CN212278654U - Heat radiation structure of power amplifier - Google Patents
Heat radiation structure of power amplifier Download PDFInfo
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- CN212278654U CN212278654U CN202020318827.8U CN202020318827U CN212278654U CN 212278654 U CN212278654 U CN 212278654U CN 202020318827 U CN202020318827 U CN 202020318827U CN 212278654 U CN212278654 U CN 212278654U
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- heat dissipation
- power amplifier
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- heat
- equipment shell
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Abstract
The utility model belongs to the field of power amplifiers, and particularly discloses a heat dissipation structure of a power amplifier, which comprises a fixed substrate, an equipment shell and heat dissipation fan blades; the closed cover plate is opened through the turnover connecting piece, the power amplifier is placed on the hollow mounting groove in the equipment shell through the opening end, the power amplifier is fixed on the heat conduction chassis and fixed through the limiting clamping block, the heat conduction chassis conducts heat at the bottom of the power amplifier to the heat dissipation sheet, and the bottom of the power amplifier is cooled through the heat dissipation sheet and the heat dissipation pipeline; meanwhile, the driving motor is started through the master control button, so that the driving motor drives the radiating fan blades to rotate, radiating convection is formed in the equipment shell, heat is taken out, and impurities in the air are prevented from entering the power amplifier by the filter screen; the utility model discloses simple structure, the practicality is strong, can all-round dispel the heat, and the radiating efficiency is high.
Description
Technical Field
The utility model relates to a power amplifier field specifically is a power amplifier's heat radiation structure.
Background
A power amplifier, referred to as "power amplifier" for short, refers to an amplifier that can generate maximum power output to drive a load (e.g., a speaker) under a given distortion rate. The power amplifier plays a role of 'organization and coordination' in the whole sound system, and governs to some extent whether the whole system can provide good sound quality output. At present, a power amplifier converts power of a power supply into current changing according to an input signal by using a current control function of a triode or a voltage control function of a field effect transistor, and the power amplifier is an important component of microwave equipment. The high power amplifier has high power consumption and high frequency, and has high requirement on heat dissipation efficiency. The microwave circuit failure is also caused by the interruption of the signal transmission due to the damage of the integrated circuit caused by over-high temperature, so that the internal temperature of the amplifier can be lowered by adding an auxiliary heat dissipation device to make the internal components operate normally.
Disclosure of Invention
An object of the utility model is to provide a power amplifier's heat radiation structure 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 heat radiation structure of a power amplifier comprises a fixed substrate, an equipment shell and a heat radiation fan sheet; the fixing substrate is provided with a hollow mounting groove, and the edge of the hollow mounting groove is provided with a corresponding limiting fixture block; a heat conduction chassis is fixed in the hollowed-out mounting groove, and a plurality of heat dissipation sheets which are uniformly spaced are connected below the heat conduction chassis; an accommodating groove is formed between the heat radiating fins, and heat radiating pipelines are distributed in the accommodating groove; an equipment shell is fixed at the outer edge of the fixed base plate, an opening end is arranged at the top end of the equipment shell, a turnover connecting piece is fixed at the opening end, and a closed cover plate corresponding to the opening end is mounted on the turnover connecting piece; the side of the equipment shell is provided with a vent, and two side ends of the vent are provided with filter screens; a cross-shaped support is fixed in the vent hole, a driving motor is installed on the cross-shaped support, the output end of the driving motor is connected with a rotating shaft, and a radiating fan blade is installed on the rotating shaft.
Preferably, the edge of the hollowed-out mounting groove is provided with a clamping caulking groove corresponding to the bottom of the power amplifier, and the limiting clamping block is fixed outside the clamping caulking groove.
Preferably, the cooling liquid is filled in the heat dissipation pipeline, the tail end of the heat dissipation pipeline is connected to the cooler, and the cooler is fixed at the edge of the outer side of the equipment shell.
Preferably, the vent on the outer end face in the equipment shell is provided with a corresponding annular caulking groove, a filter screen frame is movably mounted on the annular caulking groove, and a filter screen is fixed in the filter screen frame.
Preferably, the opposite two side surfaces of the equipment shell are provided with ventilation openings, the other two side surfaces are provided with heat dissipation through holes, and filter screens are also arranged at the heat dissipation through holes.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure, strong practicability, all-round heat dissipation and high heat dissipation efficiency; the closed cover plate is opened through the turnover connecting piece, the power amplifier is placed on the hollow mounting groove in the equipment shell through the opening end, the power amplifier is fixed on the heat conduction chassis and fixed through the limiting clamping block, the heat conduction chassis conducts heat at the bottom of the power amplifier to the heat dissipation sheet, and the bottom of the power amplifier is cooled through the heat dissipation sheet and the heat dissipation pipeline; meanwhile, the driving motor is turned on through the master control button, so that the driving motor drives the radiating fan blades to rotate, radiating convection is formed in the equipment shell, heat is taken out, and impurities in the air are prevented from entering the power amplifier by the filter screen.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. fixing the substrate; 2. a limiting clamping block; 3. a heat conducting chassis; 4. a heat-radiating sheet; 5. a heat dissipation pipe; 6. an equipment housing; 7. turning over the connecting piece; 8. sealing the cover plate; 9. a vent; 10. a filter screen; 11. a cross-shaped bracket; 12. a drive motor; 13. a rotating shaft; 14. a heat radiation fan sheet.
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 "vertical", "upper", "lower", "horizontal", 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.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 according to specific situations by those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: a heat radiation structure of a power amplifier comprises a fixed substrate 1, a device shell 6 and a heat radiation fan 14; the fixed base plate 1 is provided with a hollow mounting groove, and the edge of the hollow mounting groove is provided with a corresponding limiting fixture block 2; a heat conduction chassis 3 is fixed in the hollowed-out mounting groove, and a plurality of heat dissipation pieces 4 which are uniformly spaced are connected below the heat conduction chassis 3; an accommodating groove is formed between the heat radiating fins 4, and radiating pipelines 5 are distributed in the accommodating groove; an equipment shell 6 is fixed at the outer edge of the fixed base plate 1, an opening end is arranged at the top end of the equipment shell 6, a turnover connecting piece 7 is fixed at the opening end, and a closed cover plate 8 corresponding to the opening end is installed on the turnover connecting piece 7; the side of the equipment shell 6 is provided with a vent 9, and two side ends of the vent 9 are provided with filter screens 10; a cross-shaped support 11 is fixed in the ventilation opening 9, a driving motor 12 is installed on the cross-shaped support 11, the output end of the driving motor 12 is connected with a rotating shaft 13, and a heat dissipation fan 14 is installed on the rotating shaft 13.
Further, fretwork mounting groove edge is provided with the joint caulking groove corresponding to power amplifier bottom, and spacing fixture block 2 is fixed in the joint caulking groove outside.
Furthermore, cooling liquid is filled in the heat dissipation pipeline 5, the tail end of the heat dissipation pipeline 5 is connected to a cooler, and the cooler is fixed on the edge of the outer side of the equipment shell 6.
Furthermore, the ventilation openings 9 on the inner and outer end surfaces of the equipment shell 6 are provided with corresponding annular caulking grooves, the annular caulking grooves are movably provided with filter screen frames, and filter screens 10 are fixed in the filter screen frames.
Furthermore, two opposite side surfaces of the equipment shell 6 are provided with air vents 9, the other two side surfaces are provided with heat dissipation through holes, and filter screens 10 are also arranged at the heat dissipation through holes.
The working principle is as follows: a hollow mounting groove is formed in the fixed base plate 1, and a corresponding limiting fixture block 2 is arranged at the edge of the hollow mounting groove; a heat conduction chassis 3 is fixed in the hollowed-out mounting groove, and a plurality of heat dissipation pieces 4 which are uniformly spaced are connected below the heat conduction chassis 3; an accommodating groove is formed between the heat radiating fins 4, a radiating pipeline 5 is distributed in the accommodating groove, cooling liquid is filled in the radiating pipeline 5, the tail end of the radiating pipeline 5 is connected to a cooler, and the cooler is fixed at the edge of the outer side of the equipment shell 6;
an equipment shell 6 is fixed at the outer edge of the fixed base plate 1, an opening end is arranged at the top end of the equipment shell 6, a turnover connecting piece 7 is fixed at the opening end, and a closed cover plate 8 corresponding to the opening end is installed on the turnover connecting piece 7; the closed cover plate 8 is opened through the turnover connecting piece 7, the power amplifier is placed on the hollowed-out mounting groove in the equipment shell 6 through the opening end, the power amplifier is fixed on the heat conduction chassis 3 and is fixed through the limiting clamping block 2, the heat conduction chassis 3 conducts the heat at the bottom of the power amplifier to the heat dissipation sheet 4, and the bottom of the power amplifier is cooled through the heat dissipation sheet 4 and the heat dissipation pipeline 5;
the side of the equipment shell 6 is provided with a vent 9, and two side ends of the vent 9 are provided with filter screens 10; vent 9 internal fixation has cross support 11, installs driving motor 12 on the cross support 11, and axis of rotation 13 is connected to driving motor 12 output, installs heat dissipation fan piece 14 on the axis of rotation 13, opens driving motor 12 through total control button simultaneously for driving motor 12 motor drive heat dissipation fan piece 14 rotates, makes the interior heat dissipation convection current that forms of equipment shell 6, takes the heat out, and filter screen 10 prevents that impurity from getting into power amplifier inside in the air.
It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A heat radiation structure of a power amplifier is characterized in that: comprises a fixed substrate (1), an equipment shell (6) and a heat dissipation fan blade (14); the fixing base plate (1) is provided with a hollowed-out mounting groove, and the edge of the hollowed-out mounting groove is provided with a corresponding limiting fixture block (2); a heat conduction chassis (3) is fixed in the hollowed-out mounting groove, and a plurality of heat dissipation sheets (4) which are uniformly spaced are connected below the heat conduction chassis (3); an accommodating groove is formed between the heat dissipation sheets (4), and heat dissipation pipelines (5) are distributed in the accommodating groove; an equipment shell (6) is fixed at the outer edge of the fixed base plate (1), an opening end is arranged at the top end of the equipment shell (6), a turnover connecting piece (7) is fixed at the opening end, and a closed cover plate (8) corresponding to the opening end is installed on the turnover connecting piece (7); a ventilation opening (9) is formed in the side edge of the equipment shell (6), and filter screens (10) are arranged at the two side ends of the ventilation opening (9); vent (9) internal fixation has cross support (11), installs driving motor (12) on cross support (11), and axis of rotation (13) are connected to driving motor (12) output, install radiating fan piece (14) on axis of rotation (13).
2. The heat dissipation structure of a power amplifier according to claim 1, wherein: the edge of the hollowed-out mounting groove is provided with a clamping caulking groove corresponding to the bottom of the power amplifier, and the limiting clamping block (2) is fixed outside the clamping caulking groove.
3. The heat dissipation structure of a power amplifier according to claim 1, wherein: the cooling pipeline (5) is filled with cooling liquid, the tail end of the cooling pipeline (5) is connected to a cooler, and the cooler is fixed on the edge of the outer side of the equipment shell (6).
4. The heat dissipation structure of a power amplifier according to claim 1, wherein: the air vents (9) on the inner end face and the outer end face of the equipment shell (6) are provided with corresponding annular caulking grooves, filter screen frames are movably mounted on the annular caulking grooves, and filter screens (10) are fixed in the filter screen frames.
5. The heat dissipation structure of a power amplifier according to claim 1, wherein: the device is characterized in that ventilation openings (9) are formed in two opposite side faces of the device shell (6), heat dissipation through holes are formed in the other two side faces of the device shell, and filter screens (10) are also arranged at the heat dissipation through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020318827.8U CN212278654U (en) | 2020-03-13 | 2020-03-13 | Heat radiation structure of power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020318827.8U CN212278654U (en) | 2020-03-13 | 2020-03-13 | Heat radiation structure of power amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN212278654U true CN212278654U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020318827.8U Active CN212278654U (en) | 2020-03-13 | 2020-03-13 | Heat radiation structure of power amplifier |
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| CN (1) | CN212278654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114585226A (en) * | 2022-03-07 | 2022-06-03 | 南通联航通讯科技有限公司 | Energy-saving power amplifier cooling device with heat exchange |
-
2020
- 2020-03-13 CN CN202020318827.8U patent/CN212278654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114585226A (en) * | 2022-03-07 | 2022-06-03 | 南通联航通讯科技有限公司 | Energy-saving power amplifier cooling device with heat exchange |
| CN114585226B (en) * | 2022-03-07 | 2023-10-03 | 南通联航通讯科技有限公司 | Energy-saving power amplifier cooling device with heat exchange |
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