Air-cooled structure and pressure cooker

Abstract

The present application relates to the technical field of cooking utensils, in particular to a wind cooling structure and a pressure cooker. The wind cooling structure comprises: an air duct; a fan arranged at a first end of the air duct; and a heat sink assembly arranged at a second end of the air duct and in communication with the fan via the air duct, the heat sink assembly being adapted to be in contact with a structure to be cooled; the first end of the air duct is provided with an air inlet or an air outlet, and the second end of the air duct is provided with an air outlet or an air inlet; the circumferential edge of the heat sink assembly is formed with an air inlet end or an air outlet end, and the middle region of the heat sink assembly is formed with an air outlet end or an air inlet end, and the air inlet end and the air outlet end are in communication through a heat dissipation channel. The wind cooling structure provided by the present application allows cold air to enter from the lower end and hot air to blow out from the upper end, which conforms to the law that cold air is below and hot air is above in nature, achieves the purpose of separating cold air and hot air, and ensures that the temperature of the inhaled air is always at a relatively low temperature during use, thereby improving the cooling efficiency.

Description

Technical Field

[0001] This invention relates to the field of cooking appliance technology, specifically to a wind-cooled structure and a pressure cooker. Background Technology

[0002] Pressure cookers have become indispensable cooking appliances in today's fast-paced lifestyle. They typically feature rapid cooking functions, increasing cooking temperature and shortening cooking time by sealing and pressurizing food. However, after cooking, the pressure inside the pot exceeds atmospheric pressure, preventing users from immediately opening the lid, especially for soups, liquids, or viscous foods. Because the pressure cannot be released directly for rapid cooling, natural cooling takes a considerable amount of time. For example, cooking porridge takes about 35 minutes, while the natural cooling time for an electric pressure cooker can be as long as 25 minutes, resulting in a poor user experience. If the pressure is forcibly released while cooking porridge or viscous foods, the overheated water and food inside the pot can cause a "boiling over" phenomenon, rapidly vaporizing and producing numerous bubbles. In viscous liquids, these bubbles are difficult to break, carrying food out of the pot, causing spillage, contamination, and even burns.

[0003] In addition, when pressure cooking some foods, the pressure cooker calculates the pressure cooking time but does not take into account the additional cooking time caused by the pressure reduction process of the rice cooker. Therefore, the actual pressure cooking time of the food is longer, and the food that the user can eat will differ from the set cooking time. The slow pressure release of the pressure cooker also affects the taste of the food. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the long natural cooling time of pressure cookers in the prior art, thereby providing an air-cooled structure that can achieve rapid cooling.

[0005] Another technical problem that this invention aims to solve is to overcome the defect of the long natural cooling time of pressure cookers in the prior art, thereby providing a pressure cooker that can cool down quickly.

[0006] To solve the above-mentioned technical problems, the present invention provides an air-cooled structure, comprising:

[0007] Air duct;

[0008] A fan is installed at the first end of the air duct; and

[0009] A heat sink assembly is disposed at the second end of the air duct and is connected to the fan via the air duct. The heat sink assembly is adapted to contact the structure to be cooled.

[0010] The first end of the air duct is provided with an air inlet or an air outlet, and the second end of the air duct is provided with an air outlet or an air inlet.

[0011] The heat sink assembly has an air inlet or an air outlet formed on its circumferential edge, and an air outlet or an air inlet formed in the central region of the heat sink assembly. The air inlet and the air outlet are connected by a heat dissipation channel.

[0012] Optionally, the heat sink assembly is configured as a ring or C-shaped structure.

[0013] Optionally, the air duct includes an air duct distribution section, and the heat sink assembly is disposed within the air duct distribution section.

[0014] Optionally, an air passage is provided between the outer edge of the heat sink assembly and the inner edge of the air duct distribution portion, and the air passage is connected to the heat dissipation channel.

[0015] Optionally, the air duct further includes an air duct guide, which is adapted to connect the fan to the air duct distribution section.

[0016] Optionally, the air duct guide is adapted to guide airflow into the air duct dispersion section in at least two directions.

[0017] Optionally, the air duct is adapted to guide the airflow sequentially through the air inlet, the air duct guide, the air passage, the heat dissipation passage, and the air outlet, or sequentially through the air inlet, the air duct guide, the heat dissipation passage, the air passage, and the air outlet.

[0018] Optionally, the heat dissipation channel between the air inlet and the air outlet is a straight channel.

[0019] Optionally, the heat sink assembly is formed by joining at least two heat sinks, and a heat dissipation channel is formed between the two heat sinks.

[0020] Optionally, the heat sink includes:

[0021] Base plate;

[0022] Support ribs extend from the surface of the base plate in a direction away from the base plate; and

[0023] A first assembly and a second assembly, wherein the first assembly or the second assembly is adapted to be snap-fitted to a second assembly or the first assembly on another adjacent heat sink.

