CN1041047C - Loud-speaker device with 180 deg. sector radiation - Google Patents
Loud-speaker device with 180 deg. sector radiation Download PDFInfo
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- CN1041047C CN1041047C CN96102624A CN96102624A CN1041047C CN 1041047 C CN1041047 C CN 1041047C CN 96102624 A CN96102624 A CN 96102624A CN 96102624 A CN96102624 A CN 96102624A CN 1041047 C CN1041047 C CN 1041047C
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- half cone
- loud speaker
- reflector
- fan beam
- loudspeaker
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Abstract
The present invention discloses a fanlike radiation loudspeaker device at 180 DGE C. A double half cone reflector is arranged on the sound production surface of a loudspeaker, the internal half cone reflector is adjacent to the sound production surface of the loudspeaker, and the external half cone reflector is connected with the loudspeaker into a whole through a transitional surface. In addition, a half cone guiding radiator is arranged on the sound production surface of the loudspeaker, the half cone guiding radiator comprises a deformation pipe connected with the loudspeaker and a half cone flow guider composed of a half cone body, a flow guiding sheet and a supporting ring. The loudspeaker device can generate a fanlike radiation area of 180 DGE C, and can be respectively used for mediant, treble or bass high-quality wide-area stereo reproduction systems. The present invention has the characteristic of accurate sound image positioning in a large range.
Description
The present invention relates to the speaker unit in the electro-acoustic element.
Loud speaker is the electro-acoustic element that is converted to sound wave by electric energy, can be widely used in various stereo sets.Existing speaker unit divides by its angle of radiation two kinds usually, a kind of is the single beam of radiation loud speaker, its angle of radiation is little, the acoustic radiation angular distribution is extremely inhomogeneous, when founding part sound playback system with this speaker unit composition, the stereo field of being synthesized is very little, and causes the variation of stereo sound image position along with the variation of listening the hearer position, can not reappear stereophonic effect in high quality.Another kind is the loud speaker of isotropic directivity, as application number 92201627.5 " omni-directional loud speaker ", the first and second two branches of processing are realized to device on the basis of conventional loudspeakers, promptly adopt dish-shaped rosette and lid shape rosette to form the first and second two branches to device, its angle of radiation is 360 °, acoustic radiation is an annular spread, when forming stereo reproducing system with this speaker unit, its backward the sound wave of radiation behind secondary reflection, arrive when listening the hearer, can make stereo sound image produce the sense of hearing of location ambiguity, if absorb the sound wave of radiation backward,, can cause the closely acoustical power loss of half though can suppress the part secondary reflection with sound-absorbing material.
The objective of the invention is to: thoroughly overcome the defective of prior art and provide a kind of radiation areas be 180 °, acoustic radiation distributes relatively evenly, conversion efficiency is high, the secondary reflection composition is very little, the speaker unit of acoustic image accurate positioning when forming stereo reproducing system.
The present invention is achieved by the following scheme: a kind of is to be provided with the loud speaker that is connected with it in the loud speaker case, the sounding face corresponding position of loud speaker is connected with reflector, its special character is that this reflector is the double semicone reflectors with 180 ° of fan beam zones, it is by forming near the interior half cone reflector of loud speaker generating plane and the outer half cone reflector that leaves the loud speaker generating plane, and both bore point relatively and by the continuous one of transition face.
Another kind is to be provided with the loud speaker that is connected with it in loudspeaker acoustic enclosure, loud speaker sounding face corresponding position is connected with radiator, its special character is that this radiator is a kind of half cone guiding radiator with 180 ° of fan beam zones, and it is made up of the half cone air deflector that is fixedly connected on the converting pipe below the loudspeaker acoustic enclosure sounding face and be fixedly connected on below the converting pipe.
The present invention compares with known technology, because loud speaker acoustic radiation angle is 180 ° of fan-shaped area radiation, so the secondary reflection composition is minimum, acoustic radiation distributes even relatively, conversion efficiency improves greatly, acoustic image accurate positioning when forming stereo reproducing system, make the radiation of loud speaker have the stereo field of broad, thereby reach the well stereo effect of listening to, its frequency characteristics reaches balanced effect in 180 ° of radiation scopes, can be respectively applied for the wide regional stereophonic reproducing system of high-quality of middle and high sound or bass.
Description of drawings.
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the STRUCTURE DECOMPOSITION figure of Fig. 1.
Fig. 3 is the another kind of structural representation of the present invention.
Fig. 4 is the STRUCTURE DECOMPOSITION figure of Fig. 3.
Be further elaborated again by above-mentioned accompanying drawing embodiment.
A kind of embodiment of 180 ° of fan beam speaker units sees Fig. 1-2 for details, form by loud speaker case (1), loud speaker (2), double semicone reflectors, loud speaker case and loud speaker screw, simultaneously again with the double semicone reflectors screw, have the reservation location hole that connects audio amplifier on the double semicone reflectors, the sounding face of loud speaker vertically downward.
Double semicone reflectors has 180 ° of fan beam zones, it is that interior half cone reflector (3) and the outer half cone reflecting surface (5) that leaves the loud speaker generating plane are formed by close loud speaker generating plane, the awl point of interior half cone reflector downwards, be the opposite direction of directional loudspeaker sounding face, inner conical surface is latter half of corresponding with the loud speaker sounding face; The awl of outer half cone reflector (5) point upwards, i.e. directional loudspeaker sounding face direction, male cone (strobilus masculinus) is corresponding with loud speaker sounding face first half; The awl of inside and outside half cone reflector point phase time and by intermediate transition surface (4) one that links to each other adopts metal or non-metallic material, can use die casting, casting, injection moulding global formation on the technology.
Interior half cone reflector (3), outer half cone reflector (5), loud speaker (2) three's central axis can overlap mutually or be the center with the loud speaker axis, inside and outside half cone reflector axis separation both sides are parallel to each other, and portion must be on the same transition face (4).When the mutual coincidence of three axis was on the same transition face, the acoustic radiation intensity in 180 ° of zones equated; When interior half cone reflector axis is in loud speaker axis the right and outer half cone reflector when being on the transition face of the left side, so You Bian acoustic radiation intensity just greatly, the left side is littler, otherwise, the acoustic radiation intensity on the left side more greatly, the right is littler, visual user needs to design.
When the loud speaker sounding, the acoustic radiation of first half is by the male cone (strobilus masculinus) reflection of half cone reflector outside the bottom, 180 ° of sector region radiation forwards, latter half of acoustic radiation is by the inner conical surface reflection of half cone reflector in the top, 180 ° of sector region radiation equally forwards, thus the sound wave of whole loud speaker intactly is radiated in 180 ° the sector region.When forming wide regional stereophonic reproducing system jointly, can obtain stereo sound image location accurately in big zone by 180 ° of fan beam speaker units more than two.This speaker unit is applicable to the stereophonic reproducing system when audio frequency is middle and high sound.
The another embodiment of 180 ° of fan beam speaker units sees Fig. 3-4 for details, form by working the loudspeaker acoustic enclosure (6), loud speaker (2), the half cone guiding radiator that help the sound effect, loudspeaker acoustic enclosure and loud speaker screw, guide the radiator screw with half cone again simultaneously, the sounding face of loud speaker vertically downward.
Half cone guiding radiator has 180 ° of fan beam zones, is made up of the half cone air deflector (8) that is fixedly connected on the converting pipe (7) below loudspeaker acoustic enclosure (6) sounding face and be fixedly connected on below the converting pipe.
The mouth of pipe cross section, upper end of converting pipe (7) is circular or oval, and is matchedly connected with the bottom surface homalographic of loud speaker.Mouth of pipe cross section, lower end is semicircle, and two ends mouth of pipe sectional area is equal substantially.
