KR101488488B1 - LED module testing device - Google Patents

Abstract

The present invention relates to an LED module testing apparatus, and more particularly, to an LED module testing apparatus in which a plurality of LED modules to be tested form one row parallel to a width direction, a plurality of the rows are arranged along a longitudinal direction, A test socket housing provided below the guide plate, a probe pin provided in the test socket housing to test one LED module row of the strip, A pusher provided on the upper side of the guide plate for connecting the corresponding LED module to the corresponding probe pin by pushing the strip for testing downward, and a pusher for receiving light emitted from the LED module connected to the probe pin, And light receiving means for measuring the illuminance.
According to the present invention, each time the pusher presses a strip having a plurality of LED modules arranged in a row, the corresponding LED module rows or a plurality of LED module rows are measured at the same time, As the strip is automatically transported by a predetermined length, each LED module row is sequentially transferred to a position where it can be connected to the probe, thereby reducing the test time and improving the working efficiency.

Description

LED module testing device < RTI ID = 0.0 >

The present invention relates to a test apparatus, and more particularly, to a test apparatus that manufactures a plurality of LED modules in which a plurality of LED modules are arrayed and tests a plurality of LED modules at the same time, The present invention relates to an LED module testing apparatus capable of improving work efficiency by further shortening a working time by automatically transferring a workpiece to a position.

2. Description of the Related Art Generally, an LED (Light Emitting Diode) is a kind of light emitting device using a semiconductor that converts electricity into light, and is also referred to as a light emitting diode.

Such an LED is smaller than a conventional light source, has a long life, consumes less power, has a high-speed response, and can be used as a display lamp for various electronic devices such as a display device of an automobile instrument, a light source for optical communication, , Backlight and so on.

LEDs are manufactured through EPI, chip fabrication, and package, which are packaged and then subjected to a test process.

In this test process, LEDs that are not normally operated are excluded, while LEDs that are normally operated are classified according to their performance and shipped.

Conventionally, when testing the LEDs at room temperature, the LEDs were tested at room temperature. The LED packages were sorted one by one according to the internal resistance.

However, in the conventional method of testing one by one, it takes a long time and the process of separating each ADDI module from the strip is required, which increases the cost.

Accordingly, there is an urgent need to develop a technique for automatically transferring a strip, which is simple in structure, does not use a power source to minimize cost, shortens inspection time, and improves inspection efficiency It is true.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an LED module in which a plurality of LED modules to be tested form one row parallel to the width direction, A test socket housing provided with a probe pin for testing an LED module is provided on the lower side of the guide plate and the strip and the guide plate are pressurized by the test socket housing, And pushing means for connecting the LED module to the probe pin, and feeding means for automatically feeding the strip by a predetermined distance by lifting the pusher, so that each LED module row is transferred to a position where it can be sequentially connected to the probe, Can save time and improve work efficiency It is an object to provide an LED module test device.

According to an aspect of the present invention, there is provided a liquid crystal display device including a plurality of LED modules to be tested, the plurality of LED modules being arranged in parallel to each other in the width direction, the plurality of LED modules arranged in the longitudinal direction, A test socket housing provided below the guide plate; a probe pin provided in the test socket housing to test one LED module row of the strip; A pusher for connecting the corresponding LED module to the corresponding probe pin by pushing the strip for testing downward and a light receiving unit for receiving the light emitted from the LED module connected to the probe pin and measuring the illuminance of each LED module .

Preferably, the light receiving means includes an integrating sphere for refracting and condensing the light emitted from each of the LED modules in a hemispherical shape, a light receiving portion positioned at the inner center point of the integrating sphere for receiving light emitted from each of the LED modules, And comparing the illuminance of each of the received LED modules with a reference illuminance to discriminate whether the corresponding LED module is normal or not.

When the pusher is moved, the pusher is moved in the same direction as the guide plate while moving along the feeding direction of the strip. When the pusher is pressed downward by the pusher moving downward, the strip is moved in a holding state, When the pressing force is released by the pusher moving upward after the test of the corresponding LED module, the conveying unit is further moved to a state in which the strip is not held and does not convey the strip.

