CN202652505U - Loading hole type loudspeaker box - Google Patents
Loading hole type loudspeaker box Download PDFInfo
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- CN202652505U CN202652505U CN 201220324507 CN201220324507U CN202652505U CN 202652505 U CN202652505 U CN 202652505U CN 201220324507 CN201220324507 CN 201220324507 CN 201220324507 U CN201220324507 U CN 201220324507U CN 202652505 U CN202652505 U CN 202652505U
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- loading
- hole
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Abstract
Disclosed in the utility model is a loading hole type loudspeaker box that is characterized in that the loudspeaker box comprises a driving cavity and a driven cavity. The driving cavity includes a sound cone hole and a loading hole; a loudspeaker is sealed and fixed on the sound cone hole; the driving cavity is communicated with the external air through the loading hole; and one surface of the sound cone of the loudspeaker is communicated with the free space. And the driven cavity is communicated with the driving cavity through the loading hole. Besides, the cross section area of the loading hole is less than the duct cross section areas at the two sides and is no larger than the two-thirds of the active areas of all vibration units inside the driving cavity; and the volume of the driving cavity is less than the half of the whole volume of the driving cavity and the driven cavity. According to the utility model, the loading hole enables a loading component for improving the transient response of the box body to be formed, thereby resolving the conflict of the bass frequency response and the transient effect and lowering the requirement on the loudspeaker. Meanwhile, the bass frequency response and the transient effect of the whole system can be processed by a relatively independent mode, thereby reducing the cost of the loudspeaker.
Description
Technical field
The utility model relates to a kind of audio amplifier with loading cellular type.
Background technology
In the design of sound box system, frequency response and transient state effect are two Important Parameters that impact is listened to, and the former has reacted the reducing power of electroacoustic converting system at the particular audio segment amplitude proportion, and latter's reaction is the time-delay attenuation characteristic of audio frequency.
Work as electro-acoustic transducing device, magnetic speaker for example, in the scope (tens of Hz) of bass when having enough good frequency response, the inevitable vibratility adjustment of its vibrating diaphragm is large but a little less than its elasticity just seems thus, must cause the transient state effect poor; In like manner, in bass range, if require the transient response of speaker system enough good, the frequency response of its lower frequency must be decayed so, so, in the audio-frequency electric sound converting apparatus, especially in the bass frequency range, frequency response and transient state effect are one and reduce and more inconsistent contradiction along with frequency.On this phenomenon, the loud speaker of excellent in design makes its sound basin vibratility adjustment enough large, has again enough elasticity, can improve this contradiction, but the thing followed will inevitably significantly improve the loud speaker cost.And its to improve the space very limited.
The utility model content
In above-mentioned electroacoustic converting system, bass frequencies response and the conflicting problem that is difficult to be in harmonious proportion of transient state effect the utility model proposes a kind of loading cellular type audio amplifier, and its technical scheme is as follows:
A kind of loading cellular type audio amplifier, it comprises:
Initiatively the chamber comprises a sound basin hole and a loading hole; Seal fixedly loud speaker on the described sound basin hole; This active chamber communicates by described loading Kong Yuqi extraneous air; The sound basin of described loud speaker has one side to be communicated with free space; And
Driven chamber is communicated with described active chamber by described loading hole; Wherein, the cross-sectional area in described loading hole is less than the air duct cross-sectional area of its both sides; And be not more than 2/3 of all vibration unit effective areas in the described active chamber; And the volume in described active chamber is no more than half of described active chamber and driven cavity volume.
As the improvement of above basic technical scheme, can aspect following, be embodied:
In one preferred embodiment, have a dividing plate between described active chamber and the driven chamber, described loading hole is positioned on this dividing plate, and the cross-sectional area in described loading hole is less than the cross-sectional area on described dividing plate two sides in described active chamber and in the driven chamber.
In one preferred embodiment, described active chamber has a sound basin hole.
In one preferred embodiment, described vibration unit comprises sound basin and the passive vibrating diaphragm of described loud speaker; Described active chamber also comprises at least one vibrating diaphragm hole, and each described vibrating diaphragm is fixed respectively a described passive vibrating diaphragm; Described passive vibrating diaphragm and described active chamber keep sealing.
In one preferred embodiment, described active chamber has a separator tube that is communicated with it, and the inwall of this separator tube shrinks gradually from the described active chamber beginning and stretches into described passive chamber; Its terminal inwall of described separator tube continues to extend and enlarges gradually formation one oviduct again; Described loading hole is positioned at the place, minimum-value aperture that described oviduct is connected with separator tube.
In one preferred embodiment, described driven chamber is closed, and its inner space is except with described loading hole is communicated with, and it is airtight that remainder keeps.
In one preferred embodiment, described driven chamber is inverted phase type, and its inner space is except with described loading hole is communicated with, and also tool is communicated with the external freedom space by the phase-reversing tube of an inside.
