CN201904904U - Jet type passive radiator sound box - Google Patents
Jet type passive radiator sound box Download PDFInfo
- Publication number
- CN201904904U CN201904904U CN201020689708XU CN201020689708U CN201904904U CN 201904904 U CN201904904 U CN 201904904U CN 201020689708X U CN201020689708X U CN 201020689708XU CN 201020689708 U CN201020689708 U CN 201020689708U CN 201904904 U CN201904904 U CN 201904904U
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- Prior art keywords
- passive radiator
- audio amplifier
- casing
- passive
- sound box
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- Expired - Lifetime
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a jet type passive radiator sound box which comprises a loudspeaker unit and a passive radiator unit(s). The passive radiator(s) can be one or several and are arranged on the bottom surface, two side surfaces, front surface, rear surface, top surface or interior of the sound box, and an open cavity is arranged in front of every radiator. Both the amount of low frequency and the low frequency transient state reaction capacity are improved through the air injection of the open cavity.
Description
Technical field
The utility model relates to audio amplifier, and particularly playback is than a kind of jet-propelled passive radiator audio amplifier of low-frequency sound effect.
Background technology
The passive radiator audio amplifier claims the sky basin audio amplifier that shakes again, as shown in Figure 1, traditional passive radiator audio amplifier is made up of a loudspeaker unit 1 and a passive radiation body unit 2, during work, loudspeaker unit 1 motion promotes the air in the casing, and airborne molecule moves back and forth as spring, promotes passive radiator 2 motions simultaneously, passive radiator 2 promotes outside air with certain frequency movement and produces low frequency, makes the low frequency of audio amplifier obtain expansion.
Summary of the invention
The purpose of this utility model is to improve the sense of low frequency amount, improves the jet-propelled passive radiator audio amplifier of low frequency transient response.
For achieving the above object, the utility model adopts following technical scheme:
A kind of jet-propelled passive radiator audio amplifier, comprise casing and be installed in loud speaker on the casing, it is characterized in that, also comprise the passive radiator that is installed on the casing, its quantity is one or more, be installed in bottom surface, two sides, front-back, end face or the box house of casing, all there is the cavity of an opening each radiant body front portion.The radiant body shape has circle, ellipse, runway shape, square etc., according to casing appearance and modeling or structure and decide.If a plurality of radiant bodies, the passive radiator of installing on that every cover audio amplifier is of similar shape, area, material, compliance, quality.
The beneficial effects of the utility model are, the single mode of operation of the passive radiator audio amplifier that breaks traditions, the motion by radiant body promote air in the cavity of front, produce tuning low frequency and by the outside high velocity jet of opening, to reach the amount sense that promotes low frequency, improve low frequency transient response ability.The a plurality of radiant bodies of even number are parallel to be installed in symmetrically that can to avoid casing in use to produce on the casing mobile if having.
Description of drawings
Fig. 1 is the mounting structure schematic diagram of prior art passive radiator audio amplifier;
Fig. 2 is installed in the side schematic view of back for the utility model single passive radiant body;
Fig. 3 is installed in the generalized section of back for the utility model single passive radiant body;
Fig. 4 is installed in the generalized section of two sides for two passive radiator symmetries of the utility model;
Fig. 5 is installed in the generalized section of top and bottom for two passive radiator symmetries of the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Shown in Fig. 2-5, during work, loudspeaker unit 1 motion promotes the air in the casing, airborne molecule moves back and forth as spring, promote passive radiator 2 motions simultaneously, air when passive radiator 2 outwards moves in the compression chamber 3, the air pressure in the cavity 3 are greater than external atmosphere pressure, and the air molecule in the chamber will outwards move by little opening 4.The direction of arrow is represented the direction of motion that this moment, air molecule sprayed along the air flow jetting mouth among Fig. 3.Air when passive radiator 2 moves in casing in the stretching cavity 3 makes air pressure in the cavity 3 less than external atmosphere pressure, and extraneous air will move in cavity 3 by little opening 4.This just finishes a period of motion.Because the air of passive radiator 2 compression chambers 3 and the cavity 3 outwards volume of the air of motion equate, and the vibration area of passive radiator 2 is much larger than the area of the little opening 4 of cavity 3, so by the movement velocity of the inwardly outer air velocity of moving of little opening 4 much larger than passive radiator, the air molecule of this kind high-speed motion is by extraneous more sufficient as low frequency amount senses that reflecting surface produced such as desktop, bodies of wall, energeticallyer, make the low frequency of audio amplifier obtain expansion.Counter-pressure effect in the cavity 3 simultaneously can also effectively reduce the motion spoke degree of passive radiator 2, reduces the transient distortion of passive radiator 2, improves transient response.
