A detector

Abstract

The utility model provides a kind of detector, including test box, test table, test stand, power supply component and detection component, test table is installed in the inner chamber of test box, for placing the circuit board to be detected;One end of test stand is rotatably connected with test table;Power supply component includes power supply circuit and the test needle electrically connected to power supply circuit by cable, test needle is fixed on test stand, test stand can press test needle on the pin of circuit board when rotating;Detection component includes camera and controller, camera is installed in the inner chamber of test box and is located above test table, camera can take photograph to the circuit board after power on, and the picture data obtained by shooting is transmitted to controller to detect identification. It can realize the number of the lamp that specified color light is emitted on the circuit board to automatic detection, to improve the efficiency and accuracy of detection.

Description

Technical Field

[0001] The utility model relates to a detector, in particular to a detector for detecting the number of lamps that emit specified - colored lights on a circuit board. Background Technique

[0002] The light beauty instrument has been a highly - praised skin - care device in recent years. It uses lights of different wavelengths to irradiate the face to achieve the effect of beauty skin - care. For example, irradiating the face with red light has the effects of promoting cell division, proliferating collagen, and fading fine lines; irradiating the face with yellow light can remove dullness and improve skin color; irradiating the face with green light can relieve problems such as skin red blood streaks and blood - vessel dilation, making the skin look healthier and more uniform.

[0003] In the existing - technology light beauty instrument, three kinds of LED lamps that can respectively emit red light, yellow light, and green light are usually installed on pads to assemble a circuit board. After the circuit board is assembled, it is necessary to detect the number of lamps that emit specified - colored lights on the circuit board. In the existing technology, it is usually manually detected. That is, the circuit board is placed on a test bench, and the worker contacts the test probe with the corresponding pin on the circuit - board pad to supply power to the circuit board through the power - supply circuit connected to the test probe, so that the corresponding LED lamp conducts and emits light. Then, the worker counts the number of lamps that emit a certain specific - colored light. If the number is consistent with the preset number, it is a qualified product. For each circuit board of the light beauty instrument that can emit red, yellow, and green lights, the worker needs to contact the test probe with the pins at different positions on the pad three times to make the three kinds of LED lamps conduct respectively, and then count the number of lit lamps each time after conduction. Looking directly at the lamp with the human eye for a long time is prone to fatigue, and it is difficult to guarantee the accuracy of manual visual inspection. Content of the Utility Model

[0004] The utility model aims to at least solve one of the above - mentioned technical problems, and provides a detector that can automatically detect the number of lamps that emit specified - colored lights on a circuit board to improve the detection efficiency and accuracy.

[0005] To achieve the above - mentioned purpose, the technical solution adopted by the utility model is:

[0006] A testing instrument for detecting the number of lights emitting a specified color on a circuit board includes a test box, a test platform, a test frame, a power supply component, and a detection component. The test box has an inlet and outlet communicating with the inner cavity of the test box on its side. The test platform is installed in the inner cavity of the test box and is used to place the circuit board to be tested. One end of the test frame is rotatably connected to the test platform. The power supply component includes a power supply circuit and test pins electrically connected to the power supply circuit via cables. The test pins are fixed on the test frame. When the test frame rotates, it can press the test pins against the pins of the circuit board to power on the lights to be tested. The detection component includes a camera and a controller. The camera is installed in the inner cavity of the test box and located above the test platform. The camera can take pictures of the circuit board after it is powered on and transmit the captured image data to the controller for detection and identification, thereby obtaining the number of lights emitting a specified color.

[0007] Furthermore, the test fixture can rotate in a disconnected position and a connected position under force: when the test fixture is in the disconnected position, the test probe is separated from the circuit board, and the lamp on the circuit board is de-energized; when the test fixture is in the connected position, the test probe presses against the pin of the circuit board, so that the lamp to be tested is energized.

[0008] Furthermore, the test frame has a first end and a second end that are arranged opposite to each other, the first end being located away from the inlet and outlet and rotatably connected to the test bench.

[0009] Furthermore, the detector also includes a locking assembly, which includes a mounting base, a pressing member, and a torsion spring. The mounting base is fixed to the test bench, the pressing member is rotatably connected to the mounting base via a fixed shaft, and the torsion spring is sleeved on the fixed shaft with its two ends elastically abutting against the fixed base and the pressing member, respectively. When the test frame is in the conductive position, the elastic force of the torsion spring causes the pressing member to abut against the top surface of the second end.

[0010] Furthermore, the pressing member includes a pressing arm and a pressing arm fixedly connected to one end of the pressing arm. The junction of the pressing arm and the pressing arm is rotatably sleeved on the fixed shaft. One end of the torsion spring elastically abuts against the pressing arm or the pressing arm. When the test frame is in the conducting position, the elastic force of the torsion spring causes the pressing arm to abut against the top surface of the second end.

[0011] Furthermore, when the pressing arm is pressed, it can rotate to move away from the second end, thereby enabling the test frame to rotate toward the disconnected position.

[0012] Furthermore, the mounting base is provided with a receiving cavity. A first opening communicating with the receiving cavity is opened on the side of the mounting base facing away from the second end, and a second opening communicating with the receiving cavity is opened on the side of the mounting base facing the second end. The junction of the pressing arm and the abutting arm and the torsion spring are both received in the receiving cavity. The free end of the pressing arm is located outside the first opening. When the abutting member is rotated under force, the free end of the abutting arm can extend or retract from the second opening.

[0013] Furthermore, a fixed seat is installed on the top surface of the test platform, the fixed seat is located on the side of the test platform away from the inlet and outlet, and a connecting shaft is installed on the fixed seat; a rotating hole is provided at the first end of the test frame, and the test frame is rotatably sleeved on the connecting shaft through the rotating hole.

[0014] Furthermore, the test fixture is provided with a positioning notch for positioning the circuit board.

[0015] Furthermore, a storage box is fixed to the bottom of the test box, and the controller is stored in the storage box; the detection component also includes a display, which is connected to the controller via a wireless communication signal to receive and display the detection results sent by the controller.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] When using the above-mentioned detector, the circuit board is placed on the test platform, and the test frame is rotated to press the test probe against the pins of the circuit board so that the lamp to be tested is powered on and illuminates. The camera takes a picture of the circuit board after it is powered on, and transmits the captured image data to the controller for detection and recognition, thereby obtaining the number of lamps emitting a specified color light. This enables automatic detection of the number of lamps emitting a specified color light on the circuit board, improving the efficiency and accuracy of the detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the circuit board structure of a light-based beauty device in the prior art;

[0019] Figure 2 This is a schematic diagram of the main structure of the detector according to a preferred embodiment of the present invention;

[0020] Figure 3 for Figure 1 The diagram shows a top view of the circuit board after it has been placed on the test bench.

[0021] Figure 4 for Figure 3 Left view of the structure without the circuit board;

[0022] Figure 5 This is a cross-sectional view of the locking component in a preferred embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the connection circuit of the power supply component in a preferred embodiment of the present invention;

[0024] In the attached diagram, 100 is the detector; 10 is the test box; 12 is the inlet / outlet; 13 is the storage box; 30 is the test platform; 50 is the test frame; 51 is the first end; 52 is the second end; 53 is the fixed base; 54 is the connecting shaft; 55 is the rotating hole; 56 is the positioning notch; 71 is the power supply circuit; 72 is the battery; 73 is the power switch; 74 is the branch switch; 75 is the shooting button; 76 is the test probe; 80 is the locking component; 81 is the mounting base; 811 is the receiving cavity; 812 is the first opening; 813 is the second opening; 83 is the pressing component; 831 is the pressing arm; 833 is the pressing arm; 85 is the torsion spring; 86 is the fixed shaft; 90 is the detection component; 91 is the camera; 200 is the circuit board; 210 is the LED light; 230 is the pin; and 250 is the protrusion. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see also Figure 1 and Figure 2 This utility model provides a detector 100 in a preferred embodiment for detecting the number of lights emitting a specified color on a circuit board. In this embodiment, the circuit board 200 is the circuit board 200 of a light beauty device, which is generally ring-shaped. The circuit board 200 is provided with a plurality of LED lights 210 arranged at intervals. The plurality of LED lights 210 are divided into three types, and the three types of LED lights 210 can emit red light, yellow light and green light respectively after being turned on.

[0029] The testing instrument 100 includes a test chamber 10, a test platform 30, a test rack 50, a power supply component (not shown), and a testing component 90. The side of the test chamber 10 has an inlet and outlet 12 that communicates with the inner cavity of the test chamber 10. In this embodiment, a storage box 13 is also fixed to the bottom of the test chamber 10.

[0030] Please see also Figure 3 and Figure 4 The test bench 30 is installed in the inner cavity of the test chamber 10 and is used to place the circuit board 200 to be tested. One end of the test frame 50 is rotatably connected to the test bench 30. In this embodiment, the test frame 50 has a first end 51 and a second end 52 that are arranged opposite to each other. The first end 51 is located away from the inlet / outlet 12 and is rotatably connected to the test bench 30. Specifically, a fixing seat 53 is installed on the top surface of the test bench 30. The fixing seat 53 is located on the side of the test bench 30 away from the inlet / outlet 12, and a connecting shaft 54 ​​is installed on the fixing seat 53. The first end 51 of the test frame 50 is provided with a rotating hole 55, and the test frame 50 is rotatably sleeved on the connecting shaft 54 ​​through the rotating hole 55.

[0031] Please see also Figure 6 The power supply assembly includes a power supply circuit 71 and test pins 76 electrically connected to the power supply circuit 71 via cables (not shown). In this embodiment, three pairs of test pins 76 are provided corresponding to the three types of LED lights 210. The structure of the power supply circuit 71 is prior art, which includes a battery 72, a power switch 73, and three branch switches 74. The battery 72 and the power switch 73 are connected in series, and the three pairs of test pins 76 are connected in parallel, with each pair of test pins 76 connected to the positive and negative terminals of the power supply, respectively. The three branch switches 74 are respectively provided on the three parallel branches to control the on / off state of the three parallel branches, thereby enabling the three types of LED lights 210 to conduct. In this embodiment, the battery 72 is stored in a storage box 13, the power switch 73 is exposed on the outer surface of the storage box 13, and the three branch switches 74 are exposed on the top surface of the test platform 30, thereby facilitating worker operation.

[0032] The test probe 76 is fixed to the test holder 50. Specifically, the test holder 50 has a fixing hole (not shown), and the test probe 76 passes through and is fixed in the corresponding fixing hole. When the test holder 50 rotates, it can press the test probe 76 against the pin 230 of the circuit board 200, so that the LED 210 under test is powered on. Specifically, the test holder 50 can rotate in a disconnected position and a connected position: when the test holder 50 is in the disconnected position, the test probe 76 is separated from the circuit board 200, and the LED 210 on the circuit board 200 is de-energized; when the test holder 50 is in the connected position, the test probe 76 presses against the corresponding pin 230 of the circuit board 200, so that the LED 210 under test is powered on.

[0033] In this embodiment, the test fixture 50 is also provided with a positioning notch 56 for positioning the circuit board 200. Specifically, the top surface of the circuit board 200 in this embodiment is provided with a protrusion 250. When the protrusion 250 is housed in the positioning notch 56, the test pin 76 on the test fixture 50 rotated to the conducting position can contact the corresponding pin 230.

[0034] Please see also Figure 5 The testing instrument 100 also includes a locking assembly 80, which includes a mounting base 81, a pressing member 83, and a torsion spring 85. The mounting base 81 is fixed on the test bench 30. The pressing member 83 is rotatably connected to the mounting base 81 via a fixed shaft 86. The torsion spring 85 is sleeved on the fixed shaft 86, and its two ends elastically abut against the fixed base 53 and the pressing member 83, respectively. When the test frame 50 is in the conductive position, the elastic force of the torsion spring 85 causes the pressing member 83 to abut against the top surface of the second end 52, thereby ensuring good contact between the test pin 76 and the corresponding pin 230 during the testing process.

[0035] In this embodiment, the mounting base 81 has a receiving cavity 811. A first opening 812 communicating with the receiving cavity 811 is opened on the side of the mounting base 81 facing away from the second end 52, and a second opening 813 communicating with the receiving cavity 811 is opened on the side of the mounting base 81 facing the second end 52. In this embodiment, the pressing member 83 is generally V-shaped. The pressing member 83 includes a pressing arm 831 and a pressing arm 833 fixedly connected to one end of the pressing arm 831. The junction of the pressing arm 831 and the pressing arm 833, as well as the torsion spring 85, are all received within the receiving cavity 811. The junction of the pressing arm 831 and the pressing arm 833 is rotatably sleeved on the fixed shaft 86. One end of the torsion spring 85 elastically abuts against the pressing arm 831 or the pressing arm 833. When the test frame 50 is in the conductive position, the elastic force of the torsion spring 85 causes the pressing arm 833 to abut against the top surface of the second end 52. The free end of the pressing arm 831 is located outside the first opening 812. When the pressing arm 831 is pressed, it can rotate away from the second end 52, thereby allowing the test frame 50 to rotate toward the disconnected position. When the pressing member 83 is rotated under force, the free end of the pressing arm 833 can extend from the second opening 813 to abut against the top surface of the second end 52 or retract from the second opening 813 into the mounting base 81, thereby preventing the pressing arm 833 from obstructing the rotation of the test frame 50.

[0036] The detection component 90 includes a camera 91 and a controller (not shown). The camera 91 is installed inside the test chamber 10 and located above the test platform 30. The camera 91 can take pictures of the circuit board 200 after it is powered on, and transmit the captured image data to the controller for detection and recognition, thereby obtaining the number of LEDs 210 emitting a specified color light. Identifying the LEDs emitting a specified color light in the image data and counting the number of identified LEDs using the controller is prior art. For example, refer to the description in Chinese invention patent application No. 202010623530.7, which discloses an intelligent detection method and device for counting and recognizing LED bead keyboard backlight modules.

[0037] In this embodiment, the controller is housed within the storage box 13. Both the camera 91 and the controller can be powered by the power supply circuit, or they can be powered by connecting to an external socket via a power connector; these are existing technologies and will not be described further for brevity. The detection component 90 also includes a display (not shown), which is wirelessly connected to the controller to receive and display the detection results sent by the controller. The structure of the display is existing technology and will not be described further for brevity. The detection component 90 also includes a shooting button 75 for controlling the camera 91 to perform shooting operations; the shooting button 75 is mounted on the top surface of the test platform 30. Controlling the camera 91 to perform shooting operations via a button is existing technology and will not be described further for brevity.

[0038] When using the aforementioned testing instrument 100, the circuit board 200 is placed on the test bench 30 via the inlet / outlet 12, and the test frame 50 is rotated toward the conducting position. During this process, the position of the circuit board 200 is adjusted to ensure that the protrusion 250 on the circuit board 200 can be accommodated within the positioning notch 56 of the test frame 50. During this process, the second end 52 of the test frame 50 abuts against the pressing arm 833 of the pressing member 83, causing the pressing arm 833 to retract into the mounting base 81 under pressure, and causing the torsion spring 85 to deform under force. When the test frame 50 rotates to the conducting position, the multiple test pins 76 on it press against the corresponding pins 230 of the circuit board 200. The elastic restoring force of the torsion spring 85 causes the pressing arm 833 to extend from the second opening 813 of the mounting base 81 and abut against the end face of the second end 52 of the test frame 50.

[0039] During testing, firstly, the power switch 73 is operated to turn it on. When it is necessary to test the number of LEDs 210 that emit yellow light, the branch switch 74 corresponding to the yellow LED 210 is operated to turn it on, thus powering on the LED 210 to be tested. Then, the camera button 75 is operated to take a picture of the circuit board 200 after it is powered on through the camera 91. The camera 91 transmits the captured image data to the controller for detection and recognition, thereby obtaining the number of LEDs 210 that emit yellow light. The controller then determines whether the number of LEDs 210 emitting yellow light is equal to the preset total. If so, "Test passed" or "Test qualified" is displayed on the monitor; otherwise, "Test failed" is displayed on the monitor for further processing by the workers. If the yellow LED 210 passes the test, the branch switch 74 corresponding to the yellow LED 210 is disconnected, and the branch switch 74 corresponding to the red LED 210 is turned on. The detection component 90 then obtains the number of LEDs 210 emitting red light and determines whether the number of LEDs 210 emitting red light is equal to the preset total. If so, "Test passed" or "Test qualified" is displayed on the screen; otherwise, "Test failed" is displayed on the screen for the worker to proceed with the next step. If the red LED 210 passes the test, the branch switch 74 corresponding to the red LED 210 is disconnected, and the branch switch 74 corresponding to the green LED 210 is turned on. The detection component 90 then obtains the number of LEDs 210 emitting green light and determines whether the number of LEDs 210 emitting green light is equal to the preset total. If so, "Test passed" or "Test qualified" is displayed on the screen; otherwise, "Test failed" is displayed on the screen for the worker to proceed with the next step.

