CN219068728U

CN219068728U - Power amplifier

Info

Publication number: CN219068728U
Application number: CN202222562916.9U
Authority: CN
Inventors: 吕想
Original assignee: Hangzhou Qituo Audio Technology Co ltd
Current assignee: Hangzhou Qituo Audio Technology Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-23
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a power amplifier, which comprises a power amplifier shell and a sealing end cover arranged at the top of the power amplifier shell, wherein an installation mechanism is arranged in the power amplifier shell; the two sides of the sealing end cover are both connected with fixed bayonet locks in a sliding manner, and a second set of springs matched with the fixed bayonet locks is sleeved on the fixed bayonet locks. The utility model realizes a power amplifier by the mutual matching among the power amplifier shell, the sealing end cover, the mounting mechanism and the radiating fan, not only adopts the overhead power amplifier, but also can greatly increase the radiating effect of the power amplifier, further ensures the stable operation of the power amplifier, and is convenient for dismounting the end cover of the power amplifier, thereby being convenient for maintenance or replacement when the internal circuit board of the power amplifier is damaged, and further improving the practicability of the power amplifier.

Description

Power amplifier

Technical Field

The utility model relates to the technical field of power amplifiers, in particular to a power amplifier.

Background

A power amplifier refers to an amplifier that produces maximum power output to drive a load (e.g., a speaker) at a given distortion rate. The power amplifier plays a role of a pivot for organizing and coordinating in the whole sound system, and the power amplifier dominates whether the whole sound system can provide good tone quality output to a certain extent.

The application number is as follows: CN202020023237.2, disclosed is a power amplifier device, it has solved the low radiating efficiency of the existing power amplifier radiating structure, influence life and performance, and the existing radiating structural component changes the higher problem of maintenance cost, it includes the body of the amplifier, the said body of the amplifier is connected to circuit board upper end, the utility model, through setting up of the radiating mechanism, the heat is transmitted to radiator and lower radiating fin and dissipated downwards from the upper radiating fin, meanwhile, the radiating fan blows the wind-force to outside of radiator and radiating cavity, the wind-force takes away the heat from the interval between lower radiating fin and the upper radiating fin, further accelerate the heat to dissipate, make radiating efficiency high, effectually avoid the body of the amplifier heat too high to influence life and performance, and has reduced the energy consumption; through the bolted connection mode of amplifier body and cooling mechanism for the device structure simple to operate, and the part on the cooling mechanism is changed conveniently, and maintenance cost is low.

Although the power amplifier in the above technology can perform effective heat dissipation, the mounting structure of the amplifier is not disclosed, so that the power amplifier is inconvenient to disassemble and assemble when in use, and therefore, when a circuit board inside the power amplifier is damaged, the power amplifier is inconvenient to maintain or replace, thereby reducing the practicability.

Disclosure of Invention

Aiming at the problems that the power amplifier in the prior art can effectively dissipate heat, but the mounting structure of the power amplifier is not disclosed, so that the power amplifier is inconvenient to assemble and disassemble in use, and therefore, when a circuit board in the power amplifier is damaged, the circuit board is inconvenient to maintain or replace, so that the practicability is reduced.

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

a power amplifier, comprising:

the power amplifier comprises a power amplifier shell and a sealing end cover arranged at the top of the power amplifier shell, wherein an installation mechanism is arranged in the power amplifier shell;

the two sides of the sealing end cover are both connected with fixed bayonet locks in a sliding manner, the fixed bayonet locks are sleeved with a second set of springs matched with the fixed bayonet locks, and clamping grooves matched with the fixed bayonet locks are formed in the tops of the two sides of the power amplifier shell and correspond to the positions of the fixed bayonet locks;

the mounting mechanism comprises a mounting frame, supporting legs are fixedly connected to two sides of the bottom of the mounting frame, the bottom of the mounting frame is fixedly connected to the bottom of the inner wall of the power amplifier shell through the supporting legs, a power amplifier circuit board is mounted at the top of the mounting frame, and mounting screws are mounted at two sides of the mounting frame and correspond to the positions of the power amplifier circuit board.

Preferably, the bottom of the inner wall of the power amplifier shell is provided with a heat dissipation fan, and a plurality of heat dissipation holes which are arranged at equal intervals are respectively arranged at the two sides of the power amplifier shell and correspond to the positions of the mounting mechanisms.

