CN109027958A - A kind of radiator for matrix LED car light - Google Patents
A kind of radiator for matrix LED car light Download PDFInfo
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
-
- 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
- F21V29/54—Cooling arrangements using thermoelectric means, e.g. Peltier elements
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
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
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.
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 |
Family
ID=65521717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810723871.4A Pending CN109027958A (en) | 2018-07-04 | 2018-07-04 | A kind of radiator for matrix LED car light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027958A (en) |
Cited By (5)
| 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 |
| CN112432085A (en) * | 2020-11-25 | 2021-03-02 | 浙江北光科技股份有限公司 | Surface-mounted down lamp with efficient heat dissipation function |
| CN112762377A (en) * | 2021-01-06 | 2021-05-07 | 义乌峯珩贸易有限公司 | Explosion-proof LED working lamp |
| CN112856332A (en) * | 2021-01-15 | 2021-05-28 | 广州燃烧电子科技有限公司 | Double-deck base plate LED car light module dispels heat |
| US11937875B2 (en) | 2021-11-15 | 2024-03-26 | Shenzhen Ulike Smart Electronics Co., Ltd. | Hair removing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| CN112762377A (en) * | 2021-01-06 | 2021-05-07 | 义乌峯珩贸易有限公司 | Explosion-proof LED working lamp |
| CN112856332A (en) * | 2021-01-15 | 2021-05-28 | 广州燃烧电子科技有限公司 | Double-deck base plate LED car light module dispels heat |
| US11937875B2 (en) | 2021-11-15 | 2024-03-26 | Shenzhen Ulike Smart Electronics Co., Ltd. | Hair removing device |
| US11969207B2 (en) | 2021-11-15 | 2024-04-30 | Shenzhen Ulike Smart Electronics Co., Ltd. | Hair removing device |
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Application publication date: 20181218 |
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