The beneficial effect that the utility model brings is:
1. load the resistance that circulation of air has been strengthened in the hole, produced suitable flow-disturbing, consisted of a loading component that improves the casing transient response, set its transient state effect by loading the hole, solved to a great extent the contradiction of bass frequencies response with the transient state effect, reduced the requirement to loud speaker, made simultaneously bass frequencies response and the transient state effect of whole system obtain processing relatively independently.This so that the loud speaker cost be reduced.
2. initiatively the chamber adds passive vibrating diaphragm, and the phase-reversing tube in driven chamber also consists of the one-level paraphase, and except with frequency response and the transient state effect separating treatment, the bass frequencies of whole casing respond very outstanding; Simultaneously, the bass frequencies response can be supplied via passive vibrating diaphragm and phase-reversing tube, has further reduced the requirement to loud speaker.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing embodiment:
Fig. 1 is the cutaway view of the utility model embodiment one;
Fig. 2 is the cutaway view of the utility model embodiment two;
Fig. 3 is the cutaway view of the utility model embodiment three;
Fig. 4 is the cutaway view of the utility model embodiment four.
Embodiment
Embodiment one:
As shown in Figure 1, the present embodiment one is the form of a closed voice box.Driven chamber 20 has occupied most of space of casing, at casing a sound basin hole 11 is arranged.There is a less active chamber 10 position at 11 places, sound basin hole in casing, and the loading hole 12 on the active chamber 10.When the mode that loads after the loud speaker 13 was fixed in sound basin hole 11, initiatively chamber 20 had consisted of sealing state with loud speaker 13, and the sound basin outer surface of loud speaker 13 is communicated with free space by sound basin hole 11.Initiatively the driven chamber 20 that hole 12 is communicated with its outsides is only passed through to load in chamber 10 simultaneously.
In the present embodiment, initiatively the volume in chamber 10 is 1/3 of driven chamber 20 volumes, the cross-sectional area that loads hole 12 be loud speaker 13 sound pelvics surface of sacrum long-pending 2/3, all less than the cross-sectional area of its both sides air duct.
So, sound basin when loud speaker 13, when vibrating as vibration unit unique in the present embodiment, initiatively the air in the chamber 10 becomes the load at its sound basin back side, and travel to and fro between between active chamber 10 and the driven chamber 20 by loading hole 12, load hole 12 all less than the cross-sectional area of its both sides air duct, strengthened the resistance of circulation of air, produced suitable flow-disturbing, consisted of a loading component that improves the casing transient response, this makes the transient response of whole casing, particularly the transient response of bass is not in the constraint that is subjected to loud speaker 13 itself, so, by setting the frequency response of loud speaker 13 itself, and set its transient state effects by loading hole 12, the frequency response of bass is separated with the restraining factors of transient state effect, solved to a great extent the contradiction of bass frequencies response with the transient state effect, reduced the sound basin requirement to loud speaker 13, made simultaneously bass frequencies response and the transient state effect of whole system obtain processing relatively independently.This so that the loud speaker cost be reduced.The driven chamber 20 of the present embodiment is sealed type, and itself is except loading 12 connection active chambeies 10, hole, and it is airtight that remainder keeps, and is suitable for the design of sealed type audio amplifier.
Embodiment two:
Such as Fig. 2, the driven chamber 20 of the present embodiment is inverted phase type, is driven chamber 20 except by beyond loading hole 12 and its active chamber 10 keeping being communicated with, and a phase-reversing tube 21 is communicated with the free space maintenance of outside in addition.
On active chamber 10, a sound basin hole 11 is arranged, the mode that similarly loads has later on been fixed loud speaker 13.But whole active chamber 10 also has two passive vibrating diaphragms 15 jointly as vibration unit except the sound basin of loud speaker 13.Each passive vibrating diaphragm 15 is fixed on vibrating diaphragm hole 14 and keeps sealing with the active chamber.In the present embodiment, the cross-sectional area that loads hole 12 be all vibration units, namely 1/4 of the sound basin of loud speaker 13 and all passive vibrating diaphragm 21 its cross-sectional areas.
The present embodiment is fit to the design of inverted phase type casing, and for embodiment one, initiatively chamber 10 has added passive vibrating diaphragm 15, has consisted of the one-level paraphase, has improved the effect of bass; Simultaneously the phase-reversing tube in driven chamber 20 also consists of the one-level paraphase, and except with frequency response and the transient state effect separating treatment, the bass frequencies of whole casing respond very outstanding; Simultaneously, the bass frequencies response can be supplied via passive vibrating diaphragm 15 and phase-reversing tube 21, has further reduced the requirement to loud speaker 13.