[0040] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A detector for detecting the number of lamps emitting a specified color light on a circuit board, characterized in that, The system includes a test box, a test platform, a test rack, a power supply component, and a detection component. The test box has an inlet and outlet on its side that communicate with the inner cavity of the test box. The test platform is installed in the inner cavity of the test box and is used to place the circuit board to be tested. One end of the test rack is rotatably connected to the test platform. The power supply component includes a power supply circuit and test probes electrically connected to the power supply circuit via cables. The test probes are fixed on the test rack. When the test rack rotates, it can press the test probes against the pins of the circuit board to power on the lamp to be tested. The detection component includes a camera and a controller. The camera is installed in the inner cavity of the test box and located above the test platform. The camera can take pictures of the circuit board after it is powered on and transmit the captured image data to the controller for detection and identification, thereby obtaining the number of lamps emitting a specified color light.

2. The detector as described in claim 1, characterized in that: The test fixture is able to rotate in a disconnected position and a connected position under force: when the test fixture is in the disconnected position, the test probe is separated from the circuit board and the lamp on the circuit board is de-energized; when the test fixture is in the connected position, the test probe presses against the pin of the circuit board so that the lamp to be tested is energized.

3. The detector as described in claim 2, characterized in that: The test fixture has a first end and a second end that are positioned opposite each other. The first end is located away from the inlet and outlet and is rotatably connected to the test platform.

4. The detector as described in claim 3, characterized in that: A fixed seat is mounted on the top surface of the test bench, and the fixed seat is located on the side of the test bench away from the inlet and outlet. The detector also includes a locking assembly, which includes a mounting base, a pressing member, and a torsion spring. The mounting base is fixed to the test bench, the pressing member is rotatably connected to the mounting base through a fixed shaft, and the torsion spring is sleeved on the fixed shaft with its two ends elastically abutting against the fixed base and the pressing member, respectively. When the test frame is in the conductive position, the elastic force of the torsion spring causes the pressing member to abut against the top surface of the second end.

5. The detector as described in claim 4, characterized in that: The pressing component includes a pressing arm and a pressing arm fixedly connected to one end of the pressing arm. The junction of the pressing arm and the pressing arm is rotatably sleeved on the fixed shaft. One end of the torsion spring elastically abuts against the pressing arm or the pressing arm. When the test frame is in the conducting position, the elastic force of the torsion spring causes the pressing arm to abut against the top surface of the second end.

6. The detector as described in claim 5, characterized in that: When the pressing arm is pressed, it can rotate to move away from the second end, thereby allowing the test frame to rotate toward the disconnected position.

7. The detector as described in claim 5, characterized in that: The mounting base has a receiving cavity. A first opening communicating with the receiving cavity is opened on the side of the mounting base facing away from the second end. A second opening communicating with the receiving cavity is opened on the side of the mounting base facing the second end. The junction of the pressing arm and the abutting arm and the torsion spring are both received in the receiving cavity. The free end of the pressing arm is located outside the first opening. When the abutting member is rotated under force, the free end of the abutting arm can extend or retract from the second opening.

8. The detector as described in claim 4, characterized in that: The fixed base is equipped with a connecting shaft; the first end of the test frame is provided with a rotating hole, and the test frame is rotatably sleeved on the connecting shaft through the rotating hole.

9. The detector as described in claim 1, characterized in that: The test fixture has positioning notches for positioning the circuit board.

10. The detector as described in claim 1, characterized in that: The bottom of the test box is fixed with a storage box, and the controller is stored in the storage box; the detection component also includes a display, which is connected to the controller via a wireless communication signal to receive and display the detection results sent by the controller.

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