CN109556010A - A kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements - Google Patents
A kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements Download PDFInfo
- Publication number
- CN109556010A CN109556010A CN201811597376.XA CN201811597376A CN109556010A CN 109556010 A CN109556010 A CN 109556010A CN 201811597376 A CN201811597376 A CN 201811597376A CN 109556010 A CN109556010 A CN 109556010A
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- CN
- China
- Prior art keywords
- light
- heat dissipation
- illuminating module
- reflector
- led
- 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.)
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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
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
-
- 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
- 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
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
-
- 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
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
-
- 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)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The present invention relates to a kind of illuminating modules and LED desk lamp for taking into account heat dissipation and light distribution requirements, illuminating module includes LED lamp panel component, condenser and heat dissipation reflector, the reflector that radiates includes integrally formed light-reflecting portion and fixed part, the fixed position is in one end of heat dissipation reflector, and inwardly angled overturning, the LED lamp panel component is arranged on the inner surface of the fixed part, the Ray obliquity that LED light on the LED lamp panel component issues is upward, condenser is located at the front of LED lamp panel, light-ray condensing for issuing LED light is in the reflective surface of reflector that radiates, reflective surface reflects light use for illumination again.Radiator and reflector are integrated together, and manufactured by integrally formed mode, reflective surface can play the role of secondary light-distribution, and have heat spreading function, can take into account heat dissipation and light distribution requirements；Number of parts is considerably less, and assembling is also very easy to, and saves desk lamp inner space, reduces whole lamp cost.
Description
Technical field
The present invention relates to lighting technical field more particularly to a kind of illuminating modules and LED for taking into account heat dissipation and light distribution requirements
Desk lamp.
Background technique
LED desk lamp form is varied in the prior art, there is straight-down negative, i.e. LED light is directly emitted to working face；There is side
Light source adds light guide plate form, and reflecting piece is arranged in guide-lighting back；Also there is LED light to irradiate upwards, reflector is set above light
Line reflects again.Suitable light type in order to obtain needs to carry out secondary light-distribution to the light of LED light, this just needs light distribution device
Part, LED light fever concentrates, needs to radiate well, need to be equipped with cooling fin very much, so the structure of LED desk lamp is still a little
Complicated, number of parts is more, and assembling is also more troublesome, and cost is difficult to further decrease.
Summary of the invention
The purpose of the present invention is to provide a kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements, number of components
Amount is less, assembling is easy, saves inner space, and cost is also greatly reduced.
The present invention is implemented as follows: a kind of illuminating module for taking into account heat dissipation and light distribution requirements, including LED lamp panel component,
Condenser and heat dissipation reflector, the heat dissipation reflector includes integrally formed light-reflecting portion and fixed part, the fixed position in
One end of heat dissipation reflector, and inwardly angled overturning, the LED lamp panel component are arranged on the inner surface of the fixed part, instead
Light portion inner surface is reflective surface, and the Ray obliquity that the LED light on the LED lamp panel component issues is upward, and the condenser is located at
The front of LED lamp panel, the light-ray condensing for issuing LED light is in the reflective surface of heat dissipation reflector, and reflective surface is again light
It reflects and is used for illumination.
Wherein, the heat dissipation reflector is made by aluminium alloy by extrusion molding.
Wherein, chrome layer is equipped on the reflective surface of the light-reflecting portion and the caustic surface of condenser.
Wherein, the chrome layer in the light-reflecting portion and condenser is made up of vacuum evaporation process, and reflecting rate is greater than 90%.
Wherein, heat conductive silica gel is also coated between the LED lamp panel component and fixed part.
Wherein, the back side of the light-reflecting portion is equipped with radiating fin.
Wherein, the LED lamp panel component is strip, and the condenser is also strip.
Wherein, for the radiating fin further away from fixed part, the length of radiating fin is longer.
Another technical solution provided by the invention are as follows: a kind of LED desk lamp including shell and is arranged on the housing
Illuminating module recited above.
The invention has the benefit that illuminating module of the present invention is integrated together radiator and reflector, and lead to
It crosses integrally formed mode to manufacture, fixed position is in one end of heat dissipation reflector, and inwardly angled overturning, LED light board group
After the inner surface of fixed part is arranged in part, the Ray obliquity that LED light issues is upward, is radiated at reflective surface after condenser optically focused
On, reflective surface reflects light use for illumination again, and light-reflecting portion can play the role of secondary light-distribution, and there is heat dissipation to make
With heat dissipation and light distribution requirements can be taken into account；Number of parts is considerably less, and assembling is also very easy to, and saves desk lamp inner space, reduces
Whole lamp cost.In addition, illuminating module optical design uses asymmetrical light distribution, the light that LED light issues passes through condenser
The reflex of optically focused, the reflector that radiates, it is amesiality, achieve the effect that polarisation, compared with traditional symmetrical light distribution, can incite somebody to action
Light is assigned to a specific region well, in the case where not adjusting desk lamp posture, meets user to optics aspect
It is required that reducing the loss of light.
Detailed description of the invention
Fig. 1 is the schematic cross-section of illuminating module embodiment of the present invention；
Fig. 2 is the light source principle of reflection figure of illuminating module embodiment of the present invention；
Fig. 3 is illuminating module embodiment of the present invention illumination data figure in height 400mm.
Wherein, 1, LED lamp panel component；11, LED light；2, condenser；3, radiate reflector；31, light-reflecting portion；32, fixed
Portion；33, radiating fin.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
LED desk lamp of the present invention includes shell and the illuminating module for taking into account heat dissipation and light distribution requirements, the illuminating module
Setting inside the shell, as the embodiment of the illuminating module, as shown in Figure 1 to Figure 3, including LED lamp panel component, condenser and
Radiate reflector, and the heat dissipation reflector includes integrally formed light-reflecting portion and fixed part, and the fixed position is reflective in radiating
One end of device, and inwardly angled overturning, light-reflecting portion inner surface are reflective surface, and the LED lamp panel component is arranged in the fixed part
Inner surface on, the Ray obliquity that LED light on the LED lamp panel component issues is upward, and the condenser is located at LED lamp panel
Front, for the light-ray condensing for issuing LED light in the reflective surface of reflector that radiates, light is reflected confession again by reflective surface
Illumination uses.
Illuminating module of the present invention is integrated together radiator and reflector, and is manufactured by integrally formed mode
Out, fixed position is in one end of heat dissipation reflector, and the interior table of fixed part is arranged in inwardly angled overturning, LED lamp panel component
Behind face, the Ray obliquity that LED light issues is upward, is radiated in light-reflecting portion after condenser optically focused, light-reflecting portion again reflects light
It is used out for illumination, light-reflecting portion can play the role of secondary light-distribution, and have heat spreading function, can take into account heat dissipation and light distribution
It is required that；Number of parts is considerably less, and assembling is also very easy to, and saves desk lamp inner space, reduces whole lamp cost.In addition, shining
Mould group optical design uses asymmetrical light distribution, as shown in Fig. 2, can be seen that LED light issued from the schematic diagram that light source reflects
Light is amesiality by the reflex of the optically focused of condenser, the reflector that radiates, has achieved the effect that polarisation, and traditional
Symmetrical light distribution is compared, and light can be assigned to well to a specific region, in the case where not adjusting desk lamp posture, is met and is made
Requirement of the user to optics aspect, reduces the loss of light.
As shown in figure 3, illumination data drawing when being this illuminating module height 400MM, highest brightness value is biased to illuminating module
Side, achieved the purpose that asymmetric light distribution.
In the present embodiment, the heat dissipation reflector is made by aluminium alloy (6063) by extrusion molding, then into
Row machining is cut into pieces.Correspondingly, the LED lamp panel component is strip, the condenser is also strip.
In the present embodiment, chrome layer is equipped on the reflective surface of the light-reflecting portion and the caustic surface of condenser.It is described
Chrome layer is preferably made up of vacuum evaporation process, and reflecting rate is greater than 90%.The substrate of condenser can be infused using plastic material
It is moulded into type, such as ABS material.Chrome layer made of vacuum evaporation process also plays very big work in whole secondary light-distribution
With.Vacuum evaporation is components to be placed into preset vacuum chamber (air pressure is 10ˉ2Within pa), the then plating in heating evaporation source
Material makes its atom or molecule gasify from surface and escapes, forms vapor stream, is incident on piece surface, and condensation forms solid film.Tool
Body Vacuum Deposition process are as follows: then polish parts surface carries out surface cleaning cleaning, then carries out vacuum evaporation, finally apply UV finishing coat,
Piece surface reflecting rate improves the light utilization efficiency of illuminating module 90% or more, to realize that the light distribution requirements of whole lamp are accomplished fluently
Basis.
In the present embodiment, heat conductive silica gel is also coated between the LED lamp panel component and fixed part.This illuminating module uses
Passive type backscatter mode, the method that conduction, radiation combine radiate to realize.Heat transfer is that LED lamp panel component and heat dissipation are reflective
Transmission of heat by contact between device, due to having the temperature difference between LED lamp panel component and heat dissipation reflector, by molecule in object, atom and
The micro molecule of free electron moves and the heat transfer type of progress.Heat conductive silica gel can make up for it LED lamp panel component and fixed part table
The defects of small injustice in face, deformation, keeps the two fitting closer, thermally conductive more smooth.Its thermal coefficient is greater than 1.5W/m.k.
In the present embodiment, the back side of the light-reflecting portion is equipped with radiating fin, increases heat dissipation area.The radiating fin is got over
Far from fixed part, the length of radiating fin is longer, and the worst place of heat conducting and radiating for being primarily due to this illuminating module is
LED lamp panel component, heat conductive silica gel, heat dissipation reflector combine position, need heat herein first to conduct, then outward into
Row heat dissipation, avoids excess calories from assembling.The verifying of scheme is also to calculate the effect of heat transfer herein, generally takes and assumes work temperature
The method of degree verifying power.The calculation of heat flow density: Q=λ (t1-t2)/δ.Wherein Q is heat flow density, and λ is thermally conductive system
Number, t1 are the temperature of LED lamp panel component, and t2 is the temperature of heat dissipation reflector fixed part, and δ is the thickness of heat conductive silica gel.
About 60 degree of t1, t2 calculates Q=1.5* (60- according to previous about 48 degree, λ about 1.5W/m.k, δ about 0.0002M of test
48)/0.0002, Q=240000W/M2, due to the area S=0.0007M of LED lamp panel and radiator2, so LED lamp panel component
Be approximately by thermally conductive in the heat conductive silica gel unit time under this temperature difference with heat dissipation reflector: Q*S ≈ 60W fully meets LED platform
The requirement of lamp (LED desk lamp luminous power is generally no greater than 15W).
Heat radiation: if object temperature is greater than absolute zero, all form can transmit energy outward in the form of an electromagnetic wave, and
Not against any medium, the heat radiation of the illuminating module is occurred mainly on heat dissipation reflector, and heat dissipation reflector is by polishing, electricity
Plating, the thermal emissivity on surface about 0.5.The calculation formula of heat radiation: Q=S* σ * ε * (t24–t34)。
Wherein, S: heat dissipation area (the default 0.04M of radiator2), σ: proportionality coefficient (Si Tefan constant), 5.67*10-8,
ε: material emission ratio (being approximately 0.5), t2: the temperature (321 °F default) of heat dissipation reflector fixed part, t3: the temperature of desk lamp shell
Degree (308 °F default).Q=0.4*5.67*10-8*0.5*(3214-3084)=18.4W.Illustrate at a predetermined temperature, desk lamp
It is able to bear the heat dissipation (greater than the requirement that general desk lamp product light source power is not more than 15W) of 18.5W after thermal balance, meets production
Product requirement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of illuminating module for taking into account heat dissipation and light distribution requirements, which is characterized in that including LED lamp panel component, condenser and dissipate
Hot reflector, the heat dissipation reflector include integrally formed light-reflecting portion and fixed part, and the fixed position is in heat dissipation reflector
One end, and inwardly angled overturning, the LED lamp panel component are arranged on the inner surface of the fixed part, light-reflecting portion inner surface
For reflective surface, the Ray obliquity that the LED light on the LED lamp panel component issues is upward, before the condenser is located at LED lamp panel
Side, in the reflective surface of reflector that radiates, reflective surface again reflects light for shining the light-ray condensing for issuing LED light
Bright use.
2. illuminating module according to claim 1, which is characterized in that the heat dissipation reflector is by aluminium alloy by being extruded into
Type is made.
3. illuminating module according to claim 2, which is characterized in that the reflective surface of the light-reflecting portion and the optically focused of condenser
Chrome layer is equipped on face.
4. illuminating module according to claim 3, which is characterized in that the chrome layer in the light-reflecting portion and condenser passes through
Vacuum evaporation process is made, and reflecting rate is greater than 90%.
5. illuminating module according to claim 1, which is characterized in that also applied between the LED lamp panel component and fixed part
There is heat conductive silica gel.
6. illuminating module according to claim 1, which is characterized in that the back side of the light-reflecting portion is equipped with radiating fin.
7. illuminating module according to claim 1, which is characterized in that the LED lamp panel component is strip, the optically focused
Device is also strip.
8. illuminating module according to claim 1, which is characterized in that the radiating fin is further away from fixed part, heat radiating fin
The length of piece is longer.
9. a kind of LED desk lamp, which is characterized in that including shell and setting inside the shell as described in any one of claim 1 to 8
Illuminating module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597376.XA CN109556010A (en) | 2018-12-26 | 2018-12-26 | A kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597376.XA CN109556010A (en) | 2018-12-26 | 2018-12-26 | A kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109556010A true CN109556010A (en) | 2019-04-02 |
Family
ID=65871304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811597376.XA Pending CN109556010A (en) | 2018-12-26 | 2018-12-26 | A kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109556010A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201269438Y (en) * | 2008-08-15 | 2009-07-08 | 杨毅博 | LED illumination optical system and lamp thereof |
| CN203880612U (en) * | 2014-06-04 | 2014-10-15 | 闵长伟 | Novel LED table lamp holder |
| CN207555293U (en) * | 2017-12-19 | 2018-06-29 | 厦门捷能通光电科技有限公司 | A kind of light fixture and desk lamp |
| CN209165111U (en) * | 2018-12-26 | 2019-07-26 | 深圳市帝狼光电有限公司 | A kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements |
-
2018
- 2018-12-26 CN CN201811597376.XA patent/CN109556010A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201269438Y (en) * | 2008-08-15 | 2009-07-08 | 杨毅博 | LED illumination optical system and lamp thereof |
| CN203880612U (en) * | 2014-06-04 | 2014-10-15 | 闵长伟 | Novel LED table lamp holder |
| CN207555293U (en) * | 2017-12-19 | 2018-06-29 | 厦门捷能通光电科技有限公司 | A kind of light fixture and desk lamp |
| CN209165111U (en) * | 2018-12-26 | 2019-07-26 | 深圳市帝狼光电有限公司 | A kind of illuminating module and LED desk lamp for taking into account heat dissipation and light distribution requirements |
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