Cold and hot table for objective table
By optimizing the structural layout of the hot and cold stages, the arrangement of the medium flow channels and heating elements, the problem of poor cooling or heating effects of the hot and cold stages in the prior art has been solved, achieving more efficient and uniform temperature control and more accurate observation results.
Patent Information
- Application Number
- CN202423295268.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the existing technology, the internal structure design of the hot and cold stages is unreasonable, which leads to poor cooling or heating of the samples, affecting the accuracy and efficiency of the observation results.
By optimizing the structural layout of the hot and cold stages and adopting an internal design, including the layout of the medium flow channels and heating elements, the design of the medium flow channels and heating elements, and by optimizing the medium flow channels and heating medium flow for cooling or heating, the cooling or heating effect is ensured, thus solving the technical problems existing in the prior art.
By optimizing the layout of the medium flow channels and heating elements, a more efficient and uniform cooling or heating effect is achieved, improving the temperature control precision of the samples and the accuracy of the observation results.
Smart Images
Figure CN223683574U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of object table, in particular to a cold and hot table for object table. BACKGROUND
[0002] Freeze-drying process is often used to dry samples in biological research and drug development. Freeze-drying usually consists of three processes, namely pre-freezing, primary drying and secondary drying. The collapse temperature is a key parameter in the development process of primary drying process. After pre-freezing, the product is heated in the drying stage. When the temperature gradually rises to a critical temperature value, its rigid structure is not enough to maintain the original three-dimensional structure, resulting in the collapse of the product. This critical temperature is called collapse temperature. In the primary drying stage, the temperature of the product must be controlled below the collapse temperature of the product itself.
[0003] The collapse of the product is caused by the change of the microstructure during freeze-drying. The collapse first appears between the drying layer and the frozen layer of the product. The process of slowly heating the product under vacuum freezing conditions until collapse can be observed under a microscope, thereby determining the collapse temperature of the product, shortening the product development cycle and optimizing the freeze-drying process of the product.
[0004] When observing the collapse process of the product, the product is usually placed on an object table. The object table includes a main body, a main body position adjusting mechanism, a cold and hot table and a cold and hot table position adjusting mechanism. The main body position adjusting mechanism is used to adjust the position of the main body. The cold and hot table is arranged on the main body. The cold and hot table position adjusting mechanism is used to adjust the position of the cold and hot table on the main body. The cold and hot table is used to cool or heat the sample.
[0005] However, the cold and hot table in the prior art has some problems. The internal structure of the cold and hot table is not reasonable, which leads to the fact that the cooling or heating of the sample is not timely and the effect is poor. This design defect may affect the accuracy of the observation results, thereby affecting the judgment of the collapse temperature. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing a cold and hot table for object table to improve the cooling or heating effect of the sample.
[0007] To solve the above technical problems, the utility model provides a cold and hot table for object table.
[0008] The cold and hot table for object table of the utility model has the characteristics that it comprises a shell, a liquid inlet pipeline and a liquid outlet pipeline; a light transmission hole is arranged on the shell;
[0009] A medium flow channel is arranged in the shell, the liquid inlet of the medium flow channel is communicated with the liquid inlet pipeline, and the liquid outlet of the medium flow channel is communicated with the liquid outlet pipeline;
[0010] A heating sheet is arranged above the flow channel, and a fixed cover plate is arranged in the shell for fixing the heating sheet in the shell.
[0011] Further, an annular support table is arranged in the shell, and an arc-shaped sink is arranged in the shell, the annular support table is provided with a blocking cover plate, the inner wall surface of the arc-shaped sink and the blocking cover plate form the medium flow channel, and the heating sheet is fixed between the blocking cover plate and the fixed cover plate.
[0012] Further, an arc-shaped partition plate is arranged in the arc-shaped sink to form two adjacent arc-shaped flow channel segments.
[0013] Further, a temperature measuring hole is arranged on the shell, and the temperature measuring hole is used for accommodating a temperature measuring sensor.
[0014] Further, an isolation block is arranged between the liquid inlet of the medium flow channel and the liquid outlet of the medium flow channel, and the temperature measuring hole extends into the isolation block.
[0015] Further, the medium flow channel comprises a plurality of adjacent and communicating arc-shaped flow channel segments.
[0016] Further, the liquid inlet of each arc-shaped flow channel segment is in communication with the liquid inlet pipeline, and the liquid outlet of each arc-shaped flow channel segment is in communication with the liquid outlet pipeline.
[0017] Further, a liquid inlet hole and a liquid outlet hole are arranged on the shell, the liquid inlet pipeline is in communication with the liquid inlet of the medium flow channel through the liquid inlet hole, and the liquid outlet pipeline is in communication with the liquid outlet of the medium flow channel through the liquid outlet hole.
[0018] Further, a wire outlet hole is arranged on the shell, and the wire outlet hole is used for passing an electric wire connected with the heating sheet.
[0019] Further, the light-transmitting hole is a rounded-trapezoidal hole.
[0020] Compared with the prior art, the utility model has at least the following beneficial effects:
[0021] In use, the medium flow channel, the heating sheet and the fixed cover plate arranged in the shell realize efficient refrigeration or heating of the sample stage. The medium flow channel is in communication with the liquid inlet pipeline and the liquid outlet pipeline, so that the flow of the cooling or heating medium is ensured. The heating sheet is arranged above the flow channel and is fixed in the shell by the fixed cover plate, so that the stability and heating effect of the heating sheet are ensured. The arrangement of the medium flow channel and the heating sheet in the up-down structure can cover a larger area, thereby increasing the contact area with the shell, making the shell more easily refrigerated or heated, and improving the refrigeration or heating efficiency of the shell on the sample.
[0022] Compared with existing technologies, the technical solution of this application improves the efficiency and uniformity of cooling or heating by optimizing the structural layout within the shell, thus solving the technical problem of poor performance of the existing hot and cold stages during the cooling or heating process. Through the design of the medium flow channel and the arrangement of the heating elements, the sample can be cooled or heated more quickly and uniformly. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the hot and cold stage for the stage of this utility model.
[0024] Figure 2 for Figure 1 The stage in the middle is a cross-sectional view with the inlet and outlet pipes hidden by the hot and cold stages.
[0025] Figure 3 for Figure 1 A schematic diagram of the shell structure of the hot and cold stage used for the stage in the image;
[0026] Figure 4 for Figure 3 A schematic diagram of the structure of the stage housing for the hot and cold stages from another perspective;
[0027] Figure 5 for Figure 3 A top view of the shell of the hot and cold stage used for the stage in the diagram.
[0028] Figure 6 for Figure 1 A schematic diagram of another embodiment of the housing of the stage for use with a hot and cold stage.
[0029] Figure label:
[0030] 10. Shell; 11. Light-transmitting hole; 12. Arc-shaped settling groove; 13. Liquid inlet; 14. Liquid outlet; 15. Annular support platform; 16. Arc-shaped partition; 17. Temperature measuring hole; 18. Isolation block; 19. Liquid inlet; 20. Liquid outlet; 21. Cable outlet;
[0031] 30. Liquid inlet pipe; 40. Liquid outlet pipe; 50. Heating element; 60. Fixing cover plate; 70. Sealing cover plate. Detailed Implementation
[0032] The following description, with reference to the schematic diagrams, illustrates the preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention as described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.
[0033] The serial numbers of components used herein, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequential or technical meaning. Unless otherwise specified, the terms "connected", "coupled" in the present application include direct and indirect connections (couplings). In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0034] In the present application, unless otherwise specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0035] In the present application, unless otherwise specified and limited, the term "connection" should be understood broadly,
[0036] For example, "connection" can be fixed connection, or detachable connection, or integral; it can be directly connected, or indirectly connected through an intermediate medium. In addition, the term "electrical connection" can be direct electrical connection, or indirect electrical connection through an intermediate medium.
[0037] The present application will be described in more detail in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present application will be more apparent from the following description and claims. It should be noted that the drawings are very simplified and use non-precise proportions, only for the purpose of facilitating, clarifying and assisting the description of the embodiments of the present application.
[0038] The present application will be described in more detail in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present application will be more apparent from the following description and claims. It should be noted that the drawings are very simplified and use non-precise proportions, only for the purpose of facilitating, clarifying and assisting the description of the embodiments of the present application. Figure 1 To the drawings Figure 6 The cold and hot table for the stage of the present application is introduced.
