A cooking utensil

Abstract

The present application discloses a cooking device including: an outer shell, an inner shell, a heating device and a windshield, wherein the outer shell is connected to the inner shell to form an inner cavity, and the outer shell has an air inlet and an air outlet connected to the inner cavity; the heating device is installed in the inner cavity; the windshield is installed in the inner cavity, and the projections of the windshield and the heating device on the inner shell at least partially overlap, and there is a gap between the windshield and the heating device, so that the airflow entering the inner cavity from the air inlet flows to the air outlet through the gap. The present application uses the gap between the windshield and the heating device to make the air entering the inner cavity produce a Venturi effect, thereby achieving rapid cooling of the heating device and improving the heat dissipation efficiency.

Description

Technical Field

[0001] The present application belongs to the field of electrical appliance technology, and in particular, relates to a cooking utensil. Background Art

[0002] As the power of pressure cookers or rice cookers increases, they need a larger heat dissipation space to meet the heat dissipation requirements of higher and higher power, which also makes the overall size of this type of product larger. However, for commercial considerations, the overall size of the pressure cooker or rice cooker needs to be kept too large, so the heat dissipation space needs to be reduced or the existing space size needs to be maintained, which makes the internal structure of the pressure cooker or rice cooker compact. After the pressure cooker or rice cooker is used, the heat dissipation of key electronic components and coil disks is poor, and the pressure cooker or rice cooker will still maintain a high temperature for a long time, resulting in a shortened life of the electronic components. Utility Model Content

[0003] The present application aims to solve the technical problem of poor heat dissipation of cooking utensils at least to a certain extent. To this end, the present application provides a cooking utensil.

[0004] In a first aspect, an embodiment of the present application provides a cooking utensil, comprising:

[0005] An outer shell and an inner shell, wherein the outer shell is connected with the inner shell to form an inner cavity, and the outer shell has an air inlet and an air outlet communicated with the inner cavity;

[0006] A heating device installed in the inner cavity;

[0007] A wind shield is installed in the inner cavity, wherein the projections of the wind shield and the heating device on the inner shell at least partially overlap, and there is a gap between the wind shield and the heating device, so that the airflow entering the inner cavity from the air inlet flows to the air outlet through the gap.

[0008] In an embodiment of the present application, a wind shield is arranged in the inner cavity of the outer shell and the inner shell, and a gap is provided between the wind shield and the heating device. When the airflow moves from the air inlet through the gap to the air outlet, a Venturi effect will be generated in the gap. When the airflow passes through the wind shield, the air pressure near the gap above the leeward side of the wind shield is relatively low, thereby generating an adsorption effect and accelerating the flow of air, reducing the pressure of the airflow and increasing the flow rate.

[0009] The gap allows the air flow from the air inlet to the air outlet in the inner cavity to contact the heating device through the gap and the space around the gap. For the same volume of air, the air that contacts the heating device through the gap is closer to the heating device than the air that contacts the heating device without passing through the gap. The thermal radiation energy of the heating device can be absorbed by the air to a greater extent. At the same time, the rapid flow of air in the gap will also take away the heat generated by the heating device more quickly. The gap formed between the wind shield and the heating device improves the heat dissipation efficiency of the heating device, which is beneficial to the rapid cooling of the heating device, and reduces the time that the device in the cooking appliance is still in a high temperature state after cooking is completed, thereby slowing down the aging rate of the device in the cooking appliance due to high temperature and increasing the service life of the cooking device.

[0010] In an optional embodiment of the present application, the wind shield is installed on the outer shell, and the heating device is installed on the inner shell.

[0011] In an optional embodiment of the present application, the wind shield is protruded from the outer shell, and the gap is smaller than the distance between the outer shell and the heating device.

[0012] In an optional embodiment of the present application, the wind shield is located below the heating device.

[0013] In an optional embodiment of the present application, the heating device includes at least a heating element, the heating element is circular, and the projection of the wind shield on the heating element is at least partially located within a region of 1 / 2 radius to 1 times radius of the heating element.

[0014] In an optional embodiment of the present application, the projection shape of the wind shield on the heating element at least partially matches the shape of the heating element. In an optional embodiment of the present application, the gap is 8 mm to 12 mm.

[0015] In an optional embodiment of the present application, at least a portion of the wind shield is located between the air inlet and the air outlet.

[0016] In an optional embodiment of the present application, the wind shield includes a first wind shield, a second wind shield and a third wind shield, the third wind shield is arranged between the first wind shield and the second wind shield, and the third wind shield is located between the air inlet and the air outlet, so that the first wind shield, the second wind shield and the third wind shield form a chamber for guiding the airflow to move toward the heating device.

[0017] In an optional embodiment of the present application, the third wind shield is vertically arranged on the inner wall of the shell or inclined toward the direction close to the air outlet.

[0018] In an optional embodiment of the present application, the shape of the third wind deflector is adapted to the shape of the edge of the air outlet close to the third wind deflector.

[0019] In an optional embodiment of the present application, in the area between the wind shield and the air inlet, the distance between the outer shell and the heating device is a first distance, and in the area between the wind shield and the air outlet, the distance between the outer shell and the heating device is a second distance, and the gap is smaller than both the first distance and the second distance.

[0020] In an optional embodiment of the present application, the wind shield is covered on the air inlet or the air outlet.

[0021] In an optional embodiment of the present application, the cooking appliance further includes a fan, which is disposed in the inner cavity and located between the air inlet and the wind shield.

[0022] In an optional embodiment of the present application, the fan is installed on the outer shell, the heating device is installed on the inner shell, and the fan has an air guide plate inclined toward the heating device.

[0023] In an optional embodiment of the present application, the inclination angle of the air guide plate is 150° to 180°.

[0024] In an optional embodiment of the present application, the wind shield and the fan are located on different sides of the heating device.

[0025] In an optional embodiment of the present application, the projection of the heating element on the housing is located between the air inlet and the air outlet, the fan is arranged close to the air inlet, and at least a portion of the wind shield is arranged close to the air outlet.

[0026] In an optional embodiment of the present application, the heating device includes at least a heating element, the heating element is circular, and parts of the fan and the wind shield are respectively located in two different radius areas of the same diameter of the heating element.

[0027] In an optional embodiment of the present application, the fan is installed at the air inlet, and both ends of the wind shield are respectively connected to the fan.

[0028] In an optional embodiment of the present application, the cooking appliance further includes a first operation interface, and the first operation interface is installed on the shell.

[0029] In an optional embodiment of the present application, the cooking appliance further includes a first operation interface and a second operation interface, the first operation interface is installed on the shell, and the second operation interface is installed on the upper cover of the cooking appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the structure of a cooking utensil provided in an embodiment of the present application is shown;

[0032] Figure 2 A schematic diagram of the structure of the cooking utensil provided in an embodiment of the present application after the upper cover is opened is shown;

[0033] Figure 3 A schematic diagram of the exploded structure of the pot body of the cooking utensil provided in an embodiment of the present application is shown;

[0034] Figure 4 A schematic diagram showing the structure of a portion of the outer shell of a cooking utensil provided in an embodiment of the present application is shown;

[0035] Figure 5 A schematic cross-sectional view of a cooking pot body of a cooking utensil provided in an embodiment of the present application is shown;

[0036] Figure 6 Shows Figure 5 A schematic diagram of the structure from another perspective;

[0037] Figure 7 A schematic cross-sectional structure diagram of the cooking utensil provided in an embodiment of the present application is shown from another viewing angle;

[0038] Figure numerals: 100-cooking utensil, 110-cooker body, 111-outer shell, 111a-air inlet, 111b-air outlet, 111c-shielding member, 112-inner shell, 113-inner cavity, 114-heating device, 114a-heating member, 115-wind shield, 115a-first wind shield, 115b-second wind shield, 115c-third wind shield, 115d-chamber, 116-gap, 117-fan, 118-wind guide plate, 119-power board, 120-upper cover, 160-first operating interface, 170-second operating interface. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0041] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0043] See also Figure 1 A cooking utensil provided in an embodiment of the present application improves the cooling efficiency of the heating element 114a by disposing a wind shield 115 near the heating element 114a.

[0044] In the embodiments of this application, please refer to Figure 2-Figure 4 The cooking appliance 100 includes an outer shell 111, an inner shell 112, a heating device 114 and a wind shield 115, wherein the outer shell 111 and the inner shell 112 are connected to form an inner cavity 113, and the outer shell 111 has an air inlet 111a and an air outlet 111b connected to the inner cavity 113; the heating device 114 is installed in the inner cavity 113; the wind shield 115 is installed in the inner cavity 113, and the projections of the wind shield 115 and the heating device 114 on the inner shell 112 at least partially overlap, and there is a gap 116 between the wind shield 115 and the heating device 114, so that the airflow entering the inner cavity 113 from the air inlet 111a flows to the air outlet 111b through the gap 116.

[0045] See also Figure 5The outer shell 111 and the inner shell 112 form a pot body 110 of the cooking utensil 100. The pot body 110 is used to provide a mounting base for at least some of the other components of the cooking utensil 100. At least some of the other components are mounted in an inner cavity 113 formed by connecting the outer shell 111 and the inner shell 112 to obtain protection. In addition, the inner shell 112 also provides a detachable installation space for the pot body.

[0046] See also Figure 3 and Figure 5 The heating device 114 is disposed in the inner cavity 113 to heat the pot placed in the inner shell 112, and the heat generated by the heating device 114 is radiated to the air near the heating device 114 or other structures of the cooking device 100. In the inner cavity 113, a passage through which air can pass is formed between the air inlet 111a and the air outlet 111b, thereby facilitating heat dissipation of the heating device 114.

[0047] See also Figure 4 The wind shield 115 is disposed in the inner cavity 113 , and the projection of the wind shield 115 and the heating device 114 in the inner shell 112 at least partially overlaps, that is, the wind shield 115 can overlap with the heating device 114 in a certain direction.

[0048] For example: when the heating device 114 and the wind shield 115 are both arranged on the bottom wall of the entire pot body 110, the heating device 114 can be installed on the inner shell 112, and the wind shield 115 can be installed on the outer shell 111. The wind shield 115 is located directly below the heating device 114, and part of the wind shield 115 does not exceed the width of the heating device 114 in the width direction.

[0049] When the heating device 114 and the wind shield 115 are both arranged on the side wall of the entire pot body 110, the heating device 114 can be installed on the side wall of the inner shell 112, and the wind shield 115 can be installed on the side wall of the outer shell 111. The wind shield 115 is located on the outside of the heating device 114, and the height of part of the wind shield 115 is within the height range of the heating device 114.

[0050] When the heating device 114 is installed on the side wall of the inner shell 112 and the wind shield 115 is installed on the bottom wall of the outer shell 111, the top of part of the wind shield 115 is located outside the heating device 114, and the height of this part of the wind shield 115 is within the height range of the heating device 114.

[0051] When the heating device 114 is installed on the bottom wall of the inner shell 112 and the wind shield 115 is installed on the side wall of the outer shell 111 , one end of the wind shield 115 close to the heating device 114 is located below the heating device 114 .

[0052] See also Figure 4-Figure 6 , Figure 6The black arrows in the figure are schematic arrows for the direction of airflow. There is a gap 116 between the wind shield 115 and the heating device 114, that is, the width or height of the space on both sides of the wind shield 115 is greater than the size of the gap 116. When the airflow moves from the air inlet 111a through the gap 116 to the air outlet 111b, the airflow will produce a Venturi effect at the gap 116. When the airflow passes through the wind shield 115, the air pressure near the gap 116 above the leeward side of the wind shield 115 is relatively low, thereby generating an adsorption effect and accelerating the flow of air, and the pressure of the airflow is reduced and the flow rate is increased.

