Cooling and heating table

Abstract

The utility model relates to the technical field of objective tables, in particular to a cooling and heating table. The cooling and heating table comprises a shell, a liquid inlet pipeline, a liquid outlet pipeline, a heating piece and a fixing block. A mounting sinking groove is formed in the shell; a medium runner is arranged in the shell, the medium runner is distributed on the outer side of the mounting sinking groove in the circumferential direction, a liquid inlet of the medium runner communicates with the liquid inlet pipeline, and a liquid outlet of the medium runner communicates with the liquid outlet pipeline; a first light-transmitting hole is formed in the groove bottom of the mounting sinking groove, and a second light-transmitting hole communicating with the first light-transmitting hole is formed in the fixing block. In the using process, the medium flow channels are distributed on the outer side of the installation sinking groove in the circumferential direction, then the medium flow channels and the heating pieces are arranged at intervals in the inner-outer direction, the thickness size of the shell is reduced, the contact area between a medium and the shell can be increased due to the fact that the medium flow channels are distributed in the circumferential direction, and circular flowing of the medium is achieved through the liquid inlet pipeline and the liquid outlet pipeline; and the refrigerating or heating efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of object table, in particular to a cold and hot 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.

[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] The internal structure of the cold and hot table in the prior art is not reasonable, which leads to the fact that the cooling or heating of the sample is not timely and the effect is poor. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a cold and hot 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.

[0008] The cold and hot table of the utility model, including casing, liquid inlet pipeline, liquid outlet pipeline, heating sheet and fixed block,

[0009] The fixed block is used for fixing the heating sheet in the installation groove,

[0010] The casing is provided with a medium flow channel, the medium flow channel is distributed on the outer side of the installation groove in the circumferential direction, and 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.

[0011] The bottom of the installation groove is provided with a first light-transmitting hole, and the fixing block is provided with a second light-transmitting hole in communication with the first light-transmitting hole.

[0012] Further, an arc-shaped groove is arranged on the end face of the shell, and a blocking cover plate is arranged on the arc-shaped groove, and the inner wall surface of the arc-shaped groove and the blocking cover plate enclose the medium flow channel.

[0013] Further, a support step surface extending along the circumference of the arc-shaped groove is further arranged on the end face of the shell, and the support step surface is used for supporting the blocking cover plate.

[0014] Further, a support boss and an annular fixing surface surrounding the support boss are arranged on the middle part of the fixing block, the annular fixing surface is used for pressing the heating sheet, and the support boss is used for pressing the bottom of the installation groove.

[0015] Further, an avoiding gap for avoiding the electric wire connected with the heating sheet is arranged on the annular fixing surface, an outlet hole is arranged on the shell, and the avoiding gap is adjacent to the outlet hole.

[0016] Further, a separation block is arranged between the liquid inlet of the medium flow channel and the liquid outlet of the medium flow channel, the outlet hole penetrates through the separation block and is in communication with the installation groove.

[0017] Further, a temperature measuring hole is arranged on the shell, and the temperature measuring hole is used for accommodating a temperature measuring sensor.

[0018] 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.

[0019] Further, the first light-transmitting hole is a rounded trapezoidal hole.

[0020] Further, the first light-transmitting hole and the second light-transmitting hole are both rounded trapezoidal holes, the inclination angles of the generatrixes of the two holes are the same, the maximum cross section of the first light-transmitting hole is the same as the minimum cross section of the second light-transmitting hole and is fitted with the minimum cross section.

[0021] Compared with the prior art, the utility model has at least the following beneficial effects:

[0022] In use, the design of the mounting groove enables the heating sheet to be stably fixed in the shell, avoiding displacement of the heating sheet during refrigeration or heating, thereby improving the heating effect. The medium flow channel is distributed circumferentially on the outer side of the mounting groove, and the medium flow channel and the heating sheet are arranged in the inner-outer direction, thereby reducing the thickness dimension of the shell. The circumferential distribution of the medium flow channel can increase the contact area of the medium with the shell, and the circulation flow of the medium is realized through the liquid inlet pipeline and the liquid outlet pipeline, thereby improving the refrigeration or heating efficiency. The design of the first light transmission hole and the second light transmission hole not only facilitates observation and detection, but also ensures the light transmission effect, thereby improving the use performance of the cold and hot table. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structural schematic view of an embodiment of the cold and hot table of the present application;

[0024] Figure 2 FIG. 2 is a sectional view of the cold and hot table in FIG. 1 after the liquid inlet pipeline and the liquid outlet pipeline are hidden; Figure 1

[0025] Figure 3 FIG. 3 is a structural schematic view of the shell of the cold and hot table in FIG. 1; Figure 1

[0026] Figure 4 FIG. 4 is a structural schematic view of the fixing block of the cold and hot table in FIG. 1; Figure 1

[0027] Figure 5 FIG. 5 is a structural schematic view of another perspective view of the fixing block of the cold and hot table in FIG. 1. Figure 4 REFERENCE SIGNS:

[0028] 10, shell; 11, mounting groove; 12, arc-shaped groove; 13, liquid inlet; 14, liquid outlet; 15, first light transmission hole; 16, wire outlet hole; 17, isolation block; 18, temperature measurement hole; 19, liquid inlet hole; 20, liquid outlet hole;

[0029] 30, fixing block; 31, second light transmission hole; 32, support boss; 33, annular fixing surface; 34, avoiding gap;

[0030] 40, liquid inlet pipeline; 50, liquid outlet pipeline; 60, heating sheet; 70, plugging cover plate.

[0031] DETAILED DESCRIPTION

[0032] ​​​​The cold and hot table of the present application will be described below with reference to the accompanying drawings, in which the preferred embodiments of the present application are shown, it should be understood that those skilled in the art can modify the present application described herein while still achieving the advantageous effects of the present application. Therefore, the following description should be understood as a broad knowledge for those skilled in the art, rather than as a limitation of the present application.

[0033] The numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and have no any order or technical meaning. And the "connection" and "coupling" in this application, unless otherwise specified, include direct and indirect connection (coupling). In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is 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 a limitation of 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 this 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 according to the following description and claims. It should be noted that the drawings are very simplified and use non-precise proportions, only to facilitate, clarify and assist the purpose of describing the embodiments of the present application.

[0038] The following will be described in conjunction with the drawingsFigure 1 To the attached Figure 5 As shown in the cold and hot table of the utility model is introduced.

[0039] In one embodiment, as shown in Figure 1 , Figure 2 and Figure 3 The cold and hot table includes a housing 10, a liquid inlet pipe 40, a liquid outlet pipe 50, a heating sheet 60 and a fixing block 30. The housing 10 is provided with a mounting groove 11, and the fixing block 30 is used to fix the heating sheet 60 in the mounting groove 11. The housing 10 is provided with a medium flow channel, which is distributed on the outer side of the mounting groove 11 in the circumferential direction, and the liquid inlet 13 of the medium flow channel is communicated with the liquid inlet pipe 40, and the liquid outlet 14 of the medium flow channel is communicated with the liquid outlet pipe 50. The groove bottom of the mounting groove 11 is provided with a first light transmission hole 15, and the fixing block 30 is provided with a second light transmission hole 31 communicated with the first light transmission hole 15.

[0040] The design of the mounting groove 11 enables the heating sheet 60 to be stably fixed in the housing 10, avoiding displacement of the heating sheet 60 during refrigeration or heating, thereby improving the heating effect. The medium flow channel is distributed on the outer side of the mounting groove 11 in the circumferential direction, thereby spacing the medium flow channel and the heating sheet 60 in the inside-outside direction, thereby reducing the thickness dimension of the housing 10. The circumferential distribution of the medium flow channel can increase the contact area between the medium and the housing 10, and the circulation flow of the medium is realized through the liquid inlet pipe 40 and the liquid outlet pipe 50, thereby improving the refrigeration or heating efficiency. The design of the first light transmission hole 15 and the second light transmission hole 31 not only facilitates observation and detection, but also ensures the light transmission effect, thereby improving the use performance of the cold and hot table. 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] Further, in one embodiment, an arc-shaped groove 12 is provided on the end face of the housing 10, and a plugging cover plate 70 is provided on the arc-shaped groove 12, and the inner wall surface of the arc-shaped groove 12 and the plugging cover plate 70 form a medium flow channel.

[0042] Specifically, the design of the arc-shaped groove 12 enables the medium flow channel to be better distributed on the end face of the housing 10, thereby optimizing the structure of the medium flow channel. The cooperation of the arc-shaped groove 12 and the plugging cover plate 70 forms a closed medium flow channel, which ensures that the flow of the medium in the flow channel is more uniform and efficient. For example, the arc-shaped groove 12 can be an arc with a central angle close to 360°, and the plugging cover plate 70 can be fixed on the arc-shaped groove 12 by adhesive. As a preferred embodiment, the inner surface of the plugging cover plate 70 can be provided with a flow guide groove to further optimize the flow path of the medium.

[0043] The arc-shaped sink 12 and the blocking cover plate 70 are arranged to better distribute the medium flow channel on the end face of the shell 10, thereby optimizing the structure of the medium flow channel. The cooperation of the arc-shaped sink 12 and the blocking cover plate 70 forms a closed medium flow channel, ensuring that the medium flows more uniformly and efficiently in the flow channel, thereby improving the refrigeration or heating effect of the cold and hot platform. This structural design not only simplifies the layout of the medium flow channel, but also enhances the sealing of the flow channel, reducing the possibility of medium leakage, thereby improving the overall performance of the cold and hot platform.

[0044] Further, in one of the embodiments, a support step surface extending along the circumference of the arc-shaped sink 12 is arranged on the end face of the shell 10, which is used to support the blocking cover plate 70.

[0045] Specifically, the support step surface can be implemented in various ways. For example, the support step surface can be designed as a continuous annular structure, completely surrounding the circumference of the arc-shaped sink 12, thereby providing uniform support for the blocking cover plate 70. In addition, the height and width of the support step surface can be adjusted according to the size and weight of the blocking cover plate 70 to ensure that it can effectively support the blocking cover plate 70 and prevent it from loosening or falling off during installation or use.

[0046] Further, in one of the embodiments, as shown in Figure 4 and Figure 5 , a support boss 32 and an annular fixing surface 33 surrounding the support boss 32 are arranged on the middle part of the fixing block 30, the arc-shaped fixing surface is used to press the heating sheet 60, and the support boss 32 is used to press on the bottom of the installation sink 11.

[0047] Specifically, the design of the support boss 32 can be implemented in various ways. For example, the support boss 32 can be cylindrical, square or other geometric shapes, and its height and diameter can be adjusted according to the shape, thickness of the heating sheet 60 and the depth of the installation sink 11. The annular fixing surface 33 can be a continuous annular structure or a segmented annular structure to ensure uniform stress of the heating sheet 60 in the installation sink 11. In addition, the surface of the annular fixing surface 33 can be provided with anti-slip texture or coating to increase the friction between the heating sheet 60, further improving the fixing effect.

[0048] As a preferred embodiment, the support boss 32 and the annular fixing surface 33 can be integrally formed, and the precision machining ensures the accuracy of the size and shape. The inner side of the annular fixing surface 33 can be provided with a guide groove to facilitate the installation and positioning of the heating sheet 60.

[0049] Further, in one of the embodiments, as shown in Figure 4 and Figure 5As shown, the annular fixing surface 33 is provided with an avoidance gap 34 for avoiding the electric wire connected with the heating sheet 60, and the shell 10 is provided with a wire outlet hole 16, and the avoidance gap 34 is adjacent to the wire outlet hole 16.

[0050] The avoidance gap 34 can be formed by machining a groove or gap on the annular fixing surface 33, so as to ensure that the electric wire is not squeezed or damaged during the fixing process. The wire outlet hole 16 can be designed by opening a hole on the shell 10, so as to ensure that the electric wire can be smoothly led out of the shell 10, and the electric wire is prevented from being hindered during the leading-out process. The adjacent arrangement of the avoidance gap 34 and the wire outlet hole 16 can be realized by reasonable layout, so as to ensure the smoothness and safety of the electric wire when connecting the heating sheet 60.

[0051] Specifically, the avoidance gap 34 can be designed as U-shaped or V-shaped to better adapt to the direction and fixing requirement of the electric wire. The wire outlet hole 16 can be designed as circular or elliptical to ensure that the electric wire can pass through smoothly. The adjacent arrangement of the avoidance gap 34 and the wire outlet hole 16 can be realized by precise size matching between the annular fixing surface 33 and the shell 10, so as to minimize the gap therebetween, thereby preventing the electric wire from being hindered during the leading-out process.

[0052] The wire outlet hole 16 is located on the shell 10 and adjacent to the avoidance gap 34, so as to ensure that the electric wire can be smoothly led out of the shell 10, and the electric wire is prevented from being hindered during the leading-out process. These two technical features cooperate with each other to ensure the smoothness and safety of the electric wire when connecting the heating sheet 60, thereby improving the reliability and service life of the cold and hot table.

[0053] Further, in one of the embodiments, a separation block 17 is arranged between the liquid inlet 13 of the medium flow channel and the liquid outlet 14 of the medium flow channel, and the wire outlet hole 16 penetrates through the separation block 17 and communicates with the mounting groove 11.

[0054] The specific shape of the separation block 17 can be rectangular, trapezoidal or other suitable shapes, and the height and width thereof can be adjusted according to actual requirements to ensure that the medium flow between the liquid inlet 13 and the liquid outlet 14 can be effectively isolated. The material of the separation block 17 can be selected as the same material as the shell 10, so as to ensure the connection strength and sealing performance of the separation block 17 and the shell 10. The position of the wire outlet hole 16 can be optimized according to the leading-out path of the electric wire, so as to ensure that the electric wire can be smoothly led out and does not interfere with the medium flow channel.

[0055] The specific implementation of the isolation block 17 can include but is not limited to the following: the isolation block 17 can be integrally formed with the shell 10, for example, by machining a large-arc-shaped arc-shaped groove 12 with a central angle of 340° on the shell 10, and then the part between the two ends of the arc-shaped groove 12 on the bottom surface of the shell 10 which is not machined forms the isolation block 17. In addition, it can also be a separate component arranged in the circular groove and fixed in the circular groove by welding. The shape of the isolation block 17 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 outlet hole 16.

[0056] Further, in one of the embodiments, the shell 10 is provided with a temperature measuring hole 18 for accommodating a temperature measuring sensor.

[0057] The design of the temperature measuring hole 18 allows the temperature measuring sensor to be accurately installed in the shell 10, so as to realize real-time monitoring and adjustment of the temperature of the cold and hot table. Specifically, the temperature measuring hole 18 can be arranged at different positions of the shell 10, such as near the heating sheet 60 or the medium flow channel, to ensure the accuracy and timeliness of temperature measurement. As a preferred embodiment, the temperature measuring hole 18 can be designed to have a specific shape and size to accommodate different types of temperature measuring sensors and ensure that they are securely fixed in the shell 10.

[0058] Further, in one of the embodiments, the shell 10 is provided with a liquid inlet hole 19 and a liquid outlet hole 20, the liquid inlet pipe 40 communicates with the liquid inlet 13 of the medium flow channel through the liquid inlet hole 19, and the liquid outlet pipe 50 communicates with the liquid outlet 14 of the medium flow channel through the liquid outlet hole 20.

[0059] Among them, the liquid inlet hole 19 and the liquid outlet hole 20 can be realized in various ways. For example, the liquid inlet hole 19 and the liquid outlet hole 20 can be arranged on the side surface of the shell 10 to facilitate the connection of the liquid inlet pipe 40 and the liquid outlet pipe 50.

[0060] In addition, the connection mode of the liquid inlet hole 19 and the liquid outlet hole 20 can also have many choices. For example, the liquid inlet pipe 40 and the liquid outlet pipe 50 can be connected with the liquid inlet hole 19 and the liquid outlet hole 20 through threaded connection, flange connection or quick connector. Specifically, threaded connection can provide higher sealing and stability, while quick connector can facilitate the disassembly and replacement of the pipe. As a preferred embodiment, a sealing ring can be arranged at the connection of the liquid inlet hole 19 and the liquid outlet hole 20 to prevent fluid leakage.

[0061] Further, in one embodiment, the first light-transmitting hole 15 is a rounded-trapezoidal hole. The design of the rounded-trapezoidal hole can better guide the light transmission, reduce the scattering and loss of light, and thus improve the efficiency and accuracy of the optical system. This design not only improves the optical performance, but also enhances the stability and durability of the structure.

[0062] The shape of the rounded-trapezoidal hole can be achieved in various ways. For example, the rounded-trapezoidal hole can be formed on the bottom of the mounting groove 11 by mechanical processing or laser cutting technology. In addition, the inclination angle of the generatrix of the rounded-trapezoidal hole can be adjusted according to specific optical requirements to optimize the light transmission effect.

[0063] As a preferred embodiment, the first light-transmitting hole 15 and the second light-transmitting hole 31 are both rounded-trapezoidal holes, and the inclination angles of the generatrix of the two holes are the same. The maximum cross-section of the first light-transmitting hole 15 is the same as and fits the minimum cross-section of the second light-transmitting hole 31, which can further ensure smooth light transmission.

[0064] Specifically, the same inclination angle of the generatrix ensures the consistency of the transmission path of the light when passing through the two light-transmitting holes, further improving the light transmission efficiency. The maximum cross-section of the first light-transmitting hole 15 is the same as and fits the minimum cross-section of the second light-transmitting hole 31, which not only ensures the continuity of light transmission, but also enhances the stability and reliability of the structure.

[0065] As a preferred embodiment, the inclination angle of the generatrix of the rounded-trapezoidal hole can be adjusted according to actual requirements to optimize the light transmission effect.

[0066] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for part or all of the technical features. These modifications or substitutions do not change the essence of the corresponding technical solutions, which are still within the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hot top table, characterized in that, The shell (10), the liquid inlet pipeline (40), the liquid outlet pipeline (50), the heating sheet (60) and the fixing block (30) are included. The shell (10) is provided with a mounting groove (11), and the fixing block (30) is used for fixing the heating sheet (60) in the mounting groove (11). The shell (10) is provided with a medium flow channel, the medium flow channel is distributed on the outer side of the mounting groove (11) in the circumferential direction, the liquid inlet (13) of the medium flow channel is communicated with the liquid inlet pipeline (40), and the liquid outlet (14) of the medium flow channel is communicated with the liquid outlet pipeline (50). The groove bottom of the mounting groove (11) is provided with a first light-transmitting hole (15), and the fixing block (30) is provided with a second light-transmitting hole (31) communicated with the first light-transmitting hole (15).

2. The hot top of claim 1 wherein, The end surface of the shell (10) is provided with an arc-shaped groove (12), the arc-shaped groove (12) is provided with a blocking cover plate (70), and the inner wall surface of the arc-shaped groove (12) and the blocking cover plate (70) surround the medium flow channel.

3. The hot top table according to claim 2, wherein The end surface of the shell (10) is further provided with a support step surface extending along the circumferential direction of the arc-shaped groove (12), and the support step surface is used for supporting the blocking cover plate (70).

4. The hot top of claim 2 wherein, The middle part of the fixing block (30) is provided with a support boss (32) and an annular fixing surface (33) arranged around the support boss (32), the arc-shaped fixing surface is used for pressing the heating sheet (60), and the support boss (32) is used for pressing the bottom of the mounting groove (11).

5. The hot top table of claim 4 wherein, The annular fixing surface (33) is provided with an avoiding gap (34) for avoiding the electric wire connected with the heating sheet (60), the shell (10) is provided with a wire outlet hole (16), and the avoiding gap (34) is adjacent to the wire outlet hole (16).

6. The hot top table of claim 5, wherein, The liquid inlet (13) of the medium flow channel and the liquid outlet (14) of the medium flow channel are provided with a separation block (17), the wire outlet hole (16) penetrates through the separation block (17) and is communicated with the mounting groove (11).

7. The hot top table of claim 1 wherein, The shell (10) is provided with a temperature measuring hole (18) for accommodating a temperature measuring sensor.

8. The hot top table of claim 1 wherein, The shell (10) is provided with a liquid inlet hole (19) and a liquid outlet hole (20), the liquid inlet pipeline (40) is communicated with the liquid inlet (13) of the medium flow channel through the liquid inlet hole (19), and the liquid outlet pipeline (50) is communicated with the liquid outlet (14) of the medium flow channel through the liquid outlet hole (20).

9. The hot top table of claim 1 wherein, The first light-transmitting hole (15) is a rounded truncated cone hole.

10. The hot top table of claim 9, wherein, The first light-transmitting hole (15) and the second light-transmitting hole (31) are both rounded truncated cone holes, the inclination angles of generatrixes of the two holes are the same, the maximum cross section of the first light-transmitting hole (15) is the same as the minimum cross section of the second light-transmitting hole (31), and the two cross sections are fitted.

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