CN110602925A - Heat dissipation piece and communication heat dissipation system - Google Patents
Heat dissipation piece and communication heat dissipation system Download PDFInfo
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- CN110602925A CN110602925A CN201910875304.5A CN201910875304A CN110602925A CN 110602925 A CN110602925 A CN 110602925A CN 201910875304 A CN201910875304 A CN 201910875304A CN 110602925 A CN110602925 A CN 110602925A
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- heat
- heat dissipation
- radiating
- radiator
- heat transfer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a heat dissipation piece and a communication heat dissipation system. The heat dissipation part is matched with a communication equipment radiator for use, the radiator is provided with a heat dissipation main part, a through hole is formed in the heat dissipation main part, and the heat dissipation part comprises a heat conduction part, a heat transfer part and a heat dissipation part; the heat conducting part is contacted with a heating device of the communication equipment in the radiator through the through hole and is connected with the heat transfer part; the heat transfer part is connected with the radiating part and transmits the heat absorbed by the heat transfer part to the radiating part for radiating. Compared with the prior art, the heat sink contacts with the heating device of the communication equipment in the radiator through the through hole of the heat dissipation main body of the radiator, heat of the heating device during operation is conducted out and dissipated, the heat dissipation capacity of the radiator is enhanced through the heat sink, the heat dissipation capacity of the communication equipment is provided, unstable operation of the communication equipment caused by untimely heat dissipation of the communication equipment can be avoided, other electronic equipment is burnt out, and safety is guaranteed.
Description
Technical Field
The invention relates to the field of communication and heat dissipation technologies, in particular to a heat dissipation piece and a communication heat dissipation system.
Background
Due to the wide coverage of communication at present, communication equipment such as a communication base station and the like also develops towards high capacity and high power, the continuous improvement of the power density puts higher requirements on the heat dissipation capacity of products, particularly self-cooling heat dissipation products with high reliability and free maintenance, and the heat dissipation capacity of the traditional heat dissipater has no room for improvement. How to improve the heat dissipation capability and create a new heat dissipation piece becomes a problem which needs to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the heat dissipation piece and the communication heat dissipation system are provided, and the problem that the heat dissipation of the communication equipment is insufficient due to the limited heat dissipation capacity of the heat sink of the communication equipment in the prior art is solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a heat dissipation piece is matched with a communication equipment radiator for use, the radiator is provided with a heat dissipation main piece, a through hole is formed in the heat dissipation main piece, and the heat dissipation piece comprises a heat conduction part, a heat transfer part and a heat dissipation part; the heat conducting part is contacted with a heating device of the communication equipment in the radiator through the through hole and is connected with the heat transfer part; the heat transfer part is connected with the radiating part and transmits the heat absorbed by the heat transfer part to the radiating part for radiating.
The heat dissipation part comprises a plurality of heat dissipation fins, and a heat dissipation ventilation flow channel is formed by a gap between every two adjacent heat dissipation fins.
The radiating fin comprises a radiating fixed part, a first radiating sub-part and a second radiating sub-part, wherein the first radiating sub-part and the second radiating sub-part are respectively positioned on two sides of the radiating fixed part; the heat transfer part comprises a strip-shaped heat transfer element, one end of the heat transfer element is connected with the heat transfer part, and the other end of the heat transfer element penetrates through the heat dissipation stator part.
The first heat radiating sub-part and the heat radiating stator part form an included angle of more than or equal to 30 degrees and less than or equal to 60 degrees, and/or the second heat radiating sub-part and the heat radiating stator part form an included angle of more than or equal to 30 degrees and less than or equal to 60 degrees.
The heating device is a main heating device of the communication equipment.
In order to solve the above problems, the present invention further provides a heat dissipation system for communication equipment, comprising a heat sink and at least one heat dissipation element as described above, wherein the heat sink has a main heat dissipation element, and the main heat dissipation element is provided with a through hole; the heat conducting part is contacted with a heating device of the communication equipment in the radiator through the through hole and is connected with the heat transfer part; the heat transfer part is connected with the radiating part and transmits the heat absorbed by the heat transfer part to the radiating part for radiating.
The radiator further comprises a second radiating main body, and the first radiating main body and the second radiating main body are connected to form a closed cavity.
At least one connecting end face of the first heat dissipation main body and the second heat dissipation main body is coated with a heat insulation material, or a heat insulation piece is arranged between the connecting end faces of the first heat dissipation main body and the second heat dissipation main body.
The heat dissipation part is arranged outside the closed cavity.
