CN109027958A - A kind of radiator for matrix LED car light - Google Patents

A kind of radiator for matrix LED car light Download PDF

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Publication number
CN109027958A
CN109027958A CN201810723871.4A CN201810723871A CN109027958A CN 109027958 A CN109027958 A CN 109027958A CN 201810723871 A CN201810723871 A CN 201810723871A CN 109027958 A CN109027958 A CN 109027958A
Authority
CN
China
Prior art keywords
radiator
shell
semiconductor chilling
chilling plate
car light
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.)
Pending
Application number
CN201810723871.4A
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Chinese (zh)
Inventor
樊嘉杰
陈威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hohai University Changzhou Campus
Original Assignee
Hohai University Changzhou Campus
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hohai University Changzhou Campus filed Critical Hohai University Changzhou Campus
Priority to CN201810723871.4A priority Critical patent/CN109027958A/en
Publication of CN109027958A publication Critical patent/CN109027958A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/54Cooling arrangements using thermoelectric means, e.g. Peltier elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The invention discloses a kind of radiators for matrix LED car light, including semiconductor heat-dissipating piece, semiconductor heat-dissipating piece fixing shell, needle column radiator, radiator shell, fan etc..The present apparatus reinforces heat dissipation effect using semiconductor chilling plate, the cold end of semiconductor chilling plate and hot end are ceramic wafer, circuit layer is covered in cold end ceramic wafer, LED light source is directly welded in cold end ceramic wafer, it avoids and uses PCB, the thermal conductivity of ceramics is high, facilitates the heat for generating LED to be transferred to radiator through semiconductor heat-dissipating piece, while avoiding the thermal contact resistance between PCB and semiconductor heat-dissipating piece.Semiconductor chilling plate is firmly fixed on radiator base plate by fixing shell, move it will not in automobilism.The present apparatus uses needle column radiator, surrenders arrangement with hour hands column, heat dissipation performance is good under forced convection conditions for this mode.The present apparatus can satisfy the cooling requirements of the matrix form car light using plurality of LEDs.

Description

A kind of radiator for matrix LED car light
Technical field
The present invention relates to a kind of radiators for matrix LED car light, belong to car light technical field of heat dissipation.
Background technique
LED has many advantages, such as high photosynthetic efficiency, high reliability, long-life, small size, therefore, is widely used in automobile photograph In bright.Use LED that there is higher brightness, farther irradiation distance and broader range of exposures as the car light of light source, it can be with Good illuminating effect is provided in night running for driver.LED is made of PN junction, the electronics and hole-recombination in the area PN, LED can launch light, and mainly in PN junction area, light-emitting area is very small for the light emitting region of LED.LED only will at work The electric energy of 20-30% is converted to luminous energy, and the electric energy of remaining 70-80% can be converted into thermal energy, and a large amount of heat concentrates on body The very small PN junction area of product, such as effectively heat cannot be discharged, the junction temperature of LED will be increased sharply.The junction temperature of LED is to its property Can have a great impact: junction temperature increases, the efficiency decline of LED, color temperature change, and color homogeneity is deteriorated, and the service life shortens, or even meeting PN junction is directly damaged, the failure of LED is caused.Therefore for the application with regard to LED on car light, good heat management is indispensable First propose condition.
With the development of car light technology, present car headlamp will not only provide enough illuminating effects, it is also contemplated that To the impression of other roads participant.It can be by individually controlling every LED using the matrix form headlamp that plurality of LEDs forms Light on and off come generate it is different go out light shape, when vehicle and pedestrian occurs in vehicle front, car light will form corresponding dark space, prevent it His road participant is dazzling.Matrix LED car light can take into account illuminating effect and safety, it will be widely studied and use.But It is that heat dissipation problem has to solve before application.Relative to traditional LED car lamp, matrix LED car light uses more numbers LED, easily just using dozens to hundreds of LED, therefore the heat dissipation task of matrix form car light is more arduous.
In car light, LED light source is welded on PCB, and the PCB with light source is separated with radiator.In radiation processes, Thermal contact resistance can be generated between PCB and radiator, influence to radiate.The heat source of matrix form car light is more, and heat is concentrated, traditional heat dissipation Device is difficult to meet matrix form car light cooling requirements on the basis of compact.
The patent of invention of Publication No. CN102102868B discloses a kind of active heat radiating device of automobile-used great power LED, The device used semiconductor chilling plate, it was demonstrated that application of the semiconductor chilling plate in car light heat dissipation.But the device need to be by The position of the fixed LED of plurality of plates, structural redundancy, and the volume for limiting semiconductor chilling plate cannot continue growing.
Summary of the invention
It is an object of the invention to solve above-mentioned technical deficiency, a kind of radiator haveing excellent performance is provided, it is big to meet The matrix LED car light cooling requirements of calorific value.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of radiator for matrix LED car light, it is characterised in that: described device includes semiconductor heat-dissipating piece, partly leads Body cooling fin fixing shell, needle column radiator, radiator shell and fan;The semiconductor chilling plate fixing shell and half Conductor cooling piece interference fit, the semiconductor chilling plate includes cold end ceramic wafer and hot end ceramic wafer, is covered in cold end ceramic wafer There is the circuit layer of LED light source, which can be freely arranged according to the demand for control of LED lamp bead.The needle column radiator packet Radiator base plate and needle column are included, LED light source and connector are welded in the cold end ceramic wafer of semiconductor chilling plate, semiconductor system Cold hot end potsherd fits in radiator base plate, is coated with heat-conducting glue therebetween;Needle column is by radiator shell and heat dissipation Device substrate surrounds, and the radiator shell is equipped with air intake vent and air outlet, fixes a fan at air intake vent.
The bottom end of above-mentioned semiconductor chilling plate fixing shell is provided with through-hole, opens up on the radiator base plate opposite with through-hole Semiconductor chilling plate fixing shell is fixed on radiator base plate by the threaded hole one answered by screw one.
The inner surface of the upper end of above-mentioned semiconductor chilling plate fixing shell is close to semiconductor chilling plate fixing shell surrounding Position at be respectively provided with indent inclined-plane, far from semiconductor chilling plate fixing shell surrounding semiconductor chilling plate fixing shell it is upper The inner surface at end is plane, is connected with indent inclined-plane.
The upper end of above-mentioned semiconductor chilling plate fixing shell is provided with square hole, the cold end ceramic wafer for semiconductor chilling plate Connector mounting.
Above-mentioned needle column cross arrangement.
