CN203775589U - Novel fin cooling device - Google Patents
Novel fin cooling device Download PDFInfo
- Publication number
- CN203775589U CN203775589U CN201420111926.3U CN201420111926U CN203775589U CN 203775589 U CN203775589 U CN 203775589U CN 201420111926 U CN201420111926 U CN 201420111926U CN 203775589 U CN203775589 U CN 203775589U
- Authority
- CN
- China
- Prior art keywords
- fin
- cooling
- mounting seat
- installation base
- radiating fin
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel fin cooling device comprising a box-type installation base and cooling fins installed into the box-type installation base. The cooling fins are welded onto the baseboard of the installation base. The outer side surface of the baseboard is connected with a heat source. The installation base is provided with a fin cover plate which is in fit with end surfaces of the cooling fins. One end of the fin cover plate is provided with a cooling fan communicated with the installation base. The side surface of the installation base which is opposite to the cooling fan is provided with an air inlet to make an air ventilation duct formed in the installation base. According to the utility model, advantages of reasonable design and simple structure can be realized, through the conduction and convection forced air cooling method, the novel fin cooling device has the advantage of good cooling capability adapting to high heating flux and advantages of reliable structure and light weight, so a good cooling platform is provided for products needing cooling, such as airborne avionics, etc., and the installation and connection mode of the fins can be changed according to cooling requirements of different power density degrees, so advantages of wide application range and good environmental suitability can be realized.
Description
Technical field
The utility model relates to a kind of radio communications set, especially a kind of radiator, specifically a kind of Novel fin radiator.
Background technology
At present, airborne class short wave communication series products (RF) generally all contains high-power heater members, and higher to the reliability requirement of equipment, therefore to the heat radiation of high power device, requires also higher.If adopt forced air cooling or the low-cost mode such as naturally cooling to dispel the heat, can only improve radiating effect by increasing the area of dissipation of corresponding radiator.The kind of this type of radiator is more, is mostly extrudate or make by mechanical metalworking form, can meet the radiating requirements of general occasion.But owing to being subject to processing the restriction of mode, its radiator area can not infinitely increase, therefore, at some special occasions, high power device has produced high density of heat flow rate on the one hand, and the exchange capability of heat of radiator has been proposed to very high requirement; Require again on the other hand weight of equipment corresponding light, now, this class common radiator or cold drawing often do not reach the effect of regulation.If use the modes such as liquid cooling, thermoelectric cooling, drop and spraying cooling, freezing by change of state instead, can improve cooling capacity, but also bring cost raising, volume and weight to increase simultaneously, and safeguard the problems such as inconvenience.Therefore, current in the urgent need to designing the Portable heat-radiation device that exchange capability of heat is stronger, and can take into account volume, weight, performance and the indicator of costs, to meet special radiating requirements simultaneously, and the harsh rugged environment condition of military products.
Summary of the invention
The purpose of this utility model is to provide a kind of Novel fin radiator, can do not increase mention with weight prerequisite under, significantly improve heat-sinking capability, meet the specific demand of military products.
The technical solution of the utility model is:
A Novel fin radiator, comprises box mounting seat and radiating fin is within it installed, described radiating fin is welded on the base plate of mounting seat, and the lateral surface of this base plate is connected with thermal source; Described mounting seat is provided with the fin cover plate fitting with radiating fin end face, and in one end of this fin cover plate, is provided with the cooling fan communicating with mounting seat inside.The side of the mounting seat relative with this cooling fan is provided with air inlet, makes to form in mounting seat the air channel of circulation of air.
Further, described radiating fin is that the fin of rectangle bellows-shaped forms side by side by organizing longitudinal section more, and respectively organizes between fin and mutually stagger and be side set shape.
Further, described mounting seat and radiating fin are made by wrought aluminium alloy.
Further, described radiating fin adopts vacuum brazing to be welded on the base plate of mounting seat, itself and mounting seat is solidified as a whole, and can reduces contact heat resistance therebetween.
The beneficial effects of the utility model:
The utility model is reasonable in design, simple in structure, by conduction and convection current forced air cooling mode, make it have and can adapt to the high heat-sinking capability, reliable in structure of high heat flux, the feature such as lightweight, the product dispelling the heat for needs such as airborne, electronics miniaturization provides good cooling platform, and can according to the radiating requirements of different power density grades, change the installation connection form of fin, and applied range, environmental suitability is strong.
Accompanying drawing explanation
Fig. 1 is structure explosive view of the present utility model.
Fig. 2 is radiation fin structure schematic diagram and the schematic cross-section thereof of the utility model.
Fig. 3 is the radiating fin cross sectional representation of the utility model.
Fig. 4 is the radiating fin longitudinal section schematic diagram of the utility model.
Fig. 5 is the utility model schematic appearance.
Fig. 6 is the utility model fundamental diagram.
Wherein: 1-mounting seat; 2-radiating fin; 3-cooling fan; 4-fan installation frame; 5-fin cover plate; The printed board of 6-thermal source; 7-air inlet.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the utility model comprises box mounting seat 1 and radiating fin 2 is within it installed.Described radiating fin 2 is welded on the base plate of mounting seat 1, and the lateral surface of this base plate is connected with thermal source printed board 6, and the thermal source of its generation can be distributed by this radiator.Described mounting seat 1 is provided with the fin cover plate 5 fitting with radiating fin 2 end faces.One end of this fin cover plate 5 is provided with the cooling fan 3 communicating with mounting seat inside, and is fixed by fan installation frame 4.On the other end side of mounting seat 1 relative cooling fan 3, be provided with air inlet 7, make the air channel of the interior formation circulation of air of mounting seat 1, and outside air can be through the radiating fin 2 in this mounting seat 1, as shown in Figure 5.The utility model adopts forced air cooling radiating mode, the air supply direction that is cooling fan 3 is from inside to outside, outside cold air is drawn into mounting seat 1 from air inlet 7, during through radiating fin 2, carry out heat exchange, then, the air of heating is sent from cooling fan 3, realized and having dispelled the heat to being close to the thermal source of mounting seat 1 installation.
Further, described radiating fin 2 is that the fin of rectangle bellows-shaped forms side by side by organizing cross section more, and respectively organizes between fin and mutually stagger, and cross section is side set shape, as shown in Fig. 2,3 and 4.The height of this radiating fin 2 is that series is adjustable, and the maximum height that the utility model adopts is 22mm.By thermal design, calculated and analyzed, when fin height is greater than 22mm, its radiating efficiency increase eases up, and height and volume constantly increase.Therefore 22mm is efficiency volume ratio optimum height.Meanwhile, it is little lightweight that the radiator of making is compared other types radiator volume, is applicable to space flight, airborne class of electronic devices heat transmission.The thickness of fin can adopt 0.2 ~ 0.6mm series different brackets material, and the thickness of the radiating fin 2 in the utility model has adopted 0.3mm.It is in order to increase the degree of disturbance to air in thermal dissipating path that side set is processed, and because the disturbance of fin flow air is constantly broken fluid boundary layer, thereby has larger heat exchange coefficient, has taken into account two indexs of thermal conductivity and radiator windage simultaneously.Due to the thin thickness of fin, the windage of fin inside is through emulation and test≤30Pa, and therefore general cooling fan can meet the requirement of pressure drop substantially.In addition, described ripple side set shape radiating fin 2 is relatively large with the bonded area of mounting seat 1, can adopt light specific gravity, conductive coefficient is high and solderability is good wrought aluminium alloy to make, same mounting seat 1 material also adopts wrought aluminium alloy, makes it have good heat conductivity and certain thermal capacitance.The use of identical material makes radiating fin 2 and the interface resistance of rear its contact-making surface of mounting seat 1 welding can reach minimum.
Further, described radiating fin 2 adopts vacuum brazing to be welded on the base plate of mounting seat 1, and contact heat resistance is therebetween reduced greatly.Reason is: the contact heat resistance that 1, adopts friction tight finned radiator
be generally interface resistance>=0.1, and contact heat resistance increases with matching loose and interfacial corrosion, and adopt thermal resistance≤0.01 after soldering, after surface treatment and not, can become flexible and corrode.2, extrudate or the foot of radiator of making by mechanical metalworking form and cooling fin are also one and material of the same race, but the specific area of heat radiation is little, even if high power just reaches 5 than the specific area of radiator.When selecting the height of radiating fin to be 22mm, its specific area, up to 15, has greatly increased area of dissipation.Simultaneously known according to thermal conduction study basic principle, when fluid is while be turbulent, i.e. reynolds number Re >10
4, higher by the radiator convection transfer rate of forced air cooling radiating mode, heat-sinking capability is better.
The utility model radiator and other general radiators under the same conditions correction data as table 1.
Table 1 radiator contrast table
The utility model fin radiator is adopting electric conductive oxidation surface treatment and special laser cleaning technical process after welding, electric conductive oxidation has guaranteed fin and base " three is anti-" performance, laser cleaning avoids electroplating residual liquid to remain in fin slit, causes corrosion to produce.Treated fin radiator is because its superpower performance can adapt to comparatively rugged environment condition, the especially cooling system of military aviation equipment.
The utility model does not relate to partly all prior aries that maybe can adopt same as the prior art to be realized.
Claims (4)
1. a Novel fin radiator, comprises box mounting seat and radiating fin is within it installed, and it is characterized in that described radiating fin is welded on the base plate of mounting seat, and the lateral surface of this base plate is connected with thermal source; Described mounting seat is provided with the fin cover plate fitting with radiating fin end face, and in one end of this fin cover plate, is provided with the cooling fan communicating with mounting seat inside; The side of the mounting seat relative with this cooling fan is provided with air inlet, makes to form in mounting seat the air channel of circulation of air.
2. Novel fin radiator according to claim 1, is characterized in that described radiating fin is that the fin of rectangle bellows-shaped forms side by side by organizing longitudinal section more, and respectively organizes between fin and mutually stagger and be side set shape.
3. Novel fin radiator according to claim 1, is characterized in that described mounting seat and radiating fin make by wrought aluminium alloy.
4. Novel fin radiator according to claim 1, is characterized in that described radiating fin adopts vacuum brazing to be welded on the base plate of mounting seat, is solidified as a whole itself and mounting seat, and can reduces contact heat resistance therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111926.3U CN203775589U (en) | 2014-03-13 | 2014-03-13 | Novel fin cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111926.3U CN203775589U (en) | 2014-03-13 | 2014-03-13 | Novel fin cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203775589U true CN203775589U (en) | 2014-08-13 |
Family
ID=51292728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420111926.3U Expired - Fee Related CN203775589U (en) | 2014-03-13 | 2014-03-13 | Novel fin cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203775589U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353847A (en) * | 2015-10-08 | 2016-02-24 | 北京化工大学 | CPU application oriented metal-polymer composite micro-structure heat dissipator structure |
| CN106847584A (en) * | 2017-03-24 | 2017-06-13 | 北京无线电测量研究所 | A kind of heat abstractor for ferrite switch |
| CN113423248A (en) * | 2021-06-30 | 2021-09-21 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Air-cooled solid power amplifier |
-
2014
- 2014-03-13 CN CN201420111926.3U patent/CN203775589U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353847A (en) * | 2015-10-08 | 2016-02-24 | 北京化工大学 | CPU application oriented metal-polymer composite micro-structure heat dissipator structure |
| CN106847584A (en) * | 2017-03-24 | 2017-06-13 | 北京无线电测量研究所 | A kind of heat abstractor for ferrite switch |
| CN106847584B (en) * | 2017-03-24 | 2020-12-01 | 北京无线电测量研究所 | Heat dissipation device for ferrite switch |
| CN113423248A (en) * | 2021-06-30 | 2021-09-21 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Air-cooled solid power amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20210313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |