A keyboard backlight module light effect testing device

Abstract

The present invention relates to the field of automated processing technology, and discloses a keyboard backlight module light effect test device, including a base, a guide rail is arranged on the top of the base; a carrier mechanism is arranged on the surface of the guide rail, the carrier mechanism includes a plurality of carriers, the plurality of carriers are connected by a synchronization component, a support plate for carrying a keyboard backlight module is arranged on the surface of the carrier, a sensor transmitting end is fixedly connected inside the carrier, a through hole adapted to the sensor transmitting end is provided on the surface of the carrier, a square groove is provided on the surface of the carrier, two synchronous shafts are rotatably connected to the inner wall of the square groove, a synchronous belt is connected to the surface of the two synchronous shafts, a motor A is fixedly connected to the inner wall of the square groove, and the output end of the motor A is axially fixedly connected to one of the synchronous shafts. The present invention solves the problem that the existing flexible backlight module FPC connecting line is difficult to light up for detection after being skewed and bent.

Description

Technical Field

[0001] The present invention relates to the field of automated processing technology, and more specifically, to a keyboard backlight module light effect testing device. Background Art

[0002] The computer's keyboard backlight module is usually installed under the keyboard. It provides visual lighting to improve the overall applicability of the keyboard under poor lighting conditions. There are usually solid color backlight modules and color backlight modules. Existing keyboard backlight modules usually need to be lit up for lighting effect testing after assembly.

[0003] The light effect test of the keyboard backlight module is mostly carried out using visual inspection equipment, that is, the keyboard backlight module FPC is connected and lit through the power contacts, and after the inspection jig is closed, the light effect is inspected by a visual inspection camera.

[0004] At present, keyboard backlight modules are mainly divided into flexible modules and rigid modules. When conducting light effect tests on flexible modules, since their FPC connecting wires are soft connecting wires and suction cups are often used for transportation of flexible backlight modules, the FPC connecting wires will sag during movement, and are often skewed or bent due to factors such as obstacles. As a result, when the flexible backlight module is placed on the surface of the detection mold, the FPC connecting wires are not in the normal connection position. In this way, after the power connection contacts are buckled, the backlight module is difficult to connect and light up, requiring manual correction and secondary inspection, which is time-consuming and labor-intensive. Summary of the invention

[0005] The present invention provides a keyboard backlight module light effect testing device to solve the technical problems raised in the above background technology.

[0006] The present invention provides a keyboard backlight module light effect testing device, comprising a base, wherein a guide rail is arranged on the top of the base;

[0007] A carrier mechanism is arranged on the surface of the guide rail, and the carrier mechanism includes a plurality of carriers, and the plurality of carriers are connected by a synchronization component, and a support plate for carrying a keyboard backlight module is arranged on the surface of the carrier, and a sensor transmitting end is fixedly connected inside the carrier, and a through hole adapted to the sensor transmitting end is provided on the surface of the carrier, and a square groove is provided on the surface of the carrier, and two synchronous shafts are rotatably connected to the inner wall of the square groove, and the surfaces of the two synchronous shafts are transmission-connected with a synchronous belt, and a motor A is fixedly connected to the inner wall of the square groove, and the output end of the motor A is axially fixedly connected to one of the synchronous shafts;

[0008] A detection frame is fixedly connected to the surface of the base, a visual detection probe for detecting the light effect of the backlight module is installed on the surface of the detection frame, a movable block is slidably connected to the inner wall of the detection frame, the movable block is connected to the detection frame through a driving mechanism, a sensor receiving end adapted to the sensor transmitting end is also arranged on the surface of the movable block, and a connection contact strip for connecting the keyboard backlight module FPC is arranged at the bottom of the movable block;

[0009] It also includes an adjustment component for lifting the keyboard backlight module to facilitate the FPC to return to the correct position.

