CN101482256A - Radiating device - Google Patents
Radiating device Download PDFInfo
- Publication number
- CN101482256A CN101482256A CNA2008100003803A CN200810000380A CN101482256A CN 101482256 A CN101482256 A CN 101482256A CN A2008100003803 A CNA2008100003803 A CN A2008100003803A CN 200810000380 A CN200810000380 A CN 200810000380A CN 101482256 A CN101482256 A CN 101482256A
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- air
- cooling base
- fan
- heat abstractor
- heat
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Abstract
The invention discloses a heat dissipation device, comprising a heat dissipation substrate, an intake module and a control module. The heat dissipation substrate is loaded with at least a luminescent wafer and is provided with an air inlet; the intake module comprises a fan, an air suction part and an air pipe; the air pipe is connected with the air suction part and the air inlet of the heat dissipation substrate; the air suction part is close to the fan; the control module comprises a heat sensor and a controller; the controller is connected with the fan, the air suction part and the heat sensor electrically; the heat sensor is arranged on the heat dissipation substrate and is used for sensing the temperature of the heat dissipation substrate; the controller controls the air suction part and the fan to selectively operate according to the temperature of the heat dissipation substrate.
Description
Technical field
The present invention is about a kind of, and particularly relevant for a kind of heat abstractor that is used for headlight.
Background technology
In general, the head lamp system that vehicle was equipped with is a light source with incandescent lamp, Halogen lamp LED or xenon lamp.Increasing in recent years depot begins to use instead light emitting diode, and (Light Emitting Diode LED) is vehicle light source.The power consumption of LED comes lowly compared with incandescent lamp, Halogen lamp LED or xenon lamp, and the heat that produces is also lower.Single LED volume and area are little, if lighting use, single LED luminance shortage, must arrange a plurality of LED in a small size to promote unit are brightness.Therefore, heat density also relatively improves.Yet present high-capacity LED input power only has 15% to 20% to convert light to, and all the other 80% to 85% convert heat to, if these heat are not discharged outside in good time, will make LED crystal grain interface temperature too high and influence luminous efficiency and luminescent lifetime so.
In the automobile-used illumination, LED at first is used for not higher brake light of brightness demand and indicator, slowly is applied to the higher room light of brightness demand afterwards.At present, the brightness demand is the highest and to require the most harsh headlight illumination be the important issue of the automobile-used illumination of current LED, but follows highlight illumination and the high heat problem that comes is that each tame manufacturer needs the problem that overcomes badly.In general, cooling mechanism can be water-cooling pattern or air cooling mode.Water-cooling pattern utilizes liquid collocation conduit to flow through circularly needs the position of heat radiation to cool off, though the heat radiation function height has and makes and the too high problem of maintenance cost.The air cooling mode is all only done improvement at the radiating fin that fits in LED headlight module at present, and heat radiation function improvement amplitude is little.
Therefore, the invention provides a kind of heat abstractor, in order to another kind of different air cooling radiating mode to be provided.
Summary of the invention
The object of the present invention is to provide a kind of heat abstractor, extraneous air-flow can be directed to the certain heat position, increase heat radiation function.
According to a specific embodiment, heat abstractor of the present invention comprises cooling base, air inlet module and control module.Cooling base carries at least one luminescent wafer and has air inlet; The air inlet module comprises fan, air-breathing member and airway, and airway connects the air inlet of air-breathing member and cooling base, and air-breathing member is near fan; The control module comprises thermal sensor and controller.Controller is electrically connected to fan, air-breathing member and thermal sensor.Thermal sensor is positioned on the cooling base, in order to the temperature of induction cooling base.Controller controls air-breathing member according to the temperature of this cooling base and fan optionally operates.
In addition, luminescent wafer is positioned at the side of cooling base, and the cooling base of heat abstractor of the present invention comprises at least one through hole in addition and runs through this side, in order to allow air-flow import cooling base from this side.
By this, heat abstractor of the present invention utilizes air draught member and airway initiatively to introduce air-flow in cooling base, and the through hole of cooling base can import other air-flows from the side at luminescent wafer place, for example when the vehicle that this heat abstractor is installed is advanced, the air-flow that the air of outside vehicle produces because of advancing.Generally speaking, but heat abstractor air-guiding of the present invention increases radiating efficiency to the certain heat position.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the schematic diagram of the heat abstractor of one preferred embodiment according to the present invention.
