CN212649666U

CN212649666U - Multichannel power amplifier

Info

Publication number: CN212649666U
Application number: CN202021959549.0U
Authority: CN
Inventors: 雷振华
Original assignee: Guangzhou Dema Audio Technology Co ltd
Current assignee: Guangzhou Dema Audio Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-03-02
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a multichannel power amplifier relates to audio equipment technical field, specifically includes side board and power amplifier unit, the front and the back of power amplifier unit all are provided with the fixed plate, and the through-hole has been seted up on the surface of fixed plate, and fixed plate fixed connection is on the surface of side board, and the gas pocket is seted up on the surface of side board, and the bottom of power amplifier unit is provided with the connecting plate, and the bottom of power amplifier unit runs through the connecting plate and extends to the below of connecting plate, and the both sides of connecting plate are connected with the fixed surface of side board. Through setting up through-hole, heat conduction copper, fin and radiator fan, start the fan, reached and carried out effective radiating effect continuously to the power amplifier unit, the combination of having solved current integrated form multichannel power amplifier then can bring consumption and thermal increase, and the heat dissipation on the multichannel power amplifier can not satisfy the demand of self to lead to long-time the use and lead to the fact the damage to the part, influence the problem of normal use.

Description

Multichannel power amplifier

Technical Field

The utility model relates to a sound equipment technical field specifically is a multichannel power amplifier.

Background

The power amplifier is a power amplifier, which is a machine for amplifying audio playing source signals as the name suggests, and is used for driving sound production, the power amplifier of a set of good sound system has no function, and the power amplifier can be divided into three major categories, namely professional power amplifier, civil power amplifier and special power amplifier.

At present, in order to amplify signals and meet the requirement of multi-channel output, an integrated multi-channel power amplifier is generally added on the existing basis, the combination of the integrated multi-channel power amplifier can bring the increase of power consumption and heat, and the heat dissipation of the existing multi-channel power amplifiers can not meet the requirement of the power amplifiers, so that the components are damaged due to long-time use, and the influence is caused on daily use.

Disclosure of Invention

An object of the utility model is to provide a multichannel power amplifier to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a multi-channel power amplifier comprises a side panel and a power amplifier unit, wherein the front side and the back side of the power amplifier unit are respectively provided with a fixed plate, the surface of the fixed plate is provided with a through hole, the fixed plate is fixedly connected with the surface of the side panel, the surface of the side panel is provided with an air hole, the bottom of the power amplifier unit is provided with a connecting plate, the bottom of the power amplifier unit penetrates through the connecting plate and extends to the lower part of the connecting plate, the two sides of the connecting plate are fixedly connected with the surface of the side panel, the top of the power amplifier unit is provided with a fixed rod which is fixedly connected with the surface of the fixed plate, the top of the fixed rod is fixedly connected with a radiating fin, the side of the power amplifier unit is provided with a heat-conducting copper plate, the bottom, and a heat radiation fan is arranged in the fixing frame and is positioned right above the heat conduction copper plate.

As a further aspect of the present invention: the number of the fixing rods is more than or equal to one.

As a further aspect of the present invention: the top of heat conduction copper plate has seted up the round hole, and the bottom of round hole runs through heat conduction copper plate and connecting plate and extends to the bottom of connecting plate.

As a further aspect of the present invention: the number of the radiating fins is more than or equal to one.

As a further aspect of the present invention: the power amplifier unit quantity more than or equal to one, the heat conduction copper plate sets up between two power amplifier units, and the screw hole is seted up on the surface of side board.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the through-hole, the heat conduction copper, fin and radiator fan, start the fan, gas pocket and through-hole are with on the outside air suction power amplifier unit, the air absorbs the heat and flows to radiator fan's direction, the heat conduction copper absorbs the heat and with the leading-in to the fin of heat, the round hole is from up flowing down when the effect of fan, final radiator fan blows off the hot-air from the fin, it lasts effective radiating effect to power amplifier unit to have reached, the combination of having solved current integrated form multichannel power amplifier then can bring consumption and thermal increase, and the heat dissipation on the multichannel power amplifier can not satisfy the demand of self, thereby lead to long-time the use and lead to the fact the damage to the part, influence normal use's problem.

Drawings

Fig. 1 is a front view of a multi-channel power amplifier.

Fig. 2 is a front cross-sectional view of a multi-channel power amplifier.

Fig. 3 is an enlarged view of a structure a in fig. 2 of the multi-channel power amplifier.

Fig. 4 is a bottom view of a multi-channel power amplifier.