One inclined-plane is set between the two sides and wind inlet end of above-mentioned radiator shell, so that radiator shell is from air intake vent Place is upwardly extended in horn-like.
Above-mentioned heat-dissipating casing wind inlet end is provided with threaded hole two, and fan is fixed on radiator shell by screw three.
Otic placode through-hole is arranged in the edge of the two sides of above-mentioned radiator shell, and setting and otic placode are logical on the radiator base plate The corresponding threaded hole three in hole, is fixed on radiator base plate for radiator shell using screw two.
Advantageous effects of the invention:
Compared with prior art, the present invention have following technical effect that matrix form car light is carried out using semiconductor chilling plate it is scattered Heat, heat dissipation effect is powerful, LED light source can be made to work at a lower temperature, can also be to LED light by semiconductor heat-dissipating piece Source carries out temperature control;Direct LED light source is welded in the cold end potsherd of semiconductor chilling plate, avoids using PCB, ceramic thermal conductivity Height facilitates the heat for generating LED to be transferred to radiator through semiconductor chilling plate, while avoiding PCB and semiconductor heat-dissipating piece Between thermal contact resistance;Radiator needle column is staggered, and is conducive to distinguished and admirable take away heat.
Detailed description of the invention
Fig. 1 is a kind of exploded view of the radiator for matrix LED car light of the present invention;
Fig. 2 is sectional view along A-A in Fig. 1;
Fig. 3 is needle column radiator in the top view for having needle column direction.
In the figure, it is marked as
1, semiconductor heat-dissipating piece;11, cold end potsherd;111, LED light source;112, connector;12, hot end potsherd;2, it partly leads Body cooling fin fixing shell;221, through-hole;24, square hole;3, needle column radiator;31, radiator base plate;311, through-hole; 312, threaded hole one;313, threaded hole three, 32, needle column;4, radiator shell;41, wind inlet end;411, threaded hole two;412, enter Air port;42, air outlet;431, inclined-plane;44, otic placode through-hole;5, fan;6, screw one;7, screw two;8, screw three.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of radiator for matrix LED car light, it is characterised in that: described device includes partly leading Body cooling fin 1, semiconductor heat-dissipating piece fixing shell 2, needle column radiator 3, radiator shell 4 and fan 5;The semiconductor Cooling piece fixing shell 2 and semiconductor chilling plate 1 are interference fitted, and the semiconductor chilling plate 1 includes cold end ceramic wafer 11 and heat Ceramic wafer 12 is held, the circuit layer of LED light source 111 is covered in cold end ceramic wafer 11, which can be according to the control need of LED lamp bead Ask free setting.The needle column radiator 3 includes radiator base plate 31 and needle column 32, LED light source 111 and connector 112 It is welded in semiconductor refrigerating 1 cold end ceramic wafer 11, the hot end potsherd 12 of semiconductor chilling plate fits in radiator base Plate 31, is coated with therebetween heat-conducting glue;Needle column 32 is surrounded by radiator shell 4 and radiator base plate 31, outside the radiator Shell 4 is equipped with air intake vent 412 and air outlet 42, and the position of air outlet 42 can not directly display in Fig. 1, opposite in air intake vent 412 Position at, 412 fix a fan 5 at air intake vent.
The bottom end 22 of above-mentioned semiconductor chilling plate fixing shell 2 is provided with through-hole 221, opened up on the radiator base plate 31 with The corresponding threaded hole 1 of through-hole 221, is fixed on radiator base plate for semiconductor chilling plate fixing shell 2 by screw 1 On 31.Serious vibration, semiconductor chilling plate fixing shell 2 will firmly fix the position of semiconductor chilling plate 1 to automobile at work It sets, moves its position.
As shown in Fig. 2, the inner surface of the upper end 21 of above-mentioned semiconductor chilling plate fixing shell 2 is close to semiconductor chilling plate It is respectively provided with indent inclined-plane at the position of 2 surrounding 23 of fixing shell, the semiconductor far from semiconductor chilling plate fixing shell surrounding 23 The inner surface of the upper end 21 of cooling piece fixing shell 2 is plane, is connected with indent inclined-plane.Semiconductor chilling plate fixing shell 2 This structure of the inner surface of upper end 21 can compress semiconductor chilling plate 1, while avoid cold end ceramic wafer 11 because of surrounding Edge stress and cause internal protrusion.
The upper end 21 of above-mentioned semiconductor chilling plate fixing shell 2 is provided with square hole 24, and the cold end for semiconductor chilling plate 1 is made pottery Connector mounting 112 on porcelain plate 11.
Above-mentioned 32 cross arrangement of needle column.
One inclined-plane 431 is set between the two sides 43 and wind inlet end 41 of above-mentioned radiator shell 4, so that radiator shell 4 412 upwardly extend in horn-like from air intake vent.
Above-mentioned heat-dissipating casing wind inlet end 41 is provided with threaded hole 2 411, and fan 5 is fixed on radiator shell by screw 38 4。
As shown in figure 3, otic placode through-hole 44, the radiator base is arranged in the edge of the two sides 43 of above-mentioned radiator shell 4 Threaded hole 3 313 corresponding with otic placode through-hole 44 is set on plate 31, radiator shell 4 is fixed on heat dissipation using screw 27 On device substrate 31.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations Also it should be regarded as protection scope of the present invention.

Claims (8)

1. a kind of radiator for matrix LED car light, it is characterised in that: described device includes semiconductor heat-dissipating piece, half Radiating conductor film fixing shell, needle column radiator, radiator shell and fan;The semiconductor chilling plate fixing shell with Semiconductor chilling plate interference fit, the semiconductor chilling plate includes cold end ceramic wafer and hot end ceramic wafer, in cold end ceramic wafer It is covered with the circuit layer of LED light source, the needle column radiator includes that radiator base plate and needle column, LED light source are equal with connector It is welded in the cold end ceramic wafer of semiconductor chilling plate, the hot end potsherd of semiconductor chilling plate fits in radiator base plate, the two Between be coated with heat-conducting glue;Needle column is surrounded by radiator shell and radiator base plate, the radiator shell be equipped with air intake vent with Air outlet fixes a fan at air intake vent.
2. a kind of radiator for matrix LED car light according to claim 1, it is characterised in that: described partly to lead The bottom end of body cooling piece fixing shell is provided with through-hole, and threaded hole one corresponding with through-hole is opened up on the radiator base plate, leads to It crosses screw one semiconductor chilling plate fixing shell is fixed on radiator base plate.
3. a kind of radiator for matrix LED car light according to claim 1, it is characterised in that: described partly to lead In the inner surface of the upper end of body cooling piece fixing shell is respectively provided at the position close to semiconductor chilling plate fixing shell surrounding Concave face, and the inner surface of the upper end of the semiconductor chilling plate fixing shell far from semiconductor chilling plate fixing shell surrounding is flat Face is connected with indent inclined-plane.
4. a kind of radiator for matrix LED car light according to claim 1, it is characterised in that: described partly to lead The upper end of body cooling piece fixing shell is provided with square hole, the connector mounting on the cold end ceramic wafer of semiconductor chilling plate.
5. a kind of radiator for matrix LED car light according to claim 1, it is characterised in that: the needle column Cross arrangement.
6. a kind of radiator for matrix LED car light according to claim 1, it is characterised in that: the heat dissipation One inclined-plane is set between the two sides and wind inlet end of device shell, so that radiator shell upwardly extends from air intake vent in loudspeaker Shape.
7. a kind of radiator for matrix LED car light according to claim 1, it is characterised in that: the heat dissipation Shell wind inlet end is provided with threaded hole two, and fan is fixed on radiator shell by screw three.
8. a kind of radiator for matrix LED car light according to claim 1, it is characterised in that: the heat dissipation Otic placode through-hole is arranged in the edge of the two sides of device shell, setting threaded hole corresponding with otic placode through-hole on the radiator base plate Three, radiator shell is fixed on radiator base plate using screw two.
CN201810723871.4A 2018-07-04 2018-07-04 A kind of radiator for matrix LED car light Pending CN109027958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810723871.4A CN109027958A (en) 2018-07-04 2018-07-04 A kind of radiator for matrix LED car light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810723871.4A CN109027958A (en) 2018-07-04 2018-07-04 A kind of radiator for matrix LED car light

Publications (1)

Publication Number Publication Date
CN109027958A true CN109027958A (en) 2018-12-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110529800A (en) * 2019-09-25 2019-12-03 安徽明威照明器材有限公司 The available track lamp of thermal energy

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201196510Y (en) * 2008-03-17 2009-02-18 庆杨 Semiconductor refrigeration device, constant temperature heat radiating device and constant temperature high-protection electric control cabinet
CN201382279Y (en) * 2009-01-24 2010-01-13 郑深全 Ceramic semiconductor thermoelectric cooling LED
CN102102868A (en) * 2010-11-18 2011-06-22 常州星宇车灯股份有限公司 Large-power light emitting diode (LED) active radiating device for car lamp
US8939627B2 (en) * 2011-07-29 2015-01-27 Stanley Electric Co., Ltd. Vehicle lighting unit
CN204345424U (en) * 2015-01-14 2015-05-20 深圳宏鑫瑞特科技有限公司 The LED bay light of high efficiency and heat radiation
CN204885155U (en) * 2014-06-30 2015-12-16 立碁电子工业股份有限公司 Light -emitting diode module
CN205254350U (en) * 2015-12-07 2016-05-25 大族激光科技产业集团股份有限公司 Radiator
CN107120542A (en) * 2017-04-20 2017-09-01 江苏大学 The heat abstractor and method of a kind of high-powered LED lamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201196510Y (en) * 2008-03-17 2009-02-18 庆杨 Semiconductor refrigeration device, constant temperature heat radiating device and constant temperature high-protection electric control cabinet
CN201382279Y (en) * 2009-01-24 2010-01-13 郑深全 Ceramic semiconductor thermoelectric cooling LED
CN102102868A (en) * 2010-11-18 2011-06-22 常州星宇车灯股份有限公司 Large-power light emitting diode (LED) active radiating device for car lamp
US8939627B2 (en) * 2011-07-29 2015-01-27 Stanley Electric Co., Ltd. Vehicle lighting unit
CN204885155U (en) * 2014-06-30 2015-12-16 立碁电子工业股份有限公司 Light -emitting diode module
CN204345424U (en) * 2015-01-14 2015-05-20 深圳宏鑫瑞特科技有限公司 The LED bay light of high efficiency and heat radiation
CN205254350U (en) * 2015-12-07 2016-05-25 大族激光科技产业集团股份有限公司 Radiator
CN107120542A (en) * 2017-04-20 2017-09-01 江苏大学 The heat abstractor and method of a kind of high-powered LED lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110529800A (en) * 2019-09-25 2019-12-03 安徽明威照明器材有限公司 The available track lamp of thermal energy

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