CN202494938U - LED casing temperature control device for LED aging test - Google Patents
LED casing temperature control device for LED aging test Download PDFInfo
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- CN202494938U CN202494938U CN 201220078558 CN201220078558U CN202494938U CN 202494938 U CN202494938 U CN 202494938U CN 201220078558 CN201220078558 CN 201220078558 CN 201220078558 U CN201220078558 U CN 201220078558U CN 202494938 U CN202494938 U CN 202494938U
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- temperature control
- control device
- refrigeration
- mounting disc
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Abstract
The utility model discloses an LED casing temperature control device for an LED aging test. A refrigerator of the LED casing temperature control device comprises a radiator, an electric refrigeration plate and a mounting disk, wherein both the electric refrigeration plate and the mounting disk are fixedly mounted on the radiator, so that the electric refrigeration plate is embedded in an opening of the mounting disk. A refrigeration box of the LED casing temperature control device is provided with a mounting hole site, and the refrigerator is fixedly mounted on the mounting hole site, so that the radiator is placed in the refrigeration box and an electric refrigeration plate surface used for mounting an LED aluminum substrate is placed outside the refrigeration box. The LED casing temperature control device of the utility model is especially suitable for the aging test of a large power LED. The LED casing temperature control device first carries out refrigeration through the refrigerator, and if the thermal load increases, then the LED casing temperature control device starts the refrigeration box to carry out refrigeration on the radiator, to realize secondary refrigeration on the LED. In addition, the refrigeration box also provides a stable external temperature environment for the refrigerator, reduces the temperature control fluctuation of the refrigerator, can not only realize more accurate temperature control but also decrease the temperature adjusting frequency, and extends the service life of the refrigerator.
Description
Technical field
The utility model relates to a kind of LED shell temperature control device that is used for when carrying out the LED burn-in test control LED shell temperature, particularly a kind of control device that the shell temperature of plurality of LEDs is controlled unified.
Background technology
After single LEDs is produced, need do an assessment to its life-span.Relatively more current at present way is: in a collection of LED of same model; Extract certain LED sample; And aging thousands of hours (being not less than 6000 hours usually), the photochromic electrical quantity of each LEDs of elder generation's test before aging, and every interval certain hour is measured its photochromic electrical quantity in ageing process; Digestion time is long more, and the decay of LED light output is big more, preserve each result who measures, and the light output attenuatoin amount of LED after going out to wear out according to certain algorithm computation, thereby the LED life-span of extrapolating this model.
When carrying out burn-in test; Usually adopt thermopair to gather the shell temperature of every LEDs and the temperature of LED aluminium base; Like this; The control module of aging monitoring system just can according to the temperature that thermopair collects utilize LED shell temperature control device with LED shell temperature basic controlling on a fixed temperature, only allow it in the upper and lower limit scope of this fixed temperature, (to be generally ± 1～2 ℃) fluctuation.Basically all be to realize temperature control at present through once freezing; This kind temperature control method can only be realized the temperature control of low-power LED; Can't realize accurate temperature controlling and exist, slow or the problem that at all can't temperature control of thermal velocity for the integrated of great power LED, many low-power LEDs or to the exigent situation of LED environment temperature; Even realized temperature control, because the refrigerator long-term work is at full capacity or under the overload state, also can shorten rapidly its serviceable life.
The utility model content
The purpose of the utility model is to provide a kind of LED shell temperature control device with higher temperature-controlled precision, big heat load power.
The technical scheme that the utility model adopts is: a kind of burn-in test is with LED shell temperature control device; Comprise refrigerator and refrigeration case; Said refrigerator comprises heating radiator, electric cold plate and mounting disc, and said electric cold plate and mounting disc all are fixedly installed on the heating radiator, and the middle part of said mounting disc has opening; Electric cold plate is embedded in the said opening, and makes heating radiator be positioned at bottom surface one side towards mounting disc;
The tank wall of said refrigeration case is provided with at least one mounting hole site that runs through said tank wall; Said refrigerator is fixedly installed on the said mounting hole site through its mounting disc; Make said heating radiator place refrigeration case, and the surface that said opening exposes of passing through that is used to the LED aluminium base is installed of electric cold plate is placed outside the refrigeration case.
Wherein, the surfaces coated that is used to the LED aluminium base is installed of said electric cold plate is covered with the heat-conducting silicone grease layer.
Wherein, has hand-held handle on the bottom surface of said mounting disc.
Wherein, be provided with second sealing gasket between the tank wall that mounting hole site is set of said mounting disc and refrigeration case, to guarantee the impermeability of refrigeration case.
Wherein, be provided with first sealing gasket of arranging around electric cold plate between said mounting disc and the heating radiator.
Wherein, the profile of said electric cold plate and the opening of mounting disc have the appearance profile that is complementary, and electric cold plate is embedded in the said opening just.
Wherein, Said mounting disc is provided with the cable-through hole that runs through its end face and bottom surface; To guarantee to make when the burn-in test heating radiator to place in the refrigeration case and make and be close to the LED aluminium base that is installed on the electric cold plate and place in the hot case, the wiring solder joint extension line on the LED aluminium base can lead on the connecting terminal block that is arranged in the refrigeration case through cable-through hole easily.
Wherein, Said refrigeration case comprises operating room and refrigeration pulpit; Said mounting hole site is arranged on the tank wall of operating room, and the refrigeration system of refrigeration case is installed in the refrigeration pulpit, and the dividing plate between said operating room and refrigeration pulpit is provided with air outlet and return air inlet.
The beneficial effect of the utility model is: for the LED shell temperature control device of the utility model, when carrying out the burn-in test of low-power LED, can only accomplish controlled target through refrigerator usually; And when carrying out the burn-in test of great power LED, just can heating radiator be freezed, thereby realize secondary refrigeration to LED through refrigeration case; Like this; Both can reach the temperature control target effectively, can increase the refrigeration work consumption of refrigerator again, prolong its serviceable life; And the refrigeration case of the utility model can provide a metastable ambient temperature to heating radiator, thereby makes the temperature wave momentum of refrigerator little, realizes higher temperature-controlled precision and degree of stability.
In addition, the refrigerator that is used to install the aluminium base (hereinafter to be referred as the LED aluminium base) that is welded with plurality of LEDs of the LED shell temperature control device of the utility model also has easy accessibility, can in disassembly process, not damage the advantage of LED; Be embodied in: accomplish when aging, in the time of need carrying out photochromic electrical measurement, a refrigerator that only needs the LED aluminium base will be installed takes apart in refrigeration case; Being transplanted to the outer STH of integrating sphere together with LED tests; Promptly be merely the dismounting of mounting disc in fact, very convenient, and need not operate LED in the disassembly process; So can improve the security of LED; Not fragile LED saves time and operating personnel's workload, greatly improves testing efficiency.
Description of drawings
Fig. 1 is according to the LED burn-in test of the utility model decomposing schematic representation with the refrigerator of LED shell temperature control device;
Fig. 2 is the structural representation of mounting disc among Fig. 1;
Fig. 3 is the upward view of mounting disc among Fig. 2;
Fig. 4 is the cross-sectional schematic that the assembled relation of refrigerator shown in Fig. 1 is shown, wherein, and profile drawing line not among the figure;
Fig. 5 is the structural representation according to the refrigeration case of the LED shell temperature control device of the utility model;
Fig. 6 shows according to the refrigerator of the LED shell temperature control device of the utility model and the package assembly of refrigeration case.
Embodiment
The LED burn-in test of the utility model comprises refrigerator as shown in Figure 11 and refrigeration case 21 as shown in Figure 5 with LED shell temperature control device; Shown in Fig. 1 to 4; This refrigerator 1 comprises mounting disc 101, electric cold plate 102 and heating radiator 104, and this electricity cold plate 102 is fixedly installed on the heating radiator 104; Shown in Fig. 2 and 3, the middle part of this mounting disc 101 has opening 101a, and this mounting disc 101 is fixedly installed on the heating radiator 104 equally; Electric cold plate 102 is embedded among the opening 101a (in the present embodiment; Electricity cold plate 102 can have the appearance profile that is complementary with opening 101a, and the former is embedded among the latter just), and make heating radiator 104 be positioned at bottom surface one side towards mounting disc 101; Promptly for the orientation shown in Fig. 1 and 4, heating radiator 104 is positioned at the below of the bottom surface of mounting disc 101.As illustrated in Figures 5 and 6; The tank wall of this refrigeration case 21 is provided with at least one mounting hole site that runs through said tank wall 211; This refrigerator 1 is fixedly installed on the mounting hole site 211 through its mounting disc 101; Make heating radiator 104 place refrigeration case 21; And the surface that said opening 101a exposes of passing through that is used to LED aluminium base 3 is installed of electric cold plate 102 is placed outside the refrigeration case 21, promptly when carrying out burn-in test, be mounted on LED aluminium base 3 on the electric cold plate 102 and place the hot case 22 with the airtight isolation of refrigeration case to carry out burn-in test.
For the ease of refrigerator is installed; Can make refrigeration case 21 place the top of hot case 22; And mounting hole site 211 is arranged on the base plate (being the thermal insulation board between refrigeration case 21 and the hot case 22) of refrigeration case 21; During installation, whole refrigerator 1 is inverted (even heating radiator 104 is positioned at the top), installation personnel can be held the mounting hole site place that two hand-held handle 101b that are provided with on the bottom surface of mounting disc 101 are positioned over refrigerator 1 base plate.
For LED aluminium base 3 can effectively be dispelled the heat through refrigerator 1, can be between this electricity cold plate 102 and LED aluminium base 3 coated with thermally conductive silicone grease layer so that have high-termal conductivity between LED aluminium base 3 and the electric cold plate 102.
For mounting disc 101 and heating radiator 104 can closely be fitted, first sealing gasket of arranging around electric cold plate 102 105 can be set between mounting disc 101 and heating radiator 104, promptly electric cold plate 102 places first sealing gasket 105 of annular.To this; As shown in Figure 3; Can the ring groove 101c that is used for ccontaining first sealing gasket 105 that one circle caves inward be set around opening 101a on the bottom surface of this mounting disc 101; The heating radiator mounting hole that mounting disc 101 is fixedly installed on the heating radiator 104 can be arranged on this ring groove 101c, and also is provided with on first sealing gasket 105 and the corresponding through hole of heating radiator mounting hole, during installation; Make screw pass the corresponding through hole of the heating radiator mounting hole and first sealing gasket 105 in order, and make screw screw in the threaded hole on the heating radiator 104 and mounting disc 101 is fixedly installed on the heating radiator 104.
Because each LED aluminium base 3 has plurality of LEDs; And the refrigerator 1 of a plurality of LED of being pasted with aluminium bases 3 can be installed simultaneously in the refrigeration case 21; Therefore, can to accomplish one group simultaneously for example be more than 20 LEDs and be the burn-in tests and the temperature control of many groups through the LED shell temperature control device of the utility model.
Because when test; As shown in Figure 6, LED aluminium base 3 places hot case 22, and needs to be connected in and provide the wiring of measuring current to be connected to be arranged on the end of the interior connecting terminal block of refrigeration case 21 for each LEDs on the wiring solder joint of LED aluminium base 3; Therefore; For the ease of wiring, as shown in Figure 3, can in mounting disc 101, be provided with what run through its end face and bottom surface for example is the cable-through hole 101d in heating radiator 103 peripheries (perhaps be in the aluminium base periphery) layout; Like this, just, can the wiring on the wiring solder joint that be connected in the LED aluminium base be caused in the refrigeration case 21 through cable-through hole 101d.At this, for example be on the connection terminal of corresponding wiring on the other end of the connecting terminal block on the mounting bracket 217 that is installed in the refrigeration case 21 correspondence that can be connected to electric cabinet through the cable-through hole 213 of refrigeration case 21.
For the ease of with refrigerator 1 integral installation on refrigeration case 21, as shown in Figure 3, the mounting disc mounting hole 101e that arranges in the periphery of heating radiator that runs through this mounting disc can be set in mounting disc 101.Like this; When needs carry out burn-in test; Refrigerator 1 integral body that only needs to be equipped with LED aluminium base 3 is utilized mounting disc mounting hole 101e to be installed on the tank wall of refrigeration case 21 and is got final product; When mounted, in order to guarantee the impermeability between refrigeration case 21 and the hot case 22, one second sealing gasket 215 can be set between the tank wall of mounting disc 101 and refrigeration case 21.
Above-mentioned refrigeration case 21 is except that the structure relevant with refrigerator 1; Remaining for example is the conventional design structure that the design of refrigeration system and air inner cycle channel all can be adopted existing high-low temperature test chamber; Comprise operating room 216 and refrigeration pulpit (not shown) like this refrigeration case 21; The refrigeration system of refrigeration case is installed in the refrigeration pulpit; Operating room 216 and the dividing plate of refrigeration between the pulpit are provided with air outlet 212 and return air inlet 214, and this refrigeration system generally includes refrigeration compressor, evaporator and is used to accomplish the blower fan etc. of air circulation.For this kind structure; Mounting hole site 211 is arranged on the tank wall of operating room 216; Can know according to above-mentioned installation requirement; The tank wall that mounting hole site 211 is set depends on the position relation of refrigeration case 21 and hot case 22 in the LED aging testing system, and promptly this tank wall should be refrigeration case and the separated thermal insulation board of hot case.Above-mentioned refrigeration case 21 also can be provided with the view window 218 that is used to observe its inner case.
The above is merely the utility model preferred implementation, is not the practical range that is used for limiting the utility model, and the equivalence of in the protection domain of the utility model, being done in every case changes and modifies, and all should think to have fallen in the protection domain of the utility model.
Claims (7)
1. a LED burn-in test is with LED shell temperature control device; It is characterized in that: comprise refrigerator and refrigeration case; Said refrigerator comprises heating radiator, electric cold plate and mounting disc, and said electric cold plate and mounting disc all are fixedly installed on the heating radiator, and the middle part of said mounting disc has opening; Electric cold plate is embedded in the said opening, and makes heating radiator be positioned at a side towards the mounting disc bottom surface;
The tank wall of said refrigeration case is provided with at least one mounting hole site that runs through said tank wall; Said refrigerator is fixedly installed on the said mounting hole site through its mounting disc, makes said heating radiator place refrigeration case, and the surface that said opening exposes of passing through that is used to the LED aluminium base is installed of electric cold plate is placed outside the refrigeration case.
2. LED burn-in test according to claim 1 is characterized in that with LED shell temperature control device: the surfaces coated that being used to of said electric cold plate installed the LED aluminium base is covered with the heat-conducting silicone grease layer.
3. LED burn-in test according to claim 1 is characterized in that with LED shell temperature control device: have hand-held handle on the bottom surface of said mounting disc.
4. LED burn-in test according to claim 1 is characterized in that with LED shell temperature control device: be provided with second sealing gasket between the tank wall that mounting hole site is set of said mounting disc and refrigeration case.
5. LED burn-in test according to claim 1 is characterized in that with LED shell temperature control device: be provided with first sealing gasket of arranging around electric cold plate between said mounting disc and the heating radiator.
6. LED burn-in test according to claim 1 is characterized in that with LED shell temperature control device: the profile of said electric cold plate and the opening of mounting disc have the appearance profile that is complementary, and electric cold plate is embedded in the said opening just.
7. LED burn-in test according to claim 1 is characterized in that with LED shell temperature control device: said mounting disc is provided with the cable-through hole that runs through its end face and bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220078558 CN202494938U (en) | 2012-03-05 | 2012-03-05 | LED casing temperature control device for LED aging test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220078558 CN202494938U (en) | 2012-03-05 | 2012-03-05 | LED casing temperature control device for LED aging test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494938U true CN202494938U (en) | 2012-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220078558 Expired - Fee Related CN202494938U (en) | 2012-03-05 | 2012-03-05 | LED casing temperature control device for LED aging test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472382A (en) * | 2013-01-10 | 2013-12-25 | 东莞市伟创东洋自动化设备有限公司 | Circuit board aging system |
| CN104090599A (en) * | 2014-07-18 | 2014-10-08 | 厦门大学 | Power LED thermal characteristic measuring temperature control platform |
-
2012
- 2012-03-05 CN CN 201220078558 patent/CN202494938U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472382A (en) * | 2013-01-10 | 2013-12-25 | 东莞市伟创东洋自动化设备有限公司 | Circuit board aging system |
| CN104090599A (en) * | 2014-07-18 | 2014-10-08 | 厦门大学 | Power LED thermal characteristic measuring temperature control platform |
| CN104090599B (en) * | 2014-07-18 | 2016-03-02 | 厦门大学 | Power-type LED thermal characteristic measures temperature control console |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGZHOU PRODUCT QUALITY INSPECTION AND SUPERVISI Free format text: FORMER NAME: SHENZHEN MANYOUNG TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 213001 Jiangsu province Changzhou City Tianning Lanling Road No. 520 Patentee after: Changzhou Product Quality Inspection and Supervision Institute Patentee after: Shenzhen Manyoung Technology Co.,Ltd. Address before: The comprehensive building of Tsinghua Nanshan District Keyuan Road Shenzhen city Guangdong province 518000 8 807 Patentee before: Shenzhen Manyoung Technology Co.,Ltd. Patentee before: Changzhou Product Quality Inspection and Supervision Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20190305 |