CN103743544B - A kind of LED module and the hot matching detection method of light fixture and assembly method thereof - Google Patents
A kind of LED module and the hot matching detection method of light fixture and assembly method thereof Download PDFInfo
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- CN103743544B CN103743544B CN201310718712.2A CN201310718712A CN103743544B CN 103743544 B CN103743544 B CN 103743544B CN 201310718712 A CN201310718712 A CN 201310718712A CN 103743544 B CN103743544 B CN 103743544B
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Abstract
The present invention proposes LED module and the hot matching detection method of light fixture, normally work under LED module is placed in varying temperature environment, when the working temperature of LED module set point reaches maximum allowable temperature T
ctime, measure LED module maximum permission operating ambient temperature T
amax; The thermodynamics with thermal power identical with LED module is placed in light fixture, successively multiple given ambient temperature T is applied to the outside of light fixture
w, and measure and multiple given ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a; By T
amaxwith multiple T
acompare one by one, as the operating ambient temperature T that light fixture provides for thermodynamics
abe less than or equal to LED module maximum permission operating ambient temperature T
amaxtime, then LED module and light fixture are at the operating ambient temperature T provided for thermodynamics with light fixture
acorresponding ambient temperature T
wunder can be with the use of; And then achieve adopting the LED illumination device of modularity design to carry out hot matching detection before assembly, comparatively simply, conveniently.
Description
Technical field
The present invention relates to technical field of semiconductor illumination, particularly relate to a kind of LED module and the hot matching detection method of light fixture.
Background technology
LED illumination device has been used in road lighting more and more.Manufacture LED illumination device for the ease of producing in enormous quantities, modularity design is an important development trend.Adopt the LED illumination device of modularity design primarily of LED module and light fixture composition, wherein LED module and light fixture can be produced by different manufacturers, and then carry out assembly and become LED illumination device.
When LED illumination device is assembled, whether to mate between LED module and light fixture, important indicator that compatible and each parts interchangeability is LED illumination device.Optics can be related to, machinery, electric and hot cooperation in the coupling of wherein LED module and light fixture.
Wherein, because the LED that LED module is installed needs could work normally at a certain temperature, its reliability just can ensure, so whether the heat radiation of LED module is well the key factor determining that can LED life-span and LED illumination device normally use.Therefore, the heat coupling between LED module and light fixture just seems particularly important.
At present, the usual star with reference to american energy of people and North America German Illuminating Engineeering Society assess LED module and lamp lumen maintenance life-span about the identification (IESLM-80-08) of LED light source lumen maintenance rate.Wherein, the LED illumination device lifetime estimation method mentioned in the star of american energy tests LED illumination device entirety, need to control the ambient temperature residing for light fixture, by the temperature of temperature test point on monitoring LED module and the change of the overall luminous flux of LED illumination device, thus the life-span of assessment LED module.
But the LED illumination device lifetime estimation method adopting the star of american energy to specify, needs to test (namely testing the LED module assembled and light fixture entirety) LED illumination device entirety.And when testing the LED illumination device adopting modularity to design, because LED module and light fixture are manufactured by different manufacturer, make before LED illumination device practical set uses, the ambient temperature of LED module and the light fixture assembled with it and the two work is all unforeseen; Therefore the method described in the star of american energy cannot be adopted to carry out hot matching detection before assembly to adopting the LED illumination device of modularity design.
Summary of the invention
For above-mentioned deficiency of the prior art, the object of the present invention is to provide a kind of LED module and the hot matching detection method of light fixture, it achieves adopting the LED illumination device of modularity design to carry out hot matching detection before assembly.
The present invention also aims to the assembly method providing a kind of LED module and light fixture, it achieves adopting the LED illumination device of modularity design to assemble when satisfied heat is mated.
A kind of LED module provided by the invention and the hot matching detection method of light fixture, comprise: LED module temperature measuring process, normally work under the LED module with given thermal power is placed in varying temperature environment, change the operating ambient temperature of LED module and measure the working temperature of set point on LED module, when the working temperature of set point reaches maximum allowable temperature T
ctime, measure LED module maximum permission operating ambient temperature T
amax;
Thermodynamics temperature measuring step, is placed in light fixture by the thermodynamics with given thermal power identical with LED module, applies multiple given ambient temperature T successively to the outside of light fixture
w, and measure and multiple given ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a;
By maximum for LED module permission operating ambient temperature T
amaxthe multiple operating ambient temperature T provided for thermodynamics with light fixture
acompare one by one, as the operating ambient temperature T that light fixture provides for thermodynamics
abe less than or equal to LED module maximum permission operating ambient temperature T
amaxtime, then LED module and light fixture are at the operating ambient temperature T provided for thermodynamics with light fixture
acorresponding ambient temperature T
wunder can be with the use of.
