CN213522261U

CN213522261U - Audio power amplifier

Info

Publication number: CN213522261U
Application number: CN202022820611.4U
Authority: CN
Inventors: 常翔洲
Original assignee: Zhengzhou Zhenghao Electronic Engineering Co ltd
Current assignee: Zhengzhou Zhenghao Electronic Engineering Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-06-22
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to the technical field of audio amplifiers, in particular to an audio power amplifier, which comprises a case and an audio amplifier body arranged at the bottom of the case, wherein the upper surface of the audio amplifier is provided with a radiating fin, a screw rod is arranged above the case in a penetrating way, a slider is arranged on the screw rod in a penetrating way, a radiating fan is arranged below the slider, a motor is arranged above one side of the case, and an output shaft of the motor is coaxially connected with the screw rod; ventilating windows are symmetrically arranged on two side walls of the case, outer frames are respectively arranged on the outer sides of the ventilating windows, openings are arranged at the tops of the outer frames, mounting frames are inserted into the openings, and dust screens are arranged in the mounting frames; a connecting rod is arranged between the ventilating window and the outer frame, and an exhaust fan is arranged at the center of the connecting rod. The utility model discloses have that the radiating effect is good, work efficiency is low high, long service life.

Description

Audio power amplifier

Technical Field

The utility model relates to an audio amplifier technical field, especially an audio power amplifier.

Background

An audio power amplifier is a device that reconstructs an incoming audio signal on a sound-producing output element, the reconstructed signal having a desired volume and power level-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 limited frequency band speaker, such as a woofer or tweeter). The power varies greatly from milliwatt level for headphones to several watts for TV or PC audio, to tens of watts for mini-home stereo and car stereo, to hundreds of watts for more powerful home and commercial sound systems, to meet the sound requirements of a movie theater or auditorium.

In the use process of the existing large-scale audio power amplifier, a large amount of heat can be generated in a case, so that the heat dissipation performance is poor, most of the existing heat dissipation devices for the audio power amplifier adopt fans to blow and dissipate heat at fixed positions, so that the heat dissipation effect in the case is poor, the service life of the audio amplifier is seriously reduced due to excessive heat, the audio power amplifier is difficult to continuously and efficiently work, and the short circuit can be caused in the interior of the audio power amplifier in serious cases; and adopt the dust screen to prevent that the dust from getting into quick-witted incasement in the radiating hole usually, the dust screen among the prior art often dismantles inconveniently, leads to unable change, washs inconvenient problem, when dust screen department is full of dust, influences the heat dissipation of ventilation window again.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of poor heat dissipation effect, low working efficiency and short service life of the audio power amplifier in the prior art.

The utility model has the following concrete scheme:

designing an audio power amplifier, which comprises a case and an audio amplifier body arranged at the bottom of the case, wherein a radiating fin is arranged on the upper surface of the audio amplifier, a screw rod is arranged above the case in a penetrating manner, a sliding block is arranged on the screw rod in a penetrating manner, a radiating fan is arranged below the sliding block, a motor is arranged above one side of the case, and an output shaft of the motor is coaxially connected with the screw rod;

ventilating windows are symmetrically arranged on two side walls of the case, outer frames are respectively arranged on the outer sides of the ventilating windows, an opening is arranged at the top of each outer frame, an installation frame is inserted into each opening, and a dust screen is arranged in each installation frame;

a connecting rod is arranged between the ventilating window and the outer frame, and an exhaust fan is arranged at the center of the connecting rod.

Preferably, a handle is arranged at the top of the mounting frame.

Preferably, a socket is arranged on one side of the mounting frame, and the dustproof net is inserted into the mounting frame through the socket.

Preferably, a groove is formed in the bottom of the outer frame, and the bottom of the mounting frame is arranged in the groove.

Preferably, the bottom of the case is provided with support legs, and the bottoms of the support legs are provided with non-slip mats.

Preferably, a rubber pad is arranged between the bottom of the audio amplifier body and the case.

Preferably, a temperature controller is arranged in the case, and the temperature controller is electrically connected with the cooling fan and the exhaust fan.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a set up installing frame and socket, can dispel the heat that the audio amplifier of quick-witted incasement portion produced through the ventilation window, the dust screen can prevent dust to quick incasement portion, prevents that the dust from getting into quick-witted incasement portion and influencing audio amplifier's radiating effect, can hold the handle and take the installing frame out from the opening part, takes the dust screen out from the socket department, realizes the change and the washing to the dust screen, and is convenient fast.

2. The utility model discloses a set up mobilizable radiator fan, evenly dispel the heat to the heat that the audio amplifier body produced, improve the radiating effect and the life of audio amplifier body.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the installation structure of the installation frame and the dust screen;

FIG. 3 is a schematic structural view of the outer frame;

the reference numbers in the figures are: the novel air conditioner comprises a case 1, a motor 2, a sliding block 3, a heat radiating fan 4, a lead screw 5, a heat radiating fin 6, an audio amplifier 7, a ventilating window 8, a handle 9, an outer frame 10, an installation frame 11, a connecting rod 12, an exhaust fan 13, a socket 14, a dust screen 15, a groove 16, an anti-slip pad 17, a rubber pad 18, supporting legs 19 and openings 20.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

An audio power amplifier is disclosed, as shown in fig. 1 to fig. 3, and comprises a case 1 and an audio amplifier body 7 arranged at the bottom of the case 1, wherein a heat sink 6 is arranged on the upper surface of the audio amplifier body 7, a screw 5 is arranged above the case 1 in a penetrating manner, a slider 3 is arranged on the screw 5 in a penetrating manner, a heat sink fan 4 is arranged below the slider 3, a motor 2 is arranged above one side of the case 1, and an output shaft of the motor 2 is coaxially connected with the screw 5; the heat radiation fan 4 can move left and right along the screw rod 5 along with the slide block 3 to blow and radiate the audio amplifier body 7.

The two side walls of the case 1 are symmetrically provided with ventilation windows 8, the outer sides of the ventilation windows 8 are respectively provided with an outer frame 10, the top of the outer frame 10 is provided with an opening 20, an installation frame 11 is inserted into the opening 20, and the installation frame 11 is internally provided with a dustproof net 15; the dust screen 15 can isolate external dust, prevent that external dust from getting into quick-witted case 1 in, make audio amplifier body 7 radiating effect poor, when dust screen 15 needs to wash, can take out the installing frame 11 together through opening 20.

A connecting rod 12 is arranged between the ventilation window 8 and the outer frame 10, an exhaust fan 13 is arranged at the center of the connecting rod 12, and the exhaust fan 13 can accelerate the heat discharge in the case 1.

The handle 9 is arranged at the top of the mounting frame 11, so that the mounting frame 11 can be rapidly drawn out when the dust screen 15 needs to be replaced.

Be equipped with socket 14 in one side of installing frame 11, dust screen 15 passes through socket 14 cartridge in installing frame 11, can quick assembly disassembly dust screen 15, is convenient for wash dust screen 15.

The bottom of the outer frame 10 is provided with a groove 16, the bottom of the mounting frame 11 is arranged in the groove 16, and the mounting frame 11 can be firmly mounted in the outer frame 10.

The bottom of the case 1 is provided with support legs 19 for supporting the case 1, and the bottom of the support legs 19 is provided with an anti-slip pad 17, so that the case 1 is placed more stably.

A rubber pad 18 is arranged between the bottom of the audio amplifier body 7 and the case 1 to prevent the resonance between the audio amplifier body 7 and the case 1 and the noise.

Be equipped with temperature controller in quick-witted case 1, temperature controller and motor 2 and radiator fan 4 and exhaust fan 13 electricity are connected, and temperature controller monitors the temperature in quick-witted case 1 constantly, and when the temperature reached the setting value, start radiator fan 4, exhaust fan 13, motor 2, and motor 2 drives lead screw 5 and rotates and makes radiator fan 4 remove about in quick-witted case 1, dispels the heat for audio amplifier body 7, and exhaust fan 13 is outside the heat discharge machine case 1 in the quick-witted case 1.

The utility model discloses a working method does: temperature controller constantly monitors the temperature in quick-witted case 1, when the temperature in quick-witted case 1 reaches the setting value, start radiator fan 4, motor 2, exhaust fan 13, motor 2 drives lead screw 5 and rotates, make slider 3 drive radiator fan 4 and remove about in quick-witted case 1, the heat dissipation of blowing is carried out to fin 6 on the audio amplifier body 7, simultaneously through exhaust fan 13 with the heat that audio amplifier body 7 produced in quick-witted case 1 through ventilation window 8 discharge, dust screen 15 can prevent that external dust from getting into quick-witted case 1 in, when dust screen 15 needs to be changed or wash, take out installing frame 11 and dust screen 15 together through handle 9, and take out dust screen 15 through socket 14 and change or wash.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalent substitutions may be made in some of the features of the embodiments; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An audio power amplifier is characterized by comprising a case (1) and an audio amplifier body (7) arranged at the bottom of the case (1), wherein a radiating fin (6) is arranged on the upper surface of the audio amplifier body (7), a screw rod (5) is arranged above the case (1) in a penetrating manner, a sliding block (3) is arranged on the screw rod (5) in a penetrating manner, a radiating fan (4) is arranged below the sliding block (3), a motor (2) is arranged above one side of the case (1), and an output shaft of the motor (2) is coaxially connected with the screw rod (5);

ventilating windows (8) are symmetrically arranged on two side walls of the case (1), outer frames (10) are respectively arranged on the outer sides of the ventilating windows (8), an opening (20) is arranged at the top of each outer frame (10), an installation frame (11) is inserted into each opening (20), and a dustproof net (15) is arranged in each installation frame (11);

a connecting rod (12) is arranged between the ventilating window (8) and the outer frame (10), and an exhaust fan (13) is arranged at the center of the connecting rod (12).

2. The audio power amplifier of claim 1, wherein: a handle (9) is arranged at the top of the mounting frame (11).

3. The audio power amplifier of claim 1, wherein: a socket (14) is arranged on one side of the mounting frame (11), and the dustproof net (15) is inserted into the mounting frame (11) through the socket (14).

4. The audio power amplifier of claim 1, wherein: a groove (16) is formed in the bottom of the outer frame (10), and the bottom of the mounting frame (11) is arranged in the groove (16).

5. The audio power amplifier of claim 1, wherein: supporting legs (19) are arranged at the bottom of the case (1), and anti-skid pads (17) are arranged at the bottoms of the supporting legs (19).

6. The audio power amplifier of claim 1, wherein: a rubber pad (18) is arranged between the bottom of the audio amplifier body (7) and the case (1).

7. The audio power amplifier of claim 1, wherein: a temperature controller is arranged in the case (1), and the temperature controller is electrically connected with the cooling fan (4) and the exhaust fan (13).