[0024] Optionally, the edge of the supporting rib away from the base plate is set at an angle A with the base plate, where A > 0°.

[0025] Optionally, the edge of the supporting rib away from the base plate is set at an angle A with the base plate, where A = 3°; the heat sink assembly is formed by sequentially splicing 120 heat sinks to form a ring.

[0026] The pressure cooker provided by this invention includes:

[0027] pot body;

[0028] The lid of the pot is movably connected to the pot body via a hinge shaft; and

[0029] As described above, it features an air-cooled structure.

[0030] Optionally, the pressure cooker further includes:

[0031] The inner cover, wherein the heat sink assembly is disposed inside the pot lid and is in contact with the inner cover.

[0032] Optionally, the air inlet is located on the side of the pot body; the air outlet is located above the pot lid, and the air inlet and the air outlet are respectively located at both ends of the air duct.

[0033] Optionally, at least a portion of the air duct is formed with an air duct guide, which extends from the side of the pot body toward the top surface of the inner lid.

[0034] Optionally, the air duct guide is arranged in an arc shape.

[0035] Optionally, the number of hinge shafts is two, and the two hinge shafts are respectively disposed on opposite sides of the outside of the air duct guide.

[0036] The technical solution of this invention has the following advantages:

[0037] 1. The air-cooled structure provided by the present invention, by contacting the heat sink assembly with the structure to be cooled, and by connecting the fan and the heat sink assembly through the air duct, allows the fan to blow air from the air inlet to the air outlet, passing through the heat sink assembly and thus cooling the heat sink assembly; and by setting the air inlet at the lower end relative to the air outlet along the direction of gravity, cold air enters from the lower end and hot air is blown out from the upper end, which conforms to the natural law that cold air is at the bottom and hot air is at the top, achieving the purpose of separating cold and hot air, ensuring that the temperature of the intake air is always at a lower temperature during use, and improving cooling efficiency.

[0038] 2. The air-cooled structure provided by the present invention forms an air inlet end at the circumferential edge of the heat sink assembly and an air outlet end in the central region of the heat sink assembly, thereby making the air inlet area more dispersed, increasing the air intake volume, and thus increasing the heat dissipation effect.

[0039] 3. The air-cooled structure provided by the present invention adopts a ring structure or a C-shaped structure, with the air inlet or air outlet located at the circumferential edge of the heat sink assembly, and the air outlet or air inlet located in the middle area of ​​the heat sink assembly. The air inlet and the air outlet are connected by a heat dissipation channel, so that all heat dissipation channels on the heat sink assembly have the same length, ensuring uniform heat dissipation, avoiding local overheating, and improving the heat dissipation effect.

[0040] 4. The air-cooled structure provided by the present invention, by setting the heat sink assembly in the air duct dispersion part and matching the shape of the air duct dispersion part with the shape of the heat sink assembly, disperses air to the circumference of the heat sink assembly, ensuring the circumferential air intake or exhaust of the heat sink assembly, making the air dispersion area larger, which is more conducive to air intake or exhaust and ensures the air intake or exhaust effect.

[0041] 5. The air-cooled structure provided by the present invention, by setting an air duct guide and connecting the fan to the air duct distribution part, blows the air driven by the fan toward the air duct distribution part, thereby playing a guiding role.

[0042] 6. The air-cooled structure provided by the present invention, by setting the air duct guide in an arc shape, can change the air direction, improve the selectivity of the setting direction of the air inlet and air outlet, make reasonable use of space, and is more suitable for cooperation with the structure to be cooled.

[0043] 7. The pressure cooker provided by this invention solves the problem of rapid cooling and pressure release when opening the lid by adopting an air-cooling structure, thereby improving the user experience. At the same time, it can shorten the opening time by rapidly releasing pressure, reducing the actual pressure of the food and the lengthening of the cooking time, shortening the gap between the actual cooking time and the set cooking time, further ensuring the consistency of the cooked taste and avoiding affecting the taste.

[0044] 8. The pressure cooker provided by the present invention sets the air inlet on the side of the cooker body and the air outlet on the top of the cooker lid, so that the cold air inlet is located on the side of the cooker body and the hot air outlet is located on the top lid, thereby blowing hot air upward, which conforms to the natural law that cold air is at the bottom and hot air is at the top, achieving the purpose of separating cold and hot air, ensuring that the temperature of the air drawn in during use is always at a low temperature, and improving cooling efficiency. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1 This is a cross-sectional schematic diagram of the pressure cooker of the present invention;

[0047] Figure 2 This is a top view of the pressure cooker of the present invention;

[0048] Figure 3 This is a three-dimensional schematic diagram of the pressure cooker of the present invention;

[0049] Figure 4 This is a schematic diagram of the air-cooling structure of the present invention;

[0050] Figure 5 This is a top view of the air-cooled structure of the present invention;

[0051] Figure 6 This is a front view of the air-cooled structure of the present invention;

[0052] Figure 7 This is a left view of the air-cooled structure of the present invention;

[0053] Figure 8 This is a schematic diagram of the heat sink of the present invention;

[0054] Figure 9 A schematic diagram of multiple heat sink units combined. Figure 1 ;

[0055] Figure 10 A schematic diagram of multiple heat sink units combined. Figure 2 ;

[0056] Figure 11 This is a schematic diagram of the first side of a single heatsink unit;

[0057] Figure 12 This is a schematic diagram of the second side of a single heatsink unit;

[0058] Figure 13 This is a side view of a single heatsink unit;

[0059] Figure 14 This is a schematic diagram of the deformation state of the heat sink of the present invention.

[0060] Explanation of reference numerals in the attached figures:

[0061] 10-Cooker body, 20-Cooker lid, 21-Air vent, 22-Inner lid;

[0062] 30-Air-cooled structure, 31-Fan, 32-Air duct, 321-Air duct guide, 322-Air duct distribution, 3221-Air passage, 323-Air inlet, 33-Heat sink assembly, 331-Air inlet end, 332-Air outlet end, 34-Hinge shaft;

[0063] 40-Heat sink, 41-Support rib, 42-First assembly, 43-Second assembly, 44-Extension, 45-Base plate, 46-Assembly step. Detailed Implementation

[0064] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0067] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0068] Example 1

[0069] Combination Figures 1-14 As shown, the air-cooled structure provided in this embodiment includes:

[0070] Air duct 32;

[0071] Fan 31 is disposed at the first end of the air duct 32; and

[0072] A heat sink assembly 33 is disposed at the second end of the air duct 32 and is connected to the fan 31 via the air duct 32. The heat sink assembly 33 is adapted to contact the structure to be cooled.

[0073] The first end and the second end of the air duct 32 are respectively provided with an air inlet 323 and an air outlet 21, and the second end of the air duct 32 is provided with an air outlet 21 or an air inlet 323.

[0074] The heat sink assembly 33 has an air inlet end 331 or an air outlet end 332 formed on its circumferential edge, and an air outlet end 332 or an air inlet end 331 formed in the middle region of the heat sink assembly 33. The air inlet end 331 and the air outlet end 332 are connected by a heat dissipation channel.

[0075] The air-cooled structure provided in this embodiment contacts the heat sink assembly 33 with the structure to be cooled, and connects the fan 31 and the heat sink assembly 33 through the air duct 32. As the fan 31 blows air from the air inlet 323 to the air outlet 21, the air passes through the heat sink assembly 33, thereby cooling the heat sink assembly 33. Furthermore, the air inlet 323 is positioned at the lower end of the air outlet 21 along the direction of gravity, so that cold air enters from the lower end and hot air is blown out from the upper end, which conforms to the natural law that cold air is at the bottom and hot air is at the top, achieving the purpose of separating cold and hot air. This ensures that the temperature of the intake air remains at a low temperature during use, thereby improving cooling efficiency.

[0076] Preferably, the air-cooled structure provided in this embodiment can be applied to a pressure cooker, thereby improving the heat dissipation efficiency of the pressure cooker and accelerating pressure release. In the application environment of the pressure cooker, the side of the heat sink assembly 33 is tightly fitted to the upper cover substrate of the pressure cooker, that is, the heat sink support rib 41 is fitted to the inner cover 22 of the pressure cooker, and the heat inside the pressure cooker is ensured to be guided to the heat sink assembly 33 through the inner cover 22 by means of brazing or applying thermal grease, thereby improving the heat dissipation efficiency of the pressure cooker.

[0077] Preferably, the air inlet 323 is located at the lower end of the air outlet 21 along the direction of gravity.

[0078] Preferably, in this embodiment, the heat sink assembly 33 has an air inlet end 331 formed at its circumferential edge and an air outlet end 332 formed in its central region.

[0079] The air-cooled structure provided in this embodiment has an air inlet end 331 formed on the circumferential edge of the heat sink assembly 33 and an air outlet end 332 formed in the middle region of the heat sink assembly 33, thereby making the air inlet area more dispersed, increasing the air intake volume, and thus increasing the heat dissipation effect.

[0080] Preferably, the heat sink assembly 33 has an air inlet end 331 or an air outlet end 332 formed on its circumferential edge, and an air outlet end 332 or an air inlet end 331 formed in the central region. Compared with the method of air inlet on one side and air outlet on the other side, when the air passage area of ​​the heat sink is the same, the air guide path of the heat sink assembly 33 can be shortened, the heat dissipation effect can be improved, and the excessively high end temperature caused by the excessively long air guide path can be avoided, thereby improving the heat dissipation efficiency.

[0081] Specifically, the heat sink assembly 33 is configured as a ring or C-shaped structure.

[0082] Preferably, the lengths of the air inlet end 331 or air outlet end 332 formed at the circumferential edge of the heat sink assembly 33 to the air outlet end 332 or air inlet end 331 in the middle region are all the same, ensuring that the length of the heat dissipation channel is consistent. In this case, the air outlet end 332 or air inlet end 331 located in the middle region is formed by the annular heat sink assembly 33 passing through the central axis.

[0083] The air-cooled structure provided in this embodiment adopts a ring-shaped or C-shaped structure, with the air inlet 331 or air outlet 332 located at the circumferential edge of the heat sink assembly 33, and the air outlet 332 or air inlet 331 located in the middle region of the heat sink assembly 33. The air inlet 331 and the air outlet 332 are connected by a heat dissipation channel, so that the length of each heat dissipation channel on the heat sink assembly 33 is the same, ensuring uniform heat dissipation, avoiding local overheating, and improving the heat dissipation effect.

[0084] Preferably, when the heat sink assembly 33 is constructed in a ring shape, a space is left at the center of the ring. This area is suitable for external components to pass through. For example, when the heat sink assembly 33 is installed in conjunction with the pressure cooker, the center position is suitable for the pressure control components of the pressure cooker to pass through, such as pressure valves, exhaust valves, float valves, sensors, and other components.

[0085] As a variation, when the heat sink assembly 33 is constructed in a C-shape, a space is left at the middle position or the notch position of the C-shape. This area is suitable for external components to pass through. For example, when the heat sink assembly 33 is installed in conjunction with a pressure cooker, the center position is suitable for the pressure control components of the pressure cooker to pass through, such as pressure valves, exhaust valves, float valves, sensors, and other components.

[0086] Specifically, the air duct 32 includes an air duct dispersion section 322, the heat sink assembly 33 is disposed in the air duct dispersion section 322, and the shape of the air duct dispersion section 322 matches the shape of the heat sink assembly 33.

[0087] Preferably, the air duct dispersion portion 322 is formed by a local space of the air duct 32, and is preferably constructed as a cavity structure, with the heat sink assembly 33 disposed inside the cavity of the air duct dispersion portion 322.

[0088] The air-cooled structure provided in this embodiment disperses air to the circumference of the heat sink assembly 33 by placing the heat sink assembly 33 within the air duct dispersion portion 322 and matching the shape of the air duct dispersion portion 322 with the shape of the heat sink assembly 33. This ensures that the heat sink assembly 33 can have circumferential air intake or exhaust, resulting in a larger air dispersion area, which is more conducive to air intake or exhaust and ensures the air intake or exhaust effect.

[0089] Specifically, an air passage 3221 is provided between the outer edge of the heat sink assembly 33 and the inner edge of the air duct distribution portion 322, and the air passage 3221 is connected to the heat dissipation channel.

[0090] The heat sink assembly 33 is considered as a whole, and a cavity is formed between the outer edge of the heat sink assembly 33 and the inner edge of the air duct dispersion portion 322. This cavity is the air passage 3221.

[0091] Specifically, the air duct 32 further includes an air duct guide 321, which is adapted to connect the fan 31 with the air duct distribution section 322.

[0092] The air-cooled structure provided in this embodiment provides an air duct guide section 321 and connects the fan 31 with the air duct distribution section 322, thereby blowing the air drawn by the fan 31 toward the air duct distribution section 322, which plays a guiding role.

[0093] Specifically, the air duct guide 321 is adapted to guide airflow into the air duct dispersion 322 in at least two directions.

[0094] By guiding the airflow into the airflow dispersion section 322 in at least two directions through the airflow guide section 321, the airflow blown from the airflow guide section 321 is divided into multiple streams, increasing the contact area with the heat sink assembly 33 and improving the utilization rate of the cold air; and shortening the airflow path length of a single side airflow channel, avoiding the reduction of heat dissipation effect caused by excessively high airflow temperature at the end of the airflow channel.

[0095] Preferably, in this embodiment, the air passage 3221 is formed by the air duct guide 321 extending to at least both sides, and the ends of the at least two sides are connected to each other.

[0096] By extending the air passage 3221 from the air duct guide 321 to at least both sides, the dispersion area of ​​the cold air is increased, the air blown from the air duct guide 321 is divided into multiple streams, the contact area with the heat sink assembly 33 is increased, and the utilization rate of the cold air is improved; and the air guide path length of the air passage 3221 on one side is shortened, so as to avoid the airflow temperature at the end of the air duct being too high, which would reduce the heat dissipation effect.

[0097] Specifically, in combination Figure 5 As indicated by the arrow, the air duct 32 is adapted to guide airflow sequentially through the air inlet 323, the air duct guide 321, the air passage 3221, the heat dissipation passage, and the air outlet 21, or sequentially through the air inlet 323, the air duct guide 321, the heat dissipation passage, the air passage 3221, and the air outlet 21. By allowing the airflow to enter uniformly through the air inlet 323 and be guided by the air duct guide 321 to flow into the air passage 3221, and by allowing the airflow to circulate once within the air passage 3221, and gradually enter the heat dissipation passage during the flow, the airflow is more evenly dispersed, increasing the contact area between the heat sink assembly 33 and the airflow, increasing the air passage area, improving the heat dissipation efficiency, and finally allowing the hot air to be uniformly discharged from the air outlet 21, forming a complete cycle.

[0098] Specifically, the heat dissipation channel between the air inlet 331 and the air outlet 332 is a straight channel. By setting the heat dissipation channel between the air inlet 331 and the air outlet 332 as a straight channel, the distance between the air inlet 331 and the air outlet 332 is shortened, thereby improving the heat dissipation effect.

[0099] Specifically, the air duct guide 321 is arc-shaped, so that the airflow directions at both ends of the air duct guide 321 are angled.

[0100] The air-cooled structure provided in this embodiment, by setting the air duct guide 321 in an arc shape, sets the airflow direction at both ends of the air duct guide 321 at an angle, thereby changing the airflow direction, improving the selectivity of the setting direction of the air inlet 323 and the air outlet 21, making reasonable use of space, and is more suitable for cooperation with the structure to be cooled.

[0101] Specifically, the heat sink assembly 33 is formed by assembling at least two heat sinks 40, and a heat dissipation channel is formed between the two heat sinks.

[0102] Specifically, the heat sink 40 includes:

[0103] Base plate 45;

[0104] Support rib 41 extends from the surface of the base plate 45 in a direction away from the base plate 45; and

[0105] A first fitting 42 and a second fitting 43, wherein the first fitting 42 or the second fitting 43 is adapted to be snap-fitted to another second fitting 43 or the first fitting 42 on an adjacent heat sink.

[0106] Specifically, the edge of the support rib 41 on the side away from the base plate 45 is set at an angle A with the base plate 45, where A > 0°.

[0107] Specifically, the edge of the supporting rib 41 on the side away from the base plate 45 is set at an angle A with the base plate 45, where A = 3°; the heat sink assembly 33 is formed by sequentially splicing 120 heat sinks 40 to form a ring.

[0108] Example 2

[0109] Combination Figures 1-3 As shown, this embodiment provides a pressure cooker, including:

[0110] Clay pot 10;

[0111] The lid 20 is movably connected to the pot body 10 via a hinge shaft 34; and

[0112] As described above, it features an air-cooled structure.

[0113] The pressure cooker provided in this embodiment solves the problem of rapid cooling and pressure release when opening the lid by adopting an air-cooling structure, thereby improving the user experience. At the same time, it can shorten the time to open the lid by quickly releasing pressure, reducing the situation where the actual pressure of the food increases and the cooking time is extended. This shortens the gap between the actual cooking time and the set cooking time, further ensuring the consistency of the cooked taste and avoiding affecting the taste.

[0114] Preferably, the pressure cooker is equipped with a wind-cooling structure, which can quickly release pressure and reduce the environmental pollution or even burns caused by users releasing pressure themselves.

[0115] Specifically, the pressure cooker also includes:

[0116] The inner cover 22, the heat sink assembly 33 is disposed inside the pot lid 20 and is in contact with the inner cover 22.

[0117] Preferably, the heat sink assembly 33 is disposed in contact with the inner cover 22, and the heat inside the pressure cooker is guided to the heat sink assembly 33 through the inner cover 22 by means of brazing or applying thermal grease, thereby improving the heat dissipation efficiency of the pressure cooker.

[0118] Specifically, the air inlet 323 is located on the side of the pot body 10; the air outlet 21 is located above the pot lid 20, and the air inlet 323 and the air outlet 21 are respectively located at both ends of the air duct 32.

[0119] Specifically, at least a portion of the air duct 32 is provided with an air duct guide 321, which extends from the side of the pot body 10 toward the top surface of the inner cover 22.

[0120] Specifically, the air duct guide 321 is arranged in an arc shape.

[0121] Specifically, the direction of the airflow flowing in through the air inlet 323 is set at an angle to the direction of the airflow flowing out through the air outlet 21.

[0122] The pressure cooker provided in this embodiment has its air inlet 323 located on the side of the cooker body 10, and its air outlet 21 located above the cooker lid 20. This arrangement allows the cold air inlet to be located on the side of the cooker body and the hot air outlet to be located on the top lid. Cold air enters through the air inlet and is guided upwards through the air duct guide 321 to the air duct dispersion section 322. Within the air duct dispersion section 322, the cold air flows along the air passage 3221 between the outer edge of the heat sink assembly and the inner edge of the air duct dispersion section, and gradually flows into the multiple heat sinks of the heat sink assembly. The heat dissipation channels formed between the fins carry away the heat from the heat sinks, creating an airflow pattern where air enters from the circumferential edge of the heat sink assembly and exits from the central area of ​​the assembly. Finally, the hot air, gradually heated from the cold air, is discharged from the outlet at the end of the air duct. This achieves an airflow path where cold air enters from the bottom and hot air rises, conforming to the natural law that cold air is at the bottom and hot air at the top, thus separating the cold and hot air and ensuring that the intake air temperature remains low during use, improving cooling efficiency.

[0123] In this embodiment, the pot body 10 and the pot lid 20 are movably connected by a hinge shaft 34. Preferably, there are two hinge shafts 34, which are respectively arranged on the outside of the air duct guide 321. This avoids interference with the setting position of the air duct guide 321 when the hinge shaft 34 is a long shaft, facilitates the arrangement of the air duct guide 321, does not occupy the space of the air duct guide 321, and improves the utilization rate.

[0124] Additionally, the sensors, solenoid valves, etc. on the lid 20 are routed to both sides of the air duct guide 321.

[0125] Compared to pressure cookers that use water cooling for pressure relief, this solution eliminates the need for users to add water for cooling, thus reducing additional operations such as adding water, draining wastewater from the water tank, or cleaning, further enhancing the user experience.

[0126] Additionally, the air outlet 21 is equipped with an insect-proof structure. By adding an air damper to the air outlet 21, the damper is made of memory metal. At a certain temperature, such as above 60°C, the spring becomes harder and stronger, and the spring force lifts the damper. Below 60°C, the memory spring softens and the damper closes, thereby preventing crawling insects from entering. The damper automatically opens after the temperature rises.

[0127] Preferably, the heat sink assembly 33 is formed by stamping or other methods to form a side-ventilated heat dissipation air cooling channel. The structure of the heat sink assembly 33 can be in various ways, among which the preferred method is to use a heat sink assembly 33 composed of individual heat sinks, corrugated heat dissipation fins, etc. The individual heat sinks are elastically assembled at both ends to form a ring or a certain angle ring heat sink assembly 33 to increase the heat dissipation area with air cooling and improve the heat dissipation capacity.

[0128] Since heat sinks are generally made of relatively thin metal materials such as aluminum sheets through stamping and forming processes, using individual heat sinks can improve material utilization and meet the forming process requirements. In addition, individual heat sinks can be combined to form heat sink assembly 33, saving costs and avoiding waste.

[0129] Example 3

[0130] Combination Figures 8-13 As shown, the heat sink provided in this embodiment includes:

[0131] Base plate 45;

[0132] The supporting rib 41 extends from the surface of the base plate 45 in a direction away from the base plate 45;

[0133] A first fitting 42 and a second fitting 43, wherein the first fitting 42 or the second fitting 43 is adapted to be snap-fitted to another second fitting 43 or the first fitting 42 on an adjacent heat sink.

[0134] By setting a first assembly 42 and a second assembly 43 on the heat sink, and allowing adjacent heat sinks to be assembled through the first assembly 42 and the second assembly 43, the heat sinks can be combined, facilitating the mass production and assembly of the heat sinks. Furthermore, since multiple heat sinks have identical structures, there is no need to find suitable assemblies during assembly, thus accelerating assembly efficiency and simplifying operations.

[0135] The heat sink provided in this embodiment can increase the heat dissipation area, reduce the forced air cooling resistance, and further increase the heat dissipation. Moreover, the heat sink can be assembled by connecting the ends of the heat sink, which facilitates the formation of air cooling channels and reduces the processing difficulty of the integral heat sink.

[0136] Preferably, the heat sink can be formed by stamping sheet metal.

[0137] The heat sink is preferably made of aluminum, but other metals such as iron and copper, or thermally conductive plastics can also be selected.

[0138] Preferably, the base plate 45 is configured as the bottom surface of the heat sink, and a support rib 41 is provided on the base plate 45, such that the support rib 41 extends from the surface of the base plate 45 in a direction away from the base plate 45. When there are two support ribs 41, the heat sink is configured as a roughly U-shaped structure.

[0139] Specifically, the base plate 45 extends toward the same side to form at least two of the supporting ribs 41.

[0140] The heat sink provided in this embodiment has at least two supporting ribs 41 extending from the base plate 45 to the same side. When two adjacent heat sinks are assembled, the supporting ribs 41 can separate the base plate 45. After the two adjacent heat sinks are assembled, a heat dissipation channel can be formed between the two adjacent base plates 45 to facilitate ventilation. The overall structure is hollow, which increases the contact area between the cold air and the heat sink.

[0141] Specifically, the two supporting ribs 41 are respectively located at the two side edges of the base plate 45 along the width direction.

[0142] The heat sink provided in this embodiment, by setting two supporting ribs 41 respectively at the two sides of the bottom plate 45 along the width direction, allows the supporting ribs 41 to be connected to form a planar state after multiple heat sinks are assembled, which facilitates contact with external objects to be cooled, increases the ways in which the heat sink can be used, and eliminates the need to rely solely on the bottom plate 45 to contact external objects to be cooled.

[0143] Specifically, the support rib 41 is perpendicular to the base plate 45. This vertical arrangement facilitates increasing the spacing between adjacent heat sinks, ensuring effective heat dissipation. Compared to an inclined arrangement, the same spacing can be achieved using the shortest support rib 41; it also reduces assembly difficulty and facilitates connection.

[0144] Preferably, the height of the support rib 41 of the heat sink is in the range of 2.5mm-6mm. Considering the heat dissipation efficiency and the difficulty of metal stamping, it avoids the situation where the cooling airflow channel is too small when the size is too small, thus reducing wind resistance. At the same time, it avoids the situation where the size is too large, thus avoiding the waste of cold air and ensuring heat dissipation efficiency. In addition, if the height of the support rib 41 is too small, it will also increase the difficulty of stamping and bending, which is not conducive to production.

[0145] Specifically, the base plate 45 also has an assembly step 46, which is adapted to abut against the support rib 41 on another adjacent heat sink.

[0146] Preferably, the assembly step 46 is disposed on the base plate 45 and located on the opposite side of the extending direction of the support rib 41.

[0147] Since the heat sink is made by stamping, springback and other problems will occur after the metal material of the heat sink is stamped. Without the assembly step 46, the two adjacent heat sinks will be misaligned after assembly, which will easily loosen and cause abnormal noise under the wind. In addition, the adjacent support ribs 41 will not fit tightly with the external object to be cooled, resulting in poor heat dissipation effect.

[0148] The heat sink provided in this embodiment, by further providing an assembly step 46 on the base plate 45, and making the assembly step 46 suitable for abutting and connecting with the support rib 41 on another adjacent heat sink, ensures a firm connection between adjacent heat sinks and reduces the springback phenomenon after metal material is stamped and formed, so that the adjacent support ribs 41 are located on the same plane, improving the tightness of contact with the external object to be cooled, thereby facilitating rapid heat dissipation and reducing thermal resistance problems caused by poor contact.

[0149] Furthermore, when assembling two adjacent heat sinks, the assembly step 46 can be quickly positioned by cooperating with the support rib 41, reducing alignment time and improving assembly efficiency.

[0150] Specifically, the first assembly 42 is located at the edge of the support rib 41 near the bottom plate 45 and is connected to the assembly step 46; the second assembly 43 is located at the edge of the support rib 41 away from the bottom plate 45.

[0151] Preferably, one of the first assembly 42 and the second assembly 43 is a buckle and the other is a slot. The first assembly 42 and the second assembly 43 are assembled and connected by the cooperation of the slot and the buckle, thereby realizing the connection of the two adjacent heat sinks.

[0152] By providing a first fitting 42 and a second fitting 43 on the sides of the support rib 41 near and away from the base plate 45 respectively, it is convenient for the adjacent heat sinks to be plugged in and matched, and it is also convenient for the first fitting rib 41 and the second fitting 43 to fit tightly with the assembly step 46 when they are in contact with the assembly step 46.

[0153] Preferably, the heat sink is provided with multiple sets of the first assembly 42 and the second assembly 43, preferably two or four sets.

[0154] Specifically, the heat sink also has an extension 44, which extends from at least a portion of the support rib 41.

[0155] The heat sink provided in this embodiment further increases the airflow area and improves heat dissipation efficiency by forming an extension portion 44 on the heat sink.

[0156] Specifically, the extension 44 is arranged parallel to the base plate 45.

[0157] By extending the extension 44 from at least a portion of the support rib 41 and arranging it parallel to the base plate 45, interference of the extension 44 with adjacent heat sinks during assembly is avoided.

[0158] Specifically, the two support ribs 41 arranged opposite to each other on the heat sink each extend at least one extension portion 44, and the extension portions 44 on the two support ribs 41 arranged opposite to each other extend in opposite directions.

[0159] Preferably, the extensions 44 on the two opposing support ribs 41 extend in opposite directions and abut against each other.

[0160] Specifically, the edge of the support rib 41 on the side away from the base plate 45 is set at an angle A with the base plate 45, where A > 0°.

[0161] Specifically, the included angle A = 3°.

[0162] By varying the height of the support rib 41 along the length of the base plate 45, the support rib 41 forms an inclined structure relative to the base plate 45, thereby creating an included angle.

[0163] The heat sink provided in this embodiment is arranged at an angle A between the edge of the supporting rib 41 away from the base plate 45 and the base plate 45, which makes it easier for the heat sink to form a ring after assembly, thereby increasing the application scenarios and combination forms of the heat sink.

[0164] Preferably, in this embodiment, when the included angle A = 3°, a ring-shaped heat sink assembly can be formed by connecting 120 individual heat sinks end to end.

[0165] The included angle A of the heat sink and the height of the supporting rib 41, among other design parameters, need to be considered comprehensively. If the included angle is too small, the gap after the heat sink is assembled will be small, resulting in high air resistance during ventilation and cooling. If the angle is large, the height of the supporting rib 41 will be high, resulting in a small surface area for heat dissipation and reduced heat dissipation efficiency. Therefore, it is necessary to consider the fan parameters, wind speed, wind pressure, and heat dissipation temperature as a whole. In this embodiment, through simulation software analysis, the heat dissipation effect is best when the included angle A = 3°.

[0166] 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 scope of protection of this invention.

Claims

1. A wind-cooled structure, characterized in that, include: Air duct (32); A fan (31) is disposed at the first end of the air duct (32); as well as A heat sink assembly (33) is disposed at the second end of the air duct (32) and is connected to the fan (31) via the air duct (32). The heat sink assembly (33) is adapted to contact the structure to be cooled. The first end of the air duct (32) is provided with an air inlet (323), and the second end of the air duct (32) is provided with an air outlet (21); The heat sink assembly (33) has an air inlet (331) formed on its circumferential edge and an air outlet (332) formed in the middle region of the heat sink assembly (33). The air inlet (331) and the air outlet (332) are connected by a heat dissipation channel. The heat sink assembly (33) is constructed in a ring shape; The air duct (32) includes: an air duct dispersion section (322), in which the heat sink assembly (33) is disposed; an air passage (3221) is provided between the outer edge of the heat sink assembly (33) and the inner edge of the air duct dispersion section (322), and the air passage (3221) is connected to the heat dissipation channel; the shape of the air duct dispersion section (322) matches the shape of the heat sink assembly (33); The air duct (32) further includes: an air duct guide (321), which is adapted to connect the fan (31) with the air duct distribution section (322); The air passage (3221) extends from the air duct guide (321) to at least two sides, and the ends of the extensions on at least two sides are connected to each other; the air duct guide (321) is adapted to guide airflow into the air duct dispersion section (322) in at least two directions.

2. The air-cooled structure according to claim 1, characterized in that, The air duct (32) is adapted to guide the airflow sequentially through the air inlet (323), the air duct guide (321), the air passage (3221), the heat dissipation passage and the air outlet (21).

3. The air-cooled structure according to claim 1, characterized in that, The heat dissipation channel between the air inlet (331) and the air outlet (332) is a straight channel.

4. The air-cooled structure according to any one of claims 1-3, characterized in that, The heat sink assembly (33) is formed by assembling at least two heat sinks (40), and a heat dissipation channel is formed between the two heat sinks.

5. The air-cooled structure according to claim 4, characterized in that, The heat sink (40) includes: Base plate (45); Support ribs (41) extend from the surface of the base plate (45) in a direction away from the base plate (45); and A first fitting (42) and a second fitting (43), wherein the first fitting (42) or the second fitting (43) is adapted to be snap-fitted to the second fitting (43) or the first fitting (42) on another adjacent heat sink.

6. The air-cooled structure according to claim 5, characterized in that, The edge of the supporting rib (41) on the side away from the base plate (45) is set at an angle A with the base plate (45), where A > 0°.

7. The air-cooled structure according to claim 5, characterized in that, The edge of the supporting rib (41) away from the base plate (45) is set at an angle A with the base plate (45), where A = 3°; the heat sink assembly (33) is formed by sequentially splicing 120 heat sinks (40) to form a ring.

8. A pressure cooker, characterized in that, include: Claypot(10); The lid (20) is movably connected to the pot body (10) via a hinge shaft (34); as well as The air-cooled structure as described in any one of claims 1-7 above.

9. The pressure cooker according to claim 8, characterized in that, The pressure cooker also includes: The inner cover (22) is provided, and the heat sink assembly (33) is disposed inside the pot lid (20) and in contact with the inner cover (22).

10. The pressure cooker according to claim 9, characterized in that, The air inlet (323) is located on the side of the pot body (10); the air outlet (21) is located above the pot lid (20), and the air inlet (323) and the air outlet (21) are respectively located at both ends of the air duct (32).

11. The pressure cooker according to claim 10, characterized in that, At least a portion of the air duct (32) is provided with an air duct guide (321) which extends from the side of the pot body (10) toward the top surface of the inner cover (22).

12. The pressure cooker according to claim 11, characterized in that, The air duct guide (321) is arranged in an arc shape.

13. The pressure cooker according to claim 11, characterized in that, There are two hinge shafts (34), which are respectively located on opposite sides of the outside of the air duct guide (321).

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