Preferably, the power amplifier shell inner wall both sides and correspond the position of seal end cover all are provided with and pop out the subassembly, pop out the subassembly including fixed connection be in the installation sliding sleeve at power amplifier shell inner wall side top, sliding connection has the bullet pole on the installation sliding sleeve, the top fixedly connected with bullet piece of bullet pole is located the bullet piece with the cover is equipped with first cover spring on the bullet pole between the installation sliding sleeve.

Preferably, the bottom of the spring rod is fixedly connected with an anti-falling block.

Preferably, the top of bullet piece fixedly connected with rubber pad.

Preferably, the mounting frame is of hollow design.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model realizes a power amplifier by the mutual matching among the power amplifier shell, the sealing end cover, the mounting mechanism and the radiating fan, not only adopts the overhead power amplifier, but also can greatly increase the radiating effect of the power amplifier, further ensures the stable operation of the power amplifier, and is convenient for dismounting the end cover of the power amplifier, thereby being convenient for maintenance or replacement when the internal circuit board of the power amplifier is damaged, and further improving the practicability of the power amplifier.

Drawings

Fig. 1 is a schematic diagram of a power amplifier according to the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional structure of a power amplifier according to the present utility model;

FIG. 3 is a schematic diagram of a power amplifier housing in a power amplifier according to the present utility model;

FIG. 4 is a schematic diagram of the structure of the pop-up assembly in the power amplifier of the present utility model;

FIG. 5 is a schematic diagram of a seal end cap in a power amplifier according to the present utility model;

FIG. 6 is a schematic view of a partial enlarged structure at A in FIG. 5 according to the present utility model;

fig. 7 is a schematic structural view of a mounting mechanism in the power amplifier of the present utility model.

In the figure:

1. a power amplifier housing; 2. sealing the end cover; 3. a mounting mechanism; 4. a heat dissipation fan;

101. an ejector assembly; 1011. installing a sliding sleeve; 1012. a spring rod; 1013. a spring block; 1014. a first sleeve spring;

201. fixing the bayonet lock; 2011. a clamping groove; 202. a second set of springs;

301. a mounting frame; 302. support legs; 303. a power amplifier circuit board; 304. installing a screw;

401. and the heat dissipation holes.

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.

As shown in fig. 1-7, a power amplifier, comprising:

a power amplifier housing 1 and a sealing end cover 2 arranged at the top of the power amplifier housing 1, wherein an installation mechanism 3 is arranged in the power amplifier housing 1;

wherein, both sides of the sealing end cover 2 are slidably connected with a fixed bayonet lock 201, a second set of springs 202 matched with the fixed bayonet lock 201 are sleeved on the fixed bayonet lock 201, and clamping grooves 2011 matched with the fixed bayonet lock 201 are formed at the top of both sides of the power amplifier shell 1 and at positions corresponding to the fixed bayonet lock 201;

wherein, the installation mechanism 3 includes the mounting bracket 301, the equal fixedly connected with supporting leg 302 in both sides of mounting bracket 301 bottom, and the bottom of mounting bracket 301 passes through supporting leg 302 fixed connection in the bottom of power amplifier casing 1 inner wall, and power amplifier circuit board 303 is installed at the top of mounting bracket 301, and mounting screw 304 is all installed to the both sides of mounting bracket 301 and the position that corresponds power amplifier circuit board 303.

By adopting the technical scheme, the overhead power amplifier is adopted, the heat dissipation effect of the power amplifier can be greatly increased, the stable operation of the power amplifier is further ensured, and the end cover of the power amplifier is convenient to assemble and disassemble, so that when the internal circuit board of the power amplifier is damaged, the power amplifier is convenient to maintain or replace, and the practicability of the power amplifier is improved.

As shown in fig. 1-7, the bottom of the inner wall of the power amplifier housing 1 is provided with a heat dissipation fan 4, and both sides of the power amplifier housing 1 and corresponding to the mounting mechanism 3 are provided with a plurality of heat dissipation holes 401 which are arranged equidistantly.

By adopting the above technical scheme, the heat dissipation effect of the power amplifier circuit board 303 is increased.

As shown in fig. 1-7, the pop-up components 101 are disposed at two sides of the inner wall of the power amplifier housing 1 and corresponding to the positions of the sealing end covers 2, the pop-up components 101 comprise a mounting sliding sleeve 1011 fixedly connected to the top of the side surface of the inner wall of the power amplifier housing 1, a spring rod 1012 is slidingly connected to the mounting sliding sleeve 1011, a spring block 1013 is fixedly connected to the top of the spring rod 1012, and a first set of springs 1014 are sleeved on the spring rod 1012 between the spring block 1013 and the mounting sliding sleeve 1011.