Optionally, described LED module temperature measuring process, is specially:
Normally work under LED module odd number group with identical given thermal power is placed side by side varying temperature environment, change the operating ambient temperature of LED module and measure the working temperature being positioned at set point on middle LED module, when the working temperature being positioned at the set point on middle LED module reaches maximum allowable temperature T
ctime, measure the LED module maximum permission operating ambient temperature T of the first specified location
amax.
Optionally,
First assigned address is specially:
When LED module is one group, the first assigned address is be arranged in the highest measurement point of the amount measurement point temperature at 1cm place above LED module with LED module dual-side at a distance of 1cm place on the symmetric reference line of LED module;
When LED module is more than three groups or three groups, the first assigned address is the centering reference line of two adjacent LED modules and the symmetric reference line intersection of LED module and is arranged in the highest measurement point of multiple the measurement point temperature at 1cm place above LED module.
Optionally, described varying temperature environment adopts the convection preventing wind chamber of controllable temperature to build.
Optionally, thermodynamics temperature measuring step, is specially:
The thermodynamics at least one group with given thermal power identical with LED module is placed in light fixture, applies multiple given ambient temperature T successively to the outside of light fixture
w, and measure the second specified location with multiple ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a.
Optionally, the second assigned address is specially:
When thermodynamics is one group, the second assigned address is be arranged in the highest measurement point of the two measurement point temperature at 1cm place above thermodynamics with thermodynamics dual-side at a distance of 1cm place on the symmetric reference line of thermodynamics;
When thermodynamics is two groups, two thermodynamics are placed side by side, and the second assigned address is the centering reference line of two thermodynamics and the symmetric reference line intersection of thermodynamics and is positioned at the measurement point at 1cm place above thermodynamics;
When thermodynamics is more than three groups, multiple thermodynamics is placed side by side, and the second assigned address is the centering reference line of two adjacent thermodynamics and the symmetric reference line intersection of thermodynamics and is arranged in the measurement point that above thermodynamics, multiple measurement point temperature at 1cm place are the highest.
Optionally, multiple given described ambient temperature T
wbe respectively 25 DEG C, 35 DEG C and 50 DEG C.
The assembly method of a kind of LED module provided by the invention and light fixture, comprise: normally work under the LED module with given thermal power is placed in varying temperature environment, change the operating ambient temperature of LED module and measure the working temperature of set point on LED module, when the working temperature of set point reaches maximum allowable temperature T
ctime, measure LED module maximum permission operating ambient temperature T
amax;
The thermodynamics with given thermal power identical with LED module is placed in light fixture, successively multiple given ambient temperature T is applied to the outside of light fixture
w, and measure and multiple given ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a;
By maximum for LED module permission operating ambient temperature T
amaxthe multiple operating ambient temperature T provided for thermodynamics with light fixture
acompare one by one, as the operating ambient temperature T that light fixture provides for thermodynamics
abe less than or equal to LED module maximum permission operating ambient temperature T
amaxtime, then LED module and light fixture are assembled, and indicate after mounting and the operating ambient temperature T that light fixture provides for thermodynamics
acorresponding ambient temperature T
w.
Optionally, the ambient temperature T indicated described in
wfor with LED module maximum permission operating ambient temperature T
amaxthe operating ambient temperature T that immediate light fixture provides for thermodynamics
acorresponding ambient temperature T
w.
Compared with prior art, LED module provided by the invention and the hot matching detection method of light fixture, it is by measuring LED module at maximum allowable temperature T
ctime maximum permission operating ambient temperature T
amax, and measurement has the thermodynamics of given thermal power identical with LED module at ambient temperature T
wunder, the operating ambient temperature T that light fixture provides for it
a, then by contrast LED module maximum permission operating ambient temperature T
amaxwith the operating ambient temperature T that light fixture provides for thermodynamics
a, thus judge whether LED module can mate use with between light fixture, and then achieve adopting the LED illumination device of modularity design to carry out hot matching detection before assembly, comparatively simply, conveniently.