Half cone air deflector (8) is made up of the hemicone (10) of the sharp directional loudspeaker of awl, the uniform bracing ring (11) that is connected in the flow deflector (9) on the hemicone male cone (strobilus masculinus) and connects flow deflector, and the three can be with metal or non-metallic material through process global formations such as die casting, casting, injection mouldings.Flow deflector is from hemicone awl point to the awl end uniform radially 2～9, and vertical with horizontal plane, and the present invention adopts 9 chip architectures.The upper top of flow deflector at grade, by bracing ring reinforce forms semicircle, its connection of one side supporting deformation Guan Bingyu, and more important role has been that water conservancy diversion all-bottom sound radiation air-flow makes and obtains more uniform water conservancy diversion effect on the other hand.
When loud speaker sounding audio-frequency during near bass, the acoustic radiation air-flow is through the acoustic radiation cross sectional shape conversion of converting pipe, and the acoustic radiation of loud speaker is transformed into semicircle acoustic beam, again by the half cone air deflector equably to 180 ° of sector region radiative acoustic waves.When forming wide regional stereophonic reproducing system jointly, can obtain stereo sound image location accurately in big zone equally by 180 ° of fan beam speaker units more than two.This speaker unit is applicable to the stereophonic reproducing system when audio frequency is bass.
Claims (6)
1. 180 ° of fan beam speaker units, in loud speaker case (I), be provided with the loud speaker (2) that is connected with it, the sounding face corresponding position of loud speaker is connected with reflector, it is characterized in that described reflector is the double semicone reflectors with 180 ° of fan beam zones, it is by forming near the interior half cone reflector (3) of loud speaker generating plane and the outer half cone reflector (5) that leaves the loud speaker generating plane, and both bore point relatively and pass through the continuous one of transition face (4).
2. 180 ° of fan beam speaker units as claimed in claim 1, half cone reflector (3), outer half cone reflector (5), loud speaker (2) three's central axis can overlap mutually or is the center with the loud speaker axis in it is characterized in that, inside and outside half cone reflector axis separation both sides are parallel to each other, and portion must be on the same transition face.
3. 180 ° of fan beam speaker units, in loudspeaker acoustic enclosure (6), be provided with the loud speaker (2) that is connected with it, loud speaker sounding face corresponding position is connected with radiator, it is characterized in that this radiator is a kind of half cone guiding radiator with 180 ° of fan beam zones, it is formed by being fixedly connected on the converting pipe (7) below loudspeaker acoustic enclosure (6) sounding face and being fixedly connected on the following half cone air deflector (8) of converting pipe (7).
4. 180 ° of fan beam speaker units as claimed in claim 3 is characterized in that mouth of pipe cross section, described converting pipe (7) upper end for circular or oval, and mouth of pipe cross section, lower end is semicircle, and two ends mouth of pipe sectional area is equal substantially.
5. 180 ° of fan beam speaker units as claimed in claim 3 is characterized in that described half cone air deflector (8) is made up of the hemicone (10) of the sharp directional loudspeaker of awl, the uniform bracing ring (11) that is connected in the flow deflector (9) on the hemicone male cone (strobilus masculinus) and connects flow deflector.
6. 180 ° of fan beam speaker units as claimed in claim 5 is characterized in that described flow deflector (9) is sharp to boring uniform radially 2～9 of the end from hemicone (10) awl.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96102624A CN1041047C (en) | 1996-01-25 | 1996-01-25 | Loud-speaker device with 180 deg. sector radiation |
| CN96117314A CN1059538C (en) | 1996-01-25 | 1996-12-02 | Camber reflection loudspeaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96102624A CN1041047C (en) | 1996-01-25 | 1996-01-25 | Loud-speaker device with 180 deg. sector radiation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1135154A CN1135154A (en) | 1996-11-06 |
| CN1041047C true CN1041047C (en) | 1998-12-02 |
Family
ID=5117644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96102624A Expired - Fee Related CN1041047C (en) | 1996-01-25 | 1996-01-25 | Loud-speaker device with 180 deg. sector radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041047C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044376A (en) * | 1988-11-30 | 1990-08-01 | 费宗浩 | Speaker unit |
-
1996
- 1996-01-25 CN CN96102624A patent/CN1041047C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044376A (en) * | 1988-11-30 | 1990-08-01 | 费宗浩 | Speaker unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1135154A (en) | 1996-11-06 |
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| CF01 | Termination of patent right due to non-payment of annual fee |