[0053] The gap 116 allows the airflow from the air inlet 111a to the air outlet 111b in the inner cavity 113 to contact the heating device 114 through the gap 116 and the space around the gap 116. It can be understood that for the same volume of air, the air that contacts the heating device 114 through the gap 116 is closer to the heating device 114 than the air that contacts the heating device 114 without passing through the gap 116, and the heat radiation of the heating device 114 can be absorbed by the air to a greater extent. At the same time, the rapid flow of air at the gap 116 will also take away the heat generated by the heating device 114 more quickly. The gap 116 formed between the wind shield 115 and the heating device 114 improves the heat dissipation efficiency of the heating device 114, which is conducive to the rapid cooling of the heating device 114, and reduces the time that the device in the cooking device 100 is still in a high temperature state after cooking is completed, thereby slowing down the speed of aging of the device in the cooking device 100 due to high temperature and improving the service life of the cooking device.

[0054] In some embodiments, the wind shield 115 is installed on the outer shell 111 , and the heating device 114 is installed on the inner shell 112 .

[0055] See also Figure 4 and Figure 5 The wind shield 115 is arranged in the inner cavity 113 and installed on the outer shell 111, that is, the wind shield 115 is installed on the inner wall of the outer shell 111 to reduce the gap that may exist between the wind shield 115 and the outer shell 111, so that the airflow can pass more from the gap 116, thereby ensuring the heat dissipation efficiency of the airflow to the heating device 114.

[0056] The heating device 114 is disposed in the inner cavity 113 and installed on the inner shell 112, that is, the heating device 114 is installed on the outer wall of the inner shell 112. The heating device 114 is closer to the pot body, which can improve the heating efficiency of the heating device 114 on the pot body.

[0057] In some embodiments, the wind shield 115 is protruded from the housing 111 , and the gap 116 is smaller than the distance between the housing 111 and the heating device 114 .

[0058] The inner cavity 113 of the cooking device 100 may be provided with other devices. Figure 5 and Figure 6 The windshield 115 is protruded from the outer shell 111 to ensure that a gap 116 is formed between the heating device 114 and the windshield 115. The inner cavity 113 is generally provided with other devices or structures for strengthening the outer shell 111 and / or the inner shell 112, but these devices or structures do not contact the heating device 114 to avoid being affected by the high temperature of the heating device 114, that is, the outer shell 111 and the heating device 114 are at a distance.

[0059] The distance between the housing 111 and the heating device 114 refers to the distance between any point in the housing 111 and any point on the heating device 114, which means that there are many different sizes of the distance between the housing 111 and the heating device 114. The gap 116 is smaller than the distance between the housing 111 and the heating device 114, which means that the gap 116 is smaller than the minimum distance between the housing 111 and the heating device 114, so that the gap 116 is the minimum gap between the housing 111 and the heating device 114, and the airflow will stably form a Venturi effect at the gap 116 during the process of passing through the gap 116. Increasing the speed of the airflow through the gap 116 improves the air dispersion efficiency of the heating device 114.

[0060] In some embodiments, the wind shield 115 is located below the heating device 114 .

[0061] See also Figure 5 and Figure 6 , the wind shield 115 is provided on the outer shell 111 and is located below the heating device 114, and the corresponding heating device 114 is installed on the bottom wall of the outer wall of the inner shell 112, and the gap 116 is located below the inner shell 112. Then, the air inlet 111a and the air outlet 111b of the outer shell 111 can be both provided on the bottom wall of the outer shell 111, so as to prevent the high-temperature air from flowing out from the side wall of the cooking utensil 100 during the heat dissipation process and scalding the user near the cooking utensil 100, thereby improving the safety performance of the cooking utensil 100.

[0062] Also, see Figure 6 When the wind shield 115 is located below the heating device 114, the airflow for cooling the heating device 114 only needs to flow between the bottom wall of the inner shell 112 and the inner bottom wall of the outer shell 111 to pass through the gap 116 above the wind shield 115 and cover at least most of the surface of the heating device 114. Then, at this time, the air inlet 111a and the air outlet 111b are both set on the bottom wall of the outer shell 111, which can shorten the path of the air flow movement between the air inlet 111a and the air outlet 111b.

[0063] When the air flow speed is the same, the shorter the path of the air flow, the shorter the time the air stays in the inner cavity 113, and naturally the less heat the air absorbs in the inner cavity 113. The temperature rise of the air after flowing out from the air outlet 111b is not large, and the safety performance is high.

[0064] When the airflow path is long, the air in the inner cavity 113 absorbs relatively more heat, and the average temperature of the air in the inner cavity 113 is relatively high. The heat radiation efficiency of the heating device 114 to the air in the inner cavity 113 is reduced. Therefore, by shortening the airflow path, the time the air stays in the inner cavity 113 is shortened, and the air inlet 111a continues to pass normal temperature air into the inner cavity 113. The average temperature of the air in the inner cavity 113 is relatively reduced. The temperature difference between the temperature of the heating device 114 and the temperature of the air in the inner cavity 113 is large, the heat radiation efficiency of the heating device 114 is higher, and the cooling efficiency per unit time is higher.

[0065] In some embodiments, the heating device 114 at least includes a heating element 114a, the heating element 114a is circular, and the projection of the wind shield 115 on the heating element 114a is at least partially located within a radius of 1 / 2 to 1 times the radius of the heating element 114a.

[0066] The pot body used for cooking is mostly in the shape of a disk or a cylinder, so the shape of the inner shell 112 matches the shape of the pot body, and the heating device 114 is arranged on the bottom wall of the inner shell 112 .

