CN104456205B - A kind of LED lamp - Google Patents
A kind of LED lamp Download PDFInfo
- Publication number
- CN104456205B CN104456205B CN201410714953.4A CN201410714953A CN104456205B CN 104456205 B CN104456205 B CN 104456205B CN 201410714953 A CN201410714953 A CN 201410714953A CN 104456205 B CN104456205 B CN 104456205B
- Authority
- CN
- China
- Prior art keywords
- led
- frame wall
- radiating subassembly
- led lamp
- luminescence components
- 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.)
- Expired - Fee Related
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
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- 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
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
-
- 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
- F21Y2101/00—Point-like light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention provides a kind of LED lamp, it includes radiating subassembly and LED luminescence components, the LED luminescence components include multiple LED, and the radiating subassembly includes at least one its section for the frame wall for being fitted the distribution path of the LED and extending to the emission side in contrast to the LED；The radiating subassembly is connected with the LED luminescence components in the way of thermally contacting.Above-mentioned LED lamp takes full advantage of radiating principle, correspondence LED spread geometry or heat dissipation path are rationally provided with the cross sectional shape of radiating subassembly, or correspondence the rational in infrastructure of radiating subassembly has been laid out LED, simultaneously efficient radiator structure is devised using the component of the intrinsic light fixture such as frame wall, while effectively reduction LED junction temperature rise △ t, light fixture cost is also reduced, assembly technology is simplified and the overall aesthetics of LED lamp is maintained.
Description
Technical field
The present invention relates to a kind of lighting apparatus, more particularly to a kind of LED lamp.
Background technology
With stepping up for great power LED light efficiency, LED lamp has been widely used in lighting field, wherein using
LED has the technical characteristics such as energy-conservation, long-life as the light fixture of light source.But LED is as traditional light source, it is in the work phase
Between can also produce heat, and produce heat number depend on the overall luminous efficiencies of LED.Specifically, LED element work
Make the life-span and operating temperature is inversely proportional, thus good radiating is the important step of LED lamp design.Current existing LED
Tool is all using the layout structure for fixing LED lamp beads centralization, then will by means of the LED fin slices radiators dedicated for radiating
LED heat take away and by fin to air exchange heat to reach the purpose of radiating.
The problem of so designing is：Because LED lamp bead is to concentrate densely to be fixed on a relatively small area,
Difficulty of the substantial amounts of heat due to also increasing outwards transmission heat while synergistic effect has raised temperature, especially high-power
Using when cause the not smooth bottleneck of heat dissipation channel.Meanwhile, employ the fin slices radiator that volume is big, weight is heavy and also improve
Light fixture cost, in addition, for the installation for coordinating fin slices radiator, overall its aesthetic appearance, in addition it is also necessary to the complicated structure of design and
Fin slices radiator is fixed and wrapped up by shell.
The content of the invention
In view of this, the present invention provides a kind of LED lamp that can be solved the above problems.
To solve the above problems, the present invention provides a kind of LED lamp, it includes radiating subassembly and LED luminescence components, described
LED luminescence components include multiple LED, and the radiating subassembly includes at least one its section to be fitted the distribution path of the LED
And the frame wall extended to the emission side in contrast to the LED；The LED luminescence components also include be arranged on the LED with it is described
Circuit board between radiating subassembly, is connected with each other between the circuit board and the radiating subassembly by thermal interfacial material；It is so-called
Fitting refers to be fitted the shape of the frame wall by least square method:Some discrete function values of known specific function,
By adjusting some undetermined coefficients in the function so that the difference of the function and known point set is minimum, wherein, the discrete function
It is worth the position data on circuit boards for the LED, and cutting for the frame wall is calculated by specific function and undetermined coefficient
The shape in face.
Preferably, the section of the frame wall be shaped as circle, ellipse, quadrangle, pentagon or hexagon wherein it
One.
Preferably, the area of section of the frame wall is gradually reduced by one end provided with the LED towards another opposite end.
Preferably, the radiating subassembly also includes Fixed Division, and the Fixed Division is lighted by the frame wall adjacent to the LED
The side of component is radially extended to be formed, and the Fixed Division is connected with LED luminescence components in the way of thermally contacting.
Preferably, the LED lamp also includes the connecting plate for connecting the frame wall and the LED luminescence components, the company
Fishplate bar is connected with the frame wall and the LED luminescence components in the way of thermally contacting, and the frame wall and the connecting plate
A closed form body is surrounded jointly.
Preferably, the radiating subassembly also includes the roof and bottom wall being connected with the frame wall, the roof, the bottom wall
And the frame wall is collectively forming the housing of a closed form.
The invention has the advantages that：
Above-mentioned LED lamp takes full advantage of radiating principle, and correspondence LED spread geometry or heat dissipation path, which are rationally provided with, to be dissipated
The cross sectional shape of hot component, or correspondence the rational in infrastructure of radiating subassembly have been laid out LED, while utilizing frame wall, roof and bottom wall etc.
The component of intrinsic light fixture devises efficient radiator structure, while effectively reduction LED junction temperature rise Δ t, also reduces light fixture
Cost, simplify assembly technology and maintain the overall aesthetics of LED lamp.
Brief description of the drawings
Fig. 1 is the structural representation of LED lamp in the embodiment of the present invention.
Fig. 2 is the floor map of LED lamp shown in Fig. 1, wherein the rounded arrangements of the LED.
Fig. 3 is diagrammatic cross-section of the LED lamp along line A-A shown in Fig. 1, wherein the rounded arrangements of the LED.
Fig. 4 is the floor map of LED lamp shown in Fig. 1, wherein the rectangular arrangements of the LED.
Fig. 5 is diagrammatic cross-section of the LED lamp along line A-A shown in Fig. 1, wherein the rectangular arrangements of the LED.
Fig. 6 is the structural representation of LED lamp in another embodiment of the present invention.
Fig. 7 is the structural representation of LED lamp in further embodiment of this invention.
Fig. 8 is the structural representation of LED lamp in yet another embodiment of the invention.
Fig. 9 is the structural representation of LED lamp in the other another embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.
Referring to Fig. 1, the embodiment of the present invention provides a kind of LED lamp 100, including a radiating subassembly 10 and a LED light
Component 20.Wherein, LED luminescence components 20 are included in certain regularly arranged multiple LED (light emitting diode) 23.
Radiating subassembly 10 includes at least one its section for fitting LED 23 distribution path and in contrast to LED's 23
The frame wall 11 of emission side extension, radiating subassembly 10 is connected with LED luminescence components 20 in the way of thermally contacting.If it is appreciated that
The design and manufacture of frame wall 11 are first, and to improve the radiating effect of LED lamp 100, LED's can correspond to the structure of frame wall 11
It is laid out, i.e. LED 23 is arranged at one end of frame wall 11 by path profile of the cross sectional shape of matching frame wall 11；If in addition,
Known LED heat distribution path, the structure of frame wall 11 can then be designed according to LED 23 heat distribution path, i.e. frame
Wall 11 can be fitted LED 23 heat distribution path and extend to be formed to the emission side in contrast to LED 23.
LED luminescence components 20 also include a circuit board 21, and the LED 23 is fixed on circuit board 21.Specifically, radiating
It is connected with each other between component 10 and the component of circuit board 21 by thermal interfacial material.Further, circuit board 21 and radiating subassembly 10
Between be provided with thermal interfacial material (not shown), to fill up what is produced when circuit board 21 is engaged or contacted with radiating subassembly 10
The hole of microvoid and surface irregularity, reduces heat transfer contact thermal resistance, improves the thermal diffusivity of circuit board 21 and radiating subassembly 10
Can, so that the heat for being distributed LED light-emitting component 20 is quickly conducted to radiating subassembly 10.The present embodiment is specifically used
During, circuit board 21 can be bonded in the one end of radiating subassembly 10 using this thermal interfacial material of heat-conducting glue.
So-called fitting refers to some discrete function values { f1, f2 ..., fn } of certain known function, by adjusting in the function
Some undetermined coefficient f (λ 1, λ 2 ..., λ n) so that the difference (least square meaning) of the function and known point set is minimum.This reality
Apply in example, the discrete function value { f1, f2 ..., fn } is position datas of the LED 23 on circuit board 21, and is passed through
Specific function and undetermined coefficient f (λ 1, λ 2 ..., λ n) calculate the shape in the section of frame wall 11, finally calculate obtained frame wall
11 cross sectional shape is close or is same as LED 23 spread geometry.LED 23 spread geometry can be circular, ellipse, four
One of side shape, pentagon or hexagon, accordingly, the cross sectional shape of frame wall 11 can also be circular, ellipse, four sides
One of shape, pentagon or hexagon.
The structure when LED 23 spread geometry is circle, accordingly, frame wall are shown also referring to Fig. 2-5, Fig. 2
11 cross sectional shape is also round (see Fig. 2), and two circular sizes are approached.Fig. 4 shows the arrangement shape as LED 23
Structure when shape is rectangle, accordingly, the cross sectional shape of frame wall 11 is similarly rectangle (see Fig. 5), and the size of two rectangles connects
Closely.
Also referring to Fig. 6 and Fig. 7, radiating subassembly 10 also includes a Fixed Division 13, and Fixed Division 13 is by frame wall 11 adjacent to LED
The side of luminescence component 20 is radially extended to be formed, and Fixed Division 13 is connected with LED luminescence components 10 in the way of thermally contacting.Its
In, the bearing of trend of Fixed Division 13 can, (see Fig. 6), can also be extended towards frame wall 11 is interior (see figure towards the outer extension of frame wall 11
7)。
Also referring to Fig. 8, LED lamp 100 also includes the connecting plate 30 of a connection frame wall 11 and LED luminescence components 20,
Connecting plate 30 is connected with frame wall 11 and LED luminescence components 30 in the way of thermally contacting, and frame wall 11 and connecting plate 30 are common
Surround a closed form body.In the present embodiment, connecting plate 30 is in " U " type, and " U " the arm part of connecting plate 30 is sheathed on frame
It is connected in wall 11 and with the inner surface wall of frame wall 11.
Also referring to Fig. 9, radiating subassembly 10 also includes the roof 15 and a bottom wall 17 being connected with frame wall 11, roof 15
Opposing bottom wall 17 is set, and roof 15, bottom wall 17 and frame wall 11 are collectively forming the housing of a closed form.Wherein, section of frame wall 11
Face area is gradually reduced by one end provided with LED 23 towards another opposite end, i.e., by one end of adjacent bottom wall 17 towards adjacent to roof 15
One end be gradually reduced.
The surfaces externally and internally of frame wall 11, roof 15 and bottom wall 17 is smooth surface so that radiating subassembly 10 when in use,
Heat loss through radiation can be carried out, i.e. the radiating effect of LED lamp 100 can be improved.The integrated beauty of LED lamp 100 can also be improved simultaneously
Sight degree and reduction manufacturing cost.Further, be improve radiating subassembly 10 heat-sinking capability, the radiating subassembly 10 by radiate compared with
Good material is made, such as aluminium alloy, ceramics etc..In the present embodiment, radiating subassembly 10 is made up of aluminium alloy.
Operationally, the heat produced by its LED luminescence component 20 is by hot interface material to LED lamp 100 in the present embodiment
Material is conducted to radiating subassembly 10, and is diffused, is radiated on whole radiating subassembly 10.The surface of radiating subassembly 10 passes through radiation
Mode and convection type are outwardly radiated.Wherein determine that the heat dissipation path of the radiating efficiency of LED lamp 100 in the present embodiment is deposited
Entire thermal resistance be equal to heat dissipation path links thermal resistance sum.After LED lamp energization work enough time, in certain environment
At temperature and air velocities, LED lamp can integrally reach a thermal balance, now the temperature of the light-emitting component 20 of LED lamp
The junction temperature liter of the LED lamp of temperature difference Δ t meanings between air, wherein LED lamp junction temperature rise more low, mean that LED's is pre-
Life-span phase is longer.
The factor that just influence LED lamp junction temperature rises below does following analysis：
The analysis of heat dissipation path is understood more than the LED light-emitting component 20 of LED lamp to heat-delivery surface be heat loss through conduction,
By each heat-delivery surface of LED lamp, to there is radiation external environment, both modes radiate with convection current, due to different radiating sides
Formula is related to different influence factors and computational methods, is discussed respectively below：
1st, during LED light-emitting component 20 to each heat-delivery surface of the LED lamp is heat loss through conduction extremely, junction temperature liter is influenceed
Δ t factor has LED dissipated power, the thermal conductivity factor of various heat sink materials, the sectional area of heat carrier, heat transfer in heat dissipation path
Length in path etc. four.So, the temperature difference of this section of heat-transfer path can be expressed with below equation：
Δ t1=LQ/KA；
Wherein, Q represents the dissipated power of LED lamp, and unit is W；K represents thermal conductivity factor, and unit is W/m DEG C；A is represented
The sectional area of heat carrier, unit is m2；Δ t1 represents this section of heat-transfer path two ends temperature difference, unit for DEG C；L represents heat transfer circuit path length
Degree, unit is m.
The present embodiment is employed LED 23 with point of one of circle, ellipse, quadrangle, pentagon or hexagon
Meter is casually arranged with, and radiating subassembly 10 is similar to the structure that LED 23 is distributed to its structure of part that LED 23 is neighbouring so that unit dissipates
Equivalent scattered wasted work rate Q on hot material significantly reduces, while adding equivalent heat carrier sectional area, is preferably dissipated with reaching
Thermal effect.
2nd, each heat-delivery surface from LED lamp is into the link of function of environment heat emission, and its convection type influenceed in heat transfer
The factor that junction temperature rises Δ t has three factors such as temperature difference of the coefficient of heat transfer, effective heat exchange area, heat exchange surface and fluid.Specifically may be used
To be expressed as follows with below equation：
Δ t2=Q/hcA；
Wherein, Q represents heat loss through convection amount, and unit is W；Hc represents the coefficient of heat transfer, and unit is W/m2·A；A represents effectively to change
Hot area, unit is m2；Δ t2 represents heat exchange surface and fluid temperature difference, unit for DEG C.
