LED segment code screen display panel detection bench based on single-chip microcomputer

Abstract

The utility model discloses an LED segment code screen display panel detection bench based on a single-chip microcomputer, which belongs to the field of detection devices and comprises a test base, a test support is mounted at the upper end of the test base, an electric push rod is mounted on the side wall of the test support, and a retention plate is mounted at the output end of the electric push rod. Test pressing plates are installed at the two ends of the retention plate, a display panel is conveniently fixed through the test pressing plates and the retention tray, so that the stability of the display panel is conveniently kept, the sliding test pressing plates are limited through the auxiliary sliding plate, so that the test pressing plates are conveniently kept stable during sliding, and meanwhile, through the acousto-optic detector and the acousto-optic alarm, the display panel can be conveniently tested. According to the display panel, the local circuit smoothness of the display panel can be conveniently and visually displayed, so that the non-smooth local unit of the circuit of the display panel can be conveniently and quickly displayed, and the detection plate and the probe can be conveniently maintained through the top opening cover and the side cover.

Description

Technical Field

[0001] This utility model relates to the field of testing devices, and more specifically, to a testing station for LED segment code display boards based on a microcontroller. Background Technology

[0002] LED segment display screens require low cost and stable performance, and are currently widely used in home appliances. The display circuit boards all need to undergo functional testing after production.

[0003] Currently, the following two methods are commonly used to test the display function of this type of display circuit board:

[0004] One method is manual inspection, which involves manual operation and subjective judgment of whether the display panel is functioning properly. This method relies too heavily on the experience and skill of the inspectors. Due to the glaring lights, prolonged inspection can easily cause visual fatigue for the inspectors, leading to incorrect or missed inspections, resulting in a high product defect rate and posing significant quality risks.

[0005] Another method is to use visual equipment for inspection. This method uses visual equipment to observe and judge the LED segment display instead of human eyes. Theoretically, this method can solve the visual fatigue caused by light. However, since LED displays generally use scanning rather than static display, the visual recognition principle is to take pictures and sample for recognition. To accurately identify the display status of the digital tube, a large number of samples need to be compared, which places extremely high demands on the computing power of the inspection equipment, resulting in high prices for the inspection equipment and a long inspection time. Therefore, we have proposed an LED segment display board inspection station based on a microcontroller. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] To address the problems existing in the prior art, the purpose of this utility model is to provide a microcontroller-based LED segment display board testing station. It uses a test plate and a retaining tray to easily fix the display board, thus maintaining its stability. An auxiliary sliding plate limits the movement of the test plate, ensuring stability during sliding. Simultaneously, an audible and visual detector and an audible and visual alarm provide a convenient and intuitive display of the continuity of local circuits on the display board, allowing for quick and easy identification of any circuit malfunctions. Furthermore, the top and side covers facilitate easy maintenance of the testing board and probes.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] A microcontroller-based LED segment display board testing station includes a test base, a test bracket mounted on the upper end of the test base, an electric push rod mounted on the side wall of the test bracket, a retaining plate mounted on the output end of the electric push rod, test pressure plates mounted on both ends of the retaining plate, two symmetrically arranged auxiliary sliding plates mounted on the side wall of the test pressure plate, two symmetrically arranged limiting posts mounted on the side wall of the test base, the auxiliary sliding plates slidingly connected to adjacent limiting posts, symmetrically arranged insert blocks mounted on the lower end of the test pressure plate, two symmetrically arranged retaining trays mounted on the upper end of the test base, multiple auxiliary support blocks mounted on the opposing side walls of the two retaining trays, a detection plate mounted on the inner wall of the test base, and a probe and an acoustic-optical detector mounted on the upper end of the detection plate.

[0011] Furthermore, an audible and visual alarm is installed on the side wall of the test bracket. The audible and visual alarm is electrically connected to the test board. The audible and visual alarm includes an indicator light and a buzzer alarm, which facilitates the display of the smooth operation of the display board through the display light.