[0067] The heating element 114a of the heating device 114 is the main heat-generating component for heating the pot body. The shape of the heating element 114a matches the bottom wall of the inner shell 112. The heating element 114a is circular. The area of ​​the outer edge of the heating element 114a is larger, so the heat generated by the outer edge of the heating element 114a is relatively larger. Therefore, the projection of the wind shield 115 on the heating element 114a is at least partially located in the area of ​​1 / 2 radius to 1 times radius of the heating element 114a, that is, the gap 116 is set close to the outer edge of the heating element 114a. When the airflow moves in the inner cavity 113 and passes through the gap 116, the speed of the airflow reaches the maximum near the gap 116, effectively cooling the area on the heating element 114a that generates more heat, improving the cooling efficiency, and also ensuring that the edge of the heating element 114a can be blown by the airflow and then cooled.

[0068] In some embodiments, the projection shape of the wind shield 115 on the heating element 114a is at least partially adapted to the shape of the heating element 114a.

[0069] Of course, the shape of the wind shield 115 can be completely adapted to the shape of the heating element 114a, for example, see Figure 3The heating element 114a is circular, and the shape of the wind shield 115 is also circular. However, considering that other devices are also provided in the inner cavity 113, the wind shield 115 is also provided with an avoidance portion so that the other devices are located on the outside of the wind shield 115. At this time, the shape of the avoidance portion is not compatible with the shape of the heating element 114a.

[0070] In some embodiments, the wind shield 115 includes a first wind shield 115a, a second wind shield 115b and a third wind shield 115c, the third wind shield 115c is arranged between the first wind shield 115a and the second wind shield 115b, and the third wind shield 115c is located between the air inlet 111a and the air outlet 111b, so that the first wind shield 115a, the second wind shield 115b and the third wind shield 115c form a chamber 115d for guiding the airflow to move toward the heating device 114.

[0071] See also Figure 4 , Figure 6 and Figure 7 A channel for air flow is formed between the first wind shield 115a and the second wind shield 115b. When the air flow enters between the first wind shield 115a and the second wind shield 115b, the air flow is restricted by the first wind shield 115a and the second wind shield 115b and will flow along the channel. The third wind shield 115c is arranged between the first wind shield 115a and the second wind shield 115b. The third wind shield 115c will block the flow of the air flow, so that the air can only move along the first wind shield 115a, the second wind shield 115b and the third wind shield 115c toward the heating device 114, and finally flow out from the gap 116 above the first wind shield 115a, the second wind shield 115b and the third wind shield 115c, and produce a Venturi effect, and the air flow flows quickly and takes away the heat of the heating device 114.

[0072] The two ends of the third wind shield 115c are respectively connected to the side walls of the first wind shield 115a and the second wind shield 115b, and the connection point can be one end or the middle of the first wind shield 115a and the second wind shield 115b, so that the first wind shield 115a, the second wind shield 115b and the third wind shield 115c form a chamber 115d for guiding the airflow to move toward the heating device 114.

[0073] The shapes of the first wind shield 115a, the second wind shield 115b and the third wind shield 115c can be adaptively changed according to the structure in the inner cavity 113. For example, the shapes of the first wind shield 115a and the second wind shield 115b can be straight plates, or they can be arc-shaped plates consistent with the outer shape of the heating element 114a. Figure 4Of course, in order to improve the stability of airflow movement, the side walls opposite to the first wind deflector 115a and the second wind deflector 115b can be streamlined to reduce the collision between the airflow and the first wind deflector 115a and / or the second wind deflector 115b, and the third wind deflector 115c can also be set as a straight plate or a curved plate.

[0074] In some embodiments, the shape of the third wind shielding plate 115c is adapted to the shape of the edge of the air outlet 111b close to the third wind shielding plate 115c.

[0075] The shape of the third wind shield 115c is adapted to the shape of the edge of the air outlet 111b near the third wind shield 115c, so that the third wind shield 115c can completely cover the air outlet 111b, so that the gas flowing from the air inlet 111a to the air outlet 111b needs to pass through the gap above the third wind shield 115c to flow to the air outlet 111b, which can increase the flow to the heating device 114 and improve the air outlet efficiency. For example, when the air outlet 111b is a rectangular opening, the third wind shield 115c is a straight plate; when the air outlet 111b is a circular opening, the third wind shield 115c is an arc plate.

[0076] In an optional embodiment of the present application, the third wind shield 115c is vertically disposed on the inner wall of the housing 111 or is inclined toward a direction close to the air outlet 111b.

[0077] See also Figure 5 and Figure 6 , the angle between the third windshield 115c and the bottom wall of the shell 111 is 90° or about 90°. On the one hand, the third windshield 115c is perpendicular to the inner wall of the shell 111, which is convenient for processing the shell 111 and the windshield 115. On the other hand, the third windshield 115c at this time has less resistance to the airflow, and the loss of kinetic energy of the airflow when moving in the inner cavity 113 is small, and the cooling efficiency of the airflow on the heating device 114 can still be maintained at a high state. Of course, the third windshield 115c can also be tilted in the direction of the air outlet 111b to guide the airflow to the outer edge of the heating device 114, so as to avoid the windshield 115 from blocking the movement of the airflow too much and reducing the kinetic energy of the airflow and affecting the cooling efficiency of the heating device 114, and can also reduce the noise generated by the collision between the airflow and the windshield 115, so as to achieve a better cooling effect on the outer edge of the heating device 114.

[0078] In some embodiments, the gap 116 is 8 mm to 12 mm. When the airflow passes through the gap 116 with a spacing of 8 mm to 12 mm, the heat dissipation efficiency is high, and the gap 116 is not easy to generate noise, which can improve the comfort of use.

[0079] See also Figure 6In some embodiments, the wind shield 115 is located between the air inlet 111a and the air outlet 111b.

[0080] At this time, the air flow movement path when the air enters the inner cavity 113 from the air inlet 111a, passes through the gap 116, and then is discharged from the inner cavity 113 from the air outlet 111b is the shortest. Under the condition of the same air flow speed, the shorter the air flow movement path, the shorter the time the air stays in the inner cavity 113, and naturally the less heat the air absorbs in the inner cavity 113. The temperature rise of the air after flowing out from the air outlet 111b is not large, and the safety performance is high.

[0081] When the airflow path is long, the air in the inner cavity 113 absorbs relatively more heat, and the average temperature of the air in the inner cavity 113 is relatively high. The heat radiation efficiency of the heating device 114 to the air in the inner cavity 113 is reduced. Therefore, by shortening the path of the air flow, the time the air stays in the inner cavity 113 is shortened, and the air inlet 111a will continue to pass normal temperature air into the inner cavity 113. The average temperature of the air in the inner cavity 113 is relatively reduced, and the temperature difference between the temperature of the heating device 114 and the temperature of the air in the inner cavity 113 is large. The heat radiation efficiency of the heating device 114 is higher, and the cooling efficiency of the heating device 114 per unit time is higher.

[0082] In some embodiments, in the area between the wind shield 115 and the air inlet 111a, the distance between the outer shell 111 and the heating device 114 is a first distance, and in the area between the wind shield 115 and the air outlet 111b, the distance between the outer shell 111 and the heating device 114 is a second distance, and the gap 116 is smaller than both the first distance and the second distance.

[0083] There is a larger space between the housing 111 and the heating device 114, and a smaller space between the windshield 115 and the heating device 114. When the airflow flows from the larger space through the smaller space and then flows to the larger space, the Venturi effect is generated, so that the air flow rate at the gap 116 becomes larger, thereby improving the cooling efficiency. The air that contacts the heating device 114 through the gap 116 is closer to the heating device 114 than the air that contacts the heating device 114 without passing through the gap 116, and the heat radiation of the heating device 114 can be absorbed by the air to a greater extent. At the same time, the rapid flow of air at the gap 116 will also take away the heat generated by the heating device 114 more quickly. The gap 116 formed between the windshield 115 and the heating device 114 improves the heat dissipation efficiency of the heating device 114, which is conducive to the rapid cooling of the heating device 114, and reduces the time that the device in the cooking device 100 is still in a high temperature state after cooking is completed, thereby slowing down the speed of aging of the device in the cooking device 100 due to high temperature and improving the service life of the cooking device.

[0084] In some embodiments, the wind shield 115 covers the air inlet 111 a or the air outlet 111 b .

[0085] The windshield 115 covers the air inlet 111a or the air outlet 111b, which means that the windshield 115 completely separates the air inlet 111a from the air outlet 111b, so that the airflow entering the inner cavity 113 from the air inlet 111a can only flow to the air outlet 111b through the gap 116. For example, the windshield 115 is arranged around the air inlet 111a, and the windshields 115 are connected end to end, the air inlet 111a is located on the inner side of the windshield 115, and the air outlet 111b is located on the outer side of the windshield 115. At this time, the air enters the inner cavity 113 between the windshields 115 from the air inlet 111a, absorbs the heat in the middle of the heating element 114a, and then quickly flows out of the inner cavity 113 between the windshields 115 from the gap 116, and finally flows out from the air outlet 111b.

[0086] Of course, the wind shield 115 can also be arranged around the air outlet 111b, and the wind shield 115 can be connected end to end, the air outlet 111b is located on the inner side of the wind shield 115, and the air inlet 111a is located on the outer side of the wind shield 115. At this time, the normal temperature air will first absorb the heat from the outer edge of the heating element 114a and then enter the inner cavity 113 between the wind shields 115 through the gap 116 to cool the middle part of the heating element 114a.

[0087] In some embodiments, the air inlet 111a or the air outlet 111b located at the outer edge of the wind shield 115 can be set on one side of the wind shield 115. At this time, the airflow entering from the air inlet 111a mainly runs along the path from the air inlet 111a, the gap 116 and the air outlet 111b, which to a certain extent will cause the airflow to have a low cooling efficiency on the portion of the heating element 114a away from the air outlet 111b. Therefore, the side wall of the wind shield 115 that is not connected to the air outlet 111b and the inner wall of the housing 111 can be made to have a gap between the side wall and the inner wall of the housing 111. The spacing is 0-10mm, thereby forming a new slit, which is convenient for cooling the part of the heating element 114a away from the air outlet 111b. Considering that the size of the heating element 114a will not be too large, and the size of the wind shield 115 is not larger than the heating element 114a, the inner wall of the outer shell 111 can be provided with a shielding member 111c, and the shielding member 111c is arranged opposite to the wind shield 115, so that the spacing between the side wall of the wind shield 115 not connected to the air outlet 111b and the inner wall of the outer shell 111 is 0-10mm.

[0088] In other embodiments, the air inlet 111a or the air outlet 111b located on the outer edge of the wind shield 115 may include multiple air inlets 111a or air outlets 111b, which are spaced around the wind shield 115 to increase the flow direction of the airflow, so that the airflow can flow out from all sides of the wind shield 115. At the same time, the cooling effect around the heating element 114a is equivalent, thereby reducing the impact of the temperature difference caused by the cooling on the heating element 114a.

[0089] In some embodiments, the cooking appliance 100 further includes a fan 117 , which is disposed in the inner cavity 113 and located between the air inlet 111 a and the wind shield 115 .

[0090] The fan 117 allows air to flow from the air inlet 111a into the inner cavity 113, and for safety considerations, please refer to Figure 6 The fan 117 is disposed in the inner cavity 113 . In other embodiments, both the air inlet 111 a and the air outlet 111 b are provided with grilles to further improve the safety performance of the cooking appliance 100 .

