CN216559649U

CN216559649U - Three-primary-color LED product testing equipment

Info

Publication number: CN216559649U
Application number: CN202220109789.4U
Authority: CN
Inventors: 季晓锋; 袁卫新; 李佳
Original assignee: Shanghai Shuozhan Auto Electronics Co ltd
Current assignee: Shanghai Shuozhan Auto Electronics Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-05-17
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a tricolor LED product testing device, which has the technical scheme that: the optical tester comprises a rack, wherein a cross beam is fixed on the rack, the bottom of the cross beam is connected with a sliding seat in a sliding manner, a sliding block is fixed at the top of the sliding seat, a sliding groove for the sliding block to slide horizontally is formed in the cross beam, a screw rod is connected in the sliding block in an internal thread manner and is rotationally connected in the cross beam, a first servo motor for driving the sliding seat to slide is arranged at the end part of the sliding seat, a first fixed rod is fixed at the bottom of the sliding seat, a second fixed rod is detachably connected at the end part of the first fixed rod, an optical tester is fixed at the end part of the second fixed rod, a driving roller and a driven roller are rotationally connected on the rack, and a transmission belt is jointly connected with the outer parts of the driving roller and the driven roller in a transmission manner; the three-primary-color LED product testing equipment has the advantages of high working efficiency and high automation degree.

Description

Three-primary-color LED product testing equipment

Technical Field

The utility model relates to the field of LED product testing, in particular to a tricolor LED product testing device.

Background

The working principle of the tricolor LED is as follows: an led (light emitting diode), which is a solid semiconductor device capable of converting electrical energy into visible light, can directly convert electricity into light. The heart of the LED is a semiconductor wafer, one end of the wafer is attached to a support, the other end of the wafer is a cathode, and the other end of the wafer is connected with an anode of a power supply, so that the whole wafer is packaged by epoxy resin. The semiconductor wafer is composed of two parts, one of which is a P-type semiconductor in which holes predominate and the other of which is an N-type semiconductor in which electrons predominate. Because the three primary colors of red, green and blue can be mixed to generate most colors in nature, the LEDs with three colors of red, green and blue are installed in the LED lamp with the simplest color change, for example, the red lamp and the blue lamp are purple when lit together, and yellow when lit together, if the three LEDs are lit simultaneously, it will generate white light …, thus obtaining seven colors, if the three LEDs are lit simultaneously, then each color of red, green and blue is divided into 256 gray levels (it can be understood that the colors are divided into 256 brightness levels from dark to light), thus forming so-called full color (the LED light source can utilize the principle of the three primary colors of red, green and blue, and the three colors have 256 gray levels and can be arbitrarily mixed under the control of computer technology, thus generating 256 × 256 × 256 × 256 — 16777216 colors).

The key to the operation of the tricolor LED is how to accurately control the gray scales of the red, green and blue to mix the required color, and in order to achieve the purpose, an integrated circuit can be added in the product, and the gray scales of the red, green and blue can be accurately controlled by a pulse width modulation mode to realize color change.

At present, whether the tricolor LED works normally needs to be judged and identified by naked eyes of personnel, so that the working efficiency is low, misjudgment is easily caused due to personnel reasons, and the product with poor function flows out and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the problems mentioned in the background, it is an object of the present invention to provide a three primary color LED production test apparatus to solve the problems mentioned in the background.

The technical purpose of the utility model is realized by the following technical scheme:

a tricolor LED product testing device comprises a frame, a beam is fixed on the frame, the bottom of the cross beam is connected with a sliding seat in a sliding way, the top of the sliding seat is fixed with a sliding block, a sliding groove for the sliding block to slide horizontally is arranged in the cross beam, the sliding block is internally threaded with a screw rod which is rotationally connected in the cross beam, the end part of the sliding seat is provided with a first servo motor which drives the sliding seat to slide, a first fixed rod is fixed at the bottom of the sliding seat, a second fixed rod is detachably connected at the end part of the first fixed rod, an optical tester is fixed at the end part of the second fixing rod, a driving roller and a driven roller are rotationally connected to the frame, the driving roller with the outside common transmission of driven voller is connected with the transmission band, be fixed with the drive in the frame the driving roller pivoted second servo motor.

Through adopting above-mentioned technical scheme, this three primary colors LED product test equipment has work efficiency height, advantage that degree of automation is high, when using this three primary colors LED product test equipment to test, whether adopt optical tester test lamp colour to be qualified, and usable first servo motor drives the screw rod and rotates, it slides to drive the slider, it slides to drive the sliding seat, drive first dead lever, second dead lever and optical tester adjustment position, and usable second servo motor drives the drive roll, the driven voller rotates, it transmits to drive the three primary colors LED product that the transmission band drove the awaiting measuring, and work efficiency is improved.

Preferably, the optical tester comprises an optical fiber probe, the optical fiber probe is electrically connected with a single chip microcomputer, the single chip microcomputer is electrically connected with a demodulator, the single chip microcomputer is electrically connected with a sensor, and the sensor is connected with a computer through a measurement control circuit.

By adopting the technical scheme, the optical tester adopts the optical fiber probe to send all the light sources of the lighted LEDs into the modulation area through the incident optical fiber, the light interacts with the external measured parameters in the modulation area to ensure the optical properties of the light, such as intensity, wavelength, frequency, phase, and polarization state, etc., to be changed into modulated signal light, then sent into a light detector and a demodulator via an emergent optical fiber to obtain the measured parameters, and then sent to the SCADA-LED software in a computer for processing and displaying after being processed by a single chip microcomputer, the SCADA-LED software processes and judges the three primary color information of the tested LED, and can utilize the red, green and blue three primary color principle according to the characteristics of the tested product, after the LED is lighted, the optical fiber probe is used for transmitting a light source, the color is processed through SCADA-LED software, whether the LED works normally or not is automatically judged, and the product requirements are met.

Preferably, the sliding block is a dovetail block, and the sliding groove is a dovetail groove matched with the sliding block.

By adopting the technical scheme, when the slide block adopts the dovetail block, the slide block has the advantage of stable sliding.

Preferably, a reducer is connected to an end of a motor shaft of the first servo motor, and an output shaft of the reducer is connected to the screw.

Through adopting above-mentioned technical scheme, the reduction gear can reduce first servo motor's output speed, improves the pivoted stationarity of screw rod.

Preferably, the screw rod is rotatably connected to the cross beam through a deep groove ball bearing.

Through adopting above-mentioned technical scheme, deep groove ball bearing can improve screw rod pivoted stability.

Preferably, the first fixing rod and the second fixing rod are fixedly connected through a flange.

Through adopting above-mentioned technical scheme, utilize the flange to make things convenient for the connection of first dead lever and second dead lever.

Preferably, a baffle is fixed on the frame.

Through adopting above-mentioned technical scheme, the setting of baffle can prevent the interference of external light.

Preferably, a plurality of clamps for fixing the three-primary-color LED lamp are fixed on the surface of the conveyor belt.

Through adopting above-mentioned technical scheme, the setting of anchor clamps can conveniently be fixed the tricolor LED lamp that awaits measuring above the transmission belt.

In summary, the utility model mainly has the following beneficial effects:

this three primary colors LED product test equipment has work efficiency height, advantage that degree of automation is high, when using this three primary colors LED product test equipment to test, adopt the optical test appearance to test whether the lamp colour is qualified, and usable first servo motor drives the screw rod and rotates, it slides to drive the slider, it slides to drive the sliding seat, drive first dead lever, second dead lever and optical test appearance adjusting position, and usable second servo motor drives the drive roll, the driven voller rotates, it transmits to drive the transmission band to drive the three primary colors LED product that awaits measuring, work efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural cross-sectional view of the present invention;

fig. 3 is a system block diagram of the present invention.

Reference numerals: 1. a frame; 2. a cross beam; 3. a sliding seat; 4. a slider; 5. a chute; 6. a screw; 7. a first servo motor; 8. a first fixing lever; 9. a second fixing bar; 10. an optical tester; 11. a drive roll; 12. a driven roller; 13. a conveyor belt; 14. a second servo motor; 15. a speed reducer; 16. and (4) a flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1 to 3, a tricolor LED product testing device, which comprises a frame 1, a cross beam 2 is fixed on the frame 1, the bottom of the cross beam 2 is connected with a sliding seat 3 in a sliding manner, a sliding block 4 is fixed at the top of the sliding seat 3, a sliding groove 5 for the sliding block 4 to slide horizontally is formed in the cross beam 2, a screw rod 6 is connected in the sliding block 4 in an internal thread manner, the screw rod 6 is rotatably connected in the cross beam 2, a first servo motor 7 for driving the sliding seat 3 to slide is arranged at the end of the sliding seat 3, a first fixing rod 8 is fixed at the bottom of the sliding seat 3, a second fixing rod 9 is detachably connected at the end of the first fixing rod 8, an optical tester 10 is fixed at the end of the second fixing rod 9, a driving roller 11 and a driven roller 12 are rotatably connected on the frame 1, a transmission belt 13 is jointly connected between the outside of the driving roller 11 and the driven roller 12, and a second servo motor 14 for driving the driving roller 11 to rotate is fixed on the frame 1.

Referring to fig. 1 to 3, the tricolor LED product testing device has the advantages of high working efficiency and high automation degree, when the tricolor LED product testing device is used for testing, whether the lamp color is qualified is tested by adopting the optical tester 10, the screw rod 6 is driven to rotate by the first servo motor 7, the sliding block 4 is driven to slide, the sliding seat 3 is driven to slide, the first fixing rod 8, the second fixing rod 9 and the optical tester 10 are driven to adjust the position, the driving roller 11 and the driven roller 12 are driven to rotate by the second servo motor 14, the transmission belt 13 is driven to drive the tricolor LED product to be tested to be transmitted, and the working efficiency is improved.

Referring to fig. 1 to 3, wherein the optical tester 10 includes an optical fiber probe electrically connected to a single chip microcomputer, the single chip microcomputer electrically connected to a demodulator, the single chip microcomputer electrically connected to a sensor, the sensor connected to a computer through a measurement control circuit, the optical tester 10 uses the optical fiber probe to send all the light sources of the lit LEDs into a modulation region through an incident optical fiber, the light interacts with the external measured parameters in the modulation region to change the optical properties of the light, such as intensity, wavelength, frequency, phase, and polarization state, into modulated signal light, the modulated signal light is sent to the optical detector and the demodulator through an emergent optical fiber to obtain the measured parameters, the result is sent to the computer through the single chip microcomputer to be processed and displayed by SCADA-LED software, the SCADA-LED software processes and judges the three primary color information of the tested LEDs, and can be based on the characteristics of the tested product, the principle of red, green and blue three primary colors is utilized, after the LED is lightened, the optical fiber probe is utilized to transmit a light source, the color is processed through SCADA-LED software, whether the LED works normally or not is automatically judged, and the product requirements are met.

Referring to fig. 1 and 2, the sliding block 4 is a dovetail block, and the sliding groove 5 is a dovetail groove matched with the sliding block 4, and when the sliding block 4 is the dovetail block, the sliding block has the advantage of stable sliding; wherein the end part of the motor shaft of the first servo motor 7 is connected with a speed reducer 15, the output shaft of the speed reducer 15 is connected with the screw 6, and the speed reducer 15 can reduce the output speed of the first servo motor 7 and improve the rotating stability of the screw 6.

Referring to fig. 1 and 2, the screw 6 is rotatably connected to the cross beam 2 by a deep groove ball bearing, which can improve the stability of the rotation of the screw 6; the first fixing rod 8 and the second fixing rod 9 are fixedly connected through the flange 16, and the flange 16 can facilitate the connection of the first fixing rod 8 and the second fixing rod 9.

Referring to fig. 1 and 2, a baffle is fixed on a frame 1, and the baffle is arranged to prevent interference of external light; wherein a plurality of clamps for fixing the tricolor LED lamps are fixed on the surface of the transmission belt 13, and the arrangement of the clamps can conveniently fix the tricolor LED lamps to be detected above the transmission belt 13.

The test content and data of the device are as follows:

1. after the test equipment is set up by using the related equipment (as shown in the following table), the power supply of the test equipment is started, the SCADA-LED test software in the computer is started, the corresponding test product is selected in the product selection frame, and the test is ready to be started.

2. And putting a product to be tested into the testing equipment, and starting the equipment to start testing. At the moment, the equipment automatically lights the tricolor LEDs to be tested, the light of each LED to be tested penetrates into the fiber core through the optical fiber probe, and when the light reaches the interface surface of the cladding, the light is reflected back to the fiber core layer due to the total internal reflection of the light. Thus, by constant reflection, the light travels forward along the core with little attenuation. The optical fiber type sensor guides light emitted by an LED to be detected to a detection point by using an optical fiber, and then guides a detected optical signal to a tester by using an optical fiber.

3 each LED to be tested corresponds to an optical sensor which can convert and process the color data of the LED to be tested in the system by taking a single chip microcomputer as a core and the received optical signals of the tricolor LEDs corresponding to the test bits, and finally, the color data are processed by SCADA-LED software and the test result is displayed

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tricolor LED product testing device comprises a frame (1), and is characterized in that: a cross beam (2) is fixed on the rack (1), the bottom of the cross beam (2) is connected with a sliding seat (3) in a sliding manner, a sliding block (4) is fixed at the top of the sliding seat (3), a sliding chute (5) for the sliding block (4) to slide horizontally is formed in the cross beam (2), a screw rod (6) is connected with the sliding block (4) in an internal thread manner, the screw rod (6) is rotatably connected in the cross beam (2), a first servo motor (7) for driving the sliding seat (3) to slide is arranged at the end part of the sliding seat (3), a first fixing rod (8) is fixed at the bottom of the sliding seat (3), a second fixing rod (9) is detachably connected at the end part of the first fixing rod (8), an optical tester (10) is fixed at the end part of the second fixing rod (9), a driving roller (11) and a driven roller (12) are rotatably connected on the rack (1), the driving roller (11) and the driven roller (12) are connected with a transmission belt (13) in a transmission mode, and a second servo motor (14) for driving the driving roller (11) to rotate is fixed on the rack (1).

2. The apparatus for testing a tricolor LED product according to claim 1, wherein: the optical tester (10) comprises an optical fiber probe, the optical fiber probe is electrically connected with a single chip microcomputer, the single chip microcomputer is electrically connected with a demodulator, the single chip microcomputer is electrically connected with a sensor, and the sensor is connected with a computer through a measurement control circuit.

3. The apparatus for testing a tricolor LED product according to claim 1, wherein: the sliding block (4) is a dovetail block, and the sliding groove (5) is a dovetail groove matched with the sliding block (4).

4. The apparatus for testing a tricolor LED product according to claim 1, wherein: the end part of a motor shaft of the first servo motor (7) is connected with a speed reducer (15), and an output shaft of the speed reducer (15) is connected with the screw (6).

5. The apparatus for testing a tricolor LED product according to claim 1, wherein: the screw rod (6) is rotatably connected to the cross beam (2) through a deep groove ball bearing.

6. The apparatus for testing a tricolor LED product according to claim 1, wherein: the first fixing rod (8) and the second fixing rod (9) are fixedly connected through a flange (16).

7. The apparatus for testing a tricolor LED product according to claim 1, wherein: and a baffle is fixed on the frame (1).

8. The apparatus for testing a tricolor LED product according to claim 1, wherein: and a plurality of clamps for fixing the three-primary-color LED lamp are fixed on the surface of the transmission belt (13).