CN112728513B - Reflector and air duct integrated heat dissipation structure - Google Patents
Reflector and air duct integrated heat dissipation structure Download PDFInfo
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- CN112728513B CN112728513B CN202011391849.8A CN202011391849A CN112728513B CN 112728513 B CN112728513 B CN 112728513B CN 202011391849 A CN202011391849 A CN 202011391849A CN 112728513 B CN112728513 B CN 112728513B
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- air
- outlet end
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- reflector
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to the field of automobile illumination, in particular to a reflector and air duct integrated heat dissipation structure. The utility model provides a reflector and wind channel integrated heat radiation structure, includes speculum body and wind channel subassembly, the wind channel subassembly include a plurality of flow distribution plates of setting on the speculum body, form the guide duct between two adjacent flow distribution plates, the one end of guide duct be the air inlet end, the other end of guide duct be the air-out end, the speculum body on correspond the air-out end and be provided with the fretwork chamber that is used for installing LED, air-out end department be provided with a plurality of reposition of redundant personnel fins. The invention can save the internal structure layout space of the front combination lamp, reduce the production cost and has better heat dissipation effect.
Description
Technical Field
The invention relates to the field of automobile illumination, in particular to a reflector and air duct integrated heat dissipation structure.
Background
The front combination lamp is used as an important component of an automobile, is mainly used for night illumination, provides good illumination for a driver, and learns the road traffic condition, so that the probability of traffic accidents is reduced. The general front combined lamp mainly has the following functions: a high beam function; a dipped headlight function; some of the steering lamps also have the function of daytime running lamps. The car light technology develops to present, and the luminous light source of far and near light mainstream basically leans on LED luminous, and also can produce a large amount of heats when the LED lamp work, will influence the life-span of lamp pearl when the high temperature, and serious just directly causes the lamp pearl to damage and inefficacy, also can roast the knot component simultaneously or make the structure warp. So often can consider its heat dissipation problem when adopting LED lamp pearl.
The mainstream light-emitting source of the front combination lamp in the current market is to emit light by means of an LED, so that the space of a front cabin of an automobile can be compressed to a greater extent while the attractiveness is improved, and the space arrangement of the whole automobile is facilitated. The preceding assembled light adopts LED to give out light to increase luminance and aesthetic feeling, improves the whole grade of vehicle, also can face lamp pearl heat dissipation problem simultaneously, and the radiating mode of present LED does not have the non on the market: FR4, aluminum substrate and FPC increase aluminum-based reinforcement heat dissipation and increase radiator heat dissipation. The FR4 structure is a structure without other external heat dissipation structures, and copper wires are distributed in the FR4 structure, so that self heat dissipation can be achieved; aluminum substrates and FPC paste the aluminium reinforcement and all paste the aluminum sheet in lamp pearl below, because the coefficient of heat conductivity of aluminium is high, often is used for being the heat radiation material, and under some specific state, the aluminum sheet just can reach fine radiating effect, but manufacturing cost is higher. The lamp bead device with high power for far and near light usually adopts a radiator for radiating, but the problem of radiating cannot be completely solved due to high-power heat concentration, and the final solution is to add a space inside a cavity to meet the requirement, so that the result is unsatisfactory.
Disclosure of Invention
The invention mainly aims at the problems of large occupied space, high production cost and poor heat dissipation effect of an internal heat dissipation structure of a front combination lamp in the current market, and provides a reflector and air duct integrated heat dissipation structure which can save the layout space of the internal structure of the front combination lamp, reduce the production cost and has good heat dissipation effect.
The purpose of the invention is mainly realized by the following scheme: the utility model provides a reflector and wind channel integrated heat radiation structure, includes reflector body and wind channel subassembly, the wind channel subassembly include a plurality of flow distribution plates of setting on the reflector body, form the guide duct between two adjacent flow distribution plates, the one end of guide duct be the air inlet end, the other end of guide duct be the air-out end, the reflector body on correspond the air-out end and be provided with the fretwork chamber that is used for installing LED, air-out end department be provided with a plurality of reposition of redundant personnel fins. The air channel component is an air channel structure required by LED heat dissipation and used for conveying air volume, the reflector body is a reflector structure meeting the lighting requirement of a lamp and providing reflection for an LED light source, the air channel component comprises a plurality of splitter plates arranged on the reflector body, an air guide groove is formed between every two adjacent splitter plates, one end of the air guide groove is an air inlet end, the other end of the air guide groove is an air outlet end, the whole splitter plates are arc-shaped, a hollow cavity used for installing the LED is formed in the reflector body corresponding to the air outlet end, a plurality of splitter fins are arranged at the air outlet end, the air enters the corresponding air guide groove from the air inlet end, the splitter plates can play a role of primary splitting, then the air in the air guide groove is subjected to secondary splitting through the splitter fins and reaches the LED position to provide heat dissipation for the LED, so that the LED can have sufficient heat dissipation effect, the heat dissipation effect is good, the reflector and the air channel are integrated through optimization and adjustment of the product structure, the mold processing working hour is shortened, the cost is reduced, and meanwhile, the integrated structure greatly saves the layout space of the lamp.
Preferably, the number of the splitter plates is 5, and 4 air guide grooves are formed between 5 splitter plates. The number of flow distribution plates is 5, 4 air guide grooves are formed among the 5 flow distribution plates, the structural design is reasonable, and the actual requirements are met.
Preferably, the distances from the air outlet ends to the air inlet ends on the 4 air guide grooves are a first air outlet end, a second air outlet end, a third air outlet end and a fourth air outlet end from near to far, the number of the shunting fins on the first air outlet end is 2, and the thickness of the shunting fins is 2.1mm to 2.6mm. The distance from the air inlet end to the air outlet end on 4 guide grooves is sequentially a first air outlet end, a second air outlet end, a third air outlet end and a fourth air outlet end from near to far, the length of 5 splitter plates is sequentially increased towards the direction of the air inlet end, the number of splitter fins on the first air outlet end is 2, the thickness of the splitter fins is 2.1mm to 2.6mm, the position of the first air outlet end is closer to the air inlet end, the air volume is relatively large, and the air inlet proportion is designed to be 20% in the air channel component.
Preferably, the number of the shunting fins on the second air outlet end is 4, and the thickness of the shunting fins is 4.7mm-4.3mm. The number of the shunting fins on the second air outlet end is 4, the thickness of the shunting fins is 4.7mm to 4.3mm, and the air inlet proportion is 23% in the air duct assembly.
Preferably, the number of the flow dividing fins on the third air outlet end is 3, and the thickness of the flow dividing fins is 7.5mm to 4.8mm. The number of the shunting fins on the third air outlet end is 3, the thickness is 7.5 mm-4.8 mm, and the air inlet proportion is designed to be 26% in the air duct assembly.
Preferably, the number of the shunting fins on the fourth air outlet end is 4, and the thickness of the shunting fins is 6.9mm-4.1mm. The number of the shunting fins on the fourth air outlet end is 4, the thickness of the shunting fins is 6.9mm to 4.1mm, and the air inlet proportion is 31% in the air duct assembly, so that the proportion of the air inlet of the corresponding air duct and the structural size of the secondary shunting fins can be adjusted according to the distance between the LEDs, the air quantity is conveyed for the LED light source, and the LEDs at different distances are ensured to achieve the effect of uniform heat dissipation.
Preferably, the side walls of the shunting fins are provided with flow guiding devices, each flow guiding device comprises a groove arranged on each shunting fin, each groove is internally and rotatably connected with an air deflector through a rotating shaft, the bottom surface of each groove is provided with an ejection device corresponding to the corresponding air deflector, each ejection device comprises a supporting shell fixed on the bottom surface of each groove, an air storage cavity is arranged in each supporting shell, a sliding block is connected in each air storage cavity in a sliding mode, each sliding block is provided with an ejection rod extending out of the corresponding supporting shell and used for abutting against the corresponding air deflector, and an ejection spring is arranged between each sliding block and the bottom surface of each air storage cavity. The LED heat dissipation device comprises a groove arranged on the shunting fin, an air deflector is rotatably connected in the groove through a rotating shaft, an ejection device is arranged on the bottom surface of the groove and corresponds to the air deflector, the ejection device comprises a support shell fixed on the bottom surface of the groove, an air storage cavity is arranged in the support shell, a sliding block is connected in the air storage cavity in a sliding mode, an ejection rod extending out of the support shell and used for abutting against the air deflector is arranged on the sliding block, an ejection spring is arranged between the sliding block and the bottom surface of the air storage cavity, the ejection rod can abut against the air deflector under the action of the ejection spring, when wind flows in the air guide groove, the wind can blow onto the air deflector, the air deflector can rotate along the rotating shaft after being stressed, the air deflector can drive the ejection rod and the sliding block to move after overcoming the spring force of the ejection spring when being pressed on the ejection rod, and the wind flow is uneven.
Preferably, the air storage device further comprises a buffering air bag arranged on the bottom surface of the groove, an exhaust pipe is connected to the buffering air bag, and one end, far away from the buffering air bag, of the exhaust pipe is communicated to the air storage cavity. The air guide plate is characterized by further comprising a buffering air bag arranged on the bottom surface of the groove, an exhaust pipe is connected to the buffering air bag, one end, far away from the buffering air bag, of the exhaust pipe is communicated into the air storage cavity, when the wind power in the air guide groove is large, the wind power borne by the air guide plate is large, the air guide plate can move towards the direction close to the bottom of the groove, the slider can compress the ejection spring under stress and then slide in the air storage cavity, so that the gas in the air storage cavity is extruded into the buffering air bag through the exhaust pipe, on one hand, smooth flowing of the gas in the air storage cavity is guaranteed, on the other hand, the buffering air bag can abut against the air guide plate after being stressed and expanded, further moving of the air guide plate towards the bottom of the groove is prevented through the combined action of the ejection rod and the buffering air bag, the air guide plate can continuously swing after being stressed by unbalanced force, so that the air is driven to flow towards different areas, and the heat dissipation effect is improved; when the wind power borne by the air deflector is small, the ejector rod and the sliding block can move under the action of the ejector spring, so that the gas in the buffering air bag can flow back into the gas storage cavity through the exhaust pipe, and the flow guide device can play a stabilizing role.
Therefore, the heat dissipation structure integrating the reflector and the air duct has the following advantages: the invention can optimize the structural design of the product, save the internal structural layout space of the front combination lamp, reduce the production cost and have better heat dissipation effect.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the inventive flow distribution fin.
Fig. 3 is a cross-sectional view at a in fig. 2.
Fig. 4 is a schematic structural view of the deflector of the present invention.
Illustration of the drawings: the reflector comprises a reflector body 1, a hollow cavity 2, a splitter plate 3, an air guide groove 4, a splitter fin 5, an air inlet end 6, an air outlet end 7, an air guide plate 8, a groove 9, an air exhaust pipe 10, a buffer air bag 11, an ejection device 12, a support shell 13, an ejection rod 14, a sliding block 15, an air storage cavity 16, an ejection spring 17 and a rotating shaft 18.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in fig. 1, a reflector and air duct integrated heat dissipation structure, including a reflector body 1 and an air duct assembly, the air duct assembly is an air duct structure required by LED heat dissipation, and is used for air volume transportation, the reflector body 1 is a reflector structure meeting lighting requirements of a lamp, and provides reflection for an LED light source, the air duct assembly includes a plurality of splitter plates 3 disposed on the reflector body 1, an air guiding slot 4 is formed between two adjacent splitter plates 3, one end of the air guiding slot 4 is an air inlet end 6, the other end of the air guiding slot 4 is an air outlet end 7, the splitter plates 3 are integrally arc-shaped, a hollow cavity 2 for mounting an LED is disposed on the reflector body 1 corresponding to the air outlet end 7, a plurality of splitter fins 5 are disposed at the air outlet end 7, wind enters the corresponding air guiding slot 4 from the air inlet end 6, the splitter plates 3 can play a role of primary splitting, then wind in the air guiding slot 4 is split secondarily through the splitter fins 5 to reach the LED position, thereby providing heat dissipation for the LED, thereby achieving a sufficient heat dissipation effect on the LED, and optimizing and adjusting the structure of the lamp, and reducing the space cost of the integrated lamp.
The number of the splitter plates 3 is 5, 4 air guide grooves 4 are formed among the 5 splitter plates 3, the structural design is reasonable, and the actual requirements are met.
The distances from the air outlet end 7 to the air inlet end 6 on the 4 air guide grooves 4 are a first air outlet end 7, a second air outlet end 7, a third air outlet end 7 and a fourth air outlet end 7 from near to far, the lengths of the 5 splitter plates 3 are sequentially increased towards the direction far away from the air inlet end 6, the number of the splitter fins 5 on the first air outlet end 7 is 2, the thickness is 2.1mm to 2.6mm, the position of the first air outlet end 7 is close to the position of the air inlet end 6, the air volume is relatively large, and the air inlet proportion is designed to be 20% in the air duct assembly; the number of the shunting fins 5 on the second air outlet end 7 is 4, the thickness is 4.7mm-4.3mm, and the air inlet proportion is 23% in the air duct assembly; the number of the shunting fins 5 on the third air outlet end 7 is 3, the thickness is 7.5mm to 4.8mm, and the air inlet proportion is designed to be 26% in the air duct component; the number of the shunting fins 5 on the fourth air outlet end 7 is 4, the thickness is 6.9mm to 4.1mm, and the air inlet proportion is 31% in the air duct assembly, so that the proportion of the air inlet of the corresponding air duct and the structural size of the secondary shunting fins 5 can be adjusted according to the distance between the LEDs, the air quantity is conveyed for the LED light source, and the LEDs at different distances are ensured to achieve the effect of uniform heat dissipation.
As shown in fig. 2, 3 and 4, a flow guiding device is disposed on a side wall of the flow dividing fin 5, the flow dividing fin 5 is arc-shaped, so as to better guide wind to a target position, the flow guiding device includes a groove 9 disposed on the flow dividing fin 5, a wind deflector 8 is rotatably connected in the groove 9 through a rotating shaft 18, an ejection device 12 is disposed on a bottom surface of the groove 9 corresponding to the wind deflector 8, the ejection device 12 includes a support shell 13 fixed on the bottom surface of the groove 9, a gas storage cavity 16 is disposed in the support shell 13, a slider 15 is slidably connected in the gas storage cavity 16, an ejection rod 14 extending out of the support shell 13 and abutting against the wind deflector 8 is disposed on the slider 15, an ejection spring 17 is disposed between the slider 15 and the bottom surface of the gas storage cavity 16, the ejection rod 14 abuts against the wind deflector 8 under the action of the ejection spring 17, when wind flows in the wind guiding groove 4, the wind deflector 8 blows onto the wind deflector 8, the wind deflector 8 rotates along the rotating shaft 18 after receiving force, the wind deflector 8 presses on the ejection rod 14 to drive the ejection rod 14 and the slider 15 to overcome the spring force of the ejection rod 17, thereby the force, when the wind moves, the wind moves more uniformly, so that the wind deflector 8 moves toward the heat dissipation area, thereby enabling the heat dissipation area, and the heat sink area to be more uniformly, thereby enabling the heat sink area to be more uniformly.
The air guide plate is characterized by further comprising a buffering air bag 11 arranged on the bottom surface of the groove 9, an exhaust pipe 10 is connected to the buffering air bag 11, one end, far away from the buffering air bag 11, of the exhaust pipe 10 is communicated into the air storage cavity 16, when the wind force in the air guide groove 4 is large, the air guide plate 8 is subjected to large wind force and can move towards the direction close to the bottom of the groove 9, the slider 15 is stressed to compress the ejection spring 17 and then slides in the air storage cavity 16, so that the gas in the air storage cavity 16 is extruded into the buffering air bag 11 through the exhaust pipe 10, smooth flowing of the gas in the air storage cavity 16 is guaranteed on one hand, the buffering air bag 11 is stressed to expand and then abuts against the air guide plate 8 on the other hand, further, the air guide plate 8 is prevented from moving towards the direction of the bottom of the groove 9 through the combined action of the ejection rod 14 and the buffering air bag 11, the air guide plate 8 can continuously swing under unbalanced force, and accordingly the air is driven to flow towards different areas, and the heat dissipation effect is improved; when the wind power borne by the air deflector 8 is small, the ejector rod 14 and the sliding block 15 move under the action of the ejector spring 17, so that the gas in the buffering air bag 11 flows back into the gas storage cavity 16 through the exhaust pipe 10, and the flow guide device is guaranteed to play a stabilizing role.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (6)
1. A reflector and air channel integrated heat dissipation structure comprises a reflector body and an air channel assembly, and is characterized in that the air channel assembly comprises a plurality of splitter plates arranged on the reflector body, an air guide groove is formed between every two adjacent splitter plates, one end of the air guide groove is an air inlet end, the other end of the air guide groove is an air outlet end, a hollow cavity for mounting an LED is arranged on the reflector body corresponding to the air outlet end, and a plurality of splitter fins are arranged at the air outlet end;
the side walls of the shunting fins are provided with flow guide devices, each flow guide device comprises a groove arranged on each shunting fin, an air deflector is rotatably connected in each groove through a rotating shaft, an ejection device is arranged on the bottom surface of each groove corresponding to the corresponding air deflector, each ejection device comprises a support shell fixed on the bottom surface of each groove, an air storage cavity is arranged in each support shell, a sliding block is connected in each air storage cavity in a sliding mode, each sliding block is provided with an ejection rod which extends out of each support shell and is used for abutting against the corresponding air deflector, and an ejection spring is arranged between each sliding block and the bottom surface of each air storage cavity;
the air storage device is characterized by further comprising a buffering air bag arranged on the bottom surface of the groove, an exhaust pipe is connected to the buffering air bag, and one end, far away from the buffering air bag, of the exhaust pipe is communicated to the air storage cavity.
2. The reflector and air duct integrated heat dissipation structure of claim 1, wherein the number of the splitter plates is 5, and 4 air guiding grooves are formed between 5 splitter plates.
3. The heat dissipation structure of claim 2, wherein the distances from the air outlet ends to the air inlet ends of the 4 air guide slots are, in order from near to far, a first air outlet end, a second air outlet end, a third air outlet end and a fourth air outlet end, the number of the flow dividing fins on the first air outlet end is 2, and the thickness of the flow dividing fins is 2.1mm to 2.6mm.
4. The heat dissipation structure integrated by a reflector and an air duct as claimed in claim 3, wherein the number of the flow dividing fins on the second air outlet end is 4, and the thickness of the flow dividing fins is 4.7mm to 4.3mm.
5. The reflector and air duct integrated heat dissipation structure as recited in claim 4, wherein the number of the flow dividing fins at the third air outlet end is 3, and the thickness of the flow dividing fins is 7.5mm to 4.8mm.
6. The reflector and air duct integrated heat dissipation structure as recited in claim 5, wherein the number of the shunting fins at the fourth air outlet end is 4, and the thickness of the shunting fins is 6.9mm to 4.1mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011391849.8A CN112728513B (en) | 2020-12-01 | 2020-12-01 | Reflector and air duct integrated heat dissipation structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011391849.8A CN112728513B (en) | 2020-12-01 | 2020-12-01 | Reflector and air duct integrated heat dissipation structure |
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| CN112728513A CN112728513A (en) | 2021-04-30 |
| CN112728513B true CN112728513B (en) | 2023-03-24 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832803A (en) * | 2015-03-27 | 2015-08-12 | 浙江美阳照明科技有限公司 | Inflatable LED bulb and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI385464B (en) * | 2008-07-11 | 2013-02-11 | Coretronic Corp | Heat-dissipating device and projection display apparatus having the same |
| FR3042259B1 (en) * | 2015-10-09 | 2018-09-07 | Valeo Vision | COOLING AIR DUCT FOR MOTOR VEHICLE PROJECTOR |
| US10393357B2 (en) * | 2016-12-28 | 2019-08-27 | WLC Enterprises, Inc. | Combination built-in air flow mechanism, grow lighting and bug killer |
| CN207527896U (en) * | 2017-11-29 | 2018-06-22 | 广东富华机械装备制造有限公司 | A kind of refrigerating box |
| CN210700222U (en) * | 2019-08-08 | 2020-06-09 | 苏州新格诺康生物技术有限公司 | A waterproofing mechanism for experiment mesa |
| CN211598336U (en) * | 2019-11-20 | 2020-09-29 | 广州金宏拓门业有限公司 | Civil air defense door with radiation protection and sound insulation functions |
| CN111578231A (en) * | 2020-04-03 | 2020-08-25 | 浙江零跑科技有限公司 | Active uniform heat dissipation equipment and method for LED far and near light module |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832803A (en) * | 2015-03-27 | 2015-08-12 | 浙江美阳照明科技有限公司 | Inflatable LED bulb and manufacturing method thereof |
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