[0091] See also Figure 6 The fan 117 is located between the air inlet 111a and the wind shield 115 to promote the airflow to flow along the air inlet 111a, the gap 116, and the air outlet 111b. While ensuring a high coverage rate of the heating device 114, the airflow running path is shortened to improve the cooling efficiency.

[0092] In some embodiments, when the air inlet 111a is located below the heating device 114, the fan 117 will cause the airflow to blow directly on the heating device 114. After the airflow contacts the surface of the heating element 114a of the heating device 114, it will move toward the outer edge of the heating element 114a and finally flow out from the gap 116 to the air outlet 111b.

[0093] In some embodiments, the fan 117 is installed on the outer shell 111 , the heating device 114 is installed on the inner shell 112 , and the fan 117 has an air guide plate 118 that is tilted toward the heating device 114 .

[0094] The heating device 114 is arranged on the inner shell 112, that is, the heating device 114 is installed on the outer wall of the inner shell 112, the wind shield 115 is arranged in the inner cavity 113, and the fan 117 is installed on the outer shell 111 and is located between the air inlet 111a and the wind shield 115. It can be understood that the fan 117 is arranged at a distance from the heating device 114 to provide space so that the airflow generated by the fan 117 can cover the heating device 114 in a larger range, thereby improving the heat dissipation efficiency of the heating device 114. Of course, in order to ensure that the airflow generated by the fan 117 can also smoothly cover the heating device 114, the fan 117 is also provided with a wind guide plate 118, which is a plate-shaped member and is inclined toward the heating device 114, that is, the wind guide plate 118 has a plane that guides the airflow to move toward the heating device 114. By guiding the airflow through the air guide plate 118, the airflow generated by the fan 117 running at a low speed or the fan 117 whose air outlet direction is not directly toward the heating device 114 can also flow along the air guide plate 118 to the heating device 114 to cool the heating device 114.

[0095] The inclination angle of the air guide plate 118 is different according to the relative positions of the fan 117 and the heating device 114. For example, when the fan 117 is located below the heating device 114, the inclination angle of the air guide plate 118 may be 90° to 120°, and the air guide plate 118 may be funnel-shaped so that the airflow can be evenly distributed to the heating device 114. In other embodiments, the fan 117 and the heating device 114 are staggered, that is, the projections of the fan 117 and the heating device 114 on the inner shell 112 overlap or do not overlap. In this case, the inclination angle of the air guide plate 118 is 150° to 180°, so that the air guide plate 118 can guide the airflow toward the middle of the heating device 114 or the end of the heating device 114 away from the fan 117, thereby ensuring the consistency of the overall heat dissipation effect of the heating device 114.

[0096] In some embodiments, the wind shield 115 and the fan 117 are located on different sides of the heating device 114 .

[0097] See also Figure 3 and Figure 6In the inner cavity 113, an IGBT (Insulated Gate Bipolar Transistor), a power board 119, and a heat sink for dissipating heat from the power board 119 are also disposed. In some embodiments, the IGBT, the power board 119, and the heat sink are all disposed on the outside of the side wall of the inner shell 112. Thus, when the fan 117 is disposed on one side of the heating device 114, the airflow generated by the fan 117 will also dissipate heat from the IGBT, the power board 119, and the heat sink along the space of the inner cavity 113. In some embodiments, the fan 117 may be directly located below the IGBT, the power board 119, and the heat sink.

[0098] At the same time, the airflow generated when the fan 117 is in operation has a better cooling effect on the side of the heating device 114 close to the fan 117. Therefore, the wind shield 115 is arranged on different sides of the heating device 114. When part of the airflow generated by the fan 117 flows to the gap 116 between the wind shield 115 and the heating device 114, the airflow speed is accelerated, which can improve the heat dissipation efficiency of the side of the heating device 114 away from the fan 117, which is beneficial to the rapid cooling of the heating device 114 as a whole, and reduces the time that the device in the cooking utensil 100 is still in a high temperature state after cooking is completed, thereby slowing down the aging rate of the device in the cooking utensil 100 due to high temperature and increasing the service life of the cooking device.

[0099] In some embodiments, the projection of the heating element 114a on the housing 111 is located between the air inlet 111a and the air outlet 111b, the fan 117 is disposed close to the air inlet 111a, and at least part of the wind shield 115 is disposed close to the air outlet 111b.

[0100] The projection of the heating element 114a on the housing 111 is located between the air inlet 111a and the air outlet 111b, that is, the moving direction of the airflow in the inner cavity 113 will cross the heating device 114, and the contact area between the airflow and the heating device 114 will be increased, which can improve the heat dissipation efficiency of the airflow to the heating device 114.

[0101] The fan 117 is arranged near the air inlet 111a, and the air outlet 111b is arranged far away from the fan 117, so that the wind shield 115 is at least partially arranged near the air outlet 111b so that the side of the heating device 114 far away from the fan 117 can obtain a higher cooling efficiency through the gap 116, ensuring the rapid cooling of the heating device 114 as a whole. The wind shield 115 can also have a portion arranged near the air inlet 111a, in which case the wind shield 115 is not flat, and the side of the wind shield 115 facing the fan 117 forms a cavity to gather airflow, which can increase the amount of airflow passing through the gap 116, thereby improving the heat exchange efficiency in the inner cavity 113 and improving the cooling efficiency of the heating device 114.

[0102] In some embodiments, the heating device 114 at least includes a heating element 114a, the heating element 114a is circular, and the fan 117 and the wind shield 115 are respectively located in two different radius areas of the same diameter of the heating element 114a.

