Composite thermal regulation and control structure with thermal stealth and thermal focusing functions

Abstract

The invention belongs to the field of thermal regulation and control, provides a composite thermal regulation and control structure with thermal stealth and thermal focusing functions, and aims to solve the problem that an existing thermal regulation and control structure lacks research on an irregular thermal protection area and a targeted heating area and cannot realize two functions of thermal protection and thermal focusing at the same time. The two sharp-corner-shaped structures of the thermal protection area coincide with the edge of the targeted heating area and the edge of the composite thermal regulation and control structure respectively, the two ends of the heat flow guiding area communicate with the background area and the targeted heating area, and the heat flow guiding area formed by filling and distributing the high-thermal-conductivity materials and the low-thermal-conductivity materials at intervals can directionally guide a thermal field. In the field of biomedicine, the targeted heating device is used for protecting surrounding normal cells while carrying out targeted heating on pathological cells; in a chip system, protection of a heat sensitive element and electrical intercommunication with a heat sensing element can be realized, and a composite heat regulation and control function is completed at the same time.

Description

Technical Field

[0001] The present invention belongs to the field of thermal regulation, and in particular relates to a composite thermal regulation structure with thermal stealth and thermal focusing functions. Background Art

[0002] In the biomedical field, the thermal protection areas in current thermal control structures are mostly circular, with only a few having irregular shapes. Furthermore, research on irregular thermal protection areas and targeted heating zones for heat concentration is still lacking. There is also a lack of thermal control structures that can control incident heat flux from any direction, placing diseased tissue, which needs to be destroyed by heat-focusing, in the heat-concentrated area, while surrounding healthy tissue, which needs to be protected, is placed in the heat-protected area. This allows for precise destruction of diseased tissue while simultaneously protecting healthy tissue. In practical applications, diseased and healthy tissue are not completely separated in space but rather closely adjacent. Therefore, the heat-concentrated and heat-protected areas in composite thermal control structures must be closely connected in space. Similarly, in circuit components, precision integrated circuits often have adjacent heat-sensitive components and heat-dissipating elements. To protect heat-sensitive components from heat damage during operation, there are currently no thermal control structures that can simultaneously achieve both thermal protection and heat concentration. Nor can they achieve the goal of directing all heat from the thermal field to the heat-concentrated area to achieve both thermal protection and heat concentration. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a composite thermal regulation structure with thermal stealth and thermal focusing functions, aiming to solve the problem in the existing technology that there is a lack of a structure that can simultaneously realize thermal stealth and thermal focusing functions and the thermal protection area is an irregular shape. The composite thermal regulation structure of the present invention includes interconnected thermal protection areas and targeted heating areas, which can realize the synergistic effect of thermal stealth and thermal focusing functions in space. The present invention can be used to achieve precise targeted treatment and protection, as well as thermal protection of heat-sensitive components and heat dissipation components in circuits, and can guide all the heat in the thermal field to the thermal aggregation area to achieve thermal protection and thermal aggregation.

[0004] To this end, the present invention provides the following technical solutions: A composite thermal regulation structure with thermal stealth and thermal focusing functions, wherein the composite thermal regulation structure is placed in a background area, the composite thermal regulation structure includes a thermal protection area with a thermal stealth function, a targeted heating area with a thermal focusing function, and a heat flow guiding area. The thermal protection area is placed inside the composite thermal regulation structure, and its two ends are pointed-angle structures, wherein one of the pointed-angle structures coincides with the edge of the composite thermal regulation structure, and the other pointed-angle structure coincides with the edge of the targeted heating area. The two pointed-angle structures are connected by a smooth arc surface to form a closed structure, and both sides of the thermal protection area are heat flow guiding areas; the heat flow guiding area includes a number of low thermal conductivity areas and high thermal conductivity areas distributed at intervals, and each of the low thermal conductivity area and the high thermal conductivity area is connected to the background area and the targeted heating area at both ends; the targeted heating area is placed in the heat flow guiding area.

[0005] Furthermore, the thermal protection area is symmetrical about a line connecting the ends of the two pointed-angle structures.

[0006] Furthermore, the heat flow guiding area has a symmetrical structure with respect to the heat protection area.

[0007] Furthermore, the low thermal conductivity area of the heat flow guiding region is filled with a low thermal conductivity material, and the high thermal conductivity area is filled with a high thermal conductivity material.

[0008] Furthermore, the thermal conductivity of the filling material of the background area is between the low thermal conductivity material and the high thermal conductivity material, and the filling material of the thermal protection area and the targeted heating area is the same as that of the background area.

