Cooking utensil

Abstract

The utility model discloses a cooking utensil which comprises a pot body with a containing cavity, a cooling fan is arranged on the side portion of the pot body, the cooling fan is used for blowing cold air into the containing cavity, a first noise reduction cavity corresponding to the cooling fan is arranged in the pot body, and the first noise reduction cavity is arranged on the outer side of the cooling fan in a covering mode. An air inlet duct forming an included angle with the axis of the cooling fan is further arranged in the pot body, the air inlet duct communicates with the first noise reduction cavity so that external cold air can pass through the air inlet duct to reach the cooling fan through the first noise reduction cavity, and a contraction part is arranged in the air inlet duct. According to the fan, noise generated when the fan works is limited in the first noise reduction cavity and weakened in the first noise reduction cavity, and the noise cannot be diffused and spread in a large space on the outer side of the containing cavity. When the noise is transmitted in the air inlet duct, due to the arrangement of the contraction part, sound waves can be turned when passing through the contraction part, so that the sound waves meet, part of the noise can be counteracted, and the noise reduction effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a cooking utensil. Background Technology

[0002] Existing cooking appliances typically have inner pots made of metal. When the heating element is powered on, it transfers heat to the inner pot, cooking the food inside. However, food often sticks to the pot during cooking, making it difficult to clean afterward and negatively impacting the user experience. To address this issue, the applicant has previously applied for a water-based non-stick coating technology. This technology utilizes a cooling fan on the pot body. The fan's operation creates airflow that cools the inner pot, causing the high-temperature steam inside to condense into water upon contact with the inner pot. This condensation forms a water film between the food and the inner wall of the pot, preventing food from sticking and achieving a non-stick effect.

[0003] However, the cooling fan is usually located on the side of the pot body, in the open area between the insulation cover and the outer cover. When the fan is working, the cold air from the outside is drawn into the cooling fan through the air inlet of the outer cover and blown into the interior of the insulation cover.

[0004] Because the cooling fan is located in a relatively open area, the noise generated by the fan during operation, as well as the noise generated during high-speed airflow, cannot be effectively suppressed, resulting in significant noise and a poor user experience. Furthermore, the heat dissipated by the insulation cover is drawn to the cooling fan by its suction, causing the cool airflow at the fan to be heated, increasing its temperature. This reduces the temperature difference between the airflow and the inner liner, leading to decreased heat dissipation efficiency. Utility Model Content

[0005] This utility model provides a cooking appliance to solve the problem that the fan itself and the airflow generate a lot of noise when it is working, and the heat from the heat insulation cover will flow to the fan, which reduces the cooling efficiency of the fan to the inner pot and affects the user experience.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A cooking appliance includes a pot body with a accommodating cavity. A cooling fan is provided on the side of the pot body for blowing cold air into the accommodating cavity. The pot body has a first noise reduction cavity corresponding to the cooling fan and is covered on the outside of the cooling fan. An air inlet duct is also provided inside the pot body, which is arranged at an angle to the axis of the cooling fan. The air inlet duct is connected to the first noise reduction cavity so that cold air from the outside can reach the cooling fan through the air inlet duct and the first noise reduction cavity. A contraction section is provided inside the air inlet duct.

[0008] The cooking appliance of this utility model also has the following additional technical features:

[0009] The contraction section is located at the connection between the first noise reduction cavity and the air inlet duct.

[0010] The outer wall of the pot body is provided with an air intake, and the inside of the pot body is also provided with a second noise reduction cavity covered by the air intake. The air intake duct includes an air inlet and an air outlet. The air inlet is connected to the second noise reduction cavity, and the air outlet is connected to the first noise reduction cavity. The contraction part is located at the connection between the second noise reduction cavity and the air intake duct.

[0011] The inner wall of the air inlet duct is provided with a transition arc surface and / or a gradually narrowing slope at the contraction section.

[0012] The outer wall of the pot body is provided with an air intake, and the inside of the pot body is provided with an air inlet pipe. One end of the air inlet pipe is connected to the air intake, and the other end is connected to the cooling fan. The first noise reduction cavity and the air inlet duct are both located inside the air inlet pipe.

[0013] The air inlet duct has flexible connecting parts at both ends, and the cooling fan and the pot body are fixed to the air inlet duct through the flexible connecting parts; or, the air inlet duct is a structure made of flexible material.

[0014] The pot body includes an outer cover, and the side wall of the outer cover has an air intake. The cooling fan and the air intake are offset in the radial direction of the pot body. The air inlet duct extends laterally to connect the first noise reduction chamber and the air intake.

[0015] The pot body also has a second noise reduction chamber covered by the air inlet. The air inlet duct is connected to the second noise reduction chamber. A first airflow bend is provided in the first noise reduction chamber. The axis of the air inlet is arranged at an angle to the air inlet duct so that the second noise reduction chamber has a second airflow bend.

[0016] The pot body includes an outer cover and a base located below the outer cover. The bottom wall of the base has an air intake, and the air intake duct extends vertically to connect the first noise reduction chamber and the air intake.

[0017] Along the direction closer to the first noise reduction cavity, the flow area of ​​the air intake duct gradually increases.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0019] 1. In this utility model, a first noise reduction cavity is provided inside the pot body, which covers the outside of the cooling fan, thereby isolating the cooling fan from other spaces outside the cavity. The noise generated when the fan is working is confined within the first noise reduction cavity and weakened within it, preventing it from spreading in the larger space outside the cavity. Simultaneously, the airflow generated when the cooling fan is working is also confined within the first noise reduction cavity, making the airflow more concentrated and improving air intake efficiency. It also provides a certain degree of sound insulation, reducing noise propagation and thus improving the overall noise reduction effect. Furthermore, an air intake duct is provided inside the pot body at an angle to the cooling fan, and a constriction section is provided within the air intake duct. When noise propagates within the air intake duct, due to the angle of the constriction section, the sound waves are redirected when passing through the angle and the constriction section, causing them to meet and cancel out some of the noise, achieving a noise reduction effect.

[0020] Furthermore, since the cooling fan is housed inside the first noise reduction cavity, the cavity wall also serves as a heat insulation layer, preventing the heat emitted by the insulation cover from reaching the cooling fan. This prevents the heat from coming into contact with the airflow that is flowing towards the cooling fan, thus avoiding a temperature rise in the airflow and keeping it at a lower temperature. This creates a larger temperature difference between the airflow and the inner liner, thereby improving the cooling effect.

[0021] 2. In a preferred embodiment of this utility model, the contraction section is located at the connection between the first noise reduction cavity and the air inlet duct. Since the air inlet duct forms an angle with the axis of the fan, an airflow bend is formed at the connection between the air inlet duct and the first noise reduction cavity. The placement of the contraction section at this location further complicates the path at the connection. First, when external airflow flows through the air inlet duct, the presence of the contraction section reduces the width of the channel, and the airflow bend causes the airflow to change direction, reducing its kinetic energy. Furthermore, the channel width within the first noise reduction cavity is relatively large, allowing the airflow to quickly diffuse within the first noise reduction cavity after passing through the contraction section, further weakening its kinetic energy and flow velocity. This effectively reduces the whistling sound generated by the airflow and lowers the noise emitted by the airflow. Secondly, when the noise waves reach the connection between the first noise reduction cavity and the air inlet duct, they also change direction and collide with each other, causing the sound waves to cancel each other out, reducing the intensity of the sound waves, and further improving the noise reduction effect.

[0022] 3. In a preferred embodiment of this utility model, an air intake is provided on the outer wall of the pot body, and an air inlet pipe is provided inside the pot body. One end of the air inlet pipe is connected to the air intake, and the other end is connected to the cooling fan. The first noise reduction cavity and the air inlet duct are both located inside the air inlet pipe. By connecting the air intake and the cooling fan through an air inlet pipe, the first noise reduction cavity and the air inlet duct are both located inside the air inlet pipe. The change in the internal flow area of ​​the air inlet pipe forms a wider first noise reduction cavity and a narrower constriction section, which reduces the manufacturing difficulty of the first noise reduction cavity and the air inlet duct, and ensures the sealing of the first noise reduction cavity and the air inlet duct, avoiding the phenomenon of air leakage due to unstable connection when two components are connected.

[0023] 4. In a preferred embodiment of this utility model, flexible connecting parts are provided at both ends of the air inlet pipe, and the cooling fan and the pot body are both fixed to the air inlet pipe through the flexible connecting parts; or, the air inlet pipe is a structure made of flexible material. The flexible connection between the air inlet pipe and the cooling fan and the pot body respectively can, on the one hand, improve the noise absorption effect at the connection point and enhance the noise reduction effect; on the other hand, the flexible connection can reduce the vibration transmitted from the cooling fan to the air inlet pipe, avoiding severe vibration of the air inlet pipe and the generation of noise. Furthermore, since the connection of the air inlet pipe is a flexible structure, after connection, under the action of pre-tightening force, the flexible structure will deform, thereby sealing the connection between the air inlet pipe and the cooling fan, and the connection between the air inlet pipe and the pot body, improving the sealing performance.

[0024] 5. In a preferred embodiment of this utility model, the pot body includes an outer cover and a base located below the outer cover. An air intake is provided on the bottom wall of the base, and an air inlet duct extends vertically to connect the first noise reduction chamber and the air intake. The bottom wall of the base has an air intake that is vertically oriented. External airflow enters the air inlet duct upwards through the air intake. Because the air intake is located at the bottom of the pot body, the user cannot directly see it when the cooking utensils are placed on the countertop, thus improving the appearance quality of the pot body and making its appearance more complete. Simultaneously, with the air intake at the bottom of the pot body, external impurities are less likely to enter the pot body through the air intake, thereby eliminating the need for decorative components such as air intake covers and saving costs. Furthermore, during cooking, the air inside the pot body is heated, and the upward movement of the hot air allows external air to be drawn into the air intake more quickly, thereby increasing the cooling fan's power and improving the cooling effect. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0026] Figure 1This is an exploded view of the pot body structure according to one embodiment of the present invention;

[0027] Figure 2 for Figure 1 A sectional view of the middle pot body;

[0028] Figure 3 for Figure 2 A magnified view of area A in the middle;

[0029] Figure 4 for Figure 2 A magnified view of area B in the middle;

[0030] Figure 5 This is a cross-sectional view of the air inlet pipe according to one embodiment of the present invention;

[0031] Figure 6 This is a cross-sectional view of a portion of the pot body according to another embodiment of the present invention;

[0032] Figure 7 This is an exploded view of the pot body according to one embodiment of the present invention.

[0033] in:

[0034] 1 outer cover; 11 air intakes;

[0035] 2. Insulation cover; 21. Receptacle; 22. Cooling fan;

[0036] 3. Air inlet duct; 31. First noise reduction chamber; 32. Air inlet channel; 33. Second noise reduction chamber; 34. Contraction section; 35. Snap fastener; 36. Air inlet; 37. Air outlet;

[0037] 4. Air inlet cover; 41. Matching clips;

[0038] 5. Base. Detailed Implementation

[0039] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. 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 any suitable manner in one or more embodiments or examples.

[0044] like Figure 1 , Figure 2 As shown, a cooking appliance includes a pot body with a accommodating cavity 21. A cooling fan 22 is provided on the side of the pot body for blowing cold air into the accommodating cavity 21. The pot body has a first noise reduction cavity 31 corresponding to the cooling fan 22, which covers the outside of the cooling fan 22. An air inlet duct 32 is also provided inside the pot body at an angle to the axis of the cooling fan 22. The air inlet duct 32 is connected to the first noise reduction cavity 31 so that cold air from the outside can reach the cooling fan 22 through the air inlet duct 32 and the first noise reduction cavity 31. A contraction section 34 is provided inside the air inlet duct 32.

[0045] Specifically, such as Figure 1As shown, the pot body includes an outer cover 1 and a heat insulation cover 2 placed inside the outer cover 1. The heat insulation cover 2 forms a cavity 21. A cooling fan 22 is disposed on the outer wall of the heat insulation cover 2. The first noise reduction cavity 31 and the air inlet duct 32 are both located in the space between the heat insulation cover 2 and the outer cover 1.

[0046] It should be noted that this utility model does not limit the purpose of the cooling fan 22 in cooling the inner pot. For example, it can cool the outer wall of the inner pot to create a temperature difference between the inner and outer walls, which helps to form a moist film on the inner wall of the inner pot, thus achieving a non-stick effect. Alternatively, it can cool the outer wall of the inner pot to rapidly reduce the internal temperature of the inner pot, thereby achieving rapid pressure reduction after pressure cooking. Alternatively, after cooking, the cooling fan 22 can blow cold air into the receiving cavity 21 to lower the temperature of the receiving cavity 21, making it easier for the user to remove the inner pot and to clean the receiving cavity 21. In other words, regardless of the function of the cooling fan 22, as long as the pot body is equipped with a cooling fan 22 and noise reduction and heat insulation are achieved through the first noise reduction cavity 31 and the air inlet duct 32, it falls within the protection scope of this utility model.

