CN206803073U - A kind of temperature detection structure of UVLED light sources - Google Patents
A kind of temperature detection structure of UVLED light sources Download PDFInfo
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- CN206803073U CN206803073U CN201720670996.6U CN201720670996U CN206803073U CN 206803073 U CN206803073 U CN 206803073U CN 201720670996 U CN201720670996 U CN 201720670996U CN 206803073 U CN206803073 U CN 206803073U
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- ntc thermistor
- uvled
- light sources
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- temperature detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a kind of temperature detection structure of UVLED light sources.The temperature detection structure of the UVLED light sources includes metal heat sink, the COB ceramic substrates being fixed at least one surface of the metal heat sink, the UVLED array of source being integrated on the COB ceramic substrates, the radiating component set along the length direction of UVLED array of source, and it is from upstream to the first NTC thermistor that downstream sets gradually along heat dissipation direction, second NTC thermistor and the 3rd NTC thermistor, wherein, first NTC thermistor is arranged on the upstream end of UVLED array of source, 3rd NTC thermistor is arranged on the downstream of UVLED array of source, second NTC thermistor is arranged between the first NTC thermistor and the 3rd NTC thermistor.According to the temperature detection structure of UVLED light sources of the present utility model, UVLED light source chip damages are easily found, ensures that luminous intensity is uniformly constant, ensures product quality.
Description
Technical field
The utility model belongs to the UVLED light-source temperature detection fields of bar shaped, and in particular to a kind of temperature of UVLED light sources
Detect structure.
Background technology
UVLED is UV LED, is LED one kind, and wave-length coverage is：10-500nm.For example, manufactured in PCB
In, it is necessary to be exposed or solidify to PCB surface using UVLED light sources etc., to carry out pattern transfer.For example, for being coated with
Film or as insulating barrier colored ink PCB surface, it is necessary to it is exposed so that ink setting solidify.Generally,
COB (chip On board) ceramic substrate of UV LED chip is set to be fixed on metal heat sink, metal heat sink passes through water
Cold and air-cooled mode goes out heat Quick diffusing, rises so as to suppress the temperature of luminescence unit.Specific water-cooling project can be with
With reference to the earlier application CN201620348035 and CN201620281631 of the applicant, the first patent document of the two pieces passes through complete
The mode that text is quoted is hereby incorporated by.UVLED array of source can produce substantial amounts of heat in the course of the work, in order to prevent that heat is excessive
Cause the luminescence unit of light source, such as the temperature of UVLED array of source is too high, it is necessary to take measures to enter trip temperature to luminescence unit
Detection.
Utility model content
The purpose of this utility model is, there is provided a kind of temperature detection structure of UVLED light sources, uniform coating thickness, and
It is more efficient.
The utility model is achieved through the following technical solutions：A kind of temperature detection structure of UVLED light sources, the UVLED light
The temperature detection structure in source includes metal heat sink, the COB ceramics being fixed at least one surface of the metal heat sink
Substrate, the UVLED array of source being integrated on the COB ceramic substrates, dissipated along what the length direction of UVLED array of source was set
Hot component, and along heat dissipation direction be from upstream to the first NTC thermistor, the second NTC thermistor that downstream sets gradually and
3rd NTC thermistor, wherein, the first NTC thermistor is arranged on the upstream end of UVLED array of source, the 3rd NTC temperature-sensitives electricity
Resistance is arranged on the downstream of UVLED array of source, and the second NTC thermistor is arranged on the first NTC thermistor and the 3rd NTC heat
Between quick resistance.
As the further improvement of above-mentioned technical proposal, the radiating component is the cold radiating of air-cooled radiating component or liquid
Component.
As the further improvement of above-mentioned technical proposal, the radiating component is the radiating component of water cooling.
As the further improvement of above-mentioned technical proposal, gone back between the first NTC thermistor and the 3rd NTC thermistor
It is provided with the 4th NTC thermistor.
As the further improvement of above-mentioned technical proposal, the first NTC thermistor, the second NTC thermistor, the 3rd NTC
Thermistor and the 4th NTC thermistor are arranged on the underface of UVLED array of source.
The beneficial effects of the utility model：According to the temperature detection structure of the UVLED light sources of one embodiment, according to detection
Temperature curve and normal temperature curve deviation size and location, judge abnormal UVLED light source chips and position, easily find
UVLED light source chip damages, ensure that luminous intensity is uniformly constant, ensure product quality.