The conveying means may include a fixed block provided on one side surface of the guide plate and having a first conveying hole formed at an upper end thereof in parallel with a conveying direction of the strip, A conveying block which is moved in the same direction as the longitudinal direction of the first conveying hole and one end of which is rotatable in the vertical direction at the rear end of the conveying block, And the guide protrusion is inserted into the guide hole as the other end of the pusher is pushed downward when the pusher is lowered, a driving block rotatably mounted on the fixed block, Gears and one end thereof are rotatable with respect to the fixed block, a gear tooth is formed along the outer circumferential surface thereof, and the other end thereof is engaged with the first feed A second transfer hole formed to be inserted and moved so as to allow a transfer protrusion moved along the hole to flow therethrough, the second transfer hole having a rotation bracket formed in a direction orthogonal to the first transfer hole, A driving gear for rotating the driving gear when the pusher is lifted, and a pushing member for moving the pusher moved downward as the pusher is moved upward, wherein the pushing force is transmitted to the one end of the bracket, A first base portion for holding the other end of the rotary block in a state rotated upward by a predetermined angle, and a second base portion for returning the transfer block moved by the rotational force of the driving gear rotated by the driving portion, Wherein the pusher is lowered to urge the guide plate and the strip downwardly, When the pusher is lifted, the other end of the rotary block is rotated upward by a predetermined angle to disengage the guide projection from the guide hole, and the drive unit is driven And the rotational force of the driving gear is transmitted to the rotating bracket through the connecting gear so that the second moving hole and the moving protrusion inserted in the first moving hole are moved along the first moving hole as the other end of the rotating bracket is rotated When the pusher is lowered, the pusher presses the other end of the rotary block downward to insert the guide protrusion into the guide hole, The strip and the guide plate are moved downward and the conveying block is moved by the second home position in the conveying direction of the strip And horizontally moves in the same direction and feeds the LED module row to be tested to the upper side of the probe as the strip is conveyed.

The first base portion is a coil spring, and is provided at one end of the rotation block.

The second base portion is a coil spring, and is provided at one end of the drive gear or the rotation bracket.

And the second in-situ portion is provided in the first conveyance hole to press the movable projection in the strip conveying direction with a compression spring.

The driving unit may include a driving bar protruding downward from the pusher and having a driving jaw formed at a lower end of the driving gear to engage with the engaging jaw, When the drive bar is moved upward, the driving bar is moved upward to rotate the driving jaw such that the driving jaw rotates to rotate the driving jaw so that the driving block moves, When the pusher is lowered, the drive bar is similarly moved downward and the drive gear is moved downward, and the drive gear is rotated in the reverse direction by the second home position portion, .

As described above, according to the LED module testing apparatus of the present invention, the LED module rows or the plurality of LED module rows are simultaneously measured whenever the strips of the plurality of LED modules are pressed down by the pushers It is possible to shorten the working time and to automatically transfer the strips by a predetermined length, so that each LED module row can be sequentially transferred to a position where it can be connected to the probe, thereby saving test time, It is a very useful and effective invention.

1 is a view showing an LED module testing apparatus according to the present invention,
2 is a view showing a light receiving means of an LED module testing apparatus according to the present invention,
3 is a view showing an operation state of the LED module testing apparatus according to the present invention,
Fig. 4 is a view showing the conveying means according to the present invention,
5 is a view showing an operating state of the conveying means according to the present invention,
6 is a view showing another embodiment of the second home position portion according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

It should be noted that the present invention is not limited to the scope of the present invention but is only illustrative and various modifications are possible within the scope of the present invention.

FIG. 1 is a view showing an LED module testing apparatus according to the present invention, FIG. 2 is a view illustrating a light receiving means of the LED module testing apparatus according to the present invention, FIG. FIG. 5 is a view showing an operating state of the conveying means according to the present invention, and FIG. 6 is a view showing the second home position according to the present invention. FIG. And Fig.

The LED module testing apparatus 10 includes a guide plate 100, a test socket housing 200, a probe pin 300, a pusher 400, and a light receiving unit 600.

The guide plate 100 includes a plurality of LED modules to be tested, one row parallel to the width direction, a plurality of rows arranged along the longitudinal direction, and a plurality of guide holes spaced apart from each other at regular intervals The strip 20 is mounted.

The test socket housing 200 is provided below the guide plate 100 and the probe pin 300 is provided in the test socket housing 200 to test one LED module row of the strip 20.

The pusher 400 is provided on the upper side of the guide plate 100 and presses the strip 20 for testing downward to connect the corresponding LED module to the corresponding probe pin 300.

The light receiving means 600 receives the light emitted from the LED module connected to the probe pin 300 and measures the illuminance of each LED module.

