CN219046542U

CN219046542U - Broadcasting power amplifier

Info

Publication number: CN219046542U
Application number: CN202223484145.2U
Authority: CN
Inventors: 邱晓健; 连峰; 邱正峰; 邱正阳; 崔淼; 崔韧
Original assignee: Nanchang Hang Tian Guang Xin Technology Co ltd
Current assignee: Nanchang Hang Tian Guang Xin Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-19
Anticipated expiration: 2032-12-22

Abstract

The utility model relates to a broadcasting power amplifier, which comprises a power amplifier body, wherein a plurality of through holes are formed in the lower end of the power amplifier body, a heat dissipation chamber is formed in the lower end of the power amplifier body, the power amplifier body is communicated with the heat dissipation chamber through the through holes, a plurality of air outlet holes are uniformly formed in the lower end of the heat dissipation chamber, a motor is arranged on one side of the heat dissipation chamber, a rotating rod is arranged on the driving end of the motor, a plurality of driving chambers are arranged in the heat dissipation chamber, one end of the rotating rod penetrates through the driving chambers and is in rotary connection with the heat dissipation chamber, a driving conical gear is arranged in each driving chamber, the driving conical gears are fixedly connected with the rotating rod, each driving conical gear is in meshed connection with a driven conical gear, a rotating shaft is arranged at the upper end of the driven conical gear, a fan is connected with the rotating shaft through the driving chamber, and is in rotary connection with the driving chamber.

Description

Broadcasting power amplifier

Technical Field

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

Background

The amplifier amplifies weak electric signals from a signal source to drive a loudspeaker to make sound, and is the most basic equipment in a sound system. The existing power amplifier can generate a large amount of heat in the use process, especially when used in occasions with longer service time such as broadcasting stations, if the heat cannot be timely discharged, the heat can damage elements in the power amplifier, and therefore the service life of the whole broadcasting power amplifier is affected.

Secondly, in the use of the existing broadcast power amplifier, dust in air can be brought into the power amplifier by an air inlet at the top in the heat dissipation process, and in the long-time use process, the dust can influence the sensitivity of element signal transmission in the power amplifier, so that the normal use of the whole power amplifier is influenced.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a broadcasting power amplifier, which solves the problem that the heat can damage elements in the power amplifier if the heat cannot be timely discharged in the using process of the existing broadcasting power amplifier.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a broadcasting power amplifier, includes the power amplifier body, power amplifier body lower extreme is equipped with a plurality of through-holes, power amplifier body lower extreme is equipped with the heat dissipation room, the power amplifier body communicates with each other through the through-hole with the heat dissipation room, the heat dissipation room lower extreme evenly is equipped with a plurality of apopores, one side is equipped with the motor in the heat dissipation room, the motor drive end is equipped with the bull stick, be equipped with a plurality of drive rooms in the heat dissipation room, bull stick one end passes a plurality of drive rooms and heat dissipation room rotation and is connected, every be equipped with drive bevel gear in the drive room, a plurality of drive bevel gear all with bull stick fixed connection, every drive bevel gear meshing is connected with driven bevel gear, driven bevel gear upper end is equipped with the pivot, the pivot upper end passes the drive room and is connected with the fan, a plurality of the fan sets up respectively in a plurality of through-hole below, be equipped with dustproof subassembly on the power amplifier body, dustproof subassembly is including the activity setting up the dustproof lid on the power amplifier body, is convenient for in time prolong the whole life of power amplifier fast to power amplifier.

In a further preferred embodiment, the two sides of the power amplifier body are uniformly provided with a plurality of heat dissipation fins, the upper end of the power amplifier body is provided with two air inlets, and the two air inlets are respectively provided with filter cotton, so that the power amplifier body can be conveniently cooled, and the air entering the power amplifier body can be dedusted and filtered.

In a further preferred embodiment, the dust cover is symmetrically provided with four fixing assemblies on two sides, each fixing assembly comprises a fixing shell fixedly arranged on one side of the dust cover, so that the dust cover is convenient to fix.

In a further preferred embodiment, the fixing shell is provided with a pull rod in a drawing and inserting manner, one end of the pull rod is provided with a limiting plate, and the other end of the pull rod penetrates through the fixing shell and is connected with an inserting block, so that the pull rod is conveniently limited.

