CN217424719U

CN217424719U - Automatic testing device for LED light

Info

Publication number: CN217424719U
Application number: CN202221186678.XU
Authority: CN
Inventors: 刘小雄; 皮振辉; 刘建卫
Original assignee: Shenzhen Toptec Technology Co ltd
Current assignee: Shenzhen Toptec Technology Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-13
Anticipated expiration: 2032-05-17

Abstract

The utility model discloses a LED light automatic testing device, the device includes base, tool, pushes down the mechanism, control panel and LED analysis appearance, the tool locates the base top, and connect through the elastic component between tool and the base, the top surface of tool is equipped with at least one recess that is used for placing the LED circuit board that awaits measuring, be equipped with between base and the tool with recess one-to-one correspondence guide pin group, the bottom surface of recess is equipped with the position avoiding hole just right to with guide pin group; the pressing mechanism comprises a driving assembly arranged on the base and a pressing plate positioned above the jig, the driving assembly is connected with the pressing plate and used for driving the pressing plate to lift, optical fibers which correspond to the grooves one by one are arranged on the pressing plate, and the optical fibers are used for transmitting LED light emitted by the LED circuit board to be detected in the corresponding grooves; the control board is arranged on the base and is electrically connected with the guide pin group; the LED analyzer is arranged on the base and connected with the optical fiber. The utility model discloses a LED light automatic testing arrangement has guaranteed LED functional test's accuracy.

Description

Automatic testing device for LED light

Technical Field

The utility model relates to a LED test equipment field, in particular to LED light automatic testing arrangement.

Background

The LED has wide application on electronic products, generally serves as function indication, the color and the brightness of the LED are directly embodied by functions, and the function test is carried out on the LED before the LED leaves a factory.

At present, the testing of the LEDs on the circuit board mainly depends on the recognition of human eyes of a tester to determine whether the color of light emitted by the LEDs meets the corresponding standard. The mode of manually identifying the LED light has the following defects: after the manual work for a long time, eyes are easy to fatigue, the sensitivity to the light color is reduced, misjudgment is easy to occur, and the test result is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a LED light automatic testing arrangement aims at promoting the accuracy of the test result of the LED light test of the circuit board that awaits measuring.

In order to achieve the above object, the utility model provides a LED light automatic testing device for test LED circuit board, this LED light automatic testing device includes:

a base;

the jig is arranged above the base, the jig is connected with the base through an elastic component, the top surface of the jig is provided with at least one groove for placing an LED circuit board to be tested, guide pin groups in one-to-one correspondence to the grooves are arranged between the base and the jig, and the bottom surface of the groove is provided with a position avoiding hole opposite to the guide pin groups;

the pressing mechanism comprises a driving assembly arranged on the base and a pressing plate positioned above the jig, the driving assembly is connected with the pressing plate and used for driving the pressing plate to lift, optical fibers in one-to-one correspondence with the grooves are arranged on the pressing plate, and the optical fibers are used for transmitting LED light emitted by the LED circuit board to be tested in the corresponding grooves;

the control board is arranged on the base and is electrically connected with the guide pin group; and

the LED analyzer is arranged on the base and connected with the optical fiber.

In some embodiments, one end of the optical fiber is connected to the LED analyzer, and the other end of the optical fiber is inserted into the pressing plate and faces the corresponding groove.

In some embodiments, the pressing plate is further provided with first air cylinders corresponding to the grooves one to one, the first air cylinders are vertically inserted into the pressing plate, the driving ends of the first air cylinders face the corresponding grooves, and the first air cylinders are electrically connected with the control board.

In some embodiments, the control board includes a main control circuit electrically connecting each of the needle groups and each of the first cylinders, respectively.

In some embodiments, the control board further comprises an analog battery for detecting the charging current of the LED circuit board to be tested in the groove, and the analog battery is electrically connected with the main control circuit.

In some embodiments, the driving assembly includes a bracket and a second cylinder, the bracket is fixed on the base, the second cylinder is installed on the bracket, a driving end of the second cylinder is connected with the pressing plate, and the second cylinder is electrically connected with the main control circuit.

In some embodiments, the elastic assembly includes a first sleeve, a second sleeve and a return spring, one end of the first sleeve is connected to the jig, the other end of the first sleeve is sleeved on the second sleeve, the return spring is disposed in the first sleeve and is respectively connected to the first sleeve and the second sleeve, and one end of the second sleeve, which is far away from the first sleeve, is connected to the base.

In some embodiments, a pressing plate is provided with a pressing component for pressing the to-be-tested LED circuit board in the groove, and the pressing component corresponds to the groove one to one.

In some embodiments, the holding assembly includes a plurality of buffer posts arranged at intervals.

The utility model provides an among the technical scheme, when testing, the LED circuit board that will await measuring is placed in the recess of tool after, by the downward pressfitting tool of drive assembly drive clamp plate, make guide pin group pass keep away the position hole in order to be connected with the LED circuit board electricity that awaits measuring, and will await measuring the LED circuit board through optic fibre and send LED light guide-in to the LED analysis appearance in the test procedure, carry out the analysis in order to reachd the test result by the LED light of LED analysis appearance to the LED light of the LED circuit board that awaits measuring, the automatic test of LED light has been realized, compare in the artifical test of prior art, the condition of artifical erroneous judgement has effectively been avoided, the accuracy of LED light test has been guaranteed, and, the test speed of automatic test is stable, further, the efficiency of software testing has also been promoted.

Drawings

Fig. 1 is a schematic structural view of an automatic testing device for LED lighting according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a part of a structure of an automatic testing apparatus for LED lighting according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a jig according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a jig and an elastic component according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a LED light automatic testing arrangement for test LED circuit board.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is the structural schematic diagram of the automatic testing device of LED light in an embodiment of the present invention, fig. 2 is the structural schematic diagram of the partial structure of the automatic testing device of LED light in an embodiment of the present invention, fig. 3 is the structural schematic diagram of the fixture 2 in an embodiment of the present invention.

In this embodiment, this automatic testing arrangement of LED light includes:

a base 1;

the jig 2 is arranged above the base 1, the jig 2 is connected with the base 1 through the elastic component 3, the top surface of the jig 2 is provided with at least one groove 21 for placing the LED circuit board to be tested, the guide pin groups 4 which are in one-to-one correspondence with the grooves 21 are arranged between the base 1 and the jig 2, and the bottom surface of the groove 21 is provided with a position avoiding hole 22 which is opposite to the guide pin groups 4;

the pressing mechanism 5 comprises a driving component 51 arranged on the base 1 and a pressing plate 52 positioned above the jig 2, the driving component 51 is connected with the pressing plate 52 and used for driving the pressing plate 52 to lift, the pressing plate 52 is provided with optical fibers 6 in one-to-one correspondence with the grooves 21, and the optical fibers 6 are used for transmitting LED light emitted by the LED circuit board to be tested in the corresponding grooves 21;

the control board is arranged on the base 1 and is electrically connected with the guide pin group 4; and

and the LED analyzer is arranged on the base 1 and is connected with the optical fiber 6.

In this embodiment, base 1 can set to the rectangle box body that is formed by the bakelite plate concatenation, is equipped with the accommodation space in the base 1, can place test circuit's important component, for example LED analysis appearance, power, singlechip etc.. Jig 2 is installed to base 1 top, is connected through elastic component 3 between jig 2 and the base 1, and elastic component 3 makes jig 2 can automatic recovery to original position after pressurized. The elastic component 3 may be in particular a spring or another elastic element. Tool 2 is used for placing the LED circuit board that awaits measuring and fixes a position the LED circuit board that awaits measuring, particularly, tool 2's top surface is equipped with at least one recess 21 that is used for placing the LED circuit board that awaits measuring, recess 21 and the LED circuit board adaptation that awaits measuring, the quantity of recess 21 can set up according to actual conditions, this embodiment is preferred six, be equipped with between base 1 and the tool 2 with recess 21 one-to-one's guide pin group 4, guide pin group 4 is used for the electric connection LED circuit board that awaits measuring, the bottom surface of recess 21 is equipped with and organizes 4 just right hole 22 of keeping away with the guide pin.

The pressing mechanism 5 of this embodiment is used for driving the jig 2 to press downward, so that the LED circuit board to be tested is electrically connected with the guide pin set 4. Specifically, the pressing mechanism 5 includes a driving assembly 51 disposed on the base 1 and a pressing plate 52 disposed above the jig 2, the driving assembly 51 may be an air cylinder, a driving end of the air cylinder is connected to the pressing plate 52, and the pressing plate 52 can be driven to press downward. During operation, the cylinder drives the pressing plate 52 to descend, the pressing plate 52 presses the jig 2, the jig 2 moves towards the guide pin group 4, the guide pin group 4 penetrates through the avoiding hole 22 on the bottom surface of the groove 21 to be electrically connected with the LED circuit board to be tested, and the control panel provides electric signals required by testing for the LED circuit board to be tested through the guide pin group 4.

