CN206790444U - A kind of digital audio frequency power amplifier - Google Patents
A kind of digital audio frequency power amplifier Download PDFInfo
- Publication number
- CN206790444U CN206790444U CN201720591010.6U CN201720591010U CN206790444U CN 206790444 U CN206790444 U CN 206790444U CN 201720591010 U CN201720591010 U CN 201720591010U CN 206790444 U CN206790444 U CN 206790444U
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- power amplifier
- frequency power
- audio frequency
- digital audio
- front panel
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Abstract
The utility model provides a kind of digital audio frequency power amplifier, including：Cabinet and multiple amplification channels；The cabinet includes bottom plate, cover, front panel and rear board；The bottom plate includes bottom wall, and it is connected to the two side of bottom wall two opposite sides, the bottom wall, and two the side wall enclose and set to form mounting groove, multiple amplification channels are arranged in the mounting groove independently of each other, and the cover is arranged on the top of the bottom plate, and the front panel is connected to the front end of the cover and the bottom plate, the rear board is connected to the rear end of the cover and the bottom plate, and each described amplification channel is equipped with independent power supply.Digital audio frequency power amplifier of the present utility model can effectively avoid occurring some channels operation exception at work, influence other passages, cause power amplifier to enter guard mode.
Description
Technical field
It the utility model is related to audio frequency apparatus technical field, more particularly to a kind of audio-frequency power amplifier.
Background technology
Audio-frequency power amplifier refers to equipment most basic in sound system, and its task is from the faint of signal source
Electric signal is amplified sends sound with drive the speaker.Abbreviation power amplifier, it is commonly called as " sound amplifier ".The effect of audio-frequency power amplifier
It is the small signals amplification from source of sound or pre-amplifier, promotes audio amplifier sound reproduction；And source of sound equipment is inputted fainter
After signal is amplified, produces sufficiently large electric current and be pushed to the playback that loudspeaker carries out sound.
Audio-frequency power amplifier is generally used for the stage performance at scene, however, existing audio-frequency power amplifier easily goes out
The problem of some existing amplification channel breaks down, so as to cause whole audio-frequency power amplifier to work.
Utility model content
The utility model is independent of each other between providing a kind of each amplification channel, will not also cause power supply immediate current occur
Overcurrent protection caused by excessive, it is abnormal so as to effectively avoid occurring at work some channels operation, other passages are influenceed, are drawn
Play the digital audio frequency power amplifier that machine enters protection deadlock state.
The technical solution adopted in the utility model is：A kind of digital audio frequency power amplifier, it includes：Cabinet, Yi Jiduo
Individual amplification channel；The cabinet includes bottom plate, cover, front panel and rear board；The bottom plate includes bottom wall, and connection
In the two side of bottom wall two opposite sides, the bottom wall, and two side walls are enclosed and set to form mounting groove, multiple amplification channels
It is arranged on independently of each other in the mounting groove, the cover is arranged on the top of the bottom plate, and the front panel is connected to institute
The front end of cover and the bottom plate is stated, the rear board is connected to the rear end of the cover and the bottom plate, puts described in each
Big passage is equipped with independent power supply.
Further, aluminium chassis are installed, the both ends of the aluminium chassis are provided with wind net on the front panel.
Further, the centre position of the front panel is provided with lamp plate, and switch, the switch are provided with the lamp plate
Also cross the front panel and the aluminium chassis.
Further, the front end of two side walls, which is separately installed with, hands in hand.
Further, each described amplification channel includes shell, amplification module and two fans；The amplification mould
Block and two fans are installed in the shell, and the amplification module is folded between two fans.
Further, the front end face of the shell and rear end face offer heat emission hole, the front panel and it is described behind
The heat emission hole is corresponded on plate and offers through hole, the wind net is corresponding with the through hole on the front panel.
Further, power socket, overcurrent protection are installed between the rear end of multiple amplification channels and the rear board
Device, circuit board and output seat；The power socket, the overcurrent protector, the circuit board and it is described output seat with
Multiple amplification channels are electrically connected with.