In further technical scheme, by arranging the LED module of odd number group, then detecting and being positioned at middle LED module maximum permission operating ambient temperature T
amax, thus the LED module maximum permission operating ambient temperature T that guarantee is measured
amaxcomparatively accurate.
In further technical scheme, LED module maximum permission operating ambient temperature T
amaxthe position of measurement point and the operating ambient temperature T that provides for thermodynamics of light fixture
athe position of measurement point roughly the same, thus ensure LED module maximum permission operating ambient temperature T
amaxthe operating ambient temperature T provided for thermodynamics with light fixture
athe reliability of comparison.
Compared with prior art, the assembly method of LED module provided by the invention and light fixture, it is by measuring LED module at maximum allowable temperature T
ctime maximum permission operating ambient temperature T
amax, and measurement has the thermodynamics of given thermal power identical with LED module at ambient temperature T
wunder, the operating ambient temperature T that light fixture provides for it
a, then by contrast LED module maximum permission operating ambient temperature T
amaxwith the operating ambient temperature T that light fixture provides for thermodynamics
a, thus the LED module and light fixture that meet assembled condition are assembled, and indicate its external work environment temperature T allowed after mounting
w, thus to achieve adopting the LED illumination device that relates to of modularity to assemble when satisfied heat coupling, and then be convenient to the installation in later stage and the use of LED illumination device.
In further technical scheme, by indicating and LED module maximum permission operating ambient temperature T
amaxthe operating ambient temperature T that immediate light fixture provides for thermodynamics
acorresponding ambient temperature T
w, be more convenient to LED illumination device when the later stage installs and use, staff chooses according to ambient temperature.
Above-mentioned technical characteristic various applicable mode can combine or substituted by the technical characteristic of equivalence, as long as can reach object of the present invention.
Accompanying drawing explanation
Also with reference to accompanying drawing, the present invention is described in more detail based on the embodiment being only indefiniteness hereinafter.Wherein:
The schematic flow sheet of the LED module that Fig. 1 provides for the embodiment of the present invention one and the hot matching detection method of light fixture;
The structural representation of the device for the measurement of LED module temperature that Fig. 2 provides for the embodiment of the present invention one;
The structural representation for the thermometric device of thermodynamics that Fig. 3 provides for the embodiment of the present invention one;
The front view of a kind of device for the measurement of LED module temperature that Fig. 4 provides for the embodiment of the present invention two;
Fig. 5 is the vertical view for the device of LED module temperature measurement in Fig. 4;
The front view of the device that Fig. 6 measures for LED module temperature for the another kind that the embodiment of the present invention two provides;
Fig. 7 is the vertical view for the device of LED module temperature measurement in Fig. 6;
A kind of front view for the thermometric device of thermodynamics that Fig. 8 provides for the embodiment of the present invention two;
Fig. 9 is the vertical view for the thermometric device of thermodynamics in Fig. 8;
The another kind that Figure 10 provides for the embodiment of the present invention two is for the front view of the thermometric device of thermodynamics;
Figure 11 is the vertical view for the thermometric device of thermodynamics in Figure 10;
Another front view for the thermometric device of thermodynamics that Figure 12 provides for the embodiment of the present invention two;
Figure 13 is the vertical view for the thermometric device of thermodynamics in Figure 12.
Accompanying drawing illustrates:
1-LED module, 2-thermodynamics, 3-light fixture, the convection preventing wind chamber of 4-controllable temperature.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly; clear, complete description is carried out below by technical scheme of the present invention; based on the embodiment in the present invention; other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the present invention protects.
Embodiment one:
As shown in Figure 1 to Figure 3, the LED module provided in the present embodiment and the hot matching detection method of light fixture, comprising:
Step 101, i.e. LED module 1 temperature measuring step, normally work under the LED module 1 with given thermal power is placed in varying temperature environment, change the operating ambient temperature of LED module 1 and measure the working temperature of set point on LED module 1, when the working temperature of set point reaches maximum allowable temperature T
ctime, measure the maximum permission operating ambient temperature T of LED module 1
amax.
In this step, because LED module 1 is when normally working, its electric energy conversion is two parts energy, i.e. luminous energy and heat energy.So the electric power of LED module 1 (i.e. general power) is the luminous power of LED module 1 and the summation of thermal power, so will draw shown in formula (1):
Thermal power=electric power-luminous power (1)
Wherein, LED module 1 electric power and luminous power Dou Shi manufacturer given when LED module 1 dispatches from the factory, so the thermal power of LED module 1 calculates by formula (1).
In this step, when measuring the working temperature of set point on LED module 1, set point production firm when LED module 1 dispatches from the factory marks out.Concrete, set point should be LED module 1 when normally working, the point that on the heating radiator of LED module 1, temperature is the highest, and production firm marks the maximum temperature T having it to allow
c, this maximum temperature T
cshould ensure, when LED module 1 in normal operation, the temperature of set point is no more than maximum temperature T
ctime, the temperature of the LED chip on LED module 1 would not exceed its junction temperature that can bear, and namely LED chip can normally work, and the mission life of LED module 1 can be guaranteed.
In this step, normally work under LED module 1 is placed in varying temperature environment, be particularly placed on by LED module 1 in the convection preventing wind chamber 4 of controllable temperature, namely varying temperature environment is built by the convection preventing wind chamber 4 of controllable temperature.
Step 102, i.e. thermodynamics 2 temperature measuring step, be placed in light fixture 3 by the thermodynamics 2 with given thermal power identical with LED module 1, applies multiple given ambient temperature T successively to the outside of light fixture 3
w, and measure and multiple given ambient temperature T
wthe operating ambient temperature T that corresponding light fixture 3 provides for thermodynamics 2
a;
In this step, first when selection standard thermal source 2, should ensure that thermodynamics 2 is identical with the radiating of LED module 1, concrete thermodynamics 2 adopts the heat spreader structures identical with LED module 1, then the LED chip installed on a heat sink is replaced by resistance, it should be noted that thermodynamics 2 should have the thermal power identical with LED module 1, thus replace LED module 1 to coordinate with light fixture 3 by thermodynamics 2 and measure.
In this step, multiple given ambient temperature T
wcome given according to the ambient temperature that LED illumination device is common.Concrete; according to common ambient temperature, the ambient temperature chosen in the present embodiment is 25 DEG C, 35 DEG C and 50 DEG C, but needs the ambient temperature further illustrated to be not limited to this three concrete numerical value; also can be other temperature, but all should fall into protection scope of the present invention.
Step 103, by maximum for LED module 1 permission operating ambient temperature T
amaxthe multiple operating ambient temperature T provided for thermodynamics 2 with light fixture 3
acompare one by one, as the operating ambient temperature T that light fixture 3 provides for thermodynamics 2
abe less than or equal to LED module 1 maximum permission operating ambient temperature T
amaxtime, then LED module 1 and light fixture 3 are at the operating ambient temperature T provided for thermodynamics 2 with light fixture 3
acorresponding ambient temperature T
wunder can be with the use of.
In this step, by LED module 1 maximum permission operating ambient temperature T
amaxthe multiple operating ambient temperature T provided for thermodynamics 2 with light fixture 3
acarry out comparison one by one, as the operating ambient temperature T that light fixture 3 provides for thermodynamics 2
abe less than or equal to LED module 1 maximum permission operating ambient temperature T
amaxtime, then prove that LED module 1 and light fixture 3 are at the operating ambient temperature T provided for thermodynamics 2 with this light fixture 3
acorresponding ambient temperature T
wunder can be with the use of.
In order to verify the validity of LED module and the hot matching detection method of light fixture provided in the present embodiment, experimental study is carried out to an embody rule, shown in reference table one:
Table one
Wherein, the maximum allowable temperature T of maximum temperature point on the heating radiator of its production firm of the LED module mark chosen
cbe 80 DEG C, then LED module be placed in the convection preventing wind chamber of controllable temperature.Change the temperature in the convection preventing wind chamber of controllable temperature, and the temperature of maximum temperature point on the heating radiator measuring LED module, when arriving maximum allowable temperature 80 DEG C, record temperature (the i.e. LED module maximum permission operating ambient temperature T in the convection preventing wind chamber of now controllable temperature
amax) be 67.4 DEG C.
To be placed on having the thermodynamics with LED module with the identical thermal efficiency in light fixture and thermodynamics is normally worked, then applying to be respectively 25 DEG C, 35 DEG C and 50 DEG C of these three ambient temperature T to light fixture outside successively
w; Measure thermodynamics at ambient temperature T
wwhen being 25 DEG C, the operating ambient temperature T that light fixture provides for it
abe 43.4 DEG C, measure thermodynamics at ambient temperature T
wwhen being 35 DEG C, the operating ambient temperature T that light fixture provides for it
abe 50.26 DEG C, measure thermodynamics at ambient temperature T
wwhen being 50 DEG C, the operating ambient temperature T that light fixture provides for it
ait is 69.3 DEG C.
Then pass through T
awith T
amaxcompare, the conclusion that can draw is: only have as ambient temperature T
wbe 25 DEG C and 35 DEG C time, LED module and light fixture can be with the use of; And as ambient temperature T
wwhen being 50 DEG C, then LED module and light fixture can not be with the use of.
It should be noted that further, its ambient temperature T
wbe not limited to this three definite values, also can choose other temperature value according to actual user demand, but all should fall into protection scope of the present invention.
In the present embodiment, LED module can be substituted in order to validation criteria thermal source and light fixture carries out temperature detection, in the present embodiment, following experimental study carried out to thermodynamics and LED module.
Experiment one,
Select luminous flux at 3000lm, the LED module of general power (i.e. electric power) between 21W ~ 40W, concrete, choose the LED module that general power is 30W.
Choose the thermodynamics (because mark thermal source can be considered, electric energy is all converted into heat energy, therefore the thermal power of thermodynamics is substantially equal to the electric power of himself) that thermal power is respectively 30W and 22.2W simultaneously.
The thermodynamics of the LED module of 30W, the thermodynamics of 30W and 22.2W is placed on respectively in the chamber of a simulation light fixture, is then respectively its power supply with constant current source, thus makes it all can normally work.
In chamber, gather the temperature value fixing 4 points with temperature polling instrument respectively, thus obtain table two:
Table two
Can be found out by table two, thermal power is the thermodynamics of 22.2W, the mean value of the operating ambient temperature that the chamber of simulating light fixture provides for it, with the LED module of 30W, the mean value of the operating ambient temperature that the chamber of simulating light fixture provides for it is the most close.
Meanwhile, be the LED module of 30W for electric power, its luminous power is 7.76W, therefore can calculate according to formula (1), and electric power is its thermal power of LED module of 30W is 22.24W.Basic identical with the thermal power of the thermodynamics of 22.2W.
A provable thermodynamics with identical thermal power can the real LED module of simulate by experiment.
In the present embodiment, in order to the choosing of thermal power numerical value of validation criteria thermal source, in the present embodiment, following experimental study is carried out to thermodynamics and LED module.
Experiment two,
Select luminous flux at 3000lm, the LED module of general power (i.e. electric power) between 21W ~ 40W, concrete, choose the LED module that general power is respectively the LED module of 21W, the LED module of 30W and 40W.
Choose the thermodynamics (because mark thermal source can be considered, electric energy is all converted into heat energy, therefore the thermal power of thermodynamics is substantially equal to the electric power of himself) that thermal power is 34W simultaneously.
The thermodynamics of the LED module of the LED module of 4 21W, 4 30W, the LED module of 4 40W and 4 34W is placed in a light fixture respectively, is then respectively its power supply with constant current source, thus makes it all can normally work.
In light fixture, gather the temperature value fixing 5 points with temperature polling instrument respectively, thus obtain table three:
Table three
Can be found out by table three, thermal power is that the mxm. of the operating ambient temperature of the mxm. of its operating ambient temperature of thermodynamics of 34W and the LED module of 40W is the most close.
Meanwhile, be the LED module of 40W for electric power, its minimum luminous power is 8W, therefore can calculate according to formula (1), and electric power is its thermal power of LED module of 40W is 32W.The thermodynamics of its thermal power and 34W is more or less the same.
Two can draw a conclusion by experiment, when the thermal power of selection standard thermal source, the electric power by LED module deducts its minimum luminous power produced, thus determines the thermal power of selection standard thermal source.
In the present embodiment, need to further illustrate, step 101 and step 102 are only the restriction to step, but do not have time sequencing, and further step 101 and step 102 in no particular order sequentially, also can be carried out on carrying out simultaneously.
Embodiment two:
As shown in Fig. 4 to Figure 13, the LED module provided in the present embodiment and the hot matching detection method of light fixture, its general steps is identical or similar with embodiment one, does not repeat them here, is only described with difference below.
Because its concrete electric power of LED module 1 and the thermal efficiency exist certain individual difference, therefore in order to ensure the LED module 1 maximum permission operating ambient temperature T measured
amaxcomparatively accurate, the step 101 in embodiment one is specially:
Step 201, the LED module 1 odd number group with identical given thermal power normally work under being placed side by side varying temperature environment, change the operating ambient temperature of LED module 1 and measure the working temperature being positioned at set point on middle LED module 1, when the working temperature being positioned at the set point on middle LED module 1 reaches maximum allowable temperature T
ctime, measure the LED module 1 maximum permission operating ambient temperature T of the first specified location
amax.
In this step, the quantity of LED module 1 can be one, three or more, concrete magnitude setting is unique, can need to change according to reality test.
In this step, when the quantity that LED module 1 is arranged is one, first assigned address is be arranged in the highest measurement point of the amount measurement point temperature at 1cm place above LED module 1 with LED module 1 dual-side at a distance of 1cm place on the symmetric reference line of LED module 1, specifically can with reference to figure 4 and Fig. 5.
Wherein, the symmetric reference line of LED module 1 should be the symmetrical center line of LED module 1, and namely the two ends of LED module 1 are along symmetric reference line specular.
During actual measurement, all should measure facing to two measurement points, the measurement point that temperature is the highest is the first assigned address.
When the quantity of LED module 1 is more than three or three, first assigned address is the centering reference line of two adjacent LED modules 1 and the symmetric reference line intersection of LED module 1 and is arranged in the measurement point that above LED module 1, multiple measurement point temperature at 1cm place are the highest, specifically can with reference to (program is the quantity of LED module 1 is three) shown in figure 6 and Fig. 7.
Wherein, the centering reference line of LED module 1 should be the center line between two adjacent LED modules 1, and two namely adjacent LED modules 1 are arranged along centering reference line symmetria bilateralis; The symmetric reference line of LED module 1 should be the symmetrical center line of LED module 1, and namely the two ends of LED module 1 are along symmetric reference line specular.
During actual measurement, all should measure facing to multiple measurement point, the measurement point that temperature is the highest is the first assigned address, and records the LED module 1 maximum permission operating ambient temperature T of the first specified location
amax.
Meanwhile, in order to ensure LED module 1 maximum permission operating ambient temperature T
amaxthe position of measurement point and the operating ambient temperature T that provides for thermodynamics 2 of light fixture
athe position of measurement point roughly the same, thus ensure the maximum permission operating ambient temperature T of LED module 1
amaxthe operating ambient temperature T provided for thermodynamics 2 with light fixture 3
athe reliability of comparison.Step 102 in embodiment one is specially:
The thermodynamics 2 at least one group with given thermal power identical with LED module 1 is placed in light fixture 3, applies multiple given ambient temperature T successively to the outside of light fixture 3
w, and measure the second specified location with multiple ambient temperature T
wthe operating ambient temperature T that corresponding light fixture 3 provides for thermodynamics 2
a.
Concrete, when the second assigned address is chosen, need select according to the quantity of the thermodynamics 2 placed, concrete:
When thermodynamics 2 is one group, the second assigned address is be arranged in the highest measurement point of the two measurement point temperature at 1cm place above thermodynamics 2, shown in reference Fig. 8 and Fig. 9 with thermodynamics 2 dual-side at a distance of 1cm place on the symmetric reference line of thermodynamics 2.
Wherein, the symmetric reference line of thermodynamics 2 should be the symmetrical center line of thermodynamics 2, and namely the two ends of thermodynamics 2 are along symmetric reference line specular.
During actual measurement, all should measure facing to two measurement points, the measurement point that temperature is the highest is the second assigned address.
When thermodynamics 2 is two groups, two thermodynamics 2 are placed side by side, second assigned address is the centering reference line of two thermodynamics 2 and the symmetric reference line intersection of thermodynamics 2 and is positioned at the measurement point at 1cm place above thermodynamics 2, with reference to shown in Figure 10 and Figure 11.
Wherein, the centering reference line of thermodynamics 2 should be the center line between two thermodynamics 2, and namely two thermodynamics 2 are arranged along centering reference line symmetria bilateralis; The symmetric reference line of thermodynamics 2 should be the symmetrical center line of thermodynamics 2, and namely the two ends of thermodynamics 2 are along symmetric reference line specular.
