CN112739168A - A narrow tube collector radiator - Google Patents
A narrow tube collector radiator Download PDFInfo
- Publication number
- CN112739168A CN112739168A CN202011596308.9A CN202011596308A CN112739168A CN 112739168 A CN112739168 A CN 112739168A CN 202011596308 A CN202011596308 A CN 202011596308A CN 112739168 A CN112739168 A CN 112739168A
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- China
- Prior art keywords
- radiator
- fins
- narrow
- narrow tube
- base plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000758 substrate Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- 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
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a narrow tube type flow collecting radiator with a contraction-expansion structure, and belongs to the technical field of radiating devices. The radiator comprises base plate and a plurality of fin, and the base plate is flat cube, and base plate one side has the fin of equidistance evenly distributed, and fin thickness is 2mm ~ 4mm, 4 ~ 9 rows of narrow tubes of equipartition on the fin, and the distance between the narrow tube center line is 3mm, pipe diameter phi 1 mm. The two sides of the narrow tube are provided with a contraction-expansion angle of 15-45 degrees, so that the function of accelerating the air in the narrow tube can be realized. The radiator increases the contact area with air, improves the flow velocity of the air flowing through the narrow tube, enhances the convective heat transfer between the radiator and the air, and has the advantages of small thermal resistance, strong heat dissipation capability, light weight and the like.
Description
Technical Field
The invention relates to a radiator, in particular to a narrow-tube radiator with a contraction-expansion structure, and belongs to the technical field of radiating devices.
Background
With the continuous development of scientific technology, more and more electronic devices are developing towards miniaturization and light weight. The radiator can timely transfer heat generated by the electronic device to the surrounding environment so as to maintain high-performance operation of the electronic equipment. At present, fin radiators with the thickness of 1.3 mm-1.7 mm are mainly used in the market. The fin radiator mainly depends on the contact of the surface of the fin and air to carry out convective heat transfer, however, the thin fin has small disturbance on the air flow, and the heat cannot be fully radiated. From this, the radiator of a novel fin structure promotes heat dispersion urgently needed.
Disclosure of Invention
In view of the above, the present invention provides a narrow tube type heat collector with a contraction-expansion structure, which can effectively utilize the air flow and enhance the heat dissipation of the heat collector. The heat sink comprises a base plate and a plurality of fin parts.
The base plate (2) is shaped as a flat cube, and the length and width dimensions can be designed according to the size of the electronic device to be used. The thickness of the substrate can be designed in the range of 2mm to 5mm depending on the size of the length and width.
The fins (3) are uniformly arranged on one side of the base plate at equal intervals, the fin spacing is designed within the range of 2 mm-3 mm, and the number of the fins is determined according to the length of the base plate and the fin spacing. The thickness of each fin can be designed within the range of 2 mm-4 mm, and the height of each fin can be designed within the range of 10 mm-30 mm. Small-sized narrow tubes with the diameter phi of 1mm are longitudinally and uniformly distributed on the fins, the distance between the center lines of the narrow tubes is 3mm, and the number of the narrow tubes is designed within the range of 4-9 according to the height of the fins. The inclination angle of the two sides of the narrow pipe is 15-45 degrees.
In addition, the heat sink material in the above invention uses aluminum or copper.
In addition, the fins and the base plate of the radiator in the invention can be integrally formed, or the fins and the base plate can be fixed on the base plate in a welding and plugging mode after being respectively processed.
Has the advantages that:
(1) the invention can improve the heat dissipation capability of the radiator and enhance the heat dissipation capability. Convection heat transfer mainly occurs between the radiator and air, and the convection heat transfer formula is as follows:
Q＝hS(tw-tf)
where Q is the amount of heat exchange between the heat sink and the air, h is the convective heat transfer coefficient, S is the surface area of the heat sink in contact with the air, and tw、tfRespectively the temperature of the radiator surface and the temperature of the air. Therefore, the narrow tubes on the fins can increase the contact surface area of the radiator and air, and increase the heat transferred by the radiator, thereby improving the heat dissipation capacity.
(2) The invention can increase the air flow rate flowing through the radiator and improve the heat dissipation capability. The narrow tube structure can increase the flow velocity of air flowing through the tube, and according to the prior research, the narrow tube structure can increase the flow velocity of air flowing through the tube: h ≧ v. Therefore, the average flow velocity of the air in the radiator narrow tube is increased, and the heat exchange amount between the air and the air in the tube is increased. Compared with a single contraction structure, the contraction-expansion structure has the advantages that although the narrow tube effect is slightly reduced, the front side and the back side of the radiator do not need to be distinguished in use, and the usability of the radiator can be improved. Compared with the radiator without the narrow pipe structure, the radiator with the contraction-expansion structure can improve the heat dissipation amount by 5-10%.
(3) The invention can reduce the mass of the radiator. After the radiator fins are subjected to material removal, the overall quality of the radiator can be reduced, and the radiator fins are easier to install on small-sized electronic equipment.
Drawings
Figure 1 is a front view of a narrow tube collector heat sink of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Figure 3 is an isometric view of a narrow tube collector heat sink of the present invention.
Description of reference numerals: 1-narrow tube radiator 2-base plate 3-narrow tube fin 4-small narrow tube 5-narrow tube two-side conical open pore
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, in the embodiments of the present invention, many technical details are set forth in order to provide the reader with a better understanding of the present application, and the technical solution claimed in the claims of the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the invention relates to a slot collector heat sink, as shown in figures 1, 2 and 3, and essentially comprises a base plate (2) and a plurality of slot fins (3). The fins are uniformly arranged on one side of the base plate at equal intervals, and the fins and the base plate can be integrally formed or fixed on the base plate in a welding and plugging mode after being respectively processed.
As shown in fig. 1, the substrate 2 is a flat cube, and the length and width dimensions are generally designed according to the size of the desired electronic device. The thickness of the substrate is generally designed to be 3mm, but may be increased or decreased as appropriate depending on the size of the length and width. The surface of the cube is flat and free of obvious defects and scratches, and the smooth surface facilitates heat transfer between the electronic device and the narrow tube heat sink and also facilitates fixing the whole heat sink to the electronic device.
As shown in fig. 2, the fins (3) of the narrow tube are equally distributed on one side of the base plate. The thickness of each fin is generally designed to be 2mm, but may be increased to 4mm as appropriate depending on the number of fins and the pitch. The distance between the fins should be rounded according to the length of the base plate and the thickness of the fins so as to ensure the uniform and equidistant arrangement of the fins. The fins are provided with narrow tubes for air to flow through, the diameter of each narrow tube is phi 1mm, and the distance between the center lines is set to be 3 mm. Tapered grooves are arranged on two sides of the narrow pipe to process a contraction-expansion structure, and the contraction structure is an inclination angle of 15-45 degrees. As the air flows through the slots in the fins, it enters the slots via the constriction, and the flow rate of the air is increased due to the progressively decreasing cross-sectional area within the tube. The expansion structure reduces the narrow tube effect at the narrow tube outlet, but the average flow velocity of the air in the narrow tube is enhanced, and the contraction-expansion structure can ensure that the front side and the back side do not need to be distinguished when the narrow tube radiator is used, thereby enhancing the usability of the radiator.
The working principle is as follows: the narrow tube radiator is fixed on the electronic equipment, heat emitted by the electronic equipment is transferred into the narrow tube radiator through heat conduction, when air is blown to the surface of the narrow tube radiator at a certain initial speed, the air outside the narrow tube sweeps over the surfaces of the fins, the fins and the air perform heat convection, and the heat of the radiator is transferred to the environment. The air speed that flows through in the narrow pipe accelerates through the narrow pipe structure, and the air carries out stronger convection heat transfer in the narrow pipe, therefore more heat transfer in the fin is in the air, in transmitting to the surrounding environment to the heat-sinking capability of whole radiator has been promoted.
In summary, the above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. 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 (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596308.9A CN112739168A (en) | 2020-12-29 | 2020-12-29 | A narrow tube collector radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596308.9A CN112739168A (en) | 2020-12-29 | 2020-12-29 | A narrow tube collector radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112739168A true CN112739168A (en) | 2021-04-30 |
Family
ID=75611421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011596308.9A Pending CN112739168A (en) | 2020-12-29 | 2020-12-29 | A narrow tube collector radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112739168A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202700988U (en) * | 2012-08-01 | 2013-01-30 | 北京京诚瑞信长材工程技术有限公司 | Turbulence sleeve and turbulence pipe |
| TH146302A (en) * | 2010-04-30 | 2016-02-29 | นางสาวยิ่งลักษณ์ ไกรฤกษ์ | Tube support through heat exchanger with heat exchanger manufacturing method Which use the aforementioned buoyancy and the air conditioner and / or the said outdoor unit equipped As well as the heat exchanger which was produced |
| CN208330523U (en) * | 2018-05-28 | 2019-01-04 | 湖北雷迪特冷却系统股份有限公司 | A kind of automobile radiators heat-dissipating pipe |
| CN110594698A (en) * | 2018-06-12 | 2019-12-20 | 法雷奥市光（中国）车灯有限公司 | Radiators, lighting and/or signaling devices for LED headlights and motor vehicles |
| CN211792688U (en) * | 2020-05-20 | 2020-10-27 | 上海硅扬电子科技有限公司 | Wind gathering pipeline type fin radiating fin |
| CN214338395U (en) * | 2020-12-29 | 2021-10-01 | 北京林业大学 | A narrow tube collector radiator |
-
2020
- 2020-12-29 CN CN202011596308.9A patent/CN112739168A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TH146302A (en) * | 2010-04-30 | 2016-02-29 | นางสาวยิ่งลักษณ์ ไกรฤกษ์ | Tube support through heat exchanger with heat exchanger manufacturing method Which use the aforementioned buoyancy and the air conditioner and / or the said outdoor unit equipped As well as the heat exchanger which was produced |
| CN202700988U (en) * | 2012-08-01 | 2013-01-30 | 北京京诚瑞信长材工程技术有限公司 | Turbulence sleeve and turbulence pipe |
| CN208330523U (en) * | 2018-05-28 | 2019-01-04 | 湖北雷迪特冷却系统股份有限公司 | A kind of automobile radiators heat-dissipating pipe |
| CN110594698A (en) * | 2018-06-12 | 2019-12-20 | 法雷奥市光（中国）车灯有限公司 | Radiators, lighting and/or signaling devices for LED headlights and motor vehicles |
| CN211792688U (en) * | 2020-05-20 | 2020-10-27 | 上海硅扬电子科技有限公司 | Wind gathering pipeline type fin radiating fin |
| CN214338395U (en) * | 2020-12-29 | 2021-10-01 | 北京林业大学 | A narrow tube collector radiator |
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