass coil 13 provides uniform magnetic field.

Its high pitch loudspeaker unit comprises: column high pitch U iron 21, be positioned over the inner high pitch magnet 22 of high pitch U iron, be arranged on high pitch magnet 22 tops high pitch magnetic conduction sheet 23, be arranged on high pitch coil 24 and tweeters diaphragms 25 between high pitch U iron 21 and high pitch magnet 22 spaces.Wherein, high pitch coil 24 is wrapped on the high pitch coil-winding post 26, and tweeters diaphragms 25 both sides are connected on the high pitch coil-winding post 26, its edge, and promptly tweeters diaphragms 25 both sides of the edge extend in the high pitch also fixing on the seat 27.High pitch U iron 21, high pitch magnet 22 and high pitch magnetic conduction sheet 23 constitute complete magnetic circuit together, for high pitch coil 24 provides uniform magnetic field.The high pitch loudspeaker unit is supported by seat 27 in the high pitch, and its high pitch U iron 21 is arranged in the high pitch in the seat 27.High pitch brace table 29 is arranged on the bass magnetic conduction sheet 13 through a beam 28, and is inserted in the bass magnet 12.According to coaxial loudspeaker real space size, can use beam 28, also can not use the moving pad 28 of damping.

But above-mentioned said coaxial loudspeaker has a space between its high pitch loudspeaker unit and the woofer unit; Make and, leave the magnetic circuit space complete closed not of woofer unit certain slit and communicate with extraneous air because seat 27, high pitch brace table 29 and bass magnetic conduction sheet 13 do not contact with bass coil wrapping post 18 in the high pitch; Therefore, when the bass coil vibrated, the bottom line astragal moved air movement; Cause that a part of air communication crosses said slit and flow out; It is much to leak gas, and can cause loud speaker bass vibrations benefit not high, and then has influenced the acoustical quality of coaxial loudspeaker.

Summary of the invention

For this reason, technical problem to be solved by this invention is: a kind of coaxial loudspeaker is provided, to overcome described in the background technology drawback of coaxial loudspeaker in the prior art, improves the acoustical quality of coaxial loudspeaker.

So; The invention provides a kind of coaxial loudspeaker; Comprise woofer unit and high pitch loudspeaker unit, wherein, between woofer unit and high pitch loudspeaker unit, be provided with in the flexibility that can make the woofer unit form relative sealing magnetic circuit space and play the limit.

Said woofer unit comprises: the bass coil wrapping post, bass vibrating diaphragm and the outstanding limit that are used to twine the bass coil; One end of bass vibrating diaphragm is arranged on the bass coil wrapping post; The other end is connected with outstanding limit; The high pitch loudspeaker unit comprises: be used to twine the high pitch coil-winding post and the tweeters diaphragms of high pitch coil, the two ends of tweeters diaphragms are arranged on the high pitch wrapping post, and the tweeters diaphragms both sides of the edge extend to that the high pitch seat that is used for supporting the high pitch loudspeaker unit is gone up and fixing from the high pitch wrapping post; An end that plays the limit in said is arranged on the bass vibrating diaphragm, and the other end is arranged in the high pitch on the seat.

It is inverted U-shaped playing the limit in said, and its both sides are provided with the inboard edge in edge, the outside, interior bullet limit and interior bullet limit of the fixed connection effect that has been used for of turning up.

It is inboard along being formed in one to play limit and edge, the outside, interior bullet limit thereof and interior bullet limit in said.

Coaxial loudspeaker according to the invention; Play the limit through between woofer unit and high pitch loudspeaker unit, being provided with in the flexibility that can make the woofer unit form relative sealing magnetic circuit space; Make the woofer unit that a magnetic circuit space of sealing has relatively been arranged; Overcome coaxial loudspeaker in the prior art and made the magnetic circuit space complete closed not of woofer unit because of the slit between woofer unit and the high pitch loudspeaker unit, the problem of the acoustical quality difference that causes.Coaxial loudspeaker according to the invention, when bass coil shuttle belt moved air flow, interior bullet limit can be played one by air driven and lifted the effect that drives air flow, has increased bass effect.Simultaneously, the increase on interior bullet limit has increased bass vibration area effectively, and abundant more acoustical quality is provided.