When thermodynamics 2 is more than three groups, multiple thermodynamics 2 is placed side by side, second assigned address is the centering reference line of two adjacent thermodynamics 2 and the symmetric reference line intersection of thermodynamics 2 and is arranged in the measurement point that above thermodynamics 2, multiple measurement point temperature at 1cm place are the highest, with reference to shown in Figure 12 and Figure 13.
Wherein, the centering reference line of thermodynamics 2 should be the center line between two adjacent thermodynamics 2, and two namely adjacent thermodynamics 2 are arranged along centering reference line symmetria bilateralis; The symmetric reference line of thermodynamics 2 should be the symmetrical center line of thermodynamics 2, and namely the two ends of thermodynamics 2 are along symmetric reference line specular.
During actual measurement, all should measure facing to multiple measurement point, the measurement point that temperature is the highest is the second assigned address.
It should be noted that, the quantity of the LED module 1 that the quantity that thermodynamics 2 is arranged in light fixture 3 can should be arranged with this light fixture 3 is equal, and namely the quantity such as LED module 1 are replaced by thermodynamics 2 in light fixture 3.
Embodiment three:
A kind of LED module provided in the present embodiment and the assembly method of light fixture, comprising:
Normally work under the LED module with given thermal power is placed in varying temperature environment, change the operating ambient temperature of LED module and measure the working temperature of set point on LED module, when the working temperature of set point reaches maximum allowable temperature T
ctime, measure LED module maximum permission operating ambient temperature T
amax;
The thermodynamics with given thermal power identical with LED module is placed in light fixture, successively multiple given ambient temperature T is applied to the outside of light fixture
w, and measure and multiple given ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a;
By maximum for LED module permission operating ambient temperature T
amaxthe multiple operating ambient temperature T provided for thermodynamics with light fixture
acompare one by one, as the operating ambient temperature T that light fixture provides for thermodynamics
abe less than or equal to LED module maximum permission operating ambient temperature T
amaxtime, then LED module and light fixture are assembled, and indicate after mounting and the operating ambient temperature T that light fixture provides for thermodynamics
acorresponding ambient temperature T
w.
It is by measuring LED module at maximum allowable temperature T
ctime maximum permission operating ambient temperature T
amax, and measurement has the thermodynamics of given thermal power identical with LED module at ambient temperature T
wunder, light fixture for its provide operating ambient temperature T
a, then by contrast LED module maximum permission operating ambient temperature T
amaxwith the operating ambient temperature T that light fixture provides for thermodynamics
a, thus the LED module and light fixture that meet assembled condition are assembled, and indicate its external work environment temperature T allowed after mounting
w, thus to achieve adopting the LED illumination device that relates to of modularity to assemble when satisfied heat coupling, and then be convenient to the installation in later stage and the use of LED illumination device.
In the present embodiment, the ambient temperature T indicated
wfor with LED module maximum permission operating ambient temperature T
amaxthe operating ambient temperature T that immediate light fixture provides for thermodynamics
acorresponding ambient temperature T
w.More be convenient to LED illumination device when the later stage installs and use, staff chooses according to ambient temperature.
It is to be appreciated that be less than immediate thermodynamics operating ambient temperature T
acorresponding ambient temperature T
wother ambient temperature, all should think and LED module and light fixture can be carried out assembling and installing and using.
Last it is noted that above embodiment and embodiment are only in order to illustrate technical scheme of the present invention, be not intended to limit; Although reference aforementioned embodiments and embodiment are to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in aforementioned embodiments or embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention or embodiment technical scheme.
Claims (9)
1. LED module and the hot matching detection method of light fixture, comprising:
LED module temperature measuring process, normally work under the LED module with given thermal power is placed in varying temperature environment, change the operating ambient temperature of LED module and measure the working temperature of set point on LED module, when the working temperature of set point reaches maximum allowable temperature T
ctime, measure LED module maximum permission operating ambient temperature T
amax;
Thermodynamics temperature measuring step, is placed in light fixture by the thermodynamics with given thermal power identical with LED module, applies multiple given ambient temperature T successively to the outside of light fixture
w, and measure and multiple given ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a;
By maximum for LED module permission operating ambient temperature T
amaxthe multiple operating ambient temperature T provided for thermodynamics with light fixture
acompare one by one, as the operating ambient temperature T that light fixture provides for thermodynamics
abe less than or equal to LED module maximum permission operating ambient temperature T
amaxtime, then LED module and light fixture are at the operating ambient temperature T provided for thermodynamics with light fixture
acorresponding ambient temperature T
wunder can be with the use of.
2. LED module according to claim 1 and the hot matching detection method of light fixture, is characterized in that, described LED module temperature measuring process, is specially:
Normally work under LED module odd number group with identical given thermal power is placed side by side varying temperature environment, change the operating ambient temperature of LED module and measure the working temperature being positioned at set point on middle LED module, when the working temperature being positioned at the set point on middle LED module reaches maximum allowable temperature T
ctime, measure the LED module maximum permission operating ambient temperature T of the first specified location
amax.
3. LED module according to claim 2 and the hot matching detection method of light fixture, it is characterized in that, the first assigned address is specially:
When LED module is one group, the first assigned address is be arranged in the highest measurement point of the measurement point temperature at 1cm place above LED module with LED module dual-side at a distance of 1cm place on the symmetric reference line of LED module;
When LED module is more than three groups or three groups, the first assigned address is the centering reference line of two adjacent LED modules and the symmetric reference line intersection of LED module and is arranged in the measurement point that above LED module, multiple measurement point temperature at 1cm place are the highest.
4. the LED module according to any one of Claim 1-3 and the hot matching detection method of light fixture, is characterized in that, described varying temperature environment adopts the convection preventing wind chamber of controllable temperature to build.
5. the LED module according to any one of Claim 1-3 and the hot matching detection method of light fixture, it is characterized in that, thermodynamics temperature measuring step, is specially:
The thermodynamics at least one group with given thermal power identical with LED module is placed in light fixture, applies multiple given ambient temperature T successively to the outside of light fixture
w, and measure the second specified location with multiple ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a.
6. LED module according to claim 5 and the hot matching detection method of light fixture, it is characterized in that, the second assigned address is specially:
When thermodynamics is one group, the second assigned address is be arranged in the highest measurement point of the two measurement point temperature at 1cm place above thermodynamics with thermodynamics dual-side at a distance of 1cm place on the symmetric reference line of thermodynamics;
When thermodynamics is two groups, two thermodynamics are placed side by side, and the second assigned address is the centering reference line of two thermodynamics and the symmetric reference line intersection of thermodynamics and is positioned at the measurement point at 1cm place above thermodynamics;
When thermodynamics is more than three groups, multiple thermodynamics is placed side by side, and the second assigned address is the centering reference line of two adjacent thermodynamics and the symmetric reference line intersection of thermodynamics and is arranged in the measurement point that above thermodynamics, multiple measurement point temperature at 1cm place are the highest.
7. LED module according to claim 1 and the hot matching detection method of light fixture, is characterized in that, multiple given described ambient temperature T
wbe respectively 25 DEG C, 35 DEG C and 50 DEG C.
8. an assembly method for LED module and light fixture, comprising:
Normally work under the LED module with given thermal power is placed in varying temperature environment, change the operating ambient temperature of LED module and measure the working temperature of set point on LED module, when the working temperature of set point reaches maximum allowable temperature T
ctime, measure LED module maximum permission operating ambient temperature T
amax;
The thermodynamics with given thermal power identical with LED module is placed in light fixture, successively multiple given ambient temperature T is applied to the outside of light fixture
w, and measure and multiple given ambient temperature T
wthe operating ambient temperature T that corresponding light fixture provides for thermodynamics
a;
By maximum for LED module permission operating ambient temperature T
amaxthe multiple operating ambient temperature T provided for thermodynamics with light fixture
acompare one by one, as the operating ambient temperature T that light fixture provides for thermodynamics
abe less than or equal to LED module maximum permission operating ambient temperature T
amaxtime, then LED module and light fixture are assembled, and indicate after mounting and the operating ambient temperature T that light fixture provides for thermodynamics
acorresponding ambient temperature T
w.
9. the assembly method of LED module according to claim 8 and light fixture, is characterized in that, the ambient temperature T indicated
wfor with LED module maximum permission operating ambient temperature T
amaxthe operating ambient temperature T that immediate light fixture provides for thermodynamics
acorresponding ambient temperature T
w.
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