CN103969290A - LED superconductive board heat dissipation performance testing equipment - Google Patents
LED superconductive board heat dissipation performance testing equipment Download PDFInfo
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- CN103969290A CN103969290A CN201410153902.9A CN201410153902A CN103969290A CN 103969290 A CN103969290 A CN 103969290A CN 201410153902 A CN201410153902 A CN 201410153902A CN 103969290 A CN103969290 A CN 103969290A
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Abstract
The invention belongs to the technical field of thermal test equipment, particularly relates to an LED superconductive board heat dissipation performance testing equipment, and solves the technical problems that the heat dissipation performance of a heat dissipation board cannot be tested in the prior art, and the like. The LED superconductive board heat dissipation performance testing equipment comprises a workbench, wherein one or more bases made of thermal insulating material are arranged on the workbench; an electric heater is arranged on each base; a heat conduction plate is arranged at the upper part of each base; each heat conduction plate is connected with a lifting drive mechanism which can drive the lifting of each heat conduction plate to clamp an LED superconductive board between each base and each heat conduction plate; a temperature sensor used for detecting the temperature of the LED superconductive board is further arranged on each base; the electric heaters, the lifting drive mechanisms and the temperature sensors are connected with a control circuit respectively. The LED superconductive board heat dissipation performance testing equipment has the advantages that the heat dissipation performance of a heat dissipation board can be tested, and the testing efficiency is high.
Description
Technical field
The invention belongs to hot testing apparatus technical field, relate in particular to a kind of LED superconductive plate heat dispersion testing apparatus.
Background technology
LED module is exactly that light emitting diode is encapsulated by certain regularly arranged together again, adds the product of some water-proofing treatment compositions; LED module is the wider product of application in LED product, aspect structure aspects and electronics, also there is very large difference, simple is exactly just to have become a LED module with a wiring board that LED is housed with shell, complicated just add that some control, constant current source and relevant radiating treatment make the LED life-span and luminous intensity better.At present, existing LED module has heat sink (being equivalent to the application's LED superconductive plate) on it, and the heat dispersion of this heat sink directly affects the serviceable life of whole LED module; In order to ensure to have stable heat dispersion after heat sink is installed, existing proving installation can only be the serviceable life of the whole LED module of test or LED product, and it not only cannot measure the thermal diffusivity of heat sink, and testing efficiency is lower; For this reason, people have carried out long-term exploration, have proposed various solutions.
For example, Chinese patent literature discloses a kind of opto-electronic testing apparatus [application number: 200820088089.1], comprises integrating sphere, adjustable vertical rod, probe, spanner, built-up circuit box, heat radiation push rod, tested LED lamp, pressing plate, clamp body, clamping fixture seat, guide rail, spanner is wherein positioned at the right side of device, and clamping fixture seat is Elastic Contact, and clamping fixture seat is arranged on guide rail, clamping fixture seat can slide along guide rail direction on guide rail.
Above-mentioned scheme has been improved prior art to a certain extent, but this scheme still cannot be tested the heat dispersion of LED module group radiating plate, cannot ensure to there is stable heat dispersion after heat sink is installed, there is hidden danger thereby use, in addition, testing efficiency is low and poor practicability.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of and can test heat dispersion and the high LED superconductive plate heat dispersion testing apparatus of testing efficiency.
For achieving the above object, the present invention has adopted following technical proposal: this LED superconductive plate heat dispersion testing apparatus comprises worktable, on worktable, be provided with the pedestal that at least one is made up of thermal insulation material, on each pedestal, be respectively equipped with electric heating body, above each pedestal, be respectively equipped with heat-conducting plate, thereby and each heat-conducting plate is connected with the lift drive mechanism that can drive heat-conducting plate lifting that LED superconductive plate is clamped between pedestal and heat-conducting plate respectively, on each pedestal, be also respectively equipped with the temperature sensor for detection of LED superconductive plate temperature, described electric heating body, lift drive mechanism is connected with control circuit respectively with temperature sensor.It can ensure the pedestal that thermal insulation material is made the accuracy of test result can prevent heat loss.
In this application, the heat that LED superconductive plate absorption electric heating body produces is equivalent to LED superconductive plate and in the time that reality is used, absorbs the heat that power supply terminal produces, the heat that heat-conducting plate absorbs is equivalent to be located at the heat that the LED light source on LED superconductive plate distributes, test the heat dispersion of LED superconductive plate by the mode of simulation by temperature sensor, thereby there is stable heat dispersion after ensureing to install; Lift drive mechanism can improve testing efficiency, ensures the application's practicality.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, described pedestal upper surface central area has groove, in groove, be embedded with electric heating body, this electric heating body center is provided with the boss that protrudes from described groove, on described boss, have cell body, in cell body, be provided with described temperature sensor, described electric heating body is connected with supply lines and on pedestal, has the line outlet groove of drawing for described supply lines.The effect of this structure is: can improve the strength of joint between electric heating body and pedestal, ensure that frequent test can not make electric heating body depart from the groove of pedestal, ensures serviceable life yet.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, described lift drive mechanism comprises frame and is vertically arranged on the cylinder in frame, and the piston rod of described cylinder is connected with heat-conducting plate.Certain cylinder here can be also oil cylinder etc. lift drive mechanism.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, in described heat-conducting plate, be provided with heat-conducting medium circulation passage, described heat-conducting medium circulation passage is connected with medium circulating mechanism, is coated with coating layer in heat-conducting plate periphery, between described clad inner side and heat-conducting plate, is provided with heat conductive silica gel.The effect of medium circulating mechanism is: the temperature that prevents heat-conducting plate constantly rises and cannot make heat-conducting plate normal mode propose the heat that the LED light source on LED superconductive plate distributes, clad comprises aluminium-foil paper, this structure can further ensure the stability of heat conduction, secondly, thereby can meet according to actual requirement the requirement of heat conduction, heat-conducting medium circulation passage can be S shape, snakelike, U-shaped and various irregular heat-conducting medium circulation passage.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, described medium circulating mechanism comprises media storage case, on media storage case, be provided with the total liquid back pipe of medium main drain pipe and medium, on medium main drain pipe, be connected with the sub-drain pipe of medium being connected one by one with described heat-conducting medium circulation passage liquid feeding end, on the every sub-drain pipe of medium, be respectively equipped with out hydraulic control valve, on the total liquid back pipe of medium, be connected with the sub-liquid back pipe of medium being connected one by one with described heat-conducting medium circulation passage liquid returning end, on the every sub-liquid back pipe of medium, be respectively equipped with out back hydraulic control valve.On media storage case, be connected with water outlet pipe, this water outlet pipe can be for employee's purposes of washing one's hands etc.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, in described media storage case, be provided with medium temperature detecting device, on media storage case, be provided with the medium temperature controller being connected with this medium temperature detecting device, the cooling mechanism that is also provided with radiator structure on described media storage case or is connected with medium temperature controller.This cooling mechanism comprises some radiating ribs or the radiator fan being arranged on media storage case or is arranged on the heat exchange coil (having circulating refrigerant medium in heat exchange coil) in media storage case.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, described radiator structure comprises the heat sink being arranged on media storage case and is arranged on the dismountable cover plate of media storage box top, is provided with some louvres on heat sink.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, described heat-conducting plate middle part is provided with holder, in frame, be provided with cylinder positioning seat, described cylinder is fixed on cylinder positioning seat and the piston rod of this cylinder is connected with holder, between holder and cylinder positioning seat, is provided with guide frame.This structure can ensure the stability of heat-conducting plate lifting.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, described guide frame comprises the guide pole of some vertical settings, and the lower end of guide pole is fixed on holder, and upper end is located in the orienting sleeve on cylinder positioning seat.
In above-mentioned LED superconductive plate heat dispersion testing apparatus, described worktable is provided with and described pedestal fixed support one to one, and described pedestal is arranged on fixed support.
Compared with prior art, the advantage of this LED superconductive plate heat dispersion testing apparatus is: 1, design is more reasonable, the heat that LED superconductive plate absorption electric heating body produces is equivalent to LED superconductive plate and in the time that reality is used, absorbs the heat that power supply terminal produces, the heat that heat-conducting plate absorbs is equivalent to be located at the heat that the LED light source on LED superconductive plate distributes, test the heat dispersion of LED superconductive plate by the mode of simulation by temperature sensor, thereby there is stable heat dispersion after ensureing to install; Lift drive mechanism can improve testing efficiency, ensures the application's practicality; 2, simple in structure and be easy to manipulation, practical.
Brief description of the drawings
Fig. 1 is structural representation provided by the invention.
Fig. 2 is partial structurtes schematic diagram provided by the invention.
Fig. 3 is heat-conducting plate structure schematic diagram provided by the invention.
Fig. 4 is LED superconductive plate structural representation provided by the invention.
In figure, worktable 1, fixed support 11, pedestal 2, groove 21, electric heating body 2a, boss 2b, cell body 2c, supply lines 2d, line outlet groove 2e, heat-conducting plate 3, clad 3a, heat conductive silica gel 3b, heat-conducting medium circulation passage 31, holder 32, guide pole 32a, lift drive mechanism 4, frame 41, cylinder 42, cylinder positioning seat 43, orienting sleeve 43a, temperature sensor 5, medium circulating mechanism 6, media storage case 61, medium main drain pipe 62, the total liquid back pipe 63 of medium, the sub-drain pipe 64 of medium, go out hydraulic control valve 64a, the sub-liquid back pipe 65 of medium, go out back hydraulic control valve 65a, medium temperature controller 66, heat sink 67, dismountable cover plate 68, LED superconductive plate a.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As Figure 1-4, this LED superconductive plate heat dispersion testing apparatus comprises worktable 1, on worktable 1, be provided with the pedestal 2 that at least one is made up of thermal insulation material, on worktable 1, be not provided with and described pedestal 2 fixed support 11 one to one for the ease of installing, described pedestal 2 is arranged on fixed support 11, on each pedestal 2, be respectively equipped with electric heating body 2a, above each pedestal 2, be respectively equipped with heat-conducting plate 3, thereby and each heat-conducting plate 3 is connected with the lift drive mechanism 4 that can drive heat-conducting plate 3 liftings that LED superconductive plate a is clamped between pedestal 2 and heat-conducting plate 3 respectively, on each pedestal 2, be also respectively equipped with the temperature sensor 5 for detection of LED superconductive plate a temperature, described electric heating body 2a, lift drive mechanism 4 is connected with control circuit respectively with temperature sensor 5,
Prioritization scheme, pedestal 2 upper surface central areas at the present embodiment have groove 21, in groove 21, be embedded with electric heating body 2a, this electric heating body 2a center is provided with the boss 2b that protrudes from described groove 21, on described boss 2b, have cell body 2c, in cell body 2c, be provided with described temperature sensor 5, described electric heating body 2a is connected with supply lines 2d and on pedestal 2, has the line outlet groove 2e drawing for described supply lines 2d.
Prioritization scheme, the lift drive mechanism 4 of the present embodiment comprises frame 41 and is vertically arranged on the cylinder 42 in frame 41, the piston rod of described cylinder 42 is connected with heat-conducting plate 3.
In order to be applicable to the LED superconductive plate a of different volumes size, in the heat-conducting plate 3 of the present embodiment, be provided with heat-conducting medium circulation passage 31, further, this heat-conducting medium circulation passage 31 can be any one in S shape, snakelike, U-shaped and various irregular heat-conducting medium circulation passage, described heat-conducting medium circulation passage 31 is connected with medium circulating mechanism 6, the 3a that is coated with coating layer in heat-conducting plate 3 peripheries, is provided with heat conductive silica gel 3b between described clad 3a inner side and heat-conducting plate 3.The clad 3a here comprises aluminium-foil paper, and this structure can further ensure the stability of heat conduction.
Further, this medium circulating mechanism 6 comprises media storage case 61, on media storage case 61, be provided with the total liquid back pipe 63 of medium main drain pipe 62 and medium, on medium main drain pipe 62, be connected with the sub-drain pipe 64 of medium being connected one by one with described heat-conducting medium circulation passage 31 liquid feeding ends, on the every sub-drain pipe 64 of medium, be respectively equipped with out hydraulic control valve 64a, on the total liquid back pipe 63 of medium, be connected with the sub-liquid back pipe 65 of medium being connected one by one with described heat-conducting medium circulation passage 31 liquid returning ends, on the every sub-liquid back pipe 65 of medium, be respectively equipped with out back hydraulic control valve 65a.
In order to ensure the practicality of the present embodiment and the accuracy of test result, in media storage case 61, be provided with medium temperature detecting device, on media storage case 61, be provided with the medium temperature controller 66 being connected with this medium temperature detecting device, the cooling mechanism that is also provided with radiator structure on described media storage case 61 or is connected with medium temperature controller 66; Further, this radiator structure comprises the heat sink 67 being arranged on media storage case 61 and the dismountable cover plate 68 that is arranged on media storage case 61 tops, is provided with some louvres on heat sink 67.Secondly, the cooling mechanism of the present embodiment comprises some radiating ribs or the radiator fan being arranged on media storage case 61 or is arranged on the heat exchange coil (having circulating refrigerant medium in heat exchange coil) in media storage case 61, and heat exchange coil is taken away heat and for washing one's hands etc. purposes winter.
In order to ensure the stability of heat-conducting plate 3 liftings, be provided with holder 32 at heat-conducting plate 3 middle parts, in frame 41, be provided with cylinder positioning seat 43, described cylinder 42 is fixed on cylinder positioning seat 43 and the piston rod of this cylinder 42 is connected with holder 32, between holder 32 and cylinder positioning seat 43, is provided with guide frame.Concrete, this guide frame comprises the guide pole 32a of some vertical settings, and the lower end of guide pole 32a is fixed on holder 32, and upper end is located in the orienting sleeve 43a on cylinder positioning seat 43.
The principle of work of the present embodiment is as follows: the heat that LED superconductive plate a absorption electric heating body 2a produces is equivalent to LED superconductive plate a and in the time that reality is used, absorbs the heat that power supply terminal produces, the heat that heat-conducting plate 3 absorbs is equivalent to be located at the heat that the LED light source on LED superconductive plate a distributes, test the heat dispersion of LED superconductive plate a by temperature sensor 5 by the mode of simulation, in addition, be arranged on the clad 3a on heat-conducting plate 3, heat conductive silica gel 3b can further improve the practicality of the present embodiment, ensure the stability of heat conduction, secondly, heat-conducting medium circulation passage 31 is set to be taken away with medium circulating mechanism 6 its heats that heat-conducting plate 3 can be absorbed that are connected with heat-conducting medium circulation passage 31, further ensure the accuracy of test result, measuring stability is good and accuracy is high, thereby ensure after the present embodiment is mounted to there is stable heat dispersion, in addition, the lift drive mechanism 4 of the present embodiment can improve testing efficiency, ensures the application's practicality.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used worktable 1 herein, fixed support 11, pedestal 2, groove 21, electric heating body 2a, boss 2b, cell body 2c, supply lines 2d, line outlet groove 2e, heat-conducting plate 3, clad 3a, heat conductive silica gel 3b, heat-conducting medium circulation passage 31, holder 32, guide pole 32a, lift drive mechanism 4, frame 41, cylinder 42, cylinder positioning seat 43, orienting sleeve 43a, temperature sensor 5, medium circulating mechanism 6, media storage case 61, medium main drain pipe 62, the total liquid back pipe 63 of medium, the sub-drain pipe 64 of medium, go out hydraulic control valve 64a, the sub-liquid back pipe 65 of medium, go out back hydraulic control valve 65a, medium temperature controller 66, heat sink 67, dismountable cover plate 68, the terms such as LED superconductive plate a, but do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. a LED superconductive plate heat dispersion testing apparatus, comprise worktable (1), it is characterized in that, described worktable (1) is provided with at least one pedestal of being made up of thermal insulation material (2), on each pedestal (2), be respectively equipped with electric heating body (2a), be respectively equipped with heat-conducting plate (3) in the top of each pedestal (2), and each heat-conducting plate (3) respectively with can drive heat-conducting plate (3) thus the lift drive mechanism (4) that lifting is clamped in LED superconductive plate between pedestal (2) and heat-conducting plate (3) is connected, on each pedestal (2), be also respectively equipped with the temperature sensor (5) for detection of LED superconductive plate (a) temperature, described electric heating body (2a), lift drive mechanism (4) is connected with control circuit respectively with temperature sensor (5).
2. LED superconductive plate heat dispersion testing apparatus according to claim 1, it is characterized in that, described pedestal (2) upper surface central area has groove (21), in groove (21), be embedded with electric heating body (2a), this electric heating body (2a) center is provided with the boss (2b) that protrudes from described groove (21), on described boss (2b), have cell body (2c), in cell body (2c), be provided with described temperature sensor (5), described electric heating body (2a) is connected with supply lines (2d) and on pedestal (2), has the line outlet groove (2e) of drawing for described supply lines (2d).
3. LED superconductive plate heat dispersion testing apparatus according to claim 1, it is characterized in that, described lift drive mechanism (4) comprises frame (41) and is vertically arranged on the cylinder (42) in frame (41), and the piston rod of described cylinder (42) is connected with heat-conducting plate (3).
4. according to the LED superconductive plate heat dispersion testing apparatus described in claim 1 or 2 or 3, it is characterized in that, in described heat-conducting plate (3), be provided with heat-conducting medium circulation passage (31), described heat-conducting medium circulation passage (31) is connected with medium circulating mechanism (6), be coated with coating layer (3a) in heat-conducting plate (3) periphery, between described clad (3a) inner side and heat-conducting plate (3), be provided with heat conductive silica gel (3b).
5. LED superconductive plate heat dispersion testing apparatus according to claim 4, it is characterized in that, described medium circulating mechanism (6) comprises media storage case (61), on media storage case (61), be provided with medium main drain pipe (62) and the total liquid back pipe of medium (63), on medium main drain pipe (62), be connected with the sub-drain pipe of medium (64) being connected one by one with described heat-conducting medium circulation passage (31) liquid feeding end, on the every sub-drain pipe of medium (64), be respectively equipped with out hydraulic control valve (64a), on the total liquid back pipe of medium (63), be connected with the sub-liquid back pipe of medium (65) being connected one by one with described heat-conducting medium circulation passage (31) liquid returning end, on the every sub-liquid back pipe of medium (65), be respectively equipped with out back hydraulic control valve (65a).
6. LED superconductive plate heat dispersion testing apparatus according to claim 5, it is characterized in that, in described media storage case (61), be provided with medium temperature detecting device, on media storage case (61), be provided with the medium temperature controller (66) being connected with this medium temperature detecting device, the cooling mechanism that is also provided with radiator structure on described media storage case (61) or is connected with medium temperature controller (66).
7. LED superconductive plate heat dispersion testing apparatus according to claim 6, it is characterized in that, described radiator structure comprises the heat sink (67) being arranged on media storage case (61) and is arranged on the dismountable cover plate (68) at media storage case (61) top, on heat sink (67), is provided with some louvres.
8. LED superconductive plate heat dispersion testing apparatus according to claim 3, it is characterized in that, described heat-conducting plate (3) middle part is provided with holder (32), in frame (41), be provided with cylinder positioning seat (43), described cylinder (42) is fixed on cylinder positioning seat (43) piston rod upper and this cylinder (42) and is connected with holder (32), between holder (32) and cylinder positioning seat (43), is provided with guide frame.
9. LED superconductive plate heat dispersion testing apparatus according to claim 8, it is characterized in that, described guide frame comprises the guide pole (32a) of some vertical settings, it is upper that the lower end of guide pole (32a) is fixed on holder (32), and upper end is located in the orienting sleeve (43a) on cylinder positioning seat (43).
10. according to the LED superconductive plate heat dispersion testing apparatus described in claim 1 or 2 or 3, it is characterized in that, described worktable (1) is provided with and described pedestal (2) fixed support (11) one to one, and described pedestal (2) is arranged on fixed support (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153902.9A CN103969290B (en) | 2014-04-17 | 2014-04-17 | LED superconductive plate heat dispersion test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153902.9A CN103969290B (en) | 2014-04-17 | 2014-04-17 | LED superconductive plate heat dispersion test equipment |
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| CN103969290A true CN103969290A (en) | 2014-08-06 |
| CN103969290B CN103969290B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410153902.9A Expired - Fee Related CN103969290B (en) | 2014-04-17 | 2014-04-17 | LED superconductive plate heat dispersion test equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807851A (en) * | 2015-04-21 | 2015-07-29 | 东莞市卡尔文塑胶科技有限公司 | Point-to-point method and equipment for detecting coefficients of heat conductivity and heat dissipation of standard sample |
| CN108762336A (en) * | 2018-06-20 | 2018-11-06 | 东莞纳普能源科技有限公司 | A kind of temperature tester and its workflow |
| CN113720626A (en) * | 2021-08-31 | 2021-11-30 | 英业达科技有限公司 | Test card body and display adapter for test |
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| CN101832959A (en) * | 2009-03-12 | 2010-09-15 | 陈文进 | Device and method for detecting heat-dissipating plate |
| CN202024974U (en) * | 2011-03-18 | 2011-11-02 | 华南理工大学 | Vapor chamber performance integrated measuring device |
| CN203858221U (en) * | 2014-04-17 | 2014-10-01 | 田猛龙 | Equipment for testing heat dissipation performances of LED (light emitting diode) superconducting plates |
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Patent Citations (5)
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| US5940784A (en) * | 1996-03-08 | 1999-08-17 | Metrisa, Inc. | Heat flow meter instruments |
| JP2009244084A (en) * | 2008-03-31 | 2009-10-22 | Tokai Rubber Ind Ltd | Apparatus and method for measuring thermal conductivity of thermally joined material |
| CN101832959A (en) * | 2009-03-12 | 2010-09-15 | 陈文进 | Device and method for detecting heat-dissipating plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104807851A (en) * | 2015-04-21 | 2015-07-29 | 东莞市卡尔文塑胶科技有限公司 | Point-to-point method and equipment for detecting coefficients of heat conductivity and heat dissipation of standard sample |
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| CN113720626A (en) * | 2021-08-31 | 2021-11-30 | 英业达科技有限公司 | Test card body and display adapter for test |
| CN113720626B (en) * | 2021-08-31 | 2024-05-17 | 英业达科技有限公司 | Test card body and display adapter for test |
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