Description of drawings

Fig. 1 is a coaxial loudspeaker sectional structure sketch map in the prior art;

Fig. 2 is a coaxial loudspeaker perspective view shown in the embodiment of the invention;

Fig. 3 is a coaxial loudspeaker plan structure sketch map shown in Figure 2;

Fig. 4 is a coaxial loudspeaker A-A direction cross-sectional schematic shown in Figure 3;

Fig. 5 analyses and observe the blast structural representation for coaxial loudspeaker shown in Figure 4.

Embodiment

Below, describe the present invention in conjunction with accompanying drawing.

To shown in Figure 5, present embodiment provides a kind of coaxial loudspeaker like Fig. 2, and this coaxial loudspeaker comprises: woofer unit and high pitch loudspeaker unit.

Wherein, the woofer unit comprises: column bass U iron 31, be positioned over the inner bass magnet 32 of bass U iron 31, be arranged on bass magnet 32 tops bass magnetic conduction sheet 33, be arranged on bass coil 34 and bass vibrating diaphragm 35, outstanding limit 36 and support 37 between bass U iron 31 and bass magnet 32 spaces.Bass coil 34 is wrapped on the bass coil wrapping post 38, and an end of bass vibrating diaphragm 35 is connected with outstanding limit 36, and the other end is connected on the bass coil wrapping post 38.One end on outstanding limit 36 is connected on the support 37, and the other end is connected with bass vibrating diaphragm 35, and an end of support 37 is connected with outstanding limit 36, and an other end is connected on the bass U iron 31.Bass U iron 31, bass magnet 32 and bass magnetic conduction sheet 33 constitute complete magnetic circuit together, for the bass coil provides uniform magnetic field.

Wherein, the high pitch loudspeaker unit comprises: column high pitch U iron 41, be positioned over the inner high pitch magnet 42 of high pitch U iron, be arranged on high pitch magnet 42 tops high pitch magnetic conduction sheet 43, be arranged on high pitch coil 44 and tweeters diaphragms 45 between high pitch U iron 41 and high pitch magnet 42 spaces.Wherein, high pitch coil 44 is wrapped on the high pitch coil-winding post 46, and tweeters diaphragms 45 both sides are connected on the high pitch coil-winding post 46, its edge, and promptly tweeters diaphragms 45 both sides of the edge extend in the high pitch also fixing on the seat 47.

High pitch U iron 41, high pitch magnet 42 and high pitch magnetic conduction sheet 43 constitute complete magnetic circuit together, for the high pitch coil provides uniform magnetic field.The high pitch loudspeaker unit is supported by seat 47 in the high pitch, and its high pitch U iron 41 is arranged in the high pitch in the seat 47.The high pitch loudspeaker unit is supported by seat 47 in the high pitch, and its high pitch U iron 41 is arranged in the high pitch in the seat 47.High pitch brace table 49 is arranged on the bass magnetic conduction sheet 33 through a beam 48, and is inserted in the bass magnet 32.According to coaxial loudspeaker real space size, can use beam 48, also can not use beam 48.

In the present embodiment, coaxial loudspeaker is provided with between woofer unit and high pitch loudspeaker unit in the flexibility that can make the woofer unit seal the magnetic circuit space relatively and plays limit 50.So just overcome between unit of high pitch loudspeaker described in the background technology and the woofer unit space has been arranged; Promptly owing to seat, high pitch brace table and bass spring shim in the high pitch do not contact with bass coil wrapping post; Leave certain slit and communicate, cause the drawback of coaxial loudspeaker acoustical quality difference with extraneous air.

