CN211019830U - Heat radiation structure for power amplifier - Google Patents
Heat radiation structure for power amplifier Download PDFInfo
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- CN211019830U CN211019830U CN201922358563.9U CN201922358563U CN211019830U CN 211019830 U CN211019830 U CN 211019830U CN 201922358563 U CN201922358563 U CN 201922358563U CN 211019830 U CN211019830 U CN 211019830U
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- heat dissipation
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- heat
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Abstract
The utility model discloses a heat radiation structure for power amplifier, the load simulator comprises a case, the machine case includes the side board, places heat dissipation cold drawing, kuppe and radiator fan in the machine case in still including, heat dissipation cold drawing, kuppe, radiator fan three's length sum and quick-witted case length equal, the side board is equipped with the air outlet, heat dissipation cold drawing air-out end is fixed with the side board laminating, heat dissipation cold drawing air inlet end is sealed fixed with the kuppe, radiator fan is fixed with the kuppe, the kuppe is arranged in sealing the air current that blows off radiator fan in the kuppe, makes the air current can only flow through from heat dissipation cold drawing. The utility model discloses a simplify power amplifier's heat radiation structure, reduce the assembly process, improve production efficiency, reduction in production cost's purpose.
Description
Technical Field
The utility model relates to a power amplifier field particularly, relates to a heat radiation structure for power amplifier.
Background
A power amplifier in the field of communications refers to a signal processing device, typically applied to a radar transmitter or receiver front end of satellite communications; or communications, electromagnetic interference, signal suppression for weaponry; the equipment test in the EMC electromagnetic compatibility test environment is commonly used in the civil field. The whole machine heat dissipation efficiency of the existing power amplifier equipment is usually about 10% -30%, when the output power of the power amplifier equipment reaches the power magnitude of tens of watts, hundreds of watts or even kilowatts, the heat consumption of the corresponding equipment is often several times or even tens of times of the output power, and under the condition, the heat dissipation requirement cannot be met only by natural convection of the equipment. In order to ensure the normal operation of the equipment, forced convection heat dissipation devices must be added.
The prior published Chinese patent with the patent name of 'an air flow heat dissipation structure for a power amplifier' and the application number of 201120389128.3 discloses a technical scheme of additionally arranging air deflectors at two ends of a heat dissipation aluminum pipe, which avoids the reflection of air flow at the end face of an air inlet of the heat dissipation aluminum pipe, enables the air to flow into and out of the heat dissipation aluminum pipe more smoothly and improves the heat dissipation efficiency.
However, in the above-mentioned chinese patent, the air deflector is installed at the air outlet end of the heat dissipation aluminum pipe, and then the air deflector is hermetically connected to the chassis, so that the number of parts of the power amplifier is increased, the structure of the power amplifier is complicated, and the assembling process of the hermetic connection increases the assembling process and time, and reduces the production efficiency. In addition, the air deflector used in the above-mentioned chinese patent is complex in structure, and also increases the production cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a heat radiation structure for power amplifier, it can solve above-mentioned chinese patent and lead to the power amplifier structure complicated, and assembly process is many, makes production efficiency reduce, and power amplifier's heat radiation structure is simplified in the problem that manufacturing cost increases, reduces assembly process, improves production efficiency, reduction in production cost's purpose.
The utility model provides a heat radiation structure for power amplifier, includes the quick-witted case, the quick-witted case includes the side board, places heat dissipation cold plate, kuppe and radiator fan in the quick-witted case in still including, the length sum of heat dissipation cold plate, kuppe, radiator fan three equals with quick-witted case length, the side board is equipped with the air outlet, heat dissipation cold plate air-out end is fixed with the laminating of side board, heat dissipation cold plate air inlet end is sealed fixed with the kuppe, radiator fan is fixed with the kuppe, the kuppe is arranged in sealing the air current that blows off radiator fan in the kuppe, makes the air current can only flow through from heat dissipation cold plate.
In one embodiment, the air guide sleeve is a flat rectangular shell, a plurality of mounting holes are formed in the large end face of the air guide sleeve, the number of the mounting holes is equal to that of the heat dissipation fans, and the heat dissipation fans and the air guide sleeve are fixed and aligned with the mounting holes.
In one embodiment, a sealing ring is arranged between the flow guide cover and the heat dissipation cold plate.
In one embodiment, the heat dissipation cold plate is rectangular, and a plurality of heat dissipation holes are formed in the heat dissipation cold plate and penetrate through the heat dissipation cold plate along the length direction of the heat dissipation cold plate.
In one embodiment, the shape of the air outlet is the same as that of the heat dissipation cold plate, the end face of the heat dissipation cold plate faces the air outlet, and the airflow flowing out of the heat dissipation cold plate is discharged out of the chassis from the air outlet.
In one embodiment, the air inlet end of the cooling fan is provided with a dustproof metal mesh.
In one embodiment, the cold plate is made of an aluminum alloy sheet material.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
the embodiment of the utility model utilizes the sealed connection of the air guide sleeve and the heat dissipation cold plate, and the cold air flow blown out by the heat dissipation fan is sealed in the air guide sleeve through the air guide sleeve, so that the cold air of the air guide sleeve can only flow into the heat dissipation cold plate, thereby eliminating the obstruction of the cold air flow reflected from the end surface of the heat dissipation cold plate to the air inlet of the heat dissipation cold plate, and the air guide sleeve can meet the functional requirement only by being a hollow shell with two ends being open ends, thereby realizing the purposes of simplifying the air guide structure and reducing the production cost; and the air outlet is arranged on the side panel, the heat dissipation cold plate is directly attached to the side panel and aligned to the air outlet, so that the hot air of the heat dissipation cold plate can flow out of the case without hindrance and directly, the overall structure of the power amplifier is simplified, the number of parts is reduced, the assembly process is reduced, the production efficiency is improved, and the production cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of a heat dissipation cold plate in an embodiment of the present invention;
fig. 3 is a schematic structural view of the air guide sleeve in the embodiment of the present invention;
fig. 4 is a schematic structural view of a side panel in an embodiment of the present invention.
Icon:
1-radiating cold plate, 2-dome, 3-radiating fan, 4-side panel and 41-air outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.
Examples
Referring to fig. 1 to 4, a heat dissipation structure for a power amplifier includes a chassis, the chassis includes a side panel 4, and further includes a heat dissipation cold plate 1, a flow guide cover 2, and a heat dissipation fan 3, which are disposed inside the chassis, a sum of lengths of the heat dissipation cold plate 1, the flow guide cover 2, and the heat dissipation fan 3 is equal to a length of the chassis, the side panel 4 is provided with an air outlet 41, an air outlet end of the heat dissipation cold plate 1 is fixedly attached to the side panel 4, an air inlet end of the heat dissipation cold plate 1 is fixedly sealed with the flow guide cover 2, the heat dissipation fan 3 is fixed with the flow guide cover 2, and the flow guide cover 2 is used for sealing an air flow blown out by the heat dissipation fan 3 in the flow guide cover 2, so that.
In order to simplify the heat radiation structure of the power amplifier, reduce the assembly process, raise production efficiency, the purpose to reduce production cost, this technical scheme offers a through hole as the air outlet in the side panel 4 of the chassis, the air-out end and side panel 4 of the cold plate 1 of heat dissipation are laminated and fixed, make the air-out end of the cold plate 1 of heat dissipation face the air outlet, and the air outlet 41 is blocked up to the air-out end sealing of the cold plate 1 of heat dissipation, with the sealed connection of air inlet end of the cold plate 1 of heat dissipation of air deflector 2, install the radiator fan 3 on the air deflector 2, the sealed connection of air deflector 2 and 1 air inlet end of the cold plate of heat dissipation can be the bonding, can also be sealed with the seal washer, can also. When the cooling air duct is used, the cooling air outside the case is blown into the air guide sleeve 2 by the cooling fan 3, and the air guide sleeve 2 and the cooling plate 1 are sealed, so even if the cooling air flow blown by the cooling fan 3 meets the end face of the cooling plate 1 and is reflected, the cooling air only flows in the air guide sleeve 2, the cooling air cannot be leaked out of the air guide sleeve 2, the cooling air of the air guide sleeve 2 only can flow into the cooling plate 1, the obstruction of the cooling air flow reflected by the end face of the cooling plate 1 on the air inlet of the cooling plate 1 is eliminated, and the integrity of the cooling air duct is ensured. And, the cold air that gets into in the heat dissipation cold drawing 1 becomes hot-air after carrying out the heat exchange with heat dissipation cold drawing 1, and hot-air flows out from heat dissipation cold drawing 1 air-out end again, because heat dissipation cold drawing 1 air-out end is just to and blocks up the air outlet 41 of side board 4, so the hot-air of heat dissipation cold drawing 1 flows outside quick-witted case unimpededly, directly. Compared with the prior art, the air guide sleeve 2 is hermetically connected with the heat dissipation cold plate 1, and the cold air flow blown out by the heat dissipation fan 3 is sealed in the air guide sleeve 2 through the air guide sleeve 2, so that the cold air of the air guide sleeve 2 can only flow into the heat dissipation cold plate 1, the obstruction of the cold air flow reflected from the end surface of the heat dissipation cold plate 1 to the air inlet of the heat dissipation cold plate 1 is eliminated, the air guide sleeve 2 can meet the functional requirements only by being a hollow shell with two ends being open ends, and the purposes of simplifying the air guide structure and reducing the production cost are achieved; and set up air outlet 41 in side board 4, with the direct laminating of heat dissipation cold drawing 1 and side board 4 and aim at air outlet 41, both guaranteed that the hot-air of heat dissipation cold drawing 1 can unimpededly, directly flow outside the quick-witted case, realized also simplifying power amplifier overall structure, reduce part quantity, reduce the assembly process, improve production efficiency, reduction in production cost's purpose.