Fig. 2 is the schematic diagram that the heat abstractor that illustrates Fig. 1 is arranged at vehicle.
Fig. 3 is the schematic diagram of the cooling base of Fig. 1.
The specific embodiment
See also Fig. 1 and Fig. 2, Fig. 1 is the schematic diagram that illustrates the heat abstractor 1 of one preferred embodiment according to the present invention.Fig. 2 is the schematic diagram that the heat abstractor 1 that illustrates Fig. 1 is arranged at vehicle.As shown in Figure 1, heat abstractor 1 of the present invention comprises cooling base 10, air inlet module 12 and control module 14.The a plurality of luminescent wafers 3 of cooling base 10 carryings are in order to the heat of luminescent wafer 3 generations that leave.As shown in Figure 2, in fact luminescent wafer 3 can be LED headlight module, and heat abstractor 1 is in order to provide LED headlight heat sinking function.Be noted that, know for convenience figure, only the heat abstractor 1 of Fig. 1 is plotted among Fig. 2 vehicle both sides headlight one of them.
As shown in Figure 1, cooling base 10 has several radiating fins 104.In the design, the profile of radiating fin 104 is elongated more to increase area of dissipation more, and then reaches high heat radiation function.But the improvement of passive heat radiation (only relying on cooling base 10 heat radiations) has been not easy obvious enhancement, therefore needs active heat radiation significantly to increase heat radiation function.The general practice is to utilize fan inspiration cold air, blows to cooling base 10 then to take away heat.But this kind practice does not have special design to air flow direction, can't be at particular heat source (or hot-zone) heat radiation, and can only increase rotation speed of the fan or strengthen fan dimension increases heat radiation function.Heat abstractor 1 of the present invention has the air-guiding function, and mechanism and effect will be specified in down.
Air inlet module 12 comprises fan 120, air-breathing member 122 and airway 124.Under the actual conditions, as shown in Figure 2, fan 120 is indoor except can additionally being arranged at car engine, also can be original automobile-used radiator fan, for example: and the water tank radiator fan of vehicle, and then save Material Cost and take up space.Cooling base 10 has the exhaust outlet 102 of air inlet 100 and corresponding air inlet 100.Airway 124 connects the air inlet 100 of air-breathing member 122 and cooling base 10, and air-breathing member 122 is near fan 120.The air-flow of fan 120 inspirations enters air inlet 100 after introducing airway 124 via air-breathing member 122 again.Behind the airflow line of this airflow passes cooling base 10 (shown in the dotted line), discharge by exhaust outlet 102.Be noted that, know for convenience figure, only draw corresponding two air inlets 100 two airflow lines one of them.
Generally speaking, the hot-zone of cooling base 10 (that is, the position that temperature is higher) is mainly the position that contacts with luminescent wafer 3.Because it is faster than the rate of heat dispation of cooling base 10 usually that luminescent wafer 3 produces the speed of heats, so air-flow luminescent wafer 3 contacts site of directly flowing through, can help to reduce the temperature of luminescent wafer 3 and the contact site of cooling base 10.In addition, if the temperature difference of the object of two contacts is big more, then the exchange rate between the object is high more.Therefore, if radiating fin 104 is can not be promptly and the air exchange heat, the heat that is conducted to cooling base 10 by luminescent wafer 3 can't be passed to radiating fin 104 rapidly, can't have the bigger temperature difference between cooling base 10 and the luminescent wafer 3, the heat that the cooling base 10 and then the luminescent wafer 3 that can't leave apace produce.By this, the airway 124 of heat abstractor 1 comprises manifold 1240, blows to radiating fin 104 in order to guiding part air-flow, increases the exchange rate of radiating fin 104 and air.
If all with high rotating speed and the running of high suction air volume, though heat abstractor 1 can provide maximum heat radiation function, but also generation is disturbed people's noise and also can be affected the service life of heat abstractor 1 respectively for fan 120 and air draught member 122.Therefore, the control module 14 of heat abstractor 1 of the present invention comprises thermal sensor 140 and controller 142.Controller 142 is electrically connected to fan 120, air-breathing member 122 and thermal sensor 140.Thermal sensor 140 is positioned on the cooling base 10, in order to the temperature of induction cooling base 10.Controller 142 controls air-breathing member 122 according to the temperature of cooling base 10 and fan 120 optionally operates.For example, the controller 142 settings first threshold temperature value is that 50 degree and the second threshold temperature value are 70 degree.If the temperature of thermal sensor 140 induction cooling bases 10 surpasses the first threshold temperature value but does not reach the second threshold temperature value, for example 60 spend, controller 142 control fans 120 and air draught member 122 are to operate less than maximum (top) speed and maximum suction air volume, or control fan 120 shuts down, and has only 122 runnings of air draught member.If temperature surpasses the second threshold temperature value, for example 80 spend, and controller 142 control fans 120 and air draught member 122 are respectively with maximum (top) speed and the running of maximum suction air volume.
Certainly, the invention is not restricted to this.Airway 124 can comprise the valve (not illustrating) by controller 142 controls, and thermal sensor 140 can lay respectively at cooling base 10 different parts, for example the side 106 of radiating fin 104 and contact luminescent wafer 3.Controller 142 is according to the temperature of cooling base 10 different parts, optionally the by-pass valve control air-guiding.For instance, the temperature of sensing side 106 when thermal sensor 140 surpasses first threshold temperature, but the temperature of radiating fin 104 does not surpass first threshold temperature, controller 142 by-pass valve controls flow toward manifold 1240 to stop air-flow, air-guiding flows toward air inlet 100, increases the radiating efficiency of cooling base 10 bodies.
See also Fig. 3, Fig. 3 is the schematic diagram that illustrates the cooling base 10 of Fig. 1.Be noted that the cooling base 10 of Fig. 3 is that the cooling base 10 of Fig. 1 is along cutting open by the direction of several luminescent wafers 3.Several luminescent wafers 3 are positioned at the side 106 of cooling base 10, and cooling base 10 comprises several through holes 108 and runs through side 106.As shown in Figure 3, the cross section perpendicular to side 106 of through hole 108 slightly is horn-like.Please consult Fig. 2 simultaneously, be noted that, the lampshade of headlight can only cover luminescent wafer 3 (that is, LED headlight module), and cooling base 10 all is positioned at outside the lampshade.Structural design by lampshade can be directed in outside air in the lampshade, air-flow and then flow into cooling bases 10 with the heat that leaves from through hole 108.The cross section of through hole 108 is horn-like, according to hydrodynamics, the flow velocity at the narrower place of air-flow in through hole 108 compared with the opening part of side 106 come fast.Therefore, the air-flow velocity of the cooling base 10 of flowing through increases, and then increases radiating efficiency.
Compared to prior art, heat abstractor of the present invention utilizes air draught member and airway initiatively to introduce air-flow in cooling base, and the through hole of cooling base can import other air-flows from the side at luminescent wafer place, for example when the vehicle that this heat abstractor is installed is advanced, the air-flow that the air of outside vehicle produces because of advancing.Generally speaking, but heat abstractor air-guiding of the present invention increases radiating efficiency to the certain heat position.In addition, in limited space, car engine chamber for example, cooling base can't maximize increasing heat radiation function, and the airway of the heat abstractor of the present invention engine chamber space of can arranging in pairs or groups is configured and deflection, and then saves the space and increase design flexibility.
By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present invention and spirit, and be not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category of claim of being arranged in of various changes and tool equality institute of the present invention desire application.Therefore, the category of the claim that the present invention applied for should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (7)
1. a heat abstractor is characterized in that, comprises:
One cooling base carries at least one luminescent wafer and has an air inlet;
One air inlet module comprises a fan, an air-breathing member and an airway, and this airway connects this air inlet of this air-breathing member and this cooling base, and this air-breathing member is near this fan; And
One control module, comprise a thermal sensor and a controller, this controller is electrically connected to this fan, this air-breathing member and this thermal sensor, this thermal sensor is positioned on this cooling base, in order to respond to a temperature of this cooling base, this controller optionally operates according to this temperature this air-breathing member of control and this fan.
2. heat abstractor as claimed in claim 1 is characterized in that, this cooling base comprises a exhaust outlet that should air inlet, and this airway is guided an air-flow and entered this air inlet, behind this cooling base of this airflow passes, is discharged by this exhaust outlet.
3. heat abstractor as claimed in claim 1 is characterized in that this airway comprises a manifold, and this manifold is guided an air-flow and blowed to this cooling base.
4. heat abstractor as claimed in claim 3 is characterized in that this cooling base has a plurality of radiating fins, and this manifold is guided this air-flow and blowed to these radiating fins.
5. heat abstractor as claimed in claim 1 is characterized in that, this at least one luminescent wafer is positioned at a side of this cooling base, and this cooling base comprises at least one through hole and runs through this side.
6. heat abstractor as claimed in claim 5 is characterized in that, it is one horn-like that a cross section of vertical this side of this through hole slightly is.
7. heat abstractor as claimed in claim 1 is characterized in that, this fan is an automobile-used radiator fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100003803A CN101482256A (en) | 2008-01-09 | 2008-01-09 | Radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100003803A CN101482256A (en) | 2008-01-09 | 2008-01-09 | Radiating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101482256A true CN101482256A (en) | 2009-07-15 |
Family
ID=40879478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100003803A Pending CN101482256A (en) | 2008-01-09 | 2008-01-09 | Radiating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101482256A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836386A (en) * | 2012-11-23 | 2014-06-04 | 海洋王（东莞）照明科技有限公司 | Lamp and cooling device thereof |
| CN105180049A (en) * | 2014-05-07 | 2015-12-23 | 黑拉许克联合股份有限公司 | Light module for a vehicle headlamp |
| CN105605540A (en) * | 2016-03-25 | 2016-05-25 | 付淑珍 | Heat dissipator for LED (light-emitting diode) energy-saving lamps |
| CN106439759A (en) * | 2016-10-18 | 2017-02-22 | 苏州承源光电科技有限公司 | LED (Light-Emitting Diode) radiator capable of radiating quickly |
| CN106764801A (en) * | 2016-12-27 | 2017-05-31 | 广东雷腾智能光电有限公司 | A kind of vehicle lamp assembly water cooling system and its heat dissipating method |
| CN108131594A (en) * | 2017-11-28 | 2018-06-08 | 广东瑞可创意设计有限公司 | A kind of headlamp convenient for cleaning |
| CN112432086A (en) * | 2020-11-25 | 2021-03-02 | 浙江北光科技股份有限公司 | LED (light-emitting diode) down lamp |
| CN114401609A (en) * | 2022-03-25 | 2022-04-26 | 深圳市永锋顺科技有限公司 | A machine controller heat dissipation ventilation structure for scooter |
-
2008
- 2008-01-09 CN CNA2008100003803A patent/CN101482256A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836386A (en) * | 2012-11-23 | 2014-06-04 | 海洋王（东莞）照明科技有限公司 | Lamp and cooling device thereof |
| CN105180049A (en) * | 2014-05-07 | 2015-12-23 | 黑拉许克联合股份有限公司 | Light module for a vehicle headlamp |
| CN105180049B (en) * | 2014-05-07 | 2020-08-11 | 黑拉许克联合股份有限公司 | Optical module for a motor vehicle headlight |
| CN105605540A (en) * | 2016-03-25 | 2016-05-25 | 付淑珍 | Heat dissipator for LED (light-emitting diode) energy-saving lamps |
| CN105605540B (en) * | 2016-03-25 | 2019-12-27 | 和鸿电气股份有限公司 | Heat dissipation device for LED energy-saving lamp |
| CN106439759A (en) * | 2016-10-18 | 2017-02-22 | 苏州承源光电科技有限公司 | LED (Light-Emitting Diode) radiator capable of radiating quickly |
| CN106764801A (en) * | 2016-12-27 | 2017-05-31 | 广东雷腾智能光电有限公司 | A kind of vehicle lamp assembly water cooling system and its heat dissipating method |
| CN108131594A (en) * | 2017-11-28 | 2018-06-08 | 广东瑞可创意设计有限公司 | A kind of headlamp convenient for cleaning |
| CN112432086A (en) * | 2020-11-25 | 2021-03-02 | 浙江北光科技股份有限公司 | LED (light-emitting diode) down lamp |
| CN112432086B (en) * | 2020-11-25 | 2022-06-17 | 浙江北光科技股份有限公司 | LED (light-emitting diode) down lamp |
| CN114401609A (en) * | 2022-03-25 | 2022-04-26 | 深圳市永锋顺科技有限公司 | A machine controller heat dissipation ventilation structure for scooter |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090715 |