The heat dissipation piece and the communication heat dissipation system have the advantages that the heat dissipation piece is matched with a communication equipment radiator for use, the radiator is provided with a first heat dissipation main piece, the first heat dissipation main piece is provided with a through hole, and the heat dissipation piece comprises a heat conduction part, a heat transfer part and a heat dissipation part; the heat conducting part is contacted with a heating device of the communication equipment in the radiator through the through hole and is connected with the heat transfer part; the heat transfer part is connected with the radiating part and transmits the heat absorbed by the heat transfer part to the radiating part for radiating. Compared with the prior art, the heat sink contacts with the heating device of the communication equipment in the radiator through the through hole of the first heat dissipation main body of the radiator, heat of the heating device during operation is conducted out and dissipated, the heat dissipation capacity of the radiator is enhanced through the heat sink, the heat dissipation capacity of the communication equipment is provided, unstable operation of the communication equipment caused by untimely heat dissipation of the communication equipment can be avoided, other electronic equipment is burnt out, and safety is guaranteed.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of a heat sink structure according to the present invention;
fig. 2 is a schematic view of an assembly structure of a heat dissipation system of a communication device according to the present invention.
In the figure, the radiator comprises a radiator body 1, a radiator body 2, a radiator body 3, a die-casting radiator upper cover 4, a die-casting radiator lower cover 5, a heating module 6, a heating module 7, a heating module 8, a main heating source 11, a heat transfer part 12, a heat conduction part 13 and a radiator part.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, the heat sink includes a heat transfer portion 11, a heat conduction portion 12 and a heat dissipation portion 13, the heat dissipation portion is used in cooperation with a communication device heat sink, the heat sink has a first heat dissipation main component, a through hole is formed in the first heat dissipation main component, one end of the heat conduction portion 12 is in contact with a heating device of the communication device in the heat sink through the through hole, the other end of the heat conduction portion is connected with the heat transfer portion 11, and the heat transfer portion 11 is connected with the heat dissipation portion 13. The heat dissipation device of the communication equipment is cooled through the heat dissipation piece, so that the heat dissipation capacity of the heat sink can be improved. It should be noted that the first heat dissipation main part is a part of the heat dissipation part of the heat sink, for example, if the heat sink is a die-cast heat sink, the first heat dissipation main part may be an upper cover of the die-cast heat sink or a lower cover of the die-cast heat sink, as the case may be. The heat conduction portion 12, the heat transfer portion 11, and the heat dissipation portion 13 are preferably configured of a high heat conduction material, such as a metal material, and a copper material may be used.
Preferably, the heat dissipation portion 13 includes a plurality of heat dissipation fins, and a gap between two adjacent heat dissipation fins forms a heat dissipation ventilation flow passage. It should be noted that the heat dissipation fins shown in fig. 1 are respectively on the front side and the back side, and specifically, may be only on the front side or the back side, and the heat dissipation fins may be parallel or non-parallel, and the specific arrangement may be determined according to specific situations. For example, the heat sink includes a heat-dissipating stator portion and first and second heat-dissipating sub-portions respectively located on both sides of the heat-dissipating stator portion; the heat transfer part 11 includes an elongated heat transfer member having one end connected to the heat transfer part and the other end passing through the heat dissipating stator part.
Preferably, the maximum distance between the heat dissipation and ventilation flow channels is greater than or equal to 6.5 mm and less than or equal to 10 mm. Specifically, when two adjacent radiating fins are fixed on the heat conducting part in parallel, the distance between the radiating and ventilating flow channels is more than or equal to 6.5 mm and less than or equal to 10 mm; when any two adjacent radiating fins are not parallel and fixed on the heat conducting part, the maximum distance between the radiating and ventilating flow channels is larger than or equal to 6.5 mm and smaller than or equal to 10 mm. Of course, the spacing between the specific heat dissipation fins is not limited to the above, and the specific maximum spacing may be set according to the specific layout.
To facilitate heat transfer, the heat transfer portion includes an elongated heat transfer element, which may be preferably selected to be a heat pipe. The heat radiating fin comprises a first heat radiating sub-part, a heat radiating fixing sub-part and a second heat radiating sub-part, one end of the heat transfer element is connected with the heat conducting part, the other end of the heat transfer element penetrates through the heat radiating fixing sub-part, specifically, a fixing through hole is formed in the heat radiating fixing sub-part, and the first heat radiating sub-part and the second heat radiating sub-part are respectively connected with two ends of the heat radiating fixing sub-part. Preferably, positive and negative preset included angles are formed between the heat radiation fixing parts and the heat radiation fixing parts respectively; the heat transfer fixing stator part penetrates through the fixing through hole to fix the radiating fin. Namely, under the same condition, a certain angle is arranged, so that the relative short heat dissipation air channel under the same length of the heat dissipation fins can be ensured, and the heat dissipation capability is improved. Preferably, the first heat dissipating sub-portion forms an angle of 30 degrees or more and 60 degrees or less with the heat dissipating stator portion, and/or the second heat dissipating sub-portion forms an angle of 30 degrees or more and 60 degrees or less with the heat dissipating stator portion.
