Lifting type keyboard keycap light leakage defect detection device

Abstract

The invention relates to the technical field of keycap detection, in particular to a lifting type keyboard keycap light leakage defect detection device which comprises a workbench, a detection table is fixedly installed in the middle of the upper surface of the workbench, a light condensation frame is fixedly installed on the upper surface of the detection table, and a plurality of light condensation openings are formed in the upper surface of the light condensation frame in a penetrating mode. A plurality of backlights are fixedly mounted on the upper surface of the detection table, a frame-shaped first main magnetic strip is fixedly mounted on the outer side surface of the detection table in a sleeving manner, a matched first auxiliary magnetic strip is adhered to the upper surface of the first main magnetic strip in a magnetic attraction manner, and a light shield is fixedly mounted in the middle of the upper surface of the first auxiliary magnetic strip. In the detection process, the height of the keycap and the intensity of the received light source can be adjusted at will, so that comprehensive detection of the light transmission performance of the keycap is achieved, the light leakage effect of the keycap at different horizontal heights and light source intensities is obtained, it is guaranteed that the light transmission performance of the qualified keycap meets the design requirement, and the detection efficiency is improved. The use defect of the keycap is avoided, and the product quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of key cap detection, and in particular to a device for detecting light leakage defects of a lifting keyboard key cap. Background Art

[0002] When using a lifting keyboard, the user can adjust the height of the keyboard by moving the keycaps up and down according to their needs and preferences to adapt to different usage requirements. However, in order to enhance the aesthetics of the keyboard and the user experience, existing keycaps usually allow the backlight on the keyboard to pass through the keycaps, thereby providing a uniform and clear backlight effect when the keycaps are pressed, thereby improving the overall usage experience and visual effect of the keyboard.

[0003] In order to ensure that the light transmission performance of the keycaps still meets the design requirements after the height adjustment, and to ensure that there are no defects in the keycaps during the manufacturing process, it is necessary to perform light leakage detection on the keycaps to ensure the quality of the keyboard. The existing keycap light leakage detection equipment mostly performs light leakage detection on the keycaps at the same level during the detection process. The light leakage detection of the keycaps at different levels needs to be adjusted repeatedly, which delays the detection efficiency and is prone to detection errors. To this end, we propose a lifting keyboard keycap light leakage defect detection device. Summary of the invention

[0004] The main purpose of the present invention is to provide a device for detecting light leakage defects of a lifting keyboard keycap to overcome the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, according to the present invention, there is provided a device for detecting light leakage defects of keycaps of a lifting keyboard, comprising a workbench, a detection platform is fixedly installed in the middle of the upper surface of the workbench, a focusing frame is fixedly installed on the upper surface of the detection platform, a plurality of focusing ports are opened through the upper surface of the focusing frame, a plurality of backlights are fixedly installed on the upper surface of the detection platform, a first main magnetic strip in a frame shape is fixedly installed on the outer side surface of the detection platform, a matching first secondary magnetic strip is magnetically attached to the upper surface of the first main magnetic strip, a light shield is fixedly installed in the middle of the upper surface of the first secondary magnetic strip, a second secondary magnetic strip is fixedly installed on the upper surface of the light shield, a matching second main magnetic strip is magnetically attached to the upper surface of the second secondary magnetic strip, limiting blocks are fixedly provided in the middle of both sides of the upper surface of the second main magnetic strip, and a connecting ear is fixedly provided in the middle of the upper surface of the limiting blocks;

[0006] A frame-shaped support eaves is placed on the upper surface of the second main magnetic strip, and the middle parts of both sides of the outer surface of the support eaves are provided with limit openings matching the limit blocks, and a detection frame is fixedly provided on the inner surface of the support eaves, and a plurality of detection openings are opened through the upper surface of the detection frame;

[0007] Electric push rods are fixedly installed in the middle of both sides of the outer surface of the workbench, and fixing ears are fixedly installed on the upper surface of the electric push rods. A sealing cover is movably installed on the rear end of the upper surface of the workbench through a hinge, and a detection mechanism is embedded and fixedly installed on the sealing cover through the inner surface of the opening.

[0008] As a further improvement of the present invention, support feet are fixedly provided at four corners of the lower surface of the workbench, the lower surface of the support feet is frosted, and the plurality of backlights are located in the focusing port.

[0009] As a further improvement of the present invention, the outer side of the upper surface of the first main magnetic strip is inclined, the inner side of the lower surface of the first secondary magnetic strip matching the magnetic attraction and adhesion of the first main magnetic strip is inclined, and the light shield is a telescopic folding structure.

[0010] As a further improvement of the present invention, the outer side of the lower surface of the second main magnetic strip is arranged in an inclined shape, the inner side of the upper surface of the second secondary magnetic strip that matches the magnetic attraction and adhesion of the second main magnetic strip is arranged in an inclined shape, the inner surface of the connecting ear is provided with a thread, and the lower surface of the detection frame is aligned with the upper surface of the focusing frame.

[0011] As a further improvement of the present invention, the opening sizes of the focusing port and the detection port match the size of the keycap, support ears are fixedly provided in the middle of the four sides of the lower inner surface of the detection port, and the limit port is docked with the limit block.

[0012] As a further improvement of the present invention, adjustment openings are provided through the middle of both sides of the outer surface of the sealing cover, a positioning screw is inserted and installed through the middle of one side of the outer surface of the fixing ear, the output end of the positioning screw passes through the adjustment opening and is screwed into the connecting ear, an opening is provided in the middle of the upper surface of the sealing cover, an adjustment ring is movably installed on the inner surface of the adjustment opening, the adjustment ring is sleeved on the outer surface of the positioning screw, a light-shielding strip is installed between the outer surface of the adjustment ring and the inner top surface and inner bottom surface of the adjustment opening, and the light-shielding strip is an elastic telescopic structure.

[0013] As a further improvement of the present invention, the detection mechanism includes a central control screen, an infrared monitoring probe, a photosensitive sensor and a light source detection system:

[0014] The central control screen is located on the upper surface of the detection mechanism, the photosensitive sensors are arranged at the corresponding detection ports on the lower surface of the detection mechanism, and the infrared monitoring probes are located on the lower surface of the detection mechanism and are installed in the intervals between the photosensitive sensors.

[0015] As a further improvement of the present invention, the light source detection system includes: a database, a control module, a reading module, an analysis module and an evaluation module;

[0016] The database is used to store the light transmission performance test data of qualified keycaps at different heights and light source intensities, the light transmission performance test data including light transmission intensity, light transmission character integrity data and corresponding scoring thresholds, and the qualified keycaps are graded according to different scoring thresholds;

[0017] The control module is connected to the backlight and the electric push rod through wireless signals, and controls the backlight to adjust the light intensity and the electric push rod to adjust the lifting height according to the set detection process;

[0018] The reading module is electrically connected to the photosensitive sensor and the infrared monitoring probe, and the light transmittance of the keycap at different heights and light source intensities is monitored in real time by the photosensitive sensor to obtain the keycap light transmittance data. At the same time, the integrity of the light-transmitting characters on the keycap at different heights and light source intensities is monitored in real time by the infrared monitoring probe to obtain the keycap light transmittance integrity data. The monitoring data is acquired by the reading module and transmitted to the analysis module.

[0019] The analysis module analyzes the received monitoring data, compares the lower limit value of the real-time light transmittance intensity data with the preset qualified light transmittance intensity threshold, and screens the keycap quality according to the comparison result. If the lower limit value of the real-time light transmittance intensity data is less than the preset qualified light transmittance intensity threshold, a keycap light transmittance unqualified signal is generated, otherwise, a keycap light transmittance qualified signal is generated;

[0020] Compare the lower limit value of the real-time light-transmitting character integrity data with the preset qualified light-transmitting character integrity threshold, and screen the keycap quality according to the comparison result. If the lower limit value of the real-time light-transmitting character integrity data is less than or greater than the preset qualified light-transmitting character integrity threshold, generate a keycap light-transmitting character unqualified signal; if the lower limit value of the real-time light-transmitting character integrity data is equal to the preset qualified light-transmitting character integrity threshold, generate a keycap light-transmitting character qualified signal, and transmit the qualified signal and the corresponding monitoring data to the evaluation module;

[0021] The evaluation module selects the corresponding qualified keycaps according to the received qualified signals, matches the upper limit value of the qualified keycap monitoring data with the interval values ​​corresponding to each grade of the qualified keycaps, and completes the grade evaluation of the qualified keycaps according to the matching results.

[0022] Beneficial effects of the present invention:

[0023] The present invention performs light leakage detection on keycaps in a closed environment. During the detection process, the height of the keycaps and the intensity of the light source to which they are subjected can be arbitrarily adjusted to achieve a comprehensive detection of the light transmission performance of the keycaps. In the detection, the light leakage effects of the keycaps at different horizontal heights and light source intensities are obtained, thereby completing the screening of the keycaps to eliminate defective products, which is conducive to ensuring that the light transmission performance of qualified keycaps meets the design requirements, thereby avoiding the use defects of the keycaps and ensuring product quality.

[0024] When the present invention performs light leakage detection on the keycaps, the corresponding detection positions can be randomly placed for detection according to the size of the keycaps, thereby avoiding the need to sort the keycaps according to the keyboard format for detection, which is beneficial to improving the detection efficiency of the keycaps.

[0025] The present invention analyzes the light transmittance of qualified keycaps, classifies the qualified keycaps according to the analysis results, and confirms the use quality and applicable use status of the keycaps according to the grades, which is beneficial to ensuring the best use effect of the keycaps and improving the overall use experience and visual effect of the keyboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the expanded structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the disassembly of the workbench structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the disassembly of the detection frame structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the disassembly of the light shield structure of the present invention;

[0032] Figure 6 It is a schematic diagram of a light source detection system of the present invention.

[0033] In the figure: 1. workbench; 2. supporting feet; 3. testing table; 4. focusing frame; 5. focusing port; 6. backlight; 7. first main magnetic strip; 8. first secondary magnetic strip; 9. light shield; 10. second secondary magnetic strip; 11. second main magnetic strip; 12. limit block; 13. connecting ear; 14. testing frame; 15. testing port; 16. supporting ear; 17. supporting eaves; 18. limit port; 19. electric push rod; 20. fixing ear; 21. positioning screw; 22. sealing cover; 23. adjusting port; 24. adjusting ring; 25. light-shielding strip; 26. testing mechanism. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] Example 1

[0039] See also Figure 1 - Figure 6As shown, a lifting keyboard keycap light leakage defect detection device comprises a workbench 1, support feet 2 are fixedly provided at the four corners of the lower surface of the workbench 1, the lower surface of the support feet 2 is frosted, a detection table 3 is fixedly installed in the middle of the upper surface of the workbench 1, a focusing frame 4 is fixedly installed on the upper surface of the detection table 3, a plurality of focusing ports 5 are opened through the upper surface of the focusing frame 4, a plurality of backlights 6 are fixedly installed on the upper surface of the detection table 3, and the plurality of backlights 6 are all located in the focusing ports 5;

[0040] The support feet 2 cooperate with the frosted surface of the lower surface to stably support the workbench 1 to ensure the working effect of the workbench 1. The backlight 6 arranged on the detection platform 3 is simulated as the background light on the keyboard for light leakage detection of the keycaps. The focusing frame 4 is installed on the detection platform 3 in cooperation with the focusing port 5. The side light generated by the backlight 6 can be gathered and shielded, thereby avoiding the light source range being too large to affect the detection effect of the keycaps.

[0041] A frame-shaped first main magnetic strip 7 is fixedly mounted on the outer side surface of the detection table 3, a matching first secondary magnetic strip 8 is magnetically attached to the upper surface of the first main magnetic strip 7, a light shield 9 is fixedly mounted in the middle of the upper surface of the first secondary magnetic strip 8, the light shield 9 is a telescopic folding structure, a second secondary magnetic strip 10 is fixedly mounted on the upper surface of the light shield 9, a matching second main magnetic strip 11 is magnetically attached to the upper surface of the second secondary magnetic strip 10, a limit block 12 is fixedly mounted in the middle of both sides of the upper surface of the second main magnetic strip 11, a connecting ear 13 is fixedly mounted in the middle of the upper surface of the limit block 12, and a thread is provided on the inner surface of the connecting ear 13;

[0042] The outer side of the upper surface of the first main magnetic stripe 7 is arranged in an inclined shape, the inner side of the lower surface of the first secondary magnetic stripe 8 matching the first main magnetic stripe 7 with magnetic attraction and adhesion is arranged in an inclined shape, the outer side of the lower surface of the second main magnetic stripe 11 is arranged in an inclined shape, and the inner side of the upper surface of the second secondary magnetic stripe 10 matching the second main magnetic stripe 11 with magnetic attraction and adhesion is arranged in an inclined shape;

[0043] By magnetically sticking the first secondary magnetic strip 8 to the first main magnetic strip 7, the light shielding cover 9 can be mounted on the outside of the detection platform 3, and the keycap detection light shielding treatment can be performed by using the light shielding cover 9 to ensure the airtightness of the detection environment and improve the detection effect, and when the second secondary magnetic strip 10 is magnetically stuck to the second main magnetic strip 11, the light shielding cover 9 can support the second main magnetic strip 11.

[0044] A frame-shaped support eaves 17 is placed on the upper surface of the second main magnetic strip 11, and limiting openings 18 matching the limiting blocks 12 are provided in the middle of both sides of the outer surface of the support eaves 17, and the limiting openings 18 are docked with the limiting blocks 12, and a detection frame 14 is fixedly provided on the inner surface of the support eaves 17, and the lower surface of the detection frame 14 is aligned with the upper surface of the focusing frame 4, and a plurality of detection openings 15 are provided through the upper surface of the detection frame 14, and the opening sizes of the focusing openings 5 ​​and the detection openings 15 match the size of the key caps, and support ears 16 are fixedly provided in the middle of the four sides of the lower inner surface of the detection opening 15;

[0045] By means of the limit block 12 provided on the second main magnetic strip 11 and the limit opening 18, the support eaves 17 can be limited when placed on the second main magnetic strip 11, thereby achieving the effect of limiting the detection frame 14 to ensure the stability of the detection frame 14 during the detection process. By placing the keycap into the detection opening 15 and supporting the keycap with the support ear 16, the keycap will cover the upper surface of the focusing opening 5 to start the light leakage detection.

[0046] Electric push rods 19 are fixedly installed in the middle of both sides of the outer surface of the workbench 1, and a fixing ear 20 is fixedly installed on the upper surface of the electric push rod 19. A sealing cover 22 is movably installed at the rear end of the upper surface of the workbench 1 through a hinge. Adjustment ports 23 are penetrated in the middle of both sides of the outer surface of the sealing cover 22. A positioning screw 21 is penetrated and installed in the middle of one side of the outer surface of the fixing ear 20. The output end of the positioning screw 21 passes through the adjustment port 23 and is spirally inserted into the connecting ear 13. An adjustment ring 24 is movably installed on the inner surface of the adjustment port 23. The adjustment ring 24 is sleeved on the outer surface of the positioning screw 21. A light-shielding strip 25 is installed between the outer surface of the adjustment ring 24 and the inner top surface and inner bottom surface of the adjustment port 23. The light-shielding strip 25 is an elastic telescopic structure. An opening is opened in the middle of the upper surface of the sealing cover 22. A detection mechanism 26 is embedded and fixedly installed in the sealing cover 22 through the inner surface of the opening.

[0047] The upper surface of the workbench 1 is covered by a sealing cover 22 to maintain the airtightness of the detection environment, thereby facilitating the recording of the detection results. The connection between the fixing ear 20 and the connecting ear 13 can be completed by passing the positioning screw 21 through the adjustment port 23. At this time, the electric push rod 19 can be connected to the second main magnetic strip 11, and the electric push rod 19 can be started to control the second main magnetic strip 11 to move up and down, thereby driving the detection frame 14 to move up and down, realizing the simulation of the keycaps at different levels of keyboard use height, so as to achieve the light transmittance performance detection effect of the keycaps at different levels. The adjusting ring 24 is sleeved on the outer surface of the positioning screw 21, and the adjusting ring 24 can move synchronously with the lifting and lowering movement of the positioning screw 21 in the adjustment port 23, thereby driving the light-shielding strip 25 to retract and expand to complete the sealing of the adjustment port 23 and ensure the closedness of the detection environment.

[0048] The detection mechanism 26 includes a central control screen, an infrared monitoring probe, a photosensitive sensor and a light source detection system:

[0049] The central control screen is located on the upper surface of the detection mechanism 26, the photosensitive sensor is located on the lower surface of the detection mechanism 26 and is arranged corresponding to the detection port 15, and the infrared monitoring probe is located on the lower surface of the detection mechanism 26 and is installed in the interval between the photosensitive sensors;

[0050] The light source detection system includes: a database, a control module, a reading module, an analysis module and an evaluation module;

[0051] The database is used to store the light transmission performance test data of qualified keycaps at different heights and light source intensities, including light transmission intensity, light transmission character integrity data and corresponding scoring thresholds, and to classify qualified keycaps according to different scoring thresholds;

[0052] The control module is connected to the backlight 6 and the electric push rod 19 via wireless signals, and controls the backlight 6 to adjust the light intensity and the electric push rod 19 to adjust the lifting height according to the set detection process;

[0053] The reading module is electrically connected to the photosensitive sensor and the infrared monitoring probe, and the light transmittance of the keycap at different heights and light source intensities is monitored in real time by the photosensitive sensor to obtain the keycap light transmittance data. At the same time, the integrity of the light-transmitting characters on the keycap at different heights and light source intensities is monitored in real time by the infrared monitoring probe to obtain the keycap light transmittance integrity data. The monitoring data is acquired by the reading module and transmitted to the analysis module.

[0054] The analysis module analyzes the received monitoring data, compares the lower limit value of the real-time light transmittance intensity data with the preset qualified light transmittance intensity threshold, and screens the keycap quality according to the comparison result. If the lower limit value of the real-time light transmittance intensity data is less than the preset qualified light transmittance intensity threshold, a keycap light transmittance unqualified signal is generated, otherwise, a keycap light transmittance qualified signal is generated;

[0055] Compare the lower limit value of the real-time light-transmitting character integrity data with the preset qualified light-transmitting character integrity threshold, and screen the keycap quality according to the comparison result. If the lower limit value of the real-time light-transmitting character integrity data is less than or greater than the preset qualified light-transmitting character integrity threshold, generate a keycap light-transmitting character unqualified signal; if the lower limit value of the real-time light-transmitting character integrity data is equal to the preset qualified light-transmitting character integrity threshold, generate a keycap light-transmitting character qualified signal, and transmit the qualified signal and the corresponding monitoring data to the evaluation module;

[0056] The evaluation module selects the corresponding qualified keycaps according to the received qualified signals, matches the upper limit value of the qualified keycap monitoring data with the interval values ​​corresponding to each grade of the qualified keycaps, and completes the grade evaluation of the qualified keycaps according to the matching results.

[0057] When the present invention is used, the keycap to be tested can be first placed into the test port 15 opened on the test frame 14 according to the corresponding size. At this time, the first secondary magnetic strip 8 and the first main magnetic strip 7 can be magnetically attached and installed, and the light shielding cover 9 is installed on the outer side of the test table 3 for light shielding. At the same time, the second main magnetic strip 11 and the second secondary magnetic strip 10 set on the upper surface of the light shielding cover 9 are magnetically attached. In this case, the test frame 14 can be installed on the second main magnetic strip 11 accordingly. At this time, the keycap placed in the test port 15 can cover the upper surface of the focusing port 5, and the light leakage detection can be started with the backlight 6 as the background light;

[0058] When the keycap is ready to start light leakage monitoring, the sealing cover 22 can be closed to cover the workbench 1, and the positioning screw 21 is simultaneously passed through the fixing ear 20, the adjustment port 23 and the connecting ear 13, and the threaded connection is made with the output end of the positioning screw 21 by using the threaded connection provided on the inner surface of the connecting ear 13, so as to complete the fixed connection between the fixing ear 20 and the connecting ear 13. When the positioning screw 21 passes through the adjustment port 23, it needs to pass through the adjustment ring 24, so as to use the adjustment ring 24 to synchronously move with the positioning screw 21 to drive the light shielding strip 25 to expand and retract, so as to complete the adjustment of the adjustment port 23. The light-proof closure is formed by the light source detection system provided in the detection mechanism 26. At this time, the electric push rod 19 can be controlled to perform telescopic movement. During the telescopic movement of the electric push rod 19, the fixed ear 20 provided on its upper surface can be driven to move up and down synchronously. Since the positioning screw 21 connects the fixed ear 20 with the connecting ear 13, in this case, the connecting ear 13 can move synchronously with the fixed ear 20, thereby driving the detection frame 14 placed on the second main magnetic strip 11 to move up and down, and the key cap placed in the detection port 15 can be adjusted in height by controlling the lifting of the detection frame 14;

[0059] While the height of the keycap is being adjusted, the light source detection system provided in the detection mechanism 26 controls the backlight 6 to adjust the light source intensity, and the light transmittance intensity of the keycap under the illumination of the backlight 6 and the integrity of the translucent characters are detected by the photosensitive sensor and the infrared monitoring probe provided in the detection mechanism 26, so as to realize the light transmittance performance detection of the keycap at different horizontal heights, and display the detection results on the central control screen, and screen out defective products and qualified products according to the detection results.

[0060] Example 2

[0061] See also Figure 6As shown: the detection mechanism 26 includes a central control screen, an infrared monitoring probe, a photosensitive sensor and a light source detection system:

[0062] The central control screen is located on the upper surface of the detection mechanism 26, the photosensitive sensor is located on the lower surface of the detection mechanism 26 and is arranged corresponding to the detection port 15, and the infrared monitoring probe is located on the lower surface of the detection mechanism 26 and is installed in the interval between the photosensitive sensors;

[0063] The light source detection system includes: a database, a control module, a reading module, an analysis module and an evaluation module;

[0064] The database is used to store the light transmission performance test data of qualified keycaps at different heights and light source intensities, including light transmission intensity, light transmission character integrity data and corresponding scoring thresholds, and to classify qualified keycaps according to different scoring thresholds;

[0065] The control module is connected to the backlight 6 and the electric push rod 19 via wireless signals, and controls the backlight 6 to adjust the light intensity and the electric push rod 19 to adjust the lifting height according to the set detection process;

[0066] The reading module is electrically connected to the photosensitive sensor and the infrared monitoring probe, and the light transmittance of the keycap at different heights and light source intensities is monitored in real time by the photosensitive sensor to obtain the keycap light transmittance data. At the same time, the integrity of the light-transmitting characters on the keycap at different heights and light source intensities is monitored in real time by the infrared monitoring probe to obtain the keycap light transmittance integrity data. The monitoring data is acquired by the reading module and transmitted to the analysis module.

[0067] Specifically, the light transmission intensity data of the keycaps at different horizontal heights is obtained by using a photosensitive sensor and using a backlight 6 with different light source intensities as background light. The keycaps are divided into several use heights of the keyboard from low to high to obtain detection heights set as G1, G2, G3, ..., and the keycaps are divided into several background light intensities of the keyboard from low to high to obtain detection light intensities set as D1, D2, D3, ..., if the current keycap detection height is G1, and the detection light intensity is D1, the photosensitive sensor can generate a corresponding electrical signal according to the light transmission intensity of the keycap in this detection state, and convert it into a digital signal through a signal processor to obtain the keycap light transmission intensity data and set it as TG, and at the same time, the light transmission intensity data is sorted into TG1, TG2, TG3, ... in the detection order from low to high;

[0068] Through the infrared monitoring probe, when the keycap is at different horizontal heights, the backlight 6 with different light source intensities is used as the background light to obtain the data of the integrity of the light-transmitting characters. If the current detection height of the keycap is G1 and the detection light intensity is D1, the infrared monitoring probe can intercept the image of the integrity of the light-transmitting characters of the keycap in this detection state, obtain the data of the integrity of the light-transmitting characters and set it as ZF. At the same time, the data of the integrity of the light-transmitting characters are sorted in ascending order of the detection sequence as ZF1, ZF2, ZF3...

[0069] The analysis module analyzes the received monitoring data, compares the lower limit value of the real-time light-transmitting intensity data with the preset qualified light-transmitting intensity threshold, and screens the keycap quality according to the comparison result. If the lower limit value of the real-time light-transmitting intensity data is less than the preset qualified light-transmitting intensity threshold, a signal indicating that the light-transmitting intensity of the keycap is unqualified is generated. Otherwise, a signal indicating that the light-transmitting intensity of the keycap is qualified is generated.

[0070] Specifically: Since the light-transmitting intensity data are sorted in ascending order of the detection sequence, the detection value represented by TG1 represents its lower limit value. Compare it with the preset qualified light-transmitting intensity threshold set as THG. If TG1 < THG, a signal indicating that the light-transmitting intensity of the keycap is unqualified is generated. If TG1 > THG, a signal indicating that the light-transmitting intensity of the keycap is qualified is generated.

[0071] Compare the lower limit value of the real-time light-transmitting character integrity data with the preset qualified light-transmitting character integrity threshold, and screen the keycap quality according to the comparison result. If the lower limit value of the real-time light-transmitting character integrity data is less than or greater than the preset qualified light-transmitting character integrity threshold, a signal indicating that the light-transmitting characters of the keycap are unqualified is generated. If the lower limit value of the real-time light-transmitting character integrity data is equal to the preset qualified light-transmitting character integrity threshold, a signal indicating that the light-transmitting characters of the keycap are qualified is generated, and the qualified signal and the corresponding monitoring data are transmitted to the evaluation module.

[0072] Specifically: Since the light-transmitting character integrity data are sorted in ascending order of the detection sequence, the detection image represented by ZF1 represents its lower limit value. Compare it with the preset qualified light-transmitting character integrity threshold set as ZHG. If ZF1 < ZHG, ZF1 > ZHG, a signal indicating that the light-transmitting character integrity of the keycap is unqualified is generated. If ZF1 = ZHG, a signal indicating that the light-transmitting character integrity of the keycap is qualified is generated.

[0073] The evaluation module screens the corresponding qualified keycaps according to the received qualified signals, matches the upper limit value of the monitoring data of the qualified keycaps with the interval values corresponding to each grade of the qualified keycaps, and completes the grade evaluation of the qualified keycaps according to the matching result.

[0074] The keycaps are preset as good and excellent products, and the light transmittance data of the good keycaps is set to LP. The interval value corresponding to its grade division is the lower limit value LP0 and the upper limit value LP1 of LP. The interval value of the good keycaps is formed by (LP0, LP1). At the same time, the light transmittance data of the excellent keycaps is set to YP. The interval value corresponding to its grade division is the lower limit value YP0 and the upper limit value YP1 of YP. The interval value of the excellent keycaps is formed by (YP0, YP1). The upper limit value of the light transmittance data of the qualified keycaps is matched with the interval values ​​of the good and excellent products. The grade of the qualified keycap is determined according to the matching range of its upper limit value, and the result is displayed on the central control screen.

[0075] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A device for detecting light leakage defects of a lifting keyboard keycap, comprising a workbench (1), a detection platform (3) fixedly mounted in the middle of the upper surface of the workbench (1), a focusing frame (4) fixedly mounted on the upper surface of the detection platform (3), a plurality of focusing ports (5) penetrating the upper surface of the focusing frame (4), and a plurality of backlights (6) fixedly mounted on the upper surface of the detection platform (3), characterized in that: A first main magnetic strip (7) in the shape of a frame is fixedly mounted on the outer side surface of the detection platform (3); a first secondary magnetic strip (8) matching therewith is magnetically attached to the upper surface of the first main magnetic strip (7); a light shield (9) is fixedly mounted on the middle of the upper surface of the first secondary magnetic strip (8); a second secondary magnetic strip (10) is fixedly mounted on the upper surface of the light shield (9); a second main magnetic strip (11) matching therewith is magnetically attached to the upper surface of the second secondary magnetic strip (10); limiting blocks (12) are fixedly mounted on the middle of both sides of the upper surface of the second main magnetic strip (11); and a connecting ear (13) is fixedly mounted on the middle of the upper surface of the limiting blocks (12); A frame-shaped support eave (17) is placed on the upper surface of the second main magnetic strip (11), and limiting openings (18) matching the limiting blocks (12) are provided in the middle of both sides of the outer surface of the support eave (17), and a detection frame (14) is fixedly provided on the inner surface of the support eave (17), and a plurality of detection openings (15) are provided through the upper surface of the detection frame (14); Electric push rods (19) are fixedly mounted on the middle of both sides of the outer surface of the workbench (1), and fixing ears (20) are fixedly mounted on the upper surface of the electric push rods (19). A sealing cover (22) is movably mounted on the rear end of the upper surface of the workbench (1) through a hinge, and a detection mechanism (26) is embedded and fixedly mounted on the sealing cover (22) through the inner surface of the opening.

2. The device for detecting light leakage defects of a lifting keyboard keycap according to claim 1, characterized in that: Support legs (2) are fixedly provided at the four corners of the lower surface of the workbench (1), the lower surface of the support legs (2) is frosted, and the plurality of backlight lamps (6) are located in the focusing port (5).

3. The device for detecting light leakage defects of a lifting keyboard keycap according to claim 1, characterized in that: The outer side of the upper surface of the first main magnetic strip (7) is arranged in an inclined shape, the inner side of the lower surface of the first secondary magnetic strip (8) which matches the magnetic attraction and adhesion of the first main magnetic strip (7) is arranged in an inclined shape, and the light shield (9) is arranged in a telescopic folding structure.

4. The device for detecting light leakage defects of a lifting keyboard keycap according to claim 1, characterized in that: The outer side of the lower surface of the second main magnetic strip (11) is arranged in an inclined shape, the inner side of the upper surface of the second auxiliary magnetic strip (10) which is magnetically bonded to the second main magnetic strip (11) is arranged in an inclined shape, the inner surface of the connecting ear (13) is provided with a thread, and the lower surface of the detection frame (14) is aligned with the upper surface of the focusing frame (4).

5. The device for detecting light leakage defects of a lifting keyboard keycap according to claim 1, characterized in that: The opening dimensions of the light focusing port (5) and the detection port (15) match the dimensions of the key cap, and support ears (16) are fixedly provided at the middle of the four sides of the lower inner surface of the detection port (15), and the limit port (18) is docked with the limit block (12).

6. The device for detecting light leakage defects of a lifting keyboard keycap according to claim 1, characterized in that: The sealing cover (22) is provided with adjustment openings (23) in the middle of both sides of the outer surface, a positioning screw (21) is inserted and installed in the middle of one side of the outer surface of the fixing ear (20), the output end of the positioning screw (21) passes through the adjustment opening (23) and is screwed into the connecting ear (13), an opening is provided in the middle of the upper surface of the sealing cover (22), an adjustment ring (24) is movably installed on the inner surface of the adjustment opening (23), the adjustment ring (24) is sleeved on the outer surface of the positioning screw (21), a light-shielding strip (25) is installed between the outer surface of the adjustment ring (24) and the inner top surface and inner bottom surface of the adjustment opening (23), and the light-shielding strip (25) is an elastic telescopic structure.

7. The device for detecting light leakage defects of a lifting keyboard keycap according to claim 1, characterized in that: The detection mechanism (26) includes a central control screen, an infrared monitoring probe, a photosensitive sensor and a light source detection system: The central control screen is located on the upper surface of the detection mechanism (26), the photosensors are arranged at the detection ports (15) corresponding to the lower surface of the detection mechanism (26), and the infrared monitoring probes are located on the lower surface of the detection mechanism (26) and are installed in the intervals between the photosensors.

8. The device for detecting light leakage defects of a lifting keyboard keycap according to claim 7, characterized in that: The light source detection system includes: a database, a control module, a reading module, an analysis module and an evaluation module; The database is used to store the light transmission performance test data of qualified keycaps at different heights and light source intensities, the light transmission performance test data including light transmission intensity, light transmission character integrity data and corresponding scoring thresholds, and the qualified keycaps are graded according to different scoring thresholds; The control module is connected to the backlight (6) and the electric push rod (19) via wireless signals, and controls the backlight (6) to adjust the light intensity and controls the electric push rod (19) to adjust the lifting height according to the set detection process; The reading module is electrically connected to the photosensitive sensor and the infrared monitoring probe, and the light transmittance of the keycap at different heights and light source intensities is monitored in real time by the photosensitive sensor to obtain the keycap light transmittance data. At the same time, the integrity of the light-transmitting characters on the keycap at different heights and light source intensities is monitored in real time by the infrared monitoring probe to obtain the keycap light transmittance integrity data. The monitoring data is acquired by the reading module and transmitted to the analysis module. The analysis module analyzes the received monitoring data, compares the lower limit value of the real-time light transmittance intensity data with the preset qualified light transmittance intensity threshold, and screens the keycap quality according to the comparison result. If the lower limit value of the real-time light transmittance intensity data is less than the preset qualified light transmittance intensity threshold, a keycap light transmittance unqualified signal is generated, otherwise, a keycap light transmittance qualified signal is generated; Compare the lower limit value of the real-time light-transmitting character integrity data with the preset qualified light-transmitting character integrity threshold, and screen the keycap quality according to the comparison result. If the lower limit value of the real-time light-transmitting character integrity data is less than or greater than the preset qualified light-transmitting character integrity threshold, generate a keycap light-transmitting character unqualified signal; if the lower limit value of the real-time light-transmitting character integrity data is equal to the preset qualified light-transmitting character integrity threshold, generate a keycap light-transmitting character qualified signal, and transmit the qualified signal and the corresponding monitoring data to the evaluation module; The evaluation module selects the corresponding qualified keycaps according to the received qualified signals, matches the upper limit value of the qualified keycap monitoring data with the interval values ​​corresponding to each grade of the qualified keycaps, and completes the grade evaluation of the qualified keycaps according to the matching results.

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