The present embodiment is using the surfaces externally and internally of the radiating subassembly 10 of whole LED lamp 100 as effective heat exchange area, its area
It has been more than traditional fin radiating structure, therefore this structure has good heat loss through convection effect.Simultaneously traditional fin radiating knot
The structure effects for considering heat loss through radiation not too much, in fact, not far due to being separated by between fin, the effect of heat loss through radiation is adjacent more
The absorption of fin is almost completely counterbalanced by and not worked, but in the LED lamp 100 of the present embodiment, due to whole radiating
The surfaces externally and internally of component 10 is smooth structure, therefore, and heat loss through radiation also plays very big effect, This further reduces
Junction temperature rises Δ t.
In summary, LED lamp 100 takes full advantage of radiating principle, correspondence LED 23 spread geometry in the present embodiment
Or heat dissipation path is rationally provided with the cross sectional shape of radiating subassembly 10, or correspondence the rational in infrastructure of radiating subassembly 10 has been laid out LED
23, while devising efficient radiator structure using the component of the intrinsic LED lamp such as frame wall 11, roof 15 and bottom wall 17, having
While effect reduction LED junction temperature rise Δ t, light fixture cost is also reduced, assembly technology is simplified and LED lamp 100 is maintained
Overall aesthetics.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements done etc. all should be included within the scope of protection of the invention.
Claims (6)
1. a kind of LED lamp, it includes radiating subassembly and LED luminescence components, and the LED luminescence components include multiple LED, and it is special
Levy and be, the radiating subassembly includes at least one its section for fitting LED distribution path and in contrast to the LED
Emission side extension frame wall；The LED luminescence components also include the circuit being arranged between the LED and the radiating subassembly
Plate, is connected with each other between the circuit board and the radiating subassembly by thermal interfacial material；So-called fitting refers to by a most young waiter in a wineshop or an inn
Multiplication is fitted to the shape of the frame wall:Some discrete function values of known specific function, if by adjusting in the function
Dry undetermined coefficient so that the difference of the function and known point set is minimum, wherein, the discrete function value is the LED in circuit
Position data on plate, and calculate by specific function and undetermined coefficient the shape in the section of the frame wall.
2. a kind of LED lamp as claimed in claim 1, it is characterised in that being shaped as the section of the frame wall is circular, oval
One of shape, quadrangle, pentagon or hexagon.
3. a kind of LED lamp as claimed in claim 1, it is characterised in that the area of section of the frame wall is by provided with the LED
One end be gradually reduced towards another opposite end.
4. a kind of LED lamp as claimed in claim 1, it is characterised in that the radiating subassembly also includes Fixed Division, described solid
Socket part is radially extended adjacent to the side of the LED luminescence components by the frame wall and formed, the Fixed Division and LED luminescence components with
The mode of thermo-contact is connected.
5. a kind of LED lamp as claimed in claim 1, it is characterised in that the LED lamp also include connecting the frame wall and
The connecting plate of the LED luminescence components, the connecting plate is with the frame wall and the LED luminescence components in the way of thermally contacting
It is connected, and the frame wall and the connecting plate surround a closed form body jointly.
6. a kind of LED lamp as claimed in claim 1, it is characterised in that the radiating subassembly also includes connecting with the frame wall
The roof and bottom wall connect, the roof, the bottom wall and the frame wall are collectively forming the housing of a closed form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714953.4A CN104456205B (en) | 2014-12-01 | 2014-12-01 | A kind of LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714953.4A CN104456205B (en) | 2014-12-01 | 2014-12-01 | A kind of LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104456205A CN104456205A (en) | 2015-03-25 |
| CN104456205B true CN104456205B (en) | 2017-10-27 |
Family
ID=52902705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714953.4A Expired - Fee Related CN104456205B (en) | 2014-12-01 | 2014-12-01 | A kind of LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104456205B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595748A (en) * | 2014-12-03 | 2015-05-06 | 方恒 | LED lamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986612Y (en) * | 2006-12-08 | 2007-12-05 | 张前 | LED luminous diode ring lighting |
| CN201069135Y (en) * | 2007-08-03 | 2008-06-04 | 王元成 | Lighting lamp |
| CN101457916B (en) * | 2007-12-14 | 2010-09-29 | 富准精密工业(深圳)有限公司 | LED lamp |
| CN101769455A (en) * | 2009-12-28 | 2010-07-07 | 深圳市成光兴实业发展有限公司 | LED bulb adopting whole-body fluorescence conversion technology |
| CN204254329U (en) * | 2014-12-01 | 2015-04-08 | 方恒 | A kind of LED lamp |
-
2014
- 2014-12-01 CN CN201410714953.4A patent/CN104456205B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104456205A (en) | 2015-03-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171027 Termination date: 20211201 |