CN219592584U

CN219592584U - Audio power amplifier

Info

Publication number: CN219592584U
Application number: CN202320440284.0U
Authority: CN
Inventors: 余业祺
Original assignee: Zefeng Audio Frequency Technology Shenzhen Co ltd
Current assignee: Zefeng Audio Frequency Technology Shenzhen Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-08-25
Anticipated expiration: 2033-03-10

Abstract

The utility model discloses an audio power amplifier which comprises a front shell, a rear shell and screws, wherein the front shell is provided with a top plate and a side plate, the top plate and the side plate are fixedly connected with the top plate, a clamping block is arranged, a clamping hook is arranged between the clamping hook and the top plate, a clamping groove is formed between the clamping hook and the top plate, the rear shell is provided with an upper end shell and a bottom shell, the upper end shell is provided with a clamping plate and a side end plate, the side end plate is provided with a fixing hole, the bottom shell is provided with a through hole, the clamping plate is inserted into the clamping groove and clamped by the clamping hook, the side plate is provided with a positioning plate, the positioning plate is provided with a positioning hole, a first positioning strip and a second positioning strip, the first positioning strip extends upwards to the top plate, the second positioning strip extends downwards to form a bottom plate, the upper end shell is connected with the bottom shell to form a slot, the bottom plate is connected with the bottom plate, the positioning plate extends into the slot and is jointed with the side end plate until the fixing hole, the through hole is communicated with the positioning hole, the positioning hole and the through hole, the screw is fixedly connected with the front shell and the rear shell, and the positioning plate are compact and stable in structure, and are not easy to disassemble and maintain, and have long service life.

Description

Audio power amplifier

Technical Field

The utility model relates to the technical field of sound devices, in particular to an audio power amplifier.

Background

Audio power amplifiers are currently devices that reconstruct an input audio signal at an output element that produces sound, with the reconstructed signal having desirable volume and power levels—being faithful, efficient and low-distortion. The audio frequency range is about 20Hz to 20kHz, so the amplifier must have a good frequency response in this range (smaller when driving a band limited speaker, such as a woofer or tweeter). According to different applications, the power level is very different from milliwatt level of the earphone to several watts of TV or PC audio, and then to tens of watts of mini home stereo and car audio, until the power is higher than hundreds of watts of home and commercial audio systems, and the power is so high that the sound requirement of the whole cinema or auditorium can be met, but the shell of the existing audio power amplifier is simple, the structure is not compact and stable enough, the structure is easy to damage, the disassembly and maintenance are inconvenient, and the service life is short.

Disclosure of Invention

In order to solve the above problems, the present utility model proposes an audio power amplifier.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an audio power amplifier, which comprises a front shell, a rear shell and a screw, wherein the front shell is provided with a top plate and a side plate, the top plate and the side plate are fixedly connected with the top plate, a clamping block is arranged on the clamping block, a clamping groove is formed between the clamping block and the top plate, the rear shell is provided with an upper end shell and a bottom shell, the upper end shell is provided with a clamping plate and a side end plate, the side end plate is provided with a fixing hole, the bottom shell is provided with a through hole, the clamping plate is inserted into the clamping groove and is clamped with the clamping groove, the side plate is provided with a positioning plate, the positioning plate is provided with a positioning hole, a first positioning strip and a second positioning strip extend upwards to the top plate, the second positioning strip extends downwards to form a bottom plate, the upper end shell is connected with the bottom plate to form a slot, and the bottom plate is connected with the bottom shell to the side end plate until the fixing hole, the through hole and the positioning hole are communicated with the fixing hole, and the front shell and the screw are connected.

Further, the front shell comprises a panel, the panel is provided with a straight plate and an inclined plate, the inclined plate is connected to the lower end face of the straight plate, and the side plate is connected with the straight plate and the inclined plate.

Further, the audio power amplifier comprises a screen board, the straight board is provided with a frame groove, and the screen board is fixedly installed in the frame groove.

Further, the audio power amplifier comprises a first circuit board, the rear shell is provided with a containing cavity, and the first circuit board is fixedly installed in the containing cavity.

Further, the audio power amplifier comprises a second circuit board which is fixedly arranged in the accommodating cavity.

Further, the audio power amplifier comprises a third circuit board fixedly mounted in the accommodating cavity.

Further, the back shell is provided with a back plate, and the back plate is provided with an interface which is used for external connection.

Compared with the prior art, the utility model provides an audio power amplifier, which has the following beneficial effects: the embedded ceiling loudspeaker box provided by the utility model has the advantages of stable and firm structure, and: through preceding shell and backshell sectional type structure fixed, make holistic installation stability better, the backshell has the upper and lower end design of adoption, and convenient to maintain dismantles and maintains, link together preceding shell and backshell stability through fixture block and locating plate, compact structure is stable, is difficult to damage, convenient to detach maintains, long service life.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the utility model and do not constitute a limitation to the utility model, and in which:

fig. 1 is a perspective view of an audio power amplifier according to the present utility model;

FIG. 2 is another perspective view of an audio power amplifier according to the present utility model;

FIG. 3 is a schematic diagram showing an exploded structure of an audio power amplifier according to the present utility model;

FIG. 4 is a schematic diagram showing a second angle exploded structure of an audio power amplifier according to the present utility model;

FIG. 5 is a schematic diagram showing a third angle exploded structure of an audio power amplifier according to the present utility model;

FIG. 6 is an enlarged view at A;

fig. 7 is an enlarged view at B.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the utility model provides an audio power amplifier, the audio power amplifier includes a front shell 1, a rear shell 2 and a screw 3, the front shell 1 is provided with a top plate 10 and a side plate 11, the top plate 10 and the side plate 11 are fixedly connected with the top plate 10 and are provided with a clamping block 17, the clamping block 17 is provided with a clamping hook 18, a clamping groove 19 is formed between the clamping hook 18 and the top plate 10, the rear shell 2 is provided with an upper end shell 24 and a bottom shell 26, the upper end shell 24 is provided with a clamping plate 28 and a side end plate 29, the side end plate 29 is provided with a fixing hole 30, the bottom shell 26 is provided with a through hole 31, the clamping plate 28 is inserted into the clamping groove 19 and forms a clamping connection with the clamping hook 18, the side plate 11 is provided with a positioning plate 20, the positioning plate 20 is provided with a positioning hole 21, a first positioning strip 22 and a second positioning strip 23 extend upwards to the top plate 10, the second positioning strip 23 extends downwards to form a bottom plate 12, the upper end shell 24 and the bottom shell 26 are joined with the bottom plate 26 to form a bottom plate 12, the bottom plate 26 is joined with the bottom plate 26 and the through hole 33 and the through hole 31 is connected with the through hole 31 and the fixing hole 30, and the through hole 31 is connected with the fixing hole 31 and the front end plate 2.

In this embodiment, the audio power amplifier is formed by adopting a two-section splicing structure of the front shell 1 and the rear shell 2, the front shell 1 is in an integrated structure, the rear shell 2 is in a splicing combined structure of the upper end shell 24 and the bottom shell 26, the structure is convenient for disassembling and maintaining internal components, if the internal components are damaged, the internal components can be directly disassembled and replaced, the connection structure is easy to observe, overhaul and maintain, the top plate 10 and the side plate 11 of the front shell 1 and the upper end shell 24 and the bottom shell 26 of the rear shell 2 form a connection structure, the clamping plate 28 arranged on the upper end shell 24 is inserted into the clamping groove 19 of the clamping block 17 on the top plate 10, the top plate 10 and the upper end shell 24 form a clamping connection, the positioning plate 20 on the side plate 11 is connected with the rear shell 2, the rear shell 2 is formed by the upper end shell 24 and the bottom shell 26, the fixing hole 30 on the side end plate 29 is aligned with the through hole 31 on the side plate 26, at this moment, the slot 33 is formed between the side end plate 29 and the bottom shell 26, the positioning plate 20 is inserted into the slot 33, the three holes are aligned, the fixing hole 30, the through hole 31 and the positioning hole 21 are aligned, the screw 3 passes through the fixing hole 30, the three holes 31 and the three holes 21 and the positioning hole 29 and the side plate 26 are tightly screwed, the power amplifier is firmly connected, the power amplifier is stable, and the service life of the front shell is prolonged, and the power amplifier is stable, and the life of the front is stable.

Further, the front case 1 includes a panel 9, the panel 9 is provided with a straight plate 13 and an inclined plate 14, the inclined plate 14 is joined to the lower end surface of the straight plate 13, and the side plate 11 is joined to the straight plate 13 and the inclined plate 14.

In this embodiment, the panel 9 is formed by splicing the straight plate 13 and the inclined plate 14, so that the panel 9 is more attractive, the picking hand feeling of the audio power amplifier can be improved, the cutting hand feeling is reduced, and the user can conveniently pick and place the panel.

Further, the audio power amplifier comprises a screen 7, the straight plate 13 is provided with a frame groove 16, and the screen 7 is fixedly arranged in the frame groove 16.

In the present embodiment, the screen 7 can display parameters of the audio power amplifier.

Further, the audio power amplifier comprises a first circuit board 4, the rear shell 2 is provided with a containing cavity 25, and the first circuit board 4 is fixedly installed in the containing cavity 25.

In the present embodiment, the first circuit board 4 is a wireless microphone receiver.

Further, the audio power amplifier comprises a second circuit board 5, and the second circuit board 5 is fixedly installed in the accommodating cavity 25.

In the present embodiment, the second circuit board 5 is an audio/video input board.

Further, the audio power amplifier comprises a third circuit board 6, and the third circuit board 6 is fixedly installed in the accommodating cavity 25.

In the present embodiment, the third circuit board 6 is an audio amplification output board.

Further, the back shell 2 is provided with a back plate 27, the back plate 27 is provided with an interface 32, and the interface 32 is used for external connection.

In this embodiment, the back plate 27 is provided with various interfaces 32 including a wireless microphone receiver interface, an audio/video input interface, and an audio amplification output interface.

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

Claims

1. The utility model provides an audio power amplifier, its characterized in that, audio power amplifier includes preceding shell, backshell and screw, preceding shell is equipped with roof and curb plate, the roof with curb plate fixed connection the roof is equipped with the fixture block, the fixture block is equipped with the trip, the trip with form the draw-in groove between the roof, the backshell is equipped with upper end shell and drain pan, the upper end shell is equipped with cardboard and side end plate, the side end plate is equipped with the fixed orifices, the drain pan is equipped with the through-hole, the cardboard inserts in the draw-in groove and with the trip forms the block, the curb plate is equipped with the locating plate, the locating plate is equipped with the locating hole, first locating strip and second locating strip, first locating strip upwards extends to the roof, second locating strip downwardly extending forms the bottom plate, the upper end shell with the bottom plate with the drain pan joint forms the slot, the bottom plate with the side end plate stretches into in the slot and with until the fixed orifices the through-hole with the locating hole is switched on mutually, the through-hole with the through-hole is connected to the shell.

2. The audio power amplifier of claim 1, wherein the front housing comprises a panel provided with a straight plate and a sloping plate, the sloping plate being engaged at a lower end face of the straight plate, the side plate being engaged with the straight plate and the sloping plate.

3. The audio power amplifier of claim 2, wherein the audio power amplifier comprises a bezel, the straight plate having a bezel, the bezel being fixedly mounted within the bezel.

4. The audio power amplifier of claim 1, wherein the audio power amplifier comprises a first circuit board, the rear housing having a receiving cavity, the first circuit board being fixedly mounted within the receiving cavity.

5. The audio power amplifier of claim 4, comprising a second circuit board fixedly mounted within the receiving cavity.

6. The audio power amplifier of claim 5, comprising a third circuit board fixedly mounted within the receiving cavity.

7. The audio power amplifier of claim 1, wherein the back housing is provided with a back plate, the back plate being provided with an interface for external connection.