Search

CN-121995266-A - Lamp heat radiation performance detection system and method

CN121995266ACN 121995266 ACN121995266 ACN 121995266ACN-121995266-A

Abstract

The invention discloses a lamp heat dissipation performance detection system and a lamp heat dissipation performance detection method, which relate to the technical field of lamp detection and are technically characterized by comprising a lamp heat dissipation performance detection system and a lamp heat dissipation performance detection method, wherein the lamp heat dissipation performance detection system comprises a rack, a lamp positioning component and a detection component; starting the lamp to be tested, enabling the lamp to be tested to work normally for a period of time, then randomly detecting the temperature of any position on the surface of the lamp to be tested through a temperature sensor, displaying and recording the temperature value through a display screen of a controller, and judging the heat dissipation performance of the lamp according to the average temperature. The method and the device have the technical effects that the surface temperature of the lamp to be detected can be randomly detected, so that multiple groups of data can be obtained and then averaged, and the detection result is more credible.

Inventors

  • ZHU JIANWEI
  • SHENG HONGTAO
  • HUANG WEI

Assignees

  • 帕恩检测技术(杭州)有限公司

Dates

Publication Date
20260508
Application Date
20260212

Claims (10)

  1. 1. The lamp heat radiation performance detection system comprises a frame (1), a lamp positioning assembly (2) and a detection assembly (3), and is characterized in that the frame (1) comprises a base (11) and a U-shaped frame (12) fixed on the base (11), the lamp positioning assembly (2) comprises a supporting seat (21) fixedly installed on the base (11), a supporting plate (22) is slidably installed in the supporting seat (21), two symmetrically distributed positioning clamping blocks (23) are slidably installed at the top of the supporting plate (22), guide blocks (24) are fixedly connected to two ends of each positioning clamping block (23), guide grooves (25) which are obliquely arranged are formed in two side walls of the supporting seat (21), and the guide blocks (24) slide in the guide grooves (25); The detection assembly (3) comprises a first air cylinder (31) fixedly mounted at the top of the U-shaped frame (12), the lower end of the first air cylinder (31) is fixedly connected with a connecting plate (32), the bottom of the connecting plate (32) is fixedly connected with a frame (33), the bottoms of the two sides of the frame (33) are fixedly connected with a collision plate (331), a moving frame (34) is slidably arranged at the bottom of the frame (33), a moving block (35) is slidably mounted at the bottom of the moving frame (34), a second air cylinder (36) is fixedly mounted at the bottom of the moving block (35), a heat insulation plate (37) is fixedly connected with the lower end of the second air cylinder (36), a temperature sensor (38) is mounted at the bottom of the heat insulation plate (37), and a driving assembly (39) for driving the moving frame (34) and the moving block (35) to move is arranged on the frame (33).
  2. 2. The lamp heat radiation performance detection system according to claim 1, wherein vertical sliding grooves (26) are formed in the other two side walls of the supporting seat (21), vertical sliding blocks (27) are fixedly connected to the two sides of the supporting plate (22), and the vertical sliding blocks (27) are slidably connected in the vertical sliding grooves (26).
  3. 3. The lamp heat radiation performance detection system according to claim 1, wherein a transverse sliding groove (28) is formed in the top of the supporting plate (22), a transverse sliding block (29) is fixedly connected to the bottom of the positioning clamping block (23), and the transverse sliding block (29) is slidably connected in the transverse sliding groove (28).
  4. 4. The lamp heat radiation performance detection system according to claim 1, wherein a flexible pressure sensor (210) is arranged on the clamping surface of the positioning clamping block (23).
  5. 5. The lamp heat radiation performance detection system according to claim 1, wherein a plurality of springs (211) distributed in a matrix are fixedly connected to the inner bottom wall of the supporting seat (21), and the upper ends of the springs (211) are abutted against the supporting plate (22).
  6. 6. The lamp heat radiation performance detection system according to claim 4, wherein the driving assembly (39) comprises a transverse screw rod (391) rotatably installed in the frame (33) and a motor (392) for driving the transverse screw rod (391) to rotate, a screw sleeve (393) is connected to the transverse screw rod (391) in a threaded mode, and the screw sleeve (393) is fixedly connected to the top of the movable frame (34).
  7. 7. The lamp heat radiation performance detection system as set forth in claim 6, wherein the driving assembly (39) further comprises a transverse guide rod (394) fixedly installed in the frame (33), a guide sleeve (395) is sleeved on the transverse guide rod (394) in a sliding manner, and the guide sleeve (395) is fixedly connected to the top of the movable frame (34).
  8. 8. The lamp heat radiation performance detection system according to claim 6, wherein the driving assembly (39) further comprises a reciprocating screw (396) rotatably mounted at the bottom of the moving frame (34) and a gear (397) fixedly connected to one end of the reciprocating screw (396), a toothed plate (398) is fixedly connected to one side of the frame (33), the gear (397) is meshed with the bottom of the toothed plate (398), and the moving block (35) is sleeved on the reciprocating screw (396) and is in threaded fit with the reciprocating screw (396).
  9. 9. The lamp heat radiation performance detection system according to claim 6, wherein a controller (13) is fixedly arranged on one side of the U-shaped frame (12), and the first air cylinder (31), the second air cylinder (36), the temperature sensor (38), the flexible pressure sensor (210) and the motor (392) are electrically connected with the controller (13).
  10. 10. A method for detecting heat dissipation performance of a lamp, based on the system for detecting heat dissipation performance of a lamp as claimed in any one of claims 1 to 9, comprising the steps of: S1, placing a lamp to be tested on a supporting plate (22), controlling a first air cylinder (31) to start and stretch through a controller (13), enabling the first air cylinder (31) to drive a frame (33) to descend through a connecting plate (32), enabling the supporting plate (22) to be stressed to descend when the lower ends of abutting plates (331) on two sides of the frame (33) abut against the supporting plate (22), and enabling two positioning clamping blocks (23) to slide along a guide groove (25) and a transverse sliding groove (28) and slide along the transverse sliding groove (28) simultaneously due to the fact that the positioning clamping blocks (23) are guided in two directions simultaneously, so that the lamp to be tested on the supporting plate (22) is clamped and positioned; S2, the flexible pressure sensor (210) feeds back the detected pressure signal to the controller (13) in real time, when the pressure signal fed back by the flexible pressure sensor (210) reaches a certain value, the positioning clamp block (23) is indicated to clamp the lamp to be tested, and at the moment, the controller (13) controls the first air cylinder (31) to stop; s3, starting a lamp to be tested, enabling the lamp to be tested to work normally for a period of time, controlling a motor (392) to work through a controller (13), enabling the motor (392) to drive a transverse screw (391) to rotate, enabling a screw sleeve (393) to drive the transverse screw (391) to slide, driving a moving frame (34) to slide transversely along a transverse guide rod (394) through the screw sleeve (393), enabling the moving frame (34) to drive a gear (397) to roll along a toothed plate (398) when the moving frame (34) moves, enabling the gear (397) to rotate through rotation of the gear (397) to drive a reciprocating screw (396) to rotate, enabling a moving block (35) to longitudinally reciprocate through the reciprocating screw (396), enabling a temperature sensor (38) to freely move above the lamp to be tested, enabling the second air cylinder (36) to start and stretch when the temperature sensor (38) randomly moves to any position, enabling the second air cylinder (36) to drive the temperature sensor (38) to contact the surface of the lamp to be tested, and therefore the effect of random detection of any position of the surface of the lamp to be tested is achieved; S4, temperature signals detected by a temperature sensor (38) are fed back to the controller (13), temperature values are displayed and recorded through a display screen of the controller (13), after the temperatures of a plurality of positions on the surface of the lamp to be detected are randomly detected, a temperature curve is drawn through the controller (13), an average value is obtained, and the heat dissipation performance of the lamp is judged according to the average temperature.

Description

Lamp heat radiation performance detection system and method Technical Field The invention relates to the technical field of lamp detection, in particular to a lamp heat dissipation performance detection system and method. Background Along with the rapid development of solid-state lighting technology, the LED lamp has been widely applied to the fields of commercial lighting, industrial lighting, road lighting, intelligent household lighting and the like by virtue of the remarkable advantages of high light efficiency, long service life, energy conservation, environmental protection and the like. However, the LED chip is extremely sensitive to temperature, and its light efficiency, color temperature, color rendering index and lifetime are all closely related to junction temperature. It is counted that the lifetime of the LED will decrease by about 50% every 10 ℃ rise in the junction temperature of the LED, and the light decay rate increases exponentially. Therefore, accurate assessment of the heat dissipation performance of the lamp becomes a key technical link for ensuring the product quality and prolonging the service life. In a conventional detection method, a fixture is used to fix a lamp to be detected, and then a plurality of thermocouples or temperature sensors are fixedly arranged on the surface of the lamp for temperature monitoring. Because the position of the sensor arrangement is fixed, the surface temperature distribution of the lamp is difficult to comprehensively reflect, and the accuracy and the representativeness of the detection result are insufficient. Therefore, a system and a method for detecting the heat dissipation performance of a lamp are now provided. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a lamp heat radiation performance detection system and method, which solve the problems that the traditional lamp heat radiation performance detection method is difficult to comprehensively reflect the temperature distribution of the surface of a lamp, and the accuracy and the representativeness of the detection result are insufficient. (II) technical scheme In order to achieve the above purpose, the present invention provides the following technical solutions: The invention provides a lamp heat radiation performance detection system which comprises a frame, a lamp positioning assembly and a detection assembly, wherein the frame comprises a base and a U-shaped frame fixed on the base, the lamp positioning assembly comprises a supporting seat fixedly arranged on the base, a supporting plate is slidably arranged in the supporting seat, two symmetrically distributed positioning clamping blocks are slidably arranged at the top of the supporting plate, guide blocks are fixedly connected to two ends of each positioning clamping block, guide grooves which are obliquely arranged are formed in two side walls of the supporting seat, and the guide blocks slide in the guide grooves; The detection assembly comprises a first air cylinder fixedly mounted at the top of the U-shaped frame, the lower end of the first air cylinder is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a frame, the bottoms of two sides of the frame are fixedly connected with abutting plates, the bottom of the frame is provided with a moving frame in a sliding manner, the bottom of the moving frame is provided with a moving block in a sliding manner, the bottom of the moving block is fixedly provided with a second air cylinder, the lower end of the second air cylinder is fixedly connected with a heat insulation plate, the bottom of the heat insulation plate is provided with a temperature sensor, and the frame is provided with a driving assembly for driving the moving frame and the moving block to move. Through adopting above-mentioned technical scheme, when detecting, put the lamps and lanterns that await measuring in the backup pad, carry out the centre gripping location to the lamps and lanterns that await measuring through lamps and lanterns locating component, open the lamps and lanterns that await measuring, make lamps and lanterns normal operating for a period that await measuring, drive through drive assembly and remove frame and movable block and remove, make temperature sensor free motion in lamps and lanterns top that await measuring, when temperature sensor moves to arbitrary position at random, accessible second cylinder and extension, make the second cylinder drive temperature sensor contact lamps and lanterns surface that await measuring, thereby the temperature of the arbitrary position on lamps and lanterns surface that await measuring detects, reach the effect of random detection. Optionally, vertical sliding grooves are formed in the other two side walls of the supporting seat, vertical sliding blocks are fixedly connected to the two sides of the supporting plate, and the vertical sli