Hot container

Abstract

The utility model provides a hot container, which relates to the technical field of heat exchange, and comprises a shell, a partition wall formed by three-period extremely small curved surfaces is fixedly connected in the shell, the partition wall divides the internal space of the shell into a first cavity and a second cavity which are not communicated with each other, cooling liquid is arranged in the first cavity, and cooling liquid is arranged in the second cavity. A second cavity is formed in the shell, heat capacity liquid is arranged in the second cavity, a heat capacity liquid injection port, a cooling liquid inlet and a cooling liquid outlet are formed in the shell, the heat capacity liquid injection port is communicated with the second cavity, and the cooling liquid inlet and the cooling liquid outlet are communicated with the two ends of the first cavity respectively. According to the heat container, the partition wall composed of the three-period extremely-small curved surfaces is used as a whole in an internal flow channel cavity, the partition wall divides the internal space of a shell into two independent cavities with different functions, the two cavities are mutually staggered and coupled to achieve the purpose of the maximum heat exchange area, and the partition wall composed of the three-period extremely-small curved surfaces can be used for heat exchange of the heat container. And high flexibility and optimization are achieved, and the mechanical strength of the whole structure can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, and more specifically, to a heat exchange container. Background Technology

[0002] With the continuous development of electric aircraft and high-efficiency motor control technology, thermal management and cooling systems are playing an increasingly important role in ensuring the stability and safety of aircraft and their critical equipment. Under certain operating conditions, such as the takeoff phase of an aircraft, the motor and electronic control system will experience short-term high power peaks (peak conditions), generating a large amount of heat. Traditional cooling systems often aim to ensure that the system reaches thermal equilibrium under steady-state conditions, thereby controlling the operating temperature of critical components to ensure stable performance and lifespan of the equipment.

[0003] For short-term or sudden heat surges, engineers must design thermal management and cooling systems based on the highest power peak during that short period. This inevitably results in a large cooling margin under subsequent long-term rated operating conditions (cruise conditions), which is not conducive to overall lightweight and low-cost design.

[0004] Traditional liquid cooling radiators dissipate heat through internal U-shaped channels combined with heat dissipation fins. However, these radiators have sharp bends inside, which can cause significant pressure loss, especially at the high point of the liquid level, where air locks can easily form, leading to poor heat dissipation. Utility Model Content

[0005] The technical problem to be solved by this invention is that the peak heat of the components inside the aircraft cannot be dissipated quickly in a short period of time in the prior art. In order to overcome the above-mentioned defects of the prior art, this invention provides a heat container.

[0006] This utility model provides a heat container, including a shell, within which a partition wall composed of three periodic minimal curved surfaces is fixedly connected. The partition wall divides the internal space of the shell into a first cavity and a second cavity that are not interconnected. The first cavity contains coolant, and the second cavity contains heat-containing liquid. The shell is provided with a heat-containing liquid inlet, a coolant inlet, and a coolant outlet. The heat-containing liquid inlet communicates with the second cavity, and the coolant inlet and outlet communicate with both ends of the first cavity, respectively. The shell includes a long, hollow outer shell, two caps, and two end caps. The partition wall is placed inside the long, hollow outer shell, and the outer wall of the partition wall is sealed to the inner wall of the long, hollow outer shell. The two caps are sealed to the ends of the second cavity at both ends of the partition wall, and the two end caps are sealed to the ends of the first cavity at both ends of the partition wall. The heat-containing liquid inlet is located on the side wall of the long, hollow outer shell, and the coolant inlet and outlet are located on the end caps.

[0007] Compared with the prior art, the heat container proposed in this application has the following advantages: the internal flow channel cavity structure of the heat container is composed of a three-period minimal curved surface as an isolation wall. The isolation wall divides the internal space of the shell into two independent cavities with different functions. The two cavities are interleaved and coupled to achieve the purpose of maximizing the heat exchange area. Furthermore, the special nature of the three-period minimal curved surface structure has high design flexibility and optimization, and can also enhance the mechanical strength of the overall structure.

[0008] In one possible implementation, the housing is further provided with a seal for blocking the hot liquid injection port.

[0009] Compared with existing technologies, the seal prevents the hot melt from overflowing after injection.

[0010] In one possible implementation, the heat-capacitating liquid is a fluid substance with high heat capacity or a phase change material with high latent heat.

[0011] Compared with existing technologies, the heat-capacity fluid uses substances with higher specific heat capacity or phase change materials, while the coolant utilizes its fluidity and thermal conductivity to quickly remove heat.

[0012] In one possible implementation, the heat-containing liquid is water or paraffin.

[0013] Compared to existing technologies, it is cheaper and simpler to use water or paraffin.

[0014] In one possible implementation, the isolation wall is integrally formed with the shell, and the material of the isolation wall is ALSI10MG aluminum alloy.

[0015] Compared with existing technologies, the use of ALSI10MG 3D printing material with high thermal conductivity can increase heat exchange efficiency, and the one-piece design ensures the overall structural strength and sealing, preventing the mixing of heat transfer fluid and coolant.

[0016] In one possible implementation, the thickness of the isolation wall is 0.6 mm to 0.7 mm. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front structure of a heat container according to the present invention;

[0018] Figure 2 This is a schematic diagram of the overall back structure of a heat container according to the present invention;

[0019] Figure 3 This is a schematic diagram of the front structure of the shell of a heat container according to the present invention;

[0020] Figure 4 This is a schematic diagram of the back structure of the shell of a heat container according to the present invention;

[0021] Figure 5 A schematic diagram of the structure of a heat container according to this utility model, showing the internal space of the shell filled with coolant and heat-containing liquid;

[0022] Figure 6 This is a schematic diagram of the isolation wall structure of a heat container according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Shell; 11-Long hollow shell; 12-Cap; 13-Head; 2-Isolation wall; 3-Coolant; 31-Coolant inlet; 32-Coolant outlet; 4-Hot liquid; 41-Hot liquid injection port. Detailed Implementation

[0025] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0026] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0027] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] See Figures 1-6As shown, this embodiment relates to a heat container, including a shell 1. An isolation wall 2 composed of three periodic minimal curved surfaces is fixedly connected inside the shell 1. The isolation wall 2 divides the internal space of the shell 1 into a first cavity and a second cavity that are not interconnected. Coolant 3 is provided in the first cavity, and hot liquid 4 is provided in the second cavity. The shell 1 is provided with a hot liquid injection port 41, a coolant inlet 31 and a coolant outlet 32. The hot liquid injection port 41 is connected to the second cavity, and the coolant inlet 31 and the coolant outlet 32 ​​are respectively connected to the two ends of the first cavity.

[0030] This embodiment employs two independent cavity structures with different functions. The flow channel cavity structure as a whole uses a three-period minimal curved surface lattice unit design. The two cavities are interleaved and coupled to achieve the maximum heat exchange area. Furthermore, the special characteristics of the three-period minimal curved surface structure provide high design flexibility and optimization, while also enhancing the mechanical strength of the overall structure.

[0031] Heat from the heat source is transferred to the first chamber through the external coolant 3 via the coolant inlet 31. Since the first and second chambers are connected by a large intermediate partition wall 2 with a large surface area, the heat in the coolant 3 can be quickly transferred to the heat-containing liquid 4 in the second chamber, temporarily storing the heat and rapidly reducing the temperature of the coolant 3. This allows the coolant 3 to flow out from the coolant outlet 32 ​​at a lower temperature to participate in the next heat cycle, reducing the cooling pressure of the system and improving the heat exchange efficiency of the coolant.

[0032] The heat absorbed by the hot liquid 4 is released back to the coolant 3 after the temperature rises and falls, and then exchanged to the outside air through the radiator such as a fan to achieve overall thermal balance.

[0033] Among them, the isolation wall 2 of the three-period minimal surface (TPMS) lattice is a surface with an average curvature of zero. It has advantages such as large specific surface area, light weight and superior mechanical properties. 3D printing can realize the internal flow channel processing of TPMS lattice without internal support, laying the foundation for processing.

[0034] In this embodiment, the isolation wall 2 adopts a three-period minimal curved surface, and its curvature is not required. The resulting flow channel structure is special. The entire internal flow channel is a winding and tortuous three-dimensional flow channel with no straight sections. This can greatly increase the turbulence intensity and heat exchange effect. The continuous and balanced curvature change structure is also less likely to form local vortices and dead zones, reducing unnecessary energy loss.

[0035] Traditional radiators use a U-shaped bend structure, which has sharp bends that cause significant pressure loss and are prone to airlock. In this embodiment, however, through the isolation wall 2 of the three-period minimal surface (TPMS) lattice, the coolant 3 passes through this internal curved surface with continuous and balanced curvature changes. Furthermore, the overall symmetrical and ordered flow channel structure significantly reduces flow resistance. The cross-sectional area of ​​the flow channel remains almost constant at any location, further reducing pressure loss and unnecessary energy consumption.

[0036] In this embodiment, the isolation wall 2 is made of a material with high thermal conductivity and is integrated with the shell 1. For example, the 3D printing material ALSI10MG has a thermal conductivity of close to 140W (m*K). Due to the special structure of the isolation wall 2, the overall strength of the isolation wall 2 is increased, and the thickness of the isolation wall 2 can be reduced. For example, under a design pressure of 2 bar, the thickness of the isolation wall 2 can be designed to be 0.6mm, which is the limit of the thinnest thickness in ordinary 3D printing process.

[0037] Of course, in the actual design process, the isolation wall 2 can also be separately formed from the shell 1. In this case, the two need to be combined and fixed by welding. The material of the isolation wall 2 can be aluminum and copper alloy, and the shell 1 can be made of AL6061 material. The whole can be made of metal materials.

[0038] In this embodiment, the housing 1 includes a long hollow shell 11, two caps 12 and two end caps 13. The isolation wall 2 is placed inside the long hollow shell 11, and the outer wall of the isolation wall 2 is sealed to the inner wall of the long hollow shell 11. The two caps 12 are respectively sealed to the second cavity ends at both ends of the isolation wall 2. The two end caps 13 are respectively sealed to the first cavity ends at both ends of the isolation wall 2. The hot liquid injection port 41 is provided on the side wall of the long hollow shell 11. The coolant inlet 31 and the coolant outlet 32 ​​are respectively provided on the end cap 13.

[0039] The entire cavity is sealed by a long, hollow outer shell 11, a cap 12, and a head 13, which facilitates manufacturing.

[0040] The elongated hollow shell 11 can be a rectangular prism. In this case, the outer contour of the isolation wall 2 is also roughly rectangular. The internal space formed by the rectangular hollow shell, the cap 12 and the end cap 13, is divided into two non-communicating cavities, the first cavity and the second cavity, so that the liquid in the two cavities has enough area for heat exchange.

[0041] Of course, the elongated hollow shell 11 can also be a cylindrical shape. In this case, the outer contour of the partition wall 2 is also roughly cylindrical.

[0042] Furthermore, the housing 1 is also provided with a seal for blocking the hot melt injection port 41. The seal prevents the hot melt 4 from overflowing after injection.

[0043] Among them, the heat capacity liquid 4 is a fluid substance with high heat capacity or a phase change material with high latent heat.

[0044] The heat transfer fluid 4 uses a substance with a high specific heat capacity or a phase change material, while the coolant 3 utilizes its fluidity and thermal conductivity to quickly remove heat. Since the second chamber is not powered, and the thermal conductivity of the heat transfer fluid 4 is relatively low at room temperature (water has a thermal conductivity of 0.6 W / (m·K), which is 0.15 W / (m·K), classifying it as a low-thermal-conductivity material), it is necessary to increase the heat transfer area to achieve efficient heat exchange.

[0045] In this embodiment, the heat-concentrating liquid 4 can be water or paraffin.

[0046] By applying the heat container in this embodiment to the aircraft's cooling system, the system's thermal management capability is significantly improved, especially during periods of high power peaks, effectively absorbing heat and preventing overheating. Specific effects are as follows:

[0047] Improved thermal management capabilities: By utilizing the heat absorption and release properties of heat-capacity materials, the system can effectively slow down the temperature rise during the high-power phase of the motor and electronic control system, thereby improving the system's thermal management capabilities.

[0048] Improve operational stability and extend component life: The optimized cooling system avoids performance fluctuations or malfunctions in the motor and electronic control system caused by overheating, thus extending the service life of key components.

[0049] Reduced costs: The system reduces the weight of more components compared to traditional cooling systems, thus lowering manufacturing costs.

[0050] Reduced energy consumption: Compared to traditional cooling systems, it can reduce the power of pumps or fans, thus reducing overall energy consumption.

[0051] In summary, this technical solution can significantly improve the thermal management capability of the aircraft's electronic control system during takeoff and high-power peak operation, improve the overall system performance, and ensure the efficient and stable operation of the equipment.

[0052] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0053] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A thermal container, comprising a shell (1), characterized in that, The housing (1) is fixedly connected to an isolation wall (2) composed of three periodic minimal curved surfaces. The isolation wall (2) divides the internal space of the housing (1) into a first cavity and a second cavity that are not interconnected. The first cavity contains coolant (3), and the second cavity contains heat-containing liquid (4). The housing (1) is provided with a heat-containing liquid injection port (41), a coolant inlet (31), and a coolant outlet (32). The heat-containing liquid injection port (41) is connected to the second cavity, and the coolant inlet (31) and the coolant outlet (32) are connected to the two ends of the first cavity, respectively. The housing (1) includes a long hollow shell (11), two caps (12) and two end caps (13). The isolation wall (2) is placed inside the long hollow shell (11), and the outer wall of the isolation wall (2) is sealed to the inner wall of the long hollow shell (11). The two caps (12) are respectively sealed to the ends of the second cavities at both ends of the isolation wall (2). The two end caps (13) are respectively sealed to the ends of the first cavities at both ends of the isolation wall (2). The hot liquid injection port (41) is provided on the side wall of the long hollow shell (11). The coolant inlet (31) and the coolant outlet (32) are respectively provided on the end caps (13).

2. The thermal container according to claim 1, characterized in that, The housing (1) is also provided with a seal for blocking the hot liquid injection port (41).

3. The thermal container according to claim 1, characterized in that, The heat capacity liquid (4) is a fluid substance with high heat capacity or a phase change material with high latent heat.

4. The thermal container according to claim 3, characterized in that, The heat-concentrating liquid (4) is water or paraffin.

5. The thermal container according to claim 1, characterized in that, The isolation wall (2) is integrally formed with the shell (1), and the material of the isolation wall (2) is ALSI10MG aluminum alloy.

6. The thermal container according to claim 1, characterized in that, The thickness of the isolation wall (2) is 0.6 mm to 0.7 mm.

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