Embodiment three:
Such as Fig. 3, the utility model embodiment four cutaway views.The present embodiment four initiatively chamber 10 is similar with embodiment three, has the loud speaker 13 of sound basin hole 11 and rear loading, and has the vibrating diaphragm hole 14 of having fixed the vibrating diaphragm 15 of not moving.Simultaneously, driven chamber 20 also has a phase-reversing tube 21, different is, loading hole 12 no longer similar embodiment one and two is modes of perforate on a dividing plate, but has a separator tube 31 that is communicated with it in active chamber 10, the inwall of this separator tube shrinks gradually from 10 beginnings of active chamber and stretches into passive chamber 20, and simultaneous buffering pipe 31 its terminal inwalls continue to extend and gradually expansion formation one oviduct 32 again; Loading hole 12 is to be positioned at the place, minimum-value aperture that oviduct 32 is connected with separator tube 31.As seen, initiatively chamber 10 has also comprised the space in the separator tube 31, and the space in the oviduct 32 belongs to driven chamber 20.Similarly, load hole 12 all less than the air duct cross-sectional area of its both sides, when the vibration unit in the active chamber 10 is worked, the air pressurized is travelled to and fro between the loading hole and has been consisted of load, simultaneously, separator tube 31 and oviduct 32 are the form of gradual change internal diameter, and its air turbulence is few, steady air current, transient distortion is less.
Embodiment four:
Such as Fig. 4, the cutaway view of the utility model embodiment four.In the present embodiment, the loud speaker 13 that has loaded before initiatively the sound basin hole 11 on the chamber 10 has been fixed, the sound basin of loud speaker 13 directly acts on initiatively chamber 10 inner airs.Simultaneously, from loud speaker 13 sound basin vibration planes towards the path that loads hole 12, separator tube 31 and horn mouth 32 with gradual change, the container inner wall in this path changes continuously, the flex point that does not have sudden change, when air was back and forth advanced with separator tube 31 and horn mouth 32, it is minimum that its air loads the turbulent flow that produces, and has very stable transient state effect.
The above, it only is the utility model preferred embodiment, therefore can not limit according to this scope that the utility model is implemented, the equivalence of namely doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (7)
1. one kind loads the cellular type audio amplifier, it is characterized in that: comprising:
Initiatively the chamber comprises a sound basin hole and a loading hole; Seal fixedly loud speaker on the described sound basin hole; This active chamber communicates by described loading Kong Yuqi extraneous air; The sound basin of described loud speaker has one side to be communicated with free space; And
Driven chamber is communicated with described active chamber by described loading hole; Wherein, the cross-sectional area in described loading hole is less than the air duct cross-sectional area of its both sides; And be not more than 2/3 of all vibration unit effective areas in the described active chamber; And the volume in described active chamber is no more than half of described active chamber and driven cavity volume.
2. described a kind of loading cellular type audio amplifier according to claim 1, it is characterized in that: have a dividing plate between described active chamber and the driven chamber, described loading hole is positioned on this dividing plate, and the cross-sectional area in described loading hole is less than the cross-sectional area on described dividing plate two sides in described active chamber and in the driven chamber.
3. described a kind of loading cellular type audio amplifier according to claim 1 and 2, it is characterized in that: described active chamber has a sound basin hole.
According to claim 1 and 2 in each described a kind of loading cellular type audio amplifier, it is characterized in that: described vibration unit comprises sound basin and the passive vibrating diaphragm of described loud speaker; Described active chamber also comprises at least one vibrating diaphragm hole, and each described vibrating diaphragm is fixed respectively a described passive vibrating diaphragm; Described passive vibrating diaphragm and described active chamber keep sealing.
5. described a kind of loading cellular type audio amplifier according to claim 1, it is characterized in that: described active chamber has a separator tube that is communicated with it, and the inwall of this separator tube begins from described active chamber to shrink gradually and stretches into described passive chamber; Its terminal inwall of described separator tube continues to extend and enlarges gradually formation one oviduct again; Described loading hole is positioned at the place, minimum-value aperture that described oviduct is connected with separator tube.
6. described a kind of loading cellular type audio amplifier according to claim 1, it is characterized in that: described driven chamber is closed, and its inner space is except with described loading hole is communicated with, and it is airtight that remainder keeps.
7. described a kind of loading cellular type audio amplifier according to claim 1, it is characterized in that: described driven chamber is inverted phase type, and its inner space is except with described loading hole is communicated with, and also tool is communicated with the external freedom space by the phase-reversing tube of an inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324507 CN202652505U (en) | 2012-07-05 | 2012-07-05 | Loading hole type loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324507 CN202652505U (en) | 2012-07-05 | 2012-07-05 | Loading hole type loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202652505U true CN202652505U (en) | 2013-01-02 |
Family
ID=47421525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220324507 Expired - Lifetime CN202652505U (en) | 2012-07-05 | 2012-07-05 | Loading hole type loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202652505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843624A (en) * | 2012-07-05 | 2012-12-26 | 李世煌 | Loudspeaker box structure with loading hole |
-
2012
- 2012-07-05 CN CN 201220324507 patent/CN202652505U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843624A (en) * | 2012-07-05 | 2012-12-26 | 李世煌 | Loudspeaker box structure with loading hole |
| CN102843624B (en) * | 2012-07-05 | 2016-08-24 | 李世煌 | Loudspeaker box structure with loading hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |