Temperature adjusting device for temperature characteristic test of PDLC (Polymer Dispersed Liquid Crystal) device

Abstract

The utility model discloses a temperature adjusting device for a PDLC device temperature characteristic test, and relates to the technical field of PDLC device test, the temperature adjusting device comprises a protection box and a temperature control box, one end of the temperature control box is provided with a temperature adjusting installation assembly, and an arranged positioning frame can improve the stability of the use of an adjusting cylinder, a rotating shaft and a fixed block. An arranged rotating shaft is fixedly connected with an adjusting cylinder in a threaded mode through an adjusting screw rod, plane movement of a positioning frame on the top of a mounting plate can be achieved, the use position of a first magnet can be conveniently adjusted, the first magnet can be conveniently replaced, and a first fixing frame and a second fixing frame can be fixedly connected with a first adjusting rod and a second adjusting rod in a threaded mode through adjusting screw rods; the use stability of the first limiting frame and the second limiting frame is achieved, the first magnet and the second magnet attract each other, the temperature sensor is adjusted to move in the temperature control box to conduct induction temperature adjustment work on the temperature in the temperature control box, the locking shaft is used for installing the limiting plate, and one end of the arranged limiting plate makes contact with one end of the first magnet and one end of the second magnet to limit the first magnet and the second magnet.

Description

Technical Field

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

[0002] Temperature characteristic testing is crucial in the research and development and production of PDLC (polymer dispersed liquid crystal) devices. The performance of PDLC devices, such as transparency and response time, changes with temperature. Therefore, a device is needed that can accurately control the temperature and test the performance of PDLC devices at different temperatures.

[0003] A patent with publication number CN218156783U discloses a high and low temperature tracking error testing device for optical devices. This patent includes a testing base, a testing slot, an optical fiber connector, an electrical connector, a clearance port, a heat spreader, a temperature sensor, a temperature regulating unit, a semiconductor cooler, water-cooled pipes, a heating element, an over-temperature protection probe, a water chiller, a temperature controller, screw connectors, and optical devices. Multiple optical devices are placed one-to-one on the testing base. Then, each temperature regulating unit is activated to adjust the temperature of its corresponding testing base, ensuring the optical devices are at the target temperature. Because the temperature regulating unit, the heat spreader, and the testing base are in direct contact, heat transfer efficiency is improved. Furthermore, the heat spreader reduces the temperature difference between multiple testing bases, resulting in higher accuracy when testing multiple optical devices simultaneously, ensuring testing precision. In addition, since multiple temperature regulating units correspond one-to-one with multiple testing bases, independent temperature regulation is possible. Therefore, if one temperature regulating unit fails, it does not affect the testing of other temperature regulating units and their corresponding testing bases, improving practicality. However, this patent still has the following problems:

[0004] When using a temperature control chamber for testing the temperature characteristics of PDLC devices, a temperature sensor is needed to monitor and adjust the temperature inside the chamber. However, the location of the temperature sensor is usually fixed, and it is not possible to adjust the location of the temperature sensor inside the temperature control chamber to sense the temperature in real time and achieve the function of temperature adjustment.

[0005] To address the above issues, a temperature control device for testing the temperature characteristics of PDLC devices needs to be designed to overcome these problems. Utility Model Content

[0006] The main objective of this invention is to provide a temperature control device for testing the temperature characteristics of PDLC devices, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A temperature control device for testing the temperature characteristics of a PDLC device, comprising a protective box and a temperature control box, wherein the temperature control box is installed inside the protective box and a temperature control mounting assembly is installed at one end of the temperature control box.

[0009] The temperature control mounting assembly includes a support frame disposed at one end of the temperature control box. A linear motion guide rail is disposed at the end of the support frame away from the temperature control box. A motor is disposed at the top of the support frame. A coupling is disposed at the bottom of the motor through the top of the support frame. A lead screw is disposed at the bottom of the coupling. A nut is disposed on the outer wall of the lead screw. A connecting rod is mounted on one end of the nut. A fixing panel is mounted on the end of the connecting rod away from the nut. An mounting plate is mounted on the end of the fixing panel away from the connecting rod. A positioning frame is mounted on the top of the mounting plate. An adjusting cylinder is mounted on the inner side of the positioning frame near the mounting plate. A rotating shaft is installed inside the adjusting cylinder. An adjusting screw is mounted on one end of the adjusting cylinder. A fixing block is mounted on the inner side of the positioning frame away from the adjusting cylinder. A first fixing frame is mounted on the end of the fixing block near the temperature control box. A first adjusting rod is mounted on the inner side of the first fixing frame. A first fixing rod is mounted on the end of the first adjusting rod away from the first fixing frame. A first limiting frame is mounted on one end of the first fixing rod. A first magnet is disposed inside the first limiting frame.

[0010] As a preferred embodiment of this utility model, a fixed base is installed at one end of the interior of the temperature control box, a protective frame is installed on the top of the fixed base, a temperature controller is installed in the middle of the top of the fixed base, a temperature sensor is provided at one end of the temperature controller, a second fixed frame is installed at the end of the protective frame near the temperature control box, a second adjusting rod is installed on the inner side of the second fixed frame, a second fixed rod is installed at the end of the second adjusting rod away from the second fixed frame, a second limiting frame is installed at one end of the second fixed rod, a second magnet is installed on the inner side of the second limiting frame, a locking shaft is installed at one end of both the first and second limiting frames, and a limiting plate is installed at the end of the locking shaft away from both the first and second limiting frames.

[0011] In a preferred embodiment of this utility model, the support frame is fixedly connected to the linear motion guide rail, the motor is connected to the lead screw via a coupling, the lead screw is threadedly fixedly connected to the nut, and the nut is threadedly connected to the connecting rod.

[0012] As a preferred embodiment of this utility model, the connecting rod is threadedly fixed to the fixed panel, the fixed panel is fixedly fixed to the mounting plate, the adjusting cylinder is sleeved on the outer wall of the rotating shaft, the rotating shaft passes through the bottom of the adjusting cylinder and is rotatably connected to the positioning frame, the bottom of the rotating shaft is threadedly fixed to the top of the mounting plate, and the adjusting cylinder is threadedly connected to the rotating shaft through an adjusting screw.

[0013] As a preferred embodiment of this utility model, the positioning frame is fixedly connected to the fixing block, the fixing block is fixedly connected to the first fixing frame, the first fixing frame is threadedly fixedly connected to the first adjusting rod, the first adjusting rod is rotatably connected to the first fixing rod, the first fixing rod is rotatably connected to the first limiting frame, and the first magnet is snapped into the first limiting frame.

[0014] As a preferred embodiment of this utility model, one side of the fixing seat contacts the inside of the temperature control box, the fixing seat is fixedly connected to the protective frame, the protective frame is fixedly connected to the second fixing bracket, and the second fixing bracket is threadedly connected to the second adjusting rod through the adjusting screw.

[0015] As a preferred embodiment of this utility model, the second adjusting rod is rotatably connected to the second fixing rod, the second fixing rod is rotatably connected to the second limiting frame, the second magnet is snapped into the second limiting frame, the first limiting frame and the second limiting frame are both threadedly fixedly connected to the locking shaft, and the locking shaft is threadedly fixedly connected to the limiting plate.

[0016] As a preferred embodiment of this utility model, a support plate is installed at the bottom of the temperature control box, a cooler is provided at one end of the top of the support plate, a heater is provided at the end of the support plate away from the cooler, and a real-time camera is provided at one end of the top of the support plate.

[0017] As a preferred embodiment of this utility model, the temperature control box is made of engineering plastic, and both the first limiting frame and the second limiting frame are made of engineering plastic.

[0018] Beneficial effects

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The temperature control device for testing the temperature characteristics of this PDLC device converts rotational motion into linear motion through the interaction of a lead screw and a nut, enabling the fixed panel to move linearly on one side of the linear guide rail. The positioning frame improves the stability of the adjusting cylinder, rotating shaft, and fixed block. The rotating shaft is threadedly connected to the adjusting cylinder via an adjusting screw, allowing the positioning frame to move on the plane at the top of the mounting plate, facilitating the adjustment and replacement of the first magnet.

[0021] The temperature control device for testing the temperature characteristics of this PDLC device can be fixedly connected to the first and second adjusting rods via adjusting screws through a first fixed frame and a second fixed frame, respectively. This ensures the stability of the first and second limiting frames. The first and second limiting frames limit and lock the first and second magnets, allowing them to attract each other and enabling the temperature sensor to move within the temperature control chamber to sense and adjust the temperature. A locking shaft is installed on the limiting plate, with one end of the limiting plate contacting one end of the first and second magnets for limiting their movement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the lead screw structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the first magnet mounting structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the second magnet mounting structure of this utility model.

[0026] In the diagram: 1. Protective box; 2. Temperature control box; 3. Support plate; 4. Temperature control mounting assembly; 5. Cooler; 6. Heater; 7. Real-time camera; 401. Support frame; 402. Linear guide rail; 403. Motor; 404. Coupling; 405. Lead screw; 406. Nut; 407. Connecting rod; 408. Fixed panel; 409. Mounting plate; 410. Positioning frame; 411. Adjusting cylinder; 412. Rotating shaft; 413. Adjusting screw; 4 14. Fixing block; 415. First fixing frame; 416. First adjusting rod; 417. First fixing rod; 418. First limiting frame; 419. First magnet; 420. Fixing base; 421. Protective frame; 422. Temperature controller; 423. Temperature sensor; 424. Second fixing frame; 425. Second adjusting rod; 426. Second fixing rod; 427. Second limiting frame; 428. Second magnet; 429. Locking shaft; 430. Limiting plate. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figures 1-4As shown, a temperature control device for testing the temperature characteristics of a PDLC device includes a protective box 1 and a temperature control box 2. The temperature control box 2 is installed inside the protective box 1, and a temperature control mounting component 4 is installed at one end of the temperature control box 2.

[0029] The temperature control mounting assembly 4 includes a support frame 401 located at one end of the temperature control box 2. A linear motion guide rail 402 is provided at the end of the support frame 401 away from the temperature control box 2. A motor 403 is located at the top of the support frame 401. A coupling 404 is provided through the bottom of the motor 403 and extending through the top of the support frame 401. A lead screw 405 is provided at the bottom of the coupling 404. A nut 406 is provided on the outer wall of the lead screw 405. A connecting rod 407 is installed at one end of the nut 406. A fixing panel 408 is installed at the end of the connecting rod 407 away from the nut 406. A mounting plate 409 is installed at the end of the fixing panel 408 away from the connecting rod 407. A positioning bracket 410 is installed on the top of the mounting plate 409. An adjusting cylinder 411 is installed on the inner side of the positioning frame 410 near the mounting plate 409. A rotating shaft 412 is installed inside the adjusting cylinder 411. An adjusting screw 413 is installed at one end of the adjusting cylinder 411. A fixing block 414 is installed on the inner side of the positioning frame 410 away from the adjusting cylinder 411. A first fixing frame 415 is installed on the end of the fixing block 414 near the temperature control box 2. A first adjusting rod 416 is installed on the inner side of the first fixing frame 415. A first fixing rod 417 is installed on the end of the first adjusting rod 416 away from the first fixing frame 415. A first limiting frame 418 is installed on one end of the first fixing rod 417. A first magnet 419 is provided inside the first limiting frame 418.

[0030] A fixed base 420 is installed at one end inside the temperature control box 2. A protective frame 421 is installed on the top of the fixed base 420. A temperature controller 422 is installed in the middle of the top of the fixed base 420. A temperature sensor 423 is provided at one end of the temperature controller 422. A second fixed frame 424 is installed at the end of the protective frame 421 near the temperature control box 2. A second adjusting rod 425 is installed on the inner side of the second fixed frame 424. A second fixed rod 426 is installed at the end of the second adjusting rod 425 away from the second fixed frame 424. A second limiting frame 427 is installed at one end of the second fixed rod 426. A second magnet 428 is installed on the inner side of the second limiting frame 427. A locking shaft 429 is installed at one end of the first limiting frame 418 and the second limiting frame 427. A limiting plate 430 is installed at the end of the locking shaft 429 away from the first limiting frame 418 and the second limiting frame 427.

[0031] Support frame 401 is fixedly connected to linear guide rail 402. Motor 403 is driven by lead screw 405 via coupling 404. Lead screw 405 is threadedly fixedly connected to nut 406. Nut 406 is threadedly connected to connecting rod 407. Connecting rod 407 is threadedly fixedly connected to fixed panel 408. Fixed panel 408 is fixedly connected to mounting plate 409. Adjusting cylinder 411 is sleeved on the outer wall of rotating shaft 412. Rotating shaft 412 passes through the bottom of adjusting cylinder 411 and is rotatably connected to positioning frame 410. The bottom of rotating shaft 412 is threadedly fixedly connected to the top of mounting plate 409. Adjustment... The cylinder 411 is threadedly connected to the rotating shaft 412 via the adjusting screw 413; the positioning frame 410 is fixedly connected to the fixing block 414, the fixing block 414 is fixedly connected to the first fixing frame 415, the first fixing frame 415 is threadedly connected to the first adjusting rod 416, the first adjusting rod 416 is rotatably connected to the first fixing rod 417, the first fixing rod 417 is rotatably connected to the first limiting frame 418, the first magnet 419 is snapped into the first limiting frame 418, the temperature control box 2 is made of engineering plastic, and the first limiting frame 418 and the second limiting frame 427 are also made of engineering plastic;

[0032] In this system, motor 403 drives lead screw 405 to rotate via coupling 404. Lead screw 405 is connected to nut 406 via a thread, causing nut 406 to move along the axis of lead screw 405. This, in turn, drives connecting rod 407 and fixed panel 408 to move linearly on linear guide rail 402. Adjusting cylinder 411 is sleeved on the outer wall of rotating shaft 412 and is threadedly connected to rotating shaft 412 via adjusting screw 413, enabling planar movement of positioning frame 410 on top of mounting plate 409. The position frame 410 ensures the stability of the adjustment cylinder 411, the rotating shaft 412, and the fixing block 414. The first fixing frame 415 and the second fixing frame 424 are threadedly fixed to the first adjusting rod 416 and the second adjusting rod 425 through the adjusting screw 413, which respectively drive the first limiting frame 418 and the second limiting frame 427 to move. The first magnet 419 is snapped into the first limiting frame 418, and the use of the locking shaft 429 and the limiting plate 430 is used to limit the use of the first magnet 419.

[0033] One side of the fixed base 420 contacts the inside of the temperature control box 2. The fixed base 420 is fixedly connected to the protective frame 421. The protective frame 421 is fixedly connected to the second fixed bracket 424. The second fixed bracket 424 is threadedly fixedly connected to the second adjusting rod 425 through the adjusting screw 413. The second adjusting rod 425 is rotatably connected to the second fixed rod 426. The second fixed rod 426 is rotatably connected to the second limiting frame 427. The second magnet 428 is snapped into the second limiting frame 427. The first limiting frame 418 and the second limiting frame 427 are both threadedly fixedly connected to the locking shaft 429. The locking shaft 429 is threadedly fixedly connected to the limiting plate 430.

[0034] The first magnet 419 and the second magnet 428 are respectively snapped into the first limiting frame 418 and the second limiting frame 427, and are threadedly fixed to the limiting plate 430 through the locking shaft 429, which improves the stability of the second limiting frame 427 and the second magnet 428. The second limiting frame 427 uses the locking shaft 429 to install the limiting plate 430 to limit the use of the second magnet 428. The first magnet 419 and the second magnet 428 attract each other to realize the use position of the temperature sensor 423 in the temperature control box 2.

[0035] A support plate 3 is installed at the bottom of the temperature control chamber 2. A cooler 5 is installed at one end of the top of the support plate 3, and a heater 6 is installed at the end of the support plate 3 away from the cooler 5. A real-time camera 7 is installed at one end of the top of the support plate 3. The temperature controller 422 determines whether heating or cooling is needed based on the set temperature range and the input of the temperature sensor 423. The cooler 5 and the heater 6 are turned on or off according to the instructions of the temperature controller 422 to regulate the temperature. The real-time camera 7 provides visual monitoring to ensure that the operator can observe the entire process, especially when it is necessary to record the experimental process or the operating status of the equipment.

[0036] It should be noted that this utility model is a temperature control device for testing the temperature characteristics of PDLC devices. In use, a temperature sensor 423 is installed inside the temperature control box 2 to monitor the temperature inside the box in real time. The temperature sensor 423 can move within the temperature control box 2 by attracting the first magnet 419 in the first limiting frame 418 and the second magnet 428 in the second limiting frame 427, adapting to different temperature testing requirements. A motor 403 drives a lead screw 405 to rotate. The lead screw 405 is connected to a nut 406 via a thread, causing the nut 406 to move along the axis of the lead screw 405, thereby driving the connecting rod 407 and the fixed panel 408 to move linearly on the linear guide rail 402. The fixed panel 408 is fixedly connected to the mounting plate 409. The positioning frame 410 improves the stability of the adjusting cylinder 411, the rotating shaft 412, and the fixing block 414. The positioning frame 410 adjusts the screw... 413 is threadedly connected to the rotating shaft 412, enabling the positioning frame 410 to move on the top of the mounting plate 409, facilitating the adjustment and replacement of the first magnet 419. The first limiting frame 418 and the second limiting frame 427 are threadedly fixed to the limiting plate 430 via the locking shaft 429, improving the stability of the first magnet 419 and the second magnet 428 within the first limiting frame 418 and the second limiting frame 427, and preventing excessive movement. The temperature sensor 423 is positioned within the temperature control box 2 by the mutual attraction between the first magnet 419 within the first limiting frame 418 and the second magnet 428 within the second limiting frame 427. The temperature sensor 423 transmits the monitored temperature information to the temperature controller 422. The temperature controller 422 controls the working state of the cooler 5 and the heater 6 according to the set temperature target value to achieve precise temperature control within the temperature control box 2.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature control device for testing the temperature characteristics of a PDLC device, comprising a protective chamber (1) and a temperature control chamber (2), characterized in that: The protective box (1) is equipped with a temperature control box (2) inside, and a temperature adjustment installation component (4) is provided at one end of the temperature control box (2); The temperature control mounting assembly (4) includes a support frame (401) disposed at one end of the temperature control box (2). A linear guide rail (402) is disposed at the end of the support frame (401) away from the temperature control box (2). A motor (403) is disposed at the top of the support frame (401). A coupling (404) is disposed at the bottom of the motor (403) penetrating the top of the support frame (401). A lead screw (405) is disposed at the bottom of the coupling (404). A nut (406) is disposed on the outer wall of the lead screw (405). A connecting rod (407) is mounted at one end of the nut (406). A fixing panel (408) is mounted at the end of the connecting rod (407) away from the nut (406). A mounting plate (409) is mounted at the end of the fixing panel (408) away from the connecting rod (407). A positioning bracket (41) is mounted on the top of the mounting plate (409). 0), an adjusting cylinder (411) is installed on the inner side of the positioning frame (410) near the mounting plate (409). A rotating shaft (412) is installed inside the adjusting cylinder (411). An adjusting screw (413) is installed at one end of the adjusting cylinder (411). A fixing block (414) is installed on the inner side of the positioning frame (410) away from the adjusting cylinder (411). A first fixing frame (415) is installed on the end of the fixing block (414) near the temperature control box (2). A first adjusting rod (416) is installed on the inner side of the first fixing frame (415). A first fixing rod (417) is installed on the end of the first adjusting rod (416) away from the first fixing frame (415). A first limiting frame (418) is installed on one end of the first fixing rod (417). A first magnet (419) is provided inside the first limiting frame (418).

2. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 1, characterized in that: A fixed base (420) is installed at one end inside the temperature control box (2). A protective frame (421) is installed on the top of the fixed base (420). A temperature controller (422) is installed in the middle of the top of the fixed base (420). A temperature sensor (423) is provided at one end of the temperature controller (422). A second fixed bracket (424) is installed at the end of the protective frame (421) near the temperature control box (2). A second adjusting rod (425) is installed on the inner side of the second fixed bracket (424). 425) A second fixing rod (426) is installed at one end away from the second fixing frame (424), a second limiting frame (427) is installed at one end of the second fixing rod (426), a second magnet (428) is installed on the inner side of the second limiting frame (427), a locking shaft (429) is installed at one end of the first limiting frame (418) and the second limiting frame (427), and a limiting plate (430) is installed at the end of the locking shaft (429) away from the first limiting frame (418) and the second limiting frame (427).

3. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 1, characterized in that: The support frame (401) is fixedly connected to the linear guide rail (402), the motor (403) is connected to the lead screw (405) via a coupling (404), the lead screw (405) is threadedly fixedly connected to the nut (406), and the nut (406) is threadedly connected to the connecting rod (407).

4. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 1, characterized in that: The connecting rod (407) is threadedly fixed to the fixed panel (408), the fixed panel (408) is fixedly fixed to the mounting plate (409), the adjusting cylinder (411) is sleeved on the outer wall of the rotating shaft (412), the rotating shaft (412) passes through the bottom of the adjusting cylinder (411) and is rotatably connected to the positioning frame (410), the bottom of the rotating shaft (412) is threadedly fixed to the top of the mounting plate (409), and the adjusting cylinder (411) is threadedly connected to the rotating shaft (412) through the adjusting screw (413).

5. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 1, characterized in that: The positioning frame (410) is fixedly connected to the fixing block (414), the fixing block (414) is fixedly connected to the first fixing frame (415), the first fixing frame (415) is threadedly fixedly connected to the first adjusting rod (416), the first adjusting rod (416) is rotatably connected to the first fixing rod (417), the first fixing rod (417) is rotatably connected to the first limiting frame (418), and the first magnet (419) is snapped into the first limiting frame (418).

6. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 2, characterized in that: One side of the fixed base (420) is in contact with the inside of the temperature control box (2). The fixed base (420) is fixedly connected to the protective frame (421). The protective frame (421) is fixedly connected to the second fixed bracket (424). The second fixed bracket (424) is threadedly fixedly connected to the second adjusting rod (425) through the adjusting screw (413).

7. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 2, characterized in that: The second adjusting rod (425) is rotatably connected to the second fixing rod (426), the second fixing rod (426) is rotatably connected to the second limiting frame (427), the second magnet (428) is snapped into the second limiting frame (427), the first limiting frame (418) and the second limiting frame (427) are both threadedly fixedly connected to the locking shaft (429), and the locking shaft (429) is threadedly fixedly connected to the limiting plate (430).

8. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 1, characterized in that: The temperature control box (2) has a support plate (3) installed at the bottom inside. A cooler (5) is provided at one end of the top of the support plate (3). A heater (6) is provided at the end of the support plate (3) away from the cooler (5). A real-time camera (7) is provided at one end of the top of the support plate (3).

9. The temperature control device for testing the temperature characteristics of a PDLC device according to claim 1, characterized in that: The temperature control box (2) is made of engineering plastic, and the first limiting frame (418) and the second limiting frame (427) are both made of engineering plastic.

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