CN216144908U

CN216144908U - LED circuit board function test device

Info

Publication number: CN216144908U
Application number: CN202121516024.4U
Authority: CN
Inventors: 何忻诺; 江华; 姜伟
Original assignee: Seth Electronics Wuxi Co ltd
Current assignee: Seth Electronics Wuxi Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-03-29
Anticipated expiration: 2031-07-05

Abstract

The utility model relates to a function testing device for an LED circuit board. The utility model comprises the following steps: the jig module comprises an upper jig and a lower jig which are arranged on the upper side and the lower side of the circuit board to be tested, and a test unit corresponding to the LED lamp beads on the circuit board to be tested is arranged in the lower jig; the control module comprises a plurality of control main boards, and each control main board comprises a relay; the switch module is electrically connected with the control module and used for opening or locking the upper jig and the lower jig according to the conduction condition of the LED lamp beads; and the prompting module is electrically connected with the control module and is used for sending a prompt of conduction or non-conduction according to the conduction condition of the LED lamp bead. The utility model abandons the traditional mode of visual inspection of the LED lamp bead lighting condition of the LED circuit board, can carry out automatic detection, reduces the eye fatigue of operators and improves the production efficiency.

Description

LED circuit board function test device

Technical Field

The utility model relates to the technical field of electronic manufacturing, in particular to a function testing device for an LED circuit board.

Background

LEDs are widely used as illumination sources due to their characteristics of energy saving, low consumption, long life, and the like, and are still under continuous and rapid development.

The LED circuit board needs to be tested in the production process to confirm that the LED circuit board can work normally. In the existing testing method, after a circuit board is generally electrified, a visual inspection method is adopted to inspect the light emitting condition of about hundreds of LED lamp beads on the circuit board, the inclination angle of the LED lamp beads on the circuit board and the like. But because LED luminance is very high during the inspection, the inspector light is more dazzling when the inspection, easily injures eyes, and detection efficiency is low, be difficult to accurate discernment bad lamp pearl, has badly to have the risk of flowing out.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the problems of low efficiency and insufficient precision when the performance of the LED circuit board is tested in the prior art.

In order to solve the above technical problem, the present invention provides a device for testing functions of an LED circuit board, comprising: the jig module comprises an upper jig and a lower jig which are arranged on the upper side and the lower side of the circuit board to be tested, one end of the upper jig is rotatably connected with one end of the lower jig, and a test unit corresponding to the LED lamp beads on the circuit board to be tested is arranged in the lower jig; the control module comprises a plurality of control mainboards, each control mainboard comprises a relay, the relays are electrically connected with the test unit, normally open contacts among the relays of the control mainboards are connected in series, and normally closed contacts among the relays of the control mainboards are connected in parallel; the switch module is electrically connected with the control module and used for opening or locking the upper jig and the lower jig according to the conduction condition of the LED lamp beads; the prompting module is respectively electrically connected with the control module and the switch module, and the prompting module is used for sending a prompt of conducting or non-conducting according to the conducting condition of the LED lamp bead.

In an embodiment of the utility model, the upper surface of the lower fixture is provided with a test area, the test unit is arranged in the test area, and the upper surface of the test area is provided with a translucent shading layer.

In one embodiment of the utility model, a limit baffle is arranged around the test area.

In an embodiment of the utility model, the upper surface of the test area is provided with a containing hole for containing the LED lamp beads on the circuit board to be tested, the test unit includes an optical fiber and test probes arranged at one end of the optical fiber, and the test probes correspond to the containing hole one to one.

In an embodiment of the utility model, the jig module further includes a damping connector, and the upper jig and the lower jig are connected through the damping connector.

In an embodiment of the present invention, the switch module includes a latch and an electromagnetic lock, the latch is disposed at a side end of the upper fixture, and the electromagnetic lock is disposed at a side end of the lower fixture corresponding to a position of the latch.

In an embodiment of the utility model, the switch module further comprises an unlocking switch, a handle is arranged at the side end of the upper jig, and the unlocking switch is used for unlocking the upper jig and the lower jig through a key.

In one embodiment of the utility model, the prompting module comprises an 'OK' indicator light, an 'NG' indicator light and a buzzer, and the 'OK' indicator light, the 'NG' indicator light and the buzzer are arranged at the outer end of the lower jig.

In an embodiment of the utility model, the control module comprises a mounting shell, the control mainboard is arranged in the mounting shell, a power indicator lamp is arranged on the mounting shell, and a connecting flat cable is arranged between the mounting shell and the lower jig.

In an embodiment of the utility model, the jig further comprises a trigger switch and a pressure lever, the trigger switch is arranged on the upper end surface of the lower jig, the pressure lever is arranged at a position corresponding to the trigger switch on the inner end surface of the upper jig, and the trigger switch is connected with the control main board.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

according to the LED circuit board function testing device, the traditional mode of visually checking the LED lamp bead lighting condition of the LED circuit board is abandoned, automatic detection can be performed, the eye fatigue of operators is reduced, and the production efficiency is improved.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which

Fig. 1 is a connection diagram of a module of a function testing device of an LED circuit board.

FIG. 2 is a hardware connection diagram of the LED circuit board function testing device.

Fig. 3 is a connection diagram of related components of the wiring of the prompting module and the switch module.

The specification reference numbers indicate: 1. mounting a jig; 2. a lower jig; 3. a test zone; 4. a limit baffle; 5. a damping connector; 6. an "OK" indicator light; 7. an "NG" indicator light; 8. locking; 9. an electromagnetic lock; 10. an unlock switch; 11. a handle; 12. installing a shell; 13. a power indicator light; 14. connecting a flat cable; 15. a trigger switch; 16. a pressure lever; 17. a ground line; 18. an NG signal line; 19. an OK signal line; 20. a power supply positive line.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

Referring to fig. 1 and 2, the LED circuit board function testing apparatus of the present invention includes:

the jig module comprises an upper jig 1 and a lower jig 2 which are arranged on the upper side and the lower side of the circuit board to be tested, one end of the upper jig 1 is rotatably connected with one end of the lower jig 2, and a test unit corresponding to the LED lamp beads on the circuit board to be tested is arranged in the lower jig 2;

the control module comprises a plurality of control mainboards, each control mainboard comprises a relay, the relays are electrically connected with the test unit, normally open contacts among the relays of the control mainboards are connected in series, and normally closed contacts among the relays of the control mainboards are connected in parallel;

the switch module is electrically connected with the control module and used for opening or locking the upper jig 1 and the lower jig 2 according to the conduction condition of the LED lamp beads;

the prompting module is respectively electrically connected with the control module and the switch module, and the prompting module is used for sending a prompt of conducting or non-conducting according to the conducting condition of the LED lamp bead.

Specifically, the upper surface of the lower jig 2 is provided with a test area 3, the test unit is arranged in the test area 3, and the upper surface of the test area 3 is provided with a semitransparent light shielding layer, such as a black light shielding layer. Through the arrangement, the semitransparent shading film attenuates light, so that the accuracy of a test result is further improved. In addition, the upper fixture 1 can be made of a light-tight material, so that the inaccurate test result caused by the influence of ambient light during testing can be further prevented.

Specifically, a limit baffle 4 is arranged around the test area 3. Through the arrangement, the substrate can be effectively prevented from being placed in the wrong direction.

Specifically, 3 upper surfaces in test area are equipped with the accommodation hole that holds LED lamp pearl on the circuit board that awaits measuring, the test unit includes optic fibre and sets up the test probe in optic fibre one end, test probe and accommodation hole one-to-one. The light that LED lamp pearl sent is received and is gone out to control the mainboard by optic fibre transmission through the test probe and handle.

Specifically, the jig module further comprises a damping connector 5, and the upper jig 1 and the lower jig 2 are connected through the damping connector 5. Through the setting, prevent that the operator from going up tool 1 and falling suddenly and leading to injured's risk when the operation.

Specifically, the prompting module comprises an 'OK' indicator light 6, an 'NG' indicator light 7 and a buzzer, wherein the 'OK' indicator light 6, the 'NG' indicator light 7 and the buzzer are arranged at the outer end of the lower jig 2; the switch module comprises a lock catch 8 and an electromagnetic lock 9, the lock catch 8 is arranged at the side end of the upper jig 1, and the electromagnetic lock 9 is arranged at the side end of the lower jig 2 corresponding to the position of the lock catch 8; go up tool 1, still include release switch 10 between the tool 2 down, it is equipped with handle 11 to go up 1 side of tool, release switch 10 is used for going up tool 1, tool 2 unblock down through the key. Under the state that all relays in the control mainboard are closed, an OK signal is triggered, an OK indicator light 6 is lightened, but when one relay is not attracted, an NG signal is triggered, an NG indicator light 7 is lightened and a buzzer buzzes, at the moment, an electromagnetic lock 9 is not opened, an inspector cannot open the upper jig 1, the operation can be continued only by unlocking an unlocking switch 10 by using a key, the fool can be effectively prevented, and a wiring diagram of relevant parts in a prompting module and a switch module, a grounding wire 17, an NG signal wire 18, an OK signal wire 19 and a power supply main line 20 is shown in fig. 3.

Specifically, the control module includes an installation shell 12, the control mainboard is arranged in the installation shell 12, a power indicator 13 is arranged on the installation shell 12, and a connection flat cable 14 is arranged between the installation shell 12 and the lower jig 2. After the jig is powered on, the power indicator 13 is turned on after the power switch is pressed. The circuit board to be tested needs to be separately connected with an AC110V 60Hz power supply. Through the arrangement, the control module and the jig module are arranged to be of a separated structure, the mounting shell 12 can be arranged under the table during use, and the jig module is only required to be placed on the table top, so that the occupied area of the operation table top is reduced, and the operation of operators is more convenient.

Specifically, the jig further comprises a trigger switch 15 and a pressure lever 16, wherein the trigger switch 15 is arranged on the upper end surface of the lower jig 2, the pressure lever 16 is arranged at a position, corresponding to the trigger switch 15, of the inner end surface of the upper jig 1, and the trigger switch 15 is connected with the control main board. When the upper fixture 1 is closed, the lock catch 8 is pressed into the electromagnetic lock 9 to be automatically locked, and the press rod 16 presses the trigger switch 15 to electrify the test circuit to start working.

In this embodiment, 108 photoresistors on a circuit board to be tested are taken as an example for testing, ten control main boards are required, each main board can independently test ten LEDs, each main board is provided with a relay, the relays can be automatically attracted when the test is passed, and normally open contacts (OK signals) of all the relays are connected in series between the eleven main boards; all normally closed contacts (NG signals) are connected in parallel, only in the state that all relays in the control mainboard are closed, an OK signal is triggered, an OK indicator lamp 6 is lightened, but when one relay is not absorbed, an NG signal is triggered, an NG indicator lamp 7 is lightened, a buzzer sounds at the same time, at the moment, an electromagnetic lock 9 cannot be opened, a inspector cannot open the upper jig 1, the operation can be continued only by unlocking the unlocking switch 10 by using a key, and the fool-proofing effect can be effectively realized.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. The utility model provides a LED circuit board functional test device which characterized in that includes:

the jig module comprises an upper jig and a lower jig which are arranged on the upper side and the lower side of the circuit board to be tested, one end of the upper jig is rotatably connected with one end of the lower jig, and a test unit corresponding to the LED lamp beads on the circuit board to be tested is arranged in the lower jig;

the switch module is electrically connected with the control module and used for opening or locking the upper jig and the lower jig according to the conduction condition of the LED lamp beads;

2. The device as claimed in claim 1, wherein the lower fixture has a testing area on an upper surface thereof, the testing unit is disposed in the testing area, and the testing area has a translucent shading layer on an upper surface thereof.

3. The LED circuit board function testing device of claim 2, wherein a limit baffle is arranged around the testing area.

4. The LED circuit board function testing device of claim 2, wherein the upper surface of the testing area is provided with a containing hole for containing LED lamp beads on the circuit board to be tested, the testing unit comprises an optical fiber and testing probes arranged at one end of the optical fiber, and the testing probes are in one-to-one correspondence with the containing hole.

5. The device for testing the functions of the LED circuit board according to claim 1, wherein the jig module further comprises a damping connector, and the upper jig and the lower jig are connected through the damping connector.

6. The device for testing the functions of the LED circuit board as claimed in claim 1, wherein the switch module comprises a latch and an electromagnetic lock, the latch is disposed at the side end of the upper fixture, and the electromagnetic lock is disposed at the side end of the lower fixture corresponding to the latch position.

7. The LED circuit board function testing device of claim 6, wherein the switch module further comprises an unlocking switch, and the unlocking switch is used for unlocking the upper jig and the lower jig by a key.

8. The device for testing the functions of the LED circuit board as claimed in claim 1, wherein the prompt module comprises an "OK" indicator, an "NG" indicator and a buzzer, and the "OK" indicator, the "NG" indicator and the buzzer are arranged at the outer end of the lower jig.

9. The device for testing the functions of the LED circuit board according to claim 1, wherein the control module comprises a mounting housing, the control motherboard is disposed in the mounting housing, the mounting housing is provided with a power indicator, and a connecting cable is disposed between the mounting housing and the lower fixture.

10. The device for testing the functions of the LED circuit board according to claim 1, further comprising a trigger switch and a pressure lever, wherein the trigger switch is arranged on the upper end surface of the lower jig, the pressure lever is arranged at a position corresponding to the trigger switch on the inner end surface of the upper jig, and the trigger switch is connected with the control main board.