[0012] Furthermore, a retaining block is installed in the inner cavity of the test base, the detection plate is set on the upper end of the retaining block, the upper end of the test base is connected to a top cover by bolts and threads, and the side wall of the test base is connected to a side cover by bolts and threads, so that the detection plate and probe in the inner cavity of the test base can be easily maintained by opening the top cover and the side cover.

[0013] Furthermore, the side wall of the test bracket is provided with a sliding groove, the side wall of the auxiliary slide plate is adapted to the sliding groove, the auxiliary slide plate is provided with a sliding hole, and the limiting post is slidably connected to the sliding hole, so that the limiting post and the sliding groove can limit the auxiliary slide plate, thereby facilitating the stability of the test pressure plate when it slides.

[0014] Furthermore, a display screen is installed on the side wall of the test base, and the display screen is electrically connected to the test board to facilitate the display of test results.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This utility model uses a test plate and a fixed tray to easily fix the display board, thereby facilitating the stability of the display board. The auxiliary slide plate limits the sliding test plate, thus facilitating the stability of the test plate when it slides. At the same time, the sound and light detector and the sound and light alarm facilitate the intuitive display of the circuit continuity of the display board, thus facilitating the quick display of the local unit where the circuit is not smooth. The top cover and side cover are easy to open, thus facilitating the maintenance of the test board and probe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Test base; 2. Test bracket; 3. Electric push rod; 4. Fixing plate; 5. Test pressure plate; 6. Auxiliary slide plate; 7. Limiting post; 8. Insertion block; 9. Fixing tray; 10. Auxiliary support block; 11. Detection plate; 12. Probe; 13. Sound and light detector; 14. Sound and light alarm. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1: Please refer to Figure 1 and Figure 2A microcontroller-based LED segment display board testing station includes a test base 1, a test bracket 2 mounted on the upper end of the test base 1, an electric push rod 3 mounted on the side wall of the test bracket 2, a retaining plate 4 mounted on the output end of the electric push rod 3, test pressure plates 5 mounted on both ends of the retaining plate 4, two symmetrically arranged auxiliary sliding plates 6 mounted on the side wall of the test pressure plate 5, two symmetrically arranged limiting posts 7 mounted on the side wall of the test base 1, the auxiliary sliding plates 6 being slidably connected to the adjacent limiting posts 7, symmetrically arranged insert blocks 8 mounted on the lower end of the test pressure plate 5, two symmetrically arranged retaining trays 9 mounted on the upper end of the test base 1, multiple auxiliary support blocks 10 mounted on the opposing side walls of the two retaining trays 9, a detection plate 11 mounted on the inner wall of the test base 1, and a probe 12 and an acoustic-optical detector 13 mounted on the upper end of the detection plate 11.

[0026] A sound and light alarm 14 is installed on the side wall of the test bracket 2. The sound and light alarm 14 is electrically connected to the test board 11. The sound and light alarm 14 includes an indicator light and a buzzer alarm, which facilitates the display board's smooth operation by displaying the indicator light.

[0027] The test base 1 has a retaining block installed in its inner cavity. The detection plate 11 is set on the upper end of the retaining block. The upper end of the test base 1 is connected to a top cover by bolts and threads. The side wall of the test base 1 is connected to a side cover by bolts and threads. This allows for easy maintenance of the detection plate 11 and probe 12 in the inner cavity of the test base 1 by opening the top cover and the side cover.

[0028] The side wall of the test bracket 2 is provided with a sliding groove, the side wall of the auxiliary slide plate 6 is adapted to the sliding groove, the auxiliary slide plate 6 is provided with a sliding hole, and the limiting post 7 is slidably connected to the sliding hole, so that the limiting post 7 and the sliding groove can limit the auxiliary slide plate 6, thereby making it easier for the test pressure plate 5 to remain stable when sliding.

[0029] A display screen is installed on the side wall of the test base 1. The display screen is electrically connected to the test board 11 to facilitate the display of test results.

[0030] In use, a technician in the field places the display panel on the upper surface of the test base 1 and limits its position using the retaining tray 9 and auxiliary support block 10. Simultaneously, the electric push rod 3 is activated, pushing the test pressure plate 5 down via the retaining plate 4. During this process, the limiting post 7 limits the test pressure plate 5 via the auxiliary sliding plate 6, thus facilitating stable sliding of the test pressure plate 5. This, in turn, facilitates the limiting of the display panel by the test pressure plate 5 and the insert block 8. At the same time, the audible and visual alarm 14, probe 12, detection plate 11, and audible and visual detector 13 are activated. The probe 12 connects to the display panel for easy testing. If the display panel is obstructed, the indicator light on the audible and visual alarm 14 will illuminate. The indicator light on the display panel is red, and the buzzer alarm sounds. If the display panel is clear, the indicator light on the audible and visual alarm 14 is green, and the test result is displayed on the screen. This utility model uses the test plate 5 and the fixing tray 9 to easily fix the display panel, thereby facilitating the stability of the display panel. The auxiliary slide plate 6 limits the sliding test plate 5, thereby facilitating the stability of the test plate 5 when it slides. At the same time, the audible and visual detector 13 and the audible and visual alarm 14 can easily and intuitively display the continuity of the circuit in a certain part of the display panel, thereby facilitating the quick display of the local unit where the circuit is not clear. The top cover and side cover can be opened to facilitate the maintenance of the test plate 11 and the probe 12.

[0031] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be covered within the protection scope of this utility model.

Claims

1. A microcontroller-based LED segment code display board testing station, comprising a test base (1), characterized in that: The test base (1) is equipped with a test bracket (2) at its upper end. An electric push rod (3) is installed on the side wall of the test bracket (2). A retaining plate (4) is installed at the output end of the electric push rod (3). Test pressure plates (5) are installed at both ends of the retaining plate (4). Two symmetrically arranged auxiliary sliding plates (6) are installed on the side wall of the test pressure plate (5). Two symmetrically arranged limiting posts (7) are installed on the side wall of the test base (1). The auxiliary sliding plate (6) is slidably connected to the adjacent limiting post (7). A symmetrically arranged inserting block (8) is installed at the lower end of the test pressure plate (5). Two symmetrically arranged retaining trays (9) are installed at the upper end of the test base (1). Multiple auxiliary support blocks (10) are installed on the opposing side walls of the two retaining trays (9). A detection plate (11) is installed on the inner wall of the test base (1). A probe (12) and an acoustic-optical detector (13) are installed at the upper end of the detection plate (11).

2. The LED segment code display board detection station based on a single-chip microcomputer according to claim 1, characterized in that: The side wall of the test bracket (2) is equipped with an audible and visual alarm (14), which is electrically connected to the test board (11). The audible and visual alarm (14) includes an indicator light and a buzzer alarm.

3. The LED segment code display board detection station based on a single-chip microcomputer according to claim 1, characterized in that: The test base (1) has a retaining block installed in its inner cavity. The detection plate (11) is located on the upper end of the retaining block. The upper end of the test base (1) is connected to a top cover by bolts and threads. The side wall of the test base (1) is connected to a side cover by bolts and threads.

4. The LED segment code display board detection station based on a single-chip microcomputer according to claim 1, characterized in that: The side wall of the test bracket (2) is provided with a sliding groove, the side wall of the auxiliary slide plate (6) is adapted to the sliding groove, the auxiliary slide plate (6) is provided with a sliding hole, and the limiting post (7) is slidably connected to the sliding hole.

5. The LED segment code display board detection station based on a single-chip microcomputer according to claim 3, characterized in that: The test base (1) is equipped with a display screen on its side wall, and the display screen is electrically connected to the test board (11).

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