The heat dissipation cold plate in the existing power amplifier is generally small in size, and is designed and produced according to the principle that which part needs to dissipate heat and the heat dissipation cold plate is installed at the corresponding position, heat dissipated by the heating element exchanges heat with cold air in the case through the heat dissipation cold plate, and hot air in the case is blown out through the heat dissipation fan, so that part of hot air stays and gathers in the case, all elements in the case are heated by the hot air, and the actual heat dissipation efficiency of the power amplifier is reduced.
In order to improve the heat dissipation efficiency of the power amplifier, the technical scheme amplifies the size of the heat dissipation cold plate 1, so that the sum of the lengths of the heat dissipation cold plate 1, the air guide sleeve 2 and the heat dissipation fan 3 is equal to the length of a case, when the power amplifier is used, the heat dissipated by a heating element in the case heats the heat dissipation cold plate 1, the heat dissipation fan 3 directly blows cold air outside the case into the air guide sleeve 2, the cold air flows into a heat dissipation air duct in the heat dissipation cold plate 1 from an air inlet end of the heat dissipation cold plate 1, the cold air exchanges heat with the heat dissipation cold plate 1 in the heat dissipation air duct, the temperature of the heat dissipation cold plate 1 is reduced, the heat absorbed by the cold air is changed into hot air, and then the hot air directly flows out of the case from an air outlet end of the heat dissipation cold plate 1, compared with the prior art, the heat dissipated by the heat dissipation, and then the cold air blown out by the cooling fan 3 directly exchanges heat with the cooling plate 1, and finally the hot air directly flows out of the case from the air outlet end of the cooling plate 1, so that the hot air is prevented from staying and gathering in the case, and the heat dissipation efficiency of the power amplifier is improved.
In one embodiment, the air guide sleeve 2 is a flat rectangular shell, a plurality of mounting holes are formed in the large end face of the air guide sleeve 2, the number of the mounting holes is equal to the number of the heat dissipation fans 3, and the heat dissipation fans 3 are fixed with the air guide sleeve 2 and aligned with the mounting holes.
In order to fix the heat radiation fan 3 and the air guide sleeve 2, the air guide sleeve 2 is provided with a plurality of mounting holes, the heat radiation fan 3 is installed by aligning the mounting holes during assembly, and the number of the mounting holes is equal to that of the heat radiation fan 3.
In one embodiment, a sealing ring is arranged between the air guide sleeve 2 and the heat dissipation cold plate 1.
In order to avoid the cold air blown out by the fan heater 3 from leaking out of the air guide sleeve 2, the cold air of the air guide sleeve 2 can only flow into the heat dissipation cold plate 1, and the sealing ring is used for sealing between the air guide sleeve 2 and the heat dissipation cold plate 1 in the technical scheme.
In one embodiment, the heat-dissipating cold plate 1 is rectangular, and a plurality of heat-dissipating holes are formed in the heat-dissipating cold plate 1, and the heat-dissipating holes penetrate through the heat-dissipating cold plate 1 along the length direction of the heat-dissipating cold plate 1.
In one embodiment, the shape of the air outlet 41 is the same as that of the heat-dissipating cold plate 1, the end surface of the heat-dissipating cold plate 1 faces the air outlet 41, and the air flow flowing out of the heat-dissipating cold plate 1 is exhausted from the air outlet out of the enclosure.
The case of the conventional power amplifier is provided with the grille as the air outlet 41, but because the grille bars have a certain width, the hot air flowing out of the heat dissipation cold plate 1 meets the grille bars and then is reflected back to the case, thereby reducing the heat dissipation efficiency.