Brief description of the drawings
Fig. 1 is the floor map of the temperature detection structure of the UVLED light sources of first embodiment of the present utility model；
Fig. 2 is the floor map of the temperature detection structure of the UVLED light sources of second embodiment of the present utility model；
Fig. 3 is to show that the COB ceramic substrates for setting UVLED array of source are fixed on an inclined-plane of metal heat sink
Figure.
Embodiment
Below in conjunction with accompanying drawing in embodiment of the present utility model, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.The component of the utility model embodiment being generally described and illustrated herein in the accompanying drawings can be with a variety of configurations
To arrange and design.Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit below
The claimed the scope of the utility model of system, but it is merely representative of selected embodiment of the present utility model.It is new based on this practicality
The embodiment of type, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made,
Belong to the scope of the utility model protection.
First embodiment
First, the temperature detection structure for the UVLED light sources that reference picture 1, Fig. 3 are related to first embodiment of the present utility model
Illustrate.
As shown in Figure 1, Figure 3, it is shown that the temperature detection structure 100A of the UVLED light sources of the present embodiment.UVLED light source battle arrays
Row 40 are for example made up of M row N row chips, and M is, for example, 5-10, N 40-100.
Wherein, the temperature detection structure 100A of the UVLED light sources includes metal heat sink 20, is fixed on the heat dissipation metal
COB ceramic substrates 10 on two inclined-planes of device 20, the UVLED array of source 40 being integrated on the COB ceramic substrates 10, edge
The radiating component that the length direction of UVLED array of source 40 is set, and it is from upstream to what downstream was set gradually along heat dissipation direction
First NTC thermistor 32, the second NTC thermistor 33 and the 3rd NTC thermistor 34, wherein, the first NTC thermistor 32
The upstream end of UVLED array of source 40 is arranged on, the 3rd NTC thermistor 34 is arranged on the downstream of UVLED array of source 40,
Second NTC thermistor 33 is arranged between the first NTC thermistor 32 and the 3rd NTC thermistor 34.
In the present embodiment, the first NTC thermistor 32, the second NTC thermistor 33 and the 3rd NTC thermistor 34 are set
Put in the underface of UVLED array of source 40.The distance between first NTC thermistor 32 and the second NTC thermistor 33 L0
For the distance between the first NTC thermistor 32 and the 3rd NTC thermistor 34 Lmax half.
Wherein, the radiating component is the cold radiating component of air-cooled radiating component or liquid.In the present embodiment, it is described to dissipate
Hot component is the radiating component of water cooling.
The temperature regime of UVLED light sources is great to UVLED light source lifes and performance impact.If in each UVLED light sources
Each LED chip by lay (NTC thermistor) test point detection temperature, then because test point is more, the temperature of use
It is more to spend detecting element quantity, adds product cost, and form product reliability hidden danger.
It by the optimum choice of temperature detecting point, can be layouted with minimum, obtain the temperature curve of UVLED light sources and obtain
The data of the regulation temperature difference are taken, greatly reduce the quantity of detector unit, improve the reliability of product, and reduce element cost
And processing cost.
According to light source design and experiment test, thermal self-restraint stress, the minimum point of the UVLED light sources of bar shaped are determined, and according to
The feature of temperature curve determines test point, including thermal self-restraint stress, minimum point, the quantity of intermediate detection point and position.Root
Temperature distribution history is drawn according to test point.
The maximum temperature point and minimum temperature point of the UVLED light sources of bar shaped are typically distributed on the both ends of light source, temperature curve
It is approximately linear distribution.
In the present embodiment, the 3rd NTC thermistor 34 is peak temperature, and peak temperature is Tmax, and the first NTC is warm
Quick resistance 32 is minimum point temperature, minimum point temperature Tmin, then the maximum temperature difference at light source both ends is：
Δ Tmax=Tmax-Tmin
According to design requirement, it is necessary to which the maximum temperature difference scope of detection is：ΔTc
The detection then needed quantity of layouting is：
N=Δ Tmax/ Δs Tc (round numbers)
Minimum temperature point Tmin position Lmin, maximum temperature point Tmax position Lmax, then the interval location layouted from
Δ L is：
Δ L=(Lmax-Lmin)/n
Specific position of layouting is：
L1=Lmin+ Δs L
L2=Lmin+2* Δs L
…
Ln=Lmin+n* Δs L
The rest may be inferred.
Second embodiment
Then, reference picture 3, the temperature detection structure for the UVLED light sources being related to second embodiment of the present utility model enter
Row explanation.In addition, unless stated otherwise, the composition of the temperature detection structure for the UVLED light sources that second embodiment is related to, with first
The composition that reference picture 1 illustrates in embodiment is identical.Hereinafter, the temperature detection for the UVLED light sources being mainly related to second embodiment
The composition part different from first embodiment illustrates in the composition of structure, pair UVLED light sources being related to first embodiment
Temperature detection structure identical structure carry out schematic illustration.
It is different from first embodiment, in second embodiment, in the present embodiment, except the second NTC thermistor 35,
The 4th NTC thermistor 37 is additionally provided between first NTC thermistor 32 and the 3rd NTC thermistor 34.In the present embodiment
In, the first NTC thermistor 32, the second NTC thermistor 35, the 3rd NTC thermistor 34 and the 4th NTC thermistor 37 are set
Put in the underface of UVLED array of source 40.The distance between first NTC thermistor 32 and the second NTC thermistor 35 L1
For 1/3rd of the distance between the first NTC thermistor 32 and the 3rd NTC thermistor 34 Lmax.First NTC temperature-sensitives electricity
The distance between the NTC thermistor 37 of resistance 32 and the 4th L2 is between the first NTC thermistor 32 and the 3rd NTC thermistor 34
Distance Lmax 2/3rds.
In description of the present utility model, in addition, term " first ", " second " are only used for describing purpose, without being understood that
To indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
One or more feature can be expressed or be implicitly included to the feature of " second ".In embodiment party of the present utility model
In the description of formula, " multiple " are meant that two or more, unless otherwise specifically defined.
In embodiment of the present utility model, unless otherwise clearly defined and limited, fisrt feature is in second feature
It " on " or it " under " can directly be contacted including the first and second features, it is not direct that can also include the first and second features
Contact but pass through the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and
The fisrt feature " above " that includes is directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second
Feature.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature directly over second feature and tiltedly
Top, or be merely representative of fisrt feature level height and be less than second feature.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of preferred embodiment of the present utility model includes other realization, wherein can not press shown or discuss
Order, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be by this
The embodiment person of ordinary skill in the field of utility model is understood.
In description of the present utility model, it is to be understood that term " first ", " second " etc. are only used for describing purpose,
And it is not intended that instruction or hint relative importance.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.In addition, in description of the present utility model, it is unless otherwise indicated, " more
It is individual " it is meant that two or more.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (5)
1. a kind of temperature detection structure of UVLED light sources, it is characterised in that the temperature detection structure of the UVLED light sources includes gold
Belong to radiator, the COB ceramic substrates being fixed at least one surface of the metal heat sink, be integrated in the COB ceramics
UVLED array of source on substrate, the radiating component set along the length direction of UVLED array of source, and along heat dissipation direction
The first NTC thermistor, the second NTC thermistor and the 3rd NTC thermistor that downstream is set gradually are from upstream to, wherein,
First NTC thermistor is arranged on the upstream end of UVLED array of source, and the 3rd NTC thermistor is arranged on UVLED array of source
Downstream, the second NTC thermistor is arranged between the first NTC thermistor and the 3rd NTC thermistor.
2. the temperature detection structure of UVLED light sources according to claim 1, it is characterised in that the radiating component is wind
The cold radiating component of cold radiating component or liquid.
3. the temperature detection structure of UVLED light sources according to claim 2, it is characterised in that the radiating component is water
Cold radiating component.
4. the temperature detection structure of UVLED light sources according to claim 3, it is characterised in that in the first NTC thermistor
The 4th NTC thermistor is additionally provided between the 3rd NTC thermistor.
5. the temperature detection structure of UVLED light sources according to claim 4, it is characterised in that the first NTC thermistor,
Second NTC thermistor, the 3rd NTC thermistor and the 4th NTC thermistor are arranged on the underface of UVLED array of source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720670996.6U CN206803073U (en) | 2017-06-11 | 2017-06-11 | A kind of temperature detection structure of UVLED light sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720670996.6U CN206803073U (en) | 2017-06-11 | 2017-06-11 | A kind of temperature detection structure of UVLED light sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206803073U true CN206803073U (en) | 2017-12-26 |
Family
ID=60745974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720670996.6U Expired - Fee Related CN206803073U (en) | 2017-06-11 | 2017-06-11 | A kind of temperature detection structure of UVLED light sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206803073U (en) |
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2017
- 2017-06-11 CN CN201720670996.6U patent/CN206803073U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |