CN218830634U

CN218830634U - Power amplifier with protection structure

Info

Publication number: CN218830634U
Application number: CN202223421270.9U
Authority: CN
Inventors: 梁健锋
Original assignee: Enping Aiheng Electronics Co ltd
Current assignee: Enping Aiheng Electronics Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-04-07
Anticipated expiration: 2032-12-17

Abstract

The utility model discloses a take protective structure's power amplifier relates to audio equipment technical field. Including heat dissipation aluminum alloy housing, there is digital power amplifier module through the screw installation in the heat dissipation aluminum alloy housing, thermal conductive plate is installed to heat dissipation aluminum alloy housing's interior bottom, and thermal conductive plate's another side and digital power amplifier module laminate mutually, face lid is all installed through the screw to both sides around the heat dissipation aluminum alloy housing. This take protective structure's power amplifier is equipped with in the both sides of shell and inhales the shake chamber, and inhale the outside in shake chamber and wrap up the aluminum alloy in proper order and bordure and the silica gel foaming board, and the lower part that the aluminum alloy was bordured has still set up the stabilizer blade of taking buffer structure, is difficult for making the equipment landing, when shaking or falling because of the accident, the multiple protection architecture of setting can carry out good shock absorption antidetonation to the power amplifier, anti impact performance is good, the security of internal circuit has effectively been ensured, it is impaired because of the accident to reduce, and service life is prolonged.

Description

Power amplifier with protection structure

Technical Field

The utility model relates to an audio equipment technical field specifically is a take protective structure's power amplifier.

Background

The power amplifier is commonly called as a loudspeaker and is used for amplifying weak signals from a sound source or a preceding amplifier so as to generate enough current to drive a loudspeaker to play back sound, and different power amplifiers are different in internal signal processing, circuit design and production process due to consideration of power, impedance, distortion, dynamics and different use ranges and control and adjustment functions.

At present power amplifier mainly develops to the functionality, and it has the reduction audio, increases advantages such as stereoplasm, but in the in-service use process, power amplifier can produce great vibrations when using, when placing the use on some more smooth planes, the power amplifier chance takes place the problem of displacement along with vibrations, if do not have other objects to block the time, can take place to break dangerous, for this we propose a take protective structure's power amplifier to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a take protective structure's power amplifier to solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take protective structure's power amplifier, includes heat dissipation aluminum alloy shell, there is digital power amplifier module through the screw installation in the heat dissipation aluminum alloy shell, heat conduction board is installed to heat dissipation aluminum alloy shell's interior bottom, and the another side and the digital power amplifier module of heat conduction board laminate mutually, the face lid is all installed through the screw in both sides around the heat dissipation aluminum alloy shell, the both sides of heat dissipation aluminum alloy shell are equipped with inhales the shake chamber, and inhale the outside parcel in shake chamber and have aluminum alloy bordure, the outside that the aluminum alloy was bordured is pasted and is had silica gel foaming board, the lower part that the aluminum alloy was bordured is equipped with the stabilizer blade, and is provided with the rubber slab in the stabilizer blade.

Furthermore, the inner walls of the two sides of the heat dissipation aluminum alloy shell are provided with clamping grooves, and the two ends of the digital power amplifier module are positioned in the clamping grooves.

Furthermore, a rubber pad is arranged in the clamping groove and is arranged between the clamping groove and the digital power amplifier module.

Furthermore, a heat-conducting silica gel sheet is attached to the bottom of the digital power amplifier module, and the heat-conducting silica gel sheet is arranged between the digital power amplifier module and the heat conducting plate.

Furthermore, a function key part is arranged on the front side of the digital power amplifier module, and the function key part is exposed outwards from a face cover positioned on the front side of the heat dissipation aluminum alloy shell.

Furthermore, the rear side of the digital power amplifier module is provided with a connecting port part, and the connecting port part is exposed outwards from a face cover positioned at the rear side of the heat dissipation aluminum alloy shell.

Compared with the prior art, the utility model provides a take protective structure's power amplifier possesses following beneficial effect:

this take protective structure's power amplifier is equipped with in the both sides of shell and inhales the shake chamber, and inhale the outside in shake chamber and wrap up the aluminum alloy in proper order and bordure and the silica gel foaming board, and the lower part that the aluminum alloy was bordured has still set up the stabilizer blade of taking buffer structure, is difficult for making the equipment landing, when shaking or falling because of the accident, the multiple protection architecture of setting can carry out good shock absorption antidetonation to the power amplifier, anti impact performance is good, the security of internal circuit has effectively been ensured, it is impaired because of the accident to reduce, and service life is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a rear view of the present invention.