In order to improve the fan thermal efficiency, this technical scheme sets up a through-hole as air outlet 41 on the side board 4 of quick-witted case to aim at the air-out end of heat dissipation cold drawing 1 and plug up air outlet 41, when using, the hot-air that heat dissipation cold drawing 1 flows out just can unimpededly, directly flow out quick-witted case through air outlet 41, compared with the prior art, grid strip has been saved to air outlet 41 among this technical scheme, can reflect back to quick-witted case after having avoided heat dissipation cold drawing 1 to flow out to the hot-air meets grid strip, the radiating efficiency has been improved.
In one embodiment, the air inlet end of the heat dissipation fan 3 is provided with a dustproof metal mesh.
In one embodiment, the cold plate 1 is made of an aluminum alloy plate.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A heat dissipation structure for a power amplifier, comprising a chassis including a side panel (4), characterized in that: the air-cooling fan is characterized by further comprising a heat-dissipating cold plate (1), a flow guide cover (2) and a heat-dissipating fan (3) which are arranged in the chassis, the sum of the lengths of the heat-dissipating cold plate (1), the flow guide cover (2) and the heat-dissipating fan (3) is equal to the length of the chassis, an air outlet (41) is formed in the side panel (4), the air outlet end of the heat-dissipating cold plate (1) is fixedly attached to the side panel (4), the air inlet end of the heat-dissipating cold plate (1) is fixedly sealed with the flow guide cover (2), the heat-dissipating fan (3) is fixed with the flow guide cover (2), and the flow guide cover (2) is used for sealing airflow blown out by the heat-dissipating fan (3) in the flow guide cover (2) so.
2. The heat dissipation structure for a power amplifier according to claim 1, wherein: the air guide sleeve (2) is a flat rectangular shell, a plurality of mounting holes are formed in the large end face of the air guide sleeve (2), the number of the mounting holes is equal to that of the heat dissipation fans (3), and the heat dissipation fans (3) are fixed with the air guide sleeve (2) and aligned to the mounting holes.
3. A heat dissipation structure for a power amplifier according to claim 2, wherein: and a sealing ring is arranged between the air guide sleeve (2) and the heat dissipation cold plate (1).
4. The heat dissipation structure for a power amplifier according to any one of claims 1 to 3, wherein: the heat dissipation cold plate (1) is cuboid, a plurality of heat dissipation holes are formed in the heat dissipation cold plate (1), and the heat dissipation holes penetrate through the heat dissipation cold plate (1) along the length direction of the heat dissipation cold plate (1).
5. The heat dissipation structure for a power amplifier according to claim 1, wherein: the shape of the air outlet (41) is the same as that of the heat dissipation cold plate (1), the end face of the heat dissipation cold plate (1) is opposite to the air outlet (41), and air flow flowing out of the heat dissipation cold plate (1) is discharged out of the case from the air outlet (41).
6. The heat dissipation structure for a power amplifier according to claim 1, wherein: and the air inlet end of the heat radiation fan (3) is provided with a dustproof metal net.
7. The heat dissipation structure for a power amplifier according to claim 1, wherein: the heat dissipation cold plate (1) is made of an aluminum alloy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922358563.9U CN211019830U (en) | 2019-12-24 | 2019-12-24 | Heat radiation structure for power amplifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922358563.9U CN211019830U (en) | 2019-12-24 | 2019-12-24 | Heat radiation structure for power amplifier |
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| Publication Number | Publication Date |
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| CN211019830U true CN211019830U (en) | 2020-07-14 |
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| CN201922358563.9U Active CN211019830U (en) | 2019-12-24 | 2019-12-24 | Heat radiation structure for power amplifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453509A (en) * | 2021-06-28 | 2021-09-28 | 常州博瑞电力自动化设备有限公司 | Air guide sleeve and production method thereof |
-
2019
- 2019-12-24 CN CN201922358563.9U patent/CN211019830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453509A (en) * | 2021-06-28 | 2021-09-28 | 常州博瑞电力自动化设备有限公司 | Air guide sleeve and production method thereof |
| CN113453509B (en) * | 2021-06-28 | 2023-03-24 | 常州博瑞电力自动化设备有限公司 | Air guide sleeve and production method thereof |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210325 Address after: 621000 No.59, middle section of Qinglong Avenue, Fucheng District, Mianyang City, Sichuan Province (National University Science Park, Southwest University of science and Technology) Patentee after: Mianyang Tianhe Microwave Technology Co.,Ltd. Address before: 611731 No. 88 Tianchen Road, Chengdu High-tech Zone, Sichuan Province Patentee before: SICHUAN TIANHESHENG ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |