CN201869329U - Active sound box - Google Patents
Active sound box Download PDFInfo
- Publication number
- CN201869329U CN201869329U CN2010206556352U CN201020655635U CN201869329U CN 201869329 U CN201869329 U CN 201869329U CN 2010206556352 U CN2010206556352 U CN 2010206556352U CN 201020655635 U CN201020655635 U CN 201020655635U CN 201869329 U CN201869329 U CN 201869329U
- Authority
- CN
- China
- Prior art keywords
- audio amplifier
- power amplifier
- casing
- fore shell
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses an active sound box which comprises a box body front shell and a box body rear shell, wherein the box body front shell and the box body rear shell constitute a cavity, a high-pitch loudspeaker is arranged at the upper part of the box body front shell, a base loudspeaker is arranged at the lower part of the box body front shell, a power amplifier is mounted on the box body rear shell, a plurality of paraphase holes are arranged on the sound box front shell, the paraphase holes are communicated with the cavity, the power amplifier comprises a power amplifier component and an aluminum heat dissipation plate, the power amplifier component is fixed on the aluminum heat dissipation plate, the aluminum heat dissipation plate is fixed on the box body rear shell, the power amplifier component extends into the cavity; and the active sound box has the advantages that when the active sound box works, the power amplifier component can generate a great amount of heat, one part of the heat is dissipated to the outside through the aluminum heat dissipation plate, the other part of the heat is dissipated into the cavity, and when the active sound box works, vibration of the bass loudspeaker can take the other part of the heat generated by the power amplifier component to the outside through the paraphase holes, thereby further accelerating the heat dissipation of the power amplifier component.
Description
Technical field
The utility model relates to a kind of audio-frequence player device, relates in particular to a kind of active audio amplifier.
Background technology
Audio amplifier is a kind of audio-frequence player device, and it is widely used in places such as outdoor scene stage, movie theatre and conference hall.Active audio amplifier is meant the audio amplifier of band power amplifier (power amplifier), its structure comprises a casing, and the preceding upper lateral part of casing is equipped with high pitch loudspeaker, and the preceding side lower part of casing is equipped with woofer, the casing rear side is provided with a groove of isolating with cabinets cavity, and power amplifier is placed in the groove.Because power amplifier the time can produce a large amount of heats in work, so power amplifier is provided with aluminium radiator, and aluminium radiator is positioned at the outer end of groove.Aluminium radiator can be dispersed into the heat that power amplifier produces in the air as soon as possible and go.Along with the continuous development of electronic technology, the power of power amplifier is done bigger and bigger, so the heat of its generation is also more and more, and is also big as far as possible to the volume and the surface area of radiator.The price of aluminum is very high, has increased the cost of audio amplifier, and the increase of aluminium material has directly caused the increase of audio amplifier weight and volume simultaneously, and this extensive use to audio amplifier has brought very big obstruction.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of good heat dissipation effect and lower-cost active audio amplifier.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of active audio amplifier, comprise casing fore shell and casing back cover, casing fore shell and casing back cover are formed a cavity, described casing fore shell top is provided with high pitch loudspeaker, described casing fore shell bottom is provided with woofer, on the casing back cover power amplifier is installed, described audio amplifier fore shell is provided with a plurality of paraphase holes, described paraphase hole communicates with described cavity, described power amplifier comprises power amplifier components and aluminium radiating board, power amplifier components is fixed on the aluminium radiating board, and aluminium radiating board is fixed on the casing back cover, and power amplifier components extend in the described cavity.
Described paraphase hole is four, and wherein two paraphase holes are positioned at the both sides of high pitch loudspeaker, and two other paraphase hole is positioned at the both sides, below of woofer.Two paraphase holes are positioned at the both sides, top of casing, and two paraphase holes are positioned at the both sides, bottom of casing, and the heat in the cavity is more disperseed, and take out of from paraphase hole more quickly.
Described casing back cover inboard is provided with acoustical cotton, and described acoustical cotton surrounds a gas channel behind power amplifier components, and described gas channel communicates with described four paraphase holes respectively.The effect of acoustical cotton is a standing wave harmful in the respiratory box, and the equivalent volume of casing is strengthened.Acoustical cotton surrounds a gas channel, and the heat that helps accelerating in the cavity distributes by paraphase hole.
The both sides of described audio amplifier back cover are provided with holder, and described holder is arranged on the inboard of audio amplifier back cover, are provided with the reinforcement horizontal stripe between two holders, and described reinforcement horizontal stripe is fixed described acoustical cotton.One of them effect of web beam is that acoustical cotton is fixed, and another effect is that audio amplifier back cover both sides are fixed, because voice box casing is made of plastics, and the volume ratio of audio amplifier is bigger, avoids plastic deformation to cause that the audio amplifier back cover shrinks or subsides to both sides.
Described power amplifier components comprises pcb board, power tube and press strip, the pin of described power tube is fixed on the described pcb board, described power tube is pressed on the aluminium radiating board by described press strip, is provided with mica sheet between described power tube and the described aluminium radiating board.Power tube can produce a large amount of heats in the course of the work, and power tube is close on the aluminium radiating board, and heat is distributed by aluminium radiating board better.Mica sheet plays insulating effect, does not influence the transmission of heat simultaneously.
