Self-circulation phase-change even-heating pot and heating container

Abstract

The utility model provides a kind of self-circulation phase change even heating pot and heating container, it includes: pot body, the heat conduction area of pot body is equipped with multiple heat circulation flow channel cavities, multiple heat circulation flow channel cavities are interconnected, and all with external environment is isolated, heat circulation flow channel cavity inside is filled with liquid heat conducting medium, liquid heat conducting medium is heated after forming circulation phase change even heating system inside multiple heat circulation flow channel cavities.The utility model provides circulation phase change space for liquid heat conducting medium by the multiple heat circulation flow channel cavities specially designed on pot body, when pot body is heated, liquid heat conducting medium gathered at heat source place can absorb heat at heat source place to realize rapid gasification, then liquefied heat release after moving to the position away from heat source along heat circulation flow channel cavity, so as to realize the rapid transfer diffusion of heat.Compared with conventional container, the present application has the advantages of fast heating speed, excellent even heating effect, low cost, long service life and wide application scenarios.

Description

Technical Field

[0001] This utility model relates to the field of container technology, specifically to a self-circulating phase change uniform heating pot and heating container. Background Technology

[0002] In catering and home cooking scenarios, metal containers such as iron pots and stainless steel pots are the core tools for heating and cooking food. Their applications cover a variety of cooking methods such as frying, stir-frying, boiling, and stewing, and they have a wide range of users worldwide.

[0003] In existing technologies, the heating principle of such containers generally relies on an external heat source (such as a gas stove flame or an electric heating plate) acting directly on the bottom of the pot. After the bottom absorbs heat, the heat is then transferred from the bottom to the upper part of the pot through its own thermal conductivity, ultimately heating the food inside. However, this traditional heat transfer method has significant technical drawbacks, making it difficult for the containers to meet the requirements of efficient and uniform heating during actual cooking. Specific problems are as follows: On the one hand, due to the limited structure and heat conduction path of the pot, heat exhibits a significant gradient attenuation as it is transferred from the bottom to the upper part of the pot. While the bottom, as the directly heated area, can quickly reach the high temperatures required for cooking, the pot itself has low thermal conductivity, typically not exceeding 100 W / (m·K). This results in significant heat loss during internal heat transfer, causing the upper part of the pot to be much colder than the bottom, creating an uneven heating state of "overheated bottom and underheated top." This uneven heating is directly transferred to the food inside the pot, causing significant differences in the degree of heating in different parts. For example, food at the bottom is prone to scorching and carbonization, while food in the upper part remains undercooked or insufficiently heated, severely affecting the taste and quality of the finished product, especially for stir-fried and pan-fried foods that require even heating.

[0004] On the other hand, the low thermal conductivity of the pot body leads to heat transfer losses, which in turn causes low energy efficiency and increased cooking time. In order for the food in the upper part of the pot to achieve the expected heating effect, users need to continuously maintain a high power output of the external heat source to compensate for the heat loss during the transfer process within the pot body. This not only leads to additional consumption of energy such as gas and electricity, increasing the cost of use, but also prolongs the cooking time due to the overall low heating efficiency, which contradicts the current advocacy of "energy-saving and efficient" cooking.

[0005] Meanwhile, the prolonged exposure of the pot bottom to high temperatures will accelerate oxidation and wear on the bottom of the pot, shorten the lifespan of the container, and further increase the user's operating costs and resource waste.

[0006] In summary, the traditional heating method of existing iron pots and other containers, which relies on the bottom of the pot being heated and the pot body conducting heat, generally suffers from uneven heating, large heat loss, low energy efficiency, and excessively long cooking time due to the limitations of the pot's own thermal conductivity. This makes it difficult to meet the modern cooking demand for efficient, uniform, and energy-saving heating. There is an urgent need for a technical solution that can optimize the heat transfer path and improve the overall heating uniformity and energy utilization efficiency of the pot to overcome the shortcomings of the existing technology. Summary of the Invention

[0007] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the uniformity of heating of the pot body and the efficiency of heat conduction need to be improved in the prior art, and to provide a self-circulating phase change uniform heating pot and heating container.

[0008] To solve the above-mentioned technical problems, this utility model provides a self-circulating phase change uniform heating pot, which includes: a pot body, wherein the heat-conducting area of ​​the pot body is provided with multiple heat circulation flow channel cavities, the multiple heat circulation flow channel cavities are interconnected and isolated from the external environment, the heat circulation flow channel cavities are filled with liquid heat-conducting working fluid, and the liquid heat-conducting working fluid forms a circulating phase change uniform heating system inside the multiple heat circulation flow channel cavities after being heated.

[0009] In one embodiment of this utility model, the pot body is further provided with a docking part, and multiple hot circulation channel cavities are all connected to the docking part. The docking part is externally connected to a negative pressure generating device so as to make the interior of the hot circulation channel cavity a negative pressure environment before the liquid heat-conducting working fluid is filled.

[0010] In one embodiment of the present invention, the pot body includes an inner liner and an outer liner, the inner liner being fitted into the outer liner, and the hot circulation channel cavity being disposed on the inner liner and / or the outer liner.

[0011] In one embodiment of this utility model, the outer liner is provided with a plurality of heat circulation channels, all of which protrude outward from the inner wall of the outer liner to form the heat circulation channel cavity together with the inner liner.

[0012] In one embodiment of the present invention, the outer surface of the outer liner is provided with a covering shell, the surface of which is a smooth structure, and is disposed on the outer surface of the outer liner to cover the heat circulation channel cavity.

[0013] In one embodiment of this utility model, the inner liner is provided with a plurality of heat circulation channels, each of which is recessed inward from the outer wall of the inner liner to form the heat circulation channel cavity together with the outer liner. The inner surface of the inner liner is provided with a covering shell, the surface of which is a smooth structure and is disposed on the inner surface of the inner liner to cover the heat circulation channel cavity.

[0014] In one embodiment of the present invention, the pot body includes a pot bottom, a side wall and an outer edge, one end of the side wall is disposed around the pot bottom and the other end is connected to the outer edge, and multiple hot circulation flow channel cavities are arranged on the pot bottom and at least part of the side wall.

[0015] In one embodiment of this utility model, the arrangement structure of the plurality of interconnected hot circulation channel cavities is one of the following: mesh arrangement structure, honeycomb arrangement structure, leaf vein arrangement structure, and river-like arrangement structure.

[0016] This utility model also provides a method for preparing a self-circulating phase change uniform heating pot, which is used to prepare the above-mentioned self-circulating phase change uniform heating pot, comprising: step S1, preparing multiple thermal circulation channel cavities on the pot body; step S2, after vacuuming the multiple thermal circulation channel cavities, filling the multiple thermal circulation channel cavities under negative pressure in the internal environment with liquid heat-conducting working fluid; step S3, sealing the thermal circulation channel cavities to obtain the self-circulating phase change uniform heating pot.

[0017] In one embodiment of this utility model, step S1 specifically comprises: step S11, preparing the inner liner of the pot body, wherein the method for preparing the inner liner includes one or more of stamping, casting, or machining; step S12, preparing the outer liner of the pot body according to the shape of the inner liner, and preparing a plurality of interconnected hot circulation channels on the outer liner, wherein the method for preparing the hot circulation channels includes one or more of rolling, engraving, etching, or blowing; step S13, connecting the inner liner and the outer liner so that the plurality of hot circulation channels and the inner liner together form a plurality of interconnected hot circulation channel cavities, wherein the connection method between the inner liner and the outer liner includes one or more of welding, hot pressing, or adhesive bonding.

[0018] In one embodiment of this utility model, step S2 specifically includes: step S21, preparing a docking part on the pot body that communicates with the plurality of thermal circulation channel cavities, and connecting the docking part to an external vacuum generating device and a working fluid supply device respectively; step S22, the external vacuum generating device performing vacuum processing on the plurality of thermal circulation channel cavities through the docking part; step S23, the external working fluid supply device supplying liquid heat-conducting working fluid to the plurality of thermal circulation channel cavities through the docking part.

[0019] In one embodiment of this utility model, step S3 specifically includes: sealing the hot circulation channel cavity by one or more of welding, hot pressing or adhesive bonding to obtain a self-circulating phase change uniform heating pot.

[0020] In one embodiment of this utility model, the liquid thermally conductive working medium substrate includes a water-based solution working medium, a fluorinated working medium, or a hydrocarbon working medium.

[0021] This utility model also provides a heating container, which includes the above-mentioned self-circulating phase change uniform heating pot.

[0022] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The self-circulating phase change uniform heating pot and heating container of this invention provide a circulating phase change space for the liquid heat-conducting working fluid through multiple specially designed heat circulation channels on the pot body. When the pot body is heated, the liquid heat-conducting working fluid accumulated at the heat source can absorb the heat from the heat source to achieve rapid vaporization. Then, it moves along the heat circulation channels to a position away from the heat source and liquefies to release heat, thereby achieving rapid heat transfer and diffusion. Based on this structural design and effect, this self-circulating phase change uniform heating pot first has extremely excellent heat uniformity performance, which can quickly and evenly transfer the concentrated heat from the heat source to all areas of the pot body, significantly reducing the temperature difference between different parts of the pot body, fundamentally avoiding the problem of uneven heating of food caused by local overheating, and effectively improving the cooking quality.

[0023] Secondly, the heat transfer efficiency of the self-circulating phase change uniform heating pot provided by this utility model is greatly improved. By taking advantage of the characteristics of the liquid heat-conducting working medium absorbing and releasing a large amount of latent heat during the phase change process, compared with the traditional method of relying solely on the heat conduction of the metal itself, the heat transfer speed is faster, which allows the pot body to reach a uniform working temperature in a shorter time. This not only shortens the preheating time before cooking, but also improves energy utilization efficiency and reduces energy waste.

[0024] Meanwhile, this self-circulating phase change uniform heating structure also has strong versatility and can be flexibly adapted to different types of heating containers such as woks, soup pots, and frying pans. Regardless of the common heating method such as open flame, electromagnetic, or electric heating, it can stably perform a good uniform heating effect, making it applicable to a wide range of scenarios and extremely practical. Finally, in terms of safety and user comfort, the rapid heat dissipation significantly reduces the duration of localized high-temperature areas on the pot, which not only lowers the risk of pot deformation and damage caused by prolonged localized high temperatures, but also reduces excessive oil fumes generated during cooking due to localized overheating, improving the cooking environment, enhancing user safety and comfort, and providing users with a better cooking experience.

[0025] Compared with existing conventional heating containers, this application has the advantages of fast heating speed, excellent heat uniformity, low cost, long service life and wide applicability, thus it has considerable application prospects. Attached Figure Description

[0026] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] Figure 1 This is a three-dimensional structural diagram of the self-circulating phase change uniform heating pot in a preferred embodiment of the present invention; Figure 2 yes Figure 1 A three-dimensional structural schematic diagram of the self-circulating phase change uniform heating pot from another perspective. Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the outer liner of the self-circulating phase change uniform heating pot is shown. Figure 4 This is an enlarged view of the structure at point A in the diagram; Figure 5 yes Figure 1 The diagram shows a three-dimensional structure of the inner liner of a self-circulating phase change uniform heating pot.

[0028] Explanation of the reference numerals in the accompanying drawings: 100, pot body; 110, outer liner; 120, inner liner; 130, hot circulation channel cavity; 140, filling port. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0030] Example 1:

[0031] See Figures 1 to 5 As shown, this embodiment provides a self-circulating phase change uniform heating pot, which includes: a pot body 100, wherein the heat-conducting area of ​​the pot body 100 is provided with multiple heat circulation flow channel cavities 130, the multiple heat circulation flow channel cavities 130 are interconnected and isolated from the external environment, the heat circulation flow channel cavities 130 are filled with liquid heat-conducting working fluid, and the liquid heat-conducting working fluid forms a circulating phase change uniform heating system inside the multiple heat circulation flow channel cavities 130 after being heated.

[0032] Among them, the pot body 100, as the basic load-bearing structure of the entire device, not only provides cooking space for food, but its heat-conducting area is the core carrier for realizing heat transfer and uniform distribution. It directly provides stable structural support for the layout of the heat circulation channel cavity 130, and at the same time, it directly contacts the heat source to receive heat, and initially transfers the heat to the heat circulation channel cavity 130 through its own heat conduction performance. Typically, the heat-conducting area of ​​the pot body includes the bottom of the pot and the side wall near the bottom of the pot.

[0033] As a key structural unit, the thermal circulation channel cavity 130, with multiple thermal circulation channel cavities 130 arranged to form a network covering the heat-conducting area of ​​the pot body 100, provides a dedicated channel for the flow and phase change of the liquid heat-conducting working fluid. The interconnected design between them ensures that the working fluid can flow freely between different thermal circulation channel cavities 130, forming a complete circulation path, allowing heat to diffuse from the vicinity of the heat source to various areas of the pot body 100. The closed characteristic of isolating from the external environment can prevent leakage of the liquid heat-conducting working fluid, ensure the sealing of the circulation system, and prevent external air, water vapor and other impurities from entering the cavity and affecting the performance of the working fluid and the circulation effect, thus maintaining the stability of the internal environment of the system.

[0034] The liquid heat transfer medium is a functional carrier for achieving efficient heat transfer and uniform distribution. In its initial state, it exists in liquid form in the heat circulation channel cavity 130. When the pot body 100 is heated, the working medium near the heat source absorbs heat and rapidly undergoes a phase change to become gaseous. It utilizes the characteristic of absorbing a large amount of latent heat during the phase change to efficiently accumulate heat at the heat source. The gaseous working medium then moves along the heat circulation channel cavity 130 to a low-temperature region away from the heat source. After reaching the low-temperature region, it releases latent heat and liquefies back to liquid, transferring the heat it carries to that region. Subsequently, the liquid working medium flows back to the vicinity of the heat source under the action of gravity or system pressure difference to absorb heat again. This cycle repeats, eventually forming a continuous circulating phase change uniform heating system inside the multiple heat circulation channel cavities 130, achieving uniform heat distribution throughout the pot body 100.

[0035] Specifically, the pot body 100 includes a pot bottom, side walls and an outer edge. One end of the side wall is arranged around the pot bottom and the other end is connected to the outer edge. Multiple hot circulation flow channel cavities 130 are arranged on the pot bottom and at least part of the side walls.

[0036] In the structure of the pot body 100 of the self-circulating phase change uniform heating pot, the bottom of the pot is the core area that directly receives the heat from the heat source. Its main function is to efficiently receive the energy from heat sources such as open flame and electromagnetic fields, and transfer the heat to the internal liquid heat-conducting working fluid, while providing a bottom support surface for the food. The side walls are set around the bottom of the pot, which on the one hand form the circumferential boundary of the cooking space to prevent the food and soup from overflowing, and on the other hand can transfer heat from the bottom of the pot to the upper part of the pot body 100 to avoid uneven heating of the food. The design of multiple hot circulation channels 130 arranged on the bottom of the pot and at least part of the side walls further optimizes the heat transfer and uniform distribution effect. Specifically, the channel cavities arranged on the bottom of the pot allow the working fluid to directly and quickly absorb the heat released by the heat source, quickly start the phase change cycle, and avoid local overheating of the bottom of the pot. Extending the channel cavities to at least part of the side walls allows the heat from the bottom of the pot to be transferred upward along the side walls by the phase change of the working fluid, covering the vertical area of ​​the pot body 100. This solves the temperature difference problem of the bottom of the pot being hot and the side walls being cold in traditional cookware, and ensures that the temperature can be maintained uniformly in different height areas from the bottom to the side walls within the pot body 100. This is especially suitable for cooking scenarios that require overall heating, such as stewing and braising, and avoids the situation where the bottom of the food is cooked but the side walls are still not fully cooked.

[0037] In this embodiment, the pot body 100 includes an inner liner 120 and an outer liner 110, with the inner liner 120 fitted into the outer liner 110. The inner liner 120, as the core component directly in contact with food, primarily provides cooking space, directly supports the food, and transfers heat to it. The outer liner 110, as the supporting and protective structure of the inner liner 120, mainly serves to fix the inner liner 120, enhance the overall structural strength of the pot body 100, and reduce heat loss from the pot body 100 to the external environment, thus providing a certain insulation effect and improving energy efficiency. The fitted arrangement of the inner liner 120 and the outer liner 110 ensures a tight fit for heat transfer and provides flexible space for the layout of the heat circulation channel cavities 130, allowing the heat circulation channel cavities 130 in different positions to cooperate and jointly form a complete circulating phase change uniform heating system. Furthermore, in this embodiment, the heat circulation channel cavity 130 is disposed on the outer liner 110. The outer liner 110 can serve as a buffer layer for heat transfer. Heat is first received by the heat source through the outer liner 110, and then the heat is evenly distributed and transferred to the inner liner 120 through the circulation of the working fluid in the heat circulation channel cavity 130, thus avoiding the heat source directly impacting the inner liner 120 and causing local overheating.

[0038] Further, see Figure 3As shown, in this embodiment, the outer liner 110 is provided with multiple heat circulation channel cavities 130. Each heat circulation channel cavity 130 protrudes outward from the inner wall of the outer liner 110, forming the heat circulation channel cavity 130 together with the inner liner 120. Specifically, when the inner liner 120 is fitted into the outer liner 110, the protruding heat circulation channel cavities 130 on the inner wall of the outer liner 110 can naturally fit against the outer wall surface of the inner liner 120, forming a closed heat circulation channel cavity 130. This eliminates the need for additional independent cavity structures, simplifying the overall manufacturing process. The outward protrusion of the heat circulation channel cavity 130 on the outer liner 110 provides sufficient internal space for the heat circulation channel cavity 130, ensuring that the liquid heat-conducting working fluid can flow smoothly within it and complete the phase change cycle. On the other hand, this protruding structure can enhance the structural strength of the outer liner 110 itself, while making the area of ​​the heat circulation channel cavity 130 closer to the external heat source, which facilitates the rapid absorption of heat from the heat source and its transfer to the internal working fluid.

[0039] Furthermore, the cavity structure formed by the heat circulation channel cavity 130 protruding from the inner wall of the outer liner 110 and the inner liner 120 together ensures a tight fit between the inner liner 120 and the outer liner 110, reducing the air gap between them and lowering thermal resistance. This facilitates the efficient transfer of absorbed heat from the outer liner 110 to the working fluid inside the cavity, and also allows for the rapid conduction of heat to the inner liner 120 during the liquefaction and heat release of the working fluid. Ultimately, the heat is transferred to the food through the inner liner 120, achieving efficient heat transfer and uniform distribution from the heat source to the food. This structural design, while ensuring the airtightness of the circulation system, fully utilizes the cooperation between the inner liner 120 and the outer liner 110, organically combining cavity formation with the heat transfer process, thus improving the overall structural synergy and heat utilization efficiency.

[0040] Based on the above design, a covering shell can also be provided on the outer surface of the outer liner 110. The covering shell has a smooth surface and is disposed on the outer surface of the outer liner 110 to cover the heat circulation channel cavity 130. Since the heat circulation channel cavity 130 is formed by protruding outward from the inner wall of the outer liner 110, its protruding part will be exposed on the outer surface of the outer liner 110. By covering the outer surface of the outer liner 110, the covering shell can completely enclose these protruding heat circulation channel cavity 130 structures, preventing the heat circulation channel cavity 130 from being deformed or damaged by external forces such as collision and friction during use. At the same time, it isolates the heat circulation channel cavity 130 from direct contact with water vapor, dust and other impurities in the external environment, preventing corrosion of the outer wall of the heat circulation channel cavity 130, ensuring the structural integrity of the heat circulation channel cavity 130, and thus maintaining the stability of the internal liquid heat transfer fluid circulation. In addition, the smooth structure of the outer shell makes it easy to clean. During use, users can easily wipe away oil and stains on the outside of the pot body 100, improving the convenience of cleaning after use.

[0041] In other embodiments, the heat circulation channel cavity 130 can be disposed on the inner liner 120, or on both the inner liner 120 and the outer liner 110. When the heat circulation channel cavity 130 is disposed on the inner liner 120, the liquid heat-conducting working fluid can be closer to the food heating area, the heat transfer path is shorter, and the food heating demand can be responded to quickly, further improving the temperature uniformity inside the pot body 100. When the heat circulation channel cavity 130 is disposed on both the inner liner 120 and the outer liner 110, the two can form a synergistic heat transfer network: the channel on the outer liner 110 can first uniformly distribute the heat from the heat source, and the channel on the inner liner 120 can then achieve precise uniform heating of the food heating surface. The dual channel design can further optimize the heat distribution effect, while enhancing the stability of the pot body 100 structure and the controllability of heat transfer efficiency.

[0042] When the heat circulation channel cavity 130 is disposed within the inner liner 120, the heat circulation channels are all recessed inward from the outer wall of the inner liner 120, forming the heat circulation channel cavity 130 together with the outer liner 110. The inner surface of the inner liner 120 is provided with a covering shell, the surface of which is smooth. This covering shell is disposed on the inner surface of the inner liner 120 to cover the heat circulation channel cavity 130. Specifically, the smooth surface of the covering shell ensures that food does not easily stick during cooking, facilitating stir-frying and cleaning. It also prevents the unevenness of the inner side of the inner liner 120 caused by the recessed channels from interfering with food processing, ensuring uniform heating of the food.

[0043] In this embodiment, the pot body 100 is also provided with a filling port 140, and multiple hot circulation channel cavities 130 are all connected to the filling port 140. The filling port 140 can be connected to an external liquid working fluid supply device and an external negative pressure generating device through a double-ended diversion pipeline, so as to make the interior of the hot circulation channel cavity 130 a negative pressure environment before filling with the liquid heat-conducting working fluid. The design that multiple hot circulation channel cavities 130 are connected to the filling port 140 ensures that when the negative pressure generating device is working, the air inside all the channel cavities can be uniformly extracted through the filling port 140, so that the entire circulation system forms a closed negative pressure environment. Before filling with the working fluid, the negative pressure environment thoroughly removes air and impurities from the cavity, preventing residual air from creating airlocks that hinder the flow of the working fluid or affecting phase change efficiency due to gas mixing with the working fluid. Simultaneously, the negative pressure environment lowers the boiling point of the liquid heat-conducting working fluid, allowing it to undergo vaporization phase change at a lower temperature. This enhances the working fluid's rapid response to heat from the heat source and improves the overall heat transfer efficiency of the circulation system. Furthermore, after the filling port 140 completes the negative pressure evacuation and working fluid filling, it can be completely sealed to isolate it from the external environment, ensuring that the thermal circulation channel cavity 130 maintains a closed negative pressure state for a long period. This guarantees the stability of the working fluid phase change cycle and enables the uniform heating system to operate continuously and efficiently. This structural design provides crucial preliminary preparation and environmental protection for the functional realization of the thermal circulation channel cavity 130, serving as a key transitional link between system structure and operational performance.

[0044] Furthermore, in different embodiments, the arrangement structure of the multiple interconnected hot circulation channel cavities 130 is one of the following: mesh arrangement structure, honeycomb arrangement structure, leaf vein arrangement structure, and river arrangement structure. This utility model does not impose specific limitations on this.

[0045] It should be noted that the liquid heat-conducting working medium in this embodiment is preferably acetone. In different embodiments, it can also be configured as a water-based solution working medium, a fluorinated working medium, or a hydrocarbon working medium. All such working media meet the core requirements of low boiling point and easy heat conduction. They can be selected according to the specific usage scenario and performance requirements of the cookware to ensure that they can respond quickly to heat changes under different working conditions and efficiently complete the cycle of vaporization heat absorption and liquefaction heat release, providing stable support for the uniform heating function of the heat circulation channel cavity 130.

[0046] In this embodiment, the method for preparing the above-mentioned self-circulating phase change uniform heating pot includes: Step S1: Prepare multiple hot circulation flow channel cavities 130 on the pot body 100; Furthermore, in this embodiment, step S1 specifically includes: Step S11: Prepare the inner liner 120 of the pot body 100. The method for preparing the inner liner 120 includes one or more of stamping, casting or machining. Step S12: Prepare the outer liner 110 of the pot body 100 according to the shape of the inner liner 120, and prepare a plurality of interconnected hot circulation channels on the outer liner 110. The method for preparing the hot circulation channels includes one or more of rolling, engraving, etching or blowing. Step S13: Connect the inner liner 120 and the outer liner 110 so that the multiple heat circulation channels and the inner liner 120 together form multiple interconnected heat circulation channel cavities 130, wherein the connection method between the inner liner 120 and the outer liner 110 includes one or more of welding, hot pressing or adhesive bonding.

[0047] Step S2: After vacuuming the multiple thermal circulation channel cavities 130, liquid thermally conductive working fluid is filled into the multiple thermal circulation channel cavities 130 with negative internal pressure. Furthermore, in this embodiment, step S2 specifically includes: Step S21: Prepare a filling port 140 on the pot body 100 that communicates with the plurality of hot circulation channel cavities 130, and connect the filling port 140 to an external vacuum generator and a working fluid supply device respectively. Step S22: The external vacuum generator performs vacuuming on the multiple thermal circulation channel cavities 130 through the filling port 140; Step S23: The external working fluid supply device supplies liquid heat-conducting working fluid to the multiple thermal circulation channel cavities 130 through the filling port 140.

[0048] Step S3: Seal the thermal circulation channel cavity 130 to obtain a self-circulating phase change uniform heating pot. Further, in this embodiment, step S3 specifically includes: sealing the thermal circulation channel cavity 130 by one or more of welding, hot pressing, or adhesive bonding to obtain a self-circulating phase change uniform heating pot.

[0049] Example 2:

[0050] This embodiment provides a heating container, which includes the self-circulating phase change uniform heating pot described in Embodiment 1.

[0051] In summary, the self-circulating phase change uniform heating pot described in this embodiment provides a circulating phase change space for the liquid heat-conducting working fluid through multiple specially designed heat circulation channels 130 on the pot body 100. When heated, the liquid heat-conducting working fluid at the heat source absorbs heat and rapidly vaporizes, moving along the channels to liquefy and release heat at a location away from the heat source, achieving rapid heat transfer and diffusion. Based on this, the uniform heating pot not only possesses excellent heat uniformity performance, quickly and evenly transferring concentrated heat to all areas of the pot body 100, significantly reducing temperature differences and fundamentally avoiding uneven heating of food to improve cooking quality, but also greatly improves heat transfer efficiency by utilizing the phase change heat absorption and release characteristics of the working fluid. Compared to traditional metal heat conduction methods, it transfers heat faster, shortening the preheating time of the pot body and improving energy efficiency to reduce waste. It is also highly versatile, flexibly adapting to different heating containers such as woks and soup pots, and is compatible with various heating methods such as open flame, electromagnetic, and electric heating, making it suitable for a wide range of scenarios and highly practical. In terms of safety and user comfort, the rapid heat diffusion shortens the duration of localized high temperatures in the pot body, reducing the risk of deformation and damage caused by prolonged localized high temperatures, and reducing the amount of oil fumes generated by overheating to improve the cooking environment, thereby enhancing user safety and comfort and providing users with a superior cooking experience.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A self-circulating phase change uniform heating pot, characterized in that: include: The pot body has multiple heat circulation channels arranged in the heat-conducting area. These multiple heat circulation channels are interconnected and isolated from the external environment. The heat circulation channels are filled with a liquid heat-conducting working fluid. When heated, the liquid heat-conducting working fluid forms a circulating phase change uniform heating system inside the multiple heat circulation channels.

2. The self-circulating phase change uniform heating pot according to claim 1, characterized in that: The pot body is also provided with a docking part, and multiple hot circulation channel cavities are connected to the docking part. The docking part is externally connected to a negative pressure generating device to make the interior of the hot circulation channel cavity a negative pressure environment before the liquid heat-conducting working fluid is filled.

3. The self-circulating phase change uniform heating pot according to claim 1, characterized in that: The pot body includes an inner liner and an outer liner, the inner liner being fitted into the outer liner, and the hot circulation channel cavity being disposed on the inner liner and / or the outer liner.

4. The self-circulating phase change uniform heating pot according to claim 3, characterized in that: The outer liner is provided with multiple heat circulation channels, all of which protrude outward from the inner wall of the outer liner to form the heat circulation channel cavity together with the inner liner.

5. The self-circulating phase change uniform heating pot according to claim 4, characterized in that: The outer surface of the outer liner is provided with a covering shell, the surface of which is a smooth structure, and it is disposed on the outer surface of the outer liner to cover the heat circulation channel cavity.

6. The self-circulating phase change uniform heating pot according to claim 3, characterized in that: The inner liner is provided with multiple heat circulation channels, each of which is recessed inward from the outer wall of the inner liner to form the heat circulation channel cavity together with the outer liner. The inner surface of the inner liner is provided with a covering shell, which has a smooth surface and is disposed on the inner surface of the inner liner to cover the heat circulation channel cavity.

7. The self-circulating phase change uniform heating pot according to claim 1, characterized in that: The pot body includes a pot bottom, side walls and an outer edge. One end of the side wall is arranged around the pot bottom and the other end is connected to the outer edge. Multiple hot circulation channels are arranged on the pot bottom and at least part of the side walls.

8. The self-circulating phase change uniform heating pot according to claim 1, characterized in that: The arrangement structure of the multiple interconnected thermal circulation channels is one of the following: mesh structure, honeycomb structure, leaf vein structure, and river-like structure.

9. A heating container, characterized in that: The self-circulating phase change uniform heating pot is described in any one of claims 1 to 8.

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