Sound power amplifier

Abstract

The utility model relates to the technical field of audio power amplifiers, and discloses an audio power amplifier which comprises a shell, a mainboard is arranged in the shell, a heat conduction pad is arranged at the lower end of the mainboard and connected with the mainboard, a heat conduction plate is arranged at the lower end of the heat conduction pad, the heat conduction plate penetrates through and extends to the outside of the shell, and the heat conduction plate is connected with the shell; the heat dissipation fins are arranged at the lower end of the heat conduction plate, and the heat dissipation fins are connected with the heat conduction plate; and the cross-flow fan is arranged on the left side of the lower end of the exterior of the shell, and the cross-flow fan is connected with the shell. The mainboard is hermetically wrapped by the shell to be matched with the bottom heat conduction structure, so that dust is prevented from entering the shell while a heat dissipation function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sound power amplifier, concretely is a sound power amplifier. BACKGROUND

[0002] The sound power amplifier, full name power amplifier, is one of the core components in the sound system. Its main function is to receive weak electrical signals from the sound source or the pre-stage amplifier, and amplify these signals in order to drive the loudspeaker to emit loud and clear sound. The power amplifier plays a dual role of amplifying signals and driving loudspeakers in the sound system, and is the key equipment to ensure sound quality and volume.

[0003] Common sound power amplifiers usually have heat dissipation vents or holes on both sides of the shell for natural heat dissipation. Dust can easily enter the shell through the vents or holes, causing short circuits or damage to electronic components. Therefore, a sound power amplifier is proposed. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a sound power amplifier to solve the problems raised in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a sound power amplifier, comprising:

[0006] A shell is provided with a mainboard inside, a heat-conducting pad is arranged at the lower end of the mainboard, and the heat-conducting pad is connected with the mainboard, a heat-conducting plate is arranged at the lower end of the heat-conducting pad, the heat-conducting plate penetrates and extends to the outside of the shell, and the heat-conducting plate is connected with the shell;

[0007] A heat dissipation fin is arranged at the lower end of the heat-conducting plate, and the heat dissipation fin is connected with the heat-conducting plate;

[0008] A cross-flow fan is arranged at the left lower end outside the shell, and the cross-flow fan is connected with the shell.

[0009] Preferably, support columns are arranged at the four corners of the lower end of the shell, and the support columns are connected with the shell.

[0010] Preferably, an adjusting screw is installed inside the lower end of the support column, and the adjusting screw is connected with the support column through thread cooperation, and the adjusting screw is used to control the lifting of the support base.

[0011] Preferably, a support base is arranged at the lower end of the adjusting screw, and the support base is connected with the adjusting screw, and the support base is used to support the sound power amplifier.

[0012] Preferably, screw holes are arranged at both sides of the front end outside the shell, and the screw holes are integrally formed with the shell.

[0013] Preferably, both sides of the front end of the shell are provided with a carrying frame, the inside of the carrying frame is provided with a hand screw bolt, and the carrying frame facilitates carrying and moving of the shell.

[0014] Preferably, the hand screw bolt penetrates the carrying frame and extends to the inside of the screw hole, the hand screw bolt is connected with the screw hole through thread cooperation, and the hand screw bolt is used for fixing the carrying frame at the front end of the shell.

[0015] Compared with the prior art, the power amplifier has the following beneficial effects:

[0016] The shell structure without slots is used in cooperation with the bottom heat conduction structure to guide heat out of the shell, the airflow is generated by the cross-flow fan to perform heat dissipation, and the mainboard inside the power amplifier device is simultaneously subjected to heat dissipation and prevented from entering dust, thereby solving the problems in the background art. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall structure perspective view of the utility model;

[0018] Figure 2 It is an internal structure perspective view of the utility model;

[0019] Figure 3 It is a carrying frame and shell structure separation state perspective view of the utility model.

[0020] In the drawing: 1, shell; 2, mainboard; 3, heat conduction pad; 4, heat conduction plate; 5, heat dissipation fin; 6, cross-flow fan; 7, support column; 8, adjusting screw rod; 9, support base; 10, carrying frame; 11, hand screw bolt; 12, screw hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] The utility model provides a technical scheme, a kind of power amplifier, please refer to Figure 1 、 Figure 2 And Figure 3 , comprising:

[0023] Shell 1, the inside of shell 1 is provided with mainboard 2, the lower end of mainboard 2 is provided with heat conduction pad 3, and heat conduction pad 3 is connected with mainboard 2, the lower end of heat conduction pad 3 is provided with heat conduction plate 4, heat conduction plate 4 penetrates and extends to the outside of shell 1, and heat conduction plate 4 is connected with shell 1.

[0024] The heat dissipation fin 5 is arranged at the lower end of the heat conduction plate 4, and the heat dissipation fin 5 is connected with the heat conduction plate 4.