Further, since the temperature of the main heat generating device of the communication device is high, the heat sink selects to dissipate the heat of the main heat generating device of the communication device in order to avoid affecting the communication device. The main heat generating device herein refers to a device with high power, that is, a device generating much heat.
As shown in fig. 2, the radiator comprises a radiator element 1, a radiator element 2, a die-casting radiator upper cover 3, a die-casting radiator lower cover 4, a heating module 5, a heating module 6, a main heating source 8 on the heating module 6 and a heating module 7. The heating module 6 is contacted with the upper cover 4 of the die-casting radiator for heat dissipation, and the heating module 7 is contacted with the lower cover 3 of the die-casting radiator for heat dissipation. Two main heating sources 8 on the heating module 6 are respectively contacted with the independent radiating piece 1 and the independent radiating piece 2 to radiate through high heat conduction materials. The other heat of the heating module 6 except the main heating source 8 is contacted with the lower cover 3 of the die-casting radiator for heat dissipation. The copper base plate 11 is an example of a heat conducting part, and is in contact with a heating device of communication equipment in a radiator through the through hole 31, the independent radiating piece 1 uniformly conducts heat of a main heating source 61 of the heating module 6 to radiating fins through the copper base plate 11 and a heat pipe, the radiating fins adopt short flow channels with side front and back ventilation, an appropriate inclination angle is designed according to actual sizes of the flow channels, and the obtained optimal radiating fin space can be reduced to 1/3-1/2 compared with a traditional die casting scheme, so that the radiating surface area of a unit volume is remarkably improved. It should be noted that the communication device in this embodiment may be a baseband processing unit, a radio frequency processing unit, and other communication devices, for example, taking the radio frequency processing unit as an example, the heating module 5 corresponds to a transceiver power board, and the heating module 6 corresponds to a power amplifier board, where the main heating source 8 corresponds to a power amplifier, and the heating module 7 corresponds to a duplexer.
As shown in fig. 2, the independent heat sinks 1 and 2 and the die-cast radiator upper cover 3 are air-tight by a sealing tape. And in order to ensure the heat conduction, high-performance heat conduction materials such as high-efficiency heat conduction mud, liquid metal and the like are adopted between the main heating source 8 of the heating module 6 and the copper base plate 11 of the independent radiating piece to solve the problem of interface heat conduction.
Furthermore, the heat pipe and the radiating fin exposed to the external environment can meet the requirement of corrosion resistance through painting or spraying powder so as to adapt to long-term and reliable operation under various outdoor severe environments.
Further, in order to improve the circulation of air and to improve heat dissipation, the heat dissipation portion 13 is provided outside the heat sink, specifically, outside the sealed cavity.
The heat of the main heating source 8 of the heating module 6 in the embodiment is efficiently dissipated through the independent heat dissipation part, and the temperature of devices except the main heating source is obviously reduced compared with that of a common die-casting radiator. The volume of the radiator needed by the part of devices is obviously reduced, and the radiating volume of the whole machine is further reduced. The die-casting radiator lower cover 4 for radiating heat of the heating module 5 and the die-casting radiator upper cover 3 form a closed cavity, and the combination interface is airtight through a sealing strip. The contact interface of the upper cover 3 and the lower cover 4 of the radiator can adopt a heat insulation material or a heat insulation structure to increase heat insulation, and the heat transfer of the upper cover 3 to the lower cover 4 at a high temperature is reduced, so that the heat dissipation volume required by the upper cover 3 of the die-casting radiator meeting the heat dissipation requirement can be further reduced. And the heat dissipation volume required by the whole machine is reduced again. By adopting the high-efficiency self-cooling heat pipe radiator in the embodiment as the radiator of the main heat source of the power amplification equipment and matching with the short flow channel design, the heat dissipation surface area of the unit volume is improved by 50%, and the heat dissipation capacity of the unit volume is improved by 30%.
