An electrical testing mechanism for the production of light guide film assemblies for luminous keyboards

By designing components such as parallel drive belts and infrared scanners, the problems of cumbersome and damaged FPC board testing in existing technologies have been solved, achieving efficient and accurate power-on testing.

CN120847516BActive Publication Date: 2026-04-03WUXI BAOSHILONG PLASTIC IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing electrical testing mechanisms for producing backlit keyboard light guide film assemblies suffer from cumbersome sensitivity adjustments and the risk of damaging FPC boards when dealing with different models of FPC boards.

Method used

It employs components such as parallel drive belts, propulsion motors, docking chucks, and infrared scanners to achieve rapid adaptation, clamping, and temperature monitoring, thereby avoiding damage and improving efficiency.

Benefits of technology

It enables automatic adjustment of clamping according to the length of the FPC board, avoiding damage, improving detection efficiency, and ensuring the accuracy of temperature monitoring and continuous operation of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the technical field of testing devices, specifically an electrical testing mechanism for the production of light guide film assemblies for luminous keyboards. It includes an electrical component and a transport component. The transport component includes two parallel drive belts, each with evenly spaced through-holes in its inner cavity; and a transmission mechanism whose outer surface of the shaft is rotatably connected to one side of the inner wall of the two parallel drive belts. This device can quickly adjust the actual distance between the two moving sliding shells according to the actual length of the FPC board, adapting to the actual length of the FPC board and clamping both ends of the FPC board. Because the moving sliding shells are fixed in position after being pulled open, it can not only clamp FPC boards of different sizes but also avoid the problem of the belt breaking when the FPC board is tightened. It can cyclically test placed FPC boards, thereby improving actual testing efficiency.
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Description

Technical Field

[0001] This invention belongs to the field of testing device technology, specifically an electrical testing mechanism for the production of light guide film assemblies for luminous keyboards. Background Technology

[0002] Backlit keyboards originated from ordinary keyboards. Driven by the domestic gaming market, and in order to meet the needs of more sophisticated gamers, keyboard developers began to research multifunctional keyboards. Among these were backlit keyboards, which feature illuminated keys or panels, allowing the keys to be clearly seen even in the dark without lights.

[0003] An existing power-on testing mechanism for the production of light guide film assemblies for luminous keyboards (publication number CN114779046A) utilizes a combination of a limiting mechanism, a clamping mechanism, and a testing mechanism to perform power-on testing, achieving automated production testing, improving production efficiency, and reducing production costs. However, different models of FPC boards have significantly different thicknesses at their ends. When using the aforementioned device to uniformly clamp the FPC boards, sensitivity adjustments are required based on the specific FPC board, placing high demands on the device's performance. Furthermore, performing the aforementioned testing on each FPC board individually is not only cumbersome and severely impacts work efficiency, but also prone to causing the strap to break during the tightening of the FPC board. Therefore, optimization and improvement are necessary. Summary of the Invention

[0004] To address the problem that existing technologies for testing FPC boards are cumbersome and severely impact work efficiency, the technical solution adopted in this invention is: an electrical conduction testing mechanism for the production of light guide film assemblies for luminous keyboards, comprising:

[0005] Powered components and transfer components;

[0006] The transfer component includes:

[0007] The parallel drive belts consist of two belts, and the inner cavities of the parallel drive belts are evenly provided with through-holes.

[0008] The transmission mechanism has an outer surface of the transmission shaft that is rotatably connected to one side of the inner wall of the parallel transmission belt. There are two parallel transmission belts, which are respectively fitted onto the outer surfaces of the transmission shaft on the front and rear sides, and there is a certain gap between the parallel transmission belts on the front and rear sides.

[0009] The height adjustment base has sliding push rods evenly arranged in its inner cavity, and a central connecting plate is inserted into the top of the sliding push rod. The top of the outer surface of the central connecting plate is fixedly connected to the outer surface of the transmission machine. The height adjustment base can adjust the height of the upper transfer component by pushing the central connecting plate.

[0010] Fixing components are evenly distributed on the outer surface of the parallel drive belts to fix the FPC board for testing;

[0011] The fixing component includes:

[0012] The inner connecting strip is made of rubber, and movable sliding shells are fitted on both sides of the outer surface of the inner connecting strip. The inner connecting strip is an elastic rubber strip that can be extended to a certain length and is used to connect the movable sliding shells on both sides.

[0013] The propulsion motor has a sliding push rod at the center of its inner wall. The outer surface of the propulsion motor is engaged with the inner wall of the movable sliding shell. The propulsion motor can be made to perform independent push rod or retract rod movements by means of external remote control.

[0014] The docking clamp has conductive pads evenly arranged in its inner cavity and a transfer guide plate on its top. The push motor can push the docking clamp located inside the movable sliding shell outward through the push rod at the shaft center, thereby clamping the conductive end of the FPC board through the groove in the middle of the docking clamp and connecting the circuit inside the FPC board through the conductive pads.

[0015] An internal temperature sensing component, located in the middle of the fixed component, is used to monitor the temperature of the FPC board.

[0016] Furthermore, the fixing component also includes:

[0017] The clamping shell has its inner wall slidably connected to the outer surface of the movable sliding shell, and the left and right sides of the inner cavity of the clamping shell are symmetrically provided with sliding grooves. The movable sliding shells on both sides always slide along the inner wall of the clamping shell in the middle and will not detach from the clamping shell.

[0018] A limiting rod, the outer surface of which is inserted into the inner cavity of the parallel transmission belt through a through-hole, and the front end of the limiting rod is inserted into the middle of the inner cavity of the clamping shell;

[0019] A lateral traction device is provided, wherein the outer surface of the lateral traction device is inserted into the outer surface of the parallel transmission belt, and the inner cavity of the lateral traction device is slidably connected to a traction connecting plate via rollers. The end of the traction connecting plate away from the lateral traction device is inserted into the outer surface of the movable sliding shell, and the outer surface of the traction connecting plate is slidably connected to the inner cavity of the clamping shell via a sliding groove. The lateral traction device drives the traction connecting plate to slide through the internal rollers, thereby realizing the sliding movement of the corresponding movable sliding shell.

[0020] Furthermore, the internal temperature sensing component includes:

[0021] The middle shell has magnetic blocks symmetrically arranged on the upper and lower sides of its outer surface. The left and right sides of the outer surface of the middle shell are slidably connected to the inner wall of the movable sliding shell. Since the housings of the propulsion motors on both sides are made of iron metal and the middle shell is always restricted to the middle of the clamping shell, the movable sliding shells on both sides will be attracted by the magnetic blocks when sliding. After the work stops, the magnetic force will pull the movable sliding shells on both sides back to the initial position.

[0022] The data box has infrared scanners evenly arranged on its front side. The outer surface of the data box is slidably connected to the inner wall of the middle shell. The outer surface of the infrared scanner extends to the outside of the middle shell through a groove. The data box performs infrared temperature measurement on the strip area of ​​the FPC board through the infrared scanner.

[0023] Furthermore, the internal temperature sensing component also includes:

[0024] A rear push box, the outer surface of which is snapped into the back of the outer surface of the data box;

[0025] A spring push rod is provided, with one end slidably connected to the inner cavity of the rear push box and the other end inserted into the back of the outer surface of the data box. The spring on the outer surface of the spring push rod is pressed against the inner wall of the middle shell. The rear push box can move the data box closer to the FPC board held in the middle by pushing the spring push rod, thereby bringing the infrared scanner closer to the strip area of ​​the FPC board and making it more sensitive to temperature.

[0026] Furthermore, the energized component includes:

[0027] A suspension plate, the top of which is fixedly connected to a sliding box, the inner cavity of which is evenly provided with vertical sliding grooves;

[0028] The bridging components are symmetrically arranged on the upper and lower sides of the sliding box cavity via vertical sliding grooves, and slide vertically under the action of the traction rope inside the sliding box.

[0029] The power supply component is located in the middle of the bridging component and directly supplies power to the adapter plate. After the sliding box is powered on, it can drive the upper and lower bridging components to slide through the internal sliding assembly and conduct current to the power supply component.

[0030] Furthermore, the power supply component includes:

[0031] A center connecting plate, wherein a conductive terminal is inserted into the center of the inner cavity of the center connecting plate;

[0032] The power supply connector has one end inserted into the inner cavity of the conductive end, and the other end is fixedly connected to an internal wire that extends into the interior of the sliding box. The conductive end can connect with the adapter plate of the docking clamp to supply power to the clamped FPC board.

[0033] Furthermore, the bridging component includes:

[0034] The sliding connecting plate has both ends slidably connected to the inner cavity of the sliding gap box through vertical sliding grooves, and the outer surface of the middle connecting plate is inserted into the axis of the inner wall of the sliding connecting plate.

[0035] A rotary motor, wherein the inner cavity of the rotary motor is provided with rollers via a motor, and the outer surface of the rotary motor is engaged with the inner cavity of the sliding connecting plate;

[0036] The rotating tube shell is a hollow shell with symmetrical sliding grooves at the bottom of the inner cavity. The top of the outer surface of the rotating tube shell is rotatably connected to the axis of the inner wall of the rotating wheel motor through rollers. The middle of the rotating wheel motor is a hollow opening, and the rotating tube shell is driven to rotate through the internal rollers.

[0037] A limiting top plate, the inner cavity of which is engaged with the outer surface of the rotating tube shell through a socket.

[0038] Furthermore, the bridging component also includes:

[0039] A pressure-controlled pump, wherein the outer surface of the pressure-controlled pump is sleeved with the outer surface of the rotary motor housing;

[0040] A compression top cylinder is provided, the bottom end of which is sleeved on the outer surface of the pressure control pump. An internal tie rod is fixedly connected to the axial center of the inner wall of the compression top cylinder. The outer surface of the internal tie rod is slidably connected to the inner wall of the rotating tube shell. The pressure control pump extends or contracts the compression top cylinder by pressurizing the inside of the compression top cylinder, thereby causing the compression top cylinder to drive the internal tie rod to slide vertically relative to the rotating tube shell.

[0041] The pressure base plate has its outer surface fixedly connected to the bottom of the outer surface of the built-in tie rod, and its inner wall is slidably connected to the outer surface of the rotating tube shell through a sliding groove.

[0042] The beneficial effects of this invention are as follows:

[0043] 1. This device can quickly adjust the actual distance between the two moving sliding shells according to the actual length of the FPC board, adapt to the FPC board, and clamp both ends of the FPC board. Since the position of the moving sliding shell is fixed after being pulled open, it can not only clamp FPC boards of different sizes, but also avoid the problem of the belt breaking easily when the FPC board is tightened. It can cyclically test the placed FPC boards, thereby improving the actual testing efficiency.

[0044] 2. Since each set of fixed components is installed on the parallel transmission belt via limit pins, the fixed components are relatively independent. After long-term power-on testing, the internal circuits of the fixed components and the mating clamps that contact the conductive ends of the FPC board will age, resulting in poor contact or short circuits. In this case, the fixed components in the corresponding positions can be replaced by removing the limit pins, achieving a quick maintenance effect without interfering with the normal operation of other fixed components. This ensures that the device can continuously perform testing for a long time, which is more in line with actual production needs.

[0045] 3. This device clamps the FPC board inside using fixing components on both sides. Therefore, when the FPC board is powered on for testing, it can prevent the temperature of the FPC board from rising due to external light. This simulates the state of the FPC board heating up inside the container after being powered on. Because the temperature change of the FPC board is small, the infrared scanner used for temperature measurement is very sensitive. In the non-working state, the infrared scanner will automatically retract into the middle shell to avoid contact with the outside, thus providing a protective effect. Under temperature measurement conditions, due to the protective effect of the fixing components, the infrared scanner will move to the side closer to the FPC board, thereby obtaining a more accurate temperature measurement value and ensuring the reliability of the testing work.

