CN103048060B - Junction temperature measuring device for LED (Light Emitting Diode) lamp - Google Patents

Junction temperature measuring device for LED (Light Emitting Diode) lamp Download PDF

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Publication number
CN103048060B
CN103048060B CN201110307991.4A CN201110307991A CN103048060B CN 103048060 B CN103048060 B CN 103048060B CN 201110307991 A CN201110307991 A CN 201110307991A CN 103048060 B CN103048060 B CN 103048060B
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led light
light fixture
junction temperature
led
hand adjustment
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CN103048060A (en
Inventor
张涛
冯华云
刘石神
袁士东
童广辉
陈要玲
董硕
张晶晶
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WUXI KELONG TESTING MECHANICAL CO Ltd
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CHANGZHOU INSTITUTE OF OPTOELECTRONIC TECHNOLOGY
Shanghai Institute of Technical Physics of CAS
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Abstract

The invention discloses a junction temperature measuring device for an LED (Light Emitting Diode) lamp, which comprises a plurality of optical fibers, optical fiber fixing seats, a moving mechanism, a lifting mechanism, a universal clamping platform, a counterweight mechanism and a frame, wherein each optical fiber is fixedly arranged on the moving mechanism by one optical fiber fixing seat, and the moving mechanism is arranged on the lifting mechanism; the LED lamp is arranged on the universal clamping platform, and the counterweight mechanism is fixedly arranged at the bottom of the universal clamping platform; and the lifting mechanism and the universal clamping platform are arranged on the frame, and a diaphragm structure is arranged on each optical fiber fixing seat. The LED lamp can stably rotate along with the universal clamping platform through a counter weight, the positions of the optical fibers are adjusted by the moving mechanism and the lifting mechanism, and each diaphragm structure eliminates the impact of other LEDs or stray light in the LED lamp on the measured LED spectrum acquisition, so that the spectrum of each LED in the LED lamp is acquired, and thus the junction temperature of each LED is accurately obtained, and the operation is convenient and quick.

Description

LED light fixture junction temperature measurement device
Technical field
The present invention relates to LED light fixture junction temperature measurement device.
Background technology
Along with the fast development of semiconductor lighting technology, the light fixture (as LED street lamp, LED auto lamp etc.) take great power LED as light source is progressively being developed, and related application is carried out.Because the application of these high-power LED lamps is in the starting stage, there is very big-difference in the state of the art of product and functional performance.On the one hand, user is in the urgent need to obtaining stable performance, safe and reliable, energy-conserving and environment-protective, long LED light fixture of life-span, but properties of product (especially to the index such as reliability, life-span) to different vendor lack the choice criteria of quantification; On the other hand, production firm lack technological means at short notice the index such as the quality to LED light fixture, reliability, life-span quantize, thereby make the application of product and popularization be subject to serious restriction and impact.Under duty, in LED light fixture, the junction temperature of LED is the principal element that affects high-power LED lamp property indices (as luminescence efficiency, colour temperature and development index etc.), is also the key factor that has a strong impact on LED light fixture reliability and serviceable life.Realize the junction temperature of Measurement accuracy LED light fixture each LED under true service condition, for improving enterprise's semiconductor lighting product quality, increase product reliability, improve product service condition, the aspect such as assessment life of product is significant.
At present, the existing junction temperature that adopts electric method and spectroscopy measurements LED light fixture, but pick-up unit can only detect the junction temperature of whole LED light fixture or LED module, can not accurately obtain the junction temperature of each LED in LED light fixture, and in LED light fixture, the damage of any one LED all can cause and the inefficacy of its place LED module or whole LED light fixture LED light fixture cannot normally be worked.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of measurement mechanism that can accurately obtain the junction temperature of each LED in LED light fixture.
In order to solve the problems of the technologies described above, technical scheme provided by the present invention is: LED light fixture junction temperature measurement device, comprises optical fiber, fiber fixed seat, travel mechanism, elevating mechanism, universal clamping platform, balance weight mechanism and framework; Described optical fiber is provided with multiple, and each optical fiber is fixed in travel mechanism by a fiber fixed seat; Described travel mechanism is arranged on elevating mechanism; Described LED lamp installation is on universal clamping platform; Described balance weight mechanism is fixed on the bottom of universal clamping platform; Described elevating mechanism and universal clamping platform are installed on framework.
Described fiber fixed seat is provided with light hurdle structure.
Described travel mechanism comprises horizontal mobile device, longitudinal moving device, horizontal hand adjustment device, longitudinal hand adjustment device and mobile platform; Described horizontal mobile device and mobile platform are laterally slidably connected, and longitudinal moving device is connected with horizontal mobile device longitudinal sliding motion; Described horizontal hand adjustment device and longitudinally hand adjustment device are equipped with multiple, and multiple horizontal hand adjustment devices are all laterally slidably connected with longitudinal moving device, and each longitudinal hand adjustment device is all connected with the longitudinal sliding motion of a horizontal hand adjustment device; Described each optical fiber is fixed on a longitudinal hand adjustment device by a fiber fixed seat; Described mobile platform is arranged on elevating mechanism.
Described horizontal mobile device and longitudinal moving device move by driven by servomotor.
On described horizontal hand adjustment device and longitudinal hand adjustment device, be equipped with rule.
Described elevating mechanism comprises guide pillar, motor, drive link and control knob; Described travel mechanism is arranged on drive link, and guide pillar is travel mechanism's guiding; Described motor positive and inverse drives drive link to drive travel mechanism to carry out lifting; Described control knob control motor opens and closes.
Described universal clamping platform comprises erecting bed, fixture, electric rotary table, bearing seat, shaft coupling and shaft coupling pull bar; Described LED light fixture is fixed on erecting bed by fixture, and balance weight mechanism is fixed on the bottom of erecting bed; Described erecting bed and bearing seat are rotationally connected, and are connected with electric rotary table by shaft coupling; Being connected of described shaft coupling pull bar control shaft coupling and erecting bed, separation.
The erecting bed of described universal clamping platform can be installed by fixture the LED light fixture of different size.
Described balance weight mechanism regulates button before and after comprising balancing weight, balancing weight lift adjustment button and balancing weight; Described balancing weight is provided with four kinds, is respectively 1KG, 2KG, 4KG and 5KG, and four kinds of balancing weights can combination in any use; The turning moment of described balance weight mechanism is by regulating button to regulate before and after balancing weight lift adjustment button and/or balancing weight.
Adopt after technique scheme, the present invention has positive effect: (1) of the present invention to be made LED light fixture can follow universal clamping platform by balancing weight steadily to rotate, use travel mechanism and elevating mechanism to adjust the position of optical fiber, thereby can gather the spectrum of each LED in LED light fixture, and then realized the junction temperature of the each LED of accurate acquisition, convenient to operation.
(2) fiber fixed seat of the present invention is provided with light hurdle structure, can effectively eliminate other LED or the impact of parasitic light on tested LED spectra collection in LED light fixture, makes the spectrum of collecting fiber more accurate.
(3) balance weight mechanism of the present invention comprises four kinds of balancing weights, and this mechanism rotates steadily LED light fixture in test process, and running accuracy is high.
(4) erecting bed of universal clamping platform of the present invention can be installed by fixture the LED light fixture of different size, and this structure makes the present invention have stronger versatility, applied widely.
Accompanying drawing explanation
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A place enlarged drawing of Fig. 1.
Fig. 3 is the B place enlarged drawing of Fig. 1.
Label in accompanying drawing is:
Optical fiber 2, fiber fixed seat 3, travel mechanism 4, horizontal mobile device 4-1, longitudinal moving device 4-2, horizontal hand adjustment device 4-3, longitudinal hand adjustment device 4-4, mobile platform 4-5, elevating mechanism 5, guide pillar 5-1, motor 5-2, drive link 5-3, control knob 5-4, universal clamping platform 6, erecting bed 6-1, fixture 6-2, electric rotary table 6-3, bearing seat 6-4, shaft coupling 6-5, shaft coupling pull bar 6-6, balance weight mechanism 7, framework 8.
Embodiment
(embodiment 1)
See Fig. 1 to Fig. 3, the present embodiment comprises optical fiber 2, fiber fixed seat 3, travel mechanism 4, elevating mechanism 5, universal clamping platform 6, balance weight mechanism 7 and framework 8.
Travel mechanism 4 comprises horizontal mobile device 4-1, longitudinal moving device 4-2, horizontal hand adjustment device 4-3, longitudinal hand adjustment device 4-4 and mobile platform 4-5.Horizontal mobile device 4-1 and mobile platform 4-5 are laterally slidably connected, and longitudinal moving device 4-2 is connected with horizontal mobile device 4-1 longitudinal sliding motion.Laterally hand adjustment device 4-3 and longitudinal hand adjustment device 4-4 are equipped with four, and four horizontal hand adjustment device 4-3 are all laterally slidably connected with longitudinal moving device 4-2, and each longitudinal hand adjustment device 4-4 is all connected with horizontal hand adjustment device 4-3 longitudinal sliding motion.Optical fiber 2 is provided with four, and each optical fiber 2 is fixed on a longitudinal hand adjustment device 4-4 by a fiber fixed seat 3.Fiber fixed seat 3 is provided with light hurdle structure, for eliminating the spectra collection impact on LED test module of LED light fixture 1 other LED modules or parasitic light.Mobile platform 4-5 is arranged on elevating mechanism 5.Horizontal mobile device 4-1 and longitudinal moving device 4-2 move by driven by servomotor.Laterally on hand adjustment device 4-3 and longitudinal hand adjustment device 4-4, be equipped with rule.Elevating mechanism 5 comprises guide pillar 5-1, motor 5-2, drive link 5-3 and control knob 5-4.It is upper that travel mechanism 4 is arranged on drive link 5-3, and guide pillar 5-1 is that travel mechanism 4 leads.Motor 5-2 rotating drives drive link 5-3 to drive travel mechanism 4 to carry out lifting.Control knob 5-4 controls motor 5-2 and opens and closes.Universal clamping platform 6 comprises erecting bed 6-1, fixture 6-2, electric rotary table 6-3, bearing seat 6-4, shaft coupling 6-5 and shaft coupling pull bar 6-6.LED light fixture 1 is fixed on erecting bed 6-1 by fixture 6-2.Erecting bed 6-1 and bearing seat 6-4 are rotationally connected, and are connected with electric rotary table 6-3 by shaft coupling 6-5.Shaft coupling pull bar 6-6 controls being connected of shaft coupling 6-5 and erecting bed 6-1, separation.The erecting bed 6-1 of universal clamping platform 6 can install by fixture 6-2 the LED light fixture 1 of different size.Rotary electric universal stage 6-3 makes the bottom-up of erecting bed 6-1, thereby balance weight mechanism 7 can be fixed on to the bottom of erecting bed 6-1.Balance weight mechanism 7 regulates button before and after comprising balancing weight, balancing weight lift adjustment button and balancing weight.Balancing weight is provided with four kinds, is respectively 1KG, 2KG, 4KG and 5KG, and four kinds of balancing weights can combination in any use.The turning moment of balance weight mechanism 7 is by regulating button to regulate before and after balancing weight lift adjustment button and/or balancing weight.Elevating mechanism 5 and universal clamping platform 6 are installed on framework 8, and structure is steadily reliable.
Select different balancing weights or balancing weight combination to carry out counterweight according to the weight of LED light fixture 1, pulling open shaft coupling pull bar 6-6 departs from shaft coupling 6-5 and erecting bed 6-1, thereby erecting bed 6-1 can be by manually rotating freely, the situation of observing rotation judges the equalising torque situation of erecting bed 6-1, regulate balancing weight lifting or the front and back adjusting knob of balance weight mechanism 7 to make the turning moment of balance weight mechanism 7 and the turning moment balance of LED light fixture 1 again, now erecting bed 6-1 can rest in any anglec of rotation, pushing back shaft coupling pull bar 6-6 makes shaft coupling 6-5 be connected with erecting bed 6-1 again, thereby control the rotation of the erecting bed 6-1 after counterweight by electric rotary table 6-3, rotation steadily, running accuracy is high.
The LED light fixture 1 of difformity specification is clamped on universal clamping platform 6, carry out counterweight by balance weight mechanism 7 and can realize LED light fixture 1 and in test process, rotate steadily, and running accuracy is high.Use mobile platform 4 and hoistable platform 5 to adjust the position of optical fiber 2, and on the fiber fixed seat 3 of fixed fiber 2, there is light hurdle structure, other LED or the impact of parasitic light on tested LED spectra collection in LED light fixture 1 are eliminated, thereby can obtain rapidly and accurately the spectrum of each LED in LED light fixture 1, and then realize the junction temperature of the each LED of accurate acquisition.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (9)

1.LED light fixture junction temperature measurement device, is characterized in that: comprise optical fiber (2), fiber fixed seat (3), travel mechanism (4), elevating mechanism (5), universal clamping platform (6), balance weight mechanism (7) and framework (8); Described optical fiber (2) is provided with multiple, and each optical fiber (2) is fixed in travel mechanism (4) by a fiber fixed seat (3); Described travel mechanism (4) is arranged on elevating mechanism (5); Described LED light fixture (1) is arranged on universal clamping platform (6); Described balance weight mechanism (7) is fixed on the bottom of universal clamping platform (6); Described elevating mechanism (5) and universal clamping platform (6) are installed on framework (8).
2. LED light fixture junction temperature measurement device according to claim 1, is characterized in that: described fiber fixed seat (3) is provided with light hurdle structure.
3. LED light fixture junction temperature measurement device according to claim 1, is characterized in that: described travel mechanism (4) comprises horizontal mobile device (4-1), longitudinal moving device (4-2), horizontal hand adjustment device (4-3), longitudinal hand adjustment device (4-4) and mobile platform (4-5); Described horizontal mobile device (4-1) is laterally slidably connected with mobile platform (4-5), and longitudinal moving device (4-2) is connected with horizontal mobile device (4-1) longitudinal sliding motion; Described horizontal hand adjustment device (4-3) and longitudinally hand adjustment device (4-4) are equipped with multiple, multiple horizontal hand adjustment devices (4-3) are all laterally slidably connected with longitudinal moving device (4-2), and each longitudinal hand adjustment device (4-4) is all connected with a horizontal hand adjustment device (4-3) longitudinal sliding motion; Described each optical fiber (2) is fixed on a longitudinal hand adjustment device (4-4) by a fiber fixed seat (3); Described mobile platform (4-5) is arranged on elevating mechanism (5).
4. LED light fixture junction temperature measurement device according to claim 3, is characterized in that: described horizontal mobile device (4-1) and longitudinal moving device (4-2) move by driven by servomotor.
5. LED light fixture junction temperature measurement device according to claim 3, is characterized in that: on described horizontal hand adjustment device (4-3) and longitudinal hand adjustment device (4-4), be equipped with rule.
6. LED light fixture junction temperature measurement device according to claim 1, is characterized in that: described elevating mechanism (5) comprises guide pillar (5-1), motor (5-2), drive link (5-3) and control knob (5-4); It is upper that described travel mechanism (4) is arranged on drive link (5-3), and guide pillar (5-1) is travel mechanism (4) guiding; Described motor (5-2) rotating drives drive link (5-3) to drive travel mechanism (4) to carry out lifting; Described control knob (5-4) is controlled motor (5-2) and is opened and closed.
7. LED light fixture junction temperature measurement device according to claim 1, is characterized in that: described universal clamping platform (6) comprises erecting bed (6-1), fixture (6-2), electric rotary table (6-3), bearing seat (6-4), shaft coupling (6-5) and shaft coupling pull bar (6-6); It is upper that described LED light fixture (1) is fixed on erecting bed (6-1) by fixture (6-2), and balance weight mechanism (7) is fixed on the bottom of erecting bed (6-1); Described erecting bed (6-1) is rotationally connected with bearing seat (6-4), and is connected with electric rotary table (6-3) by shaft coupling (6-5); Described shaft coupling pull bar (6-6) is controlled shaft coupling (6-5) and being connected of erecting bed (6-1), separation.
8. LED light fixture junction temperature measurement device according to claim 7, is characterized in that: the erecting bed (6-1) of described universal clamping platform (6) can pass through the LED light fixture (1) of fixture (6-2) installation different size.
9. LED light fixture junction temperature measurement device according to claim 1, is characterized in that: described balance weight mechanism (7) regulates button before and after comprising balancing weight, balancing weight lift adjustment button and balancing weight; Described balancing weight is provided with four kinds, is respectively 1KG, 2KG, 4KG and 5KG, and four kinds of balancing weights can combination in any use; The turning moment of described balance weight mechanism (7) is by regulating button to regulate before and after balancing weight lift adjustment button and/or balancing weight.
CN201110307991.4A 2011-10-11 2011-10-11 Junction temperature measuring device for LED (Light Emitting Diode) lamp Active CN103048060B (en)

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CN103267588B (en) * 2013-06-05 2015-04-01 常州工学院 Junction temperature testing method based on temperature variation of LED (light-emitting diode) relative spectrum
CN107607193A (en) * 2017-10-13 2018-01-19 中节能晶和照明有限公司 A kind of distribution photometer c γ test fixtures
CN108414915B (en) * 2018-06-13 2020-12-08 苏州晶品新材料股份有限公司 LED light source nondestructive real-time chip distinguishable measuring device
CN111939831A (en) * 2020-07-24 2020-11-17 盐城鼎恒机械有限公司 Automatic feeding device for paint line with anti-blocking and anti-cracking functions

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Effective date of registration: 20181204

Address after: Room 111, Building A1, 999 Gaolang East Road, Wuxi City, Jiangsu Province, 214000

Patentee after: ZHONGKE KELONG OPTICAL INSTR EQUIPMENT WUXI Co.,Ltd.

Address before: 213164 South Building, Huiyan Building, Changzhou Science and Education City, No. 801 Changwu Middle Road, Changzhou City, Jiangsu Province

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