The material of press strip is a steel plate, described press strip comprises stiff end and force side, and described stiff end, is connected with the force side after the stiff end bending on aluminium radiating board by screw, described force side acts on the power tube, and power tube is pressed on the aluminium radiating board.With the press strip bending, can make press strip produce certain elasticity, make power tube more be close to aluminium radiating board, indeformable for a long time.
Two corners, upper end of described stiff end suppress fulcrum, and described point action is on aluminium radiating board.Being provided with of fulcrum can make the elasticity of press strip better, and the force side produces stronger effect to power tube, makes power tube more be close to aluminium radiating board.Suppress with instrument on the stiff end basis, cost is lower.
Described casing fore shell top also is provided with Horn, described Horn rear end is provided with fixed support, described fixed support comprises foot rest and panel, described panel is provided with through hole, described foot rest is fixed on casing fore shell inboard, described through hole communicates with described Horn port, and described high pitch loudspeaker is fixed on the panel.High pitch loudspeaker is fixed on earlier on the fixed support, then fixed support is fixed on casing fore shell inboard, and it is simple in structure, installs very convenient.
Described casing fore shell inboard is provided with bearing, and described foot rest is by on the described bearing of screw.
Compared with prior art, the utility model has the advantages that active audio amplifier is when work, power amplifier components can produce very big heat, part heat distributes by aluminium radiating board, another part heat is dispersed in the cavity, when active audio amplifier was worked, the vibrations of woofer led out another part heat that power amplifier components produced by paraphase hole, had further accelerated distributing of power amplifier components heat.
Description of drawings
Fig. 1 is a cutaway view of the present utility model;
Fig. 2 is a casing back cover structure chart of the present utility model;
Fig. 3 is casing front casing structure figure of the present utility model;
Fig. 4 is a front view of the present utility model;
Fig. 5 is a power amplifier components mechanism map of the present utility model;
Fig. 6 is a press strip structure chart of the present utility model;
Fig. 7 is the enlarged drawing of A among Fig. 5.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
A kind of active audio amplifier, comprise casing fore shell 1 and casing back cover 2, casing fore shell 1 is formed a cavity 3 with casing back cover 2, casing fore shell 1 top is provided with high pitch loudspeaker 4, casing fore shell 1 bottom is provided with woofer 5, on the casing back cover 2 power amplifier is installed, the audio amplifier fore shell is provided with four paraphase holes 6, wherein two paraphase holes 6 are positioned at the both sides of high pitch loudspeaker, two other paraphase hole 6 is positioned at the both sides, below of woofer 5, four paraphase holes 6 communicate with cavity 3, power amplifier comprises power amplifier components 71 and aluminium radiating board 72, power amplifier components 71 is fixed on the aluminium radiating board 72, and aluminium radiating board 72 is fixed on the casing back cover 2, and power amplifier components 71 extend in the cavity 3.
Casing back cover 2 inboards are provided with acoustical cotton 8, and acoustical cotton 8 surrounds a gas channel 9 behind power amplifier components 71, and gas channel 9 communicates with four paraphase holes 6 respectively.
The both sides of audio amplifier back cover 2 are provided with holder 10, and holder 10 is arranged on the inboard of audio amplifier back cover 2, are provided with between two holders 10 to strengthen horizontal stripe 11, strengthen horizontal stripe 11 acoustical cotton 8 is fixed.
The material of press strip 713 is a steel plate, press strip 713 comprises stiff end 7131 and force side 7132, stiff end 7131 is fixed on the aluminium radiating board 72 by screw 7133, be connected with the application of force 7132 ends after stiff end 7131 bendings, force side 7132 acts on the power tube 712, and power tube 712 is pressed on the aluminium radiating board 72.
Two corners, upper end of stiff end 7131 suppress fulcrum 7134, and fulcrum 7134 acts on the aluminium radiating board 72.
Claims (9)
1. active audio amplifier, comprise casing fore shell and casing back cover, casing fore shell and casing back cover are formed a cavity, described casing fore shell top is provided with high pitch loudspeaker, described casing fore shell bottom is provided with woofer, on the casing back cover power amplifier is installed, it is characterized in that described audio amplifier fore shell is provided with a plurality of paraphase holes, described paraphase hole communicates with described cavity, described power amplifier comprises power amplifier components and aluminium radiating board, power amplifier components is fixed on the aluminium radiating board, and aluminium radiating board is fixed on the casing back cover, and power amplifier components extend in the described cavity.
2. a kind of active audio amplifier according to claim 1 is characterized in that described paraphase hole is four, and wherein two paraphase holes are positioned at the both sides of high pitch loudspeaker, and two other paraphase hole is positioned at the both sides, below of woofer.
3. a kind of active audio amplifier according to claim 2 is characterized in that described casing back cover inboard is provided with acoustical cotton, and described acoustical cotton surrounds a gas channel behind power amplifier components, and described gas channel communicates with described four paraphase holes respectively.
