Temperature characteristic tester of PDLC (polymer dispersed liquid crystal) device

Abstract

The utility model discloses a temperature characteristic tester for a PDLC (polymer dispersed liquid crystal) device, which comprises an instrument body and a test inner cavity, the test inner cavity is arranged on one side surface of the instrument body, a sealing door is arranged on the surface of the instrument body at a position corresponding to the test inner cavity, a track assembly is arranged in the test inner cavity, and a test board is connected onto the track assembly in a sliding manner. According to the utility model, the track assembly is arranged and sends the test board out of the test inner cavity, so that the PDLC device can be directly placed on the test convex plate at the top of the test board from the outside of the instrument body, and a hand does not need to stretch into the test inner cavity to place the PDLC device; the self-locking assembly is used for locking and positioning the test bench after the test bench is pushed back to the test inner cavity, the unlocking assembly is pressed to unlock the self-locking assembly after the test inner cavity is opened, at the moment, the test bench can be slowly pushed out of the test inner cavity through the damping ring under the thrust of the spring piece, and the effect of automatically pushing the test bench out of the test inner cavity is achieved.

Description

Technical Field

[0001] This utility model relates to the field of PDLC testing technology, and in particular to a temperature characteristic tester for PDLC devices. Background Technology

[0002] PDLC devices encompass a wide range of special devices manufactured primarily through polymer-dispersed liquid crystals. They possess interesting optical and electrical properties and are commonly used in fields such as smart windows, projection screens, and displays. To ensure the performance stability and reliability of PDLC devices at different temperatures, specialized temperature characteristic testers are typically used to simulate temperature environments from low to high temperatures to perform optical and electrical tests on the PDLC devices and understand the changes in optical and electrical parameters under different stable conditions.

[0003] During testing, the PDLC device needs to be placed into the test chamber of the temperature characteristic tester. Generally, it requires reaching into the test chamber to place it. Due to the narrowness of the test chamber, this operation is not convenient, and there is residual heat inside due to temperature changes, which can have a certain impact on the hand.

[0004] Therefore, how to provide a temperature characteristic tester for PDLC devices is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a temperature characteristic tester for PDLC devices. This invention solves the problems in the prior art where PDLC devices require the user to insert their hand into the test cavity for placement, which makes the placement operation inconvenient, and where residual heat in the test cavity due to temperature changes affects the user's hand position.

[0006] A temperature characteristic tester for a PDLC device according to an embodiment of the present invention includes an instrument body and a test cavity. The test cavity is opened on one side of the instrument body. A sealing door is provided on the surface of the instrument body corresponding to the position of the test cavity. A track assembly is provided inside the test cavity, and a test platform is slidably connected to the track assembly. The track assembly includes a track rod, which is fixed at the bottom of the inner wall of the test cavity. A track groove is opened at the bottom of the test platform, and the track groove is movably sleeved on the surface of the track rod.

[0007] The track assembly also includes a guide rod, a spring, a positioning seat, a self-locking component, and an unlocking component. The guide rod is fixed to the inner wall of the test cavity, and the other end of the guide rod is fixed to one side of the positioning seat. The positioning seat is fixed to the bottom of the inner wall of the test cavity. The self-locking component is located at the top of the positioning seat, and the unlocking component is located on the surface of the test platform. The self-locking component, the unlocking component, and the guide rod are all in the same plane. The spring is movably sleeved on the surface of the guide rod. A damping ring is provided on the inner wall of the test platform that is in contact with the guide rod. The test platform is movably sleeved on the surface of the guide rod through the damping ring. One end of the spring moves on the surface of the test platform, and the other end of the spring is movably connected to the inner wall of the test cavity.

[0008] The self-locking assembly includes a placement groove, an elastic element, and a locking block. The placement groove is located on the top of the positioning seat. The elastic element and the locking block are both movable inside the placement groove. The top end of the elastic element is movably connected to the bottom end of the locking block. The bottom end of the elastic element is movable at the bottom of the inner wall of the placement groove. The end of the locking block away from the elastic element extends to the outside of the placement groove and the positioning seat. The top of the locking block is provided with rounded corners.

[0009] The unlocking component includes a lock slot, a limiting box, and a pressing block. The lock slot is formed on the surface of the test bench, connecting the top and bottom of the test bench. The limiting box is fixed at the top of the test bench corresponding to the position of the lock slot. The pressing block moves inside the limiting box and the lock slot. When the bottom of the pressing block is stuck inside the lock slot, the top of the pressing block just extends to the outside of the limiting box.

[0010] The test platform is provided with a test protrusion on the top, and a limit block is provided around the test protrusion on the top of the test platform. Two sets of movable rotating components are provided on the top of the test platform near both sides, and pressing and fixing components are provided on the two sets of movable rotating components.

[0011] The movable rotating assembly includes side teeth, transmission gears, a fixed rod, a first transmission bevel gear, a second transmission bevel gear, and a rotating shaft. The rotating shaft is rotatably connected to the top of the test platform. The second transmission bevel gear is fixed to one end face of the rotating shaft near the inner cavity of the test platform. The first transmission bevel gear and the second transmission bevel gear mesh with each other. The fixed rod is fixedly connected to the top of the test platform near the first transmission bevel gear. The first transmission bevel gear is rotatably sleeved on the surface of the fixed rod. The transmission gear is fixed to the top of the first transmission bevel gear and rotatably sleeved on the surface of the fixed rod. The side teeth are fixed to both sides of the inner wall of the test platform and mesh with the transmission gears.

[0012] The pressing and fixing assembly includes a pressing frame, a stabilizing rod, a connecting rod, an elastic element, and a pressing strip. The bottom end of the pressing frame is fixed to the surface of the rotating shaft. The stabilizing rod and the connecting rod are both fixed to the surface of the pressing strip. The ends of the connecting rod and the stabilizing rod away from the pressing strip pass through the pressing frame and extend to the other side of the pressing frame. The elastic element is movably sleeved on the surface of the connecting rod. One end of the elastic element is movably connected to the surface of the pressing strip, and the other end of the elastic element is movably connected to the surface of the pressing frame.

[0013] The beneficial effects of this utility model are:

[0014] By setting up a track assembly, the test stage is delivered out of the test cavity. This allows PDLC devices to be placed directly on the test protrusion on top of the test stage from outside the instrument body, eliminating the need for hands to reach into the test cavity to place the PDLC devices. This solves the problems in the prior art where placing PDLC devices requires hands to reach into the test cavity, resulting in inconvenient placement operations, and the residual heat in the test cavity due to temperature changes affecting the hand position.

[0015] By setting a self-locking component and an unlocking component, the self-locking component is used to lock and position the test platform after it is pushed back into the test cavity. The unlocking component is pressed to release the self-locking component after the test cavity is opened. At this time, the test platform will be slowly pushed out of the test cavity by the damping ring under the pushing force of the spring, thus achieving the effect of automatically pushing the test platform out of the test cavity.

[0016] By setting up a movable rotating component and a pressing and fixing component, when the PDLC device is placed on the test convex plate and the test stage is pushed into the test cavity, the movable rotating component is driven to rotate. The rotation of the movable rotating component will drive the pressing and fixing component to rotate. When the test stage is fully inserted into the test cavity and locked by the self-locking component, the pressing and fixing component is fixed on the top of the PDLC device for positioning. After the test stage is moved out of the test cavity, the pressing and fixing component will rotate in the opposite direction and move away from the PDLC device, realizing the effect of automatically fixing and automatically releasing the PDLC device when the test stage is moving. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a temperature characteristic tester for a PDLC device proposed in this utility model.

[0019] Figure 2 This is a three-dimensional cross-sectional view of the track assembly position in a temperature characteristic tester for PDLC devices proposed in this utility model.

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of the position of the movable rotating component in a temperature characteristic tester for a PDLC device proposed in this utility model.

[0021] Figure 4 This is a partial three-dimensional structural diagram of the movable rotating component and the pressing and fixing component in a temperature characteristic tester for a PDLC device proposed in this utility model.

[0022] Figure 5 This is a three-dimensional cross-sectional view of the pressing and fixing component position in a temperature characteristic tester for a PDLC device proposed in this utility model.

[0023] Figure 6 This is a three-dimensional cross-sectional view of another position of the movable rotating component in the temperature characteristic tester for a PDLC device proposed in this utility model.

[0024] The attached diagram shows: 1. Instrument body; 2. Test cavity; 3. Sealed door; 4. Track assembly; 5. Test platform; 6. Track groove; 7. Guide rod; 8. Spring component; 9. Positioning seat; 10. Self-locking assembly; 11. Unlocking assembly; 12. Damping ring; 13. Placement groove; 14. Elastic component; 15. Locking block; 16. Locking groove; 17. Limiting box; 18. Pressing block; 19. Test protrusion; 20. Limiting block; 21. Movable rotating assembly; 22. Pressing and fixing assembly; 23. Side teeth; 24. Transmission gear; 25. Fixing rod; 26. First transmission bevel gear; 27. Second transmission bevel gear; 28. Rotating shaft; 29. ​​Pressing frame; 30. Stabilizing rod; 31. Connecting rod; 32. Elastic component; 33. Pressing strip; 34. Track rod. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] refer to Figure 1-6 In this embodiment, the instrument body 1 and the test cavity 2 are included. The test cavity 2 is opened on one side of the instrument body 1. A sealing door 3 is provided on the surface of the instrument body 1 at the position corresponding to the test cavity 2. The sealing door 3 is an existing sealing door 3 component, which will not be described in detail here. A track assembly 4 is provided inside the test cavity 2. A test platform 5 is slidably connected on the track assembly 4. The test platform 5 is used to stably place the PDLC device.

[0027] Example 1

[0028] refer to Figure 1-6In this embodiment, the track assembly 4 includes a track rod 34, which is fixed at the bottom of the inner wall of the test cavity 2. The bottom of the test platform 5 is provided with a track groove 6, which is movably fitted onto the surface of the track rod 34. The test platform 5 slides on the surface of the track rod 34 through the track groove 6. When the test platform 5 moves, it will drive the track groove 6 to move, so that the test platform 5 can move freely out of the test cavity 2, which is convenient for placing the PDLC device and eliminates the need to put your hand into the inside of the test cavity 2 for placement.

[0029] Example 2

[0030] refer to Figure 1-6 In this embodiment, the track assembly 4 further includes a guide rod 7, a spring 8, a positioning seat 9, a self-locking assembly 10, and an unlocking assembly 11. The guide rod 7 is fixed to the inner wall of the test cavity 2. There are two sets of track rods 34, which are symmetrically arranged inside the test cavity 2 with the guide rod 7 as the axis of symmetry. The other end of the guide rod 7 is fixed to one side of the positioning seat 9, which is fixed to the bottom of the inner wall of the test cavity 2. The self-locking assembly 10 is located at the top of the positioning seat 9 and is used to position the test platform 5 when it returns to the inside of the test cavity 2, so that the test platform 5 is stably placed inside the test cavity 2. The unlocking assembly 11 is located on the surface of the test platform 5. The self-locking assembly 10, the unlocking assembly 11, and the guide rod 7 are all located on the inner wall of the test cavity 2. Within the same plane, the spring element 8 is movably sleeved on the surface of the guide rod 7. A damping ring 12 is provided on the inner wall of the test platform 5 that fits against the guide rod 7. The test platform 5 is movably sleeved on the surface of the guide rod 7 through the damping ring 12. One end of the spring element 8 moves on the surface of the test platform 5, and the other end of the spring element 8 is movably connected to the inner wall of the test cavity 2. The unlocking component 11 is used to unlock the self-locking component 10, so that the self-locking component 10 is separated from the test platform 5. In this way, the test platform 5 will push the damping ring 12 and the test platform 5 out of the test cavity 2 under the elastic force of the spring element 8. The damping ring 12 achieves the purpose of slow movement to avoid pushing too fast. When the damping ring 12 and the test platform 5 are completely pushed out of the test cavity 2, the positioning block limits the position of the test platform 5.

[0031] The self-locking assembly 10 includes a placement groove 13, an elastic element 14, and a locking block 15. The placement groove 13 is located on the top of the positioning seat 9. Both the elastic element 14 and the locking block 15 are movable inside the placement groove 13. The top end of the elastic element 14 is movably connected to the bottom end of the locking block 15. The bottom end of the elastic element 14 is movable at the bottom of the inner wall of the placement groove 13. The end of the locking block 15 away from the elastic element 14 extends to the outside of the placement groove 13 and the positioning seat 9. The top of the locking block 15 is provided with rounded corners. The unlocking assembly 11 includes a locking groove 16, a limiting box 17, and a pressing block 18. The locking groove 16 is located on the surface of the test platform 5, connecting the top and bottom of the test platform 5. The limiting box 17 is fixed at the top of the test platform 5 corresponding to the position of the locking groove 16. The pressing block 18 is movable inside the limiting box 17 and the locking groove 16. When the bottom of the pressing block 18 is stuck inside the locking groove 16, the top of the pressing block 18 just extends to the outside of the limiting box 17.

[0032] In this embodiment, the sealing door 3 needs to be opened first, and then the pressing block 18 is pressed down. The pressing block 18 moves downward along the inner wall of the limiting box 17 inside the limiting box 17, squeezing the locking block 15. In this way, the pressing block 18 will push the locking block 15 downward and separate it from the locking groove 16. Then, the elastic force of the spring 8 will push the test platform 5 with the damping ring 12 to slowly move out of the test cavity 2 along the guide rod 7 and the track rod 34. When the test platform 5 is completely moved out of the test cavity 2, the positioning block limits the position of the test platform 5. Then, the PDLC device to be tested is then placed in the test cavity 2. The component is placed on the upper surface of the test bench 5, and then the test bench 5 is pushed into the test cavity 2. As the test bench 5 moves, it will compress the spring component 8. When the test bench 5 is completely back into the test cavity 2, the elastic force of the elastic component 14 will push the locking block 15 upward, causing the locking block 15 to move upward and lock into the lock groove 16. In this way, the test bench 5 can be locked and positioned inside the test cavity 2. Then, the sealing door 3 of the test cavity 2 can be closed to perform temperature characteristic testing. It should be noted that the elastic component 14 at this position is a pressure spring component 8.

[0033] Example 3

[0034] refer to Figure 1-6In this embodiment, a test protrusion 19 is provided on the top of the test platform 5 to raise the PDLC device by one section. The PDLC device is placed on the top of the test protrusion 19. Limiting blocks 20 are provided around the test protrusion 19 on the top of the test platform 5. These limiting blocks 20 limit the PDLC device to prevent it from moving out of the test protrusion 19 and further position the PDLC device. Here, two sets of movable rotating components 21 are provided on the top of the test platform 5 near both sides. The movable rotating components 21 include side teeth 23, transmission gears 24, fixing rods 25, a first transmission bevel gear 26, and a second transmission bevel gear 27. Gear 27 and shaft 28 are rotatably connected to the top of test bench 5. The second transmission bevel gear 27 is fixed to one end face of shaft 28 near test cavity 2. The first transmission bevel gear 26 meshes with the second transmission bevel gear 27. The fixed rod 25 is fixedly connected to the top of test bench 5 near the position of the first transmission bevel gear 26. The first transmission bevel gear 26 is rotatably sleeved on the surface of the fixed rod 25. The transmission gear 24 is fixed to the top of the first transmission bevel gear 26 and is rotatably sleeved on the surface of the fixed rod 25. Side teeth 23 are fixed to both sides of the inner wall of test cavity 2 and mesh with transmission gear 24.

[0035] The two sets of movable rotating components 21 are provided with pressing and fixing components 22. The pressing and fixing components 22 include a pressing frame 29, a stabilizing rod 30, a connecting rod 31, an elastic element 32, and a pressing strip 33. The bottom end of the pressing frame 29 is fixed to the surface of the rotating shaft 28. The stabilizing rod 30 and the connecting rod 31 are both fixed to the surface of the pressing strip 33. The ends of the connecting rod 31 and the stabilizing rod 30 away from the pressing strip 33 pass through the pressing frame 29 and extend to the other side of the pressing frame 29. The elastic element 32 is movably sleeved on the surface of the connecting rod 31. One end of the elastic element 32 is movably connected to the surface of the pressing strip 33, and the other end of the elastic element 32 is movably connected to the surface of the pressing frame 29.

[0036] In this embodiment, during operation, when the test platform 5 moves into the test cavity 2, the movement of the test platform 5 will drive the fixed rod 25 and the first transmission bevel gear 26 and transmission gear 24 on the fixed rod 25 to move. When the first transmission bevel gear 26 and transmission gear 24 move, the transmission gear 24 is driven to rotate by the side teeth 23. When the transmission gear 24 rotates, it will drive the first transmission bevel gear 26 to rotate. The rotation of the first transmission bevel gear 26 will drive the second transmission bevel gear 27 to rotate. The rotation of the second transmission bevel gear 27 will drive the rotating shaft 28 to rotate, causing the rotating shaft 28 to rotate in the direction of the PDLC device. The rotation of the rotating shaft 28 will drive the pressing frame 29 to rotate. The rotation of the pressing frame 29 will drive the stabilizing rod 30 and the connecting rod 3 to rotate. 1. The elastic element 32 and the pressing strip 33 rotate. When the test stage 5 is fully inserted into the test cavity 2 and locked by the self-locking component 10, the pressing strip 33 presses against the surface of the PDLC device to fix its position. It should be noted that the pressing strip 33 has a certain force when it is pressed. This force is provided by the elastic element 32. The elastic force of the elastic element 32 pushes the pressing strip 33 to press tightly against the surface of the PDLC device. In this way, the PDLC device can be completely fixed while the test stage 5 is moving, without the need for separate operation. It should be noted that the elastic element 32 is a pressure spring, and the pressing strip 33 has a flexible rubber layer embedded in one side of the PDLC device to avoid damage to the PDLC device when pressing.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A temperature characteristic tester for a PDLC device, characterized by, Including instrument body (1) and test inner chamber (2), test inner chamber (2) is opened in the side of instrument body (1), the surface of instrument body (1) is provided with sealing door (3) at the position corresponding test inner chamber (2), the inside of test inner chamber (2) is provided with track assembly (4), track assembly (4) is slidably connected with test table (5) on it; The track assembly (4) includes a track bar (34), the track bar (34) is fixed on the bottom of the inner wall of the test inner chamber (2), the bottom of the test table (5) is provided with a track groove (6), the track groove (6) is movably sleeved on the surface of the track bar (34).

2. The temperature characteristic tester for PDLC device according to claim 1, wherein, The track assembly (4) further includes a guide rod (7), a spring member (8), a positioning seat (9), a self-locking assembly (10) and an unlocking assembly (11), the guide rod (7) is fixed on the inner wall of the test inner chamber (2), the other end of the guide rod (7) is fixed on one side of the positioning seat (9), the positioning seat (9) is fixed on the bottom of the inner wall of the test inner chamber (2), the self-locking assembly (10) is arranged on the top of the positioning seat (9), the unlocking assembly (11) is arranged on the surface of the test table (5), the self-locking assembly (10), the unlocking assembly (11) and the guide rod (7) are in the same plane, the spring member (8) is movably sleeved on the surface of the guide rod (7), the inner wall of the test table (5) is provided with a damping ring (12), the test table (5) is movably sleeved on the surface of the guide rod (7) through the damping ring (12), one end of the spring member (8) is movably arranged on the surface of the test table (5), the other end of the spring member (8) is movably connected to the inner wall of the test inner chamber (2).

3. The temperature characteristic tester for PDLC device according to claim 2, wherein, The self-locking assembly (10) includes a placing groove (13), a resilient member (14) and a lock block (15), the placing groove (13) is arranged on the top of the positioning seat (9), the resilient member (14) and the lock block (15) are movably arranged in the placing groove (13), the top end of the resilient member (14) is movably connected to the bottom end of the lock block (15), the bottom end of the resilient member (14) is movably arranged on the bottom of the inner wall of the placing groove (13), the end of the lock block (15) away from the resilient member (14) extends to the outside of the placing groove (13) and the positioning seat (9), and the top of the lock block (15) is provided with a rounded corner.

4. The temperature characteristic tester for PDLC device according to claim 3, wherein, The unlocking assembly (11) includes a lock groove (16), a limiting box (17) and a pressing block (18), the lock groove (16) is arranged on the surface of the test table (5) to communicate the top and the bottom of the test table (5), the limiting box (17) is fixed on the top of the test table (5) corresponding to the position of the lock groove (16), and the pressing block (18) is movably arranged in the limiting box (17) and the lock groove (16), when the bottom of the pressing block (18) is clamped in the lock groove (16), the top of the pressing block (18) extends to the outside of the limiting box (17).

5. The temperature characteristic tester for PDLC device according to claim 4, wherein, The top of the test platform (5) is provided with a test convex plate (19), the top of the test platform (5) is provided with a limiting block (20) at the position around the test convex plate (19), and the top of the test platform (5) is provided with two groups of movable rotating assemblies (21) near the positions of two sides, and the two groups of movable rotating assemblies (21) are provided with pressing fixing assemblies (22).

6. The temperature characteristic tester for PDLC device according to claim 5, wherein, The movable rotating assembly (21) comprises side teeth (23), a transmission gear (24), a fixed rod (25), a first transmission bevel gear (26), a second transmission bevel gear (27) and a rotating shaft (28), the rotating shaft (28) is rotatably connected to the top of the test platform (5), the second transmission bevel gear (27) is fixed to one end face of the rotating shaft (28) close to the test inner cavity (2), the first transmission bevel gear (26) is in mesh with the second transmission bevel gear (27), the fixed rod (25) is fixedly connected to the top of the test platform (5) close to the position of the first transmission bevel gear (26), the first transmission bevel gear (26) is rotatably sleeved on the surface of the fixed rod (25), the transmission gear (24) is fixed to the top of the first transmission bevel gear (26) and rotatably sleeved on the surface of the fixed rod (25), the side teeth (23) are fixed to the two side faces of the inner wall of the test inner cavity (2), and the side teeth (23) are in mesh with the transmission gear (24).

7. The temperature characteristic tester for PDLC device according to claim 6, wherein, The pressing fixing assembly (22) comprises a pressing frame (29), a stabilizing rod (30), a connecting rod (31), an elastic piece (32) and a pressing strip (33), the bottom end face of the pressing frame (29) is fixed to the surface of the rotating shaft (28), the stabilizing rod (30) and the connecting rod (31) are both fixed to the surface of the pressing strip (33), one end of the connecting rod (31) and the stabilizing rod (30) away from the pressing strip (33) extends to the other side of the pressing frame (29) after penetrating through the pressing frame (29), the elastic piece (32) is movably sleeved on the surface of the connecting rod (31), one end of the elastic piece (32) is movably connected to the surface of the pressing strip (33), and the other end of the elastic piece (32) is movably connected to the surface of the pressing frame (29).

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