CN103648251A - Radiator wind-scooper device with drainage and wind collecting function - Google Patents
Radiator wind-scooper device with drainage and wind collecting function Download PDFInfo
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- CN103648251A CN103648251A CN201310562960.2A CN201310562960A CN103648251A CN 103648251 A CN103648251 A CN 103648251A CN 201310562960 A CN201310562960 A CN 201310562960A CN 103648251 A CN103648251 A CN 103648251A
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Abstract
The invention relates to a radiator wind-scooper device with a drainage and wind collecting function. The radiator wind-scooper device is characterized in that the wind scooper is formed through of drainage fan covers (5) and a heat-radiation fan cover (6), which are connected into a whole. The distance between the heat-radiation fan cover and a radiator is smaller than 8 millimeter and the length of the heat-radiation fan cover is larger than 60% of the length of fins. An air inlet and an air outlet of the wind scooper are facing or backing on to the direction of an external air-flow field and at least one drainage fan cover is arranged at the air inlet and air outlet. The drainage fan cover has at least one of three drainage characteristics: (1) the ratio between the cross section area of the end port of each drainage fan cover and the cross section area of the heat-radiation fan cover is 1.2; (2) the distances between the end ports of the drainage fan covers and the end ports of the fin group are larger than 2cm; (3) the angles between the air-flow direction on at least one cross section in each drainage fan cover and the air-flow direction in the heat-radiation fan cover are larger than 15 degrees. The device is capable of improving heat-radiation effect of the radiator and reducing weight and cost.
Description
Technical field
The present invention relates to a kind of wind guide cover device of radiator, especially a kind of radiator wind-guiding cover device that has drainage wind gathering function.Main range of application is: the heat radiation of all kinds of fluid media (medium)s, the heat radiation of the heater members such as high-power chip, CPU, power device, LED.
Background technology
Heat radiation is numerous equipment, device extensive use and essential means.
As shown in Figure 1, fin slices radiator 3 is that metal material is made, and the radiator consisting of together with the some fins 1 that are parallel to each other that extend to form from base heat-conducting base 2 is the most frequently used a kind of radiator.Be the work schematic diagram of fin slices radiator when not configuring wind scooper as shown in Figure 5 and Figure 6.In Fig. 5: air flow stream is crossed in the process of fin slices radiator 3, air-flow is constantly overflowed from the top of fin, and air flow rate and the flow velocity of the middle and lower reaches of radiator are significantly smaller than upstream.As shown in Figure 6: the throughput on fin slices radiator 3 and flow velocity cut off 7 places at solid and reach maximum, along with the increase of the distance of cutting off from solid, throughput and flow velocity on radiator decline rapidly.As can be seen here: the fin slices radiator radiating effect that does not configure wind scooper is very poor.
Fin slices radiator must be close to by radiating element 8, so its installation site, can not freely select with the relative orientation of Flow Field outside air current flow direction.If the airflow field of its present position, pressure field, be unfavorable for ventilating with the relative orientation of outer airflow field, such as completely, in Si Feng district, its radiating effect can be very poor.Can greatly increase weight and the cost of radiator like this, reduce heat dissipation capacity, impact, by the performance of radiating element 8, temperature rise, reliability, can only abandon using fin slices radiator even sometimes, uses means and the device of other complex and expensive instead.
In order to improve the radiating effect of fin slices radiator, some occasion has adopted the conventional U font of a kind of what is called wind scooper 4, wind scooper buckle closure is in fins group 2, as shown in Figure 2, the length of conventional U font wind scooper and the same length of fins group, shape and cross-sectional area along the flow direction wind scooper of air-flow are unchanged, are in contact with one another or leave small gap between wind scooper and radiator.When this class wind scooper has larger pressure differential at inlet and outlet two ends, can play good radiating effect.
As shown in Figure 7, fin slices radiator 3 has configured conventional U font wind scooper 4.Because air-flow can not overflowed from fin top, so flow and the flow velocity of the upper, middle and lower reaches air-flow on radiator remain constant, greatly increase throughput and the flow velocity of the middle and lower reaches section of radiator, than the fin slices radiator that does not fill wind scooper, significantly improved radiating effect.
But adopted conventional U font wind scooper, and fin slices radiator inlet and outlet two ends there is certain pressure differential, sometimes or can not reach optimal radiating effect and least cost.Because once the pressure differential at inlet and outlet two ends is determined, the wind speed that flows through fin slices radiator is also determined, air quantity depends on the total draught area between each fin of radiator, as less in the total draught area between fin, ventilation quantity is less, air-flow is larger in the temperature rise of the relative air inlet of air outlet, and radiating effect is poor.Increase heat dissipation capacity, will increase ventilation quantity, so just need to increase the total draught area between the fin of radiator, thereby increase the width of radiator and the height of fin, improved cost.
Some occasion in addition, Wei Sifeng district, fin slices radiator present position or gentle breeze district, and near Ze Wei high wind district, if the air-flow in guiding high wind district is blown over fin slices radiator, can improve the radiating effect of radiator greatly.Also have some occasions, radiator is in high wind district, but between airflow direction and radiator, mutual bearings is undesirable, air-flow blows the radiating surface less than radiator, if change the flow direction of air-flow, make air-flow blow over the heat-delivery surface of radiator, can significantly improve radiating effect equally.Conventional U font wind scooper can not be realized above-mentioned two functions.
Summary of the invention
For above-mentioned situation, the present invention proposes a kind of radiator wind-guiding cover device that has drainage wind gathering function, can make the inlet and outlet of radiator be in respectively best pressure and position, flow field; The import and export that make heat abstractor towards mutually externally the flow direction of airflow field in desirable orientation; Utilize the wind gathering air-suction performance of tubaeform inlet and outlet, increase the throughput and the flow velocity that flow through radiator; Improve radiating rate and efficiency, reduce volume and the weight of radiator, reduce costs.
For this reason, the present invention takes following technical scheme, and a kind of radiator wind-guiding cover device that has drainage wind gathering function is characterized in that described wind guide cover device is nested with on radiator; Wind guide cover device is comprised of drainage fan housing and heat dissipation air hood two parts, and drainage fan housing and heat dissipation air hood are connected; The inner surface of described heat dissipation air hood and the average distance of radiator are less than 8 millimeters, and heat dissipation air hood length is greater than 60% of fin length; In the air inlet of described wind guide cover device and air outlet, have at least a side to be provided with drainage fan housing; Described drainage fan housing at least possesses in following three drainage features.Described drainage feature one: the ratio >1.2 of the port cross-sectional area of drainage fan housing and the cross-sectional area of heat dissipation air hood.Drainage feature two: the minimum distance of drainage fan housing port and fins group port is greater than 2 centimetres.Drainage feature three: have at least airflow direction and the angle each other of the airflow direction in heat dissipation air hood on a cross section to be greater than 15 degree in drainage fan housing.
If drainage fan housing import department exists outer airflow field, drainage fan housing air inlet carrys out direction facing to Flow Field outside air flow stream, and both drainage fan housing inlet face was windward side, and the angle that drainage fan housing inlet face departs from positive windward side is not more than 30 degree; If drainage fan housing exit exists Flow Field outside, drainage fan cover air outlet is carried on the back flow field air flow stream outward and is carried out direction, and drainage fan housing exit face is lee face, and the angle that drainage fan housing exit face departs from positive lee face is not less than 45 degree;
Above-mentioned feature shows as following several respects function in actual applications: one: changed the inlet and outlet position of heat abstractor, made the air inlet of heat abstractor in high pressure, High Velocity Area, air outlet is in low-pressure area.Two: drainage fan housing guiding has changed the flow direction of air-flow, the air flow energy that makes originally can not to blow to the outer airflow field of radiator is blown over the heat-delivery surface of radiator.Three: it is the horn mouth of outward opening that the import and export of air ducting have one end at least, the wind gathering of generation and air draught effect, can increase ventilation quantity and the wind speed of radiator.Four: the air inlet of drainage fan housing carrys out direction facing to the air flow stream of outer wind field, air outlet is carried on the back the airflow direction of wind field outward, can make full use of kinetic energy and the dynamic pressure of the air-flow of outer wind field, makes air flow stream as much as possible cross radiator.
Poor definite at inlet and outlet pressure, and in the very little situation of outer airflow field flow velocity, because flowing through the pass of the throughput of radiator and the cross-sectional area of inlet and outlet is positive correlation, so drainage fan housing is by making to import and export the horn mouth that forms outward opening, can increase air quantity and the wind speed that flows through radiator equally, reduce air-flow at the temperature rise number of degrees of the relative air inlet of radiator air outlet, the temperature difference that increases spreader surface and flow through between radiator air-flow, thereby improve radiating effect, reduce volume and the weight of fin slices radiator.
As preferably:
Direction is carried out in the air inlet front of the drainage fan housing outward stream of airflow field, and the air inlet of drainage fan housing is windward side and mutually vertical with the air flow direction of Flow Field outside.
Heat dissipation air hood held against heat sink, the inner surface of heat dissipation air hood and the distance of radiator are 0.
Beneficial effect of the present invention
1, have advantages of that conventional U font wind scooper possesses: air-flow is not overflowed from the top of radiator fins, middle and lower reaches throughput and the flow velocity of radiator significantly improve, increase the air velocity of radiator high-temperature region.
2, the setting of drainage fan housing makes the inlet and outlet of radiator be in respectively best pressure and position, flow field, make radiator inlet and outlet towards mutually externally the airflow direction of airflow field in best orientation, avoided radiator because of in unfavorable position with towards the bad consequence with using of bring heat radiation.
3, the inlet and outlet of drainage fan housing forms the horn mouth of outward opening, and the wind gathering characteristic of import department and the air draught characteristic in exit can increase the air quantity that flows through radiator.Flow through the increase of radiator air quantity: on the one hand improved the speed that air flow stream is crossed radiator, heat dissipation capacity becomes the relation of 0.8 power with wind speed, improved radiating rate; Reduced on the other hand air at radiator outlet the temperature rise amplitude with respect to import department, also reduced the mean temperature that flows through radiator air-flow, increase the temperature difference of spreader surface to air-flow, further strengthen radiating effect.
4, guaranteeing, under the prerequisite of radiating effect, because significantly having improved radiating efficiency, can to reduce volume, weight, the cost of radiator.
Accompanying drawing explanation
Fig. 1: fin slices radiator structural representation.
Fig. 2: the fin slices radiator structural representation that has adopted conventional U font wind scooper.
Fig. 3: adopted the fin slices radiator principle schematic that has the wind scooper of drainage wind gathering function of the present invention
Fig. 4: the wind scooper typical structure schematic diagram that has drainage wind gathering function of the present invention.
Fig. 5: the work schematic diagram of fin slices radiator when not configuring wind scooper
Fig. 6: solid cuts off both sides and is respectively high depression, fin slices radiator across the work schematic diagram cutting off, radiator does not configure wind scooper.
Fig. 7: solid cut off both sides be respectively high depression, fin slices radiator across cutting off, the work schematic diagram of the conventional U font of heat sink arrangements wind scooper.
Fig. 8: the work schematic diagram of embodiments of the invention 1: solid cuts off both sides and is respectively high depression, fin slices radiator across partition, the heat sink arrangements work schematic diagram that has the wind scooper of drainage wind gathering function of the present invention.
Fig. 9: the work schematic diagram of embodiments of the invention 2.
Figure 10: the work schematic diagram of embodiments of the invention 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, further set forth technical scheme of the present invention.
Embodiment 1:
Referring to Fig. 3,4, a kind of radiator wind-guiding cover device that has drainage wind gathering function, radiator 3 is by heat-conducting base 2 and from base, extend the some fins 1 that are parallel to each other form and jointly form, and wind guide cover device is nested with on radiator 3; Wind guide cover device is comprised of drainage fan housing 5 and heat dissipation air hood 6 two parts, and drainage fan housing and heat dissipation air hood are connected; The length of heat dissipation air hood 6 is greater than 60% of fin 1 length, and the two ends of wind scooper are equipped with the horn mouth that 5, two drainage fan housings of drainage fan housing all have outward opening; The inner surface of heat dissipation air hood and the average distance of radiator are less than 8 millimeters, and drainage fan housing 5 possesses the port cross-sectional area of following three features (1) drainage fan housing and the ratio >1.2 of the cross-sectional area of heat dissipation air hood; (2) minimum distance of drainage fan housing port and fins group port is greater than 2 centimetres; (3) in drainage fan housing, have at least airflow direction and the angle each other of the airflow direction in heat dissipation air hood on a cross section to be greater than 15 degree.
In the embodiment of the present invention 1 shown in Fig. 8: have a solid to cut off 7 space is divided into high pressure and low-pressure area, fin slices radiator cuts off across solid, and air inlet is in higher-pressure region, and air outlet is in low-pressure area; Under the fixing prerequisite of inlet and outlet pressure differential, the air quantity stream that flows through radiator is positive correlation with the pass of the cross-sectional area of inlet and outlet.Fin slices radiator with reference to the conventional U font of the installation shown in comparison diagram 7 wind scooper 4, adopt wind guide cover device of the present invention, because the wind gathering air suction function that the horn mouth of the outward opening at the inlet and outlet place of drainage fan housing produces, the air quantity, the flow velocity that make to flow through radiator obviously increase, because flowing through the air quantity of radiator, increase, the temperature rising number of degrees that air-flow is compared air inlet at radiator air outlet decline, and the air-flow mean temperature that also flows through radiator declines.The decline of gas flow temperature and the increase of flow velocity, all can significantly improve radiating effect.
In sum, in the embodiment of the present invention 1, compare and adopt conventional U font wind scooper 4, same fin slices radiator, the solution of the present invention can reach and make there is better radiating effect by radiating element 8, and reaches same radiating effect, can adopt less lighter fin slices radiator.
Embodiment 2:
Referring to Fig. 9, in the present embodiment, there is a solid to cut off space is divided into high pressure and low-pressure area, the wherein side of fin slices radiator in cutting off, the two ends of wind scooper are equipped with drainage fan housing, two drainage fan housings all have the horn mouth of outward opening, drainage fan housing air inlet in higher-pressure region, air outlet is in low-pressure area.
In the present embodiment, the air inlet of drainage fan housing carrys out direction facing to the stream of outer airflow field, and the air inlet of drainage fan housing is windward side.Airflow direction and the angle each other of the airflow direction in heat dissipation air hood 6 at drainage fan housing 5 air inlet places are about 90 degree simultaneously, be that drainage fan housing has changed air current flow direction, air is flowed out at the inflow of higher-pressure region air inlet, low-pressure area air outlet, and the air-flow fin slices radiator upper, middle and lower reaches of all flowing through are omnidistance, can not spread effusion midway.
Because drainage fan housing is provided with the horn mouth of outward opening, the air quantity stream that flows through radiator is positive correlation with the pass of the cross-sectional area of inlet and outlet, can make the air quantity and the flow velocity that flow through radiator obviously increase.The increase of air quantity, the temperature rise number of degrees that make air outlet compare air inlet decline, and also make the air-flow mean temperature that flows through radiator decline, and the temperature difference of spreader surface relative wind increases.Temperature difference increase between spreader surface and air-flow and the increase of air-flow velocity, all can significantly improve radiating effect.
In the present embodiment, can make the inlet and outlet of fin slices radiator be arranged on most suitable position; By making to flow through the decline of gas flow temperature and the increase of flow velocity of radiator, significantly improve radiating effect simultaneously.Reach and adopt same fin slices radiator, obtain larger heat dissipation capacity; Reach same radiating effect, can adopt the object of less lighter fin slices radiator.
Embodiment 3:
Referring to Figure 10, in the present embodiment, fin slices radiator 3 is in the space of gradual change in flow velocity and pressure, the two ends of wind guide cover device are equipped with drainage fan housing 5, two drainage fan housings all have the horn mouth of outward opening, the air inlet of drainage fan housing is in high pressure, high gas flow flow velocity position, and air outlet is in locations of low pressure; The air inlet of drainage fan housing is windward side, and the angle that air inlet departs from positive windward side is no more than 30 degree, and the air outlet of drainage fan housing is lee face, and air outlet departs from positive lee face angle and is not less than 45 degree.
The trumpet type air inlet of outward opening produces wind gathering effect, and the trumpet type air outlet of outward opening produces air draught effect; The air inlet of drainage fan housing is windward side, and the air outlet of drainage fan housing is lee face, the airflow direction of having eliminated outer airflow field with radiator towards mating undesirable brought impact.With reference to comparison diagram 5: fin slices radiator 3 does not configure wind scooper, airflow passes radiator, constantly overflows from fin top, and air-flow velocity and the flow of the middle and lower reaches of radiator are significantly smaller than upstream, and radiating effect is very poor; Adopt the present invention program, three factors of wind gathering air draught effect that the dynamic pressure that inlet and outlet pressure is poor because taking full advantage of, airflow kinetic energy produces, trumpet type inlet and outlet produce, the radiating effect of radiator is significantly improved, increased heat dissipation capacity, or reduce volume, weight, the cost of radiator.
Claims (5)
1. a radiator wind-guiding cover device that has drainage wind gathering function, radiator is by heat-conducting base and from base, extend the some fins that are parallel to each other form and jointly form, and it is characterized in that described wind guide cover device is nested with on radiator; Wind guide cover device is comprised of drainage fan housing and heat dissipation air hood two parts, and drainage fan housing and heat dissipation air hood are connected; The inner surface of described heat dissipation air hood and the average distance of radiator are less than 8 millimeters, and heat dissipation air hood length is greater than 60% of fin length; In the air inlet of described wind guide cover device and air outlet, have at least a side to be provided with drainage fan housing; Described drainage fan housing at least possesses in following three drainage features:
(1) the ratio >1.2 of the port cross-sectional area of drainage fan housing and the cross-sectional area of heat dissipation air hood;
(2) minimum distance of drainage fan housing port and fins group port is greater than 2 centimetres;
(3) in drainage fan housing, have at least airflow direction and the angle each other of the airflow direction in heat dissipation air hood on a cross section to be greater than 15 degree.
2. a kind of radiator wind-guiding cover device that has drainage wind gathering function according to claim 1, the air inlet that it is characterized in that described drainage fan housing is met to Flow Field outside air flow stream and is carried out direction, and air inlet and Flow Field outside airflow direction depart from orthogonal angle and be no more than 30 degree.
3. according to a kind of radiator wind-guiding cover device that has drainage wind gathering function described in right 2, it is characterized in that the air inlet front of described drainage fan housing meets the flow direction of outside airflow field.
4. according to any described in right 1 or 2 or 3, have the radiator wind-guiding cover device of drainage wind gathering function, the air outlet that the it is characterized in that described drainage fan housing dorsad air flow stream of outer airflow field carrys out direction, and air outlet departs from positive lee face angle and is not less than 45 degree.
5. according to a kind of radiator wind-guiding cover device that has drainage wind gathering function described in right 1, it is characterized in that described heat dissipation air hood inner surface and radiator distance are 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310562960.2A CN103648251A (en) | 2013-11-08 | 2013-11-08 | Radiator wind-scooper device with drainage and wind collecting function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310562960.2A CN103648251A (en) | 2013-11-08 | 2013-11-08 | Radiator wind-scooper device with drainage and wind collecting function |
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| CN103648251A true CN103648251A (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310562960.2A Pending CN103648251A (en) | 2013-11-08 | 2013-11-08 | Radiator wind-scooper device with drainage and wind collecting function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116314928A (en) * | 2023-05-16 | 2023-06-23 | 北京氢璞创能科技有限公司 | Fuel cell heat abstractor, fuel cell and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6504718B2 (en) * | 2000-11-06 | 2003-01-07 | Giga-Byte Technology Co., Ltd. | Server having an air flow guide device |
| CN1873583A (en) * | 2005-06-04 | 2006-12-06 | 鸿富锦精密工业（深圳）有限公司 | Improved structure of server |
| US7209352B2 (en) * | 2003-08-22 | 2007-04-24 | Hon Hai Precision Ind. Co., Ltd. | Heat dissipation device incorporating fan duct |
| CN101827513A (en) * | 2010-02-03 | 2010-09-08 | 郏松筠 | Radiation device with wind scooper |
| CN203840680U (en) * | 2013-11-08 | 2014-09-17 | 高斌 | Radiator wind scooper device with function of drainage wind concentration |
-
2013
- 2013-11-08 CN CN201310562960.2A patent/CN103648251A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6504718B2 (en) * | 2000-11-06 | 2003-01-07 | Giga-Byte Technology Co., Ltd. | Server having an air flow guide device |
| US7209352B2 (en) * | 2003-08-22 | 2007-04-24 | Hon Hai Precision Ind. Co., Ltd. | Heat dissipation device incorporating fan duct |
| CN1873583A (en) * | 2005-06-04 | 2006-12-06 | 鸿富锦精密工业（深圳）有限公司 | Improved structure of server |
| CN101827513A (en) * | 2010-02-03 | 2010-09-08 | 郏松筠 | Radiation device with wind scooper |
| CN203840680U (en) * | 2013-11-08 | 2014-09-17 | 高斌 | Radiator wind scooper device with function of drainage wind concentration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116314928A (en) * | 2023-05-16 | 2023-06-23 | 北京氢璞创能科技有限公司 | Fuel cell heat abstractor, fuel cell and vehicle |
| CN116314928B (en) * | 2023-05-16 | 2023-09-05 | 北京氢璞创能科技有限公司 | Fuel cell heat abstractor, fuel cell and vehicle |
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Application publication date: 20140319 |