In the figure: 1. a heat-dissipating aluminum alloy housing; 2. a digital power amplifier module; 3. a heat conductive plate; 4. a face cover; 5. a shock absorbing chamber; 6. aluminum alloy edge covering; 7. a silica gel foam board; 8. a support leg; 9. a rubber plate; 10. a clamping groove; 11. a rubber pad; 12. a heat-conducting silica gel sheet; 13. a function key section; 14. is connected with the port part.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model discloses a take protection architecture's power amplifier, including heat dissipation aluminum alloy shell 1, there is digital power amplifier module 2 through the screw installation in heat dissipation aluminum alloy shell 1, heat conduction plate 3 is installed to the interior bottom of heat dissipation aluminum alloy shell 1, and heat conduction plate 3's another side and digital power amplifier module 2 laminate mutually, face lid 4 is all installed through the screw to both sides around heat dissipation aluminum alloy shell 1, the both sides of heat dissipation aluminum alloy shell 1 are equipped with and inhale shake the chamber 5, and inhale the outside parcel that shakes chamber 5 and have aluminum alloy bordure 6, the outside that aluminum alloy bordures 6 is pasted and is had silica gel foaming board 7, the lower part that aluminum alloy bordures 6 is equipped with stabilizer blade 8, and is provided with rubber slab 9 in the stabilizer blade 8, is equipped with and inhales shake the chamber 5 in the both sides of shell, and inhale the outside that shake the chamber 5 and wrap up aluminum alloy bordures 6 and silica gel foaming board 7 in proper order, and the lower part that aluminum alloy bordures 6 has still set up has set up stabilizer blade 8 with buffer structure, is difficult for making equipment landing, when shaking or falling because of accident, the multiple protection architecture that sets up can carry out good shock-absorbing power amplifier, shock resistance, has effectively reduced the life-proof, has prolonged the accident.

Specifically, the inner walls of the two sides of the heat dissipation aluminum alloy shell 1 are provided with clamping grooves 10, and the two ends of the digital power amplifier module 2 are located in the clamping grooves 10.

In this embodiment, the slot 10 is used for a digital power amplifier module 2 (a power amplifier module integrating a switching power supply and a digital power amplifier, and mainly divided into a switching power supply and a digital power amplifier, the switching power supply mainly functions to convert alternating current into direct current required by the power amplifier and provide enough current, alternating current of 120/220V is firstly passed through two stages of second order filters, so as to isolate interference inside and outside the module, the 120/220V setting is completed through fuse strip lines, a ballast filter circuit converts alternating current commercial power into direct current of about 300V, a DC/DC converter outputs various low-voltage direct currents required by the power amplifier and realizes isolation, the power amplifier mainly completes amplification of audio signals and provides a protection function of a load of the power amplifier, an input analog audio signal is firstly preprocessed and then sent to an error amplifier together with an audio signal fed back, an audio error signal is output, a triangular wave generator generates a high-linearity triangular wave signal and sends the high-linearity triangular wave signal to a comparator together with the audio error signal to generate a PWM signal, and sends the PWM signal to a driver for pre-amplification, and dead-time is inserted between driving signals to avoid loss of two field effect transistors of the same bridge arm from being conducted at the same time, and fixed through a limit screw.

Specifically, a rubber pad 11 is arranged in the clamping groove 10, and the rubber pad 11 is arranged between the clamping groove 10 and the digital power amplifier module 2.

In this embodiment, the rubber pad 11 is mainly used for fastening, sealing, shock-proof, buffering, static electricity prevention, electrical insulation, and the like.

Specifically, a heat-conducting silica gel sheet 12 is attached to the bottom of the digital power amplifier module 2, and the heat-conducting silica gel sheet 12 is interposed between the digital power amplifier module 2 and the heat conducting plate 3.

In this embodiment, the heat conducting plate 3, also called as a temperature equalizing plate or a super heat conducting plate, has the same function and working principle as a heat conducting pipe, and is a heat conducting medium material synthesized by a special process by using silica gel as a base material and adding various auxiliary materials such as metal oxides and the like as an evaporation condensation cycle of a working fluid enclosed in a plate-shaped cavity to enable the plate-shaped cavity to have a characteristic of rapid temperature equalization, thereby having a function of rapid heat conduction and heat diffusion, filling a gap, getting through a heat channel between a heating part and a heat radiating part, effectively improving heat transfer efficiency, and simultaneously playing roles of insulation, shock absorption, sealing and the like.

Specifically, the front side of the digital power amplifier module 2 is provided with a function key part 13, and the function key part 13 is exposed outwards from the face cover 4 positioned on the front side of the heat dissipation aluminum alloy shell 1.

In this embodiment, the function key part 13 is a conventional structure of the power amplifier, and is mainly used for operating the power amplifier.

Specifically, the rear side of the digital power amplifier module 2 is provided with a connecting port portion 14, and the connecting port portion 14 is exposed from the face cover 4 located at the rear side of the heat dissipation aluminum alloy casing 1.

In this embodiment, the connection port 14 is a conventional structure of the power amplifier, and is mainly used for connecting other audio devices and power supplies.

When using, be equipped with in the both sides of shell and inhale shake chamber 5, and inhale the outside of shake chamber 5 and wrap up aluminum alloy in proper order and bordure 6 and silica gel foaming board 7, and the lower part that the aluminum alloy bordured 6 has still set up the stabilizer blade 8 of taking buffer structure, be difficult for making equipment landing, when shaking or falling because of the accident, the multiple protection architecture of setting can carry out good shock absorption antidetonation to the power amplifier, anti impact performance is good, internal circuit's security has effectively been ensured, it is impaired because of the accident to reduce, and service life is prolonged.

To sum up, this take protective structure's power amplifier is equipped with in the both sides of shell and inhales shake chamber 5, and inhale the outside of shake chamber 5 and wrap up the aluminum alloy in proper order and bordure 6 and silica gel foaming board 7, and the lower part that the aluminum alloy bordured 6 has still set up the stabilizer blade 8 of taking buffer structure, is difficult for making the equipment landing, when shaking or falling because of the accident, the multiple protection architecture that sets up can carry out good shock absorption antidetonation to the power amplifier, and anti impact performance is good, has effectively ensured the security of internal circuit, reduces because of the accident impaired, has prolonged life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take protective structure's power amplifier, includes heat dissipation aluminum alloy shell (1), its characterized in that: there are digital power amplifier module (2) through the screw mounting in heat dissipation aluminum alloy shell (1), heat conduction board (3) are installed to the interior bottom of heat dissipation aluminum alloy shell (1), and the another side and digital power amplifier module (2) of heat conduction board (3) laminate mutually, face lid (4) are all installed through the screw to both sides around heat dissipation aluminum alloy shell (1), the both sides of heat dissipation aluminum alloy shell (1) are equipped with and inhale shake chamber (5), and inhale the outside parcel that shakes chamber (5) and have aluminum alloy bordure (6), the outside that aluminum alloy bordured (6) is pasted and is had silica gel foaming board (7), the lower part that aluminum alloy bordured (6) is equipped with stabilizer blade (8), and is provided with rubber slab (9) in stabilizer blade (8).

2. The power amplifier with protective structure as claimed in claim 1, wherein: the heat dissipation aluminum alloy shell (1) is characterized in that clamping grooves (10) are formed in the inner walls of the two sides of the heat dissipation aluminum alloy shell, and the two ends of the digital power amplifier module (2) are located in the clamping grooves (10).

3. The power amplifier with protection structure as claimed in claim 2, wherein: a rubber pad (11) is arranged in the clamping groove (10), and the rubber pad (11) is arranged between the clamping groove (10) and the digital power amplifier module (2).

4. The power amplifier with protective structure as claimed in claim 1, wherein: the bottom of the digital power amplifier module (2) is attached with a heat conduction silica gel sheet (12), and the heat conduction silica gel sheet (12) is arranged between the digital power amplifier module (2) and the heat conducting plate (3).

5. The power amplifier with protective structure as claimed in claim 1, wherein: the front side of the digital power amplifier module (2) is provided with a function key part (13), and the function key part (13) is exposed outwards from a face cover (4) positioned on the front side of the heat dissipation aluminum alloy shell (1).

6. The power amplifier with protective structure as claimed in claim 1, wherein: the rear side of the digital power amplifier module (2) is provided with a connecting port part (14), and the connecting port part (14) is exposed outwards from a face cover (4) positioned on the rear side of the heat dissipation aluminum alloy shell (1).