The shape of passive radiator 2 has circle, oval, runway shape, square or the like, according to casing appearance and modeling or structure and decide, a plurality of passive radiators 2 of installing on every cover audio amplifier are of similar shape, area, material, compliance, quality, adopt a plurality of passive radiator 2 effectively to vibrate area and increased relative multiple than the effective vibration area that adopts single passive radiant body 2, therefore the swept area of swept area when adopting single radiant body increased, Oscillation Amplitude is also little than the vibration spoke degree that adopts single radiant body, thereby reduced distortion, improved transient response.The gas flow that ejects from atrium also is multiplied, so the amount sense of low frequency is greatly improved.
The above is preferred embodiment of the present utility model only, is not limited to the present invention, allly does fixed any modification within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within the utility model protection range.
Claims (4)
1. jet-propelled passive radiator audio amplifier, comprise casing and be installed in loud speaker on the casing, it is characterized in that also comprise the one or more passive radiators that are installed on the casing, it is installed in bottom surface, two sides, front-back, end face or the box house of casing.
2. a kind of jet-propelled passive radiator audio amplifier according to claim 1 is characterized in that, described passive radiator be shaped as circle, ellipse, runway shape or square.
3. a kind of jet-propelled passive radiator audio amplifier according to claim 1 is characterized in that, described a plurality of passive radiators are of similar shape, area, material, compliance, quality.
4. a kind of jet-propelled passive radiator audio amplifier according to claim 1 is characterized in that there is the cavity of an opening front portion of described passive radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020689708XU CN201904904U (en) | 2010-12-30 | 2010-12-30 | Jet type passive radiator sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020689708XU CN201904904U (en) | 2010-12-30 | 2010-12-30 | Jet type passive radiator sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904904U true CN201904904U (en) | 2011-07-20 |
Family
ID=44275496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020689708XU Expired - Lifetime CN201904904U (en) | 2010-12-30 | 2010-12-30 | Jet type passive radiator sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904904U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395062A (en) * | 2011-10-24 | 2012-03-28 | 康佳集团股份有限公司 | Miniature sound box |
| CN104113796A (en) * | 2013-04-16 | 2014-10-22 | 淇誉电子科技股份有限公司 | Passive radiation type sound box improved structure |
| CN108513229A (en) * | 2016-08-31 | 2018-09-07 | 广东欧珀移动通信有限公司 | A kind of sound cavity apparatus and mobile terminal of mobile terminal |
| CN110475185A (en) * | 2019-08-13 | 2019-11-19 | 海能达通信股份有限公司 | Acoustic radiation component and audible device |
-
2010
- 2010-12-30 CN CN201020689708XU patent/CN201904904U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395062A (en) * | 2011-10-24 | 2012-03-28 | 康佳集团股份有限公司 | Miniature sound box |
| CN104113796A (en) * | 2013-04-16 | 2014-10-22 | 淇誉电子科技股份有限公司 | Passive radiation type sound box improved structure |
| CN108513229A (en) * | 2016-08-31 | 2018-09-07 | 广东欧珀移动通信有限公司 | A kind of sound cavity apparatus and mobile terminal of mobile terminal |
| CN110475185A (en) * | 2019-08-13 | 2019-11-19 | 海能达通信股份有限公司 | Acoustic radiation component and audible device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |
|
| CX01 | Expiry of patent term |