It should be noted that the heat dissipation system of the communication device in this example includes two heat dissipation elements, and it should be understood that the heat dissipation system of the communication device may include a heat sink and at least one heat dissipation element in the first embodiment, where the heat sink includes a first heat dissipation main element, and a through hole is formed in the first heat dissipation main element; the heat conducting part is contacted with a heating device of the communication equipment in the radiator through the through hole and is connected with the heat transfer part; the heat transfer part is connected with the radiating part and transmits the heat absorbed by the heat transfer part to the radiating part for radiating. Specifically, the radiator is provided with a first radiating main part, the first radiating main part is provided with a through hole, and the heating device is arranged in the radiator; one end of the heat conducting part of the heat radiating piece is contacted with the heating device through the through hole. The radiator also comprises a second radiating main body, and the first radiating main body and the second radiating main body are connected to form a closed cavity. At least one connecting end face of the first heat dissipation main body and the second heat dissipation main body is coated with heat insulation materials, or a heat insulation piece is arranged between the connecting end faces of the first heat dissipation main body and the second heat dissipation main body. In combination with the above example, when the heat sink is a die-cast heat sink, the first heat dissipation body and the second heat dissipation body are the die-cast heat sink lower cover 4 and the die-cast heat sink upper cover 3, respectively, which may be specific, of course.
The above embodiments are merely to illustrate the technical solutions of the present invention and not to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made without departing from the spirit and scope of the present invention and it should be understood that the present invention is to be covered by the appended claims.
Claims (8)
1. A heat dissipation piece is characterized in that the heat dissipation piece is matched with a communication equipment heat dissipation device for use, the heat dissipation device is provided with a heat dissipation main part, a through hole is formed in the heat dissipation main part, and the heat dissipation piece comprises a heat conduction part, a heat transfer part and a heat dissipation part; the heat conducting part is contacted with a heating device of the communication equipment in the radiator through the through hole and is connected with the heat transfer part; the heat transfer part is connected with the radiating part and transmits the heat absorbed by the heat transfer part to the radiating part for radiating.
2. The heat sink of claim 1, wherein the heat sink portion comprises a plurality of fins, and a gap between two adjacent fins forms a heat sink ventilation flow passage;
the stator part and a first heat radiation sub-part and a second heat radiation sub-part which are respectively positioned at two sides of the heat radiation fixing sub-part; the heat transfer part comprises a strip-shaped heat transfer element, one end of the heat transfer element is connected with the heat transfer part, and the other end of the heat transfer element penetrates through the heat dissipation stator part.
3. The heat sink of claim 2, wherein the first heat sink sub-portion is at an angle of 30 degrees or greater and 60 degrees or less to the heat sink sub-portion, and/or the second heat sink sub-portion is at an angle of 30 degrees or greater and 60 degrees or less to the heat sink sub-portion.
4. An element according to any one of claims 1-3, characterised in that the heat generating device is a main heat generating device of the communication device.
5. A heat dissipation system for communication equipment, comprising a heat sink having a first main heat dissipation part with a through hole and at least one heat dissipation member as recited in any one of claims 1 to 3; the heat conducting part is contacted with a heating device of the communication equipment in the radiator through the through hole and is connected with the heat transfer part; the heat transfer part is connected with the radiating part and transmits the heat absorbed by the heat transfer part to the radiating part for radiating.
6. The heat dissipating system of claim 5, wherein the heat sink further comprises a second heat dissipating body, and the first heat dissipating body and the second heat dissipating body are connected to form a closed cavity.
7. The heat dissipating system of a communication device as claimed in claim 6, wherein at least one of the connecting end surfaces of the first heat dissipating body and the second heat dissipating body is coated with a heat insulating material, or a heat insulating member is provided between the connecting end surfaces of the first heat dissipating body and the second heat dissipating body.
8. The heat dissipation system of claim 6 or 7, wherein the heat dissipation portion is outside the enclosed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875304.5A CN110602925A (en) | 2019-09-17 | 2019-09-17 | Heat dissipation piece and communication heat dissipation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875304.5A CN110602925A (en) | 2019-09-17 | 2019-09-17 | Heat dissipation piece and communication heat dissipation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110602925A true CN110602925A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910875304.5A Pending CN110602925A (en) | 2019-09-17 | 2019-09-17 | Heat dissipation piece and communication heat dissipation system |
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| CN (1) | CN110602925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143663A1 (en) * | 2020-01-15 | 2021-07-22 | 青岛海尔空调器有限总公司 | Heat dissipation component and air conditioning outdoor unit |
-
2019
- 2019-09-17 CN CN201910875304.5A patent/CN110602925A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143663A1 (en) * | 2020-01-15 | 2021-07-22 | 青岛海尔空调器有限总公司 | Heat dissipation component and air conditioning outdoor unit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20191220 |