CN219592580U - Dustproof mechanism for ventilation hole of power amplifier - Google Patents

Abstract

The utility model provides a vent dustproof mechanism of a power amplifier, which comprises a casing, wherein an electronic element installation area is arranged in the casing, an electronic element is installed in the electronic element installation area, a partition plate is installed in the casing at two ends of the electronic element installation area along the vertical direction, a plurality of heat exchange holes larger than the number are arranged on the partition plate, heat exchange covers are arranged on the partition plate at the outer sides of the heat exchange holes, an air exchange area is reserved between adjacent heat exchange covers, inner and outer penetrating radiating holes are arranged on the side walls at two sides of the heat exchange covers, a dustproof cover is arranged on the heat exchange cover at the outer sides of the radiating holes, inner and outer penetrating vent holes are arranged at the end parts of the casing, and the vent holes are opposite to the end parts of the outer ends of the heat exchange covers. After the scheme is adopted, the dustproof air reenters the heat exchange cover, so that the cleanliness in the shell is ensured, dust can not be accumulated in the long-term use process of the power amplifier, and the use of electronic elements is not affected.

Description

Dustproof mechanism for ventilation hole of power amplifier

Technical Field

The utility model relates to the technical field of power amplifiers, in particular to a dustproof mechanism for a vent hole of a power amplifier.

Background

The power amplifier is an audio power amplifier and is generally used for conference, performance, hall, field and public address of the hall. The design is mainly characterized by high output power, perfect protection circuit and good heat dissipation; the technology of electronic components in a power amplifier is quite mature under the continuous research and development of people for decades, but in the aspect of heat dissipation, the traditional power amplifier is provided with heat dissipation holes penetrating through the inside and the outside at two ends of a shell, heat exchange is directly carried out through the heat dissipation holes, and an impurity-preventing net is designed at the heat dissipation holes.

Disclosure of Invention

The utility model aims to provide a vent dustproof mechanism of a power amplifier, which has reasonable structure and good use effect.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: the utility model provides a power amplifier ventilation hole dustproof mechanism, it includes the casing, be equipped with the electronic component installation district in the casing, install electronic component in the electronic component installation district, install the baffle along vertical direction in the casing at electronic component installation district both ends, be equipped with the heat transfer hole that quantity is greater than on the baffle, be equipped with the heat exchanger cover on the baffle in the heat exchanger hole outside, reserve between the adjacent heat exchanger cover and have the air exchange district, be equipped with the louvre that runs through inside and outside on the lateral wall of heat exchanger cover both sides, be equipped with the dust cover on the heat exchanger cover in the louvre outside, the casing tip is equipped with the ventilation hole that runs through inside and outside, the ventilation hole is just to the heat exchanger cover outer end tip.

The heat exchange cover is a hollow box-shaped body, one end of the heat exchange cover is opened to form an exchange port, the exchange port is connected with the heat exchange holes, the heat exchange covers on two sides of the exchange port are bent to form mounting edges, the mounting edges are connected with the partition plates, and the heat dissipation holes are formed in the side walls on two sides of the heat exchange cover.

The dust cover is in a sheet shape, two ends of the dust cover are bent towards the same side to form side edges, the side edges are triangular with upper tips and lower widths, the side edges are connected with the outer sides of the heat exchange covers at two ends of the radiating holes, the tops of the dust covers are abutted against the outer side walls of the heat exchange covers above the radiating holes, the side view of the installed dust cover is triangular with the upper parts being small and the lower parts being big, and the horizontal plane of the bottom of the dust cover is lower than that of the bottom of the radiating holes.

The casing inside the ventilation hole is internally provided with an impurity preventing net which is made of metal meshes.

The top of the partition plate is bent to one side to form a connecting plate, and the connecting plate is connected with the framework in the shell through screws.

According to the utility model, after the scheme is adopted, the partition plates are arranged at the two ends of the electronic component mounting area in the shell to isolate dust, meanwhile, the hollow heat exchange cover is adopted to exchange internal and external air, heat emitted by the electronic component is exchanged and conducted, the ventilation hole is adopted to ventilate, the impurity prevention net is used for preventing larger impurities from entering the shell for the first time, the dust prevention cover is adopted to prevent the impurities from entering the shell for the second time, and the air after dust prevention enters the heat exchange cover again, so that the cleanliness in the shell is ensured, dust accumulation is avoided in the long-term use process of the power amplifier, and the use of the electronic component is not influenced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is an internal schematic view of the present utility model.

Fig. 3 is a schematic view of a dust cap of the present utility model.

Fig. 4 is a schematic view of a heat exchanger jacket of the present utility model.

Detailed Description

The utility model is further described below with reference to all drawings, in which preferred embodiments of the utility model are:

the embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 1 to 4, the dustproof mechanism for the vent hole of the power amplifier according to the embodiment comprises a casing 1, an electronic component mounting area is arranged in the casing 1, an electronic component is mounted in the electronic component mounting area, a partition plate 2 is mounted in the casing 1 at two ends of the electronic component mounting area along the vertical direction, heat exchange holes 6 with the number larger than 2 are formed in the partition plate 2, a heat exchange cover 4 is arranged on the partition plate 2 at the outer side of the heat exchange hole 6, an air exchange area is reserved between adjacent heat exchange covers 4, heat dissipation holes 5 penetrating through inside and outside are formed in the side walls at two sides of the heat exchange cover 4, a dustproof cover 8 is arranged on the heat exchange cover 4 at the outer side of the heat dissipation holes 5, vent holes 7 penetrating through inside and outside are formed in the end parts of the casing 1, and the vent holes 7 are over against the outer end parts of the heat exchange cover 4. The heat exchange cover 4 is a hollow box-shaped body, one end of the heat exchange cover 4 is opened to form an exchange port, the exchange port is connected with the heat exchange holes 6, the heat exchange covers 4 on two sides of the exchange port are bent to form mounting edges, the mounting edges are connected with the partition plate 2, and the heat dissipation holes 5 are positioned on the side walls on two sides of the heat exchange cover 4; the dust cover 8 is sheet-shaped, two ends of the dust cover are bent towards the same side to form side edges, the side edges are triangular with upper tips and lower widths, the side edges are connected with the outer sides of the heat exchange covers 4 at two ends of the radiating holes 5, the tops of the dust cover 8 are in contact with the outer side walls of the heat exchange covers 4 above the radiating holes 5, the side view of the mounted dust cover 8 is triangular with smaller upper parts and larger lower parts, and the horizontal plane of the bottom of the dust cover 8 is lower than that of the bottom of the radiating holes 5; an impurity preventing net 9 is arranged in the casing 1 at the inner side of the vent hole 7, and the impurity preventing net 9 is made of metal meshes; the top of the partition plate 2 is bent to one side to form a connecting plate 3, and the connecting plate 3 is connected with a framework in the shell 1 through screws.

The external air of the embodiment enters through the vent hole, the first dust prevention (impurity prevention) is carried out through the impurity prevention net, the air after the first dust prevention (impurity removal) enters is blocked by the outer end part of the heat exchange cover (the air cannot directly enter the electronic component installation area), a dust falling area of 1-3CM is reserved between the outer end part of the heat exchange cover and the impurity prevention net, the dust falling is carried out again through the blocking of the outer end part of the heat exchange cover (second dust removal), and the air after the second dust removal enters the air exchange area; when the electronic component is used, one part of heat generated by the electronic component is directly subjected to heat exchange with air in the air exchange area through heat conduction of the partition plate, the other part of heat passes through the heat exchange hole to enter the heat exchange cover, the heat exchange is performed through the heat exchange cover, and the other part of air passes through the heat dissipation hole to be directly subjected to heat exchange with the air in the air exchange area, so that dust in the air exchange area is blocked by the surface of the dust cover (third dust fall) in a bottom air inlet mode, the cleanliness of the air entering the heat exchange cover is high, the cleanliness in the casing is ensured, and the power amplifier can not accumulate dust in the long-term use process and does not influence the use of the electronic component.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, so that all changes made in the shape and principles of the present utility model are covered by the scope of the present utility model.

Claims (5)

1. The utility model provides a dustproof mechanism in power amplifier ventilation hole, it includes casing (1), is equipped with electronic component installation zone in casing (1), installs electronic component in the electronic component installation zone, its characterized in that: baffle (2) are installed along vertical direction in casing (1) at electronic component installation district both ends, be equipped with heat exchange hole (6) that quantity is greater than 2 on baffle (2), be equipped with heat exchanger cover (4) on baffle (2) in heat exchanger hole (6) outside, reserve between adjacent heat exchanger cover (4) has the air exchange district, be equipped with inside and outside louvre (5) that run through on heat exchanger cover (4) both sides lateral wall, be equipped with dust cover (8) on heat exchanger cover (4) in the louvre (5) outside, casing (1) tip is equipped with inside and outside ventilation hole (7) that run through, ventilation hole (7) are just to heat exchanger cover (4) outer end tip.

2. The dustproof mechanism for the vent hole of the power amplifier according to claim 1, wherein: the heat exchange cover (4) is a hollow box-shaped body, one end of the heat exchange cover (4) is opened to form an exchange port, the exchange port is connected with the heat exchange holes (6), the heat exchange covers (4) on two sides of the exchange port are bent to form mounting edges, the mounting edges are connected with the partition plate (2), and the heat dissipation holes (5) are arranged on side walls on two sides of the heat exchange cover (4).

3. The dustproof mechanism for the vent hole of the power amplifier according to claim 1, wherein: the dust cover (8) is in a sheet shape, two ends of the dust cover are bent to the same side to form side edges, the side edges are triangular with upper tips and lower widths, the side edges are connected with the outer sides of the heat exchange covers (4) at two ends of the radiating holes (5), the tops of the dust covers (8) are in contact with the outer side walls of the heat exchange covers (4) above the radiating holes (5), the side edges of the installed dust covers (8) are triangular with the upper sides smaller than the lower sides, and the horizontal plane of the bottoms of the dust covers (8) is lower than the horizontal plane of the bottoms of the radiating holes (5).

4. The dustproof mechanism for the vent hole of the power amplifier according to claim 1, wherein: an impurity preventing net (9) is arranged in the casing (1) at the inner side of the vent hole (7), and the impurity preventing net (9) is made of metal meshes.

5. The dustproof mechanism for the vent hole of the power amplifier according to claim 1, wherein: the top of the partition plate (2) is bent to one side to form a connecting plate (3), and the connecting plate (3) is connected with a framework in the shell (1) through screws.