In a further preferred embodiment, a spring is disposed between the insert block and the fixing shell, the spring is movably sleeved on the outer side of the pull rod, one end of the insert block penetrates through the fixing shell to be inserted and connected with the fixing block, and the lower end of the fixing block is fixedly connected with the power amplifier body, so that the fixing block is convenient to fix.

In a further preferred aspect, the lower end of the dust cover is recessed inwards to form a fixing groove matched with the fixing block and the inserting block, so that the fixing block and the inserting block can move conveniently.

In a further preferred embodiment, a plurality of signal connectors are provided on one side of the power amplifier body, each signal connector is movably sleeved with a cover body, and a rubber strip is connected between one side of the cover body and the power amplifier body, so that the signal connectors are convenient to be dustproof.

(III) beneficial effects

Compared with the prior art, the utility model provides a broadcasting power amplifier, which has the following beneficial effects:

1. according to the utility model, the plurality of fans can be driven to rotate by one motor, so that heat can be timely dissipated in the using process of the power amplifier, and meanwhile, the heat dissipation fins are arranged to dissipate heat of the power amplifier body, so that heat generated by the whole power amplifier can be timely and efficiently dissipated, elements in the power amplifier body are protected, and the service life of the power amplifier is prolonged.

2. According to the utility model, the dust cover is arranged, so that dust in the power amplifier can be prevented from entering the power amplifier for a long time in the using process, meanwhile, the filter cotton is arranged, dust in air entering the main body of the power amplifier can be filtered, the entering of the dust is reduced, the sensitivity of signal transmission of internal elements is ensured, the normal use of the whole power amplifier is ensured, and the dust cover is convenient to detach and install, so that the dust cover is very convenient to clean.

3. According to the utility model, the signal connector, the cover body and the rubber strip are matched, so that the unused signal connector can be prevented from being dust-proof, long-time unused dust is prevented from falling onto the signal connector, the phenomenon of poor contact in subsequent use is avoided, the service life of the signal connector is prolonged, the normal use of the whole broadcasting power amplifier is ensured, and the cover body can be prevented from being lost by the arrangement of the rubber strip.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a broadcast power amplifier in the present utility model;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of a part of a cross-sectional structure of a fixing assembly according to the present utility model;

FIG. 4 is an enlarged view of part of the B of FIG. 3 according to the present utility model;

FIG. 5 is a schematic view of a partial cross-sectional structure of a heat dissipation chamber according to the present utility model.

In the figure: 1. a power amplifier body; 2. a through hole; 3. a heat dissipation chamber; 4. an air outlet hole; 5. a motor; 6. a rotating rod; 7. a driving chamber; 8. driving a bevel gear; 9. a driven bevel gear; 10. a rotating shaft; 11. a fan; 12. radiating fins; 13. a dust cover; 14. an air inlet; 15. filtering cotton; 16. a fixed case; 17. a pull rod; 18. a limiting plate; 19. inserting blocks; 20. a spring; 21. a fixed block; 22. a fixing groove; 23. a signal connector; 24. a cover body; 25. rubber strips.

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.

Embodiment one:

referring to fig. 1-5, a broadcasting power amplifier includes a power amplifier body 1, a plurality of through holes 2 are provided at the lower end of the power amplifier body 1, a heat dissipation chamber 3 is provided at the lower end of the power amplifier body 1, the power amplifier body 1 is communicated with the heat dissipation chamber 3 through the through holes 2, a plurality of air outlet holes 4 are uniformly provided at the lower end of the heat dissipation chamber 3, a motor 5 is provided at one side of the heat dissipation chamber 3, a rotating rod 6 is provided at the driving end of the motor 5, a plurality of driving chambers 7 are provided in the heat dissipation chamber 3, one end of the rotating rod 6 passes through the plurality of driving chambers 7 and is rotatably connected with the heat dissipation chamber 3, a driving bevel gear 8 is provided in each driving chamber 7, a plurality of driving bevel gears 8 are fixedly connected with the rotating rod 6, each driving bevel gear 8 is in engagement connection with a driven bevel gear 9, a rotating shaft 10 is provided at the upper end of the driven bevel gear 9, a fan 11 is provided at the upper end of the rotating shaft 10 passes through the driving chamber 7 and is rotatably connected with the driving chamber 11, a plurality of fans 11 are respectively provided below the plurality of through holes 2, a dustproof component is provided on the power amplifier body 1, and the dustproof component comprises a dustproof cover 13 movably provided on the power amplifier body 1.