The operation of the LED module testing apparatus 10 will be described with reference to the operation of the LED module test apparatus 10. The operation of the LED module testing apparatus 10 will be described below.

Here, the strip 20 mounted on the guide plate 100 is also moved downward, and each of the eld diodes is connected to the probe pin 300 of the test socket housing 200.

Accordingly, the LED module emits light, and the diverged light is received by the light receiving unit 600, and the illuminance of each LED module is measured, thereby confirming whether or not the LED module is defective.

2, the light receiving unit 600 includes an integrating sphere 610, a light receiving unit 620, and a control unit 630.

The integrating sphere 610 refracts and concentrates the light emitted from each of the LED modules in a hemispherical shape, and the light receiving unit 620 is located at the inner center of the integrating sphere 610 and receives light emitted from each of the LED modules.

The control unit 630 compares the illuminance of each of the LED modules received by the light receiving unit 620 with reference illuminance to discriminate whether the corresponding LED module is normal or not.

The integrating sphere 610 of the light receiving means 600 collects the light of the plurality of LED modules forming the heat into the light receiving portion 620. The light receiving portion 620 receives the light of each LED module, The illuminance of the module is measured.

Of course, the light receiving unit 620 can measure the illuminance of the corresponding LED module even if the light emitted from each of the LED modules is partially overlapped.

At this time, the guide plate 100 is further provided with the conveying means 500 to move the strip 20 according to the position of the pusher 400.

When the pusher 400 is moved, the conveying unit 500 is moved along the conveying direction of the strip 20 while being moved in the same manner as the guide plate 100. The conveying unit 500 is pressed downward by the pusher 400, The strip 20 is moved while holding the strip 20 and the strip 20 is transported and when the pressing force is released by the pusher 400 moving upward after the test of the LED module, So that the strip 20 is not transported.

3, a strip 20 in which a plurality of LED module rows are arranged is mounted on a guide plate 100, and a plurality of strips of LED modules are arranged on the guide plate 100. As shown in FIG. 3, The pusher 400 is moved downward.

The pusher 400 moved downward moves the guide plate 100 on which the strip 20 is mounted to move downward to connect the LED module rows to the probe pins 300 to perform a test.

The test socket housing 200 includes a plurality of guide pins 210 to be inserted into the guide holes of the strip 20. As the guide plate 100 is moved downward, (20) to prevent the strip (20) from flowing during testing.

Here, the conveying means 500 moves the strip 20, which is placed on the guide plate 100, as the pusher 400 is lowered and raised.

4, and includes a fixed block 510, a conveying block 520, a rotating block 530, a driving gear 540, a rotating bracket 550, a connecting gear 560 , A driving unit 570, a first home position unit 580 and a second home position unit 590. [

The fixed block 510 is provided on one side of the guide plate 100 and has a first conveying hole 512 formed at an upper end thereof parallel to the conveying direction of the strip 20.

The transfer block 520 is formed with a transfer protrusion 522 which is inserted and moved to be able to flow in the first transfer hole 512 of the fixed block 510. The transfer protrusion 522 is formed in the same direction as the longitudinal direction of the first transfer hole 512 .

One end of the rotation block 530 is vertically rotatable at the rear end of the transfer block 520 and the other end of the rotation block 530 is formed with a guide protrusion 532 for insertion into the guide hole of the strip 20.

When the pusher 400 is lowered, the guide protrusion 532 is inserted into the guide hole of the strip 20 as the other end portion is pushed downward.

The driving gear 540 is rotatably mounted on the fixed block 510 and the rotating bracket 550 receives the rotational force of the driving gear 540 to move the transfer block 520.

One end of the rotation bracket 550 is rotatably mounted on the fixed block 510 and the other end of the rotation bracket 550 is moved along the first transfer hole 512 of the fixed block 510 A second transfer hole 552 is formed to be inserted and moved so that the protrusion 522 can flow. The second transfer hole 552 is formed in a direction orthogonal to the first transfer hole 512.

The connecting gear 560 is engaged with the gear teeth of the driving gear 540 and the rotating bracket 550 to transmit the rotational force of the driving gear 540 to one end of the rotating bracket 550, respectively.

The driving unit 570 is provided to rotate the driving gear 540 when the pusher 400 is lifted.

The first base portion 580 is provided to hold the other end of the rotation block 530 in a state rotated upward by a predetermined angle when the pressing force is released as the pusher 400 moved downward is moved upward .

The second in-situ part 590 is provided to return the moved transfer block 520 to which the rotational force of the driving gear 540 rotated by the driving part 570 is transmitted.

As shown in FIG. 5, the pusher 400 is lowered and the guide plate 100 and the strip 20 are pressed downward.

First, when the pusher 400 is lifted, the other end of the rotary block 530 is rotated upward by a first home position portion 580 so that the guide protrusion 532 is released from the guide hole At the same time, the driving unit 570 rotates the driving gear 540.

The rotating force of the driving gear 540 is transmitted to the rotating bracket 550 through the connecting gear 560 so that the second conveying hole 552 and the first conveying hole 512 The transfer block 520 and the rotary block 530 are horizontally moved in the direction opposite to the transfer direction of the strip 20 by moving the transfer protrusion 522 inserted in the first transfer hole 512 along the first transfer hole 512.

When the pusher 400 is lowered, the pusher 400 pushes the other end of the rotation block 530 downward to insert the guide protrusion 532 into the guide hole, and then the strip 20 and the guide plate 100 are moved downward and the transfer block 520 is horizontally moved in the same direction as the conveying direction of the strip 20 by the second home position portion 590. As the strip 20 is conveyed, And conveys the module row to the upper side of the probe pin 300.

Here, the driving unit 570 includes a latching jaw 572, a driving bar 574, and a driving jaw 576.

The driving jaw 572 protrudes from the driving gear 540 and the driving bar 574 protrudes downward from the pusher 400 and has a driving jaw 576 for engaging with the jaw 572 at the lower end thereof. Is formed.

When the pusher 400 is lifted up, the drive bar 574 is similarly moved upward so that the drive jaw 576 rotates the jaws 572 upward, The rotation block 540 is rotated to transmit the rotational force to move the transfer block 520.

At this time, the driving jaw 576 is positioned so as not to be released to the upper side of the engaging jaw 572.

In contrast, when the pusher 400 is lowered, the driving bar 574 is similarly moved downwardly and the driving jaw 576 is moved downward, so that the driving gear 540 is moved in the reverse direction by the second home position portion 590 The transfer block 520 is returned to its original position.

When the transfer block 520 is retracted, the strip 20 inserted with the guide protrusion 522 is also moved as the rotating block 530 is retracted downwardly by the pusher 400 .

The first base portion 580 is provided at one end of the rotation block 530 by a coil spring to maintain the other end of the rotation block 530 at a predetermined angle.

The second in-situ portion 590 is, in one embodiment, a coil spring, and is provided at one end of the driving gear 540 or the rotating bracket 550.

6, in another embodiment of the second in-situ portion 590, a compression spring is used to press the transfer protrusion 522 against the first transfer hole 512 to press the strip 20 in the transfer direction Respectively.

The second home position portion 590 is compressed by the moving protrusion 522 that moves together with the moving block 520 when the driving block 570 generates a rotational force and the moving block 520 is moved.

When the pusher 400 is moved upward to release the pressing force, the second base portion 590 is returned to the original position by the repulsive force and the moving protrusion 522 is moved in the feeding direction of the strip 20, 520).

The moving means 500 moves the strip 20 by a predetermined distance to inspect a plurality of LED modules, and it is also possible to inspect other strips having different LED module rows.

In other words, when the LED module has the same width as the moving distance of the strip moved by the moving means 500, the strip 20 is moved by the moving means 500 so as to inspect each LED module row, .

In addition, when the size of the LED module is small, the moving unit 500 moves the strip 20 by the same distance, and the light receiving unit 600 does not receive the light of one LED module row, The light of the heat can be received and examined.

In other words, the light receiving range of the light receiving means 600 is inspected at least twice for one LED module row beyond the range of the strip 20 which can be moved by the moving means 500 at one time.

Accordingly, it is possible to improve the accuracy and reliability by reducing and minimizing inspection errors that may possibly occur and improving the inspection rate.

In addition, since a plurality of LED module columns included in the script 20 can be measured at the same time, the working time can be shortened and the working efficiency can be improved.

