cooking utensils
By using the same fan in the electric pressure cooker to dissipate heat to the inner pot and the power board, the problem of low heat dissipation efficiency of the inner pot is solved, and the effect of rapid pressure reduction and compact structure is achieved, which improves the user experience.
Patent Information
- Application Number
- CN201911047988.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-10-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2039-10-30
AI Technical Summary
After the cooking of the existing electric pressure cooker is completed, the inner pot has low heat dissipation efficiency, and it takes a long time to wait for the pressure reduction. The cooling fan is insufficient, which affects the safety and convenience of users.
The same fan is used to dissipate heat at the same time to the inner pot and the power plate. The inner pot is set in the insulation cover assembly. The air blown by the fan dissipates heat through the space between the insulation cover assembly and the inner pot. Another part of the wind blows to the power plate for heat dissipation, and the space is separated by a sealing ring to extend the residence time of the wind to enhance the heat dissipation effect.
It realizes efficient heat dissipation of the inner pot and power board, shortens the pressure reduction time, improves the overall performance and structural compactness of the cooking utensils, and improves user safety and convenience.
Smart Images

Figure CN112741489B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of small household appliances, and in particular to a cooking utensil. Background Art
[0002] The electric pressure cooker is an upgraded product of the traditional pressure cooker and electric rice cooker. It combines the advantages of pressure cookers and electric rice cookers, completely solves the safety problems of pressure cookers, eliminates the safety hazards of ordinary pressure cookers that have troubled consumers for many years, saves time and electricity, is automatic and convenient, and is durable.
[0003] An electric pressure cooker typically consists of an outer shell, an insulation cover, an inner pot, a heating device, and a lid. When cooking is complete, the lid must be opened to remove the food. Because of the high-temperature, high-pressure gas inside, the pressure must be released or the inner pot must be allowed to cool naturally. Wait until the pressure drops before opening the lid. During pressure release, liquid food inside the pot can be easily dislodged by the high-pressure gas, potentially scalding the user. Natural cooling, however, requires a long wait, which doesn't meet user needs.
[0004] To address this issue, some related technologies include providing a cooling air duct between the inner pot and the heat-insulating cover. A cooling fan then draws air from outside the pressure cooker into the duct to dissipate heat from the inner pot, thereby rapidly reducing the pressure on the food inside. However, these solutions only dissipate heat from the inner pot and lack sufficient utilization of the cooling fan. Summary of the Invention
[0005] The main purpose of the present invention is to provide a cooking appliance to solve the problem of insufficient utilization of cooling fans in the prior art.
[0006] In order to achieve the above-mentioned objectives, the present invention provides a cooking utensil, comprising: an outer pot, comprising an outer shell and a heat-insulating cover assembly arranged in the outer shell, the outer shell being provided with an air inlet and an air outlet, and the heat-insulating cover assembly being provided with a first flow port; an inner pot being arranged in the heat-insulating cover assembly; a pot cover, which is provided on the outer pot and the inner pot; a fan, which is arranged in the outer shell, the air inlet of the fan being connected to the air inlet of the outer shell, and the air outlet of the fan being connected to the first flow port; a power board, which is arranged in the outer shell; wherein a part of the wind blown out from the air outlet of the fan is blown between the heat-insulating cover assembly and the inner pot, and the other part is blown to the power board and flows out from the air outlet of the outer shell.
[0007] By applying the technical solution of the present invention, the same fan is used to dissipate heat from the inner pot and the power board at the same time. Specifically, the inner pot is arranged in the heat-insulating assembly, and there is a space between the inner pot and the heat-insulating assembly. A portion of the wind blown out by the fan can flow into this space through the first flow port on the heat-insulating cover assembly. At this time, the wind flows in the space, which can reduce the temperature of the inner pot and effectively dissipate the heat from the inner pot. On the other hand, another portion of the wind blown out by the fan can be blown to the power board to dissipate heat from the power board. It can be seen from this that the fan of the present application can simultaneously dissipate heat from the inner pot and the power board, and the fan is fully utilized, so that the overall performance of the cooking appliance is improved and the structure is more compact.