As shown in the figure: 1. a side panel; 2. a power amplifier unit; 3. a fixing plate; 4. a through hole; 5. air holes; 6. a connecting plate; 7. fixing the rod; 8. a heat sink; 9. a heat-conducting copper plate; 10. a fixed mount; 11. a heat radiation fan; 12. a circular hole.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, in an embodiment of the present invention, a multi-channel power amplifier includes a side panel 1 and power amplifier units 2, the number of the power amplifier units 2 is greater than or equal to one, a heat conducting copper plate 9 is disposed between the two power amplifier units 2 for conducting heat of the power amplifier units 2, and the heat is transferred to a heat sink 8 through a circular hole 12, so that the heat is dissipated through a heat dissipating fan 11, a threaded hole is formed on the surface of the side panel 1 for fixing the side panel 1 integrating a plurality of power amplifier units 2, so that the power amplifier units 2 are stable in operation, fixing plates 3 are disposed on the front and back surfaces of the power amplifier units 2, through holes 4 are formed on the surface of the fixing plate 3, and more than one through hole 4 is used for air intake, thereby achieving air circulation inside the power amplifier units 2, and increasing heat dissipation efficiency, the fixing plate 3, the surface of the side panel 1 is provided with air holes 5 for air intake, the through holes 4 and the air holes 5 intake air from the upper, lower, left and right sides of the power amplifier unit 2, so that better air circulation and heat dissipation of the power amplifier unit 2 are realized, the bottom of the power amplifier unit 2 is provided with a connecting plate 6, the bottom of the power amplifier unit 2 penetrates through the connecting plate 6 and extends to the lower part of the connecting plate 6, two sides of the connecting plate 6 are fixedly connected with the surface of the side panel 1, the top of the power amplifier unit 2 is provided with a fixing rod 7, the number of the fixing rods 7 is more than or equal to one, the fixing rod 7 is fixedly connected with the surface of the fixing plate 3, the top of the fixing rod 7 is fixedly connected with a radiating fin 8, the number of the radiating fins 8 is more than or equal to one, the radiating fins 8 are aluminum sheets, effect through radiator fan 11, make round hole 12 admit air from the below, give vent to anger from the top, thereby carry the heat on the heat conduction copper 9 on the fin 8, and dispel the heat through radiator fan 11, the bottom of round hole 12 runs through heat conduction copper 9 and connecting plate 6 and extends to the bottom of connecting plate 6, the bottom of heat conduction copper 9 and the top fixed connection of connecting plate 6, the top fixed connection of heat conduction copper 9 is in the inside of fin 8, the top of fin 8 is provided with mount 10, the both sides of mount 10 and the fixed surface of side board 1 are connected, the inside of mount 10 is provided with radiator fan 11, radiator fan 11 is provided with a plurality ofly, dispel the heat to power amplifier unit 2 in the lump, radiator fan 11 is located heat conduction copper 9 directly over.

When using, radiator fan 11's power supply mode is the same with power amplifier unit 2's power supply mode, start power amplifier unit 2 thereby make radiator fan 11 start, some heat conduction that power amplifier unit 2 produced is on heat conduction copper 9, heat conduction copper 9 conducts the heat on fin 8, the inside air-out of round hole 12 on the heat conduction copper 9 also dispels the heat, the wind direction is for flowing from the below of round hole 12 to the top of round hole 12, through-hole 4 and gas pocket 5 admit air and carry the heat to radiator fan 11's direction, the air that has the heat arrives on fin 8, finally, it is sucked by radiator fan 11 to have thermal air, thereby dispel the heat fast, radiating mode = continuously dispels the heat according to above-mentioned step always, very strong radiating effect has, can make multichannel power amplifier continuously stable work, and simple to operate, and convenient to use.

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 or portions thereof without departing from the spirit and scope of the invention, and the following claims are therefore to be read in this light of the appended claims.

Claims

1. A multi-channel power amplifier comprises a side panel (1) and a power amplifier unit (2), and is characterized in that the front and the back of the power amplifier unit (2) are respectively provided with a fixing plate (3), the surface of the fixing plate (3) is provided with a through hole (4), the fixing plate (3) is fixedly connected with the surface of the side panel (1), the surface of the side panel (1) is provided with an air hole (5), the bottom of the power amplifier unit (2) is provided with a connecting plate (6), the bottom of the power amplifier unit (2) penetrates through the connecting plate (6) and extends to the lower part of the connecting plate (6), the two sides of the connecting plate (6) are fixedly connected with the surface of the side panel (1), the top of the power amplifier unit (2) is provided with a fixing rod (7), the fixing rod (7) is fixedly connected with the surface of the fixing plate (3), the top of the fixing rod (7), the bottom of heat conduction copper (9) and the top fixed connection of connecting plate (6), the top fixed connection of heat conduction copper (9) is in the inside of fin (8), and the top of fin (8) is provided with mount (10), and the both sides of mount (10) are connected with the fixed surface of side board (1), and the inside of mount (10) is provided with radiator fan (11), and radiator fan (11) are located heat conduction copper (9) directly over.

2. The multi-channel power amplifier as claimed in claim 1, wherein the number of the fixing rods (7) is greater than or equal to one.

3. The multi-channel power amplifier according to claim 1, wherein a round hole (12) is formed in the top of the heat-conducting copper plate (9), and the bottom of the round hole (12) penetrates through the heat-conducting copper plate (9) and the connecting plate (6) and extends to the bottom of the connecting plate (6).

4. The multi-channel power amplifier according to claim 1, wherein the number of the heat dissipation fins (8) is more than or equal to one.

5. The multi-channel power amplifier according to claim 1, wherein the number of the power amplifier units (2) is more than or equal to one, the heat conducting copper plate (9) is arranged between the two power amplifier units (2), and the surface of the side panel (1) is provided with a threaded hole.