Through adopting above-mentioned technical scheme, when pulling out fixed bayonet lock 201, conveniently pop up seal end cover 2 to seal end cover 2 dismantles the convenience has been improved.

As shown in fig. 1-7, the bottom of the spring rod 1012 is fixedly connected with an anti-drop block, and the top of the spring block 1013 is fixedly connected with a rubber pad.

By adopting the technical scheme, the spring rod 1012 is prevented from being separated from the installation sliding sleeve 1011 in the sliding process, and a certain protection effect can be achieved when the sealing end cover 2 is sprung.

As shown in fig. 1-7, the mounting 301 is of hollow design.

By adopting the technical scheme, the fluidity of the air at the bottom of the power amplifier circuit board 303 is increased, so that the heat dissipation effect of the power amplifier circuit board 303 is improved, and the working stability of the power amplifier circuit board 303 is further ensured.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes in detail the working principle or operation manner of the present utility model in the actual process.

When the power amplifier provided by the utility model is used, under the cooperation of the mounting frame 301 and the heat dissipation fan 4 which are designed in a hollow manner, the air flow around the power amplifier circuit board 303 can be greatly increased, so that the heat dissipation effect of the power amplifier circuit board 303 is improved, and the stable operation of the power amplifier is ensured; when the power amplifier circuit board 303 needs to be maintained, only the fixed bayonet lock 201 needs to be pulled out, and the fixed bayonet lock 201 is separated from the bayonet slot 2011, so that the sealing end cover 2 can be sprung up through the spring block 1013 under the action of the elastic force of the first set of springs 1014, and further, the power amplifier circuit board 303 is greatly convenient for a worker to overhaul or replace.

To sum up: the power amplifier is composed of a power amplifier shell 1, a sealing end cover 2, a mounting mechanism 3 and a heat dissipation fan 4, and solves the problems mentioned in the background art.

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. A power amplifier, comprising:

the power amplifier comprises a power amplifier shell (1) and a sealing end cover (2) arranged at the top of the power amplifier shell (1), wherein an installation mechanism (3) is arranged in the power amplifier shell (1);

the two sides of the sealing end cover (2) are both connected with fixed bayonet locks (201) in a sliding manner, a second set of springs (202) matched with the fixed bayonet locks (201) are sleeved on the fixed bayonet locks (201), and clamping grooves (2011) matched with the fixed bayonet locks (201) are formed in the tops of the two sides of the power amplifier shell (1) and correspond to the positions of the fixed bayonet locks (201);

wherein, installation mechanism (3) includes mounting bracket (301), the equal fixedly connected with supporting leg (302) in both sides of mounting bracket (301) bottom, just the bottom of mounting bracket (301) is passed through supporting leg (302) fixed connection is in the bottom of power amplifier casing (1) inner wall, power amplifier circuit board (303) are installed at the top of mounting bracket (301), mounting screw (304) are all installed in the both sides of mounting bracket (301) and correspond the position of power amplifier circuit board (303).

2. A power amplifier according to claim 1, characterized in that: the bottom of the inner wall of the power amplifier shell (1) is provided with a heat dissipation fan (4), and a plurality of heat dissipation holes (401) which are arranged at equal intervals are formed in the two sides of the power amplifier shell (1) and correspond to the mounting mechanism (3).

3. A power amplifier according to claim 2, characterized in that: the power amplifier is characterized in that pop-up assemblies (101) are arranged on two sides of the inner wall of the power amplifier shell (1) and correspond to the positions of the sealing end covers (2), each pop-up assembly (101) comprises an installation sliding sleeve (1011) fixedly connected to the top of the side face of the inner wall of the power amplifier shell (1), a spring rod (1012) is slidably connected to the installation sliding sleeve (1011), a spring block (1013) is fixedly connected to the top of the spring rod (1012), and a first spring set (1014) is sleeved on the spring rod (1012) between the spring block (1013) and the installation sliding sleeve (1011).

4. A power amplifier according to claim 3, characterized in that: the bottom of the spring rod (1012) is fixedly connected with an anti-falling block.

5. A power amplifier according to claim 4, wherein: the top of bullet piece (1013) fixedly connected with rubber pad.

6. A power amplifier according to claim 5, characterized in that: the mounting frame (301) is of hollow design.