In this embodiment, a plurality of heat dissipation fins 12 are uniformly arranged on two sides of the power amplifier body 1, two air inlets 14 are arranged at the upper end of the power amplifier body 1, filter cotton 15 is respectively arranged on the two air inlets 14, when the power amplifier body 1 operates, heat generated in the power amplifier body is transferred to the heat dissipation fins 12, the contact area between the heat dissipation fins 12 and air is increased, so that the power amplifier body 1 is dissipated, external air can enter the power amplifier body 1 after being filtered through the filter cotton 15, and dust can be blocked outside the power amplifier body 1 by the fiber filter screen.

In this embodiment, four fixing assemblies are symmetrically disposed on two sides of the dust cover 13, each fixing assembly includes a fixing housing 16 fixedly disposed on one side of the dust cover 13, and the dust cover 13 can be mounted on the power amplifier body 1 through the fixing assemblies.

In this embodiment, a pull rod 17 is inserted into the fixed housing 16, one end of the pull rod 17 is provided with a limiting plate 18, the other end of the pull rod passes through the fixed housing 16 and is connected with an insert block 19, the limiting plate 18 is pulled, and the limiting plate 18 drives the pull rod 17 and the insert block 19 to move.

In this embodiment, a spring 20 is disposed between the insert block 19 and the fixed shell 16, the spring 20 is movably sleeved on the outer side of the pull rod 17, one end of the insert block 19 passes through the fixed shell 16 and is connected with a fixed block 21 in a drawing and inserting manner, the lower end of the fixed block 21 is fixedly connected with the power amplifier body 1, when the insert block 19 moves outwards, the spring 20 compresses, so that the insert block 19 is separated from the fixed block 21, and the dust cover 13 can be detached by pulling the dust cover 13 upwards.

In this embodiment, the lower end of the dust cap 13 is recessed inward to form a fixing groove 22 that mates with the fixing block 21 and the insert block 19, and the fixing block 21 and the insert block 19 are movable within the fixing groove 22.

In this embodiment, a plurality of signal connectors 23 are arranged on one side of the power amplifier body 1, a cover 24 is movably sleeved on each signal connector 23, a rubber strip 25 is connected between one side of the cover 24 and the power amplifier body 1, in the using process of the power amplifier body 1, some signal connectors 23 are not needed, the cover 24 can be covered on the signal connectors 23 to prevent dust, when the signal connectors 23 are needed to be used, the cover 24 is pulled and opened, and the rubber strip 25 can connect the cover 24 to the power amplifier body 1, so that the cover 24 is prevented from being lost when not used.

Embodiment two:

on the basis of embodiment one, when the power amplifier is in use, a large amount of heat can be generated in the power amplifier body 1 when the power amplifier is in operation, the heat is transmitted to the radiating fins 12 outwards, the contact area between the radiating fins 12 and air is increased, thereby radiating the power amplifier body 1, meanwhile, the motor 5 is started, the motor 5 drives the rotating rod 6 to rotate, the rotating rod 6 drives the plurality of driving bevel gears 8 to rotate, the driving bevel gears 8 drive the driven bevel gears 9 to rotate, the rotating rod 6 and the fan 11 rotate, the fan 11 drives the air in the power amplifier body 1 to flow, the outside air enters the power amplifier body 1 after dust is filtered by the filter cotton 15, then the outside air enters the radiating chamber 3 with the heat in the power amplifier body 1, and finally is discharged from the air outlet 4, thereby timely radiating the power amplifier body 1.

Embodiment III:

on the basis of the second embodiment, when the power amplifier is used, the dust cover 13 can be placed above the power amplifier body 1, the limiting plate 18 is pulled, the limiting plate 18 drives the pull rod 17 and the insert block 19 to move in the fixing groove 22, the spring 20 is compressed, the fixing block 21 is inserted into the fixing groove 22, the limiting plate 18 is loosened, under the action of the spring 20, the insert block 19 is inserted into the fixing block 21, thereby fixing the dust cover 13 on the power amplifier body 1, after long-time use, the dust cover 13 can prevent dust from falling into the air inlet 14, a lot of dust can fall on the dust cover 13, at the moment, the limiting plate 18 can be pulled, the limiting plate 18 drives the pull rod 17 and the insert block 19 to move, the spring 20 is compressed, the insert block 19 is separated from the fixing block 21, and the dust cover 13 can be detached from the power amplifier body 1 to be cleaned by pulling the dust cover 13 upwards. In the process of using the power amplifier, some signal connectors 23 are not needed to be used, at the moment, the cover body 24 can be covered on the signal connectors 23 to prevent dust, when the signal connectors 23 are needed to be used, the cover body 24 is pulled and opened, and the rubber strip 25 can connect the cover body 24 to the power amplifier body 1, so that the cover body 24 is prevented from being lost when not used.

In all the above mentioned embodiments, the welding, the matching connection of the bolt and the nut, the bolt or the screw connection or other known connection modes can be selected according to the actual situation, and are not described in detail herein, the above description refers to the write-in fixed connection, and the welding is preferentially considered, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art should be covered by the protection scope of the present utility model if the technical scheme and the inventive concept thereof are equivalent or changed within the scope of the present utility model.

Claims

1. The utility model provides a broadcast power amplifier, includes power amplifier body (1), its characterized in that, power amplifier body (1) lower extreme is equipped with a plurality of through-holes (2), power amplifier body (1) lower extreme is equipped with heat dissipation room (3), power amplifier body (1) communicates with each other through-hole (2) with heat dissipation room (3), heat dissipation room (3) lower extreme evenly is equipped with a plurality of apopores (4), one side is equipped with motor (5) in heat dissipation room (3), motor (5) drive end is equipped with bull stick (6), be equipped with a plurality of driving chambers (7) in heat dissipation room (3), bull stick (6) one end is passed a plurality of driving chambers (7) and is connected with heat dissipation room (3) rotation, every be equipped with in driving chamber (7) drive conical gear (8), a plurality of drive conical gear (8) all are connected with bull stick (6) fixed connection, every drive conical gear (8) meshing is connected with driven conical gear (9), driven conical gear (9) upper end is equipped with (10), it is equipped with fan (7) to pass in the rotation axis (7) and be connected with fan (11) respectively to rotate in a plurality of fan (7) and fan (11) side down, the power amplifier is characterized in that a dustproof assembly is arranged on the power amplifier body (1) and comprises a dustproof cover (13) movably arranged on the power amplifier body (1).

2. A broadcast power amplifier according to claim 1, characterized in that: the power amplifier comprises a power amplifier body (1), wherein a plurality of radiating fins (12) are uniformly arranged on two sides of the power amplifier body (1), two air inlets (14) are formed in the upper end of the power amplifier body (1), and filter cotton (15) is respectively arranged on the two air inlets (14).

3. A broadcast power amplifier according to claim 1, characterized in that: four fixing assemblies are symmetrically arranged on two sides of the dust cover (13), and each fixing assembly comprises a fixing shell (16) fixedly arranged on one side of the dust cover (13).

4. A broadcast power amplifier according to claim 3, characterized in that: the fixed shell (16) is provided with a pull rod (17) in a drawing way, one end of the pull rod (17) is provided with a limiting plate (18), and the other end of the pull rod penetrates through the fixed shell (16) to be connected with an inserting block (19).

5. The broadcast power amplifier of claim 4, wherein: a spring (20) is arranged between the insert block (19) and the fixed shell (16), the spring (20) is movably sleeved on the outer side of the pull rod (17), one end of the insert block (19) penetrates through the fixed shell (16) and is connected with a fixed block (21) in a drawing and inserting mode, and the lower end of the fixed block (21) is fixedly connected with the power amplifier body (1).

6. The broadcast power amplifier of claim 5, wherein: the lower end of the dust cover (13) is inwards recessed to form a fixing groove (22) matched with the fixing block (21) and the inserting block (19).

7. A broadcast power amplifier according to claim 1, characterized in that: a plurality of signal connectors (23) are arranged on one side of the power amplifier body (1), a cover body (24) is movably sleeved on each signal connector (23), and a rubber strip (25) is connected between one side of the cover body (24) and the power amplifier body (1).