[0010] Preferably, the adjustment assembly includes a pull plate slidably connected to the inside of the carrier, one end of the pull plate is slidably connected to a connecting rod, the upper end of the connecting rod is hinged to the support plate, a slide rail is fixedly connected to the bottom of the carrier, the lower end of the connecting rod is slidably connected to the surface of the slide rail, the carrier is rotatably connected to a gear shaft on the side close to the detection frame, the surface of the pull plate is provided with a rack matching the gear shaft, and the pull plate is meshed with the gear shaft, an auxiliary block is fixedly connected to the top of the movable block, an auxiliary plate is slidably connected to the inside of the auxiliary block, a tooth groove matching the gear shaft is provided on the surface of the auxiliary plate, and the auxiliary plate is connected to the auxiliary block through a cylinder.

[0011] Preferably, two protrusions are fixedly connected to the lower surface of the support plate, and the surface of the carrier plate is provided with grooves adapted to the protrusions.

[0012] Preferably, the protrusion is connected to the carrier plate via a tension spring.

[0013] Preferably, it also includes a positioning component for aligning the FPC, the positioning component includes a guide block fixedly connected to the surface of the pulling plate, the surface of the guide block is provided with a guide groove, and a slider is slidably connected through the guide groove, both ends of the slider are fixedly connected to a positioning plate, the surface of the carrier is provided with a through groove adapted to the positioning plate, a fixed block adapted to the slider is fixedly connected inside the carrier, and one side of the fixed block is inclined.

[0014] Preferably, the positioning plate is arc-shaped, and two positioning plates are arranged on both sides of the synchronous belt.

[0015] Preferably, the surface of the carrier plate is fixedly connected with limit blocks for limiting the FPC connector on both sides close to the through hole, and the bottom of the movable block is provided with a limit groove adapted to the limit block.

[0016] Preferably, the synchronization component includes a connecting frame rotatably connected to the inner wall of the base, the connecting frame is fixedly connected to a plurality of carriers respectively, and the base is connected to the connecting frame via a motor B.

[0017] Preferably, the driving mechanism comprises a motor C fixedly connected to the top of the detection frame, the output end of the motor C is fixedly connected to a screw rod, the screw rod is passed through the interior of the detection frame, and the screw rod is threadedly connected to the movable block.

[0018] Preferably, a detection jig adapted to the support plate is fixedly connected to the surface of the movable block.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention sets a synchronous belt which is convenient for resetting the FPC connecting wire. The bent FPC connecting wire is pushed forward and reset through the continuous transmission of the synchronous belt. In addition, the positioning plate is set to move the FPC connecting wire from the connecting end between the keyboard backlight module and the FPC, and the FPC connecting wire is kept between the two positioning plates, thereby correcting the skewed FPC connecting wire and improving the stability of the entire light effect visual detection process.

[0021] 2. The present invention arranges a sensor transmitting end on the surface of the carrier and a sensor receiving end on the surface of the movable block accordingly. Under normal conditions, the FPC connecting line is not skewed or bent, and the through hole is blocked at this time, preventing the signal emitted by the sensor transmitting end from being received by the receiving end. At this time, the light effect detection of the keyboard backlight module can be carried out normally. Once the FPC connecting line is misaligned, skewed, or bent, the through hole is unobstructed, resulting in the sensor transmitting end and the receiving end being connected to each other, which can trigger the correction of the FPC connecting line. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the present invention for displaying synchronization components;

[0024] Figure 3 It is a schematic diagram of the present invention for showing a state when one of the carriers is aligned with the detection frame;

[0025] Figure 4 It is a schematic diagram of the present invention for showing the carrier plate and its surrounding structures after the detection jig is removed;

[0026] Figure 5 The present invention Figure 4 A in the enlarged view;

[0027] Figure 6 This is a bottom view of the present invention for showing the structure of the lower end of the movable block;

[0028] Figure 7 It is a cross-sectional view of the present invention for showing the internal structure of the carrier plate;

[0029] Figure 8It is a cross-sectional view of the present invention for showing the internal state of the carrier after the support plate is raised;

[0030] Fig. 9 is a schematic diagram of the present invention for showing the surface of the carrier plate after the support plate is removed;

[0031] Fig.10 It is a schematic diagram of the bottom structure of the support plate used in the present invention.

[0032] In the figure: 1. base; 11. guide rail; 2. carrier plate; 21. support plate; 211. convex block; 212. tension spring; 22. limit block; 221. through hole; 222. sensor transmitting end; 23. pull plate; 231. connecting rod; 232. slide rail; 233. synchronous shaft; 234. synchronous belt; 235. motor A; 236. gear shaft; 24. guide block; 241. slider; 242. positioning plate; 243. fixed block; 25. connecting frame; 251. motor B; 3. detection frame; 31. visual detection probe; 32. movable block; 321. motor C; 322. screw; 323. sensor receiving end; 324. contact strip; 325. detection jig; 33. auxiliary block; 331. cylinder; 332. auxiliary plate. DETAILED DESCRIPTION

[0033] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace, or add various processes or components as needed. In addition, the features described in some examples may also be combined in other examples.

[0034] In one embodiment of the present invention, names are disclosed, such as Figure 1-Figure 10As shown, it includes: a base 1, a guide rail 11 is arranged on the top of the base 1, the base 1 and the guide rail 11 are connected to each other by welding or bolting, and the base 1 is circular; a carrier mechanism is arranged on the surface of the guide rail 11, and the carrier mechanism includes a plurality of carriers 2. Specifically, the number of the carriers 2 should be at least three. Three are shown in this article because it is necessary to ensure that when the backlight module on the surface of one carrier 2 is subjected to light effect detection, the other two carriers 2 meet the needs of loading and unloading, and cooperate with the guide rail 11 to form a cycle. The plurality of carriers 2 are connected by a synchronization component, and the synchronization component enables the plurality of carriers 2 to slide synchronously on the surface of the guide rail 11. The surface of the carrier 2 is provided with A support plate 21 for carrying a keyboard backlight module, a sensor transmitting end 222 is fixedly connected inside the carrier plate 2, a through hole 221 adapted to the sensor transmitting end 222 is provided on the surface of the carrier plate 2, a square groove is provided on the surface of the carrier plate 2, two synchronous shafts 233 are rotatably connected to the inner wall of the square groove, and the surfaces of the two synchronous shafts 233 are transmission-connected with a synchronous belt 234, the synchronous belt 234 is made of rubber or nylon, and the setting position of the synchronous belt 234 is adapted to the lead-out position of the keyboard backlight module FPC connecting line, a motor A235 is fixedly connected to the inner wall of the square groove, and the output end of the motor A235 is axially fixedly connected to one of the synchronous shafts 233.

[0035] The detection frame 3 is fixedly connected to the surface of the base 1. A visual detection probe 31 for detecting the light effect of the backlight module is installed on the surface of the detection frame 3. The visual detection probe 31 is a visual detection camera probe. The light effect detection of the keyboard backlight module is performed by the visual detection camera. This is a prior art and will not be repeated here. A movable block 32 is slidably connected to the inner wall of the detection frame 3. The movable block 32 is connected to the detection frame 3 through a driving mechanism. A sensor receiving end 323 adapted to the sensor transmitting end 222 is also provided on the surface of the movable block 32. A connection contact strip 324 for connecting the keyboard backlight module FPC is provided at the bottom of the movable block 32. The connection contact strip 324 is a copper contact strip and is connected to an external power supply. It also includes an adjustment component for lifting the keyboard backlight module to facilitate the return of the FPC. The sensor in the sensor transmitting end 222 is a photoelectric sensor, and the sensor receiving end 323 is a photoelectric sensor receiver.

[0036] Specifically, a plurality of carriers 2 are rotated on the surface of the guide rail 11 through the synchronization component, and then the carrier 2 where the keyboard backlight module to be inspected is located is moved to the bottom of the visual inspection probe 31. At this time, the other two groups of carriers 2 are connected to the external loading and unloading mechanism to complete the loading and unloading of the flexible keyboard backlight module. The state of the FPC connecting line is judged by whether the sensor transmitting end 222 can transmit the signal and the sensor receiving end 323 can receive it. If the FPC connecting line is skewed or bent, the synchronous shaft 233 is driven to rotate by the motor A235. Then the transmission timing belt 234 is driven, and when the FPC connecting line contacts the timing belt 234, it will be driven forward by the timing belt 234, thereby completing the reset. During this process, the adjustment component lifts the keyboard backlight module to prevent the FPC connecting line from bending. At the same time, the driving mechanism stops driving the movable block 32 downward, thereby pausing the detection process, and continuing the detection process after the FPC connecting line returns to the correct position. Under normal conditions, the FPC connecting line is not skewed or bent, and when placed normally, it will block the through hole 221 and block the sensor transmitting end 222 from transmitting signals.

[0037] like Figures 6 to 8 As shown, in this embodiment, the adjustment component includes a pull plate 23 slidably connected to the inside of the carrier 2, the pull plate 23 is "L" shaped, one end of the pull plate 23 is slidably connected to a connecting rod 231, the connecting rod 231 slides up and down on the surface of the pull plate 23, the upper end of the connecting rod 231 is hinged to the support plate 21, and the bottom of the carrier 2 is fixedly connected to a slide rail 232, the lower end of the connecting rod 231 is slidably connected to the surface of the slide rail 232, under normal conditions, the connecting rod 231 is in an inclined state, and when it stands up, it pushes up the support plate 21, and the carrier A gear shaft 236 is rotatably connected to the side close to the detection frame 3, a rack matching the gear shaft 236 is provided on the surface of the pull plate 23, and the pull plate 23 is meshed with the gear shaft 236, an auxiliary block 33 is fixedly connected to the top of the movable block 32, an auxiliary plate 332 is slidably connected inside the auxiliary block 33, a tooth groove matching the gear shaft 236 is provided on the surface of the auxiliary plate 332, and the auxiliary plate 332 is connected to the auxiliary block 33 through a cylinder 331, and both ends of the cylinder 331 are fixedly connected to the auxiliary plate 332 and the auxiliary block 33 respectively.

[0038] Specifically, after the signal transmitted by the sensor transmitting end 222 is received by the sensor receiving end 323, the cylinder 331 is output in synchronization with the transmission of the synchronous belt 234, pushing the auxiliary plate 332 downward and engaging it with the gear shaft 236. In the process of continuing to move downward, the gear shaft 236 is rotated, thereby driving the pull plate 23 engaged with the gear shaft 236 to be pulled outward, pulling the inclined connecting rod 231 toward the vertical position, and the lower end of the connecting rod 231 slides in the slide rail 232 and gradually stands upright, thereby pushing the support plate 21 upward, driving the keyboard backlight module on its surface to lift up, avoiding affecting the return of the FPC connecting line.

[0039] Furthermore, two protrusions 211 are fixedly connected to the lower surface of the support plate 21, and grooves adapted to the protrusions 211 are opened on the surface of the carrier 2. The protrusions 211 slide in the grooves, and the protrusions 211 are limited by the grooves, thereby ensuring the stability of the support plate 21 during the upward movement.

[0040] Furthermore, in this embodiment, the protrusion 211 is connected to the carrier plate 2 through a tension spring 212, and the two ends of the tension spring 212 are fixedly connected to the protrusion 211 and the carrier plate 2 respectively. The protrusion 211 is pulled by the tension spring 212 to facilitate the return of the support plate 21 after moving up.

[0041] It also includes a positioning component for straightening the FPC, the positioning component includes a guide block 24 fixedly connected to the surface of the pull plate 23, the surface of the guide block 24 is provided with a guide groove, and a slider 241 is slidably connected through the guide groove, the slider 241 is limitedly slid in the guide groove, and the slider 241 is not cylindrical, but is a long strip or square to prevent it from rotating in the guide groove, both ends of the slider 241 are fixedly connected with a positioning plate 242, the surface of the carrier 2 is provided with a through groove adapted to the positioning plate 242, and a fixed block 243 adapted to the slider 241 is fixedly connected inside the carrier 2, and one side of the fixed block 243 is inclined.

[0042] Specifically, in the process of the pulling plate 23 being pulled outward, the guide block 24 will move synchronously, thereby driving the slider 241 in the guide groove to move toward the inclined side of the fixed block 243. In the process of continuous movement, the slider 241 is affected by the inclined surface of one side of the fixed block 243 and continuously moves upward, thereby driving the positioning plates 242 on both sides to move upward and pass through the through groove. It is worth noting that the two positioning plates 242 are arranged at the connection position between the keyboard backlight module and the fpc connecting line led out from its surface, so that after the positioning plate 242 passes through the through groove, it can be positioned from the root of the fpc connecting line, and in the process of its continuous forward movement, the crooked fpc connecting line can be straightened, thereby facilitating the transmission of the synchronous belt 234 to return the fpc connecting line to the right position.

[0043] Furthermore, in this embodiment, the positioning plate 242 is arc-shaped, and the arc-shaped surface prevents damage to the FPC connecting line during movement, and the two positioning plates 242 are arranged on both sides of the synchronous belt 234. Being arranged on both sides of the synchronous belt 234 is convenient for guiding the FPC connecting line to the surface of the synchronous belt 234, so as to facilitate returning to the correct position.

[0044] like Figure 5 and Figure 6As shown, in this embodiment, limit blocks 22 for limiting the FPC connector are fixedly connected on both sides of the surface of the carrier 2 near the through hole 221, and the spacing between the two limit blocks 22 is adapted to the width of the FPC connector. Under normal conditions, the FPC connector is located between the two limit blocks 22, so that it is convenient for the connection contact strip 324 to accurately contact and connect the FPC connector. A limit groove adapted to the limit block 22 is provided at the bottom of the movable block 32, and the limit block 22 is inserted into the limit groove, which is convenient for positioning the connection position of the connection contact strip 324.

[0045] like Figure 2 As shown, in this embodiment, the synchronization component includes a connecting frame 25 rotatably connected to the inner wall of the base 1, the connecting frame 25 is respectively fixedly connected to a plurality of carriers 2, and the spacing between the plurality of carriers 2 is considerable, and the base 1 is connected to the connecting frame 25 through a motor B251, the motor B251 is fixedly connected at the bottom center position of the base 1, and its output end is fixedly connected to the connecting frame 25, the motor B251 is a stepping motor, and the output of the motor B251 can drive the connecting frame 25 to rotate, so that the plurality of carriers 2 rotate synchronously.

[0046] The driving mechanism includes a motor C321 fixedly connected to the top of the detection frame 3, and a screw 322 is fixedly connected to the output end of the motor C321. The screw 322 is inserted into the interior of the detection frame 3, and the screw 322 is threadedly connected to the movable block 32. The output of the motor C321 drives the screw 322 to rotate, thereby cooperating to make the movable block 32 move up and down in the detection frame 3.

[0047] It is worth noting that controllers can be respectively arranged in the carrier 2 and the detection frame 3. The controller located in the carrier 2 is electrically connected to the sensor transmitting end 222 and the motor A235 respectively, and the controller in the detection frame 3 is electrically connected to the sensor receiving end 323, the motor C321, the visual detection probe 31, and the cylinder 331 respectively. After the transmission signal of the sensor transmitting end 222 is received by the sensor receiving end 323, the sensor receiving end 323 transmits the received signal to the controller located in the detection frame 3, and the sensor transmitting end 222 transmits the received return signal to the controller located in the carrier 2, and then the operation of each component is controlled by the two controllers respectively.

[0048] A detection jig 325 adapted to the support plate 21 is fixedly connected to the surface of the movable block 32. The detection jig 325 is used to avoid external light interference during the detection process and protect the flexible keyboard backlight module. During the detection process, the detection jig 325 will move down with the movable block 32 and cover the surface of the flexible keyboard backlight module.

[0049] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation mode. The above-mentioned specific implementation mode is merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make more forms of equivalent embodiments, all of which are within the protection of this embodiment.

Claims

1. A keyboard backlight module light effect testing device, characterized in that: include: A base (1), wherein a guide rail (11) is arranged on the top of the base (1); A carrier mechanism is arranged on the surface of the guide rail (11), the carrier mechanism comprises a plurality of carriers (2), the plurality of carriers (2) are connected via a synchronization component, a support plate (21) for carrying a keyboard backlight module is arranged on the surface of the carrier (2), a sensor transmitting end (222) is fixedly connected inside the carrier (2), a through hole (221) adapted to the sensor transmitting end (222) is provided on the surface of the carrier (2), a square groove is provided on the surface of the carrier (2), two synchronization shafts (233) are rotationally connected to the inner wall of the square groove, a synchronization belt (234) is transmission-connected to the surfaces of the two synchronization shafts (233), a motor A (235) is fixedly connected to the inner wall of the square groove, and an output end of the motor A (235) is axially fixedly connected to one of the synchronization shafts (233); A detection frame (3) is fixedly connected to the surface of the base (1); a visual detection probe (31) for detecting the light effect of the backlight module is installed on the surface of the detection frame (3); a movable block (32) is slidably connected to the inner wall of the detection frame (3); the movable block (32) is connected to the detection frame (3) through a driving mechanism; a sensor receiving end (323) adapted to the sensor transmitting end (222) is also arranged on the surface of the movable block (32); and a connection contact strip (324) for connecting to the keyboard backlight module FPC is arranged at the bottom of the movable block (32); It also includes an adjustment component for lifting the keyboard backlight module to facilitate the FPC to return to the correct position.

2. The keyboard backlight module light effect testing device according to claim 1, characterized in that: The adjustment assembly comprises a pull plate (23) slidably connected to the inside of the carrier (2); one end of the pull plate (23) is slidably connected to a connecting rod (231); the upper end of the connecting rod (231) is hinged to the support plate (21); a slide rail (232) is fixedly connected to the bottom of the carrier (2); the lower end of the connecting rod (231) is slidably connected to the surface of the slide rail (232); a side of the carrier (2) close to the detection frame (3) is rotatably connected to a gear shaft (236); The pull plate (23) has a rack adapted to the gear shaft (236) on its surface, and the pull plate (23) is meshed with the gear shaft (236). The top of the movable block (32) is fixedly connected to an auxiliary block (33), and an auxiliary plate (332) is slidably connected inside the auxiliary block (33). The auxiliary plate (332) has a tooth groove adapted to the gear shaft (236) on its surface, and the auxiliary plate (332) is connected to the auxiliary block (33) via a cylinder (331).

3. The keyboard backlight module light effect testing device according to claim 2, characterized in that: Two protrusions (211) are fixedly connected to the lower surface of the support plate (21), and a groove matching the protrusions (211) is provided on the surface of the carrier plate (2).

4. The keyboard backlight module light effect testing device according to claim 3, characterized in that: The protrusion (211) is connected to the carrier plate (2) via a tension spring (212).

5. The keyboard backlight module light effect testing device according to claim 4, characterized in that: The invention also comprises a positioning assembly for aligning the FPC, wherein the positioning assembly comprises a guide block (24) fixedly connected to the surface of the pull plate (23), a guide groove being provided on the surface of the guide block (24), and a slider (241) being slidably connected via the guide groove, and both ends of the slider (241) being fixedly connected to a positioning plate (242), a through groove being provided on the surface of the carrier (2) and being matched with the positioning plate (242), and a fixed block (243) being matched with the slider (241) being fixedly connected inside the carrier (2), and one side of the fixed block (243) being inclined.

6. The keyboard backlight module light effect testing device according to claim 5, characterized in that: The positioning plate (242) is arc-shaped, and two positioning plates (242) are respectively arranged on both sides of the synchronous belt (234).

7. The keyboard backlight module light effect testing device according to claim 6, characterized in that: Limit blocks (22) for limiting the position of the FPC connector are fixedly connected to both sides of the surface of the carrier (2) close to the through hole (221), and a limit groove adapted to the limit block (22) is provided at the bottom of the movable block (32).

8. The keyboard backlight module light effect testing device according to claim 7, characterized in that: The synchronization component comprises a connecting frame (25) rotatably connected to the inner wall of the base (1), the connecting frame (25) is respectively fixedly connected to a plurality of carrier plates (2), and the base (1) is connected to the connecting frame (25) via a motor B (251).

9. The keyboard backlight module light effect testing device according to claim 8, characterized in that: The driving mechanism comprises a motor C (321) fixedly connected to the top of the detection frame (3); a screw rod (322) is fixedly connected to the output end of the motor C (321); the screw rod (322) is inserted into the interior of the detection frame (3), and the screw rod (322) is threadedly connected to the movable block (32).

10. The keyboard backlight module light effect testing device according to claim 9, characterized in that: A detection jig (325) adapted to the support plate (21) is fixedly connected to the surface of the movable block (32).

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