[0025] The cross-flow fan 6 is arranged at the left lower end outside the shell 1, and the cross-flow fan 6 is connected with the shell 1.

[0026] In use, the mainboard 2 generates heat when the power amplifier is in use, the heat is transmitted to the heat conduction plate 4 through the heat conduction pad 3, the heat conduction plate 4 transmits the heat to the heat dissipation fin 5, the heat is diffused through the heat dissipation fin 5, the cross-flow fan 6 is started, the cross-flow fan 6 generates airflow flowing through the heat dissipation fin 5, and then the heat is taken away to achieve heat dissipation. In this way, without opening a heat dissipation groove or hole in the shell 1, dust is prevented from entering the inside of the shell 1. It should be noted that, in order to save space and highlight the innovative elements of the patent, some conventional devices such as the mainboard 2, the heat conduction pad 3, and the cross-flow fan 6 are not described in detail in the patent.

[0027] Please refer to Figure 1 , Figure 2 and Figure 3 , the four corners of the lower end of the shell 1 are provided with support columns 7, and the support columns 7 are connected with the shell 1.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 , the inside of the lower end of the support column 7 is provided with an adjusting screw 8, and the adjusting screw 8 is connected with the support column 7 through thread cooperation, and the adjusting screw 8 is used to control the lifting of the support base 9.

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 , the lower end of the adjusting screw 8 is provided with a support base 9, and the support base 9 is connected with the adjusting screw 8, and the support base 9 is used to support the audio power amplifier.

[0030] Please refer to Figure 1 and Figure 3 , both sides of the front end outside the shell 1 are provided with screw holes 12, and the screw holes 12 are integrally formed with the shell 1.

[0031] Please refer to Figure 1 and Figure 3 , both sides of the front end outside the shell 1 are provided with a carrying rack 10, and the inside of the carrying rack 10 is provided with a hand screw bolt 11, and the carrying rack 10 makes the shell 1 easy to carry and move.

[0032] Please refer to Figure 1 and Figure 3 , the hand screw bolt 11 penetrates the carrying rack 10 and extends into the inside of the screw hole 12, the hand screw bolt 11 is connected with the screw hole 12 through thread cooperation, and the hand screw bolt 11 is used to fix the carrying rack 10 at the front end of the shell 1.

[0033] The scheme: when the power amplifier is used, the mainboard 2 generates heat, the heat is transmitted to the heat conduction plate 4 through the heat conduction pad 3, the heat conduction plate 4 is transmitted to the heat dissipation fin 5, the heat is diffused through the heat dissipation fin 5, the cross-flow fan 6 is started, the cross-flow fan 6 generates airflow flowing through the heat dissipation fin 5, and then the heat is taken away to achieve heat dissipation, in this way, the heat dissipation groove or hole is not needed to be opened on the shell 1, and the dust is prevented from entering the inside of the shell 1.

[0034] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An audio amplifier, characterized in that, include: The outer shell (1) has a main board (2) inside it. A heat-conducting pad (3) is provided at the lower end of the main board (2) and the heat-conducting pad (3) is connected to the main board (2). A heat-conducting plate (4) is provided at the lower end of the heat-conducting pad (3). The heat-conducting plate (4) penetrates through and extends to the outside of the outer shell (1) and is connected to the outer shell (1). Heat dissipation fins (5) are disposed at the lower end of the heat-conducting plate (4) and are connected to the heat-conducting plate (4); A cross-flow fan (6) is located on the left side of the lower end of the outer casing (1), and the cross-flow fan (6) is connected to the outer casing (1).

2. The audio amplifier according to claim 1, characterized in that: Support columns (7) are provided at the four corners of the lower end of the outer shell (1), and the support columns (7) are connected to the outer shell (1).

3. The audio amplifier according to claim 2, characterized in that: An adjusting screw (8) is installed inside the lower end of the support column (7), and the adjusting screw (8) is connected to the support column (7) by a threaded connection.

4. The audio amplifier according to claim 3, characterized in that: The lower end of the adjusting screw (8) is provided with a support base (9), and the support base (9) is connected to the adjusting screw (8).

5. The audio amplifier according to claim 1, characterized in that: The outer shell (1) has screw holes (12) on both sides of its front end, and the screw holes (12) are integrally formed with the outer shell (1).

6. The audio amplifier according to claim 5, characterized in that: Both sides of the outer front end of the outer shell (1) are provided with a carrying rack (10), and the inside of the carrying rack (10) is provided with a hand-tightening bolt (11).

7. The audio amplifier according to claim 6, characterized in that: The hand-tightening bolt (11) passes through the lifting frame (10) and extends into the screw hole (12). The hand-tightening bolt (11) and the screw hole (12) are connected by a threaded engagement.

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