[0009] Furthermore, the targeted heating area is circular.

[0010] In summary, the present invention has the following beneficial effects: The present invention utilizes a thermal protection area and a targeted heating area to enable the composite thermal regulation structure to have both thermal protection and thermal focusing functions, and the two areas are spatially interconnected. The thermal protection area is a symmetrical irregular shape, and the targeted heating area is circular, which can adapt to the complex needs in practical applications. The material of the composite thermal regulation structure of the present invention is simple and easy to make, and the cost is low. The stealth effect of the thermal protection area is excellent, and almost complete thermal protection can be achieved. In the biomedical field, the present invention is used to target diseased cells for heating while protecting surrounding normal cells. In chip systems, the present invention can achieve protection of heat-sensitive elements and electrical interconnection with heat-sensing elements, while completing the composite thermal regulation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the composite thermal regulation structure of the present invention; Figure 2 A grayscale diagram of the temperature field distribution when heat flows from left to right into the composite thermal regulation structure and reaches a thermal equilibrium state; Figure 3 It is a grayscale diagram of the temperature field distribution when the composite thermal regulation structure does not exist and the heat flow flows from left to right and reaches a thermal equilibrium state.

[0012] In the figure, 1-low thermal conductivity area; 2-high thermal conductivity area; 3-thermal protection area; 4-targeted heating area; 5-background area. DETAILED DESCRIPTION

[0013] The present invention will be described in further detail below with reference to the accompanying drawings.

[0014] It should be noted that, for the sake of convenience, the directions described below are consistent with the directions of the drawings themselves, but do not limit the structure of the present invention.

[0015] like Figures 1-3 As shown, the present invention discloses a composite thermal regulation structure with thermal stealth and thermal focusing functions, the composite thermal regulation structure is placed in the background area 5, the composite thermal regulation structure includes a thermal protection area 3 with thermal stealth function, a targeted heating area 4 with thermal focusing function and a heat flow guiding area, the thermal protection area 3 is placed inside the composite thermal regulation structure, and its two ends are pointed-angle structures, one of the pointed-angle structures coincides with the edge of the composite thermal regulation structure, and the other pointed-angle structure coincides with the edge of the targeted heating area 4, and the two pointed-angle structures are connected by a smooth arc surface to form a closed structure, the thermal protection area 3 is symmetrical about the line connecting the ends of the two pointed-angle structures; the thermal protection area 3 is flanked by heat flow guiding areas; the heat flow guiding area includes a number of low thermal conductivity areas 1 and high thermal conductivity areas 2 distributed at intervals, each of the low thermal conductivity area 1 and the high thermal conductivity area 2 is connected to the background area 5 and the targeted heating area 4 at both ends, and the heat flow guiding area is symmetrical about the thermal protection area 3; the targeted heating area 4 is placed in the heat flow guiding area, and the targeted heating area 4 is circular, in Figure 1 In the illustrated embodiment, the composite thermal regulation structure is circular, with the diameter passing through the center of the composite thermal regulation structure in the horizontal direction as the axis of symmetry. The thermal protection area 3 is symmetrical about the axis of symmetry, the heat flow guiding area is symmetrically distributed on both sides of the thermal protection area 3, and the heat flow direction area is symmetrical about the axis of symmetry.

[0016] The low thermal conductivity region 1 of the heat flow guiding region is filled with a low thermal conductivity material, and the high thermal conductivity region 2 is filled with a high thermal conductivity material.

[0017] The thermal conductivity of the filling material of the background area 5 is between the low thermal conductivity material and the high thermal conductivity material. The filling material of the heat protection area 3 and the targeted heating area 4 is the same as that of the background area 5 .

[0018] The heat flow guidance area, which is filled with high and low thermal conductivity materials and spaced apart, can directional guide the thermal field, thereby forming a thermal protection area and a targeted heating area. The thermal protection area is used to place healthy tissue to protect it from thermal interference; while the targeted heating area achieves heat enhancement by converging the surrounding thermal field, which is used to destroy diseased or cancerous tissue. High thermal conductivity materials include but are not limited to brass, copper, and aluminum alloys; low thermal conductivity materials include but are not limited to air, EPS, and foam plastics; background materials are materials with moderate thermal conductivity, such as thermal pads; high thermal conductivity materials have higher thermal conductivity than background materials, while low thermal conductivity materials have lower thermal conductivity than background materials.

[0019] In this embodiment, the filling materials of the thermal protection area 3 and the targeted heating area 4 are both thermal pads with a thermal conductivity of k=16. The heat flow guide area adjacent to the thermal protection area 3 is partially made of EPS with a thermal conductivity of k=0.04, i.e., a low thermal conductivity material, serving as low thermal conductivity area 1. On the other side of low thermal conductivity area 1 is high thermal conductivity area 2, which is filled with copper with a thermal conductivity of k=400, i.e., a high thermal conductivity material, with copper and EPS arranged in a staggered pattern. The filling material of the background area 5 is the same as that of the thermal protection area and the targeted heating area, both of which are thermal pads with a thermal conductivity of k=16.

[0020] exist Figure 1 In the composite thermal regulation structure shown, the diameter of the small circle, i.e., the targeted heating area 3, is 2 cm, the diameter of the large circle, i.e., the composite thermal regulation structure, is 20 cm, and the distance between the centers of the two circles is 6 cm. When heat flux enters the composite thermal regulation structure from different angles in the background area 5, the high and low thermal conductivity materials guide the heat flux to the heat concentration area, thereby making the temperature of the targeted heating area 3 much higher than the ambient temperature, achieving the effect of medical tumor hyperthermia. When the composite thermal regulation structure of the present invention is present in the background area, after the heat flux flows from left to right into the composite thermal regulation structure having both thermal protection and thermal focusing functions, the temperature field distribution grayscale diagram when the thermal equilibrium state is reached is as shown in FIG. Figure 2 When the composite thermal control structure of the present invention does not exist in the background area, the temperature field distribution grayscale image when the heat flow flows from left to right and reaches the thermal equilibrium state is as shown in FIG. Figure 3 shown.

[0021] The thermal protection area is used to place objects that require thermal protection (such as heat-sensitive elements), while the targeted heating area is used to place objects that require heat treatment (such as heat-sensing elements). The thermal protection area and the targeted heating area are spatially interconnected, and can achieve electrical connectivity or biological connectivity through wires or cells, etc., while maintaining their respective thermal regulation functions. The present invention is achieved by embedding high and low thermal conductivity materials into a background material with moderate thermal conductivity in a specific manner. In the biomedical field, the present invention can be used to target diseased cells while protecting surrounding normal cells; in a chip system, it can achieve protection of heat-sensitive elements and electrical interconnection with heat-sensing elements, while completing a composite thermal regulation function.

[0022] The description of the above embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not limited to the embodiments shown herein, but should be construed in the widest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A composite thermal control structure with thermal stealth and thermal focusing functions, characterized in that: The composite thermal regulation structure is placed in the background area (5), and the composite thermal regulation structure includes a thermal protection area (3) with a thermal stealth function, a targeted heating area (4) with a thermal focusing function, and a heat flow guiding area. The thermal protection area (3) is placed inside the composite thermal regulation structure, and its two ends are pointed-angle structures, one of which coincides with the edge of the composite thermal regulation structure, and the other coincides with the edge of the targeted heating area (4). The two pointed-angle structures are connected by a smooth arc surface to form a closed structure. The two sides of the thermal protection area (3) are heat flow guiding areas; the heat flow guiding area includes a plurality of low thermal conductivity areas (1) and high thermal conductivity areas (2) distributed at intervals, and each of the low thermal conductivity areas (1) and the high thermal conductivity area (2) is connected to the background area (5) and the targeted heating area (4) at both ends; the targeted heating area (4) is placed in the heat flow guiding area.

2. The composite thermal control structure with thermal stealth and thermal focusing functions according to claim 1, characterized in that: The heat protection area (3) is symmetrical with respect to a line connecting the ends of the two pointed-angle structures.

3. The composite thermal control structure with thermal stealth and thermal focusing functions according to claim 1, characterized in that: The heat flow guide area has a symmetrical structure with respect to the heat protection area (3).

4. The composite thermal control structure with thermal stealth and thermal focusing functions according to claim 1 or 3, characterized in that: The low thermal conductivity region (1) of the heat flow guiding region is filled with a low thermal conductivity material, and the high thermal conductivity region (2) is filled with a high thermal conductivity material.

5. The composite thermal control structure with thermal stealth and thermal focusing functions according to claim 4, characterized in that: The thermal conductivity of the filling material of the background area (5) is between the low thermal conductivity material and the high thermal conductivity material, and the filling material of the heat protection area (3) and the targeted heating area (4) is the same as that of the background area (5).

6. The composite thermal control structure with thermal stealth and thermal focusing functions according to claim 1, characterized in that: The targeted heating area (4) is circular.

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