TWI413774B - Light source testing device - Google Patents

Abstract

A light source detecting device used for detecting light-emitting diode light sources comprises a test table. A test pin is mounted in the test table, a light-emitting diode light source comprises a light-emitting diode and a circuit board, a circuit structure is arranged on the circuit board, the light-emitting diode is mounted on the circuit board and electrically connected with the circuit structure, the light-emitting diode light source is mounted on the test table, a first elastic press plate and a second elastic press plate are mounted on the test table and both provided with a fixing end and a suspension arm end, the fixing ends are fixed onto the test table, the suspension arm ends clamp the circuit board, and the circuit structure on the circuit board is electrically connected with the test pin. The light source detecting device is not restricted in sizes and shapes of light sources, and accordingly the light source detecting device can be used for detecting the light-emitting diode light sources various in sizes and shapes.

Description

Light source detecting device

The invention relates to a light source detecting device, in particular to a light source detecting device for detecting a light emitting diode light source.

Conventional light-emitting diode light source detecting devices generally include a test stand, a rotating base, and a test pin for detecting a light-emitting diode light source. The rotating base is connected to the bottom surface of the test bench, and the top surface of the test stand is provided with a fixed shape groove for placing the light emitting diode light source. Rotating the rotating base can pass the test pin out from the upper surface of the test stand and contact the electrode of the light emitting diode source to perform light source detection.

However, since the shape and size of the groove for placing the light-emitting diode light source on the test stand has been fixed, the detecting device is only suitable for detecting a light-emitting diode light source of a certain shape and size. In addition, since the light-emitting diode light source is installed in the groove, if the material used in the test bench does not have good thermal conductivity, the heat generated by the light-emitting diode light source is not easily dissipated quickly, thereby adversely affecting the test result.

In view of the above, it is necessary to provide a light source detecting device capable of detecting a plurality of shapes and sizes of light emitting diodes.

A light source detecting device for detecting a light emitting diode light source, comprising a test bench The test stand is provided with a test pin, the light emitting diode light source comprises a light emitting diode and a circuit board, and the circuit board is provided with a circuit structure, the light emitting diode is mounted on the circuit board and the circuit structure Forming an electrical connection, the light emitting diode light source is mounted on a test stand, and the test stand is provided with a first pressure plate and a second pressure plate having elasticity, and the first pressure plate and the second pressure plate each have a fixed end And a cantilever end, the fixed end is fixed on the test bench, the cantilever end holds the circuit board, and the circuit structure on the circuit board is electrically connected to the test pin.

The first pressure plate and the second pressure plate are used to press and fix the light emitting diode light source on the test bench, and the size and shape of the light emitting diode are not restricted, so the light source detecting device can be used for detecting various shapes and sizes. Light-emitting diode source.

The invention will now be further described with reference to the specific embodiments thereof with reference to the drawings.

10, 20‧‧‧Light source detection device

11, 21‧‧‧ test bench

111, 211‧‧‧ top

112‧‧‧ bottom

113, 213‧‧‧through holes

114, 214‧‧‧ test needle

115, 215‧‧‧ first pressure plate

116, 216‧‧‧ second pressure plate

117‧‧‧ Positioning block

12, 22‧‧‧ Pedestal

30‧‧‧Lighting diode source

31‧‧‧Lighting diode

32, 34‧‧‧ circuit board

321, 341‧‧‧ upper surface

322‧‧‧ lower surface

323, 343‧‧‧ circuit structure

1 is a schematic plan view of a light source detecting device according to a first embodiment of the present invention.

2 is a top plan view showing the light source detecting device of FIG. 1 with a light emitting diode light source.

3 is a side elevational view showing the light source detecting device of FIG. 2 equipped with a light emitting diode light source.

4 is a schematic plan view of a light source detecting device according to a second embodiment of the present invention.

FIG. 5 is a top plan view showing the light source detecting device of FIG. 4 equipped with a light emitting diode light source.

6 is a side view of the light source detecting device of FIG. 5 equipped with a light emitting diode light source. .

Referring to FIG. 1 to FIG. 3 , a light source detecting device 10 according to a first embodiment of the present invention includes a test stand 11 and a susceptor 12 for detecting the light emitting diode light source 30 .