4. a kind of active audio amplifier according to claim 3, the both sides that it is characterized in that described audio amplifier back cover are provided with holder, described holder is arranged on the inboard of audio amplifier back cover, is provided with the reinforcement horizontal stripe between two holders, and described reinforcement horizontal stripe is fixed described acoustical cotton.
5. a kind of active audio amplifier according to claim 4, it is characterized in that described power amplifier components comprises pcb board, power tube and press strip, the pin of described power tube is fixed on the described pcb board, described power tube is pressed on the aluminium radiating board by described press strip, is provided with mica sheet between described power tube and the described aluminium radiating board.
6. a kind of active audio amplifier according to claim 5, the material that it is characterized in that described press strip is a steel plate, press strip comprises stiff end and force side, described stiff end by screw on aluminium radiating board, be connected with the force side after the stiff end bending, described force side acts on the power tube, and power tube is pressed on the aluminium radiating board.
7. a kind of active audio amplifier according to claim 6 is characterized in that two corners, upper end of described stiff end suppress fulcrum, and described point action is on aluminium radiating board.
8. a kind of active audio amplifier according to claim 1, it is characterized in that described casing fore shell top also is provided with Horn, described Horn rear end is provided with fixed support, described fixed support comprises foot rest and panel, described panel is provided with through hole, described foot rest is fixed on casing fore shell inboard, and described through hole communicates with described Horn port, and described high pitch loudspeaker is fixed on the panel.
9. a kind of active audio amplifier according to claim 8 is characterized in that described casing fore shell inboard is provided with bearing, and described foot rest is by on the described bearing of screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206556352U CN201869329U (en) | 2010-12-13 | 2010-12-13 | Active sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206556352U CN201869329U (en) | 2010-12-13 | 2010-12-13 | Active sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869329U true CN201869329U (en) | 2011-06-15 |
Family
ID=44140471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206556352U Expired - Lifetime CN201869329U (en) | 2010-12-13 | 2010-12-13 | Active sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869329U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026053A (en) * | 2010-12-13 | 2011-04-20 | 宁波音王集团有限公司 | Active sound box |
| CN106507230A (en) * | 2016-12-09 | 2017-03-15 | 郑文* | A kind of audio amplifier |
| CN110830875A (en) * | 2018-08-08 | 2020-02-21 | 视讯联合科技股份有限公司 | Modular integrated system |
-
2010
- 2010-12-13 CN CN2010206556352U patent/CN201869329U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026053A (en) * | 2010-12-13 | 2011-04-20 | 宁波音王集团有限公司 | Active sound box |
| CN102026053B (en) * | 2010-12-13 | 2013-07-10 | 宁波音王电声股份有限公司 | Active sound box |
| CN106507230A (en) * | 2016-12-09 | 2017-03-15 | 郑文* | A kind of audio amplifier |
| CN106507230B (en) * | 2016-12-09 | 2018-03-23 | 郑文 | A kind of audio amplifier |
| CN110830875A (en) * | 2018-08-08 | 2020-02-21 | 视讯联合科技股份有限公司 | Modular integrated system |
| CN110830875B (en) * | 2018-08-08 | 2021-06-08 | 视讯联合科技股份有限公司 | Modular integrated system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102026053B (en) | Active sound box | |
| CN102802100A (en) | Speaker module | |
| US20170111605A1 (en) | Television with built-in dual membrane resonance sound box | |
| EP1773093A4 (en) | Speaker system, and speaker cluster system | |
| CN201869329U (en) | Active sound box | |
| CN205142508U (en) | Loudspeaker box | |
| CN105072520B (en) | Cambered surface screen high-fidelity combination sound box | |
| CN214228470U (en) | Sound production unit, sound production module and earphone | |
| CN206042355U (en) | Ball top high pitch loudspeaker | |
| CN202957969U (en) | Soundbox | |
| CN202713597U (en) | Magnetic circuit system and moving-coil electroacoustic transducer containing magnetic circuit system | |
| CN102761797B (en) | Inverted sound box structure | |
| CN105554597B (en) | Mirror type low frequency radiation device bar speaker | |
| JP6256452B2 (en) | Speaker cabinet and speaker system using them | |
| CN204810518U (en) | Sound box | |
| CN104113799B (en) | Multipoint excitation source speaker with radiator structure | |
| CN210579174U (en) | Stereo pull rod sound equipment with high frequency loudspeaker unit | |
| CN103260107A (en) | Loudspeaker box | |
| CN2689633Y (en) | Planar loundspeaker boxes | |
| CN203136149U (en) | Ultrathin ultrahigh-pitch plane belt-type loudspeaker | |
| CN101707731A (en) | Array transmission line active vehicle-mounted sound system | |
| CN217116321U (en) | Sound box and sound equipment | |
| CN205812337U (en) | A kind of flat panel TV audio amplifier using support pendulum position | |
| CN219761226U (en) | Large sound box for sound and video entertainment | |
| CN220173366U (en) | Novel flat panel loudspeaker box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110615 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |