A rapid temperature changing device

Abstract

The utility model discloses a quick temperature changing device, including the body, the body is installed transmission mechanism, transmission mechanism is installed with sample stage, sample stage can be in first direction movement through transmission mechanism, define transmission mechanism movement direction as first direction, the body is installed with two temperature changing platform at least along first direction arrangement, sample stage realizes temperature change through temperature changing platform, the utility model has the advantages that: through adjusting transmission mechanism makes sample stage along first direction movement on two temperature changing platforms, makes the sample in sample stage can be rapidly from high temperature environment instantaneous transfer into low temperature environment, realizes temperature impact in extremely short time, has reduced the sample's transfer time, and the test effect is better.

Description

Technical Field

[0001] This utility model relates to the field of scientific instrument technology, and in particular to a rapid temperature change device. Background Technology

[0002] A variable-temperature device is a device that places a sample under test at different ambient temperatures to detect its temperature and morphological changes under these conditions. It tests the sample by rapidly changing its temperature between high and low temperatures. Current technology uses high-low temperature variable-temperature stages to continuously and gradually change the temperature of the sample area at a set rate through heating and cooling systems. However, for scenarios requiring testing products to withstand drastic temperature changes in a very short time (such as the ability of electronic components to rapidly transition from a high-temperature environment to a low-temperature environment), a single high-low temperature variable-temperature stage cannot meet the requirements due to the limitation of its heating and cooling rates. Although some high-performance high-low temperature variable-temperature stages can cover a wide temperature range (e.g., -196°C to 600°C or higher), they typically can only maintain one temperature environment at a time.

[0003] For example, the Chinese utility model patent (authorization announcement number: CN220071704U) provides a vacuum heating and cooling stage for a material temperature-changing resistivity experiment. The above technology achieves the function of heating and cooling the sample stage by installing a heating device and a cooling device inside the sample stage. When heating is needed, heating is carried out by heating rods, and when cooling is needed, cooling is carried out by introducing liquid nitrogen. Therefore, the above utility model also has the problem mentioned above: it can only maintain one temperature environment at the same time and it is difficult to achieve rapid temperature change.

[0004] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a rapid temperature-changing device that can quickly change the temperature of a sample.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A rapid temperature-changing device includes a main body, a transmission mechanism mounted on the main body, a sample stage mounted on the transmission mechanism, the sample stage being movable in a first direction via the transmission mechanism, the direction of movement of the transmission mechanism being defined as the first direction, the main body being equipped with at least two temperature-changing stages arranged along the first direction, and the sample stage achieving temperature change via the temperature-changing stages.

[0007] Furthermore, the sample stage includes a connecting frame and a sample dish, the sample dish being mounted on the connecting frame, and the transmission mechanism including a gear and a rack, the connecting frame being fixedly mounted on the rack, the rack moving along a first direction by means of the rotation of the gear.

[0008] Furthermore, a knob is fixedly fitted onto the gear.

[0009] Furthermore, the body is provided with a slide rail extending along a first direction, and a slider is slidably engaged on the slide rail, the slider being fixedly engaged with the rack.

[0010] Furthermore, a heat insulation plate is installed between two adjacent temperature-changing platforms.

[0011] Furthermore, at least one of the temperature-changing platforms is connected to a heating device, and at least one of the temperature-changing platforms is connected to a cooling device.

[0012] Furthermore, the main body includes a shell body and a cover plate, the shell body and the cover plate are fixedly fitted together, the shell body has a cavity, the cavity is used to accommodate the transmission mechanism, the sample stage and the temperature-changing stage.

[0013] Furthermore, the cover plate is provided with a viewing window.

[0014] With the above structure, the beneficial effects of this utility model are as follows: The rapid temperature change device of this utility model, by adjusting the transmission mechanism, makes the sample stage move along the first direction on two temperature change stages, so that the sample in the sample stage can be quickly transferred from a high temperature environment to a low temperature environment, realizing temperature shock in a very short time, reducing the sample transfer time, and improving the test effect. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is an exploded three-dimensional structural diagram of the present invention; Figure 3 This is a partial exploded three-dimensional structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the adjustment mechanism of this utility model.

[0017] Figures 1 to 4 The winning number is: 1. Body; 10. Cavity; 11. Shell body; 12. Cover plate; 120. Viewing window; 2. Transmission mechanism; 21. Rack; 22. Gear; 23. Knob; 24. Slide rail; 25. Slider; 3. Temperature stage; 31. Heat insulation plate; 4. Sample stage; 41. Connecting frame; 42. Sample dish. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] It should be noted that in this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this utility model and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 4As shown, a rapid temperature-changing device includes a body 1, which comprises a shell body 11 and a cover plate 12. The shell body 11 and the cover plate 12 are fixedly fitted together. The shell body 11 has a cavity 10. The fixed connection between the shell body 11 and the cover plate 12 allows the cavity 10 to form a sealed cavity. The cover plate 12 is provided with a viewing window 120. In this embodiment, the viewing window 120 is made of quartz glass and is convenient for microscopic observation. The shell body 11 is equipped with a transmission mechanism 2 located within the cavity 10. The transmission mechanism 2 is equipped with a sample stage 4, which can move in a first direction via the transmission mechanism 2. The transmission mechanism is defined as follows. 2. The direction of movement is the first direction. The main body 1 is equipped with at least two variable temperature stages 3 arranged along the first direction. The sample stage 4 achieves temperature change through the variable temperature stages 3. In this embodiment, there are two variable temperature stages 3. One variable temperature stage 3 is connected to a heating device and is a hot stage. The other variable temperature stage 3 is connected to a cooling device and is a cold stage. A heat insulation plate 31 is provided between two adjacent variable temperature stages 3. The heat insulation plate 31 can prevent temperature interference. Each module is equipped with an independent temperature control system. This means that the hot stage and the cold stage can be maintained at two completely different target temperatures at the same time and continuously (for example, the hot stage is 400°C and the cold stage is -100°C). This provides a premise for instantaneous thermal shock.

[0022] In addition, the upper surfaces of the temperature-changing stage 3 are all in the same plane, so the sample stage 4 will not have any jerking when it moves, and the upper surface of the heat insulation plate 31 is slightly lower than the upper surface of the temperature-changing stage 3.

[0023] The sample stage 4 includes a connecting frame 41 and a sample dish 42. The sample dish 42 is mounted on the connecting frame 41, and the bottom of the sample dish 42 is in contact with the upper surface of the temperature-changing stage 3, thus enabling faster heat transfer. The transmission mechanism 2 includes a gear 22 and a rack 21. A knob 23 is fixedly fitted on the gear 22, which allows the gear 22 to be rotated more conveniently. The connecting frame 41 is fixedly mounted on the rack 21, and the rack 21 moves along a first direction by means of the rotation of the gear 22.

[0024] The main body 1 is provided with a slide rail 24 extending along a first direction. A slider 25 is slidably fitted on the slide rail 24. The slider 25 is fixedly fitted with the rack 21. The cooperation between the slide rail 24 and the slider 25 can reduce the friction during movement, thus making the transfer of the sample dish 42 smoother.

[0025] In this example, the first direction is a straight line. The first direction can be the length direction of the shell body 11, the width direction of the shell body 11, or an arc direction.

[0026] In practice: First, the heating and cooling devices are activated to heat and cool the two variable temperature stages 3 respectively. Then, the sample to be tested is placed in the sample dish 42, ensuring that the sample is in full contact with the bottom surface of the sample dish 42 to optimize heat conduction. Next, the knob 23 on the gear 22 is rotated. Through the meshing transmission between the gear 22 and the rack 21, the connecting frame 41 fixed on the rack 21 and the sample dish 42 are moved along the slide rail 24 towards one of the variable temperature stages 3 (such as the hot stage) until the bottom of the sample dish 42 is in close contact with the surface of the hot stage, thereby rapidly heating the sample. During this process, the sample can be observed in real time in the high-temperature environment through the quartz glass viewing window 120 on the cover plate 12 in conjunction with a microscope. The sample exhibits its morphology and temperature changes under varying conditions. When testing the sample's tolerance to sudden temperature changes, the knob 23 is quickly rotated in the opposite direction, causing the rack 21 to slide the sample stage 4 rapidly along the first direction to another variable-temperature stage 3 (such as a cold stage). The bottom of the sample dish 42 contacts the surface of the cold stage, and the sample instantly transitions from a high-temperature environment (such as 400°C) to a low-temperature environment (such as -100°C), achieving a temperature shock in an extremely short time. Because a heat insulation plate 31 is installed between adjacent variable-temperature stages 3, the temperatures of the hot stage and the cold stage do not interfere with each other, ensuring the continuous stability of the two extreme temperature environments. Therefore, two independently temperature-controlled variable-temperature stages 3 (hot stage and cold stage) are integrated through physical separation. This integrated structure greatly shortens the sample's movement path, laying the foundation for the rapid temperature switching of the sample dish 42, while also making the equipment more compact.

[0027] Throughout the operation, the cooperation between the slide rail 24 and the slider 25 effectively reduces the friction when the sample stage 4 moves, making the transfer of the sample between the two temperature-changing stages 3 smoother and ensuring the speed and accuracy of temperature changes.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A rapid temperature-changing device, comprising a body (1), characterized in that: The main body (1) is equipped with a transmission mechanism (2), and the transmission mechanism (2) is equipped with a sample stage (4). The sample stage (4) can move in a first direction through the transmission mechanism (2). The direction of movement of the transmission mechanism (2) is defined as the first direction. The main body (1) is equipped with at least two variable temperature stages (3) arranged along the first direction. The sample stage (4) achieves temperature change through the variable temperature stages (3).

2. The rapid temperature change device according to claim 1, characterized in that: The sample stage (4) includes a connecting frame (41) and a sample dish (42). The sample dish (42) is mounted on the connecting frame (41). The transmission mechanism (2) includes a gear (22) and a rack (21). The connecting frame (41) is fixedly mounted on the rack (21). The rack (21) moves along a first direction by means of the rotation of the gear (22).

3. The rapid temperature change device according to claim 2, characterized in that: A knob (23) is fixedly fitted onto the gear (22).

4. The rapid temperature change device according to claim 2, characterized in that: The main body (1) is provided with a slide rail (24) extending along a first direction, and a slider (25) is slidably fitted on the slide rail (24), and the slider (25) is fixedly fitted with the rack (21).

5. The rapid temperature change device according to claim 1, characterized in that: A heat insulation plate (31) is provided between two adjacent temperature-changing platforms (3).

6. The rapid temperature change device according to claim 1, characterized in that: At least one of the temperature-changing platforms (3) is connected to a heating device, and at least one of the temperature-changing platforms (3) is connected to a cooling device.

7. The rapid temperature change device according to claim 1, characterized in that: The main body (1) includes a shell body (11) and a cover plate (12). The shell body (11) and the cover plate (12) are fixedly engaged. The shell body (11) has a cavity (10) for accommodating the transmission mechanism (2), the sample stage (4) and the temperature-changing stage (3).

8. The rapid temperature change device according to claim 7, characterized in that: The cover plate (12) is provided with a viewing window (120).

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