[0039] In one embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the carrier platform of the present application uses a cold and hot platform, which comprises a shell 10, a liquid inlet pipeline 30 and a liquid outlet pipeline 40; the shell 10 is provided with a light transmission hole 11; a medium flow channel is arranged in the shell 10, the liquid inlet of the medium flow channel 13 is communicated with the liquid inlet pipeline 30, and the liquid outlet of the medium flow channel 14 is communicated with the liquid outlet pipeline 40; a heating sheet 50 and a fixed cover plate 60 are further arranged in the shell 10, the heating sheet 50 is located above the flow channel, and the fixed cover plate 60 is used to fix the heating sheet 50 in the shell 10, wherein the fixed cover plate 60 can be fixedly connected with the shell 10 by glue.
[0040] In use, the efficient refrigeration or heating of the carrier platform is realized by the arrangement of the medium flow channel, the heating sheet 50 and the fixed cover plate 60 in the shell 10. The medium flow channel ensures the flow of the cooling or heating medium through the communication of the liquid inlet pipeline 30 and the liquid outlet pipeline 40. The heating sheet 50 is located above the flow channel and is fixed in the shell 10 by the fixed cover plate 60, which ensures the stability and heating effect of the heating sheet 50. The arrangement of the medium flow channel and the heating sheet 50 in an up-down structure can cover a larger area, thereby increasing the contact area with the shell 10, making the shell 10 more easily refrigerated or heated, and thus improving the refrigeration or heating efficiency of the shell 10 on the sample. The medium can be a refrigeration medium such as liquid nitrogen, and of course can also be a heating medium such as hot water.
[0041] Compared with the prior art, the technical scheme of the present application optimizes the structural layout in the shell 10, improves the efficiency and uniformity of refrigeration or heating, and solves the technical problem of poor effect of the cold and hot platform in the refrigeration or heating process in the prior art. Through the design of the medium flow channel and the arrangement of the heating sheet 50, the sample can be more quickly and uniformly refrigerated or heated.
[0042] Further, in one of the embodiments, as shown in Figure 3 and Figure 5 As shown, the shell 10 is provided with an annular support platform 15 and an arc-shaped sink 12, the annular support platform 15 is provided with a plugging cover plate 70, the inner wall surface of the arc-shaped sink 12 and the plugging cover plate 70 enclose the medium flow channel, and the heating sheet 50 is fixed between the plugging cover plate 70 and the fixed cover plate 60.
[0043] The design of the annular support platform 15 enables the medium flow channel to be more reasonably arranged in the shell 10, the plugging cover plate 70 and the inner wall surface of the arc-shaped sink 12 jointly enclose the medium flow channel, which ensures the sealing and stability of the flow channel. The heating sheet 50 is fixed between the plugging cover plate 70 and the fixed cover plate 60, which not only improves the fixing effect of the heating sheet 50, but also enables the heating sheet 50 to more uniformly heat the shell 10, thereby improving the heating efficiency of the cold and hot platform. In this embodiment, only one arc-shaped sink 12 is provided, thereby only one medium flow channel is formed.
[0044] Specifically, the annular support platform 15 can be designed as a circular ring near the inner side wall of the shell 10 to increase the support area and stability. The inner wall surface of the arc-shaped sink 12 can be designed as a smooth surface to reduce the resistance when the medium flows. The blocking cover plate 70 can be made of a high-temperature-resistant and heat-conducting material, such as copper, stainless steel, or aluminum alloy, to ensure that it still has good sealing and heat conduction performance in a high-temperature environment. In addition, the shell 10 and the fixed cover plate 60 are also made of a high-temperature-resistant and heat-conducting material, such as copper, stainless steel, or aluminum alloy.
[0045] Further, in one of the embodiments, as shown in FIG. 6, an arc-shaped partition plate 16 is arranged in the arc-shaped sink 12 to form two adjacent arc-shaped flow channel sections. It should be noted that when multiple arc-shaped flow channel sections are arranged, the thickness of the annular support platform 15 can be reduced to increase the proportion of the cross section of the arc-shaped flow channel section in the shell 10. Figure 6
[0046] Among them, the arrangement of the arc-shaped partition plate 16 can be realized in various ways, for example, the arc-shaped partition plate 16 can be integrally formed with the inner wall surface of the arc-shaped sink 12, or it can be fixed in the arc-shaped sink 12 by welding or other methods. The shape of the arc-shaped partition plate 16 can be similar to the arc-shaped inner wall surface of the arc-shaped sink 12, and the specific shape can be adjusted according to actual needs. In addition, the thickness and material of the arc-shaped partition plate 16 can also be selected according to the needs of medium flow to ensure that the flow path of the medium in the flow channel is more complex, and the contact time and contact area between the medium and the heating sheet 50 are increased.
[0047] Specifically, by arranging the arc-shaped partition plate 16 in the arc-shaped sink 12, the single arc-shaped sink 12 is divided into two adjacent arc-shaped flow channel sections, which increases the surface area of the medium flow channel and improves the heat exchange efficiency. The arrangement of the arc-shaped partition plate 16 makes the flow path of the medium in the flow channel more complex, increases the contact time and contact area between the medium and the heating sheet 50, and thus improves the heat exchange effect. The technical solution of the present application significantly improves the heat exchange efficiency by optimizing the flow channel structure, so that the cold and hot platform can more efficiently control the temperature in actual application.
[0048] Further, in one of the embodiments, a temperature measuring hole 17 is arranged on the shell 10, and the temperature measuring hole 17 is used to accommodate a temperature measuring sensor.
[0049] Specifically, the design of the temperature measuring hole 17 enables the temperature measuring sensor to accurately measure the temperature of the shell 10, especially in the key area between the liquid inlet 13 and the liquid outlet 14.
[0050] As a preferred embodiment, the temperature measuring hole 17 can be designed as a cylindrical or conical shape to adapt to different types of temperature measuring sensors.
[0051] Further, in one of the embodiments, a partition block 18 is arranged between the liquid inlet 13 and the liquid outlet 14 of the medium flow channel, and the temperature measuring hole 17 extends into the partition block 18.
[0052] The specific implementation of the partition block 18 can include but is not limited to the following: the partition block 18 can be integrally formed with the shell 10, for example, by machining a large-arc-shaped recess 12 with a central angle of 340° on the bottom surface of the shell 10, and then the part between the two ends of the arc-shaped recess 12 on the bottom surface of the shell 10 which is not machined forms the partition block 18. In addition, it can also be a separate component arranged in the circular recess and fixed in the circular recess by welding. The shape of the partition block 18 can be rectangular, circular or other geometric shapes, and the specific shape can be optimized according to the layout of the medium flow channel and the position of the temperature measuring hole 17.
[0053] Specifically, the presence of the partition block 18 not only isolates the liquid inlet 13 and the liquid outlet 14 of the medium flow channel, but also ensures that the temperature measuring hole 17 avoids the medium flow channel and can extend into the shell 10 for a longer distance, thereby more accurately obtaining the temperature of the shell 10, and also enables the temperature measuring sensor to be placed more stably in the temperature measuring hole 17, avoiding errors in the temperature measurement process, and enabling the temperature measuring sensor to more accurately measure the temperature in the medium flow channel.
[0054] As a preferred embodiment, the material of the partition block 18 can be selected from metals with good thermal conductivity, such as copper, stainless steel or aluminum alloy, to further improve the accuracy of temperature measurement.
[0055] Further, in one of the embodiments, the medium flow channel includes a plurality of adjacent and connected arc-shaped flow channel segments, such as two, three or four.
[0056] Specifically, the arc-shaped flow channel segments can be realized by arranging arc-shaped recesses 12 in the shell 10 and arranging a plurality of arc-shaped partitions 16 in the arc-shaped recesses 12. This structure design enables the liquid inlet 13 of each arc-shaped flow channel segment to be in communication with the liquid inlet pipe 30, and the liquid outlet 14 of each arc-shaped flow channel segment to be in communication with the liquid outlet pipe 40. As a preferred embodiment, the number of arc-shaped flow channel segments can be adjusted according to actual needs to adapt to different fluid flow requirements.
[0057] Further, in one of the embodiments, the shell 10 is provided with a liquid inlet hole 19 and a liquid outlet hole 20, and the liquid inlet pipe 30 is in communication with the liquid inlet 13 of the medium flow channel through the liquid inlet hole 19, and the liquid outlet pipe 40 is in communication with the liquid outlet 14 of the medium flow channel through the liquid outlet hole 20.
[0058] Specifically, the design of the liquid inlet hole 19 and the liquid outlet hole 20 provides a direct inlet and outlet for the medium fluid, allowing the liquid inlet pipe 30 and the liquid outlet pipe 40 to be directly connected to the liquid inlet port 13 and the liquid outlet port 14 of the medium flow channel. This design ensures that the medium can flow quickly and efficiently in the flow channel, thereby improving the cooling or heating efficiency of the cold and hot stage on the sample. As a preferred embodiment, the liquid inlet hole 19 and the liquid outlet hole 20 can be arranged at different positions of the shell 10 to facilitate uniform distribution and flow of the medium.
[0059] Further, in one of the embodiments, the shell 10 is provided with a wire outlet hole 21 for the electric wire connected to the heating sheet 50 to pass through.
[0060] Specifically, the design of the wire outlet hole 21 can take various forms. For example, the wire outlet hole 21 can be arranged on the side of the shell 10, and the size of the wire outlet hole 21 can be adjusted according to the diameter of the electric wire to ensure that the electric wire can pass through smoothly, while avoiding excessive hole size affecting the structural strength of the shell 10. In addition, the inner wall of the wire outlet hole 21 can be provided with insulating material to prevent direct contact between the electric wire and the shell 10, thereby reducing the risk of electrical failure. As a preferred embodiment, the wire outlet hole 21 can be designed with a sealing ring structure to further improve the sealing and safety of the device.
[0061] Further, in one of the embodiments, the light transmission hole 11 is a rounded truncated cone hole.
[0062] Specifically, the top diameter of the rounded truncated cone hole is smaller, and the bottom diameter is larger, forming a gradually expanding opening structure. For example, the top diameter of the inverted cone hole can be designed to be 1-3 mm, the bottom diameter can be designed to be 3-5 mm, and the hole depth can be designed to be 2-4 mm. As a preferred embodiment, the side wall of the inverted cone hole can be designed as a smooth slope to ensure uniform refraction and reflection of light.
[0063] The design of the light transmission hole 11 as a rounded truncated cone hole significantly improves the clarity and accuracy of optical observation by increasing the range of incident angles of light. Specifically, the shape of the inverted cone hole allows light to enter the hole at a larger angle, thereby reducing light scattering and loss and improving observation accuracy.
[0064] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A cold and hot stage for a stage, characterized by, The shell (10) is provided with a light-transmitting hole (11), an inlet pipe (30) and an outlet pipe (40). The shell (10) is provided with a medium flow channel, the inlet (13) of the medium flow channel is communicated with the inlet pipe (30), and the outlet (14) of the medium flow channel is communicated with the outlet pipe (40). The shell (10) is further provided with a heating sheet (50) and a fixed cover plate (60), the heating sheet (50) is located above the flow channel, and the fixed cover plate (60) is used for fixing the heating sheet (50) in the shell (10).
2. The cold and hot stage for object table according to claim 1, characterized in that, The shell (10) is provided with an annular support table (15) and an arc-shaped sink (12), the annular support table (15) is provided with a blocking cover plate (70), the inner wall surface of the arc-shaped sink (12) and the blocking cover plate (70) form the medium flow channel, and the heating sheet (50) is fixed between the blocking cover plate (70) and the fixed cover plate (60).
3. The cold and hot stage for object table according to claim 2, characterized in that, The arc-shaped sink (12) is provided with an arc-shaped partition plate (16) to form two adjacent arc-shaped flow channel sections.
4. The cold and hot stage for object table according to claim 1, wherein, The shell (10) is provided with a temperature measuring hole (17) for accommodating a temperature measuring sensor.
5. The cold and hot stage for object table according to claim 4, characterized in that, The temperature measuring hole (17) extends into the isolation block (18) between the inlet (13) of the medium flow channel and the outlet (14) of the medium flow channel.
6. The cold and hot stage for object table according to claim 1, wherein, The medium flow channel comprises a plurality of adjacent and communicated arc-shaped flow channel sections.
7. The cold and hot stage for object table according to claim 6, characterized in that, The inlet (13) of each arc-shaped flow channel section is communicated with the inlet pipe (30), and the outlet (14) of each arc-shaped flow channel section is communicated with the outlet pipe (40).
8. The cold and hot stage for object table according to claim 1, wherein, The shell (10) is provided with an inlet hole (19) and an outlet hole (20), the inlet pipe (30) is communicated with the inlet (13) of the medium flow channel through the inlet hole (19), and the outlet pipe (40) is communicated with the outlet (14) of the medium flow channel through the outlet hole (20).
9. The cold and hot stage for object table according to claim 1, wherein, The shell (10) is provided with a wire outlet hole (21) for passing through the electric wire connected with the heating sheet (50).
10. The cold and hot stage for object table according to claim 1, wherein, The light-transmitting hole (11) is a reverse-circular-truncated-cone-shaped hole.