The light emitting diode light source 30 includes a light emitting diode 31 and a circuit board 32. The light emitting diode 31 is mounted on the circuit board 32. The circuit board 32 has opposing upper and lower surfaces 321 and 322, and a circuit structure 323 extending downwardly from the upper surface 321 to the lower surface 322. The light emitting diode 31 is electrically connected to the circuit structure 323. In this embodiment, the circuit structure 323 is divided into two blocks, and the spacing between the two is smaller than the size of the LEDs 31, thereby ensuring electrical connection between the LEDs 31 and the circuit board 32.

The test stand 11 is used to place the light emitting diode source 30. The test stand 11 has opposing top faces 111 and bottom faces 112, and two through holes 113 extending through the top face 111 and the bottom face 112. The test stand 11 is generally cylindrical. In the present embodiment, the number of the through holes 113 is two. Of course, in other embodiments, the number of the through holes 113 may be set as needed. The two through holes 113 are symmetrically distributed on the top surface 111 and correspond to the position of the foregoing circuit structure 323. The through hole 113 is for mounting the test pin 114.

The test pin 114 is disposed through the through hole 113 and exposed to the top surface 111 and the bottom surface 112. In the present embodiment, the number of the test pins 114 is two, and two through holes 113 are respectively bored. When the circuit board 32 is mounted on the test board 11, the test pin 114 is electrically connected to the circuit board 32 through the through hole 113, thereby forming an electrical connection with the circuit board 32, thereby enabling the light emitting diode Body 31 is tested.

A first pressure plate 115, a second pressure plate 116, and a positioning block 117 are mounted on the top surface 111 of the test table 11. The bottom surface 112 of the test stand 11 is attached to the upper surface of the base 12 to fix the test stand 11 to the base 12.

The first pressure plate 115 and the second pressure plate 116 are respectively located outside the two through holes 113, and the distance between the first pressure plate 115 and the second pressure plate 116 is greater than the width of the circuit board 32 to be placed. One end of the first pressure plate 115 and the second pressure plate 116 away from the through hole 113 is fixed to the top surface 111 to form a fixed end, and the unfixed end forms a cantilever end. The first pressure plate 115 and the second pressure plate 116 may be made of an elastic material, for example, a resilient metal material, so that the cantilever end can be toggled up and down. When the cantilever end is pulled upward, the spacing between the first platen 115, the second platen 116, and the top surface 111 can be increased, thereby pushing the circuit board 32 from the side below the first platen 115 and the second platen 116. The cantilever end is then released to clamp the circuit board 32, thereby limiting the displacement of the circuit board 32 along the line direction of the first pressure plate 115 and the second pressure plate 116. In the present embodiment, the fixing manner of the first pressure plate 115 and the second pressure plate 116 is a screw connection. In other embodiments, the fixed ends of the first pressure plate 115 and the second pressure plate 116 may be fixed to the top surface 111 by welding or the like.

The positioning block 117 is mounted on the top surface 111 and parallel to the connection between the first pressure plate 115 and the second pressure plate 116. In the process of pushing the circuit board 32 from the side below the first pressure plate 115 and the second pressure plate 116, when the circuit board 32 is pushed to abut in a direction perpendicular to the line connecting the first pressure plate 115 and the second pressure plate 116 After the positioning block 117, it can no longer be pushed forward, thereby limiting the circuit board 32.

The upper surface of the susceptor 12 is in contact with the test pin 114 and is electrically connected to other detecting elements (not shown).

Before the light source detecting device 10 of the present embodiment detects the light emitting diode light source 30, the first pressure plate 115 and the second pressure plate 116 are first pulled apart, so that the first pressure plate 115 and the second pressure plate 116 and the top of the test bench 11 are The face 111 maintains a distance sufficient to accommodate the thickness of the circuit board 32; then the circuit board 32 is pushed from below into the first platen 115 and the second platen 116, and the circuit structure 323 of the circuit board 32 is maintained and exposed to the top surface 111. The needles 114 are in contact; the first platen 115 and the second platen 116 are loosened to secure the circuit board 32 to the test stand 11. At this time, the test pin 114 is electrically connected to the light-emitting diode 31, and the detection of the light-emitting diode 31 can be realized by operating a power source or the like.

The top surface 111 of the test stand 11 is an open space, and only the circuit board 32 is clamped and limited, so that the size and shape of the LEDs 31 mounted thereon are not limited. Therefore, the light source detecting device 10 can detect a plurality of light emitting diode light sources 30, which is more versatile. In addition, in order to better facilitate the heat dissipation, the circuit board can be made of a material having high heat dissipation efficiency, thereby avoiding the influence of heat on the detection of the light-emitting diode light source 30.