[0046] 4. When the conductive end is about to be inserted into the interface of the adapter plate, the limiting top plate and the pressure bottom plate clamp the sides of the conductive pads on both sides, thereby reinforcing the conductive pads on both sides. In this way, when the bottom end of the conductive end is pressed against the conductive pads, the conductive pads will not separate due to the downward pressure, which would cause poor contact between the bottom end of the conductive end and the conductive pads. Attached Figure Description

[0047] Figure 1 This is the front view of the present invention;

[0048] Figure 2 This is a cross-sectional view of the present invention;

[0049] Figure 3 This is a schematic diagram of the structure of the fixing component of the present invention;

[0050] Figure 4 This is a front view of the fixing component of the present invention;

[0051] Figure 5 This is a front view of the fixed component of the present invention in its working state;

[0052] Figure 6 This is a cross-sectional view of the shell in this invention;

[0053] Figure 7 This is a cross-sectional view of the energized component of the present invention;

[0054] Figure 8 This is a schematic diagram of the power supply component of the present invention;

[0055] Figure 9 This is a cross-sectional view of the sliding connecting plate of the present invention.

[0056] In the diagram: 1. Powered component; 2. Transfer component; 3. Fixed component; 21. Parallel transmission belt; 22. Transmission machine; 23. Central connecting plate; 24. Height adjustment base; 25. Limiting rod; 26. Clamping shell; 27. Side traction device; 28. Traction connecting plate; 31. Inner connecting belt; 32. Moving sliding shell; 33. Propulsion motor; 34. Docking clamp; 35. Guide gasket; 36. Adapter guide plate; 4. Inner temperature sensing component; 41. Center shell; 42. Adsorption magnetic block; 43. Rear push box; 44. Spring push rod; 45. Data box; 46. Infrared scanner; 11. Suspension plate; 12. Slip box; 13. Bridging component; 14. Power supply component; 141. Mid-position connecting plate; 142. Power supply connecting pipe; 143. Conductive terminal; 131. Sliding connecting plate; 132. Rotary wheel motor; 133. Rotating tube shell; 134. Built-in tie rod; 135. Pressure control pump; 136. Compression top cylinder; 137. Limiting top plate; 138. Pressurizing bottom plate. Detailed Implementation

[0057] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0058] Example 1, please refer to Figures 1-5 This invention provides a technical solution: an electrical testing mechanism for the production of a light guide film assembly for a light-emitting keyboard, comprising:

[0059] Powered component 1 and transfer component 2;

[0060] Transfer component 2 includes:

[0061] There are two parallel drive belts 21, and the inner cavity of the parallel drive belts 21 is evenly provided with through-holes.

[0062] The transmission mechanism 22 has an outer surface of its rotating shaft that is rotatably connected to one side of the inner wall of the parallel transmission belt 21. There are two parallel transmission belts 21, which are respectively fitted onto the outer surfaces of the rotating shafts of the transmission mechanism 22 on the front and rear sides, and there is a certain gap between the parallel transmission belts 21 on the front and rear sides.

[0063] The height adjustment base 24 has sliding push rods evenly arranged in its inner cavity, and a central connecting plate 23 is inserted into the top of the sliding push rod. The top of the outer surface of the central connecting plate 23 is fixedly connected to the outer surface of the transmission machine 22. The height adjustment base 24 can adjust the height of the upper transfer component 2 by pushing the central connecting plate 23.

[0064] The fixing component 3 is evenly arranged on the outer surface of the parallel transmission belt 21 and is used to fix the FPC board for testing.

[0065] Fixed component 3 includes:

[0066] The inner connecting strip 31 is made of rubber, and movable sliding shells 32 are sleeved on both sides of the outer surface of the inner connecting strip 31. The inner connecting strip 31 is an elastic rubber strip that can be extended to a certain length and is used to connect the movable sliding shells 32 on both sides.

[0067] The propulsion motor 33 has a sliding push rod at the shaft center on the inner wall of the propulsion motor 33, and the outer surface of the propulsion motor 33 is engaged with the inner wall of the movable sliding housing 32.

[0068] The docking clamp 34 has evenly arranged conductive pads 35 in its inner cavity and a transfer guide plate 36 on its top. The push motor 33 can push the docking clamp 34 located inside the movable sliding shell 32 outward through the push rod at the shaft center, thereby clamping the conductive end of the FPC board through the groove in the middle of the docking clamp 34 and connecting the circuit inside the FPC board through the conductive pads 35.

[0069] The internal temperature sensing component 4 is located in the middle of the fixed component 3 and is used to monitor the temperature of the FPC board.

[0070] The fixing component 3 also includes:

[0071] The clamping shell 26 has its inner wall slidably connected to the outer surface of the movable sliding shell 32. The left and right sides of the inner cavity of the clamping shell 26 are symmetrically provided with sliding grooves. The movable sliding shells 32 on both sides always slide along the inner wall of the clamping shell 26 in the middle and will not detach from the clamping shell 26.

[0072] The limiting rod 25 has its outer surface inserted into the inner cavity of the parallel transmission belt 21 through a through-hole, and its front end is inserted into the middle of the inner cavity of the clamping shell 26.

[0073] The side-position traction device 27 has its outer surface inserted into the outer surface of the parallel transmission belt 21. The inner cavity of the side-position traction device 27 is slidably connected to the traction plate 28 through rollers. The end of the traction plate 28 away from the side-position traction device 27 is inserted into the outer surface of the movable sliding shell 32. The outer surface of the traction plate 28 is slidably connected to the inner cavity of the clamping shell 26 through a sliding groove. The side-position traction device 27 drives the traction plate 28 to slide through the internal rollers, thereby realizing the sliding movement of the movable sliding shell 32 at the corresponding position.

[0074] When using this device to test the FPC board, the FPC board is placed on the upper left fixing component 3 for clamping. At this time, the docking clamps 34 on both sides are pushed outward by the push motor 33. Then, the combined docking clamps 34 clamp the conductive ends 143 at both ends of the FPC board to achieve fixation. Then, the transmission motors 22 on both sides rotate clockwise at the same time. Through the rolling friction of the rotating shaft, the parallel transmission belts 21 on both sides rotate clockwise synchronously. At this time, the placed FPC board is transferred to the right. When it reaches the position of the middle energized component 1, the transmission motor 22 temporarily stops working.

[0075] The energizing component 1 energizes the transfer component 2 in the middle, i.e., energizes the adapter plate 36. At this time, current is input to the end of the FPC board through the conductive pad 35 to power the FPC board and perform the power-on test. When the FPC board can be energized normally, the energizing component 1 is disconnected from the transfer component 2 in the middle. With the rotation of the parallel transmission belt 21, the FPC board is transferred to the position facing the frame below. Then, the push motors 33 on both sides retract the corresponding docking clamps 34 into the interior of the moving slide shell 32. At this time, the clamped FPC board falls to the left side of the frame below, completing the collection work. If the FPC board shows a series of defects such as poor conductivity or excessive temperature during the test, the FPC board is unqualified and should be placed in the right side of the frame for collection.

[0076] To ensure that the mating clamps 34 on both sides can precisely hold the ends of the FPC board, the movable sliding shells 32 on both sides can slide relative to the clamping shell 26 in the middle. This allows the spacing between the mating clamps 34 on both sides to be adjusted according to the actual length of the FPC board, so that the mating clamps 34 keep the FPC board straight when holding it, thus achieving the effect of the fixing component 3 adapting to the actual length of the FPC board.

[0077] The side traction devices 27 on both sides drive the movable sliding shell 32 to move relative to the clamping shell 26 by sliding the traction connecting plate 28, thereby achieving the effect of adjusting the distance between the movable sliding shells 32 on both sides, and thus adapting to the clamped FPC board.

[0078] Example 2, please refer to Figures 1-9 The present invention provides a technical solution: based on embodiment 1, the internal temperature sensing component 4 includes:

[0079] The middle shell 41 has magnetic blocks 42 symmetrically arranged on the upper and lower sides of its outer surface. The left and right sides of the outer surface of the middle shell 41 are slidably connected to the inner wall of the movable sliding shell 32. Since the outer shells of the propulsion motors 33 on both sides are made of iron metal and the middle shell 41 is always restricted to the middle of the clamping shell 26, the movable sliding shells 32 on both sides will be attracted by the magnetic blocks 42 when sliding. After the work stops, the magnetic force will pull the movable sliding shells 32 on both sides back to the initial position.

[0080] The data box 45 has infrared scanners 46 evenly arranged on its front side. The outer surface of the data box 45 is slidably connected to the inner wall of the middle shell 41. The outer surface of the infrared scanner 46 extends to the outside of the middle shell 41 through a groove. The data box 45 performs infrared temperature measurement on the strip area of ​​the FPC board through the infrared scanner 46.

[0081] The internal temperature sensing component 4 also includes:

[0082] The rear push box 43 has its outer surface snapped into the back of the outer surface of the data box 45.

[0083] The spring push rod 44 has one end slidably connected to the inner cavity of the rear push box 43, and the other end inserted into the back of the outer surface of the data box 45. The spring on the outer surface of the spring push rod 44 is pressed against the inner wall of the middle shell 41. The rear push box 43 can push the data box 45 closer to the FPC board held in the middle by pushing the spring push rod 44, so that the infrared scanner 46 is closer to the strip part of the FPC board and has higher temperature sensitivity.

[0084] The energized component 1 includes:

[0085] Suspension plate 11, with a sliding box 12 fixedly connected to the top of the suspension plate 11, and vertical sliding grooves evenly opened in the inner cavity of the sliding box 12.

[0086] The bridging component 13 is symmetrically arranged on the upper and lower sides of the inner cavity of the sliding box 12 via vertical sliding grooves, and slides vertically under the action of the traction rope inside the sliding box 12.

[0087] The power supply component 14 is located in the middle of the bridging component 13 and directly supplies power to the adapter plate 36. After the sliding box 12 is powered on, it can drive the upper and lower bridging components 13 to slide through the internal sliding assembly and introduce current into the power supply component 14.

[0088] Power supply component 14 includes:

[0089] A middle connecting plate 141 is provided, and a conductive end 143 is inserted into the middle of the inner cavity of the middle connecting plate 141.

[0090] The power supply connector 142 has one end inserted into the inner cavity of the conductive end 143, and the other end of the power supply connector 142 is fixedly connected to an internal wire that extends into the interior of the sliding box 12. The conductive end 143 can be connected to the adapter plate 36 of the docking clamp 34 to supply power to the clamped FPC board.

[0091] Bridging component 13 includes:

[0092] The sliding connecting plate 131 has two ends that are slidably connected to the inner cavity of the sliding gap box 12 through vertical sliding grooves, and the outer surface of the middle connecting plate 141 is inserted into the axis of the inner wall of the sliding connecting plate 131.

[0093] Rotary motor 132, the inner cavity of rotary motor 132 is equipped with rollers through the motor, and the outer surface of rotary motor 132 is engaged with the inner cavity of sliding connecting plate 131;

[0094] Rotary tube shell 133 is a hollow shell, and the bottom of the inner cavity of the rotating tube shell 133 is symmetrically provided with sliding grooves. The top of the outer surface of the rotating tube shell 133 is rotatably connected to the shaft of the inner wall of the rotating wheel motor 132 through rollers. The middle part of the rotating wheel motor 132 is a hollow through-hole, and the rotating tube shell 133 is driven to rotate through the internal rollers.

[0095] The limiting top plate 137 has its inner cavity engaged with the outer surface of the rotating tube shell 133 through a socket.

[0096] The bridging component 13 also includes:

[0097] The outer surface of the pressure-controlled pump 135 is sleeved with the outer surface of the housing of the rotary motor 132.

[0098] The compression top cylinder 136 is sleeved at the bottom end with the outer surface of the pressure control pump 135. An internal tie rod 134 is fixedly connected at the axis of the inner wall of the compression top cylinder 136. The outer surface of the internal tie rod 134 is slidably connected with the inner wall of the rotating tube shell 133. The pressure control pump 135 extends or contracts the compression top cylinder 136 by pressurizing the inside of the compression top cylinder 136, thereby causing the compression top cylinder 136 to drive the internal tie rod 134 to slide vertically relative to the rotating tube shell 133.

[0099] The outer surface of the pressure base plate 138 is fixedly connected to the bottom of the outer surface of the built-in tie rod 134, and the inner wall of the pressure base plate 138 is slidably connected to the outer surface of the rotating tube shell 133 through a sliding groove.

[0100] During the power-on test of the FPC board, the current flowing into the fixed component 3 also powers the internal temperature sensing component 4. At this time, the rear push box 43 moves the data box 45 closer to the FPC board by pushing the spring push rod 44. The infrared scanner 46 extends from the slot of the middle shell 41 and gets closer to the FPC board to sensitively monitor the temperature change of the FPC board. When the power-on is finished, the rear push box 43 is de-energized. At this time, under the rebound force of the spring push rod 44, the data box 45 retracts into the internal area of ​​the middle shell 41, causing the infrared scanner 46 to also retract into the middle shell 41. The middle shell 41 protects the sensitive infrared scanner 46.

[0101] The energized component 1 can adjust the height of the sliding box 12 via the suspension plate 11, allowing the parallel transmission belt 21 to pass through the bridging components 13 on both sides. The sliding box 12 can further move the power supply component 14 by sliding the sliding connecting plate 131. When the fixed component 3 is located directly below the conductive end 143, the middle connecting plates 141 on both sides are moved closer to the transition guide plate 36. Then, the conductive end 143 is connected to the transition guide plate 36 to achieve power supply. After the test is completed, the power supply components 14 on both sides are pulled apart. At this time, the parallel transmission belt 21 can continue to rotate without being blocked by the bridging component 13.

[0102] As the conductive end 143 is about to be inserted into the interface of the adapter guide plate 36, the rotating wheel motors 132 on both sides rotate the limiting top plate 137 and the pressure base plate 138 towards the conductive pad 35 by twisting the rotating tube shell 133. Figure 9As shown, the pressure pump 135 then pressurizes the inside of the compression top cylinder 136, causing the compression top cylinder 136 to bulge and elongate, lifting the built-in pull rod 134 upward. At this time, the pressure base plate 138 moves closer to the limit top plate 137. Then, the limit top plate 137 and the pressure base plate 138 clamp the sides of the connecting pads 35 on the front and rear sides. In this way, when the bottom end of the conductive end 143 is pressed against the connecting pads 35, the connecting pads 35 will not separate due to the downward pressure, thus preventing poor contact.

[0103] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A power-on testing mechanism for the production of a light guide film assembly for a backlit keyboard, comprising: Powered component (1) and transfer component (2); Its characteristic is that the transfer component (2) includes: Parallel drive belts (21), the number of parallel drive belts (21) is two, and the inner cavity of the parallel drive belts (21) is evenly provided with through-holes; The transmission (22) has an outer surface of its rotating shaft that is rotatably connected to one side of the inner wall of the parallel transmission belt (21); The height adjustment base (24) has sliding push rods evenly arranged in its inner cavity, and a central connecting plate (23) is inserted into the top of the sliding push rod. The top of the outer surface of the central connecting plate (23) is fixedly connected to the outer surface of the transmission machine (22). The fixing component (3) is evenly arranged on the outer surface of the parallel transmission belt (21) for fixing the FPC board for testing; The fixing component (3) includes: The inner connecting strip (31) is made of rubber, and movable sliding shells (32) are sleeved on both sides of the outer surface of the inner connecting strip (31). A propulsion motor (33) is provided with a sliding push rod at the shaft center of the inner wall of the propulsion motor (33), and the outer surface of the propulsion motor (33) is engaged with the inner wall of the movable sliding shell (32); A docking chuck (34) is provided with guide pads (35) evenly arranged in the inner cavity of the docking chuck (34), and a transfer guide plate (36) is provided on the top of the docking chuck (34). An internal temperature sensing component (4) is located in the middle of the fixed component (3) and is used to monitor the temperature of the FPC board; The fixing component (3) also includes: The clamping shell (26) has its inner wall slidably connected to the outer surface of the movable sliding shell (32), and sliding grooves are symmetrically opened on the left and right sides of the inner cavity of the clamping shell (26). The limiting rod (25) has its outer surface inserted into the inner cavity of the parallel transmission belt (21) through a through-hole, and its front end is inserted into the middle of the inner cavity of the clamping shell (26). A side-position traction device (27) is inserted into the outer surface of a parallel transmission belt (21). The inner cavity of the side-position traction device (27) is slidably connected to a traction connecting plate (28) via rollers. The end of the traction connecting plate (28) away from the side-position traction device (27) is inserted into the outer surface of a movable sliding shell (32). The outer surface of the traction connecting plate (28) is slidably connected to the inner cavity of a clamping shell (26) via a sliding groove.

2. The power-on testing mechanism for the production of the light guide film assembly for a light-emitting keyboard according to claim 1, characterized in that: The internal temperature sensing component (4) includes: The middle shell (41) has magnetic blocks (42) symmetrically arranged on the upper and lower sides of the outer surface of the middle shell (41), and the left and right sides of the outer surface of the middle shell (41) are slidably connected to the inner wall of the movable sliding shell (32). The data box (45) has infrared scanners (46) evenly arranged on its front side. The outer surface of the data box (45) is slidably connected to the inner wall of the middle shell (41). The outer surface of the infrared scanner (46) extends to the outside of the middle shell (41) through a groove.

3. The power-on testing mechanism for the production of the light guide film assembly for a light-emitting keyboard according to claim 2, characterized in that: The internal temperature sensing component (4) also includes: The rear push box (43) is snapped to the back of the outer surface of the data box (45); A spring push rod (44) is slidably connected at one end to the inner cavity of the rear push box (43), and the other end of the spring push rod (44) is inserted into the back of the outer surface of the data box (45), and the spring on the outer surface of the spring push rod (44) is pressed against the inner wall of the middle shell (41).

4. The power-on testing mechanism for the production of the light guide film assembly for a light-emitting keyboard according to claim 1, characterized in that: The energized component (1) includes: Suspension plate (11), the top of which is fixedly connected to a sliding box (12), the inner cavity of which is uniformly provided with vertical sliding grooves; The bridging component (13) is symmetrically arranged on the upper and lower sides of the inner cavity of the sliding box (12) through vertical sliding grooves, and slides vertically under the action of the traction rope inside the sliding box (12); The power supply component (14) is located in the middle of the bridging component (13) and directly supplies power to the adapter plate (36).

5. The power-on testing mechanism for the production of the light guide film assembly for a light-emitting keyboard according to claim 4, characterized in that: The power supply component (14) includes: A middle connecting plate (141) is provided with a conductive end (143) inserted into the middle of its inner cavity. A power supply connector (142) is provided. One end of the power supply connector (142) is inserted into the inner cavity of the conductive end (143). The other end of the power supply connector (142) is fixedly connected to an internal wire, which extends into the interior of the sliding box (12).

6. The power-on testing mechanism for the production of the light guide film assembly for a light-emitting keyboard according to claim 5, characterized in that: The bridging component (13) includes: The sliding connecting plate (131) has two ends that are slidably connected to the inner cavity of the sliding gap box (12) through vertical sliding grooves, and the outer surface of the middle connecting plate (141) is inserted into the axis of the inner wall of the sliding connecting plate (131). A rotary motor (132) has rollers installed in its inner cavity via a motor, and the outer surface of the rotary motor (132) is engaged with the inner cavity of the sliding connecting plate (131). Rotate the shell (133), which is a hollow shell, and the bottom of the inner cavity of the rotating shell (133) is symmetrically provided with sliding grooves. The top of the outer surface of the rotating shell (133) is rotatably connected to the axis of the inner wall of the rotating wheel motor (132) through a roller. The limiting top plate (137) has its inner cavity engaged with the outer surface of the rotating tube shell (133) through a socket.

7. The power-on testing mechanism for the production of the light guide film assembly for a light-emitting keyboard according to claim 6, characterized in that: The bridging component (13) also includes: A pressure-controlled pump (135) is fitted with the outer surface of the housing of a rotary motor (132); A compression top cylinder (136) is fitted at the bottom end with the outer surface of the pressure control pump (135). An internal tie rod (134) is fixedly connected at the axial center of the inner wall of the compression top cylinder (136). The outer surface of the internal tie rod (134) is slidably connected to the inner wall of the rotating tube shell (133). The outer surface of the pressure base plate (138) is fixedly connected to the bottom of the outer surface of the built-in tie rod (134), and the inner wall of the pressure base plate (138) is slidably connected to the outer surface of the rotating tube shell (133) through a sliding groove.

Citation Information

Patent Citations

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