[0008] The cooking appliance further includes a sealing ring disposed on the heat-insulating cover assembly and / or the inner pot to separate the space between the heat-insulating cover assembly and the inner pot into an upper space and a lower space. The sealing ring is provided with a notch or a through hole connecting the upper and lower spaces. The provision of the sealing ring can extend the time that air remains in the space between the heat-insulating cover assembly and the inner pot, thereby improving heat dissipation.
[0009] Furthermore, the insulation cover assembly includes an insulation cover and a mid-plate structure mounted on top of the insulation cover. A sealing ring is mounted on the insulation cover assembly and fixed to the insulation cover and / or the mid-plate structure. The inner ring of the sealing ring has an interference fit with the inner pot, and the first flow port is provided on the insulation cover. This interference fit improves the sealing effect of the sealing ring and thus the overall heat dissipation effect. Furthermore, the interference fit structure is simple, making installation and maintenance easy.
[0010] Furthermore, the first flow opening includes a plurality of through holes arranged in parallel, each through hole being arc-shaped. The above structure is simple, ensures the air intake effect under a limited air intake area, and this structure can take into account the structural strength of the heat preservation cover assembly.
[0011] Furthermore, the heat preservation cover is provided with an air guide concave portion, which is located below the notch or the through hole. The above structure increases the space below the notch or the through hole so that the wind can be gathered there and flow out through the notch or the through hole.
[0012] Furthermore, the outer pot includes a front portion and a rear portion relative to each other, the fan is disposed at the rear portion of the outer pot, and the notch or through hole is disposed at the front portion of the outer pot. This structure allows the fan to be spaced farther from the notch or through hole, thereby effectively extending the time that air remains in the space between the heat-insulating cover assembly and the inner pot, thereby ensuring effective heat dissipation.
[0013] Furthermore, the wind flowing out from the notch or the through hole is discharged from the rear of the outer pot. The above structure can effectively protect the user from being scalded by the hot wind flowing out.
[0014] Furthermore, the cooking appliance further includes a heating device disposed at the bottom of the heat-insulating cover assembly, with a distance between the heating device and the bottom of the inner pot. The aforementioned structure allows air to flow through the space between the heating device and the bottom of the inner pot, while also dissipating heat from the heating device.
[0015] Furthermore, the cooking appliance further includes a heating device and a bracket. The heating device is disposed at the bottom of the heat-insulating cover assembly. The bracket is connected to the heating device and is located circumferentially outside the heating device. The power board and the fan are both connected to the bracket. The bracket is provided with a second flow port, which connects the air outlet of the fan and the first flow port. The bracket has a simple structure.
[0016] The cooking appliance further includes a baffle movably disposed at the second flow opening, the baffle having a blocking position for blocking the second flow opening and a retracting position for avoiding the second flow opening. The baffle can avoid or block the second flow opening, thereby controlling whether air blown by the fan enters between the heat-insulating cover assembly and the inner pot.
[0017] Furthermore, the power board has a heat dissipation portion, the IGBT module is arranged on the power board, and the heat dissipation portion is arranged in close contact with the IGBT module. The arrangement of the heat dissipation portion can better dissipate heat for the IGBT module.
[0018] Furthermore, the mid-plate structure includes an annular portion and a downwardly extending cylindrical portion, with a sealing ring sandwiched between the cylindrical portion and the heat-insulating cover; a first step surface is provided at the top of the heat-insulating cover, and a second step surface is provided on the sealing ring to abut against the first step surface; a first positioning notch is provided at the top of the heat-insulating cover, and a second positioning notch is provided on the sealing ring to cooperate with the first positioning notch, and the second positioning notch is connected to the notch or through-hole; the air inlet and air outlet directions of the fan are parallel to the axis of the fan, and the axis of the fan is arranged in the horizontal direction, and the projection of the heating device in the horizontal plane does not overlap with the projection of the fan in the horizontal plane. The above-mentioned first step surface and second step surface can play a positioning role. Moreover, the fan is located on the side of the heating device, which can reduce the height of the cooking appliance. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:
[0020] Figure 1 shows a schematic cross-sectional view of an embodiment of a cooking appliance according to the present invention;
[0021] Figure 2 Shown Figure 1 A partial enlarged view of a cooking utensil at point A;
[0022] Figure 3 Shown Figure 1 Schematic diagram of the exploded structure of the cooking appliance;
[0023] Figure 4 Shown Figure 3 A schematic diagram of the three-dimensional structure of a sealing ring of a cooking utensil;
[0024] Figure 5 Shown Figure 3 A schematic diagram of the three-dimensional structure of the thermal insulation cover;
[0025] Figure 6 Shown Figure 3 Schematic diagram of the three-dimensional structure of the bracket;
[0026] Figure 7 Shown Figure 3 A schematic diagram of the three-dimensional structure of the bracket from another perspective; and
[0027] Figure 8 Shown Figure 3 Schematic diagram of the three-dimensional structure of the base of the outer pot.
[0028] The above drawings include the following reference numerals:
[0029] 111. Air inlet; 121. Air outlet; 13. Outer casing; 14. Insulation cover; 141. First flow port; 141a. Through hole; 143. First positioning recess; 144. Air guide recess; 15. Middle plate structure; 151. Ring portion; 152. Cylinder portion; 16. Heating device; 20. Power supply board; 21. Heat dissipation portion; 22. IGBT module; 30. Fan; 40. Air outlet duct; 52. Second wind shield; 70. Inner pot; 80. Sealing ring; 81. Upper space; 82. Lower space; 83. Notch; 84. Second positioning recess. DETAILED DESCRIPTION
[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0033] like Figure 1 and Figure 2 As shown, the cooking appliance of this embodiment includes: an outer pot, an inner pot 70, a pot lid, a fan 30, and a power board 20. The outer pot includes an outer shell 13 and a heat-insulating cover assembly disposed within the outer shell 13. The outer shell 13 is provided with an air inlet 111 and an air outlet 121, and the heat-insulating cover assembly is provided with a first flow port 141. The inner pot 70 is disposed within the heat-insulating cover assembly. The pot lid is disposed over the outer pot and the inner pot. The fan 30 is disposed within the outer shell 13. The air inlet of the fan 30 is connected to the air inlet 111 of the outer shell 13, and the air outlet of the fan 30 is connected to the first flow port 141. The power board 20 is disposed within the outer shell 13. Part of the air blown out from the air outlet of the fan 30 is blown between the heat-insulating cover assembly and the inner pot 70, while the other part is blown to the power board 20 and flows out from the air outlet 121 of the outer shell.
[0034] By applying the technical solution of this embodiment, the same fan 30 is used to dissipate heat for the inner pot 70 and the power board 20 at the same time. Specifically, the inner pot 70 is arranged in the heat preservation component, and there is a space between the inner pot 70 and the heat preservation component. A part of the wind blown out by the fan 30 can flow into this space through the first flow port 141 on the heat preservation cover component. At this time, the wind flows in the space, which can reduce the temperature of the inner pot 70 and effectively dissipate the heat for the inner pot 70. On the other hand, another part of the wind blown out by the fan 30 can be blown to the power board 20 to dissipate heat for the power board 20. It can be seen from this that the fan 30 of the present application can achieve heat dissipation for the inner pot 70 and the power board 20 at the same time, and the fan 30 is fully utilized, so that the overall performance of the cooking appliance is improved and the structure is more compact.
[0035] like Figure 2 and Figure 4 As shown, in this embodiment, the cooking appliance further includes a sealing ring 80, which is disposed on the heat-insulating cover assembly to separate the space between the heat-insulating cover assembly and the inner pot 70 into an upper space 81 and a lower space 82. A notch 83 is provided on the sealing ring 80, connecting the upper space 81 and the lower space 82. The sealing ring 80 divides the space between the heat-insulating cover assembly and the inner pot 70 into the upper space 81 and the lower space 82. The provision of the sealing ring prolongs the time that air remains in the space between the heat-insulating cover assembly and the inner pot, thereby improving heat dissipation. The air first dissipates heat in the lower space before flowing through the notch or hole to the upper space, dissipating heat there. The temperature of the inner pot in the lower space is higher than that in the upper space. Dissipating heat from the lower space first effectively removes a large amount of heat, resulting in improved heat dissipation. Furthermore, the above structure is simple and easy to install.
[0036] In an embodiment not shown in the figure, the sealing ring can also be set on the inner pot. In this case, the sealing ring needs to be fixed on the inner pot, and can also separate the upper and lower parts of the space. The effect is similar to that of setting the sealing ring on the insulation cover assembly.
[0037] In an embodiment not shown in the figure, the sealing ring may be provided with a through hole instead of a notch, and the upper space and the lower space may be connected through the through hole. The provision of the through hole can also achieve air circulation.
[0038] like Figure 3 and Figure 5 As shown, applying the technical solution of this embodiment, the heat-insulating cover assembly includes a heat-insulating cover 14 and a middle plate structure 15 disposed on the top of the heat-insulating cover 14. The sealing ring 80 is disposed on the heat-insulating cover assembly and fixed to the heat-insulating cover 14. The inner ring of the sealing ring 80 has an interference fit with the inner pot 70. The first flow port 141 is provided on the heat-insulating cover 14. The interference fit structure is simple and easy to implement.
[0039] In an embodiment not shown in the figures, the sealing ring may also be provided on the mid-plate structure.
[0040] like Figure 5 As shown, in this embodiment, the first flow opening 141 includes multiple parallel through holes 141a, each of which is arc-shaped. The arc-shaped arrangement of the first flow opening 141 maximizes the ventilation area within a fixed area, improving ventilation. The arc-shaped shape also increases the overall structural strength, making it less susceptible to damage.
[0041] like Figure 4 and Figure 5 As shown, in this embodiment, the heat preservation cover 14 is provided with an air guide recess 144, which is located below the notch 83. The air guide recess 144 is provided below the notch 83, and the wind gathers at the air guide recess 144 and then flows out through the notch 83, so that the heat dissipation effect is better.
[0042] like Figure 1 As shown, in this embodiment, the outer pot includes opposing front and rear portions. The fan 30 is located at the rear portion of the outer pot, and the notch 83 or through-hole is located at the front portion of the outer pot. Generally speaking, the front portion of a cooking appliance is the side facing the user. The front portion typically houses a control panel or lid opening button on the outer pot or lid. In this embodiment, the lid and outer pot are connected by a pivot structure, with the side where the pivot structure is located being the rear portion.
[0043] like Figure 1 As shown, in this embodiment, the air flowing out from the notch 83 is discharged from the rear of the outer pot. Exhausting the air from the rear can effectively prevent the gas from flowing out and scalding the user, so that the user can get a better user experience.
[0044] like Figure 1 、 Figure 3 and Figure 7 As shown, in this embodiment, the cooking appliance further includes a heating device 16, which is disposed at the bottom of the heat-insulating cover 14. There is a distance between the heating device 16 and the bottom of the inner pot 70. This distance serves to allow ventilation. Air flowing through the bottom of the inner pot can carry away a large amount of heat, thereby achieving a heat dissipation effect.
[0045] In an embodiment not shown in the figures, the cooking appliance further comprises a baffle which is movably arranged at the second flow opening, and the baffle has a blocking position for blocking the second flow opening and a avoiding position for avoiding the second flow opening. The baffle can avoid or block the second flow opening, and can control whether the wind blown by the fan enters between the heat preservation cover assembly and the inner pot. When the power board needs to dissipate heat but the inner pot does not, the baffle is placed in the blocking position. When both the power board and the inner pot need to dissipate heat, the baffle is placed in the avoiding position. Of course, when the baffle is in the avoiding position, the size of the second flow opening can be adjusted as needed, thereby controlling the amount of wind used to dissipate heat for the inner pot.
[0046] In this embodiment, the power board 20 has a heat dissipation portion 21, and an IGBT module 22 is disposed on the power board 20. The heat dissipation portion 21 is disposed in close contact with the IGBT module 22. The IGBT module 22 has a good heat dissipation effect, which is beneficial to the heat dissipation of the power board.
[0047] like Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, in this embodiment, the mid-plate structure 15 includes an annular portion 151 and a downwardly extending cylindrical portion 152. The sealing ring 80 is sandwiched between the cylindrical portion 152 and the thermal insulation cover 14, thereby facilitating the fixing of the sealing ring 80 and simplifying the assembly process. The thermal insulation cover 14 has a first stepped surface at its top end, and the sealing ring 80 has a second stepped surface that abuts the first stepped surface. The thermal insulation cover 14 has a first positioning notch 143 at its top end, and the sealing ring 80 has a second positioning notch 84 that cooperates with the first positioning notch 143. The second positioning notch 84 is connected to the notch 83 or the via hole. The above structure facilitates the positioning of the sealing ring 80 and the thermal insulation cover 14.
[0048] like Figure 1 As shown, in this embodiment, the air inlet and outlet directions of the fan 30 are parallel to the axis of the fan 30, and the axis of the fan 30 is arranged in a transverse direction. The projection of the heating device 16 in the horizontal plane does not coincide with the projection of the fan 30 in the horizontal plane. The fan 30 is located to the side of the heating device 16, which can reduce the height of the cooking appliance.
[0049] It should be noted that the above-mentioned "lateral direction" is along the horizontal direction or the angle with the horizontal direction is within 30 degrees. Of course, it is preferably along the horizontal direction, at this time the ventilation effect and the heat dissipation effect are the best.
[0050] like Figure 1As shown, in this embodiment, the heat dissipation portion 21 has a heat dissipation channel, and the fan 30 is located on a first side of the heat dissipation portion 21. The cooking appliance also includes an air outlet duct 40 located on a second side of the heat dissipation portion opposite the first side. The air outlet direction of the fan 30 is parallel to the extension direction of the heat dissipation channel, and at least a portion of the air outlet duct 40 extends parallel to the extension direction of the heat dissipation channel.
[0051] like Figure 1 and Figure 2 As shown, in this embodiment, the fan 30 is disposed on the first side of the heat dissipation portion 21 of the power board 20. The fan 30's airflow direction is parallel to the extension direction of the heat dissipation channel of the heat dissipation portion 21. This allows the air blown by the fan to better enter the heat dissipation channel of the heat dissipation portion 21. The heat dissipation channel increases the contact area between the air and the heat dissipation portion 21, thereby improving the heat dissipation effect. The fan's airflow direction, the heat dissipation channel, and the air outlet duct 40 are arranged in parallel, allowing the air blown by the fan 30 to flow out of the air outlet duct 40 more smoothly. In this way, the fan 30 can quickly and efficiently reduce the temperature of the heat dissipation portion, thereby reducing the temperature of the power board 20, effectively solving the problem of poor heat dissipation shortening the service life of cooking utensils in the related art. The heat dissipation portion 21 includes a plurality of heat dissipating fins arranged at intervals, and the gaps between the fins form heat dissipation channels.
[0052] like Figure 1 and Figure 2 As shown, in this embodiment, the cooking appliance further includes a first wind-shielding rib disposed on the bottom wall of the housing 13 and extending upward. The first wind-shielding rib is provided corresponding to the heat dissipation portion. The air inlet and outlet of the housing are located on opposite sides of the first wind-shielding rib along the axis of the fan. Located at the bottom of the heat dissipation portion, the first wind-shielding rib effectively controls the direction of airflow, ensuring that air flows completely through the heat dissipation portion without backflow, thereby improving heat dissipation.
[0053] like Figure 1 and Figure 2 As shown, in this embodiment, the distance between the top of the first wind shielding rib and the heat dissipation portion 21 is less than or equal to 5 mm. The above structure can effectively prevent backflow on the one hand, and on the other hand, it can take into account the assembly process and avoid interference between the first wind shielding rib and the heat dissipation portion during assembly.
[0054] like Figure 8 As shown, in this embodiment, the cooking appliance further includes a second wind shielding rib 52 disposed on the bottom wall of the housing 13 and extending downward. The second wind shielding rib 52 is located between the air inlet 111 and the air outlet 121 of the housing. The second wind shielding rib 52 can prevent the hot air flowing out of the air outlet 121 from being sucked back into the air inlet 111.
[0055] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.
[0058] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.
Claims
1. A cooking utensil, characterized in that: include: The outer pot comprises an outer shell (13) and a heat-insulating cover assembly disposed in the outer shell (13), wherein the outer shell (13) is provided with an air inlet (111) and an air outlet (121), and the heat-insulating cover assembly is provided with a first flow port (141); An inner pot (70) is arranged in the heat-insulating cover assembly; a pot cover, which is provided on the outer pot and the inner pot (70); A fan (30) is disposed in the housing (13), an air inlet of the fan (30) is in communication with the air inlet (111) of the housing (13), and an air outlet of the fan (30) is in communication with the first flow port (141); a power supply board (20), the power supply board (20) being arranged in the housing (13); a sealing ring (80), the sealing ring (80) being arranged on the heat-insulating cover assembly and / or the inner pot (70) to separate the space between the heat-insulating cover assembly and the inner pot (70) into an upper space (81) and a lower space (82), the sealing ring (80) being provided with a notch (83) or a through hole communicating the upper space (81) and the lower space (82); Part of the wind blown out from the air outlet of the fan (30) is blown to the lower space (82), and the other part is blown to the power board (20) and flows out from the air outlet (121) of the housing (13).
2. The cooking appliance according to claim 1, wherein The heat-insulating cover assembly comprises a heat-insulating cover (14) and a middle plate structure (15) arranged on the top of the heat-insulating cover (14); the sealing ring (80) is arranged on the heat-insulating cover assembly and fixed on the heat-insulating cover (14) and / or the middle plate structure (15); the inner ring of the sealing ring (80) is interference-fitted with the inner pot (70); and the first flow port (141) is arranged on the heat-insulating cover (14).
3. The cooking appliance according to claim 2, wherein: The first flow opening (141) comprises a plurality of through holes (141a) arranged in parallel, and each through hole (141a) is arc-shaped.
4. The cooking appliance according to claim 2, wherein: An air guide recess (144) is provided on the heat-insulating cover (14), and the air guide recess (144) is located below the notch (83) or the through hole.
5. The cooking appliance according to claim 1, wherein The outer pot comprises a front portion and a rear portion relative to each other, the fan (30) is arranged at the rear portion of the outer pot, and the notch (83) or the through hole is arranged at the front portion of the outer pot.
6. The cooking appliance according to claim 5, characterized in that The wind flowing out from the notch (83) or the through hole is discharged from the rear of the outer pot.
7. The cooking appliance according to claim 1, wherein The cooking appliance further comprises a heating device (16), the heating device (16) being arranged at the bottom of the heat-insulating cover assembly, and a distance being provided between the heating device (16) and the bottom of the inner pot (70); the heating device (16) being an IH heating device.
8. The cooking appliance according to claim 1, wherein The cooking appliance further comprises a heating device (16) and a bracket (60), wherein the heating device (16) is arranged at the bottom of the heat-insulating cover assembly, and the bracket (60) is connected to the heating device (16) and is located on the circumferential outside of the heating device (16). The power supply board (20) and the fan (30) are both connected to the bracket (60), and a second flow port is provided on the bracket (60), wherein the second flow port communicates with the air outlet of the fan (30) and the first flow port (141).
9. The cooking appliance according to claim 8, characterized in that The cooking appliance further includes a baffle, which is movably disposed at the second flow opening. The baffle has a blocking position for blocking the second flow opening and a avoiding position for avoiding the second flow opening.
10. The cooking appliance according to claim 1, wherein The power board (20) has a heat dissipation portion (21), an IGBT module (22) is provided on the power board (20), and the heat dissipation portion (21) and the IGBT module (22) are arranged in close contact with each other.
11. The cooking appliance according to claim 2, wherein The middle plate structure (15) comprises an annular portion (151) and a downwardly extending cylindrical portion (152), and the sealing ring (80) is sandwiched between the cylindrical portion (152) and the heat-insulating cover (14); The top of the heat-insulating cover (14) is provided with a first step surface, and the sealing ring (80) is provided with a second step surface abutting against the first step surface; the top of the heat-insulating cover (14) is provided with a first positioning notch (143), and the sealing ring (80) is provided with a second positioning notch (84) cooperating with the first positioning notch (143), and the second positioning notch (84) is connected to the notch (83) or the through hole; The cooking appliance further comprises a heating device (16), the heating device (16) being arranged at the bottom of the heat-insulating cover (14), a distance being provided between the heating device (16) and the bottom of the inner pot (70), the air inlet direction and the air outlet direction of the fan (30) being parallel to the axis of the fan (30), the axis of the fan (30) being arranged in a transverse direction, and the projection of the heating device (16) in a horizontal plane not coinciding with the projection of the fan (30) in the horizontal plane.
Citation Information
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