[0103] The heating element 114a of the measuring device is the main heat-generating component for heating the pot body. The shape of the heating element 114a matches the bottom wall of the inner shell 112. The heating element 114a is circular. When the fan 117 is not coaxial with the heating element 114a and the air outlet 111b is not arranged around the fan 117, the airflow generated by the fan 117 has different cooling effects on different sides of the heating element 114a. Therefore, the fan 117 and part of the wind shield 115 are respectively located in two different radius areas of the same diameter of the heating element 114a. It can be understood that the two ends of the heating element 114a in the diameter direction are the two ends farthest apart. When the fan 117 is located on one side of the heating element 114a, a wind shield 115 is provided on the other side of the heating element 114a in the diameter direction opposite to the side, so that the farthest end of the wind shield 115 away from the fan 117 can also be quickly cooled down through the Venturi effect generated by the gap 116, thereby improving the overall cooling efficiency of the heating element 114a.

[0104] In other embodiments, the fan 117 is installed at the air inlet 111 a , and both ends of the wind shield 115 are respectively connected to the fan 117 .

[0105] The two ends of the wind shield 115 are respectively connected to the fan 117. At this time, the fan 117 is at least partially located in the area enclosed by the wind shield 115. The wind shield 115 at least limits the flow direction of the airflow output by the fan 117 to a certain extent, so that at least part of the airflow output by the fan 117 must first flow into the area enclosed by the wind shield 115, and then flow out to the air outlet 111b through the gap 116, thereby improving the pass rate of the airflow flowing out through the gap 116, thereby improving the heat dissipation efficiency of the heating device 114.

[0106] In some other embodiments, the cooking appliance 100 further includes a first operation interface 160 , which is installed on the housing 111 .

[0107] See also Figure 1 , Figure 2 and Figure 6The first operation interface 160 is used to input or display information for controlling the cooking appliance 100. The first operation interface 160 has at least one button for operation. Therefore, when the airflow flows in the inner cavity 113, the airflow can also take away the heat of the first operation interface 160 and quickly transport the heat out of the inner cavity 113 through the gap 116, ensuring that after the heating device 114 is turned off, the inner cavity 113 can be quickly cooled down, reducing the impact of the high temperature of the heating device 114 on the first operation interface 160, IGBT, power board 119, heat sink and other devices, thereby improving the service life of the first operation interface 160, IGBT, power board 119, heat sink and other devices.

[0108] In some other embodiments, the cooking appliance 100 further includes a first operation interface 160 and a second operation interface 170 . The first operation interface 160 is installed on the housing 111 , and the second operation interface 170 is installed on the upper cover 120 .

[0109] See also Figure 1 , Figure 2 Function keys such as frying, stir-frying, and collecting sauce are set on the first operation interface 160, and function keys such as simmering, boiling, and stewing are set on the second operation interface 170, so that the cooking utensil 100 of the present application can perform pre-processing of some ingredients when the lid is opened, and perform subsequent processing such as simmering on the ingredients after the lid is closed, which facilitates the use of the cooking utensil 100 of the present application and improves the user experience.

[0110] In some embodiments, function keys such as frying, stir-frying, and collecting sauce are set on the first operation panel 160, and function keys such as stewing, boiling, and stewing are set on the second operation panel 170, so that the cooking utensil 100 of the present application can perform pre-processing of some ingredients when the lid is opened, and perform subsequent processing such as stewing of the ingredients after the lid is closed, which facilitates the use of the cooking utensil 100 of the present application and improves the user experience. Since functions such as frying, stir-frying, and collecting sauce require the lid to be opened, the above cooking process can be defined as cooking with the lid opened. Functions such as stewing, boiling, and stewing require the lid to be closed, the above cooking process can be defined as cooking with the lid closed.

[0111] Specifically, when only the lid is needed for cooking, the upper cover 120 opens the pot body 110, and the corresponding function in the first operation panel 160 is selected, so that the cooking utensil 100 can cook the food early. When only the lid is needed for cooking, the upper cover 120 is buckled on the pot body 110 to close the pot body 110, so that the food is in the closed cavity formed by the inner pot, the pot cover, and the sealing ring, and then the corresponding function in the second operation panel 170 is selected, and the characteristics of high temperature and uniform temperature field distribution of cooking with the lid closed are fully utilized to achieve fast cooking, so that the cooking utensil can not only achieve cooking with the lid closed, but also achieve the function of cooking. The first operation panel 160 and the second operation panel 170 are used to respectively control the functions of the cooking utensil, so that the user can more conveniently control and adjust the cooking process, and the user can achieve multiple cooking functions at the same time, which expands the function of the cooking utensil, improves cooking efficiency and quality, and improves the user experience.

[0112] When it is necessary to cook with the lid open first and then with the lid closed: when frying, deep-frying, or stir-frying the food, the upper cover 120 opens the pot body 110, and the corresponding function in the first operation panel 160 is selected to allow the cooking utensils to cook the food early. When the food reaches the desired cooking effect, the upper cover 120 is snapped onto the pot body 110 to close the pot body 110, so that the food is in the closed cavity formed by the inner pot, the pot cover, and the sealing ring, and then the corresponding function in the second operation panel 170 is selected to make full use of the high temperature and uniform temperature field distribution of cooking with the lid closed, so as to achieve fast cooking, so that the cooking utensils can not only achieve cooking with the lid closed, but also achieve the function of cooking. Through the coordinated work of the first operation panel 160 and the second operation panel 170, the function control of the cooking utensils is realized, so that the user can more conveniently control and adjust the cooking process, and the user can realize multiple cooking functions at the same time, which expands the function of the cooking utensils, improves cooking efficiency and quality, and improves the user experience.