Concrete, the two ends of tweeters diaphragms 45 are arranged on the high pitch wrapping post 46, and tweeters diaphragms 45 both sides of the edge extend to the high pitch seat 47 that is used for supporting the high pitch loudspeaker unit from high pitch wrapping post 46, and are fixed in the high pitch on the seat 47.In play limit 50 an end be arranged on the bass vibrating diaphragm, the other end then is arranged in the high pitch on the seat 47.In play limit 50 and can be fixed on the both sides of the edge stack of tweeters diaphragms 45 in the high pitch on the seat 47, also can not superpose is separately fixed in the high pitch on the seat 47.Interior bullet limit 50 is inverted U-shaped, and its both sides are provided with the edge 51, the outside, interior bullet limit and edge, inboard, interior bullet limit 52 of the fixed connection effect that has been used for of turning up.In play the outside, limit is connected with bass vibrating diaphragm 35 along 51 fixing, interior bullet limit inboard along 52 with high pitch in 47 be connected and fix.The outside, interior bullet limit is fixing with interior bullet limit 50 with edge 52, inboard, interior bullet limit along 51.In the present embodiment, the said interior limit 50 and edge 51, the outside, interior bullet limit and inboard, interior bullet limit thereof of playing is formed in one along 52.

Therefore; Form the magnetic circuit space of sealing relatively in bass coil 35, bass wrapping post 38, bass U iron 31, bass magnet 32, bass magnetic conduction sheet 33, interior bullet limit 50 and the high pitch between seat 47, the high pitch brace table 49; When bass coil 34 moves in the magnetic field in said magnetic circuit space and drives air flow; Play limit 50 in flexible and can be played an effect that lifts the drive air flow, increased bass effect by air driven.Simultaneously, the increase on interior bullet limit 50 has increased bass vibration area effectively, has enriched acoustical quality more.

In sum; The said coaxial loudspeaker of the embodiment of the invention; Play the limit through between woofer unit and high pitch loudspeaker unit, being provided with in the flexibility that can make the woofer unit form relative sealing magnetic circuit space; Make the woofer unit that a magnetic circuit space of sealing has relatively been arranged; Overcome coaxial loudspeaker in the prior art and made the magnetic circuit space complete closed not of woofer unit because of the slit between woofer unit and the high pitch loudspeaker unit, the problem of the acoustical quality difference that causes.Coaxial loudspeaker according to the invention, when bass coil shuttle belt moved air flow, interior bullet limit can be played one by air driven and lifted the effect that drives air flow, has increased bass effect.Simultaneously, the increase on interior bullet limit has increased bass vibration area effectively, and abundant more acoustical quality is provided.

The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a coaxial loudspeaker comprises woofer unit and high pitch loudspeaker unit, it is characterized in that, between woofer unit and high pitch loudspeaker unit, is provided with in the flexibility that can make the woofer unit form relative sealing magnetic circuit space and plays the limit.

2. coaxial loudspeaker according to claim 1; It is characterized in that said woofer unit comprises bass coil wrapping post, bass vibrating diaphragm and the outstanding limit that is used to twine the bass coil, an end of bass vibrating diaphragm is arranged on the bass coil wrapping post; The other end is connected with outstanding limit; The high pitch loudspeaker unit comprises high pitch coil-winding post and the tweeters diaphragms that is used to twine the high pitch coil, and the two ends of tweeters diaphragms are arranged on the high pitch wrapping post, and the tweeters diaphragms both sides of the edge extend to that the high pitch seat that is used for supporting the high pitch loudspeaker unit is gone up and fixing from the high pitch wrapping post; An end that plays the limit in said is arranged on the bass vibrating diaphragm, and the other end is arranged in the high pitch on the seat.

3. coaxial loudspeaker according to claim 2 is characterized in that, said interior bullet limit is inverted U-shaped, and its both sides are provided with the inboard edge in edge, the outside, interior bullet limit and interior bullet limit of the fixed connection effect that has been used for of turning up.

4. coaxial loudspeaker according to claim 3 is characterized in that, the said interior inboard edge in limit and edge, the outside, interior bullet limit and interior bullet limit that plays is formed in one.