The control panel of this embodiment is connected with guide pin group 4, and the control panel is equipped with control chip, for example singlechip etc. steerable supplies power or controls 5 automatic pressfitting tools of mechanism 2 etc. of pushing down to the LED circuit board that awaits measuring. The LED analyzer is connected with the optical fiber 6, after the LED circuit board to be detected is electrified, the optical fiber 6 transmits LED light emitted by the LED circuit board to be detected to the LED analyzer, the LED analyzer analyzes light signals, and whether the color and the brightness of the LED light meet corresponding standards or not is judged. It is thus clear that the automatic testing arrangement of LED light of this embodiment has realized the automated testing of LED light, compares in the artifical test of prior art, and this embodiment passes through LED analysis appearance analysis LED light and reachs the test result, can effectively avoid the condition of artifical erroneous judgement, has guaranteed the accuracy of LED light test to, because the test speed of automated testing is stable, further promoted the efficiency of software testing of LED light.

In some embodiments, one end of the optical fiber 6 is connected to the LED analyzer, and the other end of the optical fiber 6 is inserted into the pressing plate 52 and faces the corresponding groove 21.

In this embodiment, the optical fibers 6 are disposed on the pressing plate 52, specifically, one end of the optical fiber 6 is connected to the LED analyzer, and the other end is inserted into the pressing plate 52, and each optical fiber 6 faces each groove 21 of the fixture 2.

In some embodiments, the pressure plate 52 is further provided with first air cylinders 53 corresponding to the grooves 21 one by one, the first air cylinders 53 are vertically inserted into the pressure plate 52, the driving ends of the first air cylinders 53 face the corresponding grooves 21, and the first air cylinders 53 are electrically connected with the control board.

In this embodiment, the first cylinders 53 are disposed on the pressing plate 52 and used for controlling the switches of the LEDs on the LED circuit board to be tested. Specifically, the first air cylinder 53 is vertically inserted into the pressing plate 52, one end of which is electrically connected to the control board, and the other end of which is an output end, and the output end passes through the pressing plate 52 toward its corresponding groove 21. During operation, the output end of the first air cylinder 53 is controlled by the control panel to stretch out, and the switch of the LED on the LED circuit board to be tested is pressed, so that the LED can switch different colors, and the different colors of the LED can be tested.

In some embodiments, the control board includes a master control circuit that electrically connects each of the needle sets 4 and each of the first cylinders 53, respectively.

In this embodiment, the control panel includes master control circuit, and master control circuit is equipped with the singlechip, and master control circuit is connected with each guide pin group 4 and each first cylinder 53 electricity respectively to control to go up and control the switching of the LED colour on the LED circuit board that awaits measuring to the LED circuit board that awaits measuring.

Further, the control board further comprises a simulation battery for detecting the charging current of the LED circuit board to be detected in the groove 21, and the simulation battery is electrically connected with the main control circuit.

In some embodiments, the driving assembly 51 includes a bracket 511 and a second cylinder 512, the bracket 511 is fixed on the base 1, the second cylinder 512 is installed on the bracket 511, a driving end of the second cylinder 512 is connected with the pressing plate 52, and the second cylinder 512 is electrically connected with the main control circuit.

In this embodiment, the driving assembly 51 is used for driving the pressing plate 52 to press the jig 2. Specifically, the driving assembly 51 includes a bracket 511 fixed to the base 1 and a second cylinder 512 installed on the bracket 511, an output end of the second cylinder 512 is connected to the pressing plate 52, and the second cylinder 512 is connected to the main control circuit. When the jig 2 works, the main control circuit controls the second air cylinder 512 to drive the pressing plate 52 to move downwards, so that the pressing plate 52 presses the jig 2.

Referring to fig. 4, fig. 4 is a schematic structural diagram of the jig 2 and the elastic component 3 according to an embodiment of the present invention.

In some embodiments, the elastic component 3 includes a first sleeve 31, a second sleeve 32, and a return spring, one end of the first sleeve 31 is connected to the jig 2, the other end of the first sleeve is sleeved on the second sleeve 32, the return spring is disposed in the first sleeve 31 and is respectively connected to the first sleeve 31 and the second sleeve 32, and one end of the second sleeve 32, which is far away from the first sleeve 31, is connected to the base 1.

In this embodiment, the elastic component 3 is mainly used for buffering the impact force from the pressing plate 52, so as to protect the LED circuit board to be tested while powering on. The number of the elastic elements 3 may be one or more, and when there is one elastic element 3, the elastic element 3 is connected to the central position of the bottom surface of the fixture 2, and preferably four elastic elements 3 are provided at four corners of the fixture 2. Specifically, the second cylinder 512 drives the pressing plate 52 to move downwards, the pressing plate 52 abuts against the LED circuit board to be tested, the jig 2 receives pressure, the first sleeve 31 of the elastic component 3 slowly moves downwards under the pressure, the elastic component stops when the return spring in the first sleeve 31 reaches the elastic limit, the guide pin group 4 is electrically connected with the LED circuit board to be tested, the LED analyzer detects the brightness and color of the LED light, after the test is completed, the pressing plate 52 moves upwards, the first sleeve 31 slowly moves upwards under the action of the return spring, the return spring stops when the return spring returns to the original length, the impact force of the pressing plate 52 is effectively buffered, and the LED circuit board to be tested is protected.

In some embodiments, the pressing plate 52 is provided with a holding component 7 for holding the LED circuit board to be tested in the groove 21 on a surface facing the fixture 2, and the holding component 7 corresponds to the groove 21.

In this embodiment, when the pressing plate 52 abuts against the LED circuit board to be tested, the abutting component 7 plays a role in buffering, so as to reduce the impact force of the pressing plate 52 on the LED circuit board to be tested, and avoid the damage to the LED circuit board to be tested due to the excessive impact force. Specifically, the holding member 7 includes a plurality of buffer pillars 71 arranged at intervals, and the buffer pillars 71 are preferably made of rubber or silica gel. In addition, in order to further protect the LED circuit board to be tested, a pressure sensor may be further disposed at the end of the buffer column 71, and when the pressure applied by the buffer column 71 to the LED circuit board to be tested exceeds a preset threshold, an alarm signal is immediately sent out, and the power supply of the driving assembly 51 is cut off.

The above is only the part or the preferred embodiment of the present invention, no matter the characters or the drawings can not limit the protection scope of the present invention, all under the whole concept of the present invention, the equivalent structure transformation performed by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the protection scope of the present invention.

Claims

1. The utility model provides a LED light automatic testing device for test LED circuit board, its characterized in that includes:

a base;

the pressing mechanism comprises a driving component arranged on the base and a pressing plate positioned above the jig, the driving component is connected with the pressing plate and used for driving the pressing plate to lift, optical fibers in one-to-one correspondence with the grooves are arranged on the pressing plate, and the optical fibers are used for transmitting LED light emitted by the LED circuit board to be tested in the corresponding grooves;

the LED analyzer is arranged on the base and connected with the optical fiber.

2. The automatic LED light testing device according to claim 1, wherein one end of the optical fiber is connected with the LED analyzer, and the other end of the optical fiber is inserted into the pressing plate and faces the corresponding groove.

3. The automatic LED light testing device according to claim 1, wherein the pressing plate is further provided with first air cylinders corresponding to the grooves one to one, the first air cylinders are vertically inserted into the pressing plate, the driving ends of the first air cylinders face the corresponding grooves, and the first air cylinders are electrically connected with the control board.

4. The LED light automatic testing device according to claim 3, wherein the control board comprises a main control circuit, and the main control circuit is electrically connected with each guide pin group and each first air cylinder respectively.

5. The LED lamplight automatic testing device according to claim 4, wherein the control board further comprises a simulation battery for detecting the charging current of the LED circuit board to be tested in the groove, and the simulation battery is electrically connected with the main control circuit.

6. The LED light automatic testing device according to claim 4, wherein the driving assembly comprises a support and a second cylinder, the support is fixed on the base, the second cylinder is mounted on the support, a driving end of the second cylinder is connected with the pressing plate, and the second cylinder is electrically connected with the main control circuit.

7. The LED light automatic testing device according to claim 1, wherein the elastic component comprises a first sleeve, a second sleeve and a return spring, one end of the first sleeve is connected with the jig, the other end of the first sleeve is sleeved on the second sleeve, the return spring is arranged in the first sleeve and is respectively connected with the first sleeve and the second sleeve, and one end of the second sleeve, far away from the first sleeve, is connected with the base.

8. The automatic LED lamp light testing device according to claim 7, wherein the number of the elastic assemblies is four, and the four elastic assemblies are respectively arranged at four corners of the jig.

9. The automatic LED light testing device according to claim 1, wherein a pressing component for pressing the LED circuit board to be tested in the groove is arranged on one surface of the pressing plate facing the jig, and the pressing component corresponds to the groove in a one-to-one manner.

10. The automatic LED light testing device of claim 9, wherein the holding assembly comprises a plurality of spaced-apart buffer posts.