[0113] When it is necessary to cook with the lid closed first and then with the lid open: when cooking with the lid closed, snap the upper cover 120 onto the pot body 110 to close the pot body 110, so that the food is in the closed cavity formed by the inner pot, the pot lid, and the sealing ring, and then select the corresponding function in the second operation panel 170, making full use of the characteristics of high temperature and uniform temperature field distribution of cooking with the lid closed to achieve fast cooking. When the food reaches the desired cooking effect, the upper cover 120 opens the pot body 110, and selects the corresponding function in the first operation panel 160, so that the cooking utensil can collect juice from the food, or the user can stir-fry the food, so that the cooking utensil can not only cook with the lid, but also collect juice or stir-fry. Through the coordinated work of the first operation panel 160 and the second operation panel 170, the function control of the cooking utensil is realized, so that the user can more conveniently control and adjust the cooking process, and the user can realize multiple cooking functions at the same time, which expands the function of the cooking utensil, improves cooking efficiency and quality, and improves the user experience.

[0114] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0115] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0116] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cooking utensil, characterized in that: include: An outer shell (111) and an inner shell (112), wherein the outer shell (111) and the inner shell (112) are connected to form an inner cavity (113), and the outer shell (111) has an air inlet (111a) and an air outlet (111b) that are in communication with the inner cavity (113); A heating device (114) installed in the inner cavity (113); A windshield member (115) is installed in the inner cavity (113); the projections of the windshield member (115) and the heating device (114) on the inner shell (112) at least partially overlap, and a gap (116) is provided between the windshield member (115) and the heating device (114), so that airflow entering the inner cavity (113) from the air inlet (111a) flows toward the air outlet (111b) through the gap (116).

2. The cooking device according to claim 1, characterized in that: The wind shield (115) is mounted on the outer shell (111), and the heating device (114) is mounted on the inner shell (112).

3. The cooking device according to claim 2, characterized in that: The wind shield (115) is protruding from the outer shell (111), and the gap (116) is smaller than the distance between the outer shell (111) and the heating device (114).

4. The cooking device according to claim 2, characterized in that: The wind shield (115) is located below the heating device (114).

5. The cooking device according to claim 4, characterized in that: The heating device (114) comprises at least a heating element (114a), the heating element (114a) is circular, and the projection of the wind shield (115) on the heating element (114a) is at least partially located within a region of 1 / 2 radius to 1 times radius of the heating element (114a).

6. The cooking device according to claim 4, characterized in that: The heating device (114) comprises at least a heating element (114a), and the projection shape of the wind shield (115) on the heating element (114a) is at least partially adapted to the shape of the heating element (114a).

7. The cooking device according to claim 1, characterized in that: The gap (116) is 8 mm to 12 mm.

8. The cooking utensil according to any one of claims 1 to 7, characterized in that: At least a portion of the wind shield (115) is located between the air inlet (111a) and the air outlet (111b).

9. The cooking device according to claim 8, characterized in that: The wind shield (115) comprises a first wind shield (115a), a second wind shield (115b) and a third wind shield (115c); the third wind shield (115c) is arranged between the first wind shield (115a) and the second wind shield (115b); the third wind shield (115c) is located between the air inlet (111a) and the air outlet (111b), so that the first wind shield (115a), the second wind shield (115b) and the third wind shield (115c) form a chamber (115d) for guiding airflow to move toward the heating device (114).

10. The cooking appliance according to claim 9, characterized in that The third wind shield (115c) is arranged vertically on the inner wall of the outer shell (111) or is arranged obliquely in a direction close to the air outlet (111b).

11. The cooking device according to claim 9, characterized in that: The shape of the third wind deflector (115c) is adapted to the shape of the edge of the air outlet (111b) close to the third wind deflector (115c).

12. The cooking appliance according to claim 8, characterized in that In the area between the wind shield (115) and the air inlet (111a), the distance between the housing (111) and the heating device (114) is a first distance, and in the area between the wind shield (115) and the air outlet (111b), the distance between the housing (111) and the heating device (114) is a second distance, and the gap (116) is simultaneously smaller than the first distance and the second distance.

13. The cooking appliance according to claim 8, characterized in that The wind shield (115) covers the air inlet (111a) or the air outlet (111b).

14. The cooking device according to claim 5 or 6, characterized in that: The cooking appliance (100) further comprises a fan (117), wherein the fan (117) is arranged in the inner cavity (113) and is located between the air inlet (111a) and the wind shield (115).

15. The cooking appliance according to claim 14, characterized in that The fan (117) is mounted on the outer shell (111), the heating device (114) is mounted on the inner shell (112), and the fan (117) has an air guide plate (118) arranged obliquely toward the heating device (114).

16. The cooking appliance according to claim 15, characterized in that The inclination angle of the air guide plate (118) is 150° to 180°.

17. The cooking appliance according to claim 14, characterized in that The wind shield (115) and the fan (117) are located on different sides of the heating device (114).

18. The cooking appliance according to claim 14, characterized in that The projection of the heating element (114a) on the housing (111) is located between the air inlet (111a) and the air outlet (111b), the fan (117) is arranged close to the air inlet (111a), and at least a portion of the wind shield (115) is arranged close to the air outlet (111b).

19. The cooking appliance according to claim 14, characterized in that The heating device (114) comprises at least a heating element (114a), the heating element (114a) is circular, and parts of the fan (117) and the wind shield (115) are respectively located in two different radius areas of the same diameter of the heating element (114a).

20. The cooking appliance according to claim 14, characterized in that The fan (117) is installed at the air inlet (111a), and both ends of the wind shield (115) are respectively connected to the fan (117).

21. The cooking utensil according to any one of claims 1 to 7, characterized in that: The cooking appliance (100) further comprises a first operation interface (160), wherein the first operation interface (160) is installed on the housing (111).

22. The cooking utensil according to any one of claims 1 to 7, characterized in that: The cooking appliance (100) further comprises an upper cover (120), a first operation interface (160) and a second operation interface (170); the upper cover (120) is connected to the outer shell (111) or the inner shell (112); the first operation interface (160) is installed on the outer shell (111); and the second operation interface (170) is installed on the upper cover (120).

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