Compared to prior art, digital audio frequency power amplifier of the present utility model is by by multiple amplification channel phases
Mutually it is separately mounted in the cabinet so that it is independent of each other between multiple amplification channels, and it is easy for removal and installation.This
Outside, each described amplification channel is equipped with independent power supply, for the corresponding amplification channel power supply；Therefore, when multiple institutes
State amplification channel and be all operated in high-power, during big load condition, will not interact between multiple amplification channels, also will not
Cause power supply occur immediate current it is excessive caused by overcurrent protection, so as to effectively avoiding the digital audio frequency power amplifier from working
Middle deadlock.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following
Embodiment is used to explain the utility model together, but should not form to limitation of the present utility model.In the accompanying drawings,
Fig. 1：The stereogram of the utility model digital audio frequency power amplifier；
Fig. 2：The cut-away view of the utility model digital audio frequency power amplifier；
Fig. 3：The three-dimensional exploded view of the utility model digital audio frequency power amplifier；
Fig. 4：Another stereogram of the utility model digital audio frequency power amplifier；
Fig. 5：Another cut-away view of the utility model digital audio frequency power amplifier.
Each component names and its label
| Cabinet 1 | Bottom plate 10 | Bottom wall 101 | Side wall 102 |
| Mounting groove 103 | Cover 11 | Front panel 12 | Rear board 13 |
| Amplification channel 2 | Shell 20 | Heat emission hole 201 | Amplification module 21 |
| Power supply 210 | Aluminium chassis 3 | Wind net 4 | Through hole 5 |
| Lamp plate 6 | Switch 7 | Hand in hand 8 | Fan 9 |
| Power socket 14 | Overcurrent protector 15 | Circuit board 16 | Export seat 17 |
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
As depicted in figs. 1 and 2, digital audio frequency power amplifier of the present utility model includes cabinet 1 and installed in cabinet
Multiple amplification channels 2 in 1；Wherein, multiple amplification channels 2 are installed independently of each other, are independent of each other, and are easily installed and are dismantled more
Change.
As shown in Figures 3 to 5, cabinet 1 includes bottom plate 10, cover 11, front panel 12 and rear board 13；Wherein, bottom plate
10 include bottom wall 101, and are connected to the two side 102 of the two opposite sides of bottom wall 101, bottom wall 101, and two side 102 and enclose and set
Mounting groove 103 is formed, multiple amplification channels 2 are arranged in mounting groove 103 independently of each other, and cover 11 is arranged on the top of bottom plate 10
Portion, front panel 12 are connected to the front end of cover 11 and bottom plate 10, and rear board 13 is connected to the rear end of cover 11 and bottom plate 10, so as to
Multiple amplification channels 2 are encapsulated in cabinet 1.Further, aluminium chassis 3, the both ends peace of aluminium chassis 3 are installed on front panel 12
Equipped with wind net 4, to radiate.Gap be present between the front end of multiple amplification channels 2 and front panel 12；Multiple amplification channels 2
Gap also be present with rear board 13 in rear end.The centre position of front panel 12 is provided with lamp plate 6, and switch 7 is provided with lamp plate 6, is opened
7 are closed also cross front panel 12 and aluminium chassis 3；And the front end of two side 102 is separately installed with and hands in hand 8.It is more in the present embodiment
Individual amplification channel is four, it is possible to understand that, multiple amplification channels also can be three, two or more than four, not with this
It is limited.
Each amplification channel 2 includes shell 20, the fan 9 of amplification module 21 and two；Wherein, amplification module 21 with
Two fans 9 are installed in shell 20, and amplification module 21 is folded between two fans 9, effectively improves radiating efficiency.Shell 20
Front end face and rear end face offer heat emission hole 201, corresponding to heat emission hole 201 on front panel 12 and rear board 13 offers through hole
5, wherein, wind net 4 is corresponding with the through hole 5 on front panel 12；The hot gas of two fans 9 blowout is outside by heat emission hole 201 and through hole 5
Diffusion.In addition, each piece of amplification module 21 is equipped with independent power supply 210, it is that corresponding amplification module 21 is independently-powered；Therefore,
Each amplification channel 2 is that independent power supply 210 is powered, when four amplification channels 2 are all operated in high-power, big load condition
When, will not interact between four amplification channels 2, will not also cause power supply occur immediate current it is excessive caused by excessively stream protect
Shield, so as to effectively avoid the digital audio frequency power amplifier from crashing at work.
Power socket 14, overcurrent protector 15, circuit board are installed between the rear end of four amplification channels 2 and rear board 13
16 and output seat 17；Power socket 14, overcurrent protector 15, circuit board 16 and output seat 17 with four amplification channels 2
It is electrically connected with.
To sum up, digital audio frequency power amplifier of the present utility model has the advantages that：
(1) by the way that multiple amplification channels 2 are arranged in cabinet 1 independently of each other so that between multiple amplification channels 2 mutually not
Influence, and it is easy for removal and installation.