The light source detecting device 10 provided in the present embodiment directly contacts the circuit board 32 and the test pin 114, thereby electrically connecting the light emitting diode 31 and the susceptor 12, thereby realizing detection of the light emitting diode light source 30.

Referring to FIG. 4 to FIG. 6 , a light source detecting device 20 according to a second embodiment of the present invention includes a test stand 21 and a base 22 for detecting the light emitting diode light source 30 .

The light emitting diode light source 30 includes a light emitting diode 31 and a circuit board 34. The upper surface 341 of the circuit board 34 is formed with a circuit structure 343.

The test stand 21 is different from the test stand 11 in the first embodiment in that the distance between the two through holes 213 formed by the test stand 21 from the top surface 211 is greater than the width of the circuit board 34 to be mounted. . The first pressure plate 215 and the second pressure plate 216 mounted on the test stand 21 are all made of a conductive material, and the test pin 214 passes through the top surface 211 against the fixed ends of the first pressure plate 215 and the second pressure plate 216 and is formed. Electrical connection. The upper surface of the circuit board 32 is pressed under the cantilever ends of the first pressure plate 215 and the second pressure plate 216, and the circuit structure 343 is electrically connected to the test pin 214 by the first pressure plate 215 and the second pressure plate 216.

The light source detecting device 20 provided by the second embodiment uses the first pressing plate 215 and the second pressing plate 216 as intermediate elements of the conducting circuit board 34 and the test pin 214, and also electrically connects the LED light source 30 and the lower base 22 . Thereby, detection of the light-emitting diode light source 30 is achieved.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

111‧‧‧ top surface

112‧‧‧ bottom

113‧‧‧through hole

114‧‧‧Test pin

115‧‧‧First pressure plate

116‧‧‧Second platen

12‧‧‧ Pedestal

30‧‧‧Lighting diode source

31‧‧‧Lighting diode

32‧‧‧ boards

321‧‧‧ upper surface

322‧‧‧ lower surface

323‧‧‧Circuit structure

Claims (8)

A light source detecting device for detecting a light emitting diode light source, comprising a test stand, wherein the test stand is provided with a test pin, the light emitting diode light source comprises a light emitting diode and a circuit board, and the circuit board is provided a circuit structure, the light emitting diode is mounted on the circuit board and electrically connected to the circuit structure, and the light emitting diode light source is mounted on the test bench, and the improvement is that the test bench is mounted a first pressure plate and a second pressure plate having elasticity, the first pressure plate and the second pressure plate each have a fixed end and a cantilever end, the fixed end is fixed on the test bench, the cantilever end clamps the circuit board, and the circuit on the circuit board The structure is electrically connected to the test pin. The light-emitting diodes correspond to two test pins, and each test pin passes through the test stand and is electrically connected to the light-emitting diode. The light source detecting device of claim 1, wherein the test stand has a top surface and a bottom surface disposed opposite to each other, and a through hole penetrating the top surface and the bottom surface, each of the test pins being disposed through each of the through holes The holes are exposed to the top and bottom surfaces. The light source detecting device of claim 2, wherein a distance between the through holes is smaller than a width of the circuit board. The light source detecting device of claim 3, wherein the circuit structure extends from an upper surface of the circuit board on which the light emitting diode is mounted to a lower surface away from the upper surface, and the test pin passes through the top of the test bench. The surface abuts against the lower surface of the circuit board and is electrically connected to the circuit structure. The light source detecting device according to claim 1, wherein the first pressure plate and the second pressure plate are made of a metal material. The light source detecting device of claim 2, wherein the through hole The distance between them is greater than the width of the board. The light source detecting device of claim 6, wherein the circuit structure is formed on an upper surface of the circuit board, and the test pins pass through the top surface of the test stand against the first pressure plate and the second pressure plate, respectively. The first pressure plate and the second pressure plate are made of a conductive material, and the cantilever ends of the first pressure plate and the second pressure plate are pressed against the upper surface of the circuit board, and the circuit structure and the test pin are electrically connected. connection. The light source detecting device of claim 1, wherein the test stand is further provided with a positioning block parallel to the connecting direction of the first pressing plate and the second pressing plate, the circuit board Resist on the positioning block.