Temperature control structure for transferring heat to incubation turntable through air

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By installing a heating disk above the incubation disk with an area larger than the incubation disk and heating it with air conduction heat, the problem of difficulty in achieving efficient temperature control heating in the prior art is solved, and efficient and balanced temperature control of the incubation disk is achieved.

CN119717943APending Publication Date: 2025-03-28NANJING CHANGJIAN BIOLOGICAL TECH CO LTD

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Patent Information

Application Number: CN202411886339.6
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-12-20
Publication Date: 2025-03-28

AI Technical Summary

Technical Problem

The prior art is difficult to achieve efficient temperature-controlled heating on rotating incubation discs, especially in the conditions of tight space, and it is impossible to effectively fix the heating module and the temperature measurement module.

Method used

Heat by installing a heating plate above the incubation disc with an area larger than the incubation disc and using air-conducting heat. A temperature sensor is installed on the surface of the heating plate and is electrically connected to the control system. It is automatically controlled through the heating belt to ensure temperature equality.

Benefits of technology

Efficient temperature-controlled heating of the incubated disc is achieved, which reduces heat loss, ensures temperature equality, and simplifies structural design, avoiding complex wrapping of the entire incubated disc.

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Abstract

The invention discloses a temperature control structure for transferring heat to an incubation turntable through air, which is characterized by comprising a heating disc and an incubation disc, a temperature sensor is arranged on the heating disc, the area of the heating disc is larger than that of the incubation disc, the heating disc is arranged above the incubation disc, the temperature sensor is arranged on the incubation disc, and the temperature sensor is arranged on the incubation disc. And a heating belt is arranged on the heating disc and is connected with a temperature sensor and a control system. According to the heating plate, the rotating incubation plate structure can be subjected to temperature control heating, a particularly complex circuit is not needed, the heating belt and the temperature sensor are fixed to the heating plate, the whole incubation plate does not need to be wrapped in a limited interval, and the complexity of structural design is reduced.

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Description

Technical Field

[0001] The invention relates to the technical field of temperature control, in particular to a temperature control structure for conducting heat to an incubation turntable through air. Background Art

[0002] For temperature control and heating of equipment instruments, the heating module and temperature measurement module are usually fixed to the position requiring heating, and are wrapped with thermal insulation materials to increase the accuracy of temperature control. However, for the structure of the rotating incubation disc, the heating module and the temperature measurement module cannot be fixed on it, and the thermal insulation material cannot be completely wrapped because the space of the incubation disc is relatively tight.

[0003] Therefore, it is necessary to provide a temperature control structure that conducts heat to the incubation turntable through air to solve the above technical problems. In order to ensure the uniformity of the surface temperature of the incubation turntable, a heating plate is added above the incubation turntable, and heat is conducted through the air between the incubation turntable and the heating plate. Through a certain algorithm, the heat loss caused by air conduction is compensated to achieve the required temperature. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a temperature control structure that conducts heat to an incubation turntable through air, comprising a heating disk and an incubation disk, characterized in that: a temperature sensor is installed on the surface of the heating disk, the area of the heating disk is larger than that of the incubation disk, the heating disk is installed above the incubation disk, a temperature sensor is installed on the surface of the incubation disk, the temperature sensor is electrically connected to a control system, a heating belt is provided at the rotation circumference of the heating disk, and the heating belt is connected to the temperature sensor and the control system.

[0006] As a preferred solution of the temperature control method of transferring heat to the incubation turntable through air according to the present invention, the heating plate is made of aluminum material.

[0007] As a preferred solution of the temperature control method of the present invention for transferring heat to the incubation turntable through air, protrusions are provided on the rotating circumference of the heating turntable.

[0008] As a preferred solution of the temperature control method of transferring heat to the incubation turntable through air according to the present invention, the protruding portion of the heating disc covers the surface of the incubation disc.

[0009] As a preferred solution of the temperature control method of transferring heat to the incubation turntable through air according to the present invention, the heating tray is wrapped with a heat-insulating material.

[0010] As a preferred solution of the temperature control method of the present invention for transferring heat to the incubation turntable through air, a plurality of temperature sensors are installed.

[0011] As a preferred solution of the temperature control method of the present invention for transferring heat to the incubation turntable through air, the distances from the plurality of temperature sensors to the center of the incubation turntable are not equal.

[0012] The beneficial effects of the present invention are as follows: by selecting aluminum, a material with relatively good thermal conductivity, to make the heating plate, and wrapping a layer of thermal insulation material on the surface of the heating plate, heat loss can be reduced; because the area of the heating plate is larger than that of the incubation plate, and the peripheral edge is protruded, the temperature balance in the plate is ensured by the heating plate; the heating plate can control the temperature and heat the rotating incubation plate structure, and does not require a particularly complex circuit. The heating belt and the temperature sensor are fixed to the heating plate, and within a limited range, there is no need to wrap the entire incubation plate, thereby reducing the complexity of the structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0014] in:

[0015] Figure 1 A schematic diagram of the overall structure of a temperature control structure for transferring heat to an incubation turntable through air according to an embodiment of the present invention;

[0016] Figure 2 An exploded schematic diagram of a temperature control structure for conducting heat to an incubation turntable through air according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0020] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Example 1

[0022] Reference Figure 1-2 The first embodiment of the present invention is a temperature control structure that conducts heat to an incubation turntable through air, characterized in that it includes a heating disk 101 and an incubation disk 102, a temperature sensor is installed on the surface of the heating disk 101, the area of the heating disk 101 is larger than that of the incubation disk 102, the heating disk 101 is installed above the incubation disk 102, a temperature sensor is installed on the surface of the incubation disk 102, a heating belt 104 is provided on the inner wall of the heating disk 101, and the heating belt 104 is connected to the temperature sensor and the control system 200. Specifically, the heating belt 104 is fixed on the heating disk 101, and the heating disk 101 is heated by the heating belt 104, and the incubation disk 102 is heated by the heat of the heating disk 101. A temperature sensor is provided on the incubation disk 102, and the temperature sensor is electrically connected to the heating belt 104. By setting the temperature sensor on the incubation disk 102, the heating belt 104 on the heating disk 101 can be automatically controlled according to the required temperature. The controller in the control system 200 is connected to the heating belt 104, and the controller starts or turns off the heating belt 104 according to the temperature data fed back by the temperature sensor. Because the heating disk 101 is above the incubation disk 102, by heating the heating disk 101, the heat of the heating disk 101 itself can be transferred to the incubation disk 102 through air conduction, so as to increase or decrease the temperature of the incubation disk 102. The controller in the control system can intelligently adjust the temperature of the heating belt 104 on the heating plate 101. Due to the existence of heat conduction, heat convection and heat radiation, the boundary conditions are usually divided into three types: conduction, convection and heat radiation.

[0023] (1) Conduction boundary conditions. Heat conduction refers to the transfer of internal energy from the high temperature side to the low temperature side between different parts of the same object or between contacting objects. If the temperature field of a certain part of the workpiece is known, according to Fourier's law, the heat flux intensity at any point at the boundary S at each moment is:

[0024]

[0025] where w s is the heat flux (W / (m.℃)), is the temperature gradient of heat flow direction, and the negative sign indicates flow from high to low.

[0026] (2) Convection boundary conditions. During thermal convection, the workpiece surface and the surrounding fluid exchange heat due to different temperatures. There are forced convection and natural convection. The thermal convection conditions at any time are known. At the temperature field boundary T z At any point, the heat flux intensity can be calculated using Newton's cooling equation:

[0027]

[0028] Among them, is the heat flux intensity (w / m 2 ), T l is the fluid (air) temperature (℃), h d is the convective heat transfer coefficient (W / (m.℃)), is the surface temperature of the solid (workpiece) (℃).

[0029] (3) Thermal radiation boundary conditions. Thermal radiation is a kind of energy exchange, which refers to the process in which a high-temperature object converts electromagnetic energy into internal energy and dissipates it, which is absorbed by other objects and converted into the heat of the other objects themselves. When the time is constant and there are no special conditions, the temperature of the workpiece is proportional to the amount of heat radiated. Given the radiation conditions at any point on the temperature field boundary r S at each time, the Stefan-Boltzmann law can be used to calculate the radiation heat flux intensity here:

[0030]

[0031] Among them, T r (℃) is the temperature of the radiating object, (℃) is the temperature field temperature at the workpiece boundary, is the radiation heat flux intensity, ε is the absorptivity, σ is the Stefan constant, and d is the shape factor, which is determined by the radiation object and the shape of the temperature field. That is, the temperature boundary condition is:

[0032]

[0033] in, T ∞ is the temperature of the cooling medium (°C).

[0034] In order to improve the heat conduction effect of the heating plate 101, the heating plate 101 is made of aluminum material. The heating plate is made of aluminum with better heat conduction material. A layer of heat preservation material is wrapped on the surface of the heating plate 101 to reduce the heat loss; the heating plate 101 is fixed to the top of the incubation plate 102, and the protruding part of the heating plate 101 covers the surface of the incubation plate 102. The area of the heating plate 101 is larger than that of the incubation plate 102 and protrudes around it, similar to the style of a bottle cap. The connection relationship between the heating plate 101 and the incubation plate 102 is similar to the relationship between the bottle mouth and the bottle cap. The incubation plate 102 is arranged on a support frame 106. The temperature balance in the plate is ensured by the heating plate 101. By fixing the temperature measurement sensor to the surface of the heating plate 101, the heating temperature can be quickly responded to, reducing the hysteresis of the temperature control. At the same time, a measuring temperature sensor is added to the surface of the incubation plate 102 to control the heating plate 101 to heat different temperatures, and record the temperature values of the surfaces of the heating plate 101 and the incubation plate 102 at the same time. The control system 200 uses the data collected by the temperature sensor 103 to simulate the temperature model relationship between the surfaces of the heating plate 101 and the incubation plate 102; this allows the heating plate 101 and the incubation plate 102 to better cooperate with each other. At the same time, other temperatures can also be set, and the temperature calculated by the model can be compared with the surface temperature of the incubation plate 102.

[0035]

Temperature sensor data collection

[0036] 1. Set the heating temperature to 33°C, and record the sensor values at the three positions of the incubation plate as 30°C, 30°C, and 29.9°C, with an average value of 29.97°C.

[0037] 2. Set the heating temperature to 37°C and record the sensor values at the three positions of the incubation plate as 31.5°C, 31.4°C, and 31.4°C, with an average value of 31.43°C.

[0038] 3. Set the heating temperature to 41°C and record the sensor values at the three positions of the incubation plate as 32.8°C, 32.9°C, and 32.9°C, with an average value of 32.87°C.

[0039] 4. Set the heating temperature to 45°C and record the sensor values at the three positions of the incubation plate as 34.4°C, 34.6°C, and 34.6°C, with an average value of 34.53°C.

[0040] 5. Based on the above data, the relationship between the heating plate 101 and the incubation plate 102 is calculated to be y=2.64x-46.009.

[0041] According to the incubation plate 102 temperatures of 30°C, 37°C and 40°C, the temperatures of the heating plate 101 were set to 33.2°C, 51.7°C and 59.6°C respectively. The actual measured temperature values were 30.7°C, 36.5°C and 40.8°C, which met the test requirements.

[0042] The heating plate 101 includes a heating sleeve having an annular edge and a bottom plate, wherein the inner wall of the annular edge forms the side boundary of the heating chamber, and the bottom plate is arranged on the bottom side of the annular edge, and the bottom plate and the annular edge form a barrel-shaped structure with an open upper end, and the top surface of the bottom plate serves as the bottom boundary of the heating chamber; the incubation plate and the heating plate are both installed in the space surrounded by the heating sleeve.

[0043] In summary, by replacing the heat-conducting material of the heating disk 101 and wrapping a layer of heat-insulating material on the surface of the heating disk 101, and connecting the temperature sensor to the control system 200, the temperature control effect of the incubation disk 102 can be improved. The heating disk 101 can control the temperature and heat the incubation disk 102 structure without the need for a particularly complex circuit. The heating belt 104 and the temperature sensor 103 are fixed to the incubation disk 102. In a limited range, there is no need to wrap the entire incubation disk 102, thereby reducing the complexity of the structural design.

[0044] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0045] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0046] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A temperature control structure for transferring heat to an incubation turntable through air, characterized in that: The invention comprises a heating plate (101) and an incubation plate (102), wherein a temperature sensor is installed on the heating plate (101), the area of the heating plate (101) is larger than that of the incubation plate (102), the heating plate (101) is installed above the incubation plate (102), the temperature sensor is installed on the incubation plate (102), and a heating belt (104) is provided on the heating plate (101), wherein the heating belt (104) is connected to the temperature sensor (103) and a control system (200).

2. The temperature control structure for transferring heat to the incubation turntable through air according to claim 1, characterized in that: The heating plate (101) is made of aluminum material.

3. The temperature control structure for transferring heat to the incubation turntable through air according to claim 1, characterized in that: The heating plate (101) is provided with a protrusion (105) on its circumference.

4. The temperature control structure for transferring heat to the incubation turntable through air according to claim 1, characterized in that: The protrusion (105) of the heating disk covers the surface of the incubation disk (102).

5. The temperature control structure for transferring heat to the incubation turntable through air according to claim 1, characterized in that: The heating plate (101) is wrapped with heat-insulating material.

6. The temperature control structure for transferring heat to the incubation turntable through air according to claim 1, characterized in that: A plurality of temperature sensors are installed.

7. The temperature control structure for transferring heat to the incubation turntable through air according to claim 1, characterized in that: The diameter of the heating plate (101) is greater than the diameter of the incubation plate (102).

8. The temperature control structure for transferring heat to the incubation turntable through air according to claim 1, characterized in that: The distances between the multiple temperature sensors and the center of the incubation tray (102) are not equal.