(2) each piece of amplification module 21 is equipped with power supply 210, is that corresponding amplification module 21 is independently-powered；Therefore, Mei Gefang
Big passage 2 is all that independent current source 210 is powered, when multiple amplification channels 2 be all operated in it is high-power, during big load condition, Duo Gefang
Will not be interacted between big passage 2, will not also cause power supply occur immediate current it is excessive caused by overcurrent protection, so as to effectively
The digital audio frequency power amplifier is avoided to crash at work.
(3) each amplification channel 2 is equipped with two fans 9, effectively improves radiating efficiency.
The thought created without departing from the utility model, any group is carried out to various different embodiments of the present utility model
Close, should be considered as the utility model disclosure；In range of the technology design of the present utility model, technical scheme is carried out
Any combination for the thought created without prejudice to the utility model that a variety of simple modifications and different embodiments are carried out, all should be at this
Within the protection domain of utility model.
Claims (7)
- A kind of 1. digital audio frequency power amplifier, it is characterised in that including：Cabinet (1) and multiple amplification channels (2)；It is described Cabinet (1) includes bottom plate (10), cover (11), front panel (12) and rear board (13)；The bottom plate (10) includes bottom wall (101) two side (102) of bottom wall (101) two opposite sides, the bottom wall (101), and two side walls are connected to, and (102) enclose and set to form mounting groove (103), multiple amplification channels (2) are arranged on the mounting groove (103) independently of each other Interior, the cover (11) is arranged on the top of the bottom plate (10), and the front panel (12) is connected to the cover (11) and institute The front end of bottom plate (10) is stated, the rear board (13) is connected to the rear end of the cover (11) and the bottom plate (10), each The amplification channel (2) is equipped with independent power supply (210).
- 2. digital audio frequency power amplifier as claimed in claim 1, it is characterised in that：Aluminium is installed on the front panel (12) Framework (3), the both ends of the aluminium chassis (3) are provided with wind net (4).
- 3. digital audio frequency power amplifier as claimed in claim 2, it is characterised in that：The centre position of the front panel (12) Lamp plate (6) is installed, switch (7) is installed on the lamp plate (6), the switch (7) also cross the front panel (12) with And the aluminium chassis (3).
- 4. digital audio frequency power amplifier as claimed in claim 1, it is characterised in that：The front end of two side walls (102) point It is not provided with hand in hand (8).
- 5. digital audio frequency power amplifier as claimed in claim 2, it is characterised in that：Each described amplification channel (2) is equal Including shell (20), amplification module (21) and two fans (9)；The amplification module (21) is respectively mounted with two fans (9) In the shell (20), and the amplification module (21) is folded between two fans (9).
- 6. digital audio frequency power amplifier as claimed in claim 5, it is characterised in that：The front end face of the shell (20) is with after End face offers heat emission hole (201), and corresponding to the heat emission hole (201) on the front panel (12) and the rear board (13) opens Provided with through hole (5), the wind net (4) is corresponding with the through hole (5) on the front panel (12).
- 7. digital audio frequency power amplifier as claimed in claim 1, it is characterised in that：After multiple amplification channels (2) Power socket (14), overcurrent protector (15), circuit board (16) and output seat are installed between end and the rear board (13) (17)；The power socket (14), the overcurrent protector (15), the circuit board (16) and it is described output seat (17) with Multiple amplification channels (2) are electrically connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591010.6U CN206790444U (en) | 2017-05-24 | 2017-05-24 | A kind of digital audio frequency power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591010.6U CN206790444U (en) | 2017-05-24 | 2017-05-24 | A kind of digital audio frequency power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790444U true CN206790444U (en) | 2017-12-22 |
Family
ID=60712907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720591010.6U Active CN206790444U (en) | 2017-05-24 | 2017-05-24 | A kind of digital audio frequency power amplifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN206790444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650933B (en) * | 2018-04-11 | 2019-02-11 | 名世電子企業股份有限公司 | Vacuum tube rear device |
| CN110913289A (en) * | 2019-11-22 | 2020-03-24 | 广东联晟通信科技有限公司 | DSP power amplifier device based on bluetooth broadcast |
-
2017
- 2017-05-24 CN CN201720591010.6U patent/CN206790444U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650933B (en) * | 2018-04-11 | 2019-02-11 | 名世電子企業股份有限公司 | Vacuum tube rear device |
| CN110913289A (en) * | 2019-11-22 | 2020-03-24 | 广东联晟通信科技有限公司 | DSP power amplifier device based on bluetooth broadcast |
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