10: test apparatus 20: strip
100: guide plate 200: test socket housing
300: probe pin 400: pusher
500: transfer means 510: fixed block
520: Feed block 530: Rotating block
540: drive gear 550: rotation bracket
560: connecting gear 570: driving part
580: first home position 590: second home position
600: light receiving means 610: integrating sphere
620: light receiving section 630:

Claims (8)

A plurality of LED modules to be tested are arranged in a row parallel to the width direction, a plurality of rows of the heat are arranged along the longitudinal direction, and a plurality of guide holes spaced at both sides of the guide plate, ;
A test socket housing provided below the guide plate;
A probe pin provided in the test socket housing to test one LED module row of the strip;
A pusher provided on the guide plate for connecting the corresponding LED module to the corresponding probe pin by pressing the strip for testing downward; And
And light receiving means for receiving the light emitted from the LED module connected to the probe pin and measuring the illuminance of each LED module,
When the pusher is moved, the pusher is moved in the same direction as the guide plate while being moved along the feeding direction of the strip. When the pusher is pressed downward by the pusher moving downward, the strip is moved in the holding state, And conveying means for conveying the strip in a state in which the strip is not held when the pressing force is released by the pusher moved upward after the test of the corresponding LED module,
The conveying means
A fixing block provided on one side surface of the guide plate and having a first conveying hole formed at an upper end thereof parallel to the conveying direction of the strip;
A transfer block formed with a transfer protrusion inserted and moved so as to be able to flow in the first transfer hole of the fixed block, the transfer block being moved in the same direction as the longitudinal direction of the first transfer hole;
And a guide protrusion for inserting the other end of the strip into the guide hole of the strip is protruded. When the pusher is lowered, the other end is pressed downward A rotation block in which the guide protrusion is inserted into the guide hole in accordance with the load;
A driving gear rotatably mounted on the fixed block;
A second transfer hole is formed in which one end is rotatable with respect to the fixed block and a gear tooth is formed along the outer circumferential surface and the other end is inserted and moved so that a movable projection moving along the first transfer hole of the fixed block can flow, The second transfer hole is formed in a direction perpendicular to the first transfer hole;
A coupling gear engaged with the gear teeth of the driving gear and the rotating bracket, respectively, to transmit the rotational force of the driving gear to one end of the rotating bracket;
A driving unit for rotating the driving gear when the pusher is lifted;
A first base portion for holding the other end of the rotation block in a state rotated upward by a predetermined angle when the pushing force is released as the pusher moved downward is moved upward; And
And a second home position portion for moving the transport block moved by the rotational force of the driving gear rotated by the driving portion,
In a state in which the pusher is lowered and the guide plate and the strip are pressed downward,
Wherein when the pusher is lifted, the other end of the rotary block is rotated upward by a predetermined angle by the first inward portion, and the guide protrusion is released from the guide hole,
The driving unit rotates the driving gear, the rotational force of the driving gear is transmitted to the rotating bracket through the connecting gear, and the other end of the rotating bracket rotates, so that the moving protrusions inserted in the second feeding hole and the first feeding hole, To horizontally move the conveying block and the rotating block in a direction opposite to the conveying direction of the strip,
When the pusher is lowered, the pusher presses the other end of the rotating block downward to insert the guide protrusion into the guide hole, and then moves the strip and the guide plate downward,
And the second block is horizontally moved in the same direction as the conveying direction of the strip by the second in-situ part, and the LED module column to be tested is transferred to the upper side of the probe as the strip is conveyed. Device.
The light-emitting device according to claim 1,
An integrating sphere for refracting and condensing the light emitted from each of the LED modules in a hemispherical shape;
A light receiving unit positioned at an internal center point of the integrating sphere and receiving light emitted from each LED module; And
And a control unit for comparing the illuminance of each of the LED modules received by the light receiving unit with reference illuminance to discriminate whether the corresponding LED module is normal or not.
delete delete 2. The apparatus according to claim 1, wherein the first in-
And a coil spring provided at one end of the rotating block.
The apparatus according to claim 1, wherein the second in-
And a coil spring provided at one end of the driving gear or the rotating bracket.
The apparatus according to claim 1, wherein the second in-
And a pressing spring which is provided on the first conveying hole to press the moving protrusion in the strip conveying direction.
The driving apparatus according to claim 1,
An engaging protrusion protruded to one side of the driving gear; And
And a driving bar protruding downward from the pusher and having a driving jaw formed at a lower end thereof to be hooked on the engaging jaw,
When the pusher is lifted, the driving bar is moved upward, and the driving jaw rotates upward to rotate the driving gear, so that rotational force is transmitted to move the conveying block,
The driving jaw is not released to the upper side of the engaging jaw,
In contrast, when the pusher is lowered, the drive bar is similarly moved downward, and as the drive jaw is moved downward, the drive gear is rotated in the reverse direction by the second home position portion, and the transfer block is returned to its home position. LED module test device.

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