[0047] In this invention, a first noise reduction cavity 31 is provided inside the pot body, covering the outside of the cooling fan 22. This isolates the cooling fan 22 from other spaces outside the accommodating cavity 21. The noise generated by the fan during operation is confined within the first noise reduction cavity 31 and weakened within it, preventing it from spreading in the larger space outside the accommodating cavity 21. Simultaneously, the airflow generated by the cooling fan 22 is also confined within the first noise reduction cavity 31. This concentrates the airflow, improving air intake efficiency, and also provides some sound insulation, reducing noise propagation and thus improving the overall noise reduction effect. Furthermore, an air intake duct 32 is provided inside the pot body, arranged at an angle to the cooling fan 22. A constriction section 34 is provided within the air intake duct 32. When noise propagates within the air intake duct 32, the sound waves are redirected at the corner and constriction section 34 due to the angle of the constriction section 34, causing them to meet and cancel out some of the noise, achieving a noise reduction effect.

[0048] Furthermore, since the first noise reduction cavity 31 encloses the cooling fan 22 inside, the cavity wall of the first noise reduction cavity 31 can also serve as a heat insulation function, isolating the heat emitted by the heat insulation cover 2 from the outside of the first noise reduction cavity 31 and preventing it from reaching the cooling fan 22. As a result, the heat cannot come into contact with the airflow flowing to the cooling fan 22, thus avoiding the temperature rise of the airflow and keeping the airflow at a lower temperature, maintaining a large temperature difference with the inner liner, thereby improving the cooling effect.

[0049] Preferably, such as Figure 2 , Figure 5As shown, the width (flow area) of the first noise reduction cavity 31 is greater than the width (flow area) of the air inlet duct 32, so that when the external airflow flows from the air inlet duct 32 to the first noise reduction cavity 31, the airflow will quickly diffuse due to the sudden increase in flow area, thereby rapidly reducing the kinetic energy of the airflow and reducing the noise generated by the airflow. The airflow in the first noise reduction cavity 31 flows towards the cooling fan 22 under the suction of the fan, and is accelerated again by the cooling fan 22 into the receiving cavity 21.

[0050] The present invention does not limit the location of the contraction part 34, which can be one of the following embodiments:

[0051] Implementation Method 1: In this implementation method, as follows Figure 2 , Figure 4 , Figure 5 As shown, the contraction section 34 is located at the connection between the first noise reduction cavity 31 and the air inlet duct 32.

[0052] Because the air inlet duct 32 forms an angle with the fan axis, an airflow bend is formed at the connection between the air inlet duct 32 and the first noise reduction cavity 31. The constriction section 34 is also positioned here, making the path at the connection between the air inlet duct 32 and the first noise reduction cavity 31 more tortuous. Firstly, when external airflow flows through the air inlet duct 32 to this point, the presence of the constriction section 34 reduces the width of the channel, and the airflow bend causes the airflow to change direction, reducing its kinetic energy. Furthermore, the channel width within the first noise reduction cavity 31 is relatively large, and the airflow, after passing through the constriction section 34, quickly diffuses within the first noise reduction cavity 31, further weakening its kinetic energy and flow velocity. This effectively reduces the whistling sound generated by the airflow and lowers the noise emitted by the airflow. Secondly, when the noise waves reach the connection between the first noise reduction cavity 31 and the air inlet duct 32, they also change direction and collide with each other, causing the sound waves to cancel each other out, reducing the intensity of the sound waves, and further improving the noise reduction effect.

[0053] Implementation Method Two: In this implementation method, as follows Figure 2 , Figure 3 , Figure 5 As shown, the outer wall of the pot body is provided with an air intake 11, and the inside of the pot body is also provided with a second noise reduction cavity 33 covering the air intake 11. The air inlet duct 32 includes an air inlet 36 and an air outlet 37. The air inlet 36 is connected to the second noise reduction cavity 33, and the air outlet 37 is connected to the first noise reduction cavity 31. The contraction part 34 is located at the connection between the second noise reduction cavity 33 and the air inlet duct 32.

[0054] Similarly to the above implementation, the width (flow area) of the second noise reduction cavity 33 is greater than the width (flow area) of the air inlet duct 32, so that when the airflow flows from the second noise reduction cavity 33 into the air inlet duct 32, it will converge and turn at the connection, thereby canceling out part of the sound waves and achieving the effect of noise reduction.

[0055] Implementation Method 3: In this implementation method, multiple contraction sections 34 are provided at intervals along the extension direction of the air inlet duct 32, so that the airflow will converge and diffuse multiple times during the flow of the air inlet duct 32, causing the sound waves to collide and cancel each other out multiple times, thereby greatly reducing the sound wave intensity and improving the noise reduction effect.

[0056] It should be noted that the above three implementation methods can be implemented individually or in any combination. For example, implementation method one and implementation method two can be combined, such as... Figure 5 As shown, this results in two contraction sections 34, located at the connection between the first noise reduction cavity 31 and the air inlet duct 32, and at the connection between the second noise reduction cavity 33 and the air inlet duct 32, respectively. Alternatively, by combining the above three embodiments, a plurality of contraction sections 34 can be obtained, with one contraction section 34 located at the connection between the first noise reduction cavity 31 and the air inlet duct 32, another contraction section 34 located at the connection between the second noise reduction cavity 33 and the air inlet duct 32, and at least one contraction section 34 spaced apart along the extending direction of the air inlet duct 32.

[0057] Preferably, such as Figure 5 As shown, the inner wall of the air inlet duct 32 is provided with a transition arc surface and / or a gradually narrowing slope at the contraction section 34.

[0058] The design of the transitional curved surface or tapering slope serves two purposes. First, when the airflow turns at the contraction section 34, the guidance of the curved or sloped surface makes the turn smoother, thus reducing the whistling sound during the airflow turn and the collision sound generated when the airflow collides with the inner wall of the air inlet duct 32 after the turn. Second, the turning of the sound waves is also guided by the curved or sloped surface, making it easier for the sound waves to meet, thereby achieving the effect of sound wave cancellation and attenuation.

[0059] It should be noted that the inner wall of the air inlet duct 32 can contract inward on one side to form a contraction section 34, or it can contract inward on both sides simultaneously to form a contraction section 34. In addition, the transition arc surface or the gradually narrowing slope can be provided on one side of the contraction section 34, or it can be provided on both sides of the contraction section 34, or the contraction section 34 can have a transition arc surface on one side and a gradually narrowing slope on the other side.

[0060] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 5As shown, an air intake 11 is provided on the outer wall of the pot body, and an air inlet pipe 3 is provided inside the pot body. One end of the air inlet pipe 3 is connected to the air intake 11, and the other end is connected to the cooling fan 22. The first noise reduction cavity 31 and the air inlet duct 32 are both located inside the air inlet pipe 3.

[0061] The air intake 11 and the cooling fan 22 are connected by an air inlet pipe 3, so that the first noise reduction cavity 31 and the air inlet duct 32 are both located inside the air inlet pipe 3. The change in the internal flow area of ​​the air inlet pipe 3 forms a wider first noise reduction cavity 31 and a narrower constriction part 34, which reduces the manufacturing difficulty of the first noise reduction cavity 31 and the air inlet duct 32, and ensures the sealing of the first noise reduction cavity 31 and the air inlet duct 32, avoiding the phenomenon of air leakage due to unstable connection when the two components are connected.

[0062] In one embodiment, flexible connecting parts are provided at both ends of the air inlet pipe 3, and the cooling fan 22 and the pot body are both fixed to the air inlet pipe 3 through the flexible connecting parts. In this embodiment, the main body of the air inlet pipe 3 can be made of rigid material, and flexible connecting parts, such as flexible joints and sealing rings, are provided at both ends. It is connected to the pot body and the cooling fan 22 through flexible connecting arms.

[0063] In another embodiment, such as Figure 1 , Figure 2 As shown, the air inlet pipe 3 is a structure made of flexible material. The overall flexibility of the air inlet pipe 3 makes its arrangement simpler. When it interferes with other components inside the pot, the air inlet pipe 3 can be squeezed and deformed, which allows the air inlet pipe 3 to be arranged in a smaller space and its posture can be adjusted according to the space inside the pot, thereby reducing assembly difficulty.

[0064] In both embodiments described above, the air inlet duct 3 is flexibly connected to the cooling fan 22 and the pot body, respectively. This improves noise absorption at the connection point, enhancing noise reduction. Furthermore, the flexible connection reduces vibration transmitted from the cooling fan 22 to the air inlet duct 3, preventing severe vibration and noise generation. Additionally, because the connection point of the air inlet duct 3 is a flexible structure, after connection, under pre-tightening force, the flexible structure deforms, sealing the connection points between the air inlet duct 3 and the cooling fan 22, as well as between the air inlet duct 3 and the pot body, thus improving sealing performance.

[0065] Preferably, the air inlet duct 3 is made of silicone or rubber, which has a good sound absorption and noise reduction effect, as well as a good heat insulation effect, to prevent external heat from entering the interior of the air inlet duct 3.

[0066] Preferably, such as Figure 2 , Figure 5As shown, the pot body has an air intake 11, and one end of the air inlet pipe 3 is also provided with a second noise reduction cavity 33, which covers the outside of the air intake 11. This is so that the first noise reduction cavity 31, the second noise reduction cavity 33, and the air inlet duct 32 are all located inside the air inlet pipe 3.

[0067] Specifically, such as Figure 3 , Figure 4 As shown, the air inlet pipe 3 is provided with snap fasteners 35 at both ends, and the cooling fan 22 and the air intake 11 are provided with matching snap fasteners 41. The snap fasteners and matching snap fasteners 41 are snapped together and fixed.

[0068] It should be noted that the present invention does not limit the location of the air intake 11 on the outer surface of the pot body, and it can be one of the following embodiments:

[0069] Implementation Method 1: In this implementation method, as follows Figure 1 , Figure 2 As shown, the pot body includes an outer cover 1, and an air intake 11 is provided on the side wall of the outer cover 1. The cooling fan 22 and the air intake 11 are offset in the radial direction of the pot body. The air inlet duct 32 extends laterally to connect the first noise reduction cavity 31 and the air intake 11.

[0070] The air intake 11 and the cooling fan 22 are staggered, which can lengthen the air intake duct 32, thereby helping to reduce the kinetic energy of the airflow within the air intake duct 32. Outside cold air enters the pot body through the air intake 11, flows laterally along the extension direction of the air intake duct 32, enters the first noise reduction cavity 31, and then enters the receiving cavity 21 along the axial direction of the cooling fan 22 under the action of the cooling fan 22.

[0071] Furthermore, such as Figure 2 , Figure 5 As shown, the pot body also has a second noise reduction cavity 33 covered by the air inlet 11. The air inlet duct 32 is connected to the second noise reduction cavity 33. A first airflow bend is provided in the first noise reduction cavity 31. The axis of the air inlet 11 is arranged at an angle to the air inlet duct 32 so that the second noise reduction cavity 33 has a second airflow bend.

[0072] After the airflow enters the pot body, it undergoes two turns: one between the second noise reduction cavity 33 and the air inlet duct 32, and the other between the air inlet duct 32 and the first noise reduction cavity 31. This effectively reduces the kinetic energy of the airflow, thereby reducing the noise generated by the airflow. At the same time, the sound waves also undergo two turns and cancel each other out along the noise's exit path, further improving the noise reduction effect.

[0073] Specifically, such as Figure 1 , Figure 3As shown, an air inlet hood 4 is provided at the air intake 11. The air inlet hood 4 is equipped with a grille to block external impurities from entering the pot body and to improve its appearance. The air inlet pipe 3 is fixedly connected to the air inlet hood 4.

[0074] Implementation Method Two: In this implementation method, as follows Figure 6 , Figure 7 As shown, the pot body includes an outer cover 1 and a base 5 located below the outer cover 1. The bottom wall of the base 5 is provided with an air intake 11, and the air intake duct 32 extends vertically to connect the first noise reduction cavity 31 and the air intake 11.

[0075] The bottom wall of the base 5 has an air intake 11 that is opened in the vertical direction. The external airflow enters the air intake duct 32 upward through the air intake 11, and then passes horizontally through the cooling fan 22 from the first noise reduction cavity 31.

[0076] Because the air intake vent 11 is located at the bottom of the pot, it is not directly visible to the user when the cooking utensils are placed on the countertop, thus improving the appearance of the pot and making it look more complete. At the same time, with the air intake vent 11 at the bottom, external impurities are less likely to enter the pot through it, eliminating the need for decorative components such as the air inlet shroud 4 and saving costs. Furthermore, during cooking, the air inside the pot is heated, and the upward movement of the hot air draws outside air more quickly into the air intake vent 11, thereby increasing the airflow of the cooling fan 22 and improving the cooling effect.

[0077] Preferably, such as Figure 6 As shown, a second noise reduction cavity 33 is provided between the air inlet duct 32 and the air intake 11. The extension direction of the second noise reduction cavity 33 is parallel to the axis of the air intake 11. The flow area of ​​the first noise reduction cavity 31 and the second noise reduction cavity 33 is larger than the flow area of ​​the air inlet duct 32.

[0078] In a preferred embodiment, such as Figure 6 As shown, the flow area of ​​the air inlet duct 32 gradually increases along the direction close to the first noise reduction cavity 31.

[0079] As the external airflow flows within the air inlet duct 32, the closer it gets to the cooling fan 22, the greater the suction force it experiences. By designing the air inlet duct 32 to have a gradually increasing flow area, the airflow velocity and kinetic energy are relatively reduced near the first noise reduction cavity 31. This prevents the kinetic energy of the airflow from increasing significantly under the combined action of the cooling fan 22 and the narrower duct, thus avoiding the generation of a loud whistling sound.

[0080] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0081] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0082] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A cooking appliance, comprising a pot body having a receiving cavity, characterized in that, A cooling fan is provided on the side of the pot body, which is used to blow cold air into the accommodating cavity. The pot body has a first noise reduction cavity corresponding to the cooling fan. The first noise reduction cavity covers the outside of the cooling fan. The pot body also has an air inlet duct arranged at an angle to the axis of the cooling fan. The air inlet duct is connected to the first noise reduction cavity so that the outside cold air can reach the cooling fan through the air inlet duct and the first noise reduction cavity. The air inlet duct has a contraction section inside.

2. The cooking utensil according to claim 1, characterized in that, The contraction section is located at the connection between the first noise reduction cavity and the air inlet duct.

3. The cooking utensil according to claim 1 or 2, characterized in that, The outer wall of the pot body is provided with an air intake, and the inside of the pot body is also provided with a second noise reduction cavity covering the air intake. The air inlet duct includes an air inlet and an air outlet. The air inlet is connected to the second noise reduction cavity, and the air outlet is connected to the first noise reduction cavity. The contraction part is located at the connection between the second noise reduction cavity and the air inlet duct.

4. The cooking utensil according to claim 1, characterized in that, The inner wall of the air inlet duct is provided with a transition arc surface and / or a gradually narrowing slope at the contraction section.

5. The cooking utensil according to claim 1, characterized in that, The outer wall of the pot body is provided with an air intake, and the inside of the pot body is provided with an air inlet pipe. One end of the air inlet pipe is connected to the air intake and the other end is connected to the cooling fan. The first noise reduction cavity and the air inlet duct are both located inside the air inlet pipe.

6. The cooking utensil according to claim 5, characterized in that, The air inlet pipe is provided with flexible connecting parts at both ends, and the cooling fan and the pot body are fixed to the air inlet pipe through the flexible connecting parts; or, the air inlet pipe is a structure made of flexible material.

7. The cooking utensil according to claim 1, characterized in that, The pot body includes an outer cover, and the side wall of the outer cover is provided with an air intake. The cooling fan and the air intake are offset from each other in the radial direction of the pot body. The air inlet duct extends laterally to connect the first noise reduction cavity and the air intake.

8. The cooking utensil according to claim 7, characterized in that, The pot body also has a second noise reduction cavity covering the air intake. The air inlet duct is connected to the second noise reduction cavity. A first airflow bend is provided in the first noise reduction cavity. The axis of the air intake is arranged at an angle to the air inlet duct so that the second noise reduction cavity has a second airflow bend.

9. The cooking utensil according to claim 1, characterized in that, The pot body includes an outer cover and a base located below the outer cover. The bottom wall of the base has an air intake, and the air inlet extends vertically to connect the first noise reduction cavity and the air intake.

10. The cooking utensil according to claim 1, characterized in that, Along the direction close to the first noise reduction cavity, the flow area of ​​the air inlet duct gradually increases.

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